There are many reasons why trying to handle malloc() returning NULL by
any other way than calling abort() is not beneficial:
- Usually malloc() does not return NULL, thanks to memory overcommit.
Instead, the program gets SIGSEGV signal when it tries to access the
memory.
- Trying to handle NULL will create failure paths that are impractical
to test. There is no way to be sure the compositor still works once
such path is actually taken.
- Those failure path will clutter the code, increasing maintenance and
development burden.
- Sometimes there just isn't a good way to handle the failure.
For more discussion, see the issue link below.
Closes: https://gitlab.freedesktop.org/wayland/weston/-/issues/631
Signed-off-by: Pekka Paalanen <pekka.paalanen@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>
Moving forward we're going to be supporting libseat and logind as our
only launchers. We're doing this to reduce our maintenance burden,
and security impact.
Libseat supports all our existing use cases, and seatd can replace
weston-launch so we no longer have to carry a setuid-root program.
This patch removes weston-launch, and launcher-direct, leaving only
libseat and logind.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Users should rely on wayland-info from wayland-utils [1] instead.
We've been printing a deprecation since 85382d394a ("clients:
deprecate weston-info"), so users should be aware already.
[1]: https://gitlab.freedesktop.org/wayland/wayland-utils/
Signed-off-by: Simon Ser <contact@emersion.fr>
The doc website is currently hidden in the Wayland homepage. Add
an explicit link in the README.
While at it, rename the section about documentation. "Weston" is
already in the repository name and the top oif the README, so no
need to repeat here.
Signed-off-by: Simon Ser <contact@emersion.fr>
weston-info is now deprecated in favor of wayland-info which is part of
wayland-utils.
Add a note to weston-info to inform users that weston-info is deprecated
and will be removed soon.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
This client contains driver-specific code to allocate buffers. However clients
shouldn't contain driver-specific code and should rely on e.g. mesa to allocate
buffers via standard interfaces.
Additionally, because the build system always tries to enable all features, some
experimental drivers and drivers that aren't included in amd64 distribution
packages were required. Users would need to manually disable some drivers.
Releasers would need to install libdrm from source (because the release process
forbids adding custom build flags). Dropping simple-dmabuf-drm simplifies both
building and releasing.
The functionality previously tested via simple-dmabuf-drm can now be tested with
simple-dmabuf-egl.
Signed-off-by: Simon Ser <contact@emersion.fr>
Found while being parsed by doxygen (when used recursively), this fixes
the markdown bits as to be displayed properly.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
configure.ac is no more, and in meson.build there are no minor or patch
versions for libweston, only major.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Explain how to use with Meson, as autotools is going away.
The instructions have been copied from
https://wayland.freedesktop.org/building.html .
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Make it official that libweston will export the weston_config API, as requested
in https://gitlab.freedesktop.org/wayland/weston/merge_requests/29 .
There is no other way third party helper clients could access the API.
The autotools build has been accidentally exporting it all the time, but the
Meson build needed fixing.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Move the README file to Markdown, and update it to attempt to explain
the current status and use of Weston.
The first sections are user-facing, so they can quickly understand what
Weston is, what it does, what it doesn't do, and how to go about using
it. The following sections on libweston and for distribution packagers
are left intact, but should probably be moved to separate documents.
This includes a screenshot of Weston running weston-terminal, Chrome and
simple-egl, which was taken by myself and subject to the same licensing
terms as the rest of the tree.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Pekka Paalanen