Don't apply AA to rects with no rotation/perspective.

Change-Id: I21138d4d0589cc28f1dcffb8b675cd81a9900e24

3 files changed, 7 insertions, 3 deletions

diff --git a/libs/hwui/Matrix.cpp b/libs/hwui/Matrix.cpp
index e7c0fe3..9fc5131 100644
--- a/libs/hwui/Matrix.cpp
+++ b/libs/hwui/Matrix.cpp
@@ -67,6 +67,10 @@ bool Matrix4::isPureTranslate() {
             ALMOST_EQUAL(data[kScaleX], 1.0f) && ALMOST_EQUAL(data[kScaleY], 1.0f);
 }
 
+bool Matrix4::isSimple() {
+    return mSimpleMatrix;
+}
+
 void Matrix4::load(const float* v) {
     memcpy(data, v, sizeof(data));
     mSimpleMatrix = false;
diff --git a/libs/hwui/Matrix.h b/libs/hwui/Matrix.h
index 08f5d77..2fa6ab7 100644
--- a/libs/hwui/Matrix.h
+++ b/libs/hwui/Matrix.h
@@ -111,6 +111,7 @@ public:
     }
 
     bool isPureTranslate();
+    bool isSimple();
 
     bool changesBounds();
 
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 8558054..6c9c0eb 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -1478,8 +1478,7 @@ void OpenGLRenderer::drawPatch(SkBitmap* bitmap, const int32_t* xDivs, const int
  * within that boundary region and how far into the region it is.
  */
 void OpenGLRenderer::drawAARect(float left, float top, float right, float bottom,
-        int color, SkXfermode::Mode mode)
-{
+        int color, SkXfermode::Mode mode) {
     float inverseScaleX = 1.0f;
     float inverseScaleY = 1.0f;
     // The quad that we use needs to account for scaling.
@@ -1935,7 +1934,7 @@ void OpenGLRenderer::drawRect(float left, float top, float right, float bottom,
     }
 
     int color = p->getColor();
-    if (p->isAntiAlias()) {
+    if (p->isAntiAlias() && !mSnapshot->transform->isSimple()) {
         drawAARect(left, top, right, bottom, color, mode);
     } else {
         drawColorRect(left, top, right, bottom, color, mode);