/****************************************************************************************
 * Class: sndbuf
 *
 * Purpose: hold several channels of sound buffer data
 *
 * Author: Luke Scharf (lscharf@vt.edu)
 *
 * History:
 *	05-25-2000: Start work.
 ***************************************************************************************/

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

/************
 * Includes
 * *********/
#include <sys/ioctl.h>
#include <sys/soundcard.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#include <string.h>
#include <assert.h>
#include "sndbuf_config.h"


/*****************
 * Class: sndbuf
 * **************/
class sndbuf
{
  //-- Data --
  private:
	int		audio_fd;	//File descriptor

	BUF_TYPE**	buf;		//The buffer we'll allocate
	int		chan_max;	//The the number of channels we'll allocate
	int		samp_max;	//The number of samples we'll allocate

  public:
	int		chan;		//The number of channels we're using
	int 		samp;		//The number of samples we're using


  //-- Structors --
  public:
	sndbuf(int new_chan_max, int new_samp_max);
	~sndbuf();

  //-- Info Methods --
  public:
	int get_chan_max(){return chan_max;};
	int get_samp_max(){return samp_max;};

  //-- I/O Methods --
  public:
	void dsp_open(char* device);	//Open sound board
	void dsp_close();		//Close sound board
	void dsp_capture();		//Capture a bufferfull of sound
	void dsp_play();		//Play the first two channels
	void dsp_play(int chan_idxs[], int chan_idxs_size);
					//Play specified channels

	void file_read(char* name);
					//Read data from a file
	void file_write(char* name);	//Write data to a file

  //-- Operators --
  public:
	inline BUF_TYPE* operator[](int i) 
		{ /*assert(i<chan_max);*/ return buf[i]; }

};


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