523b537962
Replaces the member variable which is actually not needed as a pointer to the Workspace can always be retrieved through the singleton accessor of Workspace.
1056 lines
34 KiB
C++
1056 lines
34 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 "overlaywindow.h"
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#include "scene.h"
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#include "scene_xrender.h"
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#include "scene_opengl.h"
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#include "shadow.h"
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#include "useractions.h"
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#include "compositingprefs.h"
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#include "composite.h"
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#include "notifications.h"
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#include <stdio.h>
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#include <QtCore/QtConcurrentRun>
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#include <QtCore/QFutureWatcher>
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#include <QMenu>
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#include <QTimerEvent>
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#include <QDateTime>
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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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#include <X11/extensions/Xcomposite.h>
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#include <X11/extensions/Xrandr.h>
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namespace KWin
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{
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extern int currentRefreshRate();
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//****************************************
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// Workspace
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//****************************************
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Compositor::Compositor(QObject* workspace)
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: QObject(workspace)
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, compositingSuspended(!options->isUseCompositing())
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, compositingBlocked(false)
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, m_xrrRefreshRate(0)
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{
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connect(&unredirectTimer, SIGNAL(timeout()), SLOT(delayedCheckUnredirect()));
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connect(&compositeResetTimer, SIGNAL(timeout()), SLOT(resetCompositing()));
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connect(workspace, SIGNAL(configChanged()), SLOT(slotConfigChanged()));
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connect(workspace, SIGNAL(reinitializeCompositing()), SLOT(slotReinitialize()));
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connect(&mousePollingTimer, SIGNAL(timeout()), SLOT(performMousePoll()));
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unredirectTimer.setSingleShot(true);
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compositeResetTimer.setSingleShot(true);
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nextPaintReference.invalidate(); // Initialize the timer
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// delay the call to setupCompositing by one event cycle
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// The ctor of this class is invoked from the Workspace ctor, that means before
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// Workspace is completely constructed, so calling Workspace::self() would result
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// in undefined behavior. This is fixed by using a delayed invocation.
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QMetaObject::invokeMethod(this, "setupCompositing", Qt::QueuedConnection);
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}
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Compositor::~Compositor()
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{
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finishCompositing();
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}
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void Compositor::setupCompositing()
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{
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if (scene != NULL)
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return;
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if (compositingSuspended) {
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kDebug(1212) << "Compositing is suspended";
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return;
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} else if (!CompositingPrefs::compositingPossible()) {
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kError(1212) << "Compositing is not possible";
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return;
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}
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if (!options->isCompositingInitialized()) {
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#ifndef KWIN_HAVE_OPENGLES
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// options->reloadCompositingSettings(true) initializes the CompositingPrefs which calls an
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// external program in turn
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// run this in an external thread to make startup faster.
