This file is indexed.

/usr/include/directfb/directfb.h is in libdirectfb-dev 1.2.10.0-5.1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6271
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
6295
6296
6297
6298
6299
6300
6301
6302
6303
6304
6305
6306
6307
6308
6309
6310
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
/*
   (c) Copyright 2001-2008  The world wide DirectFB Open Source Community (directfb.org)
   (c) Copyright 2000-2004  Convergence (integrated media) GmbH

   All rights reserved.

   Written by Denis Oliver Kropp <dok@directfb.org>,
              Andreas Hundt <andi@fischlustig.de>,
              Sven Neumann <neo@directfb.org>,
              Ville Syrjälä <syrjala@sci.fi> and
              Claudio Ciccani <klan@users.sf.net>.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef __DIRECTFB_H__
#define __DIRECTFB_H__


#ifdef __cplusplus
extern "C"
{
#endif

#include <dfb_types.h>
#include <sys/time.h> /* struct timeval */

#include <directfb_keyboard.h>

#include <direct/interface.h>

/*
 * Version handling.
 */
extern const unsigned int directfb_major_version;
extern const unsigned int directfb_minor_version;
extern const unsigned int directfb_micro_version;
extern const unsigned int directfb_binary_age;
extern const unsigned int directfb_interface_age;

/*
 * Check for a certain DirectFB version.
 * In case of an error a message is returned describing the mismatch.
 */
const char * DirectFBCheckVersion( unsigned int required_major,
                                   unsigned int required_minor,
                                   unsigned int required_micro );


/*
 * Main interface of DirectFB, created by DirectFBCreate().
 */
DECLARE_INTERFACE( IDirectFB )

/*
 * Interface to a surface object, being a graphics context for rendering and state control,
 * buffer operations, palette access and sub area translate'n'clip logic.
 */
DECLARE_INTERFACE( IDirectFBSurface )

/*
 * Interface for read/write access to the colors of a palette object and for cloning it.
 */
DECLARE_INTERFACE( IDirectFBPalette )

/*
 * Input device interface for keymap access, event buffers and state queries.
 */
DECLARE_INTERFACE( IDirectFBInputDevice )

/*
 * Layer interface for configuration, window stack usage or direct surface access, with shared/exclusive context.
 */
DECLARE_INTERFACE( IDirectFBDisplayLayer )

/*
 * Interface to a window object, controlling appearance and focus, positioning and stacking,
 * event buffers and surface access.
 */
DECLARE_INTERFACE( IDirectFBWindow )

/*
 * Interface to a local event buffer to send/receive events, wait for events, abort waiting or reset buffer.
 */
DECLARE_INTERFACE( IDirectFBEventBuffer )

/*
 * Font interface for getting metrics, measuring strings or single characters, query/choose encodings.
 */
DECLARE_INTERFACE( IDirectFBFont )

/*
 * Interface to an image provider, retrieving information about the image and rendering it to a surface.
 */
DECLARE_INTERFACE( IDirectFBImageProvider )

/*
 * Interface to a video provider for playback with advanced control and basic stream information.
 */
DECLARE_INTERFACE( IDirectFBVideoProvider )

/*
 * Data buffer interface, providing unified access to different kinds of data storage and live feed.
 */
DECLARE_INTERFACE( IDirectFBDataBuffer )

/*
 * Interface to different display outputs, encoders, connector settings, power management and synchronization.
 */
DECLARE_INTERFACE( IDirectFBScreen )

/*
 * OpenGL context of a surface.
 */
DECLARE_INTERFACE( IDirectFBGL )


/*
 * Return code of all interface methods and most functions
 *
 * Whenever a method has to return any information, it is done via output parameters. These are pointers to
 * primitive types such as <i>int *ret_num</i>, enumerated types like <i>DFBBoolean *ret_enabled</i>, structures
 * as in <i>DFBDisplayLayerConfig *ret_config</i>, just <i>void **ret_data</i> or other types...
 */
typedef enum {
     /*
      * Aliases for backward compatibility and uniform look in DirectFB code
      */
     DFB_OK              = DR_OK,                 /* No error occured. */
     DFB_FAILURE         = DR_FAILURE,            /* A general or unknown error occured. */
     DFB_INIT            = DR_INIT,               /* A general initialization error occured. */
     DFB_BUG             = DR_BUG,                /* Internal bug or inconsistency has been detected. */
     DFB_DEAD            = DR_DEAD,               /* Interface has a zero reference counter (available in debug mode). */
     DFB_UNSUPPORTED     = DR_UNSUPPORTED,        /* The requested operation or an argument is (currently) not supported. */
     DFB_UNIMPLEMENTED   = DR_UNIMPLEMENTED,      /* The requested operation is not implemented, yet. */
     DFB_ACCESSDENIED    = DR_ACCESSDENIED,       /* Access to the resource is denied. */
     DFB_INVAREA         = DR_INVAREA,            /* An invalid area has been specified or detected. */
     DFB_INVARG          = DR_INVARG,             /* An invalid argument has been specified. */
     DFB_NOSYSTEMMEMORY  = DR_NOLOCALMEMORY,      /* There's not enough system memory. */
     DFB_NOSHAREDMEMORY  = DR_NOSHAREDMEMORY,     /* There's not enough shared memory. */
     DFB_LOCKED          = DR_LOCKED,             /* The resource is (already) locked. */
     DFB_BUFFEREMPTY     = DR_BUFFEREMPTY,        /* The buffer is empty. */
     DFB_FILENOTFOUND    = DR_FILENOTFOUND,       /* The specified file has not been found. */
     DFB_IO              = DR_IO,                 /* A general I/O error occured. */
     DFB_BUSY            = DR_BUSY,               /* The resource or device is busy. */
     DFB_NOIMPL          = DR_NOIMPL,             /* No implementation for this interface or content type has been found. */
     DFB_TIMEOUT         = DR_TIMEOUT,            /* The operation timed out. */
     DFB_THIZNULL        = DR_THIZNULL,           /* 'thiz' pointer is NULL. */
     DFB_IDNOTFOUND      = DR_IDNOTFOUND,         /* No resource has been found by the specified id. */
     DFB_DESTROYED       = DR_DESTROYED,          /* The underlying object (e.g. a window or surface) has been destroyed. */
     DFB_FUSION          = DR_FUSION,             /* Internal fusion error detected, most likely related to IPC resources. */
     DFB_BUFFERTOOLARGE  = DR_BUFFERTOOLARGE,     /* Buffer is too large. */
     DFB_INTERRUPTED     = DR_INTERRUPTED,        /* The operation has been interrupted. */
     DFB_NOCONTEXT       = DR_NOCONTEXT,          /* No context available. */
     DFB_TEMPUNAVAIL     = DR_TEMPUNAVAIL,        /* Temporarily unavailable. */
     DFB_LIMITEXCEEDED   = DR_LIMITEXCEEDED,      /* Attempted to exceed limit, i.e. any kind of maximum size, count etc. */
     DFB_NOSUCHMETHOD    = DR_NOSUCHMETHOD,       /* Requested method is not known, e.g. to remote site. */
     DFB_NOSUCHINSTANCE  = DR_NOSUCHINSTANCE,     /* Requested instance is not known, e.g. to remote site. */
     DFB_ITEMNOTFOUND    = DR_ITEMNOTFOUND,       /* No such item found. */
     DFB_VERSIONMISMATCH = DR_VERSIONMISMATCH,    /* Some versions didn't match. */
     DFB_EOF             = DR_EOF,                /* Reached end of file. */
     DFB_SUSPENDED       = DR_SUSPENDED,          /* The requested object is suspended. */
     DFB_INCOMPLETE      = DR_INCOMPLETE,         /* The operation has been executed, but not completely. */
     DFB_NOCORE          = DR_NOCORE,             /* Core part not available. */

     /*
      * DirectFB specific result codes starting at (after) this offset
      */
     DFB__RESULT_OFFSET  = D_RESULT_TYPE_BASE( 'D','F','B' ),

     DFB_NOVIDEOMEMORY,  /* There's not enough video memory. */
     DFB_MISSINGFONT,    /* No font has been set. */
     DFB_MISSINGIMAGE,   /* No image has been set. */
} DFBResult;

/*
 * A boolean.
 */
typedef enum {
     DFB_FALSE = 0,
     DFB_TRUE  = !DFB_FALSE
} DFBBoolean;

/*
 * A point specified by x/y coordinates.
 */
typedef struct {
     int            x;   /* X coordinate of it */
     int            y;   /* Y coordinate of it */
} DFBPoint;

/*
 * A horizontal line specified by x and width.
 */
typedef struct {
     int            x;   /* X coordinate */
     int            w;   /* width of span */
} DFBSpan;

/*
 * A dimension specified by width and height.
 */
typedef struct {
     int            w;   /* width of it */
     int            h;   /* height of it */
} DFBDimension;

/*
 * A rectangle specified by a point and a dimension.
 */
typedef struct {
     int            x;   /* X coordinate of its top-left point */
     int            y;   /* Y coordinate of its top-left point */
     int            w;   /* width of it */
     int            h;   /* height of it */
} DFBRectangle;

/*
 * A rectangle specified by normalized coordinates.
 *
 * E.g. using 0.0, 0.0, 1.0, 1.0 would specify the whole screen.
 */
typedef struct {
     float          x;   /* normalized X coordinate */
     float          y;   /* normalized Y coordinate */
     float          w;   /* normalized width */
     float          h;   /* normalized height */
} DFBLocation;

/*
 * A region specified by two points.
 *
 * The defined region includes both endpoints.
 */
typedef struct {
     int            x1;  /* X coordinate of top-left point */
     int            y1;  /* Y coordinate of top-left point */
     int            x2;  /* X coordinate of lower-right point */
     int            y2;  /* Y coordinate of lower-right point */
} DFBRegion;

/*
 * Insets specify a distance from each edge of a rectangle.
 *
 * Positive values always mean 'outside'.
 */
typedef struct {
     int            l;   /* distance from left edge */
     int            t;   /* distance from top edge */
     int            r;   /* distance from right edge */
     int            b;   /* distance from bottom edge */
} DFBInsets;

/*
 * A triangle specified by three points.
 */
typedef struct {
     int            x1;  /* X coordinate of first edge */
     int            y1;  /* Y coordinate of first edge */
     int            x2;  /* X coordinate of second edge */
     int            y2;  /* Y coordinate of second edge */
     int            x3;  /* X coordinate of third edge */
     int            y3;  /* Y coordinate of third edge */
} DFBTriangle;

/*
 * A color defined by channels with 8bit each.
 */
typedef struct {
     u8             a;   /* alpha channel */
     u8             r;   /* red channel */
     u8             g;   /* green channel */
     u8             b;   /* blue channel */
} DFBColor;

/*
 * A color key defined by R,G,B and eventually a color index.
 */
typedef struct {
     u8             index;    /* color index */
     u8             r;        /* red channel */
     u8             g;        /* green channel */
     u8             b;        /* blue channel */
} DFBColorKey;

/*
 * A color defined by channels with 8bit each.
 */
typedef struct {
     u8             a;   /* alpha channel */
     u8             y;   /* luma channel */
     u8             u;   /* chroma channel */
     u8             v;   /* chroma channel */
} DFBColorYUV;

/*
 * Macro to compare two points.
 */
#define DFB_POINT_EQUAL(a,b)  ((a).x == (b).x &&  \
                               (a).y == (b).y)

/*
 * Macro to compare two rectangles.
 */
#define DFB_RECTANGLE_EQUAL(a,b)  ((a).x == (b).x &&  \
                                   (a).y == (b).y &&  \
                                   (a).w == (b).w &&  \
                                   (a).h == (b).h)

/*
 * Macro to compare two locations.
 */
#define DFB_LOCATION_EQUAL(a,b)  ((a).x == (b).x &&  \
                                  (a).y == (b).y &&  \
                                  (a).w == (b).w &&  \
                                  (a).h == (b).h)

/*
 * Macro to compare two regions.
 */
#define DFB_REGION_EQUAL(a,b)  ((a).x1 == (b).x1 &&  \
                                (a).y1 == (b).y1 &&  \
                                (a).x2 == (b).x2 &&  \
                                (a).y2 == (b).y2)

/*
 * Macro to compare two colors.
 */
#define DFB_COLOR_EQUAL(x,y)  ((x).a == (y).a &&  \
                               (x).r == (y).r &&  \
                               (x).g == (y).g &&  \
                               (x).b == (y).b)

/*
 * Macro to compare two color keys.
 */
#define DFB_COLORKEY_EQUAL(x,y) ((x).index == (y).index &&  \
                                 (x).r == (y).r &&  \
                                 (x).g == (y).g &&  \
                                 (x).b == (y).b)

/*
 * Print a description of the result code along with an
 * optional message that is put in front with a colon.
 */
DFBResult DirectFBError(
                             const char  *msg,    /* optional message */
                             DFBResult    result  /* result code to interpret */
                       );

/*
 * Behaves like DirectFBError, but shuts down the calling application.
 */
DFBResult DirectFBErrorFatal(
                             const char  *msg,    /* optional message */
                             DFBResult    result  /* result code to interpret */
                            );

/*
 * Returns a string describing 'result'.
 */
const char *DirectFBErrorString(
                         DFBResult    result
                      );

/*
 * Retrieves information about supported command-line flags in the
 * form of a user-readable string formatted suitable to be printed
 * as usage information.
 */
const char *DirectFBUsageString( void );

/*
 * Parses the command-line and initializes some variables. You
 * absolutely need to call this before doing anything else.
 * Removes all options used by DirectFB from argv.
 */
DFBResult DirectFBInit(
                         int         *argc,    /* pointer to main()'s argc */
                         char      *(*argv[])  /* pointer to main()'s argv */
                      );

/*
 * Sets configuration parameters supported on command line and in
 * config file. Can only be called before DirectFBCreate but after
 * DirectFBInit.
 */
DFBResult DirectFBSetOption(
                         const char  *name,
                         const char  *value
                      );

/*
 * Creates the super interface.
 */
DFBResult DirectFBCreate(
                          IDirectFB **interface  /* pointer to the
                                                    created interface */
                        );


typedef unsigned int DFBScreenID;
typedef unsigned int DFBDisplayLayerID;
typedef unsigned int DFBDisplayLayerSourceID;
typedef unsigned int DFBWindowID;
typedef unsigned int DFBInputDeviceID;
typedef unsigned int DFBTextEncodingID;

typedef u32 DFBDisplayLayerIDs;

/*
 * Maximum number of layer ids.
 */
#define DFB_DISPLAYLAYER_IDS_MAX             32

/*
 * Adds the id to the bitmask of layer ids.
 */
#define DFB_DISPLAYLAYER_IDS_ADD(ids,id)     (ids) |=  (1 << (id))

/*
 * Removes the id from the bitmask of layer ids.
 */
#define DFB_DISPLAYLAYER_IDS_REMOVE(ids,id)  (ids) &= ~(1 << (id))

/*
 * Checks if the bitmask of layer ids contains the id.
 */
#define DFB_DISPLAYLAYER_IDS_HAVE(ids,id)    ((ids) & (1 << (id)))

/*
 * Empties (clears) the bitmask of layer ids.
 */
#define DFB_DISPLAYLAYER_IDS_EMPTY(ids)      (ids) = 0

/*
 * Predefined text encoding IDs.
 */
#define DTEID_UTF8  0
#define DTEID_OTHER 1

/*
 * The cooperative level controls the super interface's behaviour
 * in functions like SetVideoMode or CreateSurface for the primary.
 */
typedef enum {
     DFSCL_NORMAL        = 0x00000000,  /* Normal shared access, primary
                                           surface will be the buffer of an
                                           implicitly created window at the
                                           resolution given by SetVideoMode().
                                           */
     DFSCL_FULLSCREEN,                  /* Application grabs the primary layer,
                                           SetVideoMode automates layer
                                           control. Primary surface is the
                                           primary layer surface. */
     DFSCL_EXCLUSIVE                    /* All but the primary layer will be
                                           disabled, the application has full
                                           control over layers if desired,
                                           other applications have no
                                           input/output/control. Primary
                                           surface is the primary layer
                                           surface. */
} DFBCooperativeLevel;

/*
 * Capabilities of a display layer.
 */
typedef enum {
     DLCAPS_NONE              = 0x00000000,

     DLCAPS_SURFACE           = 0x00000001,  /* The layer has a surface that can be drawn to. This
                                                may not be provided by layers that display realtime
                                                data, e.g. from an MPEG decoder chip. Playback
                                                control may be provided by an external API. */
     DLCAPS_OPACITY           = 0x00000002,  /* The layer supports blending with layer(s) below
                                                based on a global alpha factor. */
     DLCAPS_ALPHACHANNEL      = 0x00000004,  /* The layer supports blending with layer(s) below
                                                based on each pixel's alpha value. */
     DLCAPS_SCREEN_LOCATION   = 0x00000008,  /* The layer location on the screen can be changed,
                                                this includes position and size as normalized
                                                values. The default is 0.0f, 0.0f, 1.0f, 1.0f. */
     DLCAPS_FLICKER_FILTERING = 0x00000010,  /* Flicker filtering can be enabled for smooth output
                                                on interlaced display devices. */
     DLCAPS_DEINTERLACING     = 0x00000020,  /* The layer provides optional deinterlacing for
                                                displaying interlaced video data on progressive
                                                display devices. */
     DLCAPS_SRC_COLORKEY      = 0x00000040,  /* A specific color can be declared as transparent. */
     DLCAPS_DST_COLORKEY      = 0x00000080,  /* A specific color of layers below can be specified
                                                as the color of the only locations where the layer
                                                is visible. */
     DLCAPS_BRIGHTNESS        = 0x00000100,  /* Adjustment of brightness is supported. */
     DLCAPS_CONTRAST          = 0x00000200,  /* Adjustment of contrast is supported. */
     DLCAPS_HUE               = 0x00000400,  /* Adjustment of hue is supported. */
     DLCAPS_SATURATION        = 0x00000800,  /* Adjustment of saturation is supported. */
     DLCAPS_LEVELS            = 0x00001000,  /* Adjustment of the layer's level
                                                (z position) is supported. */
     DLCAPS_FIELD_PARITY      = 0x00002000,  /* Field parity can be selected */
     DLCAPS_WINDOWS           = 0x00004000,  /* Hardware window support. */
     DLCAPS_SOURCES           = 0x00008000,  /* Sources can be selected. */
     DLCAPS_ALPHA_RAMP        = 0x00010000,  /* Alpha values for formats with one or two alpha bits
                                                can be chosen, i.e. using ARGB1555 or ARGB2554 the
                                                user can define the meaning of the two or four
                                                possibilities. In short, this feature provides a
                                                lookup table for the alpha bits of these formats.
                                                See also IDirectFBSurface::SetAlphaRamp(). */
     DLCAPS_PREMULTIPLIED     = 0x00020000,  /* Surfaces with premultiplied alpha are supported. */

     DLCAPS_SCREEN_POSITION   = 0x00100000,
     DLCAPS_SCREEN_SIZE       = 0x00200000,

     DLCAPS_CLIP_REGIONS      = 0x00400000,  /* Supports IDirectFBDisplayLayer::SetClipRegions(). */

     DLCAPS_ALL               = 0x0073FFFF
} DFBDisplayLayerCapabilities;

/*
 * Capabilities of a screen.
 */
typedef enum {
     DSCCAPS_NONE             = 0x00000000,

     DSCCAPS_VSYNC            = 0x00000001,  /* Synchronization with the
                                                vertical retrace supported. */
     DSCCAPS_POWER_MANAGEMENT = 0x00000002,  /* Power management supported. */

     DSCCAPS_MIXERS           = 0x00000010,  /* Has mixers. */
     DSCCAPS_ENCODERS         = 0x00000020,  /* Has encoders. */
     DSCCAPS_OUTPUTS          = 0x00000040,  /* Has outputs. */

     DSCCAPS_ALL              = 0x00000073
} DFBScreenCapabilities;

/*
 * Used to enable some capabilities like flicker filtering or colorkeying.
 */
typedef enum {
     DLOP_NONE                = 0x00000000,  /* None of these. */
     DLOP_ALPHACHANNEL        = 0x00000001,  /* Make usage of alpha channel
                                                for blending on a pixel per
                                                pixel basis. */
     DLOP_FLICKER_FILTERING   = 0x00000002,  /* Enable flicker filtering. */
     DLOP_DEINTERLACING       = 0x00000004,  /* Enable deinterlacing of an
                                                interlaced (video) source. */
     DLOP_SRC_COLORKEY        = 0x00000008,  /* Enable source color key. */
     DLOP_DST_COLORKEY        = 0x00000010,  /* Enable dest. color key. */
     DLOP_OPACITY             = 0x00000020,  /* Make usage of the global alpha
                                                factor set by SetOpacity. */
     DLOP_FIELD_PARITY        = 0x00000040   /* Set field parity */
} DFBDisplayLayerOptions;

/*
 * Layer Buffer Mode.
 */
typedef enum {
     DLBM_UNKNOWN    = 0x00000000,

     DLBM_FRONTONLY  = 0x00000001,      /* no backbuffer */
     DLBM_BACKVIDEO  = 0x00000002,      /* backbuffer in video memory */
     DLBM_BACKSYSTEM = 0x00000004,      /* backbuffer in system memory */
     DLBM_TRIPLE     = 0x00000008,      /* triple buffering */
     DLBM_WINDOWS    = 0x00000010       /* no layer buffers at all,
                                           using buffer of each window */
} DFBDisplayLayerBufferMode;

/*
 * Flags defining which fields of a DFBSurfaceDescription are valid.
 */
typedef enum {
     DSDESC_NONE         = 0x00000000,  /* none of these */

     DSDESC_CAPS         = 0x00000001,  /* caps field is valid */
     DSDESC_WIDTH        = 0x00000002,  /* width field is valid */
     DSDESC_HEIGHT       = 0x00000004,  /* height field is valid */
     DSDESC_PIXELFORMAT  = 0x00000008,  /* pixelformat field is valid */
     DSDESC_PREALLOCATED = 0x00000010,  /* Surface uses data that has been
                                           preallocated by the application.
                                           The field array 'preallocated'
                                           has to be set using the first
                                           element for the front buffer
                                           and eventually the second one
                                           for the back buffer. */
     DSDESC_PALETTE      = 0x00000020,  /* Initialize the surfaces palette
                                           with the entries specified in the
                                           description. */

     DSDESC_RESOURCE_ID  = 0x00000100,  /* user defined resource id for general purpose
                                           surfaces is specified, or resource id of window,
                                           layer, user is returned */

     DSDESC_ALL          = 0x0000013F   /* all of these */
} DFBSurfaceDescriptionFlags;

/*
 * Flags defining which fields of a DFBPaletteDescription are valid.
 */
typedef enum {
     DPDESC_CAPS         = 0x00000001,  /* Specify palette capabilities. */
     DPDESC_SIZE         = 0x00000002,  /* Specify number of entries. */
     DPDESC_ENTRIES      = 0x00000004   /* Initialize the palette with the
                                           entries specified in the
                                           description. */
} DFBPaletteDescriptionFlags;

/*
 * The surface capabilities.
 */
typedef enum {
     DSCAPS_NONE          = 0x00000000,  /* None of these. */

     DSCAPS_PRIMARY       = 0x00000001,  /* It's the primary surface. */
     DSCAPS_SYSTEMONLY    = 0x00000002,  /* Surface data is permanently stored in system memory.<br>
                                            There's no video memory allocation/storage. */
     DSCAPS_VIDEOONLY     = 0x00000004,  /* Surface data is permanently stored in video memory.<br>
                                            There's no system memory allocation/storage. */
     DSCAPS_DOUBLE        = 0x00000010,  /* Surface is double buffered */
     DSCAPS_SUBSURFACE    = 0x00000020,  /* Surface is just a sub area of another
                                            one sharing the surface data. */
     DSCAPS_INTERLACED    = 0x00000040,  /* Each buffer contains interlaced video (or graphics)
                                            data consisting of two fields.<br>
                                            Their lines are stored interleaved. One field's height
                                            is a half of the surface's height. */
     DSCAPS_SEPARATED     = 0x00000080,  /* For usage with DSCAPS_INTERLACED.<br>
                                            DSCAPS_SEPARATED specifies that the fields are NOT
                                            interleaved line by line in the buffer.<br>
                                            The first field is followed by the second one. */
     DSCAPS_STATIC_ALLOC  = 0x00000100,  /* The amount of video or system memory allocated for the
                                            surface is never less than its initial value. This way
                                            a surface can be resized (smaller and bigger up to the
                                            initial size) without reallocation of the buffers. It's
                                            useful for surfaces that need a guaranteed space in
                                            video memory after resizing. */
     DSCAPS_TRIPLE        = 0x00000200,  /* Surface is triple buffered. */

