comparison xaim/cartoon.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.
+*/
+
+/*
+* cartoon.c 
+* ----------
+*
+*
+* M. Akeroyd. July 1993. version 1.10
+* (ReadHeader is August 30, 1993)
+*
+* Revisions: MAA: Christmas 1993. 
+*/
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "xreview.h"
+
+
+
+/* General Parameters */
+
+extern char progname[MAX_STRING_LENGTH];
+extern int verboseflag;
+
+extern char *data_pointer;
+extern long location[MAX_FRAMES];
+extern int reviewimage_bitmap_pad;
+extern int reviewimage_bytesperline;
+
+
+/* .ctn parameters */
+
+extern char header[MAX_LINES_HEADER][MAX_LINE_LENGTH];
+extern int header_lines;        
+extern int no_frames;
+extern int depth;
+extern long samplerate;
+extern int frameheight;         
+extern int framewidth_samples;  
+extern int frameshift_samples;  
+extern double frstep_aid;
+extern double pwidth;
+extern double nwidth;
+extern int mincf;
+extern int maxcf;       
+
+/* X .... */
+
+extern int width_ctn; 
+extern int height_ctn;
+extern int x_ctn;
+extern int y_ctn;
+
+
+
+/*---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+
+
+
+int readheader(FILE *inputfp, char inputfn[]) 
+{ 
+  /* August 30, 1993 
+   * Most of the effort went into getting it to load the exact number of
+   * bytes, because the bitmap info follows on continously from the header.
+   * This version adds-up the number of bytes it actually has loaded, and if
+   * it needs anymore, gratutiously loads them.
+   * It seems to work with:
+   *  DECstation cartoon displayed on DECstation server
+   *  DECstation     ...      ...     Sun         ...
+   *  Sun   ...      ...      ...     DECstation  ...
+   *  Sun   ...      ...      ...     Sun         ...		
+   *  DECstation     ...      ...     Linux 386 PC server.
+   */
+
+  /* Assumed necessary conditions of a .ctn file:
+   * first line says "header_bytes= ... "
+   * last line says "Version= ..."
+   */
+
+  char tempstring[MAX_STRING_LENGTH];         
+  char *p_equal=" ";       /* pointer to where the '=' is in the headerline */
+  int bytes_required = 0;  /* num of bytes in header, as in "header_bytes=...
+			    * This is RETURNed */
+  int bytes_loaded = 0;    /* number actually loaded */
+  int counter;
+  int status;
+
+
+  /* Get first line */
+  header_lines = 0;
+  fgets(header[0], MAX_LINE_LENGTH, inputfp);
+
+  /* If the First Line ISN'T "header_bytes ...", add another ".ctn" to the end 
+   * and try again. tempstring holds the original name, before ".ctn" got
+   * added. 
+   */
+
+  strcpy(tempstring, inputfn);
+
+  if(strspn(header[0], "header_bytes") == 0) {
+    fclose(inputfp);
+    strcat(inputfn, INPUT_EXT);
+    inputfp = fopen(inputfn, "rb");
+    if (inputfp == NULL) {  
+      fprintf(stderr, "xreview : unable to open file %s\n", tempstring);
+      exit(-1);}
+    fgets(header[0], MAX_LINE_LENGTH, inputfp);
+    if(strspn(header[0], "header_bytes") == 0) {
+      fprintf(stderr, "xreview: is %s a .ctn file? \n", inputfn);
+      exit(-1);}}
+
+  /* Find out how many bytes there SHOULD be */
+  p_equal = strchr(header[0], '=');
+  bytes_required = atoi(++p_equal); 
+
+
+/*----------------------------------------*/
+
+
+  /* Loop on remaining lines, saving important information as required 
+   * Last line has "Version" in it.
