SDL_FreeSurface - Frees (deletes) a SDL_Surface
#include "SDL.h"
void SDL_FreeSurface(SDL_Surface *surface);
Frees the resources used by a previously created SDL_Surface. If the
surface was created using SDL_CreateRGBSurfaceFrom then the pixel data
is not freed.
SDL_CreateRGBSurface SDL_CreateRGBSurfaceFrom