Draft: backend/drm: implement output layers
Depends on !1985 (closed)
Depends on https://github.com/swaywm/wlroots/pull/3100
-
Make it work on multi-output setups -
Make it handle VRR and gamma
Depends on !1985 (closed)
Depends on https://github.com/swaywm/wlroots/pull/3100