summaryrefslogtreecommitdiff
path: root/imdi/cctiff.c
blob: 6c6f64f19cad4747516e90881cb3d330031a5ad0 (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

/* 
 * Color Correct a TIFF or JPEG file, using an ICC Device link profile.
 * Version #2, that allows an arbitrary string of profiles, and
 * copes with TIFF L*a*b* input and output.
 *
 * Author:  Graeme W. Gill
 * Date:    29/5/2004
 * Version: 2.00
 *
 * Copyright 2000 - 2006, 2012 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.
 */

/* TTBD:

	Add dithered 8 bit output mode. Generate 16 bit
	internally, then apply screening down to 8 bits
	Use render/thrscreen to do the hard work.

	Should special case jpeg noop used to embed profile
	in output, using jpeg_read_coefficients()/jpeg_write_coefficients()
	rather than jpeg_start_decompress(), jpeg_read_scanlines() etc.

	Should make -d option default to the last device
	profile.

	Should add support for getting TIFF ink names from
	the ICC profile colorantTable if it exists,
	or guessing them if they don't, and
	then matching them to the incoming TIFF, and
	embedding them in the outgoing TIFF.
	Add flag to ignore inkname mismatches.


	Should add support for transfering any extra alpha
	planes from input to output, rather than simply ignoring them.


	Question: Should this be changed to also function as
	          a dedicated simple linker, capable of outputing
	          a device link formed from a sequence ?
	          If argyll functionality was properly modularized,
	          it would be possible to have a single arbitrary
	          smart link sequence for both purposes.


	There's the sugggestion that the CIELab and ICCLab encodings
	have different white points (D65 and D50 respecively -
	see <http://www.asmail.be/msg0055212264.html>). Should
    we convert the white point to D65 for CIELab, or make this
	an option ? Probably a bad idea if we regard the Lab in/out
	as relative colorimetric representation ??

	Ideally should automatically generate optimized per channel
	input and output curves, rather than depending on
	reasonable behaviour from the profiles.

	I don't think that the idea of an XYZ input/output space
	has been properly implemented, since the TIFF format
	doesn't have an encoding for it, and hence the l2y_curve
	and u2l_curve scaling is probably incorrect.

	Forcing XYZ or Lab input & output spaces to be [io]combined
	is also not actually necessary, if the necessary profile
	curves were applied and the colorspace ranges properly allowed for.

	JPEG FAX encoding is not currently implemented.

 */

/*
	This program is a framework that exercises the
	IMDI code, as well as a demonstration of profile linking.
	It can also do the raster data conversion using the
    floating point code in ICCLIB as a reference.

 */

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <fcntl.h>
#include <setjmp.h>
#include <string.h>
#include <math.h>
#include "copyright.h"
#include "aconfig.h"
#include "numlib.h"
#include "tiffio.h"
#include "jpeglib.h"
#include "iccjpeg.h"
#include "icc.h"
#include "xicc.h"
#include "imdi.h"
#include "ui.h"

#undef DEBUG		/* Print detailed debug info */


#if !defined(O_CREAT) && !defined(_O_CREAT)
# error "Need to #include fcntl.h!"
#endif

#define DEFJPGQ 80		/* Default JPEG quality */

void usage(char *diag, ...) {
	fprintf(stderr,"Color Correct a TIFF or JPEG file using any sequence of ICC profiles or Calibrations, V%s\n",ARGYLL_VERSION_STR);
	fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n");
	if (diag != NULL) {
		va_list args;
		fprintf(stderr,"  Diagnostic: ");
		va_start(args, diag);
		vfprintf(stderr, diag, args);
		va_end(args);
		fprintf(stderr,"\n");
	}
	fprintf(stderr,"usage: cctiff [-options] { [-i intent] profile%s | calbrtn.cal ...} infile.tif/jpg outfile.tif/jpg\n",ICC_FILE_EXT);
	fprintf(stderr," -v              Verbose.\n");
	fprintf(stderr," -c              Combine linearisation curves into one transform.\n");
	fprintf(stderr," -p              Use slow precise correction.\n");
	fprintf(stderr," -k              Check fast result against precise, and report.\n");
	fprintf(stderr," -r n            Override the default CLUT resolution\n");
	fprintf(stderr," -t n            Choose output encoding from 1..n\n");
	fprintf(stderr," -f [T|J]        Set output format to Tiff or Jpeg (Default is same as input)\n");
	fprintf(stderr," -q quality      Set JPEG quality 1..100 (Default %d)\n",DEFJPGQ);
	fprintf(stderr," -a              Read and Write planes > 4 as alpha planes\n");
	fprintf(stderr," -I              Ignore any file or profile colorspace mismatches\n");
	fprintf(stderr," -D              Don't append or set the output TIFF or JPEG description\n");
	fprintf(stderr," -e profile.[%s | tiff | jpg]  Optionally embed a profile in the destination TIFF or JPEG file.\n",ICC_FILE_EXT_ND);
	fprintf(stderr,"\n");
	fprintf(stderr,"                 Then for each profile in sequence:\n");
	fprintf(stderr,"   -i intent       p = perceptual, r = relative colorimetric,\n");
	fprintf(stderr,"                   s = saturation, a = absolute colorimetric\n");
	fprintf(stderr,"   -o order        n = normal (priority: lut > matrix > monochrome)\n");
	fprintf(stderr,"                   r = reverse (priority: monochrome > matrix > lut)\n");
	fprintf(stderr,"   profile.[%s | tiff]  Device, Link or Abstract profile\n",ICC_FILE_EXT_ND);
	fprintf(stderr,"                   ( May be embedded profile in TIFF/JPEG file)\n");
	fprintf(stderr,"                 or each calibration file in sequence:\n");
	fprintf(stderr,"   -d dir          f = forward cal. (default), b = backwards cal.\n");
	fprintf(stderr,"   calbrtn.cal     Device calibration file.\n");
	fprintf(stderr,"\n");
	fprintf(stderr," infile.tif/jpg  Input TIFF/JPEG file in appropriate color space\n");
	fprintf(stderr," outfile.tif/jpg Output TIFF/JPEG file\n");
	exit(1);
}

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

/* Conversion functions from direct binary 0..n^2-1 == 0.0 .. 1.0 range */
/* to ICC luo input range, and the reverse. */
/* Note that all these functions are per-component, */
/* so the can be included in per-component input or output curves, */
/* if they PCS values were rescaled to be within the range 0.0 .. 1.0. */
/* Since we're not currently doing this, we always set i/ocpmbine */
/* if the input/output is PCS, so that real PCS values don't */
/* appear in the input/output curves. */

/* TIFF 8 bit CIELAB to standard L*a*b* */
/* Assume that a & b have been converted from signed to offset */
static void cvt_CIELAB8_to_Lab(double *out, double *in) {
	out[0] = in[0] * 100.0;
	out[1] = in[1] * 255.0 - 128.0;
	out[2] = in[2] * 255.0 - 128.0;
}

/* Standard L*a*b* to TIFF 8 bit CIELAB */
/* Assume that a & b will be converted from offset to signed */
static void cvt_Lab_to_CIELAB8(double *out, double *in) {
	out[0] = in[0] / 100.0;
	out[1] = (in[1] + 128.0) * 1.0/255.0;
	out[2] = (in[2] + 128.0) * 1.0/255.0;
}


/* TIFF 16 bit CIELAB to standard L*a*b* */
/* Assume that a & b have been converted from signed to offset */
static void cvt_CIELAB16_to_Lab(double *out, double *in) {
	out[0] = in[0] * 100.0;
	out[1] = (in[1] - 32768.0/65535.0) * 256.0;
	out[2] = (in[2] - 32768.0/65535.0) * 256.0;
}

/* Standard L*a*b* to TIFF 16 bit CIELAB */
/* Assume that a & b will be converted from offset to signed */
static void cvt_Lab_to_CIELAB16(double *out, double *in) {
	out[0] = in[0] / 100.0;
	out[1] = in[1]/256.0 + 32768.0/65535.0;
	out[2] = in[2]/256.0 + 32768.0/65535.0;
}


/* TIFF 8 bit ICCLAB to standard L*a*b* */
static void cvt_ICCLAB8_to_Lab(double *out, double *in) {
	out[0] = in[0] * 100.0;
	out[1] = (in[1] * 255.0) - 128.0;
	out[2] = (in[2] * 255.0) - 128.0;
}

/* Standard L*a*b* to TIFF 8 bit ICCLAB */
static void cvt_Lab_to_ICCLAB8(double *out, double *in) {
	out[0] = in[0] * 1.0/100.0;
	out[1] = (in[1] + 128.0) * 1.0/255.0;
	out[2] = (in[2] + 128.0) * 1.0/255.0;
}


/* TIFF 16 bit ICCLAB to standard L*a*b* */
static void cvt_ICCLAB16_to_Lab(double *out, double *in) {
	out[0] = in[0] * (100.0 * 65535.0)/65280.0;
	out[1] = (in[1] * (255.0 * 65535.0)/65280) - 128.0;
	out[2] = (in[2] * (255.0 * 65535.0)/65280) - 128.0;
}

/* Standard L*a*b* to TIFF 16 bit ICCLAB */
static void cvt_Lab_to_ICCLAB16(double *out, double *in) {
	out[0] = in[0] * 65280.0/(100.0 * 65535.0);
	out[1] = (in[1] + 128.0) * 65280.0/(255.0 * 65535.0);
	out[2] = (in[2] + 128.0) * 65280.0/(255.0 * 65535.0);
}

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

/* Convert a TIFF Photometric tag to an ICC colorspace. */
/* return 0 if not possible or applicable. */
icColorSpaceSignature 
TiffPhotometric2ColorSpaceSignature(
void (**ocvt)(double *out, double *in),	/* Return write conversion function, NULL if none */
void (**icvt)(double *out, double *in),	/* Return read conversion function, NULL if none */
int *smsk,			/* Return signed handling mask, 0x0 if none */
int pmtc,			/* Input TIFF photometric */
int bps,			/* Input Bits per sample */
int spp,			/* Input Samples per pixel */
int extra			/* Extra Samples per pixel, if any */
) {
	if (icvt != NULL)
		*icvt = NULL;		/* Default return values */
	if (ocvt != NULL)
		*ocvt = NULL;		/* Default return values */
	if (smsk != NULL)
		*smsk = 0x0;

