Commit Graph

5258 Commits

Author SHA1 Message Date
Olivier Fourdan
602b6b6435 clients: fix build on Linux
Cannot find out why stropts.h is needed and Linux doesn't support
streams anyway, so there is no stropts.h.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
2016-01-14 13:50:23 -06:00
Bryce Harrington
ea8fb94337 gl-renderer: Fix comment typo 2016-01-13 18:48:56 -08:00
cpaul@redhat.com
c9f8f8a7f4 compositor: create_data_source(): Fix potential crash on OOM
Noticed this while working on primary selection, in the event we run out
of memory when trying to create a new data source, there's a chance
we'll fail on wl_resource_create() and crash from source->resource being
set to NULL.

Signed-off-by: Lyude <cpaul@redhat.com>
Reviewed-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2016-01-13 14:44:13 -08:00
Bryce Harrington
89324ce888 compositor: Make types consistent for bitshifting unsigned ints 2016-01-12 11:40:38 -08:00
Bryce Harrington
18e4573cea compositor: Verify that the maximum number of outputs is not exceeded
output_id_pool is defined as a uint32_t, thus ffs() provides a range of
1-32 available id numbers.  When the 33rd output is enabled, Weston will
set the ID to (unsigned)(-1) and thus lead to some unexpected
behaviors.

I'm not sure what the best way to handle this error would be since this
is in an initialization routine, but at least let's document the
potential error condition with an assert().
2016-01-12 11:40:38 -08:00
Bryce Harrington
3f650b8c58 compositor: Document how views and surfaces are mapped to outputs 2016-01-12 11:40:38 -08:00
Bob Ham
553d12488c desktop-shell: Allow binding-modifier weston.ini option to be none
Allow the binding-modifier option in weston.ini to take a value of
"none", meaning that none of the usual Super+Tab, Super+K, Super+Fn,
etc. key bindings will be enabled.

Signed-off-by: Bob Ham <bob.ham@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
2016-01-12 09:25:28 -06:00
Bob Ham
744e65317d desktop-shell: Make zapping configurable
Add a new boolean weston.ini option, "allow-zap" to enable or disable
the Ctrl-Alt-Backspace key combination.

Signed-off-by: Bob Ham <bob.ham@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
2016-01-12 09:24:05 -06:00
Bob Ham
91880f1e9e compositor-{drm, fbdev, rpi}: Make VT switching configurable
Add a new boolean weston.ini option, "vt-switching" to enable or
disable Ctrl-Alt-Fn key combinations.

Signed-off-by: Bob Ham <bob.ham@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>

(Derek Foreman changed the prototype for switch_vt_binding to
have a weston_keyboard * instead of weston_seat *.  The pointer
wasn't used, so this is just a warning fix.)
2016-01-12 09:21:28 -06:00
Emmanuel Gil Peyrot
5d43af3e88 clients: add simple-v4l-dmabuf client
This client opens a V4L2 device, usually exposed as /dev/videoN, and
retrieves its frames as dmabuf for later import into the compositor.

It supports both single- and multi-planar devices, and any format
exposed by the V4L2 device the Wayland compositor accepts.

This client never changes the v4l2 settings, use `v4l2-ctl -c` if you
want to change those.

Signed-off-by: Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com>
Acked-by: Derek Foreman <derekf@osg.samsung.com>
Tested-by: Derek Foreman <derekf@osg.samsung.com>

Maniphest Tasks: T90

Differential Revision: https://phabricator.freedesktop.org/D339
2016-01-11 13:34:22 -06:00
Emmanuel Gil Peyrot
8ef2957873 clients: Fix a few issues in simple-dmabuf-intel
Those were found while working on simple-dmabuf-v4l, as found in the
next patch of this series.

After each buffer’s params were ready to be submitted to the
compositor, a roundtrip was done, which is wasteful since we can do it
only once after having queued all the params we want.  Removing those
nested roundtrips also prevent the potentially dangerous side-effect of
calling callbacks for later events while previous events were still
being processed.

An extraneous surface damage was also removed.

Signed-off-by: Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>

Differential Revision: https://phabricator.freedesktop.org/D344
2016-01-11 13:31:48 -06:00
Emmanuel Gil Peyrot
3b65b0b38f clients: rename simple-dmabuf into simple-dmabuf-intel
This client was using an Intel-specific way to allocate a dmabuf, so it
makes sense to have that in its name.

