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/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
Copyright (c) 2013 Tim Blechmann
http://www.audiosynth.com
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "../../common/SC_Lock.h" // for chrono
#include "SC_Types.h"
const int32 kSECONDS_FROM_1900_to_1970 = (int32)2208988800UL; /* 17 leap years */
const double kOSCtoSecs = 2.328306436538696e-10;
const double kSecondsToOSCunits = 4294967296.; // pow(2,32)
const double kMicrosToOSCunits = 4294.967296; // pow(2,32)/1e6
const double kNanosToOSCunits = 4.294967296; // pow(2,32)/1e9
typedef std::chrono::system_clock::time_point HostTime;
static inline HostTime getTime() { return std::chrono::system_clock::now(); }
template <typename TimePoint> static inline double secondsSinceEpoch(TimePoint const& tp) {
return std::chrono::duration_cast<std::chrono::duration<double>>(tp.time_since_epoch()).count();
}
template <typename TimePoint> static inline int64 OSCTime(TimePoint const& tp) {
using namespace std::chrono;
typedef typename TimePoint::duration Duration;
Duration sinceEpoch = tp.time_since_epoch();
seconds secs = duration_cast<seconds>(sinceEpoch);
nanoseconds nsecs = sinceEpoch - secs;
return ((int64)(secs.count() + kSECONDS_FROM_1900_to_1970) << 32) + (int64)(nsecs.count() * kNanosToOSCunits);
}
static inline int32 timeSeed() {
using namespace std::chrono;
static int32 count = 0;
typedef high_resolution_clock::time_point TimePoint;
typedef TimePoint::duration Duration;
TimePoint now = high_resolution_clock::now();
Duration sinceEpoch = now.time_since_epoch();
seconds secs = duration_cast<seconds>(sinceEpoch);
nanoseconds nsecs = sinceEpoch - secs;
return (int32)secs.count() ^ (int32)nsecs.count() ^ count--;
}
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