diff options
| author | Jørgen P. Tjernø <[email protected]> | 2013-12-02 19:31:46 -0800 |
|---|---|---|
| committer | Jørgen P. Tjernø <[email protected]> | 2013-12-02 19:46:31 -0800 |
| commit | f56bb35301836e56582a575a75864392a0177875 (patch) | |
| tree | de61ddd39de3e7df52759711950b4c288592f0dc /mp/src/public/tier0/fasttimer.h | |
| parent | Mark some more files as text. (diff) | |
| download | source-sdk-2013-f56bb35301836e56582a575a75864392a0177875.tar.xz source-sdk-2013-f56bb35301836e56582a575a75864392a0177875.zip | |
Fix line endings. WHAMMY.
Diffstat (limited to 'mp/src/public/tier0/fasttimer.h')
| -rw-r--r-- | mp/src/public/tier0/fasttimer.h | 1142 |
1 files changed, 571 insertions, 571 deletions
diff --git a/mp/src/public/tier0/fasttimer.h b/mp/src/public/tier0/fasttimer.h index e9833b29..0f49a43e 100644 --- a/mp/src/public/tier0/fasttimer.h +++ b/mp/src/public/tier0/fasttimer.h @@ -1,571 +1,571 @@ -//========= Copyright Valve Corporation, All rights reserved. ============//
-//
-// Purpose:
-//
-// $NoKeywords: $
-//=============================================================================//
-
-#ifndef FASTTIMER_H
-#define FASTTIMER_H
-#ifdef _WIN32
-#pragma once
-#endif
-
-#ifdef _WIN32
-#include <intrin.h>
-#endif
-
-#include <assert.h>
-#include "tier0/platform.h"
-
-PLATFORM_INTERFACE uint64 g_ClockSpeed;
-#if defined( _X360 ) && defined( _CERT )
-PLATFORM_INTERFACE unsigned long g_dwFakeFastCounter;
-#endif
-
-PLATFORM_INTERFACE double g_ClockSpeedMicrosecondsMultiplier;
-PLATFORM_INTERFACE double g_ClockSpeedMillisecondsMultiplier;
-PLATFORM_INTERFACE double g_ClockSpeedSecondsMultiplier;
-
-class CCycleCount
-{
-friend class CFastTimer;
-
-public:
- CCycleCount();
- CCycleCount( uint64 cycles );
-
- void Sample(); // Sample the clock. This takes about 34 clocks to execute (or 26,000 calls per millisecond on a P900).
-
- void Init(); // Set to zero.
- void Init( float initTimeMsec );
- void Init( double initTimeMsec ) { Init( (float)initTimeMsec ); }
- void Init( uint64 cycles );
- bool IsLessThan( CCycleCount const &other ) const; // Compare two counts.
-
- // Convert to other time representations. These functions are slow, so it's preferable to call them
- // during display rather than inside a timing block.
- unsigned long GetCycles() const;
- uint64 GetLongCycles() const;
-
- unsigned long GetMicroseconds() const;
- uint64 GetUlMicroseconds() const;
- double GetMicrosecondsF() const;
- void SetMicroseconds( unsigned long nMicroseconds );
-
- unsigned long GetMilliseconds() const;
- double GetMillisecondsF() const;
-
- double GetSeconds() const;
-
- CCycleCount& operator+=( CCycleCount const &other );
-
- // dest = rSrc1 + rSrc2
- static void Add( CCycleCount const &rSrc1, CCycleCount const &rSrc2, CCycleCount &dest ); // Add two samples together.
-
- // dest = rSrc1 - rSrc2
- static void Sub( CCycleCount const &rSrc1, CCycleCount const &rSrc2, CCycleCount &dest ); // Add two samples together.
-
- static uint64 GetTimestamp();
-
- uint64 m_Int64;
-};
-
-class PLATFORM_CLASS CClockSpeedInit
-{
-public:
- CClockSpeedInit()
- {
- Init();
- }
-
- static void Init();
-};
-
-class CFastTimer
-{
-public:
- // These functions are fast to call and should be called from your sampling code.
- void Start();
- void End();
-
- const CCycleCount & GetDuration() const; // Get the elapsed time between Start and End calls.
