[Mesa-dev] [PATCH] dri3: Support GLX_INTEL_swap_event

Keith Packard keithp at keithp.com
Mon Nov 25 14:44:02 PST 2013

Eric Anholt <eric at anholt.net> writes:

> I'd prefer to see sbc stay with its current name, since that's its name
> in the specs we're trying to implement (GLX_OML_sync_control,
> GLX_INTEL_swap_event).  If you drop the rename from the patch,
> Reviewed-by: Eric Anholt <eric at anholt.net>

Sounds good.

> I read that as "SBC is incremented when the PresentComplete comes in"
> not "SBC is incremented when we generate the Present request".
> Otherwise glXWaitForSbcOML doesn't make much sense. (in the "e.g." I'm
> assuming they're talking a hardware register for pageflipping that
> immediately starts scanning out the new stuff, not our fancy new
> automatically double buffered ones that you have to push hard on to get
> an immediate pageflip mode)

Oh, that's almost sensible. And nicely eliminates the silly sleep(1)
loop. New patches coming shortly.

keith.packard at intel.com
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