Hi, I'm currently trying to make use of OML_sync_control extension to schedule presentation of video frames in xbmc. I've run into somewhat of a snag. It seem the spec doesn't specify what time the UST clock really is, nor can i find any mention of it elsewhere in docs. Code wise it seem to be using do_gettimeofday(), which seems like a rather poor choice given that it can jump forward and back in time due to settimeofday calls. We normally make use of clock_gettime(CLOCK_MONOTONIC) to timestamp display of video frames, so to avoid major changes I'd need a way to convert to gettimeofday (seem same as CLOCK_REALTIME). Currently i'm trying: struct timespec mon, rel; clock_gettime(CLOCK_MONOTONIC, &mon); clock_gettime(CLOCK_REALTIME , &rel); ticks += (rel.tv_sec - mon.tv_sec) * 1000000000; ticks += (rel.tv_nsec - mon.tv_nsec); To convert between the two, but that is quite a hack both in the possibility of clock changes and scheduling errors. Is there a better way, or perhaps the DRI code should use CLOCK_MONOTONIC in the first place? Regards /Joakim _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
