Android/frameworks_base
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix [1947273] the DimLayer causes the whole screen to update during transactions

Browse Source
This commit is contained in:
Mathias Agopian
2009-06-28 02:54:16 -07:00
parent 8c9687ae29
commit 0aed7e97a3
1 changed files with 6 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
libs/surfaceflinger/SurfaceFlinger.cpp
View File

@@ -725,10 +725,11 @@ void SurfaceFlinger::computeVisibleRegions(
dirty.orSelf(layer->visibleRegionScreen);
layer->contentDirty = false;
} else {
// compute the exposed region
// dirty = what's visible now - what's wasn't covered before
// = what's visible now & what's was covered before
dirty = visibleRegion.intersect(layer->coveredRegionScreen);
/* compute the exposed region:
* exposed = what's VISIBLE and NOT COVERED now
* but was COVERED before
*/
dirty = (visibleRegion - coveredRegion) & layer->coveredRegionScreen;
}
dirty.subtractSelf(aboveOpaqueLayers);
@@ -737,7 +738,7 @@ void SurfaceFlinger::computeVisibleRegions(
// Update aboveOpaqueLayers/aboveCoveredLayers for next (lower) layer
aboveOpaqueLayers.orSelf(opaqueRegion);
aboveCoveredLayers.orSelf(bounds);
aboveCoveredLayers.orSelf(visibleRegion);
// Store the visible region is screen space
layer->setVisibleRegion(visibleRegion);