Files
UnrealEngine/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundArrayNodes.h
2025-05-18 13:04:45 +08:00

940 lines
32 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Interfaces/MetasoundFrontendSourceInterface.h"
#include "Internationalization/Text.h"
#include "MetasoundBuilderInterface.h"
#include "MetasoundDataFactory.h"
#include "MetasoundEnvironment.h"
#include "MetasoundExecutableOperator.h"
#include "MetasoundFacade.h"
#include "MetasoundLog.h"
#include "MetasoundNodeInterface.h"
#include "MetasoundNodeRegistrationMacro.h"
#include "MetasoundOperatorInterface.h"
#include "MetasoundParamHelper.h"
#include "MetasoundPrimitives.h"
#include "MetasoundTrigger.h"
#include "MetasoundVertex.h"
#include <type_traits>
#define LOCTEXT_NAMESPACE "MetasoundFrontend"
namespace Metasound
{
namespace MetasoundArrayNodesPrivate
{
// Convenience function for make FNodeClassMetadata of array nodes.
METASOUNDFRONTEND_API FNodeClassMetadata CreateArrayNodeClassMetadata(const FName& InDataTypeName, const FName& InOperatorName, const FText& InDisplayName, const FText& InDescription, const FVertexInterface& InDefaultInterface, int32 MajorVersion=1, int32 MinorVersion=0, bool bIsDeprecated=false);
// Retrieve the ElementType from an ArrayType
template<typename ArrayType>
struct TArrayElementType
{
// Default implementation has Type.
};
// ElementType specialization for TArray types.
template<typename ElementType>
struct TArrayElementType<TArray<ElementType>>
{
using Type = ElementType;
};
}
namespace ArrayNodeVertexNames
{
static const FLazyName InputInitialArrayName = TEXT("Array");
#if WITH_EDITOR
static const FText InputInitialArrayTooltip = LOCTEXT("InitialArrayTooltip", "Initial Array");
static const FText InputInitialArrayDisplayName = LOCTEXT("InitialArrayDisplayName", "Init Array");
#else
static const FText InputInitialArrayTooltip = FText::GetEmpty();
static const FText InputInitialArrayDisplayName = FText::GetEmpty();
#endif
METASOUND_PARAM(InputArray, "Array", "Input Array.")
METASOUND_PARAM(InputLeftArray, "Left Array", "Input Left Array.")
METASOUND_PARAM(InputRightArray, "Right Array", "Input Right Array.")
METASOUND_PARAM(InputTriggerGet, "Trigger", "Trigger to get value.")
METASOUND_PARAM(InputTriggerSet, "Trigger", "Trigger to set value.")
METASOUND_PARAM(InputIndex, "Index", "Index in Array.")
METASOUND_PARAM(InputStartIndex, "Start Index", "First index to include.")
METASOUND_PARAM(InputEndIndex, "End Index", "Last index to include.")
METASOUND_PARAM(InputValue, "Value", "Value to set.")
METASOUND_PARAM(OutputNum, "Num", "Number of elements in the array.")
METASOUND_PARAM(OutputValue, "Element", "Value of element at array index.")
METASOUND_PARAM(OutputArrayConcat, "Array", "Array after concatenation.")
METASOUND_PARAM(OutputArraySet, "Array", "Array after setting.")
METASOUND_PARAM(OutputArraySubset, "Array", "Subset of input array.")
METASOUND_PARAM(OutputLastIndex, "Last Index", "Last index of the array.")
