895 lines
27 KiB
C++
895 lines
27 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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SPDX-FileCopyrightText: 2006 Lubos Lunak <l.lunak@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "composite.h"
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#include "abstract_output.h"
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#include "dbusinterface.h"
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#include "x11client.h"
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#include "decorations/decoratedclient.h"
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#include "deleted.h"
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#include "effects.h"
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#include "ftrace.h"
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#include "internal_client.h"
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#include "overlaywindow.h"
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#include "platform.h"
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#include "renderloop.h"
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#include "scene.h"
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#include "screens.h"
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#include "shadow.h"
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#include "unmanaged.h"
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#include "useractions.h"
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#include "utils.h"
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#include "wayland_server.h"
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#include "workspace.h"
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#include "xcbutils.h"
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#include <kwingltexture.h>
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#include <KWaylandServer/surface_interface.h>
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#include <KGlobalAccel>
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#include <KLocalizedString>
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#include <KPluginLoader>
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#include <KPluginMetaData>
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#include <KNotification>
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#include <KSelectionOwner>
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#include <QDateTime>
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#include <QFutureWatcher>
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#include <QMenu>
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#include <QOpenGLContext>
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#include <QQuickWindow>
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#include <QtConcurrentRun>
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#include <QTextStream>
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#include <QTimerEvent>
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#include <xcb/composite.h>
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#include <xcb/damage.h>
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#include <cstdio>
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Q_DECLARE_METATYPE(KWin::X11Compositor::SuspendReason)
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namespace KWin
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{
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// See main.cpp:
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extern int screen_number;
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extern bool is_multihead;
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Compositor *Compositor::s_compositor = nullptr;
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Compositor *Compositor::self()
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{
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return s_compositor;
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}
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WaylandCompositor *WaylandCompositor::create(QObject *parent)
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{
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Q_ASSERT(!s_compositor);
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auto *compositor = new WaylandCompositor(parent);
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s_compositor = compositor;
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return compositor;
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}
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X11Compositor *X11Compositor::create(QObject *parent)
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{
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Q_ASSERT(!s_compositor);
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auto *compositor = new X11Compositor(parent);
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s_compositor = compositor;
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return compositor;
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}
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class CompositorSelectionOwner : public KSelectionOwner
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{
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Q_OBJECT
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public:
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CompositorSelectionOwner(const char *selection)
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: KSelectionOwner(selection, connection(), rootWindow())
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, m_owning(false)
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{
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connect (this, &CompositorSelectionOwner::lostOwnership,
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this, [this]() { m_owning = false; });
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}
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bool owning() const {
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return m_owning;
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}
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void setOwning(bool own) {
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m_owning = own;
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}
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private:
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bool m_owning;
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};
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Compositor::Compositor(QObject* workspace)
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: QObject(workspace)
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, m_state(State::Off)
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, m_selectionOwner(nullptr)
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, m_scene(nullptr)
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{
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connect(options, &Options::configChanged, this, &Compositor::configChanged);
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connect(options, &Options::animationSpeedChanged, this, &Compositor::configChanged);
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// 2 sec which should be enough to restart the compositor.
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static const int compositorLostMessageDelay = 2000;
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m_releaseSelectionTimer.setSingleShot(true);
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m_releaseSelectionTimer.setInterval(compositorLostMessageDelay);
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connect(&m_releaseSelectionTimer, &QTimer::timeout,
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this, &Compositor::releaseCompositorSelection);
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m_unusedSupportPropertyTimer.setInterval(compositorLostMessageDelay);
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m_unusedSupportPropertyTimer.setSingleShot(true);
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connect(&m_unusedSupportPropertyTimer, &QTimer::timeout,
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this, &Compositor::deleteUnusedSupportProperties);
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// Delay the call to start 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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if (kwinApp()->platform()->isReady()) {
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QTimer::singleShot(0, this, &Compositor::start);
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}
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connect(kwinApp()->platform(), &Platform::readyChanged, this,
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[this] (bool ready) {
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if (ready) {
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start();
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} else {
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stop();
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}
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}, Qt::QueuedConnection
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);
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if (qEnvironmentVariableIsSet("KWIN_MAX_FRAMES_TESTED"))
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m_framesToTestForSafety = qEnvironmentVariableIntValue("KWIN_MAX_FRAMES_TESTED");
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// register DBus
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new CompositorDBusInterface(this);
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FTraceLogger::create();
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}
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Compositor::~Compositor()
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{
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emit aboutToDestroy();
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stop();
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deleteUnusedSupportProperties();
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destroyCompositorSelection();
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s_compositor = nullptr;
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}
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bool Compositor::setupStart()
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{
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if (kwinApp()->isTerminating()) {
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// Don't start while KWin is terminating. An event to restart might be lingering
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// in the event queue due to graphics reset.
