BUILD.gn - platform/external/skia - Gitiles

 # Copyright 2016 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.

 declare_args() {
   skia_enable_tools = !is_fuchsia && !is_component_build

   skia_use_expat = true
   skia_use_fontconfig = is_linux
   skia_use_freetype = is_android || is_linux
   skia_use_giflib = !is_fuchsia
   skia_use_libjpeg_turbo = true
   skia_use_libpng = true
   skia_use_libwebp = !is_fuchsia
   skia_use_sfntly = !is_fuchsia
   skia_use_zlib = true
 }

 fontmgr_android_enabled = skia_use_expat && skia_use_freetype

 skia_public_includes = [
   "include/android",
   "include/c",
   "include/codec",
   "include/config",
   "include/core",
   "include/effects",
   "include/gpu",
   "include/gpu/gl",
   "include/images",
   "include/pathops",
   "include/ports",
   "include/svg",
   "include/utils",
   "include/utils/mac",
   "include/xml",
 ]

 # Skia public API, generally provided by :skia.
 config("skia_public") {
   include_dirs = skia_public_includes
   defines = [ "SKIA_DLL" ]
   if (is_linux) {
     defines += [ "SK_SAMPLES_FOR_X" ]
   }
 }

 # Skia internal APIs, used by Skia itself and a few test tools.
 config("skia_private") {
   visibility = [ ":*" ]

   include_dirs = [
     "include/private",
     "src/c",
     "src/codec",
     "src/config",
     "src/core",
     "src/effects",
     "src/effects/gradients",
     "src/fonts",
     "src/gpu",
     "src/image",
     "src/images",
     "src/lazy",
     "src/opts",
     "src/pathops",
     "src/pdf",
     "src/ports",
     "src/sfnt",
     "src/sksl",
     "src/utils",
     "src/utils/win",
     "third_party/etc1",
     "third_party/ktx",
   ]

   defines = [ "SK_GAMMA_APPLY_TO_A8" ]
 }

 # Any code that's linked into Skia-the-library should use this config via += skia_library_configs.
 config("skia_library") {
   visibility = [ ":*" ]
   defines = [ "SKIA_IMPLEMENTATION=1" ]
 }

 skia_library_configs = [
   ":skia_public",
   ":skia_private",
   ":skia_library",
 ]

 core_gypi = exec_script("gn/gypi_to_gn.py",
                         [
                           rebase_path("gyp/core.gypi"),
                           "--replace=<(skia_include_path)=include",
                           "--replace=<(skia_src_path)=src",
                         ],
                         "scope",
                         [ "gyp/core.gypi" ])

 effects_gypi = exec_script("gn/gypi_to_gn.py",
                            [
                              rebase_path("gyp/effects.gypi"),
                              "--replace=<(skia_include_path)=include",
                              "--replace=<(skia_src_path)=src",
                            ],
                            "scope",
                            [ "gyp/effects.gypi" ])

 gpu_gypi = exec_script("gn/gypi_to_gn.py",
                        [
                          rebase_path("gyp/gpu.gypi"),
                          "--replace=<(skia_include_path)=include",
                          "--replace=<(skia_src_path)=src",
                        ],
                        "scope",
                        [ "gyp/gpu.gypi" ])

 opts_gypi = exec_script("gn/gypi_to_gn.py",
                         [
                           rebase_path("gyp/opts.gypi"),
                           "--replace=<(skia_include_path)=include",
                           "--replace=<(skia_src_path)=src",
                         ],
                         "scope",
                         [ "gyp/opts.gypi" ])

 pdf_gypi = exec_script("gn/gypi_to_gn.py",
                        [
                          rebase_path("gyp/pdf.gypi"),
                          "--replace=<(skia_include_path)=include",
                          "--replace=<(skia_src_path)=src",
                        ],
                        "scope",
                        [ "gyp/pdf.gypi" ])

 sksl_gypi = exec_script("gn/gypi_to_gn.py",
                         [
                           rebase_path("gyp/sksl.gypi"),
                           "--replace=<(skia_include_path)=include",
                           "--replace=<(skia_src_path)=src",
                         ],
                         "scope",
                         [ "gyp/sksl.gypi" ])

 utils_gypi = exec_script("gn/gypi_to_gn.py",
                          [
                            rebase_path("gyp/utils.gypi"),
                            "--replace=<(skia_include_path)=include",
                            "--replace=<(skia_src_path)=src",
                          ],
                          "scope",
                          [ "gyp/utils.gypi" ])

 # Use for CPU-specific Skia code that needs particular compiler flags.
 template("opts") {
   if (invoker.enabled) {
     source_set(target_name) {
       forward_variables_from(invoker, "*")
       configs += skia_library_configs
     }
   } else {
     # If not enabled, a phony empty target that swallows all otherwise unused variables.
     source_set(target_name) {
       forward_variables_from(invoker,
                              "*",
                              [
                                "sources",
                                "cflags",
                              ])
     }
   }
 }

 is_x86 = current_cpu == "x64" || current_cpu == "x86"

 opts("none") {
   enabled = !is_x86 && current_cpu != "arm" && current_cpu != "arm64"
   sources = opts_gypi.none_sources
   cflags = []
 }

 opts("armv7") {
   enabled = current_cpu == "arm"
   sources = opts_gypi.armv7_sources + opts_gypi.neon_sources
   cflags = []
 }

 opts("arm64") {
   enabled = current_cpu == "arm64"
   sources = opts_gypi.arm64_sources
   cflags = []
 }

 opts("crc32") {
   enabled = current_cpu == "arm64"
   sources = opts_gypi.crc32_sources
   cflags = [ "-march=armv8-a+crc" ]
 }

 opts("sse2") {
   enabled = is_x86
   sources = opts_gypi.sse2_sources
   cflags = [ "-msse2" ]
 }

 opts("ssse3") {
   enabled = is_x86
   sources = opts_gypi.ssse3_sources
   cflags = [ "-mssse3" ]
 }

 opts("sse41") {
   enabled = is_x86
   sources = opts_gypi.sse41_sources
   cflags = [ "-msse4.1" ]
 }

 opts("sse42") {
   enabled = is_x86
   sources = opts_gypi.sse42_sources
   cflags = [ "-msse4.2" ]
 }

 opts("avx") {
   enabled = is_x86
   sources = opts_gypi.avx_sources
   cflags = [ "-mavx" ]
 }

 opts("dsp") {
   enabled = current_cpu == "mipsel"
   sources = opts_gypi.mips_dsp_sources
   cflags = []
 }

