platform/upstream/wayland.git
15 months agoprotocol: do not change pending x and y when attaching a buffer
Sebastian Wick [Tue, 14 Feb 2023 12:33:22 +0000 (13:33 +0100)]
protocol: do not change pending x and y when attaching a buffer

Attaching a buffer with interface version 5 requires clients to pass
zero to x and y but it still affects the pending surface state.
Attaching a buffer after a request to offset therefore sets the pending
x and y to zero. The intent of version 5 was to allow exactly this
sequence of requests to work so let's just make sure the protocol
actually spells it out.

Signed-off-by: Sebastian Wick <sebastian.wick@redhat.com>
15 months agoprotocol: add wl_pointer's axis relative physical direction
Peter Hutterer [Sat, 29 Jul 2017 11:34:49 +0000 (12:34 +0100)]
protocol: add wl_pointer's axis relative physical direction

This event adds the physical direction of the axis motion, relative to the
axis event we get. Right now, when natural scrolling is enabled things like
virtual volume sliders move the wrong way round.

By adding the axis motion direction, we can have toolkits swap the scroll
direction for applicable widgets, getting the right behavior on all widgets.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
15 months agoreadme: convert to Markdown
Simon Ser [Mon, 13 Feb 2023 18:57:15 +0000 (19:57 +0100)]
readme: convert to Markdown

Gives us nice links and code blocks.

Signed-off-by: Simon Ser <contact@emersion.fr>
15 months agoreadme: reword website description
Simon Ser [Mon, 13 Feb 2023 18:55:42 +0000 (19:55 +0100)]
readme: reword website description

The website is most useful for docs. Build instructions have been
mostly dropped from it: they're better described in downstream
projects' READMEs.

Signed-off-by: Simon Ser <contact@emersion.fr>
15 months agoreadme: drop paragraph about Weston
Simon Ser [Mon, 13 Feb 2023 18:54:13 +0000 (19:54 +0100)]
readme: drop paragraph about Weston

There are many Wayland compositors nowadays.

Signed-off-by: Simon Ser <contact@emersion.fr>
15 months agowayland-server: Add method to get global name
Andri Yngvason [Mon, 21 Nov 2022 22:08:15 +0000 (22:08 +0000)]
wayland-server: Add method to get global name

This is useful for protocol designs where globals need to be referenced
in some manner.

Signed-off-by: Andri Yngvason <andri@yngvason.is>
15 months agoprotocol: add wl_surface.preferred_buffer_transform
Simon Ser [Sat, 26 Nov 2022 12:26:34 +0000 (13:26 +0100)]
protocol: add wl_surface.preferred_buffer_transform

Same as the new wl_surface.preferred_buffer_scale event but for
transform.

No version bump needed since the previous commit did that.

Signed-off-by: Simon Ser <contact@emersion.fr>
15 months agoprotocol: add wl_surface.preferred_buffer_scale
Simon Ser [Mon, 28 Mar 2022 17:58:04 +0000 (19:58 +0200)]
protocol: add wl_surface.preferred_buffer_scale

Right now, clients need to bind to wl_output globals, listen to wl_output.scale,
listen to wl_surface.enter/leave, pick the highest scale factor.

This is an issue because it breaks Wayland's "policy, not mechanism" motto.
Clients take the decision of which scale to use depending on the outputs they're
on, compositors have no say in this (apart from faking output events, which
isn't great).

This commit introduces a new wl_surface.preferred_buffer_scale event to allow
compositors to directly indicate the preferred scale factor for each surface.

This unlocks features which require dynamically changing the scale such as:

- Accessibility features such as screen magnifier
- In a VR environment, render surfaces close to the eye at a higher scale
- HiDPI screenshots on LoDPI screens

Signed-off-by: Simon Ser <contact@emersion.fr>
Closes: https://gitlab.freedesktop.org/wayland/wayland/-/issues/271

16 months agoserver: rename wl_display.id to next_global_name
Simon Ser [Tue, 24 Jan 2023 22:55:29 +0000 (23:55 +0100)]
server: rename wl_display.id to next_global_name

This is much more descriptive. This value is a counter incremented
each time a new global is created.

Signed-off-by: Simon Ser <contact@emersion.fr>
16 months agoserver: fail on global name overflow
Simon Ser [Tue, 24 Jan 2023 22:51:57 +0000 (23:51 +0100)]
server: fail on global name overflow

display->id is initialized to 1, making 0 a convenient value to
indicate an invalid global name. Make sure to not return a zero
global name on overflow. Moreover, if we wrap around, we might
cycle back to a global name which is already in-use.

Signed-off-by: Simon Ser <contact@emersion.fr>
16 months agoprotocol: wl_subsurface::destroy does not remove the role
Mikhail Gusarov [Thu, 20 Oct 2022 21:31:33 +0000 (23:31 +0200)]
protocol: wl_subsurface::destroy does not remove the role

Role assigned to wl_surface cannot be removed.
Delete contradicting text from wl_subsurface::destroy documentation.

Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
16 months agorelease.sh: Don't push *all* tags
Marius Vlad [Wed, 14 Dec 2022 12:33:42 +0000 (14:33 +0200)]
release.sh: Don't push *all* tags

Rather than trying to push all possible tags just push the one
created for that release.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
16 months agoscanner: Fix undefined behavior around qsort
Fergus Dall [Thu, 22 Sep 2022 21:58:13 +0000 (07:58 +1000)]
scanner: Fix undefined behavior around qsort

According to clang, qsort cannot be passed a null pointer, even if the size is
specified to be zero. The scanner can hit this while trying to sort forward
declarations if it happens to be building a protocol file that doesn't require
any, either in the header or the source.

