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//
// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include <optimizations/FoldPadIntoLayer2d.hpp>
namespace armnn
{
namespace
{
//
// this helper only works if all layers where the inputs connect to are not selected
//
SubgraphView::IInputSlots CreateIInputsFrom(const std::vector<armnn::IConnectableLayer*>& layers)
{
SubgraphView::IInputSlots result;
for (auto&& layer : layers)
{
for (unsigned int i = 0 ; i < layer->GetNumInputSlots(); ++i)
{
result.push_back(&(layer->GetInputSlot(i)));
}
}
return result;
}
//
// this helper only works if all layers where the outputs connect to are not selected
//
SubgraphView::IOutputSlots CreateIOutputsFrom(const std::vector<armnn::IConnectableLayer*>& layers)
{
SubgraphView::IOutputSlots result;
for (auto &&layer: layers)
{
for (unsigned int i = 0; i < layer->GetNumOutputSlots(); ++i)
{
result.push_back(&(layer->GetOutputSlot(i)));
}
}
return result;
}
}
inline void ReportUntouchedLayers(OptimizationViews& optimizationViews, std::map<LayerGuid, Layer*> untouched)
{
std::vector<Layer*> untouchedVector;
for (const auto& pair : untouched)
{
Layer* layer = pair.second;
SubgraphView subgraphView({layer},
CreateIInputsFrom({layer}),
CreateIOutputsFrom({layer}));
optimizationViews.AddUntouchedSubgraph(std::move(subgraphView));
}
}
template<typename LayerType>
LayerType* FoldPadLayer(OptimizationViews& optimizationViews,
LayerType* baseLayer,
LayerType* replacementLayer,
PadLayer* padLayer)
{
SubgraphView substitutionSubgraph({padLayer, baseLayer},
CreateIInputsFrom({padLayer}),
CreateIOutputsFrom({baseLayer}));
SubgraphView replacementSubgraph(replacementLayer);
optimizationViews.AddSubstitution({substitutionSubgraph, replacementSubgraph});
return replacementLayer;
}
template<typename LayerType>
LayerType* FoldPadIntoAveragePool2d(OptimizationViews& optimizationViews,
Pooling2dLayer* baseLayer,
Pooling2dDescriptor& poolDescriptor,
PadLayer* padLayer)
{
IConnectableLayer* replacement =
optimizationViews.GetINetwork()->AddPooling2dLayer(poolDescriptor, "folded-pad-into-pool2d");
LayerType* replacementLayer = PolymorphicDowncast<LayerType*>(replacement);
FoldPadLayer(optimizationViews,
baseLayer,
replacementLayer,
padLayer);
return replacementLayer;
}
} // namespace armnn
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