summaryrefslogtreecommitdiffstats
path: root/twin/kompmgr/kompmgr.c
blob: 82166766e352ba7ea83dc8d3917cc511aeb7b1ee (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
/*
 * $Id$
 *
 * Copyright © 2003 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, 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 Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD 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.
 */


/* Modified by Matthew Hawn. I don't know what to say here so follow what it
   says above. Not that I can really do anything about it
*/

/* Modified by Dan Doel*/

/* Modified by Timothy Pearson
 *
 * CHANGELOG:
 * http://patchwork.freedesktop.org/patch/1049/	[Add default background color option]		08/11/2011
 * http://patchwork.freedesktop.org/patch/1052/ [Prevent flicker on root pixmap change]		08/11/2011
 * Added SIGUSR1 handler to change process UID	[Prevent flicker on login]			08/12/2011
 * Added ability to write PID of process to home directory					08/14/2011
 * Added SIGUSR2 handler to reload settings     [Prevent flicker on settings change]		08/14/2011
 * Added SIGTERM handler to clean up stale PID files on exit					08/14/2011
 * Added hack to work around ATI fglrx XDamage event generation bugs	[WORK_AROUND_FGLRX]	09/01/2011
 * Redraw root window automatically when X damage events are detected (this fixes xsetroot)	10/23/2011
 *
 * TODO:
 * http://patchwork.freedesktop.org/patch/1053/ [Fix window mapping with re-used window ids]
*/

/*
Version 2.x of xcompmgr, kompmgr changes by Thomas L�bking and Heiko Przybyl
check baghira.sf.net for more infos
*/
#define _VERSION_ 2.02
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <sys/poll.h>
#include <sys/time.h>
#include <sys/types.h>
#include <signal.h>
#include <time.h>
#include <unistd.h>
#include <libgen.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/extensions/Xcomposite.h>
#include <X11/extensions/Xdamage.h>
#include <X11/extensions/Xrender.h>
#include <X11/extensions/shape.h>

#if COMPOSITE_MAJOR > 0 || COMPOSITE_MINOR >= 2
#define HAS_NAME_WINDOW_PIXMAP 1
#endif

#define CAN_DO_USABLE 1

#define WORK_AROUND_FGLRX 1

#define _TOPHEIGHT_(x) ((x >> 24) & 0xff)
#define _RIGHTWIDTH_(x) ((x >> 16) & 0xff)
#define _BOTTOMHEIGHT_(x) ((x >> 8) & 0xff)
#define _LEFTWIDTH_(x) (x & 0xff)

/* #define USE_ENV_HOME 1 */
#define WRITE_PID_FILE 1

#ifndef USE_ENV_HOME
#include <pwd.h>
#endif

typedef enum {
    WINTYPE_DESKTOP,
    WINTYPE_DOCK,
    WINTYPE_TOOLBAR,
    WINTYPE_MENU,
    WINTYPE_UTILITY,
    WINTYPE_SPLASH,
    WINTYPE_DIALOG,
    WINTYPE_NORMAL,
    WINTYPE_DROPDOWN_MENU,
    WINTYPE_POPUP_MENU,
    WINTYPE_TOOLTIP,
    WINTYPE_NOTIFY,
    WINTYPE_COMBO,
    WINTYPE_DND,
    NUM_WINTYPES
} wintype;

typedef struct _ignore {
    struct _ignore	*next;
    unsigned long	sequence;
} ignore;

typedef struct _win {
    struct _win		*next;
    Window		id;
#if HAS_NAME_WINDOW_PIXMAP
    Pixmap		pixmap;
#endif
    XWindowAttributes	a;
    XWindowAttributes	a_prev;
#if CAN_DO_USABLE
    Bool		usable;		    /* mapped and all damaged at one point */
    XRectangle		damage_bounds;	    /* bounds of damage */
#endif
    Bool                isInFade;
    int			mode;
    int			damaged;
    Damage		damage;
    Picture		picture;
    Picture		alphaPict;
    Picture		shadowPict;
    XserverRegion	borderSize;
    XserverRegion	decoRegion;
    XserverRegion	contentRegion;
    XserverRegion	extents;
    unsigned int	preShadeOpacity;
    Picture		shadow;
   /*Picture		alpha;*/
    int			shadow_dx;
    int			shadow_dy;
    int			shadow_width;
    int			shadow_height;
    unsigned int	opacity;
    unsigned int	shadowSize;
    wintype             windowType;
    unsigned long	damage_sequence;    /* sequence when damage was created */
    int                 destroyed;
    Bool		destruct_queued;
    Bool		destruct_requested;
    int			destruct_request_time;
    Bool                shapable; /* this will allow window managers to exclude windows if just the deco is shaped*/
    Bool		shaped;
    XRectangle		shape_bounds;
    XRectangle		shape_bounds_prev;
    unsigned int                 decoHash;
    Picture             dimPicture;

    /* for drawing translucent windows */
    XserverRegion	borderClip;
    struct _win		*prev_trans;

    /* setting whether a window will be transparent to the desktop or the windows below it */
    Bool		show_root_tile;
} win;

typedef struct _conv {
    int	    size;
    double  *data;
} conv;

typedef struct _fade {
    struct _fade	*next;
    win			*w;
    double		cur;
    double		finish;
    double		step;
    void		(*callback) (Display *dpy, win *w, Bool gone);
    Display		*dpy;
    unsigned int			decoHash;
    Bool		gone;
} fade;

struct sigaction usr_action;
sigset_t block_mask;

int		my_exit_code = 3;

win             *list;
fade		*fades;
Display		*dpy;
char	        *display = 0;
int		scr;
Window		root;
Picture		rootPicture;
Picture		rootBuffer;
Picture		blackPicture;
Picture		transBlackPicture;
Picture		rootTile;
XserverRegion	allDamage;
Bool		clipChanged;
#if HAS_NAME_WINDOW_PIXMAP
Bool		hasNamePixmap;
#endif
XRenderColor	fill_color;
int		root_height, root_width;
ignore		*ignore_head, **ignore_tail = &ignore_head;
int		xfixes_event, xfixes_error;
int		damage_event, damage_error;
int		composite_event, composite_error;
int		render_event, render_error;
int		xshape_event, xshape_error;
Bool		synchronize;
int		composite_opcode;
Bool		screen_damaged = False;
Bool            disable_argb = False;

int             shapeEvent;

/* find these once and be done with it */
Atom		opacityAtom;
Atom		shadowAtom;
Atom		shadeAtom;
Atom		shapableAtom;
Atom            decoHashAtom;
Atom            dimAtom;
Atom            deskChangeAtom;
Atom            winTypeAtom;
Atom            winTDETTDAtom;
Atom            winType[NUM_WINTYPES];
double          winTypeOpacity[NUM_WINTYPES];
Bool            winTypeShadow[NUM_WINTYPES];
Bool            winTypeFade[NUM_WINTYPES];

/* opacity property name; sometime soon I'll write up an EWMH spec for it */
#define OPACITY_PROP	"_KDE_WM_WINDOW_OPACITY"
#define SHADOW_PROP	"_KDE_WM_WINDOW_SHADOW"
#define SHADE_PROP	"_KDE_WM_WINDOW_SHADE"
#define SHAPABLE_PROP	"_KDE_WM_WINDOW_SHAPABLE"
#define DECOHASH_PROP	"_KDE_WM_WINDOW_DECOHASH"
#define DIM_PROP	"_KDE_WM_WINDOW_DIM"
#define DESKCHANGE_PROP "_KDE_WM_DESKTOP_CHANGE"

#define TRANSLUCENT	0xe0000000
#define OPAQUE		0xffffffff

conv            *gaussianMap;

#define WINDOW_SOLID	0
#define WINDOW_TRANS	1
#define WINDOW_ARGB	2

#define TRANS_OPACITY	0.75

#define NDEBUG 1
#define DEBUG_REPAINT 0
#define DEBUG_WINDOWS 0
#define DEBUG_EVENTS 0
#define MONITOR_REPAINT 0

#define SHADOWS		1
#define SHARP_SHADOW	0

typedef enum _compMode {
    CompSimple,		/* looks like a regular X server */
    CompServerShadows,	/* use window alpha for shadow; sharp, but precise */
    CompClientShadows	/* use window extents for shadow, blurred */
} CompMode;

static void
determine_mode(Display *dpy, win *w);

static double
get_opacity_percent(Display *dpy, win *w);

static XserverRegion
win_extents (Display *dpy, win *w);

CompMode    compMode = CompSimple;

int	    shadowRadius = 12;
int         shadowOffsetX = 0;
int         shadowOffsetY = 0;
double      shadowOpacity = .75;
XRenderColor shadowColor;

double  fade_in_step =  0.028;
double  fade_out_step = 0.03;
int	fade_delta =	10;
int	fade_time =	0;
Bool	fadeTrans = False;

Bool	autoRedirect = False;

#if WORK_AROUND_FGLRX
Bool	restartOnSigterm = True;
#endif

/* For shadow precomputation */
int            Gsize = -1;
unsigned char *shadowCorner = NULL;
unsigned char *shadowTop = NULL;

XRenderPictFormat* sXRenderFindVisualFormat(Display *dpy, _Xconst Visual *visual)
{
    XRenderPictFormat* format = XRenderFindVisualFormat(dpy,visual);
    if (format)
        return format;
    else
        return XRenderFindStandardFormat (dpy, PictStandardRGB24);
}

int
get_time_in_milliseconds ()
{
    struct timeval  tv;

    gettimeofday (&tv, NULL);
    return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}

void write_pid_file(pid_t pid)
{
#ifdef WRITE_PID_FILE
#ifdef USE_ENV_HOME
    const char *home = getenv("HOME");
#else
    const char *home;
    struct passwd *p;
    p = getpwuid(getuid());
    if (p)
        home = p->pw_dir;
    else
        home = getenv("HOME");
#endif
    const char *filename;
    const char *configfile = "/.kompmgr.pid";
    int n = strlen(home)+strlen(configfile)+1;
    filename = (char*)malloc(n*sizeof(char));
    memset(filename,0,n);
    strcat(filename, home);
    strcat(filename, configfile);

    printf("writing '%s' as pidfile\n\n", filename);

    /* now that we did all that by way of introduction...write the file! */
    FILE *pFile;
    char buffer[255];
    sprintf(buffer, "%d", pid);
    pFile = fopen(filename, "w");
    if (pFile) {
        fwrite(buffer,1,strlen(buffer), pFile);
        fclose(pFile);
    }

    free(filename);
    filename = NULL;
#endif
}

void delete_pid_file()
{
#ifdef WRITE_PID_FILE
#ifdef USE_ENV_HOME
    const char *home = getenv("HOME");
#else
    const char *home;
    struct passwd *p;
    p = getpwuid(getuid());
    if (p)
        home = p->pw_dir;
    else
        home = getenv("HOME");
#endif
    const char *filename;
    const char *configfile = "/.kompmgr.pid"; 
    int n = strlen(home)+strlen(configfile)+1;
    filename = (char*)malloc(n*sizeof(char));
    memset(filename,0,n);
    strcat(filename, home);
    strcat(filename, configfile);

    printf("deleting '%s' as pidfile\n\n", filename);

    /* now that we did all that by way of introduction...delete the file! */
    unlink(filename);

    free(filename);
    filename = NULL;
#endif

#if WORK_AROUND_FGLRX
    if ((my_exit_code == 3) && (restartOnSigterm)) {
        printf("kompmgr lost connection to X server, restarting...\n\r"); fflush(stdout);
        sleep(1);
        char me[2048];
        int chars = readlink("/proc/self/exe", me, sizeof(me));
        me[chars] = 0;
        me[2047] = 0;
	execl(me, basename(me), (char*)NULL);
    }
#endif
}

void handle_siguser (int sig)
{
    int uidnum;
    if (sig == SIGTERM) {
        // Trap this signal and keep running...
        return;
    }
    if (sig == SIGUSR1) {
        char newuid[1024];
#ifndef NDEBUG
        printf("Enter the new user ID:\n\r"); fflush(stdout);
#endif
        char *eof;
        newuid[0] = '\0';
        newuid[sizeof(newuid)-1] = '\0';
        eof = fgets(newuid, sizeof(newuid), stdin);
        uidnum = atoi(newuid);
#ifndef NDEBUG
        printf("Setting kompmgr process uid to %d...\n\r", uidnum); fflush(stdout);
#endif

        my_exit_code=4;
        delete_pid_file();
        my_exit_code=3;
        setuid(uidnum);
        write_pid_file(getpid());

    }
    else {
        uidnum = getuid();
    }
    if ((sig == SIGUSR1) || (sig == SIGUSR2)) {
#ifdef USE_ENV_HOME
        const char *home = getenv("HOME");
#else
        const char *home;
        struct passwd *p;
        p = getpwuid(uidnum);
        if (p)
            home = p->pw_dir;
        else
            home = getenv("HOME");
#endif
        const char *filename;
        const char *configfile = "/.xcompmgrrc";
        int n = strlen(home)+strlen(configfile)+1;
        filename = (char*)malloc(n*sizeof(char));
        memset(filename,0,n);
        strcat(filename, home);
        strcat(filename, configfile);

        loadConfig(filename); /* reload the configuration file */

        free(filename);
        filename = NULL;
    }
}

fade *
find_fade (win *w)
{
    fade    *f;

    for (f = fades; f; f = f->next)
    {
	if (f->w == w)
	    return f;
    }
    return 0;
}

void dequeue_fade (Display *dpy, fade *f)
{
   fade    **prev;
   f->w->isInFade = False;
   f->w->decoHash = f->decoHash;

   for (prev = &fades; *prev; prev = &(*prev)->next)
      if (*prev == f)
      {
         *prev = f->next;
         if (f->callback)
         {
            (*f->callback) (dpy, f->w, f->gone);
         }
         free (f);
         break;
      }
}

void
cleanup_fade (Display *dpy, win *w)
{
    fade *f = find_fade (w);
    if (f)
      dequeue_fade (dpy, f);
}

void
enqueue_fade (Display *dpy, fade *f)
{
    f->w->isInFade = True;
    if (!fades)
      fade_time = get_time_in_milliseconds () + fade_delta;
    f->next = fades;
    fades = f;
}

static void unmap_callback (Display *dpy, win *w, Bool gone);

static void
set_fade (Display *dpy, win *w, double start, double finish, double step,
		void (*callback) (Display *dpy, win *w, Bool gone),
		Bool gone, Bool exec_callback, Bool override, Bool wholeWin)
{
	fade    *f;

	f = find_fade (w);
	if (!f)
	{
		if (start == finish)
			return;
		f = malloc (sizeof (fade));
		f->next = 0;
		f->w = w;
		f->decoHash = w->decoHash;
		f->cur = start;
		enqueue_fade (dpy, f);
	}
	else if(!override)
		return;
	else
	{
		if (exec_callback && f->callback)
			(*f->callback)(dpy, f->w, f->gone);
	}
	if (finish < 0)
		finish = 0;
	if (finish > 1)
		finish = 1;
	f->finish = finish;
	if (f->cur < finish)
		f->step = step;
	else if (f->cur > finish)
		f->step = -step;
	f->gone = gone && (exec_callback || f->callback != unmap_callback);
	f->callback = callback;
	w->opacity = f->cur * OPAQUE;
	if (wholeWin)
		w->decoHash = 0;
#if 0
	printf ("set_fade start %g step %g\n", f->cur, f->step);
#endif
	determine_mode (dpy, w);
	if (w->shadow)
	{
		XRenderFreePicture (dpy, w->shadow);
		w->shadow = None;
                if( w->extents != None )
                    XFixesDestroyRegion( dpy, w->extents );
		w->extents = win_extents (dpy, w);
	}

