summaryrefslogtreecommitdiff
path: root/Build/source/libs/type1/type1.c
blob: 7018882cc679c91d5dcbc0612eff0cdbdd7d2588 (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
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
/* $XConsortium: type1.c,v 1.5 91/10/10 11:20:06 rws Exp $ */
/* Copyright International Business Machines, Corp. 1991
 * All Rights Reserved
 * Copyright Lexmark International, Inc. 1991
 * All Rights Reserved
 * Portions Copyright (c) 1990 Adobe Systems Incorporated.
 * All Rights Reserved
 *
 * License to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted,
 * provided that the above copyright notice appear in all copies and that
 * both that copyright notice and this permission notice appear in
 * supporting documentation, and that the name of IBM or Lexmark or Adobe
 * not be used in advertising or publicity pertaining to distribution of
 * the software without specific, written prior permission.
 *
 * IBM, LEXMARK, AND ADOBE PROVIDE THIS SOFTWARE "AS IS", WITHOUT ANY
 * WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT
 * LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.  THE
 * ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE, INCLUDING
 * ANY DUTY TO SUPPORT OR MAINTAIN, BELONGS TO THE LICENSEE.  SHOULD ANY
 * PORTION OF THE SOFTWARE PROVE DEFECTIVE, THE LICENSEE (NOT IBM,
 * LEXMARK, OR ADOBE) ASSUMES THE ENTIRE COST OF ALL SERVICING, REPAIR AND
 * CORRECTION.  IN NO EVENT SHALL IBM, LEXMARK, OR ADOBE BE LIABLE FOR ANY
 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
/*********************************************************************/
/*                                                                   */
/* Type 1 module - Converting fonts in Adobe Type 1 Font Format      */
/*                 to scaled and hinted paths for rasterization.     */
/*                 Files: type1.c, type1.h, and blues.h.             */
/*                                                                   */
/* Authors:   Sten F. Andler, IBM Almaden Research Center            */
/*                 (Type 1 interpreter, stem & flex hints)           */
/*                                                                   */
/*            Patrick A. Casey, Lexmark International, Inc.          */
/*                 (Font level hints & stem hints)                   */
/*                                                                   */
/*********************************************************************/


/* Write debug info into a PostScript file? */
/* #define DUMPDEBUGPATH */
/* If Dumping a debug path, should we dump both character and
   outline path? Warning: Do never enable this, unless, your name
   is Rainer Menzner and you know what you are doing! */
/* #define DUMPDEBUGPATHBOTH */

/* Generate a bunch of stderr output to understand and debug
   the generation of outline surrounding curves */
/* #define DEBUG_OUTLINE_SURROUNDING */

#define SUBPATH_CLOSED     1
#define SUBPATH_OPEN       0

/******************/
/* Include Files: */
/******************/
#include  "types.h"
#include  <stdio.h>          /* a system-dependent include, usually */
#include  <math.h>
#include  <stdlib.h>

#include  "objects.h"
#include  "spaces.h"
#include  "paths.h"
#include  "fonts.h"        /* understands about TEXTTYPEs */
#include  "pictures.h"     /* understands about handles */
 
typedef struct xobject xobject;
#include  "util.h"       /* PostScript objects */
#include  "fontfcn.h"
#include  "blues.h"          /* Blues structure for font-level hints */


/* Considerations about hinting (2002-07-11, RMz (Author of t1lib))

   It turns out that the hinting code as used until now produces some
   artifacts in which may show up in suboptimal bitmaps. I have therefore
   redesigned the algorithm. It is generally a bad idea to hint every
   point that falls into a stem hint.

   The idea is to hint only points for
   which at least one of the two neighboring curve/line segments is aligned
   with the stem in question. For curves, we are speaking about the
   tangent line, that is, the line defined by (p1-p2) or (p3-p4).

   For vertical stems this means, that only points which are connected
   exactly into vertical direction are hinted. That is, the dx of the
   respective curve vanishes. For horizontal stems, accordingly, dy must
   vanish at least on one hand side of the point in order to be considered
   as a stem.

   Unfortunately this principle requires information about both sides of the
   neighborhood of the point in question. In other words, it is not possible
   to define a segment completely until the next segment has been inspected.
   The idea thus is not compatible with the code in this file.

   Furthermore, if certain points of a character outline are hinted according
   to the stem hint info from the charstring, the non-hinted points may not be
   left untouched. This would lead to very strong artifacts at small sizes,
   especially if characters are defined in terms of curves. This is predominantly
   the case for ComputerModern, for example.

   To conclude, it is best to build a point list from the character description
   adjust the non-hinted points after hinting has been completely finished. 

   
   Another rule we should state is
   
   We can work around this by not directly connecting the path segments at
   the end of the lineto/curveto's, but rather deferring this to the beginning
   of the next path constructing function. It's not great but it should work.

   The functions that produce segments are

   1) RMoveTo()
   2) RLineto()
   3) RRCurveTo()
   4) DoClosePath()

   Their code is moved into the switch statement of the new function
   handleCurrentSegment(). This function is called when a new segment generating
   operation has been decoded from the charstring. At this point a serious
   decision about how to hint the points is possible.

   ...
*/


/* The following struct is used to record points that define a path
   in absolute charspace coordinates. x and y describe the location and
   hinted, if greater 0, indicates that this point has been hinted. Bit 0
   (0x1) indicates vertically adjusted and Bit 1 (0x2) indicates
   horizontally adjusted. If hinted == -1, this point is not to be hinted
   at all. This, for example, is the case for a a (H)SBW command.

   The member type can be one of

   PPOINT_SBW                --> initial path point as setup by (H)SBW
   PPOINT_MOVE               --> point that finishes a MOVE segment
   PPOINT_LINE               --> point that finishes a LINE segment
   PPOINT_BEZIER_B           --> second point of a BEZIER segment
   PPOINT_BEZIER_C           --> third point of a BEZIER segment
   PPOINT_BEZIER_D           --> fourth point of a BEZIER segment
   PPOINT_CLOSEPATH          --> a ClosePath command
   PPOINT_ENDCHAR            --> an EndChar command
   PPOINT_SEAC               --> a Standard Encoding Accented Char command
   PPOINT_NONE               --> an invalid entry
   

   Note: BEZIER_B and BEZIER_C points generally cannot be flagged as
   being hinted because are off-curve points.
*/
typedef struct 
{
  double x;              /* x-coordinate */
  double y;              /* y-coordinate */
  double ax;             /* adjusted x-coordinate */
  double ay;             /* adjusted y-coordinate */
  double dxpr;           /* x-shift in right path due to incoming segment (previous) */
  double dypr;           /* y-shift in right path due to incoming segment (previous) */
  double dxnr;           /* x-shift in right path due to outgoing segment (next) */
  double dynr;           /* y-shift in right path due to incoming segment (next) */
  double dxir;           /* x-shift in right path resulting from prologation of the linkend tangents (intersect) */
  double dyir;           /* y-shift in right path resulting from prologation of the linkend tangents (intersect) */
  double dist2prev;      /* distance to the previous point in path (used only for stroking) */
  double dist2next;      /* distance to the next point in path (used only for stroking) */
  enum 
  {
    PPOINT_SBW,
    PPOINT_MOVE,
    PPOINT_LINE,
    PPOINT_BEZIER_B,
    PPOINT_BEZIER_C,
    PPOINT_BEZIER_D,
    PPOINT_CLOSEPATH,
    PPOINT_ENDCHAR,
    PPOINT_SEAC,
    PPOINT_NONE
  } type;                /* type of path point */
  signed char   hinted;  /* is this point hinted? */
  unsigned char shape;   /* is the outline concave or convex or straight at this point? This flag
			    is only relevant for onCurve points in the context of stroking! */
} PPOINT;

#define CURVE_NONE            0x00
#define CURVE_STRAIGHT        0x01
#define CURVE_CONVEX          0x02
#define CURVE_CONCAVE         0x03

#ifdef DEBUG_OUTLINE_SURROUNDING
static char* pptypes[] = {
  "PPOINT_SBW",
  "PPOINT_MOVE",
  "PPOINT_LINE",
  "PPOINT_BEZIER_B",
  "PPOINT_BEZIER_C",
  "PPOINT_BEZIER_D",
  "PPOINT_CLOSEPATH",
  "PPOINT_ENDCHAR",
  "PPOINT_SEAC"
};
static char* ppshapes[] = {
  "SHAPE_OFFCURVE",
  "SHAPE_STRAIGHT",
  "SHAPE_CONVEX",
  "SHAPE_CONCAVE"
};
#endif


/* The PPOINT structs are organized in an array which is allocated
   in chunks of 256 entries. A new point is allocated by a call to
   nextPPoint and returns the index in the array of the newly
   allocated point. */
static PPOINT* ppoints       = NULL;
static long numppoints       = 0;
static long numppointchunks  = 0;
static int  closepathatfirst = 0;

static long nextPPoint( void) 
{
  ++numppoints;
  /* Check whether to reallocate */
  if ( numppoints > (numppointchunks * 256) ) {
    ++numppointchunks;
    ppoints = (PPOINT*) realloc( ppoints, (numppointchunks * 256) * sizeof( PPOINT));
  }
  /* return the current index */
  return numppoints-1;
}

static void createFillPath( void);
static void createStrokePath( double strokewidth, int subpathclosed);
static void createClosedStrokeSubPath( long startind, long stopind,
				       double strokewidth, int subpathclosed);
static long computeDistances( long startind, long stopind, int subpathclosed);
static void transformOnCurvePathPoint( double strokewidth,
				       long prevind, long currind, long lastind);
static void transformOffCurvePathPoint( double strokewidth, long currind);
/* values for flag:
   INTERSECT_PREVIOUS:     only take previous path segment into account.
   INTERSECT_NEXT:         only take next path segment into account. 
   INTERSECT_BOTH:         do a real intersection
*/
#define INTERSECT_PREVIOUS    -1
#define INTERSECT_NEXT         1
#define INTERSECT_BOTH         0
static void intersectRight( long index, double halfwidth, long flag);
/* values for orientation:
   PATH_LEFT:              we are constructing the left path.
   PATH_RIGHT:             we are constructing the right path.
*/
#define PATH_LEFT              1
#define PATH_RIGHT             0
/* values for position:
   PATH_START:             current point starts the current path (use next-values).
   PATH_END:               current point ends the current path (use prev-values).
*/
#define PATH_START             0
#define PATH_END               1
static void linkNode( long index, int position, int orientation);


static long handleNonSubPathSegments( long pindex);
static void handleCurrentSegment( long pindex);
static void adjustBezier( long pindex);

static double  size;
static double scxx, scyx, scxy, scyy;
static double  up;

#ifdef DUMPDEBUGPATH
static FILE*   psfile = NULL;
static void PSDumpProlog( FILE* fp);
static void PSDumpEpilog( FILE* fp);
#endif

/**********************************/
/* Type1 Constants and Structures */
/**********************************/
#define MAXSTACK 24        /* Adobe Type1 limit */
#define MAXCALLSTACK 10    /* Adobe Type1 limit */
#define MAXPSFAKESTACK 32  /* Max depth of fake PostScript stack (local) */
#define MAXSTRLEN 512      /* Max length of a Type 1 string (local) */
#define MAXLABEL 256       /* Maximum number of new hints */
#define MAXSTEMS 512       /* Maximum number of VSTEM and HSTEM hints */
#define EPS 0.001          /* Small number for comparisons */

/************************************/
/* Adobe Type 1 CharString commands */
/************************************/
#define HSTEM        1
#define VSTEM        3
#define VMOVETO      4
#define RLINETO      5
#define HLINETO      6
#define VLINETO      7
#define RRCURVETO    8
#define CLOSEPATH    9
#define CALLSUBR    10
#define RETURN      11
#define ESCAPE      12
#define HSBW        13
#define ENDCHAR     14
#define RMOVETO     21
#define HMOVETO     22
#define VHCURVETO   30
#define HVCURVETO   31

/* The following charstring code appears in some old Adobe font files
   in space and .notdef character and does not seems to do anything
   useful aside from taking two args from the stack. We allow this
   command and ignore it. The source code of ghostscript states that
   this command is obsolete *and* undocumented.
   This code may also appear in an Escape-sequence! */
#define UNKNOWN_15  15

/*******************************************/
/* Adobe Type 1 CharString Escape commands */
/*******************************************/
#define DOTSECTION       0
#define VSTEM3           1
#define HSTEM3           2
#define SEAC             6
#define SBW              7
#define DIV             12
#define CALLOTHERSUBR   16
#define POP             17
#define SETCURRENTPOINT 33
 

/* Note: We use routines from libm because in the original macro definitions,
   the evaluation order of tmpx is undefined by C-standard! */
#define USE_MATHLIB_ROUTINES

#ifdef USE_MATHLIB_ROUTINES

#define FABS(x) (fabs (x))
#define CEIL(x) ((LONG) ceil (x))
#define FLOOR(x) ((LONG) floor (x))

#else

/*****************/
/* Useful macros */
/*****************/
static DOUBLE tmpx;  /* Store macro argument in tmpx to avoid re-evaluation */
static LONG tmpi;    /* Store converted value in tmpi to avoid re-evaluation */
#define FABS(x) (((tmpx = (x)) < 0.0) ? -tmpx : tmpx)
#define CEIL(x) (((tmpi = (LONG) (tmpx = (x))) < tmpx) ? ++tmpi : tmpi)
#define FLOOR(x) (((tmpi = (LONG) (tmpx = (x))) > tmpx) ? --tmpi : tmpi)

#endif

#define ROUND(x) FLOOR((x) + 0.5)
#define ODD(x) (((int)(x)) & 01)

#define CC IfTrace1(TRUE, "Char \"%s\": ", currentchar)

/* To make some compiler happy we have to care about return types! */
#define Errori {errflag = TRUE; return 0;}    /* integer */
#define Errord {errflag = TRUE; return 0.0;}  /* double */
#define Errorv {errflag = TRUE; return;}      /* void */
 
#define Error0i(errmsg) { CC; IfTrace0(TRUE, errmsg); Errori;}
#define Error0d(errmsg) { CC; IfTrace0(TRUE, errmsg); Errord;}
#define Error0v(errmsg) { CC; IfTrace0(TRUE, errmsg); Errorv;}
 
#define Error1i(errmsg,arg) { CC; IfTrace1(TRUE, errmsg, arg); Errori;}
#define Error1d(errmsg,arg) { CC; IfTrace1(TRUE, errmsg, arg); Errord;}
#define Error1v(errmsg,arg) { CC; IfTrace1(TRUE, errmsg, arg); Errorv;}
 
/********************/
/* global variables */
/********************/
struct stem {              /* representation of a STEM hint */
  int vertical;                 /* TRUE if vertical, FALSE otherwise */
  DOUBLE x, dx;                 /* interval of vertical stem */
  DOUBLE y, dy;                 /* interval of horizontal stem */
  DOUBLE alx, aldx;             /* interval of grid-aligned vertical stem */
  DOUBLE aly, aldy;             /* interval of grid-aligned horizontal stem */
  double lbhintval;             /* adjustment value for left or bottom hint */
  double rthintval;             /* adjustment value for right ir top hint */
};
 
/******************************************************/
/* Subroutines and statics for the Type1Char routines */
/******************************************************/
 
static int strindex; /* index into PostScript string being interpreted */
static double currx, curry;           /* accumulated x and y values */
static double hcurrx, hcurry;         /* accumulated values with hinting */


struct callstackentry {
  psobj *currstrP;        /* current CharStringP */
  int currindex;          /* current strindex */
  unsigned short currkey; /* current decryption key */
  };
 
static DOUBLE Stack[MAXSTACK];
static int Top;
static struct callstackentry CallStack[MAXCALLSTACK];
static int CallTop;
static DOUBLE PSFakeStack[MAXPSFAKESTACK];
static int PSFakeTop;
 

extern struct XYspace *IDENTITY;
 
static DOUBLE escapementX, escapementY;
static DOUBLE sidebearingX, sidebearingY;
static DOUBLE accentoffsetX, accentoffsetY;
 
static struct segment *path;    /* path of basechar */
static struct segment *apath;   /* pass of accent char */
static int errflag;
 
/*************************************************/
/* Global variables to hold Type1Char parameters */
/*************************************************/
static char *Environment;
static char *currentchar;
static struct XYspace *CharSpace;
static psobj *CharStringP, *SubrsP, *OtherSubrsP;
static int *ModeP;
 
/************************/
/* Forward declarations */
/************************/
static DOUBLE Div();
static DOUBLE PSFakePop();
static int DoCommand();
static int Escape();
static int HStem();
static int VStem();
static int RLineTo();
static int RRCurveTo();
static int DoClosePath();
static int CallSubr();
static int Return();
static int EndChar();
static int RMoveTo();
static int DotSection();
static int Seac();
static int Sbw();
static int CallOtherSubr();
static int SetCurrentPoint();

/*****************************************/
/* statics for Flex procedures (FlxProc) */
/*****************************************/
static struct segment *FlxOldPath; /* save path before Flex feature */
 
/******************************************************/
/* statics for Font level hints (Blues) (see blues.h) */
/******************************************************/
static struct blues_struct *blues; /* the blues structure */
static struct alignmentzone alignmentzones[MAXALIGNMENTZONES];
int numalignmentzones;          /* total number of alignment zones */
 
/****************************************************************/
/* Subroutines for the Font level hints (Alignment zones, etc.) */
/****************************************************************/



/* Flags to control the rasterizer */
#define T1_IGNORE_FORCEBOLD           0x0001
#define T1_IGNORE_FAMILYALIGNMENT     0x0002
#define T1_IGNORE_HINTING             0x0004

#define T1_DEBUG_LINE                 0x0100
#define T1_DEBUG_REGION               0x0200
#define T1_DEBUG_PATH                 0x0400
#define T1_DEBUG_FONT                 0x0800
#define T1_DEBUG_HINT                 0x1000

int T1_Type1OperatorFlags; /* for manipulation from t1lib */


static void SetRasterFlags( void)
{

  if (T1_Type1OperatorFlags & T1_IGNORE_HINTING)
    ProcessHints=0;
  else
    ProcessHints=1;
  
  if ( T1_Type1OperatorFlags & T1_DEBUG_LINE)
    LineDebug=1;
  else
    LineDebug=0;
  if ( T1_Type1OperatorFlags & T1_DEBUG_REGION)
    RegionDebug=1;
  else
    RegionDebug=0;
  if ( T1_Type1OperatorFlags & T1_DEBUG_PATH)
    PathDebug=1;
  else
    PathDebug=0;
  if ( T1_Type1OperatorFlags & T1_DEBUG_FONT)
    FontDebug=1;
  else
    FontDebug=0;
  if ( T1_Type1OperatorFlags & T1_DEBUG_HINT)
    HintDebug=1;
  else
    HintDebug=0;
  return;
  
}


/******************************************/
/* Fill in the alignment zone structures. */
/******************************************/
static int ComputeAlignmentZones()
{
  int i;
  DOUBLE dummy, bluezonepixels, familyzonepixels;
  struct segment *p;
 
  numalignmentzones = 0;     /* initialize total # of zones */

  /* Remarks by RMz (Author of t1lib): The handling of substitution of
     the BlueValues by the FamilyBlues and correspondingly for the
     OtherBlues and FamilyOtherBlues is not clearly documented.
     These are the problems:
  
     1) Does the number of FamilyBlues entries need to be identical to
        that of BlueValues?

     2) Obviously, the order of the alignment zones in the BlueValues
        and the FamilyBlues need not be same (see TimesBold.pfa)

     3) Is it wise/recommended to make the substitution on a per
        alignment-zone level or global, i.e., if once then for all
	zones?

     4) The principle found below, checking the delta-height of an
        alignment-zone and making a decision based on this is incorrect.
	The decision has to be done according to absolute pixel values
	at which a feature would be rendered with the BlueValues and the
	FamilyBlues respectively.

