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a03703a060
1) The node registry and METASOUND_REGISTER_NODE(FMyNodeType) 2) The datatype registry and REGISTER_METASOUND_DATATYPE(FMyDataType) (which I have to rename to METASOUND_REGISTER_DATATYPE) 3) Integration of literals, which are handled with FDataTypeLiteralParam and serialized out with FMetasoundLiteralDescription , and can be expanded to pass in a UObject*/TArray<UObject*> in the future 4) And finally, the full construction of an arbitrary graph to build operators out of in Metasound::Frontend::FGraphHandle::BuildOperator, which needs a sample rate/frame count per callback to work. #rb rob.gay, phil.popp [CL 13891250 by Ethan Geller in ue5-main branch]
1891 lines
61 KiB
C++
1891 lines
61 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "MetasoundFrontend.h"
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#include "Backends/JsonStructSerializerBackend.h"
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#include "StructSerializer.h"
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#include "HAL/FileManager.h"
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#include "HAL/IConsoleManager.h"
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#include "Modules/ModuleManager.h"
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#include "MetasoundAudioFormats.h"
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#include "MetasoundOperatorBuilder.h"
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static int32 MetasoundUndoRollLimitCvar = 128;
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FAutoConsoleVariableRef CVarMetasoundUndoRollLimit(
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TEXT("au.Metasound.Frontend.UndoRollLimit"),
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MetasoundUndoRollLimitCvar,
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TEXT("Sets the maximum size of our undo buffer for graph editing in the Metasound Frontend.\n")
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TEXT("n: Number of undoable actions we buffer."),
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ECVF_Default);
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namespace Metasound
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{
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namespace Frontend
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{
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TArray<FNodeClassInfo> GetAllAvailableNodeClasses()
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{
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TArray<FNodeClassInfo> OutClasses;
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auto& Registry = GetExternalNodeRegistry();
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for (auto& NodeClassTuple : Registry)
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{
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FNodeClassInfo ClassInfo;
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ClassInfo.NodeName = NodeClassTuple.Key.NodeName.ToString();
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ClassInfo.NodeType = EMetasoundClassType::External;
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ClassInfo.LookupKey = NodeClassTuple.Key;
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OutClasses.Add(ClassInfo);
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}
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return OutClasses;
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}
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TArray<FNodeClassInfo> GetAllNodeClassesInNamespace(const FString& InNamespace)
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{
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TArray<FNodeClassInfo> OutClasses;
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auto& Registry = GetExternalNodeRegistry();
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for (auto& NodeClassTuple : Registry)
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{
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// TODO: Build fname namespace tree. as we register nodes and types.
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// for now we just parse the string here.
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FString NodeName = NodeClassTuple.Key.NodeName.ToString();
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if (NodeName.StartsWith(InNamespace))
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{
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FNodeClassInfo ClassInfo;
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ClassInfo.NodeName = NodeName;
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ClassInfo.NodeType = EMetasoundClassType::External;
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ClassInfo.LookupKey = NodeClassTuple.Key;
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OutClasses.Add(ClassInfo);
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}
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}
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return OutClasses;
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}
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TArray<FNodeClassInfo> GetAllNodesWhoseNameContains(const FString& InSubstring)
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{
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TArray<FNodeClassInfo> OutClasses;
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auto& Registry = GetExternalNodeRegistry();
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for (auto& NodeClassTuple : Registry)
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{
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FString NodeName = NodeClassTuple.Key.NodeName.ToString();
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if (NodeName.Contains(InSubstring))
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{
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FNodeClassInfo ClassInfo;
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ClassInfo.NodeName = NodeName;
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ClassInfo.NodeType = EMetasoundClassType::External;
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ClassInfo.LookupKey = NodeClassTuple.Key;
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OutClasses.Add(ClassInfo);
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}
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}
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return OutClasses;
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}
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TArray<FNodeClassInfo> GetAllNodesWithAnOutputOfType(const FName& InType)
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{
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TArray<FNodeClassInfo> OutClasses;
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auto& Registry = GetExternalNodeRegistry();
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for (auto& NodeClassTuple : Registry)
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{
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if (NodeClassTuple.Value.OutputTypes.Contains(InType))
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{
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FNodeClassInfo ClassInfo;
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ClassInfo.NodeName = NodeClassTuple.Key.NodeName.ToString();
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ClassInfo.NodeType = EMetasoundClassType::External;
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ClassInfo.LookupKey = NodeClassTuple.Key;
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OutClasses.Add(ClassInfo);
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break;
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}
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}
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return OutClasses;
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}
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TArray<FNodeClassInfo> GetAllNodesWithAnInputOfType(const FName& InType)
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{
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TArray<FNodeClassInfo> OutClasses;
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auto& Registry = GetExternalNodeRegistry();
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for (auto& NodeClassTuple : Registry)
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{
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if (NodeClassTuple.Value.InputTypes.Contains(InType))
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{
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FNodeClassInfo ClassInfo;
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ClassInfo.NodeName = NodeClassTuple.Key.NodeName.ToString();
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ClassInfo.NodeType = EMetasoundClassType::External;
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ClassInfo.LookupKey = NodeClassTuple.Key;
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OutClasses.Add(ClassInfo);
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break;
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}
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}
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return OutClasses;
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}
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// gets all metadata (name, description, author, what to say if it's missing) for a given node.
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FMetasoundClassMetadata GenerateMetadataForNode(const FNodeClassInfo& InInfo)
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{
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return GenerateClassDescriptionForNode(InInfo).Metadata;
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}
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FMetasoundClassDescription GenerateClassDescriptionForNode(const FNodeClassInfo& InInfo)
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{
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FNodeInitData DummyInitData;
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DummyInitData.InstanceName = FString(TEXT("Unused node for registration"));
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auto& Registry = GetExternalNodeRegistry();
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if (Registry.Contains(InInfo.LookupKey))
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{
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TUniquePtr<Metasound::INode> DummyNode = Registry[InInfo.LookupKey].GetterCallback(DummyInitData);
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if (!ensureAlwaysMsgf(DummyNode.IsValid(), TEXT("Node class %s failed to return a valid node. Likely something is wrong with the METASOUND_REGISTER_NODE macro.")))
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{
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return FMetasoundClassDescription();
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}
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const FName NodeName = DummyNode->GetClassName();
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const FInputDataVertexCollection& Inputs = DummyNode->GetInputDataVertices();
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const FOutputDataVertexCollection& Outputs = DummyNode->GetOutputDataVertices();
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FMetasoundClassMetadata NodeMetadata;
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NodeMetadata.NodeName = NodeName.ToString();
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NodeMetadata.NodeType = EMetasoundClassType::External;
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NodeMetadata.AuthorName = DummyNode->GetAuthorName();
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NodeMetadata.MetasoundDescription = DummyNode->GetDescription();
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NodeMetadata.PromptIfMissing = DummyNode->GetPromptIfMissing();
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FMetasoundClassDescription ClassDescription;
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ClassDescription.Metadata = NodeMetadata;
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// External metasounds aren't dependent on any other nodes by definition, so all we need to do
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// is populate the Input and Output sets.
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for (auto& InputTuple : Inputs)
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{
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FMetasoundInputDescription InputDescription;
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InputDescription.Name = InputTuple.Value.VertexName;
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InputDescription.TypeName = InputTuple.Value.DataReferenceTypeName;
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InputDescription.ToolTip = InputTuple.Value.Description;
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ClassDescription.Inputs.Add(InputDescription);
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}
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for (auto& OutputTuple : Outputs)
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{
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FMetasoundOutputDescription OutputDescription;
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OutputDescription.Name = OutputTuple.Value.VertexName;
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OutputDescription.TypeName = OutputTuple.Value.DataReferenceTypeName;
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OutputDescription.ToolTip = OutputTuple.Value.Description;
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ClassDescription.Outputs.Add(OutputDescription);
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}
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// Populate lookup data.
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ClassDescription.ExternalNodeClassLookupInfo.ExternalNodeClassName = InInfo.LookupKey.NodeName;
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ClassDescription.ExternalNodeClassLookupInfo.ExternalNodeClassHash = InInfo.LookupKey.NodeHash;
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return ClassDescription;
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}
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else
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{
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ensureAlwaysMsgf(false, TEXT("Tried to get Class Description for unknown node %s!"), *InInfo.NodeName);
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return FMetasoundClassDescription();
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}
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}
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TArray<FName> GetAllAvailableDataTypes()
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{
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return FMetasoundFrontendRegistryContainer::Get()->GetAllValidDataTypes();
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}
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bool GetTraitsForDataType(FName InDataType, FDataTypeRegistryInfo& OutInfo)
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{
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return FMetasoundFrontendRegistryContainer::Get()->GetInfoForDataType(InDataType, OutInfo);
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}
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FInputHandle::FInputHandle(FHandleInitParams::EPrivateToken PrivateToken, const FHandleInitParams& InParams, const FString& InputName)
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: ITransactable(MetasoundUndoRollLimitCvar, InParams.InOwningAsset)
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, NodePtr(InParams.InAccessPoint, InParams.InPath)
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, NodeClass(InParams.InAccessPoint, Path::GetDependencyPath(InParams.InClassName))
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, InputPtr(InParams.InAccessPoint, NodeClass.GetPath()[Path::EFromClass::ToInputs][*InputName])
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, OutputNodePtr(nullptr, FDescPath())
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{
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if (InParams.InAccessPoint.IsValid())
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{
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// Test both pointers to the graph and it's owning class description.
