AppletPopup window type should accept focus, behaving like other window types like
Dock. At the moment it is instead behaving like notification, which seems wrong.
This should also fix a failing unit test.
AppletPopup's are typically supposed to be attached to the panel and
should remain visible when the virtual desktop is changed. If the
AppletPopup is pinned and the virtual desktop is changed, without
this patch, the window does not remain attached to the panel. This is
how AppletPopup was supposed to work even according to the unit test
which currently fails.
The lowest latency setting wasn't applied because the internal
implementation contained an excess 'e' in comparison to the setting
exposed to the user
BUG: 453694
When a gesture is cancelled because of the distance between fingers or the
time it took to register them all, no gesture has been taken yet. In that
case, the canceling would never be ended, effectively disabling all touchscreen
gestures.
On Wayland, we create a dummy window to fix HiDPI issues. At the moment,
the QQuickRenderControl::renderWindow() returns a fixed offset 0,0.
As it turns out, QQuickItem::mapToGlobal() will poke the
QQuickRenderControl::renderWindow() function to map the specified point
to the global coordinate space.
Since the renderWindow() function returns hardcoded offset, the
mapToGlobal() function is sort of broken in fullscreen effects.
In order to fix mapToGlobal() on Wayland, this change makes the
EffectQuickRenderControl return the position of the associated
OffscreenQuickView.
When zoom factor is 1, the zoom effect will paint the scene in an
offscreen texture, but not actually paint the textures on the screen.
Zoom factor can be 1 when the effect has been just stopped.
BUG: 454407
When the effect closes, all the extra data attached to the window
(offToCornerId and apertureCorner properties) are not valid anymore
and need to be reset right after the animation end.
also manage the two edge cases where a window either appeared or
got minimized while the effect was running to either show it or not
BUG: 454280
On Wayland, screens are repainted independent of each other. If zooming
animation stops on one screen, other screens may still be stuck in the
zoomed state and therefore result in potential flickering. Issue a full
screen repaint when zooming stops to ensure that other screens are
repainted with "unscaled" contents.
BUG: 454407
Part-of: <https://invent.kde.org/plasma/kwin/-/merge_requests/2472>
Currently, if you want to use TimeLine, you need to track the last
presentation timestamp which boils down to carrying some boilerplate
code.
The current situation can be improved by making TimeLine work with
presentation timestamps.
Part-of: <https://invent.kde.org/plasma/kwin/-/merge_requests/2473>
The magnification filter was changed to GL_NEAREST with the reasoning
that "pixel granularity" would be more correct. Perhaps that was not a
bright idea. Change it back to GL_LINEAR.
BUG: 454408
Part-of: <https://invent.kde.org/plasma/kwin/-/merge_requests/2471>
In response to a XCB_CONFIGURE_NOTIFY on the output window, the new size
is set as mode and the output layer buffer is recreated.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
Part-of: <https://invent.kde.org/plasma/kwin/-/merge_requests/2459>
The config group is formed as "Effect-" + plugin id, i.e. "desktopgrid"
Config migration from DesktopGrid to desktopgrid is already handled by
a kconf_update script.
BUG: 454102
Part-of: <https://invent.kde.org/plasma/kwin/-/merge_requests/2464>
Under Gnome/Unity/XFCE, but not Plasma(!), QFontconfigDatabase queries
the platform native interface for certain font settings
(e.g. antialiasingEnabled). Without a QPNI this would crash KWin
as soon as it tried to query for fonts.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
Part-of: <https://invent.kde.org/plasma/kwin/-/merge_requests/2468>
This fixes integration of the zoom effect with the blur effect and qtquick
effects such as overview or window view.
The main con of the proposed solution is that offscreen rendering can be
a bit overkill. But on the other hand, it's the most robust way to
ensure that fullscreen effects integrate correctly with the zoom effect.
For example, without it, the quick scene effect would need to figure out
what screen views to paint for the given screen. There are also more
finicky cases, e.g. the screen transform effect.
BUG: 447002
BUG: 447670
BUG: 453467
Tested-by: Merge Service <https://invent.kde.org/plasma/kwin/-/merge_requests/2451>
Part-of: <https://invent.kde.org/plasma/kwin/-/merge_requests/2451>
Under kwin_wayland `kwinApp()->connection()` is for communicating with
XWayland, but in X11Windowed backend we need to talk to the host XServer.