     DSCAPS_PREMULTIPLIED = 0x00001000,  /* Surface stores data with premultiplied alpha. */

     DSCAPS_DEPTH         = 0x00010000,  /* A depth buffer is allocated. */

     DSCAPS_SHARED        = 0x00100000,  /* The surface will be accessible among processes. */

     DSCAPS_ALL           = 0x001113F7,  /* All of these. */


     DSCAPS_FLIPPING      = DSCAPS_DOUBLE | DSCAPS_TRIPLE /* Surface needs Flip() calls to make
                                                             updates/changes visible/usable. */
} DFBSurfaceCapabilities;

/*
 * The palette capabilities.
 */
typedef enum {
     DPCAPS_NONE         = 0x00000000   /* None of these. */
} DFBPaletteCapabilities;

/*
 * Flags controlling drawing commands.
 */
typedef enum {
     DSDRAW_NOFX               = 0x00000000, /* uses none of the effects */
     DSDRAW_BLEND              = 0x00000001, /* uses alpha from color */
     DSDRAW_DST_COLORKEY       = 0x00000002, /* write to destination only if the destination pixel
                                                matches the destination color key */
     DSDRAW_SRC_PREMULTIPLY    = 0x00000004, /* multiplies the color's rgb channels by the alpha
                                                channel before drawing */
     DSDRAW_DST_PREMULTIPLY    = 0x00000008, /* modulates the dest. color with the dest. alpha */
     DSDRAW_DEMULTIPLY         = 0x00000010, /* divides the color by the alpha before writing the
                                                data to the destination */
     DSDRAW_XOR                = 0x00000020  /* bitwise xor the destination pixels with the
                                                specified color after premultiplication */
} DFBSurfaceDrawingFlags;

/*
 * Flags controlling blitting commands.
 */
typedef enum {
     DSBLIT_NOFX               = 0x00000000, /* uses none of the effects */
     DSBLIT_BLEND_ALPHACHANNEL = 0x00000001, /* enables blending and uses
                                                alphachannel from source */
     DSBLIT_BLEND_COLORALPHA   = 0x00000002, /* enables blending and uses
                                                alpha value from color */
     DSBLIT_COLORIZE           = 0x00000004, /* modulates source color with
                                                the color's r/g/b values */
     DSBLIT_SRC_COLORKEY       = 0x00000008, /* don't blit pixels matching the source color key */
     DSBLIT_DST_COLORKEY       = 0x00000010, /* write to destination only if the destination pixel
                                                matches the destination color key */
     DSBLIT_SRC_PREMULTIPLY    = 0x00000020, /* modulates the source color with the (modulated)
                                                source alpha */
     DSBLIT_DST_PREMULTIPLY    = 0x00000040, /* modulates the dest. color with the dest. alpha */
     DSBLIT_DEMULTIPLY         = 0x00000080, /* divides the color by the alpha before writing the
                                                data to the destination */
     DSBLIT_DEINTERLACE        = 0x00000100, /* deinterlaces the source during blitting by reading
                                                only one field (every second line of full
                                                image) scaling it vertically by factor two */
     DSBLIT_SRC_PREMULTCOLOR   = 0x00000200, /* modulates the source color with the color alpha */
     DSBLIT_XOR                = 0x00000400, /* bitwise xor the destination pixels with the
                                                source pixels after premultiplication */
     DSBLIT_INDEX_TRANSLATION  = 0x00000800, /* do fast indexed to indexed translation,
                                                this flag is mutual exclusive with all others */
     DSBLIT_ROTATE180          = 0x00001000, /* rotate the image by 180 degree */
     DSBLIT_COLORKEY_PROTECT   = 0x00010000, /* make sure written pixels don't match color key (internal only ATM) */
     DSBLIT_SRC_MASK_ALPHA     = 0x00100000, /* modulate source alpha channel with alpha channel from source mask,
                                                see also IDirectFBSurface::SetSourceMask() */
     DSBLIT_SRC_MASK_COLOR     = 0x00200000, /* modulate source color channels with color channels from source mask,
                                                see also IDirectFBSurface::SetSourceMask() */
} DFBSurfaceBlittingFlags;

/*
 * Options for drawing and blitting operations. Not mandatory for acceleration.
 */
typedef enum {
     DSRO_NONE                 = 0x00000000, /* None of these. */

     DSRO_SMOOTH_UPSCALE       = 0x00000001, /* Use interpolation for upscale StretchBlit(). */
     DSRO_SMOOTH_DOWNSCALE     = 0x00000002, /* Use interpolation for downscale StretchBlit(). */
     DSRO_MATRIX               = 0x00000004, /* Use the transformation matrix set via IDirectFBSurface::SetMatrix(). */
     DSRO_ANTIALIAS            = 0x00000008, /* Enable anti-aliasing for edges (alphablend must be enabled). */

     DSRO_ALL                  = 0x0000000F  /* All of these. */
} DFBSurfaceRenderOptions;

/*
 * Mask of accelerated functions.
 */
typedef enum {
     DFXL_NONE           = 0x00000000,  /* None of these. */

     DFXL_FILLRECTANGLE  = 0x00000001,  /* FillRectangle() is accelerated. */
     DFXL_DRAWRECTANGLE  = 0x00000002,  /* DrawRectangle() is accelerated. */
     DFXL_DRAWLINE       = 0x00000004,  /* DrawLine() is accelerated. */
     DFXL_FILLTRIANGLE   = 0x00000008,  /* FillTriangle() is accelerated. */

     DFXL_BLIT           = 0x00010000,  /* Blit() and TileBlit() are accelerated. */
     DFXL_STRETCHBLIT    = 0x00020000,  /* StretchBlit() is accelerated. */
     DFXL_TEXTRIANGLES   = 0x00040000,  /* TextureTriangles() is accelerated. */

     DFXL_DRAWSTRING     = 0x01000000,  /* DrawString() and DrawGlyph() are accelerated. */


     DFXL_ALL            = 0x0107000F,  /* All drawing/blitting functions. */
     DFXL_ALL_DRAW       = 0x0000000F,  /* All drawing functions. */
     DFXL_ALL_BLIT       = 0x01070000,  /* All blitting functions. */
} DFBAccelerationMask;


/*
 * @internal
 */
#define DFB_DRAWING_FUNCTION(a)    ((a) & 0x0000FFFF)

/*
 * @internal
 */
#define DFB_BLITTING_FUNCTION(a)   ((a) & 0xFFFF0000)

/*
 * Type of display layer for basic classification.
 * Values may be or'ed together.
 */
typedef enum {
     DLTF_NONE           = 0x00000000,  /* Unclassified, no specific type. */

     DLTF_GRAPHICS       = 0x00000001,  /* Can be used for graphics output. */
     DLTF_VIDEO          = 0x00000002,  /* Can be used for live video output.*/
     DLTF_STILL_PICTURE  = 0x00000004,  /* Can be used for single frames. */
     DLTF_BACKGROUND     = 0x00000008,  /* Can be used as a background layer.*/

     DLTF_ALL            = 0x0000000F   /* All type flags set. */
} DFBDisplayLayerTypeFlags;

/*
 * Type of input device for basic classification.
 * Values may be or'ed together.
 */
typedef enum {
     DIDTF_NONE          = 0x00000000,  /* Unclassified, no specific type. */

     DIDTF_KEYBOARD      = 0x00000001,  /* Can act as a keyboard. */
     DIDTF_MOUSE         = 0x00000002,  /* Can be used as a mouse. */
     DIDTF_JOYSTICK      = 0x00000004,  /* Can be used as a joystick. */
     DIDTF_REMOTE        = 0x00000008,  /* Is a remote control. */
     DIDTF_VIRTUAL       = 0x00000010,  /* Is a virtual input device. */

     DIDTF_ALL           = 0x0000001F   /* All type flags set. */
} DFBInputDeviceTypeFlags;

/*
 * Basic input device features.
 */
typedef enum {
     DICAPS_KEYS         = 0x00000001,  /* device supports key events */
     DICAPS_AXES         = 0x00000002,  /* device supports axis events */
     DICAPS_BUTTONS      = 0x00000004,  /* device supports button events */

     DICAPS_ALL          = 0x00000007   /* all capabilities */
} DFBInputDeviceCapabilities;

/*
 * Identifier (index) for e.g. mouse or joystick buttons.
 */
typedef enum {
     DIBI_LEFT           = 0x00000000,  /* left mouse button */
     DIBI_RIGHT          = 0x00000001,  /* right mouse button */
     DIBI_MIDDLE         = 0x00000002,  /* middle mouse button */

     DIBI_FIRST          = DIBI_LEFT,   /* other buttons:
                                           DIBI_FIRST + zero based index */
     DIBI_LAST           = 0x0000001F   /* 32 buttons maximum */
} DFBInputDeviceButtonIdentifier;

/*
 * Axis identifier (index) for e.g. mouse or joystick.
 *
 * The X, Y and Z axis are predefined. To access other axes,
 * use DIAI_FIRST plus a zero based index, e.g. the 4th axis
 * would be (DIAI_FIRST + 3).
 */
typedef enum {
     DIAI_X              = 0x00000000,  /* X axis */
     DIAI_Y              = 0x00000001,  /* Y axis */
     DIAI_Z              = 0x00000002,  /* Z axis */

     DIAI_FIRST          = DIAI_X,      /* other axis:
                                           DIAI_FIRST + zero based index */
     DIAI_LAST           = 0x0000001F   /* 32 axes maximum */
} DFBInputDeviceAxisIdentifier;

/*
 * Flags defining which fields of a DFBWindowDescription are valid.
 */
typedef enum {
     DWDESC_CAPS         = 0x00000001,  /* caps field is valid */
     DWDESC_WIDTH        = 0x00000002,  /* width field is valid */
     DWDESC_HEIGHT       = 0x00000004,  /* height field is valid */
     DWDESC_PIXELFORMAT  = 0x00000008,  /* pixelformat field is valid */
     DWDESC_POSX         = 0x00000010,  /* posx field is valid */
     DWDESC_POSY         = 0x00000020,  /* posy field is valid */
     DWDESC_SURFACE_CAPS = 0x00000040,  /* Create the window surface with
                                           special capabilities. */
     DWDESC_PARENT       = 0x00000080,  /* This window has a parent according to parent_id field. */
     DWDESC_OPTIONS      = 0x00000100,  /* Initial window options have been set. */
     DWDESC_STACKING     = 0x00000200,  /* Initial stacking class has been set. */

     DWDESC_RESOURCE_ID  = 0x00001000,  /* Resource id for window surface creation has been set. */
} DFBWindowDescriptionFlags;

/*
 * Flags defining which fields of a DFBDataBufferDescription are valid.
 */
typedef enum {
     DBDESC_FILE         = 0x00000001,  /* Create a static buffer for the
                                           specified filename. */
     DBDESC_MEMORY       = 0x00000002   /* Create a static buffer for the
                                           specified memory area. */
} DFBDataBufferDescriptionFlags;

/*
 * Capabilities a window can have.
 */
typedef enum {
     DWCAPS_NONE         = 0x00000000,  /* None of these. */
     DWCAPS_ALPHACHANNEL = 0x00000001,  /* The window has an alphachannel
                                           for pixel-per-pixel blending. */
     DWCAPS_DOUBLEBUFFER = 0x00000002,  /* The window's surface is double
                                           buffered. This is very useful
                                           to avoid visibility of content
                                           that is still in preparation.
                                           Normally a window's content can
                                           get visible before an update if
                                           there is another reason causing
                                           a window stack repaint. */
     DWCAPS_INPUTONLY    = 0x00000004,  /* The window has no surface.
                                           You can not draw to it but it
                                           receives events */
     DWCAPS_NODECORATION = 0x00000008,  /* The window won't be decorated. */

     DWCAPS_COLOR        = 0x00000020,  /* The window has no buffer;
                                           it consumes no backing store.
                                           It is filled with a constant color
                                           and it receives events */

     DWCAPS_NOFOCUS      = 0x00000100,  /* Window will never get focus or receive key events, unless it grabs them. */

     DWCAPS_ALL          = 0x0000012F   /* All of these. */
} DFBWindowCapabilities;

/*
 * Flags controlling the appearance and behaviour of the window.
 */
typedef enum {
     DWOP_NONE           = 0x00000000,  /* none of these */
     DWOP_COLORKEYING    = 0x00000001,  /* enable color key */
     DWOP_ALPHACHANNEL   = 0x00000002,  /* enable alpha blending using the
                                           window's alpha channel */
     DWOP_OPAQUE_REGION  = 0x00000004,  /* overrides DWOP_ALPHACHANNEL for the
                                           region set by SetOpaqueRegion() */
     DWOP_SHAPED         = 0x00000008,  /* window doesn't receive mouse events for
                                           invisible regions, must be used with
                                           DWOP_ALPHACHANNEL or DWOP_COLORKEYING */
     DWOP_KEEP_POSITION  = 0x00000010,  /* window can't be moved
                                           with the mouse */
     DWOP_KEEP_SIZE      = 0x00000020,  /* window can't be resized
                                           with the mouse */
     DWOP_KEEP_STACKING  = 0x00000040,  /* window can't be raised
                                           or lowered with the mouse */
     DWOP_GHOST          = 0x00001000,  /* never get focus or input,
                                           clicks will go through,
                                           implies DWOP_KEEP... */
     DWOP_INDESTRUCTIBLE = 0x00002000,  /* window can't be destroyed
                                           by internal shortcut */
     DWOP_SCALE          = 0x00010000,  /* Surface won't be changed if window size on screen changes. The surface
                                           can be resized separately using IDirectFBWindow::ResizeSurface(). */

     DWOP_KEEP_ABOVE     = 0x00100000,  /* Keep window above parent window. */
     DWOP_KEEP_UNDER     = 0x00200000,  /* Keep window under parent window. */

     DWOP_ALL            = 0x0031307F   /* all possible options */
} DFBWindowOptions;

/*
 * The stacking class restricts the stacking order of windows.
 */
typedef enum {
     DWSC_MIDDLE         = 0x00000000,  /* This is the default stacking
                                           class of new windows. */
     DWSC_UPPER          = 0x00000001,  /* Window is always above windows
                                           in the middle stacking class.
                                           Only windows that are also in
                                           the upper stacking class can
                                           get above them. */
     DWSC_LOWER          = 0x00000002   /* Window is always below windows
                                           in the middle stacking class.
                                           Only windows that are also in
                                           the lower stacking class can
                                           get below them. */
} DFBWindowStackingClass;


/*
 * Flags describing how to load a font.
 *
 * These flags describe how a font is loaded and affect how the
 * glyphs are drawn. There is no way to change this after the font
 * has been loaded. If you need to render a font with different
 * attributes, you have to create multiple FontProviders of the
 * same font file.
 */
typedef enum {
     DFFA_NONE           = 0x00000000,  /* none of these flags */
     DFFA_NOKERNING      = 0x00000001,  /* don't use kerning */
     DFFA_NOHINTING      = 0x00000002,  /* don't use hinting */
     DFFA_MONOCHROME     = 0x00000004,  /* don't use anti-aliasing */
     DFFA_NOCHARMAP      = 0x00000008,  /* no char map, glyph indices are
                                           specified directly */
     DFFA_FIXEDCLIP      = 0x00000010   /* width fixed advance, clip to it */
} DFBFontAttributes;

/*
 * Flags defining which fields of a DFBFontDescription are valid.
 */
typedef enum {
     DFDESC_ATTRIBUTES   = 0x00000001,  /* attributes field is valid */
     DFDESC_HEIGHT       = 0x00000002,  /* height is specified */
     DFDESC_WIDTH        = 0x00000004,  /* width is specified */
     DFDESC_INDEX        = 0x00000008,  /* index is specified */
     DFDESC_FIXEDADVANCE = 0x00000010,  /* specify a fixed advance overriding
                                           any character advance of fixed or
                                           proportional fonts */
     DFDESC_FRACT_HEIGHT = 0x00000020,  /* fractional height is set */
     DFDESC_FRACT_WIDTH  = 0x00000040,  /* fractional width is set */
} DFBFontDescriptionFlags;

/*
 * Description of how to load glyphs from a font file.
 *
 * The attributes control how the glyphs are rendered. Width and height can be used to specify the
 * desired face size in pixels. If you are loading a non-scalable font, you shouldn't specify a
 * font size.
 *
 * Please note that the height value in the DFBFontDescription doesn't correspond to the height
 * returned by IDirectFBFont::GetHeight().
 *
 * The index field controls which face is loaded from a font file that provides a collection of
 * faces. This is rarely needed.
 *
 * Fractional sizes (fract_height and fract_width) are 26.6 fixed point integers and override
 * the pixel sizes if both are specified.
 */
typedef struct {
     DFBFontDescriptionFlags            flags;

     DFBFontAttributes                  attributes;
     int                                height;
     int                                width;
     unsigned int                       index;
     int                                fixed_advance;

     int                                fract_height;
     int                                fract_width;
} DFBFontDescription;

/*
 * @internal
 *
 * Encodes format constants in the following way (bit 31 - 0):
 *
 * lkjj:hhgg | gfff:eeed | cccc:bbbb | baaa:aaaa
 *
 * a) pixelformat index<br>
 * b) effective color (or index) bits per pixel of format<br>
 * c) effective alpha bits per pixel of format<br>
 * d) alpha channel present<br>
 * e) bytes per "pixel in a row" (1/8 fragment, i.e. bits)<br>
 * f) bytes per "pixel in a row" (decimal part, i.e. bytes)<br>
 * g) smallest number of pixels aligned to byte boundary (minus one)<br>
 * h) multiplier for planes minus one (1/4 fragment)<br>
 * j) multiplier for planes minus one (decimal part)<br>
 * k) color and/or alpha lookup table present<br>
 * l) alpha channel is inverted
 */
#define DFB_SURFACE_PIXELFORMAT( index, color_bits, alpha_bits, has_alpha,     \
                                 row_bits, row_bytes, align, mul_f, mul_d,     \
                                 has_lut, inv_alpha )                          \
     ( (((index     ) & 0x7F)      ) |                                         \
       (((color_bits) & 0x1F) <<  7) |                                         \
       (((alpha_bits) & 0x0F) << 12) |                                         \
       (((has_alpha ) ? 1 :0) << 16) |                                         \
       (((row_bits  ) & 0x07) << 17) |                                         \
       (((row_bytes ) & 0x07) << 20) |                                         \
       (((align     ) & 0x07) << 23) |                                         \
       (((mul_f     ) & 0x03) << 26) |                                         \
       (((mul_d     ) & 0x03) << 28) |                                         \
       (((has_lut   ) ? 1 :0) << 30) |                                         \
       (((inv_alpha ) ? 1 :0) << 31) )

/*
 * Pixel format of a surface.
 */
typedef enum {
     DSPF_UNKNOWN   = 0x00000000,  /* unknown or unspecified format */

     /* 16 bit  ARGB (2 byte, alpha 1@15, red 5@10, green 5@5, blue 5@0) */
     DSPF_ARGB1555  = DFB_SURFACE_PIXELFORMAT(  0, 15, 1, 1, 0, 2, 0, 0, 0, 0, 0 ),

     /* 16 bit   RGB (2 byte, red 5@11, green 6@5, blue 5@0) */
     DSPF_RGB16     = DFB_SURFACE_PIXELFORMAT(  1, 16, 0, 0, 0, 2, 0, 0, 0, 0, 0 ),

     /* 24 bit   RGB (3 byte, red 8@16, green 8@8, blue 8@0) */
     DSPF_RGB24     = DFB_SURFACE_PIXELFORMAT(  2, 24, 0, 0, 0, 3, 0, 0, 0, 0, 0 ),

     /* 24 bit   RGB (4 byte, nothing@24, red 8@16, green 8@8, blue 8@0) */
     DSPF_RGB32     = DFB_SURFACE_PIXELFORMAT(  3, 24, 0, 0, 0, 4, 0, 0, 0, 0, 0 ),

     /* 32 bit  ARGB (4 byte, alpha 8@24, red 8@16, green 8@8, blue 8@0) */
     DSPF_ARGB      = DFB_SURFACE_PIXELFORMAT(  4, 24, 8, 1, 0, 4, 0, 0, 0, 0, 0 ),

     /*  8 bit alpha (1 byte, alpha 8@0), e.g. anti-aliased glyphs */
     DSPF_A8        = DFB_SURFACE_PIXELFORMAT(  5,  0, 8, 1, 0, 1, 0, 0, 0, 0, 0 ),

     /* 16 bit   YUV (4 byte/ 2 pixel, macropixel contains CbYCrY [31:0]) */
     DSPF_YUY2      = DFB_SURFACE_PIXELFORMAT(  6, 16, 0, 0, 0, 2, 0, 0, 0, 0, 0 ),

     /*  8 bit   RGB (1 byte, red 3@5, green 3@2, blue 2@0) */
     DSPF_RGB332    = DFB_SURFACE_PIXELFORMAT(  7,  8, 0, 0, 0, 1, 0, 0, 0, 0, 0 ),

     /* 16 bit   YUV (4 byte/ 2 pixel, macropixel contains YCbYCr [31:0]) */
     DSPF_UYVY      = DFB_SURFACE_PIXELFORMAT(  8, 16, 0, 0, 0, 2, 0, 0, 0, 0, 0 ),

     /* 12 bit   YUV (8 bit Y plane followed by 8 bit quarter size U/V planes) */
     DSPF_I420      = DFB_SURFACE_PIXELFORMAT(  9, 12, 0, 0, 0, 1, 0, 2, 0, 0, 0 ),

     /* 12 bit   YUV (8 bit Y plane followed by 8 bit quarter size V/U planes) */
     DSPF_YV12      = DFB_SURFACE_PIXELFORMAT( 10, 12, 0, 0, 0, 1, 0, 2, 0, 0, 0 ),

     /*  8 bit   LUT (8 bit color and alpha lookup from palette) */
     DSPF_LUT8      = DFB_SURFACE_PIXELFORMAT( 11,  8, 0, 1, 0, 1, 0, 0, 0, 1, 0 ),

     /*  8 bit  ALUT (1 byte, alpha 4@4, color lookup 4@0) */
     DSPF_ALUT44    = DFB_SURFACE_PIXELFORMAT( 12,  4, 4, 1, 0, 1, 0, 0, 0, 1, 0 ),

     /* 32 bit  ARGB (4 byte, inv. alpha 8@24, red 8@16, green 8@8, blue 8@0) */
     DSPF_AiRGB     = DFB_SURFACE_PIXELFORMAT( 13, 24, 8, 1, 0, 4, 0, 0, 0, 0, 1 ),

     /*  1 bit alpha (1 byte/ 8 pixel, most significant bit used first) */
     DSPF_A1        = DFB_SURFACE_PIXELFORMAT( 14,  0, 1, 1, 1, 0, 7, 0, 0, 0, 0 ),

     /* 12 bit   YUV (8 bit Y plane followed by one 16 bit quarter size Cb|Cr [7:0|7:0] plane) */
     DSPF_NV12      = DFB_SURFACE_PIXELFORMAT( 15, 12, 0, 0, 0, 1, 0, 2, 0, 0, 0 ),

     /* 16 bit   YUV (8 bit Y plane followed by one 16 bit half width Cb|Cr [7:0|7:0] plane) */
     DSPF_NV16      = DFB_SURFACE_PIXELFORMAT( 16, 24, 0, 0, 0, 1, 0, 0, 1, 0, 0 ),

     /* 16 bit  ARGB (2 byte, alpha 2@14, red 5@9, green 5@4, blue 4@0) */
     DSPF_ARGB2554  = DFB_SURFACE_PIXELFORMAT( 17, 14, 2, 1, 0, 2, 0, 0, 0, 0, 0 ),

