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#pragma once
#include <mbgl/tile/geometry_tile_data.hpp>
#include <mbgl/style/image_impl.hpp>
#include <mbgl/renderer/image_atlas.hpp>
#include <mbgl/style/layer_impl.hpp>
#include <atomic>
namespace mbgl {
namespace gfx {
class UploadPass;
} // namespace gfx
class RenderLayer;
class CrossTileSymbolLayerIndex;
class OverscaledTileID;
class PatternDependency;
using PatternLayerMap = std::map<std::string, PatternDependency>;
class Placement;
class TransformState;
class BucketPlacementParameters;
class RenderTile;
class Bucket {
public:
Bucket(const Bucket&) = delete;
Bucket& operator=(const Bucket&) = delete;
virtual ~Bucket() = default;
// Feature geometries are also used to populate the feature index.
// Obtaining these is a costly operation, so we do it only once, and
// pass-by-const-ref the geometries as a second parameter.
virtual void addFeature(const GeometryTileFeature&, const GeometryCollection&, const ImagePositions&,
const PatternLayerMap&, std::size_t){};
virtual void update(const FeatureStates&, const GeometryTileLayer&, const std::string&, const ImagePositions&) {}
// As long as this bucket has a Prepare render pass, this function is getting called. Typically,
// this only happens once when the bucket is being rendered for the first time.
virtual void upload(gfx::UploadPass&) = 0;
virtual bool hasData() const = 0;
virtual float getQueryRadius(const RenderLayer&) const {
return 0;
};
bool needsUpload() const {
return hasData() && !uploaded;
}
// The following methods are implemented by buckets that require cross-tile indexing and placement.
// Returns a pair, the first element of which is a bucket cross-tile id
// on success call; `0` otherwise. The second element is `true` if
// the bucket was originally registered; `false` otherwise.
virtual std::pair<uint32_t, bool> registerAtCrossTileIndex(CrossTileSymbolLayerIndex&, const OverscaledTileID&, uint32_t&) {
return std::make_pair(0u, false);
}
// Places this bucket to the given placement.
virtual void place(Placement&, const BucketPlacementParameters&, std::set<uint32_t>&) {}
virtual void updateVertices(Placement&, bool /*updateOpacities*/, const TransformState&, const RenderTile&, std::set<uint32_t>&) {}
protected:
Bucket() = default;
std::atomic<bool> uploaded { false };
};
} // namespace mbgl
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