view saitools/inout.c @ 0:5242703e91d3 tip

Initial checkin for AIM92 aimR8.2 (last updated May 1997).

/*
    Copyright (c) Applied Psychology Unit, Medical Research Council. 1993
    ===========================================================================

    Permission to use, copy, modify, and distribute this software without fee 
    is hereby granted for research purposes, provided that this copyright 
    notice appears in all copies and in all supporting documentation, and that 
    the software is not redistributed for any fee (except for a nominal 
    shipping charge). Anyone wanting to incorporate all or part of this 
    software in a commercial product must obtain a license from the Medical 
    Research Council.

    The MRC makes no representations about the suitability of this 
    software for any purpose.  It is provided "as is" without express or 
    implied warranty.
 
    THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 
    ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 
    THE A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES 
    OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 
    WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 
    ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 
    SOFTWARE.
*/

/*--------------------------------------------------------------------------*/

/*    inout.c 
*    ----------
*
* Some of the data in/out functions.
*
* 
* M. Akeroyd. 26th May 1993. Revised Winter 1994.
*/


#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "tip.h"


extern short outputfiguredata[MAX_DATA];
extern short outputgrounddata[MAX_DATA];

extern int verboseflag;
extern char progname[MAX_STRING_LENGTH];


/*---------------------------------------------------------------------------*/


FILE *open_file(char filefn[],  FILE *dir_default, int streamtype)
{
  /* Opens a file stream associated with filefn[].
   * If that's null, then the stream is a copy of the dir_default:
   *    stdin / stdout / stderr.
   * 'streamtype' is either READ (for "rb") or WRITE ("wb")
   */

  char tempfilefn[MAX_STRING_LENGTH];
  FILE *filefp = NULL;
  
  if (strcmp(filefn, "") == 0) 
    filefp = dir_default;
  else
    if (streamtype == READ) 
      filefp = fopen(filefn, "rb");
    else   /* WRITE */
      filefp = fopen(filefn, "wb");

  if (filefp == NULL) {
    fprintf(stderr, " %s : unable to open file %s\n", progname, filefn);
    exit(-1);}
   

  return filefp;
	
}



/*---------------------------------------------------------------------------*/




void writedata_output(FILE *outputfp, int samples_to_write)
{
  /* writes an array  shorts to outputfp 
   */

  fwrite(outputfiguredata, 2, samples_to_write, outputfp);

  if (ferror(outputfp)) {
    fprintf(stderr, "  %s : something's gone wrong: error writing output \n", progname);
    exit(-1);}
}



/*---------------------------------------------------------------------------*/



void writedata_output_fg(FILE *figurefp, FILE *groundfp, int samples_to_write)
{
  /* similar to writedata_output, but uses both figure and ground
   * arrays 
   */

  fwrite(outputfiguredata, 2, samples_to_write, figurefp);
  fwrite(outputgrounddata, 2, samples_to_write, groundfp);

  if (ferror(figurefp)!=0) {
    fprintf(stderr, "  %s : something's gone wrong: error writing figure \n", progname);
    exit(-1);}

  if (ferror(groundfp)!=0) {
    fprintf(stderr, "  %s : something's gone wrong: error writing ground \n", progname);
    exit(-1);}
}



/*---------------------------------------------------------------------------*/



void close_files(FILE *fp)
{

  if (verboseflag == ON)
    fprintf(stderr, "\n");

  fclose(fp);
 
  if ( ferror(fp) != 0) {
    fprintf(stderr, " %s : error closing file.\n", progname);
    exit(-1);}
}


/* The End */
/*---------------------------------------------------------------------------*/