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//
// Copyright © 2019-2023 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "ComparisonLayer.hpp"
#include "LayerCloneBase.hpp"
#include <armnn/backends/WorkloadData.hpp>
#include <armnn/backends/WorkloadFactory.hpp>
#include <algorithm>
namespace armnn
{
ComparisonLayer::ComparisonLayer(const ComparisonDescriptor& param, const char* name)
: LayerWithParameters(2, 1, LayerType::Comparison, param, name)
{
}
std::unique_ptr<IWorkload> ComparisonLayer::CreateWorkload(const IWorkloadFactory& factory) const
{
ComparisonQueueDescriptor descriptor;
SetAdditionalInfo(descriptor);
return factory.CreateWorkload(LayerType::Comparison,descriptor, PrepInfoAndDesc(descriptor));
}
ComparisonLayer* ComparisonLayer::Clone(Graph& graph) const
{
return CloneBase<ComparisonLayer>(graph, m_Param, GetName());
}
std::vector<TensorShape> ComparisonLayer::InferOutputShapes(const std::vector<TensorShape>& inputShapes) const
{
ARMNN_ASSERT(inputShapes.size() == 2);
TensorShape input0 = inputShapes[0];
TensorShape input1 = inputShapes[1];
if (inputShapes[0].GetNumDimensions() < inputShapes[1].GetNumDimensions())
{
input1 = inputShapes[0];
input0 = inputShapes[1];
}
unsigned int numDims = input0.GetNumDimensions();
unsigned int shiftedDims = input0.GetNumDimensions() - input1.GetNumDimensions();
// Get the max of the inputs.
std::vector<unsigned int> dims(numDims);
for (unsigned int i = shiftedDims; i < numDims; i++)
{
unsigned int dim0 = input0[i];
unsigned int dim1 = input1[i - shiftedDims];
// Validate inputs are broadcast compatible.
ARMNN_ASSERT_MSG(dim0 == dim1 || dim0 == 1 || dim1 == 1,
"Dimensions should either match or one should be of size 1.");
dims[i] = std::max(dim0, dim1);
}
// Fill in the rest of the shifted dimensions.
for (unsigned int i = 0; i < shiftedDims; i++)
{
dims[i] = input0[i];
}
return std::vector<TensorShape>({ TensorShape(numDims, dims.data()) });
}
void ComparisonLayer::ValidateTensorShapesFromInputs()
{
VerifyLayerConnections(2, CHECK_LOCATION());
const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape();
VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod);
std::vector<TensorShape> inferredShapes = InferOutputShapes({
GetInputSlot(0).GetTensorInfo().GetShape(),
GetInputSlot(1).GetTensorInfo().GetShape()
});
ARMNN_ASSERT(inferredShapes.size() == 1);
ValidateAndCopyShape(outputShape, inferredShapes[0], m_ShapeInferenceMethod, "ComparisonLayer");
}
void ComparisonLayer::ExecuteStrategy(IStrategy& strategy) const
{
strategy.ExecuteStrategy(this, GetParameters(), {}, GetName());
}
} // namespace armnn
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