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

import("gn/fuchsia_defines.gni")
import("gn/shared_sources.gni")
import("gn/skia.gni")
import("gn/toolchain/wasm.gni")

if (is_fuchsia) {
  import("//build/fuchsia/sdk.gni")
  import("build/fuchsia/fuchsia_download_sdk.gni")
}

if (skia_use_dawn) {
  import("//third_party/externals/dawn/scripts/dawn_features.gni")
}

if (defined(skia_settings)) {
  import(skia_settings)
}

import("gn/ios.gni")

# Skia public API, generally provided by :skia.
config("skia_public") {
  include_dirs = [ "." ]

  defines = [
    "SK_CODEC_DECODES_BMP",
    "SK_CODEC_DECODES_WBMP",
  ]
  cflags_objcc = []
  if (is_component_build) {
    defines += [ "SKIA_DLL" ]
  }
  if (is_fuchsia || is_linux) {
    defines += [ "SK_R32_SHIFT=16" ]
  }
  if (skia_enable_optimize_size) {
    defines += [ "SK_ENABLE_OPTIMIZE_SIZE" ]
  }
  if (skia_enable_precompile) {
    defines += [ "SK_ENABLE_PRECOMPILE" ]
  }
  if (is_fuchsia) {
    defines += fuchsia_defines
  }
  if (is_wasm) {
    defines += wasm_defines
  }
  if (skia_gl_standard == "gles") {
    defines += [ "SK_ASSUME_GL_ES=1" ]
  } else if (skia_gl_standard == "gl") {
    defines += [ "SK_ASSUME_GL=1" ]
  } else if (skia_gl_standard == "webgl") {
    defines += [ "SK_ASSUME_WEBGL=1" ]
  }
  if (skia_enable_ganesh) {
    defines += [ "SK_GANESH" ]
  }
  if (skia_enable_graphite) {
    defines += [ "SK_GRAPHITE" ]
  }
  if (skia_disable_tracing) {
    defines += [ "SK_DISABLE_TRACING" ]
  }
  if (skia_use_perfetto) {
    defines += [ "SK_USE_PERFETTO" ]
  }
  if (skia_use_safe_libcxx) {
    defines += [ "_LIBCPP_ENABLE_ASSERTIONS=1" ]
  }

  # Some older versions of the Clang toolchain change the visibility of
  # symbols decorated with API_AVAILABLE macro to be visible. Users of such
  # toolchains suppress the use of this macro till toolchain updates are made.
  if (is_mac || is_ios) {
    if (skia_enable_api_available_macro) {
      defines += [ "SK_ENABLE_API_AVAILABLE" ]
    } else {
      cflags_objcc += [ "-Wno-unguarded-availability" ]
    }
  }
}

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

  defines = [ "SK_GAMMA_APPLY_TO_A8" ]
  if (skia_use_fixed_gamma_text) {
    defines += [
      "SK_GAMMA_EXPONENT=1.4",
      "SK_GAMMA_CONTRAST=0.0",
    ]
  }
  if (is_skia_dev_build && !is_wasm) {
    defines += [
      "SK_ALLOW_STATIC_GLOBAL_INITIALIZERS=1",
      "GPU_TEST_UTILS=1",
    ]
  }
  libs = []
  lib_dirs = []
  if (skia_use_gl && skia_use_angle) {
    defines += [ "SK_ANGLE" ]
  }
  if (skia_use_vma) {
    defines += [ "SK_USE_VMA" ]
  }
  if (skia_enable_winuwp) {
    defines += [ "SK_WINUWP" ]
  }
  if (skia_print_sksl_shaders) {
    defines += [ "SK_PRINT_SKSL_SHADERS" ]
  }
  if (skia_print_native_shaders) {
    defines += [ "SK_PRINT_NATIVE_SHADERS" ]
  }

  # Temporary staging flag:
  defines += [ "SK_ENABLE_AVX512_OPTS" ]
}

# 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",
]

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

is_x86 = current_cpu == "x64" || current_cpu == "x86"
is_loong64 = current_cpu == "loong64"

opts("hsw") {
  enabled = is_x86
  sources = skia_opts.hsw_sources
  if (is_win) {
    cflags = [ "/arch:AVX2" ]
  } else {
    cflags = [ "-march=haswell" ]
  }
}

opts("skx") {
  enabled = is_x86
  sources = skia_opts.skx_sources
  if (is_win) {
    cflags = [ "/arch:AVX512" ]
  } else {
    cflags = [ "-march=skylake-avx512" ]
  }
}

opts("lasx") {
  enabled = is_loong64
  sources = skia_opts.lasx_sources
  cflags = [ "-mlasx" ]
}

# 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
      }
      if (defined(invoker.public_configs)) {
        configs = invoker.public_configs
      }
      if (defined(invoker.public_include_dirs)) {
        include_dirs = invoker.public_include_dirs
      }
    }
    skia_source_set(target_name) {
      visibility = [ ":*" ]
      check_includes = false
      configs = skia_library_configs

      # "*" clobbers the current scope; append to existing configs
      forward_variables_from(invoker,
                             "*",
                             [
                               "configs",
                               "public_defines",
                               "sources_for_tests",
                               "sources_when_disabled",
                             ])
      if (defined(invoker.configs)) {
        configs += invoker.configs
      }
      all_dependent_configs = [ ":" + target_name + "_public" ]
    }
    if (defined(invoker.sources_for_tests) && skia_enable_tools) {
      skia_source_set(target_name + "_tests") {
        visibility = [ ":*" ]
        check_includes = false
        configs = skia_library_configs

        # "*" clobbers the current scope; append to existing configs
        forward_variables_from(invoker,
                               "*",
                               [
                                 "configs",
                                 "public_defines",
                                 "sources",
                                 "sources_for_tests",
                                 "sources_when_disabled",
                               ])
        if (defined(invoker.configs)) {
          configs += invoker.configs
        }
        testonly = true
        sources = invoker.sources_for_tests
        if (!defined(deps)) {
          deps = []
        }
        deps += [ ":test" ]
        all_dependent_configs = [ ":" + target_name + "_public" ]
      }
    }
  } else {
    skia_source_set(target_name) {
      visibility = [ ":*" ]
      configs = skia_library_configs

      # "*" clobbers the current scope; append to existing configs
      forward_variables_from(invoker,
                             "*",
                             [
                               "configs",
                               "public",
                               "public_defines",
                               "public_deps",
                               "deps",
                               "libs",
                               "frameworks",
                               "sources",
                               "sources_for_tests",
                               "sources_when_disabled",
                             ])
      if (defined(invoker.configs)) {
        configs += invoker.configs
      }
      if (defined(invoker.sources_when_disabled)) {
        sources = invoker.sources_when_disabled
      }
    }
    if (defined(invoker.sources_for_tests)) {
      skia_source_set(target_name + "_tests") {
        visibility = [ ":*" ]
      }
    }
  }
}

optional("android_utils") {
  enabled = skia_enable_android_utils

  public = [
    "client_utils/android/BRDAllocator.h",
    "client_utils/android/BitmapRegionDecoder.h",
    "client_utils/android/FrontBufferedStream.h",
  ]
  public_defines = [ "SK_ENABLE_ANDROID_UTILS" ]
  sources = [
    "client_utils/android/BitmapRegionDecoder.cpp",
    "client_utils/android/FrontBufferedStream.cpp",
  ]
}

optional("fontmgr_android") {
  enabled = skia_enable_fontmgr_android

  deps = [
    ":typeface_freetype",
    "//third_party/expat",
  ]
  public_defines = [ "SK_FONTMGR_ANDROID_AVAILABLE" ]
  public = skia_ports_fontmgr_android_public
  sources = skia_ports_fontmgr_android_sources
  sources_for_tests = [ "tests/FontMgrAndroidParserTest.cpp" ]
}

# if building Skia for API >= 30 and not using custom fonts, enable
# skia_enable_fontmgr_android_ndk and disable skia_enable_fontmgr_android
optional("fontmgr_android_ndk") {
  enabled = skia_enable_fontmgr_android_ndk

  deps = [ ":typeface_freetype" ]
  libs = [ "android" ]
  public_defines = [ "SK_FONTMGR_ANDROID_NDK_AVAILABLE" ]
  public = skia_ports_fontmgr_android_ndk_public
  sources = skia_ports_fontmgr_android_ndk_sources
}

optional("fontmgr_custom") {
  enabled =
      skia_enable_fontmgr_custom_directory ||
      skia_enable_fontmgr_custom_embedded || skia_enable_fontmgr_custom_empty

  deps = [ ":typeface_freetype" ]
  sources = skia_ports_fontmgr_custom_sources
}

optional("fontmgr_custom_directory") {
  enabled = skia_enable_fontmgr_custom_directory
  public_defines = [ "SK_FONTMGR_FREETYPE_DIRECTORY_AVAILABLE" ]
  deps = [
    ":fontmgr_custom",
    ":typeface_freetype",
  ]
  public = skia_ports_fontmgr_directory_public
  sources = skia_ports_fontmgr_directory_sources
}

optional("fontmgr_custom_embedded") {
  enabled = skia_enable_fontmgr_custom_embedded
  public_defines = [ "SK_FONTMGR_FREETYPE_EMBEDDED_AVAILABLE" ]
  deps = [
    ":fontmgr_custom",
    ":typeface_freetype",
  ]
  public = skia_ports_fontmgr_embedded_public
  sources = skia_ports_fontmgr_embedded_sources
}

optional("fontmgr_custom_empty") {
  enabled = skia_enable_fontmgr_custom_empty
  public_defines = [ "SK_FONTMGR_FREETYPE_EMPTY_AVAILABLE" ]
  deps = [
    ":fontmgr_custom",
    ":typeface_freetype",
  ]
  public = skia_ports_fontmgr_empty_public
  sources = skia_ports_fontmgr_empty_sources
}

optional("fontmgr_fontconfig") {
  enabled = skia_enable_fontmgr_fontconfig
  public_defines = [ "SK_FONTMGR_FONTCONFIG_AVAILABLE" ]

  # The public header includes fontconfig.h and uses FcConfig*
  public_deps = [ "//third_party:fontconfig" ]
  public = skia_ports_fontmgr_fontconfig_public
  deps = [ ":typeface_freetype" ]
  sources = skia_ports_fontmgr_fontconfig_sources
  sources_for_tests = [ "tests/FontMgrFontConfigTest.cpp" ]
}

optional("fontmgr_FontConfigInterface") {
  enabled = skia_enable_fontmgr_FontConfigInterface

  deps = [
    ":typeface_freetype",
    "//third_party:fontconfig",
  ]
  public = skia_ports_fci_public
  sources = skia_ports_fci_sources
  sources_for_tests = [ "tests/FCITest.cpp" ]
}

optional("fontmgr_fontations_empty") {
  enabled = skia_use_fontations
  public_defines = [ "SK_FONTMGR_FONTATIONS_AVAILABLE" ]

  deps = [ ":typeface_fontations" ]
  public = skia_ports_fontmgr_fontations_public
  sources = skia_ports_fontmgr_fontations_sources
}

optional("fontmgr_fuchsia") {
  enabled = skia_enable_fontmgr_fuchsia
  public_defines = [ "SK_FONTMGR_FUCHSIA_AVAILABLE" ]
  deps = []

  if (is_fuchsia && using_fuchsia_sdk) {
    deps += [ "//build/fuchsia/fidl:fuchsia.fonts" ]
  } else {
    deps = [ "//sdk/fidl/fuchsia.fonts" ]
  }
  public = skia_ports_fontmgr_fuchsia_public
  sources = skia_ports_fontmgr_fuchsia_sources
}

optional("fontmgr_mac_ct") {
  enabled = skia_use_fonthost_mac

  public_defines = [
    "SK_TYPEFACE_FACTORY_CORETEXT",
    "SK_FONTMGR_CORETEXT_AVAILABLE",
  ]
  public = skia_ports_fontmgr_coretext_public
  sources = skia_ports_fontmgr_coretext_sources
  sources_for_tests = [ "tests/TypefaceMacTest.cpp" ]

  if (is_mac) {
    frameworks = [
      # AppKit symbols NSFontWeightXXX may be dlsym'ed.
      "AppKit.framework",
      "ApplicationServices.framework",
    ]
  }

  if (is_ios) {
    frameworks = [
      "CoreFoundation.framework",
      "CoreGraphics.framework",
      "CoreText.framework",

      # UIKit symbols UIFontWeightXXX may be dlsym'ed.
      "UIKit.framework",
    ]
  }
}

optional("fontmgr_win") {
  enabled = skia_enable_fontmgr_win

  public_defines = [
    "SK_TYPEFACE_FACTORY_DIRECTWRITE",
    "SK_FONTMGR_DIRECTWRITE_AVAILABLE",
  ]
  public = skia_ports_windows_fonts_public
  sources = skia_ports_windows_fonts_sources
  if (skia_dwritecore_sdk != "") {
    defines = [ "DWRITE_CORE" ]
    if (is_win && is_clang) {
      # Clang complains about these headers, so mark them as system. These
      # headers are hiding SDK headers of the same name, which are also
      # included as system headers, so these need to go first in the cflags
      # "includes" before the SDK. gn appends configs in the order listed,
      # so these flags will be first.
      cflags = [
        "-imsvc",
        "${skia_dwritecore_sdk}/include",
      ]
    } else {
      include_dirs = [ "${skia_dwritecore_sdk}/include" ]
    }
  }
}

optional("fontmgr_win_gdi") {
  enabled = skia_enable_fontmgr_win_gdi
  public_defines = [ "SK_FONTMGR_GDI_AVAILABLE" ]
  public = skia_ports_windows_fonts_public
  sources = skia_ports_fonthost_win_sources
  libs = [ "Gdi32.lib" ]
}

if (skia_lex) {
  skia_executable("sksllex") {
    sources = [
      "src/sksl/lex/DFA.h",
      "src/sksl/lex/DFAState.h",
      "src/sksl/lex/LexUtil.h",
      "src/sksl/lex/Main.cpp",
      "src/sksl/lex/NFA.cpp",
      "src/sksl/lex/NFA.h",
      "src/sksl/lex/NFAState.h",
      "src/sksl/lex/NFAtoDFA.h",
      "src/sksl/lex/RegexNode.cpp",
      "src/sksl/lex/RegexNode.h",
      "src/sksl/lex/RegexParser.cpp",
      "src/sksl/lex/RegexParser.h",
      "src/sksl/lex/TransitionTable.cpp",
      "src/sksl/lex/TransitionTable.h",
    ]
    include_dirs = [ "." ]
  }

  action("run_sksllex") {
    script = "gn/run_sksllex.py"
    deps = [ ":sksllex(//gn/toolchain:$host_toolchain)" ]
    sources = [ "src/sksl/lex/sksl.lex" ]

