bb9f59a89c
Use XDamageReportNonEmpty instead of XDamageReportRawRectangles. In XDamageReportNonEmpty mode the server generates a single damage event when the damage state transitions from not-damaged to damaged. When the compositor is ready to paint the screen, it requests the damage region for each window and resets the state to not-damaged. With XCB we can request the damage regions for all windows in a single roundtrip, making this the preferred mode. This should reduce the number of wakeups and the time spent processing damage events between repaints.
1226 lines
37 KiB
C++
1226 lines
37 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 "composite.h"
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#include "compositingadaptor.h"
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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 "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 <QDBusConnection>
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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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#include <xcb/damage.h>
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namespace KWin
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{
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Compositor *Compositor::s_compositor = NULL;
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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::createCompositor(QObject *parent)
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{
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Q_ASSERT(!s_compositor);
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s_compositor = new Compositor(parent);
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return s_compositor;
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}
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Compositor::Compositor(QObject* workspace)
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: QObject(workspace)
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, m_suspended(!options->isUseCompositing())
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, m_blocked(false)
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, cm_selection(NULL)
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, vBlankInterval(0)
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, fpsInterval(0)
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, m_xrrRefreshRate(0)
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, forceUnredirectCheck(false)
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, m_finishing(false)
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, m_timeSinceLastVBlank(0)
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, m_nextFrameDelay(0)
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, m_scene(NULL)
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{
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new CompositingAdaptor(this);
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QDBusConnection dbus = QDBusConnection::sessionBus();
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dbus.registerObject("/Compositor", this);
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dbus.registerService("org.kde.kwin.Compositing");
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connect(&unredirectTimer, SIGNAL(timeout()), SLOT(delayedCheckUnredirect()));
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connect(&compositeResetTimer, SIGNAL(timeout()), SLOT(restart()));
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connect(workspace, SIGNAL(configChanged()), SLOT(slotConfigChanged()));
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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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m_releaseSelectionTimer.setSingleShot(true);
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// 2 sec which should be enough to restart the compositor
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m_releaseSelectionTimer.setInterval(2000);
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connect(&m_releaseSelectionTimer, SIGNAL(timeout()), SLOT(releaseCompositorSelection()));
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// delay the call to setup 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, "setup", Qt::QueuedConnection);
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}
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Compositor::~Compositor()
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{
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finish();
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delete cm_selection;
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}
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void Compositor::setup()
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{
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if (hasScene())
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return;
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if (m_suspended) {
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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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m_starting = true;
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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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if (!cm_selection) {
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cm_selection = new KSelectionOwner(selection_name);
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connect(cm_selection, SIGNAL(lostOwnership()), SLOT(finish()));
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}
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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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m_scene = SceneOpenGL::createScene();
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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 (m_scene && !m_scene->initFailed())
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break; // -->
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delete m_scene;
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m_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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m_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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m_starting = false;
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cm_selection->release();
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return;
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}
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if (m_scene == NULL || m_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 m_scene;
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m_scene = NULL;
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m_starting = false;
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cm_selection->release();
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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 (m_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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scheduleRepaint();
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XCompositeRedirectSubwindows(display(), rootWindow(), CompositeRedirectManual);
