/* Stop the process of time measure and obtain the sampling time in seconds */
Ipp64f vm_time_stop(vm_time_handle handle, vm_time *m)
{
Ipp64f speed_sec;
Ipp64s end;
Ipp32s freq_mhz;
if (handle > 0) {
Ipp32u startHigh, startLow;
startLow = ioctl(handle, GET_TSC_LOW, 0);
startHigh = ioctl(handle, GET_TSC_HIGH, 0);
end = ((Ipp64u)startHigh << 32) + (Ipp64u)startLow;
}
else {
end = vm_time_get_tick();
}
m->diff += (end - m->start);
if (handle > 0) {
if((m->freq == 0) || (m->freq == VM_TIME_MHZ)) {
ippGetCpuFreqMhz(&freq_mhz);
m->freq = (Ipp64s)freq_mhz;
}
speed_sec = (Ipp64f)m->diff/1000000.0/(Ipp64f)m->freq;
} else {
if(m->freq == 0) m->freq = vm_time_get_frequency();
speed_sec = (Ipp64f)m->diff/(Ipp64f)m->freq;
}
return speed_sec;
} /* Ipp64f vm_time_stop(vm_time_handle handle, vm_time *m) */
void CTimer::Init(void)
{
#ifdef _WIN32
QueryPerformanceFrequency(&m_freq);
#else
if(m_ifreq == 0)
ippGetCpuFreqMhz(&m_ifreq);
#endif
return;
} // CTimer::Init()