};
/** TArrayNumOperator gets the number of elements in an Array. The operator
* uses the FNodeFacade and defines the vertex, metadata and vertex interface
* statically on the operator class. */
template<typename ArrayType>
class TArrayNumOperator : public TExecutableOperator<TArrayNumOperator<ArrayType>>
{
public:
using FArrayDataReadReference = TDataReadReference<ArrayType>;
// Declare the vertex interface
static const FVertexInterface& GetDefaultInterface()
{
using namespace ArrayNodeVertexNames;
static const FVertexInterface DefaultInterface(
FInputVertexInterface(
TInputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputArray))
),
FOutputVertexInterface(
TOutputDataVertex<int32>(METASOUND_GET_PARAM_NAME_AND_METADATA(OutputNum))
)
);
return DefaultInterface;
}
static const FNodeClassMetadata& GetNodeInfo()
{
auto CreateNodeClassMetadata = []() -> FNodeClassMetadata
{
const FName DataTypeName = GetMetasoundDataTypeName<ArrayType>();
const FName OperatorName = TEXT("Num");
const FText NodeDisplayName = METASOUND_LOCTEXT_FORMAT("ArrayOpArrayNumDisplayNamePattern", "Num ({0})", GetMetasoundDataTypeDisplayText<ArrayType>());
const FText NodeDescription = METASOUND_LOCTEXT("ArrayOpArrayNumDescription", "Number of elements in the array");
const FVertexInterface NodeInterface = GetDefaultInterface();
FNodeClassMetadata NodeClassMetadata = MetasoundArrayNodesPrivate::CreateArrayNodeClassMetadata(DataTypeName, OperatorName, NodeDisplayName, NodeDescription, NodeInterface);
NodeClassMetadata.Keywords.Append({
METASOUND_LOCTEXT("ArrayNumKeyword_Length", "length"),
METASOUND_LOCTEXT("ArrayNumKeyword_Size", "size"),
});
return NodeClassMetadata;
};
static const FNodeClassMetadata Metadata = CreateNodeClassMetadata();
return Metadata;
}
static TUniquePtr<IOperator> CreateOperator(const FBuildOperatorParams& InParams, FBuildResults& OutResults)
{
using namespace ArrayNodeVertexNames;
using namespace MetasoundArrayNodesPrivate;
const FInputVertexInterfaceData& InputData = InParams.InputData;
// Get the input array or construct an empty one.
FArrayDataReadReference Array = InputData.GetOrCreateDefaultDataReadReference<ArrayType>(METASOUND_GET_PARAM_NAME(InputArray), InParams.OperatorSettings);
return MakeUnique<TArrayNumOperator>(Array);
}
TArrayNumOperator(FArrayDataReadReference InArray)
: Array(InArray)
, Num(TDataWriteReference<int32>::CreateNew())
{
// Initialize value for downstream nodes.
*Num = Array->Num();
}
virtual ~TArrayNumOperator() = default;
virtual FDataReferenceCollection GetInputs() const override
{
checkNoEntry();
return {};
}
virtual FDataReferenceCollection GetOutputs() const override
{
checkNoEntry();
return {};
}
virtual void BindInputs(FInputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputArray), Array);
}
virtual void BindOutputs(FOutputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(OutputNum), Num);
}
void Execute()
{
*Num = Array->Num();
}
void Reset(const IOperator::FResetParams& InParams)
{
Execute();
}
private:
FArrayDataReadReference Array;
TDataWriteReference<int32> Num;
};
template<typename ArrayType>
using TArrayNumNode = TNodeFacade<TArrayNumOperator<ArrayType>>;
/** TArrayGetOperator copies a value from the array to the output when
* a trigger occurs. Initially, the output value is default constructed and
* will remain that way until until a trigger is encountered.
