dynamictexturedata.h

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// Copyright (C) 2020 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#ifndef DYNAMICTEXTUREDATA_H

#define DYNAMICTEXTUREDATA_H

#include <QtQuick3D/QQuick3DTextureData>

class DynamicTextureData : public QQuick3DTextureData

    Q_OBJECT

    QML_NAMED_ELEMENT(DynamicTextureData)

public:

    DynamicTextureData();

public Q_SLOTS:

    void generateRGBA8Texture();

    void generateRGBE8Texture();

    void generateRGBA32FTexture();

private:

    struct LinearColor {

        float r = 0.0f;

        float g = 0.0f;

        float b = 0.0f;

        float a = 0.0f;

        LinearColor(const QColor &color);

        LinearColor() {}

        LinearColor interpolate(const LinearColor &color, float value) const;

        LinearColor blend(const LinearColor &color) const;

        quint32 toRGBE8() const;

};

    static void generateHDRTexture(int width, int height, QByteArray &imageData, bool isRGBE);

};

#endif // DYNAMICTEXTUREDATA_H