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push e263afdf8dbf9f9408e8594e045d25c4af1d55cd
[wine/hacks.git] / programs / winhlp32 / hlpfile.c
blob2e3db2c8e316ca6c2a8a60ce8e4ec02b82df8cf3
1 /*
2 * Help Viewer
3 *
4 * Copyright 1996 Ulrich Schmid
5 * 2002, 2008 Eric Pouech
6 * 2007 Kirill K. Smirnov
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 */
22
23 #include <stdarg.h>
24 #include <stdio.h>
25 #include <string.h>
26
27 #include "windef.h"
28 #include "winbase.h"
29 #include "wingdi.h"
30 #include "winuser.h"
31 #include "winhelp.h"
32
33 #include "wine/debug.h"
34
35 WINE_DEFAULT_DEBUG_CHANNEL(winhelp);
36
37 static inline unsigned short GET_USHORT(const BYTE* buffer, unsigned i)
38 {
39 return (BYTE)buffer[i] + 0x100 * (BYTE)buffer[i + 1];
40 }
41
42 static inline short GET_SHORT(const BYTE* buffer, unsigned i)
43 {
44 return (BYTE)buffer[i] + 0x100 * (signed char)buffer[i+1];
45 }
46
47 static inline unsigned GET_UINT(const BYTE* buffer, unsigned i)
48 {
49 return GET_USHORT(buffer, i) + 0x10000 * GET_USHORT(buffer, i + 2);
50 }
51
52 static HLPFILE *first_hlpfile = 0;
53
54 static BOOL HLPFILE_DoReadHlpFile(HLPFILE*, LPCSTR);
55 static BOOL HLPFILE_ReadFileToBuffer(HLPFILE*, HFILE);
56 static BOOL HLPFILE_FindSubFile(HLPFILE*, LPCSTR, BYTE**, BYTE**);
57 static BOOL HLPFILE_SystemCommands(HLPFILE*);
58 static INT HLPFILE_UncompressedLZ77_Size(const BYTE *ptr, const BYTE *end);
59 static BYTE* HLPFILE_UncompressLZ77(const BYTE *ptr, const BYTE *end, BYTE *newptr);
60 static BOOL HLPFILE_UncompressLZ77_Phrases(HLPFILE*);
61 static BOOL HLPFILE_Uncompress_Phrases40(HLPFILE*);
62 static BOOL HLPFILE_Uncompress_Topic(HLPFILE*);
63 static BOOL HLPFILE_GetContext(HLPFILE*);
64 static BOOL HLPFILE_GetKeywords(HLPFILE*);
65 static BOOL HLPFILE_GetMap(HLPFILE*);
66 static BOOL HLPFILE_AddPage(HLPFILE*, const BYTE*, const BYTE*, unsigned, unsigned);
67 static BOOL HLPFILE_SkipParagraph(HLPFILE*, const BYTE*, const BYTE*, unsigned*);
68 static void HLPFILE_Uncompress2(HLPFILE*, const BYTE*, const BYTE*, BYTE*, const BYTE*);
69 static BOOL HLPFILE_Uncompress3(HLPFILE*, char*, const char*, const BYTE*, const BYTE*);
70 static void HLPFILE_UncompressRLE(const BYTE* src, const BYTE* end, BYTE* dst, unsigned dstsz);
71 static BOOL HLPFILE_ReadFont(HLPFILE* hlpfile);
72
73 /***********************************************************************
74 *
75 * HLPFILE_PageByNumber
76 */
77 static HLPFILE_PAGE *HLPFILE_PageByNumber(HLPFILE* hlpfile, UINT wNum)
78 {
79 HLPFILE_PAGE *page;
80 UINT temp = wNum;
81
82 WINE_TRACE("<%s>[%u]\n", hlpfile->lpszPath, wNum);
83
84 for (page = hlpfile->first_page; page && temp; page = page->next) temp--;
85 if (!page)
86 WINE_ERR("Page of number %u not found in file %s\n", wNum, hlpfile->lpszPath);
87 return page;
88 }
89
90 /******************************************************************
91 * HLPFILE_PageByOffset
92 *
93 *
94 */
95 HLPFILE_PAGE *HLPFILE_PageByOffset(HLPFILE* hlpfile, LONG offset, ULONG* relative)
96 {
97 HLPFILE_PAGE* page;
98 HLPFILE_PAGE* found;
99
100 if (!hlpfile) return 0;
101
102 WINE_TRACE("<%s>[%x]\n", hlpfile->lpszPath, offset);
103
104 if (offset == 0xFFFFFFFF) return NULL;
105 page = NULL;
106
107 for (found = NULL, page = hlpfile->first_page; page; page = page->next)
108 {
109 if (page->offset <= offset && (!found || found->offset < page->offset))
110 {
111 *relative = offset - page->offset;
112 found = page;
113 }
114 }
115 if (!found)
116 WINE_ERR("Page of offset %u not found in file %s\n",
117 offset, hlpfile->lpszPath);
118 return found;
119 }
120
121 /**************************************************************************
122 * comp_PageByHash
123 *
124 * HLPFILE_BPTreeCompare function for '|CONTEXT' B+ tree file
125 *
126 */
127 static int comp_PageByHash(void *p, const void *key,
128 int leaf, void** next)
129 {
130 LONG lKey = (LONG_PTR)key;
131 LONG lTest = (INT)GET_UINT(p, 0);
132
133 *next = (char *)p+(leaf?8:6);
134 WINE_TRACE("Comparing '%d' with '%d'\n", lKey, lTest);
135 if (lTest < lKey) return -1;
136 if (lTest > lKey) return 1;
137 return 0;
138 }
139
140 /***********************************************************************
141 *
142 * HLPFILE_PageByHash
143 */
144 HLPFILE_PAGE *HLPFILE_PageByHash(HLPFILE* hlpfile, LONG lHash, ULONG* relative)
145 {
146 BYTE *ptr;
147
148 if (!hlpfile) return NULL;
149 if (!lHash) return HLPFILE_Contents(hlpfile, relative);
150
151 WINE_TRACE("<%s>[%x]\n", hlpfile->lpszPath, lHash);
152
153 /* For win 3.0 files hash values are really page numbers */
154 if (hlpfile->version <= 16)
155 {
156 *relative = 0;
157 return HLPFILE_PageByNumber(hlpfile, lHash);
158 }
159
160 ptr = HLPFILE_BPTreeSearch(hlpfile->Context, LongToPtr(lHash), comp_PageByHash);
161 if (!ptr)
162 {
163 WINE_ERR("Page of hash %x not found in file %s\n", lHash, hlpfile->lpszPath);
164 return NULL;
165 }
166
167 return HLPFILE_PageByOffset(hlpfile, GET_UINT(ptr, 4), relative);
168 }
169
170 /***********************************************************************
171 *
172 * HLPFILE_PageByMap
173 */
174 HLPFILE_PAGE *HLPFILE_PageByMap(HLPFILE* hlpfile, LONG lMap, ULONG* relative)
175 {
176 unsigned int i;
177
178 if (!hlpfile) return 0;
179
180 WINE_TRACE("<%s>[%x]\n", hlpfile->lpszPath, lMap);
181
182 for (i = 0; i < hlpfile->wMapLen; i++)
183 {
184 if (hlpfile->Map[i].lMap == lMap)
185 return HLPFILE_PageByOffset(hlpfile, hlpfile->Map[i].offset, relative);
186 }
187
188 WINE_ERR("Page of Map %x not found in file %s\n", lMap, hlpfile->lpszPath);
189 return NULL;
190 }
191
192 /***********************************************************************
193 *
194 * HLPFILE_Contents
195 */
196 HLPFILE_PAGE* HLPFILE_Contents(HLPFILE *hlpfile, ULONG* relative)
197 {
198 HLPFILE_PAGE* page = NULL;
199
200 if (!hlpfile) return NULL;
201
202 page = HLPFILE_PageByOffset(hlpfile, hlpfile->contents_start, relative);
203 if (!page)
204 {
205 page = hlpfile->first_page;
206 *relative = 0;
207 }
208 return page;
209 }
210
211 /***********************************************************************
212 *
213 * HLPFILE_Hash
214 */
215 LONG HLPFILE_Hash(LPCSTR lpszContext)
216 {
217 LONG lHash = 0;
218 CHAR c;
219
220 while ((c = *lpszContext++))
221 {
222 CHAR x = 0;
223 if (c >= 'A' && c <= 'Z') x = c - 'A' + 17;
224 if (c >= 'a' && c <= 'z') x = c - 'a' + 17;
225 if (c >= '1' && c <= '9') x = c - '0';
226 if (c == '0') x = 10;
227 if (c == '.') x = 12;
228 if (c == '_') x = 13;
229 if (x) lHash = lHash * 43 + x;
230 }
231 return lHash;
232 }
233
234 /***********************************************************************
235 *
236 * HLPFILE_ReadHlpFile
237 */
238 HLPFILE *HLPFILE_ReadHlpFile(LPCSTR lpszPath)
239 {
240 HLPFILE* hlpfile;
241
242 for (hlpfile = first_hlpfile; hlpfile; hlpfile = hlpfile->next)
243 {
244 if (!strcmp(lpszPath, hlpfile->lpszPath))
245 {
246 hlpfile->wRefCount++;
247 return hlpfile;
248 }
249 }
250
251 hlpfile = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
252 sizeof(HLPFILE) + lstrlen(lpszPath) + 1);
253 if (!hlpfile) return 0;
254
255 hlpfile->lpszPath = (char*)hlpfile + sizeof(HLPFILE);
256 hlpfile->contents_start = 0xFFFFFFFF;
257 hlpfile->next = first_hlpfile;
258 hlpfile->wRefCount = 1;
259
260 strcpy(hlpfile->lpszPath, lpszPath);
261
262 first_hlpfile = hlpfile;
263 if (hlpfile->next) hlpfile->next->prev = hlpfile;
264
265 if (!HLPFILE_DoReadHlpFile(hlpfile, lpszPath))
266 {
267 HLPFILE_FreeHlpFile(hlpfile);
268 hlpfile = 0;
269 }
270
271 return hlpfile;
272 }
273
274 /***********************************************************************
275 *
276 * HLPFILE_DoReadHlpFile
277 */
278 static BOOL HLPFILE_DoReadHlpFile(HLPFILE *hlpfile, LPCSTR lpszPath)
279 {
280 BOOL ret;
281 HFILE hFile;
282 OFSTRUCT ofs;
283 BYTE* buf;
284 DWORD ref = 0x0C;
285 unsigned index, old_index, offset, len, offs;
286
287 hFile = OpenFile(lpszPath, &ofs, OF_READ);
288 if (hFile == HFILE_ERROR) return FALSE;
289
290 ret = HLPFILE_ReadFileToBuffer(hlpfile, hFile);
291 _lclose(hFile);
292 if (!ret) return FALSE;
293
294 if (!HLPFILE_SystemCommands(hlpfile)) return FALSE;
295
296 /* load phrases support */
297 if (!HLPFILE_UncompressLZ77_Phrases(hlpfile))
298 HLPFILE_Uncompress_Phrases40(hlpfile);
299
300 if (!HLPFILE_Uncompress_Topic(hlpfile)) return FALSE;
301 if (!HLPFILE_ReadFont(hlpfile)) return FALSE;
302
303 buf = hlpfile->topic_map[0];
304 old_index = -1;
305 offs = 0;
306 do
307 {
308 BYTE* end;
309
310 if (hlpfile->version <= 16)
311 {
312 index = (ref - 0x0C) / hlpfile->dsize;
313 offset = (ref - 0x0C) % hlpfile->dsize;
314 }
315 else
316 {
317 index = (ref - 0x0C) >> 14;
318 offset = (ref - 0x0C) & 0x3FFF;
319 }
320
321 if (hlpfile->version <= 16 && index != old_index && old_index != -1)
322 {
323 /* we jumped to the next block, adjust pointers */
324 ref -= 12;
325 offset -= 12;
326 }
327
328 WINE_TRACE("ref=%08x => [%u/%u]\n", ref, index, offset);
329
330 if (index >= hlpfile->topic_maplen) {WINE_WARN("maplen\n"); break;}
331 buf = hlpfile->topic_map[index] + offset;
332 if (buf + 0x15 >= hlpfile->topic_end) {WINE_WARN("extra\n"); break;}
333 end = min(buf + GET_UINT(buf, 0), hlpfile->topic_end);
334 if (index != old_index) {offs = 0; old_index = index;}
335
336 switch (buf[0x14])
337 {
338 case 0x02:
339 if (!HLPFILE_AddPage(hlpfile, buf, end, ref, index * 0x8000L + offs)) return FALSE;
340 break;
341
342 case 0x01:
343 case 0x20:
344 case 0x23:
345 if (!HLPFILE_SkipParagraph(hlpfile, buf, end, &len)) return FALSE;
346 offs += len;
347 break;
348
349 default:
350 WINE_ERR("buf[0x14] = %x\n", buf[0x14]);
351 }
352
353 if (hlpfile->version <= 16)
354 {
355 ref += GET_UINT(buf, 0xc);
356 if (GET_UINT(buf, 0xc) == 0)
357 break;
358 }
359 else
360 ref = GET_UINT(buf, 0xc);
361 } while (ref != 0xffffffff);
362
363 HLPFILE_GetKeywords(hlpfile);
364 HLPFILE_GetMap(hlpfile);
365 if (hlpfile->version <= 16) return TRUE;
366 return HLPFILE_GetContext(hlpfile);
367 }
368
369 /***********************************************************************
370 *
371 * HLPFILE_AddPage
372 */
373 static BOOL HLPFILE_AddPage(HLPFILE *hlpfile, const BYTE *buf, const BYTE *end, unsigned ref, unsigned offset)
374 {
375 HLPFILE_PAGE* page;
376 const BYTE* title;
377 UINT titlesize, blocksize, datalen;
378 char* ptr;
379 HLPFILE_MACRO*macro;
380
381 blocksize = GET_UINT(buf, 0);
382 datalen = GET_UINT(buf, 0x10);
383 title = buf + datalen;
384 if (title > end) {WINE_WARN("page2\n"); return FALSE;};
385
386 titlesize = GET_UINT(buf, 4);
387 page = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_PAGE) + titlesize + 1);
388 if (!page) return FALSE;
389 page->lpszTitle = (char*)page + sizeof(HLPFILE_PAGE);
390
391 if (titlesize > blocksize - datalen)
392 {
393 /* need to decompress */
394 if (hlpfile->hasPhrases)
395 HLPFILE_Uncompress2(hlpfile, title, end, (BYTE*)page->lpszTitle, (BYTE*)page->lpszTitle + titlesize);
396 else if (hlpfile->hasPhrases40)
397 HLPFILE_Uncompress3(hlpfile, page->lpszTitle, page->lpszTitle + titlesize, title, end);
398 else
399 {
400 WINE_FIXME("Text size is too long, splitting\n");
401 titlesize = blocksize - datalen;
402 memcpy(page->lpszTitle, title, titlesize);
403 }
404 }
405 else
406 memcpy(page->lpszTitle, title, titlesize);
407
408 page->lpszTitle[titlesize] = '\0';
409
410 if (hlpfile->first_page)
411 {
412 hlpfile->last_page->next = page;
413 page->prev = hlpfile->last_page;
414 hlpfile->last_page = page;
415 }
416 else
417 {
418 hlpfile->first_page = page;
419 hlpfile->last_page = page;
420 page->prev = NULL;
421 }
422
423 page->file = hlpfile;
424 page->next = NULL;
425 page->first_macro = NULL;
426 page->first_link = NULL;
427 page->wNumber = GET_UINT(buf, 0x21);
428 page->offset = offset;
429 page->reference = ref;
430
431 page->browse_bwd = GET_UINT(buf, 0x19);
432 page->browse_fwd = GET_UINT(buf, 0x1D);
433
434 WINE_TRACE("Added page[%d]: title='%s' %08x << %08x >> %08x\n",
435 page->wNumber, page->lpszTitle,
436 page->browse_bwd, page->offset, page->browse_fwd);
437
438 /* now load macros */
439 ptr = page->lpszTitle + strlen(page->lpszTitle) + 1;
440 while (ptr < page->lpszTitle + titlesize)
441 {
442 unsigned len = strlen(ptr);
443 char* macro_str;
444
445 WINE_TRACE("macro: %s\n", ptr);
446 macro = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_MACRO) + len + 1);
447 macro->lpszMacro = macro_str = (char*)(macro + 1);
448 memcpy(macro_str, ptr, len + 1);
449 /* FIXME: shall we really link macro in reverse order ??
