When we're selecting our renderer, use the enum rather than two
mutually-exclusive booleans to not use the no-op renderer.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Instead of passing --shell=foo-shell.so, just pass --shell=foo, whilst
accepting the old form for compatibility.
Whilst we're at it, document the --shell argument in the manpage and
README.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Use parse_simple_mode() to allow configuring the VNC framebuffer size
with a mode property in weston.ini, like this:
[output]
name=vnc
mode=1280x720
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
To make it reusable, extract parse_simple_mode() from
wet_configure_windowed_output_from_config().
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
While the --backend parameter looks like it takes a file name, it really
is selected from a list of supported strings that are then funneled
through a translation to enum weston_compositor_backend [1].
Because all backend parameters are of the form "...-backend.so", and
writing "--backend=...-backend.so" is boring, allow the --backend option
to match the backend name without "-backend.so" suffix instead.
For example, this allows to use "--backend=headless" instead of
"--backend=headless-backend.so".
Update help text and documentation. Keep the old way working for
backwards compatibility.
[1] 50dbf38514 ("libweston: use enum to choose the backend")
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Replicating the policy of the old screenshooting interface, allow all
screenshot to anyone with the new interface as well when --debug is
used.
Looks like there was one stray trailing space in unrelated code that my
editor deleted. Better this way.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Some monitors expose a selector for the kind of content that will get
displayed, allowing them to optimise their settings for this particular
content type.
I got access to such a monitor, sadly even setting it to game mode
didn’t lower its atrocious latency, but drm_info[1] reports it to be set
correctly so hopefully it’ll work better with other monitors.
[1] https://github.com/ascent12/drm_info
Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
This adds basic VNC protocol support using the Neat VNC library
(https://github.com/any1/neatvnc). Neat VNC depends on the AML main
loop library. The backend makes use of AML's integrated epoll backend
and connects AML via file descriptor with the Wayland event loop.
This implementation does not support authentication and hardcodes the
pixel format currently.
Co-authored-by: Philipp Zabel <p.zabel@pengutronix.de>
Co-authored-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Stefan Agner <stefan@agner.ch>
[r.czerwinski@pengutronix.de:
- use new (as of 0.5.0) Neat VNC buffer API, with a buffer pool]
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
[p.zabel@pengutronix.de:
- transform repaint damage to output coordinates
- transform pointer coordinates into global space
- check that outputs and heads are in fact ours, see aab722bb1785..060ef82d9360
- track damage across multiple frame buffers
- choose pixel format by drm_fourcc, see 8b6c3fe0ad
- enable ctrl and alt modifiers
- fix frame timing to achieve a constant repaint rate
- pass initial size explicitly, see f4559b0760
- use resize_output with pixman-renderer, see 55d08f9634e8..84b5d0eb4bee
- allow configuring the refresh rate]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Except the module dir path, they're one and the same. This change
warrants a libweston version bump, if it hasn't been done already.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Fixes the following warnings when building with _FORTIFY_SOURCE
and optimizations enabled:
../shared/xalloc.h:49:9: error: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
49 | write(STDERR_FILENO, oommsg, strlen(oommsg));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
or
../compositor/main.c:427:25: error: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
427 | write(STDERR_FILENO, fail_seteuid,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
428 | strlen(fail_seteuid));
| ~~~~~~~~~~~~~~~~~~~~~
../compositor/main.c:434:25: error: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
434 | write(STDERR_FILENO, fail_cloexec,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
435 | strlen(fail_cloexec));
| ~~~~~~~~~~~~~~~~~~~~~
../compositor/main.c:442:25: error: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Werror=unused-result]
442 | write(STDERR_FILENO, fail_exec, strlen(fail_exec));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
As things are, even when mode=current is specified on the .ini file,
a full modeset is needed (and done), which causes a very noticeable
screen blinking. That is because setting the max_bpc on a connector
needs full modesetting.
The idea here is that if mode=current on the .ini, no modesetting
should be done, so the current max_bpc is programmed into the
connector.