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return false;
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}
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if (m_state != State::Off) {
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return false;
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}
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m_state = State::Starting;
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options->reloadCompositingSettings(true);
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initializeX11();
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// There might still be a deleted around, needs to be cleared before
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// creating the scene (BUG 333275).
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if (Workspace::self()) {
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while (!Workspace::self()->deletedList().isEmpty()) {
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Workspace::self()->deletedList().first()->discard();
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}
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}
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emit aboutToToggleCompositing();
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auto supportedCompositors = kwinApp()->platform()->supportedCompositors();
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const auto userConfigIt = std::find(supportedCompositors.begin(), supportedCompositors.end(),
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options->compositingMode());
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if (userConfigIt != supportedCompositors.end()) {
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supportedCompositors.erase(userConfigIt);
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supportedCompositors.prepend(options->compositingMode());
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} else {
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qCWarning(KWIN_CORE)
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<< "Configured compositor not supported by Platform. Falling back to defaults";
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}
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const auto availablePlugins = KPluginLoader::findPlugins(QStringLiteral("org.kde.kwin.scenes"));
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for (const KPluginMetaData &pluginMetaData : availablePlugins) {
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qCDebug(KWIN_CORE) << "Available scene plugin:" << pluginMetaData.fileName();
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}
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for (auto type : qAsConst(supportedCompositors)) {
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switch (type) {
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case XRenderCompositing:
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qCDebug(KWIN_CORE) << "Attempting to load the XRender scene";
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break;
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case OpenGLCompositing:
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case OpenGL2Compositing:
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qCDebug(KWIN_CORE) << "Attempting to load the OpenGL scene";
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break;
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case QPainterCompositing:
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qCDebug(KWIN_CORE) << "Attempting to load the QPainter scene";
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break;
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case NoCompositing:
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Q_UNREACHABLE();
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}
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const auto pluginIt = std::find_if(availablePlugins.begin(), availablePlugins.end(),
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[type] (const auto &plugin) {
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const auto &metaData = plugin.rawData();
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auto it = metaData.find(QStringLiteral("CompositingType"));
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if (it != metaData.end()) {
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if ((*it).toInt() == int{type}) {
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return true;
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}
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}
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return false;
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});
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if (pluginIt != availablePlugins.end()) {
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std::unique_ptr<SceneFactory>
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factory{ qobject_cast<SceneFactory*>(pluginIt->instantiate()) };
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if (factory) {
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m_scene = factory->create(this);
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if (m_scene) {
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if (!m_scene->initFailed()) {
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qCDebug(KWIN_CORE) << "Instantiated compositing plugin:"
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<< pluginIt->name();
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break;
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} else {
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delete m_scene;
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m_scene = nullptr;
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}
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}
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}
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}
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}
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if (m_scene == nullptr || m_scene->initFailed()) {
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qCCritical(KWIN_CORE) << "Failed to initialize compositing, compositing disabled";
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m_state = State::Off;
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delete m_scene;
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m_scene = nullptr;
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if (m_selectionOwner) {
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m_selectionOwner->setOwning(false);
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m_selectionOwner->release();
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}
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if (!supportedCompositors.contains(NoCompositing)) {
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qCCritical(KWIN_CORE) << "The used windowing system requires compositing";
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qCCritical(KWIN_CORE) << "We are going to quit KWin now as it is broken";
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qApp->quit();
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}
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return false;
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}
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CompositingType compositingType = m_scene->compositingType();
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if (compositingType & OpenGLCompositing) {
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// Override for OpenGl sub-type OpenGL2Compositing.
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compositingType = OpenGLCompositing;
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}
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kwinApp()->platform()->setSelectedCompositor(compositingType);
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if (!Workspace::self() && m_scene && m_scene->compositingType() == QPainterCompositing) {
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// Force Software QtQuick on first startup with QPainter.
