/* RTcmix - Copyright (C) 2004  The RTcmix Development Team   See ``AUTHORS'' for a list of contributors. See ``LICENSE'' for   the license to this software and for a DISCLAIMER OF ALL WARRANTIES.*/#include "Ocomb.h"#include "Odelay.h" #include <math.h>#include <assert.h> Ocomb::Ocomb(float SR, float loopTime, float reverbTime)	: _delay(0), _sr(SR), _lastout(0.0){	init(loopTime,		 loopTime,		 reverbTime,		 new Odelay(1 + (long) (loopTime * _sr + 0.5)));} Ocomb::Ocomb(float SR, float loopTime, float defaultLoopTime,			 float reverbTime, Odelay *theDelay)	: _delay(0), _sr(SR), _lastout(0.0){	init(loopTime,		 defaultLoopTime,		 reverbTime, 		 theDelay ? theDelay : new Odelay(1 + (long) (defaultLoopTime * _sr + 0.5)));} void Ocomb::init(float loopTime, float defaultLoopTime, float reverbTime, Odelay *delay){	assert(defaultLoopTime > 0.0);	assert(defaultLoopTime >= loopTime);	_delay = delay;	_delsamps = loopTime * _sr;	_delay->setdelay(_delsamps);	setReverbTime(reverbTime);} Ocomb::~Ocomb(){	delete _delay;} void Ocomb::clear(){	_delay->clear();	_lastout = 0.0;}; void Ocomb::setReverbTime(float reverbTime){	assert(reverbTime > 0.0);	_gain = pow(0.001f, (float)((_delsamps / _sr) / reverbTime));} float Ocomb::next(float input){	float tmp = input + (_gain * _delay->last());	_lastout = _delay->next(tmp);	return _lastout;} float Ocomb::next(float input, float delaySamps){	if (delaySamps != _delsamps) {		_delsamps = delaySamps;		_delay->setdelay(_delsamps);	}	float tmp = input + (_gain * _delay->last());	_lastout = _delay->next(tmp);	return _lastout;} float Ocomb::frequency() const{	float delay = _delay->delay();	return (delay > 0.0f) ? _sr / delay : 0.0f;}