iestexturedata.h - mozsearch

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// Copyright (C) 2026 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

#ifndef IESTEXTUREDATA_H

#define IESTEXTUREDATA_H

#include <QQuick3DTextureData>

#include <QUrl>

#include <QVector>

#include <QList>

#include <QTextStream>

class IESTextureData : public QQuick3DTextureData

    Q_OBJECT

    Q_PROPERTY(QList<QUrl> sources READ sources WRITE setSources NOTIFY sourcesChanged)

    QML_ELEMENT

public:

    explicit IESTextureData(QQuick3DObject *parent = nullptr);

    QList<QUrl> sources() const;

    void setSources(const QList<QUrl> &sources);

signals:

    void sourcesChanged();

private:

    struct IESData {

        int numVerticalAngles = 0;

        int numHorizontalAngles = 0;

        float candelaMultiplier = 1.0f;

        float maxCandela = 0.0f;

        QVector<float> verticalAngles;

        QVector<float> horizontalAngles;

        QVector<QVector<float>> candelaValues;

};

    void parseIESFiles();

    IESData parseIESFile(const QUrl &source);

    QVector<float> readFloats(QTextStream &in, int count);

    void generateTexture(const QVector<IESData> &dataList);

    float getIntensity(const IESData &data, float theta, float phi) const;

    QList<QUrl> m_sources;

};

#endif // IESTEXTUREDATA_H