Signed-off-by: Fergus Dall <sidereal@google.com>
17 months agoprotocol: add note about wl_buffer/wl_callback version
Simon Ser [Mon, 5 Dec 2022 17:29:23 +0000 (18:29 +0100)]
protocol: add note about wl_buffer/wl_callback version

This is an exception which can be confusing. Add an explicit note
about it in the protocol text.

Signed-off-by: Simon Ser <contact@emersion.fr>
18 months agoprotocol: add defunct_role_object error
Kirill Primak [Sat, 15 Oct 2022 17:26:42 +0000 (20:26 +0300)]
protocol: add defunct_role_object error

This commit adds wl_surface.defunct_role_object error, which has
semantics similar to xdg_wm_base.defunct_surfaces error, and is sent
when a client destroys a surface while the corresponding role object
still exists.

Signed-off-by: Kirill Primak <vyivel@eclair.cafe>
18 months agoprotocol: remove wl_subsurface lifetime contradiction
Kirill Primak [Sat, 15 Oct 2022 17:05:34 +0000 (20:05 +0300)]
protocol: remove wl_subsurface lifetime contradiction

This statement assumes that a wl_surface can be destroyed before the
corresponding wl_subsurface, which is not true, as wl_surface
description explicitly states that the role object must be destroyed
before the wl_surface itself.

Signed-off-by: Kirill Primak <vyivel@eclair.cafe>
19 months agotests: Ensure resource vs. client destroy handler order
Daniel Stone [Thu, 21 Jul 2022 10:18:48 +0000 (11:18 +0100)]
tests: Ensure resource vs. client destroy handler order

Make sure that the client destroy handler runs strictly before the
resource destroy handler, which runs strictly before the client
late-destroy handler.

Signed-off-by: Daniel Stone <daniels@collabora.com>
19 months agowayland-server: Add wl_client_add_destroy_late_listener
Daniel Stone [Thu, 21 Jul 2022 10:07:04 +0000 (11:07 +0100)]
wayland-server: Add wl_client_add_destroy_late_listener

A late-destroy listener for a client is called after all the client's
resources have been destroyed and the destroy callbacks emitted. This
lives in parallel to the existing client destroy listener, called
immediately before the client's objects get destroyed.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Fixes: wayland/wayland#207

19 months agotests: Use bool for client test
Daniel Stone [Thu, 21 Jul 2022 09:50:30 +0000 (10:50 +0100)]
tests: Use bool for client test

A 0/1-only int is a bool.

Signed-off-by: Daniel Stone <daniels@collabora.com>
20 months agoprotocol: add wl_compositor.error.bad_parent
Simon Ser [Mon, 5 Sep 2022 07:18:47 +0000 (09:18 +0200)]
protocol: add wl_compositor.error.bad_parent

This forbids loops in sub-surface trees.

Signed-off-by: Simon Ser <contact@emersion.fr>
20 months agoprotocol: mention protocol error name in wl_subcompositor.get_subsurface
Simon Ser [Mon, 5 Sep 2022 07:11:18 +0000 (09:11 +0200)]
protocol: mention protocol error name in wl_subcompositor.get_subsurface

Let's be explicit here.

Signed-off-by: Simon Ser <contact@emersion.fr>
20 months agoci: upgrade images
Simon Ser [Thu, 8 Sep 2022 09:41:15 +0000 (11:41 +0200)]
ci: upgrade images

Upgrade Debian to bullseye and FreeBSD to 13.1. FreeBSD 13.0 is
not supported anymore, and this ensures we still build on fresh
images.

Signed-off-by: Simon Ser <contact@emersion.fr>
20 months agoci: set ASAN_OPTIONS=detect_odr_violation=0
Simon Ser [Thu, 8 Sep 2022 10:26:12 +0000 (12:26 +0200)]
ci: set ASAN_OPTIONS=detect_odr_violation=0

Signed-off-by: Simon Ser <contact@emersion.fr>
References: https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/154

20 months agocursor: make param names match with documentation
Simon Ser [Thu, 8 Sep 2022 08:38:54 +0000 (10:38 +0200)]
cursor: make param names match with documentation

There was a mismatch here.

Use a good-looking function param name because that's what will
show up in docs. Use an abbreviation inside the function.

