1 /****************************************************************************
2 *
3 * t1driver.c
4 *
5 * Type 1 driver interface (body).
6 *
7 * Copyright (C) 1996-2020 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 "t1driver.h"
21 #include "t1gload.h"
22 #include "t1load.h"
23
24 #include "t1errors.h"
25
26 #ifndef T1_CONFIG_OPTION_NO_AFM
27 #include "t1afm.h"
28 #endif
29
30 #include FT_INTERNAL_DEBUG_H
31 #include FT_INTERNAL_STREAM_H
32 #include FT_INTERNAL_HASH_H
33 #include FT_INTERNAL_POSTSCRIPT_PROPS_H
34 #include FT_DRIVER_H
35
36 #include FT_SERVICE_MULTIPLE_MASTERS_H
37 #include FT_SERVICE_GLYPH_DICT_H
38 #include FT_SERVICE_FONT_FORMAT_H
39 #include FT_SERVICE_POSTSCRIPT_NAME_H
40 #include FT_SERVICE_POSTSCRIPT_CMAPS_H
41 #include FT_SERVICE_POSTSCRIPT_INFO_H
42 #include FT_SERVICE_PROPERTIES_H
43 #include FT_SERVICE_KERNING_H
44
45
46 /**************************************************************************
47 *
48 * The macro FT_COMPONENT is used in trace mode. It is an implicit
49 * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
50 * messages during execution.
51 */
52 #undef FT_COMPONENT
53 #define FT_COMPONENT t1driver
54
55 /*
56 * GLYPH DICT SERVICE
57 *
58 */
59
60 static FT_Error
61 t1_get_glyph_name( T1_Face face,
62 FT_UInt glyph_index,
63 FT_Pointer buffer,
64 FT_UInt buffer_max )
65 {
66 FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max );
67
68 return FT_Err_Ok;
69 }
70
71
72 static FT_UInt
73 t1_get_name_index( T1_Face face,
74 const FT_String* glyph_name )
75 {
76 FT_Int i;
77
78
79 for ( i = 0; i < face->type1.num_glyphs; i++ )
80 {
81 FT_String* gname = face->type1.glyph_names[i];
82
83
84 if ( !ft_strcmp( glyph_name, gname ) )
85 return (FT_UInt)i;
86 }
87
88 return 0;
89 }
90
91
92 static const FT_Service_GlyphDictRec t1_service_glyph_dict =
93 {
94 (FT_GlyphDict_GetNameFunc) t1_get_glyph_name, /* get_name */
95 (FT_GlyphDict_NameIndexFunc)t1_get_name_index /* name_index */
96 };
97
98
99 /*
100 * POSTSCRIPT NAME SERVICE
101 *
102 */
103
104 static const char*
105 t1_get_ps_name( T1_Face face )
106 {
107 return (const char*) face->type1.font_name;
108 }
109
110
111 static const FT_Service_PsFontNameRec t1_service_ps_name =
112 {
113 (FT_PsName_GetFunc)t1_get_ps_name /* get_ps_font_name */
114 };
115
116
117 /*
118 * MULTIPLE MASTERS SERVICE
119 *
120 */
121
122 #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
123 static const FT_Service_MultiMastersRec t1_service_multi_masters =
124 {
125 (FT_Get_MM_Func) T1_Get_Multi_Master, /* get_mm */
126 (FT_Set_MM_Design_Func) T1_Set_MM_Design, /* set_mm_design */
127 (FT_Set_MM_Blend_Func) T1_Set_MM_Blend, /* set_mm_blend */
128 (FT_Get_MM_Blend_Func) T1_Get_MM_Blend, /* get_mm_blend */
129 (FT_Get_MM_Var_Func) T1_Get_MM_Var, /* get_mm_var */
130 (FT_Set_Var_Design_Func) T1_Set_Var_Design, /* set_var_design */
131 (FT_Get_Var_Design_Func) T1_Get_Var_Design, /* get_var_design */
132 (FT_Set_Instance_Func) T1_Reset_MM_Blend, /* set_instance */
133 (FT_Set_MM_WeightVector_Func)T1_Set_MM_WeightVector, /* set_mm_weightvector */
