Commit graph

149 commits

Author SHA1 Message Date
Xaver Hugl
2817e7581f backends/drm: fix legacy cursor 2021-12-09 15:48:58 +00:00
Julius Zint
9537ea6d16 Use SmoothPixmapTransform when drawing cursor
This solves the pixelated look of the cursor under wayland, if the
scaling is set to a fractional value.
2021-12-09 16:04:31 +01:00
Xaver Hugl
b526b35e9d backends/drm: refactor legacy cursor
This commit does away with the special handling of the legacy cursor and
makes it be applied directly in DrmPipeline, using the same state as the
atomic cursor and without dirty flags.
2021-12-09 10:05:16 +01:00
Xaver Hugl
7e2bd5a773 backends/drm: refactor DrmPipeline
Split out more things from commitPipelines, and split out the legacy stuff
into a separate file
2021-12-08 21:39:38 +01:00
Vlad Zahorodnii
358b45a4f2 Remove some no longer relevant KWIN_UNIT_TEST ifdefs 2021-12-08 16:29:55 +00:00
Xaver Hugl
494ef1c930 backends/drm: port cursors to atomic
The cursor being set out-of-band with atomic commits creates problems
because it can create false positive for atomic tests, if the cursor
state gets changed in between an atomic test and its matching commit.

This commit also ports the cursor to a swapchain instead of only one
image. This is not strictly required but may prevent artifacts and
will be needed for future optimisations.
2021-12-08 17:06:02 +01:00
Vlad Zahorodnii
2b628ea412 backends/drm: Mark frame failed if presenting null buffer
If eglSwapBuffers() fails, there won't be a buffer and so we need to
mark the frame as failed. Otherwise, the screen can be frozen.

eglSwapBuffers() can fail if some effect calls makeOpenGLContext()
between RenderBackend::beginFrame() and RenderBackend::endFrame(), which
is the case with the zoom effect. It can set wrong draw surface in
ZoomEffect::recreateTexture()

BUG: 445412
2021-12-03 08:06:37 +00:00
Xaver Hugl
8d08306c48 backends/drm: support dmabuf-feedback
dmabuf-feedback allows the compositor to give the clients better feedback on what
formats and modifiers they should use, and for which device they should allocate.
This way they can reallocate for scanout whenever the compositor tells them to,
which makes direct scanout work for a lot more devices and applications.
2021-11-30 10:46:06 +00:00
Xaver Hugl
f097440eb4 backends/drm: don't cache formats
While it could be useful with tiled displays, the isFormatSupported and
supportedModifier functions can be called before prepareModeset, so where
m_formats is still empty. Additionally they're neither in a hot path nor
performance critical.
2021-11-30 10:29:51 +01:00
Xaver Hugl
1f79f421b4 backends/drm: only enforce modifiers default for surface creation
Whether or not we want to use explicit modifiers for our surfaces doesn't
matter for what format+modifiers drm planes support. This way direct scanout
works by default, without having to explicitly enable modifiers
2021-11-29 18:28:29 +00:00
Aleix Pol
5f16757090 libinput: Make sure we don't crash if we start without an output 2021-11-29 17:51:49 +01:00
Xaver Hugl
15993fa6bb backends/drm: fix KWIN_DRM_NO_AMS env var
It currently makes the session not start at all
2021-11-29 14:53:11 +00:00
Vlad Zahorodnii
4a1d5ea53c backends/drm: Improve PauseDevice/ResumeDevice signal handling
systemd takes care of setting and dropping master permissions when
sending PauseDevice and ResumeDevice signals.

When the ResumeDevice signal is received, the relevant drm device should
already have master permissions set up.

On the other hand, when the active property changes, there's still a
chance that systemd haven't granted drm master permissions to us.
2021-11-25 15:06:49 +00:00
Xaver Hugl
3a5cb1c441 backends/drm: only set pageflipPending when wanted
It shouldn't be set when the pipeline wants to be disabled. Whenever that
happens it will wait forever for the pageflip that doesn't come
2021-11-25 15:44:59 +01:00
Vlad Zahorodnii
9f93358bc1 backends/drm: Notify about failed frames if there are actually pending frames
In case a modeset needs to be performed, the drm backend will test all
pipelines to ensure that new mode won't cause any bandwidth issues on
other outputs, etc.

To do that, it may delay presenting frames. If the new configuration
doesn't work, it needs to notify about failed frames.

However, the relevant code that notifies the RenderLoop about failed
atomic commits doesn't check if there's actually a pending modeset
present.

