1 // 2 // Copyright © 2017,2022 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 class ScopedTensorHandle; 13 14 /// This layer represents a convolution 2d operation. 15 class Convolution2dLayer : public LayerWithParameters<Convolution2dDescriptor> 16 { 17 public: 18 19 /// Makes a workload for the Convolution2d type. 20 /// @param [in] graph The graph where this layer can be found. 21 /// @param [in] factory The workload factory which will create the workload. 22 /// @return A pointer to the created workload, or nullptr if not created. 23 virtual std::unique_ptr<IWorkload> CreateWorkload(const IWorkloadFactory& factory) const override; 24 25 /// Creates a dynamically-allocated copy of this layer. 26 /// @param [in] graph The graph into which this layer is being cloned. 27 Convolution2dLayer* Clone(Graph& graph) const override; 28 29 /// Check if the input tensor shape(s) 30 /// will lead to a valid configuration of @ref Convolution2dLayer. 31 /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated. 32 void ValidateTensorShapesFromInputs() override; 33 34 /// By default returns inputShapes if the number of inputs are equal to number of outputs, 35 /// otherwise infers the output shapes from given input shapes and layer properties. 36 /// @param [in] inputShapes The input shapes layer has. 37 /// @return A vector to the inferred output shape. 38 std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override; 39 40 void ExecuteStrategy(IStrategy& strategy) const override; 41 42 void SerializeLayerParameters(ParameterStringifyFunction& fn) const override; 43 44 /// This layer does not have any data stored, weights and bias are now stored in constant layers. 45 /// We do not want to release the data in the constant layer, that is why we override with an empty function. ReleaseConstantData()46 void ReleaseConstantData() override {} 47 48 protected: 49 /// Constructor to create a Convolution2dLayer. 50 /// @param [in] param Convolution2dDescriptor to configure the convolution2d operation. 51 /// @param [in] name Optional name for the layer. 52 Convolution2dLayer(const Convolution2dDescriptor& param, const char* name); 53 54 /// Default destructor 55 ~Convolution2dLayer() = default; 56 57 /// Retrieve the handles to the constant values connected to the layer. 58 /// @return A vector of the constant tensors connected to the layer. 59 ImmutableConstantTensors GetConstantTensorsByRef() const override; 60 }; 61 62 } // namespace 63