| # Copyright 2019 Google LLC. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| if (!defined(is_skia_standalone)) { |
| is_skia_standalone = false |
| } |
| |
| is_skia_dev_build = is_skia_standalone && !is_official_build |
| |
| declare_args() { |
| skia_android_serial = "" |
| skia_compile_modules = false |
| skia_compile_sksl_tests = false |
| skia_dwritecore_sdk = "" |
| skia_enable_api_available_macro = true |
| skia_enable_android_utils = is_skia_dev_build |
| skia_enable_discrete_gpu = true |
| skia_enable_fontmgr_empty = false |
| skia_enable_fontmgr_fuchsia = is_fuchsia |
| skia_enable_fontmgr_win = is_win |
| skia_enable_gpu_debug_layers = is_skia_dev_build && is_debug |
| skia_enable_optimize_size = false |
| skia_enable_pdf = !is_wasm |
| skia_enable_precompile = true |
| skia_enable_skottie = !is_component_build |
| skia_enable_svg = !is_component_build |
| skia_enable_tools = is_skia_dev_build |
| skia_disable_tracing = is_official_build |
| skia_enable_vello_shaders = false |
| skia_disable_vma_stl_shared_mutex = false |
| skia_enable_winuwp = false |
| skia_generate_workarounds = false |
| skia_include_multiframe_procs = false |
| skia_lex = false |
| skia_print_sksl_shaders = false |
| skia_print_native_shaders = false |
| skia_tools_require_resources = false |
| skia_update_fuchsia_sdk = false |
| skia_use_angle = false |
| skia_use_client_icu = false |
| skia_use_dawn = false |
| skia_use_direct3d = false |
| skia_use_egl = false |
| skia_use_epoxy_egl = false |
| skia_use_expat = !is_wasm |
| skia_use_ffmpeg = false |
| skia_use_fixed_gamma_text = is_android |
| skia_use_fontconfig = is_linux |
| skia_use_fontations = false |
| skia_use_fonthost_mac = is_mac || is_ios |
| skia_use_freetype = is_android || is_fuchsia || is_linux || is_wasm |
| skia_use_harfbuzz = true |
| skia_use_gl = !is_fuchsia |
| skia_use_icu = !is_fuchsia |
| skia_use_icu4x = false |
| skia_use_jpeg_gainmaps = is_skia_dev_build |
| skia_use_libavif = false |
| skia_use_libgrapheme = false |
| skia_use_libheif = is_skia_dev_build |
| skia_use_libjpeg_turbo_decode = true |
| skia_use_libjpeg_turbo_encode = true |
| skia_use_no_jpeg_encode = false |
| skia_use_libjxl_decode = false |
| skia_use_libpng_decode = true |
| skia_use_libpng_encode = true |
| skia_use_no_png_encode = false |
| skia_use_libwebp_decode = true |
| skia_use_libwebp_encode = !is_wasm |
| skia_use_no_webp_encode = false |
| skia_use_lua = is_skia_dev_build && !is_ios |
| skia_use_metal = false |
| skia_use_ndk_images = is_android && defined(ndk_api) && ndk_api >= 30 |
| skia_use_perfetto = is_linux || is_mac || is_android |
| |
| # Currently only supported in Android framework |
| skia_android_framework_use_perfetto = false |
| skia_use_piex = !is_win && !is_wasm |
| skia_use_sfml = false |
| skia_use_webgl = is_wasm |
| skia_use_webgpu = is_wasm |
| skia_use_wuffs = true |
| skia_use_x11 = is_linux |
| skia_use_xps = true |
| |
| # Use the safe mode for libcxx |
| # See: https://libcxx.llvm.org/UsingLibcxx.html#enabling-the-safe-libc-mode |
| skia_use_safe_libcxx = false |
| |
| # deprecated, we will eventually use just skia_enable_ganesh |
| skia_enable_gpu = true |
| skia_enable_graphite = false |
| skia_use_zlib = true |
| |
| if (is_ios) { |
| skia_ios_identity = ".*Google.*" |
| skia_ios_profile = "Google Development" |
| |
| # should only code sign when running on a device, not the simulator |
| skia_ios_use_signing = !ios_use_simulator |
| } |
| |
| skia_build_rust_targets = false |
| } |
| |
| declare_args() { |
| skia_enable_ganesh = skia_enable_gpu |
| } |
| |
| declare_args() { |
| # This is now a no-op. TODO(kjlubick) remove after Flutter stops using this. |
| skia_enable_sksl_tracing = false |
| } |
| |
| declare_args() { |
| if (is_mac) { |
| skia_gl_standard = "gl" |
| } else if (is_ios) { |
| skia_gl_standard = "gles" |
| } else if (is_wasm && skia_enable_ganesh) { |
| skia_gl_standard = "webgl" |
| } else { |
| skia_gl_standard = "" |
| } |
| |
| if (is_fuchsia) { |
| skia_use_vulkan = true |
| } else { |
| skia_use_vulkan = false |
| } |
| |
| skia_build_fuzzers = is_clang && is_linux && target_cpu == "x64" |
| skia_use_libfuzzer_defaults = true |
| } |
| |
| declare_args() { |
| skia_enable_skunicode = skia_use_icu || skia_use_client_icu || |
| skia_use_libgrapheme || skia_use_icu4x |
| } |
| |
