summaryrefslogtreecommitdiff
path: root/profile/profout.c
blob: 47726f19ed263cc9883d346fad925909ba82dece (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
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270

/* 
 * Argyll Color Correction System
 * Output device profile creator.
 *
 * Author: Graeme W. Gill
 * Date:   11/10/00
 *
 * Copyright 2000-2011 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 takes in the scattered test chart
 * points, and interpolates them into a gridded
 * forward ICC device profile for an output or display device,
 * using a clut based profle.
 * It also creates backward tables based on the forward grid.
 *
 * Preview profiles are not currently generated.
 * 
 * The gamut clut should be implemented with xicc/rspl
 */

/*
 * TTBD:
 *
 *	For flexibility, it might be nice to allow the user to override the
 *  default intent for all 3 output tables, allowing fully custom usage.
 *  ie. Would be nice to offer various relative colorimetric intents,
 *  so that more image friendly versions could be chosen. 
 *  (Need to break dependence between intents CAM to do this with full flexibility).
 *
 *  Need to make this more of a library:
 *  Fix error handling
 *  fix verbose output
 *  hand icc object back rather than writing file ?
 *
 *	In theory we could add a ARGYLL_CREATE_OUTPUT_PROFILE_WITH_CHAD option
 *  for the case of a non-D50 illuminant. spec2cie (and colprof internally) would
 *  have to put the illuminant white point in the .ti3 file and chromatically
 *  transform the XYZ/Lab values, and then colprof would create the chad tag
 *  with the illuminant to D50 matrix. icclib would have to undo the
 *  transform for absolute intent.
 */

/*
	Outline of code flow:

	profout:
		Create ICC profile and all the tags, and setup any options.
		Table tags are initialy not set.

		Read in the CGTATS data and convert spectral to PCS if needed.

		Wrap the icc in an xicc, and then create an xicc lookup object
		for the device->PCS tables by calling xicc->set_luobj().

		For a CLUT type profile, create a gamut mapping object and
		setup all the other bits and peices needed to convert a color
		from PCS to device, then use (icc) icmSetMultiLutTables() which will
		call back the out_b2a_input(), out_b2a_clut() and out_b2a_output()
		functions.
 */

#undef DEBUG				/* Print B2A processing information */
#undef DEBUG_ONE			/* Test a particular value rather than process whole grid */

#define verbo stdout

#undef IMP_MONO					/* [Undef] Turn on development code */

#define EMPH_DISP_BLACKPOINT	/* [Define] Increase weight near diplay black point */
#define IGNORE_DISP_ZEROS	    /* [Define] Ignore points with zero value if not at dev. zero */
#define NO_B2A_PCS_CURVES		/* [Define] PCS curves seem to make B2A less accurate. Why ? */
#define USE_CAM_CLIP_OPT		/* [Define] Clip out of gamut in CAM space rather than PCS */
#define USE_LEASTSQUARES_APROX	/* [Define] Use least squares fitting approximation in B2A */
//#undef USE_EXTRA_FITTING		/* [Undef] Turn on data point error compensation in A2B */
//#undef USE_2PASSSMTH			/* [Undef] Turn on Gaussian smoothing in A2B */
#undef DISABLE_GAMUT_TAG		/* [Undef] To disable gamut tag */
#undef WARN_CLUT_CLIPPING		/* [Undef] Print warning if setting clut clips */
#undef COMPARE_INV_CLUT			/* [Undef] Compare result of inv_clut with clut to diag inv probs */
#undef FILTER_B2ACLIP			/* [Undef] Filter clip area of B2A (Causes reversal problems) */
#define FILTER_THR_DE 3.0		/* [5.0] Filtering threshold DE */
#define FILTER_MAX_DE 5.0		/* [10.0] Filtering DE to gamut surface at whit MAX_RAD starts */
#define FILTER_MAX_RAD 0.1		/* [0.1] Filtering maximum radius in grid */

#include <stdio.h>
#include "numlib.h"
#include "icc.h"
#include "cgats.h"
#include "xicc.h"
#include "counters.h"
#include "rspl.h"
#include "insttypes.h"
#include "prof.h"
#include "gamut.h"
#include "gammap.h"

#ifndef MAX_CAL_ENT
#define MAX_CAL_ENT 4096
#endif

/*
   Basic algorithm outline:

 Printer:
   Figure out the input curves to give
   the flattest grid.

   Figure out the grid values.

   Use them to generate all the A2B tables.

   Use the inverse rspl code to compute
   all the B2A profiles.

*/

/*
	Notes:

	The shared gamma/shaper support is for silly applications
	like which can't handle display profiles that have per
	chanel gamma's, per chanel curves or clut based display profiles.

*/

/* NOTE:-
	It's interesting that the white and black points recorded in the tags,
	generally won't quite match the white and black points returned by
	looking up the profile in absolute mode.

	For a Matrix profile, in the case of the white point this is
	because we may not be using the ICC 16 bit quantized value to
	create the relative transform matrix, and in the case of
	the black point, it can never be a perfect match because the black
	point returned by a profile lookup will be the quantized black
	point of the matrix, transformed by the rel->abs matrix, which
	generally won't be equal to an ICC quantized value.
	It might help the latter case if we were at least able to convert
	the profile quantized black point into the absolute black point
	via the rel->abs transform, and then quantize it.

	Of course all of this will be worse in the Lut type profile,
	due to the white and black points being stored in a different
	quantized space (XYZ vs. Lab) than the Lut grid point values!
 */


#ifdef DEBUG
#undef DBG
#define DBG(xxx) printf xxx ;
#else
#undef DBG
#define DBG(xxx) 
#endif

/* ---------------------------------------- */

/* structure to support output icc B2A Lut initialisation calbacks. */
/* Note that we don't cope with a LUT matrix - assume it's unity. */

typedef struct {
	int verb;
	int total, count, last;	/* Progress count information */
	int noPCScurves;		/* Flag set if we don't want PCS curves */
	int filter;				/* Filter clipped values */
	double filter_thr;		/* Clip DE threshold */
	double filter_ratio;	/* Clip DE to radius factor */
	double filter_maxrad;	/* Clip maximum filter radius */
	icColorSpaceSignature pcsspace;	/* The profile PCS colorspace */
	icColorSpaceSignature devspace;	/* The profile device colorspace */
	icxLuLut *x;			/* A2B icxLuLut we are inverting in std PCS */

	int ntables;			/* Number of tables being set. 1 = colorimetric */
							/* 2 = colorimetric + saturation, 3 = all intents */
	int ochan;				/* Number of output channels for B2A */
	gammap *pmap;			/* Perceptual CAM to CAM Gamut mapping, NULL if no mapping */
	gammap *smap;			/* Saturation CAM to CAM Gamut mapping, NULL if no mapping */
	icxLuBase *ixp;			/* Source profile perceptual PCS to CAM conversion */
	icxLuBase *ox;			/* Destination profile CAM to std PCS conversion */
							/* (This is NOT used for the colorimetric B2A table creation!) */
	icxcam *icam;			/* Alternate to ixp when using default general compression */
	icColorSpaceSignature mapsp;	/* output space needed from icam conversion */

							/* Abstract transform for each table. These may be */
							/* duplicates. */
	icRenderingIntent abs_intent[3];	/* Desired abstract profile rendering intent */
	icxLuBase *abs_luo[3];		/* abstract profile transform in PCS, NULL if none */

	double xyzscale[2];		/* < 1.0 if XYZ is to be scaled in destination space */
							/* for perceptual [0], and saturation [1] */
	double swxyz[3];		/* Source white point in XYZ */

    gamut *gam;				/* Output gamut object for setting gamut Lut */
	int wantLab;			/* 0 if is XYZ PCS, 1 if is Lab PCS */
} out_b2a_callback;

/* Utility to handle abstract profile application to PCS. */
/* PCS in creating output table is always XYZ or Lab relative colorimetric, */
/* and abstract profile is absolute or relative, and will be */
/* XYZ if absolute, and PCS if relative. */
static void do_abstract(out_b2a_callback *p, int tn, double out[3], double in[3]) {
	out[0] = in[0];
	out[1] = in[1];
	out[2] = in[2];

	if (p->abs_intent[tn] == icAbsoluteColorimetric) {
		if (p->pcsspace == icSigLabData) {
			icmLab2XYZ(&icmD50, out, out);
		}
		p->x->plu->XYZ_Rel2Abs(p->x->plu, out, out);
	}

	p->abs_luo[tn]->lookup(p->abs_luo[tn], out, out);

	if (p->abs_intent[tn] == icAbsoluteColorimetric) {
		p->x->plu->XYZ_Abs2Rel(p->x->plu, out, out);
		if (p->pcsspace == icSigLabData) {
			icmXYZ2Lab(&icmD50, out, out);
		}
	}
}

/* --------------------------------------------------------- */

/* Extra non-linearity applied to BtoA XYZ PCS. */
/* This distributes the LUT indexes more evenly in */
/* perceptual space, greatly improving the B2A accuracy of XYZ LUT */
/* To better use the full range of the grid, and also to make sure */
/* that the white point gets mapped accurately, scale the XYZ to put */
/* the D50 white at the top corner of the grid. */

/* Y to L* */
static void y2l_curve(double *out, double *in) {
	int i;
	double sc = 65535.0/32768.0;	/* Scale from 0.0 .. 1.999969 to 0.0 .. 1.0 and back */
	double val;

	for (i = 0; i < 3; i++) {
		val = in[i];
		val /= icmD50_ary3[i];		/* Put white at top of grid and scale */
		if (val > 0.008856451586)
			val = 1.16 * pow(val,1.0/3.0) - 0.16;
		else
			val = 9.032962896 * val;
		if (val > 1.0)
			val = 1.0;
		val *= sc;					/* Unscale */
		out[i] = val;
	}
}

/* L* to Y */
static void l2y_curve(double *out, double *in) {
	int i;
	double sc = 65535.0/32768.0;	/* Scale from 0.0 .. 1.999969 to 0.0 .. 1.0 and back */
	double val;

	/* Use an L* like curve, scaled to the maximum XYZ value */
	for (i = 0; i < 3; i++) {
		val = in[i];
		val /= sc;					/* Scale */
		if (val > 0.08)
			val = pow((val + 0.16)/1.16, 3.0);
		else
			val = val/9.032962896;
		val *= icmD50_ary3[i];		/* Unscale and put white at top of grid */
		out[i] = val;
	}
}

/* --------------------------------------------------------- */

/* sRGB device gamma encoded value to linear value 0.0 .. 1.0 */
static double gdv2dv(double iv) {
	double ov;

	if (iv < 0.04045)
		ov = iv/12.92;
	else
		ov = pow((iv + 0.055)/1.055, 2.4);
	return ov;
}


/* --------------------------------------------------------- */
/* NOTE :- the assumption that each stage of the BtoA is a mirror */
/* of the AtoB makes for inflexibility. */
/* Perhaps it would be better to remove this asumption from the */
/* out_b2a_clut processing ? */
/* To do this we then need inv_out_b2a_input(), and */
/* inv_out_b2a_output(), and we need to clearly distinguish between */
/* AtoB PCS' & DEV', and BtoA PCS' & DEV', since they are not */
/* necessarily the same... */


/* B2A Input table is the inverse of the AtoB output table */
/* Input PCS output PCS'' */
void out_b2a_input(void *cntx, double out[3], double in[3]) {
	out_b2a_callback *p = (out_b2a_callback *)cntx;

	DBG(("out_b2a_input got         PCS %f %f %f\n",in[0],in[1],in[2]))

	/* PCS to PCS' */
	if (p->noPCScurves) {
		out[0] = in[0];
		out[1] = in[1];
		out[2] = in[2];
	} else {
		if (p->x->inv_output(p->x, out, in) > 1)
			error("%d, %s",p->x->pp->errc,p->x->pp->err);
	}
	/* PCS' to PCS'' */
	if (p->pcsspace == icSigXYZData)	/* Apply XYZ non-linearity curve */
		y2l_curve(out, out);

	DBG(("out_b2a_input returning PCS'' %f %f %f\n",out[0],out[1],out[2]))
}

/* clut - multitable */
/* Input PCS' output Dev' */
/* We're applying any abstract profile after gamut mapping, */
/* on the assumption is is primarily being used to "correct" the */
/* output device. Ideally the gamut mapping should take the change */
/* the abstract profile has on the output device into account, but */
/* currently we're not doing this.. */
/* If ICM_CLUT_SET_FILTER is being used, then */
/* we need to set a filter radius value at out[-1-table] */
void out_b2a_clut(void *cntx, double *out, double in[3]) {
	out_b2a_callback *p = (out_b2a_callback *)cntx;
	double inn[3], in1[3];
	double cdist = 0.0;		/* Clipping DE */
	int tn;

	DBG(("\nout_b2a_clut got      PCS'' %f %f %f\n",in[0],in[1],in[2]))

	in1[0] = in[0];		/* in[] may be aliased with out[] */
	in1[1] = in[1];		/* so take a copy.  */
	in1[2] = in[2];		/* (If we were using "index-under", we should copy it too) */

	DBG(("out_b2a_clut got       PCS' %f %f %f\n",in[0],in[1],in[2]))

	if (p->pcsspace == icSigXYZData)		/* Undo effects of extra XYZ non-linearity curve */
		l2y_curve(in1, in1);

	inn[0] = in1[0];	/* Copy of PCS' for 2nd and 3rd tables */
	inn[1] = in1[1];
	inn[2] = in1[2];

	if (p->abs_luo[0] != NULL) {	/* Abstract profile to apply to first table only. */

		if (!p->noPCScurves) {	/* Convert from PCS' to PCS so we can apply abstract */
			if (p->x->output(p->x, in1, in1) > 1)
				error("%d, %s",p->x->pp->errc,p->x->pp->err);
		}
		do_abstract(p, 0, in1, in1);	/* Abstract profile to apply to first table */
		DBG(("through abstract prof   PCS %f %f %f\n",in1[0],in1[1],in1[2]))
		/* We now have PCS */
	}

	if (p->noPCScurves || p->abs_luo[0] != NULL) {	/* We were given PCS or have converted to PCS */

		/* PCS to PCS' */
		if (p->x->inv_output(p->x, in1, in1) > 1)
			error("%d, %s",p->x->pp->errc,p->x->pp->err);

		DBG(("noPCScurves = %d, abs_luo[0] = 0x%x\n",p->noPCScurves,p->abs_luo[0]))
		DBG(("convert PCS to PCS' got     %f %f %f\n",in1[0],in1[1],in1[2]))
	}

	/* Invert AtoB clut (PCS' to Dev') Colorimetric */
	/* to producte the colorimetric tables output. */
	/* (Note that any aux target if we were using one, would be in Dev space) */
	if (p->x->inv_clut_aux(p->x, out, NULL, NULL, NULL, &cdist, in1) > 1)
		error("%d, %s",p->x->pp->errc,p->x->pp->err);
	if (p->filter) {
		cdist -= p->filter_thr;
		if (cdist < 0.0)
			cdist = 0.0; 
		cdist *= p->filter_ratio;
		if (cdist > p->filter_maxrad)
			cdist = p->filter_maxrad;
		out[-1-0] = cdist;
	}

	DBG(("convert PCS' to DEV' got    %s\n",icmPdv(p->ochan, out)))

#ifdef COMPARE_INV_CLUT		/* Compare the inversion result with the fwd lookup */
	{
		double chk[3];

		if (p->x->clut(p->x, chk, out) > 1)
			error("%d, %s",p->x->pp->errc,p->x->pp->err);

		DBG(("check DEV' to PCS' got      %f %f %f\n",chk[0],chk[1],chk[2]))
	}
#endif
	if (p->ntables > 1) {		/* Do first part once for both intents */
		double *tnout = out;	/* This tables output values */

		DBG(("\n"))

		/* Starting with original input inn[] PCS' (no abstract profile applied to other tables) */
		in1[0] = inn[0];
		in1[1] = inn[1];
		in1[2] = inn[2];

		if (!p->noPCScurves) {					/* Convert from PCS' to PCS */
			if (p->x->output(p->x, in1, in1) > 1)
				error("%d, %s",p->x->pp->errc,p->x->pp->err);
		}
		DBG(("convert PCS' to PCS got %f %f %f\n",in1[0],in1[1],in1[2]))

		/* Convert from profile PCS to CAM/Gamut mapping space */
		if (p->ixp != NULL) {
			p->ixp->fwd_relpcs_outpcs(p->ixp, p->pcsspace, in1, in1);

