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#pragma once
#include "indexer/geometry_serialization.hpp"
#include "coding/reader.hpp"
#include "coding/trie.hpp"
#include "coding/trie_reader.hpp"
namespace search
{
static const uint8_t kCategoriesLang = 128;
static const uint8_t kPointCodingBits = 20;
} // namespace search
namespace trie
{
// Value: feature offset and search rank are stored.
class ValueReader
{
serial::CodingParams const & m_cp;
public:
explicit ValueReader(serial::CodingParams const & cp) : m_cp(cp) {}
struct ValueType
{
m2::PointD m_pt; // Center point of feature;
uint32_t m_featureId; // Offset of the feature;
uint8_t m_rank; // Rank of feature;
};
template <typename TSource>
void operator()(TSource & src, ValueType & v) const
{
v.m_pt = serial::LoadPoint(src, m_cp);
v.m_featureId = ReadPrimitiveFromSource<uint32_t>(src);
v.m_rank = ReadPrimitiveFromSource<uint8_t>(src);
}
template <class TSink>
void Save(TSink & sink, ValueType const & v) const
{
serial::SavePoint(sink, v.m_pt, m_cp);
WriteToSink(sink, v.m_featureId);
WriteToSink(sink, v.m_rank);
}
};
using TEdgeValueReader = EmptyValueReader;
using DefaultIterator =
trie::Iterator<trie::ValueReader::ValueType, trie::TEdgeValueReader::ValueType>;
inline serial::CodingParams GetCodingParams(serial::CodingParams const & orig)
{
return serial::CodingParams(search::kPointCodingBits,
PointU2PointD(orig.GetBasePoint(), orig.GetCoordBits()));
}
} // namespace trie
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