134 (FT_Get_MM_WeightVector_Func)T1_Get_MM_WeightVector, /* get_mm_weightvector */
135
136 (FT_Get_Var_Blend_Func) NULL, /* get_var_blend */
137 (FT_Done_Blend_Func) T1_Done_Blend /* done_blend */
138 };
139 #endif
140
141
142 /*
143 * POSTSCRIPT INFO SERVICE
144 *
145 */
146
147 static FT_Error
148 t1_ps_get_font_info( FT_Face face,
149 PS_FontInfoRec* afont_info )
150 {
151 *afont_info = ((T1_Face)face)->type1.font_info;
152
153 return FT_Err_Ok;
154 }
155
156
157 static FT_Error
158 t1_ps_get_font_extra( FT_Face face,
159 PS_FontExtraRec* afont_extra )
160 {
161 *afont_extra = ((T1_Face)face)->type1.font_extra;
162
163 return FT_Err_Ok;
164 }
165
166
167 static FT_Int
168 t1_ps_has_glyph_names( FT_Face face )
169 {
170 FT_UNUSED( face );
171
172 return 1;
173 }
174
175
176 static FT_Error
177 t1_ps_get_font_private( FT_Face face,
178 PS_PrivateRec* afont_private )
179 {
180 *afont_private = ((T1_Face)face)->type1.private_dict;
181
182 return FT_Err_Ok;
183 }
184
185
186 static FT_Long
187 t1_ps_get_font_value( FT_Face face,
188 PS_Dict_Keys key,
189 FT_UInt idx,
190 void *value,
191 FT_Long value_len_ )
192 {
193 FT_ULong retval = 0; /* always >= 1 if valid */
194 FT_ULong value_len = value_len_ < 0 ? 0 : (FT_ULong)value_len_;
195
196 T1_Face t1face = (T1_Face)face;
197 T1_Font type1 = &t1face->type1;
198
199
200 switch ( key )
201 {
202 case PS_DICT_FONT_TYPE:
203 retval = sizeof ( type1->font_type );
204 if ( value && value_len >= retval )
205 *((FT_Byte *)value) = type1->font_type;
206 break;
207
208 case PS_DICT_FONT_MATRIX:
209 if ( idx < sizeof ( type1->font_matrix ) /
210 sizeof ( type1->font_matrix.xx ) )
211 {
212 FT_Fixed val = 0;
213
214
215 retval = sizeof ( val );
216 if ( value && value_len >= retval )
217 {
218 switch ( idx )
219 {
220 case 0:
221 val = type1->font_matrix.xx;
222 break;
223 case 1:
224 val = type1->font_matrix.xy;
225 break;
226 case 2:
227 val = type1->font_matrix.yx;
228 break;
229 case 3:
230 val = type1->font_matrix.yy;
231 break;
232 }
233 *((FT_Fixed *)value) = val;
234 }
235 }
236 break;
237
238 case PS_DICT_FONT_BBOX:
239 if ( idx < sizeof ( type1->font_bbox ) /
240 sizeof ( type1->font_bbox.xMin ) )
241 {
242 FT_Fixed val = 0;
243
244
245 retval = sizeof ( val );
246 if ( value && value_len >= retval )
247 {
248 switch ( idx )
249 {
250 case 0:
251 val = type1->font_bbox.xMin;
252 break;
253 case 1:
254 val = type1->font_bbox.yMin;
255 break;
256 case 2:
257 val = type1->font_bbox.xMax;
258 break;
259 case 3:
260 val = type1->font_bbox.yMax;
261 break;
262 }
263 *((FT_Fixed *)value) = val;
264 }
265 }
266 break;
267
268 case PS_DICT_PAINT_TYPE:
269 retval = sizeof ( type1->paint_type );
270 if ( value && value_len >= retval )
271 *((FT_Byte *)value) = type1->paint_type;
272 break;
273
274 case PS_DICT_FONT_NAME:
275 if ( type1->font_name )
276 {
277 retval = ft_strlen( type1->font_name ) + 1;
278 if ( value && value_len >= retval )
279 ft_memcpy( value, (void *)( type1->font_name ), retval );
280 }
281 break;
282
283 case PS_DICT_UNIQUE_ID:
