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Sync with trunk r63383 .
[reactos.git] / lib / 3rdparty / freetype / src / cid / cidobjs.c
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 <ft2build.h>
20 #include FT_INTERNAL_DEBUG_H
21 #include FT_INTERNAL_STREAM_H
22
23 #include "cidgload.h"
24 #include "cidload.h"
25
26 #include FT_SERVICE_POSTSCRIPT_CMAPS_H
27 #include FT_INTERNAL_POSTSCRIPT_AUX_H
28 #include FT_INTERNAL_POSTSCRIPT_HINTS_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
359 cidface->face_flags |= FT_FACE_FLAG_SCALABLE | /* scalable outlines */
360 FT_FACE_FLAG_HORIZONTAL | /* horizontal data */
361 FT_FACE_FLAG_HINTER; /* has native hinter */
362
363 if ( info->is_fixed_pitch )
364 cidface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
365
366 /* XXX: TODO: add kerning with .afm support */
367
368 /* get style name -- be careful, some broken fonts only */
369 /* have a /FontName dictionary entry! */
370 cidface->family_name = info->family_name;
371 /* assume "Regular" style if we don't know better */
372 cidface->style_name = (char *)"Regular";
373 if ( cidface->family_name )
374 {
375 char* full = info->full_name;
376 char* family = cidface->family_name;
377
378
379 if ( full )
380 {
381 while ( *full )
382 {
383 if ( *full == *family )
384 {
385 family++;
386 full++;
387 }
388 else
389 {
390 if ( *full == ' ' || *full == '-' )
391 full++;
392 else if ( *family == ' ' || *family == '-' )
393 family++;
394 else
395 {
396 if ( !*family )
397 cidface->style_name = full;
398 break;
399 }
400 }
401 }
402 }
403 }
404 else
405 {
406 /* do we have a `/FontName'? */
407 if ( cid->cid_font_name )
408 cidface->family_name = cid->cid_font_name;
409 }
410
411 /* compute style flags */
412 cidface->style_flags = 0;
413 if ( info->italic_angle )
414 cidface->style_flags |= FT_STYLE_FLAG_ITALIC;
415 if ( info->weight )
416 {
417 if ( !ft_strcmp( info->weight, "Bold" ) ||
418 !ft_strcmp( info->weight, "Black" ) )
419 cidface->style_flags |= FT_STYLE_FLAG_BOLD;
420 }
421
422 /* no embedded bitmap support */
423 cidface->num_fixed_sizes = 0;
424 cidface->available_sizes = 0;
425
426 cidface->bbox.xMin = cid->font_bbox.xMin >> 16;
427 cidface->bbox.yMin = cid->font_bbox.yMin >> 16;
428 /* no `U' suffix here to 0xFFFF! */
429 cidface->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFF ) >> 16;
430 cidface->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFF ) >> 16;
431
432 if ( !cidface->units_per_EM )
433 cidface->units_per_EM = 1000;
434
435 cidface->ascender = (FT_Short)( cidface->bbox.yMax );
436 cidface->descender = (FT_Short)( cidface->bbox.yMin );
437
438 cidface->height = (FT_Short)( ( cidface->units_per_EM * 12 ) / 10 );
439 if ( cidface->height < cidface->ascender - cidface->descender )
440 cidface->height = (FT_Short)( cidface->ascender - cidface->descender );
441
442 cidface->underline_position = (FT_Short)info->underline_position;
443 cidface->underline_thickness = (FT_Short)info->underline_thickness;
444 }
445
446 Exit:
447 return error;
448 }
449
450
451 /*************************************************************************/
452 /* */
453 /* <Function> */
454 /* cid_driver_init */
455 /* */
456 /* <Description> */
457 /* Initializes a given CID driver object. */
458 /* */
459 /* <Input> */
460 /* driver :: A handle to the target driver object. */
461 /* */
462 /* <Return> */
463 /* FreeType error code. 0 means success. */
464 /* */
465 FT_LOCAL_DEF( FT_Error )
466 cid_driver_init( FT_Module driver )
467 {
468 FT_UNUSED( driver );
469
470 return FT_Err_Ok;
471 }
472
473
474 /*************************************************************************/
475 /* */
476 /* <Function> */
477 /* cid_driver_done */
478 /* */
479 /* <Description> */
480 /* Finalizes a given CID driver. */
481 /* */
482 /* <Input> */
483 /* driver :: A handle to the target CID driver. */
484 /* */
485 FT_LOCAL_DEF( void )
486 cid_driver_done( FT_Module driver )
487 {
488 FT_UNUSED( driver );
489 }
490
491
492 /* END */
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