aboutsummaryrefslogtreecommitdiff
path: root/scumm/resource.cpp
blob: c487541c5515196834e80fb5f09460a9ab6fc460 (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
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
/* ScummVM - Scumm Interpreter
 * Copyright (C) 2001  Ludvig Strigeus
 * Copyright (C) 2001-2004 The ScummVM project
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Header$
 *
 */

#include "stdafx.h"
#include "common/str.h"
#include "scumm/dialogs.h"
#include "scumm/imuse.h"
#include "scumm/imuse_digi/dimuse.h"
#include "scumm/object.h"
#include "scumm/resource.h"
#include "scumm/scumm.h"
#include "scumm/sound.h"
#include "scumm/verbs.h"
#include "sound/mididrv.h" // Need MD_ enum values

namespace Scumm {

static uint16 newTag2Old(uint32 oldTag);
static const char *resTypeFromId(int id);



ScummFile::ScummFile() : _encbyte(0), _subFileStart(0), _subFileLen(0) {
}

void ScummFile::setEnc(byte value) {
	_encbyte = value;
}

void ScummFile::setSubfileRange(uint32 start, uint32 len) {
	// TODO: Add sanity checks
	const uint32 fileSize = File::size();
	assert(start <= fileSize);
	assert(start + len <= fileSize);
	_subFileStart = start;
	_subFileLen = len;
	seek(0, SEEK_SET);
}

void ScummFile::resetSubfile() {
	_subFileStart = 0;
	_subFileLen = 0;
	seek(0, SEEK_SET);
}

bool ScummFile::open(const char *filename, AccessMode mode, const char *directory) {
	if (File::open(filename, mode, directory)) {
		resetSubfile();
		return true;
	} else {
		return false;
	}
}

bool ScummFile::openSubFile(const char *filename) {
	assert(isOpen());

	// Disable the XOR encryption and reset any current subfile range
	setEnc(0);
	resetSubfile();

	// Read in the filename table and look for the specified file

	unsigned long file_off, file_len;
	char file_name[0x20+1];
	unsigned long i;

	// Get the length of the data file to use for consistency checks
	const uint32 data_file_len = size();
	
	// Read offset and length to the file records */
	const uint32 file_record_off = readUint32BE();
	const uint32 file_record_len = readUint32BE();

	// Do a quick check to make sure the offset and length are good
	if (file_record_off + file_record_len > data_file_len) {
		return false;
	}

	// Do a little consistancy check on file_record_length
	if (file_record_len % 0x28) {
		return false;
	}

	// Scan through the files
	for (i = 0; i < file_record_len; i += 0x28) {
		// read a file record
		seek(file_record_off + i, SEEK_SET);
		file_off = readUint32BE();
		file_len = readUint32BE();
		read(file_name, 0x20);
		file_name[0x20] = 0;

		assert(file_name[0]);
		//debug(7, "  extracting \'%s\'", file_name);
		
		// Consistency check. make sure the file data is in the file
		if (file_off + file_len > data_file_len) {
			return false;
		}
		
		if (scumm_stricmp(file_name, filename) == 0) {
			// We got a match!
			setSubfileRange(file_off, file_len);
			return true;
		}
	}

	return false;
}


bool ScummFile::eof() {
	return _subFileLen ? (pos() >= _subFileLen) : File::eof();
}

uint32 ScummFile::pos() {
	return File::pos() - _subFileStart;
}

uint32 ScummFile::size() {
	return _subFileLen ? _subFileLen : File::size();
}

void ScummFile::seek(int32 offs, int whence) {
	if (_subFileLen) {
		// Constrain the seek to the subfile
		switch (whence) {
		case SEEK_END:
			offs = _subFileStart + _subFileLen - offs;
			break;
		case SEEK_SET:
			offs += _subFileStart;
			break;
		case SEEK_CUR:
			offs += File::pos();
			break;
		}
		assert((int32)_subFileStart <= offs && offs <= (int32)(_subFileStart + _subFileLen));
		whence = SEEK_SET;
	}
	File::seek(offs, whence);
}

uint32 ScummFile::read(void *ptr, uint32 len) {
	uint32 realLen;
	
	if (_subFileLen) {
		// Limit the amount we read by the subfile boundaries.
		const uint32 curPos = pos();
		assert(_subFileLen >= curPos);
		uint32 newPos = curPos + len;
		if (newPos > _subFileLen) {
			len = _subFileLen - curPos;
			_ioFailed = true;
		}
	}
	
	realLen = File::read(ptr, len);
	
	
	// If an encryption byte was specified, XOR the data we just read by it.
	// This simple kind of "encryption" was used by some of the older SCUMM
	// games.
	if (_encbyte) {
		byte *p = (byte *)ptr;
		byte *end = p + realLen;
		while (p < end)
			*p++ ^= _encbyte;
	}

	return realLen;
}

uint32 ScummFile::write(const void *, uint32) {
	error("ScummFile does not support writing!");
}



/* Open a room */
void ScummEngine::openRoom(int room) {
	int room_offs, roomlimit;
	bool result;
	char buf[128];
	char buf2[128] = "";
	byte encByte = 0;

	debugC(DEBUG_GENERAL, "openRoom(%d)", room);
	assert(room >= 0);

	/* Don't load the same room again */
	if (_lastLoadedRoom == room)
		return;
	_lastLoadedRoom = room;

	/* Room -1 means close file */
	if (room == -1) {
		deleteRoomOffsets();
		_fileHandle.close();
		return;
	}

	/* Either xxx.lfl or monkey.xxx file name */
	while (1) {
		if (_features & GF_SMALL_NAMES)
			roomlimit = 98;
		else
			roomlimit = 900;
		if (_features & GF_EXTERNAL_CHARSET && room >= roomlimit)
			room_offs = 0;
		else
			room_offs = room ? _roomFileOffsets[room] : 0;

		if (room_offs == -1)
			break;

		if (room_offs != 0 && room != 0) {
			_fileOffset = _roomFileOffsets[room];
			return;
		}
		if (!(_features & GF_SMALL_HEADER)) {

			if (_heversion >= 70) { // Windows titles
				if (_heversion >= 98) {
					sprintf(buf, "%s.%s", _gameName.c_str(), room == 0 ? "he0" : "(a)");
					sprintf(buf2, "%s.(b)", _gameName.c_str());
				} else
					sprintf(buf, "%s.he%.1d", _gameName.c_str(), room == 0 ? 0 : 1);
			} else if (_version >= 7) {
				if (room > 0 && (_version == 8))
					VAR(VAR_CURRENTDISK) = res.roomno[rtRoom][room];
				sprintf(buf, "%s.la%d", _gameName.c_str(), room == 0 ? 0 : res.roomno[rtRoom][room]);

				sprintf(buf2, "%s.%.3d", _gameName.c_str(), room == 0 ? 0 : res.roomno[rtRoom][room]);
			} else if (_features & GF_HUMONGOUS)
				sprintf(buf, "%s.he%.1d", _gameName.c_str(), room == 0 ? 0 : res.roomno[rtRoom][room]);
			else {
				sprintf(buf, "%s.%.3d",  _gameName.c_str(), room == 0 ? 0 : res.roomno[rtRoom][room]);
				if (_gameId == GID_SAMNMAX)
					sprintf(buf2, "%s.sm%.1d",  _gameName.c_str(), room == 0 ? 0 : res.roomno[rtRoom][room]);
			}

			encByte = (_features & GF_USE_KEY) ? 0x69 : 0;
		} else if (!(_features & GF_SMALL_NAMES)) {
			if (room == 0 || room >= 900) {
				sprintf(buf, "%.3d.lfl", room);
				encByte = 0;
				if (openResourceFile(buf, encByte)) {
					return;
				}
				askForDisk(buf, room == 0 ? 0 : res.roomno[rtRoom][room]);

			} else {
				sprintf(buf, "disk%.2d.lec", room == 0 ? 0 : res.roomno[rtRoom][room]);
				encByte = 0x69;
			}
		} else {
			sprintf(buf, "%.2d.lfl", room);
			// Maniac Mansion demo has .man instead of .lfl
			if (_gameId == GID_MANIAC)
				sprintf(buf2, "%.2d.man", room);
			encByte = (_features & GF_USE_KEY) ? 0xFF : 0;
		}

		result = openResourceFile(buf, encByte);
		if ((result == false) && (buf2[0])) {
			result = openResourceFile(buf2, encByte);
			// We have .man files so set demo mode
			if (_gameId == GID_MANIAC)
				_demoMode = true;
		}
			
		if (result) {
			if (room == 0)
				return;
			if (_features & GF_EXTERNAL_CHARSET && room >= roomlimit)
				return;
			readRoomsOffsets();
			_fileOffset = _roomFileOffsets[room];

			if (_fileOffset != 8)
				return;

			error("Room %d not in %s", room, buf);
			return;
		}
		askForDisk(buf, room == 0 ? 0 : res.roomno[rtRoom][room]);
	}

	do {
		sprintf(buf, "%.3d.lfl", room);
		encByte = 0;
		if (openResourceFile(buf, encByte))
			break;
		askForDisk(buf, room == 0 ? 0 : res.roomno[rtRoom][room]);
	} while (1);

	deleteRoomOffsets();
	_fileOffset = 0;		// start of file
}

void ScummEngine::closeRoom() {
	if (_lastLoadedRoom != -1) {
		_lastLoadedRoom = -1;
		deleteRoomOffsets();
		_fileHandle.close();
	}
}

/** Delete the currently loaded room offsets. */
void ScummEngine::deleteRoomOffsets() {
	if (!(_features & GF_SMALL_HEADER) && !_dynamicRoomOffsets)
		return;

	for (int i = 0; i < _numRooms; i++) {
		if (_roomFileOffsets[i] != 0xFFFFFFFF)
			_roomFileOffsets[i] = 0;
	}
}

/** Read room offsets */
void ScummEngine::readRoomsOffsets() {
	int num, room, i;
	byte *ptr;

	debug(9, "readRoomOffsets()");

	deleteRoomOffsets();
	if (_features & GF_SMALL_NAMES)
		return;

	if (_heversion >= 70) { // Windows titles
		num = READ_LE_UINT16(_HEV7RoomOffsets);
		ptr = _HEV7RoomOffsets + 2;
		for (i = 0; i < num; i++) {
			_roomFileOffsets[i] = READ_LE_UINT32(ptr);	
			ptr += 4;
		}
		return;
	}
	
	if (!(_features & GF_SMALL_HEADER)) {
		if (!_dynamicRoomOffsets)
			return;

		_fileHandle.seek(16, SEEK_SET);
	} else {
		_fileHandle.seek(12, SEEK_SET);	// Directly searching for the room offset block would be more generic...
	}

	num = _fileHandle.readByte();
	while (num--) {
		room = _fileHandle.readByte();
		if (_roomFileOffsets[room] != 0xFFFFFFFF) {
			_roomFileOffsets[room] = _fileHandle.readUint32LE();
		} else {
			_fileHandle.readUint32LE();
		}
	}
}

bool ScummEngine::openFile(ScummFile &file, const char *filename) {
	bool result = false;

	if (!_containerFile.isEmpty()) {
		file.close();
		file.open(_containerFile.c_str());
		assert(file.isOpen());
		
		result = file.openSubFile(filename);
	}
	
	if (!result) {
		file.close();
		result = file.open(filename);
	}
	
	return result;
}

bool ScummEngine::openResourceFile(const char *filename, byte encByte) {
	debugC(DEBUG_GENERAL, "openResourceFile(%s)", filename);
	
	if (openFile(_fileHandle, filename)) {
		_fileHandle.setEnc(encByte);
		return true;
	}
	return false;
}

void ScummEngine::askForDisk(const char *filename, int disknum) {
	char buf[128];

	if (_version == 8) {
		char result;

