diff saitools/napgraph.c @ 0:5242703e91d3 tip

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

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/saitools/napgraph.c	Fri May 20 15:19:45 2011 +0100
@@ -0,0 +1,433 @@
+/*
+    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.
+*/
+/* napgraph.c 
+*
+* M. Akeroyd  11th June 1993. Revised Winter 1994.
+*/
+
+
+
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "tip.h"
+
+
+/* Function declarations */
+/*---------------------------------------------------------------------------*/
+
+void parsecommandline (int argc, char *argv[], char inputfn[], char outputfn[]);
+
+int readheader_nap(FILE *inputfp);
+void checkheader();
+void writeheader(FILE *outputfp);
+int fakeheader_sai();
+void changeheader(int no_frames, int new_pwidth, int new_nwidth, int framewidth_samples_output);
+
+void find_intervals_nap(int channel, int maximum_interval, int sample);
+
+void writedata_output (FILE *outputfp, int samples_to_write);
+FILE *open_file (char filefn[], FILE *dir_default, int streamtype);
+
+void write_matrix_hori_time(int framewidth, FILE *outputfigurefp);
+void write_matrix_hori_freq(int framewidth, FILE *outputfigurefp);
+
+
+
+
+/* Data arrays: global */
+/*---------------------------------------------------------------------------*/
+
+
+short freqdata[MAX_CHANNELS];                /* input .nap: a single column */
+short previousfreqdata[MAX_CHANNELS];
+short previouspreviousfreqdata[MAX_CHANNELS];
+short outputdata[MAX_DATA]; 
+short outputfiguredata[MAX_DATA]; 
+short outputgrounddata[MAX_DATA]; 
+
+short interval[MAX_CHANNELS][MAX_DATA];      /* histogram */ 
+short summation[MAX_CHANNELS];
+
+short clip[MAX_CHANNELS];                    /* set to ON of clipping occured*/
+
+
+/* other variables */
+/*---------------------------------------------------------------------------*/
+struct Peak peak[MAX_PEAKS];
+struct Peak peak_nap_right[MAX_CHANNELS];
+struct Peak peak_nap_left[MAX_CHANNELS];
+
+
+/* variables read from header */
+/*---------------------------------------------------------------------------*/
+
+char header[MAX_LINES_HEADER][MAX_LINE_LENGTH];
+int header_lines;
+
+int no_frames;
+int frameheight;             /* number of channels */
+int framewidth_samples;      /* pwidth + nwidth * samplerate */
+int frameshift_samples;      /* frstep_aid * samplerate */
+int pwidth;                  /* in msecs */
+int nwidth;                  /* in msecs: NEGATIVE */
+int width_win;               /* pixels */
+int height_win;              /* pixels */
+long samplerate;             /* samples per sec */
+int mincf;                   /* Hz */
+int maxcf;                   /* Hz */
+
+int no_columns;
+int nap_height;
+int greyscaleflag = OFF;
+
+
+/* misc */
+/*---------------------------------------------------------------------------*/
+
+char progname[MAX_STRING_LENGTH];
+char outputfigurefn[MAX_STRING_LENGTH];
+
+
+int verboseflag = OFF;               /* -v */
+int removeflag = OFF;                /* -r */
+double removevalue = 0.1;
+int widthflag = OFF;                 /* -w */     /* if OFF, use DEFAULT */
+int total_width;                     /* -w */     /* total width of new .sai */
+int asciiflag = OFF;
+int asciireverseflag = OFF;
+int summationflag = OFF;
+int oppositearchflag = OFF;          /* -oparch : see saigraph.c for info */
+
+
+
+/* ...................           Main           .............................*/
+/* ..........................................................................*/
+/* ..........................................................................*/
+
+
+
+void main (int argc, char *argv[])
+{
+  int sample;
+  int n;
+
+  int column, channel;
+  int framewidth_samples_input,
+      framewidth_samples_output;
+  int new_pwidth, 
+         new_nwidth;
+  int header_bytes = 0;
+ 
+  char inputfn[MAX_STRING_LENGTH], 
+       outputbasefn[MAX_STRING_LENGTH];
+
+  FILE *inputfp, *outputfigurefp;
+
+
+  strcpy(progname, argv[0]);
+  strcpy(inputfn, "");
+  strcpy(outputbasefn, "");
+  strcpy(outputfigurefn, "");
+
+  /* parse command line */
+  parsecommandline(argc, argv, inputfn, outputbasefn);
+
+  if (strcmp(outputbasefn, "") == 0) 
+    strcpy(outputfigurefn, "");
+  else {
+    strcpy(outputfigurefn, outputbasefn);
+/*    strcat(outputfigurefn, OUTPUT_EXT);*/
+  }
+
+
+  /* open files */
+  /* default directions are:
+   * input = stdin 
+   * figure = stdout
