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DVIPS.ZIP
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MAKEFONT.C
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C/C++ Source or Header
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1993-02-13
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7KB
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287 lines
/*
* This software is Copyright 1988 by Radical Eye Software.
*/
#include "dvips.h"
extern int quiet ;
extern int filter ;
extern int dontmakefont ;
extern int system() ;
extern Boolean secure ;
extern char *getenv(), *newstring() ;
extern char *mfmode ;
#ifdef __EMX__
#include <stdlib.h>
#endif
#ifdef MSDOS
extern char *mfjobname ;
extern FILE *mfjobfile ;
extern char *pkpath ;
extern int actualdpi ;
extern int vactualdpi ;
/*
* Write mfjob file
*/
void
mfjobout(font,mag)
char *font;
double mag;
{
if (mfjobfile == (FILE *)NULL) {
char pkout[128];
char *p;
int i;
for (p=pkpath, i=0; *p && *p!=PATHSEP && i<127; p++) {
if (*p=='%') {
p++;
switch(*p) { /* convert %x codes to mfjob @y codes */
case 'b':
sprintf(pkout+i,"%d",actualdpi);
break;
case 'd':
strcpy(pkout+i,"@Rr");
break;
case 'f':
strcpy(pkout+i,"@f");
break;
case 'p':
strcpy(pkout+i,"pk");
break;
case 'm':
strcpy(pkout+i,mfmode);
break;
case '%':
strcpy(pkout+i,"%");
break;
default:
sprintf(pkout+i, "%%%c", *p) ;
fprintf(stderr,"Unknown option %%%c in pk path\n",*p);
}
i += strlen(pkout+i);
}
else
pkout[i++] = *p;
}
*p='\0';
mfjobfile = fopen(mfjobname,"w");
if (mfjobfile == (FILE *)NULL)
return;
fprintf(mfjobfile,"input[dvidrv];\n{\ndriver=dvips;\n");
if (actualdpi == vactualdpi)
fprintf(mfjobfile,"mode=%s[%d];\n",mfmode,actualdpi);
else
fprintf(mfjobfile,"mode=%s[%d %d];\n",mfmode,actualdpi,vactualdpi);
fprintf(mfjobfile,"output=pk[%s];\n",pkout);
}
fprintf(mfjobfile,"{font=%s; mag=%f;}\n",font,mag);
(void)fprintf(stderr,
"Appending {font=%s; mag=%f;} to %s\n",font,mag,mfjobname) ;
}
#endif
/*
* Calculate magstep values.
*/
static int
magstep(n, bdpi)
register int n, bdpi ;
{
register float t ;
int neg = 0 ;
if (n < 0) {
neg = 1 ;
n = -n ;
}
if (n & 1) {
n &= ~1 ;
t = 1.095445115 ;
} else
t = 1.0 ;
while (n > 8) {
n -= 8 ;
t = t * 2.0736 ;
}
while (n > 0) {
n -= 2 ;
t = t * 1.2 ;
}
if (neg)
return((int)(0.5 + bdpi / t)) ;
else
return((int)(0.5 + bdpi * t)) ;
}
#ifdef MAKEPKCMD
static char *defcommand = MAKEPKCMD " %n %d %b %m" ;
#else
#ifdef MSDOS
#ifdef __EMX__
static char *doscommand = "command /c MakeTeXP %n %d %b %m" ;
static char *os2command = "cmd /c MakeTeXP %n %d %b %m" ;
#define defcommand ( _osmode==OS2_MODE ? os2command : doscommand )
#else
static char *defcommand = "command /c MakeTeXP %n %d %b %m" ;
#endif
#else
#ifdef VMCMS
static char *defcommand = "EXEC MakeTeXPK %n %d %b %m" ;
#else
static char *defcommand = "MakeTeXPK %n %d %b %m" ;
#endif
#endif
#endif
char *command = 0 ;
/*
* This routine tries to create a font by executing a command, and
* then opening the font again if possible.
