xbmc/windowing/windows/Win32DPMSSupport.cpp

   1 /*
   2  *  Copyright (C) 2009-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #include "Win32DPMSSupport.h"
  10
  11 #include "ServiceBroker.h"
  12 #include "rendering/dx/RenderContext.h"
  13 #include "utils/log.h"
  14 #include "windowing/GraphicContext.h"
  15 #include "windowing/windows/WinSystemWin32.h"
  16
  17 CWin32DPMSSupport::CWin32DPMSSupport()
  18 {
  19   m_supportedModes.push_back(OFF);
  20   m_supportedModes.push_back(STANDBY);
  21 }
  22
  23 bool CWin32DPMSSupport::EnablePowerSaving(PowerSavingMode mode)
  24 {
  25   auto winSystem = dynamic_cast<CWinSystemWin32*>(CServiceBroker::GetWinSystem());
  26   if (!winSystem)
  27     return false;
  28
  29   if (!winSystem->GetGfxContext().IsFullScreenRoot())
  30   {
  31     CLog::Log(LOGDEBUG, "DPMS: not in fullscreen, power saving disabled");
  32     return false;
  33   }
  34
  35   switch (mode)
  36   {
  37   case OFF:
  38     // Turn off display
  39     return SendMessage(DX::Windowing()->GetHwnd(), WM_SYSCOMMAND, SC_MONITORPOWER, static_cast<LPARAM>(2)) == 0;
  40   case STANDBY:
  41     // Set display to low power
  42     return SendMessage(DX::Windowing()->GetHwnd(), WM_SYSCOMMAND, SC_MONITORPOWER, static_cast<LPARAM>(1)) == 0;
  43   default:
  44     return true;
  45   }
  46 }
  47
  48 bool CWin32DPMSSupport::DisablePowerSaving()
  49 {
  50   // Turn display on
  51   return SendMessage(DX::Windowing()->GetHwnd(), WM_SYSCOMMAND, SC_MONITORPOWER, static_cast<LPARAM>(-1)) == 0;
  52 }