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#ifndef YUV_VIDEO_NODE_H
#define YUV_VIDEO_NODE_H

#include <QtQuick/qsgmaterial.h>
#include <QtQuick/qsgnode.h>

QT_FORWARD_DECLARE_CLASS(QSGTexture)

namespace QtWebEngineCore {

// These classes duplicate, QtQuick style, the logic of GLRenderer::DrawYUVVideoQuad.
// Their behavior should stay as close as possible to GLRenderer.

class YUVVideoMaterial : public QSGMaterial
{
public:
    enum ColorSpace {
        REC_601,  // SDTV standard with restricted "studio swing" color range.
        REC_709,  // HDTV standard with restricted "studio swing" color range.
        JPEG      // Full color range [0, 255] JPEG color space.
    };
    YUVVideoMaterial(QSGTexture *yTexture, QSGTexture *uTexture, QSGTexture *vTexture,
                     const QRectF &yaTexCoordRect, const QRectF &uvTexCoordRect, const QSizeF &yaTexSize, const QSizeF &uvTexSize,
                     ColorSpace colorspace);

    virtual QSGMaterialType *type() const Q_DECL_OVERRIDE
    {
        static QSGMaterialType theType;
        return &theType;
    }

    virtual QSGMaterialShader *createShader() const Q_DECL_OVERRIDE;
    virtual int compare(const QSGMaterial *other) const Q_DECL_OVERRIDE;

    QSGTexture *m_yTexture;
    QSGTexture *m_uTexture;
    QSGTexture *m_vTexture;
    QRectF m_yaTexCoordRect;
    QRectF m_uvTexCoordRect;
    QSizeF m_yaTexSize;
    QSizeF m_uvTexSize;
    ColorSpace m_colorSpace;

};

class YUVAVideoMaterial : public YUVVideoMaterial
{
public:
    YUVAVideoMaterial(QSGTexture *yTexture, QSGTexture *uTexture, QSGTexture *vTexture, QSGTexture *aTexture,
                      const QRectF &yaTexCoordRect, const QRectF &uvTexCoordRect, const QSizeF &yaTexSize, const QSizeF &uvTexSize,
                      ColorSpace colorspace);

    virtual QSGMaterialType *type() const Q_DECL_OVERRIDE
    {
        static QSGMaterialType theType;
        return &theType;
    }

    virtual QSGMaterialShader *createShader() const Q_DECL_OVERRIDE;
    virtual int compare(const QSGMaterial *other) const Q_DECL_OVERRIDE;

    QSGTexture *m_aTexture;
};

class YUVVideoNode : public QSGGeometryNode
{
public:
    YUVVideoNode(QSGTexture *yTexture, QSGTexture *uTexture, QSGTexture *vTexture, QSGTexture *aTexture,
                 const QRectF &yaTexCoordRect, const QRectF &uvTexCoordRect, const QSizeF &yaTexSize, const QSizeF &uvTexSize,
                 YUVVideoMaterial::ColorSpace colorspace);
    void setRect(const QRectF &rect);

private:
    QSGGeometry m_geometry;
    YUVVideoMaterial *m_material;
};

} // namespace

#endif // YUV_VIDEO_NODE_H