Fixes the following warnings:

    cursor/wayland-cursor.c:504: warning: argument 'cursor' of command @param is not found in the argument list of wl_cursor_frame(struct wl_cursor *_cursor, uint32_t time)
    cursor/wayland-cursor.c:504: warning: The following parameter of wl_cursor_frame(struct wl_cursor *_cursor, uint32_t time) is not documented:
      parameter '_cursor'
    cursor/wayland-cursor.c:452: warning: argument 'cursor' of command @param is not found in the argument list of wl_cursor_frame_and_duration(struct wl_cursor *_cursor, uint32_t time, uint32_t *duration)
    cursor/wayland-cursor.c:452: warning: The following parameter of wl_cursor_frame_and_duration(struct wl_cursor *_cursor, uint32_t time, uint32_t *duration) is not documented:
      parameter '_cursor'
    cursor/wayland-cursor.c:147: warning: argument 'image' of command @param is not found in the argument list of wl_cursor_image_get_buffer(struct wl_cursor_image *_img)
    cursor/wayland-cursor.c:147: warning: The following parameter of wl_cursor_image_get_buffer(struct wl_cursor_image *_img) is not documented:
      parameter '_img'
    cursor/wayland-cursor.c:504: warning: argument 'cursor' of command @param is not found in the argument list of wl_cursor_frame(struct wl_cursor *_cursor, uint32_t time)
    cursor/wayland-cursor.c:504: warning: The following parameter of wl_cursor_frame(struct wl_cursor *_cursor, uint32_t time) is not documented:
      parameter '_cursor'
    cursor/wayland-cursor.c:452: warning: argument 'cursor' of command @param is not found in the argument list of wl_cursor_frame_and_duration(struct wl_cursor *_cursor, uint32_t time, uint32_t *duration)
    cursor/wayland-cursor.c:452: warning: The following parameter of wl_cursor_frame_and_duration(struct wl_cursor *_cursor, uint32_t time, uint32_t *duration) is not documented:
      parameter '_cursor'
    cursor/wayland-cursor.c:147: warning: argument 'image' of command @param is not found in the argument list of wl_cursor_image_get_buffer(struct wl_cursor_image *_img)
    cursor/wayland-cursor.c:147: warning: The following parameter of wl_cursor_image_get_buffer(struct wl_cursor_image *_img) is not documented:
      parameter '_img'

Signed-off-by: Simon Ser <contact@emersion.fr>
20 months agoserver: don't document void return values
Simon Ser [Thu, 8 Sep 2022 08:37:52 +0000 (10:37 +0200)]
server: don't document void return values

Fixes the following warnings:

    src/wayland-server.c:1152: warning: documented empty return type of wl_display::wl_display_destroy
    src/wayland-server.c:1193: warning: documented empty return type of wl_display::wl_display_set_global_filter

Signed-off-by: Simon Ser <contact@emersion.fr>
20 months agoutil: name function typedef arguments
Simon Ser [Thu, 8 Sep 2022 08:36:28 +0000 (10:36 +0200)]
util: name function typedef arguments

Doxygen doesn't support documenting unnamed function arguments.

Fixes the following warnings:

    src/wayland-util.h:697: warning: argument 'const' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'void' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'void' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'uint32_t' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'const' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'struct' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'wl_message' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'union' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'wl_argument' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:725: warning: argument 'const' of command @param is not found in the argument list of wl_log_func_t(const char *, va_list)
    src/wayland-util.h:725: warning: argument 'char' of command @param is not found in the argument list of wl_log_func_t(const char *, va_list)
    src/wayland-util.h:725: warning: argument 'va_list' of command @param is not found in the argument list of wl_log_func_t(const char *, va_list)
    src/wayland-util.h:697: warning: argument 'const' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'void' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'void' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'uint32_t' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'const' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'struct' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'wl_message' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'union' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:697: warning: argument 'wl_argument' of command @param is not found in the argument list of wl_dispatcher_func_t(const void *, void *, uint32_t, const struct wl_message *, union wl_argument *)
    src/wayland-util.h:725: warning: argument 'const' of command @param is not found in the argument list of wl_log_func_t(const char *, va_list)
    src/wayland-util.h:725: warning: argument 'char' of command @param is not found in the argument list of wl_log_func_t(const char *, va_list)
    src/wayland-util.h:725: warning: argument 'va_list' of command @param is not found in the argument list of wl_log_func_t(const char *, va_list)

Signed-off-by: Simon Ser <contact@emersion.fr>
20 months agobuild: Make release.sh generic
Olivier Fourdan [Tue, 6 Sep 2022 13:05:37 +0000 (15:05 +0200)]
build: Make release.sh generic

The "release.sh" script is a convenient and documented way to release
Wayland packages.

Unfortunately, the actual package name is hardcoded, meaning that to
reuse that script in other Wayland projects, one needs to duplicate the
script and amend it.

Use meson to determine the actual project name, so that the same script
can be invoked from any relevant Wayland project.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
21 months agoserver: Extend display name string size
Carlos Garnacho [Thu, 4 Aug 2022 22:35:40 +0000 (00:35 +0200)]
server: Extend display name string size

Typically this is a number between 0 and 32. Just that the compiler doesn't
know that well. Make the string buffer a bit larger, so that it fits the
longer integers. Fixes build warnings like:

../subprojects/wayland/src/wayland-server.c: In function ‘wl_display_add_socket_auto’:
../subprojects/wayland/src/wayland-server.c:1649:70: error: ‘%d’ directive output may be truncated writing between 1 and 11 bytes into a region of size 8 [-Werror=format-truncation=]
 1649 |                 snprintf(display_name, sizeof display_name, "wayland-%d", displayno);
      |                                                                      ^~
../subprojects/wayland/src/wayland-server.c:1649:61: note: directive argument in the range [-2147483647, 32]
 1649 |                 snprintf(display_name, sizeof display_name, "wayland-%d", displayno);
      |                                                             ^~~~~~~~~~~~
../subprojects/wayland/src/wayland-server.c:1649:17: note: ‘snprintf’ output between 10 and 20 bytes into a destination of size 16
 1649 |                 snprintf(display_name, sizeof display_name, "wayland-%d", displayno);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Seen in GTK CI.