     To conclude, it seems better to disable the Family-feature until
     these things are well-known/defined.
     */
  
  /* do the BlueValues zones */
  for (i = 0; i < blues->numBlueValues; i +=2, ++numalignmentzones) {
    /* the 0th & 1st numbers in BlueValues are for a bottom zone */
    /* the rest are topzones */
    if (i == 0)           /* bottom zone */
      alignmentzones[numalignmentzones].topzone = FALSE;
    else                  /* top zone */
      alignmentzones[numalignmentzones].topzone = TRUE;
    /* Check FamilyAlignment suppression */
    if ( (T1_Type1OperatorFlags & T1_IGNORE_FAMILYALIGNMENT)==0) {
      if (i < blues->numFamilyBlues) {    /* we must consider FamilyBlues */
	p = ILoc(CharSpace,0,blues->BlueValues[i] - blues->BlueValues[i+1]);
	QueryLoc(p, IDENTITY, &dummy, &bluezonepixels);
	Destroy(p);
	p = ILoc(CharSpace,0,blues->FamilyBlues[i] - blues->FamilyBlues[i+1]);
	QueryLoc(p, IDENTITY, &dummy, &familyzonepixels);
	Destroy(p);
	/* is the difference in size of the zones less than 1 pixel? */
	if (FABS(bluezonepixels - familyzonepixels) < 1.0) {
	  /* use the Family zones */
	  alignmentzones[numalignmentzones].bottomy =
	    blues->FamilyBlues[i];
	  alignmentzones[numalignmentzones].topy =
	    blues->FamilyBlues[i+1];
#ifdef DUMPDEBUGPATH
	  if ( psfile != NULL ) {
	    if ( alignmentzones[numalignmentzones].topzone == TRUE )
	      fprintf( psfile, "%f %f t1topzone\n", (blues->FamilyBlues[i])*up,
		       (blues->BlueValues[i+1])*up);
	    else
	      fprintf( psfile, "%f %f t1bottomzone\n", (blues->FamilyBlues[i])*up,
		       (blues->BlueValues[i+1])*up);
	  }
#endif
	  continue;
	}
      }
    }
    /* use this font's Blue zones */
    alignmentzones[numalignmentzones].bottomy = blues->BlueValues[i];
    alignmentzones[numalignmentzones].topy = blues->BlueValues[i+1];
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL ) {
      if ( alignmentzones[numalignmentzones].topzone == TRUE )
	fprintf( psfile, "%f %f t1topzone\n", (blues->BlueValues[i])*up,
		 (blues->BlueValues[i+1])*up);
      else
	fprintf( psfile, "%f %f t1bottomzone\n", (blues->BlueValues[i])*up,
		 (blues->BlueValues[i+1])*up);
    }
#endif
  }
 
  /* do the OtherBlues zones */
  for (i = 0; i < blues->numOtherBlues; i +=2, ++numalignmentzones) {
    /* all of the OtherBlues zones are bottom zones */
    alignmentzones[numalignmentzones].topzone = FALSE;
    /* Check FamilyAlignment suppression */
    if ( (T1_Type1OperatorFlags & T1_IGNORE_FAMILYALIGNMENT)==0) {
      if (i < blues->numFamilyOtherBlues) {/* consider FamilyOtherBlues  */
	p = ILoc(CharSpace,0,blues->OtherBlues[i] - blues->OtherBlues[i+1]);
	QueryLoc(p, IDENTITY, &dummy, &bluezonepixels);
	Destroy(p);
	p = ILoc(CharSpace,0,blues->FamilyOtherBlues[i] -
		 blues->FamilyOtherBlues[i+1]);
	QueryLoc(p, IDENTITY, &dummy, &familyzonepixels);
	Destroy(p);
	/* is the difference in size of the zones less than 1 pixel? */
	if (FABS(bluezonepixels - familyzonepixels) < 1.0) {
	  /* use the Family zones */
	  alignmentzones[numalignmentzones].bottomy =
	    blues->FamilyOtherBlues[i];
	  alignmentzones[numalignmentzones].topy =
	    blues->FamilyOtherBlues[i+1];
#ifdef DUMPDEBUGPATH
	  if ( psfile != NULL ) {
	    fprintf( psfile, "%f %f t1bottomzone\n", (blues->FamilyOtherBlues[i])*up,
		     (blues->FamilyOtherBlues[i+1])*up);
	  }
#endif
	  continue;
	}
      }
    }
    /* use this font's Blue zones (as opposed to the Family Blues */
    alignmentzones[numalignmentzones].bottomy = blues->OtherBlues[i];
    alignmentzones[numalignmentzones].topy = blues->OtherBlues[i+1];
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL ) {
      fprintf( psfile, "%f %f t1bottomzone\n", (blues->OtherBlues[i])*up,
	       (blues->OtherBlues[i+1])*up);
    }
#endif
  }
  return(0);
  
}
 
/**********************************************************************/
/* Subroutines and statics for handling of the VSTEM and HSTEM hints. */
/**********************************************************************/
int InDotSection;             /* DotSection flag */
struct stem stems[MAXSTEMS];  /* All STEM hints */
int numstems;                 /* Number of STEM hints */
int currstartstem;            /* The current starting stem. */
int oldvert, oldhor;          /* Remember hint in effect */
int oldhorhalf, oldverthalf;  /* Remember which half of the stem */
DOUBLE wsoffsetX, wsoffsetY;  /* White space offset - for VSTEM3,HSTEM3 */
int wsset;                    /* Flag for whether we've set wsoffsetX,Y */
 
static int InitStems()  /* Initialize the STEM hint data structures */
{
  InDotSection = FALSE;
  currstartstem = numstems = 0;
  oldvert = oldhor = -1;
  return(0);
  
}
 

/*******************************************************************/
/* Compute the dislocation that a stemhint should cause for points */
/* inside the stem.                                                */
/*******************************************************************/
static int ComputeStem(stemno)
int stemno;
{
  int verticalondevice, idealwidth;
  DOUBLE stemstart, stemwidth;
  struct segment *p;
  int i;
  DOUBLE stembottom, stemtop, flatposition;
  DOUBLE Xpixels, Ypixels;
  DOUBLE unitpixels, onepixel;
  int suppressovershoot, enforceovershoot;
  DOUBLE stemshift, flatpospixels, overshoot;
  DOUBLE widthdiff; /* Number of character space units to adjust width */
  DOUBLE lbhintvalue, rthintvalue;
  DOUBLE cxx, cyx, cxy, cyy; /* Transformation matrix */
  int rotated; /* TRUE if character is on the side, FALSE if upright */
 
  /************************************************/
  /* DETERMINE ORIENTATION OF CHARACTER ON DEVICE */
  /************************************************/
 
  QuerySpace(CharSpace, &cxx, &cyx, &cxy, &cyy); /* Transformation matrix */
 
  if (FABS(cxx) < 0.00001 || FABS(cyy) < 0.00001)
    rotated = TRUE; /* Char is on side (90 or 270 degrees), possibly oblique. */
  else if (FABS(cyx) < 0.00001 || FABS(cxy) < 0.00001)
    rotated = FALSE; /* Char is upright (0 or 180 degrees), possibly oblique. */
  else {
    stems[stemno].lbhintval = 0.0; /* Char is at non-axial angle, ignore hints. */
    stems[stemno].rthintval = 0.0;
    ProcessHints = 0;
    return(0);
  }
 
  /* Determine orientation of stem */
 
  if (stems[stemno].vertical) {
    verticalondevice = !rotated;
    stemstart = stems[stemno].x;
    stemwidth = stems[stemno].dx;
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1vstem\n", stemstart*up, stemwidth*up);
#endif
  } else {
    verticalondevice = rotated;
    stemstart = stems[stemno].y;
    stemwidth = stems[stemno].dy;
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1hstem\n", stemstart*up, stemwidth*up);
#endif
  }
 
  /* Determine how many pixels (non-negative) correspond to 1 character space
     unit (unitpixels), and how many character space units (non-negative)
     correspond to one pixel (onepixel). */
 
  if (stems[stemno].vertical)
    p = ILoc(CharSpace, 1, 0);
  else
    p = ILoc(CharSpace, 0, 1);
  QueryLoc(p, IDENTITY, &Xpixels, &Ypixels);
  Destroy(p);
  if (verticalondevice)
    unitpixels = FABS(Xpixels);
  else
    unitpixels = FABS(Ypixels);
 
  onepixel = 1.0 / unitpixels;

  /**********************/
  /* ADJUST STEM WIDTHS */
  /**********************/
 
  widthdiff = 0.0;
 
  /* Find standard stem with smallest width difference from this stem */
  if (stems[stemno].vertical) { /* vertical stem */
    if (blues->StdVW != 0)      /* there is an entry for StdVW */
      widthdiff = blues->StdVW - stemwidth;
    for (i = 0; i < blues->numStemSnapV; ++i) { /* now look at StemSnapV */
      if (FABS(blues->StemSnapV[i] - stemwidth) < FABS(widthdiff))
        /* this standard width is the best match so far for this stem */
        widthdiff = blues->StemSnapV[i] - stemwidth;
    }
  } else {                      /* horizontal stem */
    if (blues->StdHW != 0)      /* there is an entry for StdHW */
      widthdiff = blues->StdHW - stemwidth;
    for (i = 0; i < blues->numStemSnapH; ++i) { /* now look at StemSnapH */
      if (FABS(blues->StemSnapH[i] - stemwidth) < FABS(widthdiff))
        /* this standard width is the best match so far for this stem */
        widthdiff = blues->StemSnapH[i] - stemwidth;
    }
  }

  /* Only expand or contract stems if they differ by less than 1 pixel from
     the closest standard width, otherwise make the width difference = 0. */
  if (FABS(widthdiff) > onepixel)
    widthdiff = 0.0;
 
  /* Expand or contract stem to the nearest integral number of pixels. */
  idealwidth = ROUND((stemwidth + widthdiff) * unitpixels);
  /* Ensure that all stems are at least one pixel wide. */
  if (idealwidth == 0)
    idealwidth = 1;

  /* Apply ForceBold to vertical stems. */
  if (blues->ForceBold && stems[stemno].vertical &&
      ((T1_Type1OperatorFlags & T1_IGNORE_FORCEBOLD)==0))
    /* Force this vertical stem to be at least DEFAULTBOLDSTEMWIDTH wide. */
    if (idealwidth < DEFAULTBOLDSTEMWIDTH)
      idealwidth = DEFAULTBOLDSTEMWIDTH;
  /* Now compute the number of character space units necessary */
  widthdiff = idealwidth * onepixel - stemwidth;

  /*********************************************************************/
  /* ALIGNMENT ZONES AND OVERSHOOT SUPPRESSION - HORIZONTAL STEMS ONLY */
  /*********************************************************************/
 
  stemshift = 0.0;
 
  if ( !stems[stemno].vertical ) {
 
    /* Get bottom and top boundaries of the stem. */
    stembottom = stemstart;
    stemtop = stemstart + stemwidth;
 
    /* Find out if this stem intersects an alignment zone (the BlueFuzz  */
    /* entry in the Private dictionary specifies the number of character */
    /* units to extend (in both directions) the effect of an alignment   */
    /* zone on a horizontal stem.  The default value of BlueFuzz is 1.   */
    for (i = 0; i < numalignmentzones; ++i) {
      if (alignmentzones[i].topzone) {
        if (stemtop >= alignmentzones[i].bottomy &&
            stemtop <= alignmentzones[i].topy + blues->BlueFuzz) {
          break; /* We found a top-zone */
        }
      } else {
        if (stembottom <= alignmentzones[i].topy &&
            stembottom >= alignmentzones[i].bottomy - blues->BlueFuzz) {
          break; /* We found a bottom-zone */
        }
      }
    }
 
    if (i < numalignmentzones) { /* We found an intersecting zone (number i). */
      suppressovershoot = FALSE;
      enforceovershoot = FALSE;
 
      /* When 1 character space unit is rendered smaller than BlueScale
         device units (pixels), we must SUPPRESS overshoots.  Otherwise,
         if the top (or bottom) of this stem is more than BlueShift character
         space units away from the flat position, we must ENFORCE overshoot. */
      
      if (unitpixels < blues->BlueScale){
        suppressovershoot = TRUE;
      }
      else{
        if (alignmentzones[i].topzone){
          if (stemtop >= alignmentzones[i].bottomy + blues->BlueShift){
            enforceovershoot = TRUE;
	  }
        else
          if (stembottom <= alignmentzones[i].topy - blues->BlueShift){
            enforceovershoot = TRUE;
	  }
	}
      }
      
      
      /*************************************************/
      /* ALIGN THE FLAT POSITION OF THE ALIGNMENT ZONE */
      /*************************************************/
 
      /* Compute the position of the alignment zone's flat position in
         device space and the amount of shift needed to align it on a
         pixel boundary. Move all stems this amount. */
 
      if (alignmentzones[i].topzone)
        flatposition = alignmentzones[i].bottomy;
      else
        flatposition = alignmentzones[i].topy;
 
      /* Find the flat position in pixels */
      flatpospixels = flatposition * unitpixels;
 
      /* Find the stem shift necessary to align the flat
         position on a pixel boundary, and use this shift for all stems */
      stemshift = (ROUND(flatpospixels) - flatpospixels) * onepixel;
 
      /************************************************/
      /* HANDLE OVERSHOOT ENFORCEMENT AND SUPPRESSION */
      /************************************************/
 
      /* Compute overshoot amount (non-negative) */
      if (alignmentzones[i].topzone)
        overshoot = stemtop - flatposition;
      else
        overshoot = flatposition - stembottom;
 
      if (overshoot > 0.0) {
        /* ENFORCE overshoot by shifting the entire stem (if necessary) so that
           it falls at least one pixel beyond the flat position. */
 
        if (enforceovershoot){
          if (overshoot < onepixel){
            if (alignmentzones[i].topzone)
              stemshift += onepixel - overshoot;
            else
              stemshift -= onepixel - overshoot;
	  }
	}
	
 
        /* SUPPRESS overshoot by aligning the stem to the alignment zone's
           flat position. */
 
        if (suppressovershoot){
          if (alignmentzones[i].topzone)
            stemshift -= overshoot;
          else
            stemshift += overshoot;
	}
      }
 
      /************************************************************/
      /* COMPUTE HINT VALUES FOR EACH SIDE OF THE HORIZONTAL STEM */
      /************************************************************/
 
      /* If the stem was aligned by a topzone, we expand or contract the stem
         only at the bottom - since the stem top was aligned by the zone.
         If the stem was aligned by a bottomzone, we expand or contract the stem
         only at the top - since the stem bottom was aligned by the zone. */
      if (alignmentzones[i].topzone) {
        lbhintvalue = stemshift - widthdiff; /* bottom */
        rthintvalue = stemshift;             /* top    */
      } else {
        lbhintvalue = stemshift;             /* bottom */
        rthintvalue = stemshift + widthdiff; /* top    */
      }

      stems[stemno].lbhintval = lbhintvalue;
      stems[stemno].rthintval = rthintvalue;

      /* store grid-aligned stems values */
      stems[stemno].aly       = stemstart + lbhintvalue;
      stems[stemno].aldy      = stemwidth + widthdiff;
      
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL )
	fprintf( psfile, "%f %f t1alignedhstem\n", (stems[stemno].aly)*up,
		 (stems[stemno].aldy)*up);
#endif
      return(0);
 
    } /* endif (i < numalignmentzones) */
 
    /* We didn't find any alignment zones intersecting this stem, so
       proceed with normal stem alignment below. */
 
  } /* endif (!stems[stemno].vertical) */
 
  /* Align stem with pixel boundaries on device */
  stemstart = stemstart - widthdiff / 2;
  stemshift = ROUND(stemstart * unitpixels) * onepixel - stemstart;
 
  /* Adjust the boundaries of the stem */
  lbhintvalue = stemshift - widthdiff / 2; /* left  or bottom */
  rthintvalue = stemshift + widthdiff / 2; /* right or top    */
 
  if (stems[stemno].vertical) {
    stems[stemno].lbhintval = lbhintvalue;
    stems[stemno].rthintval = rthintvalue;

    /* store grid-aligned stem values */
    stems[stemno].alx       = stemstart + stemshift;
    stems[stemno].aldx      = stemwidth + widthdiff;
      
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1alignedvstem\n", (stems[stemno].alx)*up,
	       (stems[stemno].aldx)*up);
#endif
  } else {
    stems[stemno].lbhintval = lbhintvalue;
    stems[stemno].rthintval = rthintvalue;

    /* store grid-aligned stem values */
    stems[stemno].aly       = stemstart + stemshift;
    stems[stemno].aldy      = stemwidth + widthdiff;
      
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1alignedhstem\n", (stems[stemno].aly)*up,
    	       (stems[stemno].aldy)*up);
#endif
  }
  return(0);
  
}
 

#define LEFT   1
#define RIGHT  2
#define BOTTOM 3
#define TOP    4


/***********************************************************************/
/* Find the vertical and horizontal stems that the current point       */
/* (x, y) may be involved in.  At most one horizontal and one vertical */
/* stem can apply to a single point, since there are no overlaps       */
/* allowed.                                                            */
/*   The point list updated by this function.                          */
/* Hints are ignored inside a DotSection.                              */
/***********************************************************************/
static void FindStems( double x, double y,
		       double dx, double dy,
		       double nextdx, double nextdy)
{
  int i;
  int newvert, newhor;
  int newhorhalf, newverthalf;

  /* The following values will be used to decide whether a curve
     crosses or touches a stem in an aligned manner or not */
  double dtana     = 0.0;   /* tangent of pre-delta against horizontal line */ 
  double dtanb     = 0.0;   /* tangent of pre-delta against vertical line */ 
  double nextdtana = 0.0;   /* tangent of post-delta against horizontal line */ 
  double nextdtanb = 0.0;   /* tangent of post-delta against vertical line */ 
  
 
  /* setup default hinted position */
  ppoints[numppoints-1].ax     = ppoints[numppoints-1].x;
  ppoints[numppoints-1].ay     = ppoints[numppoints-1].y;
  if ( ppoints[numppoints-1].hinted == -1 )
    /* point is not to be hinted! */
    return;
  else
    ppoints[numppoints-1].hinted = 0;

  if ( InDotSection )
    return;

  if ( ProcessHints == 0 ) {
    return;
  }

  /* setup (absolute) tangent values and define limits that indicate nearly
     horizontal or nearly vertical alignment */
#define NEARLYVERTICAL     0.2   /* This corresponds to about 11.3 degress deviation */
#define NEARLYHORIZONTAL   0.2   /* from the ideal direction.                        */
  if ( dy != 0 ) {
    dtana = dx/dy;
    if ( dtanb < 0.0 )
      dtana = -dtana;
  }
  else
    dtana = NEARLYHORIZONTAL;
  if ( dx != 0 ) {
    dtanb = dy/dx;
    if ( dtanb < 0.0 )
      dtanb = -dtanb;
  }
  else
    dtanb = NEARLYVERTICAL;
  if ( nextdy != 0 ) {
    nextdtana = nextdx/nextdy;
    if ( nextdtana < 0.0 )
      nextdtana = -nextdtana;
  }
  else
    nextdtana = NEARLYHORIZONTAL;
  if ( nextdx != 0 ) {
    nextdtanb = nextdy/nextdx;
    if ( nextdtanb < 0.0 )
      nextdtanb = -nextdtanb;
  }
  else
    nextdtanb = NEARLYVERTICAL;
  
  newvert = newhor = -1;
  newhorhalf = newverthalf = -1;

  for (i = currstartstem; i < numstems; i++) {
    if (stems[i].vertical) { /* VSTEM hint */
      /* OK, stem is crossed in an aligned way */
      if ( (dtana <= NEARLYVERTICAL) || (nextdtana <= NEARLYVERTICAL)) {
	if ((x >= stems[i].x ) &&
	    (x <= stems[i].x+stems[i].dx )) {
	  newvert = i;
	  if (x < stems[i].x+stems[i].dx / 2)
	    newverthalf = LEFT;
	  else
	    newverthalf = RIGHT;
	}
      }
    }
    else {                 /* HSTEM hint */
      if ( (dtanb <= NEARLYHORIZONTAL) || (nextdtanb <= NEARLYHORIZONTAL)) {
	/* OK, stem is crossed in an aligned way */
	if ((y >= stems[i].y ) &&
	    (y <= stems[i].y+stems[i].dy )) {
	  newhor = i;
	  if (y < stems[i].y+stems[i].dy / 2)
	    newhorhalf = BOTTOM;
	  else
	    newhorhalf = TOP;
	}
      }
    }
  }

  if ( newvert != -1 ) {
    /* mark the latest point in the point list to be v-hinted! */
    if ( newverthalf == LEFT ) {
      /* left hint */
      ppoints[numppoints-1].ax  += stems[newvert].lbhintval;
    }
    else {
       /* right hint */
      ppoints[numppoints-1].ax  += stems[newvert].rthintval;
    }
    ppoints[numppoints-1].hinted |= 0x01;
  }
  if ( newhor != -1 ) {
    /* mark the latest point in the point list to be h-hinted! */
    if ( newhorhalf == BOTTOM ) {
      /* bottom hint */
      ppoints[numppoints-1].ay  += stems[newhor].lbhintval;
    }
    else {
       /* top hint */
      ppoints[numppoints-1].ay  += stems[newhor].rthintval;
    }
    ppoints[numppoints-1].hinted |= 0x02;
  }
  
  return;
  
}


/* Type 1 internal functions */
static int ClearStack()
{
  Top = -1;
  return(0);
  
