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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.
# 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)
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)
# This file forces linking for all our supported image decoders. We're more fine-grained.
remove_srcs (../src/images/SkForceLinking.cpp)
# Chrome only?
remove_srcs (../src/ports/SkFontHost_fontconfig.cpp
../src/fonts/SkFontMgr_fontconfig.cpp
../src/ports/SkFontConfigInterface_direct.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/*)
# 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/images/SkImageDecoder_FactoryDefault.cpp
../src/ports/SkFontMgr_fontconfig*.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/SkCreatePlatformGLContext*.cpp # For internal testing only.
../src/gpu/gl/command_buffer/*
../src/gpu/gl/egl/*
../src/gpu/gl/iOS/*
../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/SkImageDecoder_empty.cpp
../src/ports/SkImageGenerator_none.cpp
../src/ports/SkTLS_none.cpp)
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()
remove_srcs(../src/gpu/gl/angle/*) # TODO
remove_srcs(../src/codec/* ../src/android/*) # TODO: Requires Chromium's libjpeg-turbo, and incompatible giflib.
# Certain files must be compiled with support for SSSE3 or SSE4.1 intrinsics.
file (GLOB_RECURSE ssse3_srcs ../src/*ssse3*.cpp ../src/*SSSE3*.cpp)
file (GLOB_RECURSE sse41_srcs ../src/*sse4*.cpp ../src/*SSE4*.cpp)
set_source_files_properties(${ssse3_srcs} PROPERTIES COMPILE_FLAGS -mssse3)
set_source_files_properties(${sse41_srcs} PROPERTIES COMPILE_FLAGS -msse4.1)
# 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)
find_package (PNG)
endif()
# 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})
else()
remove_srcs(../src/images/*gif*)
endif()
if (JPEG_FOUND)
list (APPEND private_includes ${JPEG_INCLUDE_DIRS})
list (APPEND libs ${JPEG_LIBRARIES})
else()
remove_srcs(../src/images/*jpeg*)
endif()
if (LUA_FOUND)
list (APPEND private_includes ${LUA_INCLUDE_DIR})
list (APPEND libs ${LUA_LIBRARIES})
else()
remove_srcs(../src/utils/*Lua*)
endif()
if (PNG_FOUND)
list (APPEND private_includes ${PNG_INCLUDE_DIRS})
list (APPEND libs ${PNG_LIBRARIES})
else()
remove_srcs(../src/images/*png*)
endif()
if (ZLIB_FOUND)
list (APPEND private_includes ${ZLIB_INCLUDE_DIRS})
list (APPEND libs ${ZLIB_LIBRARIES})
remove_srcs(../src/doc/SkDocument_PDF_None.cpp)
else()
remove_srcs(../src/pdf/*.cpp ../src/doc/SkDocument_PDF.cpp)
endif()
if (WEBP_INCLUDE_DIRS AND WEBP_LIBRARIES)
list (APPEND private_includes ${WEBP_INCLUDE_DIRS})
list (APPEND libs ${WEBP_LIBRARIES})
else()
remove_srcs(../src/images/*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")
else()
remove_srcs(../src/gpu/gl/mesa/*)
endif()
if (WIN32)
list (APPEND libs FontSub.lib Usp10.lib)
endif()
find_package(OpenGL REQUIRED)
list (APPEND libs ${OPENGL_LIBRARIES})
# This is our main output, libskia.so.
# We mostly build an .so here because it helps test we've linked everything,
# not so much that we think Skia is a good candidate to ship as a shared library.
add_library (skia SHARED ${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)
set(cc_flags "/w /GR-")
else()
set(cc_flags "-w -fno-rtti -fno-exceptions")
endif()
set_target_properties(skia PROPERTIES
COMPILE_FLAGS ${cc_flags}
CXX_VISIBILITY_PRESET hidden
VISIBILITY_INLINES_HIDDEN true)
# Experimental C API install:
file(GLOB c_headers "../include/c/*.h")
install(FILES ${c_headers} DESTINATION include)
install(TARGETS skia DESTINATION lib)
# 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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