commit 512e643ce83b1d48ad9630a3622276f795cf4fb2
author ztenghui <ztenghui@google.com> Wed Sep 10 13:08:20 2014 -0700
committer ztenghui <ztenghui@google.com> Wed Sep 10 17:05:59 2014 -0700
tree f05101f282d7dd368707f57e3bf3539ecbe0f064
parent 9f30ce3b82acb1f9582e49e9d87ab0d58c8f9ce4

Re-triangulate the spot shadow.

Fix the valid umbra detection.

This looks better b/c every vertex will have one ray shooting at it, such that
we don't miss the corner.

This performs better too, due to the polygon intersection is removed and less ray
intersection. 2x performance for rect and circle for spot shadow in test app.

    b/17288227
    b/15598793
    b/16712006

Change-Id: I4a5ee397b9e192e93c8e35e6260b499e3e38a6f4

libs/hwui/VertexBuffer.h

diff --git a/libs/hwui/VertexBuffer.h b/libs/hwui/VertexBuffer.h
index 966fa4e..8c3a272 100644
--- a/libs/hwui/VertexBuffer.h
+++ b/libs/hwui/VertexBuffer.h
@@ -133,7 +133,7 @@
         mIndexCount = MathUtils::min(newCount, mAllocatedIndexCount);
     }
     void updateVertexCount(unsigned int newCount)  {
-        newCount = MathUtils::min(newCount, mAllocatedVertexCount);
+        mVertexCount = MathUtils::min(newCount, mAllocatedVertexCount);
     }
     Mode getMode() const { return mMode; }