Signed-off-by: Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>

Differential Revision: https://phabricator.freedesktop.org/D342
2016-01-11 13:30:49 -06:00
Emmanuel Gil Peyrot
bc35fdaed1 gl-renderer: Add support for a few YUV dmabuf formats
Namely the single-planar YUYV, the two-planar NV12, and the
three-planar YUV420, using the shaders already present in Weston.

Signed-off-by: Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>

Maniphest Tasks: T13

Differential Revision: https://phabricator.freedesktop.org/D334
2016-01-11 13:30:01 -06:00
Emmanuel Gil Peyrot
b8053505f4 gl-renderer: introduce a new struct dmabuf_image
This struct serves as renderer data for linux-dmabuf buffers, and can
contain multiple struct egl_image, simplifying this latter in the
common non-dmabuf case.

Signed-off-by: Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>

Differential Revision: https://phabricator.freedesktop.org/D333
2016-01-11 13:23:52 -06:00
Bryce Harrington
c9626a38c4 compositor: Document routines relating to idle behavior
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-22 14:57:43 -08:00
Bryce Harrington
c2be85777e compositor: Fix a couple comment typos
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-22 14:36:48 +02:00
Giulio Camuffo
f05d18f3ee xwm: let the shells decide the position of X windows
The xwm used to automatically send to Xwayland the position of X windows
when that changed, using the x,y of the primary view of the surface.
This works fine for the desktop shell but less so for others.
This patch adds a 'send_position' vfunc to the weston_shell_client that
the shell will call when it wants to let Xwayland know what the position
of a window is.
The logic used by the desktop-shell for that is exactly the same the xwm
used to have.
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: David Fort <contact@hardening-consulting.com>
2015-12-18 11:48:25 -06:00
Sjoerd Simons
c112e0c5bc compositor-fbdev: Drop intermediate shadow buffer
Currently the fbdev compositor has its own shadow buffer when rendering
with pixman, causing the following copies to occur:

[pixman shadow buffer] -> [fbdev shadow buffer] -> [fbdev hardware]

As the pixman render already does all output translation when
compositing the intermediate shadow buffer really isn't needed, so drop
it.

As a side-effect this fixes updating the fbdev hardware for outputs not
starting at 0x0.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: David FORT <contact@hardening-consulting.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Tested-by: Derek Foreman <derekf@osg.samsung.com>
2015-12-18 11:42:14 -06:00
Jonny Lamb
ba9dca054e weston-info: display output scale
Fall back to not showing anything as before if we don't have a
compositor with wl_output new enough (version 2 or newer).

Signed-off-by: Jonny Lamb <jonny.lamb@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-18 17:45:30 +02:00
Nobuhiko Tanibata
1c2201b543 ivi-shell: hmi-controller supports multi screens at random-mode.
It shows ivi applications at screensa randomly.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
a7ffa68e70 ivi-shell: hmi-controller supports multi screens at fullscreen mode.
It shows ivi applications in fullscreen per screen like,
The first screen: Application 1,4,5,6,,,,
The seconed screen: Application 2,
The third screen: Application 3

Thie mode assigns one application to each screen at first. And remaind
applications more than screens will be assigned to the first screen.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
d156d9c4cf ivi-shell: hmi-controller supports multi screens at side-by-side mode.
It shows 2 ivi application in a screen at side-by-side. It moves
additinal application more than 2xN to next screen N+1.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
a8aa91c0d1 ivi-shell: hmi-controller supports multi screens at tiling mode.
It shows 8 ivi applications in a screen at tiling. It moves additional
application more than 8xN to next screen N+1.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
d789c66a0f hmi-controller: allocate application layers for multi-screen
To locate surfaces of application on multi screens, multi layers are
created baseod on application-layer-id + base-layer-id-offset x N.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
2e656769b6 hmi-controller: allocate background surfaces for multi-screen
A surface ID for layer of background/panel image is set by key: background-id
or panel-id at weston.ini. To support multi screens, it also support offset,
surface-id-offset, to offset the surface ID to next ID for a layer on next
screen.

According to the above key, hmi-controller and ivi-shell-user-interface
who increments the number of screens per notification of wl_output.
crate surface and draw background/panel image on multi surface on screens.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
744b03093b hmi-controller: allocate base layers for multi-screen
A layer ID for screen is set by key: base-layer-id at weston.ini. To
support multi screens. It also support offset to offset the layer ID
to next ID for next screen.