Restore `XRenderUtils::init` and set it accordingly based on
whether we're running standalone or windowed, so that `kwin_wayland`
works running nested in an X session again.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
Tested-by: Merge Service <https://invent.kde.org/plasma/kwin/-/merge_requests/2457>
Part-of: <https://invent.kde.org/plasma/kwin/-/merge_requests/2457>
With some effects, latency policy doesn't matter and it's preferred if
kwin uses the smoothest animation latency policy in order to minimize
the number of frame drops, e.g. slide.
After commit c1d0aa18, the namespace where the KCM is installed
changed to `plasma/kcms/systemsettings/`.
We need to point to this new plugin location when the KCM is
launched via Alt-F3 > "Window Specific Properties"
Also let's set the full plugin location from CMake instead of
harcoded in C++ so it is easier to keep it in sync.
BUG: 454066
FIXED-IN: 5.25.0
The Blendchanges effect works by showing a snapshot of the current
screen for a few ms. Any other active full screen effect will look
broken, so it should take priority.
This is pre-empting an issue with a new Plasma feature that syncs
colours to wallpapers. Once we animate activity switches / have per
desktop wallpapers it'll glitch out.
The XRender backend has been removed, leaving most of KWinXRenderUtils unused.
The few features that are still used, notable `XRenderPicture` and pict format
are moved into the x11/common directory.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
For some reason with legacy the cursor gets an offset when changing the
image. In order to work around this, directly issue a cursor move with the
corrected position when changing the buffer
As we don't provide any ability for the user to configure the gestures yet,
the gesture for the desktop grid should stay as it was in the last release.
This commit swaps the gestures for desktopgrid and overview to achieve that.
At the moment, the data offer initializes supported and preferred action
to "none". But if the target doesn't accept anything the source
provides, the compositor may still need to send action events with "none"
This change makes data offer and data source provide dnd actions wrapped
in std::optional in order to indicate if they have been set explicitly.
SeatInterface emits dragEnded when the drag is dropped. The target may want
to interact with the data source after the drop happened, for example only
fetching data after the drop and not during the drag.
(Note that the Wayland protocol has the same
Xvisits are now not deleted prematurely but only when they are really finished.
(Note that the Wayland protocol has the same distinction between dropped and
finished so it maps nicely).
For storing previous visits the same code pattern as in the rest of the XWayland
DND code is used.
The SelectionSource is reset when the next Drag/Drop operation involving a X window
is started (see startDrag and doHandleXfixesNotify) or when the Wayland source is
about to be deleted.
BUG:450460
FIXED-in:5.25.0
Gesture recognition code doesn't handle correctly cancelling a touch
sequence. testTouchPoint in one of its tests simulates pressing the
screen with three fingers and cancelling the touch sequence.
Emitting the Workspace::windowAdded() signal before actually adding the
window to the Workspace is counter-intuitive and it can a source of
potential bugs as relevant window lists in Workspace don't contain the
window yet.
The features that this KCM lets you trigger barely work on X11 and
really only work properly on Wayland.
Unfortunately we don't have the ability to have separate settings
between X11 and Wayland, and for this reason we removed a default left
touch edge in 3df7985570 a year and a half
ago because it was too buggy on X11.
This commit takes the next step and hides the KCM entirely on X11, so
you can only use it on Wayland where it actually works properly.
One potential downside is be that any users who are actually using it
on X11 will lose the ability to use a GUI to configure these features
unless they go to the Wayland session to do it. However the number of
such users is likely small given how the feature does not really work on
X11.
However the upside is that Wayland users who can see the KCM can
actually use the features that it lets you configure because they work
properly there.
As it turns out, it's needed to ensure that the Workspace emits the
stackingOrder changed signal when a new window is added. It's also
implicitly needed to make sure that Window::stackingOrder() is updated.
Currently we guess the supported and preferred dnd actions in data offer
for version >= 3. This can create problems because kwin may not send the
right action events when the supported dnd actions actually change.
With this only the main and the libinput threads will use realtime
scheduling, so it will be harder to leak realtime scheduling to somebody
else.
The only caveat is that kwin would need to keep CAP_SYS_NICE around,
however on the other hand, it's needed to ensure that kwin_wayland is
able to get high priority EGL contexts with some drivers, e.g. intel.
QX11Info is used in `platform.cpp`, which is used by both
kwin_x11 and kwin_wayland. The latter only gets it implicitly
through KGlobalAccelPrivate.
Ideally, platform.cpp was split to not require QX11Info in
kwin_wayland in the first place.
