by checking the graphicssystem at startup
also avoid pixmap and memory leaking on the xrender backend, validate some pointers
on deletion in SceneOpnGL and avoid attempts to render ::isNull pixmaps
Actually it's more a hack and should be addressed in the next
release cycle by allowing effects to modify the scene's blend
equation.
BUG: 274424
FIXED-IN: 4.7.0
This was causing problems with R300G. The GPU supports only limited
GLSL and seems not to be up to rendering the scene appropriate. So
let's better disable the OpenGL 2 branch for such GPUs. If the user
really wants to use it, there is the GLES backend which does not
check for limited GLSL.
BUG: 274457
CCBUG: 274607
FIXED-IN: 4.7.0
For what reason ever motion manager thinks that windows are not
moving during the start animation (but are during the stop animation).
So we also have to look on the timeline to decide whether we should
disable lanczos filter on the windows.
Now wonder the animation was stuttering.
BUG: 274292
FIXED-IN: 4.7.0
The logic to prevent errornous desktops broke setting a window
to all desktops through the task manager. For some reason all
desktops is -1 which is of course less than 1 ;-)
In case we use OpenGL compositing and KWin is started with the raster graphicssystem,
the decoration gets painted with the raster backend.
REVIEW: 101370
Due to changes in the blur effect, the EffectFrame was flickering
with GLES. This can be worked around by doing full repaints whenever
a window is damagded while boxswitch is active with GLES. The problem
only occurs with the GLES backend due to the way how the buffers are
swapped.
BUG: 272688
Well we don't have another choice if half of the drivers crash kwin
whenever you watch a fullscreen flash video or use a screen saver.
Unredirect Fullscreen Window was quite useful in case you used
to play heavy OpenGL games, but pretty useless for anything else.
For the game and hd video usecase we nowadays have the better way
of really suspending compositing (either by the client indicating or
with a window specific rule). The plus of suspending compositing is
that the driver doesn't crash.
And yes we are "supposed" to no longer workaround driver bugs.
Good joke, I like to redirect my inbox to everyone who things we
are not allowed to workaround driver bugs.
CCBUG: 252817
The deep copy does not work with raster as it creates a non-native
pixmap. In fact the deep copy is not needed any more as it was a
safety check during development when apps using raster could crash
kwin.
With raster a QPixmap is no longer a XPixmap which fails all code
which assumes that an QPixmap is an XPixmap. Depending on were in
the codebase we either convert such pixmaps to images (OpenGL) or
create a XPixmap and use QPixmap::fromX11Pixmap to get a "real"
pixmap.
It is possible that there are more code pathes were we would need
a XPixmap. Currently tested is basic functionality of no-compositing,
XRender compositing, OpenGl/GLX and OpenGL ES/EGL compositing.
For OpenGL compositing raster might result in performance improvements,
for XRender it is possible that there are regressions when using raster.
By default KWin uses whatever is the default of the system, so we just
no longer enforce native.
Of course it is a bad idea to use graphicssystem OpenGL. As that
is broken anyways in Qt, we do not check for it.
Many thanks to Philipp Knechtges for bringing up the issue, convincing
me that we need it and providing most of the patch.
REVIEW: 101132
CCMAIL: Philipp.Knechtges@rwth-aachen.de
Also add a usable "doesn't work why" info and WARN! the user about clicking the rearm button.
Merge "OpenGLIsUnsafe" and "CheckIsSafe" config keys
Move the entire checking into CompositingPrefs
BUG:250865
FIXED-IN:4.7
Because:
* We have a bug in our scripts that makes extracomment not work (will try to fix this asap)
* Makes sense to be a comment since we want it to be a disambiguation text
* KUIT markers (e.g. @label) need to be in comment
The new build option restricts the building of effects to those
useable for Plasma Active:
* blur
* dialogparent
* fade
* login
* outline
* presentwindows
* slidingpopups
* taskbarthumbnails
* screenshot
Additionally all effect KCMs are excluded from building in the
assumption that when building with this option, KWIN_BUILD_KCMS
is turned off.
CCMAIL: sebas@kde.org