}
 
static int Push(Num)
        DOUBLE Num;
{
  if (++Top < MAXSTACK) Stack[Top] = Num;
  else Error0i("Push: Stack full\n");
  return(0);
  
}
 
static int ClearCallStack()
{
  CallTop = -1;
  return(0);
}
 
static int PushCall(CurrStrP, CurrIndex, CurrKey)
  psobj *CurrStrP;
  int CurrIndex;
  unsigned short CurrKey;
{
  if (++CallTop < MAXCALLSTACK) {
    CallStack[CallTop].currstrP = CurrStrP;   /* save CharString pointer */
    CallStack[CallTop].currindex = CurrIndex; /* save CharString index */
    CallStack[CallTop].currkey = CurrKey;     /* save decryption key */
  }
  else Error0i("PushCall: Stack full\n");
  return(0);
}
 
static int PopCall(CurrStrPP, CurrIndexP, CurrKeyP)
  psobj **CurrStrPP;
  int *CurrIndexP;
  unsigned short *CurrKeyP;
{
  if (CallTop >= 0) {
    *CurrStrPP = CallStack[CallTop].currstrP; /* restore CharString pointer */
    *CurrIndexP = CallStack[CallTop].currindex; /* restore CharString index */
    *CurrKeyP = CallStack[CallTop--].currkey;   /* restore decryption key */
  }
  else Error0i("PopCall: Stack empty\n");
  return(0);
}

 
static int ClearPSFakeStack()
{
  PSFakeTop = -1;
  return(0);
}
 
/* PSFakePush: Pushes a number onto the fake PostScript stack */
static int PSFakePush(Num)
  DOUBLE Num;
{
  if (++PSFakeTop < MAXPSFAKESTACK) PSFakeStack[PSFakeTop] = Num;
  else Error0i("PSFakePush: Stack full\n");
  return(0);
}
 
/* PSFakePop: Removes a number from the top of the fake PostScript stack */
static DOUBLE PSFakePop ()
{
  if (PSFakeTop >= 0) return(PSFakeStack[PSFakeTop--]);
  
  else Error0d("PSFakePop : Stack empty\n");

  /*NOTREACHED*/
}
 
/***********************************************************************/
/* Center a stem on the pixel grid -- used by HStem3 and VStem3        */
/***********************************************************************/
static struct segment *CenterStem(edge1, edge2)
    DOUBLE edge1;
    DOUBLE edge2;
{
  int idealwidth, verticalondevice;
  DOUBLE leftx, lefty, rightx, righty, center, width;
  DOUBLE widthx, widthy;
  DOUBLE shift, shiftx, shifty;
  DOUBLE Xpixels, Ypixels;
  struct segment *p;
 
  p = Loc(CharSpace, edge1, 0.0);
  QueryLoc(p, IDENTITY, &leftx, &lefty);
 
  p = Join(p, Loc(CharSpace, edge2, 0.0));
  QueryLoc(p, IDENTITY, &rightx, &righty);
  Destroy(p);
 
  widthx = FABS(rightx - leftx);
  widthy = FABS(righty - lefty);
 
  if (widthy <= EPS) { /* verticalondevice hint */
    verticalondevice = TRUE;
    center = (rightx + leftx) / 2.0;
    width = widthx;
  }
  else if (widthx <= EPS) { /* horizontal hint */
    verticalondevice = FALSE;
    center = (righty + lefty) / 2.0;
    width = widthy;
  }
  else { /* neither horizontal nor verticalondevice and not oblique */
    return (NULL);
  }
 
  idealwidth = ROUND(width);
  if (idealwidth == 0) idealwidth = 1;
  if (ODD(idealwidth)) {       /* is ideal width odd? */
    /* center stem over pixel */
    shift = FLOOR(center) + 0.5 - center;
  }
  else {
    /* align stem on pixel boundary */
    shift = ROUND(center) - center;
  }
 
  if (verticalondevice) {
    shiftx = shift;
    shifty = 0.0;
  } else {
    shifty = shift;
    shiftx = 0.0;
  }
 
  p = Loc(IDENTITY, shiftx, shifty);
  QueryLoc(p, CharSpace, &Xpixels, &Ypixels);
  wsoffsetX = Xpixels; wsoffsetY = Ypixels;
  currx += wsoffsetX; curry += wsoffsetY;
 
  return (p);
}
 
/*-----------------------------------------------------------------------
  Decrypt - From Adobe Type 1 book page 63, with some modifications
-----------------------------------------------------------------------*/
#define KEY 4330 /* Initial key (seed) for CharStrings decryption */
#define C1 52845 /* Multiplier for pseudo-random number generator */
#define C2 22719 /* Constant for pseudo-random number generator */
 
static unsigned short r; /* Pseudo-random sequence of keys */
 
static unsigned char Decrypt(cipher)
unsigned char cipher;
{
  unsigned char plain;
 
  plain = cipher ^ (r >> 8);
  r = (cipher + r) * C1 + C2;
  return plain;
}
 
/* Get the next byte from the codestring being interpreted */
static int DoRead(CodeP)
  int *CodeP;
{
  if (strindex >= CharStringP->len) return(FALSE); /* end of string */
  /* We handle the non-documented Adobe convention to use lenIV=-1 to
     suppress charstring encryption. */
  if (blues->lenIV==-1) {
    *CodeP = (unsigned char) CharStringP->data.stringP[strindex++];
  }
  else { 
    *CodeP = Decrypt((unsigned char) CharStringP->data.stringP[strindex++]);
  }
  
  return(TRUE);
}
 
/* Strip blues->lenIV bytes from CharString and update encryption key */
/* (the lenIV entry in the Private dictionary specifies the number of */
/* random bytes at the beginning of each CharString; default is 4)    */
static void StartDecrypt()
{
  int Code;
 
  r = KEY; /* Initial key (seed) for CharStrings decryption */
  for (strindex = 0; strindex < blues->lenIV;){
    if (!DoRead(&Code)) /* Read a byte and update decryption key */
      Error0v("StartDecrypt: Premature end of CharString\n");
  }
  
}

#undef DecodeDebug

static int Decode(Code)
  int Code;
{
  int Code1, Code2, Code3, Code4;
 
  if (Code <= 31){                           /* Code is [0,31]    */
#ifdef DecodeDebug
    fprintf(stderr, "Decode: Code=%d -> Command\n", Code);
#endif
    DoCommand(Code);
  }
  else if (Code <= 246){                     /* Code is [32,246]  */
#ifdef DecodeDebug
    fprintf(stderr, "Decode: Code=%d -> number=%f\n",
	    Code, (DOUBLE)(Code-139));
#endif
    Push((DOUBLE)(Code - 139));
  }
  else if (Code <= 250) {                   /* Code is [247,250] */
    if (!DoRead(&Code2)) goto ended;
#ifdef DecodeDebug
    fprintf(stderr, "Decode: Code=%d next Code=%d -> number=%f\n",
	    Code, Code2, (DOUBLE)(((Code - 247) << 8) + Code2 + 108));
#endif
    Push((DOUBLE)(((Code - 247) << 8) + Code2 + 108));
  }
  else if (Code <= 254) {                   /* Code is [251,254] */
    if (!DoRead(&Code2)) goto ended;
#ifdef DecodeDebug
    fprintf(stderr, "Decode: Code=%d, next Code=%d -> number=%f\n",
	    Code, Code2, (DOUBLE)( -((Code - 251) << 8) - Code2 - 108));
#endif
    Push((DOUBLE)( -((Code - 251) << 8) - Code2 - 108));
  }
  else {                                    /* Code is 255 */
    if (!DoRead(&Code1)) goto ended;
    if (!DoRead(&Code2)) goto ended;
    if (!DoRead(&Code3)) goto ended;
    if (!DoRead(&Code4)) goto ended;
#ifdef DecodeDebug
    fprintf(stderr, "Decode: Code=255, Code1=%d, Code2=%d, Code3=%d, Code4=%d -> number=%f\n",
	    Code1, Code2, Code3, Code4,
	    (DOUBLE)((((((Code1<<8) + Code2)<<8) + Code3)<<8) + Code4));
#endif
    Push((DOUBLE)((((((Code1<<8) + Code2)<<8) + Code3)<<8) + Code4));
  }
  return(0);
 
ended: Error0i("Decode: Premature end of Type 1 CharString");
}

#undef DoCommandDebug 

/* Interpret a command code */
static int DoCommand(Code)
  int Code;
{
  switch(Code) {
    case HSTEM: /* |- y dy HSTEM |- */
#ifdef DoCommandDebug
      printf("DoCommand: HStem\n");
#endif
      /* Vertical range of a horizontal stem zone */
      if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      HStem(Stack[0], Stack[1]);
      ClearStack();
      break;
    case VSTEM: /* |- x dx VSTEM |- */
#ifdef DoCommandDebug
      printf("DoCommand: VStem\n");
#endif
      /* Horizontal range of a vertical stem zone */
      if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      VStem(Stack[0], Stack[1]);
      ClearStack();
      break;
    case VMOVETO: /* |- dy VMOVETO |- */
#ifdef DoCommandDebug
      printf("DoCommand: VMoveto\n");
#endif
      /* Vertical MOVETO, equivalent to 0 dy RMOVETO */
      if (Top < 0) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RMoveTo(0.0, Stack[0]);
      ClearStack();
      break;
    case RLINETO: /* |- dx dy RLINETO |- */
#ifdef DoCommandDebug
      printf("DoCommand: RLineto\n");
#endif
      /* Like RLINETO in PostScript */
      if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RLineTo(Stack[0], Stack[1]);
      ClearStack();
      break;
    case HLINETO: /* |- dx HLINETO |- */
#ifdef DoCommandDebug
      printf("DoCommand: HLineto\n");
#endif
      /* Horizontal LINETO, equivalent to dx 0 RLINETO */
      if (Top < 0) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RLineTo(Stack[0], 0.0);
      ClearStack();
      break;
    case VLINETO: /* |- dy VLINETO |- */
#ifdef DoCommandDebug
      printf("DoCommand: VLineto\n");
#endif
      /* Vertical LINETO, equivalent to 0 dy RLINETO */
      if (Top < 0) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RLineTo(0.0, Stack[0]);
      ClearStack();
      break;
    case RRCURVETO:
#ifdef DoCommandDebug
      printf("DoCommand: RRCurveto\n");
#endif
      /* |- dx1 dy1 dx2 dy2 dx3 dy3 RRCURVETO |- */
      /* Relative RCURVETO, equivalent to dx1 dy1 */
      /* (dx1+dx2) (dy1+dy2) (dx1+dx2+dx3) */
      /* (dy1+dy2+dy3) RCURVETO in PostScript */
      if (Top < 5) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RRCurveTo(Stack[0], Stack[1], Stack[2], Stack[3],
        Stack[4], Stack[5]);
      ClearStack();
      break;
    case CLOSEPATH: /* - CLOSEPATH |- */
#ifdef DoCommandDebug
      printf("DoCommand: ClosePath\n");
#endif
      /* Closes a subpath without repositioning the */
      /* current point */
      DoClosePath();
      ClearStack();
      break;
    case CALLSUBR: /* subr# CALLSUBR - */
#ifdef DoCommandDebug
      printf("DoCommand: CallSubr\n");
#endif
      /* Calls a CharString subroutine with index */
      /* subr# from the Subrs array */
      if (Top < 0) Error1i("DoCommand: Stack low\n (Code=%d)", Code);
      CallSubr((int)Stack[Top--]);
      break;
    case RETURN: /* - RETURN - */
#ifdef DoCommandDebug
      printf("DoCommand: Return\n");
#endif
      /* Returns from a Subrs array CharString */
      /* subroutine called with CALLSUBR */
      Return();
      break;
    case ESCAPE: /* ESCAPE to two-byte command code */
#ifdef DoCommandDebug
      printf("DoCommand: Escape to 2 Byte Code (Code=%d)\n", Code);
#endif
      if (!DoRead(&Code)) Error0i("DoCommand: ESCAPE is last byte\n");
      Escape(Code);
      break;
    case HSBW: /* |- sbx wx HSBW |- */
#ifdef DoCommandDebug
      printf("DoCommand: HSBW\n");
#endif
      /* Set the left sidebearing point to (sbx,0), */
      /* set the character width vector to (wx,0). */
      /* Equivalent to sbx 0 wx 0 SBW.  Space */
      /* character should have sbx = 0 */
      if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      Sbw(Stack[0], 0.0, Stack[1], 0.0);
      ClearStack();
      break;
    case ENDCHAR: /* - ENDCHAR |- */
#ifdef DoCommandDebug
      printf("DoCommand: EndChar\n");
#endif
      /* Finishes a CharString outline */
      EndChar();
      ClearStack();
      break;
    case RMOVETO: /* |- dx dy RMOVETO |- */
#ifdef DoCommandDebug
      printf("DoCommand: RMoveto\n");
#endif
      /* Behaves like RMOVETO in PostScript */
      if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RMoveTo(Stack[0], Stack[1]);
      ClearStack();
      break;
    case HMOVETO: /* |- dx HMOVETO |- */
#ifdef DoCommandDebug
      printf("DoCommand: HMovetoUnassigned\n");
#endif
      /* Horizontal MOVETO. Equivalent to dx 0 RMOVETO */
      if (Top < 0) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RMoveTo(Stack[0], 0.0);
      ClearStack();
      break;
    case VHCURVETO: /* |- dy1 dx2 dy2 dx3 VHCURVETO |- */
#ifdef DoCommandDebug
      printf("DoCommand: VHCurveto\n");
#endif
      /* Vertical-Horizontal CURVETO, equivalent to */
      /* 0 dy1 dx2 dy2 dx3 0 RRCURVETO */
      if (Top < 3) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RRCurveTo(0.0, Stack[0], Stack[1], Stack[2],
              Stack[3], 0.0);
      ClearStack();
      break;
    case HVCURVETO: /* |- dx1 dx2 dy2 dy3 HVCURVETO |- */
#ifdef DoCommandDebug
      printf("DoCommand: HCurveto\n");
#endif
      /* Horizontal-Vertical CURVETO, equivalent to */
      /* dx1 0 dx2 dy2 0 dy3 RRCURVETO */
      if (Top < 3) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      RRCurveTo(Stack[0], 0.0, Stack[1], Stack[2], 0.0, Stack[3]);
      ClearStack();
      break;
  case UNKNOWN_15:
    if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
    ClearStack();
    break;
    default: /* Unassigned command code */
#ifdef DoCommandDebug
      printf("DoCommand: Unassigned\n");
#endif
      ClearStack();
      Error1i("DoCommand: Unassigned code %d\n", Code);
  }
  return(0);
  
}
 
static int Escape(Code)
  int Code;
{
  int i, Num;
  struct segment *p;
 
  switch(Code) {
    case DOTSECTION: /* - DOTSECTION |- */
      /* Brackets an outline section for the dots in */
      /* letters such as "i", "j", and "!". */
      DotSection();
      ClearStack();
      break;
    case VSTEM3: /* |- x0 dx0 x1 dx1 x2 dx2 VSTEM3 |- */
      /* Declares the horizontal ranges of three */
      /* vertical stem zones between x0 and x0+dx0, */
      /* x1 and x1+dx1, and x2 and x2+dx2. */
      if (Top < 5) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      if (!wsset && ProcessHints) {
        /* Shift the whole character so that the middle stem is centered. */
        p = CenterStem(Stack[2] + sidebearingX, Stack[3]);
        path = Join(path, p);
        wsset = 1;
      }
 
      VStem(Stack[0], Stack[1]);
      VStem(Stack[2], Stack[3]);
      VStem(Stack[4], Stack[5]);
      ClearStack();
      break;
    case HSTEM3: /* |- y0 dy0 y1 dy1 y2 dy2 HSTEM3 |- */
      /* Declares the vertical ranges of three hori- */
      /* zontal stem zones between y0 and y0+dy0, */
      /* y1 and y1+dy1, and y2 and y2+dy2. */
      if (Top < 5) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      HStem(Stack[0], Stack[1]);
      HStem(Stack[2], Stack[3]);
      HStem(Stack[4], Stack[5]);
      ClearStack();
      break;
    case SEAC: /* |- asb adx ady bchar achar SEAC |- */
      /* Standard Encoding Accented Character. */
      if (Top < 4) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      Seac(Stack[0], Stack[1], Stack[2],
        (unsigned char) Stack[3],
        (unsigned char) Stack[4]);
      ClearStack();
      break;
    case SBW: /* |- sbx sby wx wy SBW |- */
      /* Set the left sidebearing point to (sbx,sby), */
      /* set the character width vector to (wx,wy). */
      if (Top < 3) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      Sbw(Stack[0], Stack[1], Stack[2], Stack[3]);
      ClearStack();
      break;
    case DIV: /* num1 num2 DIV quotient */
      /* Behaves like DIV in the PostScript language */
      if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      Stack[Top-1] = Div(Stack[Top-1], Stack[Top]);
      Top--;
      break;
    case CALLOTHERSUBR:
      /* arg1 ... argn n othersubr# CALLOTHERSUBR - */
      /* Make calls on the PostScript interpreter */
      if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      Num = Stack[Top-1];
      if (Top < Num+1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
      for (i = 0; i < Num; i++) PSFakePush(Stack[Top - i - 2]);
      Top -= Num + 2;
      CallOtherSubr((int)Stack[Top + Num + 2]);
      break;
    case POP: /* - POP number */
      /* Removes a number from the top of the */
      /* PostScript interpreter stack and pushes it */
      /* onto the Type 1 BuildChar operand stack */
      Push(PSFakePop());
      break;
  case SETCURRENTPOINT: /* |- x y SETCURRENTPOINT |- */
    /* Sets the current point to (x,y) in absolute */
    /* character space coordinates without per- */
    /* forming a CharString MOVETO command */
    if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
    SetCurrentPoint(Stack[0], Stack[1]);
    ClearStack();
    break;
  case UNKNOWN_15:
    if (Top < 1) Error1i("DoCommand: Stack low (Code=%d)\n", Code);
    ClearStack();
    break;
  default: /* Unassigned escape code command */
    ClearStack();
    Error1i("Escape: Unassigned code %d\n", Code);
  }
  return(0);

}
 
/* |- y dy HSTEM |- */
/* Declares the vertical range of a horizontal stem zone */
/* between coordinates y and y + dy */
/* y is relative to the left sidebearing point */
static int HStem(y, dy)
  DOUBLE y, dy;
{
  IfTrace2((FontDebug), "Hstem %f %f\n", y, dy);
  if (ProcessHints) {
    if (numstems >= MAXSTEMS) Error0i("HStem: Too many hints\n");
    if (dy < 0.0) {y += dy; dy = -dy;}
    stems[numstems].vertical = FALSE;
    stems[numstems].x = 0.0;
    stems[numstems].y = sidebearingY + y + wsoffsetY;
    stems[numstems].dx = 0.0;
    stems[numstems].dy = dy;
    ComputeStem(numstems);
    numstems++;
  }
  return(0);
}
 
/* |- x dx VSTEM |- */
/* Declares the horizontal range of a vertical stem zone */
/* between coordinates x and x + dx */
/* x is relative to the left sidebearing point */
static int VStem(x, dx)
  DOUBLE x, dx;
{
  IfTrace2((FontDebug), "Vstem %f %f\n", x, dx);
  if (ProcessHints) {
    if (numstems >= MAXSTEMS) Error0i("VStem: Too many hints\n");
    if (dx < 0.0) {x += dx; dx = -dx;}
    stems[numstems].vertical = TRUE;
    stems[numstems].x = sidebearingX + x + wsoffsetX;
    stems[numstems].y = 0.0;
    stems[numstems].dx = dx;
    stems[numstems].dy = 0.0;
    ComputeStem(numstems);
    numstems++;
  }
  return(0);
}
 
/* |- dx dy RLINETO |- */
/* Behaves like RLINETO in PostScript */
static int RLineTo(dx, dy)
  DOUBLE dx, dy;
{
  long pindex = 0;
  
  /* compute hinting for previous segment! */
  FindStems( currx, curry, currx-ppoints[numppoints-2].x, curry-ppoints[numppoints-2].y, dx, dy);

  /* Allocate a new path point and pre-setup data */
  pindex = nextPPoint();
  ppoints[pindex].x       = currx + dx;
  ppoints[pindex].y       = curry + dy;
  ppoints[pindex].ax      = ppoints[pindex].x;
  ppoints[pindex].ay      = ppoints[pindex].y;
  ppoints[pindex].type    = PPOINT_LINE;
  ppoints[pindex].hinted  = 0;