    # GN insists its outputs should go somewhere underneath target_out_dir, so we trick it with a
    # path that starts with target_out_dir and then uses ".." to back up into the src dir.
    outputs = [
      "$target_out_dir/" + rebase_path("src/sksl/SkSLLexer.h", target_out_dir),
      # the script also modifies the corresponding .cpp file, but if we tell GN that it gets
      # confused due to the same file being named by two different paths
    ]
    sksllex_path = "$root_out_dir/"
    sksllex_path += "sksllex"
    if (host_os == "win") {
      sksllex_path += ".exe"
    }
    args = [
      rebase_path(sksllex_path),
      rebase_path("bin/clang-format"),
      rebase_path("bin/fetch-clang-format"),
      rebase_path("src"),
    ]
  }
} else {
  group("run_sksllex") {
  }
}

if (skia_compile_modules || skia_compile_sksl_tests) {
  # Copy the module source files into the same directory as skslc.
  copy("sksl_modules") {
    sources = [
      "src/sksl/sksl_compute.sksl",
      "src/sksl/sksl_frag.sksl",
      "src/sksl/sksl_gpu.sksl",
      "src/sksl/sksl_graphite_frag.sksl",
      "src/sksl/sksl_graphite_frag_es2.sksl",
      "src/sksl/sksl_graphite_vert.sksl",
      "src/sksl/sksl_graphite_vert_es2.sksl",
      "src/sksl/sksl_public.sksl",
      "src/sksl/sksl_rt_shader.sksl",
      "src/sksl/sksl_shared.sksl",
      "src/sksl/sksl_vert.sksl",
    ]
    skslc_dir = "$root_out_dir/"
    if (host_toolchain != default_toolchain_name) {
      skslc_dir += "$host_toolchain/"
    }
    outputs = [ "$skslc_dir/{{source_file_part}}" ]
  }
}

if (skia_compile_modules) {
  # Generate the sksl-minify binary.
  skia_executable("sksl-minify") {
    defines = [
      "SKSL_STANDALONE",
      "SK_DISABLE_TRACING",
    ]
    sources = skslc_deps
    sources += [
      "tools/sksl-minify/SkSLMinify.cpp",
      "tools/skslc/ProcessWorklist.cpp",
      "tools/skslc/ProcessWorklist.h",
    ]
    libs = []
    if (is_win) {
      sources += [ "src/utils/SkGetExecutablePath_win.cpp" ]
    } else if (is_mac || is_ios) {
      sources += [ "src/utils/SkGetExecutablePath_mac.cpp" ]
    } else if (is_linux || is_android) {
      sources += [ "src/utils/SkGetExecutablePath_linux.cpp" ]
    }
    if (is_win) {
      sources += skia_ports_windows_sources
    } else {
      sources += [ "src/ports/SkOSFile_posix.cpp" ]
      libs += [ "dl" ]
    }
    sources += skia_sksl_core_sources
    sources += skia_sksl_codegen_sources
    include_dirs = [ "." ]
    deps = [ ":run_sksllex" ]
  }

  sksl_minify_path = "$root_out_dir/"
  if (host_toolchain != default_toolchain_name) {
    sksl_minify_path += "$host_toolchain/"
  }
  sksl_minify_path += "sksl-minify"
  if (host_os == "win") {
    sksl_minify_path += ".exe"
  }

  # Use minify_sksl.py to precompile all of the modules.
  minify_sksl_sources = get_target_outputs(":sksl_modules")

  minify_sksl_outputs = []
  foreach(src, minify_sksl_sources) {
    name = get_path_info(src, "name")

    # GN insists its outputs should go somewhere underneath target_out_dir, so we trick it with a
    # path that starts with target_out_dir and then uses ".." to back up into the src dir.
    minify_sksl_outputs += [ "$target_out_dir/" + rebase_path(
                                 "src/sksl/generated/$name.minified.sksl",
                                 target_out_dir) ]
    minify_sksl_outputs += [ "$target_out_dir/" + rebase_path(
                                 "src/sksl/generated/$name.unoptimized.sksl",
                                 target_out_dir) ]
  }

  action("minify_sksl") {
    script = "gn/minify_sksl.py"
    deps = [
      ":sksl-minify(//gn/toolchain:$host_toolchain)",
      ":sksl_modules",
    ]
    sources = minify_sksl_sources
    outputs = minify_sksl_outputs
    args = [
      rebase_path(sksl_minify_path),
      rebase_path("src/sksl/generated"),
    ]
    args += rebase_path(minify_sksl_sources)
  }

  if (skia_compile_sksl_tests) {
    # Minify our existing .rts files into golden minified outputs.
    import("gn/sksl_tests.gni")
    action("minify_sksl_tests") {
      script = "gn/minify_sksl_tests.py"
      deps = [
        ":sksl-minify(//gn/toolchain:$host_toolchain)",
        ":sksl_modules",
      ]
      sources = []
      outputs = []
      response_file_contents = []
      args = [
        # Comments match the variable names in minify_sksl_tests.py
        rebase_path(sksl_minify_path),  # sksl_minify
        rebase_path("src/sksl/sksl_shared.sksl"),  # shared_module
        rebase_path("src/sksl/sksl_public.sksl"),  # public_module
        rebase_path("src/sksl/sksl_rt_shader.sksl"),  # public_module
        rebase_path("resources"),  # input_root_dir
        rebase_path("tests"),  # output_root_dir
        "{{response_file_name}}",  # input_file
      ]

      testsDir = get_path_info("tests/sksl/", "abspath")
      resourcesDir = get_path_info("resources/sksl/", "abspath")

      foreach(partialPath, sksl_minify_tests_sources) {
        dst = testsDir + partialPath
        src = resourcesDir + partialPath

        dir = get_path_info(dst, "dir")
        name = get_path_info(dst, "name")
        ext = get_path_info(dst, "extension")
        if (ext == "rts" || ext == "privrts" || ext == "rtcf" || ext == "rtb" ||
            ext == "mfrag" || ext == "mvert") {
          response_file_contents += [ rebase_path(src) ]
          sources += [ src ]
          outputs += [ target_out_dir + "/" +
                       rebase_path(dir + "/" + name + ".minified.sksl",
                                   target_out_dir) ]
        }
      }
    }
  }
} else {
  group("minify_sksl") {
  }
  group("minify_sksl_tests") {
  }
}

# `Compile SkSL Tests` relies on skslc and the precompiled modules.
if (skia_compile_sksl_tests) {
  # Build skslc.
  skia_executable("skslc") {
    defines = [
      "SKSL_STANDALONE",
      "SK_DISABLE_TRACING",
      "SK_COMPILE_WITH_GN",
    ]
    sources = skslc_deps
    sources += [
      "tools/skslc/Main.cpp",
      "tools/skslc/ProcessWorklist.cpp",
      "tools/skslc/ProcessWorklist.h",
    ]
    libs = []
    if (is_win) {
      sources += [ "src/utils/SkGetExecutablePath_win.cpp" ]
    } else if (is_mac || is_ios) {
      sources += [ "src/utils/SkGetExecutablePath_mac.cpp" ]
    } else if (is_linux || is_android) {
      sources += [ "src/utils/SkGetExecutablePath_linux.cpp" ]
    }
    if (is_win) {
      sources += skia_ports_windows_sources
    } else {
      sources += [ "src/ports/SkOSFile_posix.cpp" ]
      libs += [ "dl" ]
    }
    sources += skia_sksl_codegen_sources
    sources += skia_sksl_core_sources
    sources += skia_sksl_hlsl_sources
    sources += skia_sksl_pipeline_sources
    sources += skia_sksl_tracing_sources
    sources += skia_sksl_validate_spirv_sources
    sources += skia_sksl_validate_wgsl_sources
    include_dirs = [ "." ]
    deps = [
      ":run_sksllex",
      "//third_party/externals/dawn/src/tint/api:api",
      "//third_party/externals/spirv-tools:spvtools",
      "//third_party/externals/spirv-tools:spvtools_val",
      "//third_party/spirv-cross:spirv_cross",
    ]
  }

  skslc_path = "$root_out_dir/"
  if (host_toolchain != default_toolchain_name) {
    skslc_path += "$host_toolchain/"
  }
  skslc_path += "skslc"
  if (host_os == "win") {
    skslc_path += ".exe"
  }

  # Build the test files using skslc.
  import("gn/sksl_tests.gni")
  template("compile_sksl") {
    # Compile the passed-in `sources` into `outputs` using skslc, with the given language/settings.
    action("compile_sksl_${target_name}") {
      script = "gn/compile_sksl_tests.py"
      deps = [
        ":sksl_modules",
        ":skslc(//gn/toolchain:$host_toolchain)",
      ]
      sources = []
      outputs = []
      response_file_contents = []
      args = [
        # Comments are the variable name in compile_sksl_tests.py
        rebase_path(skslc_path),  # skslc
        invoker.lang,  # lang
        invoker.settings,  # settings
        rebase_path("resources"),  # input_root_dir
        rebase_path("tests"),  # output_root_dir
        "{{response_file_name}}",  # input_file
      ]

      testsDir = get_path_info("tests/sksl/", "abspath")
      resourcesDir = get_path_info("resources/sksl/", "abspath")

      foreach(partialPath, invoker.sources) {
        dst = testsDir + partialPath
        src = resourcesDir + partialPath

        dir = get_path_info(dst, "dir")
        name = get_path_info(dst, "name")
        ext = get_path_info(dst, "extension")
        response_file_contents += [ rebase_path(src) ]
        sources += [ src ]

        foreach(outExtension, invoker.outExtensions) {
          # SPIR-V uses separate extensions for .vert and .compute shaders.
          if (ext == "vert" && outExtension == ".asm.frag") {
            outExtension = ".asm.vert"
          } else if (ext == "compute" && outExtension == ".asm.frag") {
            outExtension = ".asm.comp"
          }
          outputs +=
              [ target_out_dir + "/" +
                rebase_path(dir + "/" + name + outExtension, target_out_dir) ]
        }
      }
    }
  }
  compile_sksl("glsl_tests") {
    sources = sksl_glsl_tests_sources + sksl_glsl_settings_tests_sources
    outExtensions = [ ".glsl" ]
    lang = "--glsl"
    settings = "--settings"
  }
  compile_sksl("glsl_nosettings_tests") {
    sources = sksl_glsl_settings_tests_sources
    outExtensions = [ "StandaloneSettings.glsl" ]
    lang = "--glsl"
    settings = "--nosettings"
  }
  compile_sksl("metal_tests") {
    sources = sksl_metal_tests_sources
    outExtensions = [ ".metal" ]
    lang = "--metal"
    settings = "--settings"
  }
  compile_sksl("hlsl_tests") {
    sources = sksl_hlsl_tests_sources
    outExtensions = [ ".hlsl" ]
    lang = "--hlsl"
    settings = "--settings"
  }
  compile_sksl("skrp_tests") {
    sources = sksl_skrp_tests_sources
    outExtensions = [ ".skrp" ]
    lang = "--skrp"
    settings = "--settings"
  }
  compile_sksl("stage_tests") {
    sources = sksl_stage_tests_sources
    outExtensions = [ ".stage" ]
    lang = "--stage"
    settings = "--settings"
  }
  compile_sksl("spirv_tests") {
    sources = sksl_spirv_tests_sources
    outExtensions = [ ".asm.frag" ]
    lang = "--spirv"
    settings = "--settings"
  }
  compile_sksl("wgsl_tests") {
    sources = sksl_wgsl_tests_sources
    outExtensions = [ ".wgsl" ]
    lang = "--wgsl"
    settings = "--settings"
  }
} else {
  group("compile_sksl_glsl_tests") {
  }
  group("compile_sksl_glsl_nosettings_tests") {
  }
  group("compile_sksl_metal_tests") {
  }
  group("compile_sksl_hlsl_tests") {
  }
  group("compile_sksl_skrp_tests") {
  }
  group("compile_sksl_spirv_tests") {
  }
  group("compile_sksl_wgsl_tests") {
  }
}

group("compile_all_sksl_tests") {
  deps = [
    ":compile_sksl_glsl_nosettings_tests",
    ":compile_sksl_glsl_tests",
    ":compile_sksl_hlsl_tests",
    ":compile_sksl_metal_tests",
    ":compile_sksl_skrp_tests",
    ":compile_sksl_spirv_tests",
    ":compile_sksl_wgsl_tests",
  ]
}

optional("gpu_shared") {
  enabled = skia_enable_ganesh || skia_enable_graphite

  configs = []
  deps = []
  libs = []
  public_defines = []
  public_deps = []
  frameworks = []

  sources = skia_shared_gpu_sources
  sources += skia_sksl_pipeline_sources
  sources += skia_sksl_codegen_sources

  if (skia_use_dawn) {
    public_defines += [ "SK_DAWN" ]

