963 lines
31 KiB
C++
963 lines
31 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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/*
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Code related to compositing (redirecting windows to pixmaps and tracking
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window damage).
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Docs:
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XComposite (the protocol, but the function calls map to it):
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http://gitweb.freedesktop.org/?p=xorg/proto/compositeproto.git;a=blob_plain;hb=HEAD;f=compositeproto.txt
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XDamage (again the protocol):
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http://gitweb.freedesktop.org/?p=xorg/proto/damageproto.git;a=blob_plain;hb=HEAD;f=damageproto.txt
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Paper including basics on compositing, XGL vs AIGLX, XRender vs OpenGL, etc.:
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http://www.vis.uni-stuttgart.de/~hopf/pub/LinuxTag2007_compiz_NextGenerationDesktop_Paper.pdf
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Composite HOWTO from Fredrik:
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http://ktown.kde.org/~fredrik/composite_howto.html
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*/
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#include <config-X11.h>
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#include "utils.h"
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#include <QTextStream>
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#include "workspace.h"
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#include "client.h"
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#include "unmanaged.h"
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#include "deleted.h"
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#include "effects.h"
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#include "scene.h"
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#include "scene_basic.h"
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#include "scene_xrender.h"
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#include "scene_opengl.h"
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#include "compositingprefs.h"
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#include "notifications.h"
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#include <stdio.h>
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#include <QMenu>
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#include <kaction.h>
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#include <kactioncollection.h>
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#include <klocale.h>
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#include <kxerrorhandler.h>
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#include <X11/extensions/shape.h>
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#ifdef HAVE_XCOMPOSITE
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#include <X11/extensions/Xcomposite.h>
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#if XCOMPOSITE_MAJOR > 0 || XCOMPOSITE_MINOR >= 3
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#define HAVE_XCOMPOSITE_OVERLAY
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#endif
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#endif
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#ifdef HAVE_XRANDR
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#include <X11/extensions/Xrandr.h>
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#endif
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namespace KWin
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{
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//****************************************
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// Workspace
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//****************************************
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void Workspace::setupCompositing()
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{
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#ifdef KWIN_HAVE_COMPOSITING
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if( scene != NULL )
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return;
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if( !options->useCompositing && getenv( "KWIN_COMPOSE") == NULL )
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{
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kDebug( 1212 ) << "Compositing is turned off in options or disabled";
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return;
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}
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else if( compositingSuspended )
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{
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kDebug( 1212 ) << "Compositing is suspended";
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return;
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}
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else if( !CompositingPrefs::compositingPossible() )
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{
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kError( 1212 ) << "Compositing is not possible";
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return;
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}
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CompositingType type = options->compositingMode;
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if( getenv( "KWIN_COMPOSE" ))
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{
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char c = getenv( "KWIN_COMPOSE" )[ 0 ];
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switch( c )
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{
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case 'O':
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type = OpenGLCompositing;
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break;
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case 'X':
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type = XRenderCompositing;
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break;
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default:
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kDebug( 1212 ) << "No compositing";
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return;
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}
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}
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char selection_name[ 100 ];
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sprintf( selection_name, "_NET_WM_CM_S%d", DefaultScreen( display()));
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cm_selection = new KSelectionOwner( selection_name );
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connect( cm_selection, SIGNAL( lostOwnership()), SLOT( lostCMSelection()));
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cm_selection->claim( true ); // force claiming
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switch( type )
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{
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/*case 'B':
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kDebug( 1212 ) << "X compositing";
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scene = new SceneBasic( this );
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break; // don't fall through (this is a testing one) */
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING
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case OpenGLCompositing:
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kDebug( 1212 ) << "OpenGL compositing";
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scene = new SceneOpenGL( this );
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if( !scene->initFailed())
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break; // -->
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delete scene;
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scene = NULL;
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break; // do not fall back to XRender for now, maybe in the future
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#endif
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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case XRenderCompositing:
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kDebug( 1212 ) << "XRender compositing";
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scene = new SceneXrender( this );
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break;
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#endif
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default:
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#ifndef KWIN_HAVE_COMPOSITING
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kDebug( 1212 ) << "Compositing was not available at compile time";
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#else
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kDebug( 1212 ) << "No compositing";
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#endif
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delete cm_selection;
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return;
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}
