diff options
Diffstat (limited to 'src/core/Timer.cpp')
| -rw-r--r-- | src/core/Timer.cpp | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/src/core/Timer.cpp b/src/core/Timer.cpp new file mode 100644 index 00000000..543f582b --- /dev/null +++ b/src/core/Timer.cpp @@ -0,0 +1,235 @@ +#include <windows.h> +#include "common.h" +#include "patcher.h" +#include "DMAudio.h" +#include "Record.h" +#include "Timer.h" + +uint32 &CTimer::m_snTimeInMilliseconds = *(uint32*)0x885B48; +uint32 &CTimer::m_snTimeInMillisecondsPauseMode = *(uint32*)0x5F7614; +uint32 &CTimer::m_snTimeInMillisecondsNonClipped = *(uint32*)0x9412E8; +uint32 &CTimer::m_snPreviousTimeInMilliseconds = *(uint32*)0x8F29E4; +uint32 &CTimer::m_FrameCounter = *(uint32*)0x9412EC; +float &CTimer::ms_fTimeScale = *(float*)0x8F2C20; +float &CTimer::ms_fTimeStep = *(float*)0x8E2CB4; +float &CTimer::ms_fTimeStepNonClipped = *(float*)0x8E2C4C; +bool &CTimer::m_UserPause = *(bool*)0x95CD7C; +bool &CTimer::m_CodePause = *(bool*)0x95CDB1; + +//UInt32 oldPcTimer; +uint32 &oldPcTimer = *(uint32*)0x9434F4; + +//UInt32 suspendPcTimer; +uint32 &suspendPcTimer = *(uint32*)0x62A308; + +//UInt32 _nCyclesPerMS = 1; +uint32 &_nCyclesPerMS = *(uint32*)0x5F7610; + +//LARGE_INTEGER _oldPerfCounter; +LARGE_INTEGER &_oldPerfCounter = *(LARGE_INTEGER*)0x62A310; + +//LARGE_INTEGER perfSuspendCounter; +LARGE_INTEGER &perfSuspendCounter = *(LARGE_INTEGER*)0x62A318; + +//UInt32 suspendDepth; +uint32 &suspendDepth = *(uint32*)0x62A320; + +void CTimer::Initialise(void) +{ + debug("Initialising CTimer...\n"); + + ms_fTimeScale = 1.0f; + ms_fTimeStep = 1.0f; + suspendDepth = 0; + m_UserPause = false; + m_CodePause = false; + m_snTimeInMillisecondsNonClipped = 0; + m_snPreviousTimeInMilliseconds = 0; + m_snTimeInMilliseconds = 1; + + LARGE_INTEGER perfFreq; + if ( QueryPerformanceFrequency(&perfFreq) ) + { + OutputDebugString("Performance counter available\n"); + _nCyclesPerMS = uint32(perfFreq.QuadPart / 1000); + QueryPerformanceCounter(&_oldPerfCounter); + } + else + { + OutputDebugString("Performance counter not available, using millesecond timer\n"); + _nCyclesPerMS = 0; + oldPcTimer = RsTimer(); + } + + m_snTimeInMilliseconds = m_snPreviousTimeInMilliseconds; + + m_FrameCounter = 0; + + DMAudio.ResetTimers(m_snPreviousTimeInMilliseconds); + + debug("CTimer ready\n"); +} + +void CTimer::Shutdown(void) +{ + ; +} + +#if 1 +WRAPPER void CTimer::Update(void) { EAXJMP(0x4ACF70); } +#else +void CTimer::Update(void) +{ + m_snPreviousTimeInMilliseconds = m_snTimeInMilliseconds; + + if ( (double)_nCyclesPerMS != 0.0 ) + { + LARGE_INTEGER pc; + QueryPerformanceCounter(&pc); + + int32 updInCycles = (pc.LowPart - _oldPerfCounter.LowPart) & 0x7FFFFFFF; + + _oldPerfCounter = pc; + + double updInCyclesScaled = (double)updInCycles * ms_fTimeScale; + + double upd = updInCyclesScaled / (double)_nCyclesPerMS; + + m_snTimeInMillisecondsPauseMode = (Int64)(m_snTimeInMillisecondsPauseMode + upd); + + if ( GetIsPaused() ) + ms_fTimeStep = 0.0f; + else + { + m_snTimeInMilliseconds = (Int64)(m_snTimeInMilliseconds + upd); + m_snTimeInMillisecondsNonClipped = (Int64)(m_snTimeInMillisecondsNonClipped + upd); + ms_fTimeStep = updInCyclesScaled / (double)_nCyclesPerMS / 20.0; + } + } + else + { + uint32 timer = RsTimer(); + + uint32 updInMs = timer - oldPcTimer; + + double upd = (double)updInMs * ms_fTimeScale; + + oldPcTimer = timer; + + m_snTimeInMillisecondsPauseMode = (Int64)(m_snTimeInMillisecondsPauseMode + upd); + + if ( GetIsPaused() ) + ms_fTimeStep = 0.0f; + else + { + m_snTimeInMilliseconds = (Int64)(m_snTimeInMilliseconds + upd); + m_snTimeInMillisecondsNonClipped = (Int64)(m_snTimeInMillisecondsNonClipped + upd); + ms_fTimeStep = upd / 1000.0f * 50.0f; + } + } + + if ( ms_fTimeStep < 0.01f && !GetIsPaused() ) + ms_fTimeStep = 0.01f; + + ms_fTimeStepNonClipped = ms_fTimeStep; + + if ( CRecordDataForGame::RecordingState != RECORDSTATE_2 ) + { + ms_fTimeStep = min(3.0f, ms_fTimeStep); + + if ( (m_snTimeInMilliseconds - m_snPreviousTimeInMilliseconds) > 60 ) + m_snTimeInMilliseconds = m_snPreviousTimeInMilliseconds + 60; + } + + if ( CRecordDataForChase::Status == RECORDSTATE_1 ) + { + ms_fTimeStep = 1.0f; + m_snTimeInMilliseconds = m_snPreviousTimeInMilliseconds + 16; + } + + m_FrameCounter++; +} +#endif + +void CTimer::Suspend(void) +{ + if ( ++suspendDepth > 1 ) + return; + + if ( (double)_nCyclesPerMS != 0.0 ) + QueryPerformanceCounter(&perfSuspendCounter); + else + suspendPcTimer = RsTimer(); +} + +void CTimer::Resume(void) +{ + if ( --suspendDepth != 0 ) + return; + + if ( (double)_nCyclesPerMS != 0.0 ) + { + LARGE_INTEGER pc; + QueryPerformanceCounter(&pc); + + _oldPerfCounter.LowPart += pc.LowPart - perfSuspendCounter.LowPart; + } + else + oldPcTimer += RsTimer() - suspendPcTimer; +} + +uint32 CTimer::GetCyclesPerMillisecond(void) +{ + if (_nCyclesPerMS != 0) + return _nCyclesPerMS; + else + return 1; +} + +uint32 CTimer::GetCurrentTimeInCycles(void) +{ + if ( _nCyclesPerMS != 0 ) + { + LARGE_INTEGER pc; + QueryPerformanceCounter(&pc); + return (pc.LowPart - _oldPerfCounter.LowPart) & 0x7FFFFFFF; + } + else + return RsTimer() - oldPcTimer; +} + +bool CTimer::GetIsSlowMotionActive(void) +{ + return ms_fTimeScale < 1.0f; +} + +void CTimer::Stop(void) +{ + m_snPreviousTimeInMilliseconds = m_snTimeInMilliseconds; +} + +void CTimer::StartUserPause(void) +{ + m_UserPause = true; +} + +void CTimer::EndUserPause(void) +{ + m_UserPause = false; +} + +#if 0 +STARTPATCHES + InjectHook(0x4ACE60, CTimer::Initialise, PATCH_JUMP); + InjectHook(0x4ACF60, CTimer::Shutdown, PATCH_JUMP); + InjectHook(0x4ACF70, CTimer::Update, PATCH_JUMP); + InjectHook(0x4AD310, CTimer::Suspend, PATCH_JUMP); + InjectHook(0x4AD370, CTimer::Resume, PATCH_JUMP); + InjectHook(0x4AD3F0, CTimer::GetCyclesPerMillisecond, PATCH_JUMP); + InjectHook(0x4AD410, CTimer::GetCurrentTimeInCycles, PATCH_JUMP); + InjectHook(0x4AD450, CTimer::GetIsSlowMotionActive, PATCH_JUMP); + InjectHook(0x4AD480, CTimer::Stop, PATCH_JUMP); + InjectHook(0x4AD490, CTimer::StartUserPause, PATCH_JUMP); + InjectHook(0x4AD4A0, CTimer::EndUserPause, PATCH_JUMP); +ENDPATCHES +#endif |