//	if (extra > 0 && pmtc != PHOTOMETRIC_SEPARATED)
//		return 0x0;						/* We don't handle this */
		
	switch (pmtc) {
		case PHOTOMETRIC_MINISWHITE:	/* Subtractive Gray */
			return icSigGrayData;

		case PHOTOMETRIC_MINISBLACK:	/* Additive Gray */
			return icSigGrayData;

		case PHOTOMETRIC_RGB:
			return icSigRgbData;

		case PHOTOMETRIC_PALETTE:
			return 0x0;

		case PHOTOMETRIC_MASK:
			return 0x0;

		case PHOTOMETRIC_SEPARATED:
			/* Should look at the colorant names to figure out if this is CMY, CMYK */
			/* Should at least return both Cmy/3 or Cmyk/4 ! */
			switch(spp) {
				case 2:
					return icSig2colorData;
				case 3:
//					return icSig3colorData;
					return icSigCmyData;
				case 4:
//					return icSig4colorData;
					return icSigCmykData;
				case 5:
					return icSig5colorData;
				case 6:
					return icSig6colorData;
				case 7:
					return icSig7colorData;
				case 8:
					return icSig8colorData;
				case 9:
					return icSig9colorData;
				case 10:
					return icSig10colorData;
				case 11:
					return icSig11colorData;
				case 12:
					return icSig12colorData;
				case 13:
					return icSig13colorData;
				case 14:
					return icSig14colorData;
				case 15:
					return icSig15colorData;
			}

		case PHOTOMETRIC_YCBCR:
			return icSigYCbCrData;

		case PHOTOMETRIC_CIELAB:
			if (bps == 8) {
				if (icvt != NULL)
					*icvt = cvt_CIELAB8_to_Lab;
				if (ocvt != NULL)
					*ocvt = cvt_Lab_to_CIELAB8;
			} else {
				if (icvt != NULL)
					*icvt = cvt_CIELAB16_to_Lab;
				if (ocvt != NULL)
					*ocvt = cvt_Lab_to_CIELAB16;
			}
			*smsk = 0x6;				/* Treat a & b as signed */
			return icSigLabData;

		case PHOTOMETRIC_ICCLAB:
			if (bps == 8) {
				if (icvt != NULL)
					*icvt = cvt_ICCLAB8_to_Lab;
				if (ocvt != NULL)
					*ocvt = cvt_Lab_to_ICCLAB8;
			} else {
				if (icvt != NULL)
					*icvt = cvt_ICCLAB16_to_Lab;
				if (ocvt != NULL)
					*ocvt = cvt_Lab_to_ICCLAB16;
			}
			return icSigLabData;

		case PHOTOMETRIC_ITULAB:
			return 0x0;					/* Could add this with a conversion function */
										/* but have to allow for variable ITU gamut */
										/* (Tag 433, "Decode") */

		case PHOTOMETRIC_LOGL:
			return 0x0;					/* Could add this with a conversion function */

		case PHOTOMETRIC_LOGLUV:
			return 0x0;					/* Could add this with a conversion function */
	}
	return 0x0;
}


/* Convert an ICC colorspace to the corresponding possible TIFF Photometric tags. */
/* Return the number of matching tags, and 0 if there is no corresponding tag. */
int
ColorSpaceSignature2TiffPhotometric(
uint16 tags[10],				/* Pointer to return array, up to 10 */
icColorSpaceSignature cspace	/* Input ICC colorspace */
) {
	switch(cspace) {
		case icSigGrayData:
			tags[0] = PHOTOMETRIC_MINISBLACK;
			return 1;
		case icSigRgbData:
			tags[0] = PHOTOMETRIC_RGB;
			return 1;
		case icSigCmyData:
		case icSigCmykData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;
		case icSigYCbCrData:
			tags[0] = PHOTOMETRIC_YCBCR;
			return 1;
		case icSigXYZData:
		case icSigLabData:
			tags[0] = PHOTOMETRIC_CIELAB;
			tags[1] = PHOTOMETRIC_ICCLAB;
#ifdef NEVER
			tags[2] = PHOTOMETRIC_ITULAB;
#endif
			return 2;

		case icSigLuvData:
		case icSigYxyData:		/* Could handle this with a conversion ?? */
		case icSigHsvData:
		case icSigHlsData:
			return 0;

		case icSig2colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig3colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig4colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig5colorData:
		case icSigMch5Data:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig6colorData:
		case icSigMch6Data:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig7colorData:
		case icSigMch7Data:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig8colorData:
		case icSigMch8Data:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig9colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig10colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig11colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig12colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig13colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig14colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		case icSig15colorData:
			tags[0] = PHOTOMETRIC_SEPARATED;
			return 1;

		default:
			return 0;
	}
	return 0;
}

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

/* Compute the length of a double nul terminated string, including */
/* the nuls. */
static int zzstrlen(char *s) {
	int i;
	for (i = 0;; i++) {
		if (s[i] == '\000' && s[i+1] == '\000')
			return i+2;
	}
	return 0;
}

/* Convert an ICC colorspace to the corresponding TIFF Inkset tag */
/* return 0xffff if not possible or applicable. */
static int
ColorSpaceSignature2TiffInkset(
icColorSpaceSignature cspace,
int *len,						/* Return length of ASCII inknames */
char **inknames					/* Return ASCII inknames if non NULL */
) {
	switch(cspace) {
		case icSigCmyData:
			return 0xffff;
			if (inknames != NULL) {
				*inknames = "cyan\000magenta\000yellow\000\000";
				*len = zzstrlen(*inknames);
			}
			return 0;				/* Not CMYK */
		case icSigCmykData:
			if (inknames != NULL) {
				*inknames = NULL;	/* No inknames - it's coded */
				*len = 0;
			}
			return INKSET_CMYK;

		case icSigGrayData:
		case icSigRgbData:
		case icSigYCbCrData:
		case icSigLabData:
		case icSigXYZData:
		case icSigLuvData:
		case icSigYxyData:
		case icSigHsvData:
		case icSigHlsData:
		case icSig2colorData:
		case icSig3colorData:
		case icSig4colorData:
		case icSig5colorData:
		case icSigMch5Data:
			return 0xffff;

		case icSig6colorData:
		case icSigMch6Data:
				/* This is a cheat and a hack. Should really make use of the */
				/* ColorantTable to determine the colorant names. */
				/* allowing cctiff to read it. */
			if (inknames != NULL) {
				*inknames = "cyan\000magenta\000yellow\000black\000orange\000green\000\000";
				*len = zzstrlen(*inknames);
			}
			return INKSET_MULTIINK;

		case icSig7colorData:
		case icSigMch7Data:
			return 0xffff;

		case icSig8colorData:
		case icSigMch8Data:
				/* This is a cheat and a hack. Should really make use of the */
				/* ColorantTable to determine the colorant names. */
				/* allowing cctiff to read it. */
			if (inknames != NULL) {
				*inknames = "cyan\000magenta\000yellow\000black\000orange\000green\000lightcyan\000lightmagenta\000\000";
				*len = zzstrlen(*inknames);
			}
			return INKSET_MULTIINK;
		case icSig9colorData:
		case icSig10colorData:
		case icSig11colorData:
		case icSig12colorData:
		case icSig13colorData:
		case icSig14colorData:
		case icSig15colorData:
		default:
			return 0xffff;
	}
	return 0xffff;
}

static char *
Photometric2str(
int pmtc
) {
	static char buf[80];
	switch (pmtc) {
		case PHOTOMETRIC_MINISWHITE:
			return "Subtractive Gray";
		case PHOTOMETRIC_MINISBLACK:
			return "Additive Gray";
		case PHOTOMETRIC_RGB:
			return "RGB";
		case PHOTOMETRIC_PALETTE:
			return "Indexed";
		case PHOTOMETRIC_MASK:
			return "Transparency Mask";
		case PHOTOMETRIC_SEPARATED:
			return "Separated";
		case PHOTOMETRIC_YCBCR:
			return "YCbCr";
		case PHOTOMETRIC_CIELAB:
			return "CIELab";
		case PHOTOMETRIC_ICCLAB:
			return "ICCLab";
		case PHOTOMETRIC_ITULAB:
			return "ITULab";
		case PHOTOMETRIC_LOGL:
			return "CIELog2L";
		case PHOTOMETRIC_LOGLUV:
			return "CIELog2Luv";
	}
	sprintf(buf,"Unknown Photometric Tag %d",pmtc);
	return buf;
}

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

#define YSCALE (2.0/1.3)

/* 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 */
/* Since typically XYZ doesn't use the full range of 0-2.0 allowed */
/* for in the encoding, we scale the cLUT index values to use the 0-1.3 range */

/* (For these functions the encoded XYZ 0.0 - 2.0 range is 0.0 - 1.0 ??) */

/* Y to L* */
static void y2l_curve(double *out, double *in, int isXYZ) {
	int i;
	double val;
	double isc = 1.0, osc = 1.0;

	/* Scale from 0.0 .. 1.999969 to 0.0 .. 1.0 and back */
	/* + range adjustment */
	if (isXYZ) {
		isc = 32768.0/65535.0 * YSCALE;
		osc = 65535.0/32768.0;
	}

	for (i = 0; i < 3; i++) {
		val = in[i] * isc;
		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;
		out[i] = val * osc;
	}
}

/* L* to Y */
static void l2y_curve(double *out, double *in, int isXYZ) {
	int i;
	double val;
	double isc = 1.0, osc = 1.0;

	/* Scale from 0.0 .. 1.999969 to 0.0 .. 1.0 and back */
	/* + range adjustment */
	if (isXYZ) {
		isc = 32768.0/65535.0;
		osc = 65535.0/32768.0 / YSCALE;
	}

	/* Use an L* like curve, scaled to the maximum XYZ value */
	for (i = 0; i < 3; i++) {
		val = in[i] * isc;
		if (val > 0.08)
			val = pow((val + 0.16)/1.16, 3.0);
		else
			val = val/9.032962896;
		out[i] = val * osc;
	}
}

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

/* Callbacks used to initialise imdi */


/* Information needed from a single profile or calibration */
struct _profinfo {
	char name[MAXNAMEL+1];
	icc *c;								/* If non-NULL, ICC profile. */
	xcal *cal;							/* if non-NULL, xcal rather than profile */

	/* Valid for both icc and xcal: */
	icColorSpaceSignature ins, outs;	/* Colorspace of conversion */
	int id, od;							/* Dimensions of conversion */

	/* Valid only for icc: */
	icmHeader *h;						
	icRenderingIntent intent;			/* Rendering intent chosen */
	icmLookupFunc func;					/* Type of function to use in lookup */
	icmLookupOrder order;				/* tag search order to use */
	icmLuAlgType alg;					/* Type of lookup algorithm used */
	int clutres;						/* If this profile uses a clut, what's it's res. ? */
	icColorSpaceSignature natpcs;		/* Underlying natural PCS */
	icmLuBase *luo;						/* Base Lookup type object */

