Windowed or Fullscreen in DD?

L

luangm

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Joined
Jan 17, 2004
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3
Hi,
I'm just trying to test the capability of windowed and fullscreened apps, I heared that a back buffered Flip mechanism can really speed up the thing(flip is faster than blit???) but in the test program I'm only getting about 60fps, where if I use windowed, I got 250fps.

Any explainations?
Thanks!
 
Sounds like it's a clipping issue. Make sure only the primary surface has a clipper, not both the primary and secondary. Also check your code between the two and see if you accidently added something extra to the fullscreen version.
 
Your full screen app is set to vsync, while your windowed app is not. The 60 fps is determined by your monitor's refresh rate, presumably 60 hz.

Make sure the PresentParameters.PresentationInterval is the same for both progs.
 
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