+   */
+
+  inputfp = open_file(inputfn, stdin, READ);
+  outputfigurefp = open_file(outputfigurefn, stdout, WRITE);
+
+  /* read Header */
+  header_bytes = readheader_nap(inputfp);
+
+  /* do some error-checking on the header, and set the fread pointer 
+   * to the right place */
+  checkheader();
+
+  /* fake the .sai header, but first copy the important variables:
+   *   no of columns (no_frames)
+   *   height (frameheight)
+   */
+  no_columns = no_frames;
+  nap_height = frameheight;
+  header_lines = fakeheader_sai();
+
+  /* reset the variables */
+  framewidth_samples_input = framewidth_samples;
+  if (widthflag == OFF) {
+    new_pwidth = + PWIDTH;
+    new_nwidth = - NWIDTH;}
+  else {
+    new_pwidth = + NEW_PWIDTH;
+    new_nwidth = - (new_pwidth + total_width);}
+
+  framewidth_samples_output = (int) ((int) (abs(new_pwidth) + abs(new_nwidth)) * samplerate ) / 1000;
+  
+  if (framewidth_samples_output >= MAX_DATA) {
+    fprintf(stderr, "%s: new frame is  too wide at %i: only alllowed %i samples\n", progname, framewidth_samples_output, MAX_DATA);
+    exit(-1); }
+
+  
+  /* change header */
+  changeheader(1, new_pwidth, new_nwidth, framewidth_samples_output);
+
+  /* write header */
+  if (asciiflag == OFF) 
+    writeheader(outputfigurefp);
+  else {
+    /* begining of ascii header. The rest depends on the matrix format ... */
+    fprintf(outputfigurefp, "# napgraph output.  %s\n", inputfn);
+    fprintf(outputfigurefp, "# \n");
+    fprintf(outputfigurefp, "# samplerate=%i  pwidth=%d  nwidth=%d  columns=%i ", samplerate, new_pwidth, new_nwidth, no_columns);
+    fprintf(outputfigurefp, " mincf=%i  maxcf=%i  channels=%i \n", mincf, maxcf, nap_height);
+    fprintf(outputfigurefp, "# \n");
+  }
+
+/* --------------------------------------------------------------------------*/
+
+
+  if  (verboseflag==ON) { 
+    fprintf(stderr, " channels "); 
+    fflush(stderr);}
+
+  
+  /* clear arrays */
+  
+  for (channel=0; channel<MAX_CHANNELS; channel++) {
+    previousfreqdata[channel] = previouspreviousfreqdata[channel] = 0;
+    peak_nap_left[channel].sample = 0;
+    peak_nap_right[channel].sample = 0;
+    for(sample=0; sample<MAX_DATA; sample++)
+      interval[channel][sample] = 0;
+    clip[channel] = OFF;
+  }
+
+
+  /* Main loop */
+
+
+/* .....  */
+
+  for (column=1; column<=no_columns; column++) {
+
+    if ((column % 100) == 1 ) { 
+      if (verboseflag==ON) {
+	fprintf(stderr, " %i ", column); 
+	fflush(stderr);}
+    }
+
+    /* load a column's worth of data  */
+    fread (freqdata, 2, (size_t) nap_height, inputfp);
+    
+    /* move everything UP one byte.
+     * Don't know why ... */
+    for (channel=nap_height; channel >=1; channel--)
+      freqdata[channel] = freqdata[channel-1];
+
+    /* This next is a simple input check: if any numbers < 0 , then say so */
+    for(channel=0; channel<nap_height; channel++)
+      if (freqdata[channel] < 0 )  {
+	fprintf(stderr, "%s: something's gone wrong: the data is negative.\n", progname);
+	exit(-1); }
+
+
+    /* the important bits ... */
+    for (channel=1; channel <=nap_height; channel++)
+      find_intervals_nap(channel, framewidth_samples_output, column);
+    
+
+  } /* column */
+
+
+/* --------------------------------------------------------------------------*/
+/* --------------------------------------------------------------------------*/
+
+
+  fflush(stdout);
+
+  /* If required, sum the values */
+  if (summationflag==ON) {
+    /* clear ... */
+    for (channel = 1; channel <= frameheight; channel ++)
+	summation[channel] = 0;
+    /* set ... */
+    for (channel = 1; channel <= frameheight; channel ++)
+      for (sample = 0; sample < framewidth_samples_output; sample++)
+	summation[channel] += interval[channel][sample];
+  }
+
+
+  /* write output */
+
+  if (asciiflag == OFF) {
+    for (channel = 1; channel <= frameheight; channel ++){
+      for (sample = 0; sample < framewidth_samples_output; sample++)
+	outputfiguredata[sample] = interval[channel][sample];
+      writedata_output(outputfigurefp, framewidth_samples_output);
+    }
+  }  
+  else {
+    frameheight = nap_height;
+    if (asciireverseflag == OFF) 
+      write_matrix_hori_freq(framewidth_samples_output, outputfigurefp);
+    else
+      write_matrix_hori_time(framewidth_samples_output, outputfigurefp);
+}    
+
+
+/* --------------------------------------------------------------------------*/
