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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part 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 AVFVIDEOFRAMERENDERER_H
#define AVFVIDEOFRAMERENDERER_H

#include <QtCore/QObject>
#include <QtGui/QImage>
#include <QtGui/QOpenGLContext>
#include <QtCore/QSize>

@class CARenderer;
@class AVPlayerLayer;

QT_BEGIN_NAMESPACE

class QOpenGLFramebufferObject;
class QWindow;
class QOpenGLContext;
class QAbstractVideoSurface;
class QGLWidget;

class AVFVideoFrameRenderer : public QObject
{
public:
    AVFVideoFrameRenderer(QAbstractVideoSurface *surface, QObject *parent = 0);
#ifndef QT_NO_WIDGETS
    AVFVideoFrameRenderer(QGLWidget *glWidget, const QSize &size, QObject *parent = 0);
#endif

    virtual ~AVFVideoFrameRenderer();

    GLuint renderLayerToTexture(AVPlayerLayer *layer);
    QImage renderLayerToImage(AVPlayerLayer *layer);

private:
    QOpenGLFramebufferObject* initRenderer(AVPlayerLayer *layer);
    void renderLayerToFBO(AVPlayerLayer *layer, QOpenGLFramebufferObject *fbo);

    CARenderer *m_videoLayerRenderer;
#ifndef QT_NO_WIDGETS
    QGLWidget *m_glWidget;
#endif
    QAbstractVideoSurface *m_surface;
    QOpenGLFramebufferObject *m_fbo[2];
    QWindow *m_offscreenSurface;
    QOpenGLContext *m_glContext;
    QSize m_targetSize;

    uint m_currentBuffer;
    bool m_isContextShared;
};

QT_END_NAMESPACE

#endif // AVFVIDEOFRAMERENDERER_H