[core] Eliminate TileData dependency on TileSource

src/mbgl/tile/annotation_tile_data.cpp

@@ -8,8 +8,13 @@ AnnotationTileData::AnnotationTileData(const OverscaledTileID& overscaledTileID,
                                        std::string sourceID,
                                        const style::UpdateParameters& parameters)
     : GeometryTileData(overscaledTileID, sourceID, parameters.style, parameters.mode) {
-    setTileSource(std::make_unique<AnnotationTileSource>(
-        *this, overscaledTileID, parameters.annotationManager));
+    tileSource = std::make_unique<AnnotationTileSource>(*this, overscaledTileID, parameters.annotationManager);
+}
+
+AnnotationTileData::~AnnotationTileData() = default;
+
+void AnnotationTileData::setNecessity(Necessity necessity) {
+    tileSource->setNecessity(static_cast<TileSource::Necessity>(necessity));
 }
 
 } // namespace mbgl

src/mbgl/tile/annotation_tile_data.hpp

@@ -4,6 +4,8 @@
 
 namespace mbgl {
 
+class TileSource;
+
 namespace style {
 class UpdateParameters;
 }
@@ -13,6 +15,12 @@ public:
     AnnotationTileData(const OverscaledTileID&,
                        std::string sourceID,
                        const style::UpdateParameters&);
+    ~AnnotationTileData();
+
+    void setNecessity(Necessity) final;
+
+private:
+    std::unique_ptr<TileSource> tileSource;
 };
 
 } // namespace mbgl

src/mbgl/tile/geojson_tile_data.cpp

@@ -9,9 +9,13 @@ GeoJSONTileData::GeoJSONTileData(const OverscaledTileID& overscaledTileID,
                                  const style::UpdateParameters& parameters,
                                  mapbox::geojsonvt::GeoJSONVT* geojsonvt)
     : GeometryTileData(overscaledTileID, sourceID, parameters.style, parameters.mode) {
-    setTileSource(
-        std::make_unique<GeoJSONTileSource>(*this, geojsonvt, overscaledTileID));
+    tileSource = std::make_unique<GeoJSONTileSource>(*this, geojsonvt, overscaledTileID);
 }
 
+GeoJSONTileData::~GeoJSONTileData() = default;
+
+void GeoJSONTileData::setNecessity(Necessity necessity) {
+    tileSource->setNecessity(static_cast<TileSource::Necessity>(necessity));
+}
 
 } // namespace mbgl

src/mbgl/tile/geojson_tile_data.hpp

@@ -10,6 +10,8 @@ class GeoJSONVT;
 
 namespace mbgl {
 
+class TileSource;
+
 namespace style {
 class UpdateParameters;
 }
@@ -20,6 +22,12 @@ public:
                    std::string sourceID,
                    const style::UpdateParameters&,
                    mapbox::geojsonvt::GeoJSONVT*);
+    ~GeoJSONTileData();
+
+    void setNecessity(Necessity) final;
+
+private:
+    std::unique_ptr<TileSource> tileSource;
 };
 
 } // namespace mbgl

src/mbgl/tile/raster_tile_data.cpp

@@ -21,8 +21,7 @@ RasterTileData::RasterTileData(const OverscaledTileID& id_,
     const auto resource = Resource::tile(
         tileset.tiles.at(0), parameters.pixelRatio, id_.canonical.x,
         id_.canonical.y, id_.canonical.z);
-    setTileSource(
-        std::make_unique<ImageTileSource>(*this, resource, parameters.fileSource));
+    tileSource = std::make_unique<ImageTileSource>(*this, resource, parameters.fileSource);
 }
 
 void RasterTileData::setError(std::exception_ptr err) {
@@ -68,6 +67,10 @@ Bucket* RasterTileData::getBucket(const style::Layer&) {
     return bucket.get();
 }
 