When switching between VTs, systemd can revoke master permissions from
kwin. To make things even more trickier, kwin can try to present a frame
in that short time span.
2021-11-25 11:15:50 +02:00
Vlad Zahorodnii
ec5950aedb Rename EffectQuickScene to OffscreenQuickScene
EffectQuickScene is not used strictly by effects, aurorae decorations
use it too to render window decorations.

This change renames the EffectQuickView/Scene to
OffscreenQuickView/Scene to clear up the naming scheme.
2021-11-23 09:53:18 +00:00
Xaver Hugl
c4dcbb40d6 properly fix bsd build 2021-11-22 13:15:01 +00:00
Xaver Hugl
912b7d0b02 fix freebsd build 2021-11-22 13:36:57 +01:00
Xaver Hugl
c4d50e984f backends/drm: drop some unused stuff in DrmGpu 2021-11-22 11:30:31 +00:00
Xaver Hugl
95f64a7ac7 backends/drm: drop DrmBackend as a friend of DrmOutput
It's unused
2021-11-22 11:30:31 +00:00
Xaver Hugl
cd8a7ac0b0 backends/drm: don't make DrmGpu a friend of DrmOutput
Making the constructor and updateModes private isn't necessary
2021-11-22 11:30:31 +00:00
Xaver Hugl
6cea76bfaf backends/drm: inline DrmPipeline::updateProperties
It's only used in one place
2021-11-22 11:30:31 +00:00
Xaver Hugl
3e24bc008a backends/drm: force soft cursor if image creation fails
If the soft cursor is only set but not forced then KWin will try to update
cursors again, making it go into code paths that will crash.

BUG: 445507
2021-11-22 08:43:29 +00:00
Xaver Hugl
50c39e202b backends/drm: properly check for vrr property with legacy
BUG: 445907
2021-11-22 09:00:50 +01:00
David Edmundson
38348a006b [backends/x11] Fix typo causing crash 2021-11-19 13:20:48 +00:00
Xaver Hugl
8528bbf800 backends/drm: ignore placholder outputs for the output config
They can only introduce intermediary state when a real output gets enabled
and are not relevant to the actual output config
2021-11-16 17:08:08 +01:00
Xaver Hugl
b6b0af727d backends/drm: don't take crtcs from dpms disabled outputs
Fixes a crash I have with dpms + suspend, which was caused by the udev
event for updating outputs being called before the output got enabled
again. When DrmGpu::updateOutputs got called it removed the crtc from
the inactive output and then disabled the output afterwards. Instead,
only remove crtcs if an output is really disabled.
This also allows to generalize the logic for lease outputs, and could
in the future allow for faster dpms on/off switching.
2021-11-16 17:05:31 +01:00
Xaver Hugl
47d5d50bdf backends/drm: don't assume we have a cursor plane
CCBUG: 445507
2021-11-16 16:16:30 +01:00
Vlad Zahorodnii
7228e9aefd Unify beginFrame() and endFrame() hooks for OpenGL and QPainter backends
This unifies frame hooks for OpenGL and QPainter render backends. There
are a couple of reasons why it's a good idea - it provides one mental
framework to start painting a frame, the Compositor will be able to
start and submit frames. The last one is very cool because it gives the
Compositor more power over compositing.

Besides unifying frame hooks, this cleans up a bit the arg naming mess
in endFrame(). As is, "damage" and "damagedRegion" are very confusing
names. "damage" arg has been renamed to "renderedRegion," because that's
what it is. The renderedRegion arg specifies the region that has been
repainted by the Scene. It's different from the damagedRegion as that
one specifies the surface damage, i.e. the difference between the
current and the next frame, while the renderedRegion may include a
region that had to be repainted to repair the back buffer. The main
reason why we need renderedRegion is the X11 platform. On Wayland, it's
unused.

In the future, we will need to extend this api with output layers.
2021-11-16 10:43:56 +00:00
Xaver Hugl
0afd0aa4be backends/drm: some simplifications for multi gpu
There is only one type of egl backend now, so the abstract backend can be
removed
2021-11-12 09:30:13 +01:00
Xaver Hugl
c68f7f13f3 backends/drm,wayland: require gbm
The ifdefs for have_gbm obfuscate the code unnecessarily - the drm backend
is not a great experience with qpainter, so in practice noone should ship
it without gbm anyways.
2021-11-12 08:25:15 +00:00
Vlad Zahorodnii
6d0cca5c7f Move all dirty region scene repaint scheduling to Scene
The Compositor contains nothing that can potentially get dirty and need
repainting.

As is, the advantages of this move aren't really noticeable, but it
makes sense with multiple scenes.