 # Any feature of Skia that requires third-party code should be optional and use this template.
 template("optional") {
   if (invoker.enabled) {
     config(target_name + "_public") {
       if (defined(invoker.public_defines)) {
         defines = invoker.public_defines
       }
     }
     source_set(target_name) {
       forward_variables_from(invoker,
                              "*",
                              [
                                "public_defines",
                                "sources_when_disabled",
                              ])
       all_dependent_configs = [ ":" + target_name + "_public" ]
       configs += skia_library_configs
     }
   } else {
     source_set(target_name) {
       forward_variables_from(invoker,
                              "*",
                              [
                                "public_defines",
                                "deps",
                                "sources",
                                "sources_when_disabled",
                              ])
       if (defined(invoker.sources_when_disabled)) {
         sources = invoker.sources_when_disabled
       }
       configs += skia_library_configs
     }
   }
 }

 optional("fontmgr_android") {
   enabled = fontmgr_android_enabled

   deps = [
     "//third_party/expat",
     "//third_party/freetype2",
   ]
   sources = [
     "src/ports/SkFontMgr_android.cpp",
     "src/ports/SkFontMgr_android_factory.cpp",
     "src/ports/SkFontMgr_android_parser.cpp",
   ]
 }

 optional("fontmgr_fontconfig") {
   enabled = skia_use_freetype && skia_use_fontconfig

   deps = [
     "//third_party:fontconfig",
     "//third_party/freetype2",
   ]
   sources = [
     "src/ports/SkFontConfigInterface_direct.cpp",
     "src/ports/SkFontConfigInterface_direct_factory.cpp",
     "src/ports/SkFontMgr_FontConfigInterface.cpp",
     "src/ports/SkFontMgr_fontconfig.cpp",
     "src/ports/SkFontMgr_fontconfig_factory.cpp",
   ]
 }

 optional("gif") {
   enabled = skia_use_giflib
   public_defines = [ "SK_HAS_GIF_LIBRARY" ]

   deps = [
     "//third_party/giflib",
   ]
   sources = [
     "src/codec/SkGifCodec.cpp",
   ]
 }

 optional("jpeg") {
   enabled = skia_use_libjpeg_turbo
   public_defines = [ "SK_HAS_JPEG_LIBRARY" ]

   deps = [
     "//third_party/libjpeg-turbo:libjpeg",
   ]
   sources = [
     "src/codec/SkJpegCodec.cpp",
     "src/codec/SkJpegDecoderMgr.cpp",
     "src/codec/SkJpegUtility.cpp",
     "src/images/SkJPEGImageEncoder.cpp",
     "src/images/SkJPEGWriteUtility.cpp",
   ]
 }

 optional("pdf") {
   enabled = skia_use_zlib

   deps = [
     "//third_party/zlib",
   ]
   sources = pdf_gypi.sources
   sources_when_disabled = [ "src/pdf/SkDocument_PDF_None.cpp" ]

   if (skia_use_sfntly) {
     deps += [ "//third_party/sfntly" ]
     public_defines = [ "SK_PDF_USE_SFNTLY" ]
   }
 }

 optional("png") {
   enabled = skia_use_libpng
   public_defines = [ "SK_HAS_PNG_LIBRARY" ]

   deps = [
     "//third_party/libpng",
   ]
   sources = [
     "src/codec/SkIcoCodec.cpp",
     "src/codec/SkPngCodec.cpp",
     "src/images/SkPNGImageEncoder.cpp",
   ]
 }

 optional("typeface_freetype") {
   enabled = skia_use_freetype

   deps = [
     "//third_party/freetype2",
   ]
   sources = [
     "src/ports/SkFontHost_FreeType.cpp",
     "src/ports/SkFontHost_FreeType_common.cpp",
   ]
 }

 optional("webp") {
   enabled = skia_use_libwebp
   public_defines = [ "SK_HAS_WEBP_LIBRARY" ]

   deps = [
     "//third_party/libwebp",
   ]
   sources = [
     "src/codec/SkWebpAdapterCodec.cpp",
     "src/codec/SkWebpCodec.cpp",
     "src/images/SkWEBPImageEncoder.cpp",
   ]
 }

 optional("xml") {
   enabled = skia_use_expat

   deps = [
     "//third_party/expat",
   ]
   sources = [
     "src/xml/SkDOM.cpp",
     "src/xml/SkXMLParser.cpp",
     "src/xml/SkXMLWriter.cpp",
   ]
 }

 component("skia") {
   public_configs = [ ":skia_public" ]
   configs += skia_library_configs

   deps = [
     ":arm64",
     ":armv7",
     ":avx",
     ":crc32",
     ":dsp",
     ":fontmgr_android",
     ":fontmgr_fontconfig",
     ":gif",
     ":jpeg",
     ":none",
     ":pdf",
     ":png",
     ":sse2",
     ":sse41",
     ":sse42",
     ":ssse3",
     ":typeface_freetype",
     ":webp",
     ":xml",
   ]

