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Merge pull request #11449 from phire/resetThrottle 

Reset Throttle on savestate load
This commit is contained in:
JMC47 2023-01-15 21:47:42 -05:00 committed by GitHub
parent 30f0051f9c 7c202ab411
commit c4f4ecbb62
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 18 additions and 5 deletions
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17
Source/Core/Core/CoreTiming.cpp
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@ -101,8 +101,7 @@ void CoreTimingManager::Init()
m_is_global_timer_sane = true;
// Reset data used by the throttling system
m_throttle_last_cycle = 0;
m_throttle_deadline = Clock::now();
ResetThrottle(0);
m_event_fifo_id = 0;
m_ev_lost = RegisterEvent("_lost_event", &EmptyTimedCallback);
@ -175,11 +174,17 @@ void CoreTimingManager::DoState(PointerWrap& p)
});
p.DoMarker("CoreTimingEvents");
if (p.IsReadMode())
{
// When loading from a save state, we must assume the Event order is random and meaningless.
// The exact layout of the heap in memory is implementation defined, therefore it is platform
// and library version specific.
if (p.IsReadMode())
std::make_heap(m_event_queue.begin(), m_event_queue.end(), std::greater<Event>());
// The stave state has changed the time, so our previous Throttle targets are invalid.
// Especially when global_time goes down; So we create a fake throttle update.
ResetThrottle(m_globals.global_timer);
}
}
// This should only be called from the CPU thread. If you are calling
@ -382,6 +387,12 @@ void CoreTimingManager::Throttle(const s64 target_cycle)
}
}
void CoreTimingManager::ResetThrottle(s64 cycle)
{
m_throttle_last_cycle = cycle;
m_throttle_deadline = Clock::now();
}
TimePoint CoreTimingManager::GetCPUTimePoint(s64 cyclesLate) const
{
return TimePoint(std::chrono::duration_cast<DT>(DT_s(m_globals.global_timer - cyclesLate) /

2
Source/Core/Core/CoreTiming.h
View File

@ -185,6 +185,8 @@ private:
s64 m_throttle_clock_per_sec;
s64 m_throttle_min_clock_per_sleep;
void ResetThrottle(s64 cycle);
int DowncountToCycles(int downcount) const;
int CyclesToDowncount(int cycles) const;
};