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ensureAlwaysMsgf(NodePtr.IsValid() && NodeClass.IsValid() && InputPtr.IsValid(), TEXT("Tried to build FGraphHandle with Invalid Path: %s"), *Path::GetPrintableString(InParams.InPath));
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}
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}
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FInputHandle::FInputHandle(FHandleInitParams::EPrivateToken PrivateToken, const FHandleInitParams& InParams)
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: ITransactable(MetasoundUndoRollLimitCvar, InParams.InOwningAsset)
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, NodePtr(InParams.InAccessPoint, InParams.InPath)
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, NodeClass(nullptr, FDescPath())
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, InputPtr(nullptr, FDescPath())
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, OutputNodePtr(InParams.InAccessPoint, Path::GetOutputDescriptionPath(InParams.InPath, InParams.InClassName))
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{
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if (InParams.InAccessPoint.IsValid())
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{
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// Test both pointers to the graph and it's owning class description.
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ensureAlwaysMsgf(NodePtr.IsValid() && OutputNodePtr.IsValid(), TEXT("Tried to build FGraphHandle with Invalid Path: %s"), *Path::GetPrintableString(InParams.InPath));
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}
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}
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FInputHandle FInputHandle::InvalidHandle()
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{
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FDescPath NullPath = FDescPath();
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FString NullString = FString();
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FHandleInitParams InitParams = { nullptr, NullPath , NullString, nullptr };
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return FInputHandle(FHandleInitParams::PrivateToken, InitParams, NullString);
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}
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bool FInputHandle::IsValid() const
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{
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return (NodePtr.IsValid() && NodeClass.IsValid() && InputPtr.IsValid())
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|| (NodePtr.IsValid() && OutputNodePtr.IsValid());
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}
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bool FInputHandle::IsConnected() const
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{
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if (!IsValid())
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{
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return false;
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}
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const FMetasoundNodeConnectionDescription* Connection = GetConnectionDescription();
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if (Connection)
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{
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return Connection->NodeID != FMetasoundNodeConnectionDescription::DisconnectedNodeID;
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}
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else
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{
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return false;
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}
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}
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FName FInputHandle::GetInputType() const
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{
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if (!IsValid())
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{
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return FName();
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}
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if (InputPtr.IsValid())
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{
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return InputPtr->TypeName;
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}
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else if (OutputNodePtr.IsValid())
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{
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return OutputNodePtr->TypeName;
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}
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else
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{
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checkNoEntry();
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return FName();
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}
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}
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FString FInputHandle::GetInputName() const
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{
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if (!IsValid())
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{
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return FString();
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}
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if (InputPtr.IsValid())
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{
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return InputPtr->Name;
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}
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else if (OutputNodePtr.IsValid())
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{
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return OutputNodePtr->Name;
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}
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else
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{
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checkNoEntry();
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return FString();
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}
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}
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FText FInputHandle::GetInputTooltip() const
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{
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if (!IsValid())
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{
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return FText();
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}
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if (InputPtr.IsValid())
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{
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return InputPtr->ToolTip;
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}
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else if (OutputNodePtr.IsValid())
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{
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return OutputNodePtr->ToolTip;
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}
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else
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{
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checkNoEntry();
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return FText();
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}
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}
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FOutputHandle FInputHandle::GetCurrentlyConnectedOutput() const
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{
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if (!IsValid())
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{
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return FOutputHandle::InvalidHandle();
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}
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if (!IsConnected())
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{
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return FOutputHandle::InvalidHandle();
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}
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const FMetasoundNodeConnectionDescription* Connection = GetConnectionDescription();
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check(Connection);
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FString OutputName = Connection->OutputName;
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uint32 OutputNodeID = Connection->NodeID;
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// All node connections are in the same graph, so we just need to go up one level to the Nodes array
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// and look up the node by it's unique ID.
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FDescPath OutputNodePath = (NodePtr.GetPath() << 1)[OutputNodeID];
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if (NodeClass.IsValid())
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{
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FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), OutputNodePath, NodeClass->Metadata.NodeName, OwningAsset };
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return FOutputHandle(FHandleInitParams::PrivateToken, InitParams, OutputName);
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}
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else if (OutputNodePtr.IsValid())
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{
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FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), OutputNodePath, OutputNodePtr->Name, OwningAsset };
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return FOutputHandle(FHandleInitParams::PrivateToken, InitParams, OutputName);
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}
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else
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{
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checkNoEntry();
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return FOutputHandle::InvalidHandle();
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}
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}
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FConnectability FInputHandle::CanConnectTo(const FOutputHandle& InHandle) const
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{
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FConnectability OutConnectability;
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OutConnectability.Connectable = FConnectability::EConnectable::No;
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if (InHandle.GetOutputType() == GetInputType())
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{
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OutConnectability.Connectable = FConnectability::EConnectable::Yes;
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return OutConnectability;
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}
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//@todo: scan for possible converter nodes here. (UEAU-473)
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return OutConnectability;
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}
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bool FInputHandle::Connect(FOutputHandle& InHandle)
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{
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if (!IsValid() || !InHandle.IsValid())
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{
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return false;
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}
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if (!ensureAlwaysMsgf(InHandle.GetOutputType() == GetInputType(), TEXT("Tried to connect incompatible types!")))
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{
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return false;
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}
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uint32 OutputNodeID = InHandle.GetOwningNodeID();
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FString OutputName = InHandle.GetOutputName();
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FMetasoundNodeConnectionDescription* Connection = GetConnectionDescription();
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if (!Connection)
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{
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TArray<FMetasoundNodeConnectionDescription>& Connections = NodePtr->InputConnections;
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FMetasoundNodeConnectionDescription NewConnection;
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NewConnection.InputName = GetInputName();
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Connection = &Connections.Add_GetRef(NewConnection);
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}
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Connection->NodeID = OutputNodeID;
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Connection->OutputName = OutputName;
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return true;
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}
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bool FInputHandle::ConnectWithConverterNode(FOutputHandle& InHandle, FString& InNodeClassName)
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{
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// (UEAU-473)
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ensureAlwaysMsgf(false, TEXT("Implement me!"));
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return false;
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}
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const FMetasoundNodeConnectionDescription* FInputHandle::GetConnectionDescription() const
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{
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if (!IsValid())
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{
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return nullptr;
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}
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const TArray<FMetasoundNodeConnectionDescription>& Connections = NodePtr->InputConnections;
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for (const FMetasoundNodeConnectionDescription& Connection : Connections)
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{
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if (Connection.InputName == GetInputName())
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{
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return &Connection;
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}
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}
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return nullptr;
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}
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FMetasoundNodeConnectionDescription* FInputHandle::GetConnectionDescription()
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{
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if (!IsValid())
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{
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return nullptr;
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}
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TArray<FMetasoundNodeConnectionDescription>& Connections = NodePtr->InputConnections;
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for (FMetasoundNodeConnectionDescription& Connection : Connections)
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{
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if (Connection.InputName == GetInputName())
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{
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return &Connection;
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}
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}
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return nullptr;
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}
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FOutputHandle::FOutputHandle(FHandleInitParams::EPrivateToken InToken /* unused */, const FHandleInitParams& InParams, const FString& InOutputName)
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: ITransactable(MetasoundUndoRollLimitCvar, InParams.InOwningAsset)
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, NodePtr(InParams.InAccessPoint, InParams.InPath)
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, NodeClass(InParams.InAccessPoint, Path::GetDependencyPath(InParams.InClassName))
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, OutputPtr(InParams.InAccessPoint, NodeClass.GetPath()[Path::EFromClass::ToOutputs][*InOutputName])
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, InputNodePtr(nullptr, FDescPath())
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{
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if (InParams.InAccessPoint.IsValid())
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{
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// Test both pointers to the graph and it's owning class description.
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ensureAlwaysMsgf(NodePtr.IsValid() && NodeClass.IsValid() && OutputPtr.IsValid(), TEXT("Tried to build FGraphHandle with Invalid Path: %s"), *Path::GetPrintableString(InParams.InPath));
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}
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}
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FOutputHandle::FOutputHandle(FHandleInitParams::EPrivateToken InToken, const FHandleInitParams& InParams)
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: ITransactable(MetasoundUndoRollLimitCvar, InParams.InOwningAsset)
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, NodePtr(InParams.InAccessPoint, InParams.InPath)
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, NodeClass(nullptr, FDescPath())
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, OutputPtr(nullptr, FDescPath())
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, InputNodePtr(InParams.InAccessPoint, Path::GetInputDescriptionPath(InParams.InPath, InParams.InClassName))
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{
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if (InParams.InAccessPoint.IsValid())
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{
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// Test both pointers to the graph and it's owning class description.
