action binder protocol https://git.vlhl.dev/navi/wayland/wayland-protocols.git/atom?h=master 2023-01-23T17:06:32+00:00 2023-01-23T17:06:32+00:00 Xaver Hugl xaver.hugl@gmail.com 2022-11-28T13:57:13+00:00 urn:sha1:930bc8014b43653204d411add2009c0d86e4a945 If the compositor advertises an output as a wp_drm_lease_connector_v1 and as wl_output, it should make the names match to allow clients to identify the connection between the two outputs. Signed-off-by: Xaver Hugl <xaver.hugl@gmail.com> 2022-02-25T21:22:20+00:00 Tadeo Kondrak me@tadeo.ca 2022-02-25T21:22:20+00:00 urn:sha1:1293ff146ee851ca3f513509f216d9f3adc89916 Signed-off-by: Tadeo Kondrak <me@tadeo.ca> 2021-08-06T07:03:19+00:00 Xaver Hugl xaver.hugl@gmail.com 2021-05-06T13:16:20+00:00 urn:sha1:aa3df4084af54c9622f864bcae093da2f8f55b89 DRM leasing is a feature which allows the DRM master to "lease" a subset of its DRM resources to another DRM master via drmModeCreateLease, which returns a file descriptor for the new DRM master. We use this protocol to negotiate the terms of the lease and transfer this file descriptor to clients. In less DRM-specific terms: this protocol allows Wayland compositors to give over their GPU resources (like displays) to a Wayland client to exclusively control. The primary use-case for this is Virtual Reality headsets, which via the non-desktop DRM property are generally not used as desktop displays by Wayland compositors, and for latency reasons (among others) are most useful to games et al if they have direct control over the DRM resources associated with it. Basically, these are peripherals which are of no use to the compositor and may be of use to a client, but since they are tied up in DRM we need to use DRM leasing to get them into client's hands. Signed-off-by: Marius Vlad <marius.vlad@collabora.com> Signed-off-by: Drew DeVault <sir@cmpwn.com> Signed-off-by: Xaver Hugl <xaver.hugl@gmail.com> Reviewed-by: Simon Ser <contact@emersion.fr> Signed-off-by: David Edmundson <davidedmundson@kde.org> Reviewed-by: Jonas Ådahl <jadahl@gmail.com>