*/
template<typename ArrayType>
class TArrayGetOperator : public TExecutableOperator<TArrayGetOperator<ArrayType>>
{
public:
using FArrayDataReadReference = TDataReadReference<ArrayType>;
using ElementType = typename MetasoundArrayNodesPrivate::TArrayElementType<ArrayType>::Type;
static const FVertexInterface& GetDefaultInterface()
{
using namespace ArrayNodeVertexNames;
static const FVertexInterface DefaultInterface(
FInputVertexInterface(
TInputDataVertex<FTrigger>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputTriggerGet)),
TInputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputArray)),
TInputDataVertex<int32>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputIndex))
),
FOutputVertexInterface(
TOutputDataVertex<ElementType>(METASOUND_GET_PARAM_NAME_AND_METADATA(OutputValue))
)
);
return DefaultInterface;
}
static const FNodeClassMetadata& GetNodeInfo()
{
auto CreateNodeClassMetadata = []() -> FNodeClassMetadata
{
const FName DataTypeName = GetMetasoundDataTypeName<ArrayType>();
const FName OperatorName = TEXT("Get");
const FText NodeDisplayName = METASOUND_LOCTEXT_FORMAT("ArrayOpArrayGetDisplayNamePattern", "Get ({0})", GetMetasoundDataTypeDisplayText<ArrayType>());
const FText NodeDescription = METASOUND_LOCTEXT("ArrayOpArrayGetDescription", "Get element at index in array.");
const FVertexInterface NodeInterface = GetDefaultInterface();
return MetasoundArrayNodesPrivate::CreateArrayNodeClassMetadata(DataTypeName, OperatorName, NodeDisplayName, NodeDescription, NodeInterface);
};
static const FNodeClassMetadata Metadata = CreateNodeClassMetadata();
return Metadata;
}
struct FInitParams
{
TDataReadReference<FTrigger> Trigger;
FArrayDataReadReference Array;
TDataReadReference<int32> Index;
#if WITH_METASOUND_DEBUG_ENVIRONMENT
FString GraphName;
#endif
};
static TUniquePtr<IOperator> CreateOperator(const FBuildOperatorParams& InParams, FBuildResults& OutResults)
{
using namespace ArrayNodeVertexNames;
using namespace MetasoundArrayNodesPrivate;
const FInputVertexInterfaceData& InputData = InParams.InputData;
// Input Trigger
TDataReadReference<FTrigger> Trigger = InputData.GetOrCreateDefaultDataReadReference<FTrigger>(METASOUND_GET_PARAM_NAME(InputTriggerGet), InParams.OperatorSettings);
// Input Array
FArrayDataReadReference Array = InputData.GetOrCreateDefaultDataReadReference<ArrayType>(METASOUND_GET_PARAM_NAME(InputArray), InParams.OperatorSettings);
// Input Index
TDataReadReference<int32> Index = InputData.GetOrCreateDefaultDataReadReference<int32>(METASOUND_GET_PARAM_NAME(InputIndex), InParams.OperatorSettings);
#if WITH_METASOUND_DEBUG_ENVIRONMENT
FString GraphName;
if (InParams.Environment.Contains<FString>(Frontend::SourceInterface::Environment::GraphName))
{
GraphName = InParams.Environment.GetValue<FString>(Frontend::SourceInterface::Environment::GraphName);
}
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
FInitParams OperatorInitParams
{
Trigger
, Array
, Index
#if WITH_METASOUND_DEBUG_ENVIRONMENT
, GraphName
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
};
return MakeUnique<TArrayGetOperator>(InParams.OperatorSettings, MoveTemp(OperatorInitParams));
}
TArrayGetOperator(const FOperatorSettings& InSettings, FInitParams&& InParams)
: Trigger(InParams.Trigger)
, Array(InParams.Array)
, Index(InParams.Index)
, Value(TDataWriteReferenceFactory<ElementType>::CreateExplicitArgs(InSettings))
#if WITH_METASOUND_DEBUG_ENVIRONMENT
, GraphName(InParams.GraphName)
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
{
const int32 IndexValue = *Index;
const ArrayType& ArrayRef = *Array;
if ((IndexValue >= 0) && (IndexValue < ArrayRef.Num()))
{
*Value = ArrayRef[IndexValue];
}
}
virtual ~TArrayGetOperator() = default;
virtual FDataReferenceCollection GetInputs() const override
{
checkNoEntry();
return {};
}
virtual FDataReferenceCollection GetOutputs() const override
{
checkNoEntry();
return {};
}
virtual void BindInputs(FInputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputTriggerGet), Trigger);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputArray), Array);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputIndex), Index);
}
virtual void BindOutputs(FOutputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(OutputValue), Value);
}
void Execute()
{
// Only perform get on trigger.
