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
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
|
/****************************************************************************
*
* cffobjs.c
*
* OpenType objects manager (body).
*
* Copyright 1996-2018 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 FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_CALC_H
#include FT_INTERNAL_STREAM_H
#include FT_ERRORS_H
#include FT_TRUETYPE_IDS_H
#include FT_TRUETYPE_TAGS_H
#include FT_INTERNAL_SFNT_H
#include FT_DRIVER_H
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
#include FT_MULTIPLE_MASTERS_H
#include FT_SERVICE_MULTIPLE_MASTERS_H
#include FT_SERVICE_METRICS_VARIATIONS_H
#endif
#include FT_INTERNAL_CFF_OBJECTS_TYPES_H
#include "cffobjs.h"
#include "cffload.h"
#include "cffcmap.h"
#include "cfferrs.h"
#include FT_INTERNAL_POSTSCRIPT_AUX_H
#include FT_SERVICE_CFF_TABLE_LOAD_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_cffobjs
/**************************************************************************
*
* SIZE FUNCTIONS
*
*/
static PSH_Globals_Funcs
cff_size_get_globals_funcs( CFF_Size size )
{
CFF_Face face = (CFF_Face)size->root.face;
CFF_Font font = (CFF_Font)face->extra.data;
PSHinter_Service pshinter = font->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 )
cff_size_done( FT_Size cffsize ) /* CFF_Size */
{
FT_Memory memory = cffsize->face->memory;
CFF_Size size = (CFF_Size)cffsize;
CFF_Face face = (CFF_Face)size->root.face;
CFF_Font font = (CFF_Font)face->extra.data;
CFF_Internal internal = (CFF_Internal)cffsize->internal->module_data;
if ( internal )
{
PSH_Globals_Funcs funcs;
funcs = cff_size_get_globals_funcs( size );
if ( funcs )
{
FT_UInt i;
funcs->destroy( internal->topfont );
for ( i = font->num_subfonts; i > 0; i-- )
funcs->destroy( internal->subfonts[i - 1] );
}
FT_FREE( internal );
}
}
/* CFF and Type 1 private dictionaries have slightly different */
/* structures; we need to synthesize a Type 1 dictionary on the fly */
static void
cff_make_private_dict( CFF_SubFont subfont,
PS_Private priv )
{
CFF_Private cpriv = &subfont->private_dict;
FT_UInt n, count;
FT_ZERO( priv );
count = priv->num_blue_values = cpriv->num_blue_values;
for ( n = 0; n < count; n++ )
priv->blue_values[n] = (FT_Short)cpriv->blue_values[n];
count = priv->num_other_blues = cpriv->num_other_blues;
for ( n = 0; n < count; n++ )
priv->other_blues[n] = (FT_Short)cpriv->other_blues[n];
count = priv->num_family_blues = cpriv->num_family_blues;
for ( n = 0; n < count; n++ )
priv->family_blues[n] = (FT_Short)cpriv->family_blues[n];
count = priv->num_family_other_blues = cpriv->num_family_other_blues;
for ( n = 0; n < count; n++ )
priv->family_other_blues[n] = (FT_Short)cpriv->family_other_blues[n];
priv->blue_scale = cpriv->blue_scale;
priv->blue_shift = (FT_Int)cpriv->blue_shift;
priv->blue_fuzz = (FT_Int)cpriv->blue_fuzz;
priv->standard_width[0] = (FT_UShort)cpriv->standard_width;
priv->standard_height[0] = (FT_UShort)cpriv->standard_height;
count = priv->num_snap_widths = cpriv->num_snap_widths;
for ( n = 0; n < count; n++ )
priv->snap_widths[n] = (FT_Short)cpriv->snap_widths[n];
count = priv->num_snap_heights = cpriv->num_snap_heights;
for ( n = 0; n < count; n++ )
priv->snap_heights[n] = (FT_Short)cpriv->snap_heights[n];
priv->force_bold = cpriv->force_bold;
priv->language_group = cpriv->language_group;
priv->lenIV = cpriv->lenIV;
