Our server announces the DpmsManagerInterface and in the DRM backend
we announce support for Dpms on the OutputInterface (if the Output
supports it) and we connect to changing Dpms requests.
If an Output went into DPMS standby we need to re-enable the Output
once we get any input event.
For this we connect to the signals of InputRedirection once we go
to standby. Once we enable again, we disconnect (to not handle the
events all the time), blank the screen (initial modesetting) and
trigger a complete repaint.
During cleanup the KWayland::OutputInterface is already destroyed before
we hit the cleanup code of DrmOutput. Thus guard with a QPointer to not
delete twice.
Replaces the functionality of the WaylandBackend and makes it available
to all backends by providing the functionality directly in
AbstractBackend. By default a backend is not ready and the implementation
must call setReady(true) to indicate that setup has finished
successfully. The compositor won't start till the backend indicates that
it is ready.
The aim is to be able to create a plugin for each of the backends.
The following directories are created:
* backends/drm
* backends/fbdev
* backends/wayland
* backends/x11