    # When building for WASM, the WebGPU headers are provided by Emscripten. For native builds we
    # have to depend on Dawn directly.
    if (!skia_use_webgpu) {
      public_deps += [
        "//third_party/externals/dawn/include/dawn:cpp_headers",
        "//third_party/externals/dawn/src/dawn:cpp",
        "//third_party/externals/dawn/src/dawn:proc",
      ]

      if (dawn_enable_d3d12 || dawn_enable_d3d11 || dawn_enable_desktop_gl ||
          dawn_enable_metal || dawn_enable_opengles || dawn_enable_vulkan) {
        public_deps += [ "//third_party/externals/dawn/src/dawn/native" ]
      }
      if (dawn_enable_d3d12) {
        libs += [
          "d3d12.lib",
          "dxgi.lib",
          "d3dcompiler.lib",
        ]
      } else if (dawn_enable_metal) {
        frameworks += [ "Metal.framework" ]
      }
    }
  }

  if (skia_use_direct3d) {
    sources += skia_sksl_hlsl_sources
    deps += [ "//third_party/spirv-cross:spirv_cross" ]
  }

  if (skia_use_vulkan) {
    public_defines += [ "SK_VULKAN" ]
    sources += skia_shared_vk_sources
    configs += [ ":use_skia_vulkan_headers" ]
    if (skia_enable_vulkan_debug_layers) {
      public_defines += [ "SK_ENABLE_VK_LAYERS" ]
    }
    if (skia_use_vma) {
      sources += skia_vma_sources
      public_deps += [ "src/gpu/vk/vulkanmemoryallocator" ]
    }
  }

  if (skia_use_metal) {
    public_defines += [ "SK_METAL" ]
    sources += skia_shared_mtl_sources
  }

  if (is_android) {
    sources += skia_shared_android_sources
  }
}

optional("gpu") {
  enabled = skia_enable_ganesh
  deps = [
    ":gpu_shared",
    ":minify_sksl",
    ":run_sksllex",
  ]
  if (skia_generate_workarounds) {
    deps += [ ":workaround_list" ]
  }
  configs = []
  public_defines = []
  public_configs = []
  public_deps = []

  public = skia_gpu_public
  sources = skia_ganesh_private

  libs = []
  frameworks = []

  if (is_android) {
    sources += skia_gpu_android_private

    # this lib is required to link against AHardwareBuffer
    if (defined(ndk_api) && ndk_api >= 26) {
      libs += [ "android" ]
    }
  }

  if (skia_use_gl) {
    public_defines += [ "SK_GL" ]
    if (is_android) {
      sources += [
        "src/gpu/ganesh/gl/egl/GrGLMakeEGLInterface.cpp",
        "src/gpu/ganesh/gl/egl/GrGLMakeNativeInterface_egl.cpp",
      ]
      sources += skia_android_gl_sources

      # this lib is required to link against AHardwareBuffer
      if (defined(ndk_api) && ndk_api >= 26) {
        libs += [ "android" ]
      }
    } else if (skia_use_egl) {
      if (skia_use_epoxy_egl) {
        sources += [ "src/gpu/ganesh/gl/epoxy/GrGLMakeEpoxyEGLInterface.cpp" ]
        libs += [ "epoxy" ]
      } else {
        sources += [
          "src/gpu/ganesh/gl/egl/GrGLMakeEGLInterface.cpp",
          "src/gpu/ganesh/gl/egl/GrGLMakeNativeInterface_egl.cpp",
        ]
        libs += [ "EGL" ]
      }
    } else if (skia_use_webgl) {
      sources += [ "src/gpu/ganesh/gl/webgl/GrGLMakeNativeInterface_webgl.cpp" ]
    } else if (is_linux && skia_use_x11) {
      sources += [
        "src/gpu/ganesh/gl/glx/GrGLMakeGLXInterface.cpp",
        "src/gpu/ganesh/gl/glx/GrGLMakeNativeInterface_glx.cpp",
      ]
      libs += [ "GL" ]
    } else if (is_mac) {
      sources += [ "src/gpu/ganesh/gl/mac/GrGLMakeNativeInterface_mac.cpp" ]
    } else if (is_ios) {
      sources += [ "src/gpu/ganesh/gl/iOS/GrGLMakeNativeInterface_iOS.cpp" ]
    } else if (is_win && !skia_enable_winuwp) {
      sources += [
        "src/gpu/ganesh/gl/win/GrGLMakeNativeInterface_win.cpp",
        "src/gpu/ganesh/gl/win/GrGLMakeWinInterface.cpp",
      ]
      if (target_cpu != "arm64") {
        libs += [ "OpenGL32.lib" ]
      }
    } else {
      sources += [ "src/gpu/ganesh/gl/GrGLMakeNativeInterface_none.cpp" ]
    }
    public += skia_gpu_gl_public
    sources += skia_gpu_gl_private
  }

  if (skia_use_vulkan) {
    public += skia_gpu_vk_public
    sources += skia_gpu_vk_private
    configs += [ ":use_skia_vulkan_headers" ]
    if (is_fuchsia) {
      if (using_fuchsia_sdk) {
        public_deps += [ "$fuchsia_sdk_root/pkg:vulkan" ]
      } else {
        public_deps += [ "//src/graphics/lib/vulkan" ]
      }
    }
    if (is_android) {
      sources += skia_gpu_vk_android_private
    }
  }

  if (skia_use_direct3d) {
    public_defines += [ "SK_DIRECT3D" ]
    deps += [ "//third_party/d3d12allocator" ]
    sources += skia_direct3d_sources
    if (skia_enable_direct3d_debug_layer) {
      public_defines += [ "SK_ENABLE_D3D_DEBUG_LAYER" ]
    }
    libs += [
      "d3d12.lib",
      "dxgi.lib",
      "d3dcompiler.lib",
    ]
  }

  cflags_objcc = []
  if (skia_use_metal) {
    public_defines += [ "SK_METAL" ]
    public += skia_gpu_metal_public
    sources += skia_gpu_metal_private
    sources += skia_gpu_metal_cpp
    if (skia_enable_metal_debug_info) {
      public_defines += [ "SK_ENABLE_MTL_DEBUG_INFO" ]
    }
    frameworks += [ "Metal.framework" ]
    frameworks += [ "Foundation.framework" ]
    if (is_ios) {
      frameworks += [ "UIKit.framework" ]
    }
    cflags_objcc += [ "-fobjc-arc" ]
  }

  if (is_debug || skia_build_for_debugger) {
    public_defines += [ "SK_ENABLE_DUMP_GPU" ]
  }
}

optional("vello") {
  enabled = skia_enable_vello_shaders
  public_defines = [ "SK_ENABLE_VELLO_SHADERS" ]
  public_deps = [ "//third_party/vello" ]
}

optional("heif") {
  enabled = skia_use_libheif
  public_defines = [ "SK_HAS_HEIF_LIBRARY" ]

  # This HEIF decoding functionality is a part of the Android Framework.
  # https://android.googlesource.com/platform/frameworks/av/+/master/media/libheif/include/HeifDecoderAPI.h
  # There isn't a way to compile that library outside of it, so we just link against
  # the library. This feature is not supported on other platforms (and we haven't
  # yet tried something like https://github.com/strukturag/libheif/tree/master/libheif).
  # The dependency for Android is set in gn_to_bp.py.
  deps = []

  sources = [ "src/codec/SkHeifCodec.cpp" ]
}

optional("avif") {
  enabled = skia_use_libavif
  public_defines = [ "SK_CODEC_DECODES_AVIF" ]

  deps = [ "//third_party/libavif" ]

  sources = [ "src/codec/SkAvifCodec.cpp" ]
}

optional("jpeg_mpf") {
  enabled = skia_use_jpeg_gainmaps &&
            (skia_use_libjpeg_turbo_encode || skia_use_libjpeg_turbo_decode)
  sources = [
    "src/codec/SkJpegMultiPicture.cpp",
    "src/codec/SkJpegSegmentScan.cpp",
  ]
}

optional("jpeg_decode") {
  enabled = skia_use_libjpeg_turbo_decode
  public_defines = [ "SK_CODEC_DECODES_JPEG" ]

  deps = [ "//third_party/libjpeg-turbo:libjpeg" ]
  sources = [
    "src/codec/SkJpegCodec.cpp",
    "src/codec/SkJpegDecoderMgr.cpp",
    "src/codec/SkJpegMetadataDecoderImpl.cpp",
    "src/codec/SkJpegSourceMgr.cpp",
    "src/codec/SkJpegUtility.cpp",
  ]
  if (skia_use_jpeg_gainmaps) {
    # Theoretically this doesn't need to be public, but this allows gn_to_bp.py to see it, and seems
    # to align with other codec support. See b/265939413
    public_defines += [ "SK_CODEC_DECODES_JPEG_GAINMAPS" ]
    deps += [
      ":jpeg_mpf",
      ":xml",
    ]
    sources += skia_codec_jpeg_xmp
  }
}

optional("jpeg_encode") {
  enabled = skia_use_libjpeg_turbo_encode && !skia_use_ndk_images

  deps = [ "//third_party/libjpeg-turbo:libjpeg" ]
  public = skia_encode_jpeg_public
  sources = skia_encode_jpeg_srcs

  if (skia_use_jpeg_gainmaps) {
    deps += [ ":jpeg_mpf" ]
    sources += [ "src/encode/SkJpegGainmapEncoder.cpp" ]
  }
}

optional("jpegxl_decode") {
  enabled = skia_use_libjxl_decode
  public_defines = [ "SK_CODEC_DECODES_JPEGXL" ]

  deps = [ "//third_party/libjxl" ]
  sources = [ "src/codec/SkJpegxlCodec.cpp" ]
}

optional("ndk_images") {
  enabled = skia_use_ndk_images
  public_defines = [ "SK_ENABLE_NDK_IMAGES" ]
  sources = [
    "src/ports/SkImageEncoder_NDK.cpp",
    "src/ports/SkImageGeneratorNDK.cpp",
    "src/ports/SkNDKConversions.cpp",
  ]
  libs = [ "jnigraphics" ]
}

optional("graphite") {
  configs = []
  libs = []
  frameworks = []
  public_defines = []

  enabled = skia_enable_graphite
  deps = [
    ":gpu_shared",
    ":vello",
  ]
  public = skia_graphite_public
  sources = skia_graphite_sources
  sources += skia_sksl_graphite_modules_sources

  if (is_android) {
    sources += skia_graphite_android_private
  }

  if (skia_enable_vello_shaders) {
    sources += skia_graphite_vello_sources
  }

  if (skia_use_dawn) {
    public += skia_graphite_dawn_public
    sources += skia_graphite_dawn_sources
  }
  if (skia_use_metal) {
    public_defines += [ "SK_METAL" ]
    public += skia_graphite_mtl_public
    sources += skia_graphite_mtl_sources
    if (skia_enable_metal_debug_info) {
      public_defines += [ "SK_ENABLE_MTL_DEBUG_INFO" ]
    }
    frameworks += [ "Metal.framework" ]
    frameworks += [ "Foundation.framework" ]
    if (is_ios) {
      frameworks += [ "UIKit.framework" ]
    }
  }
  if (skia_use_vulkan) {
    public += skia_graphite_vk_public
    sources += skia_graphite_vk_sources
    configs += [ ":use_skia_vulkan_headers" ]
  }
  if (skia_enable_precompile) {
    public += skia_graphite_precompile_public
    sources += skia_graphite_precompile_sources
  }
}

optional("pdf") {
  enabled = skia_use_zlib && skia_enable_pdf && skia_use_libjpeg_turbo_decode &&
            skia_use_libjpeg_turbo_encode
  public_defines = [ "SK_SUPPORT_PDF" ]

  deps = [ "//third_party/zlib" ]
  public = skia_pdf_public
  sources = skia_pdf_sources
  sources_when_disabled = [ "src/pdf/SkDocument_PDF_None.cpp" ]
  if (skia_pdf_subset_harfbuzz) {
    deps += [ "//third_party/harfbuzz" ]
    defines = [ "SK_PDF_USE_HARFBUZZ_SUBSET" ]
  }
  deps += [
    ":jpeg_decode",
    ":jpeg_encode",
  ]
}

optional("xps") {
  enabled = skia_use_xps && is_win
  public_defines = [ "SK_SUPPORT_XPS" ]
  public = skia_xps_public
  sources = skia_xps_sources
}

optional("png_decode") {
  enabled = skia_use_libpng_decode
  public_defines = [
    "SK_CODEC_DECODES_ICO",
    "SK_CODEC_DECODES_PNG",
  ]

  deps = [ "//third_party/libpng" ]
  sources = [ "src/codec/SkIcoCodec.cpp" ] + skia_codec_png
}

optional("png_encode") {
  enabled = skia_use_libpng_encode && !skia_use_ndk_images
  public = skia_encode_png_public

  deps = [ "//third_party/libpng" ]
  sources = skia_encode_png_srcs
}

optional("raw") {
  enabled = skia_use_dng_sdk && skia_use_libjpeg_turbo_decode && skia_use_piex
  public_defines = [ "SK_CODEC_DECODES_RAW" ]

  deps = [
    "//third_party/dng_sdk",
    "//third_party/libjpeg-turbo:libjpeg",
    "//third_party/piex",
  ]

  # SkRawCodec catches any exceptions thrown by dng_sdk, insulating the rest of
  # Skia.
  configs = [ "gn/portable:add_exceptions" ]

  sources = [ "src/codec/SkRawCodec.cpp" ]
}

optional("typeface_freetype") {
  enabled = skia_use_freetype

  public_defines = [ "SK_TYPEFACE_FACTORY_FREETYPE" ]
  deps = [ "//third_party/freetype2" ]
  sources = skia_ports_freetype_sources
}

if (skia_use_fontations) {
  action("fontations_rust_side") {
    bazel_args = []
    if (is_mac && target_cpu == "arm64") {
      # TODO: Normally the target toolchain would be specified with `--platforms` but that doesn't
      # work. When building and running on an arm64 mac, setting `--host_platform` seems to do the
      # right thing but may not be the right build configuration in the long run.
      bazel_args += [ "--host_platform=//bazel/platform:mac_arm64_hermetic" ]
    }
    if (is_debug) {
      bazel_args += [ "--compilation_mode=dbg" ]
    } else {
      bazel_args += [ "--compilation_mode=opt" ]
    }
    script = "gn/bazel_build.py"
    sources = [
      "src/ports/fontations/BUILD.bazel",
      "src/ports/fontations/src/ffi.rs",
    ]
    outputs = [ "$root_out_dir/libbridge_rust_side.a" ]
    args =
        [
          "//src/ports/fontations:bridge_rust_side",
          rebase_path("//bazel-bin/src/ports/fontations/libbridge_rust_side.a",
                      root_build_dir),
        ] + bazel_args
  }

  action("fontations_ffi") {
    bazel_args = []
    if (is_mac && target_cpu == "arm64") {
      # TODO: Normally the target toolchain would be specified with `--platforms` but that doesn't
      # work. When building and running on an arm64 mac, setting `--host_platform` seems to do the
      # right thing but may not be the right build configuration in the long run.
      bazel_args += [ "--host_platform=//bazel/platform:mac_arm64_hermetic" ]
    }
    if (is_debug) {
      bazel_args += [ "--compilation_mode=dbg" ]
    } else {
      bazel_args += [ "--compilation_mode=opt" ]
    }
    script = "gn/bazel_build.py"
    sources = [
      "src/ports/fontations/BUILD.bazel",
      "src/ports/fontations/src/ffi.rs",
    ]
    outputs = [
      "$root_out_dir/libfontations_ffi.a",
      "$root_out_dir/src/ports/fontations/src/ffi.rs.h",
    ]
    args = [
             "//src/ports/fontations:fontations_ffi",
             rebase_path("//bazel-bin/src/ports/fontations/libfontations_ffi.a",
                         root_build_dir),

