119 lines
2.5 KiB
C++
119 lines
2.5 KiB
C++
/*
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Copyright (c) 2012 Advanced Micro Devices, Inc.
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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//Originally written by Takahiro Harada
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <sys/time.h>
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#endif
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namespace adl
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{
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class StopwatchHost : public StopwatchBase
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{
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public:
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__inline
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StopwatchHost();
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__inline
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void init( const Device* deviceData );
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__inline
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void start();
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__inline
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void split();
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__inline
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void stop();
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__inline
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float getMs(int index=0);
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__inline
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void getMs( float* times, int capacity );
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private:
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#ifdef _WIN32
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LARGE_INTEGER m_frequency;
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LARGE_INTEGER m_t[CAPACITY];
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#else
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struct timeval mStartTime;
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timeval m_t[CAPACITY];
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#endif
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};
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__inline
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StopwatchHost::StopwatchHost()
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: StopwatchBase()
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{
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}
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__inline
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void StopwatchHost::init( const Device* deviceData )
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{
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m_device = deviceData;
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#ifdef _WIN32
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QueryPerformanceFrequency( &m_frequency );
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#else
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gettimeofday(&mStartTime, 0);
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#endif
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}
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__inline
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void StopwatchHost::start()
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{
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m_idx = 0;
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#ifdef _WIN32
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QueryPerformanceCounter(&m_t[m_idx++]);
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#else
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gettimeofday(&m_t[m_idx++], 0);
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#endif
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}
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__inline
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void StopwatchHost::split()
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{
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#ifdef _WIN32
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QueryPerformanceCounter(&m_t[m_idx++]);
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#else
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gettimeofday(&m_t[m_idx++], 0);
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#endif
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}
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__inline
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void StopwatchHost::stop()
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{
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split();
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}
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__inline
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float StopwatchHost::getMs(int index)
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{
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#ifdef _WIN32
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return (float)(1000*(m_t[index+1].QuadPart - m_t[index].QuadPart))/m_frequency.QuadPart;
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#else
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return (m_t[index+1].tv_sec - m_t[index].tv_sec) * 1000 +
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(m_t[index+1].tv_usec - m_t[index].tv_usec) / 1000;
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#endif
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}
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__inline
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void StopwatchHost::getMs(float* times, int capacity)
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{
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for(int i=0; i<capacity; i++) times[i] = 0.f;
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for(int i=0; i<min(capacity, m_idx-1); i++)
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{
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times[i] = getMs(i);
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}
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}
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}; |