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skia2/cmake/CMakeLists.txt
scroggo 3965825b97 Check libpng directly into third_party/ 
With this change, the CMake build, which does not use DEPS to sync
external projects, is able to build and use the same version of libpng
that is used in other builds.

This will allow all platforms (including Google3 CMake build) to test on
the same version of libpng, so we do not need to make SkPngCodec support
all versions of libpng.

- Update CMakeLists.txt to use the checked in libpng.
- Check in libpng version 1.6.22rc01
- Update README.google
- Replace our old LICENSE file with the latest one from libpng
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2033063003
CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac-Clang-x86_64-Release-CMake-Trybot

Review-Url: https://codereview.chromium.org/2033063003
2016-06-02 12:59:59 -07:00

356 lines
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CMake
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# Boilerplate.
cmake_minimum_required (VERSION 3.1) # First version with CMAKE_CXX_STANDARD.
project (skimake)
set (CMAKE_CXX_STANDARD 11)
# Default to Release mode. We're mainly targeting Skia users, not Skia developers.
if (NOT CMAKE_BUILD_TYPE)
set (CMAKE_BUILD_TYPE Release)
endif ()
# To first approximation, the Skia library comprises all .cpp files under src/.
file (GLOB_RECURSE srcs ../src/*.cpp)
function (find_include_dirs out)
file (GLOB_RECURSE headers ${ARGN})
foreach (path ${headers})
get_filename_component (dir ${path} PATH)
list (APPEND include_dirs ${dir})
endforeach()
list (REMOVE_DUPLICATES include_dirs)
set (${out} ${include_dirs} PARENT_SCOPE)
endfunction()
# We need src/ directories and include/private on our path when building Skia.
# Users should be able to use Skia with only include/ directories that are not include/private.
find_include_dirs(private_includes ../src/*.h ../include/private/*.h)
find_include_dirs(public_includes ../include/*.h)
list (REMOVE_ITEM public_includes ${private_includes}) # Easiest way to exclude private.
file (GLOB default_include_config "../include/config")
list (REMOVE_ITEM public_includes ${default_include_config})
set (userconfig_directory ${CMAKE_BINARY_DIR}/include)
list (APPEND public_includes ${userconfig_directory})
# These guys are third_party but provided by a Skia checkout.
list (APPEND srcs ../third_party/etc1/etc1.cpp ../third_party/ktx/ktx.cpp)
list (APPEND private_includes ../third_party/etc1 ../third_party/ktx)
list (APPEND private_includes ../third_party/libpng)
file (GLOB libpng_srcs ../third_party/libpng/*.c)
foreach (src ${libpng_srcs})
list (APPEND srcs ${src})
endforeach()
function (remove_srcs)
file (GLOB_RECURSE to_remove ${ARGN})
list (REMOVE_ITEM srcs ${to_remove})
set (srcs ${srcs} PARENT_SCOPE)
endfunction()
# This file is empty and is only used to trick GYP.
remove_srcs (../src/core/SkForceCPlusPlusLinking.cpp)
# Chrome only?
remove_srcs (../src/ports/SkFontHost_fontconfig.cpp
../src/fonts/SkFontMgr_fontconfig.cpp
../src/ports/SkFontConfigInterface_direct.cpp
../src/ports/SkFontConfigInterface_direct_factory.cpp
../src/ports/SkFontConfigInterface_direct_google3.cpp
../src/ports/SkFontConfigInterface_direct_google3_factory.cpp)
# Alternative font managers.
remove_srcs (../src/ports/SkFontMgr_custom*.cpp)
# Skia sure ships a lot of code no one uses.
remove_srcs (../src/animator/* ../src/*nacl* ../src/svg/* ../src/views/* ../src/xml/*)
foreach (include animator svg svg/parser views xml gpu/vk)
file (GLOB globed_include ../include/${include})
list (REMOVE_ITEM public_includes ${globed_include})
endforeach()