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new EffectsHandlerImpl(this, m_scene); // sets also the 'effects' pointer
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connect(effects, SIGNAL(screenGeometryChanged(QSize)), SLOT(addRepaintFull()));
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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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emit compositingToggled(true);
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m_starting = false;
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if (m_releaseSelectionTimer.isActive()) {
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m_releaseSelectionTimer.stop();
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}
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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::scheduleRepaint()
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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::finish()
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{
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if (!hasScene())
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return;
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m_finishing = true;
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m_releaseSelectionTimer.start();
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foreach (Client * c, Workspace::self()->clientList())
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m_scene->windowClosed(c, NULL);
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foreach (Client * c, Workspace::self()->desktopList())
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m_scene->windowClosed(c, NULL);
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foreach (Unmanaged * c, Workspace::self()->unmanagedList())
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m_scene->windowClosed(c, NULL);
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foreach (Deleted * c, Workspace::self()->deletedList())
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m_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 m_scene;
|
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m_scene = NULL;
|
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compositeTimer.stop();
|
|
mousePollingTimer.stop();
|
|
repaints_region = QRegion();
|
|
for (ClientList::ConstIterator it = Workspace::self()->clientList().constBegin();
|
|
it != Workspace::self()->clientList().constEnd();
|
|
++it) {
|
|
// forward all opacity values to the frame in case there'll be other CM running
|
|
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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}
|
|
// discard all Deleted windows (#152914)
|
|
while (!Workspace::self()->deletedList().isEmpty())
|
|
Workspace::self()->deletedList().first()->discard(Allowed);
|
|
m_finishing = false;
|
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emit compositingToggled(false);
|
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}
|
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|
|
void Compositor::releaseCompositorSelection()
|
|
{
|
|
if (hasScene() && !m_finishing) {
|
|
// compositor is up and running again, no need to release the selection
|
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return;
|
|
}
|
|
if (m_starting) {
|
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// currently still starting the compositor, it might fail, so restart the timer to test again
|
|
m_releaseSelectionTimer.start();
|
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return;
|
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}
|
|
|
|
if (m_finishing) {
|
|
// still shutting down, a restart might follow, so restart the timer to test again
|
|
m_releaseSelectionTimer.start();
|
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return;
|
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}
|
|
kDebug(1212) << "Releasing compositor selection";
|
|
cm_selection->release();
|
|
}
|
|
|
|
// OpenGL self-check failed, fallback to XRender
|
|
void Compositor::fallbackToXRenderCompositing()
|
|
{
|
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finish();
|
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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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restartKWin("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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setup();
|
|
}
|
|
}
|
|
|
|
void Compositor::slotConfigChanged()
|
|
{
|
|
if (!m_suspended) {
|
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setup();
|
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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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finish();
|
|
}
|
|
|
|
void Compositor::slotReinitialize()
|
|
{
|
|
// Reparse config. Config options will be reloaded by setup()
|
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KGlobal::config()->reparseConfiguration();
|
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const QString graphicsSystem = KConfigGroup(KGlobal::config(), "Compositing").readEntry("GraphicsSystem", "");
|
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if ((Extensions::nonNativePixmaps() && graphicsSystem == "native") ||
|
|
(!Extensions::nonNativePixmaps() && (graphicsSystem == "raster" || graphicsSystem == "opengl")) ) {
|
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restartKWin("explicitly reconfigured graphicsSystem change");
|
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return;
|
|
}
|
|
|
|
// Update any settings that can be set in the compositing kcm.
|
|
#ifdef KWIN_BUILD_SCREENEDGES
|
|
Workspace::self()->screenEdge()->update();
|
|
#endif
|
|
// Restart compositing
|
|
finish();
|
|
// resume compositing if suspended
|
|
m_suspended = false;
|
|
options->setCompositingInitialized(false);
|
|
setup();
|
|
|
|
if (effects) { // setup() may fail
|
|
effects->reconfigure();
|
|
}
|
|
}
|
|
|
|
// for the shortcut
|
|
void Compositor::slotToggleCompositing()
|
|
{
|
|
setCompositing(m_suspended);
|
|
}
|
|
|
|
// for the dbus call
|
|
void Compositor::toggleCompositing()
|
|
{
|
|
slotToggleCompositing();
|
|
if (m_suspended) {
|
|
// when disabled show a shortcut how the user can get back compositing
|
|
QString shortcut, message;
|
|
if (KAction* action = qobject_cast<KAction*>(Workspace::self()->actionCollection()->action("Suspend Compositing")))
|
|
shortcut = action->globalShortcut().primary().toString(QKeySequence::NativeText);
|
|
if (!shortcut.isEmpty()) {
|
|
// display notification only if there is the shortcut
|
|
message = i18n("Desktop effects have been suspended by another application.<br/>"
|
|
"You can resume using the '%1' shortcut.", shortcut);
|
|
Notify::raise(Notify::CompositingSuspendedDbus, message);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Compositor::updateCompositeBlocking()
|
|
{
|
|
updateCompositeBlocking(NULL);
|
|
}
|
|
|
|
void Compositor::updateCompositeBlocking(Client *c)
|
|
{
|
|
if (c) { // if c == 0 we just check if we can resume
|
|
if (c->isBlockingCompositing()) {
|
|
if (!m_blocked) // do NOT attempt to call suspend(true); from within the eventchain!
|
|
QMetaObject::invokeMethod(this, "suspend", Qt::QueuedConnection);
|
|
m_blocked = true;
|
|
}
|
|
}
|
|
else if (m_blocked) { // lost a client and we're blocked - can we resume?
