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CoreTiming: Move VISkip calculation into a separate function.

This commit is contained in:
Jordan Woyak 2025-03-08 01:14:41 -06:00
parent 7a25a21fef
commit 552aa08def
2 changed files with 12 additions and 4 deletions
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15
Source/Core/Core/CoreTiming.cpp
View File

@ -436,10 +436,7 @@ void CoreTimingManager::Throttle(const s64 target_cycle)
target_time += adjustment;
}
// Skip the VI interrupt if the CPU is lagging by a certain amount.
// It doesn't matter what amount of lag we skip VI at, as long as it's constant.
const TimePoint vi_target = time - std::min(m_max_fallback, m_max_variance) / 2;
m_throttle_disable_vi_int = target_time < vi_target;
UpdateVISkip(time, target_time);
SleepUntil(target_time);
}
@ -469,6 +466,16 @@ void CoreTimingManager::ResetThrottle(s64 cycle)
m_throttle_reference_time = Clock::now();
}
void CoreTimingManager::UpdateVISkip(TimePoint current_time, TimePoint target_time)
{
const DT vi_fallback = std::min(m_max_variance, m_max_fallback);
// Skip the VI interrupt if the CPU is lagging by a certain amount.
// It doesn't matter what amount of lag we skip VI at, as long as it's constant.
const TimePoint vi_target = current_time - vi_fallback / 2;
m_throttle_disable_vi_int = target_time < vi_target;
}
bool CoreTimingManager::GetVISkip() const
{
return m_throttle_disable_vi_int && g_ActiveConfig.bVISkip && !Core::WantsDeterminism();

1
Source/Core/Core/CoreTiming.h
View File

@ -215,6 +215,7 @@ private:
void UpdateSpeedLimit(s64 cycle, double new_speed);
void ResetThrottle(s64 cycle);
TimePoint CalculateTargetHostTimeInternal(s64 target_cycle);
void UpdateVISkip(TimePoint current_time, TimePoint target_time);
int DowncountToCycles(int downcount) const;
int CyclesToDowncount(int cycles) const;