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 virtual void CreateTensorHandles(const TensorHandleFactoryRegistry& registry, 28 const IWorkloadFactory& factory, 29 const bool IsMemoryManaged = true) override; 30 31 /// Creates a dynamically-allocated copy of this layer. 32 /// @param [in] graph The graph into which this layer is being cloned. 33 ConcatLayer* Clone(Graph& graph) const override; 34 35 /// Check if the input tensor shape(s) 36 /// will lead to a valid configuration of @ref ConcatLayer. 37 /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated. 38 void ValidateTensorShapesFromInputs() override; 39 40 /// By default returns inputShapes if the number of inputs are equal to number of outputs, 41 /// otherwise infers the output shapes from given input shapes and layer properties. 42 /// @param [in] inputShapes The input shapes layer has. 43 /// @return A vector to the inferred output shape. 44 std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override; 45 46 void Accept(ILayerVisitor& visitor) const override; 47 48 protected: 49 /// Constructor to create a ConcatLayer. 50 /// @param [in] param OriginsDescriptor to configure the concat operation. 51 /// @param [in] name Optional name for the layer. 52 ConcatLayer(const OriginsDescriptor& param, const char* name); 53 54 /// Default destructor 55 ~ConcatLayer() = default; 56 57 private: 58 template <typename FactoryType> 59 void CreateTensors(const TensorHandleFactoryRegistry& registry, const FactoryType& factory, bool isMemoryManaged); 60 61 }; 62 63 } // namespace 64