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ensureAlwaysMsgf(NodePtr.IsValid() && InputNodePtr.IsValid(), TEXT("Tried to build FGraphHandle with Invalid Path: %s"), *Path::GetPrintableString(InParams.InPath));
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}
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}
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FOutputHandle FOutputHandle::InvalidHandle()
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{
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FString NullString;
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FDescPath NullPath;
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FHandleInitParams InitParams = { nullptr, NullPath, NullString, nullptr };
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return FOutputHandle(FHandleInitParams::PrivateToken, InitParams, NullString);
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}
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bool FOutputHandle::IsValid() const
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{
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return (NodePtr.IsValid() && NodeClass.IsValid() && OutputPtr.IsValid())
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|| (NodePtr.IsValid() && InputNodePtr.IsValid());
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}
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FName FOutputHandle::GetOutputType() const
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{
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if (!IsValid())
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{
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return FName();
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}
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if (OutputPtr.IsValid())
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{
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return OutputPtr->TypeName;
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}
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else if (InputNodePtr.IsValid())
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{
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return InputNodePtr->TypeName;
|
|
}
|
|
else
|
|
{
|
|
checkNoEntry();
|
|
return FName();
|
|
}
|
|
}
|
|
|
|
FString FOutputHandle::GetOutputName() const
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FString();
|
|
}
|
|
|
|
if (OutputPtr.IsValid())
|
|
{
|
|
return OutputPtr->Name;
|
|
}
|
|
else if (InputNodePtr.IsValid())
|
|
{
|
|
return InputNodePtr->Name;
|
|
}
|
|
else
|
|
{
|
|
checkNoEntry();
|
|
return FString();
|
|
}
|
|
}
|
|
|
|
FText FOutputHandle::GetOutputTooltip() const
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FText();
|
|
}
|
|
|
|
if (OutputPtr.IsValid())
|
|
{
|
|
return OutputPtr->ToolTip;
|
|
}
|
|
else if (InputNodePtr.IsValid())
|
|
{
|
|
return InputNodePtr->ToolTip;
|
|
}
|
|
else
|
|
{
|
|
checkNoEntry();
|
|
return FText();
|
|
}
|
|
}
|
|
|
|
uint32 FOutputHandle::GetOwningNodeID() const
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
return NodePtr->UniqueID;
|
|
}
|
|
|
|
FConnectability FOutputHandle::CanConnectTo(const FInputHandle& InHandle) const
|
|
{
|
|
return InHandle.CanConnectTo(*this);
|
|
}
|
|
|
|
bool FOutputHandle::Connect(FInputHandle& InHandle)
|
|
{
|
|
if (!IsValid() || !InHandle.IsValid())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return InHandle.Connect(*this);
|
|
}
|
|
|
|
bool FOutputHandle::ConnectWithConverterNode(FInputHandle& InHandle, FString& InNodeClassName)
|
|
{
|
|
return InHandle.ConnectWithConverterNode(*this, InNodeClassName);
|
|
}
|
|
|
|
FNodeHandle::FNodeHandle(FHandleInitParams::EPrivateToken PrivateToken, const FHandleInitParams& InParams, EMetasoundClassType InNodeClassType)
|
|
: ITransactable(MetasoundUndoRollLimitCvar, InParams.InOwningAsset)
|
|
, NodePtr(InParams.InAccessPoint, InParams.InPath)
|
|
, NodeClass(InParams.InAccessPoint, Path::GetDependencyPath(InParams.InClassName))
|
|
, NodeClassType(InNodeClassType)
|
|
{
|
|
if (InParams.InAccessPoint.IsValid())
|
|
{
|
|
// Test both pointers to the graph and it's owning class description.
|
|
ensureAlwaysMsgf(IsValid(), TEXT("Tried to build FGraphHandle with Invalid Path: %s"), *Path::GetPrintableString(InParams.InPath));
|
|
}
|
|
}
|
|
|
|
FNodeHandle FNodeHandle::InvalidHandle()
|
|
{
|
|
FDescPath InvalidPath;
|
|
FString InvalidClassName;
|
|
FHandleInitParams InitParams = { nullptr, InvalidPath, InvalidClassName, nullptr };
|
|
return FNodeHandle(FHandleInitParams::PrivateToken, InitParams, EMetasoundClassType::Invalid);
|
|
}
|
|
|
|
bool FNodeHandle::IsValid() const
|
|
{
|
|
const bool bNeedsNodeClass = NodeClassType == EMetasoundClassType::External || NodeClassType == EMetasoundClassType::MetasoundGraph;
|
|
return NodePtr.IsValid() && (!bNeedsNodeClass || NodeClass.IsValid());
|
|
}
|
|
|
|
TArray<FInputHandle> FNodeHandle::GetAllInputs()
|
|
{
|
|
TArray<FInputHandle> OutArray;
|
|
|
|
if (!IsValid() || NodeClassType == EMetasoundClassType::Input)
|
|
{
|
|
return OutArray;
|
|
}
|
|
|
|
if (NodeClassType == EMetasoundClassType::Output)
|
|
{
|
|
// Output nodes only have one input- the outgoing parameter.
|
|
FDescPath NodePath = NodePtr.GetPath();
|
|
|
|
const FString& NodeClassName = NodePtr->Name;
|
|
|
|
FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), NodePath, NodeClassName, OwningAsset };
|
|
OutArray.Emplace(FHandleInitParams::PrivateToken, InitParams);
|
|
}
|
|
else
|
|
{
|
|
// Iterate over our input descriptions and emplace a new handle for each of them.
|
|
|
|
TArray<FMetasoundInputDescription>& InputDescriptions = NodeClass->Inputs;
|
|
for (FMetasoundInputDescription& InputDescription : InputDescriptions)
|
|
{
|
|
FDescPath NodePath = NodePtr.GetPath();
|
|
FString ClassName = GetNodeClassName();
|
|
FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), NodePath, ClassName, OwningAsset };
|
|
OutArray.Emplace(FHandleInitParams::PrivateToken, InitParams, InputDescription.Name);
|
|
}
|
|
}
|
|
|
|
return OutArray;
|
|
}
|
|
|
|
TArray<FOutputHandle> FNodeHandle::GetAllOutputs()
|
|
{
|
|
TArray<FOutputHandle> OutArray;
|
|
|
|
if (!IsValid() || NodeClassType == EMetasoundClassType::Output)
|
|
{
|
|
return OutArray;
|
|
}
|
|
|
|
if (NodeClassType == EMetasoundClassType::Input)
|
|
{
|
|
// Input nodes nodes only have one output- the incoming parameter.
|
|
FDescPath NodePath = NodePtr.GetPath();
|
|
|
|
const FString& NodeClassName = NodePtr->Name;
|
|
|
|
FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), NodePath, NodeClassName, OwningAsset };
|
|
OutArray.Emplace(FHandleInitParams::PrivateToken, InitParams);
|
|
}
|
|
else
|
|
{
|
|
TArray<FMetasoundOutputDescription>& OutputDescriptions = NodeClass->Outputs;
|
|
|
|
for (FMetasoundOutputDescription& OutputDescription : OutputDescriptions)
|
|
{
|
|
FDescPath NodePath = NodePtr.GetPath();
|
|
FString NodeClassName = GetNodeClassName();
|
|
FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), NodePath, NodeClassName, OwningAsset };
|
|
OutArray.Emplace(FHandleInitParams::PrivateToken, InitParams, OutputDescription.Name);
|
|
}
|
|
}
|
|
|
|
return OutArray;
|
|
}
|
|
|
|
FInputHandle FNodeHandle::GetInputWithName(const FString& InName)
|
|
{
|
|
if (!IsValid() || NodeClassType == EMetasoundClassType::Input)
|
|
{
|
|
return FInputHandle::InvalidHandle();
|
|
}
|
|
|
|
if (NodeClassType == EMetasoundClassType::Output)
|
|
{
|
|
const FString& NodeClassName = NodePtr->Name;
|
|
ensureAlwaysMsgf(InName == NodeClassName, TEXT("An output node's input connection should always be the same as it's class name!"));
|
|
|
|
FDescPath NodePath = NodePtr.GetPath();
|
|
FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), NodePath, NodeClassName , OwningAsset };
|
|
return FInputHandle(FHandleInitParams::PrivateToken, InitParams);
|
|
}
|
|
|
|
TArray<FMetasoundInputDescription>& InputDescriptions = NodeClass->Inputs;
|
|
|
|
for (FMetasoundInputDescription& InputDescription : InputDescriptions)
|
|
{
|
|
if (InputDescription.Name == InName)
|
|
{
|
|
FString ClassName = GetNodeClassName();
|
|
FDescPath NodePath = NodePtr.GetPath();
|
|
FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), NodePath, ClassName, OwningAsset };
|
|
return FInputHandle(FHandleInitParams::PrivateToken, InitParams, InputDescription.Name);
|
|
}
|
|
}
|
|
|
|
ensureAlwaysMsgf(false, TEXT("Couldn't find an input with this name on this node!"));
|
|
return FInputHandle::InvalidHandle();
|
|
}
|
|
|
|
FOutputHandle FNodeHandle::GetOutputWithName(const FString& InName)
|
|
{
|
|
if (!IsValid() || NodeClassType == EMetasoundClassType::Output)
|
|
{
|
|
return FOutputHandle::InvalidHandle();
|
|
}
|
|
|
|
// all input nodes have one connectable output, which is the input param they represent.
