1 /****************************************************************************
5 * Type 1 character map support (body).
7 * Copyright (C) 2002-2020 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.
21 #include <freetype/internal/ftdebug.h>
26 /*************************************************************************/
27 /*************************************************************************/
29 /***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/
31 /*************************************************************************/
32 /*************************************************************************/
35 t1_cmap_std_init( T1_CMapStd cmap,
38 T1_Face face = (T1_Face)FT_CMAP_FACE( cmap );
39 FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames;
42 cmap->num_glyphs = (FT_UInt)face->type1.num_glyphs;
43 cmap->glyph_names = (const char* const*)face->type1.glyph_names;
44 cmap->sid_to_string = psnames->adobe_std_strings;
45 cmap->code_to_sid = is_expert ? psnames->adobe_expert_encoding
46 : psnames->adobe_std_encoding;
48 FT_ASSERT( cmap->code_to_sid );
52 FT_CALLBACK_DEF( void )
53 t1_cmap_std_done( T1_CMapStd cmap )
56 cmap->glyph_names = NULL;
57 cmap->sid_to_string = NULL;
58 cmap->code_to_sid = NULL;
62 FT_CALLBACK_DEF( FT_UInt )
63 t1_cmap_std_char_index( T1_CMapStd cmap,
69 if ( char_code < 256 )
72 const char* glyph_name;
75 /* convert character code to Adobe SID string */
76 code = cmap->code_to_sid[char_code];
77 glyph_name = cmap->sid_to_string( code );
79 /* look for the corresponding glyph name */
80 for ( n = 0; n < cmap->num_glyphs; n++ )
82 const char* gname = cmap->glyph_names[n];
85 if ( gname && gname[0] == glyph_name[0] &&
86 ft_strcmp( gname, glyph_name ) == 0 )
98 FT_CALLBACK_DEF( FT_UInt32 )
99 t1_cmap_std_char_next( T1_CMapStd cmap,
100 FT_UInt32 *pchar_code )
103 FT_UInt32 char_code = *pchar_code + 1;
106 while ( char_code < 256 )
108 result = t1_cmap_std_char_index( cmap, char_code );
117 *pchar_code = char_code;
122 FT_CALLBACK_DEF( FT_Error )
123 t1_cmap_standard_init( T1_CMapStd cmap,
126 FT_UNUSED( pointer );
129 t1_cmap_std_init( cmap, 0 );
134 FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
135 t1_cmap_standard_class_rec =
137 sizeof ( T1_CMapStdRec ),
139 (FT_CMap_InitFunc) t1_cmap_standard_init, /* init */
140 (FT_CMap_DoneFunc) t1_cmap_std_done, /* done */
141 (FT_CMap_CharIndexFunc)t1_cmap_std_char_index, /* char_index */
142 (FT_CMap_CharNextFunc) t1_cmap_std_char_next, /* char_next */
144 (FT_CMap_CharVarIndexFunc) NULL, /* char_var_index */
145 (FT_CMap_CharVarIsDefaultFunc)NULL, /* char_var_default */
146 (FT_CMap_VariantListFunc) NULL, /* variant_list */
147 (FT_CMap_CharVariantListFunc) NULL, /* charvariant_list */
148 (FT_CMap_VariantCharListFunc) NULL /* variantchar_list */
152 FT_CALLBACK_DEF( FT_Error )
153 t1_cmap_expert_init( T1_CMapStd cmap,
156 FT_UNUSED( pointer );
159 t1_cmap_std_init( cmap, 1 );
163 FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
164 t1_cmap_expert_class_rec =
166 sizeof ( T1_CMapStdRec ),
168 (FT_CMap_InitFunc) t1_cmap_expert_init, /* init */
169 (FT_CMap_DoneFunc) t1_cmap_std_done, /* done */
170 (FT_CMap_CharIndexFunc)t1_cmap_std_char_index, /* char_index */
171 (FT_CMap_CharNextFunc) t1_cmap_std_char_next, /* char_next */
173 (FT_CMap_CharVarIndexFunc) NULL, /* char_var_index */
174 (FT_CMap_CharVarIsDefaultFunc)NULL, /* char_var_default */
175 (FT_CMap_VariantListFunc) NULL, /* variant_list */
176 (FT_CMap_CharVariantListFunc) NULL, /* charvariant_list */
177 (FT_CMap_VariantCharListFunc) NULL /* variantchar_list */
181 /*************************************************************************/
182 /*************************************************************************/
184 /***** TYPE1 CUSTOM ENCODING CMAP *****/
186 /*************************************************************************/
187 /*************************************************************************/
190 FT_CALLBACK_DEF( FT_Error )
191 t1_cmap_custom_init( T1_CMapCustom cmap,
194 T1_Face face = (T1_Face)FT_CMAP_FACE( cmap );
195 T1_Encoding encoding = &face->type1.encoding;
197 FT_UNUSED( pointer );