+/* --------------------------------------------------------------------------*/
+
+
+  /* Tidy up and exit */
+  fprintf(stderr, "\n");
+  fclose(inputfp); 
+  fclose(outputfigurefp); 
+ 
+  if ( ferror(inputfp) != 0) {
+    fprintf(stderr, " %s : error closing input file.\n", progname);
+    exit(-1);}
+
+  if ( ferror(outputfigurefp) != 0) {
+    fprintf(stderr, " %s : error closing figure file.\n", progname);
+    exit(-1);}
+
+  exit(0);
+
+} /* Main */
+
+
+
+
+
+
+
+
+/* ..........................................................................*/
+/* ..........................................................................*/
+/* ..........................................................................*/
+/* ..........................................................................*/
+
+
+
+
+
+
+
+
+
+
+void parsecommandline(int argc, char *argv[], char inputfn[], char outputbasefn[])
+{
+  int x=1, helpflag = OFF;
+  int group;
+
+  while (x < argc){
+    if      (!strcmp(argv[x], "-o")) {strcpy(outputbasefn, argv[x+1]); x+=2;}
+    else if (!strcmp(argv[x], "-output")) {strcpy(outputbasefn, argv[x+1]); x+=2;}
+    else if (!strcmp(argv[x], "-i")) {strcpy(inputfn, argv[x+1]); x+=2;}
+    else if (!strcmp(argv[x], "-input")) {strcpy(inputfn, argv[x+1]); x+=2;}
+    else if (!strcmp(argv[x], "-help")) {helpflag = ON; x+=1;}
+    else if (!strcmp(argv[x], "-h")) {helpflag = ON; x+=1;}
+    else if (!strcmp(argv[x], "-verbose")) {verboseflag = ON; x+=1;}
+    else if (!strcmp(argv[x], "-v")) {verboseflag = ON; x+=1;}
+    else if (!strcmp(argv[x], "-w")) {widthflag = ON; total_width=atof(argv[x+1]); x+=2;}
+    else if (!strcmp(argv[x], "-width")) {widthflag = ON; total_width=atof(argv[x+1]); x+=2;}
+    else if (!strcmp(argv[x], "-v")) {verboseflag = ON; x+=1;}
+    else if (!strcmp(argv[x], "-r")) { removeflag = ON; removevalue = atof(argv[x+1]); x+=2;}
+    else if (!strcmp(argv[x], "-a")) { asciiflag = ON;x+=1;}
+    else if (!strcmp(argv[x], "-ar")) { asciiflag = ON; asciireverseflag=ON; x+=1;}
+    else if (!strcmp(argv[x], "-s")) { summationflag=ON; x+=1;}
+    else if (!strcmp(argv[x], "-g")) { greyscaleflag=ON; x+=1;}
+    else if (!strcmp(argv[x], "-grey")) { greyscaleflag=ON; x+=1;}
+    else if (!strcmp(argv[x], "-gray")) { greyscaleflag=ON; x+=1;}
+    else if (!strcmp(argv[x], "-oparch")) {oppositearchflag = ON; x+=1;}
+    else {fprintf(stderr, "%s: unknown option %s\n", progname, argv[x]);
+	  exit(-1);}
+  }
+  if (helpflag == ON)
+    {
+      fprintf(stderr, "\n");
+      fprintf(stderr, "                         %s\n", progname);
+      fprintf(stderr, " -----------------------------------------------------------\n");
+      fprintf(stderr, " Works out a histogram of peak intervals, from a .nap\n");
+      fprintf(stderr, " Default output is a .sai file: if -a or -ar specified,\n");
+      fprintf(stderr, " then output is a ASCII matrix.\n");
+      fprintf(stderr, "\n");
+      fprintf(stderr, " The -oparch option is REQUIRED if reading a Sun .sai files \n");
+      fprintf(stderr, " on a DEC cpu or vice-versa.\n");
+      fprintf(stderr, " Add .nap to input filename, .sai to output filename.\n");
+      fprintf(stderr, " -----------------------------------------------------------\n");
+      fprintf(stderr, " -i <.nap file>      input file             default = stdin\n");
+      fprintf(stderr, " -o <.sai file>      output file            default = stdout\n");
+      fprintf(stderr, " -oparch          assume input was generated on an opposing architecture cpu\n");
+      fprintf(stderr, "\n");
+      fprintf(stderr, " -a                  ASCII output: rows = channels\n");
+      fprintf(stderr, " -ar                 ASCII output: rows = time intervals\n");
+      fprintf(stderr, " -s                  include summations (ASCII only)\n");
+      fprintf(stderr, "\n");
+      fprintf(stderr, " -w <int>            width of graph.sai (msecs).\n");
+      fprintf(stderr, " -r <fraction>       remove any peaks F(n) < F(n+1) & F(n-1) * fract \n");
+      fprintf(stderr, "                                            default = %.3f\n", removevalue);
+      fprintf(stderr, "\n");
+      fprintf(stderr, " -v                  verbose output (to stderr)\n");
+      fprintf(stderr, " -g                  Change .sai format to 'grayscale'.\n");
+      fprintf(stderr, "\n\n");
+      exit(-1);}
+
+}  
+
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