pdc_bool
pdf_get_metrics_tt(PDF *p, pdf_font *font, const char *fontname,
pdc_encoding enc, const char *filename)
{
pdc_bool logg1 = pdc_logg_is_enabled(p->pdc, 1, trc_font);
pdc_bool logg2 = pdc_logg_is_enabled(p->pdc, 2, trc_font);
int filesize = 0;
double kbfilesize = 0;
int foundglyphs, flags = 0;
tt_file *ttf;
pdc_bool retval;
pdc_encoding enc_req;
pdc_encodingvector *ev = NULL;
pdc_bool isotf;
int errcode = 0;
(void) logg2;
/*
* Initialisation
*/
ttf = fnt_new_tt(p->pdc, &font->ft);
ttf->filename = filename;
ttf->fontname = fontname;
ttf->verbose = font->verbose;
ttf->incore = pdc_true;
ttf->monospace = font->opt.monospace;
filesize = font->ft.filelen;
kbfilesize = filesize / 1024.0;
/*
* Read font file
*/
retval = fnt_read_tt(ttf);
if (retval == pdc_false)
goto PDF_TRUETYPE_ERROR2;
/*
* Font type
*/
if (ttf->tab_CFF_)
{
isotf = pdc_true;
font->ft.m.type = fnt_Type1C;
font->cff_offset = (long) ttf->tab_CFF_->offset;
font->cff_length = ttf->tab_CFF_->length;
}
else
{
isotf = pdc_false;
font->ft.m.type = fnt_TrueType;
TT_IOCHECK(ttf, tt_tag2idx(ttf, fnt_str_glyf) != -1);
TT_IOCHECK(ttf, tt_tag2idx(ttf, fnt_str_loca) != -1);
}
/* Number of Glyphs */
if (ttf->numGlyphs <= 1)
{
errcode = FNT_E_TT_NOGLYFDESC;
goto PDF_TRUETYPE_ERROR1;
}
/*
* Encoding
*/
if (isotf)
{
/* OpenType font with CFF table */
if (ttf->charcoll != cc_none)
{
/* CID font */
if (font->ft.m.charcoll != cc_none)
{
if (!ttf->regisadobe)
{
errcode = PDF_E_CJK_UNSUPP_REGISTRY;
goto PDF_TRUETYPE_ERROR1;
}
if (font->ft.m.charcoll != ttf->charcoll)
{
errcode = PDF_E_CJK_UNSUPP_CHARCOLL;
goto PDF_TRUETYPE_ERROR1;
}
if (font->outcmapname != NULL)
enc = pdc_cid;
if (logg1)
pdc_logg(p->pdc, "\tCID font ordering: \"%s\"\n",
fnt_get_ordering_cid(ttf->charcoll));
}
else if (enc == pdc_unicode || enc == pdc_glyphid)
{
font->ft.m.charcoll = ttf->charcoll;
font->supplement = ttf->supplement;
}
else
{
errcode = PDF_E_FONT_ONLY_CMAP;
goto PDF_TRUETYPE_ERROR1;
}
}
else if (font->ft.m.charcoll != cc_none)
{
/* SID font */
errcode = PDF_E_FONT_UNSUPP_CMAP;
goto PDF_TRUETYPE_ERROR1;
}
}
else
{
if (font->ft.m.charcoll != cc_none)
{
int i;
pdc_bool iscjk = pdc_false;
for (i = 0; i < PDC_NUMCHARCOLL; i++)
{
if (ttf->tab_OS_2->charcolls[i])
iscjk = pdc_true;
if (ttf->tab_OS_2->charcolls[i] == font->ft.m.charcoll)
break;
}
if (i == PDC_NUMCHARCOLL)
{
if (iscjk)
{
/* CJK font */
errcode = PDF_E_CJK_UNSUPP_CHARCOLL;
goto PDF_TRUETYPE_ERROR1;
}
else
{
/* no CJK font */
errcode = PDF_E_FONT_UNSUPP_CMAP;
goto PDF_TRUETYPE_ERROR1;
}
}
else
{
if (font->outcmapname != NULL)
{
ttf->charcoll = font->ft.m.charcoll;
enc = pdc_cid;
}
}
}
}
/* encoding vector */
enc_req = fnt_get_tt_encoding_key(ttf, enc);
if (enc_req == pdc_invalidenc)
{
errcode = FNT_E_TT_BADCMAP;
goto PDF_TRUETYPE_ERROR1;
}
else if (enc_req != enc)
{
