tree 68701bf122de44541f50f5db363c6d8db07c457b
parent 10ccb5a971200a8db90ac87501c7ad633c0cd8b4
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