/****************************************************************************************
 * Class: sndbuf_smart
 *
 * Purpose: Extend sndbuf with the capability to do filtering and find incidence angles
 *
 * Author: Luke Scharf (lscharf@vt.edu)
 *
 * History:
 *	06-28-2000: Start work.
 ***************************************************************************************/

/*******************************
 * Multiple Include Protection
 * *****************************/
#ifndef _SNDBUF_SMART_H_
#define _SNDBUF_SMART_H_


/************
 * Includes
 * *********/
#include "sndbuf_config.h"
#include "sndbuf.h"


/************
 * Defines
 * *********/
#define ALL_CHAN	-1	//A flag meaning "all relevant channels"


/***********************
 * Class: sndbuf_smart
 * ********************/
class sndbuf_smart : public sndbuf
{
  //-- Structors --
  public:
	sndbuf_smart(int new_chan_max, int new_samp_max);
	~sndbuf_smart();

	
  //-- Sound Generation Methods --
  public:
	void gen_tone(int my_chan, float freq);
	void gen_noise(int my_chan);


  //-- DSP/Analysis Methods --
  public:
	void fir(sndbuf& pat, int pat_chan=0);
	void fir(int src_chan, int dst_chan, sndbuf& pat, int pat_chan);

	int q_min(int chan);
	int q_max(int chan);
	int min(int chan);
	int max(int chan);

	inline int  zero_dn(int my_chan);
	inline int  zero_dn(int my_chan, int start, int finish);
	inline int  zero_dn_avg(int my_chan, int wl);

	inline int  zero_up(int my_chan);
	inline int  zero_up(int my_chan, int start, int finish);

	int  q_phase_dist(int c0, int c1, int wl);
	int  phase_dist(int c0, int c1, int wl);
	double incidence_quick(int c0, int c1, int wl, int dist);

  private:
	void convolution(BUF_TYPE* dat, int dat_cnt, BUF_TYPE* pat, int pat_cnt, BUF_TYPE* dest, int dest_cnt);
	int max(BUF_TYPE* buf, int buf_cnt);
	int min(BUF_TYPE* buf, int buf_cnt);

};


/*******************************
 * Multiple Include Protection
 * *****************************/
#endif