1 /***************************************************************************/
5 /* CFF character mapping table (cmap) support (body). */
7 /* Copyright 2002, 2003, 2004, 2005, 2006 by */
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
10 /* This file is part of the FreeType project, and may only be used, */
11 /* modified, and distributed under the terms of the FreeType project */
12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
13 /* this file you indicate that you have read the license and */
14 /* understand and accept it fully. */
16 /***************************************************************************/
25 /*************************************************************************/
26 /*************************************************************************/
28 /***** CFF STANDARD (AND EXPERT) ENCODING CMAPS *****/
30 /*************************************************************************/
31 /*************************************************************************/
33 FT_CALLBACK_DEF( FT_Error )
34 cff_cmap_encoding_init( CFF_CMapStd cmap )
36 TT_Face face = (TT_Face)FT_CMAP_FACE( cmap );
37 CFF_Font cff = (CFF_Font)face->extra.data;
38 CFF_Encoding encoding = &cff->encoding;
41 cmap->gids = encoding->codes;
47 FT_CALLBACK_DEF( void )
48 cff_cmap_encoding_done( CFF_CMapStd cmap )
54 FT_CALLBACK_DEF( FT_UInt )
55 cff_cmap_encoding_char_index( CFF_CMapStd cmap,
61 if ( char_code < 256 )
62 result = cmap->gids[char_code];
68 FT_CALLBACK_DEF( FT_UInt )
69 cff_cmap_encoding_char_next( CFF_CMapStd cmap,
70 FT_UInt32 *pchar_code )
73 FT_UInt32 char_code = *pchar_code;
78 if ( char_code < 255 )
80 FT_UInt code = (FT_UInt)(char_code + 1);
88 result = cmap->gids[code];
102 FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
103 cff_cmap_encoding_class_rec =
105 sizeof ( CFF_CMapStdRec ),
107 (FT_CMap_InitFunc) cff_cmap_encoding_init,
108 (FT_CMap_DoneFunc) cff_cmap_encoding_done,
109 (FT_CMap_CharIndexFunc)cff_cmap_encoding_char_index,
110 (FT_CMap_CharNextFunc) cff_cmap_encoding_char_next
114 /*************************************************************************/
115 /*************************************************************************/
117 /***** CFF SYNTHETIC UNICODE ENCODING CMAP *****/
119 /*************************************************************************/
120 /*************************************************************************/
122 FT_CALLBACK_DEF( const char* )
123 cff_sid_to_glyph_name( TT_Face face,
126 CFF_Font cff = (CFF_Font)face->extra.data;
127 CFF_Charset charset = &cff->charset;
128 FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
129 FT_UInt sid = charset->sids[idx];
132 return cff_index_get_sid_string( &cff->string_index, sid, psnames );
136 FT_CALLBACK_DEF( void )
137 cff_sid_free_glyph_name( TT_Face face,
140 FT_Memory memory = FT_FACE_MEMORY( face );
147 FT_CALLBACK_DEF( FT_Error )
148 cff_cmap_unicode_init( PS_Unicodes unicodes )
150 TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes );
151 FT_Memory memory = FT_FACE_MEMORY( face );
152 CFF_Font cff = (CFF_Font)face->extra.data;
153 CFF_Charset charset = &cff->charset;
154 FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
157 /* can't build Unicode map for CID-keyed font */
158 if ( !charset->sids )
159 return CFF_Err_Invalid_Argument;
161 return psnames->unicodes_init( memory,
164 (PS_GetGlyphNameFunc)&cff_sid_to_glyph_name,
165 (PS_FreeGlyphNameFunc)&cff_sid_free_glyph_name,
170 FT_CALLBACK_DEF( void )
171 cff_cmap_unicode_done( PS_Unicodes unicodes )
173 FT_Face face = FT_CMAP_FACE( unicodes );
174 FT_Memory memory = FT_FACE_MEMORY( face );
177 FT_FREE( unicodes->maps );
178 unicodes->num_maps = 0;
182 FT_CALLBACK_DEF( FT_UInt )
183 cff_cmap_unicode_char_index( PS_Unicodes unicodes,
184 FT_UInt32 char_code )
186 TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes );
187 CFF_Font cff = (CFF_Font)face->extra.data;
188 FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
191 return psnames->unicodes_char_index( unicodes, char_code );
195 FT_CALLBACK_DEF( FT_UInt )
196 cff_cmap_unicode_char_next( PS_Unicodes unicodes,
197 FT_UInt32 *pchar_code )
199 TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes );
200 CFF_Font cff = (CFF_Font)face->extra.data;
201 FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
204 return psnames->unicodes_char_next( unicodes, pchar_code );
208 FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
209 cff_cmap_unicode_class_rec =
211 sizeof ( PS_UnicodesRec ),
213 (FT_CMap_InitFunc) cff_cmap_unicode_init,
214 (FT_CMap_DoneFunc) cff_cmap_unicode_done,
215 (FT_CMap_CharIndexFunc)cff_cmap_unicode_char_index,
216 (FT_CMap_CharNextFunc) cff_cmap_unicode_char_next