	/* fading windows need to be drawn, mark them as damaged.
	   when a window maps, if it tries to fade in but it already at the right
	   opacity (map/unmap/map fast) then it will never get drawn without this
	   until it repaints */
	w->damaged = 1;
}

	int
fade_timeout (void)
{
	int now;
	int	delta;
	if (!fades)
		return -1;
	now = get_time_in_milliseconds();
	delta = fade_time - now;
	if (delta < 0)
		delta = 0;
	/*    printf ("timeout %d\n", delta); */
	return delta;
}

	void
run_fades (Display *dpy)
{
	int	    now = get_time_in_milliseconds();
	fade    *f, *next;
	int	    steps;
	Bool    need_dequeue;

#if 0
	printf ("run fades\n");
#endif
	if (fade_time - now > 0)
		return;
	steps = 1 + (now - fade_time) / fade_delta;
        for (next = fades; (f = next); )
	{
		win *w = f->w;
		next = f->next;
		f->cur += f->step * steps;
		if (f->cur >= 1)
			f->cur = 1;
		else if (f->cur < 0)
			f->cur = 0;
#if 0
		printf ("opacity now %g -> %g\n", f->cur, f->finish);
#endif
		w->opacity = f->cur * OPAQUE;
		need_dequeue = False;
		if (f->step > 0)
		{
			if (f->cur >= f->finish)
			{
				w->opacity = f->finish*OPAQUE;
				need_dequeue = True;
			}
		}
		else
		{
			if (f->cur <= f->finish)
			{
				w->opacity = f->finish*OPAQUE;
				need_dequeue = True;
			}
		}
		if (w->shadow)
		{
			XRenderFreePicture (dpy, w->shadow);
			w->shadow = None;
                        if( w->extents != None )
                            XFixesDestroyRegion( dpy, w->extents );
			w->extents = win_extents(dpy, w);
		}
		determine_mode (dpy, w);
		/* Must do this last as it might destroy f->w in callbacks */
		if (need_dequeue)
			dequeue_fade (dpy, f);
	}
	fade_time = now + fade_delta;
}

#define SHADOW_OFFSET_X	((-shadowRadius * 7 / 5) - shadowOffsetX * shadowRadius / 100) * w->shadowSize
#define SHADOW_OFFSET_Y	((-shadowRadius * 7 / 5) - shadowOffsetY * shadowRadius / 100) * w->shadowSize
/*#define SHADOW_OFFSET_X	(w->shadowSize * -shadowRadius * 7 / 500) - w->shadowSize * shadowOffsetX * shadowRadius / 10000
#define SHADOW_OFFSET_Y	(w->shadowSize * -shadowRadius * 7 / 500) - w->shadowSize * shadowOffsetY * shadowRadius / 10000*/

	static double
gaussian (double r, double x, double y)
{
	return ((1 / (sqrt (2 * M_PI * r))) *
			exp ((- (x * x + y * y)) / (2 * r * r)));
}


	static conv *
make_gaussian_map (Display *dpy, double r)
{
	conv	    *c;
	int		    size = ((int) ceil ((r * 3)) + 1) & ~1;
	int		    center = size / 2;
	int		    x, y;
	double	    t;
	double	    g;

	c = malloc (sizeof (conv) + size * size * sizeof (double));
	c->size = size;
	c->data = (double *) (c + 1);
	t = 0.0;
	for (y = 0; y < size; y++)
		for (x = 0; x < size; x++)
		{
			g = gaussian (r, (double) (x - center), (double) (y - center));
			t += g;
			c->data[y * size + x] = g;
		}
	/*    printf ("gaussian total %f\n", t); */
	for (y = 0; y < size; y++)
		for (x = 0; x < size; x++)
		{
			c->data[y*size + x] /= t;
		}
	return c;
}

/*
 * A picture will help
 *
 *	-center   0                width  width+center
 *  -center +-----+-------------------+-----+
 *	    |     |                   |     |
 *	    |     |                   |     |
 *        0 +-----+-------------------+-----+
 *	    |     |                   |     |
 *	    |     |                   |     |
 *	    |     |                   |     |
 *   height +-----+-------------------+-----+
 *	    |     |                   |     |
 * height+  |     |                   |     |
 *  center  +-----+-------------------+-----+
 */

	static unsigned char
sum_gaussian (conv *map, double opacity, int x, int y, int width, int height)
{
	int	    fx, fy;
	double  *g_data;
	double  *g_line = map->data;
	int	    g_size = map->size;
	int	    center = g_size / 2;
	int	    fx_start, fx_end;
	int	    fy_start, fy_end;
	double  v;

	/*
	 * Compute set of filter values which are "in range",
	 * that's the set with:
	 *	0 <= x + (fx-center) && x + (fx-center) < width &&
	 *  0 <= y + (fy-center) && y + (fy-center) < height
	 *
	 *  0 <= x + (fx - center)	x + fx - center < width
	 *  center - x <= fx	fx < width + center - x
	 */

	fx_start = center - x;
	if (fx_start < 0)
		fx_start = 0;
	fx_end = width + center - x;
	if (fx_end > g_size)
		fx_end = g_size;

	fy_start = center - y;
	if (fy_start < 0)
		fy_start = 0;
	fy_end = height + center - y;
	if (fy_end > g_size)
		fy_end = g_size;

	g_line = g_line + fy_start * g_size + fx_start;

	v = 0;
	for (fy = fy_start; fy < fy_end; fy++)
	{
		g_data = g_line;
		g_line += g_size;

		for (fx = fx_start; fx < fx_end; fx++)
			v += *g_data++;
	}
	if (v > 1)
		v = 1;

	return ((unsigned char) (v * opacity * 255.0));
}

/* precompute shadow corners and sides to save time for large windows */
	static void
presum_gaussian (conv *map)
{
	int center = map->size/2;
	int opacity, x, y;

	Gsize = map->size;

	if (shadowCorner)
		free ((void *)shadowCorner);
	if (shadowTop)
		free ((void *)shadowTop);

	shadowCorner = (unsigned char *)(malloc ((Gsize + 1) * (Gsize + 1) * 26));
	shadowTop = (unsigned char *)(malloc ((Gsize + 1) * 26));

	for (x = 0; x <= Gsize; x++)
	{
		shadowTop[25 * (Gsize + 1) + x] = sum_gaussian (map, 1, x - center, center, Gsize * 2, Gsize * 2);
		for(opacity = 0; opacity < 25; opacity++)
			shadowTop[opacity * (Gsize + 1) + x] = shadowTop[25 * (Gsize + 1) + x] * opacity / 25;
		for(y = 0; y <= x; y++)
		{
			shadowCorner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x]
				= sum_gaussian (map, 1, x - center, y - center, Gsize * 2, Gsize * 2);
			shadowCorner[25 * (Gsize + 1) * (Gsize + 1) + x * (Gsize + 1) + y]
				= shadowCorner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x];
			for(opacity = 0; opacity < 25; opacity++)
				shadowCorner[opacity * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x]
					= shadowCorner[opacity * (Gsize + 1) * (Gsize + 1) + x * (Gsize + 1) + y]
					= shadowCorner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x] * opacity / 25;
		}
	}
}

	static XImage *
make_shadow (Display *dpy, double opacity, int width, int height)
{
	XImage	    *ximage;
	unsigned char   *data;
	int		    gsize = gaussianMap->size;
	int		    ylimit, xlimit;
	int		    swidth = width + gsize;
	int		    sheight = height + gsize;
	int		    center = gsize / 2;
	int		    x, y;
	unsigned char   d;
	int		    x_diff;
	int             opacity_int = (int)(opacity * 25);
	data = malloc (swidth * sheight * sizeof (unsigned char));
	if (!data)
		return 0;
	ximage = XCreateImage (dpy,
			DefaultVisual(dpy, DefaultScreen(dpy)),
			8,
			ZPixmap,
			0,
			(char *) data,
			swidth, sheight, 8, swidth * sizeof (unsigned char));
	if (!ximage)
	{
		free (data);
		return 0;
	}
	/*
	 * Build the gaussian in sections
	 */

	/*
	 * center (fill the complete data array)
	 */
	if (Gsize > 0)
		d = shadowTop[opacity_int * (Gsize + 1) + Gsize];
	else
		d = sum_gaussian (gaussianMap, opacity, center, center, width, height);
	memset(data, d, sheight * swidth);

	/*
	 * corners
	 */
	ylimit = gsize;
	if (ylimit > sheight / 2)
		ylimit = (sheight + 1) / 2;
	xlimit = gsize;
	if (xlimit > swidth / 2)
		xlimit = (swidth + 1) / 2;

	for (y = 0; y < ylimit; y++)
		for (x = 0; x < xlimit; x++)
		{
			if (xlimit == Gsize && ylimit == Gsize)
				d = shadowCorner[opacity_int * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x];
			else
				d = sum_gaussian (gaussianMap, opacity, x - center, y - center, width, height);
			data[y * swidth + x] = d;
			data[(sheight - y - 1) * swidth + x] = d;
			data[(sheight - y - 1) * swidth + (swidth - x - 1)] = d;
			data[y * swidth + (swidth - x - 1)] = d;
		}

	/*
	 * top/bottom
	 */
	x_diff = swidth - (gsize * 2);
	if (x_diff > 0 && ylimit > 0)
	{
		for (y = 0; y < ylimit; y++)
		{
			if (ylimit == Gsize)
				d = shadowTop[opacity_int * (Gsize + 1) + y];
			else
				d = sum_gaussian (gaussianMap, opacity, center, y - center, width, height);
			memset (&data[y * swidth + gsize], d, x_diff);
			memset (&data[(sheight - y - 1) * swidth + gsize], d, x_diff);
		}
	}

	/*
	 * sides
	 */

	for (x = 0; x < xlimit; x++)
	{
		if (xlimit == Gsize)
			d = shadowTop[opacity_int * (Gsize + 1) + x];
		else
			d = sum_gaussian (gaussianMap, opacity, x - center, center, width, height);
		for (y = gsize; y < sheight - gsize; y++)
		{
			data[y * swidth + x] = d;
			data[y * swidth + (swidth - x - 1)] = d;
		}
	}

	return ximage;
}

	static Picture
shadow_picture (Display *dpy, double opacity, Picture alpha_pict, int width, int height, int *wp, int *hp)
{
	XImage  *shadowImage;
	Pixmap  shadowPixmap;
	Pixmap  finalPixmap;
	Picture shadowPicture;
	Picture finalPicture;
	GC	    gc;

	shadowImage = make_shadow (dpy, opacity, width, height);
	if (!shadowImage)
		return None;
	shadowPixmap = XCreatePixmap (dpy, root, 
			shadowImage->width,
			shadowImage->height,
			8);
	if (!shadowPixmap)
	{
		XDestroyImage (shadowImage);
		return None;
	}

	shadowPicture = XRenderCreatePicture (dpy, shadowPixmap,
			XRenderFindStandardFormat (dpy, PictStandardA8),
			0, 0);
	if (!shadowPicture)
	{
		XDestroyImage (shadowImage);
		XFreePixmap (dpy, shadowPixmap);
		return None;
	}

	gc = XCreateGC (dpy, shadowPixmap, 0, 0);
	if (!gc)
	{
		XDestroyImage (shadowImage);
		XFreePixmap (dpy, shadowPixmap);
		XRenderFreePicture (dpy, shadowPicture);
		return None;
	}

	XPutImage (dpy, shadowPixmap, gc, shadowImage, 0, 0, 0, 0, 
			shadowImage->width,
			shadowImage->height);
	*wp = shadowImage->width;
	*hp = shadowImage->height;
	XFreeGC (dpy, gc);
	XDestroyImage (shadowImage);
	XFreePixmap (dpy, shadowPixmap);
	return shadowPicture;
}

