[core] Replace createRender{Source,Layer} with Render{Source,Layer}::create

* Eliminates the need for EnableImmutableFromThis
* Eliminates the dependency of {Source,Layer}::Impl on corresponding Render class (circular dependency)

40 files changed, 81 insertions, 98 deletions

diff --git a/src/mbgl/annotation/annotation_source.cpp b/src/mbgl/annotation/annotation_source.cpp
index b0b8bae6cc..68f36f2d3a 100644
--- a/src/mbgl/annotation/annotation_source.cpp
+++ b/src/mbgl/annotation/annotation_source.cpp
@@ -1,6 +1,5 @@
 #include <mbgl/annotation/annotation_source.hpp>
 #include <mbgl/annotation/annotation_manager.hpp>
-#include <mbgl/annotation/render_annotation_source.hpp>
 
 namespace mbgl {
 
@@ -22,8 +21,4 @@ optional<std::string> AnnotationSource::Impl::getAttribution() const {
     return {};
 }
 
-std::unique_ptr<RenderSource> AnnotationSource::Impl::createRenderSource() const {
-    return std::make_unique<RenderAnnotationSource>(staticImmutableCast<AnnotationSource::Impl>(immutableFromThis()));
-}
-
 } // namespace mbgl
diff --git a/src/mbgl/annotation/annotation_source.hpp b/src/mbgl/annotation/annotation_source.hpp
index 56d91f5501..0728f3207e 100644
--- a/src/mbgl/annotation/annotation_source.hpp
+++ b/src/mbgl/annotation/annotation_source.hpp
@@ -23,7 +23,6 @@ public:
     Impl();
 
     optional<std::string> getAttribution() const final;
-    std::unique_ptr<RenderSource> createRenderSource() const final;
 };
 
 } // namespace mbgl
diff --git a/src/mbgl/renderer/render_background_layer.hpp b/src/mbgl/renderer/render_background_layer.hpp
index c2ac44af8b..7eabf47345 100644
--- a/src/mbgl/renderer/render_background_layer.hpp
+++ b/src/mbgl/renderer/render_background_layer.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/render_layer.hpp>
-#include <mbgl/style/layers/background_layer.hpp>
+#include <mbgl/style/layers/background_layer_impl.hpp>
 #include <mbgl/style/layers/background_layer_properties.hpp>
 
 namespace mbgl {
diff --git a/src/mbgl/renderer/render_circle_layer.hpp b/src/mbgl/renderer/render_circle_layer.hpp
index d059db9343..2b517912c9 100644
--- a/src/mbgl/renderer/render_circle_layer.hpp
+++ b/src/mbgl/renderer/render_circle_layer.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/render_layer.hpp>
-#include <mbgl/style/layers/circle_layer.hpp>
+#include <mbgl/style/layers/circle_layer_impl.hpp>
 #include <mbgl/style/layers/circle_layer_properties.hpp>
 
 namespace mbgl {
diff --git a/src/mbgl/renderer/render_custom_layer.hpp b/src/mbgl/renderer/render_custom_layer.hpp
index 64cd02ac7b..d448433092 100644
--- a/src/mbgl/renderer/render_custom_layer.hpp
+++ b/src/mbgl/renderer/render_custom_layer.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/render_layer.hpp>
-#include <mbgl/style/layers/custom_layer.hpp>
+#include <mbgl/style/layers/custom_layer_impl.hpp>
 
 namespace mbgl {
 
diff --git a/src/mbgl/renderer/render_fill_extrusion_layer.hpp b/src/mbgl/renderer/render_fill_extrusion_layer.hpp
index ef6858a680..f6166495c6 100644
--- a/src/mbgl/renderer/render_fill_extrusion_layer.hpp
+++ b/src/mbgl/renderer/render_fill_extrusion_layer.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/render_layer.hpp>
-#include <mbgl/style/layers/fill_extrusion_layer.hpp>
+#include <mbgl/style/layers/fill_extrusion_layer_impl.hpp>
 #include <mbgl/style/layers/fill_extrusion_layer_properties.hpp>
 