   sources = []
   sources += core_gypi.sources
   sources += effects_gypi.sources
   sources += gpu_gypi.skgpu_sources
   sources += sksl_gypi.sources
   sources += utils_gypi.sources
   sources += [
     "src/android/SkBitmapRegionCodec.cpp",
     "src/android/SkBitmapRegionDecoder.cpp",
     "src/codec/SkAndroidCodec.cpp",
     "src/codec/SkBmpCodec.cpp",
     "src/codec/SkBmpMaskCodec.cpp",
     "src/codec/SkBmpRLECodec.cpp",
     "src/codec/SkBmpStandardCodec.cpp",
     "src/codec/SkCodec.cpp",
     "src/codec/SkCodecImageGenerator.cpp",
     "src/codec/SkMaskSwizzler.cpp",
     "src/codec/SkMasks.cpp",
     "src/codec/SkSampledCodec.cpp",
     "src/codec/SkSampler.cpp",
     "src/codec/SkSwizzler.cpp",
     "src/codec/SkWbmpCodec.cpp",
     "src/gpu/gl/GrGLDefaultInterface_native.cpp",
     "src/images/SkImageEncoder.cpp",
     "src/images/SkImageEncoder_Factory.cpp",
     "src/images/SkKTXImageEncoder.cpp",
     "src/ports/SkDiscardableMemory_none.cpp",
     "src/ports/SkGlobalInitialization_default.cpp",
     "src/ports/SkImageGenerator_skia.cpp",
     "src/ports/SkMemory_malloc.cpp",
     "src/ports/SkOSFile_stdio.cpp",
     "src/sfnt/SkOTTable_name.cpp",
     "src/sfnt/SkOTUtils.cpp",
     "src/svg/SkSVGCanvas.cpp",
     "src/svg/SkSVGDevice.cpp",
     "src/utils/mac/SkStream_mac.cpp",
     "third_party/etc1/etc1.cpp",
     "third_party/ktx/ktx.cpp",
   ]
   sources -= [
     "src/gpu/gl/GrGLCreateNativeInterface_none.cpp",
     "src/gpu/gl/GrGLDefaultInterface_none.cpp",
   ]

   libs = []

   if (is_win) {
     sources += [
       "src/ports/SkDebug_win.cpp",
       "src/ports/SkFontHost_win.cpp",
       "src/ports/SkFontMgr_win_dw.cpp",
       "src/ports/SkFontMgr_win_dw_factory.cpp",
       "src/ports/SkImageEncoder_WIC.cpp",
       "src/ports/SkImageGeneratorWIC.cpp",
       "src/ports/SkOSFile_win.cpp",
       "src/ports/SkScalerContext_win_dw.cpp",
       "src/ports/SkTLS_win.cpp",
       "src/ports/SkTypeface_win_dw.cpp",
       "src/xps/SkDocument_XPS.cpp",
     ]
     sources -= [ "src/utils/SkThreadUtils_pthread.cpp" ]
   } else {
     sources += [
       "src/ports/SkOSFile_posix.cpp",
       "src/ports/SkTLS_pthread.cpp",
       "src/xps/SkDocument_XPS_None.cpp",
     ]
   }

   if (is_android) {
     deps += [
       "//third_party/cpu-features",
       "//third_party/expat",
     ]
     sources += [
       "src/gpu/gl/android/GrGLCreateNativeInterface_android.cpp",
       "src/ports/SkDebug_android.cpp",
     ]
     libs += [
       "EGL",
       "GLESv2",
       "log",
     ]
   }

   if (is_linux) {
     libs += [
       "GL",
       "GLU",
       "X11",
     ]
     sources += [
       "src/gpu/gl/glx/GrGLCreateNativeInterface_glx.cpp",
       "src/ports/SkDebug_stdio.cpp",
     ]
   }

   if (is_mac) {
     sources += [
       "src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp",
       "src/ports/SkDebug_stdio.cpp",
       "src/ports/SkFontHost_mac.cpp",
       "src/ports/SkImageEncoder_CG.cpp",
       "src/ports/SkImageGeneratorCG.cpp",
     ]
     libs += [
       "ApplicationServices.framework",
       "OpenGL.framework",
     ]
   }

   if (is_fuchsia) {
     sources += [
       "src/gpu/gl/GrGLCreateNativeInterface_none.cpp",
       "src/ports/SkDebug_stdio.cpp",
       "src/ports/SkFontMgr_empty_factory.cpp",
     ]
   }
 }

 skia_h_headers = exec_script("gyp/find.py",
                              [ "*.h" ] + rebase_path(skia_public_includes),
                              "list lines",
                              []) -
                  [
                    rebase_path("include/gpu/gl/GrGLConfig_chrome.h"),
                    rebase_path("include/gpu/vk/GrVkBackendContext.h"),
                    rebase_path("include/gpu/vk/GrVkDefines.h"),
                    rebase_path("include/gpu/vk/GrVkInterface.h"),
                    rebase_path("include/gpu/vk/GrVkTypes.h"),
                    rebase_path("include/ports/SkFontMgr_fontconfig.h"),
                  ]

 action("skia.h") {
   script = "gn/echo_headers.py"
   args = [ rebase_path("$target_gen_dir/skia.h", root_build_dir) ] +
          rebase_path(skia_h_headers, target_gen_dir)
   outputs = [
     "$target_gen_dir/skia.h",
   ]
 }

 executable("fiddle") {
   include_dirs = [ "$target_gen_dir" ]
   libs = []
   if (is_linux) {
     libs += [ "OSMesa" ]
   }

   sources = [
     "src/images/SkForceLinking.cpp",
     "tools/fiddle/draw.cpp",
     "tools/fiddle/fiddle_main.cpp",
   ]
   deps = [
     ":skia",
     ":skia.h",
   ]
 }

 # Targets guarded by skia_enable_tools may use //third_party freely.
 if (skia_enable_tools) {
   template("test_lib") {
     config(target_name + "_config") {
       include_dirs = invoker.public_include_dirs
     }
     source_set(target_name) {
       forward_variables_from(invoker, "*", [ "public_include_dirs" ])
       public_configs = [
         ":" + target_name + "_config",
         ":skia_private",
       ]

       if (!defined(deps)) {
         deps = []
       }
       deps += [ ":skia" ]
       testonly = true
     }
   }

   test_lib("gpu_tool_utils") {
     public_include_dirs = [ "tools/gpu" ]
     sources = [
       "tools/gpu/GrContextFactory.cpp",
       "tools/gpu/GrTest.cpp",
       "tools/gpu/TestContext.cpp",
       "tools/gpu/gl/GLTestContext.cpp",
       "tools/gpu/gl/debug/DebugGLTestContext.cpp",
       "tools/gpu/gl/debug/GrBufferObj.cpp",
       "tools/gpu/gl/debug/GrFrameBufferObj.cpp",
       "tools/gpu/gl/debug/GrProgramObj.cpp",
       "tools/gpu/gl/debug/GrShaderObj.cpp",
       "tools/gpu/gl/debug/GrTextureObj.cpp",
       "tools/gpu/gl/debug/GrTextureUnitObj.cpp",
       "tools/gpu/gl/null/NullGLTestContext.cpp",
     ]
     libs = []

