From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
Subject: [Bug 35930] flickering in many OpenGL applications with
composition manager
Date: Sun, 22 May 2011 02:49:21 -0700 (PDT)
Message-ID: <20110522094923.67BC9130051@annarchy.freedesktop.org>
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https://bugs.freedesktop.org/show_bug.cgi?id=35930
--- Comment #17 from maximlevitsky-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org 2011-05-22 02:49:18 PDT ---
I understand that, but nouveau_dri2_finish_swap in DDX is called for both
window DRI buffers and scanout buffers.
It seem that DRI2CanFlip filters indeed only full screen buffers, but I don't
understand why it returns TRUE for all pixmaps.
Aren't pixmaps not on the screen at all?
Or it never called with pixmaps but only with windows.
As far as I understand it, from very old memories of tinkering with X windows
systems, pixmaps and windows are supposed to be interchangeable in X draw
calls, just windows can be displayed, while pixmaps are strictly of-screen and
can only be blitted to some window
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