Signed-off-by: Victoria Fischer <victoria.fischer@mbition.io>
As a wayland compositor kwin can hold many open file descriptors and
therefore it's easier for it to hit the soft file descriptor limit. This
change makes kwin_wayland bump the soft file descriptor limit to the
hard limit. With systemd, it's usually 500K.
In order to prevent causing mess in child processes, pthread_atfork() is
used to register a handler which will be invoked in the child process
after fork() in order to restore RLIMIT_NOFILE to its original value.
Overview is quite polished now, enough that we have a default touchpad
gesture that opens it by default. It's time to move it out of public
beta and enable it by default, and this commit does that.
BUG: 446753
FIXED-IN: 5.25
It appears that importing gbm_bo's using eglCreateImageKHR() doesn't
work on nvidia.
Another issue is that Platform::createDmaBufTexture() uses
gbm_bo_create(). The nvidia driver doesn't like that, it's preferred to
use gbm_bo_create_with_modifiers().
In order to address those issues, this change refactors how gbm_bo
objects are imported and how gbm_bo's are allocated for dmabuf textures,
so the same code can be reused in EglGbmBackend::textureForOutput()
and Platform::createDmaBufTexture().
This makes it consistent with WindowView (and the panel window doesn't respond
to input anyways even if shown, which is misleading).
BUG: 444274
FIXED-IN: 5.24.6
This allows using global shortcuts while a move/resize is ongoing. Most
importantly, this allows moving a window to a different desktop by
picking it up and then using a global shortcut to move to a different
desktop.
BUG: 444696
The Workspace has two stacks - one with managed windows and deleted
windows, the other includes windows from the first stack + override
redirect windows.
This change merges both stacks. It has several benefits - we will be
able to move window elevation stuff to Workspace and streamline the
scene stuff, for example it will be possible to have a root item.
Another advantage is that unmanaged windows will have
Window::stackingOrder() property set, which can be useful in the future
in qml effects or (qtquick scene if we push harder in that front).
Another advantage is that kwin will make less X11 calls when restacking
managed windows.
WindowItem has proper visibility set now, so these two interim hacks can
be removed now.
Workspace::stackingOrderChanged still needs to be kept around as the
Scene has no root item which could track the order of its child (window)
items.
At the moment we trigger the edges even when the active window is full
screen which is unfortunate when running certain games, for example when
you're attacking the village at the north-east in Age of Empires and you
have the Overview effect on.
This changes the default to inhibit them (like we used to just do for
sides but not corners for some reason) and adds a checkbox to restore
them even in that case.
BUG: 441464
Conceptually, scheduling repainting in Window doesn't belong there. This
change rewires EffectWindow internals so it schedules repaints using the
associated WindowItem.
Window::addWorkspaceRepaint() has not been removed yet because
Window::elevate() uses it.
This change makes the WindowItem track the opacity and schedule a
repaint. It further decouples the legacy scene from code window
abstractions.
It's an API breaking change. WindowPaintData no longer can make windows
more opaque. It only provides additional opacity factor.
It can happen that a gbm implementation does not support modifiers, while
the drm driver does. To prevent that from breaking KWin, fall back to creating
a gbm surface without modifiers when creating one with modifiers fails.
BUG: 453320
I am trying to cross-compile and since qtwaylandscanner_kde is used
during the build, I need to build a native version of the
qtwaylandscanner_kde tool first. This change allows building
qtwaylandscanner_kde as a standalone CMake project which the cross-build
can then be pointed at to find the host tool. If an explicit path to
qwaylandscanner_kde is not passed, we will try to use ExternalProject_Add
to build it. This approach was taken from ksyntaxhighlighting:
https://invent.kde.org/frameworks/syntax-highlighting/-/blob/master/src/indexer/CMakeLists.txt
This patch makes it significantly easier to cross-compile KWin, as we now
only need a native QtCore library instead of all the dependencies.
The Scene no longer clips window quads if the specified paint region is
infinite. The infinite region is defined as (INT_MIN/2, INT_MIN/2,
INT_MAX, INT_MAX). If you try to scale the infinite region, you will
easily hit integer overflow.
This change makes the DeformEffect disable geometry clipping if the given
paint region is infinite region in order to avoid hitting integer
overflow.
This allows to toss a large amount of custom rendering code.
Furthermore, it removes the build-time dependency on Plasma Framework
for FrameSvg and Theme from KWin core as it's pulled in through QML
imports now.
It also cleans up the API and removes functions that are effectively
unused or no-op after this change.