		} else {	/* General compression fallback conversion to CAM/Gamut mapping space */

			if (p->mapsp == icxSigJabData) {	/* Want icxSigJabData for mapping */

				if (p->pcsspace == icSigLabData)
					icmLab2XYZ(&icmD50, in1, in1);

				p->icam->XYZ_to_cam(p->icam, in1, in1);

			} else {	/* Must be icSigLabData for mapping */

				if (p->pcsspace == icSigXYZData)
					icmXYZ2Lab(&icmD50, in1, in1);
			}
		}

		DBG(("convert PCS to CAM got %f %f %f\n",in1[0],in1[1],in1[2]))

		/* Apply gamut mapping in CAM space for remaining tables */
		/* and create the output values */
		for (tn = 1; tn < p->ntables; tn++) {
			double in2[3];

			tnout += p->ochan;	/* next table/intent */
			in2[0] = in1[0];	/* Copy in1[] so it can be used for both tables */
			in2[1] = in1[1];
			in2[2] = in1[2];

			/* Do luminence scaling if requested */
			if (p->xyzscale[tn-1] < 1.0) {
				double xyz[3];

				DBG(("got xyzscale = %f\n",p->xyzscale[tn-1]))
				DBG(("PCS %f %f %f\n",in2[0], in2[1], in2[2]))
				/* Convert our CAM to XYZ */
				/* We're being bad in delving inside the xluo, but we'll fix it latter */
				p->ox->cam->cam_to_XYZ(p->ox->cam, xyz, in2);

				DBG(("XYZ %f %f %f\n",xyz[0], xyz[1], xyz[2]))
				/* Scale it */
				xyz[0] *= p->xyzscale[tn-1];
				xyz[1] *= p->xyzscale[tn-1];
				xyz[2] *= p->xyzscale[tn-1];

				DBG(("scaled XYZ %f %f %f\n",xyz[0], xyz[1], xyz[2]))
				/* Convert back to CAM */
				/* We're being bad in delving inside the xluo, but we'll fix it latter */
				p->ox->cam->XYZ_to_cam(p->ox->cam, in2, xyz);

				DBG(("scaled PCS %f %f %f\n",in2[0], in2[1], in2[2]))
			}

			if (tn == 1) {
				DBG(("percep gamut map in %f %f %f\n",in2[0],in2[1],in2[2]))
				p->pmap->domap(p->pmap, in2, in2);	/* Perceptual mapping */
				DBG(("percep gamut map out %f %f %f\n",in2[0],in2[1],in2[2]))
			} else {
				DBG(("sat gamut map in %f %f %f\n",in2[0],in2[1],in2[2]))
				p->smap->domap(p->smap, in2, in2);	/* Saturation mapping */
				DBG(("sat gamut map got %f %f %f\n",in2[0],in2[1],in2[2]))
			}

			/* Convert from Gamut maping/CAM space to PCS */
			p->ox->bwd_outpcs_relpcs(p->ox, p->pcsspace, in2, in2);
			DBG(("convert CAM to PCS got %f %f %f\n",in2[0],in2[1],in2[2]))

			if (p->abs_luo[tn] != NULL)		/* Abstract profile to other tables after gamut map */
				do_abstract(p, tn, in2, in2);

			/* Convert from PCS to PCS' */
			if (p->x->inv_output(p->x, in2, in2) > 1)
				error("%d, %s",p->x->pp->errc,p->x->pp->err);
				DBG(("convert PCS to PCS' got %f %f %f\n",in2[0],in2[1],in2[2]))

			/* Invert AtoB clut (PCS' to Dev') */
			/* to producte the perceptual or saturation tables output. */
			/* (Note that any aux target if we were using one, would be in Dev space) */
			if (p->x->inv_clut_aux(p->x, tnout, NULL, NULL, NULL, &cdist, in2) > 1)
				error("%d, %s",p->x->pp->errc,p->x->pp->err);
			if (p->filter) {
				cdist -= p->filter_thr;
				if (cdist < 0.0)
					cdist = 0.0; 
				cdist *= p->filter_ratio;
				if (cdist > p->filter_maxrad)
					cdist = p->filter_maxrad;
				out[-1-tn] = cdist;
			}
			DBG(("convert PCS' to DEV' got %s\n",icmPdv(p->ochan, tnout)))
		}
	}

	DBG(("out_b2a_clut returning DEV' %s\n",icmPdv(p->ochan, out)))

	if (p->verb) {		/* Output percent intervals */
		int pc;
		p->count++;
		pc = (int)(p->count * 100.0/p->total + 0.5);
		if (pc != p->last) {
			printf("%c%2d%%",cr_char,pc); fflush(stdout);
			p->last = pc;
		}
	}
}

/* Output table is the inverse of the AtoB input table */
/* Input Dev' output Dev */
void out_b2a_output(void *cntx, double out[4], double in[4]) {
	out_b2a_callback *p = (out_b2a_callback *)cntx;

	DBG(("out_b2a_output got      DEV' %s\n",icmPdv(p->ochan,in)))

	if (p->x->inv_input(p->x, out, in) > 1)
		error("%d, %s",p->x->pp->errc,p->x->pp->err);

	DBG(("out_b2a_output returning DEV %s\n",icmPdv(p->ochan,out)))
}

/* --------------------------------------------------------- */

/* PCS' -> distance to gamut boundary */
static void PCSp_bdist(void *cntx, double out[1], double in[3]) {
	out_b2a_callback *p = (out_b2a_callback *)cntx;
	double pcs[3];				/* PCS value of input */
	double nrad;				/* normalised radial value of point */
	double np[3];				/* Nearest point */
	double gdist;				/* Out of gamut distance */
	
//printf("~1 bdist got PCS %f %f %f\n",in[0],in[1],in[2]);
	/* Do PCS' -> PCS */
	if (p->x->inv_output(p->x, pcs, in) > 1)
		error("%d, %s",p->x->pp->errc,p->x->pp->err);

	/* If PCS is XYZ, convert to Lab */
	if (p->wantLab == 0) {
		icmXYZ2Lab(&icmD50, pcs, pcs);
//printf("~1 bdist converted to Lab %f %f %f\n",pcs[0],pcs[1],pcs[2]);
	}

	/* Check if this point is in or out of gamut */
	nrad = p->gam->nradial(p->gam, np, pcs);

//printf("~1 nrad = %f\n",nrad);

	/* Radial rather than nearest distance seems the best overall. */

	gdist = icmNorm33(np, pcs);
	if (nrad <= 1.0)
		gdist = -gdist;		/* -ve delta E if within gamut */
	
//printf("~1 gdist %f\n",gdist);

	/* Distance in PCS space will be roughly -128 -> 128 */
	/* Clip to range -20 - +20, then scale to 0.0 - 1.0 */
	if (gdist < -20.0)
		gdist = -20.0;
	else if (gdist > 20.0)
		gdist = 20.0;

	out[0] = (gdist + 20.0)/40.0;
//printf("~1 bdist returning %f\n",out[0]);

	if (p->verb) {		/* Output percent intervals */
		int pc;
		p->count++;
		pc = (int)(p->count * 100.0/p->total + 0.5);
		if (pc != p->last) {
			printf("%c%2d%%",cr_char,pc); fflush(stdout);
			p->last = pc;
		}
	}
}

/* The output table for a Gamut lut is usually a special function, returning */
/* a value of 0 for all inputs <= 0.5, and then outputing between */
/* 0.0 and 1.0 for the input range 0.5 to 1.0. This is so a graduated */
/* "gamut boundary distance" number from the multi-d lut can be */
/* translated into the ICC "0.0 if in gamut, > 0.0 if not" number. */
static void gamut_output(void *cntx, double out[1], double in[1]) {
	double iv, ov;
	iv = in[0];
	if (iv <= 0.5)
		ov = 0.0;
	else
		ov = (iv - 0.5) * 2.0;
	out[0] = ov;
}

/* -------------------------------------------------------------- */
/* powell() callback to set XYZ white scaling factor for */
/* Absolute Appearance mode with scaling intent */

static double xyzoptfunc(void *cntx, double *v) {
	out_b2a_callback *p = (out_b2a_callback *)cntx;
	double swxyz[3], jab[3], dev[MAX_CHAN];
	double rv;
	int rc;

	rv = 2.0 - v[0];	/* Make Y as large as possible */

	/* If we wanted to use this function to maximise the brightness */
	/* we would not limit the scale to 1.0 */
	if (v[0] > 1.0) {
		rv += 1000.0;
		return rv;
	}
	if (v[0] < 0.0) {
		rv += 100.0;
		return rv;
	}
	swxyz[0] = v[0] * p->swxyz[0];
	swxyz[1] = v[0] * p->swxyz[1];
	swxyz[2] = v[0] * p->swxyz[2];

//printf("~1 scaled white XYZ = %f %f %f\n", swxyz[0], swxyz[1], swxyz[2]);

	/* We're being bad in delving inside the xluo, but we'll fix it latter */
	p->ox->cam->XYZ_to_cam(p->ox->cam, jab, swxyz);

//printf("~1 scaled white Jab = %f %f %f\n", jab[0], jab[1], jab[2]);

	/* Run the target PCS backwards through the output space to see if it clips */
	rc = p->ox->inv_lookup(p->ox, dev, jab);
//printf("~1 device = %f %f %f, rc = %d\n", dev[0], dev[1], dev[2],rc);
	if (rc != 0)
		rv += 500.0;

//printf("~1 xyzoptfunc rv %f from xyzscale %f\n\n",rv,v[0]);
	return rv;
}

/* -------------------------------------------------------------- */
/* Make an output device profile, where a forward mapping is from */
/* RGB/CMYK to XYZ/Lab space */
void
make_output_icc(
	prof_atype ptype,		/* Profile algorithm type */
	int mtxtoo,				/* NZ if matrix tags should be created for Display XYZ cLUT */
	icmICCVersion iccver,	/* ICC profile version to create */
	int verb,				/* Vebosity level, 0 = none */
	int iquality,			/* A2B table quality, 0..3 */
	int oquality,			/* B2A table quality, 0..3 */
	int noisluts,			/* nz to supress creation of input (Device) shaper luts */
	int noipluts,			/* nz to supress creation of input (Device) position luts */
	int nooluts,			/* nz to supress creation of output (PCS) shaper luts */
	int nocied,				/* nz to supress inclusion of .ti3 data in profile */
	int noptop,				/* nz to use colorimetic source gamut to make perceptual table */ 
	int nostos,				/* nz to use colorimetic source gamut to make saturation table */
	int gamdiag,			/* Make gamut mapping diagnostic wrl plots */
	int verify,				/* nz to print verification */
	int clipprims,			/* Clip white, black and primaries */
	double wpscale,			/* >= 0.0 for media white point scale factor */
//	double *bpo,			/* != NULL for XYZ black point override */
	icxInk *oink,			/* Ink limit/black generation setup (NULL if n/a) */
	char *in_name,			/* input .ti3 file name */
	char *file_name,		/* output icc name */
	cgats *icg,				/* input cgats structure */
	int spec,				/* Use spectral data flag */
	icxIllumeType tillum,	/* Target/simulated instrument illuminant, if set. */ 
	xspect *cust_tillum,	/* Custom target/simulated illumination spectrum */
	                        /* if tillum == icxIT_custom */
	icxIllumeType illum,	/* CIE calc. illuminant spectrum, and FWA inst. */
							/* illuminant if tillum not set. */
	xspect *cust_illum,		/* Custom CIE illumination spectrum if illum == icxIT_custom */
	icxObserverType obType,	/* CIE calc. observer */
	xspect custObserver[3],	/* If obType = icxOT_custom */
	int fwacomp,			/* FWA compensation requested */
	double smooth,			/* RSPL smoothing factor, -ve if raw */
	double avgdev,			/* reading Average Deviation as a proportion of the input range */
	double demph,			/* Emphasise dark region grid resolution in cLUT */
	int gcompr,				/* Gamut compression % if > 0, rather than use ipname */
	int gexpr,				/* Gamut saturation expansion % if gcompr > 0 rather */
	char *ipname,			/* input icc profile - enables gamut map, NULL if none */
	char *sgname,			/* source image gamut - NULL if none */
	char *absname[3],		/* abstract profile name for each table */
	int sepsat,				/* Create separate Saturation B2A */
	icxViewCond *ivc_p,		/* Input Viewing Parameters for CAM */
	icxViewCond *ovc_p,		/* Output Viewing Parameters for CAM */
	int ivc_e,				/* Input Enumerated viewing condition */
	int ovc_e,				/* Output Enumerated viewing condition */
	icxGMappingIntent *pgmi,/* Perceptual gamut mapping intent */
	icxGMappingIntent *sgmi,/* Saturation gamut mapping intent */
	profxinf *xpi			/* Optional Profile creation extra data */
) {
	int isdisp;				/* nz if this is a display device, 0 if output */
	double dispLuminance = 0.0;	/* Display luminance. 0.0 if not known */
	int isdnormed = 0;		/* Has display data been normalised to white Y = 100 ? */
	int allintents;			/* nz if all intents should possibly be created */
	double *ill_wp = NULL;	/* If illum is not D50, illum white point XYZ */
	double _ill_wp[3];		/* (What ill_wp points at if it is not NULL) */
	icmFile *wr_fp;
	icc *wr_icco;
	int npat;				/* Number of patches */
	cow *tpat;				/* Patch input values */
	int i, j, rv = 0;
	icColorSpaceSignature devspace = icmSigDefaultData;	/* The device colorspace */
	inkmask imask = 0;		/* Device inkmask */ 
	int isAdditive = 0;		/* 0 if subtractive, 1 if additive colorspace */
	int isLab = 0;			/* 0 if input is XYZ, 1 if input is Lab */
	int wantLab = 0;		/* 0 if want XYZ, 1 want Lab */
	int isLut = 0;			/* 0 if shaper+ matrix, 1 if lut type */
	int isShTRC = 0;		/* 0 if separate gamma/shaper TRC, 1 if shared */
	int devchan = 0;		/* Number of device chanels */
	int a2binres = 0;		/* A2B input (device) table resolution */
	int a2bres = 0;			/* A2B clut resolution */
	int a2boutres = 0;		/* A2B output (PCS) table resolution */
	int b2ainres = 0;		/* B2A input (PCS) table resolution */
	int b2ares = 0;			/* B2A clut resolution */
	int b2aoutres = 0;		/* B2A output (device) table resolution */
	xcal *cal = NULL;		/* Calibration if present, NULL if none */
	icxInk iink;			/* Source profile ink limit values */

	memset((void *)&iink, 0, sizeof(icxInk));
	iink.tlimit = -1.0;		/* default to unknown */
	iink.klimit = -1.0;

	if (ptype == prof_clutLab) {		/* Lab lut */
		wantLab = 1;
		isLut = 1;
	} else if (ptype == prof_clutXYZ) {	/* XYZ lut */
		wantLab = 0;
		isLut = 1;
	} else {
		wantLab = 0;			/* gamma/shaper + matrix profile must be XYZ */
		isLut = 0;

		if (ptype == prof_gam1mat	
		 || ptype == prof_sha1mat
		 || ptype == prof_matonly) {
			isShTRC = 1;		/* Single curve */
		}
	}

	{
		int ti;

		if ((ti = icg->find_kword(icg, 0, "DEVICE_CLASS")) < 0)
			error ("Input file doesn't contain keyword DEVICE_CLASS");

		if (strcmp(icg->t[0].kdata[ti],"DISPLAY") == 0) {
			isdisp = 1;
			if (isLut && (ipname != NULL || gcompr > 0))
				allintents = 1;
			else
				allintents = 0;		/* Only the default intent */
		} else {
			isdisp = 0;
			allintents = 1;
		}
	}

	/* See if display luminance data is present */
	if (isdisp) {
		int ti;

		if ((ti = icg->find_kword(icg, 0, "LUMINANCE_XYZ_CDM2")) >= 0) {
			if (sscanf(icg->t[0].kdata[ti], " %*f %lf %*f ",&dispLuminance) != 1)
				dispLuminance = 0.0;
		}

		/* See if the CIE data has been normalised to Y = 100 */
		/* If so, it's assumed to be by LUMINANCE_XYZ_CDM2 */
		/* By default assume not. */
		if ((ti = icg->find_kword(icg, 0, "NORMALIZED_TO_Y_100")) < 0
		 || strcmp(icg->t[0].kdata[ti],"NO") == 0) {
			isdnormed = 0;
		} else {
			isdnormed = 1;
		}
	}