             # we want the header to not simply be copied into the output directory,
             # but in the same path as the Bazel build uses.
             rebase_path("//bazel-bin/src/ports/fontations/src/ffi.rs.h",
                         root_build_dir) + "=src/ports/fontations/src/ffi.rs.h",
           ] + bazel_args
  }
}

optional("typeface_fontations") {
  public_defines = [ "SK_TYPEFACE_FACTORY_FONTATIONS" ]
  enabled = skia_use_fontations
  if (enabled) {
    # this is where src/ports/fontations/src/ffi.rs.h was generated and exists.
    public_include_dirs = [ "$root_out_dir" ]
  }

  deps = [
    ":fontations_ffi",
    ":fontations_rust_side",
  ]

  libs = [
    "$root_out_dir/libfontations_ffi.a",
    "$root_out_dir/libbridge_rust_side.a",
  ]
  sources = skia_ports_typeface_fontations_sources + [
              "src/ports/SkFontScanner_fontations.cpp",
              "src/ports/SkFontScanner_fontations.h",
            ]

  sources_for_tests = [
    "tests/FontationsTest.cpp",
    "tests/FontationsFtCompTest.cpp",
  ]
}

optional("webp_decode") {
  enabled = skia_use_libwebp_decode
  public_defines = [ "SK_CODEC_DECODES_WEBP" ]

  deps = [ "//third_party/libwebp" ]
  sources = [ "src/codec/SkWebpCodec.cpp" ]
}

optional("webp_encode") {
  enabled = skia_use_libwebp_encode && !skia_use_ndk_images
  public = skia_encode_webp_public

  deps = [ "//third_party/libwebp" ]
  sources = skia_encode_webp_srcs
}

optional("wuffs") {
  enabled = skia_use_wuffs
  public_defines = [
    "SK_HAS_WUFFS_LIBRARY",
    "SK_CODEC_DECODES_GIF",
  ]

  deps = [ "//third_party/wuffs" ]
  sources = [ "src/codec/SkWuffsCodec.cpp" ]
}

optional("xml") {
  enabled = skia_use_expat || skia_use_jpeg_gainmaps
  public_defines = [ "SK_XML" ]

  deps = [ "//third_party/expat" ]
  sources = skia_xml_sources + skia_codec_xmp + [
              "src/svg/SkSVGCanvas.cpp",
              "src/svg/SkSVGDevice.cpp",
            ]
}

if (skia_enable_ganesh && skia_generate_workarounds) {
  action("workaround_list") {
    script = "tools/build_workaround_header.py"

    inputs = [ "src/gpu/gpu_workaround_list.txt" ]

    # GN insists its outputs should go somewhere underneath root_out_dir, so we trick it with a
    # path that starts with root_out_dir and then uses ".." to back up into the src dir.
    output_file =
        rebase_path("include/gpu/ganesh/GrDriverBugWorkaroundsAutogen.h",
                    root_out_dir)

    outputs = [ "$root_out_dir/$output_file" ]
    args = [
      "--output-file",
      "$output_file",
    ]

    foreach(file, inputs) {
      args += [ rebase_path(file, root_build_dir) ]
    }
  }
}

import("gn/codec.gni")

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

  public_deps = [
    ":fontmgr_FontConfigInterface",
    ":fontmgr_android",
    ":fontmgr_android_ndk",
    ":fontmgr_custom_directory",
    ":fontmgr_custom_embedded",
    ":fontmgr_custom_empty",
    ":fontmgr_fontations_empty",
    ":fontmgr_fontconfig",
    ":fontmgr_fuchsia",
    ":fontmgr_mac_ct",
    ":fontmgr_win",
    ":fontmgr_win_gdi",
    ":gpu",
    ":graphite",
    ":jpeg_encode",
    ":pdf",
    ":png_encode",
    ":webp_encode",
    ":xps",
  ]

  deps = [
    ":android_utils",
    ":avif",
    ":heif",
    ":hsw",
    ":jpeg_decode",
    ":jpegxl_decode",
    ":lasx",
    ":minify_sksl",
    ":ndk_images",
    ":png_decode",
    ":raw",
    ":skx",
    ":typeface_fontations",
    ":vello",
    ":webp_decode",
    ":wuffs",
    ":xml",
    "modules/skcms",
  ]

  public = skia_core_public
  public += skia_codec_public
  public += skia_utils_public
  public += skia_effects_public
  public += skia_effects_imagefilter_public

  sources = []
  sources += skia_core_sources
  sources += skia_utils_private
  sources += skia_utils_chromium
  sources += skia_effects_sources
  sources += skia_colorfilters_sources
  sources += skia_effects_imagefilter_sources
  sources += skia_codec_shared
  sources += skia_codec_decode_bmp
  sources += skia_encode_srcs
  sources += skia_sksl_core_sources
  sources += skia_sksl_core_module_sources
  sources += skia_sksl_tracing_sources
  sources += skia_ports_sources
  sources += [
    "src/android/SkAndroidFrameworkUtils.cpp",
    "src/android/SkAnimatedImage.cpp",
    "src/codec/SkAndroidCodec.cpp",
    "src/codec/SkAndroidCodecAdapter.cpp",
    "src/codec/SkSampledCodec.cpp",
    "src/ports/SkDiscardableMemory_none.cpp",
    "src/ports/SkMemory_malloc.cpp",
    "src/sfnt/SkOTTable_name.cpp",
    "src/sfnt/SkOTUtils.cpp",
  ]

  defines = []
  libs = []

  if (skia_build_for_debugger) {
    defines += [ "SK_BUILD_FOR_DEBUGGER" ]
  }

  if (skia_use_no_jpeg_encode) {
    sources += skia_no_encode_jpeg_srcs
  }
  if (skia_use_no_png_encode) {
    sources += skia_no_encode_png_srcs
  }
  if (skia_use_no_webp_encode) {
    sources += skia_no_encode_webp_srcs
  }

  if (is_win) {
    sources += skia_ports_windows_sources + [
                 "src/ports/SkDebug_win.cpp",
                 "src/ports/SkImageGeneratorWIC.cpp",
               ]
    libs += [
      "Ole32.lib",
      "OleAut32.lib",
    ]

    if (!skia_enable_winuwp) {
      libs += [
        "FontSub.lib",
        "User32.lib",
        "Usp10.lib",
      ]
    }
  } else {
    sources += [ "src/ports/SkOSFile_posix.cpp" ]
    if (is_ios) {
      sources += [ "src/ports/SkOSFile_ios.h" ]
    }
    libs += [ "dl" ]
  }

  if (is_android) {
    deps += [ "//third_party/expat" ]
    if (defined(ndk) && ndk != "") {
      deps += [ "//third_party/cpu-features" ]
    }
    sources += [ "src/ports/SkDebug_android.cpp" ]
    libs += [
      "EGL",
      "GLESv2",
      "log",
    ]
  }

  if (is_linux || is_wasm) {
    sources += [ "src/ports/SkDebug_stdio.cpp" ]
    if (skia_use_egl) {
      libs += [ "GLESv2" ]
    }
  }

  if (is_mac) {
    public += [ "include/ports/SkCFObject.h" ]
    sources += [
      "src/ports/SkDebug_stdio.cpp",
      "src/ports/SkImageGeneratorCG.cpp",
    ]
    frameworks = [
      "ApplicationServices.framework",
      "OpenGL.framework",
    ]
  }

  if (is_ios) {
    public += [ "include/ports/SkCFObject.h" ]
    sources += [
      "src/ports/SkDebug_stdio.cpp",
      "src/ports/SkImageGeneratorCG.cpp",
    ]
    frameworks = [
      "CoreFoundation.framework",
      "ImageIO.framework",
      "MobileCoreServices.framework",
    ]
  }

  if (is_fuchsia) {
    sources += [ "src/ports/SkDebug_stdio.cpp" ]
  }

  if (skia_enable_spirv_validation) {
    deps += [ "//third_party/externals/spirv-tools:spvtools_val" ]
    defines += [ "SK_ENABLE_SPIRV_VALIDATION" ]
  }

  if (skia_include_multiframe_procs) {
    sources += [ "tools/SkSharingProc.cpp" ]
  }

  # Overrides TRACE_EVENT0..2 macros (etc) to map to Perfetto's tracing macros.
  # Currently only supported in Android framework.
  if (skia_android_framework_use_perfetto) {
    defines += [ "SK_ANDROID_FRAMEWORK_USE_PERFETTO" ]
    sources += [ "src/android/SkAndroidFrameworkPerfettoStaticStorage.cpp" ]
  }

  if (!skia_enable_ganesh && !skia_enable_graphite) {
    sources += skia_no_slug_srcs
  }
}

# DebugCanvas used in experimental/wasm-skp-debugger
if (is_wasm) {
  skia_static_library("debugcanvas") {
    public_configs = [ ":skia_public" ]

    sources = [
      "tools/SkSharingProc.cpp",
      "tools/UrlDataManager.cpp",
      "tools/debugger/DebugCanvas.cpp",
      "tools/debugger/DebugLayerManager.cpp",
      "tools/debugger/DrawCommand.cpp",
      "tools/debugger/JsonWriteBuffer.cpp",
    ]
  }
}

skia_static_library("pathkit") {
  check_includes = false
  public_configs = [ ":skia_public" ]
  configs = skia_library_configs

  deps = [ ":hsw" ]

  sources = []
  sources += skia_pathops_sources
  sources += skia_pathops_public
  sources += [
    "src/base/SkArenaAlloc.cpp",
    "src/base/SkBezierCurves.cpp",
    "src/base/SkContainers.cpp",
    "src/base/SkCubics.cpp",
    "src/base/SkFloatingPoint.cpp",
    "src/base/SkMalloc.cpp",
    "src/base/SkMathPriv.cpp",
    "src/base/SkQuads.cpp",
    "src/base/SkSafeMath.cpp",
    "src/base/SkSemaphore.cpp",
    "src/base/SkTDArray.cpp",
    "src/base/SkThreadID.cpp",
    "src/base/SkUTF.cpp",
    "src/base/SkUtils.cpp",
    "src/core/SkAnalyticEdge.cpp",
    "src/core/SkContourMeasure.cpp",
    "src/core/SkCubicMap.cpp",
    "src/core/SkEdge.cpp",
    "src/core/SkEdgeBuilder.cpp",
    "src/core/SkEdgeClipper.cpp",
    "src/core/SkGeometry.cpp",
    "src/core/SkIDChangeListener.cpp",
    "src/core/SkLineClipper.cpp",
    "src/core/SkMallocPixelRef.cpp",
    "src/core/SkMatrix.cpp",
    "src/core/SkOpts.cpp",
    "src/core/SkPaint.cpp",
    "src/core/SkPaintPriv.cpp",
    "src/core/SkPath.cpp",
    "src/core/SkPathBuilder.cpp",
    "src/core/SkPathEffect.cpp",
    "src/core/SkPathMeasure.cpp",
    "src/core/SkPathRef.cpp",
    "src/core/SkPathUtils.cpp",
    "src/core/SkPoint.cpp",
    "src/core/SkRRect.cpp",
    "src/core/SkReadBuffer.cpp",
    "src/core/SkRect.cpp",
    "src/core/SkStream.cpp",
    "src/core/SkString.cpp",
    "src/core/SkStringUtils.cpp",
    "src/core/SkStroke.cpp",
    "src/core/SkStrokeRec.cpp",
    "src/core/SkStrokerPriv.cpp",
    "src/effects/SkDashPathEffect.cpp",
    "src/effects/SkTrimPathEffect.cpp",
    "src/ports/SkDebug_stdio.cpp",
    "src/ports/SkMemory_malloc.cpp",
    "src/utils/SkDashPath.cpp",
    "src/utils/SkParse.cpp",
    "src/utils/SkParsePath.cpp",
  ]
}

group("modules") {
  deps = [
    "modules/bentleyottmann",
    "modules/skottie",
    "modules/skparagraph",
    "modules/skshaper",
    "modules/svg",
  ]

  if (is_wasm) {
    deps += [ "modules/canvaskit" ]
  }
}

config("use_skia_vulkan_headers") {
  include_dirs = [ "include/third_party/vulkan" ]
  defines = [ "SK_USE_INTERNAL_VULKAN_HEADERS" ]
}

config("vulkan_memory_allocator") {
  include_dirs = [ "$skia_vulkan_memory_allocator_dir/include" ]
}

# Targets guarded by skia_enable_tools may use //third_party freely.
if (skia_enable_tools) {
  skia_public_includes = [
    "client_utils/android",
    "include/android",
    "include/codec",
    "include/config",
    "include/core",
    "include/docs",
    "include/effects",
    "include/encode",
    "include/gpu",
    "include/pathops",
    "include/ports",
    "include/svg",
    "include/utils",
    "include/utils/mac",
    "modules/skottie/include",
    "modules/skparagraph/include",
    "modules/skshaper/include",
    "modules/svg/include",
  ]

