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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSGRenderLoop_P_H
#define QSGRenderLoop_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/QImage>
#include <QtGui/QSurface>
#include <private/qtquickglobal_p.h>
#include <QtCore/QSet>
QT_BEGIN_NAMESPACE
class QQuickWindow;
class QSGContext;
class QSGRenderContext;
class QAnimationDriver;
class QRunnable;
class Q_QUICK_PRIVATE_EXPORT QSGRenderLoop : public QObject
{
Q_OBJECT
public:
virtual ~QSGRenderLoop();
virtual void show(QQuickWindow *window) = 0;
virtual void hide(QQuickWindow *window) = 0;
virtual void resize(QQuickWindow *) {};
virtual void windowDestroyed(QQuickWindow *window) = 0;
virtual void exposureChanged(QQuickWindow *window) = 0;
virtual QImage grab(QQuickWindow *window) = 0;
virtual void update(QQuickWindow *window) = 0;
virtual void maybeUpdate(QQuickWindow *window) = 0;
virtual void handleUpdateRequest(QQuickWindow *) { }
virtual QAnimationDriver *animationDriver() const = 0;
virtual QSGContext *sceneGraphContext() const = 0;
virtual QSGRenderContext *createRenderContext(QSGContext *) const = 0;
virtual void releaseResources(QQuickWindow *window) = 0;
virtual void postJob(QQuickWindow *window, QRunnable *job);
void addWindow(QQuickWindow *win) { m_windows.insert(win); }
void removeWindow(QQuickWindow *win) { m_windows.remove(win); }
QSet<QQuickWindow *> windows() const { return m_windows; }
virtual QSurface::SurfaceType windowSurfaceType() const;
// ### make this less of a singleton
static QSGRenderLoop *instance();
static void setInstance(QSGRenderLoop *instance);
virtual bool interleaveIncubation() const { return false; }
static void cleanup();
Q_SIGNALS:
void timeToIncubate();
protected:
void handleContextCreationFailure(QQuickWindow *window, bool isEs);
private:
static QSGRenderLoop *s_instance;
QSet<QQuickWindow *> m_windows;
};
QT_END_NAMESPACE
#endif // QSGRenderLoop_P_H
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