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+/*
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+-----------------------------------------------------------------------------
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+This source file is part of OGRE
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+ (Object-oriented Graphics Rendering Engine)
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+For the latest info, see http://www.ogre3d.org/
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+
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+Copyright (c) 2000-2011 Torus Knot Software Ltd
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+
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+Permission is hereby granted, free of charge, to any person obtaining a copy
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+of this software and associated documentation files (the "Software"), to deal
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+in the Software without restriction, including without limitation the rights
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+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+copies of the Software, and to permit persons to whom the Software is
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+furnished to do so, subject to the following conditions:
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+
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+The above copyright notice and this permission notice shall be included in
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+all copies or substantial portions of the Software.
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+
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+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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+THE SOFTWARE.
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+-----------------------------------------------------------------------------
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+*/
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+#ifndef __Win32Timer_H__
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+#define __Win32Timer_H__
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+
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+#include "../CmPrerequisitesUtil.h"
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+
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+#ifndef WIN32_LEAN_AND_MEAN
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+# define WIN32_LEAN_AND_MEAN
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+#endif
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+#if !defined(NOMINMAX) && defined(_MSC_VER)
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+# define NOMINMAX // required to stop windows.h messing up std::min
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+#endif
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+#include "windows.h"
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+
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+namespace CamelotEngine
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+{
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+ /** \addtogroup Core
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+ * @{
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+ */
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+ /** \addtogroup General
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+ * @{
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+ */
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+
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+ class CM_UTILITY_EXPORT Timer
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+ {
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+ private:
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+ clock_t mZeroClock;
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+
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+ DWORD mStartTick;
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+ LONGLONG mLastTime;
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+ LARGE_INTEGER mStartTime;
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+ LARGE_INTEGER mFrequency;
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+
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+ DWORD_PTR mTimerMask;
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+ public:
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+ /** Timer constructor. MUST be called on same thread that calls getMilliseconds() */
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+ Timer();
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+ ~Timer();
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+
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+ /** Method for setting a specific option of the Timer. These options are usually
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+ specific for a certain implementation of the Timer class, and may (and probably
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+ will) not exist across different implementations. reset() must be called after
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+ all setOption() calls.
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+ @par
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+ Current options supported are:
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+ <ul><li>"QueryAffinityMask" (DWORD): Set the thread affinity mask to be used
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+ to check the timer. If 'reset' has been called already this mask should
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+ overlap with the process mask that was in force at that point, and should
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+ be a power of two (a single core).</li></ul>
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+ @param
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+ strKey The name of the option to set
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+ @param
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+ pValue A pointer to the value - the size should be calculated by the timer
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+ based on the key
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+ @return
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+ On success, true is returned.
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+ @par
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+ On failure, false is returned.
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+ */
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+ bool setOption( const String& strKey, const void* pValue );
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+
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+ /** Resets timer */
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+ void reset();
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+
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+ /** Returns milliseconds since initialisation or last reset */
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+ unsigned long getMilliseconds();
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+
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+ /** Returns microseconds since initialisation or last reset */
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+ unsigned long getMicroseconds();
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+
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+ /** Returns milliseconds since initialisation or last reset, only CPU time measured */
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+ unsigned long getMillisecondsCPU();
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+
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+ /** Returns microseconds since initialisation or last reset, only CPU time measured */
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+ unsigned long getMicrosecondsCPU();
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+ };
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+ /** @} */
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+ /** @} */
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+}
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+#endif
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