  # Used by gn_to_bp.py to list our public include dirs.
  skia_source_set("public") {
    configs = [ ":skia_public" ]
    include_dirs = skia_public_includes
  }

  config("skia.h_config") {
    include_dirs = [ "$target_gen_dir" ]
  }
  action("skia.h") {
    public_configs = [ ":skia.h_config" ]
    skia_h = "$target_gen_dir/skia.h"
    script = "gn/find_headers.py"

    args = [ rebase_path("//bin/gn") ] + [ rebase_path("//") ] +
           [ rebase_path(skia_h, root_build_dir) ] +
           rebase_path(skia_public_includes)
    depfile = "$skia_h.deps"
    outputs = [ skia_h ]
  }

  if (is_linux && target_cpu == "x64") {
    skia_executable("fiddle") {
      check_includes = false
      libs = []
      sources = [
        "tools/fiddle/draw.cpp",
        "tools/fiddle/fiddle_main.cpp",
      ]

      if (skia_use_egl) {
        sources += [ "tools/fiddle/egl_context.cpp" ]
      } else {
        sources += [ "tools/fiddle/null_context.cpp" ]
      }
      testonly = true
      deps = [
        ":flags",
        ":gpu_tool_utils",
        ":skia",
        ":skia.h",
        "modules/skottie",
        "modules/skparagraph",
        "modules/skshaper",
        "modules/svg",
      ]
    }
  }

  config("cpp17") {
    if (is_win) {
      cflags_cc = [ "/std:c++17" ]
    } else {
      cflags_cc = [ "-std=c++17" ]
    }
  }

  skia_source_set("public_headers_warnings_check") {
    sources = [ "tools/public_headers_warnings_check.cpp" ]
    configs = [
      ":use_skia_vulkan_headers",
      ":cpp17",
    ]
    if (defined(skia_header_target_default_configs)) {
      configs += skia_header_target_default_configs
    }
    deps = [
      ":skia",
      ":skia.h",
      "modules/skottie",
      "modules/skshaper",
    ]

    if (skia_use_dawn) {
      deps += [ "//third_party/externals/dawn/include/dawn:headers" ]
    }
  }

  template("test_lib") {
    config(target_name + "_config") {
      if (defined(invoker.public_defines)) {
        defines = invoker.public_defines
      }
    }
    skia_source_set(target_name) {
      forward_variables_from(invoker, "*", [])
      check_includes = false
      public_configs = [
        ":" + target_name + "_config",
        ":skia_private",
      ]

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

  template("test_app") {
    if (is_ios) {
      ios_app_bundle(target_name) {
        forward_variables_from(invoker,
                               "*",
                               [
                                 "output_name",
                                 "visibility",
                                 "is_shared_library",
                               ])
        testonly = true
        extra_configs = [ ":skia_private" ]
        launchscreen = "platform_tools/ios/app/LaunchScreen.storyboard"
        data_sources = [ "resources" ]
        if ("True" == exec_script("//gn/checkdir.py",
                                  [ rebase_path("skps", root_build_dir) ],
                                  "trim string")) {
          data_sources += [ "skps" ]
        }
        if ("True" == exec_script("//gn/checkdir.py",
                                  [ rebase_path("mskps", root_build_dir) ],
                                  "trim string")) {
          data_sources += [ "mskps" ]
        }
      }
    } else {
      # !is_ios

      if (defined(invoker.is_shared_library) && invoker.is_shared_library) {
        skia_shared_library("lib" + target_name) {
          output_dir = root_build_dir
          forward_variables_from(invoker, "*", [ "is_shared_library" ])
          if (!defined(configs)) {
            configs = []
          }
          configs += [ ":skia_private" ]
          testonly = true
        }
      } else {
        _executable = target_name
        skia_executable(_executable) {
          check_includes = false
          output_dir = root_build_dir
          forward_variables_from(invoker, "*", [ "is_shared_library" ])
          if (!defined(configs)) {
            configs = []
          }
          configs += [ ":skia_private" ]
          testonly = true
        }
      }
      if (is_android && skia_android_serial != "" && defined(_executable)) {
        action("push_" + target_name) {
          output_dir = root_build_dir
          script = "gn/push_to_android.py"
          deps = [ ":" + _executable ]
          _stamp = "$target_gen_dir/$_executable.pushed_$skia_android_serial"
          outputs = [ _stamp ]
          args = [
            rebase_path("$root_build_dir/$_executable"),
            skia_android_serial,
            rebase_path(_stamp),
          ]
          testonly = true
        }
      }
    }
  }

  test_lib("load_dynamic_library") {
    configs = [ ":skia_private" ]
    deps = [ ":skia" ]
    sources = [ "tools/library/LoadDynamicLibrary.h" ]
    if (is_win) {
      sources += [ "tools/library/LoadDynamicLibrary_win.cpp" ]
    } else {
      sources += [ "tools/library/LoadDynamicLibrary_posix.cpp" ]
    }
  }

  test_lib("gpu_tool_utils") {
    public_defines = []

    # Bots and even devs may not have Vulkan headers, so put
    # include/third_party/vulkan on our path so they're always available.
    all_dependent_configs = [ ":use_skia_vulkan_headers" ]

    defines = []
    if (skia_enable_discrete_gpu) {
      defines += [ "SK_ENABLE_DISCRETE_GPU" ]
    }

    deps = [ ":load_dynamic_library" ]
    public_deps = []
    sources = [
      "tools/gpu/BackendSurfaceFactory.cpp",
      "tools/gpu/BackendSurfaceFactory.h",
      "tools/gpu/BackendTextureImageFactory.cpp",
      "tools/gpu/BackendTextureImageFactory.h",
      "tools/gpu/ContextType.cpp",
      "tools/gpu/ContextType.h",
      "tools/gpu/FlushFinishTracker.cpp",
      "tools/gpu/FlushFinishTracker.h",
      "tools/gpu/GrContextFactory.cpp",
      "tools/gpu/GrContextFactory.h",
      "tools/gpu/GrTest.cpp",
      "tools/gpu/ManagedBackendTexture.cpp",
      "tools/gpu/ManagedBackendTexture.h",
      "tools/gpu/MemoryCache.cpp",
      "tools/gpu/MemoryCache.h",
      "tools/gpu/ProtectedUtils.cpp",
      "tools/gpu/ProtectedUtils.h",
      "tools/gpu/ProxyUtils.cpp",
      "tools/gpu/ProxyUtils.h",
      "tools/gpu/TestCanvas.cpp",
      "tools/gpu/TestCanvas.h",
      "tools/gpu/TestContext.cpp",
      "tools/gpu/TestOps.cpp",
      "tools/gpu/TestOps.h",
      "tools/gpu/YUVUtils.cpp",
      "tools/gpu/YUVUtils.h",
      "tools/gpu/mock/MockTestContext.cpp",
      "tools/text/gpu/TextBlobTools.cpp",
    ]

    libs = []
    frameworks = []

    if (skia_use_gl) {
      sources += [ "tools/gpu/gl/GLTestContext.cpp" ]
      if (is_ios) {
        sources += [ "tools/gpu/gl/iOS/CreatePlatformGLTestContext_iOS.mm" ]
        frameworks += [ "OpenGLES.framework" ]
      } else if (is_mac) {
        sources += [ "tools/gpu/gl/mac/CreatePlatformGLTestContext_mac.cpp" ]
      }
      if (skia_use_angle) {
        deps += [ "//third_party/angle2" ]
        sources += [ "tools/gpu/gl/angle/GLTestContext_angle.cpp" ]
      }
    }

    if (skia_use_gl && target_cpu != "wasm") {
      if (is_android || skia_use_egl) {
        sources += [ "tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp" ]
        libs += [ "EGL" ]
      } else if (is_linux) {
        sources += [ "tools/gpu/gl/glx/CreatePlatformGLTestContext_glx.cpp" ]
        libs += [
          "GLU",
          "GL",
          "X11",
        ]
      } else if (is_win) {
        sources += [
          "tools/gpu/gl/win/CreatePlatformGLTestContext_win.cpp",
          "tools/gpu/gl/win/SkWGL.h",
          "tools/gpu/gl/win/SkWGL_win.cpp",
        ]
        libs += [ "Gdi32.lib" ]
        if (target_cpu != "arm64") {
          libs += [ "OpenGL32.lib" ]
        }
      }
    }

    if (skia_use_vulkan) {
      sources += [ "tools/gpu/vk/VkTestContext.h" ]
      sources += [ "tools/gpu/vk/VkTestContext.cpp" ]
      sources += [ "tools/gpu/vk/VkTestHelper.h" ]
      sources += [ "tools/gpu/vk/VkTestHelper.cpp" ]
      sources += [ "tools/gpu/vk/VkTestMemoryAllocator.h" ]
      sources += [ "tools/gpu/vk/VkTestMemoryAllocator.cpp" ]
      sources += [ "tools/gpu/vk/VkTestUtils.h" ]
      sources += [ "tools/gpu/vk/VkTestUtils.cpp" ]
      sources += [ "tools/gpu/vk/VkYcbcrSamplerHelper.h" ]
      sources += [ "tools/gpu/vk/VkYcbcrSamplerHelper.cpp" ]
      all_dependent_configs += [ ":vulkan_memory_allocator" ]
    }
    if (skia_use_metal) {
      sources += [ "tools/gpu/mtl/MtlTestContext.mm" ]
    }
    if (skia_use_direct3d) {
      sources += [ "tools/gpu/d3d/D3DTestContext.cpp" ]
      sources += [ "tools/gpu/d3d/D3DTestUtils.cpp" ]
    }
    if (skia_use_dawn) {
      public_deps += [ "//third_party/externals/dawn/include/dawn:headers" ]
      if (is_clang) {
        cflags_cc = [ "-Wno-microsoft-cast" ]
      }
    }
    if (!skia_enable_ganesh) {
      sources -= [ "tools/gpu/GrTest.cpp" ]
      sources -= [ "tools/gpu/TestOps.cpp" ]
      sources -= [ "tools/gpu/TestOps.h" ]
    } else {
      sources += [
        "tools/gpu/ganesh/AtlasTextOpTools.cpp",
        "tools/gpu/ganesh/AtlasTextOpTools.h",
        "tools/gpu/ganesh/GrAtlasTools.cpp",
        "tools/gpu/ganesh/GrAtlasTools.h",
      ]
    }
    if (skia_enable_graphite) {
      sources += [ "tools/graphite/ContextFactory.h" ]
      sources += [ "tools/graphite/ContextFactory.cpp" ]
      sources += [ "tools/graphite/GraphiteTestContext.h" ]
      sources += [ "tools/graphite/GraphiteTestContext.cpp" ]
      sources += [ "tools/graphite/ProtectedUtils_Graphite.cpp" ]
      sources += [ "tools/graphite/UniqueKeyUtils.cpp" ]
      sources += [ "tools/graphite/UniqueKeyUtils.h" ]
      if (skia_use_dawn) {
        sources += [ "tools/graphite/dawn/GraphiteDawnTestContext.cpp" ]
        sources += [ "tools/graphite/dawn/GraphiteDawnTestContext.h" ]
      }
      if (skia_use_metal) {
        sources += [ "tools/graphite/mtl/GraphiteMtlTestContext.h" ]
        sources += [ "tools/graphite/mtl/GraphiteMtlTestContext.mm" ]
      }
      if (skia_use_vulkan) {
        sources += [ "tools/graphite/vk/GraphiteVulkanTestContext.cpp" ]
        sources += [ "tools/graphite/vk/GraphiteVulkanTestContext.h" ]
      }
    }

    if (is_fuchsia && using_fuchsia_sdk) {
      libs +=
          [ "${fuchsia_sdk_path}/arch/${target_cpu}/sysroot/lib/libzircon.so" ]
    }
  }  # test_lib("gpu_tool_utils")

  test_lib("flags") {
    sources = [
      "tools/flags/CommandLineFlags.cpp",
      "tools/flags/CommandLineFlags.h",
    ]
  }

  test_lib("common_flags_config") {
    sources = [
      "tools/flags/CommonFlags.h",
      "tools/flags/CommonFlagsConfig.cpp",
      "tools/flags/CommonFlagsConfig.h",
    ]
    deps = [ ":flags" ]
    public_deps = [ ":gpu_tool_utils" ]
  }
  test_lib("common_flags_gpu") {
    sources = [ "tools/flags/CommonFlagsGanesh.cpp" ]
    deps = [ ":flags" ]
    public_deps = [ ":gpu_tool_utils" ]
  }
  test_lib("common_flags_graphite") {
    sources = [ "tools/flags/CommonFlagsGraphite.cpp" ]
    deps = [ ":flags" ]
    public_deps = [ ":gpu_tool_utils" ]
  }
  test_lib("common_flags_images") {
    sources = [ "tools/flags/CommonFlagsImages.cpp" ]
    deps = [ ":flags" ]
  }

  test_lib("trace") {
    deps = [ ":flags" ]
    sources = [
      "tools/trace/ChromeTracingTracer.cpp",
      "tools/trace/ChromeTracingTracer.h",
      "tools/trace/EventTracingPriv.cpp",
      "tools/trace/EventTracingPriv.h",
      "tools/trace/SkDebugfTracer.cpp",
      "tools/trace/SkDebugfTracer.h",
    ]
    if (skia_use_perfetto) {
      deps += [ "//third_party/perfetto" ]
      sources += [
        "tools/trace/SkPerfettoTrace.cpp",
        "tools/trace/SkPerfettoTrace.h",
      ]
      defines = [ "SK_USE_PERFETTO" ]
    }
  }