- CCycleCount GetDurationInProgress() const; // Call without ending. Not that cheap.
-
- // Return number of cycles per second on this processor.
- static inline int64 GetClockSpeed();
-
-private:
- CCycleCount m_Duration;
-#ifdef DEBUG_FASTTIMER
- bool m_bRunning; // Are we currently running?
-#endif
-};
-
-
-// This is a helper class that times whatever block of code it's in
-class CTimeScope
-{
-public:
- CTimeScope( CFastTimer *pTimer );
- ~CTimeScope();
-
-private:
- CFastTimer *m_pTimer;
-};
-
-inline CTimeScope::CTimeScope( CFastTimer *pTotal )
-{
- m_pTimer = pTotal;
- m_pTimer->Start();
-}
-
-inline CTimeScope::~CTimeScope()
-{
- m_pTimer->End();
-}
-
-// This is a helper class that times whatever block of code it's in and
-// adds the total (int microseconds) to a global counter.
-class CTimeAdder
-{
-public:
- CTimeAdder( CCycleCount *pTotal );
- ~CTimeAdder();
-
- void End();
-
-private:
- CCycleCount *m_pTotal;
- CFastTimer m_Timer;
-};
-
-inline CTimeAdder::CTimeAdder( CCycleCount *pTotal )
-{
- m_pTotal = pTotal;
- m_Timer.Start();
-}
-
-inline CTimeAdder::~CTimeAdder()
-{
- End();
-}
-
-inline void CTimeAdder::End()
-{
- if( m_pTotal )
- {
- m_Timer.End();
- *m_pTotal += m_Timer.GetDuration();
- m_pTotal = 0;
- }
-}
-
-
-
-// -------------------------------------------------------------------------- //
-// Simple tool to support timing a block of code, and reporting the results on
-// program exit or at each iteration
-//
-// Macros used because dbg.h uses this header, thus Msg() is unavailable
-// -------------------------------------------------------------------------- //
-
-#define PROFILE_SCOPE(name) \
- class C##name##ACC : public CAverageCycleCounter \
- { \
- public: \
- ~C##name##ACC() \
- { \
- Msg("%-48s: %6.3f avg (%8.1f total, %7.3f peak, %5d iters)\n", \
- #name, \
- GetAverageMilliseconds(), \
- GetTotalMilliseconds(), \
- GetPeakMilliseconds(), \
- GetIters() ); \
- } \
- }; \
- static C##name##ACC name##_ACC; \
- CAverageTimeMarker name##_ATM( &name##_ACC )
-
-#define TIME_SCOPE(name) \
- class CTimeScopeMsg_##name \
- { \
- public: \
- CTimeScopeMsg_##name() { m_Timer.Start(); } \
- ~CTimeScopeMsg_##name() \
- { \
- m_Timer.End(); \
- Msg( #name "time: %.4fms\n", m_Timer.GetDuration().GetMillisecondsF() ); \
- } \
- private: \
- CFastTimer m_Timer; \
- } name##_TSM;
-
-
-// -------------------------------------------------------------------------- //
-
-class CAverageCycleCounter
-{
-public:
- CAverageCycleCounter();
-
- void Init();
- void MarkIter( const CCycleCount &duration );
-
- unsigned GetIters() const;
-
- double GetAverageMilliseconds() const;
- double GetTotalMilliseconds() const;
- double GetPeakMilliseconds() const;
-
-private:
- unsigned m_nIters;
- CCycleCount m_Total;
- CCycleCount m_Peak;
- bool m_fReport;
- const tchar *m_pszName;
-};
-
-// -------------------------------------------------------------------------- //
-
-class CAverageTimeMarker
-{
-public:
- CAverageTimeMarker( CAverageCycleCounter *pCounter );
- ~CAverageTimeMarker();
-
-private:
- CAverageCycleCounter *m_pCounter;
- CFastTimer m_Timer;
-};
-
-
-// -------------------------------------------------------------------------- //
-// CCycleCount inlines.
