summaryrefslogtreecommitdiff
path: root/target/printtarg.c
blob: 863537f3d03feac60e0fbddb8187b25395e9784d (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
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473

/* 
 * Argyll Color Correction System
 * PostScript print chart generator module.
 *
 * Author: Graeme W. Gill
 * Date:   28/9/96
 *
 * Copyright 1996 - 2009 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 option to return the number of patches that will
	exactly fit the given number of pages.

	Add optional device link processing support (same slot
	as -K file.cal) to permit a smoother proofing verification workflow. 

	Add independent w & h patch scaling option.

	Allow scaling minimum leading/trailing white space.

	Add option to omit labelling.

	Add "single pixel patch" mode, for pure digital processing for
	abstract profile creation.

	Add -h2 flag for Munki for super high-res chart ?
	Note:   i1Pro:  Illum spot: 3.5mm Aperture: 4.5mm, Physical aperture: 4.55mm

            Munki:  Illum spot: 8.0mm Aperture: 6.0mm, Physical aperture: 7.63mm
			Min patch size is 6mm x 6mm, below that increases delta E.

	Add an option that allows including a scale gauge, to detect
	accidental re-scaling.

	Make it aportion extra space evenly around the chart
	rather than at the trailing edges.

	Add direct PDF support, including NChannel output.

	Add option to apply a scale to counteract the Adobe utility problem.
*/

/* This program generates a PostScript or TIFF print target file, */
/* containing color test patches, given the .ti1 file specifying */
/* what the colors are. */

/* The output is designed to suite a general XY spectrometer (such as */
/* the Gretag SpectrScan), a handheld, manual instrument, or */
/* an Xrite DTP51, DTP41 or Eye-One strip spectrometer. */

/* Description:

	This program simply generates a PostScripto or TIFF file containing
	the patches layed out for an Xrite DTP20/DTP22/DTP51/DTP41/SpectroScan/i1pro/Munki.
	It allows them to be layed out on a choice of paper sizes,
	with the appropriate contrasting color spacers between
	each patch for the strip reading instruments. Unlike other
	charts, Argyll charts are generated as required, rather
	that being fixed. Also unlike most other strip reading charts,
	the spacers may colored, so that the density contrast ratio is
	guaranteed, even when two patches are about 50% density.

	Another feature is the pseudo random patch layout. This has
	three purposes. One is to try and average out any variation
	in the device response in relationship to the location of
	the patch on the paper. Color copiers and printing presses
	(for instance), are notorious in having side to side density
	variations.

	Another purpose of the random patch layout, is that it gives
	the reading program a good mechanism for detecting user error.
	It can guess the expected values, compare them to the readings,
	and complain if it seems that the strip is probably the wrong
	one. It can also be used to identify and rectify a strip
    that has been read in backwards.

	The final purpose of the random patch layout is to optimse the
	contrast between patches in a strip, to improve the robustness
	of the strip reading, and to be able to distinguish the directin
	a strip has been read in. Using this, small charts may be even be
	generated without any gaps between the test patches.

 */

/*
 * Nomencalture:
 *
 *	Largely due to how the strip readers name things, the following terms
 *  are used for how patches are grouped:
 *
 *  Pass, Row: One row of patches in a strip. A pass is usually labeled
 *             with a unique alphabetic label. 
 *  Strip:     A group of passes that can be read by a strip reader.
 *             For an XY instrument, the strip is a complete sheet, and
 *             each pass is one column. The rows of an XY chart are
 *             the step numbers within a pass.
 *  Step:      One test patch in a pass.
 *  Sheet:     One sheet of paper, containing full and partial strips.
 *             For an XY instrument, there will be only one strip per sheet.
 *           
 */

/* TTBD:
 *
 *    Improve EPS support to add a preview to each eps file.
 */

#undef DEBUG			/* Print edge details to stderr */
#undef FORCEN			/* For testing, force DeviceN */
#define DEN_COMPRESS	/* Compress density estimates > 1.0 */
						/* - this biases it towards white spacers */

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#if defined(__IBMC__)
#include <float.h>
#endif
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include <ctype.h>
#include "copyright.h"
#include "aconfig.h"
#include "numlib.h"
#include "cgats.h"
#include "icc.h"
#include "xicc.h"
#include "insttypes.h"
#include "render.h"
#include "randix.h"
#include "alphix.h"
#include "rspl.h"
#include "sort.h"
#include "ui.h"

#include <stdarg.h>

/* Convert inches into mm */
#define inch2mm(xx) ((xx) * 25.4)

/* Convert mm into points */
#define mm2pnt(xx) ((xx) * 72.0/25.4)

/* A color structure */
struct _col {
	int nmask;		/* colorant mask */
	int altrep;		/* alternate grey or CMY representation type 0..8 */
	int i;			/* cols list index */
	int ix;			/* random list index */
	char *id;		/* Id string */
	char loc[10];	/* Location ID string */
	int t;			/* Tag */
#define T_XYZ    0x0001
#define T_LAB    0x0002
#define T_DEN    0x0004
#define T_RGB    0x0008
#define T_N      0x0010
#define T_NFB    0x2000			/* DeviceN fallback enabled */
#define T_PRESET 0x4000			/* A preset color rather than a test patch */
#define T_PAD    0x8000			/* A padding color patch */
	double XYZ[3];				/* Aproximate XYZ */
	double Lab[3];				/* Aproximate Lab */
	double den[4];				/* Approx statusT density + visual density */
	int    dtp20_octval;		/* DTP20 octal value */
	double dtp20_psize;			/* DTP20 patch width */
	double rgb[3];				/* Aproximate sRGB */
	int n;						/* Number of colorants */
	double dev[ICX_MXINKS];		/* Value of colorants */
	
	struct _col *nc[2];			/* Neigborhood colors */
	struct _col *oc;			/* Opposite direction color */
	double       wnd;			/* Worst neigborhood contrast density */
}; typedef struct _col col;

#define min2(a,b) ((a) < (b) ? (a) : (b))
#define min3(a,b,c)  (min2((a), min2((b),(c))))
#define max2(a,b) ((a) > (b) ? (a) : (b))
#define max3(a,b,c)  (max2((a), max2((b),(c))))

/* Declare edge tracking functions */
void et_init(void);
void et_height(double height);
void et_media(double *rgb);
void et_color(double *rgb);
void et_edge(int isx, int negh, double mj, double mi0, double mi1);
void et_patch(char *id, double xo, double yo, double w, double h);
void et_fiducial(double x, double y);
void et_write(char *fname, col *cols, int *rix, int si, int ei);
void et_clear(void);

/* ====================================================== */
/* Calibration Target rendering class */
/* Outputs either PostScript or TIFF raster */
/* test charts. */
/* We just do an error() if something goes wrong */

/* Common class structure */
#define TREND_STRUCT																	\
	/* Start a page */ 																	\
	void (*startpage)(struct _trend *s, int pn);										\
	/* End a page */ 																	\
	void (*endpage)(struct _trend *s);													\
	/* set the color */ 																\
	void (*setcolor)(struct _trend *s, xcal *cal, col *c);								\
	/* A rectangle, with optional edge tracking */										\
	void (*rectangle)(struct _trend *s,					/* Render a rectangle */		\
		double x, double y,		/* Top left corner of rectangle in mm from origin */	\
		double w, double h,		/* Width and height */									\
		char *id,				/* Patch id, NULL if not a diagnostic mark */			\
		int et					/* nz if use edge tracking on this */					\
	);																					\
	/* A testpad hexagon. */															\
	void (*hexagon)(struct _trend *s,													\
		double x, double y,		/* Top left vertex of hex mm from origin */				\
		double w, double h,		/* Width and height */									\
		int step,               /* Step number from 0 to figure odd/even */				\
		char *id				/* Patch id, NULL if not a diagnostic mark */			\
	);																					\
	/* A centered string */																\
	void (*string)(struct _trend *s,													\
		double x, double y,		/* Bot Left Corner of rectangle in mm from origin */	\
		double w, double h,		/* Width and height */									\
		char *str				/* String */											\
	);																					\
	/* A vertically centered string, rendered from bottom to top */						\
	void (*vstring)(struct _trend *s,													\
		double x, double y,		/* Bot Right Corner of rectangle in mm from origin */	\
		double w, double h,		/* Width and height */									\
		char *str				/* String */											\
	);																					\
	/* A dotted line */																	\
	void (*dline)(struct _trend *s,														\
		double x0, double y0,		/* Start of line */									\
		double x1, double y1,		/* End of line */									\
		double w					/* Width */											\
	);																					\
	/* Delete the object */ 															\
	void (*del)(struct _trend *s);														\

struct _trend {
	TREND_STRUCT
}; typedef struct _trend trend;

/* ==================================== */
/* PostScript output class */

struct _ps_trend {
	TREND_STRUCT
	FILE *of;			/* Postscript output file */
	int eps;			/* EPS flag */
	char *fname;
}; typedef struct _ps_trend ps_trend;

/* Start a page */
static void ps_startpage(trend *ss, int pagen) {
	ps_trend *s = (ps_trend *)ss; 

	fprintf(s->of,"%%%%Page: (Page %d) %d\n",pagen,pagen);
}

/* End a page */
static void ps_endpage(trend *ss) {
	ps_trend *s = (ps_trend *)ss; 

	fprintf(s->of,"showpage\n");
	fprintf(s->of,"\n");
}

/* Set a device N color with fallback */
static void
gen_ncolor(ps_trend *s, col *c) {
	int i;

	/* define the colorspace */
	fprintf(s->of,"[ /DeviceN [ ");
	for (i = 0; i < c->n; i++) {
		int imask = icx_index2ink(c->nmask, i);
		fprintf(s->of,"/%s ", icx_ink2psstring(imask));
	}

	if (c->t & T_NFB) {		/* Use color fallback */
		fprintf(s->of,"] /DeviceRGB ");	/* Fallback to RGB */
		fprintf(s->of,"{ ");
		for (i = 0; i < c->n; i++)		/* Remove N values */
			fprintf(s->of,"pop ");
		for (i = 0; i < 3; i++)			/* Set RGB values */
			fprintf(s->of,"%f ",c->rgb[i]);
	} else {
		fprintf(s->of,"] /DeviceGray ");	/* Fallback to Gray */
		fprintf(s->of,"{ ");
		for (i = 0; i < c->n; i++)		/* Remove N values */
			fprintf(s->of,"pop ");
		fprintf(s->of,"%f ",(c->rgb[0] + c->rgb[1] + c->rgb[2])/3.0); /* Set Gray value */
	}

	fprintf(s->of," } ] setcolorspace\n");

	/* Set the color */
	for (i = 0; i < c->n; i++)
		fprintf(s->of,"%f ",c->dev[i]);
	fprintf(s->of,"setcolor\n");
}


/* Set a device color */
/* Set it by the rep with most components */
static	void ps_setcolor(trend *ss, xcal *cal, col *c) {
	ps_trend *s = (ps_trend *)ss; 
	double cdev[ICX_MXINKS];     /* Calibrated device color */

	if (cal != NULL)
		cal->interp(cal, cdev, c->dev);	
	else {
		int j;
		for (j = 0; j < c->n; j++)
			cdev[j] = c->dev[j];
	}

	if ((c->t & T_N) == 0)
		error("ps_setcolor with no device values set");

#ifndef FORCEN
	if (c->nmask == ICX_W) {
		if ((c->t & T_PRESET) == 0)
			fprintf(s->of,"%% Ref %s %s %f\n",c->id, c->loc, 100.0 * cdev[0]);

		if (c->altrep == 0) {	/* DeviceGray */
			fprintf(s->of,"%f setgray\n",cdev[0]);
		} else if (c->altrep == 4) {	/* DeviceRGB */
			fprintf(s->of,"%f %f %f setrgbcolor\n",cdev[0],cdev[0],cdev[0]);
		} else if (c->altrep == 5) {	/* Separation */
			fprintf(s->of,"[ /Separation (White) /DeviceGray { pop %f } ] setcolorspace\n",
			           cdev[0]);
			fprintf(s->of,"%f setcolor\n",cdev[0]);
		} else if (c->altrep == 6) {	/* DeviceN */
			gen_ncolor(s, c);
		} else {
			error("Device white encoding not approproate!");
		}

	} else if (c->nmask == ICX_K) {
		if ((c->t & T_PRESET) == 0)
			fprintf(s->of,"%% Ref %s %s %f\n",c->id, c->loc, 100.0 * cdev[0]);
		if (c->altrep == 0) {	/* DeviceGray */
			fprintf(s->of,"%f setgray\n",1.0 - cdev[0]);
		} else if (c->altrep == 1) {	/* DeviceCMYK */
			fprintf(s->of,"0.0 0.0 0.0 %f setcmykcolor\n",cdev[0]);
		} else if (c->altrep == 2) {	/* Separation */
			fprintf(s->of,"[ /Separation (Black) /DeviceGray { pop %f } ] setcolorspace\n",
			           1.0 - cdev[0]);
			fprintf(s->of,"%f setcolor\n",cdev[0]);
		} else if (c->altrep == 3) {	/* DeviceN */
			gen_ncolor(s, c);
		} else {
			error("Device black encoding not approproate!");
		}

	} else if (c->nmask == ICX_CMY) {
		if ((c->t & T_PRESET) == 0)
			fprintf(s->of,"%% Ref %s %s %f %f %f\n", c->id, c->loc,
			        100.0 * cdev[0], 100.0 * cdev[1], 100.0 * cdev[2]);

		if (c->altrep == 0) {			/* DeviceCMYK */
			fprintf(s->of,"%f %f %f 0.0 setcmykcolor\n",cdev[0],cdev[1],cdev[2]);
		} else if (c->altrep == 7) {	/* Inverted DeviceRGB */
			fprintf(s->of,"%f %f %f setrgbcolor\n",1.0-cdev[0],1.0-cdev[1],1.0-cdev[2]);
		} else if (c->altrep == 8) {	/* DeviceN */
			gen_ncolor(s, c);
		} else {
			error("Device CMY encoding not approproate!");
		}

	} else if (c->nmask == ICX_RGB || c->nmask == ICX_IRGB) {
		if ((c->t & T_PRESET) == 0)
			fprintf(s->of,"%% Ref %s %s %f %f %f\n",c->id, c->loc,
			       100.0 * cdev[0], 100.0 *cdev[1], 100.0 *cdev[2]);
		fprintf(s->of,"%f %f %f setrgbcolor\n",cdev[0],cdev[1],cdev[2]);

	} else if (c->nmask == ICX_CMYK) {
		if ((c->t & T_PRESET) == 0)
			fprintf(s->of,"%% Ref %s %s %f %f %f %f\n", c->id, c->loc,
			        100.0 * cdev[0], 100.0 * cdev[1], 100.0 * cdev[2], 100.0 * cdev[3]);
		fprintf(s->of,"%f %f %f %f setcmykcolor\n",cdev[0],cdev[1],cdev[2],cdev[3]);

	} else
#endif /* !FORCEN */
	       {	/* Device N */
		int i;
		if ((c->t & T_PRESET) == 0) {
			fprintf(s->of,"%% Ref %s %s",c->id, c->loc);
			for (i = 0; i < c->n; i++)
				fprintf(s->of,"%f ", 100.0 * cdev[i]);
			fprintf(s->of,"\n");
		}
		gen_ncolor(s, c);
	}

	/* Remember edge tracking color */
	et_color(c->rgb);
}

/* Generate a rectangle, with optional edge tracking */
/* Note the page coordinate origin is bottom left. */
static void ps_rectangle(trend *ss,
	double x, double y,		/* Top left corner of rectangle in mm from origin */
	double w, double h,		/* Width and height */
	char *id,				/* Patch id, NULL if not a diagnostic mark */
	int et					/* nz if use edge tracking on this */
) {
	ps_trend *s = (ps_trend *)ss; 

	if (w < 1e-6 || h < 1e-6)
		return;			/* Skip zero sized rectangle */
	y -= h;				/* Convert to bottom left corner */
	x = mm2pnt(x);
	y = mm2pnt(y);
	w = mm2pnt(w);
	h = mm2pnt(h);
	fprintf(s->of,"%f %f %f %f rect\n",w,h,x,y);

	if (et) {
		et_patch(id, x, y, w, h);
		et_edge(1, 0, x, y, y + h);
		et_edge(1, 1, x + w, y, y + h);
		et_edge(0, 0, y, x, x + w); 
		et_edge(0, 1, y + h, x, x + w);
	}
}

/* Generate one testpad hexagon. */
/* Note the page coordinate origin is bottom left. */
/* The hex always has left/right sides */
/* and peaks at the top and the bottom. */
static void ps_hexagon(trend *ss,
	double x, double y,		/* Top left vertex of hex mm from origin */
	double w, double h,		/* Width and height */
	int step,               /* Step number from 0 to figure odd/even */
	char *id				/* Patch id, NULL if not a diagnostic mark */
) {
	ps_trend *s = (ps_trend *)ss; 

	if (w < 1e-6 || h < 1e-6)
		return;			/* Skip zero sized rectangle */
	if ((step & 1) == 0) /* Even so left side of stagger */
		x -= 0.25 * w;
	else 				 /* Odd so right side of stagger */
		x += 0.25 * w;
	y = y - 5.0/6.0 * h;
	h *= 2.0/3.0;		/* Convert to hex side length */
	x = mm2pnt(x);
	y = mm2pnt(y);
	w = mm2pnt(w);
	h = mm2pnt(h);
	fprintf(s->of,"%f %f %f %f hex\n",w,h,x,y);
}

/* A centered string */
static void ps_string(trend *ss,
	double x, double y,		/* Bot Left Corner of rectangle in mm from origin */
	double w, double h,		/* Width and height */
	char *str				/* String */
) {
	ps_trend *s = (ps_trend *)ss; 

	if (fabs(w) < 1e-6 || fabs(h) < 1e-6)
		return;			/* Skip zero sized string */
	x = mm2pnt(x);
	y = mm2pnt(y);
	w = mm2pnt(w);
	h = mm2pnt(h);
	fprintf(s->of,"%f scaleTimes\n",h * 0.75);
	fprintf(s->of,"(%s) %f %f centerShow\n",str,x+w/2.0,y+h/2.0);
}

/* A vertically centered string */
static void ps_vstring(trend *ss,
	double x, double y,		/* Bot Right Corner of rectangle in mm from origin */
	double w, double h,		/* Width and height */
	char *str				/* String */
) {
	ps_trend *s = (ps_trend *)ss; 

	if (fabs(w) < 1e-6 || fabs(h) < 1e-6)
		return;			/* Skip zero sized string */
	x = mm2pnt(x);
	y = mm2pnt(y);
	w = mm2pnt(w);
	h = mm2pnt(h);
	fprintf(s->of,"%f scaleTimes\n",w * 0.75);
	fprintf(s->of,"(%s) %f %f vcenterShow\n",str,x-w/2.0,y+h/2.0);
}

/* A dotted line */
static void ps_dline(trend *ss,
	double x1, double y1,		/* Start of line */
	double x2, double y2,		/* End of line */
	double w					/* Width */
) {
	ps_trend *s = (ps_trend *)ss; 

	if (fabs(w) < 1e-6 || fabs(y2 - y1) < 1e-6)
		return;			/* Skip zero sized line */
	x1 = mm2pnt(x1);
	x2 = mm2pnt(x2);
	y1 = mm2pnt(y1);
	y2 = mm2pnt(y2);
	w = mm2pnt(w);
	fprintf(s->of,"[%f %f] %f setdash\n",mm2pnt(1.0),mm2pnt(2.0),mm2pnt(0.0));
	fprintf(s->of,"%f setlinewidth\n",w);
	fprintf(s->of,"newpath %f %f moveto %f %f lineto stroke\n",x1,y1,x2,y2);
}

/* Complete operations, then delete the object */ 
static void ps_del(trend *ss) {
	ps_trend *s = (ps_trend *)ss; 

	if (s->of) {
		fprintf(s->of,"\n");
		fprintf(s->of,"%%%%EOF\n");

		if (fclose(s->of))
			error ("Unable to close output file '%s'",s->fname);
	}
	if (s->fname)
		free(s->fname);

	free(s);
}

trend *new_ps_trend(
	char *fname,			/* File name */
	int npages,				/* Number of pages needed */
	int nmask,				/* Non zero if we are doing a DeviceN chart */
	double pw, double ph,	/* Page width and height in mm */
	int eps,				/* EPS flag */
	int nocups,				/* NZ to supress cups job ticket */
	int rand,				/* randomize */
	int rstart				/* Random start number/chart ID */
) {
	ps_trend *s;

	if ((s = (ps_trend *)calloc(1, sizeof(ps_trend))) == NULL) {
		return NULL;
	}

	s->startpage = ps_startpage;
	s->endpage = ps_endpage;
	s->setcolor = ps_setcolor;
	s->rectangle = ps_rectangle;
	s->hexagon = ps_hexagon;
	s->string = ps_string;
	s->vstring = ps_vstring;
	s->dline = ps_dline;
	s->del = ps_del;

	s->eps = eps;

	if ((s->of = fopen(fname,"w")) == NULL) {
		error ("Unable to open output file '%s'",fname);
	}

	if ((s->fname = strdup(fname)) == NULL)
		error("stdup of fname failed");
	
