1 | /**************************************************************************** |
2 | * |
3 | * cidgload.c |
4 | * |
5 | * CID-keyed Type1 Glyph Loader (body). |
6 | * |
7 | * Copyright (C) 1996-2023 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 "cidload.h" |
20 | #include "cidgload.h" |
21 | #include <freetype/internal/ftdebug.h> |
22 | #include <freetype/internal/ftstream.h> |
23 | #include <freetype/ftoutln.h> |
24 | #include <freetype/internal/ftcalc.h> |
25 | |
26 | #include <freetype/internal/psaux.h> |
27 | #include <freetype/internal/cfftypes.h> |
28 | #include <freetype/ftdriver.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 cidgload |
41 | |
42 | |
43 | /* |
44 | * A helper function to compute FD number (`fd_select`), the offset to the |
45 | * head of the glyph data (`off1`), and the offset to the and of the glyph |
46 | * data (`off2`). |
47 | * |
48 | * The number how many times `cid_get_offset` is invoked can be controlled |
49 | * by the number of non-NULL arguments. If `fd_select` is non-NULL but |
50 | * `off1` and `off2` are NULL, `cid_get_offset` is invoked only for |
51 | * `fd_select`; `off1` and `off2` are not validated. |
52 | * |
53 | */ |
54 | FT_LOCAL_DEF( FT_Error ) |
55 | cid_compute_fd_and_offsets( CID_Face face, |
56 | FT_UInt glyph_index, |
57 | FT_ULong* fd_select_p, |
58 | FT_ULong* off1_p, |
59 | FT_ULong* off2_p ) |
60 | { |
61 | FT_Error error = FT_Err_Ok; |
62 | |
63 | CID_FaceInfo cid = &face->cid; |
64 | FT_Stream stream = face->cid_stream; |
65 | FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes; |
66 | |
67 | FT_Byte* p; |
68 | FT_Bool need_frame_exit = 0; |
69 | FT_ULong fd_select, off1, off2; |
70 | |
71 | |
72 | /* For ordinary fonts, read the CID font dictionary index */ |
73 | /* and charstring offset from the CIDMap. */ |
74 | |
75 | if ( FT_STREAM_SEEK( cid->data_offset + cid->cidmap_offset + |
76 | glyph_index * entry_len ) || |
77 | FT_FRAME_ENTER( 2 * entry_len ) ) |
78 | goto Exit; |
79 | |
80 | need_frame_exit = 1; |
81 | |
82 | p = (FT_Byte*)stream->cursor; |
83 | fd_select = cid_get_offset( &p, cid->fd_bytes ); |
84 | off1 = cid_get_offset( &p, cid->gd_bytes ); |
85 | |
86 | p += cid->fd_bytes; |
87 | off2 = cid_get_offset( &p, cid->gd_bytes ); |
88 | |
89 | if ( fd_select_p ) |
90 | *fd_select_p = fd_select; |
91 | if ( off1_p ) |
92 | *off1_p = off1; |
93 | if ( off2_p ) |
94 | *off2_p = off2; |
95 | |
96 | if ( fd_select >= cid->num_dicts ) |
97 | { |
98 | /* |
99 | * fd_select == 0xFF is often used to indicate that the CID |
100 | * has no charstring to be rendered, similar to GID = 0xFFFF |
101 | * in TrueType fonts. |
102 | */ |
103 | if ( ( cid->fd_bytes == 1 && fd_select == 0xFFU ) || |
104 | ( cid->fd_bytes == 2 && fd_select == 0xFFFFU ) ) |
105 | { |
106 | FT_TRACE1(( "cid_load_glyph: fail for glyph index %d:\n" , |
107 | glyph_index )); |
108 | FT_TRACE1(( " FD number %ld is the maximum\n" , |
109 | fd_select )); |
110 | FT_TRACE1(( " integer fitting into %d byte%s\n" , |
111 | cid->fd_bytes, cid->fd_bytes == 1 ? "" : "s" )); |
112 | } |
113 | else |
114 | { |
115 | FT_TRACE0(( "cid_load_glyph: fail for glyph index %d:\n" , |
116 | glyph_index )); |
117 | FT_TRACE0(( " FD number %ld is larger\n" , |