450 * may produce strange results when played at page opening
451 */
452 macro->next = page->first_macro;
453 page->first_macro = macro;
454 ptr += len + 1;
455 }
456
457 return TRUE;
458 }
459
460 static long fetch_long(const BYTE** ptr)
461 {
462 long ret;
463
464 if (*(*ptr) & 1)
465 {
466 ret = (*(const unsigned long*)(*ptr) - 0x80000000L) / 2;
467 (*ptr) += 4;
468 }
469 else
470 {
471 ret = (*(const unsigned short*)(*ptr) - 0x8000) / 2;
472 (*ptr) += 2;
473 }
474
475 return ret;
476 }
477
478 static unsigned long fetch_ulong(const BYTE** ptr)
479 {
480 unsigned long ret;
481
482 if (*(*ptr) & 1)
483 {
484 ret = *(const unsigned long*)(*ptr) / 2;
485 (*ptr) += 4;
486 }
487 else
488 {
489 ret = *(const unsigned short*)(*ptr) / 2;
490 (*ptr) += 2;
491 }
492 return ret;
493 }
494
495 static short fetch_short(const BYTE** ptr)
496 {
497 short ret;
498
499 if (*(*ptr) & 1)
500 {
501 ret = (*(const unsigned short*)(*ptr) - 0x8000) / 2;
502 (*ptr) += 2;
503 }
504 else
505 {
506 ret = (*(const unsigned char*)(*ptr) - 0x80) / 2;
507 (*ptr)++;
508 }
509 return ret;
510 }
511
512 static unsigned short fetch_ushort(const BYTE** ptr)
513 {
514 unsigned short ret;
515
516 if (*(*ptr) & 1)
517 {
518 ret = *(const unsigned short*)(*ptr) / 2;
519 (*ptr) += 2;
520 }
521 else
522 {
523 ret = *(const unsigned char*)(*ptr) / 2;
524 (*ptr)++;
525 }
526 return ret;
527 }
528
529 /***********************************************************************
530 *
531 * HLPFILE_SkipParagraph
532 */
533 static BOOL HLPFILE_SkipParagraph(HLPFILE *hlpfile, const BYTE *buf, const BYTE *end, unsigned* len)
534 {
535 const BYTE *tmp;
536
537 if (!hlpfile->first_page) {WINE_WARN("no page\n"); return FALSE;};
538 if (buf + 0x19 > end) {WINE_WARN("header too small\n"); return FALSE;};
539
540 tmp = buf + 0x15;
541 if (buf[0x14] == 0x20 || buf[0x14] == 0x23)
542 {
543 fetch_long(&tmp);
544 *len = fetch_ushort(&tmp);
545 }
546 else *len = end-buf-15;
547
548 return TRUE;
549 }
550
551 /******************************************************************
552 * HLPFILE_DecompressGfx
553 *
554 * Decompress the data part of a bitmap or a metafile
555 */
556 static const BYTE* HLPFILE_DecompressGfx(const BYTE* src, unsigned csz, unsigned sz, BYTE packing,
557 BYTE** alloc)
558 {
559 const BYTE* dst;
560 BYTE* tmp;
561 unsigned sz77;
562
563 WINE_TRACE("Unpacking (%d) from %u bytes to %u bytes\n", packing, csz, sz);
564
565 switch (packing)
566 {
567 case 0: /* uncompressed */
568 if (sz != csz)
569 WINE_WARN("Bogus gfx sizes (uncompressed): %u / %u\n", sz, csz);
570 dst = src;
571 *alloc = NULL;
572 break;
573 case 1: /* RunLen */
574 dst = *alloc = HeapAlloc(GetProcessHeap(), 0, sz);
575 if (!dst) return NULL;
576 HLPFILE_UncompressRLE(src, src + csz, *alloc, sz);
577 break;
578 case 2: /* LZ77 */
579 sz77 = HLPFILE_UncompressedLZ77_Size(src, src + csz);
580 dst = *alloc = HeapAlloc(GetProcessHeap(), 0, sz77);
581 if (!dst) return NULL;
582 HLPFILE_UncompressLZ77(src, src + csz, *alloc);
583 if (sz77 != sz)
584 WINE_WARN("Bogus gfx sizes (LZ77): %u / %u\n", sz77, sz);
585 break;
586 case 3: /* LZ77 then RLE */
587 sz77 = HLPFILE_UncompressedLZ77_Size(src, src + csz);
588 tmp = HeapAlloc(GetProcessHeap(), 0, sz77);
589 if (!tmp) return FALSE;
590 HLPFILE_UncompressLZ77(src, src + csz, tmp);
591 dst = *alloc = HeapAlloc(GetProcessHeap(), 0, sz);
592 if (!dst)
593 {
594 HeapFree(GetProcessHeap(), 0, tmp);
595 return FALSE;
596 }
597 HLPFILE_UncompressRLE(tmp, tmp + sz77, *alloc, sz);
598 HeapFree(GetProcessHeap(), 0, tmp);
599 break;
600 default:
601 WINE_FIXME("Unsupported packing %u\n", packing);
602 return NULL;
603 }
604 return dst;
605 }
606
607 static BOOL HLPFILE_RtfAddRawString(struct RtfData* rd, const char* str, size_t sz)
608 {
609 if (rd->ptr + sz >= rd->data + rd->allocated)
610 {
611 char* new = HeapReAlloc(GetProcessHeap(), 0, rd->data, rd->allocated *= 2);
612 if (!new) return FALSE;
613 rd->ptr = new + (rd->ptr - rd->data);
614 rd->data = new;
615 }
616 memcpy(rd->ptr, str, sz);
617 rd->ptr += sz;
618
619 return TRUE;
620 }
621
622 static BOOL HLPFILE_RtfAddControl(struct RtfData* rd, const char* str)
623 {
624 if (*str == '\\' || *str == '{') rd->in_text = FALSE;
625 else if (*str == '}') rd->in_text = TRUE;
626 return HLPFILE_RtfAddRawString(rd, str, strlen(str));
627 }
628
629 static BOOL HLPFILE_RtfAddText(struct RtfData* rd, const char* str)
630 {
631 const char* p;
632 const char* last;
633 const char* replace;
634 unsigned rlen;
635
636 if (!rd->in_text)
637 {
638 if (!HLPFILE_RtfAddRawString(rd, " ", 1)) return FALSE;
639 rd->in_text = TRUE;
640 }
641 for (last = p = str; *p; p++)
642 {
643 if (*p < 0) /* escape non ASCII chars */
644 {
645 static char xx[8];
646 rlen = sprintf(xx, "\\'%x", *(const BYTE*)p);
647 replace = xx;
648 }
649 else switch (*p)
650 {
651 case '{': rlen = 2; replace = "\\{"; break;
652 case '}': rlen = 2; replace = "\\}"; break;
653 case '\\': rlen = 2; replace = "\\\\"; break;
654 default: continue;
655 }
656 if ((p != last && !HLPFILE_RtfAddRawString(rd, last, p - last)) ||
657 !HLPFILE_RtfAddRawString(rd, replace, rlen)) return FALSE;
658 last = p + 1;
659 }
660 return HLPFILE_RtfAddRawString(rd, last, p - last);
661 }
662
663 /******************************************************************
664 * RtfAddHexBytes
665 *
666 */
667 static BOOL HLPFILE_RtfAddHexBytes(struct RtfData* rd, const void* _ptr, unsigned sz)
668 {
669 char tmp[512];
670 unsigned i, step;
671 const BYTE* ptr = _ptr;
672 static const char* _2hex = "0123456789abcdef";
673
674 if (!rd->in_text)
675 {
676 if (!HLPFILE_RtfAddRawString(rd, " ", 1)) return FALSE;
677 rd->in_text = TRUE;
678 }
679 for (; sz; sz -= step)
680 {
681 step = min(256, sz);
682 for (i = 0; i < step; i++)
683 {
684 tmp[2 * i + 0] = _2hex[*ptr >> 4];
685 tmp[2 * i + 1] = _2hex[*ptr++ & 0xF];
686 }
687 if (!HLPFILE_RtfAddRawString(rd, tmp, 2 * step)) return FALSE;
688 }
689 return TRUE;
690 }
691
692 /******************************************************************
693 * HLPFILE_RtfAddTransparentBitmap
694 *
695 * We'll transform a transparent bitmap into an metafile that
696 * we then transform into RTF
697 */
698 static BOOL HLPFILE_RtfAddTransparentBitmap(struct RtfData* rd, const BITMAPINFO* bi,
699 const void* pict, unsigned nc)
700 {
701 HDC hdc, hdcMask, hdcMem, hdcEMF;
702 HBITMAP hbm, hbmMask, hbmOldMask, hbmOldMem;
703 HENHMETAFILE hEMF;
704 BOOL ret = FALSE;
705 void* data;
706 UINT sz;
707
708 hbm = CreateDIBitmap(hdc = GetDC(0), &bi->bmiHeader,
709 CBM_INIT, pict, bi, DIB_RGB_COLORS);
710
711 hdcMem = CreateCompatibleDC(hdc);
712 hbmOldMem = SelectObject(hdcMem, hbm);
713
714 /* create the mask bitmap from the main bitmap */
715 hdcMask = CreateCompatibleDC(hdc);
716 hbmMask = CreateBitmap(bi->bmiHeader.biWidth, bi->bmiHeader.biHeight, 1, 1, NULL);
717 hbmOldMask = SelectObject(hdcMask, hbmMask);
718 SetBkColor(hdcMem,
719 RGB(bi->bmiColors[nc - 1].rgbRed,
720 bi->bmiColors[nc - 1].rgbGreen,
721 bi->bmiColors[nc - 1].rgbBlue));
722 BitBlt(hdcMask, 0, 0, bi->bmiHeader.biWidth, bi->bmiHeader.biHeight, hdcMem, 0, 0, SRCCOPY);
723
724 /* sets to RGB(0,0,0) the transparent bits in main bitmap */
725 SetBkColor(hdcMem, RGB(0,0,0));
726 SetTextColor(hdcMem, RGB(255,255,255));
727 BitBlt(hdcMem, 0, 0, bi->bmiHeader.biWidth, bi->bmiHeader.biHeight, hdcMask, 0, 0, SRCAND);
728
729 SelectObject(hdcMask, hbmOldMask);
730 DeleteDC(hdcMask);
731
732 SelectObject(hdcMem, hbmOldMem);
733 DeleteDC(hdcMem);
734
735 /* we create the bitmap on the fly */
736 hdcEMF = CreateEnhMetaFile(NULL, NULL, NULL, NULL);
737 hdcMem = CreateCompatibleDC(hdcEMF);
738
739 /* sets to RGB(0,0,0) the transparent bits in final bitmap */
740 hbmOldMem = SelectObject(hdcMem, hbmMask);
741 SetBkColor(hdcEMF, RGB(255, 255, 255));
742 SetTextColor(hdcEMF, RGB(0, 0, 0));
743 BitBlt(hdcEMF, 0, 0, bi->bmiHeader.biWidth, bi->bmiHeader.biHeight, hdcMem, 0, 0, SRCAND);
744
745 /* and copy the remaining bits of main bitmap */
746 SelectObject(hdcMem, hbm);
747 BitBlt(hdcEMF, 0, 0, bi->bmiHeader.biWidth, bi->bmiHeader.biHeight, hdcMem, 0, 0, SRCPAINT);
748 SelectObject(hdcMem, hbmOldMem);
749 DeleteDC(hdcMem);
750
751 /* do the cleanup */
752 ReleaseDC(0, hdc);
753 DeleteObject(hbmMask);
754 DeleteObject(hbm);
755
756 hEMF = CloseEnhMetaFile(hdcEMF);
757
758 /* generate rtf stream */
759 sz = GetEnhMetaFileBits(hEMF, 0, NULL);
760 if (sz && (data = HeapAlloc(GetProcessHeap(), 0, sz)))
761 {
762 if (sz == GetEnhMetaFileBits(hEMF, sz, data))
763 {
764 ret = HLPFILE_RtfAddControl(rd, "{\\pict\\emfblip") &&
765 HLPFILE_RtfAddHexBytes(rd, data, sz) &&
766 HLPFILE_RtfAddControl(rd, "}");
767 }
768 HeapFree(GetProcessHeap(), 0, data);
769 }
770 DeleteEnhMetaFile(hEMF);
771
772 return ret;
773 }
774
775 /******************************************************************
776 * HLPFILE_RtfAddBitmap
777 *
778 */
779 static BOOL HLPFILE_RtfAddBitmap(struct RtfData* rd, const BYTE* beg, BYTE type, BYTE pack)
780 {
781 const BYTE* ptr;
782 const BYTE* pict_beg;
783 BYTE* alloc = NULL;
784 BITMAPINFO* bi;
785 unsigned long off, csz;
786 unsigned nc = 0;
787 BOOL clrImportant = FALSE;
788 BOOL ret = FALSE;
789 char tmp[256];
790
791 bi = HeapAlloc(GetProcessHeap(), 0, sizeof(*bi));
792 if (!bi) return FALSE;
793
794 ptr = beg + 2; /* for type and pack */
795
796 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
797 bi->bmiHeader.biXPelsPerMeter = fetch_ulong(&ptr);
798 bi->bmiHeader.biYPelsPerMeter = fetch_ulong(&ptr);
799 bi->bmiHeader.biPlanes = fetch_ushort(&ptr);
800 bi->bmiHeader.biBitCount = fetch_ushort(&ptr);
801 bi->bmiHeader.biWidth = fetch_ulong(&ptr);
802 bi->bmiHeader.biHeight = fetch_ulong(&ptr);
803 bi->bmiHeader.biClrUsed = fetch_ulong(&ptr);
804 clrImportant = fetch_ulong(&ptr);
