DelayLine.h

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//
// DelayLine.h -- an Interpolating Delay Line
//  See the copyright notice and acknowledgment of authors in the file COPYRIGHT
//
// This is a typical circular buffer with one writer and multiple readers (tap instances)

#ifndef CSL_DelayLine_H
#define CSL_DelayLine_H

#include "CSL_Core.h"
#include "RingBuffer.h"

namespace csl {

// The delay line takes its input and write a delayed output
class DelayLine : public UnitGenerator, public Effect {
public:
    DelayLine(unsigned maxDelayInSamples);

    float delayTime();
    unsigned delayLength();
    
    float setDelayTime(float delayInMiliseconds);   
    unsigned setDelayLength(unsigned delayInSamples);
//  void setInterpolationKind();
    
    void nextBuffer(Buffer &output) throw(CException);

protected:
    RingBuffer mRingBuffer;
    unsigned mMaxDelayInSamples;
    unsigned mTotalDelayInSamples;

};

}

#endif

//typedef enum {
//  kTruncate,
//  kLinear,
//  kAllPass
//} InterpType;
//
//class DLine : public FrameStream, public Processor {
//
//private:  
//  Buffer ring_buffer;
//
//  float max_delay_time;
//  float delay_time;
//  float target_delay_time;
//  unsigned max_delay_in_frames;
//  InterpType interp_type;
//  unsigned start_frame;
////    unsigned end_frame;
//  unsigned write_frame;
//
//public:
//  DLine( FrameStream &input, float max_delay );
//  ~DLine();
//
//  bool set_target_delay_time( float tdt );
//  bool init_delay_time( float dt );
//  bool set_interp_type( InterpType );
////    update_write_frame( unsigned how_many_frames);
//
//  status mono_next_buffer(Buffer & inputBuffer, Buffer & outputBuffer, unsigned inBufNum, unsigned outBufNum);
//  status next_buffer(Buffer & inputBuffer, Buffer & outputBuffer);
//  
//};