[PATCH 4/4] EXA: Restrict the regions that need to be migrated for composite fallback for src / mask pictures.

[Maarten Maathuis]

Acked-by: Maarten Maathuis <madman2003 at gmail.com>

2009/12/28 Michel Dänzer <michel at daenzer.net>:
> On Mon, 2009-12-28 at 16:05 +0100, Maarten Maathuis wrote:
>> 2009/12/28 Michel Dänzer <michel at daenzer.net>:
>> > On Mon, 2009-12-28 at 13:51 +0100, Maarten Maathuis wrote:
>> >>
>> >> I don't quite get why this has to be in ExaScreenPrivRec, it seems to
>> >> be only used in one function.
>> >
>> > It allows using the swap() macro. I agree it's not strictly necessary,
>> > but frankly I don't see the big deal.
>>
>> I meant the stuff below, sorry if that was unclear.
>
> The source and mask regions are used in two functions,
> ExaPrepareCompositeReg() and ExaSrcValidate(). The latter is called by
> the former via miComputeCompositeRegion(), so there has to be some kind
> of EXA specific communications channel between the two. Thomas
> originally added a RegionRec to the pixmap private, but that would
> indeed waste memory, as at most two RegionRecs are needed at any time.
>
>
> --
> Earthling Michel Dänzer           |                http://www.vmware.com
> Libre software enthusiast         |          Debian, X and DRI developer
>