Commit Graph

163 Commits

Author SHA1 Message Date
Jonas Ådahl
7ef8c9144d xdg-shell: Document the set_maximized and unsetmaximized requests
This patch changes the semantics (compared to the previous version of
this patch) of maximizing/unmaximizing an already maximized/unmaximized
surface to always result in a configure event. Doing it this way would
be more consistent with how the compositor works regarding other
configure events i.e. send many, letting the client ignore when needed
(for example during resize).

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-21 19:07:35 -07:00
Jonas Ådahl
7a9bb0ea00 xdg-shell: Document responsibilities regarding ping events
Document that a compositor is free to ping in any way it wants, but a
client must always respond to any xdg_shell object it created.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
2015-05-21 19:05:41 -07:00
Jonas Ådahl
5b77199cc1 xdg-shell: Document error conditions when popup and surface getters
Document that a wl_surface can only be assigned either a xdg_popup or
xdg_surface once and that if the client still stries to do that an error
is raised.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-21 19:01:45 -07:00
Jonas Ådahl
ca13f7ed8f xdg-shell: Clarify the meaning of app ID and give example
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
2015-05-21 18:56:26 -07:00
Bryce Harrington
83d61b6dfb protocol: Add test screenshot capability
This adds a capture_screenshot request which returns an image of the
screen in the client-supplied wl_buffer for the given display output.

A 'done' event is used to indicate when screenshotting has finished and
the wl_buffer is ready to be read.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-By: Derek Foreman <derekf@osg.samsung.com>
2015-05-21 15:05:53 -07:00
Jonas Ådahl
e4df9eea26 protocol: Improve formatting of input method and text protocols
To make it more readable, add an empty line between each request and
event.

Also comes with a bonus indentation fix.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
2015-05-12 12:03:55 +08:00
Derek Foreman
0f29923e30 text-input: Replace model with input
commit 78d00e45cc renamed text_model to text_input

This cleans up remaining uses of the word "model"

Reviewed-by: Jan Arne Petersen <janarne@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
2015-05-08 15:25:40 -07:00
Jonas Ådahl
f1bb57dd31 xdg-shell: Specify fullscreen size-mismatch handling
We cannot rely on the client to provide a surface filling the output so
we must specify what happens with the outputs area that is not covered
completely.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-05 14:28:46 +08:00
Jonas Ådahl
dde4955d4c xdg-shell: Specify the meaning of 0x0 window geometry in configure
Some times the compositor needs to send a configure request but without
having any clue about what size the surface should have. Examples
include unmaximizing a surface that was mapped as maximized, or an
initial state which doesn't have any size expectations.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-05 14:18:13 +08:00
Jonas Ådahl
7d1ad1122b xdg-shell: Some xdg_popup clarifications
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-05 14:18:05 +08:00
Jonas Ådahl
6ce76f00de xdg-shell: Some minor clarifications
Mention set_window_geometry in configure documentation.

Add a strategic "For instance" to clarify what is just an example.

Clarify that the arguments of set_window_geometry are in the surface
local coordinate space.

Point out that the client needs to destroy a dismissed popup.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-05 14:17:56 +08:00
Jonas Ådahl
a46cf2862f xdg-shell: Fix a couple of typos
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-05-05 14:17:45 +08:00
Jonas Ådahl
56c2c35e2e xdg-shell: Document that xdg_surface.set_window_geometry needs a commit
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-05 14:17:36 +08:00
Jonas Ådahl
cd94a46b97 xdg-shell: Require a buffer and a wl_surface.commit for mapping a window
Require the client to have attached (either previously committed, or
newly) a buffer to the corresponding wl_surface, and that the window
will not be potentially mapped until calling wl_surface.commit after
having created the window. This is required to make valid double
buffered xdg_surface state possible when creating a window.