805 bi->bmiHeader.biClrImportant = (clrImportant > 1) ? clrImportant : 0;
806 bi->bmiHeader.biCompression = BI_RGB;
807 if (bi->bmiHeader.biBitCount > 32) WINE_FIXME("Unknown bit count %u\n", bi->bmiHeader.biBitCount);
808 if (bi->bmiHeader.biPlanes != 1) WINE_FIXME("Unsupported planes %u\n", bi->bmiHeader.biPlanes);
809 bi->bmiHeader.biSizeImage = (((bi->bmiHeader.biWidth * bi->bmiHeader.biBitCount + 31) & ~31) / 8) * bi->bmiHeader.biHeight;
810 WINE_TRACE("planes=%d bc=%d size=(%d,%d)\n",
811 bi->bmiHeader.biPlanes, bi->bmiHeader.biBitCount,
812 bi->bmiHeader.biWidth, bi->bmiHeader.biHeight);
813
814 csz = fetch_ulong(&ptr);
815 fetch_ulong(&ptr); /* hotspot size */
816
817 off = GET_UINT(ptr, 0); ptr += 4;
818 /* GET_UINT(ptr, 0); hotspot offset */ ptr += 4;
819
820 /* now read palette info */
821 if (type == 0x06)
822 {
823 unsigned i;
824
825 nc = bi->bmiHeader.biClrUsed;
826 /* not quite right, especially for bitfields type of compression */
827 if (!nc && bi->bmiHeader.biBitCount <= 8)
828 nc = 1 << bi->bmiHeader.biBitCount;
829
830 bi = HeapReAlloc(GetProcessHeap(), 0, bi, sizeof(*bi) + nc * sizeof(RGBQUAD));
831 if (!bi) return FALSE;
832 for (i = 0; i < nc; i++)
833 {
834 bi->bmiColors[i].rgbBlue = ptr[0];
835 bi->bmiColors[i].rgbGreen = ptr[1];
836 bi->bmiColors[i].rgbRed = ptr[2];
837 bi->bmiColors[i].rgbReserved = 0;
838 ptr += 4;
839 }
840 }
841 pict_beg = HLPFILE_DecompressGfx(beg + off, csz, bi->bmiHeader.biSizeImage, pack, &alloc);
842
843 if (clrImportant == 1 && nc > 0)
844 {
845 ret = HLPFILE_RtfAddTransparentBitmap(rd, bi, pict_beg, nc);
846 goto done;
847 }
848 if (!HLPFILE_RtfAddControl(rd, "{\\pict")) goto done;
849 if (type == 0x06)
850 {
851 sprintf(tmp, "\\dibitmap0\\picw%d\\pich%d",
852 bi->bmiHeader.biWidth, bi->bmiHeader.biHeight);
853 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
854 if (!HLPFILE_RtfAddHexBytes(rd, bi, sizeof(*bi) + nc * sizeof(RGBQUAD))) goto done;
855 }
856 else
857 {
858 sprintf(tmp, "\\wbitmap0\\wbmbitspixel%d\\wbmplanes%d\\picw%d\\pich%d",
859 bi->bmiHeader.biBitCount, bi->bmiHeader.biPlanes,
860 bi->bmiHeader.biWidth, bi->bmiHeader.biHeight);
861 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
862 }
863 if (!HLPFILE_RtfAddHexBytes(rd, pict_beg, bi->bmiHeader.biSizeImage)) goto done;
864 if (!HLPFILE_RtfAddControl(rd, "}")) goto done;
865
866 ret = TRUE;
867 done:
868 HeapFree(GetProcessHeap(), 0, bi);
869 HeapFree(GetProcessHeap(), 0, alloc);
870
871 return ret;
872 }
873
874 /******************************************************************
875 * HLPFILE_RtfAddMetaFile
876 *
877 */
878 static BOOL HLPFILE_RtfAddMetaFile(struct RtfData* rd, const BYTE* beg, BYTE pack)
879 {
880 const BYTE* ptr;
881 unsigned long size, csize;
882 unsigned long off, hsoff;
883 const BYTE* bits;
884 BYTE* alloc = NULL;
885 char tmp[256];
886 unsigned mm;
887 BOOL ret;
888
889 WINE_TRACE("Loading metafile\n");
890
891 ptr = beg + 2; /* for type and pack */
892
893 mm = fetch_ushort(&ptr); /* mapping mode */
894 sprintf(tmp, "{\\pict\\wmetafile%d\\picw%d\\pich%d",
895 mm, GET_USHORT(ptr, 0), GET_USHORT(ptr, 2));
896 if (!HLPFILE_RtfAddControl(rd, tmp)) return FALSE;
897 ptr += 4;
898
899 size = fetch_ulong(&ptr); /* decompressed size */
900 csize = fetch_ulong(&ptr); /* compressed size */
901 fetch_ulong(&ptr); /* hotspot size */
902 off = GET_UINT(ptr, 0);
903 hsoff = GET_UINT(ptr, 4);
904 ptr += 8;
905
906 WINE_TRACE("sz=%lu csz=%lu offs=%lu/%u,%lu\n",
907 size, csize, off, ptr - beg, hsoff);
908
909 bits = HLPFILE_DecompressGfx(beg + off, csize, size, pack, &alloc);
910 if (!bits) return FALSE;
911
912 ret = HLPFILE_RtfAddHexBytes(rd, bits, size) &&
913 HLPFILE_RtfAddControl(rd, "}");
914
915 HeapFree(GetProcessHeap(), 0, alloc);
916
917 return ret;
918 }
919
920 /******************************************************************
921 * HLPFILE_RtfAddGfxByAddr
922 *
923 */
924 static BOOL HLPFILE_RtfAddGfxByAddr(struct RtfData* rd, HLPFILE *hlpfile,
925 const BYTE* ref, unsigned long size)
926 {
927 unsigned i, numpict;
928
929 numpict = GET_USHORT(ref, 2);
930 WINE_TRACE("Got picture magic=%04x #=%d\n", GET_USHORT(ref, 0), numpict);
931
932 for (i = 0; i < numpict; i++)
933 {
934 const BYTE* beg;
935 const BYTE* ptr;
936 BYTE type, pack;
937
938 WINE_TRACE("Offset[%d] = %x\n", i, GET_UINT(ref, (1 + i) * 4));
939 beg = ptr = ref + GET_UINT(ref, (1 + i) * 4);
940
941 type = *ptr++;
942 pack = *ptr++;
943
944 switch (type)
945 {
946 case 5: /* device dependent bmp */
947 case 6: /* device independent bmp */
948 HLPFILE_RtfAddBitmap(rd, beg, type, pack);
949 break;
950 case 8:
951 HLPFILE_RtfAddMetaFile(rd, beg, pack);
952 break;
953 default: WINE_FIXME("Unknown type %u\n", type); return FALSE;
954 }
955
956 /* FIXME: hotspots */
957
958 /* FIXME: implement support for multiple picture format */
959 if (numpict != 1) WINE_FIXME("Supporting only one bitmap format per logical bitmap (for now). Using first format\n");
960 break;
961 }
962 return TRUE;
963 }
964
965 /******************************************************************
966 * HLPFILE_RtfAddGfxByIndex
967 *
968 *
969 */
970 static BOOL HLPFILE_RtfAddGfxByIndex(struct RtfData* rd, HLPFILE *hlpfile,
971 unsigned index)
972 {
973 char tmp[16];
974 BYTE *ref, *end;
975
976 WINE_TRACE("Loading picture #%d\n", index);
977
978 sprintf(tmp, "|bm%u", index);
979
980 if (!HLPFILE_FindSubFile(hlpfile, tmp, &ref, &end)) {WINE_WARN("no sub file\n"); return FALSE;}
981
982 ref += 9;
983 return HLPFILE_RtfAddGfxByAddr(rd, hlpfile, ref, end - ref);
984 }
985
986 /******************************************************************
987 * HLPFILE_AllocLink
988 *
989 *
990 */
991 static HLPFILE_LINK* HLPFILE_AllocLink(struct RtfData* rd, int cookie,
992 const char* str, unsigned len, LONG hash,
993 unsigned clrChange, unsigned wnd)
994 {
995 HLPFILE_LINK* link;
996 char* link_str;
997
998 /* FIXME: should build a string table for the attributes.link.lpszPath
999 * they are reallocated for each link
1000 */
1001 if (len == -1) len = strlen(str);
1002 link = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_LINK) + len + 1);
1003 if (!link) return NULL;
1004
1005 link->cookie = cookie;
1006 link->string = link_str = (char*)(link + 1);
1007 memcpy(link_str, str, len);
1008 link_str[len] = '\0';
1009 link->hash = hash;
1010 link->bClrChange = clrChange ? 1 : 0;
1011 link->window = wnd;
1012 link->next = rd->first_link;
1013 rd->first_link = link;
1014 link->cpMin = rd->char_pos;
1015 link->cpMax = 0;
1016 rd->force_color = clrChange;
1017 if (rd->current_link) WINE_FIXME("Pending link\n");
1018 rd->current_link = link;
1019
1020 WINE_TRACE("Link[%d] to %s@%08x:%d\n",
1021 link->cookie, link->string, link->hash, link->window);
1022 return link;
1023 }
1024
1025 unsigned HLPFILE_HalfPointsToTwips(unsigned pts)
1026 {
1027 static unsigned logPxY;
1028 if (!logPxY)
1029 {
1030 HDC hdc = GetDC(NULL);
1031 logPxY = GetDeviceCaps(hdc, LOGPIXELSY);
1032 ReleaseDC(NULL, hdc);
1033 }
1034 return MulDiv(pts, 72 * 10, logPxY);
1035 }
1036
1037 /***********************************************************************
1038 *
1039 * HLPFILE_BrowseParagraph
1040 */
1041 static BOOL HLPFILE_BrowseParagraph(HLPFILE_PAGE* page, struct RtfData* rd,
1042 BYTE *buf, BYTE* end, unsigned* parlen)
1043 {
1044 UINT textsize;
1045 const BYTE *format, *format_end;
1046 char *text, *text_base, *text_end;
1047 long size, blocksize, datalen;
1048 unsigned short bits;
1049 unsigned nc, ncol = 1;
1050 short table_width;
1051 BOOL in_table = FALSE;
1052 char tmp[256];
1053 BOOL ret = FALSE;
1054
1055 if (buf + 0x19 > end) {WINE_WARN("header too small\n"); return FALSE;};
1056
1057 *parlen = 0;
1058 blocksize = GET_UINT(buf, 0);
1059 size = GET_UINT(buf, 0x4);
1060 datalen = GET_UINT(buf, 0x10);
1061 text = text_base = HeapAlloc(GetProcessHeap(), 0, size);
1062 if (!text) return FALSE;
1063 if (size > blocksize - datalen)
1064 {
1065 /* need to decompress */
1066 if (page->file->hasPhrases)
1067 HLPFILE_Uncompress2(page->file, buf + datalen, end, (BYTE*)text, (BYTE*)text + size);
1068 else if (page->file->hasPhrases40)
1069 HLPFILE_Uncompress3(page->file, text, text + size, buf + datalen, end);
1070 else
1071 {
1072 WINE_FIXME("Text size is too long, splitting\n");
1073 size = blocksize - datalen;
1074 memcpy(text, buf + datalen, size);
1075 }
1076 }
1077 else
1078 memcpy(text, buf + datalen, size);
1079
1080 text_end = text + size;
1081
1082 format = buf + 0x15;
1083 format_end = buf + GET_UINT(buf, 0x10);
1084
1085 if (buf[0x14] == 0x20 || buf[0x14] == 0x23)
1086 {
1087 fetch_long(&format);
1088 *parlen = fetch_ushort(&format);
1089 }
1090
1091 if (buf[0x14] == 0x23)
1092 {
1093 char type;
1094
1095 in_table = TRUE;
1096 ncol = *format++;
1097
1098 if (!HLPFILE_RtfAddControl(rd, "\\trowd")) goto done;
1099 type = *format++;
1100 if (type == 0 || type == 2)
1101 {
1102 table_width = GET_SHORT(format, 0);
1103 format += 2;
1104 }
1105 else
1106 table_width = 32767;
1107 WINE_TRACE("New table: cols=%d type=%x width=%d\n",
1108 ncol, type, table_width);
1109 if (ncol > 1)
1110 {
1111 int pos;
1112 sprintf(tmp, "\\trgaph%d\\trleft%d",
1113 HLPFILE_HalfPointsToTwips(MulDiv(GET_SHORT(format, 6), table_width, 32767)),
1114 HLPFILE_HalfPointsToTwips(MulDiv(GET_SHORT(format, 0), table_width, 32767)));
1115 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1116 pos = HLPFILE_HalfPointsToTwips(MulDiv(GET_SHORT(format, 6) / 2, table_width, 32767));
1117 for (nc = 0; nc < ncol; nc++)
1118 {
1119 WINE_TRACE("column(%d/%d) gap=%d width=%d\n",
1120 nc, ncol, GET_SHORT(format, nc*4),
1121 GET_SHORT(format, nc*4+2));
1122 pos += GET_SHORT(format, nc * 4) + GET_SHORT(format, nc * 4 + 2);
1123 sprintf(tmp, "\\cellx%d",
1124 HLPFILE_HalfPointsToTwips(MulDiv(pos, table_width, 32767)));