| if (skia_use_angle && skia_gl_standard != "gles") { |
| skia_gl_standard = "" |
| } |
| |
| declare_args() { |
| skia_pdf_subset_harfbuzz = skia_use_harfbuzz |
| } |
| |
| declare_args() { |
| skia_enable_fontmgr_android = skia_use_expat && skia_use_freetype |
| skia_enable_fontmgr_custom_directory = |
| skia_use_freetype && !is_fuchsia && !is_wasm |
| skia_enable_fontmgr_custom_embedded = skia_use_freetype && !is_fuchsia |
| skia_enable_fontmgr_custom_empty = skia_use_freetype && !is_wasm |
| skia_enable_fontmgr_fontconfig = skia_use_freetype && skia_use_fontconfig |
| skia_enable_fontmgr_win_gdi = is_win && !skia_enable_winuwp |
| skia_enable_fontmgr_FontConfigInterface = |
| skia_use_freetype && skia_use_fontconfig |
| skia_enable_spirv_validation = is_skia_dev_build && is_debug && !skia_use_dawn |
| skia_use_dng_sdk = |
| !is_fuchsia && !is_wasm && skia_use_libjpeg_turbo_decode && skia_use_zlib |
| skia_enable_vulkan_debug_layers = skia_enable_gpu_debug_layers |
| skia_enable_direct3d_debug_layer = skia_enable_gpu_debug_layers |
| skia_enable_metal_debug_info = skia_enable_gpu_debug_layers |
| skia_use_vma = skia_use_vulkan |
| skia_vulkan_memory_allocator_dir = |
| "//third_party/externals/vulkanmemoryallocator" |
| skia_build_for_debugger = false |
| |
| # icu_bidi sources |
| skia_icu_bidi_third_party_dir = "//third_party/icu_bidi" |
| |
| # libgrapheme sources |
| skia_libgrapheme_third_party_dir = "//third_party/libgrapheme" |
| } |
| |
| assert(!skia_use_dawn || skia_enable_graphite) # Dawn is Graphite-only |
| |
| # Our tools require static linking (they use non-exported symbols), and the Ganesh backend. |
| skia_enable_tools = |
| skia_enable_tools && !is_component_build && skia_enable_ganesh |
| |
| if (skia_enable_optimize_size) { |
| assert( |
| !is_debug, |
| "Must set is_debug to false for skia_enable_optimize_size to do anything. If you want to build with debug mode and the correct define, add extra_cflags=['-DSK_ENABLE_OPTIMIZE_SIZE'] to your GN args.") |
| } |
| |
| # Current Perfetto integrations are mutually exclusive |
| assert(!skia_use_perfetto || !skia_android_framework_use_perfetto) |
| |
| # Skia's targets may be built inside other gn build systems. |
| # Skia builds other project's build targets inside its build. |
| # This is easier if the built-in target types remain generic. |
| # Place Skia target specific configs in skia_target_default_configs. |
| # These will be applied by the 'skia_*' templates. |
| # In the Skia build these configs apply many warnings as errors. |
| # Other projects may optionally set these configs as they see fit. |
| template("skia_target") { |
| target(invoker._skia_target_type, target_name) { |
| # set_defaults(invoker._skia_target_type) might not exist or set configs |
| if (!defined(configs)) { |
| configs = [] |
| } |
| |
| # Explicit configs instead of set_defaults("skia_target") |
| # Allows template("skia_*") below to avoid the configs dance. |
| if (defined(skia_target_default_configs)) { |
| configs += skia_target_default_configs |
| } |
| |
| # "*" clobbers the current scope; append to existing configs |
| forward_variables_from(invoker, "*", [ "configs" ]) |
| if (defined(invoker.configs)) { |
| configs += invoker.configs |
| } |
| } |
| } |
| |
| template("skia_executable") { |
| skia_target(target_name) { |
| assert(!defined(configs), "No set_defaults(skia_target)") |
| _skia_target_type = "executable" |
| forward_variables_from(invoker, "*") |
| } |
| } |
| template("skia_source_set") { |
| skia_target(target_name) { |
| assert(!defined(configs), "No set_defaults(skia_target)") |
| _skia_target_type = "source_set" |
| forward_variables_from(invoker, "*") |
| } |
| } |
| template("skia_static_library") { |
| skia_target(target_name) { |
| assert(!defined(configs), "No set_defaults(skia_target)") |
| _skia_target_type = "static_library" |
| forward_variables_from(invoker, "*") |
| } |
| } |
| template("skia_shared_library") { |
| skia_target(target_name) { |
| assert(!defined(configs), "No set_defaults(skia_target)") |
| _skia_target_type = "shared_library" |
| forward_variables_from(invoker, "*") |
| } |
| } |
| template("skia_component") { |
| skia_target(target_name) { |
| assert(!defined(configs), "No set_defaults(skia_target)") |
| _skia_target_type = "component" |
| forward_variables_from(invoker, "*") |
| } |
| } |