*/
static char buf[125] ;
void
makefont(name, dpi, bdpi)
char *name ;
int dpi, bdpi ;
{
register char *p, *q ;
register int m, n ;
#ifdef MSDOS
double t;
#endif
if (command == 0)
if (secure == 0 && (command=getenv("MAKETEXPK")))
command = newstring(command) ;
else
command = defcommand ;
for (p=command, q=buf; *p; p++)
if (*p != '%')
*q++ = *p ;
else {
switch (*++p) {
case 'n' : case 'N' :
(void)strcpy(q, name) ;
break ;
case 'd' : case 'D' :
(void)sprintf(q, "%d", dpi) ;
break ;
case 'b' : case 'B' :
(void)sprintf(q, "%d", bdpi) ;
break ;
case 'm' : case 'M' :
/*
* Here we want to return a string. If we can find some integer
* m such that floor(0.5 + bdpi * 1.2 ^ (m/2)) = dpi, we write out
* magstep(m/2)
* where m/2 is a decimal number; else we write out
* dpi/bdpi
* We do this for the very slight improvement in accuracy that
* magstep() gives us over the rounded dpi/bdpi.
*/
m = 0 ;
if (dpi < bdpi) {
while (1) {
m-- ;
n = magstep(m, bdpi) ;
if (n == dpi)
break ;
if (n < dpi || m < -40) {
m = 9999 ;
break ;
}
}
} else if (dpi > bdpi) {
while (1) {
m++ ;
n = magstep(m, bdpi) ;
if (n == dpi)
break ;
if (n > dpi || m > 40) {
m = 9999 ;
break ;
}
}
}
#ifdef MSDOS
/* write out magnification as decimal number */
if (m == 9999) {
t = (double)dpi/bdpi;
} else {
if (m < 0)
n = -m;
else
n = m;
if (n & 1) {
n &= ~1 ;
t = 1.095445115 ;
} else
t = 1.0 ;
while (n > 0) {
n -= 2 ;
t = t * 1.2 ;
}
if (m < 0)
t = 1 / t ;
}
(void)sprintf(q, "%12.9f", t) ;
#else
if (m == 9999) {
(void)sprintf(q, "%d+%d/%d", dpi/bdpi, dpi%bdpi, bdpi) ;
} else if (m >= 0) {
(void)sprintf(q, "magstep\\(%d.%d\\)", m/2, (m&1)*5) ;
} else {
(void)sprintf(q, "magstep\\(-%d.%d\\)", (-m)/2, (m&1)*5) ;
}
#endif
break ;
case 0 : *q = 0 ;
break ;
default: *q++ = *p ;
*q = 0 ;
break ;
}
q += strlen(q) ;
}
*q = 0 ;
if (mfmode) {
strcpy(q, " ") ;
strcat(q, mfmode) ;
}
#ifndef VMCMS /* no filters and no need to print to stderr */
#ifndef MSDOS
#ifndef MVSXA
if (filter)
(void)strcat(buf, quiet ? " >/dev/null" : " 1>&2") ;
#endif
#endif
#endif
#ifdef MSDOS
if (! quiet && mfjobname == (char *)NULL)
(void)fprintf(stderr, "- %s\n", buf) ;
if (dontmakefont == 0) {
if (mfjobname != (char *)NULL)
mfjobout(name,t);
else
(void)system(buf) ;
}
#else
if (! quiet)
(void)fprintf(stderr, "- %s\n", buf) ;
if (dontmakefont == 0)
(void)system(buf) ;
#endif
else {
static FILE *fontlog = 0 ;
if (fontlog == 0) {
fontlog = fopen("missfont.log", "a") ;
if (fontlog != 0) {
(void)fprintf(stderr,
#ifndef VMCMS
"Appending font creation commands to missfont.log\n") ;
#else
"\nMissing font data will be passed to DVIPS EXEC via MISSFONT LOG\n");
#endif
}
}
if (fontlog != 0)
(void)fprintf(fontlog, "%s\n", buf) ;
}
}