	/* Generate PS file prolog */
	{
		time_t clk = time(0);
		struct tm *tsp = localtime(&clk);
		int ipw, iph;

		ipw = (int)ceil(mm2pnt(pw));
		iph = (int)ceil(mm2pnt(ph));
		if (eps)
			fprintf(s->of,"%%!PS-Adobe-3.0 EPSF-3.0\n");
		else
			fprintf(s->of,"%%!PS-Adobe-3.0\n");
		fprintf(s->of,"%%%%Title: Argyll Color Calibration Target\n");
#ifdef FORCEN
		if (1) {
#else
		if (nmask != ICX_W		/* If not a Gray, RGB or CMYK device space */
		 && nmask != ICX_K
		 && nmask != ICX_RGB
		 && nmask != ICX_IRGB
		 && nmask != ICX_CMYK) {
#endif
			fprintf(s->of,"%%%%LanguageLevel: 3\n");
		} else {
			fprintf(s->of,"%%%%LanguageLevel: 1\n");
			if (nmask == ICX_CMYK)
				fprintf(s->of,"%%%%Extensions: CMYK\n");
		}

		fprintf(s->of,"%%%%Creator: Argyll target chart generator\n");
		fprintf(s->of,"%%%%For: The user who wants accurate color\n");
//	fprintf(s->of,"%%%%Version: %s\n",VERSION);
		fprintf(s->of,"%%%%CreationDate: %s",asctime(tsp));
		fprintf(s->of,"%%%%DocumentData: Clean7Bit\n");
		if (eps)
			fprintf(s->of,"%%%%Pages: %d\n",1);
		else
			fprintf(s->of,"%%%%Pages: %d\n",npages);
		fprintf(s->of,"%%%%PageOrder: Ascend\n");
		fprintf(s->of,"%%%%BoundingBox: %d %d %d %d\n",0,0,ipw-1,iph-1);
		fprintf(s->of,"%%%%Orientation: Portrait\n");		/* Rows are always virtical */
		if (!nocups)
			fprintf(s->of,"%%cupsJobTicket: cups-disable-cmm\n");
		fprintf(s->of,"%%%%EndComments\n");
		fprintf(s->of,"\n");
		if (!eps) {
			fprintf(s->of,"<< /PageSize [%d %d] >> setpagedevice\n",ipw, iph);
			fprintf(s->of,"\n");
		}
		fprintf(s->of,"%%%%BeginProlog\n\n");
#ifdef NEVER
		fprintf(s->of,"%% Duplicate nth element of stack\n");
		fprintf(s->of,"%% arguments: n, the offset from the element bellow the n\n");
		fprintf(s->of,"/dupn { 2 add dup -1 roll dup 3 -1 roll 1 roll } bind def\n");
		fprintf(s->of,"\n");
#endif
		fprintf(s->of,"%% arbitrary rectangle\n");
		fprintf(s->of,"%% arguments: w h x y\n");
		fprintf(s->of,"/rect { gsave \n");
		fprintf(s->of,"newpath\n");
		fprintf(s->of,"moveto\n");
		fprintf(s->of,"dup 0.0 exch rlineto\n");
		fprintf(s->of,"exch 0.0  rlineto\n");
		fprintf(s->of,"0.0 exch neg rlineto\n");
		fprintf(s->of,"closepath\n");
		fprintf(s->of,"fill\n");
		fprintf(s->of,"grestore } bind def\n");
		fprintf(s->of,"\n");
		fprintf(s->of,"%% hexagon with bottom left origin\n");
		fprintf(s->of,"%% arguments: w h x y\n");
		fprintf(s->of,"/hex { gsave \n");
		fprintf(s->of,"newpath\n");
		fprintf(s->of,"moveto\n");
		fprintf(s->of,"0 1 index rlineto\n");
		fprintf(s->of,"1 index 2 div 1 index 2 div rlineto\n");
		fprintf(s->of,"1 index 2 div 1 index 2 div neg rlineto\n");
		fprintf(s->of,"0 1 index neg rlineto\n");
		fprintf(s->of,"1 index 2 div neg 1 index 2 div neg rlineto\n");
		fprintf(s->of,"pop pop\n");
		fprintf(s->of,"closepath\n");
		fprintf(s->of,"fill\n");
		fprintf(s->of,"grestore } bind def\n");
		fprintf(s->of,"\n");
		fprintf(s->of,"%% set times-roman font\n");
		fprintf(s->of,"%% argument: scale\n");
		fprintf(s->of,"/scaleTimes {\n");
		fprintf(s->of,"/Times-Roman findfont\n");
		fprintf(s->of,"exch scalefont\n");
		fprintf(s->of,"setfont } bind def\n");
		fprintf(s->of,"\n");
		fprintf(s->of,"%% Print a centered string\n");
		fprintf(s->of,"%% argument: string, x, y\n");
		fprintf(s->of,"/centerShow {\n");
		fprintf(s->of,"gsave translate\n");
		fprintf(s->of,"newpath 0.0 0.0 moveto dup true charpath pathbbox\n");
		fprintf(s->of,"3 -1 roll sub exch 3 -1 roll sub\n");
		fprintf(s->of,"-0.5 mul exch -0.5 mul\n");
		fprintf(s->of,"moveto show grestore} bind def\n");
		fprintf(s->of,"\n");
		fprintf(s->of,"%% Print a vertically centered string\n");
		fprintf(s->of,"%% argument: string, x, y\n");
		fprintf(s->of,"/vcenterShow {\n");
		fprintf(s->of,"gsave translate 90.0 rotate\n");
		fprintf(s->of,"newpath 0.0 0.0 moveto dup true charpath pathbbox\n");
		fprintf(s->of,"3 -1 roll sub exch 3 -1 roll sub\n");
		fprintf(s->of,"-0.5 mul exch -0.5 mul\n");
		fprintf(s->of,"moveto show grestore} bind def\n");

		fprintf(s->of,"%%%%EndProlog\n");
		fprintf(s->of,"\n");

		if (rand != 0)
			fprintf(s->of,"%% RandomStart %d\n",rstart);
		else
			fprintf(s->of,"%% ChartID %d\n",rstart);
		fprintf(s->of,"\n");
	}

	return (trend *)s;
}

/* ==================================== */
/* TIFF raster output class */
/* We use the render library to do all the hard work. */

struct _tiff_trend {
	TREND_STRUCT
	
	render2d *r;		/* Raster renderer object */
	char *fname;
	color2d c;			/* Last set color */
	int comp;			/* Flag, use compression */

}; typedef struct _tiff_trend tiff_trend;

/* Start a page */
static void tiff_startpage(trend *ss, int pn) {
	tiff_trend *s = (tiff_trend *)ss; 

	/* Nothing to do */
}

/* End a page */
static void tiff_endpage(trend *ss) {
	tiff_trend *s = (tiff_trend *)ss; 

	/* Nothing to do */
}

/* set the color */
static	void tiff_setcolor(trend *ss, xcal *cal, col *c) {
	tiff_trend *s = (tiff_trend *)ss; 
	double cdev[ICX_MXINKS];     /* Calibrated device color */

	if (cal != NULL)
		cal->interp(cal, cdev, c->dev);	
	else {
		int j;
		for (j = 0; j < c->n; j++)
			cdev[j] = c->dev[j];
	}

	if ((c->t & T_N) == 0)
		error("tiff_setcolor with no device values set");

	if (c->nmask == ICX_W) {
		if (c->altrep == 0) {	/* DeviceGray */
			s->c[0] = cdev[0];
		} else if (c->altrep == 4) {	/* DeviceRGB */
			s->c[0] = cdev[0];
			s->c[1] = cdev[0];
			s->c[2] = cdev[0];
		} else if (c->altrep == 5) {	/* Separation */
			s->c[0] = cdev[0];
		} else if (c->altrep == 6) {	/* DeviceN single channel */
			s->c[0] = cdev[0];
		} else {
			error("Device white encoding not approproate!");
		}

	} else if (c->nmask == ICX_K) {
		if (c->altrep == 0) {	/* DeviceGray */
			s->c[0] = cdev[0];
		} else if (c->altrep == 1) {	/* DeviceCMYK */
			s->c[0] = 0.0;
			s->c[1] = 0.0;
			s->c[2] = 0.0;
			s->c[3] = cdev[0];
		} else if (c->altrep == 2) {	/* Separation */
			s->c[0] = cdev[0];
		} else if (c->altrep == 3) {	/* DeviceN single channel */
			s->c[0] = cdev[0];
		} else {
			error("Device black encoding not approproate!");
		}

	} else if (c->nmask == ICX_CMY) {
		if (c->altrep == 0) {			/* DeviceCMYK */
			s->c[0] = cdev[0];
			s->c[1] = cdev[1];
			s->c[2] = cdev[2];
			s->c[3] = 0.0;
		} else if (c->altrep == 7) {	/* Inverted DeviceRGB */
			s->c[0] = 1.0-cdev[0];
			s->c[1] = 1.0-cdev[1];
			s->c[2] = 1.0-cdev[2];
		} else if (c->altrep == 8) {	/* DeviceN three channel */
			s->c[0] = cdev[0];
			s->c[1] = cdev[1];
			s->c[2] = cdev[2];
		} else {
			error("Device CMY encoding not approproate!");
		}

	} else {
		int j;
		for (j = 0; j < s->r->ncc; j++)
			s->c[j] = cdev[j];
	}

	/* Remember edge tracking color */
	et_color(c->rgb);
}

/* A rectangle, with optional edge tracking */
static void tiff_rectangle(trend *ss,
	double x, double y,		/* Top left corner of rectangle in mm from origin */
	double w, double h,		/* Width and height */
	char *id,				/* Patch id, NULL if not a diagnostic mark */
	int et					/* nz if use edge tracking on this */
) {
	tiff_trend *s = (tiff_trend *)ss; 

	y -= h;				/* Convert to bottom left corner */
	s->r->add(s->r, new_rect2d(s->r, x, y, w, h, s->c));

	if (et) {
		et_patch(id, x, y, w, h);
		et_edge(1, 0, x, y, y + h);
		et_edge(1, 1, x + w, y, y + h);
		et_edge(0, 0, y, x, x + w); 
		et_edge(0, 1, y + h, x, x + w);
	}
}

/* A testpad hexagon. */
static void tiff_hexagon(trend *ss,
	double x, double y,		/* Top left vertex of hex mm from origin */
	double w, double h,		/* Width and height */
	int step,               /* Step number from 0 to figure odd/even */
	char *id				/* Patch id, NULL if not a diagnostic mark */
) {
	tiff_trend *s = (tiff_trend *)ss; 
	double vv[3][2];
	color2d cc[3];
	int i, j;

	if ((step & 1) == 0) /* Even so left side of stagger */
		x -= 0.25 * w;
	else 				 /* Odd so right side of stagger */
		x += 0.25 * w;
	y = y - 5.0/6.0 * h;
	h *= 2.0/3.0;		/* Convert to hex side length */

	/* Triangle color */
	for (i = 0; i < 3; i++)
		for (j = 0; j < s->r->ncc; j++)
			cc[i][j] = s->c[j];

	/* Top triangle */
	vv[0][0] = x;
	vv[0][1] = y + h;
	vv[1][0] = x + w;
	vv[1][1] = y + h;
	vv[2][0] = x + 0.5 * w;
	vv[2][1] = y + 1.5 * h;
	s->r->add(s->r, new_trivs2d(s->r, vv, cc));
	
	/* Center rectangle */
	s->r->add(s->r, new_rect2d(s->r, x, y, w, h, s->c));

	/* Bottom triangle */
	vv[0][0] = x;
	vv[0][1] = y;
	vv[1][0] = x + w;
	vv[1][1] = y;
	vv[2][0] = x + 0.5 * w;
	vv[2][1] = y - 0.5 * h;
	s->r->add(s->r, new_trivs2d(s->r, vv, cc));
}

/* A centered string */
static void tiff_string(trend *ss,
	double x, double y,		/* Bot Left Corner of rectangle in mm from origin */
	double w, double h,		/* Width and height */
	char *str				/* String */
) {
	tiff_trend *s = (tiff_trend *)ss; 
	double sw = 0.0, sh = 0.0;

	sh = h * 0.57;
	meas_string2d(s->r,&sw,NULL,timesr_b,str,sh,0);
	/* Center the string within the recangle */
	x += 0.5 * (w - sw);
	y += 0.5 * (h - sh);
	add_string2d(s->r,NULL,NULL,timesr_b,str,x,y,sh,0,s->c);
}

/* A vertically centered string */
static void tiff_vstring(trend *ss,
	double x, double y,		/* Bot Right Corner of rectangle in mm from origin */
	double w, double h,		/* Width and height */
	char *str				/* String */
) {
	tiff_trend *s = (tiff_trend *)ss; 
	double sw = 0.0, sh = 0.0;

	x -= w;		/* Make it bot left corner */
	sw = w * 0.57;
	meas_string2d(s->r,NULL, &sh,timesr_b,str,sw,3);
	/* Center the string within the recangle */
	x += 0.5 * (w + sw);
	y += 0.5 * (h - sh);
	add_string2d(s->r,NULL,NULL,timesr_b,str,x,y,sw,3,s->c);
}

/* A dotted line */
static void tiff_dline(trend *ss,
	double x0, double y0,		/* Start of line */
	double x1, double y1,		/* End of line */
	double w					/* Width */
) {
	tiff_trend *s = (tiff_trend *)ss; 

	add_dashed_line2d(s->r,x0,y0,x1,y1,w,1.0,2.0,0,s->c);
}

/* Complete operations, then delete the object */ 
static void tiff_del(trend *ss) {
	tiff_trend *s = (tiff_trend *)ss; 

	if (s->r != NULL) {
		s->r->write(s->r, s->fname, s->comp, NULL, NULL, tiff_file);
		s->r->del(s->r);
	}
	if (s->fname != NULL)
		free(s->fname);
	free(s);
}

static trend *new_tiff_trend(
	char *fname,				/* File name */
	int nmask,					/* Non zero if we are doing a DeviceN chart */
	depth2d dpth,				/* 8 or 16 bit */
	double pw, double ph,		/* Page width and height in mm */
	double marg,				/* Page margine in mm */
	double hres, double vres,	/* Resolution */
	int altrep,					/* printer grey/CMY representation type 0..8 */
	int ncha,					/* flag, use nchannel alpha */
	int comp,					/* flag, use compression */
	int dith					/* flag, 1 = use 8 bit stocastic dithering */
) {
	tiff_trend *s;
	color2d c;					/* Background color */
	colort2d csp;
	double ma[4];				/* Page margins */
	int nc = 0;
	int j;

	if ((s = (tiff_trend *)calloc(1, sizeof(tiff_trend))) == NULL) {
		error("Failed to create a tiff target rendering object");
	}

	s->startpage = tiff_startpage;
	s->endpage = tiff_endpage;
	s->setcolor = tiff_setcolor;
	s->rectangle = tiff_rectangle;
	s->hexagon = tiff_hexagon;
	s->string = tiff_string;
	s->vstring = tiff_vstring;
	s->dline = tiff_dline;
	s->del = tiff_del;

	if (nmask == ICX_W) {
		if (altrep == 0				/* DeviceGray */
		 || altrep == 5) {			/* Separation single channel */
			csp = w_2d;
			nc = 1;
		} else if (altrep == 4) {	/* DeviceRGB */
			csp = rgb_2d;
			nc = 3;
		} else if (altrep == 6) {	/* DeviceN single channel */
			csp = ncol_2d;
			nc = icx_noofinks(nmask);
			nc = 1;
		} else {
			error("Device white encoding not approproate");
		}

	} else if (nmask == ICX_K) {
		if (altrep == 0				/* DeviceGray */
		 || altrep == 2) {			/* Separation single channel */
			csp = k_2d;
			nc = 1;
		} else if (altrep == 1) {	/* DeviceCMYK */
			csp = cmyk_2d;
			nc = 4;
		} else if (altrep == 3) {	/* DeviceN single channel */
			csp = ncol_2d;
			nc = icx_noofinks(nmask);
			nc = 1;
		} else {
			error("Device black encoding not approproate");
		}

	} else if (nmask == ICX_RGB || nmask == ICX_IRGB) {
		csp = rgb_2d;
		nc = 3;

	} else if (nmask == ICX_CMY) {
		if (altrep == 0) {			/* DeviceCMYK */
			csp = cmyk_2d;
			nc = 4;
		} else if (altrep == 7) {	/* Inverted DeviceRGB */
			csp = rgb_2d;
			nc = 3;
		} else if (altrep == 8) {	/* DeviceN three channel */
			csp = ncol_2d;
			nc = icx_noofinks(nmask);
		} else {
			error("Device CMY encoding not approproate");
		}

	} else if (nmask == ICX_CMYK) {
		csp = cmyk_2d;
		nc = 4;
	} else {	/* Device N */
		if (ncha)
			csp = ncol_a_2d;
		else
			csp = ncol_2d;
		nc = icx_noofinks(nmask);
	}

	if (marg > 0)
		ma[0] = ma[1] = ma[2] = ma[3] = marg;
	else
		ma[0] = ma[1] = ma[2] = ma[3] = 0;

	if ((s->r = new_render2d(pw, ph, ma, hres, vres,  csp, nc, dpth, dith, NULL, NULL, 0.0)) == NULL) {
		error("Failed to create a render2d object for tiff output");
	} 

	/* We're going to assume this is all printed output, so */
	/* the background should be white. */
	if ((nmask & ICX_ADDITIVE)
	  || (nmask == ICX_CMY && altrep == 7)) {	/* CMY as inverted RGB */
		for (j = 0; j < nc; j++)
			c[j] = 1.0;
	} else {
		for (j = 0; j < nc; j++)
			c[j] = 0.0;
	}
	s->r->set_defc(s->r, c);

	s->comp = comp;

	if ((s->fname = strdup(fname)) == NULL)
		error("stdup of fname failed");

	return (trend *)s;
}


/* ====================================================== */

/* Convert XYZ represention into Lab, XYZ density and RGB */
void
col_convert(col *cp, double *wp) {

	if ((cp->t & T_XYZ) == 0 || (cp->t & T_N) == 0)
		error("gen_color needs XYZ and device colors set !");

	if ((cp->t & T_LAB) == 0) {
		icmXYZNumber w;
		w.X = wp[0];
		w.Y = wp[1];
		w.Z = wp[2];
		icmXYZ2Lab(&w, cp->Lab, cp->XYZ);
		cp->t |= T_LAB;
	}
	if ((cp->t & T_DEN) == 0) {
		icx_XYZ2Tdens(cp->den, cp->XYZ);

#ifdef DEN_COMPRESS
		/* Compress densities > 1.0, 2:1 */
		{
			int e;
			for (e = 0; e < 3; e++) {
				if (cp->den[e] > 1.0)
					cp->den[e] = 1.0 + (cp->den[e] - 1.0) * 0.5;
			}
		}
#endif /* DEN_COMPRESS */
		cp->t |= T_DEN;
	}

	if ((cp->t & T_RGB) == 0) {
		icx_XYZ2sRGB(cp->rgb, wp, cp->XYZ);
		cp->t |= T_RGB;
	}
}

/* return the middle of 3 values */
double mid3(double a, double b, double c) {

	if ((a < b && a > c) || (a < c && a > b))
		return a;
	if ((b < a && b > c) || (b < c && b > a))
		return b;
	return c;
}

/* return the vector difference of 3 values */
double vec3(double a, double b, double c) {

	return sqrt(a * a + b * b + c * c);
}

/* Type of density rule to use with color patches/spacers. */
/* This really depends on the algorithm used by the strip */
/* reading instrument. For an Xrite DTP41, it appears that */
/* using max3 is the best. This agrees with their documentation, */
/* that it is looking for the largest change in one of the three */
/* channels. Another make of instrument might use a different */
/* algorithm. */
/* Choices are: */
/* max3 - aim for largest change to be greatest */
/* mid3 - aim for middle change to be greatest */
/* min3 - aim for minimum change to be greatest */
/* vec3 - aim for the vector change to be greatest */

#define RULE3 max3

/* Setup a suitable spacer color, and */
/* Return the worst case density difference. */
double setup_spacer(
col **psc,		/* Return pointer to spacer color */
col *pp,		/* Previous patch color */
col *cp,		/* Current patch color */
col *pcol,		/* 8 pre-defined spacer colors */
int sptype,		/* Spacer type code, -1 = none, */
				/* 0 = No spacer, 1 = b&W spacer, */
				/* 2 = colored */
int usede		/* Aim for maximum delta E rather than density */
) {
	col *sc = NULL;	/* Spacer chosen */
	double dd, pdd;

//printf("~1\n");
//printf("~1 setting spacer between %s (%s) and %s (%s)\n",pp->loc, pp->id, cp->loc, cp->id);

	/* Compute contrast between the patches */
	if (usede) {
		pdd = icmLabDE(pp->Lab, cp->Lab); 
	} else {
		/* return the density contrast between the patches */
		if (pp->nmask == ICX_W
		 || pp->nmask == ICX_K) {	/* If only capable of single density */

			pdd = fabs(pp->den[3] - cp->den[3]);
//printf("~1 computed B&W diff of %f\n",dd);

		} else {
			pdd = RULE3(fabs(pp->den[0] - cp->den[0]),
			            fabs(pp->den[1] - cp->den[1]),
			            fabs(pp->den[2] - cp->den[2]));

