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/Layer.cpp

diff --git a/libs/hwui/Layer.cpp b/libs/hwui/Layer.cpp
index 9247b1d..1899002 100644
--- a/libs/hwui/Layer.cpp
+++ b/libs/hwui/Layer.cpp
@@ -101,14 +101,13 @@
 
 void Layer::removeFbo(bool flush) {
     if (stencil) {
-        // TODO: recycle & cache instead of simply deleting
         GLuint previousFbo;
         glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo);
         if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, fbo);
         glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
         if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, previousFbo);
 
-        delete stencil;
+        Caches::getInstance().renderBufferCache.put(stencil);
         stencil = NULL;
     }