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if( scene == NULL || scene->initFailed())
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{
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kError( 1212 ) << "Failed to initialize compositing, compositing disabled";
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kError( 1212 ) << "Consult http://techbase.kde.org/Projects/KWin/4.0-release-notes#Setting_up";
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delete scene;
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scene = NULL;
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delete cm_selection;
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return;
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}
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int rate = 0;
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if( options->refreshRate > 0 )
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{ // use manually configured refresh rate
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rate = options->refreshRate;
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}
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#ifdef HAVE_XRANDR
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else
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{ // autoconfigure refresh rate based on XRandR info
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if( Extensions::randrAvailable() )
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{
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XRRScreenConfiguration *config = XRRGetScreenInfo( display(), rootWindow() );
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rate = xrrRefreshRate = XRRConfigCurrentRate( config );
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XRRFreeScreenConfigInfo( config );
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}
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}
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#endif
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// 0Hz or less is invalid, so we fallback to a default rate
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if( rate <= 0 )
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rate = 50;
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// QTimer gives us 1msec (1000Hz) at best, so we ignore anything higher;
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// however, additional throttling prevents very high rates from taking place anyway
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else if( rate > 1000 )
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rate = 1000;
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kDebug( 1212 ) << "Refresh rate " << rate << "Hz";
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compositeRate = 1000 / rate;
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lastCompositePaint.start();
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// fake a previous paint, so that the next starts right now
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nextPaintReference = QTime::currentTime().addMSecs( -compositeRate );
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compositeTimer.setSingleShot( true );
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checkCompositeTimer();
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composite_paint_times.clear();
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XCompositeRedirectSubwindows( display(), rootWindow(), CompositeRedirectManual );
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new EffectsHandlerImpl( scene->compositingType() ); // sets also the 'effects' pointer
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addRepaintFull();
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foreach( Client* c, clients )
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c->setupCompositing();
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foreach( Client* c, desktops )
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c->setupCompositing();
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foreach( Unmanaged* c, unmanaged )
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c->setupCompositing();
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foreach( Client* c, clients )
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scene->windowAdded( c );
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foreach( Client* c, desktops )
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scene->windowAdded( c );
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foreach( Unmanaged* c, unmanaged )
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scene->windowAdded( c );
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discardPopup(); // force re-creation of the Alt+F3 popup (opacity option)
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#else
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kDebug( 1212 ) << "Compositing was not available at compile time";
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#endif
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}
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void Workspace::finishCompositing()
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{
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#ifdef KWIN_HAVE_COMPOSITING
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if( scene == NULL )
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return;
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delete cm_selection;
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foreach( Client* c, clients )
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scene->windowClosed( c, NULL );
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foreach( Client* c, desktops )
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scene->windowClosed( c, NULL );
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foreach( Unmanaged* c, unmanaged )
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scene->windowClosed( c, NULL );
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foreach( Deleted* c, deleted )
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scene->windowDeleted( c );
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foreach( Client* c, clients )
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c->finishCompositing();
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foreach( Client* c, desktops )
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c->finishCompositing();
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foreach( Unmanaged* c, unmanaged )
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c->finishCompositing();
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foreach( Deleted* c, deleted )
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c->finishCompositing();
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XCompositeUnredirectSubwindows( display(), rootWindow(), CompositeRedirectManual );
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delete effects;
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effects = NULL;
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delete scene;
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scene = NULL;
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compositeTimer.stop();
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mousePollingTimer.stop();
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repaints_region = QRegion();
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for( ClientList::ConstIterator it = clients.constBegin();
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it != clients.constEnd();
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++it )
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{ // forward all opacity values to the frame in case there'll be other CM running
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if( (*it)->opacity() != 1.0 )
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{
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NETWinInfo2 i( display(), (*it)->frameId(), rootWindow(), 0 );
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i.setOpacity( static_cast< unsigned long >((*it)->opacity() * 0xffffffff ));
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}
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}
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discardPopup(); // force re-creation of the Alt+F3 popup (opacity option)
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// discard all Deleted windows (#152914)
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while( !deleted.isEmpty())
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deleted.first()->discard( Allowed );
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#endif
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}
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void Workspace::lostCMSelection()
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{
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kDebug( 1212 ) << "Lost compositing manager selection";
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finishCompositing();
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}
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// for the shortcut
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void Workspace::slotToggleCompositing()
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{
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suspendCompositing( !compositingSuspended );
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}
