/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Data Visualization module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
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** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
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//
//  W A R N I N G
//  -------------
//
// This file is not part of the QtDataVisualization 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.

#ifndef QCUSTOM3DVOLUME_P_H
#define QCUSTOM3DVOLUME_P_H

#include "qcustom3dvolume.h"
#include "qcustom3ditem_p.h"

QT_BEGIN_NAMESPACE

struct QCustomVolumeDirtyBitField {
    bool textureDimensionsDirty : 1;
    bool slicesDirty            : 1;
    bool colorTableDirty        : 1;
    bool textureDataDirty       : 1;
    bool textureFormatDirty     : 1;
    bool alphaDirty             : 1;
    bool shaderDirty            : 1;

    QCustomVolumeDirtyBitField()
        : textureDimensionsDirty(false),
          slicesDirty(false),
          colorTableDirty(false),
          textureDataDirty(false),
          textureFormatDirty(false),
          alphaDirty(false),
          shaderDirty(false)
    {
    }
};

class QCustom3DVolumePrivate : public QCustom3DItemPrivate
{
    Q_OBJECT

public:
    QCustom3DVolumePrivate(QCustom3DVolume *q);
    QCustom3DVolumePrivate(QCustom3DVolume *q, const QVector3D &position, const QVector3D &scaling,
                           const QQuaternion &rotation, int textureWidth, int textureHeight,
                           int textureDepth, QList<uchar> *textureData,
                           QImage::Format textureFormat, const QList<QRgb> &colorTable);
    virtual ~QCustom3DVolumePrivate();

    void resetDirtyBits();
    QImage renderSlice(Qt::Axis axis, int index);

    QCustom3DVolume *qptr();

public:
    int m_textureWidth;
    int m_textureHeight;
    int m_textureDepth;
    int m_sliceIndexX;
    int m_sliceIndexY;
    int m_sliceIndexZ;

    QImage::Format m_textureFormat;
    QList<QRgb> m_colorTable;
    QList<uchar> *m_textureData;

    float m_alphaMultiplier;
    bool m_preserveOpacity;
    bool m_useHighDefShader;

    bool m_drawSlices;
    bool m_drawSliceFrames;
    QColor m_sliceFrameColor;
    QVector3D m_sliceFrameWidths;
    QVector3D m_sliceFrameGaps;
    QVector3D m_sliceFrameThicknesses;

    QCustomVolumeDirtyBitField m_dirtyBitsVolume;

private:
    int multipliedAlphaValue(int alpha);

    friend class QCustom3DVolume;
};

QT_END_NAMESPACE

#endif
