Method InitStipplePen

libs/drape/texture_manager.cpp:368–402

}

void TextureManager::InitStipplePen(Params const & params)
{
  // Initialize patterns (reserved ./data/patterns.txt lines count).
  std::set<PenPatternT> patterns;
  uint32_t rowsCount = 0;

  impl::ParsePatternsList(params.m_patterns, [&](buffer_vector<double, 8> const & pattern)
  {
    PenPatternT toAdd;
    for (double d : pattern)
      toAdd.push_back(PatternFloat2Pixel(d * params.m_visualScale));

    if (!patterns.insert(toAdd).second)
      return;

    if (IsTrianglePattern(toAdd))
    {
      rowsCount = rowsCount + toAdd[2] + toAdd[3];
    }
    else
    {
      ASSERT_EQUAL(toAdd.size(), 2, ());
      ++rowsCount;
    }
  });

  m_stipplePenTexture = make_unique_dp<StipplePenTexture>(StipplePenTextureSize(rowsCount, m_maxTextureSize),
                                                          make_ref(m_textureAllocator));

  LOG(LDEBUG, ("Patterns texture size =", m_stipplePenTexture->GetWidth(), m_stipplePenTexture->GetHeight()));

  ref_ptr<StipplePenTexture> stipplePenTex = make_ref(m_stipplePenTexture);
  for (auto const & p : patterns)
    stipplePenTex->ReservePattern(p);
}

void TextureManager::OnSwitchMapStyle(ref_ptr<dp::GraphicsContext> context)
{