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QQuickWindow::setSceneGraphBackend(QSGRendererInterface::Software);
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}
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connect(m_scene, &Scene::resetCompositing, this, &Compositor::reinitialize);
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emit sceneCreated();
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return true;
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}
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void Compositor::initializeX11()
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{
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xcb_connection_t *connection = kwinApp()->x11Connection();
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if (!connection) {
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return;
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}
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if (!m_selectionOwner) {
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char selection_name[ 100 ];
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sprintf(selection_name, "_NET_WM_CM_S%d", Application::x11ScreenNumber());
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m_selectionOwner = new CompositorSelectionOwner(selection_name);
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connect(m_selectionOwner, &CompositorSelectionOwner::lostOwnership,
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this, &Compositor::stop);
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}
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if (!m_selectionOwner->owning()) {
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// Force claim ownership.
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m_selectionOwner->claim(true);
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m_selectionOwner->setOwning(true);
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}
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xcb_composite_redirect_subwindows(connection, kwinApp()->x11RootWindow(),
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XCB_COMPOSITE_REDIRECT_MANUAL);
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}
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void Compositor::cleanupX11()
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{
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delete m_selectionOwner;
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m_selectionOwner = nullptr;
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}
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void Compositor::startupWithWorkspace()
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{
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connect(kwinApp(), &Application::x11ConnectionChanged,
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this, &Compositor::initializeX11, Qt::UniqueConnection);
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connect(kwinApp(), &Application::x11ConnectionAboutToBeDestroyed,
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this, &Compositor::cleanupX11, Qt::UniqueConnection);
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initializeX11();
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Workspace::self()->markXStackingOrderAsDirty();
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Q_ASSERT(m_scene);
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const Platform *platform = kwinApp()->platform();
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if (platform->isPerScreenRenderingEnabled()) {
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const QVector<AbstractOutput *> outputs = platform->enabledOutputs();
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for (AbstractOutput *output : outputs) {
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registerRenderLoop(output->renderLoop(), output);
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}
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connect(platform, &Platform::outputEnabled,
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this, &Compositor::handleOutputEnabled);
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connect(platform, &Platform::outputDisabled,
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this, &Compositor::handleOutputDisabled);
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} else {
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registerRenderLoop(platform->renderLoop(), nullptr);
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}
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// Sets also the 'effects' pointer.
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kwinApp()->platform()->createEffectsHandler(this, m_scene);
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connect(Workspace::self(), &Workspace::deletedRemoved, m_scene, &Scene::removeToplevel);
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connect(effects, &EffectsHandler::screenGeometryChanged, this, &Compositor::addRepaintFull);
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for (X11Client *c : Workspace::self()->clientList()) {
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c->setupCompositing();
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c->updateShadow();
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}
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for (Unmanaged *c : Workspace::self()->unmanagedList()) {
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c->setupCompositing();
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c->updateShadow();
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}
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for (InternalClient *client : workspace()->internalClients()) {
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client->setupCompositing();
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client->updateShadow();
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}
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if (auto *server = waylandServer()) {
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const auto clients = server->clients();
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for (AbstractClient *c : clients) {
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c->setupCompositing();
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c->updateShadow();
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}
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}
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m_state = State::On;
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emit compositingToggled(true);
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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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addRepaintFull();
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}
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void Compositor::registerRenderLoop(RenderLoop *renderLoop, AbstractOutput *output)
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{
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Q_ASSERT(!m_renderLoops.contains(renderLoop));
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m_renderLoops.insert(renderLoop, output);
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connect(renderLoop, &RenderLoop::frameRequested, this, &Compositor::handleFrameRequested);
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}
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void Compositor::unregisterRenderLoop(RenderLoop *renderLoop)
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{
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Q_ASSERT(m_renderLoops.contains(renderLoop));
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m_renderLoops.remove(renderLoop);
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disconnect(renderLoop, &RenderLoop::frameRequested, this, &Compositor::handleFrameRequested);
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}
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void Compositor::handleOutputEnabled(AbstractOutput *output)
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{
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registerRenderLoop(output->renderLoop(), output);
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}
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void Compositor::handleOutputDisabled(AbstractOutput *output)
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{
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unregisterRenderLoop(output->renderLoop());
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}
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int Compositor::screenForRenderLoop(RenderLoop *renderLoop) const
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{
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Q_ASSERT(m_renderLoops.contains(renderLoop));
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AbstractOutput *output = m_renderLoops.value(renderLoop);
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if (!output) {
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return -1;
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}
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return kwinApp()->platform()->enabledOutputs().indexOf(output);
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}
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void Compositor::scheduleRepaint()
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{
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for (auto it = m_renderLoops.constBegin(); it != m_renderLoops.constEnd(); ++it) {
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it.key()->scheduleRepaint();
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}
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}
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void Compositor::stop()
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{
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if (m_state == State::Off || m_state == State::Stopping) {
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return;
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}
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m_state = State::Stopping;
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emit aboutToToggleCompositing();
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m_releaseSelectionTimer.start();
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// Some effects might need access to effect windows when they are about to
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// be destroyed, for example to unreference deleted windows, so we have to
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// make sure that effect windows outlive effects.