//printf("~1 computed color diff of %f\n",dd);
		}
	}

	if (sptype <= 0)	/* No spacers */
		return pdd;

	if (pp->nmask == ICX_W
	 || pp->nmask == ICX_K) {	/* If only capable of single density */
		sptype = 1;				/* Force to B&W spacer */
	}

	if (sptype == 1) {			/* B&W spacer */
		double d1, d2;

		if (usede) {
			/* Choose whether space should be white or black */
			/* Shoose color that has greatest worst contrast */
			d1 = min2(icmLabDE(pcol[0].Lab, pp->Lab), icmLabDE(pcol[0].Lab, cp->Lab));
			d2 = min2(icmLabDE(pcol[7].Lab, pp->Lab), icmLabDE(pcol[7].Lab, cp->Lab));

//printf("~1 worst difference to white = %f\n", d1);
//printf("~1 worst difference to black = %f\n", d2);

			if (d1 > d2) {
//printf("~1 chosen white\n");
				sc = &pcol[0];
				dd = d1;
			} else {
//printf("~1 chosen black\n");
				sc = &pcol[7];
				dd = d2;
			}

		} else {
			/* Choose whether space should be white or black */
			/* Shoose color that has greatest worst contrast */
			d1 = min2(fabs(pcol[0].den[3] - pp->den[3]), fabs(pcol[0].den[3] - cp->den[3]));
			d2 = min2(fabs(pcol[7].den[3] - pp->den[3]), fabs(pcol[7].den[3] - cp->den[3]));

//printf("~1 worst difference to white = %f\n", d1);
//printf("~1 worst difference to black = %f\n", d2);

			if (d1 > d2) {
//printf("~1 chosen white\n");
				sc = &pcol[0];
				dd = d1;
			} else {
//printf("~1 chosen black\n");
				sc = &pcol[7];
				dd = d2;
			}
		}

	} else {				/* else colored spacer */
		int ii, i;

		/* Check out all the possible space values for the one that gives the best */
		/* and second best contrast to each edge */

		if (usede) {

			/* for all possible spacer colors */
			dd = -1.0;
			for (i = 0; i < 8; i++) {
				double bb;

				bb = min2(icmLabDE(pcol[i].Lab, pp->Lab), icmLabDE(pcol[i].Lab, cp->Lab));

				/* Worst of two edges best is better than any previous */
				if (bb > dd) {
					dd = bb;		/* Worst color of worst edge */
					ii = i;
					sc = &pcol[i];
				}
			}

		} else {
			/* for all possible spacer colors */
			dd = -1.0;
			for (i = 0; i < 8; i++) {
				double b1, b2, bb;

				b1 = RULE3(fabs(pcol[i].den[0] - pp->den[0]),
				          fabs(pcol[i].den[1] - pp->den[1]),
				          fabs(pcol[i].den[2] - pp->den[2]));

				b2 = RULE3(fabs(pcol[i].den[0] - cp->den[0]),
				          fabs(pcol[i].den[1] - cp->den[1]),
				          fabs(pcol[i].den[2] - cp->den[2]));

				bb = min2(b1, b2);	/* Worst of two edges */

				/* Worst of two edges best is better than any previous */
				if (bb > dd) {
					dd = bb;		/* Worst color of worst edge */
					ii = i;
					sc = &pcol[i];
				}
			}
		}
	}

//printf("~1 returning spacer contrast %f + patch contrast %f\n",dd,pdd);
	if (psc != NULL)
		*psc = sc;			/* Return pointer to chosen spacer */

	return 0.6 * dd + 0.4 * pdd;	/* Return propotion of spacer and patch contrast */
}

/* Given two patches, compute the density difference between them */
double density_difference(
col *p1,		/* Previous patch color */
col *p2,		/* Current patch color */
int usede		/* Aim for maximum delta E rather than density */
) {
	double dd, pdd;

	/* Compute contrast between the patches */
	if (usede) {
		pdd = icmLabDE(p1->Lab, p2->Lab); 
	} else {
		/* return the density contrast between the patches */
		if (p1->nmask == ICX_W
		 || p1->nmask == ICX_K) {	/* If only capable of single density */

			pdd = fabs(p1->den[3] - p2->den[3]);

		} else {
			pdd = RULE3(fabs(p1->den[0] - p2->den[0]),
			            fabs(p1->den[1] - p2->den[1]),
			            fabs(p1->den[2] - p2->den[2]));

		}
	}

	return pdd;
}

/* Given a number, return the DTP20 SID patch encoding. */
/* return nz on error */
static int dtp20_enc(
	col *pcol,			/* pcol[8] of spacer patch colors */
	int ndig,			/* Number of octal digits/patches */
	int lend,			/* NZ if little endian order for SID row index */
	col **ppcol,		/* return the pointers to pcol for the encoding */
	unsigned int rix	/* Number to encode */
) {
	int si, ei, ii;
	int i, wv = rix;

	if (lend) 			/* Little endian order */
		si = 0, ei = ndig, ii = 1;
	else
		si = ndig-1, ei = -1, ii = -1;

	/* LSB to MSB octal */
	for (i = si; i != ei; i += ii) {
		int j, k;
		j = wv % 8;		/* Digit value */
		wv /= 8;
		for (k = 0; k < 8; k++) {
			if (pcol[k].dtp20_octval == j)
				break;
		}
		if (k >= 8)
			return 1;		/* Something weird happened */
		ppcol[i] = &pcol[k];
	}
	if (wv != 0)
		return 1;			/* Number is too big to be encoded */
//printf("~1dtp20_enc %d ->",rix);
//for (i = 0; i < ndig; i++)
//	printf(" %d",ppcol[i]->dtp20_octval);
//printf("\n");
	return 0;
}


/* Sort function for stree */
static int cmp_eperr(const void *p1, const void *p2) {
	return ((col *)p1)->wnd == ((col *)p2)->wnd ? 0 :
	                           (((col *)p1)->wnd < ((col *)p2)->wnd ? -1 : 1);
}

#define SYMWT 1.3	/* Amount to discount direction delta E compared to spacers */

/* Setup the randomised index. */
/* The index only covers test sample patches, not TID or max/min/SID patches */
void setup_randix(
int *rix,			/* Index lookup array to fill in */
int npat,			/* Number of test targets needed */
int rand,			/* Randomise flag */
int rstart,			/* Starting index for random */
int verb,			/* Verbose flag */
col *cols,			/* Array of colors to be put on target chart */
col *pcol,			/* 8 spacer colors */
int tpprow,			/* Test sample patches per row */
int spacer,			/* Spacer code, 0 = None, 1 = b&w, 2 = colored */
int needpc,			/* Need patch to patch contrast in a row */
int domaxmin,		/* Top and tail strip with max/min or SID.  0 = DTP51, 2 = DTP20 SID */
col *media,			/* Alias for media color */
int usede			/* NZ to use delta E rather than density */
) {
	int i;
	randix *r = NULL;	/* Random index order object */

	if (rand)
		r = new_randix(npat, rstart);

	/* Setup initial linear or randomised index */
	for (i = 0; i < npat; i++) {
		if (rand) {
			rix[i] = r->next(r);
		} else {
			rix[i] = i;
		}
		cols[rix[i]].ix = i;	 /* This colors random index */
	}
	rix[i] = 0;		/* npat+1 may be read, so fill extra entry at end. */

	if (rand)
		r->del(r);

	/* Setup initial contrast check */
	{
		col *pp, *cp, *np, *op;	/* Previous, current, next and opposite patch */
		col *maxd;			/* Alias for maximum density  */
		col *mind;			/* Alias for minimum density */
		aat_atree_t *stree;	/* Tree holding colors sorted by worst case contrast */
		aat_atrav_t *aat_tr;	/* Tree accessor */
		double temp, trate;	/* Annealing temperature & rate */
		double tstart, tend;/* Annealing chedule range */

		mind = &pcol[0];		/* White */
		maxd = &pcol[7];		/* Black */

		/* Create sorted tree so as to be able to locate the largest wnd */
		if ((stree = aat_anew(cmp_eperr)) == NULL)
			error("Allocating aat tree for colors failed");
		if ((aat_tr = aat_atnew()) == NULL)
			error("aat_atnew returned NULL");

		for (i = 0; i < npat; i++) {
			int j, k;		/* Patch index, Row index */
			int tpitr;		/* Test patches in this row */
			double tt;
	
			j = (i % tpprow);
			k = i / tpprow;

			/* Figure previous patch */
			if (j == 0) {			/* First in row */
				if (domaxmin == 1)
					pp = maxd;		/* Maxd will be before first patch */
				else if (domaxmin == 2) {
					col *ppcol[3];
					/* Compute the SID colors the DTP20 will use before row */
					if (dtp20_enc(pcol, 3, 1, ppcol, k+1) != 0)
						error("Internal, dtp20 SID row id failed, val %d, digits %d",k+1,3);
					pp = ppcol[2];	/* Barcode patch next to first test patch */
				} else
					pp = media;		/* Media will be before first patch */
			} else {
				pp = &cols[rix[i-1]];
			}

			/* Current patch */
			cp = &cols[rix[i]];

			/* Next patch */
			if (j == (tpprow-1) || i == (npat-1)) { /* Last in row or last patch */
				if ((j == (tpprow-1) || i == (npat-1)) && domaxmin == 1)
					np = mind;
				else if ((j == (tpprow-1) || i == (npat-1)) && domaxmin == 2)
					np = mind;		/* DTP20 has white trailing patch */
				else
					np = media;
			} else {
				np = &cols[rix[i+1]];
			}

			/* Opposite patch */
			
			if (k == npat/tpprow)	/* Last row */
				tpitr = npat - tpprow * (npat/tpprow);
			else
				tpitr = tpprow;
			op = &cols[rix[ k * tpprow + (tpitr -1 - j)]];

			/* Setup pointers and worst case contrast */
			cp->nc[0] = pp;
			cp->nc[1] = np;
			cp->oc = op;
			cp->wnd = setup_spacer(NULL, pp, cp, pcol, spacer, usede);
			tt      = setup_spacer(NULL, cp, np, pcol, spacer, usede);
			if (tt < cp->wnd)
				cp->wnd = tt;
			if (cp != op) {
				tt = SYMWT * density_difference(cp, op, usede);
				if (tt < cp->wnd)
					cp->wnd = tt;
			}

			/* Insert it into the sorted list */
			if ((aat_ainsert(stree, (void *)cp)) == 0)
				error("aat_ainsert color %d failed",i);
		}

		if (verb) {
			double wrdc = 1e300;

			if ((cp = aat_atfirst(aat_tr, stree)) == NULL)
				error("There seem to be no colors in the tree");
			if (usede)
				printf("Worst case delta E = %f\n", cp->wnd);
			else
				printf("Worst case density contrast = %f\n", cp->wnd);

			/* Evaluate each strips direction confusion */
			for (i = 0; ; i++) {
				int j, tpitr;		/* Test patches in this row */
				double tot = 0.0;
				if ((i * tpprow) >= npat)
					break;
				if (i == npat/tpprow)	/* Last row */
					tpitr = npat - tpprow * (npat/tpprow);
				else
					tpitr = tpprow;
	
				for (tot = 0.0, j = 0; j < tpitr; j++) {
					tot += density_difference(&cols[rix[ i * tpprow + j]],
					                          &cols[rix[ i * tpprow + (tpitr -1 - j)]], usede);
 				}
				tot /= tpitr;
				if (tot < wrdc)
					wrdc = tot;
			}
			if (usede)
				printf("Worst case direction distinction delta E = %f\n", wrdc);
			else
				printf("Worst case direction distinction density contrast = %f\n", wrdc);
		}

		if (needpc == 0 || !rand || npat < 3)
			return;		/* Current order is sufficient */

		if (verb) {
			printf("Optimising layout for strip reader:\n");
			printf(" 0%%"); fflush(stdout);
		}

		if (spacer == 2) {	/* Colored spacer, don't optimise too hard */
			tstart = 0.4;
			tend   = 0.00001;
			trate  = 0.87;
		} else {			/* No spacer or B&W spacer, do more optimisation */
			tstart = 0.4;
			tend   = 0.000005;
			trate  = 0.95;
		}
		/* Simulated anealing */
		for (temp = tstart; temp > tend; temp *= trate) {

			int ii, itlim;	/* Maximum passes at a temperature */
			int nsuc = 0;	/* Number that succeed */
			int suclim;		/* Number of successful changes before continuing */

			if (spacer == 2) {	/* Colored spacer, don't optimise too hard */
				itlim = npat * 10;
				suclim = npat;
			} else {
				itlim = npat * 14;
				suclim = npat;
			}

			if (verb) {		/* Output percent intervals */
				double pc;
	
				pc = (log(temp) - log(tstart))/(log(tend) - log(tstart));
				printf("%c%2d%%",cr_char,(int)(100.0 * pc+0.5)); fflush(stdout);
			}

			/* Improve the ordering */
			for (ii = 0; ii < itlim ; ii++) { 
				col *p1, *p2;
				double tt, de;

				/* Chose another patch to try swapping worst with */
				p1 = aat_atfirst(aat_tr, stree);	/* worst */
				for (;;) {
					tt = d_rand(0.0, 1.0);
					p2 = &cols[(int)(tt * (npat-1.0))];	/* Swap candidate */
					if (p1 != p2 && p2 != p1->oc)
						break;		/* Swap is not the worst or opposite */
				}

				/* Check p1 in p2's place */
				de = setup_spacer(NULL, p2->nc[0], p1, pcol, spacer, usede);
				tt = setup_spacer(NULL, p1, p2->nc[1], pcol, spacer, usede);
				if (tt < de)
					de = tt;
				tt = SYMWT * density_difference(p2->oc, p1, usede);
				if (tt < de)
					de = tt;

				/* Check p2 in p1's place */
				tt = setup_spacer(NULL, p1->nc[0], p2, pcol, spacer, usede);
				if (tt < de)
					de = tt;
				tt = setup_spacer(NULL, p2, p1->nc[1], pcol, spacer, usede);
				if (tt < de)
					de = tt;
				tt = SYMWT * density_difference(p1->oc, p2, usede);
				if (tt < de)
					de = tt;

				de = de - p1->wnd;		/* Increase in worst difference */

				/* If this swap will improve things, or temp is high enough, */
				/* then actually do the swap. */
				if (de > 0.0
				   || d_rand(0.0, 1.0) < exp(de/temp)) {
					int t;
					col *tp0, *tp1;

					nsuc++;

//printf("~1 temp = %f, ii = %d, swapping %d and %d\n",temp,ii,p1->i, p2->i);
 
					/* Remove them from the tree */
					if ((aat_aerase(stree, (void *)p1)) == 0)
						error("aat_aerase failed to find color  no %d", p1->i);
					if ((aat_aerase(stree, (void *)p2)) == 0)
						error("aat_aerase failed to find color  no %d", p2->i);

					/* Swap them in random index list */
					rix[p1->ix] = p2->i; 
					rix[p2->ix] = p1->i; 
					t = p1->ix; 
					p1->ix = p2->ix; 
					p2->ix = t;

					/* Swap their neighbors, taking care */
					/* of the situation if they are neigbors */
					tp0 = p1->nc[0];
					tp1 = p2->nc[0];
					if (tp0 == p1)
						tp0 = p2;
					else if (tp0 == p2)
						tp0 = p1;
					if (tp1 == p1)
						tp1 = p2;
					else if (tp1 == p2)
						tp1 = p1;
					p2->nc[0] = tp0;
					p1->nc[0] = tp1;

					tp0 = p1->nc[1];
					tp1 = p2->nc[1];
					if (tp0 == p1)
						tp0 = p2;
					else if (tp0 == p2)
						tp0 = p1;
					if (tp1 == p1)
						tp1 = p2;
					else if (tp1 == p2)
						tp1 = p1;
					p2->nc[1] = tp0;
					p1->nc[1] = tp1;

					/* Swap their opposites (they cannot be opposites of each other) */
					p1->oc->oc = p2;
					p2->oc->oc = p1;
					tp0 = p1->oc;
					p1->oc = p2->oc;
					p2->oc = tp0;

					/* Reset backwards references */
					p1->nc[0]->nc[1] = p1;
					p1->nc[1]->nc[0] = p1;
					p2->nc[0]->nc[1] = p2;
					p2->nc[1]->nc[0] = p2;

					/* re-compute contrast to neighbors */
					p1->wnd = setup_spacer(NULL, p1->nc[0], p1, pcol, spacer, usede);
					tt      = setup_spacer(NULL, p1, p1->nc[1], pcol, spacer, usede);
					if (tt < p1->wnd)
						p1->wnd = tt;
					if (p1 != p1->oc) {
						tt = SYMWT * density_difference(p1, p1->oc, usede);
						if (tt < p1->wnd)
							p1->wnd = tt;
					}

					p2->wnd = setup_spacer(NULL, p2->nc[0], p2, pcol, spacer, usede);
					tt      = setup_spacer(NULL, p2, p2->nc[1], pcol, spacer, usede);
					if (tt < p2->wnd)
						p2->wnd = tt;
					if (p2 != p2->oc) {
						tt = SYMWT * density_difference(p2, p2->oc, usede);
						if (tt < p2->wnd)
							p2->wnd = tt;
					}

					/* (!!! We haven't recomputed the possible change in the ->oc's */
					/* ->wnd due to it's opposite haveing changed. !!!) */

					/* Add them back to the tree */
					if ((aat_ainsert(stree, (void *)p1)) == 0)
						error("aat_ainsert color no %d failed",p1->i);
					if ((aat_ainsert(stree, (void *)p2)) == 0)
						error("aat_ainsert color no %d failed",p2->i);

#ifdef NEVER
printf("~1 current list = \n");
for (cp = aat_atfirst(aat_tr, stree); cp != NULL; cp = aat_atnext(aat_tr))
	printf("%d: %f\n",cp->i,cp->wnd);
cp = aat_atfirst(aat_tr, stree);
printf("~1 worst case contrast = %f, list index %d, id '%s', loc '%s'\n",
cp->wnd, cp->i,cp->id,cp->loc);
printf("~1 neighbor list index %d, id '%s', loc '%s'\n",
cp->nc[0]->i,cp->nc[0]->id,cp->nc[0]->loc);
printf("~1 neighbor list index %d, id '%s', loc '%s'\n",
cp->nc[1]->i,cp->nc[1]->id,cp->nc[1]->loc);
#endif

					if (nsuc > suclim)
						break;
				}
			}
		}

		if (verb) {
			double wrdc = 1e300;
			if ((cp = aat_atfirst(aat_tr, stree)) == NULL)
				error("There seem to be no colors in the tree");
			if (usede)
				printf("%c100%%\nAfter optimisation, worst delta E = %f\n",cr_char,cp->wnd);
			else
				printf("%c100%%\nAfter optimisation, density contrast = %f\n",cr_char,cp->wnd);

			/* Evaluate each strips direction confusion */
			for (i = 0; ; i++) {
				int j, tpitr;		/* Test patches in this row */
				double tot = 0.0;
				if ((i * tpprow) >= npat)
					break;
				if (i == npat/tpprow)	/* Last row */
					tpitr = npat - tpprow * (npat/tpprow);
				else
					tpitr = tpprow;
	
				for (tot = 0.0, j = 0; j < tpitr; j++) {
					tot += density_difference(&cols[rix[ i * tpprow + j]],
					                          &cols[rix[ i * tpprow + (tpitr -1 - j)]], usede);
 				}
				tot /= tpitr;
				if (tot < wrdc)
					wrdc = tot;
			}
			if (usede)
				printf("Worst case direction distinction delta E = %f\n", wrdc);
			else
				printf("Worst case direction distinction density contrast = %f\n", wrdc);
		}


		aat_atdelete(aat_tr);
		aat_adelete(stree);

	}

}

#define MAXPPROW 500		/* Absolute maximum patches per pass/row permitted */
#define MAXROWLEN 2000.0	/* Absolute maximum row length */

void
generate_file(
instType itype,		/* Target instrument type */
char *bname,		/* Output file basename */
col *cols,			/* Array of colors to be put on target chart */
int npat,			/* Number of test targets needed */
xcal *cal,			/* Optional printer calibration, NULL if none */
char *label,		/* Per strip label */
double pw,			/* Page width */
double ph,			/* Page height */
double bord, 		/* Border margin in mm */
int nosubmarg,		/* NZ if bord is not to be subtracted from raster */
int nollimit,		/* NZ to not limit the strip length */
int nolpcbord,		/* NZ to suppress left paper clip border */
int rand,			/* Randomise flag */
int rstart,			/* Starting index for random */
alphix *saix,		/* Strip alpha index object */
alphix *paix,		/* Patch alpha index object */
int ixord,			/* Index order, 0 = strip then patch */
double pscale,		/* Test patch & spacers scale factor */
double sscale,		/* Spacers scale factor */
int hflag,			/* Spectroscan/Munki high density modified */
int verb,			/* Verbose flag */
int scanc,			/* Scan compatible bits, 1 = .cht gen, 2 = wide first row */
int oft,			/* PS/EPS/TIFF select (0,1,2) */
int nocups,			/* NZ to supress cups job ticket in PS/EPS */
depth2d tiffdpth,	/* TIFF pixel depth */
double tiffres,		/* TIFF resolution in DPI */
int ncha,			/* flag, use nchannel alpha */
int tiffdith,		/* flag, nz to use TIFF 8 bit dithering */
int tiffcomp,		/* flag, nz to use TIFF compression */
int spacer,			/* Spacer code, -1 = default, 0 = None, 1 = b&w, 2 = colored */
int nmask,			/* DeviceN mask */
int altrep,			/* printer grey/CMY representation type 0..8 */
col *pcol,			/* 8 spacer colors or 8 barcode colors for DTP20 */
double *wp,			/* Approximate white XYZ point */
int *ptpprow,		/* Return Test sample patches per row */
unsigned char **pprps,	/* Return malloced array holding Passes per strip */
double *p_patchlen,	/* Return patch length in mm */
double *p_gaplen,	/* Return gap length in mm */
double *p_taplen,	/* Return trailer length in mm */
int *p_npat			/* Return number of patches including padding */
) {
	char psname[MAXNAMEL+20];		/* Name of output file */
	trend *tro = NULL;		/* Target rendering object */
	double x1, y1, x2, y2;	/* Bounding box in mm */
	double iw, ih;			/* Imagable areas width and height in mm */
	double arowl;			/* Available row length */

	int hex = 0;			/* Hexagon patches flag (Spectrolino) */
	double stagger = 0.0;	/* Stagger alternate rows by half patch length */ 

