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1 /***************************************************************************/ | |
2 /* */ | |
3 /* cidobjs.c */ | |
4 /* */ | |
5 /* CID objects manager (body). */ | |
6 /* */ | |
7 /* Copyright 1996-2006, 2008, 2010-2011, 2013 by */ | |
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
9 /* */ | |
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. */ | |
15 /* */ | |
16 /***************************************************************************/ | |
17 | |
18 | |
19 #include "../../include/ft2build.h" | |
20 #include "../../include/freetype/internal/ftdebug.h" | |
21 #include "../../include/freetype/internal/ftstream.h" | |
22 | |
23 #include "cidgload.h" | |
24 #include "cidload.h" | |
25 | |
26 #include "../../include/freetype/internal/services/svpscmap.h" | |
27 #include "../../include/freetype/internal/psaux.h" | |
28 #include "../../include/freetype/internal/pshints.h" | |
29 | |
30 #include "ciderrs.h" | |
31 | |
32 | |
33 /*************************************************************************/ | |
34 /* */ | |
35 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ | |
36 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ | |
37 /* messages during execution. */ | |
38 /* */ | |
39 #undef FT_COMPONENT | |
40 #define FT_COMPONENT trace_cidobjs | |
41 | |
42 | |
43 /*************************************************************************/ | |
44 /* */ | |
45 /* SLOT FUNCTIONS */ | |
46 /* */ | |
47 /*************************************************************************/ | |
48 | |
49 FT_LOCAL_DEF( void ) | |
50 cid_slot_done( FT_GlyphSlot slot ) | |
51 { | |
52 slot->internal->glyph_hints = 0; | |
53 } | |
54 | |
55 | |
56 FT_LOCAL_DEF( FT_Error ) | |
57 cid_slot_init( FT_GlyphSlot slot ) | |
58 { | |
59 CID_Face face; | |
60 PSHinter_Service pshinter; | |
61 | |
62 | |
63 face = (CID_Face)slot->face; | |
64 pshinter = (PSHinter_Service)face->pshinter; | |
65 | |
66 if ( pshinter ) | |
67 { | |
68 FT_Module module; | |
69 | |
70 | |
71 module = FT_Get_Module( slot->face->driver->root.library, | |
72 "pshinter" ); | |
73 if ( module ) | |
74 { | |
75 T1_Hints_Funcs funcs; | |
76 | |
77 | |
78 funcs = pshinter->get_t1_funcs( module ); | |
79 slot->internal->glyph_hints = (void*)funcs; | |
80 } | |
81 } | |
82 | |
83 return 0; | |
84 } | |
85 | |
86 | |
87 /*************************************************************************/ | |
88 /* */ | |
89 /* SIZE FUNCTIONS */ | |
90 /* */ | |
91 /*************************************************************************/ | |
92 | |
93 | |
94 static PSH_Globals_Funcs | |
95 cid_size_get_globals_funcs( CID_Size size ) | |
96 { | |
97 CID_Face face = (CID_Face)size->root.face; | |
98 PSHinter_Service pshinter = (PSHinter_Service)face->pshinter; | |
99 FT_Module module; | |
100 | |
101 | |
102 module = FT_Get_Module( size->root.face->driver->root.library, | |
103 "pshinter" ); | |
104 return ( module && pshinter && pshinter->get_globals_funcs ) | |
105 ? pshinter->get_globals_funcs( module ) | |
106 : 0; | |
107 } | |
108 | |
109 | |
110 FT_LOCAL_DEF( void ) | |
111 cid_size_done( FT_Size cidsize ) /* CID_Size */ | |
112 { | |
113 CID_Size size = (CID_Size)cidsize; | |
114 | |
115 | |
116 if ( cidsize->internal ) | |
117 { | |
118 PSH_Globals_Funcs funcs; | |
119 | |
120 | |
121 funcs = cid_size_get_globals_funcs( size ); | |
122 if ( funcs ) | |
123 funcs->destroy( (PSH_Globals)cidsize->internal ); | |