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delete effects;
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effects = nullptr;
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if (Workspace::self()) {
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for (X11Client *c : Workspace::self()->clientList()) {
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m_scene->removeToplevel(c);
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}
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for (Unmanaged *c : Workspace::self()->unmanagedList()) {
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m_scene->removeToplevel(c);
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}
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for (InternalClient *client : workspace()->internalClients()) {
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m_scene->removeToplevel(client);
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}
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for (X11Client *c : Workspace::self()->clientList()) {
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c->finishCompositing();
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}
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for (Unmanaged *c : Workspace::self()->unmanagedList()) {
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c->finishCompositing();
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}
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for (InternalClient *client : workspace()->internalClients()) {
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client->finishCompositing();
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}
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if (auto *con = kwinApp()->x11Connection()) {
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xcb_composite_unredirect_subwindows(con, kwinApp()->x11RootWindow(),
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XCB_COMPOSITE_REDIRECT_MANUAL);
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}
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while (!workspace()->deletedList().isEmpty()) {
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workspace()->deletedList().first()->discard();
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}
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}
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if (waylandServer()) {
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for (AbstractClient *c : waylandServer()->clients()) {
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m_scene->removeToplevel(c);
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}
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for (AbstractClient *c : waylandServer()->clients()) {
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c->finishCompositing();
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}
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}
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while (!m_renderLoops.isEmpty()) {
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unregisterRenderLoop(m_renderLoops.firstKey());
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}
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disconnect(kwinApp()->platform(), &Platform::outputEnabled,
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this, &Compositor::handleOutputEnabled);
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disconnect(kwinApp()->platform(), &Platform::outputDisabled,
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this, &Compositor::handleOutputDisabled);
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delete m_scene;
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m_scene = nullptr;
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m_state = State::Off;
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emit compositingToggled(false);
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}
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void Compositor::destroyCompositorSelection()
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{
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delete m_selectionOwner;
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m_selectionOwner = nullptr;
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}
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void Compositor::releaseCompositorSelection()
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{
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switch (m_state) {
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case State::On:
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// We are compositing at the moment. Don't release.
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break;
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case State::Off:
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if (m_selectionOwner) {
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qCDebug(KWIN_CORE) << "Releasing compositor selection";
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m_selectionOwner->setOwning(false);
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m_selectionOwner->release();
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}
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break;
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case State::Starting:
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case State::Stopping:
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// Still starting or shutting down the compositor. Starting might fail
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// or after stopping a restart might follow. So test again later on.
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m_releaseSelectionTimer.start();
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break;
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}
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}
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void Compositor::keepSupportProperty(xcb_atom_t atom)
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{
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m_unusedSupportProperties.removeAll(atom);
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}
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void Compositor::removeSupportProperty(xcb_atom_t atom)
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{
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m_unusedSupportProperties << atom;
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m_unusedSupportPropertyTimer.start();
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}
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void Compositor::deleteUnusedSupportProperties()
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{
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if (m_state == State::Starting || m_state == State::Stopping) {
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// Currently still maybe restarting the compositor.
