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#include "UnityPrefix.h"
#include "TimeHelper.h"
#if UNITY_IPHONE || UNITY_OSX
#include <mach/mach_time.h>
static bool g_ProfileTimeInited = false;
static UInt64 g_Numer;
static UInt64 g_Denom;
static void InitTime()
{
if( !g_ProfileTimeInited )
{
mach_timebase_info_data_t timeInfo;
mach_timebase_info(&timeInfo);
g_Numer = timeInfo.numer;
g_Denom = timeInfo.denom;
g_ProfileTimeInited = true;
}
}
ProfileTimeFormat GetProfileTime(UInt64 elapsedTime)
{
InitTime();
return ( (elapsedTime*g_Numer) / g_Denom );
}
ABSOLUTE_TIME ProfileTimeToAbsoluteTime(ProfileTimeFormat elapsedTime)
{
InitTime();
return ( (elapsedTime*g_Denom) / g_Numer );
}
ABSOLUTE_TIME DivideAbsoluteTime(ABSOLUTE_TIME elapsedTime, int divisor)
{
return ProfileTimeToAbsoluteTime(GetProfileTime(elapsedTime) / (UInt64)divisor);
}
ABSOLUTE_TIME SubtractAbsoluteTimeClamp (ABSOLUTE_TIME lhs, ABSOLUTE_TIME rhs)
{
return (lhs < rhs) ? (ABSOLUTE_TIME)0 : lhs-rhs;
}
#elif UNITY_WIN | UNITY_XENON
// Timer granularity of QuertPerformanceCounters is that of frequency.
// Usually that is around 2M - resulting in a granularity of 500ns.
// This is not optimal for performance profiling
ABSOLUTE_TIME GetStartTime()
{
LARGE_INTEGER start;
QueryPerformanceCounter(&start);
return (UInt64) start.QuadPart;
}
ABSOLUTE_TIME GetElapsedTime(ABSOLUTE_TIME startTime)
{
LARGE_INTEGER end;
QueryPerformanceCounter(&end);
return (UInt64) end.QuadPart - startTime;
}
static bool s_HaveFrequency = false;
static LARGE_INTEGER s_Frequency;
ProfileTimeFormat GetProfileTime(ABSOLUTE_TIME elapsedTime)
{
if (!s_HaveFrequency)
{
QueryPerformanceFrequency (&s_Frequency);
s_HaveFrequency = true;
}
return (elapsedTime * 1000000000LL) / s_Frequency.QuadPart;
}
ABSOLUTE_TIME ProfileTimeToAbsoluteTime(ProfileTimeFormat elapsedTime)
{
if (!s_HaveFrequency)
{
QueryPerformanceFrequency (&s_Frequency);
s_HaveFrequency = true;
}
return (elapsedTime * s_Frequency.QuadPart) / 1000000000LL;
}
ABSOLUTE_TIME DivideAbsoluteTime(ABSOLUTE_TIME elapsedTime, int divisor)
{
return elapsedTime / (UInt64)divisor;
}
#elif UNITY_PS3
#include <sys/sys_time.h>
inline ProfileTimeFormat timebase_frequency()
{
static ProfileTimeFormat tf = sys_time_get_timebase_frequency();
return tf;
}
ProfileTimeFormat GetProfileTime(ABSOLUTE_TIME elapsedTime)
{
return (elapsedTime * 1000000000LL) / timebase_frequency() ;
}
ABSOLUTE_TIME ProfileTimeToAbsoluteTime(ProfileTimeFormat elapsedTime)
{
return (elapsedTime * timebase_frequency()) / 1000000000LL;
}
ABSOLUTE_TIME DivideAbsoluteTime(ABSOLUTE_TIME elapsedTime, int divisor)
{
return elapsedTime / (UInt64)divisor;
}
#elif UNITY_ANDROID || UNITY_PEPPER || UNITY_LINUX || UNITY_FLASH || UNITY_WEBGL || UNITY_BB10 || UNITY_TIZEN
ProfileTimeFormat GetProfileTime(ABSOLUTE_TIME elapsedTime)
{
return elapsedTime;
}
ABSOLUTE_TIME ProfileTimeToAbsoluteTime(ProfileTimeFormat elapsedTime)
{
return elapsedTime;
}
ABSOLUTE_TIME DivideAbsoluteTime(ABSOLUTE_TIME elapsedTime, int divisor)
{
return elapsedTime / (UInt64)divisor;
}
ABSOLUTE_TIME SubtractAbsoluteTimeClamp(ABSOLUTE_TIME lhs, ABSOLUTE_TIME rhs)
{
if (IsSmallerAbsoluteTime(lhs, rhs))
{
ABSOLUTE_TIME zero;
ABSOLUTE_TIME_INIT(zero);
return zero;
}
else
{
return lhs - rhs;
}
}
#elif UNITY_WII
ABSOLUTE_TIME GetStartTime()
{
// ToDo
return 0;
}
ABSOLUTE_TIME GetElapsedTime(ABSOLUTE_TIME startTime)
{
// ToDo:
return 0;
}
ProfileTimeFormat GetProfileTime(ABSOLUTE_TIME elapsedTime)
{
return OSTicksToNanoseconds (elapsedTime);
}
ABSOLUTE_TIME ProfileTimeToAbsoluteTime(ProfileTimeFormat elapsedTime)
{
return OSNanosecondsToTicks (elapsedTime);
}
ABSOLUTE_TIME DivideAbsoluteTime(ABSOLUTE_TIME elapsedTime, int divisor)
{
return elapsedTime / (UInt64)divisor;
}
#else
#error IMPLEMENT ME
#endif
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