C++ (Cpp) TileKey::GetHashValueの例

コード例 #1

ファイル: user_mark_generator.cpp プロジェクト: milchakov/omim

void UserMarkGenerator::GenerateUserMarksGeometry(ref_ptr<dp::GraphicsContext> context,
                                                  TileKey const & tileKey,
                                                  ref_ptr<dp::TextureManager> textures)
{
  auto const clippedTileKey =
      TileKey(tileKey.m_x, tileKey.m_y, ClipTileZoomByMaxDataZoom(tileKey.m_zoomLevel));
  auto marksGroups = GetUserMarksGroups(clippedTileKey);
  auto linesGroups = GetUserLinesGroups(clippedTileKey);

  if (marksGroups == nullptr && linesGroups == nullptr)
    return;

  uint32_t constexpr kMaxSize = 65000;
  dp::Batcher batcher(kMaxSize, kMaxSize);
  batcher.SetBatcherHash(tileKey.GetHashValue(BatcherBucket::UserMark));
  TUserMarksRenderData renderData;
  {
    dp::SessionGuard guard(context, batcher, [&tileKey, &renderData](dp::RenderState const & state,
                                                                     drape_ptr<dp::RenderBucket> && b)
    {
      renderData.emplace_back(state, std::move(b), tileKey);
    });

    if (marksGroups != nullptr)
      CacheUserMarks(context, tileKey, *marksGroups.get(), textures, batcher);
    if (linesGroups != nullptr)
      CacheUserLines(context, tileKey, *linesGroups.get(), textures, batcher);
  }
  m_flushFn(std::move(renderData));
}