commit 054dc1840941665e32036f9523df51720ad069c8
author Romain Guy <romainguy@google.com> Fri Oct 15 17:55:25 2010 -0700
committer Romain Guy <romainguy@google.com> Fri Oct 15 17:55:25 2010 -0700
tree 1f89288c08d67739f4f92d5cd04996d896a6d1e6
parent 9d13fe25f4f10b25776b1dc5c858f9ebb0b28b30

Don't draw entirely transparent 9patch meshes.

Change-Id: If3e62e18b8e0dbde8a22f8ede2889b86500a4dc2

libs/hwui/PatchCache.cpp

diff --git a/libs/hwui/PatchCache.cpp b/libs/hwui/PatchCache.cpp
index 4762d21..0fad628 100644
--- a/libs/hwui/PatchCache.cpp
+++ b/libs/hwui/PatchCache.cpp
@@ -67,6 +67,11 @@
         }
     }
 
+    // If the 9patch is made of only transparent quads
+    if (transparentQuads == (width + 1) * (height + 1)) {
+        return NULL;
+    }
+
     const PatchDescription description(bitmapWidth, bitmapHeight,
             pixelWidth, pixelHeight, width, height, transparentQuads, colorKey);