Summary:
Currently, we have only one shell client type - XdgShellClient. We use
it when we are dealing with Wayland clients. But it isn't really a good
idea because we may need to support shell surfaces other than xdg-shell
ones, for example input panel surfaces.
In order to make kwin more extensible, this change replaces all usages
of the XdgShellClient class with the AbstractClient class.
Test Plan: Existing tests pass.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: davidedmundson, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27778
Summary:
This functionality will instead be implemented in KScreen such that manual and
automatic output rotation can be used and configured through a single UI in
unison together.
Test Plan: Compiles.
Reviewers: #kwin, davidedmundson, zzag
Reviewed By: #kwin, zzag
Subscribers: kwin, bshah, davidedmundson, zzag
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26036
Summary:
The calculation of cursor position and orientation on outputs rotations other
than 0° and 180° was faulty.
This patch fixes both.
Test Plan: In live session cursor looks and moves as expected.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25909
Summary:
The previous code uses a fixed version of GSLS which does not match our suported GL targets. We need both, using kwin's existing MapTexture framework we can achieve the same thing in a better way with less code.
Test Plan:
Had some slight issues with the rotation, but everything appeared the same
as when I applied the patchset with the custom shader.
Reviewers: #kwin, zzag
Reviewed By: #kwin, zzag
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26371
Summary:
In case the hardware is not able to rotate the output for the configured
rotation value do this rotation in a post-process step.
For that rendering the current view into a separate framebuffer bound to a
texture that then gets sampled to the default framebuffer in an additional
rendering pass through a simple shader rotating it.
This allows us to leave the Effects system and internal model-view-projection
matrix untouched. The rotation in the post-processing step is isolated.
BUG: 389665
FIXED-IN: 5.18
Test Plan: With KScreen all rotations work.
Reviewers: #kwin
Subscribers: davidedmundson, PureTryOut, z3ntu, zzag, univerz, kwin
Tags: #kwin
Maniphest Tasks: T6106
Differential Revision: https://phabricator.kde.org/D25907
Summary:
Planes might be able to do transformations without compositing required.
When changing the current transform try this with the primary plane. If this
fails fall back to no transformation at all through hardware and communicate
the fact and other information through some getters.
Also adds an environment variable to never do hardware transformations.
Test Plan: Compiles.
Reviewers: #kwin
Subscribers: zzag, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25906
Test Plan:
KScreen now shows "Dell Inc." instead of DEL and
"Eizo Nano Corporation" instead of ENC in output names, which
matches closer to what's written on my monitors.
Reviewers: graesslin, davidedmundson, #plasma
Reviewed By: davidedmundson, #plasma
Subscribers: apol, feverfew, ngraham, davidedmundson, mart, kwin, sebas
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D10041
Summary:
Use of "style: Text.Raised" combined with UTF-8 emoji characters
currently crashes deep in font rendering code.
A report has been submitted upstream:
https://bugreports.qt.io/browse/QTBUG-82311
Given this crash is surprisingly common, this patch removes the text
shadow. I normally would be against removing features, but this was a
subtle effect anyway and frankly just made things look blurry. I doubt
it'll be missed.
BUG: 417699
BUG: 413179
Test Plan:
Made unit test for the crash in qmlscene
Fixed the issue there
Reviewers: #kwin, zzag
Reviewed By: #kwin, zzag
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27488
Summary:
QDateTime::fromMSecSinceEpoch uses Qt::LocalTime by default. This involves an
expensive localtime conversion. So instead force things to use UTC, as there
is no need for timezone information when tracking durations.
This is especially noticeable on Bedrock Linux, which uses a Fuse mounted
/etc, which is slower than a plain /etc and causes quite some slowdown there.
See https://github.com/bedrocklinux/bedrocklinux-userland/issues/140 for
details.
Test Plan: The screenedge unit test still passes.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: zzag, anthonyfieroni, davidedmundson, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27114
Summary:
If a client has been resized, it doesn't necessarily mean that the
decoration theme will schedule full repaint of the window frame. In
OpenGL and Xrender scene, we have a little hack that forces a full
repaint of window borders. However, we don't have one in QPainter
scene which causes all sorts of weird looking artifacts when resizing
a server-side decorated client.
