把JPG/BMP图片转换位RGB565格式, 这是为了DX应用的方便(16位色), 也可以用于LINUX的帧缓存(16位色) 附带转换程序+图片查看 -put JPG / BMP photo-conversion RGB565 format, which is to facilitate the application of DX (16 colors), which could also be used in the Linux fr a me buffer (16 colors) fring