     /* 16 bit  ARGB (2 byte, alpha 4@12, red 4@8, green 4@4, blue 4@0) */
     DSPF_ARGB4444  = DFB_SURFACE_PIXELFORMAT( 18, 12, 4, 1, 0, 2, 0, 0, 0, 0, 0 ),

     /* 12 bit   YUV (8 bit Y plane followed by one 16 bit quarter size Cr|Cb [7:0|7:0] plane) */
     DSPF_NV21      = DFB_SURFACE_PIXELFORMAT( 19, 12, 0, 0, 0, 1, 0, 2, 0, 0, 0 ),

     /* 32 bit  AYUV (4 byte, alpha 8@24, Y 8@16, Cb 8@8, Cr 8@0) */
     DSPF_AYUV      = DFB_SURFACE_PIXELFORMAT( 20, 24, 8, 1, 0, 4, 0, 0, 0, 0, 0 ),

     /*  4 bit alpha (1 byte/ 2 pixel, more significant nibble used first) */
     DSPF_A4        = DFB_SURFACE_PIXELFORMAT( 21,  0, 4, 1, 4, 0, 1, 0, 0, 0, 0 ),

     /*  1 bit alpha (3 byte/  alpha 1@18, red 6@16, green 6@6, blue 6@0) */
     DSPF_ARGB1666  = DFB_SURFACE_PIXELFORMAT( 22, 18, 1, 1, 0, 3, 0, 0, 0, 0, 0 ),

     /*  6 bit alpha (3 byte/  alpha 6@18, red 6@16, green 6@6, blue 6@0) */
     DSPF_ARGB6666  = DFB_SURFACE_PIXELFORMAT( 23, 18, 6, 1, 0, 3, 0, 0, 0, 0, 0 ),

     /*  6 bit   RGB (3 byte/   red 6@16, green 6@6, blue 6@0) */
     DSPF_RGB18     = DFB_SURFACE_PIXELFORMAT( 24, 18, 0, 0, 0, 3, 0, 0, 0, 0, 0 ),

     /*  2 bit   LUT (1 byte/ 4 pixel, 2 bit color and alpha lookup from palette) */
     DSPF_LUT2      = DFB_SURFACE_PIXELFORMAT( 25,  2, 0, 1, 2, 0, 3, 0, 0, 1, 0 ),

     /* 16 bit   RGB (2 byte, nothing @12, red 4@8, green 4@4, blue 4@0) */
     DSPF_RGB444    = DFB_SURFACE_PIXELFORMAT( 26, 12, 0, 0, 0, 2, 0, 0, 0, 0, 0 ),

     /* 16 bit   RGB (2 byte, nothing @15, red 5@10, green 5@5, blue 5@0) */
     DSPF_RGB555    = DFB_SURFACE_PIXELFORMAT( 27, 15, 0, 0, 0, 2, 0, 0, 0, 0, 0 ),

     /* 16 bit   BGR (2 byte, nothing @15, blue 5@10, green 5@5, red 5@0) */
     DSPF_BGR555    = DFB_SURFACE_PIXELFORMAT( 28, 15, 0, 0, 0, 2, 0, 0, 0, 0, 0 )

} DFBSurfacePixelFormat;

/* Number of pixelformats defined */
#define DFB_NUM_PIXELFORMATS            29

/* These macros extract information about the pixel format. */
#define DFB_PIXELFORMAT_INDEX(fmt)      (((fmt) & 0x0000007F)      )

#define DFB_COLOR_BITS_PER_PIXEL(fmt)   (((fmt) & 0x00000F80) >>  7)

#define DFB_ALPHA_BITS_PER_PIXEL(fmt)   (((fmt) & 0x0000F000) >> 12)

#define DFB_PIXELFORMAT_HAS_ALPHA(fmt)  (((fmt) & 0x00010000) !=  0)

#define DFB_BITS_PER_PIXEL(fmt)         (((fmt) & 0x007E0000) >> 17)

#define DFB_BYTES_PER_PIXEL(fmt)        (((fmt) & 0x00700000) >> 20)

#define DFB_BYTES_PER_LINE(fmt,width)   (((((fmt) & 0x007E0000) >> 17) * (width) + 7) >> 3)

#define DFB_PIXELFORMAT_ALIGNMENT(fmt)  (((fmt) & 0x03800000) >> 23)

#define DFB_PLANE_MULTIPLY(fmt,height)  ((((((fmt) & 0x3C000000) >> 26) + 4) * (height)) >> 2)

#define DFB_PIXELFORMAT_IS_INDEXED(fmt) (((fmt) & 0x40000000) !=  0)

#define DFB_PLANAR_PIXELFORMAT(fmt)     (((fmt) & 0x3C000000) !=  0)

#define DFB_PIXELFORMAT_INV_ALPHA(fmt)  (((fmt) & 0x80000000) !=  0)


/*
 * Description of the surface that is to be created.
 */
typedef struct {
     DFBSurfaceDescriptionFlags         flags;       /* field validation */

     DFBSurfaceCapabilities             caps;        /* capabilities */
     int                                width;       /* pixel width */
     int                                height;      /* pixel height */
     DFBSurfacePixelFormat              pixelformat; /* pixel format */

     struct {
          void                         *data;        /* data pointer of existing buffer */
          int                           pitch;       /* pitch of buffer */
     } preallocated[2];

     struct {
          const DFBColor               *entries;
          unsigned int                  size;
     } palette;                                      /* initial palette */

     unsigned long                      resource_id;   /* universal resource id, either user specified for general
                                                          purpose surfaces or id of layer or window */
} DFBSurfaceDescription;

/*
 * Description of the palette that is to be created.
 */
typedef struct {
     DFBPaletteDescriptionFlags         flags;       /* Validation of fields. */

     DFBPaletteCapabilities             caps;        /* Palette capabilities. */
     unsigned int                       size;        /* Number of entries. */
     const DFBColor                    *entries;     /* Preset palette
                                                        entries. */
} DFBPaletteDescription;


#define DFB_DISPLAY_LAYER_DESC_NAME_LENGTH   32

/*
 * Description of the display layer capabilities.
 */
typedef struct {
     DFBDisplayLayerTypeFlags           type;          /* Classification of the display layer. */
     DFBDisplayLayerCapabilities        caps;          /* Capability flags of the display layer. */

     char name[DFB_DISPLAY_LAYER_DESC_NAME_LENGTH];    /* Display layer name. */

     int                                level;         /* Default level. */
     int                                regions;       /* Number of concurrent regions supported.<br>
                                                           -1 = unlimited,
                                                            0 = unknown/one,
                                                           >0 = actual number */
     int                                sources;       /* Number of selectable sources. */
     int                                clip_regions;  /* Number of clipping regions. */
} DFBDisplayLayerDescription;

/*
 * Capabilities of a display layer source.
 */
typedef enum {
     DDLSCAPS_NONE       = 0x00000000,  /* none of these */

     DDLSCAPS_SURFACE    = 0x00000001,  /* source has an accessable surface */

     DDLSCAPS_ALL        = 0x00000001   /* all of these */
} DFBDisplayLayerSourceCaps;

#define DFB_DISPLAY_LAYER_SOURCE_DESC_NAME_LENGTH    24

/*
 * Description of a display layer source.
 */
typedef struct {
     DFBDisplayLayerSourceID            source_id;          /* ID of the source. */

     char name[DFB_DISPLAY_LAYER_SOURCE_DESC_NAME_LENGTH];  /* Name of the source. */

     DFBDisplayLayerSourceCaps          caps;               /* Capabilites of the source. */
} DFBDisplayLayerSourceDescription;


#define DFB_SCREEN_DESC_NAME_LENGTH          32

/*
 * Description of the display encoder capabilities.
 */
typedef struct {
     DFBScreenCapabilities              caps;        /* Capability flags of
                                                        the screen. */

     char name[DFB_SCREEN_DESC_NAME_LENGTH];         /* Rough description. */

     int                                mixers;      /* Number of mixers
                                                        available. */
     int                                encoders;    /* Number of display
                                                        encoders available. */
     int                                outputs;     /* Number of output
                                                        connectors available. */
} DFBScreenDescription;


#define DFB_INPUT_DEVICE_DESC_NAME_LENGTH    32
#define DFB_INPUT_DEVICE_DESC_VENDOR_LENGTH  40

/*
 * Description of the input device capabilities.
 */
typedef struct {
     DFBInputDeviceTypeFlags            type;        /* classification of
                                                        input device */
     DFBInputDeviceCapabilities         caps;        /* capabilities,
                                                        validates the
                                                        following fields */

     int                                min_keycode; /* minimum hardware
                                                        keycode or -1 if
                                                        no differentiation
                                                        between hardware
                                                        keys is made */
     int                                max_keycode; /* maximum hardware
                                                        keycode or -1 if
                                                        no differentiation
                                                        between hardware
                                                        keys is made */
     DFBInputDeviceAxisIdentifier       max_axis;    /* highest axis
                                                        identifier */
     DFBInputDeviceButtonIdentifier     max_button;  /* highest button
                                                        identifier */

     char name[DFB_INPUT_DEVICE_DESC_NAME_LENGTH];   /* Device name */

     char vendor[DFB_INPUT_DEVICE_DESC_VENDOR_LENGTH]; /* Device vendor */
} DFBInputDeviceDescription;

typedef enum {
     DIAIF_NONE                    = 0x00000000,

     DIAIF_ABS_MIN                 = 0x00000001,
     DIAIF_ABS_MAX                 = 0x00000002,

     DIAIF_ALL                     = 0x00000003
} DFBInputDeviceAxisInfoFlags;

typedef struct {
     DFBInputDeviceAxisInfoFlags   flags;
     int                           abs_min;
     int                           abs_max;
} DFBInputDeviceAxisInfo;

#define DFB_GRAPHICS_DRIVER_INFO_NAME_LENGTH    40
#define DFB_GRAPHICS_DRIVER_INFO_VENDOR_LENGTH  60

typedef struct {
     int  major;                                          /* Major version */
     int  minor;                                          /* Minor version */

     char name[DFB_GRAPHICS_DRIVER_INFO_NAME_LENGTH];     /* Driver name */
     char vendor[DFB_GRAPHICS_DRIVER_INFO_VENDOR_LENGTH]; /* Driver vendor */
} DFBGraphicsDriverInfo;

#define DFB_GRAPHICS_DEVICE_DESC_NAME_LENGTH    48
#define DFB_GRAPHICS_DEVICE_DESC_VENDOR_LENGTH  64

/*
 * Description of the graphics device capabilities.
 */
typedef struct {
     DFBAccelerationMask      acceleration_mask;          /* Accelerated functions */

     DFBSurfaceBlittingFlags  blitting_flags;             /* Supported blitting flags */
     DFBSurfaceDrawingFlags   drawing_flags;              /* Supported drawing flags */

     unsigned int             video_memory;               /* Amount of video memory in bytes */

     char name[DFB_GRAPHICS_DEVICE_DESC_NAME_LENGTH];     /* Device/Chipset name */
     char vendor[DFB_GRAPHICS_DEVICE_DESC_VENDOR_LENGTH]; /* Device vendor */

     DFBGraphicsDriverInfo    driver;
} DFBGraphicsDeviceDescription;

/*
 * Description of the window that is to be created.
 */
typedef struct {
     DFBWindowDescriptionFlags          flags;        /* field validation */

     DFBWindowCapabilities              caps;         /* capabilities */
     int                                width;        /* pixel width */
     int                                height;       /* pixel height */
     DFBSurfacePixelFormat              pixelformat;  /* pixel format */
     int                                posx;         /* distance from left layer border */
     int                                posy;         /* distance from upper layer border */
     DFBSurfaceCapabilities             surface_caps; /* pixel format */
     DFBWindowID                        parent_id;    /* window id of parent window */
     DFBWindowOptions                   options;      /* initial window options */
     DFBWindowStackingClass             stacking;     /* initial stacking class */

     unsigned long                      resource_id;  /* resource id used to create the window surface */
} DFBWindowDescription;

/*
 * Description of a data buffer that is to be created.
 */
typedef struct {
     DFBDataBufferDescriptionFlags      flags;       /* field validation */

     const char                        *file;        /* for file based data buffers */

     struct {
          const void                   *data;        /* static data pointer */
          unsigned int                  length;      /* length of buffer */
     } memory;                                       /* memory based buffers */
} DFBDataBufferDescription;

/*
 * Return value of callback function of enumerations.
 */
typedef enum {
     DFENUM_OK           = 0x00000000,  /* Proceed with enumeration */
     DFENUM_CANCEL       = 0x00000001   /* Cancel enumeration */
} DFBEnumerationResult;

/*
 * Called for each supported video mode.
 */
typedef DFBEnumerationResult (*DFBVideoModeCallback) (
     int                       width,
     int                       height,
     int                       bpp,
     void                     *callbackdata
);

/*
 * Called for each existing screen.
 * "screen_id" can be used to get an interface to the screen.
 */
typedef DFBEnumerationResult (*DFBScreenCallback) (
     DFBScreenID                        screen_id,
     DFBScreenDescription               desc,
     void                              *callbackdata
);

/*
 * Called for each existing display layer.
 * "layer_id" can be used to get an interface to the layer.
 */
typedef DFBEnumerationResult (*DFBDisplayLayerCallback) (
     DFBDisplayLayerID                  layer_id,
     DFBDisplayLayerDescription         desc,
     void                              *callbackdata
);

/*
 * Called for each existing input device.
 * "device_id" can be used to get an interface to the device.
 */
typedef DFBEnumerationResult (*DFBInputDeviceCallback) (
     DFBInputDeviceID                   device_id,
     DFBInputDeviceDescription          desc,
     void                              *callbackdata
);

/*
 * Called for each block of continous data requested, e.g. by a
 * Video Provider. Write as many data as you can but not more
 * than specified by length. Return the number of bytes written
 * or 'EOF' if no data is available anymore.
 */
typedef int (*DFBGetDataCallback) (
     void                              *buffer,
     unsigned int                       length,
     void                              *callbackdata
);

/*
 * Information about an IDirectFBVideoProvider.
 */
typedef enum {
     DVCAPS_BASIC       = 0x00000000,  /* basic ops (PlayTo, Stop)         */
     DVCAPS_SEEK        = 0x00000001,  /* supports SeekTo                  */
     DVCAPS_SCALE       = 0x00000002,  /* can scale the video              */
     DVCAPS_INTERLACED  = 0x00000004,  /* supports interlaced surfaces     */
     DVCAPS_SPEED       = 0x00000008,  /* supports changing playback speed */
     DVCAPS_BRIGHTNESS  = 0x00000010,  /* supports Brightness adjustment   */
     DVCAPS_CONTRAST    = 0x00000020,  /* supports Contrast adjustment     */
     DVCAPS_HUE         = 0x00000040,  /* supports Hue adjustment          */
     DVCAPS_SATURATION  = 0x00000080,  /* supports Saturation adjustment   */
     DVCAPS_INTERACTIVE = 0x00000100,  /* supports SendEvent               */
     DVCAPS_VOLUME      = 0x00000200,  /* supports Volume adjustment       */
     DVCAPS_EVENT       = 0x00000400,  /* supports the sending of events as video/audio data changes.*/
     DVCAPS_ATTRIBUTES  = 0x00000800,  /* supports dynamic changing of atrributes.*/
     DVCAPS_AUDIO_SEL   = 0x00001000,  /* Supportes chosing audio outputs.*/
} DFBVideoProviderCapabilities;

/*
 * Information about the status of an IDirectFBVideoProvider.
 */
typedef enum {
     DVSTATE_UNKNOWN    = 0x00000000, /* unknown status               */
     DVSTATE_PLAY       = 0x00000001, /* video provider is playing    */
     DVSTATE_STOP       = 0x00000002, /* playback was stopped         */
     DVSTATE_FINISHED   = 0x00000003, /* playback is finished         */
     DVSTATE_BUFFERING  = 0x00000004  /* video provider is buffering,
                                         playback is running          */
} DFBVideoProviderStatus;

/*
 * Flags controlling playback mode of a IDirectFBVideoProvider.
 */
typedef enum {
     DVPLAY_NOFX        = 0x00000000, /* normal playback           */
     DVPLAY_REWIND      = 0x00000001, /* reverse playback          */
     DVPLAY_LOOPING     = 0x00000002  /* automatically restart 
                                         playback when end-of-stream
                                         is reached (gapless).     */
} DFBVideoProviderPlaybackFlags;

/*
 * Flags to allow Audio Unit selection.
 */
typedef enum {
     DVAUDIOUNIT_NONE   = 0x00000000, /* No Audio Unit            */
     DVAUDIOUNIT_ONE    = 0x00000001, /* Audio Unit One           */
     DVAUDIOUNIT_TWO    = 0x00000002, /* Audio Unit Two           */
     DVAUDIOUNIT_THREE  = 0x00000004, /* Audio Unit Three         */
     DVAUDIOUNIT_FOUR   = 0x00000008, /* Audio Unit Four          */
     DVAUDIOUNIT_ALL    = 0x0000000F, /* Audio Unit One           */
} DFBVideoProviderAudioUnits;


/*
 * Flags defining which fields of a DFBColorAdjustment are valid.
 */
typedef enum {
     DCAF_NONE         = 0x00000000,  /* none of these              */
     DCAF_BRIGHTNESS   = 0x00000001,  /* brightness field is valid  */
     DCAF_CONTRAST     = 0x00000002,  /* contrast field is valid    */
     DCAF_HUE          = 0x00000004,  /* hue field is valid         */
     DCAF_SATURATION   = 0x00000008,  /* saturation field is valid  */
     DCAF_ALL          = 0x0000000F   /* all of these               */
} DFBColorAdjustmentFlags;

/*
 * Color Adjustment used to adjust video colors.
 *
 * All fields are in the range 0x0 to 0xFFFF with
 * 0x8000 as the default value (no adjustment).
 */
typedef struct {
     DFBColorAdjustmentFlags  flags;

     u16                      brightness;
     u16                      contrast;
     u16                      hue;
     u16                      saturation;
} DFBColorAdjustment;


/*
 * <i><b>IDirectFB</b></i> is the main interface. It can be
 * retrieved by a call to <i>DirectFBCreate</i>. It's the only
 * interface with a global creation facility. Other interfaces
 * are created by this interface or interfaces created by it.
 *
 * <b>Hardware capabilities</b> such as the amount of video
 * memory or a list of supported drawing/blitting functions and
 * flags can be retrieved.  It also provides enumeration of all
 * supported video modes.
 *
 * <b>Input devices</b> and <b>display layers</b> that are
 * present can be enumerated via a callback mechanism. The
 * callback is given the capabilities and the device or layer
 * ID. An interface to specific input devices or display layers
 * can be retrieved by passing the device or layer ID to the
 * corresponding method.
 *
 * <b>Surfaces</b> for general purpose use can be created via
 * <i>CreateSurface</i>. These surfaces are so called "offscreen
 * surfaces" and could be used for sprites or icons.
 *
 * The <b>primary surface</b> is an abstraction and API shortcut
 * for getting a surface for visual output. Fullscreen games for
 * example have the whole screen as their primary
 * surface. Alternatively fullscreen applications can be forced
 * to run in a window. The primary surface is also created via
 * <i>CreateSurface</i> but with the special capability
 * DSCAPS_PRIMARY.
 *
 * The <b>cooperative level</b> selects the type of the primary
 * surface.  With a call to <i>SetCooperativeLevel</i> the
 * application can choose between the surface of an implicitly
 * created window and the surface of the primary layer
 * (deactivating the window stack). The application doesn't need
 * to have any extra functionality to run in a window. If the
 * application is forced to run in a window the call to
 * <i>SetCooperativeLevel</i> fails with DFB_ACCESSDENIED.
 * Applications that want to be "window aware" shouldn't exit on
 * this error.
 *
 * The <b>video mode</b> can be changed via <i>SetVideoMode</i>
 * and is the size and depth of the primary surface, i.e. the
 * screen when in exclusive cooperative level. Without exclusive
 * access <i>SetVideoMode</i> sets the size of the implicitly
 * created window.
 *
 * <b>Event buffers</b> can be created with an option to
 * automatically attach input devices matching the specified
 * capabilities. If DICAPS_NONE is passed an event buffer with
 * nothing attached to is created. An event buffer can be
 * attached to input devices and windows.
 *
 * <b>Fonts, images and videos</b> are created by this
 * interface. There are different implementations for different
 * content types. On creation a suitable implementation is
 * automatically chosen.
 */
DEFINE_INTERFACE(   IDirectFB,

   /** Cooperative level, video mode **/

     /*
      * Puts the interface into the specified cooperative level.
      *
      * Function fails with DFB_LOCKED if another instance already
      * is in a cooperative level other than DFSCL_NORMAL.
      */
     DFBResult (*SetCooperativeLevel) (
          IDirectFB                *thiz,
          DFBCooperativeLevel       level
     );

     /*
      * Switch the current video mode (primary layer).
      *
      * If in shared cooperative level this function sets the
      * resolution of the window that is created implicitly for
      * the primary surface.
      */
     DFBResult (*SetVideoMode) (
          IDirectFB                *thiz,
          int                       width,
          int                       height,
          int                       bpp
     );


   /** Hardware capabilities **/

     /*
      * Get a description of the graphics device.
      *
      * For more detailed information use
      * IDirectFBSurface::GetAccelerationMask().
      */
     DFBResult (*GetDeviceDescription) (
          IDirectFB                    *thiz,
          DFBGraphicsDeviceDescription *ret_desc
     );

     /*
      * Enumerate supported video modes.
      *
      * Calls the given callback for all available video modes.
      * Useful to select a certain mode to be used with
      * IDirectFB::SetVideoMode().
      */
     DFBResult (*EnumVideoModes) (
          IDirectFB                *thiz,
          DFBVideoModeCallback      callback,
          void                     *callbackdata
     );


   /** Surfaces & Palettes **/

     /*
      * Create a surface matching the specified description.
      */
     DFBResult (*CreateSurface) (
          IDirectFB                     *thiz,
          const DFBSurfaceDescription   *desc,
          IDirectFBSurface             **ret_interface
     );

     /*
      * Create a palette matching the specified description.
      *
      * Passing a NULL description creates a default palette with
      * 256 entries filled with colors matching the RGB332 format.
      */
     DFBResult (*CreatePalette) (
          IDirectFB                    *thiz,
          const DFBPaletteDescription  *desc,
          IDirectFBPalette            **ret_interface
     );


   /** Screens **/

     /*
      * Enumerate all existing screen.
      *
      * Calls the given callback for each available screen.
      * The callback is passed the screen id that can be
      * used to retrieve an interface to a specific screen using
      * IDirectFB::GetScreen().
      */
     DFBResult (*EnumScreens) (
          IDirectFB                *thiz,
          DFBScreenCallback         callback,
          void                     *callbackdata
     );

     /*
      * Retrieve an interface to a specific screen.
      */
     DFBResult (*GetScreen) (
          IDirectFB                *thiz,
          DFBScreenID               screen_id,
          IDirectFBScreen         **ret_interface
     );


   /** Display Layers **/

     /*
      * Enumerate all existing display layers.
      *
      * Calls the given callback for each available display
      * layer. The callback is passed the layer id that can be
      * used to retrieve an interface to a specific layer using
      * IDirectFB::GetDisplayLayer().
      */
     DFBResult (*EnumDisplayLayers) (
          IDirectFB                *thiz,
          DFBDisplayLayerCallback   callback,
          void                     *callbackdata
     );

     /*
      * Retrieve an interface to a specific display layer.
      *
      * The default <i>layer_id</i> is DLID_PRIMARY.
      * Others can be obtained using IDirectFB::EnumDisplayLayers().
      */
     DFBResult (*GetDisplayLayer) (
          IDirectFB                *thiz,
          DFBDisplayLayerID         layer_id,
          IDirectFBDisplayLayer   **ret_interface
     );


   /** Input Devices **/

     /*
      * Enumerate all existing input devices.
      *
      * Calls the given callback for all available input devices.
      * The callback is passed the device id that can be used to
      * retrieve an interface on a specific device using
      * IDirectFB::GetInputDevice().
      */
     DFBResult (*EnumInputDevices) (
          IDirectFB                *thiz,
          DFBInputDeviceCallback    callback,
          void                     *callbackdata
     );