  /* update ideal position */
  currx                  += dx;
  curry                  += dy;

  return(0);
}
 
/* |- dx1 dy1 dx2 dy2 dx3 dy3 RRCURVETO |- */
/* Relative RCURVETO, equivalent to dx1 dy1 */
/* (dx1+dx2) (dy1+dy2) (dx1+dx2+dx3) */
/* (dy1+dy2+dy3) RCURVETO in PostScript */
static int RRCurveTo(dx1, dy1, dx2, dy2, dx3, dy3)
  DOUBLE dx1, dy1, dx2, dy2, dx3, dy3;
{
  long pindex = 0;
  
  /* compute hinting for previous point! */
  FindStems( currx, curry, currx-ppoints[numppoints-2].x, curry-ppoints[numppoints-2].y, dx1, dy1);

  /* Allocate three new path points and pre-setup data */
  pindex = nextPPoint();
  ppoints[pindex].x       = currx + dx1;
  ppoints[pindex].y       = curry + dy1;
  ppoints[pindex].ax      = ppoints[pindex].x;
  ppoints[pindex].ay      = ppoints[pindex].y;
  ppoints[pindex].type    = PPOINT_BEZIER_B;
  ppoints[pindex].hinted  = 0;

  /* update ideal position */
  currx                  += dx1;
  curry                  += dy1;

  /* compute hinting for previous point! */
  FindStems( currx, curry, currx-ppoints[numppoints-2].x, curry-ppoints[numppoints-2].y, dx2, dy2);

  pindex = nextPPoint();
  ppoints[pindex].x       = currx + dx2;
  ppoints[pindex].y       = curry + dy2;
  ppoints[pindex].ax      = ppoints[pindex].x;
  ppoints[pindex].ay      = ppoints[pindex].y;
  ppoints[pindex].type    = PPOINT_BEZIER_C;
  ppoints[pindex].hinted  = 0;

  /* update ideal position */
  currx                  += dx2;
  curry                  += dy2;

  /* compute hinting for previous point! */
  FindStems( currx, curry, currx-ppoints[numppoints-2].x, curry-ppoints[numppoints-2].y, dx3, dy3);

  pindex = nextPPoint();
  ppoints[pindex].x       = currx + dx3;
  ppoints[pindex].y       = curry + dy3;
  ppoints[pindex].ax      = ppoints[pindex].x;
  ppoints[pindex].ay      = ppoints[pindex].y;
  ppoints[pindex].type    = PPOINT_BEZIER_D;
  ppoints[pindex].hinted  = 0;

  /* update ideal position */
  currx                  += dx3;
  curry                  += dy3;

  return(0);
}
 
/* - CLOSEPATH |- */
/* Closes a subpath WITHOUT repositioning the */
/* current point */
static int DoClosePath()
{
  long pindex = 0;
  long i = 0;
  long tmpind;
  double deltax = 0.0;
  double deltay = 0.0;
  
  /* If this ClosePath command together with the starting point of this
     path completes to a segment aligned to a stem, we would miss
     hinting for this point. --> Check and explicitly care for this! */
  /* 1. Step back in the point list to the last moveto-point */
  i = numppoints - 1;
  while ( (i > 0) && (ppoints[i].type != PPOINT_MOVE ) ) { 
    --i; 
  }
  
  /* 2. Re-hint starting point and hint current point */
  if ( ppoints[i].type == PPOINT_MOVE) {
    deltax = ppoints[i].x - ppoints[numppoints-1].x;
    deltay = ppoints[i].y - ppoints[numppoints-1].y;

    /* save nummppoints and reset to move point */
    tmpind = numppoints;
    numppoints = i + 1;
    
    /* re-hint starting point of current subpath (uses the value of numppoints!) */
    FindStems( ppoints[i].x, ppoints[i].y, deltax, deltay,
	       ppoints[i+1].x-ppoints[i].x, ppoints[i+1].y-ppoints[i].y);

    /* restore numppoints and setup hinting for current point */
    numppoints = tmpind;
    FindStems( currx, curry, currx-ppoints[numppoints-2].x, curry-ppoints[numppoints-2].y,
	       deltax, deltay);
  }
  
  /* Allocate a new path point and pre-setup data */
  pindex = nextPPoint();
  ppoints[pindex].x       = currx;
  ppoints[pindex].y       = curry;
  ppoints[pindex].ax      = ppoints[pindex-1].x;
  ppoints[pindex].ay      = ppoints[pindex-1].y;
  ppoints[pindex].type    = PPOINT_CLOSEPATH;
  ppoints[pindex].hinted  = 0;

  return(0);
}
 
/* subr# CALLSUBR - */
/* Calls a CharString subroutine with index */
/* subr# from the Subrs array */
static int CallSubr(subrno)
  int subrno;
{
  IfTrace2((FontDebug), "CallSubr %d (CallStackSize=%d)\n", subrno, CallTop);
  if ((subrno < 0) || (subrno >= SubrsP->len))
    Error0i("CallSubr: subrno out of range\n");
  PushCall(CharStringP, strindex, r);
  CharStringP = &SubrsP->data.arrayP[subrno];
  StartDecrypt();
  return(0);
}
 
/* - RETURN - */
/* Returns from a Subrs array CharString */
/* subroutine called with CALLSUBR */
static int Return()
{
  IfTrace0((FontDebug), "Return\n");
  PopCall(&CharStringP, &strindex, &r);
  return(0);
}
 
/* - ENDCHAR |- */
/* Finishes a CharString outline */
/* Executes SETCHACHEDEVICE using a bounding box */
/* it computes directly from the character outline */
/* and using the width information acquired from a previous */
/* HSBW or SBW.  It then calls a special version of FILL */
/* or STROKE depending on the value of PaintType in the */
/* font dictionary */
static int EndChar()
{
  long pindex = 0;
  
  IfTrace0((FontDebug), "EndChar\n");
 
  /* There is no need to compute and set bounding box for
     the cache, since XIMAGER does that on the fly. */
 
  /* Allocate a new path point and pre-setup data.
     Note: For this special case, we use the variables that usually
     store hinted coordinates for the escapement of the character.
     It is required in handleCurrentSegment().
  */
  pindex = nextPPoint();
  ppoints[pindex].x       = currx;
  ppoints[pindex].y       = curry;
  ppoints[pindex].ax      = escapementX;
  ppoints[pindex].ay      = escapementY;
  ppoints[pindex].type    = PPOINT_ENDCHAR;
  ppoints[pindex].hinted  = -1;

  return(0);
 
}
 
/* |- dx dy RMOVETO |- */
/* Behaves like RMOVETO in PostScript */
static int RMoveTo(dx,dy)
  DOUBLE dx,dy;
{
  long pindex = 0;

  /* Compute hinting for this path point! */
  if ( numppoints == 1 ) {
    /* Since RMoveTo for this case starts a new path segment
       (flex-constructs have already been handled), the current
       point is hinted here only taking the next point into account,
       but not the previous. Later on, in DoClosePath(), we'll step
       back to this point and the position might be rehinted. */
    FindStems( currx, curry, 0, 0, dx, dy);
  }
  else {
    FindStems( currx, curry, ppoints[numppoints-2].x, ppoints[numppoints-2].y, dx, dy);
  }
  


  /* Allocate a new path point and pre-setup data */
  pindex = nextPPoint();
  ppoints[pindex].x       = currx + dx;
  ppoints[pindex].y       = curry + dy;
  ppoints[pindex].ax      = ppoints[pindex].x;
  ppoints[pindex].ay      = ppoints[pindex].y;
  ppoints[pindex].type    = PPOINT_MOVE;
  ppoints[pindex].hinted  = 0;

  /* update ideal position */
  currx                  += dx;
  curry                  += dy;
  
  return 0;
}
 
/* - DOTSECTION |- */
/* Brackets an outline section for the dots in */
/* letters such as "i", "j", and "!". */
static int DotSection()
{
  IfTrace0((FontDebug), "DotSection\n");
  InDotSection = !InDotSection;
  return(0);
}
 
/* |- asb adx ady bchar achar SEAC |- */
/* Standard Encoding Accented Character. */
static int Seac(asb, adx, ady, bchar, achar)
  DOUBLE asb, adx, ady;
  unsigned char bchar, achar;
{
  int Code;
  long pindex = 0;
  
  IfTrace4((FontDebug), "SEAC %f %f %f %d ", asb, adx, ady, bchar);
  IfTrace1((FontDebug), "%d\n", achar);
 
  /* Move adx - asb, ady over and up from base char's sbpoint. */
  /* (We use adx - asb to counteract the accents sb shift.) */
  /* The variables accentoffsetX/Y modify sidebearingX/Y in Sbw(). */
  /* Note that these incorporate the base character's sidebearing shift by */
  /* using the current sidebearingX, Y values. */
  accentoffsetX = adx - asb;
  accentoffsetY = ady;

  /* Set path = NULL to avoid complaints from Sbw(). */
  path = NULL;
 
  /* Go find the CharString for the accent's code via an upcall */
  CharStringP = GetType1CharString(Environment, achar);
  if (CharStringP == NULL) {
     Error1i("Invalid accent ('%03o) in SEAC\n", achar);
  }
  StartDecrypt();
 
  ClearStack();
  ClearPSFakeStack();
  ClearCallStack();
 
  for (;;) {
    if (!DoRead(&Code)) break;
    Decode(Code);
    if (errflag) return(0);
  }

  /* Allocate a new path point. Data in this case is not relevant
     in handleSegment(), we merely insert a snap() in order to return
     to origin of the accent char. */
  pindex = nextPPoint();
  ppoints[pindex].x       = accentoffsetX;
  ppoints[pindex].y       = accentoffsetY;
  ppoints[pindex].ax      = accentoffsetX;
  ppoints[pindex].ay      = accentoffsetY;
  ppoints[pindex].type    = PPOINT_SEAC;
  ppoints[pindex].hinted  = 0;

  /* We must reset these to null now. */
  accentoffsetX = accentoffsetY = 0;
 
  /* go find the CharString for the base char's code via an upcall */
  CharStringP = GetType1CharString(Environment, bchar);
  StartDecrypt();
 
  ClearStack();
  ClearPSFakeStack();
  ClearCallStack();
 
  InitStems();
 
  for (;;) {
    if (!DoRead(&Code)) break;
    Decode(Code);
    if (errflag) return(0);
  }

  return(0);
}
 
 
/* |- sbx sby wx wy SBW |- */
/* Set the left sidebearing point to (sbx,sby), */
/* set the character width vector to (wx,wy). */
static int Sbw(sbx, sby, wx, wy)
  DOUBLE sbx, sby, wx, wy;
{
  long pindex = 0;
  
  
  IfTrace4((FontDebug), "SBW %f %f %f %f\n", sbx, sby, wx, wy);
 
  escapementX = wx; /* Character width vector */
  escapementY = wy;
 
  /* Sidebearing values are sbx, sby args, plus accent offset from Seac(). */
  sidebearingX = sbx + accentoffsetX;
  sidebearingY = sby + accentoffsetY;
 
  currx = sidebearingX;
  curry = sidebearingY;
  /*
  path = Join(path, Loc(CharSpace, sidebearingX, sidebearingY));
  if (ProcessHints) {
    hcurrx = sidebearingX;
    hcurry = sidebearingY;
  }
  */
  
  /* Allocate a path point and setup.
     Note: In this special case, we store the char escapement in the members
           ax and ay. They are required in handleCurrentSegment(). Hinting
	   is not required for SBW, anyhow!
  */
  pindex = nextPPoint();
  ppoints[pindex].x       = currx;
  ppoints[pindex].y       = curry;
  ppoints[pindex].ax      = wx;
  ppoints[pindex].ay      = wy;
  ppoints[pindex].type    = PPOINT_SBW;
  ppoints[pindex].hinted  = -1; /* indicate that point is not to be hinted */
 
  return(0);
}
 
 /* num1 num2 DIV quotient */
/* Behaves like DIV in the PostScript language */
static DOUBLE Div(num1, num2)
  DOUBLE num1, num2;
{
  IfTrace2((FontDebug), "Div %f %f\n", num1, num2);
  return(num1 / num2);
}
 
/*
  The following four subroutines (FlxProc, FlxProc1, FlxProc2, and
  HintReplace) are C versions of the OtherSubrs Programs, which were
  were published in the Adobe Type 1 Font Format book.
 
  The Flex outline fragment is described by
    c1: (x0, y0) = c3: (x0, yshrink(y0)) or (xshrink(x0), y0)
     "  (x1, y1) =  "  (x1, yshrink(y1)) or (xshrink(x1), y1)
     "  (x2, y2) - reference point
    c2: (x0, y0) = c4: (x0, yshrink(y0)) or (xshrink(x0), y0)
     "  (x1, y1) =  "  (x1, yshrink(y1)) or (xshrink(x1), y1)
     "  (x2, y2) =  "  (x2, y2), rightmost endpoint
    c3: (x0, y0) - control point, 1st Bezier curve
     "  (x1, y1) - control point,      -"-
     "  (x2, y2) - end point,          -"-
    c4: (x0, y0) - control point, 2nd Bezier curve
     "  (x1, y1) - control point,      -"-
     "  (x2, y2) - end point,          -"-
    ep: (epY, epX) - final endpoint (should be same as c4: (x2, y2))
    idmin - minimum Flex height (1/100 pixel) at which to render curves
*/
 
#define dtransform(dxusr,dyusr,dxdev,dydev) { \
  register struct segment *point = Loc(CharSpace, dxusr, dyusr); \
  QueryLoc(point, IDENTITY, dxdev, dydev); \
  Destroy(point); \
}
 
#define itransform(xdev,ydev,xusr,yusr) { \
  register struct segment *point = Loc(IDENTITY, xdev, ydev); \
  QueryLoc(point, CharSpace, xusr, yusr); \
  Destroy(point); \
}
 
#define transform(xusr,yusr,xdev,ydev) dtransform(xusr,yusr,xdev,ydev)
 
#define PaintType (0)
 
#define xshrink(x) ((x - c4x2) * shrink +c4x2)
#define yshrink(y) ((y - c4y2) * shrink +c4y2)
 
#define PickCoords(flag) \
  if (flag) { /* Pick "shrunk" coordinates */ \
    x0 = c1x0; y0 = c1y0; \
    x1 = c1x1; y1 = c1y1; \
    x2 = c1x2; y2 = c1y2; \
    x3 = c2x0; y3 = c2y0; \
    x4 = c2x1; y4 = c2y1; \
    x5 = c2x2; y5 = c2y2; \
  } else { /* Pick original coordinates */ \
    x0 = c3x0; y0 = c3y0; \
    x1 = c3x1; y1 = c3y1; \
    x2 = c3x2; y2 = c3y2; \
    x3 = c4x0; y3 = c4y0; \
    x4 = c4x1; y4 = c4y1; \
    x5 = c4x2; y5 = c4y2; \
  }
 
/* FlxProc() = OtherSubrs[0]; Main part of Flex          */
/*   Calling sequence: 'idmin epX epY 3 0 callothersubr' */
/*   Computes Flex values, and renders the Flex path,    */
/*   and returns (leaves) ending coordinates on stack    */
static void FlxProc(c1x2, c1y2, c3x0, c3y0, c3x1, c3y1, c3x2, c3y2,
             c4x0, c4y0, c4x1, c4y1, c4x2, c4y2, epY, epX, idmin)
  DOUBLE c1x2, c1y2;
  DOUBLE c3x0, c3y0, c3x1, c3y1, c3x2, c3y2;
  DOUBLE c4x0, c4y0, c4x1, c4y1, c4x2, c4y2;
  DOUBLE epX, epY;
  int idmin;
{
  DOUBLE dmin;
  DOUBLE c1x0, c1y0, c1x1, c1y1;
  DOUBLE c2x0, c2y0, c2x1, c2y1, c2x2, c2y2;
  char yflag;
  DOUBLE x0, y0, x1, y1, x2, y2, x3, y3, x4, y4, x5, y5;
  DOUBLE cxx, cyx, cxy, cyy; /* Transformation matrix */
  int flipXY;
  DOUBLE x, y;
  DOUBLE erosion = 1; /* Device parameter */
    /* Erosion may have different value specified in 'internaldict' */
  DOUBLE shrink;
  DOUBLE dX, dY;
  char erode;
  DOUBLE eShift;
  DOUBLE cx, cy;
  DOUBLE ex, ey;


  /* Our PPOINT list now contains 7 moveto commands which
     are about to be consumed by the Flex mechanism. --> Remove these
     seven elements (their values already reside on the PSFakeStack!)
     and approriately restore the current accumulated position. */
  numppoints -= 7;
  currx = ppoints[numppoints-1].x;
  curry = ppoints[numppoints-1].y;
 
  if (ProcessHints) {
    dmin = TYPE1_ABS(idmin) / 100.0; /* Minimum Flex height in pixels */
 
    c2x2 = c4x2; c2y2 = c4y2; /* Point c2 = c4 */
 
    yflag = FABS(c1y2 - c3y2) > FABS(c1x2 - c3x2); /* Flex horizontal? */
 
    QuerySpace(CharSpace, &cxx, &cyx, &cxy, &cyy); /* Transformation matrix */
 
    if (FABS(cxx) < 0.00001 || FABS(cyy) < 0.00001)
      flipXY = -1; /* Char on side */
    else if (FABS(cyx) < 0.00001 || FABS(cxy) < 0.00001)
      flipXY = 1; /* Char upright */
    else
      flipXY = 0; /* Char at angle */
 
    if (yflag) { /* Flex horizontal */
      if (flipXY == 0 || c3y2 == c4y2) { /* Char at angle or Flex height = 0 */
        PickCoords(FALSE); /* Pick original control points */
      } else {
        shrink = FABS((c1y2 - c4y2) / (c3y2 - c4y2)); /* Slope */
 
        c1x0 = c3x0; c1y0 = yshrink(c3y0);
        c1x1 = c3x1; c1y1 = yshrink(c3y1);
        c2x0 = c4x0; c2y0 = yshrink(c4y0);
        c2x1 = c4x1; c2y1 = yshrink(c4y1);
 
        dtransform(0.0, ROUND(c3y2-c1y2), &x, &y); /* Flex height in pixels */
        dY = FABS((flipXY == 1) ? y : x);
        PickCoords(dY < dmin); /* If Flex small, pick 'shrunk' control points */
 
        if (FABS(y2 - c1y2) > 0.001) { /* Flex 'non-zero'? */
          transform(c1x2, c1y2, &x, &y);
 
          if (flipXY == 1) {
            cx = x; cy = y;
          } else {
            cx = y; cy = x;
          }
 
          dtransform(0.0, ROUND(y2-c1y2), &x, &y);
          dY = (flipXY == 1) ? y : x;
          if (ROUND(dY) != 0)
            dY = ROUND(dY);
          else
            dY = (dY < 0) ? -1 : 1;
 
          erode = PaintType != 2 && erosion >= 0.5;
          if (erode)
            cy -= 0.5;
          ey = cy + dY;
          ey = CEIL(ey) - ey + FLOOR(ey);
          if (erode)
            ey += 0.5;
 
          if (flipXY == 1) {
            itransform(cx, ey, &x, &y);
          } else {
            itransform(ey, cx, &x, &y);
          }
 
          eShift = y - y2;
          y1 += eShift;
          y2 += eShift;
          y3 += eShift;
        }
      }
    } else { /* Flex vertical */
      if (flipXY == 0 || c3x2 == c4x2) { /* Char at angle or Flex height = 0 */
        PickCoords(FALSE); /* Pick original control points */
      } else {
        shrink = FABS((c1x2 - c4x2) / (c3x2 - c4x2)); /* Slope */
 
        c1x0 = xshrink(c3x0); c1y0 = c3y0;
        c1x1 = xshrink(c3x1); c1y1 = c3y1;
        c2x0 = xshrink(c4x0); c2y0 = c4y0;
        c2x1 = xshrink(c4x1); c2y1 = c4y1;
 
        dtransform(ROUND(c3x2 - c1x2), 0.0, &x, &y); /* Flex height in pixels */
        dX = FABS((flipXY == -1) ? y : x);
        PickCoords(dX < dmin); /* If Flex small, pick 'shrunk' control points */
 
        if (FABS(x2 - c1x2) > 0.001) {
          transform(c1x2, c1y2, &x, &y);
          if (flipXY == -1) {
            cx = y; cy = x;
          } else {
            cx = x; cy = y;
          }
 
          dtransform(ROUND(x2-c1x2), 0.0, &x, &y);
          dX = (flipXY == -1) ? y : x;
          if (ROUND(dX) != 0)
            dX = ROUND(dX);
          else
            dX = (dX < 0) ? -1 : 1;
 
          erode = PaintType != 2 && erosion >= 0.5;
          if (erode)
            cx -= 0.5;
          ex = cx + dX;
          ex = CEIL(ex) - ex + FLOOR(ex);
          if (erode)
            ex += 0.5;
 
          if (flipXY == -1) {
            itransform(cy, ex, &x, &y);
          } else {
            itransform(ex, cy, &x, &y);
          }
 
          eShift = x - x2;
          x1 += eShift;
          x2 += eShift;
          x3 += eShift;
        }
      }
    }
 
    if (x2 == x5 || y2 == y5) {
      RLineTo( x5 - currx, y5 - curry); \
    } else {
      RRCurveTo( x0 - currx, y0 - curry,
		 x1 - x0, y1 - y0,
		 x2 - x1,
		 y2 - y1); 
      RRCurveTo( x3 - currx, y3 - curry,
		 x4 - x3, y4 - y3,
		 x5 - x4, y5 - y4); 
    }
  } else { /* ProcessHints is off */
    PickCoords(FALSE); /* Pick original control points */
    RRCurveTo( x0 - currx, y0 - curry,
	       x1 - x0, y1 - y0,
	       x2 - x1,
	       y2 - y1); 
    RRCurveTo( x3 - currx, y3 - curry,
	       x4 - x3, y4 - y3,
	       x5 - x4, y5 - y4); 
  }
 
