Commit Graph

88 Commits

Author SHA1 Message Date
Derek Foreman
5e7b4d0c00 input: Use weston_coord in add_border
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-09 12:12:40 +00:00
Derek Foreman
905d16d23b input: Use weston_coord for weston_pointer_motion_to_rel
Use weston_coord for some internal stuff.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-09 12:12:40 +00:00
Derek Foreman
d5132c6516 input: Convert vec2d to weston_coord
No need for two vector structs.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-09 12:12:40 +00:00
Derek Foreman
69908000e3 input: Convert weston_pointer_motion_event to weston_coord
This struct has a lot of members that can be converted to weston_coord.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-09 12:12:40 +00:00
Derek Foreman
8031b9d57f backend: Make input notification functions use weston_coord
Push weston_coord into the notification functions instead of passing
two doubles.

The touch handlers are passed a pointer to a weston_coord, which is
unusual. This is done so we can pass a NULL pointer instead of a
fabricated invalid coordinate when the touch type is TOUCH_UP.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-09 12:12:40 +00:00
Derek Foreman
c7b9625775 input: Don't assert when sending touch motion
If a window is clicked with a mouse while it's being interacted with via
touch input, the assert from 2dc8680d will fire.

This is a leftover from d611ab24

Update the transform before converting the coordinate to fix this.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-07 16:28:25 +02:00
Derek Foreman
64d9270804 libweston: Use weston_coord space conversion functions
Update users of the old coordinate space conversion functions that take
x, y pairs to the new weston_coord versions.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-01 07:27:05 -06:00
Derek Foreman
f5e9904d4a libweston: Update view transform in seat_get_pointer
This triggers my new favourite assert sometimes when making RDP
connections, so just update the transform here.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-01-10 12:12:49 +00:00
Marius Vlad
ab1a3c8164 libweston/input: update view transforms when handling touch_down
Another leftover from d611ab24 "libweston: Update view transforms more
often".

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2022-12-30 14:02:59 +00:00
Leandro Ribeiro
04cc477afa libweston/input: update view transforms when handling confined pointer motion
When the pointer is confined and we are handling motion, we need
up-to-date view transforms in order to respect the confinement. So
update view transforms in such case.

This fixes an issue in which we'd try to transform views with dirty
transforms in weston_pointer_clamp_event_to_region(), hitting an assert.

This is a leftover of d611ab24 "libweston: Update view transforms more
often".

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2022-12-19 17:05:37 -03:00
Leandro Ribeiro
7344970552 libweston/input: update view transforms when pointer is constrained
When the pointer is constrained and the surface in which it is
constrained gets committed, we may warp the pointer in some
circumstances. In order to do that, we need the associated view
transforms up-to-date. So update view transforms when this surface gets
committed.

This fixes an issue in which we'd hit an assert when trying to warp the
pointer, as we were trying to transform views with dirty transforms.

This is a leftover of d611ab24fd
"libweston: Update view transforms more often".

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
2022-12-06 13:52:09 -03:00
Derek Foreman
d611ab24fd libweston: Update view transforms more often
These places all eventually lead to calling weston_view_to_global_float()
or weston_view_from_global_float() on a view with a dirty transform.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-14 16:05:46 -06:00
Derek Foreman
bbd707d9bc input: fix surface jump test
There are two problems here, one is that the surface jump logic only makes
sense if the view remains the same.

The more important fix is that pointer coordinates are in global coordinates
and we want view coordinates, so this test was always wrong and led to an
xdg ping storm due to spurious focus changes.

Fixes 4d141a788

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-10 09:00:26 -06:00
Derek Foreman
9b7402ece9 input: Don't test uninitialized variables
weston_pointer_move() can change the pointer->focus, so we have to ensure
we're only testing old_sx and old_sy if we had a focus set before that
point.

Fixes 9b5a525a3d

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-10 08:12:53 -06:00
Derek Foreman
de306e4601 input: make sure pointer->focus is set before trusting pointer->sx,sy
We're just going to crash at weston_view_from_global_fixed() anyway if
this is untrue, but we have a similar assertion elsewhere already.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-02 10:25:15 +00:00
Derek Foreman
9b5a525a3d input: Be more careful with pointer surface coordinates
Whether these coordinates are "invalid" (set to an unlikely sentinel value)
or not is based purely on whether pointer->view is valid.

Check pointer->view before using these values every time, and stop
using an "invalid" value entirely.