284 retval = sizeof ( type1->private_dict.unique_id );
285 if ( value && value_len >= retval )
286 *((FT_Int *)value) = type1->private_dict.unique_id;
287 break;
288
289 case PS_DICT_NUM_CHAR_STRINGS:
290 retval = sizeof ( type1->num_glyphs );
291 if ( value && value_len >= retval )
292 *((FT_Int *)value) = type1->num_glyphs;
293 break;
294
295 case PS_DICT_CHAR_STRING_KEY:
296 if ( idx < (FT_UInt)type1->num_glyphs )
297 {
298 retval = ft_strlen( type1->glyph_names[idx] ) + 1;
299 if ( value && value_len >= retval )
300 {
301 ft_memcpy( value, (void *)( type1->glyph_names[idx] ), retval );
302 ((FT_Char *)value)[retval - 1] = (FT_Char)'\0';
303 }
304 }
305 break;
306
307 case PS_DICT_CHAR_STRING:
308 if ( idx < (FT_UInt)type1->num_glyphs )
309 {
310 retval = type1->charstrings_len[idx] + 1;
311 if ( value && value_len >= retval )
312 {
313 ft_memcpy( value, (void *)( type1->charstrings[idx] ),
314 retval - 1 );
315 ((FT_Char *)value)[retval - 1] = (FT_Char)'\0';
316 }
317 }
318 break;
319
320 case PS_DICT_ENCODING_TYPE:
321 retval = sizeof ( type1->encoding_type );
322 if ( value && value_len >= retval )
323 *((T1_EncodingType *)value) = type1->encoding_type;
324 break;
325
326 case PS_DICT_ENCODING_ENTRY:
327 if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY &&
328 idx < (FT_UInt)type1->encoding.num_chars )
329 {
330 retval = ft_strlen( type1->encoding.char_name[idx] ) + 1;
331 if ( value && value_len >= retval )
332 {
333 ft_memcpy( value, (void *)( type1->encoding.char_name[idx] ),
334 retval - 1 );
335 ((FT_Char *)value)[retval - 1] = (FT_Char)'\0';
336 }
337 }
338 break;
339
340 case PS_DICT_NUM_SUBRS:
341 retval = sizeof ( type1->num_subrs );
342 if ( value && value_len >= retval )
343 *((FT_Int *)value) = type1->num_subrs;
344 break;
345
346 case PS_DICT_SUBR:
347 {
348 FT_Bool ok = 0;
349
350
351 if ( type1->subrs_hash )
352 {
353 /* convert subr index to array index */
354 size_t* val = ft_hash_num_lookup( (FT_Int)idx,
355 type1->subrs_hash );
356
357
358 if ( val )
359 {
360 idx = *val;
361 ok = 1;
362 }
363 }
364 else
365 {
366 if ( idx < (FT_UInt)type1->num_subrs )
367 ok = 1;
368 }
369
370 if ( ok && type1->subrs )
371 {
372 retval = type1->subrs_len[idx] + 1;
373 if ( value && value_len >= retval )
374 {
375 ft_memcpy( value, (void *)( type1->subrs[idx] ), retval - 1 );
376 ((FT_Char *)value)[retval - 1] = (FT_Char)'\0';
377 }
378 }
379 }
380 break;
381
382 case PS_DICT_STD_HW:
383 retval = sizeof ( type1->private_dict.standard_width[0] );
384 if ( value && value_len >= retval )
385 *((FT_UShort *)value) = type1->private_dict.standard_width[0];
386 break;
387
388 case PS_DICT_STD_VW:
389 retval = sizeof ( type1->private_dict.standard_height[0] );
390 if ( value && value_len >= retval )
391 *((FT_UShort *)value) = type1->private_dict.standard_height[0];
392 break;
393
394 case PS_DICT_NUM_BLUE_VALUES:
395 retval = sizeof ( type1->private_dict.num_blue_values );
396 if ( value && value_len >= retval )
397 *((FT_Byte *)value) = type1->private_dict.num_blue_values;
398 break;
399