1125 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1126 }
1127 }
1128 else
1129 {
1130 WINE_TRACE("column(0/%d) gap=%d width=%d\n",
1131 ncol, GET_SHORT(format, 0), GET_SHORT(format, 2));
1132 sprintf(tmp, "\\trleft%d\\cellx%d ",
1133 HLPFILE_HalfPointsToTwips(MulDiv(GET_SHORT(format, 0), table_width, 32767)),
1134 HLPFILE_HalfPointsToTwips(MulDiv(GET_SHORT(format, 0) + GET_SHORT(format, 2),
1135 table_width, 32767)));
1136 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1137 }
1138 format += ncol * 4;
1139 }
1140
1141 for (nc = 0; nc < ncol; /**/)
1142 {
1143 WINE_TRACE("looking for format at offset %lu in column %d\n", (SIZE_T)(format - (buf + 0x15)), nc);
1144 if (!HLPFILE_RtfAddControl(rd, "\\pard")) goto done;
1145 if (in_table)
1146 {
1147 nc = GET_SHORT(format, 0);
1148 if (nc == -1) break;
1149 format += 5;
1150 if (!HLPFILE_RtfAddControl(rd, "\\intbl")) goto done;
1151 }
1152 else nc++;
1153 if (buf[0x14] == 0x01)
1154 format += 6;
1155 else
1156 format += 4;
1157 bits = GET_USHORT(format, 0); format += 2;
1158 if (bits & 0x0001) fetch_long(&format);
1159 if (bits & 0x0002)
1160 {
1161 sprintf(tmp, "\\sb%d", HLPFILE_HalfPointsToTwips(fetch_short(&format)));
1162 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1163 }
1164 if (bits & 0x0004)
1165 {
1166 sprintf(tmp, "\\sa%d", HLPFILE_HalfPointsToTwips(fetch_short(&format)));
1167 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1168 }
1169 if (bits & 0x0008)
1170 {
1171 sprintf(tmp, "\\sl%d", HLPFILE_HalfPointsToTwips(fetch_short(&format)));
1172 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1173 }
1174 if (bits & 0x0010)
1175 {
1176 sprintf(tmp, "\\li%d", HLPFILE_HalfPointsToTwips(fetch_short(&format)));
1177 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1178 }
1179 if (bits & 0x0020)
1180 {
1181 sprintf(tmp, "\\ri%d", HLPFILE_HalfPointsToTwips(fetch_short(&format)));
1182 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1183 }
1184 if (bits & 0x0040)
1185 {
1186 sprintf(tmp, "\\fi%d", HLPFILE_HalfPointsToTwips(fetch_short(&format)));
1187 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1188 }
1189 if (bits & 0x0100)
1190 {
1191 BYTE brdr = *format++;
1192 short w;
1193
1194 if (brdr & 0x01 && !HLPFILE_RtfAddControl(rd, "\\box")) goto done;
1195 if (brdr & 0x02 && !HLPFILE_RtfAddControl(rd, "\\brdrt")) goto done;
1196 if (brdr & 0x04 && !HLPFILE_RtfAddControl(rd, "\\brdrl")) goto done;
1197 if (brdr & 0x08 && !HLPFILE_RtfAddControl(rd, "\\brdrb")) goto done;
1198 if (brdr & 0x10 && !HLPFILE_RtfAddControl(rd, "\\brdrr")) goto done;
1199 if (brdr & 0x20 && !HLPFILE_RtfAddControl(rd, "\\brdrth")) goto done;
1200 if (!(brdr & 0x20) && !HLPFILE_RtfAddControl(rd, "\\brdrs")) goto done;
1201 if (brdr & 0x40 && !HLPFILE_RtfAddControl(rd, "\\brdrdb")) goto done;
1202 /* 0x80: unknown */
1203
1204 w = GET_SHORT(format, 0); format += 2;
1205 if (w)
1206 {
1207 sprintf(tmp, "\\brdrw%d", HLPFILE_HalfPointsToTwips(w));
1208 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1209 }
1210 }
1211 if (bits & 0x0200)
1212 {
1213 int i, ntab = fetch_short(&format);
1214 unsigned tab, ts;
1215 const char* kind;
1216
1217 for (i = 0; i < ntab; i++)
1218 {
1219 tab = fetch_ushort(&format);
1220 ts = (tab & 0x4000) ? fetch_ushort(&format) : 0 /* left */;
1221 switch (ts)
1222 {
1223 default: WINE_FIXME("Unknown tab style %x\n", ts);
1224 /* fall through */
1225 case 0: kind = ""; break;
1226 case 1: kind = "\\tqr"; break;
1227 case 2: kind = "\\tqc"; break;
1228 }
1229 /* FIXME: do kind */
1230 sprintf(tmp, "%s\\tx%d",
1231 kind, HLPFILE_HalfPointsToTwips(tab & 0x3FFF));
1232 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1233 }
1234 }
1235 switch (bits & 0xc00)
1236 {
1237 default: WINE_FIXME("Unsupported alignment 0xC00\n"); break;
1238 case 0: if (!HLPFILE_RtfAddControl(rd, "\\ql")) goto done; break;
1239 case 0x400: if (!HLPFILE_RtfAddControl(rd, "\\qr")) goto done; break;
1240 case 0x800: if (!HLPFILE_RtfAddControl(rd, "\\qc")) goto done; break;
1241 }
1242
1243 /* 0x1000 doesn't need space */
1244 if ((bits & 0x1000) && !HLPFILE_RtfAddControl(rd, "\\keep")) goto done;
1245 if ((bits & 0xE080) != 0)
1246 WINE_FIXME("Unsupported bits %04x, potential trouble ahead\n", bits);
1247
1248 while (text < text_end && format < format_end)
1249 {
1250 WINE_TRACE("Got text: %s (%p/%p - %p/%p)\n", wine_dbgstr_a(text), text, text_end, format, format_end);
1251 textsize = strlen(text);
1252 if (textsize)
1253 {
1254 if (rd->force_color)
1255 {
1256 if ((rd->current_link->cookie == hlp_link_popup) ?
1257 !HLPFILE_RtfAddControl(rd, "{\\uld\\cf1") :
1258 !HLPFILE_RtfAddControl(rd, "{\\ul\\cf1")) goto done;
1259 }
1260 if (!HLPFILE_RtfAddText(rd, text)) goto done;
1261 if (rd->force_color && !HLPFILE_RtfAddControl(rd, "}")) goto done;
1262 rd->char_pos += textsize;
1263 }
1264 /* else: null text, keep on storing attributes */
1265 text += textsize + 1;
1266
1267 if (*format == 0xff)
1268 {
1269 format++;
1270 break;
1271 }
1272
1273 WINE_TRACE("format=%02x\n", *format);
1274 switch (*format)
1275 {
1276 case 0x20:
1277 WINE_FIXME("NIY20\n");
1278 format += 5;
1279 break;
1280
1281 case 0x21:
1282 WINE_FIXME("NIY21\n");
1283 format += 3;
1284 break;
1285
1286 case 0x80:
1287 {
1288 unsigned font = GET_USHORT(format, 1);
1289 unsigned fs;
1290
1291 WINE_TRACE("Changing font to %d\n", font);
1292 format += 3;
1293 switch (rd->font_scale)
1294 {
1295 case 0: fs = (4 * page->file->fonts[font].LogFont.lfHeight - 13) / 5; break;
1296 default:
1297 case 1: fs = (4 * page->file->fonts[font].LogFont.lfHeight - 3) / 5; break;
1298 case 2: fs = (4 * page->file->fonts[font].LogFont.lfHeight + 17) / 5; break;
1299 }
1300 /* FIXME: missing at least colors, also bold attribute looses information */
1301
1302 sprintf(tmp, "\\f%d\\cf%d\\fs%d%s%s%s%s",
1303 font, font + 2, fs,
1304 page->file->fonts[font].LogFont.lfWeight > 400 ? "\\b" : "\\b0",
1305 page->file->fonts[font].LogFont.lfItalic ? "\\i" : "\\i0",
1306 page->file->fonts[font].LogFont.lfUnderline ? "\\ul" : "\\ul0",
1307 page->file->fonts[font].LogFont.lfStrikeOut ? "\\strike" : "\\strike0");
1308 if (!HLPFILE_RtfAddControl(rd, tmp)) goto done;
1309 }
1310 break;
1311
1312 case 0x81:
1313 if (!HLPFILE_RtfAddControl(rd, "\\line")) goto done;
1314 format += 1;
1315 rd->char_pos++;
1316 break;
1317
1318 case 0x82:
1319 if (in_table)
1320 {
1321 if (format[1] != 0xFF)
1322 {
1323 if (!HLPFILE_RtfAddControl(rd, "\\par\\intbl")) goto done;
1324 }
1325 else
1326 {
1327 if (!HLPFILE_RtfAddControl(rd, "\\cell\\pard\\intbl")) goto done;
1328 }
1329 }
1330 else if (!HLPFILE_RtfAddControl(rd, "\\par")) goto done;
1331 format += 1;
1332 rd->char_pos++;
1333 break;
1334
1335 case 0x83:
1336 if (!HLPFILE_RtfAddControl(rd, "\\tab")) goto done;
1337 format += 1;
1338 rd->char_pos++;
1339 break;
1340
1341 #if 0
1342 case 0x84:
1343 format += 3;
1344 break;
1345 #endif
1346
1347 case 0x86:
1348 case 0x87:
1349 case 0x88:
1350 {
1351 BYTE type = format[1];
1352 long size;
1353
1354 /* FIXME: we don't use 'BYTE pos = (*format - 0x86);' for the image position */
1355 format += 2;
1356 size = fetch_long(&format);
1357
1358 switch (type)
1359 {
1360 case 0x22:
1361 fetch_ushort(&format); /* hot spot */
1362 /* fall thru */
1363 case 0x03:
1364 switch (GET_SHORT(format, 0))
1365 {
1366 case 0:
1367 HLPFILE_RtfAddGfxByIndex(rd, page->file, GET_SHORT(format, 2));
1368 rd->char_pos++;
1369 break;
1370 case 1:
1371 WINE_FIXME("does it work ??? %x<%lu>#%u\n",
1372 GET_SHORT(format, 0),
1373 size, GET_SHORT(format, 2));
1374 HLPFILE_RtfAddGfxByAddr(rd, page->file, format + 2, size - 4);
1375 rd->char_pos++;
1376 break;
1377 default:
1378 WINE_FIXME("??? %u\n", GET_SHORT(format, 0));
1379 break;
1380 }
1381 break;
1382 case 0x05:
1383 WINE_FIXME("Got an embedded element %s\n", format + 6);
1384 break;
1385 default:
1386 WINE_FIXME("Got a type %d picture\n", type);
1387 break;
1388 }
1389 format += size;
1390 }
1391 break;
1392
1393 case 0x89:
1394 format += 1;
1395 if (!rd->current_link)
1396 WINE_FIXME("No existing link\n");
1397 rd->current_link->cpMax = rd->char_pos;
1398 rd->current_link = NULL;
1399 rd->force_color = FALSE;
1400 break;
1401
1402 case 0x8B:
1403 if (!HLPFILE_RtfAddControl(rd, "\\~")) goto done;
1404 format += 1;
1405 rd->char_pos++;
1406 break;
1407
1408 case 0x8C:
1409 if (!HLPFILE_RtfAddControl(rd, "\\_")) goto done;
1410 /* FIXME: it could be that hypen is also in input stream !! */
1411 format += 1;
1412 rd->char_pos++;
1413 break;
1414
1415 #if 0
1416 case 0xA9:
1417 format += 2;
1418 break;
1419 #endif
1420
1421 case 0xC8:
1422 case 0xCC:
1423 WINE_TRACE("macro => %s\n", format + 3);
1424 HLPFILE_AllocLink(rd, hlp_link_macro, (const char*)format + 3,
1425 GET_USHORT(format, 1), 0, !(*format & 4), -1);
1426 format += 3 + GET_USHORT(format, 1);
1427 break;
1428
1429 case 0xE0:
1430 case 0xE1:
1431 WINE_WARN("jump topic 1 => %u\n", GET_UINT(format, 1));
1432 HLPFILE_AllocLink(rd, (*format & 1) ? hlp_link_link : hlp_link_popup,
1433 page->file->lpszPath, -1, GET_UINT(format, 1)-16, 1, -1);
1434
1435
1436 format += 5;
1437 break;
1438
1439 case 0xE2:
1440 case 0xE3:
1441 case 0xE6:
1442 case 0xE7:
1443 HLPFILE_AllocLink(rd, (*format & 1) ? hlp_link_link : hlp_link_popup,
1444 page->file->lpszPath, -1, GET_UINT(format, 1),
1445 !(*format & 4), -1);
1446 format += 5;
1447 break;
1448
1449 case 0xEA:
1450 case 0xEB:
1451 case 0xEE:
1452 case 0xEF:
1453 {
1454 char* ptr = (char*) format + 8;
1455 BYTE type = format[3];
1456 int wnd = -1;
1457
1458 switch (type)
1459 {
1460 case 1:
1461 wnd = *ptr;
1462 /* fall through */
1463 case 0:
1464 ptr = page->file->lpszPath;
1465 break;
1466 case 6:
1467 for (wnd = page->file->numWindows - 1; wnd >= 0; wnd--)
1468 {