  PSFakePush(epY);
  PSFakePush(epX);
}
 
/* FlxProc1() = OtherSubrs[1]; Part of Flex            */
/*   Calling sequence: '0 1 callothersubr'             */
/*   Saves and clears path, then restores currentpoint */
static void FlxProc1()
{
  /* Since we are now building the path point list,
     there's nothing to do here! */
  return;
}
 
/* FlxProc2() = OtherSubrs[2]; Part of Flex */
/*   Calling sequence: '0 2 callothersubr'  */
/*   Returns currentpoint on stack          */
static void FlxProc2()
{
  struct segment *CurrentPoint;
  DOUBLE CurrentX, CurrentY;
  
  /* Push CurrentPoint on fake PostScript stack */
  PSFakePush( ppoints[numppoints-1].x);
  PSFakePush( ppoints[numppoints-1].y);
}
 
/* HintReplace() = OtherSubrs[3]; Hint Replacement            */
/*   Calling sequence: 'subr# 1 3 callothersubr pop callsubr' */
/*   Reinitializes stem hint structure                        */
static void HintReplace()
{
  /* Effectively retire the current stems, but keep them around for */
  /* revhint use in case we are in a stem when we replace hints. */
  currstartstem = numstems;
 
  /* 'subr#' is left on PostScript stack (for 'pop callsubr') */
}
 
/* arg1 ... argn n othersubr# CALLOTHERSUBR - */
/* Make calls on the PostScript interpreter (or call equivalent C code) */
/* NOTE: The n arguments have been pushed on the fake PostScript stack */
static int CallOtherSubr(othersubrno)
  int othersubrno;
{
  IfTrace1((FontDebug), "CallOtherSubr %d\n", othersubrno);
  
  switch(othersubrno) {
  case 0: /* OtherSubrs[0]; Main part of Flex */
    if (PSFakeTop < 16) Error0i("CallOtherSubr: PSFakeStack low");
    ClearPSFakeStack();
    FlxProc(
	    PSFakeStack[0],  PSFakeStack[1],  PSFakeStack[2],  PSFakeStack[3],
	    PSFakeStack[4],  PSFakeStack[5],  PSFakeStack[6],  PSFakeStack[7],
	    PSFakeStack[8],  PSFakeStack[9],  PSFakeStack[10], PSFakeStack[11],
	    PSFakeStack[12], PSFakeStack[13], PSFakeStack[14], PSFakeStack[15],
	    (int) PSFakeStack[16]
	    );
    break;
  case 1: /* OtherSubrs[1]; Part of Flex */
    FlxProc1();
    break;
  case 2: /* OtherSubrs[2]; Part of Flex */
    FlxProc2();
    break;
  case 3: /* OtherSubrs[3]; Hint Replacement */
    HintReplace();
    break;
  case 12: /* OtherSubrs[12]: Counter Control Hinting */
    /* We do nothing, because later OtherSubrs[13] will
       remove data from the PS-stack */
    break;
  case 13:
    /* We pop all elements from PSFakeStack. They may either have been left
       from previous calls to OtherSubr #12 or have been pushed for this
       call */
    ClearPSFakeStack();
  break;
  default: { /* call OtherSubrs[4] or higher if PostScript is present */
    
  }
  }
  return(0);
}
 
/* |- x y SETCURRENTPOINT |- */
/* Sets the current point to (x,y) in absolute */
/* character space coordinates without per- */
/* forming a CharString MOVETO command */
static int SetCurrentPoint(x, y)
  DOUBLE x, y;
{
  IfTrace2((FontDebug), "SetCurrentPoint %f %f\n", x, y);
 
  currx = x;
  curry = y;
  return(0);
}
 
/* The Type1Char routine for use by PostScript. */
/************************************************/
struct xobject *Type1Char(psfont *env, struct XYspace *S,
			  psobj *charstrP, psobj *subrsP,
			  psobj *osubrsP,
			  struct blues_struct *bluesP,
			  int *modeP, char *charname,
			  float strokewidth)
{
  int Code;
  long i = 0;
  
  double xp, yp;
#ifdef DUMPDEBUGPATH
  char fnbuf[128];
#endif
  struct segment* p;

  /* Reset point list */
  ppoints          = NULL;
  numppoints       = 0;
  numppointchunks  = 0;

  /* disable hinting for stroking */
  if ( strokewidth != 0.0f )
    ProcessHints = 0;
  
  if ( env->fontInfoP[PAINTTYPE].value.data.integer == 1 )
    ProcessHints = 0;

  path    = NULL;
  apath   = NULL;
  errflag = FALSE;
 
  /* Make parameters available to all Type1 routines */
  currentchar=charname;
  Environment = (char *)env;
  CharSpace = S; /* used when creating path elements */
  CharStringP = charstrP;
  SubrsP = subrsP;
  OtherSubrsP = osubrsP;
  ModeP = modeP;
 
  blues = bluesP;
 
  QuerySpace( S, &scxx, &scyx, &scxy, &scyy); /* Transformation matrix */
  p = ILoc( S, 1, 0);
  QueryLoc(p, IDENTITY, &xp, &yp);
  up = FABS(xp);
 
  size = scxx * 1000.0;
#ifdef DUMPDEBUGPATH
  sprintf( fnbuf, "t1dump_%s_%f.eps", charname, size); 
  psfile = fopen( fnbuf, "wb");
  if ( psfile != NULL ) {
    PSDumpProlog( psfile);
    fprintf( psfile, "T1LibDict begin\n\ngsave\n%f t1SetupSize\nt1PreparePage\n", size);
  }
  
#endif

  /* compute the alignment zones */
  SetRasterFlags();
  ComputeAlignmentZones();
  StartDecrypt();
  ClearStack();
  ClearPSFakeStack();
  ClearCallStack();
  InitStems();

  /* reset variables */
  currx = curry = 0.0;
  hcurrx = hcurry = 0.0;
  escapementX = escapementY = 0;
  sidebearingX = sidebearingY = 0;
  accentoffsetX = accentoffsetY = 0;
  wsoffsetX = wsoffsetY = 0;           /* No shift to preserve whitspace. */
  wsset = 0;                           /* wsoffsetX,Y haven't been set yet. */

  
  for (;;) {
    if (!DoRead(&Code)) break;
    Decode(Code);
    if (errflag) break;
  }

  /* We now have a point list in absolute charspace coordinates. Adjust
     non-hinted points to suppress hinting artifacts and generate path. */
  for ( i=0; i<numppoints; i++ ) {
    if ( ppoints[i].type == PPOINT_BEZIER_D)
      adjustBezier( i);
  }
  /* Create path elements */
#if defined(DUMPDEBUGPATH) & defined(DUMPDEBUGPATHBOTH)
  if ( env->fontInfoP[PAINTTYPE].value.data.integer == 0 ) {
    /* For this special debug case, we generate both a filled and a stroked
       path!. */
      createStrokePath( strokewidth, SUBPATH_CLOSED);
      createFillPath();
  }
  else if ( env->fontInfoP[PAINTTYPE].value.data.integer == 1 ) {
    /* PaintType = 1 indicates stroked font. If strokewidth is 0.0f,
       we stroke using the font's internal strokewidth. Otherwise, the
       user supplied value is used. */
    if ( strokewidth != 0.0f )
      createStrokePath( strokewidth, SUBPATH_OPEN);
    else
      createStrokePath( env->fontInfoP[STROKEWIDTH].value.data.real, SUBPATH_OPEN);
  }
#else
  if ( env->fontInfoP[PAINTTYPE].value.data.integer == 0 ) {
    /* PaintType = 0 indicates filled font. Hence, a strokewidth value
       other than 0.0 indicates the character is to be stroked instead
       of to be filled. */
    if ( strokewidth != 0.0f )
      createStrokePath( strokewidth, SUBPATH_CLOSED);
    else
      createFillPath();
  }
  else if ( env->fontInfoP[PAINTTYPE].value.data.integer == 1 ) {
    /* PaintType = 1 indicates stroked font. If strokewidth is 0.0f,
       we stroke using the font's internal strokewidth. Otherwise, the
       user supplied value is used. */
    if ( strokewidth != 0.0f )
      createStrokePath( strokewidth, SUBPATH_OPEN);
    else
      createStrokePath( env->fontInfoP[STROKEWIDTH].value.data.real, SUBPATH_OPEN);
  }
#endif
  
  /* check and handle accented char */
  if ( apath != NULL ) {
    path = Join( apath, path);
  }
  
  /* Report a possible error: */
  *modeP=errflag;
  
  /* Clean up if an error has occurred */
  if (errflag) {
    if (path != NULL) {
      Destroy(path); /* Reclaim storage */
      path = NULL;   /* Indicate that character could not be built */
    }
  }
 
#ifdef DUMPDEBUGPATH
  if ( psfile != NULL ) {
    PSDumpEpilog( psfile);
    fclose( psfile);
    psfile = 0;
  }
#endif

  /* Cleanup ppoints */
  if ( ppoints != NULL ) {
    free( ppoints);
    ppoints = NULL;
    numppoints = 0;
  }
  
  return((struct xobject *) path);
}
 

/* We add a function to implement underlining in Type1-Routines. */
struct xobject *Type1Line(psfont *env, struct XYspace *S,
			  float line_position,
			  float line_thickness,
			  float line_length,
			  float strokewidth)
{

  /* Reset point list */
  ppoints          = NULL;
  numppoints       = 0;
  numppointchunks  = 0;
  
  path    = NULL;
  apath   = NULL;
  errflag = FALSE;

  
  /* Make parameters available to all Type1 routines */
  Environment = (char *)env;
  CharSpace = S; /* used when creating path elements */

  currx = curry = 0;
  escapementX = escapementY = 0;
  sidebearingX = sidebearingY = 0;
  /* We have to initialize the stems-structures because
     the lineto commands refer to them! */
  SetRasterFlags();
  InitStems();
  
  /* Draw Character */
  Sbw(-1.0*line_length, 0.0, 0.0, 0.0);
  RMoveTo( 0.0,  (double) (line_position+0.5*line_thickness));
  RLineTo( 0.0, (double) -line_thickness);
  RLineTo( (double) line_length, 0.0);
  RLineTo( 0.0, (double) line_thickness);
  DoClosePath();  
  EndChar();

  /* Create path */
  if ( strokewidth != 0.0f )
    createStrokePath( strokewidth, SUBPATH_CLOSED);
  else
    createFillPath();
  
  /* Cleanup ppoints */
  if ( ppoints != NULL ) {
    free( ppoints);
    ppoints = NULL;
  }

  return((struct xobject *)path);
  
}


/* Adjust the points of a given cubic Bezier Spline so that the
   geometric relation of points B and C to A and D remain
   qualitatively the same. This reduces hinting artifacts
   at low resolutions.
*/
static void adjustBezier( long pindex)
{
  double deltax  = 0.0;      /* x distance between point A and D */
  double deltay  = 0.0;      /* y distance between point A and D */
  double adeltax = 0.0;      /* x distance between hinted point A and D */
  double adeltay = 0.0;      /* y distance between hinted point A and D */

  deltax  = ppoints[pindex].x - ppoints[pindex-3].x;
  deltay  = ppoints[pindex].y - ppoints[pindex-3].y;
  adeltax = ppoints[pindex].ax - ppoints[pindex-3].ax;
  adeltay = ppoints[pindex].ay - ppoints[pindex-3].ay;

  if ( deltax == 0 || deltay == 0 )
    return;
  
  ppoints[pindex-1].ax = ppoints[pindex-3].ax +
    (adeltax / deltax * (ppoints[pindex-1].x - ppoints[pindex-3].x));
  ppoints[pindex-1].ay = ppoints[pindex-3].ay +
    (adeltay / deltay * (ppoints[pindex-1].y - ppoints[pindex-3].y));
  ppoints[pindex-2].ax = ppoints[pindex-3].ax +
    (adeltax / deltax * (ppoints[pindex-2].x - ppoints[pindex-3].x));
  ppoints[pindex-2].ay = ppoints[pindex-3].ay +
    (adeltay / deltay * (ppoints[pindex-2].y - ppoints[pindex-3].y));

  return;
  
}



/* This function actually generates path segments. It is called
   after all hinting and adjustments have been performed.
*/
static void handleCurrentSegment( long pindex)
{
  struct segment* B;
  struct segment* C;
  struct segment* D;
  struct segment* tmpseg;
  double dx1;
  double dy1;
  double dx2;
  double dy2;
  double dx3;
  double dy3;
  double adx1;
  double ady1;
  double adx2;
  double ady2;
  double adx3;
  double ady3;
  

  /* handle the different segment types in a switch-statement */
  switch ( ppoints[pindex].type ) {

  case PPOINT_MOVE:
    /* handle a move segment */
    dx1  = ppoints[pindex].x - ppoints[pindex-1].x;
    dy1  = ppoints[pindex].y - ppoints[pindex-1].y;
    adx1 = ppoints[pindex].ax - ppoints[pindex-1].ax;
    ady1 = ppoints[pindex].ay - ppoints[pindex-1].ay;
    
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1rmoveto\n", dx1*up, dy1*up);
#endif
    if ( ProcessHints ) {
      IfTrace2((FontDebug), "RMoveTo(h) %f %f\n", adx1, ady1);
      B = Loc(CharSpace, adx1, ady1);
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL ) {
	fprintf( psfile, "%f %f t1hintedrmoveto\n", adx1*up, ady1*up);
      }
#endif
    }
    else {
      IfTrace2((FontDebug), "RMoveTo %f %f\n", dx1, dy1);
      B = Loc(CharSpace, dx1, dy1);
    }
    path = Join(path, B);
    break;


  case PPOINT_LINE:
    /* handle a line segment */
    dx1  = ppoints[pindex].x - ppoints[pindex-1].x;
    dy1  = ppoints[pindex].y - ppoints[pindex-1].y;
    adx1 = ppoints[pindex].ax - ppoints[pindex-1].ax;
    ady1 = ppoints[pindex].ay - ppoints[pindex-1].ay;
    
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1rlineto\n", dx1*up, dy1*up);
#endif
    if ( ProcessHints ) {
      IfTrace2((FontDebug), "RLineTo(h) %f %f\n", adx1, ady1);
      B = Loc(CharSpace, adx1, ady1);
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL ) {
	fprintf( psfile, "%f %f t1hintedrlineto\n", adx1*up, ady1*up);
      }
#endif
    }
    else {
      IfTrace2((FontDebug), "RLineTo %f %f\n", dx1, dy1);
      B = Loc(CharSpace, dx1, dy1);
    }
    path = Join(path, Line(B));
    break;


  case PPOINT_BEZIER_B:
    /* handle a bezier segment (given by this and the following points) */
    dx1  = ppoints[pindex].x - ppoints[pindex-1].x;
    dy1  = ppoints[pindex].y - ppoints[pindex-1].y;
    adx1 = ppoints[pindex].ax - ppoints[pindex-1].ax;
    ady1 = ppoints[pindex].ay - ppoints[pindex-1].ay;
    dx2  = ppoints[pindex+1].x - ppoints[pindex].x;
    dy2  = ppoints[pindex+1].y - ppoints[pindex].y;
    adx2 = ppoints[pindex+1].ax - ppoints[pindex].ax;
    ady2 = ppoints[pindex+1].ay - ppoints[pindex].ay;
    dx3  = ppoints[pindex+2].x - ppoints[pindex+1].x;
    dy3  = ppoints[pindex+2].y - ppoints[pindex+1].y;
    adx3 = ppoints[pindex+2].ax - ppoints[pindex+1].ax;
    ady3 = ppoints[pindex+2].ay - ppoints[pindex+1].ay;


#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f %f %f %f %f t1rrcurveto\n",
	       dx1*up, dy1*up,
	       dx2*up, dy2*up,
	       dx3*up, dy3*up);
#endif
    if (ProcessHints) {
      IfTrace4((FontDebug), "RRCurveTo %f %f %f %f ",
	       adx1, ady1, adx2, ady2);
      IfTrace2((FontDebug), "%f %f\n", adx3, ady3);
      B = Loc(CharSpace, adx1, ady1);
      C = Loc(CharSpace, adx2, ady2);
      D = Loc(CharSpace, adx3, ady3);
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL ) {
	fprintf( psfile, "%f %f %f %f %f %f t1hintedrrcurveto\n",
		 adx1*up, ady1*up,
		 adx2*up, ady2*up,
		 adx3*up, ady3*up);
      }
#endif
    }
    else {
      IfTrace4((FontDebug), "RRCurveTo %f %f %f %f ",
	       dx1, dy1, dx2, dy2);
      IfTrace2((FontDebug), "%f %f\n", dx3, dy3);
      B = Loc(CharSpace, dx1, dy1);
      C = Loc(CharSpace, dx2, dy2);
      D = Loc(CharSpace, dx3, dy3);
    }
    
    /* Since XIMAGER is not completely relative, */
    /* we need to add up the delta values */
    C = Join(C, Dup(B));
    D = Join(D, Dup(C));
    path = Join(path, Bezier(B, C, D));
    break;


  case PPOINT_SBW:
#ifdef DUMPDEBUGPATH
  if ( psfile != NULL )
    fprintf( psfile, "%f %f %f %f t1sbw\n",
	     ppoints[pindex].x*up, ppoints[pindex].y*up,   /* sidebearings */
	     ppoints[pindex].ax*up, ppoints[pindex].ay*up  /* escapements  */
	     );
#endif
    path = Join(path, Loc(CharSpace, ppoints[pindex].x, ppoints[pindex].y));
    break;
    
    
  case PPOINT_CLOSEPATH:
    IfTrace0((FontDebug), "DoClosePath\n");
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL ) {
      fprintf( psfile, "t1closepath\n");
      if ( ProcessHints )
	fprintf( psfile, "t1hintedclosepath\n");
    }
#endif
    
    tmpseg = Phantom(path);
    path = ClosePath(path);
    path = Join(Snap(path), tmpseg);
    break;
    
    
  case PPOINT_ENDCHAR:
    /* Perform a Closepath just in case the command was left out */
    path = ClosePath(path);
    
    /* Set character width / escapement. It is stored in the vars for
       hinted coordinates. */
    path = Join(Snap(path), Loc(CharSpace, ppoints[pindex].ax, ppoints[pindex].ay));
    
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fputs( "t1FinishPage\ngrestore\n", psfile);
#endif
    break;
    

  case PPOINT_SEAC:
    /* return to origin of accent */
    apath = Snap(path);
    /* reset path to NULL */
    path  = NULL;
    break;
    
    
  default:
    /* We must be at the beginning of the path, that is, there is
       nothing to do! */
    ;
  }

  return;
  
}


#ifdef DUMPDEBUGPATH
static void PSDumpProlog( FILE* fp)
{
#include "t1chardump"
}


static void PSDumpEpilog( FILE* fp)
{
  fputs( "\nend\n", fp);
}

#endif /* #ifdef DUMPDEBUGPATH */



/* Take the accumulated path point list and construct the path that is
   to be filled. */
static void createFillPath( void)
{
  long i;
  
  for ( i=0; i<numppoints; i++ ) {
    handleCurrentSegment( i);
  }
  return;
}


/* Take the accumulated path point list and construct a path so that the
   character appears as a stroked outline, where the virtual pen has a diameter
   of strokewidth (measured in big points [bp]). This function works analogously
   to PostScripts charpath operator. */
static void createStrokePath( double strokewidth, int subpathclosed)
{
  long pindex   = 0;
  long startind = 0;
  long stopind  = 0;


