Initial checkin of Timer class.

library/polyvoxcore/include/PolyVoxCore/Impl/Timer.h

@@ -0,0 +1,64 @@
+/*******************************************************************************
+Copyright (c) 2005-20013 David Williams and Matthew Williams
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution. 	
+*******************************************************************************/
+
+#ifndef __PolyVox_Timer_H__
+#define __PolyVox_Timer_H__
+
+#include <cstdint>
+
+#ifdef _MSC_VER // Don't worry about the exact version, as long as this is defied.
+#include <Windows.h>
+#endif //_MSC_VER
+
+namespace PolyVox
+{
+#if defined(_MSC_VER)
+	class Timer
+	{
+	public:
+		Timer(bool bAutoStart = true);
+
+		void start(void);
+
+		float elapsedTimeInSeconds(void);
+		uint32_t elapsedTimeInMilliSeconds(void);
+
+	private:
+		double m_fPCFreq;
+		__int64 m_iStartTime;
+	};
+#else //_MSC_VER
+	class Timer
+	{
+	public:
+		Timer(bool bAutoStart = true);
+
+		void start(void);
+
+		float elapsedTimeInSeconds(void);
+		uint32_t elapsedTimeInMilliSeconds(void);
+	};
+#endif //_MSC_VER
+}
+
+#endif //__PolyVox_Timer_H__