if (*Trigger)
{
const int32 IndexValue = *Index;
const ArrayType& ArrayRef = *Array;
if ((IndexValue >= 0) && (IndexValue < ArrayRef.Num()))
{
*Value = ArrayRef[IndexValue];
}
#if WITH_METASOUND_DEBUG_ENVIRONMENT
else
{
UE_LOG(LogMetaSound, Warning, TEXT("Attempt to get value at invalid index [ArraySize:%d, Index:%d] in MetaSound Graph \"%s\"."), ArrayRef.Num(), IndexValue, *GraphName);
}
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
}
}
void Reset(const IOperator::FResetParams& InParams)
{
const int32 IndexValue = *Index;
const ArrayType& ArrayRef = *Array;
if ((IndexValue >= 0) && (IndexValue < ArrayRef.Num()))
{
*Value = ArrayRef[IndexValue];
}
else
{
*Value = TDataTypeFactory<ElementType>::CreateExplicitArgs(InParams.OperatorSettings);
}
}
private:
TDataReadReference<FTrigger> Trigger;
FArrayDataReadReference Array;
TDataReadReference<int32> Index;
TDataWriteReference<ElementType> Value;
#if WITH_METASOUND_DEBUG_ENVIRONMENT
FString GraphName;
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
};
template<typename ArrayType>
using TArrayGetNode = TNodeFacade<TArrayGetOperator<ArrayType>>;
/** TArraySetOperator sets an element in an array to a specific value. */
template<typename ArrayType>
class TArraySetOperator : public TExecutableOperator<TArraySetOperator<ArrayType>>
{
public:
using FArrayDataReadReference = TDataReadReference<ArrayType>;
using FArrayDataWriteReference = TDataWriteReference<ArrayType>;
using ElementType = typename MetasoundArrayNodesPrivate::TArrayElementType<ArrayType>::Type;
static const FVertexInterface& GetDefaultInterface()
{
using namespace ArrayNodeVertexNames;
static const FVertexInterface DefaultInterface(
FInputVertexInterface(
TInputDataVertex<FTrigger>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputTriggerSet)),
TInputDataVertex<ArrayType>(InputInitialArrayName, FDataVertexMetadata { InputInitialArrayTooltip, InputInitialArrayDisplayName }),
TInputDataVertex<int32>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputIndex)),
TInputDataVertex<ElementType>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputValue))
),
FOutputVertexInterface(
TOutputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(OutputArraySet))
)
);
return DefaultInterface;
}
static const FNodeClassMetadata& GetNodeInfo()
{
auto CreateNodeClassMetadata = []() -> FNodeClassMetadata
{
const FName DataTypeName = GetMetasoundDataTypeName<ArrayType>();
const FName OperatorName = TEXT("Set");
const FText NodeDisplayName = METASOUND_LOCTEXT_FORMAT("ArrayOpArraySetDisplayNamePattern", "Set ({0})", GetMetasoundDataTypeDisplayText<ArrayType>());
const FText NodeDescription = METASOUND_LOCTEXT("ArrayOpArraySetDescription", "Set element at index in array.");
const FVertexInterface NodeInterface = GetDefaultInterface();
return MetasoundArrayNodesPrivate::CreateArrayNodeClassMetadata(DataTypeName, OperatorName, NodeDisplayName, NodeDescription, NodeInterface);
};
static const FNodeClassMetadata Metadata = CreateNodeClassMetadata();
return Metadata;
}
struct FInitParams
{
TDataReadReference<FTrigger> Trigger;
FArrayDataReadReference InitArray;
FArrayDataWriteReference Array;
TDataReadReference<int32> Index;
TDataReadReference<ElementType> Value;
#if WITH_METASOUND_DEBUG_ENVIRONMENT
FString GraphName;
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
};
static TUniquePtr<IOperator> CreateOperator(const FBuildOperatorParams& InParams, FBuildResults& OutResults)
{
using namespace ArrayNodeVertexNames;
using namespace MetasoundArrayNodesPrivate;
const FInputVertexInterfaceData& InputData = InParams.InputData;
TDataReadReference<FTrigger> Trigger = InputData.GetOrCreateDefaultDataReadReference<FTrigger>(METASOUND_GET_PARAM_NAME(InputTriggerSet), InParams.OperatorSettings);