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void Workspace::suspendCompositing()
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{
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suspendCompositing( true );
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}
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void Workspace::suspendCompositing( bool suspend )
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{
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compositingSuspended = suspend;
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finishCompositing();
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setupCompositing(); // will do nothing if suspended
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}
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void Workspace::resetCompositing()
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{
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if( compositing())
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{
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finishCompositing();
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QTimer::singleShot( 0, this, SLOT( setupCompositing()));
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}
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}
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void Workspace::addRepaint( int x, int y, int w, int h )
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{
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if( !compositing())
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return;
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repaints_region += QRegion( x, y, w, h );
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checkCompositeTimer();
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}
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void Workspace::addRepaint( const QRect& r )
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{
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if( !compositing())
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return;
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repaints_region += r;
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checkCompositeTimer();
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}
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void Workspace::addRepaint( const QRegion& r )
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{
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if( !compositing())
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return;
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repaints_region += r;
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checkCompositeTimer();
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}
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void Workspace::addRepaintFull()
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{
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if( !compositing())
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return;
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repaints_region = QRegion( 0, 0, displayWidth(), displayHeight());
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checkCompositeTimer();
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}
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void Workspace::performCompositing()
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{
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#ifdef KWIN_HAVE_COMPOSITING
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// The event loop apparently tries to fire a QTimer as often as possible, even
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// at the expense of not processing many X events. This means that the composite
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// repaints can seriously impact performance of everything else, therefore throttle
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// them - leave at least 1msec time after one repaint is finished and next one
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// is started.
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if( lastCompositePaint.elapsed() < 1 )
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{
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compositeTimer.start( 1 );
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return;
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}
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if( !scene->waitSyncAvailable())
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nextPaintReference = QTime::currentTime();
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if((( repaints_region.isEmpty() && !windowRepaintsPending()) // no damage
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|| !overlay_visible )) // nothing is visible anyway
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{
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scene->idle();
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// Note: It would seem here we should undo suspended unredirect, but when scenes need
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// it for some reason, e.g. transformations or translucency, the next pass that does not
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// need this anymore and paints normally will also reset the suspended unredirect.
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// Otherwise the window would not be painted normally anyway.
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return;
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}
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// create a list of all windows in the stacking order
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ToplevelList windows = xStackingOrder();
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foreach( EffectWindow* c, static_cast< EffectsHandlerImpl* >( effects )->elevatedWindows())
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{
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Toplevel* t = static_cast< EffectWindowImpl* >( c )->window();
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windows.removeAll( t );
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windows.append( t );
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}
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// skip windows that are not yet ready for being painted
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ToplevelList tmp = windows;
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windows.clear();
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#if 0
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// There is a bug somewhere that prevents this from working properly (#160393), but additionally
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// this cannot be used so carelessly - needs protections against broken clients, the window
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// should not get focus before it's displayed, handle unredirected windows properly and so on.
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foreach( Toplevel* c, tmp )
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if( c->readyForPainting())
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windows.append( c );
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#else
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foreach( Toplevel* c, tmp )
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windows.append( c );
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#endif
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foreach( Toplevel* c, windows )
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{ // This could be possibly optimized WRT obscuring, but that'd need being already
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// past prePaint() phase - probably not worth it.
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// TODO I think effects->transformWindowDamage() doesn't need to be called here,
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// pre-paint will extend painted window areas as necessary.
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repaints_region |= c->repaints().translated( c->pos());
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c->resetRepaints( c->rect());
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}
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QRegion repaints = repaints_region;
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// clear all repaints, so that post-pass can add repaints for the next repaint
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repaints_region = QRegion();
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QTime t = QTime::currentTime();
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scene->paint( repaints, windows );
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if( scene->waitSyncAvailable())
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{
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// If vsync is used, schedule the next repaint slightly in advance of the next sync,
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// so that there is still time for the drawing to take place. We have just synced, and
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// nextPaintReference is time from which multiples of compositeRate should be added,
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// so set it 10ms back (meaning next paint will be in 'compositeRate - 10').
