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/*
* Code to download a font definition at the beginning of a section.
* hacked by SPQR 8.95 to allow for non-partial downloading
*
*/
#include "dvips.h" /* The copyright notice in that file is included too! */
#ifndef DOWNLOAD_USING_PDFTEX
#define DOWNLOAD_USING_PDFTEX
#endif
#ifndef DOWNLOAD_USING_PDFTEX
#include "t1part.h"
#endif
#define DVIPS
/*
* These are the external routines we call.
*/
#include "protos.h"
/*
* These are the external variables we access.
*/
extern char *nextstring, *infont ;
extern FILE *bitfile ;
extern fontdesctype *curfnt ;
extern long bytesleft ;
extern long mbytesleft ;
extern quarterword *raster ;
extern quarterword *mraster ;
extern Boolean compressed ;
extern Boolean partialdownload ;
extern double mag ;
extern int actualdpi ;
static unsigned char dummyend[8] = { 252 } ;
extern int prettycolumn ;
extern int quiet ;
extern Boolean disablecomments ;
extern real conv ;
/*
* We have a routine that downloads an individual character.
*/
static int lastccout ;
void downchar P2C(chardesctype *, c, shalfword, cc)
{
register long i, j ;
register halfword cheight, cwidth ;
register long k ;
register quarterword *p ;
register halfword cmd ;
register shalfword xoff, yoff ;
halfword wwidth = 0 ;
register long len ;
int smallchar ;
p = c->packptr ;
cmd = *p++ ;
if (cmd & 4) {
if ((cmd & 7) == 7) {
cwidth = getlong(p) ;
cheight = getlong(p + 4) ;
xoff = getlong(p + 8) ;
yoff = getlong(p + 12) ;
p += 16 ;
} else {
cwidth = p[0] * 256 + p[1] ;
cheight = p[2] * 256 + p[3] ;
xoff = p[4] * 256 + p[5] ; /* N.B.: xoff, yoff are signed halfwords */
yoff = p[6] * 256 + p[7] ;
p += 8 ;
}
} else {
cwidth = *p++ ;
cheight = *p++ ;
xoff = *p++ ;
yoff = *p++ ;
if (xoff > 127)
xoff -= 256 ;
if (yoff > 127)
yoff -= 256 ;
}
if (c->flags & BIGCHAR)
smallchar = 0 ;
else
smallchar = 5 ;
if (compressed) {
len = getlong(p) ;
p += 4 ;
} else {
wwidth = (cwidth + 15) / 16 ;
i = 2 * cheight * (long)wwidth ;
if (i <= 0)
i = 2 ;
i += smallchar ;
if (mbytesleft < i) {
if (mbytesleft >= RASTERCHUNK)
(void) free((char *) mraster) ;
if (RASTERCHUNK > i) {
mraster = (quarterword *)mymalloc((integer)RASTERCHUNK) ;
mbytesleft = RASTERCHUNK ;
} else {
k = i + i / 4 ;
mraster = (quarterword *)mymalloc((integer)k) ;
mbytesleft = k ;
}
}
k = i;
while (k > 0)
mraster[--k] = 0 ;
unpack(p, (halfword *)mraster, cwidth, cheight, cmd) ;
p = mraster ;
len = i - smallchar ;
}
if (cheight == 0 || cwidth == 0 || len == 0) {
cwidth = 1 ;
cheight = 1 ;
wwidth = 1 ;
len = 2 ;
if (compressed)
p = dummyend ; /* CMD(END); see repack.c */
else
mraster[0] = 0 ;
}
if (smallchar) {
p[len] = cwidth ;
p[len + 1] = cheight ;
p[len + 2] = xoff + 128 ;
p[len + 3] = yoff + 128 ;
p[len + 4] = c->pixelwidth ;
} else
/*
* Now we actually send out the data.