}; typedef struct _profinfo profinfo;

/* Context for imdi setup callbacks */
typedef struct {
	/* Overall parameters */
	int verb;				/* Non-zero if verbose */
	icColorSpaceSignature ins, outs;	/* Input/Output spaces */
	int iinv, oinv;			/* Space inversion */	
	int id, od, md;			/* Input/Output dimensions and max(id,od) */
	int width, height;		/* Width and heigh of raster */
	int isign_mask;			/* Input sign mask */
	int osign_mask;			/* Output sign mask */
	int icombine;			/* Non-zero if input curves are to be combined */
	int ocombine;			/* Non-zero if output curves are to be combined */
	int ilcurve;			/* 1 if input curves are to be concatenated with Y like ->L* curve */
							/* (2 if input curves are to be concatenated with Y->L* curve) */
	int olcurve;			/* 1 if output curves are to be concatenated with L*->Y like curve */
							/* (2 if output curves are to be concatenated with L*->Y curve) */
	void (*icvt)(double *out, double *in);	/* If non-NULL, Input format conversion */
	void (*ocvt)(double *out, double *in);	/* If non-NULL, Output format conversion */

	int nprofs;				/* Number of profiles in the sequence */
	int first, last;		/* index of first and last profiles/cals, 0 and nprofs-1 */ 
	int fclut, lclut;		/* first and last profiles/cals that are part of multi-d table */
	profinfo *profs;		/* Profile information */
} sucntx;


/* Input curve function */
static void input_curves(
	void *cntx,
	double *out_vals,
	double *in_vals
) {
	int i;
	sucntx *rx = (sucntx *)cntx;

//printf("~1 incurve in %f %f %f %f\n",in_vals[0],in_vals[1],in_vals[2],in_vals[3]);

	for (i = 0; i < rx->id; i++)
		out_vals[i] = in_vals[i];	/* Default to nothing */

	if (rx->icombine == 0) {		/* Not combined into multi-d table */

		/* TIFF input format conversion */
		if (rx->icvt != NULL) {					/* (Never used because PCS < 0.0 > 1.0) */
			rx->icvt(out_vals, out_vals);
		}

		/* Any concatinated input calibrations */
		for (i = rx->first; i < rx->fclut; i++) {
			if (rx->profs[i].func == icmFwd)
				rx->profs[i].cal->interp(rx->profs[i].cal, out_vals, out_vals);
			else
				rx->profs[i].cal->inv_interp(rx->profs[i].cal, out_vals, out_vals);
		}

		/* The input table of the first profile */
		/* (icombine is set if input is PCS) */
		if (rx->fclut <= rx->lclut) 
			rx->profs[rx->fclut].luo->lookup_in(rx->profs[rx->fclut].luo, out_vals, out_vals);
	}

	/* If input curve converts to Y like space, apply Y->L* curve */
	/* so as to index CLUT perceptually. */
	if (rx->ilcurve != 0) {
		y2l_curve(out_vals, out_vals, rx->ilcurve == 2);
	}
//printf("~1 incurve out %f %f %f %f\n",out_vals[0],out_vals[1],out_vals[2],out_vals[3]);
}

/* Multi-dim table function */
static void md_table(
void *cntx,
double *out_vals,
double *in_vals
) {
	sucntx *rx = (sucntx *)cntx;
	double vals[MAX_CHAN];
	icColorSpaceSignature prs;		/* Previous colorspace */	
	int i, j;
	
	for (i = 0; i < rx->id; i++)
		vals[i] = in_vals[i];		/* default is do nothing */

//printf("~1 md_table in %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);

	if (rx->ilcurve) {
		/* Apply L*->Y curve to compensate for curve applied after input curve */
		l2y_curve(vals, vals, rx->ilcurve == 2);
	}

	prs = rx->ins;

	/* If the input curves are being combined into clut: */
	if (rx->icombine != 0) {

		/* Any needed TIFF file format conversion */
		if (rx->icvt != NULL) {
			rx->icvt(vals, vals);
//printf("~1 md_table after icvt %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
		}

		/* Any concatinated input calibrations */
		for (j = rx->first; j < rx->fclut; j++) {
			if (rx->profs[j].func == icmFwd)
				rx->profs[j].cal->interp(rx->profs[j].cal, vals, vals);
			else
				rx->profs[j].cal->inv_interp(rx->profs[j].cal, vals, vals);
		}
//printf("~1 md_table after in cals %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
	}

	/* Do all the profile links in-between (if any) */
	for (j = rx->fclut; j <= rx->lclut; j++) {

		/* If it's a calibration */
		if (rx->profs[j].cal != NULL) {
			if (rx->profs[j].func == icmFwd)
				rx->profs[j].cal->interp(rx->profs[j].cal, vals, vals);
			else
				rx->profs[j].cal->inv_interp(rx->profs[j].cal, vals, vals);

		/* Else it's a profile */
		} else {
			/* Convert PCS for this profile */
			if (prs == icSigXYZData && rx->profs[j].ins == icSigLabData) {
				icmXYZ2Lab(&icmD50, vals, vals);
//printf("~1 md_table after XYZ2Lab %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
			} else if (prs == icSigLabData && rx->profs[j].ins == icSigXYZData) {
				icmLab2XYZ(&icmD50, vals, vals);
//printf("~1 md_table after Lab2XYZ %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
			}
		
			/* If first or last profile */
			if (j == rx->fclut || j == rx->lclut) {
				if (j != rx->fclut || rx->icombine) {
					rx->profs[j].luo->lookup_in(rx->profs[j].luo, vals, vals);
//printf("~1 md_table after input curve %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
				}
				rx->profs[j].luo->lookup_core(rx->profs[j].luo, vals, vals);
//printf("~1 md_table after core %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
				if (j != rx->lclut || rx->ocombine) {
					rx->profs[j].luo->lookup_out(rx->profs[j].luo, vals, vals);
				}
//printf("~1 md_table after output curve %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
			/* Middle of chain */
			} else {
				rx->profs[j].luo->lookup(rx->profs[j].luo, vals, vals);
//printf("~1 md_table after middle %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
			}
		}
		prs = rx->profs[j].outs;
	}

	/* convert last PCS to rx->outs PCS if needed */
	if (prs == icSigXYZData
	 && rx->outs == icSigLabData) {
		icmXYZ2Lab(&icmD50, vals, vals);
//printf("~1 md_table after out XYZ2Lab %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
	} else if (prs == icSigLabData
	      && rx->outs == icSigXYZData) {
		icmLab2XYZ(&icmD50, vals, vals);
//printf("~1 md_table after out Lab2XYZ %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
	}

	/* If the output curves are being combined into clut: */
	if (rx->ocombine != 0) {

		/* Any concatinated output calibrations */
		for (j = rx->lclut+1; j <= rx->last; j++) {
			if (rx->profs[j].func == icmFwd)
				rx->profs[j].cal->interp(rx->profs[j].cal, vals, vals);
			else
				rx->profs[j].cal->inv_interp(rx->profs[j].cal, vals, vals);
		}
//printf("~1 md_table after out cals %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);

		/* Any needed TIFF file format conversion */
		if (rx->ocvt != NULL) {
			rx->ocvt(vals, vals);
//printf("~1 md_table after out ocvt %f %f %f %f\n",vals[0],vals[1],vals[2],vals[3]);
		}

	}

	if (rx->olcurve) {
		/* Add Y->L* curve to cause interpolation in perceptual space */
		y2l_curve(vals, vals, rx->olcurve == 2);
	}

	for (i = 0; i < rx->od; i++)
		out_vals[i] = vals[i];
//printf("~1 md_table returns %f %f %f %f\n",out_vals[0],out_vals[1],out_vals[2],out_vals[3]);
}

/* Output curve function */
static void output_curves(
	void *cntx,
	double *out_vals,
	double *in_vals
) {
	sucntx *rx = (sucntx *)cntx;
	int i; 
	
//printf("~1 outurve in %f %f %f %f\n",in_vals[0],in_vals[1],in_vals[2],in_vals[3]);
	for (i = 0; i < rx->od; i++)
		out_vals[i] = in_vals[i];

	/* Apply L* -> Y curve to undo curve applied at CLUT output. */
	if (rx->olcurve != 0) {
		l2y_curve(out_vals, out_vals, rx->olcurve == 2);
	}

	if (rx->ocombine == 0) {	/* Not combined into multi-d table */

		/* The output table of the last profile */
		/* (ocombine is set if output is PCS) */
		if (rx->fclut <= rx->lclut)  {
			rx->profs[rx->lclut].luo->lookup_out(rx->profs[rx->lclut].luo, out_vals, out_vals);
//printf("~1 md_table after out curve %f %f %f %f\n",out_vals[0],out_vals[1],out_vals[2],out_vals[3]);
		}

		/* Any concatinated output calibrations */
		for (i = rx->lclut+1; i <= rx->last; i++) {
			if (rx->profs[i].func == icmFwd)
				rx->profs[i].cal->interp(rx->profs[i].cal, out_vals, out_vals);
			else
				rx->profs[i].cal->inv_interp(rx->profs[i].cal, out_vals, out_vals);
		}

		/* Any needed file format conversion */
		if (rx->ocvt != NULL) {					/* (Never used because PCS < 0.0 > 1.0) */
			rx->ocvt(out_vals, out_vals);
//printf("~1 md_table after out ocvt %f %f %f %f\n",out_vals[0],out_vals[1],out_vals[2],out_vals[3]);
		}
	}
//printf("~1 outurve out %f %f %f %f\n",out_vals[0],out_vals[1],out_vals[2],out_vals[3]);
}

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


/* Check whether two colorspaces appear compatible */
/* return NZ if they match, Z if they don't. */
/* Compatible means any PCS == any PCS, or exact match */
int CSMatch(icColorSpaceSignature s1, icColorSpaceSignature s2) {
	if (s1 == s2)
		return 1;

	if ((s1 == icSigXYZData || s1 == icSigLabData)
	 && (s2 == icSigXYZData || s2 == icSigLabData))
		return 1;

	if ((s1 == icSig5colorData || s1 == icSigMch5Data)
	 && (s2 == icSig5colorData || s2 == icSigMch5Data))
		return 1;

	if ((s1 == icSig6colorData || s1 == icSigMch6Data)
	 && (s2 == icSig6colorData || s2 == icSigMch6Data))
		return 1;

	if ((s1 == icSig7colorData || s1 == icSigMch7Data)
	 && (s2 == icSig7colorData || s2 == icSigMch7Data))
		return 1;

	if ((s1 == icSig8colorData || s1 == icSigMch8Data)
	 && (s2 == icSig8colorData || s2 == icSigMch8Data))
		return 1;

	return 0;
}

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

/* JPEG error information */
typedef struct {
	jmp_buf env;		/* setjmp/longjmp environment */
	char message[JMSG_LENGTH_MAX];
} jpegerrorinfo;