}
FT_LOCAL_DEF( FT_Error )
cff_size_init( FT_Size cffsize ) /* CFF_Size */
{
CFF_Size size = (CFF_Size)cffsize;
FT_Error error = FT_Err_Ok;
PSH_Globals_Funcs funcs = cff_size_get_globals_funcs( size );
if ( funcs )
{
CFF_Face face = (CFF_Face)cffsize->face;
CFF_Font font = (CFF_Font)face->extra.data;
CFF_Internal internal = NULL;
PS_PrivateRec priv;
FT_Memory memory = cffsize->face->memory;
FT_UInt i;
if ( FT_NEW( internal ) )
goto Exit;
cff_make_private_dict( &font->top_font, &priv );
error = funcs->create( cffsize->face->memory, &priv,
&internal->topfont );
if ( error )
goto Exit;
for ( i = font->num_subfonts; i > 0; i-- )
{
CFF_SubFont sub = font->subfonts[i - 1];
cff_make_private_dict( sub, &priv );
error = funcs->create( cffsize->face->memory, &priv,
&internal->subfonts[i - 1] );
if ( error )
goto Exit;
}
cffsize->internal->module_data = internal;
}
size->strike_index = 0xFFFFFFFFUL;
Exit:
return error;
}
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
FT_LOCAL_DEF( FT_Error )
cff_size_select( FT_Size size,
FT_ULong strike_index )
{
CFF_Size cffsize = (CFF_Size)size;
PSH_Globals_Funcs funcs;
cffsize->strike_index = strike_index;
FT_Select_Metrics( size->face, strike_index );
funcs = cff_size_get_globals_funcs( cffsize );
if ( funcs )
{
CFF_Face face = (CFF_Face)size->face;
CFF_Font font = (CFF_Font)face->extra.data;
CFF_Internal internal = (CFF_Internal)size->internal->module_data;
FT_Long top_upm = (FT_Long)font->top_font.font_dict.units_per_em;
FT_UInt i;
funcs->set_scale( internal->topfont,
size->metrics.x_scale, size->metrics.y_scale,
0, 0 );
for ( i = font->num_subfonts; i > 0; i-- )
{
CFF_SubFont sub = font->subfonts[i - 1];
FT_Long sub_upm = (FT_Long)sub->font_dict.units_per_em;
FT_Pos x_scale, y_scale;
if ( top_upm != sub_upm )
{
x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm );
y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm );
}
else
{
x_scale = size->metrics.x_scale;
y_scale = size->metrics.y_scale;
}
funcs->set_scale( internal->subfonts[i - 1],
x_scale, y_scale, 0, 0 );
}
}
return FT_Err_Ok;
}
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
FT_LOCAL_DEF( FT_Error )
cff_size_request( FT_Size size,
FT_Size_Request req )
{
CFF_Size cffsize = (CFF_Size)size;
PSH_Globals_Funcs funcs;
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
if ( FT_HAS_FIXED_SIZES( size->face ) )
{
CFF_Face cffface = (CFF_Face)size->face;
SFNT_Service sfnt = (SFNT_Service)cffface->sfnt;
FT_ULong strike_index;
if ( sfnt->set_sbit_strike( cffface, req, &strike_index ) )
cffsize->strike_index = 0xFFFFFFFFUL;
else
return cff_size_select( size, strike_index );
}
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
FT_Request_Metrics( size->face, req );
funcs = cff_size_get_globals_funcs( cffsize );
if ( funcs )
{
CFF_Face cffface = (CFF_Face)size->face;
CFF_Font font = (CFF_Font)cffface->extra.data;
CFF_Internal internal = (CFF_Internal)size->internal->module_data;
FT_Long top_upm = (FT_Long)font->top_font.font_dict.units_per_em;
FT_UInt i;
funcs->set_scale( internal->topfont,
size->metrics.x_scale, size->metrics.y_scale,
0, 0 );
for ( i = font->num_subfonts; i > 0; i-- )
{
CFF_SubFont sub = font->subfonts[i - 1];
FT_Long sub_upm = (FT_Long)sub->font_dict.units_per_em;
FT_Pos x_scale, y_scale;
if ( top_upm != sub_upm )
{
x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm );
y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm );
}
else
{
x_scale = size->metrics.x_scale;
y_scale = size->metrics.y_scale;
}
funcs->set_scale( internal->subfonts[i - 1],
x_scale, y_scale, 0, 0 );
}
}
return FT_Err_Ok;
}
/**************************************************************************
*
* SLOT FUNCTIONS
*
*/
FT_LOCAL_DEF( void )
cff_slot_done( FT_GlyphSlot slot )
{
slot->internal->glyph_hints = NULL;
}
FT_LOCAL_DEF( FT_Error )
cff_slot_init( FT_GlyphSlot slot )
{
CFF_Face face = (CFF_Face)slot->face;
CFF_Font font = (CFF_Font)face->extra.data;
PSHinter_Service pshinter = font->pshinter;
if ( pshinter )
{
FT_Module module;
module = FT_Get_Module( slot->face->driver->root.library,
"pshinter" );
if ( module )
{
T2_Hints_Funcs funcs;
funcs = pshinter->get_t2_funcs( module );
slot->internal->glyph_hints = (void*)funcs;
}
}
return FT_Err_Ok;
}
/**************************************************************************
*
* FACE FUNCTIONS
*
*/
static FT_String*
cff_strcpy( FT_Memory memory,
const FT_String* source )
{
FT_Error error;
FT_String* result;
(void)FT_STRDUP( result, source );
FT_UNUSED( error );
return result;
}
/* Strip all subset prefixes of the form `ABCDEF+'. Usually, there */
/* is only one, but font names like `APCOOG+JFABTD+FuturaBQ-Bold' */
/* have been seen in the wild. */
static void
remove_subset_prefix( FT_String* name )
{
FT_Int32 idx = 0;
FT_Int32 length = (FT_Int32)ft_strlen( name ) + 1;
FT_Bool continue_search = 1;
while ( continue_search )
{
if ( length >= 7 && name[6] == '+' )
{
for ( idx = 0; idx < 6; idx++ )
{
/* ASCII uppercase letters */
if ( !( 'A' <= name[idx] && name[idx] <= 'Z' ) )
continue_search = 0;
}
if ( continue_search )
{
for ( idx = 7; idx < length; idx++ )
name[idx - 7] = name[idx];
length -= 7;
}
}
else
continue_search = 0;
}
}
/* Remove the style part from the family name (if present). */
static void
remove_style( FT_String* family_name,
const FT_String* style_name )
{
FT_Int32 family_name_length, style_name_length;
family_name_length = (FT_Int32)ft_strlen( family_name );
style_name_length = (FT_Int32)ft_strlen( style_name );
if ( family_name_length > style_name_length )
{
FT_Int idx;
for ( idx = 1; idx <= style_name_length; idx++ )
{
if ( family_name[family_name_length - idx] !=
style_name[style_name_length - idx] )
break;
}
if ( idx > style_name_length )
{
/* family_name ends with style_name; remove it */
idx = family_name_length - style_name_length - 1;
/* also remove special characters */
/* between real family name and style */
while ( idx > 0 &&
( family_name[idx] == '-' ||
family_name[idx] == ' ' ||
family_name[idx] == '_' ||
family_name[idx] == '+' ) )
idx--;
if ( idx > 0 )
family_name[idx + 1] = '\0';
}
}
}
FT_LOCAL_DEF( FT_Error )
cff_face_init( FT_Stream stream,
FT_Face cffface, /* CFF_Face */
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
{
CFF_Face face = (CFF_Face)cffface;
FT_Error error;
SFNT_Service sfnt;
FT_Service_PsCMaps psnames;
PSHinter_Service pshinter;
PSAux_Service psaux;
FT_Service_CFFLoad cffload;
FT_Bool pure_cff = 1;
FT_Bool cff2 = 0;
FT_Bool sfnt_format = 0;
FT_Library library = cffface->driver->root.library;
sfnt = (SFNT_Service)FT_Get_Module_Interface( library,
"sfnt" );
if ( !sfnt )
{
FT_ERROR(( "cff_face_init: cannot access `sfnt' module\n" ));
error = FT_THROW( Missing_Module );
goto Exit;
}
FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
