[SDL] Low hw framerates

Derethor derethor at thepentagon.com
Thu Jan 11 01:13:41 PST 2001


> >I have a simple app blitting two sprites to a 640x480x16 display.  In
> >windowed mode it runs on a software surface (even though i try to set it
> >to a hwsurface) but get ~120fps.  Running fullscreen, it has a hardware
> >surface bug gets only 74 fps.  Is this normal?  All sprites have been
> >converted with DisplayFormat().
> 
> my guess is that you call SDL_Flip() and this synchs to vertical refresh
> in fullscreen mode, and you have a vertical frequency of about 74 Hz.
> It's a feature :)

 ups, this answers me a lot of questions! thanks!

-- 
signed
          derethor of centolos




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