For instance, effects often destroy their effect frames
in pre/postPaintScreen, which would now destroy an `OffscreenQuickView`,
which changes GL context. This is alleviated by delaying detruction
of the internal view.
Support for the features of text cross-fade and selection frame,
which are not used by any of the built-in effects, is dropped.
Signed-off-by: Eike Hein <eike.hein@mbition.io>
The lanczos filter depends on the effect system. It makes very difficult
changing painting code from SceneWindow to Item.
Given that the last big users of the laczos filter - present windows and
desktop grid effects were re-written in QML. The only remaining user of
the lanczos filter is the thumbnail aside effect. Given that it's a
really obscure usecase, switching to the linear filter won't be very
noticeable.
As a backup plan, one can reimplement the thumbnailaside effect using
QML. The lanczos filter is already implemented in plasma-framework.
The first time the GBM backend's EGL context is made current after
creation, both the read and draw surfaces are set to EGL_NO_SURFACE.
This will set the GL read and draw buffers to GL_NONE in accordance with
the EGL spec.
When a real surface is later made current, however, the spec is arguably
unclear on whether the read and draw buffers should remain set to
GL_NONE or whether they should be restored to the default GL_BACK. The
Mesa driver does the latter, the NVIDIA driver does the former.
To work around this difference, Kwin has an explicit call to
glDrawBuffer in GbmSurface::makeContextCurrent. It does not have a
corresponding call to glReadBuffer, though, which can cause some desktop
effects such as background contrast to render incorrectly with the
NVIDIA driver. This change adds that missing call.
Workspace::findAbstractClient(QUuid) overload is used only by the
windows krunner plugin.
This change fixes a potential null dereferencing and removes the
findAbstractClient() overload in favor of a more generic findToplevel()
overload.
Releasing the buffers is necessary for example in the case of a GPU reset,
to make sure that the gbm surface is still properly destroyed and all buffers
with invalid content freed.
Instead of buffers being both drm framebuffers and gbm / dumb buffers, these
responsibilities are now split, which makes it possible to do zero copy
screen casting in the future.
Both framebuffers and gbm / dumb buffers also now always hold a valid underlying
resource, which simplifies code a bit.
since it has been replaced by windowview, and Desktop Grid
is ported as well, remove present windows which is effectively dead code
now
BUG:447001
BUG:362844
BUG:450487
BUG:453426
BUG:374481
BUG:185381
BUG:413342
BUG:451150
BUG:283333
BUG:315314
BUG:397500
BUG:321236
BUG:436572
BUG:335782
* give windowview the ability to show windows from current desktop, all
desktops or current class
* invokable from shortcuts screen edges or gestures
* add a search field to quickly filter
* current present windows effect still present but only internal as is used by desktop grid, which should eventually be ported as well
This can be done either from windowview or overview, tough note that some of the duplication from overview added in windowview is necessary regardless, as WindowHeap, the shared qml part needs some properties exposed from the c++ part.
Implementation wise I'm ok for it being in either place, but i think the functionality of present windows needs to be preserved, otherwise would be a completely unacceptable regression, namely:
* Behavior of what now are the ctrl+f7,f10 and f11 global shortcuts, showing windows of current app (invokable by shoortcut instead of having to use the pointer), windows of current desktop (the only thing overview does atm) or all desktops
* filter on typing, as opposed to invoking krunner. main use case of present windows is quickly switching, and filtering is the most helpful feature, some people do like krunner instead, but is completely out of place for my use case, and i suspect for many other users as well
* also clicking on a taskbar group should be possible to filter
* the view that opens by clicking on a taskbar group should follow the same layout strategy used elsewhere and currently being an effect used only there and not accessible form the list can't even be configured
Since WindowItem::visible is kept in sync with the effective visible
status of the window, window items that are not lockscreen greeter or
input methods can be hidden when the lock state changes.
With this, the WindowItem will know whether it's actually visible. As
the result, if a native wayland window has been minimized, kwin won't
try to schedule a new frame if just a frame callback has been committed.
EffectWindow::enablePainting() and EffectWindow::disablePainting() act
as a stone in the shoe. They have the final say whether the given window
is visible and they are invoked too late in the rendering process.
WindowItem needs to know whether the window is visible in advance,
before compositing starts.
