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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef QSGSOFTWAREINTERNALIMAGENODE_H
#define QSGSOFTWAREINTERNALIMAGENODE_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 <private/qsgadaptationlayer_p.h>
#include <private/qsgtexturematerial_p.h>

#include <QtCore/QPointer>

QT_BEGIN_NAMESPACE

namespace QSGSoftwareHelpers {

typedef QVarLengthArray<QPainter::PixmapFragment, 16> QPixmapFragmentsArray;

struct QTileRules
{
    inline QTileRules(Qt::TileRule horizontalRule, Qt::TileRule verticalRule)
            : horizontal(horizontalRule), vertical(verticalRule) {}
    inline QTileRules(Qt::TileRule rule = Qt::StretchTile)
            : horizontal(rule), vertical(rule) {}
    Qt::TileRule horizontal;
    Qt::TileRule vertical;
};

#ifndef Q_QDOC
// For internal use only.
namespace QDrawBorderPixmap
{
    enum DrawingHint
    {
        OpaqueTopLeft = 0x0001,
        OpaqueTop = 0x0002,
        OpaqueTopRight = 0x0004,
        OpaqueLeft = 0x0008,
        OpaqueCenter = 0x0010,
        OpaqueRight = 0x0020,
        OpaqueBottomLeft = 0x0040,
        OpaqueBottom = 0x0080,
        OpaqueBottomRight = 0x0100,
        OpaqueCorners = OpaqueTopLeft | OpaqueTopRight | OpaqueBottomLeft | OpaqueBottomRight,
        OpaqueEdges = OpaqueTop | OpaqueLeft | OpaqueRight | OpaqueBottom,
        OpaqueFrame = OpaqueCorners | OpaqueEdges,
        OpaqueAll = OpaqueCenter | OpaqueFrame
    };

    Q_DECLARE_FLAGS(DrawingHints, DrawingHint)
}
#endif

void qDrawBorderPixmap(QPainter *painter, const QRect &targetRect, const QMargins &targetMargins,
                       const QPixmap &pixmap, const QRect &sourceRect,const QMargins &sourceMargins,
                       const QTileRules &rules, QDrawBorderPixmap::DrawingHints hints);

} // QSGSoftwareHelpers namespace

class QSGSoftwareInternalImageNode : public QSGInternalImageNode
{
public:
    QSGSoftwareInternalImageNode();

    void setTargetRect(const QRectF &rect) override;
    void setInnerTargetRect(const QRectF &rect) override;
    void setInnerSourceRect(const QRectF &rect) override;
    void setSubSourceRect(const QRectF &rect) override;
    void setTexture(QSGTexture *texture) override;
    void setMirror(bool mirrorHorizontally, bool mirrorVertically) override;
    void setMipmapFiltering(QSGTexture::Filtering filtering) override;
    void setFiltering(QSGTexture::Filtering filtering) override;
    void setHorizontalWrapMode(QSGTexture::WrapMode wrapMode) override;
    void setVerticalWrapMode(QSGTexture::WrapMode wrapMode) override;
    void update() override;

    void preprocess() override;

    void paint(QPainter *painter);

    QRectF rect() const;

    const QPixmap &pixmap() const;
private:

    QRectF m_targetRect;
    QRectF m_innerTargetRect;
    QRectF m_innerSourceRect;
    QRectF m_subSourceRect;

    QPointer<QSGTexture> m_texture;
    QPixmap m_cachedMirroredPixmap;

    bool m_mirrorHorizontally;
    bool m_mirrorVertically;
    bool m_textureIsLayer;
    bool m_smooth;
    bool m_tileHorizontal;
    bool m_tileVertical;
    bool m_cachedMirroredPixmapIsDirty;
};

QT_END_NAMESPACE

#endif // QSGSOFTWAREINTERNALIMAGENODE_H