New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/drape_frontend/traffic_renderer.hpp

@@ -0,0 +1,48 @@
+#pragma once
+
+#include "drape_frontend/frame_values.hpp"
+#include "drape_frontend/traffic_generator.hpp"
+#include "drape_frontend/tile_utils.hpp"
+
+#include "shaders/program_manager.hpp"
+
+#include "drape/pointers.hpp"
+
+#include "geometry/screenbase.hpp"
+#include "geometry/spline.hpp"
+
+#include <vector>
+
+namespace df
+{
+class TrafficRenderer final
+{
+public:
+  TrafficRenderer() = default;
+
+  void AddRenderData(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
+                     TrafficRenderData && renderData);
+
+  void RenderTraffic(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
+                     ScreenBase const & screen, int zoomLevel, float opacity,
+                     FrameValues const & frameValues);
+
+  bool HasRenderData() const { return !m_renderData.empty(); }
+
+  void ClearContextDependentResources();
+  void Clear(MwmSet::MwmId const & mwmId);
+
+  void OnUpdateViewport(CoverageResult const & coverage, int currentZoomLevel,
+                        buffer_vector<TileKey, 8> const & tilesToDelete);
+  void OnGeometryReady(int currentZoomLevel);
+
+  static float GetTwoWayOffset(RoadClass const & roadClass, int zoomLevel);
+  static bool CanBeRenderedAsLine(RoadClass const & roadClass, int zoomLevel, int & width);
+
+private:
+  static float GetPixelWidth(RoadClass const & roadClass, int zoomLevel);
+  static float GetPixelWidthInternal(RoadClass const & roadClass, int zoomLevel);
+
+  std::vector<TrafficRenderData> m_renderData;
+};
+}  // namespace df