Moved all headers from 'PolyVoxCore' to 'PolyVox', as we no longer have the core/util distinction.

include/PolyVox/Impl/Timer.h

@@ -0,0 +1,73 @@
+/*******************************************************************************
+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>
+
+#include <chrono>
+
+namespace PolyVox
+{
+	class Timer
+	{
+	public:
+		Timer(bool bAutoStart = true)
+		{
+			if (bAutoStart)
+			{
+				start();
+			}
+		}
+		
+		void start(void)
+		{
+			m_start = clock::now();
+		}
+		
+		float elapsedTimeInSeconds(void)
+		{
+			std::chrono::duration<float> elapsed_seconds = clock::now() - m_start;
+			return elapsed_seconds.count();
+		}
+
+		uint32_t elapsedTimeInMilliSeconds(void)
+		{
+			std::chrono::duration<float, std::milli> elapsed_milliseconds = clock::now() - m_start;
+			return elapsed_milliseconds.count();
+		}
+
+		uint32_t elapsedTimeInMicroSeconds(void)
+		{
+			std::chrono::duration<float, std::micro> elapsed_microseconds = clock::now() - m_start;
+			return elapsed_microseconds.count();
+		}
+		
+	private:
+		typedef std::chrono::system_clock clock;
+		std::chrono::time_point<clock> m_start;
+	};
+}
+
+#endif //__PolyVox_Timer_H__