	/* Chart definition variables. Set to default and override */
	/* for particular instruments. */
	double lbord = 0.0;	/* Additional left border */
	int domaxmin = 0;	/* if == 1, Top and tail strip with max and min values (DTP51) */
						/* if == 2, Top and tail with  DTP20 strip identification (SID) */
	int nmaxp = 0;		/* Number of max (header) patches for max/min/sid */
	int nminp = 0;		/* Number of min (trailer) patches for max/min/sid */
	int nextrap = 0;	/* Number of extra patches for max and min = nmaxp + nminp */
	int needpc = 0;		/* Need patch to patch contrast in a row */
	int dorspace = 0;	/* Do a rrsp from center of last patch to cut line & print label. */
	int dopglabel = 0;	/* Write a per page label */	
	double pglth = 0.0;	/* Page Label text height */
	int padlrow = 0;	/* flag - Pad the last row with white */
	double lspa = 0.0;	/* Leader space before first patch containint border, label, SID etc. */
	double lcar = 0.0;	/* Leading clear area before first patch. Will be white */
	double plen = 0.0;	/* Patch min length */
	double tidplen = 0.0;	/* TID Patch min length */
	double pspa = 0.0;	/* Patch to patch spacer */
	double tspa = 0.0;	/* Clear space after last patch */
	double txhi = 0.0;	/* Step/cut, row label text height */
	double txhisl = 0.0;/* Strip/column label text height */
	int docutmarks = 0;	/* Generate strip cut marks */
	double clwi = 0.0;	/* Cut line width */

	int dorowlabel = 0;	/* Generate a set of row labels */
	double rlwi = 0.0;	/* Row label test width */

	double hxew = 0.0;	/* Hexagon chart extra width padding to the right of patches */
	double hxeh = 0.0;	/* Hexagon chart extra height padding around patches */

	double pwid = 0.0;	/* Patch min width */
	double rrsp = 0.0; 	/* Row to row spacing */
	double pwex = 0.0;	/* Patch width expansion between rows of a strip */

	int mxpprow = 0;	/* Maximum patches per row permitted (including min/max patches) */
	double mxrowl = 0;	/* Maximum row length for patchs (including min/max patches) */
						/* Number of patches is strip by whichever is shorter */
	int tidrows = 0;	/* Rows on first page for target ID (ie. DTP20) */
	int tidtype = 0;	/* Target ID type. 0 = DTP20 */
	int tidminp = 0;	/* Target ID minumum number of patches */
	int tidpad = 0;		/* Initial padding to place TID near middle */
	int tidnpat = npat;	/* Number of test targets needed, including TID row */
	int rpstrip = 0;	/* Rows per strip */
	int usede = 0;		/* Use delta E to maximize patch/spacer conrast rather than density */

	double mints, minbs;	/* Minimum top & bottom space from paper edges */
	double amints, aminbs;	/* Actual mints & minbs, allowing for unused space */
	double swid;	/* Whole strip width */
	int pprow;		/* patches per row (inc. max/min/sid patches) */
	int tidpprow;	/* TID patches per row (inc. max/min/sid patches) */
	int tpprow;		/* test patches per row (excludes max/min/sid patches) */
	int sppage;		/* whole & partial strips per page */
	int rppstrip;	/* rows per partial strip on whole page */
	int npages;		/* Number whole & partial pages */
	int lsppage;	/* Last page whole & partial strips per page */
	int lrpstrip;	/* Last strips whole & partial rows per strip */
	int lpprow;		/* last row patches per row (inc. max/min/sid patches) */
	int ppstrip;	/* Real patches per whole strip */
	int pppage;		/* Real patches per whole page */
	int rem;		/* temporary */
	double sxwi = 0.0;	/* Scan compatible first row extra width */

	int *rix;	/* Random index lookup (Logical -> patch index) */
	int i;		/* Logical patch in target list */
	int l_si;	/* Last start of page value of i */
	int ix;		/* Patch index in target list */
	int pir;	/* Patch in row */
	int ris;	/* Row in strip */
	int sip;	/* Set in page (including partial strip) */
	int pif;	/* Page in file */
	double x = 0.0, y = 0.0;	/* Current position */
	col *pp = NULL, *cp = NULL;	/* Previous and current printed patch colors */
	int cpf = 0;				/* Current patch special flag. 1 = start bit, 2 = stop bit */
	int slix;	/* Strip label index, -1 for TID  */
	char *slab = NULL;	/* Strip label string */
	unsigned char *rpsp;	/* Rows per strip, pointer */
	col *mark;	/* Alias for mark color */
	col *media;	/* Alias for media color */
	col *maxd;	/* Alias for minimum density  */
	col *mind;	/* Alias for maximum density */
	col *sc;	/* Alias for current spacer color */

	/* Note pcol[] is setup by targen to be:
		0 = white
		1 = Cyan
		2 = Magenta
		3 = Blue
		4 = Yellow
		5 = Green
		6 = Red
		7 = Black
		8 = 50/50/50 CMY Grey
		(Should switch to symbols for these ??)
	 */

	/* We assume that since this is intended for a printer, */
	/* the media is always white. This may not be the case */
	/* on other output media. */
	if (itype == instDTP20)
		mark  = &pcol[8];		/* Grey */
	else
		mark  = &pcol[7];		/* Black */
	media = &pcol[0];		/* White */
	mind = &pcol[0];		/* White */
	maxd = &pcol[7];		/* Black */

	/* Setup DTP20 bar code encoding for spacers. */
	pcol[0].dtp20_octval = 0;	/* White */
	pcol[0].dtp20_psize  = 6.5;
	pcol[1].dtp20_octval = 4;	/* Cyan */
	pcol[1].dtp20_psize  = 10.0;
	pcol[2].dtp20_octval = 2;	/* Magenta */
	pcol[2].dtp20_psize  = 0.0;
	pcol[3].dtp20_octval = 6;	/* Blue */
	pcol[3].dtp20_psize  = 12.5;
	pcol[4].dtp20_octval = 1;	/* Yellow */
	pcol[4].dtp20_psize  = 7.0;
	pcol[5].dtp20_octval = 5;	/* Green */
	pcol[5].dtp20_psize  = 0.0;
	pcol[6].dtp20_octval = 3;	/* Red */
	pcol[6].dtp20_psize  = 0.0;
	pcol[7].dtp20_octval = 7;	/* Black */
	pcol[7].dtp20_psize  = 13.0;

	/* Setup .cht edge tracking information */
	et_init();
	et_height(oft != 2 ? mm2pnt(ph) : ph);
	et_media(media->rgb);

	/* Set Instrument specific parameters */
	if (itype == instDTP20) { 	/* Xrite DTP20 */
		hex = 0;				/* No hex for strip instruments */
		hxew = hxeh = 0.0;		/* No extra padding because no hex */
		domaxmin = 2;			/* Print SID patches */
		nmaxp = 4;				/* Extra header patches */
		nminp = 1;				/* Extra trailer patches */
		nextrap = nmaxp + nminp;/* Number of extra patches for max and min */
		dorspace = 0;			/* Maximise number of rows */
		dopglabel = 1;			/* Write a per page label */
		padlrow = 1;			/* Pad the last row with white */
		spacer = 0;				/* No Spacer between patches */
		pspa  = 0.0;			/* No spacer width */
		usede = 1;				/* Use delta E to maximize patch/spacer conrast */
		needpc = 1;				/* Helps to have patch to patch contrast in a row ? */
		lspa  = bord + 5.0 + 5.0;	/* Leader space before first patch = bord + pcar + yxhi */
		lcar  = 5.0;			/* Leading clear area before first patch */
		plen  = pscale * (6.5);	/* Patch min length */
		if(plen <= 6.75)		/* Patch length must be one of 5 lengths */
			plen = 6.5;
		else if(plen <= 8.0)
			plen = 7.0;
		else if(plen <= 11.25)
			plen = 10.0;
		else if(plen <= 12.75)
			plen = 12.5;
		else 
			plen = 13.0;
		tidplen = 6.0;			/* TID Patch length. Can't vary. */
		tspa  = 5.0;			/* Clear space after last patch */
		pwid  = 10.0;			/* Patch min width. (The guide slot is 12mm ?) */
		if (plen > pwid)
			pwid = plen;		/* Make patch at least as wide as long */
		rrsp  = pwid;			/* Row center to row center spacing */
		pwex  = 0.0;			/* Patch width expansion between rows of a strip */
		if (nollimit == 0) {
			mxpprow = MAXPPROW;		/* Maximum patches per row permitted (set by length) */
			mxrowl = (240.0 - lcar - tspa);	/* Maximum row length */
		} else {
			mxpprow = MAXPPROW;		/* Maximum patches per row permitted (set by length) */
			mxrowl = MAXROWLEN;				/* No row length */
		}
		tidrows = 1;			/* Rows on first page for target ID */
		tidtype = 0;			/* Target ID type. 0 = DTP20 */
		tidminp = 21;			/* Target ID minumum number of patches (+ white) */
		rpstrip = 999;			/* Rows per strip */
		txhi   = 5.0;			/* Label Text Height */
		txhisl = 2.0;			/* Strip Label Text Height */
		docutmarks = 0;			/* Don't generate strip cut marks */
		clwi  = 0.0;			/* Cut line width */
		dorowlabel = 0;			/* Don't generate row labels */
		rlwi = 0.0;				/* Row label width */
		pglth = 5.0;			/* Page Label text height */

		if (npat > 4095)
			error ("Number of patchs %d exceeds maximum of 4095 for DTP20");

	} else if (itype == instDTP22 ) {	/* X-Rite DTP22 Digital Swatchbook */
		hex = hflag ? 1 : 0;	/* Hex if requestested */
		domaxmin = 0;			/* Don't print max and min patches */
		nextrap = 0;			/* Number of extra patches for max and min */
		nmaxp = nminp = 0;		/* Extra max/min patches */
		nextrap = nmaxp + nminp;/* Number of extra patches for max and min */
		dorspace = 0;			/* Do a rrsp from center of last patch to cut line */
		dopglabel = 1;			/* Write a per page label */
		padlrow = 0;			/* Pad the last row with white */
		spacer = 0;				/* No spacer */
		usede = 1;				/* Use delta E to maximize patch/spacer conrast */
		needpc = 1;				/* Need patch to patch contrast in a row */
		lspa  = bord + 8.0;		/* Leader space before first patch = border + text */
		lcar  = 0.0;			/* Leading clear area before first patch */
		if (hex) {
			plen = pscale * sqrt(0.75) * 8.0;	/* Patch min length */
			hxeh = 1.0/6.0 * plen;				/* Extra border for hex tops & bottoms */
			hxew = pscale * 0.25 * 8.0;			/* Extra border for hex sides */
		} else {
			plen = pscale * 8.0;	/* Patch min length */
			hxew = hxeh = 0.0;		/* No extra padding because no hex */
		}
		pspa  = 0.0;			/* Inbetween Patch spacer */
		tspa  = 0.0;			/* Clear space after last patch */
		pwid  = pscale * 8.0;	/* Patch min width */
		rrsp  = pscale * 8.0;	/* Row center to row center spacing */
		pwex  = 0.0;			/* Patch width expansion between rows of a strip */
		mxpprow = MAXPPROW;		/* Maximum patches per row permitted */
		mxrowl = MAXROWLEN;		/* Maximum row length */
		tidrows = 0;			/* No rows on first page for target ID */
		rpstrip = 999;			/* Rows per strip */
		txhi = txhisl = 5.0;	/* Text Height */
		docutmarks = 0;			/* Don't generate strip cut marks */
		clwi  = 0.0;			/* Cut line width */
		dorowlabel = 1;			/* Generate row labels */
		rlwi = 8.0;				/* Row label width */
		pglth = 5.0;			/* Page Label text height */

	} else if (itype == instDTP41) {	/* Xrite DTP41 */
		hex = 0;				/* No hex for strip instruments */
		hxew = hxeh = 0.0;		/* No extra padding because no hex */
		domaxmin = 0;			/* Don't print max and min patches */
		nmaxp = nminp = 0;		/* Extra max/min patches */
		nextrap = nmaxp + nminp;/* Number of extra patches for max and min */
		dorspace = 0;			/* Maximise number of rows */
		dopglabel = 1;			/* Write a per page label */
		padlrow = 1;			/* Pad the last row with white */
		if (spacer < 0)
			spacer = 2;			/* Colored Spacer */
		needpc = 1;				/* Need patch to patch contrast in a row */
		lspa  = inch2mm(1.5);	/* Leader space before first patch */
		lcar  = inch2mm(0.5);	/* Leading clear area before first patch */
		plen  = pscale * inch2mm(0.29);	/* Patch min length (should be 7.0 mm min.) */
		if (spacer > 0)
			pspa  = pscale * sscale * inch2mm(0.08);	/* Inbetween Patch spacer (should be 2.0 mm min.)*/
		else
			pspa  = 0.0;		/* No spacer */
		tspa  = 2 * (plen + pspa);	/* Clear space after last patch */
		pwid  = inch2mm(0.5);	/* Patch min width */
		rrsp  = inch2mm(0.5);	/* Row center to row center spacing */
		pwex  = (rrsp - pwid)/2.0;	/* Patch width expansion between rows of a strip */
		if (nollimit == 0) {
			mxpprow = 100;			/* Maximum patches per row permitted */
			mxrowl = inch2mm(55.0);	/* Maximum row length */
		} else {
			mxpprow = MAXPPROW;		/* Maximum patches per row permitted */
			mxrowl = MAXROWLEN;		/* Maximum row length */
		}
		tidrows = 0;			/* No rows on first page for target ID */
		rpstrip = 8;			/* Rows per strip */
		txhi = txhisl = 5.0;	/* Text Height */
		docutmarks = 1;			/* Generate strip cut marks */
		clwi  = 0.3;			/* Cut line width */
		dorowlabel = 0;			/* Don't generate row labels */
		rlwi = 0.0;				/* Row label width */
		pglth = 5.0;			/* Page Label text height */

	} else if (itype == instDTP51) { 	/* Xrite DTP51 */
		hex = 0;				/* No hex for strip instruments */
		hxew = hxeh = 0.0;		/* No extra padding because no hex */
		domaxmin = 1;			/* Print max and min patches */
		nmaxp = nminp = 1;		/* Extra max/min patches */
		nextrap = nmaxp + nminp;/* Number of extra patches for max and min */
		dorspace = 1;			/* Do a rrsp from center of last patch to cut line */
		dopglabel = 0;			/* No need for a per page label */
		padlrow = 1;			/* Pad the last row with white */
		if (spacer < 0)
			spacer = 2;			/* Colored Spacer */
		needpc = 1;				/* Need patch to patch contrast in a row */
		lspa  = inch2mm(1.2);	/* Leader space before first patch */
		lcar  = inch2mm(0.25);	/* Leading clear area before first patch */
		plen  = pscale * inch2mm(0.4);	/* Patch min length */
		if (spacer > 0)
			pspa  = pscale * sscale * inch2mm(0.07);	/* Inbetween Patch spacer */
		else
			pspa  = 0.0;		/* No spacer */
		tspa  = inch2mm(0.0);	/* Clear space after last patch */
		pwid  = inch2mm(0.4);	/* Patch min width */
		rrsp  = inch2mm(0.5);	/* Row center to row center spacing */
		pwex  = (rrsp - pwid)/2.0;	/* Patch width expansion between rows of a strip */
		if (nollimit == 0) {
			mxpprow = 72;			/* Maximum patches per row permitted */
			mxrowl = inch2mm(40.0);	/* Maximum row length */
		} else {
			mxpprow = MAXPPROW;		/* Maximum patches per row permitted */
			mxrowl = MAXROWLEN;		/* Maximum row length */
		}
		tidrows = 0;			/* No rows on first page for target ID */
		rpstrip = 6;			/* Rows per strip */
		txhi = txhisl = 5.0;	/* Text Height */
		docutmarks = 1;			/* Generate strip cut marks */
		clwi  = 0.3;			/* Cut line width */
		dorowlabel = 0;			/* Don't generate row labels */
		rlwi = 0.0;				/* Row label width */
		pglth = 5.0;			/* Page Label text height */

	} else if (itype == instSpectroScan ) {	/* GretagMacbeth SpectroScan */
		hex = hflag ? 1 : 0;	/* Hex if requestested */
		domaxmin = 0;			/* Don't print max and min patches */
		nextrap = 0;			/* Number of extra patches for max and min */
		nmaxp = nminp = 0;		/* Extra max/min patches */
		nextrap = nmaxp + nminp;/* Number of extra patches for max and min */
		dorspace = 0;			/* Maximise number of rows */
		dopglabel = 1;			/* Write a per page label */
		padlrow = 0;			/* Pad the last row with white */
		spacer = 0;				/* No spacer */
		needpc = 0;				/* Don't need patch to patch contrast in a row */
		lspa  = bord + 7.0;		/* Leader space before first patch = border + text */
		lcar  = 0.0;			/* Leading clear area before first patch */
		if (hex) {
			plen = pscale * sqrt(0.75) * 7.0;	/* Patch min length */
			hxeh = 1.0/6.0 * plen;				/* Extra border for hex tops & bottoms */
			hxew = pscale * 0.25 * 7.0;			/* Extra border for hex sides */
		} else {
			plen = pscale * 7.0;	/* Patch min length */
			hxew = hxeh = 0.0;		/* No extra padding because no hex */
		}
		pspa  = 0.0;			/* Inbetween Patch spacer */
		tspa  = 0.0;			/* Clear space after last patch */
		pwid  = pscale * 7.0;	/* Patch min width */
		rrsp  = pscale * 7.0;	/* Row center to row center spacing */
		pwex  = 0.0;			/* Patch width expansion between rows of a strip */
		mxpprow = MAXPPROW;		/* Maximum patches per row permitted */
		mxrowl = MAXROWLEN;		/* Maximum row length */
		tidrows = 0;			/* No rows on first page for target ID */
		rpstrip = 999;			/* Rows per strip */
		txhi = txhisl = 5.0;	/* Row/Column Text Height */
		docutmarks = 0;			/* Don't generate strip cut marks */
		clwi  = 0.0;			/* Cut line width */
		dorowlabel = 1;			/* Generate row labels */
		rlwi = 7.5;				/* Row label width */
		pglth = 5.0;			/* Page Label text height */

	} else if (itype == instI1Pro ) {	/* GretagMacbeth Eye-One Pro */
		if (nolpcbord == 0 && bord < 26.0)
			lbord = 26.0 - bord;	/* need this for holder to grip paper and plastic spacer */
		hex = 0;				/* No hex for strip instruments */
		hxew = hxeh = 0.0;		/* No extra padding because no hex */
		domaxmin = 0;			/* Don't print max and min patches */
		nextrap = 0;			/* Number of extra patches for max and min */
		nmaxp = nminp = 0;		/* Extra max/min patches */
		nextrap = nmaxp + nminp;/* Number of extra patches for max and min */
		dorspace = 0;			/* Maximise number of rows by having no space between them */
		dopglabel = 1;			/* Write a per page label */
		padlrow = 1;			/* Don't need to pad the last row for the i1, */
								/* but the strip read logic can't handle it. */
		if (spacer < 0)
			spacer = 2;			/* Colored Spacer */
		needpc = 1;				/* Need patch to patch contrast in a row */
		usede = 1;				/* Use delta E to maximize patch/spacer conrast */
		lspa  = bord + 7.0 + 10.0;	/* Leader space before first patch = bord + txhisl + lcar */
		lcar  = 10.0;			/* Leading clear area before first patch */
		plen  = pscale * 10.00;	/* Patch min length - total 11 mm */
		if (spacer > 0)
			pspa  = pscale * sscale * 1.00;	/* Inbetween Patch spacer 1mm */
		else
			pspa  = 0.0;		/* No spacer */
		tspa  = 10.0; 			/* Clear space after last patch - run off */
		pwid  = pscale * 8.0;	/* Patch min width */
		rrsp  = pscale * 8.0;	/* Row center to row center spacing */
		pwex  = 0.0;			/* Patch width expansion between rows of a strip */
		if (nollimit == 0) {
			mxpprow = MAXPPROW;		/* Maximum patches per row permitted (set by length) */
			mxrowl = (260.0 - lcar - tspa);	/* Maximum holder row length */
		} else {
			mxpprow = MAXPPROW;		/* Maximum */
			mxrowl = MAXROWLEN;		/* Maximum */
		}
		tidrows = 0;			/* No rows on first page for target ID */
		rpstrip = 999;			/* Rows per strip */
		txhi = txhisl = 7.0;	/* Text Height */
		docutmarks = 0;			/* Don't generate strip cut marks */
		clwi  = 0.0;			/* Cut line width */
		dorowlabel = 0;			/* Don't generate row labels */
		rlwi = 0.0;				/* Row label width */
		pglth = 5.0;			/* Page Label text height */