     if (is_android) {
       sources += [ "tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp" ]
     } else if (is_linux) {
       sources += [ "tools/gpu/gl/glx/CreatePlatformGLTestContext_glx.cpp" ]
     } else if (is_mac) {
       sources += [ "tools/gpu/gl/mac/CreatePlatformGLTestContext_mac.cpp" ]
     }
   }

   test_lib("flags") {
     public_include_dirs = [ "tools/flags" ]
     sources = [
       "tools/flags/SkCommandLineFlags.cpp",
       "tools/flags/SkCommonFlags.cpp",
       "tools/flags/SkCommonFlagsConfig.cpp",
     ]
     deps = [
       ":gpu_tool_utils",
     ]
   }

   test_lib("tool_utils") {
     public_include_dirs = [
       "tools",
       "tools/debugger",
       "tools/timer",
     ]
     sources = [
       "src/images/SkForceLinking.cpp",
       "src/utils/SkMultiPictureDocumentReader.cpp",  # TODO(halcanary): move to tools?
       "tools/CrashHandler.cpp",
       "tools/LsanSuppressions.cpp",
       "tools/ProcStats.cpp",
       "tools/Resources.cpp",
       "tools/ThermalManager.cpp",
       "tools/UrlDataManager.cpp",
       "tools/debugger/SkDebugCanvas.cpp",
       "tools/debugger/SkDrawCommand.cpp",
       "tools/debugger/SkJsonWriteBuffer.cpp",
       "tools/debugger/SkObjectParser.cpp",
       "tools/debugger/SkOverdrawMode.cpp",
       "tools/picture_utils.cpp",
       "tools/random_parse_path.cpp",
       "tools/sk_tool_utils.cpp",
       "tools/sk_tool_utils_font.cpp",
       "tools/timer/Timer.cpp",
     ]
     deps = [
       ":flags",
       "//third_party/libpng",
     ]
     public_deps = [
       "//third_party/jsoncpp",
     ]
   }

   gm_sources = exec_script("gyp/find.py",
                            [
                              "*.c*",
                              rebase_path("gm"),
                            ],
                            "list lines",
                            [])
   test_lib("gm") {
     public_include_dirs = [ "gm" ]
     sources = gm_sources
     deps = [
       ":gpu_tool_utils",
       ":skia",
       ":tool_utils",
     ]
   }

   tests_sources = exec_script("gyp/find.py",
                               [
                                 "*.c*",
                                 rebase_path("tests"),
                               ],
                               "list lines",
                               [])

   test_lib("tests") {
     public_include_dirs = [ "tests" ]
     sources = tests_sources - [
                 rebase_path("tests/PathOpsSkpClipTest.cpp"),  # alternate main
                 rebase_path("tests/SkpSkGrTest.cpp"),  # doesn't compile
                 rebase_path("tests/skia_test.cpp"),  # alternate main
               ]
     if (!fontmgr_android_enabled) {
       sources -= [ rebase_path("tests/FontMgrAndroidParserTest.cpp") ]
     }
     deps = [
       ":experimental_svg_model",
       ":flags",
       ":gpu_tool_utils",
       ":skia",
       ":tool_utils",
       "//third_party/libpng",
       "//third_party/zlib",
     ]
   }

   bench_sources = exec_script("gyp/find.py",
                               [
                                 "*.c*",
                                 rebase_path("bench"),
                               ],
                               "list lines",
                               [])

   test_lib("bench") {
     public_include_dirs = [ "bench" ]
     sources = bench_sources
     sources -= [
       rebase_path("bench/nanobench.cpp"),
       rebase_path("bench/nanobenchAndroid.cpp"),
     ]
     deps = [
       ":flags",
       ":gm",
       ":gpu_tool_utils",
       ":skia",
       ":tool_utils",
     ]
   }

   test_lib("experimental_svg_model") {
     public_include_dirs = [ "experimental/svg/model" ]
     sources = [
       "experimental/svg/model/SkSVGAttribute.cpp",
       "experimental/svg/model/SkSVGAttributeParser.cpp",
       "experimental/svg/model/SkSVGCircle.cpp",
       "experimental/svg/model/SkSVGContainer.cpp",
       "experimental/svg/model/SkSVGDOM.cpp",
       "experimental/svg/model/SkSVGEllipse.cpp",
       "experimental/svg/model/SkSVGLine.cpp",
       "experimental/svg/model/SkSVGNode.cpp",
       "experimental/svg/model/SkSVGPath.cpp",
       "experimental/svg/model/SkSVGPoly.cpp",
       "experimental/svg/model/SkSVGRect.cpp",
       "experimental/svg/model/SkSVGRenderContext.cpp",
       "experimental/svg/model/SkSVGSVG.cpp",
       "experimental/svg/model/SkSVGShape.cpp",
       "experimental/svg/model/SkSVGTransformableNode.cpp",
       "experimental/svg/model/SkSVGValue.cpp",
     ]
     deps = [
       ":skia",
     ]
   }

   executable("dm") {
     sources = [
       "dm/DM.cpp",
       "dm/DMJsonWriter.cpp",
       "dm/DMSrcSink.cpp",
     ]
     include_dirs = [ "tests" ]
     deps = [
       ":experimental_svg_model",
       ":flags",
       ":gm",
       ":gpu_tool_utils",
       ":skia",
       ":tests",
       ":tool_utils",
       "//third_party/jsoncpp",
       "//third_party/libpng",
     ]
     testonly = true
   }

   executable("monobench") {
     sources = [
       "tools/monobench.cpp",
     ]
     deps = [
       ":bench",
       ":skia",
     ]
     testonly = true
   }

   executable("nanobench") {
     sources = [
       "bench/nanobench.cpp",
     ]
     deps = [
       ":bench",
       ":flags",
       ":gm",
       ":gpu_tool_utils",
       ":skia",
       ":tool_utils",
       "//third_party/jsoncpp",
     ]
     testonly = true
   }

   if (current_cpu != "mipsel") {  # Clang 3.8 crashes while compiling hb-icu.cc for mipsel.
     executable("sktexttopdf") {
       sources = [
         "tools/SkShaper_harfbuzz.cpp",
         "tools/using_skia_and_harfbuzz.cpp",
       ]
       deps = [
         ":skia",
         "//third_party/harfbuzz",
       ]
       testonly = true
     }
   }
 }
	# Copyright 2016 Google Inc.
	#
	# Use of this source code is governed by a BSD-style license that can be
	# found in the LICENSE file.

