Upon leasing, the wlr_drm_lease_connector_v1 will be automatically clean up by the wlr_output
destroy handler. There is no need for the wlr_drm_lease_manager to keep track of leased connectors.
An output group is an output implementation that contains one or more
separate outputs as children. The children can be grouped together to
turn into one big output (for a tiled display).
Updates:
- use upstream src_box/dst_box
- provide wlr_backend_impl, set features.timeline=true if all children
have it
- fix output destroy (happens on vt switch) by properly removing output
from group registry
- add output->impl->test because otherwise trying direct scan out can
fail and stop updating the screen (scene_entry_try_direct_scanout)
- use wlr_output_finish() on destroy
- remove output->impl->get_buffer_caps (but keep the logic that
buffer_caps is the intersection of all children)
Add wlr-internal enums for the properties specified in
color-representation-v1 (encoding, range, chroma siting, alpha mode) so
that other parts of wlroots can use these without depending on the
protocol specifics and without needing to include the protocol headers.
Also add conversion functions to convert the protocol enum values into
the wlroots enum values.
Color transforms are better suited than raw gamma tables, because:
- They don't need to get copied around: they are ref'counted.
- They can represent more color operations (will be useful for the
upcoming KMS color pipeline API, and for the Wayland color
management protocol).
If a surface is mirrored on two outputs, we don't want to pick the
first output if the second has a higher refresh rate.
Also fixes duplicate frame/feedback events when a surface is added
to multiple scenes.
This lets the surface handler decide which output to send frame
callbacks from. The output_sample event already works this way.
Introduce wlr_scene_surface_send_frame_done() as a replacement for
wlr_scene_buffer_send_frame_done() when a compositor doesn't have
an output at hand.
Follow-up from !4803. Make things consistent by making all `struct
timespec`s in events owned. Reduces the need for thinking about
ownership/lifetimes.
The spec says [1]:
> If set, the Window Manager should use this in preference to WM_NAME.
However we overwrite WM_NAME with NULL when _NET_WM_NAME is unset.
Fix this by storing both WM_NAME and _NET_WM_NAME, so that we
handle properly all combinations of events (e.g. a client setting
both and later clearing one).
[1]: https://specifications.freedesktop.org/wm-spec/1.3/ar01s05.html#id-1.6.2
