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/*
* DEVICE dependent, raster font dependent
*/
#include "defs.h"
#include "emit.h"
#include "global.h"
#include "rastfont.h"
#include "ps.h"
void getpackdict();
struct confop pdcop = {
"packdict",
getpackdict
};
void getdvidict();
struct confop ddcop = {
"dvidict",
getdvidict
};
struct packdict {
char *pd_name;
int pd_len;
int pd_pack;
struct packdict *pd_next;
};
struct packdict *packdicts = NULL;
void getdictstat();
void
getpackdict()
{
getdictstat(PACK);
}
void
getdvidict()
{
getdictstat(DVI);
}
void
getdictstat(p)
int p;
{
char field[STRSIZE];
struct packdict *pd;
getfield(field);
skipline();
pd = NEW(struct packdict, "packdict");
pd->pd_name = strsave(field);
pd->pd_len = strlen(field);
pd->pd_pack = p;
pd->pd_next = packdicts;
packdicts = pd;
}
dictform(name)
char *name;
{
struct packdict *pd;
for (pd = packdicts; pd != NULL; pd = pd->pd_next)
if (strncmp(name, pd->pd_name, pd->pd_len) == 0)
return pd->pd_pack;
return DVI;
}
static struct pdlist *pdlists = NULL;
static struct pdlist **nextpl = &pdlists;
struct pdlist *
getpdlist(corr)
int corr;
{
struct pdlist *pl;
for (pl = pdlists; pl != NULL; pl = pl->pl_next)
if (corr == pl->pl_corr) {
if (pl->pl_char++ == LASTPACKPSCHAR) {
pl->pl_font = dev_newdevfont();
pl->pl_char = FIRSTPACKPSCHAR;
} else if (pl->pl_char == NPACKPSCHARS)
pl->pl_char = 0;
return pl;
}
pl = NEW(struct pdlist, "pdlist");
pl->pl_corr = corr;
pl->pl_font = dev_newdevfont();
pl->pl_char = FIRSTPACKPSCHAR;
pl->pl_next = NULL;
*nextpl = pl;
nextpl = &(pl->pl_next);
return pl;
}
void
dev_rast_initfontdict(fe, c) /* output a character bitmap */
struct font_entry *fe;
int c;
{
struct rastchar_entry *ce;
struct rastfntinfo *rfi;
struct pdlist *pl;
int corr, bytewidth, i;
float cf;
int j;
unsigned char *sl;
int cc;
float cw; /* char width, in "dots"
- we rely on PostScript maintaining sufficient accuracy */
end_string();
ce = &((rfi = rastfinfo(fe))->ch[c]);
/* open font dict before first char */
if (rfi->dictform == PACK) {
corr = (int)(rfi->corrfact*CORRNORM);
cf = (float)corr/CORRNORM;
if ((pl = getpdlist(corr))->pl_char == FIRSTPACKPSCHAR)
EMIT(outfp, "%.3f %d /%s NF\n",
cf, NPACKPSCHARS, psfname(pl->pl_font));
#ifdef STATS
if (fe->ncdl == -1)
fe->ncdl = 0;
#endif
ce->dev_font = pl->pl_font;
ce->dev_char = pl->pl_char;
} else /* if (rfi->dictform == DVI) */ {
cf = rfi->corrfact;
if (fe->ncdl == -1) {
fe->k = dev_newdevfont();
EMIT(outfp, "%.3f %d /%s NF\n",
cf, rfi->nfntchars, psfname(fe->k));
fe->ncdl = 0;
}
ce->dev_font = fe->k;
ce->dev_char = c;
}
dev_setfont(ce->dev_font); /* because this isn't done on pass 0 */
#ifdef DEBUG
if (Debug)
EMIT(outfp, "%% font: %s char: %x\n", fe->n, c);
#endif
bytewidth = (unsigned short)(ce->width + 7) >> 3;
EMITC('[');
if (!pscharbitmap(bytewidth, ce->nbpl, ce->height, ce->where.pixptr)) {
bytewidth = 1;
ce->height = 1;
}
cw = (float)ce->tfmw / (float)hconv;
EMIT(outfp, "\n%d %d %d %d %.3f] %d D\n",
bytewidth<<3, ce->height,
ce->xoffset, (((int)ce->height)-ce->yoffset)-1, cw/cf,
ce->dev_char);
#ifdef STATS
(fe->ncdl)++;
Snbpxl += bytewidth*ce->height;
fe->nbpxl += bytewidth*ce->height;
Sonbpx += (unsigned short)(ce->width*ce->height + 7) >> 3;
Sndc += 1;
#endif
}
/* Output in PostScript coord system (y +ive up, x +ive right)
(0,0) of char bitmap at lower left. Output scan lines
from bottom to top */
pscharbitmap(bytewidth, nbpl, height, pixel)
int bytewidth, nbpl, height;
char *pixel;
{
int i, j, cc;
unsigned char *sl;
EMITC('<');
for (i = height-1, cc = 2; i >= 0; i--) {
sl = (unsigned char *)(pixel + i*nbpl);
for (j = 0; j < bytewidth; j++, sl++) {
if (cc > 72) {
EMITS("\n "); cc = 2;
}
EMITH(*sl);
cc += 2;
}
}
if (bytewidth == 0 || height == 0) {
EMITS("00>");
return FALSE;
}
EMITC('>');
return TRUE;
}
void
dev_rast_initfe(fe)
struct font_entry *fe;
{
int rast_setchar(), rast_setstring();
fe->dev_fontdict = rast_fontdict;
fe->dev_setchar = rast_setchar;
fe->dev_setstring = rast_setstring;
rastfinfo(fe)->dictform = dictform(fe->n);
}
rast_setchar(c)
int c;
{
struct rastchar_entry *ce = &(rastfinfo(curfontent)->ch[c]);
int cw;
begin_string();
pschar(ce->dev_char);
*ps_move += (cw = ce->tfmw);
return cw;
}
rast_setstring(s, len)
char *s;
int len;
{
char *sp;
struct rastchar_entry *ce = rastfinfo(curfontent)->ch;
int cw = 0;
begin_string();
for (sp = s; sp < s+len; sp++) {
pschar((ce+*sp)->dev_char);
cw += (ce+*sp)->tfmw;
}
*ps_move += cw;
return cw;
}
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