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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "SpaceToDepthLayer.hpp"
#include "LayerCloneBase.hpp"
#include <armnn/TypesUtils.hpp>
#include <backendsCommon/WorkloadData.hpp>
#include <backendsCommon/WorkloadFactory.hpp>
#include <DataLayoutIndexed.hpp>
#include <numeric>
using namespace armnnUtils;
namespace armnn
{
SpaceToDepthLayer::SpaceToDepthLayer(const SpaceToDepthDescriptor param, const char* name)
: LayerWithParameters(1, 1, LayerType::SpaceToDepth, param, name)
{}
std::unique_ptr<IWorkload> SpaceToDepthLayer::CreateWorkload(const Graph& graph,
const IWorkloadFactory& factory) const
{
SpaceToDepthQueueDescriptor descriptor;
descriptor.m_Parameters.m_BlockSize = m_Param.m_BlockSize;
descriptor.m_Parameters.m_DataLayout = m_Param.m_DataLayout;
return factory.CreateSpaceToDepth(descriptor, PrepInfoAndDesc(descriptor, graph));
}
SpaceToDepthLayer* SpaceToDepthLayer::Clone(Graph& graph) const
{
return CloneBase<SpaceToDepthLayer>(graph, m_Param, GetName());
}
std::vector<TensorShape> SpaceToDepthLayer::InferOutputShapes(const std::vector<TensorShape>& inputShapes) const
{
BOOST_ASSERT(inputShapes.size() == 1);
TensorShape inputShape = inputShapes[0];
TensorShape outputShape(inputShape);
DataLayoutIndexed dimensionIndices{m_Param.m_DataLayout};
unsigned int hIndex = dimensionIndices.GetHeightIndex();
unsigned int wIndex = dimensionIndices.GetWidthIndex();
unsigned int cIndex = dimensionIndices.GetChannelsIndex();
outputShape[hIndex] = inputShape[hIndex] / m_Param.m_BlockSize;
outputShape[wIndex] = inputShape[wIndex] / m_Param.m_BlockSize;
outputShape[cIndex] = inputShape[cIndex] * m_Param.m_BlockSize * m_Param.m_BlockSize;
return std::vector<TensorShape>({ outputShape });
}
void SpaceToDepthLayer::ValidateTensorShapesFromInputs()
{
VerifyLayerConnections(1, CHECK_LOCATION());
std::vector<TensorShape> inferredShapes = InferOutputShapes({
GetInputSlot(0).GetConnection()->GetTensorInfo().GetShape() });
BOOST_ASSERT(inferredShapes.size() == 1);
ConditionalThrowIfNotEqual<LayerValidationException>(
"SpaceToDepthLayer: TensorShape set on OutputSlot[0] does not match the inferred shape.",
GetOutputSlot(0).GetTensorInfo().GetShape(),
inferredShapes[0]);
}
void SpaceToDepthLayer::Accept(ILayerVisitor& visitor) const
{
visitor.VisitSpaceToDepthLayer(this, GetParameters(), GetName());
}
} // namespace armnn
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