For example,
base-layer-id=1000
base-layer-id-offset=10000

Layer id for screen 0: 1000
Layer id for screen 1: 11000
Layer id for screen 2: 21000

To support multi screen, create layers for background and panel bar which
located in the below per screens. At the moment, it is only layers.
Surfaces to be created at next patch in the patch set.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
35711df126 ivi-shell: hmi-controller implements internal method to get screen.
- get screens from weston core
- provide screens as internel method
- the iviscn is stored in array inverse order in index.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
1c2618e9ff ivi-shell: multi screen support to calcuration of a mask of weston_surface.
A weston_surface is transformed to multi screen coordinate, global
coordinate by matrix:m now.

Additionally, a mask needs to be calucated, taking account into,
- multi screen coordination: a destination rectangle of layer in the
  coordination is easily calcurated by adding weston_output.{x,y} in
  simple. This is because there is no scaled and rotated transformation.
- intersect inside of a screen the layer is assigned to. This is because
  overlapped region of weston surface in another screen shall not be
  displayed according to ivi use case.

Signed-off-by: Nobuhiko Tanibata <nobuhiko_tanibata@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
29babdf099 ivi-shell: convert from screen to global coordinates
In single screen, the coordinates of layer local coordinates are the
same as global coordinates. However, to support multi screens, the
layer-local coordinates shall be transformed to multi screen coordinates,
which is global coordinates. The abosolute coordinates of a screen in global
stored in (x,y) of output of its weston output so it shall be used to
transform layer-local to global coordinates.

Signed-off-by: Nobuhiko Tanibata <nobuhiko_tanibata@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
b4cb25dc26 ivi-shell: avoid update_prop() on invisible surfaces
For multi screen support, ivi_layout_screen to be taken account into
property change in commitChanges.

Property change is now done in update_prop so to consider ivi_screen
property for caluculating transform of weston surface, ivi_layout_screen
 is added as a parameter of update_prop.

However, update_prop of weston_view of a ivi_surface can not be done
even if it is set on a screen. The propoerty change shall be done only
when a visibility of ivi_surface or ivi_layer which contains the
ivi_surface is ON. Such a condition shall be checked at commit_changes
as well to avoid calling update_prop, which actually updates
weston_views.

Signed-off-by: Nobuhiko Tanibata <nobuhiko_tanibata@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:16:11 +02:00
Nobuhiko Tanibata
0627b4a73d ivi-shell: activate weston surface with a seat when left click or touch.
Similar with Desktop shell, set activate to weston surface which is
left-clicked by pointer or touched. This is needed to focus it with a seat.
Without this, a feature who gets activated weston surface by using
weston_surface_get_main_surface doesn't work correctly because it can
not get correct focused weston surface. For example, input-panel uses
weston_surface_get_main_surface to get a weston surface. With this
weston surface, it get a member: output to decide which output shall
show a input-panel, software keyboard. Without activation,
input-panel-ivi can not find a correct output which shows e.g.
weston-editor who uses input-method.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Tested-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-14 13:15:41 +02:00
Derek Foreman
748c695ef9 compositor-wayland: Add touch support
Adds support for touch devices to the wayland backend.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2015-12-08 13:04:50 -06:00
Derek Foreman
3cc004a650 input: Add notify_touch_cancel()
We already have notify_touch(), notify_touch_frame().  We need
notify_touch_cancel() to implement touch in the weston wayland backend
properly.

Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
2015-12-08 13:04:46 -06:00
Derek Foreman
cfce7d0b11 compositor-wayland: Properly release input resources when caps change
We should use wl_*_release when available instead of destroy, and we
should update weston's internal input tracking with weston_seat_releases

Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
2015-12-08 13:04:41 -06:00
Derek Foreman
9690641bfc cairo-util: return theme location from frame_touch_down
I'll be using this in a follow up patch that adds touch input to weston's
wayland backend.

Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
2015-12-08 13:04:34 -06:00
Jussi Kukkonen
3375ccaa27 configure.ac: add explicit enable/disable for lcms
This is useful for reproducable builds.

