weston/ivi-shell
Nobuhiko Tanibata 21deb28648 ivi-shell: transform refactoring to improve it to more readable code
Transform matrix for transforming a surface to global_matrix is
calculated from
* ivi_layout_surface_properties
* ivi_layout_layer_properties

This patch pareares sub-method like following,
1/ calc_surface_to_global_matrix()
 calc_transformation_matrix() is called twice with
 ivi_layout_surface/layer_properties respectively.

2/ calc_transformation_matrix()
 This calcurates matrix from orientation, source rectangle and
 destination rectangle.
 2-1/ To calculate rotation, fit centor of source rectangle to (0,0)
      temporarily. This is moved back in 2-4.
 2-2/ Apply rotation variant
 2-3/ Apply scale variant
 2-4/ Apply positioning variant, taking account into 2-1 temporary
      positioning.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-07-16 11:58:14 +03:00
..
.gitignore ivi-shell: a reference of weston.ini for ivi-shell and ivi-hmi-controller. 2014-12-04 17:25:50 +02:00
hmi-controller.c Unified multiple definitions of container_of() macro. 2015-06-15 17:11:58 -07:00
input-panel-ivi.c Unified multiple definitions of container_of() macro. 2015-06-15 17:11:58 -07:00
ivi-layout-export.h ivi-shell: rename to ivi_layout_layer_destroy() 2015-06-23 15:57:16 +03:00
ivi-layout-private.h ivi-shell: transform refactoring to improve it to more readable code 2015-07-16 11:58:14 +03:00
ivi-layout-transition.c *-shell: Update boilerplate from MIT X11 license to MIT Expat licenses 2015-06-15 13:04:18 -07:00
ivi-layout.c ivi-shell: transform refactoring to improve it to more readable code 2015-07-16 11:58:14 +03:00
ivi-shell.c text_backend: make destructor call explicit 2015-06-26 09:33:54 +03:00
ivi-shell.h text_backend: make destructor call explicit 2015-06-26 09:33:54 +03:00
README Spellcheck fixes 2015-03-19 17:02:08 +02:00
weston.ini.in ivi-shell/weston.ini: fix paths 2015-04-07 14:46:08 +03:00

	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.

  http://projects.genivi.org/wayland-ivi-extension/

- 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:
	http://projects.genivi.org/ivi-layer-management/node/13
	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:
	http://git.projects.genivi.org/?p=wayland-ivi-extension.git;a=summary

- 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