200 cmap->first = (FT_UInt)encoding->code_first;
201 cmap->count = (FT_UInt)encoding->code_last - cmap->first;
202 cmap->indices = encoding->char_index;
204 FT_ASSERT( cmap->indices );
205 FT_ASSERT( encoding->code_first <= encoding->code_last );
211 FT_CALLBACK_DEF( void )
212 t1_cmap_custom_done( T1_CMapCustom cmap )
214 cmap->indices = NULL;
220 FT_CALLBACK_DEF( FT_UInt )
221 t1_cmap_custom_char_index( T1_CMapCustom cmap,
222 FT_UInt32 char_code )
227 if ( ( char_code >= cmap->first ) &&
228 ( char_code < ( cmap->first + cmap->count ) ) )
229 result = cmap->indices[char_code];
235 FT_CALLBACK_DEF( FT_UInt32 )
236 t1_cmap_custom_char_next( T1_CMapCustom cmap,
237 FT_UInt32 *pchar_code )
240 FT_UInt32 char_code = *pchar_code;
245 if ( char_code < cmap->first )
246 char_code = cmap->first;
248 for ( ; char_code < ( cmap->first + cmap->count ); char_code++ )
250 result = cmap->indices[char_code];
258 *pchar_code = char_code;
263 FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
264 t1_cmap_custom_class_rec =
266 sizeof ( T1_CMapCustomRec ),
268 (FT_CMap_InitFunc) t1_cmap_custom_init, /* init */
269 (FT_CMap_DoneFunc) t1_cmap_custom_done, /* done */
270 (FT_CMap_CharIndexFunc)t1_cmap_custom_char_index, /* char_index */
271 (FT_CMap_CharNextFunc) t1_cmap_custom_char_next, /* char_next */
273 (FT_CMap_CharVarIndexFunc) NULL, /* char_var_index */
274 (FT_CMap_CharVarIsDefaultFunc)NULL, /* char_var_default */
275 (FT_CMap_VariantListFunc) NULL, /* variant_list */
276 (FT_CMap_CharVariantListFunc) NULL, /* charvariant_list */
277 (FT_CMap_VariantCharListFunc) NULL /* variantchar_list */
281 /*************************************************************************/
282 /*************************************************************************/
284 /***** TYPE1 SYNTHETIC UNICODE ENCODING CMAP *****/
286 /*************************************************************************/
287 /*************************************************************************/
289 FT_CALLBACK_DEF( const char * )
290 psaux_get_glyph_name( T1_Face face,
293 return face->type1.glyph_names[idx];
297 FT_CALLBACK_DEF( FT_Error )
298 t1_cmap_unicode_init( PS_Unicodes unicodes,
301 T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes );
302 FT_Memory memory = FT_FACE_MEMORY( face );
303 FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames;
305 FT_UNUSED( pointer );
308 if ( !psnames->unicodes_init )
309 return FT_THROW( Unimplemented_Feature );
311 return psnames->unicodes_init( memory,
313 (FT_UInt)face->type1.num_glyphs,
314 (PS_GetGlyphNameFunc)&psaux_get_glyph_name,
315 (PS_FreeGlyphNameFunc)NULL,
320 FT_CALLBACK_DEF( void )
321 t1_cmap_unicode_done( PS_Unicodes unicodes )
323 FT_Face face = FT_CMAP_FACE( unicodes );
324 FT_Memory memory = FT_FACE_MEMORY( face );
327 FT_FREE( unicodes->maps );
328 unicodes->num_maps = 0;
332 FT_CALLBACK_DEF( FT_UInt )
333 t1_cmap_unicode_char_index( PS_Unicodes unicodes,
334 FT_UInt32 char_code )
336 T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes );
337 FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames;
340 return psnames->unicodes_char_index( unicodes, char_code );
344 FT_CALLBACK_DEF( FT_UInt32 )
345 t1_cmap_unicode_char_next( PS_Unicodes unicodes,
346 FT_UInt32 *pchar_code )
348 T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes );
349 FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames;
352 return psnames->unicodes_char_next( unicodes, pchar_code );
356 FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
357 t1_cmap_unicode_class_rec =
359 sizeof ( PS_UnicodesRec ),
361 (FT_CMap_InitFunc) t1_cmap_unicode_init, /* init */
362 (FT_CMap_DoneFunc) t1_cmap_unicode_done, /* done */
363 (FT_CMap_CharIndexFunc)t1_cmap_unicode_char_index, /* char_index */
364 (FT_CMap_CharNextFunc) t1_cmap_unicode_char_next, /* char_next */
366 (FT_CMap_CharVarIndexFunc) NULL, /* char_var_index */
367 (FT_CMap_CharVarIsDefaultFunc)NULL, /* char_var_default */
368 (FT_CMap_VariantListFunc) NULL, /* variant_list */
369 (FT_CMap_CharVariantListFunc) NULL, /* charvariant_list */
370 (FT_CMap_VariantCharListFunc) NULL /* variantchar_list */