400 case PS_DICT_BLUE_VALUE:
401 if ( idx < type1->private_dict.num_blue_values )
402 {
403 retval = sizeof ( type1->private_dict.blue_values[idx] );
404 if ( value && value_len >= retval )
405 *((FT_Short *)value) = type1->private_dict.blue_values[idx];
406 }
407 break;
408
409 case PS_DICT_BLUE_SCALE:
410 retval = sizeof ( type1->private_dict.blue_scale );
411 if ( value && value_len >= retval )
412 *((FT_Fixed *)value) = type1->private_dict.blue_scale;
413 break;
414
415 case PS_DICT_BLUE_FUZZ:
416 retval = sizeof ( type1->private_dict.blue_fuzz );
417 if ( value && value_len >= retval )
418 *((FT_Int *)value) = type1->private_dict.blue_fuzz;
419 break;
420
421 case PS_DICT_BLUE_SHIFT:
422 retval = sizeof ( type1->private_dict.blue_shift );
423 if ( value && value_len >= retval )
424 *((FT_Int *)value) = type1->private_dict.blue_shift;
425 break;
426
427 case PS_DICT_NUM_OTHER_BLUES:
428 retval = sizeof ( type1->private_dict.num_other_blues );
429 if ( value && value_len >= retval )
430 *((FT_Byte *)value) = type1->private_dict.num_other_blues;
431 break;
432
433 case PS_DICT_OTHER_BLUE:
434 if ( idx < type1->private_dict.num_other_blues )
435 {
436 retval = sizeof ( type1->private_dict.other_blues[idx] );
437 if ( value && value_len >= retval )
438 *((FT_Short *)value) = type1->private_dict.other_blues[idx];
439 }
440 break;
441
442 case PS_DICT_NUM_FAMILY_BLUES:
443 retval = sizeof ( type1->private_dict.num_family_blues );
444 if ( value && value_len >= retval )
445 *((FT_Byte *)value) = type1->private_dict.num_family_blues;
446 break;
447
448 case PS_DICT_FAMILY_BLUE:
449 if ( idx < type1->private_dict.num_family_blues )
450 {
451 retval = sizeof ( type1->private_dict.family_blues[idx] );
452 if ( value && value_len >= retval )
453 *((FT_Short *)value) = type1->private_dict.family_blues[idx];
454 }
455 break;
456
457 case PS_DICT_NUM_FAMILY_OTHER_BLUES:
458 retval = sizeof ( type1->private_dict.num_family_other_blues );
459 if ( value && value_len >= retval )
460 *((FT_Byte *)value) = type1->private_dict.num_family_other_blues;
461 break;
462
463 case PS_DICT_FAMILY_OTHER_BLUE:
464 if ( idx < type1->private_dict.num_family_other_blues )
465 {
466 retval = sizeof ( type1->private_dict.family_other_blues[idx] );
467 if ( value && value_len >= retval )
468 *((FT_Short *)value) = type1->private_dict.family_other_blues[idx];
469 }
470 break;
471
472 case PS_DICT_NUM_STEM_SNAP_H:
473 retval = sizeof ( type1->private_dict.num_snap_widths );
474 if ( value && value_len >= retval )
475 *((FT_Byte *)value) = type1->private_dict.num_snap_widths;
476 break;
477
478 case PS_DICT_STEM_SNAP_H:
479 if ( idx < type1->private_dict.num_snap_widths )
480 {
481 retval = sizeof ( type1->private_dict.snap_widths[idx] );
482 if ( value && value_len >= retval )
483 *((FT_Short *)value) = type1->private_dict.snap_widths[idx];
484 }
485 break;
486
487 case PS_DICT_NUM_STEM_SNAP_V:
488 retval = sizeof ( type1->private_dict.num_snap_heights );
489 if ( value && value_len >= retval )
490 *((FT_Byte *)value) = type1->private_dict.num_snap_heights;