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QFutureWatcher<void> *compositingPrefsFuture = new QFutureWatcher<void>();
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connect(compositingPrefsFuture, SIGNAL(finished()), this, SLOT(slotCompositingOptionsInitialized()));
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connect(compositingPrefsFuture, SIGNAL(finished()), compositingPrefsFuture, SLOT(deleteLater()));
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compositingPrefsFuture->setFuture(QtConcurrent::run(options, &Options::reloadCompositingSettings, true));
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#else
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// OpenGL ES does not call the external program, so no need to create a thread
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options->reloadCompositingSettings(true);
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slotCompositingOptionsInitialized();
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#endif
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} else {
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slotCompositingOptionsInitialized();
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}
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}
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void Compositor::slotCompositingOptionsInitialized()
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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(options->compositingMode()) {
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case OpenGLCompositing: {
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kDebug(1212) << "Initializing OpenGL compositing";
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// Some broken drivers crash on glXQuery() so to prevent constant KWin crashes:
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KSharedConfigPtr unsafeConfigPtr = KGlobal::config();
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KConfigGroup unsafeConfig(unsafeConfigPtr, "Compositing");
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if (unsafeConfig.readEntry("OpenGLIsUnsafe", false))
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kWarning(1212) << "KWin has detected that your OpenGL library is unsafe to use";
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else {
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unsafeConfig.writeEntry("OpenGLIsUnsafe", true);
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unsafeConfig.sync();
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#ifndef KWIN_HAVE_OPENGLES
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if (!CompositingPrefs::hasGlx()) {
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unsafeConfig.writeEntry("OpenGLIsUnsafe", false);
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unsafeConfig.sync();
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kDebug(1212) << "No glx extensions available";
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break;
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}
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#endif
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scene = new SceneOpenGL(Workspace::self());
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// TODO: Add 30 second delay to protect against screen freezes as well
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unsafeConfig.writeEntry("OpenGLIsUnsafe", false);
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unsafeConfig.sync();
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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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}
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// Do not Fall back to XRender - it causes problems when selfcheck fails during startup, but works later on
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break;
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}
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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case XRenderCompositing:
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kDebug(1212) << "Initializing XRender compositing";
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scene = new SceneXrender(Workspace::self());
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break;
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#endif
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default:
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kDebug(1212) << "No compositing enabled";
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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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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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m_xrrRefreshRate = KWin::currentRefreshRate();
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fpsInterval = (options->maxFpsInterval() << 10);
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if (scene->waitSyncAvailable()) { // if we do vsync, set the fps to the next multiple of the vblank rate
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vBlankInterval = (1000 << 10) / m_xrrRefreshRate;
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fpsInterval = qMax((fpsInterval / vBlankInterval) * vBlankInterval, vBlankInterval);
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} else
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vBlankInterval = 1 << 10; // no sync - DO NOT set "0", would cause div-by-zero segfaults.
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m_timeSinceLastVBlank = fpsInterval - 1; // means "start now" - we don't have even a slight idea when the first vsync will occur
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checkCompositeTimer();
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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, Workspace::self()->clientList())
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c->setupCompositing();
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foreach (Client * c, Workspace::self()->desktopList())
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c->setupCompositing();
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foreach (Unmanaged * c, Workspace::self()->unmanagedList())
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c->setupCompositing();
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// render at least once
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compositeTimer.stop();
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performCompositing();
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}
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void Compositor::checkCompositeTimer()
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{
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if (!compositeTimer.isActive())
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setCompositeTimer();
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}
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void Compositor::finishCompositing()
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{
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if (scene == NULL)
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return;
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m_finishingCompositing = true;
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delete cm_selection;
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foreach (Client * c, Workspace::self()->clientList())
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scene->windowClosed(c, NULL);
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foreach (Client * c, Workspace::self()->desktopList())
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scene->windowClosed(c, NULL);
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foreach (Unmanaged * c, Workspace::self()->unmanagedList())
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scene->windowClosed(c, NULL);
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foreach (Deleted * c, Workspace::self()->deletedList())
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scene->windowDeleted(c);
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foreach (Client * c, Workspace::self()->clientList())
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c->finishCompositing();
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foreach (Client * c, Workspace::self()->desktopList())
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c->finishCompositing();
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foreach (Unmanaged * c, Workspace::self()->unmanagedList())
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c->finishCompositing();
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foreach (Deleted * c, Workspace::self()->deletedList())
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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 = Workspace::self()->clientList().constBegin();
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it != Workspace::self()->clientList().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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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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// discard all Deleted windows (#152914)
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while (!Workspace::self()->deletedList().isEmpty())
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Workspace::self()->deletedList().first()->discard(Allowed);
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m_finishingCompositing = false;
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}
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// OpenGL self-check failed, fallback to XRender
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void Compositor::fallbackToXRenderCompositing()
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{
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finishCompositing();
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KConfigGroup config(KGlobal::config(), "Compositing");