     /*
      * Retrieve an interface to a specific input device.
      */
     DFBResult (*GetInputDevice) (
          IDirectFB                *thiz,
          DFBInputDeviceID          device_id,
          IDirectFBInputDevice    **ret_interface
     );

     /*
      * Create a buffer for events.
      *
      * Creates an empty event buffer without event sources connected to it.
      */
     DFBResult (*CreateEventBuffer) (
          IDirectFB                   *thiz,
          IDirectFBEventBuffer       **ret_buffer
     );

     /*
      * Create a buffer for events with input devices connected.
      *
      * Creates an event buffer and attaches all input devices
      * with matching capabilities. If no input devices match,
      * e.g. by specifying DICAPS_NONE, a buffer will be returned
      * that has no event sources connected to it.
      *
      * If global is DFB_FALSE events will only be delivered if this
      * instance of IDirectFB has a focused primary (either running fullscreen
      * or running in windowed mode with the window being focused).
      *
      * If global is DFB_TRUE no event will be discarded.
      */
     DFBResult (*CreateInputEventBuffer) (
          IDirectFB                   *thiz,
          DFBInputDeviceCapabilities   caps,
          DFBBoolean                   global,
          IDirectFBEventBuffer       **ret_buffer
     );



   /** Media **/

     /*
      * Create an image provider for the specified file.
      */
     DFBResult (*CreateImageProvider) (
          IDirectFB                *thiz,
          const char               *filename,
          IDirectFBImageProvider  **ret_interface
     );

     /*
      * Create a video provider.
      */
     DFBResult (*CreateVideoProvider) (
          IDirectFB                *thiz,
          const char               *filename,
          IDirectFBVideoProvider  **ret_interface
     );

     /*
      * Load a font from the specified file given a description
      * of how to load the glyphs.
      */
     DFBResult (*CreateFont) (
          IDirectFB                     *thiz,
          const char                    *filename,
          const DFBFontDescription      *desc,
          IDirectFBFont                **ret_interface
     );

     /*
      * Create a data buffer.
      *
      * If no description is specified (NULL) a streamed data buffer
      * is created.
      */
     DFBResult (*CreateDataBuffer) (
          IDirectFB                       *thiz,
          const DFBDataBufferDescription  *desc,
          IDirectFBDataBuffer            **ret_interface
     );


   /** Clipboard **/

     /*
      * Set clipboard content.
      *
      * This is an experimental and intermediate API call that is
      * supposed to change soon.
      *
      * If timestamp is non null DirectFB returns the time stamp
      * that it associated with the new data.
      */
     DFBResult (*SetClipboardData) (
          IDirectFB                *thiz,
          const char               *mime_type,
          const void               *data,
          unsigned int              size,
          struct timeval           *ret_timestamp
     );

     /*
      * Get clipboard content.
      *
      * Memory returned in *ret_mimetype and *ret_data has to be freed.
      *
      * This is an experimental and intermediate API call that is
      * supposed to change soon.
      */
     DFBResult (*GetClipboardData) (
          IDirectFB                *thiz,
          char                    **ret_mimetype,
          void                    **ret_data,
          unsigned int             *ret_size
     );

     /*
      * Get time stamp of last SetClipboardData call.
      *
      * This is an experimental and intermediate API call that is
      * supposed to change soon.
      */
     DFBResult (*GetClipboardTimeStamp) (
          IDirectFB                *thiz,
          struct timeval           *ret_timestamp
     );


   /** Misc **/

     /*
      * Suspend DirectFB, no other calls to DirectFB are allowed
      * until Resume has been called.
      */
     DFBResult (*Suspend) (
          IDirectFB                *thiz
     );

     /*
      * Resume DirectFB, only to be called after Suspend.
      */
     DFBResult (*Resume) (
          IDirectFB                *thiz
     );

     /*
      * Wait until graphics card is idle,
      * i.e. finish all drawing/blitting functions.
      */
     DFBResult (*WaitIdle) (
          IDirectFB                *thiz
     );

     /*
      * Wait for next vertical retrace.
      */
     DFBResult (*WaitForSync) (
          IDirectFB                *thiz
     );


   /** Extensions **/

     /*
      * Load an implementation of a specific interface type.
      *
      * This methods loads an interface implementation of the specified
      * <b>type</b> of interface, e.g. "IFusionSound".
      *
      * A specific implementation can be forced with the optional
      * <b>implementation</b> argument.
      *
      * Implementations are passed <b>arg</b> during probing and construction.
      *
      * If an implementation has been successfully probed and the interface
      * has been constructed, the resulting interface pointer is stored in
      * <b>interface</b>.
      */
     DFBResult (*GetInterface) (
          IDirectFB                *thiz,
          const char               *type,
          const char               *implementation,
          void                     *arg,
          void                    **ret_interface
     );
)

/* predefined layer ids */
#define DLID_PRIMARY          0x0000

/* predefined layer source ids */
#define DLSID_SURFACE         0x0000

/* predefined screen ids */
#define DSCID_PRIMARY         0x0000

/* predefined input device ids */
#define DIDID_KEYBOARD        0x0000    /* primary keyboard       */
#define DIDID_MOUSE           0x0001    /* primary mouse          */
#define DIDID_JOYSTICK        0x0002    /* primary joystick       */
#define DIDID_REMOTE          0x0003    /* primary remote control */
#define DIDID_ANY             0x0010    /* no primary device      */


/*
 * Cooperative level handling the access permissions.
 */
typedef enum {
     DLSCL_SHARED             = 0, /* shared access */
     DLSCL_EXCLUSIVE,              /* exclusive access,
                                      fullscreen/mode switching */
     DLSCL_ADMINISTRATIVE          /* administrative access,
                                      enumerate windows, control them */
} DFBDisplayLayerCooperativeLevel;

/*
 * Background mode defining how to erase/initialize the area
 * for a windowstack repaint
 */
typedef enum {
     DLBM_DONTCARE            = 0, /* do not clear the layer before
                                      repainting the windowstack */
     DLBM_COLOR,                   /* fill with solid color
                                      (SetBackgroundColor) */
     DLBM_IMAGE,                   /* use an image (SetBackgroundImage) */
     DLBM_TILE                     /* use a tiled image (SetBackgroundImage) */
} DFBDisplayLayerBackgroundMode;

/*
 * Layer configuration flags
 */
typedef enum {
     DLCONF_NONE              = 0x00000000,

     DLCONF_WIDTH             = 0x00000001,
     DLCONF_HEIGHT            = 0x00000002,
     DLCONF_PIXELFORMAT       = 0x00000004,
     DLCONF_BUFFERMODE        = 0x00000008,
     DLCONF_OPTIONS           = 0x00000010,
     DLCONF_SOURCE            = 0x00000020,
     DLCONF_SURFACE_CAPS      = 0x00000040,

     DLCONF_ALL               = 0x0000007F
} DFBDisplayLayerConfigFlags;

/*
 * Layer configuration
 */
typedef struct {
     DFBDisplayLayerConfigFlags    flags;         /* Which fields of the configuration are set */

     int                           width;         /* Pixel width */
     int                           height;        /* Pixel height */
     DFBSurfacePixelFormat         pixelformat;   /* Pixel format */
     DFBDisplayLayerBufferMode     buffermode;    /* Buffer mode */
     DFBDisplayLayerOptions        options;       /* Enable capabilities */
     DFBDisplayLayerSourceID       source;        /* Selected layer source */

     DFBSurfaceCapabilities        surface_caps;  /* Choose surface capabilities, available:
                                                     INTERLACED, SEPARATED, PREMULTIPLIED. */
} DFBDisplayLayerConfig;

/*
 * Screen Power Mode.
 */
typedef enum {
     DSPM_ON        = 0,
     DSPM_STANDBY,
     DSPM_SUSPEND,
     DSPM_OFF
} DFBScreenPowerMode;


/*
 * Capabilities of a mixer.
 */
typedef enum {
     DSMCAPS_NONE         = 0x00000000, /* None of these. */

     DSMCAPS_FULL         = 0x00000001, /* Can mix full tree as specified in the description. */
     DSMCAPS_SUB_LEVEL    = 0x00000002, /* Can set a maximum layer level, e.g. to exclude an OSD from VCR output. */
     DSMCAPS_SUB_LAYERS   = 0x00000004, /* Can select a number of layers individually as specified in the description. */
     DSMCAPS_BACKGROUND   = 0x00000008  /* Background color is configurable. */
} DFBScreenMixerCapabilities;


#define DFB_SCREEN_MIXER_DESC_NAME_LENGTH    24

/*
 * Description of a mixer.
 */
typedef struct {
     DFBScreenMixerCapabilities  caps;

     DFBDisplayLayerIDs          layers;             /* Visible layers if the
                                                        full tree is selected. */

     int                         sub_num;            /* Number of layers that can
                                                        be selected in sub mode. */
     DFBDisplayLayerIDs          sub_layers;         /* Layers available for sub mode
                                                        with layer selection. */

     char name[DFB_SCREEN_MIXER_DESC_NAME_LENGTH];   /* Mixer name */
} DFBScreenMixerDescription;

/*
 * Flags for mixer configuration.
 */
typedef enum {
     DSMCONF_NONE         = 0x00000000, /* None of these. */

     DSMCONF_TREE         = 0x00000001, /* (Sub) tree is selected. */
     DSMCONF_LEVEL        = 0x00000002, /* Level is specified. */
     DSMCONF_LAYERS       = 0x00000004, /* Layer selection is set. */

     DSMCONF_BACKGROUND   = 0x00000010, /* Background color is set. */

     DSMCONF_ALL          = 0x00000017
} DFBScreenMixerConfigFlags;

/*
 * (Sub) tree selection.
 */
typedef enum {
     DSMT_UNKNOWN         = 0x00000000, /* Unknown mode */

     DSMT_FULL            = 0x00000001, /* Full tree. */
     DSMT_SUB_LEVEL       = 0x00000002, /* Sub tree via maximum level. */
     DSMT_SUB_LAYERS      = 0x00000003  /* Sub tree via layer selection. */
} DFBScreenMixerTree;

/*
 * Configuration of a mixer.
 */
typedef struct {
     DFBScreenMixerConfigFlags   flags;      /* Validates struct members. */

     DFBScreenMixerTree          tree;       /* Selected (sub) tree. */

     int                         level;      /* Max. level of sub level mode. */
     DFBDisplayLayerIDs          layers;     /* Layers for sub layers mode. */

     DFBColor                    background; /* Background color. */
} DFBScreenMixerConfig;


/*
 * Capabilities of an output.
 */
typedef enum {
     DSOCAPS_NONE          = 0x00000000, /* None of these. */

     DSOCAPS_CONNECTORS    = 0x00000001, /* Output connectors are available. */

     DSOCAPS_ENCODER_SEL   = 0x00000010, /* Encoder can be selected. */
     DSOCAPS_SIGNAL_SEL    = 0x00000020, /* Signal(s) can be selected. */
     DSOCAPS_CONNECTOR_SEL = 0x00000040, /* Connector(s) can be selected. */
     DSOCAPS_SLOW_BLANKING = 0x00000080, /* Slow Blanking on outputs is supported. */
     DSOCAPS_RESOLUTION    = 0x00000100, /* Output Resolution can be changed. (global screen size)*/
     DSOCAPS_ALL           = 0x000001F1
} DFBScreenOutputCapabilities;

/*
 * Type of output connector.
 */
typedef enum {
     DSOC_UNKNOWN        = 0x00000000, /* Unknown type */

     DSOC_VGA            = 0x00000001, /* VGA connector */
     DSOC_SCART          = 0x00000002, /* SCART connector */
     DSOC_YC             = 0x00000004, /* Y/C connector */
     DSOC_CVBS           = 0x00000008, /* CVBS connector */
     DSOC_SCART2         = 0x00000010, /* 2nd SCART connector */
     DSOC_COMPONENT      = 0x00000020, /* Component video connector */
     DSOC_HDMI           = 0x00000040  /* HDMI connector */
} DFBScreenOutputConnectors;

/*
 * Type of output signal.
 */
typedef enum {
     DSOS_NONE           = 0x00000000, /* No signal */

     DSOS_VGA            = 0x00000001, /* VGA signal */
     DSOS_YC             = 0x00000002, /* Y/C signal */
     DSOS_CVBS           = 0x00000004, /* CVBS signal */
     DSOS_RGB            = 0x00000008, /* R/G/B signal */
     DSOS_YCBCR          = 0x00000010, /* Y/Cb/Cr signal */
     DSOS_HDMI           = 0x00000020, /* HDMI signal */
     DSOS_656            = 0x00000040  /* 656 Digital output signal */
} DFBScreenOutputSignals;


/*
 * Type of slow blanking signalling.
 */
typedef enum {
     DSOSB_OFF           = 0x00000000, /* No signal */
     DSOSB_16x9          = 0x00000001, /* 16*9 Widescreen signalling */
     DSOSB_4x3           = 0x00000002, /* 4*3 widescreen signalling */
     DSOSB_FOLLOW        = 0x00000004, /* Follow signalling */
     DSOSB_MONITOR       = 0x00000008  /* Monitor */
} DFBScreenOutputSlowBlankingSignals;

/**
 * Resolutions.  TV Standards implies too many things:
 *               resolution / encoding / frequency.
 */
typedef enum {
    DSOR_UNKNOWN   = 0x00000000, /* Unknown Resolution */
    DSOR_640_480   = 0x00000001, /* 640x480 Resolution */
    DSOR_720_480   = 0x00000002, /* 720x480 Resolution */
    DSOR_720_576   = 0x00000004, /* 720x576 Resolution */
    DSOR_800_600   = 0x00000008, /* 800x600 Resolution */
    DSOR_1024_768  = 0x00000010, /* 1024x768 Resolution */
    DSOR_1152_864  = 0x00000020, /* 1152x864 Resolution */
    DSOR_1280_720  = 0x00000040, /* 1280x720 Resolution */
    DSOR_1280_768  = 0x00000080, /* 1280x768 Resolution */
    DSOR_1280_960  = 0x00000100, /* 1280x960 Resolution */
    DSOR_1280_1024 = 0x00000200, /* 1280x1024 Resolution */
    DSOR_1400_1050 = 0x00000400, /* 1400x1050 Resolution */
    DSOR_1600_1200 = 0x00000800, /* 1600x1200 Resolution */
    DSOR_1920_1080 = 0x00001000, /* 1920x1080 Resolution */
    DSOR_ALL       = 0x00001FFF  /* All Resolution */
} DFBScreenOutputResolution;


#define DFB_SCREEN_OUTPUT_DESC_NAME_LENGTH    24

/*
 * Description of a screen output.
 */
typedef struct {
     DFBScreenOutputCapabilities   caps;             /* Screen capabilities. */

     DFBScreenOutputConnectors     all_connectors;   /* Output connectors. */
     DFBScreenOutputSignals        all_signals;      /* Output signals. */
     DFBScreenOutputResolution     all_resolutions;  /* Output Resolutions */

     char name[DFB_SCREEN_OUTPUT_DESC_NAME_LENGTH];  /* Output name */
} DFBScreenOutputDescription;

/*
 * Flags for screen output configuration.
 */
typedef enum {
     DSOCONF_NONE         = 0x00000000, /* None of these. */

     DSOCONF_ENCODER      = 0x00000001, /* Set encoder the signal(s) comes from. */
     DSOCONF_SIGNALS      = 0x00000002, /* Select signal(s) from encoder. */
     DSOCONF_CONNECTORS   = 0x00000004, /* Select output connector(s). */
     DSOCONF_SLOW_BLANKING= 0x00000008, /* Can select slow blanking support. */
     DSOCONF_RESOLUTION   = 0x00000010, /* Can change output resolution */
     
     DSOCONF_ALL          = 0x0000001F
} DFBScreenOutputConfigFlags;

/*
 * Configuration of an output.
 */
typedef struct {
     DFBScreenOutputConfigFlags  flags;          /* Validates struct members. */

     int                         encoder;        /* Chosen encoder. */
     DFBScreenOutputSignals      out_signals;    /* Selected encoder signal(s). */
     DFBScreenOutputConnectors   out_connectors; /* Selected output connector(s). */
     DFBScreenOutputSlowBlankingSignals     slow_blanking;/* Slow Blanking signals. */
     DFBScreenOutputResolution   resolution;     /* Output Resolution */
} DFBScreenOutputConfig;


/*
 * Capabilities of a display encoder.
 */
typedef enum {
     DSECAPS_NONE         = 0x00000000, /* None of these. */

     DSECAPS_TV_STANDARDS = 0x00000001, /* TV standards can be selected. */
     DSECAPS_TEST_PICTURE = 0x00000002, /* Test picture generation supported. */
     DSECAPS_MIXER_SEL    = 0x00000004, /* Mixer can be selected. */
     DSECAPS_OUT_SIGNALS  = 0x00000008, /* Different output signals are supported. */
     DSECAPS_SCANMODE     = 0x00000010, /* Can switch between interlaced and progressive output. */
     DSECAPS_FREQUENCY    = 0x00000020, /* Can switch between different frequencies. */

     DSECAPS_BRIGHTNESS   = 0x00000100, /* Adjustment of brightness is supported. */
     DSECAPS_CONTRAST     = 0x00000200, /* Adjustment of contrast is supported. */
     DSECAPS_HUE          = 0x00000400, /* Adjustment of hue is supported. */
     DSECAPS_SATURATION   = 0x00000800, /* Adjustment of saturation is supported. */

     DSECAPS_CONNECTORS   = 0x00001000, /* Select output connector(s). */
     DSECAPS_SLOW_BLANKING = 0x00002000, /* Slow Blanking on outputs is supported. */
     DSECAPS_RESOLUTION   = 0x00004000, /* Different encoder resolutions supported */

     DSECAPS_ALL          = 0x00007f3f
} DFBScreenEncoderCapabilities;

/*
 * Type of display encoder.
 */
typedef enum {
     DSET_UNKNOWN         = 0x00000000, /* Unknown type */

     DSET_CRTC            = 0x00000001, /* Encoder is a CRTC. */
     DSET_TV              = 0x00000002, /* TV output encoder. */
     DSET_DIGITAL         = 0x00000004  /* Support signals other than SD TV standards. */
} DFBScreenEncoderType;

/*
 * TV standards.
 */
typedef enum {
     DSETV_UNKNOWN        = 0x00000000, /* Unknown standard */

     DSETV_PAL            = 0x00000001, /* PAL */
     DSETV_NTSC           = 0x00000002, /* NTSC */
     DSETV_SECAM          = 0x00000004, /* SECAM */
     DSETV_PAL_60         = 0x00000008, /* PAL-60 */
     DSETV_PAL_BG         = 0x00000010, /* PAL BG support (specific) */
     DSETV_PAL_I          = 0x00000020, /* PAL I support (specific) */
     DSETV_PAL_M          = 0x00000040, /* PAL M support (specific) */
     DSETV_PAL_N          = 0x00000080, /* PAL N support (specific) */
     DSETV_PAL_NC         = 0x00000100, /* PAL NC support (specific) */
     DSETV_NTSC_M_JPN     = 0x00000200, /* NTSC_JPN support */
     DSETV_DIGITAL        = 0x00000400, /* TV standards from the digital domain.  specify resolution, scantype, frequency.*/
     DSETV_ALL            = 0x000007FF  /* All TV Standards*/
} DFBScreenEncoderTVStandards;

/*
 * Scan modes.
 */
typedef enum {
     DSESM_UNKNOWN        = 0x00000000, /* Unknown mode */

     DSESM_INTERLACED     = 0x00000001, /* Interlaced scan mode */
     DSESM_PROGRESSIVE    = 0x00000002  /* Progressive scan mode */
} DFBScreenEncoderScanMode;

/*
 * Frequency of output signal.
 */
typedef enum {
     DSEF_UNKNOWN        = 0x00000000, /* Unknown Frequency */

     DSEF_25HZ           = 0x00000001, /* 25 Hz Output. */
     DSEF_29_97HZ        = 0x00000002, /* 29.97 Hz Output. */
     DSEF_50HZ           = 0x00000004, /* 50 Hz Output. */
     DSEF_59_94HZ        = 0x00000008, /* 59.94 Hz Output. */
     DSEF_60HZ           = 0x00000010, /* 60 Hz Output. */
     DSEF_75HZ           = 0x00000020, /* 75 Hz Output. */
} DFBScreenEncoderFrequency;

#define DFB_SCREEN_ENCODER_DESC_NAME_LENGTH    24

/*
 * Description of a display encoder.
 */
typedef struct {
     DFBScreenEncoderCapabilities  caps;               /* Encoder capabilities. */
     DFBScreenEncoderType          type;               /* Type of encoder. */

     DFBScreenEncoderTVStandards   tv_standards;       /* Supported TV standards. */
     DFBScreenOutputSignals        out_signals;        /* Supported output signals. */
     DFBScreenOutputConnectors     all_connectors;     /* Supported output connectors */
     DFBScreenOutputResolution     all_resolutions;    /* Supported Resolutions*/

     char name[DFB_SCREEN_ENCODER_DESC_NAME_LENGTH];   /* Encoder name */
} DFBScreenEncoderDescription;

/*
 * Flags for display encoder configuration.
 */
typedef enum {
     DSECONF_NONE         = 0x00000000, /* None of these. */

     DSECONF_TV_STANDARD  = 0x00000001, /* Set TV standard. */
     DSECONF_TEST_PICTURE = 0x00000002, /* Set test picture mode. */
     DSECONF_MIXER        = 0x00000004, /* Select mixer. */
     DSECONF_OUT_SIGNALS  = 0x00000008, /* Select generated output signal(s). */
     DSECONF_SCANMODE     = 0x00000010, /* Select interlaced or progressive output. */
     DSECONF_TEST_COLOR   = 0x00000020, /* Set color for DSETP_SINGLE. */
     DSECONF_ADJUSTMENT   = 0x00000040, /* Set color adjustment. */
     DSECONF_FREQUENCY    = 0x00000080, /* Set Output Frequency*/

     DSECONF_CONNECTORS   = 0x00000100, /* Select output connector(s). */
     DSECONF_SLOW_BLANKING = 0x00000200, /* Can select slow blanking support. */
     DSECONF_RESOLUTION    = 0x00000400, /* Can change resolution of the encoder.*/
     
     DSECONF_ALL          = 0x000007FF
} DFBScreenEncoderConfigFlags;

/*
 * Test picture mode.
 */
typedef enum {
     DSETP_OFF      = 0x00000000,  /* Disable test picture. */

     DSETP_MULTI    = 0x00000001,  /* Show color bars. */
     DSETP_SINGLE   = 0x00000002,  /* Whole screen as defined in configuration. */

     DSETP_WHITE    = 0x00000010,  /* Whole screen (ff, ff, ff). */
     DSETP_YELLOW   = 0x00000020,  /* Whole screen (ff, ff, 00). */
     DSETP_CYAN     = 0x00000030,  /* Whole screen (00, ff, ff). */
     DSETP_GREEN    = 0x00000040,  /* Whole screen (00, ff, 00). */
     DSETP_MAGENTA  = 0x00000050,  /* Whole screen (ff, 00, ff). */
     DSETP_RED      = 0x00000060,  /* Whole screen (ff, 00, 00). */
     DSETP_BLUE     = 0x00000070,  /* Whole screen (00, 00, ff). */
     DSETP_BLACK    = 0x00000080   /* Whole screen (00, 00, 00). */
} DFBScreenEncoderTestPicture;

/*
 * Configuration of a display encoder.
 */
typedef struct {
     DFBScreenEncoderConfigFlags   flags;         /* Validates struct members. */

     DFBScreenEncoderTVStandards   tv_standard;   /* TV standard. */
     DFBScreenEncoderTestPicture   test_picture;  /* Test picture mode. */
     int                           mixer;         /* Selected mixer. */
     DFBScreenOutputSignals        out_signals;   /* Generated output signals. */
     DFBScreenOutputConnectors     out_connectors; /* Selected output connector(s). */
     DFBScreenOutputSlowBlankingSignals     slow_blanking;/* Slow Blanking signals. */

     DFBScreenEncoderScanMode      scanmode;      /* Interlaced or progressive output. */

     DFBColor                      test_color;    /* Color for DSETP_SINGLE. */

     DFBColorAdjustment            adjustment;    /* Color adjustment. */

     DFBScreenEncoderFrequency     frequency;     /* Selected Output Frequency*/
     DFBScreenOutputResolution     resolution;    /* Selected Output resolution*/
} DFBScreenEncoderConfig;


