Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : /*
21 : * Sun Font Tools
22 : *
23 : * Author: Alexander Gelfenbain
24 : *
25 : */
26 :
27 : #include <assert.h>
28 :
29 : #include <stdlib.h>
30 : #include <string.h>
31 : #include <fcntl.h>
32 : #ifdef UNX
33 : #include <sys/mman.h>
34 : #include <sys/stat.h>
35 : #endif
36 : #include "sft.hxx"
37 : #include "gsub.h"
38 : #if ! (defined(NO_TTCR) && defined(NO_TYPE42))
39 : #include "ttcr.hxx"
40 : #endif
41 : #ifndef NO_MAPPERS /* include MapChar() and MapString() */
42 : #include "xlat.hxx"
43 : #endif
44 : #ifndef NO_TYPE3 /* include CreateT3FromTTGlyphs() */
45 : #include <rtl/crc.h>
46 : #endif
47 :
48 : #include <osl/endian.h>
49 : #include <algorithm>
50 :
51 : namespace vcl
52 : {
53 :
54 : /*- module identification */
55 :
56 : static const char *modname = "SunTypeTools-TT";
57 : static const char *modver = "1.0";
58 : static const char *modextra = "gelf";
59 :
60 : /*- private functions, constants and data types */
61 :
62 : enum PathSegmentType {
63 : PS_NOOP = 0,
64 : PS_MOVETO = 1,
65 : PS_LINETO = 2,
66 : PS_CURVETO = 3,
67 : PS_CLOSEPATH = 4
68 : };
69 :
70 : struct PSPathElement
71 : {
72 : PathSegmentType type;
73 : int x1, y1;
74 : int x2, y2;
75 : int x3, y3;
76 :
77 0 : PSPathElement( PathSegmentType i_eType ) : type( i_eType ),
78 : x1( 0 ), y1( 0 ),
79 : x2( 0 ), y2( 0 ),
80 0 : x3( 0 ), y3( 0 )
81 : {
82 0 : }
83 : };
84 :
85 : /*- In horizontal writing mode right sidebearing is calculated using this formula
86 : *- rsb = aw - (lsb + xMax - xMin) -*/
87 : typedef struct {
88 : sal_Int16 xMin;
89 : sal_Int16 yMin;
90 : sal_Int16 xMax;
91 : sal_Int16 yMax;
92 : sal_uInt16 aw; /*- Advance Width (horizontal writing mode) */
93 : sal_Int16 lsb; /*- Left sidebearing (horizontal writing mode) */
94 : sal_uInt16 ah; /*- advance height (vertical writing mode) */
95 : sal_Int16 tsb; /*- top sidebearing (vertical writing mode) */
96 : } TTGlyphMetrics;
97 :
98 : #define HFORMAT_LINELEN 64
99 :
100 : typedef struct {
101 : FILE *o;
102 : char buffer[HFORMAT_LINELEN];
103 : size_t bufpos;
104 : int total;
105 : } HexFmt;
106 :
107 : typedef struct {
108 : sal_uInt32 nGlyphs; /* number of glyphs in the font + 1 */
109 : sal_uInt32 *offs; /* array of nGlyphs offsets */
110 : } GlyphOffsets;
111 :
112 : /* private tags */
113 : static const sal_uInt32 TTFontClassTag = 0x74746663; /* 'ttfc' */
114 :
115 : static const sal_uInt32 T_true = 0x74727565; /* 'true' */
116 : static const sal_uInt32 T_ttcf = 0x74746366; /* 'ttcf' */
117 : static const sal_uInt32 T_otto = 0x4f54544f; /* 'OTTO' */
118 :
119 : /* standard TrueType table tags */
120 : #define T_maxp 0x6D617870
121 : #define T_glyf 0x676C7966
122 : #define T_head 0x68656164
123 : #define T_loca 0x6C6F6361
124 : #define T_name 0x6E616D65
125 : #define T_hhea 0x68686561
126 : #define T_hmtx 0x686D7478
127 : #define T_cmap 0x636D6170
128 : #define T_vhea 0x76686561
129 : #define T_vmtx 0x766D7478
130 : #define T_OS2 0x4F532F32
131 : #define T_post 0x706F7374
132 : #define T_kern 0x6B65726E
133 : #define T_cvt 0x63767420
134 : #define T_prep 0x70726570
135 : #define T_fpgm 0x6670676D
136 : #define T_gsub 0x47535542
137 : #define T_CFF 0x43464620
138 :
139 : /*- inline functions */
140 : #ifdef __GNUC__
141 : #define _inline static __inline__
142 : #else
143 : #define _inline static
144 : #endif
145 :
146 0 : _inline void *smalloc(size_t size)
147 : {
148 0 : void *res = malloc(size);
149 : assert(res != 0);
150 0 : return res;
151 : }
152 :
153 0 : _inline void *scalloc(size_t n, size_t size)
154 : {
155 0 : void *res = calloc(n, size);
156 : assert(res != 0);
157 0 : return res;
158 : }
159 :
160 : /*- Data access macros for data stored in big-endian or little-endian format */
161 0 : _inline sal_Int16 GetInt16(const sal_uInt8 *ptr, size_t offset, int bigendian)
162 : {
163 : sal_Int16 t;
164 : assert(ptr != 0);
165 :
166 0 : if (bigendian) {
167 0 : t = (ptr+offset)[0] << 8 | (ptr+offset)[1];
168 : } else {
169 0 : t = (ptr+offset)[1] << 8 | (ptr+offset)[0];
170 : }
171 :
172 0 : return t;
173 : }
174 :
175 0 : _inline sal_uInt16 GetUInt16(const sal_uInt8 *ptr, size_t offset, int bigendian)
176 : {
177 : sal_uInt16 t;
178 : assert(ptr != 0);
179 :
180 0 : if (bigendian) {
181 0 : t = (ptr+offset)[0] << 8 | (ptr+offset)[1];
182 : } else {
183 0 : t = (ptr+offset)[1] << 8 | (ptr+offset)[0];
184 : }
185 :
186 0 : return t;
187 : }
188 :
189 0 : _inline sal_Int32 GetInt32(const sal_uInt8 *ptr, size_t offset, int bigendian)
190 : {
191 : sal_Int32 t;
192 : assert(ptr != 0);
193 :
194 0 : if (bigendian) {
195 0 : t = (ptr+offset)[0] << 24 | (ptr+offset)[1] << 16 |
196 0 : (ptr+offset)[2] << 8 | (ptr+offset)[3];
197 : } else {
198 0 : t = (ptr+offset)[3] << 24 | (ptr+offset)[2] << 16 |
199 0 : (ptr+offset)[1] << 8 | (ptr+offset)[0];
200 : }
201 :
202 0 : return t;
203 : }
204 :
205 0 : _inline sal_uInt32 GetUInt32(const sal_uInt8 *ptr, size_t offset, int bigendian)
206 : {
207 : sal_uInt32 t;
208 : assert(ptr != 0);
209 :
210 0 : if (bigendian) {
211 0 : t = (ptr+offset)[0] << 24 | (ptr+offset)[1] << 16 |
212 0 : (ptr+offset)[2] << 8 | (ptr+offset)[3];
213 : } else {
214 0 : t = (ptr+offset)[3] << 24 | (ptr+offset)[2] << 16 |
215 0 : (ptr+offset)[1] << 8 | (ptr+offset)[0];
216 : }
217 :
218 0 : return t;
219 : }
220 :
221 : #if defined(OSL_BIGENDIAN)
222 : #define Int16FromMOTA(a) (a)
223 : #define Int32FromMOTA(a) (a)
224 : #else
225 0 : static sal_uInt16 Int16FromMOTA(sal_uInt16 a) {
226 0 : return (sal_uInt16) (((sal_uInt8)((a) >> 8)) | ((sal_uInt8)(a) << 8));
227 : }
228 0 : static sal_uInt32 Int32FromMOTA(sal_uInt32 a) {
229 0 : return ((a>>24)&0xFF) | (((a>>8)&0xFF00) | ((a&0xFF00)<<8) | ((a&0xFF)<<24));
230 : }
231 : #endif
232 :
233 0 : _inline F16Dot16 fixedMul(F16Dot16 a, F16Dot16 b)
234 : {
235 : unsigned int a1, b1;
236 : unsigned int a2, b2;
237 : F16Dot16 res;
238 : int sign;
239 :
240 0 : sign = (a & 0x80000000) ^ (b & 0x80000000);
241 0 : if (a < 0) a = -a;
242 0 : if (b < 0) b = -b;
243 :
244 0 : a1 = a >> 16;
245 0 : b1 = a & 0xFFFF;
246 0 : a2 = b >> 16;
247 0 : b2 = b & 0xFFFF;
248 :
249 0 : res = a1 * a2;
250 :
251 : /* if (res > 0x7FFF) assert(!"fixedMul: F16Dot16 overflow"); */
252 :
253 0 : res <<= 16;
254 0 : res += a1 * b2 + b1 * a2 + ((b1 * b2) >> 16);
255 :
256 0 : return sign ? -res : res;
257 : }
258 :
259 0 : _inline F16Dot16 fixedDiv(F16Dot16 a, F16Dot16 b)
260 : {
261 : unsigned int f, r;
262 : F16Dot16 res;
263 : int sign;
264 :
265 0 : sign = (a & 0x80000000) ^ (b & 0x80000000);
266 0 : if (a < 0) a = -a;
267 0 : if (b < 0) b = -b;
268 :
269 0 : f = a / b;
270 0 : r = a % b;
271 :
272 : /* if (f > 0x7FFFF) assert(!"fixedDiv: F16Dot16 overflow"); */
273 :
274 0 : while (r > 0xFFFF) {
275 0 : r >>= 1;
276 0 : b >>= 1;
277 : }
278 :
279 0 : res = (f << 16) + (r << 16) / b;
280 :
281 0 : return sign ? -res : res;
282 : }
283 :
284 : /*- returns a * b / c -*/
285 : /* XXX provide a real implementation that preserves accuracy */
286 0 : _inline F16Dot16 fixedMulDiv(F16Dot16 a, F16Dot16 b, F16Dot16 c)
287 : {
288 : F16Dot16 res;
289 :
290 0 : res = fixedMul(a, b);
291 0 : return fixedDiv(res, c);
292 : }
293 :
294 : /*- Translate units from TT to PS (standard 1/1000) -*/
295 0 : _inline int XUnits(int unitsPerEm, int n)
296 : {
297 0 : return (n * 1000) / unitsPerEm;
298 : }
299 :
300 0 : _inline const sal_uInt8* getTable( TrueTypeFont *ttf, sal_uInt32 ord)
301 : {
302 0 : return (sal_uInt8*)ttf->tables[ord];
303 : }
304 :
305 0 : _inline sal_uInt32 getTableSize(TrueTypeFont *ttf, sal_uInt32 ord)
306 : {
307 0 : return ttf->tlens[ord];
308 : }
309 :
310 : #ifndef NO_TYPE42
311 : /* Hex Formatter functions */
312 : static const char HexChars[] = "0123456789ABCDEF";
313 :
314 0 : static HexFmt *HexFmtNew(FILE *outf)
315 : {
316 0 : HexFmt* res = (HexFmt*)smalloc(sizeof(HexFmt));
317 0 : res->bufpos = res->total = 0;
318 0 : res->o = outf;
319 0 : return res;
320 : }
321 :
322 0 : static bool HexFmtFlush(HexFmt *_this)
323 : {
324 0 : bool bRet = true;
325 0 : if (_this->bufpos) {
326 0 : size_t nWritten = fwrite(_this->buffer, 1, _this->bufpos, _this->o);
327 0 : bRet = nWritten == _this->bufpos;
328 0 : _this->bufpos = 0;
329 : }
330 0 : return bRet;
331 : }
332 :
333 0 : _inline void HexFmtOpenString(HexFmt *_this)
334 : {
335 0 : fputs("<\n", _this->o);
336 0 : }
337 :
338 0 : _inline void HexFmtCloseString(HexFmt *_this)
339 : {
340 0 : HexFmtFlush(_this);
341 0 : fputs("00\n>\n", _this->o);
342 0 : }
343 :
344 0 : _inline void HexFmtDispose(HexFmt *_this)
345 : {
346 0 : HexFmtFlush(_this);
347 0 : free(_this);
348 0 : }
349 :
350 0 : static void HexFmtBlockWrite(HexFmt *_this, const void *ptr, sal_uInt32 size)
351 : {
352 : sal_uInt8 Ch;
353 : sal_uInt32 i;
354 :
355 0 : if (_this->total + size > 65534) {
356 0 : HexFmtFlush(_this);
357 0 : HexFmtCloseString(_this);
358 0 : _this->total = 0;
359 0 : HexFmtOpenString(_this);
360 : }
361 0 : for (i=0; i<size; i++) {
362 0 : Ch = ((sal_uInt8 *) ptr)[i];
363 0 : _this->buffer[_this->bufpos++] = HexChars[Ch >> 4];
364 0 : _this->buffer[_this->bufpos++] = HexChars[Ch & 0xF];
365 0 : if (_this->bufpos == HFORMAT_LINELEN) {
366 0 : HexFmtFlush(_this);
367 0 : fputc('\n', _this->o);
368 : }
369 :
370 : }
371 0 : _this->total += size;
372 0 : }
373 : #endif
374 :
375 : /* Outline Extraction functions */
376 :
377 : /* fills the aw and lsb entries of the TTGlyphMetrics structure from hmtx table -*/
