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libwebp/CMakeLists.txt
Pascal Massimino ca9f7b7dd6 WebP-JS: emscripten-based Javascript decoder 
The build is based on CMake.

There is a demo HTML page under webp_js/index.html

See README.webp_js file.

BUG=webp:261

Change-Id: I6612378b89907efd7b863720c6becf98385fc406
2017-02-07 11:02:42 +00:00

223 lines
8.1 KiB
CMake
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cmake_minimum_required(VERSION 2.8.7)
project(libwebp C)
# Options for coder / decoder executables.
option(WEBP_ENABLE_SIMD "Enable any SIMD optimization." ON)
option(WEBP_BUILD_CWEBP "Build the cwebp command line tool." OFF)
option(WEBP_BUILD_DWEBP "Build the dwebp command line tool." OFF)
option(WEBP_BUILD_GIF2WEBP "Build the gif2webp conversion tool." OFF)
option(WEBP_BUILD_IMG2WEBP "Build the img2webp animation tool." OFF)
option(WEBP_BUILD_WEBP_JS "Emscripten build of webp.js." OFF)
option(WEBP_EXPERIMENTAL_FEATURES "Build with experimental features." OFF)
option(WEBP_ENABLE_SWAP_16BIT_CSP "Enable byte swap for 16 bit colorspaces." OFF)
if(WEBP_BUILD_WEBP_JS)
set(WEBP_ENABLE_SIMD OFF)
endif()
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()
include(cmake/config.h.cmake)
################################################################################
# Options.
if(WEBP_ENABLE_SWAP_16BIT_CSP)
add_definitions(-DWEBP_SWAP_16BIT_CSP)
endif()
################################################################################
# Android only.
if(ANDROID)
include_directories(${ANDROID_NDK}/sources/android/cpufeatures)
add_library(cpufeatures STATIC
${ANDROID_NDK}/sources/android/cpufeatures/cpu-features.c
)
target_link_libraries(cpufeatures dl)
set(WEBP_DEP_LIBRARIES ${WEBP_DEP_LIBRARIES} cpufeatures)
set(WEBP_DEP_INCLUDE_DIRS ${WEBP_DEP_INCLUDE_DIRS}
${ANDROID_NDK}/sources/android/cpufeatures
)
endif()
################################################################################
# WebP source files.
# Read the Makefile.am to get the source files.
# We expect the Makefiles to define the sources as defined in
# the first regex. E.g.:
# libimagedec_la_SOURCES = image_dec.c image_dec.h
function(parse_Makefile_am FOLDER VAR SRC_REGEX)
file(READ ${FOLDER}/Makefile.am MAKEFILE_AM)
string(REGEX MATCHALL "${SRC_REGEX}_SOURCES[ ]*\\+?=[ ]+[0-9a-z\\._ ]*"
FILES_PER_LINE ${MAKEFILE_AM}
)
set(SRCS ${${VAR}})
foreach(FILES ${FILES_PER_LINE})
string(FIND ${FILES} "=" OFFSET)
math(EXPR OFFSET "${OFFSET} + 2")
string(SUBSTRING ${FILES} ${OFFSET} -1 FILES)
if(FILES)
string(REGEX MATCHALL "[0-9a-z\\._]+"
FILES ${FILES}
)
foreach(FILE ${FILES})
list(APPEND SRCS ${FOLDER}/${FILE})
endforeach()
endif()
endforeach()
set(${VAR} ${SRCS} PARENT_SCOPE)
endfunction()
set(WEBP_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
parse_Makefile_am(${WEBP_SRC_DIR}/dec "WEBP_DEC_SRCS" "")
parse_Makefile_am(${WEBP_SRC_DIR}/demux "WEBP_DEMUX_SRCS" "")
parse_Makefile_am(${WEBP_SRC_DIR}/dsp "WEBP_DSP_COMMON_SRCS" "COMMON")
parse_Makefile_am(${WEBP_SRC_DIR}/dsp "WEBP_DSP_ENC_SRCS" "ENC")
parse_Makefile_am(${WEBP_SRC_DIR}/dsp "WEBP_DSP_ENC_SRCS" "dsp_[^ ]*")
parse_Makefile_am(${WEBP_SRC_DIR}/dsp "WEBP_DSP_DEC_SRCS" "decode_[^ ]*")
parse_Makefile_am(${WEBP_SRC_DIR}/enc "WEBP_ENC_SRCS" "")
parse_Makefile_am(${WEBP_SRC_DIR}/utils "WEBP_UTILS_COMMON_SRCS" "COMMON")
parse_Makefile_am(${WEBP_SRC_DIR}/utils "WEBP_UTILS_ENC_SRCS" "ENC")
parse_Makefile_am(${WEBP_SRC_DIR}/utils "WEBP_UTILS_DEC_SRCS" "decode_[^ ]*")
# Remove the files specific to SIMD we don't use.
foreach(FILE ${WEBP_SIMD_FILES_NOT_TO_INCLUDE})
list(REMOVE_ITEM WEBP_DSP_ENC_SRCS ${FILE})
list(REMOVE_ITEM WEBP_DSP_DEC_SRCS ${FILE})
endforeach()
# Build the webpdecoder library.
add_definitions(-Wall)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src/ ${WEBP_DEP_INCLUDE_DIRS})
add_library(webpdecode OBJECT ${WEBP_DEC_SRCS})
add_library(webpdspdecode OBJECT ${WEBP_DSP_COMMON_SRCS} ${WEBP_DSP_DEC_SRCS})
add_library(webputilsdecode OBJECT ${WEBP_UTILS_COMMON_SRCS}