|
|
// NOTICE do NOT check for "m_Suspended" or "!compositing()"
|
|
// only "resume" if it was really disabled for a block
|
|
bool resume = true;
|
|
for (ClientList::ConstIterator it = Workspace::self()->clientList().constBegin(); it != Workspace::self()->clientList().constEnd(); ++it) {
|
|
if ((*it)->isBlockingCompositing()) {
|
|
resume = false;
|
|
break;
|
|
}
|
|
}
|
|
if (resume) { // do NOT attempt to call suspend(false); from within the eventchain!
|
|
m_blocked = false;
|
|
if (m_suspended)
|
|
QMetaObject::invokeMethod(this, "resume", Qt::QueuedConnection);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Compositor::suspend()
|
|
{
|
|
if (m_suspended) {
|
|
return;
|
|
}
|
|
m_suspended = true;
|
|
finish();
|
|
}
|
|
|
|
void Compositor::resume()
|
|
{
|
|
if (!m_suspended && hasScene()) {
|
|
return;
|
|
}
|
|
m_suspended = false;
|
|
// signal toggled is eventually emitted from within setup
|
|
setup();
|
|
}
|
|
|
|
void Compositor::setCompositing(bool active)
|
|
{
|
|
if (active) {
|
|
resume();
|
|
} else {
|
|
suspend();
|
|
}
|
|
}
|
|
|
|
void Compositor::restart()
|
|
{
|
|
if (hasScene()) {
|
|
finish();
|
|
QTimer::singleShot(0, this, SLOT(setup()));
|
|
}
|
|
}
|
|
|
|
void Compositor::addRepaint(int x, int y, int w, int h)
|
|
{
|
|
if (!hasScene())
|
|
return;
|
|
repaints_region += QRegion(x, y, w, h);
|
|
scheduleRepaint();
|
|
}
|
|
|
|
void Compositor::addRepaint(const QRect& r)
|
|
{
|
|
if (!hasScene())
|
|
return;
|
|
repaints_region += r;
|
|
scheduleRepaint();
|
|
}
|
|
|
|
void Compositor::addRepaint(const QRegion& r)
|
|
{
|
|
if (!hasScene())
|
|
return;
|
|
repaints_region += r;
|
|
scheduleRepaint();
|
|
}
|
|
|
|
void Compositor::addRepaintFull()
|
|
{
|
|
if (!hasScene())
|
|
return;
|
|
repaints_region = QRegion(0, 0, displayWidth(), displayHeight());
|
|
scheduleRepaint();
|
|
}
|
|
|
|
void Compositor::timerEvent(QTimerEvent *te)
|
|
{
|
|
if (te->timerId() == compositeTimer.timerId()) {
|
|
compositeTimer.stop();
|
|
performCompositing();
|
|
} else
|
|
QObject::timerEvent(te);
|
|
}
|
|
|
|
static int s_pendingFlushes = 0;
|
|
|
|
void Compositor::performCompositing()
|
|
{
|
|
if (!isOverlayWindowVisible())
|
|
return; // nothing is visible anyway
|
|
|
|
// Create a list of all windows in the stacking order
|
|
ToplevelList windows = Workspace::self()->xStackingOrder();
|
|
ToplevelList damaged;
|
|
|
|
// Reset the damage state of each window and fetch the damage region
|
|
// without waiting for a reply
|
|
foreach (Toplevel *win, windows) {
|
|
if (win->resetAndFetchDamage())
|
|
damaged << win;
|
|
}
|
|
|
|
if (damaged.count() > 0)
|
|
xcb_flush(connection());
|
|
|
|
// Move elevated windows to the top of the stacking order
|
|
foreach (EffectWindow *c, static_cast<EffectsHandlerImpl *>(effects)->elevatedWindows()) {
|
|
Toplevel* t = static_cast< EffectWindowImpl* >(c)->window();
|
|
windows.removeAll(t);
|
|
windows.append(t);
|
|
}
|
|
|
|
// Get the replies
|
|
foreach (Toplevel *win, damaged) {
|
|
// Discard the cached lanczos texture
|
|
if (win->effectWindow()) {
|
|
const QVariant texture = win->effectWindow()->data(LanczosCacheRole);
|
|
if (texture.isValid()) {
|
|
delete static_cast<GLTexture *>(texture.value<void*>());
|
|
win->effectWindow()->setData(LanczosCacheRole, QVariant());
|
|
}
|
|
}
|
|
|
|
win->getDamageRegionReply();
|
|
}
|
|
|
|
bool pending = !repaints_region.isEmpty() || windowRepaintsPending();
|
|
if (pending)
|
|
s_pendingFlushes = 3;
|
|
else if (m_scene->hasPendingFlush())
|
|
--s_pendingFlushes;
|
|
else
|
|
s_pendingFlushes = 0;
|
|
if (s_pendingFlushes < 1) {
|
|
s_pendingFlushes = 0;
|
|
m_scene->idle();
|
|
// Note: It would seem here we should undo suspended unredirect, but when scenes need
|
|
// it for some reason, e.g. transformations or translucency, the next pass that does not
|
|
// need this anymore and paints normally will also reset the suspended unredirect.