-// -------------------------------------------------------------------------- //
-
-inline CCycleCount::CCycleCount()
-{
- Init( (uint64)0 );
-}
-
-inline CCycleCount::CCycleCount( uint64 cycles )
-{
- Init( cycles );
-}
-
-inline void CCycleCount::Init()
-{
- Init( (uint64)0 );
-}
-
-inline void CCycleCount::Init( float initTimeMsec )
-{
- if ( g_ClockSpeedMillisecondsMultiplier > 0 )
- Init( (uint64)(initTimeMsec / g_ClockSpeedMillisecondsMultiplier) );
- else
- Init( (uint64)0 );
-}
-
-inline void CCycleCount::Init( uint64 cycles )
-{
- m_Int64 = cycles;
-}
-
-inline void CCycleCount::Sample()
-{
- m_Int64 = Plat_Rdtsc();
-}
-
-inline CCycleCount& CCycleCount::operator+=( CCycleCount const &other )
-{
- m_Int64 += other.m_Int64;
- return *this;
-}
-
-
-inline void CCycleCount::Add( CCycleCount const &rSrc1, CCycleCount const &rSrc2, CCycleCount &dest )
-{
- dest.m_Int64 = rSrc1.m_Int64 + rSrc2.m_Int64;
-}
-
-inline void CCycleCount::Sub( CCycleCount const &rSrc1, CCycleCount const &rSrc2, CCycleCount &dest )
-{
- dest.m_Int64 = rSrc1.m_Int64 - rSrc2.m_Int64;
-}
-
-inline uint64 CCycleCount::GetTimestamp()
-{
- CCycleCount c;
- c.Sample();
- return c.GetLongCycles();
-}
-
-inline bool CCycleCount::IsLessThan(CCycleCount const &other) const
-{
- return m_Int64 < other.m_Int64;
-}
-
-
-inline unsigned long CCycleCount::GetCycles() const
-{
- return (unsigned long)m_Int64;
-}
-
-inline uint64 CCycleCount::GetLongCycles() const
-{
- return m_Int64;
-}
-
-inline unsigned long CCycleCount::GetMicroseconds() const
-{
- return (unsigned long)((m_Int64 * 1000000) / g_ClockSpeed);
-}
-
-inline uint64 CCycleCount::GetUlMicroseconds() const
-{
- return ((m_Int64 * 1000000) / g_ClockSpeed);
-}
-
-
-inline double CCycleCount::GetMicrosecondsF() const
-{
- return (double)( m_Int64 * g_ClockSpeedMicrosecondsMultiplier );
-}
-
-
-inline void CCycleCount::SetMicroseconds( unsigned long nMicroseconds )
-{
- m_Int64 = ((uint64)nMicroseconds * g_ClockSpeed) / 1000000;
-}
-
-
-inline unsigned long CCycleCount::GetMilliseconds() const
-{
- return (unsigned long)((m_Int64 * 1000) / g_ClockSpeed);
-}
-
-
-inline double CCycleCount::GetMillisecondsF() const
-{
- return (double)( m_Int64 * g_ClockSpeedMillisecondsMultiplier );
-}
-
-
-inline double CCycleCount::GetSeconds() const
-{
- return (double)( m_Int64 * g_ClockSpeedSecondsMultiplier );
-}
-
-
-// -------------------------------------------------------------------------- //
-// CFastTimer inlines.