Signed-off-by: Carlos Garnacho <carlosg@gnome.org>
22 months agoDocument which type are nullable, and wire format for null value
Ian Douglas Scott [Wed, 13 Jul 2022 04:23:55 +0000 (21:23 -0700)]
Document which type are nullable, and wire format for null value

Signed-off-by: Ian Douglas Scott <idscott@system76.com>
22 months agoDo not allow nullable `new_id`
Ian Douglas Scott [Thu, 14 Jul 2022 15:36:21 +0000 (08:36 -0700)]
Do not allow nullable `new_id`

The usefulness of this is limited, and `libwayland-client` doesn't
provide a way to pass a null `new_id` since the id is generated by the
library and given to the caller as the return value.

Signed-off-by: Ian Douglas Scott <idscott@system76.com>
22 months agoDo not allow nullable arrays, which were not correctly implemented
Ian Douglas Scott [Tue, 12 Jul 2022 16:12:33 +0000 (09:12 -0700)]
Do not allow nullable arrays, which were not correctly implemented

Nullable arrays, which are not used anywhere, were marshalled the same
way as an empty non-null array. The demarshalling logic did not
recognize anything as a null array. Given this, it seems better to just
explicitly not support it.

Fixes https://gitlab.freedesktop.org/wayland/wayland/-/issues/306.

Signed-off-by: Ian Douglas Scott <idscott@system76.com>
22 months agoAdd release.sh
Simon Ser [Sat, 28 May 2022 08:07:12 +0000 (10:07 +0200)]
Add release.sh

Replace xorg-util-modular's release script with our own, tailored
for Wayland only. Does the same thing but in 71 lines of code
instead of 1k. Creates a GitLab release via glab instead of trying
to upload to a web server via ssh.

Signed-off-by: Simon Ser <contact@emersion.fr>
23 months agobuild: re-open main branch for regular development
Simon Ser [Thu, 30 Jun 2022 22:11:50 +0000 (00:11 +0200)]
build: re-open main branch for regular development

23 months agobuild: bump to version 1.21.0 for the official release upstream_work_20230216 1.21.0 upstream/1.21.0
Simon Ser [Thu, 30 Jun 2022 21:59:11 +0000 (23:59 +0200)]
build: bump to version 1.21.0 for the official release

23 months agoprotocol: minor clarification for axis_discrete events
Peter Hutterer [Fri, 24 Jun 2022 03:45:58 +0000 (13:45 +1000)]
protocol: minor clarification for axis_discrete events

Explicitly spell out that multiple axis_discrete events *for the same axis*
within the same wl_pointer.frame are not permitted.

References: https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/911#note_1438099

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
23 months agoutil: set errno when hitting WL_MAP_MAX_OBJECTS
Simon Ser [Tue, 28 Jun 2022 09:59:26 +0000 (11:59 +0200)]
util: set errno when hitting WL_MAP_MAX_OBJECTS

Callers may check errno when wl_map_insert_* functions return an
error (since [1]). Make sure it's always set to a meaningful value
when returning an error, otherwise callers might end up checking an
errno coming from a completely different function.

[1]: https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/205

Signed-off-by: Simon Ser <contact@emersion.fr>
Fixes: b19488c7154b ("util: Limit size of wl_map")

23 months agobuild: bump to version 1.20.93 for the RC1 release 1.20.93
Simon Ser [Thu, 23 Jun 2022 19:59:18 +0000 (21:59 +0200)]
build: bump to version 1.20.93 for the RC1 release

23 months agoserver: warn about global filtering consistency
Simon Ser [Wed, 15 Jun 2022 08:37:18 +0000 (10:37 +0200)]
server: warn about global filtering consistency

The filtering needs to be static given a client and a global,
otherwise libwayland will misbehave.

Signed-off-by: Simon Ser <contact@emersion.fr>
References: https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/241#note_1421888

23 months agoserver: add PID race condition disclaimer to wl_client_get_credentials
Simon Ser [Tue, 31 May 2022 17:23:38 +0000 (19:23 +0200)]
server: add PID race condition disclaimer to wl_client_get_credentials

PIDs are re-used and cannot be used to reliably check the identity of
a Wayland client.

Signed-off-by: Simon Ser <contact@emersion.fr>
23 months agotests: add a test for dynamic filtered globals
Simon Ser [Thu, 12 May 2022 17:30:38 +0000 (19:30 +0200)]
tests: add a test for dynamic filtered globals

Ensure dynamically created and destroyed globals which are filtered
don't trigger any global/global_remove event.

Signed-off-by: Simon Ser <contact@emersion.fr>
23 months agoserver: check visibility before sending global/global_remove
Simon Ser [Thu, 12 May 2022 17:29:11 +0000 (19:29 +0200)]
server: check visibility before sending global/global_remove

See the previous discussion at [1]: libwayland incorrectly skips
the visibility checks when sending global/global_remove events.
The check is only performed when a client performs a
wl_display.get_registry request.

[1]: https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/148

Signed-off-by: Simon Ser <contact@emersion.fr>
23 months agocursor/os-compatibility: handle EINTR gracefully
Olivier Fourdan [Mon, 30 May 2022 07:14:04 +0000 (09:14 +0200)]
cursor/os-compatibility: handle EINTR gracefully

If os_resize_anonymous_file() called from os_create_anonymous_file()
fails with EINTR (Interrupted system call), then the buffer allocation
fails.