	Picture
solid_picture (Display *dpy, Bool argb, double a, double r, double g, double b)
{
	Pixmap			pixmap;
	Picture			picture;
	XRenderPictureAttributes	pa;
	XRenderColor		c;

	pixmap = XCreatePixmap (dpy, root, 1, 1, argb ? 32 : 8);
	if (!pixmap)
		return None;

	pa.repeat = True;
	picture = XRenderCreatePicture (dpy, pixmap,
			XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8),
			CPRepeat,
			&pa);
	if (!picture)
	{
		XFreePixmap (dpy, pixmap);
		return None;
	}

	c.alpha = a * 0xffff;
	c.red = r * 0xffff;
	c.green = g * 0xffff;
	c.blue = b * 0xffff;
	XRenderFillRectangle (dpy, PictOpSrc, picture, &c, 0, 0, 1, 1);
	XFreePixmap (dpy, pixmap);
	return picture;
}

	void
discard_ignore (Display *dpy, unsigned long sequence)
{
	while (ignore_head)
	{
		if ((long) (sequence - ignore_head->sequence) > 0)
		{
			ignore  *next = ignore_head->next;
			free (ignore_head);
			ignore_head = next;
			if (!ignore_head)
				ignore_tail = &ignore_head;
		}
		else
			break;
	}
}

	void
set_ignore (Display *dpy, unsigned long sequence)
{
	ignore  *i = malloc (sizeof (ignore));
	if (!i)
		return;
	i->sequence = sequence;
	i->next = 0;
	*ignore_tail = i;
	ignore_tail = &i->next;
}

	int
should_ignore (Display *dpy, unsigned long sequence)
{
	discard_ignore (dpy, sequence);
	return ignore_head && ignore_head->sequence == sequence;
}

	static win *
find_win (Display *dpy, Window id)
{
	win	*w;

	for (w = list; w; w = w->next)
		if ((!w->destroyed) && (w->id == id))
			return w;
	return 0;
}

static char *backgroundProps[] = {
	"_XROOTPMAP_ID",
	"_XSETROOT_ID",
	0,
};

static Picture
root_tile (Display *dpy)
{
	Picture	    picture;
	Atom	    actual_type;
	Pixmap	    pixmap;
	int		    actual_format;
	unsigned long   nitems;
	unsigned long   bytes_after;
	unsigned char   *prop;
	Bool	    fill;
	XRenderPictureAttributes	pa;
	int		    p;

	pixmap = None;
	for (p = 0; backgroundProps[p]; p++)
	{
		if (XGetWindowProperty (dpy, root, XInternAtom (dpy, backgroundProps[p], False),
					0, 4, False, AnyPropertyType,
					&actual_type, &actual_format, &nitems, &bytes_after, &prop) == Success &&
				actual_type == XInternAtom (dpy, "PIXMAP", False) && actual_format == 32 && nitems == 1)
		{
			pixmap = *(long*)prop;
			XFree (prop);
			fill = False;
			break;
		}
	}
	if (!pixmap)
	{
		pixmap = XCreatePixmap (dpy, root, 1, 1, DefaultDepth (dpy, scr));
		fill = True;
	}
	pa.repeat = True;
	picture = XRenderCreatePicture (dpy, pixmap,
			sXRenderFindVisualFormat (dpy,
				DefaultVisual (dpy, scr)),
			CPRepeat, &pa);
	if (fill)
	{
		XRenderFillRectangle (dpy, PictOpSrc, picture, &fill_color,
				0, 0, 1, 1);
	}
	return picture;
}

static void
paint_root (Display *dpy)
{
	if (!rootTile)
		rootTile = root_tile (dpy);

	XRenderComposite (dpy, PictOpSrc,
			rootTile, None, rootBuffer,
			0, 0, 0, 0, 0, 0, root_width, root_height);
}

static XserverRegion
win_extents (Display *dpy, win *w)
{
	XRectangle r;

	r.x = w->a.x;
	r.y = w->a.y;
	r.width = w->a.width + w->a.border_width * 2;
	r.height = w->a.height + w->a.border_width * 2;
	if (winTypeShadow[w->windowType])
	{
		if (compMode == CompServerShadows || w->mode != WINDOW_ARGB)
		{
			XRectangle  sr;

			if (compMode == CompServerShadows)
			{
				w->shadow_dx = 2;
				w->shadow_dy = 7;
				w->shadow_width = w->a.width;
				w->shadow_height = w->a.height;
			}
			else
			{
				w->shadow_dx = SHADOW_OFFSET_X;
				w->shadow_dx = w->shadow_dx / 100;
				w->shadow_dy = SHADOW_OFFSET_Y;
				w->shadow_dy = w->shadow_dy / 100;
				if (!w->shadow)
				{
					double	opacity = shadowOpacity;
					if (w->shadowSize > 100)
						opacity = opacity/(w->shadowSize*0.015);
					if (w->mode == WINDOW_TRANS)
						opacity = opacity * ((double)w->opacity)/((double)OPAQUE);
					w->shadow = shadow_picture (dpy, opacity, w->alphaPict,
							w->a.width + w->a.border_width * 2 - 2*(shadowRadius - (w->shadowSize*shadowRadius/100)) ,
							w->a.height + w->a.border_width * 2 - 2*(shadowRadius - (w->shadowSize*shadowRadius/100)),
							&w->shadow_width, &w->shadow_height);
   				/*int kill;
   				w->alpha = shadow_picture (dpy, 0.9, w->alphaPict,
   				                            w->a.width + w->a.border_width * 2,
   				                            w->a.height + w->a.border_width * 2,
   				                            &kill, &kill);*/
				}
			}
			sr.x = w->a.x + w->shadow_dx;
			sr.y = w->a.y + w->shadow_dy;
			sr.width = w->shadow_width;
			sr.height = w->shadow_height;
			if (sr.x < r.x)
			{
				r.width = (r.x + r.width) - sr.x;
				r.x = sr.x;
			}
			if (sr.y < r.y)
			{
				r.height = (r.y + r.height) - sr.y;
				r.y = sr.y;
			}
			if (sr.x + sr.width > r.x + r.width)
				r.width = sr.x + sr.width - r.x;
			if (sr.y + sr.height > r.y + r.height)
				r.height = sr.y + sr.height - r.y;
		}
	}
	return XFixesCreateRegion (dpy, &r, 1);
}

	static XserverRegion
border_size (Display *dpy, win *w)
{
	XserverRegion   border;
	/*
	 * if window doesn't exist anymore,  this will generate an error
	 * as well as not generate a region.  Perhaps a better XFixes
	 * architecture would be to have a request that copies instead
	 * of creates, that way you'd just end up with an empty region
	 * instead of an invalid XID.
	 */
	set_ignore (dpy, NextRequest (dpy));
	border = XFixesCreateRegionFromWindow (dpy, w->id, WindowRegionBounding);
	/* translate this */
	set_ignore (dpy, NextRequest (dpy));
	XFixesTranslateRegion (dpy, border,
			w->a.x + w->a.border_width,
			w->a.y + w->a.border_width);
	return border;
}

	static XserverRegion
deco_region (Display *dpy, win *w)
{
	XserverRegion   title;
	XRectangle	    r; /*titlebounding rect*/
	/*
	 * if window doesn't exist anymore,  this will generate an error
	 * as well as not generate a region.  Perhaps a better XFixes
	 * architecture would be to have a request that copies instead
	 * of creates, that way you'd just end up with an empty region
	 * instead of an invalid XID.
	 */
   r.x = w->a.x - w->a.border_width + _LEFTWIDTH_(w->decoHash);
   r.y = w->a.y - w->a.border_width + _TOPHEIGHT_(w->decoHash);
   r.width = w->a.width + w->a.border_width * 2 - _LEFTWIDTH_(w->decoHash) - _RIGHTWIDTH_(w->decoHash);
   r.height = w->a.height + w->a.border_width - _TOPHEIGHT_(w->decoHash) - _BOTTOMHEIGHT_(w->decoHash);
	set_ignore (dpy, NextRequest (dpy));
	title = XFixesCreateRegion (dpy, &r, 1);
	if (!w->borderSize)
		w->borderSize = border_size (dpy, w);
	set_ignore (dpy, NextRequest (dpy));
   XFixesSubtractRegion(dpy, title, w->borderSize, title);
	return title;
}

static void finish_destroy_win (Display *dpy, Window id, Bool gone);

	static XserverRegion
content_region (Display *dpy, win *w)
{
	XserverRegion   content;
	XRectangle	    r; /*contentbounding rect*/
	/*
	 * if window doesn't exist anymore,  this will generate an error
	 * as well as not generate a region.  Perhaps a better XFixes
	 * architecture would be to have a request that copies instead
	 * of creates, that way you'd just end up with an empty region
	 * instead of an invalid XID.
	 */
   r.x = w->a.x - w->a.border_width + _LEFTWIDTH_(w->decoHash);
   r.y = w->a.y - w->a.border_width + _TOPHEIGHT_(w->decoHash);
   r.width = w->a.width + w->a.border_width * 2 - _LEFTWIDTH_(w->decoHash) - _RIGHTWIDTH_(w->decoHash);
   r.height = w->a.height + w->a.border_width - _TOPHEIGHT_(w->decoHash) - _BOTTOMHEIGHT_(w->decoHash);
	set_ignore (dpy, NextRequest (dpy));
	content = XFixesCreateRegion (dpy, &r, 1);
	if (!w->borderSize)
		w->borderSize = border_size (dpy, w);
	set_ignore (dpy, NextRequest (dpy));
	XFixesIntersectRegion(dpy, content, w->borderSize, content);
	return content;
}

	static void
paint_all (Display *dpy, XserverRegion region)
{
	win	*w;
	win	*t = 0;

#if DEBUG_WINDOWS
	int window_count = 0;
#endif

	if (!region)
	{
		XRectangle  r;
		r.x = 0;
		r.y = 0;
		r.width = root_width;
		r.height = root_height;
		region = XFixesCreateRegion (dpy, &r, 1);
	}
#if MONITOR_REPAINT
	rootBuffer = rootPicture;
#else
	if (!rootBuffer)
	{
		Pixmap	rootPixmap = XCreatePixmap (dpy, root, root_width, root_height,
				DefaultDepth (dpy, scr));
		rootBuffer = XRenderCreatePicture (dpy, rootPixmap,
				sXRenderFindVisualFormat (dpy,
					DefaultVisual (dpy, scr)),
				0, 0);
		XFreePixmap (dpy, rootPixmap);
	}
#endif
	XFixesSetPictureClipRegion (dpy, rootPicture, 0, 0, region);
#if MONITOR_REPAINT
	XRenderComposite (dpy, PictOpSrc, blackPicture, None, rootPicture,
			0, 0, 0, 0, 0, 0, root_width, root_height);
#endif
#if DEBUG_REPAINT
	printf ("paint:");
#endif

	// Time delayed garbage collect
	// It waits 10 seconds before destroying window data
	// This allows the fade out to perform smoothly under all conditions
	// Yes, this code is somewhat inefficient!
	// But it shouldn't matter unless someone has tens of thousands of windows open...
	// If the user can set a fade out that is longer than 10 seconds,
	// then the value must be increased.  I am assuming that 10 seconds
	// is far too long for any normal human being to wait... ;-)
	for (w = list; w; w = w->next)
	{
		if (w->destruct_requested) {
			int curtime = get_time_in_milliseconds();
			if ((curtime - w->destruct_request_time) > 10000) {
				finish_destroy_win (dpy, w->id, True);
				w = list;
			}
		}
	}

	for (w = list; w; w = w->next)
	{
#if DEBUG_WINDOWS
		window_count++;
#endif
#if CAN_DO_USABLE
		if (!w->usable)
			continue;
#endif

		/* never painted, ignore it */
		if ((!screen_damaged) && (!w->damaged))
			continue;

		/* skip invisible windows */
		if (w->a.x + w->a.width < 1 || w->a.y + w->a.height < 1 || w->a.x >= root_width || w->a.y >= root_height)
			continue;

		if (!w->picture)
		{
			XRenderPictureAttributes	pa;
			XRenderPictFormat		*format;
			Drawable			draw = w->id;

