_timer.cpp

24位真彩色转256色,24位真彩色转256色

// _Timer.cpp: implementation of the C_Timer class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "bmpconverter.h"
#include "_Timer.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

C_Timer::C_Timer()
{
	m_lnStartTime.QuadPart = 0;
	m_lnEndTime.QuadPart = 0;
	QueryPerformanceFrequency(&m_lnFreq);

	m_bBoot = FALSE ;
}

C_Timer::~C_Timer()
{

}

void C_Timer::Boot()
{
	m_bBoot = TRUE ;
	QueryPerformanceCounter(&m_lnStartTime);
}

void C_Timer::Stop()
{
	m_bBoot = FALSE ;
	QueryPerformanceCounter(&m_lnEndTime);
}

double C_Timer::GetTime()
{
	if(m_bBoot == TRUE) return 0 ;

	return (m_lnEndTime.QuadPart - m_lnStartTime.QuadPart) * 1.0 / m_lnFreq.QuadPart * 1000 ;
}