This change replaces EffectWindow::enablePainting() and
EffectWindow::disablePainting() with EffectWindow::refVisible() and
EffectWindow::unrefVisible(). If an effect calls the refVisible()
function, the window will be kept visible regardless of its state. It
should be called when a window is minimized or closed, etc. If an effect
doesn't want to paint a window, it should not call effects->paintWindow().
EffectWindow::refVisible() doesn't replace EffectWindow::refWindow() but
supplements it. refVisible() only ensures that a window will be kept
visible while refWindow() ensures that the window won't be destroyed
until the effect is done with it.
Item::isVisible() is true if either the item has been marked hidden or
one of its ancestors.
In some cases, kwin may render invisible windows, for example for window
thumbnails.
This change makes rendering code use explicit visibility status when
rendering to ensure that it's still possible to render invisible windows.
If an effect is reloaded while it holds deleted references, it's
possible that the closed windows will get stuck in the "zombie" state.
This change introduces EffectWindowDeletedRef helper that can be
used to keep the closed window alive as long as the reference is valid.
If you lift fingers but not swipe them enough to switch to another
virtual desktop, the slide effect will play an animation to move from
the current position in the virtual desktop grid to the current desktop.
However, that animation doesn't feel right, there's something missing.
The slide effect uses a TimeLine to animate switching between virtual
desktops, it's great if the amount of sliding is constant.
This change makes the slide effect use the mass-spring-damper model to
simulate the motion of a spring in order to animate switching between
virtual desktops.
The mass-spring-damper equation is integrated using RK4. If the delta
interval is not multiple of the integration step precisely, the
SpringMotion will perform integration as many times as the integration
step fits into the delta. The leftover will be used for LERP between the
previous and the next integration results.
With the spring animation, the slide animation feels more natural when
you lift fingers. If you switch between virtual desktops without using a
gesture, the slide animation should look almost the same as if it were
implemented with the TimeLine.
It helps to contextualise the method as it's using several x11-isms,
some of them possible ot abstract.
In any case, the method is only called with X11Window and it's the only
case where it makes sense doing so.
The scripting API is extended to support custom fragment shaders. To
support this a new method addFragmentShader is added taking ShaderTraits
and fragment shader. The GLShader is not exposed, instead a uint id is
provided which maps to the GLShader.
This shader id can be used in the animate and set calls to specify the
shader. The animation object is extended by the "fragmentShader" property.
The shader sources are located in the "shaders" directory of the package
contents.
E.g. the scale effect extended by the shader of the invert effect will
have the following layout:
package/contents/
-> code/
-> main.js
-> shaders/
-> invert_core.frag
-> invert.frag
The adjustment in code are:
* in constructor to load the shader
this.shader = effect.addFragmentShader(Effect.MapTexture, "invert.frag");
* in animations objects of the slots the additions
fragmentShader: this.shader
* using the type Effect.Shader
or in full:
window.scaleInAnimation = animate({
window: window,
curve: QEasingCurve.OutCubic,
duration: this.duration,
animations: [
{
type: Effect.Scale,
from: this.inScale
},
{
type: Effect.Opacity,
from: 0
},
{
type: Effect.Shader,
fragmentShader: this.shader
}
]
});
The animation settings object supports a "uniform" value which takes the
string name of the uniform. For this uniform the location is resolved
and stored in the meta data of the AnimationEffect. This requires the
type Effect.ShaderUniform.
An example animation:
window.scaleInAnimation = animate({
window: window,
curve: QEasingCurve.Linear,
duration: this.duration,
animations: [
{
type: Effect.ShaderUniform,
fragmentShader: this.shader,
uniform: "uForOpening",
from: 1.0,
to: 1.0
}
]
});
Furthermore a new setUniform scriptable method is added to the
ScriptedEffect. This allows to update uniforms when the configuration
changes.
The call takes a generic QJSValue which supports:
* float
* array of 2, 3 or 4 components
* string as color
* variant as color
An example usage to read a color from the configuration and set it as a
uniform:
effect.setUniform(this.shaderId,
"uEffectColor",
effect.readConfig("Color", "white"))
The animate and set calls are extended for an optional GLShader* to
allow specifying a custom shader to use during the animation.
To properly support rendering a complete window in the effect the
AnimationEffect gets based on the DeformEffect. If a shader is used
during the animation the window gets redirected.
For the animation with shaders two new enum values are added to the
AnimationType enum:
* Shader
* ShaderUniform
The Shader animation type is for specifying that the animation uses a
shader. During the animation a uniform "animationProgress" is set on the
shader.