/*******************
 * IDirectFBScreen *
 *******************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBScreen,

   /** Retrieving information **/

     /*
      * Get the unique screen ID.
      */
     DFBResult (*GetID) (
          IDirectFBScreen                    *thiz,
          DFBScreenID                        *ret_screen_id
     );

     /*
      * Get a description of this screen, i.e. the capabilities.
      */
     DFBResult (*GetDescription) (
          IDirectFBScreen                    *thiz,
          DFBScreenDescription               *ret_desc
     );
     
     /*
      * Get the screen's width and height in pixels.
      */
     DFBResult (*GetSize) (
          IDirectFBScreen                    *thiz,
          int                                *ret_width,
          int                                *ret_height
     );


   /** Display Layers **/

     /*
      * Enumerate all existing display layers for this screen.
      *
      * Calls the given callback for each available display
      * layer. The callback is passed the layer id that can be
      * used to retrieve an interface to a specific layer using
      * IDirectFB::GetDisplayLayer().
      */
     DFBResult (*EnumDisplayLayers) (
          IDirectFBScreen                    *thiz,
          DFBDisplayLayerCallback             callback,
          void                               *callbackdata
     );


   /** Power management **/

     /*
      * Set screen power mode.
      */
     DFBResult (*SetPowerMode) (
          IDirectFBScreen                    *thiz,
          DFBScreenPowerMode                  mode
     );


   /** Synchronization **/

     /*
      * Wait for next vertical retrace.
      */
     DFBResult (*WaitForSync) (
          IDirectFBScreen                    *thiz
     );


   /** Mixers **/

     /*
      * Get a description of available mixers.
      *
      * All descriptions are written to the array pointed to by
      * <b>ret_descriptions</b>. The number of mixers is returned by
      * IDirectFBScreen::GetDescription().
      */
     DFBResult (*GetMixerDescriptions) (
          IDirectFBScreen                    *thiz,
          DFBScreenMixerDescription          *ret_descriptions
     );

     /*
      * Get current mixer configuration.
      */
     DFBResult (*GetMixerConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 mixer,
          DFBScreenMixerConfig               *ret_config
     );

     /*
      * Test mixer configuration.
      *
      * If configuration fails and 'ret_failed' is not NULL it will
      * indicate which fields of the configuration caused the error.
      */
     DFBResult (*TestMixerConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 mixer,
          const DFBScreenMixerConfig         *config,
          DFBScreenMixerConfigFlags          *ret_failed
     );

     /*
      * Set mixer configuration.
      */
     DFBResult (*SetMixerConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 mixer,
          const DFBScreenMixerConfig         *config
     );


   /** Encoders **/

     /*
      * Get a description of available display encoders.
      *
      * All descriptions are written to the array pointed to by
      * <b>ret_descriptions</b>. The number of encoders is returned by
      * IDirectFBScreen::GetDescription().
      */
     DFBResult (*GetEncoderDescriptions) (
          IDirectFBScreen                    *thiz,
          DFBScreenEncoderDescription        *ret_descriptions
     );

     /*
      * Get current encoder configuration.
      */
     DFBResult (*GetEncoderConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 encoder,
          DFBScreenEncoderConfig             *ret_config
     );

     /*
      * Test encoder configuration.
      *
      * If configuration fails and 'ret_failed' is not NULL it will
      * indicate which fields of the configuration caused the
      * error.
      */
     DFBResult (*TestEncoderConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 encoder,
          const DFBScreenEncoderConfig       *config,
          DFBScreenEncoderConfigFlags        *ret_failed
     );

     /*
      * Set encoder configuration.
      */
     DFBResult (*SetEncoderConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 encoder,
          const DFBScreenEncoderConfig       *config
     );


   /** Outputs **/

     /*
      * Get a description of available outputs.
      *
      * All descriptions are written to the array pointed to by
      * <b>ret_descriptions</b>. The number of outputs is returned by
      * IDirectFBScreen::GetDescription().
      */
     DFBResult (*GetOutputDescriptions) (
          IDirectFBScreen                    *thiz,
          DFBScreenOutputDescription         *ret_descriptions
     );

     /*
      * Get current output configuration.
      */
     DFBResult (*GetOutputConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 output,
          DFBScreenOutputConfig              *ret_config
     );

     /*
      * Test output configuration.
      *
      * If configuration fails and 'ret_failed' is not NULL it will
      * indicate which fields of the configuration caused the error.
      */
     DFBResult (*TestOutputConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 output,
          const DFBScreenOutputConfig        *config,
          DFBScreenOutputConfigFlags         *ret_failed
     );

     /*
      * Set output configuration.
      */
     DFBResult (*SetOutputConfiguration) (
          IDirectFBScreen                    *thiz,
          int                                 output,
          const DFBScreenOutputConfig        *config
     );
)


/*************************
 * IDirectFBDisplayLayer *
 *************************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBDisplayLayer,

   /** Information **/

     /*
      * Get the unique layer ID.
      */
     DFBResult (*GetID) (
          IDirectFBDisplayLayer              *thiz,
          DFBDisplayLayerID                  *ret_layer_id
     );

     /*
      * Get a description of this display layer, i.e. the capabilities.
      */
     DFBResult (*GetDescription) (
          IDirectFBDisplayLayer              *thiz,
          DFBDisplayLayerDescription         *ret_desc
     );

     /*
      * Get a description of available sources.
      *
      * All descriptions are written to the array pointed to by
      * <b>ret_descriptions</b>. The number of sources is returned by
      * IDirectFBDisplayLayer::GetDescription().
      */
     DFBResult (*GetSourceDescriptions) (
          IDirectFBDisplayLayer              *thiz,
          DFBDisplayLayerSourceDescription   *ret_descriptions
     );

     /*
      * For an interlaced display, this returns the currently inactive
      * field: 0 for the top field, and 1 for the bottom field.
      *
      * The inactive field is the one you should draw to next to avoid
      * tearing, the active field is the one currently being displayed.
      *
      * For a progressive output, this should always return 0.  We should
      * also have some other call to indicate whether the display layer
      * is interlaced or progressive, but this is a start.
      */
     DFBResult (*GetCurrentOutputField) (
          IDirectFBDisplayLayer              *thiz,
          int                                *ret_field
     );


   /** Interfaces **/

     /*
      * Get an interface to layer's surface.
      *
      * Only available in exclusive mode.
      */
     DFBResult (*GetSurface) (
          IDirectFBDisplayLayer              *thiz,
          IDirectFBSurface                  **ret_interface
     );

     /*
      * Get an interface to the screen to which the layer belongs.
      */
     DFBResult (*GetScreen) (
          IDirectFBDisplayLayer              *thiz,
          IDirectFBScreen                   **ret_interface
     );


   /** Configuration **/

     /*
      * Set cooperative level to get control over the layer
      * or the windows within this layer.
      */
     DFBResult (*SetCooperativeLevel) (
          IDirectFBDisplayLayer              *thiz,
          DFBDisplayLayerCooperativeLevel     level
     );

     /*
      * Get current layer configuration.
      */
     DFBResult (*GetConfiguration) (
          IDirectFBDisplayLayer              *thiz,
          DFBDisplayLayerConfig              *ret_config
     );

     /*
      * Test layer configuration.
      *
      * If configuration fails and 'failed' is not NULL it will
      * indicate which fields of the configuration caused the
      * error.
      */
     DFBResult (*TestConfiguration) (
          IDirectFBDisplayLayer              *thiz,
          const DFBDisplayLayerConfig        *config,
          DFBDisplayLayerConfigFlags         *ret_failed
     );

     /*
      * Set layer configuration.
      *
      * Only available in exclusive or administrative mode.
      */
     DFBResult (*SetConfiguration) (
          IDirectFBDisplayLayer              *thiz,
          const DFBDisplayLayerConfig        *config
     );


   /** Layout **/

     /*
      * Set location on screen as normalized values.
      *
      * So the whole screen is 0.0, 0.0, -1.0, 1.0.
      */
     DFBResult (*SetScreenLocation) (
          IDirectFBDisplayLayer              *thiz,
          float                               x,
          float                               y,
          float                               width,
          float                               height
     );

     /*
      * Set location on screen in pixels.
      */
     DFBResult (*SetScreenPosition) (
          IDirectFBDisplayLayer              *thiz,
          int                                 x,
          int                                 y
     );

     /*
      * Set location on screen in pixels.
      */
     DFBResult (*SetScreenRectangle) (
          IDirectFBDisplayLayer              *thiz,
          int                                 x,
          int                                 y,
          int                                 width,
          int                                 height
     );


   /** Misc Settings **/

     /*
      * Set global alpha factor for blending with layer(s) below.
      */
     DFBResult (*SetOpacity) (
          IDirectFBDisplayLayer              *thiz,
          u8                                  opacity
     );

     /*
      * Set the source rectangle.
      *
      * Only this part of the layer will be displayed.
      */
     DFBResult (*SetSourceRectangle) (
          IDirectFBDisplayLayer              *thiz,
          int                                 x,
          int                                 y,
          int                                 width,
          int                                 height
     );

     /*
      * For an interlaced display, this sets the field parity.
      *
      * field: 0 for top field first, and 1 for bottom field first.
      */
     DFBResult (*SetFieldParity) (
          IDirectFBDisplayLayer              *thiz,
          int                                 field
     );

     /*
      * Set the clipping region(s).
      *
      * If supported, this method sets the clipping <b>regions</b> that are used to
      * to enable or disable visibility of parts of the layer. The <b>num_regions</b>
      * must not exceed the limit as stated in the display layer description.
      *
      * If <b>positive</b> is DFB_TRUE the layer will be shown only in these regions,
      * otherwise it's shown as usual except in these regions.
      *
      * Also see IDirectFBDisplayLayer::GetDescription().
      */
     DFBResult (*SetClipRegions) (
          IDirectFBDisplayLayer              *thiz,
          const DFBRegion                    *regions,
          int                                 num_regions,
          DFBBoolean                          positive
     );


   /** Color keys **/

     /*
      * Set the source color key.
      *
      * If a pixel of the layer matches this color the underlying
      * pixel is visible at this point.
      */
     DFBResult (*SetSrcColorKey) (
          IDirectFBDisplayLayer              *thiz,
          u8                                  r,
          u8                                  g,
          u8                                  b
     );

     /*
      * Set the destination color key.
      *
      * The layer is only visible at points where the underlying
      * pixel matches this color.
      */
     DFBResult (*SetDstColorKey) (
          IDirectFBDisplayLayer              *thiz,
          u8                                  r,
          u8                                  g,
          u8                                  b
     );


   /** Z Order **/

     /*
      * Get the current display layer level.
      *
      * The level describes the z axis position of a layer. The
      * primary layer is always on level zero unless a special
      * driver adds support for level adjustment on the primary
      * layer.  Layers above have a positive level, e.g. video
      * overlays.  Layers below have a negative level, e.g. video
      * underlays or background layers.
      */
     DFBResult (*GetLevel) (
          IDirectFBDisplayLayer              *thiz,
          int                                *ret_level
     );

     /*
      * Set the display layer level.
      *
      * Moves the layer to the specified level. The order of all
      * other layers won't be changed. Note that only a few
      * layers support level adjustment which is reflected by
      * their capabilities.
      */
     DFBResult (*SetLevel) (
          IDirectFBDisplayLayer              *thiz,
          int                                 level
     );


   /** Background handling **/

     /*
      * Set the erase behaviour for windowstack repaints.
      *
      * Only available in exclusive or administrative mode.
      */
     DFBResult (*SetBackgroundMode) (
          IDirectFBDisplayLayer              *thiz,
          DFBDisplayLayerBackgroundMode       mode
     );

     /*
      * Set the background image for the imaged background mode.
      *
      * Only available in exclusive or administrative mode.
      */
     DFBResult (*SetBackgroundImage) (
          IDirectFBDisplayLayer              *thiz,
          IDirectFBSurface                   *surface
     );

     /*
      * Set the color for a solid colored background.
      *
      * Only available in exclusive or administrative mode.
      */
     DFBResult (*SetBackgroundColor) (
          IDirectFBDisplayLayer              *thiz,
          u8                                  r,
          u8                                  g,
          u8                                  b,
          u8                                  a
     );

   /** Color adjustment **/

     /*
      * Get the layers color adjustment.
      */
     DFBResult (*GetColorAdjustment) (
          IDirectFBDisplayLayer              *thiz,
          DFBColorAdjustment                 *ret_adj
     );

     /*
      * Set the layers color adjustment.
      *
      * Only available in exclusive or administrative mode.
      *
      * This function only has an effect if the underlying
      * hardware supports this operation. Check the layers
      * capabilities to find out if this is the case.
      */
     DFBResult (*SetColorAdjustment) (
          IDirectFBDisplayLayer              *thiz,
          const DFBColorAdjustment           *adj
     );


   /** Windows **/

     /*
      * Create a window within this layer given a
      * description of the window that is to be created.
      */
     DFBResult (*CreateWindow) (
          IDirectFBDisplayLayer              *thiz,
          const DFBWindowDescription         *desc,
          IDirectFBWindow                   **ret_interface
     );

     /*
      * Retrieve an interface to an existing window.
      *
      * The window is identified by its window id.
      */
     DFBResult (*GetWindow) (
          IDirectFBDisplayLayer              *thiz,
          DFBWindowID                         window_id,
          IDirectFBWindow                   **ret_interface
     );


   /** Cursor handling **/

     /*
      * Enable/disable the mouse cursor for this layer.
      *
      * Windows on a layer will only receive motion events if
      * the cursor is enabled. This function is only available
      * in exclusive/administrative mode.
      */
     DFBResult (*EnableCursor) (
          IDirectFBDisplayLayer              *thiz,
          int                                 enable
     );

     /*
      * Returns the x/y coordinates of the layer's mouse cursor.
      */
     DFBResult (*GetCursorPosition) (
          IDirectFBDisplayLayer              *thiz,
          int                                *ret_x,
          int                                *ret_y
     );

     /*
      * Move cursor to specified position.
      *
      * Handles movement like a real one, i.e. generates events.
      */
     DFBResult (*WarpCursor) (
          IDirectFBDisplayLayer              *thiz,
          int                                 x,
          int                                 y
     );

     /*
      * Set cursor acceleration.
      *
      * Sets the acceleration of cursor movements. The amount
      * beyond the 'threshold' will be multiplied with the
      * acceleration factor. The acceleration factor is
      * 'numerator/denominator'.
      */
     DFBResult (*SetCursorAcceleration) (
          IDirectFBDisplayLayer              *thiz,
          int                                 numerator,
          int                                 denominator,
          int                                 threshold
     );

     /*
      * Set the cursor shape and the hotspot.
      */
     DFBResult (*SetCursorShape) (
          IDirectFBDisplayLayer              *thiz,
          IDirectFBSurface                   *shape,
          int                                 hot_x,
          int                                 hot_y
     );

     /*
      * Set the cursor opacity.
      *
      * This function is especially useful if you want
      * to hide the cursor but still want windows on this
      * display layer to receive motion events. In this
      * case, simply set the cursor opacity to zero.
      */
     DFBResult (*SetCursorOpacity) (
          IDirectFBDisplayLayer              *thiz,
          u8                                  opacity
     );


   /** Synchronization **/

     /*
      * Wait for next vertical retrace.
      */
     DFBResult (*WaitForSync) (
          IDirectFBDisplayLayer              *thiz
     );


   /** Contexts **/

     /*
      * Switch the layer context.
      *
      * Switches to the shared context unless <b>exclusive</b> is DFB_TRUE
      * and the cooperative level of this interface is DLSCL_EXCLUSIVE.
      */
     DFBResult (*SwitchContext) (
          IDirectFBDisplayLayer              *thiz,
          DFBBoolean                          exclusive
     );


   /** Rotation **/

     /*
      * Set the rotation of data within the layer.
      *
      * Only available in exclusive or administrative mode.
      *
      * Any <b>rotation</b> other than 0 or 180 is not supported yet.
      *
      * No layer hardware feature usage, only rotated blitting yet.
      */
     DFBResult (*SetRotation) (
          IDirectFBDisplayLayer              *thiz,
          int                                 rotation
     );
)


/*
 * Flipping flags controlling the behaviour of IDirectFBSurface::Flip().
 */
typedef enum {
     DSFLIP_NONE         = 0x00000000,  /* None of these. */

     DSFLIP_WAIT         = 0x00000001,  /* Flip() returns upon vertical sync. Flipping is still done
                                           immediately unless DSFLIP_ONSYNC is specified, too.  */
     DSFLIP_BLIT         = 0x00000002,  /* Copy from back buffer to front buffer rather than
                                           just swapping these buffers. This behaviour is enforced
                                           if the region passed to Flip() is not NULL or if the
                                           surface being flipped is a sub surface. */
     DSFLIP_ONSYNC       = 0x00000004,  /* Do the actual flipping upon the next vertical sync.
                                           The Flip() method will still return immediately unless
                                           DSFLIP_WAIT is specified, too. */

     DSFLIP_PIPELINE     = 0x00000008,

     DSFLIP_ONCE         = 0x00000010,

     DSFLIP_WAITFORSYNC  = DSFLIP_WAIT | DSFLIP_ONSYNC
} DFBSurfaceFlipFlags;

/*
 * Flags controlling the text layout.
 */
typedef enum {
     DSTF_LEFT           = 0x00000000,  /* left aligned */
     DSTF_CENTER         = 0x00000001,  /* horizontally centered */
     DSTF_RIGHT          = 0x00000002,  /* right aligned */

     DSTF_TOP            = 0x00000004,  /* y specifies the top
                                           instead of the baseline */
     DSTF_BOTTOM         = 0x00000008,  /* y specifies the bottom
                                           instead of the baseline */

     DSTF_TOPLEFT        = DSTF_TOP | DSTF_LEFT,
     DSTF_TOPCENTER      = DSTF_TOP | DSTF_CENTER,
     DSTF_TOPRIGHT       = DSTF_TOP | DSTF_RIGHT,

     DSTF_BOTTOMLEFT     = DSTF_BOTTOM | DSTF_LEFT,
     DSTF_BOTTOMCENTER   = DSTF_BOTTOM | DSTF_CENTER,
     DSTF_BOTTOMRIGHT    = DSTF_BOTTOM | DSTF_RIGHT
} DFBSurfaceTextFlags;

/*
 * Flags defining the type of data access.
 * These are important for surface swapping management.
 */
typedef enum {
     DSLF_READ           = 0x00000001,  /* request read access while
                                           surface is locked */
     DSLF_WRITE          = 0x00000002   /* request write access */
} DFBSurfaceLockFlags;

/*
 * Available Porter/Duff rules.
 */
typedef enum {
                               /* pixel = (source * fs + destination * fd),
                                  sa = source alpha,
                                  da = destination alpha */
     DSPD_NONE           =  0, /* fs: sa      fd: 1.0-sa (defaults) */
     DSPD_CLEAR          =  1, /* fs: 0.0     fd: 0.0    */
     DSPD_SRC            =  2, /* fs: 1.0     fd: 0.0    */
     DSPD_SRC_OVER       =  3, /* fs: 1.0     fd: 1.0-sa */
     DSPD_DST_OVER       =  4, /* fs: 1.0-da  fd: 1.0    */
     DSPD_SRC_IN         =  5, /* fs: da      fd: 0.0    */
     DSPD_DST_IN         =  6, /* fs: 0.0     fd: sa     */
     DSPD_SRC_OUT        =  7, /* fs: 1.0-da  fd: 0.0    */
     DSPD_DST_OUT        =  8, /* fs: 0.0     fd: 1.0-sa */
     DSPD_SRC_ATOP       =  9, /* fs: da      fd: 1.0-sa */
     DSPD_DST_ATOP       = 10, /* fs: 1.0-da  fd: sa     */
     DSPD_ADD            = 11, /* fs: 1.0     fd: 1.0    */
     DSPD_XOR            = 12, /* fs: 1.0-da  fd: 1.0-sa */
     DSPD_DST            = 13, /* fs: 0.0     fd: 1.0    */
} DFBSurfacePorterDuffRule;

/*
 * Blend functions to use for source and destination blending
 */
typedef enum {
     /*
      * pixel color = sc * cf[sf] + dc * cf[df]
      * pixel alpha = sa * af[sf] + da * af[df]
      * sc = source color
      * sa = source alpha
      * dc = destination color
      * da = destination alpha
      * sf = source blend function
      * df = destination blend function
      * cf[x] = color factor for blend function x
      * af[x] = alpha factor for blend function x
      */
     DSBF_UNKNOWN            = 0,  /*                             */
     DSBF_ZERO               = 1,  /* cf:    0           af:    0 */
     DSBF_ONE                = 2,  /* cf:    1           af:    1 */
     DSBF_SRCCOLOR           = 3,  /* cf:   sc           af:   sa */
     DSBF_INVSRCCOLOR        = 4,  /* cf: 1-sc           af: 1-sa */
     DSBF_SRCALPHA           = 5,  /* cf:   sa           af:   sa */
     DSBF_INVSRCALPHA        = 6,  /* cf: 1-sa           af: 1-sa */
     DSBF_DESTALPHA          = 7,  /* cf:   da           af:   da */
     DSBF_INVDESTALPHA       = 8,  /* cf: 1-da           af: 1-da */
     DSBF_DESTCOLOR          = 9,  /* cf:   dc           af:   da */
     DSBF_INVDESTCOLOR       = 10, /* cf: 1-dc           af: 1-da */
     DSBF_SRCALPHASAT        = 11, /* cf: min(sa, 1-da)  af:    1 */
} DFBSurfaceBlendFunction;

/*
 * Transformed vertex of a textured triangle.
 */
typedef struct {
     float x;   /* Destination X coordinate (in pixels) */
     float y;   /* Destination Y coordinate (in pixels) */
     float z;   /* Z coordinate */
     float w;   /* W coordinate */

     float s;   /* Texture S coordinate */
     float t;   /* Texture T coordinate */
} DFBVertex;

/*
 * Way of building triangles from the list of vertices.
 */
typedef enum {
     DTTF_LIST,  /* 0/1/2  3/4/5  6/7/8 ... */
     DTTF_STRIP, /* 0/1/2  1/2/3  2/3/4 ... */
     DTTF_FAN    /* 0/1/2  0/2/3  0/3/4 ... */
} DFBTriangleFormation;

/*
 * Flags controlling surface masks set via IDirectFBSurface::SetSourceMask().
 */
typedef enum {
     DSMF_NONE      = 0x00000000,  /* None of these. */

     DSMF_STENCIL   = 0x00000001,  /* Take <b>x</b> and <b>y</b> as fixed start coordinates in the mask. */

     DSMF_ALL       = 0x00000001,  /* All of these. */
} DFBSurfaceMaskFlags;

/********************
 * IDirectFBSurface *
 ********************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBSurface,

   /** Retrieving information **/

     /*
      * Return the capabilities of this surface.
      */
     DFBResult (*GetCapabilities) (
          IDirectFBSurface         *thiz,
          DFBSurfaceCapabilities   *ret_caps
     );

     /*
      * Get the surface's position in pixels.
      */
     DFBResult (*GetPosition) (
          IDirectFBSurface         *thiz,
          int                      *ret_x,
          int                      *ret_y
     );

     /*
      * Get the surface's width and height in pixels.
      */
     DFBResult (*GetSize) (
          IDirectFBSurface         *thiz,
          int                      *ret_width,
          int                      *ret_height
     );

     /*
      * Created sub surfaces might be clipped by their parents,
      * this function returns the resulting rectangle relative
      * to this surface.
      *
      * For non sub surfaces this function returns
      * { 0, 0, width, height }.
      */
     DFBResult (*GetVisibleRectangle) (
          IDirectFBSurface         *thiz,
          DFBRectangle             *ret_rect
     );

     /*
      * Get the current pixel format.
      */
     DFBResult (*GetPixelFormat) (
          IDirectFBSurface         *thiz,
          DFBSurfacePixelFormat    *ret_format
     );

