aboutsummaryrefslogtreecommitdiff
path: root/engines/tinsel/detection.cpp
blob: 038c0c9625d2d60c7ae2b37b0212e8f1b5541d10 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program 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; either version 2
 * of the License, or (at your option) any later version.

 * This program 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.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#include "base/plugins.h"

#include "engines/advancedDetector.h"
#include "common/file.h"
#include "common/md5.h"
#include "common/savefile.h"

#include "tinsel/bmv.h"
#include "tinsel/cursor.h"
#include "tinsel/tinsel.h"
#include "tinsel/savescn.h"	// needed by TinselMetaEngine::listSaves

namespace Tinsel {

struct TinselGameDescription {
	ADGameDescription desc;

	int gameID;
	int gameType;
	uint32 features;
	uint16 version;
};

uint32 TinselEngine::getGameID() const {
	return _gameDescription->gameID;
}

uint32 TinselEngine::getFeatures() const {
	return _gameDescription->features;
}

Common::Language TinselEngine::getLanguage() const {
	return _gameDescription->desc.language;
}

Common::Platform TinselEngine::getPlatform() const {
	return _gameDescription->desc.platform;
}

uint16 TinselEngine::getVersion() const {
	return _gameDescription->version;
}

}

static const PlainGameDescriptor tinselGames[] = {
	{"tinsel", "Tinsel engine game"},
	{"dw", "Discworld"},
	{"dw2", "Discworld 2: Missing Presumed ...!?"},
	{0, 0}
};


namespace Tinsel {

using Common::GUIO_NONE;
using Common::GUIO_NOSPEECH;
using Common::GUIO_NOSFX;
using Common::GUIO_NOMUSIC;

static const TinselGameDescription gameDescriptions[] = {

	// Note: The following is the (hopefully) definitive list of version details:
	// TINSEL_V0: Used only by the Discworld 1 demo - this used a more primitive version
	//   of the Tinsel engine and graphics compression
	// TINSEL_V1: There were two versions of the Discworld 1 game - the first used .GRA
	//   files, and the second used .SCN files. The second also provided some fixes to
	//   various script bugs and coding errors, but is still considered TINSEL_V1,
	//   as both game versions work equally well with the newer code.
	// TINSEL_V2: The Discworld 2 game used this updated version of the Tinsel 1 engine,
	//   and as far as we know there aren't any variations of this engine.

	{	// Floppy Demo V0 from http://www.adventure-treff.de/specials/dl_demos.php
		{
			"dw",
			"Floppy Demo",
			AD_ENTRY1s("dw.gra", "ce1b57761ba705221bcf70955b827b97", 441192),
			//AD_ENTRY1s("dw.scn", "ccd72f02183d0e96b6e7d8df9492cda8", 23308),
			Common::EN_ANY,
			Common::kPlatformPC,
			ADGF_DEMO,
			GUIO_NOSPEECH | GUIO_NOSFX | GUIO_NOMUSIC
		},
		GID_DW1,
		0,
		GF_DEMO,
		TINSEL_V0,
	},

	{	// CD Demo V1 version, with *.gra files
		{
			"dw",
			"CD Demo",
			{
				{"dw.gra", 0, "ef5a2518c9e205f786f5a4526396e661", 781676},
				{"english.smp", 0, NULL, -1},
			},
			Common::EN_ANY,
			Common::kPlatformPC,
			ADGF_DEMO,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD,
		TINSEL_V1,
	},

