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System: Reset throttler when audio buffers underflow

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Should hopefully reduce the chances of the audio source ending up out of
phase from the emulation when vsync is disabled.
This commit is contained in:
Connor McLaughlin
2020-12-07 02:43:46 +10:00
parent c8f33e340b
commit b44a654943
4 changed files with 28 additions and 4 deletions
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20
src/core/system.cpp
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@ -1216,8 +1216,22 @@ void UpdateThrottlePeriod()
static_cast<s32>(1000000000.0 / static_cast<double>(s_throttle_frequency) / static_cast<double>(s_target_speed));
}
void ResetThrottler()
{
s_last_throttle_time = 0;
s_throttle_timer.Reset();
}
void Throttle()
{
// Reset the throttler on audio buffer overflow, so we don't end up out of phase.
if (g_host_interface->GetAudioStream()->DidUnderflow())
{
Log_DevPrintf("Audio buffer underflowed, resetting throttler");
ResetThrottler();
return;
}
// Allow variance of up to 40ms either way.
constexpr s64 MAX_VARIANCE_TIME = INT64_C(40000000);
@ -1239,8 +1253,7 @@ void Throttle()
s_speed_lost_time_timestamp.Reset();
}
#endif
s_last_throttle_time = 0;
s_throttle_timer.Reset();
ResetThrottler();
}
else if (sleep_time >= MINIMUM_SLEEP_TIME)
{
@ -1294,8 +1307,7 @@ void ResetPerformanceCounters()
s_average_frame_time_accumulator = 0.0f;
s_worst_frame_time_accumulator = 0.0f;
s_fps_timer.Reset();
s_throttle_timer.Reset();
s_last_throttle_time = 0;
ResetThrottler();
}
bool LoadEXE(const char* filename)