118 | fd_select )); |
119 | FT_TRACE0(( " than number of dictionaries (%d)\n" , |
120 | cid->num_dicts )); |
121 | } |
122 | |
123 | error = FT_THROW( Invalid_Offset ); |
124 | goto Exit; |
125 | } |
126 | else if ( off2 > stream->size ) |
127 | { |
128 | FT_TRACE0(( "cid_load_glyph: fail for glyph index %d:\n" , |
129 | glyph_index )); |
130 | FT_TRACE0(( " end of the glyph data\n" )); |
131 | FT_TRACE0(( " is beyond the data stream\n" )); |
132 | |
133 | error = FT_THROW( Invalid_Offset ); |
134 | goto Exit; |
135 | } |
136 | else if ( off1 > off2 ) |
137 | { |
138 | FT_TRACE0(( "cid_load_glyph: fail for glyph index %d:\n" , |
139 | glyph_index )); |
140 | FT_TRACE0(( " the end position of glyph data\n" )); |
141 | FT_TRACE0(( " is set before the start position\n" )); |
142 | |
143 | error = FT_THROW( Invalid_Offset ); |
144 | } |
145 | |
146 | Exit: |
147 | if ( need_frame_exit ) |
148 | FT_FRAME_EXIT(); |
149 | |
150 | return error; |
151 | } |
152 | |
153 | |
154 | FT_CALLBACK_DEF( FT_Error ) |
155 | cid_load_glyph( T1_Decoder decoder, |
156 | FT_UInt glyph_index ) |
157 | { |
158 | CID_Face face = (CID_Face)decoder->builder.face; |
159 | CID_FaceInfo cid = &face->cid; |
160 | FT_Byte* p; |
161 | FT_ULong fd_select; |
162 | FT_Stream stream = face->cid_stream; |
163 | FT_Error error = FT_Err_Ok; |
164 | FT_Byte* charstring = NULL; |
165 | FT_Memory memory = face->root.memory; |
166 | FT_ULong glyph_length = 0; |
167 | PSAux_Service psaux = (PSAux_Service)face->psaux; |
168 | |
169 | FT_Bool force_scaling = FALSE; |
170 | |
171 | #ifdef FT_CONFIG_OPTION_INCREMENTAL |
172 | FT_Incremental_InterfaceRec *inc = |
173 | face->root.internal->incremental_interface; |
174 | #endif |
175 | |
176 | |
177 | FT_TRACE1(( "cid_load_glyph: glyph index %u\n" , glyph_index )); |
178 | |
179 | #ifdef FT_CONFIG_OPTION_INCREMENTAL |
180 | |
181 | /* For incremental fonts get the character data using */ |
182 | /* the callback function. */ |
183 | if ( inc ) |
184 | { |
185 | FT_Data glyph_data; |
186 | |
187 | |
188 | error = inc->funcs->get_glyph_data( inc->object, |
189 | glyph_index, &glyph_data ); |
190 | if ( error || glyph_data.length < cid->fd_bytes ) |
191 | goto Exit; |
192 | |
193 | p = (FT_Byte*)glyph_data.pointer; |
194 | fd_select = cid_get_offset( &p, cid->fd_bytes ); |
195 | |
196 | glyph_length = glyph_data.length - cid->fd_bytes; |
197 | |
198 | if ( !FT_QALLOC( charstring, glyph_length ) ) |
199 | FT_MEM_COPY( charstring, glyph_data.pointer + cid->fd_bytes, |
200 | glyph_length ); |
201 | |
202 | inc->funcs->free_glyph_data( inc->object, &glyph_data ); |
203 | |
204 | if ( error ) |
205 | goto Exit; |
206 | } |
207 | |
208 | else |
209 | |
210 | #endif /* FT_CONFIG_OPTION_INCREMENTAL */ |
211 | { |
212 | FT_ULong off1, off2; |
213 | |
214 | |
215 | error = cid_compute_fd_and_offsets( face, glyph_index, |
216 | &fd_select, &off1, &off2 ); |
217 | if ( error ) |
218 | goto Exit; |
219 | |
220 | glyph_length = off2 - off1; |
221 | |
222 | if ( glyph_length == 0 || |
223 | FT_QALLOC( charstring, glyph_length ) || |
224 | FT_STREAM_READ_AT( cid->data_offset + off1, |
225 | charstring, glyph_length ) ) |
226 | goto Exit; |
227 | } |
228 | |
229 | /* Now set up the subrs array and parse the charstrings. */ |