124 | |
125 cidsize->internal = 0; | |
126 } | |
127 } | |
128 | |
129 | |
130 FT_LOCAL_DEF( FT_Error ) | |
131 cid_size_init( FT_Size cidsize ) /* CID_Size */ | |
132 { | |
133 CID_Size size = (CID_Size)cidsize; | |
134 FT_Error error = FT_Err_Ok; | |
135 PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size ); | |
136 | |
137 | |
138 if ( funcs ) | |
139 { | |
140 PSH_Globals globals; | |
141 CID_Face face = (CID_Face)cidsize->face; | |
142 CID_FaceDict dict = face->cid.font_dicts + face->root.face_index; | |
143 PS_Private priv = &dict->private_dict; | |
144 | |
145 | |
146 error = funcs->create( cidsize->face->memory, priv, &globals ); | |
147 if ( !error ) | |
148 cidsize->internal = (FT_Size_Internal)(void*)globals; | |
149 } | |
150 | |
151 return error; | |
152 } | |
153 | |
154 | |
155 FT_LOCAL( FT_Error ) | |
156 cid_size_request( FT_Size size, | |
157 FT_Size_Request req ) | |
158 { | |
159 PSH_Globals_Funcs funcs; | |
160 | |
161 | |
162 FT_Request_Metrics( size->face, req ); | |
163 | |
164 funcs = cid_size_get_globals_funcs( (CID_Size)size ); | |
165 | |
166 if ( funcs ) | |
167 funcs->set_scale( (PSH_Globals)size->internal, | |
168 size->metrics.x_scale, | |
169 size->metrics.y_scale, | |
170 0, 0 ); | |
171 | |
172 return FT_Err_Ok; | |
173 } | |
174 | |
175 | |
176 /*************************************************************************/ | |
177 /* */ | |
178 /* FACE FUNCTIONS */ | |
179 /* */ | |
180 /*************************************************************************/ | |
181 | |
182 /*************************************************************************/ | |
183 /* */ | |
184 /* <Function> */ | |
185 /* cid_face_done */ | |
186 /* */ | |
187 /* <Description> */ | |
188 /* Finalizes a given face object. */ | |
189 /* */ | |
190 /* <Input> */ | |
191 /* face :: A pointer to the face object to destroy. */ | |
192 /* */ | |
193 FT_LOCAL_DEF( void ) | |
194 cid_face_done( FT_Face cidface ) /* CID_Face */ | |
195 { | |
196 CID_Face face = (CID_Face)cidface; | |
197 FT_Memory memory; | |
198 CID_FaceInfo cid; | |
199 PS_FontInfo info; | |
200 | |
201 | |
202 if ( !face ) | |
203 return; | |
204 | |
205 cid = &face->cid; | |
206 info = &cid->font_info; | |
207 memory = cidface->memory; | |
208 | |
209 /* release subrs */ | |
210 if ( face->subrs ) | |
211 { | |
212 FT_Int n; | |
213 | |
214 | |
215 for ( n = 0; n < cid->num_dicts; n++ ) | |
216 { | |
217 CID_Subrs subr = face->subrs + n; | |
218 | |
219 | |
220 if ( subr->code ) | |
221 { | |
222 FT_FREE( subr->code[0] ); | |
223 FT_FREE( subr->code ); | |
224 } | |
225 } | |
226 | |
227 FT_FREE( face->subrs ); | |
228 } | |
229 | |
230 /* release FontInfo strings */ | |
231 FT_FREE( info->version ); | |
232 FT_FREE( info->notice ); | |
233 FT_FREE( info->full_name ); | |
234 FT_FREE( info->family_name ); | |
235 FT_FREE( info->weight ); | |
236 | |
237 /* release font dictionaries */ | |
238 FT_FREE( cid->font_dicts ); | |
239 cid->num_dicts = 0; | |
240 | |
241 /* release other strings */ | |
242 FT_FREE( cid->cid_font_name ); | |
243 FT_FREE( cid->registry ); | |
244 FT_FREE( cid->ordering ); | |
245 | |
246 cidface->family_name = 0; | |
247 cidface->style_name = 0; | |
248 | |
249 FT_FREE( face->binary_data ); | |
250 FT_FREE( face->cid_stream ); | |
251 } | |
252 | |
253 | |
254 /*************************************************************************/ | |
255 /* */ | |
256 /* <Function> */ | |
257 /* cid_face_init */ | |
258 /* */ | |
