← Back to branch summary

~ubuntu-branches/ubuntu/trusty/harfbuzz/trusty-proposed

« back to all changes in this revision

Viewing changes to src/hb-old/harfbuzz-gsub-private.h

  • Committer: Package Import Robot
  • Author(s): Emilio Pozuelo Monfort
  • Date: 2013-12-04 17:49:59 UTC
  • mfrom: (1.1.10)
  • Revision ID: package-import@ubuntu.com-20131204174959-go84s7f2wvd8umga
Tags: 0.9.24-2
* debian/control:
  + Add missing breaks/replaces on libharfbuzz0a.

Show diffs side-by-side

added added

removed removed

Lines of Context:
src/hb-old/harfbuzz-gsub-private.h
1
 
/*
2
 
 * Copyright (C) 1998-2004  David Turner and Werner Lemberg
3
 
 * Copyright (C) 2006  Behdad Esfahbod
4
 
 *
5
 
 * This is part of HarfBuzz, an OpenType Layout engine library.
6
 
 *
7
 
 * Permission is hereby granted, without written agreement and without
8
 
 * license or royalty fees, to use, copy, modify, and distribute this
9
 
 * software and its documentation for any purpose, provided that the
10
 
 * above copyright notice and the following two paragraphs appear in
11
 
 * all copies of this software.
12
 
 *
13
 
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
14
 
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
15
 
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
16
 
 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
17
 
 * DAMAGE.
18
 
 *
19
 
 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
20
 
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
21
 
 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
22
 
 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
23
 
 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
24
 
 */
25
 
 
26
 
#ifndef HARFBUZZ_GSUB_PRIVATE_H
27
 
#define HARFBUZZ_GSUB_PRIVATE_H
28
 
 
29
 
#include "harfbuzz-impl.h"
30
 
#include "harfbuzz-stream-private.h"
31
 
#include "harfbuzz-gsub.h"
32
 
 
33
 
HB_BEGIN_HEADER
34
 
 
35
 
#ifdef HB_USE_PACKED_STRUCTS
36
 
#pragma pack(push, 1)
37
 
#endif
38
 
 
39
 
typedef union HB_GSUB_SubTable_  HB_GSUB_SubTable;
40
 
 
41
 
/* LookupType 1 */
42
 
 
43
 
struct  HB_SingleSubstFormat1_
44
 
{
45
 
  HB_Short  DeltaGlyphID;             /* constant added to get
46
 
                                         substitution glyph index */
47
 
};
48
 
 
49
 
typedef struct HB_SingleSubstFormat1_  HB_SingleSubstFormat1;
50
 
 
51
 
 
52
 
struct  HB_SingleSubstFormat2_
53
 
{
54
 
  HB_UShort*  Substitute;             /* array of substitute glyph IDs */
55
 
  HB_UShort   GlyphCount;             /* number of glyph IDs in
56
 
                                         Substitute array              */
57
 
};
58
 
 
59
 
typedef struct HB_SingleSubstFormat2_  HB_SingleSubstFormat2;
60
 
 
61
 
 
62
 
struct  HB_SingleSubst_
63
 
{
64
 
  union
65
 
  {
66
 
    HB_SingleSubstFormat1  ssf1;
67
 
    HB_SingleSubstFormat2  ssf2;
68
 
  } ssf;
69
 
 
70
 
  HB_Coverage  Coverage;             /* Coverage table */
71
 
  HB_Byte     SubstFormat;            /* 1 or 2         */
72
 
};
73
 
 
74
 
typedef struct HB_SingleSubst_  HB_SingleSubst;
75
 
 
76
 
 
77
 
/* LookupType 2 */
78
 
 
79
 
struct  HB_Sequence_
80
 
{
81
 
  HB_UShort*  Substitute;             /* string of glyph IDs to
82
 
                                         substitute                 */
83
 
  HB_UShort   GlyphCount;             /* number of glyph IDs in the
84
 
                                         Substitute array           */
85
 
};
86
 
 
87
 
typedef struct HB_Sequence_  HB_Sequence;
88
 
 
89
 
 
90
 
struct  HB_MultipleSubst_
91
 
{
92
 
  HB_Sequence*  Sequence;            /* array of Sequence tables  */
93
 
  HB_Coverage   Coverage;            /* Coverage table            */
94
 
  HB_UShort      SubstFormat;         /* always 1                  */
95
 
  HB_UShort      SequenceCount;       /* number of Sequence tables */
96
 
};
97
 
 
98
 
typedef struct HB_MultipleSubst_  HB_MultipleSubst;
99
 
 
100
 
 
101
 