 namespace mbgl {
diff --git a/src/mbgl/renderer/render_fill_layer.hpp b/src/mbgl/renderer/render_fill_layer.hpp
index 7402094a1c..d26ca10b44 100644
--- a/src/mbgl/renderer/render_fill_layer.hpp
+++ b/src/mbgl/renderer/render_fill_layer.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/render_layer.hpp>
-#include <mbgl/style/layers/fill_layer.hpp>
+#include <mbgl/style/layers/fill_layer_impl.hpp>
 #include <mbgl/style/layers/fill_layer_properties.hpp>
 
 namespace mbgl {
diff --git a/src/mbgl/renderer/render_layer.cpp b/src/mbgl/renderer/render_layer.cpp
index 2f30b2ce21..ca4999e606 100644
--- a/src/mbgl/renderer/render_layer.cpp
+++ b/src/mbgl/renderer/render_layer.cpp
@@ -1,8 +1,43 @@
 #include <mbgl/renderer/render_layer.hpp>
+#include <mbgl/renderer/render_background_layer.hpp>
+#include <mbgl/renderer/render_circle_layer.hpp>
+#include <mbgl/renderer/render_custom_layer.hpp>
+#include <mbgl/renderer/render_fill_extrusion_layer.hpp>
+#include <mbgl/renderer/render_fill_layer.hpp>
+#include <mbgl/renderer/render_line_layer.hpp>
+#include <mbgl/renderer/render_raster_layer.hpp>
+#include <mbgl/renderer/render_symbol_layer.hpp>
 #include <mbgl/style/types.hpp>
 
 namespace mbgl {
 
+using namespace style;
+
+std::unique_ptr<RenderLayer> RenderLayer::create(Immutable<Layer::Impl> impl) {
+    switch (impl->type) {
+    case LayerType::Fill:
+        return std::make_unique<RenderFillLayer>(staticImmutableCast<FillLayer::Impl>(impl));
+    case LayerType::Line:
+        return std::make_unique<RenderLineLayer>(staticImmutableCast<LineLayer::Impl>(impl));
+    case LayerType::Circle:
+        return std::make_unique<RenderCircleLayer>(staticImmutableCast<CircleLayer::Impl>(impl));
+    case LayerType::Symbol:
+        return std::make_unique<RenderSymbolLayer>(staticImmutableCast<SymbolLayer::Impl>(impl));
+    case LayerType::Raster:
+        return std::make_unique<RenderRasterLayer>(staticImmutableCast<RasterLayer::Impl>(impl));
+    case LayerType::Background:
+        return std::make_unique<RenderBackgroundLayer>(staticImmutableCast<BackgroundLayer::Impl>(impl));
+    case LayerType::Custom:
+        return std::make_unique<RenderCustomLayer>(staticImmutableCast<CustomLayer::Impl>(impl));
+    case LayerType::FillExtrusion:
+        return std::make_unique<RenderFillExtrusionLayer>(staticImmutableCast<FillExtrusionLayer::Impl>(impl));
+    }
+
+    // Not reachable, but placate GCC.
+    assert(false);
+    return nullptr;
+}
+
 RenderLayer::RenderLayer(style::LayerType type_, Immutable<style::Layer::Impl> baseImpl_)
         : type(type_),
           baseImpl(baseImpl_) {
diff --git a/src/mbgl/renderer/render_layer.hpp b/src/mbgl/renderer/render_layer.hpp
index f1999a7257..e6a2d26fde 100644
--- a/src/mbgl/renderer/render_layer.hpp
+++ b/src/mbgl/renderer/render_layer.hpp
@@ -22,6 +22,8 @@ protected:
     const style::LayerType type;
 
 public:
+    static std::unique_ptr<RenderLayer> create(Immutable<style::Layer::Impl>);
+
     virtual ~RenderLayer() = default;
 
