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/*
Copyright 1996-2019 Han The Thanh, <thanh@pdftex.org>
This file is part of pdfTeX.
pdfTeX is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
pdfTeX is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ptexlib.h"
#include <string.h>
int is_subsetable(fm_entry * fm)
{
assert(is_included(fm));
return is_subsetted(fm);
}
fd_entry *epdf_create_fontdescriptor(fm_entry * fm, int stemV)
{
fd_entry *fd;
if ((fd = lookup_fd_entry(fm->ff_name, fm->slant, fm->extend)) == NULL) {
fm->in_use = true;
fd = new_fd_entry();
fd->fm = fm;
register_fd_entry(fd);
fd->fd_objnum = pdfnewobjnum();
assert(fm->ps_name != NULL);
fd->fontname = xstrdup(fm->ps_name); /* just fallback */
// stemV must be copied
fd->font_dim[STEMV_CODE].val = stemV;
fd->font_dim[STEMV_CODE].set = true;
fd->gl_tree = avl_create(comp_string_entry, NULL, &avl_xallocator);
assert(fd->gl_tree != NULL);
}
return fd;
}
int get_fd_objnum(fd_entry * fd)
{
assert(fd->fd_objnum != 0);
return fd->fd_objnum;
}
int get_fn_objnum(fd_entry * fd)
{
if (fd->fn_objnum == 0)
fd->fn_objnum = pdfnewobjnum();
return fd->fn_objnum;
}
/***********************************************************************
* Mark glyphs used by embedded PDF file:
* 1. build fontdescriptor, if not yet existing
* 2. mark glyphs directly there
*
* Input charset from xpdf is a string of glyph names including
* leading slashes, with optional generic spaces, including tabs,
* \n, \r, and \f, preceding or between them:
/a/b/c or /a /b /c or /a/b /c, etc.
***********************************************************************/
#define Isgenericspace(c) (c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f')
void epdf_mark_glyphs(fd_entry * fd, char *charset)
{
char *p, *q, *s;
char *glyph;
void **aa;
if (charset == NULL)
return;
assert(fd != NULL);
while (Isgenericspace(*charset))
charset++;
for (s = charset + 1, q = charset + strlen(charset); s < q; s = p + 1) {
for (p = s; *p != '\0' && *p != '/' && !Isgenericspace(*p); p++);
if (Isgenericspace(*p)) {
*p = '\0';
p++;
while (Isgenericspace(*p))
p++;
}
*p = '\0';
if ((char *) avl_find(fd->gl_tree, s) == NULL) {
glyph = xstrdup(s);
aa = avl_probe(fd->gl_tree, glyph);
assert(aa != NULL);
}
}
}
void embed_whole_font(fd_entry * fd)
{
fd->all_glyphs = true;
}
void epdf_free(void)
{
epdf_check_mem();
}
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