025f4d2ee1
Change-Id: I953899a3ec92856955d36528057b0d45f9c26394 Reviewed-by: Sean Harmer <sean.harmer@kdab.com> Reviewed-by: Dmytro Poplavskiy <dmytro.poplavskiy@nokia.com>
109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Copyright (C) 2012 Research In Motion
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QDECLARATIVEVIDEOOUTPUT_BACKEND_P_H
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#define QDECLARATIVEVIDEOOUTPUT_BACKEND_P_H
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#include <QtCore/qpointer.h>
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#include <QtCore/qsize.h>
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#include <QtQuick/qquickitem.h>
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#include <QtQuick/qsgnode.h>
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QT_BEGIN_NAMESPACE
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class QAbstractVideoSurface;
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class QDeclarativeVideoOutput;
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class QMediaService;
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class QDeclarativeVideoBackend
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{
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public:
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explicit QDeclarativeVideoBackend(QDeclarativeVideoOutput *parent)
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: q(parent)
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{}
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virtual ~QDeclarativeVideoBackend()
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{}
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virtual bool init(QMediaService *service) = 0;
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virtual void releaseSource() = 0;
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virtual void releaseControl() = 0;
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virtual void itemChange(QQuickItem::ItemChange change,
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const QQuickItem::ItemChangeData &changeData) = 0;
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virtual QSize nativeSize() const = 0;
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virtual void updateGeometry() = 0;
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virtual QSGNode *updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNodeData *data) = 0;
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virtual QAbstractVideoSurface *videoSurface() const = 0;
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protected:
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QDeclarativeVideoOutput *q;
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QPointer<QMediaService> m_service;
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};
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/*
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* Helper - returns true if the given orientation has the same aspect as the default (e.g. 180*n)
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*/
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namespace {
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inline bool qIsDefaultAspect(int o)
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{
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return (o % 180) == 0;
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}
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/*
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* Return the orientation normalized to 0-359
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*/
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inline int qNormalizedOrientation(int o)
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{
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// Negative orientations give negative results
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int o2 = o % 360;
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if (o2 < 0)
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o2 += 360;
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return o2;
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}
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}
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QT_END_NAMESPACE
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#endif
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