OpenTTD: src/newgrf_text.cpp Source File

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newgrf_text.cpp
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1 /* $Id: newgrf_text.cpp 26713 2014-08-03 11:59:07Z frosch $ */
2
3 /*
4 * This file is part of OpenTTD.
5 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
6 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
8 */
9
20 #include "stdafx.h"
21 #include "newgrf.h"
22 #include "strings_func.h"
23 #include "newgrf_storage.h"
24 #include "newgrf_text.h"
25 #include "newgrf_cargo.h"
26 #include "string_func.h"
27 #include "date_type.h"
28 #include "debug.h"
29 #include "core/alloc_type.hpp"
30 #include "core/smallmap_type.hpp"
31 #include "language.h"
32
33 #include "table/strings.h"
34 #include "table/control_codes.h"
35
36 #include "safeguards.h"
37
38 #define GRFTAB 28
39 #define TABSIZE 11
40
46 enum GRFBaseLanguages {
47 GRFLB_AMERICAN = 0x01,
48 GRFLB_ENGLISH = 0x02,
49 GRFLB_GERMAN = 0x04,
50 GRFLB_FRENCH = 0x08,
51 GRFLB_SPANISH = 0x10,
52 GRFLB_GENERIC = 0x80,
53 };
54
55 enum GRFExtendedLanguages {
56 GRFLX_AMERICAN = 0x00,
57 GRFLX_ENGLISH = 0x01,
58 GRFLX_GERMAN = 0x02,
59 GRFLX_FRENCH = 0x03,
60 GRFLX_SPANISH = 0x04,
61 GRFLX_UNSPECIFIED = 0x7F,
62 };
63
69 struct GRFText {
70 public:
81 static GRFText *New(byte langid, const char *text, size_t len)
82 {
83 return new (len) GRFText(langid, text, len);
84 }
85
91 static GRFText *Copy(GRFText *orig)
92 {
93 return GRFText::New(orig->langid, orig->text, orig->len);
94 }
95
101 void *operator new(size_t size)
102 {
103 NOT_REACHED();
104 }
105
110 void operator delete(void *p)
111 {
112 free(p);
113 }
114 private:
121 GRFText(byte langid_, const char *text_, size_t len_) : next(NULL), len(len_), langid(langid_)
122 {
123 /* We need to use memcpy instead of strcpy due to
124 * the possibility of "choice lists" and therefore
125 * intermediate string terminators. */
126 memcpy(this->text, text_, len);
127 }
128
135 void *operator new(size_t size, size_t extra)
136 {
137 return MallocT<byte>(size + extra);
138 }
139
140 public:
141 GRFText *next;
142 size_t len;
143 byte langid;
144 char text[];
145 };
146
147
153 struct GRFTextEntry {
154 uint32 grfid;
155 uint16 stringid;
156 StringID def_string;
157 GRFText *textholder;
158 };
159
160
161 static uint _num_grf_texts = 0;
162 static GRFTextEntry _grf_text[(1 << TABSIZE) * 3];
163 static byte _currentLangID = GRFLX_ENGLISH;
164
171 int LanguageMap::GetMapping(int newgrf_id, bool gender) const
172 {
173 const SmallVector<Mapping, 1> &map = gender ? this->gender_map : this->case_map;
174 for (const Mapping *m = map.Begin(); m != map.End(); m++) {
175 if (m->newgrf_id == newgrf_id) return m->openttd_id;
176 }
177 return -1;
178 }
179
186 int LanguageMap::GetReverseMapping(int openttd_id, bool gender) const
187 {
188 const SmallVector<Mapping, 1> &map = gender ? this->gender_map : this->case_map;
189 for (const Mapping *m = map.Begin(); m != map.End(); m++) {
190 if (m->openttd_id == openttd_id) return m->newgrf_id;
191 }
192 return -1;
193 }
194
196 struct UnmappedChoiceList : ZeroedMemoryAllocator {
198 ~UnmappedChoiceList()
199 {
200 for (SmallPair<byte, char *> *p = this->strings.Begin(); p < this->strings.End(); p++) {
201 free(p->second);
202 }
203 }
204
211 UnmappedChoiceList(StringControlCode type, char *old_d, int offset) :
212 type(type), old_d(old_d), offset(offset)
213 {
214 }
215
216 StringControlCode type;
217 char *old_d;
218 int offset;
219
221 SmallMap<byte, char *> strings;
222
228 char *Flush(const LanguageMap *lm)
229 {
230 if (!this->strings.Contains(0)) {
231 /* In case of a (broken) NewGRF without a default,
232 * assume an empty string. */
233 grfmsg(1, "choice list misses default value");
234 this->strings[0] = stredup("");
235 }
236
237 char *d = old_d;
238 if (lm == NULL) {
239 /* In case there is no mapping, just ignore everything but the default.
