Special file for howto on setting up kwin_composite.
svn path=/branches/work/kwin_composite/; revision=607516
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Luboš Luňák
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97
COMPOSITE_HOWTO
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COMPOSITE_HOWTO
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This file describes how to set up kwin_composite.
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See file HACKING for details on developing KWin, including building
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the kwin_composite branch.
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See file COMPOSITE_TODO for a list of things that still need to be done.
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See effects/howto.* for a HOWTO on writting effects.
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See documentation in source (mainly in scene.cpp) for description
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of the design of the compositing framework.
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Using kwin_composite branch:
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============================
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See the KDE trunk HOWTO at http://developer.kde.org/build/trunk.html .
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The simplest way to build the kwin_composite branch is to switch the trunk version
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to the branch:
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$ cd kdebase/workspace/kwin
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$ svn info
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(prints the repository URL, for example https://svn.kde.org/home/kde/trunk/KDE/kdebase/workspace/kwin)
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$ svn switch https://svn.kde.org/home/kde/branches/work/kwin_composite
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(i.e. replace trunk/KDE/kdebase/workspace/kwin with branches/work/kwin_composite)
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$ make
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(i.e. build and use it as usually)
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After starting, KWin's debug output also says which compositing backend it uses, e.g.
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"OpenGL compositing". If it does not, most probably your X is not configured properly.
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nVidia:
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-----------
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Both 9xxx and 8xxx drivers work, only 9xxx drivers provide TFP (texture_from_pixmap)
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functionality.
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You need in xorg.conf
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Option "AddARGBGLXVisuals" "True"
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in 'Section "Screen"' and also the XComposite extension enabled:
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Section "Extensions"
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Option "Composite" "Enable"
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EndSection
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ATI:
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--------
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The radeon driver should work for R200 chips, it's worse with R300 chips.
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TODO - fglrx - no idea
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You need in xorg.conf the XComposite extension enabled:
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Section "Extensions"
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Option "Composite" "Enable"
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EndSection
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Also using
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Option "XaaNoOffscreenPixmaps" "true"
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in 'Section "Screen"' may improve performance for non-TFP (texture_from_pixmap) modes.
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For the TFP mode AIGLX needs to work. With AIGLX direct rendering should be be disabled
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(export LIBGL_ALWAYS_INDIRECT=1 before running kwin).
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Intel:
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-------
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TODO - no idea. Possibly similar to ATI.
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Configuration options:
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----------------------
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All general configuration option are in group [Translucency] in kwinrc config file:
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UseTranslucency=<true|false> - enables/disables compositing support
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GLMode=<TFP|SHM|Fallback> - selects texture creating mode
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RefreshRate=<number> - manually specified refresh rate, should be usually automatically detected
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GLAlwaysRebind=<true|false> - may increase speed with some graphics cards
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GLDirect=<true|false> - enables/disables direct rendering
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GLVSync=<true|false> - enables/disables synchronizing with monitor refresh
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ShowFPSEffect:
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Options are in group [EffectShowFps] in kwinrc config file:
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Alpha=<number 0.0-1.0> - transparency
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X=<number> - X position, negative is from the right edge, -10000 is exactly right edge
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Y=<number> = Y position, the same like X
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Effects:
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--------
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Effects can be currently enabled/disabled only by modifying effects.cpp source file.
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@ -1,5 +1,6 @@
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This file lists TODO items for the compositing code.
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See file COMPOSITE_HOWTO for setting up kwin_composite.
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See file HACKING for details on developing KWin, including building
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the kwin_composite branch.
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See effects/howto.* for a HOWTO on writting effects.
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33
HACKING
33
HACKING
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@ -10,39 +10,6 @@ The bugs.kde.org product for KWin is 'kwin'. Currently the components are 'gener
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There are also two kcontrol components 'kcmkwindecoration' and 'kcmkwinoptions' related
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to KWin's KControl modules.
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Using kwin_composite branch:
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============================
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See the KDE trunk HOWTO at http://developer.kde.org/build/trunk.html .
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The simplest way to build the kwin_composite branch is to switch the trunk version
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to the branch:
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$ cd kdebase/workspace/kwin
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$ svn info
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(prints the repository URL, for example https://svn.kde.org/home/kde/trunk/KDE/kdebase/workspace/kwin)
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$ svn switch https://svn.kde.org/home/kde/branches/work/kwin_composite
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(i.e. replace trunk/KDE/kdebase/workspace/kwin with branches/work/kwin_composite)
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$ make
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(i.e. build and use it as usually)
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After starting, KWin's debug output also says which compositing backend it uses, e.g.
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"OpenGL compositing". If it does not, most probably your X is not configured properly.
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For nVidia:
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-----------
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Both 9625 (beta) and 8776 drivers work. You need
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Option "AddARGBGLXVisuals" "True"
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in 'Section "Screen"' and also the Xcomposite extension enabled:
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Section "Extensions"
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Option "Composite" "Enable"
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EndSection
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KWin parts:
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===========
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