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// However, make sure the reserve is smaller than the composite rate.
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int reserve = compositeRate <= 10 ? compositeRate - 1 : 10;
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nextPaintReference = QTime::currentTime().addMSecs( -reserve );
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}
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// Trigger at least one more pass even if there would be nothing to paint, so that scene->idle()
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// is called the next time. If there would be nothing pending, it will not restart the timer and
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// checkCompositeTime() would restart it again somewhen later, called from functions that
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// would again add something pending.
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checkCompositeTimer();
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checkCompositePaintTime( t.elapsed());
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lastCompositePaint.start();
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#endif
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}
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void Workspace::performMousePoll()
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{
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checkCursorPos();
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}
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bool Workspace::windowRepaintsPending() const
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{
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foreach( Toplevel* c, clients )
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if( !c->repaints().isEmpty())
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return true;
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foreach( Toplevel* c, desktops )
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if( !c->repaints().isEmpty())
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return true;
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foreach( Toplevel* c, unmanaged )
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if( !c->repaints().isEmpty())
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return true;
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foreach( Toplevel* c, deleted )
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if( !c->repaints().isEmpty())
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return true;
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return false;
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}
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void Workspace::setCompositeTimer()
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{
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if( !compositing()) // should not really happen, but there may be e.g. some damage events still pending
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return;
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// The last paint set nextPaintReference as a reference time to which multiples of compositeRate
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// should be added for the next paint. qBound() for protection; system time can change without notice.
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compositeTimer.start( qBound( 0, nextPaintReference.msecsTo( QTime::currentTime() ), 250 ) % compositeRate );
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}
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void Workspace::startMousePolling()
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{
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mousePollingTimer.start( 20 ); // 50Hz. TODO: How often do we really need to poll?
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}
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void Workspace::stopMousePolling()
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{
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mousePollingTimer.stop();
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}
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bool Workspace::createOverlay()
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{
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assert( overlay == None );
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if( !Extensions::compositeOverlayAvailable())
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return false;
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if( !Extensions::shapeInputAvailable()) // needed in setupOverlay()
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return false;
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#ifdef HAVE_XCOMPOSITE_OVERLAY
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overlay = XCompositeGetOverlayWindow( display(), rootWindow());
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if( overlay == None )
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return false;
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XResizeWindow(display(), overlay, displayWidth(), displayHeight());
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return true;
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#else
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return false;
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#endif
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}
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void Workspace::checkCompositePaintTime( int msec )
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{
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if( options->disableCompositingChecks )
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return;
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composite_paint_times.prepend( msec );
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bool tooslow = false;
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// If last 3 paints were way too slow, disable and warn.
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// 1 second seems reasonable, it's not that difficult to get relatively high times
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// with high system load.
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const int MAX_LONG_PAINT = 1000;
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if( composite_paint_times.count() >= 3 && composite_paint_times[ 0 ] > MAX_LONG_PAINT
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&& composite_paint_times[ 1 ] > MAX_LONG_PAINT && composite_paint_times[ 2 ] > MAX_LONG_PAINT )
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{
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kDebug( 1212 ) << "Too long paint times, suspending";
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tooslow = true;
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}
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// If last 15 seconds all paints (all of them) were quite slow, disable and warn too. Quite slow being 0,1s
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// should be reasonable, that's 10fps and having constant 10fps is bad.
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// This may possibly trigger also when activating an expensive effect, so this may need tweaking.