	{	// Floppy V1 version, with *.gra files
		{
			"dw",
			"Floppy",
			AD_ENTRY1s("dw.gra", "c8808ccd988d603dd35dff42013ae7fd", 781656),
			Common::EN_ANY,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NOSPEECH
		},
		GID_DW1,
		0,
		GF_FLOPPY | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{	// CD V1 version, with *.gra files (same as the floppy one, with english.smp)
		{
			"dw",
			"CD",
			{
				{"dw.gra", 0, "c8808ccd988d603dd35dff42013ae7fd", 781656},
				{"english.smp", 0, NULL, -1},
			},
			Common::EN_ANY,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{	// Italian CD with english speech and *.gra files.
		// Note: It contains only italian subtitles, but inside english.txt
		{
			"dw",
			"CD",
			{
				{"dw.gra", 0, "c8808ccd988d603dd35dff42013ae7fd", 781656},
				{"english.txt", 0, "15f0703f85477d7fab4280bf938b61c1", 237774},
				{"english.smp", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::IT_ITA,
			Common::kPlatformPC,
			ADGF_DROPLANGUAGE,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{	// Multilingual CD with english speech and *.gra files.
		// Note: It contains no english subtitles.
		{
			"dw",
			"CD",
			{
				{"dw.gra", 0, "c8808ccd988d603dd35dff42013ae7fd", 781656},
				{"english.smp", 0, NULL, -1},
				{"french.txt", 0, NULL, -1},
				{"german.txt", 0, NULL, -1},
				{"italian.txt", 0, NULL, -1},
				{"spanish.txt", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::FR_FRA,
			Common::kPlatformPC,
			ADGF_DROPLANGUAGE,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{
		{
			"dw",
			"CD",
			{
				{"dw.gra", 0, "c8808ccd988d603dd35dff42013ae7fd", 781656},
				{"english.smp", 0, NULL, -1},
				{"french.txt", 0, NULL, -1},
				{"german.txt", 0, NULL, -1},
				{"italian.txt", 0, NULL, -1},
				{"spanish.txt", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::DE_DEU,
			Common::kPlatformPC,
			ADGF_DROPLANGUAGE,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},
	{
		{
			"dw",
			"CD",
			{
				{"dw.gra", 0, "c8808ccd988d603dd35dff42013ae7fd", 781656},
				{"english.smp", 0, NULL, -1},
				{"french.txt", 0, NULL, -1},
				{"german.txt", 0, NULL, -1},
				{"italian.txt", 0, NULL, -1},
				{"spanish.txt", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::IT_ITA,
			Common::kPlatformPC,
			ADGF_DROPLANGUAGE,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},
	{
		{
			"dw",
			"CD",
			{
				{"dw.gra", 0, "c8808ccd988d603dd35dff42013ae7fd", 781656},
				{"english.smp", 0, NULL, -1},
				{"french.txt", 0, NULL, -1},
				{"german.txt", 0, NULL, -1},
				{"italian.txt", 0, NULL, -1},
				{"spanish.txt", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::ES_ESP,
			Common::kPlatformPC,
			ADGF_DROPLANGUAGE,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{	// English CD v2
		{
			"dw",
			"CD",
			{
				{"dw.scn", 0, "70955425870c7720d6eebed903b2ef41", 776188},
				{"english.smp", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::EN_ANY,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{	// Hebrew CD v2
		{
			"dw",
			"CD",
			{
				{"dw.scn", 0, "759d1374b4f02af6d52fc07c96679936", 770780},
				{"english.smp", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::HB_ISR,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{	// Discworld PSX CD
		{
			"dw",
			"CD",
			{
				{"english.txt", 0, "7526cfc3a64e00f223795de476b4e2c9", 230326},
				{NULL, 0, NULL, 0}
			},
			Common::EN_ANY,
			Common::kPlatformPSX,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{	// multilanguage PSX demo
		{
			"dw",
			"CD demo",
			{
				{"french.txt", 0, "e7020d35f58d0d187052ac406d86cc87", 273914},
				{"german.txt", 0, "52f0a01e0ff0d340b02a36fd5109d705", 263942},
				{"italian.txt", 0, "15f0703f85477d7fab4280bf938b61c1", 239834},
				{"spanish.txt", 0, "c324170c3f1922c605c5cc09ba265aa5", 236702},
				{"english.txt", 0, "7526cfc3a64e00f223795de476b4e2c9", 230326},
				{NULL, 0, NULL, 0}
			},
			Common::EN_ANY,
			Common::kPlatformPSX,
			ADGF_DEMO,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_SCNFILES,
		TINSEL_V1,
	},

