weston

History

Philipp Zabel 4b1de0112b build: add rpath to modules that use symbols from libexec_weston The cms-static, desktop-shell, hmi-controller, ivi-shell, and screen-share modules use symbols from libexec_weston, e.g.: $ ldd /usr/lib/x86_64-linux-gnu/weston/desktop-shell.so \| grep "not found" libexec_weston.so.0 => not found Loading these modules from weston happens to work because the weston executable itself links against libexec_weston, and has an rpath set. Still, these modules depend on a library in a non-standard location. Adding an rpath could help static checkers to make sure all shared objects' dependencies are present. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>		2020-02-06 09:00:42 +00:00
..
README	ivi-shell: Add missing sentence point	2018-09-18 11:54:29 +02:00
hmi-controller.c	Use weston_compositor_add_destroy_listener_once() in plugins	2019-11-21 16:32:55 +00:00
ivi-layout-export.h	Rename plugin-registry.h to libweston/plugin-registry.h	2019-04-18 12:31:46 +03:00
ivi-layout-private.h	ivi-layout: use libweston-desktop api is to send configure events everywhere	2019-07-01 15:50:08 +00:00
ivi-layout-shell.h	ivi-layout: introduced surface create and configure	2019-02-06 17:45:09 +00:00
ivi-layout-transition.c	ivi-layout: use libweston-desktop api is to send configure events everywhere	2019-07-01 15:50:08 +00:00
ivi-layout.c	ivi-layout: unmap desktop surfaces in ivi_view_destroy()	2019-07-01 15:51:57 +00:00
ivi-shell.c	config-parser: Make get_bool be bool	2019-11-28 19:24:13 +00:00
ivi-shell.h	Move libweston-desktop.h	2019-04-18 12:31:46 +03:00
meson.build	build: add rpath to modules that use symbols from libexec_weston	2020-02-06 09:00:42 +00:00
weston.ini.in	ivi-shell: remove input-method section from config	2018-11-05 08:37:07 +00:00

README

In-vehicle infotainment (information and entertainment)
graphical environment support modules for Weston

IVI-shell is an alternative shell for Weston, a Wayland display server.
Window management and application interaction with the display server
are very different to that of a normal desktop, which is why this is
a separate shell and not an extension to the desktop-shell suite with
xdg_shell. As such, applications need to be specifically written to use
IVI-shell.

IVI-shell contains two main features:
- Common layout library for surface, which allow ivi-shell developer
to develop own shell, linking Common layout library.
For the time being, the library refers Genivi ilm interface.

https://at.projects.genivi.org/wiki/display/WIE/Wayland+IVI+Extension+Home

- Extension protocol; ivi-application to tie wl_surface and a given ID.
With this ID, shell can identify which wl_surface is drawn by which
application. In in-vehicle infortainment system, a shell has to update
a property of a wl_surface. E.g. there may be a use case when vehicle
starts to move, the wl_surface drawn by Car navigation is expected to
move top of surfaces.

The actual software components delivered with Weston are:

- ivi-application.xml:
Wayland protocol extension for IVI-applications; the public
shell protocol (the same concept as xdg_shell).
Implemented by ivi-shell.so.

- ivi-shell.so:
A Weston shell module that implements ivi-application.xml interfaces.
Loads ivi-layout.so.

- ivi-layout.so:
Implements the IVI window management concepts: Screen, Layer,
Surface, groups of Layers, groups of Surfaces, see:
https://at.projects.genivi.org/wiki/display/WIE/Summary+of+Layer+manager+APIs
Offers a stable API for writing IVI-controller modules like
hmi-controller.so against the IVI concepts. In other words,
it offers an API to write IVI window manager modules.

- hmi-controller.so:
A sample implementation of an IVI-controller module, usually
replaced by IVI system vendors.
Uses ivi-layout.so to perform essentially window manager tasks.
This implementation keeps all window management inside the module,
while IVI-systems may use another module that exposes all window
management via Wayland or other protocol for an external process
to control.

- ivi-hmi-controller.xml:
Wayland protocol extension for IVI display control; the private
shell protocol for weston-ivi-shell-user-interface client
(the same concept as desktop-shell.xml).
Implemented by hmi-controller.so, and usually replaced by IVI
system vendors.

- weston-ivi-shell-user-interface:
A sample implementation of an IVI shell helper client, usually
replaced by IVI system vendors.
A helper client for basic display content, similar to
weston-desktop-shell.

How to compile:
same as weston. To disable, use option: --disable-ivi-shell for configure.

How to configure weston.ini:
reference ini file will be generated in <build_dir>/ivi-shell.

How to run:
same as weston. exec weston.

How to use UI:
http://lists.freedesktop.org/archives/wayland-devel/attachments/20140625/abbfc064/attachment-0001.png