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>
Many years ago (2014) systemd-logind was brought into libsystemd.
We've supported old versions of systemd-logind ever since.
Let's remove support for old versions of systemd-logind before the
merge for a tiny code simplification.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Zoom is a neat trick, but in its current form it's very hard to test
and maintain.
It also causes output damage to scale outside of the output's boundaries,
which leads to an extra clipping step that's only necessary when zoom
is enabled.
Remove it to simplify desktop-shell and compositor.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This ensures that users that previously set the option explicitly will also have
a chance to notice the deprecation.
Signed-off-by: Kenny Levinsen <kl@kl.wtf>
weston-launch will be removed in a future release as this feature has
been offloaded to libseat and seatd-launch. Print an early deprecation
warning to give existing users time to migrate.
Signed-off-by: Kenny Levinsen <kl@kl.wtf>
Conditionally build support when libdrm is at least 2.4.107 to make use
of it. Plug it in when printing out the buffer information.
With this in, we add a hard dependecy for libweston to link against
libdrm.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
This creates the color-lcms plugin that in the future will be using
Little CMS as the color matching module, processing ICC profiles, and
producing HDR tone mappings.
Right now, this new plugin is functionally equivalent to the no-op color
manager, except it already links to lcms2 and checks that the renderer
supports color operations.
Color-lcms is a libweston plugin that is loaded with explicit
weston_compositor API. This does not currently allow loading alternative
color manager plugins. External color manager plugins might be
considered in the future when the libweston APIs around color management
stabilize.
This libweston plugin uses the same build option as the old cms-static
Weston plugins, as they both need lcms2. The minimum version for lcms2
was chosen by what Debian Buster provides today and for no other reason.
This plugin intends to support the Wayland CM&HDR protocol extension and
hence sets supports_client_protocol to true. This will expose the
protocol extension to clients when it gets implemented.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
See: https://gitlab.freedesktop.org/wayland/weston/-/issues/467#note_814985
This starts building the framework required for implementing color
management.
The main new interface is struct weston_color_manager. This commit also
adds a no-op color manager implementation, which is used if no other
color manager is loaded. This no-op color manager simply provides
identity color transforms for everything, so that Weston keeps running
exactly like before.
weston_color_manager interface is incomplete and will be extended later.
Colorspace objects are not introduced in this commit. However, when
client content colorspace and output colorspace definitions are
combined, they will produce color transformations from client content to
output blending space and from output blending space to output space.
This commit introduces a placeholder struct for color transforms,
weston_color_transform. Objects of this type are expected to be heavy to
create and store, which is why they are designed to be shared as much as
possible, ideally making their instances unique. As color transform
description is intended to be generic in libweston core, renderers and
backends are expected to derive their own state for each transform
object as necessary. Creating and storing the derived state maybe be
expensive as well, more the reason to re-use these objects as much as
possible. E.g. GL-renderer might upload a 3D LUT into a texture and keep
the texture around. DRM-backend might create a KMS blob for a LUT and
keep that around.
As a color transform depends on both the surface and the output, a
transform object may need to be created for each unique pair of them.
Therefore color transforms are referenced from weston_paint_node. As
paint nodes exist for not just surface+output but surface+view+output
triplets, the code ensures that all paint nodes (having different view)
for the same surface+output have the same color transform state.
As a special case, if weston_color_transform is NULL, it means identity
transform. This short-circuits some checks and memory allocations, but
it does mean we use a separate member on weston_paint_node to know if
the color transform has been initialized or not.
Color transformations are pre-created at the weston_output
paint_node_z_order_list creation step. Currently the z order lists
contain all views globally, which means we populate color transforms we
may never need, e.g. a view is never shown on a particular output.
This problem should get fixed naturally when z order lists are
constructed "pruned" in the future: to contain only those paint nodes
that actually contribute to the output's image.
As nothing actually supports color transforms yet, both renderers and
the DRM-backend assert that they only get identity transforms. This
check has the side-effect that all surface-output pairs actually get a
weston_surface_color_transform_ref even though it points to NULL
weston_color_transform.
This design is inspired by Sebastian Wick's Weston color management
work.
Co-authored-by: Sebastian Wick <sebastian@sebastianwick.net>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Add struct weston_drm_format, which contains a DRM format and a list of
modifiers. The patch also adds struct weston_drm_format_array and some
helper functions to handle these two new structs: init/fini, find
elements, add elements, etc.
This will be useful in the next commits in which we add support to
dmabuf-hints. It also allows a cleanup in the DRM-backend, where we
currently have a similar struct in drm_plane but with no helper
functions, so the code to handle it is scattered throughout the
functions and there is a lot of repetition.
This patch is based on previous work of Scott Anderson (@ascent).
Signed-off-by: Scott Anderson <scott.anderson@collabora.com>
Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
This adds support for libseat as a seat backend. libseat provides seatd,
(e)logind and direct seat backends as compile-time and runtime options.
The backend is currently disabled by default. It can be enabled through the
launcher-libseat option.
Signed-off-by: Kenny Levinsen <kl@kl.wtf>
Make the libweston dependency objects pull in only those secondary dependencies
that are actually used in the API. This way in-tree users of libweston link to
fewer libraries needlessly, and it matches better what external users get via
pkg-config.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
We have two kinds of libweston users: internal and external. Weston, the
frontend, counts as an external user, and should not have access to libweston
private headers. The shell plugins are external users as well, because we
intend people to be able to write them. Renderers, backends, and some plugins
are internal users who will need access to private headers.