#if 0
	{	// English Saturn CD
		{
			"dw",
			"CD",
			{
				{"dw.scn", 0, "6803f293c88758057cc685b9437f7637", 382248},
				{"english.smp", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::EN_ANY,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},
#endif

#if 0
	{	// Mac multilanguage CD
		{
			"dw",
			"CD",
			{
				{"dw.scn", 0, "cfc40a8d5d476a1c9d3abf826fa46f8c", 1265532},
				{"english.smp", 0, NULL, -1},				
				{NULL, 0, NULL, 0}
			},
			Common::EN_ANY,
			Common::kPlatformMacintosh,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

#endif

	{	// German CD re-release "Neon Edition"
		// Note: This release has ENGLISH.TXT (with german content) instead of GERMAN.TXT
		{
			"dw",
			"CD",
			AD_ENTRY1s("dw.scn", "6182c7986eaec893c62fb6ea13a9f225", 774556),
			Common::DE_DEU,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW1,
		0,
		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
		TINSEL_V1,
	},

	{	// European/Australian Discworld 2 release
		{
			"dw2",
			"CD",
			{
				{"dw2.scn", 0, "c6d15ce9720a9d8fef06e6582dcf3f34", 103593},
				{"english1.smp", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::EN_GRB,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW2,
		0,
		GF_CD | GF_SCNFILES,
		TINSEL_V2,
	},

	{	// US Discworld 2 release
		{
			"dw2",
			"CD",
			{
				{"dw2.scn", 0, "c6d15ce9720a9d8fef06e6582dcf3f34", 103593},
				{"us1.smp", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::EN_USA,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW2,
		0,
		GF_CD | GF_SCNFILES,
		TINSEL_V2,
	},

	{	// French version of Discworld 2
		{
			"dw2",
			"CD",
			{
				{"dw2.scn", 0, "c6d15ce9720a9d8fef06e6582dcf3f34", 103593},
				{"french1.smp", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::FR_FRA,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW2,
		0,
		GF_CD | GF_SCNFILES,
		TINSEL_V2,
	},

	{	// German Discworld 2 re-release "Neon Edition"
		{
			"dw2",
			"CD",
			{
				{"dw2.scn", 0, "c6d15ce9720a9d8fef06e6582dcf3f34", 103593},
				{"german1.smp", 0, NULL, -1},
				{NULL, 0, NULL, 0}
			},
			Common::DE_DEU,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW2,
		0,
		GF_CD | GF_SCNFILES,
		TINSEL_V2,
	},

	{	// Italian/Spanish Discworld 2
		{
			"dw2",
			"CD",
			{
				{"dw2.scn", 0, "c6d15ce9720a9d8fef06e6582dcf3f34", 103593},
				{"english1.smp", 0, NULL, -1},
				{"italian1.txt", 0, "d443249f8b55489b5888c227b9096f4e", 246495},
				{NULL, 0, NULL, 0}
			},
			Common::IT_ITA,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW2,
		0,
		GF_CD | GF_SCNFILES,
		TINSEL_V2,
	},
	{
		{
			"dw2",
			"CD",
			{
				{"dw2.scn", 0, "c6d15ce9720a9d8fef06e6582dcf3f34", 103593},
				{"english1.smp", 0, NULL, -1},
				{"spanish1.txt", 0, "bc6e147c5f542db228ac577357e4d897", 230323},
				{NULL, 0, NULL, 0}
			},
			Common::ES_ESP,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW2,
		0,
		GF_CD | GF_SCNFILES,
		TINSEL_V2,
	},

	{	// Russian Discworld 2 release by Fargus
		{
			"dw2",
			"CD",
			{
				{"dw2.scn", 0, "c6d15ce9720a9d8fef06e6582dcf3f34", 103593},
				{"english1.smp", 0, NULL, -1},
				{"english1.txt", 0, "b522e19d7b2cd7b85e50e36fe48e36a9", 274444},
				{NULL, 0, NULL, 0}
			},
			Common::RU_RUS,
			Common::kPlatformPC,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GID_DW2,
		0,
		GF_CD | GF_SCNFILES,
		TINSEL_V2,
	},