FArrayDataReadReference InitArray = InputData.GetOrCreateDefaultDataReadReference<ArrayType>(InputInitialArrayName, InParams.OperatorSettings);
FArrayDataWriteReference Array = TDataWriteReferenceFactory<ArrayType>::CreateExplicitArgs(InParams.OperatorSettings, *InitArray);
TDataReadReference<int32> Index = InputData.GetOrCreateDefaultDataReadReference<int32>(METASOUND_GET_PARAM_NAME(InputIndex), InParams.OperatorSettings);
TDataReadReference<ElementType> Value = InputData.GetOrCreateDefaultDataReadReference<ElementType>(METASOUND_GET_PARAM_NAME(InputValue), InParams.OperatorSettings);
#if WITH_METASOUND_DEBUG_ENVIRONMENT
FString GraphName;
if (InParams.Environment.Contains<FString>(Frontend::SourceInterface::Environment::GraphName))
{
GraphName = InParams.Environment.GetValue<FString>(Frontend::SourceInterface::Environment::GraphName);
}
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
FInitParams OperatorInitParams
{
Trigger
, InitArray
, Array
, Index
, Value
#if WITH_METASOUND_DEBUG_ENVIRONMENT
, GraphName
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
};
return MakeUnique<TArraySetOperator>(InParams.OperatorSettings, MoveTemp(OperatorInitParams));
}
TArraySetOperator(const FOperatorSettings& InSettings, FInitParams&& InParams)
: OperatorSettings(InSettings)
, Trigger(InParams.Trigger)
, InitArray(InParams.InitArray)
, Array(InParams.Array)
, Index(InParams.Index)
, Value(InParams.Value)
#if WITH_METASOUND_DEBUG_ENVIRONMENT
, GraphName(InParams.GraphName)
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
{
}
virtual ~TArraySetOperator() = default;
virtual FDataReferenceCollection GetInputs() const override
{
checkNoEntry();
return {};
}
virtual FDataReferenceCollection GetOutputs() const override
{
checkNoEntry();
return {};
}
virtual void BindInputs(FInputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputTriggerSet), Trigger);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputArray), InitArray);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputIndex), Index);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputValue), Value);
}
virtual void BindOutputs(FOutputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(OutputArraySet), Array);
}
void Execute()
{
if (*Trigger)
{
const int32 IndexValue = *Index;
ArrayType& ArrayRef = *Array;
if ((IndexValue >= 0) && (IndexValue < ArrayRef.Num()))
{
ArrayRef[IndexValue] = *Value;
}
#if WITH_METASOUND_DEBUG_ENVIRONMENT
else
{
UE_LOG(LogMetaSound, Warning, TEXT("Attempt to set value at invalid index [ArraySize:%d, Index:%d] in MetaSound Graph \"%s\"."), ArrayRef.Num(), IndexValue, *GraphName);
}
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
}
}
void Reset(const IOperator::FResetParams& Inparams)
{
*Array = *InitArray;
}
private:
FOperatorSettings OperatorSettings;
TDataReadReference<FTrigger> Trigger;
FArrayDataReadReference InitArray;
FArrayDataWriteReference Array;
TDataReadReference<int32> Index;
TDataReadReference<ElementType> Value;
#if WITH_METASOUND_DEBUG_ENVIRONMENT
FString GraphName;
#endif // WITH_METASOUND_DEBUG_ENVIRONMENT
};
template<typename ArrayType>
using TArraySetNode = TNodeFacade<TArraySetOperator<ArrayType>>;
/** TArrayConcatOperator concatenates two arrays on trigger. */
template<typename ArrayType>
class TArrayConcatOperator : public TExecutableOperator<TArrayConcatOperator<ArrayType>>
{
public:
using FArrayDataReadReference = TDataReadReference<ArrayType>;
using FArrayDataWriteReference = TDataWriteReference<ArrayType>;
using ElementType = typename MetasoundArrayNodesPrivate::TArrayElementType<ArrayType>::Type;
static const FVertexInterface& GetDefaultInterface()
{
using namespace ArrayNodeVertexNames;
static const FVertexInterface DefaultInterface(
FInputVertexInterface(
