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39
40#ifndef QQUICKGENERICSHADEREFFECT_P_H
41#define QQUICKGENERICSHADEREFFECT_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtQuick/qquickitem.h>
55#include <private/qtquickglobal_p.h>
56#include <private/qsgadaptationlayer_p.h>
57#include "qquickshadereffect_p.h"
58#include "qquickshadereffectmesh_p.h"
59
60QT_BEGIN_NAMESPACE
61
62class QSignalMapper;
63
64class Q_QUICK_PRIVATE_EXPORT QQuickGenericShaderEffect : public QObject
65{
66 Q_OBJECT
67
68public:
69 QQuickGenericShaderEffect(QQuickShaderEffect *item, QObject *parent = nullptr);
70 ~QQuickGenericShaderEffect();
71
72 QByteArray fragmentShader() const { return m_fragShader; }
73 void setFragmentShader(const QByteArray &src);
74
75 QByteArray vertexShader() const { return m_vertShader; }
76 void setVertexShader(const QByteArray &src);
77
78 bool blending() const { return m_blending; }
79 void setBlending(bool enable);
80
81 QVariant mesh() const;
82 void setMesh(const QVariant &mesh);
83
84 QQuickShaderEffect::CullMode cullMode() const { return m_cullMode; }
85 void setCullMode(QQuickShaderEffect::CullMode face);
86
87 QString log() const;
88 QQuickShaderEffect::Status status() const;
89
90 bool supportsAtlasTextures() const { return m_supportsAtlasTextures; }
91 void setSupportsAtlasTextures(bool supports);
92
93 QString parseLog();
94
95 void handleEvent(QEvent *);
96 void handleGeometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry);
97 QSGNode *handleUpdatePaintNode(QSGNode *, QQuickItem::UpdatePaintNodeData *);
98 void handleComponentComplete();
99 void handleItemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value);
100 void maybeUpdateShaders();
101
102private slots:
103 void propertyChanged(int mappedId);
104 void sourceDestroyed(QObject *object);
105 void markGeometryDirtyAndUpdate();
106 void markGeometryDirtyAndUpdateIfSupportsAtlas();
107 void shaderCodePrepared(bool ok, QSGGuiThreadShaderEffectManager::ShaderInfo::Type typeHint,
108 const QByteArray &src, QSGGuiThreadShaderEffectManager::ShaderInfo *result);
109
110private:
111 QSGGuiThreadShaderEffectManager *shaderEffectManager() const;
112
113 enum Shader {
114 Vertex,
115 Fragment,
116
117 NShader
118 };
119 bool updateShader(Shader shaderType, const QByteArray &src);
120 void updateShaderVars(Shader shaderType);
121 void disconnectSignals(Shader shaderType);
122 bool sourceIsUnique(QQuickItem *source, Shader typeToSkip, int indexToSkip) const;
123
124 QQuickShaderEffect *m_item;
125 QSize m_meshResolution;
126 QQuickShaderEffectMesh *m_mesh;
127 QQuickGridMesh m_defaultMesh;
128 QQuickShaderEffect::CullMode m_cullMode;
129 bool m_blending;
130 bool m_supportsAtlasTextures;
131 mutable QSGGuiThreadShaderEffectManager *m_mgr;
132 QByteArray m_fragShader;
133 bool m_fragNeedsUpdate;
134 QByteArray m_vertShader;
135 bool m_vertNeedsUpdate;
136
137 QSGShaderEffectNode::ShaderData m_shaders[NShader];
138 QSGShaderEffectNode::DirtyShaderFlags m_dirty;
139 QSet<int> m_dirtyConstants[NShader];
140 QSet<int> m_dirtyTextures[NShader];
141 QSGGuiThreadShaderEffectManager::ShaderInfo *m_inProgress[NShader];
142
143 struct SignalMapper {
144 SignalMapper() : mapper(nullptr), active(false) { }
145 QSignalMapper *mapper;
146 bool active;
147 };
148 QVector<SignalMapper> m_signalMappers[NShader];
149};
150
151QT_END_NAMESPACE
152
153#endif // QQUICKGENERICSHADEREFFECT_P_H
154