1469 if (!strcmp(ptr, page->file->windows[wnd].name)) break;
1470 }
1471 if (wnd == -1)
1472 WINE_WARN("Couldn't find window info for %s\n", ptr);
1473 ptr += strlen(ptr) + 1;
1474 /* fall through */
1475 case 4:
1476 break;
1477 default:
1478 WINE_WARN("Unknown link type %d\n", type);
1479 break;
1480 }
1481 HLPFILE_AllocLink(rd, (*format & 1) ? hlp_link_link : hlp_link_popup,
1482 ptr, -1, GET_UINT(format, 4), !(*format & 4), wnd);
1483 }
1484 format += 3 + GET_USHORT(format, 1);
1485 break;
1486
1487 default:
1488 WINE_WARN("format %02x\n", *format);
1489 format++;
1490 }
1491 }
1492 }
1493 if (in_table)
1494 {
1495 if (!HLPFILE_RtfAddControl(rd, "\\row\\par\\pard\\plain")) goto done;
1496 rd->char_pos += 2;
1497 }
1498 ret = TRUE;
1499 done:
1500
1501 HeapFree(GetProcessHeap(), 0, text_base);
1502 return ret;
1503 }
1504
1505 /******************************************************************
1506 * HLPFILE_BrowsePage
1507 *
1508 */
1509 BOOL HLPFILE_BrowsePage(HLPFILE_PAGE* page, struct RtfData* rd,
1510 unsigned font_scale, unsigned relative)
1511 {
1512 HLPFILE *hlpfile = page->file;
1513 BYTE *buf, *end;
1514 DWORD ref = page->reference;
1515 unsigned index, old_index = -1, offset, count = 0, offs = 0;
1516 unsigned cpg, parlen;
1517 char tmp[1024];
1518 const char* ck = NULL;
1519
1520 rd->in_text = TRUE;
1521 rd->data = rd->ptr = HeapAlloc(GetProcessHeap(), 0, rd->allocated = 32768);
1522 rd->char_pos = 0;
1523 rd->first_link = rd->current_link = NULL;
1524 rd->force_color = FALSE;
1525 rd->font_scale = font_scale;
1526 rd->relative = relative;
1527 rd->char_pos_rel = 0;
1528
1529 switch (hlpfile->charset)
1530 {
1531 case DEFAULT_CHARSET:
1532 case ANSI_CHARSET: cpg = 1252; break;
1533 case SHIFTJIS_CHARSET: cpg = 932; break;
1534 case HANGEUL_CHARSET: cpg = 949; break;
1535 case GB2312_CHARSET: cpg = 936; break;
1536 case CHINESEBIG5_CHARSET: cpg = 950; break;
1537 case GREEK_CHARSET: cpg = 1253; break;
1538 case TURKISH_CHARSET: cpg = 1254; break;
1539 case HEBREW_CHARSET: cpg = 1255; break;
1540 case ARABIC_CHARSET: cpg = 1256; break;
1541 case BALTIC_CHARSET: cpg = 1257; break;
1542 case VIETNAMESE_CHARSET: cpg = 1258; break;
1543 case RUSSIAN_CHARSET: cpg = 1251; break;
1544 case EE_CHARSET: cpg = 1250; break;
1545 case THAI_CHARSET: cpg = 874; break;
1546 case JOHAB_CHARSET: cpg = 1361; break;
1547 case MAC_CHARSET: ck = "mac"; break;
1548 default:
1549 WINE_FIXME("Unsupported charset %u\n", hlpfile->charset);
1550 cpg = 1252;
1551 }
1552 if (ck)
1553 {
1554 sprintf(tmp, "{\\rtf1\\%s\\deff0", ck);
1555 if (!HLPFILE_RtfAddControl(rd, tmp)) return FALSE;
1556 }
1557 else
1558 {
1559 sprintf(tmp, "{\\rtf1\\ansi\\ansicpg%d\\deff0", cpg);
1560 if (!HLPFILE_RtfAddControl(rd, tmp)) return FALSE;
1561 }
1562
1563 /* generate font table */
1564 if (!HLPFILE_RtfAddControl(rd, "{\\fonttbl")) return FALSE;
1565 for (index = 0; index < hlpfile->numFonts; index++)
1566 {
1567 const char* family;
1568 switch (hlpfile->fonts[index].LogFont.lfPitchAndFamily & 0xF0)
1569 {
1570 case FF_MODERN: family = "modern"; break;
1571 case FF_ROMAN: family = "roman"; break;
1572 case FF_SWISS: family = "swiss"; break;
1573 case FF_SCRIPT: family = "script"; break;
1574 case FF_DECORATIVE: family = "decor"; break;
1575 default: family = "nil"; break;
1576 }
1577 sprintf(tmp, "{\\f%d\\f%s\\fprq%d\\fcharset%d %s;}",
1578 index, family,
1579 hlpfile->fonts[index].LogFont.lfPitchAndFamily & 0x0F,
1580 hlpfile->fonts[index].LogFont.lfCharSet,
1581 hlpfile->fonts[index].LogFont.lfFaceName);
1582 if (!HLPFILE_RtfAddControl(rd, tmp)) return FALSE;
1583 }
1584 if (!HLPFILE_RtfAddControl(rd, "}")) return FALSE;
1585 /* generate color table */
1586 if (!HLPFILE_RtfAddControl(rd, "{\\colortbl ;\\red0\\green128\\blue0;")) return FALSE;
1587 for (index = 0; index < hlpfile->numFonts; index++)
1588 {
1589 const char* family;
1590 switch (hlpfile->fonts[index].LogFont.lfPitchAndFamily & 0xF0)
1591 {
1592 case FF_MODERN: family = "modern"; break;
1593 case FF_ROMAN: family = "roman"; break;
1594 case FF_SWISS: family = "swiss"; break;
1595 case FF_SCRIPT: family = "script"; break;
1596 case FF_DECORATIVE: family = "decor"; break;
1597 default: family = "nil"; break;
1598 }
1599 sprintf(tmp, "\\red%d\\green%d\\blue%d;",
1600 GetRValue(hlpfile->fonts[index].color),
1601 GetGValue(hlpfile->fonts[index].color),
1602 GetBValue(hlpfile->fonts[index].color));
1603 if (!HLPFILE_RtfAddControl(rd, tmp)) return FALSE;
1604 }
1605 if (!HLPFILE_RtfAddControl(rd, "}")) return FALSE;
1606
1607 do
1608 {
1609 if (hlpfile->version <= 16)
1610 {
1611 index = (ref - 0x0C) / hlpfile->dsize;
1612 offset = (ref - 0x0C) % hlpfile->dsize;
1613 }
1614 else
1615 {
1616 index = (ref - 0x0C) >> 14;
1617 offset = (ref - 0x0C) & 0x3FFF;
1618 }
1619
1620 if (hlpfile->version <= 16 && index != old_index && old_index != -1)
1621 {
1622 /* we jumped to the next block, adjust pointers */
1623 ref -= 12;
1624 offset -= 12;
1625 }
1626
1627 if (index >= hlpfile->topic_maplen) {WINE_WARN("maplen\n"); break;}
1628 buf = hlpfile->topic_map[index] + offset;
1629 if (buf + 0x15 >= hlpfile->topic_end) {WINE_WARN("extra\n"); break;}
1630 end = min(buf + GET_UINT(buf, 0), hlpfile->topic_end);
1631 if (index != old_index) {offs = 0; old_index = index;}
1632
1633 switch (buf[0x14])
1634 {
1635 case 0x02:
1636 if (count++) goto done;
1637 break;
1638 case 0x01:
1639 case 0x20:
1640 case 0x23:
1641 if (!HLPFILE_BrowseParagraph(page, rd, buf, end, &parlen)) return FALSE;
1642 if (relative >= index * 0x8000 + offs)
1643 rd->char_pos_rel = rd->char_pos;
1644 offs += parlen;
1645 break;
1646 default:
1647 WINE_ERR("buf[0x14] = %x\n", buf[0x14]);
1648 }
1649 if (hlpfile->version <= 16)
1650 {
1651 ref += GET_UINT(buf, 0xc);
1652 if (GET_UINT(buf, 0xc) == 0)
1653 break;
1654 }
1655 else
1656 ref = GET_UINT(buf, 0xc);
1657 } while (ref != 0xffffffff);
1658 done:
1659 page->first_link = rd->first_link;
1660 return HLPFILE_RtfAddControl(rd, "}");
1661 }
1662
1663 /******************************************************************
1664 * HLPFILE_ReadFont
1665 *
1666 *
1667 */
1668 static BOOL HLPFILE_ReadFont(HLPFILE* hlpfile)
1669 {
1670 BYTE *ref, *end;
1671 unsigned i, len, idx;
1672 unsigned face_num, dscr_num, face_offset, dscr_offset;
1673 BYTE flag, family;
1674
1675 if (!HLPFILE_FindSubFile(hlpfile, "|FONT", &ref, &end))
1676 {
1677 WINE_WARN("no subfile FONT\n");
1678 hlpfile->numFonts = 0;
1679 hlpfile->fonts = NULL;
1680 return FALSE;
1681 }
1682
1683 ref += 9;
1684
1685 face_num = GET_USHORT(ref, 0);
1686 dscr_num = GET_USHORT(ref, 2);
1687 face_offset = GET_USHORT(ref, 4);
1688 dscr_offset = GET_USHORT(ref, 6);
1689
1690 WINE_TRACE("Got NumFacenames=%u@%u NumDesc=%u@%u\n",
1691 face_num, face_offset, dscr_num, dscr_offset);
1692
1693 hlpfile->numFonts = dscr_num;
1694 hlpfile->fonts = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_FONT) * dscr_num);
1695
1696 len = (dscr_offset - face_offset) / face_num;
1697 /* EPP for (i = face_offset; i < dscr_offset; i += len) */
1698 /* EPP WINE_FIXME("[%d]: %*s\n", i / len, len, ref + i); */
1699 for (i = 0; i < dscr_num; i++)
1700 {
1701 flag = ref[dscr_offset + i * 11 + 0];
1702 family = ref[dscr_offset + i * 11 + 2];
1703
1704 hlpfile->fonts[i].LogFont.lfHeight = ref[dscr_offset + i * 11 + 1];
1705 hlpfile->fonts[i].LogFont.lfWidth = 0;
1706 hlpfile->fonts[i].LogFont.lfEscapement = 0;
1707 hlpfile->fonts[i].LogFont.lfOrientation = 0;
1708 hlpfile->fonts[i].LogFont.lfWeight = (flag & 1) ? 700 : 400;
1709 hlpfile->fonts[i].LogFont.lfItalic = (flag & 2) ? TRUE : FALSE;
1710 hlpfile->fonts[i].LogFont.lfUnderline = (flag & 4) ? TRUE : FALSE;
1711 hlpfile->fonts[i].LogFont.lfStrikeOut = (flag & 8) ? TRUE : FALSE;
1712 hlpfile->fonts[i].LogFont.lfCharSet = hlpfile->charset;
1713 hlpfile->fonts[i].LogFont.lfOutPrecision = OUT_DEFAULT_PRECIS;
1714 hlpfile->fonts[i].LogFont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
1715 hlpfile->fonts[i].LogFont.lfQuality = DEFAULT_QUALITY;
1716 hlpfile->fonts[i].LogFont.lfPitchAndFamily = DEFAULT_PITCH;
1717
1718 switch (family)
1719 {
1720 case 0x01: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_MODERN; break;
1721 case 0x02: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_ROMAN; break;
1722 case 0x03: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_SWISS; break;
1723 case 0x04: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_SCRIPT; break;
1724 case 0x05: hlpfile->fonts[i].LogFont.lfPitchAndFamily |= FF_DECORATIVE; break;
1725 default: WINE_FIXME("Unknown family %u\n", family);
1726 }
1727 idx = GET_USHORT(ref, dscr_offset + i * 11 + 3);
1728
1729 if (idx < face_num)
1730 {
1731 memcpy(hlpfile->fonts[i].LogFont.lfFaceName, ref + face_offset + idx * len, min(len, LF_FACESIZE - 1));
1732 hlpfile->fonts[i].LogFont.lfFaceName[min(len, LF_FACESIZE - 1)] = '\0';
1733 }
1734 else
1735 {
1736 WINE_FIXME("Too high face ref (%u/%u)\n", idx, face_num);
1737 strcpy(hlpfile->fonts[i].LogFont.lfFaceName, "Helv");
1738 }
1739 hlpfile->fonts[i].hFont = 0;
1740 hlpfile->fonts[i].color = RGB(ref[dscr_offset + i * 11 + 5],
1741 ref[dscr_offset + i * 11 + 6],
1742 ref[dscr_offset + i * 11 + 7]);
1743 #define X(b,s) ((flag & (1 << b)) ? "-"s: "")
1744 WINE_TRACE("Font[%d]: flags=%02x%s%s%s%s%s%s pSize=%u family=%u face=%s[%u] color=%08x\n",
1745 i, flag,
1746 X(0, "bold"),
1747 X(1, "italic"),
1748 X(2, "underline"),
1749 X(3, "strikeOut"),
1750 X(4, "dblUnderline"),
1751 X(5, "smallCaps"),
1752 ref[dscr_offset + i * 11 + 1],
1753 family,
1754 hlpfile->fonts[i].LogFont.lfFaceName, idx,
1755 GET_UINT(ref, dscr_offset + i * 11 + 5) & 0x00FFFFFF);
1756 }
1757 return TRUE;
1758 }
1759
1760 /***********************************************************************
1761 *
1762 * HLPFILE_ReadFileToBuffer
1763 */