+void RasterTileData::setNecessity(Necessity necessity) {
+    tileSource->setNecessity(static_cast<TileSource::Necessity>(necessity));
+}
+
 void RasterTileData::cancel() {
     workRequest.reset();
 }

src/mbgl/tile/raster_tile_data.hpp

@@ -8,6 +8,7 @@ namespace mbgl {
 class RasterTileSource;
 class AsyncRequest;
 class Tileset;
+class TileSource;
 
 namespace gl { class TexturePool; }
 
@@ -23,6 +24,8 @@ public:
                    const Tileset&);
     ~RasterTileData();
 
+    void setNecessity(Necessity) final;
+
     void setError(std::exception_ptr err);
 
     void setData(std::shared_ptr<const std::string> data,
@@ -36,6 +39,7 @@ private:
     gl::TexturePool& texturePool;
     Worker& worker;
 
+    std::unique_ptr<TileSource> tileSource;
     std::unique_ptr<AsyncRequest> workRequest;
 
     // Contains the Bucket object for the tile. Buckets are render

src/mbgl/tile/tile_data.cpp

@@ -1,6 +1,5 @@
 #include <mbgl/tile/tile_data.hpp>
 #include <mbgl/tile/tile_data_observer.hpp>
-#include <mbgl/tile/tile_source.hpp>
 #include <mbgl/renderer/debug_bucket.hpp>
 #include <mbgl/util/string.hpp>
 
@@ -18,16 +17,6 @@ void TileData::setObserver(TileDataObserver* observer_) {
     observer = observer_;
 }
 
-void TileData::setTileSource(std::unique_ptr<TileSource> tileSource_) {
-    assert(!tileSource);
-    assert(tileSource_);
-    tileSource = std::move(tileSource_);
-}
-
-void TileData::setNecessity(Necessity necessity) {
-    tileSource->setNecessity(static_cast<TileSource::Necessity>(necessity));
-}
-
 void TileData::setTriedOptional() {
     triedOptional = true;
     observer->onNeedsRepaint();

src/mbgl/tile/tile_data.hpp

@@ -19,7 +19,6 @@ namespace mbgl {
 class Worker;
 class DebugBucket;
 class TransformState;
-class TileSource;
 class TileDataObserver;
 
 namespace style {
@@ -38,7 +37,7 @@ public:
         Required = true,
     };
 
-    void setNecessity(Necessity);
+    virtual void setNecessity(Necessity) = 0;
 
     // Mark this tile as no longer needed and cancel any pending work.
     virtual void cancel() = 0;
@@ -104,9 +103,6 @@ protected:
 
     DataAvailability availableData = DataAvailability::None;
 
-    void setTileSource(std::unique_ptr<TileSource>);
-    std::unique_ptr<TileSource> tileSource;
-
     TileDataObserver* observer = nullptr;
 };
 

src/mbgl/tile/vector_tile_data.cpp

@@ -15,8 +15,13 @@ VectorTileData::VectorTileData(const OverscaledTileID& overscaledTileID,
     const auto resource = Resource::tile(
         tileset.tiles.at(0), parameters.pixelRatio, overscaledTileID.canonical.x,
         overscaledTileID.canonical.y, overscaledTileID.canonical.z);
-    setTileSource(
-        std::make_unique<VectorTileSource>(*this, resource, parameters.fileSource));
+    tileSource = std::make_unique<VectorTileSource>(*this, resource, parameters.fileSource);
+}
+
+VectorTileData::~VectorTileData() = default;
+
+void VectorTileData::setNecessity(Necessity necessity) {
+    tileSource->setNecessity(static_cast<TileSource::Necessity>(necessity));
 }
 
 } // namespace mbgl

src/mbgl/tile/vector_tile_data.hpp

@@ -5,6 +5,7 @@
 namespace mbgl {
 
 class Tileset;
+class TileSource;
 
 namespace style {
 class UpdateParameters;
@@ -16,6 +17,12 @@ public:
                    std::string sourceID,
                    const style::UpdateParameters&,
                    const Tileset&);
+    ~VectorTileData();
+
+    void setNecessity(Necessity) final;
+
+private:
+    std::unique_ptr<TileSource> tileSource;
 };
 
 } // namespace mbgl