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const int MAX_SHORT_PAINT = 100;
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const int SHORT_TIME = 15000; // 15 sec
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int time = 0;
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foreach( int t, composite_paint_times )
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{
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if( t < MAX_SHORT_PAINT )
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break;
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time += t;
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if( time > SHORT_TIME ) // all paints in the given time were long
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{
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kDebug( 1212 ) << "Long paint times for long time, suspending";
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tooslow = true;
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break;
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}
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}
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if( composite_paint_times.count() > 1000 )
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composite_paint_times.removeLast();
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if( tooslow )
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{
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QTimer::singleShot( 0, this, SLOT( suspendCompositing()));
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QString shortcut, message;
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if( KAction* action = qobject_cast<KAction*>( keys->action("Suspend Compositing")))
|
|
shortcut = action->globalShortcut().primary().toString(QKeySequence::NativeText);
|
|
if (shortcut.isEmpty())
|
|
message = i18n( "Compositing was too slow and has been suspended.\n"
|
|
"You can disable functionality checks in advanced compositing settings." );
|
|
else
|
|
message = i18n( "Compositing was too slow and has been suspended.\n"
|
|
"If this was only a temporary problem, you can resume using the '%1' shortcut.\n"
|
|
"You can also disable functionality checks in advanced compositing settings.", shortcut );
|
|
Notify::raise( Notify::CompositingSlow, message );
|
|
compositeTimer.start( 1000 ); // so that it doesn't trigger sooner than suspendCompositing()
|
|
}
|
|
}
|
|
|
|
void Workspace::setupOverlay( Window w )
|
|
{
|
|
assert( overlay != None );
|
|
assert( Extensions::shapeInputAvailable());
|
|
XSetWindowBackgroundPixmap( display(), overlay, None );
|
|
overlay_shape = QRegion();
|
|
setOverlayShape( QRect( 0, 0, displayWidth(), displayHeight()));
|
|
if( w != None )
|
|
{
|
|
XSetWindowBackgroundPixmap( display(), w, None );
|
|
XShapeCombineRectangles( display(), w, ShapeInput, 0, 0, NULL, 0, ShapeSet, Unsorted );
|
|
}
|
|
XSelectInput( display(), overlay, VisibilityChangeMask );
|
|
}
|
|
|
|
void Workspace::showOverlay()
|
|
{
|
|
assert( overlay != None );
|
|
if( overlay_shown )
|
|
return;
|
|
XMapSubwindows( display(), overlay );
|
|
XMapWindow( display(), overlay );
|
|
overlay_shown = true;
|
|
}
|
|
|
|
void Workspace::hideOverlay()
|
|
{
|
|
assert( overlay != None );
|
|
XUnmapWindow( display(), overlay );
|
|
overlay_shown = false;
|
|
setOverlayShape( QRect( 0, 0, displayWidth(), displayHeight()));
|
|
}
|
|
|
|
void Workspace::setOverlayShape( const QRegion& reg )
|
|
{
|
|
// Avoid setting the same shape again, it causes flicker (apparently it is not a no-op
|
|
// and triggers something).
|
|
if( reg == overlay_shape )
|
|
return;
|
|
QVector< QRect > rects = reg.rects();
|
|
XRectangle* xrects = new XRectangle[ rects.count() ];
|
|
for( int i = 0;
|
|
i < rects.count();
|
|
++i )
|
|
{
|
|
xrects[ i ].x = rects[ i ].x();
|
|
xrects[ i ].y = rects[ i ].y();
|
|
xrects[ i ].width = rects[ i ].width();
|
|
xrects[ i ].height = rects[ i ].height();
|
|
}
|
|
XShapeCombineRectangles( display(), overlay, ShapeBounding, 0, 0,
|
|
xrects, rects.count(), ShapeSet, Unsorted );
|
|
delete[] xrects;
|
|
XShapeCombineRectangles( display(), overlay, ShapeInput, 0, 0, NULL, 0, ShapeSet, Unsorted );
|
|
overlay_shape = reg;
|
|
}
|
|
|
|
void Workspace::destroyOverlay()
|
|
{
|
|
if( overlay == None )
|
|
return;
|
|
// reset the overlay shape
|
|
XRectangle rec = { 0, 0, displayWidth(), displayHeight() };
|
|
XShapeCombineRectangles( display(), overlay, ShapeBounding, 0, 0, &rec, 1, ShapeSet, Unsorted );
|
|
XShapeCombineRectangles( display(), overlay, ShapeInput, 0, 0, &rec, 1, ShapeSet, Unsorted );
|
|
#ifdef HAVE_XCOMPOSITE_OVERLAY
|
|
XCompositeReleaseOverlayWindow( display(), overlay );
|
|
#endif
|
|
overlay = None;
|
|
overlay_shown = false;
|
|
}
|
|
|
|
bool Workspace::compositingActive()
|
|
{
|
|
return compositing();
|
|
}
|
|
|
|
// force is needed when the list of windows changes (e.g. a window goes away)
|
|
void Workspace::checkUnredirect( bool force )
|
|
{
|
|
if( !compositing() || overlay == None || !options->unredirectFullscreen )
|
|
return;
|
|
if( force )
|
|
forceUnredirectCheck = true;
|
|
if( !unredirectTimer.isActive())
|
|
unredirectTimer.start( 0 );
|
|
}
|
|
|
|
void Workspace::delayedCheckUnredirect()
|
|
{
|
|
if( !compositing() || overlay == None || !options->unredirectFullscreen )
|
|
return;
|
|
ToplevelList list;
|
|
bool changed = forceUnredirectCheck;
|
|
foreach( Client* c, clients )
|
|
list.append( c );
|
|
foreach( Unmanaged* c, unmanaged )
|
|
list.append( c );
|
|
foreach( Toplevel* c, list )
|
|
{
|
|
if( c->updateUnredirectedState())
|
|
changed = true;
|
|
}
|
|
// no desktops, no Deleted ones
|
|
if( !changed )
|
|
return;
|
|
forceUnredirectCheck = false;
|
|
// Cut out parts from the overlay window where unredirected windows are,
|
|
// so that they are actually visible.
