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++ // Copyright (C) 2022 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++
++ //
++ // 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.
++ //
++
++
++ #ifndef PROCEDURALSKYTEXTURE_H
++ #define PROCEDURALSKYTEXTURE_H
++
++ #include <QtQuick3DHelpers/qtquick3dhelpersexports.h>
++ #include <QtQuick3D/QQuick3DTextureData>
++ #include <QtQml/QQmlEngine>
++
++ #include <QtGui/QColor>
++ #include <QtCore/QByteArray>
++
++ QT_BEGIN_NAMESPACE
++
++ class Q_QUICK3DHELPERS_EXPORT ProceduralSkyTextureData : public QQuick3DTextureData
++ {
++ Q_OBJECT
++ Q_PROPERTY(QColor skyTopColor READ skyTopColor WRITE setSkyTopColor NOTIFY skyTopColorChanged)
++ Q_PROPERTY(QColor skyHorizonColor READ skyHorizonColor WRITE setSkyHorizonColor NOTIFY skyHorizonColorChanged)
++ Q_PROPERTY(float skyCurve READ skyCurve WRITE setSkyCurve NOTIFY skyCurveChanged)
++ Q_PROPERTY(float skyEnergy READ skyEnergy WRITE setSkyEnergy NOTIFY skyEnergyChanged)
++
++ Q_PROPERTY(QColor groundBottomColor READ groundBottomColor WRITE setGroundBottomColor NOTIFY groundBottomColorChanged)
++ Q_PROPERTY(QColor groundHorizonColor READ groundHorizonColor WRITE setGroundHorizonColor NOTIFY groundHorizonColorChanged)
++ Q_PROPERTY(float groundCurve READ groundCurve WRITE setGroundCurve NOTIFY groundCurveChanged)
++ Q_PROPERTY(float groundEnergy READ groundEnergy WRITE setGroundEnergy NOTIFY groundEnergyChanged)
++
++ Q_PROPERTY(QColor sunColor READ sunColor WRITE setSunColor NOTIFY sunColorChanged)
++ Q_PROPERTY(float sunLatitude READ sunLatitude WRITE setSunLatitude NOTIFY sunLatitudeChanged)
++ Q_PROPERTY(float sunLongitude READ sunLongitude WRITE setSunLongitude NOTIFY sunLongitudeChanged)
++ Q_PROPERTY(float sunAngleMin READ sunAngleMin WRITE setSunAngleMin NOTIFY sunAngleMinChanged)
++ Q_PROPERTY(float sunAngleMax READ sunAngleMax WRITE setSunAngleMax NOTIFY sunAngleMaxChanged)
++ Q_PROPERTY(float sunCurve READ sunCurve WRITE setSunCurve NOTIFY sunCurveChanged)
++ Q_PROPERTY(float sunEnergy READ sunEnergy WRITE setSunEnergy NOTIFY sunEnergyChanged)
++ Q_PROPERTY(SkyTextureQuality textureQuality READ textureQuality WRITE setTextureQuality NOTIFY textureQualityChanged)
++ QML_ELEMENT
++
++ public:
++ enum class SkyTextureQuality {
++ SkyTextureQualityLow, // 512
++ SkyTextureQualityMedium, // 1024
++ SkyTextureQualityHigh, // 2048
++ SkyTextureQualityVeryHigh, // 4096
++ };
++ Q_ENUM(SkyTextureQuality)
++
++ ProceduralSkyTextureData();
++ ~ProceduralSkyTextureData();
++
++ QColor skyTopColor() const;
++ QColor skyHorizonColor() const;
++ float skyCurve() const;
++ float skyEnergy() const;
++
++ QColor groundBottomColor() const;
++ QColor groundHorizonColor() const;
++ float groundCurve() const;
++ float groundEnergy() const;
++
++ QColor sunColor() const;
++ float sunLatitude() const;
++ float sunLongitude() const;
++ float sunAngleMin() const;
++ float sunAngleMax() const;
++ float sunCurve() const;
++ float sunEnergy() const;
++
++ SkyTextureQuality textureQuality() const;
++
++ public Q_SLOTS:
++ void setSkyTopColor(QColor skyTopColor);
++ void setSkyHorizonColor(QColor skyHorizonColor);
++ void setSkyCurve(float skyCurve);
++ void setSkyEnergy(float skyEnergy);
++
++ void setGroundBottomColor(QColor groundBottomColor);
++ void setGroundHorizonColor(QColor groundHorizonColor);
++ void setGroundCurve(float groundCurve);
++ void setGroundEnergy(float groundEnergy);
++
++ void setSunColor(QColor sunColor);
++ void setSunLatitude(float sunLatitude);
++ void setSunLongitude(float sunLongitude);
++ void setSunAngleMin(float sunAngleMin);
++ void setSunAngleMax(float sunAngleMax);
++ void setSunCurve(float sunCurve);
++ void setSunEnergy(float sunEnergy);
++
++ void setTextureQuality(SkyTextureQuality textureQuality);
++
++ void generateRGBA16FTexture();
++
++ Q_SIGNALS:
++ void skyTopColorChanged(QColor skyTopColor);
++ void skyHorizonColorChanged(QColor skyHorizonColor);
++ void skyCurveChanged(float skyCurve);
++ void skyEnergyChanged(float skyEnergy);
++
++ void groundBottomColorChanged(QColor groundBottomColor);
++ void groundHorizonColorChanged(QColor groundHorizonColor);
++ void groundCurveChanged(float groundCurve);
++ void groundEnergyChanged(float groundEnergy);
++
++ void sunColorChanged(QColor sunColor);
++
++ void sunLatitudeChanged(float sunLatitude);
++ void sunLongitudeChanged(float sunLongitude);
++ void sunAngleMinChanged(float sunAngleMin);
++ void sunAngleMaxChanged(float sunAngleMax);
++ void sunCurveChanged(float sunCurve);
++ void sunEnergyChanged(float sunEnergy);
++
++ void textureQualityChanged(SkyTextureQuality textureQuality);
++
++ 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 toRGBE9995() const;
++ quint32 toRGBA8() const;
++ quint32 toRGBE8() const;
++ };
++
++ QByteArray generateSkyTexture(int width, int height, QByteArray &imageData, bool isRGBE) const;
++ void scheduleTextureUpdate();
++ QColor m_skyTopColor = QColor(165, 214, 241);
++ QColor m_skyHorizonColor = QColor(214, 234, 250);
++ float m_skyCurve = 0.09f;
++ float m_skyEnergy = 1.0f;
++
++ QColor m_groundBottomColor = QColor(40, 47, 54);
++ QColor m_groundHorizonColor = QColor(108, 101, 95);
++ float m_groundCurve = 0.02f;
++ float m_groundEnergy = 1.0f;
++
++ QColor m_sunColor = QColor(255, 255, 255);
++ float m_sunLatitude = 35.0f;
++ float m_sunLongitude = 0.0f;
++ float m_sunAngleMin = 1.0f;
++ float m_sunAngleMax = 100.0f;
++ float m_sunCurve = 0.05f;
++ float m_sunEnergy = 1.0f;
++
++ SkyTextureQuality m_textureQuality = SkyTextureQuality::SkyTextureQualityMedium;
++ };
++
++ QT_END_NAMESPACE
++
++ #endif // PROCEDURALSKYTEXTURE_H