/* JPEG error handler */
static void jpeg_error(j_common_ptr cinfo) {  
	jpegerrorinfo *p = (jpegerrorinfo *)cinfo->client_data;
	(*cinfo->err->format_message) (cinfo, p->message);
	longjmp(p->env, 1);
}

static char *
JPEG_cspace2str(
J_COLOR_SPACE cspace
) {
	static char buf[80];
	switch (cspace) {
		case JCS_UNKNOWN:
			return "Unknown";
		case JCS_GRAYSCALE:
			return "Monochrome";
		case JCS_RGB:
			return "RGB";
		case JCS_YCbCr:
			return "YCbCr";
		case JCS_CMYK:
			return "CMYK";
		case JCS_YCCK:
			return "YCCK";
	}
	sprintf(buf,"Unknown JPEG colorspace %d",cspace);
	return buf;
}

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

int
main(int argc, char *argv[]) {
	int fa, nfa;							/* argument we're looking at */
	char in_name[MAXNAMEL+1] = "";			/* Input raster file name */
	char out_name[MAXNAMEL+1] = "";			/* Output raster file name */
	char dst_pname[MAXNAMEL+1] = "";		/* Destination embedded profile file name */
	icc *deicc = NULL;						/* Destination embedded profile (if any) */
	icRenderingIntent next_intent;			/* Rendering intent for next profile */
	icmLookupOrder next_order;				/* tag search order for next profile */
	icmLookupFunc next_func;				/* Direction for next calibration */
	int last_dim;							/* Next dimentionality between conversions */
	icColorSpaceSignature last_colorspace;	/* Next colorspace between conversions */
	char *last_cs_file;		/* Name of the file the last colorspace came from */
	int dojpg = -1;			/* 0 = tiff, 1 = jpg, -1 = same as input */
	int jpgq = -1;			/* Jpeg quality, default DEFJPGQ */
	int doimdi = 1;			/* Use the fast overall integer conversion */
	int dofloat = 0;		/* Use the slow precice (float). */
	int check = 0;			/* Check fast (int) against slow (float) */
	int ochoice = 0;		/* Output encoding choice 1..n */
	int alpha = 0;			/* Use alpha for extra planes */
	int ignoremm = 0;		/* Ignore any colorspace mismatches */
	int nodesc = 0;			/* Don't append or set the description */
	int copydct = 0;		/* For jpeg->jpeg with no changes, copy DCT cooeficients */
	int i, j, rv = 0;

	/* TIFF file info */
    TIFFErrorHandler olderrh, oldwarnh;
	TIFFErrorHandlerExt olderrhx, oldwarnhx;
	TIFF *rh = NULL, *wh = NULL;

	int x, y, width, height;					/* Common size of image */
	uint16 bitspersample;						/* Bits per sample */
	uint16 resunits;
	float resx, resy;
	uint16 pconfig;								/* Planar configuration */

	uint16 rsamplesperpixel, wsamplesperpixel;	/* Channels per sample */
	uint16 rphotometric, wphotometric;			/* Photometrics */
	uint16 rextrasamples, wextrasamples;		/* Extra "alpha" samples */
	uint16 *rextrainfo, wextrainfo[MAX_CHAN];	/* Info about extra samples */
	char *rdesc = NULL;							/* Existing description */
	char *ddesc = "[ Color corrected by ArgyllCMS ]";	/* Default description */
	char *wdesc = NULL;							/* Written desciption */

	tdata_t *inbuf = NULL, *outbuf = NULL, *hprecbuf = NULL;
	int inbpix, outbpix;				/* Number of pixels in jpeg in/out buf */

	/* JPEG file info */
	jpegerrorinfo jpeg_rerr, jpeg_werr;
	FILE *rf = NULL, *wf = NULL;
	struct jpeg_decompress_struct rj;
	struct jpeg_compress_struct wj;
	struct jpeg_error_mgr jerr;

	/* IMDI */
	imdi *s = NULL;
	sucntx su;				/* Setup context */
	unsigned char *inp[MAX_CHAN];
	unsigned char *outp[MAX_CHAN];
	int clutres = 0;		/* Default */

	/* Error check */
	int mxerr = 0;
	double avgerr = 0.0;
	double avgcount = 0.0;

	error_program = "cctiff";
	if (argc < 2)
		usage("Too few arguments");

	/* Set defaults */
	memset((void *)&su, 0, sizeof(sucntx));
	next_intent = icmDefaultIntent;
	next_func = icmFwd;
	next_order = icmLuOrdNorm;

	/* JPEG */
	jpeg_std_error(&jerr);
	jerr.error_exit = jpeg_error;

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

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

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

			/* Slow, Precise, not integer */
			else if (argv[fa][1] == 'p' || argv[fa][1] == 'P') {
				doimdi = 0;
				dofloat = 1;
			}

			/* Combine per channel curves */
			else if (argv[fa][1] == 'c' || argv[fa][1] == 'C') {
				su.icombine = 1;
				su.ocombine = 1;
			}

			/* Check curves */
			else if (argv[fa][1] == 'k' || argv[fa][1] == 'K') {
				doimdi = 1;
				dofloat = 1;
				check = 1;
			}

			/* Use alpha planes for any over 4 */
			else if (argv[fa][1] == 'a' || argv[fa][1] == 'A') {
				alpha = 1;
			}

			/* CLUT resolution */
			else if (argv[fa][1] == 'r' || argv[fa][1] == 'R') {
				fa = nfa;
				if (na == NULL) usage("Expect argument to -r flag");
				clutres = atoi(na);
				if (clutres < 2)
					usage("-r argument must be >= 2");
			}

			/* Output file encoding choice */
			else if (argv[fa][1] == 't' || argv[fa][1] == 'T') {
				fa = nfa;
				if (na == NULL) usage("Expect argument to -t flag");
				ochoice = atoi(na);
			}

			/* Output file format override */
			else if (argv[fa][1] == 'f') {
				fa = nfa;
				if (na == NULL) usage("Missing argument to -f flag");
    			switch (na[0]) {
					case 't':
					case 'T':
						dojpg = 0;
						break;
					case 'j':
					case 'J':
						dojpg = 1;
						break;
					default:
						usage("Unknown argument '%c' to -f flag",na[0]);
				}
			}

			/* JPEG quality */
			else if (argv[fa][1] == 'q') {
				fa = nfa;
				if (na == NULL) usage("Expect argument to -q flag");
				jpgq = atoi(na);
				if (jpgq < 1 || jpgq > 100)
					usage("-q argument must 1..100");
			}

			/* Destination TIFF embedded profile */
			else if (argv[fa][1] == 'e' || argv[fa][1] == 'E') {
				fa = nfa;
				if (na == NULL) usage("Expect profile name argument to -e flag");
				strncpy(dst_pname,na, MAXNAMEL); dst_pname[MAXNAMEL] = '\000';
			}

			/* Next profile Intent */
			else if (argv[fa][1] == 'i') {
				fa = nfa;
				if (na == NULL) usage("Missing argument to -i flag");
    			switch (na[0]) {
					case 'p':
					case 'P':
						next_intent = icPerceptual;
						break;
					case 'r':
					case 'R':
						next_intent = icRelativeColorimetric;
						break;
					case 's':
					case 'S':
						next_intent = icSaturation;
						break;
					case 'a':
					case 'A':
						next_intent = icAbsoluteColorimetric;
						break;
					default:
						usage("Unknown argument '%c' to -i flag",na[0]);
				}
			}

			/* Next profile search order */
			else if (argv[fa][1] == 'o') {
				fa = nfa;
				if (na == NULL) usage("Missing argument to -o flag");
    			switch (na[0]) {
					case 'n':
					case 'N':
						next_order = icmLuOrdNorm;
						break;
					case 'r':
					case 'R':
						next_order = icmLuOrdRev;
						break;
					default:
						usage("Unknown argument '%c' to -o flag",na[0]);
				}
			}

			/* Next calibraton direction */
			else if (argv[fa][1] == 'd') {
				fa = nfa;
				if (na == NULL) usage("Missing argument to -i flag");
    			switch (na[0]) {
					case 'f':
					case 'F':
						next_func = icmFwd;
						break;
					case 'b':
					case 'B':
						next_func = icmBwd;
						break;
					default:
						usage("Unknown argument '%c' to -d flag",na[0]);
				}
			}

			else if (argv[fa][1] == 'I')
				ignoremm = 1;

			else if (argv[fa][1] == 'D')
				nodesc = 1;

			/* Verbosity */
			else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') {
				su.verb = 1;
			}

			else  {
				usage("Unknown flag '%c'",argv[fa][1]);
			}

		} else if (argv[fa][0] != '\000') {
			/* Get the next filename */
		
			if (su.nprofs == 0)
				su.profs = (profinfo *)malloc(sizeof(profinfo));
			else
				su.profs = (profinfo *)realloc(su.profs, (su.nprofs+1) * sizeof(profinfo));
			if (su.profs == NULL)
				error("Malloc failed in allocating space for profile info.");

			memset((void *)&su.profs[su.nprofs], 0, sizeof(profinfo));
			strncpy(su.profs[su.nprofs].name,argv[fa],MAXNAMEL);
			su.profs[su.nprofs].name[MAXNAMEL] = '\000';
			su.profs[su.nprofs].intent = next_intent;
			su.profs[su.nprofs].func = next_func;
			su.profs[su.nprofs].order = next_order;

			su.nprofs++;
			next_intent = icmDefaultIntent;
			next_func = icmFwd;
			next_order = icmLuOrdNorm;
		} else {
			break;
		}
	}

	/* The last two "profiles" are actually the input and output TIFF/JPEG filenames */
	/* Unwind them */
	if (su.nprofs < 2)
		usage("Not enough arguments to specify input and output TIFF/JPEG files");

	strncpy(out_name,su.profs[--su.nprofs].name, MAXNAMEL); out_name[MAXNAMEL] = '\000';
	strncpy(in_name,su.profs[--su.nprofs].name, MAXNAMEL); in_name[MAXNAMEL] = '\000';

	su.fclut = su.first = 0;
	su.lclut = su.last = su.nprofs-1;

	if (check && (!doimdi || !dofloat))
		error("Can't do check unless both integeral and float processing are enabled");

/*

	Logic required:

	Discover input TIFF/JPEG colorspace and set as (ICC) "next_space"
	Set any special input space encoding transform (ie. device, Lab flavour)

	For each profile:

		case abstract:
			set dir = fwd, intent = default
			check next_space == CIE
			next_space = CIE
	
		case dev link:
			set dir = fwd, intent = default
			check next_space == profile.in_devspace
			next_space = profile.out_devspace 

		case cal file:
			check next_space == cal.devspace
			next_space = cal.devspace 

		case colorspace/input/display/output:
			if colorspace
				set intent = default

			if next_space == CIE
				set dir = fwd
				next_space = profile.devspace
			else
				set dir = bwd
				check next_space == profile.devspace
				next_space = CIE
	
		create luo
	
	Make output TIFF colorspace match next_space

	Figure out how many calibrations can be concatinated into the input
	and output curves.

