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const string & | getTarget () const override |
| Return a unique identifier for the target this generator is for. More...
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const string & | getVersion () const override |
| Return the version string for the ESSL version this generator is for. More...
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const string | getVertexDataPrefix (const VariableBlock &vertexData) const override |
| Determine the prefix of vertex data variables. More...
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ShaderPtr | generate (const string &name, ElementPtr element, GenContext &context) const override |
| Generate a shader starting from the given element, translating the element and all dependencies upstream into shader code. More...
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const string & | getTarget () const override |
| Return a unique identifier for the target this generator is for. More...
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virtual const string & | getVersion () const |
| Return the version string for the GLSL version this generator is for. More...
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void | emitFunctionDefinitions (const ShaderGraph &graph, GenContext &context, ShaderStage &stage) const override |
| Emit function definitions for all nodes. More...
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void | emitFunctionCalls (const ShaderGraph &graph, GenContext &context, ShaderStage &stage) const override |
| Emit all function calls constructing the shader body. More...
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void | emitVariableDeclaration (const ShaderPort *variable, const string &qualifier, GenContext &context, ShaderStage &stage, bool assignValue=true) const override |
| Emit a shader variable. More...
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virtual const string | getVertexDataPrefix (const VariableBlock &vertexData) const |
| Determine the prefix of vertex data variables. More...
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void | emitFunctionCall (const ShaderNode &node, GenContext &context, ShaderStage &stage, bool checkScope=true) const override |
| Add the function call for a single node. More...
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virtual void | emitTextureNodes (const ShaderGraph &graph, GenContext &context, ShaderStage &stage) const |
| Emit code for all texturing nodes.
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virtual void | emitBsdfNodes (const ShaderGraph &graph, const ShaderNode &shaderNode, HwClosureContextPtr ccx, GenContext &context, ShaderStage &stage, string &bsdf) const |
| Emit code for calculating BSDF response for a shader, given the incident and outgoing light directions. More...
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virtual void | emitEdfNodes (const ShaderGraph &graph, const ShaderNode &shaderNode, HwClosureContextPtr ccx, GenContext &context, ShaderStage &stage, string &edf) const |
| Emit code for calculating emission for a surface or light shader, given the normal direction of the EDF and the evaluation direction. More...
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virtual void | addStageLightingUniforms (GenContext &context, ShaderStage &stage) const |
| Emit code for active light count definitions and uniforms.
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void | getNodeClosureContexts (const ShaderNode &node, vector< HwClosureContextPtr > &ccx) const |
| Return the closure contexts defined for the given node.
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virtual | ~ShaderGenerator () |
| Destructor.
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virtual const string & | getTarget () const =0 |
| Return the name of the target this generator is for. More...
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virtual ShaderPtr | generate (const string &name, ElementPtr element, GenContext &context) const =0 |
| Generate a shader starting from the given element, translating the element and all dependencies upstream into shader code. More...
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virtual void | emitScopeBegin (ShaderStage &stage, Syntax::Punctuation punc=Syntax::CURLY_BRACKETS) const |
| Start a new scope using the given bracket type.
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virtual void | emitScopeEnd (ShaderStage &stage, bool semicolon=false, bool newline=true) const |
| End the current scope.
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virtual void | emitLineBegin (ShaderStage &stage) const |
| Start a new line.
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virtual void | emitLineEnd (ShaderStage &stage, bool semicolon=true) const |
| End the current line.
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virtual void | emitLineBreak (ShaderStage &stage) const |
| Add a line break.
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virtual void | emitString (const string &str, ShaderStage &stage) const |
| Add a string.
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virtual void | emitLine (const string &str, ShaderStage &stage, bool semicolon=true) const |
| Add a single line of code, optionally appending a semicolon.
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virtual void | emitComment (const string &str, ShaderStage &stage) const |
| Add a single line code comment.
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virtual void | emitBlock (const string &str, GenContext &context, ShaderStage &stage) const |
| Add a block of code.
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virtual void | emitInclude (const string &file, GenContext &context, ShaderStage &stage) const |
| Add the contents of an include file. More...
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template<typename T > |
void | emitValue (const T &value, ShaderStage &stage) const |
| Add a value.
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virtual void | emitFunctionDefinition (const ShaderNode &node, GenContext &context, ShaderStage &stage) const |
| Add the function definition for a single node.
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virtual void | emitFunctionCall (const ShaderNode &node, GenContext &context, ShaderStage &stage, bool checkScope=true) const |
| Add the function call for a single node. More...
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virtual void | emitFunctionDefinitions (const ShaderGraph &graph, GenContext &context, ShaderStage &stage) const |
| Add all function definitions for a graph. More...
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virtual void | emitFunctionCalls (const ShaderGraph &graph, GenContext &context, ShaderStage &stage) const |
| Add all function calls for a graph. More...
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virtual void | emitTypeDefinitions (GenContext &context, ShaderStage &stage) const |
| Emit type definitions for all data types that needs it.
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virtual void | emitInput (const ShaderInput *input, GenContext &context, ShaderStage &stage) const |
| Emit the connected variable name for an input, or constant value if the port is not connected.
