This provides a significant performance improvement especially for Present Windows.
Whenever a lanczos resampling is done the resulted texture is cached, till the
window is damaged or a texture of different size is required. This means that
for a taskbar thumbnail the resampling only occurs once unless the window is damaged
and for present windows it only occurs when the windows are resized and then only
after the windows have already been moved. Highlighting windows does not cause
a resampling any more.
See review request http://svn.reviewboard.kde.org/r/5708/
svn path=/trunk/KDE/kdebase/workspace/; revision=1191874
With Intel drivers currently the self check at KWin startup fails (no idea why) and KWin falls back to XRender. This is probably an explanation for all the complaints about slow kwin in 4.5 and the missing effects. So let's fail and make it possible to restart compositing via systemsettings and alt+shift+f12.
Nevertheless it would be nice to fix the the failing selfcheck...
svn path=/trunk/KDE/kdebase/workspace/; revision=1148315
functions and share the value with the KCM; Fallback to XRender
compositing if OpenGL fails to work correctly; Rearrange setting order
in options.h slightly and fix variable names
svn path=/trunk/KDE/kdebase/workspace/; revision=1079919
As this is a bigger commit I will wait with backporting to 4.3 for something about two or three weeks and will only backport if nobody yells.
BUG: 201780
svn path=/trunk/KDE/kdebase/workspace/; revision=1004096
Display debugging messages when compositing mode has been forced by
KWIN_COMPOSE or KDE_FAILSAFE environment variables.
svn path=/branches/KDE/4.3/kdebase/workspace/; revision=987421
Prevent KWin from automatically disabling compositing when the user
changes the system time or timezone.
CCBUG: 184607
svn path=/branches/KDE/4.3/kdebase/workspace/; revision=986966
effects to detect mouse movement and modifier key changes even when KWin
is idle. As the track mouse effect requires polling to always be active
disabling it by default to prevent wasting CPU usage in the default
install.
Although this is a feature it is required to remove a major performance
issue in 4.2 that was caused by a last-minute hack before tagging.
svn path=/branches/KDE/4.2/kdebase/workspace/; revision=920966
detect mouse movement and modifier key changes even when KWin is idle.
As the track mouse effect requires polling to always be active disabling
it by default to prevent wasting CPU usage in the default install.
svn path=/trunk/KDE/kdebase/workspace/; revision=919711
"If this was only a temporary problem, you can resume using the 'Empty' shortcut.\n"
if no shortcut is found makes no sense, reworked to avoid it
Tried my best to do correct indentation but make failed
svn path=/trunk/KDE/kdebase/workspace/; revision=878365
also detect not-so-bad-but-still-slow paint times over a longer
period of time, i.e. the old check is for systems which are pathetically
slow, this one is for systems that are just slow. Possibly may need
tweaking for cases like high system load, but right now it seems
that e.g. a compilation running cannot trigger this check because
it cannot cause many long repaints in a row.
svn path=/trunk/KDE/kdebase/workspace/; revision=866636
If three successive ones take more than 1 sec, suspend compositing,
as that very likely means the system is totally incapable of decent
compositing. Perhaps may need little tweaking.
svn path=/trunk/KDE/kdebase/workspace/; revision=861906
and not be slowed down by going through compositing. Turned on and no UI option
in the naive hope that it won't cause any real problems. Maybe effects doing
window previews should get API to suspend unredirect though.
svn path=/trunk/KDE/kdebase/workspace/; revision=851742
quick timer caused by dynamically adjusting the next repaint
when using vsync. Ideally there should be no idle ticks at all,
somewhen later.
svn path=/branches/KDE/4.1/kdebase/workspace/; revision=850943
Thomas Lübking
Martin Gräßlin
Aaron J. Seigo
Lucas Murray
Jacopo De Simoi
Hugo Pereira Da Costa
Aike J. Sommer
Luboš Luňák
Jason vanRijn Kasper
Laurent Montel
Albert Astals Cid
Hasso Tepper
Andreas Hartmetz