C++ common::Flag类代码示例

u32 VideoBackendHardware::Video_AccessEFB(EFBAccessType type, u32 x, u32 y, u32 InputData)
{
	if (s_BackendInitialized && g_ActiveConfig.bEFBAccessEnable)
	{
		s_accessEFBArgs.type = type;
		s_accessEFBArgs.x = x;
		s_accessEFBArgs.y = y;
		s_accessEFBArgs.Data = InputData;

		s_efbAccessRequested.Set();

		if (SConfig::GetInstance().m_LocalCoreStartupParameter.bCPUThread)
		{
			s_efbAccessReadyEvent.Reset();
			if (s_FifoShuttingDown.IsSet())
				return 0;
			s_efbAccessRequested.Set();
			s_efbAccessReadyEvent.Wait();
		}
		else
			VideoFifo_CheckEFBAccess();

		return s_AccessEFBResult;
	}

	return 0;
}

static void DVDThread()
{
  Common::SetCurrentThreadName("DVD thread");

  while (true)
  {
    s_request_queue_expanded.Wait();

    if (s_dvd_thread_exiting.IsSet())
      return;

    ReadRequest request;
    while (s_request_queue.Pop(request))
    {
      FileMonitor::Log(*s_disc, request.partition, request.dvd_offset);

      std::vector<u8> buffer(request.length);
      if (!s_disc->Read(request.dvd_offset, request.length, buffer.data(), request.partition))
        buffer.resize(0);

      request.realtime_done_us = Common::Timer::GetTimeUs();

      s_result_queue.Push(ReadResult(std::move(request), std::move(buffer)));
      s_result_queue_expanded.Set();

      if (s_dvd_thread_exiting.IsSet())
        return;
    }
  }
}

static void VideoFifo_CheckPerfQueryRequest()
{
	if (s_perfQueryRequested.IsSet())
	{
		g_perf_query->FlushResults();
		s_perfQueryRequested.Clear();
		s_perfQueryReadyEvent.Set();
	}
}

void VideoFifo_CheckEFBAccess()
{
	if (s_efbAccessRequested.IsSet())
	{
		s_AccessEFBResult = g_renderer->AccessEFB(s_accessEFBArgs.type, s_accessEFBArgs.x, s_accessEFBArgs.y, s_accessEFBArgs.Data);
		s_efbAccessRequested.Clear();
		s_efbAccessReadyEvent.Set();
	}
}

// Run from the graphics thread (from Fifo.cpp)
static void VideoFifo_CheckSwapRequest()
{
	if (g_ActiveConfig.bUseXFB)
	{
		if (s_swapRequested.IsSet())
		{
			EFBRectangle rc;
			Renderer::Swap(s_beginFieldArgs.xfbAddr, s_beginFieldArgs.fbWidth, s_beginFieldArgs.fbHeight,rc);
			s_swapRequested.Clear();
		}
	}
}

void VideoBackendHardware::InitializeShared()
{
	VideoCommon_Init();

	s_swapRequested.Clear();
	s_efbAccessRequested.Clear();
	s_perfQueryRequested.Clear();
	s_FifoShuttingDown.Clear();
	memset((void*)&s_beginFieldArgs, 0, sizeof(s_beginFieldArgs));
	memset(&s_accessEFBArgs, 0, sizeof(s_accessEFBArgs));
	s_AccessEFBResult = 0;
	m_invalid = false;
}

void VideoBackendHardware::Video_ExitLoop()
{
	ExitGpuLoop();
	s_FifoShuttingDown.Set();
	s_efbAccessReadyEvent.Set();
	s_perfQueryReadyEvent.Set();
}

// Run from the CPU thread (from VideoInterface.cpp)
void VideoBackendHardware::Video_EndField()
{
	if (s_BackendInitialized)
	{
		s_swapRequested.Set();
	}
}

void Host_Message(int Id)
{
  if (Id == WM_USER_STOP)
  {
    s_running.Clear();
    updateMainFrameEvent.Set();
  }
}

 virtual void MainLoop()
 {
   while (s_running.IsSet())
   {
     Core::HostDispatchJobs();
     std::this_thread::sleep_for(std::chrono::milliseconds(100));
   }
 }

void VideoBackendHardware::InitializeShared()
{
	VideoCommon_Init();

	s_FifoShuttingDown.Clear();
	memset((void*)&s_beginFieldArgs, 0, sizeof(s_beginFieldArgs));
	m_invalid = false;
}

static void signal_handler(int)
{
  const char message[] = "A signal was received. A second signal will force Dolphin to stop.\n";
  if (write(STDERR_FILENO, message, sizeof(message)) < 0)
  {
  }
  s_shutdown_requested.Set();
}

void EmulatorState(bool running)
{
  s_emu_running_state.Set(running);
  if (running)
    s_gpu_mainloop.Wakeup();
  else
    s_gpu_mainloop.AllowSleep();
}

// May be executed from any thread, even the graphics thread.
// Created to allow for self shutdown.
void ExitGpuLoop()
{
  // This should break the wait loop in CPU thread
  CommandProcessor::fifo.bFF_GPReadEnable = false;
  FlushGpu();

  // Terminate GPU thread loop
  s_emu_running_state.Set();
  s_gpu_mainloop.Stop(false);
}

void HiresTexture::Shutdown()
{
  if (s_prefetcher.joinable())
  {
    s_textureCacheAbortLoading.Set();
    s_prefetcher.join();
  }

  s_textureMap.clear();
  s_textureCache.clear();
}