Method Cook

modules/tools/texture_compiler/src/texture_compiler.cpp:67–121

}

bool STextureCooker::Cook(SCookContext *ctx)
{
    const auto outputPath = ctx->GetOutputPath();
    auto uncompressed = ctx->Import<skr_uncompressed_render_texture_t>();
    SKR_DEFER({ ctx->Destroy(uncompressed); });
    
    // try decode texture & calculate compressed format
    const auto decoder = uncompressed->decoder;
    const auto format = decoder->get_color_format();
    ECGPUFormat compressed_format = CGPU_FORMAT_UNDEFINED;
    switch (format) // TODO: format shuffle
    {
        case IMAGE_CODER_COLOR_FORMAT_Gray: 
        case IMAGE_CODER_COLOR_FORMAT_GrayF:
            compressed_format = CGPU_FORMAT_DXBC4_UNORM; 
            break;
        case IMAGE_CODER_COLOR_FORMAT_RGBA:
        default:
            compressed_format = CGPU_FORMAT_DXBC3_UNORM; 
            break;
    }
    // DXT
    skr::Vector<uint8_t> compressed_data;
    {
        SkrZoneScopedN("DXTCompress");
        compressed_data = Util_DXTCompressWithImageCoder(decoder, compressed_format);
    }
    // TODO: ASTC
    // write texture resource
    skr_texture_resource_t resource;
    resource.format = compressed_format;
    resource.mips_count = 1;
    resource.data_size = compressed_data.size();
    resource.height = decoder->get_height();
    resource.width = decoder->get_width();
    resource.depth = 1;
    {
        SkrZoneScopedN("SaveToCtx");
        if(!ctx->Save(resource))
            return false;
    }
    // write compressed files
    {
        SkrZoneScopedN("SaveToDisk");

        auto extension = Util_CompressedTypeString(compressed_format);
        auto compressed_path = outputPath;
        compressed_path.replace_extension(extension.c_str());
        auto compressed_pathstr = compressed_path.string();
        auto compressed_file = fopen(compressed_pathstr.c_str(), "wb");
        SKR_DEFER({ fclose(compressed_file); });
        fwrite(compressed_data.data(), compressed_data.size(), 1, compressed_file);
    }
    return true;
}

uint32_t STextureCooker::Version()
{