Currently there is no double buffered state in xdg_popup, but it should
behave the same as xdg_surface, and for making it future proof in case
we want to add double buffered state to xdg_popup.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-05 14:17:25 +08:00
Jonas Ådahl
ee45a55dea xdg-shell: Move xdg_shell.get_xdg_popup errors to xdg_shell
They are errors that may be as a result of calling get_xdg_popup on an
xdg_shell, not a result of calling a request on xdg_popup.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-05 14:17:11 +08:00
Jonas Ådahl
49d77d20ae xdg-shell: Require proper object tree destruction
Require all child objects to be destroyed before the parent. In other
words, all popups and surfaces created by one xdg_shell instance needs
to be destroyed before the xdg_shell object, otherwise a protocol error
is raised.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-05-05 14:17:01 +08:00
Pekka Paalanen
f5b74f7ded tests: ivi_layout test infrastructure
Testing the ivi_layout API requires two things:
- the tests must be written as a controller module to access the API
- the tests need a helper client to create some objects that can then be
  managed via the API

This patch adds all the infrastructure and two different kinds of
example tests.

Internal ivi-shell (ivi_layout) API tests are listed as ivi-*.la files
in TESTS in Makefile.am. Weston-tests-env detects these, and runs Weston
with ivi-shell, and loads the given module as a controller module, not
as a normal plugin.

The test controller module ivi-*.la will launch a helper client. For
ivi-layout-test.la the helper client is ivi-layout.ivi.

The helper client uses the weston-test-runner framework to fork and exec
each TEST with a fresh connection to the compositor.

The actual test is triggered by the weston_test_runner protocol
interface, a new addition to weston-test.xml. The helper client uses
weston_test_runner to trigger a test, and the server side of the
interface is implemented by the test controller module
(ivi-layout-test.la).

The server side of weston_test_runner uses the same trick as
weston-test-runner.h to gather a list of defined tests. A test is
defined with the RUNNER_TEST macro.

If a test defined by RUNNER_TEST succeeds, an event is sent to the
helper client that it can continue (or exit). If a test fails, a fatal
protocol error is sent to the helper client.

Once the helper client has iterated over all of its tests, it signals
the batch success/failure via process exit code. That is cought in the
test controller module, and forwarded as Weston's exit code.

In summary: each ivi_layout test is a combination of a client side
helper/setup and server side actual tests.

v2: Load weston-test.so, because create_client() needs it.

v3: add a comment about IVI_TEST_SURFACE_ID_BASE.

v4: Rebased to upstream weston-tests-env changes.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com> (v2)
2015-04-09 09:27:05 +03:00
Marek Chalupa
c8daf77f91 weston-test: add device_{release/add} into protocol
This request simulates device creation/destruction from evdev (libinput)

v2: added support for touch. Touch is not supported yet,
    but better be prepared

Signed-off-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-03-31 10:12:39 +03:00
Bryce Harrington
a86c3ee697 Spellcheck fixes
./ivi-shell/README:19: protocal  ==> protocol
./src/compositor.h:596: seperate  ==> separate
./src/version.h.in:33: actualy  ==> actually
./src/cms-helper.h:44: embeded  ==> embedded
./protocol/fullscreen-shell.xml:65: seperate  ==> separate
./protocol/xdg-shell.xml:150: auxilliary  ==> auxiliary
./clients/window.c:1035: preferrably  ==> preferably

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-03-19 17:02:08 +02:00
Jasper St. Pierre
5ba1e1d137 xdg-shell: Bump unstable version
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-02-27 14:59:43 +02:00
Jasper St. Pierre
c7384a0c58 xdg-shell: Rewrite documentation
This rewrites basically all of the text inside xdg-shell to be up to
date, clearer, and rid of wl_shell and X11 terminology.

[jadahl: Added paragraph about popup surface mapping order.]
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-02-27 14:59:34 +02:00
Jasper St. Pierre
084aa0b6f6 xdg-shell: Add a simple destructor request
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-02-27 14:59:23 +02:00
Jonas Ådahl
24185e2561 xdg-shell: Add invalid_parent error to xdg_popup
Send an invalid_parent error when the client tries to create a popup
with a paren that is neither a xdg_surface nor a xdg_popup.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-02-27 14:59:18 +02:00
Jasper St. Pierre
da6ecd0cc5 xdg-shell: Send an error when the client uses the not-topmost popup
Either in destroy or get_xdg_popup.

