1 files changed, 86 insertions, 0 deletions
diff --git a/src/mbgl/map/source.hpp b/src/mbgl/map/source.hpp
new file mode 100644
index 0000000000..8976f67b05
--- /dev/null
+++ b/src/mbgl/map/source.hpp
@@ -0,0 +1,86 @@
+#ifndef MBGL_MAP_SOURCE
+#define MBGL_MAP_SOURCE
+
+#include <mbgl/map/tile.hpp>
+#include <mbgl/map/tile_data.hpp>
+#include <mbgl/style/style_source.hpp>
+
+#include <mbgl/util/noncopyable.hpp>
+#include <mbgl/util/time.hpp>
+#include <mbgl/util/mat4.hpp>
+#include <mbgl/util/ptr.hpp>
+
+#include <cstdint>
+#include <forward_list>
+#include <iosfwd>
+#include <map>
+
+namespace mbgl {
+
+class Map;
+class GlyphAtlas;
+class GlyphStore;
+class SpriteAtlas;
+class Sprite;
+class FileSource;
+class TexturePool;
+class Style;
+class Painter;
+class StyleLayer;
+class TransformState;
+struct box;
+
+class Source : public std::enable_shared_from_this<Source>, private util::noncopyable {
+public:
+    Source(SourceInfo&);
+
+    void load(Map&, FileSource&);
+    void update(Map&, uv::worker&,
+                util::ptr<Style>,
+                GlyphAtlas&, GlyphStore&,
+                SpriteAtlas&, util::ptr<Sprite>,
+                TexturePool&, FileSource&,
+                std::function<void ()> callback);
+
+    void updateMatrices(const mat4 &projMatrix, const TransformState &transform);
+    void drawClippingMasks(Painter &painter);
+    size_t getTileCount() const;
+    void render(Painter &painter, util::ptr<StyleLayer> layer_desc);
+    void render(Painter &painter, util::ptr<StyleLayer> layer_desc, const Tile::ID &id, const mat4 &matrix);
+    void finishRender(Painter &painter);
+
+    std::forward_list<Tile::ID> getIDs() const;
+    std::forward_list<Tile *> getLoadedTiles() const;
+    void updateClipIDs(const std::map<Tile::ID, ClipID> &mapping);
+
+private:
+    bool findLoadedChildren(const Tile::ID& id, int32_t maxCoveringZoom, std::forward_list<Tile::ID>& retain);
+    bool findLoadedParent(const Tile::ID& id, int32_t minCoveringZoom, std::forward_list<Tile::ID>& retain);
+    int32_t coveringZoomLevel(const TransformState&) const;
+    std::forward_list<Tile::ID> coveringTiles(const TransformState&) const;
+
+    TileData::State addTile(Map&, uv::worker&,
+                            util::ptr<Style>,
+                            GlyphAtlas&, GlyphStore&,
+                            SpriteAtlas&, util::ptr<Sprite>,
+                            FileSource&, TexturePool&,
+                            const Tile::ID&,
+                            std::function<void ()> callback);
+
+    TileData::State hasTile(const Tile::ID& id);
+
+    double getZoom(const TransformState &state) const;
+
+    SourceInfo& info;
+    bool loaded = false;
+
+    // Stores the time when this source was most recently updated.
+    timestamp updated = 0;
+
+    std::map<Tile::ID, std::unique_ptr<Tile>> tiles;
+    std::map<Tile::ID, std::weak_ptr<TileData>> tile_data;
+};
+
+}
+
+#endif