[SDL] problem with SDL_SwapBuffers()

[Mikael Eriksson]

On Tue, Jun 27, 2006 at 12:57:28PM +0200, Davide M3xican Coppola wrote:
> Hi,
> 
> I have a problem with SDL_SwapBuffers() in a SDL/GL game,
> this function requires about 9~10 ms. with a resolution of 800x600
> and 15~16 ms. with a resolution of 1024x768, but I have tested
> other SDL/GL programs/games (Nehe demos, Supertux, etc...) and
> usually it requires 1~5 ms. with these resolutions.
> 
> Does someone knows a possible cause that can generate this problem?

I think opengl only renders when it needs to. Try calling glFinish()
before SDL_SwapBuffers() and check if it's faster.
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