	/* See if CIE illuminant white point is given, in case CIE data */
	/* is used, and 'chad' tag is going to be created. */
	if (!isdisp) {
		int ti;

		if ((ti = icg->find_kword(icg, 0, "ILLUMINANT_WHITE_POINT_XYZ")) >= 0) {
			if (sscanf(icg->t[0].kdata[ti], " %lf %lf %lf ",&_ill_wp[0],&_ill_wp[1],&_ill_wp[2]) == 3) {

				/* Normalize it */
				if (_ill_wp[1] > 1e-6) {
					_ill_wp[0] /= _ill_wp[1];
					_ill_wp[2] /= _ill_wp[1];
					_ill_wp[1] = 1.0;

					ill_wp = _ill_wp;
				}
			}
			if (verb)
				fprintf(verbo,"Unable to parse 'ILLUMINANT_WHITE_POINT_XYZ' keyword\n");
		}
	}

	/* Figure out what sort of device colorspace it is */
	{
		int ti;

		if ((ti = icg->find_kword(icg, 0, "COLOR_REP")) < 0)
			error("Input file doesn't contain keyword COLOR_REPS");

		if (strcmp(icg->t[0].kdata[ti],"CMYK_XYZ") == 0) {
			imask = ICX_CMYK;
			devspace = icSigCmykData;
			devchan = 4;
			isLab = 0;
			isAdditive = 0;
		} else if (strcmp(icg->t[0].kdata[ti],"CMYK_LAB") == 0) {
			imask = ICX_CMYK;
			devspace = icSigCmykData;
			devchan = 4;
			isLab = 1;
			isAdditive = 0;
		} else if (strcmp(icg->t[0].kdata[ti],"CMY_XYZ") == 0) {
			imask = ICX_CMY;
			devspace = icSigCmyData;
			devchan = 3;
			isLab = 0;
			isAdditive = 0;
		} else if (strcmp(icg->t[0].kdata[ti],"CMY_LAB") == 0) {
			imask = ICX_CMY;
			devspace = icSigCmyData;
			devchan = 3;
			isLab = 1;
			isAdditive = 0;
		} else if (strcmp(icg->t[0].kdata[ti],"RGB_XYZ") == 0) {
			imask = ICX_RGB;
			devspace = icSigRgbData;
			devchan = 3;
			isLab = 0;
			isAdditive = 1;
		} else if (strcmp(icg->t[0].kdata[ti],"RGB_LAB") == 0) {
			imask = ICX_RGB;
			devspace = icSigRgbData;
			devchan = 3;
			isLab = 1;
			isAdditive = 1;
		} else if (   strcmp(icg->t[0].kdata[ti],"iRGB_XYZ") == 0) {
			imask = ICX_IRGB;
			devspace = icSigRgbData;
			devchan = 3;
			isLab = 0;
			isAdditive = 1;
		} else if (strcmp(icg->t[0].kdata[ti],"iRGB_LAB") == 0) {
			imask = ICX_IRGB;
			devspace = icSigRgbData;
			devchan = 3;
			isLab = 1;
			isAdditive = 1;
#ifdef IMP_MONO
		} else if (strcmp(icg->t[0].kdata[ti],"K_XYZ") == 0) {
			imask = ICX_K;
			devspace = icSigGrayData;
			devchan = 1;
			isLab = 0;
			isAdditive = 0;
		} else if (strcmp(icg->t[0].kdata[ti],"K_LAB") == 0) {
			imask = ICX_K;
			devspace = icSigGrayData;
			devchan = 1;
			isLab = 1;
			isAdditive = 0;
		} else if (strcmp(icg->t[0].kdata[ti],"W_XYZ") == 0) {
			imask = ICX_W;
			devspace = icSigGrayData;
			devchan = 1;
			isLab = 0;
			isAdditive = 1;
		} else if (strcmp(icg->t[0].kdata[ti],"W_LAB") == 0) {
			imask = ICX_W;
			devspace = icSigGrayData;
			devchan = 1;
			isLab = 1;
			isAdditive = 1;
#endif /* IMP_MONO */
		} else 
			error("Output device input file has unhandled color representation '%s'",
			                                                     icg->t[0].kdata[ti]);
		/* Figure out some suitable table sizes */
		if (devchan >= 4) {			/* devchan == 4 or greater */
			if (iquality >= 3) {
		    	a2binres = 2048;
		    	a2bres = 23;
		    	a2boutres = 2048;
			} else if (iquality == 2) {
		    	a2binres = 2048;
		    	a2bres = 17;
		    	a2boutres = 2048;
			} else if (iquality == 1) {
		    	a2binres = 1024;
		    	a2bres = 9;
		    	a2boutres = 1024;
			} else {
		    	a2binres = 512;
		    	a2bres = 5;
		    	a2boutres = 512;
			}
		} else if (devchan >= 2) {		/* devchan == 2 or 3 */
			if (iquality >= 3) {
		    	a2binres = 2048;
		    	a2bres = 45;
		    	a2boutres = 2048;
			} else if (iquality == 2) {
		    	a2binres = 2048;
		    	a2bres = 33;
		    	a2boutres = 2048;
			} else if (iquality == 1) {
		    	a2binres = 1024;
		    	a2bres = 17;
		    	a2boutres = 1024;
			} else {
		    	a2binres = 512;
		    	a2bres = 9;
		    	a2boutres = 512;
			}
		} else {	/* devchan == 1 */
			if (iquality >= 3) {
		    	a2binres = 256;
		    	a2bres = 2048;
		    	a2boutres = 256;
			} else if (iquality == 2) {
		    	a2binres = 256;
		    	a2bres = 1024;
		    	a2boutres = 256;
			} else if (iquality == 1) {
		    	a2binres = 256;
		    	a2bres = 512;
		    	a2boutres = 256;
			} else {
		    	a2binres = 256;
		    	a2bres = 256;
		    	a2boutres = 256;
			}
		}

		if (devchan >= 2) {
			if (oquality >= 3) {	/* Ultra High */
		    	b2ainres = 2048;
		    	b2ares = 45;
		    	b2aoutres = 2048;
			} else if (oquality == 2) {
		    	b2ainres = 2048;
		    	b2ares = 33;		/* High */
		    	b2aoutres = 2048;
			} else if (oquality == 1) {
		    	b2ainres = 1024;
		    	b2ares = 17;		/* Medium */
		    	b2aoutres = 1024;
			} else if (oquality >= 0) {
		    	b2ainres = 512;
		    	b2ares = 9;			/* Low */
		    	b2aoutres = 512;
			} else {				/* Special, Extremely low quality */
		    	b2ainres = 64;
		    	b2ares = 3;
		    	b2aoutres = 64;
			}
		} else {	/* devchan == 1 */
			if (oquality >= 3) {	/* Ultra High */
		    	b2ainres = 256;
		    	b2ares = 3;
		    	b2aoutres = 4096;
			} else if (oquality == 2) {
		    	b2ainres = 256;
		    	b2ares = 3;		/* High */
		    	b2aoutres = 2048;
			} else if (oquality == 1) {
		    	b2ainres = 256;
		    	b2ares = 3;		/* Medium */
		    	b2aoutres = 1024;
			} else if (oquality >= 0) {
		    	b2ainres = 256;
		    	b2ares = 3;			/* Low */
		    	b2aoutres = 512;
			} else {				/* Special, Extremely low quality */
		    	b2ainres = 64;
		    	b2ares = 3;
		    	b2aoutres = 64;
			}
		}

	}

	/* See if there is a calibration in the .ti3, and read it if there is */
	{
		int oi, tab;

		if ((oi = icg->get_oi(icg, "CAL")) < 0)
			error("Expect CAL type to be registered");

		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, in_name) != 0)  {
				error("%s",cal->err);
			}

			if (cal->devmask != imask)
				error("Calibrate colorspace %s doesn't match .ti3 %s",
				       icx_inkmask2char(cal->devmask, 1), 
				       icx_inkmask2char(imask, 1));

			if ((isdisp && cal->devclass != icSigDisplayClass)
			 || (!isdisp && cal->devclass != icSigOutputClass)) 
				error("Calibration class %s doesn't match .ti3 %s",
				       icm2str(icmProfileClassSignature,cal->devclass),
				       isdisp ? "Display" : "Output");
		}
	}

	/* Open up the file for writing */
	if ((wr_fp = new_icmFileStd_name(file_name,"w")) == NULL)
		error("Write: Can't open file '%s'",file_name);

	if ((wr_icco = new_icc()) == NULL)
		error("Write: Creation of ICC object failed");

	/* Add all the tags required */

	/* The header: */
	{
		icmHeader *wh = wr_icco->header;

		/* Values that must be set before writing */
		if (isdisp)
			wh->deviceClass     = icSigDisplayClass;
		else
			wh->deviceClass     = icSigOutputClass;
    	wh->colorSpace      = devspace;					/* Device space it is */
		if (wantLab) 
	    	wh->pcs         = icSigLabData;
		else
    		wh->pcs         = icSigXYZData;				/* Must be XYZ for matrix based profile */

		if (xpi->default_ri != icMaxEnumIntent)
	    	wh->renderingIntent = xpi->default_ri;
		else
	    	wh->renderingIntent = icRelativeColorimetric;

		/* Values that should be set before writing */
		if (xpi != NULL && xpi->manufacturer != 0L)
			wh->manufacturer = xpi->manufacturer;
		else
			wh->manufacturer = icmSigUnknownType;

		if (xpi != NULL && xpi->model != 0L)
			wh->model        = xpi->model;
		else
	    	wh->model        = icmSigUnknownType;

		/* Values that may be set before writing */
		if (xpi != NULL && xpi->creator != 0L)
			wh->creator = xpi->creator;

		/* Default platform is OK */

		if (xpi != NULL && xpi->transparency)
			wh->attributes.l |= icTransparency;
		if (xpi != NULL && xpi->matte)
			wh->attributes.l |= icMatte;
		if (xpi != NULL && xpi->negative)
			wh->attributes.l |= icNegative;
		if (xpi != NULL && xpi->blackandwhite)
			wh->attributes.l |= icBlackAndWhite;
	}

	/* mtxtoo only applies to Display cLUT profiles */
	if (!isLut
		|| wr_icco->header->deviceClass != icSigDisplayClass
	    || wr_icco->header->pcs != icSigXYZData) {
		mtxtoo = 0;
	}

	/* Set the version of ICC profile we want */
	if (isdisp && allintents) {
		if (iccver < icmVersion2_4) {
			iccver = icmVersion2_4;		/* Need 2.4.0 for Display intents */
			if (verb)
				fprintf(verbo,"Bumped ICC version to 2.4.0 to accomodate multiple Display intents\n");
		}
	}
	if (wr_icco->set_version(wr_icco, iccver) != 0)
		error("set_version failed: %d, %s",wr_icco->errc,wr_icco->err);

	/* Profile Description Tag: */
	{
		icmTextDescription *wo;
		char *dst, dstm[200];			/* description */

		if (xpi != NULL && xpi->profDesc != NULL)
			dst = xpi->profDesc;
		else {
			sprintf(dstm, "This is a Lut style %s - %s Output Profile",
			devspace == icSigCmykData ? "CMYK" :
			            devspace == icSigCmyData ? "CMY" : "RGB",
			wantLab ? "Lab" : "XYZ");
			dst = dstm;
		}

		if ((wo = (icmTextDescription *)wr_icco->add_tag(
		           wr_icco, icSigProfileDescriptionTag,	icSigTextDescriptionType)) == NULL) 
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

		wo->size = strlen(dst)+1; 	/* Allocated and used size of desc, inc null */
		wo->allocate((icmBase *)wo);/* Allocate space */
		strcpy(wo->desc, dst);		/* Copy the string in */
	}
	/* Copyright Tag: */
	{
		icmText *wo;
		char *crt;

		if (xpi != NULL && xpi->copyright != NULL)
			crt = xpi->copyright;
		else
			crt = "Copyright, the creator of this profile";

		if ((wo = (icmText *)wr_icco->add_tag(
		           wr_icco, icSigCopyrightTag,	icSigTextType)) == NULL) 
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

		wo->size = strlen(crt)+1; 	/* Allocated and used size of text, inc null */
		wo->allocate((icmBase *)wo);/* Allocate space */
		strcpy(wo->data, crt);		/* Copy the text in */
	}
	/* Device Manufacturers Description Tag: */
	if (xpi != NULL && xpi->deviceMfgDesc != NULL) {
		icmTextDescription *wo;
		char *dst = xpi->deviceMfgDesc;

		if ((wo = (icmTextDescription *)wr_icco->add_tag(
		           wr_icco, icSigDeviceMfgDescTag,	icSigTextDescriptionType)) == NULL) 
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

		wo->size = strlen(dst)+1; 	/* Allocated and used size of desc, inc null */
		wo->allocate((icmBase *)wo);/* Allocate space */
		strcpy(wo->desc, dst);		/* Copy the string in */
	}
	/* Model Description Tag: */
	if (xpi != NULL && xpi->modelDesc != NULL) {
		icmTextDescription *wo;
		char *dst = xpi->modelDesc;

		if ((wo = (icmTextDescription *)wr_icco->add_tag(
		           wr_icco, icSigDeviceModelDescTag,	icSigTextDescriptionType)) == NULL) 
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

		wo->size = strlen(dst)+1; 	/* Allocated and used size of desc, inc null */
		wo->allocate((icmBase *)wo);/* Allocate space */
		strcpy(wo->desc, dst);		/* Copy the string in */
	}
	/* Display Luminance tag */
	if (isdisp && dispLuminance > 0.0) {
		{
			icmXYZArray *wo;;
	
			if ((wo = (icmXYZArray *)wr_icco->add_tag(
			           wr_icco, icSigLuminanceTag, icSigXYZArrayType)) == NULL) 
				error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

			wo->size = 1;
			wo->allocate((icmBase *)wo);	/* Allocate space */
			wo->data[0].X = 0.0;			/* Set a default value */
			wo->data[0].Y = dispLuminance;	/* Set a default value */
			wo->data[0].Z = 0.0;			/* Set a default value */
		}
	}
	/* White Point Tag: */
	{
		icmXYZArray *wo;
		/* Note that tag types icSigXYZType and icSigXYZArrayType are identical */
		if ((wo = (icmXYZArray *)wr_icco->add_tag(
		           wr_icco, icSigMediaWhitePointTag, icSigXYZArrayType)) == NULL) 
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

		wo->size = 1;
		wo->allocate((icmBase *)wo);	/* Allocate space */
		wo->data[0] = icmD50;			/* Set a default value - D50 */
	}
	/* Black Point Tag: */
	{
		icmXYZArray *wo;
		if ((wo = (icmXYZArray *)wr_icco->add_tag(
		           wr_icco, icSigMediaBlackPointTag, icSigXYZArrayType)) == NULL) 
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

		wo->size = 1;
		wo->allocate((icmBase *)wo);	/* Allocate space */
		wo->data[0] = icmBlack;			/* Set a default value - absolute black */
	}

	/* Colorant Table Tag: */
	{
		unsigned int i;
		icmColorantTable *wo;
		if ((wo = (icmColorantTable *)wr_icco->add_tag(
		           wr_icco, icSigColorantTableTag, icSigColorantTableType)) == NULL) 
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

   		wo->count = icmCSSig2nchan(devspace);
   		if (wo->count != (unsigned long)icx_noofinks(imask))
			error("Interna: device colorspace and inkmask conflict!");

		wo->allocate((icmBase *)wo);	/* Allocate ColorantTable structures */

		for (i = 0; i < wo->count; i++) {
			inkmask iimask;			/* Individual ink mask */
			char *name;
			
			iimask = icx_index2ink(imask, i);
			name = icx_ink2string(iimask); 
			if (strlen(name) > 31)
				error("Internal: colorant name exceeds 31 characters");
			strcpy(wo->data[i].name, name);
		}
		/* Fill in the colorant PCS values when we've got something to lookup */
	}

