b5eedade36
Add presentation clock setters that verify the given clock actually works. Offer an automatic choice of a software fallback clock, when a backend has to always use clock_gettime() to approximate the presentation time. The DRM backend already queried the DRM about the clock id, just let the DRM backend set the presentation clock from that. For all other backends which do not get a timestamp from the driver, call the software clock setter to choose a suitable clock. Report the chosen clock via presentation.clock_id event to clients. In finish_frame(), upgrade the argument from uint32_t milliseconds to struct timespec which can accurately hold the presentation clock values. This will be needed when weston_output_finish_frame() starts to send out presentation_feedback.presented events. While at it, replace gettimeofday() calls with clock_gettime() using the chosen presentation clock, so we manufacture presentation timestamps from the presentation clock when the gfx drivers cannot give us a proper timestamp. Rpi patch is more verbose due to not having the compositor pointer available in rpi_flippipe_update_complete(). Explicitly carry the clock id with flippipe so it is available in the thread. Changes in v4: * rpi debug build fix v4 Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk> v3 Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Weston Weston is the reference implementation of a Wayland compositor, and a useful compositor in its own right. Weston has various backends that lets it run on Linux kernel modesetting and evdev input as well as under X11. Weston ships with a few example clients, from simple clients that demonstrate certain aspects of the protocol to more complete clients and a simplistic toolkit. There is also a quite capable terminal emulator (weston-terminal) and an toy/example desktop shell. Finally, weston also provides integration with the Xorg server and can pull X clients into the Wayland desktop and act as a X window manager. Refer to http://wayland.freedesktop.org/building.html for building weston and its dependencies. The test suite can be invoked via `make check`; see http://wayland.freedesktop.org/testing.html for additional details.