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virtual void | emitOutput (const ShaderOutput *output, bool includeType, bool assignValue, GenContext &context, ShaderStage &stage) const |
| Emit the output variable name for an output, optionally including it's type and default value assignment.
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virtual void | emitVariableDeclarations (const VariableBlock &block, const string &qualifier, const string &separator, GenContext &context, ShaderStage &stage, bool assignValue=true) const |
| Emit definitions for all shader variables in a block. More...
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virtual void | emitVariableDeclaration (const ShaderPort *variable, const string &qualifier, GenContext &context, ShaderStage &stage, bool assignValue=true) const |
| Emit definition of a single shader variable. More...
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virtual string | getUpstreamResult (const ShaderInput *input, GenContext &context) const |
| Return the result of an upstream connection or value for an input. More...
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const Syntax & | getSyntax () const |
| Return the syntax object for the language used by the code generator.
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void | registerImplementation (const string &name, CreatorFunction< ShaderNodeImpl > creator) |
| Register a shader node implementation for a given implementation element name.
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bool | implementationRegistered (const string &name) const |
| Determine if a shader node implementation has been registered for a given implementation element name.
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void | setColorManagementSystem (ColorManagementSystemPtr colorManagementSystem) |
| Sets the color management system.
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ColorManagementSystemPtr | getColorManagementSystem () const |
| Returns the color management system.
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void | setUnitSystem (UnitSystemPtr unitSystem) |
| Sets the unit system.
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UnitSystemPtr | getUnitSystem () const |
| Returns the unit system.
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ShaderNodeImplPtr | getImplementation (const InterfaceElement &element, GenContext &context) const |
| Return a registered shader node implementation given an implementation element. More...
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const StringMap & | getTokenSubstitutions () const |
| Return the map of token substitutions used by the generator.
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virtual void | registerShaderMetadata (const DocumentPtr &doc, GenContext &context) const |
| Register metadata that should be exported to the generated shaders. More...
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void | emitDirectives (GenContext &context, ShaderStage &stage) const override |
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void | emitUniforms (GenContext &context, ShaderStage &stage) const override |
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void | emitInputs (GenContext &context, ShaderStage &stage) const override |
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void | emitOutputs (GenContext &context, ShaderStage &stage) const override |
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HwResourceBindingContextPtr | getResourceBindingContext (GenContext &context) const override |
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virtual void | emitVertexStage (const ShaderGraph &graph, GenContext &context, ShaderStage &stage) const |
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virtual void | emitPixelStage (const ShaderGraph &graph, GenContext &context, ShaderStage &stage) const |
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virtual void | emitDirectives (GenContext &context, ShaderStage &stage) const |
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virtual void | emitConstants (GenContext &context, ShaderStage &stage) const |
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virtual void | emitUniforms (GenContext &context, ShaderStage &stage) const |
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virtual void | emitLightData (GenContext &context, ShaderStage &stage) const |
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virtual void | emitInputs (GenContext &context, ShaderStage &stage) const |
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virtual void | emitOutputs (GenContext &context, ShaderStage &stage) const |
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virtual HwResourceBindingContextPtr | getResourceBindingContext (GenContext &context) const |
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virtual bool | requiresLighting (const ShaderGraph &graph) const |
| Logic to indicate whether code to support direct lighting should be emitted. More...
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virtual void | emitSpecularEnvironment (GenContext &context, ShaderStage &stage) const |
| Emit specular environment lookup code.
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ShaderNodeImplPtr | createCompoundImplementation (const NodeGraph &impl) const override |
| Override the compound implementation creator in order to handle light compounds. More...
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| HwShaderGenerator (SyntaxPtr syntax) |
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virtual ShaderPtr | createShader (const string &name, ElementPtr element, GenContext &context) const |
| Create and initialize a new HW shader for shader generation.
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ShaderNodeImplPtr | createSourceCodeImplementation (const Implementation &impl) const override |
| Override the source code implementation creator. More...
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ShaderNodeImplPtr | createCompoundImplementation (const NodeGraph &impl) const override |
| Override the compound implementation creator. More...
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| ShaderGenerator (SyntaxPtr syntax) |
| Protected constructor.
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virtual ShaderStagePtr | createStage (const string &name, Shader &shader) const |
| Create a new stage in a shader.
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virtual ShaderNodeImplPtr | createSourceCodeImplementation (const Implementation &impl) const |
| Create a source code implementation which is the implementation class to use for nodes that has no specific C++ implementation registered for it. More...
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virtual ShaderNodeImplPtr | createCompoundImplementation (const NodeGraph &impl) const |
| Create a compound implementation which is the implementation class to use for nodes using a nodegraph as their implementation. More...
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virtual void | finalizeShaderGraph (ShaderGraph &graph) |
| Method called on all created shader graphs. More...
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void | setFunctionName (const string &functionName, ShaderStage &stage) const |
| Set function name for a stage.
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void | replaceTokens (const StringMap &substitutions, ShaderStage &stage) const |
| Replace tokens with identifiers according to the given substitutions map.
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An ESSL (OpenGL ES Shading Language) shader generator