	/* vcgt tag */
	if (verb & isdisp && cal != NULL && cal->noramdac) {	/* We've been given vcgt information */
		fprintf(verbo,"Not writing calibration to 'vcgt' because there is no VideoLUT access\n");
	}
	if (isdisp && cal != NULL && !cal->noramdac) {	/* We've been given vcgt information */
		int j, i;
		int ncal = 256;					/* This is safe with other s/w */
		icmVideoCardGamma *wo;
		wo = (icmVideoCardGamma *)wr_icco->add_tag(wr_icco,
		                           icSigVideoCardGammaTag, icSigVideoCardGammaType);
		if (wo == NULL)
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

		wo->tagType = icmVideoCardGammaTableType;
		wo->u.table.channels = 3;			/* rgb */
		wo->u.table.entryCount = ncal;		/* full lut */
		wo->u.table.entrySize = 2;			/* 16 bits */
		wo->allocate((icmBase*)wo);
		for (j = 0; j < 3; j++) {
			for (i = 0; i < ncal; i++) {
				double cc, vv = i/(ncal - 1.0);
				cc = cal->interp_ch(cal, j, vv);
				if (cc < 0.0)
					cc = 0.0;
				else if (cc > 1.0)
					cc = 1.0;

				if (cal->tvenc) {
					cc = (cc * (235.0-16.0) + 16.0)/255.0;

					/* For video encoding the extra bits of precision are created by bit shifting */
					/* rather than scaling, so we need to scale the fp value to account for this. */
					/* We assume the precision is the vcgt table size = 16 */
					/* ~~99 ideally we should tag the fact that this is video encoded, so that */
					/* the vcgt loaded can adjust for a different bit precision ~~~~ */
					cc = (cc * 255 * (1 << (16 - 8)))/((1 << 16) - 1.0); 	
				}
				((unsigned short*)wo->u.table.data)[ncal * j + i] = (int)(cc * 65535.0 + 0.5);
			}
		}
	}

	if (isLut) {		/* Lut type profile */

		/* Up to and including ICC Version 2.3, Display LUT profiles were assumed */
		/* to have AtoB0 with no interpretation of the intent, which */
		/* implies Relative Colorimetric. */

		/* 16 bit dev -> pcs lut: (A2B) */
		{
			icmLut *wo;
	
			if (!allintents) {	/* Only A2B0, no intent */
				if ((wo = (icmLut *)wr_icco->add_tag(
				           wr_icco, icSigAToB0Tag,	icSigLut16Type)) == NULL) 
					error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
			} else {
				/* Intent 1 = relative colorimetric */
				if ((wo = (icmLut *)wr_icco->add_tag(
				           wr_icco, icSigAToB1Tag,	icSigLut16Type)) == NULL) 
					error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
			}
		
			wo->inputChan = devchan;
			wo->outputChan = 3;
	    	wo->clutPoints = a2bres;
	    	wo->inputEnt   = a2binres;
	    	wo->outputEnt  = a2boutres;
			wo->allocate((icmBase *)wo);/* Allocate space */
	
			/* icxLuLut will set tables values */
		}

		if (allintents) {	/* All the intents may be needed */

			/* 16 bit dev -> pcs lut - link intent 0 to intent 1 */
			{
				icmLut *wo;
				/* Intent 0 = perceptual */
				if ((wo = (icmLut *)wr_icco->link_tag(
				           wr_icco, icSigAToB0Tag,	icSigAToB1Tag)) == NULL) 
					error("link_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
			}
	
			/* 16 dev -> pcs bit lut - link intent 2 to intent 1 */
			{
				icmLut *wo;
				/* Intent 2 = saturation */
				if ((wo = (icmLut *)wr_icco->link_tag(
				           wr_icco, icSigAToB2Tag,	icSigAToB1Tag)) == NULL) 
					error("link_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
			}
		}

		/* 16 bit pcs -> dev lut: (B2A) */
		{
			icmLut *wo;

			if (!allintents) {	/* Only B2A0, no intent */
				if ((wo = (icmLut *)wr_icco->add_tag(
				           wr_icco, icSigBToA0Tag,	icSigLut16Type)) == NULL) 
					error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

			} else {

				/* Intent 1 = relative colorimetric */
				if ((wo = (icmLut *)wr_icco->add_tag(
				           wr_icco, icSigBToA1Tag,	icSigLut16Type)) == NULL) 
					error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
			}

			wo->inputChan = 3;
			wo->outputChan = devchan;
		    wo->clutPoints = b2ares;
		    wo->inputEnt   = b2ainres;
		    wo->outputEnt  = b2aoutres;
			wo->allocate((icmBase *)wo);/* Allocate space */
		}

		if (allintents) {	/* All the intents may be needed */

			if (ipname == NULL && gcompr <= 0) {		/* No gamut mapping */
				icmLut *wo;

				/* link intent 0 = perceptual to intent 1 = colorimetric */
				if ((wo = (icmLut *)wr_icco->link_tag(
				           wr_icco, icSigBToA0Tag,	icSigBToA1Tag)) == NULL) 
					error("link_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

				/* Intent 2 = saturation */
				/* link intent 2 = saturation to intent 1 = colorimetric */
				if ((wo = (icmLut *)wr_icco->link_tag(
				           wr_icco, icSigBToA2Tag,	icSigBToA1Tag)) == NULL) 
					error("link_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

			} else {				/* We have gamut mapping */
				icmLut *wo;

				/* Intent 0 = perceptual */
				if ((wo = (icmLut *)wr_icco->add_tag(
				           wr_icco, icSigBToA0Tag,	icSigLut16Type)) == NULL) 
					error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

				wo->inputChan = 3;
				wo->outputChan = devchan;
			    wo->inputEnt   = b2ainres;
			    wo->clutPoints = b2ares;
			    wo->outputEnt  = b2aoutres;
				wo->allocate((icmBase *)wo);/* Allocate space */

				if (sepsat == 0) {		/* No separate gamut mapping for saturation */
					/* link intent 2 = saturation to intent 0 = perceptual */
					if ((wo = (icmLut *)wr_icco->link_tag(
					           wr_icco, icSigBToA2Tag,	icSigBToA0Tag)) == NULL) 
						error("link_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
				} else {
					/* Intent 2 = saturation */
					if ((wo = (icmLut *)wr_icco->add_tag(
					           wr_icco, icSigBToA2Tag,	icSigLut16Type)) == NULL) 
						error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

					wo->inputChan = 3;
					wo->outputChan = devchan;
				    wo->inputEnt   = b2ainres;
				    wo->clutPoints = b2ares;
				    wo->outputEnt  = b2aoutres;
					wo->allocate((icmBase *)wo);/* Allocate space */
				}
			}

			/* 16 bit pcs -> gamut lut: */
			{
				icmLut *wo;

				if ((wo = (icmLut *)wr_icco->add_tag(
				           wr_icco, icSigGamutTag,	icSigLut16Type)) == NULL) 
					error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

				wo->inputChan = 3;
				wo->outputChan = 1;
				wo->inputEnt = 256;
				wo->clutPoints = b2ares;
				wo->outputEnt = 256;
				wo->allocate((icmBase *)wo);/* Allocate space */
			}
		}
	}

	/* shaper + matrix type tags */
	if (!isLut
	|| (   wr_icco->header->deviceClass == icSigDisplayClass
	    && wr_icco->header->pcs == icSigXYZData)) {

		/* Red, Green and Blue Colorant Tags: */
		{
			icmXYZArray *wor, *wog, *wob;
			if ((wor = (icmXYZArray *)wr_icco->add_tag(
			           wr_icco, icSigRedColorantTag, icSigXYZArrayType)) == NULL) 
				error("add_tag failed: %d, %s",rv,wr_icco->err);
			if ((wog = (icmXYZArray *)wr_icco->add_tag(
			           wr_icco, icSigGreenColorantTag, icSigXYZArrayType)) == NULL) 
				error("add_tag failed: %d, %s",rv,wr_icco->err);
			if ((wob = (icmXYZArray *)wr_icco->add_tag(
			           wr_icco, icSigBlueColorantTag, icSigXYZArrayType)) == NULL) 
				error("add_tag failed: %d, %s",rv,wr_icco->err);

			wor->size = wog->size = wob->size = 1;
			wor->allocate((icmBase *)wor);	/* Allocate space */
			wog->allocate((icmBase *)wog);
			wob->allocate((icmBase *)wob);

//			wor->data[0].X = 1.0; wor->data[0].Y = 0.0; wor->data[0].Z = 0.0;
//			wog->data[0].X = 0.0; wog->data[0].Y = 1.0; wog->data[0].Z = 0.0;
//			wob->data[0].X = 0.0; wob->data[0].Y = 0.0; wob->data[0].Z = 1.0;

			/* Setup deliberately wrong dummy values (channels rotated). */
			/* icxMatrix may override these later */
			wor->data[0].X = 0.143066; wor->data[0].Y = 0.060608; wor->data[0].Z = 0.714096;
			wog->data[0].X = 0.436066; wog->data[0].Y = 0.222488; wog->data[0].Z = 0.013916;
			wob->data[0].X = 0.385147; wob->data[0].Y = 0.716873; wob->data[0].Z = 0.097076;
		}

		/* Red, Green and Blue Tone Reproduction Curve Tags: */
		{
			icmCurve *wor, *wog, *wob;
			if ((wor = (icmCurve *)wr_icco->add_tag(
			           wr_icco, icSigRedTRCTag, icSigCurveType)) == NULL) 
				error("add_tag failed: %d, %s",rv,wr_icco->err);

			if (isShTRC) {	/* Make all TRCs shared */
				if ((wog = (icmCurve *)wr_icco->link_tag(
				           wr_icco, icSigGreenTRCTag, icSigRedTRCTag)) == NULL) 
					error("link_tag failed: %d, %s",rv,wr_icco->err);
				if ((wob = (icmCurve *)wr_icco->link_tag(
				           wr_icco, icSigBlueTRCTag, icSigRedTRCTag)) == NULL) 
					error("link_tag failed: %d, %s",rv,wr_icco->err);

			} else {		/* Else individual */
				if ((wog = (icmCurve *)wr_icco->add_tag(
				           wr_icco, icSigGreenTRCTag, icSigCurveType)) == NULL) 
					error("add_tag failed: %d, %s",rv,wr_icco->err);
				if ((wob = (icmCurve *)wr_icco->add_tag(
				           wr_icco, icSigBlueTRCTag, icSigCurveType)) == NULL) 
					error("add_tag failed: %d, %s",rv,wr_icco->err);
			}
	
			/* Shaper */
			if (ptype == prof_shamat || ptype == prof_sha1mat || ptype == prof_clutXYZ) {
				wor->flag = wog->flag = wob->flag = icmCurveSpec; 
				wor->size = wog->size = wob->size = 256;			/* Number of entries */
			} else {						/* Gamma */
				wor->flag = wog->flag = wob->flag = icmCurveGamma;
				wor->size = wog->size = wob->size = 1;				/* Must be 1 for gamma */
			}
			wor->allocate((icmBase *)wor);	/* Allocate space */
			wog->allocate((icmBase *)wog);
			wob->allocate((icmBase *)wob);

			/* Setup a default sRGB like curve. */
			/* icxMatrix will may override curve values later */
			for (i = 0; i < wor->size; i++) {
				wor->data[i] = 
				wog->data[i] = 
				wob->data[i] = gdv2dv(i/(wor->size-1.0));
			}

		}
	}
	/* .ti3 Sample data use to create profile, plus any calibration curves: */
	if (nocied == 0) {
		icmText *wo;
		char *crt;
		FILE *fp;

		if ((wo = (icmText *)wr_icco->add_tag(
		           wr_icco, icmMakeTag('t','a','r','g'), icSigTextType)) == NULL) 
			error("add_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

#if defined(O_BINARY) || defined(_O_BINARY)
	    if ((fp = fopen(in_name, "rb")) == NULL)
#else
	    if ((fp = fopen(in_name, "r")) == NULL)
#endif
			error("Unable to open input file '%s' for reading",in_name);

		if (fseek(fp, 0, SEEK_END))
			error("Unable to seek to end of file '%s'",in_name);
		wo->size = ftell(fp) + 1;		/* Size needed + null */
		wo->allocate((icmBase *)wo);	/* Allocate space */

		if (fseek(fp, 0, SEEK_SET))
			error("Unable to seek to end of file '%s'",in_name);

		if (fread(wo->data, 1, wo->size-1, fp) != wo->size-1)
			error("Failed to read file '%s'",in_name);
		wo->data[wo->size-1] = '\000';
		fclose(fp);

		/* Duplicate for compatibility */
		if (wr_icco->link_tag(
		         wr_icco, icmMakeTag('D','e','v','D'), icmMakeTag('t','a','r','g')) == NULL) 
			error("link_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
		if (wr_icco->link_tag(
		         wr_icco, icmMakeTag('C','I','E','D'), icmMakeTag('t','a','r','g')) == NULL) 
			error("link_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
	}

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

	if (verb)
		fprintf(verbo,"No of test patches = %d\n",npat);

	/* Allocate arrays to hold test patch input and output values */
	if ((tpat = (cow *)malloc(sizeof(cow) * npat)) == NULL)
		error("Malloc failed - tpat[]");

	/* Read in the CGATs fields */
	{
		int ti, ii, ci, mi, yi, ki;
		int Xi, Yi, Zi;

		/* Read the ink limit */
		if (oink != NULL && (ii = icg->find_kword(icg, 0, "TOTAL_INK_LIMIT")) >= 0) {
			double ilimit = -1;
			ilimit = atof(icg->t[0].kdata[ii]);
			if (ilimit > 1e-4 && ilimit <= 400.0 && oink->tlimit < 0.0) {
				oink->tlimit = ilimit/100.0;	/* Set requested ink limit */
			}
		}

		/* A sanity check */
		if (isAdditive && oink != NULL && oink->tlimit > 0 && oink->tlimit < (double)devchan) {
			warning("\n!!!!!!! Additive space has ink limit of %.0f%% set !!!!!!!\n"
			        ">> You probably don't want to do this, as it will limit the white point <<",oink->tlimit * 100.0);
		}

		/* Should targen/.ti3 file allow for BLACK_INK_LIMIT ?? */
		
		/* A problem here is that if the .ti3 is corrupted, then */
		/* often this results in the field type being "wrong", */
		/* rather than a more inteligable message. */

		if (devspace == icSigGrayData) {

			if (isAdditive) {
				if ((ci = icg->find_field(icg, 0, "GRAY_W")) < 0)
					error("Input file doesn't contain field GRAY_W");
				if (icg->t[0].ftype[ci] != r_t)
					error("Field GRAY_W is wrong type - corrupted file ?");
			} else {
				if ((ci = icg->find_field(icg, 0, "GRAY_K")) < 0)
					error("Input file doesn't contain field GRAY_K");
				if (icg->t[0].ftype[ci] != r_t)
					error("Field GRAY_K is wrong type - corrupted file ?");
			}
			mi = yi = ki = ci;

		} else if (devspace == icSigRgbData) {

			if ((ci = icg->find_field(icg, 0, "RGB_R")) < 0)
				error("Input file doesn't contain field RGB_R");
			if (icg->t[0].ftype[ci] != r_t)
				error("Field RGB_R is wrong type - corrupted file ?");
			if ((mi = icg->find_field(icg, 0, "RGB_G")) < 0)
				error("Input file doesn't contain field RGB_G");
			if (icg->t[0].ftype[mi] != r_t)
				error("Field RGB_G is wrong type - corrupted file ?");
			if ((yi = icg->find_field(icg, 0, "RGB_B")) < 0)
				error("Input file doesn't contain field RGB_B");
			if (icg->t[0].ftype[yi] != r_t)
				error("Field RGB_B is wrong type - corrupted file ?");
			ki = yi;

		} else if (devspace == icSigCmyData) {

			if ((ci = icg->find_field(icg, 0, "CMY_C")) < 0)
				error("Input file doesn't contain field CMY_C");
			if (icg->t[0].ftype[ci] != r_t)
				error("Field CMY_C is wrong type - corrupted file ?");
			if ((mi = icg->find_field(icg, 0, "CMY_M")) < 0)
				error("Input file doesn't contain field CMY_M");
			if (icg->t[0].ftype[mi] != r_t)
				error("Field CMY_M is wrong type - corrupted file ?");
			if ((yi = icg->find_field(icg, 0, "CMY_Y")) < 0)
				error("Input file doesn't contain field CMY_Y");
			if (icg->t[0].ftype[yi] != r_t)
				error("Field CMY_Y is wrong type - corrupted file ?");
			ki = yi;