     /*
      * Get a mask of drawing functions that are hardware
      * accelerated with the current settings.
      *
      * If a source surface is specified the mask will also
      * contain accelerated blitting functions.  Note that there
      * is no guarantee that these will actually be accelerated
      * since the surface storage (video/system) is examined only
      * when something actually gets drawn or blitted.
      */
     DFBResult (*GetAccelerationMask) (
          IDirectFBSurface         *thiz,
          IDirectFBSurface         *source,
          DFBAccelerationMask      *ret_mask
     );


   /** Palette & Alpha Ramp **/

     /*
      * Get access to the surface's palette.
      *
      * Returns an interface that can be used to gain
      * read and/or write access to the surface's palette.
      */
     DFBResult (*GetPalette) (
          IDirectFBSurface         *thiz,
          IDirectFBPalette        **ret_interface
     );

     /*
      * Change the surface's palette.
      */
     DFBResult (*SetPalette) (
          IDirectFBSurface         *thiz,
          IDirectFBPalette         *palette
     );

     /*
      * Set the alpha ramp for formats with one or two alpha bits.
      *
      * Either all four values or the first and the
      * last one are used, depending on the format.
      * Default values are: 0x00, 0x55, 0xaa, 0xff.
      */
     DFBResult (*SetAlphaRamp) (
          IDirectFBSurface         *thiz,
          u8                        a0,
          u8                        a1,
          u8                        a2,
          u8                        a3
     );


   /** Buffer operations **/

     /*
      * Lock the surface for the access type specified.
      *
      * Returns a data pointer and the line pitch of it.
      */
     DFBResult (*Lock) (
          IDirectFBSurface         *thiz,
          DFBSurfaceLockFlags       flags,
          void                    **ret_ptr,
          int                      *ret_pitch
     );

     /*
      * Returns the framebuffer offset of a locked surface.
      *
      * The surface must exist in video memory.
      */
     DFBResult (*GetFramebufferOffset) (
          IDirectFBSurface *thiz,
          int              *offset
     );

     /*
      * Unlock the surface after direct access.
      */
     DFBResult (*Unlock) (
          IDirectFBSurface         *thiz
     );

     /*
      * Flip/Update surface buffers.
      *
      * If no region is specified the whole surface is flipped,
      * otherwise blitting is used to update the region.
      * If surface capabilities don't include DSCAPS_FLIPPING,
      * this method has the effect to make visible changes
      * made to the surface contents.
      */
     DFBResult (*Flip) (
          IDirectFBSurface         *thiz,
          const DFBRegion          *region,
          DFBSurfaceFlipFlags       flags
     );

     /*
      * Set the active field.
      *
      * Interlaced surfaces consist of two fields. Software driven
      * deinterlacing uses this method to manually switch the field
      * that is displayed, e.g. scaled up vertically by two.
      */
     DFBResult (*SetField) (
          IDirectFBSurface         *thiz,
          int                       field
     );

     /*
      * Clear the surface and its depth buffer if existent.
      *
      * Fills the whole (sub) surface with the specified color while ignoring
      * drawing flags and color of the current state, but limited to the current clip.
      *
      * As with all drawing and blitting functions the backbuffer is written to.
      * If you are initializing a double buffered surface you may want to clear both
      * buffers by doing a Clear-Flip-Clear sequence.
      */
     DFBResult (*Clear) (
          IDirectFBSurface         *thiz,
          u8                        r,
          u8                        g,
          u8                        b,
          u8                        a
     );


   /** Drawing/blitting control **/

     /*
      * Set the clipping region used to limit the area for
      * drawing, blitting and text functions.
      *
      * If no region is specified (NULL passed) the clip is set
      * to the surface extents (initial clip).
      */
     DFBResult (*SetClip) (
          IDirectFBSurface         *thiz,
          const DFBRegion          *clip
     );

     /*
      * Get the clipping region used to limit the area for
      * drawing, blitting and text functions.
      */
     DFBResult (*GetClip) (
          IDirectFBSurface         *thiz,
          DFBRegion                *ret_clip
     );

     /*
      * Set the color used for drawing/text functions or
      * alpha/color modulation (blitting functions).
      *
      * If you are not using the alpha value it should be set to
      * 0xff to ensure visibility when the code is ported to or
      * used for surfaces with an alpha channel.
      *
      * This method should be avoided for surfaces with an indexed
      * pixelformat, e.g. DSPF_LUT8, otherwise an expensive search
      * in the color/alpha lookup table occurs.
      */
     DFBResult (*SetColor) (
          IDirectFBSurface         *thiz,
          u8                        r,
          u8                        g,
          u8                        b,
          u8                        a
     );

     /*
      * Set the color like with SetColor() but using
      * an index to the color/alpha lookup table.
      *
      * This method is only supported by surfaces with an
      * indexed pixelformat, e.g. DSPF_LUT8. For these formats
      * this method should be used instead of SetColor().
      */
     DFBResult (*SetColorIndex) (
          IDirectFBSurface         *thiz,
          unsigned int              index
     );

     /*
      * Set the blend function that applies to the source.
      */
     DFBResult (*SetSrcBlendFunction) (
          IDirectFBSurface         *thiz,
          DFBSurfaceBlendFunction   function
     );

     /*
      * Set the blend function that applies to the destination.
      */
     DFBResult (*SetDstBlendFunction) (
          IDirectFBSurface         *thiz,
          DFBSurfaceBlendFunction   function
     );

     /*
      * Set the source and destination blend function by
      * specifying a Porter/Duff rule.
      */
     DFBResult (*SetPorterDuff) (
          IDirectFBSurface         *thiz,
          DFBSurfacePorterDuffRule  rule
     );

     /*
      * Set the source color key, i.e. the color that is excluded
      * when blitting FROM this surface TO another that has
      * source color keying enabled.
      */
     DFBResult (*SetSrcColorKey) (
          IDirectFBSurface         *thiz,
          u8                        r,
          u8                        g,
          u8                        b
     );

     /*
      * Set the source color key like with SetSrcColorKey() but using
      * an index to the color/alpha lookup table.
      *
      * This method is only supported by surfaces with an
      * indexed pixelformat, e.g. DSPF_LUT8. For these formats
      * this method should be used instead of SetSrcColorKey().
      */
     DFBResult (*SetSrcColorKeyIndex) (
          IDirectFBSurface         *thiz,
          unsigned int              index
     );

     /*
      * Set the destination color key, i.e. the only color that
      * gets overwritten by drawing and blitting to this surface
      * when destination color keying is enabled.
      */
     DFBResult (*SetDstColorKey) (
          IDirectFBSurface         *thiz,
          u8                        r,
          u8                        g,
          u8                        b
     );

     /*
      * Set the destination color key like with SetDstColorKey() but using
      * an index to the color/alpha lookup table.
      *
      * This method is only supported by surfaces with an
      * indexed pixelformat, e.g. DSPF_LUT8. For these formats
      * this method should be used instead of SetDstColorKey().
      */
     DFBResult (*SetDstColorKeyIndex) (
          IDirectFBSurface         *thiz,
          unsigned int              index
     );



   /** Blitting functions **/

     /*
      * Set the flags for all subsequent blitting commands.
      */
     DFBResult (*SetBlittingFlags) (
          IDirectFBSurface         *thiz,
          DFBSurfaceBlittingFlags   flags
     );

     /*
      * Blit an area from the source to this surface.
      *
      * Pass a NULL rectangle to use the whole source surface.
      * Source may be the same surface.
      */
     DFBResult (*Blit) (
          IDirectFBSurface         *thiz,
          IDirectFBSurface         *source,
          const DFBRectangle       *source_rect,
          int                       x,
          int                       y
     );

     /*
      * Blit an area from the source tiled to this surface.
      *
      * Pass a NULL rectangle to use the whole source surface.
      * Source may be the same surface.
      */
     DFBResult (*TileBlit) (
          IDirectFBSurface         *thiz,
          IDirectFBSurface         *source,
          const DFBRectangle       *source_rect,
          int                       x,
          int                       y
     );

     /*
      * Blit a bunch of areas at once.
      *
      * Source may be the same surface.
      */
     DFBResult (*BatchBlit) (
          IDirectFBSurface         *thiz,
          IDirectFBSurface         *source,
          const DFBRectangle       *source_rects,
          const DFBPoint           *dest_points,
          int                       num
     );

     /*
      * Blit an area scaled from the source to the destination
      * rectangle.
      *
      * Pass a NULL rectangle to use the whole source surface.
      */
     DFBResult (*StretchBlit) (
          IDirectFBSurface         *thiz,
          IDirectFBSurface         *source,
          const DFBRectangle       *source_rect,
          const DFBRectangle       *destination_rect
     );

     /*
      * Preliminary texture mapping support.
      *
      * Maps a <b>texture</b> onto triangles being built
      * from <b>vertices</b> according to the chosen <b>formation</b>.
      *
      * Optional <b>indices</b> can be used to avoid rearrangement of vertex lists,
      * otherwise the vertex list is processed consecutively, i.e. as if <b>indices</b>
      * are ascending numbers starting at zero.
      *
      * Either the number of <b>indices</b> (if non NULL) or the number of <b>vertices</b> is
      * specified by <b>num</b> and has to be three at least. If the chosen <b>formation</b>
      * is DTTF_LIST it also has to be a multiple of three.
      */
     DFBResult (*TextureTriangles) (
          IDirectFBSurface         *thiz,
          IDirectFBSurface         *texture,
          const DFBVertex          *vertices,
          const int                *indices,
          int                       num,
          DFBTriangleFormation      formation
     );


   /** Drawing functions **/

     /*
      * Set the flags for all subsequent drawing commands.
      */
     DFBResult (*SetDrawingFlags) (
          IDirectFBSurface         *thiz,
          DFBSurfaceDrawingFlags    flags
     );

     /*
      * Fill the specified rectangle with the given color
      * following the specified flags.
      */
     DFBResult (*FillRectangle) (
          IDirectFBSurface         *thiz,
          int                       x,
          int                       y,
          int                       w,
          int                       h
     );

     /*
      * Draw an outline of the specified rectangle with the given
      * color following the specified flags.
      */
     DFBResult (*DrawRectangle) (
          IDirectFBSurface         *thiz,
          int                       x,
          int                       y,
          int                       w,
          int                       h
     );

     /*
      * Draw a line from one point to the other with the given color
      * following the drawing flags.
      */
     DFBResult (*DrawLine) (
          IDirectFBSurface         *thiz,
          int                       x1,
          int                       y1,
          int                       x2,
          int                       y2
     );

     /*
      * Draw 'num_lines' lines with the given color following the
      * drawing flags. Each line specified by a DFBRegion.
      */
     DFBResult (*DrawLines) (
          IDirectFBSurface         *thiz,
          const DFBRegion          *lines,
          unsigned int              num_lines
     );

     /*
      * Fill a non-textured triangle.
      */
     DFBResult (*FillTriangle) (
          IDirectFBSurface         *thiz,
          int                       x1,
          int                       y1,
          int                       x2,
          int                       y2,
          int                       x3,
          int                       y3
     );

     /*
      * Fill a bunch of rectangles with a single call.
      *
      * Fill <b>num</b> rectangles with the current color following the
      * drawing flags. Each rectangle specified by a DFBRectangle.
      */
     DFBResult (*FillRectangles) (
          IDirectFBSurface         *thiz,
          const DFBRectangle       *rects,
          unsigned int              num
     );

     /*
      * Fill spans specified by x and width.
      *
      * Fill <b>num</b> spans with the given color following the
      * drawing flags. Each span is specified by a DFBSpan.
      */
     DFBResult (*FillSpans) (
          IDirectFBSurface         *thiz,
          int                       y,
          const DFBSpan            *spans,
          unsigned int              num
     );
     
     /*
      * Fill a bunch of triangles with a single call.
      *
      * Fill <b>num</b> triangles with the current color following the
      * drawing flags. Each triangle specified by a DFBTriangle.
      */
     DFBResult (*FillTriangles) (
          IDirectFBSurface         *thiz,
          const DFBTriangle        *tris,
          unsigned int              num
     );


   /** Text functions **/

     /*
      * Set the font used by DrawString() and DrawGlyph().
      * You can pass NULL here to unset the font.
      */
     DFBResult (*SetFont) (
          IDirectFBSurface         *thiz,
          IDirectFBFont            *font
     );

     /*
      * Get the font associated with a surface.
      *
      * This function increases the font's reference count.
      */
     DFBResult (*GetFont) (
          IDirectFBSurface         *thiz,
          IDirectFBFont           **ret_font
     );

     /*
      * Draw a string at the specified position with the
      * given color following the specified flags.
      *
      * Bytes specifies the number of bytes to take from the
      * string or -1 for the complete NULL-terminated string. You
      * need to set a font using the SetFont() method before
      * calling this function.
      */
     DFBResult (*DrawString) (
          IDirectFBSurface         *thiz,
          const char               *text,
          int                       bytes,
          int                       x,
          int                       y,
          DFBSurfaceTextFlags       flags
     );

     /*
      * Draw a single glyph specified by its character code at the
      * specified position with the given color following the
      * specified flags.
      *
      * If font was loaded with the DFFA_NOCHARMAP flag, index specifies
      * the raw glyph index in the font.
      *
      * You need to set a font using the SetFont() method before
      * calling this function.
      */
     DFBResult (*DrawGlyph) (
          IDirectFBSurface         *thiz,
          unsigned int              character,
          int                       x,
          int                       y,
          DFBSurfaceTextFlags       flags
     );

     /*
      * Change the encoding used for text rendering.
      */
     DFBResult (*SetEncoding) (
          IDirectFBSurface         *thiz,
          DFBTextEncodingID         encoding
     );


   /** Lightweight helpers **/

     /*
      * Get an interface to a sub area of this surface.
      *
      * No image data is duplicated, this is a clipped graphics
      * within the original surface. This is very helpful for
      * lightweight components in a GUI toolkit.  The new
      * surface's state (color, drawingflags, etc.) is
      * independent from this one. So it's a handy graphics
      * context.  If no rectangle is specified, the whole surface
      * (or a part if this surface is a subsurface itself) is
      * represented by the new one.
      */
     DFBResult (*GetSubSurface) (
          IDirectFBSurface         *thiz,
          const DFBRectangle       *rect,
          IDirectFBSurface        **ret_interface
     );


   /** OpenGL **/

     /*
      * Get an OpenGL context for this surface.
      */
     DFBResult (*GetGL) (
          IDirectFBSurface         *thiz,
          IDirectFBGL             **ret_interface
     );


   /** Debug **/

     /*
      * Dump the contents of the surface to one or two files.
      *
      * Creates a PPM file containing the RGB data and a PGM file with
      * the alpha data if present.
      *
      * The complete filenames will be
      * <b>directory</b>/<b>prefix</b>_<i>####</i>.ppm for RGB and
      * <b>directory</b>/<b>prefix</b>_<i>####</i>.pgm for the alpha channel
      * if present. Example: "/directory/prefix_0000.ppm". No existing files
      * will be overwritten.
      */
     DFBResult (*Dump) (
          IDirectFBSurface         *thiz,
          const char               *directory,
          const char               *prefix
     );

     /*
      * Disable hardware acceleration.
      *
      * If any function in <b>mask</b> is set, acceleration will not be used for it.<br/>
      * Default is DFXL_NONE.
      */
     DFBResult (*DisableAcceleration) (
          IDirectFBSurface         *thiz,
          DFBAccelerationMask       mask
     );


   /** Resources **/

     /*
      * Release possible reference to source surface.
      *
      * For performance reasons the last surface that has been used for Blit() and others stays
      * attached to the state of the destination surface to save the overhead of reprogramming
      * the same values each time.
      *
      * That leads to the last source being still around regardless of it being released
      * via its own interface. The worst case is generation of thumbnails using StretchBlit()
      * from a huge surface to a small one. The small thumbnail surface keeps the big one alive,
      * because no other blitting will be done to the small surface afterwards.
      *
      * To solve this, here's the method applications should use in such a case.
      */
     DFBResult (*ReleaseSource) (
          IDirectFBSurface         *thiz
     );


   /** Blitting control **/

     /*
      * Set index translation table.
      *
      * Set the translation table used for fast indexed to indexed
      * pixel format conversion.
      *
      * A negative index means that the pixel will not be written.
      *
      * Undefined indices will be treated like negative ones.
      */
     DFBResult (*SetIndexTranslation) (
          IDirectFBSurface         *thiz,
          const int                *indices,
          int                       num_indices
     );


   /** Rendering **/

     /*
      * Set options affecting the output of drawing and blitting operations.
      *
      * None of these is mandatory and therefore unsupported flags will not
      * cause a software fallback.
      */
     DFBResult (*SetRenderOptions) (
          IDirectFBSurface         *thiz,
          DFBSurfaceRenderOptions   options
     );


   /** Drawing/blitting control **/

     /*
      * Set the transformation matrix.
      *
      * Enable usage of this matrix by setting DSRO_MATRIX via IDirectFBSurface::SetRenderOptions().
      *
      * The matrix consists of 3x3 fixed point 16.16 values.
      * The order in the array is from left to right and from top to bottom.
      *
      * All drawing and blitting will be transformed:
      *
      * <pre>
      *        X' = (X * v0 + Y * v1 + v2) / (X * v6 + Y * v7 + v8)
      *        Y' = (X * v3 + Y * v4 + v5) / (X * v6 + Y * v7 + v8)
      * </pre>
      */
     DFBResult (*SetMatrix) (
          IDirectFBSurface         *thiz,
          const s32                *matrix
     );

     /*
      * Set the surface to be used as a mask for blitting.
      *
      * The <b>mask</b> applies when DSBLIT_SRC_MASK_ALPHA or DSBLIT_SRC_MASK_COLOR is used.
      *
      * Depending on the <b>flags</b> reading either starts at a fixed location in the mask with
      * absolute <b>x</b> and <b>y</b>, or at the same location as in the source, with <b>x</b>
      * and <b>y</b> used as an offset.
      *
      * <i>Example with DSMF_STENCIL:</i>
      * <pre>
      *        Blit from <b>19,  6</b> in the source
      *              and <b> 0,  0</b> in the mask (<b>x =  0, y =  0</b>)
      *               or <b>-5, 17</b>             (<b>x = -5, y = 17</b>)
      *               or <b>23, 42</b>             (<b>x = 23, y = 42</b>)
      * </pre>
      *
      * <i>Example without:</i>
      * <pre>
      *        Blit from <b>19,  6</b> in the source
      *              and <b>19,  6</b> in the mask (<b>x =  0, y =  0</b>)
      *               or <b>14, 23</b>             (<b>x = -5, y = 17</b>)
      *               or <b>42, 48</b>             (<b>x = 23, y = 42</b>)
      * </pre>
      *
      * See also IDirectFBSurface::SetBlittingFlags().
      */
     DFBResult (*SetSourceMask) (
          IDirectFBSurface         *thiz,
          IDirectFBSurface         *mask,
          int                       x,
          int                       y,
          DFBSurfaceMaskFlags       flags
     );


   /** Lightweight helpers **/

     /*
      * Make this a sub surface or adjust the rectangle of this sub surface.
      */
     DFBResult (*MakeSubSurface) (
          IDirectFBSurface         *thiz,
          IDirectFBSurface         *from,
          const DFBRectangle       *rect
     );


   /** Direct Write/Read **/

     /*
      * Write to the surface without the need for (Un)Lock.
      * 
      * <b>rect</b> defines the area inside the surface.
      * <br><b>ptr</b> and <b>pitch</b> specify the source.
      * <br>The format of the surface and the source data must be the same.
      */
     DFBResult (*Write) (
          IDirectFBSurface         *thiz,
          const DFBRectangle       *rect,
          const void               *ptr,
          int                       pitch
     );

     /*
      * Read from the surface without the need for (Un)Lock.
      * 
      * <b>rect</b> defines the area inside the surface to be read.
      * <br><b>ptr</b> and <b>pitch</b> specify the destination.
      * <br>The destination data will have the same format as the surface.
      */
     DFBResult (*Read) (
          IDirectFBSurface         *thiz,
          const DFBRectangle       *rect,
          void                     *ptr,
          int                       pitch
     );
)


/********************
 * IDirectFBPalette *
 ********************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBPalette,

   /** Retrieving information **/

     /*
      * Return the capabilities of this palette.
      */
     DFBResult (*GetCapabilities) (
          IDirectFBPalette         *thiz,
          DFBPaletteCapabilities   *ret_caps
     );

     /*
      * Get the number of entries in the palette.
      */
     DFBResult (*GetSize) (
          IDirectFBPalette         *thiz,
          unsigned int             *ret_size
     );


   /** Palette entries **/

     /*
      * Write entries to the palette.
      *
      * Writes the specified number of entries to the palette at the
      * specified offset.
      */
     DFBResult (*SetEntries) (
          IDirectFBPalette         *thiz,
          const DFBColor           *entries,
          unsigned int              num_entries,
          unsigned int              offset
     );

     /*
      * Read entries from the palette.
      *
      * Reads the specified number of entries from the palette at the
      * specified offset.
      */
     DFBResult (*GetEntries) (
          IDirectFBPalette         *thiz,
          DFBColor                 *ret_entries,
          unsigned int              num_entries,
          unsigned int              offset
     );

     /*
      * Find the best matching entry.
      *
      * Searches the map for an entry which best matches the specified color.
      */
     DFBResult (*FindBestMatch) (
          IDirectFBPalette         *thiz,
          u8                        r,
          u8                        g,
          u8                        b,
          u8                        a,
          unsigned int             *ret_index
     );


   /** Clone **/

     /*
      * Create a copy of the palette.
      */
     DFBResult (*CreateCopy) (
          IDirectFBPalette         *thiz,
          IDirectFBPalette        **ret_interface
     );


   /** YUV Palette **/

     /*
      * Write entries to the palette.
      *
      * Writes the specified number of entries to the palette at the
      * specified offset.
      */
     DFBResult (*SetEntriesYUV) (
          IDirectFBPalette         *thiz,
          const DFBColorYUV        *entries,
          unsigned int              num_entries,
          unsigned int              offset
     );

     /*
      * Read entries from the palette.
      *
      * Reads the specified number of entries from the palette at the
      * specified offset.
      */
     DFBResult (*GetEntriesYUV) (
          IDirectFBPalette         *thiz,
          DFBColorYUV              *ret_entries,
          unsigned int              num_entries,
          unsigned int              offset
     );

     /*
      * Find the best matching entry.
      *
      * Searches the map for an entry which best matches the specified color.
      */
     DFBResult (*FindBestMatchYUV) (
          IDirectFBPalette         *thiz,
          u8                        y,
          u8                        u,
          u8                        v,
          u8                        a,
          unsigned int             *ret_index
     );
)


/*
 * Specifies whether a key is currently down.
 */
typedef enum {
     DIKS_UP             = 0x00000000,  /* key is not pressed */
     DIKS_DOWN           = 0x00000001   /* key is pressed */
} DFBInputDeviceKeyState;

/*
 * Specifies whether a button is currently pressed.
 */
typedef enum {
     DIBS_UP             = 0x00000000,  /* button is not pressed */
     DIBS_DOWN           = 0x00000001   /* button is pressed */
} DFBInputDeviceButtonState;

/*
 * Flags specifying which buttons are currently down.
 */
typedef enum {
     DIBM_LEFT           = 0x00000001,  /* left mouse button */
     DIBM_RIGHT          = 0x00000002,  /* right mouse button */
     DIBM_MIDDLE         = 0x00000004   /* middle mouse button */
} DFBInputDeviceButtonMask;

/*
 * Flags specifying which modifiers are currently pressed.
 */
typedef enum {
     DIMM_SHIFT     = (1 << DIMKI_SHIFT),    /* Shift key is pressed */
     DIMM_CONTROL   = (1 << DIMKI_CONTROL),  /* Control key is pressed */
     DIMM_ALT       = (1 << DIMKI_ALT),      /* Alt key is pressed */
     DIMM_ALTGR     = (1 << DIMKI_ALTGR),    /* AltGr key is pressed */
     DIMM_META      = (1 << DIMKI_META),     /* Meta key is pressed */
     DIMM_SUPER     = (1 << DIMKI_SUPER),    /* Super key is pressed */
     DIMM_HYPER     = (1 << DIMKI_HYPER)     /* Hyper key is pressed */
} DFBInputDeviceModifierMask;


/************************
 * IDirectFBInputDevice *
 ************************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBInputDevice,

