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| |
| #ifndef QSSG_RENDER_SHADER_CODE_GENERATOR_H |
| #define QSSG_RENDER_SHADER_CODE_GENERATOR_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtQuick3DRender/private/qssgrenderbasetypes_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| typedef QPair<QByteArray, QByteArray> TParamPair; |
| typedef QPair<QByteArray, TParamPair> TConstantBufferParamPair; |
| typedef QVector<TConstantBufferParamPair> TConstantBufferParamArray; |
| typedef QHash<QByteArray, QByteArray> TStrTableStrMap; |
| |
| struct QSSGShaderCodeGeneratorBase |
| { |
| enum Enum { |
| Unknown = 0, |
| Lighting, |
| ViewVector, |
| WorldNormal, |
| WorldPosition, |
| EnvMapReflection, |
| UVCoords, |
| }; |
| QSet<quint32> m_codes; // set of enums we have included. |
| QSet<QByteArray> m_includes; |
| TStrTableStrMap m_uniforms; |
| TStrTableStrMap m_constantBuffers; |
| TConstantBufferParamArray m_constantBufferParams; |
| TStrTableStrMap m_attributes; |
| QByteArray m_finalShaderBuilder; |
| QByteArray m_codeBuilder; |
| QSSGRenderContextType m_renderContextType; |
| |
| QSSGShaderCodeGeneratorBase(const QSSGRenderContextType &ctxType); |
| virtual ~QSSGShaderCodeGeneratorBase(); |
| virtual TStrTableStrMap &getVaryings() = 0; |
| void begin(); |
| void append(const QByteArray &data); |
| // don't add the newline |
| void addConstantBuffer(const QByteArray &name, const QByteArray &layout); |
| void addConstantBufferParam(const QByteArray &cbName, const QByteArray ¶mName, const QByteArray &type); |
| void addUniform(const QByteArray &name, const QByteArray &type); |
| void addAttribute(const QByteArray &name, const QByteArray &type); |
| void addVarying(const QByteArray &name, const QByteArray &type); |
| void addLocalVariable(const QByteArray &name, const QByteArray &type, int tabCount = 1); |
| void addInclude(const QByteArray &name); |
| bool hasCode(Enum value); |
| void setCode(Enum value); |
| void setupWorldPosition(); |
| void generateViewVector(); |
| void generateWorldNormal(); |
| void generateEnvMapReflection(QSSGShaderCodeGeneratorBase &inFragmentShader); |
| void generateUVCoords(); |
| void generateTextureSwizzle(QSSGRenderTextureSwizzleMode swizzleMode, QByteArray &texSwizzle, QByteArray &lookupSwizzle); |
| void generateShadedWireframeBase(); |
| void addLighting(); |
| QByteArray buildShaderSource(); |
| QSSGShaderCodeGeneratorBase &operator<<(const QByteArray &data); |
| |
| protected: |
| virtual void addShaderItemMap(const QByteArray &itemType, const TStrTableStrMap &itemMap); |
| void addShaderConstantBufferItemMap(const QByteArray &itemType, const TStrTableStrMap &cbMap, TConstantBufferParamArray cbParamsArray); |
| }; |
| |
| struct QSSGShaderVertexCodeGenerator : public QSSGShaderCodeGeneratorBase |
| { |
| TStrTableStrMap m_varyings; |
| QSSGShaderVertexCodeGenerator(const QSSGRenderContextType &ctxType); |
| TStrTableStrMap &getVaryings() override; |
| }; |
| |
| struct QSSGShaderTessControlCodeGenerator : public QSSGShaderCodeGeneratorBase |
| { |
| QSSGShaderVertexCodeGenerator &m_vertGenerator; |
| TStrTableStrMap m_varyings; |
| QSSGShaderTessControlCodeGenerator(QSSGShaderVertexCodeGenerator &vert, const QSSGRenderContextType &ctxType); |
| |
| void addShaderItemMap(const QByteArray &itemType, const TStrTableStrMap &itemMap) override; |
| TStrTableStrMap &getVaryings() override; |
| }; |
| |
| struct QSSGShaderTessEvalCodeGenerator : public QSSGShaderCodeGeneratorBase |
| { |
| QSSGShaderTessControlCodeGenerator &m_tessControlGenerator; |
| bool m_hasGeometryStage = true; |
| |
| QSSGShaderTessEvalCodeGenerator(QSSGShaderTessControlCodeGenerator &tc, const QSSGRenderContextType &ctxType); |
| |
| void addShaderItemMap(const QByteArray &itemType, const TStrTableStrMap &itemMap) override; |
| TStrTableStrMap &getVaryings() override; |
| virtual void setGeometryStage(bool hasGeometryStage); |
| }; |
| |
| struct QSSGShaderGeometryCodeGenerator : public QSSGShaderCodeGeneratorBase |
| { |
| QSSGShaderVertexCodeGenerator &m_vertGenerator; |
| bool m_hasTessellationStage; |
| |
| QSSGShaderGeometryCodeGenerator(QSSGShaderVertexCodeGenerator &vert, const QSSGRenderContextType &ctxType); |
| |
| void addShaderItemMap(const QByteArray &itemType, const TStrTableStrMap &itemMap) override; |
| TStrTableStrMap &getVaryings() override; |
| virtual void setTessellationStage(bool hasTessellationStage); |
| }; |
| |
| struct QSSGShaderFragmentCodeGenerator : public QSSGShaderCodeGeneratorBase |
| { |
| QSSGShaderVertexCodeGenerator &m_vertGenerator; |
| QSSGShaderFragmentCodeGenerator(QSSGShaderVertexCodeGenerator &vert, const QSSGRenderContextType &ctxType); |
| TStrTableStrMap &getVaryings() override; |
| }; |
| QT_END_NAMESPACE |
| |
| #endif |