1// Copyright (C) 2022 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QQUICKMULTIEFFECT_P_P_H
5#define QQUICKMULTIEFFECT_P_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <private/qtquickglobal_p.h>
19
20QT_REQUIRE_CONFIG(quick_shadereffect);
21
22#include <private/qquickmultieffect_p.h>
23#include <private/qquickitem_p.h>
24#include <private/qgfxsourceproxy_p.h>
25#include <QtCore/qvector.h>
26
27QT_BEGIN_NAMESPACE
28
29class QQuickShaderEffect;
30class QQuickShaderEffectSource;
31
32class QQuickMultiEffectPrivate : public QQuickItemPrivate
33{
34 Q_DECLARE_PUBLIC(QQuickMultiEffect)
35
36public:
37 QQuickMultiEffectPrivate();
38 ~QQuickMultiEffectPrivate();
39
40 QQuickItem *source() const;
41 void setSource(QQuickItem *item);
42
43 bool autoPaddingEnabled() const;
44 void setAutoPaddingEnabled(bool enabled);
45
46 QRectF paddingRect() const;
47 void setPaddingRect(const QRectF &rect);
48
49 qreal brightness() const;
50 void setBrightness(qreal brightness);
51
52 qreal contrast() const;
53 void setContrast(qreal contrast);
54
55 qreal saturation() const;
56 void setSaturation(qreal saturation);
57
58 qreal colorization() const;
59 void setColorization(qreal colorization);
60
61 QColor colorizationColor() const;
62 void setColorizationColor(const QColor &color);
63
64 bool blurEnabled() const;
65 void setBlurEnabled(bool enabled);
66
67 qreal blur() const;
68 void setBlur(qreal blur);
69
70 int blurMax() const;
71 void setBlurMax(int blurMax);
72
73 qreal blurMultiplier() const;
74 void setBlurMultiplier(qreal blurMultiplier);
75
76 bool shadowEnabled() const;
77 void setShadowEnabled(bool enabled);
78
79 qreal shadowOpacity() const;
80 void setShadowOpacity(qreal shadowOpacity);
81
82 qreal shadowBlur() const;
83 void setShadowBlur(qreal shadowBlur);
84
85 qreal shadowHorizontalOffset() const;
86 void setShadowHorizontalOffset(qreal offset);
87
88 qreal shadowVerticalOffset() const;
89 void setShadowVerticalOffset(qreal offset);
90
91 QColor shadowColor() const;
92 void setShadowColor(const QColor &color);
93
94 qreal shadowScale() const;
95 void setShadowScale(qreal shadowScale);
96
97 bool maskEnabled() const;
98 void setMaskEnabled(bool enabled);
99
100 QQuickItem *maskSource() const;
101 void setMaskSource(QQuickItem *item);
102
103 qreal maskThresholdMin() const;
104 void setMaskThresholdMin(qreal threshold);
105
106 qreal maskSpreadAtMin() const;
107 void setMaskSpreadAtMin(qreal spread);
108
109 qreal maskThresholdMax() const;
110 void setMaskThresholdMax(qreal threshold);
111
112 qreal maskSpreadAtMax() const;
113 void setMaskSpreadAtMax(qreal spread);
114
115 bool maskInverted() const;
116 void setMaskInverted(bool inverted);
117
118 QRectF itemRect() const;
119 QString fragmentShader() const;
120 QString vertexShader() const;
121 bool hasProxySource() const;
122
123 void handleGeometryChange(const QRectF &newGeometry, const QRectF &oldGeometry);
124 void handleItemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value);
125 void initialize();
126 void updateMaskThresholdSpread();
127 void updateCenterOffset();
128 void updateShadowOffset();
129 void updateColorizationColor();
130 void updateShadowColor();
131 float calculateLod(float blurAmount);
132 float blurWeight(float v);
133 void getBlurWeights(float blurLod, QVector4D &blurWeight1, QVector2D &blurWeight2);
134 void updateBlurWeights();
135 void updateShadowBlurWeights();
136 void updateBlurItemSizes(bool forceUpdate = false);
137 void updateEffectShaders();
138 void updateBlurLevel(bool forceUpdate = false);
139 void updateBlurItemsAmount(int blurLevel);
140 void updateSourcePadding();
141 void updateProxyActiveCheck();
142 void proxyOutputChanged();
143
144private:
145 bool m_initialized = false;
146 QQuickItem *m_sourceItem = nullptr;
147 QGfxSourceProxyME *m_shaderSource = nullptr;
148 QQuickShaderEffect *m_shaderEffect = nullptr;
149 QQuickShaderEffectSource *m_dummyShaderSource = nullptr;
150 QVector<QQuickShaderEffect *> m_blurEffects;
151 bool m_autoPaddingEnabled = true;
152 QRectF m_paddingRect;
153 qreal m_brightness = 0.0;
154 qreal m_contrast = 0.0;
155 qreal m_saturation = 0.0;
156 qreal m_colorization = 0.0;
157 QColor m_colorizationColor = { 255, 0, 0, 255 };
158 bool m_blurEnabled = false;
159 qreal m_blur = 0.0;
160 int m_blurMax = 32;
161 qreal m_blurMultiplier = 0.0;
162 bool m_shadowEnabled = false;
163 qreal m_shadowOpacity = 1.0;
164 qreal m_shadowBlur = 1.0;
165 qreal m_shadowHorizontalOffset = 0.0;
166 qreal m_shadowVerticalOffset = 0.0;
167 QColor m_shadowColor = { 0, 0, 0, 255 };
168 qreal m_shadowScale = 1.0;
169 bool m_maskEnabled = false;
170 QQuickItem *m_maskSourceItem = nullptr;
171 qreal m_maskThresholdMin = 0.0;
172 qreal m_maskSpreadAtMin = 0.0;
173 qreal m_maskThresholdMax = 1.0;
174 qreal m_maskSpreadAtMax = 0.0;
175 bool m_maskInverted = false;
176
177 int m_blurLevel = 0;
178 QString m_vertShader;
179 QString m_fragShader;
180 QSizeF m_firstBlurItemSize;
181
182 QVector4D m_blurWeight1;
183 QVector2D m_blurWeight2;
184 QVector4D m_shadowBlurWeight1;
185 QVector2D m_shadowBlurWeight2;
186};
187
188
189
190QT_END_NAMESPACE
191
192#endif // QQUICKMULTIEFFECT_P_P_H
193

source code of qtdeclarative/src/effects/qquickmultieffect_p_p.h