   /** Retrieving information **/

     /*
      * Get the unique device ID.
      */
     DFBResult (*GetID) (
          IDirectFBInputDevice          *thiz,
          DFBInputDeviceID              *ret_device_id
     );

     /*
      * Get a description of this device, i.e. the capabilities.
      */
     DFBResult (*GetDescription) (
          IDirectFBInputDevice          *thiz,
          DFBInputDeviceDescription     *ret_desc
     );


   /** Key mapping **/

     /*
      * Fetch one entry from the keymap for a specific hardware keycode.
      */
     DFBResult (*GetKeymapEntry) (
          IDirectFBInputDevice          *thiz,
          int                            keycode,
          DFBInputDeviceKeymapEntry     *ret_entry
     );


   /** Event buffers **/

     /*
      * Create an event buffer for this device and attach it.
      */
     DFBResult (*CreateEventBuffer) (
          IDirectFBInputDevice          *thiz,
          IDirectFBEventBuffer         **ret_buffer
     );

     /*
      * Attach an existing event buffer to this device.
      *
      * NOTE: Attaching multiple times generates multiple events.
      *
      */
     DFBResult (*AttachEventBuffer) (
          IDirectFBInputDevice          *thiz,
          IDirectFBEventBuffer          *buffer
     );
     
     /*
      * Detach an event buffer from this device.
      */
     DFBResult (*DetachEventBuffer) (
          IDirectFBInputDevice          *thiz,
          IDirectFBEventBuffer          *buffer
     );


   /** General state queries **/

     /*
      * Get the current state of one key.
      */
     DFBResult (*GetKeyState) (
          IDirectFBInputDevice          *thiz,
          DFBInputDeviceKeyIdentifier    key_id,
          DFBInputDeviceKeyState        *ret_state
     );

     /*
      * Get the current modifier mask.
      */
     DFBResult (*GetModifiers) (
          IDirectFBInputDevice          *thiz,
          DFBInputDeviceModifierMask    *ret_modifiers
     );

     /*
      * Get the current state of the key locks.
      */
     DFBResult (*GetLockState) (
          IDirectFBInputDevice          *thiz,
          DFBInputDeviceLockState       *ret_locks
     );

     /*
      * Get a mask of currently pressed buttons.
      *
      * The first button corrensponds to the right most bit.
      */
     DFBResult (*GetButtons) (
          IDirectFBInputDevice          *thiz,
          DFBInputDeviceButtonMask      *ret_buttons
     );

     /*
      * Get the state of a button.
      */
     DFBResult (*GetButtonState) (
          IDirectFBInputDevice          *thiz,
          DFBInputDeviceButtonIdentifier button,
          DFBInputDeviceButtonState     *ret_state
     );

     /*
      * Get the current value of the specified axis.
      */
     DFBResult (*GetAxis) (
          IDirectFBInputDevice          *thiz,
          DFBInputDeviceAxisIdentifier   axis,
          int                           *ret_pos
     );


   /** Specialized queries **/

     /*
      * Utility function combining two calls to GetAxis().
      *
      * You may leave one of the x/y arguments NULL.
      */
     DFBResult (*GetXY) (
          IDirectFBInputDevice          *thiz,
          int                           *ret_x,
          int                           *ret_y
     );
)


/*
 * Event class.
 */
typedef enum {
     DFEC_NONE           = 0x00,   /* none of these */
     DFEC_INPUT          = 0x01,   /* raw input event */
     DFEC_WINDOW         = 0x02,   /* windowing event */
     DFEC_USER           = 0x03,   /* custom event for the user of this library */
     DFEC_UNIVERSAL      = 0x04,   /* universal event for custom usage with variable size */
     DFEC_VIDEOPROVIDER  = 0x05    /* video provider event */
} DFBEventClass;

/*
 * The type of an input event.
 */
typedef enum {
     DIET_UNKNOWN        = 0,      /* unknown event */
     DIET_KEYPRESS,                /* a key is been pressed */
     DIET_KEYRELEASE,              /* a key is been released */
     DIET_BUTTONPRESS,             /* a (mouse) button is been pressed */
     DIET_BUTTONRELEASE,           /* a (mouse) button is been released */
     DIET_AXISMOTION               /* mouse/joystick movement */
} DFBInputEventType;

/*
 * Flags defining which additional (optional) event fields are valid.
 */
typedef enum {
     DIEF_NONE           = 0x0000,   /* no additional fields */
     DIEF_TIMESTAMP      = 0x0001,   /* timestamp is valid */
     DIEF_AXISABS        = 0x0002,   /* axis and axisabs are valid */
     DIEF_AXISREL        = 0x0004,   /* axis and axisrel are valid */

     DIEF_KEYCODE        = 0x0008,   /* used internally by the input core,
                                        always set at application level */
     DIEF_KEYID          = 0x0010,   /* used internally by the input core,
                                        always set at application level */
     DIEF_KEYSYMBOL      = 0x0020,   /* used internally by the input core,
                                        always set at application level */
     DIEF_MODIFIERS      = 0x0040,   /* used internally by the input core,
                                        always set at application level */
     DIEF_LOCKS          = 0x0080,   /* used internally by the input core,
                                        always set at application level */
     DIEF_BUTTONS        = 0x0100,   /* used internally by the input core,
                                        always set at application level */
     DIEF_GLOBAL         = 0x0200,   /* Only for event buffers creates by
                                        IDirectFB::CreateInputEventBuffer()
                                        with global events enabled.
                                        Indicates that the event would have been
                                        filtered if the buffer hadn't been
                                        global. */
     DIEF_REPEAT         = 0x0400,   /* repeated event, e.g. key or button press */
     DIEF_FOLLOW         = 0x0800,   /* another event will follow immediately, e.g. x/y axis */

     DIEF_MIN            = 0x1000,   /* minimum value is set, e.g. for absolute axis motion */
     DIEF_MAX            = 0x2000,   /* maximum value is set, e.g. for absolute axis motion */
} DFBInputEventFlags;

/*
 * An input event, item of an input buffer.
 */
typedef struct {
     DFBEventClass                   clazz;      /* clazz of event */

     DFBInputEventType               type;       /* type of event */
     DFBInputDeviceID                device_id;  /* source of event */
     DFBInputEventFlags              flags;      /* which optional fields
                                                    are valid? */

     /* additionally (check flags) */
     struct timeval                  timestamp;  /* time of event creation */

/* DIET_KEYPRESS, DIET_KEYRELEASE */
     int                             key_code;   /* hardware keycode, no
                                                    mapping, -1 if device
                                                    doesn't differentiate
                                                    between several keys */
     DFBInputDeviceKeyIdentifier     key_id;     /* basic mapping,
                                                    modifier independent */
     DFBInputDeviceKeySymbol         key_symbol; /* advanced mapping,
                                                    unicode compatible,
                                                    modifier dependent */
     /* additionally (check flags) */
     DFBInputDeviceModifierMask      modifiers;  /* pressed modifiers
                                                    (optional) */
     DFBInputDeviceLockState         locks;      /* active locks
                                                    (optional) */

/* DIET_BUTTONPRESS, DIET_BUTTONRELEASE */
     DFBInputDeviceButtonIdentifier  button;     /* in case of a button
                                                    event */
     DFBInputDeviceButtonMask        buttons;    /* mask of currently
                                                    pressed buttons */

/* DIET_AXISMOTION */
     DFBInputDeviceAxisIdentifier    axis;       /* in case of an axis
                                                    event */
     /* one of these two (check flags) */
     int                             axisabs;    /* absolute mouse/
                                                    joystick coordinate */
     int                             axisrel;    /* relative mouse/
                                                    joystick movement */

     /* general information */
     int                             min;        /* minimum possible value */
     int                             max;        /* maximum possible value */
} DFBInputEvent;

/*
 * Window Event Types - can also be used as flags for event filters.
 */
typedef enum {
     DWET_NONE           = 0x00000000,

     DWET_POSITION       = 0x00000001,  /* window has been moved by
                                           window manager or the
                                           application itself */
     DWET_SIZE           = 0x00000002,  /* window has been resized
                                           by window manager or the
                                           application itself */
     DWET_CLOSE          = 0x00000004,  /* closing this window has been
                                           requested only */
     DWET_DESTROYED      = 0x00000008,  /* window got destroyed by global
                                           deinitialization function or
                                           the application itself */
     DWET_GOTFOCUS       = 0x00000010,  /* window got focus */
     DWET_LOSTFOCUS      = 0x00000020,  /* window lost focus */

     DWET_KEYDOWN        = 0x00000100,  /* a key has gone down while
                                           window has focus */
     DWET_KEYUP          = 0x00000200,  /* a key has gone up while
                                           window has focus */

     DWET_BUTTONDOWN     = 0x00010000,  /* mouse button went down in
                                           the window */
     DWET_BUTTONUP       = 0x00020000,  /* mouse button went up in
                                           the window */
     DWET_MOTION         = 0x00040000,  /* mouse cursor changed its
                                           position in window */
     DWET_ENTER          = 0x00080000,  /* mouse cursor entered
                                           the window */
     DWET_LEAVE          = 0x00100000,  /* mouse cursor left the window */

     DWET_WHEEL          = 0x00200000,  /* mouse wheel was moved while
                                           window has focus */

     DWET_POSITION_SIZE  = DWET_POSITION | DWET_SIZE,/* initially sent to
                                                        window when it's
                                                        created */

     DWET_ALL            = 0x003F033F   /* all event types */
} DFBWindowEventType;

/*
 * Flags for a window event.
 */
typedef enum {
     DWEF_NONE           = 0x00000000,  /* none of these */

     DWEF_RETURNED       = 0x00000001,  /* This is a returned event, e.g. unconsumed key. */
     DWEF_REPEAT         = 0x00000010,  /* repeat event, e.g. repeating key */

     DWEF_ALL            = 0x00000011   /* all of these */
} DFBWindowEventFlags;

/*
 * Video Provider Event Types - can also be used as flags for event filters.
 */
typedef enum {
     DVPET_NONE           = 0x00000000,
     DVPET_STARTED        = 0x00000001,  /* The video provider has started the playback     */
     DVPET_STOPPED        = 0x00000002,  /* The video provider has stopped the playback     */
     DVPET_SPEEDCHANGE    = 0x00000004,  /* A speed change has occured                      */
     DVPET_STREAMCHANGE   = 0x00000008,  /* A stream description change has occured         */
     DVPET_FATALERROR     = 0x00000010,  /* A fatal error has occured: restart must be done */
     DVPET_FINISHED       = 0x00000020,  /* The video provider has finished the playback    */
     DVPET_SURFACECHANGE  = 0x00000040,  /* A surface description change has occured        */
     DVPET_FRAMEDECODED   = 0x00000080,  /* A frame has been decoded by the decoder         */
     DVPET_FRAMEDISPLAYED = 0x00000100,  /* A frame has been rendered to the output         */
     DVPET_DATAEXHAUSTED  = 0x00000200,  /* There is no more data available for consumption */
     DVPET_VIDEOACTION    = 0x00000400,  /* An action is required on the video provider     */
     DVPET_DATALOW        = 0x00000800,  /* The stream buffer is running low in data (threshold defined by implementation). */
     DVPET_DATAHIGH       = 0x00001000,  /* The stream buffer is high. */
     DVPET_BUFFERTIMELOW  = 0x00002000,  /* The stream buffer has less than requested playout time buffered. */
     DVPET_BUFFERTIMEHIGH = 0x00004000,  /* The stream buffer has more than requested playout time buffered. */
     DVPET_ALL            = 0x00007FFF   /* All event types */
} DFBVideoProviderEventType;

/*
 * Event from the windowing system.
 */
typedef struct {
     DFBEventClass                   clazz;      /* clazz of event */

     DFBWindowEventType              type;       /* type of event */

     /* used by DWET_KEYDOWN, DWET_KEYUP */
     DFBWindowEventFlags             flags;      /* event flags */

     DFBWindowID                     window_id;  /* source of event */

     /* used by DWET_MOVE, DWET_MOTION, DWET_BUTTONDOWN, DWET_BUTTONUP,
        DWET_ENTER, DWET_LEAVE */
     int                             x;          /* x position of window
                                                    or coordinate within
                                                    window */
     int                             y;          /* y position of window
                                                    or coordinate within
                                                    window */

     /* used by DWET_MOTION, DWET_BUTTONDOWN, DWET_BUTTONUP,
        DWET_ENTER, DWET_LEAVE */
     int                             cx;         /* x cursor position */
     int                             cy;         /* y cursor position */

     /* used by DWET_WHEEL */
     int                             step;       /* wheel step */

     /* used by DWET_RESIZE */
     int                             w;          /* width of window */
     int                             h;          /* height of window */

     /* used by DWET_KEYDOWN, DWET_KEYUP */
     int                             key_code;   /* hardware keycode, no
                                                    mapping, -1 if device
                                                    doesn't differentiate
                                                    between several keys */
     DFBInputDeviceKeyIdentifier     key_id;     /* basic mapping,
                                                    modifier independent */
     DFBInputDeviceKeySymbol         key_symbol; /* advanced mapping,
                                                    unicode compatible,
                                                    modifier dependent */
     DFBInputDeviceModifierMask      modifiers;  /* pressed modifiers */
     DFBInputDeviceLockState         locks;      /* active locks */

     /* used by DWET_BUTTONDOWN, DWET_BUTTONUP */
     DFBInputDeviceButtonIdentifier  button;     /* button being
                                                    pressed or released */
     /* used by DWET_MOTION, DWET_BUTTONDOWN, DWET_BUTTONUP */
     DFBInputDeviceButtonMask        buttons;    /* mask of currently
                                                    pressed buttons */

     struct timeval                  timestamp;  /* always set */
} DFBWindowEvent;

/*
 * Video Provider Event Types - can also be used as flags for event filters.
 */
typedef enum {
     DVPEDST_UNKNOWN      = 0x00000000, /* Event is valid for unknown Data   */
     DVPEDST_AUDIO        = 0x00000001, /* Event is valid for Audio Data     */
     DVPEDST_VIDEO        = 0x00000002, /* Event is valid for Video Data     */
     DVPEDST_DATA         = 0x00000004, /* Event is valid for Data types     */
     DVPEDST_ALL          = 0x00000007, /* Event is valid for all Data types */

} DFBVideoProviderEventDataSubType;

/*
 * Event from the video provider
 */
typedef struct {
     DFBEventClass                    clazz;      /* clazz of event */

     DFBVideoProviderEventType        type;       /* type of event */
     DFBVideoProviderEventDataSubType data_type;  /* data type that this event is applicable for. */

     int                              data[4];    /* custom data - large enough for 4 ints so that in most cases
                                                     memory allocation will not be needed */
} DFBVideoProviderEvent;

/*
 * Event for usage by the user of this library.
 */
typedef struct {
     DFBEventClass                   clazz;      /* clazz of event */

     unsigned int                    type;       /* custom type */
     void                           *data;       /* custom data */
} DFBUserEvent;

/*
 * Universal event for custom usage with variable size.
 */
typedef struct {
     DFBEventClass                   clazz;      /* clazz of event (DFEC_UNIVERSAL) */
     unsigned int                    size;       /* size of this event, minimum is sizeof(DFBUniversalEvent),
                                                    e.g. 8 bytes (on 32bit architectures) */


     /* custom data follows, size of this data is 'size' - sizeof(DFBUniversalEvent) */
} DFBUniversalEvent;

/*
 * General container for a DirectFB Event.
 */
typedef union {
     DFBEventClass                   clazz;         /* clazz of event */
     DFBInputEvent                   input;         /* field for input events */
     DFBWindowEvent                  window;        /* field for window events */
     DFBUserEvent                    user;          /* field for user-defined events */
     DFBUniversalEvent               universal;     /* field for universal events */
     DFBVideoProviderEvent           videoprovider; /* field for video provider */
} DFBEvent;

#define DFB_EVENT(e)          ((DFBEvent *) (e))

/*
 * Statistics about event buffer queue.
 */
typedef struct {
     unsigned int   num_events;              /* Total number of events in the queue. */

     unsigned int   DFEC_INPUT;              /* Number of input events. */
     unsigned int   DFEC_WINDOW;             /* Number of window events. */
     unsigned int   DFEC_USER;               /* Number of user events. */
     unsigned int   DFEC_UNIVERSAL;          /* Number of universal events. */
     unsigned int   DFEC_VIDEOPROVIDER;      /* Number of universal events. */

     unsigned int   DIET_KEYPRESS;
     unsigned int   DIET_KEYRELEASE;
     unsigned int   DIET_BUTTONPRESS;
     unsigned int   DIET_BUTTONRELEASE;
     unsigned int   DIET_AXISMOTION;

     unsigned int   DWET_POSITION;
     unsigned int   DWET_SIZE;
     unsigned int   DWET_CLOSE;
     unsigned int   DWET_DESTROYED;
     unsigned int   DWET_GOTFOCUS;
     unsigned int   DWET_LOSTFOCUS;
     unsigned int   DWET_KEYDOWN;
     unsigned int   DWET_KEYUP;
     unsigned int   DWET_BUTTONDOWN;
     unsigned int   DWET_BUTTONUP;
     unsigned int   DWET_MOTION;
     unsigned int   DWET_ENTER;
     unsigned int   DWET_LEAVE;
     unsigned int   DWET_WHEEL;
     unsigned int   DWET_POSITION_SIZE;

     unsigned int   DVPET_STARTED;
     unsigned int   DVPET_STOPPED;
     unsigned int   DVPET_SPEEDCHANGE;
     unsigned int   DVPET_STREAMCHANGE;
     unsigned int   DVPET_FATALERROR;
     unsigned int   DVPET_FINISHED;
     unsigned int   DVPET_SURFACECHANGE;
     unsigned int   DVPET_FRAMEDECODED;
     unsigned int   DVPET_FRAMEDISPLAYED;
     unsigned int   DVPET_DATAEXHAUSTED;
     unsigned int   DVPET_DATALOW;
     unsigned int   DVPET_VIDEOACTION;
     unsigned int   DVPET_DATAHIGH;
     unsigned int   DVPET_BUFFERTIMELOW;
     unsigned int   DVPET_BUFFERTIMEHIGH;
} DFBEventBufferStats;


/************************
 * IDirectFBEventBuffer *
 ************************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBEventBuffer,


   /** Buffer handling **/

     /*
      * Clear all events stored in this buffer.
      */
     DFBResult (*Reset) (
          IDirectFBEventBuffer     *thiz
     );


   /** Waiting for events **/

     /*
      * Wait for the next event to occur.
      * Thread is idle in the meantime.
      */
     DFBResult (*WaitForEvent) (
          IDirectFBEventBuffer     *thiz
     );

     /*
      * Block until next event to occur or timeout is reached.
      * Thread is idle in the meantime.
      */
     DFBResult (*WaitForEventWithTimeout) (
          IDirectFBEventBuffer     *thiz,
          unsigned int              seconds,
          unsigned int              milli_seconds
     );


   /** Fetching events **/

     /*
      * Get the next event and remove it from the FIFO.
      */
     DFBResult (*GetEvent) (
          IDirectFBEventBuffer     *thiz,
          DFBEvent                 *ret_event
     );

     /*
      * Get the next event but leave it there, i.e. do a preview.
      */
     DFBResult (*PeekEvent) (
          IDirectFBEventBuffer     *thiz,
          DFBEvent                 *ret_event
     );

     /*
      * Check if there is a pending event in the queue. This
      * function returns DFB_OK if there is at least one event,
      * DFB_BUFFER_EMPTY otherwise.
      */
     DFBResult (*HasEvent) (
          IDirectFBEventBuffer     *thiz
     );


   /** Sending events **/

     /*
      * Put an event into the FIFO.
      *
      * This function does not wait until the event got fetched.
      */
     DFBResult (*PostEvent) (
          IDirectFBEventBuffer     *thiz,
          const DFBEvent           *event
     );

     /*
      * Wake up any thread waiting for events in this buffer.
      *
      * This method causes any IDirectFBEventBuffer::WaitForEvent() or
      * IDirectFBEventBuffer::WaitForEventWithTimeout() call to return with DFB_INTERRUPTED.
      *
      * It should be used rather than sending wake up messages which
      * may pollute the queue and consume lots of CPU and memory compared to
      * this 'single code line method'.
      */
     DFBResult (*WakeUp) (
          IDirectFBEventBuffer     *thiz
     );


   /** Special handling **/

     /*
      * Create a file descriptor for reading events.
      *
      * This method provides an alternative for reading events from an event buffer.
      * It creates a file descriptor which can be used in select(), poll() or read().
      *
      * In general only non-threaded applications which already use select() or poll() need it.
      *
      * <b>Note:</b> This method flushes the event buffer. After calling this method all other
      * methods except IDirectFBEventBuffer::PostEvent() will return DFB_UNSUPPORTED.
      * Calling this method again will return DFB_BUSY.
      */
     DFBResult (*CreateFileDescriptor) (
          IDirectFBEventBuffer     *thiz,
          int                      *ret_fd
     );


   /** Statistics **/

     /*
      * Enable/disable collection of event buffer statistics.
      */
     DFBResult (*EnableStatistics) (
          IDirectFBEventBuffer     *thiz,
          DFBBoolean                enable
     );

     /*
      * Query collected event buffer statistics.
      */
     DFBResult (*GetStatistics) (
          IDirectFBEventBuffer     *thiz,
          DFBEventBufferStats      *ret_stats
     );
)

/*
 * The key selection defines a mode for filtering keys while the window is having the focus.
 */
typedef enum {
     DWKS_ALL            = 0x00000000,  /* Select all keys (default). */
     DWKS_NONE           = 0x00000001,  /* Don't select any key. */
     DWKS_LIST           = 0x00000002   /* Select a list of keys. */
} DFBWindowKeySelection;

typedef enum {
     DWGM_DEFAULT        = 0x00000000,  /* Use default values. */
     DWGM_FOLLOW         = 0x00000001,  /* Use values of parent window. */
     DWGM_RECTANGLE      = 0x00000002,  /* Use pixel values as defined. */
     DWGM_LOCATION       = 0x00000003   /* Use relative values as defined. */
} DFBWindowGeometryMode;

typedef struct {
     DFBWindowGeometryMode    mode;

     DFBRectangle             rectangle;
     DFBLocation              location;
} DFBWindowGeometry;

/*******************
 * IDirectFBWindow *
 *******************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBWindow,

   /** Retrieving information **/

     /*
      * Get the unique window ID.
      */
     DFBResult (*GetID) (
          IDirectFBWindow               *thiz,
          DFBWindowID                   *ret_window_id
     );

     /*
      * Get the current position of this window.
      */
     DFBResult (*GetPosition) (
          IDirectFBWindow               *thiz,
          int                           *ret_x,
          int                           *ret_y
     );

     /*
      * Get the size of the window in pixels.
      */
     DFBResult (*GetSize) (
          IDirectFBWindow               *thiz,
          int                           *ret_width,
          int                           *ret_height
     );


   /** Event handling **/

     /*
      * Create an event buffer for this window and attach it.
      */
     DFBResult (*CreateEventBuffer) (
          IDirectFBWindow               *thiz,
          IDirectFBEventBuffer         **ret_buffer
     );

     /*
      * Attach an existing event buffer to this window.
      *
      * NOTE: Attaching multiple times generates multiple events.
      *
      */
     DFBResult (*AttachEventBuffer) (
          IDirectFBWindow               *thiz,
          IDirectFBEventBuffer          *buffer
     );
     
     /*
      * Detach an event buffer from this window.
      */
     DFBResult (*DetachEventBuffer) (
          IDirectFBWindow               *thiz,
          IDirectFBEventBuffer          *buffer
     );

     /*
      * Enable specific events to be sent to the window.
      *
      * The argument is a mask of events that will be set in the
      * window's event mask. The default event mask is DWET_ALL.
      */
     DFBResult (*EnableEvents) (
          IDirectFBWindow               *thiz,
          DFBWindowEventType             mask
     );

     /*
      * Disable specific events from being sent to the window.
      *
      * The argument is a mask of events that will be cleared in
      * the window's event mask. The default event mask is DWET_ALL.
      */
     DFBResult (*DisableEvents) (
          IDirectFBWindow               *thiz,
          DFBWindowEventType             mask
     );