if (strcmp(font->encapiname, "auto"))
{
pdc_warning(p->pdc, PDF_E_FONT_FORCEENC,
pdf_get_encoding_name(p, enc_req, NULL),
0, 0, 0);
}
enc = enc_req;
}
if (enc >= 0)
ev = pdc_get_encoding_vector(p->pdc, enc);
font->ft.enc = enc;
font->ft.issymbfont = ttf->issymbol;
font->hasnomac = !ttf->tab_cmap || !ttf->tab_cmap->mac;
/* builtin encoding */
if (enc == pdc_builtin)
{
if (font->ft.issymbfont == pdc_false)
{
errcode = PDF_E_FONT_BADENC;
goto PDF_TRUETYPE_ERROR1;
}
else
{
/* encoding vector for builtin */
ev = pdf_create_font_encoding(p, enc, font, fontname, pdc_true);
font->symenc = font->ft.enc;
}
}
{
/* optimizing PDF output */
if (enc == pdc_ebcdic ||
enc == pdc_ebcdic_37 ||
enc == pdc_ebcdic_winansi)
font->towinansi = pdc_winansi;
}
/* /FontName in FontDescriptor */
font->ft.m.name = pdc_strdup(p->pdc, ttf->tab_name->englishname4);
/* /BaseFont name */
font->ft.name = pdc_strdup(p->pdc, ttf->tab_name->englishname6);
#define PDF_RESTRICTED_TT_EMBEDDING 0x02
/* check embedding flags */
if ((font->opt.embedding) && ttf->tab_OS_2 &&
ttf->tab_OS_2->fsType == PDF_RESTRICTED_TT_EMBEDDING)
{
errcode = FNT_E_TT_EMBED;
goto PDF_TRUETYPE_ERROR1;
}
if (logg1)
{
pdc_logg(p->pdc,
"\tFull font name: \"%s\"\n"
"\tPostScript font name: \"%s\"\n"
"\tFont embedding: %s\n"
"\tVertical font: %s\n",
font->ft.name, font->ft.m.name,
PDC_BOOLSTR(font->opt.embedding),
PDC_BOOLSTR(font->ft.vertical));
if (ttf->tab_name->producer != NULL)
pdc_logg(p->pdc, "\tFont producer: \"%s\"\n",
ttf->tab_name->producer);
pdc_logg(p->pdc, "\tNumber of Glyphs: %d\n", ttf->numGlyphs);
}
/* Save font values */
fnt_set_tt_fontvalues(ttf);
/* Flags for creating font arrays */
flags = TT_FONT_code2gid | TT_FONT_m_widths;
/* Create font mapping and width arrays */
foundglyphs = fnt_set_tt_fontarrays(ttf, flags);
/***********************************/
if (font->symenc != pdc_invalidenc)
font->ft.enc = pdc_builtin;
/***********************************/
if (!foundglyphs)
{
errcode = PDF_E_FONT_BADENC;
goto PDF_TRUETYPE_ERROR1;
}
fnt_delete_tt(ttf);
if (!pdf_make_fontflag(p, font))
return pdc_false;
return pdc_true;
PDF_TRUETYPE_ERROR1:
pdc_set_errmsg(p->pdc, errcode, 0, 0, 0, 0);
PDF_TRUETYPE_ERROR2:
fnt_delete_tt(ttf);
return pdc_false;
}
pdc_bool
pdf_process_metrics_data(
PDF *p,
pdf_font *font,
const char *fontname)
{
static const char fn[] = "pdf_process_metrics_data";
fnt_font_metric *ftm = &font->ft.m;
int width = 0;
pdc_ushort uv;
pdc_encoding enc = font->ft.enc;
pdc_encodingvector *ev = NULL;
int /* nalloc, */ foundglyphs = 0, i, j = 0, k;
(void) j;
/* Unallowed encoding */
if (enc == pdc_cid || enc < pdc_builtin)
{
pdc_set_errmsg(p->pdc, PDF_E_FONT_BADENC, 0, 0, 0, 0);
return pdc_false;
}
/* Determine the default character width (width of space character) */
if (font->opt.monospace)
{
ftm->defwidth = font->opt.monospace;
