1ee76510f5
I sometimes dream to hone our build process down to something as simple as
$ find src -name '*.cpp' | xargs c++ <some cflags> -c -o skia.o
To start, it helps if we can compile all files on all platforms. Each
non-portable file guards itself with defines provided by SkTypes.h. This does
not convert all non-portable code, but it's a good representative chunk.
E.g. instead of having to remember which SkDebug_*.cpp to compile on which
platform we can just compile all three and let the code itself sort it out.
This has the nice side effect of making non-portable code declare the
conditions under which it can compile explicitly.
I've been testing mostly with the CMake build as it's easiest, but this should
apply equally to BUILD, Gyp, and GN files... to any build system really.
BUG=skia:4269
CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac10.9-Clang-x86_64-Release-CMake-Trybot
Review URL: https://codereview.chromium.org/1411283005
251 lines
8.2 KiB
CMake
251 lines
8.2 KiB
CMake
# Boilerplate.
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cmake_minimum_required (VERSION 3.1) # First version with CMAKE_CXX_STANDARD.
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project (skimake)
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set (CMAKE_CXX_STANDARD 11)
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# Default to Release mode. We're mainly targeting Skia users, not Skia developers.
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if (NOT CMAKE_BUILD_TYPE)
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set (CMAKE_BUILD_TYPE Release)
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endif ()
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# To first approximation, the Skia library comprises all .cpp files under src/.
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file (GLOB_RECURSE srcs ../src/*.cpp)
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function (find_include_dirs out)
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file (GLOB_RECURSE headers ${ARGN})
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foreach (path ${headers})
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get_filename_component (dir ${path} PATH)
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list (APPEND include_dirs ${dir})
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endforeach()
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list (REMOVE_DUPLICATES include_dirs)
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set (${out} ${include_dirs} PARENT_SCOPE)
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endfunction()
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# We need src/ directories and include/private on our path when building Skia.
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# Users should be able to use Skia with only include/ directories that are not include/private.
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find_include_dirs(private_includes ../src/*.h ../include/private/*.h)
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find_include_dirs(public_includes ../include/*.h)
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list (REMOVE_ITEM public_includes ${private_includes}) # Easiest way to exclude private.
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# These guys are third_party but provided by a Skia checkout.
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list (APPEND srcs ../third_party/etc1/etc1.cpp ../third_party/ktx/ktx.cpp)
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list (APPEND private_includes ../third_party/etc1 ../third_party/ktx)
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function (remove_srcs)
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file (GLOB_RECURSE to_remove ${ARGN})
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list (REMOVE_ITEM srcs ${to_remove})
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set (srcs ${srcs} PARENT_SCOPE)
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endfunction()
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# This file is empty and is only used to trick GYP.
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remove_srcs (../src/core/SkForceCPlusPlusLinking.cpp)
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# This file forces linking for all our supported image decoders. We're more fine-grained.
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remove_srcs (../src/images/SkForceLinking.cpp)
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# Chrome only?
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remove_srcs (../src/ports/SkFontHost_fontconfig.cpp
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../src/fonts/SkFontMgr_fontconfig.cpp
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../src/ports/SkFontConfigInterface_direct.cpp)
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# Alternative font managers.
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remove_srcs (../src/ports/SkFontMgr_custom*.cpp)
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# Skia sure ships a lot of code no one uses.
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remove_srcs (../src/animator/* ../src/*nacl* ../src/svg/* ../src/views/* ../src/xml/*)
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# Remove OS-specific source files.
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if (NOT UNIX)
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remove_srcs(../src/ports/*_posix.cpp
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../src/ports/SkTLS_pthread.cpp
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../src/ports/SkTime_Unix.cpp
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../src/utils/SkThreadUtils_pthread.cpp)
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endif()
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if (APPLE OR NOT UNIX)
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remove_srcs(../src/gpu/gl/glx/*
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../src/images/SkImageDecoder_FactoryDefault.cpp
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../src/ports/SkFontMgr_fontconfig*.cpp
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../src/*FreeType*)
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endif()
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# Remove processor-specific source files.
