commit 02806288d1c56475413888a934c796e6e4eb11c5
author Chris Craik <ccraik@google.com> Fri Mar 11 19:16:21 2016 -0800
committer Chris Craik <ccraik@google.com> Mon Mar 14 13:26:25 2016 -0700
tree 837197b3b31a6d43ed61c141fa4b3a288d9c5a0b
parent 481355a45df5a8e5c57b1058f48cb1102b05ebc0

Fix flickering when layers resize in-place

bug:27248275
Change-Id: Ia11c93ebc1097f3735071204b6f14ca079bb9fc4

libs/hwui/renderstate/OffscreenBufferPool.cpp

diff --git a/libs/hwui/renderstate/OffscreenBufferPool.cpp b/libs/hwui/renderstate/OffscreenBufferPool.cpp
index 5f984b5..bb1a044 100644
--- a/libs/hwui/renderstate/OffscreenBufferPool.cpp
+++ b/libs/hwui/renderstate/OffscreenBufferPool.cpp
@@ -164,6 +164,9 @@
         // resize in place
         layer->viewportWidth = width;
         layer->viewportHeight = height;
+
+        // entire area will be repainted (and may be smaller) so clear usage region
+        layer->region.clear();
         return layer;
     }
     putOrDelete(layer);