commit 6d4d0db312fa8a9fce629dd92aa133c6f8249cf8
author John Reck <jreck@google.com> Mon Aug 03 15:34:52 2015 -0700
committer John Reck <jreck@google.com> Mon Aug 03 22:47:49 2015 +0000
tree dd6fe51ff86aaf5e281d57cd36011c1f3873e35c
parent 0faca96f939b8530e5387a30e317d852f39f689f

Disable skipping frames on empty damage

Bug: 22592975

Optimization added in MNC is not quite correct, occasionally
it will fail to repaint when it was supposed to leading
to buffer corruption. Disable the optimization for now.

Change-Id: I34dfdfb357eda298198043ded7335d4588a003fd

libs/hwui/renderthread/CanvasContext.cpp

diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index e472e93..6dfb6e8 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -229,10 +229,11 @@
     SkRect dirty;
     mDamageAccumulator.finish(&dirty);
 
-    if (dirty.isEmpty() && Properties::skipEmptyFrames) {
-        mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame);
-        return;
-    }
+    // TODO: Re-enable after figuring out cause of b/22592975
+//    if (dirty.isEmpty() && Properties::skipEmptyFrames) {
+//        mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame);
+//        return;
+//    }
 
     mCurrentFrameInfo->markIssueDrawCommandsStart();