		} else {	/* Assume CMYK */

			if ((ci = icg->find_field(icg, 0, "CMYK_C")) < 0)
				error("Input file doesn't contain field CMYK_C");
			if (icg->t[0].ftype[ci] != r_t)
				error("Field CMYK_C is wrong type - corrupted file ?",icg->t[0].ftype[ci],r_t);
			if ((mi = icg->find_field(icg, 0, "CMYK_M")) < 0)
				error("Input file doesn't contain field CMYK_M");
			if (icg->t[0].ftype[mi] != r_t)
				error("Field CMYK_M is wrong type - corrupted file ?");
			if ((yi = icg->find_field(icg, 0, "CMYK_Y")) < 0)
				error("Input file doesn't contain field CMYK_Y");
			if (icg->t[0].ftype[yi] != r_t)
				error("Field CMYK_Y is wrong type - corrupted file ?");
			if ((ki = icg->find_field(icg, 0, "CMYK_K")) < 0)
				error("Input file doesn't contain field CMYK_K");
			if (icg->t[0].ftype[ki] != r_t)
				error("Field CMYK_K is wrong type - corrupted file ?");
		}

		if (spec == 0) { 		/* Using instrument tristimulous value */

			if (isLab) {		/* Expect Lab */
				if ((Xi = icg->find_field(icg, 0, "LAB_L")) < 0)
					error("Input file doesn't contain field LAB_L");
				if (icg->t[0].ftype[Xi] != r_t)
					error("Field LAB_L is wrong type - corrupted file ?");
				if ((Yi = icg->find_field(icg, 0, "LAB_A")) < 0)
					error("Input file doesn't contain field LAB_A");
				if (icg->t[0].ftype[Yi] != r_t)
					error("Field LAB_A is wrong type - corrupted file ?");
				if ((Zi = icg->find_field(icg, 0, "LAB_B")) < 0)
					error("Input file doesn't contain field LAB_B");
				if (icg->t[0].ftype[Zi] != r_t)
					error("Field LAB_B is wrong type - corrupted file ?");

			} else { 		/* Expect XYZ */
				if ((Xi = icg->find_field(icg, 0, "XYZ_X")) < 0)
					error("Input file doesn't contain field XYZ_X");
				if (icg->t[0].ftype[Xi] != r_t)
					error("Field XYZ_X is wrong type - corrupted file ?");
				if ((Yi = icg->find_field(icg, 0, "XYZ_Y")) < 0)
					error("Input file doesn't contain field XYZ_Y");
				if (icg->t[0].ftype[Yi] != r_t)
					error("Field XYZ_Y is wrong type - corrupted file ?");
				if ((Zi = icg->find_field(icg, 0, "XYZ_Z")) < 0)
					error("Input file doesn't contain field XYZ_Z");
				if (icg->t[0].ftype[Zi] != r_t)
					error("Field XYZ_Z is wrong type - corrupted file ?");
			}

			for (i = 0; i < npat; i++) {
				tpat[i].w = 1.0;
				tpat[i].p[0] = *((double *)icg->t[0].fdata[i][ci]) / 100.0;
				tpat[i].p[1] = *((double *)icg->t[0].fdata[i][mi]) / 100.0;
				tpat[i].p[2] = *((double *)icg->t[0].fdata[i][yi]) / 100.0;
				tpat[i].p[3] = *((double *)icg->t[0].fdata[i][ki]) / 100.0;
				if (tpat[i].p[0] > 1.0
				 || tpat[i].p[1] > 1.0
				 || tpat[i].p[2] > 1.0
				 || tpat[i].p[3] > 1.0) {
					double bgst = 0.0;
					int j, bj = 0;
					for (j = 0; j < 4; j++) {
						if (tpat[i].p[j] > bgst) {
							bgst = tpat[i].p[j];
							bj = j;
						}
					}
					error("Device value field value exceeds 100.0 (%d:%d:%f) !",i,bj,bgst * 100.0);
				}
				tpat[i].v[0] = *((double *)icg->t[0].fdata[i][Xi]);
				tpat[i].v[1] = *((double *)icg->t[0].fdata[i][Yi]);
				tpat[i].v[2] = *((double *)icg->t[0].fdata[i][Zi]);
				/* For display, convert to measurement XYZ and re-normalise later */
				if (isdisp) {
					if (isLab) {
						icmLab2XYZ(&icmD50, tpat[i].v, tpat[i].v);
					} else if (isdnormed) {
						tpat[i].v[0] /= 100.0;		/* Normalise XYZ to range 0.0 - 1.0 */
						tpat[i].v[1] /= 100.0;
						tpat[i].v[2] /= 100.0;
					}
					if (isdnormed && dispLuminance > 0.0) {
						tpat[i].v[0] *= dispLuminance;
						tpat[i].v[1] *= dispLuminance;
						tpat[i].v[2] *= dispLuminance;
					}	/* else Hmm. */

				/* Convert to normalised 0.0 - 1.0 range in target PCS */
				} else {
					if (!isLab) {
						tpat[i].v[0] /= 100.0;		/* Normalise XYZ to range 0.0 - 1.0 */
						tpat[i].v[1] /= 100.0;
						tpat[i].v[2] /= 100.0;
					}
					if (!isLab && wantLab) { /* Convert test patch result XYZ to PCS (D50 Lab) */
						icmXYZ2Lab(&icmD50, tpat[i].v, tpat[i].v);
					} else if (isLab && !wantLab) {
						icmLab2XYZ(&icmD50, tpat[i].v, tpat[i].v);
					}
				}
			}
			if (isdisp)		/* Converted to XYZ for display */
				isLab = 0;

		} else { 		/* Using spectral data */
			int ii;
			xspect sp;
			char buf[100];
			int  spi[XSPECT_MAX_BANDS];	/* CGATS indexes for each wavelength */
			xsp2cie *sp2cie;	/* Spectral conversion object */

			if ((ii = icg->find_kword(icg, 0, "SPECTRAL_BANDS")) < 0)
				error ("Input file doesn't contain keyword SPECTRAL_BANDS");
			sp.spec_n = atoi(icg->t[0].kdata[ii]);
			if ((ii = icg->find_kword(icg, 0, "SPECTRAL_START_NM")) < 0)
				error ("Input file doesn't contain keyword SPECTRAL_START_NM");
			sp.spec_wl_short = atof(icg->t[0].kdata[ii]);
			if ((ii = icg->find_kword(icg, 0, "SPECTRAL_END_NM")) < 0)
				error ("Input file doesn't contain keyword SPECTRAL_END_NM");
			sp.spec_wl_long = atof(icg->t[0].kdata[ii]);
			if (isdisp) {				/* convert to measurement values - re-norm later */
				sp.norm = 1.0;
				if (isdnormed)
					sp.norm *= 100.0;
				if (isdnormed && dispLuminance > 0.0)
					sp.norm /= dispLuminance;
			} else
				sp.norm = 100.0;		/* Convert to 0.0 - 1.0 ref/trans range */

			/* 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] = icg->find_field(icg, 0, buf)) < 0)
					error("Input file doesn't contain field %s",buf);

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

			if (isdisp) {
				illum = icxIT_none;		/* Displays are assumed to be self luminous */
				cust_illum = NULL;
			}

			/* If CIE calculation illuminant is not standard, compute it's white point, */
			/* in case we are going to create 'chad' tag. */
			if (!isdisp && illum != icxIT_D50) {
				ill_wp = _ill_wp;
	
				/* Compute normalised XYZ of illuminant */
				if (icx_ill_sp2XYZ(ill_wp, obType, custObserver, illum, 0.0, cust_illum, 0) != 0) 
					error("icx_ill_sp2XYZ returned error");
			}

			/* Create a spectral conversion object */
			if ((sp2cie = new_xsp2cie(illum, cust_illum, obType, custObserver,
			                          wantLab ? icSigLabData : icSigXYZData, icxClamp)) == NULL)
				error("Creation of spectral conversion object failed");

			/* If Fluorescent Whitening Agent compensation is enabled */
			if (!isdisp && fwacomp) {
				double nw = 0.0;		/* Number of media white patches */
				xspect mwsp;			/* Medium spectrum */
				instType itype;			/* Spectral instrument type */
				xspect insp;			/* Instrument illuminant */
				xspect tinsp, *tinspp = NULL;	/* Target/simulated instrument illuminant */

				mwsp = sp;		/* Struct copy */

	 			if ((ti = icg->find_kword(icg, 0, "TARGET_INSTRUMENT")) < 0)
					error ("Can't find target instrument needed for FWA compensation");

				if ((itype = inst_enum(icg->t[0].kdata[ti])) == instUnknown)
					error ("Unrecognised target instrument '%s'", icg->t[0].kdata[ti]);

				if (inst_illuminant(&insp, itype) != 0)
					error ("Instrument doesn't have an FWA illuminent");

				/* Find the media white spectral reflectance */
				for (j = 0; j < mwsp.spec_n; j++)
					mwsp.spec[j] = 0.0;

				/* Compute the mean of all the media white patches */
				for (i = 0; i < npat; i++) {
					int use = 0;

					if (devspace == icSigGrayData) {
						if (isAdditive) {
							if (*((double *)icg->t[0].fdata[i][ci]) > (100.0 - 0.1))
								use = 1;
						} else {
							if (*((double *)icg->t[0].fdata[i][ci]) < 0.1)
								use = 1;
						}
					} else if (devspace == icSigRgbData) {
						if (*((double *)icg->t[0].fdata[i][ci]) > (100.0 - 0.1)
						 && *((double *)icg->t[0].fdata[i][mi]) > (100.0 - 0.1)
						 && *((double *)icg->t[0].fdata[i][yi]) > (100.0 - 0.1))
							use = 1;
					} else if (devspace == icSigCmyData) {
						if (*((double *)icg->t[0].fdata[i][ci]) < 0.1 
						 && *((double *)icg->t[0].fdata[i][mi]) < 0.1 
						 && *((double *)icg->t[0].fdata[i][yi]) < 0.1)
							use = 1;
					} else {	/* Assume CMYK */

						if (*((double *)icg->t[0].fdata[i][ci]) < 0.1
						 && *((double *)icg->t[0].fdata[i][mi]) < 0.1
						 && *((double *)icg->t[0].fdata[i][yi]) < 0.1
						 && *((double *)icg->t[0].fdata[i][ki]) < 0.1) {
							use = 1;
						}
					}

					if (use) {
						/* Read the spectral values for this patch */
						for (j = 0; j < mwsp.spec_n; j++) {
							mwsp.spec[j] += *((double *)icg->t[0].fdata[i][spi[j]]);
						}
						nw++;
					}
				}

				if (nw == 0.0) {
					warning("Can't find a media white patch to init FWA");

					/* Track the maximum reflectance for any band to determine white. */
					/* This might give bogus results if there is no white patch... */
					for (i = 0; i < npat; i++) {
						for (j = 0; j < mwsp.spec_n; j++) {
							double rv = *((double *)icg->t[0].fdata[i][spi[j]]);
							if (rv > mwsp.spec[j])
								mwsp.spec[j] = rv;
						}
					}
					nw++;
				}
				for (j = 0; j < mwsp.spec_n; j++) {
					mwsp.spec[j] /= nw;	/* Compute average */
				}

				/* If the simulated instrument illumination is */
				/* not the observer/final illuminant */
				if (tillum != icxIT_none) {
					if (tillum == icxIT_custom)
						tinspp = cust_tillum;
					else {
						tinspp = &tinsp;
						if (standardIlluminant(tinspp, tillum, 0.0)) {
							error("simulated inst. illum. not recognised");
						}
					}
				}

				/* (Note that sp and mwsp.norm is set to 100.0) */
				if (sp2cie->set_fwa(sp2cie, &insp, tinspp, &mwsp)) 
					error ("Set FWA on sp2cie failed");

				if (verb) {
					double FWAc;
					sp2cie->get_fwa_info(sp2cie, &FWAc);
					fprintf(verbo,"FWA content = %f\n",FWAc);
				}
			}

			for (i = 0; i < npat; i++) {
				tpat[i].w = 1.0;
				tpat[i].p[0] = *((double *)icg->t[0].fdata[i][ci]) / 100.0;
				tpat[i].p[1] = *((double *)icg->t[0].fdata[i][mi]) / 100.0;
				tpat[i].p[2] = *((double *)icg->t[0].fdata[i][yi]) / 100.0;
				tpat[i].p[3] = *((double *)icg->t[0].fdata[i][ki]) / 100.0;

				if (tpat[i].p[0] > 1.0
				 || tpat[i].p[1] > 1.0
				 || tpat[i].p[2] > 1.0
				 || tpat[i].p[3] > 1.0) {
					error("Device value field value exceeds 100.0 !");
				}

				/* Read the spectral values for this patch */
				for (j = 0; j < sp.spec_n; j++) {
					sp.spec[j] = *((double *)icg->t[0].fdata[i][spi[j]]);
				}

				/* Convert it to CIE space */
				sp2cie->convert(sp2cie, tpat[i].v, &sp);
			}

			sp2cie->del(sp2cie);		/* Done with this */
		}

		/* Normalize display values to Y = 1.0 */
		if (isdisp) {
			double scale = -1e6;

			if (isLab)		/* assert */
				error("Internal - display values must be XYZ for normalisation");

			/* Locate max Y */
			for (i = 0; i < npat; i++) {
				if (tpat[i].v[1] > scale)
					scale = tpat[i].v[1];
			}
			
			scale = 1.0/scale;

			for (i = 0; i < npat; i++) {
				tpat[i].v[0] *= scale;
				tpat[i].v[1] *= scale;
				tpat[i].v[2] *= scale;

				if (wantLab)
					icmXYZ2Lab(&icmD50, tpat[i].v, tpat[i].v);
			}

			/* Change Black Point Override XYZ from reading to normalised */
//			if (bpo != NULL) {
//				bpo[0] *= scale;
//				bpo[1] *= scale;
//				bpo[2] *= scale;
//			}
		}
		isLab = wantLab;		/* We now have what we want */

	}	/* End of reading in CGATs file */

	/* If we have been given an illuminant white point, set this in the */
	/* ICC profile so that it can save a 'chad' tag if */
	/* ARGYLL_CREATE_OUTPUT_PROFILE_WITH_CHAD is set. */
	if (ill_wp != NULL)
		wr_icco->set_illum(wr_icco, ill_wp);

#ifdef EMPH_DISP_BLACKPOINT
	/* Add extra weighting to sample points near black for additive display. */
	/* Not sure what the justification is, apart from making the black */
	/* point more accurately modelled. Does this reflect an underlying */
	/* problem with rspl in perceptual space ? Or is it a reflection */
	/* of the possible "scaled" viewing mode of additive display */
	/* usage ? What about print and scan ?? */
	if (isdisp && (imask == ICX_W || imask == ICX_RGB)) {
		double minL = 1e6;

		/* Locate the lowest L* value */
		for (i = 0; i < npat; i++) {
			double lab[3];

			if (wantLab)
				lab[0] = tpat[i].v[0];
			else
				icmXYZ2Lab(&icmD50, lab, tpat[i].v);
			if (lab[0] < minL)
				minL = lab[0];
		}
//printf("~1 final minL = %f\n",minL);

		/* Compute weighting factor */
		/* (Hard to guess what numbers to put in here.. */
		for (i = 0; i < npat; i++) {
			double lab[3], L;
			if (wantLab) {
				L = tpat[i].v[0];
			} else {
				icmXYZ2Lab(&icmD50, lab, tpat[i].v);
				L = lab[0];
			}
			L -= minL;
			L /= 20.0;			/* Just weight over 20 L* range */
			if (L > 1.0)
				continue;
			L = 1.0 + 19.0 * pow(1.0 - L, 3.0); 
			tpat[i].w *= L;
//printf("~1 pat %d: %f %f %f weight %f\n", i,tpat[i].p[0], tpat[i].p[1], tpat[i].p[2], tpat[i].w);
		}
	}
#endif /* EMPH_DISP_BLACKPOINT */

#ifdef IGNORE_DISP_ZEROS
	/* If a display has a very good black, and the instrument is not sensitive */
	/* enough to properly measure the near black values and returns 0.0, */
	/* then the resulting profile will tend to incorrectly boost the */
	/* dark shadows. A heuristic to counteract this problem is to */
	/* ignore any readings that have any value <= 0.0 except */
	/* those for device black. */ 
	
	if (isdisp && (imask == ICX_W || imask == ICX_RGB)) {
		int noomit = 0;

		for (i = 0; i < npat; i++) {
			double xyz[3], L;
			if (wantLab) 
				icmLab2XYZ(&icmD50, xyz, tpat[i].v);
			else
				icmCpy3(xyz, tpat[i].v);