|
|
QRegion reg( 0, 0, displayWidth(), displayHeight());
|
|
foreach( Toplevel* c, list )
|
|
{
|
|
if( c->unredirected())
|
|
reg -= c->geometry();
|
|
}
|
|
setOverlayShape( reg );
|
|
}
|
|
|
|
//****************************************
|
|
// Toplevel
|
|
//****************************************
|
|
|
|
void Toplevel::setupCompositing()
|
|
{
|
|
#ifdef KWIN_HAVE_COMPOSITING
|
|
if( !compositing())
|
|
return;
|
|
if( damage_handle != None )
|
|
return;
|
|
damage_handle = XDamageCreate( display(), frameId(), XDamageReportRawRectangles );
|
|
damage_region = QRegion( 0, 0, width(), height());
|
|
effect_window = new EffectWindowImpl();
|
|
effect_window->setWindow( this );
|
|
unredirect = false;
|
|
workspace()->checkUnredirect( true );
|
|
#endif
|
|
}
|
|
|
|
void Toplevel::finishCompositing()
|
|
{
|
|
#ifdef KWIN_HAVE_COMPOSITING
|
|
if( damage_handle == None )
|
|
return;
|
|
workspace()->checkUnredirect( true );
|
|
if( effect_window->window() == this ) // otherwise it's already passed to Deleted, don't free data
|
|
{
|
|
discardWindowPixmap();
|
|
delete effect_window;
|
|
}
|
|
XDamageDestroy( display(), damage_handle );
|
|
damage_handle = None;
|
|
damage_region = QRegion();
|
|
repaints_region = QRegion();
|
|
effect_window = NULL;
|
|
#endif
|
|
}
|
|
|
|
void Toplevel::discardWindowPixmap()
|
|
{
|
|
addDamageFull();
|
|
if( window_pix == None )
|
|
return;
|
|
XFreePixmap( display(), window_pix );
|
|
window_pix = None;
|
|
if( effectWindow() != NULL && effectWindow()->sceneWindow() != NULL )
|
|
effectWindow()->sceneWindow()->pixmapDiscarded();
|
|
}
|
|
|
|
Pixmap Toplevel::createWindowPixmap()
|
|
{
|
|
#ifdef KWIN_HAVE_COMPOSITING
|
|
assert( compositing());
|
|
if( unredirected())
|
|
return None;
|
|
grabXServer();
|
|
KXErrorHandler err;
|
|
Pixmap pix = XCompositeNameWindowPixmap( display(), frameId());
|
|
// check that the received pixmap is valid and actually matches what we
|
|
// know about the window (i.e. size)
|
|
XWindowAttributes attrs;
|
|
if( !XGetWindowAttributes( display(), frameId(), &attrs )
|
|
|| err.error( false )
|
|
|| attrs.width != width() || attrs.height != height() || attrs.map_state != IsViewable )
|
|
{
|
|
kDebug( 1212 ) << "Creating window pixmap failed: " << this;
|
|
XFreePixmap( display(), pix );
|
|
pix = None;
|
|
}
|
|
ungrabXServer();
|
|
return pix;
|
|
#else
|
|
return None;
|
|
#endif
|
|
}
|
|
|
|
#ifdef HAVE_XDAMAGE
|
|
void Toplevel::damageNotifyEvent( XDamageNotifyEvent* e )
|
|
{
|
|
QRegion damage( e->area.x, e->area.y, e->area.width, e->area.height );
|
|
// compress
|
|
int cnt = 1;
|
|
while( XPending( display()))
|
|
{
|
|
XEvent e2;
|
|
if( XPeekEvent( display(), &e2 ) && e2.type == Extensions::damageNotifyEvent()
|
|
&& e2.xany.window == frameId())
|
|
{
|
|
XNextEvent( display(), &e2 );
|
|
if( cnt > 200 )
|
|
{
|
|
// If there are way too many damage events in the queue, just discard them
|
|
// and damage the whole window. Otherwise the X server can just overload
|
|
// us with a flood of damage events. Should be probably optimized
|
|
// in the X server, as this is rather lame.