To avoid that, retry posix_fallocate() on EINTR.

However, in the presence of an alarm, the interrupt may trigger
repeatedly and prevent a large posix_fallocate() to ever complete
successfully, so we need to first block SIGALRM to prevent this.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
23 months agobuild: bump to version 1.20.92 for the beta release 1.20.92
Simon Ser [Thu, 9 Jun 2022 18:52:32 +0000 (20:52 +0200)]
build: bump to version 1.20.92 for the beta release

Signed-off-by: Simon Ser <contact@emersion.fr>
23 months agoclient: Lock display when setting a proxy event queue
Alexandros Frantzis [Thu, 26 May 2022 09:18:28 +0000 (12:18 +0300)]
client: Lock display when setting a proxy event queue

Assignments to a wl_proxy's queue member are currently not synchronized
with potential reads of that member during event reading/queuing.
Assuming atomic pointer value reads and writes (which is a reasonable
assumption), and using the documented best practices to handle event
queue changes, a queue change should still be safe to perform.

That being said, such implicitly atomic accesses are difficult to assess
for correctness, especially since they do not introduce memory barriers.

To make the code more obviously correct, and handle any potential races
we are not currently aware of, this commit updates wl_proxy_set_queue()
to set the proxy's event queue under the display lock (all other
proxy queue accesses are already done under the display lock).

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Suggested-by: Pekka Paalanen <pekka.paalanen@collabora.com>
23 months agoclient: Document best practices for event queue changes
Alexandros Frantzis [Thu, 26 May 2022 09:05:15 +0000 (12:05 +0300)]
client: Document best practices for event queue changes

Document the proper way to deal with event queue changes, in order to
guarantee proper handing of all events which were queued before the
queue change takes effect, especially in multi-threaded setups.

Make a special note about queue changes of newly created proxies,
which require the use of a proxy wrapper for thread safety.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Suggested-by: Pekka Paalanen <pekka.paalanen@collabora.com>
23 months agoCheck that XDG base directories paths are absolute
Antonin Décimo [Fri, 11 Mar 2022 13:08:49 +0000 (14:08 +0100)]
Check that XDG base directories paths are absolute

The [spec][1] reads:

> All paths set in these environment variables must be absolute. If an
> implementation encounters a relative path in any of these variables it should
> consider the path invalid and ignore it.

and

> If $XDG_DATA_HOME is either not set or empty, a default equal to
> $HOME/.local/share should be used.

Testing that the path is absolute also entails that is is non-empty.

[1]: https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html

Signed-off-by: Antonin Décimo <antonin.decimo@gmail.com>
23 months agocursor/os-compatibility: fix trailing space
Simon Ser [Sat, 4 Jun 2022 20:58:50 +0000 (22:58 +0200)]
cursor/os-compatibility: fix trailing space

Signed-off-by: Simon Ser <contact@emersion.fr>
23 months agocursor/os-compatibility: remove strcpy/strcat usage
Simon Ser [Sat, 4 Jun 2022 20:56:36 +0000 (22:56 +0200)]
cursor/os-compatibility: remove strcpy/strcat usage

These functions don't perform bounds checking, so they are easy to
misuse and complicate audits.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: move xcursor_theme_inherits declarations at the top
Simon Ser [Fri, 27 May 2022 15:52:35 +0000 (17:52 +0200)]
cursor: move xcursor_theme_inherits declarations at the top

Per code style, declarations need to be at the start of the block.

And make l const while at it.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: drop xcursor_add_path_elt
Simon Ser [Fri, 27 May 2022 15:49:10 +0000 (17:49 +0200)]
cursor: drop xcursor_add_path_elt

Just use snprintf instead. It doesn't really matter if we have
some duplicate slashes in filenames.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: drop unused XCursor comment declarations
Simon Ser [Fri, 27 May 2022 15:17:42 +0000 (17:17 +0200)]
cursor: drop unused XCursor comment declarations

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: fix indentation of xcursor_load_theme declaration
Simon Ser [Fri, 27 May 2022 15:16:17 +0000 (17:16 +0200)]
cursor: fix indentation of xcursor_load_theme declaration

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: simplify xcursor_library_path
Simon Ser [Fri, 27 May 2022 15:14:24 +0000 (17:14 +0200)]
cursor: simplify xcursor_library_path

- Use early returns
- De-duplicate XDG_DATA_HOME code-paths
- Don't crash on allocation failure
- Use size_t when appropriate
- Fix indentation

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: remove unnecessary ifs in xcursor_load_theme
Simon Ser [Fri, 27 May 2022 15:09:48 +0000 (17:09 +0200)]
cursor: remove unnecessary ifs in xcursor_load_theme

load_all_cursors_from_dir and xcursor_theme_inherits already have
the NULL checks we want.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: drop xcursor_images_set_name
Simon Ser [Fri, 27 May 2022 15:07:08 +0000 (17:07 +0200)]
cursor: drop xcursor_images_set_name

We don't ever need to set the name multiple times for a single
struct xcursor_images, so we can just set the field directly. Also
replace the hand-rolled logic with strdup.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: use getline instead of fgets
Simon Ser [Fri, 27 May 2022 14:54:49 +0000 (16:54 +0200)]
cursor: use getline instead of fgets