	} else if (itype == instColorMunki ) {	/* X-Rite ColorMunki */
		hex = 0;				/* No hex for strip instruments */
		hxew = hxeh = 0.0;		/* No extra padding because no hex */
		domaxmin = 0;			/* Don't print max and min patches */
		nextrap = 0;			/* Number of extra patches for max and min */
		nmaxp = nminp = 0;		/* Extra max/min patches */
		nextrap = nmaxp + nminp;/* Number of extra patches for max and min */
		dorspace = 0;			/* Put spaces between rows for guidance */
		dopglabel = 1;			/* Write a per page label */
		padlrow = 1;			/* Don't need to pad the last row for the Munki, */
								/* but the strip read logic can't handle it. */
		if (spacer < 0)
			spacer = 2;			/* Colored Spacer */
		needpc = 1;				/* Need patch to patch contrast in a row */
		usede = 1;				/* Use delta E to maximize patch/spacer conrast */
		lspa  = bord + 7.0 + 20.0;	/* Leader space before first patch = bord + txhisl + lcar */
		lcar  = 20.0;			/* Leading clear area before first patch */
		plen  = pscale * 14.00;	/* Patch min length - total 15 mm */
		if (spacer > 0)
			pspa  = pscale * sscale * 1.0;	/* Inbetween Patch spacer 1mm */
		else
			pspa  = 0.0;		/* No spacer */
		tspa  = 25.0; 			/* Clear space after last patch - run off */
		if (hflag) {			/* High density */
			pwid  = pscale * 13.7;	/* Patch min width */
			rrsp  = pscale * 13.7;	/* Row center to row center spacing */
			hxeh = 0.25 * plen;		/* Extra space for row stagger */
			stagger = 0.5 * (plen + 0.5 * pspa);	/* Do stagger */
		} else {
			pwid  = pscale * 28.0;	/* Patch min width */
			rrsp  = pscale * 28.0;	/* Row center to row center spacing */
		}
		pwex  = 0.0;			/* Patch width expansion between rows of a strip */
		mxpprow = MAXPPROW;		/* Maximum patches per row permitted (set by length) */
		mxrowl = MAXROWLEN;		/* Maximum row length */
		tidrows = 0;			/* No rows on first page for target ID */
		rpstrip = 999;			/* Rows per strip */
		txhi = txhisl = 7.0;	/* Text Height */
		docutmarks = 0;			/* Don't generate strip cut marks */
		clwi  = 0.0;			/* Cut line width */
		dorowlabel = 0;			/* Don't generate row labels */
		rlwi = 0.0;				/* Row label width */
		pglth = 5.0;			/* Page Label text height */


	} else {
		error("Unsupported intrument type");
	}
	
	/* Compute page limits */
	x1 = bord + lbord;	/* Bounding box in mm */
	y1 = bord;
	x2 = pw - bord;
	y2 = ph - bord;
	iw = x2 - x1;		/* Imagable areas width and height in mm */
	ih = y2 - y1;

	*p_patchlen = plen;		/* Return patch lenth in mm */
	*p_gaplen = pspa;		/* Return gap lenth in mm */
	*p_taplen = tspa;		/* Return trailer lenth in mm */

	if (scanc & 2) 			/* Scan compatiblity */
		sxwi = pwid/2.0;	/* First row patches extra width */

	/* Compute limits for this page size */
	/* Figure the available space for patches */
	mints = bord + txhisl + lcar;		/* Minimum top space due to border, text and clear area */
	if (mints < lspa)
		mints = lspa;				/* Minimum top space due to leader */
	minbs = bord;					/* Minimum botom space due to border */
	if (minbs < tspa)
		minbs = tspa;				/* Minimum botom space due to trailer */
	arowl = ph - mints - minbs - 2.0 * hxeh;	/* Available space for printing test patches */
	if (arowl > mxrowl)
		arowl = mxrowl;				/* Limit maximum row length */

	/* We are assuming that every patch may be surounded by a spacer */
	/* (ie. there are always pprow+1 gaps spacers are used) */
	pprow = (int)((arowl - pspa)/(plen + pspa));	/* Raw Patches per row */
	if (pprow > mxpprow)			/* Limit to maximum */
		pprow = mxpprow;
	
	tidpprow = 0;
	if (tidminp > 0 && tidplen > 0.0) {
		tidpprow = (int)((arowl - pspa)/(tidplen + pspa));	/* Raw TID Patches per row */
		if (tidpprow < tidminp)			/* TID doesn't use nextrap */
			error("Paper size not long enough for target identification row (need %.1f mm, got %.1f mm)!",tidminp * (tidplen + pspa) - pspa, arowl);
	}

	tidpad = (pprow - tidminp)/2;	/* Center TID */

	if (pprow < (1+nextrap))
		error("Paper size not long enought for a single patch per row!");

	*ptpprow = tpprow = pprow - nextrap;	/* Test sample patches per row */

	tidnpat = npat + (tidrows * tpprow);	/* Total patches including TID row, but not max/min/sid */

	/* (Sample patches per row including TID) */
	if ((*pprps = (unsigned char *)malloc(sizeof(unsigned char) * (2 + (tidnpat/tpprow)))) == NULL)
		error("Malloc failed!");
	rpsp = *pprps;
	
	/* Compute actual lowest coordinate used */
	aminbs = ph - mints - pspa - pprow * (plen + pspa);
	amints = mints + 0.5 * (aminbs - minbs); 	/* Distribute extra space */
	aminbs = minbs + 0.5 * (aminbs - minbs);

	/* Compute whole strip width */
	if (dorspace)
		swid = rpstrip * rrsp + pwid/2.0;			/* set gutter is rrsp - pwid/2 wide */
	else
		swid = (rpstrip-1) * rrsp + pwid + clwi;	/* set gutter is 0, but allow for cut line */
		
	/* Compute strips per page.  Number of whole strips + partial strips */
	sppage = (int)((iw - rlwi - sxwi - 2.0 * hxew - (dopglabel ? pglth : 0.0))/swid) + 1;

	/* Compute rows per partial strip on whole page */
	if (dorspace)
		rppstrip = (int)((iw - rlwi - sxwi - 2.0 * hxew - (dopglabel ? pglth : 0.0) - swid * (sppage-1) - pwid/2.0)/rrsp);
	else
		rppstrip = (int)((iw - rlwi - sxwi - 2.0 * hxew - (dopglabel ? pglth : 0.0) - swid * (sppage-1) - pwid + rrsp)/rrsp);
	if (rppstrip < 0)
		rppstrip = 0;
	if (rppstrip == 0) {	/* Make last partial strip a full strip */
		sppage--;
		rppstrip = rpstrip;
	}
	
	if (sppage <= 0)
		error("Not enough width for even one row!");

	/* The number of pages needed */
	pppage = tpprow * ((sppage-1) * rpstrip + rppstrip);/* Real patches per page */
	npages = (tidnpat + pppage -1)/pppage;				/* whole & partial pages */
	ppstrip = tpprow * rpstrip;							/* Real patches per full strip */

	rem = tidnpat;						/* Total test patches to print */
	rem -= (npages-1) * pppage;			/* Remaining patches to be printed on last page */

	lsppage = (rem + ppstrip -1)/ppstrip;	/* Last pages whole & partial strips per page */
	rem -= (lsppage - 1) * ppstrip;			/* remaining patches to be printed in last strip */

	lrpstrip = (rem + tpprow - 1)/tpprow;
										/* Last strips whole & partial rows per strip */

	rem -= (lrpstrip - 1) * tpprow;		/* remaining patches to be printed in last row */

	lpprow = rem + nextrap;				/* Patches in last row of last strip of last page */

	if (verb) {
		fprintf(stderr,"Patches = %d\n",npat);
		fprintf(stderr,"Test patches per row = %d\n",tpprow);
		if (sppage == 1)
			fprintf(stderr,"Rows per page = %d, patches per page = %d\n",rppstrip, pppage);
		else
			fprintf(stderr,"Strips per page = %d, rows per partial strip = %d, patches per page = %d\n",sppage, rppstrip, pppage);
		if (tidrows > 0)
			fprintf(stderr,"Target ID rows in first page = %d\n", tidrows);
		fprintf(stderr,"Rows in last strip = %d, patches in last row = %d\n", lrpstrip, lpprow-nextrap);
		fprintf(stderr,"Total pages needed = %d\n",npages);
	}

	if (padlrow) {		/* Add in extra padding patches */
		int i;
		for (i = 0; lpprow < pprow; lpprow++, npat++, tidnpat++, i = (i + 1) & 7) {
#ifdef NEVER
			if (needpc && rand)
				cols[npat] = pcol[i];		/* structure copy */
			else
				cols[npat] = *media;		/* structure copy */
#else
			cols[npat] = *media;		/* structure copy */
#endif
			cols[npat].i = npat;			/* Now has an index */
			cols[npat].t &= ~T_PRESET;
			cols[npat].t |= T_PAD; 
			cols[npat].id = "0";			/* Padding identification */
		}
	}
	*p_npat = npat;			/* Return number of patches including padding */
//printf("~1 padded no of patches = %d\n", npat);

	/* Setup logical to random patch mapping */
	if ((rix = (int *)malloc(sizeof(int) * (npat + 1))) == NULL)
		error("Malloc failed!");

	setup_randix(rix, npat, rand, rstart, verb, cols, pcol,
	             tpprow, spacer, needpc, domaxmin, media, usede);
	rix[npat] = -1;		/* Shouldn't use this */

	/* Init everything */
	l_si = i = 0;	/* Physical test patch index. */
	ix = rix[i];	/* First index */

	pir = 1;		/* Starting patch in row (includes max/min patches) */
	ris = 1;		/* Starting row in strip. */
	sip = 1;		/* Starting strip in page */
	pif = 1;		/* Starting page in file */

						/* slix is 0..n but is pre-incremented, so start at -1 */
	slix = -1 -tidrows;	/* Start at -2 if there is a TID  */

	/* Until there are no more patches to do */
	for (;;) {
		char *sp = NULL;	/* String pointer - label */
		double w;			/* Width of next patch */
		int flags;			/* flags for current patch */
#define IS_FPIR   0x00001	/* Is first patch in row (possibly max density patch) */
#define IS_XPAT   0x00002	/* Is max density/SID patch */
#define IS_NPAT   0x00004	/* Is min density/SID patch */
#define IS_LPIR   0x00008	/* Is last patch in row (possibly min density patch) */
#define IS_FRIS   0x00010	/* Is first row in strip */
#define IS_LRIS   0x00020	/* Is last row in strip */
#define IS_FSIP   0x00040	/* Is first strip in page */
#define IS_LSIP   0x00080	/* Is last strip in page */
#define IS_FPIF   0x00100	/* Is first page in file */
#define IS_LPIF   0x00200	/* Is last page in file */
#define IS_PAD    0x04000	/* Is fake padding patch, to round out very last row */

		/* Init flags for this patch */
		flags = 0;
		if (pir == 1)
			flags |= IS_FPIR;
		if (pir <= nmaxp)
			flags |= IS_XPAT;

		if (slix < -1) {		/* If TID row */

			if (pir == tidpprow)
				flags |= IS_LPIR;

		} else {

			if (pir > (pprow - nminp))
				flags |= IS_NPAT;
	
			if (pir == pprow)
				flags |= IS_LPIR;
		}

		if (ris == 1)
			flags |= IS_FRIS;
		if (ris == rpstrip)
			flags |= IS_LRIS;

		if (sip == 1)
			flags |= IS_FSIP;
		if (sip == sppage) {
			flags |= IS_LSIP;
			if (ris == rppstrip)
				flags |= IS_LRIS;
		}
		if (pif == 1)
			flags |= IS_FPIF;
		if (pif == npages) {
			flags |= IS_LPIF;
			if (sip == lsppage) {
				flags |= IS_LSIP;
				if (ris == lrpstrip) {
					flags |= IS_LRIS;

					if (padlrow) {				/* Last row in chart may be a runt */
						if (pir > lpprow)
							flags |= IS_PAD;
					} else {
						if (pir > (lpprow - nminp))
							flags |= IS_NPAT;
						if (pir == lpprow)
							flags |= IS_LPIR;
					}
				}
			}
		}

//printf("~1 pir %d, ris %d, sip %d, pif %d\n", pir, ris, sip, pif);

		/* Set initial patch width */
		w = pwid;
		if (!(flags & IS_FRIS))
			w += pwex;		/* Extend patch into previous row to row gap */
		if (!(flags & IS_LRIS))
			w += pwex;		/* Extend patch into next row to row gap */

		if ((flags & IS_FRIS) && (flags & IS_FSIP))	/* First row on page */
			w += sxwi;		/* Make first row fatter for scan compatiblity */

		if (flags & IS_FPIR) {			/* Start of row */
			y = ph - amints;			/* Start ready for spacer or patch */ 

			if (flags & IS_FRIS) {							/* Start of strip */
				if (flags & IS_FSIP) {						/* Start of page */
					x = x1;									/* Start at leftmost position */
					if (oft == 0) {	/* PS */
						if (flags & IS_FPIF) {					/* First page */
							sprintf(psname,"%s.ps",bname);
							if ((tro = new_ps_trend(psname,npages,nmask,pw,ph,oft,nocups,rand,rstart)) == NULL)
								error ("Unable to create output rendering object file '%s'",psname);
							if (verb)
								printf("Creating file '%s'\n",psname);
						}
					} else if (oft == 1) {	/* EPS */
						if (npages > 1)
							sprintf(psname,"%s_%02d.eps",bname,pif);
						else
							sprintf(psname,"%s.eps",bname);
						if ((tro = new_ps_trend(psname,npages,nmask,pw,ph,oft,rand,rstart,nocups)) == NULL)
							error ("Unable to create output rendering object file '%s'",psname);
						if (verb)
							printf("Creating file '%s'\n",psname);
					} else {	/* TIFF */
						double res;		/* pix/mm */
						if (npages > 1)
							sprintf(psname,"%s_%02d.tif",bname,pif);
						else
							sprintf(psname,"%s.tif",bname);

						res = tiffres/25.4; 
						if ((tro = new_tiff_trend(psname,nmask,tiffdpth,pw,ph,
						    nosubmarg ? 0 : bord, res,res,altrep,ncha,tiffcomp, tiffdith)) == NULL)
							error ("Unable to create output rendering object file '%s'",psname);
						if (verb)
							printf("Creating file '%s'\n",psname);
					}
					tro->startpage(tro,pif);

					/* Print all the row labels */
					if (dorowlabel) {
						double ty = y;		/* Temp y coord */
						int tpir;			/* Temp patch in row */

						for (tpir = 0; tpir < pprow; tpir++) {
							/* If we're within test sample patch range */
							if (tpir >= nmaxp && tpir < (pprow - nminp)) {
								char *rlabl;
								if ((rlabl = paix->aix(paix, tpir - nmaxp)) == NULL)
									error ("Patch in row label %d out of range",tpir);
								tro->setcolor(tro, cal, mark);
								tro->string(tro, x, ty-plen, rlwi, plen, rlabl);
								free(rlabl);
							}
						
							ty -= plen + pspa;
						}

						x += rlwi;
					}

					x += hxew; /* Extra space on left for bits of hex */

					/* Clear edge list tracking */
					et_clear();
				}
			}

			/* Increment strip label 0..n */
			slix++;

			/* Print strip label */
			if ((lspa - lcar - bord) >= txhisl) {	/* There is room for label */
				if (slix < 0) {	/* TID */
					tro->setcolor(tro, cal, mark);
					tro->string(tro,x,y2-txhisl,w,txhisl,"TID");
				} else {		/* Not TID */
					if (slab != NULL)
						free(slab);
					if ((slab = saix->aix(saix, slix)) == NULL)
						error("strip index %d out of range",slix);
		
					tro->setcolor(tro, cal, mark);
					tro->string(tro,x,y2-txhisl,w,txhisl,slab);
				}
			}

			/* Start with background = media */
			pp = media;

			/* Stagger rows */
			if (stagger > 0.0) {
				if (slix & 1)
					y -= stagger;
			}
		}

		/* Figure the current patch color */
		cpf = 0;
		if (slix < 0) {		/* TID */
			cp = mind;		/* Default padding color is white */
			if (pir > tidpad && pir <= (tidpad + tidminp) ) {
				int opir = pir - tidpad -1;	/* TID index 0 .. tidminp-1 */
				
				if (opir == 0) {
					cp = &pcol[1];	/* Cyan */

				} else if (opir >= 1 && opir <= 2) {	/* Patches in each strip */
					col *ppcol[2];
					if (dtp20_enc(pcol, 2, 0, ppcol, tpprow) != 0)
						error("Internal, dtp20 TID ppstrip failed, val %d, digits %d",tpprow,2);
					cp = ppcol[opir-1];

				} else if (opir >= 3 && opir <= 6) {	/* Total patches, including padding */
					col *ppcol[4];
					if (dtp20_enc(pcol, 4, 0, ppcol, npat) != 0)
						error("Internal, dtp20 tot patches failed, val %d, digits %d",npat,4);
					cp = ppcol[opir-3];

				} else if (opir == 7) {	/* Patch size */
					int j;
					for (j = 0; j < 8; j++) {
						if (fabs(pcol[j].dtp20_psize - plen) < 0.001)
							break;
					}
					if (j >= 8)
						error("Can't encode patch length for DTP20");
					cp = &pcol[j];

				} else if (opir == 8) {	/* Patch spacer width */
					int j, k;
					k = (int)(pspa / 0.5 + 0.5);
					for (j = 0; j < 8; j++) {
						if (pcol[j].dtp20_octval == k)
							break;
					}
					if (j >= 8)
						error("Can't encode spacer length for DTP20");
					cp = &pcol[j];

				} else if (opir >= 9 && opir <= 18) {	/* User defined */

					if (opir == 9) {			/* Indicate what user defined is used for */
						cp = &pcol[0];			/* 0 = random seed format */
					} else if (opir >= 10 && opir <= 13) {	/* Random seend value */
						col *ppcol[4];
						if (dtp20_enc(pcol, 4, 0, ppcol, rstart) != 0)
							error("Internal, dtp20 chart id failed, val %d, digits %d",rstart,4);
						cp = ppcol[opir-10];

					} else {	/* 14 .. 18 */
						cp = &pcol[0];		/* Currently unused */
					}

				} else if (opir == 19) {
					cp = &pcol[4];	/* Yellow */
				} else if (opir == 20) {
					cp = &pcol[2];	/* Magenta */
				}
			}
		} else {
			if (flags & IS_XPAT) {						/* Max or SID at start of row */
				sp = NULL;								/* Not a test patch (no label) */
				if (domaxmin == 1) {
					cp = maxd;							/* Maximum density patch at start */
				} else if (domaxmin == 2) {
					if (pir == 1) {						/* At very start */
						cpf = 1;						/* Create start bit */
						cp = &pcol[8];					/* Starts with 50/50/50 DTP20 Grey */
					} else {
						col *ppcol[3];
						/* Compute the patch colors the DTP20 will use before row */
						if (dtp20_enc(pcol, 3, 1, ppcol, slix+1) != 0)
							error("Internal, dtp20 SID row id failed, val %d, digits %d",slix+1,3);
						cp = ppcol[pir-2];	
					}
				}

			} else if (flags & IS_NPAT) { 				/* Min at end of rows or stop bit */
				sp = NULL;								/* Not a test patch (no label) */
				if (domaxmin == 1) {
					cp = mind;
				} else if (domaxmin == 2) {				/* DTP20 end patch */
					cpf = 2;							/* Create stop bit */
					cp = mind;							/* Starts with mind */
				}

			} else if (flags & IS_PAD) {				/* Fake blank patch */
				sp = NULL;								/* Not a test patch (no label) */
				cp = media;

			} else {	/* set test sample patch location and color */
				int apir = pir - nmaxp;			/* Adjusted pir for max/min patches */
				if (sp != NULL)
					free(sp);
				if ((sp = patch_location(saix, paix, ixord, slix, apir-1)) == NULL)
					error ("Patch location out of range, strip %d patch %d",slix,apir-1);
				if (ix < 0) {
					error("Internal, got -ve patch index for generating patch %d",i);
				}
				strcpy(cols[ix].loc, sp);		/* Record location */
				cp = &cols[ix];					/* Get color for this patch */

				i++;							/* Consumed a test patch */
				if (i > npat)
					error("Internal - ran out of test patches !");
					 
				ix = rix[i];		/* Next patch index */
			}
		}

		/* Print a spacer in front of patch if requested */
		if (spacer > 0) {
			setup_spacer(&sc, pp, cp, pcol, spacer, usede);
			tro->setcolor(tro, cal, sc);
			tro->rectangle(tro, x, y, w, pspa, NULL,1);
			y -= pspa;
		}

