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39
40#ifndef QSGRHISHADEREFFECTNODE_P_H
41#define QSGRHISHADEREFFECTNODE_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 <private/qsgadaptationlayer_p.h>
55#include <qsgmaterial.h>
56
57QT_BEGIN_NAMESPACE
58
59class QSGDefaultRenderContext;
60class QSGPlainTexture;
61class QSGRhiShaderEffectNode;
62class QSGRhiGuiThreadShaderEffectManager;
63class QFileSelector;
64
65class QSGRhiShaderLinker
66{
67public:
68 void reset(const QShader &vs, const QShader &fs);
69
70 void feedConstants(const QSGShaderEffectNode::ShaderData &shader, const QSet<int> *dirtyIndices = nullptr);
71 void feedSamplers(const QSGShaderEffectNode::ShaderData &shader, const QSet<int> *dirtyIndices = nullptr);
72 void linkTextureSubRects();
73
74 void dump();
75
76 struct Constant {
77 uint size;
78 QSGShaderEffectNode::VariableData::SpecialType specialType;
79 QVariant value;
80 bool operator==(const Constant &other) const {
81 return size == other.size && specialType == other.specialType
82 && (specialType == QSGShaderEffectNode::VariableData::None ? value == other.value : true);
83 }
84 };
85
86 bool m_error;
87 QShader m_vs;
88 QShader m_fs;
89 uint m_constantBufferSize;
90 QHash<uint, Constant> m_constants; // offset -> Constant
91 QHash<int, QVariant> m_samplers; // binding -> value (source ref)
92 QHash<QByteArray, int> m_samplerNameMap; // name -> binding
93};
94
95QDebug operator<<(QDebug debug, const QSGRhiShaderLinker::Constant &c);
96
97class QSGRhiShaderEffectMaterial : public QSGMaterial
98{
99public:
100 QSGRhiShaderEffectMaterial(QSGRhiShaderEffectNode *node);
101 ~QSGRhiShaderEffectMaterial();
102
103 int compare(const QSGMaterial *other) const override;
104 QSGMaterialType *type() const override;
105 QSGMaterialShader *createShader() const override;
106
107 void updateTextureProviders(bool layoutChange);
108
109 static const int MAX_BINDINGS = 32;
110
111 QSGRhiShaderEffectNode *m_node;
112 QSGMaterialType *m_materialType = nullptr;
113 QSGRhiShaderLinker m_linker;
114 QVector<QSGTextureProvider *> m_textureProviders; // [binding] = QSGTextureProvider
115 bool m_geometryUsesTextureSubRect = false;
116 QSGShaderEffectNode::CullMode m_cullMode = QSGShaderEffectNode::NoCulling;
117 bool m_hasCustomVertexShader = false;
118 bool m_hasCustomFragmentShader = false;
119 QShader m_vertexShader;
120 QShader m_fragmentShader;
121 QSGPlainTexture *m_dummyTexture = nullptr;
122};
123
124class QSGRhiShaderEffectNode : public QObject, public QSGShaderEffectNode
125{
126 Q_OBJECT
127
128public:
129 QSGRhiShaderEffectNode(QSGDefaultRenderContext *rc, QSGRhiGuiThreadShaderEffectManager *mgr);
130
131 QRectF updateNormalizedTextureSubRect(bool supportsAtlasTextures) override;
132 void syncMaterial(SyncData *syncData) override;
133 void preprocess() override;
134
135 static void cleanupMaterialTypeCache();
136
137private Q_SLOTS:
138 void handleTextureChange();
139 void handleTextureProviderDestroyed(QObject *object);
140
141private:
142 QSGDefaultRenderContext *m_rc;
143 QSGRhiGuiThreadShaderEffectManager *m_mgr;
144 QSGRhiShaderEffectMaterial m_material;
145};
146
147class QSGRhiGuiThreadShaderEffectManager : public QSGGuiThreadShaderEffectManager
148{
149public:
150 bool hasSeparateSamplerAndTextureObjects() const override;
151 QString log() const override;
152 Status status() const override;
153 void prepareShaderCode(ShaderInfo::Type typeHint, const QByteArray &src, ShaderInfo *result) override;
154
155private:
156 bool reflect(ShaderInfo *result);
157 Status m_status = Uncompiled;
158 QFileSelector *m_fileSelector = nullptr;
159};
160
161QT_END_NAMESPACE
162
163#endif // QSGRHISHADEREFFECTNODE_P_H
164