|
|
// Otherwise the window would not be painted normally anyway.
|
|
return;
|
|
}
|
|
|
|
// skip windows that are not yet ready for being painted
|
|
// TODO ?
|
|
// this cannot be used so carelessly - needs protections against broken clients, the window
|
|
// should not get focus before it's displayed, handle unredirected windows properly and so on.
|
|
foreach (Toplevel *t, windows)
|
|
if (!t->readyForPainting())
|
|
windows.removeAll(t);
|
|
|
|
QRegion repaints = repaints_region;
|
|
// clear all repaints, so that post-pass can add repaints for the next repaint
|
|
repaints_region = QRegion();
|
|
|
|
m_timeSinceLastVBlank = m_scene->paint(repaints, windows);
|
|
|
|
// Trigger at least one more pass even if there would be nothing to paint, so that scene->idle()
|
|
// is called the next time. If there would be nothing pending, it will not restart the timer and
|
|
// scheduleRepaint() would restart it again somewhen later, called from functions that
|
|
// would again add something pending.
|
|
scheduleRepaint();
|
|
}
|
|
|
|
void Compositor::performMousePoll()
|
|
{
|
|
Workspace::self()->checkCursorPos();
|
|
}
|
|
|
|
bool Compositor::windowRepaintsPending() const
|
|
{
|
|
foreach (Toplevel * c, Workspace::self()->clientList())
|
|
if (!c->repaints().isEmpty())
|
|
return true;
|
|
foreach (Toplevel * c, Workspace::self()->desktopList())
|
|
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 (!hasScene()) // should not really happen, but there may be e.g. some damage events still pending
|
|
return;
|
|
|
|
uint padding = m_timeSinceLastVBlank << 10;
|
|
|
|
if (m_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::isActive()
|
|
{
|
|
return !m_finishing && hasScene();
|
|
}
|
|
|
|
void Compositor::checkUnredirect()
|
|
{
|
|
checkUnredirect(false);
|
|
}
|
|
|
|
// force is needed when the list of windows changes (e.g. a window goes away)
|
|
void Compositor::checkUnredirect(bool force)
|
|
{
|
|
if (!hasScene() || m_scene->overlayWindow()->window() == None || !options->isUnredirectFullscreen())
|
|
return;
|
|
if (force)
|
|
forceUnredirectCheck = true;
|
|
if (!unredirectTimer.isActive())
|
|
unredirectTimer.start(0);
|
|
}
|
|
|
|
void Compositor::delayedCheckUnredirect()
|
|
{
|
|
if (!hasScene() || m_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();
|
|
}
|
|
m_scene->overlayWindow()->setShape(reg);
|
|
}
|
|
|
|
bool Compositor::checkForOverlayWindow(WId w) const
|
|
{
|
|
if (!hasScene()) {
|
|
// no scene, so it cannot be the overlay window
|
|
return false;
|
|
}
|
|
if (!m_scene->overlayWindow()) {
|
|
// no overlay window, it cannot be the overlay
|
|
return false;
|
|
}
|
|
// and compare the window ID's
|
|
return w == m_scene->overlayWindow()->window();
|
|
}
|
|
|
|
WId Compositor::overlayWindow() const
|
|
{
|
|
if (!hasScene()) {
|
|
return None;
|
|
}
|
|
if (!m_scene->overlayWindow()) {
|
|
return None;
|
|
}
|
|
return m_scene->overlayWindow()->window();
|
|
}
|
|
|
|
bool Compositor::isOverlayWindowVisible() const
|
|
{
|
|
if (!hasScene()) {
|
|
return false;
|
|
}
|
|
if (!m_scene->overlayWindow()) {
|
|
return false;
|
|
}
|
|
return m_scene->overlayWindow()->isVisible();
|
|
}
|
|
|
|
void Compositor::setOverlayWindowVisibility(bool visible)
|
|
{
|
|
if (hasScene() && m_scene->overlayWindow()) {
|
|
m_scene->overlayWindow()->setVisibility(visible);
|
|
}
|
|
}
|
|
|
|
void Compositor::restartKWin(const QString &reason)
|
|
{
|
|
kDebug(1212) << "restarting kwin for:" << reason;
|
|
char cmd[1024]; // copied from crashhandler - maybe not the best way to do?