491 break;
492
493 case PS_DICT_STEM_SNAP_V:
494 if ( idx < type1->private_dict.num_snap_heights )
495 {
496 retval = sizeof ( type1->private_dict.snap_heights[idx] );
497 if ( value && value_len >= retval )
498 *((FT_Short *)value) = type1->private_dict.snap_heights[idx];
499 }
500 break;
501
502 case PS_DICT_RND_STEM_UP:
503 retval = sizeof ( type1->private_dict.round_stem_up );
504 if ( value && value_len >= retval )
505 *((FT_Bool *)value) = type1->private_dict.round_stem_up;
506 break;
507
508 case PS_DICT_FORCE_BOLD:
509 retval = sizeof ( type1->private_dict.force_bold );
510 if ( value && value_len >= retval )
511 *((FT_Bool *)value) = type1->private_dict.force_bold;
512 break;
513
514 case PS_DICT_MIN_FEATURE:
515 if ( idx < sizeof ( type1->private_dict.min_feature ) /
516 sizeof ( type1->private_dict.min_feature[0] ) )
517 {
518 retval = sizeof ( type1->private_dict.min_feature[idx] );
519 if ( value && value_len >= retval )
520 *((FT_Short *)value) = type1->private_dict.min_feature[idx];
521 }
522 break;
523
524 case PS_DICT_LEN_IV:
525 retval = sizeof ( type1->private_dict.lenIV );
526 if ( value && value_len >= retval )
527 *((FT_Int *)value) = type1->private_dict.lenIV;
528 break;
529
530 case PS_DICT_PASSWORD:
531 retval = sizeof ( type1->private_dict.password );
532 if ( value && value_len >= retval )
533 *((FT_Long *)value) = type1->private_dict.password;
534 break;
535
536 case PS_DICT_LANGUAGE_GROUP:
537 retval = sizeof ( type1->private_dict.language_group );
538 if ( value && value_len >= retval )
539 *((FT_Long *)value) = type1->private_dict.language_group;
540 break;
541
542 case PS_DICT_IS_FIXED_PITCH:
543 retval = sizeof ( type1->font_info.is_fixed_pitch );
544 if ( value && value_len >= retval )
545 *((FT_Bool *)value) = type1->font_info.is_fixed_pitch;
546 break;
547
548 case PS_DICT_UNDERLINE_POSITION:
549 retval = sizeof ( type1->font_info.underline_position );
550 if ( value && value_len >= retval )
551 *((FT_Short *)value) = type1->font_info.underline_position;
552 break;
553
554 case PS_DICT_UNDERLINE_THICKNESS:
555 retval = sizeof ( type1->font_info.underline_thickness );
556 if ( value && value_len >= retval )
557 *((FT_UShort *)value) = type1->font_info.underline_thickness;
558 break;
559
560 case PS_DICT_FS_TYPE:
561 retval = sizeof ( type1->font_extra.fs_type );
562 if ( value && value_len >= retval )
563 *((FT_UShort *)value) = type1->font_extra.fs_type;
564 break;
565
566 case PS_DICT_VERSION:
567 if ( type1->font_info.version )
568 {
569 retval = ft_strlen( type1->font_info.version ) + 1;
570 if ( value && value_len >= retval )
571 ft_memcpy( value, (void *)( type1->font_info.version ), retval );
572 }
573 break;
574
575 case PS_DICT_NOTICE:
576 if ( type1->font_info.notice )
577 {
578 retval = ft_strlen( type1->font_info.notice ) + 1;
579 if ( value && value_len >= retval )
580 ft_memcpy( value, (void *)( type1->font_info.notice ), retval );
581 }
582 break;
583
584 case PS_DICT_FULL_NAME:
585 if ( type1->font_info.full_name )
586 {
