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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include <armnn/ILayerVisitor.hpp>
#include <armnn/LayerVisitorBase.hpp>
#include <armnnSerializer/ISerializer.hpp>
#include <unordered_map>
#include <ArmnnSchema_generated.h>
namespace armnnSerializer
{
class SerializerVisitor : public armnn::LayerVisitorBase<armnn::VisitorNoThrowPolicy>
{
public:
SerializerVisitor() : m_layerId(0) {};
~SerializerVisitor() {}
flatbuffers::FlatBufferBuilder& GetFlatBufferBuilder()
{
return m_flatBufferBuilder;
}
std::vector<unsigned int>& GetInputIds()
{
return m_inputIds;
}
std::vector<unsigned int>& GetOutputIds()
{
return m_outputIds;
}
std::vector<flatbuffers::Offset<armnnSerializer::AnyLayer>>& GetSerializedLayers()
{
return m_serializedLayers;
}
void VisitActivationLayer(const armnn::IConnectableLayer* layer,
const armnn::ActivationDescriptor& descriptor,
const char* name = nullptr) override;
void VisitAdditionLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
void VisitBatchToSpaceNdLayer(const armnn::IConnectableLayer* layer,
const armnn::BatchToSpaceNdDescriptor& descriptor,
const char* name = nullptr) override;
void VisitBatchNormalizationLayer(const armnn::IConnectableLayer* layer,
const armnn::BatchNormalizationDescriptor& BatchNormalizationDescriptor,
const armnn::ConstTensor& mean,
const armnn::ConstTensor& variance,
const armnn::ConstTensor& beta,
const armnn::ConstTensor& gamma,
const char* name = nullptr) override;
void VisitConstantLayer(const armnn::IConnectableLayer* layer,
const armnn::ConstTensor& input,
const char* = nullptr) override;
void VisitConvolution2dLayer(const armnn::IConnectableLayer* layer,
const armnn::Convolution2dDescriptor& descriptor,
const armnn::ConstTensor& weights,
const armnn::Optional<armnn::ConstTensor>& biases,
const char* = nullptr) override;
void VisitDepthwiseConvolution2dLayer(const armnn::IConnectableLayer* layer,
const armnn::DepthwiseConvolution2dDescriptor& descriptor,
const armnn::ConstTensor& weights,
const armnn::Optional<armnn::ConstTensor>& biases,
const char* name = nullptr) override;
void VisitDivisionLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
void VisitEqualLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
void VisitFloorLayer(const armnn::IConnectableLayer *layer,
const char *name = nullptr) override;
void VisitFullyConnectedLayer(const armnn::IConnectableLayer* layer,
const armnn::FullyConnectedDescriptor& fullyConnectedDescriptor,
const armnn::ConstTensor& weights,
const armnn::Optional<armnn::ConstTensor>& biases,
const char* name = nullptr) override;
void VisitGreaterLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
void VisitInputLayer(const armnn::IConnectableLayer* layer,
armnn::LayerBindingId id,
const char* name = nullptr) override;
void VisitMinimumLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
void VisitMaximumLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
void VisitMultiplicationLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
void VisitOutputLayer(const armnn::IConnectableLayer* layer,
armnn::LayerBindingId id,
const char* name = nullptr) override;
void VisitPadLayer(const armnn::IConnectableLayer* layer,
const armnn::PadDescriptor& PadDescriptor,
const char* name = nullptr) override;
void VisitPermuteLayer(const armnn::IConnectableLayer* layer,
const armnn::PermuteDescriptor& PermuteDescriptor,
const char* name = nullptr) override;
void VisitPooling2dLayer(const armnn::IConnectableLayer* layer,
const armnn::Pooling2dDescriptor& pooling2dDescriptor,
const char* name = nullptr) override;
void VisitReshapeLayer(const armnn::IConnectableLayer* layer,
const armnn::ReshapeDescriptor& reshapeDescriptor,
const char* name = nullptr) override;
void VisitResizeBilinearLayer(const armnn::IConnectableLayer* layer,
const armnn::ResizeBilinearDescriptor& resizeDescriptor,
const char* name = nullptr) override;
void VisitRsqrtLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
void VisitSoftmaxLayer(const armnn::IConnectableLayer* layer,
const armnn::SoftmaxDescriptor& softmaxDescriptor,
const char* name = nullptr) override;
void VisitSpaceToBatchNdLayer(const armnn::IConnectableLayer* layer,
const armnn::SpaceToBatchNdDescriptor& spaceToBatchNdDescriptor,
const char* name = nullptr) override;
void VisitNormalizationLayer(const armnn::IConnectableLayer* layer,
const armnn::NormalizationDescriptor& normalizationDescriptor,
const char* name = nullptr) override;
void VisitStridedSliceLayer(const armnn::IConnectableLayer* layer,
const armnn::StridedSliceDescriptor& stridedSliceDescriptor,
const char* name = nullptr) override;
void VisitSubtractionLayer(const armnn::IConnectableLayer* layer,
const char* name = nullptr) override;
private:
/// Creates the Input Slots and Output Slots and LayerBase for the layer.
flatbuffers::Offset<armnnSerializer::LayerBase> CreateLayerBase(
const armnn::IConnectableLayer* layer,
const armnnSerializer::LayerType layerType);
/// Creates the serializer AnyLayer for the layer and adds it to m_serializedLayers.
void CreateAnyLayer(const flatbuffers::Offset<void>& layer, const armnnSerializer::Layer serializerLayer);
/// Creates the serializer ConstTensor for the armnn ConstTensor.
flatbuffers::Offset<armnnSerializer::ConstTensor> CreateConstTensorInfo(
const armnn::ConstTensor& constTensor);
template <typename T>
flatbuffers::Offset<flatbuffers::Vector<T>> CreateDataVector(const void* memory, unsigned int size);
///Function which maps Guid to an index
uint32_t GetSerializedId(unsigned int guid);
/// Creates the serializer InputSlots for the layer.
std::vector<flatbuffers::Offset<armnnSerializer::InputSlot>> CreateInputSlots(
const armnn::IConnectableLayer* layer);
/// Creates the serializer OutputSlots for the layer.
std::vector<flatbuffers::Offset<armnnSerializer::OutputSlot>> CreateOutputSlots(
const armnn::IConnectableLayer* layer);
/// FlatBufferBuilder to create our layers' FlatBuffers.
flatbuffers::FlatBufferBuilder m_flatBufferBuilder;
/// AnyLayers required by the SerializedGraph.
std::vector<flatbuffers::Offset<armnnSerializer::AnyLayer>> m_serializedLayers;
/// Guids of all Input Layers required by the SerializedGraph.
std::vector<unsigned int> m_inputIds;
/// Guids of all Output Layers required by the SerializedGraph.
std::vector<unsigned int> m_outputIds;
/// Mapped Guids of all Layers to match our index.
std::unordered_map<unsigned int, uint32_t > m_guidMap;
/// layer within our FlatBuffer index.
uint32_t m_layerId;
};
class Serializer : public ISerializer
{
public:
Serializer() {}
~Serializer() {}
/// Serializes the network to ArmNN SerializedGraph.
/// @param [in] inNetwork The network to be serialized.
void Serialize(const armnn::INetwork& inNetwork) override;
/// Serializes the SerializedGraph to the stream.
/// @param [stream] the stream to save to
/// @return true if graph is Serialized to the Stream, false otherwise
bool SaveSerializedToStream(std::ostream& stream) override;
private:
/// Visitor to contruct serialized network
SerializerVisitor m_SerializerVisitor;
};
} //namespace armnnSerializer
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