pshinter = (PSHinter_Service)FT_Get_Module_Interface( library,
"pshinter" );
psaux = (PSAux_Service)FT_Get_Module_Interface( library,
"psaux" );
if ( !psaux )
{
FT_ERROR(( "cff_face_init: cannot access `psaux' module\n" ));
error = FT_THROW( Missing_Module );
goto Exit;
}
face->psaux = psaux;
FT_FACE_FIND_GLOBAL_SERVICE( face, cffload, CFF_LOAD );
FT_TRACE2(( "CFF driver\n" ));
/* create input stream from resource */
if ( FT_STREAM_SEEK( 0 ) )
goto Exit;
/* check whether we have a valid OpenType file */
FT_TRACE2(( " " ));
error = sfnt->init_face( stream, face, face_index, num_params, params );
if ( !error )
{
if ( face->format_tag != TTAG_OTTO ) /* `OTTO'; OpenType/CFF font */
{
FT_TRACE2(( " not an OpenType/CFF font\n" ));
error = FT_THROW( Unknown_File_Format );
goto Exit;
}
/* if we are performing a simple font format check, exit immediately */
if ( face_index < 0 )
return FT_Err_Ok;
sfnt_format = 1;
/* now, the font can be either an OpenType/CFF font, or an SVG CEF */
/* font; in the latter case it doesn't have a `head' table */
error = face->goto_table( face, TTAG_head, stream, 0 );
if ( !error )
{
pure_cff = 0;
/* load font directory */
error = sfnt->load_face( stream, face, face_index,
num_params, params );
if ( error )
goto Exit;
}
else
{
/* load the `cmap' table explicitly */
error = sfnt->load_cmap( face, stream );
if ( error )
goto Exit;
}
/* now load the CFF part of the file; */
/* give priority to CFF2 */
error = face->goto_table( face, TTAG_CFF2, stream, 0 );
if ( !error )
{
cff2 = 1;
face->is_cff2 = cff2;
}
if ( FT_ERR_EQ( error, Table_Missing ) )
error = face->goto_table( face, TTAG_CFF, stream, 0 );
if ( error )
goto Exit;
}
else
{
/* rewind to start of file; we are going to load a pure-CFF font */
if ( FT_STREAM_SEEK( 0 ) )
goto Exit;
error = FT_Err_Ok;
}
/* now load and parse the CFF table in the file */
{
CFF_Font cff = NULL;
CFF_FontRecDict dict;
FT_Memory memory = cffface->memory;
FT_Int32 flags;
FT_UInt i;
if ( FT_NEW( cff ) )
goto Exit;
face->extra.data = cff;
error = cff_font_load( library,
stream,
face_index,
cff,
face,
pure_cff,
cff2 );
if ( error )
goto Exit;
/* if we are performing a simple font format check, exit immediately */
/* (this is here for pure CFF) */
if ( face_index < 0 )
{
cffface->num_faces = (FT_Long)cff->num_faces;
return FT_Err_Ok;
}
cff->pshinter = pshinter;
cff->psnames = psnames;
cff->cffload = cffload;
cffface->face_index = face_index & 0xFFFF;
/* Complement the root flags with some interesting information. */
/* Note that this is only necessary for pure CFF and CEF fonts; */
/* SFNT based fonts use the `name' table instead. */
cffface->num_glyphs = (FT_Long)cff->num_glyphs;
dict = &cff->top_font.font_dict;
/* we need the `PSNames' module for CFF and CEF formats */
/* which aren't CID-keyed */
if ( dict->cid_registry == 0xFFFFU && !psnames )
{
FT_ERROR(( "cff_face_init:"
" cannot open CFF & CEF fonts\n"
" "
" without the `PSNames' module\n" ));
error = FT_THROW( Missing_Module );
goto Exit;
}
#ifdef FT_DEBUG_LEVEL_TRACE
{
FT_UInt idx;
FT_String* s;
FT_TRACE4(( "SIDs\n" ));
/* dump string index, including default strings for convenience */
for ( idx = 0; idx <= 390; idx++ )
{
s = cff_index_get_sid_string( cff, idx );
if ( s )
FT_TRACE4(( " %5d %s\n", idx, s ));
}
/* In Multiple Master CFFs, two SIDs hold the Normalize Design */
/* Vector (NDV) and Convert Design Vector (CDV) charstrings, */