1764 static BOOL HLPFILE_ReadFileToBuffer(HLPFILE* hlpfile, HFILE hFile)
1765 {
1766 BYTE header[16], dummy[1];
1767
1768 if (_hread(hFile, header, 16) != 16) {WINE_WARN("header\n"); return FALSE;};
1769
1770 /* sanity checks */
1771 if (GET_UINT(header, 0) != 0x00035F3F)
1772 {WINE_WARN("wrong header\n"); return FALSE;};
1773
1774 hlpfile->file_buffer_size = GET_UINT(header, 12);
1775 hlpfile->file_buffer = HeapAlloc(GetProcessHeap(), 0, hlpfile->file_buffer_size + 1);
1776 if (!hlpfile->file_buffer) return FALSE;
1777
1778 memcpy(hlpfile->file_buffer, header, 16);
1779 if (_hread(hFile, hlpfile->file_buffer + 16, hlpfile->file_buffer_size - 16) !=hlpfile->file_buffer_size - 16)
1780 {WINE_WARN("filesize1\n"); return FALSE;};
1781
1782 if (_hread(hFile, dummy, 1) != 0) WINE_WARN("filesize2\n");
1783
1784 hlpfile->file_buffer[hlpfile->file_buffer_size] = '\0'; /* FIXME: was '0', sounds backwards to me */
1785
1786 return TRUE;
1787 }
1788
1789 /**************************************************************************
1790 * comp_FindSubFile
1791 *
1792 * HLPFILE_BPTreeCompare function for HLPFILE directory.
1793 *
1794 */
1795 static int comp_FindSubFile(void *p, const void *key,
1796 int leaf, void** next)
1797 {
1798 *next = (char *)p+strlen(p)+(leaf?5:3);
1799 WINE_TRACE("Comparing '%s' with '%s'\n", (char *)p, (char *)key);
1800 return strcmp(p, key);
1801 }
1802
1803 /***********************************************************************
1804 *
1805 * HLPFILE_FindSubFile
1806 */
1807 static BOOL HLPFILE_FindSubFile(HLPFILE* hlpfile, LPCSTR name, BYTE **subbuf, BYTE **subend)
1808 {
1809 BYTE *ptr;
1810
1811 WINE_TRACE("looking for file '%s'\n", name);
1812 ptr = HLPFILE_BPTreeSearch(hlpfile->file_buffer + GET_UINT(hlpfile->file_buffer, 4),
1813 name, comp_FindSubFile);
1814 if (!ptr) return FALSE;
1815 *subbuf = hlpfile->file_buffer + GET_UINT(ptr, strlen(name)+1);
1816 if (*subbuf >= hlpfile->file_buffer + hlpfile->file_buffer_size)
1817 {
1818 WINE_ERR("internal file %s does not fit\n", name);
1819 return FALSE;
1820 }
1821 *subend = *subbuf + GET_UINT(*subbuf, 0);
1822 if (*subend > hlpfile->file_buffer + hlpfile->file_buffer_size)
1823 {
1824 WINE_ERR("internal file %s does not fit\n", name);
1825 return FALSE;
1826 }
1827 if (GET_UINT(*subbuf, 0) < GET_UINT(*subbuf, 4) + 9)
1828 {
1829 WINE_ERR("invalid size provided for internal file %s\n", name);
1830 return FALSE;
1831 }
1832 return TRUE;
1833 }
1834
1835 /***********************************************************************
1836 *
1837 * HLPFILE_SystemCommands
1838 */
1839 static BOOL HLPFILE_SystemCommands(HLPFILE* hlpfile)
1840 {
1841 BYTE *buf, *ptr, *end;
1842 HLPFILE_MACRO *macro, **m;
1843 LPSTR p;
1844 unsigned short magic, minor, major, flags;
1845
1846 hlpfile->lpszTitle = NULL;
1847
1848 if (!HLPFILE_FindSubFile(hlpfile, "|SYSTEM", &buf, &end)) return FALSE;
1849
1850 magic = GET_USHORT(buf + 9, 0);
1851 minor = GET_USHORT(buf + 9, 2);
1852 major = GET_USHORT(buf + 9, 4);
1853 /* gen date on 4 bytes */
1854 flags = GET_USHORT(buf + 9, 10);
1855 WINE_TRACE("Got system header: magic=%04x version=%d.%d flags=%04x\n",
1856 magic, major, minor, flags);
1857 if (magic != 0x036C || major != 1)
1858 {WINE_WARN("Wrong system header\n"); return FALSE;}
1859 if (minor <= 16)
1860 {
1861 hlpfile->tbsize = 0x800;
1862 hlpfile->compressed = 0;
1863 }
1864 else if (flags == 0)
1865 {
1866 hlpfile->tbsize = 0x1000;
1867 hlpfile->compressed = 0;
1868 }
1869 else if (flags == 4)
1870 {
1871 hlpfile->tbsize = 0x1000;
1872 hlpfile->compressed = 1;
1873 }
1874 else
1875 {
1876 hlpfile->tbsize = 0x800;
1877 hlpfile->compressed = 1;
1878 }
1879
1880 if (hlpfile->compressed)
1881 hlpfile->dsize = 0x4000;
1882 else
1883 hlpfile->dsize = hlpfile->tbsize - 0x0C;
1884
1885 hlpfile->version = minor;
1886 hlpfile->flags = flags;
1887 hlpfile->charset = DEFAULT_CHARSET;
1888
1889 for (ptr = buf + 0x15; ptr + 4 <= end; ptr += GET_USHORT(ptr, 2) + 4)
1890 {
1891 char *str = (char*) ptr + 4;
1892 switch (GET_USHORT(ptr, 0))
1893 {
1894 case 1:
1895 if (hlpfile->lpszTitle) {WINE_WARN("title\n"); break;}
1896 hlpfile->lpszTitle = HeapAlloc(GetProcessHeap(), 0, strlen(str) + 1);
1897 if (!hlpfile->lpszTitle) return FALSE;
1898 lstrcpy(hlpfile->lpszTitle, str);
1899 WINE_TRACE("Title: %s\n", hlpfile->lpszTitle);
1900 break;
1901
1902 case 2:
1903 if (hlpfile->lpszCopyright) {WINE_WARN("copyright\n"); break;}
1904 hlpfile->lpszCopyright = HeapAlloc(GetProcessHeap(), 0, strlen(str) + 1);
1905 if (!hlpfile->lpszCopyright) return FALSE;
1906 lstrcpy(hlpfile->lpszCopyright, str);
1907 WINE_TRACE("Copyright: %s\n", hlpfile->lpszCopyright);
1908 break;
1909
1910 case 3:
1911 if (GET_USHORT(ptr, 2) != 4) {WINE_WARN("system3\n");break;}
1912 hlpfile->contents_start = GET_UINT(ptr, 4);
1913 WINE_TRACE("Setting contents start at %08lx\n", hlpfile->contents_start);
1914 break;
1915
1916 case 4:
1917 macro = HeapAlloc(GetProcessHeap(), 0, sizeof(HLPFILE_MACRO) + lstrlen(str) + 1);
1918 if (!macro) break;
1919 p = (char*)macro + sizeof(HLPFILE_MACRO);
1920 lstrcpy(p, str);
1921 macro->lpszMacro = p;
1922 macro->next = 0;
1923 for (m = &hlpfile->first_macro; *m; m = &(*m)->next);
1924 *m = macro;
1925 break;
1926
1927 case 5:
1928 if (GET_USHORT(ptr, 4 + 4) != 1)
1929 WINE_FIXME("More than one icon, picking up first\n");
1930 /* 0x16 is sizeof(CURSORICONDIR), see user32/user_private.h */
1931 hlpfile->hIcon = CreateIconFromResourceEx(ptr + 4 + 0x16,
1932 GET_USHORT(ptr, 2) - 0x16, TRUE,
1933 0x30000, 0, 0, 0);
1934 break;
1935
1936 case 6:
1937 if (GET_USHORT(ptr, 2) != 90) {WINE_WARN("system6\n");break;}
1938
1939 if (hlpfile->windows)
1940 hlpfile->windows = HeapReAlloc(GetProcessHeap(), 0, hlpfile->windows,
1941 sizeof(HLPFILE_WINDOWINFO) * ++hlpfile->numWindows);
1942 else
1943 hlpfile->windows = HeapAlloc(GetProcessHeap(), 0,
1944 sizeof(HLPFILE_WINDOWINFO) * ++hlpfile->numWindows);
1945
1946 if (hlpfile->windows)
1947 {
1948 unsigned flags = GET_USHORT(ptr, 4);
1949 HLPFILE_WINDOWINFO* wi = &hlpfile->windows[hlpfile->numWindows - 1];
1950
1951 if (flags & 0x0001) strcpy(wi->type, &str[2]);
1952 else wi->type[0] = '\0';
1953 if (flags & 0x0002) strcpy(wi->name, &str[12]);
1954 else wi->name[0] = '\0';
1955 if (flags & 0x0004) strcpy(wi->caption, &str[21]);
1956 else lstrcpynA(wi->caption, hlpfile->lpszTitle, sizeof(wi->caption));
1957 wi->origin.x = (flags & 0x0008) ? GET_USHORT(ptr, 76) : CW_USEDEFAULT;
1958 wi->origin.y = (flags & 0x0010) ? GET_USHORT(ptr, 78) : CW_USEDEFAULT;
1959 wi->size.cx = (flags & 0x0020) ? GET_USHORT(ptr, 80) : CW_USEDEFAULT;
1960 wi->size.cy = (flags & 0x0040) ? GET_USHORT(ptr, 82) : CW_USEDEFAULT;
1961 wi->style = (flags & 0x0080) ? GET_USHORT(ptr, 84) : SW_SHOW;
1962 wi->win_style = WS_OVERLAPPEDWINDOW;
1963 wi->sr_color = (flags & 0x0100) ? GET_UINT(ptr, 86) : 0xFFFFFF;
1964 wi->nsr_color = (flags & 0x0200) ? GET_UINT(ptr, 90) : 0xFFFFFF;
1965 WINE_TRACE("System-Window: flags=%c%c%c%c%c%c%c%c type=%s name=%s caption=%s (%d,%d)x(%d,%d)\n",
1966 flags & 0x0001 ? 'T' : 't',
1967 flags & 0x0002 ? 'N' : 'n',
1968 flags & 0x0004 ? 'C' : 'c',
1969 flags & 0x0008 ? 'X' : 'x',
1970 flags & 0x0010 ? 'Y' : 'y',
1971 flags & 0x0020 ? 'W' : 'w',
1972 flags & 0x0040 ? 'H' : 'h',
1973 flags & 0x0080 ? 'S' : 's',
1974 wi->type, wi->name, wi->caption, wi->origin.x, wi->origin.y,
1975 wi->size.cx, wi->size.cy);
1976 }
1977 break;
1978 case 8:
1979 WINE_WARN("Citation: '%s'\n", ptr + 4);
1980 break;
1981 case 11:
1982 hlpfile->charset = ptr[4];
1983 WINE_TRACE("Charset: %d\n", hlpfile->charset);
1984 break;
1985 default:
1986 WINE_WARN("Unsupported SystemRecord[%d]\n", GET_USHORT(ptr, 0));
1987 }
1988 }
1989 if (!hlpfile->lpszTitle)
1990 hlpfile->lpszTitle = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, 1);
1991 return TRUE;
1992 }
1993
1994 /***********************************************************************
1995 *
1996 * HLPFILE_UncompressedLZ77_Size
1997 */
1998 static INT HLPFILE_UncompressedLZ77_Size(const BYTE *ptr, const BYTE *end)
1999 {
2000 int i, newsize = 0;
2001
2002 while (ptr < end)
2003 {
2004 int mask = *ptr++;
2005 for (i = 0; i < 8 && ptr < end; i++, mask >>= 1)
2006 {
2007 if (mask & 1)
2008 {
2009 int code = GET_USHORT(ptr, 0);
2010 int len = 3 + (code >> 12);
2011 newsize += len;
2012 ptr += 2;
2013 }
2014 else newsize++, ptr++;
2015 }
2016 }
2017
2018 return newsize;
2019 }
2020
2021 /***********************************************************************
2022 *
2023 * HLPFILE_UncompressLZ77
2024 */
2025 static BYTE *HLPFILE_UncompressLZ77(const BYTE *ptr, const BYTE *end, BYTE *newptr)
2026 {
2027 int i;
2028
2029 while (ptr < end)
2030 {
2031 int mask = *ptr++;
2032 for (i = 0; i < 8 && ptr < end; i++, mask >>= 1)
2033 {
2034 if (mask & 1)
2035 {
2036 int code = GET_USHORT(ptr, 0);
2037 int len = 3 + (code >> 12);
2038 int offset = code & 0xfff;
2039 /*
2040 * We must copy byte-by-byte here. We cannot use memcpy nor
2041 * memmove here. Just example:
2042 * a[]={1,2,3,4,5,6,7,8,9,10}
2043 * newptr=a+2;
2044 * offset=1;
2045 * We expect:
2046 * {1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 11, 12}
2047 */
2048 for (; len>0; len--, newptr++) *newptr = *(newptr-offset-1);
2049 ptr += 2;
2050 }
2051 else *newptr++ = *ptr++;
2052 }
2053 }
2054
2055 return newptr;
2056 }
2057
2058 /***********************************************************************
2059 *
2060 * HLPFILE_UncompressLZ77_Phrases
2061 */
2062 static BOOL HLPFILE_UncompressLZ77_Phrases(HLPFILE* hlpfile)
2063 {
2064 UINT i, num, dec_size, head_size;
2065 BYTE *buf, *end;
2066
2067 if (!HLPFILE_FindSubFile(hlpfile, "|Phrases", &buf, &end)) return FALSE;
2068
2069 if (hlpfile->version <= 16)
2070 head_size = 13;
2071 else
2072 head_size = 17;
