1 files changed, 59 insertions, 0 deletions
diff --git a/platform/ios/src/MGLMapView+OpenGL.h b/platform/ios/src/MGLMapView+OpenGL.h
new file mode 100644
index 0000000000..12edb13113
--- /dev/null
+++ b/platform/ios/src/MGLMapView+OpenGL.h
@@ -0,0 +1,59 @@
+#import "MGLMapView+Impl.h"
+#import "MGLMapView_Private.h"
+
+#include <mbgl/gfx/renderable.hpp>
+#include <mbgl/gl/renderer_backend.hpp>
+
+@class MGLMapViewImplDelegate;
+
+/// Adapter responsible for bridging calls from mbgl to MGLMapView and Cocoa.
+class MGLMapViewOpenGLImpl final : public MGLMapViewImpl,
+                                   public mbgl::gl::RendererBackend,
+                                   public mbgl::gfx::Renderable {
+public:
+    MGLMapViewOpenGLImpl(MGLMapView*);
+    ~MGLMapViewOpenGLImpl() override;
+
+public:
+    void restoreFramebufferBinding();
+
+#ifdef MGL_RECREATE_GL_IN_AN_EMERGENCY
+private:
+    void emergencyRecreateGL();
+#endif
+
+    // Implementation of mbgl::gfx::RendererBackend
+public:
+    mbgl::gfx::Renderable& getDefaultRenderable() override {
+        return *this;
+    }
+
+private:
+    void activate() override;
+    void deactivate() override;
+    // End implementation of mbgl::gfx::RendererBackend
+
+    // Implementation of mbgl::gl::RendererBackend
+public:
+    void updateAssumedState() override;
+
+private:
+    mbgl::gl::ProcAddress getExtensionFunctionPointer(const char* name) override;
+    // End implementation of mbgl::gl::Rendererbackend
+
+    // Implementation of MGLMapViewImpl
+public:
+    mbgl::gfx::RendererBackend& getRendererBackend() override {
+        return *this;
+    }
+
+    EAGLContext* getEAGLContext() override;
+    void setOpaque(bool) override;
+    void display() override;
+    void setPresentsWithTransaction(bool) override;
+    void createView() override;
+    UIView* getView() override;
+    void deleteView() override;
+    UIImage* snapshot() override;
+    // End implementation of MGLMapViewImpl
+};