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randr: Use RRTransformEqual in RRCrtcPendingTransform

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Currently, RRCrtcPendingTransform returns false unless the
transformation matrix itself is changing. This makes RRCrtcSet skip
doing anything if the only thing that is changing is the transform
filter.

There's already a function for comparing RRTransformPtrs, so use that
instead.

Tested by running

  xrandr --output DP-1 --mode 1920x1080 --rate 144 --scale 0.5x0.5 --filter nearest

follwed by

  xrandr --output DP-1 --mode 1920x1080 --rate 144 --scale 0.5x0.5 --filter bilinear

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
(cherry picked from commit 091af80be4)
This commit is contained in:
Aaron Plattner 2017-06-15 14:28:27 -07:00 committed by Adam Jackson
parent ed8fbabaca
commit 358f0bcd4f
1 changed files with 2 additions and 3 deletions
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5
randr/rrcrtc.c
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@ -843,9 +843,8 @@ RRCrtcGetTransform(RRCrtcPtr crtc)
Bool
RRCrtcPendingTransform(RRCrtcPtr crtc)
{
return memcmp(&crtc->client_current_transform.transform,
&crtc->client_pending_transform.transform,
sizeof(PictTransform)) != 0;
return !RRTransformEqual(&crtc->client_current_transform,
&crtc->client_pending_transform);
}
/*