240 * A probable cause for this happening is when the language file has
241 * been removed by the user and as such no mapping could be made. */
242 size_t len = strlen(this->strings[0]);
243 memcpy(d, this->strings[0], len);
244 return d + len;
245 }
246
247 d += Utf8Encode(d, this->type);
248
249 if (this->type == SCC_SWITCH_CASE) {
250 /*
251 * Format for case switch:
252 * <NUM CASES> <CASE1> <LEN1> <STRING1> <CASE2> <LEN2> <STRING2> <CASE3> <LEN3> <STRING3> <STRINGDEFAULT>
253 * Each LEN is printed using 2 bytes in big endian order.
254 */
255
256 /* "<NUM CASES>" */
257 int count = 0;
258 for (uint8 i = 0; i < _current_language->num_cases; i++) {
259 /* Count the ones we have a mapped string for. */
260 if (this->strings.Contains(lm->GetReverseMapping(i, false))) count++;
261 }
262 *d++ = count;
263
264 for (uint8 i = 0; i < _current_language->num_cases; i++) {
265 /* Resolve the string we're looking for. */
266 int idx = lm->GetReverseMapping(i, false);
267 if (!this->strings.Contains(idx)) continue;
268 char *str = this->strings[idx];
269
270 /* "<CASEn>" */
271 *d++ = i + 1;
272
273 /* "<LENn>" */
274 size_t len = strlen(str) + 1;
275 *d++ = GB(len, 8, 8);
276 *d++ = GB(len, 0, 8);
277
278 /* "<STRINGn>" */
279 memcpy(d, str, len);
280 d += len;
281 }
282
283 /* "<STRINGDEFAULT>" */
284 size_t len = strlen(this->strings[0]) + 1;
285 memcpy(d, this->strings[0], len);
286 d += len;
287 } else {
288 if (this->type == SCC_PLURAL_LIST) {
289 *d++ = lm->plural_form;
290 }
291
292 /*
293 * Format for choice list:
294 * <OFFSET> <NUM CHOICES> <LENs> <STRINGs>
295 */
296
297 /* "<OFFSET>" */
298 *d++ = this->offset - 0x80;
299
300 /* "<NUM CHOICES>" */
301 int count = (this->type == SCC_GENDER_LIST ? _current_language->num_genders : LANGUAGE_MAX_PLURAL_FORMS);
302 *d++ = count;
303
304 /* "<LENs>" */
305 for (int i = 0; i < count; i++) {
306 int idx = (this->type == SCC_GENDER_LIST ? lm->GetReverseMapping(i, true) : i + 1);
307 const char *str = this->strings[this->strings.Contains(idx) ? idx : 0];
308 size_t len = strlen(str) + 1;
309 if (len > 0xFF) grfmsg(1, "choice list string is too long");
310 *d++ = GB(len, 0, 8);
311 }
312
313 /* "<STRINGs>" */
314 for (int i = 0; i < count; i++) {
315 int idx = (this->type == SCC_GENDER_LIST ? lm->GetReverseMapping(i, true) : i + 1);
316 const char *str = this->strings[this->strings.Contains(idx) ? idx : 0];
317 /* Limit the length of the string we copy to 0xFE. The length is written above
318 * as a byte and we need room for the final '\0'. */
319 size_t len = min<size_t>(0xFE, strlen(str));
320 memcpy(d, str, len);
321 d += len;
322 *d++ = '\0';
323 }
324 }
325 return d;
326 }
327 };
328
339 char *TranslateTTDPatchCodes(uint32 grfid, uint8 language_id, bool allow_newlines, const char *str, int *olen, StringControlCode byte80)
340 {
341 char *tmp = MallocT<char>(strlen(str) * 10 + 1); // Allocate space to allow for expansion
342 char *d = tmp;
343 bool unicode = false;
344 WChar c;
345 size_t len = Utf8Decode(&c, str);
346
347 /* Helper variable for a possible (string) mapping. */
348 UnmappedChoiceList *mapping = NULL;
349
350 if (c == NFO_UTF8_IDENTIFIER) {
351 unicode = true;
352 str += len;
353 }
354
355 for (;;) {
356 if (unicode && Utf8EncodedCharLen(*str) != 0) {
357 c = Utf8Consume(&str);
358 /* 'Magic' range of control codes. */
359 if (GB(c, 8, 8) == 0xE0) {
360 c = GB(c, 0, 8);
361 } else if (c >= 0x20) {
362 if (!IsValidChar(c, CS_ALPHANUMERAL)) c = '?';
363 d += Utf8Encode(d, c);
364 continue;
365 }
366 } else {
367 c = (byte)*str++;
368 }
369 if (c == '\0') break;
370
371 switch (c) {
372 case 0x01:
373 if (str[0] == '\0') goto string_end;
374 d += Utf8Encode(d, ' ');
375 str++;
376 break;
377 case 0x0A: break;
378 case 0x0D:
379 if (allow_newlines) {
380 *d++ = 0x0A;
381 } else {
382 grfmsg(1, "Detected newline in string that does not allow one");
383 }
384 break;
385 case 0x0E: d += Utf8Encode(d, SCC_TINYFONT); break;
386 case 0x0F: d += Utf8Encode(d, SCC_BIGFONT); break;
387 case 0x1F:
388 if (str[0] == '\0' || str[1] == '\0') goto string_end;
389 d += Utf8Encode(d, ' ');
390 str += 2;
391 break;
392 case 0x7B:
393 case 0x7C:
394 case 0x7D:
395 case 0x7E:
396 case 0x7F: d += Utf8Encode(d, SCC_NEWGRF_PRINT_DWORD_SIGNED + c - 0x7B); break;
397 case 0x80: d += Utf8Encode(d, byte80); break;
398 case 0x81: {
399 if (str[0] == '\0' || str[1] == '\0') goto string_end;
400 StringID string;
401 string = ((uint8)*str++);
402 string |= ((uint8)*str++) << 8;
403 d += Utf8Encode(d, SCC_NEWGRF_STRINL);
404 d += Utf8Encode(d, MapGRFStringID(grfid, string));
405 break;
406 }
407 case 0x82:
408 case 0x83:
409 case 0x84: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_DATE_LONG + c - 0x82); break;
410 case 0x85: d += Utf8Encode(d, SCC_NEWGRF_DISCARD_WORD); break;
411 case 0x86: d += Utf8Encode(d, SCC_NEWGRF_ROTATE_TOP_4_WORDS); break;
412 case 0x87: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_VOLUME_LONG); break;
413 case 0x88: d += Utf8Encode(d, SCC_BLUE); break;
414 case 0x89: d += Utf8Encode(d, SCC_SILVER); break;
415 case 0x8A: d += Utf8Encode(d, SCC_GOLD); break;
416 case 0x8B: d += Utf8Encode(d, SCC_RED); break;
417 case 0x8C: d += Utf8Encode(d, SCC_PURPLE); break;
418 case 0x8D: d += Utf8Encode(d, SCC_LTBROWN); break;
419 case 0x8E: d += Utf8Encode(d, SCC_ORANGE); break;
420 case 0x8F: d += Utf8Encode(d, SCC_GREEN); break;
421 case 0x90: d += Utf8Encode(d, SCC_YELLOW); break;
422 case 0x91: d += Utf8Encode(d, SCC_DKGREEN); break;
423 case 0x92: d += Utf8Encode(d, SCC_CREAM); break;
424 case 0x93: d += Utf8Encode(d, SCC_BROWN); break;
425 case 0x94: d += Utf8Encode(d, SCC_WHITE); break;
426 case 0x95: d += Utf8Encode(d, SCC_LTBLUE); break;
427 case 0x96: d += Utf8Encode(d, SCC_GRAY); break;
428 case 0x97: d += Utf8Encode(d, SCC_DKBLUE); break;
429 case 0x98: d += Utf8Encode(d, SCC_BLACK); break;
430 case 0x9A: {
431 int code = *str++;
432 switch (code) {
433 case 0x00: goto string_end;
434 case 0x01: d += Utf8Encode(d, SCC_NEWGRF_PRINT_QWORD_CURRENCY); break;
435 /* 0x02: ignore next colour byte is not supported. It works on the final
436 * string and as such hooks into the string drawing routine. At that
437 * point many things already happened, such as splitting up of strings
438 * when drawn over multiple lines or right-to-left translations, which
439 * make the behaviour peculiar, e.g. only happening at specific width
440 * of windows. Or we need to add another pass over the string to just
441 * support this. As such it is not implemented in OpenTTD. */
442 case 0x03: {
443 if (str[0] == '\0' || str[1] == '\0') goto string_end;
444 uint16 tmp = ((uint8)*str++);
445 tmp |= ((uint8)*str++) << 8;
446 d += Utf8Encode(d, SCC_NEWGRF_PUSH_WORD);
447 d += Utf8Encode(d, tmp);
448 break;
449 }
450 case 0x04:
451 if (str[0] == '\0') goto string_end;
452 d += Utf8Encode(d, SCC_NEWGRF_UNPRINT);
453 d += Utf8Encode(d, *str++);
454 break;
455 case 0x06: d += Utf8Encode(d, SCC_NEWGRF_PRINT_BYTE_HEX); break;
456 case 0x07: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_HEX); break;
457 case 0x08: d += Utf8Encode(d, SCC_NEWGRF_PRINT_DWORD_HEX); break;
458 /* 0x09, 0x0A are TTDPatch internal use only string codes. */
459 case 0x0B: d += Utf8Encode(d, SCC_NEWGRF_PRINT_QWORD_HEX); break;
460 case 0x0C: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_STATION_NAME); break;
461 case 0x0D: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_WEIGHT_LONG); break;
462 case 0x0E:
463 case 0x0F: {
464 if (str[0] == '\0') goto string_end;
465 const LanguageMap *lm = LanguageMap::GetLanguageMap(grfid, language_id);
466 int index = *str++;
467 int mapped = lm != NULL ? lm->GetMapping(index, code == 0x0E) : -1;
468 if (mapped >= 0) {
469 d += Utf8Encode(d, code == 0x0E ? SCC_GENDER_INDEX : SCC_SET_CASE);
470 d += Utf8Encode(d, code == 0x0E ? mapped : mapped + 1);
471 }
472 break;
473 }
474
475 case 0x10:
476 case 0x11:
477 if (str[0] == '\0') goto string_end;
478 if (mapping == NULL) {
479 if (code == 0x10) str++; // Skip the index
480 grfmsg(1, "choice list %s marker found when not expected", code == 0x10 ? "next" : "default");
481 break;
482 } else {
483 /* Terminate the previous string. */
484 *d = '\0';
485 int index = (code == 0x10 ? *str++ : 0);
486 if (mapping->strings.Contains(index)) {
487 grfmsg(1, "duplicate choice list string, ignoring");
488 d++;
489 } else {
490 d = mapping->strings[index] = MallocT<char>(strlen(str) * 10 + 1);
