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path: root/src/armnn/layers/CastLayer.cpp
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//
// Copyright © 2021-2024 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "CastLayer.hpp"

#include "LayerCloneBase.hpp"
#include <armnn/TypesUtils.hpp>

#include <armnn/backends/WorkloadData.hpp>
#include <armnn/backends/WorkloadFactory.hpp>

namespace armnn
{

CastLayer::CastLayer(const char* name)
        : Layer(1, 1, LayerType::Cast, name)
{
}

std::unique_ptr<IWorkload> CastLayer::CreateWorkload(const IWorkloadFactory& factory) const
{
    CastQueueDescriptor descriptor;
    SetAdditionalInfo(descriptor);

    return factory.CreateWorkload(LayerType::Cast, descriptor, PrepInfoAndDesc(descriptor));
}

CastLayer* CastLayer::Clone(Graph& graph) const
{
    return CloneBase<CastLayer>(graph, GetName());
}

void CastLayer::ValidateTensorShapesFromInputs()
{
    VerifyLayerConnections(1, CHECK_LOCATION());

    const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape();

    VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod);

    auto inferredShapes = InferOutputShapes({ GetInputSlot(0).GetTensorInfo().GetShape() });

    if (inferredShapes.size() != 1)
    {
        throw armnn::LayerValidationException("inferredShapes has "
                                              + std::to_string(inferredShapes.size()) +
                                              " elements - should only have 1.");
    }

    ValidateAndCopyShape(outputShape, inferredShapes[0], m_ShapeInferenceMethod, "CastLayer");
}

} // namespace armnn