1 files changed, 190 insertions, 0 deletions
diff --git a/Runtime/Profiler/TimeHelper.cpp b/Runtime/Profiler/TimeHelper.cpp
new file mode 100644
index 0000000..1f78f4a
--- /dev/null
+++ b/Runtime/Profiler/TimeHelper.cpp
@@ -0,0 +1,190 @@
+#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
+\ No newline at end of file