// Apply Frame Limit and Display FPS info
// This should only be called from VI
void VideoThrottle()
{
u32 TargetVPS = (SConfig::GetInstance().m_Framelimit > 2) ?
(SConfig::GetInstance().m_Framelimit - 1) * 5 : VideoInterface::TargetRefreshRate;
// Disable the frame-limiter when the throttle (Tab) key is held down. Audio throttle: m_Framelimit = 2
if (SConfig::GetInstance().m_Framelimit && SConfig::GetInstance().m_Framelimit != 2 && !Host_GetKeyState('\t'))
{
u32 frametime = ((SConfig::GetInstance().b_UseFPS)? Common::AtomicLoad(DrawnFrame) : DrawnVideo) * 1000 / TargetVPS;
u32 timeDifference = (u32)Timer.GetTimeDifference();
if (timeDifference < frametime) {
Common::SleepCurrentThread(frametime - timeDifference - 1);
}
while ((u32)Timer.GetTimeDifference() < frametime)
Common::YieldCPU();
//Common::SleepCurrentThread(1);
}
// Update info per second
u32 ElapseTime = (u32)Timer.GetTimeDifference();
if ((ElapseTime >= 1000 && DrawnVideo > 0) || g_requestRefreshInfo)
{
UpdateTitle();
// Reset counter
Timer.Update();
Common::AtomicStore(DrawnFrame, 0);
DrawnVideo = 0;
}
DrawnVideo++;
}
void ThrottleCallback(u64 last_time, int cyclesLate)
{
u32 time = Common::Timer::GetTimeMs();
int diff = (u32)last_time - time;
bool frame_limiter = SConfig::GetInstance().m_Framelimit && SConfig::GetInstance().m_Framelimit != 2 && !Host_GetKeyState('\t');
u32 next_event = GetTicksPerSecond()/1000;
if (SConfig::GetInstance().m_Framelimit > 2)
{
next_event = next_event * (SConfig::GetInstance().m_Framelimit - 1) * 5 / VideoInterface::TargetRefreshRate;
}
const int max_fallback = 40; // 40 ms for one frame on 25 fps games
if (frame_limiter && abs(diff) > max_fallback)
{
WARN_LOG(COMMON, "system too %s, %d ms skipped", diff<0 ? "slow" : "fast", abs(diff) - max_fallback);
last_time = time - max_fallback;
}
else if (frame_limiter && diff > 0)
Common::SleepCurrentThread(diff);
CoreTiming::ScheduleEvent(next_event - cyclesLate, et_Throttle, last_time + 1);
}
// Apply Frame Limit and Display FPS info
// This should only be called from VI
void VideoThrottle()
{
u32 TargetVPS = (SConfig::GetInstance().m_Framelimit > 2) ?
(SConfig::GetInstance().m_Framelimit - 1) * 5 : VideoInterface::TargetRefreshRate;
// Disable the frame-limiter when the throttle (Tab) key is held down. Audio throttle: m_Framelimit = 2
if (SConfig::GetInstance().m_Framelimit && SConfig::GetInstance().m_Framelimit != 2 && !Host_GetKeyState('\t'))
{
u32 frametime = ((SConfig::GetInstance().b_UseFPS)? Common::AtomicLoad(DrawnFrame) : DrawnVideo) * 1000 / TargetVPS;
u32 timeDifference = (u32)Timer.GetTimeDifference();
if (timeDifference < frametime) {
Common::SleepCurrentThread(frametime - timeDifference - 1);
}
while ((u32)Timer.GetTimeDifference() < frametime)
Common::YieldCPU();
//Common::SleepCurrentThread(1);
}
// Update info per second
u32 ElapseTime = (u32)Timer.GetTimeDifference();
if ((ElapseTime >= 1000 && DrawnVideo > 0) || g_requestRefreshInfo)
{
g_requestRefreshInfo = false;
SCoreStartupParameter& _CoreParameter = SConfig::GetInstance().m_LocalCoreStartupParameter;
if (ElapseTime == 0)
ElapseTime = 1;
u32 FPS = Common::AtomicLoad(DrawnFrame) * 1000 / ElapseTime;
u32 VPS = DrawnVideo * 1000 / ElapseTime;
u32 Speed = DrawnVideo * (100 * 1000) / (VideoInterface::TargetRefreshRate * ElapseTime);
// Settings are shown the same for both extended and summary info
std::string SSettings = StringFromFormat("%s %s", cpu_core_base->GetName(), _CoreParameter.bCPUThread ? "DC" : "SC");
// Use extended or summary information. The summary information does not print the ticks data,
// that's more of a debugging interest, it can always be optional of course if someone is interested.
//#define EXTENDED_INFO
#ifdef EXTENDED_INFO
u64 newTicks = CoreTiming::GetTicks();
u64 newIdleTicks = CoreTiming::GetIdleTicks();
u64 diff = (newTicks - ticks) / 1000000;
u64 idleDiff = (newIdleTicks - idleTicks) / 1000000;
ticks = newTicks;
idleTicks = newIdleTicks;
float TicksPercentage = (float)diff / (float)(SystemTimers::GetTicksPerSecond() / 1000000) * 100;
std::string SFPS = StringFromFormat("FPS: %u - VPS: %u - SPEED: %u%%", FPS, VPS, Speed);
SFPS += StringFromFormat(" | CPU: %s%i MHz [Real: %i + IdleSkip: %i] / %i MHz (%s%3.0f%%)",
_CoreParameter.bSkipIdle ? "~" : "",
(int)(diff),
(int)(diff - idleDiff),
(int)(idleDiff),
SystemTimers::GetTicksPerSecond() / 1000000,
_CoreParameter.bSkipIdle ? "~" : "",
TicksPercentage);
#else // Summary information
std::string SFPS;
if (Movie::IsPlayingInput())
SFPS = StringFromFormat("VI: %u/%u - Frame: %u/%u - FPS: %u - VPS: %u - SPEED: %u%%", (u32)Movie::g_currentFrame, (u32)Movie::g_totalFrames, (u32)Movie::g_currentInputCount, (u32)Movie::g_totalInputCount, FPS, VPS, Speed);
else if (Movie::IsRecordingInput())
SFPS = StringFromFormat("VI: %u - Frame: %u - FPS: %u - VPS: %u - SPEED: %u%%", (u32)Movie::g_currentFrame, (u32)Movie::g_currentInputCount, FPS, VPS, Speed);
else
SFPS = StringFromFormat("FPS: %u - VPS: %u - SPEED: %u%%", FPS, VPS, Speed);
#endif
// This is our final "frame counter" string
std::string SMessage = StringFromFormat("%s | %s",
SSettings.c_str(), SFPS.c_str());
std::string TMessage = StringFromFormat("%s | ", scm_rev_str) +
SMessage;
// Show message
g_video_backend->UpdateFPSDisplay(SMessage.c_str());
if (_CoreParameter.bRenderToMain &&
SConfig::GetInstance().m_InterfaceStatusbar) {
Host_UpdateStatusBar(SMessage.c_str());
Host_UpdateTitle(scm_rev_str);
} else
Host_UpdateTitle(TMessage.c_str());
// Reset counter
Timer.Update();
Common::AtomicStore(DrawnFrame, 0);
DrawnVideo = 0;
}
DrawnVideo++;
}