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if (NOT CMAKE_SYSTEM_PROCESSOR STREQUAL ARM)
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remove_srcs(../src/*arm* ../src/*ARM* ../src/*neon* ../src/*NEON*)
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endif()
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if (NOT CMAKE_SYSTEM_PROCESSOR STREQUAL MIPS)
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remove_srcs(../src/*mips* ../src/*MIPS*)
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endif()
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# Make our ports choices.
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remove_srcs(
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../src/*moz* # We're probably not Mozilla.
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../src/gpu/GrContextFactory.cpp # For internal testing only.
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../src/gpu/gl/GrGLCreateNativeInterface_none.cpp
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../src/gpu/gl/GrGLDefaultInterface_none.cpp
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../src/gpu/gl/SkCreatePlatformGLContext*.cpp # For internal testing only.
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../src/gpu/gl/command_buffer/*
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../src/gpu/gl/egl/*
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../src/gpu/gl/iOS/*
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../src/opts/SkBitmapProcState_opts_none.cpp
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../src/opts/SkBlitMask_opts_none.cpp
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../src/opts/SkBlitRow_opts_none.cpp
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../src/ports/SkFontMgr_empty_factory.cpp
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../src/ports/SkGlobalInitialization_chromium.cpp
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../src/ports/SkImageDecoder_empty.cpp
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../src/ports/SkImageGenerator_none.cpp
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../src/ports/SkTLS_none.cpp)
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if (WIN32)
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if(SKIA_GDI)
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remove_srcs(../src/ports/SkFontMgr_win_dw_factory.cpp)
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else()
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remove_srcs(../src/ports/SkFontMgr_win_gdi_factory.cpp)
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endif()
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endif()
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remove_srcs(../src/gpu/gl/angle/*) # TODO
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remove_srcs(../src/codec/*) # TODO: Requires Chromium's libjpeg-turbo, and incompatible giflib.
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# Certain files must be compiled with support for SSSE3 or SSE4.1 intrinsics.
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file (GLOB_RECURSE ssse3_srcs ../src/*ssse3*.cpp ../src/*SSSE3*.cpp)
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file (GLOB_RECURSE sse41_srcs ../src/*sse4*.cpp ../src/*SSE4*.cpp)
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set_source_files_properties(${ssse3_srcs} PROPERTIES COMPILE_FLAGS -mssse3)
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set_source_files_properties(${sse41_srcs} PROPERTIES COMPILE_FLAGS -msse4.1)
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# Detect our optional dependencies.
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# If we can't find them, don't build the parts of Skia that use them.
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find_package (EXPAT)
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find_package (Lua)
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find_package (ZLIB)
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# No find_package for libwebp as far as I can tell, so simulate it here.
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find_path (WEBP_INCLUDE_DIRS "webp/decode.h")
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find_library (WEBP_LIBRARIES webp)
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find_path (OSMESA_INCLUDE_DIRS "GL/osmesa.h")
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find_library(OSMESA_LIBRARIES "OSMesa")
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if (UNIX AND NOT APPLE)
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find_package (Freetype)
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# Same deal for fontconfig.
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find_path (FONTCONFIG_INCLUDE_DIRS "fontconfig/fontconfig.h")
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find_library (FONTCONFIG_LIBRARIES fontconfig)
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find_package (GIF)
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find_package (JPEG)
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find_package (PNG)
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endif()
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# TODO: macro away this if (found) ... else() ... endif() stuff.