  test_lib("tool_utils") {
    sources = [
      "tools/AndroidSkDebugToStdOut.cpp",
      "tools/AutoreleasePool.h",
      "tools/DDLPromiseImageHelper.cpp",
      "tools/DDLPromiseImageHelper.h",
      "tools/DDLTileHelper.cpp",
      "tools/DDLTileHelper.h",
      "tools/DecodeUtils.cpp",
      "tools/DecodeUtils.h",
      "tools/EncodeUtils.cpp",
      "tools/EncodeUtils.h",
      "tools/GpuToolUtils.cpp",
      "tools/GpuToolUtils.h",
      "tools/LsanSuppressions.cpp",
      "tools/MSKPPlayer.cpp",
      "tools/MSKPPlayer.h",
      "tools/ProcStats.cpp",
      "tools/ProcStats.h",
      "tools/Resources.cpp",
      "tools/Resources.h",
      "tools/RuntimeBlendUtils.cpp",
      "tools/RuntimeBlendUtils.h",
      "tools/SkMetaData.cpp",
      "tools/SkMetaData.h",
      "tools/SkSharingProc.cpp",
      "tools/SkSharingProc.h",
      "tools/Stats.h",
      "tools/TestFontDataProvider.cpp",
      "tools/TestFontDataProvider.h",
      "tools/ToolUtils.cpp",
      "tools/ToolUtils.h",
      "tools/UrlDataManager.cpp",
      "tools/UrlDataManager.h",
      "tools/debugger/DebugCanvas.cpp",
      "tools/debugger/DebugCanvas.h",
      "tools/debugger/DebugLayerManager.cpp",
      "tools/debugger/DebugLayerManager.h",
      "tools/debugger/DrawCommand.cpp",
      "tools/debugger/DrawCommand.h",
      "tools/debugger/JsonWriteBuffer.cpp",
      "tools/debugger/JsonWriteBuffer.h",
      "tools/fonts/FontToolUtils.cpp",
      "tools/fonts/FontToolUtils.h",
      "tools/fonts/RandomScalerContext.cpp",
      "tools/fonts/RandomScalerContext.h",
      "tools/fonts/TestEmptyTypeface.h",
      "tools/fonts/TestFontMgr.cpp",
      "tools/fonts/TestFontMgr.h",
      "tools/fonts/TestSVGTypeface.cpp",
      "tools/fonts/TestSVGTypeface.h",
      "tools/fonts/TestTypeface.cpp",
      "tools/fonts/TestTypeface.h",
      "tools/text/SkTextBlobTrace.cpp",
      "tools/text/SkTextBlobTrace.h",
      "tools/timer/TimeUtils.h",
      "tools/timer/Timer.cpp",
      "tools/timer/Timer.h",
    ]
    if (skia_enable_svg) {
      sources += [
        "tools/SvgPathExtractor.cpp",
        "tools/SvgPathExtractor.h",
      ]
    }
    if (target_cpu != "wasm") {
      sources += [ "tools/CrashHandler.cpp" ]
    }
    libs = []
    frameworks = []
    if (is_ios) {
      sources += [ "tools/ios_utils.m" ]
      sources += [ "tools/ios_utils.h" ]
      sources += [ "tools/AutoreleasePool.mm" ]
      frameworks += [ "Foundation.framework" ]
    } else if (is_mac) {
      sources += [ "tools/AutoreleasePool.mm" ]
      frameworks += [ "Foundation.framework" ]
    } else if (is_win && !skia_enable_winuwp) {
      libs += [ "DbgHelp.lib" ]
    }

    defines = []
    if (skia_tools_require_resources) {
      defines += [ "SK_TOOLS_REQUIRE_RESOURCES" ]
    }
    deps = [ ":flags" ]
    if (skia_enable_svg) {
      deps += [ "modules/svg" ]
    }
    public_deps = [ ":gpu_tool_utils" ]
  }

  test_lib("etc1") {
    sources = [ "third_party/etc1/etc1.cpp" ]
  }

  import("gn/gm.gni")
  test_lib("gm") {
    sources = gm_sources
    if (skia_use_gl) {
      sources += gl_gm_sources
    }
    if (!skia_enable_ganesh) {
      sources -= ganesh_gm_sources
    }
    if (skia_use_fontations) {
      sources += fontations_gm_sources
    }
    deps = [
      ":etc1",
      ":flags",
      ":skia",
      ":tool_utils",
      "modules/skottie",
      "modules/skottie:gm",
      "modules/skparagraph",
      "modules/skparagraph:gm",
      "modules/skresources",
      "modules/skshaper",
    ]
    if (is_skia_dev_build) {
      sources += [ "gm/fiddle.cpp" ]
      deps += [ ":skia.h" ]
    }
    public_deps = [ ":gpu_tool_utils" ]

    if (skia_use_ffmpeg) {
      deps += [ "experimental/ffmpeg:video_decoder" ]
      sources += [ "gm/video_decoder.cpp" ]
    }
  }

  test_lib("test") {
    sources = [
      "tests/CtsEnforcement.cpp",
      "tests/Test.cpp",
      "tests/Test.h",
      "tests/TestHarness.cpp",
      "tests/TestHarness.h",
      "tests/TestUtils.cpp",
      "tests/TestUtils.h",
    ]
    deps = [
      ":flags",
      ":skia",
      ":tool_utils",
    ]
    public_deps = [
      ":gpu_tool_utils",  # Test.h #includes headers from this target.
    ]
  }

  import("gn/tests.gni")
  test_lib("tests") {
    sources = tests_sources + pathops_tests_sources
    frameworks = []
    if (skia_use_metal) {
      sources += metal_tests_sources
      cflags_objcc = [ "-fobjc-arc" ]
      frameworks += [ "MetalKit.framework" ]
    }
    if (skia_use_jpeg_gainmaps) {
      sources += jpeg_gainmap_tests_sources
    }
    if (skia_use_gl) {
      sources += gl_tests_sources
    }
    if (skia_use_vulkan) {
      sources += skia_gpu_vk_chromium_public
      sources += skia_gpu_vk_chromium_private
    }
    if (skia_enable_graphite) {
      sources += graphite_tests_sources
      if (skia_use_dawn) {
        sources += graphite_dawn_tests_sources
      }
      if (skia_use_metal) {
        sources += graphite_metal_tests_sources
      }
      if (skia_use_vulkan) {
        sources += graphite_vulkan_tests_sources
      }
    }
    if (!skia_enable_ganesh) {
      sources -= ganesh_tests_sources
    }
    if (skia_enable_precompile) {
      sources += precompile_tests_sources
    }
    deps = [
      ":flags",
      ":fontmgr_android_tests",
      ":fontmgr_fontconfig_tests",
      ":fontmgr_mac_ct_tests",
      ":skia",
      ":test",
      ":tool_utils",
      ":typeface_fontations_tests",
      "modules/bentleyottmann:tests",
      "modules/skottie:tests",
      "modules/skparagraph:tests",
      "modules/sksg:tests",
      "modules/skshaper",
      "modules/skshaper:tests",
      "modules/skunicode:tests",
      "modules/svg:tests",
      "//third_party/libpng",
      "//third_party/libwebp",
      "//third_party/zlib",
    ]
  }

  import("gn/bench.gni")
  test_lib("bench") {
    sources = bench_sources
    if (skia_enable_graphite) {
      sources += graphite_bench_sources
    }
    if (!skia_enable_ganesh) {
      sources -= ganesh_bench_sources
    }
    deps = [
      ":flags",
      ":gm",
      ":gpu_tool_utils",
      ":skia",
      ":tool_utils",
      "modules/skparagraph:bench",
      "modules/skshaper",
    ]
  }

  if (is_linux || is_mac || skia_enable_optimize_size) {
    if (skia_enable_skottie) {
      test_app("skottie_tool") {
        deps = [ "modules/skottie:tool" ]
      }
      test_app("skottie_tool_cpu") {
        deps = [ "modules/skottie:tool_cpu" ]
      }
      test_app("skottie_tool_gpu") {
        deps = [ "modules/skottie:tool_gpu" ]
      }
      test_app("skottie_preshape_tool") {
        deps = [ "modules/skottie:preshape_tool" ]
      }
    }
    if (skia_enable_svg && skia_use_expat && defined(is_skia_standalone)) {
      test_app("svg_tool") {
        deps = [ "modules/svg:tool" ]
      }
    }
  }

  test_lib("hash_and_encode") {
    sources = [
      "tools/HashAndEncode.cpp",
      "tools/HashAndEncode.h",
    ]
    deps = [
      ":flags",
      ":skia",
      "//third_party/libpng",
    ]
  }
  if (target_cpu != "wasm") {
    test_app("convert-to-nia") {
      sources = [ "tools/convert-to-nia.cpp" ]
      deps = [ ":skia" ]
    }
    test_app("imgcvt") {
      sources = [ "tools/imgcvt.cpp" ]
      configs = [ ":use_skia_vulkan_headers" ]
      deps = [
        ":skia",
        "modules/skcms",
      ]
    }
    test_app("dm") {
      sources = [
        "dm/DM.cpp",
        "dm/DMGpuTestProcs.cpp",
        "dm/DMJsonWriter.cpp",
        "dm/DMJsonWriter.h",
        "dm/DMSrcSink.cpp",
        "dm/DMSrcSink.h",
      ]
      deps = [
        ":common_flags_config",
        ":common_flags_gpu",
        ":common_flags_graphite",
        ":common_flags_images",
        ":compile_all_sksl_tests",
        ":flags",
        ":gm",
        ":gpu_tool_utils",
        ":hash_and_encode",
        ":skia",
        ":tests",
        ":tool_utils",
        ":trace",
        "modules/skottie",
        "modules/skottie:utils",
        "modules/skshaper",
        "modules/skunicode",
        "modules/svg",
      ]
    }
    test_app("filterfuzz") {
      sources = [ "experimental/filterfuzz/filterfuzz.cpp" ]
      deps = [
        ":flags",
        ":skia",
        ":tool_utils",
      ]
    }

    if (!skia_enable_optimize_size && !skia_use_fontations &&
        !skia_enable_vello_shaders) {
      # optional separate library to dlopen when running CanvasStateTests.
      skia_shared_library("canvas_state_lib") {
        sources = [
          "tests/CanvasStateHelpers.cpp",
          "tests/CanvasStateHelpers.h",
        ]
        deps = [ ":skia" ]
      }
    }
  }

  if (!is_win) {
    test_app("blob_cache_sim") {
      sources = [ "tools/blob_cache_sim.cpp" ]
      deps = [
        ":skia",
        ":tool_utils",
      ]
    }
  }

  test_app("nanobench") {
    sources = [
      "bench/nanobench.cpp",
      "bench/nanobench.h",
    ]
    deps = [
      ":bench",
      ":common_flags_config",
      ":common_flags_gpu",
      ":common_flags_graphite",
      ":common_flags_images",
      ":flags",
      ":gm",
      ":gpu_tool_utils",
      ":skia",
      ":tool_utils",
      ":trace",
      "modules/skparagraph",
      "modules/skshaper",
      "modules/skunicode",
      "modules/svg",
    ]
  }

  test_app("skpinfo") {
    sources = [ "tools/skpinfo.cpp" ]
    configs = [ ":use_skia_vulkan_headers" ]
    deps = [
      ":flags",
      ":skia",
    ]
  }

  if (skia_use_ffmpeg) {
    test_app("skottie2movie") {
      sources = [ "tools/skottie2movie.cpp" ]
      deps = [
        ":flags",
        ":gpu_tool_utils",
        ":skia",
        "experimental/ffmpeg:video_encoder",
        "modules/skottie",
        "modules/skottie:utils",
      ]
    }
  }

  test_app("skpbench") {
    sources = [
      "bench/BigPath.cpp",
      "tools/skpbench/skpbench.cpp",
    ]
    deps = [
      ":common_flags_config",
      ":common_flags_gpu",
      ":flags",
      ":gpu_tool_utils",
      ":skia",
      ":tool_utils",
    ]
  }

  if (is_linux && skia_use_icu) {
    test_app("sktexttopdf") {
      sources = [ "tools/using_skia_and_harfbuzz.cpp" ]
      deps = [
        ":skia",
        "modules/skshaper",
      ]
    }
  }

  if (is_linux || is_mac) {
    test_app("create_test_font") {
      sources = [ "tools/fonts/create_test_font.cpp" ]
      deps = [ ":skia" ]
      assert_no_deps = [
        # tool_utils requires the output of this app.
        ":tool_utils",
      ]
    }
  }

  if (skia_use_expat) {
    test_app("create_test_font_color") {
      sources = [ "tools/fonts/create_test_font_color.cpp" ]
      deps = [
        ":flags",
        ":skia",
        ":tool_utils",
        "//modules/svg",
      ]
    }
  }

  test_app("get_images_from_skps") {
    sources = [ "tools/get_images_from_skps.cpp" ]
    deps = [
      ":flags",
      ":skia",
    ]
  }

  if (!is_ios && target_cpu != "wasm" &&
      !((is_win || is_mac) && target_cpu == "arm64")) {
    test_app("skiaserve") {
      sources = [
        "tools/skiaserve/Request.cpp",
        "tools/skiaserve/Response.cpp",
        "tools/skiaserve/skiaserve.cpp",
        "tools/skiaserve/urlhandlers/BreakHandler.cpp",
        "tools/skiaserve/urlhandlers/ClipAlphaHandler.cpp",
        "tools/skiaserve/urlhandlers/CmdHandler.cpp",
        "tools/skiaserve/urlhandlers/ColorModeHandler.cpp",
        "tools/skiaserve/urlhandlers/DataHandler.cpp",
        "tools/skiaserve/urlhandlers/DownloadHandler.cpp",
        "tools/skiaserve/urlhandlers/EnableGPUHandler.cpp",
        "tools/skiaserve/urlhandlers/ImgHandler.cpp",
        "tools/skiaserve/urlhandlers/InfoHandler.cpp",
        "tools/skiaserve/urlhandlers/OpBoundsHandler.cpp",
        "tools/skiaserve/urlhandlers/OpsHandler.cpp",
        "tools/skiaserve/urlhandlers/OverdrawHandler.cpp",
        "tools/skiaserve/urlhandlers/PostHandler.cpp",
        "tools/skiaserve/urlhandlers/QuitHandler.cpp",
        "tools/skiaserve/urlhandlers/RootHandler.cpp",
      ]
      deps = [
        ":flags",
        ":gpu_tool_utils",
        ":skia",
        ":tool_utils",
        "//third_party/libmicrohttpd",
      ]
    }
  }