     // Partially evaluate paint properties based on a set of classes.
diff --git a/src/mbgl/renderer/render_line_layer.hpp b/src/mbgl/renderer/render_line_layer.hpp
index ddb2608fff..0276e6a6d9 100644
--- a/src/mbgl/renderer/render_line_layer.hpp
+++ b/src/mbgl/renderer/render_line_layer.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/render_layer.hpp>
-#include <mbgl/style/layers/line_layer.hpp>
+#include <mbgl/style/layers/line_layer_impl.hpp>
 #include <mbgl/style/layers/line_layer_properties.hpp>
 
 namespace mbgl {
diff --git a/src/mbgl/renderer/render_raster_layer.hpp b/src/mbgl/renderer/render_raster_layer.hpp
index c822262e91..50c213aa26 100644
--- a/src/mbgl/renderer/render_raster_layer.hpp
+++ b/src/mbgl/renderer/render_raster_layer.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/render_layer.hpp>
-#include <mbgl/style/layers/raster_layer.hpp>
+#include <mbgl/style/layers/raster_layer_impl.hpp>
 #include <mbgl/style/layers/raster_layer_properties.hpp>
 
 namespace mbgl {
diff --git a/src/mbgl/renderer/render_source.cpp b/src/mbgl/renderer/render_source.cpp
index 9eca54795a..4b411aa703 100644
--- a/src/mbgl/renderer/render_source.cpp
+++ b/src/mbgl/renderer/render_source.cpp
@@ -1,9 +1,35 @@
 #include <mbgl/renderer/render_source.hpp>
 #include <mbgl/renderer/render_source_observer.hpp>
+#include <mbgl/renderer/sources/render_geojson_source.hpp>
+#include <mbgl/renderer/sources/render_raster_source.hpp>
+#include <mbgl/renderer/sources/render_vector_source.hpp>
+#include <mbgl/annotation/render_annotation_source.hpp>
 #include <mbgl/tile/tile.hpp>
 
 namespace mbgl {
 
+using namespace style;
+
+std::unique_ptr<RenderSource> RenderSource::create(Immutable<Source::Impl> impl) {
+    switch (impl->type) {
+    case SourceType::Vector:
+        return std::make_unique<RenderVectorSource>(staticImmutableCast<VectorSource::Impl>(impl));
+    case SourceType::Raster:
+        return std::make_unique<RenderRasterSource>(staticImmutableCast<RasterSource::Impl>(impl));
+    case SourceType::GeoJSON:
+        return std::make_unique<RenderGeoJSONSource>(staticImmutableCast<GeoJSONSource::Impl>(impl));
+    case SourceType::Video:
+        assert(false);
+        return nullptr;
+    case SourceType::Annotations:
+        return std::make_unique<RenderAnnotationSource>(staticImmutableCast<AnnotationSource::Impl>(impl));
+    }
+
+    // Not reachable, but placate GCC.
+    assert(false);
+    return nullptr;
+}
+
 static RenderSourceObserver nullObserver;
 
 RenderSource::RenderSource(Immutable<style::Source::Impl> impl)
diff --git a/src/mbgl/renderer/render_source.hpp b/src/mbgl/renderer/render_source.hpp
index 178ee92f93..994d600613 100644
--- a/src/mbgl/renderer/render_source.hpp
+++ b/src/mbgl/renderer/render_source.hpp
@@ -29,7 +29,8 @@ class ClipIDGenerator;
 
 class RenderSource : protected TileObserver {
 public:
-    RenderSource(Immutable<style::Source::Impl>);
+    static std::unique_ptr<RenderSource> create(Immutable<style::Source::Impl>);
+
     ~RenderSource() override = default;
 
     virtual bool isLoaded() const = 0;
@@ -77,6 +78,7 @@ public:
     bool enabled = false;
 
 protected:
+    RenderSource(Immutable<style::Source::Impl>);
     RenderSourceObserver* observer;
 