|
|
if (NodeClassType == EMetasoundClassType::Input)
|
|
{
|
|
const FString& NodeClassName = NodePtr->Name;
|
|
ensureAlwaysMsgf(InName == NodeClassName, TEXT("An input node's output connection should always be the same as it's class name!"));
|
|
FDescPath NodePath = NodePtr.GetPath();
|
|
FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), NodePath, NodeClassName , OwningAsset };
|
|
return FOutputHandle(FHandleInitParams::PrivateToken, InitParams);
|
|
}
|
|
|
|
TArray<FMetasoundOutputDescription>& OutputDescriptions = NodeClass->Outputs;
|
|
|
|
for (FMetasoundOutputDescription& OutputDescription : OutputDescriptions)
|
|
{
|
|
if (OutputDescription.Name == InName)
|
|
{
|
|
FString NodeClassName = GetNodeClassName();
|
|
FDescPath NodePath = NodePtr.GetPath();
|
|
FHandleInitParams InitParams = { NodePtr.GetAccessPoint(), NodePath, NodeClassName , OwningAsset };
|
|
return FOutputHandle(FHandleInitParams::PrivateToken, InitParams, OutputDescription.Name);
|
|
}
|
|
}
|
|
|
|
ensureAlwaysMsgf(false, TEXT("Couldn't find an output with this name on this node!"));
|
|
return FOutputHandle::InvalidHandle();
|
|
}
|
|
|
|
EMetasoundClassType FNodeHandle::GetNodeType() const
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return EMetasoundClassType::Invalid;
|
|
}
|
|
|
|
return NodeClass->Metadata.NodeType;
|
|
}
|
|
|
|
const FString& FNodeHandle::GetNodeClassName() const
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
static const FString DefaultClassName;
|
|
return DefaultClassName;
|
|
}
|
|
|
|
return NodeClass->Metadata.NodeName;
|
|
}
|
|
|
|
void FNodeHandle::GetContainedGraph(FGraphHandle& OutGraph)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
OutGraph = FGraphHandle::InvalidHandle();
|
|
}
|
|
|
|
if (!ensureAlwaysMsgf(GetNodeType() == EMetasoundClassType::MetasoundGraph, TEXT("Tried to get the Metasound Graph for a node that was not a Metasound graph.")))
|
|
{
|
|
OutGraph = FGraphHandle::InvalidHandle();
|
|
}
|
|
|
|
FDescPath ContainedGraphPath = NodeClass.GetPath()[Path::EFromClass::ToGraph];
|
|
FHandleInitParams InitParams = { NodeClass.GetAccessPoint(), ContainedGraphPath, NodeClass->Metadata.NodeName, OwningAsset };
|
|
// Todo: link this up to look for externally implemented graphs as well.
|
|
OutGraph = FGraphHandle(FHandleInitParams::PrivateToken, InitParams);
|
|
}
|
|
|
|
uint32 FNodeHandle::GetNodeID() const
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
return NodePtr->UniqueID;
|
|
}
|
|
|
|
uint32 FNodeHandle::GetNodeID(const FDescPath& InNodePath)
|
|
{
|
|
if (!ensureAlwaysMsgf(InNodePath.Path.Num() != 0, TEXT("Tried to get a node ID from an empty path.")))
|
|
{
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
const Path::FElement& LastElementInPath = InNodePath.Path.Last();
|
|
|
|
if (!ensureAlwaysMsgf(LastElementInPath.CurrentDescType == Path::EDescType::Node, TEXT("Tried to get the node ID for a path that was not set up for a node.")))
|
|
{
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
return LastElementInPath.LookupID;
|
|
}
|
|
|
|
FGraphHandle::FGraphHandle(FHandleInitParams::EPrivateToken PrivateToken, const FHandleInitParams& InParams)
|
|
: ITransactable(MetasoundUndoRollLimitCvar, InParams.InOwningAsset)
|
|
, GraphPtr(InParams.InAccessPoint, InParams.InPath)
|
|
, GraphsClassDeclaration(InParams.InAccessPoint, Path::GetOwningClassDescription(InParams.InPath))
|
|
, OwningDocument(InParams.InAccessPoint, FDescPath())
|
|
{
|
|
if (InParams.InAccessPoint.IsValid())
|
|
{
|
|
// Test both pointers to the graph and it's owning class description.
|
|
ensureAlwaysMsgf(GraphPtr.IsValid() && GraphsClassDeclaration.IsValid(), TEXT("Tried to build FGraphHandle with Invalid Path: %s"), *Path::GetPrintableString(InParams.InPath));
|
|
}
|
|
}
|
|
|
|
uint32 FGraphHandle::FindNewUniqueNodeId()
|
|
{
|
|
// Assumption here is that we will never need more than ten thousand nodes,
|
|
// and four digits are easy enough to read/remember when looking at metasound graph documents.
|
|
static const uint32 NodeIDMax = 9999;
|
|
|
|
if (!IsValid())
|
|
{
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
TArray<FMetasoundNodeDescription>& Nodes = GraphPtr->Nodes;
|
|
|
|
if (!ensureAlwaysMsgf(((uint32)Nodes.Num()) < NodeIDMax, TEXT("Too many nodes to guarantee a unique node ID. Increase the value of NodeIDMax.")))
|
|
{
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
while (uint32 RandomID = FMath::RandRange(1, NodeIDMax))
|
|
{
|
|
// Scan through the nodes in this graph to see if they match this ID.
|
|
// If it does, generate a new random ID.
|
|
bool bFoundMatch = false;
|
|
for (FMetasoundNodeDescription& Node : Nodes)
|
|
{
|
|
if (Node.UniqueID == RandomID)
|
|
{
|
|
bFoundMatch = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!bFoundMatch)
|
|
{
|
|
return RandomID;
|
|
}
|
|
}
|
|
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
uint32 FGraphHandle::FindNewUniqueDependencyId()
|
|
{
|
|
// Assumption here is that we will never need more than ten thousand dependencies,
|
|
// and four digits are easy enough to read/remember when looking at metasound graph documents.
|
|
static const uint32 DependencyIDMax = 9999;
|
|
|
|
if (!IsValid())
|
|
{
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
TArray<FMetasoundClassDescription>& Dependencies = OwningDocument->Dependencies;
|
|
|
|
if (!ensureAlwaysMsgf(Dependencies.Num() < DependencyIDMax, TEXT("Too many nodes to guarantee a unique node ID. Increase the value of NodeIDMax.")))
|
|
{
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
while (uint32 RandomID = FMath::RandRange(1, DependencyIDMax))
|
|
{
|
|
// Scan through the nodes in this graph to see if they match this ID.
|
|
// If it does, generate a new random ID.
|
|
bool bFoundMatch = false;
|
|
for (FMetasoundClassDescription& Dependency : Dependencies)
|
|
{
|
|
if (Dependency.UniqueID == RandomID)
|
|
{
|
|
bFoundMatch = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!bFoundMatch)
|
|
{
|
|
return RandomID;
|
|
}
|
|
}
|
|
|
|
return INDEX_NONE;
|
|
}
|
|
|
|
FGraphHandle FGraphHandle::InvalidHandle()
|
|
{
|
|
FDescPath InvalidPath;
|
|
FString InvalidClassName;
|
|
FHandleInitParams InitParams = { nullptr, InvalidPath, InvalidClassName, nullptr };
|
|
return FGraphHandle(FHandleInitParams::Token, InitParams);
|
|
}
|
|
|
|
bool FGraphHandle::IsValid() const
|
|
{
|
|
return GraphPtr.IsValid() && GraphsClassDeclaration.IsValid();
|
|
}
|
|
|
|
TArray<FNodeHandle> FGraphHandle::GetAllNodes()
|
|
{
|
|
TArray<FNodeHandle> OutArray;
|
|
|
|
if (!IsValid())
|
|
{
|
|
return OutArray;
|
|
}
|
|
|
|
const TArray<FMetasoundNodeDescription>& NodeDescriptions = GraphPtr->Nodes;
|
|
for (const FMetasoundNodeDescription& NodeDescription : NodeDescriptions)
|
|
{
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NodeDescription.UniqueID];
|
|
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, NodeDescription.Name, OwningAsset };
|
|
OutArray.Emplace(FHandleInitParams::PrivateToken, InitParams, NodeDescription.ObjectTypeOfNode);
|
|
}
|
|
|
|
return OutArray;
|
|
}
|
|
|
|
FNodeHandle FGraphHandle::GetNodeWithId(uint32 InNodeId)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
const TArray<FMetasoundNodeDescription>& NodeDescriptions = GraphPtr->Nodes;
|
|
for (const FMetasoundNodeDescription& NodeDescription : NodeDescriptions)
|
|
{
|
|
if (NodeDescription.UniqueID == InNodeId)
|
|
{
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][InNodeId];
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, NodeDescription.Name, OwningAsset };
|
|
return FNodeHandle(FHandleInitParams::PrivateToken, InitParams, NodeDescription.ObjectTypeOfNode);
|
|
}
|
|
}
|
|
|
|
ensureAlwaysMsgf(false, TEXT("Couldn't find node in graph with ID %u!"), InNodeId);
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
TArray<FNodeHandle> FGraphHandle::GetOutputNodes()
|
|
{
|
|
TArray<FNodeHandle> OutArray;
|
|
|
|
if (!IsValid())
|
|
{
|
|
return OutArray;
|
|
}
|
|
|
|
const TArray<FMetasoundNodeDescription>& NodeDescriptions = GraphPtr->Nodes;
|
|
for (const FMetasoundNodeDescription& NodeDescription : NodeDescriptions)
|
|
{
|
|
if (NodeDescription.ObjectTypeOfNode == EMetasoundClassType::Output)
|
|
{
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NodeDescription.UniqueID];
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, NodeDescription.Name, OwningAsset };
|
|
OutArray.Emplace(FHandleInitParams::PrivateToken, InitParams, NodeDescription.ObjectTypeOfNode);
|
|
}
|
|
}
|
|
|
|
return OutArray;
|
|
}
|
|
|
|
TArray<FNodeHandle> FGraphHandle::GetInputNodes()
|
|
{
|
|
TArray<FNodeHandle> OutArray;
|
|
|
|
if (!IsValid())
|
|
{
|
|
return OutArray;
|
|
}
|
|
|
|
const TArray<FMetasoundNodeDescription>& NodeDescriptions = GraphPtr->Nodes;
|
|
for (const FMetasoundNodeDescription& NodeDescription : NodeDescriptions)
|
|
{
|
|
if (NodeDescription.ObjectTypeOfNode == EMetasoundClassType::Input)
|
|
{
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NodeDescription.UniqueID];
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, NodeDescription.Name, OwningAsset };
|
|
OutArray.Emplace(FHandleInitParams::PrivateToken, InitParams, NodeDescription.ObjectTypeOfNode);
|
|
}
|
|
}
|
|
|
|
return OutArray;
|
|
}
|
|
|
|
FNodeHandle FGraphHandle::GetOutputNodeWithName(const FString& InName)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
const TArray<FMetasoundNodeDescription>& NodeDescriptions = GraphPtr->Nodes;
|
|
for (const FMetasoundNodeDescription& NodeDescription : NodeDescriptions)
|
|
{
|
|
if (NodeDescription.ObjectTypeOfNode == EMetasoundClassType::Output && NodeDescription.Name == InName)
|
|
{
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NodeDescription.UniqueID];
|
|
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, InName, OwningAsset };
|
|
return FNodeHandle(FHandleInitParams::PrivateToken, InitParams, NodeDescription.ObjectTypeOfNode);
|
|
}
|
|
}
|
|
|
|
ensureAlwaysMsgf(false, TEXT("Tried to get output node %s, but it didn't exist"), *InName);
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
FNodeHandle FGraphHandle::GetInputNodeWithName(const FString& InName)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
const TArray<FMetasoundNodeDescription>& NodeDescriptions = GraphPtr->Nodes;
|
|
for (const FMetasoundNodeDescription& NodeDescription : NodeDescriptions)
|
|
{
|
|
if (NodeDescription.ObjectTypeOfNode == EMetasoundClassType::Input && NodeDescription.Name == InName)
|
|
{
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NodeDescription.UniqueID];
|
|
|
|
// todo: add special enum for input/output nodes
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, InName, OwningAsset };
|
|
return FNodeHandle(FHandleInitParams::PrivateToken, InitParams, NodeDescription.ObjectTypeOfNode);
|
|
}
|
|
}
|
|
|
|
ensureAlwaysMsgf(false, TEXT("Tried to get output node %s, but it didn't exist"), *InName);
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
FNodeHandle FGraphHandle::AddNewInput(const FMetasoundInputDescription& InDescription)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
// @todo: verify that InDescription.TypeName is a valid Metasound type.
