1 // 2 // Copyright © 2017 Arm Ltd and Contributors. All rights reserved. 3 // SPDX-License-Identifier: MIT 4 // 5 6 #pragma once 7 8 #include "LayerWithParameters.hpp" 9 10 namespace armnn 11 { 12 13 /// This layer represents a Gather operator. 14 class GatherLayer : public LayerWithParameters<GatherDescriptor> 15 { 16 public: 17 /// Makes a workload for the Gather type. 18 /// @param [in] graph The graph where this layer can be found. 19 /// @param [in] factory The workload factory which will create the workload. 20 /// @return A pointer to the created workload, or nullptr if not created. 21 virtual std::unique_ptr<IWorkload> CreateWorkload(const IWorkloadFactory& factory) const override; 22 23 /// Creates a dynamically-allocated copy of this layer. 24 /// @param [in] graph The graph into which this layer is being cloned. 25 GatherLayer* Clone(Graph& graph) const override; 26 27 /// Infers the output shapes from given input shapes and layer properties. 28 /// @param [in] inputShapes The input shapes layer has. 29 /// @return A vector to the inferred output shape. 30 std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override; 31 32 /// Check if the input tensor shape(s). 33 /// will lead to a valid configuration of @ref GatherLayer. 34 /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validate. 35 void ValidateTensorShapesFromInputs() override; 36 37 void ExecuteStrategy(IStrategy& strategy) const override; 38 39 protected: 40 /// Constructor to create a GatherLayer. 41 /// @param [in] param GatherDescriptor to configure the stack operation. 42 /// @param [in] name Optional name for the layer. 43 GatherLayer(const GatherDescriptor& param, const char* name); 44 45 /// Default destructor 46 ~GatherLayer() = default; 47 }; 48 49 } // namespace armnn 50