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TeX 1995 July
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TeX CD-ROM July 1995 (Disc 1)(Walnut Creek)(1995).ISO
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pkcharinfo.c
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C/C++ Source or Header
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1992-11-24
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3KB
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96 lines
/* $Log: pkcharinfo.c,v $
* Revision 0.8 92/11/23 19:46:52 19:46:52 bt (Bo Thide')
* Fixed resolution bug. Portable downloading. Added/changed options. PJXL color support
*
* Revision 0.7 92/11/13 02:41:36 02:41:36 bt (Bo Thide')
* More bug fixes and improvements. Support for PaintJet XL
*
* Revision 0.6 92/11/10 21:48:34 21:48:34 bt (Bo Thide')
* Bug fixes. Added -R option. Better font handling.
*
* Revision 0.5 92/11/09 16:25:40 16:25:40 bt (Bo Thide')
* Rewrite of dospecial.c. Extended \special support
*
* Revision 0.4 92/11/08 02:45:56 02:45:56 bt (Bo Thide')
* Changed to portable bit manipulations. Replaced strrstr for non-POSIX compliant C. Fixed numerous bugs. Added support for more \special's.
*
* Revision 0.3 92/08/24 12:45:47 12:45:47 bt (Bo Thide')
* Fixed 8 bit (dc font) support.
*
* Revision 0.2 92/08/23 17:28:59 17:28:59 bt (Bo Thide')
* Source cleaned up. Changed certain function calls. Removed globals.
*
* Revision 0.1 92/08/22 23:58:48 23:58:48 bt (Bo Thide')
* First Release.
* */
/*
* This routine determines the global variables
* c_flag, dyn_f, c_width, c_height, c_hoffset, c_voffset
* for the character c. (cbase + c)->pk_char points to its flag byte relative
* to pkbase. It returns a pointer, which points to the first run count of
* the character in progress.
*/
#include <stdio.h>
#include "globals.h"
#include "macros.h"
byte *pkcharinfo(c)
int c;
{
int format;
byte *p;
charfmt *u;
long tfm;
u = cbase + c;
if(u->pk_char == 0) {
c_flag = dyn_f = c_width = c_height = c_hoffset = c_voffset = 0;
if(verbose)
fprintf(stderr, "Character %d does not exist in this font\n",c);
return(NULL);
}
p = pkbase + u->pk_char;
c_flag = getpubyte(p);
dyn_f = c_flag >> 4;
format = c_flag & FMASK;
if(format < 4) {
p += 2;
tfm = getputrio(p);
p++;
c_width = getpubyte(p);
c_height = getpubyte(p);
c_hoffset = getpsbyte(p);
c_voffset = getpsbyte(p);
}
else if(format < 7) {
p += 3;
tfm = getputrio(p);
p += 2;
c_width = getpupair(p);
c_height = getpupair(p);
c_hoffset = getpspair(p);
c_voffset = getpspair(p);
}
else {
p += 8;
tfm = getpuquad(p);
p += 8;
c_width = getpuquad(p);
c_height = getpuquad(p);
c_hoffset = getpsquad(p);
c_voffset = getpsquad(p);
}
u->tfm_width = round(tfm*convtfm);
u->pxl_width = round(tfm*convpxl);
#ifdef DEBUG
fprintf(stderr,"pkcharinfo: tfm = %ld, convtfm = %g, convpxl = %g\n",
tfm, convtfm, convpxl);
#endif /* DEBUG */
return(p);
}