/* LookupType 3 */
102
 
 
103
 
struct  HB_AlternateSet_
104
 
{
105
 
  HB_UShort*  Alternate;              /* array of alternate glyph IDs */
106
 
  HB_UShort   GlyphCount;             /* number of glyph IDs in the
107
 
                                         Alternate array              */
108
 
};
109
 
 
110
 
typedef struct HB_AlternateSet_  HB_AlternateSet;
111
 
 
112
 
 
113
 
struct  HB_AlternateSubst_
114
 
{
115
 
  HB_AlternateSet*  AlternateSet;    /* array of AlternateSet tables  */
116
 
  HB_Coverage       Coverage;        /* Coverage table                */
117
 
  HB_UShort          SubstFormat;     /* always 1                      */
118
 
  HB_UShort          AlternateSetCount;
119
 
                                      /* number of AlternateSet tables */
120
 
};
121
 
 
122
 
typedef struct HB_AlternateSubst_  HB_AlternateSubst;
123
 
 
124
 
 
125
 
/* LookupType 4 */
126
 
 
127
 
struct  HB_Ligature_
128
 
{
129
 
  HB_UShort*  Component;              /* array of component glyph IDs     */
130
 
  HB_UShort   LigGlyph;               /* glyphID of ligature
131
 
                                         to substitute                    */
132
 
  HB_UShort   ComponentCount;         /* number of components in ligature */
133
 
};
134
 
 
135
 
typedef struct HB_Ligature_  HB_Ligature;
136
 
 
137
 
 
138
 
struct  HB_LigatureSet_
139
 
{
140
 
  HB_Ligature*  Ligature;            /* array of Ligature tables  */
141
 
  HB_UShort      LigatureCount;       /* number of Ligature tables */
142
 
};
143
 
 
144
 
typedef struct HB_LigatureSet_  HB_LigatureSet;
145
 
 
146
 
 
147
 
struct  HB_LigatureSubst_
148
 
{
149
 
  HB_LigatureSet*  LigatureSet;      /* array of LigatureSet tables  */
150
 
  HB_Coverage      Coverage;         /* Coverage table               */
151
 
  HB_UShort         SubstFormat;      /* always 1                     */
152
 
  HB_UShort         LigatureSetCount; /* number of LigatureSet tables */
153
 
};
154
 
 
155
 
typedef struct HB_LigatureSubst_  HB_LigatureSubst;
156
 
 
157
 
 
158
 
/* needed by both lookup type 5 and 6 */
159
 
 
160
 
struct  HB_SubstLookupRecord_
161
 
{
162
 
  HB_UShort  SequenceIndex;           /* index into current
163
 
                                         glyph sequence               */
164
 
  HB_UShort  LookupListIndex;         /* Lookup to apply to that pos. */
165
 
};
166
 
 
167
 
typedef struct HB_SubstLookupRecord_  HB_SubstLookupRecord;
168
 
 
169
 
 
170
 
/* LookupType 5 */
171
 
 
172
 
struct  HB_SubRule_
173
 
{
174
 
  HB_UShort*              Input;      /* array of input glyph IDs     */
175
 
  HB_SubstLookupRecord*  SubstLookupRecord;
176
 
                                      /* array of SubstLookupRecord
177
 
                                         tables                       */
178
 
  HB_UShort               GlyphCount; /* total number of input glyphs */
179
 
  HB_UShort               SubstCount; /* number of SubstLookupRecord
180
 
                                         tables                       */
181
 
};
182
 
 
183
 
typedef struct HB_SubRule_  HB_SubRule;
184
 
 
185
 
 
186
 
struct  HB_SubRuleSet_
187
 
{
188
 
  HB_SubRule*  SubRule;              /* array of SubRule tables  */
189
 
  HB_UShort     SubRuleCount;         /* number of SubRule tables */
190
 
};
191
 
 
192
 
typedef struct HB_SubRuleSet_  HB_SubRuleSet;
193
 
 
194
 
 
195
 
struct  HB_ContextSubstFormat1_
196
 
{
197
 
  HB_SubRuleSet*  SubRuleSet;        /* array of SubRuleSet tables  */
198
 
  HB_Coverage     Coverage;          /* Coverage table              */
199
 
  HB_UShort        SubRuleSetCount;   /* number of SubRuleSet tables */
200
 
};
201
 
 
202
 
typedef struct HB_ContextSubstFormat1_  HB_ContextSubstFormat1;
203
 
 
204
 
 
205
 
struct  HB_SubClassRule_
206
 
{
207
 
  HB_UShort*              Class;      /* array of classes                */
208
 