We could add yet another hack in the QPainter scene, but a better
approach to tackle this problem would be to make DecoratedClient
schedule a full repaint of the decoration. It makes code in scene
plugins more straightforward and prevents us from repeating the same
mistake again.
Test Plan:
No longer able to see invisible decoration borders when
using QPainter render backend.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: davidedmundson, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26927
Summary:
Prefer qobject_cast<> over Toplevel::isClient() because it's more type
safer and makes code a bit more readable.
Hopefully, one day we will be able to get rid of isClient() altogether.
Test Plan: Compiles.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26541
Summary:
Legacy OpenGL 1 compositing backend had been dropped quite a while ago
so some of OpenGL scene classes can be merged back.
Test Plan: Compiles, windows are rendered as before.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: davidedmundson, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26700
Summary:
This change ensures that KWin can be built with a version of KWS that
doesn't have any deprecated stuff. I assume that no distro ships such
builds of KWS and it's only a developer thing.
I didn't backport KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE macro because
the next release of Plasma (5.18) depends on KF 5.66.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26642
Summary:
Scene opengl has a callback for when we have a GL error. One of the
handlers for an error calls scheduleVboReInit the history shows it was a
forerunner to the GLX_NV_robustness_video_memory_purge but resetting
only one tiny part based on debug output.
When we get here we schedule a reset of the vertex buffer, via a timer.
When the timer is caled we have no idea what GL context was last
current, if it's not the currect context then the main scene
GLVertexBuffer will be deleted but not correctly re-initialised.
We have two very common crashes with a corrupted
GLVertexBuffer::streamingBuffer() which would match up perfectly.
Given that we now have a proper mechanism to reset the entire scene, we
don't need this timer based hack and resolve that problem.
BUG: 399499
BUG: 372305
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26556
Summary:
Quite long time ago, window decorations were painted on real X11 windows.
The nicest thing about that approach is that we get both contents of the
client and the frame window at the same time. However, somewhere around
KDE 4.2 - 4.3 times, decoration rendering architecture had been changed
to what we have now.
I've mentioned the previous decoration rendering design because it didn't
have a problem that the new design has, namely the texture bleeding issue.
In the name of better performance, opengl scene puts all decoration parts
to an atlas. This is totally reasonable, however we must be super cautious
about things such as the GL_LINEAR filter.
The GL_LINEAR filter may need to sample a couple of neighboring texels
in order to produce the final texel value. However, since all decoration
parts now live in a single texture, we have to make sure that we don't
sample texels that belong to another decoration part.
This patch fixes the texture bleeding problem by padding each individual
decoration part in the atlas. There is another solution for this problem
though. We could render a window into an offscreen texture and then map
that texture on the transformed window geometry. This would work well and
we definitely need an offscreen rendering path in the opengl scene,
however it's not feasible at the moment since we need to break the window
quads API. Also, it would be great to have as less as possible stuff going
on between invocation of Scene::Window::performPaint() and getting the
corresponding pixel data on the screen.
There is a good chance that the new padding stuff may make you vomit. If
it does so, I'm all ears for the suggestions how to make the code more
nicer.
BUG: 257566
BUG: 360549
CCBUG: 412573
FIXED-IN: 5.18.0
Reviewers: #kwin
Subscribers: fredrik, kwin, fvogt
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25611
Summary:
We currently see a gap on transformed windows between the window and the
top decoration.
This is partly the atlas bleed on the decoration, and partly a bleed on
the window content itself.
On X11, the window we composite is the frame window - which is a larger
texture containing a transparent border where the frame normally would
be. When we sample with a linear filter we include these texels. Hence
GL_CLAMP_TO_EDGE doesn't work.
Vlad's patch to composite the correct window, not the frame was my
preferred approach, but we had to revert it as it caused an issue with
xwayland :(
Half pixel correction nearly worked, but caused blurry fonts.
This patch resolves it in the fragment shader used by effects doing
transforms. We pass the real texture geometry of the window to the
client with a half pixel correction. Any samples outside the outer half
pixel are then clamped within bounds.
