WaveShaper.h

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//
//  WaveShaper.h -- CSL wave-shaping oscillator class that uses a look-up table
//
//  See the copyright notice and acknowledgment of authors in the file COPYRIGHT
//

#ifndef INCLUDE_WAVESHAPER_H
#define INCLUDE_WAVESHAPER_H

#include "Oscillator.h"     // my superclass

namespace csl {             // my namespace

///
/// WaveShaper -- Wave-shaping oscillator class
///

class WaveShaper : public Sine {
public:
    WaveShaper();
    WaveShaper(float frequency, unsigned sel = 0, unsigned size = CSL_mMaxBufferFrames);
    
    void setTableLength(unsigned length);   ///< set the size in bytes of the table.
    unsigned tableLength() { return mTableSize; };
    
    Buffer mTransferFunction;       ///< the wave-shaping look-up table (it's just a sample buffer)

    void nextBuffer(Buffer & outputBuffer, unsigned outBufNum) throw (CException);
    
protected:
    void initWaveTable(unsigned sel = 0);   ///< function to initialize the default shaping table
    
private:
    unsigned mTableSize;            ///< Table size in bytes.
    
};      // end of class spec.

}       // end of namespace

#endif