| 1 | // Copyright (C) 2019 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QSGRHISHADEREFFECTNODE_P_H |
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| 5 | #define QSGRHISHADEREFFECTNODE_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <private/qsgadaptationlayer_p.h> |
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| 19 | #include <qsgmaterial.h> |
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| 20 | #include <QUrl> |
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| 21 | |
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| 22 | QT_BEGIN_NAMESPACE |
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| 23 | |
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| 24 | class QSGDefaultRenderContext; |
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| 25 | class QSGPlainTexture; |
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| 26 | class QSGRhiShaderEffectNode; |
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| 27 | class QFileSelector; |
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| 28 | |
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| 29 | class QSGRhiShaderLinker |
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| 30 | { |
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| 31 | public: |
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| 32 | void reset(const QShader &vs, const QShader &fs); |
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| 33 | |
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| 34 | void feedConstants(const QSGShaderEffectNode::ShaderData &shader, const QSet<int> *dirtyIndices = nullptr); |
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| 35 | void feedSamplers(const QSGShaderEffectNode::ShaderData &shader, const QSet<int> *dirtyIndices = nullptr); |
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| 36 | void linkTextureSubRects(); |
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| 37 | |
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| 38 | void dump(); |
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| 39 | |
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| 40 | struct Constant { |
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| 41 | uint size; |
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| 42 | QSGShaderEffectNode::VariableData::SpecialType specialType; |
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| 43 | QVariant value; |
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| 44 | bool operator==(const Constant &other) const { |
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| 45 | return size == other.size && specialType == other.specialType |
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| 46 | && (specialType == QSGShaderEffectNode::VariableData::None ? value == other.value : true); |
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| 47 | } |
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| 48 | }; |
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| 49 | |
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| 50 | bool m_error; |
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| 51 | QShader m_vs; |
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| 52 | QShader m_fs; |
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| 53 | QHash<uint, Constant> m_constants; // offset -> Constant |
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| 54 | QHash<int, QVariant> m_samplers; // binding -> value (source ref) |
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| 55 | QHash<QByteArray, int> m_samplerNameMap; // name -> binding |
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| 56 | QSet<int> m_subRectBindings; |
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| 57 | }; |
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| 58 | |
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| 59 | QDebug operator<<(QDebug debug, const QSGRhiShaderLinker::Constant &c); |
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| 60 | |
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| 61 | class QSGRhiShaderEffectMaterial : public QSGMaterial |
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| 62 | { |
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| 63 | public: |
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| 64 | QSGRhiShaderEffectMaterial(QSGRhiShaderEffectNode *node); |
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| 65 | ~QSGRhiShaderEffectMaterial(); |
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| 66 | |
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| 67 | int compare(const QSGMaterial *other) const override; |
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| 68 | QSGMaterialType *type() const override; |
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| 69 | QSGMaterialShader *createShader(QSGRendererInterface::RenderMode renderMode) const override; |
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| 70 | |
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| 71 | void updateTextureProviders(bool layoutChange); |
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| 72 | |
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| 73 | bool usesSubRectUniform(int binding) const { return m_linker.m_subRectBindings.contains(value: binding); } |
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| 74 | |
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| 75 | static const int MAX_BINDINGS = 32; |
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| 76 | |
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| 77 | QSGRhiShaderEffectNode *m_node; |
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| 78 | QSGMaterialType *m_materialType = nullptr; |
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| 79 | void *m_materialTypeCacheKey = nullptr; |
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| 80 | QSGRhiShaderLinker m_linker; |
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| 81 | QVector<QSGTextureProvider *> m_textureProviders; // [binding] = QSGTextureProvider |
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| 82 | bool m_geometryUsesTextureSubRect = false; |
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| 83 | QSGShaderEffectNode::CullMode m_cullMode = QSGShaderEffectNode::NoCulling; |
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| 84 | bool m_hasCustomVertexShader = false; |
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| 85 | bool m_hasCustomFragmentShader = false; |
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| 86 | QShader m_vertexShader; |
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| 87 | QShader m_fragmentShader; |
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| 88 | QSGPlainTexture *m_dummyTexture = nullptr; |
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| 89 | }; |
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| 90 | |
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| 91 | class QSGRhiShaderEffectNode : public QSGShaderEffectNode |
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| 92 | { |
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| 93 | Q_OBJECT |
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| 94 | |
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| 95 | public: |
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| 96 | QSGRhiShaderEffectNode(QSGDefaultRenderContext *rc); |
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| 97 | |
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| 98 | QRectF updateNormalizedTextureSubRect(bool supportsAtlasTextures) override; |
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| 99 | void syncMaterial(SyncData *syncData) override; |
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| 100 | void preprocess() override; |
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| 101 | |
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| 102 | static void resetMaterialTypeCache(void *materialTypeCacheKey); |
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| 103 | static void garbageCollectMaterialTypeCache(void *materialTypeCacheKey); |
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| 104 | |
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| 105 | private Q_SLOTS: |
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| 106 | void handleTextureChange(); |
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| 107 | void handleTextureProviderDestroyed(QObject *object); |
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| 108 | |
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| 109 | private: |
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| 110 | QSGRhiShaderEffectMaterial m_material; |
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| 111 | }; |
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| 112 | |
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| 113 | class QSGRhiGuiThreadShaderEffectManager : public QSGGuiThreadShaderEffectManager |
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| 114 | { |
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| 115 | public: |
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| 116 | bool hasSeparateSamplerAndTextureObjects() const override; |
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| 117 | QString log() const override; |
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| 118 | Status status() const override; |
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| 119 | void prepareShaderCode(ShaderInfo::Type typeHint, const QUrl &src, ShaderInfo *result) override; |
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| 120 | |
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| 121 | private: |
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| 122 | bool reflect(ShaderInfo *result); |
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| 123 | Status m_status = Uncompiled; |
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| 124 | QFileSelector *m_fileSelector = nullptr; |
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| 125 | }; |
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| 126 | |
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| 127 | QT_END_NAMESPACE |
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| 128 | |
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| 129 | #endif // QSGRHISHADEREFFECTNODE_P_H |
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| 130 | |
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