	Set any special output space encoding transform (ie. device, Lab flavour)

*/
	/* - - - - - - - - - - - - - - - */
	/* Open up input tiff file ready for reading */
	/* Discover input TIFF colorspace and set as (ICC) "last_colorspace" */
	/* Set any special input space encoding transform (ie. device, Lab flavour) */

	/* Supress TIFF messages */
	olderrh = TIFFSetErrorHandler(NULL);
	oldwarnh = TIFFSetWarningHandler(NULL);
	olderrhx = TIFFSetErrorHandlerExt(NULL);
	oldwarnhx = TIFFSetWarningHandlerExt(NULL);

	if ((rh = TIFFOpen(in_name, "r")) != NULL) {

		TIFFSetErrorHandler(olderrh);
		TIFFSetWarningHandler(oldwarnh);
		TIFFSetErrorHandlerExt(olderrhx);
		TIFFSetWarningHandlerExt(oldwarnhx);

		TIFFGetField(rh, TIFFTAG_IMAGEWIDTH,  &width);
		TIFFGetField(rh, TIFFTAG_IMAGELENGTH, &height);

		TIFFGetField(rh, TIFFTAG_BITSPERSAMPLE, &bitspersample);
		if (bitspersample != 8 && bitspersample != 16) {
			error("TIFF Input file must be 8 or 16 bits/channel");
		}

		TIFFGetFieldDefaulted(rh, TIFFTAG_EXTRASAMPLES, &rextrasamples, &rextrainfo);
//		if (rextrasamples > 0 && alpha == 0)
//			error("TIFF Input file has extra samples per pixel - cctiff can't handle that");
			
		TIFFGetField(rh, TIFFTAG_PHOTOMETRIC, &rphotometric);
		TIFFGetField(rh, TIFFTAG_SAMPLESPERPIXEL, &rsamplesperpixel);

		/* Figure out how to handle the input TIFF colorspace */
		if ((su.ins = TiffPhotometric2ColorSpaceSignature(NULL, &su.icvt, &su.isign_mask, rphotometric,
		                                     bitspersample, rsamplesperpixel, rextrasamples)) == 0)
			error("Can't handle TIFF file photometric %s", Photometric2str(rphotometric));
		su.iinv = 0;
		su.id = rsamplesperpixel;

		TIFFGetField(rh, TIFFTAG_PLANARCONFIG, &pconfig);
		if (pconfig != PLANARCONFIG_CONTIG)
			error ("TIFF Input file must be planar");

		TIFFGetField(rh, TIFFTAG_RESOLUTIONUNIT, &resunits);
		TIFFGetField(rh, TIFFTAG_XRESOLUTION, &resx);
		TIFFGetField(rh, TIFFTAG_YRESOLUTION, &resy);

		last_dim = su.id;
		last_colorspace = su.ins;
		last_cs_file = in_name;

		su.width = width;
		su.height = height;

		if (TIFFGetField(rh, TIFFTAG_IMAGEDESCRIPTION, &rdesc) != 0) {
			if ((rdesc = strdup(rdesc)) == NULL)
				error("Malloc of input file description string failed");
		} else
			rdesc = NULL;

		if (dojpg < 0)
			dojpg = 0;

	/* See if it is a JPEG File */
	} else {
		jpeg_saved_marker_ptr mlp;

		TIFFSetErrorHandler(olderrh);
		TIFFSetWarningHandler(oldwarnh);
		TIFFSetErrorHandlerExt(olderrhx);
		TIFFSetWarningHandlerExt(oldwarnhx);

//printf("~1 TIFFOpen failed on '%s'\n",in_name);

		/* We cope with the horrible ijg jpeg library error handling */
		/* by using a setjmp/longjmp. */
		if (setjmp(jpeg_rerr.env)) {
			/* Something went wrong with opening the file */
			jpeg_destroy_decompress(&rj);
			error("error opening read file '%s' [%s]",in_name,jpeg_rerr.message);
		}

		rj.err = &jerr;
		rj.client_data = &jpeg_rerr;
		jpeg_create_decompress(&rj);

#if defined(O_BINARY) || defined(_O_BINARY)
	    if ((rf = fopen(in_name,"rb")) == NULL)
#else
	    if ((rf = fopen(in_name,"r")) == NULL)
#endif
		{
			jpeg_destroy_decompress(&rj);
			error("error opening read file '%s'",in_name);
		}
		
		jpeg_stdio_src(&rj, rf);
		jpeg_save_markers(&rj, JPEG_COM, 0xFFFF);
		for (i = 0; i < 16; i++)
			jpeg_save_markers(&rj, JPEG_APP0 + i, 0xFFFF);

		/* we'll longjmp on error */
		jpeg_read_header(&rj, TRUE);

		bitspersample = rj.data_precision;
		if (bitspersample != 8 && bitspersample != 16) {
			error("JPEG Input file must be 8 or 16 bit/channel");
		}

		/* No extra samples */
		rextrasamples = 0;
		su.iinv = 0;
			
		switch (rj.jpeg_color_space) {
			case JCS_GRAYSCALE:
				rj.out_color_space = JCS_GRAYSCALE;
				su.ins = icSigGrayData;
				su.id = 1;
				break;

			case JCS_YCbCr:		/* get libjpg to convert to RGB */
				rj.out_color_space = JCS_RGB;
				su.ins = icSigRgbData;
				su.id = 3;
				if (ochoice == 0)
					ochoice = 1;
				break;

			case JCS_RGB:
				rj.out_color_space = JCS_RGB;
				su.ins = icSigRgbData;
				su.id = 3;
				if (ochoice == 0)
					ochoice = 2;
				break;

			case JCS_YCCK:		/* libjpg to convert to CMYK */
				rj.out_color_space = JCS_CMYK;
				su.ins = icSigCmykData;
				su.id = 4;
				if (rj.saw_Adobe_marker)
					su.iinv = 1;
				if (ochoice == 0)
					ochoice = 1;
				break;

			case JCS_CMYK:
				rj.out_color_space = JCS_CMYK;
				su.ins = icSigCmykData;
				su.id = 4;
				if (rj.saw_Adobe_marker)	/* Adobe inverts CMYK */
					su.iinv = 1;
				if (ochoice == 0)
					ochoice = 2;
				break;

			default:
				error("Can't handle JPEG file colorspace 0x%x", rj.jpeg_color_space);
		}

		if (rj.density_unit == 1)
			resunits = RESUNIT_INCH;
		else if (rj.density_unit == 2)
			resunits = RESUNIT_CENTIMETER;
		else
			resunits = RESUNIT_NONE;
		resx = rj.X_density;
		resy = rj.Y_density;

		last_dim = su.id;
		last_colorspace = su.ins;
		last_cs_file = in_name;

		jpeg_calc_output_dimensions(&rj);
		su.width = width = rj.output_width;
		su.height = height = rj.output_height;

		/* Locate any comment */
		rdesc = NULL;
		for (mlp = rj.marker_list; mlp != NULL; mlp = mlp->next) {
			if (mlp->marker == JPEG_COM && mlp->data_length > 0) {
				if ((rdesc = malloc(mlp->data_length+1)) == NULL)
					error("Malloc of input file description string failed");
				memcpy(rdesc, mlp->data, mlp->data_length-1);
				rdesc[mlp->data_length] = '\000';
				break;
			} 
		}

		if (dojpg < 0)
			dojpg = 1;

	}


	/* - - - - - - - - - - - - - - - */
	/* Check and setup the sequence of ICC profiles */

	/* For each profile in the sequence, configure it to transform the color */
	/* appropriately */
	for (i = su.first; i <= su.last; i++) {

		/* First see if it's a calibration file */
		if ((su.profs[i].cal = new_xcal()) == NULL)
			error("new_xcal failed");

		if ((su.profs[i].cal->read(su.profs[i].cal, su.profs[i].name)) == 0) {

			su.profs[i].ins = su.profs[i].outs = icx_colorant_comb_to_icc(su.profs[i].cal->devmask);
			if (su.profs[i].outs == 0)
				error ("Calibration file '%s' has unhandled device mask %s",su.profs[i].name,icx_inkmask2char(su.profs[i].cal->devmask,1));
			su.profs[i].id = su.profs[i].od = su.profs[i].cal->devchan;
			/* We use the user provided direction */

		/* else see if it's an ICC or embedded ICC */
		} else {
		
			su.profs[i].cal->del(su.profs[i].cal);	/* Clean up */
			su.profs[i].cal = NULL;

			if ((su.profs[i].c = read_embedded_icc(su.profs[i].name)) == NULL)
				error ("Can't read profile or calibration from file '%s'",su.profs[i].name);

			su.profs[i].h = su.profs[i].c->header;

			/* Deal with different profile classes, */
			/* and set the profile function and intent. */
			switch (su.profs[i].h->deviceClass) {
    		case icSigAbstractClass:
    		case icSigLinkClass:
					su.profs[i].func = icmFwd;
					su.profs[i].intent = icmDefaultIntent;
					break;

    		case icSigColorSpaceClass:
					su.profs[i].func = icmFwd;
					su.profs[i].intent = icmDefaultIntent;
					/* Fall through */

    		case icSigInputClass:
    		case icSigDisplayClass:
    		case icSigOutputClass:
					/* Note we don't handle an ambigious (both directions match) case. */
					/* We would need direction from the user to resolve this. */
					if (CSMatch(last_colorspace, su.profs[i].h->colorSpace)) {
						su.profs[i].func = icmFwd;
					} else {
						su.profs[i].func = icmBwd;		/* PCS -> Device */
					}
					break;
					/* Use the user provided intent */

				default:
					error("Can't handle deviceClass %s from file '%s'",
					     icm2str(icmProfileClassSignature,su.profs[i].h->deviceClass),
					     su.profs[i].c->err,su.profs[i].name);
			}