     void onTileChanged(Tile&) final;
diff --git a/src/mbgl/renderer/render_symbol_layer.hpp b/src/mbgl/renderer/render_symbol_layer.hpp
index 07b4e96125..ba1b047663 100644
--- a/src/mbgl/renderer/render_symbol_layer.hpp
+++ b/src/mbgl/renderer/render_symbol_layer.hpp
@@ -3,7 +3,7 @@
 #include <mbgl/text/glyph.hpp>
 #include <mbgl/renderer/render_layer.hpp>
 #include <mbgl/sprite/sprite_atlas.hpp>
-#include <mbgl/style/layers/symbol_layer.hpp>
+#include <mbgl/style/layers/symbol_layer_impl.hpp>
 #include <mbgl/style/layers/symbol_layer_properties.hpp>
 
 namespace mbgl {
diff --git a/src/mbgl/style/layer_impl.hpp b/src/mbgl/style/layer_impl.hpp
index fe7259a11a..569ef65906 100644
--- a/src/mbgl/style/layer_impl.hpp
+++ b/src/mbgl/style/layer_impl.hpp
@@ -27,7 +27,7 @@ namespace style {
  * Members that are public in `FooLayer::Impl` are part of the internal API for "foo" layers.
  * Members that are private in `FooLayer::Impl` are internal to "foo" layers.
  */
-class Layer::Impl : public EnableImmutableFromThis<Layer::Impl> {
+class Layer::Impl {
 public:
     Impl(LayerType, std::string layerID, std::string sourceID);
     virtual ~Impl() = default;
@@ -37,8 +37,6 @@ public:
     // Utility function for automatic layer grouping.
     virtual void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const = 0;
 
-    virtual std::unique_ptr<RenderLayer> createRenderLayer() const = 0;
-
     const LayerType type;
     std::string id;
     std::string source;
diff --git a/src/mbgl/style/layers/background_layer_impl.cpp b/src/mbgl/style/layers/background_layer_impl.cpp
index 07249ec5a4..4b4f44a8d8 100644
--- a/src/mbgl/style/layers/background_layer_impl.cpp
+++ b/src/mbgl/style/layers/background_layer_impl.cpp
@@ -1,12 +1,7 @@
 #include <mbgl/style/layers/background_layer_impl.hpp>
-#include <mbgl/renderer/render_background_layer.hpp>
 
 namespace mbgl {
 namespace style {
 
-std::unique_ptr<RenderLayer> BackgroundLayer::Impl::createRenderLayer() const {
-    return std::make_unique<RenderBackgroundLayer>(staticImmutableCast<BackgroundLayer::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/layers/background_layer_impl.hpp b/src/mbgl/style/layers/background_layer_impl.hpp
index 41eee7bdf3..8f17eb6d34 100644
--- a/src/mbgl/style/layers/background_layer_impl.hpp
+++ b/src/mbgl/style/layers/background_layer_impl.hpp
@@ -13,8 +13,6 @@ public:
 
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    std::unique_ptr<RenderLayer> createRenderLayer() const override;
-
     BackgroundPaintProperties::Cascading cascading;
 };
 
diff --git a/src/mbgl/style/layers/circle_layer_impl.cpp b/src/mbgl/style/layers/circle_layer_impl.cpp
index 8df79507bf..cdb371bd58 100644
--- a/src/mbgl/style/layers/circle_layer_impl.cpp
+++ b/src/mbgl/style/layers/circle_layer_impl.cpp
@@ -1,12 +1,7 @@
 #include <mbgl/style/layers/circle_layer_impl.hpp>
-#include <mbgl/renderer/render_circle_layer.hpp>
 
 namespace mbgl {
 namespace style {
 
-std::unique_ptr<RenderLayer> CircleLayer::Impl::createRenderLayer() const {
-    return std::make_unique<RenderCircleLayer>(staticImmutableCast<CircleLayer::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/layers/circle_layer_impl.hpp b/src/mbgl/style/layers/circle_layer_impl.hpp
index 94fa24b811..707f7e6103 100644
--- a/src/mbgl/style/layers/circle_layer_impl.hpp
+++ b/src/mbgl/style/layers/circle_layer_impl.hpp
@@ -13,8 +13,6 @@ public:
 
