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The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 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 57 QT_BEGIN_NAMESPACE 58 59 class QSGDefaultRenderContext; 60 class QSGPlainTexture; 61 class QSGRhiShaderEffectNode; 62 class QSGRhiGuiThreadShaderEffectManager; 63 class QFileSelector; 64 65 class QSGRhiShaderLinker 66 { 67 public: 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 95 QDebug operator<<(QDebug debug, const QSGRhiShaderLinker::Constant &c); 96 97 class QSGRhiShaderEffectMaterial : public QSGMaterial 98 { 99 public: 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 }; 123 124 class QSGRhiShaderEffectNode : public QObject, public QSGShaderEffectNode 125 { 126 Q_OBJECT 127 128 public: 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(); 136 137 private Q_SLOTS: 138 void handleTextureChange(); 139 void handleTextureProviderDestroyed(QObject *object); 140 141 private: 142 QSGDefaultRenderContext *m_rc; 143 QSGRhiGuiThreadShaderEffectManager *m_mgr; 144 QSGRhiShaderEffectMaterial m_material; 145 }; 146 147 class QSGRhiGuiThreadShaderEffectManager : public QSGGuiThreadShaderEffectManager 148 { 149 public: 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; 154 155 private: 156 bool reflect(ShaderInfo *result); 157 Status m_status = Uncompiled; 158 QFileSelector *m_fileSelector = nullptr; 159 }; 160 161 QT_END_NAMESPACE 162 163 #endif // QSGRHISHADEREFFECTNODE_P_H 164