| /* |
| Copyright (c) 2013 Khaled Mammou - Advanced Micro Devices, Inc. |
| |
| Permission is hereby granted, free of charge, to any person obtaining a copy |
| of this software and associated documentation files (the "Software"), to deal |
| in the Software without restriction, including without limitation the rights |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| copies of the Software, and to permit persons to whom the Software is |
| furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included in |
| all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| THE SOFTWARE. |
| */ |
| |
| #pragma once |
| #ifndef O3DGC_TIMER_H |
| #define O3DGC_TIMER_H |
| |
| #include "o3dgcCommon.h" |
| |
| #ifdef _WIN32 |
| /* Thank you, Microsoft, for file WinDef.h with min/max redefinition. */ |
| #define NOMINMAX |
| #include <windows.h> |
| #elif __MACH__ |
| #include <mach/clock.h> |
| #include <mach/mach.h> |
| #else |
| #include <time.h> |
| #include <sys/time.h> |
| #endif |
| |
| |
| |
| namespace o3dgc |
| { |
| #ifdef _WIN32 |
| class Timer |
| { |
| public: |
| Timer(void) |
| { |
| m_start.QuadPart = 0; |
| m_stop.QuadPart = 0; |
| QueryPerformanceFrequency( &m_freq ) ; |
| }; |
| ~Timer(void){}; |
| void Tic() |
| { |
| QueryPerformanceCounter(&m_start) ; |
| } |
| void Toc() |
| { |
| QueryPerformanceCounter(&m_stop); |
| } |
| double GetElapsedTime() // in ms |
| { |
| LARGE_INTEGER delta; |
| delta.QuadPart = m_stop.QuadPart - m_start.QuadPart; |
| return (1000.0 * delta.QuadPart) / (double)m_freq.QuadPart; |
| } |
| private: |
| LARGE_INTEGER m_start; |
| LARGE_INTEGER m_stop; |
| LARGE_INTEGER m_freq; |
| |
| }; |
| #elif __MACH__ |
| class Timer |
| { |
| public: |
| Timer(void) |
| { |
| memset(this, 0, sizeof(Timer)); |
| host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, & m_cclock); |
| }; |
| ~Timer(void) |
| { |
| mach_port_deallocate(mach_task_self(), m_cclock); |
| }; |
| void Tic() |
| { |
| clock_get_time( m_cclock, &m_start); |
| } |
| void Toc() |
| { |
| clock_get_time( m_cclock, &m_stop); |
| } |
| double GetElapsedTime() // in ms |
| { |
| return 1000.0 * (m_stop.tv_sec - m_start.tv_sec + (1.0E-9) * (m_stop.tv_nsec - m_start.tv_nsec)); |
| } |
| private: |
| clock_serv_t m_cclock; |
| mach_timespec_t m_start; |
| mach_timespec_t m_stop; |
| }; |
| #else |
| class Timer |
| { |
| public: |
| Timer(void) |
| { |
| memset(this, 0, sizeof(Timer)); |
| }; |
| ~Timer(void){}; |
| void Tic() |
| { |
| clock_gettime(CLOCK_REALTIME, &m_start); |
| } |
| void Toc() |
| { |
| clock_gettime(CLOCK_REALTIME, &m_stop); |
| } |
| double GetElapsedTime() // in ms |
| { |
| return 1000.0 * (m_stop.tv_sec - m_start.tv_sec + (1.0E-9) * (m_stop.tv_nsec - m_start.tv_nsec)); |
| } |
| private: |
| struct timespec m_start; |
| struct timespec m_stop; |
| }; |
| #endif |
| |
| } |
| #endif // O3DGC_TIMER_H |