With programmable LUTs, consecutive transfer functions, inverse transfer functions and
multipliers can all be combined into one LUT. This allows offloading operations in more
situations and makes the operations more efficient too, as potentially fewer LUTs have
to be programmed
This is useful for autotests and some other special cases where we need to calculate
the result of a color pipeline on the CPU. Long term, this should replace
ColorDescription::mapTo
When the GLX or the EGL backend is destroyed, it is going to reset the
RenderLoop state, including the number of frames in flight. It does so
because of the historical reasons. At the time, there was no output frame
object to track the lifecycle of a frame.
After introducing the OutputFrame and hooking it into the RenderLoop,
the pending frame count will be reset automatically in RenderLoop when
the GLX or the EGL backend is destroyed. But we forgot to remove
the invalidate() function calls. So, when the GLX backend goes down, it
resets the pending frame count to zero and then it destroys the pending
OutputFrame object, which would result in decreasing the pending frame
count by 1 and triggering an assert in the RenderLoopPrivate::notifyFrameDropped()
function.
Since there is the OutputFrame helper now, the invalidate() function
can be dropped. Technically, the invalidate function did more than just
reset pendingFrameCount to 0, for example also stop the compositeTime.
But that should be fairly harmless new behavior.
Switching to triple buffering requires dropping a frame, so if we constantly
switch back and forth between double and triple buffering, that can cause
very visible performance issues
CCBUG: 488843
sched_setscheduler() is implemented as a stub in musl that does
nothing because Linux provides no way to set scheduling parameters
per process.
Use pthread_setschedparam() to change the scheduling parameters of
the threads instead.
BUG: 487996
Wayland specification is that the compositor chooses the actions based
on keyboard modifiers rather than the application initiating the drag
being told the modifiers.
Some distributions do not wish to build the KWin X11 backend as
they do not use it, even though they wish to maintain X11 support
for Xwayland when using KWin as a Wayland compositor.
Allow this choice by splitting the build flag and setting it up to
forcibly disable building the backend when building X11 code is
switched off.
These were off by one because the surface tab was removed.
Insetad of numbers look up the indices of the widgets so its
less prone to break in the future.
Apparently the night light kcm allows to set the custom times so the
evening is earlier than the morning to handle extreme cases close to
the North and the South pole.
NightLightManager::updateTransitionTimings() should require no changes.
BUG: 489366
With recent change of using show desktop with plasma's edit mode,
wayland input method becomes unusable when trying to type in the search
box of widget explorer. This is because the input method window will
currently break showing desktop under wayland.
Under X11, an input method window is traditionally implemented as an
override redirect window. Under Wayland, the window should be treated
similarily, but now we have a special type for input method window.
BUG: 489057
FIXED-IN: 6.1
This allows the user to change the brightness level of content even if there's no
actual underlying "backlight" device. This is the case with many internal OLED
screens for example.
BUG: 413451
This way, KWin can set the brightness on internal panels or external monitors with
DDC/CI support, without being exposed to the mess that is actually directly setting
the brightness.
This also adds a capability flag for brightness control to the output management
protocol. Powerdevil will expose a brightness slider for each output and change the
brightness setting of the output accordingly. KWin in turn changes the brightness
levels of the actual brightness device, or of a multiplier in compositing accordingly.
It's sometimes wanted that you disable certain buttons on the device,
such as an annoyingly place side button on a drawing tablet. This now
makes it possible to do so by putting "Disabled" in the config. The
rebind filter will then ensure the events are stopped and none are
emitted.
The effect only modifies the opacity of individual windows that
WorkspaceScene::scanoutCandidate will reject anyways, so there's no reason
for it to block direct scanout.
Once a more proper solution for blocking direct scanout on individual items
is in place, this can be removed again
BUG: 487780
textureSize() can temporarily mismatch the target buffer size. It can be
a problem if glGetTexImage() gets called. glGetTexImage() assumes that
the provided buffer is as big as the texture. If it's not, it will write
data outside the bounds of the buffer.
BUG: 489764
pipewire 1.2 has a known regression where the client's process callback
will not be triggered if the producer has sent only one buffer.
The issue has already been fixed upstream
525360d70a
Until our CI picks up that change, temporarily disable the test to unblock
merging patches.
When disabling sticky keys while a key is latched or locked we unlatch the key, but don't tell the client until the next key event
Call forwardModifiers to tell the client immediately
We map AltGr to Qt::GroupSwitchModifier, but then ignore it
Instead map it to Mod5, which for some reason xkbcommon doesn't expose a define for
Also, since the Qt modifiers enum doesn't map nicely to XKB modifiers introduce our own enum to avoid confusion
CCBUG: 444335
It can happen that when the xwayland scale factor changes, the logical geometry
will remain the same, but the x windows still need to reconfigured to update the
native geometry.
In order to address that, this change makes X11Window track the buffer scale
so if the logical geometry is the same, the x windows will be still reconfigured
with the new xwayland scale.