			/* Get a conversion object */
			if ((su.profs[i].luo = su.profs[i].c->get_luobj(su.profs[i].c, su.profs[i].func,
			              su.profs[i].intent, icmSigDefaultData, su.profs[i].order)) == NULL)
				error ("%d, %s from '%s'",su.profs[i].c->errc, su.profs[i].c->err, su.profs[i].name);
		
			/* Get details of conversion */
			su.profs[i].luo->spaces(su.profs[i].luo, &su.profs[i].ins, &su.profs[i].id,
			         &su.profs[i].outs, &su.profs[i].od, &su.profs[i].alg, NULL, NULL, NULL, NULL);

			/* Get native PCS space */
			su.profs[i].luo->lutspaces(su.profs[i].luo, NULL, NULL, NULL, NULL, &su.profs[i].natpcs);

			/* If this is a lut transform, find out its resolution */
			if (su.profs[i].alg == icmLutType) {
				icmLut *lut;
				icmLuLut *luluo = (icmLuLut *)su.profs[i].luo;		/* Safe to coerce */
				luluo->get_info(luluo, &lut, NULL, NULL, NULL);	/* Get some details */
				su.profs[i].clutres = lut->clutPoints;			/* Desired table resolution */
			} else 
				su.profs[i].clutres = 0;

		}

		/* Check that we can join to previous correctly */
		if (!ignoremm && !CSMatch(last_colorspace, su.profs[i].ins))
			error("Last colorspace %s from file '%s' doesn't match input space %s of profile %s",
		      icm2str(icmColorSpaceSignature,last_colorspace),
			  last_cs_file,
			  icm2str(icmColorSpaceSignature,su.profs[i].ins),
			  su.profs[i].name);

		last_dim = icmCSSig2nchan(su.profs[i].outs);
		last_colorspace = su.profs[i].outs;
		last_cs_file = su.profs[i].name; 
	}
	
	su.od = last_dim;
	su.oinv = 0;
	su.outs = last_colorspace;

	/* Go though the sequence again, and count the number of leading and */
	/* trailing calibrations that can be combined into the input and output */
	/* lookup curves */
	for (i = su.first; ; i++) {
		if (i > su.last || su.profs[i].c != NULL) {
			su.fclut = i;
			break;
		}
	}
	for (i = su.last; ; i--) {
		if (i < su.first || su.profs[i].c != NULL) {
			su.lclut = i;
			break;
		}
	}

	if (su.fclut > su.lclut) {	/* Hmm. All calibs, no profiles */
		su.fclut = su.first;	/* None at start */
		su.lclut = su.first-1;	/* All at the end */
	}
		
//printf("~1 first = %d, fclut = %d, lclut = %d, last = %d\n", su.first, su.fclut, su.lclut, su.last);

	su.md = su.id > su.od ? su.id : su.od;

	/* - - - - - - - - - - - - - - - */
	/* Create a TIFF file */
	if (dojpg == 0) {
		/* Open up the output TIFF file for writing */
		if ((wh = TIFFOpen(out_name, "w")) == NULL)
			error("Can\'t create TIFF file '%s'!",out_name);
		
		wsamplesperpixel = su.od;

		wextrasamples = 0;
		if (alpha && wsamplesperpixel > 4) {
			wextrasamples = wsamplesperpixel - 4;	/* Call samples > 4 "alpha" samples */
			for (j = 0; j < wextrasamples; j++)
				wextrainfo[j] = EXTRASAMPLE_UNASSALPHA;
		}

		/* Configure the output TIFF file appropriately */
		TIFFSetField(wh, TIFFTAG_IMAGEWIDTH,  width);
		TIFFSetField(wh, TIFFTAG_IMAGELENGTH, height);
		TIFFSetField(wh, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
		TIFFSetField(wh, TIFFTAG_SAMPLESPERPIXEL, wsamplesperpixel);
		TIFFSetField(wh, TIFFTAG_BITSPERSAMPLE, bitspersample);
		TIFFSetField(wh, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);

		TIFFSetField(wh, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
		if (resunits) {
			TIFFSetField(wh, TIFFTAG_RESOLUTIONUNIT, resunits);
			TIFFSetField(wh, TIFFTAG_XRESOLUTION, resx);
			TIFFSetField(wh, TIFFTAG_YRESOLUTION, resy);
		}
		/* Perhaps the description could be more informative ? */
		if (rdesc != NULL) {
			if ((wdesc = malloc(sizeof(char) * (strlen(rdesc) + strlen(ddesc) + 2))) == NULL)
				error("malloc failed on new desciption string");
			
			strcpy(wdesc, rdesc);
			if (nodesc == 0 && su.nprofs > 0) {
				strcat(wdesc, " ");
				strcat(wdesc, ddesc);
			}
			TIFFSetField(wh, TIFFTAG_IMAGEDESCRIPTION, wdesc);
		} else if (nodesc == 0 && su.nprofs > 0) {
			if ((wdesc = strdup(ddesc)) == NULL)
				error("malloc failed on new desciption string");
			TIFFSetField(wh, TIFFTAG_IMAGEDESCRIPTION, ddesc);
		}

		/* Lookup and decide what TIFF photometric suites the output colorspace */
		{
			int no_pmtc;					/* Number of possible photometrics */
			uint16 pmtc[10];				/* Photometrics of output file */
			if ((no_pmtc = ColorSpaceSignature2TiffPhotometric(pmtc,
			                                    last_colorspace)) == 0)
				error("TIFF file can't handle output colorspace '%s'!",
				      icm2str(icmColorSpaceSignature, last_colorspace));
		
			if (no_pmtc > 1) {		/* Need to choose a photometric */
				if (ochoice < 1 || ochoice > no_pmtc ) {
					if (su.verb) {
						printf("Possible Output Encodings for output colorspace %s are:\n",
						        icm2str(icmColorSpaceSignature,last_colorspace));
						for (i = 0; i < no_pmtc; i++)
							printf("%d: %s%s\n",i+1, Photometric2str(pmtc[i]), i == 0 ? " (Default)" : "");
						printf("Using default\n\n");
					}
					ochoice = 1;
				}
				wphotometric = pmtc[ochoice-1];
			} else {
				wphotometric = pmtc[0];
			}
		}

		/* Lookup what we need to handle this. */
		if ((su.outs = TiffPhotometric2ColorSpaceSignature(&su.ocvt, NULL, &su.osign_mask, wphotometric,
		                                     bitspersample, wsamplesperpixel, wextrasamples)) == 0)
			error("Can't handle TIFF file photometric %s", Photometric2str(wphotometric));
		TIFFSetField(wh, TIFFTAG_PHOTOMETRIC, wphotometric);

		if (alpha && wextrasamples > 0) {
			TIFFSetField(wh, TIFFTAG_EXTRASAMPLES, wextrasamples, wextrainfo);

		} else {

			if (wphotometric == PHOTOMETRIC_SEPARATED) {
				icc *c = NULL;
				icmColorantTable *ct;
				int iset;
				int inlen;
				char *inames = NULL;

				if (su.lclut >= 0 && su.lclut < su.nprofs)
					c = su.profs[su.lclut].c; 
 
				iset = ColorSpaceSignature2TiffInkset(su.outs, &inlen, &inames);

				/* Use ICC profile ink names if they are available */
				if (c != NULL
				 && ((ct = (icmColorantTable *)c->read_tag(c, icSigColorantTableOutTag)) != NULL
				  || (ct = (icmColorantTable *)c->read_tag(c, icSigColorantTableTag)) != NULL)
				 && ct->count != wsamplesperpixel
				) {
					int i;
					char *cp;
					inlen = 0;
					for (i = 0; i < ct->count; i++)
						inlen += strlen(ct->data[i].name) + 1;
					inlen += 1;
					if ((inames = malloc(inlen)) == NULL)
						error("malloc failed on inknames string");
					cp = inames;
					for (i = 0; i < ct->count; i++) {
						int slen = strlen(ct->data[i].name) + 1;
						memcpy(cp, ct->data[i].name, slen);
						cp += slen;
					}
					*cp = '\000';
				}
				if (iset != 0xffff) {
					TIFFSetField(wh, TIFFTAG_INKSET, iset);
					/* An inknames tage confuses Photoshop with standard spaces */
					if ((iset == INKSET_MULTIINK || iset == 0)		/* N color or CMY */
					 && inlen > 0 && inames != NULL) {
						TIFFSetField(wh, TIFFTAG_INKNAMES, inlen, inames);
					}
				}
			}
		}

	/* Create JPEG file */
	} else {
		jpeg_saved_marker_ptr mlp;
		int jpeg_color_space;

		/* We cope with the horrible ijg jpeg library error handling */
		/* by using a setjmp/longjmp. */
		if (setjmp(jpeg_werr.env)) {
			/* Something went wrong with opening the file */
			jpeg_destroy_compress(&wj);
			error("Can\'t create JPEG file '%s'! [%s]",out_name, jpeg_werr.message);
		}

		wj.err = &jerr;
		wj.client_data = &jpeg_werr;
		jpeg_create_compress(&wj);

#if defined(O_BINARY) || defined(_O_BINARY)
	    if ((wf = fopen(out_name,"wb")) == NULL)
#else
	    if ((wf = fopen(out_name,"w")) == NULL)
#endif
		{
			jpeg_destroy_compress(&wj);
			error("Can\'t create JPEG file '%s'!",out_name);
		}
		
		jpeg_stdio_dest(&wj, wf);

		wj.image_width = width;
		wj.image_height = height;
		wj.input_components = su.od;

		switch (last_colorspace) {
			case icSigGrayData: 
				wj.in_color_space = JCS_GRAYSCALE;
				jpeg_color_space = JCS_GRAYSCALE;
				break;

			case icSigRgbData:
				wj.in_color_space = JCS_RGB;
				if (ochoice < 0 || ochoice > 2) {
					printf("Possible JPEG Output Encodings for output colorspace icSigRgbData are\n"
						  "1: YCbCr (Default)\n" "2: RGB\n");
					ochoice = 1;
				}
				if (ochoice == 2)
					jpeg_color_space = JCS_RGB;
				else
					jpeg_color_space = JCS_YCbCr;
				break;

			case icSigCmykData:
				wj.in_color_space = JCS_CMYK;
				if (ochoice < 0 || ochoice > 2) {
					printf("Possible JPEG Output Encodings for output colorspace icSigCmykData are\n"
						  "1: YCCK (Default)\n" "2: CMYK\n");
					ochoice = 1;
				}
				if (ochoice == 2)
					jpeg_color_space = JCS_CMYK;
				else
					jpeg_color_space = JCS_YCCK;
				break;

			default:
				error("JPEG file can't handle output colorspace '%s'!",
				      icm2str(icmColorSpaceSignature, last_colorspace));
		}

		if (resunits != RESUNIT_NONE) {
			if (resunits == RESUNIT_INCH)
				wj.density_unit = 1;
			else if (resunits == RESUNIT_CENTIMETER)
				wj.density_unit = 2;
			wj.X_density = resx;
			wj.Y_density = resy;
		}

		jpeg_set_defaults(&wj);
		jpeg_set_colorspace(&wj, jpeg_color_space);

		if (jpgq < 0)
			jpgq = DEFJPGQ;
		jpeg_set_quality(&wj, jpgq, TRUE);