230 | { |
231 | CID_FaceDict dict; |
232 | CID_Subrs cid_subrs = face->subrs + fd_select; |
233 | FT_UInt cs_offset; |
234 | |
235 | |
236 | /* Set up subrs */ |
237 | decoder->num_subrs = cid_subrs->num_subrs; |
238 | decoder->subrs = cid_subrs->code; |
239 | decoder->subrs_len = 0; |
240 | decoder->subrs_hash = NULL; |
241 | |
242 | /* Set up font matrix */ |
243 | dict = cid->font_dicts + fd_select; |
244 | |
245 | decoder->font_matrix = dict->font_matrix; |
246 | decoder->font_offset = dict->font_offset; |
247 | decoder->lenIV = dict->private_dict.lenIV; |
248 | |
249 | /* Decode the charstring. */ |
250 | |
251 | /* Adjustment for seed bytes. */ |
252 | cs_offset = decoder->lenIV >= 0 ? (FT_UInt)decoder->lenIV : 0; |
253 | if ( cs_offset > glyph_length ) |
254 | { |
255 | FT_TRACE0(( "cid_load_glyph: fail for glyph_index=%d, " |
256 | "offset to the charstring is beyond glyph length\n" , |
257 | glyph_index )); |
258 | error = FT_THROW( Invalid_Offset ); |
259 | goto Exit; |
260 | } |
261 | |
262 | /* Decrypt only if lenIV >= 0. */ |
263 | if ( decoder->lenIV >= 0 ) |
264 | psaux->t1_decrypt( charstring, glyph_length, 4330 ); |
265 | |
266 | /* choose which renderer to use */ |
267 | #ifdef T1_CONFIG_OPTION_OLD_ENGINE |
268 | if ( ( (PS_Driver)FT_FACE_DRIVER( face ) )->hinting_engine == |
269 | FT_HINTING_FREETYPE || |
270 | decoder->builder.metrics_only ) |
271 | error = psaux->t1_decoder_funcs->parse_charstrings_old( |
272 | decoder, |
273 | charstring + cs_offset, |
274 | glyph_length - cs_offset ); |
275 | #else |
276 | if ( decoder->builder.metrics_only ) |
277 | error = psaux->t1_decoder_funcs->parse_metrics( |
278 | decoder, |
279 | charstring + cs_offset, |
280 | glyph_length - cs_offset ); |
281 | #endif |
282 | else |
283 | { |
284 | PS_Decoder psdecoder; |
285 | CFF_SubFontRec subfont; |
286 | |
287 | |
288 | psaux->ps_decoder_init( &psdecoder, decoder, TRUE ); |
289 | |
290 | psaux->t1_make_subfont( FT_FACE( face ), |
291 | &dict->private_dict, |
292 | &subfont ); |
293 | psdecoder.current_subfont = &subfont; |
294 | |
295 | error = psaux->t1_decoder_funcs->parse_charstrings( |
296 | &psdecoder, |
297 | charstring + cs_offset, |
298 | glyph_length - cs_offset ); |
299 | |
300 | /* Adobe's engine uses 16.16 numbers everywhere; */ |
301 | /* as a consequence, glyphs larger than 2000ppem get rejected */ |
302 | if ( FT_ERR_EQ( error, Glyph_Too_Big ) ) |
303 | { |
304 | /* this time, we retry unhinted and scale up the glyph later on */ |
305 | /* (the engine uses and sets the hardcoded value 0x10000 / 64 = */ |
306 | /* 0x400 for both `x_scale' and `y_scale' in this case) */ |
307 | ((CID_GlyphSlot)decoder->builder.glyph)->hint = FALSE; |
308 | |
309 | force_scaling = TRUE; |
310 | |
311 | error = psaux->t1_decoder_funcs->parse_charstrings( |
312 | &psdecoder, |
313 | charstring + cs_offset, |
314 | glyph_length - cs_offset ); |
315 | } |
316 | } |
317 | } |
318 | |
319 | #ifdef FT_CONFIG_OPTION_INCREMENTAL |
320 | |
321 | /* Incremental fonts can optionally override the metrics. */ |
322 | if ( !error && inc && inc->funcs->get_glyph_metrics ) |
323 | { |
324 | FT_Incremental_MetricsRec metrics; |
325 | |
326 | |
327 | metrics.bearing_x = FIXED_TO_INT( decoder->builder.left_bearing.x ); |