|
|
damage = rect();
|
|
continue;
|
|
}
|
|
XDamageNotifyEvent* e = reinterpret_cast< XDamageNotifyEvent* >( &e2 );
|
|
QRect r( e->area.x, e->area.y, e->area.width, e->area.height );
|
|
++cnt;
|
|
// If there are too many damaged rectangles, increase them
|
|
// to be multiples of 100x100 px grid, since QRegion get quite
|
|
// slow with many rectangles, and there is little to gain by using
|
|
// many small rectangles (rather the opposite, several large should
|
|
// be often faster).
|
|
if( cnt > 50 )
|
|
{
|
|
r.setLeft( r.left() / 100 * 100 );
|
|
r.setRight(( r.right() + 99 ) / 100 * 100 );
|
|
r.setTop( r.top() / 100 * 100 );
|
|
r.setBottom(( r.bottom() + 99 ) / 100 * 100 );
|
|
}
|
|
damage += r;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
foreach( const QRect& r, damage.rects())
|
|
addDamage( r );
|
|
}
|
|
|
|
void Client::damageNotifyEvent( XDamageNotifyEvent* e )
|
|
{
|
|
Toplevel::damageNotifyEvent( e );
|
|
#ifdef HAVE_XSYNC
|
|
if( sync_counter == None ) // cannot detect complete redraw, consider done now
|
|
ready_for_painting = true;
|
|
#else
|
|
ready_for_painting = true; // no sync at all, consider done now
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
void Toplevel::addDamage( const QRect& r )
|
|
{
|
|
addDamage( r.x(), r.y(), r.width(), r.height());
|
|
}
|
|
|
|
void Toplevel::addDamage( int x, int y, int w, int h )
|
|
{
|
|
if( !compositing())
|
|
return;
|
|
QRect r( x, y, w, h );
|
|
// resizing the decoration may lag behind a bit and when shrinking there
|
|
// may be a damage event coming with size larger than the current window size
|
|
r &= rect();
|
|
damage_region += r;
|
|
repaints_region += r;
|
|
static_cast<EffectsHandlerImpl*>(effects)->windowDamaged( effectWindow(), r );
|
|
workspace()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::addDamageFull()
|
|
{
|
|
if( !compositing())
|
|
return;
|
|
damage_region = rect();
|
|
repaints_region = rect();
|
|
static_cast<EffectsHandlerImpl*>(effects)->windowDamaged( effectWindow(), rect());
|
|
workspace()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::resetDamage( const QRect& r )
|
|
{
|
|
damage_region -= r;
|
|
}
|
|
|
|
void Toplevel::addRepaint( const QRect& r )
|
|
{
|
|
addRepaint( r.x(), r.y(), r.width(), r.height());
|
|
}
|
|
|
|
void Toplevel::addRepaint( int x, int y, int w, int h )
|
|
{
|
|
if( !compositing())
|
|
return;
|
|
QRect r( x, y, w, h );
|
|
r &= rect();
|
|
repaints_region += r;
|
|
workspace()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::addRepaintFull()
|
|
{
|
|
repaints_region = rect();
|
|
workspace()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::resetRepaints( const QRect& r )
|
|
{
|
|
repaints_region -= r;
|
|
}
|
|
|
|
void Toplevel::addWorkspaceRepaint( int x, int y, int w, int h )
|
|
{
|
|
addWorkspaceRepaint( QRect( x, y, w, h ));
|
|
}
|
|
|
|
void Toplevel::addWorkspaceRepaint( const QRect& r2 )
|
|
{
|
|
if( !compositing())
|
|
return;
|
|
if( effectWindow() == NULL ) // TODO - this can happen during window destruction
|
|
return workspace()->addRepaint( r2 );
|
|
QRect r = effects->transformWindowDamage( effectWindow(), r2 );
|
|
workspace()->addRepaint( r );
|
|
}
|
|
|
|
