/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QPIXMAPDATA_GL_P_H
#define QPIXMAPDATA_GL_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 "qgl.h"

#include "private/qpixmapdata_p.h"

QT_BEGIN_NAMESPACE

class QPaintEngine;

class QGLPixmapData : public QPixmapData
{
public:
    QGLPixmapData(PixelType type);
    ~QGLPixmapData();

    bool isValid() const;

    void resize(int width, int height);
    void fromImage(const QImage &image,
                   Qt::ImageConversionFlags flags);

    void fill(const QColor &color);
    bool hasAlphaChannel() const;
    QImage toImage() const;
    QPaintEngine* paintEngine() const;

    GLuint bind() const;
    GLuint textureId() const;

    bool isValidContext(const QGLContext *ctx) const;

    void ensureCreated() const;

protected:
    int metric(QPaintDevice::PaintDeviceMetric metric) const;

private:
    QGLPixmapData(const QGLPixmapData &other);
    QGLPixmapData &operator=(const QGLPixmapData &other);

    int m_width;
    int m_height;

    mutable GLuint m_texture;
    mutable bool m_dirty;
    mutable QImage m_source;
};

QT_END_NAMESPACE

#endif // QPIXMAPDATA_GL_P_H