commit 20adb6ce4d52b15472e7e5ee953e06cc349a827c
author henry.uh_chen <henry.uh_chen@htc.com> Wed Jul 02 19:36:56 2014 +0800
committer Chen Henry <henry.uh_chen@htc.com> Thu Jul 03 09:58:31 2014 +0000
tree 8078a58d1ce1175995c18253a6d7f6c70bcd94b7
parent 1dc550fa7333257a130d71866be37181f8ee553b

[HWUI]: fix residual line on FrameBuffer

Symptom: If app applies animation to enlarge a bitmap, there will be an residual
         line on the screen

Root Cause: On platform which has Tile Rendering implementation (ex. Qualcomm
            CPU), startTiling() call will restrict the framebuffer region which
            GPU can affect. So the expansion of clear region by 1 will not take
            effect if startTiling region is not expanded.

Solution: Expand the startTiling region by 1, too.

Reproduce steps: Apply animation to enlarge (and then shrink) a bitmap icon.

Change-Id: I7b4a59e180daa29dbe909d9e11f4093ae1d7396f

libs/hwui/OpenGLRenderer.h

diff --git a/libs/hwui/OpenGLRenderer.h b/libs/hwui/OpenGLRenderer.h
old mode 100644
new mode 100755
index 9afb7ad..2e03a1b
--- a/libs/hwui/OpenGLRenderer.h
+++ b/libs/hwui/OpenGLRenderer.h
@@ -587,14 +587,14 @@
      * This method needs to be invoked every time getTargetFbo() is
      * bound again.
      */
-    void startTiling(const sp<Snapshot>& snapshot, bool opaque = false);
+    void startTiling(const sp<Snapshot>& snapshot, bool opaque = false, bool expand = false);
 
     /**
      * Tells the GPU what part of the screen is about to be redrawn.
      * This method needs to be invoked every time getTargetFbo() is
      * bound again.
      */
-    void startTiling(const Rect& clip, int windowHeight, bool opaque = false);
+    void startTiling(const Rect& clip, int windowHeight, bool opaque = false, bool expand = false);
 
     /**
      * Tells the GPU that we are done drawing the frame or that we