4b665fa82b
URDF import demo: add COLLADA .dae file support add FiniteElementMethod demo, extracted from the OpenTissue library (under the zlib license) don't crash if loading an invalid STL file add comparison with Assimp for COLLADA file loading (disabled by default, to avoid library dependency) Gwen: disable some flags that make the build incompatible
103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
#ifndef OPENTISSUE_UTILITY_UTILITY_TIMER_H
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#define OPENTISSUE_UTILITY_UTILITY_TIMER_H
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//
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// OpenTissue Template Library
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// - A generic toolbox for physics-based modeling and simulation.
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// Copyright (C) 2008 Department of Computer Science, University of Copenhagen.
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//
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// OTTL is licensed under zlib: http://opensource.org/licenses/zlib-license.php
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//
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#include <OpenTissue/configuration.h>
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#ifdef WIN32
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# define NOMINMAX
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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# undef WIN32_LEAN_AND_MEAN
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# undef NOMINMAX
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#else
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# include<sys/time.h>
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#endif
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#include <cassert>
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namespace OpenTissue
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{
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namespace utility
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{
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/**
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* High Resoultion Timer.
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* Based on http://www-106.ibm.com/developerworks/library/l-rt1/
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*
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* RunTime: High-performance programming techniques on Linux and Windows 2000
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* Setting up timing routines
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* by
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* Edward G. Bradford (egb@us.ibm.com)
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* Senior Programmer, IBM
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* 01 Apr 2001
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*
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* Example usage (We recommand doubles):
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*
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* Timer<double> timer;
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*
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* timer.start()
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* ...
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* timer.stop()
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* std::cout << "It took " << timer() << " seconds to do it" << std::endl;
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*/
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template<typename real_type>
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class Timer
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{
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#ifdef WIN32
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private:
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LARGE_INTEGER m_start; ///<
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LARGE_INTEGER m_end; ///<
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LARGE_INTEGER m_freq; ///<
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bool m_first; ///<
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public:
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Timer():m_first(true){}
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public:
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void start()
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{
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if(m_first)
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{
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QueryPerformanceFrequency(&m_freq);
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m_first = false;
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}
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QueryPerformanceCounter(&m_start);
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}
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void stop()
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{
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QueryPerformanceCounter(&m_end);
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}
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real_type operator()()const
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{
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real_type end = static_cast<real_type>(m_end.QuadPart);
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real_type start = static_cast<real_type>(m_start.QuadPart);
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real_type freq = static_cast<real_type>(m_freq.QuadPart);
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return (end - start)/ freq;
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}
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#else
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private:
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struct timeval m_start; ///<
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struct timeval m_end; ///<
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struct timezone m_tz; ///<
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public:
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void start() { gettimeofday(&m_start, &m_tz); }
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void stop() { gettimeofday(&m_end,&m_tz); }
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real_type operator()()const
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{
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real_type t1 = static_cast<real_type>(m_start.tv_sec) + static_cast<real_type>(m_start.tv_usec)/(1000*1000);
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real_type t2 = static_cast<real_type>(m_end.tv_sec) + static_cast<real_type>(m_end.tv_usec)/(1000*1000);
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return t2-t1;
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}
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#endif
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};
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} //End of namespace utility
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} //End of namespace OpenTissue
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// OPENTISSUE_UTILITY_UTILITY_TIMER_H
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#endif
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