[Xorg] X on OpenGL
idr at us.ibm.com
Sun Jul 11 10:31:54 PDT 2004
Soeren Sandmann wrote:
> - vblank notification
> OpenGL doesn't deal with this at all. Applications will want a Sync
> counter to block on. To do that the server needs to be notified when
> vblank starts. Ideally it would be possible to get notifications when
> the beam reaches a given scanline.
There are OpenGL extensions to support this functionality, and several
of the open-source drivers support some of them. See the following:
If they don't cover all the functionality that apps need, we can define
our own extensions that do.
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