The ShaderUniform animation type behaves exactly like the Shader type,
but also animates a user provided uniform. The meta data of the
animation is interpreted as a uniform location for a float uniform and
during the animation this uniform is updated with the interpolated
animation data.
For a redirected window a custom shader can be specified to draw the
redirected texture to screen. This is useful for inheriting effects to
customize the rendering.
Two new int uniforms TextureWidth and TextureHeight are added and set
from DeformEffect when rendering the texture.
Currently, fullscreen geometry restore is computed from maximized
geometry restore. However, the latter is set only when the window is
maximized.
Also, updateGeometryRestoresForFullscreen() can be called when the
window has not been moved. Avoid updating geometry restore if the output
has not been changed.
If the animation reaches the end, desktop grid may render the screen
incorrectly. Make sure that PAINT_SCREEN_BACKGROUND_FIRST and flags as
such are set even if animation has reached the end.
Also, while on this, simplify the paintWindow() method by removing
redundant effect status checks.
effects can specify in their json file "X-KWin-Border-Activate":true
and will be listed in the edge menus.
Don't hardcode desktop grid and overview in the kcms
At the moment, if user switches between virtual desktops using a
gesture, panels will loose blurred background because WindowForceBlurRole
is not set.
This change refactors setup code so the slide effect always forces blur
and background contrast when sliding between virtual desktops using a
gesture or animation.
Possibility to implement realtime screenedges gestures in scripted effects,
implement it in the windowsaperture show desktop effect.
* Expose registerRealtimeScreenEdge to JavaScript, the callback will be
a JS function.
* Add the concept of freezeInTime() in the animation js bindings,
it will either create an animation frozen at a given time or freeze a running animation
that can be restored and ran to completition at any time
* add an edges property only for showdesktop as it's not directly on the effect configuration
If desktop wrapping is disabled and user swipes to left but there's no
desktop to left, the slide effect can get stuck active because there's
no desktopChanged() nor desktopChangingCancelled() signal emitted.
This change makes the VirtualDesktopManager explicitly cancel
interactive desktop switching session if the current desktop has not
changed.
Currently, there's a separate pass to filter out windows not ready for
compositing or windows that must be invisible. That has two issues: we
could merge that pass with the pass that populates stacking_order and
"windows" can detach.
libinput_device_get_user_data() can be used to get the associated Device
object with libinput_device. That way, we won't need to maintain a
private list of all input devices.
If the window filter rejects a window, that window won't be in the
stacking_order and henceforth won't be painted, so finalDrawWindow()
does extra work of checking again if the window is accepted.
Effects may perform cleanup when a deleted window is removed. If that
happens and the SceneWindow is accessed, kwin may crash.
The Scene processes Workspace::deletedRemoved() before effects.
In order to fix dereferencing null pointer, this change makes the Window
destroy its associated SceneWindow.
Format modifiers enable the graphics hardware to be much more efficient,
especially when it comes to multi-gpu transfers. With the issues regarding
bandwidth limits now solved, enable them by default to make all supported
systems benefit from them.
CCBUG: 452397
CCBUG: 452219
When explicit modifiers are used, it can happen that Mesa chooses modifiers that make
the display hardware hit bandwidth limits. In that case, atomic tests fail and the
outputs don't work, or KWin may even crash.
In order to work around that, DrmGpu now removes the used modifier whenever an atomic
test fails, and tries to find a working combination of outputs and modifiers.
If a window is destroyed before the frame is presented, the window
pointer will be dangling.
In order to make kwin handle that case correctly, the window is captured
using a QPointer.
While having all state be public is great for avoiding the boilerplate that
comes with setters and getters, it also exposes more state than necessary
to the rest of the backend and makes it more error-prone if more than one
part of the state needs to be changed at the same time.
WindowThumbnailItem doesn't depend on features that are available only
with managed window.
By making WindowThumbnailItem work with all kinds of windows, its code
is easier to work with and refactor.
Instead of passing all possible field values to the initialize()
function, pass all relevant data in a struct. With designated
initializers, it's more readable and makes code more comprehensible.
The general goal is to split Output's data in two categories - general
information about the output (e.g. edid) and mutable state (position,
mode, etc).
With this, the drm backend will be able to associate drmModeModeInfo
with Output's modes, which can be useful if there are several modes with
the same resolution and refresh rate but different flags.
This makes KWin switch to in-tree copy of KWaylandServer codebase.
KWaylandServer namespace has been left as is. It will be addressed later
by renaming classes in order to fit in the KWin namespace.