  /* For each subpath in the path list (some sub path is closed!), we construct 
     one path interior and one path exterior to the path under consideration in
     a way, that the resulting thick curve has a thickness of strokewidth. */

  if ( subpathclosed == 0 ) {
    /* We have a stroked font */
    /* loop through all subpaths */
    while ( pindex < numppoints ) {
      /* First, handle any non-subpath commands. */
      if ( handleNonSubPathSegments( pindex) != 0 ) {
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "PPoint %ld: (%f,%f), Type=%s\n", pindex,
		 ppoints[pindex].x, ppoints[pindex].y, pptypes[ppoints[pindex].type]);
#endif
	++pindex;
	continue;
      }
      
      if ( ppoints[pindex].type == PPOINT_LINE ||
	   ppoints[pindex].type == PPOINT_BEZIER_B ) {
	if ( ppoints[pindex-1].type == PPOINT_MOVE ) {
	  /* A line or curve segment following a move segment indicates a
	     new subpath. */
	  startind = pindex - 1;
	  while ( (pindex < numppoints) &&
		  (ppoints[pindex].type != PPOINT_CLOSEPATH) &&
		  (ppoints[pindex].type != PPOINT_MOVE) && 
		  (ppoints[pindex].type != PPOINT_ENDCHAR) 
		  ) {
#ifdef DEBUG_OUTLINE_SURROUNDING
	    fprintf( stderr, "PPoint %ld: (%f,%f), Type=%s\n", pindex,
		   ppoints[pindex].x, ppoints[pindex].y, pptypes[ppoints[pindex].type]);
#endif
	    ++pindex;
	  }
	  if ( (ppoints[pindex].type == PPOINT_ENDCHAR) ||  /* for outline fonts */
	       (ppoints[pindex].type == PPOINT_MOVE)          /* for stroked fonts */
	       ) {
#ifdef DEBUG_OUTLINE_SURROUNDING
	    fprintf( stderr, "PPoint %ld: (%f,%f), Type=%s\n", pindex,
		   ppoints[pindex].x, ppoints[pindex].y, pptypes[ppoints[pindex].type]);
#endif
	    stopind = --pindex;
#ifdef DEBUG_OUTLINE_SURROUNDING
	    fprintf( stderr, "Found subpath from index %ld to %ld inclusively\n", startind, stopind);
#endif
	    /* We have found a subpath defined by the path points indexed by
	       the interval from startind to stopind. */
	    createClosedStrokeSubPath( startind, stopind, strokewidth, subpathclosed);
	  }
	}
      }
      ++pindex;
    }
  }
  else {
    /* We have a filled font */
    /* loop through all subpaths */
    while ( pindex < numppoints ) {
      /* First, handle any non-subpath commands. */
      if ( handleNonSubPathSegments( pindex) != 0 ) {
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "PPoint %ld: (%f,%f), Type=%s\n", pindex,
	       ppoints[pindex].x, ppoints[pindex].y, pptypes[ppoints[pindex].type]);
#endif
	++pindex;
	continue;
      }
      
      if ( ppoints[pindex].type == PPOINT_LINE ||
	   ppoints[pindex].type == PPOINT_BEZIER_B ) {
	if ( ppoints[pindex-1].type == PPOINT_MOVE ) {
	  /* A line or curve segment following a move segment indicates a
	     new subpath. */
	  startind = --pindex;
	  while ( (pindex < numppoints) &&
		  (ppoints[pindex].type != PPOINT_CLOSEPATH) 
		  ) {
#ifdef DEBUG_OUTLINE_SURROUNDING
	    fprintf( stderr, "PPoint %ld: (%f,%f), Type=%s\n", pindex,
		   ppoints[pindex].x, ppoints[pindex].y, pptypes[ppoints[pindex].type]);
#endif
	    ++pindex;
	  }
	  if ( ppoints[pindex].type == PPOINT_CLOSEPATH ) {
#ifdef DEBUG_OUTLINE_SURROUNDING
	    fprintf( stderr, "PPoint %ld: (%f,%f), Type=%s\n", pindex,
		   ppoints[pindex].x, ppoints[pindex].y, pptypes[ppoints[pindex].type]);
#endif
	    stopind = pindex;
#ifdef DEBUG_OUTLINE_SURROUNDING
	    fprintf( stderr, "Found subpath from index %ld to %ld inclusively\n", startind, stopind);
#endif
	    /* We have found a subpath defined by the path points indexed by
	       the interval from startind to stopind. */
	    createClosedStrokeSubPath( startind, stopind, strokewidth, subpathclosed);
	  }
	}
      }
      ++pindex;
    }
  }
  
  return;
  
}



/* Create two closed paths that surround the the current subpath of the
   charpath in a centered fashion. */
static void createClosedStrokeSubPath( long startind, long stopind,
				       double strokewidth, int subpathclosed)
{
  long i;
  long inext;
  long iprev;
  long ip = 0;
  long in = 0;
  long segstartind;
  long segendind;
  
  long lastind     = 0; /* Index of last point whose location is different from first
			   point. After this point there may follow an explicit line-
			   or curveto to the starting point and also the ClosePath-point
			   may be and usually is identical to the starting point. */

  double dx1;
  double dy1;
  double dx2;
  double dy2;
  double dx3;
  double dy3;
  
  struct segment* B;
  struct segment* C;
  struct segment* D;
  struct segment* tmpseg;

  int type;
  

  /* The ClosePath operator is somewhat problematic, because it adds a point
     to the defining points of a path, without actually having a distance to
     the previous or the next point. This causes problems with the distance
     handling. As a remedy, we check whether ClosePath is located at the first
     point or the last point of the path. In the latter case, ClosePath causes
     an additional line segment. */
  if ( (ppoints[stopind].x == ppoints[startind].x) &&
       (ppoints[stopind].y == ppoints[startind].y)
       ) {
    closepathatfirst = 1;
  }
  else {
    closepathatfirst = 0;
  }
  
  
  /* For each path point in the list, we have to define a set of points, to the
     left and to the right of the current curve. The positions of these
     new points depend on the coordinates of the previous path point, the current
     path and the next path point. */

  /* For the computations, the distance from the start and end points of curves
     and lines to the neighbouring points is required. We start by calculating
     these and by filling in the path point entries dist2prev and dist2next for
     the respective points. */
  lastind = computeDistances( startind, stopind, subpathclosed);

#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr, "startind=%ld, lastind=%ld, stopind=%ld\n", startind, lastind, stopind);
#endif

  /********************************************************************************
   ********************************************************************************
   ***** 
   ***** Path point transformation
   ***** 
   ********************************************************************************
   ********************************************************************************/

  /* Next we step through the path points of the current subpath and compute the 
     points' transformations. From these newly computed points,
     the path is constructed. */
  for ( i=startind; i<=lastind; ) {
    /* Be aware of cycling! */
    if ( i == startind ) {
      iprev = lastind;
      inext = i + 1;
    }
    else if ( i == lastind ) {
      iprev = i - 1;
      inext = startind;
    }
    else {
      iprev = i - 1;
      inext = i + 1;
    }
    
    
    switch ( ppoints[i].type ) {
    case PPOINT_MOVE:
      /* The first segment always is of type PPOINT_MOVE. It is defined by the first,
	 the second and the last point. */
      transformOnCurvePathPoint( strokewidth, iprev, i, inext);

      /* Compute one point which results from prolongating the linked segment and
	 and computing the intersection. The result values are stored in dxres,
	 dyres. */
      if ( subpathclosed == 0 ) {
	/* open subpath --> stroked font */
	if ( i == startind ) {
	  intersectRight( i, 0.5*strokewidth, INTERSECT_NEXT);
	}
	else if ( i == lastind ) {
	  intersectRight( i, 0.5*strokewidth, INTERSECT_PREVIOUS);
	}
	else {
	  intersectRight( i, 0.5*strokewidth, INTERSECT_BOTH);
	}
      }
      else {
	intersectRight( i, 0.5*strokewidth, INTERSECT_BOTH);
      }

#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "PP %ld (%s): (%f,%f), shape=%s;\n", i, pptypes[ppoints[i].type], 
	       ppoints[i].x, ppoints[i].y, ppshapes[ppoints[i].shape]);
      fprintf( stderr, "                     Right: prev (%f,%f); next (%f,%f)\n",
	       ppoints[i].x+ppoints[i].dxpr, ppoints[i].y+ppoints[i].dypr,
	       ppoints[i].x+ppoints[i].dxnr, ppoints[i].y+ppoints[i].dynr);
      fprintf( stderr, "                     Left:  prev (%f,%f); next (%f,%f)\n",
	       ppoints[i].x-ppoints[i].dxpr, ppoints[i].y-ppoints[i].dypr,
	       ppoints[i].x-ppoints[i].dxnr, ppoints[i].y-ppoints[i].dynr);
      fprintf( stderr, "                     Res:  Right (%f,%f); Left (%f,%f)\n\n",
	       ppoints[i].x+ppoints[i].dxir, ppoints[i].y+ppoints[i].dyir,
	       ppoints[i].x-ppoints[i].dxir, ppoints[i].y-ppoints[i].dyir);
#endif
      
      break;

      
    case PPOINT_LINE:
      transformOnCurvePathPoint( strokewidth, iprev, i, inext);
      if ( subpathclosed == 0 ) {
	/* open subpath --> stroked font */
	if ( i == startind )
	  intersectRight( i, 0.5*strokewidth, INTERSECT_NEXT);
	else if ( i == lastind )
	  intersectRight( i, 0.5*strokewidth, INTERSECT_PREVIOUS);
	else
	  intersectRight( i, 0.5*strokewidth, INTERSECT_BOTH);
      }
      else {
	intersectRight( i, 0.5*strokewidth, INTERSECT_BOTH);
      }
      
#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "PP %ld (%s): (%f,%f), shape=%s; \n",
	       i, pptypes[ppoints[i].type], ppoints[i].x, ppoints[i].y,
	       ppshapes[ppoints[i].shape]);
      fprintf( stderr, "                     Right: prev (%f,%f); next (%f,%f)\n",
	       ppoints[i].x+ppoints[i].dxpr, ppoints[i].y+ppoints[i].dypr,
	       ppoints[i].x+ppoints[i].dxnr, ppoints[i].y+ppoints[i].dynr);
      fprintf( stderr, "                     Left:  prev (%f,%f); next (%f,%f)\n",
	       ppoints[i].x-ppoints[i].dxpr, ppoints[i].y-ppoints[i].dypr,
	       ppoints[i].x-ppoints[i].dxnr, ppoints[i].y-ppoints[i].dynr);
      fprintf( stderr, "                     Res:  Right (%f,%f); Left (%f,%f)\n\n",
	       ppoints[i].x+ppoints[i].dxir, ppoints[i].y+ppoints[i].dyir,
	       ppoints[i].x-ppoints[i].dxir, ppoints[i].y-ppoints[i].dyir);
#endif

      break;

      
    case PPOINT_BEZIER_B:
      break;

    case PPOINT_BEZIER_C:
      break;

    case PPOINT_BEZIER_D:
      transformOnCurvePathPoint( strokewidth, iprev, i, inext);
      if ( subpathclosed == 0 ) {
	/* open subpath --> stroked font */
	if ( i == startind )
	  intersectRight( i, 0.5*strokewidth, INTERSECT_NEXT);
	else if ( i == lastind )
	  intersectRight( i, 0.5*strokewidth, INTERSECT_PREVIOUS);
	else
	  intersectRight( i, 0.5*strokewidth, INTERSECT_BOTH);
      }
      else {
	intersectRight( i, 0.5*strokewidth, INTERSECT_BOTH);
      }
      
#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "PP %ld (%s): (%f,%f), shape=%s;\n",
	       i, pptypes[ppoints[i].type], ppoints[i].x, ppoints[i].y,
	       ppshapes[ppoints[i].shape]);
      fprintf( stderr, "                     Right: prev (%f,%f); next (%f,%f)\n",
	       ppoints[i].x+ppoints[i].dxpr, ppoints[i].y+ppoints[i].dypr,
	       ppoints[i].x+ppoints[i].dxnr, ppoints[i].y+ppoints[i].dynr);
      fprintf( stderr, "                     Left:  prev (%f,%f); next (%f,%f)\n",
	       ppoints[i].x-ppoints[i].dxpr, ppoints[i].y-ppoints[i].dypr,
	       ppoints[i].x-ppoints[i].dxnr, ppoints[i].y-ppoints[i].dynr);
      fprintf( stderr, "                     Res:  Right (%f,%f); Left (%f,%f)\n\n",
	       ppoints[i].x+ppoints[i].dxir, ppoints[i].y+ppoints[i].dyir,
	       ppoints[i].x-ppoints[i].dxir, ppoints[i].y-ppoints[i].dyir);
#endif
      
      /* transform the preceding two offCurve points */
      transformOffCurvePathPoint( strokewidth, i-2);

      break;
      
    case PPOINT_CLOSEPATH:

      break;
      
    default:
      break;
    }
    ++i;
  }

  /* copy the shift values from starting point to ending points that
     have not yet been handled */
  for ( ; i<=stopind; i++) {
    ppoints[i].dxpr      = ppoints[startind].dxpr;
    ppoints[i].dypr      = ppoints[startind].dypr;
    ppoints[i].dxnr      = ppoints[startind].dxnr;
    ppoints[i].dynr      = ppoints[startind].dynr;
    ppoints[i].dxir      = ppoints[startind].dxir;
    ppoints[i].dyir      = ppoints[startind].dyir;
    ppoints[i].dist2prev = ppoints[startind].dist2prev;
    ppoints[i].dist2next = ppoints[startind].dist2next;
    if ( ppoints[i].type == PPOINT_BEZIER_D ) {
      transformOffCurvePathPoint( strokewidth, i-2);
    }
    ppoints[i].shape     = ppoints[startind].shape;
  }
  

  
  /* We now have computed the resulting shift values for each path point of the current
     subpath's right path. The values for the left path follow by negation.
     The path is still to be build!
  */

  /********************************************************************************
   ********************************************************************************
   ***** 
   ***** Construction of right path
   ***** 
   ********************************************************************************
   ********************************************************************************/

  /* The leading move segment is treated separately. First check from which
     point the leading Moveto was called. This is safe even in cases where
     multiple moveto appear in a series. */
  i = startind;
  while ( ppoints[i].type == PPOINT_MOVE )
    --i;
  dx1  = ppoints[startind].x - (ppoints[i].x);
  dy1  = ppoints[startind].y - (ppoints[i].y);
  /* If the first node in the subpath is not concave, we may directly jump
     to the intersection right path point. Otherwise, we remain at the onCurve
     point because later, prolongation will happen. */
  if ( ppoints[startind].shape != CURVE_CONCAVE ) {
    dx1  += ppoints[startind].dxir;
    dy1  += ppoints[startind].dyir;
  }
  
#ifdef DUMPDEBUGPATH
  if ( psfile != NULL )
    fprintf( psfile, "%f %f t1srmoveto\n", dx1*up, dy1*up);
#endif
  B = Loc(CharSpace, dx1, dy1);
  path = Join(path, B);
  
  
  /* Now, handle the remaining path in a loop */
  for ( i=startind+1; i<=stopind; ) {
    switch ( ppoints[i].type ) {
    case PPOINT_LINE:
      /* handle a line segment */
      
      /* 1. Check and handle starting node */
      linkNode( i-1, PATH_START, PATH_RIGHT);

      /* 2. Draw ideal isolated line segment */
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "RP:  Line from point %ld to %ld\n", i-1, i);
#endif
      dx1  = ppoints[i].x + ppoints[i].dxpr - (ppoints[i-1].x + ppoints[i-1].dxnr);
      dy1  = ppoints[i].y + ppoints[i].dypr - (ppoints[i-1].y + ppoints[i-1].dynr);
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL )
	fprintf( psfile, "%f %f t1srlineto\n", dx1*up, dy1*up);
#endif
      B = Loc(CharSpace, dx1, dy1);
      path = Join(path, Line(B));

      /* 3. Check and handle ending node */
      linkNode( i, PATH_END, PATH_RIGHT);

      break;

    case PPOINT_BEZIER_B:
      break;
    case PPOINT_BEZIER_C:
      break;
    case PPOINT_BEZIER_D:
      /* handle a bezier segment (given by this and the previous 3 path points)! */

      /* 1. Check and handle starting node */
      linkNode( i-3, PATH_START, PATH_RIGHT);

      /* 2. Draw curve based on ideal point locations */
#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "RP:  Curve from PP %ld to PP %ld to PP %ld to PP %ld\n",
	       i-3, i-2, i-1, i);
#endif
      dx1  = ppoints[i-2].x + ppoints[i-2].dxir - (ppoints[i-3].x + ppoints[i-3].dxnr);
      dy1  = ppoints[i-2].y + ppoints[i-2].dyir - (ppoints[i-3].y + ppoints[i-3].dynr);
      dx2  = ppoints[i-1].x + ppoints[i-1].dxir - (ppoints[i-2].x + ppoints[i-2].dxir);
      dy2  = ppoints[i-1].y + ppoints[i-1].dyir - (ppoints[i-2].y + ppoints[i-2].dyir);
      dx3  = ppoints[i].x +   ppoints[i].dxpr   - (ppoints[i-1].x + ppoints[i-1].dxir);
      dy3  = ppoints[i].y +   ppoints[i].dypr   - (ppoints[i-1].y + ppoints[i-1].dyir);
      
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL )
	fprintf( psfile, "%f %f %f %f %f %f t1srrcurveto\n",
		 dx1*up, dy1*up,
		 dx2*up, dy2*up,
		 dx3*up, dy3*up);
#endif
      IfTrace4((FontDebug), "RRCurveTo %f %f %f %f ",
	       dx1, dy1, dx2, dy2);
      IfTrace2((FontDebug), "%f %f\n", dx3, dy3);
      B = Loc(CharSpace, dx1, dy1);
      C = Loc(CharSpace, dx2, dy2);
      D = Loc(CharSpace, dx3, dy3);
    
      C = Join(C, Dup(B));
      D = Join(D, Dup(C));
      path = Join(path, Bezier(B, C, D));

      /* 3. Check and handle starting node */
      linkNode( i, PATH_END, PATH_RIGHT);

      break;

      
    case PPOINT_CLOSEPATH:
#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "RP:  ClosePath command ignored\n");
#endif
      
      break;

    default:
      break;
      
    }
    ++i;
  }

  /********************************************************************************
   ********************************************************************************
   ***** 
   ***** Close right path
   ***** 
   ********************************************************************************
   ********************************************************************************/

  if ( subpathclosed != 0 ) {
    /* We are stroking an outline font to be filled */ 
    if ( closepathatfirst == 0 ) {
      /* Because of the concavity issue, we may not simply use
	 the closepath operator here. Instead we have to manage a possible
	 prolongation manually if the closepath would cause a line segment. */

      /* 1. Check and handle starting node */
      linkNode( lastind, PATH_START, PATH_RIGHT);

      /* 2. Draw ideal isolated line segment */
      dx1  = ppoints[startind].x + ppoints[startind].dxpr - (ppoints[lastind].x + ppoints[lastind].dxnr);
      dy1  = ppoints[startind].y + ppoints[startind].dypr - (ppoints[lastind].y + ppoints[lastind].dynr);
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL )
	fprintf( psfile, "%f %f t1srlineto\n", dx1*up, dy1*up);
#endif
      B = Loc(CharSpace, dx1, dy1);
      path = Join(path, Line(B));

      /* 3. Check and handle ending node */
      linkNode( startind, PATH_END, PATH_RIGHT);

    } /* if ( closepathatfirst == 0) */

    /* Now close path formally. Anyhow, this won't cause a line segment! */
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL ) {
      fprintf( psfile, "t1sclosepath\n");
    }
#endif
    tmpseg = Phantom(path);
    path = ClosePath(path);
    path = Join(Snap(path), tmpseg);

    
    /********************************************************************************
     ********************************************************************************
     ***** 
     ***** Stepping to beginning of left path
     ***** 
     ********************************************************************************
     ********************************************************************************/
    
    /* If curve is concave at the subpath's starting point, the location is onCurve
       and the left path is convex, there. Conversely, if the curve is convex, the
       location is at the right intersection point and the left path will be concave
       so that the initial location must be onCurve. Hence, for both cases, we have
       to translate back once the intersection shift.

