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43 lines
810 B
43 lines
810 B
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: |
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// |
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// $NoKeywords: $ |
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//=============================================================================// |
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#include <stdafx.h> |
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static double beginTime; |
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double I_FloatTime( void ) |
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{ |
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static double freq = 0.0; |
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static __int64 firstCount; |
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__int64 curCount; |
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if (freq == 0.0) |
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{ |
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__int64 perfFreq; |
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QueryPerformanceFrequency( (LARGE_INTEGER*)&perfFreq ); |
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QueryPerformanceCounter( (LARGE_INTEGER*)&firstCount ); |
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freq = 1.0 / (double)perfFreq; |
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} |
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QueryPerformanceCounter ( (LARGE_INTEGER*)&curCount ); |
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curCount -= firstCount; |
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double time = (double)curCount * freq; |
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return time; |
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} |
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void I_BeginTime( void ) |
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{ |
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beginTime = I_FloatTime(); |
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} |
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double I_EndTime( void ) |
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{ |
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return ( I_FloatTime() - beginTime ); |
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}
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