DRM Lease protocol implementation

[technobaboo]

I'm a VR/AR developer that's trying to use Monado and SteamVR but they don't work on Wayfire due to the DRM Lease protocol being unimplemented... if i had time i'd contribute but i don't sadly so i'll just put this as an issue. I've confirmed it's not present with wayland-info.

[moshimeow]

Hey, no fair, I was about to open this issue! ;)

Also can confirm that Monado can't use wayfire as a DRM lease backend - tried it myself a couple of hours ago

[technobaboo]

gotta be quicker next time :p

…

On Sun, Oct 2, 2022 at 12:18 AM slitcch ***@***.***> wrote: Hey, no fair, I was about to open this issue! ;) — Reply to this email directly, view it on GitHub <#1581 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABCU4EFHJPGTE62DTB53CNLWBDIFFANCNFSM6AAAAAAQ2U6NWY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[jc-kynesim]

I'll add my name to the list of people who'd like it, and if it could be persuaded to work on any DRM connector rather than just ones marked non-desktop that would make me happy.

[ammen99]

Support for just added for non-desktop outputs. @jc-kynesim what is the use-case for leasing regular outputs?

[jc-kynesim]

Fullscreen video playback where you want full control over the output to match the input stream. In the fullness of time it would be great if Wayland supported HDR, colour ranges, etc. but it doesn't (and I don't see it doing so in the short term) - DRM does. It would be convenient to be able to simply use it from within Wayland rather than having to switch out of Wayland. X lets you do this (at least with some backends).

[ammen99]

How would you configure that though? The application would have to support running on DRM directly (and afaik there are only a few of them who support that). Or do you want to run X11 on one monitor and Wayfire on the other? That ought to be possible with multiple logind seats afaik.

[jc-kynesim]

Well I want to use it in VLC (on a Pi) where I have a working DRM output which does HDR, colourspaces etc. and under X I lease the DRM handles when I go to fullscreen - if I could lease DRMs handles that would just work.

[ammen99]

Well I am not against adding the feature but it will require more changes. We'll need to make output-layout aware of the possibility of leasing outputs, and the state will have to be handled accordingly. PRs welcome.

[ammen99]

Actually, better open a new issue because this one wasnt about that originally.