+   */
+
+  while (strncmp(fgets(header[++header_lines], MAX_LINE_LENGTH, inputfp),
+		 "Version=", 8)  != 0) {
+
+    if (strncmp(header[header_lines], "frames=", 7) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      no_frames = atoi(++p_equal); }
+
+    if (strncmp(header[header_lines], "samplerate", 11) == 0 ) {
+      /* For some unknown reason, the samplerate has a "." at the
+       * end of it. Well, sometimes it does.
+       */
+      strncpy(tempstring, header[header_lines], 
+	      (strlen(header[header_lines])-0));
+      p_equal = strchr(tempstring, '=');
+      samplerate = atol(++p_equal); } 
+
+    if (strncmp(header[header_lines], "frameheight=", 12) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      frameheight = atoi(++p_equal); }
+
+    if (strncmp(header[header_lines], "framewidth=", 11) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      framewidth_samples = atoi(++p_equal); }
+
+    if (strncmp(header[header_lines], "frameshift=", 11) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      frameshift_samples = atoi(++p_equal); }
+
+    if (strncmp(header[header_lines], "frstep_aid=", 11) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      frstep_aid = atof(++p_equal);}
+
+    if (strncmp(header[header_lines], "pwidth_aid=", 11) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      pwidth = atof(++p_equal); }
+
+    if (strncmp(header[header_lines], "nwidth_aid=", 11) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      nwidth = atof(++p_equal); }
+
+    if (strncmp(header[header_lines], "mincf_afb=", 10) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      mincf = atoi(++p_equal); }
+
+    if (strncmp(header[header_lines], "maxcf_afb=", 10) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      maxcf = atoi(++p_equal); }
+
+    if (strncmp(header[header_lines], "width_win=", 10) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      width_ctn = atoi(++p_equal); }
+
+    if (strncmp(header[header_lines], "height_win=", 11) == 0 ) {
+      p_equal = strchr(header[header_lines], '=');
+      height_ctn = atoi(++p_equal); }
+
+    if (strncmp(header[header_lines], "x0_win=", 7) == 0 ) {
+      if (strncmp(header[header_lines], "x0_win=center", 13) == 0 ) {
+	/* -1 is used to mean 'center' */
+	x_ctn = -1;}
+      else {
+	p_equal = strchr(header[header_lines], '=');
+	x_ctn = atoi(++p_equal); } }
+
+    if (strncmp(header[header_lines], "y0_win=", 7) == 0 ) {
+      if (strncmp(header[header_lines], "y0_win=center", 13) == 0 ) {
+	/* -1 is used to mean 'center' */
+	y_ctn = -1;}
+      else {
+	p_equal = strchr(header[header_lines], '=');
+	y_ctn = atoi(++p_equal); } }
+
+  }
+
+/*---------------------------------*/
+
+  /* Some checks */
+
+  if (width_ctn == 0) {
+    if (verboseflag == ON)  fprintf(stderr, "\n");
+    fprintf(stderr, "xreview : width of cartoon window = 0. Stopping. \n");
+    exit(-1);}
+
+  if (height_ctn == 0) {
+    if (verboseflag == ON)  fprintf(stderr, "\n");
+    fprintf(stderr, "xreview : height of cartoon window = 0. Stopping. \n");
+    exit(-1);}
+
+  if (no_frames == 0) {
+    if (verboseflag == ON)  fprintf(stderr, "\n");
+    fprintf(stderr, "xreview : total frames = 0. Stopping. \n");
+    exit(-1);}
+
+  if (frameheight == 0) {
+    if (verboseflag == ON)  fprintf(stderr, "\n");
+    fprintf(stderr, "xreview : frameheight of cartoon = 0. Stopping. \n");
+    exit(-1);}
+
+/*-----------------------------------------------*/
+
+  /* how many bytes have we loaded ? */
+  for (counter=0; counter<=header_lines; counter++) 
+    bytes_loaded += strlen(header[counter]);
+  
+  /* read some more bytes, till we are at the end of the header */
+  for (counter = 1; counter <= (bytes_required - bytes_loaded); counter++) {
+    status = fgetc(inputfp);
+    if (status == EOF) {
+      if (verboseflag == ON)  fprintf(stderr, "\n");
+      fprintf(stderr, "xreview : unable to finish loading of header. \n");
+      exit(-1);}}
+
+  return bytes_required; 
+  }
+
+
+
+
+
+/*------------------------------------------------------------------------*/
+/*------------------------------------------------------------------------*/
+
+
+
+
+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")
+   * 
+   * If it doesn't work, put ".ctn" on the end and try again.