#if HAS_NAME_WINDOW_PIXMAP
			if (hasNamePixmap && !w->pixmap)
				w->pixmap = XCompositeNameWindowPixmap (dpy, w->id);
			if (w->pixmap)
				draw = w->pixmap;
#endif
			format = sXRenderFindVisualFormat (dpy, w->a.visual);
			pa.subwindow_mode = IncludeInferiors;
			w->picture = XRenderCreatePicture (dpy, draw,
					format,
					CPSubwindowMode,
					&pa);
		}
#if DEBUG_REPAINT
		printf (" 0x%x", w->id);
#endif
		if (clipChanged)
		{
			if (w->borderSize)
			{
				set_ignore (dpy, NextRequest (dpy));
				XFixesDestroyRegion (dpy, w->borderSize);
				w->borderSize = None;
			}
			if (w->decoRegion)
			{
				set_ignore (dpy, NextRequest (dpy));
				XFixesDestroyRegion (dpy, w->decoRegion);
				w->decoRegion = None;
			}
			if (w->contentRegion)
			{
				set_ignore (dpy, NextRequest (dpy));
				XFixesDestroyRegion (dpy, w->contentRegion);
				w->contentRegion = None;
			}
			if (w->extents)
			{
				XFixesDestroyRegion (dpy, w->extents);
				w->extents = None;
			}
			if (w->borderClip)
			{
				XFixesDestroyRegion (dpy, w->borderClip);
				w->borderClip = None;
			}
		}
		if (!w->borderSize)
			w->borderSize = border_size (dpy, w);
		if (!w->extents)
			w->extents = win_extents (dpy, w);
		if ((w->mode == WINDOW_SOLID) || ((w->mode == WINDOW_TRANS) && w->decoHash))
		{
			int	x, y, wid, hei;
#if HAS_NAME_WINDOW_PIXMAP
			x = w->a.x;
			y = w->a.y;
			wid = w->a.width + w->a.border_width * 2;
			hei = w->a.height + w->a.border_width * 2;
#else
			x = w->a.x + w->a.border_width;
			y = w->a.y + w->a.border_width;
			wid = w->a.width;
			hei = w->a.height;
#endif
			XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, region);
			set_ignore (dpy, NextRequest (dpy));
			/*XFixesSubtractRegion (dpy, region, region, w->borderSize);
			  set_ignore (dpy, NextRequest (dpy));*/
			if (w->mode == WINDOW_SOLID)
			{
				XFixesSubtractRegion (dpy, region, region, w->borderSize);
				set_ignore (dpy, NextRequest (dpy));
				XRenderComposite (dpy, PictOpSrc, w->picture, None, rootBuffer,
						0, 0, 0, 0, x, y, wid, hei);
				if (w->dimPicture)
					XRenderComposite (dpy, PictOpOver, w->dimPicture, None, rootBuffer, 0, 0, 0, 0, x, y, wid, hei);
			}
			else
			{
				if (!w->contentRegion)
					w->contentRegion = content_region (dpy, w);
				XFixesSubtractRegion (dpy, region, region, w->contentRegion);
				set_ignore (dpy, NextRequest (dpy));
				/*solid part*/
				XRenderComposite (dpy, PictOpSrc, w->picture, None, rootBuffer,
						_LEFTWIDTH_(w->decoHash), _TOPHEIGHT_(w->decoHash), 0, 0,
						x + _LEFTWIDTH_(w->decoHash),
						y + _TOPHEIGHT_(w->decoHash),
						wid - _LEFTWIDTH_(w->decoHash) - _RIGHTWIDTH_(w->decoHash),
						hei - _TOPHEIGHT_(w->decoHash) - _BOTTOMHEIGHT_(w->decoHash));
			}
		}
		if (!w->borderClip)
		{
			w->borderClip = XFixesCreateRegion (dpy, 0, 0);
			XFixesCopyRegion (dpy, w->borderClip, region);
			XFixesIntersectRegion(dpy, w->borderClip, w->borderClip, w->borderSize);
		}
		w->prev_trans = t;
		t = w;
	}
#if DEBUG_WINDOWS
	printf("window count: %d\n\r", window_count);
#endif
#if DEBUG_REPAINT
	printf ("\n");
	fflush (stdout);
#endif
	XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, region);
	paint_root (dpy);
	for (w = t; w; w = w->prev_trans)
	{
		if (w->shadowSize > 0){
		    if (winTypeShadow[w->windowType]) {
			switch (compMode) {
				case CompSimple:
					break;
				case CompServerShadows:
					XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, w->borderClip);
					set_ignore (dpy, NextRequest (dpy));
					if (w->opacity != OPAQUE && !w->shadowPict)
						w->shadowPict = solid_picture (dpy, True,
								(double) w->opacity / OPAQUE * 0.3,
								0, 0, 0);
					XRenderComposite (dpy, PictOpOver, 
							w->shadowPict ? w->shadowPict : transBlackPicture,
							w->picture, rootBuffer,
							0, 0, 0, 0,
							w->a.x + w->shadow_dx,
							w->a.y + w->shadow_dy,
							w->shadow_width, w->shadow_height);
					break;
				case CompClientShadows:
					if (w->shadow)
					{
						XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, w->borderClip);
						XRenderComposite (dpy, PictOpOver, blackPicture, w->shadow, rootBuffer,
								0, 0, 0, 0,
								w->a.x + w->shadow_dx,
								w->a.y + w->shadow_dy,
								w->shadow_width, w->shadow_height);
					}
					break;
			}
		    }
		}
		if (w->opacity != OPAQUE && !w->alphaPict)
			w->alphaPict = solid_picture (dpy, False, 
					(double) w->opacity / OPAQUE, shadowColor.red, shadowColor.green, shadowColor.blue);
		if (w->mode == WINDOW_TRANS)
		{
			int	x, y, wid, hei;
			XFixesIntersectRegion (dpy, w->borderClip, w->borderClip, w->borderSize);
			XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, w->borderClip);
#if HAS_NAME_WINDOW_PIXMAP
			x = w->a.x;
			y = w->a.y;
			wid = w->a.width + w->a.border_width * 2;
			hei = w->a.height + w->a.border_width * 2;
#else
			x = w->a.x + w->a.border_width;
			y = w->a.y + w->a.border_width;
			wid = w->a.width;
			hei = w->a.height;
#endif
			set_ignore (dpy, NextRequest (dpy));
			if (!w->decoHash)
			{
				XRenderComposite (dpy, PictOpOver, w->picture, w->alphaPict, rootBuffer,
						0, 0, 0, 0, x, y, wid, hei);
			}
			else
			{
						/*trans part*/
                  /* PICTURE ;)
                  |-----------------------------|
                  |             top             |
                  |-----------------------------|
                  |l |                       | r|
                  |e |                       | i|
                  |f |                       | g|
                  |t |                       | h|
                  |--------------------------| t|
                  |           bottom         |  |
                  |--------------------------|--|*/
                  /*top*/
   				XRenderComposite (dpy, PictOpOver, w->picture, w->alphaPict, rootBuffer,
   				                  0, 0, 0, 0, x, y, wid, _TOPHEIGHT_(w->decoHash));
                  /*right*/
   				XRenderComposite (dpy, PictOpOver, w->picture, w->alphaPict, rootBuffer,
   				                  wid - _RIGHTWIDTH_(w->decoHash), _TOPHEIGHT_(w->decoHash),
   				                  0, 0,
   				                  x + wid - _RIGHTWIDTH_(w->decoHash),
   				                  y + _TOPHEIGHT_(w->decoHash), _RIGHTWIDTH_(w->decoHash),
   				                  hei - _TOPHEIGHT_(w->decoHash));
                  /*bottom*/
   				XRenderComposite (dpy, PictOpOver, w->picture, w->alphaPict, rootBuffer,
   				                  0, hei - _BOTTOMHEIGHT_(w->decoHash), 0, 0,
   				                  x, y + hei - _BOTTOMHEIGHT_(w->decoHash),
   				                  wid - _RIGHTWIDTH_(w->decoHash), _BOTTOMHEIGHT_(w->decoHash));
                  /*left*/
   				XRenderComposite (dpy, PictOpOver, w->picture, w->alphaPict, rootBuffer,
   				                  0, _TOPHEIGHT_(w->decoHash), 0, 0,
   				                  x, y + _TOPHEIGHT_(w->decoHash),
   				                  _LEFTWIDTH_(w->decoHash), hei - _TOPHEIGHT_(w->decoHash) - _BOTTOMHEIGHT_(w->decoHash));
		   }
		}
		else if (w->mode == WINDOW_ARGB)
		{
			int	x, y, wid, hei;
			XFixesIntersectRegion (dpy, w->borderClip, w->borderClip, w->borderSize);
			XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, w->borderClip);
#if HAS_NAME_WINDOW_PIXMAP
			x = w->a.x;
			y = w->a.y;
			wid = w->a.width + w->a.border_width * 2;
			hei = w->a.height + w->a.border_width * 2;
#else
			x = w->a.x + w->a.border_width;
			y = w->a.y + w->a.border_width;
			wid = w->a.width;
			hei = w->a.height;
#endif
			set_ignore (dpy, NextRequest (dpy));
			/* Here we redraw the background of the transparent window if we want
			   to do anything special (i.e. anything other than showing the
			   windows and desktop prestacked behind of the window).
			   For example, if you want to blur the background or show another
			   background pixmap entirely here is the place to do it; simply
			   draw the new background onto rootBuffer before continuing! */
			if (w->isInFade == False) {
				if (w->show_root_tile == True) {
					XRenderComposite (dpy, PictOpSrc, rootTile, None, rootBuffer,
							x, y, x, y, 
							x, y, wid, hei);
				}
			}
			XRenderComposite (dpy, PictOpOver, w->picture, w->alphaPict, rootBuffer,
					0, 0, 0, 0, 
					x, y, wid, hei);
		}
		XFixesDestroyRegion (dpy, w->borderClip);
		w->borderClip = None;
	}
	XFixesDestroyRegion (dpy, region);
	if (rootBuffer != rootPicture)
	{
#if 0
		XTransform	t;
		t.matrix[0][0] = XDoubleToFixed (3.0 /*/ scale*/);
		t.matrix[0][1] = 0.0;
		t.matrix[0][2] = 0.0;

		t.matrix[1][0] = 0.0;
		t.matrix[1][1] = XDoubleToFixed (1.0 /*/ scale*/);
		t.matrix[1][2] = 0.0;

		t.matrix[2][0] = 0.0;
		t.matrix[2][1] = 0.0;
		t.matrix[2][2] = XDoubleToFixed (1.0);

		XRenderSetPictureTransform (dpy, rootBuffer, &t);
#endif
		XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, None);
		XRenderComposite (dpy, PictOpSrc, rootBuffer, None, rootPicture,
				0, 0, 0, 0, 0, 0, root_width, root_height);
	}
	screen_damaged = False;
}

static void
add_damage (Display *dpy, XserverRegion damage)
{
	if (allDamage)
	{
		XFixesUnionRegion (dpy, allDamage, allDamage, damage);
		XFixesDestroyRegion (dpy, damage);
	}
	else
		allDamage = damage;
}

static void damage_win (Display *dpy, XDamageNotifyEvent *de);

static void
repair_win (Display *dpy, win *w)
{
	XserverRegion   parts;

	if (!w->damaged)
	{
		parts = win_extents (dpy, w);
		set_ignore (dpy, NextRequest (dpy));
		XDamageSubtract (dpy, w->damage, None, None);
	}
	else
	{
		XserverRegion	o;
		parts = XFixesCreateRegion (dpy, 0, 0);
		set_ignore (dpy, NextRequest (dpy));
		XDamageSubtract (dpy, w->damage, None, parts);
		XFixesTranslateRegion (dpy, parts,
				w->a.x + w->a.border_width,
				w->a.y + w->a.border_width);
		if (compMode == CompServerShadows)
		{
			o = XFixesCreateRegion (dpy, 0, 0);
			XFixesCopyRegion (dpy, o, parts);
			XFixesTranslateRegion (dpy, o, w->shadow_dx, w->shadow_dy);
			XFixesUnionRegion (dpy, parts, parts, o);
			XFixesDestroyRegion (dpy, o);
		}
	}
	add_damage (dpy, parts);
	w->damaged = 1;
}

static const char*
wintype_name(wintype type)
{
    const char *t;
    switch (type) {
    case WINTYPE_DESKTOP: t = "desktop"; break;
    case WINTYPE_DOCK:    t = "dock"; break;
    case WINTYPE_TOOLBAR: t = "toolbar"; break;
    case WINTYPE_MENU:    t = "menu"; break;
    case WINTYPE_UTILITY: t = "utility"; break;
    case WINTYPE_SPLASH:  t = "slash"; break;
    case WINTYPE_DIALOG:  t = "dialog"; break;
    case WINTYPE_NORMAL:  t = "normal"; break;
    case WINTYPE_DROPDOWN_MENU: t = "dropdown"; break;
    case WINTYPE_POPUP_MENU: t = "popup"; break;
    case WINTYPE_TOOLTIP: t = "tooltip"; break;
    case WINTYPE_NOTIFY:  t = "notification"; break;
    case WINTYPE_COMBO:   t = "combo"; break;
    case WINTYPE_DND:     t = "dnd"; break;
    default:              t = "unknown"; break;
    }
    return t;
}

void repaint_root_overlay_window ()
{
    XRectangle  r;
    r.x = 0;
    r.y = 0;
    r.width = root_width;
    r.height = root_height;
    XserverRegion  region = XFixesCreateRegion (dpy, &r, 1);
    add_damage (dpy, region);
}

static wintype
get_wintype_prop(Display * dpy, Window w)
{
    Atom actual;
    wintype ret;
    int format;
    unsigned long n, left, off;
    unsigned char *data;

    ret = (wintype)-1;
    off = 0;

    do {
        set_ignore (dpy, NextRequest (dpy));
        int result = XGetWindowProperty (dpy, w, winTypeAtom, off, 1L, False,
                                         XA_ATOM, &actual, &format,
                                         &n, &left, &data);

        if (result != Success)
            break;
        if (data != None)
        {
            int i;

            for (i = 0; i < NUM_WINTYPES; ++i) {
                Atom a;
                memcpy (&a, data, sizeof (Atom));
                if (a == winType[i]) {
                    /* known type */
                    ret = i;
                    break;
                }
            }

            XFree ( (void *) data);
        }

        ++off;
    } while (left >= 4 && ret == (wintype)-1);

    return ret;
}

static wintype
determine_wintype (Display *dpy, Window w, Window top)
{
    Window       root_return, parent_return;
    Window      *children = NULL;
    unsigned int nchildren, i;
    wintype      type;

    type = get_wintype_prop (dpy, w);
    if (type != (wintype)-1)
       return type;

    set_ignore (dpy, NextRequest (dpy));
    if (!XQueryTree (dpy, w, &root_return, &parent_return, &children,
                           &nchildren))
    {
       /* XQueryTree failed. */
       if (children)
           XFree ((void *)children);
       return (wintype)-1;
    }

    for (i = 0;i < nchildren;i++)
    {
       type = determine_wintype (dpy, children[i], top);
       if (type != (wintype)-1)
           return type;
    }

    if (children)
       XFree ((void *)children);

    if (w != top)
        return (wintype)-1;
    else
        return WINTYPE_NORMAL;
}

static unsigned int
get_opacity_prop(Display *dpy, win *w, unsigned int def);

static void
map_win (Display *dpy, Window id, unsigned long sequence, Bool fade)
{
	win		*w = find_win (dpy, id);
	Drawable	back;

	if (!w)
		return;

	w->a.map_state = IsViewable;

	/* This needs to be here or else we lose transparency messages */
	XSelectInput (dpy, id, PropertyChangeMask);

	/* This needs to be here since we don't get PropertyNotify when unmapped */
	w->opacity = get_opacity_prop (dpy, w, OPAQUE);
	determine_mode (dpy, w);

	w->windowType = determine_wintype (dpy, w->id, w->id);
	if ((w->windowType < 0) || (w->windowType > NUM_WINTYPES)) w->windowType = WINTYPE_NORMAL;
#if 0
	printf("window 0x%x type %s\n", w->id, wintype_name(w->windowType));
#endif

#if CAN_DO_USABLE
	w->damage_bounds.x = w->damage_bounds.y = 0;
	w->damage_bounds.width = w->damage_bounds.height = 0;
#endif
	w->damaged = 0;

#if WORK_AROUND_FGLRX
	if (w->a.x != 0) {
		XserverRegion extents = win_extents (dpy, w);
		XDamageNotifyEvent de;
		de.drawable = w->id;
		de.area.x = 0;
		de.area.y = 0;
		de.area.width = w->a.width + w->a.border_width * 2;
		de.area.height = w->a.height + w->a.border_width * 2;
		damage_win(dpy, &de);
		XFixesDestroyRegion (dpy, extents);
	}
#endif
	w->a_prev = w->a;

	if (fade && winTypeFade[w->windowType])
		set_fade (dpy, w, 0, get_opacity_prop(dpy, w, OPAQUE)*1.0/OPAQUE, fade_in_step, 0, False, True, True, True);
}

static void
finish_unmap_win (Display *dpy, win *w)
{
	w->damaged = 0;
#if CAN_DO_USABLE
	w->usable = False;
#endif
	if (w->extents != None)
	{
		add_damage (dpy, w->extents);    /* destroys region */
		w->extents = None;
	}