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m_unusedSupportPropertyTimer.start();
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return;
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}
|
|
if (auto *con = kwinApp()->x11Connection()) {
|
|
for (const xcb_atom_t &atom : qAsConst(m_unusedSupportProperties)) {
|
|
// remove property from root window
|
|
xcb_delete_property(con, kwinApp()->x11RootWindow(), atom);
|
|
}
|
|
m_unusedSupportProperties.clear();
|
|
}
|
|
}
|
|
|
|
void Compositor::configChanged()
|
|
{
|
|
reinitialize();
|
|
addRepaintFull();
|
|
}
|
|
|
|
void Compositor::reinitialize()
|
|
{
|
|
// Reparse config. Config options will be reloaded by start()
|
|
kwinApp()->config()->reparseConfiguration();
|
|
|
|
// Restart compositing
|
|
stop();
|
|
start();
|
|
|
|
if (effects) { // start() may fail
|
|
effects->reconfigure();
|
|
}
|
|
}
|
|
|
|
void Compositor::addRepaint(int x, int y, int width, int height)
|
|
{
|
|
addRepaint(QRegion(x, y, width, height));
|
|
}
|
|
|
|
void Compositor::addRepaint(const QRect &rect)
|
|
{
|
|
addRepaint(QRegion(rect));
|
|
}
|
|
|
|
void Compositor::addRepaint(const QRegion ®ion)
|
|
{
|
|
if (m_scene) {
|
|
m_scene->addRepaint(region);
|
|
}
|
|
}
|
|
|
|
void Compositor::addRepaintFull()
|
|
{
|
|
addRepaint(screens()->geometry());
|
|
}
|
|
|
|
void Compositor::handleFrameRequested(RenderLoop *renderLoop)
|
|
{
|
|
// If outputs are disabled, we return to the event loop and
|
|
// continue processing events until the outputs are enabled again
|
|
if (!kwinApp()->platform()->areOutputsEnabled()) {
|
|
return;
|
|
}
|
|
|
|
const int screenId = screenForRenderLoop(renderLoop);
|
|
|
|
fTraceDuration("Paint (", screens()->name(screenId), ")");
|
|
|
|
// Create a list of all windows in the stacking order
|
|
QList<Toplevel *> windows = Workspace::self()->xStackingOrder();
|
|
QList<Toplevel *> damaged;
|
|
|
|
// Reset the damage state of each window and fetch the damage region
|
|
// without waiting for a reply
|
|
for (Toplevel *win : qAsConst(windows)) {
|
|
if (win->resetAndFetchDamage()) {
|
|
damaged << win;
|
|
}
|
|
}
|
|
|
|
if (damaged.count() > 0) {
|
|
m_scene->triggerFence();
|
|
if (auto c = kwinApp()->x11Connection()) {
|
|
xcb_flush(c);
|
|
}
|
|
}
|
|
|
|
// Move elevated windows to the top of the stacking order
|
|
for (EffectWindow *c : static_cast<EffectsHandlerImpl *>(effects)->elevatedWindows()) {
|
|
Toplevel *t = static_cast<EffectWindowImpl *>(c)->window();
|
|
windows.removeAll(t);
|
|
windows.append(t);
|
|
}
|
|
|
|
// Get the replies
|
|
for (Toplevel *win : qAsConst(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();
|
|
}
|
|
|
|
// Skip windows that are not yet ready for being painted and if screen is locked skip windows
|
|
// that are neither lockscreen nor inputmethod windows.
|
|
//
|
|
// 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.
