mirror of https://github.com/TTimo/GtkRadiant.git
104 lines
2.5 KiB
C++
104 lines
2.5 KiB
C++
/*
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Copyright (C) 2001-2006, William Joseph.
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All Rights Reserved.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#if !defined (INCLUDED_TIMER_H)
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#define INCLUDED_TIMER_H
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#if 1
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const int msec_per_sec = 1000;
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class MillisecondTime
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{
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unsigned int m_milliseconds;
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public:
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MillisecondTime(unsigned int milliseconds)
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: m_milliseconds(milliseconds)
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{
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}
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MillisecondTime()
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{
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}
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static MillisecondTime current();
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unsigned int milliseconds_since(const MillisecondTime& other) const
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{
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return m_milliseconds - other.m_milliseconds;
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}
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};
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template<typename tick_type>
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inline MillisecondTime time_from_ticks(tick_type tick_count, tick_type ticks_per_sec)
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{
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return MillisecondTime(static_cast<unsigned int>(tick_count / static_cast<double>(ticks_per_sec / msec_per_sec)));
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}
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#else
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const unsigned int usec_per_sec = 1000000;
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class MillisecondTime
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{
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unsigned int m_sec;
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unsigned int m_usec;
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public:
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MillisecondTime(unsigned int sec, unsigned int usec)
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: m_sec(sec), m_usec(usec)
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{
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}
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MillisecondTime()
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{
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}
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staticMillisecondTime current();
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unsigned int milliseconds_since(const MillisecondTime& other) const
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{
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return static_cast<unsigned int>((m_sec * static_cast<double>(usec_per_sec) + m_usec)
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- (other.m_sec * static_cast<double>(usec_per_sec) + other.m_usec)) / 1000;
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}
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};
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template<typename tick_type>
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inline MillisecondTime time_from_ticks(tick_type tick_count, tick_type ticks_per_sec)
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{
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return MillisecondTime(static_cast<unsigned int>(tick_count / ticks_per_sec),
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static_cast<unsigned int>((tick_count % ticks_per_sec) * (usec_per_sec / static_cast<double>(ticks_per_sec))));
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}
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#endif
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class Timer
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{
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MillisecondTime m_start;
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public:
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void start()
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{
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m_start = MillisecondTime::current();
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}
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unsigned int elapsed_msec()
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{
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return MillisecondTime::current().milliseconds_since(m_start);
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}
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};
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#endif
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