-// -------------------------------------------------------------------------- //
-inline void CFastTimer::Start()
-{
- m_Duration.Sample();
-#ifdef DEBUG_FASTTIMER
- m_bRunning = true;
-#endif
-}
-
-
-inline void CFastTimer::End()
-{
- CCycleCount cnt;
- cnt.Sample();
- if ( IsX360() )
- {
- // have to handle rollover, hires timer is only accurate to 32 bits
- // more than one overflow should not have occurred, otherwise caller should use a slower timer
- if ( (uint64)cnt.m_Int64 <= (uint64)m_Duration.m_Int64 )
- {
- // rollover occurred
- cnt.m_Int64 += 0x100000000LL;
- }
- }
-
- m_Duration.m_Int64 = cnt.m_Int64 - m_Duration.m_Int64;
-
-#ifdef DEBUG_FASTTIMER
- m_bRunning = false;
-#endif
-}
-
-inline CCycleCount CFastTimer::GetDurationInProgress() const
-{
- CCycleCount cnt;
- cnt.Sample();
- if ( IsX360() )
- {
- // have to handle rollover, hires timer is only accurate to 32 bits
- // more than one overflow should not have occurred, otherwise caller should use a slower timer
- if ( (uint64)cnt.m_Int64 <= (uint64)m_Duration.m_Int64 )
- {
- // rollover occurred
- cnt.m_Int64 += 0x100000000LL;
- }
- }
-
- CCycleCount result;
- result.m_Int64 = cnt.m_Int64 - m_Duration.m_Int64;
-
- return result;
-}
-
-
-inline int64 CFastTimer::GetClockSpeed()
-{
- return g_ClockSpeed;
-}
-
-
-inline CCycleCount const& CFastTimer::GetDuration() const
-{
-#ifdef DEBUG_FASTTIMER
- assert( !m_bRunning );
-#endif
- return m_Duration;
-}
-
-
-// -------------------------------------------------------------------------- //
-// CAverageCycleCounter inlines
-
-inline CAverageCycleCounter::CAverageCycleCounter()
- : m_nIters( 0 )
-{
-}
-
-inline void CAverageCycleCounter::Init()
-{
- m_Total.Init();
- m_Peak.Init();
- m_nIters = 0;
-}
-
-inline void CAverageCycleCounter::MarkIter( const CCycleCount &duration )
-{
- ++m_nIters;
- m_Total += duration;
- if ( m_Peak.IsLessThan( duration ) )
- m_Peak = duration;
-}
-
-inline unsigned CAverageCycleCounter::GetIters() const
-{
- return m_nIters;
-}
-
-inline double CAverageCycleCounter::GetAverageMilliseconds() const
-{
- if ( m_nIters )
- return (m_Total.GetMillisecondsF() / (double)m_nIters);
- else
- return 0;
-}
-
-inline double CAverageCycleCounter::GetTotalMilliseconds() const
-{
- return m_Total.GetMillisecondsF();
-}
-
-inline double CAverageCycleCounter::GetPeakMilliseconds() const
-{
- return m_Peak.GetMillisecondsF();
-}
-
-// -------------------------------------------------------------------------- //
-
-inline CAverageTimeMarker::CAverageTimeMarker( CAverageCycleCounter *pCounter )
-{
- m_pCounter = pCounter;
- m_Timer.Start();
-}
-
-inline CAverageTimeMarker::~CAverageTimeMarker()
-{
- m_Timer.End();
- m_pCounter->MarkIter( m_Timer.GetDuration() );
-}
-
-
-// CLimitTimer
-// Use this to time whether a desired interval of time has passed. It's extremely fast
-// to check while running. NOTE: CMicroSecOverage() and CMicroSecLeft() are not as fast to check.
-class CLimitTimer
-{
-public:
- CLimitTimer() {}
- CLimitTimer( uint64 cMicroSecDuration ) { SetLimit( cMicroSecDuration ); }
- void SetLimit( uint64 m_cMicroSecDuration );
- bool BLimitReached();
-
- int CMicroSecOverage();
- uint64 CMicroSecLeft();
-
-private:
- uint64 m_lCycleLimit;
-};
-
-
-//-----------------------------------------------------------------------------
-// Purpose: Initializes the limit timer with a period of time to measure.
-// Input : cMicroSecDuration - How long a time period to measure
-//-----------------------------------------------------------------------------
-inline void CLimitTimer::SetLimit( uint64 cMicroSecDuration )
-{
- uint64 dlCycles = ( ( uint64 ) cMicroSecDuration * g_ClockSpeed ) / ( uint64 ) 1000000L;
- CCycleCount cycleCount;
- cycleCount.Sample( );
- m_lCycleLimit = cycleCount.GetLongCycles( ) + dlCycles;
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: Determines whether our specified time period has passed
-// Output: true if at least the specified time period has passed
-//-----------------------------------------------------------------------------
-inline bool CLimitTimer::BLimitReached( )
-{
- CCycleCount cycleCount;
- cycleCount.Sample( );
- return ( cycleCount.GetLongCycles( ) >= m_lCycleLimit );
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: If we're over our specified time period, return the amount of the overage.
-// Output: # of microseconds since we reached our specified time period.
