commit 51dcd581b1fb1bcea7cac9b969123abda13e34ab
author Jamie Gennis <jgennis@google.com> Thu May 10 14:37:14 2012 -0700
committer Jamie Gennis <jgennis@google.com> Thu May 10 15:35:56 2012 -0700
tree 129d712236d41ead71d5e8c81cef09984361c242
parent cd1806e210f2633423f0fb14d39fa00d03974223

SurfaceFlinger: recompute visible regions more

This change makes a change in the crop, scaling mode, transform, or buffer
dimensions trigger a recomputation of the visible regions of a window.  With
the new cropping behavior for SCALING_MODE_FREEZE all of these can now affect
the visible region.

Bug: 6470541
Change-Id: I1904e47efbd708e28bf189f637d24dbef65cd41e

services/surfaceflinger/Layer.cpp

diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index e936188..6bc80ee 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -541,6 +541,7 @@
             mCurrentTransform = transform;
             mCurrentScalingMode = scalingMode;
             mFlinger->invalidateHwcGeometry();
+            recomputeVisibleRegions = true;
         }
 
         uint32_t bufWidth  = mActiveBuffer->getWidth();
@@ -549,6 +550,7 @@
             if (bufWidth != uint32_t(oldActiveBuffer->width) ||
                 bufHeight != uint32_t(oldActiveBuffer->height)) {
                 mFlinger->invalidateHwcGeometry();
+                recomputeVisibleRegions = true;
             }
         }