	{ AD_TABLE_END_MARKER, 0, 0, 0, 0 }
};

} // End of namespace Tinsel

static const ADParams detectionParams = {
	// Pointer to ADGameDescription or its superset structure
	(const byte *)Tinsel::gameDescriptions,
	// Size of that superset structure
	sizeof(Tinsel::TinselGameDescription),
	// Number of bytes to compute MD5 sum for
	5000,
	// List of all engine targets
	tinselGames,
	// Structure for autoupgrading obsolete targets
	0,
	// Name of single gameid (optional)
	"tinsel",
	// List of files for file-based fallback detection (optional)
	0,
	// Flags
	0,
	// Additional GUI options (for every game}
	Common::GUIO_NONE
};

class TinselMetaEngine : public AdvancedMetaEngine {
public:
	TinselMetaEngine() : AdvancedMetaEngine(detectionParams) {}

	virtual const char *getName() const {
		return "Tinsel Engine";
	}

	virtual const char *getOriginalCopyright() const {
		return "Tinsel (C) Psygnosis";
	}

	virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const;
	const ADGameDescription *fallbackDetect(const Common::FSList &fslist) const;

	virtual bool hasFeature(MetaEngineFeature f) const;
	virtual SaveStateList listSaves(const char *target) const;
	virtual int getMaximumSaveSlot() const;
	virtual void removeSaveState(const char *target, int slot) const;
};

bool TinselMetaEngine::hasFeature(MetaEngineFeature f) const {
	return
		(f == kSupportsListSaves) ||
		(f == kSupportsLoadingDuringStartup) ||
		(f == kSupportsDeleteSave);
}

bool Tinsel::TinselEngine::hasFeature(EngineFeature f) const {
	return
#if 0
		// FIXME: tinsel does not exit cleanly yet
		(f == kSupportsRTL) ||
#endif
		(f == kSupportsLoadingDuringRuntime);
}

namespace Tinsel {
extern int getList(Common::SaveFileManager *saveFileMan, const Common::String &target);
}

SaveStateList TinselMetaEngine::listSaves(const char *target) const {
	Common::String pattern = target;
	pattern = pattern + ".???";
	Common::StringList files = g_system->getSavefileManager()->listSavefiles(pattern);
	sort(files.begin(), files.end());	// Sort (hopefully ensuring we are sorted numerically..)

	SaveStateList saveList;
	int slotNum = 0;
	for (Common::StringList::const_iterator file = files.begin(); file != files.end(); ++file) {
		// Obtain the last 3 digits of the filename, since they correspond to the save slot
		slotNum = atoi(file->c_str() + file->size() - 3);

		const Common::String &fname = *file;
		Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(fname);
		if (in) {
			in->readUint32LE();		// skip id
			in->readUint32LE();		// skip size
			in->readUint32LE();		// skip version
			char saveDesc[Tinsel::SG_DESC_LEN];
			in->read(saveDesc, sizeof(saveDesc));

			saveDesc[Tinsel::SG_DESC_LEN - 1] = 0;

			saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
			delete in;
		}
	}

	return saveList;
}

bool TinselMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
	const Tinsel::TinselGameDescription *gd = (const Tinsel::TinselGameDescription *)desc;
	if (gd) {
		*engine = new Tinsel::TinselEngine(syst, gd);
	}
	return gd != 0;
}

struct SizeMD5 {
	int size;
	char md5[32+1];
};
typedef Common::HashMap<Common::String, SizeMD5, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> SizeMD5Map;
typedef Common::HashMap<Common::String, Common::FSNode, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> FileMap;
typedef Common::Array<const ADGameDescription*> ADGameDescList;