587 retval = ft_strlen( type1->font_info.full_name ) + 1;
588 if ( value && value_len >= retval )
589 ft_memcpy( value, (void *)( type1->font_info.full_name ), retval );
590 }
591 break;
592
593 case PS_DICT_FAMILY_NAME:
594 if ( type1->font_info.family_name )
595 {
596 retval = ft_strlen( type1->font_info.family_name ) + 1;
597 if ( value && value_len >= retval )
598 ft_memcpy( value, (void *)( type1->font_info.family_name ),
599 retval );
600 }
601 break;
602
603 case PS_DICT_WEIGHT:
604 if ( type1->font_info.weight )
605 {
606 retval = ft_strlen( type1->font_info.weight ) + 1;
607 if ( value && value_len >= retval )
608 ft_memcpy( value, (void *)( type1->font_info.weight ), retval );
609 }
610 break;
611
612 case PS_DICT_ITALIC_ANGLE:
613 retval = sizeof ( type1->font_info.italic_angle );
614 if ( value && value_len >= retval )
615 *((FT_Long *)value) = type1->font_info.italic_angle;
616 break;
617 }
618
619 return retval == 0 ? -1 : (FT_Long)retval;
620 }
621
622
623 static const FT_Service_PsInfoRec t1_service_ps_info =
624 {
625 (PS_GetFontInfoFunc) t1_ps_get_font_info, /* ps_get_font_info */
626 (PS_GetFontExtraFunc) t1_ps_get_font_extra, /* ps_get_font_extra */
627 (PS_HasGlyphNamesFunc) t1_ps_has_glyph_names, /* ps_has_glyph_names */
628 (PS_GetFontPrivateFunc)t1_ps_get_font_private, /* ps_get_font_private */
629 (PS_GetFontValueFunc) t1_ps_get_font_value, /* ps_get_font_value */
630 };
631
632
633 #ifndef T1_CONFIG_OPTION_NO_AFM
634 static const FT_Service_KerningRec t1_service_kerning =
635 {
636 T1_Get_Track_Kerning, /* get_track */
637 };
638 #endif
639
640
641 /*
642 * PROPERTY SERVICE
643 *
644 */
645
646 FT_DEFINE_SERVICE_PROPERTIESREC(
647 t1_service_properties,
648
649 (FT_Properties_SetFunc)ps_property_set, /* set_property */
650 (FT_Properties_GetFunc)ps_property_get ) /* get_property */
651
652
653 /*
654 * SERVICE LIST
655 *
656 */
657
658 static const FT_ServiceDescRec t1_services[] =
659 {
660 { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t1_service_ps_name },
661 { FT_SERVICE_ID_GLYPH_DICT, &t1_service_glyph_dict },
662 { FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_TYPE_1 },
663 { FT_SERVICE_ID_POSTSCRIPT_INFO, &t1_service_ps_info },
664 { FT_SERVICE_ID_PROPERTIES, &t1_service_properties },
665
666 #ifndef T1_CONFIG_OPTION_NO_AFM
667 { FT_SERVICE_ID_KERNING, &t1_service_kerning },
668 #endif
669
670 #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
671 { FT_SERVICE_ID_MULTI_MASTERS, &t1_service_multi_masters },
672 #endif
673 { NULL, NULL }
674 };
675
676
677 FT_CALLBACK_DEF( FT_Module_Interface )
678 Get_Interface( FT_Module module,
679 const FT_String* t1_interface )
680 {
681 FT_UNUSED( module );
682
683 return ft_service_list_lookup( t1_services, t1_interface );
684 }
685
686
687 #ifndef T1_CONFIG_OPTION_NO_AFM
688
689 /**************************************************************************
690 *
691 * @Function:
692 * Get_Kerning
693 *
694 * @Description:
695 * A driver method used to return the kerning vector between two
696 * glyphs of the same face.