-//-----------------------------------------------------------------------------
-inline int CLimitTimer::CMicroSecOverage()
-{
- CCycleCount cycleCount;
- cycleCount.Sample();
- uint64 lcCycles = cycleCount.GetLongCycles();
-
- if ( lcCycles < m_lCycleLimit )
- return 0;
-
- return( ( int ) ( ( lcCycles - m_lCycleLimit ) * ( uint64 ) 1000000L / g_ClockSpeed ) );
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: If we're under our specified time period, return the amount under.
-// Output: # of microseconds until we reached our specified time period, 0 if we've passed it
-//-----------------------------------------------------------------------------
-inline uint64 CLimitTimer::CMicroSecLeft()
-{
- CCycleCount cycleCount;
- cycleCount.Sample();
- uint64 lcCycles = cycleCount.GetLongCycles();
-
- if ( lcCycles >= m_lCycleLimit )
- return 0;
-
- return( ( uint64 ) ( ( m_lCycleLimit - lcCycles ) * ( uint64 ) 1000000L / g_ClockSpeed ) );
-}
-
-
-#endif // FASTTIMER_H
+//========= Copyright Valve Corporation, All rights reserved. ============// +// +// Purpose: +// +// $NoKeywords: $ +//=============================================================================// + +#ifndef FASTTIMER_H +#define FASTTIMER_H +#ifdef _WIN32 +#pragma once +#endif + +#ifdef _WIN32 +#include <intrin.h> +#endif + +#include <assert.h> +#include "tier0/platform.h" + +PLATFORM_INTERFACE uint64 g_ClockSpeed; +#if defined( _X360 ) && defined( _CERT ) +PLATFORM_INTERFACE unsigned long g_dwFakeFastCounter; +#endif + +PLATFORM_INTERFACE double g_ClockSpeedMicrosecondsMultiplier; +PLATFORM_INTERFACE double g_ClockSpeedMillisecondsMultiplier; +PLATFORM_INTERFACE double g_ClockSpeedSecondsMultiplier; + +class CCycleCount +{ +friend class CFastTimer; + +public: + CCycleCount(); + CCycleCount( uint64 cycles ); + + void Sample(); // Sample the clock. This takes about 34 clocks to execute (or 26,000 calls per millisecond on a P900). + + void Init(); // Set to zero. + void Init( float initTimeMsec ); + void Init( double initTimeMsec ) { Init( (float)initTimeMsec ); } + void Init( uint64 cycles ); + bool IsLessThan( CCycleCount const &other ) const; // Compare two counts. + + // Convert to other time representations. These functions are slow, so it's preferable to call them + // during display rather than inside a timing block. + unsigned long GetCycles() const; + uint64 GetLongCycles() const; + + unsigned long GetMicroseconds() const; + uint64 GetUlMicroseconds() const; + double GetMicrosecondsF() const; + void SetMicroseconds( unsigned long nMicroseconds ); + + unsigned long GetMilliseconds() const; + double GetMillisecondsF() const; + + double GetSeconds() const; + + CCycleCount& operator+=( CCycleCount const &other ); + + // dest = rSrc1 + rSrc2 + static void Add( CCycleCount const &rSrc1, CCycleCount const &rSrc2, CCycleCount &dest ); // Add two samples together. + + // dest = rSrc1 - rSrc2 + static void Sub( CCycleCount const &rSrc1, CCycleCount const &rSrc2, CCycleCount &dest ); // Add two samples together. + + static uint64 GetTimestamp(); + + uint64 m_Int64; +}; + +class PLATFORM_CLASS CClockSpeedInit +{ +public: + CClockSpeedInit() + { + Init(); + } + + static void Init(); +}; + +class CFastTimer +{ +public: + // These functions are fast to call and should be called from your sampling code. + void Start(); + void End(); + + const CCycleCount & GetDuration() const; // Get the elapsed time between Start and End calls. + CCycleCount GetDurationInProgress() const; // Call without ending. Not that cheap. + + // Return number of cycles per second on this processor. + static inline int64 GetClockSpeed(); + +private: + CCycleCount m_Duration; +#ifdef