  test_app("fuzz") {
    sources = [
      "fuzz/Fuzz.cpp",
      "fuzz/Fuzz.h",
      "fuzz/FuzzCanvas.cpp",
      "fuzz/FuzzCommon.cpp",
      "fuzz/FuzzCommon.h",
      "fuzz/FuzzCreateDDL.cpp",
      "fuzz/FuzzCubicRoots.cpp",
      "fuzz/FuzzDDLThreading.cpp",
      "fuzz/FuzzDrawFunctions.cpp",
      "fuzz/FuzzEncoders.cpp",
      "fuzz/FuzzGradients.cpp",
      "fuzz/FuzzMain.cpp",
      "fuzz/FuzzParsePath.cpp",
      "fuzz/FuzzPathMeasure.cpp",
      "fuzz/FuzzPathop.cpp",
      "fuzz/FuzzPolyUtils.cpp",
      "fuzz/FuzzQuadRoots.cpp",
      "fuzz/FuzzRegionOp.cpp",
      "fuzz/FuzzSkParagraph.cpp",
      "fuzz/FuzzTriangulation.cpp",
      "fuzz/oss_fuzz/FuzzAndroidCodec.cpp",
      "fuzz/oss_fuzz/FuzzAnimatedImage.cpp",
      "fuzz/oss_fuzz/FuzzCOLRv1.cpp",
      "fuzz/oss_fuzz/FuzzColorspace.cpp",
      "fuzz/oss_fuzz/FuzzImage.cpp",
      "fuzz/oss_fuzz/FuzzImageFilterDeserialize.cpp",
      "fuzz/oss_fuzz/FuzzIncrementalImage.cpp",
      "fuzz/oss_fuzz/FuzzJSON.cpp",
      "fuzz/oss_fuzz/FuzzParsePath.cpp",
      "fuzz/oss_fuzz/FuzzPathDeserialize.cpp",
      "fuzz/oss_fuzz/FuzzRegionDeserialize.cpp",
      "fuzz/oss_fuzz/FuzzRegionSetPath.cpp",
      "fuzz/oss_fuzz/FuzzSKP.cpp",
      "fuzz/oss_fuzz/FuzzSKSL2GLSL.cpp",
      "fuzz/oss_fuzz/FuzzSKSL2Metal.cpp",
      "fuzz/oss_fuzz/FuzzSKSL2Pipeline.cpp",
      "fuzz/oss_fuzz/FuzzSKSL2SPIRV.cpp",
      "fuzz/oss_fuzz/FuzzSKSL2WGSL.cpp",
      "fuzz/oss_fuzz/FuzzSVG.cpp",
      "fuzz/oss_fuzz/FuzzSkDescriptorDeserialize.cpp",
      "fuzz/oss_fuzz/FuzzSkMeshSpecification.cpp",
      "fuzz/oss_fuzz/FuzzSkParagraph.cpp",
      "fuzz/oss_fuzz/FuzzSkRuntimeBlender.cpp",
      "fuzz/oss_fuzz/FuzzSkRuntimeColorFilter.cpp",
      "fuzz/oss_fuzz/FuzzSkRuntimeEffect.cpp",
      "fuzz/oss_fuzz/FuzzTextBlobDeserialize.cpp",
      "tools/UrlDataManager.cpp",
      "tools/debugger/DebugCanvas.cpp",
      "tools/debugger/DebugLayerManager.cpp",
      "tools/debugger/DrawCommand.cpp",
      "tools/debugger/JsonWriteBuffer.cpp",
      "tools/fonts/FontToolUtils.cpp",
    ]
    if (skia_enable_graphite && skia_enable_precompile) {
      sources += [ "fuzz/FuzzPrecompile.cpp" ]
    }
    deps = [
      ":flags",
      ":gpu_tool_utils",
      ":skia",
      "modules/skottie:fuzz",
      "modules/skparagraph",
      "modules/svg",
    ]
  }

  test_app("dump_record") {
    sources = [ "tools/dump_record.cpp" ]
    deps = [
      ":flags",
      ":skia",
    ]
  }

  test_app("skdiff") {
    sources = [
      "tools/skdiff/skdiff.cpp",
      "tools/skdiff/skdiff_html.cpp",
      "tools/skdiff/skdiff_main.cpp",
      "tools/skdiff/skdiff_utils.cpp",
    ]
    deps = [ ":skia" ]
  }

  test_app("skp_parser") {
    sources = [ "tools/skp_parser.cpp" ]
    deps = [
      ":skia",
      ":tool_utils",
    ]
  }

  if (!is_win) {
    source_set("skqp_lib") {  # Not a skia_source_set
      check_includes = false
      testonly = true
      public_configs = [ ":skia_private" ]
      sources = [
        "tools/skqp/src/skqp.cpp",
        "tools/skqp/src/skqp.h",
        "tools/skqp/src/skqp_GpuTestProcs.cpp",
      ]
      deps = [
        ":gm",
        ":skia",
        ":tests",
        ":tool_utils",
      ]
    }
    test_app("skqp") {
      sources = [ "tools/skqp/src/skqp_main.cpp" ]
      include_dirs = [ "//" ]
      lib_dirs = []
      deps = [ ":skqp_lib" ]
    }
  }
  if (is_fuchsia) {
    # Build a package repository for skqp on Fuchsia.
    group("skqp_repo") {
      testonly = true
      deps = [ "//build/fuchsia/skqp:skqp_repo" ]
    }
  }
  if (is_android) {
    shared_library("libskqp_jni") {  # Not a skia_shared_library
      configs += [ ":skia_private" ]
      testonly = true
      sources = [ "tools/skqp/src/jni_skqp.cpp" ]
      deps = [
        ":skia",
        ":skqp_lib",
        ":tool_utils",
      ]
      libs = [ "android" ]
    }
  }
  if (is_android && skia_use_gl) {
    test_app("skottie_android") {
      is_shared_library = true

      sources = [ "platform_tools/android/apps/skottie/skottielib/src/main/cpp/native-lib.cpp" ]
      libs = []

      deps = [
        ":skia",
        "modules/skottie",
        "modules/skshaper",
        "modules/skunicode",
      ]
    }

    test_app("jetski") {
      is_shared_library = true

      sources = [
        "modules/jetski/src/Canvas.cpp",
        "modules/jetski/src/ColorFilters.cpp",
        "modules/jetski/src/Gradients.cpp",
        "modules/jetski/src/Image.cpp",
        "modules/jetski/src/ImageFilter.cpp",
        "modules/jetski/src/JetSki.cpp",
        "modules/jetski/src/Matrix.cpp",
        "modules/jetski/src/Paint.cpp",
        "modules/jetski/src/Path.cpp",
        "modules/jetski/src/PathBuilder.cpp",
        "modules/jetski/src/RuntimeShaderBuilder.cpp",
        "modules/jetski/src/Shader.cpp",
        "modules/jetski/src/SkottieAnimation.cpp",
        "modules/jetski/src/Surface.cpp",
        "modules/jetski/src/Surface.h",
        "modules/jetski/src/SurfaceThread.cpp",
        "modules/jetski/src/SurfaceThread.h",
        "modules/jetski/src/Utils.cpp",
      ]
      libs = [
        "android",
        "jnigraphics",
      ]

      deps = [
        ":skia",
        "modules/skottie:skottie",
        "tools/window:window",
      ]
    }
  }

  if (is_ios && skia_enable_skottie) {
    group("skottie_ios") {
      deps = [ "tools/skottie_ios_app" ]
    }
  }

  test_lib("sk_app") {
    public_deps = [
      ":gpu_tool_utils",
      ":skia",
    ]
    sources = [
      "tools/sk_app/Application.h",
      "tools/sk_app/CommandSet.cpp",
      "tools/sk_app/CommandSet.h",
      "tools/sk_app/Window.cpp",
      "tools/sk_app/Window.h",
    ]
    libs = []
    frameworks = []

    if (is_android) {
      sources += [
        "tools/sk_app/android/Window_android.cpp",
        "tools/sk_app/android/Window_android.h",
        "tools/sk_app/android/main_android.cpp",
        "tools/sk_app/android/surface_glue_android.cpp",
        "tools/sk_app/android/surface_glue_android.h",
      ]
      libs += [ "android" ]
    } else if (is_linux) {
      sources += [
        "tools/sk_app/unix/Window_unix.cpp",
        "tools/sk_app/unix/Window_unix.h",
        "tools/sk_app/unix/keysym2ucs.c",
        "tools/sk_app/unix/keysym2ucs.h",
        "tools/sk_app/unix/main_unix.cpp",
      ]
      libs += [
        "GL",  # Used by raster window context, so cannot be behind skia_use_gl.
        "X11",
      ]
    } else if (is_win) {
      sources += [
        "tools/sk_app/win/Window_win.cpp",
        "tools/sk_app/win/Window_win.h",
        "tools/sk_app/win/main_win.cpp",
      ]
    } else if (is_mac) {
      sources += [
        "tools/sk_app/mac/Window_mac.h",
        "tools/sk_app/mac/Window_mac.mm",
        "tools/sk_app/mac/main_mac.mm",
      ]
      frameworks += [
        "QuartzCore.framework",
        "Cocoa.framework",
        "Foundation.framework",
      ]
    } else if (is_ios) {
      sources += [
        "tools/sk_app/ios/Window_ios.h",
        "tools/sk_app/ios/Window_ios.mm",
        "tools/sk_app/ios/main_ios.mm",
      ]
      frameworks += [ "QuartzCore.framework" ]
    }

    deps = [
      ":tool_utils",
      "tools/window",
    ]
    if (is_android) {
      deps += [ "//third_party/native_app_glue" ]
    }
    if (skia_use_gl && skia_use_angle) {
      deps += [ "//third_party/angle2" ]
    }
  }

  if (!skia_use_vulkan && (is_mac || is_linux || is_win)) {
    test_app("fiddle_examples") {
      sources = [
        "tools/fiddle/all_examples.cpp",
        "tools/fiddle/examples.cpp",
        "tools/fiddle/examples.h",
      ]
      if (is_win) {
        cflags = [
          "/wd4756",  # Overflow in constant arithmetic
          "/wd4305",  # truncation from 'double' to 'float'
        ]
      }
      deps = [
        ":skia",
        ":skia.h",
        "modules/skottie",
        "modules/skparagraph",
        "modules/skshaper",
        "modules/svg",
      ]
    }
  }

  # sk_app can work without GL but viewer always runs raster through a GL window context.
  if (skia_use_gl) {
    test_app("viewer") {
      is_shared_library = is_android
      sources = [
        "tools/viewer/3DSlide.cpp",
        "tools/viewer/AndroidShadowsSlide.cpp",
        "tools/viewer/AnimBlurSlide.cpp",
        "tools/viewer/AnimTimer.h",
        "tools/viewer/AnimatedImageSlide.cpp",
        "tools/viewer/AnimatedRectsSlide.cpp",
        "tools/viewer/AnimatedTextSlide.cpp",
        "tools/viewer/ArcSlide.cpp",
        "tools/viewer/AtlasSlide.cpp",
        "tools/viewer/AudioSlide.cpp",
        "tools/viewer/BisectSlide.cpp",
        "tools/viewer/BisectSlide.h",
        "tools/viewer/CameraSlide.cpp",
        "tools/viewer/ChartSlide.cpp",
        "tools/viewer/ChineseFlingSlide.cpp",
        "tools/viewer/ClickHandlerSlide.cpp",
        "tools/viewer/ClickHandlerSlide.h",
        "tools/viewer/ClipSlide.cpp",
        "tools/viewer/ClockSlide.cpp",
        "tools/viewer/CowboySlide.cpp",
        "tools/viewer/DegenerateQuadsSlide.cpp",
        "tools/viewer/DegenerateTwoPtRadialsSlide.cpp",
        "tools/viewer/FatBitsSlide.cpp",
        "tools/viewer/FilterBoundsSlide.cpp",
        "tools/viewer/FitCubicToCircleSlide.cpp",
        "tools/viewer/FlutterAnimateSlide.cpp",
        "tools/viewer/GMSlide.cpp",
        "tools/viewer/GMSlide.h",
        "tools/viewer/GlyphTransformSlide.cpp",
        "tools/viewer/GradientsSlide.cpp",
        "tools/viewer/GraphitePrimitivesSlide.cpp",
        "tools/viewer/ImGuiLayer.cpp",
        "tools/viewer/ImGuiLayer.h",
        "tools/viewer/ImageFilterDAGSlide.cpp",
        "tools/viewer/ImageSlide.cpp",
        "tools/viewer/ImageSlide.h",
        "tools/viewer/LayersSlide.cpp",
        "tools/viewer/MSKPSlide.cpp",
        "tools/viewer/MSKPSlide.h",
        "tools/viewer/ManyRectsSlide.cpp",
        "tools/viewer/MaterialShadowsSlide.cpp",
        "tools/viewer/MegaStrokeSlide.cpp",
        "tools/viewer/MeshSlide.cpp",
        "tools/viewer/MixerSlide.cpp",
        "tools/viewer/MotionMarkSlide.cpp",
        "tools/viewer/PatchSlide.cpp",
        "tools/viewer/PathClipSlide.cpp",
        "tools/viewer/PathEffectsSlide.cpp",
        "tools/viewer/PathOverstrokeSlide.cpp",
        "tools/viewer/PathSlide.cpp",
        "tools/viewer/PathTessellatorsSlide.cpp",
        "tools/viewer/PathTextSlide.cpp",
        "tools/viewer/ProtectedSlide.cpp",
        "tools/viewer/QuadStrokerSlide.cpp",
        "tools/viewer/RectanizerSlide.cpp",
        "tools/viewer/RepeatTileSlide.cpp",
        "tools/viewer/SBIXSlide.cpp",
        "tools/viewer/SGSlide.cpp",
        "tools/viewer/SKPSlide.cpp",
        "tools/viewer/SKPSlide.h",
        "tools/viewer/SVGFileSlide.cpp",
        "tools/viewer/ShadowColorSlide.cpp",
        "tools/viewer/ShadowReferenceSlide.cpp",
        "tools/viewer/ShadowUtilsSlide.cpp",
        "tools/viewer/ShipSlide.cpp",
        "tools/viewer/SimpleStrokerSlide.cpp",
        "tools/viewer/SkSLDebuggerSlide.cpp",
        "tools/viewer/SkSLDebuggerSlide.h",
        "tools/viewer/SkSLSlide.cpp",
        "tools/viewer/SkSLSlide.h",
        "tools/viewer/SkottieSlide.cpp",
        "tools/viewer/SkottieSlide.h",
        "tools/viewer/Slide.h",
        "tools/viewer/SlideDir.cpp",
        "tools/viewer/SlideDir.h",
        "tools/viewer/SlidesSlide.cpp",
        "tools/viewer/StatsLayer.cpp",
        "tools/viewer/StatsLayer.h",
        "tools/viewer/StringArtSlide.cpp",
        "tools/viewer/StrokeVerbSlide.cpp",
        "tools/viewer/SvgSlide.cpp",
        "tools/viewer/SvgSlide.h",
        "tools/viewer/TextBoxSlide.cpp",
        "tools/viewer/TextureUploadSlide.cpp",
        "tools/viewer/ThinAASlide.cpp",
        "tools/viewer/TimingSlide.cpp",
        "tools/viewer/TouchGesture.cpp",
        "tools/viewer/TouchGesture.h",
        "tools/viewer/TypefaceSlide.cpp",
        "tools/viewer/VariableWidthStrokerSlide.cpp",
        "tools/viewer/Viewer.cpp",
        "tools/viewer/Viewer.h",
        "tools/viewer/XferSlide.cpp",
      ]
      libs = []

      deps = [
        ":common_flags_config",
        ":common_flags_gpu",
        ":common_flags_graphite",
        ":flags",
        ":gm",
        ":gpu_tool_utils",
        ":sk_app",
        ":skia",
        ":tool_utils",
        ":trace",
        ":xml",
        "modules/audioplayer",
        "modules/skottie",
        "modules/skottie:utils",
        "modules/skparagraph:slides",
        "modules/sksg:slides",
        "modules/skshaper:skshaper",
        "modules/skunicode",
        "modules/svg",
        "//third_party/imgui",
      ]
      if (skia_use_vulkan) {
        deps += [
          "//third_party/externals/spirv-tools:spvtools",