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config.writeEntry("Backend", "XRender");
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config.writeEntry("GraphicsSystem", "native");
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config.sync();
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if (Extensions::nonNativePixmaps()) { // must restart to change the graphicssystem
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emit signalRestartKWin("automatic graphicssystem change for XRender backend");
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return;
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} else {
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options->setCompositingMode(XRenderCompositing);
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setupCompositing();
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}
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}
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void Compositor::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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void Compositor::slotConfigChanged()
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{
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if (!compositingSuspended) {
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setupCompositing();
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if (effects) // setupCompositing() may fail
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effects->reconfigure();
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addRepaintFull();
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} else
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finishCompositing();
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}
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void Compositor::slotReinitialize()
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{
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// Restart compositing
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finishCompositing();
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// resume compositing if suspended
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compositingSuspended = false;
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options->setCompositingInitialized(false);
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setupCompositing();
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}
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// for the shortcut
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void Compositor::slotToggleCompositing()
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{
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suspendCompositing(!compositingSuspended);
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}
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// for the dbus call
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void Compositor::toggleCompositing()
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{
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slotToggleCompositing();
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if (compositingSuspended) {
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// when disabled show a shortcut how the user can get back compositing
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QString shortcut, message;
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if (KAction* action = qobject_cast<KAction*>(Workspace::self()->actionCollection()->action("Suspend Compositing")))
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shortcut = action->globalShortcut().primary().toString(QKeySequence::NativeText);
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if (!shortcut.isEmpty()) {
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// display notification only if there is the shortcut
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message = i18n("Desktop effects have been suspended by another application.<br/>"
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"You can resume using the '%1' shortcut.", shortcut);
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Notify::raise(Notify::CompositingSuspendedDbus, message);
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}
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}
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}
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QStringList Workspace::activeEffects() const
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{
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if (effects)
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return static_cast< EffectsHandlerImpl* >(effects)->activeEffects();
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return QStringList();
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}
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void Compositor::updateCompositeBlocking(Client *c)
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{
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if (c) { // if c == 0 we just check if we can resume
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if (c->isBlockingCompositing()) {
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if (!compositingBlocked) // do NOT attempt to call suspendCompositing(true); from within the eventchain!
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QMetaObject::invokeMethod(this, "slotToggleCompositing", Qt::QueuedConnection);
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compositingBlocked = true;
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}
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}
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else if (compositingBlocked) { // lost a client and we're blocked - can we resume?
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// NOTICE do NOT check for "compositingSuspended" or "!compositing()"
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// only "resume" if it was really disabled for a block
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bool resume = true;
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for (ClientList::ConstIterator it = Workspace::self()->clientList().constBegin(); it != Workspace::self()->clientList().constEnd(); ++it) {
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if ((*it)->isBlockingCompositing()) {
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resume = false;
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break;
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}
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}
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if (resume) { // do NOT attempt to call suspendCompositing(false); from within the eventchain!
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compositingBlocked = false;
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if (compositingSuspended)
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QMetaObject::invokeMethod(this, "slotToggleCompositing", Qt::QueuedConnection);
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}
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}
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}
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void Compositor::suspendCompositing()
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{
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suspendCompositing(true);
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}
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void Compositor::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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emit compositingToggled(!compositingSuspended);
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}
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void Compositor::resetCompositing()
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{
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if (compositing()) {
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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 Compositor::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 Compositor::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 Compositor::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 Compositor::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 Compositor::timerEvent(QTimerEvent *te)
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{
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if (te->timerId() == compositeTimer.timerId()) {
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compositeTimer.stop();
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performCompositing();
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} else
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QObject::timerEvent(te);
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}
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static bool s_pending = false;
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void Compositor::performCompositing()
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{
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if (!scene->overlayWindow()->isVisible())
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return; // nothing is visible anyway
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bool pending = !repaints_region.isEmpty() || windowRepaintsPending();
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if (!(pending || s_pending)) {
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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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s_pending = pending;
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// create a list of all windows in the stacking order
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ToplevelList windows = Workspace::self()->xStackingOrder();
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foreach (EffectWindow * c, static_cast< EffectsHandlerImpl* >(effects)->elevatedWindows()) {
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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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// TODO ?
