SingWave.h

#ifndef STK_SINGWAVE_H
#define STK_SINGWAVE_H
 
#include "FileLoop.h"
#include "Modulate.h"
#include "Envelope.h"
 
namespace stk {
 
/***************************************************/
/***************************************************/
 
class SingWave : public Generator
{
 public:
 
  SingWave( std::string fileName, bool raw = false );
 
  ~SingWave( void );
 
  void reset( void ) { wave_.reset(); lastFrame_[0] = 0.0; };
 
  void normalize( void ) { wave_.normalize(); };
 
  void normalize( StkFloat peak ) { wave_.normalize( peak ); };
 
  void setFrequency( StkFloat frequency );
 
  void setVibratoRate( StkFloat rate ) { modulator_.setVibratoRate( rate ); };
 
  void setVibratoGain( StkFloat gain ) { modulator_.setVibratoGain( gain ); };
 
  void setRandomGain( StkFloat gain ) { modulator_.setRandomGain( gain ); };
 
  void setSweepRate( StkFloat rate ) { sweepRate_ = rate; };
 
  void setGainRate( StkFloat rate ) { envelope_.setRate( rate ); };
 
  void setGainTarget( StkFloat target ) { envelope_.setTarget( target ); };
 
  void noteOn( void ) { envelope_.keyOn(); };
 
  void noteOff( void ) { envelope_.keyOff(); };
 
  StkFloat lastOut( void ) const { return lastFrame_[0]; };
 
  StkFloat tick( void );
 
 
  StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
 
 protected:
 
  FileLoop wave_;
  Modulate modulator_;
  Envelope envelope_;
  Envelope pitchEnvelope_;
  StkFloat rate_;
  StkFloat sweepRate_;
 
};
 
inline StkFloat SingWave :: tick( void )
{
  // Set the wave rate.
  StkFloat newRate = pitchEnvelope_.tick();
  newRate += newRate * modulator_.tick();
  wave_.setRate( newRate );
 
  lastFrame_[0] = wave_.tick();
  lastFrame_[0] *= envelope_.tick();
 
  return lastFrame_[0];
}
 
inline StkFrames& SingWave :: tick( StkFrames& frames, unsigned int channel )
{
#if defined(_STK_DEBUG_)
  if ( channel >= frames.channels() ) {
    oStream_ << "SingWave::tick(): channel and StkFrames arguments are incompatible!";
    handleError( StkError::FUNCTION_ARGUMENT );
  }
#endif
 
  StkFloat *samples = &frames[channel];
  unsigned int hop = frames.channels();
  for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
    *samples = SingWave::tick();
 
  return frames;
}
 
} // stk namespace
 
#endif