|
|
for (Toplevel *win : windows) {
|
|
if (!win->readyForPainting()) {
|
|
windows.removeAll(win);
|
|
}
|
|
if (waylandServer() && waylandServer()->isScreenLocked()) {
|
|
if(!win->isLockScreen() && !win->isInputMethod()) {
|
|
windows.removeAll(win);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (m_framesToTestForSafety > 0 && (m_scene->compositingType() & OpenGLCompositing)) {
|
|
kwinApp()->platform()->createOpenGLSafePoint(Platform::OpenGLSafePoint::PreFrame);
|
|
}
|
|
|
|
const QRegion repaints = m_scene->repaints(screenId);
|
|
m_scene->resetRepaints(screenId);
|
|
|
|
m_scene->paint(screenId, repaints, windows, renderLoop);
|
|
|
|
if (m_framesToTestForSafety > 0) {
|
|
if (m_scene->compositingType() & OpenGLCompositing) {
|
|
kwinApp()->platform()->createOpenGLSafePoint(Platform::OpenGLSafePoint::PostFrame);
|
|
}
|
|
m_framesToTestForSafety--;
|
|
if (m_framesToTestForSafety == 0 && (m_scene->compositingType() & OpenGLCompositing)) {
|
|
kwinApp()->platform()->createOpenGLSafePoint(
|
|
Platform::OpenGLSafePoint::PostLastGuardedFrame);
|
|
}
|
|
}
|
|
|
|
if (waylandServer()) {
|
|
const std::chrono::milliseconds frameTime =
|
|
std::chrono::duration_cast<std::chrono::milliseconds>(renderLoop->lastPresentationTimestamp());
|
|
|
|
for (Toplevel *window : qAsConst(windows)) {
|
|
if (!window->readyForPainting()) {
|
|
continue;
|
|
}
|
|
if (waylandServer()->isScreenLocked() &&
|
|
!(window->isLockScreen() || window->isInputMethod())) {
|
|
continue;
|
|
}
|
|
if (!window->isOnScreen(screenId)) {
|
|
continue;
|
|
}
|
|
if (auto surface = window->surface()) {
|
|
surface->frameRendered(frameTime.count());
|
|
}
|
|
}
|
|
if (!kwinApp()->platform()->isCursorHidden()) {
|
|
Cursors::self()->currentCursor()->markAsRendered();
|
|
}
|
|
}
|
|
}
|
|
|
|
bool Compositor::isActive()
|
|
{
|
|
return m_state == State::On;
|
|
}
|
|
|
|
WaylandCompositor::WaylandCompositor(QObject *parent)
|
|
: Compositor(parent)
|
|
{
|
|
connect(kwinApp(), &Application::x11ConnectionAboutToBeDestroyed,
|
|
this, &WaylandCompositor::destroyCompositorSelection);
|
|
}
|
|
|
|
void WaylandCompositor::toggleCompositing()
|
|
{
|
|
// For the shortcut. Not possible on Wayland because we always composite.
|
|
}
|
|
|
|
void WaylandCompositor::start()
|
|
{
|
|
if (!Compositor::setupStart()) {
|
|
// Internal setup failed, abort.
|
|
return;
|
|
}
|
|
|
|
if (Workspace::self()) {
|
|
startupWithWorkspace();
|
|
} else {
|
|
connect(kwinApp(), &Application::workspaceCreated,
|
|
this, &WaylandCompositor::startupWithWorkspace);
|
|
}
|
|
}
|
|
|
|
X11Compositor::X11Compositor(QObject *parent)
|
|
: Compositor(parent)
|
|
, m_suspended(options->isUseCompositing() ? NoReasonSuspend : UserSuspend)
|
|
{
|
|
}
|
|
|
|
void X11Compositor::toggleCompositing()
|
|
{
|
|
if (m_suspended) {
|
|
// Direct user call; clear all bits.
|
|
resume(AllReasonSuspend);
|
|
} else {
|
|
// But only set the user one (sufficient to suspend).
|
|
suspend(UserSuspend);
|
|
}
|
|
}
|
|
|
|
void X11Compositor::reinitialize()
|
|
{
|
|
// Resume compositing if suspended.
|
|
m_suspended = NoReasonSuspend;
|
|
Compositor::reinitialize();
|
|
}
|
|
|
|
void X11Compositor::configChanged()
|
|
{
|
|
if (m_suspended) {
|
|
stop();
|
|
return;
|
|
}
|
|
Compositor::configChanged();
|
|
}
|
|
|
|
void X11Compositor::suspend(X11Compositor::SuspendReason reason)
|
|
{
|
|
Q_ASSERT(reason != NoReasonSuspend);
|
|
m_suspended |= reason;
|
|
|
|
if (reason & ScriptSuspend) {
|
|
// When disabled show a shortcut how the user can get back compositing.
|
|
const auto shortcuts = KGlobalAccel::self()->shortcut(
|
|
workspace()->findChild<QAction*>(QStringLiteral("Suspend Compositing")));
|
|
if (!shortcuts.isEmpty()) {
|
|
// Display notification only if there is the shortcut.
