Commits on Jul 18, 2014

1. Reuse tile textures when appropriate …

   Instead of constantly destroying, recreating, and binding buffers to
   textures, we should reuse tile textures when the buffer does not change.

   

   mrobinson committed Jul 18, 2014
   4d264a6

2. Create textures immediately before compositing …

   This step is fairly cheap and waiting until the last minute, prevents
   us from creating two textures when content changes twice between
   composite passes.

   

   mrobinson committed Jul 18, 2014
   40b146d