1 files changed, 45 insertions, 0 deletions
diff --git a/platform/macos/src/MGLMapView+OpenGL.h b/platform/macos/src/MGLMapView+OpenGL.h
new file mode 100644
index 0000000000..d4c6a448cd
--- /dev/null
+++ b/platform/macos/src/MGLMapView+OpenGL.h
@@ -0,0 +1,45 @@
+#import "MGLMapView+Impl.h"
+#import "MGLMapView_Private.h"
+
+#include <mbgl/gfx/renderable.hpp>
+#include <mbgl/gl/renderer_backend.hpp>
+
+/// 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 = default;
+
+public:
+    void restoreFramebufferBinding();
+
+    // 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;
+    }
+
+    mbgl::PremultipliedImage readStillImage() override;
+    CGLContextObj getCGLContextObj() override;
+};