commit 8d4aeb7111afac0c3c7e56d4ad5d92f9cfce2ffd
author Romain Guy <romainguy@google.com> Tue Feb 12 16:08:55 2013 -0800
committer Romain Guy <romainguy@google.com> Wed Feb 13 11:27:05 2013 -0800
tree d526296ca8e54842b15b60adaad484ee29feccf2
parent d1a84242a7ba807310d8f8d389796c7163cb97a0

Add a render buffer cache to reuse stencil buffers
Bug #7146141

This new cache is used in a similar way to LayerCache. It helps
reuse already allocated stencil buffers and thus avoid churning
memory on every frame.

Change-Id: I19551d72da52c40039e65904563600e492c8b193

libs/hwui/OpenGLRenderer.cpp

diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 62f268d..2431e54 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -1273,11 +1273,8 @@
         // attach the new render buffer then turn tiling back on
         endTiling();
 
-        RenderBuffer* buffer = new RenderBuffer(
+        RenderBuffer* buffer = mCaches.renderBufferCache.get(
                 Stencil::getSmallestStencilFormat(), layer->getWidth(), layer->getHeight());
-        buffer->bind();
-        buffer->allocate();
-
         layer->setStencilRenderBuffer(buffer);
 
         startTiling(layer->clipRect, layer->layer.getHeight());