       If the curve is straight at the starting point, we directly jump from the right
       intersection point ot he left intersection point.
    */
    if ( (ppoints[startind].shape == CURVE_CONCAVE) ||
	 (ppoints[startind].shape == CURVE_CONVEX) ) { 
      dx1 = - ppoints[startind].dxir;
      dy1 = - ppoints[startind].dyir;
    }
    else {
      dx1 = - 2.0 * ppoints[startind].dxir;
      dy1 = - 2.0 * ppoints[startind].dyir;
    }

#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1srmoveto\n", dx1*up, dy1*up);
#endif
    B = Loc(CharSpace, dx1, dy1);
    path = Join(path, B);
  } /* if ( subpathclose != 0 */
  else {
    /* We have a stroked font. In this case, a line segment has to be drawn */
    if ( (ppoints[stopind].shape == CURVE_CONCAVE) ||
	 (ppoints[stopind].shape == CURVE_CONVEX) ) { 
      dx1 = - ppoints[stopind].dxir;
      dy1 = - ppoints[stopind].dyir;
    }
    else {
      dx1 = - 2.0 * ppoints[stopind].dxir;
      dy1 = - 2.0 * ppoints[stopind].dyir;
    }

#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1srlineto\n", dx1*up, dy1*up);
#endif
    B = Loc(CharSpace, dx1, dy1);
    path = Join(path, Line(B));
    
  }
  
  
  /********************************************************************************
   ********************************************************************************
   ***** 
   ***** Construction of left path
   ***** 
   ********************************************************************************
   ********************************************************************************/
  
  /* Create left path. This is somewhat more complicated, because the
     order/direction has to be exchanged. */
#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr, "Constructing LeftPath: stopind=%ld, lastind=%ld, closepathatfirst=%d\n",
	   stopind, lastind, closepathatfirst);
#endif
  for ( i=stopind; i>=startind; ) {
    if ( subpathclosed != 0 ) {
      /* closed subpath --> filled font */
      if ( i == stopind ) {
	ip   = startind;
	if ( (closepathatfirst != 0) )
	  type = ppoints[ip].type;
	else
	  type = PPOINT_NONE;
      }
      else if ( i == startind ) {
	ip   = startind + 1;
	type = ppoints[ip].type;
      }
      else {
	ip   = i + 1;
	type = ppoints[ip].type;
      }
    }
    else {
      /* open subpath --> stroked font */
      type   = ppoints[i].type;
      in     = i - 1;
    }

    /* Step through path in inverted direction.
       Note: - ip is the index of the starting point, i the index of the
               ending point of the current segment.
             - If the path point is flagged "concave", then this reverts into
               "convex" in the left path and vice versa!
	     - there is an index shift of 1 between closed and open subpaths.
    */
    switch ( type ) {
    case PPOINT_MOVE:
      
      break;
      
    case PPOINT_LINE:

      /* handle a line segment */
      if ( subpathclosed != 0 ) {
	segendind    = i;
	segstartind  = ip;
      }
      else {
	segstartind  = i;
	segendind    = in;
      }
      
      /* 1. Check and handle starting node */
      linkNode( segstartind, PATH_START, PATH_LEFT);

      /* 2. Draw ideal isolated line segment */
#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "LP:  Line from point %ld to %ld\n", segstartind, segendind);
#endif
      dx1  = ppoints[segendind].x - ppoints[segendind].dxnr -
	(ppoints[segstartind].x - ppoints[segstartind].dxpr);
      dy1  = ppoints[segendind].y - ppoints[segendind].dynr -
	(ppoints[segstartind].y - ppoints[segstartind].dypr);
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL )
	fprintf( psfile, "%f %f t1srlineto\n", dx1*up, dy1*up);
#endif
      B = Loc(CharSpace, dx1, dy1);
      path = Join(path, Line(B));

      /* 3. Check and handle ending node */
      linkNode( segendind, PATH_END, PATH_LEFT);

      break;

      
    case PPOINT_BEZIER_B:
      break;

    case PPOINT_BEZIER_C:
      break;

    case PPOINT_BEZIER_D:
      /* handle a bezier segment (given by this and the previous 3 path points)!
	 For bezier segments, we may not simply apply the intersection of previous
	 and next candidate because that would damage the curve's layout. Instead,
	 in cases where the candidate produced by intersection is not identical to
	 the ideal point, we prolongate and link the distance with a line segment.
      */

      /* 1. Check and handle starting node */
      linkNode( ip, PATH_START, PATH_LEFT);

      /* 2. Draw ideal curve segment */
#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "LP:  Curve from PP %ld to PP %ld to PP %ld to PP %ld\n",
	       ip, ip-1, ip-2, ip-3);
#endif
      /* Use ideal point locations for curve at starting and ending point: */
      dx1  = ppoints[ip-1].x - ppoints[ip-1].dxir - (ppoints[ip].x   - ppoints[ip].dxpr);
      dy1  = ppoints[ip-1].y - ppoints[ip-1].dyir - (ppoints[ip].y   - ppoints[ip].dypr);
      dx2  = ppoints[ip-2].x - ppoints[ip-2].dxir - (ppoints[ip-1].x - ppoints[ip-1].dxir);
      dy2  = ppoints[ip-2].y - ppoints[ip-2].dyir - (ppoints[ip-1].y - ppoints[ip-1].dyir);
      dx3  = ppoints[ip-3].x - ppoints[ip-3].dxnr - (ppoints[ip-2].x - ppoints[ip-2].dxir);
      dy3  = ppoints[ip-3].y - ppoints[ip-3].dynr - (ppoints[ip-2].y - ppoints[ip-2].dyir);

#ifdef DUMPDEBUGPATH
      if ( psfile != NULL )
	fprintf( psfile, "%f %f %f %f %f %f t1srrcurveto\n",
		 dx1*up, dy1*up,
		 dx2*up, dy2*up,
		 dx3*up, dy3*up);
#endif
      IfTrace4((FontDebug), "RRCurveTo %f %f %f %f ",
	       dx1, dy1, dx2, dy2);
      IfTrace2((FontDebug), "%f %f\n", dx3, dy3);
      B = Loc(CharSpace, dx1, dy1);
      C = Loc(CharSpace, dx2, dy2);
      D = Loc(CharSpace, dx3, dy3);
    
      C = Join(C, Dup(B));
      D = Join(D, Dup(C));
      path = Join(path, Bezier(B, C, D));

      /* 3. Check and handle ending node */
      linkNode( ip-3, PATH_END, PATH_LEFT);

      break;

      
    case PPOINT_CLOSEPATH:
      
      /* Handle a ClosePath segment, if it had
	 caused a line segment. Hence, actually, we handle
	 a line segment here. */
      if ( closepathatfirst == 1 ) {
	/* ignore this command */
	break;
      }

      /* 1. Check and handle starting node */
      linkNode( startind, PATH_START, PATH_LEFT);

      /* 2. Draw ideal isolated line segment */
#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "LP:  Inverted ClosePath from point %ld to %ld\n", startind, lastind);
#endif
      if ( subpathclosed != 0 ) {
	dx1  = ppoints[lastind].x - ppoints[lastind].dxnr - (ppoints[startind].x - ppoints[startind].dxpr);
	dy1  = ppoints[lastind].y - ppoints[lastind].dynr - (ppoints[startind].y - ppoints[startind].dypr);
      }
      else {
	dx1  = -(ppoints[i].x - ppoints[i].dxnr - (ppoints[ip].x - ppoints[ip].dxpr));
	dy1  = -(ppoints[i].y - ppoints[i].dynr - (ppoints[ip].y - ppoints[ip].dypr));
      }
      
#ifdef DUMPDEBUGPATH
      if ( psfile != NULL )
	fprintf( psfile, "%f %f t1srlineto\n", dx1*up, dy1*up);
#endif
      B = Loc(CharSpace, dx1, dy1);
      path = Join(path, Line(B));

      /* 3. Check and handle ending node */
      linkNode( lastind, PATH_END, PATH_LEFT);
      
      break;
      
    default:
      break;
      
    }
    --i;
  }

#ifdef DUMPDEBUGPATH
  if ( psfile != NULL ) {
    fprintf( psfile, "t1sclosepath\n");
  }
#endif
  tmpseg = Phantom(path);
  path = ClosePath(path);
  path = Join(Snap(path), tmpseg);
  
  
  /********************************************************************************
   ********************************************************************************
   ***** 
   ***** Move to final position
   ***** 
   ********************************************************************************
   ********************************************************************************/
  
  /* Step to back to starting point of this subpath. If closepathatfirst==0, the
     final closepath caused a line segment. In this case, we first have to step
     back that segment and proceed from this point. */
  if ( ppoints[startind].shape == CURVE_CONVEX ) {
    /* In this case, left path is concave and the current location is at
       the onCurve point */
    dx1  = 0.0;
    dy1  = 0.0;
  }
  else {
    /* OK, it seems to be the intersection point */
    dx1  = ppoints[startind].dxir;
    dy1  = ppoints[startind].dyir;
  }
  /* We are now onCurve. If necessary step to the point where the closepath
     appeared. */
  if ( closepathatfirst == 0 ) {
    dx1 += ppoints[lastind].x - ppoints[startind].x;
    dy1 += ppoints[lastind].y - ppoints[startind].y;
  }

  
#ifdef DUMPDEBUGPATH
  if ( psfile != NULL )
    fprintf( psfile, "%f %f t1srmoveto\n", dx1*up, dy1*up);
#endif
  B = Loc(CharSpace, dx1, dy1);
  path = Join(path, B);

  return;
  
}



/* Compute distance from OnCurve-points to their neighbouring points, fill in
   the respective entries dist2prev and dist2next in the ppoints[] structures
   and return the index of the last point in the current subpath which has
   a location different from the starting point of the subpath. */
static long computeDistances( long startind, long stopind, int subpathclosed)
{
  long   lastind       = 0;
  double dx            = 0.0;
  double dy            = 0.0;
  long   i             = 0;
  int    neighboured   = 0;


  /* Handle first point as a special case */
  /* distance to previous point. First, get index of previous point. */
  lastind = stopind;

  if ( subpathclosed != 0 ) {
    if ( (ppoints[startind].x == ppoints[stopind].x) &&
	 (ppoints[startind].y == ppoints[stopind].y) ) {
      while ( (ppoints[lastind].x == ppoints[stopind].x) &&
	      (ppoints[lastind].y == ppoints[stopind].y))
	--lastind;
    }
    else {
      lastind = stopind - 1;
    }
  }
  
#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr,
	   "computeDistance(): startind=%ld stopind=%ld, lastind=%ld, start.x=%f, start.y=%f, last.x=%f, last.y=%f\n",
	   startind, stopind, lastind, ppoints[startind].x, ppoints[startind].y,
	   ppoints[lastind].x, ppoints[lastind].y);
#endif
  
  dx = ppoints[startind].x - ppoints[lastind].x;
  dy = ppoints[startind].y - ppoints[lastind].y;
  ppoints[startind].dist2prev = sqrt( dx*dx + dy*dy );
  
  /* distance to next point */
  dx = ppoints[startind+1].x - ppoints[startind].x;
  dy = ppoints[startind+1].y - ppoints[startind].y;
  ppoints[startind].dist2next = sqrt( dx*dx + dy*dy );
  
#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr,
	   "Pre: Distance at point %ld: Prev=%f Next=%f\n",
	   startind, ppoints[startind].dist2prev, ppoints[startind].dist2next);
#endif
  
  for ( i = startind+1; i < lastind; i++ ) {
    if ( (ppoints[i].type == PPOINT_MOVE) ||
	 (ppoints[i].type == PPOINT_LINE) ||
	 (ppoints[i].type == PPOINT_BEZIER_D) ) {
      if ( neighboured ) {
	ppoints[i].dist2prev = ppoints[i-1].dist2next;
      }
      else {
	/* distance to previous point */
	dx = ppoints[i].x - ppoints[i-1].x;
	dy = ppoints[i].y - ppoints[i-1].y;
	/* Take care of degenerated curves */
	if ( (dx == 0.0) && (dy == 0.0) ) {
	  dx = ppoints[i].x - ppoints[i-2].x;
	  dy = ppoints[i].y - ppoints[i-2].y;
	  if ( (dx == 0.0) && (dy == 0.0) ) {
	    dx = ppoints[i].x - ppoints[i-3].x;
	    dy = ppoints[i].y - ppoints[i-3].y;
	  }
	}
	ppoints[i].dist2prev = sqrt( dx*dx + dy*dy );
      }
      /* distance to next point */
      dx = ppoints[i+1].x - ppoints[i].x;
      dy = ppoints[i+1].y - ppoints[i].y;
      /* Take care of degenerated curves */
      if ( (dx == 0.0) && (dy == 0.0) ) {
	dx = ppoints[i+2].x - ppoints[i].x;
	dy = ppoints[i+2].y - ppoints[i].y;
	if ( (dx == 0.0) && (dy == 0.0) ) {
	  dx = ppoints[i+3].x - ppoints[i].x;
	  dy = ppoints[i+3].y - ppoints[i].y;
	}
      }
      ppoints[i].dist2next = sqrt( dx*dx + dy*dy );
      neighboured = 1;
#ifdef DEBUG_OUTLINE_SURROUNDING
      fprintf( stderr, "     Distance at point %ld: Prev=%f Next=%f\n",
	       i, ppoints[i].dist2prev, ppoints[i].dist2next);
#endif
    }
    else {
      neighboured = 0;
    }
    
  }
  /* We still have to handle the last point */
  /* distance to previous point */
  dx = ppoints[lastind].x - ppoints[lastind-1].x;
  dy = ppoints[lastind].y - ppoints[lastind-1].y;
  /* Take care of degenerated curves */
  if ( (dx == 0.0) && (dy == 0.0) ) {
    dx = ppoints[lastind].x - ppoints[lastind-2].x;
    dy = ppoints[lastind].y - ppoints[lastind-2].y;
    if ( (dx == 0.0) && (dy == 0.0) ) {
      dx = ppoints[lastind].x - ppoints[lastind-3].x;
      dy = ppoints[lastind].y - ppoints[lastind-3].y;
    }
  }
  ppoints[lastind].dist2prev = sqrt( dx*dx + dy*dy );
  /* distance to next point */
  ppoints[lastind].dist2next = ppoints[startind].dist2prev;
#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr, "End: Distance at point %ld: Prev=%f Next=%f\n",
	   lastind, ppoints[lastind].dist2prev, ppoints[lastind].dist2next);
#endif
  
  return lastind;
  
}



/*

 */
static long handleNonSubPathSegments( long pindex)
{

  /* handle the different segment types in a switch-statement */
  switch ( ppoints[pindex].type ) {

  case PPOINT_SBW:
#ifdef DUMPDEBUGPATH
  if ( psfile != NULL )
    fprintf( psfile, "%f %f %f %f t1sbw\n",
	     ppoints[pindex].x*up, ppoints[pindex].y*up,   /* sidebearings */
	     ppoints[pindex].ax*up, ppoints[pindex].ay*up  /* escapements  */
	     );
#endif
    path = Join(path, Loc(CharSpace, ppoints[pindex].x, ppoints[pindex].y));
    return 1;
    break;
    

  case PPOINT_ENDCHAR:
    /* Perform a Closepath just in case the command was left out */
    path = ClosePath(path);
    
    /* Set character width / escapement. It is stored in the vars for
       hinted coordinates. */
    path = Join(Snap(path), Loc(CharSpace, ppoints[pindex].ax, ppoints[pindex].ay));
    
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fputs( "t1FinishPage\n", psfile);
#endif
    return 1;
    break;
    

  case PPOINT_SEAC:
    /* return to origin of accent */
    apath = Snap(path);
    /* reset path to NULL */
    path  = NULL;
    return 1;
    break;
    
    
  default:
    /* not handled, return 0! */
    ;
  }
  
  return 0;
  
}



/* Transform a path point according to the path's incoming angle, the path's
   outgoing angle and the parameter strokewidth. The computation is based on
   simple geometric considerations and makes use of the distance from the
   current point to the previous point and the next point respectively.

   Generally, each link to a path point induces its own candidate by simply
   widening the respective link orthogonally to strokewidth/2. This yields
   two displacement vectors (dx,dy) for the link from the previous point to the
   point under consideration (dxp, dyp) and and for the link from the current
   point to the next point (dxn, dyn).

   Later on, the two candidates are used to compute the resulting displacement
   as the intersection of the prolongated lines from before and behind the
   current point.

   Additionally, check whether the curve is concave or convex at this point.
   This is required for prolongation in the context of stroking.
*/
static void transformOnCurvePathPoint( double strokewidth,
				       long prevind, long currind, long nextind)
{
  double distxp;
  double distyp;
  double distxn;
  double distyn;
  double det;

  /*
  distxp =  (ppoints[currind].y - ppoints[prevind].y);
  distyp = -(ppoints[currind].x - ppoints[prevind].x);
  distxn =  (ppoints[nextind].y - ppoints[currind].y);
  distyn = -(ppoints[nextind].x - ppoints[currind].x);

  ppoints[currind].dxpr = distxp * strokewidth * 0.5 / ppoints[currind].dist2prev;
  ppoints[currind].dypr = distyp * strokewidth * 0.5 / ppoints[currind].dist2prev;

  ppoints[currind].dxnr = distxn * strokewidth * 0.5 / ppoints[currind].dist2next;
  ppoints[currind].dynr = distyn * strokewidth * 0.5 / ppoints[currind].dist2next;
  */
  /* Note: When computing transformations of OnCurve points, we consider two
           special cases:

	   1) The OnCurve beginning or end point is equal to the neighboring
	      control point of a Bezier-Segment.

	   2) This holds for beginning *and* end point. In this case the curve
	      degenerates to a straight lines.

	   Although this is deprecated by Adobe, fonts that use such constructions
	   exist (e.g.m lower case 'n' of Univers 55). However, we do not care
	   for segments that do not any escapement at all!
  */
  
  distxp =  (ppoints[currind].y - ppoints[prevind].y);
  distyp = -(ppoints[currind].x - ppoints[prevind].x);
  if ( (distxp == 0.0) && (distyp == 0.0) ) {
    distxp =  (ppoints[currind].y - ppoints[prevind-1].y);
    distyp = -(ppoints[currind].x - ppoints[prevind-1].x);
    if ( (distxp == 0.0) && (distyp == 0.0) ) {
      distxp =  (ppoints[currind].y - ppoints[prevind-2].y);
      distyp = -(ppoints[currind].x - ppoints[prevind-2].x);
    }
  }
  ppoints[currind].dxpr = distxp * strokewidth * 0.5 / ppoints[currind].dist2prev;
  ppoints[currind].dypr = distyp * strokewidth * 0.5 / ppoints[currind].dist2prev;
  
  distxn =  (ppoints[nextind].y - ppoints[currind].y);
  distyn = -(ppoints[nextind].x - ppoints[currind].x);
  if ( (distxn == 0.0) && (distyn == 0.0) ) {
    distxn =  (ppoints[nextind+1].y - ppoints[currind].y);
    distyn = -(ppoints[nextind+1].x - ppoints[currind].x);
    if ( (distxn == 0.0) && (distyn == 0.0) ) {
      distxn =  (ppoints[nextind+2].y - ppoints[currind].y);
      distyn = -(ppoints[nextind+2].x - ppoints[currind].x);
    }
  }
  ppoints[currind].dxnr = distxn * strokewidth * 0.5 / ppoints[currind].dist2next;
  ppoints[currind].dynr = distyn * strokewidth * 0.5 / ppoints[currind].dist2next;
  
  /* Consider determinant of the two tangent vectors at this node in order to
     decide whether the curve is convex or cancave at this point. */
  if ( (det = ((distxp * distyn) - (distxn * distyp))) < 0.0 ) {
    /* curve turns to the right */
    ppoints[currind].shape = CURVE_CONCAVE;
  }
  else if ( det > 0.0 ) {
    /* curve turns to the left */
    ppoints[currind].shape = CURVE_CONVEX;
  }
  else {
    /* curve is straight */
    ppoints[currind].shape = CURVE_STRAIGHT;
  }
  
  return;
}


/* Compute a displacement for offCurve points, that is, for Bezier B and C points.
   
   This computation is not as simple as it might appear at a first glance and,
   depending on the actual curve parameters and the parameter strokewidth, it might
   be necessary to subdivide the curve. My mathematical background is not actually
   reliable in this context but it seems that in particular the angle that the curve
   runs through is important in this context. Since the Adobe Type 1 recommendations
   on font design include a rule which states that curves' end points should be located
   at extreme values, and consequently, that the angle of a curve segment should not
   be larger than 90 degrees, I have decided not to implement curve subdivision. This
   might lead to some deviations if fonts do not adhere to the Adobe recommendations.
   Anyways, I have never seen such fonts.

   This function is called for Bezier_B points and computes displacements for the B
   and C points at once. Fortunately, index cycling cannot happen here.

   The new Bezier B' and C' points can be considered as four degrees of freedom and we have
   to find 4 equations to be able to compute them.

   1) We require the tangents slope at point A' to be identical to the slope at the
      point A of the ideally thin mathematical curve.

   2) The same holds for the tangents slope at point D' with respect to point D.