491 }
492 }
493 break;
494
495 case 0x12:
496 if (mapping == NULL) {
497 grfmsg(1, "choice list end marker found when not expected");
498 } else {
499 /* Terminate the previous string. */
500 *d = '\0';
501
502 /* Now we can start flushing everything and clean everything up. */
503 d = mapping->Flush(LanguageMap::GetLanguageMap(grfid, language_id));
504 delete mapping;
505 mapping = NULL;
506 }
507 break;
508
509 case 0x13:
510 case 0x14:
511 case 0x15:
512 if (str[0] == '\0') goto string_end;
513 if (mapping != NULL) {
514 grfmsg(1, "choice lists can't be stacked, it's going to get messy now...");
515 if (code != 0x14) str++;
516 } else {
517 static const StringControlCode mp[] = { SCC_GENDER_LIST, SCC_SWITCH_CASE, SCC_PLURAL_LIST };
518 mapping = new UnmappedChoiceList(mp[code - 0x13], d, code == 0x14 ? 0 : *str++);
519 }
520 break;
521
522 case 0x16:
523 case 0x17:
524 case 0x18:
525 case 0x19:
526 case 0x1A:
527 case 0x1B:
528 case 0x1C:
529 case 0x1D:
530 d += Utf8Encode(d, SCC_NEWGRF_PRINT_DWORD_DATE_LONG + code - 0x16);
531 break;
532
533 default:
534 grfmsg(1, "missing handler for extended format code");
535 break;
536 }
537 break;
538 }
539
540 case 0x9E: d += Utf8Encode(d, 0x20AC); break; // Euro
541 case 0x9F: d += Utf8Encode(d, 0x0178); break; // Y with diaeresis
542 case 0xA0: d += Utf8Encode(d, SCC_UP_ARROW); break;
543 case 0xAA: d += Utf8Encode(d, SCC_DOWN_ARROW); break;
544 case 0xAC: d += Utf8Encode(d, SCC_CHECKMARK); break;
545 case 0xAD: d += Utf8Encode(d, SCC_CROSS); break;
546 case 0xAF: d += Utf8Encode(d, SCC_RIGHT_ARROW); break;
547 case 0xB4: d += Utf8Encode(d, SCC_TRAIN); break;
548 case 0xB5: d += Utf8Encode(d, SCC_LORRY); break;
549 case 0xB6: d += Utf8Encode(d, SCC_BUS); break;
550 case 0xB7: d += Utf8Encode(d, SCC_PLANE); break;
551 case 0xB8: d += Utf8Encode(d, SCC_SHIP); break;
552 case 0xB9: d += Utf8Encode(d, SCC_SUPERSCRIPT_M1); break;
553 case 0xBC: d += Utf8Encode(d, SCC_SMALL_UP_ARROW); break;
554 case 0xBD: d += Utf8Encode(d, SCC_SMALL_DOWN_ARROW); break;
555 default:
556 /* Validate any unhandled character */
557 if (!IsValidChar(c, CS_ALPHANUMERAL)) c = '?';
558 d += Utf8Encode(d, c);
559 break;
560 }
561 }
562
563 string_end:
564 if (mapping != NULL) {
565 grfmsg(1, "choice list was incomplete, the whole list is ignored");
566 delete mapping;
567 }
568
569 *d = '\0';
570 if (olen != NULL) *olen = d - tmp + 1;
571 tmp = ReallocT(tmp, d - tmp + 1);
572 return tmp;
573 }
574
580 void AddGRFTextToList(GRFText **list, GRFText *text_to_add)
581 {
582 GRFText **ptext, *text;
583
584 /* Loop through all languages and see if we can replace a string */
585 for (ptext = list; (text = *ptext) != NULL; ptext = &text->next) {
586 if (text->langid == text_to_add->langid) {
587 text_to_add->next = text->next;
588 *ptext = text_to_add;
589 delete text;
590 return;
591 }
592 }
593
594 /* If a string wasn't replaced, then we must append the new string */
595 *ptext = text_to_add;
596 }
597
607 void AddGRFTextToList(struct GRFText **list, byte langid, uint32 grfid, bool allow_newlines, const char *text_to_add)
608 {
609 int len;
610 char *translatedtext = TranslateTTDPatchCodes(grfid, langid, allow_newlines, text_to_add, &len);
611 GRFText *newtext = GRFText::New(langid, translatedtext, len);
612 free(translatedtext);
613
614 AddGRFTextToList(list, newtext);
615 }
616
623 void AddGRFTextToList(struct GRFText **list, const char *text_to_add)
624 {
625 AddGRFTextToList(list, GRFText::New(0x7F, text_to_add, strlen(text_to_add) + 1));
626 }
627
633 GRFText *DuplicateGRFText(GRFText *orig)
634 {
635 GRFText *newtext = NULL;
636 GRFText **ptext = &newtext;
637 for (; orig != NULL; orig = orig->next) {
638 *ptext = GRFText::Copy(orig);
639 ptext = &(*ptext)->next;
640 }
641 return newtext;
642 }
643
647 StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid_to_add, bool new_scheme, bool allow_newlines, const char *text_to_add, StringID def_string)
648 {
649 char *translatedtext;
650 uint id;
651
652 /* When working with the old language scheme (grf_version is less than 7) and
653 * English or American is among the set bits, simply add it as English in
654 * the new scheme, i.e. as langid = 1.