  HB_SubstLookupRecord*  SubstLookupRecord;
209
 
                                      /* array of SubstLookupRecord
210
 
                                         tables                          */
211
 
  HB_UShort               GlyphCount; /* total number of context classes */
212
 
  HB_UShort               SubstCount; /* number of SubstLookupRecord
213
 
                                         tables                          */
214
 
};
215
 
 
216
 
typedef struct HB_SubClassRule_  HB_SubClassRule;
217
 
 
218
 
 
219
 
struct  HB_SubClassSet_
220
 
{
221
 
  HB_SubClassRule*  SubClassRule;    /* array of SubClassRule tables  */
222
 
  HB_UShort          SubClassRuleCount;
223
 
                                      /* number of SubClassRule tables */
224
 
};
225
 
 
226
 
typedef struct HB_SubClassSet_  HB_SubClassSet;
227
 
 
228
 
 
229
 
/* The `MaxContextLength' field is not defined in the TTO specification
230
 
   but simplifies the implementation of this format.  It holds the
231
 
   maximal context length used in the context rules.                    */
232
 
 
233
 
struct  HB_ContextSubstFormat2_
234
 
{
235
 
  HB_SubClassSet*     SubClassSet;   /* array of SubClassSet tables  */
236
 
  HB_Coverage         Coverage;      /* Coverage table               */
237
 
  HB_ClassDefinition  ClassDef;      /* ClassDef table               */
238
 
  HB_UShort            SubClassSetCount;
239
 
                                      /* number of SubClassSet tables */
240
 
  HB_UShort            MaxContextLength;
241
 
                                      /* maximal context length       */
242
 
};
243
 
 
244
 
typedef struct HB_ContextSubstFormat2_  HB_ContextSubstFormat2;
245
 
 
246
 
 
247
 
struct  HB_ContextSubstFormat3_
248
 
{
249
 
  HB_Coverage*           Coverage;   /* array of Coverage tables      */
250
 
  HB_SubstLookupRecord*  SubstLookupRecord;
251
 
                                      /* array of substitution lookups */
252
 
  HB_UShort               GlyphCount; /* number of input glyphs        */
253
 
  HB_UShort               SubstCount; /* number of SubstLookupRecords  */
254
 
};
255
 
 
256
 
typedef struct HB_ContextSubstFormat3_  HB_ContextSubstFormat3;
257
 
 
258
 
 
259
 
struct  HB_ContextSubst_
260
 
{
261
 
  union
262
 
  {
263
 
    HB_ContextSubstFormat1  csf1;
264
 
    HB_ContextSubstFormat2  csf2;
265
 
    HB_ContextSubstFormat3  csf3;
266
 
  } csf;
267
 
 
268
 
  HB_Byte  SubstFormat;               /* 1, 2, or 3 */
269
 
};
270
 
 
271
 
typedef struct HB_ContextSubst_  HB_ContextSubst;
272
 
 
273
 
 
274
 
/* LookupType 6 */
275
 
 
276
 
struct  HB_ChainSubRule_
277
 
{
278
 
  HB_UShort*              Backtrack;  /* array of backtrack glyph IDs     */
279
 
  HB_UShort*              Input;      /* array of input glyph IDs         */
280
 
  HB_UShort*              Lookahead;  /* array of lookahead glyph IDs     */
281
 
  HB_SubstLookupRecord*  SubstLookupRecord;
282
 
                                      /* array of SubstLookupRecords      */
283
 
  HB_UShort               BacktrackGlyphCount;
284
 
                                      /* total number of backtrack glyphs */
285
 
  HB_UShort               InputGlyphCount;
286
 
                                      /* total number of input glyphs     */
287
 
  HB_UShort               LookaheadGlyphCount;
288
 
                                      /* total number of lookahead glyphs */
289
 
  HB_UShort               SubstCount; /* number of SubstLookupRecords     */
290
 
};
291
 
 
292
 
typedef struct HB_ChainSubRule_  HB_ChainSubRule;
293
 
 
294
 
 
295
 
struct  HB_ChainSubRuleSet_
296
 
{
297
 
  HB_ChainSubRule*  ChainSubRule;    /* array of ChainSubRule tables  */
298
 
  HB_UShort          ChainSubRuleCount;
299
 
                                      /* number of ChainSubRule tables */
300
 
};
301
 
 
302
 
typedef struct HB_ChainSubRuleSet_  HB_ChainSubRuleSet;
303
 
 
304
 
 
