Nobuhiko Tanibata
4f6853b271
- hmi-controller.so - introduces hmi-controller.so The library is used to manage layout of surfaces/layers. Layout change is triggered by ivi-hmi-controller protocol, ivi-hmi-controller.xml. A reference how to use the protocol, see ivi-shell-user-interface.c. In-Vehicle Infotainment system usually manages properties of surfaces/layers by only a central component which decide where surfaces/layers shall be. This is differenct use case from desktop style; each application can request property of its window via xdg-shell protocol, like fullscreen and set its to top level. In-Vehicle Infortainment system doesn't allow each application to chagen them from its application because of safty reasons. The concept of layer is simillar with a use case of cursor layer of Destop. For In-Vehicle Infortainment system, it is extended to all applications. For example, rearview camera application is assigned to a layer to group several surfaces, e.g. captured image and drawing lines separately. Central manaegr can control property of the layer of rearview camera. This reference show examples to implement the central component as a module of weston. Default Scene graph of UI is defined in hmi_controller_create. It consists of - In the bottom, a base layer to group surfaces of background, panel, and buttons - Next, a application layer to show application surfaces. - Workspace background layer to show a surface of background image. - Workspace layer to show launcher to launch application with icons. Paths to binary and icon are defined in weston.ini. The width of this layer is longer than the size of screen because a workspace has several pages and is controlled by motion of input. Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
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.