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 class ScopedCpuTensorHandle; 13 14 /// This layer represents a depthwise convolution 2d operation. 15 class DepthwiseConvolution2dLayer : public LayerWithParameters<DepthwiseConvolution2dDescriptor> 16 { 17 public: 18 /// A unique pointer to store Weight values. 19 std::unique_ptr<ScopedCpuTensorHandle> m_Weight; 20 /// A unique pointer to store Bias values. 21 std::unique_ptr<ScopedCpuTensorHandle> m_Bias; 22 23 /// Makes a workload for the DepthwiseConvolution2d type. 24 /// @param [in] graph The graph where this layer can be found. 25 /// @param [in] factory The workload factory which will create the workload. 26 /// @return A pointer to the created workload, or nullptr if not created. 27 virtual std::unique_ptr<IWorkload> CreateWorkload(const IWorkloadFactory& factory) const override; 28 29 /// Creates a dynamically-allocated copy of this layer. 30 /// @param [in] graph The graph into which this layer is being cloned. 31 DepthwiseConvolution2dLayer* Clone(Graph& graph) const override; 32 33 /// Check if the input tensor shape(s) 34 /// will lead to a valid configuration of @ref DepthwiseConvolution2dLayer. 35 /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated. 36 void ValidateTensorShapesFromInputs() override; 37 38 /// By default returns inputShapes if the number of inputs are equal to number of outputs, 39 /// otherwise infers the output shapes from given input shapes and layer properties. 40 /// @param [in] inputShapes The input shapes layer has. 41 /// @return A vector to the inferred output shape. 42 std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override; 43 44 void Accept(ILayerVisitor& visitor) const override; 45 46 void SerializeLayerParameters(ParameterStringifyFunction& fn) const override; 47 48 protected: 49 /// Constructor to create a DepthwiseConvolution2dLayer. 50 /// @param [in] param DepthwiseConvolution2dDescriptor to configure the depthwise convolution2d. 51 /// @param [in] name Optional name for the layer. 52 DepthwiseConvolution2dLayer(const DepthwiseConvolution2dDescriptor& param, const char* name); 53 54 /// Default destructor 55 ~DepthwiseConvolution2dLayer() = default; 56 57 /// Retrieve the handles to the constant values stored by the layer. 58 /// @return A vector of the constant tensors stored by this layer. 59 ConstantTensors GetConstantTensorsByRef() override; 60 }; 61 62 } // namespace 63