			/* Don't ignore device zero point */
			if (imask == ICX_W) {
				if (tpat[i].p[0] <= 0.0)
					continue;
			} else {
				if (tpat[i].p[0] <= 0.0
				 && tpat[i].p[1] <= 0.0
				 && tpat[i].p[2] <= 0.0)
					continue;
			}
//printf("~1 pat %d: XYZ %f %f %f\n", i, xyz[0], xyz[1], xyz[2]);
			/* Ignore any XYZ that is zero */
			if (xyz[0] <= 0.0 || xyz[1] <= 0.0 || xyz[2] <= 0.0) {
				tpat[i].w = 0.0;
				noomit++;
//printf("~1  ignored\n");
			}
		}
		if (verb)
			fprintf(verbo,"Omitted %d zero measurements\n",noomit);
	}
#endif /* IGNORE_DISP_ZEROS */

	if (isLut) {
		xicc *wr_xicc;			/* extention object */
		icxLuBase *AtoB;		/* AtoB ixcLu */

		/* Create A2B clut */
		{
			int flags = 0;

			/* Wrap with an expanded icc */
			if ((wr_xicc = new_xicc(wr_icco)) == NULL)
				error("Creation of xicc failed");
		
			flags |= ICX_CLIP_NEAREST;		/* This will avoid clip caused rev setup */
											/* which we don't need when creating A2B */

			if (noisluts)
				flags |= ICX_NO_IN_SHP_LUTS;

			if (noipluts)
				flags |= ICX_NO_IN_POS_LUTS;

			if (nooluts)
				flags |= ICX_NO_OUT_LUTS;

			if (clipprims)
				flags |= ICX_CLIP_WB;
			
			if (verb)
				flags |= ICX_VERBOSE;

			flags |= ICX_SET_WHITE | ICX_SET_BLACK; 		/* Compute & use white & black */

			/* Setup Device -> PCS conversion (Fwd) object from scattered data. */
			if ((AtoB = wr_xicc->set_luobj(
			               wr_xicc, icmFwd, !allintents ? icmDefaultIntent : icRelativeColorimetric,
			               icmLuOrdNorm,
#ifdef USE_EXTRA_FITTING
			               ICX_EXTRA_FIT |
#endif
#ifdef USE_2PASSSMTH
			               ICX_2PASSSMTH |
#endif
			               flags,
			               npat, npat, tpat, NULL, dispLuminance, wpscale,
//				           bpo,
				           smooth, avgdev, demph, 
			               NULL, oink, cal, iquality)) == NULL)
				error("%d, %s",wr_xicc->errc, wr_xicc->err);

			AtoB->del(AtoB);		/* Done with lookup */
		}

		/* Create B2A clut */
		{
			icc *src_icco = NULL;
			xicc *src_xicc = NULL;	/* Source profile */
			icxViewCond ivc;		/* Input Viewing Condition for CAM */
			icxViewCond ovc;		/* Output Viewing Condition for CAM */
			icmFile *abs_fp[3] = { NULL, NULL, NULL };	/* Abstract profile transform: */
			icc *abs_icc[3] = { NULL, NULL, NULL };
			xicc *abs_xicc[3] = { NULL, NULL, NULL };
			icmLut *wo[3];

			out_b2a_callback cx;

			if (verb)
				printf("Setting up B to A table lookup\n");

#ifdef FILTER_B2ACLIP
			cx.filter = 1;
			cx.filter_thr = FILTER_THR_DE;
			cx.filter_ratio = FILTER_MAX_RAD/FILTER_MAX_DE;
			cx.filter_maxrad = FILTER_MAX_RAD;
#else
			cx.filter = 0;
			cx.filter_thr = 100.0;
			cx.filter_ratio = 0.0;
			cx.filter_maxrad = 0.0;
#endif

			if (ipname != NULL) {		/* There is a source profile to determine gamut mapping */

				/* Open up the profile for reading */
				if ((src_icco = read_embedded_icc(ipname)) == NULL)
					error ("Can't open file '%s'",ipname);

				/* Wrap with an expanded icc */
				if ((src_xicc = new_xicc(src_icco)) == NULL)
					error ("Creation of src_xicc failed");
			}

			/* Figure out the final src & dst viewing conditions */
			for (i = 0; i < 2; i++) {
				xicc *x;
				icxViewCond *v, *vc;
				int es;
				double *wp = NULL;
		
				if (i == 0) {			/* Input */
					v = ivc_p;			/* Override parameters */
					es = ivc_e;
					vc = &ivc;			/* Target parameters */
					x = src_xicc;
				} else {				/* Output */
					v = ovc_p;			/* Override parameters */
					es = ovc_e;
					vc = &ovc;			/* Target parameters */
					x = wr_xicc;
				}

				if (x == NULL)
					wp = icmD50_ary3;	/* So xicc_enum_viewcond will work without xicc */
				
				/* Set the default */
				xicc_enum_viewcond(x, vc, -1, NULL, 0, wp);
		
				/* Override the viewing conditions */
				if (es >= 0)
					if (xicc_enum_viewcond(x, vc, es, NULL, 0, wp) == -2)
						error ("%d, %s",x->errc, x->err);
				if (v->Ev >= 0)
					vc->Ev = v->Ev;
				if (v->Wxyz[0] >= 0.0 && v->Wxyz[1] > 0.0 && v->Wxyz[2] >= 0.0) {
					/* Normalise XYZ to current media white */
					vc->Wxyz[0] = v->Wxyz[0]/v->Wxyz[1] * vc->Wxyz[1];
					vc->Wxyz[2] = v->Wxyz[2]/v->Wxyz[1] * vc->Wxyz[1];
				} 
				if (v->Wxyz[0] >= 0.0 && v->Wxyz[1] >= 0.0 && v->Wxyz[2] < 0.0) {
					/* Convert Yxy to XYZ */
					double x = v->Wxyz[0];
					double y = v->Wxyz[1];	/* If Y == 1.0, then X+Y+Z = 1/y */
					double z = 1.0 - x - y;
					vc->Wxyz[0] = x/y * vc->Wxyz[1];
					vc->Wxyz[2] = z/y * vc->Wxyz[1];
				}
				if (v->La >= 0.0)
					vc->La = v->La;
				if (v->Yb >= 0.0)
					vc->Yb = v->Yb;
				if (v->Lv >= 0.0)
					vc->Lv = v->Lv;
				if (v->Yf >= 0.0)
					vc->Yf = v->Yf;
				if (v->Yg >= 0.0)
					vc->Yg = v->Yg;
				if (v->Gxyz[0] >= 0.0 && v->Gxyz[1] > 0.0 && v->Gxyz[2] >= 0.0) {
					/* Normalise XYZ */
					vc->Gxyz[0] = v->Gxyz[0]/v->Gxyz[1] * vc->Gxyz[1];
					vc->Gxyz[2] = v->Gxyz[2]/v->Gxyz[1] * vc->Gxyz[1];
				}
				if (v->Gxyz[0] >= 0.0 && v->Gxyz[1] >= 0.0 && v->Gxyz[2] < 0.0) {
					/* Convert Yxy to XYZ */
					double x = v->Gxyz[0];
					double y = v->Gxyz[1];	/* If Y == 1.0, then X+Y+Z = 1/y */
					double z = 1.0 - x - y;
					vc->Gxyz[0] = x/y * vc->Gxyz[1];
					vc->Gxyz[2] = z/y * vc->Gxyz[1];
				}
				if (v->hkscale >= 0.0)
					vc->hkscale = v->hkscale;
				if (v->mtaf >= 0.0)
					vc->mtaf = v->mtaf;
				if (v->Wxyz2[0] >= 0.0 && v->Wxyz2[1] > 0.0 && v->Wxyz2[2] >= 0.0) {
					/* Normalise XYZ */
					vc->Wxyz2[0] = v->Wxyz2[0]/v->Wxyz2[1] * vc->Wxyz2[1];
					vc->Wxyz2[2] = v->Wxyz2[2]/v->Wxyz2[1] * vc->Wxyz2[1];
				}
				if (v->Wxyz2[0] >= 0.0 && v->Wxyz2[1] >= 0.0 && v->Wxyz2[2] < 0.0) {
					/* Convert Yxy to XYZ */
					double x = v->Wxyz2[0];
					double y = v->Wxyz2[1];	/* If Y == 1.0, then X+Y+Z = 1/y */
					double z = 1.0 - x - y;
					vc->Wxyz2[0] = x/y * vc->Wxyz2[1];
					vc->Wxyz2[2] = z/y * vc->Wxyz2[1];
				}
			}

			/* Get a suitable forward conversion object to invert. */
			/* By creating a separate one to the one created using scattered data, */
			/* we get the chance to set ICX_CAM_CLIP. */
			{
				int flags = 0;
	
				if (verb)
					flags |= ICX_VERBOSE;
	
#ifdef NEVER	/* [Und] */
				/* Vector is somewhat flakey (some CuspMap based vectors don't 100%
				   intersect the gamut, having to fall back on nearest), and the result
				   is rather poor in saturation for green and yellow in particular. */ 
				flags |= ICX_CLIP_VECTOR;
				warning("!!!! ICX_CLIP_VECTOR in profout.c is on !!!!");
#else
				flags |= ICX_CLIP_NEAREST;
#endif

#ifdef USE_CAM_CLIP_OPT
				flags |= ICX_CAM_CLIP;			/* Clip in CAM Jab space rather than Lab */
#else
				warning("!!!! USE_CAM_CLIP_OPT in profout.c is off !!!!");
#endif

				if ((AtoB = wr_xicc->get_luobj(wr_xicc, flags, icmFwd,
				                  !allintents ? icmDefaultIntent : icRelativeColorimetric,
				                  wantLab ? icSigLabData : icSigXYZData,
                                  icmLuOrdNorm, &ovc, oink)) == NULL)
					error ("%d, %s",wr_xicc->errc, wr_xicc->err);
			}

			/* setup context ready for B2A table setting */
			cx.verb = verb;
			cx.pcsspace = wantLab ? icSigLabData : icSigXYZData;
#ifdef NO_B2A_PCS_CURVES
			cx.noPCScurves = 1;		/* Don't use PCS curves */
#else
			cx.noPCScurves = 0;
#endif
			cx.devspace = devspace;
			cx.x = (icxLuLut *)AtoB;		/* A2B icxLuLut created from scattered data */

			cx.ixp = NULL;		/* Perceptual PCS to CAM conversion */
			cx.ox = NULL;		/* CAM to PCS conversion */
			cx.icam = NULL;
			cx.mapsp = 0;
			cx.pmap = NULL;		/* perceptual gamut map */
			cx.smap = NULL;		/* Saturation gamut map */

			cx.abs_luo[0] = cx.abs_luo[1] = cx.abs_luo[2] = NULL;
			cx.xyzscale[0] = 1.0;
			cx.xyzscale[1] = 1.0;
			cx.gam = NULL;
			cx.wantLab = wantLab;			/* Copy PCS flag over */

			/* Determine the number of tables */
			cx.ntables = 1;
			if (src_xicc || gcompr) {	/* Creating separate perceptual and Saturation tables */
				cx.ntables = 2;
				if (sepsat)
					cx.ntables = 3;
			}

			/* Open up the abstract profile if supplied, and setup luo */
			for (i = 0; i < cx.ntables; i++) {
				if (absname[i] != NULL && cx.abs_luo[i] == NULL) {

					if ((abs_fp[i] = new_icmFileStd_name(absname[i],"r")) == NULL)
						error ("Can't open abstract profile file '%s'",absname[i]);
					
					if ((abs_icc[i] = new_icc()) == NULL)
						error ("Creation of Abstract profile ICC object failed");
			
					/* Read header etc. */
					if ((rv = abs_icc[i]->read(abs_icc[i],abs_fp[i],0)) != 0)
						error ("%d, %s",rv,abs_icc[i]->err);
			
					if (abs_icc[i]->header->deviceClass != icSigAbstractClass)
						error("Abstract profile isn't an abstract profile");
			
					/* Take intended abstract intent from profile itself */
					if ((cx.abs_intent[i] = abs_icc[i]->header->renderingIntent) != icAbsoluteColorimetric)
						cx.abs_intent[i] = icRelativeColorimetric;
			
					/* Wrap with an expanded icc */
					if ((abs_xicc[i] = new_xicc(abs_icc[i])) == NULL)
						error ("Creation of abstract profile xicc failed");
	
					/* The abstract profile intent is assumed to determine how it gets applied. */
					/* Make abstract PCS XYZ if icAbsoluteColorimetric is needed. */
					if ((cx.abs_luo[i] = abs_xicc[i]->get_luobj(abs_xicc[i], ICX_CLIP_NEAREST, icmFwd,
					                  cx.abs_intent[i],
				        (cx.pcsspace == icSigLabData && cx.abs_intent[i] == icRelativeColorimetric)
						             ? icSigLabData : icSigXYZData,
						icmLuOrdNorm, NULL, NULL)) == NULL)
						error ("%d, %s",abs_icc[i]->errc, abs_icc[i]->err);

					/* If the same abstract profile is used in the other tables, */
					/* duplicate the transform pointer */
					for (j = i; j < cx.ntables; j++) {
						if (absname[i] == absname[j]) {
							cx.abs_intent[j] = cx.abs_intent[i];
							cx.abs_luo[j] = cx.abs_luo[i];
							abs_xicc[j] = abs_xicc[i];
							abs_icc[j] = abs_icc[i];
							abs_fp[j] = abs_fp[i];
							if (verb)
								printf("Applying %s abstract profile '%s' to %s table\n",
								i == 0 ? "first" : i == 1 ? "second" : "third",
								absname[i], 
								j == 0 ? "colorimetric" : j == 1 ? "perceptual" : "saturation");
						}
					}
				}
			}
			
			if (!allintents) {	/* Only B2A0, no intent */
				if ((wo[0] = (icmLut *)wr_icco->read_tag(
				           wr_icco, icSigBToA0Tag)) == NULL) 
					error("read_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

			} else {		/* All 3 intent tables */
				/* Intent 1 = relative colorimetric */
				if ((wo[0] = (icmLut *)wr_icco->read_tag(
				           wr_icco, icSigBToA1Tag)) == NULL) 
					error("read_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

				if (src_xicc || gcompr) {	/* Creating separate perceptual and Saturation tables */
					icRenderingIntent intentp;	/* Gamut mapping space perceptual selection */
					icRenderingIntent intents;	/* Gamut mapping space saturation selection */
					icRenderingIntent intento;	/* Gamut mapping space output selection */
					gamut *csgamp = NULL;		/* Incoming colorspace perceptual gamut */
					gamut *csgams = NULL;		/* Incoming colorspace saturation gamut */
					gamut *igam = NULL;			/* Incoming image gamut */
					gamut *ogam = NULL;			/* Destination colorspace gamut */
					gamut *ihgam = NULL;		/* Input space general compression hull gamut */
					double gres;				/* Gamut surface feature resolution */
					int    mapres;				/* Mapping rspl resolution */
			
					if (verb)
						printf("Creating Gamut Mapping\n");
			
					/* Gamut mapping will extend given grid res to encompas */
					/* source gamut by a margin of 1.20. */
					if (oquality == 3) {			/* Ultra High */
			  	 		gres = 7.0;
			  	 		mapres = 49;
					} else if (oquality == 2) {	/* High */
			  	 		gres = 8.0;
			  	 		mapres = 39;
					} else if (oquality == 1) {	/* Medium */
			  	 		gres = 10.0;
			  	 		mapres = 29;
					} else if (oquality == 0) {	/* Low quality */
			  	 		gres = 12.0;
			  	 		mapres = 19;
					} else {					/* Extremely low */
			  	 		gres = 14.0;
			  	 		mapres = 11;
					}

					/* We could lift this restriction by allowing for separate */
					/* cx.ix and cx.ox for each intent, but that would be expensive!. */
					if (sepsat && (pgmi->usecas & 0xff) != (sgmi->usecas & 0xff))
						error("Can't handle percept and sat table intents with different CAM spaces");

					/* If apperance space perceptual table gamut mapping */
					if ((pgmi->usecas & 0xff) >= 0x2) {
						intentp = noptop ? icxAppearance : icxPerceptualAppearance;
					} else {
						if ((pgmi->usecas & 0xff) == 0x0)
							intentp = noptop ? icRelativeColorimetric : icPerceptual;
						else	/* pgmi->usecas & 0xff == 0x1 */
							intentp = noptop ? icAbsoluteColorimetric : icmAbsolutePerceptual;
					}

					if (sepsat) {

						/* If apperance space saturation table gamut mapping */
						if ((sgmi->usecas & 0xff) >= 0x2) {
							intents = nostos ? icxAppearance : icxSaturationAppearance;
						} else {
							if ((sgmi->usecas & 0xff) == 0x0)
								intents = nostos ? icRelativeColorimetric : icSaturation;
							else
								intents = nostos ? icAbsoluteColorimetric : icmAbsoluteSaturation;
						}
					}

					if ((pgmi->usecas & 0xff) >= 0x2) {
						intento = icxAppearance;
					} else {
						if ((pgmi->usecas & 0xff) == 0x0)
							intento = icRelativeColorimetric;
						else	/* pgmi->usecas & 0xff == 0x1 */
							intento = icAbsoluteColorimetric;
					}

					if ((pgmi->usecas & 0xff) == 0x3) {		/* Abs. appearance */
						double mxw;
						intentp = intents = intento = icxAbsAppearance;

