[RFC PATCH wayland-protocols] Introduce logical output protocol for Xwayland

[Olivier Fourdan]

Hi Pekka,

> [...]
> Maybe more along the lines of xdg_output rather than wp_output. Is
> there something else desktops would need about outputs? Identification
> (machine-wide unique connector name, output number?) has come up
> before, in both human-readable description and persistent
> machine-parseable forms. Output type (monitor, projector, ...) maybe?
> 
> No need to add everything from the start, but I think it could make
> sense. Start with the position and size parameters all desktops use
> today, but maybe leave them somehow optional, and don't pack more than
> one thing (e.g. logical size) per event.
> 
> As for deprecation of existing wl_output bits, it could be as simple
> start as changing nothing. Maybe add documentation saying that
> extensions offer probably better things to use, or that some particular
> parameters are not always reliable.

Right, sounds like a plan, start with a new, very simple xdg_output protocol that (at least) fulfils the needs for Xwayland at first, and extend that over time as people need more.

Cheers,
Olivier