          #spvtools depends on this but doesn't deps it in.
          "//third_party/externals/spirv-tools:spvtools_val",
        ]
      }
    }
  }

  if (skia_use_vulkan) {
    test_app("VulkanBasic") {
      # Bots and even devs may not have Vulkan headers, so put
      # include/third_party/vulkan on our path so they're always available.
      all_dependent_configs = [
        ":use_skia_vulkan_headers",
        ":vulkan_memory_allocator",
      ]

      sources = [ "example/VulkanBasic.cpp" ]
      sources += [ "tools/gpu/vk/VkTestMemoryAllocator.h" ]
      sources += [ "tools/gpu/vk/VkTestMemoryAllocator.cpp" ]
      sources += [ "tools/gpu/vk/VkTestUtils.h" ]
      sources += [ "tools/gpu/vk/VkTestUtils.cpp" ]
      deps = [
        ":load_dynamic_library",
        ":skia",
      ]
    }
  }

  if (is_ios && skia_use_metal && skia_enable_ganesh) {
    group("minimal_ios_mtl_skia_app") {
      deps = [ "experimental/minimal_ios_mtl_skia_app" ]
    }
  }

  if (is_linux || is_win || is_mac) {
    test_app("editor") {
      is_shared_library = is_android
      deps = [ "modules/skplaintexteditor:editor_app" ]
    }
  }

  skia_executable("image_diff_metric") {
    sources = [ "tools/image_diff_metric.cpp" ]
    deps = [ ":skia" ]
  }

  group("modules_testonly") {
    testonly = true
    deps = []
    if (is_wasm) {
      deps += [ "modules/canvaskit:viewer_wasm" ]
    }
  }

  if (skia_build_fuzzers) {
    template("libfuzzer_app") {
      skia_executable(target_name) {
        output_dir = root_build_dir
        check_includes = false
        forward_variables_from(invoker, "*", [ "is_shared_library" ])
        if (!defined(configs)) {
          configs = []
        }
        configs += [ ":skia_private" ]
        sources += [
          "fuzz/Fuzz.cpp",
          "fuzz/FuzzCommon.cpp",
        ]
        deps += [
          ":flags",
          ":gpu_tool_utils",
          ":skia",
          ":tool_utils",
        ]
        defines = [
          "SK_BUILD_FOR_LIBFUZZER",
          "SK_BUILD_FOR_FUZZER",
        ]
        if (skia_use_libfuzzer_defaults) {
          cflags = [ "-fsanitize=fuzzer" ]
          ldflags = [ "-fsanitize=fuzzer" ]
        }
        testonly = true
      }
    }

    libfuzzer_app("region_deserialize") {
      sources = [ "fuzz/oss_fuzz/FuzzRegionDeserialize.cpp" ]
      deps = []
    }

    libfuzzer_app("image_filter_deserialize") {
      sources = [ "fuzz/oss_fuzz/FuzzImageFilterDeserialize.cpp" ]
      deps = [ "modules/svg" ]
    }

    libfuzzer_app("region_set_path") {
      sources = [ "fuzz/oss_fuzz/FuzzRegionSetPath.cpp" ]
      deps = []
    }

    libfuzzer_app("textblob_deserialize") {
      sources = [ "fuzz/oss_fuzz/FuzzTextBlobDeserialize.cpp" ]
      deps = [ "modules/svg" ]
    }

    libfuzzer_app("path_deserialize") {
      sources = [ "fuzz/oss_fuzz/FuzzPathDeserialize.cpp" ]
      deps = []
    }

    libfuzzer_app("image_decode") {
      sources = [ "fuzz/oss_fuzz/FuzzImage.cpp" ]
      deps = []
    }

    libfuzzer_app("animated_image_decode") {
      sources = [ "fuzz/oss_fuzz/FuzzAnimatedImage.cpp" ]
      deps = []
    }

    libfuzzer_app("api_create_ddl") {
      sources = [
        "fuzz/FuzzCreateDDL.cpp",
        "fuzz/oss_fuzz/FuzzAPICreateDDL.cpp",
      ]
      deps = [
        "modules/svg",
        "//third_party/libpng",
      ]
    }

    libfuzzer_app("api_draw_functions") {
      sources = [
        "fuzz/FuzzDrawFunctions.cpp",
        "fuzz/oss_fuzz/FuzzDrawFunctions.cpp",
      ]
      deps = []
    }

    libfuzzer_app("api_ddl_threading") {
      sources = [
        "fuzz/FuzzDDLThreading.cpp",
        "fuzz/oss_fuzz/FuzzDDLThreading.cpp",
      ]
      deps = []
    }

    libfuzzer_app("api_gradients") {
      sources = [
        "fuzz/FuzzGradients.cpp",
        "fuzz/oss_fuzz/FuzzGradients.cpp",
      ]
      deps = []
    }

    libfuzzer_app("api_image_filter") {
      sources = [
        "fuzz/FuzzCanvas.cpp",
        "fuzz/oss_fuzz/FuzzAPIImageFilter.cpp",
      ]
      deps = [ "//third_party/libpng" ]
    }

    libfuzzer_app("api_path_measure") {
      sources = [
        "fuzz/FuzzPathMeasure.cpp",
        "fuzz/oss_fuzz/FuzzPathMeasure.cpp",
      ]
      deps = []
    }

    libfuzzer_app("api_pathop") {
      sources = [
        "fuzz/FuzzPathop.cpp",
        "fuzz/oss_fuzz/FuzzPathop.cpp",
      ]
      deps = []
    }

    libfuzzer_app("api_triangulation") {
      sources = [
        "fuzz/FuzzTriangulation.cpp",
        "fuzz/oss_fuzz/FuzzTriangulation.cpp",
      ]
      deps = []
    }

    libfuzzer_app("api_raster_n32_canvas") {
      sources = [
        "fuzz/FuzzCanvas.cpp",
        "fuzz/oss_fuzz/FuzzRasterN32Canvas.cpp",
      ]
      deps = [
        "modules/svg",
        "//third_party/libpng",
      ]
    }

    libfuzzer_app("api_regionop") {
      sources = [
        "fuzz/FuzzRegionOp.cpp",
        "fuzz/oss_fuzz/FuzzRegionOp.cpp",
      ]
      deps = []
    }

    if (skia_enable_ganesh) {
      libfuzzer_app("api_mock_gpu_canvas") {
        sources = [
          "fuzz/FuzzCanvas.cpp",
          "fuzz/oss_fuzz/FuzzMockGPUCanvas.cpp",
        ]
        deps = [
          "modules/svg",
          "//third_party/libpng",
        ]
      }
    }

    if (skia_enable_graphite && skia_enable_precompile) {
      libfuzzer_app("api_precompile") {
        sources = [
          "fuzz/FuzzPrecompile.cpp",
          "fuzz/oss_fuzz/FuzzPrecompile.cpp",
        ]
        deps = []
      }
    }

    libfuzzer_app("api_null_canvas") {
      sources = [
        "fuzz/FuzzCanvas.cpp",
        "fuzz/oss_fuzz/FuzzNullCanvas.cpp",
      ]
      deps = [
        "modules/svg",
        "//third_party/libpng",
      ]
    }

    libfuzzer_app("api_skparagraph") {
      sources = [
        "fuzz/FuzzSkParagraph.cpp",
        "fuzz/oss_fuzz/FuzzSkParagraph.cpp",
      ]
      deps = [ "modules/skparagraph" ]
    }

    libfuzzer_app("api_svg_canvas") {
      sources = [
        "fuzz/FuzzCanvas.cpp",
        "fuzz/oss_fuzz/FuzzAPISVGCanvas.cpp",
      ]
      deps = [
        "modules/svg",
        "//third_party/libpng",
      ]
    }

    libfuzzer_app("png_encoder") {
      sources = [
        "fuzz/FuzzEncoders.cpp",
        "fuzz/oss_fuzz/FuzzPNGEncoder.cpp",
      ]
      deps = []
    }

    libfuzzer_app("jpeg_encoder") {
      sources = [
        "fuzz/FuzzEncoders.cpp",
        "fuzz/oss_fuzz/FuzzJPEGEncoder.cpp",
      ]
      deps = []
    }

    libfuzzer_app("webp_encoder") {
      sources = [
        "fuzz/FuzzEncoders.cpp",
        "fuzz/oss_fuzz/FuzzWEBPEncoder.cpp",
      ]
      deps = []
    }

    libfuzzer_app("skottie_json") {
      sources = [ "modules/skottie/fuzz/FuzzSkottieJSON.cpp" ]
      deps = [
        "modules/skottie:skottie",
        "modules/svg",
      ]
    }

    libfuzzer_app("skjson") {
      sources = [ "fuzz/oss_fuzz/FuzzJSON.cpp" ]
      deps = []
    }

    libfuzzer_app("api_polyutils") {
      sources = [
        "fuzz/FuzzPolyUtils.cpp",
        "fuzz/oss_fuzz/FuzzPolyUtils.cpp",
      ]
      deps = [ ":skia" ]
    }

    libfuzzer_app("android_codec") {
      sources = [ "fuzz/oss_fuzz/FuzzAndroidCodec.cpp" ]
      deps = []
    }

    libfuzzer_app("image_decode_incremental") {
      sources = [ "fuzz/oss_fuzz/FuzzIncrementalImage.cpp" ]
      deps = []
    }

    libfuzzer_app("sksl2glsl") {
      sources = [ "fuzz/oss_fuzz/FuzzSKSL2GLSL.cpp" ]
      deps = []
    }

    libfuzzer_app("sksl2metal") {
      sources = [ "fuzz/oss_fuzz/FuzzSKSL2Metal.cpp" ]
      deps = []
    }

    libfuzzer_app("sksl2pipeline") {
      sources = [ "fuzz/oss_fuzz/FuzzSKSL2Pipeline.cpp" ]
      deps = []
    }

    libfuzzer_app("sksl2spirv") {
      sources = [ "fuzz/oss_fuzz/FuzzSKSL2SPIRV.cpp" ]
      deps = []
    }

    libfuzzer_app("sksl2wgsl") {
      sources = [ "fuzz/oss_fuzz/FuzzSKSL2WGSL.cpp" ]
      deps = []
    }

    libfuzzer_app("skdescriptor_deserialize") {
      sources = [ "fuzz/oss_fuzz/FuzzSkDescriptorDeserialize.cpp" ]
      deps = []
    }

    libfuzzer_app("svg_dom") {
      sources = [ "fuzz/oss_fuzz/FuzzSVG.cpp" ]
      deps = [ "modules/svg" ]
    }

    libfuzzer_app("skruntimeblender") {
      sources = [ "fuzz/oss_fuzz/FuzzSkRuntimeBlender.cpp" ]
      deps = []
    }

    libfuzzer_app("skruntimecolorfilter") {
      sources = [ "fuzz/oss_fuzz/FuzzSkRuntimeColorFilter.cpp" ]
      deps = []
    }

    libfuzzer_app("skruntimeeffect") {
      sources = [ "fuzz/oss_fuzz/FuzzSkRuntimeEffect.cpp" ]
      deps = []
    }

    libfuzzer_app("skmeshspecification") {
      sources = [ "fuzz/oss_fuzz/FuzzSkMeshSpecification.cpp" ]
      deps = []
    }

    libfuzzer_app("skp") {
      sources = [ "fuzz/oss_fuzz/FuzzSKP.cpp" ]
      deps = []
    }

    libfuzzer_app("colrv1") {
      sources = [ "fuzz/oss_fuzz/FuzzCOLRv1.cpp" ]
      deps = []
    }

    libfuzzer_app("quad_roots") {
      sources = [
        "fuzz/FuzzQuadRoots.cpp",
        "fuzz/oss_fuzz/FuzzQuadRoots.cpp",
      ]
      deps = []
    }

    libfuzzer_app("cubic_roots") {
      sources = [
        "fuzz/FuzzCubicRoots.cpp",
        "fuzz/oss_fuzz/FuzzCubicRoots.cpp",
      ]
      deps = []
    }

    libfuzzer_app("skcolorspace") {
      sources = [ "fuzz/oss_fuzz/FuzzColorspace.cpp" ]
      deps = []
    }

    libfuzzer_app("parse_path") {
      sources = [ "fuzz/oss_fuzz/FuzzParsePath.cpp" ]
      deps = []
    }
  }
}

if (skia_build_rust_targets) {
  action("rust_hello_world") {
    script = "gn/bazel_build.py"
    sources = [ "experimental/rust_cxx/hello-world.rs" ]
    outputs = [ "$root_out_dir/rust_hello_world" ]
    args = [
      "//experimental/rust_cxx:rust_hello_world",
      "../../bazel-bin/experimental/rust_cxx/rust_hello_world",
    ]
  }

  action("cpp_with_rust") {
    script = "gn/bazel_build.py"
    sources = [
      "experimental/rust_cxx/hype-bridge.rs",
      "experimental/rust_cxx/main.cpp",
    ]
    outputs = [ "$root_out_dir/cpp_with_rust" ]
    args = [
      "//experimental/rust_cxx:cpp_with_rust",
      "../../bazel-bin/experimental/rust_cxx/cpp_with_rust",
    ]
  }
}