[PATCH 2/2] damageext: Xineramify (v4)

Keith Packard keithp at keithp.com
Wed Oct 9 13:02:58 PDT 2013

Adam Jackson <ajax at redhat.com> writes:

> Well, no, but it could never matter.  The per-screen reports are already
> clipped to their respective borderClips (which, as noted, are clipped to
> their containing root), and then I'm unioning them all together on
> screen 0's DamagePtr.  The union of per-root-window borderClips can't
> exceed the Xinerama view of the border clip by definition.

Oh, so screen 0 contains all of the damage. Do internal Damage users
handle this OK? Or are you reporting out per-physical-screen damage to
them and only tracking this union damage for applications?

> Doing it in Subtract seems both much simpler and much saner than trying
> to wrap configuraton changes, yeah.

Cool. Retains the current (slightly mystic) semantics, which always
seems safest.

keith.packard at intel.com
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