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fbm12s.lha
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fbps.c
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1994-07-18
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/****************************************************************
* fbps.c: FBM Release 1.2 02-Jun-93 Michael Mauldin
*
* Copyright (C) 1989-1993 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
* 02-Jun-93 Michael Mauldin (mlm@cs.cmu.edu) Carnegie Mellon
* Add ability to handle mapped/unmapped 1,4,8 bit grayscale and color.
*
* 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 [-t<title> -c<credits> -b<banner> -d<dpi> [-pP] [ -rsL ] [ -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
int resolution = 300; /* dpi */
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, top, bottom;
int bytcnt=0, bigpaper=0, dobanner=1, dotitle=1, docredits=1, dosize=1;
int rotate=0, scribe=0, compressed=0;
char buf[BUFSIZ];
char *banner=NULL, *title=NULL, *credits=NULL, *creator=NULL;
long clock = time ((long *) NULL);
char *ctime ();
FBM image;
int iscolor, bits, padlen;
/* 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 'b': banner = *argv+1; dobanner = 1; SKIPARG; break;
case 'B': dobanner = 0; break;
case 't': title = *argv+1; dotitle = 1; SKIPARG; break;
case 'T': dotitle = 0; break;
case 'c': credits = *argv+1; docredits = 1; SKIPARG; break;
case 'C': docredits = 0; break;
case 'p': dosize = 1; break;
case 'P': dosize = 0; break;
case 'r': rotate++; break;
case 'd': resolution = atoi (*argv+1); SKIPARG; break;
case 'L': 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); }
/* Get title */
if (!title && image.hdr.title && image.hdr.title[0])
{ title = image.hdr.title; }
/* Get credits */
if (!credits && image.hdr.credits && image.hdr.credits[0])
{ credits = image.hdr.credits; }
/* 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) - 1.49;
maxheight = (rotate ? paperwidth : paperheight) - 1.49;
analyze_image (&image, &iscolor, &bits, &padlen);
/*==== Choose X and Y size, if width not specified ====*/
if (bits == 1)
{ int scalex, scaley, rscale;
double rwidth, rheight;
scalex = (maxwidth * resolution) / cols;
scaley = (maxheight * resolution) / rows;
rscale = (scalex < scaley) ? scalex : scaley;
if (rscale < 1)
{ fprintf (stderr,
"Error: image too large [%d,%d] to fit at %d dpi resolution\n",
cols, rows, resolution);
exit (1);
}
width = (double) cols * rscale / (double) resolution;
height = (double) rows * rscale / (double) resolution;
}
else
{ 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 (banner) { printf ("%%%%Banner: %s\n", ps_chars (banner)); }
if (credits) { printf ("%%%%Credits: %s\n", ps_chars (credits)); }
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);
dotitle = dosize = 0;
}
else
{ printf ("%%!PS-Adobe-1.0\n");
if (title) { printf ("%%%%Title: %s\n", ps_chars (title)); }
if (banner) { printf ("%%%%Banner: %s\n", ps_chars (banner)); }
if (credits) { printf ("%%%%Credits: %s\n", ps_chars (credits)); }
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);
}
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 ("\n\n");
top = height + 0.125;
bottom = -0.125;
if (dotitle && title)
{ printf ("/Times-Bold findfont 14 scalefont setfont\n");
printf ("%lg inch %lg inch moveto\n", width/2.0, top);
printf ("(%s)\n", ps_chars (title));
printf ("dup stringwidth pop 2 div 0 exch sub 0 rmoveto show\n\n");
top += (14.0 / 72.0) + 0.125;
}
if (credits && docredits)
{ bottom -= (8.0 / 72.0);
printf ("/Times-Roman findfont 8 scalefont setfont\n");
printf ("%lg inch %lg inch moveto\n", width, bottom);
printf ("(%s)\n", ps_chars (credits));
printf ("dup stringwidth pop 0 exch sub 0 rmoveto show\n\n");
}
else if (dosize)
{ bottom -= (8.0 / 72.0);
printf ("/Times-Roman findfont 8 scalefont setfont\n");
printf ("%lg inch %lg inch moveto\n", width, bottom);
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");
}
if (dobanner && banner)
{ printf ("/Times-Bold findfont 28 scalefont setfont\n");
printf ("%lg inch %lg inch moveto\n", width/2.0, top);
printf ("(%s)\n", ps_chars (banner));
printf ("dup stringwidth pop 2 div 0 exch sub 0 rmoveto show\n\n");
top += (28.0 / 72.0) + 0.125;
bottom -= (28.0 / 72.0);
printf ("%lg inch %lg inch moveto\n", width/2.0, bottom);
printf ("(%s)\n", ps_chars (banner));
printf ("dup stringwidth pop 2 div 0 exch sub 0 rmoveto show\n\n");
}
printf ("%lg inch %lg inch scale\n", width, height);
write_simple_ps (&image, stdout, iscolor, bits, padlen);
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);
}