1@ cdecl fetch_2d_texel_rgba_dxt1(long ptr long long ptr) 2@ cdecl fetch_2d_texel_rgba_dxt3(long ptr long long ptr) 3@ cdecl fetch_2d_texel_rgba_dxt5(long ptr long long ptr) 4@ cdecl tx_compress_dxtn(long long long ptr long ptr long) 5