# Remove OS-specific source files.
if (NOT UNIX)
remove_srcs(../src/ports/*_posix.cpp
../src/ports/SkTLS_pthread.cpp
../src/ports/SkTime_Unix.cpp
../src/utils/SkThreadUtils_pthread.cpp)
endif()
if (APPLE OR NOT UNIX)
remove_srcs(../src/gpu/gl/glx/*
../src/ports/SkFontMgr_fontconfig*.cpp
../src/ports/SkFontMgr_android*.cpp
../src/*FreeType*)
endif()
# Remove processor-specific source files.
if (NOT CMAKE_SYSTEM_PROCESSOR STREQUAL ARM)
remove_srcs(../src/*arm* ../src/*ARM* ../src/*neon* ../src/*NEON*)
endif()
if (NOT CMAKE_SYSTEM_PROCESSOR STREQUAL MIPS)
remove_srcs(../src/*mips* ../src/*MIPS*)
endif()
# Make our ports choices.
remove_srcs(
../src/*moz* # We're probably not Mozilla.
../src/gpu/GrContextFactory.cpp # For internal testing only.
../src/gpu/gl/GrGLCreateNativeInterface_none.cpp
../src/gpu/gl/GrGLDefaultInterface_none.cpp
../src/gpu/gl/command_buffer/*
../src/gpu/gl/egl/*
../src/gpu/gl/glfw/*
../src/gpu/gl/iOS/*
../src/gpu/vk/*
../src/opts/SkBitmapProcState_opts_none.cpp
../src/opts/SkBlitMask_opts_none.cpp
../src/opts/SkBlitRow_opts_none.cpp
../src/ports/SkFontMgr_empty_factory.cpp
../src/ports/SkGlobalInitialization_chromium.cpp
../src/ports/SkImageEncoder_none.cpp
../src/ports/SkImageGenerator_none.cpp
../src/ports/SkTLS_none.cpp)
if (NOT APPLE)
remove_srcs(../src/ports/SkImageGeneratorCG.cpp)
endif()
if (NOT WIN32)
remove_srcs(../src/ports/SkImageGeneratorWIC.cpp)
endif()
if (WIN32)
if(SKIA_GDI)
remove_srcs(../src/ports/SkFontMgr_win_dw_factory.cpp)
else()
remove_srcs(../src/ports/SkFontMgr_win_gdi_factory.cpp)
endif()
endif()
# Certain files must be compiled with support for SSSE3, SSE4.1, AVX, or AVX2 intrinsics.
file (GLOB_RECURSE ssse3_srcs ../src/*ssse3*.cpp ../src/*SSSE3*.cpp)
file (GLOB_RECURSE sse41_srcs ../src/*sse4*.cpp ../src/*SSE4*.cpp)
file (GLOB_RECURSE avx_srcs ../src/*_avx.cpp)
file (GLOB_RECURSE avx2_srcs ../src/*_avx2.cpp)
if (NOT WIN32)
set_source_files_properties(${ssse3_srcs} PROPERTIES COMPILE_FLAGS -mssse3)
set_source_files_properties(${sse41_srcs} PROPERTIES COMPILE_FLAGS -msse4.1)
set_source_files_properties(${avx_srcs} PROPERTIES COMPILE_FLAGS -mavx)
set_source_files_properties(${avx2_srcs} PROPERTIES COMPILE_FLAGS -mavx2)
endif()
# Detect our optional dependencies.
# If we can't find them, don't build the parts of Skia that use them.
find_package (EXPAT)
find_package (Lua)
find_package (ZLIB)
# No find_package for libwebp as far as I can tell, so simulate it here.
find_path (WEBP_INCLUDE_DIRS "webp/decode.h")
find_library (WEBP_LIBRARIES webp)
find_path (OSMESA_INCLUDE_DIRS "GL/osmesa.h")
find_library(OSMESA_LIBRARIES "OSMesa")
if (UNIX AND NOT APPLE)
find_package (Freetype)
