Perform a fast blit from the source surface to the destination surface.
Defined in SDL_surface.h
int SDL_UpperBlit
const SDL_Rect * srcrect,
(SDL_Surface * src, SDL_Surface * dst, SDL_Rect * dstrect);
SDL_UpperBlit() has been replaced by SDL_BlitSurface(), which is merely a macro for this function with a less confusing name.
This function is available since SDL 2.0.0.