		/* The default sub-sampling sub-samples the CC and K of YCC & YCCK */
		/* while not sub-sampling RGB or CMYK */

		if (wj.write_Adobe_marker)
			su.oinv = 1;
	}

	/* - - - - - - - - - - - - - - - */
	if (su.fclut <= su.lclut
	 && ((su.profs[su.fclut].natpcs == icSigXYZData && su.profs[su.fclut].alg == icmMatrixFwdType)
	  || su.profs[su.fclut].ins == icSigXYZData)) {
		su.ilcurve = 1;			/* Index CLUT with L* curve rather than Y */
	}

	/* Setup input/output curve use. */
	if (su.ins == icSigLabData || su.ins == icSigXYZData) {
		su.icombine = 1;		/* CIE can't be conveyed through 0..1 domain lookup */
	}

	if (su.fclut <= su.lclut
	 && ((su.profs[su.lclut].natpcs == icSigXYZData && su.profs[su.lclut].alg == icmMatrixBwdType)
	  || su.profs[su.lclut].outs == icSigXYZData)) {
		su.olcurve = 1;			/* Interpolate in L* space rather than Y */
	}

	if (su.outs == icSigLabData || su.outs == icSigXYZData) {
		su.ocombine = 1;		/* CIE can't be conveyed through 0..1 domain lookup */
	}

	/* Decide if jpeg should decompress & compress */
	if (rf != NULL && wf != NULL && su.nprofs == 0) {
		copydct = 1;
	}

	/* - - - - - - - - - - - - - - - */
	/* Report the connection sequence details */

	if (su.verb) {

		if (rh) {
			printf("Input raster file '%s' is TIFF\n",in_name);
			printf("Input TIFF file photometric is %s\n",Photometric2str(rphotometric));
		} else {
			printf("Input raster file '%s' is JPEG\n",in_name);
			printf("Input JPEG file original colorspace is %s\n",JPEG_cspace2str(rj.jpeg_color_space));
			if (copydct)
				printf("JPEG copy will be lossless\n");
		}
		printf("Input raster file ICC colorspace is %s\n",icm2str(icmColorSpaceSignature,su.ins));
		printf("Input raster file is %d x %d pixels\n",su.width, su.height);
		if (rdesc != NULL)
			printf("Input raster file description: '%s'\n",rdesc);
		printf("\n");

		printf("There are %d profiles/calibrations in the sequence:\n\n",su.nprofs);


		for (i = su.first; i <= su.last; i++) {
			if (su.profs[i].c != NULL) {
				icmFile *op;
				if ((op = new_icmFileStd_fp(stdout)) == NULL)
					error ("Can't open stdout");
				printf("Profile %d '%s':\n",i,su.profs[i].name);
				su.profs[i].h->dump(su.profs[i].h, op, 1);
				op->del(op);
				printf("Direction = %s\n",icm2str(icmTransformLookupFunc, su.profs[i].func));
				printf("Intent = %s\n",icm2str(icmRenderingIntent, su.profs[i].intent));
				printf("Algorithm = %s\n",icm2str(icmLuAlg, su.profs[i].alg));
			} else {
				printf("Calibration %d '%s':\n",i,su.profs[i].name);
				printf("Direction = %s\n",icm2str(icmTransformLookupFunc, su.profs[i].func));
				if (su.profs[i].cal->xpi.deviceMfgDesc != NULL)
					printf("Manufacturer: '%s'\n",su.profs[i].cal->xpi.deviceMfgDesc);
				if (su.profs[i].cal->xpi.modelDesc != NULL)
					printf("Model: '%s'\n",su.profs[i].cal->xpi.modelDesc);
				if (su.profs[i].cal->xpi.profDesc != NULL)
					printf("Description: '%s'\n",su.profs[i].cal->xpi.profDesc);
				if (su.profs[i].cal->xpi.copyright != NULL)
					printf("Copyright: '%s'\n",su.profs[i].cal->xpi.copyright);
			}

			if (i == 0 && su.icombine)
				printf("Input curves being combined\n");
			if (i == 0 && su.ilcurve)
				printf("Input curves being post-converted to L*\n");
			printf("Input space = %s\n",icm2str(icmColorSpaceSignature, su.profs[i].ins));
			printf("Output space = %s\n",icm2str(icmColorSpaceSignature, su.profs[i].outs));
			if (i == (su.last) && su.olcurve)
				printf("Output curves being pre-converted from L*\n");
			if (i == (su.last) && su.ocombine)
				printf("Output curves being combined\n");
			printf("\n");
		}

		if (wh != NULL) {
			printf("Output TIFF file '%s'\n",out_name);
			printf("Ouput raster file ICC colorspace is %s\n",icm2str(icmColorSpaceSignature,su.outs));
			printf("Output TIFF file photometric is %s\n",Photometric2str(wphotometric));
		} else {
			printf("Output JPEG file '%s'\n",out_name);
			printf("Ouput raster file ICC colorspace is %s\n",icm2str(icmColorSpaceSignature,su.outs));
			printf("Output JPEG file colorspace is %s\n",JPEG_cspace2str(wj.jpeg_color_space));
			if (wdesc != NULL)
				printf("Output raster file description: '%s'\n",wdesc);
		}
		printf("\n");
	}

	/* - - - - - - - - - - - - - - - */
	/* Setup the imdi */

	if (check)
		doimdi = dofloat = 1;

	if (doimdi && su.nprofs > 0) {
		int aclutres = 0;	/* Automatically set res */
		imdi_options opts = opts_none;
	
		if (rextrasamples > 0) {		/* We need to skip the alpha */
			opts |= opts_istride;
		}
	
		/* Setup the imdi resolution */
		/* Choose the resolution from the highest lut resolution in the sequence, */
		/* or choose a default. */
		for (i = su.first; i <= su.last; i++) {
			if (su.profs[i].c != NULL
			 && su.profs[i].clutres > aclutres)
				aclutres = su.profs[i].clutres;
		}
		if (aclutres == 0) {
			aclutres = dim_to_clutres(su.id, 2);			/* High quality */

		} else if (aclutres < dim_to_clutres(su.id, 1)) {	/* Worse than medium */
			aclutres = dim_to_clutres(su.id, 1);
		}

		if (clutres == 0)
			clutres = aclutres;

		if (su.verb)
			printf("Using CLUT resolution %d\n",clutres);
	
		s = new_imdi(
			su.id,			/* Number of input dimensions */
			su.od,			/* Number of output dimensions */
							/* Input pixel representation */
			bitspersample == 8 ? pixint8 : pixint16,
							/* Output pixel representation */
			su.isign_mask,	/* Treat appropriate channels as signed */
			NULL,			/* No raster to callback channel mapping */
			prec_min,		/* Minimum of input and output precision */
			bitspersample == 8 ? pixint8 : pixint16,
			su.osign_mask,	/* Treat appropriate channels as signed */
			NULL,			/* No raster to callback channel mapping */
			clutres,		/* Desired table resolution */
			oopts_none,		/* Desired per channel output options */
			NULL,			/* Output channel check values */
			opts,			/* Desired processing direction and stride support */
			input_curves,	/* Callback functions */
			md_table,
			output_curves,
			(void *)&su		/* Context to callbacks */
		);
		
		if (s == NULL) {
	#ifdef NEVER
			printf("id = %d\n",su.id);
			printf("od = %d\n",su.od);
			printf("in bps = %d\n",bitspersample);
			printf("out bps = %d\n",bitspersample);
			printf("in signs = %d\n",su.isign_mask);
			printf("out signs = %d\n",su.osign_mask);
			printf("clutres = %d\n",clutres);
	#endif
			error("new_imdi failed");
		}
	}

	if (rh != NULL) 
		inbuf  = _TIFFmalloc(TIFFScanlineSize(rh));
	else {
		inbpix = rj.output_width * rj.num_components;
		if ((inbuf = (tdata_t *)malloc(inbpix)) == NULL)
			error("Malloc failed on input line buffer");
	}

	if (wh != NULL)
		outbuf = _TIFFmalloc(TIFFScanlineSize(wh));
	else {
		outbpix = wj.image_width * wj.input_components;
		if ((outbuf = (tdata_t *)malloc(outbpix)) == NULL)
			error("Malloc failed on output line buffer");
	}

	inp[0] = (unsigned char *)inbuf;
	outp[0] = (unsigned char *)outbuf;

	if (dofloat || su.nprofs == 0) {
		if (wh != NULL)
			hprecbuf = _TIFFmalloc(TIFFScanlineSize(wh));
		else {
			if ((hprecbuf = (tdata_t *)malloc(outbpix)) == NULL)
				error("Malloc failed on high precision line buffer");
		}
	}

	if (rh == NULL) {
		if (setjmp(jpeg_rerr.env)) {
			/* Something went wrong with reading the file */
			jpeg_destroy_decompress(&rj);
			error("failed to read JPEG line [%s]",jpeg_rerr.message);
		}
	}

	if (wh == NULL) {
		if (setjmp(jpeg_werr.env)) {
			/* Something went wrong with writing the file */
			jpeg_destroy_compress(&wj);
			error("failed to write JPEG line [%s]", jpeg_werr.message);
		}
	}

