Method LoadCubeMapMipmapsHDR

Source/Graphics/textures.cpp:457–486

}

TextureRef Textures::LoadCubeMapMipmapsHDR(const char* filename) {
    TextureRef tex;
    FILE* cache_file = my_fopen(filename, "rb");
    if (cache_file) {
        int version;
        fread(&version, sizeof(int), 1, cache_file);
        if (version == kCubeMapHDRVersion) {
            int size, width;
            fread(&size, sizeof(int), 1, cache_file);
            fread(&width, sizeof(int), 1, cache_file);
            float* data = (float*)alloc.stack.Alloc(sizeof(float) * size);
            fread(&data[0], sizeof(float), size, cache_file);
            fclose(cache_file);
            tex = Textures::Instance()->makeCubemapTexture(128, 128, GL_RGBA16F, GL_RGBA, Textures::MIPMAPS);
            Textures::Instance()->SetTextureName(tex, filename);
            int mip_level = 0;
            int index = 0;
            while (width > 1) {
                for (int i = 0; i < 6; i++) {
                    glTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, mip_level, 0, 0, width, width, GL_BGRA, GL_FLOAT, &data[index]);
                    index += width * width * 4;
                }
                ++mip_level;
                width /= 2;
            }
            alloc.stack.Free(data);
        }
    }
    return tex;
}

void Texture::Init() {
    width = 0;