This avoids storing 8KiB on the stack, and removes the line length
limit.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: remove unnecessary parentheses in load_all_cursors_from_dir
Simon Ser [Fri, 27 May 2022 14:03:16 +0000 (16:03 +0200)]
cursor: remove unnecessary parentheses in load_all_cursors_from_dir

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: remove xcursor_file_load_images wrapper
Simon Ser [Fri, 27 May 2022 14:01:42 +0000 (16:01 +0200)]
cursor: remove xcursor_file_load_images wrapper

It's just calling xcursor_xc_file_load_images.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agobuild: bump to version 1.20.91 for the alpha release 1.20.91
Simon Ser [Thu, 26 May 2022 18:15:35 +0000 (20:15 +0200)]
build: bump to version 1.20.91 for the alpha release

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agoMeson: Override wayland-scanner if it can be run
Xavier Claessens [Mon, 4 Apr 2022 13:34:33 +0000 (09:34 -0400)]
Meson: Override wayland-scanner if it can be run

This allows projects to use Wayland as a Meson subproject and get the
wayland-scanner executable when doing find_program('wayland-scanner').

Signed-off-by: Xavier Claessens <xavier.claessens@collabora.com>
2 years agoutil: fix code block language in docs
Simon Ser [Thu, 5 May 2022 10:18:16 +0000 (12:18 +0200)]
util: fix code block language in docs

Without {.xml}, Doxygen interprets the code as C. See [1] for
details.

[1]: https://www.doxygen.nl/manual/commands.html#cmdcode

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: rename local variables to snake case
Simon Ser [Thu, 21 Apr 2022 10:01:19 +0000 (12:01 +0200)]
cursor: rename local variables to snake case

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: drop xcursor_file abstraction
Simon Ser [Thu, 21 Apr 2022 09:57:31 +0000 (11:57 +0200)]
cursor: drop xcursor_file abstraction

Just use FILE * directly instead.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: refactor xcursor_theme_inherits
Simon Ser [Thu, 21 Apr 2022 09:53:24 +0000 (11:53 +0200)]
cursor: refactor xcursor_theme_inherits

Use early returns and breaks to avoid dealing with very long
indentation lines.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: convert macros to functions
Simon Ser [Thu, 21 Apr 2022 09:48:49 +0000 (11:48 +0200)]
cursor: convert macros to functions

Improves readability since there's no need for so many parentheses
anymore, adds type safety. The compiler will inline the function
automatically as necessary.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: rename functions to snake case
Simon Ser [Thu, 21 Apr 2022 09:45:20 +0000 (11:45 +0200)]
cursor: rename functions to snake case

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: fix whitespace in function args definitions
Simon Ser [Thu, 21 Apr 2022 09:31:45 +0000 (11:31 +0200)]
cursor: fix whitespace in function args definitions

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: remove struct typedefs, rename to snake case
Simon Ser [Thu, 21 Apr 2022 09:29:08 +0000 (11:29 +0200)]
cursor: remove struct typedefs, rename to snake case

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: fix spacing around conditions and loops
Simon Ser [Thu, 21 Apr 2022 09:17:12 +0000 (11:17 +0200)]
cursor: fix spacing around conditions and loops

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: fix indentation
Simon Ser [Sun, 17 Apr 2022 15:40:55 +0000 (17:40 +0200)]
cursor: fix indentation

Use tabs.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: remove unnecessary if before free
Simon Ser [Sun, 17 Apr 2022 15:30:05 +0000 (17:30 +0200)]
cursor: remove unnecessary if before free

free(NULL) is valid and is a no-op.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: fix variable declaration style
Simon Ser [Sun, 17 Apr 2022 15:28:44 +0000 (17:28 +0200)]
cursor: fix variable declaration style

Use a single space between type and variable name.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: fix struct declaration style
Simon Ser [Sun, 17 Apr 2022 15:20:33 +0000 (17:20 +0200)]
cursor: fix struct declaration style

Use tabs for indentation, don't use tabs to align field names.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: fix define style
Simon Ser [Sun, 17 Apr 2022 15:19:31 +0000 (17:19 +0200)]
cursor: fix define style

Don't use tabs, don't align.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: drop whitespace before parens in function calls
Simon Ser [Sun, 17 Apr 2022 15:10:53 +0000 (17:10 +0200)]
cursor: drop whitespace before parens in function calls

This is in line with the rest of the Wayland code style.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: drop XCURSOR_LIB_* defines
Simon Ser [Sun, 17 Apr 2022 15:02:49 +0000 (17:02 +0200)]
cursor: drop XCURSOR_LIB_* defines

These are unused.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: drop XcursorTrue and XcursorFalse
Simon Ser [Sun, 17 Apr 2022 15:01:18 +0000 (17:01 +0200)]
cursor: drop XcursorTrue and XcursorFalse

Just use <stdbool.h> instead.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: remove private Xcursor int typedefs
Simon Ser [Sun, 17 Apr 2022 14:57:15 +0000 (16:57 +0200)]
cursor: remove private Xcursor int typedefs

Just use the types directly instead.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agoserver: add wl_global_get_version
Simon Ser [Thu, 12 May 2022 17:01:26 +0000 (19:01 +0200)]
server: add wl_global_get_version

Add a helper to check the advertised version of a global. This can
be handy when checking whether a compositor feature is supported,
instead of having to store the version passed to wl_global_create
separately.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agoutil: Limit size of wl_map
Derek Foreman [Fri, 28 Jan 2022 19:18:37 +0000 (13:18 -0600)]
util: Limit size of wl_map

Since server IDs are basically indistinguishable from really big client
IDs at many points in the source, it's theoretically possible to overflow
a map and either overflow server IDs into the client ID space, or grow
client IDs into the server ID space. This would currently take a massive
amount of RAM, but the definition of massive changes yearly.