		/* Print patch */
		{
			double wplen = plen;

			if (slix < 0) {
				wplen = tidplen;	/* TID can have a different length patch */
			}

			tro->setcolor(tro, cal, cp);	/* Patch color set above */
			if (hex) {
				int apir = pir - nmaxp;		/* Adjusted pir for max/min patches */
				tro->hexagon(tro, x, y, w, wplen, apir-1, sp);
			} else {
				/* We hack in the twin patches for the DTP20 start and stop */
				/* Initial color is set above (as for regular patches) */
				if (cpf == 1) {				/* DTP20 start bit */
					tro->rectangle(tro, x, y, w, 1.0, sp,1);	/* 50/50/50 set above */
					tro->setcolor(tro, cal, mind);		/* White */
					tro->rectangle(tro, x, y - 1.0, w, wplen - 1.0, sp,1);
				} else if (cpf == 2) {		/* DTP20 stop bit */
					tro->rectangle(tro, x, y, w, wplen - 3.0, sp,1);	/* mind set above */
					tro->setcolor(tro, cal, &pcol[8]);		/* 50/50/50 Grey for DTP20 */
					tro->rectangle(tro, x, y - wplen + 3.0, w, 3.0, sp,1);
				} else {					/* Normal patch */
					tro->rectangle(tro, x, y, w, wplen, sp,1);
				}
			}
			y -= wplen;
		}
		if (sp != NULL) {		/* Done with sp for the moment */
			free(sp);
			sp = NULL;
		}

		/* Advance the patch count */
		pir++;
		pp = cp;	/* Current color becomes last color */

		/* If this is the last patch in the row, */
		/* print a possible last spacer. */
		if (flags & IS_LPIR) {								/* End of row */
			cp = media;
			if (spacer > 0) {
				setup_spacer(&sc, pp, cp, pcol, spacer, usede);
				tro->setcolor(tro, cal, sc);
				tro->rectangle(tro, x, y, w, pspa, NULL,1);
				y -= pspa;
			}
		}

		if (flags & IS_LPIR) {								/* Last patch in row */
			pir = 1;
			ris++;

			/* First step to the middle of the patch */
			if (flags & IS_FRIS)
				x += pwid/2.0;
			else
				x += pwid/2.0 + pwex;

			/* Then step to the start of the next patch */
			if (flags & IS_LRIS) {
				if (dorspace)
					x += rrsp;				/* row to row space, making gutter */
				else
					x += pwid/2.0 + clwi;	/* no gutter, but room for cut line */
			} else
				x += pwid/2.0 + pwex;

			if ((flags & IS_FRIS) && (flags & IS_FSIP))	/* First row on page */
				x += sxwi;					/* Allow for scan compatible fatter first row */

			if (flags & IS_LRIS) {							/* End of strip */
				/* Ignore TID rows */
				if ((flags & IS_FPIF) && (flags & IS_FSIP))
					*rpsp++ = ris-tidrows-1;	/* Record how many rows in this strip */
				else
					*rpsp++ = ris-1;	/* Record how many rows in this strip */
				ris = 1;
				sip++;
				
				/* Print end of strip crop line */
				tro->setcolor(tro, cal, mark);
				if (docutmarks)			/* Generate strip cut marks */
					tro->dline(tro,x-0.3/2.0,y1,x-0.3/2.0,y2,0.3); /* 0.3 wide dotted line */

				/* Print end of strip identification if we've allowed space */
				if (dorspace)
					tro->vstring(tro,x,y1,rrsp-pwid/2.0-pwex,y2-y1,label);

				if (flags & IS_LSIP) {						/* End of page */
					sip = 1;

					x += hxew;		/* Allow space for extra bits of hexagons */

					/* Print per page label if we've allowed for it */
					if (dopglabel) {
						//tro->vstring(tro,x2,y1,pglth,y2-y1,label); /* At end of page */
						tro->vstring(tro,x+pglth,y1,pglth,y2-y1,label);	/* After last strip */
					}

					/* If we expect to scan this chart in, add some fiducial marks at the corners */
					if (scanc & 1) {
						double lw = 0.5;			/* Line width */
						double ll = 5.0;			/* Line length */

//						fprintf(of,"%% Fiducial marks\n");

						tro->setcolor(tro, cal, mark);
				
						tro->rectangle(tro, x1, y2, ll, lw, NULL, 0);			/* Top left */
						tro->rectangle(tro, x1, y2, lw, ll, NULL, 0);
						if (oft != 2)
							et_fiducial(mm2pnt(x1 + 0.5 * lw), mm2pnt(y2 - 0.5 * lw));
						else
							et_fiducial(x1 + 0.5 * lw, y2 - 0.5 * lw);
				
						tro->rectangle(tro, x2 - ll, y2, ll, lw, NULL, 0);		/* Top right */
						tro->rectangle(tro, x2 - lw, y2, lw, ll, NULL, 0);
						if (oft != 2)
							et_fiducial(mm2pnt(x2 - 0.5 * lw), mm2pnt(y2 - 0.5 * lw));
						else
							et_fiducial(x2 - 0.5 * lw, y2 - 0.5 * lw);
				
						tro->rectangle(tro, x2 - ll, y1 + lw, ll, lw, NULL, 0);	/* Bottom right */
						tro->rectangle(tro, x2 - lw, y1 + ll, lw, ll, NULL, 0);
						if (oft != 2)
							et_fiducial(mm2pnt(x2 - 0.5 * lw), mm2pnt(y1 + 0.5 * lw));
						else
							et_fiducial(x2 - 0.5 * lw, y1 + 0.5 * lw);
				
						tro->rectangle(tro, x1, y1 + lw, ll, lw, NULL, 0);		/* Bottom left */
						tro->rectangle(tro, x1, y1 + ll, lw, ll, NULL, 0);
						if (oft != 2)
							et_fiducial(mm2pnt(x1 + 0.5 * lw), mm2pnt(y1 + 0.5 * lw));
						else
							et_fiducial(x1 + 0.5 * lw, y1 + 0.5 * lw);
					}

					tro->endpage(tro);
					if (oft != 0) {		/* EPS or TIFF */
						tro->del(tro);
					}
					if (flags & IS_LPIF) {					/* Last page in file */
						if (oft == 0) {	/* PS */
							tro->del(tro);
						}
					}

					/* If we are anticipating that scanin may be used with the */
					/* chart, create the scanin recognition file for this page. */
					if (scanc & 1) {
						char chtname[MAXNAMEL+20];	/* Name of .cht file */

						if (npages > 1)
							sprintf(chtname,"%s_%02d.cht",bname,pif);
						else
							sprintf(chtname,"%s.cht",bname);
						et_write(chtname, cols, rix, l_si, i);
					}

					l_si = i;		/* New last start i */

					if (flags & IS_LPIF) {					/* Last page in file */
						break;								/* Done */
					}
					pif++;
				}
			}
		}
	}
	if (slab != NULL)
		free(slab);
	free(rix);

	*rpsp++ = 0;	/* End of rows per strip stuff */

	et_clear();		/* Cleanup edge list structures */
}

/* A paper size structure */
typedef struct {
	char *name;			/* User name (lower case) */
	double w,h;			/* Width and height in mm */
	int def;			/* Non-zero if default */
} paper;

static paper psizes[] = {
	{ "A4", 	 210.0,	297.0, 0 },
	{ "A4R", 	 297.0,	210.0, 0 },
	{ "A3", 	 297.0,	420.0, 1 },
	{ "A2", 	 420.0,	594.0, 0 },
	{ "Letter",	 215.9,	279.4, 0 },
	{ "LetterR", 279.4,	215.9, 0 },
	{ "Legal",	 215.9,	355.6, 0 },
	{ "4x6",	 101.6,	152.4, 0 },
	{ "11x17",	 279.4,	431.8, 0 },
	{ NULL, 0.0, 0.0, 0 }
};

#define DEF_MARGINE 6.0

/* Case independent string compare */
int
cistrcmp(char *s1, char *s2) {
	for (;;s1++, s2++) {
		if (tolower(*s1) != tolower(*s2))
			return 1;
		if (*s1 == '\000')
			return 0;
	}
}

#define DEF_SIXPAT	"A-Z, A-Z"				/* Default strip index pattern */		
#define DEF_PIXPAT	"0-9,@-9,@-9;1-999"		/* Default patch index pattern */		

void usage(char *diag, ...) {
	paper *pp;
	fprintf(stderr,"Generate Target PostScrip file, Version %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: printtarg [-v] [-i instr] [-r] [-s] [-p size] basename\n");
	fprintf(stderr," -v              Verbose mode\n");
	fprintf(stderr," -i 20 | 22 | 41 | 51 | SS | i1 | CM Select target instrument (default DTP41)\n");
	fprintf(stderr,"                 20 = DTP20, 22 = DTP22, 41 = DTP41, 51 = DTP51,\n");
	fprintf(stderr,"                 SS = SpectroScan, i1 = i1Pro, CM = ColorMunki\n");
	fprintf(stderr," -h              Use hexagon patches for SS, double density for CM\n");
	fprintf(stderr," -a scale        Scale patch size and spacers by factor (e.g. 0.857 or 1.5 etc.)\n");
	fprintf(stderr," -A scale        Scale spacers by additional factor (e.g. 0.857 or 1.5 etc.)\n");
	fprintf(stderr," -r              Don't randomize patch location\n");
	fprintf(stderr," -s              Create a scan image recognition (.cht) file\n");
	fprintf(stderr," -S              Same as -s, but don't generate wide orientation strip.\n");
	fprintf(stderr," -c              Force colored spacers\n");
	fprintf(stderr," -b              Force B&W spacers\n");
	fprintf(stderr," -n              Force no spacers\n");
	fprintf(stderr," -f              Create PostScript DeviceN Color fallback\n");
	fprintf(stderr," -w g|r|s|n      White colorspace encoding DeviceGray (def), DeviceRGB, Separation or DeviceN\n");            
	fprintf(stderr," -k g|c|s|n      Black colorspace encoding DeviceGray (def), DeviceCMYK, Separation or DeviceN\n");            
	fprintf(stderr," -o k|r|n        CMY colorspace encoding DeviceCMYK (def), inverted DeviceRGB or DeviceN\n");            
	fprintf(stderr," -e              Output EPS compatible file\n");
	fprintf(stderr," -t [res]        Output 8 bit TIFF raster file, optional res DPI (default 100)\n");
	fprintf(stderr," -T [res]        Output 16 bit TIFF raster file, optional res DPI (default 100)\n");
	fprintf(stderr," -C              Don't use TIFF compression\n");
	fprintf(stderr," -N              Use TIFF alpha N channels more than 4\n");
	fprintf(stderr," -D              Dither 8 bit TIFF values down from 16 bit\n");
	fprintf(stderr," -Q nbits        Quantize test values to fit in nbits\n");
	fprintf(stderr," -R rsnum        Use given random start number\n");
	fprintf(stderr," -K file.cal     Apply printer calibration to patch values and include in .ti2\n");
	fprintf(stderr," -I file.cal     Include calibration in .ti2 (but don't apply it)\n");
	fprintf(stderr," -x pattern      Use given strip indexing pattern (Default = \"%s\")\n",DEF_SIXPAT);
	fprintf(stderr," -y pattern      Use given patch indexing pattern (Default = \"%s\")\n",DEF_PIXPAT);
	fprintf(stderr," -m margin       Set a page margin in mm (default %3.1f mm)\n",DEF_MARGINE);       
	fprintf(stderr," -M margin       Set a page margin in mm and include it in TIFF\n");       
	fprintf(stderr," -P              Don't limit strip length\n");       
	fprintf(stderr," -L              Suppress any left paper clip border\n");       
	fprintf(stderr," -U              Suppress CUPS cupsJobTicket: cups-disable-cmm in PS & EPS files\n");
	fprintf(stderr," -p size         Select page size from:\n");
	for (pp = psizes; pp->name != NULL; pp++)
		fprintf(stderr,"                 %-8s [%.1f x %.1f mm]%s\n", pp->name, pp->w, pp->h,
		pp->def ? " (default)" : "");
	fprintf(stderr," -p WWWxHHH      Custom size, WWW mm wide by HHH mm high\n");
	fprintf(stderr," basname         Base name for input(.ti1), output(.ti2) and output(.ps/.eps/.tif)\n");
	exit(1);
	}

int
main(argc,argv)
int argc;
char *argv[];
{
	int fa, nfa, mfa;		/* argument we're looking at */
	int verb = 0;
	int hflag = 0;			/* Hexagon patches for SS, high density for CM */
	double pscale = 1.0;	/* Patch size scale */
	double sscale = 1.0;	/* Spacer size scale */
	int rand = 1;
	int qbits = 0;			/* Quantization bits */
	int oft = 0;			/* Ouput File type, 0 = PS, 1 = EPS , 2 = TIFF */
	int nocups = 0;			/* Supress CUPS PS/EPS job ticket */
	depth2d tiffdpth = bpc8_2d;	/* TIFF pixel depth */
	double tiffres = 100.0;	/* TIFF resolution in DPI */
	int ncha = 0;			/* flag, use nchannel alpha */
	int tiffdith = 0;		/* flag, use TIFF 8 bit dithering */
	int tiffcomp = 1;		/* flag, use TIFF compression */
	int spacer = -1;		/* -1 = default for instrument */
							/* 0 = forse no spacer, 1 = Force B&W spacers */
							/* 2 = Force colored spacer */
	int rstart = -1;		/* Random sequence start value */
	char *sixpat = DEF_SIXPAT;	/* Strip index pattern */		
	char *pixpat = DEF_PIXPAT;	/* Patch index pattern */		
	alphix *saix, *paix;	/* Strip and Patch index generators */
	int ixord = 0;			/* Index order, 0 = strip then patch */
	int scanc = 0;			/* Scan compatible bits, 1 = .cht, 2 = wide first row */
	int devnfb = 0;			/* Add device N fallback colors */
	int altrep = 0;			/* Device K/W/CMY color type 0..8 */
	int applycal = 0;		/* NZ to apply calibration */
	static char inname[MAXNAMEL+20] = { 0 };	/* Input cgats file name */
	static char calname[MAXNAMEL+1] = { 0 };	/* Input printer calibration */
	static char psname[MAXNAMEL+1] = { 0 };		/* Output postscrip file base name */
	static char outname[MAXNAMEL+20] = { 0 };	/* Output cgats file name */
	cgats *icg;				/* input cgats structure */
	cgats *ocg;				/* output cgats structure */
	xcal *cal = NULL;		/* printer calibration */ 
	instType itype = instDTP41;		/* Default target instrument */
	int nmask = 0;			/* Device colorant mask */
	int nchan = 0;			/* Number of device chanels */
	int i;
	int si, fi, wi;			/* sample id index, field index, keyWord index */
	char label[400];		/* Space for chart label */
	double marg = DEF_MARGINE;	/* Margin from paper edge in mm */
	int nosubmarg = 0;		/* Don't subtract it from raster */
	int nolpcbord = 0;		/* NZ to suppress left paper clip border */
	int nollimit = 0;		/* NZ to release any strip length limits */
	paper *pap = NULL;		/* Paper size pointer, NULL if custom */
	double cwidth, cheight;	/* Custom paper width and height in mm */
	col *cols;				/* test patch colors */
	int npat;				/* Number of patches */
	int nppat;				/* Number of patches including padding */
	col pcold[8];			/* pre-defined density extreme colors */
	int pcolvv = 0;			/* pcolv valid if nz */
	col pcolv[9];			/* pre-defined device combination ecolors */
	col *pcol;				/* Chosen color patches for device */
	double wp[3];			/* Approximate XYZ white point */
	time_t clk = time(0);
	struct tm *tsp = localtime(&clk);
	char *atm = asctime(tsp); /* Ascii time */
	int sip;				/* Steps in Pass */
	unsigned char *pis;		/* Passes in strip array */
	double plen, glen, tlen;/* Patch, gap and trailer length in mm */
	char *bp, buf[500];		/* general sprintf buffer */

	error_program = "printtarg";
	check_if_not_interactive();

#if defined(__IBMC__)
	_control87(EM_UNDERFLOW, EM_UNDERFLOW);
	_control87(EM_OVERFLOW, EM_OVERFLOW);
#endif

	if (argc <= 1)
		usage("Not enough arguments");

#ifdef DEBUG
# pragma message("######### printtarg DEBUG is #define ########")
	fprintf(stderr,"target: DEBUG is #defined\n");
#endif

	/* Find the default paper size */
	for (pap = psizes; pap->name != NULL; pap++) {
		if (pap->def != 0)
			break;
	}
	if (pap->name == NULL)
		error ("Internal - can't find default paper size");

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

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

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

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

			/* hflag patches */
			else if (argv[fa][1] == 'h' || argv[fa][1] == 'H')
				hflag = 1;

			/* Patch scaling */
			else if (argv[fa][1] == 'a') {
				fa = nfa;
				if (na == NULL) usage("Expected scale factor to -a");
				pscale = atof(na);
				if (pscale < 0.1 || pscale > 4.0)
					usage("Scale factor %f is outside expected range 0.1 - 4.0",pscale);
			}

			/* Spacer scaling */
			else if (argv[fa][1] == 'A') {
				fa = nfa;
				if (na == NULL) usage("Expected scale factor to -a");
				sscale = atof(na);
				if (sscale < 0.1 || sscale > 8.0)
					usage("Scale factor %f is outside expected range 0.1 - 8.0",sscale);
			}

			/* Scan compatible */
			else if (argv[fa][1] == 's')
				scanc = 3;

			else if (argv[fa][1] == 'S')
				scanc = 1;

			/* Force colored spacer */
			else if (argv[fa][1] == 'c')
				spacer = 2;

			/* Force B&W spacer */
			else if (argv[fa][1] == 'b' || argv[fa][1] == 'B')
				spacer = 1;

			/* No spacer */
			else if (argv[fa][1] == 'n')
				spacer = 0;

			/* Randomisation off */
			else if (argv[fa][1] == 'r')
				rand = 0;

			/* Specify random seed */
			else if (argv[fa][1] == 'R') {
				fa = nfa;
				if (na == NULL) usage("Expected argument to -R");
				rstart = atoi(na);
				if (rstart < 0)
					usage("Argument to -R must be positive");
			}

			/* Enable DeviceN color fallback */
			else if (argv[fa][1] == 'f' || argv[fa][1] == 'F')
				devnfb = 1;

			/* Select the printer W color representation */
			else if (argv[fa][1] == 'w' || argv[fa][1] == 'W') {
				fa = nfa;
				if (na == NULL) usage("Expected argument to -w");
				switch(na[0]) {
					case 'g':
					case 'G':
						altrep = 0;
						break;
					case 'r':
					case 'R':
						altrep = 4;
						break;
					case 's':
					case 'S':
						altrep = 5;
						break;
					case 'n':
					case 'N':
						altrep = 6;
						break;
					default:
						usage("Unexpected argument to -w");
				}
			}

			/* Select the printer K color representation */
			else if (argv[fa][1] == 'k') {
				fa = nfa;
				if (na == NULL) usage("Expected argument to -k");
				switch(na[0]) {
					case 'g':
					case 'G':
						altrep = 0;
						break;
					case 'c':
					case 'C':
						altrep = 1;
						break;
					case 's':
					case 'S':
						altrep = 2;
						break;
					case 'n':
					case 'N':
						altrep = 3;
						break;
					default:
						usage("Unexpected argument to -k");
				}
			}

			/* Select the printer CMY color representation */
			else if (argv[fa][1] == 'o') {
				fa = nfa;
				if (na == NULL) usage("Expected argument to -o");
				switch(na[0]) {
					case 'k':
					case 'K':
						altrep = 0;
						break;
					case 'r':
					case 'R':
						altrep = 7;
						break;
					case 'n':
					case 'N':
						altrep = 8;
						break;
					default:
						usage("Unexpected argument to -o");
				}
			}

			/* EPS */
			else if (argv[fa][1] == 'e' || argv[fa][1] == 'E')
				oft = 1;

			/* TIFF */
			else if (argv[fa][1] == 't' || argv[fa][1] == 'T') {
				oft = 2;
				if (argv[fa][1] == 'T')
					tiffdpth = bpc16_2d;
				else
					tiffdpth = bpc8_2d;

				if (na != NULL) {	/* Found an optional resolution */
					fa = nfa;
					tiffres = atof(na);
					if (tiffres <= 1.0 || tiffres > 1e6)
						usage("TIFF resolution is out of range");
				}
			}
			/* use Nchannel alpha for TIFF  */
			else if (argv[fa][1] == 'N') {
				ncha = 1;
			}
			/* use 16->8 bit dithering for 8 bit TIFF  */
			else if (argv[fa][1] == 'D') {
				tiffdith = 1;
			}
			/* Don't use TIFF compression */
			else if (argv[fa][1] == 'C') {
				tiffcomp = 0;
			}

			/* Specify quantization bits */
			else if (argv[fa][1] == 'Q') {
				fa = nfa;
				if (na == NULL) usage("Expected argument to -Q");
				qbits = atoi(na);
				if (qbits < 1 || qbits > 32)
					usage("Argument to -Q must be between 1 and 32");
			}

			/* Specify strip index pattern */
			else if (argv[fa][1] == 'x' || argv[fa][1] == 'X') {
				fa = nfa;
				if (na == NULL) usage("Expected argument to -x");
				sixpat = na;
			}

			/* Specify patch index pattern */
			else if (argv[fa][1] == 'y' || argv[fa][1] == 'Y') {
				fa = nfa;
				if (na == NULL) usage("Expected argument to -y");
				pixpat = na;
			}