378 0 : static void GetMetrics(TrueTypeFont *ttf, sal_uInt32 glyphID, TTGlyphMetrics *metrics)
379 : {
380 0 : const sal_uInt8* table = getTable( ttf, O_hmtx );
381 :
382 0 : metrics->aw = metrics->lsb = metrics->ah = metrics->tsb = 0;
383 0 : if (!table || !ttf->numberOfHMetrics) return;
384 :
385 0 : if (glyphID < ttf->numberOfHMetrics) {
386 0 : metrics->aw = GetUInt16(table, 4 * glyphID, 1);
387 0 : metrics->lsb = GetInt16(table, 4 * glyphID + 2, 1);
388 : } else {
389 0 : metrics->aw = GetUInt16(table, 4 * (ttf->numberOfHMetrics - 1), 1);
390 0 : metrics->lsb = GetInt16(table + ttf->numberOfHMetrics * 4, (glyphID - ttf->numberOfHMetrics) * 2, 1);
391 : }
392 :
393 0 : table = getTable(ttf, O_vmtx);
394 0 : if( !table || !ttf->numOfLongVerMetrics )
395 0 : return;
396 :
397 0 : if (glyphID < ttf->numOfLongVerMetrics) {
398 0 : metrics->ah = GetUInt16(table, 4 * glyphID, 1);
399 0 : metrics->tsb = GetInt16(table, 4 * glyphID + 2, 1);
400 : } else {
401 0 : metrics->ah = GetUInt16(table, 4 * (ttf->numOfLongVerMetrics - 1), 1);
402 0 : metrics->tsb = GetInt16(table + ttf->numOfLongVerMetrics * 4, (glyphID - ttf->numOfLongVerMetrics) * 2, 1);
403 : }
404 : }
405 :
406 : static int GetTTGlyphOutline(TrueTypeFont *, sal_uInt32 , ControlPoint **, TTGlyphMetrics *, std::vector< sal_uInt32 >* );
407 :
408 : /* returns the number of control points, allocates the pointArray */
409 0 : static int GetSimpleTTOutline(TrueTypeFont *ttf, sal_uInt32 glyphID, ControlPoint **pointArray, TTGlyphMetrics *metrics)
410 : {
411 0 : const sal_uInt8* table = getTable( ttf, O_glyf );
412 : sal_uInt8 flag, n;
413 0 : sal_uInt16 t, lastPoint=0;
414 : int i, j, z;
415 :
416 0 : *pointArray = 0;
417 :
418 : /* printf("GetSimpleTTOutline(%d)\n", glyphID); */
419 :
420 0 : if( glyphID >= ttf->nglyphs ) /*- glyph is not present in the font */
421 0 : return 0;
422 0 : const sal_uInt8* ptr = table + ttf->goffsets[glyphID];
423 0 : const sal_Int16 numberOfContours = GetInt16(ptr, 0, 1);
424 0 : if( numberOfContours <= 0 ) /*- glyph is not simple */
425 0 : return 0;
426 :
427 0 : if (metrics) { /*- GetCompoundTTOutline() calls this function with NULL metrics -*/
428 0 : metrics->xMin = GetInt16(ptr, 2, 1);
429 0 : metrics->yMin = GetInt16(ptr, 4, 1);
430 0 : metrics->xMax = GetInt16(ptr, 6, 1);
431 0 : metrics->yMax = GetInt16(ptr, 8, 1);
432 0 : GetMetrics(ttf, glyphID, metrics);
433 : }
434 :
435 : /* determine the last point and be extra safe about it. But probably this code is not needed */
436 :
437 0 : for (i=0; i<numberOfContours; i++) {
438 0 : if ((t = GetUInt16(ptr, 10+i*2, 1)) > lastPoint) lastPoint = t;
439 : }
440 :
441 0 : sal_uInt16 instLen = GetUInt16(ptr, 10 + numberOfContours*2, 1);
442 0 : const sal_uInt8* p = ptr + 10 + 2 * numberOfContours + 2 + instLen;
443 0 : ControlPoint* pa = (ControlPoint*)calloc(lastPoint+1, sizeof(ControlPoint));
444 :
445 0 : i = 0;
446 0 : while (i <= lastPoint) {
447 0 : pa[i++].flags = (sal_uInt32) (flag = *p++);
448 0 : if (flag & 8) { /*- repeat flag */
449 0 : n = *p++;
450 0 : for (j=0; j<n; j++) {
451 0 : if (i > lastPoint) { /*- if the font is really broken */
452 0 : free(pa);
453 0 : return 0;
454 : }
455 0 : pa[i++].flags = flag;
456 : }
457 : }
458 : }
459 :
460 : /*- Process the X coordinate */
461 0 : z = 0;
462 0 : for (i = 0; i <= lastPoint; i++) {
463 0 : if (pa[i].flags & 0x02) {
464 0 : if (pa[i].flags & 0x10) {
465 0 : z += (int) (*p++);
466 : } else {
467 0 : z -= (int) (*p++);
468 : }
469 0 : } else if ( !(pa[i].flags & 0x10)) {
470 0 : z += GetInt16(p, 0, 1);
471 0 : p += 2;
472 : }
473 0 : pa[i].x = (sal_Int16)z;
474 : }
475 :
476 : /*- Process the Y coordinate */
477 0 : z = 0;
478 0 : for (i = 0; i <= lastPoint; i++) {
479 0 : if (pa[i].flags & 0x04) {
480 0 : if (pa[i].flags & 0x20) {
481 0 : z += *p++;
482 : } else {
483 0 : z -= *p++;
484 : }
485 0 : } else if ( !(pa[i].flags & 0x20)) {
486 0 : z += GetInt16(p, 0, 1);
487 0 : p += 2;
488 : }
489 0 : pa[i].y = (sal_Int16)z;
490 : }
491 :
492 0 : for (i=0; i<numberOfContours; i++) {
493 0 : pa[GetUInt16(ptr, 10 + i * 2, 1)].flags |= 0x00008000; /*- set the end contour flag */
494 : }
495 :
496 0 : *pointArray = pa;
497 0 : return lastPoint + 1;
498 : }
499 :
500 0 : static int GetCompoundTTOutline(TrueTypeFont *ttf, sal_uInt32 glyphID, ControlPoint **pointArray, TTGlyphMetrics *metrics, std::vector< sal_uInt32 >& glyphlist)
501 : {
502 : sal_uInt16 flags, index;
503 : sal_Int16 e, f, numberOfContours;
504 0 : const sal_uInt8* table = getTable( ttf, O_glyf );
505 0 : std::vector<ControlPoint> myPoints;
506 : ControlPoint *nextComponent, *pa;
507 : int i, np;
508 0 : F16Dot16 a = 0x10000, b = 0, c = 0, d = 0x10000, m, n, abs1, abs2, abs3;
509 :
510 0 : *pointArray = 0;
511 : /* printf("GetCompoundTTOutline(%d)\n", glyphID); */
512 :
513 0 : if (glyphID >= ttf->nglyphs) /*- incorrect glyphID */
514 0 : return 0;
515 :
516 0 : const sal_uInt8* ptr = table + ttf->goffsets[glyphID];
517 0 : if ((numberOfContours = GetInt16(ptr, 0, 1)) != -1) /*- glyph is not compound */
518 0 : return 0;
519 :
520 0 : if (metrics) {
521 0 : metrics->xMin = GetInt16(ptr, 2, 1);
522 0 : metrics->yMin = GetInt16(ptr, 4, 1);
523 0 : metrics->xMax = GetInt16(ptr, 6, 1);
524 0 : metrics->yMax = GetInt16(ptr, 8, 1);
525 0 : GetMetrics(ttf, glyphID, metrics);
526 : }
527 :
528 0 : ptr += 10;
529 :
530 0 : do {
531 0 : flags = GetUInt16(ptr, 0, 1);
532 : /* printf("flags: 0x%X\n", flags); */
533 0 : index = GetUInt16(ptr, 2, 1);
534 0 : ptr += 4;
535 :
536 0 : if( std::find( glyphlist.begin(), glyphlist.end(), index ) != glyphlist.end() )
537 : {
538 : #if OSL_DEBUG_LEVEL > 1
539 : fprintf(stderr, "Endless loop found in a compound glyph.\n");
540 : fprintf(stderr, "%d -> ", index);
541 : fprintf(stderr," [");
542 : for( std::vector< sal_uInt32 >::const_iterator it = glyphlist.begin();
543 : it != glyphlist.end(); ++it )
544 : {
545 : fprintf( stderr,"%d ", (int) *it );
546 : }
547 : fprintf(stderr,"]\n");
548 : /**/
549 : #endif
550 : }
551 :
552 0 : glyphlist.push_back( index );
553 :
554 0 : if ((np = GetTTGlyphOutline(ttf, index, &nextComponent, 0, &glyphlist)) == 0)
555 : {
556 : /* XXX that probably indicates a corrupted font */
557 : #if OSL_DEBUG_LEVEL > 1
558 : fprintf(stderr, "An empty compound!\n");
559 : /* assert(!"An empty compound"); */
560 : #endif
561 : }
562 :
563 0 : if( ! glyphlist.empty() )
564 0 : glyphlist.pop_back();
565 :
566 0 : if (flags & USE_MY_METRICS) {
567 0 : if (metrics) GetMetrics(ttf, index, metrics);
568 : }
569 :
570 0 : if (flags & ARG_1_AND_2_ARE_WORDS) {
571 0 : e = GetInt16(ptr, 0, 1);
572 0 : f = GetInt16(ptr, 2, 1);
573 : /* printf("ARG_1_AND_2_ARE_WORDS: %d %d\n", e & 0xFFFF, f & 0xFFFF); */
574 0 : ptr += 4;
575 : } else {
576 0 : if (flags & ARGS_ARE_XY_VALUES) { /* args are signed */
577 0 : e = (sal_Int8) *ptr++;
578 0 : f = (sal_Int8) *ptr++;
579 : /* printf("ARGS_ARE_XY_VALUES: %d %d\n", e & 0xFF, f & 0xFF); */
580 : } else { /* args are unsigned */
581 : /* printf("!ARGS_ARE_XY_VALUES\n"); */
582 0 : e = *ptr++;
583 0 : f = *ptr++;
584 : }
585 :
586 : }
587 :
588 0 : a = d = 0x10000;
589 0 : b = c = 0;
590 :
591 0 : if (flags & WE_HAVE_A_SCALE) {
592 0 : a = GetInt16(ptr, 0, 1) << 2;
593 0 : d = a;
594 0 : ptr += 2;
595 0 : } else if (flags & WE_HAVE_AN_X_AND_Y_SCALE) {
596 0 : a = GetInt16(ptr, 0, 1) << 2;
597 0 : d = GetInt16(ptr, 2, 1) << 2;
598 0 : ptr += 4;
599 0 : } else if (flags & WE_HAVE_A_TWO_BY_TWO) {
600 0 : a = GetInt16(ptr, 0, 1) << 2;
601 0 : b = GetInt16(ptr, 2, 1) << 2;
602 0 : c = GetInt16(ptr, 4, 1) << 2;
603 0 : d = GetInt16(ptr, 6, 1) << 2;
604 0 : ptr += 8;
605 : }
606 :
607 0 : abs1 = (a < 0) ? -a : a;
608 0 : abs2 = (b < 0) ? -b : b;
609 0 : m = (abs1 > abs2) ? abs1 : abs2;
610 0 : abs3 = abs1 - abs2;
611 0 : if (abs3 < 0) abs3 = -abs3;
612 0 : if (abs3 <= 33) m *= 2;
613 :
614 0 : abs1 = (c < 0) ? -c : c;
615 0 : abs2 = (d < 0) ? -d : d;
616 0 : n = (abs1 > abs2) ? abs1 : abs2;
617 0 : abs3 = abs1 - abs2;
618 0 : if (abs3 < 0) abs3 = -abs3;
619 0 : if (abs3 <= 33) n *= 2;
620 :
621 0 : for (i=0; i<np; i++) {
622 : F16Dot16 t;
623 : ControlPoint cp;
624 0 : cp.flags = nextComponent[i].flags;
625 0 : t = fixedMulDiv(a, nextComponent[i].x << 16, m) + fixedMulDiv(c, nextComponent[i].y << 16, m) + (e << 16);
626 0 : cp.x = (sal_Int16)(fixedMul(t, m) >> 16);
627 0 : t = fixedMulDiv(b, nextComponent[i].x << 16, n) + fixedMulDiv(d, nextComponent[i].y << 16, n) + (f << 16);
628 0 : cp.y = (sal_Int16)(fixedMul(t, n) >> 16);
629 :
630 0 : myPoints.push_back( cp );
631 : }
632 :
633 0 : free(nextComponent);
634 :
635 0 : } while (flags & MORE_COMPONENTS);
636 :
637 : // #i123417# some fonts like IFAOGrec have no outline points in some compound glyphs
638 : // so this unlikely but possible scenario should be handled gracefully
639 0 : if( myPoints.empty() )
640 0 : return 0;
641 :
642 0 : np = myPoints.size();
643 :
644 0 : pa = (ControlPoint*)calloc(np, sizeof(ControlPoint));
645 : assert(pa != 0);
646 :
647 0 : if (np > 0)
648 0 : memcpy( pa, &myPoints[0], np*sizeof(ControlPoint) );
649 :
650 0 : *pointArray = pa;
651 0 : return np;
652 : }
653 :
654 : /* NOTE: GetTTGlyphOutline() returns -1 if the glyphID is incorrect,
655 : * but Get{Simple|Compound}GlyphOutline returns 0 in such a case.
656 : *
657 : * NOTE: glyphlist is the stack of glyphs traversed while constructing
658 : * a composite glyph. This is a safequard against endless recursion
659 : * in corrupted fonts.