Create two different Meson dependency objects, one for each kind.
This makes it less likely to accidentally use a private header.
Screen-share is a Weston plugin and therefore counts as an external user, but
it needs the backend API to deliver input. Until we are comfortable exposing
public API for that purpose, let it use internal headers.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Define common_inc which includes both public_inc and the project root directory.
The project root directory will allow access to config.h and all the shared/
headers.
Replacing all custom '.', '..', '../..', '../shared' etc. include paths with
common_inc reduces clutter in the target definitions and enforces the common
#include directive style, as e.g. including shared/ headers without the
subdirectory name no longer works.
Unfortunately this does not prevent one from using private libweston headers
with the usual include pattern for public headers.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
matrix.c needs to be built differently for a test program vs. everything else,
so it cannot be in a helper lib. Instead, make a dependency object for it for
easy use which always gets all the paths correct automatically.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Like a black box in an airplane, the flight recorder can be used to
accumulate data and, when needed, to display its contents.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
With the logging infrastructure in place this patch add a new user: file
type of stream backed-up by a std file descriptor.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
This patch adds the content-protection protocol implementation, to
enable a weston client application to request for content-protection
for its content via HDCP.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
The xdg-output resources are listed in each head struct. They become idle when
the respective weston_output has been removed again. The client is supposed to
destroy them explicitly afterwards.
After starting an XWayland client xrandr displays the logical size as expected.
Signed-off-by: Roman Gilg <subdiff@gmail.com>
Move the DRM-backend into a new sub-directory to make it stand out from
libweston core. This facilitates splitting drm.c into more files later.
vaapi-recorder is used only by DRM-backend, move that too.
libbacklight is used only by DRM-backend and a manual test program, and is
moved as well.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Right now only used by the DRM-backend, but there is a test program that should
use this as well.
This helps with building the test program and moving DRM-backend into a
subdirectory.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Rather than having fbdev and drm backends include the libinput files ad hoc,
wrap them in a static library. Using the dependency object for that helper
library will then automatically pull in any necerray include dirs for the
users.
This helps with moving the backends into subdirectories.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
GL-renderer is expected to grow more files, both by addition and by splitting.
Moving them into a new subdirectory helps people to understand which files are
relevant.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This is an internal export for GL-renderer, so that it does not need to build
linux-sync-file.c a second time. This follows the example of
linux-explicit-synchronization.c which is also used by GL-renderer.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Making this into a dependency object not only carries the .c files with it, but
it also brings the include directories as well, which means the users can
simply use the object without guessing the paths.
This should help with moving GL-renderer into a new subdirectory.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
It is a public installed header used by libweston.h.
See "Rename compositor.h to libweston/libweston.h" for rationale.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
It is a public installed header used by libweston.h.
See "Rename compositor.h to libweston/libweston.h" for rationale.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
matrix.h is a public installed header and even used by libweston.h.
See "Rename compositor.h to libweston/libweston.h" for rationale.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
The backend headers are renamed from compositor-foo.h to backend-foo.h to
better describe their purpose. These headers are public libweston API for each
specific backend.
The headers will also be used like
#include <libweston/backend-drm.h>
instead of
#include <compositor-drm.h>
to give them a more explicit namespace.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
The main idea is to make libweston users use the form
#include <libweston/libweston.h>
instead of the plain
#include <compositor.h>
which is prone to name conflicts. This is reflected both in the installed
files, and the internal header search paths so that Weston would use the exact
same form as an external project using libweston would.
The public headers are moved under a new top-level directory include/ to make
them clearly stand out as special (public API).
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This patch sets up the stage for similarly renaming compositor.h which will
justify this. That patch will be big, so moving timeline-object.h first makes
it easy to see the changes to the build and install directives.
This and all the following moves essentially break the API, so libweston major
is bumped.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
These are not specific to the launchers but to compositor.h, so name them that
way.
Once we can rely on the mentioned Meson PR, we can simplify this further.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
All the GBM code is unconditional in compositor-drm.c, so while disabling the
GL-renderer would stop GBM from being used, GBM headers would still be needed
for building and GBM library for linking.
Leave a note to fix it properly later. At least we now check for GBM and do not
mislead with the error message.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
../libweston/compositor-rdp.c: In function ‘rdp_peer_refresh_rfx’:
../libweston/compositor-rdp.c:213:25: error: invalid type argument of unary ‘*’ (have ‘SURFACE_BITS_COMMAND’ {aka ‘struct _SURFACE_BITS_COMMAND’})
memset(&cmd, 0, sizeof(*cmd));
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
If the 'renderer-gl' option is enabled, ENABLE_EGL is defined, and
libweston/pixel-formats.c includes EGL/egl.h. This requires an egl
dependency, as X11-less platforms need the MESA_EGL_NO_X11_HEADERS
define from egl.pc cflags:
In file included from /usr/include/EGL/egl.h:39:0,
from ../libweston/pixel-formats.c:42:
/usr/include/EGL/eglplatform.h:124:10: fatal error: X11/Xlib.h: No such file or directory
compilation terminated.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Pekka Paalanen
Derek Foreman
Kenny Levinsen
Marius Vlad
Leandro Ribeiro
Ankit Nautiyal
Roman Gilg
Philipp Zabel