/* which may contain NULL bytes in the middle of the data, too. */
/* We thus access `cff->strings' directly. */
for ( idx = 1; idx < cff->num_strings; idx++ )
{
FT_Byte* s1 = cff->strings[idx - 1];
FT_Byte* s2 = cff->strings[idx];
FT_PtrDist s1len = s2 - s1 - 1; /* without the final NULL byte */
FT_PtrDist l;
FT_TRACE4(( " %5d ", idx + 390 ));
for ( l = 0; l < s1len; l++ )
FT_TRACE4(( "%c", s1[l] ));
FT_TRACE4(( "\n" ));
}
/* print last element */
if ( cff->num_strings )
{
FT_Byte* s1 = cff->strings[cff->num_strings - 1];
FT_Byte* s2 = cff->string_pool + cff->string_pool_size;
FT_PtrDist s1len = s2 - s1 - 1;
FT_PtrDist l;
FT_TRACE4(( " %5d ", cff->num_strings + 390 ));
for ( l = 0; l < s1len; l++ )
FT_TRACE4(( "%c", s1[l] ));
FT_TRACE4(( "\n" ));
}
}
#endif /* FT_DEBUG_LEVEL_TRACE */
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
{
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)face->var;
FT_UInt instance_index = (FT_UInt)face_index >> 16;
if ( FT_HAS_MULTIPLE_MASTERS( cffface ) &&
mm &&
instance_index > 0 )
{
error = mm->set_instance( cffface, instance_index );
if ( error )
goto Exit;
if ( var )
var->metrics_adjust( cffface );
}
}
#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */
if ( !dict->has_font_matrix )
dict->units_per_em = pure_cff ? 1000 : face->root.units_per_EM;
/* Normalize the font matrix so that `matrix->yy' is 1; if */
/* it is zero, we use `matrix->yx' instead. The scaling is */
/* done with `units_per_em' then (at this point, it already */
/* contains the scaling factor, but without normalization */
/* of the matrix). */
/* */
/* Note that the offsets must be expressed in integer font */
/* units. */
{
FT_Matrix* matrix = &dict->font_matrix;
FT_Vector* offset = &dict->font_offset;
FT_ULong* upm = &dict->units_per_em;
FT_Fixed temp;
temp = matrix->yy ? FT_ABS( matrix->yy )
: FT_ABS( matrix->yx );
if ( temp != 0x10000L )
{
*upm = (FT_ULong)FT_DivFix( (FT_Long)*upm, temp );
matrix->xx = FT_DivFix( matrix->xx, temp );
matrix->yx = FT_DivFix( matrix->yx, temp );
matrix->xy = FT_DivFix( matrix->xy, temp );
matrix->yy = FT_DivFix( matrix->yy, temp );
offset->x = FT_DivFix( offset->x, temp );
offset->y = FT_DivFix( offset->y, temp );
}
offset->x >>= 16;
offset->y >>= 16;
}
for ( i = cff->num_subfonts; i > 0; i-- )
{
CFF_FontRecDict sub = &cff->subfonts[i - 1]->font_dict;
CFF_FontRecDict top = &cff->top_font.font_dict;
FT_Matrix* matrix;
FT_Vector* offset;
FT_ULong* upm;
FT_Fixed temp;
if ( sub->has_font_matrix )
{
FT_Long scaling;
/* if we have a top-level matrix, */
/* concatenate the subfont matrix */
if ( top->has_font_matrix )
{
if ( top->units_per_em > 1 && sub->units_per_em > 1 )
scaling = (FT_Long)FT_MIN( top->units_per_em,
sub->units_per_em );
else
scaling = 1;
FT_Matrix_Multiply_Scaled( &top->font_matrix,
&sub->font_matrix,
scaling );
FT_Vector_Transform_Scaled( &sub->font_offset,
&top->font_matrix,
scaling );
sub->units_per_em = (FT_ULong)
FT_MulDiv( (FT_Long)sub->units_per_em,
(FT_Long)top->units_per_em,
scaling );
}
}
else
{
sub->font_matrix = top->font_matrix;
sub->font_offset = top->font_offset;
sub->units_per_em = top->units_per_em;
}
matrix = &sub->font_matrix;
offset = &sub->font_offset;
upm = &sub->units_per_em;
temp = matrix->yy ? FT_ABS( matrix->yy )
: FT_ABS( matrix->yx );
if ( temp != 0x10000L )
{
*upm = (FT_ULong)FT_DivFix( (FT_Long)*upm, temp );
matrix->xx = FT_DivFix( matrix->xx, temp );