|
|
sprintf(cmd, "%s --replace &", QFile::encodeName(QCoreApplication::applicationFilePath()).constData());
|
|
system(cmd);
|
|
}
|
|
|
|
bool Compositor::isCompositingPossible() const
|
|
{
|
|
return CompositingPrefs::compositingPossible();
|
|
}
|
|
|
|
QString Compositor::compositingNotPossibleReason() const
|
|
{
|
|
return CompositingPrefs::compositingNotPossibleReason();
|
|
}
|
|
|
|
bool Compositor::isOpenGLBroken() const
|
|
{
|
|
return CompositingPrefs::openGlIsBroken();
|
|
}
|
|
|
|
QString Compositor::compositingType() const
|
|
{
|
|
if (!hasScene()) {
|
|
return "none";
|
|
}
|
|
switch (m_scene->compositingType()) {
|
|
case XRenderCompositing:
|
|
return "xrender";
|
|
case OpenGL1Compositing:
|
|
return "gl1";
|
|
case OpenGL2Compositing:
|
|
#ifdef KWIN_HAVE_OPENGLES
|
|
return "gles";
|
|
#else
|
|
return "gl2";
|
|
#endif
|
|
case NoCompositing:
|
|
default:
|
|
return "none";
|
|
}
|
|
}
|
|
|
|
/*****************************************************
|
|
* Workspace
|
|
****************************************************/
|
|
|
|
bool Workspace::compositing() const
|
|
{
|
|
return m_compositor && m_compositor->hasScene();
|
|
}
|
|
|
|
//****************************************
|
|
// Toplevel
|
|
//****************************************
|
|
|
|
bool Toplevel::setupCompositing()
|
|
{
|
|
if (!compositing())
|
|
return false;
|
|
|
|
if (damage_handle != None)
|
|
return false;
|
|
|
|
damage_handle = xcb_generate_id(connection());
|
|
xcb_damage_create(connection(), damage_handle, frameId(), XCB_DAMAGE_REPORT_LEVEL_NON_EMPTY);
|
|
|
|
damage_region = QRegion(0, 0, width(), height());
|
|
effect_window = new EffectWindowImpl(this);
|
|
unredirect = false;
|
|
|
|
Compositor::self()->checkUnredirect(true);
|
|
Compositor::self()->scene()->windowAdded(this);
|
|
|
|
// With unmanaged windows there is a race condition between the client painting the window
|
|
// and us setting up damage tracking. If the client wins we won't get a damage event even
|
|
// though the window has been painted. To avoid this we mark the whole window as damaged
|
|
// and schedule a repaint immediately after creating the damage object.
|
|
if (dynamic_cast<Unmanaged*>(this))
|
|
addDamageFull();
|
|
|
|
return true;
|
|
}
|
|
|
|
void Toplevel::finishCompositing()
|
|
{
|
|
if (damage_handle == None)
|
|
return;
|
|
Compositor::self()->checkUnredirect(true);
|
|
if (effect_window->window() == this) { // otherwise it's already passed to Deleted, don't free data
|
|
discardWindowPixmap();
|
|
delete effect_window;
|
|
}
|
|
|
|
xcb_damage_destroy(connection(), damage_handle);
|
|
|
|
damage_handle = XCB_NONE;
|
|
damage_region = QRegion();
|
|
repaints_region = QRegion();
|
|
effect_window = NULL;
|
|
}
|
|
|
|
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()
|
|
{
|
|
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;
|
|
}
|
|
|
|
void Toplevel::damageNotifyEvent(XDamageNotifyEvent* e)
|
|
{
|
|
Q_UNUSED(e)
|
|
|
|
m_isDamaged = true;
|
|
|
|
// Note: The rect is supposed to specify the damage extents,
|
|
// but we dont't know it at this point. No one who connects
|
|
// to this signal uses the rect however.