328 | metrics.bearing_y = 0; |
329 | metrics.advance = FIXED_TO_INT( decoder->builder.advance.x ); |
330 | metrics.advance_v = FIXED_TO_INT( decoder->builder.advance.y ); |
331 | |
332 | error = inc->funcs->get_glyph_metrics( inc->object, |
333 | glyph_index, FALSE, &metrics ); |
334 | |
335 | decoder->builder.left_bearing.x = INT_TO_FIXED( metrics.bearing_x ); |
336 | decoder->builder.advance.x = INT_TO_FIXED( metrics.advance ); |
337 | decoder->builder.advance.y = INT_TO_FIXED( metrics.advance_v ); |
338 | } |
339 | |
340 | #endif /* FT_CONFIG_OPTION_INCREMENTAL */ |
341 | |
342 | Exit: |
343 | FT_FREE( charstring ); |
344 | |
345 | ((CID_GlyphSlot)decoder->builder.glyph)->scaled = force_scaling; |
346 | |
347 | return error; |
348 | } |
349 | |
350 | |
351 | #if 0 |
352 | |
353 | |
354 | /*************************************************************************/ |
355 | /*************************************************************************/ |
356 | /*************************************************************************/ |
357 | /********** *********/ |
358 | /********** *********/ |
359 | /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/ |
360 | /********** *********/ |
361 | /********** The following code is in charge of computing *********/ |
362 | /********** the maximum advance width of the font. It *********/ |
363 | /********** quickly processes each glyph charstring to *********/ |
364 | /********** extract the value from either a `sbw' or `seac' *********/ |
365 | /********** operator. *********/ |
366 | /********** *********/ |
367 | /*************************************************************************/ |
368 | /*************************************************************************/ |
369 | /*************************************************************************/ |
370 | |
371 | |
372 | FT_LOCAL_DEF( FT_Error ) |
373 | cid_face_compute_max_advance( CID_Face face, |
374 | FT_Int* max_advance ) |
375 | { |
376 | FT_Error error; |
377 | T1_DecoderRec decoder; |
378 | FT_Int glyph_index; |
379 | |
380 | PSAux_Service psaux = (PSAux_Service)face->psaux; |
381 | |
382 | |
383 | *max_advance = 0; |
384 | |
385 | /* Initialize load decoder */ |
386 | error = psaux->t1_decoder_funcs->init( &decoder, |
387 | (FT_Face)face, |
388 | 0, /* size */ |
389 | 0, /* glyph slot */ |
390 | 0, /* glyph names! XXX */ |
391 | 0, /* blend == 0 */ |
392 | 0, /* hinting == 0 */ |
393 | cid_load_glyph ); |
394 | if ( error ) |
395 | return error; |
396 | |
397 | /* TODO: initialize decoder.len_buildchar and decoder.buildchar */ |
398 | /* if we ever support CID-keyed multiple master fonts */ |
399 | |
400 | decoder.builder.metrics_only = 1; |
401 | decoder.builder.load_points = 0; |
402 | |
403 | /* for each glyph, parse the glyph charstring and extract */ |
404 | /* the advance width */ |
405 | for ( glyph_index = 0; glyph_index < face->root.num_glyphs; |
406 | glyph_index++ ) |
407 | { |
408 | /* now get load the unscaled outline */ |
409 | error = cid_load_glyph( &decoder, glyph_index ); |
410 | /* ignore the error if one occurred - skip to next glyph */ |
411 | } |
412 | |
413 | *max_advance = FIXED_TO_INT( decoder.builder.advance.x ); |
414 | |
