tree 8078a58d1ce1175995c18253a6d7f6c70bcd94b7
parent 1dc550fa7333257a130d71866be37181f8ee553b
author henry.uh_chen <henry.uh_chen@htc.com> 1404301016 +0800
committer Chen Henry <henry.uh_chen@htc.com> 1404381511 +0000

[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