#if HAS_NAME_WINDOW_PIXMAP
	if (w->pixmap)
	{
		XFreePixmap (dpy, w->pixmap);
		w->pixmap = None;
	}
#endif

	if (w->picture)
	{
		set_ignore (dpy, NextRequest (dpy));
		XRenderFreePicture (dpy, w->picture);
		w->picture = None;
	}

	/* don't care about properties anymore */
	set_ignore (dpy, NextRequest (dpy));
	XSelectInput(dpy, w->id, 0);

	if (w->borderSize)
	{
		set_ignore (dpy, NextRequest (dpy));
		XFixesDestroyRegion (dpy, w->borderSize);
		w->borderSize = None;
	}
        
        if (w->decoRegion)
        {
            set_ignore (dpy, NextRequest (dpy));
            XFixesDestroyRegion (dpy, w->decoRegion);
            w->decoRegion = None;
        }
        
        if (w->contentRegion)
        {
            set_ignore (dpy, NextRequest (dpy));
            XFixesDestroyRegion (dpy, w->contentRegion);
            w->contentRegion = None;
        }
	
        if (w->shadow)
	{
		XRenderFreePicture (dpy, w->shadow);
		w->shadow = None;
	}
	if (w->borderClip)
	{
		XFixesDestroyRegion (dpy, w->borderClip);
		w->borderClip = None;
	}

	clipChanged = True;
}

#if HAS_NAME_WINDOW_PIXMAP
static void
unmap_callback (Display *dpy, win *w, Bool gone)
{
	finish_unmap_win (dpy, w);
}
#endif

static void
unmap_win (Display *dpy, Window id, Bool fade)
{
	win *w = find_win (dpy, id);
	if (!w)
		return;

	if (w->a.map_state != IsUnmapped) {
		w->a.map_state = IsUnmapped;
#if HAS_NAME_WINDOW_PIXMAP
		if (w->pixmap && fade && winTypeFade[w->windowType]) {
			set_fade (dpy, w, w->opacity*1.0/OPAQUE, 0.0, fade_out_step, unmap_callback, False, False, True, True);
		}
		else
#endif
			finish_unmap_win (dpy, w);
	}
}

/* Get the opacity prop from window
   not found: default
   otherwise the value
   */
	static unsigned int
get_opacity_prop(Display *dpy, win *w, unsigned int def)
{
	Atom actual;
	int format;
	unsigned long n, left;

	unsigned char *data;
	int result = XGetWindowProperty(dpy, w->id, opacityAtom, 0L, 1L, False, 
			XA_CARDINAL, &actual, &format, 
			&n, &left, &data);
	if (result == Success && data != NULL && format == 32 )
	{
		unsigned int i;
		i = *(long*)data;
		XFree( (void *) data);
		return i;
	}
	return def;
}

	static unsigned int
get_shadow_prop(Display *dpy, win *w)
{
	Atom actual;
	int format;
	unsigned long n, left;

	unsigned char *data = NULL;
	int result = XGetWindowProperty(dpy, w->id, shadowAtom, 0L, 1L, False, 
			XA_CARDINAL, &actual, &format, 
			&n, &left, &data);
	if (result == Success && data != NULL && format == 32 )
	{
		unsigned int i;
		i = *(long*)data;
		XFree( (void *) data);
		/*i added this for security reaons but limiting a value to 200% is somewhat indiscriminate
		  if (i > 200)
		  return 200;
		  else*/
		return i;
	}
	return 100;
}

	static unsigned int
get_shade_prop(Display *dpy, win *w)
{
	Atom actual;
	int format;
	unsigned long n, left;

	unsigned char *data = NULL;
	int result = XGetWindowProperty(dpy, w->id, shadeAtom, 0L, 1L, False, 
			XA_CARDINAL, &actual, &format, 
			&n, &left, &data);
	if (result == Success && data != NULL && format == 32 )
	{
		unsigned int i;
		i = *(long*)data;
		XFree( (void *) data);
		return i;
	}
	return 0;
}

	static Bool
get_shapable_prop(Display *dpy, win *w)
{
	Atom actual;
	int format;
	unsigned long n, left;

	unsigned char *data = NULL;
	int result = XGetWindowProperty(dpy, w->id, shapableAtom, 0L, 1L, False, 
			XA_CARDINAL, &actual, &format, 
			&n, &left, &data);
	if (result == Success && data != NULL && format == 32 )
	{
		unsigned int i;
		i = *(long*)data;
		XFree( (void *) data);
		return i==1;
	}
	return True; /*in general, the window should be shapable*/
}

static unsigned int
get_decoHash_prop(Display *dpy, win *w)
{
	Atom actual;
	int format;
	unsigned long n, left;

	unsigned char *data = NULL;
	int result = XGetWindowProperty(dpy, w->id, decoHashAtom, 0L, 1L, False, 
			XA_CARDINAL, &actual, &format, 
			&n, &left, &data);
	if (result == Success && data != NULL && format == 32 )
	{
		unsigned int i;
		i = *(long*)data;
		XFree( (void *) data);
		return i;
	}
	return 0; /*no titlebar*/
}

static unsigned int
get_dim_prop(Display *dpy, win *w)
{
    Atom actual;
    int format;
    unsigned long n, left;
    
    unsigned char *data = NULL;
    int result = XGetWindowProperty(dpy, w->id, dimAtom, 0L, 1L, False, 
                                    XA_CARDINAL, &actual, &format, 
                                    &n, &left, &data);
    if (result == Success && data != NULL)
    {
        unsigned int i;
        memcpy (&i, data, sizeof (unsigned int));
        XFree( (void *) data);
        if (i == 0) i = 1;
        return i;
    }
    return OPAQUE; /*in general, the window is not dimmed*/
}

static unsigned int
get_deskchange_prop(Display *dpy, Window id)
{
    Atom actual;
    int format;
    unsigned long n, left;
    
    unsigned char *data = NULL;
    int result = XGetWindowProperty(dpy, id, deskChangeAtom, 0L, 1L, False,
    XA_CARDINAL, &actual, &format,
    &n, &left, &data);
    if (result == Success && data != NULL)
    {
        unsigned int i;
        memcpy (&i, data, sizeof (unsigned int));
        XFree( (void *) data);
        if (i < 3)
            return i;
    }
    return 0; /*no valid change state*/
}

/* Get the opacity property from the window in a percent format
   not found: default
otherwise: the value
*/
	static double
get_opacity_percent(Display *dpy, win *w)
{
	if (w && w->isInFade)
	{
		fade *f = find_fade(w);
		return f->finish;
	}
	else
	{
		double def = winTypeOpacity[w->windowType];
		unsigned int opacity = get_opacity_prop (dpy, w, (unsigned int)(OPAQUE*def));
		return opacity*1.0/OPAQUE;
	}
}
#if 0
static void
damage_shape(Display *dpy, win *w, XRectangle *shape_damage)
{
    set_ignore (dpy, NextRequest (dpy));
    XserverRegion region = XFixesCreateRegion (dpy, shape_damage, 1);
    set_ignore (dpy, NextRequest (dpy));
    XserverRegion tmpRegion;
    add_damage(dpy, region);
    win *i;
    XRectangle *rect;
    int n;
    for (i = w; i; i = i->next)
    {
        XFixesIntersectRegion (dpy, tmpRegion, region, w->extents);
        rect = XFixesFetchRegion (dpy, region, &n);
        free(rect);
        printf("%d\n",n);
        if (n != 1)
        {
            w->damage = True;
            XFixesSubtractRegion (dpy, region, region, w->extents);
        }
        else
            break;
    }
    set_ignore (dpy, NextRequest (dpy));
    XFixesDestroyRegion (dpy, tmpRegion);
    set_ignore (dpy, NextRequest (dpy));
    XFixesDestroyRegion (dpy, region);
}
#endif

static Bool
get_window_transparent_to_desktop(Display * dpy, Window w)
{
	Atom actual;
	int format;
	unsigned long n, left;

	unsigned char *data;
	int result = XGetWindowProperty (dpy, w, winTDETTDAtom, 0L, 1L, False,
			XA_ATOM, &actual, &format,
			&n, &left, &data);

	if (result == Success && data != None && format == 32 )
	{
		Atom a;
		a = *(long*)data;
		XFree ( (void *) data);
		return True;
	}
	return False;
}

	static void
determine_mode(Display *dpy, win *w)
{
	int mode;
	XRenderPictFormat *format;
	unsigned int default_opacity;

	/* if trans prop == -1 fall back on  previous tests*/

	if (w->alphaPict)
	{
		XRenderFreePicture (dpy, w->alphaPict);
		w->alphaPict = None;
	}
	if (w->shadowPict)
	{
		XRenderFreePicture (dpy, w->shadowPict);
		w->shadowPict = None;
	}

	if (w->a.class == InputOnly)
	{
		format = 0;
	}
	else
	{
		format = XRenderFindVisualFormat (dpy, w->a.visual);
	}

        if (!disable_argb && format && format->type == PictTypeDirect && format->direct.alphaMask)
	{
		mode = WINDOW_ARGB;
	}
	else if (w->opacity != OPAQUE)
	{
		mode = WINDOW_TRANS;
	}
	else
	{
		mode = WINDOW_SOLID;
	}
	w->mode = mode;
	if (w->extents)
	{
		XserverRegion damage;
		damage = XFixesCreateRegion (dpy, 0, 0);
		XFixesCopyRegion (dpy, damage, w->extents);
		add_damage (dpy, damage);
	}
}

static Bool
determine_window_transparent_to_desktop (Display *dpy, Window w)
{
	Window       root_return, parent_return;
	Window      *children = NULL;
	unsigned int nchildren, i;
	Bool         type;

	type = get_window_transparent_to_desktop (dpy, w);
	if (type == True)
		return True;

	if (!XQueryTree (dpy, w, &root_return, &parent_return, &children,
				&nchildren))
	{
		/* XQueryTree failed. */
		if (children)
			XFree ((void *)children);
		return False;
	}

	for (i = 0;i < nchildren;i++)
	{
		type = determine_window_transparent_to_desktop (dpy, children[i]);
		if (type == True)
			return True;
	}

	if (children)
		XFree ((void *)children);

	return False;
}

	static void
add_win (Display *dpy, Window id, Window prev)
{
	win				*new = malloc (sizeof (win));
	win				**p;
        unsigned int			tmp;

	if (!new)
		return;
	if (prev)
	{
		for (p = &list; *p; p = &(*p)->next)
			if ((*p)->id == prev && !(*p)->destroyed)
				break;
	}
	else
		p = &list;
	new->id = id;
	set_ignore (dpy, NextRequest (dpy));
	if (!XGetWindowAttributes (dpy, id, &new->a))
	{
		free (new);
		return;
	}
	new->shaped = False;
	new->shape_bounds.x = new->a.x;
	new->shape_bounds.y = new->a.y;
	new->shape_bounds_prev = new->shape_bounds;
	new->shape_bounds.width = new->a.width;
	new->shape_bounds.height = new->a.height;
	new->a_prev = new->a;
	new->damaged = 0;
#if CAN_DO_USABLE
	new->usable = False;
#endif
#if HAS_NAME_WINDOW_PIXMAP
	new->pixmap = None;
#endif
	new->picture = None;
	if (new->a.class == InputOnly)
	{
		new->damage_sequence = 0;
		new->damage = None;
	}
	else
	{
		new->damage_sequence = NextRequest (dpy);
		new->damage = XDamageCreate (dpy, id, XDamageReportNonEmpty);
		XShapeSelectInput (dpy, id, ShapeNotifyMask);
	}
	new->isInFade = False;
	new->alphaPict = None;
	new->shadowPict = None;
	new->borderSize = None;
	new->decoRegion = None;
	new->contentRegion = None;
	new->extents = None;
	new->shadow = None;
	new->shadow_dx = 0;
	new->shadow_dy = 0;
	new->shadow_width = 0;
	new->shadow_height = 0;
	new->opacity = OPAQUE;
	new->destroyed = False;
	new->destruct_queued = False;
	new->destruct_requested = False;
	new->destruct_request_time = 0;
	new->shadowSize = 100;
	new->decoHash = 0;
	new->show_root_tile = determine_window_transparent_to_desktop(dpy, id);

	new->windowType = determine_wintype (dpy, new->id, new->id);
	if ((new->windowType < 0) || (new->windowType > NUM_WINTYPES)) new->windowType = WINTYPE_NORMAL;

	new->borderClip = None;
	new->prev_trans = 0;

	XShapeSelectInput( dpy, id, ShapeNotifyMask );

	new->shadowSize = get_shadow_prop (dpy, new);
	new->shapable = get_shapable_prop(dpy, new);
	new->decoHash = get_decoHash_prop(dpy, new);
	tmp = get_dim_prop(dpy, new);
        new->dimPicture = (tmp < OPAQUE) ? solid_picture (dpy, True, (double)tmp/OPAQUE, 0.1, 0.1, 0.1) : None;

	new->next = *p;
	*p = new;
	if (new->a.map_state == IsViewable)
		map_win (dpy, id, new->damage_sequence - 1, True);
}

	void
restack_win (Display *dpy, win *w, Window new_above)
{
	Window  old_above;

	if (w->next)
		old_above = w->next->id;
	else
		old_above = None;
	if (old_above != new_above)
	{
		win **prev;

		/* unhook */
		for (prev = &list; *prev; prev = &(*prev)->next)
			if ((*prev) == w)
				break;
		*prev = w->next;