The reason for this is that in the future we're reworking how 2D
coordinates are handled, and removing the dubious conecept of an invalid
coordinate simplifies things a little.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-02 10:25:15 +00:00
Derek Foreman
4d141a7881 libweston: Don't return coordinates from weston_compositor_pick_view
Sometimes callers don't want them, and sometimes (when view is NULL) the
coordinate is invalid.

Waste a tiny bit of time calculating them as needed in the callers
instead.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-02 10:25:15 +00:00
Derek Foreman
9409ce7024 input: Don't test bogus coordinates in surface jump logic
sx and sy are meaningless (-1000000) when view is NULL. The case this
is meant to catch is when the surface coordinates change while the
global coordinate doesn't, (eg: max/unmax a window with a keyboard
shortcut) - in that case view will always be set.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-02 10:25:15 +00:00
Derek Foreman
eed00f679e input: Don't pass surface coordinates to weston_pointer_set_focus
We're always passing pointer->x, y converted to surface coordinates, or
garbage if view is NULL. Let's just stop passing those coordinates
entirely and calculate them in the function.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-02 10:25:15 +00:00
Derek Foreman
2995bc981d input: Complain if we focus a surface with a coordinate outside it
Not all callers of weston_pointer_set_focus use weston_compositor_pick_view
to get their coordinate, so let's log something if the coordinate doesn't
make sense.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-11-02 10:25:15 +00:00
Derek Foreman
2ca2eac39a libweston: Split notify_pointer focus into notify/clear
This lets us say what we really mean instead of passing a NULL output
and garbage co-ordinates.

This will help later when manufacturing garbage coordinates becomes much
harder to do.

The clear_pointer_focus() path continues to do nothing, and is just a FIXME
macro, as it has been for a very long time...

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-10-25 15:58:24 -05:00
Michael Olbrich
5448580111 input: send touch frame event after up event
Currently the frame event gets lost: The touch focus is removed in the 'up'
event. So the focus is gone when the frame event arrives so it is never sent to
the clients.

To avoid this, keep the touch focus until the frame is handled.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
2022-09-24 13:54:57 +02:00
Derek Foreman
bb8ef7d271 libweston: Refactor point in output test
This is arguably a little nicer without calling the pixman functions
directly.

In the future when we have different datatypes for coordinates in different
spaces, this test will only be valid on global coordinates, so this change
is also a precursor to stronger type validation.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2022-09-23 12:08:34 +00:00
Marius Vlad
1aa935e6d8 libweston/input: Assert if we're still having a notify listener installed
Tracking correctly previous events shouldn't corrupt the surface destroy
signal list. This enforces that by ensuring that we wouldn't have
a .notify wl_listener still being set (which shouldn't happen if we do
eventually get a focus_in event that clears it out).

Suggested-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2022-09-02 15:45:13 +03:00
Daniel Stone
0c69688aa2 libweston: Add weston_surface_map() wrapper
Change all instances of surface->is_mapped = true, to a specialised
function.

Signed-off-by: Daniel Stone <daniels@collabora.com>
2022-06-16 12:17:15 +03:00
Hideyuki Nagase
8fb529bc31 input: Fix bug in idle inhibition
Server generated key repeats are ignored - and they don't generate
matching release events. We early return to avoid generating events
for them.

We also need to push the idle inhibition counting after that early
return to prevent breaking idle inhibition with unmatched events.

Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Co-authored-by: Brenton DeGeer <brdegeer@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
2022-04-18 12:10:20 +00:00
Marius Vlad
d6ccc8b025 libweston: Rename weston_view_activate() to weston_view_activate_input()
This way, we try to differentiate between input focus and window/surface
activation.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2021-11-02 19:04:33 +02:00
Derek Foreman
a822afaaef input: fix keyboard focus crash
If two or more clients were running and the one that was focused when
weston itself lost keyboard focus was killed, weston would crash.

This is because commit 85d55540cb changed the way we handle saved keyboard
focus when we lose focus, and did so in such a way that the saved keyboard
focus listener could be removed from the surface destroy signal list
during the emit of the surface destroy signal. This corrupted the list
and led to a NULL pointer dereference.

Fix this by using a boolean flag to determine whether we should obey the
saved keyboard focus. We can set this safely in cases where
removing the listener would cause a crash.

