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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKTHREADEDWINDOWMANAGER_P_H
#define QQUICKTHREADEDWINDOWMANAGER_P_H
#include "qquickwindowmanager_p.h"
#include <QtCore/QCoreApplication>
#include <QtCore/QMutex>
#include <QtCore/QWaitCondition>
#include <QtCore/private/qabstractanimation_p.h>
#include <QtGui/QOpenGLContext>
#include <QtQuick/private/qsgcontext_p.h>
#include <private/qtquickglobal_p.h>
QT_BEGIN_NAMESPACE
class QQuickRenderThreadSingleContextWindowManager : public QThread, public QQuickWindowManager
{
Q_OBJECT
public:
QQuickRenderThreadSingleContextWindowManager()
: sg(QSGContext::createDefaultContext())
, gl(0)
, animationTimer(-1)
, isGuiLocked(0)
, animationRunning(false)
, isPostingSyncEvent(false)
, isRenderBlocked(false)
, isExternalUpdatePending(false)
, syncAlreadyHappened(false)
, inSync(false)
, shouldExit(false)
, hasExited(false)
, isDeferredUpdatePosted(false)
, windowToGrab(0)
{
sg->moveToThread(this);
animDriver = sg->createAnimationDriver(this);
animDriver->install();
connect(animDriver, SIGNAL(started()), this, SLOT(animationStarted()));
connect(animDriver, SIGNAL(stopped()), this, SLOT(animationStopped()));
}
QSGContext *sceneGraphContext() const { return sg; }
void releaseResources() { }
void show(QQuickWindow *window);
void hide(QQuickWindow *window);
void windowDestroyed(QQuickWindow *window);
void exposureChanged(QQuickWindow *window);
QImage grab(QQuickWindow *window);
void resize(QQuickWindow *window, const QSize &size);
void handleDeferredUpdate();
void maybeUpdate(QQuickWindow *window);
void update(QQuickWindow *window) { maybeUpdate(window); } // identical for this implementation
void startRendering();
void stopRendering();
void exhaustSyncEvent();
void sync(bool guiAlreadyLocked);
void initialize();
bool event(QEvent *);
inline void lock() { mutex.lock(); }
inline void unlock() { mutex.unlock(); }
inline void wait() { condition.wait(&mutex); }
inline void wake() { condition.wakeOne(); }
void lockInGui();
void unlockInGui();
void run();
QAnimationDriver *animationDriver() const { return animDriver; }
public slots:
void animationStarted();
void animationStopped();
void windowVisibilityChanged();
private:
void handleAddedWindows();
void handleAddedWindow(QQuickWindow *window);
void handleRemovedWindows(bool clearGLContext = true);
QSGContext *sg;
QOpenGLContext *gl;
QAnimationDriver *animDriver;
int animationTimer;
QMutex mutex;
QWaitCondition condition;
int isGuiLocked;
uint animationRunning: 1;
uint isPostingSyncEvent : 1;
uint isRenderBlocked : 1;
uint isExternalUpdatePending : 1;
uint syncAlreadyHappened : 1;
uint inSync : 1;
uint shouldExit : 1;
uint hasExited : 1;
uint isDeferredUpdatePosted : 1;
QQuickWindow *windowToGrab;
QImage grabContent;
struct WindowData {
QSize renderedSize;
QSize windowSize;
QSize viewportSize;
uint sizeWasChanged : 1;
uint isVisible : 1;
uint isRenderable : 1;
};
QHash<QQuickWindow *, WindowData *> m_rendered_windows;
struct WindowTracker {
QQuickWindow *window;
uint isVisible : 1;
uint toBeRemoved : 1;
};
QList<WindowTracker> m_tracked_windows;
QList<QQuickWindow *> m_removed_windows;
QList<QQuickWindow *> m_added_windows;
};
QT_END_NAMESPACE
#endif // QQUICKTHREADEDWINDOWMANAGER_P_H
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