		/* rehook */
		for (prev = &list; *prev; prev = &(*prev)->next)
		{
			if ((!(*prev)->destroyed) && ((*prev)->id == new_above))
				break;
		}
		w->next = *prev;
		*prev = w;
	}
}

	static void
configure_win (Display *dpy, XConfigureEvent *ce)
{
	win		    *w = find_win (dpy, ce->window);
	Window	    above;
	XserverRegion   damage = None;

	if (!w)
	{
		if (ce->window == root)
		{
			if (rootBuffer)
			{
				XRenderFreePicture (dpy, rootBuffer);
				rootBuffer = None;
			}
			root_width = ce->width;
			root_height = ce->height;
		}
		return;
	}

#if CAN_DO_USABLE
	if (w->usable)
#endif
	{
		damage = XFixesCreateRegion (dpy, 0, 0);
		if (w->extents != None)
                    XFixesCopyRegion (dpy, damage, w->extents);
	}
	w->shape_bounds.x -= w->a.x;
	w->shape_bounds.y -= w->a.y;
	w->a.x = ce->x;
	w->a.y = ce->y;
	/* Only destroy the pixmap if the window is mapped */
	if (w->a.map_state != IsUnmapped &&
		(w->a.width != ce->width || w->a.height != ce->height))
	{
#if HAS_NAME_WINDOW_PIXMAP
		if (w->pixmap)
		{
			XFreePixmap (dpy, w->pixmap);
			w->pixmap = None;
			if (w->picture)
			{
				XRenderFreePicture (dpy, w->picture);
				w->picture = None;
			}
		}
#endif
		if (w->shadow)
		{
			XRenderFreePicture (dpy, w->shadow);
			w->shadow = None;
		}
	}
	w->a.width = ce->width;
	w->a.height = ce->height;
	w->a.border_width = ce->border_width;
	w->a.override_redirect = ce->override_redirect;
        restack_win (dpy, w, ce->above);
	if (w->a.map_state != IsUnmapped && damage)
	{
		XserverRegion	extents = win_extents (dpy, w);
                XFixesUnionRegion (dpy, damage, damage, extents);
                XFixesDestroyRegion (dpy, extents);
		add_damage (dpy, damage);
	}
	w->shape_bounds.x += w->a.x;
	w->shape_bounds.y += w->a.y;
	if (!w->shaped)
	{
		w->shape_bounds.width = w->a.width;
		w->shape_bounds.height = w->a.height;
	}

	if (w->a.map_state != IsUnmapped)
		clipChanged = True;
}

	static void
circulate_win (Display *dpy, XCirculateEvent *ce)
{
	win	    *w = find_win (dpy, ce->window);
	Window  new_above;

	if (!w)
		return;

	if (ce->place == PlaceOnTop)
		new_above = list->id;
	else
		new_above = None;
	restack_win (dpy, w, new_above);
	clipChanged = True;
}

	static void
finish_destroy_win (Display *dpy, Window id, Bool gone)
{
	win	**prev, *w;

	for (prev = &list; (w = *prev); prev = &w->next)
		if (w->id == id && w->destroyed)
		{
			if (gone)
				finish_unmap_win (dpy, w);
			*prev = w->next;
			if (w->picture)
			{
				set_ignore (dpy, NextRequest (dpy));
				XRenderFreePicture (dpy, w->picture);
				w->picture = None;
			}
			if (w->alphaPict)
			{
				XRenderFreePicture (dpy, w->alphaPict);
				w->alphaPict = None;
			}
			if (w->shadowPict)
			{
				XRenderFreePicture (dpy, w->shadowPict);
				w->shadowPict = None;
			}
			if (w->shadow)
			{
				XRenderFreePicture (dpy, w->shadow);
				w->shadow = None;
			}
			if (w->damage != None)
			{
				set_ignore (dpy, NextRequest (dpy));
				XDamageDestroy (dpy, w->damage);
				w->damage = None;
			}
			cleanup_fade (dpy, w);
			free (w);
			break;
		}
}

#if HAS_NAME_WINDOW_PIXMAP
static void
destroy_callback (Display *dpy, win *w, Bool gone)
{
	finish_destroy_win (dpy, w->id, gone);
}
#endif

static void
destroy_win (Display *dpy, Window id, Bool gone, Bool fadeout)
{
	fade *f;
	win *w = find_win (dpy, id);

	if (w && w->destruct_queued == False) {
		f = find_fade (w);
		if (f) {
			w->destruct_queued = True;
			f->callback = destroy_callback;
			w->destroyed = True;
		}
		else {
			w->destroyed = True;
#if HAS_NAME_WINDOW_PIXMAP
			if (w->pixmap && fadeout && winTypeFade[w->windowType]) {
				set_fade (dpy, w, w->opacity*1.0/OPAQUE, 0.0, fade_out_step, destroy_callback, gone, False, True, True);
			}
			else
#endif
			{
				if (!gone) {
					finish_destroy_win (dpy, id, gone);
				}
				else {
					w->destruct_queued = True;
					w->destruct_requested = True;
					w->destruct_request_time = get_time_in_milliseconds();
				}
			}
		}
	}
}

/*
   static void
   dump_win (win *w)
   {
   printf ("\t%08lx: %d x %d + %d + %d (%d)\n", w->id,
   w->a.width, w->a.height, w->a.x, w->a.y, w->a.border_width);
   }


   static void
   dump_wins (void)
   {
   win	*w;

   printf ("windows:\n");
   for (w = list; w; w = w->next)
   dump_win (w);
   }
   */

	static void
damage_win (Display *dpy, XDamageNotifyEvent *de)
{
	win *w = find_win (dpy, de->drawable);

	if (!w)
		return;

#if WORK_AROUND_FGLRX
	if (w->a.map_state != IsViewable)
		return;
#endif

#if CAN_DO_USABLE
	if (!w->usable)
	{
		if (w->damage_bounds.width == 0 || w->damage_bounds.height == 0)
		{
			w->damage_bounds = de->area;
		}
		else
		{
			if (de->area.x < w->damage_bounds.x)
			{
				w->damage_bounds.width += (w->damage_bounds.x - de->area.x);
				w->damage_bounds.x = de->area.x;
			}
			if (de->area.y < w->damage_bounds.y)
			{
				w->damage_bounds.height += (w->damage_bounds.y - de->area.y);
				w->damage_bounds.y = de->area.y;
			}
			if (de->area.x + de->area.width > w->damage_bounds.x + w->damage_bounds.width)
				w->damage_bounds.width = de->area.x + de->area.width - w->damage_bounds.x;
			if (de->area.y + de->area.height > w->damage_bounds.y + w->damage_bounds.height)
				w->damage_bounds.height = de->area.y + de->area.height - w->damage_bounds.y;
		}
#if 0
		printf ("unusable damage [%d] %d, %d: %d x %d bounds %d, %d: %d x %d\n",
				de->drawable,
				de->area.x,
				de->area.y,
				de->area.width,
				de->area.height,
				w->damage_bounds.x,
				w->damage_bounds.y,
				w->damage_bounds.width,
				w->damage_bounds.height);
#endif
		if (w->damage_bounds.x <= 0 && 
				w->damage_bounds.y <= 0 &&
				w->a.width <= w->damage_bounds.x + w->damage_bounds.width &&
				w->a.height <= w->damage_bounds.y + w->damage_bounds.height)
		{
			clipChanged = True;
			if (winTypeFade[w->windowType]) {
				set_fade (dpy, w, 0, get_opacity_percent (dpy, w), fade_in_step, 0, False, True, True, False);
			}
			w->usable = True;
		}
	}
	if (w->usable)
#endif
		repair_win (dpy, w);
}

static const char *
shape_kind(int kind)
{
	static char	buf[128];
	
	switch(kind){
		case ShapeBounding: 
			return "ShapeBounding";
		case ShapeClip:
			return "ShapeClip";
		case ShapeInput:
			return "ShapeInput";
		default:
			sprintf (buf, "Shape %d", kind);
		return buf;
	}
}

static void
shape_win (Display *dpy, XShapeEvent *se)
{
	win	*w = find_win (dpy, se->window);
	
	if (!w)
		return;

	if (w->a.map_state == IsUnmapped)
		return;

	if (w->isInFade)
		return;
	
	if (se->kind == ShapeClip || se->kind == ShapeBounding)
	{
		XserverRegion region0;
		XserverRegion region1;

#if 0
      printf("win 0x%lx %s:%s %ux%u+%d+%d (@%d+%d)\n",
	     (unsigned long) se->window,
	     shape_kind(se->kind),
	     (se->shaped == True) ? "true" : "false",
	     se->width, se->height,
	     se->x, se->y,
	     w->a.x, w->a.y);
      printf("\told %s %d+%d (@%d+%d)\n",
	     (w->shaped == True) ? "true" : "false",
	     w->shape_bounds_prev.width, w->shape_bounds_prev.height,
	     w->shape_bounds_prev.x, w->shape_bounds_prev.y);
#endif

		clipChanged = True;
		
		region0 = XFixesCreateRegion (dpy, &w->shape_bounds_prev, 1);
		
		if (se->shaped == True)
		{
			w->shaped = True;
			w->shape_bounds.x = w->a.x + se->x;
			w->shape_bounds.y = w->a.y + se->y;
			w->shape_bounds.width = se->width;
			w->shape_bounds.height = se->height;
		}
		else
		{
			w->shaped = False;
			w->shape_bounds.x = w->a.x;
			w->shape_bounds.y = w->a.y;
			w->shape_bounds.width = w->a.width;
			w->shape_bounds.height = w->a.height;
		}
		
		region1 = XFixesCreateRegion (dpy, &w->shape_bounds, 1);
		XFixesUnionRegion (dpy, region0, region0, region1); 
		XFixesDestroyRegion (dpy, region1);
		
		/* ask for repaint of the old and new region */
		paint_all (dpy, region0);
	}

	w->shape_bounds_prev = w->shape_bounds;
}

static void
damage_screen (Display *dpy)
{
	XserverRegion region;
	XRectangle r;

	r.x = 0;
	r.y = 0;
	r.width = root_width;
	r.height = root_height;

	region = XFixesCreateRegion (dpy, &r, 1);
	add_damage (dpy, region);
	screen_damaged = True;
}

static int
error (Display *dpy, XErrorEvent *ev)
{
	int	    o;
	char    *name = 0;

	if (should_ignore (dpy, ev->serial))
		return 0;

	if (ev->request_code == composite_opcode &&
			ev->minor_code == X_CompositeRedirectSubwindows)
	{
		fprintf (stderr, "Another composite manager is already running\n");
		my_exit_code=2;
		exit (2);
	}

	o = ev->error_code - xfixes_error;
	switch (o) {
		case BadRegion: name = "BadRegion";	break;
		default: break;
	}
	o = ev->error_code - damage_error;
	switch (o) {
		case BadDamage: name = "BadDamage";	break;
		default: break;
	}
	o = ev->error_code - render_error;
	switch (o) {
		case BadPictFormat: name ="BadPictFormat"; break;
		case BadPicture: name ="BadPicture"; break;
		case BadPictOp: name ="BadPictOp"; break;
		case BadGlyphSet: name ="BadGlyphSet"; break;
		case BadGlyph: name ="BadGlyph"; break;
		default: break;
	}

#ifndef NDEBUG
	fprintf (stderr,"error %d request %d minor %d serial %d\n",
			ev->error_code, ev->request_code, ev->minor_code, ev->serial);
#endif

	/*    abort ();	    this is just annoying to most people */
	return 0;
}

	static void
expose_root (Display *dpy, Window root, XRectangle *rects, int nrects)
{
	XserverRegion  region = XFixesCreateRegion (dpy, rects, nrects);

	add_damage (dpy, region);
}


	static int
ev_serial (XEvent *ev)
{
	if ((ev->type & 0x7f) != KeymapNotify)
		return ev->xany.serial;
	return NextRequest (ev->xany.display);
}


	static char *
ev_name (XEvent *ev)
{
	static char	buf[128];
	switch (ev->type & 0x7f) {
		case Expose:
			return "Expose";
		case MapNotify:
			return "Map";
		case UnmapNotify:
			return "Unmap";
		case ReparentNotify:
			return "Reparent";
		case CirculateNotify:
			return "Circulate";
		default:
			if (ev->type == damage_event + XDamageNotify) {
				return "Damage";
			}
			else if (ev->type == xshape_event + ShapeNotify)
			{
				return "Shape";
			}
			sprintf (buf, "Event %d", ev->type);
			return buf;
	}
}

	static Window
ev_window (XEvent *ev)
{
	switch (ev->type) {
		case Expose:
			return ev->xexpose.window;
		case MapNotify:
			return ev->xmap.window;
		case UnmapNotify:
			return ev->xunmap.window;
		case ReparentNotify:
			return ev->xreparent.window;
		case CirculateNotify:
			return ev->xcirculate.window;
		default:
			if (ev->type == damage_event + XDamageNotify) {
// 				fprintf(stderr, "%d", ev->type);
				return ((XDamageNotifyEvent *) ev)->drawable;
			}
			else if (ev->type == xshape_event + ShapeNotify)
			{
// 				fprintf(stderr, "%d", ev->type);
				return ((XShapeEvent *) ev)->window;
			}
			return 0;
	}
}

void
setShadowColor(char *value){  /*format nach #xxxxxx (html) �ndern?*/
	unsigned int tmp;
	char **res = NULL;
	tmp = strtoul(value, res, 16);
	if( !value || strlen(value) < 6 || strlen(value) > 8 || (*(value+1) == 'x' && strlen(value) < 8) || res != NULL ){
		shadowColor.red = 0;
		shadowColor.green = 0;
		shadowColor.blue = 0;
		printf("wrong hexadecimal (use 0xXXXXXX or XXXXXX)! defaulting to black...\n");
		return;
	}
	shadowColor.blue = tmp&0xff;
	tmp >>= 8;
	shadowColor.green = tmp&0xff;
	tmp >>= 8;
	shadowColor.red = tmp&0xff;
}

typedef enum _option{
	Display_=0,
	Compmode,
	ExcludeDockShadows,
	FadeWindows,
	FadeTrans,
	AutoRedirect,
	Synchronize,
	ShadowColor,
	ShadowRadius,
	ShadowOpacity,
	ShadowOffsetX,
	ShadowOffsetY,
	FadeOutStep,
	FadeInStep,
	FadeDelta,
	DisableARGB,
	FadeMenuWindows,
	NUMBEROFOPTIONS
} Option;