|
|
|
|
const uint32 NewUniqueId = FindNewUniqueNodeId();
|
|
|
|
if (!ensureAlwaysMsgf(NewUniqueId != INDEX_NONE, TEXT("FindNewUniqueNodeId failed!")))
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
|
|
TArray<FMetasoundInputDescription>& Inputs = GraphsClassDeclaration->Inputs;
|
|
|
|
// Sanity check that this input has a unique name.
|
|
for (const FMetasoundInputDescription& Input : Inputs)
|
|
{
|
|
if (!ensureAlwaysMsgf(Input.Name != InDescription.Name, TEXT("Tried to add a new input with a name that already exists!")))
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
}
|
|
|
|
// Add the input to this node's class description.
|
|
Inputs.Add(InDescription);
|
|
|
|
FMetasoundNodeDescription NewNodeDescription;
|
|
NewNodeDescription.Name = InDescription.Name;
|
|
NewNodeDescription.UniqueID = NewUniqueId;
|
|
NewNodeDescription.ObjectTypeOfNode = EMetasoundClassType::Input;
|
|
|
|
GraphPtr->Nodes.Add(NewNodeDescription);
|
|
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NewNodeDescription.UniqueID];
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, NewNodeDescription.Name, OwningAsset };
|
|
// todo: add special enum for input and output nodes
|
|
return FNodeHandle(FHandleInitParams::PrivateToken, InitParams, NewNodeDescription.ObjectTypeOfNode);
|
|
}
|
|
|
|
bool FGraphHandle::RemoveInput(const FString& InputName)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
TArray<FMetasoundInputDescription>& Inputs = GraphsClassDeclaration->Inputs;
|
|
int32 IndexOfInputToRemove = -1;
|
|
|
|
for (int32 InputIndex = 0; InputIndex < Inputs.Num(); InputIndex++)
|
|
{
|
|
if (Inputs[InputIndex].Name == InputName)
|
|
{
|
|
IndexOfInputToRemove = InputIndex;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!ensureAlwaysMsgf(IndexOfInputToRemove >= 0, TEXT("Tried to remove an Input that didn't exist: %s"), *InputName))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// find the corresponding node handle to delete.
|
|
FNodeHandle InputNode = GetInputNodeWithName(InputName);
|
|
|
|
// If we found the input declared in the class description but couldn't find it in the graph,
|
|
// something has gone terribly wrong. Remove the input from the description, but still ensure.
|
|
if (!ensureAlwaysMsgf(InputNode.IsValid(), TEXT(R"(Couldn't find an input node with name %s, even though we found the input listed as a dependency.
|
|
This indicates the underlying FMetasoundClassDescription is corrupted.
|
|
Removing the Input in the class dependency to resolve...)"), *InputName))
|
|
{
|
|
Inputs.RemoveAt(IndexOfInputToRemove);
|
|
return true;
|
|
}
|
|
|
|
// Finally, remove the node, and remove the input.
|
|
if (!ensureAlwaysMsgf(RemoveNode(InputNode, true), TEXT("Call to RemoveNode failed.")))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Inputs.RemoveAt(IndexOfInputToRemove);
|
|
return true;
|
|
}
|
|
|
|
FNodeHandle FGraphHandle::AddNewOutput(const FMetasoundOutputDescription& OutDescription)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
// @todo: verify that InDescription.TypeName is a valid Metasound type.
|
|
|
|
const uint32 NewUniqueId = FindNewUniqueNodeId();
|
|
|
|
if (!ensureAlwaysMsgf(NewUniqueId != INDEX_NONE, TEXT("FindNewUniqueNodeId failed")))
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
|
|
TArray<FMetasoundOutputDescription>& Outputs = GraphsClassDeclaration->Outputs;
|
|
|
|
// Sanity check that this input has a unique name.
|
|
for (const FMetasoundOutputDescription& Output : Outputs)
|
|
{
|
|
if (!ensureAlwaysMsgf(Output.Name != OutDescription.Name, TEXT("Tried to add a new output with a name that already exists!")))
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
}
|
|
|
|
// Add the output to this node's class description.
|
|
Outputs.Add(OutDescription);
|
|
|
|
// Add a node for this output to the graph description.
|
|
FMetasoundNodeDescription NewNodeDescription;
|
|
NewNodeDescription.Name = OutDescription.Name;
|
|
NewNodeDescription.UniqueID = NewUniqueId;
|
|
NewNodeDescription.ObjectTypeOfNode = EMetasoundClassType::Output;
|
|
|
|
GraphPtr->Nodes.Add(NewNodeDescription);
|
|
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NewNodeDescription.UniqueID];
|
|
|
|
// todo: add special enum or class for input/output nodes
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, NewNodeDescription.Name, OwningAsset };
|
|
return FNodeHandle(FHandleInitParams::PrivateToken, InitParams, NewNodeDescription.ObjectTypeOfNode);
|
|
}
|
|
|
|
bool FGraphHandle::RemoveOutput(const FString& OutputName)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
TArray<FMetasoundOutputDescription>& Outputs = GraphsClassDeclaration->Outputs;
|
|
int32 IndexOfOutputToRemove = -1;
|
|
|
|
for (int32 OutputIndex = 0; OutputIndex < Outputs.Num(); OutputIndex++)
|
|
{
|
|
if (Outputs[OutputIndex].Name == OutputName)
|
|
{
|
|
IndexOfOutputToRemove = OutputIndex;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!ensureAlwaysMsgf(IndexOfOutputToRemove >= 0, TEXT("Tried to remove an Output that didn't exist: %s"), *OutputName))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// find the corresponding node handle to delete.
|
|
FNodeHandle OutputNode = GetOutputNodeWithName(OutputName);
|
|
|
|
// If we found the input declared in the class description but couldn't find it in the graph,
|
|
// something has gone terribly wrong. Remove the input from the description, but still ensure.
|
|
if (!ensureAlwaysMsgf(OutputNode.IsValid(), TEXT(R"(Couldn't find an input node with name %s, even though we found the input listed as a dependency.
|
|
This indicates the underlying FMetasoundClassDescription is corrupted.
|
|
Removing the Input in the class dependency to resolve...)"), *OutputName))
|
|
{
|
|
Outputs.RemoveAt(IndexOfOutputToRemove);
|
|
return true;
|
|
}
|
|
|
|
// Finally, remove the node, and remove the input.
|
|
if (!ensureAlwaysMsgf(RemoveNode(OutputNode, true), TEXT("Call to RemoveNode failed.")))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Outputs.RemoveAt(IndexOfOutputToRemove);
|
|
return true;
|
|
}
|
|
|
|
FNodeHandle FGraphHandle::AddNewNode(const FNodeClassInfo& InNodeClass)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
// First, scan our dependency list to see if this node already exists there, and if not, get it.
|
|
TArray<FMetasoundClassDescription>& Dependencies = OwningDocument->Dependencies;
|
|
|
|
bool bFoundMatchingDependencyInDocument = false;
|
|
|
|
for (FMetasoundClassDescription& Dependency : Dependencies)
|
|
{
|
|
if (Dependency.Metadata.NodeName == InNodeClass.NodeName && Dependency.Metadata.NodeType == InNodeClass.NodeType)
|
|
{
|
|
bFoundMatchingDependencyInDocument = true;
|
|
|
|
// If this dependency was in the document's dependency list, check to see if we need to add it to this class' dependencies.