   3) We compute the following points

      P1:       Equally subdivides the line A - B
      P2:       Equally subdivides the line B - C
      P3:       Equally subdivides the line C - D

      P4:       Equally subdivides the line P1 - P2
      P5:       Equally subdivides the line P1 - P3

      P6:       Equally subdivides the line P4 - P5

      This latter point is part of the curve and, moreover, the line P4 - P5 is
      tangent to the curve at that point.
      From this point, we compute a displacement for P6, orthogonally to the curve
      at that point and with length strokewidth/2. The resulting point is part of
      the delimiting path that makes up the thick curve.

   4) We require that the tangent's slope at P6' equals the tangents slope at P6.

   Then, under certain further constraints as mentioned above, we compute the points
   B' and C' making use of the points A' and D' which have been transformed as onCurve
   points. By definition, for offCurve points, there is only one candidate.

 */
static void transformOffCurvePathPoint( double strokewidth, long currind)
{
  double diameter;
  double dx;
  double dy;
  
  /* points defining the curve */
  double pax;
  double pay;
  double pbx;
  double pby;
  double pcx;
  double pcy;
  double pdx;
  double pdy;
  
  /* auxiliary points from iterative Bezier construction */
  double p1x;
  double p1y;
  double p2x;
  double p2y;
  double p3x;
  double p3y;
  double p4x;
  double p4y;
  double p5x;
  double p5y;
  double p6x;
  double p6y;
  
  /* already displaced / shifted onCurve points and the ones we are going
     to compute. */
  double paxs;
  double pays;
  double pbxs;
  double pbys;
  double pcxs;
  double pcys;
  double pdxs;
  double pdys;

  /* The normal vector on the curve at t=1/2 */
  double nabs;
  double nx;
  double ny;

  /* some variables for computations at point B' */
  double bloc1x;         
  double bloc1y;
  double bdir1x;
  double bdir1y;
  double bloc2x;
  double bloc2y;
  double bdir2x;
  double bdir2y;
  double bdet;
  double binvdet;
  double binvdir1x;
  double binvdir1y; /**/
  double binvdir2x;
  double binvdir2y; /**/
  double bmu;
  double bnu; /**/

  /* some variables for computations at point C' */
  double cloc1x;         
  double cloc1y;
  double cdir1x;
  double cdir1y;
  double cloc2x;
  double cloc2y;
  double cdir2x;
  double cdir2y;
  double cdet;
  double cinvdet;
  double cinvdir1x;
  double cinvdir1y; /**/
  double cinvdir2x;
  double cinvdir2y; /**/
  double cmu;
  double cnu; /**/
  
  diameter = strokewidth * 0.5;
  
  pax = ppoints[currind-1].x;
  pay = ppoints[currind-1].y;
  pbx = ppoints[currind].x;
  pby = ppoints[currind].y;
  pcx = ppoints[currind+1].x;
  pcy = ppoints[currind+1].y;
  pdx = ppoints[currind+2].x;
  pdy = ppoints[currind+2].y;
  
  p1x = (pax + pbx) * 0.5;
  p1y = (pay + pby) * 0.5;
  p2x = (pbx + pcx) * 0.5;
  p2y = (pby + pcy) * 0.5;
  p3x = (pcx + pdx) * 0.5;
  p3y = (pcy + pdy) * 0.5;
  p4x = (p1x + p2x) * 0.5;
  p4y = (p1y + p2y) * 0.5;
  p5x = (p2x + p3x) * 0.5;
  p5y = (p2y + p3y) * 0.5;
  p6x = (p4x + p5x) * 0.5;
  p6y = (p4y + p5y) * 0.5;

  
  /* We start by computing the shift of the onCurve points. It is not possible
     to use  dxr / dyr of the ppoints-stucture entries. These values have been
     computed by intersection of both links to a path point. Here we need the
     ideal points of the thick isolated curve segment. We are aware that for
     Bezier splines, control point and OnCurve point might be identical! */
  dx   =   (ppoints[currind].y - ppoints[currind-1].y) * strokewidth * 0.5 / ppoints[currind-1].dist2next;
  dy   = - (ppoints[currind].x - ppoints[currind-1].x) * strokewidth * 0.5 / ppoints[currind-1].dist2next;
  if ( (dx == 0.0) && (dy == 0.0) ) {
    /* Bezier_A and Bezier_B are identical */
    dx   =   (ppoints[currind+1].y - ppoints[currind-1].y) * strokewidth * 0.5 / ppoints[currind-1].dist2next;
    dy   = - (ppoints[currind+1].x - ppoints[currind-1].x) * strokewidth * 0.5 / ppoints[currind-1].dist2next;
  }
  paxs = ppoints[currind-1].x + dx;
  pays = ppoints[currind-1].y + dy;
  dx   =   (ppoints[currind+2].y - ppoints[currind+1].y) * strokewidth * 0.5 / ppoints[currind+2].dist2prev;
  dy   = - (ppoints[currind+2].x - ppoints[currind+1].x) * strokewidth * 0.5 / ppoints[currind+2].dist2prev;
  if ( (dx == 0.0) && (dy == 0.0) ) {
    /* Bezier_C and Bezier_D are identical */
    dx   =   (ppoints[currind+2].y - ppoints[currind].y) * strokewidth * 0.5 / ppoints[currind+2].dist2prev;
    dy   = - (ppoints[currind+2].x - ppoints[currind].x) * strokewidth * 0.5 / ppoints[currind+2].dist2prev;
  }
  pdxs = ppoints[currind+2].x + dx;
  pdys = ppoints[currind+2].y + dy;

  /* Next, we compute the right side normal vector at the curve point t=1/2,
   that is, at P6. */
  nabs    = diameter / sqrt(((p5x - p4x) * (p5x - p4x)) + ((p5y - p4y) * (p5y - p4y)));
  nx      = (p5y - p4y) * nabs;
  ny      = (p4x - p5x) * nabs;

#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr, "transformOffCurvePathPoint():\n");
  fprintf( stderr, "    A=(%f,%f), B=(%f,%f), C=(%f,%f), D=(%f,%f)\n",
	   pax, pay, pbx, pby, pcx, pcy, pdx, pdy);
  fprintf( stderr, "%% DebugInfo: Curve from PP %ld ... PP %ld ... PP %ld ... PP %ld. StrokeWidth=%f.\n",
	   currind-1, currind, currind+1, currind+2, strokewidth);
  fprintf( stderr, "/xa %f def\n/ya %f def\n/xb %f def\n/yb %f def\n/xc %f def\n/yc %f def\n/xd %f def\n/yd %f def\n",
	   pax, pay, pbx, pby, pcx, pcy, pdx, pdy);
  fprintf( stderr, "    As=(%f,%f), Ds=(%f,%f)\n",
	   paxs, pays, pdxs, pdys);
  fprintf( stderr, "    p6=(%f,%f)\n", p6x, p6y);
  fprintf( stderr, "    nx=%f, ny=%f, nabs=%f\n", nx, ny, nabs);
  fprintf( stderr, "    p6s=(%f,%f)\n", p6x+nx, p6y+ny);
#endif

  /* Compute two lines whose intersection will define point B' */
  bloc1x = (4.0 * (nx + p6x) - (2 * paxs) + pdxs) / 3.0;
  bloc1y = (4.0 * (ny + p6y) - (2 * pays) + pdys) / 3.0;
  bdir1x = pcx + pdx - pax - pbx;
  bdir1y = pcy + pdy - pay - pby;
  bloc2x = paxs;
  bloc2y = pays;
  bdir2x = pbx - pax;
  bdir2y = pby - pay;
  bdet   = (bdir2x * bdir1y) - (bdir2y * bdir1x);
  
#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr, "    bloc1x=%f, bloc1y=%f, bloc2x,=%f bloc2y=%f\n",
	   bloc1x, bloc1y, bloc2x, bloc2y);
  fprintf( stderr, "    bdir1x=%f, bdir1y=%f, bdir2x,=%f bdir2y=%f\n",
	   bdir1x, bdir1y, bdir2x, bdir2y);
#endif

  /* Switch if determinant is zero; we then actually have a straight line */
  if ( fabs(bdet) < 0.001 ) {
    pbxs   = pbx + nx;
    pbys   = pby + ny;
    bmu    = 0.0;
    bnu    = 0.0;
  }
  else {
    /* Calculate required part of inverse matrix */
    binvdet   =   1.0 / bdet;
    binvdir2x =   bdir1y * binvdet;
    binvdir2y = - bdir2y * binvdet; /**/
    binvdir1x = - bdir1x * binvdet;
    binvdir1y =   bdir2x * binvdet; /**/

    /* Calculate coefficient that describes intersection */
    bmu       =   (binvdir2x * (bloc1x - bloc2x)) + (binvdir1x * (bloc1y - bloc2y));
    bnu       =   (binvdir2y * (bloc1x - bloc2x)) + (binvdir1y * (bloc1y - bloc2y)); /**/

    /* Calculate B' */
    pbxs      =   bloc2x + (bmu * bdir2x);
    pbys      =   bloc2y + (bmu * bdir2y);
  }

  /* Compute two lines whose intersection will define point C' */
  cloc1x = (4.0 * (nx + p6x) - (2 * pdxs) + paxs) / 3.0;
  cloc1y = (4.0 * (ny + p6y) - (2 * pdys) + pays) / 3.0;
  cdir1x = bdir1x;
  cdir1y = bdir1y;
  cloc2x = pdxs;
  cloc2y = pdys;
  cdir2x = pcx - pdx;
  cdir2y = pcy - pdy;
  cdet   = (cdir2x * cdir1y) - (cdir2y * cdir1x);

#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr, "    cloc1x=%f, cloc1y=%f, cloc2x,=%f cloc2y=%f\n",
	   cloc1x, cloc1y, cloc2x, cloc2y);
  fprintf( stderr, "    cdir1x=%f, cdir1y=%f, cdir2x,=%f cdir2y=%f\n",
	   cdir1x, cdir1y, cdir2x, cdir2y);
#endif

  /* Switch if determinant is zero; we then actually have a straight line */
  if ( fabs( cdet) < 0.001 ) {
    pcxs   = pcx + nx;
    pcys   = pcy + ny;
    cmu    = 0.0;
    cnu    = 0.0;
  }
  else {
    /* Calculate required part of inverse matrix */
    cinvdet   =   1.0 / cdet;
    cinvdir2x =   cdir1y * cinvdet;
    cinvdir2y = - cdir2y * cinvdet; /**/
    cinvdir1x = - cdir1x * cinvdet;
    cinvdir1y =   cdir2x * cinvdet; /**/

    /* Calculate coefficient that describes intersection */
    cmu       =   (cinvdir2x * (cloc1x - cloc2x)) + (cinvdir1x * (cloc1y - cloc2y));
    cnu       =   (cinvdir2y * (cloc1x - cloc2x)) + (cinvdir1y * (cloc1y - cloc2y)); /**/

    /* Calculate C' */
    pcxs      =   cloc2x + (cmu * cdir2x);
    pcys      =   cloc2y + (cmu * cdir2y);
  }

#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr, "    bdet=%f, cdet=%f, bmu=%f, bnu=%f, cmu=%f, cnu=%f\n",
	   bdet, cdet, bmu, bnu, cmu, cnu);
#endif

  /* Analyse coefficients and decide on numerical stability. If suggesting,
     overwrite, using another relation. Here, we assume that at least the
     solution at *one* end of the curve is stable. */
  if ( bmu < 0.1 ) {
    pbxs = ((8 * (nx + p6x) - paxs - pdxs) / 3.0) - pcxs;
    pbys = ((8 * (ny + p6y) - pays - pdys) / 3.0) - pcys;
  }
  if ( cmu < 0.1 ) {
    pcxs = ((8 * (nx + p6x) - paxs - pdxs) / 3.0) - pbxs;
    pcys = ((8 * (ny + p6y) - pays - pdys) / 3.0) - pbys;
  }
  
  
  /* Store the resulting displacement values in the ppoints-struct so
     they can be used for path construction. We use the "intersect" member
     because in this case nothing is related to "previous" or "next".*/
#ifdef DEBUG_OUTLINE_SURROUNDING
  fprintf( stderr, "    pbx=%f, pbxs=%f, bxshift=%f, pby=%f, pbys=%f, byshift=%f\n",
	   pbx, pbxs, pbxs-pbx, pby, pbys, pbys-pby);
  fprintf( stderr, "    pcx=%f, pcxs=%f, cxshift=%f, pcy=%f, pcys=%f, cyshift=%f\n",
	   pcx, pcxs, pcxs-pcx, pcy, pcys, pcys-pcy);
#endif
  ppoints[currind].dxir    = pbxs - pbx;
  ppoints[currind].dyir    = pbys - pby;
  ppoints[currind+1].dxir  = pcxs - pcx;
  ppoints[currind+1].dyir  = pcys - pcy;

  return;
  
}


static void intersectRight( long index, double halfwidth, long flag)
{
  double r2  = 0.0;
  double det = 0.0;
  double dxprev;
  double dyprev;
  double dxnext;
  double dynext;
  
  
  /* In order to determine the intersection between the two
     prolongations at the path point under consideration, we use
     the Hesse Normal Form, multiplied with r.

     dx * x + dy + y + r^2 = 0

     Here, r is the distance from the origin, that is, from the path point
     under consideration. */

  /* Check for start and ending of non-closed paths */
  if ( flag == INTERSECT_PREVIOUS ) {
    ppoints[index].dxir = ppoints[index].dxpr;
    ppoints[index].dyir = ppoints[index].dypr;
    /* Correct shape to be "straight" at ending point! */
    ppoints[index].shape = CURVE_STRAIGHT;
    return;
  }
  if ( flag == INTERSECT_NEXT ) {
    ppoints[index].dxir = ppoints[index].dxnr;
    ppoints[index].dyir = ppoints[index].dynr;
    /* Correct shape to be "straight" at starting point! */
    ppoints[index].shape = CURVE_STRAIGHT;
    return;
  }

  /* OK, we actually compute an intersection */
  dxprev = ppoints[index].dxpr;
  dyprev = ppoints[index].dypr;
  dxnext = ppoints[index].dxnr;
  dynext = ppoints[index].dynr;

  /* Compute distance square */
  r2 = halfwidth * halfwidth;

  /* Check the determinant. If it is zero, the two lines are parallel
     and also must touch at atleast one location,
     so that there are an infinite number of solutions. In this case,
     we compute the average position and are done. */
  if ( (det = ((dyprev * dxnext) - (dynext * dxprev))) == 0.0 ) {
    ppoints[index].dxir = 0.5 * (dxprev + dxnext);
    ppoints[index].dyir = 0.5 * (dyprev + dynext);
#ifdef DEBUG_OUTLINE_SURROUNDING
    fprintf( stderr, "intersectRight(0): dxprev=%f, dxnext=%f,  dxres=%f, dyprev=%f, dynext=%f, dyres=%f\n",
	     dxprev, dxnext, ppoints[index].dxir, dyprev, dynext, ppoints[index].dyir);
#endif
    return;
  }
  
  /* OK, there seems to be a unique solution, compute it */
  if ( dxprev != 0.0 ) {
    ppoints[index].dyir =  r2 * (dxnext - dxprev) / det;
    ppoints[index].dxir = (r2 - (dyprev * ppoints[index].dyir)) / dxprev; /* - ? */
#ifdef DEBUG_OUTLINE_SURROUNDING
    fprintf( stderr, "intersectRight(1): dxprev=%f, dxnext=%f,  dxres=%f, dyprev=%f, dynext=%f, dyres=%f\n",
	     dxprev, dxnext, ppoints[index].dxir, dyprev, dynext, ppoints[index].dyir);
#endif
  }
  else {
    ppoints[index].dyir = -r2 * (dxprev - dxnext) / det;
    ppoints[index].dxir = (r2 - (dynext * ppoints[index].dyir)) / dxnext; /* - ? */
#ifdef DEBUG_OUTLINE_SURROUNDING
    fprintf( stderr, "intersectRight(2): dxprev=%f, dxnext=%f,  dxres=%f, dyprev=%f, dynext=%f, dyres=%f\n",
	     dxprev, dxnext, ppoints[index].dxir, dyprev, dynext, ppoints[index].dyir);
#endif
  }
  
  return;
     
}



/* linkNode(): Insert prolongation lines at nodes. */
static void linkNode( long index, int position, int orientation)
{
  struct segment* B;
  double dx = 0.0;
  double dy = 0.0;

  if ( orientation == PATH_RIGHT ) {
    /* We are constructing the right hand side path */
    if ( position == PATH_START ) {
      /* We are starting a new segment. Link from current point to ideally
	 next-shifted point of segment. */
      if ( ppoints[index].shape == CURVE_CONCAVE ) {
	/* prolongate from original curve point to ideally next-shifted point */
	dx = ppoints[index].dxnr;
	dy = ppoints[index].dynr;
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "    Right Path Concave at PP %ld. Prolongation from onCurve to ideal: (%f,%f)\n",
		 index, dx, dy);
#endif
      }
      else if ( ppoints[index].shape == CURVE_CONVEX ) {
	/* prolongate from intersecion point to ideally next-shifted point */
	dx = ppoints[index].dxnr - ppoints[index].dxir;
	dy = ppoints[index].dynr - ppoints[index].dyir;
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "RP:  Convex at PP %ld. Prolongation from intersection to ideal: (%f,%f)\n",
		 index, dx, dy);
#endif
      }
    }
    else if ( position == PATH_END ) {
      /* We are ending the current segment. Link from ideally prev-shifted point
	 to the appropriate ending point. */
      if ( ppoints[index].shape == CURVE_CONCAVE ) {
	/* prolongate from ideally prev-shifted point to original curve point. */
	dx = - ppoints[index].dxpr;
	dy = - ppoints[index].dypr;
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "RP:  Concave at PP %ld. Prolongation from ideal to onCurve: (%f,%f)\n",
		 index, dx, dy);
#endif
      }
      else if ( ppoints[index].shape == CURVE_CONVEX ) {
	/* prolongate from ideally prev-shifted point to intersection point. */
	dx = ppoints[index].dxir - ppoints[index].dxpr;
	dy = ppoints[index].dyir - ppoints[index].dypr;
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "RP:  Convex at PP %ld. Prolongation from ideal to intersection: (%f,%f)\n",
		 index, dx, dy);
#endif
      }
    } /* if ( PATH_END ) */
  } /* if ( PATH_RIGHT ) */
  else if ( orientation == PATH_LEFT ) {

    /* We are constructing the left hand side path. Some notions have to be
       reverted (e.g. concavity vs. convexity and next vs. previous)! */
    if ( position == PATH_START ) {
      /* We are starting a new segment. Link from current point to ideally
	 next-shifted point of segment. */
      if ( ppoints[index].shape == CURVE_CONVEX ) {
	/* prolongate from original curve point to ideally next-shifted point.
	   Remember: next --> prev! */
	dx = - (ppoints[index].dxpr);
	dy = - (ppoints[index].dypr);
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "LP:  Concave at PP %ld. Prolongation from onCurve to ideal: (%f,%f)\n",
		 index, dx, dy);
#endif
      }
      else if ( ppoints[index].shape == CURVE_CONCAVE ) {
	/* prolongate from intersecion point to ideally next-shifted point */
	dx = - (ppoints[index].dxpr - ppoints[index].dxir);
	dy = - (ppoints[index].dypr - ppoints[index].dyir);
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "LP:  Convex at PP %ld. Prolongation from intersection to ideal: (%f,%f)\n",
		 index, dx, dy);
#endif
      }
    }/* if ( PATH_START ) */
    else if ( position == PATH_END ) {
      /* We are ending the current segment. Link from ideally prev-shifted point
	 to the appropriate ending point. */
      if ( ppoints[index].shape == CURVE_CONVEX ) {
	/* prolongate from ideally prev-shifted point to original curve point. */
	dx = ppoints[index].dxnr;
	dy = ppoints[index].dynr;
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "LP:  Concave at PP %ld. Prolongation from ideal to onCurve: (%f,%f)\n",
		 index, dx, dy);
#endif
      }
      else if ( ppoints[index].shape == CURVE_CONCAVE ) {
	/* prolongate from ideally prev-shifted point to intersection point. */
	dx = - (ppoints[index].dxir - ppoints[index].dxnr);
	dy = - (ppoints[index].dyir - ppoints[index].dynr);
#ifdef DEBUG_OUTLINE_SURROUNDING
	fprintf( stderr, "LP:  Convex at PP %ld. Prolongation from ideal to intersection: (%f,%f)\n",
		 index, dx, dy);
#endif
      }
    } /* if ( PATH_END ) */
  } /* if ( PATH_LEFT ) */

  if ( (dx != 0.0) || (dy != 0.0) ) {
#ifdef DUMPDEBUGPATH
    if ( psfile != NULL )
      fprintf( psfile, "%f %f t1sprolongate\n", dx*up, dy*up);
#endif
    B = Loc( CharSpace, dx, dy);
    path = Join(path, Line(B));
  }
  
  return;
  
}