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defines.bzl
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defines.bzl
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"""
This file contains defines used by all builds of Skia.
"""
load("//bazel:extra_defines.bzl", "EXTRA_DEFINES")
load("//bazel:skia_rules.bzl", "select_multi")
GENERAL_DEFINES = [
"SK_GAMMA_APPLY_TO_A8",
"SK_DEFAULT_TYPEFACE_IS_EMPTY",
"SK_DISABLE_LEGACY_DEFAULT_TYPEFACE",
] + select({
"//bazel/common_config_settings:debug_build": [
"SK_DEBUG",
],
"//bazel/common_config_settings:release_build": [
"SK_RELEASE",
"NDEBUG",
],
"//bazel/common_config_settings:fast_build": [
"SK_DEBUG",
],
}) + select({
"//bazel/common_config_settings:enable_tracing_false": ["SK_DISABLE_TRACING"],
"//conditions:default": [],
}) + select({
"//bazel/common_config_settings:enable_effect_serialization_false": ["SK_DISABLE_EFFECT_DESERIALIZATION"],
"//conditions:default": [],
}) + select({
"//src/gpu:enable_gpu_test_utils_true": [
"GR_TEST_UTILS=1",
"SK_ALLOW_STATIC_GLOBAL_INITIALIZERS=1",
],
"//conditions:default": [],
}) + select({
"//src/sksl:enable_skslc_true": [
"SKSL_STANDALONE",
"SK_DISABLE_TRACING",
"SK_ENABLE_SPIRV_CROSS",
"SK_ENABLE_SPIRV_VALIDATION",
"SK_ENABLE_WGSL_VALIDATION",
],
"//conditions:default": [],
}) + select({
"//src/sksl:enable_sksl_tracing_true": ["SKSL_ENABLE_TRACING"],
"//conditions:default": [],
}) + select({
"//src/pdf:enable_pdf_backend_true": ["SK_SUPPORT_PDF"],
"//conditions:default": [],
}) + select({
"//src/shaders:legacy_shader_context_true": [], # This is the default in SkTypes.h
"//src/shaders:legacy_shader_context_false": ["SK_DISABLE_LEGACY_SHADERCONTEXT"],
}) + select({
"//src/lazy:enable_discardable_memory_true": ["SK_USE_DISCARDABLE_SCALEDIMAGECACHE"],
"//src/lazy:enable_discardable_memory_false": [],
}) + select({
"//bazel/common_config_settings:build_for_debugger_true": ["SK_BUILD_FOR_DEBUGGER"],
"//conditions:default": [],
})
GPU_DEFINES = select_multi({
"//src/gpu:gl_ganesh": [
"SK_GL",
"SK_GANESH",
],
"//src/gpu:vulkan_ganesh": [
"SK_VULKAN",
"SK_GANESH",
],
"//src/gpu:metal_ganesh": [
"SK_METAL",
"SK_GANESH",
],
}) + select({
"//src/gpu:gl_standard": [
"SK_ASSUME_GL=1",
],
"//src/gpu:gles_standard": [
"SK_ASSUME_GL_ES=1",
],
"//src/gpu:webgl_standard": [
"SK_ASSUME_WEBGL=1",
"SK_USE_WEBGL",
],
"//conditions:default": [],
}) + select({
"//src/gpu:vulkan_with_vma": [
"SK_USE_VMA",
],
"//conditions:default": [],
})
CODEC_DEFINES = select_multi({
"//src/codec:avif_decode_codec": ["SK_CODEC_DECODES_AVIF"],
"//src/codec:gif_decode_codec": ["SK_HAS_WUFFS_LIBRARY"],
"//src/codec:jpeg_decode_codec": ["SK_CODEC_DECODES_JPEG"],
"//src/codec:png_decode_codec": ["SK_CODEC_DECODES_PNG"],
"//src/codec:raw_decode_codec": [
"SK_CODEC_DECODES_RAW",
"SK_CODEC_DECODES_JPEG",
],
"//src/codec:webp_decode_codec": ["SK_CODEC_DECODES_WEBP"],
})
TYPEFACE_DEFINES = select_multi(
{
"//src/ports:uses_freetype": ["SK_TYPEFACE_FACTORY_FREETYPE"],
#TODO: others when they become available
},
)
PLATFORM_DEFINES = select({
"//bazel/common_config_settings:cpu_wasm": [
# working around https://github.com/emscripten-core/emscripten/issues/10072
"SK_FORCE_8_BYTE_ALIGNMENT",
"SK_FORCE_AAA",
],
"//conditions:default": [],
}) + select({
"//bazel/platform:trivial_abi": ["SK_TRIVIAL_ABI=[[clang::trivial_abi]]"],
"//bazel/common_config_settings:cpu_wasm": ["SK_TRIVIAL_ABI=[[clang::trivial_abi]]"],
"//conditions:default": [],
})
# Skia's public headers can work with any version of a Vulkan header. When compiling Skia internals,
# we want to use the Vulkan headers in //include/third_party/vulkan, so we set this define only when
# building the library but not exporting it for clients, so they can use whatever vulkan they want.
GENERAL_LOCAL_DEFINES = ["SKIA_IMPLEMENTATION=1"]
DEFAULT_DEFINES = GENERAL_DEFINES + GPU_DEFINES + CODEC_DEFINES + TYPEFACE_DEFINES + PLATFORM_DEFINES + EXTRA_DEFINES
DEFAULT_LOCAL_DEFINES = GENERAL_LOCAL_DEFINES