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-12-04 16:44:23 -08:00
Chris Michael
2ec5f2a633 cosmetic: Remove use of C++ style comments
Patch updated to remove dead lines as suggested by Daniel Stone

Signed-off-by: Chris Michael <cp.michael@samsung.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2015-12-03 15:28:53 -08:00
Derek Foreman
9973967138 compositor: Add doxygen for weston_surface_to_buffer_rect()
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-03 16:38:11 -06:00
Derek Foreman
fb1e1268d5 simple-damage: Add --use-damage-buffer flag
Add a new flag for testing damage in buffer co-ordinates

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-03 09:54:37 -06:00
Derek Foreman
152254be0d compositor: Add damage_buffer
Add an implementation of wl_surface.damage_buffer, similar to
wl_surface.damage except it uses buffer co-ordinates.

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
2015-12-03 09:45:32 -06:00
Emmanuel Gil Peyrot
c399692b8e linux-dmabuf: Move the attributes part of linux_dmabuf_buffer into its own struct
This allows renderers to use that struct to create their own dmabufs,
in case they can’t import the one provided by the client directly but
know how to convert it into a format they can render.

Signed-off-by: Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>

Differential Revision: https://phabricator.freedesktop.org/D332
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
2015-12-02 16:50:15 -06:00
Chris Michael
6207b6af09 compositor: Remove unused weston_surface_to_buffer function
The function 'weston_surface_to_buffer' is unused by compositor and
clients inside weston, so it should be safe to remove this function

Signed-off-by: Chris Michael <cp.michael@samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-12-01 16:19:07 -06:00
Derek Foreman
e2e15acc06 compositor: change rounding in weston_surface_to_buffer_rect()
Rounding both corners of the rectangle down can result in a 0
width/height rectangle before passing to weston_transformed_rect.

This showed up as missing damage in weston-simple-damage (the
bouncing ball would leave green trails when --use-viewport was
used)

Reviewed-by: Daniel Stone <daniels@collabora.co.uk>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
2015-12-01 16:12:51 -06:00
Chris Michael
5ffbfffaf7 main: Remove unused function load_backend_new()
This function is unused throughout the entire weston source tree, so
remove it. It seems that the "load_backend" function is the one
currently being used

Signed-off-by: Chris Michael <cp.michael@samsung.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
2015-11-30 14:55:24 -06:00
Derek Foreman
29b846eaa6 simple-damage: Offset drawing co-ordinates not buffer start
We've been setting up the viewport by moving the start pointer of the
draw buffer, but later when we want to post damage in buffer co-ordinates
we'll need to keep track of the x,y offsets anyway.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-11-30 10:03:09 -06:00
Derek Foreman
1909c10825 compositor, input: Don't use MIN() macro for new resource versions
libwayland-server protects us from invalid serial numbers by
posting an error already.

MIN() is for clients when selecting interface versions.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-11-27 17:01:14 -06:00
Pekka Paalanen
7eaed40b37 compositor-drm: fix hw cursor positioning
Fix a regression introduced by be428b3825
which accidentally removed the global-to-output space conversion.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Cc: Derek Foreman <derekf@osg.samsung.com>
Cc: Daniel Stone <daniels@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Tested-by: Derek Foreman <derekf@osg.samsung.com>
2015-11-27 09:38:09 -06:00
Nobuhiko Tanibata
747c3865ab ivi-shell: remove a code which expects only a screen in the system.
It breaks from wl_list_for_each of screens when the frist screen found.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-11-27 15:03:29 +02:00
Nobuhiko Tanibata
fbfa8f21f9 ivi-shell: fix layout_layer.view_list is not initilized per a screen.
This is potential bug when it supports several screens. If view_list is
initilized here, the views, which are set by the previous screen, are
cleared. So View list shall be initilized in front of wl_list_for_each
of all screens.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-11-27 15:03:29 +02:00
Nobuhiko Tanibata
77b0ee18a2 ivi-shell: avoid inserting a ivi_layer to multiple screens.
In just previous wl_list_for_each_safe, list of layer in a screen is
cleaned up. And then, the list is re-constructed from
pending.layer_list.

In this re-construction, if order.link of a layer were inserted into a
screen whose number is later one of current screen, the order.link will
inserted into layer_list of two screens. This shall be avoided.

However, if we want to implement a feature to allow a layer to be added
to multiple screens. A layer shall have several order.link per screens.
So, I marked here as TODO.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-11-27 15:03:29 +02:00