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UnrealEngine/Engine/Source/Runtime/NNE/Public/NNERuntimeNPU.h
2025-05-18 13:04:45 +08:00

88 lines
2.6 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "NNERuntimeRunSync.h"
#include "NNEStatus.h"
#include "UObject/Interface.h"
#include "NNERuntimeNPU.generated.h"
class UNNEModelData;
namespace UE::NNE
{
/**
* The interface of a model instance that can run on NPU.
*
* Use UE::NNE::IModelNPU::CreateModelInstance() to get a model instance.
* Use UE::NNE::GetRuntime<INNERuntimeNPU>(RuntimeName) to get a runtime capable of creating NPU models.
*/
class IModelInstanceNPU : public IModelInstanceRunSync
{
};
/**
* The interface of a model capable of creating model instance that can run on NPU.
*
* Use UE::NNE::GetRuntime<INNERuntimeNPU>(RuntimeName) to get a runtime capable of creating NPU models.
*/
class IModelNPU
{
public:
virtual ~IModelNPU() = default;
/**
* Create a model instance for inference
*
* The runtime have the opportunity to share the model weights among multiple IModelInstanceNPU created from an IModelNPU instance, however this is not mandatory.
* The caller can decide to convert the result into a shared pointer if required (e.g. if the model needs to be shared with an async task for evaluation).
*
* @return A caller owned model representing the neural network instance created.
*/
virtual TSharedPtr<UE::NNE::IModelInstanceNPU> CreateModelInstanceNPU() = 0;
};
} // UE::NNE
UINTERFACE(MinimalAPI)
class UNNERuntimeNPU : public UInterface
{
GENERATED_BODY()
};
/**
* The interface of a neural network runtime capable of creating NPU models.
*
* Call UE::NNE::GetRuntime<INNERuntimeNPU>(RuntimeName) to get a runtime implementing this interface.
*/
class INNERuntimeNPU
{
GENERATED_BODY()
public:
using ECanCreateModelNPUStatus = UE::NNE::EResultStatus;
/**
* Check if the runtime is able to create a model given some ModelData.
*
* @param ModelData The model data for which to create a model.
* @return True if the runtime is able to create the model, false otherwise.
*/
virtual ECanCreateModelNPUStatus CanCreateModelNPU(const TObjectPtr<UNNEModelData> ModelData) const = 0;
/**
* Create a model given some ModelData.
*
* The caller must make sure ModelData remains valid throughout the call.
* ModelData is not required anymore after the model has been created.
* The caller can decide to convert the result into a shared pointer if required (e.g. if the model needs to be shared with an async task for evaluation).
*
* @param ModelData The model data for which to create a model.
* @return A caller owned model representing the neural network created from ModelData.
*/
virtual TSharedPtr<UE::NNE::IModelNPU> CreateModelNPU(const TObjectPtr<UNNEModelData> ModelData) = 0;
};