/// <summary>
/// Applies the custom power plan.
/// </summary>
/// <returns></returns>
BOOL PowerSchemes::ApplyCustomPowerPlan()
{
BOOL bSuccess = TRUE;
/************************************************************************/
/* Create power request */
/************************************************************************/
powerReasonContext = new REASON_CONTEXT;
powerReasonContext->Version = POWER_REQUEST_CONTEXT_VERSION;
powerReasonContext->Flags = POWER_REQUEST_CONTEXT_SIMPLE_STRING; // POWER_REQUEST_CONTEXT_DETAILED_STRING
powerReasonContext->Reason.SimpleReasonString = L"Power capping for SMJ";
hPowerRequest = PowerCreateRequest(powerReasonContext);
// The calling process continues to run instead of being suspended or terminated
// by process lifetime management mechanisms. When and how long the process
// is allowed to run depends on the operating system and power policy settings.
//
// Value:
// PowerRequestDisplayRequired : The display remains on even if there is no user input for an extended period of time
// PowerRequestSystemRequired : The system continues to run instead of entering sleep after a period of user inactivity
// PowerRequestAwayModeRequired : Continues to run but turns off audio and video to give the appearance of sleep
// PowerRequestExecutionRequired : (win 8 or later)The calling process continues to run
// instead of being suspended or terminated by process
// lifetime management mechanisms
if(!PowerSetRequest(hPowerRequest, PowerRequestSystemRequired))
{
//printf("PowerSetRequest failed\n");
}
DWORD mySchemeIndex;
*mySchemeGuid = GUID_POWER_AWARE_SMJ;
if( !IsPowerSchemeExist(*mySchemeGuid, mySchemeIndex))
{
/* Not exist */
bSuccess&=CreateCustomPowerPlan();
}
/************************************************************************/
/* Apply new power scheme */
/************************************************************************/
bSuccess&=ApplyPowerScheme(*mySchemeGuid);
bSuccess&=GetCurrentPowerSettings();
return bSuccess;
}
bool win32_suppress_screensaver(void *data, bool enable)
{
#ifdef _XBOX
return false;
#else
typedef HANDLE (WINAPI * PowerCreateRequestPtr)(REASON_CONTEXT *context);
typedef BOOL (WINAPI * PowerSetRequestPtr)(HANDLE PowerRequest, POWER_REQUEST_TYPE RequestType);
HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
PowerCreateRequestPtr powerCreateRequest =
(PowerCreateRequestPtr)GetProcAddress(kernel32, "PowerCreateRequest");
PowerSetRequestPtr powerSetRequest =
(PowerSetRequestPtr)GetProcAddress(kernel32, "PowerSetRequest");
if(enable)
{
if(powerCreateRequest && powerSetRequest)
{
/* Windows 7, 8, 10 codepath */
POWER_REQUEST_CONTEXT RequestContext;
HANDLE Request;
RequestContext.Version = POWER_REQUEST_CONTEXT_VERSION;
RequestContext.Flags = POWER_REQUEST_CONTEXT_SIMPLE_STRING;
RequestContext.Reason.SimpleReasonString = L"RetroArch running";
Request = PowerCreateRequest(&RequestContext);
powerSetRequest( Request, PowerRequestDisplayRequired);
return true;
}
else
{
/* XP / Vista codepath */
SetThreadExecutionState(ES_DISPLAY_REQUIRED | ES_SYSTEM_REQUIRED);
return true;
}
}
return false;
#endif
}
