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 stack operation. 13 class StackLayer : public LayerWithParameters<StackDescriptor> 14 { 15 public: 16 /// Makes a workload for the Stack 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 /// Creates a dynamically-allocated copy of this layer. 23 /// @param [in] graph The graph into which this layer is being cloned. 24 StackLayer* Clone(Graph& graph) const override; 25 26 /// Check if the input tensor shape(s) 27 /// will lead to a valid configuration of @ref StackLayer. 28 /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated. 29 void ValidateTensorShapesFromInputs() override; 30 31 /// By default returns inputShapes if the number of inputs are equal to number of outputs, 32 /// otherwise infers the output shapes from given input shapes and layer properties. 33 /// @param [in] inputShapes The input shapes layer has. 34 /// @return A vector to the inferred output shape. 35 std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override; 36 37 void Accept(ILayerVisitor& visitor) const override; 38 39 protected: 40 /// Constructor to create a StackLayer. 41 /// @param [in] param StackDescriptor to configure the stack operation. 42 /// @param [in] name Optional name for the layer. 43 StackLayer(const StackDescriptor& param, const char* name); 44 45 /// Default destructor 46 ~StackLayer() = default; 47 }; 48 49 } // namespace 50