|
|
bool bFoundDependencyInLocalClass = false;
|
|
for (uint32 DependencyID : GraphsClassDeclaration->DependencyIDs)
|
|
{
|
|
if (DependencyID == Dependency.UniqueID)
|
|
{
|
|
bFoundDependencyInLocalClass = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!bFoundDependencyInLocalClass)
|
|
{
|
|
// This dependency is already referenced somewhere in the document, but not for this graph's class. Add it.
|
|
GraphsClassDeclaration->DependencyIDs.Add(Dependency.UniqueID);
|
|
UE_LOG(LogTemp, Verbose, TEXT("Adding %s as a dependency for Metasound graph %s in Document %s"), *InNodeClass.NodeName, *GetGraphMetadata().NodeName, *OwningDocument->RootClass.Metadata.NodeName);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
// If we haven't added a node of this class to the graph yet, add it to the dependencies for this class.
|
|
if (!bFoundMatchingDependencyInDocument)
|
|
{
|
|
FMetasoundClassDescription NewDependencyClassDescription = GenerateClassDescriptionForNode(InNodeClass);
|
|
NewDependencyClassDescription.UniqueID = FindNewUniqueDependencyId();
|
|
Dependencies.Add(NewDependencyClassDescription);
|
|
GraphsClassDeclaration->DependencyIDs.Add(NewDependencyClassDescription.UniqueID);
|
|
|
|
UE_LOG(LogTemp, Verbose, TEXT("Adding %s is used in graph %s, adding as a new dependency for Metasound Document %s"), *InNodeClass.NodeName, *GetGraphMetadata().NodeName, *OwningDocument->RootClass.Metadata.NodeName);
|
|
}
|
|
|
|
// Add a new node instance for this class.
|
|
|
|
const uint32 NewUniqueId = FindNewUniqueNodeId();
|
|
if (!ensureAlwaysMsgf(NewUniqueId != INDEX_NONE, TEXT("Call to FindNewUniqueNodeId failed!")))
|
|
{
|
|
return FNodeHandle::InvalidHandle();
|
|
}
|
|
|
|
// Add a node for this output to the graph description.
|
|
FMetasoundNodeDescription NewNodeDescription;
|
|
NewNodeDescription.Name = InNodeClass.NodeName;
|
|
NewNodeDescription.UniqueID = NewUniqueId;
|
|
NewNodeDescription.ObjectTypeOfNode = InNodeClass.NodeType;
|
|
|
|
GraphPtr->Nodes.Add(NewNodeDescription);
|
|
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NewNodeDescription.UniqueID];
|
|
FHandleInitParams InitParams = { GraphPtr.GetAccessPoint(), NodePath, NewNodeDescription.Name, OwningAsset };
|
|
return FNodeHandle(FHandleInitParams::PrivateToken, InitParams, NewNodeDescription.ObjectTypeOfNode);
|
|
}
|
|
|
|
bool FGraphHandle::RemoveNode(const FNodeHandle& InNode, bool bEvenIfInputOrOutputNode /*= false*/)
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// First, find the node in our nodes list,
|
|
// while also checking to see if this is the only node of this class left in this graph.
|
|
TArray<FMetasoundNodeDescription>& Nodes = GraphPtr->Nodes;
|
|
int32 IndexOfNodeToRemove = -1;
|
|
int32 NodesOfClass = 0;
|
|
|
|
FString NodeClassName = InNode.GetNodeClassName();
|
|
|
|
for (int32 NodeIndex = 0; NodeIndex < Nodes.Num(); NodeIndex++)
|
|
{
|
|
if (Nodes[NodeIndex].Name == NodeClassName)
|
|
{
|
|
NodesOfClass++;
|
|
}
|
|
|
|
if (Nodes[NodeIndex].UniqueID == InNode.GetNodeID())
|
|
{
|
|
IndexOfNodeToRemove = NodeIndex;
|
|
}
|
|
|
|
// If we've found the matching node,
|
|
// and have found that there is more than one node of this class,
|
|
// we have found all the info we need.
|
|
if (IndexOfNodeToRemove > 0 && NodesOfClass > 1)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!ensureAlwaysMsgf(IndexOfNodeToRemove >= 0, TEXT(R"(Couldn't find node corresponding to handle (%s ID: %u).
|
|
Are you sure this FNodeHandle was generated from this FGraphHandle?)"),
|
|
*InNode.GetNodeClassName(),
|
|
InNode.GetNodeType()))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// This should never hit based on the logic above.
|
|
if (!ensureAlwaysMsgf(NodesOfClass > 0, TEXT("Found node with matching ID (%u) but mismatched class (%s). Likely means that the underlying class description was corrupted."),
|
|
*InNode.GetNodeClassName(),
|
|
InNode.GetNodeType()))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// If this node was the only node of this class remaining in the graph,
|
|
// Remove its ID as a dependency for the graph.
|
|
if (NodesOfClass < 2)
|
|
{
|
|
TArray<uint32>& DependencyIDs = GraphsClassDeclaration->DependencyIDs;
|
|
int32 IndexOfDependencyToRemove = -1;
|
|
|
|
uint32 UniqueIDForThisDependency = INDEX_NONE;
|
|
TArray<FMetasoundClassDescription>& DependencyClasses = OwningDocument->Dependencies;
|
|
|
|
// scan the owning document's depenency classes for a dependency with this name.
|
|
int32 IndexOfDependencyInDocument = -1;
|
|
for (int32 Index = 0; Index < DependencyClasses.Num(); Index++)
|
|
{
|
|
if (DependencyClasses[Index].Metadata.NodeName == NodeClassName)
|
|
{
|
|
IndexOfDependencyInDocument = Index;
|
|
UniqueIDForThisDependency = DependencyClasses[Index].UniqueID;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!ensureAlwaysMsgf(IndexOfDependencyToRemove >= 0,
|
|
TEXT("Couldn't find node class %s in the list of dependencies for this document, but found it in the nodes list. This likely means that the underlying class description is corrupted.)"), *NodeClassName))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (int32 DependencyIndex = 0; DependencyIndex < DependencyIDs.Num(); DependencyIndex++)
|
|
{
|
|
const bool bIsDependencyForNodeToRemove = DependencyIDs[DependencyIndex] == UniqueIDForThisDependency;
|
|
|
|
if (bIsDependencyForNodeToRemove)
|
|
{
|
|
IndexOfDependencyToRemove = DependencyIndex;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ensureAlwaysMsgf(IndexOfDependencyToRemove > 0, TEXT(R"(Couldn't find node class %s in the list of dependencies for this graph, but found it in the nodes list.
|
|
This likely means that the underlying class description is corrupted.)"), *NodeClassName))
|
|
{
|
|
DependencyIDs.RemoveAt(IndexOfDependencyToRemove);
|
|
}
|
|
|
|
// Finally, check to see if there are any classes remaining in this document that depend on this class, and remove it from our dependencies list.
|
|
bool bFoundUsageOfDependencyInClass = false;
|
|
|
|
for (FMetasoundClassDescription& Dependency : DependencyClasses)
|
|
{
|
|
if (Dependency.DependencyIDs.Contains(UniqueIDForThisDependency))
|
|
{
|
|
bFoundUsageOfDependencyInClass = true;
|
|
}
|
|
}
|
|
|
|
// Also scan the root graph for this document, which lives outside of the Dependencies list.
|
|
FMetasoundClassDescription& RootClass = OwningDocument->RootClass;
|
|
if (RootClass.DependencyIDs.Contains(UniqueIDForThisDependency))
|
|
{
|
|
bFoundUsageOfDependencyInClass = true;
|
|
}
|
|
|
|
if (!bFoundUsageOfDependencyInClass)
|
|
{
|
|
// we can safely delete this dependency from the document.
|
|
DependencyClasses.RemoveAt(IndexOfDependencyInDocument);
|
|
}
|
|
}
|
|
|
|
// Finally, remove the node from the nodes list.
|
|
Nodes.RemoveAt(IndexOfNodeToRemove);
|
|
return true;
|
|
}
|
|
|
|
FMetasoundClassMetadata FGraphHandle::GetGraphMetadata()
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return FMetasoundClassMetadata();
|
|
}
|
|
|
|
return GraphsClassDeclaration->Metadata;
|
|
}
|
|
|
|
bool FGraphHandle::ExportToJSONAsset(const FString& InAbsolutePath) const
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (TUniquePtr<FArchive> FileWriter = TUniquePtr<FArchive>(IFileManager::Get().CreateFileWriter(*InAbsolutePath)))
|
|
{
|
|
FJsonStructSerializerBackend Backend(*FileWriter, EStructSerializerBackendFlags::Default);
|
|
FStructSerializer::Serialize<FMetasoundClassDescription>(GraphsClassDeclaration.GetChecked(), Backend);
|
|
FileWriter->Close();
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
ensureAlwaysMsgf(false, TEXT("Failed to create a filewriter with the given path."));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool FGraphHandle::InflateNodeDirectlyIntoGraph(FNodeHandle& InNode)
|
|
{
|
|
ensureAlwaysMsgf(false, TEXT("Implement me!"));
|
|
// nontrivial but required anyways for graph inflation (UEAU-475)
|
|
|
|
//step 0: get the node's FMetasoundClassDescription
|
|
//step 1: check if the node is itself a metasound
|
|
//step 2: get the FMetasoundGraphDescription for the node from the Dependencies list.
