Dear Matt,

I just checked my compiled version, indeed I was using a version without
this patch. I patched my local weston but it didn't seem that my problem is
gone. So I guess there could be other problems with my code, but thanks for
your assistance. Now I can insert the callback in weston to do some
inspection.

Regards,
XZ

Le lun. 12 mars 2018 19 h 22, Matt Hoosier <matt.hoos...@gmail.com> a
écrit :

> Here's the discussion and patch that addressed the issue I was mentioning:
>
>
> https://lists.freedesktop.org/archives/wayland-devel/2017-September/035191.html
>
> On Mon, Mar 12, 2018 at 3:51 PM, Matt Hoosier <matt.hoos...@gmail.com>
> wrote:
> > Hi,
> >
> > Unless you're using an unreleased version of Weston, I think you're
> > probably running into a bug that we fixed a few months ago in which
> > wl_buffer::release() events were prone to sit undispatched in the
> > server's outgoing queue until some other event happened to need
> > transmitted.
> >
> > -Matt
> >
> > On Mon, Mar 12, 2018 at 1:23 PM, Sichem Zhou <sichem...@gmail.com>
> wrote:
> >> Hi all,
> >>
> >> Dear wayland devs, I have a question regarding to double `wl_buffer`
> >> management. I don't seem to have wl_buffer released untill some other
> events
> >> triggered (for example, the  inputs). My current environment is under
> >> `X11-backend` and a libweston based compositor.
> >>
> >> My pipeline follows: (frame, attach, damage, commit) -> buffer switch ->
> >> wait until one buffer available -> redraw. The `done` event is handled
> >> differently since it only signals if ready to draw.
> >>
> >> Through my experiments, I found out at I wouldn't get either of the
> >> `release` of `frame done` event if I wasn't using the compositor (moving
> >> cursor or typing). In this case I guess there is something wrong with my
> >> pipeline but I couldn't figure out which. I wish to know if there is
> obvious
> >> mistakes in my pipeline or the problem lies in the compositor.
> >>
> >>  Very appreciate any answers.
> >>
> >> SZ
> >>
> >>
> >>
> >> _______________________________________________
> >> wayland-devel mailing list
> >> wayland-devel@lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/wayland-devel
> >>
>
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