[jadahl: Verify that the new popup is the top most when mapping instead
of creating. Some renaming.]

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-02-27 14:59:11 +02:00
Jasper St. Pierre
14f330c619 xdg-shell: Remove the flags from get_xdg_popup
There haven't been any ideas for flags, so we don't need a useless,
unused parameter hanging around. Any future ideas should be done with a
new request entirely.

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-02-27 14:59:05 +02:00
Jasper St. Pierre
ecf2a0f1ca xdg-shell: Remove the serial from popup_done
It doesn't serve any purpose, as it's a serial that the client gave to
the server when starting the popup, which the client already has.

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-02-27 14:58:57 +02:00
Jasper St. Pierre
66bc949b72 xdg-shell: Take a xdg_surface as the parent surface
There is no other valid surface that we should be using here.

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-02-27 14:58:35 +02:00
Derek Foreman
f6a65928a8 tests: Rename wayland-test to weston-test
wayland-test isn't and will never be wayland protocol, it's weston internal.

Renamed wayland-test to weston-test, and wl_test to weston_test.

Also added a Big Fat Warning to the description of weston_test to try to
keep people from thinking it's a good idea to use some of these functions
outside of testing.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Acked-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-02-24 11:26:29 -08:00
Derek Foreman
553895eb99 text: Fix typo
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-01-20 18:30:15 -08:00
Pekka Paalanen
0de22a38e6 protocol: add Presentation feedback flags
Add the missing feedback flags to the Presentation extension protocol
specification.

These flags are slightly different from the previous RFCv3.1 definition:
http://lists.freedesktop.org/archives/wayland-devel/2014-March/013598.html

Now, all compositors are safe to use 0 as the flags if they don't bother
setting them properly. 0 is the "worst case" with the least guarantees.

The meaning of ZERO_COPY is not exactly the opposite of the old COPY
flag. ZERO_COPY is more strict, but applies only to that one surface.
Therefore it can be used to verify a zero-copy video playback pipeline,
also to a hardware overlay.

There is no longer a flag to clearly indicate if the final presentation
was done by a copy or a page flip. ZERO_COPY forbids the copy, but VSYNC
alone does allow copy in case it cannot tear.  It is possible to have
first a compositing pass, and then another copy into the frontbuffer,
and still set VSYNC if it cannot tear.  Usually "cannot tear" is too
hard to guarantee with a copy, so it often implies a page flip.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Tested-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2015-01-20 17:12:56 -08:00
Derek Foreman
45641affe2 text: Fix some typos
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
2014-12-15 17:26:16 +02:00
Nobuhiko Tanibata
68cfabb89b protocol: ivi hmi controller protocol to set up IVI style UI
- introduces ivi-hmi-controller.xml

This protocol realizes following features,
- UI ready
- changing modes; tiling, side by side, full_screen, and random
- Give control a surface; workspace to be controlled by using ivi layout
  APIs
- Display/undisplay a surface; home contains sevaral workspaces to
  launch applications

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-12-04 17:13:41 +02:00
Nobuhiko Tanibata
bff1b4a596 protocol: add interface ivi_application extension
- introduces ivi-application.xml

Many applications in an IVI-system are special single-purpose
applications that have a very specific role in the whole IVI UI, for
example a rear camera, speedometer, map, etc. The IVI system vendor
specifies what these are and how they integrate into the UI. They also
vary between particular IVI systems. This is why we use (system-)global,
unique, pre-determined ID numbers to tell what wl_surface is which
application, instead of writing specific shell requests for each one.
Using ID numbers allows vendors to easily invent new component
applications without extending or breaking the actual Wayland protocol.
In IVI-systems, the ID is a standard concept already used in several
APIs, with a vendor-specified global definition of ID assignments.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-12-04 17:13:41 +02:00
Seedo Eldho Paul
95292f22f4 protocol: Fix some typos in protocol files
Signed-off-by: Seedo Eldho Paul <seedoeldhopaul@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-11-19 13:55:00 +02:00
Pekka Paalanen
d7cd1480d4 protocol: add role error code to xdg_shell
Needed for properly reporting role violations from
xdg_shell.get_xdg_surface and .get_xdg_popup.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
Acked-by: Jason Ekstrand <jason.ekstrand@intel.com>
2014-10-08 13:15:45 +03:00
Pekka Paalanen
7e62d25257 protocol: add presentation extension v5
Add accurate presentation timing features to Wayland: queueing and
feedback.