DEBUG_FASTTIMER + bool m_bRunning; // Are we currently running? +#endif +}; + + +// This is a helper class that times whatever block of code it's in +class CTimeScope +{ +public: + CTimeScope( CFastTimer *pTimer ); + ~CTimeScope(); + +private: + CFastTimer *m_pTimer; +}; + +inline CTimeScope::CTimeScope( CFastTimer *pTotal ) +{ + m_pTimer = pTotal; + m_pTimer->Start(); +} + +inline CTimeScope::~CTimeScope() +{ + m_pTimer->End(); +} + +// This is a helper class that times whatever block of code it's in and +// adds the total (int microseconds) to a global counter. +class CTimeAdder +{ +public: + CTimeAdder( CCycleCount *pTotal ); + ~CTimeAdder(); + + void End(); + +private: + CCycleCount *m_pTotal; + CFastTimer m_Timer; +}; + +inline CTimeAdder::CTimeAdder( CCycleCount *pTotal ) +{ + m_pTotal = pTotal; + m_Timer.Start(); +} + +inline CTimeAdder::~CTimeAdder() +{ + End(); +} + +inline void CTimeAdder::End() +{ + if( m_pTotal ) + { + m_Timer.End(); + *m_pTotal += m_Timer.GetDuration(); + m_pTotal = 0; + } +} + + + +// -------------------------------------------------------------------------- // +// Simple tool to support timing a block of code, and reporting the results on +// program exit or at each iteration +// +// Macros used because dbg.h uses this header, thus Msg() is unavailable +// -------------------------------------------------------------------------- // + +#define PROFILE_SCOPE(name) \ + class C##name##ACC : public CAverageCycleCounter \ + { \ + public: \ + ~C##name##ACC() \ + { \ + Msg("%-48s: %6.3f avg (%8.1f total, %7.3f peak, %5d iters)\n", \ + #name, \ + GetAverageMilliseconds(), \ + GetTotalMilliseconds(), \ + GetPeakMilliseconds(), \ + GetIters() ); \ + } \ + }; \ + static C##name##ACC name##_ACC; \ + CAverageTimeMarker name##_ATM( &name##_ACC ) + +#define TIME_SCOPE(name) \ + class CTimeScopeMsg_##name \ + { \ + public: \ + CTimeScopeMsg_##name() { m_Timer.Start(); } \ + ~CTimeScopeMsg_##name() \ + { \ + m_Timer.End(); \ + Msg( #name "time: %.4fms\n", m_Timer.GetDuration().GetMillisecondsF() ); \ + } \ + private: \ + CFastTimer m_Timer; \ + } name##_TSM; + + +// -------------------------------------------------------------------------- // + +class CAverageCycleCounter +{ +public: + CAverageCycleCounter(); + + void Init(); + void MarkIter( const CCycleCount &duration ); + + unsigned GetIters() const; + + double GetAverageMilliseconds() const; + double GetTotalMilliseconds() const; + double GetPeakMilliseconds() const; + +private: + unsigned m_nIters; + CCycleCount m_Total; + CCycleCount m_Peak; + bool m_fReport; + const tchar *m_pszName; +}; + +// -------------------------------------------------------------------------- // + +class CAverageTimeMarker +{ +public: + CAverageTimeMarker( CAverageCycleCounter *pCounter ); + ~CAverageTimeMarker(); + +private: + CAverageCycleCounter *m_pCounter; + CFastTimer m_Timer; +}; + + +// -------------------------------------------------------------------------- // +// CCycleCount inlines. +// -------------------------------------------------------------------------- // + +inline CCycleCount::CCycleCount() +{ + Init( (uint64)0 ); +} + +inline CCycleCount::CCycleCount( uint64 cycles ) +{ + Init( cycles ); +} + +inline void CCycleCount::Init() +{ + Init( (uint64)0 ); +} + +inline void CCycleCount::Init( float initTimeMsec ) +{ + if ( g_ClockSpeedMillisecondsMultiplier > 0 ) + Init( (uint64)(initTimeMsec / g_ClockSpeedMillisecondsMultiplier) ); + else + Init( (uint64)0 ); +} + +inline void CCycleCount::Init( uint64 cycles ) +{ + m_Int64 = cycles; +} + +inline void CCycleCount::Sample() +{ + m_Int64 = Plat_Rdtsc(); +} + +inline