Prevent this by placing a ridiculous but arbitrary upper bound on the
number of items we can put in a map: 0xF00000, somewhere over 15 million.
This should satisfy pathological clients without restriction, but stays
well clear of the 0xFF000000 transition point between server and client
IDs. It will still take an improbable amount of RAM to hit this, and a
client could still exhaust all RAM in this way, but our goal is to prevent
overflow and undefined behaviour.

Fixes #224

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2 years agodocs/publican: ensure output encoding is UTF-8
Simon Ser [Tue, 10 May 2022 15:21:11 +0000 (17:21 +0200)]
docs/publican: ensure output encoding is UTF-8

Without this, DocBook picks the output encoding and on some setups
we end up with ISO-8859-1. Tested by booting a fresh Alpine VM,
verifying that the generated HTML is using the incorrect charset,
applying the patch, and verifying that the generated HTML is fixed.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agobuild: sanity check options
Simon Ser [Thu, 5 May 2022 09:14:00 +0000 (11:14 +0200)]
build: sanity check options

Fail when tests/documentation is enabled without libraries. Fail
when neither scanner nor libraries is enabled, because we don't
build anything in that case.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agocursor: use MAP_FAILED instead of hardcoded constant
Simon Ser [Fri, 6 May 2022 19:57:24 +0000 (21:57 +0200)]
cursor: use MAP_FAILED instead of hardcoded constant

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agoRemove publish-doc
Simon Ser [Thu, 5 May 2022 09:24:11 +0000 (11:24 +0200)]
Remove publish-doc

We don't use this script anymore.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agowl_shell is not mandatory
Demi Marie Obenour [Tue, 5 Oct 2021 14:06:07 +0000 (10:06 -0400)]
wl_shell is not mandatory

Even though it is part of wayland.xml, wl_shell is not mandatory for
compositors to implement, and may be removed in a future version.

Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
2 years agoos: drop unnecessary memcpy in wl_os_mremap_maymove
Simon Ser [Tue, 29 Mar 2022 08:16:17 +0000 (10:16 +0200)]
os: drop unnecessary memcpy in wl_os_mremap_maymove

FreeBSD doesn't support mremap [1], so we have a fallback
implementation based on munmap+mmap. We memcpy from the old memory
region to the new one, however this is unnecessary because the new
mapping references the same file as the old one.

Use msync to make sure any pending write is flushed to the underlying
file before we map the new region.

[1]: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=59912

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agoshm: Close file descriptors not needed
Olivier Fourdan [Mon, 10 Jan 2022 14:10:07 +0000 (15:10 +0100)]
shm: Close file descriptors not needed

Commit 5a981ee8 implemented a fallback path for platforms which do not
support mremap() such as FreeBSD.

To do so, the file descriptor for the mmap() is not closed immediately
but instead kept as long as the pool exists.

That induces more file descriptors kept open for longer, which in turn
may cause problems as wl_shm may be using a lot of file descriptors,
especially with Xwayland which can create a lot of pixmaps on behalf of
its X11 clients.

For platforms where mremap() is available, keeping those file
descriptors opened is a bit of a waste and may cause exhaustion of file
descriptors sooner that before commit 5a981ee8.

Only keep the mmap() file descriptor open on platforms which do not
implement mremap()  and close it immediately as before on others.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1283

2 years agoconnection: change clen type in build_cmsg to size_t
Sigrid Solveig Haflínudóttir [Tue, 29 Mar 2022 16:51:15 +0000 (18:51 +0200)]
connection: change clen type in build_cmsg to size_t

To avoid implicit conversion since msg_control's type is size_t.

Signed-off-by: Sigrid Solveig Haflínudóttir <ftrvxmtrx@gmail.com>
2 years agoconnection: fix asan report on sendmsg call
Sigrid Solveig Haflínudóttir [Tue, 29 Mar 2022 15:59:15 +0000 (17:59 +0200)]
connection: fix asan report on sendmsg call

Initialiaze the entire msghdr struct to 0 before use.

Example of the report fixed with this change:

