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#ifndef MBGL_MAP_TILE_WORKER
#define MBGL_MAP_TILE_WORKER
#include <mapbox/variant.hpp>
#include <mbgl/map/tile_data.hpp>
#include <mbgl/geometry/elements_buffer.hpp>
#include <mbgl/geometry/fill_buffer.hpp>
#include <mbgl/geometry/line_buffer.hpp>
#include <mbgl/geometry/circle_buffer.hpp>
#include <mbgl/util/noncopyable.hpp>
#include <mbgl/util/ptr.hpp>
#include <mbgl/style/filter_expression.hpp>
#include <string>
#include <memory>
#include <mutex>
#include <unordered_map>
namespace mbgl {
class CollisionTile;
class GeometryTile;
class Style;
class Bucket;
class StyleLayer;
class StyleBucket;
class GeometryTileLayer;
using TileParseResult = mapbox::util::variant<
TileData::State, // success
std::string>; // error
class TileWorker : public util::noncopyable {
public:
TileWorker(TileID,
std::string sourceID,
uint16_t maxZoom,
Style&,
std::vector<util::ptr<StyleLayer>>,
const std::atomic<TileData::State>&,
std::unique_ptr<CollisionTile>);
~TileWorker();
Bucket* getBucket(const StyleLayer&) const;
TileParseResult parse(const GeometryTile&);
void redoPlacement(float angle, float pitch, bool collisionDebug);
std::vector<util::ptr<StyleLayer>> layers;
private:
void parseLayer(const StyleLayer&, const GeometryTile&);
std::unique_ptr<Bucket> createFillBucket(const GeometryTileLayer&, const StyleBucket&);
std::unique_ptr<Bucket> createLineBucket(const GeometryTileLayer&, const StyleBucket&);
std::unique_ptr<Bucket> createCircleBucket(const GeometryTileLayer&, const StyleBucket&);
std::unique_ptr<Bucket> createSymbolBucket(const GeometryTileLayer&, const StyleBucket&);
template <class Bucket>
void addBucketGeometries(Bucket&, const GeometryTileLayer&, const FilterExpression&);
const TileID id;
const std::string sourceID;
const uint16_t maxZoom;
Style& style;
const std::atomic<TileData::State>& state;
bool partialParse = false;
FillVertexBuffer fillVertexBuffer;
LineVertexBuffer lineVertexBuffer;
CircleVertexBuffer circleVertexBuffer;
TriangleElementsBuffer triangleElementsBuffer;
LineElementsBuffer lineElementsBuffer;
std::unique_ptr<CollisionTile> collisionTile;
// Contains all the Bucket objects for the tile. Buckets are render
// objects and they get added to this map as they get processed.
// Tiles partially parsed can get new buckets at any moment but are
// also fit for rendering. That said, access to this list needs locking
// unless the tile is completely parsed.
std::unordered_map<std::string, std::unique_ptr<Bucket>> buckets;
mutable std::mutex bucketsMutex;
};
}
#endif
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