BGRA is and always has been the fastest format to use. (There are some cases where RGBA is OK, and usually BGR is better than RGB, but in general, BGRA is the safest mode.

• BGRA是所有色彩格式里面性能最好的。（在某些情况下RGBA也不错，但通常用BGR都要比RGB好，BGRA是最稳妥的选择）。