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    std::unique_ptr<RenderLayer> createRenderLayer() const override;
-
     CirclePaintProperties::Cascading cascading;
 };
 
diff --git a/src/mbgl/style/layers/custom_layer_impl.cpp b/src/mbgl/style/layers/custom_layer_impl.cpp
index e459b57171..f5ad2bb087 100644
--- a/src/mbgl/style/layers/custom_layer_impl.cpp
+++ b/src/mbgl/style/layers/custom_layer_impl.cpp
@@ -1,15 +1,10 @@
 #include <mbgl/style/layers/custom_layer_impl.hpp>
-#include <mbgl/renderer/render_custom_layer.hpp>
 #include <mbgl/map/transform_state.hpp>
 #include <mbgl/util/logging.hpp>
 
 namespace mbgl {
 namespace style {
 
-std::unique_ptr<RenderLayer> CustomLayer::Impl::createRenderLayer() const {
-    return std::make_unique<RenderCustomLayer>(staticImmutableCast<CustomLayer::Impl>(immutableFromThis()));
-}
-
 CustomLayer::Impl::Impl(const std::string& id_,
                          CustomLayerInitializeFunction initializeFn_,
                          CustomLayerRenderFunction renderFn_,
diff --git a/src/mbgl/style/layers/custom_layer_impl.hpp b/src/mbgl/style/layers/custom_layer_impl.hpp
index f921f47d59..26a75f5834 100644
--- a/src/mbgl/style/layers/custom_layer_impl.hpp
+++ b/src/mbgl/style/layers/custom_layer_impl.hpp
@@ -24,8 +24,6 @@ public:
 private:
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    std::unique_ptr<RenderLayer> createRenderLayer() const final;
-
     CustomLayerInitializeFunction initializeFn = nullptr;
     CustomLayerRenderFunction renderFn = nullptr;
     CustomLayerDeinitializeFunction deinitializeFn = nullptr;
diff --git a/src/mbgl/style/layers/fill_extrusion_layer_impl.cpp b/src/mbgl/style/layers/fill_extrusion_layer_impl.cpp
index 9530e45b7f..07df4cd331 100644
--- a/src/mbgl/style/layers/fill_extrusion_layer_impl.cpp
+++ b/src/mbgl/style/layers/fill_extrusion_layer_impl.cpp
@@ -1,12 +1,7 @@
 #include <mbgl/style/layers/fill_extrusion_layer_impl.hpp>
-#include <mbgl/renderer/render_fill_extrusion_layer.hpp>
 
 namespace mbgl {
 namespace style {
 
-std::unique_ptr<RenderLayer> FillExtrusionLayer::Impl::createRenderLayer() const {
-    return std::make_unique<RenderFillExtrusionLayer>(staticImmutableCast<FillExtrusionLayer::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/layers/fill_extrusion_layer_impl.hpp b/src/mbgl/style/layers/fill_extrusion_layer_impl.hpp
index 167d28e973..edc481767e 100644
--- a/src/mbgl/style/layers/fill_extrusion_layer_impl.hpp
+++ b/src/mbgl/style/layers/fill_extrusion_layer_impl.hpp
@@ -13,8 +13,6 @@ public:
 
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    std::unique_ptr<RenderLayer> createRenderLayer() const override;
-
     FillExtrusionPaintProperties::Cascading cascading;
 };
 
diff --git a/src/mbgl/style/layers/fill_layer_impl.cpp b/src/mbgl/style/layers/fill_layer_impl.cpp
index 3bddedbdfb..38672c5bfe 100644
--- a/src/mbgl/style/layers/fill_layer_impl.cpp
+++ b/src/mbgl/style/layers/fill_layer_impl.cpp
@@ -1,12 +1,7 @@
 #include <mbgl/style/layers/fill_layer_impl.hpp>
-#include <mbgl/renderer/render_fill_layer.hpp>
 