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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 *t, windows)
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if (!t->readyForPainting())
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windows.removeAll(t);
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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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m_timeSinceLastVBlank = scene->paint(repaints, windows);
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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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}
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void Compositor::performMousePoll()
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{
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Workspace::self()->checkCursorPos();
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}
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bool Compositor::windowRepaintsPending() const
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{
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foreach (Toplevel * c, Workspace::self()->clientList())
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if (!c->repaints().isEmpty())
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return true;
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foreach (Toplevel * c, Workspace::self()->desktopList())
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if (!c->repaints().isEmpty())
|
|
return true;
|
|
foreach (Toplevel * c, Workspace::self()->unmanagedList())
|
|
if (!c->repaints().isEmpty())
|
|
return true;
|
|
foreach (Toplevel * c, Workspace::self()->deletedList())
|
|
if (!c->repaints().isEmpty())
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
void Compositor::setCompositeResetTimer(int msecs)
|
|
{
|
|
compositeResetTimer.start(msecs);
|
|
}
|
|
|
|
void Compositor::setCompositeTimer()
|
|
{
|
|
if (!compositing()) // should not really happen, but there may be e.g. some damage events still pending
|
|
return;
|
|
|
|
uint padding = m_timeSinceLastVBlank << 10;
|
|
|
|
if (scene->waitSyncAvailable()) {
|
|
|
|
// TODO: make vBlankTime dynamic?!
|
|
// It's required because glXWaitVideoSync will *likely* block a full frame if one enters
|
|
// a retrace pass which can last a variable amount of time, depending on the actual screen
|
|
// Now, my ooold 19" CRT can do such retrace so that 2ms are entirely sufficient,
|
|
// while another ooold 15" TFT requires about 6ms
|
|
|
|
if (padding > fpsInterval) {
|
|
// we're at low repaints or spent more time in painting than the user wanted to wait for that frame
|
|
padding = vBlankInterval - (padding%vBlankInterval); // -> align to next vblank
|
|
} else { // -> align to the next maxFps tick
|
|
padding = ((vBlankInterval - padding%vBlankInterval) + (fpsInterval/vBlankInterval-1)*vBlankInterval);
|
|
// "remaining time of the first vsync" + "time for the other vsyncs of the frame"
|
|
}
|
|
|
|
if (padding < options->vBlankTime()) { // we'll likely miss this frame
|
|
m_nextFrameDelay = (padding + vBlankInterval) >> 10;
|
|
padding = (padding + vBlankInterval - options->vBlankTime()) >> 10; // so we add one
|
|
// qDebug() << "WE LOST A FRAME";
|
|
} else {
|
|
m_nextFrameDelay = padding >> 10;
|
|
padding = (padding - options->vBlankTime()) >> 10;
|
|
}
|
|
}
|
|
else // w/o vsync we just jump to the next demanded tick
|
|
// the "1" will ensure we don't block out the eventloop - the system's just not faster
|
|
// "0" would be sufficient, but the compositor isn't the WMs only task
|
|
m_nextFrameDelay = padding = (padding > (int)fpsInterval) ? 1 : ((fpsInterval - padding) >> 10);
|
|
compositeTimer.start(qMin(padding, 250u), this); // force 4fps minimum
|
|
}
|
|
|
|
void Compositor::startMousePolling()
|
|
{
|
|
mousePollingTimer.start(20); // 50Hz. TODO: How often do we really need to poll?