	declare_args() {
	skia_enable_tools = !is_fuchsia && !is_component_build

	skia_use_expat = true
	skia_use_fontconfig = is_linux
	skia_use_freetype = is_android \|\| is_linux
	skia_use_giflib = !is_fuchsia
	skia_use_libjpeg_turbo = true
	skia_use_libpng = true
	skia_use_libwebp = !is_fuchsia
	skia_use_sfntly = !is_fuchsia
	skia_use_zlib = true
	}

	fontmgr_android_enabled = skia_use_expat && skia_use_freetype

	skia_public_includes = [
	"include/android",
	"include/c",
	"include/codec",
	"include/config",
	"include/core",
	"include/effects",
	"include/gpu",
	"include/gpu/gl",
	"include/images",
	"include/pathops",
	"include/ports",
	"include/svg",
	"include/utils",
	"include/utils/mac",
	"include/xml",
	]

	# Skia public API, generally provided by :skia.
	config("skia_public") {
	include_dirs = skia_public_includes
	defines = [ "SKIA_DLL" ]
	if (is_linux) {
	defines += [ "SK_SAMPLES_FOR_X" ]
	}
	}

	# Skia internal APIs, used by Skia itself and a few test tools.
	config("skia_private") {
	visibility = [ ":*" ]

	include_dirs = [
	"include/private",
	"src/c",
	"src/codec",
	"src/config",
	"src/core",
	"src/effects",
	"src/effects/gradients",
	"src/fonts",
	"src/gpu",
	"src/image",
	"src/images",
	"src/lazy",
	"src/opts",
	"src/pathops",
	"src/pdf",
	"src/ports",
	"src/sfnt",
	"src/sksl",
	"src/utils",
	"src/utils/win",
	"third_party/etc1",
	"third_party/ktx",
	]

	defines = [ "SK_GAMMA_APPLY_TO_A8" ]
	}

	# Any code that's linked into Skia-the-library should use this config via += skia_library_configs.
	config("skia_library") {
	visibility = [ ":*" ]
	defines = [ "SKIA_IMPLEMENTATION=1" ]
	}

	skia_library_configs = [
	":skia_public",
	":skia_private",
	":skia_library",
	]

	core_gypi = exec_script("gn/gypi_to_gn.py",
	[
	rebase_path("gyp/core.gypi"),
	"--replace=<(skia_include_path)=include",
	"--replace=<(skia_src_path)=src",
	],
	"scope",
	[ "gyp/core.gypi" ])

	effects_gypi = exec_script("gn/gypi_to_gn.py",
	[
	rebase_path("gyp/effects.gypi"),
	"--replace=<(skia_include_path)=include",
	"--replace=<(skia_src_path)=src",
	],
	"scope",
	[ "gyp/effects.gypi" ])

	gpu_gypi = exec_script("gn/gypi_to_gn.py",
	[
	rebase_path("gyp/gpu.gypi"),
	"--replace=<(skia_include_path)=include",
	"--replace=<(skia_src_path)=src",
	],
	"scope",
	[ "gyp/gpu.gypi" ])

	opts_gypi = exec_script("gn/gypi_to_gn.py",
	[
	rebase_path("gyp/opts.gypi"),
	"--replace=<(skia_include_path)=include",
	"--replace=<(skia_src_path)=src",
	],
	"scope",
	[ "gyp/opts.gypi" ])

	pdf_gypi = exec_script("gn/gypi_to_gn.py",
	[
	rebase_path("gyp/pdf.gypi"),
	"--replace=<(skia_include_path)=include",
	"--replace=<(skia_src_path)=src",
	],
	"scope",
	[ "gyp/pdf.gypi" ])

	sksl_gypi = exec_script("gn/gypi_to_gn.py",
	[
	rebase_path("gyp/sksl.gypi"),
	"--replace=<(skia_include_path)=include",
	"--replace=<(skia_src_path)=src",
	],
	"scope",
	[ "gyp/sksl.gypi" ])

	utils_gypi = exec_script("gn/gypi_to_gn.py",
	[
	rebase_path("gyp/utils.gypi"),
	"--replace=<(skia_include_path)=include",
	"--replace=<(skia_src_path)=src",
	],
	"scope",
	[ "gyp/utils.gypi" ])

	# Use for CPU-specific Skia code that needs particular compiler flags.
	template("opts") {
	if (invoker.enabled) {
	source_set(target_name) {
	forward_variables_from(invoker, "*")
	configs += skia_library_configs
	}
	} else {
	# If not enabled, a phony empty target that swallows all otherwise unused variables.
	source_set(target_name) {
	forward_variables_from(invoker,
	"*",
	[
	"sources",
	"cflags",
	])
	}
	}
	}

	is_x86 = current_cpu == "x64" \|\| current_cpu == "x86"

	opts("none") {
	enabled = !is_x86 && current_cpu != "arm" && current_cpu != "arm64"
	sources = opts_gypi.none_sources
	cflags = []
	}

	opts("armv7") {
	enabled = current_cpu == "arm"
	sources = opts_gypi.armv7_sources + opts_gypi.neon_sources
	cflags = []
	}

	opts("arm64") {
	enabled = current_cpu == "arm64"
	sources = opts_gypi.arm64_sources
	cflags = []
	}

	opts("crc32") {
	enabled = current_cpu == "arm64"
	sources = opts_gypi.crc32_sources
	cflags = [ "-march=armv8-a+crc" ]
	}

	opts("sse2") {
	enabled = is_x86
	sources = opts_gypi.sse2_sources
	cflags = [ "-msse2" ]
	}

	opts("ssse3") {
	enabled = is_x86
	sources = opts_gypi.ssse3_sources
	cflags = [ "-mssse3" ]
	}

	opts("sse41") {
	enabled = is_x86
	sources = opts_gypi.sse41_sources
	cflags = [ "-msse4.1" ]
	}

	opts("sse42") {
	enabled = is_x86
	sources = opts_gypi.sse42_sources
	cflags = [ "-msse4.2" ]
	}

	opts("avx") {
	enabled = is_x86
	sources = opts_gypi.avx_sources
	cflags = [ "-mavx" ]
	}

	opts("dsp") {
	enabled = current_cpu == "mipsel"
	sources = opts_gypi.mips_dsp_sources
	cflags = []
	}