TInputDataVertex<FTrigger>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputTriggerGet)),
TInputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputLeftArray)),
TInputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputRightArray))
),
FOutputVertexInterface(
TOutputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(OutputArrayConcat))
)
);
return DefaultInterface;
}
static const FNodeClassMetadata& GetNodeInfo()
{
auto CreateNodeClassMetadata = []() -> FNodeClassMetadata
{
const FName DataTypeName = GetMetasoundDataTypeName<ArrayType>();
const FName OperatorName = TEXT("Concat");
const FText NodeDisplayName = METASOUND_LOCTEXT_FORMAT("ArrayOpArrayConcatDisplayNamePattern", "Concatenate ({0})", GetMetasoundDataTypeDisplayText<ArrayType>());
const FText NodeDescription = METASOUND_LOCTEXT("ArrayOpArrayConcatDescription", "Concatenates two arrays on trigger.");
const FVertexInterface NodeInterface = GetDefaultInterface();
FNodeClassMetadata NodeClassMetadata = MetasoundArrayNodesPrivate::CreateArrayNodeClassMetadata(DataTypeName, OperatorName, NodeDisplayName, NodeDescription, NodeInterface);
NodeClassMetadata.Keywords.Append({
METASOUND_LOCTEXT("ArrayConcatKeyword_Append", "append"),
});
return NodeClassMetadata;
};
static const FNodeClassMetadata Metadata = CreateNodeClassMetadata();
return Metadata;
}
static TUniquePtr<IOperator> CreateOperator(const FBuildOperatorParams& InParams, FBuildResults& OutResults)
{
using namespace ArrayNodeVertexNames;
using namespace MetasoundArrayNodesPrivate;
const FInputVertexInterfaceData& InputData = InParams.InputData;
TDataReadReference<FTrigger> Trigger = InputData.GetOrCreateDefaultDataReadReference<FTrigger>(METASOUND_GET_PARAM_NAME(InputTriggerGet), InParams.OperatorSettings);
FArrayDataReadReference LeftArray = InputData.GetOrCreateDefaultDataReadReference<ArrayType>(METASOUND_GET_PARAM_NAME(InputLeftArray), InParams.OperatorSettings);
FArrayDataReadReference RightArray = InputData.GetOrCreateDefaultDataReadReference<ArrayType>(METASOUND_GET_PARAM_NAME(InputRightArray), InParams.OperatorSettings);
return MakeUnique<TArrayConcatOperator>(Trigger, LeftArray, RightArray);
}
TArrayConcatOperator(TDataReadReference<FTrigger> InTrigger, FArrayDataReadReference InLeftArray, FArrayDataReadReference InRightArray)
: Trigger(InTrigger)
, LeftArray(InLeftArray)
, RightArray(InRightArray)
, OutArray(TDataWriteReference<ArrayType>::CreateNew())
{
}
virtual ~TArrayConcatOperator() = default;
virtual FDataReferenceCollection GetInputs() const override
{
checkNoEntry();
return {};
}
virtual FDataReferenceCollection GetOutputs() const override
{
checkNoEntry();
return {};
}
virtual void BindInputs(FInputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputTriggerGet), Trigger);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputLeftArray), LeftArray);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputRightArray), RightArray);
}
virtual void BindOutputs(FOutputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(OutputArrayConcat), OutArray);
}
void Execute()
{
if (*Trigger)
{
*OutArray = *LeftArray;
OutArray->Append(*RightArray);
}
}
void Reset(const IOperator::FResetParams& InParams)
{
OutArray->Reset();
}
private:
TDataReadReference<FTrigger> Trigger;
FArrayDataReadReference LeftArray;
FArrayDataReadReference RightArray;
FArrayDataWriteReference OutArray;
};
template<typename ArrayType>
using TArrayConcatNode = TNodeFacade<TArrayConcatOperator<ArrayType>>;
/** TArraySubsetOperator slices an array on trigger. */
template<typename ArrayType>
class TArraySubsetOperator : public TExecutableOperator<TArraySubsetOperator<ArrayType>>
{
public:
using FArrayDataReadReference = TDataReadReference<ArrayType>;
using FArrayDataWriteReference = TDataWriteReference<ArrayType>;
