[core] renderer interface

1 files changed, 4 insertions, 5 deletions

diff --git a/include/mbgl/map/backend.hpp b/include/mbgl/map/backend.hpp
index 434f68779c..3347086571 100644
--- a/include/mbgl/map/backend.hpp
+++ b/include/mbgl/map/backend.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <mbgl/map/view.hpp>
+#include <mbgl/map/backend_scope.hpp>
 #include <mbgl/util/image.hpp>
 #include <mbgl/util/size.hpp>
 
@@ -15,8 +16,6 @@ using ProcAddress = void (*)();
 using FramebufferID = uint32_t;
 } // namespace gl
 
-class BackendScope;
-
 class Backend {
 public:
     Backend();
@@ -28,9 +27,9 @@ public:
     // Called prior to rendering to update the internally assumed OpenGL state.
     virtual void updateAssumedState() = 0;
 
-    // Called when the map needs to be rendered; the backend should call Map::render() at some point
-    // in the near future. (Not called for Map::renderStill() mode.)
-    virtual void invalidate() = 0;
+    inline virtual BackendScope::ScopeType getScopeType() const {
+        return BackendScope::ScopeType::Explicit;
+    };
 
 protected:
     // Called with the name of an OpenGL extension that should be loaded. Backend implementations