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/* -*-C-*- reldfont.h */
/*-->reldfont*/
/**********************************************************************/
/****************************** reldfont ******************************/
/**********************************************************************/
void
reldfont(tfontptr) /* load (or reload) font parameters */
struct font_entry *tfontptr;
{
register UNSIGN16 the_char; /* loop index */
int err_code;
register struct char_entry *tcharptr;/* temporary char_entry pointer */
tfontptr->font_mag = (UNSIGN32)((actfact(
MAGSIZE((float)tfontptr->s/(float)tfontptr->d)) *
((float)runmag/(float)STDMAG) *
#if USEGLOBALMAG
actfact(mag) *
#endif
(float)RESOLUTION * 5.0) + 0.5);
tfontptr->designsize = (UNSIGN32)0L;
tfontptr->hppp = (UNSIGN32)0L;
tfontptr->vppp = (UNSIGN32)0L;
tfontptr->min_m = (INT32)0L;
tfontptr->max_m = (INT32)0L;
tfontptr->min_n = (INT32)0L;
tfontptr->max_n = (INT32)0L;
for (the_char = FIRSTPXLCHAR; the_char <= LASTPXLCHAR; the_char++)
{
tcharptr = &(tfontptr->ch[the_char]);
tcharptr->dx = (INT32)0L;
tcharptr->dy = (INT32)0L;
tcharptr->hp = (COORDINATE)0;
tcharptr->fontrp = -1L;
tcharptr->pxlw = (UNSIGN16)0;
tcharptr->rasters = (UNSIGN32*)NULL;
tcharptr->refcount = 0;
tcharptr->tfmw = 0L;
tcharptr->wp = (COORDINATE)0;
tcharptr->xoffp = (COORDINATE)0;
tcharptr->yoffp = (COORDINATE)0;
}
if (tfontptr != pfontptr)
(void)openfont(tfontptr->n);
if (fontfp == (FILE *)NULL) /* have empty font with zero metrics */
return;
for (;;) /* fake one-trip loop */
{ /* test for font types PK, GF, and PXL in order of preference */
(void)REWIND(fontfp); /* position to beginning-of-file */
if ( ((BYTE)nosignex(fontfp,(BYTE)1) == (BYTE)PKPRE) &&
((BYTE)nosignex(fontfp,(BYTE)1) == (BYTE)PKID) )
{
tfontptr->font_type = (BYTE)FT_PK;
tfontptr->charxx = (void(*)())charpk;
err_code = readpk();
break;
}
(void)REWIND(fontfp); /* position to beginning-of-file */
if ( ((BYTE)nosignex(fontfp,(BYTE)1) == (BYTE)GFPRE) &&
((BYTE)nosignex(fontfp,(BYTE)1) == (BYTE)GFID) )
{
tfontptr->font_type = (BYTE)FT_GF;
tfontptr->charxx = (void(*)())chargf;
err_code = readgf();
break;
}
(void)REWIND(fontfp); /* position to beginning-of-file */
if (nosignex(fontfp,(BYTE)4) == (UNSIGN32)PXLID)
{
tfontptr->font_type = (BYTE)FT_PXL;
tfontptr->charxx = (void(*)())charpxl;
err_code = readpxl();
break;
}
err_code = (int)EOF;
break;
} /* end one-trip loop */
if (err_code)
{
(void)sprintf(message,
"reldfont(): Font file [%s] is not a valid GF, PK, or PXL file",
tfontptr->name);
(void)fatal(message);
}
}
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