using ElementType = typename MetasoundArrayNodesPrivate::TArrayElementType<ArrayType>::Type;
static const FVertexInterface& GetDefaultInterface()
{
using namespace ArrayNodeVertexNames;
static const FVertexInterface DefaultInterface(
FInputVertexInterface(
TInputDataVertex<FTrigger>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputTriggerGet)),
TInputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputArray)),
TInputDataVertex<int32>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputStartIndex)),
TInputDataVertex<int32>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputEndIndex))
),
FOutputVertexInterface(
TOutputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(OutputArraySubset))
)
);
return DefaultInterface;
}
static const FNodeClassMetadata& GetNodeInfo()
{
auto CreateNodeClassMetadata = []() -> FNodeClassMetadata
{
const FName DataTypeName = GetMetasoundDataTypeName<ArrayType>();
const FName OperatorName = TEXT("Subset");
const FText NodeDisplayName = METASOUND_LOCTEXT_FORMAT("ArrayOpArraySubsetDisplayNamePattern", "Subset ({0})", GetMetasoundDataTypeDisplayText<ArrayType>());
const FText NodeDescription = METASOUND_LOCTEXT("ArrayOpArraySubsetDescription", "Subset array on trigger.");
const FVertexInterface NodeInterface = GetDefaultInterface();
FNodeClassMetadata NodeClassMetadata = MetasoundArrayNodesPrivate::CreateArrayNodeClassMetadata(DataTypeName, OperatorName, NodeDisplayName, NodeDescription, NodeInterface);
NodeClassMetadata.Keywords.Append({
METASOUND_LOCTEXT("ArraySubsetKeyword_Slice", "slice"),
});
return NodeClassMetadata;
};
static const FNodeClassMetadata Metadata = CreateNodeClassMetadata();
return Metadata;
}
static TUniquePtr<IOperator> CreateOperator(const FBuildOperatorParams& InParams, FBuildResults& OutResults)
{
using namespace ArrayNodeVertexNames;
using namespace MetasoundArrayNodesPrivate;
const FInputVertexInterfaceData& InputData = InParams.InputData;
TDataReadReference<FTrigger> Trigger = InputData.GetOrCreateDefaultDataReadReference<FTrigger>(METASOUND_GET_PARAM_NAME(InputTriggerGet), InParams.OperatorSettings);
FArrayDataReadReference InArray = InputData.GetOrCreateDefaultDataReadReference<ArrayType>(METASOUND_GET_PARAM_NAME(InputArray), InParams.OperatorSettings);
TDataReadReference<int32> StartIndex = InputData.GetOrCreateDefaultDataReadReference<int32>(METASOUND_GET_PARAM_NAME(InputStartIndex), InParams.OperatorSettings);
TDataReadReference<int32> EndIndex = InputData.GetOrCreateDefaultDataReadReference<int32>(METASOUND_GET_PARAM_NAME(InputEndIndex), InParams.OperatorSettings);
TDataWriteReference<ArrayType> OutputArray = TDataWriteReferenceFactory<ArrayType>::CreateExplicitArgs(InParams.OperatorSettings);
return MakeUnique<TArraySubsetOperator>(Trigger, InArray, StartIndex, EndIndex, OutputArray);
}
TArraySubsetOperator(TDataReadReference<FTrigger> InTrigger, FArrayDataReadReference InInputArray, TDataReadReference<int32> InStartIndex, TDataReadReference<int32> InEndIndex, TDataWriteReference<ArrayType> InOutputArray)
: Trigger(InTrigger)
, InputArray(InInputArray)
, StartIndex(InStartIndex)
, EndIndex(InEndIndex)
, OutputArray(InOutputArray)
{
}
virtual ~TArraySubsetOperator() = default;
virtual FDataReferenceCollection GetInputs() const override
{
checkNoEntry();
return {};
}
virtual FDataReferenceCollection GetOutputs() const override
{
checkNoEntry();
return {};
}
virtual void BindInputs(FInputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputTriggerGet), Trigger);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputArray), InputArray);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputStartIndex), StartIndex);
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputEndIndex), EndIndex);
}
