* Tue Mar 19 2013 Li Peng <peng.li@intel.com> submit/trunk/20130314.110708@22feedc
- set dri drawable format according to pixmap depth
- ignore alpha channel of texture format XRGB8888 and XBGR8888
* Tue Mar 19 2013 Li Peng <peng.li@intel.com> submit/trunk/20130314.110708@22feedc
- set dri drawable format according to pixmap depth
- ignore alpha channel of texture format XRGB8888 and XBGR8888