		_imuseDigital->stopAllSounds();

#ifdef MACOSX
		sprintf(buf, "Cannot find file: '%s'\nPlease insert disc %d.\nPress OK to retry, Quit to exit", filename, disknum);
#else
		sprintf(buf, "Cannot find file: '%s'\nInsert disc %d into drive %s\nPress OK to retry, Quit to exit", filename, disknum, _gameDataPath.c_str());
#endif

		result = displayMessage("Quit", buf);
		if (!result) {
#ifdef __PALM_OS__
			error("Cannot find file: '%s'", filename);
#else
			_system->quit();
#endif
		}
	} else { 
		sprintf(buf, "Cannot find file: '%s'", filename);
		InfoDialog dialog(this, (char*)buf);
		runDialog(dialog);
#ifdef __PALM_OS__
		error("Cannot find file: '%s'", filename);
#else
		_system->quit();
#endif
	}
}

void ScummEngine::readIndexFile() {
	uint32 blocktype, itemsize;
	int numblock = 0;
	int num, i;
	bool stop = false;

	debugC(DEBUG_GENERAL, "readIndexFile()");

	closeRoom();
	openRoom(0);

	if (_version <= 5) {
		/* Figure out the sizes of various resources */
		while (!_fileHandle.eof()) {
			blocktype = fileReadDword();
			itemsize = _fileHandle.readUint32BE();
			if (_fileHandle.ioFailed())
				break;
			switch (blocktype) {
			case MKID('DOBJ'):
				_numGlobalObjects = _fileHandle.readUint16LE();
				itemsize -= 2;
				break;
			case MKID('DROO'):
				_numRooms = _fileHandle.readUint16LE();
				itemsize -= 2;
				break;

			case MKID('DSCR'):
				_numScripts = _fileHandle.readUint16LE();
				itemsize -= 2;
				break;

			case MKID('DCOS'):
				_numCostumes = _fileHandle.readUint16LE();
				itemsize -= 2;
				break;

			case MKID('DSOU'):
				_numSounds = _fileHandle.readUint16LE();
				itemsize -= 2;
				break;
			}
			_fileHandle.seek(itemsize - 8, SEEK_CUR);
		}
		_fileHandle.clearIOFailed();
		_fileHandle.seek(0, SEEK_SET);
	}

	while (!stop) {
		blocktype = fileReadDword();

		if (_fileHandle.ioFailed())
			break;
		itemsize = _fileHandle.readUint32BE();

		numblock++;

		switch (blocktype) {
		case MKID('DCHR'):
		case MKID('DIRF'):
			readResTypeList(rtCharset, MKID('CHAR'), "charset");
			break;
		
		case MKID('DOBJ'):
			debug(9, "found DOBJ block, reading object table");
			if (_version == 8)
				num = _fileHandle.readUint32LE();
			else
				num = _fileHandle.readUint16LE();
			assert(num == _numGlobalObjects);

			if (_version == 8) {	/* FIXME: Not sure.. */
				char buffer[40];
				for (i = 0; i < num; i++) {
					_fileHandle.read(buffer, 40);
					if (buffer[0]) {
						// Add to object name-to-id map
						_objectIDMap[buffer] = i;
					}
					_objectStateTable[i] = _fileHandle.readByte();
					_objectRoomTable[i] = _fileHandle.readByte();
					_classData[i] = _fileHandle.readUint32LE();
				}
				memset(_objectOwnerTable, 0xFF, num);
			} else if (_version == 7) {
				_fileHandle.read(_objectStateTable, num);
				_fileHandle.read(_objectRoomTable, num);
				memset(_objectOwnerTable, 0xFF, num);
			} else if (_heversion >= 70) { // HE Windows titles
				_fileHandle.read(_objectStateTable, num);
				_fileHandle.read(_objectOwnerTable, num);
				_fileHandle.read(_objectRoomTable, num);
			} else {
				_fileHandle.read(_objectOwnerTable, num);
				for (i = 0; i < num; i++) {
					_objectStateTable[i] = _objectOwnerTable[i] >> OF_STATE_SHL;
					_objectOwnerTable[i] &= OF_OWNER_MASK;
				}
			}
			
			if (_version != 8) {
				_fileHandle.read(_classData, num * sizeof(uint32));

				// Swap flag endian where applicable
#if defined(SCUMM_BIG_ENDIAN)
				for (i = 0; i != num; i++)
					_classData[i] = FROM_LE_32(_classData[i]);
#endif
			}
			break;

		case MKID('RNAM'):
			// Names of rooms
			_fileHandle.seek(itemsize - 8, SEEK_CUR);
			debug(9, "found RNAM block, skipping");
			break;
		
		case MKID('DLFL'):
			i = _fileHandle.readUint16LE();
			_fileHandle.seek(-2, SEEK_CUR);
			_HEV7RoomOffsets = (byte *)calloc(2 + (i * 4), 1);
			_fileHandle.read(_HEV7RoomOffsets, (2 + (i * 4)) );
			break;

		case MKID('DIRM'):
			readResTypeList(rtImage, MKID('AWIZ'), "images");
			break;
			
		case MKID('DIRT'):
			readResTypeList(rtTalkie, MKID('TLKE'), "talkie");
			break;

		case MKID('SVER'):
			_fileHandle.seek(itemsize - 8, SEEK_CUR);
			warning("SVER index block not yet handled, skipping");
			break;

		case MKID('DISK'):
			_fileHandle.seek(itemsize - 8, SEEK_CUR);
			debug(2, "DISK index block not yet handled, skipping");
			break;

		case MKID('INIB'):
			_fileHandle.seek(itemsize - 8, SEEK_CUR);
			debug(2, "INIB index block not yet handled, skipping");
			break;

		case MKID('DIRI'):
			readResTypeList(rtRoom, MKID('RMIM'), "room image");
			break;

		case MKID('ANAM'):
			debug(9, "found ANAM block, reading audio names");
			_numAudioNames = _fileHandle.readUint16LE();
			_audioNames = (char*)malloc(_numAudioNames * 9);
			_fileHandle.read(_audioNames, _numAudioNames * 9);
			break;

		case MKID('DIRR'):
		case MKID('DROO'):
			readResTypeList(rtRoom, MKID('ROOM'), "room");
			break;

		case MKID('DRSC'):					// FIXME: Verify
			readResTypeList(rtRoomScripts, MKID('RMSC'), "room script");
			break;

		case MKID('DSCR'):
		case MKID('DIRS'):
			readResTypeList(rtScript, MKID('SCRP'), "script");
			break;

		case MKID('DCOS'):
		case MKID('DIRC'):
			readResTypeList(rtCostume, MKID('COST'), "costume");
			break;

		case MKID('MAXS'):
			readMAXS(itemsize);
			break;

		case MKID('DIRN'):
		case MKID('DSOU'):
			readResTypeList(rtSound, MKID('SOUN'), "sound");
			break;

		case MKID('AARY'):
			readArrayFromIndexFile();
			break;

		default:
			error("Bad ID %04X('%s') found in index file directory!", blocktype,
					tag2str(blocktype));
			return;
		}
	}

//  if (numblock!=9)
//    error("Not enough blocks read from directory");

	closeRoom();
}

void ScummEngine::readArrayFromIndexFile() {
	error("readArrayFromIndexFile() not supported in pre-V6 games");
}

void ScummEngine::readResTypeList(int id, uint32 tag, const char *name) {
	int num;
	int i;

	debug(9, "readResTypeList(%s,%s,%s)", resTypeFromId(id), tag2str(TO_BE_32(tag)), name);

	if (_version == 8)
		num = _fileHandle.readUint32LE();
	else if (!(_features & GF_OLD_BUNDLE))
		num = _fileHandle.readUint16LE();
	else
		num = _fileHandle.readByte();

	if (_features & GF_OLD_BUNDLE) {
		if (num >= 0xFF) {
			error("Too many %ss (%d) in directory", name, num);
		}
	} else {
		if (num != res.num[id]) {
			error("Invalid number of %ss (%d) in directory", name, num);
		}
	}

	if (_features & GF_OLD_BUNDLE) {
		if (id == rtRoom) {
			for (i = 0; i < num; i++)
				res.roomno[id][i] = i;
			_fileHandle.seek(num, SEEK_CUR);
		} else {
			for (i = 0; i < num; i++)
				res.roomno[id][i] = _fileHandle.readByte();
		}
		for (i = 0; i < num; i++) {
			res.roomoffs[id][i] = _fileHandle.readUint16LE();
			if (res.roomoffs[id][i] == 0xFFFF)
				res.roomoffs[id][i] = 0xFFFFFFFF;
		}

	} else if (_features & GF_SMALL_HEADER) {
		for (i = 0; i < num; i++) {
			res.roomno[id][i] = _fileHandle.readByte();
			res.roomoffs[id][i] = _fileHandle.readUint32LE();
		}
	} else {
		for (i = 0; i < num; i++) {
			res.roomno[id][i] = _fileHandle.readByte();
		}
		for (i = 0; i < num; i++) {
			res.roomoffs[id][i] = _fileHandle.readUint32LE();

			if (id == rtRoom && _heversion >= 70)
				_HEV7RoomIntOffsets[i] = res.roomoffs[id][i];
		}

		if (_heversion >= 70) {
			for (i = 0; i < num; i++) {
				res.globsize[id][i] = _fileHandle.readUint32LE();
			}
		}
	}
}

void ScummEngine::allocResTypeData(int id, uint32 tag, int num, const char *name, int mode) {
	debug(9, "allocResTypeData(%s/%s,%s,%d,%d)", resTypeFromId(id), name, tag2str(TO_BE_32(tag)), num, mode);
	assert(id >= 0 && id < (int)(ARRAYSIZE(res.mode)));

	if (num >= 8000)
		error("Too many %ss (%d) in directory", name, num);

	res.mode[id] = mode;
	res.num[id] = num;
	res.tags[id] = tag;
	res.name[id] = name;
	res.address[id] = (byte **)calloc(num, sizeof(void *));
	res.flags[id] = (byte *)calloc(num, sizeof(byte));

	if (mode) {
		res.roomno[id] = (byte *)calloc(num, sizeof(byte));
		res.roomoffs[id] = (uint32 *)calloc(num, sizeof(uint32));
	}

	if (_heversion >= 70) {
		res.globsize[id] = (uint32 *)calloc(num, sizeof(uint32));

		if (id == rtRoom)
			_HEV7RoomIntOffsets = (uint32 *)calloc(num, sizeof(uint32));
	}
}

void ScummEngine::loadCharset(int no) {
	int i;
	byte *ptr;

	debugC(DEBUG_GENERAL, "loadCharset(%d)", no);

	/* FIXME - hack around crash in Indy4 (occurs if you try to load after dieing) */
	if (_gameId == GID_INDY4 && no == 0)
		no = 1;

	/* for Humongous catalogs */
	if (_heversion >= 70 && _numCharsets == 1) {
		warning("not loading charset as it doesn't seem to exist?");
		return;
	}

	assert(no < (int)sizeof(_charsetData) / 16);
	checkRange(_numCharsets - 1, 1, no, "Loading illegal charset %d");

//  ensureResourceLoaded(rtCharset, no);
	ptr = getResourceAddress(rtCharset, no);
	if (_features & GF_SMALL_HEADER)
		ptr -= 12;

	for (i = 0; i < 15; i++) {
		_charsetData[no][i + 1] = ptr[i + 14];
	}
}

void ScummEngine::nukeCharset(int i) {
	checkRange(_numCharsets - 1, 1, i, "Nuking illegal charset %d");
	nukeResource(rtCharset, i);
}

void ScummEngine::ensureResourceLoaded(int type, int i) {
	void *addr = NULL;

	debugC(DEBUG_RESOURCE, "ensureResourceLoaded(%s,%d)", resTypeFromId(type), i);

	if ((type == rtRoom) && i > 0x7F && _version < 7) {
		i = _resourceMapper[i & 0x7F];
	}

	// FIXME - TODO: This check used to be "i==0". However, that causes
	// problems when using this function to ensure charset 0 is loaded.
	// This is done for many games, e.g. Zak256 or Indy3 (EGA and VGA).
	// For now we restrict the check to anything which is not a charset.
	// Question: Why was this check like that in the first place?
	// Answer: costumes with an index of zero in the newer games at least.
	// TODO: determine why the heck anything would try to load a costume
	// with id 0. Is that "normal", or is it caused by yet another bug in
	// our code base? After all we also have to add special cases for many
	// of our script opcodes that check for the (invalid) actor 0... so 
	// maybe both issues are related...
	if (type != rtCharset && i == 0)
		return;

	if (i <= res.num[type])
		addr = res.address[type][i];

	if (addr)
		return;

	loadResource(type, i);

	if (_version == 5 && type == rtRoom && i == _roomResource)
			VAR(VAR_ROOM_FLAG) = 1;
}

int ScummEngine::loadResource(int type, int idx) {
	int roomNr;
	uint32 fileOffs;
	uint32 size, tag;

	debugC(DEBUG_RESOURCE, "loadResource(%s,%d)", resTypeFromId(type),idx);

	if (type == rtCharset && (_features & GF_SMALL_HEADER)) {
		loadCharset(idx);
		return (1);
	}

	roomNr = getResourceRoomNr(type, idx);

	if (idx >= res.num[type])
		error("%s %d undefined %d %d", res.name[type], idx, res.num[type], roomNr);

	if (roomNr == 0)
		roomNr = _roomResource;

	if (type == rtRoom) {
		if (_version == 8)
			fileOffs = 8;
		else if (_heversion >= 70)
			fileOffs = _HEV7RoomIntOffsets[idx];
		else
			fileOffs = 0;
	} else {
		fileOffs = res.roomoffs[type][idx];
		if (fileOffs == 0xFFFFFFFF)
			return 0;
	}

	openRoom(roomNr);

	_fileHandle.seek(fileOffs + _fileOffset, SEEK_SET);

	if (_features & GF_OLD_BUNDLE) {
		if ((_version == 3) && !(_features & GF_AMIGA) && (type == rtSound)) {
			return readSoundResourceSmallHeader(type, idx);
		} else {
			size = _fileHandle.readUint16LE();
			_fileHandle.seek(-2, SEEK_CUR);
		}
	} else if (_features & GF_SMALL_HEADER) {
		if (!(_features & GF_SMALL_NAMES))
			_fileHandle.seek(8, SEEK_CUR);
		size = _fileHandle.readUint32LE();
		tag = _fileHandle.readUint16LE();
		_fileHandle.seek(-6, SEEK_CUR);
		if ((type == rtSound) && !(_features & GF_AMIGA) && !(_features & GF_FMTOWNS)) {
			return readSoundResourceSmallHeader(type, idx);
		}
	} else {
		if (type == rtSound) {
			return readSoundResource(type, idx);
		}

		tag = fileReadDword();

		if (tag != res.tags[type] && _heversion < 70) {
			error("%s %d not in room %d at %d+%d in file %s",
					res.name[type], idx, roomNr,
					_fileOffset, fileOffs, _fileHandle.name());
		}

		size = _fileHandle.readUint32BE();
		_fileHandle.seek(-8, SEEK_CUR);
	}
	_fileHandle.read(createResource(type, idx, size), size);

	// dump the resource if requested
	if (_dumpScripts && type == rtScript) {
		dumpResource("script-", idx, getResourceAddress(rtScript, idx));
	}

	if (!_fileHandle.ioFailed()) {
		return 1;
	}

	nukeResource(type, idx);

	error("Cannot read resource");
}

int ScummEngine::readSoundResource(int type, int idx) {
	uint32 pos, total_size, size, tag, basetag, max_total_size;
	int pri, best_pri;
	uint32 best_size = 0, best_offs = 0;

	debugC(DEBUG_RESOURCE, "readSoundResource(%s,%d)", resTypeFromId(type), idx);

	pos = 0;

	_fileHandle.readUint32LE();
	max_total_size = _fileHandle.readUint32BE() - 8;
	basetag = fileReadDword();
	total_size = _fileHandle.readUint32BE();

	debugC(DEBUG_RESOURCE, "  basetag: %s, total_size=%d", tag2str(TO_BE_32(basetag)), total_size);

	if (basetag == MKID('MIDI') || basetag == MKID('iMUS')) {
		if (_midiDriver != MD_PCSPK && _midiDriver != MD_PCJR) {
			_fileHandle.seek(-8, SEEK_CUR);
			_fileHandle.read(createResource(type, idx, total_size + 8), total_size + 8);
			return 1;
		}
	} else if (basetag == MKID('SOU ')) {
		best_pri = -1;
		while (pos < total_size) {
			tag = fileReadDword();
			size = _fileHandle.readUint32BE() + 8;
			pos += size;

			pri = -1;

			switch (tag) {
			case MKID('TOWS'):
				pri = 16;
				break;
			case MKID('SBL '):
				pri = 15;
				break;
			case MKID('ADL '):
				pri = 1;
				if (_midiDriver == MD_ADLIB)
					pri = 10;
				break;
			case MKID('AMI '):
				pri = 3;
				break;
			case MKID('ROL '):
				pri = 3;
				if (_native_mt32)
					pri = 5;
				break;
			case MKID('GMD '):
				pri = 4;
				break;
			case MKID('MAC '):
				pri = 2;
				break;
			case MKID('SPK '):
				pri = -1;
//				if (_midiDriver == MD_PCSPK)
//					pri = 11;
				break;
			}

			if ((_midiDriver == MD_PCSPK || _midiDriver == MD_PCJR) && pri != 11)
				pri = -1;

			debugC(DEBUG_RESOURCE, "    tag: %s, total_size=%d, pri=%d", tag2str(TO_BE_32(tag)), size, pri);


			if (pri > best_pri) {
				best_pri = pri;
				best_size = size;
				best_offs = _fileHandle.pos();
			}

			_fileHandle.seek(size - 8, SEEK_CUR);
		}

		if (best_pri != -1) {
			_fileHandle.seek(best_offs - 8, SEEK_SET);
			_fileHandle.read(createResource(type, idx, best_size), best_size);
			return 1;
		}
	} else if (basetag == MKID('Mac0')) {
		_fileHandle.seek(-12, SEEK_CUR);
		total_size = _fileHandle.readUint32BE() - 8;
		byte *ptr = (byte *)calloc(total_size, 1);
		_fileHandle.read(ptr, total_size);
//		dumpResource("sound-", idx, ptr);
		convertMac0Resource(type, idx, ptr, total_size);
		free(ptr);
		return 1;
	} else if (basetag == MKID('Mac1')) {
		_fileHandle.seek(-12, SEEK_CUR);
		total_size = _fileHandle.readUint32BE();
		_fileHandle.read(createResource(type, idx, total_size), total_size - 8);
		return 1;
	} else if (basetag == MKID('HSHD')) {
		_fileHandle.seek(-12, SEEK_CUR);
		total_size = _fileHandle.readUint32BE();
		_fileHandle.read(createResource(type, idx, total_size), total_size - 8);
		return 1;
	} else if (basetag == MKID('TALK')) {
		_fileHandle.seek(-12, SEEK_CUR);
		total_size = _fileHandle.readUint32BE();
		_fileHandle.read(createResource(type, idx, total_size), total_size - 8);
		return 1;
	} else if (basetag == MKID('DIGI')) {
		_fileHandle.seek(-12, SEEK_CUR);
		total_size = _fileHandle.readUint32BE();
		_fileHandle.read(createResource(type, idx, total_size), total_size - 8);
		return 1;
	} else if (basetag == MKID('FMUS')) {
		// Used in 3DO version of puttputt joins the parade and probably others
		// Specifies a separate file to be used for music from what I gather.
		int tmpsize;
		File dmuFile;
		char buffer[128];
		debugC(DEBUG_SOUND, "Found base tag FMUS in sound %d, size %d", idx, total_size);
		debugC(DEBUG_SOUND, "It was at position %d", _fileHandle.pos());
		
		_fileHandle.seek(4, SEEK_CUR);
		// HSHD size
		tmpsize = _fileHandle.readUint32BE();
		// skip to size part of the SDAT block
		_fileHandle.seek(tmpsize - 4, SEEK_CUR);
		// SDAT size
		tmpsize = _fileHandle.readUint32BE();
		
		// SDAT contains name of file we want
		_fileHandle.read(buffer, tmpsize - 8);
		// files seem to be 11 chars (8.3) unused space is replaced by spaces
		*(strstr(buffer, " ")) = '\0';
		
		debugC(DEBUG_SOUND, "FMUS file %s", buffer);
		if (dmuFile.open(buffer) == false) {
			warning("Can't open music file %s*", buffer);
			res.roomoffs[type][idx] = 0xFFFFFFFF;
			return 0;
		}
		dmuFile.seek(4, SEEK_SET);
		total_size = dmuFile.readUint32BE();
		debugC(DEBUG_SOUND, "dmu file size %d", total_size);
		dmuFile.seek(-8, SEEK_CUR);
		dmuFile.read(createResource(type, idx, total_size), total_size);
		dmuFile.close();
		return 1;
	} else if (basetag == MKID('Crea')) {
		_fileHandle.seek(-12, SEEK_CUR);
		total_size = _fileHandle.readUint32BE();
		_fileHandle.read(createResource(type, idx, total_size), total_size - 8);
		return 1;
	} else if (FROM_LE_32(basetag) == max_total_size) {
		_fileHandle.seek(-12, SEEK_CUR);
		total_size = _fileHandle.readUint32BE();
		_fileHandle.seek(-8, SEEK_CUR);
		_fileHandle.read(createResource(type, idx, total_size), total_size);
		return 1;
	} else {
		warning("Unrecognized base tag 0x%08x in sound %d", basetag, idx);
	}
	res.roomoffs[type][idx] = 0xFFFFFFFF;
	return 0;
}

// Adlib MIDI-SYSEX to set MIDI instruments for small header games.
static byte ADLIB_INSTR_MIDI_HACK[95] = {
	0x00, 0xf0, 0x14, 0x7d, 0x00,  // sysex 00: part on/off
	0x00, 0x00, 0x03,              // part/channel  (offset  5)
	0x00, 0x00, 0x07, 0x0f, 0x00, 0x00, 0x08, 0x00, 
	0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0xf7,
	0x00, 0xf0, 0x41, 0x7d, 0x10,  // sysex 16: set instrument
	0x00, 0x01,                    // part/channel  (offset 28)
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0xf7,
	0x00, 0xb0, 0x07, 0x64        // Controller 7 = 100 (offset 92)
};
			
static const byte map_param[7] = {
	0, 2, 3, 4, 8, 9, 0,
};

static const byte freq2note[128] = {
	/*128*/	6, 6, 6, 6,  
	/*132*/ 7, 7, 7, 7, 7, 7, 7,
	/*139*/ 8, 8, 8, 8, 8, 8, 8, 8, 8,
	/*148*/ 9, 9, 9, 9, 9, 9, 9, 9, 9,
	/*157*/ 10, 10, 10, 10, 10, 10, 10, 10, 10,
	/*166*/ 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
	/*176*/ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
	/*186*/ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
	/*197*/ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
	/*209*/ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
	/*222*/ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
	/*235*/ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
	/*249*/ 18, 18, 18, 18, 18, 18, 18
};
			
static const uint16 num_steps_table[] = {
	1, 2, 4, 5,
	6, 7, 8, 9,
	10, 12, 14, 16,
	18, 21, 24, 30,
	36, 50, 64, 82,
	100, 136, 160, 192,
	240, 276, 340, 460,
	600, 860, 1200, 1600
};

int ScummEngine::convert_extraflags(byte * ptr, byte * src_ptr) {
	int flags = src_ptr[0];

	int t1, t2, t3, t4, time;
	int v1, v2, v3;

	if (!(flags & 0x80))
		return -1;

	t1 = (src_ptr[1] & 0xf0) >> 3;
	t2 = (src_ptr[2] & 0xf0) >> 3;
	t3 = (src_ptr[3] & 0xf0) >> 3 | (flags & 0x40 ? 0x80 : 0);
	t4 = (src_ptr[3] & 0x0f) << 1;
	v1 = (src_ptr[1] & 0x0f);
	v2 = (src_ptr[2] & 0x0f);
	v3 = 31;
	if ((flags & 0x7) == 0) {
	  v1 = v1 + 31 + 8;
	  v2 = v2 + 31 + 8;
	} else {
	  v1 = v1 * 2 + 31;
	  v2 = v2 * 2 + 31;
	}
	
	/* flags a */
	if ((flags & 0x7) == 6)
		ptr[0] = 0;
	else {
		ptr[0] = (flags >> 4) & 0xb;
		ptr[1] = map_param[flags & 0x7];
	}

	/* extra a */
	ptr[2] = 0;
	ptr[3] = 0;
	ptr[4] = t1 >> 4;
	ptr[5] = t1 & 0xf;
	ptr[6] = v1 >> 4;
	ptr[7] = v1 & 0xf;
	ptr[8] = t2 >> 4;
	ptr[9] = t2 & 0xf;
	ptr[10] = v2 >> 4;
	ptr[11] = v2 & 0xf;
	ptr[12] = t3 >> 4;
	ptr[13] = t3 & 0xf;
	ptr[14] = t4 >> 4;
	ptr[15] = t4 & 0xf;
	ptr[16] = v3 >> 4;
	ptr[17] = v3 & 0xf;

	time = num_steps_table[t1] + num_steps_table[t2]
		+ num_steps_table[t3 & 0x7f] + num_steps_table[t4];
	if (flags & 0x20) {
		int playtime = ((src_ptr[4] >> 4) & 0xf) * 118 + 
			(src_ptr[4] & 0xf) * 8;
		if (playtime > time)
			time = playtime;
	}
	/*
	time = ((src_ptr[4] >> 4) & 0xf) * 118 + 
		(src_ptr[4] & 0xf) * 8;
	*/
	return time;
}

#define kMIDIHeaderSize		46
static inline byte *writeMIDIHeader(byte *ptr, const char *type, int ppqn, int total_size) {
	uint32 dw = TO_BE_32(total_size);
	
	memcpy(ptr, type, 4); ptr += 4;
	memcpy(ptr, &dw, 4); ptr += 4;
	memcpy(ptr, "MDhd", 4); ptr += 4;
	ptr[0] = 0; ptr[1] = 0; ptr[2] = 0; ptr[3] = 8;
	ptr += 4;
	memset(ptr, 0, 8), ptr += 8;
	memcpy(ptr, "MThd", 4); ptr += 4;
	ptr[0] = 0; ptr[1] = 0; ptr[2] = 0; ptr[3] = 6;
	ptr += 4;
	ptr[0] = 0; ptr[1] = 0; ptr[2] = 0; ptr[3] = 1; // MIDI format 0 with 1 track
	ptr += 4;
	
	*ptr++ = ppqn >> 8;
	*ptr++ = ppqn & 0xFF;

	memcpy(ptr, "MTrk", 4); ptr += 4;
	memcpy(ptr, &dw, 4); ptr += 4;

	return ptr;
}

static inline byte *writeVLQ(byte *ptr, int value) {
	if (value > 0x7f) {
		if (value > 0x3fff) {
			*ptr++ = (value >> 14) | 0x80;
			value &= 0x3fff;
		}
		*ptr++ = (value >> 7) | 0x80;
		value &= 0x7f;
	}
	*ptr++ = value;
	return ptr;
}

static inline byte Mac0ToGMInstrument(uint32 type, int &transpose) {
	transpose = 0;
	switch (type) {
	case MKID('MARI'): return 12;
	case MKID('PLUC'): return 45;
	case MKID('HARM'): return 22;
	case MKID('PIPE'): return 19;
	case MKID('TROM'): transpose = -12; return 57;
	case MKID('STRI'): return 48;
	case MKID('HORN'): return 60;
	case MKID('VIBE'): return 11;
	case MKID('SHAK'): return 77;
	case MKID('PANP'): return 75;
	case MKID('WHIS'): return 76;
	case MKID('ORGA'): return 17;
	case MKID('BONG'): return 115;
	case MKID('BASS'): transpose = -24; return 35;
	default:
		error("Unknown Mac0 instrument %s found", tag2str(type));
	}
}

void ScummEngine::convertMac0Resource(int type, int idx, byte *src_ptr, int size) {
	/*
	From Markus Magnuson (superqult) we got this information:
	Mac0
	---
	   4 bytes - 'SOUN'
	BE 4 bytes - block length
	
		   4 bytes  - 'Mac0'
		BE 4 bytes  - (blockLength - 27)
		   28 bytes - ???
	
		   do this three times (once for each channel):
			  4 bytes  - 'Chan'
		   BE 4 bytes  - channel length
			  4 bytes  - instrument name (e.g. 'MARI')
	
			  do this for ((chanLength-24)/4) times:
				 2 bytes  - note duration
				 1 byte   - note value
				 1 byte   - note velocity
	
			  4 bytes - ???
			  4 bytes - 'Loop'/'Done'
			  4 bytes - ???
	
	   1 byte - 0x09
	---
	
	Instruments (General Midi):
	"MARI" - Marimba (12)
	"PLUC" - Pizzicato Strings (45)
	"HARM" - Harmonica (22)
	"PIPE" - Church Organ? (19) or Flute? (73) or Bag Pipe (109)
	"TROM" - Trombone (57)
	"STRI" - String Ensemble (48 or 49)
	"HORN" - French Horn? (60) or English Horn? (69)
	"VIBE" - Vibraphone (11)
	"SHAK" - Shakuhachi? (77)
	"PANP" - Pan Flute (75)
	"WHIS" - Whistle (78) / Bottle (76)
	"ORGA" - Drawbar Organ (16; but could also be 17-20)
	"BONG" - Woodblock? (115)
	"BASS" - Bass (32-39)
	
	
	Now the task could be to convert this into MIDI, to be fed into iMuse.
	Or we do something similiar to what is done in Player_V3, assuming
	we can identify SFX in the MI datafiles for each of the instruments
	listed above.
	*/

#if 0
	byte *ptr = createResource(type, idx, size);
	memcpy(ptr, src_ptr, size);
#else
	const int ppqn = 480;
	byte *ptr, *start_ptr;
	
	int total_size = 0;
	total_size += kMIDIHeaderSize; // Header
	total_size += 7;               // Tempo META
	total_size += 3 * 3;           // Three program change mesages
	total_size += 22;              // Possible jump SysEx
	total_size += 5;               // EOT META
	
	int i, len;
	byte track_instr[3];
	byte *track_data[3];
	int track_len[3];
	int track_transpose[3];
	bool looped = false;

	src_ptr += 8;
	// TODO: Decipher the unknown bytes in the header. For now, skip 'em
	src_ptr += 28;

	// Parse the three channels
	for (i = 0; i < 3; i++) {
		assert(*((uint32*)src_ptr) == MKID('Chan'));
		len = READ_BE_UINT32(src_ptr + 4);
		track_len[i] = len - 24;
		track_instr[i] = Mac0ToGMInstrument(*(uint32*)(src_ptr + 8), track_transpose[i]);
		track_data[i] = src_ptr + 12;
		src_ptr += len;
		looped = (*((uint32*)(src_ptr - 8)) == MKID('Loop'));
		
		// For each note event, we need up to 6 bytes for the
		// Note On (3 VLQ, 3 event), and 6 bytes for the Note
		// Off (3 VLQ, 3 event). So 12 bytes total.
		total_size += 12 * track_len[i];
	}
	assert(*src_ptr == 0x09);
	
	// Create sound resource
	start_ptr = createResource(type, idx, total_size);
	
	// Insert MIDI header
	ptr = writeMIDIHeader(start_ptr, "GMD ", ppqn, total_size);

	// Write a tempo change Meta event
	// 473 / 4 Hz, convert to micro seconds.
	uint32 dw = 1000000 * 437 / 4 / ppqn; // 1000000 * ppqn * 4 / 473;
	memcpy(ptr, "\x00\xFF\x51\x03", 4); ptr += 4;
	*ptr++ = (byte)((dw >> 16) & 0xFF);
	*ptr++ = (byte)((dw >> 8) & 0xFF);
	*ptr++ = (byte)(dw & 0xFF);

	// Insert program change messages
	*ptr++ = 0; // VLQ
	*ptr++ = 0xC0;
	*ptr++ = track_instr[0];
	*ptr++ = 0; // VLQ
	*ptr++ = 0xC1;
	*ptr++ = track_instr[1];
	*ptr++ = 0; // VLQ
	*ptr++ = 0xC2;
	*ptr++ = track_instr[2];
	
	// And now, the actual composition. Please turn all cell phones
	// and pagers off during the performance. Thank you.
	uint16 nextTime[3] = { 1, 1, 1 };
	int stage[3] = { 0, 0, 0 };

	while (track_len[0] | track_len[1] | track_len[2]) {
		int best = -1;
		uint16 bestTime = 0xFFFF;
		for (i = 0; i < 3; ++i) {
			if (track_len[i] && nextTime[i] < bestTime) {
				bestTime = nextTime[i];
				best = i;
			}
		}
		assert (best != -1);

		if (!stage[best]) {
			// We are STARTING this event.
			if (track_data[best][2] > 1) {
				// Note On
				ptr = writeVLQ(ptr, nextTime[best]);
				*ptr++ = 0x90 | best;
				*ptr++ = track_data[best][2] + track_transpose[best];
				*ptr++ = track_data[best][3] * 127 / 100; // Scale velocity
				for (i = 0; i < 3; ++i)
					nextTime[i] -= bestTime;
			}
			nextTime[best] += READ_BE_UINT16 (track_data[best]);
			stage[best] = 1;
		} else {
			// We are ENDING this event.
			if (track_data[best][2] > 1) {
				// There was a Note On, so do a Note Off
				ptr = writeVLQ(ptr, nextTime[best]);
				*ptr++ = 0x80 | best;
				*ptr++ = track_data[best][2] + track_transpose[best];
				*ptr++ = track_data[best][3] * 127 / 100; // Scale velocity
				for (i = 0; i < 3; ++i)
					nextTime[i] -= bestTime;
			}
			track_data[best] += 4;
			track_len[best] -= 4;
			stage[best] = 0;
		}
	}

	// Is this a looped song? If so, effect a loop by
	// using the S&M maybe_jump SysEx command.
	// FIXME: Jamieson630: The jump seems to be happening
	// too quickly! There should maybe be a pause after
	// the last Note Off? But I couldn't find one in the
	// MI1 Lookout music, where I was hearing problems.
	if (looped) {
		memcpy(ptr, "\x00\xf0\x13\x7d\x30\00", 6); ptr += 6; // maybe_jump
		memcpy(ptr, "\x00\x00", 2); ptr += 2;            // cmd -> 0 means always jump
		memcpy(ptr, "\x00\x00\x00\x00", 4); ptr += 4;    // track -> 0 (only track)
		memcpy(ptr, "\x00\x00\x00\x01", 4); ptr += 4;    // beat -> 1 (first beat)
		memcpy(ptr, "\x00\x00\x00\x01", 4); ptr += 4;    // tick -> 1
		memcpy(ptr, "\x00\xf7", 2); ptr += 2;            // SysEx end marker
	}

	// Insert end of song META
	memcpy(ptr, "\x00\xff\x2f\x00\x00", 5); ptr += 5;
	
	assert(ptr <= start_ptr + total_size);
	
	// Rewrite MIDI header, this time with true size
	total_size = ptr - start_ptr;
	ptr = writeMIDIHeader(start_ptr, "GMD ", ppqn, total_size);
#endif
}

void ScummEngine::convertADResource(int type, int idx, byte *src_ptr, int size) {

	// We will ignore the PPQN in the original resource, because
	// it's invalid anyway. We use a constant PPQN of 480.
	const int ppqn = 480;
	uint32 dw;
	int i, ch;
	byte *ptr;
	int total_size = kMIDIHeaderSize + 7 + 8 * sizeof(ADLIB_INSTR_MIDI_HACK) + size;
	total_size += 24;	// Up to 24 additional bytes are needed for the jump sysex
	
	ptr = createResource(type, idx, total_size);

	src_ptr += 2;
	size -= 2;

	// 0x80 marks a music resource. Otherwise it's a SFX
	if (*src_ptr == 0x80) {
		byte ticks, play_once;
		byte num_instr;
		byte *channel, *instr, *track;

		ptr = writeMIDIHeader(ptr, "ADL ", ppqn, total_size);

		// The "speed" of the song
		ticks = *(src_ptr + 1);
		
		// Flag that tells us whether we should loop the song (0) or play it only once (1)
		play_once = *(src_ptr + 2);
		
		// Number of instruments used
		num_instr = *(src_ptr + 8);	// Normally 8
		
		// copy the pointer to instrument data
		channel = src_ptr + 9;
		instr   = src_ptr + 0x11;
		
		// skip over the rest of the header and copy the MIDI data into a buffer
		src_ptr  += 0x11 + 8 * 16;
		size -= 0x11 + 8 * 16;

		CHECK_HEAP 
			
		track = src_ptr;
		
		// Convert the ticks into a MIDI tempo. 
		// Unfortunate LOOM and INDY3 have different interpretation
		// of the ticks value.
		if (_gameId == GID_INDY3) {
			// Note: since we fix ppqn at 480, ppqn/473 is almost 1
			dw = 500000 * 256 / 473 * ppqn / ticks;
		} else if (_gameId == GID_LOOM) {
			dw = 500000 * ppqn / 4 / ticks;
		} else {
			dw = 500000 * 256 / ticks;
		}
		debugC(DEBUG_SOUND, "  ticks = %d, speed = %ld", ticks, dw);
			
		// Write a tempo change Meta event
		memcpy(ptr, "\x00\xFF\x51\x03", 4); ptr += 4;
		*ptr++ = (byte)((dw >> 16) & 0xFF);
		*ptr++ = (byte)((dw >> 8) & 0xFF);
		*ptr++ = (byte)(dw & 0xFF);
		
		// Copy our hardcoded instrument table into it
		// Then, convert the instrument table as given in this song resource
		// And write it *over* the hardcoded table.
		// Note: we deliberately.
		
		/* now fill in the instruments */
		for (i = 0; i < num_instr; i++) {
			ch = channel[i] - 1;
			if (ch < 0 || ch > 15)
				continue;

			if (instr[i*16 + 13])
				warning("Sound %d instrument %d uses percussion", idx, i);

			debugC(DEBUG_SOUND, "Sound %d: instrument %d on channel %d.", idx, i, ch);

			memcpy(ptr, ADLIB_INSTR_MIDI_HACK, sizeof(ADLIB_INSTR_MIDI_HACK));

			ptr[5]  += ch;
			ptr[28] += ch;
			ptr[92] += ch;

			/* flags_1 */
			ptr[30 + 0] = (instr[i * 16 + 3] >> 4) & 0xf;
			ptr[30 + 1] = instr[i * 16 + 3] & 0xf;

			/* oplvl_1 */
			ptr[30 + 2] = (instr[i * 16 + 4] >> 4) & 0xf;
			ptr[30 + 3] = instr[i * 16 + 4] & 0xf;

			/* atdec_1 */
			ptr[30 + 4] = ((~instr[i * 16 + 5]) >> 4) & 0xf;
			ptr[30 + 5] = (~instr[i * 16 + 5]) & 0xf;

			/* sustrel_1 */
			ptr[30 + 6] = ((~instr[i * 16 + 6]) >> 4) & 0xf;
			ptr[30 + 7] = (~instr[i * 16 + 6]) & 0xf;

			/* waveform_1 */
			ptr[30 + 8] = (instr[i * 16 + 7] >> 4) & 0xf;
			ptr[30 + 9] = instr[i * 16 + 7] & 0xf;

			/* flags_2 */
			ptr[30 + 10] = (instr[i * 16 + 8] >> 4) & 0xf;
			ptr[30 + 11] = instr[i * 16 + 8] & 0xf;

			/* oplvl_2 */
			ptr[30 + 12] = (instr[i * 16 + 9] >> 4) & 0xf;
			ptr[30 + 13] = instr[i * 16 + 9] & 0xf;

			/* atdec_2 */
			ptr[30 + 14] = ((~instr[i * 16 + 10]) >> 4) & 0xf;
			ptr[30 + 15] = (~instr[i * 16 + 10]) & 0xf;

			/* sustrel_2 */
			ptr[30 + 16] = ((~instr[i * 16 + 11]) >> 4) & 0xf;
			ptr[30 + 17] = (~instr[i * 16 + 11]) & 0xf;

			/* waveform_2 */
			ptr[30 + 18] = (instr[i * 16 + 12] >> 4) & 0xf;
			ptr[30 + 19] = instr[i * 16 + 12] & 0xf;

			/* feedback */
			ptr[30 + 20] = (instr[i * 16 + 2] >> 4) & 0xf;
			ptr[30 + 21] = instr[i * 16 + 2] & 0xf;
			ptr += sizeof(ADLIB_INSTR_MIDI_HACK);
		}

		// There is a constant delay of ppqn/3 before the music starts.
		if (ppqn / 3 >= 128)
			*ptr++ = (ppqn / 3 >> 7) | 0x80;
		*ptr++ = ppqn / 3 & 0x7f;

		// Now copy the actual music data 
		memcpy(ptr, track, size);
		ptr += size;

		if (!play_once) {
			// The song is meant to be looped. We achieve this by inserting just
			// before the song end a jump to the song start. More precisely we abuse
			// a S&M sysex, "maybe_jump" to achieve this effect. We could also
			// use a set_loop sysex, but it's a bit longer, a little more complicated,
			// and has no advantage either.

			// First, find the track end
			byte *end = ptr;
			ptr -= size;
			for (; ptr < end; ptr++) {
				if (*ptr == 0xff && *(ptr + 1) == 0x2f)
					break;
			}
			assert(ptr < end);

			// Now insert the jump. The jump offset is measured in ticks.
			// We have ppqn/3 ticks before the first note.

			const int jump_offset = ppqn / 3;
			memcpy(ptr, "\xf0\x13\x7d\x30\00", 5); ptr += 5;	// maybe_jump
			memcpy(ptr, "\x00\x00", 2); ptr += 2;			// cmd -> 0 means always jump
			memcpy(ptr, "\x00\x00\x00\x00", 4); ptr += 4;	// track -> there is only one track, 0
			memcpy(ptr, "\x00\x00\x00\x01", 4); ptr += 4;	// beat -> for now, 1 (first beat)
			// Ticks
			*ptr++ = (byte)((jump_offset >> 12) & 0x0F);
			*ptr++ = (byte)((jump_offset >> 8) & 0x0F);
			*ptr++ = (byte)((jump_offset >> 4) & 0x0F);
			*ptr++ = (byte)(jump_offset & 0x0F);
			memcpy(ptr, "\x00\xf7", 2); ptr += 2;	// sysex end marker
		}
	} else {

		/* This is a sfx resource.  First parse it quickly to find the parallel
		 * tracks.
		 */
		ptr = writeMIDIHeader(ptr, "ASFX", ppqn, total_size);

		byte current_instr[3][14];
		int  current_note[3];
		int track_time[3];
		byte *track_data[3];

		int track_ctr = 0;
		byte chunk_type = 0;
		int delay, delay2, olddelay;

		// Write a tempo change Meta event
		// 473 / 4 Hz, convert to micro seconds.
		dw = 1000000 * ppqn * 4 / 473;
		memcpy(ptr, "\x00\xFF\x51\x03", 4); ptr += 4;
		*ptr++ = (byte)((dw >> 16) & 0xFF);
		*ptr++ = (byte)((dw >> 8) & 0xFF);
		*ptr++ = (byte)(dw & 0xFF);

		for (i = 0; i < 3; i++) {
			track_time[i] = -1;
			current_note[i] = -1;
		}
		while (size > 0) {
			assert(track_ctr < 3);
			track_data[track_ctr] = src_ptr;
			track_time[track_ctr] = 0;
			track_ctr++;
			while (size > 0) {
				chunk_type = *(src_ptr);
				if (chunk_type == 1) {
					src_ptr += 15;
					size -= 15;
				} else if (chunk_type == 2) {
					src_ptr += 11;
					size -= 11;
				} else if (chunk_type == 0x80) {
					src_ptr ++;
					size --;
				} else {
					break;
				}
			}
			if (chunk_type == 0xff)
				break;
			src_ptr++;
		}

		int curtime = 0;
		for (;;) {
			int mintime = -1;
			ch = -1;
			for (i = 0; i < 3; i++) {
				if (track_time[i] >= 0 && 
					(mintime == -1 || mintime > track_time[i])) {
					mintime = track_time[i];
					ch = i;
				}
			}
			if (mintime < 0)
				break;

			src_ptr = track_data[ch];
			chunk_type = *src_ptr;

			if (current_note[ch] >= 0) {
				delay = mintime - curtime;
				curtime = mintime;
				ptr = writeVLQ(ptr, delay);
				*ptr++ = 0x80 + ch; // key off channel;
				*ptr++ = current_note[ch];
				*ptr++ = 0;
				current_note[ch] = -1;
			}

			switch (chunk_type) {
			case 1:
				/* Instrument definition */
				memcpy(current_instr[ch], src_ptr + 1, 14);
				src_ptr += 15;
				break;

			case 2:
				/* tone/parammodulation */
				memcpy(ptr, ADLIB_INSTR_MIDI_HACK, 
					   sizeof(ADLIB_INSTR_MIDI_HACK));

				ptr[5]  += ch;
				ptr[28] += ch;
				ptr[92] += ch;

				/* flags_1 */
				ptr[30 + 0] = (current_instr[ch][3] >> 4) & 0xf;
				ptr[30 + 1] = current_instr[ch][3] & 0xf;

				/* oplvl_1 */
				ptr[30 + 2] = (current_instr[ch][4] >> 4) & 0xf;
				ptr[30 + 3] = current_instr[ch][4] & 0xf;

				/* atdec_1 */
				ptr[30 + 4] = ((~current_instr[ch][5]) >> 4) & 0xf;
				ptr[30 + 5] = (~current_instr[ch][5]) & 0xf;

				/* sustrel_1 */
				ptr[30 + 6] = ((~current_instr[ch][6]) >> 4) & 0xf;
				ptr[30 + 7] = (~current_instr[ch][6]) & 0xf;

				/* waveform_1 */
				ptr[30 + 8] = (current_instr[ch][7] >> 4) & 0xf;
				ptr[30 + 9] = current_instr[ch][7] & 0xf;

				/* flags_2 */
				ptr[30 + 10] = (current_instr[ch][8] >> 4) & 0xf;
				ptr[30 + 11] = current_instr[ch][8] & 0xf;

				/* oplvl_2 */
				ptr[30 + 12] = ((current_instr[ch][9]) >> 4) & 0xf;
				ptr[30 + 13] = (current_instr[ch][9]) & 0xf;

				/* atdec_2 */
				ptr[30 + 14] = ((~current_instr[ch][10]) >> 4) & 0xf;
				ptr[30 + 15] = (~current_instr[ch][10]) & 0xf;

				/* sustrel_2 */
				ptr[30 + 16] = ((~current_instr[ch][11]) >> 4) & 0xf;
				ptr[30 + 17] = (~current_instr[ch][11]) & 0xf;

				/* waveform_2 */
				ptr[30 + 18] = (current_instr[ch][12] >> 4) & 0xf;
				ptr[30 + 19] = current_instr[ch][12] & 0xf;

				/* feedback */
				ptr[30 + 20] = (current_instr[ch][2] >> 4) & 0xf;
				ptr[30 + 21] = current_instr[ch][2] & 0xf;

				delay = mintime - curtime;
				curtime = mintime;

				{
					delay = convert_extraflags(ptr + 30 + 22, src_ptr + 1);
					delay2 = convert_extraflags(ptr + 30 + 40, src_ptr + 6);
					debugC(DEBUG_SOUND, "delays: %d / %d", delay, delay2);
					if (delay2 >= 0 && delay2 < delay)
						delay = delay2;
					if (delay == -1)
						delay = 0;
				}

				/* duration */
				ptr[30 + 58] = 0; // ((delay * 17 / 63) >> 4) & 0xf;
				ptr[30 + 59] = 0; // (delay * 17 / 63) & 0xf;

				ptr += sizeof(ADLIB_INSTR_MIDI_HACK);

				olddelay = mintime - curtime;
				curtime = mintime;
				ptr = writeVLQ(ptr, olddelay);

				{
					int freq = ((current_instr[ch][1] & 3) << 8)
						| current_instr[ch][0];
					if (!freq)
						freq = 0x80;
					freq <<= ((current_instr[ch][1] >> 2) & 7) + 1;
					int note = -11;
					while (freq >= 0x100) {
						note += 12;
						freq >>= 1;
					}
					debugC(DEBUG_SOUND, "Freq: %d (%x) Note: %d", freq, freq, note);
					if (freq < 0x80)
						note = 0;
					else
						note += freq2note[freq - 0x80];
	
					debugC(DEBUG_SOUND, "Note: %d", note);
					if (note <= 0)
						note = 1;
					else if (note > 127)
						note = 127;

					// Insert a note on event 
					*ptr++ = 0x90 + ch; // key on channel
					*ptr++ = note;
					*ptr++ = 63;
					current_note[ch] = note;
					track_time[ch] = curtime + delay;
				}
				src_ptr += 11;
				break;

			case 0x80:
				track_time[ch] = -1;
				src_ptr ++;
				break;

			default:
				track_time[ch] = -1;
			}
			track_data[ch] = src_ptr;
		}
	}

	// Insert end of song sysex
	memcpy(ptr, "\x00\xff\x2f\x00\x00", 5); ptr += 5;
}


int ScummEngine::readSoundResourceSmallHeader(int type, int idx) {
	uint32 pos, total_size, size, tag;
	uint32 ad_size = 0, ad_offs = 0;
	uint32 ro_size = 0, ro_offs = 0;
	uint32 wa_size = 0, wa_offs = 0;

	debug(4, "readSoundResourceSmallHeader(%s,%d)", resTypeFromId(type), idx);

	if ((_gameId == GID_LOOM) && (_features & GF_PC) && VAR(VAR_SOUNDCARD) == 4) {
		// Roland resources in Loom are tagless
		// So we add an RO tag to allow imuse to detect format
		byte *ptr, *src_ptr;
		ro_offs = _fileHandle.pos();
		ro_size = _fileHandle.readUint16LE();

		src_ptr = (byte *) calloc(ro_size - 4, 1);
		_fileHandle.seek(ro_offs + 4, SEEK_SET);
		_fileHandle.read(src_ptr, ro_size -4);

		ptr = createResource(type, idx, ro_size + 2);
		memcpy(ptr, "RO", 2); ptr += 2;
		memcpy(ptr, src_ptr, ro_size - 4); ptr += ro_size - 4;
		return 1;
	} else if (_features & GF_OLD_BUNDLE) {
		wa_offs = _fileHandle.pos();
		wa_size = _fileHandle.readUint16LE();
		_fileHandle.seek(wa_size - 2, SEEK_CUR);

		if (!(_features & GF_ATARI_ST || _features & GF_MACINTOSH)) {
			ad_offs = _fileHandle.pos();
			ad_size = _fileHandle.readUint16LE();
		}
		_fileHandle.seek(4, SEEK_CUR);
		total_size = wa_size + ad_size;
	} else {
		total_size = size = _fileHandle.readUint32LE();
		tag = _fileHandle.readUint16LE();
		debug(4, "  tag='%c%c', size=%d", (char) (tag & 0xff),
				(char) ((tag >> 8) & 0xff), size);

		if (tag == 0x4F52) { // RO
			ro_offs = _fileHandle.pos();
			ro_size = size;
		} else {
			pos = 6;
			while (pos < total_size) {
				size = _fileHandle.readUint32LE();
				tag = _fileHandle.readUint16LE();
				debug(4, "  tag='%c%c', size=%d", (char) (tag & 0xff),
						(char) ((tag >> 8) & 0xff), size);
				pos += size;

				// MI1 and Indy3 uses one or more nested SO resources, which contains AD and WA
				// resources.
				if ((tag == 0x4441) && !(ad_offs)) { // AD
					ad_size = size;
					ad_offs = _fileHandle.pos();
				} else if ((tag == 0x4157) && !(wa_offs)) { // WA
					wa_size = size;
					wa_offs = _fileHandle.pos();
				} else { // other AD, WA and nested SO resources
					if (tag == 0x4F53) { // SO
						pos -= size;
						size = 6;
						pos += 6;
					}
				}
				_fileHandle.seek(size - 6, SEEK_CUR);
			}
		}
	}

	if ((_midiDriver == MD_ADLIB) && ad_offs != 0) {
		// AD resources have a header, instrument definitions and one MIDI track.
		// We build an 'ADL ' resource from that:
		//   8 bytes resource header
		//  16 bytes MDhd header
		//  14 bytes MThd header
		//   8 bytes MTrk header
		//   7 bytes MIDI tempo sysex
		//     + some default instruments
		byte *ptr;
		if (_features & GF_OLD_BUNDLE) {
			ptr = (byte *) calloc(ad_size - 4, 1);
			_fileHandle.seek(ad_offs + 4, SEEK_SET);
			_fileHandle.read(ptr, ad_size - 4);
			convertADResource(type, idx, ptr, ad_size - 4);
			free(ptr);
			return 1;
		} else {
			ptr = (byte *) calloc(ad_size - 6, 1);
			_fileHandle.seek(ad_offs, SEEK_SET);
			_fileHandle.read(ptr, ad_size - 6);
			convertADResource(type, idx, ptr, ad_size - 6);
			free(ptr);
			return 1;
		} 
	} else if (((_midiDriver == MD_PCJR) || (_midiDriver == MD_PCSPK)) && wa_offs != 0) {
		if (_features & GF_OLD_BUNDLE) {
			_fileHandle.seek(wa_offs, SEEK_SET);
			_fileHandle.read(createResource(type, idx, wa_size), wa_size);
		} else {
			_fileHandle.seek(wa_offs - 6, SEEK_SET);
			_fileHandle.read(createResource(type, idx, wa_size + 6), wa_size + 6);
		}
		return 1;
	} else if (ro_offs != 0) {
		_fileHandle.seek(ro_offs - 2, SEEK_SET);
		_fileHandle.read(createResource(type, idx, ro_size - 4), ro_size - 4);
		return 1;
	}
	res.roomoffs[type][idx] = 0xFFFFFFFF;
	return 0;
}

int ScummEngine::getResourceRoomNr(int type, int idx) {
	if (type == rtRoom && _heversion < 70)
		return idx;
	return res.roomno[type][idx];
}

int ScummEngine::getResourceSize(int type, int idx) {
	byte *ptr = getResourceAddress(type, idx);
	MemBlkHeader *hdr = (MemBlkHeader *)(ptr - sizeof(MemBlkHeader));
	
	return hdr->size;
}

byte *ScummEngine::getResourceAddress(int type, int idx) {
	byte *ptr;

	CHECK_HEAP
	if (!validateResource("getResourceAddress", type, idx))
		return NULL;

	if (!res.address[type]) {
		debugC(DEBUG_RESOURCE, "getResourceAddress(%s,%d), res.address[type] == NULL", resTypeFromId(type), idx);
		return NULL;
	}

	if (res.mode[type] && !res.address[type][idx]) {
		ensureResourceLoaded(type, idx);
	}

	if (!(ptr = (byte *)res.address[type][idx])) {
		debugC(DEBUG_RESOURCE, "getResourceAddress(%s,%d) == NULL", resTypeFromId(type), idx);
		return NULL;
	}

	setResourceCounter(type, idx, 1);

	debugC(DEBUG_RESOURCE, "getResourceAddress(%s,%d) == %p", resTypeFromId(type), idx, ptr + sizeof(MemBlkHeader));
	return ptr + sizeof(MemBlkHeader);
}

byte *ScummEngine::getStringAddress(int i) {
	byte *b = getResourceAddress(rtString, i);
	if (!b)
		return NULL;

	if (_heversion >= 72)
		return (b + 0x14); // ArrayHeader->data

	if (_features & GF_NEW_OPCODES)
		return ((ArrayHeader *)b)->data;
	return b;
}

byte *ScummEngine::getStringAddressVar(int i) {
	byte *addr;

	addr = getResourceAddress(rtString, _scummVars[i]);
	if (addr == NULL)
		// as this is used for string mapping in the gui
		// it must be allowed to return NULL
		// error("NULL string var %d slot %d", i, _scummVars[i]);
		return NULL;

	if (_heversion >= 72)
		return (addr + 0x14); // ArrayHeader->data

	if (_features & GF_NEW_OPCODES)
		return ((ArrayHeader *)addr)->data;

	return (addr);
}

void ScummEngine::setResourceCounter(int type, int idx, byte flag) {
	res.flags[type][idx] &= ~RF_USAGE;
	res.flags[type][idx] |= flag;
}

/* 2 bytes safety area to make "precaching" of bytes in the gdi drawer easier */
#define SAFETY_AREA 2

byte *ScummEngine::createResource(int type, int idx, uint32 size) {
	byte *ptr;

	CHECK_HEAP
	debugC(DEBUG_RESOURCE, "createResource(%s,%d,%d)", resTypeFromId(type), idx, size);

	if (!validateResource("allocating", type, idx))
		return NULL;
	nukeResource(type, idx);

	expireResources(size);

	CHECK_HEAP
	ptr = (byte *)calloc(size + sizeof(MemBlkHeader) + SAFETY_AREA, 1);
	if (ptr == NULL) {
		error("Out of memory while allocating %d", size);
	}

	_allocatedSize += size;

	res.address[type][idx] = ptr;
	((MemBlkHeader *)ptr)->size = size;
	setResourceCounter(type, idx, 1);
	return ptr + sizeof(MemBlkHeader);	/* skip header */
}

bool ScummEngine::validateResource(const char *str, int type, int idx) const {
	if (type < rtFirst || type > rtLast || (uint) idx >= (uint) res.num[type]) {
		warning("%s Illegal Glob type %s (%d) num %d", str, resTypeFromId(type), type, idx);
		return false;
	}
	return true;
}

void ScummEngine::nukeResource(int type, int idx) {
	byte *ptr;

	CHECK_HEAP
	if (!res.address[type])
		return;

	assert(idx >= 0 && idx < res.num[type]);

	if ((ptr = res.address[type][idx]) != NULL) {
		debugC(DEBUG_RESOURCE, "nukeResource(%s,%d)", resTypeFromId(type), idx);
		res.address[type][idx] = 0;
		res.flags[type][idx] = 0;
		_allocatedSize -= ((MemBlkHeader *)ptr)->size;
		free(ptr);
	}
}

const byte *ScummEngine::findResourceData(uint32 tag, const byte *ptr) {
	if (_features & GF_OLD_BUNDLE)
		error("findResourceData must not be used in GF_OLD_BUNDLE games");
	else if (_features & GF_SMALL_HEADER)
		ptr = findResourceSmall(tag, ptr);
	else
		ptr = findResource(tag, ptr);

	if (ptr == NULL)
		return NULL;
	return ptr + _resourceHeaderSize;
}

int ScummEngine::getResourceDataSize(const byte *ptr) const {
	if (ptr == NULL)
		return 0;

	if (_features & GF_OLD_BUNDLE)
		return READ_LE_UINT16(ptr) - 4;
	else if (_features & GF_SMALL_HEADER)
		return READ_LE_UINT32(ptr) - 6;
	else
		return READ_BE_UINT32(ptr - 4) - 8;
}

void ScummEngine::lock(int type, int i) {
	if (!validateResource("Locking", type, i))
		return;
	res.flags[type][i] |= RF_LOCK;
}

void ScummEngine::unlock(int type, int i) {
	if (!validateResource("Unlocking", type, i))
		return;
	res.flags[type][i] &= ~RF_LOCK;
}

bool ScummEngine::isResourceInUse(int type, int i) const {
	if (!validateResource("isResourceInUse", type, i))
		return false;
	switch (type) {
	case rtRoom:
		return _roomResource == (byte)i;
	case rtRoomScripts:
		return _roomResource == (byte)i;
	case rtScript:
		return isScriptInUse(i);
	case rtCostume:
		return isCostumeInUse(i);
	case rtSound:
		return _sound->isSoundInUse(i);
	default:
		return false;
	}
}

void ScummEngine::increaseResourceCounter() {
	int i, j;
	byte counter;

	for (i = rtFirst; i <= rtLast; i++) {
		for (j = res.num[i]; --j >= 0;) {
			counter = res.flags[i][j] & RF_USAGE;
			if (counter && counter < RF_USAGE_MAX) {
				setResourceCounter(i, j, counter + 1);
			}
		}
	}
}

void ScummEngine::expireResources(uint32 size) {
	int i, j;
	byte flag;
	byte best_counter;
	int best_type, best_res = 0;
	uint32 oldAllocatedSize;

	if (_expire_counter != 0xFF) {
		_expire_counter = 0xFF;
		increaseResourceCounter();
	}

	if (size + _allocatedSize < _maxHeapThreshold)
		return;

	oldAllocatedSize = _allocatedSize;

	do {
		best_type = 0;
		best_counter = 2;

		for (i = rtFirst; i <= rtLast; i++)
			if (res.mode[i]) {
				for (j = res.num[i]; --j >= 0;) {
					flag = res.flags[i][j];
					if (!(flag & RF_LOCK) && flag >= best_counter && res.address[i][j] && !isResourceInUse(i, j)) {
						best_counter = flag;
						best_type = i;
						best_res = j;
					}
				}
			}

		if (!best_type)
			break;
		nukeResource(best_type, best_res);
	} while (size + _allocatedSize > _minHeapThreshold);

	increaseResourceCounter();

	debugC(DEBUG_RESOURCE, "Expired resources, mem %d -> %d", oldAllocatedSize, _allocatedSize);
}

void ScummEngine::freeResources() {
	int i, j;
	for (i = rtFirst; i <= rtLast; i++) {
		for (j = res.num[i]; --j >= 0;) {
			if (isResourceLoaded(i, j))
				nukeResource(i, j);
		}
		free(res.address[i]);
		free(res.flags[i]);
		free(res.roomno[i]);
		free(res.roomoffs[i]);

		if (_heversion >= 70)
			free(res.globsize[i]);
	}
	if (_heversion >= 70) {
		free(_HEV7RoomIntOffsets);
		free(_HEV7RoomOffsets);
	}
}

void ScummEngine::loadPtrToResource(int type, int resindex, const byte *source) {
	byte *alloced;
	int i, len;

	nukeResource(type, resindex);

	len = resStrLen(source) + 1;

	if (len <= 0)
		return;

	alloced = createResource(type, resindex, len);

	if (!source) {
		alloced[0] = fetchScriptByte();
		for (i = 1; i < len; i++)
			alloced[i] = *_scriptPointer++;
	} else {
		for (i = 0; i < len; i++)
			alloced[i] = source[i];
	}
}

bool ScummEngine::isResourceLoaded(int type, int idx) const {
	if (!validateResource("isResourceLoaded", type, idx))
		return false;
	return res.address[type][idx] != NULL;
}

void ScummEngine::resourceStats() {
	int i, j;
	uint32 lockedSize = 0, lockedNum = 0;
	byte flag;

	for (i = rtFirst; i <= rtLast; i++)
		for (j = res.num[i]; --j >= 0;) {
			flag = res.flags[i][j];
			if (flag & RF_LOCK && res.address[i][j]) {
				lockedSize += ((MemBlkHeader *)res.address[i][j])->size;
				lockedNum++;
			}
		}

	debug(1, "Total allocated size=%d, locked=%d(%d)", _allocatedSize, lockedSize, lockedNum);
}

void ScummEngine::readMAXS(int blockSize) {
	debug(9, "readMAXS: MAXS has blocksize %d", blockSize);

	if (_version == 8) {                    // CMI
		_fileHandle.seek(50 + 50, SEEK_CUR);            // 176 - 8
		_numVariables = _fileHandle.readUint32LE();     // 1500
		_numBitVariables = _fileHandle.readUint32LE();  // 2048
		_fileHandle.readUint32LE();                     // 40
		_numScripts = _fileHandle.readUint32LE();       // 458
		_numSounds = _fileHandle.readUint32LE();        // 789
		_numCharsets = _fileHandle.readUint32LE();      // 1
		_numCostumes = _fileHandle.readUint32LE();      // 446
		_numRooms = _fileHandle.readUint32LE();         // 95
		_fileHandle.readUint32LE();                     // 80
		_numGlobalObjects = _fileHandle.readUint32LE(); // 1401
		_fileHandle.readUint32LE();                     // 60
		_numLocalObjects = _fileHandle.readUint32LE();  // 200
		_numNewNames = _fileHandle.readUint32LE();      // 100
		_numFlObject = _fileHandle.readUint32LE();      // 128
		_numInventory = _fileHandle.readUint32LE();     // 80
		_numArray = _fileHandle.readUint32LE();         // 200
		_numVerbs = _fileHandle.readUint32LE();         // 50

		_objectRoomTable = (byte *)calloc(_numGlobalObjects, 1);
		_numGlobalScripts = 2000;

		_shadowPaletteSize = NUM_SHADOW_PALETTE * 256;
	} else if (_version == 7) {
		_fileHandle.seek(50 + 50, SEEK_CUR);
		_numVariables = _fileHandle.readUint16LE();
		_numBitVariables = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE();                      // 40 in FT; 16 in Dig
		_numGlobalObjects = _fileHandle.readUint16LE();
		_numLocalObjects = _fileHandle.readUint16LE();
		_numNewNames = _fileHandle.readUint16LE();
		_numVerbs = _fileHandle.readUint16LE();
		_numFlObject = _fileHandle.readUint16LE();
		_numInventory = _fileHandle.readUint16LE();
		_numArray = _fileHandle.readUint16LE();
		_numRooms = _fileHandle.readUint16LE();
		_numScripts = _fileHandle.readUint16LE();
		_numSounds = _fileHandle.readUint16LE();
		_numCharsets = _fileHandle.readUint16LE();
		_numCostumes = _fileHandle.readUint16LE();

		_objectRoomTable = (byte *)calloc(_numGlobalObjects, 1);

		if ((_gameId == GID_FT) && (_features & GF_DEMO) && 
		    (_features & GF_PC))
			_numGlobalScripts = 300;
		else
			_numGlobalScripts = 2000;

		_shadowPaletteSize = NUM_SHADOW_PALETTE * 256;
	} else if (_heversion >= 70 && (blockSize == 44 + 8)) { // C++ based engine
		_numVariables = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE();
		_fileHandle.readUint16LE();
		_numLocalObjects = _fileHandle.readUint16LE();
		_numArray = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE(); // unknown
		_fileHandle.readUint16LE(); // unknown
		_numFlObject = _fileHandle.readUint16LE();
		_numInventory = _fileHandle.readUint16LE();
		_numRooms = _fileHandle.readUint16LE();
		_numScripts = _fileHandle.readUint16LE();
		_numSounds = _fileHandle.readUint16LE();
		_numCharsets = _fileHandle.readUint16LE();
		_numCostumes = _fileHandle.readUint16LE();
		_numGlobalObjects = _fileHandle.readUint16LE();
		_numImages = _fileHandle.readUint16LE();
		_numSprites = _fileHandle.readUint16LE();
		_numLocalScriptOffsets = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE(); // heap related
		_fileHandle.readUint16LE(); // _numPalettes?
		_fileHandle.readUint16LE(); // _numSmacker?
		_numTalkies = _fileHandle.readUint16LE();
		_numNewNames = 10;

		_objectRoomTable = (byte *)calloc(_numGlobalObjects, 1);
		_numRoomVariables = 64;
		_numGlobalScripts = 200;

	} else if (_heversion >= 70 && (blockSize == 38 + 8)) { // Scummsys.9x
		_numVariables = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE();
		_fileHandle.readUint16LE();
		_numLocalObjects = _fileHandle.readUint16LE();
		_numArray = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE(); // unknown
		_fileHandle.readUint16LE(); // unknown
		_numFlObject = _fileHandle.readUint16LE();
		_numInventory = _fileHandle.readUint16LE();
		_numRooms = _fileHandle.readUint16LE();
		_numScripts = _fileHandle.readUint16LE();
		_numSounds = _fileHandle.readUint16LE();
		_numCharsets = _fileHandle.readUint16LE();
		_numCostumes = _fileHandle.readUint16LE();
		_numGlobalObjects = _fileHandle.readUint16LE();
		_numImages = _fileHandle.readUint16LE();
		_numSprites = _fileHandle.readUint16LE();
		_numLocalScriptOffsets = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE(); // heap releated
		_numNewNames = 10;

		_objectRoomTable = (byte *)calloc(_numGlobalObjects, 1);
		_numRoomVariables = 64;
		_numGlobalScripts = 200;

	} else if (_heversion >= 70 && blockSize > 38) { // sputm7.2
		if (blockSize != 32 + 8)
				error("MAXS block of size %d not supported, please report", blockSize);
		_numVariables = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE();
		_numBitVariables = _numRoomVariables = _fileHandle.readUint16LE();
		_numLocalObjects = _fileHandle.readUint16LE();
		_numArray = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE();
		_numVerbs = _fileHandle.readUint16LE();
		_numFlObject = _fileHandle.readUint16LE();
		_numInventory = _fileHandle.readUint16LE();
		_numRooms = _fileHandle.readUint16LE();
		_numScripts = _fileHandle.readUint16LE();
		_numSounds = _fileHandle.readUint16LE();
		_numCharsets = _fileHandle.readUint16LE();
		_numCostumes = _fileHandle.readUint16LE();
		_numGlobalObjects = _fileHandle.readUint16LE();
		_numImages = _fileHandle.readUint16LE();
		_numNewNames = 10;

		_objectRoomTable = (byte *)calloc(_numGlobalObjects, 1);
		_numGlobalScripts = 200;

	} else if (_version == 6) {
		if (blockSize != 30 + 8)
			error("MAXS block of size %d not supported", blockSize);
		_numVariables = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE();                      // 16 in Sam/DOTT
		_numBitVariables = _fileHandle.readUint16LE();
		_numLocalObjects = _fileHandle.readUint16LE();
		_numArray = _fileHandle.readUint16LE();
		_fileHandle.readUint16LE();                      // 0 in Sam/DOTT
		_numVerbs = _fileHandle.readUint16LE();
		_numFlObject = _fileHandle.readUint16LE();
		_numInventory = _fileHandle.readUint16LE();
		_numRooms = _fileHandle.readUint16LE();
		_numScripts = _fileHandle.readUint16LE();
		_numSounds = _fileHandle.readUint16LE();
		_numCharsets = _fileHandle.readUint16LE();
		_numCostumes = _fileHandle.readUint16LE();
		_numGlobalObjects = _fileHandle.readUint16LE();
		_numNewNames = 50;

		_objectRoomTable = NULL;
		_numGlobalScripts = 200;

		_shadowPaletteSize = 256;

		if (_heversion >= 70) {
			_objectRoomTable = (byte *)calloc(_numGlobalObjects, 1);
		}
	} else {
		_numVariables = _fileHandle.readUint16LE();      // 800
		_fileHandle.readUint16LE();                      // 16
		_numBitVariables = _fileHandle.readUint16LE();   // 2048
		_numLocalObjects = _fileHandle.readUint16LE();   // 200
		_numArray = 50;
		_numVerbs = 100;
		// Used to be 50, which wasn't enough for MI2 and FOA. See bugs
		// #933610, #936323 and #941275.
		_numNewNames = 150;
		_objectRoomTable = NULL;

		_fileHandle.readUint16LE();                      // 50
		_numCharsets = _fileHandle.readUint16LE();       // 9
		_fileHandle.readUint16LE();                      // 100
		_fileHandle.readUint16LE();                      // 50
		_numInventory = _fileHandle.readUint16LE();      // 80
		_numGlobalScripts = 200;

		_shadowPaletteSize = 256;

		_numFlObject = 50;
	}

	if (_shadowPaletteSize)
		_shadowPalette = (byte *)calloc(_shadowPaletteSize, 1);

	allocateArrays();
	_dynamicRoomOffsets = true;
}

void ScummEngine::allocateArrays() {
	// Note: Buffers are now allocated in scummMain to allow for
	//     early GUI init.

	_objectOwnerTable = (byte *)calloc(_numGlobalObjects, 1);
	_objectStateTable = (byte *)calloc(_numGlobalObjects, 1);
	_classData = (uint32 *)calloc(_numGlobalObjects, sizeof(uint32));
	_newNames = (uint16 *)calloc(_numNewNames, sizeof(uint16));

	_inventory = (uint16 *)calloc(_numInventory, sizeof(uint16));
	_verbs = (VerbSlot *)calloc(_numVerbs, sizeof(VerbSlot));
	_objs = (ObjectData *)calloc(_numLocalObjects, sizeof(ObjectData));
	_roomVars = (int32 *)calloc(_numRoomVariables, sizeof(int32));
	_scummVars = (int32 *)calloc(_numVariables, sizeof(int32));
	_bitVars = (byte *)calloc(_numBitVariables >> 3, 1);
	_images = (uint16 *)calloc(_numImages, sizeof(uint16));
	if (_features & GF_HUMONGOUS)
		_arraySlot = (byte *)calloc(_numArray, 1);

	allocResTypeData(rtCostume, (_features & GF_NEW_COSTUMES) ? MKID('AKOS') : MKID('COST'),
								_numCostumes, "costume", 1);
	allocResTypeData(rtRoom, MKID('ROOM'), _numRooms, "room", 1);
	allocResTypeData(rtRoomScripts, MKID('RMSC'), _numRooms, "room script", 1);
	allocResTypeData(rtSound, MKID('SOUN'), _numSounds, "sound", 2);
	allocResTypeData(rtScript, MKID('SCRP'), _numScripts, "script", 1);
	allocResTypeData(rtCharset, MKID('CHAR'), _numCharsets, "charset", 1);
	allocResTypeData(rtObjectName, MKID('NONE'), _numNewNames, "new name", 0);
	allocResTypeData(rtInventory, MKID('NONE'), _numInventory, "inventory", 0);
	allocResTypeData(rtTemp, MKID('NONE'), 10, "temp", 0);
	allocResTypeData(rtScaleTable, MKID('NONE'), 5, "scale table", 0);
	allocResTypeData(rtActorName, MKID('NONE'), _numActors, "actor name", 0);
	allocResTypeData(rtVerb, MKID('NONE'), _numVerbs, "verb", 0);
	allocResTypeData(rtString, MKID('NONE'), _numArray, "array", 0);
	allocResTypeData(rtFlObject, MKID('NONE'), _numFlObject, "flobject", 0);
	allocResTypeData(rtMatrix, MKID('NONE'), 10, "boxes", 0);
	allocResTypeData(rtImage, MKID('AWIZ'), _numImages, "images", 1);
	allocResTypeData(rtRoomImage, MKID('RMIM'), _numRooms, "room image", 1);
	allocResTypeData(rtTalkie, MKID('TLKE'), _numTalkies, "talkie", 1);

}

void ScummEngine::dumpResource(const char *tag, int idx, const byte *ptr, int length) {
	char buf[256];
	File out;

	uint32 size;
	if (length >= 0)
		size = length;
	else if (_features & GF_OLD_BUNDLE)
		size = READ_LE_UINT16(ptr);
	else if (_features & GF_SMALL_HEADER)
		size = READ_LE_UINT32(ptr);
	else
		size = READ_BE_UINT32(ptr + 4);

#if defined(MACOS_CARBON)
	sprintf(buf, ":dumps:%s%d.dmp", tag, idx);
#else
	sprintf(buf, "dumps/%s%d.dmp", tag, idx);
#endif

	out.open(buf, File::kFileWriteMode, "");
	if (out.isOpen() == false)
		return;
	out.write(ptr, size);
	out.close();
}

ResourceIterator::ResourceIterator(const byte *searchin, bool smallHeader)
	: _ptr(searchin), _smallHeader(smallHeader) {
	assert(searchin);
	if (_smallHeader) {
		_size = READ_LE_UINT32(searchin);
		_pos = 6;
		_ptr = searchin + 6;
	} else {
		_size = READ_BE_UINT32(searchin + 4);
		_pos = 8;
		_ptr = searchin + 8;
	}
	
}

const byte *ResourceIterator::findNext(uint32 tag) {
	uint32 size = 0;
	const byte *result = 0;
	
	if (_smallHeader) {
		uint16 smallTag = newTag2Old(tag);
		do {
			if (_pos >= _size)
				return 0;
	
			result = _ptr;
			size = READ_LE_UINT32(result);
			if ((int32)size <= 0)
				return 0;	// Avoid endless loop
			
			_pos += size;
			_ptr += size;
		} while (READ_LE_UINT16(result + 4) != smallTag);
	} else {
		do {
			if (_pos >= _size)
				return 0;
	
			result = _ptr;
			size = READ_BE_UINT32(result + 4);
			if ((int32)size <= 0)
				return 0;	// Avoid endless loop
			
			_pos += size;
			_ptr += size;
		} while (READ_UINT32(result) != tag);
	}

	return result;
}

const byte *ScummEngine::findResource(uint32 tag, const byte *searchin) {
	uint32 curpos, totalsize, size;

	debugC(DEBUG_RESOURCE, "findResource(%s, %lx)", tag2str(tag), searchin);

	if (!searchin) {
		if (_heversion >= 70) {
			searchin = _resourceLastSearchBuf;
			totalsize = _resourceLastSearchSize;
			curpos = 0;
		} else {
			assert(searchin);
			return NULL;
		}
	} else {
		searchin += 4;
		_resourceLastSearchSize = totalsize = READ_BE_UINT32(searchin);
		curpos = 8;
		searchin += 4;
	}

	while (curpos < totalsize) {
		if (READ_UINT32(searchin) == tag) {
			_resourceLastSearchBuf = searchin;
			return searchin;
		}

		size = READ_BE_UINT32(searchin + 4);
		if ((int32)size <= 0) {
			error("(%s) Not found in %d... illegal block len %d", tag2str(tag), 0, size);
			return NULL;
		}

		curpos += size;
		searchin += size;
	}

	return NULL;
}

const byte *findResourceSmall(uint32 tag, const byte *searchin) {
	uint32 curpos, totalsize, size;
	uint16 smallTag;

	smallTag = newTag2Old(tag);
	if (smallTag == 0)
		return NULL;

	assert(searchin);

	totalsize = READ_LE_UINT32(searchin);
	searchin += 6;
	curpos = 6;

	while (curpos < totalsize) {
		size = READ_LE_UINT32(searchin);

		if (READ_LE_UINT16(searchin + 4) == smallTag)
			return searchin;

		if ((int32)size <= 0) {
			error("(%s) Not found in %d... illegal block len %d", tag2str(tag), 0, size);
			return NULL;
		}

		curpos += size;
		searchin += size;
	}

	return NULL;
}

uint16 newTag2Old(uint32 oldTag) {
	switch (oldTag) {
	case (MKID('RMHD')):
		return (0x4448);	// HD
	case (MKID('IM00')):
		return (0x4D42);	// BM
	case (MKID('EXCD')):
		return (0x5845);	// EX
	case (MKID('ENCD')):
		return (0x4E45);	// EN
	case (MKID('SCAL')):
		return (0x4153);	// SA
	case (MKID('LSCR')):
		return (0x534C);	// LS
	case (MKID('OBCD')):
		return (0x434F);	// OC
	case (MKID('OBIM')):
		return (0x494F);	// OI
	case (MKID('SMAP')):
		return (0x4D42);	// BM
	case (MKID('CLUT')):
		return (0x4150);	// PA
	case (MKID('BOXD')):
		return (0x5842);	// BX
	case (MKID('CYCL')):
		return (0x4343);	// CC
	case (MKID('EPAL')):
		return (0x5053);	// SP
	default:
		return (0);
	}
}

const char *resTypeFromId(int id) {
	static char buf[100];

	switch (id) {
	case rtRoom:
		return "Room";
	case rtScript:
		return "Script";
	case rtCostume:
		return "Costume";
	case rtSound:
		return "Sound";
	case rtInventory:
		return "Inventory";
	case rtCharset:
		return "Charset";
	case rtString:
		return "String";
	case rtVerb:
		return "Verb";
	case rtActorName:
		return "ActorName";
	case rtBuffer:
		return "Buffer";
	case rtScaleTable:
		return "ScaleTable";
	case rtTemp:
		return "Temp";
	case rtFlObject:
		return "FlObject";
	case rtMatrix:
		return "Matrix";
	case rtBox:
		return "Box";
	case rtObjectName:
		return "ObjectName";
	case rtRoomScripts:
		return "RoomScripts";
	case rtRoomImage:
		return "RoomImage";
	case rtImage:
		return "Image";
	case rtTalkie:
		return "Talkie";
	case rtNumTypes:
		return "NumTypes";
	default:
		sprintf(buf, "%d", id);
		return buf;
	}
}

} // End of namespace Scumm