697 *
698 * @Input:
699 * face ::
700 * A handle to the source face object.
701 *
702 * left_glyph ::
703 * The index of the left glyph in the kern pair.
704 *
705 * right_glyph ::
706 * The index of the right glyph in the kern pair.
707 *
708 * @Output:
709 * kerning ::
710 * The kerning vector. This is in font units for
711 * scalable formats, and in pixels for fixed-sizes
712 * formats.
713 *
714 * @Return:
715 * FreeType error code. 0 means success.
716 *
717 * @Note:
718 * Only horizontal layouts (left-to-right & right-to-left) are
719 * supported by this function. Other layouts, or more sophisticated
720 * kernings are out of scope of this method (the basic driver
721 * interface is meant to be simple).
722 *
723 * They can be implemented by format-specific interfaces.
724 */
725 static FT_Error
726 Get_Kerning( FT_Face t1face, /* T1_Face */
727 FT_UInt left_glyph,
728 FT_UInt right_glyph,
729 FT_Vector* kerning )
730 {
731 T1_Face face = (T1_Face)t1face;
732
733
734 kerning->x = 0;
735 kerning->y = 0;
736
737 if ( face->afm_data )
738 T1_Get_Kerning( (AFM_FontInfo)face->afm_data,
739 left_glyph,
740 right_glyph,
741 kerning );
742
743 return FT_Err_Ok;
744 }
745
746
747 #endif /* T1_CONFIG_OPTION_NO_AFM */
748
749
750 FT_CALLBACK_TABLE_DEF
751 const FT_Driver_ClassRec t1_driver_class =
752 {
753 {
754 FT_MODULE_FONT_DRIVER |
755 FT_MODULE_DRIVER_SCALABLE |
756 FT_MODULE_DRIVER_HAS_HINTER,
757
758 sizeof ( PS_DriverRec ),
759
760 "type1",
761 0x10000L,
762 0x20000L,
763
764 NULL, /* module-specific interface */
765
766 T1_Driver_Init, /* FT_Module_Constructor module_init */
767 T1_Driver_Done, /* FT_Module_Destructor module_done */
768 Get_Interface, /* FT_Module_Requester get_interface */
769 },
770
771 sizeof ( T1_FaceRec ),
772 sizeof ( T1_SizeRec ),
773 sizeof ( T1_GlyphSlotRec ),
774
775 T1_Face_Init, /* FT_Face_InitFunc init_face */
776 T1_Face_Done, /* FT_Face_DoneFunc done_face */
777 T1_Size_Init, /* FT_Size_InitFunc init_size */
778 T1_Size_Done, /* FT_Size_DoneFunc done_size */
779 T1_GlyphSlot_Init, /* FT_Slot_InitFunc init_slot */
780 T1_GlyphSlot_Done, /* FT_Slot_DoneFunc done_slot */
781
782 T1_Load_Glyph, /* FT_Slot_LoadFunc load_glyph */
783
784 #ifdef T1_CONFIG_OPTION_NO_AFM
785 NULL, /* FT_Face_GetKerningFunc get_kerning */
786 NULL, /* FT_Face_AttachFunc attach_file */
787 #else
788 Get_Kerning, /* FT_Face_GetKerningFunc get_kerning */
789 T1_Read_Metrics, /* FT_Face_AttachFunc attach_file */
790 #endif
791 T1_Get_Advances, /* FT_Face_GetAdvancesFunc get_advances */
792
793 T1_Size_Request, /* FT_Size_RequestFunc request_size */
794 NULL /* FT_Size_SelectFunc select_size */
795 };
796
797
798 /* END */