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61 lines
1.1 KiB
C++
61 lines
1.1 KiB
C++
// This code is in the public domain -- castano@gmail.com
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#ifndef NV_CORE_TIMER_H
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#define NV_CORE_TIMER_H
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#include <nvcore/nvcore.h>
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#if 1
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#include <time.h> //clock
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class NVCORE_CLASS Timer
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{
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public:
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Timer() {}
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void start() { m_start = clock(); }
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void stop() { m_stop = clock(); }
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float elapsed() const { return float(m_stop - m_start) / CLOCKS_PER_SEC; }
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private:
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clock_t m_start;
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clock_t m_stop;
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};
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#else
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#define WINDOWS_LEAN_AND_MEAN
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#define VC_EXTRALEAN
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#define NOMINMAX
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#include <windows.h>
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class NVCORE_CLASS Timer
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{
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public:
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Timer() {
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// get the tick frequency from the OS
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QueryPerformanceFrequency((LARGE_INTEGER*) &m_frequency);
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}
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void start() { QueryPerformanceCounter((LARGE_INTEGER*) &m_start); }
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void stop() { QueryPerformanceCounter((LARGE_INTEGER*) &m_stop); }
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int elapsed() const {
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return (int)1000 * ((double)m_stop.QuadPart - (double)m_start.QuadPart) / (double)m_frequency.QuadPart;
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}
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private:
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LARGE_INTEGER m_frequency;
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LARGE_INTEGER m_start;
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LARGE_INTEGER m_stop;
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};
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#endif // 0
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#endif // NV_CORE_TIMER_H
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