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#pragma once
#include <mbgl/tile/tile_id.hpp>
#include <mbgl/util/bitmask_operations.hpp>
#include <mbgl/util/geometry.hpp>
#include <mbgl/util/constants.hpp>
#include <mbgl/util/optional.hpp>
#include <map>
#include <set>
#include <vector>
#include <string>
#include <memory>
#include <unordered_set>
namespace mbgl {
class SymbolInstance;
class RenderLayer;
class SymbolBucket;
class IndexedSymbolInstance {
public:
IndexedSymbolInstance(uint32_t crossTileID_, Point<int64_t> coord_)
: crossTileID(crossTileID_), coord(coord_)
{}
uint32_t crossTileID;
Point<int64_t> coord;
};
class TileLayerIndex {
public:
TileLayerIndex(OverscaledTileID coord,
std::vector<SymbolInstance>&,
uint32_t bucketInstanceId,
std::string bucketLeaderId);
Point<int64_t> getScaledCoordinates(SymbolInstance&, const OverscaledTileID&) const;
void findMatches(SymbolBucket&, const OverscaledTileID&, std::set<uint32_t>&) const;
OverscaledTileID coord;
uint32_t bucketInstanceId;
std::string bucketLeaderId;
std::map<std::u16string,std::vector<IndexedSymbolInstance>> indexedSymbolInstances;
};
class CrossTileSymbolLayerIndex {
public:
CrossTileSymbolLayerIndex(uint32_t& maxCrossTileID);
bool addBucket(const OverscaledTileID&, SymbolBucket&);
bool removeStaleBuckets(const std::unordered_set<uint32_t>& currentIDs);
void handleWrapJump(float newLng);
private:
void removeBucketCrossTileIDs(uint8_t zoom, const TileLayerIndex& removedBucket);
std::map<uint8_t, std::map<OverscaledTileID,TileLayerIndex>> indexes;
std::map<uint8_t, std::set<uint32_t>> usedCrossTileIDs;
float lng = 0;
uint32_t& maxCrossTileID;
};
class CrossTileSymbolIndex {
public:
CrossTileSymbolIndex();
enum class AddLayerResult : uint8_t {
NoChanges = 0,
BucketsAdded = 1 << 0,
BucketsRemoved = 1 << 1
};
AddLayerResult addLayer(const RenderLayer& layer, float lng);
void pruneUnusedLayers(const std::set<std::string>&);
void reset();
private:
std::map<std::string, CrossTileSymbolLayerIndex> layerIndexes;
uint32_t maxCrossTileID = 0;
};
} // namespace mbgl
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