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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include "LayerWithParameters.hpp"
namespace armnn
{
/// This layer represents a permutation operation.
class PermuteLayer : public LayerWithParameters<PermuteDescriptor>
{
public:
/// Makes a workload for the Permute type.
/// @param [in] graph The graph where this layer can be found.
/// @param [in] factory The workload factory which will create the workload.
/// @return A pointer to the created workload, or nullptr if not created.
virtual std::unique_ptr<IWorkload> CreateWorkload(const Graph& graph,
const IWorkloadFactory& factory) const override;
/// Creates a dynamically-allocated copy of this layer.
/// @param [in] graph The graph into which this layer is being cloned.
PermuteLayer* Clone(Graph& graph) const override;
/// Check if the input tensor shape(s)
/// will lead to a valid configuration of @ref PermuteLayer.
void ValidateTensorShapesFromInputs() override;
/// By default returns inputShapes if the number of inputs are equal to number of outputs,
/// otherwise infers the output shapes from given input shapes and layer properties.
/// @param [in] inputShapes The input shapes layer has.
/// @return A vector to the inferred output shape.
std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override;
/// @return a permutation vector represents the memory layout of the tensor elements.
const PermutationVector& GetPermutation() const
{
return m_Param.m_DimMappings;
}
/// Indicates if the other layer received is inverse of this one.
/// @param other The other layer to be compared with.
/// @return true if other layer is inverse of this false otherwise.
bool IsInverse(const Layer& other) const
{
return (other.GetType() == LayerType::Permute) &&
GetPermutation().IsInverse(boost::polymorphic_downcast<const PermuteLayer*>(&other)->GetPermutation());
}
/// Indicates if the other layer received is equal to this one.
/// @param other The other layer to be compare with.
/// @return true if other layer is equal to this false otherwise.
bool IsEqual(const Layer& other) const
{
return (other.GetType() == LayerType::Permute) &&
GetPermutation().IsEqual(boost::polymorphic_downcast<const PermuteLayer*>(&other)->GetPermutation());
}
void Accept(ILayerVisitor& visitor) const override;
protected:
/// Constructor to create a PermuteLayer.
/// @param [in] param PermuteDescriptor to configure the permute operation.
/// @param [in] name Optional name for the layer.
PermuteLayer(const PermuteDescriptor& param, const char* name);
/// Default destructor
~PermuteLayer() = default;
};
} // namespace
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