We now rely on auto-vectorisation to generate the appropriate SSE or
other instruction set code. We can also assume that takes care of
handling any alignment requirements and thus remove the need for manual
alignment things.
Both GCC and Clang do auto vecrization these days and testing shows that
that actually produces faster code, so dropping the SSE stuff makes
things both simpler and faster.
- use kcoreaddons_add_plugin CMake macro, the other one is KWin internal
- reference embedded json metadata in section about macros
- Provide codesnippet to json metadata
- Do not explicitly define plugin id in metadata, instead we can derive it from the library name
ScreenPaintData provides a way to transform the painted screen, e.g.
scale or translate. From API point of view, it's great. It allows
fullscreen effects to transform the workspace in various ways.
On the other hand, such effects end up fighting the default scene
painting algorithm. For example, just have a look at the slide effect!
With fullscreen effects, it's better to leave to them the decision how
the screen should be painted. For example, such approach is taken in
some wayland compositors, e.g. wayfire, and our qtquick effects already
operate in similar fashion.
Given that, strip the ScreenPaintData of all available transforms. The
main motivation behind this change is to improve encapsulation of item
painting code and simplify model-view-projection code in kwin. It will
also make the job of extracting item code for sharing purposes easier.
in order for qml pointerhandlers to work correctly, they need
timestamps in all events (to decide for instance when to emit a
tapped or doubletapped)
BUG:456133
Set the time for mouse and touch events. This is especially important
for the mouse is as the timestamp will be used to discriminate between
single and double click. Previously this was always sending the double
click event, making buttons work only every other click.
BUG: 454275
BUG: 449907
focus used to be always forced to the root item of the view in the
"active screen" (which behavior is configurable between mouse poosition
and screen of active window)
now set focus to that particular view only if nothing is focused, also when
the user explicitly sets focus to an item in another view
remove focus to the old one so the item properly focused would be there
BUG:455807
BUG:455783
CCBUG:455633
Originally, DeformEffect was meant to be used in effect that deform
windows, but its usage has become wider than anticipated. This change
renames the DeformEffect to OffscreenEffect to accommodate for that.
Allow dragging windows between screens, using a placeholder thumbnail item to
render part of the thumbnail on the other screen.
BUG: 283333
BUG: 453996
BUG: 448566
There are a few benefits to using smart pointers from the standard library:
- std::unique_ptr has move semantics. With move semantics, transfer of ownership
can be properly expressed
- std::shared_ptr is more efficient than QSharedPointer
- more developers are used to them, making contributions for newcomers easier
We're also already using a mix of both; because Qt shared pointers provide
no benefits, porting to standard smart pointers improves consistency in
the code base. Because of that, this commit ports most of the uses of QSharedPointer
to std::shared_ptr, and some uses of QScopedPointer to std::unique_ptr
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.
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 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>
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.
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.
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.
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.
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.
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
Added this interface to the VirtualDesktopManager. Realtime touchpad gestures update the interface to allow for mac os style desktop switching.
Also makes gestured switching use natural direction.
BUG: 185710
GLRenderTarget doesn't provide a generic abstraction for framebuffer
objects, so let's call GLRenderTarget what it is - a framebuffer.
Renaming the GLRenderTarget class allows us to use the term "render
target" which abstracts fbos or shm images without creating confusion.
- added option to remove the frametime graph
- added option to remove the "this is a benchmark" message
- location of the fps counter is now on the "active" monitor by default
- removed the hard-limit of 100 for the FPS counter
- added option to color the text based off the FPS value
When changing global settings like switching between light and dark
themes the result is currently quite messy. Apps update in a scattered
order and a jarring change.
The solution is heavily inspired from Gnome, we cache the window for X
milliseconds, then perform a crossfade between the cache and current
contents.
It does mean any video is paused for half a second, but pragmatically
it's not really bothersome.
On receipt of an explicit DBus method call we create a cache and start
animating. The explicit method call is needed so that we can guarantee
kwin has a fully copy before a client might change.
Use of an offscreen texture is used so that we include any window
decorations. The DeformEffect effect is repurposed as it has most the
relevnat logic if we remove the live updating.
Swipe with three fingers
- left to switch to the previous virtual desktop
- right to switch to the next virtual desktop
- up and down to toggle the overview
CCBUG: 439925
The .clang-format file is based on the one in ECM except the following
style options:
- AlwaysBreakBeforeMultilineStrings
- BinPackArguments
- BinPackParameters
- ColumnLimit
- BreakBeforeBraces
- KeepEmptyLinesAtTheStartOfBlocks
support realtime activation for screenedges gestures, making it possible
for effects to show half-triggered states while dragging from
the edge with a finger, making them much more usable