matrix->yx = FT_DivFix( matrix->yx, temp );
matrix->xy = FT_DivFix( matrix->xy, temp );
matrix->yy = FT_DivFix( matrix->yy, temp );
offset->x = FT_DivFix( offset->x, temp );
offset->y = FT_DivFix( offset->y, temp );
}
offset->x >>= 16;
offset->y >>= 16;
}
if ( pure_cff )
{
char* style_name = NULL;
/* set up num_faces */
cffface->num_faces = (FT_Long)cff->num_faces;
/* compute number of glyphs */
if ( dict->cid_registry != 0xFFFFU )
cffface->num_glyphs = (FT_Long)( cff->charset.max_cid + 1 );
else
cffface->num_glyphs = (FT_Long)cff->charstrings_index.count;
/* set global bbox, as well as EM size */
cffface->bbox.xMin = dict->font_bbox.xMin >> 16;
cffface->bbox.yMin = dict->font_bbox.yMin >> 16;
/* no `U' suffix here to 0xFFFF! */
cffface->bbox.xMax = ( dict->font_bbox.xMax + 0xFFFF ) >> 16;
cffface->bbox.yMax = ( dict->font_bbox.yMax + 0xFFFF ) >> 16;
cffface->units_per_EM = (FT_UShort)( dict->units_per_em );
cffface->ascender = (FT_Short)( cffface->bbox.yMax );
cffface->descender = (FT_Short)( cffface->bbox.yMin );
cffface->height = (FT_Short)( ( cffface->units_per_EM * 12 ) / 10 );
if ( cffface->height < cffface->ascender - cffface->descender )
cffface->height = (FT_Short)( cffface->ascender -
cffface->descender );
cffface->underline_position =
(FT_Short)( dict->underline_position >> 16 );
cffface->underline_thickness =
(FT_Short)( dict->underline_thickness >> 16 );
/* retrieve font family & style name */
if ( dict->family_name )
{
char* family_name;
family_name = cff_index_get_sid_string( cff, dict->family_name );
if ( family_name )
cffface->family_name = cff_strcpy( memory, family_name );
}
if ( !cffface->family_name )
{
cffface->family_name = cff_index_get_name(
cff,
(FT_UInt)( face_index & 0xFFFF ) );
if ( cffface->family_name )
remove_subset_prefix( cffface->family_name );
}
if ( cffface->family_name )
{
char* full = cff_index_get_sid_string( cff,
dict->full_name );
char* fullp = full;
char* family = cffface->family_name;
/* We try to extract the style name from the full name. */
/* We need to ignore spaces and dashes during the search. */
if ( full && family )
{
while ( *fullp )
{
/* skip common characters at the start of both strings */
if ( *fullp == *family )
{
family++;
fullp++;
continue;
}
/* ignore spaces and dashes in full name during comparison */
if ( *fullp == ' ' || *fullp == '-' )
{
fullp++;
continue;
}
/* ignore spaces and dashes in family name during comparison */
if ( *family == ' ' || *family == '-' )
{
family++;
continue;
}
if ( !*family && *fullp )
{
/* The full name begins with the same characters as the */
/* family name, with spaces and dashes removed. In this */
/* case, the remaining string in `fullp' will be used as */
/* the style name. */
style_name = cff_strcpy( memory, fullp );
/* remove the style part from the family name (if present) */
remove_style( cffface->family_name, style_name );
}
break;
}
}
}
else
{
char *cid_font_name =
cff_index_get_sid_string( cff,
dict->cid_font_name );
/* do we have a `/FontName' for a CID-keyed font? */
if ( cid_font_name )
cffface->family_name = cff_strcpy( memory, cid_font_name );
}
if ( style_name )
cffface->style_name = style_name;
else
/* assume "Regular" style if we don't know better */
cffface->style_name = cff_strcpy( memory, (char *)"Regular" );
/********************************************************************
*
* Compute face flags.