CCycleCount& CCycleCount::operator+=( CCycleCount const &other ) +{ + m_Int64 += other.m_Int64; + return *this; +} + + +inline void CCycleCount::Add( CCycleCount const &rSrc1, CCycleCount const &rSrc2, CCycleCount &dest ) +{ + dest.m_Int64 = rSrc1.m_Int64 + rSrc2.m_Int64; +} + +inline void CCycleCount::Sub( CCycleCount const &rSrc1, CCycleCount const &rSrc2, CCycleCount &dest ) +{ + dest.m_Int64 = rSrc1.m_Int64 - rSrc2.m_Int64; +} + +inline uint64 CCycleCount::GetTimestamp() +{ + CCycleCount c; + c.Sample(); + return c.GetLongCycles(); +} + +inline bool CCycleCount::IsLessThan(CCycleCount const &other) const +{ + return m_Int64 < other.m_Int64; +} + + +inline unsigned long CCycleCount::GetCycles() const +{ + return (unsigned long)m_Int64; +} + +inline uint64 CCycleCount::GetLongCycles() const +{ + return m_Int64; +} + +inline unsigned long CCycleCount::GetMicroseconds() const +{ + return (unsigned long)((m_Int64 * 1000000) / g_ClockSpeed); +} + +inline uint64 CCycleCount::GetUlMicroseconds() const +{ + return ((m_Int64 * 1000000) / g_ClockSpeed); +} + + +inline double CCycleCount::GetMicrosecondsF() const +{ + return (double)( m_Int64 * g_ClockSpeedMicrosecondsMultiplier ); +} + + +inline void CCycleCount::SetMicroseconds( unsigned long nMicroseconds ) +{ + m_Int64 = ((uint64)nMicroseconds * g_ClockSpeed) / 1000000; +} + + +inline unsigned long CCycleCount::GetMilliseconds() const +{ + return (unsigned long)((m_Int64 * 1000) / g_ClockSpeed); +} + + +inline double CCycleCount::GetMillisecondsF() const +{ + return (double)( m_Int64 * g_ClockSpeedMillisecondsMultiplier ); +} + + +inline double CCycleCount::GetSeconds() const +{ + return (double)( m_Int64 * g_ClockSpeedSecondsMultiplier ); +} + + +// -------------------------------------------------------------------------- // +// CFastTimer inlines. +// -------------------------------------------------------------------------- // +inline void CFastTimer::Start() +{ + m_Duration.Sample(); +#ifdef DEBUG_FASTTIMER + m_bRunning = true; +#endif +} + + +inline void CFastTimer::End() +{ + CCycleCount cnt; + cnt.Sample(); + if ( IsX360() ) + { + // have to handle rollover, hires timer is only accurate to 32 bits + // more than one overflow should not have occurred, otherwise caller should use a slower timer + if ( (uint64)cnt.m_Int64 <= (uint64)m_Duration.m_Int64 ) + { + // rollover occurred + cnt.m_Int64 += 0x100000000LL; + } + } + + m_Duration.m_Int64 = cnt.m_Int64 - m_Duration.m_Int64; + +#ifdef DEBUG_FASTTIMER + m_bRunning = false; +#endif +} + +inline CCycleCount CFastTimer::GetDurationInProgress() const +{ + CCycleCount cnt; + cnt.Sample(); + if ( IsX360() ) + { + // have to handle rollover, hires timer is only accurate to 32 bits + // more than one overflow should not have occurred, otherwise caller should use a slower timer + if ( (uint64)cnt.m_Int64 <= (uint64)m_Duration.m_Int64 ) + { + // rollover occurred + cnt.m_Int64 += 0x100000000LL; + } + } + + CCycleCount result; + result.m_Int64 = cnt.m_Int64 - m_Duration.m_Int64; + + return result; +} + + +inline int64 CFastTimer::GetClockSpeed() +{ + return g_ClockSpeed; +} + + +inline CCycleCount const& CFastTimer::GetDuration() const +{ +#ifdef DEBUG_FASTTIMER + assert( !m_bRunning ); +#endif + return m_Duration; +} + + +// -------------------------------------------------------------------------- // +// CAverageCycleCounter inlines + +inline CAverageCycleCounter::CAverageCycleCounter() + : m_nIters( 0 ) +{ +} + +inline void CAverageCycleCounter::Init() +{ + m_Total.Init(); + m_Peak.Init(); + m_nIters = 0; +} + +inline void CAverageCycleCounter::MarkIter( const CCycleCount &duration ) +{ + ++m_nIters; + m_Total += duration; + if ( m_Peak.IsLessThan( duration ) ) + m_Peak = duration; +} + +inline unsigned CAverageCycleCounter::GetIters() const +{ + return m_nIters; +} + +inline double CAverageCycleCounter::GetAverageMilliseconds() const +{ + if ( m_nIters ) + return (m_Total.GetMillisecondsF() / (double)m_nIters); + else + return 0; +} + +inline double CAverageCycleCounter::GetTotalMilliseconds() const +{ + return m_Total.GetMillisecondsF(); +} + +inline double CAverageCycleCounter::GetPeakMilliseconds() const +{ + return m_Peak.GetMillisecondsF(); +} + +// -------------------------------------------------------------------------- // + +inline CAverageTimeMarker::CAverageTimeMarker( CAverageCycleCounter *pCounter ) +{ + m_pCounter = pCounter; + m_Timer.Start(); +} + +inline CAverageTimeMarker::~CAverageTimeMarker() +{ + m_Timer.End(); + m_pCounter->MarkIter( m_Timer.GetDuration() ); +} + + +// CLimitTimer +// Use this to time whether a desired interval of time has passed. It's extremely fast +// to check while running. NOTE: CMicroSecOverage() and CMicroSecLeft() are not as fast to check. +class CLimitTimer +{ +public: + CLimitTimer() {} + CLimitTimer( uint64 cMicroSecDuration ) { SetLimit( cMicroSecDuration ); } + void SetLimit( uint64 m_cMicroSecDuration ); + bool BLimitReached(); + + int CMicroSecOverage(); + uint64 CMicroSecLeft(); + +private: + uint64 m_lCycleLimit; +}; + + +//----------------------------------------------------------------------------- +// Purpose: Initializes the limit timer with a period of time to measure. +// Input : cMicroSecDuration - How long a time period to measure +//----------------------------------------------------------------------------- +inline void CLimitTimer::SetLimit( uint64 cMicroSecDuration ) +{ + uint64 dlCycles = ( ( uint64 ) cMicroSecDuration * g_ClockSpeed ) / ( uint64 ) 1000000L; + CCycleCount cycleCount; + cycleCount.Sample( ); + m_lCycleLimit = cycleCount.GetLongCycles( ) + dlCycles; +} + + +//----------------------------------------------------------------------------- +// Purpose: Determines whether our specified time period has passed +// Output: true if at least the specified time period has passed +//----------------------------------------------------------------------------- +inline bool CLimitTimer::BLimitReached( ) +{ + CCycleCount cycleCount; + cycleCount.Sample( ); + return ( cycleCount.GetLongCycles( ) >= m_lCycleLimit ); +} + + +//----------------------------------------------------------------------------- +// Purpose: If we're over our specified time period, return the amount of the overage. +// Output: # of microseconds since we reached our specified time period. +//----------------------------------------------------------------------------- +inline int CLimitTimer::CMicroSecOverage() +{ + CCycleCount cycleCount; + cycleCount.Sample(); + uint64 lcCycles = cycleCount.GetLongCycles(); + + if ( lcCycles < m_lCycleLimit ) + return 0; + + return( ( int ) ( ( lcCycles - m_lCycleLimit ) * ( uint64 ) 1000000L / g_ClockSpeed ) ); +} + + +//----------------------------------------------------------------------------- +// Purpose: If we're under our specified time period, return the amount under. +// Output: # of microseconds until we reached our specified time period, 0 if we've passed it +//----------------------------------------------------------------------------- +inline uint64 CLimitTimer::CMicroSecLeft() +{ + CCycleCount cycleCount; + cycleCount.Sample(); + uint64 lcCycles = cycleCount.GetLongCycles(); + + if ( lcCycles >= m_lCycleLimit ) + return 0; + + return( ( uint64 ) ( ( m_lCycleLimit - lcCycles ) * ( uint64 ) 1000000L / g_ClockSpeed ) ); +} + + +#endif // FASTTIMER_H |