Fixes #138

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2021-09-28 11:42:04 +03:00
Emmanuel Gil Peyrot
eff793ab46 Fix indentation all through the project
Fixes a “regression” from 04918f3b0b, but
also other missed pieces.
2021-07-31 15:28:20 +00:00
Marius Vlad
eb34f827dd input: Handle correctly failure to compile XKB keymaps
And ultimately, fail to start when there are no input devices on the
system. Patchs adds consistency to touch/pointer initialization to
return -1 in case same thing happens.

Further more, when the device is not created we can't assume to retrieve
a valid one from a libinput_device so guard against it. This takes care of
hot-plugging situations when we couldn't create the (keyboard) device,
or when removing it.

Fixes: #117, #402, #485

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Suggested-by: Daniel Stone <daniel.stone@collabora.com>
2021-07-31 13:44:47 +00:00
Alexandros Frantzis
28d66344a0 input: Use cursor surface dimensions to evaluate presence of content
When setting a cursor surface, use the surface dimensions, instead of the
weston_surface buffer reference, to check if the surface has any
content. A weston_surface without any buffer reference may in fact
have a buffer which was committed in a previous pointer entry, dropped
by weston_surface and now held only internally by the renderer.

Without this fix, when a pointer enters a surface, the cursor image is
not correctly updated if we set a cursor surface with an already
committed buffer from a previous pointer entry, without recommitting the
cursor buffer for the current entry. This can be seen, for example, in
the experimental Wine Wayland driver which handles the cursor in a way
that leads to the following scenario:

Setup: cursor_surface.attach(buffer) & cursor_surface.commit()
On first wl_pointer.enter: pointer.set_cursor(cursor_surface)
compositor/renderer redraws
wl_pointer.leave
On second wl_pointer.enter: pointer.set_cursor(cursor_surface)

When handling the second pointer.set_cursor() request the current code
doesn't find a buffer attached to the cursor_surface (only the renderer
now has a reference to it), so it doesn't update the respective view for
the cursor.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
2021-06-10 17:20:30 +03:00
Kirill Chibisov
c46c70dac8 libweston: Send wl_keyboard.modifiers after wl_keyboard.enter
The core Wayland protocol explicitly states that wl_keyboard.modifiers
must be send after wl_keyboard.enter.

This commit also changes the behavior of `seat_get_keyboard` to not
send `wl_keyboard.modifiers` in case where seat had pointer focus,
but not keyboard one.

Signed-off-by: Kirill Chibisov <contact@kchibisov.com>
2020-07-09 17:47:11 +03:00
Peter Hutterer
a2086bba66 libweston: replace 0 with the enum value for the xkb init flags
No functional changes, this is cosmetics only.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2020-05-14 11:49:54 +10:00
Sebastian Wick
abec512883 input: use ro_anonymous_file to minimize duplication of keymap files
Since version 7 clients must use MAP_PRIVATE to map the keymap fd so we
can use memfd_create in os_ro_anonymous_file_get_ref using
RO_ANONYMOUS_FILE_MAPMODE_PRIVATE, for older version we use
RO_ANONYMOUS_FILE_MAPMODE_SHARED to be compatibile with MAP_SHARED.

Signed-off-by: Sebastian Wick <sebastian@sebastianwick.net>
2019-11-04 15:10:05 +01:00
Sebastian Wick
da50a2a532 input: bump wl_seat version to 7
Version 7 only restricts how the client can mmap the keymap fd so
bumping this is safe.

Signed-off-by: Sebastian Wick <sebastian@sebastianwick.net>
2019-11-04 15:10:05 +01:00
Sebastian Wick
fcc6ff74d4 input: bump wl_seat version to 6
New in version 6 are touch shape, touch orientation and axis source
wheel tilt. Weston doesn't support any of them yet but simply not
sending the new events and new enum value is sufficient to claim to
support this version.

Also bump the Wayland requirement to 1.17 to ensure both version 6 and 7
definitions are in the XML.

The reason for bumping to v6 without implementing the new features is
that we must support v7 to make use of struct ro_anonymous_file
introduced in the previous commit.

Signed-off-by: Sebastian Wick <sebastian@sebastianwick.net>
2019-11-04 15:10:04 +01:00
Marius Vlad
5d649b611a libweston: Migrate functions that operate on 'weston_seat'
All 'notify_()*' belong in the private backend header file.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2019-07-18 06:43:38 +00:00
Marius Vlad
56f3a68a01 libweston: Migrate functions that operate on 'weston_compositor'
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2019-07-18 06:43:38 +00:00
Marius Vlad
a2dace23ae libweston: Fix/clean-up doxygen warnings
This fixes warnings for weston-debug, input, compositor, log and
linux-explicit-sync. Warnings range from swapping '[in]', '[out]' with
the function arguments to wrong parameter names.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2019-06-25 14:05:54 +00:00
Antonio Borneo
3957863667 log: remove "%m" from format strings by using strerror(errno)
The printf() format specifier "%m" is a glibc extension to print
the string returned by strerror(errno). While supported by other
libraries (e.g. uClibc and musl), it is not widely portable.