415 | psaux->t1_decoder_funcs->done( &decoder ); |
416 | |
417 | return FT_Err_Ok; |
418 | } |
419 | |
420 | |
421 | #endif /* 0 */ |
422 | |
423 | |
424 | FT_LOCAL_DEF( FT_Error ) |
425 | cid_slot_load_glyph( FT_GlyphSlot cidglyph, /* CID_GlyphSlot */ |
426 | FT_Size cidsize, /* CID_Size */ |
427 | FT_UInt glyph_index, |
428 | FT_Int32 load_flags ) |
429 | { |
430 | CID_GlyphSlot glyph = (CID_GlyphSlot)cidglyph; |
431 | FT_Error error; |
432 | T1_DecoderRec decoder; |
433 | CID_Face face = (CID_Face)cidglyph->face; |
434 | FT_Bool hinting; |
435 | FT_Bool scaled; |
436 | |
437 | PSAux_Service psaux = (PSAux_Service)face->psaux; |
438 | FT_Matrix font_matrix; |
439 | FT_Vector font_offset; |
440 | FT_Bool must_finish_decoder = FALSE; |
441 | |
442 | |
443 | if ( glyph_index >= (FT_UInt)face->root.num_glyphs ) |
444 | { |
445 | error = FT_THROW( Invalid_Argument ); |
446 | goto Exit; |
447 | } |
448 | |
449 | if ( load_flags & FT_LOAD_NO_RECURSE ) |
450 | load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; |
451 | |
452 | glyph->x_scale = cidsize->metrics.x_scale; |
453 | glyph->y_scale = cidsize->metrics.y_scale; |
454 | |
455 | cidglyph->outline.n_points = 0; |
456 | cidglyph->outline.n_contours = 0; |
457 | |
458 | hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 && |
459 | ( load_flags & FT_LOAD_NO_HINTING ) == 0 ); |
460 | scaled = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ); |
461 | |
462 | glyph->hint = hinting; |
463 | glyph->scaled = scaled; |
464 | cidglyph->format = FT_GLYPH_FORMAT_OUTLINE; |
465 | |
466 | error = psaux->t1_decoder_funcs->init( &decoder, |
467 | cidglyph->face, |
468 | cidsize, |
469 | cidglyph, |
470 | 0, /* glyph names -- XXX */ |
471 | 0, /* blend == 0 */ |
472 | hinting, |
473 | FT_LOAD_TARGET_MODE( load_flags ), |
474 | cid_load_glyph ); |
475 | if ( error ) |
476 | goto Exit; |
477 | |
478 | /* TODO: initialize decoder.len_buildchar and decoder.buildchar */ |
479 | /* if we ever support CID-keyed multiple master fonts */ |
480 | |
481 | must_finish_decoder = TRUE; |
482 | |
483 | /* set up the decoder */ |
484 | decoder.builder.no_recurse = FT_BOOL( load_flags & FT_LOAD_NO_RECURSE ); |
485 | |
486 | error = cid_load_glyph( &decoder, glyph_index ); |
487 | if ( error ) |
488 | goto Exit; |
489 | |
490 | /* copy flags back for forced scaling */ |
491 | hinting = glyph->hint; |
492 | scaled = glyph->scaled; |
493 | |
494 | font_matrix = decoder.font_matrix; |
495 | font_offset = decoder.font_offset; |
496 | |
497 | /* save new glyph tables */ |
498 | psaux->t1_decoder_funcs->done( &decoder ); |
499 | |
500 | must_finish_decoder = FALSE; |
501 | |
502 | /* now set the metrics -- this is rather simple, as */ |
503 | /* the left side bearing is the xMin, and the top side */ |
504 | /* bearing the yMax */ |
505 | cidglyph->outline.flags &= FT_OUTLINE_OWNER; |
506 | cidglyph->outline.flags |= FT_OUTLINE_REVERSE_FILL; |
507 | |
508 | /* for composite glyphs, return only left side bearing and */ |
509 | /* advance width */ |
510 | if ( load_flags & FT_LOAD_NO_RECURSE ) |
511 | { |
512 | FT_Slot_Internal internal = cidglyph->internal; |
513 | |
514 | |
515 | cidglyph->metrics.horiBearingX = |
516 | FIXED_TO_INT( decoder.builder.left_bearing.x ); |
517 | cidglyph->metrics.horiAdvance = |