# Same deal for fontconfig.
find_path (FONTCONFIG_INCLUDE_DIRS "fontconfig/fontconfig.h")
find_library (FONTCONFIG_LIBRARIES fontconfig)
find_package (GIF)
find_package (JPEG)
endif()
# Do not compile SkRawCodec.
remove_srcs(../src/codec/*Raw*.cpp)
# TODO: macro away this if (found) ... else() ... endif() stuff.
if (EXPAT_FOUND)
list (APPEND private_includes ${EXPAT_INCLUDE_DIRS})
list (APPEND libs ${EXPAT_LIBRARIES})
else()
remove_srcs (../src/ports/SkFontMgr_android_parser.cpp)
endif()
if (GIF_FOUND)
list (APPEND private_includes ${GIF_INCLUDE_DIRS})
list (APPEND libs ${GIF_LIBRARIES})
add_definitions(-DSK_HAS_GIF_LIBRARY)
else()
remove_srcs(../src/images/*GIF*)
remove_srcs(../src/codec/*Gif*)
endif()
if (JPEG_FOUND)
list (APPEND private_includes ${JPEG_INCLUDE_DIRS})
list (APPEND libs ${JPEG_LIBRARIES})
add_definitions(-DSK_HAS_JPEG_LIBRARY)
else()
remove_srcs(../src/images/*JPEG*)
remove_srcs(../src/codec/*Jpeg*)
endif()
if (LUA_FOUND)
list (APPEND private_includes ${LUA_INCLUDE_DIR})
list (APPEND libs ${LUA_LIBRARIES})
else()
remove_srcs(../src/utils/*Lua*)
endif()
# PNG
add_definitions(-DSK_HAS_PNG_LIBRARY)
add_definitions(-DPNG_ARM_NEON_OPT=0)
if (ZLIB_FOUND)
list (APPEND private_includes ${ZLIB_INCLUDE_DIRS})
list (APPEND libs ${ZLIB_LIBRARIES})
remove_srcs(../src/pdf/SkDocument_PDF_None.cpp)
else()
remove_srcs(../src/pdf/*.cpp)
set (srcs ${srcs} ../src/pdf/SkDocument_PDF_None.cpp)
endif()
if (WEBP_INCLUDE_DIRS AND WEBP_LIBRARIES)
list (APPEND private_includes ${WEBP_INCLUDE_DIRS})
list (APPEND libs ${WEBP_LIBRARIES})
add_definitions(-DSK_HAS_WEBP_LIBRARY)
else()
remove_srcs(../src/images/*WEBP*)
remove_srcs(../src/codec/*Webp*)
endif()
if (FREETYPE_FOUND)
list (APPEND private_includes ${FREETYPE_INCLUDE_DIRS})
list (APPEND libs ${FREETYPE_LIBRARIES})
endif()
if (FONTCONFIG_INCLUDE_DIRS AND FONTCONFIG_LIBRARIES)
list (APPEND private_includes ${FONTCONFIG_INCLUDE_DIRS})
list (APPEND libs ${FONTCONFIG_LIBRARIES})
endif()
if (APPLE)
find_library(APPLICATION_SERVICES_FRAMEWORK ApplicationServices REQUIRED)
list (APPEND libs ${APPLICATION_SERVICES_FRAMEWORK})
endif()
if (OSMESA_LIBRARIES AND OSMESA_INCLUDE_DIRS)
list (APPEND libs ${OSMESA_LIBRARIES})
list (APPEND private_includes ${OSMESA_INCLUDE_DIRS})
list (APPEND public_defines "-DSK_MESA=1")
set (SK_MESA 1)
else()
remove_srcs(../src/gpu/gl/mesa/*)
endif()
if (WIN32)
list (APPEND libs FontSub.lib Usp10.lib)
else()
list (APPEND libs pthread)
endif()
find_package(OpenGL REQUIRED)
list (APPEND libs ${OPENGL_LIBRARIES})