But if a custom max-bpc=... is specified, that will be used instead,
even if mode=current on the .ini
Fixes: https://gitlab.freedesktop.org/wayland/weston/-/issues/660
Signed-off-by: vanfanel <redwindwanderer@gmail.com>
The supplied path for executing the shell client could contain potential
arguments and not only the binary itself. Specifying the platform either
by using an argument (-platform wayland) or using an environmental
variable (QT_QPA_PLATFORM) with clients written in Qt is for instance
an example on why this might be useful to have in.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
When the gl-renderer is not enabled, weston fails to start, as it
doesn't automatically fallback to the pixman renderer, which is
always enabled.
This commit changes the drm-backend to set by default the --use-pixman
option to true when the gl-renderer is disabled (BUILD_DRM_GBM is not
defined).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This is pretty counter-intuitive, and should probably happen outside of
the core in the front end while configuring the outputs.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This is so the systemd-notify module, if used, will notify readiness after
we're ready to accept X connections, instead of before.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This is awkward and long deprecated, and makes us load xwayland after all
the other modules so we know if we have to load it or not. Let's remove it.
We do still need to prevent loading the module the wrong way, though.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
[common equivalent of 77cf8cb006 in Xwayland from Pekka Paalanen; its
commit message follows]
Between fork() and exec() in the child process it is only safe to use
async-signal-safe functions. weston_log() definitely is not one, it
allocates memory and does whatnot.
weston_log() is also inappropriate for other reasons: the child process
has its own stream buffers and flight-recorder. No-one looks into the
child process' flight recorder, so messages would be lost there. The
logging machinery might also attempt to write into debug streams,
meaning both parent and child could be writing simultaneously.
It seems that the best we can do is to pre-bake an error message and
only write() it out if exec() fails. There is no mention that even
strerror_r() might be safe to call, so we don't.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Use the custom_env framework we added for Xwayland when forking to
execute clients. This avoids calling the unsafe getenv in between fork
and exec.
Signed-off-by: Daniel Stone <daniels@collabora.com>
It was only a small function, and inlining it will allow us to make it
more safe without having to duplicate a ton of stuff.
Signed-off-by: Daniel Stone <daniels@collabora.com>
This doesn't actually stop us from calling setenv() in between fork()
and exec() when starting clients, but gets us closer to Xwayland's safe
implementation by reusing one of the helpers it added.
Signed-off-by: Daniel Stone <daniels@collabora.com>
This patch fixes the following:
AddressSanitizer:DEADLYSIGNAL
=================================================================
==528956==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc 0x7fbc5d66bdd7 bp 0x7ffd465573c0 sp 0x7ffd46557398 T0)
==528956==The signal is caused by a WRITE memory access.
==528956==Hint: address points to the zero page.
#0 0x7fbc5d66bdd7 in wl_list_remove ../../git/wayland/src/wayland-util.c:56
#1 0x7fbc5cb8869e in wxw_compositor_destroy ../../git/weston/compositor/xwayland.c:357
#2 0x7fbc5baf3ca6 in weston_signal_emit_mutable ../../git/weston/shared/signal.c:62
#3 0x7fbc5ba4d6f9 in weston_compositor_destroy ../../git/weston/libweston/compositor.c:8639
#4 0x7fbc5cb7a5f2 in wet_main ../../git/weston/compositor/main.c:3772
#5 0x55bd13de2179 in main ../../git/weston/compositor/executable.c:33
#6 0x7fbc5be61d09 in __libc_start_main ../csu/libc-start.c:308
#7 0x55bd13de2099 in _start (/home/pq/local/bin/weston+0x1099)
The problem is triggered by configuring a bad path to Xwayland in
weston.ini, which causes exec() to fail. The fork() succeeded though,
which means the weston_process was already on the watch list, and the
watch can be handled, making sigchl_handler() leave the link
uninitialized.
Making sure the link remains removable fixes this.
