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Diffstat (limited to 'delegate/classic/include/armnn_delegate.hpp')
| -rw-r--r-- | delegate/classic/include/armnn_delegate.hpp | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/delegate/classic/include/armnn_delegate.hpp b/delegate/classic/include/armnn_delegate.hpp new file mode 100644 index 0000000000..8957dc87d6 --- /dev/null +++ b/delegate/classic/include/armnn_delegate.hpp @@ -0,0 +1,141 @@ +// +// Copyright © 2020-2023 Arm Ltd and Contributors. All rights reserved. +// SPDX-License-Identifier: MIT +// + +#pragma once + +#include <DelegateOptions.hpp> + +#include <tensorflow/lite/builtin_ops.h> +#include <tensorflow/lite/c/builtin_op_data.h> +#include <tensorflow/lite/c/common.h> +#include <tensorflow/lite/minimal_logging.h> +#include <tensorflow/lite/version.h> + +#if TF_MAJOR_VERSION > 2 || (TF_MAJOR_VERSION == 2 && TF_MINOR_VERSION > 3) +#define ARMNN_POST_TFLITE_2_3 +#endif + +#if TF_MAJOR_VERSION > 2 || (TF_MAJOR_VERSION == 2 && TF_MINOR_VERSION > 4) +#define ARMNN_POST_TFLITE_2_4 +#endif + +#if TF_MAJOR_VERSION > 2 || (TF_MAJOR_VERSION == 2 && TF_MINOR_VERSION > 5) +#define ARMNN_POST_TFLITE_2_5 +#endif + +namespace armnnDelegate +{ + +struct DelegateData +{ + DelegateData(const std::vector<armnn::BackendId>& backends) + : m_Backends(backends) + , m_Network(nullptr, nullptr) + {} + + const std::vector<armnn::BackendId> m_Backends; + armnn::INetworkPtr m_Network; + std::vector<armnn::IOutputSlot*> m_OutputSlotForNode; +}; + +// Forward decleration for functions initializing the ArmNN Delegate +DelegateOptions TfLiteArmnnDelegateOptionsDefault(); + +TfLiteDelegate* TfLiteArmnnDelegateCreate(armnnDelegate::DelegateOptions options); + +void TfLiteArmnnDelegateDelete(TfLiteDelegate* tfLiteDelegate); + +TfLiteStatus DoPrepare(TfLiteContext* context, TfLiteDelegate* delegate); + +/// ArmNN Delegate +class Delegate +{ + friend class ArmnnSubgraph; +public: + explicit Delegate(armnnDelegate::DelegateOptions options); + + TfLiteIntArray* IdentifyOperatorsToDelegate(TfLiteContext* context); + + TfLiteDelegate* GetDelegate(); + + /// Retrieve version in X.Y.Z form + static const std::string GetVersion(); + +private: + /** + * Returns a pointer to the armnn::IRuntime* this will be shared by all armnn_delegates. + */ + armnn::IRuntime* GetRuntime(const armnn::IRuntime::CreationOptions& options) + { + static armnn::IRuntimePtr instance = armnn::IRuntime::Create(options); + // Instantiated on first use. + return instance.get(); + } + + TfLiteDelegate m_Delegate = { + reinterpret_cast<void*>(this), // .data_ + DoPrepare, // .Prepare + nullptr, // .CopyFromBufferHandle + nullptr, // .CopyToBufferHandle + nullptr, // .FreeBufferHandle + kTfLiteDelegateFlagsNone, // .flags + nullptr, // .opaque_delegate_builder + }; + + /// ArmNN Runtime pointer + armnn::IRuntime* m_Runtime; + /// ArmNN Delegate Options + armnnDelegate::DelegateOptions m_Options; +}; + +/// ArmnnSubgraph class where parsing the nodes to ArmNN format and creating the ArmNN Graph +class ArmnnSubgraph +{ +public: + static ArmnnSubgraph* Create(TfLiteContext* tfLiteContext, + const TfLiteDelegateParams* parameters, + const Delegate* delegate); + + TfLiteStatus Prepare(TfLiteContext* tfLiteContext); + + TfLiteStatus Invoke(TfLiteContext* tfLiteContext, TfLiteNode* tfLiteNode); + + static TfLiteStatus VisitNode(DelegateData& delegateData, + TfLiteContext* tfLiteContext, + TfLiteRegistration* tfLiteRegistration, + TfLiteNode* tfLiteNode, + int nodeIndex); + +private: + ArmnnSubgraph(armnn::NetworkId networkId, + armnn::IRuntime* runtime, + std::vector<armnn::BindingPointInfo>& inputBindings, + std::vector<armnn::BindingPointInfo>& outputBindings) + : m_NetworkId(networkId), m_Runtime(runtime), m_InputBindings(inputBindings), m_OutputBindings(outputBindings) + {} + + static TfLiteStatus AddInputLayer(DelegateData& delegateData, + TfLiteContext* tfLiteContext, + const TfLiteIntArray* inputs, + std::vector<armnn::BindingPointInfo>& inputBindings); + + static TfLiteStatus AddOutputLayer(DelegateData& delegateData, + TfLiteContext* tfLiteContext, + const TfLiteIntArray* outputs, + std::vector<armnn::BindingPointInfo>& outputBindings); + + + /// The Network Id + armnn::NetworkId m_NetworkId; + /// ArmNN Rumtime + armnn::IRuntime* m_Runtime; + + // Binding information for inputs and outputs + std::vector<armnn::BindingPointInfo> m_InputBindings; + std::vector<armnn::BindingPointInfo> m_OutputBindings; + +}; + +} // armnnDelegate namespace
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