	# Any feature of Skia that requires third-party code should be optional and use this template.
	template("optional") {
	if (invoker.enabled) {
	config(target_name + "_public") {
	if (defined(invoker.public_defines)) {
	defines = invoker.public_defines
	}
	}
	source_set(target_name) {
	forward_variables_from(invoker,
	"*",
	[
	"public_defines",
	"sources_when_disabled",
	])
	all_dependent_configs = [ ":" + target_name + "_public" ]
	configs += skia_library_configs
	}
	} else {
	source_set(target_name) {
	forward_variables_from(invoker,
	"*",
	[
	"public_defines",
	"deps",
	"sources",
	"sources_when_disabled",
	])
	if (defined(invoker.sources_when_disabled)) {
	sources = invoker.sources_when_disabled
	}
	configs += skia_library_configs
	}
	}
	}

	optional("fontmgr_android") {
	enabled = fontmgr_android_enabled

	deps = [
	"//third_party/expat",
	"//third_party/freetype2",
	]
	sources = [
	"src/ports/SkFontMgr_android.cpp",
	"src/ports/SkFontMgr_android_factory.cpp",
	"src/ports/SkFontMgr_android_parser.cpp",
	]
	}

	optional("fontmgr_fontconfig") {
	enabled = skia_use_freetype && skia_use_fontconfig

	deps = [
	"//third_party:fontconfig",
	"//third_party/freetype2",
	]
	sources = [
	"src/ports/SkFontConfigInterface_direct.cpp",
	"src/ports/SkFontConfigInterface_direct_factory.cpp",
	"src/ports/SkFontMgr_FontConfigInterface.cpp",
	"src/ports/SkFontMgr_fontconfig.cpp",
	"src/ports/SkFontMgr_fontconfig_factory.cpp",
	]
	}

	optional("gif") {
	enabled = skia_use_giflib
	public_defines = [ "SK_HAS_GIF_LIBRARY" ]

	deps = [
	"//third_party/giflib",
	]
	sources = [
	"src/codec/SkGifCodec.cpp",
	]
	}

	optional("jpeg") {
	enabled = skia_use_libjpeg_turbo
	public_defines = [ "SK_HAS_JPEG_LIBRARY" ]

	deps = [
	"//third_party/libjpeg-turbo:libjpeg",
	]
	sources = [
	"src/codec/SkJpegCodec.cpp",
	"src/codec/SkJpegDecoderMgr.cpp",
	"src/codec/SkJpegUtility.cpp",
	"src/images/SkJPEGImageEncoder.cpp",
	"src/images/SkJPEGWriteUtility.cpp",
	]
	}

	optional("pdf") {
	enabled = skia_use_zlib

	deps = [
	"//third_party/zlib",
	]
	sources = pdf_gypi.sources
	sources_when_disabled = [ "src/pdf/SkDocument_PDF_None.cpp" ]

	if (skia_use_sfntly) {
	deps += [ "//third_party/sfntly" ]
	public_defines = [ "SK_PDF_USE_SFNTLY" ]
	}
	}

	optional("png") {
	enabled = skia_use_libpng
	public_defines = [ "SK_HAS_PNG_LIBRARY" ]

	deps = [
	"//third_party/libpng",
	]
	sources = [
	"src/codec/SkIcoCodec.cpp",
	"src/codec/SkPngCodec.cpp",
	"src/images/SkPNGImageEncoder.cpp",
	]
	}

	optional("typeface_freetype") {
	enabled = skia_use_freetype

	deps = [
	"//third_party/freetype2",
	]
	sources = [
	"src/ports/SkFontHost_FreeType.cpp",
	"src/ports/SkFontHost_FreeType_common.cpp",
	]
	}

	optional("webp") {
	enabled = skia_use_libwebp
	public_defines = [ "SK_HAS_WEBP_LIBRARY" ]

	deps = [
	"//third_party/libwebp",
	]
	sources = [
	"src/codec/SkWebpAdapterCodec.cpp",
	"src/codec/SkWebpCodec.cpp",
	"src/images/SkWEBPImageEncoder.cpp",
	]
	}

	optional("xml") {
	enabled = skia_use_expat

	deps = [
	"//third_party/expat",
	]
	sources = [
	"src/xml/SkDOM.cpp",
	"src/xml/SkXMLParser.cpp",
	"src/xml/SkXMLWriter.cpp",
	]
	}

	component("skia") {
	public_configs = [ ":skia_public" ]
	configs += skia_library_configs

	deps = [
	":arm64",
	":armv7",
	":avx",
	":crc32",
	":dsp",
	":fontmgr_android",
	":fontmgr_fontconfig",
	":gif",
	":jpeg",
	":none",
	":pdf",
	":png",
	":sse2",
	":sse41",
	":sse42",
	":ssse3",
	":typeface_freetype",
	":webp",
	":xml",
	]

