Use a host interface for CustomLayer instead of function pointers (#11553)

Use a host interface for CustomLayer instead of function pointers

Co-authored-by: Julian Rex <julian.rex@mapbox.com>

1 files changed, 4 insertions, 10 deletions

diff --git a/src/mbgl/style/layers/custom_layer_impl.hpp b/src/mbgl/style/layers/custom_layer_impl.hpp
index 62efbbe15b..a41962c276 100644
--- a/src/mbgl/style/layers/custom_layer_impl.hpp
+++ b/src/mbgl/style/layers/custom_layer_impl.hpp
@@ -3,6 +3,8 @@
 #include <mbgl/style/layer_impl.hpp>
 #include <mbgl/style/layers/custom_layer.hpp>
 
+#include <memory>
+
 namespace mbgl {
 
 class TransformState;
@@ -12,20 +14,12 @@ namespace style {
 class CustomLayer::Impl : public Layer::Impl {
 public:
     Impl(const std::string& id,
-         CustomLayerInitializeFunction,
-         CustomLayerRenderFunction,
-         CustomLayerContextLostFunction,
-         CustomLayerDeinitializeFunction,
-         void* context);
+         std::unique_ptr<CustomLayerHost> host);
 
     bool hasLayoutDifference(const Layer::Impl&) const override;
     void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
 
-    CustomLayerInitializeFunction initializeFn = nullptr;
-    CustomLayerRenderFunction renderFn = nullptr;
-    CustomLayerContextLostFunction contextLostFn = nullptr;
-    CustomLayerDeinitializeFunction deinitializeFn = nullptr;
-    void* context = nullptr;
+    std::shared_ptr<CustomLayerHost> host;
 };
 
 } // namespace style