mirror of
https://github.com/libretro/ppsspp.git
synced 2024-11-30 20:01:00 +00:00
114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
// Copyright (c) 2012- PPSSPP Project / Dolphin Project.
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, version 2.0 or later versions.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official git repository and contact information can be found at
|
|
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
|
|
|
|
#ifndef _CORETIMING_H
|
|
#define _CORETIMING_H
|
|
|
|
// This is a system to schedule events into the emulated machine's future. Time is measured
|
|
// in main CPU clock cycles.
|
|
|
|
// To schedule an event, you first have to register its type. This is where you pass in the
|
|
// callback. You then schedule events using the type id you get back.
|
|
|
|
// See HW/SystemTimers.cpp for the main part of Dolphin's usage of this scheduler.
|
|
|
|
// The int cyclesLate that the callbacks get is how many cycles late it was.
|
|
// So to schedule a new event on a regular basis:
|
|
// inside callback:
|
|
// ScheduleEvent(periodInCycles - cyclesLate, callback, "whatever")
|
|
|
|
#include "../Globals.h"
|
|
|
|
#include <string>
|
|
|
|
//const int CPU_HZ = 222000000;
|
|
extern int CPU_HZ;
|
|
|
|
inline int msToCycles(int ms) {
|
|
return CPU_HZ / 1000 * ms;
|
|
}
|
|
|
|
inline int msToCycles(float ms) {
|
|
return (int)(CPU_HZ * ms * (0.001f));
|
|
}
|
|
|
|
inline int msToCycles(double ms) {
|
|
return (int)(CPU_HZ * ms * (0.001));
|
|
}
|
|
|
|
inline int usToCycles(float us) {
|
|
return (int)(CPU_HZ * us * (0.000001f));
|
|
}
|
|
|
|
inline int usToCycles(int us) {
|
|
return (int)(CPU_HZ / 1000000 * us);
|
|
}
|
|
|
|
inline u64 cyclesToUs(u64 cycles) {
|
|
return cycles / (CPU_HZ / 1000000);
|
|
}
|
|
|
|
namespace CoreTiming
|
|
{
|
|
void Init();
|
|
void Shutdown();
|
|
|
|
typedef void (*TimedCallback)(u64 userdata, int cyclesLate);
|
|
|
|
u64 GetTicks();
|
|
u64 GetIdleTicks();
|
|
|
|
// Returns the event_type identifier.
|
|
int RegisterEvent(const char *name, TimedCallback callback);
|
|
void UnregisterAllEvents();
|
|
|
|
// userdata MAY NOT CONTAIN POINTERS. userdata might get written and reloaded from disk,
|
|
// when we implement state saves.
|
|
void ScheduleEvent(int cyclesIntoFuture, int event_type, u64 userdata=0);
|
|
void ScheduleEvent_Threadsafe(int cyclesIntoFuture, int event_type, u64 userdata=0);
|
|
void ScheduleEvent_Threadsafe_Immediate(int event_type, u64 userdata=0);
|
|
u64 UnscheduleEvent(int event_type, u64 userdata);
|
|
|
|
void RemoveEvent(int event_type);
|
|
void RemoveThreadsafeEvent(int event_type);
|
|
void RemoveAllEvents(int event_type);
|
|
bool IsScheduled(int event_type);
|
|
void Advance();
|
|
void MoveEvents();
|
|
void ProcessFifoWaitEvents();
|
|
|
|
// Pretend that the main CPU has executed enough cycles to reach the next event.
|
|
void Idle(int maxIdle = 0);
|
|
|
|
// Clear all pending events. This should ONLY be done on exit or state load.
|
|
void ClearPendingEvents();
|
|
|
|
void LogPendingEvents();
|
|
|
|
void RegisterAdvanceCallback(void (*callback)(int cyclesExecuted));
|
|
|
|
std::string GetScheduledEventsSummary();
|
|
|
|
void SetClockFrequencyMHz(int cpuMhz);
|
|
int GetClockFrequencyMHz();
|
|
extern int downcount;
|
|
extern int slicelength;
|
|
|
|
}; // end of namespace
|
|
|
|
#endif
|