259 /* <Description> */ | |
260 /* Initializes a given CID face object. */ | |
261 /* */ | |
262 /* <Input> */ | |
263 /* stream :: The source font stream. */ | |
264 /* */ | |
265 /* face_index :: The index of the font face in the resource. */ | |
266 /* */ | |
267 /* num_params :: Number of additional generic parameters. Ignored. */ | |
268 /* */ | |
269 /* params :: Additional generic parameters. Ignored. */ | |
270 /* */ | |
271 /* <InOut> */ | |
272 /* face :: The newly built face object. */ | |
273 /* */ | |
274 /* <Return> */ | |
275 /* FreeType error code. 0 means success. */ | |
276 /* */ | |
277 FT_LOCAL_DEF( FT_Error ) | |
278 cid_face_init( FT_Stream stream, | |
279 FT_Face cidface, /* CID_Face */ | |
280 FT_Int face_index, | |
281 FT_Int num_params, | |
282 FT_Parameter* params ) | |
283 { | |
284 CID_Face face = (CID_Face)cidface; | |
285 FT_Error error; | |
286 PSAux_Service psaux; | |
287 PSHinter_Service pshinter; | |
288 | |
289 FT_UNUSED( num_params ); | |
290 FT_UNUSED( params ); | |
291 FT_UNUSED( stream ); | |
292 | |
293 | |
294 cidface->num_faces = 1; | |
295 | |
296 psaux = (PSAux_Service)face->psaux; | |
297 if ( !psaux ) | |
298 { | |
299 psaux = (PSAux_Service)FT_Get_Module_Interface( | |
300 FT_FACE_LIBRARY( face ), "psaux" ); | |
301 | |
302 if ( !psaux ) | |
303 { | |
304 FT_ERROR(( "cid_face_init: cannot access `psaux' module\n" )); | |
305 error = FT_THROW( Missing_Module ); | |
306 goto Exit; | |
307 } | |
308 | |
309 face->psaux = psaux; | |
310 } | |
311 | |
312 pshinter = (PSHinter_Service)face->pshinter; | |
313 if ( !pshinter ) | |
314 { | |
315 pshinter = (PSHinter_Service)FT_Get_Module_Interface( | |
316 FT_FACE_LIBRARY( face ), "pshinter" ); | |
317 | |
318 face->pshinter = pshinter; | |
319 } | |
320 | |
321 FT_TRACE2(( "CID driver\n" )); | |
322 | |
323 /* open the tokenizer; this will also check the font format */ | |
324 if ( FT_STREAM_SEEK( 0 ) ) | |
325 goto Exit; | |
326 | |
327 error = cid_face_open( face, face_index ); | |
328 if ( error ) | |
329 goto Exit; | |
330 | |
331 /* if we just wanted to check the format, leave successfully now */ | |
332 if ( face_index < 0 ) | |
333 goto Exit; | |
334 | |
335 /* check the face index */ | |
336 /* XXX: handle CID fonts with more than a single face */ | |
337 if ( face_index != 0 ) | |
338 { | |
339 FT_ERROR(( "cid_face_init: invalid face index\n" )); | |
340 error = FT_THROW( Invalid_Argument ); | |
341 goto Exit; | |
342 } | |
343 | |
344 /* now load the font program into the face object */ | |
345 | |
346 /* initialize the face object fields */ | |
347 | |
348 /* set up root face fields */ | |
349 { | |
350 CID_FaceInfo cid = &face->cid; | |
351 PS_FontInfo info = &cid->font_info; | |
352 | |
353 | |
354 cidface->num_glyphs = cid->cid_count; | |
355 cidface->num_charmaps = 0; | |
356 | |
357 cidface->face_index = face_index; | |
358 cidface->face_flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */ | |
359 FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ | |
360 FT_FACE_FLAG_HINTER; /* has native hinter */ | |
361 | |
362 if ( info->is_fixed_pitch ) | |
363 cidface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; | |
364 | |
365 /* XXX: TODO: add kerning with .afm support */ | |
366 | |
367 /* get style name -- be careful, some broken fonts only */ | |
368 /* have a /FontName dictionary entry! */ | |
369 cidface->family_name = info->family_name; | |
370 /* assume "Regular" style if we don't know better */ | |
