load("//bazel:macros.bzl", "select_multi")

GENERAL_DEFINES = ["SK_HAS_ANDROID_CODEC"] + select({
    "//bazel/common_config_settings:debug_build": [
        "SK_DEBUG",
    ],
    "//bazel/common_config_settings:release_build": [
        "SK_RELEASE",
    ],
    "//conditions:default": [
        "SK_RELEASE",
    ],
})

GPU_DEFINES = select({
    "//bazel/common_config_settings:gl_backend": [
        "SK_GL",
        "SK_SUPPORT_GPU=1",
    ],
    "//bazel/common_config_settings:vulkan_backend": [
        "SK_VULKAN",
        "SK_SUPPORT_GPU=1",
    ],
    "//conditions:default": [
        "SK_SUPPORT_GPU=0",
    ],
}) + select({
    "//bazel/common_config_settings:gl_standard": [
        "SK_ASSUME_GL=1",
    ],
    "//bazel/common_config_settings:gles_standard": [
        "SK_ASSUME_GL_ES=1",
    ],
    "//bazel/common_config_settings:webgl_standard": [
        "SK_ASSUME_WEBGL=1",
        "SK_USE_WEBGL",
    ],
    "//conditions:default": [],
})

CODEC_DEFINES = select_multi(
    {
        "//bazel/common_config_settings:gif_decode_codec": ["SK_HAS_WUFFS_LIBRARY"],
        "//bazel/common_config_settings:jpeg_decode_codec": ["SK_CODEC_DECODES_JPEG"],
        "//bazel/common_config_settings:jpeg_encode_codec": ["SK_ENCODE_JPEG"],
        "//bazel/common_config_settings:png_decode_codec": ["SK_CODEC_DECODES_PNG"],
        "//bazel/common_config_settings:png_encode_codec": ["SK_ENCODE_PNG"],
        "//bazel/common_config_settings:raw_decode_codec": [
            "SK_CODEC_DECODES_RAW",
            "SK_CODEC_DECODES_JPEG",
        ],
        "//bazel/common_config_settings:webp_decode_codec": ["SK_CODEC_DECODES_WEBP"],
    },
    default = [],
)

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_DISABLE_LEGACY_SHADERCONTEXT",
    ],
    "//conditions:default": [],
})

cc_library(
    name = "defines_from_flags",
    defines = GENERAL_DEFINES + GPU_DEFINES + CODEC_DEFINES + PLATFORM_DEFINES,
    visibility = ["//:__subpackages__"],
)