660 : */
661 0 : static int GetTTGlyphOutline(TrueTypeFont *ttf, sal_uInt32 glyphID, ControlPoint **pointArray, TTGlyphMetrics *metrics, std::vector< sal_uInt32 >* glyphlist)
662 : {
663 0 : const sal_uInt8 *table = getTable( ttf, O_glyf );
664 : sal_Int16 numberOfContours;
665 : int res;
666 0 : *pointArray = 0;
667 :
668 0 : if (metrics) {
669 0 : memset(metrics, 0, sizeof(TTGlyphMetrics)); /*- metrics is initialized to all zeroes */
670 : }
671 :
672 0 : if (glyphID >= ttf->nglyphs) return -1; /**/
673 :
674 0 : const sal_uInt8* ptr = table + ttf->goffsets[glyphID];
675 0 : int length = ttf->goffsets[glyphID+1] - ttf->goffsets[glyphID];
676 :
677 0 : if (length == 0) { /*- empty glyphs still have hmtx and vmtx metrics values */
678 0 : if (metrics) GetMetrics(ttf, glyphID, metrics);
679 0 : return 0;
680 : }
681 :
682 0 : numberOfContours = GetInt16(ptr, 0, 1);
683 :
684 0 : if (numberOfContours >= 0)
685 : {
686 0 : res=GetSimpleTTOutline(ttf, glyphID, pointArray, metrics);
687 : }
688 : else
689 : {
690 0 : std::vector< sal_uInt32 > aPrivList;
691 0 : aPrivList.push_back( glyphID );
692 0 : res = GetCompoundTTOutline(ttf, glyphID, pointArray, metrics, glyphlist ? *glyphlist : aPrivList );
693 : }
694 :
695 0 : return res;
696 : }
697 :
698 : #ifndef NO_TYPE3
699 :
700 : /*- returns the number of items in the path -*/
701 :
702 0 : static int BSplineToPSPath(ControlPoint *srcA, int srcCount, PSPathElement **path)
703 : {
704 0 : std::vector< PSPathElement > aPathList;
705 0 : int nPathCount = 0;
706 0 : PSPathElement p( PS_NOOP );
707 :
708 0 : int x0 = 0, y0 = 0, x1 = 0, y1 = 0, x2, y2, curx, cury;
709 0 : bool lastOff = false; /*- last point was off-contour */
710 0 : int scflag = 1; /*- start contour flag */
711 0 : bool ecflag = false; /*- end contour flag */
712 0 : int cp = 0; /*- current point */
713 0 : int StartContour = 0, EndContour = 1;
714 :
715 0 : *path = 0;
716 :
717 : /* if (srcCount > 0) for(;;) */
718 0 : while (srcCount > 0) { /*- srcCount does not get changed inside the loop. */
719 0 : if (scflag) {
720 0 : int l = cp;
721 0 : StartContour = cp;
722 0 : while (!(srcA[l].flags & 0x8000)) l++;
723 0 : EndContour = l;
724 0 : if (StartContour == EndContour) {
725 0 : if (cp + 1 < srcCount) {
726 0 : cp++;
727 0 : continue;
728 : } else {
729 0 : break;
730 : }
731 : }
732 0 : p = PSPathElement(PS_MOVETO);
733 0 : if (!(srcA[cp].flags & 1)) {
734 0 : if (!(srcA[EndContour].flags & 1)) {
735 0 : p.x1 = x0 = (srcA[cp].x + srcA[EndContour].x + 1) / 2;
736 0 : p.y1 = y0 = (srcA[cp].y + srcA[EndContour].y + 1) / 2;
737 : } else {
738 0 : p.x1 = x0 = srcA[EndContour].x;
739 0 : p.y1 = y0 = srcA[EndContour].y;
740 : }
741 : } else {
742 0 : p.x1 = x0 = srcA[cp].x;
743 0 : p.y1 = y0 = srcA[cp].y;
744 0 : cp++;
745 : }
746 0 : aPathList.push_back( p );
747 0 : lastOff = false;
748 0 : scflag = 0;
749 : }
750 :
751 0 : curx = srcA[cp].x;
752 0 : cury = srcA[cp].y;
753 :
754 0 : if (srcA[cp].flags & 1)
755 : {
756 0 : if (lastOff)
757 : {
758 0 : p = PSPathElement(PS_CURVETO);
759 0 : p.x1 = x0 + (2 * (x1 - x0) + 1) / 3;
760 0 : p.y1 = y0 + (2 * (y1 - y0) + 1) / 3;
761 0 : p.x2 = x1 + (curx - x1 + 1) / 3;
762 0 : p.y2 = y1 + (cury - y1 + 1) / 3;
763 0 : p.x3 = curx;
764 0 : p.y3 = cury;
765 0 : aPathList.push_back( p );
766 : }
767 : else
768 : {
769 0 : if (!(x0 == curx && y0 == cury))
770 : { /* eliminate empty lines */
771 0 : p = PSPathElement(PS_LINETO);
772 0 : p.x1 = curx;
773 0 : p.y1 = cury;
774 0 : aPathList.push_back( p );
775 : }
776 : }
777 0 : x0 = curx; y0 = cury; lastOff = false;
778 : }
779 : else
780 : {
781 0 : if (lastOff)
782 : {
783 0 : x2 = (x1 + curx + 1) / 2;
784 0 : y2 = (y1 + cury + 1) / 2;
785 0 : p = PSPathElement(PS_CURVETO);
786 0 : p.x1 = x0 + (2 * (x1 - x0) + 1) / 3;
787 0 : p.y1 = y0 + (2 * (y1 - y0) + 1) / 3;
788 0 : p.x2 = x1 + (x2 - x1 + 1) / 3;
789 0 : p.y2 = y1 + (y2 - y1 + 1) / 3;
790 0 : p.x3 = x2;
791 0 : p.y3 = y2;
792 0 : aPathList.push_back( p );
793 0 : x0 = x2; y0 = y2;
794 0 : x1 = curx; y1 = cury;
795 : } else {
796 0 : x1 = curx; y1 = cury;
797 : }
798 0 : lastOff = true;
799 : }
800 :
801 0 : if (ecflag) {
802 0 : aPathList.push_back( PSPathElement(PS_CLOSEPATH) );
803 0 : scflag = 1;
804 0 : ecflag = false;
805 0 : cp = EndContour + 1;
806 0 : if (cp >= srcCount) break;
807 0 : continue;
808 : }
809 :
810 0 : if (cp == EndContour) {
811 0 : cp = StartContour;
812 0 : ecflag = true;
813 : } else {
814 0 : cp++;
815 : }
816 : }
817 :
818 0 : if( (nPathCount = (int)aPathList.size()) > 0)
819 : {
820 0 : *path = (PSPathElement*)calloc(nPathCount, sizeof(PSPathElement));
821 : assert(*path != 0);
822 0 : memcpy( *path, &aPathList[0], nPathCount * sizeof(PSPathElement) );
823 : }
824 :
825 0 : return nPathCount;
826 : }
827 :
828 : #endif
829 :
830 : /*- Extracts a string from the name table and allocates memory for it -*/
831 :
832 0 : static char *nameExtract( const sal_uInt8* name, int nTableSize, int n, int dbFlag, sal_uInt16** ucs2result )
833 : {
834 : char *res;
835 0 : const sal_uInt8* ptr = name + GetUInt16(name, 4, 1) + GetUInt16(name + 6, 12 * n + 10, 1);
836 0 : int len = GetUInt16(name+6, 12 * n + 8, 1);
837 :
838 : // sanity check
839 0 : if( (len <= 0) || ((ptr+len) > (name+nTableSize)) )
840 : {
841 0 : if( ucs2result )
842 0 : *ucs2result = NULL;
843 0 : return NULL;
844 : }
845 :
846 0 : if( ucs2result )
847 0 : *ucs2result = NULL;
848 0 : if (dbFlag) {
849 0 : res = (char*)malloc(1 + len/2);
850 : assert(res != 0);
851 0 : for (int i = 0; i < len/2; i++)
852 0 : res[i] = *(ptr + i * 2 + 1);
853 0 : res[len/2] = 0;
854 0 : if( ucs2result )
855 : {
856 0 : *ucs2result = (sal_uInt16*)malloc( len+2 );
857 0 : for (int i = 0; i < len/2; i++ )
858 0 : (*ucs2result)[i] = GetUInt16( ptr, 2*i, 1 );
859 0 : (*ucs2result)[len/2] = 0;
860 : }
861 : } else {
862 0 : res = (char*)malloc(1 + len);
863 : assert(res != 0);
864 0 : memcpy(res, ptr, len);
865 0 : res[len] = 0;
866 : }
867 :
868 0 : return res;
869 : }
870 :
871 0 : static int findname( const sal_uInt8 *name, sal_uInt16 n, sal_uInt16 platformID,
872 : sal_uInt16 encodingID, sal_uInt16 languageID, sal_uInt16 nameID )
873 : {
874 0 : int l = 0, r = n-1, i;
875 : sal_uInt32 t1, t2;
876 : sal_uInt32 m1, m2;
877 :
878 0 : if (n == 0) return -1;
879 :
880 0 : m1 = (platformID << 16) | encodingID;
881 0 : m2 = (languageID << 16) | nameID;
882 :
883 0 : do {
884 0 : i = (l + r) >> 1;
885 0 : t1 = GetUInt32(name + 6, i * 12 + 0, 1);
886 0 : t2 = GetUInt32(name + 6, i * 12 + 4, 1);
887 :
888 0 : if (! ((m1 < t1) || ((m1 == t1) && (m2 < t2)))) l = i + 1;
889 0 : if (! ((m1 > t1) || ((m1 == t1) && (m2 > t2)))) r = i - 1;
890 : } while (l <= r);
891 :
892 0 : if (l - r == 2) {
893 0 : return l - 1;
894 : }
895 :
896 0 : return -1;
897 : }
898 :
899 : /* XXX marlett.ttf uses (3, 0, 1033) instead of (3, 1, 1033) and does not have any Apple tables.
900 : * Fix: if (3, 1, 1033) is not found - need to check for (3, 0, 1033)
901 : *
902 : * /d/fonts/ttzh_tw/Big5/Hanyi/ma6b5p uses (1, 0, 19) for English strings, instead of (1, 0, 0)
903 : * and does not have (3, 1, 1033)
904 : * Fix: if (1, 0, 0) and (3, 1, 1033) are not found need to look for (1, 0, *) - that will
905 : * require a change in algorithm
906 : *
907 : * /d/fonts/fdltest/Korean/h2drrm has unsorted names and a an unknown (to me) Mac LanguageID,
908 : * but (1, 0, 1042) strings usable
909 : * Fix: change algorithm, and use (1, 0, *) if both standard Mac and MS strings are not found
910 : */
911 :
912 0 : static void GetNames(TrueTypeFont *t)
913 : {
914 0 : const sal_uInt8* table = getTable( t, O_name );
915 0 : int nTableSize = getTableSize(t, O_name);
916 :
917 0 : if (nTableSize < 4)
918 : {
919 : #if OSL_DEBUG_LEVEL > 1
920 : fprintf(stderr, "O_name table too small\n");
921 : #endif
922 0 : return;
923 : }
924 :
925 0 : sal_uInt16 n = GetUInt16(table, 2, 1);
926 : int i, r;
927 0 : bool bPSNameOK = true;
928 :
929 : /* #129743# simple sanity check for name table entry count */
930 0 : if( nTableSize <= n * 12 + 6 )
931 0 : n = 0;
932 :
933 : /* PostScript name: preferred Microsoft */
934 0 : t->psname = NULL;
935 0 : if ((r = findname(table, n, 3, 1, 0x0409, 6)) != -1)
936 0 : t->psname = nameExtract(table, nTableSize, r, 1, NULL);
937 0 : if ( ! t->psname && (r = findname(table, n, 1, 0, 0, 6)) != -1)
938 0 : t->psname = nameExtract(table, nTableSize, r, 0, NULL);
939 0 : if ( ! t->psname && (r = findname(table, n, 3, 0, 0x0409, 6)) != -1)
940 : {
941 : // some symbol fonts like Marlett have a 3,0 name!
942 0 : t->psname = nameExtract(table, nTableSize, r, 1, NULL);
943 : }
944 : // for embedded font in Ghostscript PDFs
945 0 : if ( ! t->psname && (r = findname(table, n, 2, 2, 0, 6)) != -1)
946 : {
947 0 : t->psname = nameExtract(table, nTableSize, r, 0, NULL);
948 : }
949 0 : if ( ! t->psname )
950 : {
951 0 : if ( t->fname )
952 : {
953 0 : char* pReverse = t->fname + strlen(t->fname);
954 : /* take only last token of filename */
955 0 : while(pReverse != t->fname && *pReverse != '/') pReverse--;
956 0 : if(*pReverse == '/') pReverse++;
957 0 : t->psname = strdup(pReverse);
958 : assert(t->psname != 0);
959 0 : for (i=strlen(t->psname) - 1; i > 0; i--)
960 : {
961 : /*- Remove the suffix -*/
962 0 : if (t->psname[i] == '.' ) {
963 0 : t->psname[i] = 0;
964 0 : break;
965 : }
966 : }
967 : }
968 : else
969 0 : t->psname = strdup( "Unknown" );
970 : }
971 :
972 : /* Font family and subfamily names: preferred Apple */
973 0 : t->family = NULL;
974 0 : if ((r = findname(table, n, 0, 0, 0, 1)) != -1)
975 0 : t->family = nameExtract(table, nTableSize, r, 1, &t->ufamily);
976 0 : if ( ! t->family && (r = findname(table, n, 3, 1, 0x0409, 1)) != -1)
977 0 : t->family = nameExtract(table, nTableSize, r, 1, &t->ufamily);
978 0 : if ( ! t->family && (r = findname(table, n, 1, 0, 0, 1)) != -1)
979 0 : t->family = nameExtract(table, nTableSize, r, 0, NULL);
980 0 : if ( ! t->family && (r = findname(table, n, 3, 1, 0x0411, 1)) != -1)
981 0 : t->family = nameExtract(table, nTableSize, r, 1, &t->ufamily);
982 0 : if ( ! t->family && (r = findname(table, n, 3, 0, 0x0409, 1)) != -1)
983 0 : t->family = nameExtract(table, nTableSize, r, 1, &t->ufamily);
984 0 : if ( ! t->family )
985 : {
986 0 : t->family = strdup(t->psname);
987 : assert(t->family != 0);
988 : }
989 :
990 0 : t->subfamily = NULL;
991 0 : t->usubfamily = NULL;
992 0 : if ((r = findname(table, n, 1, 0, 0, 2)) != -1)
993 0 : t->subfamily = nameExtract(table, nTableSize, r, 0, &t->usubfamily);
994 0 : if ( ! t->subfamily && (r = findname(table, n, 3, 1, 0x0409, 2)) != -1)
995 0 : t->subfamily = nameExtract(table, nTableSize, r, 1, &t->usubfamily);
996 0 : if ( ! t->subfamily )
997 : {
998 0 : t->subfamily = strdup("");
999 : }
1000 :
1001 : /* #i60349# sanity check psname
1002 : * psname parctically has to be 7bit ascii and should not contains spaces
1003 : * there is a class of broken fonts which do not fullfill that at all, so let's try
1004 : * if the family name is 7bit ascii and take it instead if so
1005 : */
1006 : /* check psname */
1007 0 : for( i = 0; t->psname[i] != 0 && bPSNameOK; i++ )
1008 0 : if( t->psname[ i ] < 33 || (t->psname[ i ] & 0x80) )
1009 0 : bPSNameOK = false;
1010 0 : if( !bPSNameOK )
1011 : {
1012 0 : bool bReplace = true;
1013 : /* check if family is a suitable replacement */
1014 0 : if( t->ufamily && t->family )
1015 : {
1016 0 : for( i = 0; t->ufamily[ i ] != 0 && bReplace; i++ )
1017 0 : if( t->ufamily[ i ] < 33 || t->ufamily[ i ] > 127 )
1018 0 : bReplace = false;
1019 0 : if( bReplace )
1020 : {
1021 0 : free( t->psname );
1022 0 : t->psname = strdup( t->family );
1023 : }
1024 : }
1025 : }
1026 : }
1027 :
1028 : enum cmapType {
1029 : CMAP_NOT_USABLE = -1,
1030 : CMAP_MS_Symbol = 10,
1031 : CMAP_MS_Unicode = 11,
1032 : CMAP_MS_ShiftJIS = 12,
1033 : CMAP_MS_Big5 = 13,
1034 : CMAP_MS_PRC = 14,
1035 : CMAP_MS_Wansung = 15,
1036 : CMAP_MS_Johab = 16
1037 : };
1038 :
1039 : #define MISSING_GLYPH_INDEX 0
1040 :
1041 : /*
1042 : * getGlyph[0246]() functions and friends are implemented by:
1043 : * @author Manpreet Singh
1044 : * getGlyph12() function and friends by:
1045 : * @author HDU
1046 : */
1047 0 : static sal_uInt32 getGlyph0(const sal_uInt8* cmap, sal_uInt32 c) {
1048 0 : if (c <= 255) {
1049 0 : return *(cmap + 6 + c);
1050 : } else {
1051 0 : return MISSING_GLYPH_INDEX;
1052 : }
1053 : }
1054 :
1055 : typedef struct _subHeader2 {
