Oscillator.h

#ifndef INCLUDE_OSCILLATOR_H
#define INCLUDE_OSCILLATOR_H
/*
 * This is the Loris C++ Class Library, implementing analysis, 
 * manipulation, and synthesis of digitized sounds using the Reassigned 
 * Bandwidth-Enhanced Additive Sound Model.
 *
 * Loris is Copyright (c) 1999-2007 by Kelly Fitz and Lippold Haken
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *
 * Oscillator.h
 *
 * Definition of class Loris::Oscillator, a Bandwidth-Enhanced Oscillator.
 *
 * Kelly Fitz, 31 Aug 1999
 * loris@cerlsoundgroup.org
 *
 * http://www.cerlsoundgroup.org/Loris/
 *
 */

#include "NoiseGenerator.h"

//  begin namespace
namespace Loris {

class Breakpoint;

// ---------------------------------------------------------------------------
//  class Oscillator
//
//
class Oscillator
{
//  --- implementation ---

    NoiseGenerator bwModulator; 
    
    //  instantaneous oscillator state:
    double i_frequency;         
    double i_amplitude;         
    double i_bandwidth;         
    
    //  accumulating phase state:
    double determ_phase;        

//  --- interface ---
public:
//  --- construction ---

    Oscillator( void );
     
    //  Copy, assignment, and destruction are free.
    //
    //  Copied and assigned Oscillators have the duplicate state
    //  variables and the filters have the same coefficients,
    //  but the state of the filter delay lines is not copied.

// --- oscillation ---
     
    void resetEnvelopes( const Breakpoint & bp, double srate );
      
    void resetPhase( double ph );

    void oscillate( double * begin, double * end,
                    const Breakpoint & bp, double srate );

// --- accessors ---

    double amplitude( void ) const { return i_amplitude; }
    
    double bandwidth( void ) const { return i_bandwidth; }
    
    double phase( void ) const { return determ_phase; }
    
    double radianFreq( void ) const { return i_frequency; }
     
};  //  end of class Oscillator

}   //  end of namespace Loris

#endif /* ndef INCLUDE_OSCILLATOR_H */

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