AddressSanitizer:DEADLYSIGNAL
=================================================================
==20035==ERROR: AddressSanitizer: SEGV on unknown address 0x2dad4dbffffa0d (pc 0x0055555c7488 bp 0x007fffffc760 sp 0x007fffffc760 T0)
==20035==The signal is caused by a READ memory access.
    #0 0x55555c7488 in read_msghdr(void*, __sanitizer::__sanitizer_msghdr*, long) (/home/ftrvx/w/_/uxn/bin/uxnemu+0x77488)
    #1 0x55555c810c in sendmsg (/home/ftrvx/w/_/uxn/bin/uxnemu+0x7810c)
    #2 0x7ff7f2db20 in wl_connection_flush /home/ftrvx/q/wayland/build/../src/connection.c:315:10
    #3 0x7ff7f2d014 in wl_display_flush /home/ftrvx/q/wayland/build/../src/wayland-client.c:2154:9
    #4 0x7ff7e80bc0  (/lib/libSDL2-2.0.so.0+0x104bc0)
    #5 0x7ff7e523b0  (/lib/libSDL2-2.0.so.0+0xd63b0)
    #6 0x7ff7e534e4  (/lib/libSDL2-2.0.so.0+0xd74e4)
    #7 0x7ff7e535e8  (/lib/libSDL2-2.0.so.0+0xd75e8)
    #8 0x7ff7daad54  (/lib/libSDL2-2.0.so.0+0x2ed54)
    #9 0x7ff7dab130  (/lib/libSDL2-2.0.so.0+0x2f130)
    #10 0x555565bb40 in main /home/ftrvx/w/_/uxn/src/uxnemu.c:519:2
    #11 0x7ff7f62484 in libc_start_main_stage2 /builddir/musl-1.1.24/src/env/__libc_start_main.c:94:2

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/home/ftrvx/w/_/uxn/bin/uxnemu+0x77488) in read_msghdr(void*, __sanitizer::__sanitizer_msghdr*, long)
==20035==ABORTING

Signed-off-by: Sigrid Solveig Haflínudóttir <ftrvxmtrx@gmail.com>
2 years agomeson: Use proper type for bools
illiliti [Sat, 2 Apr 2022 13:32:46 +0000 (16:32 +0300)]
meson: Use proper type for bools

Fix invalid usage of bools which violates official meson specification and thus
breaks muon, an implementation of meson written in C.

Signed-off-by: illiliti <illiliti@protonmail.com>
2 years agoserver: introduce wl_signal_emit_mutable
Simon Ser [Mon, 31 Jan 2022 22:09:26 +0000 (23:09 +0100)]
server: introduce wl_signal_emit_mutable

wl_signal_emit doesn't handle well situations where a listener removes
another listener. This can happen in practice: wlroots and Weston [1]
both have private helpers to workaround this defect.

wl_signal_emit can't be fixed without breaking the API. Instead,
introduce a new function. Callers need to make sure to always remove
listeners when they are free'd.

[1]: https://gitlab.freedesktop.org/wayland/weston/-/merge_requests/457

Signed-off-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
2 years agoprotocol: add the wl_pointer.axis_value120 events
Peter Hutterer [Tue, 31 Mar 2020 03:47:04 +0000 (13:47 +1000)]
protocol: add the wl_pointer.axis_value120 events

These events are for high-resolution wheels. Each logical wheel click
represents an axis value120 value of 120, fractions of a wheel click an
integer fraction thereof. The new event replaces
wl_pointer.axis_discrete for wl_pointer versions 8 and above.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2 years agoclient, server: handle wl_map_insert_new() failures
Aleksandr Mezin [Wed, 9 Feb 2022 00:26:18 +0000 (06:26 +0600)]
client, server: handle wl_map_insert_new() failures

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>
2 years agoutil: set errno in wl_map_insert_at()
Aleksandr Mezin [Tue, 8 Feb 2022 23:36:11 +0000 (05:36 +0600)]
util: set errno in wl_map_insert_at()

And add errno checks in callers, where it seems to be necessary.

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>
2 years agoutil: set errno in wl_map_reserve_new()
Aleksandr Mezin [Tue, 8 Feb 2022 22:10:42 +0000 (04:10 +0600)]
util: set errno in wl_map_reserve_new()

And also fix wl_connection_demarshal() to pass through that errno.

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>
2 years agoutil: always check result of wl_array_add()
Aleksandr Mezin [Wed, 26 Jan 2022 13:16:55 +0000 (19:16 +0600)]
util: always check result of wl_array_add()

Not checking the result of wl_array_add() can cause writes past the end of the
allocated buffer if realloc fails.

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>
2 years agobuild: use get_variable(pkgconfig) instead of get_pkgconfig_variable()
Simon Ser [Tue, 8 Mar 2022 12:58:17 +0000 (13:58 +0100)]
build: use get_variable(pkgconfig) instead of get_pkgconfig_variable()

We don't get a warning for it yet, but get_pkgconfig_variable() is
deprecated.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agobuild: specify native arg in add_languages()
Simon Ser [Tue, 8 Mar 2022 12:57:23 +0000 (13:57 +0100)]
build: specify native arg in add_languages()

Fixes the following warning:

    WARNING: add_languages is missing native:, assuming languages are wanted for
    both host and build.

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agobuild: use full_path() instead of path()
Simon Ser [Tue, 8 Mar 2022 12:56:32 +0000 (13:56 +0100)]
build: use full_path() instead of path()

Fixes the following warning:

    WARNING: Project targeting '>= 0.56.0' but tried to use feature deprecated
    since '0.55.0': ExternalProgram.path. use ExternalProgram.full_path() instead

Signed-off-by: Simon Ser <contact@emersion.fr>
2 years agoconnection: Make wl_closure_print output atomic
Alexander Irion [Mon, 7 Mar 2022 14:49:49 +0000 (15:49 +0100)]
connection: Make wl_closure_print output atomic

When multiple threads are used, output from different threads was intermixed in one line. That what breaking parsing of the log messages. Now, intermixing is prevented by using a memstream.

Signed-off-by: Alexander Irion <alexander_irion@mentor.com>