*/
specialout('[') ;
if (compressed) {
specialout('<') ;
mhexout(p, len + smallchar) ;
specialout('>') ;
} else {
i = (cwidth + 7) / 8 ;
if (i * cheight > 65520) {
long bc = 0 ;
specialout('<') ;
for (j=0; j<cheight; j++) {
if (bc + i > 65520) {
specialout('>') ;
specialout('<') ;
bc = 0 ;
}
mhexout(p, i) ;
bc += i ;
p += 2*wwidth ;
}
specialout('>') ;
} else {
specialout('<') ;
if (2 * wwidth == i)
mhexout(p, ((long)cheight) * i + smallchar) ;
else {
for (j=0; j<cheight; j++) {
mhexout(p, i) ;
p += 2*wwidth ;
}
if (smallchar)
mhexout(p, (long)smallchar) ;
}
specialout('>') ;
}
}
if (smallchar == 0) {
numout((integer)cwidth) ;
numout((integer)cheight) ;
numout((integer)xoff + 128) ; /* not all these casts needed. */
numout((integer)yoff + 128) ;
numout((integer)(c->pixelwidth)) ;
}
if (lastccout + 1 == cc) {
cmdout("I") ;
} else {
numout((integer)cc) ;
cmdout("D") ;
}
lastccout = cc ;
}
/*
* Output the literal name of the font change command with PostScript index n
*/
static char goodnames[] =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" ;
void
makepsname P2C(register char *, s, register int, n)
{
n-- ;
*s++ = 'F' + n / (sizeof(goodnames)-1) ;
*s++ = goodnames[n % (sizeof(goodnames)-1)] ;
*s++ = 0 ;
}
void
lfontout P1C(int, n)
{
char buf[10];
char *b = buf ;
*b++ = '/' ;
makepsname(b, n) ;
cmdout(buf);
}
/*
* And the download procedure.
*/
void download P2C(charusetype *, p, int, psfont)
{
register int b, i ;
register halfword bit ;
register chardesctype *c ;
int cc, maxcc = -1, numcc ;
double fontscale ;
char name[10] ;
lastccout = -5 ;
name[0] = '/' ;
makepsname(name + 1, psfont) ;
curfnt = p->fd ;
curfnt->psname = psfont ;
if (curfnt->resfont) {
struct resfont *rf = curfnt->resfont ;
int non_empty=0;
for (b=0; b<16; b++)
if(p->bitmap[b] !=0)
non_empty =1;
if(non_empty==0 && curfnt->codewidth==1)
return;
cmdout(name) ;
/* following code re-arranged - Rob Hutchings 1992Apr02 */
c = curfnt->chardesc + 255 ;
cc = 255 ;
numcc = 0 ;
i = 0 ;
for (b=15; b>=0; b--) {
for (bit=1; bit; bit<<=1) {
if (p->bitmap[b] & bit) {
if (i > 0) {
numout((integer)i) ;
specialout('[') ;
i = 0 ;
}
numout((integer)c->pixelwidth) ;
c->flags |= EXISTS ;
numcc++ ;
} else {
i++ ;
c->flags &= ~EXISTS ;
}
c-- ;
cc-- ;
}
}
if (i > 0) {
numout((integer)i) ;
specialout('[') ;
}
specialout ('{') ;
if (rf->specialinstructions)
cmdout(rf->specialinstructions) ;
specialout ('}') ;
numout((integer)numcc) ;
/*
* This code has been bogus for a long time. The fix is
* straightforward. The input, curfnt->scaledsize, is the
* desired size of the font in dvi units. The output is the
* fontscale, which is the height of the font in output units
* which are simply pixels. Thus, all we need to do is multiply
* by the default generic conv, which properly takes into
* account magnification, num/den, output resolution, and so on.
* Sorry this bug has been in here so long. -tgr
*/
fontscale = curfnt->scaledsize * conv ;
(void)sprintf(nextstring, "%g", fontscale) ;
cmdout(nextstring) ;
(void)strcpy(nextstring, "/") ;
(void)strcat(nextstring, rf->PSname) ;
cmdout(nextstring) ;
/* end of changed section - Rob */
cmdout("rf") ;
rf->sent = 1 ;
return ;
}
/*
* Here we calculate the largest character actually used, and
* send it as a parameter to df.
*/
cc = 0 ;
numcc = 0 ;
for (b=0; b<16; b++) {
for (bit=32768; bit!=0; bit>>=1) {
if (p->bitmap[b] & bit) {
maxcc = cc ;
numcc++ ;
}
cc++ ;
}
}
if (numcc <= 0)
return ;
fontscale = ((double)(curfnt->scaledsize)) / 65536.0 ;
fontscale *= (mag/1000.0) ;
newline() ;
fprintf(bitfile, "%%DVIPSBitmapFont: %s %s %g %d\n", name+1, curfnt->name,
fontscale, numcc) ;
cmdout(name) ;
numout((integer)numcc) ;
numout((integer)maxcc + 1) ;
/*
* If we need to scale the font, we say so by using dfs
* instead of df, and we give it a scale factor. We also
* scale the character widths; this is ugly, but scaling
* fonts is ugly, and this is the best we can probably do.