const char *
options[NUMBEROFOPTIONS] = {
	"Display",              /*0*/
	"Compmode",             /*1*/
	"ExcludeDockShadows",   /*2*/
	"FadeWindows",          /*3*/
	"FadeTrans",            /*4*/
	"AutoRedirect",         /*5*/
	"Synchronize",          /*6*/
	"ShadowColor",          /*7*/
	"ShadowRadius",         /*8*/
	"ShadowOpacity",        /*9*/
	"ShadowOffsetX",        /*10*/
	"ShadowOffsetY",        /*11*/
	"FadeOutStep",          /*12*/
	"FadeInStep",           /*13*/
	"FadeDelta",            /*14*/
	"DisableARGB",          /*15*/
	"FadeMenuWindows",      /*16*/
	/*put your thingy in here...*/    
};

void
setValue(Option option, char *value ){
	switch(option){ /*please keep that upside-down, because this way adding a new option is easier (all in one view)*/

		case FadeDelta:
			fade_delta = atoi(value);
			if (fade_delta < 1)
				fade_delta = 10;
			break;
		case FadeInStep:
			fade_in_step = atof(value);
			if (fade_in_step <= 0)
				fade_in_step = 0.01;
			break;
		case FadeOutStep:
			fade_out_step = atof(value);
			if (fade_out_step <= 0)
				fade_out_step = 0.01;
			break;
		case ShadowOffsetY:
			shadowOffsetY = atoi(value);
			break;
		case ShadowOffsetX:
			shadowOffsetX = atoi(value);
			break;
		case ShadowOpacity:
			shadowOpacity = atof(value);
			break;
		case ShadowRadius:
			shadowRadius = atoi(value);
			break;                    
		case ShadowColor:
			setShadowColor(value);
			break;
		case Synchronize:
			synchronize = ( strcasecmp(value, "true") == 0 );
			break;
		case AutoRedirect:
			autoRedirect = ( strcasecmp(value, "true") == 0 );
			break;
		case FadeTrans:
			fadeTrans = ( strcasecmp(value, "true") == 0 );
			break;
		case FadeWindows:
			if ( strcasecmp(value, "true") == 0 ) {
				int i;
				for (i = 0; i < NUM_WINTYPES; ++i) {
					if (i != WINTYPE_POPUP_MENU)
						winTypeFade[i] = True;
				}
			}
			break;
		case FadeMenuWindows:
			if ( strcasecmp(value, "true") == 0 ) {
				winTypeFade[WINTYPE_POPUP_MENU] = True;
			}
			break;
		case ExcludeDockShadows:
			if ( strcasecmp(value, "true") == 0 ) {
				winTypeShadow[WINTYPE_DOCK] = False;
			}
			break;
		case Compmode:
			if( strcasecmp(value, "CompClientShadows") == 0 ){
				compMode = CompClientShadows;
			}
			else if( strcasecmp(value, "CompServerShadows") == 0 ){
				compMode = CompServerShadows;
			}
			else{
				compMode = CompSimple; /*default*/
			}
			break;
		case Display_:
                        break;
			display = strdup(value);
			break;
		case DisableARGB:
			disable_argb = ( strcasecmp(value, "true") == 0 );
			break;
		default:
			break;
	}
}

int
setParameter(char *line){
	char *name = strtok(line, "=");
	char *value = line+strlen(name)+1;
	Option i;
	for(i=Display_; i < NUMBEROFOPTIONS; i++){
		if( strcasecmp(name, *(options+i) ) == 0 ){
			setValue(i, value);
			name = value = NULL;
			return 1;
		}
	}
	printf("ignored unknown option: <%s>\n", name);
	name = value = NULL;
	return 0;
}

void
loadConfig(char *filename){
	FILE           *file = NULL;
	char            line[ 1024 ];
	size_t          length = 0;
	Bool            wasNull = False;
	Bool            section = False;

	if( filename == NULL ){
#ifdef USE_ENV_HOME
		const char *home = getenv("HOME");
#else
		const char *home;
		struct passwd *p;
		p = getpwuid(getuid());
		if (p)
			home = p->pw_dir;
		else
			home = getenv("HOME");
#endif
		const char *configfile = "/.xcompmgrrc"; 
		int n = strlen(home)+strlen(configfile)+1;
		filename = (char*)malloc(n*sizeof(char));
		memset(filename,0,n);
		wasNull = True;

		strcat(filename, home);
		strcat(filename, configfile);
	}

	printf("trying '%s' as configfile\n\n", filename);

	if( (file = fopen(filename, "r")) == NULL ){
		printf("failed to open config file. does it exist?\n");
		if( wasNull ){
			free(filename);
			filename = NULL;
		}
		return;
	}

	/*find section*/
	while( !section && fgets(line, 1023, file) != NULL ){
		if( strcmp(line, "[xcompmgr]\n") == 0 )
			section = True;
	}
	/*read and set values*/
	while( section && fgets(line, 1023, file) != NULL ){
		int ret = strlen( line );
		if( ret > 1 ){
			if( *line == '[' )/*found new section - maybe check for '\n'?*/
				break;
			*(line+ret-1) = '\0';
			setParameter(line);
		}
	}
	printf("\nfinished parsing the config file\n");
	fclose(file);
	if( wasNull ){
		free(filename);
		filename = NULL;
	}
}

	void
usage (char *program)
{
	fprintf (stderr, "%s v1.0\n", program);
	fprintf (stderr, "usage: %s [options]\n", program);
	fprintf (stderr, "Options\n");
	fprintf (stderr, "   -d display\n      Specifies which display should be managed.\n");
	fprintf (stderr, "   -r radius\n      Specifies the blur radius for client-side shadows. (default 12)\n");
	fprintf (stderr, "   -o opacity\n      Specifies the translucency for client-side shadows. (default .75)\n");
	fprintf (stderr, "   -l left-offset\n      Specifies the left offset for client-side shadows. (default -15)\n");
	fprintf (stderr, "   -t top-offset\n      Specifies the top offset for clinet-side shadows. (default -15)\n");
	fprintf (stderr, "   -b color\n      Specifies the background color to use if no root pixmap is set. (default is black)\n");
	fprintf (stderr, "   -I fade-in-step\n      Specifies the opacity change between steps while fading in. (default 0.028)\n");
	fprintf (stderr, "   -O fade-out-step\n      Specifies the opacity change between steps while fading out. (default 0.03)\n");
	fprintf (stderr, "   -D fade-delta-time\n      Specifies the time between steps in a fade in milliseconds. (default 10)\n");
	fprintf (stderr, "   -a\n      Use automatic server-side compositing. Faster, but no special effects.\n");
	fprintf (stderr, "   -c\n      Draw client-side shadows with fuzzy edges.\n");
	fprintf (stderr, "   -C\n      Avoid drawing shadows on dock/panel windows.\n");
	fprintf (stderr, "   -f\n      Fade windows in/out when opening/closing.\n");
	fprintf (stderr, "   -F\n      Fade windows during opacity changes.\n");
	fprintf (stderr, "   -n\n      Normal client-side compositing with transparency support\n");
	fprintf (stderr, "   -s\n      Draw server-side shadows with sharp edges.\n");
	fprintf (stderr, "   -S\n      Enable synchronous operation (for debugging).\n");
	fprintf (stderr, "   -x [0x]XXXXXX\n      Choose Custom Color in hex format\n");
	fprintf (stderr, "   -v\n      Print version Number and exit\n");
	fprintf (stderr, "   -h\n      Print this help\n");
	my_exit_code=2;
	exit (2);
}

static Bool
register_cm (void)
{
      Window w;
      Atom a;
      static char net_wm_cm[] = "_NET_WM_CM_Sxx";

      snprintf (net_wm_cm, sizeof (net_wm_cm), "_NET_WM_CM_S%d", scr);
      a = XInternAtom (dpy, net_wm_cm, False);

/*      w = XGetSelectionOwner (dpy, a);
      if (w != None)
      {
          XTextProperty tp;
          char **strs;
          int count;
          Atom winNameAtom = XInternAtom (dpy, "_NET_WM_NAME", False);

          if (!XGetTextProperty (dpy, w, &tp, winNameAtom) &&
          !XGetTextProperty (dpy, w, &tp, XA_WM_NAME))
          {
              fprintf (stderr,
              "Another composite manager is already running (0x%lx)\n",
              (unsigned long) w);
              return False;
          }
          if (XmbTextPropertyToTextList (dpy, &tp, &strs, &count) == Success)
          {
              fprintf (stderr,
               "Another composite manager is already running (%s)\n",
               strs[0]);

               XFreeStringList (strs);
          }

          XFree (tp.value);

          return False;
      }*/

      w = XCreateSimpleWindow (dpy, RootWindow (dpy, scr), 0, 0, 1, 1, 0, None,
		  None);
      Xutf8SetWMProperties(dpy, w, "kcompmgr", "kcompmgr", NULL, 0, NULL, NULL,
		  NULL);

      /* setting this causes kompmgr to abort on TDE login */
      /* XSetSelectionOwner (dpy, a, w, 0); */

      return True;
}

int
main (int argc, char **argv)
{
	XEvent	    ev;
	Window	    root_return, parent_return;
	Window	    *children;
	Pixmap	    transPixmap;
	Pixmap	    blackPixmap;
	unsigned int    nchildren;
	int		    i;
	XRenderPictureAttributes	pa;
	XRenderColor		c;
	XRectangle	    *expose_rects = 0;
	int		    size_expose = 0;
	int		    n_expose = 0;
	struct pollfd   ufd;
	int		    n;
	int		    last_update;
	int		    now;
	int		    p;
	int		    composite_major, composite_minor;
	Bool		    noDockShadow = False;

	for (i = 0; i < NUM_WINTYPES; ++i) {
		winTypeFade[i] = False;
		winTypeShadow[i] = False;
		winTypeOpacity[i] = 1.0;
	}

	int		    o;
	char		    *fill_color_name = NULL;
	char **res = NULL;

	shadowColor.red = 0;
	shadowColor.green = 0;
	shadowColor.blue = 0;

	// Initialize signal handlers
	sigfillset(&block_mask);
	usr_action.sa_handler = handle_siguser;
	usr_action.sa_mask = block_mask;
	usr_action.sa_flags = 0;
	sigaction(SIGUSR1, &usr_action, NULL);
        sigaction(SIGUSR2, &usr_action, NULL);
        sigaction(SIGTERM, &usr_action, NULL);

	loadConfig(NULL); /*we do that before cmdline-parsing, so config-values can be overridden*/
	/*used for shadow colors*/

	while ((o = getopt (argc, argv, "D:I:O:d:r:o:l:t:b:scnfFmCaSx:vhk")) != -1)
	{
		switch (o) {
			case 'd':
				display = optarg;
				break;
			case 'D':
				fade_delta = atoi (optarg);
				if (fade_delta < 1)
					fade_delta = 10;
				break;
			case 'I':
				fade_in_step = atof (optarg);
				if (fade_in_step <= 0)
					fade_in_step = 0.01;
				break;
			case 'O':
				fade_out_step = atof (optarg);
				if (fade_out_step <= 0)
					fade_out_step = 0.01;
				break;
			case 's':
				compMode = CompServerShadows;
				for (i = 0; i < NUM_WINTYPES; ++i)
					winTypeShadow[i] = True;
				break;
			case 'c':
				compMode = CompClientShadows;
				for (i = 0; i < NUM_WINTYPES; ++i)
					winTypeShadow[i] = True;
				break;
			case 'C':
				winTypeShadow[WINTYPE_DOCK] = False;
				break;
			case 'n':
				compMode = CompSimple;
				for (i = 0; i < NUM_WINTYPES; ++i)
					winTypeShadow[i] = False;
				break;
			case 'f':
				for (i = 0; i < NUM_WINTYPES; ++i) {
					if (i != WINTYPE_POPUP_MENU)
						winTypeFade[i] = True;
				}
				break;
			case 'm':
				winTypeFade[WINTYPE_POPUP_MENU] = True;
				break;
			case 'F':
				fadeTrans = True;
				break;
			case 'a':
				autoRedirect = True;
				break;
			case 'S':
				synchronize = True;
				break;
			case 'r':
				shadowRadius = atoi (optarg);
				break;
			case 'o':
				shadowOpacity = atof (optarg);
				break;
			case 'l':
				shadowOffsetX = atoi (optarg);
				break;
			case 't':
				shadowOffsetY = atoi (optarg);
				break;
			case 'b':
				fill_color_name = optarg;
				break;
			case 'x':
				if( compMode != CompClientShadows ){
					fprintf(stderr, "sorry, but we need ClientShadows (-c) for coloring to work properly!\ndefaulting to black...\n");
					break;
				}
				setShadowColor(optarg);
				break;
			case 'v': fprintf (stderr, "%s v%-3.2f\n", argv[0], _VERSION_); my_exit_code=0; exit (0);
			case 'k':
				restartOnSigterm = False;
				break;
			case 'h':
			default:
				  usage (argv[0]);
				  break;
		}
	}