655 * If English is set, it is pretty safe to assume the translations are not
656 * actually translated.
657 */
658 if (!new_scheme) {
659 if (langid_to_add & (GRFLB_AMERICAN | GRFLB_ENGLISH)) {
660 langid_to_add = GRFLX_ENGLISH;
661 } else {
662 StringID ret = STR_EMPTY;
663 if (langid_to_add & GRFLB_GERMAN) ret = AddGRFString(grfid, stringid, GRFLX_GERMAN, true, allow_newlines, text_to_add, def_string);
664 if (langid_to_add & GRFLB_FRENCH) ret = AddGRFString(grfid, stringid, GRFLX_FRENCH, true, allow_newlines, text_to_add, def_string);
665 if (langid_to_add & GRFLB_SPANISH) ret = AddGRFString(grfid, stringid, GRFLX_SPANISH, true, allow_newlines, text_to_add, def_string);
666 return ret;
667 }
668 }
669
670 for (id = 0; id < _num_grf_texts; id++) {
671 if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
672 break;
673 }
674 }
675
676 /* Too many strings allocated, return empty */
677 if (id == lengthof(_grf_text)) return STR_EMPTY;
678
679 int len;
680 translatedtext = TranslateTTDPatchCodes(grfid, langid_to_add, allow_newlines, text_to_add, &len);
681
682 GRFText *newtext = GRFText::New(langid_to_add, translatedtext, len);
683
684 free(translatedtext);
685
686 /* If we didn't find our stringid and grfid in the list, allocate a new id */
687 if (id == _num_grf_texts) _num_grf_texts++;
688
689 if (_grf_text[id].textholder == NULL) {
690 _grf_text[id].grfid = grfid;
691 _grf_text[id].stringid = stringid;
692 _grf_text[id].def_string = def_string;
693 }
694 AddGRFTextToList(&_grf_text[id].textholder, newtext);
695
696 grfmsg(3, "Added 0x%X: grfid %08X string 0x%X lang 0x%X string '%s'", id, grfid, stringid, newtext->langid, newtext->text);
697
698 return (GRFTAB << TABSIZE) + id;
699 }
700
704 StringID GetGRFStringID(uint32 grfid, uint16 stringid)
705 {
706 for (uint id = 0; id < _num_grf_texts; id++) {
707 if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
708 return (GRFTAB << TABSIZE) + id;
709 }
710 }
711
712 return STR_UNDEFINED;
713 }
714
715
723 const char *GetGRFStringFromGRFText(const GRFText *text)
724 {
725 const char *default_text = NULL;
726
727 /* Search the list of lang-strings of this stringid for current lang */
728 for (; text != NULL; text = text->next) {
729 if (text->langid == _currentLangID) return text->text;
730
731 /* If the current string is English or American, set it as the
732 * fallback language if the specific language isn't available. */
733 if (text->langid == GRFLX_UNSPECIFIED || (default_text == NULL && (text->langid == GRFLX_ENGLISH || text->langid == GRFLX_AMERICAN))) {
734 default_text = text->text;
735 }
736 }
737
738 return default_text;
739 }
740
744 const char *GetGRFStringPtr(uint16 stringid)
745 {
746 assert(_grf_text[stringid].grfid != 0);
747
748 const char *str = GetGRFStringFromGRFText(_grf_text[stringid].textholder);
749 if (str != NULL) return str;
750
751 /* Use the default string ID if the fallback string isn't available */
752 return GetStringPtr(_grf_text[stringid].def_string);
753 }
754
763 void SetCurrentGrfLangID(byte language_id)
764 {
765 _currentLangID = language_id;
766 }
767
768 bool CheckGrfLangID(byte lang_id, byte grf_version)
769 {
770 if (grf_version < 7) {
771 switch (_currentLangID) {
772 case GRFLX_GERMAN: return (lang_id & GRFLB_GERMAN) != 0;
