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authorJonathan Kew <jfkthame@googlemail.com>2006-09-29 15:15:10 +0000
committerJonathan Kew <jfkthame@googlemail.com>2006-09-29 15:15:10 +0000
commit387cf3625583fb046baf756f72f188924f35cfe2 (patch)
tree6e09f2e03b9c590a9f14689dfdb4d77ed66e773d /Build/source/texk/xdvipdfmx/src/pdfencoding.h
parentfe77ff4cdab25604b424a273c726920830f63abc (diff)
adding xdvipdfmx sources
git-svn-id: svn://tug.org/texlive/trunk@2220 c570f23f-e606-0410-a88d-b1316a301751
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+/* $Header: /home/cvsroot/dvipdfmx/src/pdfencoding.h,v 1.3 2005/06/08 11:18:37 hirata Exp $
+
+ This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
+
+ Copyright (C) 2002 by Jin-Hwan Cho and Shunsaku Hirata,
+ the dvipdfmx project team <dvipdfmx@project.ktug.or.kr>
+
+ Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
+
+ This program 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.
+
+ This program 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+*/
+
+#ifndef _PDFENCODING_H_
+#define _PDFENCODING_H_
+
+#include "pdfobj.h"
+
+extern void pdf_encoding_set_verbose (void);
+
+extern void pdf_init_encodings (void);
+extern void pdf_close_encodings (void);
+
+/* enc_name here is .enc file name or the name of predefined
+ * encodings.
+ */
+extern int pdf_encoding_findresource (const char *enc_name);
+
+/* Returns indirect reference to Encoding resource.
+ */
+extern pdf_obj *pdf_get_encoding_reference (int enc_id);
+
+extern int pdf_encoding_is_ASL_charset (int enc_id);
+extern int pdf_encoding_is_predefined (int enc_id);
+
+/* WARNING:
+ * Pointer(s) may change after another encoding is loaded.
+ */
+extern char *pdf_encoding_get_name (int enc_id);
+extern char **pdf_encoding_get_encoding (int enc_id);
+
+/*
+ * The last argument "is_used" is 256 char array, value 0
+ * indicates glyph in that slot is not used in the document
+ * (at least for that font). We need this to handle the
+ * situation that the encoding contains, e.g., 30 rarely
+ * used glyphs without Unicode mapping and 200+ glyphs with
+ * Unicode mapping.
+ * pdf_create_ToUnicode_CMap() returns stream object but not
+ * reference. This need to be renamed to other name like
+ * pdf_create_ToUnicode_stream().
+ */
+extern pdf_obj *pdf_create_ToUnicode_CMap (const char *enc_name,
+ char **enc_vec, char *is_used);
+
+/* Add /ToUnicode entry with indirect reference to ToUnicode stream
+ * to font dictionary "fontdict". This creates an empty stream object
+ * if it has not already created. Generation of actual ToUnicode CMap
+ * data is delayed until pdf_close_encodings(). This also check if
+ * glyphs can be converted to (a sequence of) Unicode and returns -1
+ * if more than 10% of glyphs can't be converted. ToUnicode CMap is
+ * not attached in that case.
+ */
+extern int pdf_attach_ToUnicode_CMap (pdf_obj *fontdict,
+ int encoding_id, char *is_used);
+
+/* Just load CMap identified with 'ident'. (parsed)
+ * PDF stream object (not reference) returned.
+ */
+extern pdf_obj *pdf_load_ToUnicode_stream (const char *ident);
+
+#endif /* _PDFENCODINGS_H_ */