2073
2074 num = hlpfile->num_phrases = GET_USHORT(buf, 9);
2075 if (buf + 2 * num + 0x13 >= end) {WINE_WARN("1a\n"); return FALSE;};
2076
2077 if (hlpfile->version <= 16)
2078 dec_size = end - buf - 15 - 2 * num;
2079 else
2080 dec_size = HLPFILE_UncompressedLZ77_Size(buf + 0x13 + 2 * num, end);
2081
2082 hlpfile->phrases_offsets = HeapAlloc(GetProcessHeap(), 0, sizeof(unsigned) * (num + 1));
2083 hlpfile->phrases_buffer = HeapAlloc(GetProcessHeap(), 0, dec_size);
2084 if (!hlpfile->phrases_offsets || !hlpfile->phrases_buffer)
2085 {
2086 HeapFree(GetProcessHeap(), 0, hlpfile->phrases_offsets);
2087 HeapFree(GetProcessHeap(), 0, hlpfile->phrases_buffer);
2088 return FALSE;
2089 }
2090
2091 for (i = 0; i <= num; i++)
2092 hlpfile->phrases_offsets[i] = GET_USHORT(buf, head_size + 2 * i) - 2 * num - 2;
2093
2094 if (hlpfile->version <= 16)
2095 memcpy(hlpfile->phrases_buffer, buf + 15 + 2*num, dec_size);
2096 else
2097 HLPFILE_UncompressLZ77(buf + 0x13 + 2 * num, end, (BYTE*)hlpfile->phrases_buffer);
2098
2099 hlpfile->hasPhrases = TRUE;
2100 return TRUE;
2101 }
2102
2103 /***********************************************************************
2104 *
2105 * HLPFILE_Uncompress_Phrases40
2106 */
2107 static BOOL HLPFILE_Uncompress_Phrases40(HLPFILE* hlpfile)
2108 {
2109 UINT num;
2110 INT dec_size, cpr_size;
2111 BYTE *buf_idx, *end_idx;
2112 BYTE *buf_phs, *end_phs;
2113 long* ptr, mask = 0;
2114 unsigned int i;
2115 unsigned short bc, n;
2116
2117 if (!HLPFILE_FindSubFile(hlpfile, "|PhrIndex", &buf_idx, &end_idx) ||
2118 !HLPFILE_FindSubFile(hlpfile, "|PhrImage", &buf_phs, &end_phs)) return FALSE;
2119
2120 ptr = (long*)(buf_idx + 9 + 28);
2121 bc = GET_USHORT(buf_idx, 9 + 24) & 0x0F;
2122 num = hlpfile->num_phrases = GET_USHORT(buf_idx, 9 + 4);
2123
2124 WINE_TRACE("Index: Magic=%08x #entries=%u CpsdSize=%u PhrImgSize=%u\n"
2125 "\tPhrImgCprsdSize=%u 0=%u bc=%x ukn=%x\n",
2126 GET_UINT(buf_idx, 9 + 0),
2127 GET_UINT(buf_idx, 9 + 4),
2128 GET_UINT(buf_idx, 9 + 8),
2129 GET_UINT(buf_idx, 9 + 12),
2130 GET_UINT(buf_idx, 9 + 16),
2131 GET_UINT(buf_idx, 9 + 20),
2132 GET_USHORT(buf_idx, 9 + 24),
2133 GET_USHORT(buf_idx, 9 + 26));
2134
2135 dec_size = GET_UINT(buf_idx, 9 + 12);
2136 cpr_size = GET_UINT(buf_idx, 9 + 16);
2137
2138 if (dec_size != cpr_size &&
2139 dec_size != HLPFILE_UncompressedLZ77_Size(buf_phs + 9, end_phs))
2140 {
2141 WINE_WARN("size mismatch %u %u\n",
2142 dec_size, HLPFILE_UncompressedLZ77_Size(buf_phs + 9, end_phs));
2143 dec_size = max(dec_size, HLPFILE_UncompressedLZ77_Size(buf_phs + 9, end_phs));
2144 }
2145
2146 hlpfile->phrases_offsets = HeapAlloc(GetProcessHeap(), 0, sizeof(unsigned) * (num + 1));
2147 hlpfile->phrases_buffer = HeapAlloc(GetProcessHeap(), 0, dec_size);
2148 if (!hlpfile->phrases_offsets || !hlpfile->phrases_buffer)
2149 {
2150 HeapFree(GetProcessHeap(), 0, hlpfile->phrases_offsets);
2151 HeapFree(GetProcessHeap(), 0, hlpfile->phrases_buffer);
2152 return FALSE;
2153 }
2154
2155 #define getbit() (ptr += (mask < 0), mask = mask*2 + (mask<=0), (*ptr & mask) != 0)
2156
2157 hlpfile->phrases_offsets[0] = 0;
2158 for (i = 0; i < num; i++)
2159 {
2160 for (n = 1; getbit(); n += 1 << bc);
2161 if (getbit()) n++;
2162 if (bc > 1 && getbit()) n += 2;
2163 if (bc > 2 && getbit()) n += 4;
2164 if (bc > 3 && getbit()) n += 8;
2165 if (bc > 4 && getbit()) n += 16;
2166 hlpfile->phrases_offsets[i + 1] = hlpfile->phrases_offsets[i] + n;
2167 }
2168 #undef getbit
2169
2170 if (dec_size == cpr_size)
2171 memcpy(hlpfile->phrases_buffer, buf_phs + 9, dec_size);
2172 else
2173 HLPFILE_UncompressLZ77(buf_phs + 9, end_phs, (BYTE*)hlpfile->phrases_buffer);
2174
2175 hlpfile->hasPhrases40 = TRUE;
2176 return TRUE;
2177 }
2178
2179 /***********************************************************************
2180 *
2181 * HLPFILE_Uncompress_Topic
2182 */
2183 static BOOL HLPFILE_Uncompress_Topic(HLPFILE* hlpfile)
2184 {
2185 BYTE *buf, *ptr, *end, *newptr;
2186 unsigned int i, newsize = 0;
2187 unsigned int topic_size;
2188
2189 if (!HLPFILE_FindSubFile(hlpfile, "|TOPIC", &buf, &end))
2190 {WINE_WARN("topic0\n"); return FALSE;}
2191
2192 buf += 9; /* Skip file header */
2193 topic_size = end - buf;
2194 if (hlpfile->compressed)
2195 {
2196 hlpfile->topic_maplen = (topic_size - 1) / hlpfile->tbsize + 1;
2197
2198 for (i = 0; i < hlpfile->topic_maplen; i++)
2199 {
2200 ptr = buf + i * hlpfile->tbsize;
2201
2202 /* I don't know why, it's necessary for printman.hlp */
2203 if (ptr + 0x44 > end) ptr = end - 0x44;
2204
2205 newsize += HLPFILE_UncompressedLZ77_Size(ptr + 0xc, min(end, ptr + hlpfile->tbsize));
2206 }
2207
2208 hlpfile->topic_map = HeapAlloc(GetProcessHeap(), 0,
2209 hlpfile->topic_maplen * sizeof(hlpfile->topic_map[0]) + newsize);
2210 if (!hlpfile->topic_map) return FALSE;
2211 newptr = (BYTE*)(hlpfile->topic_map + hlpfile->topic_maplen);
2212 hlpfile->topic_end = newptr + newsize;
2213
2214 for (i = 0; i < hlpfile->topic_maplen; i++)
2215 {
2216 ptr = buf + i * hlpfile->tbsize;
2217 if (ptr + 0x44 > end) ptr = end - 0x44;
2218
2219 hlpfile->topic_map[i] = newptr;
2220 newptr = HLPFILE_UncompressLZ77(ptr + 0xc, min(end, ptr + hlpfile->tbsize), newptr);
2221 }
2222 }
2223 else
2224 {
2225 /* basically, we need to copy the TopicBlockSize byte pages
2226 * (removing the first 0x0C) in one single area in memory
2227 */
2228 hlpfile->topic_maplen = (topic_size - 1) / hlpfile->tbsize + 1;
2229 hlpfile->topic_map = HeapAlloc(GetProcessHeap(), 0,
2230 hlpfile->topic_maplen * (sizeof(hlpfile->topic_map[0]) + hlpfile->dsize));
2231 if (!hlpfile->topic_map) return FALSE;
2232 newptr = (BYTE*)(hlpfile->topic_map + hlpfile->topic_maplen);
2233 hlpfile->topic_end = newptr + topic_size;
2234
2235 for (i = 0; i < hlpfile->topic_maplen; i++)
2236 {
2237 hlpfile->topic_map[i] = newptr + i * hlpfile->dsize;
2238 memcpy(hlpfile->topic_map[i], buf + i * hlpfile->tbsize + 0x0C, hlpfile->dsize);
2239 }
2240 }
2241 return TRUE;
2242 }
2243
2244 /***********************************************************************
2245 *
2246 * HLPFILE_Uncompress2
2247 */
2248
2249 static void HLPFILE_Uncompress2(HLPFILE* hlpfile, const BYTE *ptr, const BYTE *end, BYTE *newptr, const BYTE *newend)
2250 {
2251 BYTE *phptr, *phend;
2252 UINT code;
2253 UINT index;
2254
2255 while (ptr < end && newptr < newend)
2256 {
2257 if (!*ptr || *ptr >= 0x10)
2258 *newptr++ = *ptr++;
2259 else
2260 {
2261 code = 0x100 * ptr[0] + ptr[1];
2262 index = (code - 0x100) / 2;
2263
2264 phptr = (BYTE*)hlpfile->phrases_buffer + hlpfile->phrases_offsets[index];
2265 phend = (BYTE*)hlpfile->phrases_buffer + hlpfile->phrases_offsets[index + 1];
2266
2267 if (newptr + (phend - phptr) > newend)
2268 {
2269 WINE_FIXME("buffer overflow %p > %p for %lu bytes\n",
2270 newptr, newend, (SIZE_T)(phend - phptr));
2271 return;
2272 }
2273 memcpy(newptr, phptr, phend - phptr);
2274 newptr += phend - phptr;
2275 if (code & 1) *newptr++ = ' ';
2276
2277 ptr += 2;
2278 }
2279 }
2280 if (newptr > newend) WINE_FIXME("buffer overflow %p > %p\n", newptr, newend);
2281 }
2282
2283 /******************************************************************
2284 * HLPFILE_Uncompress3
2285 *
2286 *
2287 */
2288 static BOOL HLPFILE_Uncompress3(HLPFILE* hlpfile, char* dst, const char* dst_end,
2289 const BYTE* src, const BYTE* src_end)
2290 {
2291 unsigned int idx, len;
2292
2293 for (; src < src_end; src++)
2294 {
2295 if ((*src & 1) == 0)
2296 {
2297 idx = *src / 2;
2298 if (idx > hlpfile->num_phrases)
2299 {
2300 WINE_ERR("index in phrases %d/%d\n", idx, hlpfile->num_phrases);
2301 len = 0;
2302 }
2303 else
2304 {
2305 len = hlpfile->phrases_offsets[idx + 1] - hlpfile->phrases_offsets[idx];
2306 if (dst + len <= dst_end)
2307 memcpy(dst, &hlpfile->phrases_buffer[hlpfile->phrases_offsets[idx]], len);
2308 }
2309 }
2310 else if ((*src & 0x03) == 0x01)
2311 {
2312 idx = (*src + 1) * 64;
2313 idx += *++src;
2314 if (idx > hlpfile->num_phrases)
2315 {
2316 WINE_ERR("index in phrases %d/%d\n", idx, hlpfile->num_phrases);
2317 len = 0;
2318 }
2319 else
2320 {
2321 len = hlpfile->phrases_offsets[idx + 1] - hlpfile->phrases_offsets[idx];
2322 if (dst + len <= dst_end)
2323 memcpy(dst, &hlpfile->phrases_buffer[hlpfile->phrases_offsets[idx]], len);
2324 }
2325 }
2326 else if ((*src & 0x07) == 0x03)
2327 {
2328 len = (*src / 8) + 1;
2329 if (dst + len <= dst_end)
2330 memcpy(dst, src + 1, len);
2331 src += len;
2332 }
2333 else
2334 {
2335 len = (*src / 16) + 1;
2336 if (dst + len <= dst_end)
2337 memset(dst, ((*src & 0x0F) == 0x07) ? ' ' : 0, len);
2338 }
2339 dst += len;
2340 }
2341
2342 if (dst > dst_end) WINE_ERR("buffer overflow (%p > %p)\n", dst, dst_end);
2343 return TRUE;
2344 }
2345
2346 /******************************************************************
2347 * HLPFILE_UncompressRLE
2348 *
2349 *
2350 */
2351 static void HLPFILE_UncompressRLE(const BYTE* src, const BYTE* end, BYTE* dst, unsigned dstsz)
2352 {
2353 BYTE ch;
2354 BYTE* sdst = dst + dstsz;
2355
2356 while (src < end)
2357 {
2358 ch = *src++;
2359 if (ch & 0x80)
2360 {
2361 ch &= 0x7F;
2362 if (dst + ch <= sdst)
2363 memcpy(dst, src, ch);
2364 src += ch;
2365 }
2366 else
2367 {
2368 if (dst + ch <= sdst)
2369 memset(dst, (char)*src, ch);
2370 src++;
2371 }
2372 dst += ch;
2373 }
2374 if (dst != sdst)
2375 WINE_WARN("Buffer X-flow: d(%lu) instead of d(%u)\n",
2376 (SIZE_T)(dst - (sdst - dstsz)), dstsz);
2377 }
2378
2379 /**************************************************************************
2380 * HLPFILE_BPTreeSearch
2381 *
2382 * Searches for an element in B+ tree
2383 *
2384 * PARAMS
2385 * buf [I] pointer to the embedded file structured as a B+ tree
2386 * key [I] pointer to data to find
2387 * comp [I] compare function
2388 *
2389 * RETURNS
2390 * Pointer to block identified by key, or NULL if failure.
