Method CacheMarkers

libs/drape_frontend/route_shape.cpp:553–591

}

drape_ptr<df::SubrouteMarkersData> RouteShape::CacheMarkers(ref_ptr<dp::GraphicsContext> context,
                                                            dp::DrapeID subrouteId, SubrouteConstPtr subroute,
                                                            int recacheId, ref_ptr<dp::TextureManager> textures)
{
  if (subroute->m_markers.empty())
    return nullptr;

  auto markersData = make_unique_dp<df::SubrouteMarkersData>();
  markersData->m_subrouteId = subrouteId;
  markersData->m_pivot = subroute->m_polyline.GetLimitRect().Center();
  markersData->m_recacheId = recacheId;

  MarkersGeometryBuffer geometry;
  auto const depth = static_cast<float>(subroute->m_baseDepthIndex * rs::kDepthPerSubroute + rs::kMarkersDepth);
  PrepareMarkersGeometry(subroute->m_markers, markersData->m_pivot, depth, geometry);
  if (geometry.empty())
    return nullptr;

  auto state = CreateRenderState(gpu::Program::RouteMarker, DepthLayer::GeometryLayer);

  // Batching.
  {
    uint32_t constexpr kBatchSize = 200;
    dp::Batcher batcher(kBatchSize, kBatchSize);
    batcher.SetBatcherHash(static_cast<uint64_t>(BatcherBucket::Routing));
    dp::SessionGuard guard(context, batcher,
                           [&markersData](dp::RenderState const & state, drape_ptr<dp::RenderBucket> && b)
    {
      markersData->m_renderProperty.m_buckets.push_back(std::move(b));
      markersData->m_renderProperty.m_state = state;
    });

    dp::AttributeProvider provider(1 /* stream count */, static_cast<uint32_t>(geometry.size()));
    provider.InitStream(0 /* stream index */, MV::GetBindingInfo(), geometry.data());
    batcher.InsertTriangleList(context, state, make_ref(&provider));
  }

  return markersData;
}

void RouteShape::BatchGeometry(ref_ptr<dp::GraphicsContext> context, dp::RenderState const & state,
                               ref_ptr<void> geometry, uint32_t geomSize, ref_ptr<void> joinsGeometry,