1056 : sal_uInt16 firstCode;
1057 : sal_uInt16 entryCount;
1058 : sal_uInt16 idDelta;
1059 : sal_uInt16 idRangeOffset;
1060 : } subHeader2;
1061 :
1062 0 : static sal_uInt32 getGlyph2(const sal_uInt8 *cmap, sal_uInt32 c) {
1063 0 : sal_uInt16 *CMAP2 = (sal_uInt16 *) cmap;
1064 : sal_uInt8 theHighByte;
1065 :
1066 : sal_uInt8 theLowByte;
1067 : subHeader2* subHeader2s;
1068 : sal_uInt16* subHeader2Keys;
1069 : sal_uInt16 firstCode;
1070 : int k;
1071 : sal_uInt32 ToReturn;
1072 :
1073 0 : theHighByte = (sal_uInt8)((c >> 8) & 0x00ff);
1074 0 : theLowByte = (sal_uInt8)(c & 0x00ff);
1075 0 : subHeader2Keys = CMAP2 + 3;
1076 0 : subHeader2s = (subHeader2 *)(subHeader2Keys + 256);
1077 0 : k = Int16FromMOTA(subHeader2Keys[theHighByte]) / 8;
1078 :
1079 0 : if(k == 0) {
1080 0 : firstCode = Int16FromMOTA(subHeader2s[k].firstCode);
1081 0 : if(theLowByte >= firstCode && theLowByte < (firstCode + Int16FromMOTA(subHeader2s[k].entryCount))) {
1082 : return *((&(subHeader2s[0].idRangeOffset))
1083 0 : + (Int16FromMOTA(subHeader2s[0].idRangeOffset)/2) /* + offset */
1084 0 : + theLowByte /* + to_look */
1085 0 : - Int16FromMOTA(subHeader2s[0].firstCode)
1086 0 : );
1087 : } else {
1088 0 : return MISSING_GLYPH_INDEX;
1089 : }
1090 0 : } else if (k > 0) {
1091 0 : firstCode = Int16FromMOTA(subHeader2s[k].firstCode);
1092 0 : if(theLowByte >= firstCode && theLowByte < (firstCode + Int16FromMOTA(subHeader2s[k].entryCount))) {
1093 0 : ToReturn = *((&(subHeader2s[k].idRangeOffset))
1094 0 : + (Int16FromMOTA(subHeader2s[k].idRangeOffset)/2)
1095 0 : + theLowByte - firstCode);
1096 0 : if(ToReturn == 0) {
1097 0 : return MISSING_GLYPH_INDEX;
1098 : } else {
1099 0 : ToReturn += Int16FromMOTA(subHeader2s[k].idDelta);
1100 0 : return (ToReturn & 0xFFFF);
1101 : }
1102 : } else {
1103 0 : return MISSING_GLYPH_INDEX;
1104 : }
1105 : } else {
1106 0 : return MISSING_GLYPH_INDEX;
1107 : }
1108 : }
1109 :
1110 0 : static sal_uInt32 getGlyph6(const sal_uInt8 *cmap, sal_uInt32 c) {
1111 : sal_uInt16 firstCode, lastCode, count;
1112 0 : sal_uInt16 *CMAP6 = (sal_uInt16 *) cmap;
1113 :
1114 0 : firstCode = Int16FromMOTA(*(CMAP6 + 3));
1115 0 : count = Int16FromMOTA(*(CMAP6 + 4));
1116 0 : lastCode = firstCode + count - 1;
1117 0 : if (c < firstCode || c > lastCode) {
1118 0 : return MISSING_GLYPH_INDEX;
1119 : } else {
1120 0 : return *((CMAP6 + 5)/*glyphIdArray*/ + (c - firstCode));
1121 : }
1122 : }
1123 :
1124 0 : static sal_uInt16 GEbinsearch(sal_uInt16 *ar, sal_uInt16 length, sal_uInt16 toSearch) {
1125 0 : signed int low, mid, high, lastfound = 0xffff;
1126 : sal_uInt16 res;
1127 0 : if(length == (sal_uInt16)0 || length == (sal_uInt16)0xFFFF) {
1128 0 : return (sal_uInt16)0xFFFF;
1129 : }
1130 0 : low = 0;
1131 0 : high = length - 1;
1132 0 : while(high >= low) {
1133 0 : mid = (high + low)/2;
1134 0 : res = Int16FromMOTA(*(ar+mid));
1135 0 : if(res >= toSearch) {
1136 0 : lastfound = mid;
1137 0 : high = --mid;
1138 : } else {
1139 0 : low = ++mid;
1140 : }
1141 : }
1142 0 : return (sal_uInt16)lastfound;
1143 : }
1144 :
1145 0 : static sal_uInt32 getGlyph4(const sal_uInt8 *cmap, sal_uInt32 c) {
1146 : sal_uInt16 i;
1147 : int ToReturn;
1148 : sal_uInt16 segCount;
1149 : sal_uInt16 * startCode;
1150 : sal_uInt16 * endCode;
1151 : sal_uInt16 * idDelta;
1152 : /* sal_uInt16 * glyphIdArray; */
1153 : sal_uInt16 * idRangeOffset;
1154 : /*sal_uInt16 * glyphIndexArray;*/
1155 0 : sal_uInt16 *CMAP4 = (sal_uInt16 *) cmap;
1156 : /* sal_uInt16 GEbinsearch(sal_uInt16 *ar, sal_uInt16 length, sal_uInt16 toSearch); */
1157 :
1158 0 : segCount = Int16FromMOTA(*(CMAP4 + 3))/2;
1159 0 : endCode = CMAP4 + 7;
1160 0 : i = GEbinsearch(endCode, segCount, (sal_uInt16)c);
1161 :
1162 0 : if (i == (sal_uInt16) 0xFFFF) {
1163 0 : return MISSING_GLYPH_INDEX;
1164 : }
1165 0 : startCode = endCode + segCount + 1;
1166 :
1167 0 : if(Int16FromMOTA(startCode[i]) > c) {
1168 0 : return MISSING_GLYPH_INDEX;
1169 : }
1170 0 : idDelta = startCode + segCount;
1171 0 : idRangeOffset = idDelta + segCount;
1172 : /*glyphIndexArray = idRangeOffset + segCount;*/
1173 :
1174 0 : if(Int16FromMOTA(idRangeOffset[i]) != 0) {
1175 0 : c = Int16FromMOTA(*(&(idRangeOffset[i]) + (Int16FromMOTA(idRangeOffset[i])/2 + (c - Int16FromMOTA(startCode[i])))));
1176 : }
1177 :
1178 0 : ToReturn = (Int16FromMOTA(idDelta[i]) + c) & 0xFFFF;
1179 0 : return ToReturn;
1180 : }
1181 :
1182 0 : static sal_uInt32 getGlyph12(const sal_uInt8 *pCmap, sal_uInt32 cChar) {
1183 0 : const sal_uInt32* pCMAP12 = (const sal_uInt32*)pCmap;
1184 0 : int nLength = Int32FromMOTA( pCMAP12[1] );
1185 0 : int nGroups = Int32FromMOTA( pCMAP12[3] );
1186 0 : int nLower = 0;
1187 0 : int nUpper = nGroups;
1188 :
1189 0 : if( nUpper > (nLength-16)/12 )
1190 0 : nUpper = (nLength-16)/12;
1191 :
1192 : /* binary search in "segmented coverage" subtable */
1193 0 : while( nLower < nUpper ) {
1194 0 : int nIndex = (nLower + nUpper) / 2;
1195 0 : const sal_uInt32* pEntry = &pCMAP12[ 4 + 3*nIndex ];
1196 0 : sal_uInt32 cStart = Int32FromMOTA( pEntry[0] );
1197 0 : sal_uInt32 cLast = Int32FromMOTA( pEntry[1] );
1198 0 : if( cChar < cStart )
1199 0 : nUpper = nIndex;
1200 0 : else if( cChar > cLast )
1201 0 : nLower = nIndex + 1;
1202 : else { /* found matching entry! */
1203 0 : sal_uInt32 nGlyph = Int32FromMOTA( pEntry[2] );
1204 0 : nGlyph += cChar - cStart;
1205 0 : return nGlyph;
1206 : }
1207 : }
1208 :
1209 0 : return MISSING_GLYPH_INDEX;
1210 : }
1211 :
1212 0 : static void FindCmap(TrueTypeFont *ttf)
1213 : {
1214 0 : const sal_uInt8* table = getTable(ttf, O_cmap);
1215 0 : sal_uInt32 table_size = getTableSize(ttf, O_cmap);
1216 0 : sal_uInt16 ncmaps = GetUInt16(table, 2, 1);
1217 : unsigned int i;
1218 0 : sal_uInt32 AppleUni = 0; // Apple Unicode
1219 0 : sal_uInt32 ThreeZero = 0; /* MS Symbol */
1220 0 : sal_uInt32 ThreeOne = 0; /* MS UCS-2 */
1221 0 : sal_uInt32 ThreeTwo = 0; /* MS ShiftJIS */
1222 0 : sal_uInt32 ThreeThree = 0; /* MS Big5 */
1223 0 : sal_uInt32 ThreeFour = 0; /* MS PRC */
1224 0 : sal_uInt32 ThreeFive = 0; /* MS Wansung */
1225 0 : sal_uInt32 ThreeSix = 0; /* MS Johab */
1226 :
1227 0 : for (i = 0; i < ncmaps; i++) {
1228 : sal_uInt32 offset;
1229 : sal_uInt16 pID, eID;
1230 :
1231 : /* sanity check, cmap entry must lie within table */
1232 0 : if( i*8+4 > table_size )
1233 0 : break;
1234 :
1235 0 : pID = GetUInt16(table, 4 + i * 8, 1);
1236 0 : eID = GetUInt16(table, 6 + i * 8, 1);
1237 0 : offset = GetUInt32(table, 8 + i * 8, 1);
1238 :
1239 : /* sanity check, cmap must lie within file */
1240 0 : if( (table - ttf->ptr) + offset > (sal_uInt32)ttf->fsize )
1241 0 : continue;
1242 :
1243 : /* Unicode tables in Apple fonts */
1244 0 : if (pID == 0) {
1245 0 : AppleUni = offset;
1246 : }
1247 :
1248 0 : if (pID == 3) {
1249 0 : switch (eID) {
1250 0 : case 0: ThreeZero = offset; break;
1251 : case 10: // UCS-4
1252 0 : case 1: ThreeOne = offset; break;
1253 0 : case 2: ThreeTwo = offset; break;
1254 0 : case 3: ThreeThree = offset; break;
1255 0 : case 4: ThreeFour = offset; break;
1256 0 : case 5: ThreeFive = offset; break;
1257 0 : case 6: ThreeSix = offset; break;
1258 : }
1259 : }
1260 : }
1261 :
1262 : // fall back to AppleUnicode if there are no ThreeOne/Threezero tables
1263 0 : if( AppleUni && !ThreeZero && !ThreeOne)
1264 0 : ThreeOne = AppleUni;
1265 :
1266 0 : if (ThreeOne) {
1267 0 : ttf->cmapType = CMAP_MS_Unicode;
1268 0 : ttf->cmap = table + ThreeOne;
1269 0 : } else if (ThreeTwo) {
1270 0 : ttf->cmapType = CMAP_MS_ShiftJIS;
1271 0 : ttf->cmap = table + ThreeTwo;
1272 0 : } else if (ThreeThree) {
1273 0 : ttf->cmapType = CMAP_MS_Big5;
1274 0 : ttf->cmap = table + ThreeThree;
1275 0 : } else if (ThreeFour) {
1276 0 : ttf->cmapType = CMAP_MS_PRC;
1277 0 : ttf->cmap = table + ThreeFour;
1278 0 : } else if (ThreeFive) {
1279 0 : ttf->cmapType = CMAP_MS_Wansung;
1280 0 : ttf->cmap = table + ThreeFive;
1281 0 : } else if (ThreeSix) {
1282 0 : ttf->cmapType = CMAP_MS_Johab;
1283 0 : ttf->cmap = table + ThreeSix;
1284 0 : } else if (ThreeZero) {
1285 0 : ttf->cmapType = CMAP_MS_Symbol;
1286 0 : ttf->cmap = table + ThreeZero;
1287 : } else {
1288 0 : ttf->cmapType = CMAP_NOT_USABLE;
1289 0 : ttf->cmap = 0;
1290 : }
1291 :
1292 0 : if (ttf->cmapType != CMAP_NOT_USABLE) {
1293 0 : switch (GetUInt16(ttf->cmap, 0, 1)) {
1294 0 : case 0: ttf->mapper = getGlyph0; break;
1295 0 : case 2: ttf->mapper = getGlyph2; break;
1296 0 : case 4: ttf->mapper = getGlyph4; break;
1297 0 : case 6: ttf->mapper = getGlyph6; break;
1298 0 : case 12: ttf->mapper= getGlyph12; break;
1299 : default:
1300 : #if OSL_DEBUG_LEVEL > 1
1301 : /*- if the cmap table is really broken */
1302 : printf("%s: %d is not a recognized cmap format.\n", ttf->fname, GetUInt16(ttf->cmap, 0, 1));
1303 : #endif
1304 0 : ttf->cmapType = CMAP_NOT_USABLE;
1305 0 : ttf->cmap = 0;
1306 0 : ttf->mapper = 0;
1307 : }
1308 : }
1309 0 : }
1310 :
1311 0 : static void GetKern(TrueTypeFont *ttf)
1312 : {
1313 0 : const sal_uInt8* table = getTable(ttf, O_kern);
1314 : const sal_uInt8 *ptr;
1315 :
1316 0 : if( !table )
1317 0 : goto badtable;
1318 :
1319 0 : if (GetUInt16(table, 0, 1) == 0) { /* Traditional Microsoft style table with sal_uInt16 version and nTables fields */
1320 0 : ttf->nkern = GetUInt16(table, 2, 1);
1321 0 : ttf->kerntables = (const sal_uInt8**)calloc(ttf->nkern, sizeof(sal_uInt8 *));
1322 : assert(ttf->kerntables != 0);
1323 0 : ttf->kerntype = KT_MICROSOFT;
1324 0 : ptr = table + 4;
1325 0 : for( unsigned i = 0; i < ttf->nkern; ++i) {
1326 0 : ttf->kerntables[i] = ptr;
1327 0 : ptr += GetUInt16(ptr, 2, 1);
1328 : /* sanity check */
1329 0 : if( ptr > ttf->ptr+ttf->fsize )
1330 : {
1331 0 : free( ttf->kerntables );
1332 0 : goto badtable;
1333 : }
1334 : }
1335 0 : return;
1336 : }
1337 :
1338 0 : if (GetUInt32(table, 0, 1) == 0x00010000) { /* MacOS style kern tables: fixed32 version and sal_uInt32 nTables fields */
1339 0 : ttf->nkern = GetUInt32(table, 4, 1);
1340 0 : ttf->kerntables = (const sal_uInt8**)calloc(ttf->nkern, sizeof(sal_uInt8 *));
1341 : assert(ttf->kerntables != 0);
1342 0 : ttf->kerntype = KT_APPLE_NEW;
1343 0 : ptr = table + 8;
1344 0 : for( unsigned i = 0; i < ttf->nkern; ++i) {
1345 0 : ttf->kerntables[i] = ptr;
1346 0 : ptr += GetUInt32(ptr, 0, 1);
1347 : /* sanity check; there are some fonts that are broken in this regard */
1348 0 : if( ptr > ttf->ptr+ttf->fsize )
1349 : {
1350 0 : free( ttf->kerntables );
1351 0 : goto badtable;
1352 : }
1353 : }
1354 0 : return;
1355 : }
1356 :
1357 : badtable:
1358 0 : ttf->kerntype = KT_NONE;
1359 0 : ttf->kerntables = 0;
1360 :
1361 0 : return;
1362 : }
1363 :
1364 : /*- Public functions */
1365 :
1366 0 : int CountTTCFonts(const char* fname)
1367 : {
1368 0 : int nFonts = 0;
1369 : sal_uInt8 buffer[12];
1370 0 : FILE* fd = fopen(fname, "rb");
1371 0 : if( fd ) {
1372 0 : if (fread(buffer, 1, 12, fd) == 12) {
1373 0 : if(GetUInt32(buffer, 0, 1) == T_ttcf )
1374 0 : nFonts = GetUInt32(buffer, 8, 1);
1375 : }
1376 0 : fclose(fd);
1377 : }
1378 0 : return nFonts;
1379 : }
1380 :
1381 0 : static void allocTrueTypeFont( TrueTypeFont** ttf )
1382 : {
1383 0 : *ttf = (TrueTypeFont*)calloc(1,sizeof(TrueTypeFont));
1384 0 : if( *ttf != NULL )
1385 : {
1386 0 : (*ttf)->tag = 0;
1387 0 : (*ttf)->fname = 0;
1388 0 : (*ttf)->fsize = -1;
1389 0 : (*ttf)->ptr = 0;
1390 0 : (*ttf)->nglyphs = 0xFFFFFFFF;
1391 0 : (*ttf)->pGSubstitution = 0;
1392 : }
1393 0 : }
1394 :
1395 : /* forward declariotn for the two entry points to use*/
1396 : static int doOpenTTFont( sal_uInt32 facenum, TrueTypeFont* t );
1397 :
1398 : #if !defined(WIN32)
1399 0 : int OpenTTFontFile( const char* fname, sal_uInt32 facenum, TrueTypeFont** ttf )
1400 : {
1401 0 : int ret, fd = -1;
1402 : struct stat st;
1403 :
1404 0 : if (!fname || !*fname) return SF_BADFILE;
1405 :
1406 0 : allocTrueTypeFont( ttf );
1407 0 : if( ! *ttf )
1408 0 : return SF_MEMORY;
1409 :
1410 0 : (*ttf)->fname = strdup(fname);
1411 0 : if( ! (*ttf)->fname )
1412 : {
1413 0 : ret = SF_MEMORY;
1414 0 : goto cleanup;
1415 : }
1416 :
1417 0 : fd = open(fname, O_RDONLY);
1418 :
1419 0 : if (fd == -1) {
1420 0 : ret = SF_BADFILE;
1421 0 : goto cleanup;
1422 : }
1423 :
1424 0 : if (fstat(fd, &st) == -1) {
1425 0 : ret = SF_FILEIO;
1426 0 : goto cleanup;
1427 : }
1428 :
1429 0 : (*ttf)->fsize = st.st_size;
1430 :
1431 : /* On Mac OS, most likely will happen if a Mac user renames a font file
1432 : * to be .ttf when its really a Mac resource-based font.