|
|
}
|
|
|
|
void Compositor::stopMousePolling()
|
|
{
|
|
mousePollingTimer.stop();
|
|
}
|
|
|
|
bool Compositor::compositingActive()
|
|
{
|
|
return !m_finishingCompositing && compositing();
|
|
}
|
|
|
|
// force is needed when the list of windows changes (e.g. a window goes away)
|
|
void Compositor::checkUnredirect(bool force)
|
|
{
|
|
if (!compositing() || scene->overlayWindow()->window() == None || !options->isUnredirectFullscreen())
|
|
return;
|
|
if (force)
|
|
forceUnredirectCheck = true;
|
|
if (!unredirectTimer.isActive())
|
|
unredirectTimer.start(0);
|
|
}
|
|
|
|
void Compositor::delayedCheckUnredirect()
|
|
{
|
|
if (!compositing() || scene->overlayWindow()->window() == None || !options->isUnredirectFullscreen())
|
|
return;
|
|
ToplevelList list;
|
|
bool changed = forceUnredirectCheck;
|
|
foreach (Client * c, Workspace::self()->clientList())
|
|
list.append(c);
|
|
foreach (Unmanaged * c, Workspace::self()->unmanagedList())
|
|
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();
|
|
}
|
|
scene->overlayWindow()->setShape(reg);
|
|
}
|
|
|
|
/*****************************************************
|
|
* Compositing related D-Bus interface from Workspace
|
|
****************************************************/
|
|
bool Workspace::compositingPossible() const
|
|
{
|
|
return CompositingPrefs::compositingPossible();
|
|
}
|
|
|
|
QString Workspace::compositingNotPossibleReason() const
|
|
{
|
|
return CompositingPrefs::compositingNotPossibleReason();
|
|
}
|
|
|
|
bool Workspace::openGLIsBroken() const
|
|
{
|
|
return CompositingPrefs::openGlIsBroken();
|
|
}
|
|
|
|
QString Workspace::compositingType()
|
|
{
|
|
// the returned strings are considered as identifiers and may not be translated
|
|
if (!effects) {
|
|
return "none";
|
|
}
|
|
if (effects->compositingType() == XRenderCompositing) {
|
|
return "xrender";
|
|
} else if (effects->compositingType() == OpenGLCompositing) {
|
|
#ifdef KWIN_HAVE_OPENGLES
|
|
return "gles";
|
|
#else
|
|
if (ShaderManager::instance()->isValid()) {
|
|
return "gl2";
|
|
} else {
|
|
return "gl1";
|
|
}
|
|
#endif
|
|
}
|
|
return "none";
|
|
}
|
|
|
|
//****************************************
|
|
// Toplevel
|
|
//****************************************
|
|
|
|
bool Toplevel::setupCompositing()
|
|
{
|
|
if (!compositing())
|
|
return false;
|
|
damageRatio = 0.0;
|
|
if (damage_handle != None)
|
|
return false;
|
|
damage_handle = XDamageCreate(display(), frameId(), XDamageReportRawRectangles);
|
|
damage_region = QRegion(0, 0, width(), height());
|
|
effect_window = new EffectWindowImpl(this);
|
|
unredirect = false;
|
|
workspace()->compositor()->checkUnredirect(true);
|
|
scene->windowAdded(this);
|
|
return true;
|
|
}
|
|
|
|
void Toplevel::finishCompositing()
|
|
{
|
|
damageRatio = 0.0;
|
|
if (damage_handle == None)
|
|
return;
|
|
workspace()->compositor()->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;
|
|
}
|
|
|
|
void Toplevel::discardWindowPixmap()
|
|
{
|
|
damageRatio = 0.0;
|
|
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()
|
|
{
|
|
assert(compositing());
|
|
if (unredirected())
|
|
return None;
|
|
damageRatio = 0.0;
|
|
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;
|
|
}
|
|
|
|
// We must specify that the two events are a union so the compiler doesn't
|
|
// complain about strict aliasing rules.