						/* Make absolute common white point average between the two */
						ivc.Wxyz[0] = 0.5 * (ivc.Wxyz[0] + ovc.Wxyz[0]);
						ivc.Wxyz[1] = 0.5 * (ivc.Wxyz[1] + ovc.Wxyz[1]);
						ivc.Wxyz[2] = 0.5 * (ivc.Wxyz[2] + ovc.Wxyz[2]);
		
						/* And scale it's Y to be equal to 1.0 */
						mxw = 1.0/ivc.Wxyz[1];
						ivc.Wxyz[0] *= mxw;
						ivc.Wxyz[1] *= mxw;
						ivc.Wxyz[2] *= mxw;
		
						/* set output view conditions the same as the input */
						ovc = ivc;		/* Structure copy */
					}

					/* Unlike icclink, we've not provided a way for the user */
					/* to set the source profile ink limit, so estimate it */
					/* from the profile */
					if (src_xicc != NULL) {
						icxDefaultLimits(src_xicc, &iink.tlimit, iink.tlimit,
						                           &iink.klimit, iink.klimit);

						/* Get lookup object simply for fwd_relpcs_outpcs() */
						/* and perceptual input gamut shell creation. */
						/* Note that the intent=Appearance will trigger Jab CAM, */
						/* overriding icSigLabData.. */
#ifdef NEVER
						printf("~1 input space flags = 0x%x\n",ICX_CLIP_NEAREST);
						printf("~1 input space intent = %s\n",icx2str(icmRenderingIntent,intentp));
						printf("~1 input space pcs = %s\n",icx2str(icmColorSpaceSignature,icSigLabData));
						printf("~1 input space viewing conditions =\n"); xicc_dump_viewcond(&ivc);
						printf("~1 input space inking =\n"); xicc_dump_inking(&iink);
#endif
						if ((cx.ixp = src_xicc->get_luobj(src_xicc,ICX_CLIP_NEAREST
						       , icmFwd, intentp, icSigLabData, icmLuOrdNorm, &ivc, &iink)) == NULL)
							error ("%d, %s",src_xicc->errc, src_xicc->err);
	
						/* Create the source colorspace gamut surface */
						if (verb)
							printf(" Finding Source Colorspace Perceptual Gamut\n");
				
						if ((csgamp = cx.ixp->get_gamut(cx.ixp, gres)) == NULL)
							error ("%d, %s",src_xicc->errc, src_xicc->err);
				
						if (sepsat) {
							icxLuBase *ixs = NULL;	/* Source profile saturation lookup for gamut */
							/* Get lookup object for saturation input gamut shell creation */
							/* Note that the intent=Appearance will trigger Jab CAM, */
							/* overriding icSigLabData.. */
							if ((ixs = src_xicc->get_luobj(src_xicc, ICX_CLIP_NEAREST
							   , icmFwd, intents, icSigLabData, icmLuOrdNorm, &ivc, &iink)) == NULL)
							error ("%d, %s",src_xicc->errc, src_xicc->err);
	
							if (verb)
								printf(" Finding Source Colorspace Saturation Gamut\n");
	
							if ((csgams = ixs->get_gamut(ixs, gres)) == NULL)
								error ("%d, %s",src_xicc->errc, src_xicc->err);
							ixs->del(ixs);
						}
					}
	
					/* Read image source gamut if provided */
					/* Optional source gamut - ie. from an images, */
					/* ignored if gcompr > 0 */
					if (sgname != NULL && gcompr > 0)
						warning("Image gamut ignored for general gamut compression");
					if (sgname != NULL && gcompr == 0) {
						int isJab = 0;
			
						if ((pgmi->usecas & 0xff) >= 0x2)
							isJab = 1;

						if (verb)
							printf(" Loading Image Source Gamut '%s'\n",sgname);
			
						igam = new_gamut(gres, 0, 0);
			
						if (igam->read_gam(igam, sgname))
							error("Reading source gamut '%s' failed",sgname);

						if (igam->getisjab(igam) != isJab) {
							/* Should really convert to/from Jab here! */
							warning("Image gamut is wrong colorspace for gamut mapping (Lab != Jab)");
							/* This will actually error in the gamut mapping code */
							/* Note that we're not checking relative/absolute colorspace here. */
							/* At the moment it's up to the user to get this right. */
						}
					}
	
					/* Get lookup object for bwd_outpcs_relpcs(), */
					/* and output gamut shell creation */
					/* Note that the intent=Appearance will trigger Jab CAM, */
					/* overriding icSigLabData.. */
					if ((cx.ox = wr_xicc->get_luobj(wr_xicc, ICX_CLIP_NEAREST
						   , icmFwd, intento,
					                  icSigLabData, icmLuOrdNorm, &ovc, oink)) == NULL)
						error ("%d, %s",wr_xicc->errc, wr_xicc->err);

					/* Creat the destination gamut surface */
					if (verb)
						printf(" Finding Destination Gamut\n");
			
					if ((ogam = cx.ox->get_gamut(cx.ox, gres)) == NULL)
						error ("%d, %s",wr_xicc->errc, wr_xicc->err);
			
					/* General compression rather than source gamut */
					if (gcompr > 0) {
						/* Create alternative to ixp for conv. to Gamut maping space. */
						if (cx.ixp == NULL) {
							double wp[3], bp[3] = { 0.0, 0.0, 0.0 };
							cx.mapsp = xiccIsIntentJab(intentp) ? icxSigJabData : icSigLabData;
	
							if (cx.mapsp == icxSigJabData) {
								cx.icam = new_icxcam(cam_default);
								cx.icam->set_view(cx.icam, ivc.Ev, ivc.Wxyz, ivc.La, ivc.Yb, ivc.Lv,
								                           ivc.Yf, ivc.Yg, ivc.Gxyz,
								                           XICC_USE_HK, ivc.hkscale,
								                           ivc.mtaf, ivc.Wxyz2);
							}

							/* Create a dumy source gamut, used by new_gammap to create */
							/* the L mapping */
							if ((csgamp = new_gamut(0.0, cx.mapsp == icxSigJabData, 0)) == NULL)
								error ("Creating fake input gamut failed");

							if (cx.mapsp == icxSigJabData) {
								cx.icam->XYZ_to_cam(cx.icam, wp, icmD50_ary3);
								cx.icam->XYZ_to_cam(cx.icam, bp, bp);
							} else {
								icmXYZ2Lab(&icmD50, bp, icmD50_ary3);
								icmXYZ2Lab(&icmD50, bp, bp);
							}
							csgamp->setwb(csgamp, wp, bp, bp);
							csgams = csgamp;
						}
	
						/* Expand destination gamut cylindrically to make source hull gamut. */
						if (verb)
							printf(" Creating fake source gamut with compression %d%%\n",gcompr);
						if ((ihgam = new_gamut(1.0, 0, 0)) == NULL
						 || ihgam->exp_cyl(ihgam, ogam, (100.0 + gcompr)/100.0)) {
							error ("Creating expanded input failed");
						}
					}

					if (verb)
						printf(" Creating Gamut match\n");

					/* The real range of Lab 0..100,-128..128,1-28..128 cube */
					/* when mapped to CAM is ridiculously large (ie. */
					/* 0..100, -288..265, -112..533), so we don't attempt to */
					/* set a gamut mapping grid range based on this. Instead */
					/* rely on the gamut map code to set a reasonable grid range */
					/* around the source gamut, and to cope reasonably with */
					/* values outside the grid range. */

					/* setup perceptual gamut mapping */
					cx.pmap = new_gammap(verb, csgamp, igam, ogam, pgmi,
					                     ihgam, 0, 0, 0, 0, mapres,
					                     NULL, NULL, gamdiag ? "gammap_p.wrl" : NULL
					);
					if (cx.pmap == NULL)
						error ("Failed to make perceptual gamut map transform");

					/* Intent 0 = perceptual */
					if ((wo[1] = (icmLut *)wr_icco->read_tag(
					           wr_icco, icSigBToA0Tag)) == NULL) 
						error("read_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

					if (sepsat) {
						/* General expansion rather than source gamut */
						if (gcompr > 0) {
							if (gexpr == 0)
								gexpr = gcompr;
							/* Expand destination gamut cylindrically to make source gamut. */
							if (verb)
								printf(" Creating fake source gamut with expansion %d%%\n",gexpr);
							if (ihgam != NULL)
								ihgam->del(ihgam);
							if ((ihgam = new_gamut(1.0, 0, 0)) == NULL
							 || ihgam->exp_cyl(ihgam, ogam, (100.0 - gexpr)/100.0)) {
								error ("Creating compressed input failed");
							}
						}

						/* setup saturation gamut mapping */
						cx.smap = new_gammap(verb, csgams, igam, ogam, sgmi,
						                     ihgam, 0, 0, 0, 0, mapres,
						                     NULL, NULL, gamdiag ? "gammap_s.wrl" : NULL
						);
						if (cx.smap == NULL)
							error ("Failed to make saturation gamut map transform");

						/* Intent 2 = saturation */
						if ((wo[2] = (icmLut *)wr_icco->read_tag(
						           wr_icco, icSigBToA2Tag)) == NULL) 
							error("read_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
					}
					if (csgams != NULL && csgams != csgamp) {
						csgams->del(csgams);
						csgams = NULL;
					}
					if (csgamp != NULL) {
						csgamp->del(csgamp);
						csgamp = NULL;
					}
					if (igam != NULL) {
						igam->del(igam);
						igam = NULL;
					}
					if (ogam != NULL) {
						ogam->del(ogam);
						ogam = NULL;
					}
				}
			}
			cx.ochan = wo[0]->outputChan;

			/* If we've got a request for Absolute Appearance mode with scaling */
			/* to avoid clipping the source white point, compute the needed XYZ scaling factor. */
			if (src_xicc != NULL && allintents
			  && ((pgmi->usecas & 0x100) || (sgmi->usecas & 0x100))) {
				double swcam[3];
				double xyzscale[1], sa[1];

				/* Grab the source white point in CAM space */
				cx.ixp->efv_wh_bk_points(cx.ixp, swcam, NULL, NULL);

				/* Convert it to destination XYZ */
				/* We're being bad in delving inside the xluo, but we'll fix it latter */
				cx.ox->cam->cam_to_XYZ(cx.ox->cam, cx.swxyz, swcam);

//printf("~1 Source white Jab = %f %f %f\n", swcam[0], swcam[1], swcam[2]);
//printf("~1 Source white XYZ = %f %f %f\n", cx.swxyz[0], cx.swxyz[1], cx.swxyz[2]);

				/* Compute the bigest scale factor less than or equal to 1.0, */
				/* that doesn't clip the cx.swxyz[] on the destination gamut */
				sa[0] = 0.1;
				xyzscale[0] = 0.5;
				if (powell(NULL, 1, xyzscale, sa, 1e-6, 2000,
				                             xyzoptfunc, (void *)&cx, NULL, NULL) != 0) {
					warning("make_output_icc: XYZ scale powell failed to converge - set scale to 1.0");
				} else {
					if (pgmi->usecas & 0x100) {
						cx.xyzscale[0] = xyzscale[0];
						if (cx.verb) printf("Set Perceptual XYZ scale factor to %f\n",xyzscale[0]);
					}
					if (sgmi->usecas & 0x100) {
						cx.xyzscale[1] = xyzscale[0];
						if (cx.verb) printf("Set Saturation XYZ scale factor to %f\n",xyzscale[0]);
					}
				}
			}

// ====================================================================
#ifdef NEVER
// ~~99
			/* DEVELOPMENT CODE - not complete */
			/* Setup optimised B2A per channel curves */
			{
				xfit *xf;				/* Curve fitting class instance */
				int xfflags = 0;		/* xfit flags */
				double in_min[MXDI];	/* Input value scaling minimum */
				double in_max[MXDI];	/* Input value scaling maximum */
				double out_min[MXDO];	/* Output value scaling minimum */
				double out_max[MXDO];	/* Output value scaling maximum */
				int iluord, oluord;
				int iord[MXDI];			/* Input curve orders */
				int oord[MXDO];			/* Output curve orders */
				int nodp;				/* Number of inverse data points */
				co *points;				/* List of inverse points as PCS->dev */

				optcomb tcomb = oc_imo;	/* Create all by default */

				if ((xf = new_xfit(icco)) == NULL) {
					error("profout: Creation of xfit object failed");
				}
					
				/* Setup for optimising run */
				if (nooluts)				/* Use option flags - swap sense for B2A */
					tcomb &= ~oc_i;

				if (noiluts)
					tcomb &= ~oc_o;

				if (verb)
					xfflags |= XFIT_VERB;

