tree 372fa7c145944cfe278e850a27c5a97f952c3236
parent 2ec466b284340921eb0ca604834a7c019335add2
author Mika Isojärvi <misojarvi@google.com> 1426279124 -0700
committer Mika Isojärvi <misojarvi@google.com> 1426279557 -0700

Fix reference context when clearing empty area.

Reference context clear*() calls were crashing on assert when target rectangle
width or height was zero after applying scissor and viewport. Reference context
now skips clears when target area size is zero.

Bug: 19695755
Change-Id: I10e98fbbb8db0e099c039ecd583d6f5bb81af626