/// <summary> /// Initializes a new instance of the <see cref="ShaderMixinParser"/> class. /// </summary> public ShaderMixinParser(IVirtualFileProvider fileProvider) { SourceManager = new ShaderSourceManager(fileProvider); var shaderLoader = new ShaderLoader(SourceManager); if (shaderLibrary == null) { shaderLibrary = new XenkoShaderLibrary(shaderLoader); } // Create the clone context with the instances of Hlsl classes HlslSemanticAnalysis.FillCloneContext(hlslCloneContext); }
/// <summary> /// Mixes shader parts to produces a single HLSL file shader. /// </summary> /// <param name="shaderMixinSource">The shader source.</param> /// <param name="macros">The shader perprocessor macros.</param> /// <param name="modifiedShaders">The list of modified shaders.</param> /// <returns>The combined shader in AST form.</returns> public ShaderMixinParsingResult Parse(ShaderMixinSource shaderMixinSource, Stride.Shaders.ShaderMacro[] macros = null) { // Make in-memory shader classes known to the source manager foreach (var x in shaderMixinSource.Mixins.OfType <ShaderClassString>()) { SourceManager.AddShaderSource(x.ClassName, x.ShaderSourceCode, x.ClassName); } // Creates a parsing result HashSet <ModuleMixinInfo> mixinsToAnalyze; ShaderMixinParsingResult parsingResult; var context = ParseAndAnalyze(shaderMixinSource, macros, out parsingResult, out mixinsToAnalyze); // Return directly if there was any errors if (parsingResult.HasErrors) { return(parsingResult); } // Update the clone context in case new instances of classes are created CloneContext mixCloneContext; lock (hlslCloneContextLock) { if (hlslCloneContext == null) { hlslCloneContext = new CloneContext(); // Create the clone context with the instances of Hlsl classes HlslSemanticAnalysis.FillCloneContext(hlslCloneContext); } HlslSemanticAnalysis.UpdateCloneContext(hlslCloneContext); mixCloneContext = new CloneContext(hlslCloneContext); } // only clone once the stage classes foreach (var mixinInfo in mixinsToAnalyze) { foreach (var mixin in mixinInfo.Mixin.MinimalContext.Where(x => x.StageOnlyClass)) { mixin.DeepClone(mixCloneContext); } } // ---------------------------------------------------------- // Perform Shader Mixer // ---------------------------------------------------------- var externDict = new CompositionDictionary(); var finalModuleList = BuildCompositionsDictionary(shaderMixinSource, externDict, context, mixCloneContext, parsingResult); //PerformanceLogger.Stop(PerformanceStage.DeepClone); if (parsingResult.HasErrors) { return(parsingResult); } // look for stage compositions and add the links between variables and compositions when necessary var extraExternDict = new Dictionary <Variable, List <ModuleMixin> >(); foreach (var item in externDict) { if (item.Key.Qualifiers.Contains(StrideStorageQualifier.Stage)) { FullLinkStageCompositions(item.Key, item.Value, externDict, extraExternDict, parsingResult); } } foreach (var item in extraExternDict) { externDict.Add(item.Key, item.Value); } var mixinDictionary = BuildMixinDictionary(finalModuleList); if (finalModuleList != null) { var finalModule = finalModuleList[0]; //PerformanceLogger.Start(PerformanceStage.Mix); parsingResult.Reflection = new EffectReflection(); var mixer = new StrideShaderMixer(finalModule, parsingResult, mixinDictionary, externDict, new CloneContext(mixCloneContext)); mixer.Mix(); //PerformanceLogger.Stop(PerformanceStage.Mix); // Return directly if there was any errors if (parsingResult.HasErrors) { return(parsingResult); } var finalShader = mixer.GetMixedShader(); // Simplifies the shader by removing dead code var simplifier = new ExpressionSimplifierVisitor(); simplifier.Run(finalShader); var sdShaderLinker = new ShaderLinker(parsingResult); sdShaderLinker.Run(finalShader); // Return directly if there was any errors if (parsingResult.HasErrors) { return(parsingResult); } // Find all entry points // TODO: make this configurable by CompileParameters foreach (var stage in new[] { ShaderStage.Compute, ShaderStage.Vertex, ShaderStage.Hull, ShaderStage.Domain, ShaderStage.Geometry, ShaderStage.Pixel }) { var entryPoint = finalShader.Declarations.OfType <MethodDefinition>().FirstOrDefault(f => f.Attributes.OfType <AttributeDeclaration>().Any(a => a.Name == "EntryPoint" && (string)a.Parameters[0].Value == stage.ToString())); if (entryPoint == null) { continue; } parsingResult.EntryPoints[stage] = entryPoint.Name.Text; // When this is a compute shader, there is no need to scan other stages if (stage == ShaderStage.Compute) { break; } } var typeCleaner = new StrideShaderCleaner(); typeCleaner.Run(finalShader); //PerformanceLogger.Stop(PerformanceStage.Global); //PerformanceLogger.PrintLastResult(); //SemanticPerformance.PrintResult(); //MixPerformance.PrintResult(); //GenerateShaderPerformance.PrintResult(); //StreamCreatorPerformance.PrintResult(); //ShaderLoader.PrintTime(); //PerformanceLogger.WriteOut(52); parsingResult.Shader = finalShader; } return(parsingResult); }