773 case GRFLX_FRENCH: return (lang_id & GRFLB_FRENCH) != 0;
774 case GRFLX_SPANISH: return (lang_id & GRFLB_SPANISH) != 0;
775 default: return (lang_id & (GRFLB_ENGLISH | GRFLB_AMERICAN)) != 0;
776 }
777 }
778
779 return (lang_id == _currentLangID || lang_id == GRFLX_UNSPECIFIED);
780 }
781
786 void CleanUpGRFText(GRFText *grftext)
787 {
788 while (grftext != NULL) {
789 GRFText *grftext2 = grftext->next;
790 delete grftext;
791 grftext = grftext2;
792 }
793 }
794
799 void CleanUpStrings()
800 {
801 uint id;
802
803 for (id = 0; id < _num_grf_texts; id++) {
804 CleanUpGRFText(_grf_text[id].textholder);
805 _grf_text[id].grfid = 0;
806 _grf_text[id].stringid = 0;
807 _grf_text[id].textholder = NULL;
808 }
809
810 _num_grf_texts = 0;
811 }
812
813 struct TextRefStack {
814 byte stack[0x30];
815 byte position;
816 const GRFFile *grffile;
817 bool used;
818
819 TextRefStack() : position(0), grffile(NULL), used(false) {}
820
821 TextRefStack(const TextRefStack &stack) :
822 position(stack.position),
823 grffile(stack.grffile),
824 used(stack.used)
825 {
826 memcpy(this->stack, stack.stack, sizeof(this->stack));
827 }
828
829 uint8 PopUnsignedByte() { assert(this->position < lengthof(this->stack)); return this->stack[this->position++]; }
830 int8 PopSignedByte() { return (int8)this->PopUnsignedByte(); }
831
832 uint16 PopUnsignedWord()
833 {
834 uint16 val = this->PopUnsignedByte();
835 return val | (this->PopUnsignedByte() << 8);
836 }
837 int16 PopSignedWord() { return (int32)this->PopUnsignedWord(); }
838
839 uint32 PopUnsignedDWord()
840 {
841 uint32 val = this->PopUnsignedWord();
842 return val | (this->PopUnsignedWord() << 16);
843 }
844 int32 PopSignedDWord() { return (int32)this->PopUnsignedDWord(); }
845
846 uint64 PopUnsignedQWord()
847 {
848 uint64 val = this->PopUnsignedDWord();
849 return val | (((uint64)this->PopUnsignedDWord()) << 32);
850 }
851 int64 PopSignedQWord() { return (int64)this->PopUnsignedQWord(); }
852
854 void RotateTop4Words()
855 {
856 byte tmp[2];
857 for (int i = 0; i < 2; i++) tmp[i] = this->stack[this->position + i + 6];
858 for (int i = 5; i >= 0; i--) this->stack[this->position + i + 2] = this->stack[this->position + i];
859 for (int i = 0; i < 2; i++) this->stack[this->position + i] = tmp[i];
860 }
861
862 void PushWord(uint16 word)
863 {
864 if (this->position >= 2) {
865 this->position -= 2;
866 } else {
867 for (int i = lengthof(stack) - 1; i >= this->position + 2; i--) {
868 this->stack[i] = this->stack[i - 2];
869 }
870 }
871 this->stack[this->position] = GB(word, 0, 8);
872 this->stack[this->position + 1] = GB(word, 8, 8);
873 }
874
875 void ResetStack(const GRFFile *grffile)
876 {
877 assert(grffile != NULL);
878 this->position = 0;
879 this->grffile = grffile;
880 this->used = true;
881 }
882
883 void RewindStack() { this->position = 0; }
884 };
885
887 static TextRefStack _newgrf_textrefstack;
888
893 bool UsingNewGRFTextStack()
894 {
895 return _newgrf_textrefstack.used;
896 }
897
902 struct TextRefStack *CreateTextRefStackBackup()
903 {
904 return new TextRefStack(_newgrf_textrefstack);
905 }
906
911 void RestoreTextRefStackBackup(struct TextRefStack *backup)
912 {
913 _newgrf_textrefstack = *backup;
914 delete backup;
915 }
916