|
|
emit damaged(this, QRect());
|
|
}
|
|
|
|
bool Toplevel::compositing() const
|
|
{
|
|
Compositor *c = Compositor::self();
|
|
return c && c->hasScene();
|
|
}
|
|
|
|
void Client::damageNotifyEvent(XDamageNotifyEvent* e)
|
|
{
|
|
#ifdef HAVE_XSYNC
|
|
if (syncRequest.isPending && isResize()) {
|
|
emit damaged(this, QRect());
|
|
m_isDamaged = true;
|
|
return;
|
|
}
|
|
|
|
if (!ready_for_painting) { // avoid "setReadyForPainting()" function calling overhead
|
|
if (syncRequest.counter == None) // cannot detect complete redraw, consider done now
|
|
setReadyForPainting();
|
|
}
|
|
#else
|
|
if (!ready_for_painting)
|
|
setReadyForPainting();
|
|
#endif
|
|
|
|
Toplevel::damageNotifyEvent(e);
|
|
}
|
|
|
|
bool Toplevel::resetAndFetchDamage()
|
|
{
|
|
if (!m_isDamaged)
|
|
return false;
|
|
|
|
xcb_connection_t *conn = connection();
|
|
|
|
// Create a new region and copy the damage region to it,
|
|
// resetting the damaged state.
|
|
xcb_xfixes_region_t region = xcb_generate_id(conn);
|
|
xcb_xfixes_create_region(conn, region, 0, 0);
|
|
xcb_damage_subtract(conn, damage_handle, 0, region);
|
|
|
|
// Send a fetch-region request and destroy the region
|
|
m_regionCookie = xcb_xfixes_fetch_region_unchecked(conn, region);
|
|
xcb_xfixes_destroy_region(conn, region);
|
|
|
|
m_isDamaged = false;
|
|
m_damageReplyPending = true;
|
|
|
|
return m_damageReplyPending;
|
|
}
|
|
|
|
void Toplevel::getDamageRegionReply()
|
|
{
|
|
if (!m_damageReplyPending)
|
|
return;
|
|
|
|
m_damageReplyPending = false;
|
|
|
|
// Get the fetch-region reply
|
|
xcb_xfixes_fetch_region_reply_t *reply =
|
|
xcb_xfixes_fetch_region_reply(connection(), m_regionCookie, 0);
|
|
|
|
if (!reply)
|
|
return;
|
|
|
|
// Convert the reply to a QRegion
|
|
int count = xcb_xfixes_fetch_region_rectangles_length(reply);
|
|
QRegion region;
|
|
|
|
if (count > 1 && count < 16) {
|
|
xcb_rectangle_t *rects = xcb_xfixes_fetch_region_rectangles(reply);
|
|
|
|
QVector<QRect> qrects;
|
|
qrects.reserve(count);
|
|
|
|
for (int i = 0; i < count; i++)
|
|
qrects << QRect(rects[i].x, rects[i].y, rects[i].width, rects[i].height);
|
|
|
|
region.setRects(qrects.constData(), count);
|
|
} else
|
|
region += QRect(reply->extents.x, reply->extents.y,
|
|
reply->extents.width, reply->extents.height);
|
|
|
|
damage_region += region;
|
|
repaints_region += region;
|
|
|
|
free(reply);
|
|
}
|
|
|
|
void Toplevel::addDamageFull()
|
|
{
|
|
if (!compositing())
|
|
return;
|
|
|
|
damage_region = rect();
|
|
repaints_region = rect();
|
|
|
|
emit damaged(this, rect());
|
|
}
|
|
|
|
void Toplevel::resetDamage(const QRect& r)
|
|
{
|
|
damage_region -= r;
|
|
int damageArea = 0;
|
|
foreach (const QRect &r2, damage_region.rects())
|
|
damageArea += r2.width()*r2.height();
|
|
}
|
|
|
|
void Toplevel::addRepaint(const QRect& r)
|
|
{
|
|
if (!compositing()) {
|
|
return;
|
|
}
|
|
repaints_region += r;
|
|
emit needsRepaint();
|
|
}
|
|
|
|
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;
|
|
emit needsRepaint();
|
|
}
|
|
|
|
void Toplevel::addLayerRepaint(const QRect& r)
|
|
{
|
|
if (!compositing()) {
|
|
return;
|
|
}
|
|
layer_repaints_region += r;
|
|
emit needsRepaint();
|
|
}
|
|
|
|
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;
|
|
emit needsRepaint();
|
|
}
|
|
|
|
void Toplevel::addRepaintFull()
|
|
{
|
|
repaints_region = visibleRect().translated(-pos());
|
|
emit needsRepaint();
|
|
}
|
|
|
|
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;
|
|
Compositor::self()->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;
|
|
Compositor::self()->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
|