Fixes: 18897253d4
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This way the backends will the actual outputs. And at that point the backend
knows the compositor is shutting down so it can handle this differently if
necessary.
Afterwards wet_compositor_destroy_layout() just deletes the remaining
datastructures.
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
For working around hardware limitations as explained in the man page.
Now added for completeness' sake without knowing if anyone will ever
need this.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
To support heterogeneous outputs, the output must be created by the
same backend as the head(s) it is created for. Solve this by always
creating an output with a first head to attach that determines the
backend to use. Skip already attached first heads in drm_try_attach().
See: https://gitlab.freedesktop.org/wayland/weston/-/issues/268
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Add a struct weston_head parameter to weston_compositor_create_output()
and fold weston_compositor_create_output_with_head() into it.
See: https://gitlab.freedesktop.org/wayland/weston/-/issues/268
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This adds an option to program basic display color characteristics from
weston.ini. In the future there will be a way to set this information
from EDID, but because EDID is unreliable that will probably not be the
default. An ICC profile will likely override most or all of this. The
main reason to add this option is to be able to characterise HDR
monitors.
An 'output' section can have a key 'color_characteristics' (string)
set to a name. The name refers to any 'color_characteristics' section
with 'name' set to the same string.
The 'name' key of a 'color_characteristics' section cannot contain a
colon ':'. Names with colon in 'output' section key
'color_characteristics' value are reserved for future use, e.g. to
indicate that the metadata is to be taken from EDID instead of a
weston.ini section.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
We currently hardcode a 60Hz update rate for the rdp backend.
In some cases it may be useful to override this to increase the rate
for a faster monitor, or to decrease it to reduce network traffic.
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>
We already have a way for a single RDP client connection to be
passed from a parent process to a child using a combination
of environment variable (RDP_FD) and env var (--env-socket)
This patch allows a bound socket fd (as opposed to a client
connection) to be established in a parent process and provided
to the rdp backend. WSLg uses this to set up an AF_VSOCK
socket for communication between a Windows RDP client and a
weston compositor running under a hypervisor.
Co-authored-by: Hideyuki Nagase <hideyukn@microsoft.com>
Co-authored-by: Steve Pronovost <spronovo@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>
There are currently compatibility issues between FreeRDP's implementation
of the RemoteFX codec and Microsoft's implementation.
Perhaps this will be fixed in the future and this option can go away,
but for now it's necessary to have a way to disable the codec if the
windows client is going to be connecting to a weston server.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
When we launch clients they currently stay in the same session as
weston, and share its controlling terminal. This means hitting ctrl-c
in weston's controlling terminal will send SIGINT to the clients as
well. It also means SIGHUP will be propagated to our launched clients
if weston's controlling terminal is closed.
While generally not harmful, this behaviour is not beneficial, and
is present by default and not by design.
Problems arise when launching weston in a debugger, as a ctrl-c sent to
the debugger will be propagated not only to the debugger, but all the child
processes sharing weston's session. This results in weston-desktop-shell
being killed by the ctrl-c that was intended to stop weston for debugging.
If weston-desktop-shell is killed within 30 second of startup, it will
result weston performing a clean shutdown. This clean shutdown can
make debugging a little too surprising.
Ostensibly, clients launched via weston_client_launch will be wayland
clients that terminate cleanly on their own if weston is killed, so
there should be no need for them to remain in weston's session to
catch ctrl-c from its controlling terminal. Nor should they need a
controlling terminal for their general operation.
Use setsid() to move them to their own session, devoid of controlling
terminal, to make using a debugger a little less confusing in some
cases.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
signalfd interacts badly with gdb's signal trapping - when hitting
ctrl-c in a debugger attached to weston, weston will receive the
signal. This results in weston exiting cleanly when the intent
was to use gdb to interfere with its operation.
Trapping SIGINT was introduced in commit 50dc6989 which ensured we
would call wl_display_terminate() on SIGINT or SIGTERM to clean
up our socket.
