tree 661aa4531ac7c41434c0f49d7c58185457c03d6e
parent e8b9e8e0faf85bb8b8a347c246226949cd009272
author Zhenkai Zhu <zhenkai@cs.ucla.edu> 1338921120 -0700
committer Zhenkai Zhu <zhenkai@cs.ucla.edu> 1338921120 -0700

move graphic operation to the same thread