sdl_freesurface(3) - Linux man page
Name
SDL_FreeSurface - Frees (deletes) a SDL_SurfaceSynopsis
#include "SDL.h"
void SDL_FreeSurface(SDL_Surface *surface);
Description
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.
See Also
SDL_CreateRGBSurface SDL_CreateRGBSurfaceFrom