In Weston code the format string is often passed to a logging
function that calls other syscalls before the conversion of "%m"
takes place. If one of such syscall modifies the value in errno,
the conversion of "%m" will incorrectly report the error string
corresponding to the new value of errno.

Remove all the occurrences of the specifier "%m" in Weston code
by using directly the string returned by strerror(errno).
While there, fix some minor indentation issue.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2019-05-02 22:10:30 +02:00
Pekka Paalanen
3d5d9476e3 Rename compositor.h to libweston/libweston.h
The main idea is to make libweston users use the form

 #include <libweston/libweston.h>

instead of the plain

 #include <compositor.h>

which is prone to name conflicts. This is reflected both in the installed
files, and the internal header search paths so that Weston would use the exact
same form as an external project using libweston would.

The public headers are moved under a new top-level directory include/ to make
them clearly stand out as special (public API).

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2019-04-18 12:31:46 +03:00
Derek Foreman
76829fc4ea input: Send unique keymap file descriptors to clients
Client may map any file descriptor opened for writing with PROT_WRITE
themselves.  On linux, even a read-only file descriptor to an unlinked
file can be re-opened with write permission through /proc/self/fd.

The only way to prevent this is to create a memfd which
is subsequently write-sealed.  Unfortunately this prevents clients
from mapping with MAP_SHARED, which is already in widespread usage.

To isolate and protect the keymap, whilst allowing MAP_SHARED clients
to continue to work, use a unique file descriptor for each
wl_keyboard resource.

Reviewed-by: Daniel Stone <daniels@collabora.com>
2018-08-17 09:25:24 -05:00
Derek Foreman
f8f7fd69df input: add weston_keyboard_send_keymap helper function
We've always had "send_keymap" internally, but some places failed to use
it.  Since we also use this in the text backend, export it.

Reviewed-by: Daniel Stone <daniels@collabora.com>
2018-08-17 09:25:21 -05:00
Louis-Francis Ratté-Boulianne
83630983ad libweston: implement touch calibration protocol
This implements a new global interface weston_touch_calibration, which
allows one client at a time to perform touchscreen calibration. This
also implements the calibrator window management.

A client asks to calibrate a specific physical touch device (not a
wl_seat which may have several physical touch devices aggregated).
Libweston grabs all touch devices and prevents normal touch event
handling during the calibation sequence.

API is added to enable this new global interface, but it not yet called
by anything. Since the implementation allows clients to grab touch devices
arbitrarily, it is not enabled by default. The compositor should take
measures to prevent unexpected access to the interface.

A client may upload a new calibration to the compositor. There is a
vfunc to allow the compositor to reject/accept it and save it to
persistent storage. The persistent storage could be a udev rule
setting LIBINPUT_CALIBRATION_MATRIX, so that all display server would
load the new calibration automatically.

Co-developed by Louis-Francis and Pekka.

v2:
- use struct weston_point2d_device_normalized
- use syspath instead of devpath
- wrong_touch was renamed to invalid_touch
- rename weston_touch_calibrator::cancelled to calibration_cancelled
- send invalid_touch on out-of-bounds touch-down
- cancel touch sequence and send invalid_touch on motion going
  out-of-bounds
- rename calcoord_from_double() to wire_uint_from_double()
- send bad_coordinates error in touch_calibrator_convert()
- conversion results in 0,0 if cancelled

Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
v1 Tested-by: Matt Hoosier <matt.hoosier@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-05-30 14:46:24 +03:00
Louis-Francis Ratté-Boulianne
c4689ff1d0 input: introduce touch event mode for calibrator
In addition to the normal touch event processing mode, introduce a new
mode for calibrating a touchscreen input device.

In the calibration mode, normal touch event processing is skipped, and
the raw events are forwarded to the calibrator instead. The calibrator
is not yet implemented, so the calls will be added in a following patch.

To switch between modes, two functions are added, one for entering each
mode. The mode switch happens only when no touches are down on any touch
device, to avoid confusing touch grabs and clients. To realise this, the
state machine has four states: prepare and actual state for both normal
and calibrator modes.

