133 lines
3.4 KiB
C
133 lines
3.4 KiB
C
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/*
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Copyright (c) 2013 Khaled Mammou - Advanced Micro Devices, Inc.
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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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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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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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#pragma once
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#ifndef O3DGC_TIMER_H
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#define O3DGC_TIMER_H
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#include "o3dgcCommon.h"
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#ifdef WIN32
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#include <windows.h>
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#elif __MACH__
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#include <mach/clock.h>
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#include <mach/mach.h>
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#else
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#include <time.h>
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#include <sys/time.h>
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#endif
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namespace o3dgc
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{
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#ifdef WIN32
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class Timer
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{
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public:
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Timer(void)
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{
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m_start.QuadPart = 0;
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m_stop.QuadPart = 0;
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QueryPerformanceFrequency( &m_freq ) ;
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};
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~Timer(void){};
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void Tic()
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{
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QueryPerformanceCounter(&m_start) ;
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}
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void Toc()
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{
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QueryPerformanceCounter(&m_stop);
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}
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double GetElapsedTime() // in ms
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{
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LARGE_INTEGER delta;
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delta.QuadPart = m_stop.QuadPart - m_start.QuadPart;
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return (1000.0 * delta.QuadPart) / (double)m_freq.QuadPart;
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}
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private:
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LARGE_INTEGER m_start;
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LARGE_INTEGER m_stop;
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LARGE_INTEGER m_freq;
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};
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#elif __MACH__
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class Timer
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{
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public:
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Timer(void)
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{
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memset(this, 0, sizeof(Timer));
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host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, & m_cclock);
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};
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~Timer(void)
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{
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mach_port_deallocate(mach_task_self(), m_cclock);
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};
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void Tic()
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{
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clock_get_time( m_cclock, &m_start);
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}
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void Toc()
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{
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clock_get_time( m_cclock, &m_stop);
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}
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double GetElapsedTime() // in ms
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{
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return 1000.0 * (m_stop.tv_sec - m_start.tv_sec + (1.0E-9) * (m_stop.tv_nsec - m_start.tv_nsec));
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}
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private:
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clock_serv_t m_cclock;
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mach_timespec_t m_start;
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mach_timespec_t m_stop;
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};
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#else
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class Timer
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{
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public:
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Timer(void)
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{
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memset(this, 0, sizeof(Timer));
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};
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~Timer(void){};
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void Tic()
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{
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clock_gettime(CLOCK_REALTIME, &m_start);
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}
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void Toc()
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{
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clock_gettime(CLOCK_REALTIME, &m_stop);
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}
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double GetElapsedTime() // in ms
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{
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return 1000.0 * (m_stop.tv_sec - m_start.tv_sec + (1.0E-9) * (m_stop.tv_nsec - m_start.tv_nsec));
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}
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private:
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struct timespec m_start;
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struct timespec m_stop;
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};
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#endif
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}
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#endif // O3DGC_TIMER_H
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