bool Toplevel::updateUnredirectedState()
|
|
{
|
|
assert( compositing());
|
|
bool should = shouldUnredirect() && !unredirectSuspend && !shape() && !hasAlpha() && opacity() == 1.0 &&
|
|
!static_cast<EffectsHandlerImpl*>( effects )->activeFullScreenEffect();
|
|
if( should && !unredirect )
|
|
{
|
|
unredirect = true;
|
|
kDebug( 1212 ) << "Unredirecting:" << this;
|
|
#ifdef HAVE_XCOMPOSITE
|
|
XCompositeUnredirectWindow( display(), frameId(), CompositeRedirectManual );
|
|
#endif
|
|
return true;
|
|
}
|
|
else if( !should && unredirect )
|
|
{
|
|
unredirect = false;
|
|
kDebug( 1212 ) << "Redirecting:" << this;
|
|
#ifdef HAVE_XCOMPOSITE
|
|
XCompositeRedirectWindow( display(), frameId(), CompositeRedirectManual );
|
|
#endif
|
|
discardWindowPixmap();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void Toplevel::suspendUnredirect( bool suspend )
|
|
{
|
|
if( unredirectSuspend == suspend )
|
|
return;
|
|
unredirectSuspend = suspend;
|
|
workspace()->checkUnredirect();
|
|
}
|
|
|
|
//****************************************
|
|
// Client
|
|
//****************************************
|
|
|
|
void Client::setupCompositing()
|
|
{
|
|
Toplevel::setupCompositing();
|
|
updateVisibility(); // for internalKeep()
|
|
}
|
|
|
|
void Client::finishCompositing()
|
|
{
|
|
Toplevel::finishCompositing();
|
|
updateVisibility();
|
|
}
|
|
|
|
bool Client::shouldUnredirect() const
|
|
{
|
|
if( isActiveFullScreen())
|
|
{
|
|
ToplevelList stacking = workspace()->xStackingOrder();
|
|
for( int pos = stacking.count() - 1;
|
|
pos >= 0;
|
|
--pos )
|
|
{
|
|
Toplevel* c = stacking.at( pos );
|
|
if( c == this ) // is not covered by any other window, ok to unredirect
|
|
return true;
|
|
if( c->geometry().intersects( geometry()))
|
|
return false;
|
|
}
|
|
abort();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//****************************************
|
|
// Unmanaged
|
|
//****************************************
|
|
|
|
bool Unmanaged::shouldUnredirect() const
|
|
{
|
|
// the pixmap is needed for the login effect, a nicer solution would be the login effect increasing
|
|
// refcount for the window pixmap (which would prevent unredirect), avoiding this hack
|
|
if( resourceClass() == "ksplashx" || resourceClass() == "ksplashsimple" )
|
|
return false;
|
|
// it must cover whole display or one xinerama screen, and be the topmost there
|
|
if( geometry() == workspace()->clientArea( FullArea, geometry().center(), workspace()->currentDesktop())
|
|
|| geometry() == workspace()->clientArea( ScreenArea, geometry().center(), workspace()->currentDesktop()))
|
|
{
|
|
ToplevelList stacking = workspace()->xStackingOrder();
|
|
for( int pos = stacking.count() - 1;
|
|
pos >= 0;
|
|
--pos )
|
|
{
|
|
Toplevel* c = stacking.at( pos );
|
|
if( c == this ) // is not covered by any other window, ok to unredirect
|
|
return true;
|
|
if( c->geometry().intersects( geometry()))
|
|
return false;
|
|
}
|
|
abort();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//****************************************
|
|
// Deleted
|
|
//****************************************
|
|
|
|
bool Deleted::shouldUnredirect() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
} // namespace
|