At this point nothing will attempt to change the touch event mode.

The new calibrator mode is necessary, because when calibrating a
touchscreen, the touch events must be routed to the calibration client
directly. The touch coordinates are expected to be wrong, so they cannot
go through the normal focus surface picking. The calibrator code also
cannot use the normal touch grab interface, because it needs to be able
to distinguish between different physical touch input devices, even if
they are part of the same weston_seat. This requirement makes
calibration special enough to warrant the new mode, a sort of "super
grab".

Co-developed by Louis-Francis and Pekka.

Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
v1 Tested-by: Matt Hoosier <matt.hoosier@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-05-30 14:46:14 +03:00
Pekka Paalanen
332a45e096 input: do not forward unmatched touch-ups
Commit a30e29af2e introduced the code to
deal with a touchscreen with touches already down when Weston starts
using it. It fixed the touchpoint counting problem.

However, Weston still should not forward or process the unmatched
touch-ups either. Code inspection says it would confuse the
idle-inhibit counting, and it could probably confuse clients as well.
Hence, just drop unmatched touch-ups.

Enhance the warning message to allow identifying where the event came
from.

v2:
- use syspath instead of devpath

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
v1 Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
v1 Tested-by: Matt Hoosier <matt.hoosier@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-05-30 14:46:14 +03:00
Louis-Francis Ratté-Boulianne
813a06e455 input: move touchpoint counting up
The touchpoint counting is needed regardless of what we do with the
touch events, so move it out of process_touch_normal() into the caller
notify_touch_normalized().

This is pure refactoring.

Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
v1 Tested-by: Matt Hoosier <matt.hoosier@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-05-30 14:46:05 +03:00
Pekka Paalanen
f406253d3c libweston: introduce notify_touch_normalized() and doc
notify_touch_normalized() is an extended form of notify_touch(), adding
normalized touch coordinates which are necessary for calibrating a
touchscreen.

It would be possible to invert the transformation and convert from
global coordinates to normalized device coordinates in input.c without
adding this API, but this way it is more robust against code changes.

Recovering normalized device coordinates is necessary because libinput
calibration matrix must be given in normalized units, and it would be
difficult to compute otherwise. Libinput API does not offer normalized
coordinates directly either, but those can be fetched by pretending the
output resolution is 1x1.

Anticipating touch calibration mode, the old notify_touch() is renamed
into a private process_touch_normal(), and the new
notify_touch_normalized() delegates to it.

Co-developed by Louis-Francis and Pekka.

v2:
- introduce struct weston_point2d_device_normalized
- rename notify_touch_cal() to notify_touch_normalized()
- remove WESTON_INVALID_TOUCH_COORDINATE

Cc: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
v1 Tested-by: Matt Hoosier <matt.hoosier@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-05-30 14:46:05 +03:00
Pekka Paalanen
bcbce33000 libweston: notify_touch API to use weston_touch_device
Relay touch input events into libweston core through the
weston_touch_device, so that the core can tell which individual physical
device they come from.

This is necessary for supporting touchscreen calibration, where one
needs to process a single physical device at a time instead of the
aggregate of all touch devices on the weston_seat.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
v1 Tested-by: Matt Hoosier <matt.hoosier@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-05-30 14:45:58 +03:00
Louis-Francis Ratté-Boulianne
6ef59c9843 input: introduce weston_touch_device
Introduce weston_touch_device for libweston core to track individual
touchscreen input devices. A weston_seat/weston_touch may be an
aggregation of several physical touchscreen input devices. Separating
the physical devices will be required for implementing touchscreen
calibration. One can only calibrate one device at a time, and we want to
make sure to handle the right one.

Both backends that support touch devices are updated to create
weston_touch_devices. Wayland-backend provides touch devices that cannot
be calibrated, because we have no access to raw touch coordinates from
the device - calibration is the responsibility of the parent display
server. Libinput backend provides touch devices that can be calibrated,
hence implementing the set and get calibration hooks.

Backends need to maintain an output pointer in any case, so we have a
get_output() hook instead of having to maintain an identical field in
weston_touch_device. The same justification applies to
get_calibration_head_name.

Also update the test plugin to manage weston_touch_device objects.

Co-developed by Louis-Francis and Pekka.

v2:
- Consistently use 'cal' instead of 'calb' or 'matrix'.
- change devpath into syspath
- update copyrights

Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
v1 Tested-by: Matt Hoosier <matt.hoosier@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-05-30 14:42:13 +03:00