Backend parts are far from ideal, they can be improved later on as we
progress with the scene redesign.
2021-11-11 11:33:04 +02:00
Xaver Hugl
bad5752110 platforms/drm: kill the EglStreams backend
The proprietary NVidia driver now supports gbm, which vastly improves the
user experience. For older devices that will not get gbm support dropping
EglStreams will likely not have a big impact as it has several session breaking
issues anyways.

By removing the backend a lot of logic can be simplified, most notably multi-gpu.
2021-11-10 11:43:36 +00:00
Xaver Hugl
23d9341f6f platforms/drm: remove property blob handling from DrmProperty
It's no longer used
2021-11-09 22:15:31 +01:00
Xaver Hugl
3f62ea44dd platforms/drm: move gamma blob ownership to DrmPipeline::Gamma 2021-11-09 22:15:31 +01:00
Vlad Zahorodnii
02bb276ebf platforms/drm: Move ownership of mode blob to connector mode
The main motivation behind this change is to move management of drm
blobs out of property wrappers in specialized wrappers to simplify state
management with blobs.

Connector mode blobs are created on demand.
2021-11-09 22:15:31 +01:00
Xaver Hugl
1b5009ae2b platforms/drm: improve logging a bit
Only print the flags once for all pipelines and include changed unused objects
as well.
2021-11-09 22:15:31 +01:00
Xaver Hugl
7283c98f27 platforms/drm: disable unused resources on modesets
When we switch CRTCs it can happen that a CRTC would stay enabled yet has
no connectors anymore. In this case the kernel may reject our atomic commit,
which would cause the modeset to fail. To counteract that, properly disable
unused drm objects
2021-11-09 22:15:31 +01:00
Xaver Hugl
102fb3d5f2 platforms/drm: keep disconnected DrmConnectors around 2021-11-09 22:15:31 +01:00
Xaver Hugl
a07aae8282 platforms/drm: delay presentation for modesets
Currently KWin is combining modesets with presentation, which causes problems
when multiple monitors are used and crtcs need to be switched around, because
taking away a CRTC from another output causes the driver to disable the
other output. In order to avoid such problems, delay presentation until
all pipelines are ready to present and then do a modeset with a single atomic
commit. To process the resulting page flip events properly this commit also
ports KWin to page_flip_handler2 and changes how the pageFlipped and
notifyFrameFailed signals are processed.
2021-11-09 22:15:31 +01:00
Xaver Hugl
e2a0863843 platforms/drm: more dynamic crtc assignment
Hardware constraints limit the number of crtcs and which connector + crtc
combinations can work together. The current code is searching for working
combinations when a hotplug happens but that's not enough, it also needs
to happen when the user enables or disables outputs and when modesets are
done, and the configuration change needs to be applied with a single atomic
commit.

This commit removes the hard dependency of DrmPipeline on crtcs by moving
the pending state of outputs from the drm objects to DrmPipeline itself,
which ensures that it's independent from the set of drm objects currently
used. It also changes requests from KScreen to be applied truly atomically.
2021-11-09 22:15:31 +01:00
Vlad Zahorodnii
1d96b41bb4 build: Move software vsync helpers to libkwin
Compile software vsync helpers into libkwin for the consistency sake
with other helpers.
2021-11-09 18:15:32 +00:00
Aleix Pol
c1e9cc283d Implement Primary Displays on the wayland session
Adopts the kde_outputmanagement_v2 hooks for it
2021-11-09 16:55:39 +00:00
Vlad Zahorodnii
3485eb6200 cmake: Move base render backend classes to libkwin
This allows using base opengl backends in libkwin, which can be useful
later on for the purpose of moving the ownership of render backends from
the Scene class to the Compositor class.
2021-11-08 18:27:22 +00:00
Xaver Hugl
6ff4de2e05 port everything away from Q_FOREACH 2021-11-08 14:19:05 +00:00
Vlad Zahorodnii
3eb5fa18fb backends/x11: Remove unused KWaylandServer includes 2021-11-02 11:40:30 +02:00
Vlad Zahorodnii
2870e4295b backends/wayland: Remove unused KWaylandServer includes 2021-11-02 11:39:37 +02:00
Vlad Zahorodnii
d89501a079 Move platform backends to backends directory
This improves file organization in kwin by putting backends in a single
directory.

It also makes easier to discover kwin's low level components for new
contributors because the plugins directory may come as the last place to
look for. When one hears "plugin", the first thing that comes to mind is
regular plugins, not low level backends.
2021-11-02 09:02:41 +00:00
Vlad Zahorodnii
94de28bfbe Move input backends in their own directory 2021-11-01 16:27:16 +02:00