|
|
//step 3: create new unique IDs for each node in the subgraph.
|
|
//step 4: add nodes from subgraph to the current graph.
|
|
//step 5: rebuild connections for new nodes in current graph based on the new IDs.
|
|
//step 6: delete Input nodes and Output nodes from the subgraph, and rebuild connections from this graph directly to the nodes in the subgraph.
|
|
return false;
|
|
}
|
|
|
|
TTuple<FGraphHandle, FNodeHandle> FGraphHandle::CreateEmptySubgraphNode(const FMetasoundClassMetadata& InInfo)
|
|
{
|
|
auto BuildInvalidTupleHandle = [&]() -> TTuple<FGraphHandle, FNodeHandle>
|
|
{
|
|
return TTuple<FGraphHandle, FNodeHandle>(FGraphHandle::InvalidHandle(), FNodeHandle::InvalidHandle());
|
|
};
|
|
|
|
if (!IsValid())
|
|
{
|
|
return BuildInvalidTupleHandle();
|
|
}
|
|
|
|
// Sanity check that the given name isn't already in our graph's dependency list.
|
|
TArray<FMetasoundClassDescription>& Dependencies = OwningDocument->Dependencies;
|
|
for (FMetasoundClassDescription& Dependency : Dependencies)
|
|
{
|
|
if (!ensureAlwaysMsgf(Dependency.Metadata.NodeName != InInfo.NodeName, TEXT("Tried to create a new subgraph with name %s but there was already a dependency named that in the graph."), *InInfo.NodeName))
|
|
{
|
|
return BuildInvalidTupleHandle();
|
|
}
|
|
}
|
|
|
|
// Create a new class in this graph's dependencies list:
|
|
uint32 NewUniqueIDForGraph = FindNewUniqueDependencyId();
|
|
if (!ensureAlwaysMsgf(NewUniqueIDForGraph != INDEX_NONE, TEXT("Call to FindNewUniqueNodeId failed!")))
|
|
{
|
|
return BuildInvalidTupleHandle();
|
|
}
|
|
|
|
FMetasoundClassDescription& NewGraphClass = Dependencies.Add_GetRef(FMetasoundClassDescription());
|
|
NewGraphClass.Metadata = InInfo;
|
|
NewGraphClass.Metadata.NodeType = EMetasoundClassType::MetasoundGraph;
|
|
NewGraphClass.UniqueID = NewUniqueIDForGraph;
|
|
|
|
// Add the new subgraph's ID as a dependency for the current graph:
|
|
GraphsClassDeclaration->DependencyIDs.Add(NewUniqueIDForGraph);
|
|
|
|
// Generate a new FGraphHandle for this subgraph:
|
|
FDescPath PathForNewGraph = FDescPath()[Path::EFromDocument::ToDependencies][*InInfo.NodeName][Path::EFromClass::ToGraph];
|
|
FHandleInitParams InitParams = { GraphsClassDeclaration.GetAccessPoint(), PathForNewGraph, InInfo.NodeName, OwningAsset };
|
|
FGraphHandle SubgraphHandle = FGraphHandle(FHandleInitParams::PrivateToken, InitParams);
|
|
|
|
// Create the node for this subgraph in the current graph:
|
|
const uint32 NewUniqueId = FindNewUniqueNodeId();
|
|
if (!ensureAlwaysMsgf(NewUniqueId != INDEX_NONE, TEXT("Call to FindNewUniqueNodeId failed!")))
|
|
{
|
|
return BuildInvalidTupleHandle();
|
|
}
|
|
|
|
// Add a node for this output to the graph description.
|
|
FMetasoundNodeDescription NewNodeDescription;
|
|
NewNodeDescription.Name = InInfo.NodeName;
|
|
NewNodeDescription.UniqueID = NewUniqueId;
|
|
NewNodeDescription.ObjectTypeOfNode = InInfo.NodeType;
|
|
|
|
GraphPtr->Nodes.Add(NewNodeDescription);
|
|
|
|
FDescPath NodePath = GraphPtr.GetPath()[Path::EFromGraph::ToNodes][NewNodeDescription.UniqueID];
|
|
FHandleInitParams NodeInitParams = { GraphPtr.GetAccessPoint(), NodePath, InInfo.NodeName, OwningAsset };
|
|
FNodeHandle SubgraphNode = FNodeHandle(FHandleInitParams::PrivateToken, NodeInitParams, NewNodeDescription.ObjectTypeOfNode);
|
|
|
|
return TTuple<FGraphHandle, FNodeHandle>(SubgraphHandle, SubgraphNode);
|
|
}
|
|
|
|
TUniquePtr<IOperator> FGraphHandle::BuildOperator(const FOperatorSettings& InSettings, TArray<IOperatorBuilder::FBuildErrorPtr>& OutBuildErrors) const
|
|
{
|
|
if (!IsValid())
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
// TODO: Implement inflation step here.
|
|
|
|
// At this point, we should be left with a flat graph of externally implemented nodes.
|
|
using FGraph = Metasound::FGraph;
|
|
using FDataEdge = Metasound::FDataEdge;
|
|
using INodePtr = TUniquePtr<INode>;
|
|
|
|
TArray<FName> DataTypes = GetAllAvailableDataTypes();
|
|
|
|
auto IsInputNode = [](const FMetasoundNodeDescription& InDescription) -> bool
|
|
{
|
|
return InDescription.ObjectTypeOfNode == EMetasoundClassType::Input;
|
|
};
|
|
|
|
auto IsOutputNode = [](const FMetasoundNodeDescription& InDescription) -> bool
|
|
{
|
|
return InDescription.ObjectTypeOfNode == EMetasoundClassType::Output;
|
|
};
|
|
|
|
int32 TotalNodesGenerated = 0;
|
|
|
|
// These maps are used to fix up input and output destinations after we have fully connected the graph.
|
|
TMap<int32, uint32> InputIndexToInputNodeIDs;
|
|
TMap<int32, uint32> OutputIndexToInputNodeIDs;
|
|
|
|
// Helper for auto-generating nodes.
|
|
auto GetNodePtr = [&](const FMetasoundNodeDescription& InDescription) -> INodePtr
|
|
{
|
|
if (IsInputNode(InDescription))
|
|
{
|
|
// Find this in the graph's class description's list of inputs, until we find a match.
|
|
const TArray<FMetasoundInputDescription>& InputDescriptions = GraphsClassDeclaration->Inputs;
|
|
|
|
int32 InputDescriptionIndex = 0;
|
|
|
|
for (const FMetasoundInputDescription& InputDescription : InputDescriptions)
|
|
{
|
|
if (InputDescription.Name == InDescription.Name)
|
|
{
|
|
// We found a match. now we just need to create the input node.
|
|
FDataTypeLiteralParam LiteralParam = GetLiteralParamForDataType(InputDescription.TypeName, InputDescription.LiteralValue);
|
|
|
|
if (!ensureAlwaysMsgf(DoesDataTypeSupportLiteralType(InputDescription.TypeName, InputDescription.LiteralValue.LiteralType), TEXT("Tried to use an unsupported literal type!")))
|
|
{
|
|
// print out some info about the type.
|
|
UE_LOG(LogTemp, Display, TEXT("Data Type %s supports the following literal types:"), *InputDescription.TypeName.ToString());
|
|
|
|
FDataTypeRegistryInfo DataTypeInfo;
|
|
|
|
// this shouldn't hit at all, because this should be a registered data type.
|
|
ensure(GetTraitsForDataType(InputDescription.TypeName, DataTypeInfo));
|
|
|
|
if (DataTypeInfo.bIsBoolParsable)
|
|
{
|
|
UE_LOG(LogTemp, Display, TEXT(" Boolean"));
|
|
}
|
|
|
|
if (DataTypeInfo.bIsIntParsable)
|
|
{
|
|
UE_LOG(LogTemp, Display, TEXT(" Integer"));
|
|
}
|
|
|
|
if (DataTypeInfo.bIsFloatParsable)
|
|
{
|
|
UE_LOG(LogTemp, Display, TEXT(" Float"));
|
|
}
|
|
|
|
if (DataTypeInfo.bIsStringParsable)
|
|
{
|
|
UE_LOG(LogTemp, Display, TEXT(" String"));
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
FInputNodeConstructorParams InitParams =
|
|
{
|
|
InputDescription.Name,
|
|
InputDescription.Name,
|
|
InSettings,
|
|
LiteralParam
|
|
};
|
|
|
|
INodePtr InputNode = ConstructInputNode(InputDescription.TypeName, InitParams);
|
|
if (!ensureAlwaysMsgf(InputNode.IsValid(), TEXT("Failed to construct a valid input node for Data Type %s!"), *InputDescription.TypeName.ToString()))
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
TotalNodesGenerated++;
|
|
|
|
InputIndexToInputNodeIDs.Add(InputDescriptionIndex, InDescription.UniqueID);
|
|
|
|
return InputNode;
|
|
}
|
|
else
|
|
{
|
|
InputDescriptionIndex++;
|
|
}
|
|
}
|
|
|
|
// if we hit this, the document has been corrupted in some way, because we didn't have a matching Input Description for this node.
|
|
ensureAlwaysMsgf(false, TEXT("Document corrupted! found input node %s but couldn't find a matching Input Description for it in the Class Description."), *InDescription.Name);
|
|
return nullptr;
|
|
}
|
|
else if (IsOutputNode(InDescription))
|
|
{
|
|
int32 OutputDescriptionIndex = 0;
|
|
|
|
// Find this in the graph's class description's list of inputs, until we find a match.