*/
if (curfnt->dpi != curfnt->loadeddpi) {
numout((integer)curfnt->dpi) ;
numout((integer)curfnt->loadeddpi) ;
if (curfnt->alreadyscaled == 0) {
for (b=0, c=curfnt->chardesc; b<256; b++, c++)
c->pixelwidth = (c->pixelwidth *
(long)curfnt->dpi * 2 + curfnt->loadeddpi) / (2 * curfnt->loadeddpi) ;
curfnt->alreadyscaled = 1 ;
}
cmdout("dfs") ;
} else
cmdout("df") ;
c = curfnt->chardesc ;
cc = 0 ;
for (b=0; b<16; b++) {
for (bit=32768; bit; bit>>=1) {
if (p->bitmap[b] & bit) {
downchar(c, cc) ;
c->flags |= EXISTS ;
} else
c->flags &= ~EXISTS ;
c++ ;
cc++ ;
}
}
cmdout("E") ;
newline() ;
fprintf(bitfile, "%%EndDVIPSBitmapFont\n") ;
}
/*
* Magic code to deal with PostScript font partial downloading.
* We track the encodings we've seen so far and keep them in these
* structures. We rely on writet1 to load the encodings for us.
*/
static struct seenEncodings {
struct seenEncodings *next ;
char *name ;
char **glyphs ;
} *seenEncodings ;
#define MAX_CHAR_CODE 256
/*
* Load a new encoding and return the array of glyphs as a vector.
* Linear search.
*/
static char **getEncoding(char *encoding) {
struct seenEncodings *p = seenEncodings ;
while (p != 0)
if (strcmp(encoding, p->name) == 0)
break ;
else
p = p->next ;
if (p == 0) {
int i ;
p = (struct seenEncodings *)mymalloc(sizeof(struct seenEncodings)) ;
p->next = seenEncodings ;
seenEncodings = p ;
p->name = xstrdup(encoding) ;
p->glyphs = (char **)mymalloc((MAX_CHAR_CODE+1) * sizeof(char *)) ;
for (i=0; i<MAX_CHAR_CODE; i++)
p->glyphs[i] = ".notdef" ;
load_enc(encoding, p->glyphs) ;
}
return p->glyphs ;
}
/*
* When partially downloading a type 1 font, sometimes the font uses
* the built-in encoding (which we don't know at this point) so we want
* to subset it by character code. Sometimes the font uses a different
* encoding, so we want to subset it by glyph. These routines manage
* accumulating all the glyph names for a particular font from all
* the various uses into a single, slash-delimited string for writet1().
*
* If no glyphs have been added, extraGlyphs is null. In all cases,
* the memory allocated for this is in extraGlyphSpace.
*/
static char *extraGlyphs = 0 ;
#ifdef DOWNLOAD_USING_PDFTEX
static char *extraGlyphSpace = 0 ;
static int extraGlyphSize = 0 ;
static int glyphSizeUsed = 0 ;
/*
* We want to make sure we pass in null or "/" but never "".
*/
static void clearExtraGlyphList() {
glyphSizeUsed = 0 ;
extraGlyphs = 0 ;
}
/*
* Add the glyph name; make sure it hasn't been added already.
* We do this by adding it, so we can get the // around it,
* and *then* see if it's already there and if it is un-add it.
*/
static void addGlyph(char *glyphName) {
int len = strlen(glyphName) ;
char *startOfAdd = 0 ;
if (len + glyphSizeUsed + 3 > extraGlyphSize) {
extraGlyphSize = 2 * (extraGlyphSize + len + 100) ;
extraGlyphSpace = (char *) xrealloc(extraGlyphSpace, extraGlyphSize) ;
}
extraGlyphs = extraGlyphSpace ;
if (glyphSizeUsed == 0) {
startOfAdd = extraGlyphs + glyphSizeUsed ;
extraGlyphs[glyphSizeUsed++] = '/' ; /* leading / */
} else {
startOfAdd = extraGlyphs + glyphSizeUsed - 1 ;
}
strcpy(extraGlyphs + glyphSizeUsed, glyphName) ;
glyphSizeUsed += len ;
extraGlyphs[glyphSizeUsed++] = '/' ; /* trailing / */
extraGlyphs[glyphSizeUsed] = 0 ;
if (strstr(extraGlyphs, startOfAdd) != startOfAdd) { /* already there! */
glyphSizeUsed = startOfAdd - extraGlyphs + 1 ; /* kill the second copy */
extraGlyphs[glyphSizeUsed] = 0 ;
}
}
#endif
/*
* Download a PostScript font, using partial font downloading if
* necessary.
