aboutsummaryrefslogtreecommitdiffstats
path: root/parse-cta-block.cpp
blob: 124b3e6491c3c6d2a174c4e583b5b60ba2a048fc (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
// SPDX-License-Identifier: MIT
/*
 * Copyright 2006-2012 Red Hat, Inc.
 * Copyright 2018-2020 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 *
 * Author: Adam Jackson <ajax@nwnk.net>
 * Maintainer: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 */

#include <stdio.h>
#include <math.h>

#include "edid-decode.h"

static const struct timings edid_cta_modes1[] = {
	/* VIC 1 */
	{  640,  480,   4,   3,   25175, 0, false,   16,  96,  48, false, 10,  2,  33, false },
	{  720,  480,   4,   3,   27000, 0, false,   16,  62,  60, false,  9,  6,  30, false },
	{  720,  480,  16,   9,   27000, 0, false,   16,  62,  60, false,  9,  6,  30, false },
	{ 1280,  720,  16,   9,   74250, 0, false,  110,  40, 220, true,   5,  5,  20, true  },
	{ 1920, 1080,  16,   9,   74250, 0, true,    88,  44, 148, true,   2,  5,  15, true  },
	{ 1440,  480,   4,   3,   27000, 0, true,    38, 124, 114, false,  4,  3,  15, false },
	{ 1440,  480,  16,   9,   27000, 0, true,    38, 124, 114, false,  4,  3,  15, false },
	{ 1440,  240,   4,   3,   27000, 0, false,   38, 124, 114, false,  4,  3,  15, false },
	{ 1440,  240,  16,   9,   27000, 0, false,   38, 124, 114, false,  4,  3,  15, false },
	{ 2880,  480,   4,   3,   54000, 0, true,    76, 248, 228, false,  4,  3,  15, false },
	/* VIC 11 */
	{ 2880,  480,  16,   9,   54000, 0, true,    76, 248, 228, false,  4,  3,  15, false },
	{ 2880,  240,   4,   3,   54000, 0, false,   76, 248, 228, false,  4,  3,  15, false },
	{ 2880,  240,  16,   9,   54000, 0, false,   76, 248, 228, false,  4,  3,  15, false },
	{ 1440,  480,   4,   3,   54000, 0, false,   32, 124, 120, false,  9,  6,  30, false },
	{ 1440,  480,  16,   9,   54000, 0, false,   32, 124, 120, false,  9,  6,  30, false },
	{ 1920, 1080,  16,   9,  148500, 0, false,   88,  44, 148, true,   4,  5,  36, true  },
	{  720,  576,   4,   3,   27000, 0, false,   12,  64,  68, false,  5,  5,  39, false },
	{  720,  576,  16,   9,   27000, 0, false,   12,  64,  68, false,  5,  5,  39, false },
	{ 1280,  720,  16,   9,   74250, 0, false,  440,  40, 220, true,   5,  5,  20, true  },
	{ 1920, 1080,  16,   9,   74250, 0, true,   528,  44, 148, true,   2,  5,  15, true  },
	/* VIC 21 */
	{ 1440,  576,   4,   3,   27000, 0, true,    24, 126, 138, false,  2,  3,  19, false },
	{ 1440,  576,  16,   9,   27000, 0, true,    24, 126, 138, false,  2,  3,  19, false },
	{ 1440,  288,   4,   3,   27000, 0, false,   24, 126, 138, false,  2,  3,  19, false },
	{ 1440,  288,  16,   9,   27000, 0, false,   24, 126, 138, false,  2,  3,  19, false },
	{ 2880,  576,   4,   3,   54000, 0, true,    48, 252, 276, false,  2,  3,  19, false },
	{ 2880,  576,  16,   9,   54000, 0, true,    48, 252, 276, false,  2,  3,  19, false },
	{ 2880,  288,   4,   3,   54000, 0, false,   48, 252, 276, false,  2,  3,  19, false },
	{ 2880,  288,  16,   9,   54000, 0, false,   48, 252, 276, false,  2,  3,  19, false },
	{ 1440,  576,   4,   3,   54000, 0, false,   24, 128, 136, false,  5,  5,  39, false },
	{ 1440,  576,  16,   9,   54000, 0, false,   24, 128, 136, false,  5,  5,  39, false },
	/* VIC 31 */
	{ 1920, 1080,  16,   9,  148500, 0, false,  528,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  16,   9,   74250, 0, false,  638,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  16,   9,   74250, 0, false,  528,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  16,   9,   74250, 0, false,   88,  44, 148, true,   4,  5,  36, true  },
	{ 2880,  480,   4,   3,  108000, 0, false,   64, 248, 240, false,  9,  6,  30, false },
	{ 2880,  480,  16,   9,  108000, 0, false,   64, 248, 240, false,  9,  6,  30, false },
	{ 2880,  576,   4,   3,  108000, 0, false,   48, 256, 272, false,  5,  5,  39, false },
	{ 2880,  576,  16,   9,  108000, 0, false,   48, 256, 272, false,  5,  5,  39, false },
	{ 1920, 1080,  16,   9,   72000, 0, true,    32, 168, 184, true,  23,  5,  57, false, 0, 0, true },
	{ 1920, 1080,  16,   9,  148500, 0, true,   528,  44, 148, true,   2,  5,  15, true  },
	/* VIC 41 */
	{ 1280,  720,  16,   9,  148500, 0, false,  440,  40, 220, true,   5,  5,  20, true  },
	{  720,  576,   4,   3,   54000, 0, false,   12,  64,  68, false,  5,  5,  39, false },
	{  720,  576,  16,   9,   54000, 0, false,   12,  64,  68, false,  5,  5,  39, false },
	{ 1440,  576,   4,   3,   54000, 0, true,    24, 126, 138, false,  2,  3,  19, false },
	{ 1440,  576,  16,   9,   54000, 0, true,    24, 126, 138, false,  2,  3,  19, false },
	{ 1920, 1080,  16,   9,  148500, 0, true,    88,  44, 148, true,   2,  5,  15, true  },
	{ 1280,  720,  16,   9,  148500, 0, false,  110,  40, 220, true,   5,  5,  20, true  },
	{  720,  480,   4,   3,   54000, 0, false,   16,  62,  60, false,  9,  6,  30, false },
	{  720,  480,  16,   9,   54000, 0, false,   16,  62,  60, false,  9,  6,  30, false },
	{ 1440,  480,   4,   3,   54000, 0, true,    38, 124, 114, false,  4,  3,  15, false },
	/* VIC 51 */
	{ 1440,  480,  16,   9,   54000, 0, true,    38, 124, 114, false,  4,  3,  15, false },
	{  720,  576,   4,   3,  108000, 0, false,   12,  64,  68, false,  5,  5,  39, false },
	{  720,  576,  16,   9,  108000, 0, false,   12,  64,  68, false,  5,  5,  39, false },
	{ 1440,  576,   4,   3,  108000, 0, true,    24, 126, 138, false,  2,  3,  19, false },
	{ 1440,  576,  16,   9,  108000, 0, true,    24, 126, 138, false,  2,  3,  19, false },
	{  720,  480,   4,   3,  108000, 0, false,   16,  62,  60, false,  9,  6,  30, false },
	{  720,  480,  16,   9,  108000, 0, false,   16,  62,  60, false,  9,  6,  30, false },
	{ 1440,  480,   4,   3,  108000, 0, true,    38, 124, 114, false,  4,  3,  15, false },
	{ 1440,  480,  16,   9,  108000, 0, true,    38, 124, 114, false,  4,  3,  15, false },
	{ 1280,  720,  16,   9,   59400, 0, false, 1760,  40, 220, true,   5,  5,  20, true  },
	/* VIC 61 */
	{ 1280,  720,  16,   9,   74250, 0, false, 2420,  40, 220, true,   5,  5,  20, true  },
	{ 1280,  720,  16,   9,   74250, 0, false, 1760,  40, 220, true,   5,  5,  20, true  },
	{ 1920, 1080,  16,   9,  297000, 0, false,   88,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  16,   9,  297000, 0, false,  528,  44, 148, true,   4,  5,  36, true  },
	{ 1280,  720,  64,  27,   59400, 0, false, 1760,  40, 220, true,   5,  5,  20, true  },
	{ 1280,  720,  64,  27,   74250, 0, false, 2420,  40, 220, true,   5,  5,  20, true  },
	{ 1280,  720,  64,  27,   74250, 0, false, 1760,  40, 220, true,   5,  5,  20, true  },
	{ 1280,  720,  64,  27,   74250, 0, false,  440,  40, 220, true,   5,  5,  20, true  },
	{ 1280,  720,  64,  27,   74250, 0, false,  110,  40, 220, true,   5,  5,  20, true  },
	{ 1280,  720,  64,  27,  148500, 0, false,  440,  40, 220, true,   5,  5,  20, true  },
	/* VIC 71 */
	{ 1280,  720,  64,  27,  148500, 0, false,  110,  40, 220, true,   5,  5,  20, true  },
	{ 1920, 1080,  64,  27,   74250, 0, false,  638,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  64,  27,   74250, 0, false,  528,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  64,  27,   74250, 0, false,   88,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  64,  27,  148500, 0, false,  528,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  64,  27,  148500, 0, false,   88,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  64,  27,  297000, 0, false,  528,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  64,  27,  297000, 0, false,   88,  44, 148, true,   4,  5,  36, true  },
	{ 1680,  720,  64,  27,   59400, 0, false, 1360,  40, 220, true,   5,  5,  20, true  },
	{ 1680,  720,  64,  27,   59400, 0, false, 1228,  40, 220, true,   5,  5,  20, true  },
	/* VIC 81 */
	{ 1680,  720,  64,  27,   59400, 0, false,  700,  40, 220, true,   5,  5,  20, true  },
	{ 1680,  720,  64,  27,   82500, 0, false,  260,  40, 220, true,   5,  5,  20, true  },
	{ 1680,  720,  64,  27,   99000, 0, false,  260,  40, 220, true,   5,  5,  20, true  },
	{ 1680,  720,  64,  27,  165000, 0, false,   60,  40, 220, true,   5,  5,  95, true  },
	{ 1680,  720,  64,  27,  198000, 0, false,   60,  40, 220, true,   5,  5,  95, true  },
	{ 2560, 1080,  64,  27,   99000, 0, false,  998,  44, 148, true,   4,  5,  11, true  },
	{ 2560, 1080,  64,  27,   90000, 0, false,  448,  44, 148, true,   4,  5,  36, true  },
	{ 2560, 1080,  64,  27,  118800, 0, false,  768,  44, 148, true,   4,  5,  36, true  },
	{ 2560, 1080,  64,  27,  185625, 0, false,  548,  44, 148, true,   4,  5,  36, true  },
	{ 2560, 1080,  64,  27,  198000, 0, false,  248,  44, 148, true,   4,  5,  11, true  },
	/* VIC 91 */
	{ 2560, 1080,  64,  27,  371250, 0, false,  218,  44, 148, true,   4,  5, 161, true  },
	{ 2560, 1080,  64,  27,  495000, 0, false,  548,  44, 148, true,   4,  5, 161, true  },
	{ 3840, 2160,  16,   9,  297000, 0, false, 1276,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  16,   9,  297000, 0, false, 1056,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  16,   9,  297000, 0, false,  176,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  16,   9,  594000, 0, false, 1056,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  16,   9,  594000, 0, false,  176,  88, 296, true,   8, 10,  72, true  },
	{ 4096, 2160, 256, 135,  297000, 0, false, 1020,  88, 296, true,   8, 10,  72, true  },
	{ 4096, 2160, 256, 135,  297000, 0, false,  968,  88, 128, true,   8, 10,  72, true  },
	{ 4096, 2160, 256, 135,  297000, 0, false,   88,  88, 128, true,   8, 10,  72, true  },
	/* VIC 101 */
	{ 4096, 2160, 256, 135,  594000, 0, false,  968,  88, 128, true,   8, 10,  72, true  },
	{ 4096, 2160, 256, 135,  594000, 0, false,   88,  88, 128, true,   8, 10,  72, true  },
	{ 3840, 2160,  64,  27,  297000, 0, false, 1276,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  64,  27,  297000, 0, false, 1056,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  64,  27,  297000, 0, false,  176,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  64,  27,  594000, 0, false, 1056,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  64,  27,  594000, 0, false,  176,  88, 296, true,   8, 10,  72, true  },
	{ 1280,  720,  16,   9,   90000, 0, false,  960,  40, 220, true,   5,  5,  20, true  },
	{ 1280,  720,  64,  27,   90000, 0, false,  960,  40, 220, true,   5,  5,  20, true  },
	{ 1680,  720,  64,  27,   99000, 0, false,  810,  40, 220, true,   5,  5,  20, true  },
	/* VIC 111 */
	{ 1920, 1080,  16,   9,  148500, 0, false,  638,  44, 148, true,   4,  5,  36, true  },
	{ 1920, 1080,  64,  27,  148500, 0, false,  638,  44, 148, true,   4,  5,  36, true  },
	{ 2560, 1080,  64,  27,  198000, 0, false,  998,  44, 148, true,   4,  5,  11, true  },
	{ 3840, 2160,  16,   9,  594000, 0, false, 1276,  88, 296, true,   8, 10,  72, true  },
	{ 4096, 2160, 256, 135,  594000, 0, false, 1020,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  64,  27,  594000, 0, false, 1276,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  16,   9, 1188000, 0, false, 1056,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  16,   9, 1188000, 0, false,  176,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  64,  27, 1188000, 0, false, 1056,  88, 296, true,   8, 10,  72, true  },
	{ 3840, 2160,  64,  27, 1188000, 0, false,  176,  88, 296, true,   8, 10,  72, true  },
	/* VIC 121 */
	{ 5120, 2160,  64,  27,  396000, 0, false, 1996,  88, 296, true,   8, 10,  22, true  },
	{ 5120, 2160,  64,  27,  396000, 0, false, 1696,  88, 296, true,   8, 10,  22, true  },
	{ 5120, 2160,  64,  27,  396000, 0, false,  664,  88, 128, true,   8, 10,  22, true  },
	{ 5120, 2160,  64,  27,  742500, 0, false,  746,  88, 296, true,   8, 10, 297, true  },
	{ 5120, 2160,  64,  27,  742500, 0, false, 1096,  88, 296, true,   8, 10,  72, true  },
	{ 5120, 2160,  64,  27,  742500, 0, false,  164,  88, 128, true,   8, 10,  72, true  },
	{ 5120, 2160,  64,  27, 1485000, 0, false, 1096,  88, 296, true,   8, 10,  72, true  },
};

static const struct timings edid_cta_modes2[] = {
	/* VIC 193 */
	{  5120, 2160,  64,  27, 1485000, 0, false,  164,  88, 128, true,   8, 10,  72, true  },
	{  7680, 4320,  16,   9, 1188000, 0, false, 2552, 176, 592, true,  16, 20, 144, true  },
	{  7680, 4320,  16,   9, 1188000, 0, false, 2352, 176, 592, true,  16, 20,  44, true  },
	{  7680, 4320,  16,   9, 1188000, 0, false,  552, 176, 592, true,  16, 20,  44, true  },
	{  7680, 4320,  16,   9, 2376000, 0, false, 2552, 176, 592, true,  16, 20, 144, true  },
	{  7680, 4320,  16,   9, 2376000, 0, false, 2352, 176, 592, true,  16, 20,  44, true  },
	{  7680, 4320,  16,   9, 2376000, 0, false,  552, 176, 592, true,  16, 20,  44, true  },
	{  7680, 4320,  16,   9, 4752000, 0, false, 2112, 176, 592, true,  16, 20, 144, true  },
	/* VIC 201 */
	{  7680, 4320,  16,   9, 4752000, 0, false,  352, 176, 592, true,  16, 20, 144, true  },
	{  7680, 4320,  64,  27, 1188000, 0, false, 2552, 176, 592, true,  16, 20, 144, true  },
	{  7680, 4320,  64,  27, 1188000, 0, false, 2352, 176, 592, true,  16, 20,  44, true  },
	{  7680, 4320,  64,  27, 1188000, 0, false,  552, 176, 592, true,  16, 20,  44, true  },
	{  7680, 4320,  64,  27, 2376000, 0, false, 2552, 176, 592, true,  16, 20, 144, true  },
	{  7680, 4320,  64,  27, 2376000, 0, false, 2352, 176, 592, true,  16, 20,  44, true  },
	{  7680, 4320,  64,  27, 2376000, 0, false,  552, 176, 592, true,  16, 20,  44, true  },
	{  7680, 4320,  64,  27, 4752000, 0, false, 2112, 176, 592, true,  16, 20, 144, true  },
	{  7680, 4320,  64,  27, 4752000, 0, false,  352, 176, 592, true,  16, 20, 144, true  },
	{ 10240, 4320,  64,  27, 1485000, 0, false, 1492, 176, 592, true,  16, 20, 594, true  },
	/* VIC 211 */
	{ 10240, 4320,  64,  27, 1485000, 0, false, 2492, 176, 592, true,  16, 20,  44, true  },
	{ 10240, 4320,  64,  27, 1485000, 0, false,  288, 176, 296, true,  16, 20, 144, true  },
	{ 10240, 4320,  64,  27, 2970000, 0, false, 1492, 176, 592, true,  16, 20, 594, true  },
	{ 10240, 4320,  64,  27, 2970000, 0, false, 2492, 176, 592, true,  16, 20,  44, true  },
	{ 10240, 4320,  64,  27, 2970000, 0, false,  288, 176, 296, true,  16, 20, 144, true  },
	{ 10240, 4320,  64,  27, 5940000, 0, false, 2192, 176, 592, true,  16, 20, 144, true  },
	{ 10240, 4320,  64,  27, 5940000, 0, false,  288, 176, 296, true,  16, 20, 144, true  },
	{  4096, 2160, 256, 135, 1188000, 0, false,  800,  88, 296, true,   8, 10,  72, true  },
	{  4096, 2160, 256, 135, 1188000, 0, false,   88,  88, 128, true,   8, 10,  72, true  },
};

static const unsigned char edid_hdmi_mode_map[] = { 95, 94, 93, 98 };

unsigned char hdmi_vic_to_vic(unsigned char hdmi_vic)
{
	if (hdmi_vic > 0 && hdmi_vic <= ARRAY_SIZE(edid_hdmi_mode_map))
		return edid_hdmi_mode_map[hdmi_vic - 1];
	return 0;
}

const struct timings *find_vic_id(unsigned char vic)
{
	if (vic > 0 && vic <= ARRAY_SIZE(edid_cta_modes1))
		return edid_cta_modes1 + vic - 1;
	if (vic >= 193 && vic < ARRAY_SIZE(edid_cta_modes2) + 193)
		return edid_cta_modes2 + vic - 193;
	return NULL;
}

const struct timings *find_hdmi_vic_id(unsigned char hdmi_vic)
{
	if (hdmi_vic > 0 && hdmi_vic <= ARRAY_SIZE(edid_hdmi_mode_map))
		return find_vic_id(edid_hdmi_mode_map[hdmi_vic - 1]);
	return NULL;
}

void edid_state::cta_list_vics()
{
	char type[16];
	for (unsigned vic = 1; vic <= ARRAY_SIZE(edid_cta_modes1); vic++) {
		sprintf(type, "VIC %3u", vic);
		print_timings("", &edid_cta_modes1[vic - 1], type, "", false, false);
	}
	for (unsigned vic = 193; vic < ARRAY_SIZE(edid_cta_modes2) + 193; vic++) {
		sprintf(type, "VIC %3u", vic);
		print_timings("", &edid_cta_modes2[vic - 193], type, "", false, false);
	}
}

void edid_state::cta_list_hdmi_vics()
{
	for (unsigned i = 0; i < ARRAY_SIZE(edid_hdmi_mode_map); i++) {
		unsigned vic = edid_hdmi_mode_map[i];
		char type[16];

		sprintf(type, "HDMI VIC %u", i + 1);
		print_timings("", find_vic_id(vic), type, "", false, false);
	}
}

static std::string audio_ext_format(unsigned char x)
{
	if (x >= 1 && x <= 3)
		fail("Obsolete Audio Ext Format 0x%02x.\n", x);
	switch (x) {
	case 1: return "HE AAC (Obsolete)";
	case 2: return "HE AAC v2 (Obsolete)";
	case 3: return "MPEG Surround (Obsolete)";
	case 4: return "MPEG-4 HE AAC";
	case 5: return "MPEG-4 HE AAC v2";
	case 6: return "MPEG-4 AAC LC";
	case 7: return "DRA";
	case 8: return "MPEG-4 HE AAC + MPEG Surround";
	case 10: return "MPEG-4 AAC LC + MPEG Surround";
	case 11: return "MPEG-H 3D Audio";
	case 12: return "AC-4";
	case 13: return "L-PCM 3D Audio";
	default: break;
	}
	fail("Unknown Audio Ext Format 0x%02x.\n", x);
	return std::string("Unknown Audio Ext Format (") + utohex(x) + ")";
}

static std::string audio_format(unsigned char x)
{
	switch (x) {
	case 1: return "Linear PCM";
	case 2: return "AC-3";
	case 3: return "MPEG 1 (Layers 1 & 2)";
	case 4: return "MPEG 1 Layer 3 (MP3)";
	case 5: return "MPEG2 (multichannel)";
	case 6: return "AAC LC";
	case 7: return "DTS";
	case 8: return "ATRAC";
	case 9: return "One Bit Audio";
	case 10: return "Enhanced AC-3 (DD+)";
	case 11: return "DTS-HD";
	case 12: return "MAT (MLP)";
	case 13: return "DST";
	case 14: return "WMA Pro";
	default: break;
	}
	fail("Unknown Audio Format 0x%02x.\n", x);
	return std::string("Unknown Audio Format (") + utohex(x) + ")";
}

static std::string mpeg_h_3d_audio_level(unsigned char x)
{
	switch (x) {
	case 0: return "Unspecified";
	case 1: return "Level 1";
	case 2: return "Level 2";
	case 3: return "Level 3";
	case 4: return "Level 4";
	case 5: return "Level 5";
	default: break;
	}
	fail("Unknown MPEG-H 3D Audio Level 0x%02x.\n", x);
	return std::string("Unknown MPEG-H 3D Audio Level (") + utohex(x) + ")";
}

static void cta_audio_block(const unsigned char *x, unsigned length)
{
	unsigned i, format, ext_format;

	if (length % 3) {
		fail("Broken CTA-861 audio block length %d.\n", length);
		return;
	}

	for (i = 0; i < length; i += 3) {
		format = (x[i] & 0x78) >> 3;
		if (format == 0) {
			printf("    Reserved (0x00)\n");
			fail("Audio Format Code 0x00 is reserved.\n");
			continue;
		}
		if (format != 15) {
			ext_format = 0;
			printf("    %s:\n", audio_format(format).c_str());
		} else {
			ext_format = (x[i + 2] & 0xf8) >> 3;
			printf("    %s:\n", audio_ext_format(ext_format).c_str());
		}
		if (format != 15)
			printf("      Max channels: %u\n", (x[i] & 0x07)+1);
		else if (ext_format == 11)
			printf("      MPEG-H 3D Audio Level: %s\n",
			       mpeg_h_3d_audio_level(x[i] & 0x07).c_str());
		else if (ext_format == 13)
			printf("      Max channels: %u\n",
			       (((x[i + 1] & 0x80) >> 3) | ((x[i] & 0x80) >> 4) |
				(x[i] & 0x07))+1);
		else
			printf("      Max channels: %u\n", (x[i] & 0x07)+1);

		printf("      Supported sample rates (kHz):%s%s%s%s%s%s%s\n",
		       (x[i+1] & 0x40) ? " 192" : "",
		       (x[i+1] & 0x20) ? " 176.4" : "",
		       (x[i+1] & 0x10) ? " 96" : "",
		       (x[i+1] & 0x08) ? " 88.2" : "",
		       (x[i+1] & 0x04) ? " 48" : "",
		       (x[i+1] & 0x02) ? " 44.1" : "",
		       (x[i+1] & 0x01) ? " 32" : "");
		if (format == 1 || ext_format == 13) {
			printf("      Supported sample sizes (bits):%s%s%s\n",
			       (x[i+2] & 0x04) ? " 24" : "",
			       (x[i+2] & 0x02) ? " 20" : "",
			       (x[i+2] & 0x01) ? " 16" : "");
		} else if (format <= 8) {
			printf("      Maximum bit rate: %u kb/s\n", x[i+2] * 8);
		} else if (format == 10) {
			// As specified by the "Dolby Audio and Dolby Atmos over HDMI"
			// specification (v1.0).
			if (x[i+2] & 1)
				printf("      Supports Joint Object Coding\n");
			if (x[i+2] & 2)
				printf("      Supports Joint Object Coding with ACMOD28\n");
		} else if (format == 12) {
			if (x[i+2] & 1) {
				printf("      Supports Dolby TrueHD, object audio PCM and channel-based PCM\n");
				printf("      Hash calculation %srequired for object audio PCM or channel-based PCM\n",
				       (x[i+2] & 2) ? "not " : "");
			} else {
				printf("      Supports only Dolby TrueHD\n");
			}
		} else if (format == 14) {
			printf("      Profile: %u\n", x[i+2] & 7);
		} else if (format >= 9 && format <= 13) {
			printf("      Audio Format Code dependent value: 0x%02x\n", x[i+2]);
		} else if (ext_format == 11 && (x[i+2] & 1)) {
			printf("      Supports MPEG-H 3D Audio Low Complexity Profile\n");
		} else if ((ext_format >= 4 && ext_format <= 6) ||
			   ext_format == 8 || ext_format == 10) {
			printf("      AAC audio frame lengths:%s%s\n",
			       (x[i+2] & 4) ? " 1024_TL" : "",
			       (x[i+2] & 2) ? " 960_TL" : "");
			if (ext_format >= 8 && (x[i+2] & 1))
				printf("      Supports %s signaled MPEG Surround data\n",
				       (x[i+2] & 1) ? "implicitly and explicitly" : "only implicitly");
			if (ext_format == 6 && (x[i+2] & 1))
				printf("      Supports 22.2ch System H\n");
		}
	}
}

void edid_state::cta_svd(const unsigned char *x, unsigned n, bool for_ycbcr420)
{
	unsigned i;

	for (i = 0; i < n; i++)  {
		const struct timings *t = NULL;
		unsigned char svd = x[i];
		unsigned char native;
		unsigned char vic;

		if ((svd & 0x7f) == 0)
			continue;

		if ((svd - 1) & 0x40) {
			vic = svd;
			native = 0;
		} else {
			vic = svd & 0x7f;
			native = svd & 0x80;
		}

		t = find_vic_id(vic);
		if (t) {
			switch (vic) {
			case 95:
				cta.supported_hdmi_vic_vsb_codes |= 1 << 0;
				break;
			case 94:
				cta.supported_hdmi_vic_vsb_codes |= 1 << 1;
				break;
			case 93:
				cta.supported_hdmi_vic_vsb_codes |= 1 << 2;
				break;
			case 98:
				cta.supported_hdmi_vic_vsb_codes |= 1 << 3;
				break;
			}
			bool first_svd = cta.first_svd && !for_ycbcr420;
			bool override_pref = first_svd && cta.first_svd_might_be_preferred;

			char type[16];
			sprintf(type, "VIC %3u", vic);
			const char *flags = native ? "native" : "";

			if (for_ycbcr420) {
				struct timings tmp = *t;
				tmp.ycbcr420 = true;
				print_timings("    ", &tmp, type, flags);
			} else {
				print_timings("    ", t, type, flags);
			}
			if (override_pref) {
				if (!cta.preferred_timings.empty()) {
					if (match_timings(cta.preferred_timings[0].t, *t))
						warn("For improved preferred timing interoperability, set 'Native detailed modes' to 1.\n");
					else
						warn("VIC %u is the preferred timing, overriding the first detailed timings. Is this intended?\n", vic);
				}
				cta.preferred_timings.insert(cta.preferred_timings.begin(),
							     timings_ext(*t, type, flags));
			} else if (first_svd) {
				cta.preferred_timings.push_back(timings_ext(*t, type, flags));
			}
			if (first_svd) {
				cta.first_svd = false;
				cta.first_svd_might_be_preferred = false;
			}
			if (native)
				cta.native_timings.push_back(timings_ext(*t, type, flags));
		} else {
			printf("    Unknown (VIC %3u)\n", vic);
			fail("Unknown VIC %u.\n", vic);
		}

		if (vic == 1 && !for_ycbcr420)
			cta.has_vic_1 = 1;
		if (++cta.vics[vic][for_ycbcr420] == 2)
			fail("Duplicate %sVIC %u.\n", for_ycbcr420 ? "YCbCr 4:2:0 " : "", vic);
		if (for_ycbcr420 && cta.preparsed_has_vic[0][vic])
			fail("YCbCr 4:2:0-only VIC %u is also a regular VIC.\n", vic);
	}
}

void edid_state::print_vic_index(const char *prefix, unsigned idx, const char *suffix, bool ycbcr420)
{
	if (!suffix)
		suffix = "";
	if (idx < cta.preparsed_svds[0].size()) {
		unsigned char vic = cta.preparsed_svds[0][idx];
		const struct timings *t = find_vic_id(vic);
		char buf[16];

		sprintf(buf, "VIC %3u", vic);

		if (t) {
			struct timings tmp = *t;
			tmp.ycbcr420 = ycbcr420;
			print_timings(prefix, &tmp, buf, suffix);
		} else {
			printf("%sUnknown (%s%s%s)\n", prefix, buf,
			       *suffix ? ", " : "", suffix);
		}
	} else {
		// Should not happen!
		printf("%sSVD Index %u is out of range", prefix, idx + 1);
		if (*suffix)
			printf(" (%s)", suffix);
		printf("\n");
	}
}

void edid_state::cta_y420cmdb(const unsigned char *x, unsigned length)
{
	unsigned max_idx = 0;
	unsigned i;

	if (!length) {
		printf("    All VDB SVDs\n");
		return;
	}

	if (memchk(x, length)) {
		printf("    Empty Capability Map\n");
		fail("Empty Capability Map.\n");
		return;
	}

	for (i = 0; i < length; i++) {
		unsigned char v = x[i];
		unsigned j;

		for (j = 0; j < 8; j++) {
			if (!(v & (1 << j)))
				continue;

			print_vic_index("    ", i * 8 + j, "", true);
			max_idx = i * 8 + j;
			if (max_idx < cta.preparsed_svds[0].size()) {
				unsigned vic = cta.preparsed_svds[0][max_idx];
				if (cta.preparsed_has_vic[1][vic])
					fail("VIC %u is also a YCbCr 4:2:0-only VIC.\n", vic);
			}
		}
	}
	if (max_idx >= cta.preparsed_svds[0].size())
		fail("Max index %u > %u (#SVDs).\n",
		     max_idx + 1, cta.preparsed_svds[0].size());
}

void edid_state::cta_vfpdb(const unsigned char *x, unsigned length)
{
	unsigned i;

	if (length == 0) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	cta.preferred_timings.clear();
	for (i = 0; i < length; i++)  {
		unsigned char svr = x[i];
		char suffix[16];

		if ((svr > 0 && svr < 128) || (svr > 192 && svr < 254)) {
			const struct timings *t;
			unsigned char vic = svr;

			sprintf(suffix, "VIC %3u", vic);

			t = find_vic_id(vic);
			if (t) {
				print_timings("    ", t, suffix);
				cta.preferred_timings.push_back(timings_ext(*t, suffix, ""));
			} else {
				printf("    %s: Unknown\n", suffix);
				fail("Unknown VIC %u.\n", vic);
			}

		} else if (svr >= 129 && svr <= 144) {
			sprintf(suffix, "DTD %3u", svr - 128);
			if (svr >= cta.preparsed_total_dtds + 129) {
				printf("    %s: Invalid\n", suffix);
				fail("Invalid DTD %u.\n", svr - 128);
			} else {
				printf("    %s\n", suffix);
				cta.preferred_timings.push_back(timings_ext(svr, suffix));
			}
		} else if (svr >= 145 && svr <= 160) {
			sprintf(suffix, "VTDB %3u", svr - 144);
			if (svr >= cta.preparsed_total_vtdbs + 145) {
				printf("    %s: Invalid\n", suffix);
				fail("Invalid VTDB %u.\n", svr - 144);
			} else {
				printf("    %s\n", suffix);
				cta.preferred_timings.push_back(timings_ext(svr, suffix));
			}
		} else if (svr == 254) {
			sprintf(suffix, "T8VTDB");
			if (!cta.preparsed_has_t8vtdb) {
				printf("    %s: Invalid\n", suffix);
				fail("Invalid T8VTDB.\n");
			} else {
				printf("    %s\n", suffix);
				cta.preferred_timings.push_back(timings_ext(svr, suffix));
			}
		}
	}
}

static std::string hdmi_latency2s(unsigned char l, bool is_video)
{
	if (!l)
		return "Unknown";
	if (l == 0xff)
		return is_video ? "Video not supported" : "Audio not supported";
	return std::to_string(1 + 2 * l) + " ms";
}

void edid_state::hdmi_latency(unsigned char vid_lat, unsigned char aud_lat,
			      bool is_ilaced)
{
	const char *vid = is_ilaced ? "Interlaced video" : "Video";
	const char *aud = is_ilaced ? "Interlaced audio" : "Audio";

	printf("    %s latency: %s\n", vid, hdmi_latency2s(vid_lat, true).c_str());
	printf("    %s latency: %s\n", aud, hdmi_latency2s(aud_lat, false).c_str());

	if (vid_lat > 251 && vid_lat != 0xff)
		fail("Invalid %s latency value %u.\n", vid, vid_lat);
	if (aud_lat > 251 && aud_lat != 0xff)
		fail("Invalid %s latency value %u.\n", aud, aud_lat);

	if (!vid_lat || vid_lat > 251)
		return;
	if (!aud_lat || aud_lat > 251)
		return;

	unsigned vid_ms = 1 + 2 * vid_lat;
	unsigned aud_ms = 1 + 2 * aud_lat;

	// HDMI 2.0 latency checks for devices without HDMI output
	if (aud_ms < vid_ms)
		warn("%s latency < %s latency (%u ms < %u ms). This is discouraged for devices without HDMI output.\n",
		     aud, vid, aud_ms, vid_ms);
	else if (vid_ms + 20 < aud_ms)
		warn("%s latency + 20 < %s latency (%u + 20 ms < %u ms). This is forbidden for devices without HDMI output.\n",
		     vid, aud, vid_ms, aud_ms);
	else if (vid_ms < aud_ms)
		warn("%s latency < %s latency (%u ms < %u ms). This is discouraged for devices without HDMI output.\n",
		     vid, aud, vid_ms, aud_ms);
}

void edid_state::cta_hdmi_block(const unsigned char *x, unsigned length)
{
	unsigned len_vic, len_3d;

	if (length < 4) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	printf("    Source physical address: %u.%u.%u.%u\n", x[3] >> 4, x[3] & 0x0f,
	       x[4] >> 4, x[4] & 0x0f);

	if (length < 6)
		return;

	if (x[5] & 0x80)
		printf("    Supports_AI\n");
	if (x[5] & 0x40)
		printf("    DC_48bit\n");
	if (x[5] & 0x20)
		printf("    DC_36bit\n");
	if (x[5] & 0x10)
		printf("    DC_30bit\n");
	if (x[5] & 0x08)
		printf("    DC_Y444\n");
	/* two reserved bits */
	if (x[5] & 0x01)
		printf("    DVI_Dual\n");

	if (length < 7)
		return;

	printf("    Maximum TMDS clock: %u MHz\n", x[6] * 5);
	if (x[6] * 5 > 340)
		fail("HDMI VSDB Max TMDS rate is > 340.\n");

	if (length < 8)
		return;

	if (x[7] & 0x0f) {
		printf("    Supported Content Types:\n");
		if (x[7] & 0x01)
			printf("      Graphics\n");
		if (x[7] & 0x02)
			printf("      Photo\n");
		if (x[7] & 0x04)
			printf("      Cinema\n");
		if (x[7] & 0x08)
			printf("      Game\n");
	}

	unsigned b = 8;
	if (x[7] & 0x80) {
		hdmi_latency(x[b], x[b + 1], false);

		if (x[7] & 0x40) {
			if (x[b] == x[b + 2] &&
			    x[b + 1] == x[b + 3])
				warn("Progressive and Interlaced latency values are identical, no need for both.\n");
			b += 2;
			hdmi_latency(x[b], x[b + 1], true);
		}
		b += 2;
	}

	if (!(x[7] & 0x20))
		return;

	bool mask = false;
	bool formats = false;

	printf("    Extended HDMI video details:\n");
	if (x[b] & 0x80)
		printf("      3D present\n");
	if ((x[b] & 0x60) == 0x20) {
		printf("      All advertised VICs are 3D-capable\n");
		formats = true;
	}
	if ((x[b] & 0x60) == 0x40) {
		printf("      3D-capable-VIC mask present\n");
		formats = true;
		mask = true;
	}
	switch (x[b] & 0x18) {
	case 0x00: break;
	case 0x08:
		   printf("      Base EDID image size is aspect ratio\n");
		   break;
	case 0x10:
		   printf("      Base EDID image size is in units of 1 cm\n");
		   break;
	case 0x18:
		   printf("      Base EDID image size is in units of 5 cm\n");
		   base.max_display_width_mm *= 5;
		   base.max_display_height_mm *= 5;
		   printf("        Recalculated image size: %u cm x %u cm\n",
			  base.max_display_width_mm / 10, base.max_display_height_mm / 10);
		   break;
	}
	b++;
	len_vic = (x[b] & 0xe0) >> 5;
	len_3d = (x[b] & 0x1f) >> 0;
	b++;

	if (len_vic) {
		unsigned i;

		printf("      HDMI VICs:\n");
		for (i = 0; i < len_vic; i++) {
			unsigned char vic = x[b + i];
			const struct timings *t;

			if (vic && vic <= ARRAY_SIZE(edid_hdmi_mode_map)) {
				std::string suffix = "HDMI VIC " + std::to_string(vic);
				cta.supported_hdmi_vic_codes |= 1 << (vic - 1);
				t = find_vic_id(edid_hdmi_mode_map[vic - 1]);
				print_timings("        ", t, suffix.c_str());
			} else {
				printf("         Unknown (HDMI VIC %u)\n", vic);
				fail("Unknown HDMI VIC %u.\n", vic);
			}
		}

		b += len_vic;
	}

	if (!len_3d)
		return;

	if (formats) {
		/* 3D_Structure_ALL_15..8 */
		if (x[b] & 0x80)
			printf("      3D: Side-by-side (half, quincunx)\n");
		if (x[b] & 0x01)
			printf("      3D: Side-by-side (half, horizontal)\n");
		/* 3D_Structure_ALL_7..0 */
		b++;
		if (x[b] & 0x40)
			printf("      3D: Top-and-bottom\n");
		if (x[b] & 0x20)
			printf("      3D: L + depth + gfx + gfx-depth\n");
		if (x[b] & 0x10)
			printf("      3D: L + depth\n");
		if (x[b] & 0x08)
			printf("      3D: Side-by-side (full)\n");
		if (x[b] & 0x04)
			printf("      3D: Line-alternative\n");
		if (x[b] & 0x02)
			printf("      3D: Field-alternative\n");
		if (x[b] & 0x01)
			printf("      3D: Frame-packing\n");
		b++;
		len_3d -= 2;
	}

	if (mask) {
		int max_idx = -1;
		unsigned i;

		printf("      3D VIC indices that support these capabilities:\n");
		/* worst bit ordering ever */
		for (i = 0; i < 8; i++)
			if (x[b + 1] & (1 << i)) {
				print_vic_index("        ", i, "");
				max_idx = i;
			}
		for (i = 0; i < 8; i++)
			if (x[b] & (1 << i)) {
				print_vic_index("        ", i + 8, "");
				max_idx = i + 8;
			}
		b += 2;
		len_3d -= 2;
		if (max_idx >= (int)cta.preparsed_svds[0].size())
			fail("HDMI 3D VIC indices max index %d > %u (#SVDs).\n",
			     max_idx + 1, cta.preparsed_svds[0].size());
	}

	/*
	 * list of nibbles:
	 * 2D_VIC_Order_X
	 * 3D_Structure_X
	 * (optionally: 3D_Detail_X and reserved)
	 */
	if (!len_3d)
		return;

	unsigned end = b + len_3d;
	int max_idx = -1;

	printf("      3D VIC indices with specific capabilities:\n");
	while (b < end) {
		unsigned char idx = x[b] >> 4;
		std::string s;

		if (idx > max_idx)
			max_idx = idx;
		switch (x[b] & 0x0f) {
		case 0: s = "frame packing"; break;
		case 1: s = "field alternative"; break;
		case 2: s = "line alternative"; break;
		case 3: s = "side-by-side (full)"; break;
		case 4: s = "L + depth"; break;
		case 5: s = "L + depth + gfx + gfx-depth"; break;
		case 6: s = "top-and-bottom"; break;
		case 8:
			s = "side-by-side";
			switch (x[b + 1] >> 4) {
			case 0x00: s += ", any subsampling"; break;
			case 0x01: s += ", horizontal"; break;
			case 0x02: case 0x03: case 0x04: case 0x05:
				   s += ", not in use";
				   fail("not-in-use 3D_Detail_X value 0x%02x.\n",
					x[b + 1] >> 4);
				   break;
			case 0x06: s += ", all quincunx combinations"; break;
			case 0x07: s += ", quincunx odd/left, odd/right"; break;
			case 0x08: s += ", quincunx odd/left, even/right"; break;
			case 0x09: s += ", quincunx even/left, odd/right"; break;
			case 0x0a: s += ", quincunx even/left, even/right"; break;
			default:
				   s += ", reserved";
				   fail("reserved 3D_Detail_X value 0x%02x.\n",
					x[b + 1] >> 4);
				   break;
			}
			break;
		default:
			s = "unknown (";
			s += utohex(x[b] & 0x0f) + ")";
			fail("Unknown 3D_Structure_X value 0x%02x.\n", x[b] & 0x0f);
			break;
		}
		print_vic_index("        ", idx, s.c_str());
		if ((x[b] & 0x0f) >= 8)
			b++;
		b++;
	}
	if (max_idx >= (int)cta.preparsed_svds[0].size())
		fail("HDMI 2D VIC indices max index %d > %u (#SVDs).\n",
		     max_idx + 1, cta.preparsed_svds[0].size());
}

static const char *max_frl_rates[] = {
	"Not Supported",
	"3 Gbps per lane on 3 lanes",
	"3 and 6 Gbps per lane on 3 lanes",
	"3 and 6 Gbps per lane on 3 lanes, 6 Gbps on 4 lanes",
	"3 and 6 Gbps per lane on 3 lanes, 6 and 8 Gbps on 4 lanes",
	"3 and 6 Gbps per lane on 3 lanes, 6, 8 and 10 Gbps on 4 lanes",
	"3 and 6 Gbps per lane on 3 lanes, 6, 8, 10 and 12 Gbps on 4 lanes",
};

static const char *dsc_max_slices[] = {
	"Not Supported",
	"up to 1 slice and up to (340 MHz/Ksliceadjust) pixel clock per slice",
	"up to 2 slices and up to (340 MHz/Ksliceadjust) pixel clock per slice",
	"up to 4 slices and up to (340 MHz/Ksliceadjust) pixel clock per slice",
	"up to 8 slices and up to (340 MHz/Ksliceadjust) pixel clock per slice",
	"up to 8 slices and up to (400 MHz/Ksliceadjust) pixel clock per slice",
	"up to 12 slices and up to (400 MHz/Ksliceadjust) pixel clock per slice",
	"up to 16 slices and up to (400 MHz/Ksliceadjust) pixel clock per slice",
};

static void cta_hf_eeodb(const unsigned char *x, unsigned length)
{
	printf("    EDID Extension Block Count: %u\n", x[0]);
	if (length != 1 || x[0] == 0)
		fail("Block is too long or reports a 0 block count.\n");
}

static void cta_hf_scdb(const unsigned char *x, unsigned length)
{
	unsigned rate = x[1] * 5;

	printf("    Version: %u\n", x[0]);
	if (rate) {
		printf("    Maximum TMDS Character Rate: %u MHz\n", rate);
		if (rate <= 340 || rate > 600)
			fail("Max TMDS rate is > 0 and <= 340 or > 600.\n");
	}
	if (x[2] & 0x80)
		printf("    SCDC Present\n");
	if (x[2] & 0x40)
		printf("    SCDC Read Request Capable\n");
	if (x[2] & 0x10)
		printf("    Supports Color Content Bits Per Component Indication\n");
	if (x[2] & 0x08)
		printf("    Supports scrambling for <= 340 Mcsc\n");
	if (x[2] & 0x04)
		printf("    Supports 3D Independent View signaling\n");
	if (x[2] & 0x02)
		printf("    Supports 3D Dual View signaling\n");
	if (x[2] & 0x01)
		printf("    Supports 3D OSD Disparity signaling\n");
	if (x[3] & 0xf0) {
		unsigned max_frl_rate = x[3] >> 4;

		printf("    Max Fixed Rate Link: ");
		if (max_frl_rate < ARRAY_SIZE(max_frl_rates)) {
			printf("%s\n", max_frl_rates[max_frl_rate]);
		} else {
			printf("Unknown (0x%02x)\n", max_frl_rate);
			fail("Unknown Max Fixed Rate Link (0x%02x).\n", max_frl_rate);
		}
		if (max_frl_rate == 1 && rate < 300)
			fail("Max Fixed Rate Link is 1, but Max TMDS rate < 300.\n");
		else if (max_frl_rate >= 2 && rate < 600)
			fail("Max Fixed Rate Link is >= 2, but Max TMDS rate < 600.\n");
	}
	if (x[3] & 0x08)
		printf("    Supports UHD VIC\n");
	if (x[3] & 0x04)
		printf("    Supports 16-bits/component Deep Color 4:2:0 Pixel Encoding\n");
	if (x[3] & 0x02)
		printf("    Supports 12-bits/component Deep Color 4:2:0 Pixel Encoding\n");
	if (x[3] & 0x01)
		printf("    Supports 10-bits/component Deep Color 4:2:0 Pixel Encoding\n");

	if (length <= 4)
		return;

	if (x[4] & 0x20)
		printf("    Supports Mdelta\n");
	if (x[4] & 0x10)
		printf("    Supports media rates below VRRmin (CinemaVRR)\n");
	if (x[4] & 0x08)
		printf("    Supports negative Mvrr values\n");
	if (x[4] & 0x04)
		printf("    Supports Fast Vactive\n");
	if (x[4] & 0x02)
		printf("    Supports Auto Low-Latency Mode\n");
	if (x[4] & 0x01)
		printf("    Supports a FAPA in blanking after first active video line\n");

	if (length <= 5)
		return;

	printf("    VRRmin: %d Hz\n", x[5] & 0x3f);
	printf("    VRRmax: %d Hz\n", (x[5] & 0xc0) << 2 | x[6]);

	if (length <= 7)
		return;

	if (x[7] & 0x80)
		printf("    Supports VESA DSC 1.2a compression\n");
	if (x[7] & 0x40)
		printf("    Supports Compressed Video Transport for 4:2:0 Pixel Encoding\n");
	if (x[7] & 0x08)
		printf("    Supports Compressed Video Transport at any valid 1/16th bit bpp\n");
	if (x[7] & 0x04)
		printf("    Supports 16 bpc Compressed Video Transport\n");
	if (x[7] & 0x02)
		printf("    Supports 12 bpc Compressed Video Transport\n");
	if (x[7] & 0x01)
		printf("    Supports 10 bpc Compressed Video Transport\n");
	if (x[8] & 0xf) {
		unsigned max_slices = x[8] & 0xf;

		printf("    DSC Max Slices: ");
		if (max_slices < ARRAY_SIZE(dsc_max_slices)) {
			printf("%s\n", dsc_max_slices[max_slices]);
		} else {
			printf("Unknown (0x%02x)\n", max_slices);
			fail("Unknown DSC Max Slices (0x%02x).\n", max_slices);
		}
	}
	if (x[8] & 0xf0) {
		unsigned max_frl_rate = x[8] >> 4;

		printf("    DSC Max Fixed Rate Link: ");
		if (max_frl_rate < ARRAY_SIZE(max_frl_rates)) {
			printf("%s\n", max_frl_rates[max_frl_rate]);
		} else {
			printf("Unknown (0x%02x)\n", max_frl_rate);
			fail("Unknown DSC Max Fixed Rate Link (0x%02x).\n", max_frl_rate);
		}
	}
	if (x[9] & 0x3f)
		printf("    Maximum number of bytes in a line of chunks: %u\n",
		       1024 * (1 + (x[9] & 0x3f)));
}

static void cta_amd(const unsigned char *x, unsigned length)
{
	// These Freesync values are reversed engineered by looking
	// at existing EDIDs.
	printf("    Version: %u.%u\n", x[0], x[1]);
	printf("    Minimum Refresh Rate: %u Hz\n", x[2]);
	printf("    Maximum Refresh Rate: %u Hz\n", x[3]);
	// Freesync 1.x flags
	// One or more of the 0xe6 bits signal that the VESA MCCS
	// protocol is used to switch the Freesync range
	printf("    Flags 1.x: 0x%02x%s\n", x[4],
	       (x[4] & 0xe6) ? " (MCCS)" : "");
	if (length >= 10) {
		// Freesync 2.x flags
		// Bit 2 no doubt indicates if the monitor supports Local Dimming
		// There are probably also bits to signal support of the
		// FreeSync2_scRGB and FreeSync2_Gamma22 HDR display modes.
		// I suspect bits 0 and 1.
		printf("    Flags 2.x: 0x%02x\n", x[5]);
		// The AMD tone mapping tutorial referred to in the URL below
		// mentions that the Freesync HDR info reports max/min
		// luminance of the monitor with and without local dimming.
		//
		// https://gpuopen.com/learn/using-amd-freesync-premium-pro-hdr-code-samples/
		//
		// So I assume that the first two luminance values are
		// the max/min luminance of the display and the next two
		// luminance values are the max/min luminance values when
		// local dimming is disabled. The values I get seem to
		// support that.
		printf("    Maximum luminance: %u (%.3f cd/m^2)\n",
		       x[6], 50.0 * pow(2, x[6] / 32.0));
		printf("    Minimum luminance: %u (%.3f cd/m^2)\n",
		       x[7], (50.0 * pow(2, x[6] / 32.0)) * pow(x[7] / 255.0, 2) / 100.0);
		if (x[5] & 4) {
			// One or both bytes can be 0. The meaning of that
			// is unknown.
			printf("    Maximum luminance (without local dimming): %u (%.3f cd/m^2)\n",
			       x[8], 50.0 * pow(2, x[8] / 32.0));
			printf("    Minimum luminance (without local dimming): %u (%.3f cd/m^2)\n",
			       x[9], (50.0 * pow(2, x[8] / 32.0)) * pow(x[9] / 255.0, 2) / 100.0);
		} else {
			// These bytes are always 0x08 0x2f. If these values
			// represent max/min luminance as well, then these
			// would map to 59.460 and 0.020 cd/m^2 respectively.
			// I wonder if this somehow relates to SDR.
			printf("    Unknown: 0x%02x 0x%02x\n", x[8], x[9]);
		}
	}
}

static std::string display_use_case(unsigned char x)
{
	switch (x) {
	case 1: return "Test equipment";
	case 2: return "Generic display";
	case 3: return "Television display";
	case 4: return "Desktop productivity display";
	case 5: return "Desktop gaming display";
	case 6: return "Presentation display";
	case 7: return "Virtual reality headset";
	case 8: return "Augmented reality";
	case 16: return "Video wall display";
	case 17: return "Medical imaging display";
	case 18: return "Dedicated gaming display";
	case 19: return "Dedicated video monitor display";
	case 20: return "Accessory display";
	default: break;
	}
	fail("Unknown Display product primary use case 0x%02x.\n", x);
	return std::string("Unknown display use case (") + utohex(x) + ")";
}

static void cta_microsoft(const unsigned char *x, unsigned length)
{
	// This VSDB is documented at:
	// https://docs.microsoft.com/en-us/windows-hardware/drivers/display/specialized-monitors-edid-extension
	printf("    Version: %u\n", x[0]);
	if (x[0] > 2) {
		// In version 1 and 2 these bits should always be set to 0.
		printf("    Desktop Usage: %u\n", (x[1] >> 6) & 1);
		printf("    Third-Party Usage: %u\n", (x[1] >> 5) & 1);
	}
	printf("    Display Product Primary Use Case: %u (%s)\n", x[1] & 0x1f,
	       display_use_case(x[1] & 0x1f).c_str());
	printf("    Container ID: %s\n", containerid2s(x + 2).c_str());
}

static void cta_hdr10plus(const unsigned char *x, unsigned length)
{
	printf("    Application Version: %u", x[0]);
	if (length > 1)
		hex_block("  ", x + 1, length - 1);
	else
		printf("\n");
}

static void cta_dolby_video(const unsigned char *x, unsigned length)
{
	unsigned char version = (x[0] >> 5) & 0x07;

	printf("    Version: %u (%u bytes)\n", version, length + 5);
	if (x[0] & 0x01)
		printf("    Supports YUV422 12 bit\n");

	if (version == 0) {
		if (x[0] & 0x02)
			printf("    Supports 2160p60\n");
		if (x[0] & 0x04)
			printf("    Supports global dimming\n");
		unsigned char dm_version = x[16];
		printf("    DM Version: %u.%u\n", dm_version >> 4, dm_version & 0xf);
		printf("    Target Min PQ: %u\n", (x[14] << 4) | (x[13] >> 4));
		printf("    Target Max PQ: %u\n", (x[15] << 4) | (x[13] & 0xf));
		printf("    Rx, Ry: %.8f, %.8f\n",
		       ((x[1] >> 4) | (x[2] << 4)) / 4096.0,
		       ((x[1] & 0xf) | (x[3] << 4)) / 4096.0);
		printf("    Gx, Gy: %.8f, %.8f\n",
		       ((x[4] >> 4) | (x[5] << 4)) / 4096.0,
		       ((x[4] & 0xf) | (x[6] << 4)) / 4096.0);
		printf("    Bx, By: %.8f, %.8f\n",
		       ((x[7] >> 4) | (x[8] << 4)) / 4096.0,
		       ((x[7] & 0xf) | (x[9] << 4)) / 4096.0);
		printf("    Wx, Wy: %.8f, %.8f\n",
		       ((x[10] >> 4) | (x[11] << 4)) / 4096.0,
		       ((x[10] & 0xf) | (x[12] << 4)) / 4096.0);
		return;
	}

	if (version == 1) {
		if (x[0] & 0x02)
			printf("    Supports 2160p60\n");
		if (x[1] & 0x01)
			printf("    Supports global dimming\n");
		unsigned char dm_version = (x[0] >> 2) & 0x07;
		printf("    DM Version: %u.x\n", dm_version + 2);
		printf("    Colorimetry: %s\n", (x[2] & 0x01) ? "P3-D65" : "ITU-R BT.709");
		printf("    Low Latency: %s\n", (x[3] & 0x01) ? "Standard + Low Latency" : "Only Standard");
		printf("    Target Max Luminance: %u cd/m^2\n", 100 + (x[1] >> 1) * 50);
		double lm = (x[2] >> 1) / 127.0;
		printf("    Target Min Luminance: %.8f cd/m^2\n", lm * lm);
		if (length == 10) {
			printf("    Rx, Ry: %.8f, %.8f\n", x[4] / 256.0, x[5] / 256.0);
			printf("    Gx, Gy: %.8f, %.8f\n", x[6] / 256.0, x[7] / 256.0);
			printf("    Bx, By: %.8f, %.8f\n", x[8] / 256.0, x[9] / 256.0);
		} else {
			double xmin = 0.625;
			double xstep = (0.74609375 - xmin) / 31.0;
			double ymin = 0.25;
			double ystep = (0.37109375 - ymin) / 31.0;

			printf("    Unique Rx, Ry: %.8f, %.8f\n",
			       xmin + xstep * (x[6] >> 3),
			       ymin + ystep * (((x[6] & 0x7) << 2) | (x[4] & 0x01) | ((x[5] & 0x01) << 1)));
			xstep = 0.49609375 / 127.0;
			ymin = 0.5;
			ystep = (0.99609375 - ymin) / 127.0;
			printf("    Unique Gx, Gy: %.8f, %.8f\n",
			       xstep * (x[4] >> 1), ymin + ystep * (x[5] >> 1));
			xmin = 0.125;
			xstep = (0.15234375 - xmin) / 7.0;
			ymin = 0.03125;
			ystep = (0.05859375 - ymin) / 7.0;
			printf("    Unique Bx, By: %.8f, %.8f\n",
			       xmin + xstep * (x[3] >> 5),
			       ymin + ystep * ((x[3] >> 2) & 0x07));
		}
		return;
	}

	if (version == 2) {
		if (x[0] & 0x02)
			printf("    Supports Backlight Control\n");
		if (x[1] & 0x04)
			printf("    Supports global dimming\n");
		unsigned char dm_version = (x[0] >> 2) & 0x07;
		printf("    DM Version: %u.x\n", dm_version + 2);
		printf("    Backlt Min Luma: %u cd/m^2\n", 25 + (x[1] & 0x03) * 25);
		printf("    Interface: ");
		switch (x[2] & 0x03) {
		case 0: printf("Low-Latency\n"); break;
		case 1: printf("Low-Latency + Low-Latency-HDMI\n"); break;
		case 2: printf("Standard + Low-Latency\n"); break;
		case 3: printf("Standard + Low-Latency + Low-Latency-HDMI\n"); break;
		}
		printf("    Supports 10b 12b 444: ");
		switch ((x[3] & 0x01) << 1 | (x[4] & 0x01)) {
		case 0: printf("Not supported\n"); break;
		case 1: printf("10 bit\n"); break;
		case 2: printf("12 bit\n"); break;
		case 3: printf("Reserved\n"); break;
		}
		printf("    Target Min PQ v2: %u\n", 20 * (x[1] >> 3));
		printf("    Target Max PQ v2: %u\n", 2055 + 65 * (x[2] >> 3));

		double xmin = 0.625;
		double xstep = (0.74609375 - xmin) / 31.0;
		double ymin = 0.25;
		double ystep = (0.37109375 - ymin) / 31.0;

		printf("    Unique Rx, Ry: %.8f, %.8f\n",
		       xmin + xstep * (x[5] >> 3),
		       ymin + ystep * (x[6] >> 3));
		xstep = 0.49609375 / 127.0;
		ymin = 0.5;
		ystep = (0.99609375 - ymin) / 127.0;
		printf("    Unique Gx, Gy: %.8f, %.8f\n",
		       xstep * (x[3] >> 1), ymin + ystep * (x[4] >> 1));
		xmin = 0.125;
		xstep = (0.15234375 - xmin) / 7.0;
		ymin = 0.03125;
		ystep = (0.05859375 - ymin) / 7.0;
		printf("    Unique Bx, By: %.8f, %.8f\n",
		       xmin + xstep * (x[5] & 0x07),
		       ymin + ystep * (x[6] & 0x07));
	}
}

static void cta_dolby_audio(const unsigned char *x, unsigned length)
{
	unsigned char version = 1 + (x[0] & 0x07);

	printf("    Version: %u (%u bytes)\n", version, length + 5);
	if (x[0] & 0x80)
		printf("    Headphone playback only\n");
	if (x[0] & 0x40)
		printf("    Height speaker zone present\n");
	if (x[0] & 0x20)
		printf("    Surround speaker zone present\n");
	if (x[0] & 0x10)
		printf("    Center speaker zone present\n");
	if (x[1] & 0x01)
		printf("    Supports Dolby MAT PCM decoding at 48 kHz only, does not support TrueHD\n");
}

static const char *speaker_map[] = {
	"FL/FR - Front Left/Right",
	"LFE1 - Low Frequency Effects 1",
	"FC - Front Center",
	"BL/BR - Back Left/Right",
	"BC - Back Center",
	"FLc/FRc - Front Left/Right of Center",
	"RLC/RRC - Rear Left/Right of Center (Deprecated)",
	"FLw/FRw - Front Left/Right Wide",
	"TpFL/TpFR - Top Front Left/Right",
	"TpC - Top Center",
	"TpFC - Top Front Center",
	"LS/RS - Left/Right Surround",
	"LFE2 - Low Frequency Effects 2",
	"TpBC - Top Back Center",
	"SiL/SiR - Side Left/Right",
	"TpSiL/TpSiR - Top Side Left/Right",
	"TpBL/TpBR - Top Back Left/Right",
	"BtFC - Bottom Front Center",
	"BtFL/BtFR - Bottom Front Left/Right",
	"TpLS/TpRS - Top Left/Right Surround (Deprecated for CTA-861)",
	"LSd/RSd - Left/Right Surround Direct (HDMI only)",
};

static void cta_sadb(const unsigned char *x, unsigned length)
{
	unsigned sad;
	unsigned i;

	if (length < 3) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}

	sad = ((x[2] << 16) | (x[1] << 8) | x[0]);

	for (i = 0; i < ARRAY_SIZE(speaker_map); i++) {
		if ((sad >> i) & 1)
			printf("    %s\n", speaker_map[i]);
	}
}

static void cta_vesa_dtcdb(const unsigned char *x, unsigned length)
{
	if (length != 7 && length != 15 && length != 31) {
		fail("Invalid length %u.\n", length);
		return;
	}

	switch (x[0] >> 6) {
	case 0: printf("    White"); break;
	case 1: printf("    Red"); break;
	case 2: printf("    Green"); break;
	case 3: printf("    Blue"); break;
	}
	unsigned v = x[0] & 0x3f;
	printf(" transfer characteristics: %u", v);
	for (unsigned i = 1; i < length; i++)
		printf(" %u", v += x[i]);
	printf(" 1023\n");
}

static void cta_vesa_vdddb(const unsigned char *x, unsigned length)
{
	if (length != 30) {
		fail("Invalid length %u.\n", length);
		return;
	}

	printf("    Interface Type: ");
	unsigned char v = x[0];
	switch (v >> 4) {
	case 0: printf("Analog (");
		switch (v & 0xf) {
		case 0: printf("15HD/VGA"); break;
		case 1: printf("VESA NAVI-V (15HD)"); break;
		case 2: printf("VESA NAVI-D"); break;
		default: printf("Reserved"); break;
		}
		printf(")\n");
		break;
	case 1: printf("LVDS %u lanes", v & 0xf); break;
	case 2: printf("RSDS %u lanes", v & 0xf); break;
	case 3: printf("DVI-D %u channels", v & 0xf); break;
	case 4: printf("DVI-I analog"); break;
	case 5: printf("DVI-I digital %u channels", v & 0xf); break;
	case 6: printf("HDMI-A"); break;
	case 7: printf("HDMI-B"); break;
	case 8: printf("MDDI %u channels", v & 0xf); break;
	case 9: printf("DisplayPort %u channels", v & 0xf); break;
	case 10: printf("IEEE-1394"); break;
	case 11: printf("M1 analog"); break;
	case 12: printf("M1 digital %u channels", v & 0xf); break;
	default: printf("Reserved"); break;
	}
	printf("\n");

	printf("    Interface Standard Version: %u.%u\n", x[1] >> 4, x[1] & 0xf);
	printf("    Content Protection Support: ");
	switch (x[2]) {
	case 0: printf("None\n"); break;
	case 1: printf("HDCP\n"); break;
	case 2: printf("DTCP\n"); break;
	case 3: printf("DPCP\n"); break;
	default: printf("Reserved\n"); break;
	}

	printf("    Minimum Clock Frequency: %u MHz\n", x[3] >> 2);
	printf("    Maximum Clock Frequency: %u MHz\n", ((x[3] & 0x03) << 8) | x[4]);
	printf("    Device Native Pixel Format: %ux%u\n",
	       x[5] | (x[6] << 8), x[7] | (x[8] << 8));
	printf("    Aspect Ratio: %.2f\n", (100 + x[9]) / 100.0);
	v = x[0x0a];
	printf("    Default Orientation: ");
	switch ((v & 0xc0) >> 6) {
	case 0x00: printf("Landscape\n"); break;
	case 0x01: printf("Portrait\n"); break;
	case 0x02: printf("Not Fixed\n"); break;
	case 0x03: printf("Undefined\n"); break;
	}
	printf("    Rotation Capability: ");
	switch ((v & 0x30) >> 4) {
	case 0x00: printf("None\n"); break;
	case 0x01: printf("Can rotate 90 degrees clockwise\n"); break;
	case 0x02: printf("Can rotate 90 degrees counterclockwise\n"); break;
	case 0x03: printf("Can rotate 90 degrees in either direction)\n"); break;
	}
	printf("    Zero Pixel Location: ");
	switch ((v & 0x0c) >> 2) {
	case 0x00: printf("Upper Left\n"); break;
	case 0x01: printf("Upper Right\n"); break;
	case 0x02: printf("Lower Left\n"); break;
	case 0x03: printf("Lower Right\n"); break;
	}
	printf("    Scan Direction: ");
	switch (v & 0x03) {
	case 0x00: printf("Not defined\n"); break;
	case 0x01: printf("Fast Scan is on the Major (Long) Axis and Slow Scan is on the Minor Axis\n"); break;
	case 0x02: printf("Fast Scan is on the Minor (Short) Axis and Slow Scan is on the Major Axis\n"); break;
	case 0x03: printf("Reserved\n");
		   fail("Scan Direction used the reserved value 0x03.\n");
		   break;
	}
	printf("    Subpixel Information: ");
	switch (x[0x0b]) {
	case 0x00: printf("Not defined\n"); break;
	case 0x01: printf("RGB vertical stripes\n"); break;
	case 0x02: printf("RGB horizontal stripes\n"); break;
	case 0x03: printf("Vertical stripes using primary order\n"); break;
	case 0x04: printf("Horizontal stripes using primary order\n"); break;
	case 0x05: printf("Quad sub-pixels, red at top left\n"); break;
	case 0x06: printf("Quad sub-pixels, red at bottom left\n"); break;
	case 0x07: printf("Delta (triad) RGB sub-pixels\n"); break;
	case 0x08: printf("Mosaic\n"); break;
	case 0x09: printf("Quad sub-pixels, RGB + 1 additional color\n"); break;
	case 0x0a: printf("Five sub-pixels, RGB + 2 additional colors\n"); break;
	case 0x0b: printf("Six sub-pixels, RGB + 3 additional colors\n"); break;
	case 0x0c: printf("Clairvoyante, Inc. PenTile Matrix (tm) layout\n"); break;
	default: printf("Reserved\n"); break;
	}
	printf("    Horizontal and vertical dot/pixel pitch: %.2f x %.2f mm\n",
	       (double)(x[0x0c]) / 100.0, (double)(x[0x0d]) / 100.0);
	v = x[0x0e];
	printf("    Dithering: ");
	switch (v >> 6) {
	case 0: printf("None\n"); break;
	case 1: printf("Spatial\n"); break;
	case 2: printf("Temporal\n"); break;
	case 3: printf("Spatial and Temporal\n"); break;
	}
	printf("    Direct Drive: %s\n", (v & 0x20) ? "Yes" : "No");
	printf("    Overdrive %srecommended\n", (v & 0x10) ? "not " : "");
	printf("    Deinterlacing: %s\n", (v & 0x08) ? "Yes" : "No");

	v = x[0x0f];
	printf("    Audio Support: %s\n", (v & 0x80) ? "Yes" : "No");
	printf("    Separate Audio Inputs Provided: %s\n", (v & 0x40) ? "Yes" : "No");
	printf("    Audio Input Override: %s\n", (v & 0x20) ? "Yes" : "No");
	v = x[0x10];
	if (v)
		printf("    Audio Delay: %s%u ms\n", (v & 0x80) ? "" : "-", (v & 0x7f) * 2);
	else
		printf("    Audio Delay: no information provided\n");
	v = x[0x11];
	printf("    Frame Rate/Mode Conversion: ");
	switch (v >> 6) {
	case 0: printf("None\n"); break;
	case 1: printf("Single Buffering\n"); break;
	case 2: printf("Double Buffering\n"); break;
	case 3: printf("Advanced Frame Rate Conversion\n"); break;
	}
	if (v & 0x3f)
		printf("    Frame Rate Range: %u fps +/- %u fps\n",
		       x[0x12], v & 0x3f);
	else
		printf("    Nominal Frame Rate: %u fps\n", x[0x12]);
	printf("    Color Bit Depth: %u @ interface, %u @ display\n",
	       (x[0x13] >> 4) + 1, (x[0x13] & 0xf) + 1);
	v = x[0x15] & 3;
	if (v) {
		printf("    Additional Primary Chromaticities:\n");
		unsigned col_x = (x[0x16] << 2) | (x[0x14] >> 6);
		unsigned col_y = (x[0x17] << 2) | ((x[0x14] >> 4) & 3);
		printf("      Primary 4:   0.%04u, 0.%04u\n",
		       (col_x * 10000) / 1024, (col_y * 10000) / 1024);
		if (v > 1) {
			col_x = (x[0x18] << 2) | ((x[0x14] >> 2) & 3);
			col_y = (x[0x19] << 2) | (x[0x14] & 3);
			printf("      Primary 5:   0.%04u, 0.%04u\n",
			       (col_x * 10000) / 1024, (col_y * 10000) / 1024);
			if (v > 2) {
				col_x = (x[0x1a] << 2) | (x[0x15] >> 6);
				col_y = (x[0x1b] << 2) | ((x[0x15] >> 4) & 3);
				printf("      Primary 6:   0.%04u, 0.%04u\n",
				       (col_x * 10000) / 1024, (col_y * 10000) / 1024);
			}
		}
	}

	v = x[0x1c];
	printf("    Response Time %s: %u ms\n",
	       (v & 0x80) ? "White -> Black" : "Black -> White", v & 0x7f);
	v = x[0x1d];
	printf("    Overscan: %u%% x %u%%\n", v >> 4, v & 0xf);
}

static double decode_uchar_as_double(unsigned char x)
{
	signed char s = (signed char)x;

	return s / 64.0;
}

void edid_state::cta_rcdb(const unsigned char *x, unsigned length)
{
	unsigned spm = ((x[3] << 16) | (x[2] << 8) | x[1]);
	unsigned i;

	if (length < 4) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}

	if ((x[0] & 0x20) && !cta.has_sldb)
		fail("'SLD' flag is 1, but no Speaker Location Data Block is found.\n");
	else if (!(x[0] & 0x20) && cta.has_sldb)
		fail("'SLD' flag is 0, but a Speaker Location Data Block is present.\n");

	if (x[0] & 0x40) {
		printf("    Speaker count: %u\n", (x[0] & 0x1f) + 1);
	} else {
		if (x[0] & 0x1f)
			fail("'Speaker' flag is 0, but 'Speaker Count' is != 0.\n");
		if (x[0] & 0x20)
			fail("'SLD' flag is 1, but 'Speaker' is 0.\n");
	}

	printf("    Speaker Presence Mask:\n");
	for (i = 0; i < ARRAY_SIZE(speaker_map); i++) {
		if ((spm >> i) & 1)
			printf("      %s\n", speaker_map[i]);
	}

	if ((x[0] & 0xa0) == 0x80)
		fail("'Display' flag set, but not the 'SLD' flag.\n");

	bool valid_max = cta.preparsed_sld_has_coord || (x[0] & 0x80);

	if (valid_max && length >= 7) {
		printf("    Xmax: %u dm\n", x[4]);
		printf("    Ymax: %u dm\n", x[5]);
		printf("    Zmax: %u dm\n", x[6]);
	} else if (!valid_max && length >= 7) {
		// The RCDB should have been truncated.
		warn("'Display' flag is 0 and 'Coord' is 0 for all SLDs, but the Max coordinates are still present.\n");
	}
	if ((x[0] & 0x80) && length >= 10) {
		printf("    DisplayX: %.3f * Xmax\n", decode_uchar_as_double(x[7]));
		printf("    DisplayY: %.3f * Ymax\n", decode_uchar_as_double(x[8]));
		printf("    DisplayZ: %.3f * Zmax\n", decode_uchar_as_double(x[9]));
	} else if (!(x[0] & 0x80) && length >= 10) {
		// The RCDB should have been truncated.
		warn("'Display' flag is 0, but the Display coordinates are still present.\n");
	}
}

static const char *speaker_location[] = {
	"FL - Front Left",
	"FR - Front Right",
	"FC - Front Center",
	"LFE1 - Low Frequency Effects 1",
	"BL - Back Left",
	"BR - Back Right",
	"FLC - Front Left of Center",
	"FRC - Front Right of Center",
	"BC - Back Center",
	"LFE2 - Low Frequency Effects 2",
	"SiL - Side Left",
	"SiR - Side Right",
	"TpFL - Top Front Left",
	"TpFR - Top Front Right",
	"TpFC - Top Front Center",
	"TpC - Top Center",
	"TpBL - Top Back Left",
	"TpBR - Top Back Right",
	"TpSiL - Top Side Left",
	"TpSiR - Top Side Right",
	"TpBC - Top Back Center",
	"BtFC - Bottom Front Center",
	"BtFL - Bottom Front Left",
	"BtFR - Bottom Front Right",
	"FLW - Front Left Wide",
	"FRW - Front Right Wide",
	"LS - Left Surround",
	"RS - Right Surround",
};

void edid_state::cta_sldb(const unsigned char *x, unsigned length)
{
	if (length < 2) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}

	unsigned active_cnt = 0;
	unsigned channel_is_active = 0;

	while (length >= 2) {
		printf("    Channel: %u (%sactive)\n", x[0] & 0x1f,
		       (x[0] & 0x20) ? "" : "not ");
		if (x[0] & 0x20) {
			if (channel_is_active & (1U << (x[0] & 0x1f)))
				fail("Channel Index %u was already marked 'Active'.\n",
				     x[0] & 0x1f);
			channel_is_active |= 1U << (x[0] & 0x1f);
			active_cnt++;
		}
		if ((x[1] & 0x1f) < ARRAY_SIZE(speaker_location))
			printf("      Speaker: %s\n", speaker_location[x[1] & 0x1f]);
		if (length >= 5 && (x[0] & 0x40)) {
			printf("      X: %.3f * Xmax\n", decode_uchar_as_double(x[2]));
			printf("      Y: %.3f * Ymax\n", decode_uchar_as_double(x[3]));
			printf("      Z: %.3f * Zmax\n", decode_uchar_as_double(x[4]));
			length -= 3;
			x += 3;
		}

		length -= 2;
		x += 2;
	}
	if (active_cnt != cta.preparsed_speaker_count)
		fail("There are %u active speakers, but 'Speaker Count' is %u.\n",
		     active_cnt, cta.preparsed_speaker_count);
}

void edid_state::cta_preparse_sldb(const unsigned char *x, unsigned length)
{
	cta.has_sldb = true;
	while (length >= 2) {
		if (length >= 5 && (x[0] & 0x40)) {
			cta.preparsed_sld_has_coord = true;
			return;
		}
		length -= 2;
		x += 2;
	}
}

void edid_state::cta_vcdb(const unsigned char *x, unsigned length)
{
	unsigned char d = x[0];

	cta.has_vcdb = true;
	if (length < 1) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	printf("    YCbCr quantization: %s\n",
	       (d & 0x80) ? "Selectable (via AVI YQ)" : "No Data");
	printf("    RGB quantization: %s\n",
	       (d & 0x40) ? "Selectable (via AVI Q)" : "No Data");
	/*
	 * If this bit is not set then that will result in interoperability
	 * problems (specifically with PCs/laptops) that quite often do not
	 * follow the default rules with respect to RGB Quantization Range
	 * handling.
	 *
	 * Starting with the CTA-861-H spec this bit is now required to be
	 * 1 for new designs.
	 */
	if (!(d & 0x40))
		fail("Set Selectable RGB Quantization to avoid interop issues.\n");
	/*
	 * Since most YCbCr formats use limited range, the interop issues are
	 * less noticable than for RGB formats.
	 *
	 * Starting with the CTA-861-H spec this bit is now required to be
	 * 1 for new designs, but just warn about it (for now).
	 */
	if ((cta.byte3 & 0x30) && !(d & 0x80))
		warn("Set Selectable YCbCr Quantization to avoid interop issues.\n");

	unsigned char s_pt = (d >> 4) & 0x03;
	unsigned char s_it = (d >> 2) & 0x03;
	unsigned char s_ce = d & 0x03;

	printf("    PT scan behavior: ");
	switch (s_pt) {
	case 0: printf("No Data\n"); break;
	case 1: printf("Always Overscanned\n"); break;
	case 2: printf("Always Underscanned\n"); break;
	case 3: printf("Supports both over- and underscan\n"); break;
	}
	printf("    IT scan behavior: ");
	switch (s_it) {
	case 0: printf("IT video formats not supported\n"); break;
	case 1:
		printf("Always Overscanned\n");
		// See Table 52 of CTA-861-G for a description of Byte 3
		if (cta.byte3 & 0x80)
			fail("IT video formats are always overscanned, but bit 7 of Byte 3 of the CTA-861 Extension header is set to underscanned.\n");
		break;
	case 2:
		printf("Always Underscanned\n");
		// See Table 52 of CTA-861-G for a description of Byte 3
		if (!(cta.byte3 & 0x80))
			fail("IT video formats are always underscanned, but bit 7 of Byte 3 of the CTA-861 Extension header is set to overscanned.\n");
		break;
	case 3: printf("Supports both over- and underscan\n"); break;
	}
	if (s_it < 2)
		warn("IT scan behavior is expected to support underscanned.\n");
	printf("    CE scan behavior: ");
	switch (s_ce) {
	case 0: printf("CE video formats not supported\n"); break;
	case 1: printf("Always Overscanned\n"); break;
	case 2: printf("Always Underscanned\n"); break;
	case 3: printf("Supports both over- and underscan\n"); break;
	}
	if (s_ce == 0)
		warn("'CE video formats not supported' makes no sense.\n");
	else if (s_pt == s_it && s_pt == s_ce)
		warn("S_PT is equal to S_IT and S_CE, so should be set to 0 instead.\n");
}

static const char *colorimetry_map[] = {
	"xvYCC601",
	"xvYCC709",
	"sYCC601",
	"opYCC601",
	"opRGB",
	"BT2020cYCC",
	"BT2020YCC",
	"BT2020RGB",
};

static void cta_colorimetry_block(const unsigned char *x, unsigned length)
{
	unsigned i;

	if (length < 2) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	for (i = 0; i < ARRAY_SIZE(colorimetry_map); i++) {
		if (x[0] & (1 << i))
			printf("    %s\n", colorimetry_map[i]);
	}
	if (x[1] & 0x80)
		printf("    DCI-P3\n");
	if (x[1] & 0x40)
		printf("    ICtCp\n");
}

static const char *eotf_map[] = {
	"Traditional gamma - SDR luminance range",
	"Traditional gamma - HDR luminance range",
	"SMPTE ST2084",
	"Hybrid Log-Gamma",
};

static void cta_hdr_static_metadata_block(const unsigned char *x, unsigned length)
{
	unsigned i;

	if (length < 2) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	printf("    Electro optical transfer functions:\n");
	for (i = 0; i < 6; i++) {
		if (x[0] & (1 << i)) {
			if (i < ARRAY_SIZE(eotf_map)) {
				printf("      %s\n", eotf_map[i]);
			} else {
				printf("      Unknown (%u)\n", i);
				fail("Unknown EOTF (%u).\n", i);
			}
		}
	}
	printf("    Supported static metadata descriptors:\n");
	for (i = 0; i < 8; i++) {
		if (x[1] & (1 << i))
			printf("      Static metadata type %u\n", i + 1);
	}

	if (length >= 3)
		printf("    Desired content max luminance: %u (%.3f cd/m^2)\n",
		       x[2], 50.0 * pow(2, x[2] / 32.0));

	if (length >= 4)
		printf("    Desired content max frame-average luminance: %u (%.3f cd/m^2)\n",
		       x[3], 50.0 * pow(2, x[3] / 32.0));

	if (length >= 5)
		printf("    Desired content min luminance: %u (%.3f cd/m^2)\n",
		       x[4], (50.0 * pow(2, x[2] / 32.0)) * pow(x[4] / 255.0, 2) / 100.0);
}

static void cta_hdr_dyn_metadata_block(const unsigned char *x, unsigned length)
{
	if (length < 3) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	while (length >= 3) {
		unsigned type_len = x[0];
		unsigned type = x[1] | (x[2] << 8);

		if (length < type_len + 1)
			return;
		printf("    HDR Dynamic Metadata Type %u\n", type);
		switch (type) {
		case 1:
		case 4:
			if (type_len > 2)
				printf("      Version: %u\n", x[3] & 0xf);
			break;
		case 2:
			if (type_len > 2) {
				unsigned version = x[3] & 0xf;
				printf("      Version: %u\n", version);
				if (version >= 1) {
					if (x[3] & 0x10) printf("      Supports SL-HDR1 (ETSI TS 103 433-1)\n");
					if (x[3] & 0x20) printf("      Supports SL-HDR2 (ETSI TS 103 433-2)\n");
					if (x[3] & 0x40) printf("      Supports SL-HDR3 (ETSI TS 103 433-3)\n");
				}
			}
			break;
		default:
			break;
		}
		length -= type_len + 1;
		x += type_len + 1;
	}
}

static void cta_ifdb(const unsigned char *x, unsigned length)
{
	unsigned len_hdr = x[0] >> 5;

	if (length < 2) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	printf("    VSIFs: %u\n", x[1]);
	if (length < len_hdr + 2)
		return;
	length -= len_hdr + 2;
	x += len_hdr + 2;
	while (length > 0) {
		int payload_len = x[0] >> 5;

		if ((x[0] & 0x1f) == 1 && length >= 4) {
			unsigned oui = (x[3] << 16) | (x[2] << 8) | x[1];

			printf("    InfoFrame Type Code %u, OUI %s\n",
			       x[0] & 0x1f, ouitohex(oui).c_str());
			x += 4;
			length -= 4;
		} else {
			printf("    InfoFrame Type Code %u\n", x[0] & 0x1f);
			x++;
			length--;
		}
		x += payload_len;
		length -= payload_len;
	}
}

void edid_state::cta_displayid_type_7(const unsigned char *x, unsigned length)
{
	check_displayid_datablock_revision(x[0], 0x00, 2);

	if (length < 21U + ((x[0] & 0x70) >> 4)) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	parse_displayid_type_1_7_timing(x + 1, true, 2, true);
}

void edid_state::cta_displayid_type_8(const unsigned char *x, unsigned length)
{
	check_displayid_datablock_revision(x[0], 0xe8, 1);
	if (length < ((x[0] & 0x08) ? 3 : 2)) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}

	unsigned sz = (x[0] & 0x08) ? 2 : 1;
	unsigned type = x[0] >> 6;

	if (type) {
		fail("Only code type 0 is supported.\n");
		return;
	}

	if (x[0] & 0x20)
		printf("    Also supports YCbCr 4:2:0\n");

	x++;
	length--;
	for (unsigned i = 0; i < length / sz; i++) {
		unsigned id = x[i * sz];

		if (sz == 2)
			id |= x[i * sz + 1] << 8;
		parse_displayid_type_4_8_timing(type, id, true);
	}
}

void edid_state::cta_displayid_type_10(const unsigned char *x, unsigned length)
{
	check_displayid_datablock_revision(x[0], 0x70);
	if (length < 7U + ((x[0] & 0x70) >> 4)) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}

	unsigned sz = 6U + ((x[0] & 0x70) >> 4);
	x++;
	length--;
	for (unsigned i = 0; i < length / sz; i++)
		parse_displayid_type_10_timing(x + i * sz, true);
}

static void cta_hdmi_audio_block(const unsigned char *x, unsigned length)
{
	unsigned num_descs;

	if (length < 2) {
		fail("Empty Data Block with length %u.\n", length);
		return;
	}
	if (x[0] & 3)
		printf("    Max Stream Count: %u\n", (x[0] & 3) + 1);
	if (x[0] & 4)
		printf("    Supports MS NonMixed\n");

	num_descs = x[1] & 7;
	if (num_descs == 0)
		return;
	length -= 2;
	x += 2;
	while (length >= 4) {
		if (length > 4) {
			unsigned format = x[0] & 0xf;

			printf("    %s, max channels %u\n", audio_format(format).c_str(),
			       (x[1] & 0x1f)+1);
			printf("      Supported sample rates (kHz):%s%s%s%s%s%s%s\n",
			       (x[2] & 0x40) ? " 192" : "",
			       (x[2] & 0x20) ? " 176.4" : "",
			       (x[2] & 0x10) ? " 96" : "",
			       (x[2] & 0x08) ? " 88.2" : "",
			       (x[2] & 0x04) ? " 48" : "",
			       (x[2] & 0x02) ? " 44.1" : "",
			       (x[2] & 0x01) ? " 32" : "");
			if (format == 1)
				printf("      Supported sample sizes (bits):%s%s%s\n",
				       (x[3] & 0x04) ? " 24" : "",
				       (x[3] & 0x02) ? " 20" : "",
				       (x[3] & 0x01) ? " 16" : "");
		} else {
			unsigned sad = ((x[2] << 16) | (x[1] << 8) | x[0]);
			unsigned i;

			switch (x[3] >> 4) {
			case 1:
				printf("    Speaker Allocation for 10.2 channels:\n");
				break;
			case 2:
				printf("    Speaker Allocation for 22.2 channels:\n");
				break;
			case 3:
				printf("    Speaker Allocation for 30.2 channels:\n");
				break;
			default:
				printf("    Unknown Speaker Allocation (0x%02x)\n", x[3] >> 4);
				return;
			}

			for (i = 0; i < ARRAY_SIZE(speaker_map); i++) {
				if ((sad >> i) & 1)
					printf("      %s\n", speaker_map[i]);
			}
		}
		length -= 4;
		x += 4;
	}
}

void edid_state::cta_ext_block(const unsigned char *x, unsigned length,
			       bool duplicate)
{
	const char *name;
	unsigned oui;
	bool reverse = false;
	bool audio_block = false;

	switch (x[0]) {
	case 0x00: data_block = "Video Capability Data Block"; break;
	case 0x01: data_block.clear(); break;
	case 0x02: data_block = "VESA Video Display Device Data Block"; break;
	case 0x03: data_block = "VESA Video Timing Block Extension"; break;
	case 0x04: data_block = "Reserved for HDMI Video Data Block"; break;
	case 0x05: data_block = "Colorimetry Data Block"; break;
	case 0x06: data_block = "HDR Static Metadata Data Block"; break;
	case 0x07: data_block = "HDR Dynamic Metadata Data Block"; break;

	case 0x0d: data_block = "Video Format Preference Data Block"; break;
	case 0x0e: data_block = "YCbCr 4:2:0 Video Data Block"; break;
	case 0x0f: data_block = "YCbCr 4:2:0 Capability Map Data Block"; break;
	case 0x10: data_block = "Reserved for CTA-861 Miscellaneous Audio Fields"; break;
	case 0x11: data_block.clear(); audio_block = true; break;
	case 0x12: data_block = "HDMI Audio Data Block"; audio_block = true; break;
	case 0x13: data_block = "Room Configuration Data Block"; audio_block = true; break;
	case 0x14: data_block = "Speaker Location Data Block"; audio_block = true; break;

	case 0x20: data_block = "InfoFrame Data Block"; break;

	case 0x34: data_block = "DisplayID Type VII Video Timing Data Block"; break;
	case 0x35: data_block = "DisplayID Type VIII Video Timing Data Block"; break;
	case 0x42: data_block = "DisplayID Type X Video Timing Data Block"; break;

	case 0x78: data_block = "HDMI Forum EDID Extension Override Data Block"; break;
	case 0x79: data_block = "HDMI Forum Sink Capability Data Block"; break;
	default:
		if (x[0] <= 12)
			printf("  Unknown CTA-861 Video-Related");
		else if (x[0] <= 31)
			printf("  Unknown CTA-861 Audio-Related");
		else if (x[0] >= 120 && x[0] <= 127)
			printf("  Unknown CTA-861 HDMI-Related");
		else
			printf("  Unknown CTA-861");
		printf(" Data Block (extended tag 0x%02x, length %u)\n", x[0], length);
		hex_block("    ", x + 1, length);
		data_block.clear();
		warn("Unknown Extended CTA-861 Data Block 0x%02x.\n", x[0]);
		return;
	}

	switch (x[0]) {
	case 0x00:
	case 0x02:
	case 0x05:
	case 0x06:
	case 0x0d:
	case 0x0f:
	case 0x12:
	case 0x13:
	case 0x78:
	case 0x79:
		if (duplicate)
			fail("Only one instance of this Data Block is allowed.\n");
		break;
	}


	// See Table 52 of CTA-861-G for a description of Byte 3
	if (audio_block && !(cta.byte3 & 0x40))
		fail("audio information is present, but bit 6 of Byte 3 of the CTA-861 Extension header indicates no Basic Audio support.\n");

	if (data_block.length())
		printf("  %s:\n", data_block.c_str());

	switch (x[0]) {
	case 0x00: cta_vcdb(x + 1, length); return;
	case 0x01:
		if (length < 3) {
			data_block = std::string("Vendor-Specific Video Data Block");
			fail("Invalid length %u < 3.\n", length);
			return;
		}
		oui = (x[3] << 16) + (x[2] << 8) + x[1];
		name = oui_name(oui);
		if (!name) {
			name = oui_name(oui, true);
			if (name)
				reverse = true;
		}
		if (!name) {
			printf("  Vendor-Specific Video Data Block, OUI %s:\n",
			       ouitohex(oui).c_str());
			hex_block("    ", x + 4, length - 3);
			data_block.clear();
			warn("Unknown Extended Vendor-Specific Video Data Block, OUI %s.\n",
			     ouitohex(oui).c_str());
			return;
		}
		data_block = std::string("Vendor-Specific Video Data Block (") + name + ")";
		if (reverse)
			fail((std::string("OUI ") + ouitohex(oui) + " is in the wrong byte order\n").c_str());
		printf("  %s, OUI %s:\n", data_block.c_str(), ouitohex(oui).c_str());
		if (oui == 0x90848b)
			cta_hdr10plus(x + 4, length - 3);
		else if (oui == 0x00d046)
			cta_dolby_video(x + 4, length - 3);
		else
			hex_block("    ", x + 4, length - 3);
		return;
	case 0x02: cta_vesa_vdddb(x + 1, length); return;
	case 0x05: cta_colorimetry_block(x + 1, length); return;
	case 0x06: cta_hdr_static_metadata_block(x + 1, length); return;
	case 0x07: cta_hdr_dyn_metadata_block(x + 1, length); return;
	case 0x0d: cta_vfpdb(x + 1, length); return;
	case 0x0e: cta_svd(x + 1, length, true); return;
	case 0x0f: cta_y420cmdb(x + 1, length); return;
	case 0x11:
		if (length < 3) {
			data_block = std::string("Vendor-Specific Audio Data Block");
			fail("Invalid length %u < 3.\n", length);
			return;
		}
		oui = (x[3] << 16) + (x[2] << 8) + x[1];
		name = oui_name(oui);
		if (!name) {
			name = oui_name(oui, true);
			if (name)
				reverse = true;
		}
		if (!name) {
			printf("  Vendor-Specific Audio Data Block, OUI %s:\n",
			       ouitohex(oui).c_str());
			hex_block("    ", x + 4, length - 3);
			data_block.clear();
			warn("Unknown Extended Vendor-Specific Audio Data Block, OUI %s.\n",
			     ouitohex(oui).c_str());
			return;
		}
		data_block = std::string("Vendor-Specific Audio Data Block (") + name + ")";
		if (reverse)
			fail((std::string("OUI ") + ouitohex(oui) + " is in the wrong byte order\n").c_str());
		printf("  %s, OUI %s:\n", data_block.c_str(), ouitohex(oui).c_str());
		if (oui == 0x00d046)
			cta_dolby_audio(x + 4, length - 3);
		else
			hex_block("    ", x + 4, length - 3);
		return;
	case 0x12: cta_hdmi_audio_block(x + 1, length); return;
	case 0x13: cta_rcdb(x + 1, length); return;
	case 0x14: cta_sldb(x + 1, length); return;
	case 0x20: cta_ifdb(x + 1, length); return;
	case 0x34: cta_displayid_type_7(x + 1, length); return;
	case 0x35: cta_displayid_type_8(x + 1, length); return;
	case 0x42: cta_displayid_type_10(x + 1, length); return;
	case 0x78:
		cta_hf_eeodb(x + 1, length);
		// This must be the first CTA-861 block
		if (!cta.first_block)
			fail("Block starts at a wrong offset.\n");
		return;
	case 0x79:
		if (!cta.last_block_was_hdmi_vsdb)
			fail("HDMI Forum SCDB did not immediately follow the HDMI VSDB.\n");
		if (cta.have_hf_scdb || cta.have_hf_vsdb)
			fail("Duplicate HDMI Forum VSDB/SCDB.\n");
		if (length < 2) {
			data_block = std::string("HDMI Forum SCDB");
			fail("Invalid length %u < 2.\n", length);
			return;
		}
		if (x[1] || x[2])
			printf("  Non-zero SCDB reserved fields!\n");
		cta_hf_scdb(x + 3, length - 2);
		cta.have_hf_scdb = 1;
		return;
	}

	hex_block("    ", x + 1, length);
}

void edid_state::cta_block(const unsigned char *x, bool duplicate)
{
	unsigned length = x[0] & 0x1f;
	const char *name;
	unsigned oui;
	bool reverse = false;
	bool audio_block = false;

	switch ((x[0] & 0xe0) >> 5) {
	case 0x01:
		data_block = "Audio Data Block";
		printf("  %s:\n", data_block.c_str());
		cta_audio_block(x + 1, length);
		audio_block = true;
		break;
	case 0x02:
		data_block = "Video Data Block";
		printf("  %s:\n", data_block.c_str());
		cta_svd(x + 1, length, false);
		break;
	case 0x03:
		oui = (x[3] << 16) + (x[2] << 8) + x[1];
		name = oui_name(oui);
		if (!name) {
			name = oui_name(oui, true);
			if (name)
				reverse = true;
		}
		if (!name) {
			printf("  Vendor-Specific Data Block, OUI %s:\n", ouitohex(oui).c_str());
			hex_block("    ", x + 4, length - 3);
			data_block.clear();
			warn("Unknown Vendor-Specific Data Block, OUI %s.\n",
			     ouitohex(oui).c_str());
			return;
		}
		data_block = std::string("Vendor-Specific Data Block (") + name + ")";
		if (reverse)
			fail((std::string("OUI ") + ouitohex(oui) + " is in the wrong byte order\n").c_str());
		printf("  %s, OUI %s:\n", data_block.c_str(), ouitohex(oui).c_str());
		if (oui == 0x000c03) {
			cta_hdmi_block(x + 1, length);
			cta.last_block_was_hdmi_vsdb = 1;
			cta.first_block = 0;
			// The HDMI OUI is present, so this EDID represents an HDMI
			// interface. And HDMI interfaces must use EDID version 1.3
			// according to the HDMI Specification, so check for this.
			if (base.edid_minor != 3)
				fail("The HDMI Specification requires EDID 1.3 instead of 1.%u.\n",
				     base.edid_minor);
			return;
		}
		if (oui == 0xc45dd8) {
			if (!cta.last_block_was_hdmi_vsdb)
				fail("HDMI Forum VSDB did not immediately follow the HDMI VSDB.\n");
			if (cta.have_hf_scdb || cta.have_hf_vsdb)
				fail("Duplicate HDMI Forum VSDB/SCDB.\n");
			cta_hf_scdb(x + 4, length - 3);
			cta.have_hf_vsdb = 1;
			break;
		}
		if (oui == 0x00001a) {
			cta_amd(x + 4, length - 3);
			break;
		}
		if (oui == 0xca125c && length == 0x15) {
			cta_microsoft(x + 4, length - 3);
			break;
		}
		hex_block("    ", x + 4, length - 3);
		break;
	case 0x04:
		data_block = "Speaker Allocation Data Block";
		printf("  %s:\n", data_block.c_str());
		cta_sadb(x + 1, length);
		audio_block = true;
		if (duplicate)
			fail("Only one instance of this Data Block is allowed.\n");
		break;
	case 0x05:
		data_block = "VESA Display Transfer Characteristics Data Block";
		printf("  %s:\n", data_block.c_str());
		cta_vesa_dtcdb(x + 1, length);
		if (duplicate)
			fail("Only one instance of this Data Block is allowed.\n");
		break;
	case 0x07:
		cta_ext_block(x + 1, length - 1, duplicate);
		break;
	default: {
		unsigned tag = (*x & 0xe0) >> 5;
		unsigned length = *x & 0x1f;

		printf("  Unknown CTA-861 tag 0x%02x, length %u\n", tag, length);
		hex_block("    ", x + 1, length);
		data_block.clear();
		warn("Unknown CTA-861 Data Block %u.\n", tag);
		break;
	}
	}

	// See Table 52 of CTA-861-G for a description of Byte 3
	if (audio_block && !(cta.byte3 & 0x40))
		fail("audio information is present, but bit 6 of Byte 3 of the CTA-861 Extension header indicates no Basic Audio support.\n");
	cta.first_block = 0;
	cta.last_block_was_hdmi_vsdb = 0;
}

void edid_state::preparse_cta_block(const unsigned char *x)
{
	unsigned version = x[1];
	unsigned offset = x[2];

	if (offset >= 4) {
		const unsigned char *detailed;

		for (detailed = x + offset; detailed + 17 < x + 127; detailed += 18) {
			if (memchk(detailed, 18))
				break;
			if (detailed[0] || detailed[1])
				cta.preparsed_total_dtds++;
		}
	}

	if (version < 3)
		return;

	for (unsigned i = 4; i < offset; i += (x[i] & 0x1f) + 1) {
		bool for_ycbcr420 = false;
		unsigned oui;

		switch ((x[i] & 0xe0) >> 5) {
		case 0x03:
			oui = (x[i + 3] << 16) + (x[i + 2] << 8) + x[i + 1];
			if (oui == 0x000c03) {
				cta.has_hdmi = true;
				cta.preparsed_phys_addr = (x[i + 4] << 8) | x[i + 5];
			}
			break;
		case 0x07:
			if (x[i + 1] == 0x0d)
				cta.has_vfpdb = true;
			if (x[i + 1] == 0x13 && (x[i + 2] & 0x40)) {
				cta.preparsed_speaker_count = 1 + (x[i + 2] & 0x1f);
				cta.preparsed_sld = x[i + 2] & 0x20;
			}
			if (x[i + 1] == 0x14)
				cta_preparse_sldb(x + i + 2, (x[i] & 0x1f) - 1);
			if (x[i + 1] == 0x22)
				cta.preparsed_total_vtdbs++;
			if (x[i + 1] == 0x23)
				cta.preparsed_has_t8vtdb = true;
			if (x[i + 1] == 0x32)
				cta.preparsed_total_vtdbs +=
					((x[i] & 0x1f) - 2) / (6 + ((x[i + 2] & 0x70) >> 4));
			if (x[i + 1] != 0x0e)
				continue;
			for_ycbcr420 = true;
			/* fall-through */
		case 0x02:
			for (unsigned j = 1 + for_ycbcr420; j <= (x[i] & 0x1f); j++) {
				unsigned char vic = x[i + j];

				if ((vic & 0x7f) <= 64)
					vic &= 0x7f;
				cta.preparsed_svds[for_ycbcr420].push_back(vic);
				cta.preparsed_has_vic[for_ycbcr420][vic] = true;
			}
			break;
		}
	}
}

void edid_state::parse_cta_block(const unsigned char *x)
{
	unsigned version = x[1];
	unsigned offset = x[2];
	const unsigned char *detailed;

	// See Table 52 of CTA-861-G for a description of Byte 3

	printf("  Revision: %u\n", version);
	if (version == 0)
		fail("Invalid CTA-861 Extension revision 0.\n");
	if (version == 2)
		fail("Deprecated CTA-861 Extension revision 2.\n");
	if (cta.has_hdmi && version != 3)
		fail("The HDMI Specification requires CTA Extension revision 3.\n");
	if (version > 3)
		warn("Unknown CTA-861 Extension revision %u.\n", version);

	if (version >= 1) do {
		if (version == 1 && x[3] != 0)
			fail("Non-zero byte 3.\n");

		if (offset < 4)
			break;

		if (version < 3 && ((offset - 4) / 8)) {
			printf("  8-byte timing descriptors: %u\n", (offset - 4) / 8);
			fail("8-byte descriptors were never used.\n");
		}

		if (version >= 2) {
			if (x[3] & 0x80)
				printf("  Underscans IT Video Formats by default\n");
			else
				warn("IT Video Formats are overscanned by default, but normally this should be underscanned.\n");
			if (x[3] & 0x40)
				printf("  Basic audio support\n");
			if (x[3] & 0x20)
				printf("  Supports YCbCr 4:4:4\n");
			if (x[3] & 0x10)
				printf("  Supports YCbCr 4:2:2\n");
			// Disable this test: this fails a lot of EDIDs, and there are
			// also some corner cases where you only want to receive 4:4:4
			// and refuse a fallback to 4:2:2.
//			if ((x[3] & 0x30) && (x[3] & 0x30) != 0x30)
//				msg(!cta.has_hdmi, "If YCbCr support is indicated, then both 4:2:2 and 4:4:4 %s be supported.\n",
//				    cta.has_hdmi ? "shall" : "should");
			printf("  Native detailed modes: %u\n", x[3] & 0x0f);
			if (cta.first_block)
				cta.byte3 = x[3];
			else if (x[3] != cta.byte3)
				fail("Byte 3 must be the same for all CTA-861 Extension Blocks.\n");
			if (cta.first_block) {
				unsigned native_dtds = x[3] & 0x0f;

				cta.native_timings.clear();
				if (!native_dtds && !cta.has_vfpdb) {
					cta.first_svd_might_be_preferred = true;
				} else if (native_dtds > cta.preparsed_total_dtds) {
					fail("There are more Native DTDs (%u) than DTDs (%u).\n",
					     native_dtds, cta.preparsed_total_dtds);
				}
				if (native_dtds > cta.preparsed_total_dtds)
					native_dtds = cta.preparsed_total_dtds;
				for (unsigned i = 0; i < native_dtds; i++) {
					char type[16];

					sprintf(type, "DTD %3u", i + 1);
					cta.native_timings.push_back(timings_ext(i + 129, type));
				}
				if (cta.has_hdmi && block_nr != (block_map.saw_block_1 ? 2 : 1))
					fail("The HDMI Specification requires that the first Extension Block (that is not a Block Map) is an CTA-861 Extension Block.\n");
			}
		}
		if (version >= 3) {
			unsigned i;

			for (i = 4; i < offset; i += (x[i] & 0x1f) + 1) {
				unsigned tag = (x[i] & 0xe0) << 3;

				if (tag == 0x700)
					tag |= x[i + 1];
				bool duplicate = cta.found_tags.find(tag) != cta.found_tags.end();

				cta_block(x + i, duplicate);
				if (!duplicate)
					cta.found_tags.insert(tag);
			}

			data_block.clear();
			if (i != offset)
				fail("Offset is %u, but should be %u.\n", offset, i);
		}

		data_block = "Detailed Timing Descriptors";
		base.seen_non_detailed_descriptor = false;
		bool first = true;
		for (detailed = x + offset; detailed + 17 < x + 127; detailed += 18) {
			if (memchk(detailed, 18))
				break;
			if (first) {
				first = false;
				printf("  %s:\n", data_block.c_str());
			}
			detailed_block(detailed);
		}
		if (!memchk(detailed, x + 127 - detailed)) {
			data_block = "Padding";
			fail("CTA-861 padding contains non-zero bytes.\n");
		}
	} while (0);

	data_block.clear();
	if (base.has_serial_number && base.has_serial_string)
		warn("Display Product Serial Number is set, so the Serial Number in the Base EDID should be 0.\n");
	if (!cta.has_vic_1 && !base.has_640x480p60_est_timing)
		fail("Required 640x480p60 timings are missing in the established timings"
		     " and the SVD list (VIC 1).\n");
	if ((cta.supported_hdmi_vic_vsb_codes & cta.supported_hdmi_vic_codes) !=
	    cta.supported_hdmi_vic_codes)
		fail("HDMI VIC Codes must have their CTA-861 VIC equivalents in the VSB.\n");
	if (!cta.has_vcdb)
		fail("Missing VCDB, needed for Set Selectable RGB Quantization to avoid interop issues.\n");
}

void edid_state::cta_resolve_svr(vec_timings_ext::iterator iter)
{
	if (iter->svr() == 254) {
		iter->flags = cta.t8vtdb.flags;
		iter->t = cta.t8vtdb.t;
	} else if (iter->svr() <= 144) {
		iter->flags = cta.vec_dtds[iter->svr() - 129].flags;
		iter->t = cta.vec_dtds[iter->svr() - 129].t;
	} else {
		iter->flags = cta.vec_vtdbs[iter->svr() - 145].flags;
		iter->t = cta.vec_vtdbs[iter->svr() - 145].t;
	}
}

void edid_state::cta_resolve_svrs()
{
	for (vec_timings_ext::iterator iter = cta.preferred_timings.begin();
	     iter != cta.preferred_timings.end(); ++iter) {
		if (iter->has_svr())
			cta_resolve_svr(iter);
	}

	for (vec_timings_ext::iterator iter = cta.native_timings.begin();
	     iter != cta.native_timings.end(); ++iter) {
		if (iter->has_svr())
			cta_resolve_svr(iter);
	}
}

void edid_state::check_cta_blocks()
{
	unsigned max_pref_prog_hact = 0;
	unsigned max_pref_prog_vact = 0;
	unsigned max_pref_ilace_hact = 0;
	unsigned max_pref_ilace_vact = 0;

	data_block = "CTA-861";
	for (vec_timings_ext::iterator iter = cta.preferred_timings.begin();
	     iter != cta.preferred_timings.end(); ++iter) {
		if (iter->t.interlaced &&
		    (iter->t.vact > max_pref_ilace_vact ||
		     (iter->t.vact == max_pref_ilace_vact && iter->t.hact >= max_pref_ilace_hact))) {
			max_pref_ilace_hact = iter->t.hact;
			max_pref_ilace_vact = iter->t.vact;
		}
		if (!iter->t.interlaced &&
		    (iter->t.vact > max_pref_prog_vact ||
		     (iter->t.vact == max_pref_prog_vact && iter->t.hact >= max_pref_prog_hact))) {
			max_pref_prog_hact = iter->t.hact;
			max_pref_prog_vact = iter->t.vact;
		}
	}

	unsigned native_prog = 0;
	unsigned native_prog_hact = 0;
	unsigned native_prog_vact = 0;
	bool native_prog_mixed_resolutions = false;
	unsigned native_ilace = 0;
	unsigned native_ilace_hact = 0;
	unsigned native_ilace_vact = 0;
	bool native_ilace_mixed_resolutions = false;

	for (vec_timings_ext::iterator iter = cta.native_timings.begin();
	     iter != cta.native_timings.end(); ++iter) {
		if (iter->t.interlaced) {
			native_ilace++;
			if (!native_ilace_hact) {
				native_ilace_hact = iter->t.hact;
				native_ilace_vact = iter->t.vact;
			} else if (native_ilace_hact != iter->t.hact ||
				   native_ilace_vact != iter->t.vact) {
				native_ilace_mixed_resolutions = true;
			}
		} else {
			native_prog++;
			if (!native_prog_hact) {
				native_prog_hact = iter->t.hact;
				native_prog_vact = iter->t.vact;
			} else if (native_prog_hact != iter->t.hact ||
				   native_prog_vact != iter->t.vact) {
				native_prog_mixed_resolutions = true;
			}
		}
	}

	if (native_prog_mixed_resolutions)
		fail("Native progressive timings are a mix of several resolutions.\n");
	if (native_ilace_mixed_resolutions)
		fail("Native interlaced timings are a mix of several resolutions.\n");
	if (native_ilace && !native_prog)
		fail("A native interlaced timing is present, but not a native progressive timing.\n");
	if (!native_prog_mixed_resolutions && native_prog > 1)
		warn("Multiple native progressive timings are defined.\n");
	if (!native_ilace_mixed_resolutions && native_ilace > 1)
		warn("Multiple native interlaced timings are defined.\n");

	if (!native_prog_mixed_resolutions && native_prog_vact &&
	    (max_pref_prog_vact > native_prog_vact ||
	     (max_pref_prog_vact == native_prog_vact && max_pref_prog_hact > native_prog_hact)))
		warn("Native progressive resolution of %ux%u is smaller than the max preferred progressive resolution %ux%u.\n",
		     native_prog_hact, native_prog_vact,
		     max_pref_prog_hact, max_pref_prog_vact);
	if (!native_ilace_mixed_resolutions && native_ilace_vact &&
	    (max_pref_ilace_vact > native_ilace_vact ||
	     (max_pref_ilace_vact == native_ilace_vact && max_pref_ilace_hact > native_ilace_hact)))
		warn("Native interlaced resolution of %ux%u is smaller than the max preferred interlaced resolution %ux%u.\n",
		     native_ilace_hact, native_ilace_vact,
		     max_pref_ilace_hact, max_pref_ilace_vact);

	if (dispid.native_width && native_prog_hact &&
	    !native_prog_mixed_resolutions) {
		if (dispid.native_width != native_prog_hact ||
		    dispid.native_height != native_prog_vact)
			fail("Mismatch between CTA-861 and DisplayID native progressive resolution.\n");
	}
}

Privacy Policy