*/
flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */
FT_FACE_FLAG_HORIZONTAL | /* horizontal data */
FT_FACE_FLAG_HINTER; /* has native hinter */
if ( sfnt_format )
flags |= FT_FACE_FLAG_SFNT;
/* fixed width font? */
if ( dict->is_fixed_pitch )
flags |= FT_FACE_FLAG_FIXED_WIDTH;
/* XXX: WE DO NOT SUPPORT KERNING METRICS IN THE GPOS TABLE FOR NOW */
#if 0
/* kerning available? */
if ( face->kern_pairs )
flags |= FT_FACE_FLAG_KERNING;
#endif
cffface->face_flags |= flags;
/********************************************************************
*
* Compute style flags.
*/
flags = 0;
if ( dict->italic_angle )
flags |= FT_STYLE_FLAG_ITALIC;
{
char *weight = cff_index_get_sid_string( cff,
dict->weight );
if ( weight )
if ( !ft_strcmp( weight, "Bold" ) ||
!ft_strcmp( weight, "Black" ) )
flags |= FT_STYLE_FLAG_BOLD;
}
/* double check */
if ( !(flags & FT_STYLE_FLAG_BOLD) && cffface->style_name )
if ( !ft_strncmp( cffface->style_name, "Bold", 4 ) ||
!ft_strncmp( cffface->style_name, "Black", 5 ) )
flags |= FT_STYLE_FLAG_BOLD;
cffface->style_flags = flags;
}
#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES
/* CID-keyed CFF fonts don't have glyph names -- the SFNT loader */
/* has unset this flag because of the 3.0 `post' table. */
if ( dict->cid_registry == 0xFFFFU )
cffface->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;
#endif
if ( dict->cid_registry != 0xFFFFU && pure_cff )
cffface->face_flags |= FT_FACE_FLAG_CID_KEYED;
/********************************************************************
*
* Compute char maps.
