GLContext::WasLost - Determines if we lost the context due to a TDR or another outstanding event.

src/xenia/ui/gl/gl_context.h

@@ -40,6 +40,7 @@ class GLContext : public GraphicsContext {
   bool is_current() override;
   bool MakeCurrent() override;
   void ClearCurrent() override;
+  bool WasLost() override;
 
   void BeginSwap() override;
   void EndSwap() override;
@@ -80,6 +81,8 @@ class GLContext : public GraphicsContext {
 
   Blitter blitter_;
   std::unique_ptr<GLImmediateDrawer> immediate_drawer_;
+
+  bool context_lost_ = false;
 };
 
 }  // namespace gl