 namespace mbgl {
 namespace style {
 
-std::unique_ptr<RenderLayer> FillLayer::Impl::createRenderLayer() const {
-    return std::make_unique<RenderFillLayer>(staticImmutableCast<FillLayer::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/layers/fill_layer_impl.hpp b/src/mbgl/style/layers/fill_layer_impl.hpp
index 0e911c86cf..0ae146f859 100644
--- a/src/mbgl/style/layers/fill_layer_impl.hpp
+++ b/src/mbgl/style/layers/fill_layer_impl.hpp
@@ -13,8 +13,6 @@ public:
 
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    std::unique_ptr<RenderLayer> createRenderLayer() const override;
-
     FillPaintProperties::Cascading cascading;
 };
 
diff --git a/src/mbgl/style/layers/line_layer_impl.cpp b/src/mbgl/style/layers/line_layer_impl.cpp
index 0158ba7a96..16a164eb9d 100644
--- a/src/mbgl/style/layers/line_layer_impl.cpp
+++ b/src/mbgl/style/layers/line_layer_impl.cpp
@@ -1,12 +1,7 @@
 #include <mbgl/style/layers/line_layer_impl.hpp>
-#include <mbgl/renderer/render_line_layer.hpp>
 
 namespace mbgl {
 namespace style {
 
-std::unique_ptr<RenderLayer> LineLayer::Impl::createRenderLayer() const {
-    return std::make_unique<RenderLineLayer>(staticImmutableCast<LineLayer::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/layers/line_layer_impl.hpp b/src/mbgl/style/layers/line_layer_impl.hpp
index 70d357c592..decbf8451e 100644
--- a/src/mbgl/style/layers/line_layer_impl.hpp
+++ b/src/mbgl/style/layers/line_layer_impl.hpp
@@ -13,8 +13,6 @@ public:
 
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    std::unique_ptr<RenderLayer> createRenderLayer() const override;
-
     LineLayoutProperties layout;
     LinePaintProperties::Cascading cascading;
 };
diff --git a/src/mbgl/style/layers/raster_layer_impl.cpp b/src/mbgl/style/layers/raster_layer_impl.cpp
index f7e908a5cf..1c2204c5d7 100644
--- a/src/mbgl/style/layers/raster_layer_impl.cpp
+++ b/src/mbgl/style/layers/raster_layer_impl.cpp
@@ -1,12 +1,7 @@
 #include <mbgl/style/layers/raster_layer_impl.hpp>
-#include <mbgl/renderer/render_raster_layer.hpp>
 
 namespace mbgl {
 namespace style {
 
-std::unique_ptr<RenderLayer> RasterLayer::Impl::createRenderLayer() const {
-    return std::make_unique<RenderRasterLayer>(staticImmutableCast<RasterLayer::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/layers/raster_layer_impl.hpp b/src/mbgl/style/layers/raster_layer_impl.hpp
index 451619807a..fbdbd9379b 100644
--- a/src/mbgl/style/layers/raster_layer_impl.hpp
+++ b/src/mbgl/style/layers/raster_layer_impl.hpp
@@ -13,8 +13,6 @@ public:
 
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    std::unique_ptr<RenderLayer> createRenderLayer() const override;
-
     RasterPaintProperties::Cascading cascading;
 };
 
diff --git a/src/mbgl/style/layers/symbol_layer_impl.cpp b/src/mbgl/style/layers/symbol_layer_impl.cpp
index 220a17fd36..3f0ab9b8fb 100644
--- a/src/mbgl/style/layers/symbol_layer_impl.cpp
+++ b/src/mbgl/style/layers/symbol_layer_impl.cpp
@@ -1,12 +1,7 @@
 #include <mbgl/style/layers/symbol_layer_impl.hpp>
-#include <mbgl/renderer/render_symbol_layer.hpp>
 
 namespace mbgl {
 namespace style {
 
-std::unique_ptr<RenderLayer> SymbolLayer::Impl::createRenderLayer() const {
-    return std::make_unique<RenderSymbolLayer>(staticImmutableCast<SymbolLayer::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/layers/symbol_layer_impl.hpp b/src/mbgl/style/layers/symbol_layer_impl.hpp
index 4937ee8721..5e04834583 100644
--- a/src/mbgl/style/layers/symbol_layer_impl.hpp
+++ b/src/mbgl/style/layers/symbol_layer_impl.hpp
@@ -14,8 +14,6 @@ public:
 