935 void StartTextRefStackUsage(const GRFFile *grffile, byte numEntries, const uint32 *values)
936 {
937 extern TemporaryStorageArray<int32, 0x110> _temp_store;
938
939 _newgrf_textrefstack.ResetStack(grffile);
940
941 byte *p = _newgrf_textrefstack.stack;
942 for (uint i = 0; i < numEntries; i++) {
943 uint32 value = values != NULL ? values[i] : _temp_store.GetValue(0x100 + i);
944 for (uint j = 0; j < 32; j += 8) {
945 *p = GB(value, j, 8);
946 p++;
947 }
948 }
949 }
950
952 void StopTextRefStackUsage()
953 {
954 _newgrf_textrefstack.used = false;
955 }
956
957 void RewindTextRefStack()
958 {
959 _newgrf_textrefstack.RewindStack();
960 }
961
972 uint RemapNewGRFStringControlCode(uint scc, char *buf_start, char **buff, const char **str, int64 *argv, uint argv_size, bool modify_argv)
973 {
974 switch (scc) {
975 default: break;
976
977 case SCC_NEWGRF_PRINT_DWORD_SIGNED:
978 case SCC_NEWGRF_PRINT_WORD_SIGNED:
979 case SCC_NEWGRF_PRINT_BYTE_SIGNED:
980 case SCC_NEWGRF_PRINT_WORD_UNSIGNED:
981 case SCC_NEWGRF_PRINT_BYTE_HEX:
982 case SCC_NEWGRF_PRINT_WORD_HEX:
983 case SCC_NEWGRF_PRINT_DWORD_HEX:
984 case SCC_NEWGRF_PRINT_QWORD_HEX:
985 case SCC_NEWGRF_PRINT_DWORD_CURRENCY:
986 case SCC_NEWGRF_PRINT_QWORD_CURRENCY:
987 case SCC_NEWGRF_PRINT_WORD_STRING_ID:
988 case SCC_NEWGRF_PRINT_WORD_DATE_LONG:
989 case SCC_NEWGRF_PRINT_DWORD_DATE_LONG:
990 case SCC_NEWGRF_PRINT_WORD_DATE_SHORT:
991 case SCC_NEWGRF_PRINT_DWORD_DATE_SHORT:
992 case SCC_NEWGRF_PRINT_WORD_SPEED:
993 case SCC_NEWGRF_PRINT_WORD_VOLUME_LONG:
994 case SCC_NEWGRF_PRINT_WORD_VOLUME_SHORT:
995 case SCC_NEWGRF_PRINT_WORD_WEIGHT_LONG:
996 case SCC_NEWGRF_PRINT_WORD_WEIGHT_SHORT:
997 case SCC_NEWGRF_PRINT_WORD_POWER:
998 case SCC_NEWGRF_PRINT_WORD_STATION_NAME:
999 if (argv_size < 1) {
1000 DEBUG(misc, 0, "Too many NewGRF string parameters.");
1001 return 0;
1002 }
1003 break;
1004
1005 case SCC_NEWGRF_PRINT_WORD_CARGO_LONG:
1006 case SCC_NEWGRF_PRINT_WORD_CARGO_SHORT:
1007 case SCC_NEWGRF_PRINT_WORD_CARGO_TINY:
1008 if (argv_size < 2) {
1009 DEBUG(misc, 0, "Too many NewGRF string parameters.");
1010 return 0;
1011 }
1012 break;
1013 }
1014
1015 if (_newgrf_textrefstack.used && modify_argv) {
1016 switch (scc) {
1017 default: NOT_REACHED();
1018 case SCC_NEWGRF_PRINT_BYTE_SIGNED: *argv = _newgrf_textrefstack.PopSignedByte(); break;
1019 case SCC_NEWGRF_PRINT_QWORD_CURRENCY: *argv = _newgrf_textrefstack.PopSignedQWord(); break;
1020
1021 case SCC_NEWGRF_PRINT_DWORD_CURRENCY:
1022 case SCC_NEWGRF_PRINT_DWORD_SIGNED: *argv = _newgrf_textrefstack.PopSignedDWord(); break;
1023
1024 case SCC_NEWGRF_PRINT_BYTE_HEX: *argv = _newgrf_textrefstack.PopUnsignedByte(); break;
1025 case SCC_NEWGRF_PRINT_QWORD_HEX: *argv = _newgrf_textrefstack.PopUnsignedQWord(); break;
1026
1027 case SCC_NEWGRF_PRINT_WORD_SPEED:
1028 case SCC_NEWGRF_PRINT_WORD_VOLUME_LONG:
1029 case SCC_NEWGRF_PRINT_WORD_VOLUME_SHORT:
1030 case SCC_NEWGRF_PRINT_WORD_SIGNED: *argv = _newgrf_textrefstack.PopSignedWord(); break;
1031
1032 case SCC_NEWGRF_PRINT_WORD_HEX:
1033 case SCC_NEWGRF_PRINT_WORD_WEIGHT_LONG:
1034 case SCC_NEWGRF_PRINT_WORD_WEIGHT_SHORT:
1035 case SCC_NEWGRF_PRINT_WORD_POWER:
1036 case SCC_NEWGRF_PRINT_WORD_STATION_NAME:
1037 case SCC_NEWGRF_PRINT_WORD_UNSIGNED: *argv = _newgrf_textrefstack.PopUnsignedWord(); break;
