Enhancements for Render composite request

[Keith Packard]

On Tue, 2009-08-25 at 10:43 -0700, Jesse Barnes wrote:

> Avoiding tearing is the most important thing here, but if you're
> writing a media app you'd probably want to be able to specify an
> interval, e.g. never swap more than N frames/second.  Assuming you can
> find a mode that's a multiple of the framerate you want, this is a
> handy feature.  Check out the SGI_swap_control and OML_sync_control
> extensions for more details on what GL expects (OML adds a few more
> features like a swap counts, swaps on specific frame counts, etc.).

SGI_swap_control looks trivial enough, but OML_sync_control looks
insane. Suggestions on what is actually useful would be welcome here. Or
do we just implement all of OML_sync_control and use that for DRI2
swapping as well?

-- 
keith.packard at intel.com
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