	sources = []
	sources += core_gypi.sources
	sources += effects_gypi.sources
	sources += gpu_gypi.skgpu_sources
	sources += sksl_gypi.sources
	sources += utils_gypi.sources
	sources += [
	"src/android/SkBitmapRegionCodec.cpp",
	"src/android/SkBitmapRegionDecoder.cpp",
	"src/codec/SkAndroidCodec.cpp",
	"src/codec/SkBmpCodec.cpp",
	"src/codec/SkBmpMaskCodec.cpp",
	"src/codec/SkBmpRLECodec.cpp",
	"src/codec/SkBmpStandardCodec.cpp",
	"src/codec/SkCodec.cpp",
	"src/codec/SkCodecImageGenerator.cpp",
	"src/codec/SkMaskSwizzler.cpp",
	"src/codec/SkMasks.cpp",
	"src/codec/SkSampledCodec.cpp",
	"src/codec/SkSampler.cpp",
	"src/codec/SkSwizzler.cpp",
	"src/codec/SkWbmpCodec.cpp",
	"src/gpu/gl/GrGLDefaultInterface_native.cpp",
	"src/images/SkImageEncoder.cpp",
	"src/images/SkImageEncoder_Factory.cpp",
	"src/images/SkKTXImageEncoder.cpp",
	"src/ports/SkDiscardableMemory_none.cpp",
	"src/ports/SkGlobalInitialization_default.cpp",
	"src/ports/SkImageGenerator_skia.cpp",
	"src/ports/SkMemory_malloc.cpp",
	"src/ports/SkOSFile_stdio.cpp",
	"src/sfnt/SkOTTable_name.cpp",
	"src/sfnt/SkOTUtils.cpp",
	"src/svg/SkSVGCanvas.cpp",
	"src/svg/SkSVGDevice.cpp",
	"src/utils/mac/SkStream_mac.cpp",
	"third_party/etc1/etc1.cpp",
	"third_party/ktx/ktx.cpp",
	]
	sources -= [
	"src/gpu/gl/GrGLCreateNativeInterface_none.cpp",
	"src/gpu/gl/GrGLDefaultInterface_none.cpp",
	]

	libs = []

	if (is_win) {
	sources += [
	"src/ports/SkDebug_win.cpp",
	"src/ports/SkFontHost_win.cpp",
	"src/ports/SkFontMgr_win_dw.cpp",
	"src/ports/SkFontMgr_win_dw_factory.cpp",
	"src/ports/SkImageEncoder_WIC.cpp",
	"src/ports/SkImageGeneratorWIC.cpp",
	"src/ports/SkOSFile_win.cpp",
	"src/ports/SkScalerContext_win_dw.cpp",
	"src/ports/SkTLS_win.cpp",
	"src/ports/SkTypeface_win_dw.cpp",
	"src/xps/SkDocument_XPS.cpp",
	]
	sources -= [ "src/utils/SkThreadUtils_pthread.cpp" ]
	} else {
	sources += [
	"src/ports/SkOSFile_posix.cpp",
	"src/ports/SkTLS_pthread.cpp",
	"src/xps/SkDocument_XPS_None.cpp",
	]
	}

	if (is_android) {
	deps += [
	"//third_party/cpu-features",
	"//third_party/expat",
	]
	sources += [
	"src/gpu/gl/android/GrGLCreateNativeInterface_android.cpp",
	"src/ports/SkDebug_android.cpp",
	]
	libs += [
	"EGL",
	"GLESv2",
	"log",
	]
	}

	if (is_linux) {
	libs += [
	"GL",
	"GLU",
	"X11",
	]
	sources += [
	"src/gpu/gl/glx/GrGLCreateNativeInterface_glx.cpp",
	"src/ports/SkDebug_stdio.cpp",
	]
	}

	if (is_mac) {
	sources += [
	"src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp",
	"src/ports/SkDebug_stdio.cpp",
	"src/ports/SkFontHost_mac.cpp",
	"src/ports/SkImageEncoder_CG.cpp",
	"src/ports/SkImageGeneratorCG.cpp",
	]
	libs += [
	"ApplicationServices.framework",
	"OpenGL.framework",
	]
	}

	if (is_fuchsia) {
	sources += [
	"src/gpu/gl/GrGLCreateNativeInterface_none.cpp",
	"src/ports/SkDebug_stdio.cpp",
	"src/ports/SkFontMgr_empty_factory.cpp",
	]
	}
	}

	skia_h_headers = exec_script("gyp/find.py",
	[ "*.h" ] + rebase_path(skia_public_includes),
	"list lines",
	[]) -
	[
	rebase_path("include/gpu/gl/GrGLConfig_chrome.h"),
	rebase_path("include/gpu/vk/GrVkBackendContext.h"),
	rebase_path("include/gpu/vk/GrVkDefines.h"),
	rebase_path("include/gpu/vk/GrVkInterface.h"),
	rebase_path("include/gpu/vk/GrVkTypes.h"),
	rebase_path("include/ports/SkFontMgr_fontconfig.h"),
	]

	action("skia.h") {
	script = "gn/echo_headers.py"
	args = [ rebase_path("$target_gen_dir/skia.h", root_build_dir) ] +
	rebase_path(skia_h_headers, target_gen_dir)
	outputs = [
	"$target_gen_dir/skia.h",
	]
	}

	executable("fiddle") {
	include_dirs = [ "$target_gen_dir" ]
	libs = []
	if (is_linux) {
	libs += [ "OSMesa" ]
	}

	sources = [
	"src/images/SkForceLinking.cpp",
	"tools/fiddle/draw.cpp",
	"tools/fiddle/fiddle_main.cpp",
	]
	deps = [
	":skia",
	":skia.h",
	]
	}

	# Targets guarded by skia_enable_tools may use //third_party freely.
	if (skia_enable_tools) {
	template("test_lib") {
	config(target_name + "_config") {
	include_dirs = invoker.public_include_dirs
	}
	source_set(target_name) {
	forward_variables_from(invoker, "*", [ "public_include_dirs" ])
	public_configs = [
	":" + target_name + "_config",
	":skia_private",
	]

	if (!defined(deps)) {
	deps = []
	}
	deps += [ ":skia" ]
	testonly = true
	}
	}

	test_lib("gpu_tool_utils") {
	public_include_dirs = [ "tools/gpu" ]
	sources = [
	"tools/gpu/GrContextFactory.cpp",
	"tools/gpu/GrTest.cpp",
	"tools/gpu/TestContext.cpp",
	"tools/gpu/gl/GLTestContext.cpp",
	"tools/gpu/gl/debug/DebugGLTestContext.cpp",
	"tools/gpu/gl/debug/GrBufferObj.cpp",
	"tools/gpu/gl/debug/GrFrameBufferObj.cpp",
	"tools/gpu/gl/debug/GrProgramObj.cpp",
	"tools/gpu/gl/debug/GrShaderObj.cpp",
	"tools/gpu/gl/debug/GrTextureObj.cpp",
	"tools/gpu/gl/debug/GrTextureUnitObj.cpp",
	"tools/gpu/gl/null/NullGLTestContext.cpp",
	]
	libs = []