+   */
+
+  FILE *filefp = NULL;
+
+  if (strcmp(filefn, "") == 0) 
+    filefp = dir_default;
+  else {
+    if (streamtype == READ) 
+      filefp = fopen(filefn, "rb");
+    else 
+      filefp = fopen(filefn, "wb");}
+
+  if (filefp == NULL) {  
+    strcat(filefn, INPUT_EXT);
+    if (streamtype == READ) 
+      filefp = fopen(filefn, "rb");
+    else 
+      filefp = fopen(filefn, "wb");
+    if (filefp == NULL) {  
+      fprintf(stderr, "xreview : unable to open file %s\n", filefn);
+      exit(-1);}
+  }
+  return filefp;
+	
+}
+
+
+
+
+/*---------------------------------------------------------------------*/
+/*---------------------------------------------------------------------*/
+
+
+
+
+
+void close_files(FILE *fp)
+{
+
+  fclose(fp);
+ 
+  if ( ferror(fp) != 0) {
+    if (verboseflag == ON)  fprintf(stderr, "\n");
+    fprintf(stderr, "xreview : error closing file.\n");
+    exit(-1);}
+}
+
+
+
+
+
+/*---------------------------------------------------------------------*/
+/*---------------------------------------------------------------------*/
+
+
+
+
+
+void loaddata(FILE *inputfp)
+{
+  int required_bytes;
+  int frame;
+  long status;
+
+/*-----------------------------*/  
+
+  if  (verboseflag==ON) { 
+    fprintf(stderr, " loading frame ");
+    fflush(stderr);}
+  
+  required_bytes = (long) height_ctn*reviewimage_bytesperline*depth; 
+
+  if (no_frames >= MAX_FRAMES) {
+    if (verboseflag == ON)  fprintf(stderr, "\n");
+    fprintf(stderr, "xreview : too many frames (%i) \n", no_frames);
+    exit(-1);}
+
+/*-----------------------------*/
+
+  for (frame=1; frame <= no_frames; frame++) {
+
+    if  (verboseflag==ON) { 
+      fprintf(stderr, "%i ", frame);
+      fflush(stderr);}
+
+    location[frame] = (long) data_pointer;
+
+    clearerr(inputfp);
+    status = (long) fread (data_pointer, (size_t) 1, (size_t) required_bytes, inputfp);
+
+    if ((status != required_bytes) && frame == 1){
+      if (verboseflag == ON)  fprintf(stderr, "\n");
+      fprintf(stderr, "xreview : error reading first frame: wanted %li bytes, got %li\n", required_bytes, status);
+      exit(-1);}
+
+    if ((status != required_bytes) && frame != 1){
+      if (verboseflag == ON)  fprintf(stderr, "\n");
+      fprintf(stderr, "xreview : frame %i: wanted %li bytes, got %li. Continuing with %i frames.\n", frame, required_bytes, status, frame-1);
+      frame--;
+      no_frames=frame;}
+
+    if ((int) ferror(inputfp) != 0) {
+      if (verboseflag == ON)  fprintf(stderr, "\n");
+      fprintf(stderr, "xreview :  error reading frame %i\n", frame);
+      exit(-1);}
+
+    data_pointer = data_pointer + required_bytes;
+
+  } /* frame */
+
+/*-----------------------------*/  
+
+  data_pointer = (char *) location[1];
+
+}
+
+
+
+
+
+
+/* The End */
+/*---------------------------------------------------------------------*/
+/*---------------------------------------------------------------------*/