518 | FIXED_TO_INT( decoder.builder.advance.x ); |
519 | |
520 | internal->glyph_matrix = font_matrix; |
521 | internal->glyph_delta = font_offset; |
522 | internal->glyph_transformed = 1; |
523 | } |
524 | else |
525 | { |
526 | FT_BBox cbox; |
527 | FT_Glyph_Metrics* metrics = &cidglyph->metrics; |
528 | |
529 | |
530 | /* copy the _unscaled_ advance width */ |
531 | metrics->horiAdvance = |
532 | FIXED_TO_INT( decoder.builder.advance.x ); |
533 | cidglyph->linearHoriAdvance = |
534 | FIXED_TO_INT( decoder.builder.advance.x ); |
535 | cidglyph->internal->glyph_transformed = 0; |
536 | |
537 | /* make up vertical ones */ |
538 | metrics->vertAdvance = ( face->cid.font_bbox.yMax - |
539 | face->cid.font_bbox.yMin ) >> 16; |
540 | cidglyph->linearVertAdvance = metrics->vertAdvance; |
541 | |
542 | cidglyph->format = FT_GLYPH_FORMAT_OUTLINE; |
543 | |
544 | if ( cidsize->metrics.y_ppem < 24 ) |
545 | cidglyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION; |
546 | |
547 | /* apply the font matrix, if any */ |
548 | if ( font_matrix.xx != 0x10000L || font_matrix.yy != 0x10000L || |
549 | font_matrix.xy != 0 || font_matrix.yx != 0 ) |
550 | { |
551 | FT_Outline_Transform( &cidglyph->outline, &font_matrix ); |
552 | |
553 | metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, |
554 | font_matrix.xx ); |
555 | metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, |
556 | font_matrix.yy ); |
557 | } |
558 | |
559 | if ( font_offset.x || font_offset.y ) |
560 | { |
561 | FT_Outline_Translate( &cidglyph->outline, |
562 | font_offset.x, |
563 | font_offset.y ); |
564 | |
565 | metrics->horiAdvance += font_offset.x; |
566 | metrics->vertAdvance += font_offset.y; |
567 | } |
568 | |
569 | if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 || scaled ) |
570 | { |
571 | /* scale the outline and the metrics */ |
572 | FT_Int n; |
573 | FT_Outline* cur = decoder.builder.base; |
574 | FT_Vector* vec = cur->points; |
575 | FT_Fixed x_scale = glyph->x_scale; |
576 | FT_Fixed y_scale = glyph->y_scale; |
577 | |
578 | |
579 | /* First of all, scale the points */ |
580 | if ( !hinting || !decoder.builder.hints_funcs ) |
581 | for ( n = cur->n_points; n > 0; n--, vec++ ) |
582 | { |
583 | vec->x = FT_MulFix( vec->x, x_scale ); |
584 | vec->y = FT_MulFix( vec->y, y_scale ); |
585 | } |
586 | |
587 | /* Then scale the metrics */ |
588 | metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); |
589 | metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); |
590 | } |
591 | |
592 | /* compute the other metrics */ |
593 | FT_Outline_Get_CBox( &cidglyph->outline, &cbox ); |
594 | |
595 | metrics->width = cbox.xMax - cbox.xMin; |
596 | metrics->height = cbox.yMax - cbox.yMin; |
597 | |
598 | metrics->horiBearingX = cbox.xMin; |
599 | metrics->horiBearingY = cbox.yMax; |
600 | |
601 | if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) |
602 | { |
603 | /* make up vertical ones */ |
604 | ft_synthesize_vertical_metrics( metrics, |
605 | metrics->vertAdvance ); |
606 | } |
607 | } |
608 | |
609 | Exit: |
610 | |
611 | if ( must_finish_decoder ) |
612 | psaux->t1_decoder_funcs->done( &decoder ); |
613 | |
614 | return error; |
615 | } |
616 | |
617 | |
618 | /* END */ |
619 | |