This specification is based on the draft written by Frederic Plourde
<frederic.plourde@collabora.co.uk> and redesigned by Pekka Paalanen.

The RFC v2 version is from
http://lists.freedesktop.org/archives/wayland-devel/2014-January/012988.html

Changes in v3:

* associate presentation time to current surface contents

This implements the suggestion from
http://lists.freedesktop.org/archives/wayland-devel/2014-February/013066.html

which prevents surface content from jumping backwards in time if a
client retroactively queues an update with a target time in the past.

* use 64-bit tv_sec in presentation

The time_t type used in struct timespec could be almost anything. POSIX
probably defines it to be an integer, but not the size. Apparently it is
usually 'long', which makes it 64-bit on x86_64.

To be able to fully represent timespec values returned by clock_gettime,
change the protocol to use 64 bits for the tv_sec part.

* define an error for invalid tv_nsec

This allow us to rely on the normalized timestamp form.

* define some interactions with sub-surfaces

Sub-surface cached state updates (synchronized mode) are designed
especially for resizing. As queued updates are not meant to produce any
resizing-like effects, they also do not trigger any sub-surface
operations.

* add sub-headings as xml comments

* queued update cannot map

Because before mapping, the surface has no main output assigned. An
immediate commit is needed anyway, to be able to set all the surface
state, which a queued update cannot touch.

* frame callbacks are not queued

It is not known when queueing frame callbacks would be useful.

Changes in v4:

* remove mentions of the queuing feature

The specification has been split and the queuing feature will be added
back in another version of the extension.

* add flags argument to 'presented' event

Describe the nature of how the update was presented to screen and the
characteristics of the feedback information. No flags have been
defined for now.

* add a protocol error code for invalid flags

Changes in v5:

* remove the destroy method for the feedback object

The protocol object should instead be automatically destroyed after
a 'presented' or 'discarded' event has been triggered.

* some grammatical corrections to the specification

[Louis-Francis Ratté-Boulianne: split the spec in two parts]

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
v3 Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2014-09-30 11:35:38 +03:00
Pekka Paalanen
ca3626074a protocol: fix a wrong word in wl_viewport.set_source
Obvious this affects the source, not destination.

Reported-by: Jasper St. Pierre <jstpierre@mecheye.net>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-08-27 15:46:22 +03:00
Pekka Paalanen
71182aed84 xdg-shell: bump experimental protocol version
The experimental versioning has not been updated when it was supposed
to. Let's try to be better at it now, as xdg-shell is close to have its
first stable version.

Bump the version now to bring the world into the same exact version.

There may be some protocol changes still coming, but we try to land them
before 1.6 gets out. Those changes will bump the experimental version
again as needed.

When 1.6.0 is released, the experimental version will no longer be
bumped, and no incompatible protocol changes will be made. Xdg-shell.xml
file will move to Wayland in 1.7.0, drop the experimental versioning,
and become stable.

Cc: Jasper St. Pierre <jstpierre@mecheye.net>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-08-21 17:47:20 +03:00
Jonny Lamb
765760dc71 desktop-shell: add set_panel_position to help place views onscreen
Panels are always assumed to be on the top edge of the output. If this
is not the case views will be placed under the panel, wherever it is,
and maximize doesn't use the correct space allocated for views.

By telling the server on which edge the panel is located, it can
correctly calculate where to put new views and how big maximized views
should be.

