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// Copyright (C) 2022 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 QQUICKMULTIEFFECT_P_P_H
#define QQUICKMULTIEFFECT_P_P_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/qtquickglobal_p.h>
QT_REQUIRE_CONFIG(quick_shadereffect);
#include <private/qquickmultieffect_p.h>
#include <private/qquickitem_p.h>
#include <private/qgfxsourceproxy_p.h>
#include <QtCore/qvector.h>
QT_BEGIN_NAMESPACE
class QQuickShaderEffect;
class QQuickShaderEffectSource;
class QQuickMultiEffectPrivate : public QQuickItemPrivate
{
Q_DECLARE_PUBLIC(QQuickMultiEffect)
public:
QQuickMultiEffectPrivate();
~QQuickMultiEffectPrivate();
QQuickItem *source() const;
void setSource(QQuickItem *item);
bool autoPaddingEnabled() const;
void setAutoPaddingEnabled(bool enabled);
QRectF paddingRect() const;
void setPaddingRect(const QRectF &rect);
qreal brightness() const;
void setBrightness(qreal brightness);
qreal contrast() const;
void setContrast(qreal contrast);
qreal saturation() const;
void setSaturation(qreal saturation);
qreal colorization() const;
void setColorization(qreal colorization);
QColor colorizationColor() const;
void setColorizationColor(const QColor &color);
bool blurEnabled() const;
void setBlurEnabled(bool enabled);
qreal blur() const;
void setBlur(qreal blur);
int blurMax() const;
void setBlurMax(int blurMax);
qreal blurMultiplier() const;
void setBlurMultiplier(qreal blurMultiplier);
bool shadowEnabled() const;
void setShadowEnabled(bool enabled);
qreal shadowOpacity() const;
void setShadowOpacity(qreal shadowOpacity);
qreal shadowBlur() const;
void setShadowBlur(qreal shadowBlur);
qreal shadowHorizontalOffset() const;
void setShadowHorizontalOffset(qreal offset);
qreal shadowVerticalOffset() const;
void setShadowVerticalOffset(qreal offset);
QColor shadowColor() const;
void setShadowColor(const QColor &color);
qreal shadowScale() const;
void setShadowScale(qreal shadowScale);
bool maskEnabled() const;
void setMaskEnabled(bool enabled);
QQuickItem *maskSource() const;
void setMaskSource(QQuickItem *item);
qreal maskThresholdMin() const;
void setMaskThresholdMin(qreal threshold);
qreal maskSpreadAtMin() const;
void setMaskSpreadAtMin(qreal spread);
qreal maskThresholdMax() const;
void setMaskThresholdMax(qreal threshold);
qreal maskSpreadAtMax() const;
void setMaskSpreadAtMax(qreal spread);
bool maskInverted() const;
void setMaskInverted(bool inverted);
QRectF itemRect() const;
QString fragmentShader() const;
QString vertexShader() const;
bool hasProxySource() const;
void handleGeometryChange(const QRectF &newGeometry, const QRectF &oldGeometry);
void handleItemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value);
void initialize();
void updateMaskThresholdSpread();
void updateCenterOffset();
void updateShadowOffset();
void updateColorizationColor();
void updateShadowColor();
float calculateLod(float blurAmount);
float blurWeight(float v);
void getBlurWeights(float blurLod, QVector4D &blurWeight1, QVector2D &blurWeight2);
void updateBlurWeights();
void updateShadowBlurWeights();
void updateBlurItemSizes(bool forceUpdate = false);
void updateEffectShaders();
void updateBlurLevel(bool forceUpdate = false);
void updateBlurItemsAmount(int blurLevel);
void updateSourcePadding();
void updateProxyActiveCheck();
void proxyOutputChanged();
private:
bool m_initialized = false;
QQuickItem *m_sourceItem = nullptr;
QGfxSourceProxy *m_shaderSource = nullptr;
QQuickShaderEffect *m_shaderEffect = nullptr;
QQuickShaderEffectSource *m_dummyShaderSource = nullptr;
QVector<QQuickShaderEffect *> m_blurEffects;
bool m_autoPaddingEnabled = true;
QRectF m_paddingRect;
qreal m_brightness = 0.0;
qreal m_contrast = 0.0;
qreal m_saturation = 0.0;
qreal m_colorization = 0.0;
QColor m_colorizationColor = { 255, 0, 0, 255 };
bool m_blurEnabled = false;
qreal m_blur = 0.0;
int m_blurMax = 32;
qreal m_blurMultiplier = 0.0;
bool m_shadowEnabled = false;
qreal m_shadowOpacity = 1.0;
qreal m_shadowBlur = 1.0;
qreal m_shadowHorizontalOffset = 0.0;
qreal m_shadowVerticalOffset = 0.0;
QColor m_shadowColor = { 0, 0, 0, 255 };
qreal m_shadowScale = 1.0;
bool m_maskEnabled = false;
QQuickItem *m_maskSourceItem = nullptr;
qreal m_maskThresholdMin = 0.0;
qreal m_maskSpreadAtMin = 0.0;
qreal m_maskThresholdMax = 1.0;
qreal m_maskSpreadAtMax = 0.0;
bool m_maskInverted = false;
int m_blurLevel = 0;
QString m_vertShader;
QString m_fragShader;
QSizeF m_firstBlurItemSize;
QVector4D m_blurWeight1;
QVector2D m_blurWeight2;
QVector4D m_shadowBlurWeight1;
QVector2D m_shadowBlurWeight2;
};
QT_END_NAMESPACE
#endif // QQUICKMULTIEFFECT_P_P_H
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