1433 : * Size will be 0, but fonts smaller than 4 bytes would be broken anyway.
1434 : */
1435 0 : if ((*ttf)->fsize == 0) {
1436 0 : ret = SF_BADFILE;
1437 0 : goto cleanup;
1438 : }
1439 :
1440 0 : if (((*ttf)->ptr = (sal_uInt8 *) mmap(0, (*ttf)->fsize, PROT_READ, MAP_SHARED, fd, 0)) == MAP_FAILED) {
1441 0 : ret = SF_MEMORY;
1442 0 : goto cleanup;
1443 : }
1444 0 : close(fd);
1445 :
1446 0 : return doOpenTTFont( facenum, *ttf );
1447 :
1448 : cleanup:
1449 0 : if (fd != -1) close(fd);
1450 : /*- t and t->fname have been allocated! */
1451 0 : free((*ttf)->fname);
1452 0 : free(*ttf);
1453 0 : *ttf = NULL;
1454 0 : return ret;
1455 : }
1456 : #endif
1457 :
1458 0 : int OpenTTFontBuffer(const void* pBuffer, sal_uInt32 nLen, sal_uInt32 facenum, TrueTypeFont** ttf)
1459 : {
1460 0 : allocTrueTypeFont( ttf );
1461 0 : if( *ttf == NULL )
1462 0 : return SF_MEMORY;
1463 :
1464 0 : (*ttf)->fname = NULL;
1465 0 : (*ttf)->fsize = nLen;
1466 0 : (*ttf)->ptr = (sal_uInt8*)pBuffer;
1467 :
1468 0 : return doOpenTTFont( facenum, *ttf );
1469 : }
1470 :
1471 0 : static int doOpenTTFont( sal_uInt32 facenum, TrueTypeFont* t )
1472 : {
1473 : int i;
1474 : sal_uInt32 length, tag;
1475 0 : sal_uInt32 tdoffset = 0; /* offset to TableDirectory in a TTC file. For TTF files is 0 */
1476 : int indexfmt;
1477 :
1478 0 : sal_uInt32 version = GetInt32(t->ptr, 0, 1);
1479 :
1480 0 : if ((version == 0x00010000) || (version == T_true)) {
1481 0 : tdoffset = 0;
1482 0 : } else if (version == T_otto) { /* PS-OpenType font */
1483 0 : tdoffset = 0;
1484 0 : } else if (version == T_ttcf) { /* TrueType collection */
1485 0 : if (GetUInt32(t->ptr, 4, 1) != 0x00010000) {
1486 0 : CloseTTFont(t);
1487 0 : return SF_TTFORMAT;
1488 : }
1489 0 : if (facenum >= GetUInt32(t->ptr, 8, 1)) {
1490 0 : CloseTTFont(t);
1491 0 : return SF_FONTNO;
1492 : }
1493 0 : tdoffset = GetUInt32(t->ptr, 12 + 4 * facenum, 1);
1494 : } else {
1495 0 : CloseTTFont(t);
1496 0 : return SF_TTFORMAT;
1497 : }
1498 :
1499 : /* magic number */
1500 0 : t->tag = TTFontClassTag;
1501 :
1502 0 : t->ntables = GetUInt16(t->ptr + tdoffset, 4, 1);
1503 0 : if( t->ntables >= 128 )
1504 0 : return SF_TTFORMAT;
1505 :
1506 0 : t->tables = (const sal_uInt8**)calloc(NUM_TAGS, sizeof(sal_uInt8 *));
1507 : assert(t->tables != 0);
1508 0 : t->tlens = (sal_uInt32*)calloc(NUM_TAGS, sizeof(sal_uInt32));
1509 : assert(t->tlens != 0);
1510 :
1511 : /* parse the tables */
1512 0 : for (i=0; i<(int)t->ntables; i++) {
1513 : int nIndex;
1514 0 : tag = GetUInt32(t->ptr + tdoffset + 12, 16 * i, 1);
1515 0 : switch( tag ) {
1516 0 : case T_maxp: nIndex = O_maxp; break;
1517 0 : case T_glyf: nIndex = O_glyf; break;
1518 0 : case T_head: nIndex = O_head; break;
1519 0 : case T_loca: nIndex = O_loca; break;
1520 0 : case T_name: nIndex = O_name; break;
1521 0 : case T_hhea: nIndex = O_hhea; break;
1522 0 : case T_hmtx: nIndex = O_hmtx; break;
1523 0 : case T_cmap: nIndex = O_cmap; break;
1524 0 : case T_vhea: nIndex = O_vhea; break;
1525 0 : case T_vmtx: nIndex = O_vmtx; break;
1526 0 : case T_OS2 : nIndex = O_OS2; break;
1527 0 : case T_post: nIndex = O_post; break;
1528 0 : case T_kern: nIndex = O_kern; break;
1529 0 : case T_cvt : nIndex = O_cvt; break;
1530 0 : case T_prep: nIndex = O_prep; break;
1531 0 : case T_fpgm: nIndex = O_fpgm; break;
1532 0 : case T_gsub: nIndex = O_gsub; break;
1533 0 : case T_CFF: nIndex = O_CFF; break;
1534 0 : default: nIndex = -1; break;
1535 : }
1536 0 : if( nIndex >= 0 ) {
1537 0 : sal_uInt32 nTableOffset = GetUInt32(t->ptr + tdoffset + 12, 16 * i + 8, 1);
1538 0 : length = GetUInt32(t->ptr + tdoffset + 12, 16 * i + 12, 1);
1539 0 : t->tables[nIndex] = t->ptr + nTableOffset;
1540 0 : t->tlens[nIndex] = length;
1541 : }
1542 : }
1543 :
1544 : /* Fixup offsets when only a TTC extract was provided */
1545 0 : if( facenum == (sal_uInt32)~0 ) {
1546 0 : sal_uInt8* pHead = (sal_uInt8*)t->tables[O_head];
1547 0 : if( !pHead )
1548 0 : return SF_TTFORMAT;
1549 : /* limit Head candidate to TTC extract's limits */
1550 0 : if( pHead > t->ptr + (t->fsize - 54) )
1551 0 : pHead = t->ptr + (t->fsize - 54);
1552 : /* TODO: find better method than searching head table's magic */
1553 0 : sal_uInt8* p = NULL;
1554 0 : for( p = pHead + 12; p > t->ptr; --p ) {
1555 0 : if( p[0]==0x5F && p[1]==0x0F && p[2]==0x3C && p[3]==0xF5 ) {
1556 0 : int nDelta = (pHead + 12) - p;
1557 0 : if( nDelta )
1558 0 : for( int j = 0; j < NUM_TAGS; ++j )
1559 0 : if( t->tables[j] )
1560 0 : *(char**)&t->tables[j] -= nDelta;
1561 0 : break;
1562 : }
1563 : }
1564 0 : if( p <= t->ptr )
1565 0 : return SF_TTFORMAT;
1566 : }
1567 :
1568 : /* Check the table offsets after TTC correction */
1569 0 : for (i=0; i<NUM_TAGS; i++) {
1570 : /* sanity check: table must lay completely within the file
1571 : * at this point one could check the checksum of all contained
1572 : * tables, but this would be quite time intensive.
1573 : * Try to fix tables, so we can cope with minor problems.
1574 : */
1575 :
1576 0 : if( (sal_uInt8*)t->tables[i] < t->ptr )
1577 : {
1578 : #if OSL_DEBUG_LEVEL > 1
1579 : if( t->tables[i] )
1580 : fprintf( stderr, "font file %s has bad table offset %" SAL_PRI_PTRDIFFT "d (tagnum=%d)\n", t->fname, (sal_uInt8*)t->tables[i]-t->ptr, i );
1581 : #endif
1582 0 : t->tlens[i] = 0;
1583 0 : t->tables[i] = NULL;
1584 : }
1585 0 : else if( (sal_uInt8*)t->tables[i] + t->tlens[i] > t->ptr + t->fsize )
1586 : {
1587 0 : int nMaxLen = (t->ptr + t->fsize) - (sal_uInt8*)t->tables[i];
1588 0 : if( nMaxLen < 0 )
1589 0 : nMaxLen = 0;
1590 0 : t->tlens[i] = nMaxLen;
1591 : #if OSL_DEBUG_LEVEL > 1
1592 : fprintf( stderr, "font file %s has too big table (tagnum=%d)\n", t->fname, i );
1593 : #endif
1594 : }
1595 : }
1596 :
1597 : /* At this point TrueTypeFont is constructed, now need to verify the font format
1598 : and read the basic font properties */
1599 :
1600 : /* The following tables are absolutely required:
1601 : * maxp, head, name, cmap
1602 : */
1603 :
1604 0 : if( !(getTable(t, O_maxp) && getTable(t, O_head) && getTable(t, O_name) && getTable(t, O_cmap)) ) {
1605 0 : CloseTTFont(t);
1606 0 : return SF_TTFORMAT;
1607 : }
1608 :
1609 0 : const sal_uInt8* table = getTable(t, O_maxp);
1610 0 : t->nglyphs = GetUInt16(table, 4, 1);
1611 :
1612 0 : table = getTable(t, O_head);
1613 0 : t->unitsPerEm = GetUInt16(table, 18, 1);
1614 0 : indexfmt = GetInt16(table, 50, 1);
1615 :
1616 0 : if( ((indexfmt != 0) && (indexfmt != 1)) || (t->unitsPerEm <= 0) ) {
1617 0 : CloseTTFont(t);
1618 0 : return SF_TTFORMAT;
1619 : }
1620 :
1621 0 : if( getTable(t, O_glyf) && getTable(t, O_loca) ) /* TTF or TTF-OpenType */
1622 : {
1623 0 : int k = (getTableSize(t, O_loca) / (indexfmt ? 4 : 2)) - 1;
1624 0 : if( k < (int)t->nglyphs ) /* Hack for broken Chinese fonts */
1625 0 : t->nglyphs = k;
1626 :
1627 0 : table = getTable(t, O_loca);
1628 0 : t->goffsets = (sal_uInt32 *) calloc(1+t->nglyphs, sizeof(sal_uInt32));
1629 : assert(t->goffsets != 0);
1630 :
1631 0 : for( i = 0; i <= (int)t->nglyphs; ++i )
1632 0 : t->goffsets[i] = indexfmt ? GetUInt32(table, i << 2, 1) : (sal_uInt32)GetUInt16(table, i << 1, 1) << 1;
1633 0 : } else if( getTable(t, O_CFF) ) { /* PS-OpenType */
1634 0 : t->goffsets = (sal_uInt32 *) calloc(1+t->nglyphs, sizeof(sal_uInt32));
1635 : /* TODO: implement to get subsetting */
1636 : assert(t->goffsets != 0);
1637 : } else {
1638 0 : CloseTTFont(t);
1639 0 : return SF_TTFORMAT;
1640 : }
1641 :
1642 0 : table = getTable(t, O_hhea);
1643 0 : t->numberOfHMetrics = (table != 0) ? GetUInt16(table, 34, 1) : 0;
1644 :
1645 0 : table = getTable(t, O_vhea);
1646 0 : t->numOfLongVerMetrics = (table != 0) ? GetUInt16(table, 34, 1) : 0;
1647 :
1648 0 : GetNames(t);
1649 0 : FindCmap(t);
1650 0 : GetKern(t);
1651 0 : ReadGSUB( t, 0, 0 );
1652 :
1653 0 : return SF_OK;
1654 : }
1655 :
1656 0 : void CloseTTFont(TrueTypeFont *ttf)
1657 : {
1658 : #if !defined(WIN32)
1659 0 : if( ttf->fname )
1660 0 : munmap((char *) ttf->ptr, ttf->fsize);
1661 : #endif
1662 0 : free(ttf->fname);
1663 0 : free(ttf->goffsets);
1664 0 : free(ttf->psname);
1665 0 : free(ttf->family);
1666 0 : if( ttf->ufamily )
1667 0 : free( ttf->ufamily );
1668 0 : free(ttf->subfamily);
1669 0 : if( ttf->usubfamily )
1670 0 : free( ttf->usubfamily );
1671 0 : free(ttf->tables);
1672 0 : free(ttf->tlens);
1673 0 : free(ttf->kerntables);
1674 :
1675 0 : ReleaseGSUB(ttf);
1676 :
1677 0 : free(ttf);
1678 0 : return;
1679 : }
1680 :
1681 0 : int GetTTGlyphPoints(TrueTypeFont *ttf, sal_uInt32 glyphID, ControlPoint **pointArray)
1682 : {
1683 0 : return GetTTGlyphOutline(ttf, glyphID, pointArray, 0, 0);
1684 : }
1685 :
1686 0 : int GetTTGlyphComponents(TrueTypeFont *ttf, sal_uInt32 glyphID, std::vector< sal_uInt32 >& glyphlist)
1687 : {
1688 0 : int n = 1;
1689 :
1690 0 : if( glyphID >= ttf->nglyphs )
1691 0 : return 0;
1692 :
1693 0 : const sal_uInt8* glyf = getTable(ttf, O_glyf);
1694 0 : const sal_uInt8* ptr = glyf + ttf->goffsets[glyphID];
1695 :
1696 0 : glyphlist.push_back( glyphID );
1697 :
1698 0 : if (GetInt16(ptr, 0, 1) == -1) {
1699 : sal_uInt16 flags, index;
1700 0 : ptr += 10;
1701 0 : do {
1702 0 : flags = GetUInt16(ptr, 0, 1);
1703 0 : index = GetUInt16(ptr, 2, 1);
1704 :
1705 0 : ptr += 4;
1706 0 : n += GetTTGlyphComponents(ttf, index, glyphlist);
1707 :
1708 0 : if (flags & ARG_1_AND_2_ARE_WORDS) {
1709 0 : ptr += 4;
1710 : } else {
1711 0 : ptr += 2;
1712 : }
1713 :
1714 0 : if (flags & WE_HAVE_A_SCALE) {
1715 0 : ptr += 2;
1716 0 : } else if (flags & WE_HAVE_AN_X_AND_Y_SCALE) {
1717 0 : ptr += 4;
1718 0 : } else if (flags & WE_HAVE_A_TWO_BY_TWO) {
1719 0 : ptr += 8;
1720 : }
1721 0 : } while (flags & MORE_COMPONENTS);
1722 : }
1723 :
1724 0 : return n;
1725 : }
1726 :
1727 : #ifndef NO_TYPE3
1728 0 : int CreateT3FromTTGlyphs(TrueTypeFont *ttf, FILE *outf, const char *fname,
1729 : sal_uInt16 *glyphArray, sal_uInt8 *encoding, int nGlyphs,
1730 : int wmode)
1731 : {
1732 : ControlPoint *pa;
1733 : PSPathElement *path;
1734 : int i, j, r, n;
1735 0 : const sal_uInt8* table = getTable(ttf, O_head);
1736 : TTGlyphMetrics metrics;
1737 0 : int UPEm = ttf->unitsPerEm;
1738 :
1739 0 : const char *h01 = "%%!PS-AdobeFont-%d.%d-%d.%d\n";
1740 0 : const char *h02 = "%% Creator: %s %s %s\n";
1741 0 : const char *h09 = "%% Original font name: %s\n";
1742 :
1743 : const char *h10 =
1744 : "30 dict begin\n"
1745 : "/PaintType 0 def\n"
1746 : "/FontType 3 def\n"
1747 0 : "/StrokeWidth 0 def\n";
1748 :
1749 0 : const char *h11 = "/FontName (%s) cvn def\n";
1750 :
1751 : /*
1752 : const char *h12 = "%/UniqueID %d def\n";
1753 : */
1754 0 : const char *h13 = "/FontMatrix [.001 0 0 .001 0 0] def\n";
1755 0 : const char *h14 = "/FontBBox [%d %d %d %d] def\n";
1756 :
1757 : const char *h15=
1758 : "/Encoding 256 array def\n"
1759 0 : " 0 1 255 {Encoding exch /.notdef put} for\n";
1760 :
1761 0 : const char *h16 = " Encoding %d /glyph%d put\n";
1762 0 : const char *h17 = "/XUID [103 0 0 16#%08X %d 16#%08X 16#%08X] def\n";
1763 :
1764 0 : const char *h30 = "/CharProcs %d dict def\n";
1765 0 : const char *h31 = " CharProcs begin\n";
1766 0 : const char *h32 = " /.notdef {} def\n";
1767 0 : const char *h33 = " /glyph%d {\n";
1768 0 : const char *h34 = " } bind def\n";
1769 0 : const char *h35 = " end\n";
1770 :
1771 : const char *h40 =
1772 : "/BuildGlyph {\n"
1773 : " exch /CharProcs get exch\n"
