1 // 2 // Copyright © 2017 Arm Ltd and Contributors. All rights reserved. 3 // SPDX-License-Identifier: MIT 4 // 5 #pragma once 6 7 #include "LayerWithParameters.hpp" 8 9 namespace armnn 10 { 11 12 /// This layer represents a merge operation. 13 class ConcatLayer : public LayerWithParameters<OriginsDescriptor> 14 { 15 public: 16 /// Makes a workload for the Concat type. 17 /// @param [in] graph The graph where this layer can be found. 18 /// @param [in] factory The workload factory which will create the workload. 19 /// @return A pointer to the created workload, or nullptr if not created. 20 virtual std::unique_ptr<IWorkload> CreateWorkload(const IWorkloadFactory& factory) const override; 21 22 /// Set the outputs to be appropriate sub tensors of the input if sub tensors are supported 23 /// otherwise creates tensor handlers. 24 /// @param [in] registry Contains all the registered tensor handle factories available for use. 25 /// @param [in] factory The workload factory which will create the workload. 26 /// @param [in] IsMemoryManaged Determine whether or not to assign a memory manager during creation 27 /// @param [in] MemorySource Determine the source of memory e.g Malloc 28 virtual void CreateTensorHandles(const TensorHandleFactoryRegistry& registry, 29 const IWorkloadFactory& factory, 30 const bool IsMemoryManaged = true) override; 31 32 /// Creates a dynamically-allocated copy of this layer. 33 /// @param [in] graph The graph into which this layer is being cloned. 34 ConcatLayer* Clone(Graph& graph) const override; 35 36 /// Check if the input tensor shape(s) 37 /// will lead to a valid configuration of @ref ConcatLayer. 38 /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated. 39 void ValidateTensorShapesFromInputs() override; 40 41 /// By default returns inputShapes if the number of inputs are equal to number of outputs, 42 /// otherwise infers the output shapes from given input shapes and layer properties. 43 /// @param [in] inputShapes The input shapes layer has. 44 /// @return A vector to the inferred output shape. 45 std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override; 46 47 void ExecuteStrategy(IStrategy& strategy) const override; 48 49 protected: 50 /// Constructor to create a ConcatLayer. 51 /// @param [in] param OriginsDescriptor to configure the concat operation. 52 /// @param [in] name Optional name for the layer. 53 ConcatLayer(const OriginsDescriptor& param, const char* name); 54 55 /// Default destructor 56 ~ConcatLayer() = default; 57 58 private: 59 template <typename FactoryType> 60 void CreateTensors(const TensorHandleFactoryRegistry& registry, const FactoryType& factory, bool isMemoryManaged); 61 62 }; 63 64 } // namespace 65