2391 *
2392 */
2393 void* HLPFILE_BPTreeSearch(BYTE* buf, const void* key,
2394 HLPFILE_BPTreeCompare comp)
2395 {
2396 unsigned magic;
2397 unsigned page_size;
2398 unsigned cur_page;
2399 unsigned level;
2400 BYTE *pages, *ptr, *newptr;
2401 int i, entries;
2402 int ret;
2403
2404 magic = GET_USHORT(buf, 9);
2405 if (magic != 0x293B)
2406 {
2407 WINE_ERR("Invalid magic in B+ tree: 0x%x\n", magic);
2408 return NULL;
2409 }
2410 page_size = GET_USHORT(buf, 9+4);
2411 cur_page = GET_USHORT(buf, 9+26);
2412 level = GET_USHORT(buf, 9+32);
2413 pages = buf + 9 + 38;
2414 while (--level > 0)
2415 {
2416 ptr = pages + cur_page*page_size;
2417 entries = GET_SHORT(ptr, 2);
2418 ptr += 6;
2419 for (i = 0; i < entries; i++)
2420 {
2421 if (comp(ptr, key, 0, (void **)&newptr) > 0) break;
2422 ptr = newptr;
2423 }
2424 cur_page = GET_USHORT(ptr-2, 0);
2425 }
2426 ptr = pages + cur_page*page_size;
2427 entries = GET_SHORT(ptr, 2);
2428 ptr += 8;
2429 for (i = 0; i < entries; i++)
2430 {
2431 ret = comp(ptr, key, 1, (void **)&newptr);
2432 if (ret == 0) return ptr;
2433 if (ret > 0) return NULL;
2434 ptr = newptr;
2435 }
2436 return NULL;
2437 }
2438
2439 /**************************************************************************
2440 * HLPFILE_BPTreeEnum
2441 *
2442 * Enumerates elements in B+ tree.
2443 *
2444 * PARAMS
2445 * buf [I] pointer to the embedded file structured as a B+ tree
2446 * cb [I] compare function
2447 * cookie [IO] cookie for cb function
2448 */
2449 void HLPFILE_BPTreeEnum(BYTE* buf, HLPFILE_BPTreeCallback cb, void* cookie)
2450 {
2451 unsigned magic;
2452 unsigned page_size;
2453 unsigned cur_page;
2454 unsigned level;
2455 BYTE *pages, *ptr, *newptr;
2456 int i, entries;
2457
2458 magic = GET_USHORT(buf, 9);
2459 if (magic != 0x293B)
2460 {
2461 WINE_ERR("Invalid magic in B+ tree: 0x%x\n", magic);
2462 return;
2463 }
2464 page_size = GET_USHORT(buf, 9+4);
2465 cur_page = GET_USHORT(buf, 9+26);
2466 level = GET_USHORT(buf, 9+32);
2467 pages = buf + 9 + 38;
2468 while (--level > 0)
2469 {
2470 ptr = pages + cur_page*page_size;
2471 cur_page = GET_USHORT(ptr, 4);
2472 }
2473 while (cur_page != 0xFFFF)
2474 {
2475 ptr = pages + cur_page*page_size;
2476 entries = GET_SHORT(ptr, 2);
2477 ptr += 8;
2478 for (i = 0; i < entries; i++)
2479 {
2480 cb(ptr, (void **)&newptr, cookie);
2481 ptr = newptr;
2482 }
2483 cur_page = GET_USHORT(pages+cur_page*page_size, 6);
2484 }
2485 }
2486
2487
2488 /***********************************************************************
2489 *
2490 * HLPFILE_GetContext
2491 */
2492 static BOOL HLPFILE_GetContext(HLPFILE *hlpfile)
2493 {
2494 BYTE *cbuf, *cend;
2495 unsigned clen;
2496
2497 if (!HLPFILE_FindSubFile(hlpfile, "|CONTEXT", &cbuf, &cend))
2498 {WINE_WARN("context0\n"); return FALSE;}
2499
2500 clen = cend - cbuf;
2501 hlpfile->Context = HeapAlloc(GetProcessHeap(), 0, clen);
2502 if (!hlpfile->Context) return FALSE;
2503 memcpy(hlpfile->Context, cbuf, clen);
2504
2505 return TRUE;
2506 }
2507
2508 /***********************************************************************
2509 *
2510 * HLPFILE_GetKeywords
2511 */
2512 static BOOL HLPFILE_GetKeywords(HLPFILE *hlpfile)
2513 {
2514 BYTE *cbuf, *cend;
2515 unsigned clen;
2516
2517 if (!HLPFILE_FindSubFile(hlpfile, "|KWBTREE", &cbuf, &cend)) return FALSE;
2518 clen = cend - cbuf;
2519 hlpfile->kwbtree = HeapAlloc(GetProcessHeap(), 0, clen);
2520 if (!hlpfile->kwbtree) return FALSE;
2521 memcpy(hlpfile->kwbtree, cbuf, clen);
2522
2523 if (!HLPFILE_FindSubFile(hlpfile, "|KWDATA", &cbuf, &cend))
2524 {
2525 WINE_ERR("corrupted help file: kwbtree present but kwdata absent\n");
2526 HeapFree(GetProcessHeap(), 0, hlpfile->kwbtree);
2527 return FALSE;
2528 }
2529 clen = cend - cbuf;
2530 hlpfile->kwdata = HeapAlloc(GetProcessHeap(), 0, clen);
2531 if (!hlpfile->kwdata)
2532 {
2533 HeapFree(GetProcessHeap(), 0, hlpfile->kwdata);
2534 return FALSE;
2535 }
2536 memcpy(hlpfile->kwdata, cbuf, clen);
2537
2538 return TRUE;
2539 }
2540
2541 /***********************************************************************
2542 *
2543 * HLPFILE_GetMap
2544 */
2545 static BOOL HLPFILE_GetMap(HLPFILE *hlpfile)
2546 {
2547 BYTE *cbuf, *cend;
2548 unsigned entries, i;
2549
2550 if (!HLPFILE_FindSubFile(hlpfile, "|CTXOMAP", &cbuf, &cend))
2551 {WINE_WARN("no map section\n"); return FALSE;}
2552
2553 entries = GET_USHORT(cbuf, 9);
2554 hlpfile->Map = HeapAlloc(GetProcessHeap(), 0, entries * sizeof(HLPFILE_MAP));
2555 if (!hlpfile->Map) return FALSE;
2556 hlpfile->wMapLen = entries;
2557 for (i = 0; i < entries; i++)
2558 {
2559 hlpfile->Map[i].lMap = GET_UINT(cbuf+11,i*8);
2560 hlpfile->Map[i].offset = GET_UINT(cbuf+11,i*8+4);
2561 }
2562 return TRUE;
2563 }
2564
2565 /***********************************************************************
2566 *
2567 * DeleteMacro
2568 */
2569 static void HLPFILE_DeleteMacro(HLPFILE_MACRO* macro)
2570 {
2571 HLPFILE_MACRO* next;
2572
2573 while (macro)
2574 {
2575 next = macro->next;
2576 HeapFree(GetProcessHeap(), 0, macro);
2577 macro = next;
2578 }
2579 }
2580
2581 /***********************************************************************
2582 *
2583 * DeletePage
2584 */
2585 static void HLPFILE_DeletePage(HLPFILE_PAGE* page)
2586 {
2587 HLPFILE_PAGE* next;
2588
2589 while (page)
2590 {
2591 next = page->next;
2592 HLPFILE_DeleteMacro(page->first_macro);
2593 HeapFree(GetProcessHeap(), 0, page);
2594 page = next;
2595 }
2596 }
2597
2598 /***********************************************************************
2599 *
2600 * HLPFILE_FreeHlpFile
2601 */
2602 void HLPFILE_FreeHlpFile(HLPFILE* hlpfile)
2603 {
2604 unsigned i;
2605
2606 if (!hlpfile || --hlpfile->wRefCount > 0) return;
2607
2608 if (hlpfile->next) hlpfile->next->prev = hlpfile->prev;
2609 if (hlpfile->prev) hlpfile->prev->next = hlpfile->next;
2610 else first_hlpfile = hlpfile->next;
2611
2612 if (hlpfile->numFonts)
2613 {
2614 for (i = 0; i < hlpfile->numFonts; i++)
2615 {
2616 DeleteObject(hlpfile->fonts[i].hFont);
2617 }
2618 HeapFree(GetProcessHeap(), 0, hlpfile->fonts);
2619 }
2620
2621 if (hlpfile->numBmps)
2622 {
2623 for (i = 0; i < hlpfile->numBmps; i++)
2624 {
2625 DeleteObject(hlpfile->bmps[i]);
2626 }
2627 HeapFree(GetProcessHeap(), 0, hlpfile->bmps);
2628 }
2629
2630 HLPFILE_DeletePage(hlpfile->first_page);
2631 HLPFILE_DeleteMacro(hlpfile->first_macro);
2632
2633 DestroyIcon(hlpfile->hIcon);
2634 if (hlpfile->numWindows) HeapFree(GetProcessHeap(), 0, hlpfile->windows);
2635 HeapFree(GetProcessHeap(), 0, hlpfile->Context);
2636 HeapFree(GetProcessHeap(), 0, hlpfile->Map);
2637 HeapFree(GetProcessHeap(), 0, hlpfile->lpszTitle);
2638 HeapFree(GetProcessHeap(), 0, hlpfile->lpszCopyright);
2639 HeapFree(GetProcessHeap(), 0, hlpfile->file_buffer);
2640 HeapFree(GetProcessHeap(), 0, hlpfile->phrases_offsets);
2641 HeapFree(GetProcessHeap(), 0, hlpfile->phrases_buffer);
2642 HeapFree(GetProcessHeap(), 0, hlpfile->topic_map);
2643 HeapFree(GetProcessHeap(), 0, hlpfile->help_on_file);
2644 HeapFree(GetProcessHeap(), 0, hlpfile);
2645 }
useful hacks and other patches not (yet) suitable for mainline