This function adds an alternate version of this surface, usually used for
content with high DPI representations like cursors or icons. The size,
format, and content do not need to match the original surface, and these
alternate versions will not be updated when the original surface changes.
This function adds a reference to the alternate version, so you should call
SDL_DestroySurface() on the image after this call.
Add an alternate version of a surface.
This function adds an alternate version of this surface, usually used for content with high DPI representations like cursors or icons. The size, format, and content do not need to match the original surface, and these alternate versions will not be updated when the original surface changes.
This function adds a reference to the alternate version, so you should call SDL_DestroySurface() on the image after this call.