[SDL] Bug in SDL_Overlay for Win32

Sam Lantinga slouken at devolution.com
Wed Aug 8 22:50:01 PDT 2001


> I believe I've encountered a bug in the SDL_Overlay implementation for
> Windows.  I've put together a small test program which demonstrates this
> bug.  The test program can be downloaded at

> http://www.xmission.com/~redflame/sdl_overlay_bug.zip


> The zip file has the information concerning the bug.  In a nutshell, the
> test program attempts to display two overlays in rapid succession,
> alternating back and forth.  In linux, and in windows with no
> acceleration, it works as expected.  But with acceleration enabled, only
> one overlay is displayed, and it just kind of sits there, frozen on the
> screen.  Perhaps I am using SDL_Overlay wrong, but to my knowledge I've
> followed the API specifications properly..

Hmm, SDL only supports one hardware accelerated overlay at a time.

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




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