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- /****************************************************************
- * fbps.c: FBM Release 1.0 25-Feb-90 Michael Mauldin
- *
- * Copyright (C) 1989,1990 by Michael Mauldin. Permission is granted
- * to use this file in whole or in part for any purpose, educational,
- * recreational or commercial, provided that this copyright notice
- * is retained unchanged. This software is available to all free of
- * charge by anonymous FTP and in the UUNET archives.
- *
- * fbps: Convert a grayscale image to a PostScript file
- *
- * USAGE
- * % fbps < image > postscript
- *
- * EDITLOG
- * LastEditDate = Mon Jun 25 00:04:03 1990 - Michael Mauldin
- * LastFileName = /usr2/mlm/src/misc/fbm/fbps.c
- *
- * HISTORY
- * 25-Jun-90 Michael Mauldin (mlm@cs.cmu.edu) Carnegie Mellon
- * Package for Release 1.0
- *
- * 26-Aug-89 Paul Milazzo (milazzo) at BBN
- * Beta release (version 0.96)
- * Added rotation, big paper option
- *
- * 07-Mar-89 Michael Mauldin (mlm) at Carnegie Mellon University
- * Beta release (version 0.94) mlm@cs.cmu.edu
- *
- * 25-Apr-89 Paul Milazzo (milazzo) at BBN
- * Added color postscript support
- *
- * 27-Aug-88 Michael Mauldin (mlm) at Carnegie-Mellon University
- * Created.
- *****************************************************************/
-
- # include <stdio.h>
- # include <math.h>
- # include "fbm.h"
-
- # define PAPERWIDTH 8.5 /* inches */
- # define BIGPAPERWIDTH 11 /* inches */
- # define PAPERHEIGHT 11 /* inches */
- # define BIGPAPERHEIGHT 14 /* inches */
-
- char *ps_chars();
-
- # define USAGE \
- "Usage: fbps [-tT] [-pP] [-b] [-r] [ -s ] [ -w<width> ] < foo.fbm > foo.PS"
-
- #ifndef lint
- static char *fbmid =
- "$FBM fbps.c <1.0> 25-Jun-90 (C) 1989,1990 by Michael Mauldin, source \
- code available free from MLM@CS.CMU.EDU and from UUNET archives$";
- #endif
-
- main (argc, argv)
- char *argv[];
- { register int i, j;
- int rows, cols, rowlen;
- double paperwidth, paperheight;
- double maxwidth, maxheight;
- double width = -1, height, llx, lly;
- int bytcnt=0;
- int bigpaper=0, dotitle=1, dosize=1, rotate=0, scribe=0;
- char buf[BUFSIZ], *title=NULL, *creator=NULL;
- long clock = time ((long *) NULL);
- char *ctime ();
- FBM image;
-
- /* Clear the memory pointer so alloc_fbm won't be confused */
- image.cm = image.bm = (unsigned char *) NULL;
-
- /* Get the options */
- while (--argc > 0 && (*++argv)[0] == '-')
- { while (*++(*argv))
- { switch (**argv)
- { case 't': dotitle = 1; break;
- case 'T': dotitle = 0; break;
- case 'p': dosize = 1; break;
- case 'P': dosize = 0; break;
- case 'r': rotate++; break;
- case 'b': bigpaper++; break;
- case 's': scribe++; break;
- case 'w': width = atof (*argv+1); SKIPARG; break;
- default: fprintf (stderr, "%s\n", USAGE);
- exit (1);
- }
- }
- }
-
- if (!read_bitmap (&image, (char *) NULL))
- { exit (1); }
-
- if ((image.hdr.planes != 1 && image.hdr.planes != 3) || image.hdr.clrlen > 0)
- { fprintf (stderr,
- "Error:\tfbps only handles grayscale or unmapped color files\n");
- fprintf (stderr, "\tUse the clr2gray filter to create grayscale first\n");
- exit (1);
- }
-
- if (image.hdr.bits == 1)
- { fprintf (stderr, "Error:\tfbps cannot handle 1 bit deep bitmaps\n");
- fprintf (stderr, "\tUse 'fbcat -P | pbm2ps' to convert %s\n",
- "1bit files to Postscript");
- exit (1);
- }
-
- /* Get title */
- if (image.hdr.title && image.hdr.title[0])
- { title = image.hdr.title; }
-
- /* Get width and height */
- rows = image.hdr.rows;
- cols = image.hdr.cols;
- rowlen = image.hdr.rowlen;
-
- paperwidth = bigpaper ? BIGPAPERWIDTH : PAPERWIDTH;
- paperheight = bigpaper ? BIGPAPERHEIGHT : PAPERHEIGHT;
-
- maxwidth = (rotate ? paperheight : paperwidth) - 1.5;
- maxheight = (rotate ? paperwidth : paperheight) - 1.5;
-
- /* Pick output size */
- if (width < 0.0 || width > maxwidth)
- { width = maxwidth; }
-
- height = width * image.hdr.aspect * (double) rows / cols;
-
- if (height > maxheight)
- { width = width * maxheight / height; height = maxheight; }
-
- /* Pick lower left corner */
- if (scribe)
- { llx = lly = 0.0; }
- else
- { llx = (paperwidth - (rotate ? height : width)) / 2.0;
