am c894029a: am be29d82f: Merge "Correctly adjust clip regions that lie offscreen" into jb-mr1-dev

* commit 'c894029a8e398502c058c2f5332bfe75d4b01735':
  Correctly adjust clip regions that lie offscreen

1 files changed, 14 insertions, 3 deletions

diff --git a/libs/hwui/Caches.cpp b/libs/hwui/Caches.cpp
index d18a5b0..e7085b0 100644
--- a/libs/hwui/Caches.cpp
+++ b/libs/hwui/Caches.cpp
@@ -399,9 +399,20 @@ bool Caches::setScissor(GLint x, GLint y, GLint width, GLint height) {
     if (scissorEnabled && (x != mScissorX || y != mScissorY ||
             width != mScissorWidth || height != mScissorHeight)) {
 
-        if (x < 0) x = 0;
-        if (y < 0) y = 0;
-
+        if (x < 0) {
+            width += x;
+            x = 0;
+        }
+        if (y < 0) {
+            height += y;
+            y = 0;
+        }
+        if (width < 0) {
+            width = 0;
+        }
+        if (height < 0) {
+            height = 0;
+        }
         glScissor(x, y, width, height);
 
         mScissorX = x;