Method RenderFrame

libs/drape_frontend/frontend_renderer.cpp:1716–1853

}

void FrontendRenderer::RenderFrame()
{
  TRACE_SECTION("[drape] RenderFrame");
  DrapeMeasurerGuard drapeMeasurerGuard;

  CHECK(m_context != nullptr, ());
  if (!m_context->Validate())
  {
    m_frameData.m_forceFullRedrawNextFrame = true;
    m_frameData.m_inactiveFramesCounter = 0;
    return;
  }

  auto & scaleFpsHelper = gui::DrapeGui::Instance().GetScaleFpsHelper();
  m_frameData.m_timer.Reset();

  bool modelViewChanged, viewportChanged, needActiveFrame;
  ScreenBase const & modelView = ProcessEvents(modelViewChanged, viewportChanged, needActiveFrame);
  if (viewportChanged || m_needRestoreSize)
    OnResize(modelView);

  if (!m_context->BeginRendering())
    return;

  // Check for a frame is active.
  bool isActiveFrame = modelViewChanged || viewportChanged || needActiveFrame;

  if (isActiveFrame)
    PrepareScene(modelView);

  bool const needUpdateDynamicTextures = m_texMng->UpdateDynamicTextures(m_context);
  isActiveFrame |= needUpdateDynamicTextures;
  isActiveFrame |= m_userEventStream.IsWaitingForActionCompletion();
  isActiveFrame |= InterpolationHolder::Instance().IsActive();

  bool isActiveFrameForScene = isActiveFrame || m_frameData.m_forceFullRedrawNextFrame;
  if (AnimationSystem::Instance().HasAnimations())
  {
    isActiveFrameForScene |= AnimationSystem::Instance().HasMapAnimations();
    isActiveFrame = true;
  }

  m_routeRenderer->UpdatePreview(modelView);

#ifdef SHOW_FRAMES_STATS
  m_frameData.m_framesOverall += static_cast<uint64_t>(isActiveFrame);
  m_frameData.m_framesFast += static_cast<uint64_t>(!isActiveFrameForScene);
#endif

  RenderScene(modelView, isActiveFrameForScene);

  if (m_renderInjectionHandler)
    m_renderInjectionHandler(m_context, m_texMng, make_ref(m_gpuProgramManager), false);

  m_context->EndRendering();

  auto const hasForceUpdate = m_forceUpdateScene || m_forceUpdateUserMarks;
  isActiveFrame |= hasForceUpdate;