Method RenderSubrouteArrows

libs/drape_frontend/route_renderer.cpp:497–533

}

void RouteRenderer::RenderSubrouteArrows(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
                                         SubrouteInfo const & subrouteInfo, ScreenBase const & screen,
                                         FrameValues const & frameValues)
{
  if (subrouteInfo.m_arrowsData == nullptr || subrouteInfo.m_arrowsData->m_renderProperty.m_buckets.empty() ||
      m_hiddenSubroutes.find(subrouteInfo.m_subrouteId) != m_hiddenSubroutes.end())
  {
    return;
  }

  dp::RenderState const & state = subrouteInfo.m_arrowsData->m_renderProperty.m_state;
  float const currentHalfWidth = GetCurrentHalfWidth(subrouteInfo);

  // Set up parameters.
  gpu::RouteProgramParams params;
  frameValues.SetTo(params);
  math::Matrix<float, 4, 4> mv = screen.GetModelView(subrouteInfo.m_arrowsData->m_pivot, kShapeCoordScalar);
  params.m_modelView = glsl::make_mat4(mv.m_data);
  auto const arrowHalfWidth = static_cast<float>(currentHalfWidth * kArrowHeightFactor);
  params.m_arrowHalfWidth = arrowHalfWidth;

  // Adjust arrow color depending on route type and subroute distance
  params.m_maskColor =
      glsl::ToVec4(GetArrowMaskColor(subrouteInfo.m_subroute->m_routeType, subrouteInfo.m_subroute->m_baseDistance));

  ref_ptr<dp::GpuProgram> prg = mng->GetProgram(gpu::Program::RouteArrow);
  prg->Bind();
  dp::ApplyState(context, prg, state);
  mng->GetParamsSetter()->Apply(context, prg, params);

  auto const & clipRect = screen.ClipRect();
  CHECK_EQUAL(subrouteInfo.m_arrowsData->m_renderProperty.m_buckets.size(),
              subrouteInfo.m_arrowsData->m_renderProperty.m_boundingBoxes.size(), ());
  for (size_t i = 0; i < subrouteInfo.m_arrowsData->m_renderProperty.m_buckets.size(); ++i)
    if (subrouteInfo.m_arrowsData->m_renderProperty.m_boundingBoxes[i].IsIntersect(clipRect))
      subrouteInfo.m_arrowsData->m_renderProperty.m_buckets[i]->Render(context, state.GetDrawAsLine());
}

void RouteRenderer::RenderSubrouteMarkers(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
                                          SubrouteInfo const & subrouteInfo, ScreenBase const & screen,