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    std::unique_ptr<RenderLayer> createRenderLayer() const override;
-
     SymbolLayoutProperties layout;
     SymbolPaintProperties::Cascading cascading;
 };
diff --git a/src/mbgl/style/source_impl.hpp b/src/mbgl/style/source_impl.hpp
index 3620ec4e50..52d5036fae 100644
--- a/src/mbgl/style/source_impl.hpp
+++ b/src/mbgl/style/source_impl.hpp
@@ -13,12 +13,11 @@ namespace style {
 
 class SourceObserver;
 
-class Source::Impl : public EnableImmutableFromThis<Source::Impl> {
+class Source::Impl {
 public:
     virtual ~Impl() = default;
 
     virtual optional<std::string> getAttribution() const = 0;
-    virtual std::unique_ptr<RenderSource> createRenderSource() const = 0;
 
     const SourceType type;
     const std::string id;
diff --git a/src/mbgl/style/sources/geojson_source_impl.cpp b/src/mbgl/style/sources/geojson_source_impl.cpp
index 17d05aaa5a..be347af2ab 100644
--- a/src/mbgl/style/sources/geojson_source_impl.cpp
+++ b/src/mbgl/style/sources/geojson_source_impl.cpp
@@ -1,6 +1,6 @@
 #include <mbgl/style/sources/geojson_source_impl.hpp>
-#include <mbgl/renderer/sources/render_geojson_source.hpp>
-#include <mbgl/util/constants.cpp>
+#include <mbgl/util/constants.hpp>
+#include <mbgl/tile/tile_id.hpp>
 
 #include <mapbox/geojsonvt.hpp>
 #include <supercluster.hpp>
@@ -79,9 +79,5 @@ optional<std::string> GeoJSONSource::Impl::getAttribution() const {
     return {};
 }
 
-std::unique_ptr<RenderSource> GeoJSONSource::Impl::createRenderSource() const {
-    return std::make_unique<RenderGeoJSONSource>(staticImmutableCast<GeoJSONSource::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/sources/geojson_source_impl.hpp b/src/mbgl/style/sources/geojson_source_impl.hpp
index 65580700e7..192ef653dc 100644
--- a/src/mbgl/style/sources/geojson_source_impl.hpp
+++ b/src/mbgl/style/sources/geojson_source_impl.hpp
@@ -26,7 +26,6 @@ public:
     GeoJSONData* getData() const;
 
     optional<std::string> getAttribution() const final;
-    std::unique_ptr<RenderSource> createRenderSource() const final;
 
 private:
     GeoJSONOptions options;
diff --git a/src/mbgl/style/sources/raster_source_impl.cpp b/src/mbgl/style/sources/raster_source_impl.cpp
index 1d684524c7..50dae1f07e 100644
--- a/src/mbgl/style/sources/raster_source_impl.cpp
+++ b/src/mbgl/style/sources/raster_source_impl.cpp
@@ -1,5 +1,4 @@
 #include <mbgl/style/sources/raster_source_impl.hpp>
-#include <mbgl/renderer/sources/render_raster_source.hpp>
 
 namespace mbgl {
 namespace style {
@@ -30,9 +29,5 @@ optional<std::string> RasterSource::Impl::getAttribution() const {
     return tileset->attribution;
 }
 
