Is there a difference between RLE_ACCEL when se t in SDL_SetAlpha versus SDL_SetColorKey

SDL supports two mechanisms to set RLE_ACCEL on a SDL_Surface, SDL_SetAlpha and
SDL_SetColorKey. Is there a difference between setting RLE_ACCEL using
SDL_SetAlpha versus setting RLE_ACCEL using SDL_SetColorKey?

Thanks,

  • Luke