[SDL] Fullscreen slowdown with OpenGL on some Macs using SDL 1.3?
vern at actionsoft.com
Sat Jul 2 16:00:39 PDT 2011
Anyone else out there using SDL and OpenGL to do Mac games? If so, have you experienced problems with some users having much slower than normal frame rates when going fullscreen? About half of my beta testers are experiencing this. Yet it's only on specific systems.
The odd thing is that even on the affected systems, switching to windowed and back to fullscreen several times resolves the issue -- it then runs normal speed when fullscreen.
The SDL demo testgl2 replicates this slowdown on the affected machines too, if you modify it to go fullscreen. Windowed, it'll get frame rates in the thousands, but fullscreen, it'll be about 30fps on the affected systems. This is not due to the higher resolution. Something else strange is going on.
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