305
 
struct  HB_ChainContextSubstFormat1_
306
 
{
307
 
  HB_ChainSubRuleSet*  ChainSubRuleSet;
308
 
                                      /* array of ChainSubRuleSet tables  */
309
 
  HB_Coverage          Coverage;     /* Coverage table                   */
310
 
  HB_UShort             ChainSubRuleSetCount;
311
 
                                      /* number of ChainSubRuleSet tables */
312
 
};
313
 
 
314
 
typedef struct HB_ChainContextSubstFormat1_  HB_ChainContextSubstFormat1;
315
 
 
316
 
 
317
 
struct  HB_ChainSubClassRule_
318
 
{
319
 
  HB_UShort*              Backtrack;  /* array of backtrack classes      */
320
 
  HB_UShort*              Input;      /* array of context classes        */
321
 
  HB_UShort*              Lookahead;  /* array of lookahead classes      */
322
 
  HB_SubstLookupRecord*  SubstLookupRecord;
323
 
                                      /* array of substitution lookups   */
324
 
  HB_UShort               BacktrackGlyphCount;
325
 
                                      /* total number of backtrack
326
 
                                         classes                         */
327
 
  HB_UShort               InputGlyphCount;
328
 
                                      /* total number of context classes */
329
 
  HB_UShort               LookaheadGlyphCount;
330
 
                                      /* total number of lookahead
331
 
                                         classes                         */
332
 
  HB_UShort               SubstCount; /* number of SubstLookupRecords    */
333
 
};
334
 
 
335
 
typedef struct HB_ChainSubClassRule_  HB_ChainSubClassRule;
336
 
 
337
 
 
338
 
struct  HB_ChainSubClassSet_
339
 
{
340
 
  HB_ChainSubClassRule*  ChainSubClassRule;
341
 
                                      /* array of ChainSubClassRule
342
 
                                         tables                      */
343
 
  HB_UShort               ChainSubClassRuleCount;
344
 
                                      /* number of ChainSubClassRule
345
 
                                         tables                      */
346
 
};
347
 
 
348
 
typedef struct HB_ChainSubClassSet_  HB_ChainSubClassSet;
349
 
 
350
 
 
351
 
/* The `MaxXXXLength' fields are not defined in the TTO specification
352
 
   but simplifies the implementation of this format.  It holds the
353
 
   maximal context length used in the specific context rules.         */
354
 
 
355
 
struct  HB_ChainContextSubstFormat2_
356
 
{
357
 
  HB_ChainSubClassSet*  ChainSubClassSet;
358
 
                                      /* array of ChainSubClassSet
359
 
                                         tables                     */
360
 
  HB_Coverage           Coverage;    /* Coverage table             */
361
 
 
362
 
  HB_ClassDefinition    BacktrackClassDef;
363
 
                                      /* BacktrackClassDef table    */
364
 
  HB_ClassDefinition    InputClassDef;
365
 
                                      /* InputClassDef table        */
366
 
  HB_ClassDefinition    LookaheadClassDef;
367
 
                                      /* LookaheadClassDef table    */
368
 
 
369
 
  HB_UShort              ChainSubClassSetCount;
370
 
                                      /* number of ChainSubClassSet
371
 
                                         tables                     */
372
 
  HB_UShort              MaxBacktrackLength;
373
 
                                      /* maximal backtrack length   */
374
 
  HB_UShort              MaxLookaheadLength;
375
 
                                      /* maximal lookahead length   */
376
 
  HB_UShort              MaxInputLength;
377
 
                                      /* maximal input length       */
378
 
};
379
 
 
380
 
typedef struct HB_ChainContextSubstFormat2_  HB_ChainContextSubstFormat2;
381
 
 
382
 
 
383
 
struct  HB_ChainContextSubstFormat3_
384
 
{
385
 
  HB_Coverage*           BacktrackCoverage;