}
else
{
width = fnt_get_glyphwidth((int) PDF_DEFAULT_CHAR, &font->ft);
if (width != FNT_MISSING_WIDTH)
ftm->defwidth = width;
else
ftm->defwidth = FNT_DEFAULT_WIDTH;
}
/* builtin font */
if (font->ft.issymbfont == pdc_true && enc != pdc_builtin &&
!strcmp(font->encapiname, "auto"))
{
enc = pdc_builtin;
font->ft.enc = enc;
}
/* optimizing PDF output */
if (enc == pdc_ebcdic ||
enc == pdc_ebcdic_37 ||
enc == pdc_ebcdic_winansi)
font->towinansi = pdc_winansi;
/* glyph name list for incore fonts */
/* nalloc = font->ft.numglyphs + AFM_GLYPH_SUPPL; */
/*
* Generate character width according to the chosen encoding
*/
{
font->ft.numcodes = 256;
font->ft.code2gid = (pdc_ushort *) pdc_calloc(p->pdc,
font->ft.numcodes * sizeof (pdc_ushort), fn);
ftm->numwidths = font->ft.numcodes;
ftm->widths = (int *)pdc_calloc(p->pdc,
font->ft.numcodes * sizeof(int), fn);
/* Given 8-bit encoding */
if (enc >= 0)
{
ev = pdc_get_encoding_vector(p->pdc, enc);
for (k = 0; k < font->ft.numcodes; k++)
{
uv = ev->codes[k];
ftm->widths[k] = ftm->defwidth;
if (uv)
{
uv = pdc_get_alter_glyphname(uv, font->missingglyphs, NULL);
if (uv)
{
for (i = 0; i < ftm->numglwidths; i++)
{
if (ftm->glw[i].unicode == uv)
{
j = i + 1;
ftm->widths[k] = ftm->glw[i].width;
font->ft.code2gid[k] = (pdc_ushort) j;
foundglyphs++;
}
}
}
}
}
if (ftm->ciw != NULL)
{
pdc_free(p->pdc, ftm->ciw);
ftm->ciw = NULL;
}
pdc_logg_cond(p->pdc, 2, trc_font,
"\t\t%d glyphs could be mapped to Unicode\n", foundglyphs);
/* No characters found */
if (!foundglyphs)
{
if (font->ft.issymbfont == pdc_false)
{
pdc_set_errmsg(p->pdc, PDF_E_FONT_BADENC, 0, 0, 0, 0);
return pdc_false;
}
else
{
/* We enforce builtin encoding */
pdc_warning(p->pdc, PDF_E_FONT_FORCEENC,
pdf_get_encoding_name(p, pdc_builtin, font),
0, 0, 0);
enc = pdc_builtin;
font->ft.enc = enc;
font->towinansi = pdc_invalidenc;
}
}
else if (foundglyphs < PDF_MIN_GLYPHS)
{
pdc_warning(p->pdc, PDF_E_FONT_INAPPROPENC,
pdc_errprintf(p->pdc, "%d", foundglyphs), 0, 0, 0);
}
}
/* built-in encoding */
if (enc == pdc_builtin)
{
if (ftm->glw == NULL)
{
pdc_set_errmsg(p->pdc, PDF_E_FONT_BADENC, 0, 0, 0, 0);
return pdc_false;
}
/* encoding for builtin */
ev = pdf_create_font_encoding(p, enc, font, fontname, pdc_true);
font->symenc = font->ft.enc;
/***************************/
font->ft.enc = pdc_builtin;
/***************************/
for (i = 0; i < font->ft.numcodes; i++)
{
ftm->widths[i] = ftm->defwidth;
}
for (i = 0; i < font->ft.numglyphs; i++)
{
pdc_short code = ftm->glw[i].code;
if (code >= 0 && code < font->ft.numcodes)
{
j = i + 1;
ftm->widths[code] = ftm->glw[i].width;
font->ft.code2gid[code] = (pdc_ushort) j;
if (ev != NULL)
{
ev->codes[code] = ftm->glw[i].unicode;
}
}
}
}
}
if (ftm->glw != NULL)
{
pdc_free(p->pdc, ftm->glw);
ftm->glw = NULL;
}
return pdc_true;
}