1038
1039 case SCC_NEWGRF_PRINT_DWORD_DATE_LONG:
1040 case SCC_NEWGRF_PRINT_DWORD_DATE_SHORT:
1041 case SCC_NEWGRF_PRINT_DWORD_HEX: *argv = _newgrf_textrefstack.PopUnsignedDWord(); break;
1042
1043 case SCC_NEWGRF_PRINT_WORD_DATE_LONG:
1044 case SCC_NEWGRF_PRINT_WORD_DATE_SHORT: *argv = _newgrf_textrefstack.PopUnsignedWord() + DAYS_TILL_ORIGINAL_BASE_YEAR; break;
1045
1046 case SCC_NEWGRF_DISCARD_WORD: _newgrf_textrefstack.PopUnsignedWord(); break;
1047
1048 case SCC_NEWGRF_ROTATE_TOP_4_WORDS: _newgrf_textrefstack.RotateTop4Words(); break;
1049 case SCC_NEWGRF_PUSH_WORD: _newgrf_textrefstack.PushWord(Utf8Consume(str)); break;
1050 case SCC_NEWGRF_UNPRINT: *buff = max(*buff - Utf8Consume(str), buf_start); break;
1051
1052 case SCC_NEWGRF_PRINT_WORD_CARGO_LONG:
1053 case SCC_NEWGRF_PRINT_WORD_CARGO_SHORT:
1054 case SCC_NEWGRF_PRINT_WORD_CARGO_TINY:
1055 argv[0] = GetCargoTranslation(_newgrf_textrefstack.PopUnsignedWord(), _newgrf_textrefstack.grffile);
1056 argv[1] = _newgrf_textrefstack.PopUnsignedWord();
1057 break;
1058
1059 case SCC_NEWGRF_PRINT_WORD_STRING_ID:
1060 *argv = MapGRFStringID(_newgrf_textrefstack.grffile->grfid, _newgrf_textrefstack.PopUnsignedWord());
1061 break;
1062 }
1063 } else {
1064 /* Consume additional parameter characters */
1065 switch (scc) {
1066 default: break;
1067
1068 case SCC_NEWGRF_PUSH_WORD:
1069 case SCC_NEWGRF_UNPRINT:
1070 Utf8Consume(str);
1071 break;
1072 }
1073 }
1074
1075 switch (scc) {
1076 default: NOT_REACHED();
1077 case SCC_NEWGRF_PRINT_DWORD_SIGNED:
1078 case SCC_NEWGRF_PRINT_WORD_SIGNED:
1079 case SCC_NEWGRF_PRINT_BYTE_SIGNED:
1080 case SCC_NEWGRF_PRINT_WORD_UNSIGNED:
1081 return SCC_COMMA;
1082
1083 case SCC_NEWGRF_PRINT_BYTE_HEX:
1084 case SCC_NEWGRF_PRINT_WORD_HEX:
1085 case SCC_NEWGRF_PRINT_DWORD_HEX:
1086 case SCC_NEWGRF_PRINT_QWORD_HEX:
1087 return SCC_HEX;
1088
1089 case SCC_NEWGRF_PRINT_DWORD_CURRENCY:
1090 case SCC_NEWGRF_PRINT_QWORD_CURRENCY:
1091 return SCC_CURRENCY_LONG;
1092
1093 case SCC_NEWGRF_PRINT_WORD_STRING_ID:
1094 return SCC_NEWGRF_PRINT_WORD_STRING_ID;
1095
1096 case SCC_NEWGRF_PRINT_WORD_DATE_LONG:
1097 case SCC_NEWGRF_PRINT_DWORD_DATE_LONG:
1098 return SCC_DATE_LONG;
1099
1100 case SCC_NEWGRF_PRINT_WORD_DATE_SHORT:
1101 case SCC_NEWGRF_PRINT_DWORD_DATE_SHORT:
1102 return SCC_DATE_SHORT;
1103
1104 case SCC_NEWGRF_PRINT_WORD_SPEED:
1105 return SCC_VELOCITY;
1106
1107 case SCC_NEWGRF_PRINT_WORD_VOLUME_LONG:
1108 return SCC_VOLUME_LONG;
1109
1110 case SCC_NEWGRF_PRINT_WORD_VOLUME_SHORT:
1111 return SCC_VOLUME_SHORT;
1112
1113 case SCC_NEWGRF_PRINT_WORD_WEIGHT_LONG:
1114 return SCC_WEIGHT_LONG;
1115
1116 case SCC_NEWGRF_PRINT_WORD_WEIGHT_SHORT:
1117 return SCC_WEIGHT_SHORT;
1118
1119 case SCC_NEWGRF_PRINT_WORD_POWER:
1120 return SCC_POWER;
1121
1122 case SCC_NEWGRF_PRINT_WORD_CARGO_LONG:
1123 return SCC_CARGO_LONG;
1124
1125 case SCC_NEWGRF_PRINT_WORD_CARGO_SHORT:
1126 return SCC_CARGO_SHORT;
1127
1128 case SCC_NEWGRF_PRINT_WORD_CARGO_TINY:
1129 return SCC_CARGO_TINY;
1130
1131 case SCC_NEWGRF_PRINT_WORD_STATION_NAME:
1132 return SCC_STATION_NAME;
1133
1134 case SCC_NEWGRF_DISCARD_WORD:
1135 case SCC_NEWGRF_ROTATE_TOP_4_WORDS:
1136 case SCC_NEWGRF_PUSH_WORD:
1137 case SCC_NEWGRF_UNPRINT:
1138 return 0;
1139 }
1140 }