|
|
typedef union {
|
|
XEvent e;
|
|
XDamageNotifyEvent de;
|
|
} EventUnion;
|
|
|
|
static QVector<QRect> damageRects;
|
|
|
|
void Toplevel::damageNotifyEvent(XDamageNotifyEvent* e)
|
|
{
|
|
if (damageRatio == 1.0) { // we know that we're completely damaged, no need to tell us again
|
|
while (XPending(display())) { // drop events
|
|
EventUnion e2;
|
|
if (XPeekEvent(display(), &e2.e) && e2.e.type == Extensions::damageNotifyEvent() &&
|
|
e2.e.xany.window == frameId()) {
|
|
XNextEvent(display(), &e2.e);
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
const float area = rect().width()*rect().height();
|
|
damageRects.reserve(16);
|
|
damageRects.erase(damageRects.begin(), damageRects.end());
|
|
damageRects << QRect(e->area.x, e->area.y, e->area.width, e->area.height);
|
|
|
|
// we can not easily say anything about the overall ratio since the new rects may intersect the present
|
|
float newDamageRatio = damageRects.last().width()*damageRects.last().height() / area;
|
|
|
|
// compress
|
|
while (XPending(display())) {
|
|
EventUnion e2;
|
|
if (XPeekEvent(display(), &e2.e) && e2.e.type == Extensions::damageNotifyEvent()
|
|
&& e2.e.xany.window == frameId()) {
|
|
XNextEvent(display(), &e2.e);
|
|
if (damageRatio >= 0.8 || newDamageRatio > 0.8 || damageRects.count() > 15) {
|
|
// If there are 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.
|
|
newDamageRatio = 1.0;
|
|
damageRects.clear();
|
|
continue;
|
|
}
|
|
damageRects << QRect(e2.de.area.x, e2.de.area.y, e2.de.area.width, e2.de.area.height);
|
|
newDamageRatio += damageRects.last().width()*damageRects.last().height() / area;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
|
|
if ((damageRects.count() == 1 && damageRects.last() == rect()) ||
|
|
(damageRects.isEmpty() && newDamageRatio == 1.0)) {
|
|
addDamageFull();
|
|
} else {
|
|
foreach (const QRect &r, damageRects)
|
|
addDamage(r);
|
|
}
|
|
}
|
|
|
|
void Client::damageNotifyEvent(XDamageNotifyEvent* e)
|
|
{
|
|
#ifdef HAVE_XSYNC
|
|
if (syncRequest.isPending && isResize())
|
|
return;
|
|
if (!ready_for_painting) { // avoid "setReadyForPainting()" function calling overhead
|
|
if (syncRequest.counter == None) // cannot detect complete redraw, consider done now
|
|
setReadyForPainting();
|
|
}
|
|
#else
|
|
setReadyForPainting();
|
|
#endif
|
|
|
|
Toplevel::damageNotifyEvent(e);
|
|
}
|
|
|
|
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();
|
|
if (r.isEmpty())
|
|
return;
|
|
damage_region += r;
|
|
int damageArea = 0;
|
|
foreach (const QRect &r2, damage_region.rects())
|
|
damageArea += r2.width()*r2.height();
|
|
damageRatio = float(damageArea) / float(rect().width()*rect().height());
|
|
repaints_region += r;
|
|
emit damaged(this, r);
|
|
// discard lanczos texture
|
|
if (effect_window) {
|
|
QVariant cachedTextureVariant = effect_window->data(LanczosCacheRole);
|
|
if (cachedTextureVariant.isValid()) {
|
|
GLTexture *cachedTexture = static_cast< GLTexture*>(cachedTextureVariant.value<void*>());
|
|
delete cachedTexture;
|
|
cachedTexture = 0;
|
|
effect_window->setData(LanczosCacheRole, QVariant());
|
|
}
|
|
}
|
|
workspace()->compositor()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::addDamageFull()
|
|
{
|
|
if (!compositing())
|
|
return;
|
|
damage_region = rect();
|
|
repaints_region = rect();
|
|
damageRatio = 1.0;
|
|
emit damaged(this, rect());
|
|
// discard lanczos texture
|
|
if (effect_window) {
|
|
QVariant cachedTextureVariant = effect_window->data(LanczosCacheRole);
|
|
if (cachedTextureVariant.isValid()) {