			/* Border margin */
			else if (argv[fa][1] == 'm' || argv[fa][1] == 'M') {
				if (argv[fa][1] == 'M')
					nosubmarg = 1;
				fa = nfa;
				if (na == NULL) usage("Expected border margine argument to -m");
				marg = atof(na);
				if (marg < 0.0 || marg > 50.0)
					usage("Border margin %f is outside expected range",marg);
			}

			/* Don't limit the strip length */
			else if (argv[fa][1] == 'P') {
				nollimit = 1;
			}

			/* Suppress left paper clip border */
			else if (argv[fa][1] == 'L') {
				nolpcbord = 1;
			}

			/* Suppress CUPS job ticket */
			else if (argv[fa][1] == 'U') {
				nocups = 1;
			}

			/* Page size */
			else if (argv[fa][1] == 'p') {
				fa = nfa;
				if (na == NULL) usage("Expected an argument to -p");
				for (pap = psizes; pap->name != NULL; pap++) {
					if (cistrcmp(na, pap->name) == 0)
						break;
				}
				
				if (pap->name == NULL) {	/* See if it matches a custom size */
					if (sscanf(na,"%lfx%lf",&cwidth, &cheight) == 2) {
						pap = NULL;			/* Indicate custom */
						if (cwidth < 1.0 || cwidth > 4000.0
						 || cheight < 1.0 || cheight > 4000.0)
							usage("Argument to -p was of unexpected size");		/* Sanity check */
					} else {
						usage("Failed to recognise argument to -p");
					}
				}
			}
			/* Target Instrument type */
			else if (argv[fa][1] == 'i') {
				fa = nfa;
				if (na == NULL) usage("Expected an argument to -i");

				if (strcmp("20", na) == 0)
					itype = instDTP20;
				else if (strcmp("22", na) == 0)
					itype = instDTP22;
				else if (strcmp("41", na) == 0)
					itype = instDTP41;
				else if (strcmp("51", na) == 0)
					itype = instDTP51;
				else if (strcmp("SS", na) == 0 || strcmp("ss", na) == 0)
					itype = instSpectroScan;
				else if (strcmp("i1", na) == 0 || strcmp("I1", na) == 0)
					itype = instI1Pro;
				else if (strcmp("cm", na) == 0 || strcmp("CM", na) == 0)
					itype = instColorMunki;
				else
					usage("Argument to -i wasn't recognised");

			/* Printer calibration */
			} else if (argv[fa][1] == 'K' || argv[fa][1] == 'I') {
				if (argv[fa][1] == 'K')
					applycal = 1;
				else
					applycal = 0;
				fa = nfa;
				if (na == NULL) usage("Expected an argument to -%c",argv[fa][1]);
				strncpy(calname,na,MAXNAMEL); calname[MAXNAMEL] = '\000';
			} else 
				usage("Unknown flag");
		}
		else
			break;
	}

	/* Get the file name argument */
	if (fa >= argc || argv[fa][0] == '-') usage("Expecting basename argument");
	strncpy(inname,argv[fa],MAXNAMEL); inname[MAXNAMEL] = '\000';
	strcpy(outname,inname);
	strcpy(psname,inname);
	strcat(inname,".ti1");
	strcat(outname,".ti2");

	if (calname[0] != '\000') {
		if ((cal = new_xcal()) == NULL)
			error("new_xcal failed");
		if ((cal->read(cal, calname)) != 0)
			error("%s",cal->err);
	}

	/* Set default qantization for known output */
	if (qbits == 0 && oft == 2) { 
		if (tiffdpth == bpc16_2d || tiffdith != 0)
			qbits = 16;
		else if (tiffdpth == bpc8_2d)
			qbits = 8;
	}

	if (itype == instSpectroScan) {
		if (scanc) {
			if (verb)
				printf("Can only select hexagonal patches if no scan recognition is needed - ignored!\n");
			hflag = 0;
		}
	} else if (itype == instColorMunki) {
		/* OK */
	} else if (hflag) {
		if (verb)
			printf("Can only select h flag for SpectrScan or ColorMunki - ignored!\n");
		hflag = 0;
	}

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

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

	icg = new_cgats();	/* Create a CGATS structure */
	icg->add_other(icg, "CTI1"); 	/* our special input type is Calibration Target Information 1 */

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

	if (icg->t[0].tt != tt_other || icg->t[0].oi != 0)
		error ("Input file isn't a CTI1 format file");
	if (icg->ntables < 2 || icg->ntables > 3)
		error ("Input file doesn't contain two or three tables");

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

	/* Allocate room for test patches and maximum padding patches */
	if ((cols = (col *)malloc(sizeof(col) * (npat + MAXPPROW))) == NULL)
		error("Malloc failed!");

	/* Setup output cgats file */
	ocg = new_cgats();	/* Create a CGATS structure */
	ocg->add_other(ocg, "CTI2"); 	/* our special type is Calibration Target Information 2 */
	ocg->add_table(ocg, tt_other, 0);	/* Start the first table */

	ocg->add_kword(ocg, 0, "DESCRIPTOR", "Argyll Calibration Target chart information 2",NULL);
	ocg->add_kword(ocg, 0, "ORIGINATOR", "Argyll printtarg", NULL);
	atm[strlen(atm)-1] = '\000';	/* Remove \n from end */
	ocg->add_kword(ocg, 0, "CREATED",atm, NULL);

	/* Note what instrument the chart is setup for */
	ocg->add_kword(ocg, 0, "TARGET_INSTRUMENT", inst_name(itype) , NULL);

	/* Copy various parameters through */
	if ((wi = icg->find_kword(icg, 0, "SINGLE_DIM_STEPS")) >= 0)
		ocg->add_kword(ocg, 0, "SINGLE_DIM_STEPS",icg->t[0].kdata[wi], NULL);
	
	if ((wi = icg->find_kword(icg, 0, "COMP_GREY_STEPS")) >= 0)
		ocg->add_kword(ocg, 0, "COMP_GREY_STEPS",icg->t[0].kdata[wi], NULL);
	
	if ((wi = icg->find_kword(icg, 0, "MULTI_DIM_STEPS")) >= 0)
		ocg->add_kword(ocg, 0, "MULTI_DIM_STEPS",icg->t[0].kdata[wi], NULL);

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

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

	/* Fields we want */
	ocg->add_field(ocg, 0, "SAMPLE_ID", nqcs_t);
	ocg->add_field(ocg, 0, "SAMPLE_LOC", cs_t);

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

	/* Read the approximate white point */
	if ((fi = icg->find_kword(icg, 0, "APPROX_WHITE_POINT")) < 0)
		error ("Input file doesn't contain keyword APPROX_WHITE_POINT");
	if (sscanf(icg->t[0].kdata[fi], "%lf %lf %lf", &wp[0], &wp[1], &wp[2]) != 3)
		error ("Couldn't parse the white point data correctly");
	wp[0] /= 100.0; wp[1] /= 100.0; wp[2] /= 100.0;
	ocg->add_kword(ocg, 0, "APPROX_WHITE_POINT",icg->t[0].kdata[fi], NULL);

//printf("~1 got approx white point of %f %f %f\n",wp[0],wp[1],wp[2]);

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

	if ((nmask = icx_char2inkmask(icg->t[0].kdata[fi])) != 0) {
		int i, j, ii;
		int chix[ICX_MXINKS];	/* Device chanel indexes */
		int xyzix[3];			/* XYZ chanel indexes */
		char *ident;			/* Full ident */
		char *bident;			/* Base ident */
		char *xyzfname[3] = { "XYZ_X", "XYZ_Y", "XYZ_Z" };
		double qscale = (1 << qbits) - 1.0;

		if (cal != NULL && nmask != cal->devmask)
			error ("Calibration colorspace %s doesn't match .ti1 %s",icx_inkmask2char(cal->devmask, 1),icx_inkmask2char(nmask, 1));

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

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

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

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

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

		for (j = 0; j < 3; j++) {
			if ((ii = icg->find_field(icg, 0, xyzfname[j])) < 0)
				error ("Input '%s' file doesn't contain field %s in first table",inname,xyzfname[j]);
			if (icg->t[0].ftype[ii] != r_t)
				error ("Field %s is wrong type",xyzfname[j]);
	
			ocg->add_field(ocg, 0, xyzfname[j], r_t);
			xyzix[j] = ii;
		}

		ocg->add_kword(ocg, 0, "COLOR_REP", ident, NULL);

		/* Read all the test patches in, and quantize them */
		for (i = 0; i < npat; i++) {
			cols[i].i = i;
			cols[i].t = T_N | T_XYZ;
			if (devnfb)
				cols[i].t |= T_NFB;
			cols[i].nmask = nmask;
			cols[i].altrep = altrep;
			cols[i].n  = nchan;
			cols[i].id = ((char *)icg->t[0].fdata[i][si]);
			sprintf(cols[i].loc, "???");
			for (j = 0; j < nchan; j++) {
				double vr, vv = *((double *)icg->t[0].fdata[i][chix[j]]) / 100.0;
				if (qbits > 0) {
					vv *= qscale;
					vr = floor(vv + 0.5);
					if ((vr - vv) == 0.5 && (((int)vr) & 1) != 0) /* Round to even */
						vr -= 1.0;
					vv = vr/qscale;
				}
				cols[i].dev[j] = vv;
			}
			for (j = 0; j < 3; j++)
				cols[i].XYZ[j] = *((double *)icg->t[0].fdata[i][xyzix[j]]) / 100.0;
			col_convert(&cols[i], wp);	/* Ensure other representations */
		}

		free(ident);
		free(bident);
	} else
		error ("Input file keyword COLOR_REPS has unknown value");

	/* Load up the pre-defined density extreme spacer colors */
	{
		int i, j, ii;
		int nsp;
		int chix[ICX_MXINKS];	/* Device chanel indexes */
		int xyzix[3];			/* XYZ chanel indexes */
		char *bident;
		char *xyzfname[3] = { "XYZ_X", "XYZ_Y", "XYZ_Z" };

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

		if ((nsp = icg->t[1].nsets) <= 0)
			error ("No sets of data in second table");

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

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

			if ((ii = icg->find_field(icg, 1, fname)) < 0)
				error ("Input file '%s' doesn't contain field %s in second table",inname,fname);
			if (icg->t[1].ftype[ii] != r_t)
				error ("Field %s is wrong type",fname);
			chix[j] = ii;
		}

		for (j = 0; j < 3; j++) {
			if ((ii = icg->find_field(icg, 1, xyzfname[j])) < 0)
				error ("Input file '%s' doesn't contain field %s in second table",inname,xyzfname[j]);
			if (icg->t[1].ftype[ii] != r_t)
				error ("Field %s is wrong type",xyzfname[j]);
			xyzix[j] = ii;
		}

		if (nsp != 8)
			error ("Expect second set of data to have 8 sets, found %d",nsp);

		/* Read all the density spacer patches in */
		for (i = 0; i < nsp; i++) {
			pcold[i].i = -1;
			pcold[i].t = T_N | T_XYZ | T_PRESET;
			if (devnfb)
				pcold[i].t |= T_NFB;
			pcold[i].nmask = nmask;
			pcold[i].altrep = altrep;
			pcold[i].n  = nchan;
			pcold[i].id = "";
			sprintf(cols[i].loc, "???");
			for (j = 0; j < nchan; j++)
				pcold[i].dev[j] = *((double *)icg->t[1].fdata[i][chix[j]]) / 100.0;
			for (j = 0; j < 3; j++)
				pcold[i].XYZ[j] = *((double *)icg->t[1].fdata[i][xyzix[j]]) / 100.0;
			col_convert(&pcold[i], wp);	/* Ensure other representations */
		}

		free(bident);
	}

	/* Load up the pre-defined device combination barcode colors */
	if (icg->ntables >= 3) {
		int i, j, ii;
		int nsp;
		int chix[ICX_MXINKS];	/* Device chanel indexes */
		int xyzix[3];			/* XYZ chanel indexes */
		char *bident;			/* Base ident */
		char *xyzfname[3] = { "XYZ_X", "XYZ_Y", "XYZ_Z" };

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

		if ((nsp = icg->t[2].nsets) > 0) {

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

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

				if ((ii = icg->find_field(icg, 2, fname)) < 0)
					error ("Input file '%s' doesn't contain field %s in third table",inname,fname);
				if (icg->t[2].ftype[ii] != r_t)
					error ("Field %s is wrong type",fname);
				chix[j] = ii;
			}

			for (j = 0; j < 3; j++) {
				if ((ii = icg->find_field(icg, 2, xyzfname[j])) < 0)
					error ("Input file '%s' doesn't contain field %s in third table",inname,xyzfname[j]);
				if (icg->t[2].ftype[ii] != r_t)
					error ("Field %s is wrong type",xyzfname[j]);
				xyzix[j] = ii;
			}

			if (nsp != 9)
				error ("Expect third set of data to have 9 sets, found %d",nsp);

			/* Read all the barcode CMY color patches in */
			for (i = 0; i < nsp; i++) {
				pcolv[i].i = -1;
				pcolv[i].t = T_N | T_XYZ | T_PRESET;
				if (devnfb)
					pcolv[i].t |= T_NFB;
				pcolv[i].nmask = nmask;
				pcolv[i].altrep = altrep;
				pcolv[i].n  = nchan;
				pcolv[i].id = "";
				sprintf(cols[i].loc, "???");
				for (j = 0; j < nchan; j++)
					pcolv[i].dev[j] = *((double *)icg->t[2].fdata[i][chix[j]]) / 100.0;
				for (j = 0; j < 3; j++)
					pcolv[i].XYZ[j] = *((double *)icg->t[2].fdata[i][xyzix[j]]) / 100.0;
				col_convert(&pcolv[i], wp);	/* Ensure other representations */
			}

			free(bident);
			pcolvv = 1;
		}
	}

	if (verb) {
		if (pap != NULL)
			printf("Paper chosen is %s	[%.1f x %.1f mm]\n", pap->name, pap->w, pap->h);
		else
			printf("Paper chosen is custom %.1f x %.1f mm\n", cwidth, cheight);
	}

	if (rstart == -1) {
		rstart = clk % npat;
	} else {
		rstart = rstart % npat;
	}
	sprintf(buf,"%d",rstart);
	if (rand)
		ocg->add_kword(ocg, 0, "RANDOM_START", buf, NULL);
	else
		ocg->add_kword(ocg, 0, "CHART_ID", buf, NULL);

	if (itype == instSpectroScan && hflag) {
		ocg->add_kword(ocg, 0, "HEXAGON_PATCHES", "True", NULL);
	}

	if (itype == instDTP20) {
		if (pcolvv == 0)
			error("Input file '%s' doesn't contain device combination table needed for DTP20",inname);
		pcol = pcolv;		/* Barcode color values */
	} else
		pcol = pcold;		/* Density spacer alues */

	
	sprintf(label, "ArgyllCMS - Chart \"%s\" (%s %d) %s",
	               psname, rand ? "Random Start" : "Chart ID", rstart, atm);
	generate_file(itype, psname, cols, npat, applycal ? cal : NULL, label,
	            pap != NULL ? pap->w : cwidth, pap != NULL ? pap->h : cheight,
	            marg, nosubmarg, nollimit, nolpcbord, rand, rstart, saix, paix,	ixord,
	            pscale, sscale, hflag, verb, scanc, oft, nocups, tiffdpth, tiffres, ncha, tiffdith,
	            tiffcomp, spacer, nmask, altrep, pcol, wp,
	            &sip, &pis, &plen, &glen, &tlen, &nppat);

	if (itype == instDTP20
	 || itype == instDTP41) {	/* DTP20/41 needs this */
		sprintf(buf,"%f",plen);
		ocg->add_kword(ocg, 0, "PATCH_LENGTH", buf, NULL);
		sprintf(buf,"%f",glen);
		ocg->add_kword(ocg, 0, "GAP_LENGTH", buf, NULL);
		if (itype == instDTP41) {	/* DTP41 needs this */
			sprintf(buf,"%f",tlen);
			ocg->add_kword(ocg, 0, "TRAILER_LENGTH", buf, NULL);
		}
	}

	sprintf(buf,"%d",sip);
	ocg->add_kword(ocg, 0, "STEPS_IN_PASS", buf, NULL);

	/* Convert pass in strips count to base 62 */
	buf[0] = '\000';
	bp = buf;
	for (i = 0; ;i++) {
		if (pis[i] == 0)
			break;
		sprintf(bp, "%s%d", i > 0 ? "," : "", pis[i]);
		bp += strlen(bp);
	}
	ocg->add_kword(ocg, 0, "PASSES_IN_STRIPS2", buf, NULL);

	/* Output the default Argyll style strip and patch numbering */
	ocg->add_kword(ocg, 0, "STRIP_INDEX_PATTERN", sixpat, NULL);
	ocg->add_kword(ocg, 0, "PATCH_INDEX_PATTERN", pixpat, NULL);
	ocg->add_kword(ocg, 0, "INDEX_ORDER", ixord ? "PATCH_THEN_STRIP" : "STRIP_THEN_PATCH", NULL);

	/* Write out the patch info to the output CGATS file */
	for (i = 0; i < nppat; i++) {
		cgats_set_elem ary[2 + ICX_MXINKS + 3];
		int j;

		if (strcmp(cols[i].loc, "???") == 0)
			warning ("Internal, patch %s (%d) wasn't given a valid location string",cols[i].id,i+1);
		ary[0].c = cols[i].id;
		ary[1].c = cols[i].loc;
		for (j = 0; j < nchan; j++)
			ary[2 + j].d = 100.0 * cols[i].dev[j];
		for (j = 0; j < 3; j++)
			ary[2 + nchan + j].d = 100.0 * cols[i].XYZ[j];
		ocg->add_setarr(ocg, 0, ary);
	}

	/* If there is a calibration, append it to the .ti2 file */
	if (cal != NULL) {
		if (cal->write_cgats(cal, ocg) != 0)
			error("Writing cal error : %s",cal->err);
	}

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

	if (cal != NULL)
		cal->del(cal);
	paix->del(paix);
	saix->del(saix);
	free(pis);
	free(cols);
	ocg->del(ocg);		/* Clean up */
	icg->del(icg);		/* Clean up */

	return 0;
}

/******************************************************************/
/* Edge tracking support, for generating the scanner image        */
/* recognition reference chart file. */

/* Establish width and height to convert between topleft and */
/* bottom left origin ??? ~~9 */

/*
	Basic algorithm strategy:

	First we simply accumulate the raw recognition and patch
	identification information. Once the chart is generated, we:
		sort into horizontal and vertical half edges
		sort into +ve and -ve edges
		match +ve and -ve edges
		for each match, generate a delta edge segment
		Assume any non-matched edges are against the media.
		Coalesce delta edges into X & Y edge lists
		Compute normalised strength.
		Compute crossing count.
		Figure average box size, and compute shrink.
		