-std::unique_ptr<RenderSource> RasterSource::Impl::createRenderSource() const {
-    return std::make_unique<RenderRasterSource>(staticImmutableCast<RasterSource::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/sources/raster_source_impl.hpp b/src/mbgl/style/sources/raster_source_impl.hpp
index 0a58953ab7..c41d5485b2 100644
--- a/src/mbgl/style/sources/raster_source_impl.hpp
+++ b/src/mbgl/style/sources/raster_source_impl.hpp
@@ -15,7 +15,6 @@ public:
     uint16_t getTileSize() const;
 
     optional<std::string> getAttribution() const final;
-    std::unique_ptr<RenderSource> createRenderSource() const final;
 
 private:
     uint16_t tileSize;
diff --git a/src/mbgl/style/sources/vector_source_impl.cpp b/src/mbgl/style/sources/vector_source_impl.cpp
index aab62acf3f..b06f0557bf 100644
--- a/src/mbgl/style/sources/vector_source_impl.cpp
+++ b/src/mbgl/style/sources/vector_source_impl.cpp
@@ -1,5 +1,4 @@
 #include <mbgl/style/sources/vector_source_impl.hpp>
-#include <mbgl/renderer/sources/render_vector_source.hpp>
 
 namespace mbgl {
 namespace style {
@@ -24,9 +23,5 @@ optional<std::string> VectorSource::Impl::getAttribution() const {
     return tileset->attribution;
 }
 
-std::unique_ptr<RenderSource> VectorSource::Impl::createRenderSource() const {
-    return std::make_unique<RenderVectorSource>(staticImmutableCast<VectorSource::Impl>(immutableFromThis()));
-}
-
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/sources/vector_source_impl.hpp b/src/mbgl/style/sources/vector_source_impl.hpp
index 602d0e5bbb..5e559b9266 100644
--- a/src/mbgl/style/sources/vector_source_impl.hpp
+++ b/src/mbgl/style/sources/vector_source_impl.hpp
@@ -14,7 +14,6 @@ public:
     optional<Tileset> getTileset() const;
 
     optional<std::string> getAttribution() const final;
-    std::unique_ptr<RenderSource> createRenderSource() const final;
 
 private:
     optional<Tileset> tileset;
diff --git a/src/mbgl/style/style.cpp b/src/mbgl/style/style.cpp
index 2042bc1225..6af876d740 100644
--- a/src/mbgl/style/style.cpp
+++ b/src/mbgl/style/style.cpp
@@ -388,7 +388,7 @@ void Style::update(const UpdateParameters& parameters) {
 
     // Create render sources for newly added sources.
     for (const auto& entry : sourceDiff.added) {
-        std::unique_ptr<RenderSource> renderSource = entry.second->createRenderSource();
+        std::unique_ptr<RenderSource> renderSource = RenderSource::create(entry.second);
         renderSource->setObserver(this);
         renderSources.emplace(entry.first, std::move(renderSource));
     }
@@ -415,7 +415,7 @@ void Style::update(const UpdateParameters& parameters) {
 
     // Create render layers for newly added layers.
     for (const auto& entry : layerDiff.added) {
-        renderLayers.emplace(entry.first, entry.second->createRenderLayer());
+        renderLayers.emplace(entry.first, RenderLayer::create(entry.second));
     }
 
     // Update render layers for changed layers.
diff --git a/src/mbgl/tile/geometry_tile_worker.cpp b/src/mbgl/tile/geometry_tile_worker.cpp
index 788534531d..121960fb81 100644
--- a/src/mbgl/tile/geometry_tile_worker.cpp
+++ b/src/mbgl/tile/geometry_tile_worker.cpp
@@ -246,7 +246,7 @@ static std::vector<std::unique_ptr<RenderLayer>> toRenderLayers(const std::vecto
     std::vector<std::unique_ptr<RenderLayer>> renderLayers;
     renderLayers.reserve(layers.size());
     for (auto& layer : layers) {
-        renderLayers.push_back(layer->createRenderLayer());
+        renderLayers.push_back(RenderLayer::create(layer));
 
         renderLayers.back()->cascade(CascadeParameters {
             { ClassID::Default },