[Pekka Paalanen: the user of this protocol so far is Maynard.]

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-08-20 17:06:19 +03:00
Jasper St. Pierre
e7d7468521 xdg-shell: Fix documentation
request_change_state has been folded into the configure event.
2014-07-17 14:50:51 -07:00
Jasper St. Pierre
ccf48fb4f9 shell: Replace set_margin with set_window_geometry
Currently, there is a fun flicker when toggling maximization or
fullscreen on a window in mutter or more sophisicated compositors
and WMs.

What happens is that the client want so go maximized, so we
calculate the size that we want the window to resize to (640x480),
and then add on its margins to find the buffer size (+10 = 660x500),
and then send out a configure event for that size. The client
renders to that size, realizes that it's maximized, and then
says "oh hey, my margins are actually 0 now!", and so the compositor
has to send out another configure event.

In order to fix this, make the the configure request correspond to
the window geometry we'd like the window to be at. At the same time,
replace set_margin with set_window_geometry, where we specify a rect
rather than a border around the window.
2014-07-17 13:59:01 -07:00
Boyan Ding
1478ea54ca xdg-shell: Fix a typo in description
Signed-off-by: Boyan Ding <stu_dby@126.com>
2014-06-24 10:19:03 -07:00
Jasper St. Pierre
81ff075bf4 xdg-shell: Add show_window_menu request 2014-05-23 09:43:17 -07:00
Jasper St. Pierre
973d7879e3 xdg-shell: Turn "activated" into a state
This drops two events, and makes new window decorations race-free with
an attach in-flight.
2014-05-12 23:34:05 -07:00
Jasper St. Pierre
5befdda84f xdg-shell: Turn the resizing heuristics into an explicit state
Currently, there's a race condition. When resizing from the left, and
a client attaches a buffer after the resize ends, you suddenly see the
buffer jump to the right, because the resize ended while multiple
attaches were in-flight. Making resize a state can fix this, as the
server can now know exactly when the resize ended, and whether a commit
was before or after that place.

We don't implement the correct tracking in this commit; that's left as
an exercise to the reader.

Additionally, clients like terminals might want to display resize popups
to display the number of cells when in a resize. They can use the hint
here to figure out whether they are resizing.
2014-05-12 23:34:05 -07:00
Jasper St. Pierre
ab2c108137 xdg-shell: Rework the state system
The states system, so far, has been a complicated mix of weird APIs
that solved a real race condition, but have been particularly ugly
for both compositors and clients to implement.
2014-05-12 23:33:59 -07:00
Jasper St. Pierre
c815d62b85 xdg-shell: Rename set_transient_for to set_parent
It's a confusing name that comes from the ICCCM. The ICCCM is best
forgotten about.

With the addition of the potential new "transient" role meaning a
parent-relative toplevel like a long-lived popup, used for e.g.
tooltips, the set_transient_for name will become even more confusing.
2014-05-13 00:35:30 -04:00
Jonas Ådahl
9b05909954 desktop-shell: Fix order of desktop_shell messages
There was a bug in wayland-scanner that failed to detect when an
message with implicitly set version (i.e. version 1) came after a
message with a newer version. This patch fixes the weston desktop shell
protocol to pass again.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
2014-05-12 10:05:28 -07:00
Bryce W. Harrington
13600c02af protocol: Correct typo 'suppot'
Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
2014-04-10 11:59:30 -07:00
Pekka Paalanen
2c8b5f534b protocol: unify wl_viewport src and dst size rules
Let's make the source and destination size rules consistent: neither can
have zero, {-1, -1} disables it, and other negatives are not allowed.

The sanity of allowing zero sized source rectangle as debatable. Now the
minimum becomes 1/256x1/256, and with output_scale the actual samples
may be even smaller. That should be enough.

On not allowed values, raise a protocol error. This should help catch
bugs in clients that accidentally send garbage values.

The old wl_viewport.set request remains the same, and can still produce
zero sized source rectangle.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-04-06 22:38:15 -07:00