1774 : " 2 copy known not\n"
1775 : " {pop /.notdef} if\n"
1776 : " get exec\n"
1777 : "} bind def\n"
1778 : "/BuildChar {\n"
1779 : " 1 index /Encoding get exch get\n"
1780 : " 1 index /BuildGlyph get exec\n"
1781 : "} bind def\n"
1782 0 : "currentdict end\n";
1783 :
1784 0 : const char *h41 = "(%s) cvn exch definefont pop\n";
1785 :
1786 0 : if (!((nGlyphs > 0) && (nGlyphs <= 256))) return SF_GLYPHNUM;
1787 0 : if (!glyphArray) return SF_BADARG;
1788 0 : if (!fname) fname = ttf->psname;
1789 :
1790 0 : fprintf(outf, h01, GetInt16(table, 0, 1), GetUInt16(table, 2, 1), GetInt16(table, 4, 1), GetUInt16(table, 6, 1));
1791 0 : fprintf(outf, h02, modname, modver, modextra);
1792 0 : fprintf(outf, h09, ttf->psname);
1793 :
1794 0 : fprintf(outf, "%s", h10);
1795 0 : fprintf(outf, h11, fname);
1796 : /* fprintf(outf, h12, 4000000); */
1797 :
1798 : /* XUID generation:
1799 : * 103 0 0 C1 C2 C3 C4
1800 : * C1 - CRC-32 of the entire source TrueType font
1801 : * C2 - number of glyphs in the subset
1802 : * C3 - CRC-32 of the glyph array
1803 : * C4 - CRC-32 of the encoding array
1804 : *
1805 : * All CRC-32 numbers are presented as hexadecimal numbers
1806 : */
1807 :
1808 0 : fprintf(outf, h17, rtl_crc32(0, ttf->ptr, ttf->fsize), nGlyphs, rtl_crc32(0, glyphArray, nGlyphs * 2), rtl_crc32(0, encoding, nGlyphs));
1809 0 : fprintf(outf, "%s", h13);
1810 0 : fprintf(outf, h14, XUnits(UPEm, GetInt16(table, 36, 1)), XUnits(UPEm, GetInt16(table, 38, 1)), XUnits(UPEm, GetInt16(table, 40, 1)), XUnits(UPEm, GetInt16(table, 42, 1)));
1811 0 : fprintf(outf, "%s", h15);
1812 :
1813 0 : for (i = 0; i < nGlyphs; i++) {
1814 0 : fprintf(outf, h16, encoding[i], i);
1815 : }
1816 :
1817 0 : fprintf(outf, h30, nGlyphs+1);
1818 0 : fprintf(outf, "%s", h31);
1819 0 : fprintf(outf, "%s", h32);
1820 :
1821 0 : for (i = 0; i < nGlyphs; i++) {
1822 0 : fprintf(outf, h33, i);
1823 0 : r = GetTTGlyphOutline(ttf, glyphArray[i] < ttf->nglyphs ? glyphArray[i] : 0, &pa, &metrics, 0);
1824 :
1825 0 : if (r > 0) {
1826 0 : n = BSplineToPSPath(pa, r, &path);
1827 : } else {
1828 0 : n = 0; /* glyph might have zero contours but valid metrics ??? */
1829 0 : path = 0;
1830 0 : if (r < 0) { /* glyph is not present in the font - pa array was not allocated, so no need to free it */
1831 0 : continue;
1832 : }
1833 : }
1834 : fprintf(outf, "\t%d %d %d %d %d %d setcachedevice\n",
1835 0 : wmode == 0 ? XUnits(UPEm, metrics.aw) : 0,
1836 0 : wmode == 0 ? 0 : -XUnits(UPEm, metrics.ah),
1837 : XUnits(UPEm, metrics.xMin),
1838 : XUnits(UPEm, metrics.yMin),
1839 : XUnits(UPEm, metrics.xMax),
1840 0 : XUnits(UPEm, metrics.yMax));
1841 :
1842 0 : for (j = 0; j < n; j++)
1843 : {
1844 0 : switch (path[j].type)
1845 : {
1846 : case PS_MOVETO:
1847 0 : fprintf(outf, "\t%d %d moveto\n", XUnits(UPEm, path[j].x1), XUnits(UPEm, path[j].y1));
1848 0 : break;
1849 :
1850 : case PS_LINETO:
1851 0 : fprintf(outf, "\t%d %d lineto\n", XUnits(UPEm, path[j].x1), XUnits(UPEm, path[j].y1));
1852 0 : break;
1853 :
1854 : case PS_CURVETO:
1855 0 : fprintf(outf, "\t%d %d %d %d %d %d curveto\n", XUnits(UPEm, path[j].x1), XUnits(UPEm, path[j].y1), XUnits(UPEm, path[j].x2), XUnits(UPEm, path[j].y2), XUnits(UPEm, path[j].x3), XUnits(UPEm, path[j].y3));
1856 0 : break;
1857 :
1858 : case PS_CLOSEPATH:
1859 0 : fprintf(outf, "\tclosepath\n");
1860 0 : break;
1861 : case PS_NOOP:
1862 0 : break;
1863 : }
1864 : }
1865 0 : if (n > 0) fprintf(outf, "\tfill\n"); /* if glyph is not a whitespace character */
1866 :
1867 0 : fprintf(outf, "%s", h34);
1868 :
1869 0 : free(pa);
1870 0 : free(path);
1871 : }
1872 0 : fprintf(outf, "%s", h35);
1873 :
1874 0 : fprintf(outf, "%s", h40);
1875 0 : fprintf(outf, h41, fname);
1876 :
1877 0 : return SF_OK;
1878 : }
1879 : #endif
1880 :
1881 : #ifndef NO_TTCR
1882 0 : int CreateTTFromTTGlyphs(TrueTypeFont *ttf,
1883 : const char *fname,
1884 : sal_uInt16 *glyphArray,
1885 : sal_uInt8 *encoding,
1886 : int nGlyphs,
1887 : int nNameRecs,
1888 : NameRecord *nr,
1889 : sal_uInt32 flags)
1890 : {
1891 : TrueTypeCreator *ttcr;
1892 0 : TrueTypeTable *head=0, *hhea=0, *maxp=0, *cvt=0, *prep=0, *glyf=0, *fpgm=0, *cmap=0, *name=0, *post = 0, *os2 = 0;
1893 : int i;
1894 : int res;
1895 :
1896 0 : TrueTypeCreatorNewEmpty(T_true, &ttcr);
1897 :
1898 : /** name **/
1899 :
1900 0 : if (flags & TTCF_AutoName) {
1901 : /* not implemented yet
1902 : NameRecord *names;
1903 : NameRecord newname;
1904 : int n = GetTTNameRecords(ttf, &names);
1905 : int n1 = 0, n2 = 0, n3 = 0, n4 = 0, n5 = 0, n6 = 0;
1906 : sal_uInt8 *cp1;
1907 : sal_uInt8 suffix[32];
1908 : sal_uInt32 c1 = crc32(glyphArray, nGlyphs * 2);
1909 : sal_uInt32 c2 = crc32(encoding, nGlyphs);
1910 : int len;
1911 : snprintf(suffix, 31, "S%08X%08X-%d", c1, c2, nGlyphs);
1912 :
1913 : name = TrueTypeTableNew_name(0, 0);
1914 : for (i = 0; i < n; i++) {
1915 : if (names[i].platformID == 1 && names[i].encodingID == 0 && names[i].languageID == 0 && names[i].nameID == 1) {
1916 :
1917 : memcpy(newname, names+i, sizeof(NameRecord));
1918 : newname.slen = name[i].slen + strlen(suffix);
1919 : */
1920 0 : const sal_uInt8 ptr[] = {0,'T',0,'r',0,'u',0,'e',0,'T',0,'y',0,'p',0,'e',0,'S',0,'u',0,'b',0,'s',0,'e',0,'t'};
1921 0 : NameRecord n1 = {1, 0, 0, 6, 14, (sal_uInt8*)"TrueTypeSubset"};
1922 0 : NameRecord n2 = {3, 1, 1033, 6, 28, 0};
1923 0 : n2.sptr = (sal_uInt8 *) ptr;
1924 0 : name = TrueTypeTableNew_name(0, 0);
1925 0 : nameAdd(name, &n1);
1926 0 : nameAdd(name, &n2);
1927 : } else {
1928 0 : if (nNameRecs == 0) {
1929 : NameRecord *names;
1930 0 : int n = GetTTNameRecords(ttf, &names);
1931 0 : name = TrueTypeTableNew_name(n, names);
1932 0 : DisposeNameRecords(names, n);
1933 : } else {
1934 0 : name = TrueTypeTableNew_name(nNameRecs, nr);
1935 : }
1936 : }
1937 :
1938 : /** maxp **/
1939 0 : maxp = TrueTypeTableNew_maxp(getTable(ttf, O_maxp), getTableSize(ttf, O_maxp));
1940 :
1941 : /** hhea **/
1942 0 : const sal_uInt8* p = getTable(ttf, O_hhea);
1943 0 : if (p) {
1944 0 : hhea = TrueTypeTableNew_hhea(GetUInt16(p, 4, 1), GetUInt16(p, 6, 1), GetUInt16(p, 8, 1), GetUInt16(p, 18, 1), GetUInt16(p, 20, 1));
1945 : } else {
1946 0 : hhea = TrueTypeTableNew_hhea(0, 0, 0, 0, 0);
1947 : }
1948 :
1949 : /** head **/
1950 :
1951 0 : p = getTable(ttf, O_head);
1952 : assert(p != 0);
1953 : head = TrueTypeTableNew_head(GetUInt32(p, 4, 1),
1954 0 : GetUInt16(p, 16, 1),
1955 0 : GetUInt16(p, 18, 1),
1956 : p+20,
1957 0 : GetUInt16(p, 44, 1),
1958 0 : GetUInt16(p, 46, 1),
1959 0 : GetInt16(p, 48, 1));
1960 :
1961 : /** glyf **/
1962 :
1963 0 : glyf = TrueTypeTableNew_glyf();
1964 0 : sal_uInt32* gID = (sal_uInt32*)scalloc(nGlyphs, sizeof(sal_uInt32));
1965 :
1966 0 : for (i = 0; i < nGlyphs; i++) {
1967 0 : gID[i] = glyfAdd(glyf, GetTTRawGlyphData(ttf, glyphArray[i]), ttf);
1968 : }
1969 :
1970 : /** cmap **/
1971 0 : cmap = TrueTypeTableNew_cmap();
1972 :
1973 0 : for (i=0; i < nGlyphs; i++) {
1974 0 : cmapAdd(cmap, 0x010000, encoding[i], gID[i]);
1975 : }
1976 :
1977 : /** cvt **/
1978 0 : if ((p = getTable(ttf, O_cvt)) != 0) {
1979 0 : cvt = TrueTypeTableNew(T_cvt, getTableSize(ttf, O_cvt), p);
1980 : }
1981 :
1982 : /** prep **/
1983 0 : if ((p = getTable(ttf, O_prep)) != 0) {
1984 0 : prep = TrueTypeTableNew(T_prep, getTableSize(ttf, O_prep), p);
1985 : }
1986 :
1987 : /** fpgm **/
1988 0 : if ((p = getTable(ttf, O_fpgm)) != 0) {
1989 0 : fpgm = TrueTypeTableNew(T_fpgm, getTableSize(ttf, O_fpgm), p);
1990 : }
1991 :
1992 : /** post **/
1993 0 : if ((p = getTable(ttf, O_post)) != 0) {
1994 : post = TrueTypeTableNew_post(0x00030000,
1995 : GetUInt32(p, 4, 1),
1996 0 : GetUInt16(p, 8, 1),
1997 0 : GetUInt16(p, 10, 1),
1998 0 : GetUInt16(p, 12, 1));
1999 : } else {
2000 0 : post = TrueTypeTableNew_post(0x00030000, 0, 0, 0, 0);
2001 : }
2002 :
2003 0 : if (flags & TTCF_IncludeOS2) {
2004 0 : if ((p = getTable(ttf, O_OS2)) != 0) {
2005 0 : os2 = TrueTypeTableNew(T_OS2, getTableSize(ttf, O_OS2), p);
2006 : }
2007 : }
2008 :
2009 0 : AddTable(ttcr, name); AddTable(ttcr, maxp); AddTable(ttcr, hhea);
2010 0 : AddTable(ttcr, head); AddTable(ttcr, glyf); AddTable(ttcr, cmap);
2011 0 : AddTable(ttcr, cvt ); AddTable(ttcr, prep); AddTable(ttcr, fpgm);
2012 0 : AddTable(ttcr, post); AddTable(ttcr, os2);
2013 :
2014 0 : if ((res = StreamToFile(ttcr, fname)) != SF_OK) {
2015 : #if OSL_DEBUG_LEVEL > 1
2016 : fprintf(stderr, "StreamToFile: error code: %d.\n", res);
2017 : #endif
2018 : }
2019 :
2020 0 : TrueTypeCreatorDispose(ttcr);
2021 0 : free(gID);
2022 :
2023 0 : return res;
2024 : }
2025 : #endif
2026 :
2027 : #ifndef NO_TYPE42
2028 0 : static GlyphOffsets *GlyphOffsetsNew(sal_uInt8 *sfntP)
2029 : {
2030 0 : GlyphOffsets* res = (GlyphOffsets*)smalloc(sizeof(GlyphOffsets));
2031 0 : sal_uInt8 *loca = NULL;
2032 0 : sal_uInt16 i, numTables = GetUInt16(sfntP, 4, 1);
2033 0 : sal_uInt32 locaLen = 0;
2034 0 : sal_Int16 indexToLocFormat = 0;
2035 :
2036 0 : for (i = 0; i < numTables; i++) {
2037 0 : sal_uInt32 tag = GetUInt32(sfntP + 12, 16 * i, 1);
2038 0 : sal_uInt32 off = GetUInt32(sfntP + 12, 16 * i + 8, 1);
2039 0 : sal_uInt32 len = GetUInt32(sfntP + 12, 16 * i + 12, 1);
2040 :
2041 0 : if (tag == T_loca) {
2042 0 : loca = sfntP + off;
2043 0 : locaLen = len;
2044 0 : } else if (tag == T_head) {
2045 0 : indexToLocFormat = GetInt16(sfntP + off, 50, 1);
2046 : }
2047 : }
2048 :
2049 0 : res->nGlyphs = locaLen / ((indexToLocFormat == 1) ? 4 : 2);
2050 : assert(res->nGlyphs != 0);
2051 0 : res->offs = (sal_uInt32*)scalloc(res->nGlyphs, sizeof(sal_uInt32));
2052 :
2053 0 : for (i = 0; i < res->nGlyphs; i++) {
2054 0 : if (indexToLocFormat == 1) {
2055 0 : res->offs[i] = GetUInt32(loca, i * 4, 1);
2056 : } else {
2057 0 : res->offs[i] = GetUInt16(loca, i * 2, 1) << 1;
2058 : }
2059 : }
2060 0 : return res;
2061 : }
2062 :
2063 0 : static void GlyphOffsetsDispose(GlyphOffsets *_this)
2064 : {
2065 0 : if (_this) {
2066 0 : free(_this->offs);
2067 0 : free(_this);
2068 : }
2069 0 : }
2070 :
2071 0 : static void DumpSfnts(FILE *outf, sal_uInt8 *sfntP)
2072 : {
2073 0 : HexFmt *h = HexFmtNew(outf);
2074 0 : sal_uInt16 i, numTables = GetUInt16(sfntP, 4, 1);
2075 0 : GlyphOffsets *go = GlyphOffsetsNew(sfntP);
2076 0 : sal_uInt8 pad[] = {0,0,0,0}; /* zeroes */
2077 :
2078 : assert(numTables <= 9); /* Type42 has 9 required tables */
2079 :
2080 0 : sal_uInt32* offs = (sal_uInt32*)scalloc(numTables, sizeof(sal_uInt32));
2081 : // sal_uInt32* lens = (sal_uInt32*)scalloc(numTables, sizeof(sal_uInt32));
2082 :
2083 0 : fputs("/sfnts [", outf);
2084 0 : HexFmtOpenString(h);
2085 0 : HexFmtBlockWrite(h, sfntP, 12); /* stream out the Offset Table */
2086 0 : HexFmtBlockWrite(h, sfntP+12, 16 * numTables); /* stream out the Table Directory */
2087 :
2088 0 : for (i=0; i<numTables; i++) {
2089 0 : sal_uInt32 tag = GetUInt32(sfntP + 12, 16 * i, 1);
2090 0 : sal_uInt32 off = GetUInt32(sfntP + 12, 16 * i + 8, 1);
2091 0 : sal_uInt32 len = GetUInt32(sfntP + 12, 16 * i + 12, 1);
2092 :
2093 0 : if (tag != T_glyf) {
2094 0 : HexFmtBlockWrite(h, sfntP + off, len);
2095 : } else {
2096 0 : sal_uInt8 *glyf = sfntP + off;
2097 : sal_uInt32 o, l, j;
2098 0 : for (j = 0; j < go->nGlyphs - 1; j++) {
2099 0 : o = go->offs[j];
2100 0 : l = go->offs[j + 1] - o;
2101 0 : HexFmtBlockWrite(h, glyf + o, l);
2102 : }
2103 : }
2104 0 : HexFmtBlockWrite(h, pad, (4 - (len & 3)) & 3);