*/

/* A half edge structure */
/* coordinate origin is top left */
struct _hedge {
	int ix;			/* Index for debug id */
	double rgb[3];	/* Color this half edge transitions to */
	int negh;		/* 1 if this is a -ve major coordinate side half edge, 0 otherwise */
	double mj;		/* Major coordinate offset (ie. X coord for vertical edge) */
	double mi0;		/* Minor coordinate smaller value (ie. Y for vertical edge) */
	double mi1;		/* Minor coordinate larger value (ie. Y for vertical edge) */
	struct _hedge *next;	/* Next in linked list */
}; typedef struct _hedge hedge;

/* A patch identifier */
/* coordinate origin is top left */
struct _patch {
	char id[20];	/* ID string, Zero length if a diagnostic rectangle */
	double xo;		/* Location of the rectangle origin (bottom left ???) */
	double yo;
	double w;		/* Size of the patch */
	double h;
	struct _patch *next;	/* Next in linked list */
}; typedef struct _patch patch;


/* Structure to one edge */
struct _edge {
	double p1,p2;	/* Start and end of line in orthogonal direction */
	struct _edge *next;	/* next in the linked list */
}; typedef struct _edge edge;

/* Structure of an edge list */
struct _elist {
	double pos;		/* Position of edges along major axis */
	double len;		/* Total length of edges atthis position */
	double cc;		/* Crossing count */
	int ne;			/* Count of edges */
	edge *e;		/* Head of linked list of edges at this position */
	struct _elist *next;	/* Next in linked list */
}; typedef struct _elist elist;

/* - - - - - - - - - - - - - - - - - - - */
/* Structure to track recognition edges */
struct {
	double height;	/* Height of the page */
	double mrgb[3];	/* Media RGB */	
	double rgb[3];	/* Currently set RGB */	

	int nfid;		/* Number of fiducial marks. Must be 4 to cause output */
	double fx[4];	/* Fiducial mark X coordinates */
	double fy[4];	/* Fiducial mark Y coordinates */

	/* Raw half edge lists, [vertical, horizontal] */
	int nhe[2];
	hedge *he[2];	/* Pointer to start of hedhe linked list */

	/* Patch identity information */
	int npatches;
	patch *patches;

	/* Processed information */
	hedge **she[2];	/* Sorted half edges */

	int nel[2];		/* Number of edge positions */
	elist *el[2];	/* Head of edge linked list */
	elist **nelp;	/* Next edge to append to */
} et;

/* Initialise the structure */
void et_init(void) {
	memset(&et, 0, sizeof(et));
}

/* Tell et of the height, so the Y coordinate can be flipped */
void et_height(double height) {
	et.height = height;
//printf("~1 media height set to %f\n",height);
}

/* Tell et of the media color */
void et_media(double *rgb) {
	int e;
	for (e = 0; e < 3; e++)
		et.mrgb[e] = rgb[e];
}

/* Track the current GC color */
void et_color(
double *rgb		/* New RGB values */
) {
	int e;
	for (e = 0; e < 3; e++)
		et.rgb[e] = rgb[e];
}

/* Track a drawn object half edge */
/* We assume that no object is written over any other object, */
/* and that each half edge has a perfect opposite edge (ie. same */
/* mi0 and mi1), or no matching half edge (it is over the media) - */
/* ie. no partialy overlapping half edges. */
/* The arguments origin is assumed to be bottom left */
void et_edge(
int isx,		/* NZ if this is a vertical edge */
int negh,		/* NZ if this is a -ve major coordinate side half edge */
double mj,		/* Major coordinate offset (ie. X coord for vertical edge) */
double mi0,		/* Minor coordinate smaller value (ie. Y for vertical edge) */
double mi1		/* Minor coordinate larger value (ie. Y for vertical edge) */
) {
	int e, h;
	hedge *he;

	if (mi1 < mi0)
		error ("et_edge, minor coords wern't ordered");

	if ((he = (hedge *)calloc(sizeof(hedge), 1)) == NULL)
		error("Malloc of half edge structure failed");

	for (e = 0; e < 3; e++)
		he->rgb[e] = et.rgb[e];

	/* Flip the Y coordinate */
	if (isx) {
		double tmi0, tmi1;
		tmi0 = et.height - mi1;		/* swap to keep smallest small */
		tmi1 = et.height - mi0;
		mi0 = tmi0;
		mi1 = tmi1;
	} else {
		mj = et.height - mj;
	}

	he->negh = negh ? 1 : 0;
	he->mj   = mj;
	he->mi0  = mi0;
	he->mi1  = mi1;

	/* Add half edges to the list */
	h = isx ? 0 : 1;
	et.nhe[h]++;
	he->next = et.he[h];
	et.he[h] = he;
}

/* Track a patch identity */
/* The arguments origin is assumed to be bottom left */
void et_patch(
char  *id,		/* ID string, NULL if a diagnostic mark */
double xo,		/* Bottom left of the rectangle */
double yo,
double w,		/* Size of the patch */
double h
) {
	patch *p;

//printf("~1 got patch at %f %f, w %f, h %f\n", xo, yo, w, h);

	if ((p = (patch *)calloc(sizeof(patch), 1)) == NULL)
		error("Malloc of patch structure failed");

	/* Flip Y */
	yo = et.height - (yo + h);

	if (id != NULL) {
		strncpy(p->id, id, 19);
		p->id[19] = '\000';
	} else {
		p->id[0] = '\000';
	}
	p->xo = xo;
	p->yo = yo;
	p->h  = h;
	p->w  = w;

	/* Add patch to list */
	et.npatches++;
	p->next = et.patches;
	et.patches = p;
}

/* Add a fiducial mark location */
/* It is an error to add more than 4, */
/* and exactly 4 have to be added to cause fiducials to be output. */
void et_fiducial(
double x,		/* Bottom left of the rectangle */
double y
) {
	if (et.nfid >= 4)
		error("et_fiducial: too many fiducial marks");
	et.fx[et.nfid] = x;
	et.fy[et.nfid] = et.height - y;		/* Flip Y */
	et.nfid++;
}

/* Compute the image recognition information, and write the */
/* .cht file. */
void et_write(char *fname, col *cols, int *rix, int si, int ei) {
	FILE *of;
	hedge *ep0, *ep1, *epe;
	int i, h;

//printf("~1 et has %d vertical and %d horizontal half edges\n", et.nhe[0], et.nhe[1]);
//printf("~1 et has %d patches\n", et.npatches);

	/* Do X then Y */
	for (h = 0; h < 2; h++) {

		/* Create sorted list of vertical half edges */
		if ((et.she[h] = (hedge **)malloc(sizeof(patch*) * et.nhe[h])) == NULL)
			error("Malloc of array of vertical halfedge pointers failed");
	
		for (ep0 = et.he[h], i = 0; i < et.nhe[h]; i++, ep0 = ep0->next)
			et.she[h][i] = ep0;
	
		/* Sort helf edges by their X location, then their Y0 location */
#define HEAP_COMPARE(A,B) (fabs(A->mj - B->mj) < 1e-6 ? A->mi0 < B->mi0 : A->mj < B->mj)
		HEAPSORT(hedge *, et.she[h], et.nhe[h]);
#undef HEAP_COMPARE

		/* Re-create the linked list in sorted order */
		et.he[h] = NULL;
		for (i = et.nhe[h]-1; i >= 0; i--) {
			et.she[h][i]->next = et.he[h];
			et.he[h] = et.she[h][i];
			et.he[h]->ix = i;
		}
		
		free(et.she[h]);
		et.she[h] = NULL;

#ifdef DEBUG
		fprintf(stderr,"Sorted %s half edges:\n",h ? "Vertical" : "Horizontal");
		for (ep0 = et.he[h]; ep0 != NULL; ep0 = ep0->next) {
			fprintf(stderr,"%s %d at %c = %f from %c = %f to %f\n",
			h == 0 ? "Vert" : "Horiz", ep0->ix,
			h == 0 ? 'X' : 'Y', ep0->mj,
			h == 0 ? 'Y' : 'X', ep0->mi0, ep0->mi1);
		}
#endif /* DEBUG */

		/* Do a first pass to locate and split any part overlapping pairs of edges */
		for (ep0 = et.he[h]; ep0 != NULL; ep0 = epe) {

			/* Locate the end of the half edges at the same position */
			for (epe = ep0; epe != NULL; epe = epe->next) {
				if (epe == NULL || fabs(ep0->mj - epe->mj) > 1e-6)
					break;
			}

#ifdef DEBUG
			fprintf(stderr,"Doing group from %d to %d\n",ep0->ix, epe ? epe->ix : -1);
#endif

			/* Look for overlapping half edges, and split them up so */
			/* there are no overlaps */
			for (; ep0 != epe; ep0 = ep0->next) {

				for (ep1 = ep0->next; ep1 != epe; ep1 = ep1->next) {

					if (ep1->mi0 > ep0->mi1)	/* Out of range for overlap */
						break;

					/* If partial overlap */
					if (ep0->mi0 < (ep1->mi0-1e-6)
					 && ep0->mi1 > (ep1->mi0+1e-6)
					 && ep0->mi1 < (ep1->mi1-1e-6)) {
						hedge *ep0b, *ep1b;
						
#ifdef DEBUG
						fprintf(stderr,"Half edges partial overlap:\n");
						fprintf(stderr,"i = %d, j = %d\n",ep0->ix,ep1->ix);
						fprintf(stderr,"%s %d at %c = %f from %c = %f to %f, half %s\n",
						h == 0 ? "Vert" : "Horiz", ep0->ix,
						h == 0 ? 'X' : 'Y', ep0->mj,
						h == 0 ? 'Y' : 'X', ep0->mi0, ep0->mi1,
						ep0->negh ? "Neg" : "Pos");
						fprintf(stderr,"%s %d at %c = %f from %c = %f to %f, half %s\n",
						h == 0 ? "Vert" : "Horiz", ep1->ix,
						h == 0 ? 'X' : 'Y', ep1->mj,
						h == 0 ? 'Y' : 'X', ep1->mi0, ep1->mi1,
						ep1->negh ? "Neg" : "Pos");
#endif
						/* Split up the two edges so that we have four edges */
						
						if ((ep0b = (hedge *)calloc(sizeof(hedge), 1)) == NULL)
							error("Malloc of half edge structure failed");
						memcpy(ep0b, ep0, sizeof(hedge));

						if ((ep1b = (hedge *)calloc(sizeof(hedge), 1)) == NULL)
							error("Malloc of half edge structure failed");
						memcpy(ep1b, ep1, sizeof(hedge));

						ep0b->mi0 = ep1->mi0;
						ep1b->mi1 = ep0->mi1;
						ep0->mi1 = ep1->mi0;
						ep1->mi0 = ep0->mi1;

						/* Insert them in order into linked list */
						ep1b->next = ep1;
						ep0b->next = ep1b;
						ep0->next = ep0b;

						et.nhe[h] += 2;

					/* If full overlap */
					} else if (ep0->mi0 < (ep1->mi0-1e-6)
					 && ep0->mi1 > (ep1->mi1+1e-6)) {
						hedge *ep0b, *ep0c;
						
#ifdef DEBUG
						fprintf(stderr,"Half edges full overlap:\n");
						fprintf(stderr,"i = %d, j = %d\n",ep0->ix,ep1->ix);
						fprintf(stderr,"%s %d at %c = %f from %c = %f to %f, half %s\n",
						h == 0 ? "Vert" : "Horiz", ep0->ix,
						h == 0 ? 'X' : 'Y', ep0->mj,
						h == 0 ? 'Y' : 'X', ep0->mi0, ep0->mi1,
						ep0->negh ? "Neg" : "Pos");
						fprintf(stderr,"%s %d at %c = %f from %c = %f to %f, half %s\n",
						h == 0 ? "Vert" : "Horiz", ep1->ix,
						h == 0 ? 'X' : 'Y', ep1->mj,
						h == 0 ? 'Y' : 'X', ep1->mi0, ep1->mi1,
						ep1->negh ? "Neg" : "Pos");
#endif
						/* Split up the first edge so that we have four edges */
						
						if ((ep0b = (hedge *)calloc(sizeof(hedge), 1)) == NULL)
							error("Malloc of half edge structure failed");
						memcpy(ep0b, ep0, sizeof(hedge));

						if ((ep0c = (hedge *)calloc(sizeof(hedge), 1)) == NULL)
							error("Malloc of half edge structure failed");
						memcpy(ep0c, ep0, sizeof(hedge));

						ep0b->mi0 = ep1->mi0;
						ep0b->mi1 = ep1->mi1;
						ep0c->mi0 = ep1->mi1;
						ep0->mi1 = ep1->mi0;

						/* Insert them in order into linked list */
						ep0c->next = ep1->next;
						ep1->next = ep0c;
						ep0b->next = ep1;
						ep0->next = ep0b;
						et.nhe[h] += 2;
					}
				}
			}
		}

		/* Now we can assume that edges match completely or not at all */

		/* Re-create sorted list of vertical half edges */
		/* (Instead of this we could convert the half edge matching loops */
		/*  below to use the linked list, like the above code.) */

		if ((et.she[h] = (hedge **)malloc(sizeof(patch*) * et.nhe[h])) == NULL)
			error("Malloc of array of vertical halfedge pointers failed");
	
		for (ep0 = et.he[h], i = 0; i < et.nhe[h]; i++, ep0 = ep0->next)
			et.she[h][i] = ep0;
	
		/* Sort helf edges by their X location, then their Y0 location */
#define HEAP_COMPARE(A,B) (fabs(A->mj - B->mj) < 1e-6 ? A->mi0 < B->mi0 : A->mj < B->mj)
		HEAPSORT(hedge *, et.she[h], et.nhe[h]);
#undef HEAP_COMPARE

		et.nel[h] = 0;
		et.nelp = &et.el[h];		/* Append next edge list here */
		*et.nelp = NULL;			/* No edge list at this position yet */

		/* Create the edge list information */
		for (i = 0; i < et.nhe[h];) {
			int j, ii, nj;
			double *rgb = NULL;	/* Contrast RGB */
			elist *el;		/* Current elist */

			el = *et.nelp;	/* current end of lits */

			/* Locate the end of the half edges at the same position */
			for (ii = i; ii < et.nhe[h]; ii++) {
				if (fabs(et.she[h][i]->mj - et.she[h][ii]->mj) > 1e-6)
					break;
			}

#ifdef DEBUG
			fprintf(stderr,"Doing group from %d to %d\n",i, ii);
#endif

			/* Find half edge pairs */
			/* Note that we assume that the half edges match perfectly, */
			/* or not at all. */
			for (j = i; j < ii; j = nj, j++) {
				int e, k = j+1;
				double vv;

				if (k < ii
				 && et.she[h][j]->negh != et.she[h][k]->negh
				 && fabs(et.she[h][j]->mi0 - et.she[h][k]->mi0) < 1e-5
				 && fabs(et.she[h][j]->mi1 - et.she[h][k]->mi1) < 1e-5) {
					/* Found a matching half edge */

					nj = k;
					rgb = et.she[h][k]->rgb;

				} else if (k < ii	/* Assert */
				 && (   (et.she[h][j]->mi0+1e-6) < et.she[h][k]->mi1
				     && et.she[h][j]->mi1 > (et.she[h][k]->mi0+1e-6))) {

					/* Found an overlapping non-matching edge */
					nj = k;

#ifdef DEBUG
					fprintf(stderr,"Half edges overlap but don't match:\n");
					fprintf(stderr,"i = %d, j = %d\n",i,j);
					fprintf(stderr,"%s %d at %c = %f from %c = %f to %f, half %s\n",
					h == 0 ? "Vert" : "Horiz", i,
					h == 0 ? 'X' : 'Y', et.she[h][j]->mj,
					h == 0 ? 'Y' : 'X', et.she[h][j]->mi0, et.she[h][j]->mi1,
					et.she[h][j]->negh ? "Neg" : "Pos");
					fprintf(stderr,"%s %d at %c = %f from %c = %f to %f, half %s\n",
					h == 0 ? "Vert" : "Horiz", j,
					h == 0 ? 'X' : 'Y', et.she[h][k]->mj,
					h == 0 ? 'Y' : 'X', et.she[h][k]->mi0, et.she[h][k]->mi1,
					et.she[h][k]->negh ? "Neg" : "Pos");
#endif /* DEBUG */
						error("Internal - half edges don't match");

				} else {
					/* Must be a non-matching edge against the media */
					nj = j;
					rgb = et.mrgb;
				}

				/* Compute vector delta in rgb */
				/* Add entry to edge list */
				for (e = 0, vv = 0.0; e < 3; e++) {
					double tt = rgb[e] - et.she[h][j]->rgb[e];
					vv += tt * tt;
				}

//printf("~1 h %d, mj %f, mi %f, vv = %f\n",h, et.she[h][j]->mj, et.she[h][j]->mi0, vv);
				/* If edge is of sufficient magnitude */
				// ~~99
				if (vv > 0.2) {
					edge *ep;

					/* See if we need to add a first elist for this position */
					if (el == NULL) {		/* We do */
						if ((el = (elist *)calloc(sizeof(elist), 1)) == NULL)
							error("Malloc of elist structure failed");
						*et.nelp = el;
						el->pos = et.she[h][j]->mj;
						et.nel[h]++;
					}

					/* Add another edge entry */
					if ((ep = (edge *)calloc(sizeof(edge), 1)) == NULL)
						error("Malloc of edge structure failed");

					ep->next = el->e;
					ep->p1 = et.she[h][j]->mi0;
					ep->p2 = et.she[h][j]->mi1;

					el->e = ep;		/* Add to edge list */
					el->ne++;
				}
			}

			if (el != NULL) {
				/* We've done that position, so get ready for next */
				et.nelp = &el->next;		/* Append any more positions here */
				*et.nelp = NULL;
			}
			i = ii;		/* Start search for next group here */
		}
	}

	/* Figure the crossing count */
	for (h = 0; h < 2; h++) {
		int oh = 1 - h;	/* The other list */
		elist *el, *pl;		/* Current, previous elist */

		for (pl = NULL, el = et.el[h]; el != NULL; pl = el, el = el->next) {
			edge *ep;
			double pp, np;	/* Window in pos direction for crossing */

			if (pl != NULL)
				pp = (pl->pos + el->pos)/2.0;	/* Half distance to next line */
			else
				pp = -1e6;

			if (el->next != NULL)
				np = (el->next->pos + el->pos)/2.0;	/* Half distance to next line */
			else
				np = 1e6;

			/* For each edge on this edge position */
			for (ep = el->e; ep != NULL; ep = ep->next) {
				elist *oel;		/* Other edge list pointer */

				/* For each edge in other list */
				for (oel = et.el[oh]; oel != NULL; oel = oel->next) {
					edge *oep;

					if (oel->pos < ep->p1 || oel->pos > ep->p2)
						continue;	/* Other edge doesn't intersect this segment */

					for (oep = oel->e; oep != NULL; oep = oep->next) {

						/* If crosses on this line within +-0.5 of line each side */
						if (oep->p1 <= np && oep->p2 >= pp) {
							el->cc++;	/* Count crossing */
						}

					}
				}
			}
		}
	}

	/* Compute and normalise the length (strength) & crossing count of each edge */
	for (h = 0; h < 2; h++) {
		elist *el;		/* Current elist */
		double maxlen = 0.0;  
		double maxcc = 0.0;  

		for (el = et.el[h]; el != NULL; el = el->next) {
			edge *ep;
			double tlen;

			for (tlen = 0.0, ep = el->e; ep != NULL; ep = ep->next) {
				tlen += ep->p2 - ep->p1;
			}
			el->len = tlen;
			if (maxlen < tlen)
				maxlen = tlen;
			if (maxcc < el->cc)
				maxcc = el->cc;
		}

		/* Normalise */
		for (el = et.el[h]; el != NULL; el = el->next) {
			el->len /= maxlen;
			el->cc  /= maxcc;
		}
	}

	/* Output the .cht file */
	if ((of = fopen(fname,"w")) == NULL)
			error ("Unable to open output file '%s' for writing",fname);
	
	fprintf(of,"\n\n");
	fprintf(of, "BOXES %d\n",et.npatches);


	/* Locate fiducials if they've been added to chart */
	if (et.nfid == 4) {
		fprintf(of, "  F _ _ %f %f %f %f %f %f %f %f\n",
		        et.fx[0], et.fy[0], et.fx[1], et.fy[1], et.fx[2], et.fy[2], et.fx[3], et.fy[3]);
	}

	{
		int fidc = 0;
		patch *pp;
		double mins;		/* Minimum sample box size */

		for (pp = et.patches; pp != NULL; pp = pp->next) {

			if (pp->id[0] == '\000') {
				fprintf(of, "  D MARK%d MARK%d _ _ %f %f %f %f 0 0\n",
				        fidc, fidc, pp->w, pp->h, pp->xo, pp->yo);
				fidc++;
			}
		}
		
		mins = 1e6;
		for (pp = et.patches; pp != NULL; pp = pp->next) {

			if (pp->id[0] != '\000') {
				fprintf(of, "  X %s %s _ _ %f %f %f %f 0 0\n",
				        pp->id, pp->id, pp->w, pp->h, pp->xo, pp->yo);
				if (mins > pp->w)
					mins = pp->w;
				if (mins > pp->h)
					mins = pp->h;
			}
		}
		fprintf(of,"\n");
		
		/* Use a 15% box shrink */
		fprintf(of, "BOX_SHRINK %f\n", mins * 0.15);
		fprintf(of,"\n");

	}

	fprintf(of,"REF_ROTATION %f\n", 0.0);
	fprintf(of,"\n");

	{
		elist *el;		/* Current elist */

		fprintf(of,"XLIST %d\n",et.nel[0]);
		for (el = et.el[0]; el != NULL; el = el->next)
			fprintf(of,"  %f %f %f\n",el->pos, el->len, el->cc);
		fprintf(of,"\n");
	
		fprintf(of,"YLIST %d\n",et.nel[1]);
		for (el = et.el[1]; el != NULL; el = el->next)
			fprintf(of,"  %f %f %f\n",el->pos, el->len, el->cc);
		fprintf(of,"\n");
	
		fprintf(of,"\n");
	}


	fprintf(of, "EXPECTED XYZ %d\n",ei - si);

	for (i = si; i < ei; i++) {
		int ix = rix[i];
		fprintf(of, "  %s %f %f %f\n", cols[ix].loc, 100.0 * cols[ix].XYZ[0], 100.0 * cols[ix].XYZ[1], 100.0 * cols[ix].XYZ[2]);
	}
	fprintf(of,"\n");

	if (fclose(of))
		error ("Unable to close output file '%s'",fname);
}


/* Cleanup any allocation */
void et_clear(void) {
	int h;
	patch *p;

	et.nfid = 0;

	for (h = 0; h < 2; h++) {
		hedge *he;
		elist *el;

		/* Free up half edges */
		he = et.he[h];
		while (he != NULL) {
			hedge *ne = he->next;
			free(he);
			he = ne;
		}
		et.nhe[h] = 0;
		et.he[h] = NULL;
	
		/* Free up sorted half edge lists */
		if (et.she[h] != NULL)
			free(et.she[h]);
		et.she[h] = NULL;

		/* Free up edge lists and edges */
		el = et.el[h];
		while (el != NULL) {
			elist *nel;
			edge  *ep;

			ep = el->e;
			while (ep != NULL) {
				edge *nep;

				nep = ep->next;
				free(ep);
				ep = nep;
			}
			el->ne = 0;
			el->e = NULL;

			nel = el->next;
			free(el);
			el = nel;
		}
		et.nel[h] = 0;
		et.el[h] = NULL;
	}
	et.nelp = NULL;

	p = et.patches;
	while (p != NULL) {
		patch *np = p->next;
		free(p);
		p = np;
	}
	et.patches = NULL;
	et.npatches = 0;
}