*/
/* Try to synthesize a Unicode charmap if there is none available */
/* already. If an OpenType font contains a Unicode "cmap", we */
/* will use it, whatever be in the CFF part of the file. */
{
FT_CharMapRec cmaprec;
FT_CharMap cmap;
FT_UInt nn;
CFF_Encoding encoding = &cff->encoding;
for ( nn = 0; nn < (FT_UInt)cffface->num_charmaps; nn++ )
{
cmap = cffface->charmaps[nn];
/* Windows Unicode? */
if ( cmap->platform_id == TT_PLATFORM_MICROSOFT &&
cmap->encoding_id == TT_MS_ID_UNICODE_CS )
goto Skip_Unicode;
/* Apple Unicode platform id? */
if ( cmap->platform_id == TT_PLATFORM_APPLE_UNICODE )
goto Skip_Unicode; /* Apple Unicode */
}
/* since CID-keyed fonts don't contain glyph names, we can't */
/* construct a cmap */
if ( pure_cff && cff->top_font.font_dict.cid_registry != 0xFFFFU )
goto Exit;
/* we didn't find a Unicode charmap -- synthesize one */
cmaprec.face = cffface;
cmaprec.platform_id = TT_PLATFORM_MICROSOFT;
cmaprec.encoding_id = TT_MS_ID_UNICODE_CS;
cmaprec.encoding = FT_ENCODING_UNICODE;
nn = (FT_UInt)cffface->num_charmaps;
error = FT_CMap_New( &cff_cmap_unicode_class_rec, NULL,
&cmaprec, NULL );
if ( error &&
FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) )
goto Exit;
error = FT_Err_Ok;
/* if no Unicode charmap was previously selected, select this one */
if ( !cffface->charmap && nn != (FT_UInt)cffface->num_charmaps )
cffface->charmap = cffface->charmaps[nn];
Skip_Unicode:
if ( encoding->count > 0 )
{
FT_CMap_Class clazz;
cmaprec.face = cffface;
cmaprec.platform_id = TT_PLATFORM_ADOBE; /* Adobe platform id */
if ( encoding->offset == 0 )
{
cmaprec.encoding_id = TT_ADOBE_ID_STANDARD;
cmaprec.encoding = FT_ENCODING_ADOBE_STANDARD;
clazz = &cff_cmap_encoding_class_rec;
}
else if ( encoding->offset == 1 )
{
cmaprec.encoding_id = TT_ADOBE_ID_EXPERT;
cmaprec.encoding = FT_ENCODING_ADOBE_EXPERT;
clazz = &cff_cmap_encoding_class_rec;
}
else
{
cmaprec.encoding_id = TT_ADOBE_ID_CUSTOM;
cmaprec.encoding = FT_ENCODING_ADOBE_CUSTOM;
clazz = &cff_cmap_encoding_class_rec;
}
error = FT_CMap_New( clazz, NULL, &cmaprec, NULL );
}
}
}
Exit:
return error;
}
FT_LOCAL_DEF( void )
cff_face_done( FT_Face cffface ) /* CFF_Face */
{
CFF_Face face = (CFF_Face)cffface;
FT_Memory memory;
SFNT_Service sfnt;
if ( !face )
return;
memory = cffface->memory;
sfnt = (SFNT_Service)face->sfnt;
if ( sfnt )
sfnt->done_face( face );
{
CFF_Font cff = (CFF_Font)face->extra.data;
if ( cff )
{
cff_font_done( cff );
FT_FREE( face->extra.data );
}
}
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
cff_done_blend( face );
face->blend = NULL;
#endif
}
FT_LOCAL_DEF( FT_Error )
cff_driver_init( FT_Module module ) /* CFF_Driver */
{
PS_Driver driver = (PS_Driver)module;
FT_UInt32 seed;
/* set default property values, cf. `ftcffdrv.h' */
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
driver->hinting_engine = FT_HINTING_FREETYPE;
#else
driver->hinting_engine = FT_HINTING_ADOBE;
#endif
driver->no_stem_darkening = TRUE;
driver->darken_params[0] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1;
driver->darken_params[1] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1;
driver->darken_params[2] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2;
driver->darken_params[3] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2;
driver->darken_params[4] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3;
driver->darken_params[5] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3;
driver->darken_params[6] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4;
driver->darken_params[7] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4;
/* compute random seed from some memory addresses */
seed = (FT_UInt32)( (FT_Offset)(char*)&seed ^
(FT_Offset)(char*)&module ^
(FT_Offset)(char*)module->memory );
seed = seed ^ ( seed >> 10 ) ^ ( seed >> 20 );
driver->random_seed = (FT_Int32)seed;
if ( driver->random_seed < 0 )
driver->random_seed = -driver->random_seed;
else if ( driver->random_seed == 0 )
driver->random_seed = 123456789;
return FT_Err_Ok;
}
FT_LOCAL_DEF( void )
cff_driver_done( FT_Module module ) /* CFF_Driver */
{
FT_UNUSED( module );
}
/* END */
|