/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QPLATFORMGLCONTEXT_H
#define QPLATFORMGLCONTEXT_H

//
//  W A R N I N G
//  -------------
//
// This file is part of the QPA API and is not meant to be used
// in applications. Usage of this API may make your code
// source and binary incompatible with future versions of Qt.
//

#ifndef QT_NO_OPENGL

#include <QtCore/qnamespace.h>
#include <QtGui/qsurfaceformat.h>
#include <QtGui/qwindow.h>
#include <QtGui/qopengl.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


class QPlatformOpenGLContextPrivate;

class Q_GUI_EXPORT QPlatformOpenGLContext
{
    Q_DECLARE_PRIVATE(QPlatformOpenGLContext)
public:
    QPlatformOpenGLContext();
    virtual ~QPlatformOpenGLContext();

    virtual QSurfaceFormat format() const = 0;

    virtual void swapBuffers(QPlatformSurface *surface) = 0;

    virtual GLuint defaultFramebufferObject(QPlatformSurface *surface) const;

    virtual bool makeCurrent(QPlatformSurface *surface) = 0;
    virtual void doneCurrent() = 0;

    virtual bool isSharing() const { return false; }
    virtual bool isValid() const { return true; }

    virtual QFunctionPointer getProcAddress(const QByteArray &procName) = 0;

    QOpenGLContext *context() const;

private:
    friend class QOpenGLContext;

    QScopedPointer<QPlatformOpenGLContextPrivate> d_ptr;

    void setContext(QOpenGLContext *context);

    Q_DISABLE_COPY(QPlatformOpenGLContext)
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QT_NO_OPENGL

#endif // QPLATFORMGLCONTEXT_H