	/* NOTE :- the legal of jpeg calls is rather tricky.... */

	if (!copydct) {		/* Do this before writing description */
		if (rf)
			jpeg_start_decompress(&rj);
		if (wf)
			jpeg_start_compress(&wj, TRUE);
	}

	if (wf != NULL) {
		/* Perhaps the description could be more informative ? */
		if (rdesc != NULL) {
			if ((wdesc = malloc(sizeof(char) * (strlen(rdesc) + strlen(ddesc) + 2))) == NULL)
				error("malloc failed on new desciption string");
			
			strcpy(wdesc, rdesc);
			if (nodesc == 0 && su.nprofs > 0) {
				strcat(wdesc, " ");
				strcat(wdesc, ddesc);
			}
			jpeg_write_marker(&wj, JPEG_COM, (const JOCTET *)wdesc, strlen(wdesc)+1);
		} else if (nodesc == 0 && su.nprofs > 0) {
			if ((wdesc = strdup(ddesc)) == NULL)
				error("malloc failed on new desciption string");
			jpeg_write_marker(&wj, JPEG_COM, (const JOCTET *)wdesc, strlen(wdesc)+1);
		}
	}

	if (copydct) {		/* Lossless JPEG copy - copy image data */
		jvirt_barray_ptr *coefas;
		jpeg_saved_marker_ptr marker;

		coefas = jpeg_read_coefficients(&rj);
		jpeg_copy_critical_parameters(&rj, &wj);
		jpeg_write_coefficients(&wj, coefas);

// We don't copy these normally.
//		for (marker = rj.marker_list; marker != NULL; marker = marker->next) {
//			jpeg_write_marker(&wj, marker->marker, marker->data, marker->data_length);
	}

	/* Setup any destination embedded profile */
	if (dst_pname[0] != '\000') {
		icmFile *fp;		/* Read fp for the profile */
		unsigned char *buf;
		int size;

		if ((deicc = read_embedded_icc(dst_pname)) == NULL)
			error("Unable to open profile for destination embedding '%s'",dst_pname);

		/* Check that it is compatible with the destination raster file */
		if (deicc->header->deviceClass != icSigColorSpaceClass
		 && deicc->header->deviceClass != icSigInputClass
		 && deicc->header->deviceClass != icSigDisplayClass
		 && deicc->header->deviceClass != icSigOutputClass) {
			error("Destination embedded profile is wrong device class for embedding");
		}

		if (deicc->header->colorSpace != su.outs
		 || (deicc->header->pcs != icSigXYZData 
		  && deicc->header->pcs != icSigLabData)) {
			error("Destination embedded profile colorspaces don't match TIFF");
		}

		if ((fp = deicc->get_rfp(deicc)) == NULL)
			error("Failed to be able to read destination embedded profile");

		if ((size = fp->get_size(fp)) == 0)
			error("Failed to be able to get size of destination embedded profile");

		if ((buf = malloc(size)) == NULL)
			error("malloc failed on destination embedded profile size %d",size);

		if (fp->seek(fp,0))
			error("rewind on destination embedded profile failed");

		if (fp->read(fp, buf, 1, size) != size)
			error("reading destination embedded profile failed");

		/* (For iccv4 we would now fp->del(fp) because we got a reference) */

		if (wh != NULL) {
			if (TIFFSetField(wh, TIFFTAG_ICCPROFILE, size, buf) == 0)
				error("setting TIFF embedded ICC profile field failed");
		} else {
			if (setjmp(jpeg_werr.env)) {
				jpeg_destroy_compress(&wj);
				error("setting JPEG embedded ICC profile marker failed");
			}
			write_icc_profile(&wj, buf, size);
		}

		free(buf);
		deicc->del(deicc);
	}

	if (!copydct) {

		/* We're not doing a lossless copy */


		/* - - - - - - - - - - - - - - - */
		/* Process colors to translate */
		/* (Should fix this to process a group of lines at a time ?) */

		for (y = 0; y < height; y++) {
			tdata_t *obuf;

			/* Read in the next line */
			if (rh) {
				if (TIFFReadScanline(rh, inbuf, y, 0) < 0)
					error ("Failed to read TIFF line %d",y);
			} else {
				jpeg_read_scanlines(&rj, (JSAMPARRAY)&inbuf, 1);
				if (su.iinv) {
					unsigned char *cp, *ep = (unsigned char *)inbuf + inbpix;
					for (cp = (unsigned char *)inbuf; cp < ep; cp++)
						*cp = ~*cp;
				}
			}

			if (doimdi && su.nprofs > 0) {
				/* Do fast conversion */
				s->interp(s, (void **)outp, 0, (void **)inp, su.id, width);
			}
			
			if (dofloat || su.nprofs == 0) {
				/* Do floating point conversion into the hprecbuf[] */
				for (x = 0; x < width; x++) {
					int i;
					double in[MAX_CHAN], out[MAX_CHAN];
					
//printf("\n");
					if (bitspersample == 8) {
						for (i = 0; i < su.id; i++) {
							int v = ((unsigned char *)inbuf)[x * su.id + i];
//printf("~1 8 bit pixel value chan %d = %d\n",i,v);
							if (su.isign_mask & (1 << i))		/* Treat input as signed */
								v = (v & 0x80) ? v - 0x80 : v + 0x80;
//printf("~1 8 bit after treat as signed chan %d = %d\n",i,v);
							in[i] = v/255.0;
//printf("~1 8 bit fp chan %d value = %f\n",i,in[i]);
						}
					} else {
						for (i = 0; i < su.id; i++) {
							int v = ((unsigned short *)inbuf)[x * su.id + i];
//printf("~1 16 bit pixel value chan %d = %d\n",i,v);
							if (su.isign_mask & (1 << i))		/* Treat input as signed */
								v = (v & 0x8000) ? v - 0x8000 : v + 0x8000;
//printf("~1 16 bit after treat as signed chan %d = %d\n",i,v);
							in[i] = v/65535.0;
//printf("~1 16 bit fp chan %d value = %f\n",i,in[i]);
						}
					}

					if (su.nprofs > 0) {
						/* Apply the reference conversion */
						input_curves((void *)&su, out, in);
//for (i = 0; i < su.id; i++) printf("~1 after input curve chan %d = %f\n",i,out[i]);
						md_table((void *)&su, out, out);
//for (i = 0; i < su.od; i++) printf("~1 after md table chan %d = %f\n",i,out[i]);
						output_curves((void *)&su, out, out);
//for (i = 0; i < su.od; i++) printf("~1 after output curve chan %d = %f\n",i,out[i]);
					} else {
						for (i = 0; i < su.od; i++)
							 out[i] = in[i];
					}

					if (bitspersample == 8) {
						for (i = 0; i < su.od; i++) {
							int v = (int)(out[i] * 255.0 + 0.5);
//printf("~1 8 bit chan %d = %d\n",i,v);
							if (v < 0)
								v = 0;
							else if (v > 255)
								v = 255;
//printf("~1 8 bit after clip curve chan %d = %d\n",i,v);
							if (su.osign_mask & (1 << i))		/* Treat input as offset */
								v = (v & 0x80) ? v - 0x80 : v + 0x80;
//printf("~1 8 bit after treat as offset chan %d = %d\n",i,v);
							((unsigned char *)hprecbuf)[x * su.od + i] = v;
						}
					} else {
						for (i = 0; i < su.od; i++) {
							int v = (int)(out[i] * 65535.0 + 0.5);
//printf("~1 16 bit chan %d = %d\n",i,v);
							if (v < 0)
								v = 0;
							else if (v > 65535)
								v = 65535;
//printf("~1 16 bit after clip curve chan %d = %d\n",i,v);
							if (su.osign_mask & (1 << i))		/* Treat input as offset */
								v = (v & 0x8000) ? v - 0x8000 : v + 0x8000;
//printf("~1 16 bit after treat as offset chan %d = %d\n",i,v);
							((unsigned short *)hprecbuf)[x * su.od + i] = v;
						}
					}
				}

				if (check) {
					/* Compute the errors */
					for (x = 0; x < (width * su.od); x++) {
						int err;
						if (bitspersample == 8)
							err = ((unsigned char *)outbuf)[x] - ((unsigned char *)hprecbuf)[x];
						else
							err = ((unsigned short *)outbuf)[x] - ((unsigned short *)hprecbuf)[x];
						if (err < 0)
							err = -err;
						if (err > mxerr)
							mxerr = err;
						avgerr += (double)err;
						avgcount++;
					}
				}
			}
				
			if (dofloat || su.nprofs == 0) 	/* Use the results of the f.p. conversion */
				obuf = hprecbuf;
			else
				obuf = outbuf;

			if (wh != NULL) {
				if (TIFFWriteScanline(wh, obuf, y, 0) < 0)
					error ("Failed to write TIFF line %d",y);
			} else {	
				if (su.oinv) {
					unsigned char *cp, *ep = (unsigned char *)obuf + outbpix;
					for (cp = (unsigned char *)obuf; cp < ep; cp++)
						*cp = ~(*cp);
				}
				jpeg_write_scanlines(&wj, (JSAMPARRAY)&obuf, 1);
			}
		}

		if (check) {
			printf("Worst error = %d bits, average error = %f bits\n", mxerr, avgerr/avgcount);
			if (bitspersample == 8)
				printf("Worst error = %f%%, average error = %f%%\n",
				       mxerr/2.55, avgerr/(2.55 * avgcount));
			else
				printf("Worst error = %f%%, average error = %f%%\n",
				       mxerr/655.35, avgerr/(655.35 * avgcount));
		}

	}

	if (wh != NULL) {
		if (outbuf != NULL)
			_TIFFfree(outbuf);
		if (hprecbuf != NULL)
			_TIFFfree(hprecbuf);
		TIFFClose(wh);
	} else {
		jpeg_finish_compress(&wj);
		jpeg_destroy_compress(&wj);
		if (outbuf != NULL)
			free(outbuf);
		if (hprecbuf != NULL)
			free(hprecbuf);
		if (fclose(wf))
			error("Error closing output file '%s'\n",out_name);
	}

	/* Release buffers and close files */
	if (rh != NULL) {
		if (inbuf != NULL)
			_TIFFfree(inbuf);
		TIFFClose(rh); /* Close Input file */
	} else {
		jpeg_finish_decompress(&rj);
		jpeg_destroy_decompress(&rj);
		if (inbuf != NULL)
			free(inbuf);
		if (fclose(rf))
			error("Error closing JPEG input file '%s'\n",in_name);
	}

	/* Done with lookup object */
	if (s != NULL)
		s->del(s);

	/* Free up all the profiles etc. in the sequence. */
	for (i = 0; i < su.nprofs; i++) {
		if (su.profs[i].c != NULL) {				/* Has an ICC profile */
			su.profs[i].luo->del(su.profs[i].luo);	/* Lookup */
			su.profs[i].c->del(su.profs[i].c);	
		} else {
			su.profs[i].cal->del(su.profs[i].cal);	/* Calibration */
		}
	}

	if (rdesc != NULL)
		free(rdesc);
	if (wdesc != NULL)
		free(wdesc);

	return 0;
}