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/* epdf.c
Copyright 1996-2006 Han The Thanh <thanh@pdftex.org>
Copyright 2006-2009 Taco Hoekwater <taco@luatex.org>
This file is part of LuaTeX.
LuaTeX 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.
LuaTeX 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 Lesser General Public
License for more details.
You should have received a copy of the GNU General Public License along
with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */
#include "ptexlib.h"
#include <kpathsea/c-vararg.h>
#include <kpathsea/c-proto.h>
#include <string.h>
static const char _svn_version[] =
"$Id: epdf.c 2331 2009-04-18 16:39:50Z hhenkel $ "
"$URL: http://scm.foundry.supelec.fr/svn/luatex/trunk/source/texk/web2c/luatexdir/image/epdf.c $";
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 = pdf_new_objnum();
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;
}
/***********************************************************************
* 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, but without blanks between them, like: /a/b/c
***********************************************************************/
void epdf_mark_glyphs(fd_entry * fd, char *charset)
{
char *p, *q, *s;
char *glyph;
void **aa;
if (charset == NULL)
return;
assert(fd != NULL);
for (s = charset + 1, q = charset + strlen(charset); s < q; s = p + 1) {
for (p = s; *p != '\0' && *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 epdf_free(void)
{
epdf_check_mem();
}
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