*/
extern char *downloadedpsname[];
void downpsfont P2C(charusetype *, p, charusetype *, all)
{
#ifdef DOWNLOAD_USING_PDFTEX
static unsigned char grid[256];
#endif
int GridCount ;
register int b;
register halfword bit ;
register chardesctype *c ;
struct resfont *rf ;
int cc;
extern char *realnameoffile ;
int j;
curfnt = p->fd ;
rf = curfnt->resfont ;
if (rf == 0 || rf->Fontfile == NULL)
return ;
for (; all->fd; all++)
if (all->fd->resfont &&
strcmp(rf->PSname, all->fd->resfont->PSname) == 0)
break ;
if (all != p)
return ;
if (rf->sent == 2) /* sent as header, from a PS file */
return ;
for (j=0; downloadedpsname[j] && j < DOWNLOADEDPSSIZE; j++) {
if (strcmp (downloadedpsname[j], rf->PSname) == 0)
return;
}
if (all->fd == 0)
error("! internal error in downpsfont") ;
if (!partialdownload) {
infont = all->fd->resfont->PSname ;
copyfile(all->fd->resfont->Fontfile);
infont = 0 ;
return;
}
for (cc=0; cc<256; cc++)
grid[cc] = 0 ;
#ifdef DOWNLOAD_USING_PDFTEX
clearExtraGlyphList() ;
#endif
for (; all->fd; all++) {
if (all->fd->resfont == 0 ||
strcmp(rf->PSname, all->fd->resfont->PSname))
continue ;
curfnt = all->fd ;
#ifdef DOWNLOAD_USING_PDFTEX
if (curfnt->resfont->Vectfile) {
char **glyphs = getEncoding(curfnt->resfont->Vectfile) ;
c = curfnt->chardesc + 255 ;
cc = 255 ;
for (b=15; b>=0; b--) {
for (bit=1; bit; bit<<=1) {
if (all->bitmap[b] & bit) {
addGlyph(glyphs[cc]) ;
}
c-- ;
cc-- ;
}
}
} else {
#endif
c = curfnt->chardesc + 255 ;
cc = 255 ;
for (b=15; b>=0; b--) {
for (bit=1; bit; bit<<=1) {
if (all->bitmap[b] & bit) {
grid[cc]=1;
}
c-- ;
cc-- ;
}
}
#ifdef DOWNLOAD_USING_PDFTEX
}
#endif
}
for (GridCount=0,cc=0; cc<256; cc++) {
/* tmpgrid[cc]=grid[cc]; */
if(grid[cc] ==1) {
GridCount++;
}
}
if(GridCount!=0 || extraGlyphs) {
newline() ;
if (! disablecomments)
(void)fprintf(bitfile, "%%%%BeginFont: %s\n", rf->PSname);
#ifdef DOWNLOAD_USING_PDFTEX
if (!t1_subset_2(rf->Fontfile, grid, extraGlyphs))
#else
if(FontPart(bitfile, rf->Fontfile, rf->Vectfile) < 0)
#endif
exit(1);
if (!quiet) {
if (strlen(realnameoffile) + prettycolumn > STDOUTSIZE) {
fprintf(stderr, "\n") ;
prettycolumn = 0 ;
}
(void)fprintf(stderr, "<%s>", realnameoffile);
prettycolumn += strlen(realnameoffile) + 2 ;
}
if (! disablecomments)
(void)fprintf(bitfile, "%%%%EndFont \n");
}
}
void dopsfont P1C(sectiontype *, fs)
{
charusetype *cu ;
cu = (charusetype *) (fs + 1) ;
#ifdef DOWNLOAD_USING_PDFTEX
while (cu->fd) {
if (cu->psfused)
cu->fd->psflag = EXISTS ;
downpsfont(cu++, (charusetype *)(fs + 1)) ;
}
#else
line = getmem(BUFSIZ);
tmpline=line;
while (cu->fd) {
if (cu->psfused)
cu->fd->psflag = EXISTS ;
downpsfont(cu++, (charusetype *)(fs + 1)) ;
}
loadbase = ~FLG_LOAD_BASE;
FirstCharB=UnDefineChars(FirstCharB);
free(tmpline);
#endif
}
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