371 cidface->style_name = (char *)"Regular"; | |
372 if ( cidface->family_name ) | |
373 { | |
374 char* full = info->full_name; | |
375 char* family = cidface->family_name; | |
376 | |
377 | |
378 if ( full ) | |
379 { | |
380 while ( *full ) | |
381 { | |
382 if ( *full == *family ) | |
383 { | |
384 family++; | |
385 full++; | |
386 } | |
387 else | |
388 { | |
389 if ( *full == ' ' || *full == '-' ) | |
390 full++; | |
391 else if ( *family == ' ' || *family == '-' ) | |
392 family++; | |
393 else | |
394 { | |
395 if ( !*family ) | |
396 cidface->style_name = full; | |
397 break; | |
398 } | |
399 } | |
400 } | |
401 } | |
402 } | |
403 else | |
404 { | |
405 /* do we have a `/FontName'? */ | |
406 if ( cid->cid_font_name ) | |
407 cidface->family_name = cid->cid_font_name; | |
408 } | |
409 | |
410 /* compute style flags */ | |
411 cidface->style_flags = 0; | |
412 if ( info->italic_angle ) | |
413 cidface->style_flags |= FT_STYLE_FLAG_ITALIC; | |
414 if ( info->weight ) | |
415 { | |
416 if ( !ft_strcmp( info->weight, "Bold" ) || | |
417 !ft_strcmp( info->weight, "Black" ) ) | |
418 cidface->style_flags |= FT_STYLE_FLAG_BOLD; | |
419 } | |
420 | |
421 /* no embedded bitmap support */ | |
422 cidface->num_fixed_sizes = 0; | |
423 cidface->available_sizes = 0; | |
424 | |
425 cidface->bbox.xMin = cid->font_bbox.xMin >> 16; | |
426 cidface->bbox.yMin = cid->font_bbox.yMin >> 16; | |
427 /* no `U' suffix here to 0xFFFF! */ | |
428 cidface->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFF ) >> 16; | |
429 cidface->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFF ) >> 16; | |
430 | |
431 if ( !cidface->units_per_EM ) | |
432 cidface->units_per_EM = 1000; | |
433 | |
434 cidface->ascender = (FT_Short)( cidface->bbox.yMax ); | |
435 cidface->descender = (FT_Short)( cidface->bbox.yMin ); | |
436 | |
437 cidface->height = (FT_Short)( ( cidface->units_per_EM * 12 ) / 10 ); | |
438 if ( cidface->height < cidface->ascender - cidface->descender ) | |
439 cidface->height = (FT_Short)( cidface->ascender - cidface->descender ); | |
440 | |
441 cidface->underline_position = (FT_Short)info->underline_position; | |
442 cidface->underline_thickness = (FT_Short)info->underline_thickness; | |
443 } | |
444 | |
445 Exit: | |
446 return error; | |
447 } | |
448 | |
449 | |
450 /*************************************************************************/ | |
451 /* */ | |
452 /* <Function> */ | |
453 /* cid_driver_init */ | |
454 /* */ | |
455 /* <Description> */ | |
456 /* Initializes a given CID driver object. */ | |
457 /* */ | |
458 /* <Input> */ | |
459 /* driver :: A handle to the target driver object. */ | |
460 /* */ | |
461 /* <Return> */ | |
462 /* FreeType error code. 0 means success. */ | |
463 /* */ | |
464 FT_LOCAL_DEF( FT_Error ) | |
465 cid_driver_init( FT_Module driver ) | |
466 { | |
467 FT_UNUSED( driver ); | |
468 | |
469 return FT_Err_Ok; | |
470 } | |
471 | |
472 | |
473 /*************************************************************************/ | |
474 /* */ | |
475 /* <Function> */ | |
476 /* cid_driver_done */ | |
477 /* */ | |
478 /* <Description> */ | |
479 /* Finalizes a given CID driver. */ | |
480 /* */ | |
481 /* <Input> */ | |
482 /* driver :: A handle to the target CID driver. */ | |
483 /* */ | |
484 FT_LOCAL_DEF( void ) | |
485 cid_driver_done( FT_Module driver ) | |
486 { | |
487 FT_UNUSED( driver ); | |
488 } | |
489 | |
490 | |
491 /* END */ | |
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