- lly = rotate ? width + (paperheight - width) / 2.0 :
- (paperheight - height) / 2.0;
- }
-
- fprintf (stderr,
- "FBM to PS \"%s\" width %1.3lf inches, height %1.3lf inches\n",
- title ? title : "(untitled)", width, height);
-
- /* Write out PostScript Header */
- if (scribe)
- { printf ("%%! Scribe @graphic style PostScript\n");
- if (title) { printf ("%%%%Title: %s\n", ps_chars (title)); }
- if (creator) { printf ("%%%%Creator: %s\n", ps_chars (creator)); }
- printf ("%%%%CreationDate: %s", ctime (&clock));
-
- printf ("/inch { 72 mul } def\n");
- printf ("/picstr %d string def\n\n", BYTESPERLINE);
- }
- else
- { printf ("%%!\n");
- if (title) { printf ("%%%%Title: %s\n", ps_chars (title)); }
- if (creator) { printf ("%%%%Creator: %s\n", ps_chars (creator)); }
- printf ("%%%%CreationDate: %s", ctime (&clock));
- printf ("%%%%Pages: 1\n");
- printf ("%%%%DocumentFonts:%s%s\n",
- dotitle ? " Times-Bold" : "",
- dosize ? " Times-Roman" : "");
- printf ("%%%%EndComments\n");
- printf ("%%%%EndProlog\n");
- printf ("%%%%Page: 1 1\n\n");
-
- printf ("/inch { 72 mul } def\n");
- printf ("/picstr %d string def\n\n", BYTESPERLINE);
-
- if (dotitle && title)
- { printf ("/Times-Bold findfont 14 scalefont setfont\n");
- printf ("%lg inch %lg inch moveto\n",
- llx + width/2.0, lly + 0.125 + height);
- printf ("(%s)\n", ps_chars (title));
- printf ("dup stringwidth pop 2 div 0 exch sub 0 rmoveto show\n\n");
- }
-
- if (dosize)
- { printf ("/Times-Roman findfont 8 scalefont setfont\n");
- printf ("%lg inch %lg inch moveto\n", llx + width, lly - 0.25);
- sprintf (buf, "[ %d by %d pixels, %1.3lf %s, %1.2lf by %1.2lf inches ]",
- image.hdr.cols, image.hdr.rows, image.hdr.aspect,
- "aspect ratio", width, height);
- printf ("(%s)\n", ps_chars (buf));
- printf ("dup stringwidth pop 0 exch sub 0 rmoveto show\n\n");
- }
-
- }
-
- printf ("gsave\n");
-
- if (llx != 0.0 || lly != 0.0)
- { printf ("%lg inch %lg inch translate ", llx, lly); }
-
- if (rotate)
- { fputs ("-90 rotate ", stdout); }
-
- printf ("%lg inch %lg inch scale\n", width, height);
-
- if (image.hdr.planes == 3) {
- int plane;
- int plnlen = image.hdr.plnlen;
- int bits = image.hdr.bits;
-
- /* use QMS colorimage operator */
-
- printf ("/redScanLine %d string def\n", cols * 8 / bits);
- printf ("/greenScanLine %d string def\n", cols * 8 / bits);
- printf ("/blueScanLine %d string def\n", cols * 8 / bits);
-
- printf ("%d %d %d [%d 0 0 %d 0 %d]\n",
- cols, rows, bits, cols, -rows, rows);
- puts ("{currentfile redScanLine readhexstring pop}");
- puts ("{currentfile greenScanLine readhexstring pop}");
- puts ("{currentfile blueScanLine readhexstring pop}");
- puts ("true 3 colorimage");
-
- for (j = 0; j < rows; j++) {
- for (plane = 0; plane < 3; plane++) {
- for (i = 0; i < cols; i++) {
- printf ("%02x", image.bm[plane * plnlen + j * rowlen + i]);
- if (++bytcnt % BYTESPERLINE == 0)
- putchar ('\n');
- }
- bytcnt = 0;
- putchar ('\n');
- }
- }
- }
- else {
- printf ("%d %d 8 [%d 0 0 -%d 0 %d] ", cols, rows, cols, rows, rows);
- printf ("{ currentfile picstr readhexstring pop }\n");
- printf ("image\n");
-
- /* Write out bitmap */
- for (j=0; j < rows; j++)
- { for (i=0; i < cols; i++)
- { printf ("%02x", image.bm[j * rowlen + i]);
-
- if (++bytcnt % BYTESPERLINE == 0) putchar ('\n');
- }
- }
-
- }
-
- /* Pad so there are exactly BYTESPERLINE bytes in each line */
- if (bytcnt % BYTESPERLINE)
- { while (bytcnt++ % BYTESPERLINE) printf ("00");
- printf ("\n");
- }
-
- printf ("grestore\n");
-
- if (!scribe)
- { printf ("\nshowpage\n\n");
- printf ("%%%%Trailer\n");
- }
-
- exit (0);
- }
-
- /****************************************************************
- * ps_chars: Put in proper escapes so an arbitrary string works
- * according to the PostScript definition of a literal
- ****************************************************************/
-
- char *ps_chars (txt)
- char *txt;
- { static char buf[512];
- register char *s = buf;
- char *index ();
-
- for (; *txt; txt++)
- { if (index ("()\\", *txt))
- { *s++ = '\\'; *s++ = *txt; }
- else if (*txt < ' ' || *txt > '~')
- { sprintf (s, "\\%03o", *txt & 0377); s += 4; }
- else
- { *s++ = *txt; }
- }
- *s = '\0';
- s = buf;
- return (s);
- }
-