386
 
                                      /* array of backtrack Coverage
387
 
                                         tables                        */
388
 
  HB_Coverage*           InputCoverage;
389
 
                                      /* array of input coverage
390
 
                                         tables                        */
391
 
  HB_Coverage*           LookaheadCoverage;
392
 
                                      /* array of lookahead coverage
393
 
                                         tables                        */
394
 
  HB_SubstLookupRecord*  SubstLookupRecord;
395
 
                                      /* array of substitution lookups */
396
 
  HB_UShort               BacktrackGlyphCount;
397
 
                                      /* number of backtrack glyphs    */
398
 
  HB_UShort               InputGlyphCount;
399
 
                                      /* number of input glyphs        */
400
 
  HB_UShort               LookaheadGlyphCount;
401
 
                                      /* number of lookahead glyphs    */
402
 
  HB_UShort               SubstCount; /* number of SubstLookupRecords  */
403
 
};
404
 
 
405
 
typedef struct HB_ChainContextSubstFormat3_  HB_ChainContextSubstFormat3;
406
 
 
407
 
 
408
 
struct  HB_ChainContextSubst_
409
 
{
410
 
  union
411
 
  {
412
 
    HB_ChainContextSubstFormat1  ccsf1;
413
 
    HB_ChainContextSubstFormat2  ccsf2;
414
 
    HB_ChainContextSubstFormat3  ccsf3;
415
 
  } ccsf;
416
 
 
417
 
  HB_Byte  SubstFormat;               /* 1, 2, or 3 */
418
 
};
419
 
 
420
 
typedef struct HB_ChainContextSubst_  HB_ChainContextSubst;
421
 
 
422
 
 
423
 
#if 0
424
 
/* LookupType 7 */
425
 
struct HB_ExtensionSubst_
426
 
{
427
 
  HB_GSUB_SubTable *subtable;         /* referenced subtable */
428
 
  HB_UShort      SubstFormat;         /* always 1 */
429
 
  HB_UShort      LookuptType;         /* lookup-type of referenced subtable */
430
 
};
431
 
 
432
 
typedef struct HB_ExtensionSubst_  HB_ExtensionSubst;
433
 
#endif
434
 
 
435
 
 
436
 
/* LookupType 8 */
437
 
struct HB_ReverseChainContextSubst_
438
 
{
439
 
  HB_Coverage*  LookaheadCoverage;   /* array of lookahead Coverage
440
 
                                         tables                          */
441
 
  HB_UShort*     Substitute;          /* array of substitute Glyph ID    */
442
 
  HB_Coverage*  BacktrackCoverage;   /* array of backtrack Coverage
443
 
                                         tables                          */
444
 
  HB_Coverage   Coverage;               /* coverage table for input glyphs */
445
 
  HB_UShort      SubstFormat;         /* always 1 */
446
 
  HB_UShort      BacktrackGlyphCount; /* number of backtrack glyphs      */
447
 
  HB_UShort      LookaheadGlyphCount; /* number of lookahead glyphs      */
448
 
  HB_UShort      GlyphCount;          /* number of Glyph IDs             */
449
 
};
450
 
 
451
 
typedef struct HB_ReverseChainContextSubst_  HB_ReverseChainContextSubst;
452
 
 
453
 
 
454
 
union  HB_GSUB_SubTable_
455
 
{
456
 
  HB_SingleSubst              single;
457
 
  HB_MultipleSubst            multiple;
458
 
  HB_AlternateSubst           alternate;
459
 
  HB_LigatureSubst            ligature;
460
 
  HB_ContextSubst             context;
461
 
  HB_ChainContextSubst        chain;
462
 
  HB_ReverseChainContextSubst reverse;
463
 
};
464
 
 
465
 
 
466
 
 
467
 
 
468
 
HB_INTERNAL HB_Error
469
 
_HB_GSUB_Load_SubTable( HB_GSUB_SubTable* st,
470
 
                                  HB_Stream     stream,
471
 
                                  HB_UShort     lookup_type );
472
 
 
473
 
HB_INTERNAL void
474
 
_HB_GSUB_Free_SubTable( HB_GSUB_SubTable* st,
475
 
                              HB_UShort     lookup_type );
476
 
 
477
 
#ifdef HB_USE_PACKED_STRUCTS
478
 
#pragma pack(pop)
479
 
#endif
480
 
 
481
 
HB_END_HEADER
482
 
 
483
 
#endif /* HARFBUZZ_GSUB_PRIVATE_H */