2105 : }
2106 0 : HexFmtCloseString(h);
2107 0 : fputs("] def\n", outf);
2108 0 : GlyphOffsetsDispose(go);
2109 0 : HexFmtDispose(h);
2110 0 : free(offs);
2111 : // free(lens);
2112 0 : }
2113 :
2114 0 : int CreateT42FromTTGlyphs(TrueTypeFont *ttf,
2115 : FILE *outf,
2116 : const char *psname,
2117 : sal_uInt16 *glyphArray,
2118 : sal_uInt8 *encoding,
2119 : int nGlyphs)
2120 : {
2121 : TrueTypeCreator *ttcr;
2122 0 : TrueTypeTable *head=0, *hhea=0, *maxp=0, *cvt=0, *prep=0, *glyf=0, *fpgm=0;
2123 : int i;
2124 : int res;
2125 :
2126 : sal_uInt32 ver, rev;
2127 :
2128 : sal_uInt8 *sfntP;
2129 : sal_uInt32 sfntLen;
2130 0 : int UPEm = ttf->unitsPerEm;
2131 :
2132 0 : if (nGlyphs >= 256) return SF_GLYPHNUM;
2133 :
2134 : assert(psname != 0);
2135 :
2136 0 : TrueTypeCreatorNewEmpty(T_true, &ttcr);
2137 :
2138 : /* head */
2139 0 : const sal_uInt8* p = getTable(ttf, O_head);
2140 0 : const sal_uInt8* headP = p;
2141 : assert(p != 0);
2142 0 : head = TrueTypeTableNew_head(GetUInt32(p, 4, 1), GetUInt16(p, 16, 1), GetUInt16(p, 18, 1), p+20, GetUInt16(p, 44, 1), GetUInt16(p, 46, 1), GetInt16(p, 48, 1));
2143 0 : ver = GetUInt32(p, 0, 1);
2144 0 : rev = GetUInt32(p, 4, 1);
2145 :
2146 : /** hhea **/
2147 0 : p = getTable(ttf, O_hhea);
2148 0 : if (p) {
2149 0 : hhea = TrueTypeTableNew_hhea(GetUInt16(p, 4, 1), GetUInt16(p, 6, 1), GetUInt16(p, 8, 1), GetUInt16(p, 18, 1), GetUInt16(p, 20, 1));
2150 : } else {
2151 0 : hhea = TrueTypeTableNew_hhea(0, 0, 0, 0, 0);
2152 : }
2153 :
2154 : /** maxp **/
2155 0 : maxp = TrueTypeTableNew_maxp(getTable(ttf, O_maxp), getTableSize(ttf, O_maxp));
2156 :
2157 : /** cvt **/
2158 0 : if ((p = getTable(ttf, O_cvt)) != 0) {
2159 0 : cvt = TrueTypeTableNew(T_cvt, getTableSize(ttf, O_cvt), p);
2160 : }
2161 :
2162 : /** prep **/
2163 0 : if ((p = getTable(ttf, O_prep)) != 0) {
2164 0 : prep = TrueTypeTableNew(T_prep, getTableSize(ttf, O_prep), p);
2165 : }
2166 :
2167 : /** fpgm **/
2168 0 : if ((p = getTable(ttf, O_fpgm)) != 0) {
2169 0 : fpgm = TrueTypeTableNew(T_fpgm, getTableSize(ttf, O_fpgm), p);
2170 : }
2171 :
2172 : /** glyf **/
2173 0 : glyf = TrueTypeTableNew_glyf();
2174 0 : sal_uInt16* gID = (sal_uInt16*)scalloc(nGlyphs, sizeof(sal_uInt32));
2175 :
2176 0 : for (i = 0; i < nGlyphs; i++) {
2177 0 : gID[i] = (sal_uInt16)glyfAdd(glyf, GetTTRawGlyphData(ttf, glyphArray[i]), ttf);
2178 : }
2179 :
2180 0 : AddTable(ttcr, head); AddTable(ttcr, hhea); AddTable(ttcr, maxp); AddTable(ttcr, cvt);
2181 0 : AddTable(ttcr, prep); AddTable(ttcr, glyf); AddTable(ttcr, fpgm);
2182 :
2183 0 : if ((res = StreamToMemory(ttcr, &sfntP, &sfntLen)) != SF_OK) {
2184 0 : TrueTypeCreatorDispose(ttcr);
2185 0 : free(gID);
2186 0 : return res;
2187 : }
2188 :
2189 0 : fprintf(outf, "%%!PS-TrueTypeFont-%d.%d-%d.%d\n", (int)(ver>>16), (int)(ver & 0xFFFF), (int)(rev>>16), (int)(rev & 0xFFFF));
2190 0 : fprintf(outf, "%%%%Creator: %s %s %s\n", modname, modver, modextra);
2191 0 : fprintf(outf, "%%- Font subset generated from a source font file: '%s'\n", ttf->fname);
2192 0 : fprintf(outf, "%%- Original font name: %s\n", ttf->psname);
2193 0 : fprintf(outf, "%%- Original font family: %s\n", ttf->family);
2194 0 : fprintf(outf, "%%- Original font sub-family: %s\n", ttf->subfamily);
2195 0 : fprintf(outf, "11 dict begin\n");
2196 0 : fprintf(outf, "/FontName (%s) cvn def\n", psname);
2197 0 : fprintf(outf, "/PaintType 0 def\n");
2198 0 : fprintf(outf, "/FontMatrix [1 0 0 1 0 0] def\n");
2199 0 : fprintf(outf, "/FontBBox [%d %d %d %d] def\n", XUnits(UPEm, GetInt16(headP, 36, 1)), XUnits(UPEm, GetInt16(headP, 38, 1)), XUnits(UPEm, GetInt16(headP, 40, 1)), XUnits(UPEm, GetInt16(headP, 42, 1)));
2200 0 : fprintf(outf, "/FontType 42 def\n");
2201 0 : fprintf(outf, "/Encoding 256 array def\n");
2202 0 : fprintf(outf, " 0 1 255 {Encoding exch /.notdef put} for\n");
2203 :
2204 0 : for (i = 1; i<nGlyphs; i++) {
2205 0 : fprintf(outf, "Encoding %d /glyph%d put\n", encoding[i], gID[i]);
2206 : }
2207 0 : fprintf(outf, "/XUID [103 0 1 16#%08X %d 16#%08X 16#%08X] def\n", (unsigned int)rtl_crc32(0, ttf->ptr, ttf->fsize), (unsigned int)nGlyphs, (unsigned int)rtl_crc32(0, glyphArray, nGlyphs * 2), (unsigned int)rtl_crc32(0, encoding, nGlyphs));
2208 :
2209 0 : DumpSfnts(outf, sfntP);
2210 :
2211 : /* dump charstrings */
2212 0 : fprintf(outf, "/CharStrings %d dict dup begin\n", nGlyphs);
2213 0 : fprintf(outf, "/.notdef 0 def\n");
2214 0 : for (i = 1; i < (int)glyfCount(glyf); i++) {
2215 0 : fprintf(outf,"/glyph%d %d def\n", i, i);
2216 : }
2217 0 : fprintf(outf, "end readonly def\n");
2218 :
2219 0 : fprintf(outf, "FontName currentdict end definefont pop\n");
2220 0 : TrueTypeCreatorDispose(ttcr);
2221 0 : free(gID);
2222 0 : free(sfntP);
2223 0 : return SF_OK;
2224 : }
2225 : #endif
2226 :
2227 : #ifndef NO_MAPPERS
2228 0 : int MapString(TrueTypeFont *ttf, sal_uInt16 *str, int nchars, sal_uInt16 *glyphArray, bool bvertical)
2229 : {
2230 : int i;
2231 : sal_uInt16 *cp;
2232 :
2233 0 : if (ttf->cmapType == CMAP_NOT_USABLE ) return -1;
2234 0 : if (!nchars) return 0;
2235 :
2236 0 : if (glyphArray == 0) {
2237 0 : cp = str;
2238 : } else {
2239 0 : cp = glyphArray;
2240 : }
2241 :
2242 0 : switch (ttf->cmapType) {
2243 : case CMAP_MS_Symbol:
2244 0 : if( ttf->mapper == getGlyph0 ) {
2245 : sal_uInt16 aChar;
2246 0 : for( i = 0; i < nchars; i++ ) {
2247 0 : aChar = str[i];
2248 0 : if( ( aChar & 0xf000 ) == 0xf000 )
2249 0 : aChar &= 0x00ff;
2250 0 : cp[i] = aChar;
2251 : }
2252 : }
2253 0 : else if( glyphArray )
2254 0 : memcpy(glyphArray, str, nchars * 2);
2255 0 : break;
2256 :
2257 : case CMAP_MS_Unicode:
2258 0 : if (glyphArray != 0) {
2259 0 : memcpy(glyphArray, str, nchars * 2);
2260 : }
2261 0 : break;
2262 :
2263 0 : case CMAP_MS_ShiftJIS: TranslateString12(str, cp, nchars); break;
2264 0 : case CMAP_MS_Big5: TranslateString13(str, cp, nchars); break;
2265 0 : case CMAP_MS_PRC: TranslateString14(str, cp, nchars); break;
2266 0 : case CMAP_MS_Wansung: TranslateString15(str, cp, nchars); break;
2267 0 : case CMAP_MS_Johab: TranslateString16(str, cp, nchars); break;
2268 : }
2269 :
2270 0 : for (i = 0; i < nchars; i++) {
2271 0 : cp[i] = (sal_uInt16)ttf->mapper(ttf->cmap, cp[i]);
2272 0 : if (cp[i]!=0 && bvertical)
2273 0 : cp[i] = (sal_uInt16)UseGSUB(ttf,cp[i]);
2274 : }
2275 0 : return nchars;
2276 : }
2277 :
2278 0 : sal_uInt16 MapChar(TrueTypeFont *ttf, sal_uInt16 ch, bool bvertical)
2279 : {
2280 0 : switch (ttf->cmapType) {
2281 : case CMAP_MS_Symbol:
2282 :
2283 0 : if( ttf->mapper == getGlyph0 && ( ch & 0xf000 ) == 0xf000 )
2284 0 : ch &= 0x00ff;
2285 0 : return (sal_uInt16)ttf->mapper(ttf->cmap, ch );
2286 :
2287 0 : case CMAP_MS_Unicode: break;
2288 0 : case CMAP_MS_ShiftJIS: ch = TranslateChar12(ch); break;
2289 0 : case CMAP_MS_Big5: ch = TranslateChar13(ch); break;
2290 0 : case CMAP_MS_PRC: ch = TranslateChar14(ch); break;
2291 0 : case CMAP_MS_Wansung: ch = TranslateChar15(ch); break;
2292 0 : case CMAP_MS_Johab: ch = TranslateChar16(ch); break;
2293 0 : default: return 0;
2294 : }
2295 0 : ch = (sal_uInt16)ttf->mapper(ttf->cmap, ch);
2296 0 : if (ch!=0 && bvertical)
2297 0 : ch = (sal_uInt16)UseGSUB(ttf,ch);
2298 0 : return ch;
2299 : }
2300 :
2301 0 : int DoesVerticalSubstitution( TrueTypeFont *ttf, int bvertical)
2302 : {
2303 0 : int nRet = 0;
2304 0 : if( bvertical)
2305 0 : nRet = HasVerticalGSUB( ttf);
2306 0 : return nRet;
2307 : }
2308 :
2309 : #endif
2310 :
2311 0 : int GetTTGlyphCount( TrueTypeFont* ttf )
2312 : {
2313 0 : return ttf->nglyphs;
2314 : }
2315 :
2316 0 : bool GetSfntTable( TrueTypeFont* ttf, int nSubtableIndex,
2317 : const sal_uInt8** ppRawBytes, int* pRawLength )
2318 : {
2319 0 : if( (nSubtableIndex < 0) || (nSubtableIndex >= NUM_TAGS) )
2320 0 : return false;
2321 0 : *pRawLength = ttf->tlens[ nSubtableIndex ];
2322 0 : *ppRawBytes = ttf->tables[ nSubtableIndex ];
2323 0 : bool bOk = (*pRawLength > 0) && (*ppRawBytes != NULL);
2324 0 : return bOk;
2325 : }
2326 :
2327 0 : TTSimpleGlyphMetrics *GetTTSimpleGlyphMetrics(TrueTypeFont *ttf, sal_uInt16 *glyphArray, int nGlyphs, bool vertical)
2328 : {
2329 : const sal_uInt8* pTable;
2330 : sal_uInt32 n;
2331 : int nTableSize;
2332 :
2333 0 : if (!vertical) {
2334 0 : n = ttf->numberOfHMetrics;
2335 0 : pTable = getTable( ttf, O_hmtx );
2336 0 : nTableSize = getTableSize( ttf, O_hmtx );
2337 : } else {
2338 0 : n = ttf->numOfLongVerMetrics;
2339 0 : pTable = getTable( ttf, O_vmtx );
2340 0 : nTableSize = getTableSize( ttf, O_vmtx );
2341 : }
2342 :
2343 0 : if (!nGlyphs || !glyphArray) return 0; /* invalid parameters */
2344 0 : if (!n || !pTable) return 0; /* the font does not contain the requested metrics */
2345 :
2346 0 : TTSimpleGlyphMetrics* res = (TTSimpleGlyphMetrics*)calloc(nGlyphs, sizeof(TTSimpleGlyphMetrics));
2347 : assert(res != 0);
2348 :
2349 0 : const int UPEm = ttf->unitsPerEm;
2350 0 : for( int i = 0; i < nGlyphs; ++i) {
2351 : int nAdvOffset, nLsbOffset;
2352 0 : sal_uInt16 glyphID = glyphArray[i];
2353 :
2354 0 : if (glyphID < n) {
2355 0 : nAdvOffset = 4 * glyphID;
2356 0 : nLsbOffset = nAdvOffset + 2;
2357 : } else {
2358 0 : nAdvOffset = 4 * (n - 1);
2359 0 : if( glyphID < ttf->nglyphs )
2360 0 : nLsbOffset = 4 * n + 2 * (glyphID - n);
2361 : else /* font is broken -> use lsb of last hmetrics */
2362 0 : nLsbOffset = nAdvOffset + 2;
2363 : }
2364 :
2365 0 : if( nAdvOffset >= nTableSize)
2366 0 : res[i].adv = 0; /* better than a crash for buggy fonts */
2367 : else
2368 0 : res[i].adv = static_cast<sal_uInt16>(
2369 0 : XUnits( UPEm, GetUInt16( pTable, nAdvOffset, 1) ) );
2370 :
2371 0 : if( nLsbOffset >= nTableSize)
2372 0 : res[i].sb = 0; /* better than a crash for buggy fonts */
2373 : else
2374 0 : res[i].sb = static_cast<sal_Int16>(
2375 0 : XUnits( UPEm, GetInt16( pTable, nLsbOffset, 1) ) );
2376 : }
2377 :
2378 0 : return res;
2379 : }
2380 :
2381 : #ifndef NO_MAPPERS
2382 0 : TTSimpleGlyphMetrics *GetTTSimpleCharMetrics(TrueTypeFont * ttf, sal_uInt16 firstChar, int nChars, bool vertical)
2383 : {
2384 0 : TTSimpleGlyphMetrics *res = 0;
2385 : int i, n;
2386 :
2387 0 : sal_uInt16* str = (sal_uInt16*)malloc(nChars * 2);
2388 : assert(str != 0);
2389 :
2390 0 : for (i=0; i<nChars; i++) str[i] = (sal_uInt16)(firstChar + i);
2391 0 : if ((n = MapString(ttf, str, nChars, 0, vertical)) != -1) {
2392 0 : res = GetTTSimpleGlyphMetrics(ttf, str, n, vertical);
2393 : }
2394 :
2395 0 : free(str);
2396 :
2397 0 : return res;
2398 : }
2399 : #endif
2400 :
2401 0 : void GetTTGlobalFontInfo(TrueTypeFont *ttf, TTGlobalFontInfo *info)
2402 : {
2403 0 : int UPEm = ttf->unitsPerEm;
2404 :
2405 0 : memset(info, 0, sizeof(TTGlobalFontInfo));
2406 :
2407 0 : info->family = ttf->family;
2408 0 : info->ufamily = ttf->ufamily;
2409 0 : info->subfamily = ttf->subfamily;
2410 0 : info->usubfamily = ttf->usubfamily;
2411 0 : info->psname = ttf->psname;
2412 0 : info->symbolEncoded = (ttf->cmapType == CMAP_MS_Symbol);
2413 :
2414 0 : const sal_uInt8* table = getTable(ttf, O_OS2);
2415 0 : if (table) {
2416 0 : info->weight = GetUInt16(table, 4, 1);
2417 0 : info->width = GetUInt16(table, 6, 1);
2418 :
2419 : /* There are 3 different versions of OS/2 table: original (68 bytes long),
2420 : * Microsoft old (78 bytes long) and Microsoft new (86 bytes long,)
2421 : * Apple's documentation recommends looking at the table length.
