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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include <armnn/ILayerVisitor.hpp>
#include <armnn/INetwork.hpp>
#include <armnn/Tensor.hpp>
#include <armnn/Types.hpp>
#include "Graph.hpp"
#include "Layer.hpp"
#include "Network.hpp"
#include "NetworkQuantizer.hpp"
#include "NetworkQuantizerUtils.hpp"
#include "StaticRangeVisitor.hpp"
#include "QuantizerVisitor.hpp"
#include "OverrideInputRangeVisitor.hpp"
#include <vector>
#include <cmath>
namespace armnn
{
INetworkQuantizer* INetworkQuantizer::CreateRaw(INetwork* inputNetwork)
{
return new NetworkQuantizer(inputNetwork);
}
INetworkQuantizerPtr INetworkQuantizer::Create(INetwork* inputNetwork)
{
return INetworkQuantizerPtr(CreateRaw(inputNetwork), &INetworkQuantizer::Destroy);
}
void INetworkQuantizer::Destroy(INetworkQuantizer *quantizer)
{
delete boost::polymorphic_downcast<NetworkQuantizer*>(quantizer);
}
void NetworkQuantizer::OverrideInputRange(LayerBindingId layerId, float min, float max)
{
const Graph& graph = boost::polymorphic_downcast<const Network*>(m_InputNetwork)->GetGraph();
auto inputLayers = graph.GetInputLayers();
// Walk the input layers of the graph and override the quantization parameters of the one with the given id
OverrideInputRangeVisitor overrideInputRangeVisitor(m_GuidToRangesMap, layerId, MinMaxRange{min, max});
VisitLayers(inputLayers, overrideInputRangeVisitor);
}
INetworkPtr NetworkQuantizer::ExportNetwork()
{
const Graph& graph = boost::polymorphic_downcast<const Network*>(m_InputNetwork)->GetGraph().TopologicalSort();
// Step 1) Walk the graph and register min/max values for intermediate tensors
StaticRangeVisitor rangeVisitor(m_GuidToRangesMap);
VisitLayers(graph, rangeVisitor);
// Step 2) Convert input InputNetwork to Quantized InputNetwork
QuantizerVisitor quantizerVisitor(&rangeVisitor);
VisitLayers(graph, quantizerVisitor);
return quantizerVisitor.RetrieveFinalNetwork();
}
} //namespace armn
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