frame callbacks and sub_surfaces

[Joel Winarske]

Thanks for the clarification.  Much appreciated.

I'm interested in implementing a sub-surface example.  Is a MR/PR of
interest?

Thanks,
Joel

On Tue, Nov 1, 2022 at 1:53 AM Pekka Paalanen <ppaalanen at gmail.com> wrote:

> On Mon, 31 Oct 2022 10:14:42 -0700
> Joel Winarske <joel.winarske at gmail.com> wrote:
>
> > Thank you for the enlightenment!
> >
> > Adding the ordered commit calls was the missing link.
> >
> > Do the commit calls need to happen based on the active Z-order, or based
> on
> > the order of surface creation?
>
> They need to be ordered by sub-surface relationships, i.e. what is the
> parent surface for a sub-surface.
>
> Z-order is completely irrelevant here. Also wl_surface creation order
> is irrelevant. What is relevant is what you set as the parent
> wl_surface in wl_subcompositor.get_subsurface request.
>
> You can create a sub-surface tree in any order by creating the
> wl_subsurface objects in any order. The relevant thing is the final
> parent surface <-> sub-surface association graph (actually a tree) when
> you start doing updates (commits) to the wl_surfaces.
>
>
> Thanks,
> pq
>
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