/**
 * Fallback detection scans the list of Discworld 2 targets to see if it can detect an installation
 * where the files haven't been renamed (i.e. don't have the '1' just before the extension)
 */
const ADGameDescription *TinselMetaEngine::fallbackDetect(const Common::FSList &fslist) const {
	Common::String extra;
	FileMap allFiles;
	SizeMD5Map filesSizeMD5;

	const ADGameFileDescription *fileDesc;
	const Tinsel::TinselGameDescription *g;

	if (fslist.empty())
		return NULL;

	// First we compose a hashmap of all files in fslist.
	// Includes nifty stuff like removing trailing dots and ignoring case.
	for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
		if (file->isDirectory()) {
			if (!scumm_stricmp(file->getName().c_str(), "dw2")) {
				// Probably Discworld 2 subfolder on CD, so add it's contents as well
				Common::FSList files;
				if (file->getChildren(files, Common::FSNode::kListAll)) {
					Common::FSList::const_iterator file2;
					for (file2 = files.begin(); file2 != files.end(); ++file2) {
						if (file2->isDirectory())
							continue;

						Common::String fname = file2->getName();
						allFiles[fname] = *file2;
					}
				}
			}
			continue;
		}

		Common::String tstr = file->getName();

		allFiles[tstr] = *file;	// Record the presence of this file
	}

	// Check which files are included in some dw2 ADGameDescription *and* present
	// in fslist without a '1' suffix character. Compute MD5s and file sizes for these files.
	for (g = &Tinsel::gameDescriptions[0]; g->desc.gameid != 0; ++g) {
		if (strcmp(g->desc.gameid, "dw2") != 0)
			continue;

		for (fileDesc = g->desc.filesDescriptions; fileDesc->fileName; fileDesc++) {
			// Get the next filename, stripping off any '1' suffix character
			char tempFilename[50];
			strcpy(tempFilename, fileDesc->fileName);
			char *pOne = strchr(tempFilename, '1');
			if (pOne) strcpy(pOne, pOne + 1);	// FIXME: Valgrind complains about this

			Common::String fname(tempFilename);
			if (allFiles.contains(fname) && !filesSizeMD5.contains(fname)) {
				SizeMD5 tmp;
				if (!md5_file_string(allFiles[fname], tmp.md5, detectionParams.md5Bytes))
					tmp.md5[0] = 0;

				Common::File testFile;
				if (testFile.open(allFiles[fname]))
					tmp.size = (int32)testFile.size();
				else
					tmp.size = -1;

				filesSizeMD5[fname] = tmp;
			}
		}
	}

	ADGameDescList matched;
	int maxFilesMatched = 0;
	bool gotAnyMatchesWithAllFiles = false;

	// MD5 based matching
	uint i;
	for (i = 0, g = &Tinsel::gameDescriptions[0]; g->desc.gameid != 0; ++g) {
		if (strcmp(g->desc.gameid, "dw2") != 0)
			continue;

		bool fileMissing = false;

		if ((detectionParams.flags & kADFlagUseExtraAsHint) && !extra.empty() && g->desc.extra != extra)
			continue;

		bool allFilesPresent = true;

		// Try to match all files for this game
		for (fileDesc = g->desc.filesDescriptions; fileDesc->fileName; fileDesc++) {
			// Get the next filename, stripping off any '1' suffix character
			char tempFilename[50];
			strcpy(tempFilename, fileDesc->fileName);
			char *pOne = strchr(tempFilename, '1');
			if (pOne) strcpy(pOne, pOne + 1);

			Common::String tstr(tempFilename);

			if (!filesSizeMD5.contains(tstr)) {
				fileMissing = true;
				allFilesPresent = false;
				break;
			}

			if (fileDesc->md5 != NULL && 0 != strcmp(fileDesc->md5, filesSizeMD5[tstr].md5)) {
				fileMissing = true;
				break;
			}

			if (fileDesc->fileSize != -1 && fileDesc->fileSize != filesSizeMD5[tstr].size) {
				fileMissing = true;
				break;
			}
		}

		if (allFilesPresent)
			gotAnyMatchesWithAllFiles = true;

		if (!fileMissing) {
			// Count the number of matching files. Then, only keep those
			// entries which match a maximal amount of files.
			int curFilesMatched = 0;
			for (fileDesc = g->desc.filesDescriptions; fileDesc->fileName; fileDesc++)
				curFilesMatched++;

			if (curFilesMatched > maxFilesMatched) {
				maxFilesMatched = curFilesMatched;

				for (uint j = 0; j < matched.size();) {
					if (matched[j]->flags & ADGF_KEEPMATCH)
						 ++j;
					else
						matched.remove_at(j);
				}
				matched.push_back((const ADGameDescription *)g);
			} else if (curFilesMatched == maxFilesMatched) {
				matched.push_back((const ADGameDescription *)g);
			}
		}
	}

	// We didn't find a match
	if (matched.empty())
		return NULL;

	return *matched.begin();
}

int TinselMetaEngine::getMaximumSaveSlot() const { return 99; }

void TinselMetaEngine::removeSaveState(const char *target, int slot) const {
	Tinsel::setNeedLoad();
	Tinsel::getList(g_system->getSavefileManager(), target);

	g_system->getSavefileManager()->removeSavefile(Tinsel::ListEntry(slot, Tinsel::LE_NAME));
	Tinsel::setNeedLoad();
	Tinsel::getList(g_system->getSavefileManager(), target);
}

#if PLUGIN_ENABLED_DYNAMIC(TINSEL)
	REGISTER_PLUGIN_DYNAMIC(TINSEL, PLUGIN_TYPE_ENGINE, TinselMetaEngine);
#else
	REGISTER_PLUGIN_STATIC(TINSEL, PLUGIN_TYPE_ENGINE, TinselMetaEngine);
#endif

namespace Tinsel {

Common::Error TinselEngine::loadGameState(int slot) {
	// FIXME: Hopefully this is only used when loading games via
	// the launcher, since we do a hacky savegame slot to savelist
	// entry mapping here.
	//
	// You might wonder why is needed and here is the answer:
	// The save/load dialog of the GMM operates with the physical
	// savegame slots, while Tinsel internally uses entry numbers in
	// a savelist (which is sorted latest to first). Now to allow
	// proper loading of (especially Discworld2) saves we need to
	// get a savelist entry number instead of the physical slot.
	//
	// There are different possible solutions:
	//
	// One way to fix this would be to pass the filename instead of
	// the savelist entry number to RestoreGame, though it could make
	// problems how DW2 handles CD switches. Normally DW2 would pass
	// '-2' as slot when it changes CDs.
	//
	// Another way would be to convert all of Tinsel to use physical
	// slot numbers instead of savelist entry numbers for loading.
	// This would also allow '-2' as slot for CD changes without
	// any major hackery.

	int listSlot = -1;
	const int numStates = Tinsel::getList();
	for (int i = 0; i < numStates; ++i) {
		const char *fileName = Tinsel::ListEntry(i, Tinsel::LE_NAME);
		const int saveSlot = atoi(fileName + strlen(fileName) - 3);

		if (saveSlot == slot) {
			listSlot = i;
			break;
		}
	}

	if (listSlot == -1)
		return Common::kUnknownError;	// TODO: proper error code

	RestoreGame(listSlot);
	return Common::kNoError;	// TODO: return success/failure
}

#if 0
Common::Error TinselEngine::saveGameState(int slot, const char *desc) {
	Common::String saveName = _vm->getSavegameFilename((int16)(slot + 1));
	char saveDesc[SG_DESC_LEN];
	strncpy(saveDesc, desc, SG_DESC_LEN);
	// Make sure that saveDesc is 0-terminated
	saveDesc[SG_DESC_LEN - 1] = '\0';
	SaveGame((char *)saveName.c_str(), saveDesc);
	ProcessSRQueue();			// This shouldn't be needed, but for some reason it is...
	return Common::kNoError;	// TODO: return success/failure
}
#endif

bool TinselEngine::canLoadGameStateCurrently() { return !_bmv->MoviePlaying(); }

#if 0
bool TinselEngine::canSaveGameStateCurrently() { return isCursorShown(); }
#endif

} // End of namespace Tinsel