diff options
Diffstat (limited to 'xorg-server/mi/mivaltree.c')
| -rw-r--r-- | xorg-server/mi/mivaltree.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/xorg-server/mi/mivaltree.c b/xorg-server/mi/mivaltree.c index 36ec8e60a..6db2633be 100644 --- a/xorg-server/mi/mivaltree.c +++ b/xorg-server/mi/mivaltree.c @@ -296,6 +296,9 @@ miComputeClips ( ((pParent->eventMask | wOtherEventMasks(pParent)) & VisibilityChangeMask))
SendVisibilityNotify(pParent);
+ if (pParent->valdata==UnmapValData)
+ return; // return if no valid valdata
+
dx = pParent->drawable.x - pParent->valdata->before.oldAbsCorner.x;
dy = pParent->drawable.y - pParent->valdata->before.oldAbsCorner.y;
@@ -779,9 +782,11 @@ miValidateTree ( RegionUninit(&childUnion);
}
- RegionNull(&pParent->valdata->after.exposed);
- RegionNull(&pParent->valdata->after.borderExposed);
-
+ if (pParent->valdata && pParent->valdata!=UnmapValData)
+ {
+ RegionNull(&pParent->valdata->after.exposed);
+ RegionNull(&pParent->valdata->after.borderExposed);
+ }
/*
* each case below is responsible for updating the
* clipList and serial number for the parent window
@@ -796,7 +801,8 @@ miValidateTree ( * exposures and obscures as per miComputeClips and reset the parent's
* clipList.
*/
- RegionSubtract(&pParent->valdata->after.exposed,
+ if (pParent->valdata && pParent->valdata!=UnmapValData)
+ RegionSubtract(&pParent->valdata->after.exposed,
&totalClip, &pParent->clipList);
/* fall through */
case VTMap:
|