Collaboration on standard Wayland protocol extensions

Giulio Camuffo giuliocamuffo at
Mon Mar 28 06:08:55 UTC 2016

2016-03-27 23:34 GMT+03:00 Drew DeVault <sir at>:
> Greetings! I am the maintainer of the Sway Wayland compositor.
> It's almost the Year of Wayland on the Desktop(tm), and I have
> reached out to each of the projects this message is addressed to (GNOME,
> Kwin, and wayland-devel) to collaborate on some shared protocol
> extensions for doing a handful of common tasks such as display
> configuration and taking screenshots. Life will be much easier for
> projects like ffmpeg and imagemagick if they don't have to implement
> compositor-specific code for capturing the screen!
> I want to start by establishing the requirements for these protocols.
> Broadly speaking, I am looking to create protocols for the following
> use-cases:
> - Screen capture
> - Output configuration
> - More detailed surface roles (should it be floating, is it a modal,
>   does it want to draw its own decorations, etc)
> - Input device configuration
> I think that these are the core protocols necessary for
> cross-compositor compatability and to support most existing tools for
> X11 like ffmpeg. Considering the security goals of Wayland, it will also
> likely be necessary to implement some kind of protocol for requesting
> and granting sensitive permissions to clients.

On this, see
I have not been able to continue on that, but if you want to feel free
to grab that proposal.


> How does this list look? What sorts of concerns do you guys have with
> respect to what features each protocol needs to support? Have I missed
> any major protocols that we'll have to work on? Once we have a good list
> of requirements I'll start writing some XML.
> --
> Drew DeVault
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> wayland-devel mailing list
> wayland-devel at

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