a75e16e26b
Changes the internal representation of compressed geometries to be a single array shared between forward and reverse geometries that can be read in either direction. Includes a change on extractor::OriginalEdgeData to store via_geometry ids that indicate which direction to read the geometry for that edge based edge. Closes #2592
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
#ifndef GEOMETRY_COMPRESSOR_HPP_
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#define GEOMETRY_COMPRESSOR_HPP_
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#include "util/typedefs.hpp"
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#include <unordered_map>
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#include <string>
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#include <vector>
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namespace osrm
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{
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namespace extractor
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{
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class CompressedEdgeContainer
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{
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public:
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struct OnewayCompressedEdge
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{
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public:
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NodeID node_id; // refers to an internal node-based-node
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EdgeWeight weight; // the weight of the edge leading to this node
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};
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struct CompressedEdge
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{
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public:
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NodeID node_id;
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EdgeWeight forward_weight;
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EdgeWeight reverse_weight;
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};
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using OnewayEdgeBucket = std::vector<OnewayCompressedEdge>;
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using EdgeBucket = std::vector<CompressedEdge>;
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CompressedEdgeContainer();
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void CompressEdge(const EdgeID surviving_edge_id,
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const EdgeID removed_edge_id,
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const NodeID via_node_id,
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const NodeID target_node,
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const EdgeWeight weight1,
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const EdgeWeight weight2);
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void
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AddUncompressedEdge(const EdgeID edge_id, const NodeID target_node, const EdgeWeight weight);
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void InitializeBothwayVector();
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unsigned ZipEdges(const unsigned f_edge_pos, const unsigned r_edge_pos);
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bool HasEntryForID(const EdgeID edge_id) const;
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bool HasZippedEntryForForwardID(const EdgeID edge_id) const;
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bool HasZippedEntryForReverseID(const EdgeID edge_id) const;
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void PrintStatistics() const;
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void SerializeInternalVector(const std::string &path) const;
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unsigned GetPositionForID(const EdgeID edge_id) const;
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unsigned GetZippedPositionForForwardID(const EdgeID edge_id) const;
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unsigned GetZippedPositionForReverseID(const EdgeID edge_id) const;
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const OnewayEdgeBucket &GetBucketReference(const EdgeID edge_id) const;
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bool IsTrivial(const EdgeID edge_id) const;
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NodeID GetFirstEdgeTargetID(const EdgeID edge_id) const;
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NodeID GetLastEdgeTargetID(const EdgeID edge_id) const;
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NodeID GetLastEdgeSourceID(const EdgeID edge_id) const;
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private:
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int free_list_maximum = 0;
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void IncreaseFreeList();
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std::vector<OnewayEdgeBucket> m_compressed_oneway_geometries;
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std::vector<EdgeBucket> m_compressed_geometries;
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std::vector<unsigned> m_free_list;
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std::unordered_map<EdgeID, unsigned> m_edge_id_to_list_index_map;
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std::unordered_map<EdgeID, unsigned> m_forward_edge_id_to_zipped_index_map;
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std::unordered_map<EdgeID, unsigned> m_reverse_edge_id_to_zipped_index_map;
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};
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}
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}
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#endif // GEOMETRY_COMPRESSOR_HPP_
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