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- Avoids string format/copies/conversions in most cases where its just used as a key - Deprecate NodeRegistryKey namespace calls #rb phil.popp #rb helen.yang [CL 28727626 by rob gay in ue5-main branch]
61 lines
3.1 KiB
C++
61 lines
3.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Templates/Casts.h"
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#include "MetasoundDataReference.h"
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#include "MetasoundFrontendRegistries.h"
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#include "MetasoundFrontendRegistryKey.h"
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#include "MetasoundInputNode.h"
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#include "MetasoundLog.h"
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#include "MetasoundOperatorInterface.h"
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#include "MetasoundOutputNode.h"
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#include "MetasoundVertex.h"
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template<typename TNodeType, typename TFromType, typename TToType>
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bool RegisterConversionNode(const Metasound::FVertexName& FromPin, const Metasound::FVertexName& ToPin, const Metasound::FNodeClassMetadata& InNodeMetadata)
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{
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using FConverterNodeRegistryKey = ::Metasound::Frontend::FConverterNodeRegistryKey;
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using FConverterNodeInfo = ::Metasound::Frontend::FConverterNodeInfo;
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// if we reenter this code (because DECLARE_METASOUND_DATA_REFERENCE_TYPES was called twice with the same type),
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// we catch it here.
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static bool bAlreadyRegisteredThisConverter = false;
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if (bAlreadyRegisteredThisConverter)
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{
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UE_LOG(LogTemp, Display, TEXT("Tried to call REGISTER_METASOUND_CONVERTER twice with the same class. ignoring the second call. Likely because REGISTER_METASOUND_CONVERTER is in a header that's used in multiple modules. Consider moving it to a private header or cpp file."))
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return false;
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}
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bAlreadyRegisteredThisConverter = true;
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// Get the FNames from our datatypes
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FName FromType = ::Metasound::TDataReferenceTypeInfo<TFromType>::TypeName;
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FName ToType = ::Metasound::TDataReferenceTypeInfo<TToType>::TypeName;
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FConverterNodeRegistryKey RegistryKey = { FromType, ToType };
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FConverterNodeInfo ConverterNodeInfo =
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{
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FromPin,
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ToPin,
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Metasound::Frontend::FNodeRegistryKey(InNodeMetadata)
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};
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return FMetasoundFrontendRegistryContainer::Get()->RegisterConversionNode(RegistryKey, ConverterNodeInfo);
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}
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// Convenience macro for token pasting the three parameters for the converter node into a unique static bool name:
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#define MS_CONVERTER_BOOL(Node, FromDataType, ToDataType) MS_CONVERTER_BOOL_HIDDEN(Node, FromDataType, ToDataType)
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#define MS_CONVERTER_BOOL_HIDDEN(Node, FromDataType, ToDataType) Node ## FromDataType ## ToDataType
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#define MS_INVOKE_CONVERTER_REGISTRATION_HIDDEN(NodeType, FromDataType, ToDataType, FromOutputPin, ToInputPin) FMetasoundFrontendRegistryContainer::Get()->EnqueueInitCommand([](){ ::RegisterConversionNode<NodeType, FromDataType, ToDataType >(FString(TEXT( #FromOutputPin )), FString(TEXT( #ToInputPin ))); })
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#define MS_INVOKE_CONSTRUCTOR_REGISTRATION(NodeType, FromDataType, ToDataType, FromOutputPin, ToInputPin) MS_CONVERTER_BOOL(NodeType, FromDataType, ToDataType) = MS_INVOKE_CONVERTER_REGISTRATION_HIDDEN(NodeType, FromDataType, ToDataType, FromOutputPin, ToInputPin)
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// This macro exposes a previously registered node as a valid way to convert from one datatype to another.
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// When a user tries to connect a FromDataType output to a ToDataType input pin, this node will pop up as a potential node to insert between the two.
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#define REGISTER_METASOUND_CONVERTER(NodeType, FromDataType, ToDataType, FromOutputPin, ToInputPin) static const bool MS_INVOKE_CONSTRUCTOR_REGISTRATION(NodeType, FromDataType, ToDataType, FromOutputPin, ToInputPin);
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