[core] Refactor Source::*Impls into RenderSources and TilePyramid

1 files changed, 8 insertions, 88 deletions

diff --git a/src/mbgl/style/source_impl.hpp b/src/mbgl/style/source_impl.hpp
index 132d1b97f8..2514ec5120 100644
--- a/src/mbgl/style/source_impl.hpp
+++ b/src/mbgl/style/source_impl.hpp
@@ -1,117 +1,37 @@
 #pragma once
 
 #include <mbgl/style/source.hpp>
-
-#include <mbgl/tile/tile_id.hpp>
-#include <mbgl/tile/tile_observer.hpp>
-#include <mbgl/tile/tile.hpp>
-#include <mbgl/tile/tile_cache.hpp>
-#include <mbgl/style/types.hpp>
-#include <mbgl/map/query.hpp>
-
 #include <mbgl/util/noncopyable.hpp>
-#include <mbgl/util/mat4.hpp>
-#include <mbgl/util/feature.hpp>
-#include <mbgl/util/range.hpp>
-
-#include <memory>
-#include <unordered_map>
-#include <vector>
-#include <map>
 
 namespace mbgl {
 
-class Painter;
 class FileSource;
-class TransformState;
-class RenderTile;
-class RenderedQueryOptions;
-
-namespace algorithm {
-class ClipIDGenerator;
-} // namespace algorithm
+class RenderSource;
 
 namespace style {
 
-class UpdateParameters;
 class SourceObserver;
 
-class Source::Impl : public TileObserver, private util::noncopyable {
+class Source::Impl : private util::noncopyable {
 public:
     Impl(SourceType, std::string id, Source&);
-    ~Impl() override;
+    virtual ~Impl() = default;
 
     virtual void loadDescription(FileSource&) = 0;
-    bool isLoaded() const;
-
-    // Called when the camera has changed. May load new tiles, unload obsolete tiles, or
-    // trigger re-placement of existing complete tiles.
-    void updateTiles(const UpdateParameters&);
-
-    // Removes all tiles (by putting them into the cache).
-    void removeTiles();
-
-    // Remove all tiles and clear the cache.
-    void invalidateTiles();
-
-    // Request that all loaded tiles re-run the layout operation on the existing source
-    // data with fresh style information.
-    void reloadTiles();
-
-    void startRender(algorithm::ClipIDGenerator&,
-                     const mat4& projMatrix,
-                     const mat4& clipMatrix,
-                     const TransformState&);
-    void finishRender(Painter&);
-
-    std::map<UnwrappedTileID, RenderTile>& getRenderTiles();
-
-    std::unordered_map<std::string, std::vector<Feature>>
-    queryRenderedFeatures(const ScreenLineString& geometry,
-                          const TransformState& transformState,
-                          const RenderedQueryOptions& options) const;
-
-    std::vector<Feature> querySourceFeatures(const SourceQueryOptions&);
-
-    void setCacheSize(size_t);
-    void onLowMemory();
+    virtual std::unique_ptr<RenderSource> createRenderSource() const = 0;
 
-    void setObserver(SourceObserver*);
-    void dumpDebugLogs() const;
+    virtual optional<std::string> getAttribution() const { return {}; };
 
     const SourceType type;
     const std::string id;
 
-    virtual optional<std::string> getAttribution() const { return {}; };
-    virtual optional<Range<uint8_t>> getZoomRange() const = 0;
-
     bool loaded = false;
-
-    // Tracks whether the source is used by any layers visible at the current zoom level. Must
-    // be initialized to true so that Style::isLoaded() does not produce false positives if
-    // called before Style::recalculate().
-    bool enabled = true;
-    
-    // Detaches from the style
-    void detach();
-
-protected:
     Source& base;
-    SourceObserver* observer = nullptr;
-    std::map<OverscaledTileID, std::unique_ptr<Tile>> tiles;
-    TileCache cache;
-
-private:
-    void removeStaleTiles(const std::set<OverscaledTileID>&);
-
-    // TileObserver implementation.
-    void onTileChanged(Tile&) override;
-    void onTileError(Tile&, std::exception_ptr) override;
 
-    virtual uint16_t getTileSize() const = 0;
-    virtual std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&) = 0;
+    void setObserver(SourceObserver*);
+    SourceObserver* observer = nullptr;
 
-    std::map<UnwrappedTileID, RenderTile> renderTiles;
+    void dumpDebugLogs() const;
 };
 
 } // namespace style