${WEBP_UTILS_DEC_SRCS})
add_library(webpdecoder $<TARGET_OBJECTS:webpdecode>
$<TARGET_OBJECTS:webpdspdecode> $<TARGET_OBJECTS:webputilsdecode>)
target_link_libraries(webpdecoder ${WEBP_DEP_LIBRARIES})
# Build the webp library.
add_library(webpencode OBJECT ${WEBP_ENC_SRCS})
add_library(webpdsp OBJECT ${WEBP_DSP_COMMON_SRCS} ${WEBP_DSP_DEC_SRCS}
${WEBP_DSP_ENC_SRCS})
add_library(webputils OBJECT ${WEBP_UTILS_COMMON_SRCS} ${WEBP_UTILS_DEC_SRCS}
${WEBP_UTILS_ENC_SRCS})
add_library(webp $<TARGET_OBJECTS:webpdecode> $<TARGET_OBJECTS:webpdsp>
$<TARGET_OBJECTS:webpencode> $<TARGET_OBJECTS:webputils>)
target_link_libraries(webp ${WEBP_DEP_LIBRARIES})
# Make sure the OBJECT libraries are built with position independent code
# (it is not ON by default).
set_target_properties(webpdecode webpdspdecode webputilsdecode
webpencode webpdsp webputils PROPERTIES POSITION_INDEPENDENT_CODE ON)
# Build the webp demux library.
add_library(webpdemux ${WEBP_DEMUX_SRCS})
target_link_libraries(webpdemux webp)
# Change the compile flags for SIMD files we use.
list(LENGTH WEBP_SIMD_FILES_TO_INCLUDE WEBP_SIMD_FILES_TO_INCLUDE_LENGTH)
math(EXPR WEBP_SIMD_FILES_TO_INCLUDE_RANGE
"${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 ${SIMD_COMPILE_FLAG}
)
endforeach()
# Build the executables if asked for.
if(WEBP_BUILD_CWEBP OR WEBP_BUILD_DWEBP OR
WEBP_BUILD_GIF2WEBP OR WEBP_BUILD_IMG2WEBP OR WEBP_BUILD_WEBP_JS)
# Example utility library.
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "EXAMPLEUTIL_SRCS"
"example_util_[^ ]*")
list(APPEND EXAMPLEUTIL_SRCS
${CMAKE_CURRENT_SOURCE_DIR}/examples/stopwatch.h)
add_library(exampleutil ${EXAMPLEUTIL_SRCS})
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/imageio "IMAGEIOUTILS_SRCS"
"imageio_util_[^ ]*")
add_library(imageioutil ${IMAGEIOUTILS_SRCS})
target_link_libraries(imageioutil webp)
# Image-decoding utility library.
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/imageio "IMAGEDEC_SRCS"
"imagedec_[^ ]*")
add_library(imagedec ${IMAGEDEC_SRCS})
target_link_libraries(imagedec imageioutil webp ${WEBP_DEP_IMG_LIBRARIES})
# Image-encoding utility library.
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/imageio "IMAGEENC_SRCS"
"imageenc_[^ ]*")
add_library(imageenc ${IMAGEENC_SRCS})
target_link_libraries(imageenc webp)
endif()
if(WEBP_BUILD_DWEBP)
# dwebp
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "DWEBP_SRCS"
"dwebp")
add_executable(dwebp ${DWEBP_SRCS})
target_link_libraries(dwebp exampleutil imagedec imageenc webpdecoder)
endif()
if(WEBP_BUILD_CWEBP)
# cwebp
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "CWEBP_SRCS"
"cwebp")
add_executable(cwebp ${CWEBP_SRCS})
target_link_libraries(cwebp exampleutil imagedec webp)
endif()
if(WEBP_BUILD_GIF2WEBP OR WEBP_BUILD_IMG2WEBP)
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/src/mux "WEBP_MUX_SRCS"
"")
add_library(webpmux ${WEBP_MUX_SRCS})
target_link_libraries(webpmux webp)
endif()
if(WEBP_BUILD_GIF2WEBP)
# gif2webp
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "GIF2WEBP_SRCS"
"gif2webp")
add_executable(gif2webp ${GIF2WEBP_SRCS})
target_link_libraries(gif2webp exampleutil imageioutil webp webpmux
${WEBP_DEP_IMG_LIBRARIES})
endif()
if(WEBP_BUILD_IMG2WEBP)
# img2webp
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
parse_Makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "IMG2WEBP_SRCS"
"img2webp")
add_executable(img2webp ${IMG2WEBP_SRCS})
target_link_libraries(img2webp exampleutil imagedec imageioutil webp webpmux)
endif()
if(WEBP_BUILD_WEBP_JS)
add_executable(webp_js
${CMAKE_CURRENT_SOURCE_DIR}/extras/webp_to_sdl.c)
target_link_libraries(webp_js webpdecoder SDL)
set_target_properties(webp_js PROPERTIES LINK_FLAGS
"-s EXPORTED_FUNCTIONS='[\"_WebpToSDL\"]' -s INVOKE_RUN=0")
set_target_properties(webp_js PROPERTIES OUTPUT_NAME webp)
target_compile_definitions(webp_js PUBLIC EMSCRIPTEN WEBP_HAVE_SDL)
target_compile_definitions(webpdecoder PUBLIC EMSCRIPTEN)
endif()
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