On 11月25日, 上午5時40分, Deva R <r.deva...@gmail.com> wrote: > >Neither "sleep" nor "while loop" is good solution. > >Is there any suggestion for this? > > how about waiting on a semaphore after issuing Copybit and signaling it once > 2D-engine completes? >
Waiting for semaphore will result in CPU scheduling. I am studying gralloc_lock and I consider that it is called before the surfaceflinger is going to depict on the corresponding PMEM buffer. If this is true, I can wait for 2D engine finishing command queue in the begaining of gralloc_lock. Regards, Colin -- unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting
