summaryrefslogtreecommitdiff
path: root/spectro/chartread.c
blob: 14ee12903a66dd6d7b2f38a260e7c5867bfe9c11 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167

/* Spectrometer/Colorimeter target test chart reader */

/* 
 * Argyll Color Correction System
 *
 * Author: Graeme W. Gill
 * Date:   4/10/96
 *
 * Copyright 1996 - 2013, Graeme W. Gill
 * All rights reserved.
 *
 * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :-
 * see the License.txt file for licencing details.
 */

/* This program reads a reflective or transmissive print target chart */
/* using a spectrometer or colorimeter. */

/* TTBD
 *
 *  When there is a strip misread, should offer the option
 *	of skipping the strip.
 *
 *
 *	Should an a -X [xl] mode that reads a simple list of readings
 *  from a file.
 *
 *	Someone reported that XY mode (spectroscan) didn't work for one paper
 *  orientation ?
 *
 *  Should fix XY chart read to also allow interruption/save/resume,
 *  just like the strip reading code.
 *
 *	Should add verbose option to print average & max DE to expected value
 *  for each patch/strip read.
 *
 */
 
/*
 * Nomencalture:
 *
 *	Largely due to how the strip readers name things, the following terms
 *  are used for how patches are grouped:
 *
 *  Step:   One test patch in a pass, usually labelled with a number.
 *  Pass:	One row of patches in a strip. A pass is usually labeled
 *          with a unique alphabetic label. 
 *  Strip:  A group of passes that can be read by a strip reader.
 *          For an XY instrument, the strip is a complete sheet, and
 *          a each pass is one column. The rows of an XY chart are
 *          the step numbers within a pass.
 *  Sheet:  One sheet of paper, containing full and partial strips.
 *          For an XY instrument, there will be only one strip per sheet.
 *           
 */

#undef DEBUG

#define COMPORT 1		/* Default com port 1..4 */

#undef TEST_EVENT_CALLBACK      /* Report async event callbacks, and implement beep prompt there. */

#undef USESTRDELTA		/* [Und] Use patch delat's for correlation rather than match DE */
						/* Doesn't seem to work as well. Why ? */

#ifdef __MINGW32__
# define WINVER 0x0500
#endif

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <sys/types.h>
#include <time.h>
#include <ctype.h>
#include <string.h>
#ifndef SALONEINSTLIB
#include "copyright.h"
#include "aconfig.h"
#include "numlib.h"
#include "xicc.h"
#include "conv.h"
#include "ui.h"
#include "icc.h"
#else /* SALONEINSTLIB */
#include "sa_config.h"
#include "numsup.h"
#include "cgats.h"
#include "rspl1.h"
#include "xspect.h"
#include "xcolorants.h"
#include "xcal.h"
#include "conv.h"
#include "sa_conv.h"
#endif /* SALONEINSTLIB */
#include "cgats.h"
#include "insttypes.h"
#include "icoms.h"
#include "inst.h"
#include "ccmx.h"
#include "ccss.h"
#ifndef SALONEINSTLIB
#include "dispwin.h"
#include "ccast.h"
#include "dispsup.h"
#endif /* !SALONEINSTLIB */
#include "alphix.h"
#include "sort.h"
#include "instappsup.h"

#include <stdarg.h>

#if defined (NT)
#include <conio.h>
#endif

#ifdef NEVER    /* Not currently used */

/* Convert control chars to ^[A-Z] notation in a string */
static char *
fix_asciiz(char *s) {
	static char buf [200];
	char *d;
	for(d = buf; ;) {
		if (*s < ' ' && *s > '\000') {
			*d++ = '^';
			*d++ = *s++ + '@';
		} else
		*d++ = *s++;
		if (s[-1] == '\000')
			break;
	}
	return buf;
}
#endif /* NEVER */

/* Return the normal Delta E, given two 100 scaled XYZ values */
static double xyzLabDE(double ynorm, double *pat, double *ref) {
	int i;
	double Lab1[3];
	double Lab2[3];

	for (i = 0; i < 3; i++) {
		Lab1[i] = ynorm * pat[i]/100.0;
		Lab2[i] = ref[i]/100.0;
	}

	icmXYZ2Lab(&icmD50, Lab1, Lab1);
	icmXYZ2Lab(&icmD50, Lab2, Lab2);

	return icmLabDE(Lab1, Lab2);
}

#ifdef USESTRDELTA
/* Return the -ve correlation of the delta E's between steps */
static double xyzLabcorr(double *pat0, double *ref0,
                         double *pat1, double *ref1) {
	double p0[3], p1[3], pd[3];
	double r0[3], r1[3], rd[3];

	icmXYZ2Lab(&icmD50, p0, pat0);
	icmXYZ2Lab(&icmD50, p1, pat1);
	ICMSUB3(pd, p0, p1);
	icmXYZ2Lab(&icmD50, r0, ref0);
	icmXYZ2Lab(&icmD50, r1, ref1);
	ICMSUB3(rd, r0, r1);

	return -icmDot3(rd, pd);
}
#endif

/* A chart read color structure */
/* This can hold all representations simultaniously */
typedef struct {
	char *id;					/* Id string (e.g. "1") */
	char *loc;					/* Location string (e.g. "A1") */
	int loci;					/* Location integer = pass * 256 + step */

	int n;						/* Number of colorants */
	double dev[ICX_MXINKS];		/* Value of colorants */
	double eXYZ[3];				/* Expected XYZ values (100.0 scale for ref.) */

	int rr;						/* nz if reading read (used for tracking unread patches) */

	inst_meas_type mtype;		/* Measurement type */
	double XYZ[3];				/* Colorimeter readings (100.0 scale for ref.) */

	xspect sp;					/* Spectrum. sp.spec_n > 0 if valid, 100 scaled for ref. */
} chcol;

/* Convert a base 62 character into a number */
/* (This is used for converting the PASSES_IN_STRIPS string */
/* (Could convert this to using an alphix("0-9A-Za-Z")) */
static int b62_int(char *p) {
	int cv, rv;

	cv = *p;
	if (cv == '\000')
		rv = 0;
	else if (cv <= '9')
		rv = cv - '0';
	else if (cv <= 'Z')
		rv = cv - 'A' + 10;
	else
		rv = cv - 'a' + 36;
	return rv;
}

#ifdef TEST_EVENT_CALLBACK
void test_event_callback(void *cntx, inst_event_type event) {
	a1logd(g_log,0,"Got event_callback with 0x%x\n",event);

	if (event == inst_event_scan_ready)
		normal_beep();
}
#endif

/* Deal with an instrument error. */
/* Return 0 to retry, 1 to abort */
static int ierror(inst *it, inst_code ic) {
	int ch;
	empty_con_chars();
	printf("Got '%s' (%s) error.\nHit Esc or 'q' to give up, any other key to retry:",
	       it->inst_interp_error(it, ic), it->interp_error(it, ic));
	fflush(stdout);
	ch = next_con_char();
	printf("\n");
	if (ch == 0x03 || ch == 0x1b || ch == 'q' || ch == 'Q')	/* ^C, Escape or Q */
		return 1;
	return 0;
}

/* Read all the strips, and return nonzero on abort/error */
static int
read_strips(
instType itype,		/* Chart instrument type */
chcol **scols,		/* Location sorted pointers to cols (return values) */
instType *atype,	/* Return the instrument type used to read the chart */
int npat,			/* Total valid patches */
int totpa, 			/* Total passes (rows) */
int stipa,			/* Steps (patches) in pass (Excluding DTP51 Max/Min) */
int *pis,			/* Passes in each strip (rows in each sheet), 0 terminated */
alphix *paix,		/* Pass (row) index generators */
alphix *saix,		/* Step (patch) index generators */
int ixord,			/* Index order, 0 = pass then step */
int rstart,			/* Random start/chart id */
int rand,			/* Random order used  - can do auto strip ID & Bi-Dir */
int hex,			/* Hexagon test patches */
icompath *ipath,	/* Instrument path to open */
flow_control fc,	/* flow control */
double plen,		/* Patch length in mm (used by DTP20/41) */
double glen,		/* Gap length in mm  (used by DTP20/41) */
double tlen,		/* Trailer length in mm  (used by DTP41T) */
int trans,			/* Use transmission mode */
int emis,			/* Use emissive mode */
int displ,			/* 1 = Use display emissive mode, 2 = display bright rel. */
					/* 3 = display white rel. */
int ditype,			/* Display type selection charater */
inst_opt_filter fe,	/* Optional filter */
xcalstd scalstd,	/* X-Rite calibration standard to set */
xcalstd *ucalstd,	/* X-Rite calibration standard actually used */
int nocal,			/* Disable initial calibration */
int disbidi,		/* Disable automatic bi-directional strip recognition */
int highres,		/* Use high res spectral mode */
char *ccxxname,		/* Colorimeter Correction/Colorimeter Calibration name */
icxObserverType obType,	/* ccss observer */
xspect custObserver[3],	/* If obType = icxOT_custom */
double scan_tol,	/* Modify patch consistency tolerance */
int pbypatch,		/* Patch by patch measurement */
int xtern,			/* Use external (user supplied) values rather than instument read */
					/* 1 = Lab, 2 = XYZ */ 
int spectral,		/* Generate spectral info flag */
int uvmode,			/* ~~~ i1pro2 test mode ~~~ */
int accurate_expd,	/* Expected values can be assumed to be accurate */
int emit_warnings,	/* Emit warnings for wrong strip, unexpected value */
int doplot,			/* Plot each spectra in patch by patch mode */
a1log *log			/* verb, debug & error log */
) {
	inst *it = NULL;
	inst_mode  cap;		/* Mode capability */
	inst2_capability cap2;
	inst3_capability cap3;
	int n, i, j;
	int rmode = 0;		/* Read mode, 0 = spot, 1 = strip, 2 = xy, 3 = chart */
	int svdmode = 0;	/* Saved mode, 0 = no, 1 = use saved mode */
	inst_code rv;
	baud_rate br = baud_38400;	/* Target baud rate */
	int skipp = 0;		/* Initial strip readings to skip */
	int	nextrap = 0;	/* Number of extra patches for max and min */
	int ch;

	if (xtern == 0) {		/* Use instrument values */

		/* Instrument that the chart is set up for */
		if (itype == instDTP51) {
			skipp = 1;		/* First reading is the Max density patch */
			nextrap = 2;
		}

		if ((it = new_inst(ipath, 0, log, DUIH_FUNC_AND_CONTEXT)) == NULL) {
			printf("Unknown, inappropriate or no instrument detected\n");
			return -1;
		}

#ifdef TEST_EVENT_CALLBACK
		it->set_event_callback(it, test_event_callback, (void *)it);
#endif

		/* Establish communications */
		if ((rv = it->init_coms(it, br, fc, 15.0)) != inst_ok) {
			printf("Establishing communications with instrument failed with message '%s' (%s)\n",
			       it->inst_interp_error(it, rv), it->interp_error(it, rv));
			it->del(it);
			return -1;
		}

		/* set filter configuration before initialising/calibrating */
		if (fe != inst_opt_filter_unknown) {
			if ((rv = it->get_set_opt(it, inst_opt_set_filter, fe)) != inst_ok) {
				printf("Setting filter configuration not supported by instrument\n");
				it->del(it);
				return -1;
			}
		}

		/* Set it up the way we want */
		if ((rv = it->init_inst(it)) != inst_ok) {
			printf("Initialising instrument failed with message '%s' (%s)\n",
			       it->inst_interp_error(it, rv), it->interp_error(it, rv));
			it->del(it);
			return -1;
		}

		/* For reflective */
		if (emis == 0 && trans == 0) {

			/* set XRGA conversion */
			if (scalstd != xcalstd_none) {
				if ((rv = it->get_set_opt(it, inst_opt_set_xcalstd, scalstd)) != inst_ok) {
					printf("Warning: Setting calibration standard not supported by instrument\n");
				}
			}
	
			/* Get actual XRGA conversion */
			if (ucalstd != NULL) {
				if ((rv = it->get_set_opt(it, inst_opt_get_xcalstd, ucalstd)) != inst_ok) {
					*ucalstd = xcalstd_none;
				}
			}
		}

		*atype = it->get_itype(it);		/* Actual instrument type */
		if (*atype != itype)
			a1logv(log, 1, "Warning: chart is for %s, using instrument %s\n",inst_name(itype),inst_name(*atype));

		{
			int ccssset = 0;
			inst_mode mode = 0;

			it->capabilities(it, &cap, &cap2, &cap3);

			if (trans) {
				if (!IMODETST(cap, inst_mode_transmission)) {
					printf("Need transmission reading capability,\n");
					printf("and instrument doesn't support it\n");
					it->del(it);
					return -1;
				}

			} else if (emis || displ) {

				if (emis) {
					if (it->check_mode(it, inst_mode_emis_spot) != inst_ok
					 && it->check_mode(it, inst_mode_emis_strip) != inst_ok) {
						printf("Need emissive spot or strip reading capability\n");
						printf("and instrument doesn't support it\n");
						it->del(it);
						return -1;
					}
				} else {
					/* Should we allow for non-adaptive mode ? */
					if (it->check_mode(it, inst_mode_emis_spot) != inst_ok) {
						printf("Need emissive reading capability\n");
						printf("and instrument doesn't support it\n");
						it->del(it);
						return -1;
					}
				}

			} else {	/* reflectance */
				if (!IMODETST(cap, inst_mode_reflection)) {
					printf("Need reflection spot, strip, xy or chart reading capability,\n");
					printf("and instrument doesn't support it\n");
					it->del(it);
					return -1;
				}
			}

			/* Set display type or calibration mode */
			if (ditype != 0) {

				if (cap2 & inst2_disptype) {
					int ix;
					if ((ix = inst_get_disptype_index(it, ditype, 0)) < 0) {
						printf("Setting display type ix %d failed\n",ix);
						it->del(it);
						return -1;
					}
		
					if ((rv = it->set_disptype(it, ix)) != inst_ok) {
						printf("Setting display type ix %d not supported by instrument\n",ix);
						it->del(it);
						return -1;
					}
				} else
					printf("Display type ignored - instrument doesn't support display type selection\n");
			}

			if (spectral && !IMODETST(cap, inst_mode_spectral)) {
				printf("Warning: Instrument isn't capable of spectral measurement\n");
				spectral = 0;
			}

			/* Colorimeter Correction Matrix */
			if (ccxxname[0] != '\000') {
				ccss *cs = NULL;
				ccmx *cx = NULL;

				if ((cx = new_ccmx()) == NULL) {
					printf("\nnew_ccmx failed\n");
					it->del(it);
					return -1;
				}
				if (cx->read_ccmx(cx,ccxxname) == 0) {
					if ((cap2 & inst2_ccmx) == 0) {
						printf("\nInstrument doesn't have Colorimeter Correction Matrix capability\n");
						it->del(it);
						return -1;
					}
					if ((rv = it->col_cor_mat(it, cx->dtech, cx->cc_cbid, cx->matrix)) != inst_ok) {
						printf("\nSetting Colorimeter Correction Matrix failed with error :'%s' (%s)\n",
					     	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
						cx->del(cx);
						it->del(it);
						return -1;
					}
					cx->del(cx);
				} else {
					cx->del(cx);
					cx = NULL;
					
					/* CCMX failed, try CCSS */
					if ((cs = new_ccss()) == NULL) {
						printf("\nnew_ccss failed\n");
						it->del(it);
						return -1;
					}
					if (cs->read_ccss(cs,ccxxname)) {
						printf("\nReading CCMX/CCSS File '%s' failed with error %d:'%s'\n",
					     	       ccxxname, cs->errc, cs->err);
						cs->del(cs);
						it->del(it);
						return -1;
					}
					if ((cap2 & inst2_ccss) == 0) {
						printf("\nInstrument doesn't have Colorimeter Calibration Spectral Sample capability\n");
						cs->del(cs);
						it->del(it);
						return -1;
					}
					if ((rv = it->get_set_opt(it, inst_opt_set_ccss_obs, obType, custObserver)) != inst_ok) {
						printf("\nSetting CCSS observer failed with error :'%s' (%s)\n",
					     	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
						cs->del(cs);
						it->del(it);
						return -1;
					}
					if ((rv = it->col_cal_spec_set(it, cs->dtech, cs->samples, cs->no_samp)) != inst_ok) {
						printf("\nSetting Colorimeter Calibration Spectral Samples failed with error :'%s' (%s)\n",
					     	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
						cs->del(cs);
						it->del(it);
						return -1;
					}
					ccssset = 1;
					cs->del(cs);
				}
			}

			/* If non-standard observer wasn't set by a CCSS file above */
			if (obType != icxOT_default && (cap2 & inst2_ccss) && ccssset == 0) {
				if ((rv = it->get_set_opt(it, inst_opt_set_ccss_obs, obType, custObserver)) != inst_ok) {
					printf("\nSetting CCSS observer failed with error :'%s' (%s)\n",
				     	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
					it->del(it);
					return -1;
				}
			}

			/* Disable initial calibration of machine if selected */
			if (nocal != 0){
				if ((rv = it->get_set_opt(it,inst_opt_noinitcalib, 0)) != inst_ok) {
					printf("Setting no-initial calibrate failed with '%s' (%s)\n",
				       it->inst_interp_error(it, rv), it->interp_error(it, rv));
					printf("Disable inital-calibrate not supported\n");
				}
			}

			/* If it battery powered, show the status of the battery */
			if ((cap2 & inst2_has_battery)) {
				double batstat = 0.0;
				if ((rv = it->get_set_opt(it, inst_stat_battery, &batstat)) != inst_ok) {
					printf("\nGetting instrument battery status failed with error :'%s' (%s)\n",
			       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
					it->del(it);
					return -1;
				}
				printf("The battery charged level is %.0f%%\n",batstat * 100.0);
			}

			if (scan_tol != 1.0) {
				if (cap2 & inst2_has_scan_toll) {
					inst_code ev;
					if ((ev = it->get_set_opt(it, inst_opt_scan_toll, scan_tol)) != inst_ok) {
						printf("\nSetting patch consistency tolerance to %f failed with error :'%s' (%s)\n",
				       	       scan_tol, it->inst_interp_error(it, ev), it->interp_error(it, ev));
						it->del(it);
						return -1;
					}
				} else {
					a1logv(log, 1, "Modified patch consistency tolerance ignored - instrument doesn't support it\n");
				}
			}

			/* Should look at instrument type & user spec ??? */
			if (trans) {
				if (pbypatch
				 && it->check_mode(it, inst_mode_trans_spot) == inst_ok) {
					mode = inst_mode_trans_spot;
					rmode = 0;
				} else if (it->check_mode(it, inst_mode_trans_chart) == inst_ok) {
					mode = inst_mode_trans_chart;
					rmode = 3;
				} else if (it->check_mode(it, inst_mode_trans_xy) == inst_ok) {
					mode = inst_mode_trans_xy;
					rmode = 2;
				} else if (it->check_mode(it, inst_mode_trans_strip) == inst_ok) {
					mode = inst_mode_trans_strip;
					rmode = 1;
				} else {
					mode = inst_mode_trans_spot;
					rmode = 0;
				}
			} else if (displ) {
				/* We assume a display mode will always be spot by spot */
				mode = inst_mode_emis_spot;
				rmode = 0;
			} else if (emis) {
				if (pbypatch
				 && it->check_mode(it, inst_mode_emis_spot) == inst_ok) {
					mode = inst_mode_emis_spot;
					rmode = 0;
				} else if (it->check_mode(it, inst_mode_emis_strip) == inst_ok) {
					mode = inst_mode_emis_strip;
					rmode = 1;
				} else {
					mode = inst_mode_emis_spot;
					rmode = 0;
				}
			} else {	/* Reflectance */
				inst_stat_savdrd sv = inst_stat_savdrd_none;

				/* See if instrument has a saved mode, and if it has data that */
				/* could match this chart */
				if (IMODETST(cap, inst_mode_s_reflection)) {

					a1logv(log, 2, "Instrument has a svaed chart mode\n");

					if ((rv = it->get_set_opt(it, inst_stat_saved_readings, &sv)) != inst_ok) {
						printf("Getting saved reading status failed with error :'%s' (%s)\n",
				       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
						it->del(it);
						return -1;
					}

					if (sv & inst_stat_savdrd_chart) {
						int no_patches, no_rows, pat_per_row, chart_id, missing_row;

						a1logv(log, 2, "There is a saved chart\n");

						if ((rv = it->get_set_opt(it, inst_stat_s_chart,
						    &no_patches, &no_rows, &pat_per_row, &chart_id, &missing_row))
							                                                      != inst_ok) {
							printf("Getting saved chart details failed with error :'%s' (%s)\n",
					       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
							it->del(it);
							return -1;
						}

						if (npat != no_patches || totpa != no_rows
						 || stipa != pat_per_row || rstart != chart_id) {
							printf("Can't use saved chart because it doesn't match\n");
							sv &= ~inst_stat_savdrd_chart;
						}

						if (missing_row >= 0) {
							printf("Can't use saved chart because row %d hasn't been read\n",missing_row);
							sv &= ~inst_stat_savdrd_chart;
						}
					}

					if (sv & inst_stat_savdrd_xy) {
						int nstr;
						int no_sheets, no_patches, no_rows, pat_per_row;

						/* Count the number of strips (sheets) */
						for (nstr = 0; pis[nstr] != 0; nstr++)
							;

						if ((rv = it->get_set_opt(it, inst_stat_s_xy,
						    &no_sheets, &no_patches, &no_rows, &pat_per_row)) != inst_ok) {
							printf("Getting saved sheet details failed with error :'%s' (%s)\n",
					       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
							it->del(it);
							return -1;
						}

						if (nstr != no_sheets || npat != no_patches
						 || totpa != no_rows || stipa != pat_per_row) {
							a1logv(log, 1, "Can't use saved sheets because they don't match chart\n");
							a1logv(log, 1, "Got %d sheets, expect %d. Got %d patches, expect %d.\n",
							       no_sheets,nstr,no_patches,npat);
							a1logv(log, 1, "Got %d rows, expect %d. Got %d patches per row, expect %d.\n",
							       no_rows,totpa,pat_per_row,stipa);
							sv &= ~inst_stat_savdrd_xy;
						}
					}

					if (sv & inst_stat_savdrd_strip) {
						int no_patches, no_rows, pat_per_row;

						if ((rv = it->get_set_opt(it, inst_stat_s_strip,
						    &no_patches, &no_rows, &pat_per_row)) != inst_ok) {
							printf("Getting saved strip details failed with error :'%s' (%s)\n",
					       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
							it->del(it);
							return -1;
						}

						if (npat != no_patches || totpa != no_rows || stipa != pat_per_row) {
							a1logv(log, 1, "Can't use saved strips because they don't match chart\n");
							sv &= ~inst_stat_savdrd_strip;
						}
					}

					if (sv & inst_stat_savdrd_spot) {
						int no_patches;

						if ((rv = it->get_set_opt(it, inst_stat_s_spot, &no_patches)) != inst_ok) {
							printf("Getting saved spot details failed with error :'%s' (%s)\n",
					       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
							it->del(it);
							return -1;
						}

						if (npat != no_patches) {
							a1logv(log, 1, "Can't use saved spots because they don't match chart - got %d patches, expect %d\n",no_patches,npat);
							sv &= ~inst_stat_savdrd_spot;
						}
					}
				}

				if (pbypatch
				        && it->check_mode(it, inst_mode_s_ref_spot) == inst_ok
				        && (sv & inst_stat_savdrd_spot)) {
					mode = inst_mode_s_ref_spot;
					svdmode = 1;
					rmode = 0;

				} else if (it->check_mode(it, inst_mode_s_ref_chart) == inst_ok
				        && (sv & inst_stat_savdrd_chart)) {
					mode = inst_mode_s_ref_chart;
					svdmode = 1;
					rmode = 3;

				} else if (it->check_mode(it, inst_mode_s_ref_xy) == inst_ok
				        && (sv & inst_stat_savdrd_xy)) {
					mode = inst_mode_s_ref_xy;
					svdmode = 1;
					rmode = 2;

				} else if (it->check_mode(it, inst_mode_s_ref_strip) == inst_ok
				        && (sv & inst_stat_savdrd_strip)) {
					mode = inst_mode_s_ref_strip;
					svdmode = 1;
					rmode = 1;

				} else if (it->check_mode(it, inst_mode_s_ref_spot) == inst_ok
				        && (sv & inst_stat_savdrd_spot)) {
					mode = inst_mode_s_ref_spot;
					svdmode = 1;
					rmode = 0;

				} else if (pbypatch 
				        && it->check_mode(it, inst_mode_ref_spot) == inst_ok) {
					mode = inst_mode_ref_spot;
					rmode = 0;

				} else if (it->check_mode(it, inst_mode_ref_chart) == inst_ok) {
					mode = inst_mode_ref_chart;
					rmode = 3;

				} else if (it->check_mode(it, inst_mode_ref_xy) == inst_ok) {
					mode = inst_mode_ref_xy;
					rmode = 2;

				} else if (it->check_mode(it, inst_mode_ref_strip) == inst_ok) {
					mode = inst_mode_ref_strip;
					rmode = 1;

				} else {
					mode = inst_mode_ref_spot;
					rmode = 0;
				}
			}
			if (spectral)
				mode |= inst_mode_spectral;

			if (highres) {
				if (IMODETST(cap, inst_mode_highres)) {
					mode |= inst_mode_highres;
				} else {
					a1logv(log, 1, "high resolution ignored - instrument doesn't support high res. mode\n");
				}
			}

			// ~~~ i1pro2 test code ~~~ */
			if (uvmode) {
				if (!IMODETST(cap, inst_mode_ref_uv)) {
					warning("UV measurement mode requested, but instrument doesn't support this mode");
					uvmode = 0;
				} else {
					mode |= inst_mode_ref_uv;
				}
			}

			if ((rv = it->set_mode(it, mode)) != inst_ok) {
				printf("\nSetting instrument mode failed with error :'%s' (%s)\n",
			     	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
				it->del(it);
				return -1;
			}
			it->capabilities(it, &cap, &cap2, &cap3);
		}
	}

	/* -------------------------------------------------- */
	if (rmode == 3) {		/* For chart mode, read all at once */
		int chid;			/* Chart ID number */
		ipatch *vals;		/* Array of values */

		if (svdmode)
			printf("Reading chart from values saved in instrument\n");
		else  {
			/* ~~999 ??? Need to setup trigger and wait for it appropriately ???  */
			printf("Reading the whole chart in one go\n");
		}

		/* Allocate space for patches */
		if ((vals = (ipatch *)calloc(sizeof(ipatch), npat)) == NULL)
			error("Malloc failed!");

		/* Initialise return values */
		for (i = 0; i < npat; i++) {
			strncpy(vals[i].loc, scols[i]->loc, ICOM_MAX_LOC_LEN-1);
			vals[i].loc[ICOM_MAX_LOC_LEN-1] = '\000';
			vals[i].XYZ_v = 0;
		}

		for (;;) {		/* retry loop */
			if ((rv = it->read_chart(it, npat, totpa, stipa, pis, rstart, vals)) == inst_ok)
				break;
			if (ierror(it, rv) == 0)	/* Ignore */
				continue;
			break;						/* Abort */
		}
		if (rv != inst_ok) {
			free(vals);
			it->del(it);
			return -1;
		}

		printf("Chart read OK\n");

		/* Transfer the values */
		/* We assume they are all in the right order */
		for (i = 0; i < npat; i++) {
			/* Copy XYZ */
			if (vals[i].XYZ_v == 0)
				error("Instrument didn't return XYZ value for patch %d, loc %s",i,scols[i]->loc);
			for (j = 0; j < 3; j++)
				scols[i]->XYZ[j] = vals[i].XYZ[j];

			/* Copy spectral */
			if (vals[i].sp.spec_n > 0) {
				scols[i]->sp = vals[i].sp;
			}
			scols[i]->mtype = vals[i].mtype;
			scols[i]->rr = 1;		/* Has been read */
		}
		free(vals);

	/* -------------------------------------------------- */
	/* !!! Hmm. Should really allow user to navigate amongst the sheets, */
	/* !!! and skip any sheets already read. */
	} else if (rmode == 2) { /* For xy mode, read each sheet */
		ipatch *vals;
		int nsheets, sheet;		/* Total sheets/current sheet (sheet == pass) */
		int rpat = npat;		/* Remaining total patches */
		int pai;				/* Overall pass index */
		int sti;				/* Overall step index */
		char *pn[3] = { NULL, NULL, NULL} ;	/* Location 1/2/3 Pass name (letters) */
		char *sn[3] = { NULL, NULL, NULL} ;	/* Location 1/2/3 Step name (numbers) */
		int k;
		
		{	/* Figure the maximum number sheets and of patches in a sheet, for allocation */
			int lpaist = 0;			/* Largest number of passes in strip/sheet */
			for (nsheets = 0; pis[nsheets] != 0; nsheets++) {
				if (pis[nsheets] > lpaist)
					lpaist = pis[nsheets];
			}

			if ((vals = (ipatch *)calloc(sizeof(ipatch), (lpaist * stipa))) == NULL)
				error("Malloc failed!");
		}

		/* Make sure we can access the instrument table */
		if (cap2 & inst2_xy_holdrel) {
			it->xy_clear(it);
		}

		/* XY mode doesn't use the trigger mode */

		/* For each pass (==sheet) */
		for (sheet = 1, pai = sti = 0; pis[sheet-1] != 0; sheet++) {
			int paist;		/* Passes in current Strip (== columns in current sheet) */ 
			int rnpatch;	/* Rounded up (inc. padding) Patches in current pass (sheet) */
			int npatch;		/* Patches in pass (sheet), excluding padding */
			int fspipa;		/* First pass steps in pass */
			int nloc;		/* Number of fiducial locations needed */
			double ox = 0.0, oy = 0.0;		/* Origin */
			double ax = 1.0, ay = 0.0;		/* pass increment */
			double aax = 0.0, aay = 0.0;	/* pass offset for hex odd steps */
			double px = 0.0, py = 1.0;		/* step (==patch) increment */

			fspipa = stipa;
			paist = pis[sheet-1];			/* columns (letters) in sheet (strip) */
			npatch = rnpatch = paist * stipa;	/* Total patches including padding */
			if (npatch > rpat) {				/* This is a non-full pass */
				if (paist == 1) {
					fspipa -= (npatch - rpat);/* Last patch in first strip */
					if (fspipa < 1)
						error ("Assert in read_strips, fspipa = %d",fspipa);
				}
				npatch = rpat;				/* Total patches excluding padding */
			}

			nloc = 3;
			if (paist == 1) {
				nloc = 2;					/* Only one strip, so only 2 locations needed */
				if (fspipa == 1)
					nloc = 1;				/* Only one strip, one patch, so one location */
			}
			for (k = 0; k < 3; k++) {
				if (pn[k] != NULL)
					free(pn[k]);
				if (sn[k] != NULL)
					free(sn[k]);
			}
			pn[0] = paix->aix(paix, pai);			/* First pass (letter) */
			sn[0] = saix->aix(saix, 0);				/* First step (patch) (number) */
			pn[1] = paix->aix(paix, pai);			/* First pass (letter) */
			sn[1] = saix->aix(saix, 0 + fspipa-1);	/* Last step (patch) (number) */
			pn[2] = paix->aix(paix, pai + paist-1);	/* Last pass (letter) */
			sn[2] = saix->aix(saix, 0);				/* First step (patch) (number) */

			empty_con_chars();
			if (sheet == 1) {
				printf("Please place sheet %d of %d on table, then\n",sheet, nsheets);
			} else
				printf("\nPlease remove previous sheet, then place sheet %d of %d on table, then\n",sheet, nsheets);
				printf("hit return to continue, Esc or 'q' to give up"); fflush(stdout);
				if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
					printf("\n");
					for (k = 0; k < 3; k++) {
						if (pn[k] != NULL)
							free(pn[k]);
						if (sn[k] != NULL)
							free(sn[k]);
					}
					it->del(it);
					return -1;
				}
			printf("\n");

			if (cap2 & inst2_xy_holdrel) {

				/* Hold table */
				for (;;) {		/* retry loop */
					if ((rv = it->xy_sheet_hold(it)) == inst_ok)
						break;
					if (ierror(it, rv) == 0)	/* Ignore */
						continue;
					break;						/* Abort */
				}
				if (rv != inst_ok) {
					for (k = 0; k < 3; k++) {
						if (pn[k] != NULL)
							free(pn[k]);
						if (sn[k] != NULL)
							free(sn[k]);
					}
					it->del(it);
					return -1;
				}
			}

			if (cap2 & inst2_xy_locate) {
				int ll;
				double x[3], y[3];

				/* Allow user location of points */
				for (;;) {		/* retry loop */
					if ((rv = it->xy_locate_start(it)) == inst_ok)
						break;
					if (ierror(it, rv) == 0)	/* Ignore */
						continue;
					break;						/* Abort */
				}
				if (rv != inst_ok) {
					for (k = 0; k < 3; k++) {
						if (pn[k] != NULL)
							free(pn[k]);
						if (sn[k] != NULL)
							free(sn[k]);
					}
					it->del(it);
					return -1;
				}

				/* For each location point */
				for (ll = 0; ll < nloc; ll++) {
					empty_con_chars();
					printf("\nUsing the XY table controls, locate patch %s%s with the sight,\n",
					        pn[ll], sn[ll]);
					printf("then hit return to continue, Esc or 'q' to give up"); fflush(stdout);
						if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
							printf("\n");
							for (k = 0; k < 3; k++) {
								if (pn[k] != NULL)
									free(pn[k]);
								if (sn[k] != NULL)
									free(sn[k]);
							}
							it->del(it);
							return -1;
						}
					printf("\n");

					for (;;) {		/* retry loop */
						if ((rv = it->xy_get_location(it, &x[ll], &y[ll])) == inst_ok)
							break;
						if (ierror(it, rv) == 0)	/* Ignore */
							continue;
						break;						/* Abort */
					}
					if (rv != inst_ok) {
						for (k = 0; k < 3; k++) {
							if (pn[k] != NULL)
								free(pn[k]);
							if (sn[k] != NULL)
								free(sn[k]);
						}
						it->del(it);
						return -1;
					}
				}

				/* We're done with user control */
				for (;;) {		/* retry loop */
					if ((rv = it->xy_locate_end(it)) == inst_ok)
						break;
					if (ierror(it, rv) == 0)	/* Ignore */
						continue;
					break;						/* Abort */
				}
				if (rv != inst_ok) {
					for (k = 0; k < 3; k++) {
						if (pn[k] != NULL)
							free(pn[k]);
						if (sn[k] != NULL)
							free(sn[k]);
					}
					it->del(it);
					return -1;
				}

				/* Convert point locations into navigation values */
				ox = x[0];
				oy = y[0];
				if (hex) {
					double kk = sqrt(1.0/3.0);
					double nn = fspipa - 1.0;
					if (((fspipa-1) & 1) == 0) {	/* [0] & [1] are lined up */
						if (nloc == 3) {
							px = (x[1] - x[0])/nn;
							py = (y[1] - y[0])/nn;
							ax = (x[2] - x[0])/(paist-1);
							ay = (y[2] - y[0])/(paist-1);
							aax = 0.5 * ax;
							aay = 0.5 * ay;
						} else if (nloc == 2) {
							px = (x[1] - x[0])/nn;
							py = (y[1] - y[0])/nn;
							aax = kk * py;			/* Scale and rotate */
							aay = kk * -px;
						}
					} else {						/* [0] & [1] are offset by aa[xy] */
						if (nloc == 3) {
							ax = (x[2] - x[0])/(paist-1);
							ay = (y[2] - y[0])/(paist-1);
							aax = 0.5 * ax;
							aay = 0.5 * ay;
							px = (x[1] - x[0] - aax)/nn;
							py = (y[1] - y[0] - aay)/nn;
						} else if (nloc == 2) {
							px =  (nn * (x[1] - x[0]) - kk * (y[1] - y[0]))/(kk * kk + nn * nn);
							py =  (nn * (y[1] - y[0]) + kk * (x[1] - x[0]))/(kk * kk + nn * nn);
							aax = kk * py;			/* Scale and rotate */
							aay = kk * -px;
						}
					}

				} else {	/* Rectangular patches */
					if (paist > 1) {
						ax = (x[2] - x[0])/(paist-1);
						ay = (y[2] - y[0])/(paist-1);
					}
					if (fspipa > 1) {
						px = (x[1] - x[0])/(fspipa-1);
						py = (y[1] - y[0])/(fspipa-1);
					}
					aax = aay = 0.0;
				}
			}

			/* Read the sheets patches */
			for (;;) {		/* retry loop */
				if ((rv = it->read_xy(it, paist, stipa, npatch, pn[0], sn[0],
					                  ox, oy, ax, ay, aax, aay, px, py, vals)) == inst_ok)
					break;
				if (ierror(it, rv) == 0)	/* Ignore */
					continue;
				break;						/* Abort */
			}
			if (rv != inst_ok) {
				for (k = 0; k < 3; k++) {
					if (pn[k] != NULL)
						free(pn[k]);
					if (sn[k] != NULL)
						free(sn[k]);
				}
				it->del(it);
				return -1;
			}

			printf("Sheet %d of %d read OK\n",sheet, nsheets);

			/* Transfer the values */
			/* We assume they are all in the right order */
			for (i = 0; i < npatch; i++, sti++) {
				/* Copy XYZ */
				if (vals[i].XYZ_v == 0)
					error("Instrument didn't return XYZ value for patch %d, loc %s",i,scols[sti]->loc);
				for (j = 0; j < 3; j++)
					scols[sti]->XYZ[j] = vals[i].XYZ[j];

				/* Copy spectral */
				if (vals[i].sp.spec_n > 0) {
					scols[sti]->sp = vals[i].sp;
				}
				scols[sti]->rr = 1;		/* Has been read */
			}

			if (cap2 & inst2_xy_holdrel) {

				/* Release table and reset head */
				for (;;) {		/* retry loop */
					if ((rv = it->xy_clear(it)) == inst_ok)
						break;
					if (ierror(it, rv) == 0)	/* Ignore */
						continue;
					break;						/* Abort */
				}
				if (rv != inst_ok) {
					for (k = 0; k < 3; k++) {
						if (pn[k] != NULL)
							free(pn[k]);
						if (sn[k] != NULL)
							free(sn[k]);
					}
					it->del(it);
					return -1;
				}
			}

			pai += paist;		/* Tracj next first pass in strip */
			rpat -= npatch;		/* Track remaining patches */
		}
		for (k = 0; k < 3; k++) {
			if (pn[k] != NULL)
				free(pn[k]);
			if (sn[k] != NULL)
				free(sn[k]);
		}
		free(vals);

		printf("\nPlease remove last sheet from table\n"); fflush(stdout);

	/* -------------------------------------------------- */
	} else if (rmode == 1) {	/* For strip mode, simply read each strip */
		int uswitch = 0;		/* 0 if switch can be used, 1 if switch or keyboard */
		ipatch *vals;			/* Values read for a strip pass */
		int incflag = 0;		/* 0 = no change, 1 = increment, 2 = inc unread, */
								/* -1 = decrement, -2 = done */
		int stix;				/* Strip index */
		int pai;				/* Current pass in current strip */
		int oroi;				/* Overall row index */

		if (
		    itype != instDTP20 &&
	        !rand && disbidi == 0) {
			warning("Can't do bi-directional strip recognition without randomized patch locations");
		}

		/* Do any needed calibration before the user places the instrument on a desired spot */
		if (it->needs_calibration(it) & inst_calt_n_dfrble_mask) {
			if ((rv = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0))
			                                                                    != inst_ok) {
				printf("\nCalibration failed with error :'%s' (%s)\n",
	       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
				it->del(it);
				return -1;
			}
		}

		/* Enable switch or user via uicallback trigger if possible */
		if (cap2 & inst2_user_switch_trig) {
			rv = it->get_set_opt(it, inst_opt_trig_user_switch);
			uswitch = 2;

		/* Or use just switch trigger */
		} else if (cap2 & inst2_switch_trig) {
			rv = it->get_set_opt(it, inst_opt_trig_switch);
			uswitch = 1;

		/* Or go for user vi uicallback trigger */
		} else if (cap2 & inst2_user_trig) {
			rv = it->get_set_opt(it, inst_opt_trig_user);

		/* Or something is wrong with instrument capabilities */
		} else {
			printf("\nNo reasonable trigger mode avilable for this instrument\n");
			it->del(it);
			return -1;
		}
		if (rv != inst_ok) {
			printf("\nSetting trigger mode failed with error :'%s' (%s)\n",
	       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
			it->del(it);
			return -1;
		}

		/* Set so that return or any other key triggers, */
		/* but retain our abort keys */
		inst_set_uih(0x00, 0xff, DUIH_TRIG);
		inst_set_uih('f', 'f',   DUIH_CMND);
		inst_set_uih('F', 'F',   DUIH_CMND);
		inst_set_uih('b', 'b',   DUIH_CMND);
		inst_set_uih('B', 'B',   DUIH_CMND);
		inst_set_uih('n', 'n',   DUIH_CMND);
		inst_set_uih('N', 'N',   DUIH_CMND);
		inst_set_uih('g', 'g',   DUIH_CMND);
		inst_set_uih('G', 'G',   DUIH_CMND);
		inst_set_uih('d', 'd',   DUIH_CMND);
		inst_set_uih('D', 'D',   DUIH_CMND);
		inst_set_uih('q', 'q',   DUIH_ABORT);
		inst_set_uih('Q', 'Q',   DUIH_ABORT);
		inst_set_uih(0x03, 0x03, DUIH_ABORT);		/* ^c */
		inst_set_uih(0x1b, 0x1b, DUIH_ABORT);		/* Esc */

		/* Allocate space for values from a pass/strip */
		if ((vals = (ipatch *)calloc(sizeof(ipatch), (stipa+nextrap))) == NULL)
			error("Malloc failed!");

		/* Until we're done reading rows */
		incflag = 0;

		/* Skip to next unread if first has been read */
		if (pis[0] != 0 && scols[0]->rr != 0)
			incflag = 2;

		for (oroi = stix = pai = 0;pis[0] != 0;) {
			char *nn = NULL;	/* Pass name */
			int guide;
			chcol **scb;
			int boff = 0;			/* Best offset */
			int bdir = 0;			/* Best overall direction */
			int done = 0;			/* nz if there are no unread rows */

//printf("\n~1 incflag = %d, oroi %d, pai %d, stix %d\n", incflag, oroi, pai, stix);

			/* Increment or decrement to the next row */
			if (incflag > 0) {
				int s_oroi = oroi;

				/* Until we get to an unread pass */
				for (;;) {
					oroi++;
					if (++pai >= pis[stix]) {		/* Carry */
						if (pis[++stix] == 0) {		/* Carry */
							stix = 0;
							oroi = 0;
						}
						pai = 0;
					}
//printf("~1 stix = %d, pis[stix] = %d, oroi = %d, rr %d\n",stix, pis[stix],oroi,scols[oroi * stipa]->rr);
					// Note we aren't protecting agains a bodgy pis[] value
					if (incflag == 1 || scols[oroi * stipa]->rr == 0 || oroi == s_oroi)
						break;
				}

			/* Decrement the row */
			} else if (incflag < 0) {
				oroi--;
				if (--pai < 0) {			/* Carry */
					if (--stix < 0) {		/* Carry */
						for (oroi = stix = 0; pis[stix] != 0; stix++) {
							oroi += pis[stix];
						}
						stix--;
						oroi--;
					}
					pai = pis[stix]-1;
				}
			}
			incflag = 0;

			/* See if there are any unread patches */
			for (done = i = 0; i < npat; i += stipa) {
				if (scols[i]->rr == 0)
					break;					/* At least one patch read */
			}
			if (i >= npat)
				done = 1;
			
//printf("~1 oroi %d, pai %d, stix %d pis[stix] %d, rr = %d\n", oroi, pai, stix, pis[stix],scols[oroi * stipa]->rr);
			/* Convert overall pass number index into alpha label */
			if (nn != NULL)
				free(nn);
			nn = paix->aix(paix, oroi);

			guide = (pis[stix] - pai) * 5;		/* Mechanical guide offset */

			for (;;) {	/* Until we give up reading this row */

				/* Read a strip pass */
				printf("\nReady to read strip pass %s%s\n",nn, done ? " (!! ALL ROWS READ !!)" : scols[oroi *stipa]->rr ? " (This row has been read)" : "" );
				printf("Press 'f' to move forward, 'b' to move back, 'n' for next unread,\n");
				printf(" 'd' when done, Esc or 'q' to quit without saving.\n");
				
				if (uswitch == 1) {
					printf("Trigger instrument switch to start reading,");
				} else if (uswitch == 2) {
					printf("Trigger instrument switch or any other key to start:");
				} else {
					printf("Press any other key to start:");
				}
				fflush(stdout);
				if ((rv = it->read_strip(it, "STRIP", stipa+nextrap, nn, guide, plen, glen, tlen, vals)) != inst_ok
				 && (rv & inst_mask) != inst_user_trig) {

#ifdef DEBUG
					printf("read_strip returned '%s' (%s)\n",
				       it->inst_interp_error(it, rv), it->interp_error(it, rv));
#endif /* DEBUG */
					/* Deal with user abort or command */
					if ((rv & inst_mask) == inst_user_abort) {
						int keyc = inst_get_uih_char();

						/* Deal with a command */
						if (keyc & DUIH_CMND) {
							ch = keyc & 0xff;

							printf("\n");
							if (ch == 'f' || ch == 'F') {
								incflag = 1;
								break;
							} else if (ch == 'b' || ch == 'B') {
								incflag = -1;
								break;
							} else if (ch == 'n' || ch == 'N') {
								incflag = 2;
								break;
							} else {	/* Assume 'd' or 'D' */

								/* See if there are any unread patches */
								for (done = i = 0; i < npat; i += stipa) {
									if (scols[i]->rr == 0)
										break;					/* At least one patch read */
								}
								if (i >= npat)
									done = 1;
				
								if (done) {
									incflag = -2;
									break;
								}

								/* Not all rows have been read */
								empty_con_chars();
								printf("\nDone ? - At least one unread patch (%s, %s), Are you sure [y/n]: ",
								       scols[i]->id, scols[i]->loc);
								fflush(stdout);
								ch = next_con_char();
								printf("\n");
								if (ch == 'y' || ch == 'Y') {
									incflag = -2;
									break;
								}
								continue;
							}

						/* Deal with a user abort */
						} else if (keyc & DUIH_ABORT) {
							empty_con_chars();
							printf("\n\nStrip read stopped at user request!\n");
							printf("Hit Esc or 'q' to give up, any other key to retry:"); fflush(stdout);
							if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
								printf("\n");
								it->del(it);
								return -1;
							}
							printf("\n");
							continue;
						}

					/* Deal with needs calibration */
					} else if ((rv & inst_mask) == inst_needs_cal) {
						inst_code ev;

						if (cap2 & inst2_no_feedback)
							bad_beep();
						printf("\nStrip read failed because instruments needs calibration\n");
						ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0);
						if (ev != inst_ok) {	/* Abort or fatal error */
							it->del(it);
							return -1;
						}
						continue;

					/* Deal with a bad sensor position */
					} else if ((rv & inst_mask) == inst_wrong_config) {
						printf("\n\nSpot read failed due to the sensor being in the wrong position\n(%s)\n",it->interp_error(it, rv));
						continue;

					/* Deal with a misread */
					} else if ((rv & inst_mask) == inst_misread) {
						if (cap2 & inst2_no_feedback)
							bad_beep();
						empty_con_chars();
						printf("\nStrip read failed due to misread (%s)\n",it->interp_error(it, rv));
						printf("Hit Esc to give up, any other key to retry:"); fflush(stdout);
						if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
							printf("\n");
							it->del(it);
							return -1;
						}
						printf("\n");
						continue;
					/* Deal with a communications error */
					} else if ((rv & inst_mask) == inst_coms_fail) {
						if (cap2 & inst2_no_feedback)
							bad_beep();
						empty_con_chars();
						printf("\nStrip read failed due to communication problem.\n");
						printf("Hit Esc or 'q' to give up, any other key to retry:"); fflush(stdout);
						if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
							printf("\n");
							it->del(it);
							return -1;
						}
						printf("\n");
						if ((it->icom->port_type(it->icom) & icomt_serial)
						 && !(it->icom->port_attr(it->icom) & icomt_fastserial)) {
							/* Allow retrying at a lower baud rate */
							int tt = it->last_scomerr(it);
							if (tt & (ICOM_BRK | ICOM_FER | ICOM_PER | ICOM_OER)) {
								if (br == baud_57600) br = baud_38400;
								else if (br == baud_38400) br = baud_9600;
								else if (br == baud_9600) br = baud_4800;
								else if (br == baud_9600) br = baud_4800;
								else if (br == baud_2400) br = baud_1200;
								else br = baud_1200;
							}
							if ((rv = it->init_coms(it, br, fc, 15.0)) != inst_ok) {
#ifdef DEBUG
								printf("init_coms returned '%s' (%s)\n",
							       it->inst_interp_error(it, rv), it->interp_error(it, rv));
#endif /* DEBUG */
								it->del(it);
								return -1;
							}
						}
						continue;
					} else {
						/* Some other error. Treat it as fatal */
						if (cap2 & inst2_no_feedback)
							bad_beep();
						printf("\nStrip read failed due unexpected error :'%s' (%s)\n",
				       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
						printf("Hit Esc or 'q' to give up, any other key to retry:"); fflush(stdout);
						if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
							printf("\n");
							it->del(it);
							return -1;
						}
						printf("\n");
						continue;
					}

				/* Successfully read the strip */
				/* See which expected row best correlates with the one we've read. */
				/* Figure out if there is an "off by one" error for a DTP51 */
				} else {
					int choroi;				/* Check overall row index */
					double corr;			/* Correlation with expected value */
					int loff = 0, hoff = 0;	/* DTP51 offset test range */
					int toff;				/* Test offset */
					int dir, dirrg = 1;		/* Direction range, 1 = forward, 2 = fwd & bwd */

					int boroi = -1;			/* Best overall row index */

					double bcorr = 1e6;		/* Best correlation value */
					double werror = 0.0;	/* Worst case error in best correlation strip */

					double xbcorr = 1e6;	/* Expected pass correlation value */
					int xboff;				/* Expected pass best offset */
					int xbdir;				/* Expected pass overall pass direction */
					double xwerror = 0.0;	/* Expected pass worst patcch error */

					if (rand && disbidi == 0 && (cap2 & inst2_bidi_scan))
						dirrg = 2;			/* Enable bi-directional strip recognition */

					/* DTP51 has a nasty habit of misaligning test squares by +/- 1 */
					/* See if this might have happened */
					if (it->dtype == instDTP51) {
						loff = -1;
						hoff = 1;
					}

					for (choroi = 0; choroi < totpa; choroi++) {
						/* Explore strip direction */
						for (dir = 0; dir < dirrg; dir++) {
							double pwerr;	/* This rows worst error */
							scb = &scols[choroi * stipa];

							/* Explore off by +/-1 error for DTP51 */
							for (toff = loff; toff <= hoff; toff++) {
								double ynorm = 1.0;

								/* Compute a Y scaling value to give correlation */
								/* a chance for absolute readings */
								if (vals[skipp+toff].XYZ_v != 0) {
									double refnorm = 0.0;
									ynorm = 0.0;
									for (i = 0; i < stipa; i++) {
										int ix = i+skipp+toff;
										if (dir != 0)
											ix = stipa - 1 - ix;
										refnorm += scb[i]->eXYZ[1];
										ynorm += vals[ix].XYZ[1];
									}
									ynorm = refnorm/ynorm;
								}

								/* Compare just sample patches (not padding Max/Min) */
#ifdef USESTRDELTA
								for (pwerr = corr = 0.0, n = 0, i = 0; i < (stipa-1); i++, n++)
#else
								for (pwerr = corr = 0.0, n = 0, i = 0; i < stipa; i++, n++)
#endif
								{
									double vcorr;
									int ix = i+skipp+toff, ix1 = ix+1;
									if (dir != 0) {
										ix = stipa - 1 - ix;
										ix1 = stipa - 1 - ix1;
									}
									if (vals[ix].XYZ_v == 0)
										error("Instrument didn't return XYZ value");
#ifdef USESTRDELTA
									vcorr = xyzLabcorr(vals[ix].XYZ, scb[i]->eXYZ,
									                   vals[ix1].XYZ, scb[i+1]->eXYZ);
#else
									vcorr = xyzLabDE(ynorm, vals[ix].XYZ, scb[i]->eXYZ);
#endif
//printf("DE %f from vals[%d] %f %f %f and scols[%d] %f %f %f\n", vcorr, ix, vals[ix].XYZ[0], vals[ix].XYZ[1], vals[ix].XYZ[2], i + choroi * stipa, scb[i]->eXYZ[0], scb[i]->eXYZ[1], scb[i]->eXYZ[2]);
									corr += vcorr;
									if (vcorr > pwerr)	/* Worsed patch error */
										pwerr = vcorr;
								}
								corr /= (double)n;
#ifdef DEBUG
								printf("  Strip %d dir %d offset %d correlation = %f\n",choroi,dir,toff,corr);

#endif
								/* If this is the expected strip, */
								/* note correlation and best fit to off by 1 and direction */
								if (choroi == oroi && corr < xbcorr) { 
									xbcorr = corr;		/* Expected strip correlation */
									xboff = toff;
									xbdir = dir;
									xwerror = pwerr;	/* Expected passes worst error */
								}

								/* Best overall matched strip correlation */
								if (corr < bcorr) {
									boroi = choroi;
									bcorr = corr;
									boff = toff;
									bdir = dir;
									werror = pwerr;
								}
							}
						}
					}
					if (emit_warnings != 0 && rand && boroi != oroi) {	/* Looks like the wrong strip */
						char *mm = NULL;
						mm = paix->aix(paix, boroi);
#ifdef DEBUG
						printf("Strip pass %s (%d) seems to have a better correlation that strip %s (%d)\n",
						mm, boroi, nn, oroi);
#endif
						if (cap2 & inst2_no_feedback)
							bad_beep();
						empty_con_chars();
						printf("\n(Warning) Seem to have read strip pass %s rather than %s!\n",mm,nn);
						printf("Hit Return to use it anyway, any other key to retry, Esc or 'q' to give up:"); fflush(stdout);
						free(mm);
						if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
							printf("\n");
							it->del(it);
							return -1;
						}
						if (ch != 0x0d && ch != 0x0a) { 			/* !(CR or LF) */
							printf("\n");
							continue;		/* Try again */
						}
						printf("\n");

						/* Switch to state for expected strip */
						bcorr = xbcorr;
						boff = xboff;
						bdir = xbdir;
						werror = xwerror;
					}
					/* Arbitrary threshold. Good seems about 15-35, bad 95-130 */
					if (emit_warnings != 0 && accurate_expd != 0 && werror >= 30.0) {
#ifdef DEBUG
						printf("(Warning) Patch error %f (>35 not good, >95 bad)\n",werror);
#endif
						if (cap2 & inst2_no_feedback)
							bad_beep();
						empty_con_chars();
						printf("\nThere is at least one patch with an very unexpected response! (DeltaE %f)\n",werror);
						printf("Hit Return to use it anyway, any other key to retry, Esc or  'q' to give up:"); fflush(stdout);
						if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
							printf("\n");
							it->del(it);
							return -1;
						}
						if (ch != 0x0d && ch != 0x0a) { 			/* !Cr */
							printf("\n");
							continue;
						}
						printf("\n");
						break;
					}

					/* Must be OK - save the readings */
					if (cap2 & inst2_no_feedback)
						good_beep();
					printf(" Strip read OK");
					if (boff != 0)
						printf(" (DTP51 offset fix of %d applied)",boff);
					if (bdir != 0)
						printf(" (Strip read in reverse direction)");
					printf("\n");
					break;		/* Break out of retry loop */
				}
			}

			if (nn != NULL)		/* Finished with strip alpha index */
				free(nn);
			nn = NULL;

			/* If we're done */
			if (incflag == -2)
				break;

			/* If we are moving row, rather than having read one. */
			if (incflag != 0)
				continue;

			/* Transfer the values (including DTP51 offset) */
			scb = &scols[oroi * stipa];
			for (n = 0, i = 0; i < stipa; i++, n++) {
				int ix = i+skipp+boff;
				if (bdir != 0)
					ix = stipa - 1 - ix;

				/* Copy XYZ */
				if (vals[ix].XYZ_v == 0)
					error("Instrument didn't return XYZ value");
				for (j = 0; j < 3; j++)
					scb[i]->XYZ[j] = vals[ix].XYZ[j];

				/* Copy spectral */
				if (vals[ix].sp.spec_n > 0) {
					scb[i]->sp = vals[ix].sp;
				}
				scb[i]->rr = 1;		/* Has been read */
			}
			incflag = 2;		/* Skip to next unread */
		}		/* Go around to read another row */
		free(vals);

	/* -------------------------------------------------- */
	/* Spot mode. This will be used if xtern != 0 */
	} else {
		int pix = 0;
		int uswitch = 0;		/* nz if switch can be used */
		int incflag = 0;		/* 0 = no change, 1 = increment, 2 = inc by 10, */
								/* 3 = inc next unread, -1 = decrement, -2 = dec by 10 */
								/* 4 = goto specific patch */
		inst_opt_type omode;	/* The option mode used */
		ipatch val;

		if (xtern == 0) {	/* Instrument patch by patch */

			/* Do any needed calibration before the user places the instrument on a desired spot */
			if (it->needs_calibration(it) & inst_calt_n_dfrble_mask) {
				if ((rv = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0))
				                                                                    != inst_ok) {
					printf("\nCalibration failed with error :'%s' (%s)\n",
		       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
					it->del(it);
					return -1;
				}
			}
	
			/* Enable switch or user via uicallback trigger if possible */
			if (cap2 & inst2_user_switch_trig) {
				omode = inst_opt_trig_user_switch;
				rv = it->get_set_opt(it, omode);
				uswitch = 1;
	
			/* Or go for user via uicallback trigger */
			} else if (cap2 & inst2_user_trig) {
				omode = inst_opt_trig_user;
				rv = it->get_set_opt(it, omode);
	
			/* Or something is wrong with instrument capabilities */
			} else {
				printf("\nNo reasonable trigger mode avilable for this instrument\n");
				it->del(it);
				return -1;
			}
			if (rv != inst_ok) {
				printf("\nSetting trigger mode failed with error :'%s' (%s)\n",
		       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
				it->del(it);
				return -1;
			}

			/* Setup the keyboard trigger to return our commands */
			inst_set_uih('f', 'f', DUIH_CMND);
			inst_set_uih('F', 'F', DUIH_CMND);
			inst_set_uih('b', 'b', DUIH_CMND);
			inst_set_uih('B', 'B', DUIH_CMND);
			inst_set_uih('n', 'n', DUIH_CMND);
			inst_set_uih('N', 'N', DUIH_CMND);
			inst_set_uih('g', 'g', DUIH_CMND);
			inst_set_uih('G', 'G', DUIH_CMND);
			inst_set_uih('d', 'd', DUIH_CMND);
			inst_set_uih('D', 'D', DUIH_CMND);
			inst_set_uih('k', 'k',   DUIH_CMND);
			inst_set_uih('q', 'q', DUIH_ABORT);
			inst_set_uih('Q', 'Q', DUIH_ABORT);
			inst_set_uih(0xd, 0xd, DUIH_TRIG);	/* Return */
			inst_set_uih(' ', ' ', DUIH_TRIG);
		}

		/* Skip to next unread if first has been read */
		/* !!! would be nice to skip padding patches !!! */
		incflag = 0;
		if (npat > 0 && scols[0]->rr != 0)
			incflag = 3;

		/* Until we're  done */
		for (;pix < npat;) {
			char buf[200], *bp = NULL, *ep = NULL;
			char ch = 0;

			/* Adjust the location */
			if (incflag > 0 && incflag <= 2) {	/* Incremente by 1 or 10 */

				if (incflag == 2)
					pix += 10;
				else
					pix++;
				pix = pix % npat;

			} else if (incflag < 0 && incflag >= -2) {	/* Decrement by 1 or 10 */

				if (incflag == -2)
					pix -= 10;
				else
					pix--;
				pix = pix % npat;
				if (pix < 0)
					pix += npat;

			} else if (incflag == 3) {		/* Increment to next unread */
				int opix = pix;

				if (pix >= npat)
					pix = 0;
				for (;;) {
					if (scols[pix]->rr == 0 && strcmp(scols[pix]->id, "0") != 0)
						break;
					pix++;
					if (pix >= npat)
						pix = 0;
					if (pix == opix)
						break;
				}
			} else if (incflag == 4) {		/* Goto specific patch */
				printf("\nEnter patch to go to: "); fflush(stdout);

				/* Read in the next line from stdin. */
				if (fgets(buf, 200, stdin) == NULL) {
					printf("Error - unrecognised input\n");
				} else {
					int opix = pix;

					/* Skip whitespace */
					for (bp = buf; *bp != '\000' && isspace(*bp); bp++)
						;

					/* Skip non-whitespace */
					for (ep = bp; *ep != '\000' && !isspace(*ep); ep++)
						;
					*ep = '\000';
				
					if (pix >= npat)
						pix = 0;
					for (;;) {
						if (stricmp(scols[pix]->loc, bp) == 0)
							break;
						pix++;
						if (pix >= npat)
							pix = 0;
						if (pix == opix) {
							printf("Patch '%s' not found\n",bp);
							break;
						}
					}
				}
			}
			incflag = 0;

			/* See if there are any unread patches */
			for (i = 0; i < npat; i++) {
				if (scols[i]->rr == 0 && strcmp(scols[i]->id, "0") != 0)
					break;					/* At least one patch read */
			}

			if (xtern != 0) {	/* User entered values */
				printf("\nReady to read patch '%s' at '%s'%s\n",scols[pix]->id, scols[pix]->loc,
				       i >= npat ? "(All patches read!)" :
				       strcmp(scols[pix]->id, "0") == 0 ? " (Padding Patch)" :
				       scols[pix]->rr ? " (Already read)" : "");
				printf("Enter %s value (separated by spaces), or\n",
				       xtern == 1 ? "L*a*b*" : "XYZ");
				printf("  'f' to move forward, 'F' move forward 10,\n");
				printf("  'b' to move back, 'B; to move back 10,\n");
				printf("  'n' for next unread, 'g' to goto patch,\n");
				printf("  'd' when done, 'q' to abort, then press <return>: ");
				fflush(stdout);
	
				/* Read in the next line from stdin. */
				if (fgets(buf, 200, stdin) == NULL) {
					printf("Error - unrecognised input\n");
					continue;
				}
				/* Skip whitespace */
				for (bp = buf; *bp != '\000' && isspace(*bp); bp++)
					;

				ch = *bp;
				if (ch == '\000') {
					printf("Error - unrecognised input\n");
					continue;
				}

			} else {	/* Using instrument */

				empty_con_chars();

				printf("\nReady to read patch '%s' at '%s'%s\n",scols[pix]->id, scols[pix]->loc,
				       i >= npat ? " (All patches read!)" :
				       strcmp(scols[pix]->id, "0") == 0 ? " (Padding Patch)" :
				       scols[pix]->rr ? " (Already read)" : "");

				printf("hit 'f' to move forward, 'F' move forward 10,\n");
				printf("    'b' to move back,    'B; to move back 10,\n");
				printf("    'n' for next unread, 'g' to goto patch,\n");
				printf("    'd' when done,       'k' to calibrate, <esc> to abort,\n");

				if (uswitch)
					printf("    Instrument switch,   <return> or <space> to read:");
				else
					printf("    <return> or <space> to read:");
				fflush(stdout);

				rv = it->read_sample(it, "SPOT", &val, 1);

				/* Deal with reading */
				if (rv == inst_ok) {
					/* Read OK */
					if (cap2 & inst2_no_feedback)
						good_beep();
					ch = '0';

				/* Deal with user trigger via user interface callback function */
				} else if ((rv & inst_mask) == inst_user_trig) {
					if (cap2 & inst2_no_feedback)
						good_beep();
					ch = inst_get_uih_char();

				/* Deal with a abort or command */
				} else if ((rv & inst_mask) == inst_user_abort) {
					int keyc = inst_get_uih_char();

					/* User issued a command */
					if (keyc & DUIH_CMND) {
						ch = keyc & 0xff;
						printf("\n");

					/* User aborted */
					} else if (keyc & DUIH_ABORT) {
						empty_con_chars();
						printf("\n\nSpot read stopped at user request!\n");
						printf("Hit Esc or 'q' to give up, any other key to retry:"); fflush(stdout);
						if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
							printf("\n");
							it->del(it);
							return -1;
						}
						printf("\n");
						continue;
					}

				/* Deal with needs calibration */
				} else if ((rv & inst_mask) == inst_needs_cal) {
					inst_code ev;

					if (cap2 & inst2_no_feedback)
						bad_beep();
					printf("\nSpot read failed because instruments needs calibration\n");
					ev = inst_handle_calibrate(it, inst_calt_needed, inst_calc_none, NULL, NULL, 0);
					if (ev != inst_ok) {	/* Abort or fatal error */
						it->del(it);
						return -1;
					}
					continue;
				/* Deal with a misread */
				} else if ((rv & inst_mask) == inst_misread) {
					if (cap2 & inst2_no_feedback)
						bad_beep();
					empty_con_chars();
					printf("\nStrip read failed due to misread (%s)\n",it->interp_error(it, rv));
					printf("Hit Esc or 'q' to give up, any other key to retry:"); fflush(stdout);
					if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
						printf("\n");
						it->del(it);
						return -1;
					}
					printf("\n");
					continue;
				/* Deal with a communications error */
				} else if ((rv & inst_mask) == inst_coms_fail) {
					if (cap2 & inst2_no_feedback)
						bad_beep();
					empty_con_chars();
					printf("\nStrip read failed due to communication problem.\n");
					printf("Hit Esc or 'q' to give up, any other key to retry:"); fflush(stdout);
					if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
						printf("\n");
						it->del(it);
						return -1;
					}
					printf("\n");
					if ((it->icom->port_type(it->icom) & icomt_serial)
					 && !(it->icom->port_attr(it->icom) & icomt_fastserial)) {
						/* Allow retrying at a lower baud rate */
						int tt = it->last_scomerr(it);
						if (tt & (ICOM_BRK | ICOM_FER | ICOM_PER | ICOM_OER)) {
							if (br == baud_57600) br = baud_38400;
							else if (br == baud_38400) br = baud_9600;
							else if (br == baud_9600) br = baud_4800;
							else if (br == baud_9600) br = baud_4800;
							else if (br == baud_2400) br = baud_1200;
							else br = baud_1200;
						}
						if ((rv = it->init_coms(it, br, fc, 15.0)) != inst_ok) {
#ifdef DEBUG
							printf("init_coms returned '%s' (%s)\n",
						       it->inst_interp_error(it, rv), it->interp_error(it, rv));
#endif /* DEBUG */
							it->del(it);
							return -1;
						}
					}
					continue;


				} else {
					/* Some other error. Treat it as fatal */
					if (cap2 & inst2_no_feedback)
						bad_beep();
					printf("\nPatch read failed due unexpected error :'%s' (%s)\n",
			       	       it->inst_interp_error(it, rv), it->interp_error(it, rv));
					printf("Hit Esc or 'q' to give up, any other key to retry:"); fflush(stdout);
					if ((ch = next_con_char()) == 0x1b || ch == 0x3 || ch == 'q' || ch == 'Q') {
						printf("\n");
						it->del(it);
						return -1;
					}
					printf("\n");
					continue;
				}
			}
	
			if (ch == 'q' || ch == 0x1b || ch == 0x03) {	/* q or Esc or ^C */
				empty_con_chars();
				printf("\nAbort ? - Are you sure ? [y/n]:"); fflush(stdout);
				if ((ch = next_con_char()) == 'y' || ch == 'Y') {
					printf("\n");
					it->del(it);
					return -1;
				}
				printf("\n");
				continue;
			} else if (ch == 'k') {
				inst_code ev;

				ev = inst_handle_calibrate(it, inst_calt_available, inst_calc_none, NULL, NULL, 0);
				if (ev != inst_ok) {	/* Abort or fatal error */
					it->del(it);
					return -1;
				}
				continue;
			} else if (ch == 'f') {
				incflag = 1;
				continue;
			} else if (ch == 'F') {
				incflag = 2;
				continue;
			} else if (ch == 'b') {
				incflag = -1;
				continue;
			} else if (ch == 'B') {
				incflag = -2;
				continue;
			} else if (ch == 'n' || ch == 'N') {
				incflag = 3;
				continue;
			} else if (ch == 'g' || ch == 'G') {
				incflag = 4;
				continue;
			} else if (ch == 'd' || ch == 'D') {
				int i;
				for (i = 0; i < npat; i++) {
					if (scols[i]->rr == 0 && strcmp(scols[i]->id, "0") != 0)
						break;
				}
				if (i >= npat)
					break;			/* None unread, so done */

				/* Not all patches have been read */
				empty_con_chars();
				printf("\nDone ? - At least one unread patch (%s, %s), Are you sure [y/n]: ",
				       scols[i]->id, scols[i]->loc);
				fflush(stdout);
				if ((ch = next_con_char()) == 0x1b) {
					printf("\n");
					it->del(it);
					return -1;
				}
				printf("\n");
				if (ch == 'y' || ch == 'Y')
					break;
				continue;

			/* Read the external sample */
	        } else if (xtern != 0 && (isdigit(*bp) || ch == '-' || ch == '+' || ch == '.')) {
				int i;

				/* For each input number */
				for (i = 0; *bp != '\000' && i < 3; i++) {
					char *tp, *nbp;

					/* Find the start of the number */
					while(*bp != '\000' && !isdigit(*bp)
					      && *bp != '-' && *bp != '+' && *bp != '.')
						bp++;
					if (!isdigit(*bp) && *bp != '-' && *bp != '+' && *bp != '.')
						break;

					/* Find the end of the number */
					for (tp = bp+1; isdigit(*tp) || *tp == 'e' || *tp == 'E'
					                || *tp == '-' || *tp == '+' || *tp == '.'; tp++)
						;
					if (*tp != '\000')
						nbp = tp+1;
					else
						nbp = tp;
					*tp = '\000';

					/* Read the number */
					scols[pix]->XYZ[i] = atof(bp);

					bp = nbp;
				}
				if (i < 3) {	/* Didn't find 3 numbers */
					printf("Error - unrecognised input\n");
					continue;
				}
				if (xtern == 1) {
					icmLab2XYZ(&icmD50, scols[pix]->XYZ,scols[pix]->XYZ);
					scols[pix]->XYZ[0] *= 100.0;
					scols[pix]->XYZ[1] *= 100.0;
					scols[pix]->XYZ[2] *= 100.0;
				}

				scols[pix]->rr = 1;		/* Has been read */
				printf(" Got XYZ value %f %f %f\n",scols[pix]->XYZ[0], scols[pix]->XYZ[1], scols[pix]->XYZ[2]);

				/* Advance to next patch. */
				incflag = 1;
				
			/* We've read the spot sample */
			} else if (xtern == 0 && (ch == '0' || ch == ' ' || ch == '\r')) {	

				/* Save the reading */
				if (val.XYZ_v == 0)
					error("Instrument didn't return XYZ value");

				for (j = 0; j < 3; j++)
					scols[pix]->XYZ[j] = val.XYZ[j];

				/* Copy spectral */
				if (val.sp.spec_n > 0) {
					scols[pix]->sp = val.sp;
				}
				scols[pix]->rr = 1;		/* Has been read */
				printf(" Patch read OK\n");

				if (doplot && val.sp.spec_n > 0)
					xspect_plot_w(&val.sp, NULL, NULL, 0);

				/* Advance to next patch. */
				incflag = 1;
			} else {	/* Unrecognised response */
				continue;
			}
		}
	}
	/* clean up */
	if (it != NULL)
		it->del(it);
	return 0;
}

void
usage() {
	icompaths *icmps;
	inst2_capability cap2 = 0;
	fprintf(stderr,"Read Target Test Chart, Version %s\n",ARGYLL_VERSION_STR);
	fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n");
	fprintf(stderr,"usage: chartread [-options] outfile\n");
	fprintf(stderr," -v             Verbose mode\n");
	fprintf(stderr," -c listno      Set communication port from the following list (default %d)\n",COMPORT);
	if ((icmps = new_icompaths(g_log)) != NULL) {
		icompath **paths;
		if ((paths = icmps->paths) != NULL) {
			int i;
			for (i = 0; ; i++) {
				if (paths[i] == NULL)
					break;
				fprintf(stderr,"    %d = '%s'\n",i+1,paths[i]->name);
			}
		} else
			fprintf(stderr,"    ** No ports found **\n");
	}
	fprintf(stderr," -t              Use transmission measurement mode\n");
	fprintf(stderr," -d              Use display measurement mode (white Y relative results)\n");
	cap2 = inst_show_disptype_options(stderr, " -y              ", icmps, 0);
	fprintf(stderr," -e              Emissive for transparency on a light box\n");
	fprintf(stderr," -p              Measure patch by patch rather than strip\n");
	fprintf(stderr," -x [lx]         Take external values, either L*a*b* (-xl) or XYZ (-xx).\n");
	fprintf(stderr," -n              Don't save spectral information (default saves spectral)\n");
	fprintf(stderr," -l              Save CIE as D50 L*a*b* rather than XYZ\n");
	fprintf(stderr," -L              Save CIE as D50 L*a*b* as well as XYZ\n");
	fprintf(stderr," -r              Resume reading partly read chart\n");
	fprintf(stderr," -I file.cal     Override calibration info from .ti2 in resulting .ti3\n");
	fprintf(stderr," -F filter       Set filter configuration (if aplicable):\n");
	fprintf(stderr,"    n             None\n");
	fprintf(stderr,"    p             Polarising filter\n");
	fprintf(stderr,"    6             D65\n");
	fprintf(stderr,"    u             U.V. Cut\n");
	fprintf(stderr," -A N|A|X|G      XRGA conversion (default N)\n");
	fprintf(stderr," -N              Disable initial calibration of instrument if possible\n");
	fprintf(stderr," -B              Disable auto bi-directional strip recognition\n");
	fprintf(stderr," -H              Use high resolution spectrum mode (if available)\n");
	if (cap2 & inst2_ccmx)
		fprintf(stderr," -X file.ccmx    Apply Colorimeter Correction Matrix\n");
	if (cap2 & inst2_ccss) {
		int i;
		fprintf(stderr," -X file.ccss    Use Colorimeter Calibration Spectral Samples for calibration\n");
		fprintf(stderr," -Q observ       Choose CIE Observer for CCSS instrument:\n");
#ifdef SALONEINSTLIB
		fprintf(stderr,"                  1931_2 (def), 1964_10, 2012_2, 2012_10\n");
#else /* !SALONEINSTLIB */
		fprintf(stderr,"                  1931_2 (def), 1964_10, 2012_2, 2012_10, S&B 1955_2, shaw, J&V 1978_2 or file.cmf\n");
#endif /* !SALONEINSTLIB */
	}
	fprintf(stderr," -T ratio        Modify strip patch consistency tolerance by ratio\n");
	fprintf(stderr," -S              Suppress wrong strip & unexpected value warnings\n");
//	fprintf(stderr," -Y U                 Test i1pro2 UV measurement mode\n");
	fprintf(stderr," -W n|h|x        Override serial port flow control: n = none, h = HW, x = Xon/Xoff\n");
#ifndef SALONEINSTLIB
	fprintf(stderr," -P              Plot spectral if patch by patch\n");
#endif
	fprintf(stderr," -D [level]      Print debug diagnostics to stderr\n");
	fprintf(stderr," outfile         Base name for input[ti2]/output[ti3] file\n");
	if (icmps != NULL)
		icmps->del(icmps);
	exit(1);
}

int main(int argc, char *argv[]) {
	int i, j;
	int fa, nfa, mfa;				/* current argument we're looking at */
	int verb = 0;
	int debug = 0;
	int comport = COMPORT;			/* COM port used */
	icompaths *icmps = NULL;
	icompath *ipath = NULL;
	flow_control fc = fc_nc;		/* Default flow control */
	instType itype = instUnknown;	/* Instrument chart is targeted to */
	instType atype = instUnknown;	/* Instrument used to read the chart */
	int trans = 0;					/* Use transmission mode */
	int emis = 0;					/* Use emissive mode */
	int displ = 0;					/* 1 = Use display emissive mode, 2 = display bright rel. */
	                                /* 3 = display white rel. */
	int ditype = 0;					/* Display type selection charater(s) */
	inst_opt_filter fe = inst_opt_filter_unknown;
	int pbypatch = 0;				/* Read patch by patch */
	int disbidi = 0;				/* Disable bi-directional strip recognition */
	int highres = 0;				/* Use high res mode if available */
	double scan_tol = 1.0;			/* Patch consistency tolerance modification */
	int xtern = 0;					/* Take external values, 1 = Lab, 2 = XYZ */
	int spectral = 1;				/* Save spectral information */
	int uvmode = 0;					/* ~~~ i1pro2 test mode ~~~ */
	xcalstd scalstd = xcalstd_none;	/* X-Rite calibration standard to set */
	xcalstd ucalstd = xcalstd_none;	/* X-Rite calibration standard actually used */
	int accurate_expd = 0;			/* Expected value assumed to be accurate */
	int emit_warnings = 1;			/* Emit warnings for wrong strip, unexpected value */
	int dolab = 0;					/* 1 = Save CIE as Lab, 2 = Save CIE as XYZ and Lab */
	int doresume = 0;				/* Resume reading a chart */
	int nocal = 0;					/* Disable initial calibration */
	int doplot = 0;					/* Plot spectral of patch by patch */
	char ccxxname[MAXNAMEL+1] = "\000";  /* Colorimeter Correction/Colorimeter Calibration name */
	icxObserverType obType = icxOT_default;		/* ccss observer */
	xspect custObserver[3];			/* If obType = icxOT_custom */
	static char inname[MAXNAMEL+1] = { 0 };	/* Input cgats file base name */
	static char outname[MAXNAMEL+1] = { 0 };	/* Output cgats file base name */
	cgats *icg;					/* input cgats structure */
	cgats *ocg;					/* output cgats structure */
	static char calname[MAXNAMEL+1] = { 0 };	/* User supplied calibration filename */
	xcal *cal = NULL;			/* Any calibration to be output as well */
	int nmask = 0;				/* Device colorant mask */
	char *pixpat = "A-Z, A-Z";			/* Pass index pattern */		
	char *sixpat = "0-9,@-9,@-9;1-999";	/* Step index pattern */		
	alphix *paix, *saix;		/* Pass and Step index generators */
	int ixord = 0;				/* Index order, 0 = pass then step */
	int rstart = 0;				/* Random start/chart id */
	int rand = 0;				/* Random patch order, - can use auto strip ID and Bi-Di */
	int hex = 0;				/* Hexagon pattern layout */
	time_t clk = time(0);
	struct tm *tsp = localtime(&clk);
	char *atm = asctime(tsp); /* Ascii time */
	chcol *cols;				/* Internal storage of all the patch colors */
	chcol **scols;				/* Location sorted pointers to cols */
	int nchan = 0;				/* Number of device chanels */
	int npat;					/* Number of overall patches */
	int *pis;					/* Passes in eachstrip, zero terminated */
	int stipa;					/* Steps in each Pass */
	int totpa;					/* Total Passes Needed */
	int runpat;					/* Rounded Up to (totpa * stipa) Number of patches */
	int wpat;					/* Set to index of white patch for display */
	int si;						/* Sample id index */
	int li;						/* Location id index */
	int ti;						/* Temp index */
	int fi;						/* Colorspace index */
	double plen = 7.366, glen = 2.032, tlen = 18.8;	/* Patch, gap and trailer length in mm */

	set_exe_path(argv[0]);		/* Set global exe_path and error_program */
	check_if_not_interactive();

	if (argc <= 1)
		usage();

	/* Process the arguments */
	mfa = 1;        /* Minimum final arguments */
	for(fa = 1;fa < argc;fa++) {
		nfa = fa;					/* skip to nfa if next argument is used */
		if (argv[fa][0] == '-') {		/* Look for any flags */
			char *na = NULL;		/* next argument after flag, null if none */

			if (argv[fa][2] != '\000')
				na = &argv[fa][2];		/* next is directly after flag */
			else {
				if ((fa+1+mfa) < argc) {
					if (argv[fa+1][0] != '-') {
						nfa = fa + 1;
						na = argv[nfa];		/* next is seperate non-flag argument */
					}
				}
			}

			if (argv[fa][1] == '?')
				usage();

			/* Verbose */
			else if (argv[fa][1] == 'v') {
				verb = 1;
				g_log->verb = verb;

			/* No auto calibration */
			} else if (argv[fa][1] == 'N')
				nocal = 1;

			/* Disable bi-directional strip recognition */
			else if (argv[fa][1] == 'B')
				disbidi = 1;

			/* High res mode */
			else if (argv[fa][1] == 'H')
				highres = 1;

			/* Colorimeter Correction Matrix or */
			/* or Colorimeter Calibration Spectral Samples */
			else if (argv[fa][1] == 'X') {
				int ix;
				fa = nfa;
				if (na == NULL) usage();
				strncpy(ccxxname,na,MAXNAMEL-1); ccxxname[MAXNAMEL-1] = '\000';

			/* CCSS Spectral Observer type */
			} else if (argv[fa][1] == 'Q') {
				fa = nfa;
				if (na == NULL) usage();
				if (strcmp(na, "1931_2") == 0) {			/* Classic 2 degree */
					obType = icxOT_CIE_1931_2;
				} else if (strcmp(na, "1964_10") == 0) {	/* Classic 10 degree */
					obType = icxOT_CIE_1964_10;
				} else if (strcmp(na, "2012_2") == 0) {		/* Latest 2 degree */
					obType = icxOT_CIE_2012_2;
				} else if (strcmp(na, "2012_10") == 0) {	/* Latest 10 degree */
					obType = icxOT_CIE_2012_10;
#ifndef SALONEINSTLIB
				} else if (strcmp(na, "1955_2") == 0) {		/* Stiles and Burch 1955 2 degree */
					obType = icxOT_Stiles_Burch_2;
				} else if (strcmp(na, "1978_2") == 0) {		/* Judd and Voss 1978 2 degree */
					obType = icxOT_Judd_Voss_2;
				} else if (strcmp(na, "shaw") == 0) {		/* Shaw and Fairchilds 1997 2 degree */
					obType = icxOT_Shaw_Fairchild_2;
#endif /* !SALONEINSTLIB */
				} else {	/* Assume it's a filename */
					obType = icxOT_custom;
					if (read_cmf(custObserver, na) != 0)
						usage();
				}
			}

			/* Scan tolerance ratio */
			else if (argv[fa][1] == 'T') {
				fa = nfa;
				if (na == NULL)
					usage();
				scan_tol = atof(na);

			/* Suppress warnings */
			} else if (argv[fa][1] == 'S') {
				emit_warnings = 0;

			/* Serial port flow control */
			} else if (argv[fa][1] == 'W') {
				fa = nfa;
				if (na == NULL) usage();
				if (na[0] == 'n' || na[0] == 'N')
					fc = fc_None;
				else if (na[0] == 'h' || na[0] == 'H')
					fc = fc_Hardware;
				else if (na[0] == 'x' || na[0] == 'X')
					fc = fc_XonXOff;
				else
					usage();


			/* Debug coms */
			} else if (argv[fa][1] == 'D') {
				debug = 1;
				if (na != NULL && na[0] >= '0' && na[0] <= '9') {
					debug = atoi(na);
					fa = nfa;
				}
				g_log->debug = debug;

			/* COM port  */
			} else if (argv[fa][1] == 'c') {
				fa = nfa;
				if (na == NULL) usage();
				comport = atoi(na);
				if (comport < 1 || comport > 99) usage();

			/* Request transmission measurement */
			} else if (argv[fa][1] == 't') {
				emis = 0;
				trans = 1;
				displ = 0;

			/* Request display measurement */
			} else if (argv[fa][1] == 'd') {

				emis = 0;
				trans = 0;
				displ = 2;

			/* Request emissive measurement */
			} else if (argv[fa][1] == 'e') {
				emis = 1;
				trans = 0;
				displ = 0;

			/* Display type */
			} else if (argv[fa][1] == 'y') {
				fa = nfa;
				if (na == NULL) usage();
				ditype = na[0];
				if (ditype == '_' && na[1] != '\000')
					ditype = ditype << 8 | na[1];


			/* Request patch by patch measurement */
			} else if (argv[fa][1] == 'p') {
				pbypatch = 1;

			/* Request external values */
			} else if (argv[fa][1] == 'x') {
				fa = nfa;
				if (na == NULL) usage();

				if (na[0] == 'l' || na[0] == 'L')
					xtern = 1;
				else if (na[0] == 'x' || na[0] == 'X')
					xtern = 2;
				else
					usage();

			/* Turn off spectral measurement */
			} else if (argv[fa][1] == 'n')
				spectral = 0;

			/* Save as Lab */
			else if (argv[fa][1] == 'l')
				dolab = 1;

			/* Save as Lab */
			else if (argv[fa][1] == 'L')
				dolab = 2;

			/* Resume reading a chart */
			else if (argv[fa][1] == 'r')
				doresume = 1;

			/* Printer calibration info */
			else if (argv[fa][1] == 'I') {
				fa = nfa;
				if (na == NULL) usage();
				strncpy(calname,na,MAXNAMEL); calname[MAXNAMEL] = '\000';

			/* Filter configuration */
			} else if (argv[fa][1] == 'F') {
				fa = nfa;
				if (na == NULL) usage();
				if (na[0] == 'n' || na[0] == 'N')
					fe = inst_opt_filter_none;
				else if (na[0] == 'p' || na[0] == 'P')
					fe = inst_opt_filter_pol;
				else if (na[0] == '6')
					fe = inst_opt_filter_D65;
				else if (na[0] == 'u' || na[0] == 'U')
					fe = inst_opt_filter_UVCut;
				else
					usage();

			/* XRGA conversion */
			} else if (argv[fa][1] == 'A') {
				fa = nfa;
				if (na == NULL) usage();
				if (na[0] == 'N')
					scalstd = xcalstd_none;
				else if (na[0] == 'A')
					scalstd = xcalstd_xrga;
				else if (na[0] == 'X')
					scalstd = xcalstd_xrdi;
				else if (na[0] == 'G')
					scalstd = xcalstd_gmdi;
				else
					usage();

#ifndef SALONEINSTLIB
			/* Plot spectral patch by patch */
			} else if (argv[fa][1] == 'P') {
				doplot = 1;
#endif

			/* Extra flags */
			} else if (argv[fa][1] == 'Y') {
				if (na == NULL)
					usage();
			
				/* ~~~ i1pro2 test code ~~~ */
				if (na[0] == 'U') {
					uvmode = 1;
				} else {
					usage();
				}
				fa = nfa;

			} else 
				usage();
		} else
			break;
	}

	/* Get the file name argument */
	if (fa >= argc || argv[fa][0] == '-') usage();
	strcpy(inname,argv[fa]);
	strcat(inname,".ti2");
	strcpy(outname,argv[fa]);
	strcat(outname,".ti3");

	/* See if there is an environment variable ccxx */
	if (ccxxname[0] == '\000') {
		char *na;
		if ((na = getenv("ARGYLL_COLMTER_CAL_SPEC_SET")) != NULL) {
			strncpy(ccxxname,na,MAXNAMEL-1); ccxxname[MAXNAMEL-1] = '\000';

		} else if ((na = getenv("ARGYLL_COLMTER_COR_MATRIX")) != NULL) {
			strncpy(ccxxname,na,MAXNAMEL-1); ccxxname[MAXNAMEL-1] = '\000';
		}
	}

	icg = new_cgats();			/* Create a CGATS structure */
	icg->add_other(icg, "CTI2"); 	/* our special input type is Calibration Target Information 2 */
	icg->add_other(icg, "CAL");		/* There may be a calibration too */

	if (icg->read_name(icg, inname))
		error("CGATS file read error : %s",icg->err);

	if (icg->ntables == 0 || icg->t[0].tt != tt_other || icg->t[0].oi != 0)
		error ("Input file isn't a CTI2 format file");
	if (icg->ntables < 1)
		error ("Input file doesn't contain at least one table");

	if ((npat = icg->t[0].nsets) <= 0)
		error ("No sets of data in first table");

	/* Setup output cgats file */
	ocg = new_cgats();				/* Create a CGATS structure */
	ocg->add_other(ocg, "CTI3"); 		/* our special type is Calibration Target Information 3 */
	ocg->add_table(ocg, tt_other, 0);	/* Start the first table */

	ocg->add_kword(ocg, 0, "DESCRIPTOR", "Argyll Calibration Target chart information 3",NULL);
	ocg->add_kword(ocg, 0, "ORIGINATOR", "Argyll chartread", NULL);
	atm[strlen(atm)-1] = '\000';	/* Remove \n from end */
	ocg->add_kword(ocg, 0, "CREATED",atm, NULL);
	if (displ != 0)
		ocg->add_kword(ocg, 0, "DEVICE_CLASS","DISPLAY", NULL);	/* What sort of device this is */
	else
		ocg->add_kword(ocg, 0, "DEVICE_CLASS","OUTPUT", NULL);	/* What sort of device this is */

	if (itype == instUnknown) {
		if ((ti = icg->find_kword(icg, 0, "TARGET_INSTRUMENT")) >= 0) {

				if ((itype = inst_enum(icg->t[0].kdata[ti])) == instUnknown)
					error ("Unrecognised chart target instrument '%s'", icg->t[0].kdata[ti]);
		} else {
			itype = instI1Pro;		/* Default chart target instrument */
		}
	}

	if ((ti = icg->find_kword(icg, 0, "SINGLE_DIM_STEPS")) >= 0)
		ocg->add_kword(ocg, 0, "SINGLE_DIM_STEPS",icg->t[0].kdata[ti], NULL);

	if ((ti = icg->find_kword(icg, 0, "COMP_GREY_STEPS")) >= 0)
		ocg->add_kword(ocg, 0, "COMP_GREY_STEPS",icg->t[0].kdata[ti], NULL);

	if ((ti = icg->find_kword(icg, 0, "MULTI_DIM_STEPS")) >= 0)
		ocg->add_kword(ocg, 0, "MULTI_DIM_STEPS",icg->t[0].kdata[ti], NULL);

	if ((ti = icg->find_kword(icg, 0, "FULL_SPREAD_PATCHES")) >= 0)
		ocg->add_kword(ocg, 0, "FULL_SPREAD_PATCHES",icg->t[0].kdata[ti], NULL);
	
	if ((ti = icg->find_kword(icg, 0, "ACCURATE_EXPECTED_VALUES")) >= 0
	 && strcmp(icg->t[0].kdata[ti], "true") == 0)
		accurate_expd = 1;

	if ((ti = icg->find_kword(icg, 0, "STEPS_IN_PASS")) < 0)
		error ("Input file doesn't contain keyword STEPS_IN_PASS");
	stipa = atoi(icg->t[0].kdata[ti]);

	/* Old style */
	if ((ti = icg->find_kword(icg, 0, "PASSES_IN_STRIPS")) >= 0) {
		char *paists = icg->t[0].kdata[ti];
		int nstr;

		/* Count the number of strips (sheets) */
		for (nstr = 0; paists[nstr] != '\000'; nstr++)
			;

		/* Allocate space for passes in strips */
		if ((pis = (int *)calloc(sizeof(int), nstr+1)) == NULL)
			error("Malloc failed!");

		/* Set the number or passes per strip */
		for (i = 0; i < nstr; i++) {
			pis[i] = b62_int(&paists[i]);
		}
		pis[i] = 0;

	/* New style */
	} else if ((ti = icg->find_kword(icg, 0, "PASSES_IN_STRIPS2")) >= 0) {
		char *cp, *paists = icg->t[0].kdata[ti];
		int nstr;


		/* Count the number of strips (sheets) */
		for (nstr = 1, cp = paists; *cp != '\000'; cp++) {
			if (*cp == ',') {
				nstr++;
				*cp = '\000';
			}
		}


		/* Allocate space for passes in strips */
		if ((pis = (int *)calloc(sizeof(int), nstr+1)) == NULL)
			error("Malloc failed!");

		/* Set the number or passes per strip */
		for (i = 0, cp = paists; i < nstr; i++) {
			pis[i] = atoi(cp);
			cp += strlen(cp) + 1;
		}
		pis[i] = 0;
		
	} else
		error ("Input file doesn't contain keyword PASSES_IN_STRIPS");

	/* Get specified location indexing patterns */
	if ((ti = icg->find_kword(icg, 0, "STRIP_INDEX_PATTERN")) >= 0)
		pixpat = icg->t[0].kdata[ti];
	if ((ti = icg->find_kword(icg, 0, "PATCH_INDEX_PATTERN")) >= 0)
		sixpat = icg->t[0].kdata[ti];
	if ((ti = icg->find_kword(icg, 0, "INDEX_ORDER")) >= 0) {
		if (strcmp(icg->t[0].kdata[ti], "PATCH_THEN_STRIP") == 0)
			ixord = 1;
	}

	if ((ti = icg->find_kword(icg, 0, "RANDOM_START")) >= 0) {
		rstart = atoi(icg->t[0].kdata[ti]);
		rand = 1;
	} else if ((ti = icg->find_kword(icg, 0, "CHART_ID")) >= 0) {
		rstart = atoi(icg->t[0].kdata[ti]);
		rand = 0;
	}

	if ((ti = icg->find_kword(icg, 0, "HEXAGON_PATCHES")) >= 0)
		hex = 1;

	if ((paix = new_alphix(pixpat)) == NULL)
		error("Strip indexing pattern '%s' doesn't parse",pixpat);

	if ((saix = new_alphix(sixpat)) == NULL)
		error("Patch in strip indexing pattern '%s' doesn't parse",sixpat);

	if ((ti = icg->find_kword(icg, 0, "TOTAL_INK_LIMIT")) >= 0)
		ocg->add_kword(ocg, 0, "TOTAL_INK_LIMIT",icg->t[0].kdata[ti], NULL);

	if (itype == instDTP20
	 || itype == instDTP41) {	/* DTP20/41 specific info */
		if ((ti = icg->find_kword(icg, 0, "PATCH_LENGTH")) < 0)
			error ("Input file doesn't contain keyword PATCH_LENGTH");
		plen = atof(icg->t[0].kdata[ti]);
		if ((ti = icg->find_kword(icg, 0, "GAP_LENGTH")) < 0)
			error ("Input file doesn't contain keyword GAP_LENGTH");
		glen = atof(icg->t[0].kdata[ti]);
		if ((ti = icg->find_kword(icg, 0, "TRAILER_LENGTH")) < 0) {
			tlen = 18.0;	/* Default for backwards compatibility */
		} else 
			tlen = atof(icg->t[0].kdata[ti]);
	}

	if (verb) {
		printf("Steps in each Pass = %d\n",stipa);
		printf("Passes in each Strip = ");
		for (i = 0; pis[i] != 0; i++) {
			printf("%s%d",i > 0 ? ", " : "", pis[i]);
		}
		printf("\n");
	}

	/* Fields we want */

	if ((si = icg->find_field(icg, 0, "SAMPLE_ID")) < 0)
		error ("Input file doesn't contain field SAMPLE_ID");
	if (icg->t[0].ftype[si] != nqcs_t)
		error ("Field SAMPLE_ID is wrong type");
	ocg->add_field(ocg, 0, "SAMPLE_ID", nqcs_t);

	if ((li = icg->find_field(icg, 0, "SAMPLE_LOC")) < 0)
		error ("Input file doesn't contain field SAMPLE_LOC");
	if (icg->t[0].ftype[li] != cs_t)
		error ("Field SAMPLE_LOC is wrong type");
	ocg->add_field(ocg, 0, "SAMPLE_LOC", cs_t);

	totpa = (npat + stipa -1)/stipa;	/* Total passes for all strips */
	runpat = stipa * totpa;				/* Rounded up totao number of patches */
	if (runpat < npat)		/* (If pattern doesn't match patches) */
		runpat = npat;
	if ((cols = (chcol *)malloc(sizeof(chcol) * runpat)) == NULL)
		error("Malloc failed!");
	if ((scols = (chcol **)calloc(sizeof(chcol *), runpat)) == NULL)
		error("Malloc failed!");

	/* Figure out the color space */
	if ((fi = icg->find_kword(icg, 0, "COLOR_REP")) < 0)
		error ("Input file doesn't contain keyword COLOR_REP");

	if ((nmask = icx_char2inkmask(icg->t[0].kdata[fi])) != 0) {
		int i, j, ii;
		int chix[ICX_MXINKS];	/* Device chanel indexes */
		int xyzix[3];			/* XYZ/Lab chanel indexes */
		char *ident;			/* Full ident */
		char *bident;			/* Base ident */
		char *xyzfname[3] = { "XYZ_X", "XYZ_Y", "XYZ_Z" };
		char *labfname[3] = { "LAB_L", "LAB_A", "LAB_B" };
		int gotexyz = 1;		/* Flag set if input file already has approx XYZ */ 
		icxColorantLu *clu;	/* Xcolorants model based Device -> CIE */

		nchan = icx_noofinks(nmask);
		ident = icx_inkmask2char(nmask, 1); 
		bident = icx_inkmask2char(nmask, 0); 

		/* Device channels */
		for (j = 0; j < nchan; j++) {
			int imask;
			char fname[100];

			imask = icx_index2ink(nmask, j);
			sprintf(fname,"%s_%s",nmask == ICX_W || nmask == ICX_K ? "GRAY" : bident,
			                      icx_ink2char(imask));

			if ((ii = icg->find_field(icg, 0, fname)) < 0)
				error ("Input file doesn't contain field %s",fname);
			if (icg->t[0].ftype[ii] != r_t)
				error ("Field %s is wrong type - expect float",fname);
	
			ocg->add_field(ocg, 0, fname, r_t);
			chix[j] = ii;
		}

		/* Approximate XYZ */
		for (j = 0; j < 3; j++) {
			if ((ii = icg->find_field(icg, 0, xyzfname[j])) >= 0) {
				if (icg->t[0].ftype[ii] != r_t)
					error ("Field %s is wrong type - expect float",xyzfname[j]);
				xyzix[j] = ii;
			} else {
				gotexyz = 0;
			}
		}

		/* Measured XYZ and/or Lab */
		if (dolab == 0 || dolab == 2) {
			for (j = 0; j < 3; j++)
				ocg->add_field(ocg, 0, xyzfname[j], r_t);
		} 
		if (dolab == 1 || dolab == 2) {
			for (j = 0; j < 3; j++)
				ocg->add_field(ocg, 0, labfname[j], r_t);
		}

		if ((clu = new_icxColorantLu(nmask)) == NULL)
			error ("Creation of xcolorant lu object failed");

		{
			char fname[100];
			if (dolab)
				sprintf(fname, "%s_LAB", ident);
			else
				sprintf(fname, "%s_XYZ", ident);
			ocg->add_kword(ocg, 0, "COLOR_REP", fname, NULL);
		}

		/* Read all the test patches in */
		for (i = 0; i < npat; i++) {
			cols[i].id = ((char *)icg->t[0].fdata[i][si]);
			cols[i].loc = ((char *)icg->t[0].fdata[i][li]);
			cols[i].n  = nchan;
			for (j = 0; j < nchan; j++)
				cols[i].dev[j] = *((double *)icg->t[0].fdata[i][chix[j]]) / 100.0;
			if (gotexyz) {
				for (j = 0; j < 3; j++)
					cols[i].eXYZ[j] = *((double *)icg->t[0].fdata[i][xyzix[j]]);
			} else {
				clu->dev_to_XYZ(clu, cols[i].eXYZ, cols[i].dev);
				for (j = 0; j < 3; j++)
					cols[i].eXYZ[j] *= 100.0;
			}
			cols[i].XYZ[0] = cols[i].XYZ[1] = cols[i].XYZ[2] = -1.0;
		}

		for (; i < runpat; i++) {
			cols[i].id = cols[i].loc = "-1";
			for (j = 0; j < nchan; j++)
				cols[i].dev[j] = 0.0;
			clu->dev_to_XYZ(clu, cols[i].eXYZ, cols[i].dev);
			for (j = 0; j < 3; j++)
				cols[i].eXYZ[j] *= 100.0;
			cols[i].XYZ[0] = cols[i].XYZ[1] = cols[i].XYZ[2] = -1.0;
		}

		clu->del(clu);
		free(ident);
		free(bident);
	} else
		error ("Input file keyword COLOR_REP has unknown value");

	/* Read any user supplied calibration information */
	if (calname[0] != '\000') {
		if ((cal = new_xcal()) == NULL)
			error("new_xcal failed");
		if ((cal->read(cal, calname)) != 0)
			error("%s",cal->err);
	}

	/* If the user hasn't overridden it, get any calibration in the .ti2 */
	if (cal == NULL) {			/* No user supplied calibration info */
		int oi, tab;

		oi = icg->get_oi(icg, "CAL");

		for (tab = 0; tab < icg->ntables; tab++) {
			if (icg->t[tab].tt == tt_other && icg->t[tab].oi == oi) {
				break;
			}
		}
		if (tab < icg->ntables) {
			if ((cal = new_xcal()) == NULL) {
				error("new_xcal failed");
			}
			if (cal->read_cgats(cal, icg, tab, inname) != 0)  {
				error("%s",cal->err);
			}
		}
	}

	/* If there is calibration information, write it to the .ti3 */
	if (cal != NULL) {			/* No user supplied calibration info */
		if (cal->write_cgats(cal, ocg) != 0) {
			error("%s",cal->err);
		}
		cal->del(cal);
		cal = NULL;
	}

	/* Set up the location sorted array of pointers. */
	/* If the order is not randomized, we don't care what form */
	/* the location identifiers take - i.e. they can be arbitrary. */
	{
		int badloc = 0;

		for (i = 0; i < npat; i++) {
			scols[i] = &cols[i];
			if ((cols[i].loci = patch_location_order(paix, saix, ixord, cols[i].loc)) < 0)
				badloc = 1;
		}
		for (; i < runpat; i++) {	/* Extra on end */
			scols[i] = &cols[i];
			cols[i].loci = (totpa-1) * (256 - stipa) + i; 
/* printf("~~extra = %d, %d\n",cols[i].loci >> 8, cols[i].loci & 255); */
		}

		/* Reset 'read' flag and all data */
		for (i = 0; i < runpat; i++) {
			cols[i].rr = 0;
			cols[i].XYZ[0] = -1.0;
			cols[i].XYZ[1] = -1.0;
			cols[i].XYZ[2] = -1.0;
			cols[i].sp.spec_n = 0;
		}

		if (rand && badloc)
			error ("Bad location field value '%s' on patch %d", cols[i].loc, i);

		if (!badloc) {
#define HEAP_COMPARE(A,B) (A->loci < B->loci)
			HEAPSORT(chcol *, scols, npat);
		}
	}

	/* If we're resuming a chartread, fill in all the patches that */
	/* have been read. */
	if (doresume) {
		cgats *rcg;                 /* output cgats structure */
		int nrpat;					/* Number of resumed patches */
		int lix;					/* Patch location index */
		int islab = 0;				/* nz if Lab, z if XYZ */
		int cieix[3];				/* CIE value indexes */
		int hasspec = 0;			/* nz if has spectral */
		xspect sp;					/* Parameters of spectrum */
		int spi[XSPECT_MAX_BANDS];	/* CGATS indexes for each wavelength */
		char *fname[2][3] = { { "XYZ_X", "XYZ_Y", "XYZ_Z" },
		                      { "LAB_L", "LAB_A", "LAB_B" } };
		int k, ii;
		char buf[200];

		/* Open and look at the .ti3 profile patches file */
		rcg = new_cgats();			/* Create a CGATS structure */
		rcg->add_other(rcg, "CTI3"); 	/* our special input type is Calibration Target Information 3 */
		rcg->add_other(rcg, "CAL"); 	/* our special device Calibration state */
	
		if (rcg->read_name(rcg, outname))
			error("Unable to read chart being resumed '%s' : %s",outname, rcg->err);
	
		if (rcg->ntables == 0 || rcg->t[0].tt != tt_other || rcg->t[0].oi != 0)
			error ("Resumed file '%s' isn't a CTI3 format file",outname);
		if (rcg->ntables < 1)
			error ("Resumed file '%s' doesn't contain at least one table",outname);
	
		if ((lix = rcg->find_field(rcg, 0, "SAMPLE_LOC")) < 0)
			error ("Resumed file '%s' doesn't contain SAMPLE_LOC field",outname);
		if (rcg->t[0].ftype[lix] != cs_t)
			error("Field SAMPLE_LOC is wrong type - corrupted file ?");

		/* Get the CIE field indexes */
		if (rcg->find_field(rcg, 0, "LAB_L") >= 0)
			islab = 1;
			
		for (j = 0; j < 3; j++) {
			if ((cieix[j] = rcg->find_field(rcg, 0, fname[islab][j])) < 0)
				error("Input file doesn't contain field %s",fname[islab][j]);
			if (rcg->t[0].ftype[cieix[j]] != r_t)
				error("Field %s is wrong type - corrupted file ?",fname[islab][j]);
		} 
	
		if ((ii = rcg->find_kword(rcg, 0, "SPECTRAL_BANDS")) >= 0) {
			hasspec = 1;
			sp.spec_n = atoi(rcg->t[0].kdata[ii]);
			if ((ii = rcg->find_kword(rcg, 0, "SPECTRAL_START_NM")) < 0)
				error ("Resumed file '%s' doesn't contain keyword SPECTRAL_START_NM",outname);
			sp.spec_wl_short = atof(rcg->t[0].kdata[ii]);
			if ((ii = rcg->find_kword(rcg, 0, "SPECTRAL_END_NM")) < 0)
				error ("Resumed file '%s' doesn't contain keyword SPECTRAL_END_NM",outname);
			sp.spec_wl_long = atof(rcg->t[0].kdata[ii]);
	
			/* Find the fields for spectral values */
			for (j = 0; j < sp.spec_n; j++) {
				int nm;
		
				/* Compute nearest integer wavelength */
				nm = (int)(sp.spec_wl_short + ((double)j/(sp.spec_n-1.0))
				            * (sp.spec_wl_long - sp.spec_wl_short) + 0.5);
				
				sprintf(buf,"SPEC_%03d",nm);
	
				if ((spi[j] = rcg->find_field(rcg, 0, buf)) < 0)
					error("Resumed file '%s' doesn't contain field %s",outname,buf);

				if (rcg->t[0].ftype[spi[j]] != r_t)
					error("Field %s is wrong type - expect float",buf);
			}
		}

		nrpat = rcg->t[0].nsets;

		/* Now see if we can match the previously read patches. */
		/* We'll use the patch location to do this. */
		for (i = 0; i < runpat; i++) {
			int k;
			for (k = 0; k < nrpat; k++) {
				if (strcmp(cols[i].loc, ((char *)rcg->t[0].fdata[k][lix])) == 0)
					break;
			}
			if (k >= nrpat)
				continue;
		
#ifdef DEBUG
			printf("Recovering patch '%s' value from .ti3 file\n",cols[i].loc);
#endif
			cols[i].XYZ[0] = *((double *)rcg->t[0].fdata[k][cieix[0]]);
			cols[i].XYZ[1] = *((double *)rcg->t[0].fdata[k][cieix[1]]);
			cols[i].XYZ[2] = *((double *)rcg->t[0].fdata[k][cieix[2]]);
			if (islab) {
				icmLab2XYZ(&icmD50, cols[i].XYZ, cols[i].XYZ);
				cols[i].XYZ[0] *= 100.0;
				cols[i].XYZ[1] *= 100.0;
				cols[i].XYZ[2] *= 100.0;
			}
			if (hasspec) {
				cols[i].sp.spec_n = sp.spec_n;
				cols[i].sp.spec_wl_short = sp.spec_wl_short;
				cols[i].sp.spec_wl_long = sp.spec_wl_long;
				for (j = 0; j < sp.spec_n; j++)
					cols[i].sp.spec[j] = *((double *)rcg->t[0].fdata[k][spi[j]]);
			}
			cols[i].rr = 1;
		}
		rcg->del(rcg);
	}

	/* We can't fiddle white point with spectral data, */
	/* so turn spectral off for display with white point relative. */
	if (displ == 2 || displ == 3) {
		spectral = 0;

		/* Check that there is a white patch, so that we can compute Y relative */
		/* Read all the test patches in */
		if (nmask != ICX_RGB)
			error("Don't know how to handle non-RGB display space");

		for (wpat = 0; wpat < npat; wpat++) {
			if (cols[wpat].dev[0] > 0.9999999 && 
			    cols[wpat].dev[1] > 0.9999999 && 
			    cols[wpat].dev[2] > 0.9999999) {
				break;
			}
		}
		if (wpat >= npat) {	/* Create a white patch */
			error("Can't compute white Y relative display values without a white test patch");
		}
	}

	if (!xtern) {
		if ((icmps = new_icompaths(g_log)) == NULL)
			error("Finding instrument paths failed");
		if ((ipath = icmps->get_path(icmps, comport)) == NULL)
			error("No instrument at port %d",comport);
	}

	/* Read all of the strips in */
	if (read_strips(itype, scols, &atype, npat, totpa, stipa, pis, paix,
	                saix, ixord, rstart, rand, hex, ipath, fc, plen, glen, tlen,
	                trans, emis, displ, ditype, fe, scalstd, &ucalstd, nocal, disbidi, highres,
		            ccxxname, obType, custObserver,
	                scan_tol, pbypatch, xtern, spectral, uvmode, accurate_expd,
	                emit_warnings, doplot, g_log) == 0) {
		/* And save the result */

		int nrpat;				/* Number of read patches */
		int vpix = 0;			/* Valid patch index, if nrpatch > 0 */
		int nsetel = 0;
		cgats_set_elem *setel;	/* Array of set value elements */

		/* Note what instrument the chart was read with */
		ocg->add_kword(ocg, 0, "TARGET_INSTRUMENT", inst_name(atype) , NULL);

		/* X-Rite calibration standard (If reflective mode) */
		if (displ == 0 && trans == 0 && ucalstd != xcalstd_none) 
			ocg->add_kword(ocg, 0, "DEVCALSTD",xcalstd2str(ucalstd), NULL);

		if (fe == inst_opt_filter_pol)
			ocg->add_kword(ocg, 0, "INSTRUMENT_FILTER", "POLARIZED", NULL);
		else if (fe == inst_opt_filter_D65)
			ocg->add_kword(ocg, 0, "INSTRUMENT_FILTER", "D65", NULL);
		else if (fe == inst_opt_filter_UVCut)
			ocg->add_kword(ocg, 0, "INSTRUMENT_FILTER", "UVCUT", NULL);

		/* Count patches actually read */
		for (nrpat = i = 0; i < npat; i++) {
			if (cols[i].rr) {
				vpix = i;
				nrpat++;
			}
		}

		/* If we've used a display white relative mode, record the absolute white */
		if (displ == 2 || displ == 3) {
			double nn[3];
			char buf[100];

			if (cols[wpat].rr == 0) {
				error("Can't compute white Y relative display values without reading a white test patch");
			}
			sprintf(buf,"%f %f %f", cols[wpat].XYZ[0], cols[wpat].XYZ[1], cols[wpat].XYZ[2]);
			ocg->add_kword(ocg, 0, "LUMINANCE_XYZ_CDM2",buf, NULL);

			/* Normalise to white Y 100 */
			if (displ == 2) {
				nn[0] = 100.0 / cols[wpat].XYZ[1];
				nn[1] = 100.0 / cols[wpat].XYZ[1];
				nn[2] = 100.0 / cols[wpat].XYZ[1];
			/* Normalise to the white point */
			} else {
				nn[0] = 100.0 * icmD50.X / cols[wpat].XYZ[0];
				nn[1] = 100.0 * icmD50.Y / cols[wpat].XYZ[1];
				nn[2] = 100.0 * icmD50.Z / cols[wpat].XYZ[2];
			}

			for (i = 0; i < npat; i++) {
				if (cols[i].rr) {
					cols[i].XYZ[0] *= nn[0];
					cols[i].XYZ[1] *= nn[1];
					cols[i].XYZ[2] *= nn[2];
				}
			}
		}

		nsetel += 1;		/* For id */
		nsetel += 1;		/* For loc */
		nsetel += nchan;	/* For device values */
		nsetel += 3;		/* For XYZ or Lab */
		if (dolab == 2)
			nsetel += 3;	/* For XYZ and Lab */

		/* If we have spectral information, output it too */
		if (nrpat > 0 && cols[vpix].sp.spec_n > 0) {
			char buf[100];

			nsetel += cols[vpix].sp.spec_n;		/* Spectral values */
			sprintf(buf,"%d", cols[vpix].sp.spec_n);
			ocg->add_kword(ocg, 0, "SPECTRAL_BANDS",buf, NULL);
			sprintf(buf,"%f", cols[vpix].sp.spec_wl_short);
			ocg->add_kword(ocg, 0, "SPECTRAL_START_NM",buf, NULL);
			sprintf(buf,"%f", cols[vpix].sp.spec_wl_long);
			ocg->add_kword(ocg, 0, "SPECTRAL_END_NM",buf, NULL);

			/* Generate fields for spectral values */
			for (i = 0; i < cols[vpix].sp.spec_n; i++) {
				int nm;
		
				/* Compute nearest integer wavelength */
				nm = (int)(cols[vpix].sp.spec_wl_short + ((double)i/(cols[vpix].sp.spec_n-1.0))
				            * (cols[vpix].sp.spec_wl_long - cols[vpix].sp.spec_wl_short) + 0.5);
				
				sprintf(buf,"SPEC_%03d",nm);
				ocg->add_field(ocg, 0, buf, r_t);
			}
		}

		if ((setel = (cgats_set_elem *)malloc(sizeof(cgats_set_elem) * nsetel)) == NULL)
			error("Malloc failed!");

		/* Write out the patch info to the output CGATS file */
		for (i = 0; i < npat; i++) {
			int k = 0;

			if (cols[i].rr == 0					/* If this patch wasn't read */
			 || strcmp(cols[i].id, "0") == 0)	/* or it is a padding patch. */
				continue;			/* Skip it */

			setel[k++].c = cols[i].id;
			setel[k++].c = cols[i].loc;
			
			for (j = 0; j < nchan; j++)
				setel[k++].d = 100.0 * cols[i].dev[j];

			if (dolab == 0 || dolab == 2) {
				setel[k++].d = cols[i].XYZ[0];
				setel[k++].d = cols[i].XYZ[1];
				setel[k++].d = cols[i].XYZ[2];
			}
			if (dolab == 1 || dolab == 2) {
				double lab[3];
				double xyz[3];

				xyz[0] = cols[i].XYZ[0]/100.0;
				xyz[1] = cols[i].XYZ[1]/100.0;
				xyz[2] = cols[i].XYZ[2]/100.0;
				icmXYZ2Lab(&icmD50, lab, xyz);
				setel[k++].d = lab[0];
				setel[k++].d = lab[1];
				setel[k++].d = lab[2];
			}

			/* Check that the spectral matches, in case we're resuming */
			if (   cols[i].sp.spec_n != cols[vpix].sp.spec_n
				|| fabs(cols[i].sp.spec_wl_short - cols[vpix].sp.spec_wl_short) > 0.01
				|| fabs(cols[i].sp.spec_wl_long - cols[vpix].sp.spec_wl_long) > 0.01 ) {
				error("The resumed spectral type seems to have changed!");
			}

			for (j = 0; j < cols[i].sp.spec_n; j++) {
				setel[k++].d = cols[i].sp.spec[j];
			}

			ocg->add_setarr(ocg, 0, setel);
		}

		free(setel);

		if (ocg->write_name(ocg, outname))
			error("Write error : %s",ocg->err);
	}

	icmps->del(icmps);
	free(pis);
	saix->del(saix);
	paix->del(paix);
	free(cols);
	ocg->del(ocg);		/* Clean up */
	icg->del(icg);		/* Clean up */

	return 0;
}