Enhancements for Render composite request

Barry Scott barry.scott at onelan.co.uk
Mon Sep 7 02:17:57 PDT 2009

Keith Packard wrote:
> On Fri, 2009-09-04 at 14:23 +0100, Barry Scott wrote:
>> Then you need to ensure that when the compositor does its
>> tear free write other OpenGL and X11 apps do not stale until
>> the tear free write completes.
> The trouble is that the 'easy' way to do tear-free rendering is to stick
> a 'stall' into the command queue just before the blt, which leaves the
> entire rendering engine idle. We have theories about how we can avoid
> this, but nothing has come of them.
> -keith
Does the intel GPU allow for parallel processing? Is that what the graphics


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