|
|
const TArray<FMetasoundOutputDescription>& OutputDescriptions = GraphsClassDeclaration->Outputs;
|
|
for (const FMetasoundOutputDescription& OutputDescription : OutputDescriptions)
|
|
{
|
|
if (OutputDescription.Name == InDescription.Name)
|
|
{
|
|
// We found a match. now we just need to create the input node.
|
|
FOutputNodeConstrutorParams InitParams =
|
|
{
|
|
OutputDescription.Name,
|
|
OutputDescription.Name,
|
|
};
|
|
|
|
INodePtr OutputNode = ConstructOutputNode(OutputDescription.TypeName, InitParams);
|
|
if (!ensureAlwaysMsgf(OutputNode.IsValid(), TEXT("Failed to construct a valid input node for Data Type %s!"), *OutputDescription.TypeName.ToString()))
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
TotalNodesGenerated++;
|
|
|
|
OutputIndexToInputNodeIDs.Add(OutputDescriptionIndex, InDescription.UniqueID);
|
|
|
|
return OutputNode;
|
|
}
|
|
else
|
|
{
|
|
OutputDescriptionIndex++;
|
|
}
|
|
}
|
|
|
|
// if we hit this, the document has been corrupted in some way, because we didn't have a matching Input Description for this node.
|
|
ensureAlwaysMsgf(false, TEXT("Document corrupted! found input node %s but couldn't find a matching Input Description for it in the Class Description."), *InDescription.Name);
|
|
return nullptr;
|
|
}
|
|
else
|
|
{
|
|
if (!ensureAlwaysMsgf(InDescription.ObjectTypeOfNode == EMetasoundClassType::External, TEXT("At this point in construction, we should only need to look up external nodes.")))
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
// Find the node class in the dependencies.
|
|
const TArray<FMetasoundClassDescription>& DependencyDescriptions = OwningDocument->Dependencies;
|
|
for (const FMetasoundClassDescription& DependencyDescription : DependencyDescriptions)
|
|
{
|
|
// TODO: Add the dependency ID to the node so that we can look it up directly.
|
|
if (DependencyDescription.Metadata.NodeName == InDescription.Name)
|
|
{
|
|
// We found a match. now we just need to create the input node.
|
|
const FMetasoundExternalClassLookupInfo& LookupInfo = DependencyDescription.ExternalNodeClassLookupInfo;
|
|
FNodeInitData InitData;
|
|
InitData.InstanceName.Append(InDescription.Name);
|
|
InitData.InstanceName.AppendChar('_');
|
|
InitData.InstanceName.AppendInt(InDescription.UniqueID);
|
|
|
|
// Copy over our initialization params.
|
|
for (auto& StaticParamTuple : InDescription.StaticParameters)
|
|
{
|
|
FDataTypeLiteralParam LiteralParam = GetLiteralParam(StaticParamTuple.Value);
|
|
|
|
if (LiteralParam.IsValid())
|
|
{
|
|
InitData.ParamMap.Add(StaticParamTuple.Key, LiteralParam);
|
|
}
|
|
}
|
|
|
|
INodePtr ExternalNode = ConstructExternalNode(LookupInfo.ExternalNodeClassName, LookupInfo.ExternalNodeClassHash, InitData);
|
|
if (!ensureAlwaysMsgf(ExternalNode.IsValid(), TEXT("Failed to construct a valid external node for Node Class %s!"), *DependencyDescription.Metadata.NodeName))
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
TotalNodesGenerated++;
|
|
return ExternalNode;
|
|
}
|
|
}
|
|
|
|
ensureAlwaysMsgf(false, TEXT("Document corrupted! found node %s but couldn't find a matching Class Description for it in the Dependencies."), *InDescription.Name);
|
|
return nullptr;
|
|
}
|
|
};
|
|
|
|
FGraph GraphToBuild = FGraph(GraphsClassDeclaration->Metadata.NodeName);
|
|
|
|
TMap<uint32, INodePtr> GraphNodes;
|
|
|
|
// Step 1: Initialize Nodes
|
|
const TArray<FMetasoundNodeDescription>& NodeDescriptions = GraphPtr->Nodes;
|
|
|
|
for (const FMetasoundNodeDescription& NodeDescription : NodeDescriptions)
|
|
{
|
|
INodePtr NodePtr = GetNodePtr(NodeDescription);
|
|
|
|
if (!NodePtr.IsValid())
|
|
{
|
|
return nullptr;
|
|
}
|
|
else
|
|
{
|
|
GraphNodes.Add(NodeDescription.UniqueID, MoveTemp(NodePtr));
|
|
}
|
|
}
|
|
|
|
// Sanity check that we created enough input nodes and output nodes.
|
|
const int32 NumInputsInMetasoundClass = GraphsClassDeclaration->Inputs.Num();
|
|
if (InputIndexToInputNodeIDs.Num() != NumInputsInMetasoundClass)
|
|
{
|
|
ensureAlwaysMsgf(false, TEXT("Mismatch between number of inputs in the metasound graph (%d) and number of inputs declared in it's class description (%d)!"), InputIndexToInputNodeIDs.Num(), NumInputsInMetasoundClass);
|
|
return nullptr;
|
|
}
|
|
|
|
const int32 NumOutputsInMetasoundClass = GraphsClassDeclaration->Outputs.Num();
|
|
if (OutputIndexToInputNodeIDs.Num() != NumOutputsInMetasoundClass)
|
|
{
|
|
ensureAlwaysMsgf(false, TEXT("Mismatch between number of outputs in the metasound graph (%d) and number of outputs declared in it's class description (%d)!"), OutputIndexToInputNodeIDs.Num(), NumOutputsInMetasoundClass);
|
|
return nullptr;
|
|
}
|
|
|
|
if (TotalNodesGenerated != GraphPtr->Nodes.Num())
|
|
{
|
|
ensureAlwaysMsgf(false, TEXT("Created %d of %d needed nodes!"), TotalNodesGenerated, GraphPtr->Nodes.Num());
|
|
return nullptr;
|
|
}
|
|
|
|
// Step 2: Connect Nodes Inside The Graph
|
|
for (const FMetasoundNodeDescription& NodeDescription : NodeDescriptions)
|
|
{
|
|
// TODO: create a INode type that houses literals.
|
|
|
|
INodePtr& NodeToConnectTo = GraphNodes[NodeDescription.UniqueID];
|
|
|
|
for (const FMetasoundNodeConnectionDescription& InputConnection : NodeDescription.InputConnections)
|
|
{
|
|
const bool bCanMakeConnection = InputConnection.NodeID != FMetasoundNodeConnectionDescription::DisconnectedNodeID
|
|
&& ensureAlwaysMsgf(GraphNodes.Contains(InputConnection.NodeID), TEXT("Connection in document describes a node ID that doesn't exist!"));
|
|
|
|
if (bCanMakeConnection)
|
|
{
|
|
INodePtr& NodeToConnectFrom = GraphNodes[InputConnection.NodeID];
|
|
GraphToBuild.AddDataEdge(*NodeToConnectFrom, *InputConnection.OutputName, *NodeToConnectTo, *InputConnection.InputName);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Step 3: Declare our Input Destinations
|
|
const TArray<FMetasoundInputDescription>& InputDescriptions = GraphsClassDeclaration->Inputs;
|
|
for (auto& InputTuple : InputIndexToInputNodeIDs)
|
|
{
|
|
INodePtr& InputNodePtr = GraphNodes[InputTuple.Value];
|
|
const FString& InVertexName = InputDescriptions[InputTuple.Key].Name;
|
|
GraphToBuild.AddInputDataDestination(*InputNodePtr, *InVertexName);
|
|
}
|
|
|
|
// Step 4: Declare our Output Destinations
|
|
const TArray<FMetasoundOutputDescription>& OutputDescriptions = GraphsClassDeclaration->Outputs;
|
|
for (auto& OutputTuple : OutputIndexToInputNodeIDs)
|
|
{
|
|
INodePtr& OutputNodePtr = GraphNodes[OutputTuple.Value];
|
|
const FString& OutVertexName = OutputDescriptions[OutputTuple.Key].Name;
|
|
GraphToBuild.AddOutputDataSource(*OutputNodePtr, *OutVertexName);
|
|
}
|
|
|
|
/** NOTE: In the future- we should split steps 1-4 above, and 5 below. GraphToBuild and the node map can be cached on the graph handle. */
|
|
|
|
// Step 5: Invoke Operator Builder
|
|
FOperatorBuilder Builder(InSettings);
|
|
return Builder.BuildGraphOperator(GraphToBuild, OutBuildErrors);
|
|
}
|
|
|
|
FGraphHandle GetGraphHandleForClass(const FMetasoundClassDescription& InClass)
|
|
{
|
|
ensureAlwaysMsgf(false, TEXT("Implement Me!"));
|
|
|
|
// to implement this, we'll need to
|
|
// step 1. add tags for metasound asset UObject types that make their node name/inputs/outputs asset registry searchable
|
|
// step 2. search the asset registry for the assets.
|
|
// step 3. Consider a runtime implementation for this using soft object paths.
|
|
return FGraphHandle::InvalidHandle();
|
|
}
|
|
}
|
|
}
|
|
|
|
class FMetasoundFrontendModule : public IModuleInterface
|
|
{
|
|
virtual void StartupModule() override
|
|
{
|
|
Metasound::Frontend::InitializeFrontend();
|
|
}
|
|
};
|
|
|
|
IMPLEMENT_MODULE(FMetasoundFrontendModule, MetasoundFrontend);
|