|
|
const QString message =
|
|
i18n("Desktop effects have been suspended by another application.<br/>"
|
|
"You can resume using the '%1' shortcut.",
|
|
shortcuts.first().toString(QKeySequence::NativeText));
|
|
KNotification::event(QStringLiteral("compositingsuspendeddbus"), message);
|
|
}
|
|
}
|
|
stop();
|
|
}
|
|
|
|
void X11Compositor::resume(X11Compositor::SuspendReason reason)
|
|
{
|
|
Q_ASSERT(reason != NoReasonSuspend);
|
|
m_suspended &= ~reason;
|
|
start();
|
|
}
|
|
|
|
void X11Compositor::start()
|
|
{
|
|
if (m_suspended) {
|
|
QStringList reasons;
|
|
if (m_suspended & UserSuspend) {
|
|
reasons << QStringLiteral("Disabled by User");
|
|
}
|
|
if (m_suspended & BlockRuleSuspend) {
|
|
reasons << QStringLiteral("Disabled by Window");
|
|
}
|
|
if (m_suspended & ScriptSuspend) {
|
|
reasons << QStringLiteral("Disabled by Script");
|
|
}
|
|
qCDebug(KWIN_CORE) << "Compositing is suspended, reason:" << reasons;
|
|
return;
|
|
} else if (!kwinApp()->platform()->compositingPossible()) {
|
|
qCCritical(KWIN_CORE) << "Compositing is not possible";
|
|
return;
|
|
}
|
|
if (!Compositor::setupStart()) {
|
|
// Internal setup failed, abort.
|
|
return;
|
|
}
|
|
startupWithWorkspace();
|
|
}
|
|
void X11Compositor::handleFrameRequested(RenderLoop *renderLoop)
|
|
{
|
|
if (scene()->overlayWindow() && !isOverlayWindowVisible()) {
|
|
// Return since nothing is visible.
|
|
return;
|
|
}
|
|
Compositor::handleFrameRequested(renderLoop);
|
|
}
|
|
|
|
bool X11Compositor::checkForOverlayWindow(WId w) const
|
|
{
|
|
if (!scene()) {
|
|
// No scene, so it cannot be the overlay window.
|
|
return false;
|
|
}
|
|
if (!scene()->overlayWindow()) {
|
|
// No overlay window, it cannot be the overlay.
|
|
return false;
|
|
}
|
|
// Compare the window ID's.
|
|
return w == scene()->overlayWindow()->window();
|
|
}
|
|
|
|
bool X11Compositor::isOverlayWindowVisible() const
|
|
{
|
|
if (!scene()) {
|
|
return false;
|
|
}
|
|
if (!scene()->overlayWindow()) {
|
|
return false;
|
|
}
|
|
return scene()->overlayWindow()->isVisible();
|
|
}
|
|
|
|
void X11Compositor::updateClientCompositeBlocking(X11Client *c)
|
|
{
|
|
if (c) {
|
|
if (c->isBlockingCompositing()) {
|
|
// Do NOT attempt to call suspend(true) from within the eventchain!
|
|
if (!(m_suspended & BlockRuleSuspend))
|
|
QMetaObject::invokeMethod(this, [this]() {
|
|
suspend(BlockRuleSuspend);
|
|
}, Qt::QueuedConnection);
|
|
}
|
|
}
|
|
else if (m_suspended & BlockRuleSuspend) {
|
|
// If !c we just check if we can resume in case a blocking client was lost.
|
|
bool shouldResume = true;
|
|
|
|
for (auto it = Workspace::self()->clientList().constBegin();
|
|
it != Workspace::self()->clientList().constEnd(); ++it) {
|
|
if ((*it)->isBlockingCompositing()) {
|
|
shouldResume = false;
|
|
break;
|
|
}
|
|
}
|
|
if (shouldResume) {
|
|
// Do NOT attempt to call suspend(false) from within the eventchain!
|
|
QMetaObject::invokeMethod(this, [this]() {
|
|
resume(BlockRuleSuspend);
|
|
}, Qt::QueuedConnection);
|
|
}
|
|
}
|
|
}
|
|
|
|
X11Compositor *X11Compositor::self()
|
|
{
|
|
return qobject_cast<X11Compositor *>(Compositor::self());
|
|
}
|
|
|
|
}
|
|
|
|
// included for CompositorSelectionOwner
|
|
#include "composite.moc"
|