[SDL] SDL_BlitSurface with src==dst

Sam Lantinga slouken at devolution.com
Wed Jul 31 21:09:01 PDT 2002


> Hi,

> Is it save to use SDL_BlitSurface (SDL 1.2) with equal source and
> destination surfaces? "Save" means that if the source and destination
> rectangle overlapp then that part of the source that would be overwritten
> is copied first, so I don't get garbage on the screen. I tested it on
> Win2k and it seems to work fine, but can I be sure that it works with
> other versions/platforms as well?

It should work fine.  If it doesn't, it's a bug.

See ya!
	-Sam Lantinga, Software Engineer, Blizzard Entertainment




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