virtual void BindOutputs(FOutputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(OutputArraySubset), OutputArray);
}
void Execute()
{
if (*Trigger)
{
OutputArray->Reset();
const ArrayType& InputArrayRef = *InputArray;
const int32 StartIndexValue = FMath::Max(0, *StartIndex);
const int32 EndIndexValue = FMath::Min(InputArrayRef.Num(), *EndIndex + 1);
if (StartIndexValue < EndIndexValue)
{
const int32 Num = EndIndexValue - StartIndexValue;
OutputArray->Append(&InputArrayRef[StartIndexValue], Num);
}
}
}
void Reset(const IOperator::FResetParams& InParams)
{
OutputArray->Reset();
}
private:
TDataReadReference<FTrigger> Trigger;
FArrayDataReadReference InputArray;
TDataReadReference<int32> StartIndex;
TDataReadReference<int32> EndIndex;
FArrayDataWriteReference OutputArray;
};
template<typename ArrayType>
using TArraySubsetNode = TNodeFacade<TArraySubsetOperator<ArrayType>>;
/** TArrayLastIndex gets last index of an array. */
template<typename ArrayType>
class TArrayLastIndexOperator : public TExecutableOperator<TArrayLastIndexOperator<ArrayType>>
{
public:
using FArrayDataReadReference = TDataReadReference<ArrayType>;
// Declare the vertex interface
static const FVertexInterface& GetDefaultInterface()
{
using namespace ArrayNodeVertexNames;
static const FVertexInterface DefaultInterface(
FInputVertexInterface(
TInputDataVertex<ArrayType>(METASOUND_GET_PARAM_NAME_AND_METADATA(InputArray))
),
FOutputVertexInterface(
TOutputDataVertex<int32>(METASOUND_GET_PARAM_NAME_AND_METADATA(OutputLastIndex))
)
);
return DefaultInterface;
}
static const FNodeClassMetadata& GetNodeInfo()
{
auto CreateNodeClassMetadata = []() -> FNodeClassMetadata
{
const FName DataTypeName = GetMetasoundDataTypeName<ArrayType>();
const FName OperatorName = TEXT("GetLastIndex");
const FText NodeDisplayName = METASOUND_LOCTEXT_FORMAT("ArrayOpArrayLastIndexDisplayNamePattern", "Get Last Index ({0})", GetMetasoundDataTypeDisplayText<ArrayType>());
const FText NodeDescription = METASOUND_LOCTEXT("ArrayOpArrayLastIndexDescription", "Last index of the array");
const FVertexInterface NodeInterface = GetDefaultInterface();
return MetasoundArrayNodesPrivate::CreateArrayNodeClassMetadata(DataTypeName, OperatorName, NodeDisplayName, NodeDescription, NodeInterface);
};
static const FNodeClassMetadata Metadata = CreateNodeClassMetadata();
return Metadata;
}
static TUniquePtr<IOperator> CreateOperator(const FBuildOperatorParams& InParams, FBuildResults& OutResults)
{
using namespace ArrayNodeVertexNames;
using namespace MetasoundArrayNodesPrivate;
const FInputVertexInterfaceData& InputData = InParams.InputData;
// Get the input array or construct an empty one.
FArrayDataReadReference Array = InputData.GetOrCreateDefaultDataReadReference<ArrayType>(METASOUND_GET_PARAM_NAME(InputArray), InParams.OperatorSettings);
return MakeUnique<TArrayLastIndexOperator>(Array);
}
TArrayLastIndexOperator(FArrayDataReadReference InArray)
: Array(InArray)
, LastIndex(TDataWriteReference<int32>::CreateNew())
{
// Initialize value for downstream nodes.
*LastIndex = Array->Num() - 1;
}
virtual ~TArrayLastIndexOperator() = default;
virtual void BindInputs(FInputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(InputArray), Array);
}
virtual void BindOutputs(FOutputVertexInterfaceData& InVertexData) override
{
using namespace ArrayNodeVertexNames;
InVertexData.BindReadVertex(METASOUND_GET_PARAM_NAME(OutputLastIndex), LastIndex);
}
void Execute()
{
*LastIndex = Array->Num() - 1;
}
void Reset(const IOperator::FResetParams& InParams)
{
Execute();
}
private:
FArrayDataReadReference Array;
TDataWriteReference<int32> LastIndex;
};
template<typename ArrayType>
using TArrayLastIndexNode = TNodeFacade<TArrayLastIndexOperator<ArrayType>>;
} // namespace Metasound
#undef LOCTEXT_NAMESPACE