press 1 through 6 to add 10^(n-1) points in the current viewport

(only works correctly when rotated to north, but this is a just a debug functionality anyway)

include/mbgl/platform/default/glfw_view.hpp

@@ -36,11 +36,17 @@ public:
     void run();
     void fps();
 
+private:
+    void addRandomPointAnnotations(int count);
+
 private:
     bool fullscreen = false;
     bool tracking = false;
     bool rotating = false;
 
+    int width = 1024;
+    int height = 768;
+
     double lastX = 0, lastY = 0;
 
     double lastClick = -1;