1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
|
/***************************************************************************/
/* */
/* cidobjs.c */
/* */
/* CID objects manager (body). */
/* */
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
#include <ft2build.h>
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftstream.h>
#include "cidgload.h"
#include "cidload.h"
#include FT_SERVICE_POSTSCRIPT_CMAPS_H
#include <freetype/internal/psaux.h>
#include <freetype/internal/pshints.h>
#include "ciderrs.h"
/*************************************************************************/
/* */
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
/* messages during execution. */
/* */
#undef FT_COMPONENT
#define FT_COMPONENT trace_cidobjs
/*************************************************************************/
/* */
/* SLOT FUNCTIONS */
/* */
/*************************************************************************/
FT_LOCAL_DEF( void )
cid_slot_done( FT_GlyphSlot slot )
{
slot->internal->glyph_hints = 0;
}
FT_LOCAL_DEF( FT_Error )
cid_slot_init( FT_GlyphSlot slot )
{
CID_Face face;
PSHinter_Service pshinter;
face = (CID_Face)slot->face;
pshinter = (PSHinter_Service)face->pshinter;
if ( pshinter )
{
FT_Module module;
module = FT_Get_Module( slot->face->driver->root.library,
"pshinter" );
if ( module )
{
T1_Hints_Funcs funcs;
funcs = pshinter->get_t1_funcs( module );
slot->internal->glyph_hints = (void*)funcs;
}
}
return 0;
}
/*************************************************************************/
/* */
/* SIZE FUNCTIONS */
/* */
/*************************************************************************/
static PSH_Globals_Funcs
cid_size_get_globals_funcs( CID_Size size )
{
CID_Face face = (CID_Face)size->root.face;
PSHinter_Service pshinter = (PSHinter_Service)face->pshinter;
FT_Module module;
module = FT_Get_Module( size->root.face->driver->root.library,
"pshinter" );
return ( module && pshinter && pshinter->get_globals_funcs )
? pshinter->get_globals_funcs( module )
: 0;
}
FT_LOCAL_DEF( void )
cid_size_done( FT_Size cidsize ) /* CID_Size */
{
CID_Size size = (CID_Size)cidsize;
if ( cidsize->internal )
{
PSH_Globals_Funcs funcs;
funcs = cid_size_get_globals_funcs( size );
if ( funcs )
funcs->destroy( (PSH_Globals)cidsize->internal );
cidsize->internal = 0;
}
}
FT_LOCAL_DEF( FT_Error )
cid_size_init( FT_Size cidsize ) /* CID_Size */
{
CID_Size size = (CID_Size)cidsize;
FT_Error error = 0;
PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size );
if ( funcs )
{
PSH_Globals globals;
CID_Face face = (CID_Face)cidsize->face;
CID_FaceDict dict = face->cid.font_dicts + face->root.face_index;
PS_Private priv = &dict->private_dict;
error = funcs->create( cidsize->face->memory, priv, &globals );
if ( !error )
cidsize->internal = (FT_Size_Internal)(void*)globals;
}
return error;
}
FT_LOCAL( FT_Error )
cid_size_request( FT_Size size,
FT_Size_Request req )
{
PSH_Globals_Funcs funcs;
FT_Request_Metrics( size->face, req );
funcs = cid_size_get_globals_funcs( (CID_Size)size );
if ( funcs )
funcs->set_scale( (PSH_Globals)size->internal,
size->metrics.x_scale,
size->metrics.y_scale,
0, 0 );
return CID_Err_Ok;
}
/*************************************************************************/
/* */
/* FACE FUNCTIONS */
/* */
/*************************************************************************/
/*************************************************************************/
/* */
/* <Function> */
/* cid_face_done */
/* */
/* <Description> */
/* Finalizes a given face object. */
/* */
/* <Input> */
/* face :: A pointer to the face object to destroy. */
/* */
FT_LOCAL_DEF( void )
cid_face_done( FT_Face cidface ) /* CID_Face */
{
CID_Face face = (CID_Face)cidface;
FT_Memory memory;
CID_FaceInfo cid;
PS_FontInfo info;
if ( !face )
return;
cid = &face->cid;
info = &cid->font_info;
memory = cidface->memory;
/* release subrs */
if ( face->subrs )
{
FT_Int n;
for ( n = 0; n < cid->num_dicts; n++ )
{
CID_Subrs subr = face->subrs + n;
if ( subr->code )
{
FT_FREE( subr->code[0] );
FT_FREE( subr->code );
}
}
FT_FREE( face->subrs );
}
/* release FontInfo strings */
FT_FREE( info->version );
FT_FREE( info->notice );
FT_FREE( info->full_name );
FT_FREE( info->family_name );
FT_FREE( info->weight );
/* release font dictionaries */
FT_FREE( cid->font_dicts );
cid->num_dicts = 0;
/* release other strings */
FT_FREE( cid->cid_font_name );
FT_FREE( cid->registry );
FT_FREE( cid->ordering );
cidface->family_name = 0;
cidface->style_name = 0;
FT_FREE( face->binary_data );
FT_FREE( face->cid_stream );
}
/*************************************************************************/
/* */
/* <Function> */
/* cid_face_init */
/* */
/* <Description> */
/* Initializes a given CID face object. */
/* */
/* <Input> */
