commit b77c94a96abeeecf65c5b3292db679c049af6271
author Matt Sarett <msarett@google.com> Wed Dec 07 12:22:37 2016 -0500
committer Matt Sarett <msarett@google.com> Tue Feb 14 14:39:00 2017 -0500
tree 96eb21220164a274d141bde7bffc0921c6213473
parent fd9d0ee9f82e2e224e14b05b6c8485670e46bd97

Disable buffer age swap behavior for SkiaGL on Adreno gpus

Test: Verified that this fixes rendering bugs.

BUG:31957043
Change-Id: I3e5bca73eae2d917906658f76d8c432dbb248d89

libs/hwui/renderthread/EglManager.cpp

diff --git a/libs/hwui/renderthread/EglManager.cpp b/libs/hwui/renderthread/EglManager.cpp
index 7020be0..860725b 100644
--- a/libs/hwui/renderthread/EglManager.cpp
+++ b/libs/hwui/renderthread/EglManager.cpp
@@ -106,7 +106,10 @@
 
     // Now that extensions are loaded, pick a swap behavior
     if (Properties::enablePartialUpdates) {
-        if (Properties::useBufferAge && EglExtensions.bufferAge) {
+        // An Adreno driver bug is causing rendering problems for SkiaGL with
+        // buffer age swap behavior (b/31957043).  To temporarily workaround,
+        // we will use preserved swap behavior.
+        if (Properties::useBufferAge && EglExtensions.bufferAge && !Properties::isSkiaEnabled()) {
             mSwapBehavior = SwapBehavior::BufferAge;
         } else {
             mSwapBehavior = SwapBehavior::Preserved;