	/* don't bother to do anything for the desktop */
	winTypeOpacity[WINTYPE_DESKTOP] = 1.0;
	winTypeShadow[WINTYPE_DESKTOP] = False;
	winTypeFade[WINTYPE_DESKTOP] = False;

	dpy = XOpenDisplay (display);
	if (!dpy)
	{
		fprintf (stderr, "Can't open display\n");
		my_exit_code=2;
		exit (2);
	}
	XSetErrorHandler (error);
	if (synchronize)
		XSynchronize (dpy, 1);
	scr = DefaultScreen (dpy);
	root = RootWindow (dpy, scr);

	if (!XRenderQueryExtension (dpy, &render_event, &render_error))
	{
		fprintf (stderr, "No render extension\n");
		my_exit_code=2;
		exit (2);
	}
	if (!XQueryExtension (dpy, COMPOSITE_NAME, &composite_opcode,
				&composite_event, &composite_error))
	{
		fprintf (stderr, "No composite extension\n");
		my_exit_code=2;
		exit (2);
	}
	XCompositeQueryVersion (dpy, &composite_major, &composite_minor);
#if HAS_NAME_WINDOW_PIXMAP
	if (composite_major > 0 || composite_minor >= 2)
		hasNamePixmap = True;
#endif

	if (!XDamageQueryExtension (dpy, &damage_event, &damage_error))
	{
		fprintf (stderr, "No damage extension\n");
		my_exit_code=2;
		exit (2);
	}
	if (!XFixesQueryExtension (dpy, &xfixes_event, &xfixes_error))
	{
		fprintf (stderr, "No XFixes extension\n");
		my_exit_code=2;
		exit (2);
	}
	if (!XShapeQueryExtension (dpy, &xshape_event, &xshape_error))
	{
		fprintf (stderr, "No XShape extension\n");
		my_exit_code=2;
		exit (2);
	}

	fprintf(stderr, "Started\n");

	if (!register_cm())
	{
		my_exit_code=2;
		exit (2);
	}

	/* get atoms */
	shadowAtom = XInternAtom (dpy, SHADOW_PROP, False);
	opacityAtom = XInternAtom (dpy, OPACITY_PROP, False);
	shadeAtom = XInternAtom (dpy, SHADE_PROP, False);
	shapableAtom = XInternAtom (dpy, SHAPABLE_PROP, False);
	decoHashAtom = XInternAtom (dpy, DECOHASH_PROP, False);
        dimAtom = XInternAtom (dpy, DIM_PROP, False);
        deskChangeAtom = XInternAtom (dpy, DESKCHANGE_PROP, False);
	winTypeAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE", False);
	winTDETTDAtom = XInternAtom (dpy, "_KDE_TRANSPARENT_TO_DESKTOP", False);
	winType[WINTYPE_DESKTOP] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_DESKTOP", False);
	winType[WINTYPE_DOCK] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_DOCK", False);
	winType[WINTYPE_TOOLBAR] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_TOOLBAR", False);
	winType[WINTYPE_MENU] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_MENU", False);
	winType[WINTYPE_UTILITY] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_UTILITY", False);
	winType[WINTYPE_SPLASH] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_SPLASH", False);
	winType[WINTYPE_DIALOG] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
	winType[WINTYPE_NORMAL] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_NORMAL", False);
	winType[WINTYPE_DROPDOWN_MENU] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_DROPDOWN_MENU", False);
	winType[WINTYPE_POPUP_MENU] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_POPUP_MENU", False);
	winType[WINTYPE_TOOLTIP] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_TOOLTIP", False);
	winType[WINTYPE_NOTIFY] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_NOTIFICATION", False);
	winType[WINTYPE_COMBO] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_COMBO", False);
	winType[WINTYPE_DND] = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_DND", False);

	pa.subwindow_mode = IncludeInferiors;

	if (compMode == CompClientShadows)
	{
		gaussianMap = make_gaussian_map(dpy, shadowRadius);
		presum_gaussian (gaussianMap);
	}

	if (fill_color_name)
	{
		XColor c;
		if (! XParseColor (dpy, DefaultColormap (dpy, scr),
			   fill_color_name, &c))
		{
			fprintf (stderr, "Could not parse fill color.\n");
			my_exit_code=2;
			exit (2);
		}
		if (! XAllocColor (dpy, DefaultColormap (dpy, scr), &c))
		{
			fprintf (stderr, "Could not allocate color.\n");
			my_exit_code=2;
			exit (2);
		}

		fill_color.red = c.red;
		fill_color.green = c.green;
		fill_color.blue = c.blue;
	}
	else
	{
		fill_color.red = fill_color.green = fill_color.blue = 0x0;
	}
	fill_color.alpha = 0xffff;

	root_width = DisplayWidth (dpy, scr);
	root_height = DisplayHeight (dpy, scr);

	rootPicture = XRenderCreatePicture (dpy, root,
			sXRenderFindVisualFormat (dpy,
				DefaultVisual (dpy, scr)),
			CPSubwindowMode,
			&pa);
	blackPicture = solid_picture (dpy, True, 1, (double)(shadowColor.red)/0xff, (double)(shadowColor.green)/0xff, (double)(shadowColor.blue)/0xff);
	if (compMode == CompServerShadows)
		transBlackPicture = solid_picture (dpy, True, 0.3, 0, 0, 0);
	allDamage = None;
	clipChanged = True;
	XGrabServer (dpy);
	if (autoRedirect)
		XCompositeRedirectSubwindows (dpy, root, CompositeRedirectAutomatic);
	else
	{
        int dummy;
		XCompositeRedirectSubwindows (dpy, root, CompositeRedirectManual);
		XSelectInput (dpy, root,
				SubstructureNotifyMask|
				ExposureMask|
				StructureNotifyMask|
				PropertyChangeMask |
				VisibilityChangeMask);

		/*shaping stuff*/
		XShapeQueryExtension(dpy, &shapeEvent, &dummy);

		XShapeSelectInput (dpy, root, ShapeNotifyMask);
		XQueryTree (dpy, root, &root_return, &parent_return, &children, &nchildren);
		for (i = 0; i < nchildren; i++)
			add_win (dpy, children[i], i ? children[i-1] : None);
		XFree (children);
	}
	XUngrabServer (dpy);
	ufd.fd = ConnectionNumber (dpy);
	ufd.events = POLLIN;
	if (!autoRedirect)
		paint_all (dpy, None);

        /* Under no circumstances should these two lines EVER be moved earlier in main() than this point */
        atexit(delete_pid_file);
        write_pid_file(getpid());

	for (;;)
	{
		/*	dump_wins (); */
		do {
			if (autoRedirect)
				XFlush (dpy);
			if (!QLength (dpy))
			{
				if (poll (&ufd, 1, fade_timeout()) == 0)
				{
					run_fades (dpy);
					break;
				}
			}

			XNextEvent (dpy, &ev);
			if ((ev.type & 0x7f) != KeymapNotify)
				discard_ignore (dpy, ev.xany.serial);
#if DEBUG_EVENTS
			printf ("event %10.10s serial 0x%08x window 0x%08x\n",
					ev_name(&ev), ev_serial (&ev), ev_window (&ev));
#endif
			if (!autoRedirect) switch (ev.type) {
				case CreateNotify:
					add_win (dpy, ev.xcreatewindow.window, 0);
					break;
				case ConfigureNotify:
					configure_win (dpy, &ev.xconfigure);
					break;
				case DestroyNotify:
					destroy_win (dpy, ev.xdestroywindow.window, True, True);
					break;
				case MapNotify:
					map_win (dpy, ev.xmap.window, ev.xmap.serial, True);
					break;
				case UnmapNotify:
					unmap_win (dpy, ev.xunmap.window, True);
					break;
				case ReparentNotify:
					if (ev.xreparent.parent == root)
						add_win (dpy, ev.xreparent.window, 0);
					else
						destroy_win (dpy, ev.xreparent.window, False, True);
					break;
				case CirculateNotify:
					circulate_win (dpy, &ev.xcirculate);
					break;
				case Expose:
					if (ev.xexpose.window == root)
					{
						int more = ev.xexpose.count + 1;
						if (n_expose == size_expose)
						{
							if (expose_rects)
							{
								expose_rects = realloc (expose_rects, 
										(size_expose + more) * 
										sizeof (XRectangle));
								size_expose += more;
							}
							else
							{
								expose_rects = malloc (more * sizeof (XRectangle));
								size_expose = more;
							}
						}
						expose_rects[n_expose].x = ev.xexpose.x;
						expose_rects[n_expose].y = ev.xexpose.y;
						expose_rects[n_expose].width = ev.xexpose.width;
						expose_rects[n_expose].height = ev.xexpose.height;
						n_expose++;
						if (ev.xexpose.count == 0)
						{
							expose_root (dpy, root, expose_rects, n_expose);
							n_expose = 0;
						}
					}
					break;
				case PropertyNotify:
					for (p = 0; backgroundProps[p]; p++)
					{
						if (ev.xproperty.atom == XInternAtom (dpy, backgroundProps[p], False))
						{
							if (rootTile)
							{
								XRenderFreePicture (dpy, rootTile);
								rootTile = None;
								damage_screen (dpy);
								break;
							}
						}
					}
					/* Window set shade? */
					if (ev.xproperty.atom == shadeAtom)
					{
						win * w = find_win(dpy, ev.xproperty.window);
						if (w){
							unsigned int tmp = get_shade_prop(dpy, w);
							if (tmp)
							{
								if (tmp == 1)
								{
									w->preShadeOpacity = w->opacity;
									w->opacity = w->opacity-1; /*assuming that no human being will ever be able to shade an invisable window ;) */
									determine_mode(dpy, w);
								}
								else if (tmp == 2)
								{
									w->opacity = w->preShadeOpacity;
									determine_mode(dpy, w);
								}
							}
							break;
						}
					}
					else if (ev.xproperty.atom == shapableAtom)
					{
						win * w = find_win(dpy, ev.xproperty.window);
						if (w)
						{
							w->shapable = get_shapable_prop(dpy, w);
							/*			printf("%u is %s shapable\n",w->id,w->shapable?"":"not");*/
						}
						else
							printf("arrrg, window not found\n");
					}
					else if (ev.xproperty.atom == decoHashAtom)
					{
						win * w = find_win(dpy, ev.xproperty.window);
						if (w)
						{
							w->decoHash = get_decoHash_prop(dpy, w);
						}
						else
							printf("arrrg, window not found\n");
					}
					else if (ev.xproperty.atom == dimAtom)
					{
						win * w = find_win(dpy, ev.xproperty.window);
						if (w)
						{
							unsigned int tmp = get_dim_prop(dpy, w);
							if (w->dimPicture)
							{
							XRenderFreePicture (dpy, w->dimPicture);
							w->dimPicture = None;
							}
							if (tmp < OPAQUE)
							w->dimPicture = solid_picture (dpy, True, (double)tmp/OPAQUE, 0.1, 0.1, 0.1);
						}
						else
						printf("arrrg, window not found\n");
					}
					/* check if Trans or Shadow property was changed */    
					else if (ev.xproperty.atom == opacityAtom || ev.xproperty.atom == shadowAtom)
					{
						/* reset mode and redraw window */
						win * w = find_win(dpy, ev.xproperty.window);
						if (w)
						{
                                                    unsigned int tmp;
                                                    unsigned int oldShadowSize = w->shadowSize;
							if (ev.xproperty.atom == opacityAtom)
							{
								tmp = get_opacity_prop(dpy, w, OPAQUE);
   								/*This will most probably happen if window is in fade - resulting in that the fade process isn't updated or broken -> we may have a wrong opacity in the future*/
   								/*if (tmp == w->opacity)
									break;*/ /*skip if opacity does not change*/
								if (fadeTrans)
								{
									static double start, finish, step;
									start = w->opacity*1.0/OPAQUE;
									finish = (tmp*1.0)/OPAQUE;
									
									if ( start > finish )
										step = fade_out_step;
									else
										step = fade_in_step;
									
									set_fade (dpy, w, start, finish, step, 0, False, True, True, False);
								break;
								}
								else {
									w->opacity = tmp;
								}
							}
							else
							{
								tmp = get_shadow_prop(dpy, w);
								if (tmp == w->shadowSize)
									break; /*skip if shadow does not change*/
								w->shadowSize = tmp;
								/* if (w->isInFade)
									break; */
							}
							if (w->shadow)
							{
								XRenderFreePicture (dpy, w->shadow);
								w->shadow = None;
							}
							if (oldShadowSize < w->shadowSize) /* this is important to catch size changes on cleanup with determine_mode*/
							{
								if( w->extents != None )
									XFixesDestroyRegion( dpy, w->extents );
								w->extents = win_extents (dpy, w);
								determine_mode(dpy, w);
							}
							else
							{
								determine_mode(dpy, w);
								if( w->extents != None )
									XFixesDestroyRegion( dpy, w->extents );
								w->extents = win_extents (dpy, w);
							}
						}
		}
                else if (ev.xproperty.atom == deskChangeAtom)
                {
                    /*just set global variable*/
                    unsigned int tmp = get_deskchange_prop(dpy, ev.xproperty.window);
                    printf("desk change, state:%d\n",tmp);
                }
                break;
	    default:
		if (ev.type == damage_event + XDamageNotify)
                {
                    /*                     printf("damaging win: %u\n",ev.xany.window);*/
		    damage_win (dpy, (XDamageNotifyEvent *) &ev);
		    repaint_root_overlay_window();
                }
		if (ev.type == xshape_event + ShapeNotify)
		{
		    shape_win (dpy, (XShapeEvent *) &ev);
		}
                if (ev.type == shapeEvent)
                {
                    win * w = find_win(dpy, ev.xany.window);
#if 1
                    if (w && w->shapable)
#endif
#if 0
                    if (w)
#endif
                    {
#if 0
                        XRectangle rect;
                        rect.x = ((XShapeEvent*)&ev)->x;
                        rect.y = ((XShapeEvent*)&ev)->y;
                        rect.width = ((XShapeEvent*)&ev)->width;
                        rect.height = ((XShapeEvent*)&ev)->height;
                        damage_shape(dpy, w, &rect);
#endif
#if 0
			if (w->shadowSize != 0)
			{
			    w->shadowSize = 0;
			    XRenderFreePicture (dpy, w->shadow);
                            w->shadow = None;
			    determine_mode(dpy, w);
                            if( w->extents != None )
                                XFixesDestroyRegion( dpy, w->extents );
                            w->extents = win_extents (dpy, w);
			}
#endif
                        /*this is hardly efficient, but a current workaraound
                        shaping support isn't that good so far (e.g. we lack shaped shadows)
                        IDEA: use XRender to scale/shift a copy of the window and then blur it*/
#if 1
                        if (w->picture)
                        {
                        clipChanged = True;
                        repair_win (dpy, w);
                        }
#endif
                    }
                }
		break;
	    }
	} while (QLength (dpy));
	if (allDamage && !autoRedirect)
	{
	    paint_all (dpy, allDamage);
            XSync (dpy, False);
	    allDamage = None;
	    clipChanged = False;
	}
    }

    XClearArea (dpy, root, 0, 0, 0, 0, True);
    XSync (dpy, False);
}