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if (EXPAT_FOUND)
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list (APPEND private_includes ${EXPAT_INCLUDE_DIRS})
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list (APPEND libs ${EXPAT_LIBRARIES})
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else()
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remove_srcs (../src/ports/SkFontMgr_android_parser.cpp)
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endif()
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if (GIF_FOUND)
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list (APPEND private_includes ${GIF_INCLUDE_DIRS})
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list (APPEND libs ${GIF_LIBRARIES})
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else()
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remove_srcs(../src/images/*gif*)
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endif()
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if (JPEG_FOUND)
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list (APPEND private_includes ${JPEG_INCLUDE_DIRS})
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list (APPEND libs ${JPEG_LIBRARIES})
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else()
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remove_srcs(../src/images/*jpeg*)
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endif()
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if (LUA_FOUND)
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list (APPEND private_includes ${LUA_INCLUDE_DIR})
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list (APPEND libs ${LUA_LIBRARIES})
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else()
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remove_srcs(../src/utils/*Lua*)
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endif()
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if (PNG_FOUND)
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list (APPEND private_includes ${PNG_INCLUDE_DIRS})
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list (APPEND libs ${PNG_LIBRARIES})
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else()
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remove_srcs(../src/images/*png*)
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endif()
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if (ZLIB_FOUND)
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list (APPEND private_includes ${ZLIB_INCLUDE_DIRS})
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list (APPEND libs ${ZLIB_LIBRARIES})
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remove_srcs(../src/doc/SkDocument_PDF_None.cpp)
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else()
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remove_srcs(../src/pdf/*.cpp ../src/doc/SkDocument_PDF.cpp)
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endif()
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if (WEBP_INCLUDE_DIRS AND WEBP_LIBRARIES)
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list (APPEND private_includes ${WEBP_INCLUDE_DIRS})
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list (APPEND libs ${WEBP_LIBRARIES})
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else()
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remove_srcs(../src/images/*webp*)
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endif()
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if (FREETYPE_FOUND)
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list (APPEND private_includes ${FREETYPE_INCLUDE_DIRS})
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list (APPEND libs ${FREETYPE_LIBRARIES})
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endif()
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if (FONTCONFIG_INCLUDE_DIRS AND FONTCONFIG_LIBRARIES)
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list (APPEND private_includes ${FONTCONFIG_INCLUDE_DIRS})
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list (APPEND libs ${FONTCONFIG_LIBRARIES})
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endif()
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if (APPLE)
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find_library(APPLICATION_SERVICES_FRAMEWORK ApplicationServices REQUIRED)
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list (APPEND libs ${APPLICATION_SERVICES_FRAMEWORK})
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endif()
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if (OSMESA_LIBRARIES AND OSMESA_INCLUDE_DIRS)
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list (APPEND libs ${OSMESA_LIBRARIES})
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list (APPEND private_includes ${OSMESA_INCLUDE_DIRS})
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list (APPEND public_defines "-DSK_MESA=1")
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else()
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remove_srcs(../src/gpu/gl/mesa/*)
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endif()
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if (WIN32)
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list (APPEND libs FontSub.lib Usp10.lib)
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endif()
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find_package(OpenGL REQUIRED)
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list (APPEND libs ${OPENGL_LIBRARIES})
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# This is our main output, libskia.so.
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# We mostly build an .so here because it helps test we've linked everything,
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# not so much that we think Skia is a good candidate to ship as a shared library.
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add_library (skia SHARED ${srcs})
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target_compile_definitions(skia
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PUBLIC ${public_defines}
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PRIVATE -DSKIA_DLL -DSKIA_IMPLEMENTATION=1)
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target_include_directories(skia
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PUBLIC ${public_includes}
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PRIVATE ${private_includes})
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target_link_libraries(skia
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PUBLIC
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PRIVATE ${libs})
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if (MSVC)
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set(cc_flags "/w /GR-")
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else()
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set(cc_flags "-w -fno-rtti -fno-exceptions")
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endif()
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set_target_properties(skia PROPERTIES
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COMPILE_FLAGS ${cc_flags}
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CXX_VISIBILITY_PRESET hidden
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VISIBILITY_INLINES_HIDDEN true)
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# Experimental C API install:
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file(GLOB c_headers "../include/c/*.h")
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install(FILES ${c_headers} DESTINATION include)
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install(TARGETS skia DESTINATION lib)
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# Now build a simple example app that uses Skia via libskia.so.
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add_executable(example example.cpp)
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target_link_libraries(example skia ${OPENGL_LIBRARIES})
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