Killing weston with SIGINT is quite common for several developers,
so it's important to preserve this clean shutdown behaviour, so
we can't naively stop trapping SIGINT entirely.
Instead, use the sigaction() function to trap SIGINT, and have
the SIGINT handler send weston SIGUSR2 (SIGUSR1 is already
used by xwayland). SIGUSR2 can be trapped in the proper wayland
way via wl_event_loop_add_signal(). This way we can properly
break our event loop and clean up on SIGINT, but we can also
have gdb intercept SIGINT.
There are other ways around this, but I'm hoping this one allows
people to continue using ctrl-c to stop weston, and doesn't
require additional project specific gdb knowledge.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
We've been trapping SIGQUIT for a "clean shutdown" since commit 3cad436a
However, sources such as:
http://www.gnu.org/software/libc/manual/html_node/Termination-Signals.html
indicate we probably shouldn't be trapping it at all, as the intent of
SIGQUIT is to leave a core file and debug artifacts from the run.
We should perform the minimal amount of clean up to ensure the system isn't
left in an unusable state - but these days that's performed by other
software such as logind.
We can safely stop trapping SIGQUIT entirely.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
We could overflow a local buffer if there were more than ten million
concurrently active displays within the current user's session. This
seems vanishingly unlikely, and harmless, but does at least squash a
compiler warning emitted by gcc 12+.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Fbdev backend was deprecated in the Weston 10.0.0 release with
6338dbd581. Before that, I suggested
already in 2019 to remove it, but it was too soon then. Now it seems the
final voices asking for fbdev to be kept have been satisfied, see the
linked issue.
Fbdev-backend uses a kernel graphics UAPI (fbdev) which is sub-par for a
Wayland compositor: you cannot do GPU accelerated graphics in any
reasonable way, no hotplug support, multi-output support is tedious, and
so on. Most importantly, Linux has deprecated fbdev a long time ago due
to the UAPI fitting modern systems and use cases very poorly, but cannot
get rid of it if any users remain. Let's do here what we can to reduce
fbdev usage.
I am doing color management related additions to libweston which require
adding checks to every backend. One backend less is less churn to write
and review.
Libweston major version has already been bumped to 11, so the next
release will be Weston 11, without fbdev. enum weston_compositor_backend
entries change their numerical values.
Fixes: https://gitlab.freedesktop.org/wayland/weston/-/issues/581
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This doesn't work with any of the launchers we've kept. Remove the option
and all the bits that handle it.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Make it slightly easier to disambiguate clients when we log the protocol
stream from the server side.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Leak found running drm-smoke-test with ASan.
Do not forget to free string specific_device in load_drm_backend().
Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
This adds "icc_profile" key support in [output] sections for backends
headless, x11, wayland, and drm, and also for remoted and pipewire
outputs FWIW. On the other hand, RDP-backend does not use output
sections from weston.ini, and fbdev-backend does not deserve anything
new (it wouldn't support color management anyway due to no GL-renderer).
This allows one to configure an ICC v2 or v4 file to be used as an
output profile. However, color-lcms does not actually use output
profiles yet, so trying this will fail until support is implemented.
The parent_winsys_profile argument is reserved for using the color
profile from a parent window system where applicable, if nothing else is
set in weston.ini. None of the nested backends provide an output color
profile yet. It is more of a reminder of a missing feature than a
serious implementation.
Note: cms-static Weston plugin uses the exact same weston.ini key for
loading VCGT from ICC profiles. If "color-management" option is set to
false, this new use of "icc_profile" is disabled and the old behavior
with cms-static is kept.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Add a command line option to disable the default flight recorders
so we can save a little bit of CPU and memory on systems where
this isn't necessary.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
The value of the `path` parameter is executed right before
wl_display_run.
The `watch` parameter is meant for things like tests using
the headless backend and the kiosk shell.
Fixes https://gitlab.freedesktop.org/wayland/weston/-/issues/171
Signed-off-by: Alvarito050506 <donfrutosgomez@gmail.com>
Daniel Stone