Method CachePointPosition

libs/drape_frontend/my_position.cpp:236–267

}

void MyPosition::CachePointPosition(ref_ptr<dp::GraphicsContext> context, ref_ptr<dp::TextureManager> mng)
{
  int constexpr kSymbolsCount = 1;
  dp::TextureManager::SymbolRegion pointSymbol;
  mng->GetSymbolRegion("current-position", pointSymbol);

  auto state = CreateRenderState(gpu::Program::MyPosition, DepthLayer::OverlayLayer);
  state.SetDepthTestEnabled(false);
  state.SetColorTexture(pointSymbol.GetTexture());
  state.SetTextureIndex(pointSymbol.GetTextureIndex());

  dp::TextureManager::SymbolRegion * symbols[kSymbolsCount] = {&pointSymbol};
  EMyPositionPart partIndices[kSymbolsCount] = {MyPositionPoint};
  {
    dp::Batcher batcher(kSymbolsCount * dp::Batcher::IndexPerQuad, kSymbolsCount * dp::Batcher::VertexPerQuad);
    batcher.SetBatcherHash(static_cast<uint64_t>(BatcherBucket::Default));
    dp::SessionGuard guard(context, batcher, [this](dp::RenderState const & state, drape_ptr<dp::RenderBucket> && b)
    {
      drape_ptr<dp::RenderBucket> bucket = std::move(b);
      ASSERT(bucket->GetOverlayHandlesCount() == 0, ());

      m_nodes.emplace_back(state, bucket->MoveBuffer());
    });

    auto const partIndex = m_nodes.size();
    for (int i = 0; i < kSymbolsCount; i++)
    {
      m_parts[partIndices[i]].second = partIndex;
      CacheSymbol(context, *symbols[i], state, batcher, partIndices[i]);
    }
  }
}

void MyPosition::RenderPart(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
                            gpu::ShapesProgramParams const & params, EMyPositionPart part)