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