|
|
GLTexture *cachedTexture = static_cast< GLTexture*>(cachedTextureVariant.value<void*>());
|
|
delete cachedTexture;
|
|
cachedTexture = 0;
|
|
effect_window->setData(LanczosCacheRole, QVariant());
|
|
}
|
|
}
|
|
workspace()->compositor()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::resetDamage(const QRect& r)
|
|
{
|
|
damage_region -= r;
|
|
int damageArea = 0;
|
|
foreach (const QRect &r2, damage_region.rects())
|
|
damageArea += r2.width()*r2.height();
|
|
damageRatio = float(damageArea) / float(rect().width()*rect().height());
|
|
}
|
|
|
|
void Toplevel::addRepaint(const QRect& r)
|
|
{
|
|
if (!compositing()) {
|
|
return;
|
|
}
|
|
repaints_region += r;
|
|
workspace()->compositor()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::addRepaint(int x, int y, int w, int h)
|
|
{
|
|
QRect r(x, y, w, h);
|
|
addRepaint(r);
|
|
}
|
|
|
|
void Toplevel::addRepaint(const QRegion& r)
|
|
{
|
|
if (!compositing()) {
|
|
return;
|
|
}
|
|
repaints_region += r;
|
|
workspace()->compositor()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::addLayerRepaint(const QRect& r)
|
|
{
|
|
if (!compositing()) {
|
|
return;
|
|
}
|
|
layer_repaints_region += r;
|
|
workspace()->compositor()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::addLayerRepaint(int x, int y, int w, int h)
|
|
{
|
|
QRect r(x, y, w, h);
|
|
addLayerRepaint(r);
|
|
}
|
|
|
|
void Toplevel::addLayerRepaint(const QRegion& r)
|
|
{
|
|
if (!compositing())
|
|
return;
|
|
layer_repaints_region += r;
|
|
workspace()->compositor()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::addRepaintFull()
|
|
{
|
|
repaints_region = visibleRect().translated(-pos());
|
|
workspace()->compositor()->checkCompositeTimer();
|
|
}
|
|
|
|
void Toplevel::resetRepaints()
|
|
{
|
|
repaints_region = QRegion();
|
|
layer_repaints_region = QRegion();
|
|
}
|
|
|
|
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;
|
|
workspace()->compositor()->addRepaint(r2);
|
|
}
|
|
|
|
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;
|
|
XCompositeUnredirectWindow(display(), frameId(), CompositeRedirectManual);
|
|
return true;
|
|
} else if (!should && unredirect) {
|
|
unredirect = false;
|
|
kDebug(1212) << "Redirecting:" << this;
|
|
XCompositeRedirectWindow(display(), frameId(), CompositeRedirectManual);
|
|
discardWindowPixmap();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void Toplevel::suspendUnredirect(bool suspend)
|
|
{
|
|
if (unredirectSuspend == suspend)
|
|
return;
|
|
unredirectSuspend = suspend;
|
|
workspace()->compositor()->checkUnredirect();
|
|
}
|
|
|
|
//****************************************
|
|
// Client
|
|
//****************************************
|
|
|
|
bool Client::setupCompositing()
|
|
{
|
|
if (!Toplevel::setupCompositing()){
|
|
return false;
|
|
}
|
|
updateVisibility(); // for internalKeep()
|
|
if (isManaged()) {
|
|
// only create the decoration when a client is managed
|
|
updateDecoration(true, true);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void Client::finishCompositing()
|
|
{
|
|
Toplevel::finishCompositing();
|
|
updateVisibility();
|
|
if (!deleting) {
|
|
// only recreate the decoration if we are not shutting down completely
|
|
updateDecoration(true, true);
|
|
}
|
|
// for safety in case KWin is just resizing the window
|
|
s_haveResizeEffect = false;
|
|
}
|
|
|
|
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"
|
|
|| resourceClass() == "ksplashqml"
|
|
)
|
|
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
|