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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include <armnn/INetwork.hpp>
#include <armnn/Types.hpp>
#include <utility>
#include <unordered_map>
namespace armnn
{
class RangeTracker
{
public:
using MinMaxRange = std::pair<float, float>;
/// Retrieve the Range for a particular output slot on a particular layer
MinMaxRange GetRange(LayerGuid guid, unsigned int idx) const;
/// Set the range for an output slot on a layer
void SetRange(const IConnectableLayer* layer, unsigned int outputIdx, float min, float max);
/// Query function to check that the RangeTracker is empty.
bool IsEmpty() const { return m_GuidToRangesMap.empty(); }
/// Query that there is an entry for a layer
bool HasRanges(LayerGuid guid) const { return m_GuidToRangesMap.find(guid) != m_GuidToRangesMap.end(); }
/// Update min in RangeTracker with new_min if it is lower than current value
void RefineMin(LayerGuid guid, unsigned int slotIndex, float newMin);
/// Update max in RangeTracker with new_max if it is greater than current value
void RefineMax(LayerGuid guid, unsigned int slotIndex, float newMax);
/// Overwrite min and max in RangeTracker with newMin and newMax
void ResetMinMax(LayerGuid guid, unsigned int idx, float newMin, float newMax);
void Reset();
void SetDynamicMode(bool flag) { m_DynamicMode = flag; }
bool IsInDynamicMode() const { return m_DynamicMode; }
private:
using MinMaxRanges = std::vector<MinMaxRange>;
/// Retrieve the default range
MinMaxRange DefaultRange() const { return std::make_pair(-15.0f, 15.0f); }
/// Mapping from a layer Guid to an array of ranges for outputs
std::unordered_map<LayerGuid, MinMaxRanges> m_GuidToRangesMap;
bool m_DynamicMode = false;
};
} //namespace armnn
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