# This is our main output, libskia.{a,so,dll,dylib,etc...}
# You can control whether this is static or shared with BUILD_SHARED_LIBS.
add_library (skia ${srcs})
target_compile_definitions(skia
PUBLIC ${public_defines}
PRIVATE -DSKIA_DLL -DSKIA_IMPLEMENTATION=1)
target_include_directories(skia
PUBLIC ${public_includes}
PRIVATE ${private_includes})
target_link_libraries(skia
PUBLIC
PRIVATE ${libs})
if (MSVC)
string(REGEX REPLACE " /W3 " " " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
set(cc_flags "/w /GR-")
else()
set(cc_flags "-w -fno-rtti -fno-exceptions")
endif()
set_target_properties(skia PROPERTIES
COMPILE_FLAGS ${cc_flags})
if (BUILD_SHARED_LIBS)
set_target_properties(skia PROPERTIES
CXX_VISIBILITY_PRESET hidden
VISIBILITY_INLINES_HIDDEN true)
endif()
# Experimental C API install:
file(GLOB c_headers "../include/c/*.h")
install(FILES ${c_headers} DESTINATION include)
install(TARGETS skia DESTINATION lib)
# SkUserConfig.h
if (CMAKE_BUILD_TYPE STREQUAL Release)
set (SK_RELEASE 1)
else()
set (SK_RELEASE 0)
endif()
if (UNIX AND NOT APPLE)
set (SK_SAMPLES_FOR_X 1)
else()
set (SK_SAMPLES_FOR_X 0)
endif()
configure_file ("SkUserConfig.h.in" "${userconfig_directory}/SkUserConfig.h")
# skia_link_arguments.txt
set (link_arguments ${CMAKE_BINARY_DIR}/skia_link_arguments.txt)
if (BUILD_SHARED_LIBS)
file (WRITE ${link_arguments} "-L${CMAKE_BINARY_DIR}\n")
file (APPEND ${link_arguments} "-lskia\n")
file (APPEND ${link_arguments} "-Wl,-rpath,${CMAKE_BINARY_DIR}\n")
else()
file (WRITE ${link_arguments} "${CMAKE_BINARY_DIR}/libskia.a\n")
foreach (lib ${libs})
if (EXISTS ${lib})
get_filename_component(lib_path ${lib} ABSOLUTE)
file (APPEND ${link_arguments} "${lib_path}\n")
else()
file (APPEND ${link_arguments} "-l${lib}\n")
endif()
endforeach()
endif()
# skia_compile_arguments.txt
set (compile_arguments ${CMAKE_BINARY_DIR}/skia_compile_arguments.txt)
file (WRITE ${compile_arguments} "--std=c++11\n")
foreach (include ${public_includes})
get_filename_component (abs_include ${include} ABSOLUTE)
file (APPEND ${compile_arguments} "-I${abs_include}\n")
endforeach()
# cmake .
# cmake --build . --target skia
# c++ -c @skia_compile_arguments.txt example.cpp
# c++ example.o @skia_link_arguments.txt
# skia.h
set (bad_files GrGLConfig_chrome.h SkJSONCPP.h SkParsePaint.h)
# make `c++ @skia_compile_arguments.txt include/skia.h` work.
set (skia_h_path ${userconfig_directory}/skia.h)
file (WRITE ${skia_h_path} "// skia.h generated by CMake.\n")
file(APPEND ${skia_h_path} "#ifndef skia_DEFINED\n")
file(APPEND ${skia_h_path} "#define skia_DEFINED\n")
foreach (include ${public_includes})
if (NOT include STREQUAL userconfig_directory)
file (APPEND ${skia_h_path} "\n")
file (GLOB all_public_headers ${include}/*.h)
foreach (public_header ${all_public_headers})
get_filename_component (filename_component ${public_header} NAME)
if (NOT ";${bad_files};" MATCHES ";${filename_component};")
file (APPEND ${skia_h_path} "#include \"${filename_component}\"\n")
endif ()
endforeach()
endif()
endforeach()
file(APPEND ${skia_h_path} "\n#endif // skia_DEFINED\n")
# Now build a simple example app that uses Skia via libskia.so.
add_executable(example example.cpp)
target_link_libraries(example skia ${OPENGL_LIBRARIES})
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