2422 : */
2423 0 : if (getTableSize(ttf, O_OS2) > 68) {
2424 0 : info->typoAscender = XUnits(UPEm,GetInt16(table, 68, 1));
2425 0 : info->typoDescender = XUnits(UPEm, GetInt16(table, 70, 1));
2426 0 : info->typoLineGap = XUnits(UPEm, GetInt16(table, 72, 1));
2427 0 : info->winAscent = XUnits(UPEm, GetUInt16(table, 74, 1));
2428 0 : info->winDescent = XUnits(UPEm, GetUInt16(table, 76, 1));
2429 : /* sanity check; some fonts treat winDescent as signed
2430 : * violating the standard */
2431 0 : if( info->winDescent > 5*UPEm )
2432 0 : info->winDescent = XUnits(UPEm, GetInt16(table, 76,1));
2433 : }
2434 0 : if (ttf->cmapType == CMAP_MS_Unicode) {
2435 0 : info->rangeFlag = 1;
2436 0 : info->ur1 = GetUInt32(table, 42, 1);
2437 0 : info->ur2 = GetUInt32(table, 46, 1);
2438 0 : info->ur3 = GetUInt32(table, 50, 1);
2439 0 : info->ur4 = GetUInt32(table, 54, 1);
2440 : }
2441 0 : memcpy(info->panose, table + 32, 10);
2442 0 : info->typeFlags = GetUInt16( table, 8, 1 );
2443 0 : if( getTable(ttf, O_CFF) )
2444 0 : info->typeFlags |= TYPEFLAG_PS_OPENTYPE;
2445 : }
2446 :
2447 0 : table = getTable(ttf, O_post);
2448 0 : if (table && getTableSize(ttf, O_post) >= 12+sizeof(sal_uInt32)) {
2449 0 : info->pitch = GetUInt32(table, 12, 1);
2450 0 : info->italicAngle = GetInt32(table, 4, 1);
2451 : }
2452 :
2453 0 : table = getTable(ttf, O_head); /* 'head' tables is always there */
2454 0 : info->xMin = XUnits(UPEm, GetInt16(table, 36, 1));
2455 0 : info->yMin = XUnits(UPEm, GetInt16(table, 38, 1));
2456 0 : info->xMax = XUnits(UPEm, GetInt16(table, 40, 1));
2457 0 : info->yMax = XUnits(UPEm, GetInt16(table, 42, 1));
2458 0 : info->macStyle = GetInt16(table, 44, 1);
2459 :
2460 0 : table = getTable(ttf, O_hhea);
2461 0 : if (table) {
2462 0 : info->ascender = XUnits(UPEm, GetInt16(table, 4, 1));
2463 0 : info->descender = XUnits(UPEm, GetInt16(table, 6, 1));
2464 0 : info->linegap = XUnits(UPEm, GetInt16(table, 8, 1));
2465 : }
2466 :
2467 0 : table = getTable(ttf, O_vhea);
2468 0 : if (table) {
2469 0 : info->vascent = XUnits(UPEm, GetInt16(table, 4, 1));
2470 0 : info->vdescent = XUnits(UPEm, GetInt16(table, 6, 1));
2471 : }
2472 0 : }
2473 :
2474 0 : GlyphData *GetTTRawGlyphData(TrueTypeFont *ttf, sal_uInt32 glyphID)
2475 : {
2476 0 : const sal_uInt8* glyf = getTable(ttf, O_glyf);
2477 0 : const sal_uInt8* hmtx = getTable(ttf, O_hmtx);
2478 : int n;
2479 :
2480 0 : if( glyphID >= ttf->nglyphs )
2481 0 : return 0;
2482 :
2483 : /* #127161# check the glyph offsets */
2484 0 : sal_uInt32 length = getTableSize( ttf, O_glyf );
2485 0 : if( length < ttf->goffsets[ glyphID+1 ] )
2486 0 : return 0;
2487 :
2488 0 : length = ttf->goffsets[glyphID+1] - ttf->goffsets[glyphID];
2489 :
2490 0 : GlyphData* d = (GlyphData*)malloc(sizeof(GlyphData)); assert(d != 0);
2491 :
2492 0 : if (length > 0) {
2493 0 : const sal_uInt8* srcptr = glyf + ttf->goffsets[glyphID];
2494 0 : d->ptr = (sal_uInt8*)malloc((length + 1) & ~1); assert(d->ptr != 0);
2495 0 : memcpy( d->ptr, srcptr, length );
2496 0 : d->compflag = (GetInt16( srcptr, 0, 1 ) < 0);
2497 : } else {
2498 0 : d->ptr = 0;
2499 0 : d->compflag = false;
2500 : }
2501 :
2502 0 : d->glyphID = glyphID;
2503 0 : d->nbytes = (sal_uInt16)((length + 1) & ~1);
2504 :
2505 : /* now calculate npoints and ncontours */
2506 : ControlPoint *cp;
2507 0 : n = GetTTGlyphPoints(ttf, glyphID, &cp);
2508 0 : if (n > 0)
2509 : {
2510 0 : int m = 0;
2511 0 : for (int i = 0; i < n; i++)
2512 : {
2513 0 : if (cp[i].flags & 0x8000)
2514 0 : m++;
2515 : }
2516 0 : d->npoints = (sal_uInt16)n;
2517 0 : d->ncontours = (sal_uInt16)m;
2518 0 : free(cp);
2519 : } else {
2520 0 : d->npoints = 0;
2521 0 : d->ncontours = 0;
2522 : }
2523 :
2524 : /* get advance width and left sidebearing */
2525 0 : if (glyphID < ttf->numberOfHMetrics) {
2526 0 : d->aw = GetUInt16(hmtx, 4 * glyphID, 1);
2527 0 : d->lsb = GetInt16(hmtx, 4 * glyphID + 2, 1);
2528 : } else {
2529 0 : d->aw = GetUInt16(hmtx, 4 * (ttf->numberOfHMetrics - 1), 1);
2530 0 : d->lsb = GetInt16(hmtx + ttf->numberOfHMetrics * 4, (glyphID - ttf->numberOfHMetrics) * 2, 1);
2531 : }
2532 :
2533 0 : return d;
2534 : }
2535 :
2536 0 : int GetTTNameRecords(TrueTypeFont *ttf, NameRecord **nr)
2537 : {
2538 0 : const sal_uInt8* table = getTable(ttf, O_name);
2539 0 : int nTableSize = getTableSize(ttf, O_name );
2540 :
2541 0 : if (nTableSize < 6)
2542 : {
2543 : #if OSL_DEBUG_LEVEL > 1
2544 : fprintf(stderr, "O_name table too small\n");
2545 : #endif
2546 0 : return 0;
2547 : }
2548 :
2549 0 : sal_uInt16 n = GetUInt16(table, 2, 1);
2550 0 : int nStrBase = GetUInt16(table, 4, 1);
2551 : int i;
2552 :
2553 0 : *nr = 0;
2554 0 : if (n == 0) return 0;
2555 :
2556 0 : NameRecord* rec = (NameRecord*)calloc(n, sizeof(NameRecord));
2557 :
2558 0 : for (i = 0; i < n; i++) {
2559 0 : int nStrOffset = GetUInt16(table + 6, 10 + 12 * i, 1);
2560 0 : rec[i].platformID = GetUInt16(table + 6, 12 * i, 1);
2561 0 : rec[i].encodingID = GetUInt16(table + 6, 2 + 12 * i, 1);
2562 0 : rec[i].languageID = GetUInt16(table + 6, 4 + 12 * i, 1);
2563 0 : rec[i].nameID = GetUInt16(table + 6, 6 + 12 * i, 1);
2564 0 : rec[i].slen = GetUInt16(table + 6, 8 + 12 * i, 1);
2565 0 : if (rec[i].slen) {
2566 0 : if( nStrBase+nStrOffset+rec[i].slen >= nTableSize ) {
2567 0 : rec[i].sptr = 0;
2568 0 : rec[i].slen = 0;
2569 0 : continue;
2570 : }
2571 :
2572 0 : const sal_uInt8* rec_string = table + nStrBase + nStrOffset;
2573 : // sanity check
2574 0 : if( rec_string > (sal_uInt8*)ttf->ptr && rec_string < ((sal_uInt8*)ttf->ptr + ttf->fsize - rec[i].slen ) )
2575 : {
2576 0 : rec[i].sptr = (sal_uInt8 *) malloc(rec[i].slen); assert(rec[i].sptr != 0);
2577 0 : memcpy(rec[i].sptr, rec_string, rec[i].slen);
2578 : }
2579 : else
2580 : {
2581 0 : rec[i].sptr = 0;
2582 0 : rec[i].slen = 0;
2583 : }
2584 : } else {
2585 0 : rec[i].sptr = 0;
2586 : }
2587 : // some fonts have 3.0 names => fix them to 3.1
2588 0 : if( (rec[i].platformID == 3) && (rec[i].encodingID == 0) )
2589 0 : rec[i].encodingID = 1;
2590 : }
2591 :
2592 0 : *nr = rec;
2593 0 : return n;
2594 : }
2595 :
2596 0 : void DisposeNameRecords(NameRecord* nr, int n)
2597 : {
2598 : int i;
2599 0 : for (i = 0; i < n; i++) {
2600 0 : if (nr[i].sptr) free(nr[i].sptr);
2601 : }
2602 0 : free(nr);
2603 0 : }
2604 :
2605 0 : bool getTTCoverage(
2606 : boost::dynamic_bitset<sal_uInt32> &rUnicodeRange,
2607 : boost::dynamic_bitset<sal_uInt32> &rCodePageRange,
2608 : const unsigned char* pTable, size_t nLength)
2609 : {
2610 0 : bool bRet = false;
2611 0 : sal_uInt16 nVersion = GetUInt16(pTable, 0, 1);
2612 : // parse OS/2 header
2613 0 : if ( nVersion >= 0x0001 && nLength >= 58 )
2614 : {
2615 0 : rUnicodeRange.append(GetUInt32(pTable, 42, 1));
2616 0 : rUnicodeRange.append(GetUInt32(pTable, 46, 1));
2617 0 : rUnicodeRange.append(GetUInt32(pTable, 50, 1));
2618 0 : rUnicodeRange.append(GetUInt32(pTable, 54, 1));
2619 0 : bRet = true;
2620 0 : if (nLength >= 86)
2621 : {
2622 0 : rCodePageRange.append(GetUInt32(pTable, 78, 1));
2623 0 : rCodePageRange.append(GetUInt32(pTable, 82, 1));
2624 : }
2625 : }
2626 0 : return bRet;
2627 : }
2628 :
2629 0 : void getTTScripts(std::vector< sal_uInt32 > &rScriptTags, const unsigned char* pTable, size_t nLength)
2630 : {
2631 0 : if (nLength < 6)
2632 0 : return;
2633 :
2634 : // parse GSUB/GPOS header
2635 0 : const sal_uInt16 nOfsScriptList = GetUInt16(pTable, 4, 1);
2636 :
2637 : // parse Script Table
2638 0 : const sal_uInt16 nCntScript = GetUInt16(pTable, nOfsScriptList, 1);
2639 0 : sal_uInt32 nCurrentPos = nOfsScriptList+2;
2640 0 : for( sal_uInt16 nScriptIndex = 0;
2641 0 : nScriptIndex < nCntScript && nLength >= 6; ++nScriptIndex,
2642 : nLength-=6 )
2643 : {
2644 0 : sal_uInt32 nTag = GetUInt32(pTable, nCurrentPos, 1);
2645 0 : nCurrentPos+=6;
2646 0 : rScriptTags.push_back(nTag); // e.g. hani/arab/kana/hang
2647 : }
2648 :
2649 0 : std::sort(rScriptTags.begin(), rScriptTags.end());
2650 0 : rScriptTags.erase(std::unique(rScriptTags.begin(), rScriptTags.end()), rScriptTags.end());
2651 : }
2652 :
2653 : } // namespace vcl
2654 :
2655 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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