On 11/05/2016 23:08, Leo Liu wrote:
scrn->next_msc = ((int64_t)stamp - scrn->last_ust + scrn->ns_frame/2) /
+ scrn->ns_frame + scrn->last_msc;
Could you explain this calculation ?
I think it may get issues if ns_frame is wrong. For example for some
reason (app hidden for some frame, or monitor shut, or whatever), I
think we could get two buffers getting complete event with same ust (one
skipped, and one shown).
I think the calculation should be made more robust to issues with
ns_frame. Perhaps do some temporal averaging of ns_frame and ignore
outliers ?
Axel
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