Arguably a hack, but solves the problem in a comparatively
non-invasive way.
BUG: 360549
BUG: 257566
Test Plan:
X11:
Using Vlad's atlas padding for decoration
Slowed animations, wobbled a dark window over a light background
No artifacts
Wayland:
This isn't needed. Now tested that everything still renders the same.
Reviewers: #kwin, zzag
Reviewed By: #kwin, zzag
Subscribers: zzag, jgrulich, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25737
Summary:
Set outputs enablement also when none outputs are present. This patch is
similar to earlier attempt at D17985.
BUG: 402827
BUG: 389551
BUG: 398680
BUG: 413758
Test Plan:
Starting without outputs, manual disconnects and DPMS changes. There is still
an issue when an output gets disconnected while the DPMS is off. But it's an
improvement already.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: kwin
Tags: #kwin
Maniphest Tasks: T10016
Differential Revision: https://phabricator.kde.org/D26511
Summary:
The GLX backend might need a combination of swap and composite timer events for
continous painting.
The reason for that is that if the buffer age extension is not available we
fall back to copies in case not the whole screen is repainted.
The timer logic is adapted to make this possible in a lean way what cleans up
the Compositor class in several ways.
Test Plan: Tested on X11 (with/without swap events, buffer age enabled) and Wayland.
Reviewers: #kwin
Subscribers: hurikhan77, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26216
Summary:
I could never reproduce the crash, but we know from gdb that it's from
the decorationSettings object
We are setting the same QObject instance as a context property in
multiple contexts at once. This is already slightly odd especially from the POV of
Qt's internal property cache.
Given we want one object to be exposed to all contexts, we can expose it
to the parent context only once and achieve the same result in a simpler
way.
BUG: 411166
Test Plan:
Verified opening and closing system settings still worked for me.
I could never reproduce the original crash.
Reviewers: #kwin, ngraham
Reviewed By: ngraham
Subscribers: ngraham, apol, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25913
Summary:
The buffer shape is in buffer-local coordinates and must be mapped to
window coordinates. After that, we are free to map it to the global screen
coordinates.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25733
Summary:
Activate intel swap events by default if available. They were hidden behind an
environmental variable because of some critical release blocking issue years
ago.
Manual testing indicates that there are no issues anymore with this extension.
Since it allows us to use swap events with MESA drivers for optimized repaints
enable swap events by default again.
For now leave a modified environment variable to switch back to using no swap
events easily.
CCBUG: 342582
Test Plan: i915
Reviewers: #kwin
Subscribers: zzag, broulik, kwin
Tags: #kwin
Maniphest Tasks: T11071
Differential Revision: https://phabricator.kde.org/D25300
Summary:
Add a small getter to query information internally if the backend supports
swap events. Defaults to true as it is the default in the GBM Wayland backend.
Test Plan: i915
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Maniphest Tasks: T11071
Differential Revision: https://phabricator.kde.org/D25298
When initializing a property we loop through the drmModeObjectProperties
object and search for the property by its name.
Once found we create the Property object and there should be not another one
with the same name afterwards. In any case we would leak memory. Therefore just
directly return once the property was found.
This gives us the added benefit that we can put out a warning in case the
property was not found in the loop, what should not happen with the properties
we use.
This is just a code cosmetic change to have the same values internally like the
kernel for the type enum. In the logic there should not be a difference since
the enum values are mapped at runtime.
Summary:
This cleans up some of the code, moves and deletes superfluous functions,
improves in-code docs and runtime warnings.
Test Plan: On vt.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25867
Summary:
According to Gl 3.2 (page 501) and 4.5 (page 204) specs the initial state of
the default framebuffer is already BACK. Therefore we do not need to set it
explicitly.
When we draw in the future to alternative framebuffers which do not have back
buffers this call is fatal.
Test Plan: No tearing on Wayland, tearing as before on X11.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25868
Summary:
This is a small overhaul of the EglGbmBackend. Functions are restructured,
white space added and variables renamed for better readability and style
aligned with Frameworks Coding Style.
Test Plan: Session starts.
Reviewers: #kwin, zzag
Reviewed By: #kwin, zzag
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D25830