	if (is_android) {
	sources += [ "tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp" ]
	} else if (is_linux) {
	sources += [ "tools/gpu/gl/glx/CreatePlatformGLTestContext_glx.cpp" ]
	} else if (is_mac) {
	sources += [ "tools/gpu/gl/mac/CreatePlatformGLTestContext_mac.cpp" ]
	}
	}

	test_lib("flags") {
	public_include_dirs = [ "tools/flags" ]
	sources = [
	"tools/flags/SkCommandLineFlags.cpp",
	"tools/flags/SkCommonFlags.cpp",
	"tools/flags/SkCommonFlagsConfig.cpp",
	]
	deps = [
	":gpu_tool_utils",
	]
	}

	test_lib("tool_utils") {
	public_include_dirs = [
	"tools",
	"tools/debugger",
	"tools/timer",
	]
	sources = [
	"src/images/SkForceLinking.cpp",
	"src/utils/SkMultiPictureDocumentReader.cpp", # TODO(halcanary): move to tools?
	"tools/CrashHandler.cpp",
	"tools/LsanSuppressions.cpp",
	"tools/ProcStats.cpp",
	"tools/Resources.cpp",
	"tools/ThermalManager.cpp",
	"tools/UrlDataManager.cpp",
	"tools/debugger/SkDebugCanvas.cpp",
	"tools/debugger/SkDrawCommand.cpp",
	"tools/debugger/SkJsonWriteBuffer.cpp",
	"tools/debugger/SkObjectParser.cpp",
	"tools/debugger/SkOverdrawMode.cpp",
	"tools/picture_utils.cpp",
	"tools/random_parse_path.cpp",
	"tools/sk_tool_utils.cpp",
	"tools/sk_tool_utils_font.cpp",
	"tools/timer/Timer.cpp",
	]
	deps = [
	":flags",
	"//third_party/libpng",
	]
	public_deps = [
	"//third_party/jsoncpp",
	]
	}

	gm_sources = exec_script("gyp/find.py",
	[
	".c",
	rebase_path("gm"),
	],
	"list lines",
	[])
	test_lib("gm") {
	public_include_dirs = [ "gm" ]
	sources = gm_sources
	deps = [
	":gpu_tool_utils",
	":skia",
	":tool_utils",
	]
	}

	tests_sources = exec_script("gyp/find.py",
	[
	".c",
	rebase_path("tests"),
	],
	"list lines",
	[])

	test_lib("tests") {
	public_include_dirs = [ "tests" ]
	sources = tests_sources - [
	rebase_path("tests/PathOpsSkpClipTest.cpp"), # alternate main
	rebase_path("tests/SkpSkGrTest.cpp"), # doesn't compile
	rebase_path("tests/skia_test.cpp"), # alternate main
	]
	if (!fontmgr_android_enabled) {
	sources -= [ rebase_path("tests/FontMgrAndroidParserTest.cpp") ]
	}
	deps = [
	":experimental_svg_model",
	":flags",
	":gpu_tool_utils",
	":skia",
	":tool_utils",
	"//third_party/libpng",
	"//third_party/zlib",
	]
	}

	bench_sources = exec_script("gyp/find.py",
	[
	".c",
	rebase_path("bench"),
	],
	"list lines",
	[])

	test_lib("bench") {
	public_include_dirs = [ "bench" ]
	sources = bench_sources
	sources -= [
	rebase_path("bench/nanobench.cpp"),
	rebase_path("bench/nanobenchAndroid.cpp"),
	]
	deps = [
	":flags",
	":gm",
	":gpu_tool_utils",
	":skia",
	":tool_utils",
	]
	}

	test_lib("experimental_svg_model") {
	public_include_dirs = [ "experimental/svg/model" ]
	sources = [
	"experimental/svg/model/SkSVGAttribute.cpp",
	"experimental/svg/model/SkSVGAttributeParser.cpp",
	"experimental/svg/model/SkSVGCircle.cpp",
	"experimental/svg/model/SkSVGContainer.cpp",
	"experimental/svg/model/SkSVGDOM.cpp",
	"experimental/svg/model/SkSVGEllipse.cpp",
	"experimental/svg/model/SkSVGLine.cpp",
	"experimental/svg/model/SkSVGNode.cpp",
	"experimental/svg/model/SkSVGPath.cpp",
	"experimental/svg/model/SkSVGPoly.cpp",
	"experimental/svg/model/SkSVGRect.cpp",
	"experimental/svg/model/SkSVGRenderContext.cpp",
	"experimental/svg/model/SkSVGSVG.cpp",
	"experimental/svg/model/SkSVGShape.cpp",
	"experimental/svg/model/SkSVGTransformableNode.cpp",
	"experimental/svg/model/SkSVGValue.cpp",
	]
	deps = [
	":skia",
	]
	}

	executable("dm") {
	sources = [
	"dm/DM.cpp",
	"dm/DMJsonWriter.cpp",
	"dm/DMSrcSink.cpp",
	]
	include_dirs = [ "tests" ]
	deps = [
	":experimental_svg_model",
	":flags",
	":gm",
	":gpu_tool_utils",
	":skia",
	":tests",
	":tool_utils",
	"//third_party/jsoncpp",
	"//third_party/libpng",
	]
	testonly = true
	}

	executable("monobench") {
	sources = [
	"tools/monobench.cpp",
	]
	deps = [
	":bench",
	":skia",
	]
	testonly = true
	}

	executable("nanobench") {
	sources = [
	"bench/nanobench.cpp",
	]
	deps = [
	":bench",
	":flags",
	":gm",
	":gpu_tool_utils",
	":skia",
	":tool_utils",
	"//third_party/jsoncpp",
	]
	testonly = true
	}

	if (current_cpu != "mipsel") { # Clang 3.8 crashes while compiling hb-icu.cc for mipsel.
	executable("sktexttopdf") {
	sources = [
	"tools/SkShaper_harfbuzz.cpp",
	"tools/using_skia_and_harfbuzz.cpp",
	]
	deps = [
	":skia",
	"//third_party/harfbuzz",
	]
	testonly = true
	}
	}
	}