/* stream :: The source font stream. */
/* */
/* face_index :: The index of the font face in the resource. */
/* */
/* num_params :: Number of additional generic parameters. Ignored. */
/* */
/* params :: Additional generic parameters. Ignored. */
/* */
/* <InOut> */
/* face :: The newly built face object. */
/* */
/* <Return> */
/* FreeType error code. 0 means success. */
/* */
FT_LOCAL_DEF( FT_Error )
cid_face_init( FT_Stream stream,
FT_Face cidface, /* CID_Face */
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
{
CID_Face face = (CID_Face)cidface;
FT_Error error;
PSAux_Service psaux;
PSHinter_Service pshinter;
FT_UNUSED( num_params );
FT_UNUSED( params );
FT_UNUSED( stream );
cidface->num_faces = 1;
psaux = (PSAux_Service)face->psaux;
if ( !psaux )
{
psaux = (PSAux_Service)FT_Get_Module_Interface(
FT_FACE_LIBRARY( face ), "psaux" );
face->psaux = psaux;
}
pshinter = (PSHinter_Service)face->pshinter;
if ( !pshinter )
{
pshinter = (PSHinter_Service)FT_Get_Module_Interface(
FT_FACE_LIBRARY( face ), "pshinter" );
face->pshinter = pshinter;
}
/* open the tokenizer; this will also check the font format */
if ( FT_STREAM_SEEK( 0 ) )
goto Exit;
error = cid_face_open( face, face_index );
if ( error )
goto Exit;
/* if we just wanted to check the format, leave successfully now */
if ( face_index < 0 )
goto Exit;
/* check the face index */
/* XXX: handle CID fonts with more than a single face */
if ( face_index != 0 )
{
FT_ERROR(( "cid_face_init: invalid face index\n" ));
error = CID_Err_Invalid_Argument;
goto Exit;
}
/* now load the font program into the face object */
/* initialize the face object fields */
/* set up root face fields */
{
CID_FaceInfo cid = &face->cid;
PS_FontInfo info = &cid->font_info;
cidface->num_glyphs = cid->cid_count;
cidface->num_charmaps = 0;
cidface->face_index = face_index;
cidface->face_flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */
FT_FACE_FLAG_HORIZONTAL | /* horizontal data */
FT_FACE_FLAG_HINTER; /* has native hinter */
if ( info->is_fixed_pitch )
cidface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
/* XXX: TODO: add kerning with .afm support */
/* get style name -- be careful, some broken fonts only */
/* have a /FontName dictionary entry! */
cidface->family_name = info->family_name;
/* assume "Regular" style if we don't know better */
cidface->style_name = (char *)"Regular";
if ( cidface->family_name )
{
char* full = info->full_name;
char* family = cidface->family_name;
if ( full )
{
while ( *full )
{
if ( *full == *family )
{
family++;
full++;
}
else
{
if ( *full == ' ' || *full == '-' )
full++;
else if ( *family == ' ' || *family == '-' )
family++;
else
{
if ( !*family )
cidface->style_name = full;
break;
}
}
}
}
}
else
{
/* do we have a `/FontName'? */
if ( cid->cid_font_name )
cidface->family_name = cid->cid_font_name;
}
/* compute style flags */
cidface->style_flags = 0;
if ( info->italic_angle )
cidface->style_flags |= FT_STYLE_FLAG_ITALIC;
if ( info->weight )
{
if ( !ft_strcmp( info->weight, "Bold" ) ||
!ft_strcmp( info->weight, "Black" ) )
cidface->style_flags |= FT_STYLE_FLAG_BOLD;
}
/* no embedded bitmap support */
cidface->num_fixed_sizes = 0;
cidface->available_sizes = 0;
cidface->bbox.xMin = cid->font_bbox.xMin >> 16;
cidface->bbox.yMin = cid->font_bbox.yMin >> 16;
cidface->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFFU ) >> 16;
cidface->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFFU ) >> 16;
if ( !cidface->units_per_EM )
cidface->units_per_EM = 1000;
cidface->ascender = (FT_Short)( cidface->bbox.yMax );
cidface->descender = (FT_Short)( cidface->bbox.yMin );
cidface->height = (FT_Short)( ( cidface->units_per_EM * 12 ) / 10 );
if ( cidface->height < cidface->ascender - cidface->descender )
cidface->height = (FT_Short)( cidface->ascender - cidface->descender );
cidface->underline_position = (FT_Short)info->underline_position;
cidface->underline_thickness = (FT_Short)info->underline_thickness;
}
Exit:
return error;
}
/*************************************************************************/
/* */
/* <Function> */
/* cid_driver_init */
/* */
/* <Description> */
/* Initializes a given CID driver object. */
/* */
/* <Input> */
/* driver :: A handle to the target driver object. */
/* */
/* <Return> */
/* FreeType error code. 0 means success. */
/* */
FT_LOCAL_DEF( FT_Error )
cid_driver_init( FT_Module driver )
{
FT_UNUSED( driver );
return CID_Err_Ok;
}
/*************************************************************************/
/* */
/* <Function> */
/* cid_driver_done */
/* */
/* <Description> */
/* Finalizes a given CID driver. */
/* */
/* <Input> */
/* driver :: A handle to the target CID driver. */
/* */
FT_LOCAL_DEF( void )
cid_driver_done( FT_Module driver )
{
FT_UNUSED( driver );
}
/* END */
|
