2 Copyright (C) 2001-2006, William Joseph.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #if !defined (INCLUDED_TIMER_H)
23 #define INCLUDED_TIMER_H
27 const int msec_per_sec = 1000;
31 unsigned int m_milliseconds;
33 MillisecondTime(unsigned int milliseconds)
34 : m_milliseconds(milliseconds)
40 static MillisecondTime current();
42 unsigned int milliseconds_since(const MillisecondTime& other) const
44 return m_milliseconds - other.m_milliseconds;
48 template<typename tick_type>
49 inline MillisecondTime time_from_ticks(tick_type tick_count, tick_type ticks_per_sec)
51 return MillisecondTime(static_cast<unsigned int>(tick_count / static_cast<double>(ticks_per_sec / msec_per_sec)));
56 const unsigned int usec_per_sec = 1000000;
63 MillisecondTime(unsigned int sec, unsigned int usec)
64 : m_sec(sec), m_usec(usec)
70 staticMillisecondTime current();
72 unsigned int milliseconds_since(const MillisecondTime& other) const
74 return static_cast<unsigned int>((m_sec * static_cast<double>(usec_per_sec) + m_usec)
75 - (other.m_sec * static_cast<double>(usec_per_sec) + other.m_usec)) / 1000;
79 template<typename tick_type>
80 inline MillisecondTime time_from_ticks(tick_type tick_count, tick_type ticks_per_sec)
82 return MillisecondTime(static_cast<unsigned int>(tick_count / ticks_per_sec),
83 static_cast<unsigned int>((tick_count % ticks_per_sec) * (usec_per_sec / static_cast<double>(ticks_per_sec))));
90 MillisecondTime m_start;
95 m_start = MillisecondTime::current();
97 unsigned int elapsed_msec()
99 return MillisecondTime::current().milliseconds_since(m_start);