				xfflags |= XFIT_OUT_DEV;			/* Outpupt is device */
													/* (Switch to XFIT_OUT_LU latter ?) */
				if (cx.pcsspace == icSigLabData)
					xfflags |= XFIT_IN_ZERO;		/* Adjust a & b to zero */

~~~~~~~~~~~~~~~~~~~
				/* Set the curve order for input (PCS) */
				if (oquality >= 3) {				/* Ultra high */
					iluord = 25;			
					nodp = 2000;
				} else if (oquality == 2) {		/* High */
					iluord = 20;			
					nodp = 1000;
				} else if (oquality == 1) {		/* Medium */
					iluord = 17;			
					nodp = 750;
				} else {						/* Low */
					iluord = 10;			
					nodp = 500;
				}
				for (e = 0; e < p->inputChan; e++) {
					iord[e] = iluord;
					in_min[e] = p->inmin[e];
					in_max[e] = p->inmax[e];

					/* Hack to prevent a convex L curve pushing */
					/* the clut L values above the maximum value */
					/* that can be represented, causing clipping. */
					/* Do this by making sure that the L curve pivots */
					/* through 100.0 to 100.0 */
					if (e == 0 && cx.pcsspace == icSigLabData) {
						if (in_min[e] < 0.0001 && in_max[e] > 100.0) {
							in_max[e] = 100.0;	
						}
					}
				}

				/* Set curve order for output (Device) */
				if (oquality >= 3) {			/* Ultra high */
					oluord = 25;			
				} else if (oquality == 2) {		/* High */
					oluord = 20;			
				} else if (oquality == 1) {		/* Medium */
					oluord = 17;			
				} else {						/* Low */
					oluord = 10;			
				}
				for (f = 0; f < p->outputChan; f++) {
					oord[f] = oluord;
					out_min[f] = p->outmin[f];
					out_max[f] = p->outmax[f];

				}

				/* Create the sample points */
				~~~~~~~~~~~
				malloc

				for (i = 0; i < nodp;) {
					generate random pcs value

					if not within gamut
						continue;

					lookup through overall conversion
					i++;
				}

				/* Fit input and output curves to our data points */
				if (xf->fit(xf, xfflags, p->inputChan, p->outputChan, nodp, points,
				            in_min, in_max, out_min, out_max, iord, oord, tcomb, NULL) != 0) {
					p->pp->errc = 2;
					sprintf(p->pp->err,"xfit fitting failed");
					xf->del(xf);
					p->del((icxLuBase *)p);
					return NULL;
					
				}  

				/* - - - - - - - - - - - - - - - */
				/* Set the xicc input curve rspl */
				for (e = 0; e < p->inputChan; e++) {
					curvectx cx;
			
					cx.xf = xf;
					cx.oix = -1;
					cx.iix = e;

					if ((p->inputTable[e] = new_rspl(1, 1)) == NULL) {
						p->pp->errc = 2;
						sprintf(p->pp->err,"Creation of input table rspl failed");
						p->del((icxLuBase *)p);
						return NULL;
					}

					p->inputTable[e]->set_rspl(p->inputTable[e], RSPL_NOFLAGS,
					           (void *)&cx, set_linfunc,
    			       &p->ninmin[e], &p->ninmax[e],
					           &p->lut->inputEnt,
					           &p->ninmin[e], &p->ninmax[e]);
				}

				/* - - - - - - - - - - - - - - - */
				/* Set the xicc output curve rspl */

				/* Allow for a bigger than normal input and output range, to */
				/* give some leaway in accounting for approximate white point shifted */
				/* profile creation. */
				for (f = 0; f < p->outputChan; f++) {
					double min[1], max[1], exval;
					int entries;
					curvectx cx;

					cx.xf = xf;
					cx.iix = -1;
					cx.oix = f;

					/* Expand in and out range by 1.05 */
					exval = (p->noutmax[f] - p->noutmin[f]);
					min[0] = p->noutmin[f] - exval * 0.05 * 0.5;
					max[0] = p->noutmax[f] + exval * 0.05 * 0.5;
					entries = (int)(1.05 * (double)p->lut->outputEnt + 0.5);

					if ((p->outputTable[f] = new_rspl(1, 1)) == NULL) {
						p->pp->errc = 2;
						sprintf(p->pp->err,"Creation of output table rspl failed");
						p->del((icxLuBase *)p);
						return NULL;
					}

					p->outputTable[f]->set_rspl(p->outputTable[f], RSPL_NOFLAGS,
				           (void *)&cx, set_linfunc,
							min, max, &entries, min, max);

				}

				xf->del(xf);
			}
#endif /* NEVER (Setup optimised B2A per channel curves) */
// ====================================================================

			/* We now setup an exact inverse, colorimetric style, plus gamut mapping */
			/* for perceptual and saturation intents */
			/* Use helper function to do the hard work. */

			if (cx.verb) {
				unsigned int ui;
				int extra;
				cx.count = 0;
				cx.last = -1;
				for (cx.total = 1, ui = 0; ui < wo[0]->inputChan; ui++, cx.total *= wo[0]->clutPoints)
					; 
				/* Add in cell center points */
				for (extra = 1, ui = 0; ui < wo[0]->inputChan; ui++, extra *= (wo[0]->clutPoints-1))
					;
				cx.total += extra;
				printf("Creating B to A tables\n");
				printf(" 0%%"); fflush(stdout);
			}

#ifdef DEBUG_ONE
#define DBGNO 1		/* Up to 10 */

			/* Test a single given PCS (Rel D50 Lab) -> cmyk value */
			{
				double in[10][MAX_CHAN];
				double out[MAX_CHAN];
				in[0][0] = 100.0;			/* White point */
				in[0][1] = 0.001;
				in[0][2] = 0.001;

				for (i = 0; i < DBGNO; i++) {
					printf("Input %s\n",icmPdv(3,in[i]));
					out_b2a_input((void *)&cx, out, in[i]);
					printf("Input' %s\n",icmPdv(3,out));
					out_b2a_clut((void *)&cx, out, out);
					printf("Output' %s\n\n",icmPdv(4,out));
					out_b2a_output((void *)&cx, out, out);
					printf("Output %s\n\n",icmPdv(4,out));
				}
			}
#else /* !DEBUG_ONE */

#ifndef USE_LEASTSQUARES_APROX
			fprintf(stderr,"!!!!! profile/profout: USE_LEASTSQUARES_APROX undef !!!!!\n");
#endif
			if (icmSetMultiLutTables(
			        cx.ntables,
			        wo,
#ifdef USE_LEASTSQUARES_APROX
					ICM_CLUT_SET_APXLS | 
#endif
#ifdef FILTER_B2ACLIP
					ICM_CLUT_SET_FILTER | 
#endif
					0,
					&cx,					/* Context */
					cx.pcsspace,			/* Input color space */
					devspace, 				/* Output color space */
					out_b2a_input,			/* Input transform PCS->PCS' */
					NULL, NULL,				/* Use default PCS range */
					out_b2a_clut,			/* Lab' -> Device' transfer function */
					NULL, NULL,				/* Use default Device' range */
					out_b2a_output,			/* Output transfer function, Device'->Device */
					NULL, NULL				/* Use default APXLS range */
				) != 0)
				error("Setting 16 bit PCS->Device Lut failed: %d, %s",wr_icco->errc,wr_icco->err);
			if (cx.verb) {
				printf("\n");
			}

#ifdef WARN_CLUT_CLIPPING	/* Print warning if setting clut clips */
			/* Ignore clipping of the input table, because this happens */
			/* anyway due to Lab symetry adjustment. */
			if (wr_icco->warnc != 0 && wr_icco->warnc != 1) {
				warning("Values clipped in setting B2A LUT!");
			}
#endif /* WARN_CLUT_CLIPPING */
#endif /* !DEBUG_ONE */

			/* Free up abstract transform */
			for (i = 0; i < cx.ntables; i++) {
				if (cx.abs_luo[i] != NULL) {
					/* Free this and all associated resources */
					cx.abs_luo[i]->del(cx.abs_luo[i]);
					abs_xicc[i]->del(abs_xicc[i]);
					abs_icc[i]->del(abs_icc[i]);
					abs_fp[i]->del(abs_fp[i]);
					/* Mark all duplicates as being free'd too */
					for (j = i+1; j < cx.ntables; j++) {
						if (cx.abs_luo[j] == cx.abs_luo[i])
							cx.abs_luo[j] = NULL;
					}
					cx.abs_luo[i] = NULL;
				}
			}

			if (cx.pmap != NULL)
				cx.pmap->del(cx.pmap), cx.pmap = NULL;
			if (cx.smap != NULL)
				cx.smap->del(cx.smap), cx.smap = NULL;
			if (cx.ixp != NULL)
				cx.ixp->del(cx.ixp), cx.ixp = NULL;
			if (cx.ox != NULL)
				cx.ox->del(cx.ox), cx.ox = NULL;
			if (cx.icam != NULL)
				cx.icam->del(cx.icam), cx.icam = NULL;

			if (src_xicc != NULL)
				src_xicc->del(src_xicc), src_xicc = NULL;
			if (src_icco != NULL)
				src_icco->del(src_icco), src_icco = NULL;

			if (verb)
				printf("Done B to A tables\n");
		}

		/* Set the ColorantTable PCS values */
		{
			unsigned int i;
			icmColorantTable *wo;
			double dv[MAX_CHAN];

			if ((wo = (icmColorantTable *)wr_icco->read_tag(
			           wr_icco, icSigColorantTableTag)) == NULL) 
				error("read_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
	
			for (i = 0; i < wo->count; i++)
				dv[i] = 0.0;

			/* Lookup the colorant PCS values the recommended ICC way */
			for (i = 0; i < wo->count; i++) {
				dv[i] = 1.0;
				AtoB->lookup(AtoB, wo->data[i].pcsCoords, dv);
				dv[i] = 0.0;
			}
		}

#ifndef DISABLE_GAMUT_TAG
		/* Create Gamut clut for output type */
		/* This is not mandated for V2.4.0 Display profiles, but add it anyway */
		if (allintents) {	
			icmLut *wo;
			out_b2a_callback cx;
			double gres = 0.0;

			cx.verb = verb;
			cx.pcsspace = wantLab ? icSigLabData : icSigXYZData;
			cx.devspace = devspace;
			cx.x = (icxLuLut *)AtoB;		/* A2B icxLuLut */

			if (verb)
				printf("Creating gamut boundary table\n");

			/* Need to switch AtoB to be override Lab PCS */
			/* Do this the dirty way, by delving into xicclu and icclu. Alternatively */
			/* we could create an xlut set method, delete AtoB and recreate it, */
			/* or fix get_gamut to independently override convert to icmSigLabData */
			/* ~~~~~~~~999 should fix this !!! */
			cx.x->outs = icSigLabData;
			cx.x->pcs = icSigLabData;
			cx.x->plu->e_outSpace = icSigLabData;
			cx.x->plu->e_pcs = icSigLabData;
			cx.wantLab = wantLab;			/* Copy PCS flag over */

			if (oquality == 3) {	/* Ultra High */
	  	 		gres = 8.0;
			} else if (oquality == 2) {	/* High */
	  	 		gres = 9.0;
			} else if (oquality == 1) {	/* Medium */
	  	 		gres = 10.0;
			} else if (oquality == 0) {	/* Low quality */
	  	 		gres = 12.0;
			} else {					/* Extremely low */
	  	 		gres = 15.0;
			}

			/* Creat a gamut surface */
			if ((cx.gam = AtoB->get_gamut(AtoB, gres)) == NULL)
				error("Get_gamut failed: %d, %s",AtoB->pp->errc,AtoB->pp->err);
			
			if ((wo = (icmLut *)wr_icco->read_tag(
			           wr_icco, icSigGamutTag)) == NULL) 
				error("read_tag failed: %d, %s",wr_icco->errc,wr_icco->err);

			if (cx.verb) {
				unsigned int ui;
				cx.count = 0;
				cx.last = -1;
				for (cx.total = 1, ui = 0; ui < wo->inputChan; ui++, cx.total *= wo->clutPoints)
					; 
				printf(" 0%%"); fflush(stdout);
			}
#ifndef DEBUG_ONE	/* Skip this when debugging */
			if (wo->set_tables(wo,
					ICM_CLUT_SET_EXACT,
					&cx,				/* Context */
					cx.pcsspace,		/* Input color space */
					icSigGrayData,		/* Output color space */
					out_b2a_input,		/* Input transform PCS->PCS' */
					NULL, NULL,			/* Use default Lab' range */
					PCSp_bdist,			/* Lab' -> Boundary distance */
					NULL, NULL,			/* Use default Device' range */
					gamut_output,		/* Boundary distance to out of gamut value */
					NULL, NULL	
				) != 0)
				error("Setting 16 bit PCS->Device Gamut Lut failed: %d, %s",wr_icco->errc,wr_icco->err);
#endif /* !DEBUG_ONE */
			if (cx.verb) {
				printf("\n");
			}
#ifdef WARN_CLUT_CLIPPING	/* Print warning if setting clut clips */
			if (wr_icco->warnc)
				warning("Values clipped in setting Gamut LUT");
#endif /* WARN_CLUT_CLIPPING */

			cx.gam->del(cx.gam);		/* Done with gamut object */
			cx.gam = NULL;

			if (verb)
				printf("Done gamut boundary table\n");
		}
#endif /* !DISABLE_GAMUT_TAG */

		/* Free up xicc stuff */
		AtoB->del(AtoB); /* Done with device to PCS lookup */
		wr_xicc->del(wr_xicc);

	}
	/* Gamma/Shaper + matrix profile */
	/* or XYZ cLUT with matrix as well. */
	if (!isLut || mtxtoo) {
		xicc *wr_xicc;			/* extention object */
		icxLuBase *xluo;		/* Forward ixcLu */
		int flags = 0;

		/* Wrap with an expanded icc */
		if ((wr_xicc = new_xicc(wr_icco)) == NULL)
			error("Creation of xicc failed");
		
		if (verb)
			flags |= ICX_VERBOSE;

		if (ptype == prof_matonly)
			flags |= ICX_NO_IN_SHP_LUTS;	/* Make it linear */

		if (clipprims)
			flags |= ICX_CLIP_WB | ICX_CLIP_PRIMS;
				
		flags |= ICX_SET_WHITE | ICX_SET_BLACK; 		/* Compute & use white & black */

		if (!mtxtoo)	/* Write matrix white/black/Luminance if no cLUT */
			flags |= ICX_WRITE_WBL;

		/* Setup Device -> XYZ conversion (Fwd) object from scattered data. */
		if ((xluo = wr_xicc->set_luobj(
		               wr_xicc, icmFwd, isdisp ? icmDefaultIntent : icRelativeColorimetric,
		               icmLuOrdRev,
			           flags,		 		/* Compute white & black */
		               npat, npat, tpat, NULL, dispLuminance, wpscale,
//			           bpo,
			           smooth, avgdev, demph,
		               NULL, oink, cal, iquality)) == NULL)
			error("%d, %s",wr_xicc->errc, wr_xicc->err);

		/* Free up xicc stuff */
		xluo->del(xluo);

		/* Set the ColorantTable PCS values */
		if (!mtxtoo) {
			unsigned int i;
			icmColorantTable *wo;
			double dv[MAX_CHAN];

			/* Get lookup object simply for fwd_relpcs_outpcs() */
			if ((xluo = wr_xicc->get_luobj(wr_xicc, ICX_CLIP_NEAREST, icmFwd,
			                     icRelativeColorimetric, icmSigDefaultData,
			                     icmLuOrdNorm, NULL, NULL)) == NULL)
				error ("%d, %s",wr_xicc->errc, wr_xicc->err);

			if ((wo = (icmColorantTable *)wr_icco->read_tag(
			           wr_icco, icSigColorantTableTag)) == NULL) 
				error("read_tag failed: %d, %s",wr_icco->errc,wr_icco->err);
	
			for (i = 0; i < wo->count; i++)
				dv[i] = 0.0;

			/* Lookup the colorant PCS values the recommended ICC way */
			for (i = 0; i < wo->count; i++) {
				dv[i] = 1.0;
				xluo->lookup(xluo, wo->data[i].pcsCoords, dv);
				/* Matrix profile can produce -ve values not representable by 16 bit XYZ */
				icmClipXYZ(wo->data[i].pcsCoords,wo->data[i].pcsCoords);
				dv[i] = 0.0;
			}
			xluo->del(xluo);
		}

		wr_xicc->del(wr_xicc);
	}

	/* We're done with any cal now */
	if (cal != NULL)
		cal->del(cal);

	/* Write the file (including all tags) out */
	if ((rv = wr_icco->write(wr_icco,wr_fp,0)) != 0) {
		error("Write file: %d, %s",rv,wr_icco->err);
	}

	/* Close the file */
	wr_icco->del(wr_icco);
	wr_fp->del(wr_fp);

	/* Check the forward profile accuracy against the data points */
	if (verb || verify) {
		icmFile *rd_fp;
		icc *rd_icco;
		icmLuBase *luo;
		double merr = 0.0;
		double rerr = 0.0;
		double aerr = 0.0;
		double nsamps = 0.0;

		/* Open up the file for reading */
		if ((rd_fp = new_icmFileStd_name(file_name,"r")) == NULL)
			error("Write: Can't open file '%s'",file_name);

		if ((rd_icco = new_icc()) == NULL)
			error("Write: Creation of ICC object failed");

		/* Read the header and tag list */
		if ((rv = rd_icco->read(rd_icco,rd_fp,0)) != 0)
			error("Read: %d, %s",rv,rd_icco->err);

		/* Get the Fwd table */
		if ((luo = rd_icco->get_luobj(rd_icco, icmFwd, icAbsoluteColorimetric,
		                              icSigLabData, icmLuOrdNorm)) == NULL) {
			error("%d, %s",rd_icco->errc, rd_icco->err);
		}

		for (i = 0; i < npat; i++) {
			double out[3], ref[3];
			double mxd;

			/* Lookup the profiles PCS for out test patch point */
			if (luo->lookup(luo, out, tpat[i].p) > 1)
				error("%d, %s",rd_icco->errc,rd_icco->err);
		
			/* Our tpat data might be in XYZ, so generate an Lab ref value */
			if (!wantLab) { /* Convert test patch result XYZ to PCS (D50 Lab) */
				icmXYZ2Lab(&icmD50, ref, tpat[i].v);

			} else {
				ref[0] = tpat[i].v[0];
				ref[1] = tpat[i].v[1];
				ref[2] = tpat[i].v[2];
			}

			if (verify && verb) {
				if (devspace == icSigCmykData) {
					printf("[%f] %f %f %f %f -> %f %f %f should be %f %f %f\n",
					       icmLabDE(ref, out),
					       tpat[i].p[0],tpat[i].p[1],tpat[i].p[2],tpat[i].p[3],
					       out[0],out[1],out[2],
					       ref[0],ref[1],ref[2]);
				} else {
					printf("[%f] %f %f %f -> %f %f %f should be %f %f %f\n",
					       icmLabDE(ref, out),
					       tpat[i].p[0],tpat[i].p[1],tpat[i].p[2],
					       out[0],out[1],out[2],
					       ref[0],ref[1],ref[2]);
				}
			}

			/* Check the result */
			mxd = icmLabDE(ref, out);
			if (mxd > merr)
				merr = mxd;

			rerr += mxd * mxd;
			aerr += mxd;
			nsamps++;
		}
		rerr = sqrt(rerr/nsamps);
		aerr /= nsamps;
		printf("Profile check complete, peak err = %f, avg err = %f, RMS = %f\n",merr,aerr,rerr);

		/* Done with lookup object */
		luo->del(luo);

		/* Close the file */
		rd_icco->del(rd_icco);
		rd_fp->del(rd_fp);
	}

	free(tpat);
}