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// Copyright (c) 2015-2015 Josh Blum
// SPDX-License-Identifier: BSL-1.0
#include <SoapySDR/Time.h>
#include <cmath>
extern "C" {
#if defined(_MSC_VER) && (_MSC_VER < 1800)
static inline long long int llround(const double x)
{
return (long long int)((x < (0.0)) ? (x - (0.5)) : (x + (0.5)));
}
#endif
long long SoapySDR_ticksToTimeNs(const long long ticks, const double rate)
{
const long long ratell = (long long)(rate);
const long long full = (long long)(ticks/ratell);
const long long err = ticks - (full*ratell);
const double part = full*(rate - ratell);
const double frac = ((err - part)*1000000000)/rate;
return (full*1000000000) + llround(frac);
}
long long SoapySDR_timeNsToTicks(const long long timeNs, const double rate)
{
const long long ratell = (long long)(rate);
const long long full = (long long)(timeNs/1000000000);
const long long err = timeNs - (full*1000000000);
const double part = full*(rate - ratell);
const double frac = part + ((err*rate)/1000000000);
return (full*ratell) + llround(frac);
}
}
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