   /** Surface handling **/

     /*
      * Get an interface to the backing store surface.
      *
      * This surface has to be flipped to make previous drawing
      * commands visible, i.e. to repaint the windowstack for
      * that region.
      */
     DFBResult (*GetSurface) (
          IDirectFBWindow               *thiz,
          IDirectFBSurface             **ret_surface
     );


   /** Appearance and Behaviour **/

     /*
      * Set property controlling appearance and behaviour of the window.
      */
     DFBResult (*SetProperty) (
          IDirectFBWindow               *thiz,
          const char                    *key,
          void                          *value,
          void                         **ret_old_value
     );

     /*
      * Get property controlling appearance and behaviour of the window.
      */
     DFBResult (*GetProperty) (
          IDirectFBWindow               *thiz,
          const char                    *key,
          void                         **ret_value
     );

     /*
      * Remove property controlling appearance and behaviour of the window.
      */
     DFBResult (*RemoveProperty) (
          IDirectFBWindow               *thiz,
          const char                    *key,
          void                         **ret_value
     );

     /*
      * Set options controlling appearance and behaviour of the window.
      */
     DFBResult (*SetOptions) (
          IDirectFBWindow               *thiz,
          DFBWindowOptions               options
     );

     /*
      * Get options controlling appearance and behaviour of the window.
      */
     DFBResult (*GetOptions) (
          IDirectFBWindow               *thiz,
          DFBWindowOptions              *ret_options
     );

     /*
      * Set the window color, or colorises the window.
      *
      * In case you specified DWCAPS_COLOR, this sets the window draw color.
      * In case you didn't, it colorises the window with this color; this will darken the window.
      * no DWCAPS_COLOR and an opacity of 0 means: no effect.
      */
     DFBResult (*SetColor) (
          IDirectFBWindow               *thiz,
          u8                             r,
          u8                             g,
          u8                             b,
          u8                             a
     );

     /*
      * Set the window color key.
      *
      * If a pixel of the window matches this color the
      * underlying window or the background is visible at this
      * point.
      */
     DFBResult (*SetColorKey) (
          IDirectFBWindow               *thiz,
          u8                             r,
          u8                             g,
          u8                             b
     );

     /*
      * Set the window color key (indexed).
      *
      * If a pixel (indexed format) of the window matches this
      * color index the underlying window or the background is
      * visible at this point.
      */
     DFBResult (*SetColorKeyIndex) (
          IDirectFBWindow               *thiz,
          unsigned int                   index
     );

     /*
      * Set the window's global opacity factor.
      *
      * Set it to "0" to hide a window.
      * Setting it to "0xFF" makes the window opaque if
      * it has no alpha channel.
      */
     DFBResult (*SetOpacity) (
          IDirectFBWindow               *thiz,
          u8                             opacity
     );

     /*
      * Disable alpha channel blending for one region of the window.
      *
      * If DWOP_ALPHACHANNEL and DWOP_OPAQUE_REGION are set but not DWOP_COLORKEYING
      * and the opacity of the window is 255 the window gets rendered
      * without alpha blending within the specified region.
      *
      * This is extremely useful for alpha blended window decorations while
      * the main content stays opaque and gets rendered faster.
      */
     DFBResult (*SetOpaqueRegion) (
          IDirectFBWindow               *thiz,
          int                            x1,
          int                            y1,
          int                            x2,
          int                            y2
     );

     /*
      * Get the current opacity factor of this window.
      */
     DFBResult (*GetOpacity) (
          IDirectFBWindow               *thiz,
          u8                            *ret_opacity
     );

     /*
      * Bind a cursor shape to this window.
      *
      * This method will set a per-window cursor shape. Everytime
      * the cursor enters this window, the specified shape is set.
      *
      * Passing NULL will unbind a set shape and release its surface.
      */
     DFBResult (*SetCursorShape) (
          IDirectFBWindow               *thiz,
          IDirectFBSurface              *shape,
          int                            hot_x,
          int                            hot_y
     );


   /** Focus handling **/

     /*
      * Pass the focus to this window.
      */
     DFBResult (*RequestFocus) (
          IDirectFBWindow               *thiz
     );

     /*
      * Grab the keyboard, i.e. all following keyboard events are
      * sent to this window ignoring the focus.
      */
     DFBResult (*GrabKeyboard) (
          IDirectFBWindow               *thiz
     );

     /*
      * Ungrab the keyboard, i.e. switch to standard key event
      * dispatching.
      */
     DFBResult (*UngrabKeyboard) (
          IDirectFBWindow               *thiz
     );

     /*
      * Grab the pointer, i.e. all following mouse events are
      * sent to this window ignoring the focus.
      */
     DFBResult (*GrabPointer) (
          IDirectFBWindow               *thiz
     );

     /*
      * Ungrab the pointer, i.e. switch to standard mouse event
      * dispatching.
      */
     DFBResult (*UngrabPointer) (
          IDirectFBWindow               *thiz
     );

     /*
      * Grab a specific key, i.e. all following events of this key are
      * sent to this window ignoring the focus.
      */
     DFBResult (*GrabKey) (
          IDirectFBWindow               *thiz,
          DFBInputDeviceKeySymbol        symbol,
          DFBInputDeviceModifierMask     modifiers
     );

     /*
      * Ungrab a specific key, i.e. switch to standard key event
      * dispatching.
      */
     DFBResult (*UngrabKey) (
          IDirectFBWindow               *thiz,
          DFBInputDeviceKeySymbol        symbol,
          DFBInputDeviceModifierMask     modifiers
     );


   /** Position and Size **/

     /*
      * Move the window by the specified distance.
      */
     DFBResult (*Move) (
          IDirectFBWindow               *thiz,
          int                            dx,
          int                            dy
     );

     /*
      * Move the window to the specified coordinates.
      */
     DFBResult (*MoveTo) (
          IDirectFBWindow               *thiz,
          int                            x,
          int                            y
     );

     /*
      * Resize the window.
      */
     DFBResult (*Resize) (
          IDirectFBWindow               *thiz,
          int                            width,
          int                            height
     );


   /** Stacking **/

     /*
      * Put the window into a specific stacking class.
      */
     DFBResult (*SetStackingClass) (
          IDirectFBWindow               *thiz,
          DFBWindowStackingClass         stacking_class
     );

     /*
      * Raise the window by one within the window stack.
      */
     DFBResult (*Raise) (
          IDirectFBWindow               *thiz
     );

     /*
      * Lower the window by one within the window stack.
      */
     DFBResult (*Lower) (
          IDirectFBWindow               *thiz
     );

     /*
      * Put the window on the top of the window stack.
      */
     DFBResult (*RaiseToTop) (
          IDirectFBWindow               *thiz
     );

     /*
      * Send a window to the bottom of the window stack.
      */
     DFBResult (*LowerToBottom) (
          IDirectFBWindow               *thiz
     );

     /*
      * Put a window on top of another window.
      */
     DFBResult (*PutAtop) (
          IDirectFBWindow               *thiz,
          IDirectFBWindow               *lower
     );

     /*
      * Put a window below another window.
      */
     DFBResult (*PutBelow) (
          IDirectFBWindow               *thiz,
          IDirectFBWindow               *upper
     );


   /** Closing **/

     /*
      * Send a close message to the window.
      *
      * This function sends a message of type DWET_CLOSE to the window.
      * It does NOT actually close it.
      */
     DFBResult (*Close) (
          IDirectFBWindow               *thiz
     );

     /*
      * Destroys the window and sends a destruction message.
      *
      * This function sends a message of type DWET_DESTROY to
      * the window after removing it from the window stack and
      * freeing its data.  Some functions called from this
      * interface will return DFB_DESTROYED after that.
      */
     DFBResult (*Destroy) (
          IDirectFBWindow               *thiz
     );


   /** Geometry **/

     /*
      * Set position and size in one step.
      */
     DFBResult (*SetBounds) (
          IDirectFBWindow               *thiz,
          int                            x,
          int                            y,
          int                            width,
          int                            height
     );


   /** Scaling **/

     /*
      * Resize the surface of a scalable window.
      *
      * This requires the option DWOP_SCALE.
      * See IDirectFBWindow::SetOptions().
      */
     DFBResult (*ResizeSurface) (
          IDirectFBWindow               *thiz,
          int                            width,
          int                            height
     );


   /** Binding **/
     
     /*
      * Bind a window at the specified position of this window.
      *
      * After binding, bound window will be automatically moved
      * when this window moves to a new position.<br>
      * Binding the same window to multiple windows is not supported.
      * Subsequent call to Bind() automatically unbounds the bound window
      * before binding it again.<br>
      * To move the bound window to a new position call Bind() again 
      * with the new coordinates.
      */
     DFBResult (*Bind) (
          IDirectFBWindow               *thiz,
          IDirectFBWindow               *window,
          int                            x,
          int                            y
     );

     /*
      * Unbind a window from this window.
      */
     DFBResult (*Unbind) (
          IDirectFBWindow               *thiz,
          IDirectFBWindow               *window
     );


   /** Key selection **/

     /*
      * Selects a mode for filtering keys while being focused.
      *
      * The <b>selection</b> defines whether all, none or a specific set (list) of keys is selected.
      * In case of a specific set, the <b>keys</b> array with <b>num_keys</b> has to be provided.
      *
      * Multiple calls to this method are possible. Each overrides all settings from the previous call.
      */
     DFBResult (*SetKeySelection) (
          IDirectFBWindow               *thiz,
          DFBWindowKeySelection          selection,
          const DFBInputDeviceKeySymbol *keys,
          unsigned int                   num_keys
     );

     /*
      * Grab all unselected (filtered out) keys.
      *
      * Unselected keys are those not selected by the focused window. These keys won't be sent
      * to that window. Instead one window in the stack can collect them.
      *
      * See also IDirectFBWindow::UngrabUnselectedKeys() and IDirectFBWindow::SetKeySelection().
      */
     DFBResult (*GrabUnselectedKeys) (
          IDirectFBWindow               *thiz
     );

     /*
      * Release the grab of unselected (filtered out) keys.
      *
      * See also IDirectFBWindow::GrabUnselectedKeys() and IDirectFBWindow::SetKeySelection().
      */
     DFBResult (*UngrabUnselectedKeys) (
          IDirectFBWindow               *thiz
     );


   /** Advanced Geometry **/

     /*
      * Set area of surface to be shown in window.
      *
      * Default and maximum is to show whole surface.
      */
     DFBResult (*SetSrcGeometry) (
          IDirectFBWindow               *thiz,
          const DFBWindowGeometry       *geometry
     );

     /*
      * Set destination location of window within its bounds.
      *
      * Default and maximum is to fill whole bounds.
      */
     DFBResult (*SetDstGeometry) (
          IDirectFBWindow               *thiz,
          const DFBWindowGeometry       *geometry
     );

   /** Association **/

     /*
      * Change the window association.
      *
      * If <b>window_id</b> is 0, the window will be dissociated.
      */
     DFBResult (*SetAssociation) (
          IDirectFBWindow               *thiz,
          DFBWindowID                    window_id
     );

   /** Application ID **/

     /*
      * Set application ID.
      * 
      * The usage of the application ID is not imposed by DirectFB 
      * and can be used at will by the application. Any change will
      * be notified, and as such, an application manager using SaWMan
      * can be used to act on any change.
      */
     DFBResult (*SetApplicationID) (
          IDirectFBWindow               *thiz,
          unsigned long                  application_id
     );

     /*
      * Get current application ID.
      */
     DFBResult (*GetApplicationID) (
          IDirectFBWindow               *thiz,
          unsigned long                 *ret_application_id
     );
)


/*
 * Called for each provided text encoding.
 */
typedef DFBEnumerationResult (*DFBTextEncodingCallback) (
     DFBTextEncodingID    encoding_id,
     const char          *name,
     void                *context
);

/*****************
 * IDirectFBFont *
 *****************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBFont,

   /** Retrieving information **/

     /*
      * Get the distance from the baseline to the top of the
      * logical extents of this font.
      */
     DFBResult (*GetAscender) (
          IDirectFBFont            *thiz,
          int                      *ret_ascender
     );

     /*
      * Get the distance from the baseline to the bottom of
      * the logical extents of this font.
      *
      * This is a negative value!
      */
     DFBResult (*GetDescender) (
          IDirectFBFont            *thiz,
          int                      *ret_descender
     );

     /*
      * Get the logical height of this font. This is the vertical
      * distance from one baseline to the next when writing
      * several lines of text. Note that this value does not
      * correspond the height value specified when loading the
      * font.
      */
     DFBResult (*GetHeight) (
          IDirectFBFont            *thiz,
          int                      *ret_height
     );

     /*
      * Get the maximum character width.
      *
      * This is a somewhat dubious value. Not all fonts
      * specify it correcly. It can give you an idea of
      * the maximum expected width of a rendered string.
      */
     DFBResult (*GetMaxAdvance) (
          IDirectFBFont            *thiz,
          int                      *ret_maxadvance
     );

     /*
      * Get the kerning to apply between two glyphs specified by
      * their character codes.
      */
     DFBResult (*GetKerning) (
          IDirectFBFont            *thiz,
          unsigned int              prev,
          unsigned int              current,
          int                      *ret_kern_x,
          int                      *ret_kern_y
     );

   /** Measurements **/

     /*
      * Get the logical width of the specified string
      * as if it were drawn with this font.
      *
      * Bytes specifies the number of bytes to take from the
      * string or -1 for the complete NULL-terminated string.
      *
      * The returned width may be different than the actual drawn
      * width of the text since this function returns the logical
      * width that should be used to layout the text. A negative
      * width indicates right-to-left rendering.
      */
     DFBResult (*GetStringWidth) (
          IDirectFBFont            *thiz,
          const char               *text,
          int                       bytes,
          int                      *ret_width
     );

     /*
      * Get the logical and real extents of the specified
      * string as if it were drawn with this font.
      *
      * Bytes specifies the number of bytes to take from the
      * string or -1 for the complete NULL-terminated string.
      *
      * The logical rectangle describes the typographic extents
      * and should be used to layout text. The ink rectangle
      * describes the smallest rectangle containing all pixels
      * that are touched when drawing the string. If you only
      * need one of the rectangles, pass NULL for the other one.
      *
      * The ink rectangle is guaranteed to be a valid rectangle
      * with positive width and height, while the logical
      * rectangle may have negative width indicating right-to-left
      * layout.
      *
      * The rectangle offsets are reported relative to the
      * baseline and refer to the text being drawn using
      * DSTF_LEFT.
      */
     DFBResult (*GetStringExtents) (
          IDirectFBFont            *thiz,
          const char               *text,
          int                       bytes,
          DFBRectangle             *ret_logical_rect,
          DFBRectangle             *ret_ink_rect
     );

     /*
      * Get the extents of a glyph specified by its character code.
      *
      * The rectangle describes the the smallest rectangle
      * containing all pixels that are touched when drawing the
      * glyph. It is reported relative to the baseline. If you
      * only need the advance, pass NULL for the rectangle.
      *
      * The advance describes the horizontal offset to the next
      * glyph (without kerning applied). It may be a negative
      * value indicating left-to-right rendering. If you don't
      * need this value, pass NULL for advance.
      */
     DFBResult (*GetGlyphExtents) (
          IDirectFBFont            *thiz,
          unsigned int              character,
          DFBRectangle             *ret_rect,
          int                      *ret_advance
     );

     /*
      * Get the next explicit or automatic break within a string
      * along with the logical width of the text, the string length,
      * and a pointer to the next text line.
      *  
      * The bytes specifies the maximum number of bytes to take from the
      * string or -1 for complete NULL-terminated string.
      *
      * The max_width specifies logical width of column onto which 
      * the text will be drawn. Then the logical width of fitted
      * text is returned in ret_width. The returned width may overlap
      * the max width specified if there's only one character 
      * that fits.
      *
      * The number of characters that fit into this column is
      * returned by the ret_str_length. This value can be used as 
      * the number of bytes to take when using DrawString().
      *
      * In ret_next_line a pointer to the next line of text is returned. This 
      * will point to NULL or the end of the string if there's no more break.
      */
     DFBResult (*GetStringBreak) (
          IDirectFBFont            *thiz,
          const char               *text,
          int                       bytes,
          int                       max_width,
          int                      *ret_width,
          int                      *ret_str_length,
          const char              **ret_next_line
     );

   /** Encodings **/

     /*
      * Change the default encoding used when the font is set at a surface.
      *
      * It's also the encoding used for the measurement functions
      * of this interface, e.g. IDirectFBFont::GetStringExtents().
      */
     DFBResult (*SetEncoding) (
          IDirectFBFont            *thiz,
          DFBTextEncodingID         encoding
     );

     /*
      * Enumerate all provided text encodings.
      */
     DFBResult (*EnumEncodings) (
          IDirectFBFont            *thiz,
          DFBTextEncodingCallback   callback,
          void                     *context
     );

     /*
      * Find an encoding by its name.
      */
     DFBResult (*FindEncoding) (
          IDirectFBFont            *thiz,
          const char               *name,
          DFBTextEncodingID        *ret_encoding
     );
)

/*
 * Capabilities of an image.
 */
typedef enum {
     DICAPS_NONE            = 0x00000000,  /* None of these.            */
     DICAPS_ALPHACHANNEL    = 0x00000001,  /* The image data contains an
                                              alphachannel.             */
     DICAPS_COLORKEY        = 0x00000002   /* The image has a colorkey,
                                              e.g. the transparent color
                                              of a GIF image.           */
} DFBImageCapabilities;

/*
 * Information about an image including capabilities and values
 * belonging to available capabilities.
 */
typedef struct {
     DFBImageCapabilities     caps;        /* capabilities              */

     u8                       colorkey_r;  /* colorkey red channel      */
     u8                       colorkey_g;  /* colorkey green channel    */
     u8                       colorkey_b;  /* colorkey blue channel     */
} DFBImageDescription;


typedef enum {
        DIRCR_OK,
        DIRCR_ABORT
} DIRenderCallbackResult;
/*
 * Called whenever a chunk of the image is decoded.
 * Has to be registered with IDirectFBImageProvider::SetRenderCallback().
 */
typedef DIRenderCallbackResult (*DIRenderCallback)(DFBRectangle *rect, void *ctx);

/**************************
 * IDirectFBImageProvider *
 **************************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBImageProvider,

   /** Retrieving information **/

     /*
      * Get a surface description that best matches the image
      * contained in the file.
      *
      * For opaque image formats the pixel format of the primary
      * layer is used. For images with alpha channel an ARGB
      * surface description is returned.
      */
     DFBResult (*GetSurfaceDescription) (
          IDirectFBImageProvider   *thiz,
          DFBSurfaceDescription    *ret_dsc
     );

     /*
      * Get a description of the image.
      *
      * This includes stuff that does not belong into the surface
      * description, e.g. a colorkey of a transparent GIF.
      */
     DFBResult (*GetImageDescription) (
          IDirectFBImageProvider   *thiz,
          DFBImageDescription      *ret_dsc
     );


   /** Rendering **/

     /*
      * Render the file contents into the destination contents
      * doing automatic scaling and color format conversion.
      *
      * If the image file has an alpha channel it is rendered
      * with alpha channel if the destination surface is of the
      * ARGB pixelformat. Otherwise, transparent areas are
      * blended over a black background.
      *
      * If a destination rectangle is specified, the rectangle is
      * clipped to the destination surface. If NULL is passed as
      * destination rectangle, the whole destination surface is
      * taken. The image is stretched to fill the rectangle.
      */
     DFBResult (*RenderTo) (
          IDirectFBImageProvider   *thiz,
          IDirectFBSurface         *destination,
          const DFBRectangle       *destination_rect
     );

     /*
      * Registers a callback for progressive image loading.
      *
      * The function is called each time a chunk of the image is decoded.
      */
     DFBResult (*SetRenderCallback) (
          IDirectFBImageProvider   *thiz,
          DIRenderCallback          callback,
          void                     *callback_data
     );


   /** Encoding **/

     /*
      * Encode a portion of a surface.
      */
     DFBResult (*WriteBack) (
          IDirectFBImageProvider   *thiz,
          IDirectFBSurface         *surface,
          const DFBRectangle       *src_rect,
          const char               *filename
     );
)

/*
 * Capabilities of an audio/video stream.
 */
typedef enum {
     DVSCAPS_NONE         = 0x00000000, /* None of these.         */
     DVSCAPS_VIDEO        = 0x00000001, /* Stream contains video. */
     DVSCAPS_AUDIO        = 0x00000002  /* Stream contains audio. */
     /* DVSCAPS_SUBPICTURE ?! */
} DFBStreamCapabilities;

#define DFB_STREAM_DESC_ENCODING_LENGTH   30

#define DFB_STREAM_DESC_TITLE_LENGTH     255

#define DFB_STREAM_DESC_AUTHOR_LENGTH    255

#define DFB_STREAM_DESC_ALBUM_LENGTH     255

#define DFB_STREAM_DESC_GENRE_LENGTH      32

#define DFB_STREAM_DESC_COMMENT_LENGTH   255

/*
 * Informations about an audio/video stream.
 */
typedef struct {
     DFBStreamCapabilities  caps;         /* capabilities */

     struct {
          char              encoding[DFB_STREAM_DESC_ENCODING_LENGTH]; /* encoding (e.g. "MPEG4") */
          double            framerate;    /* number of frames per second */
          double            aspect;       /* frame aspect ratio */
          int               bitrate;      /* amount of bits per second */
    	  int               afd;          /* Active Format Descriptor */
    	  int               width;        /* Width as reported by Sequence Header */
    	  int               height;       /* Height as reported by Sequence Header */
     } video;                             /* struct containing the above encoding properties for video */

     struct {
          char              encoding[DFB_STREAM_DESC_ENCODING_LENGTH]; /* encoding (e.g. "AAC") */
          int               samplerate;   /* number of samples per second */
          int               channels;     /* number of channels per sample */
          int               bitrate;      /* amount of bits per second */
     } audio;                             /* struct containing the above four encoding properties for audio */

     char                   title[DFB_STREAM_DESC_TITLE_LENGTH];     /* title   */
     char                   author[DFB_STREAM_DESC_AUTHOR_LENGTH];   /* author  */
     char                   album[DFB_STREAM_DESC_ALBUM_LENGTH];     /* album   */
     short                  year;                                    /* year    */
     char                   genre[DFB_STREAM_DESC_GENRE_LENGTH];     /* genre   */
     char                   comment[DFB_STREAM_DESC_COMMENT_LENGTH]; /* comment */
} DFBStreamDescription;

/*
 * Type of an audio stream.
 */
typedef enum {
     DSF_ES         = 0x00000000, /* ES.  */
     DSF_PES        = 0x00000001, /* PES. */
} DFBStreamFormat;

/*
 * Stream attributes for an audio/video stream.
 */
typedef struct {
     struct {
          char            encoding[DFB_STREAM_DESC_ENCODING_LENGTH]; /* encoding (e.g. "MPEG4") */
          DFBStreamFormat format;                                    /* format of the video stream */
     } video;                           /* struct containing the above two encoding properties for video */
     
     struct {
          char            encoding[DFB_STREAM_DESC_ENCODING_LENGTH]; /* encoding (e.g. "AAC") */
          DFBStreamFormat format;                                    /* format of the audio stream */
     } audio;                           /* struct containing the above two encoding properties for audio */
} DFBStreamAttributes;

/*
 * Buffer levels and occupancy for Audio/Video input buffers.
 */
typedef struct {
     DFBStreamCapabilities valid;        /* Which of the Audio / Video sections are valid. */

     struct {
         unsigned int  buffer_size;      /* Size in bytes of the input buffer to video decoder */
         unsigned int  minimum_level;    /* The level at which a DVPET_DATALOW event will be generated. */
         unsigned int  maximum_level;    /* The level at which a DVPET_DATAHIGH event will be generated. */
         unsigned int  current_level;    /* Current fill level of video input buffer.*/
     } video;

     struct {
         unsigned int  buffer_size;      /* Size in bytes of the input buffer to audio decoder */
         unsigned int  minimum_level;    /* The level at which a DVPET_DATALOW event will be generated. */
         unsigned int  maximum_level;    /* The level at which a DVPET_DATAHIGH event will be generated. */
         unsigned int  current_level;    /* Current fill level of audio input buffer.*/
     } audio;
} DFBBufferOccupancy;

/*
 * Buffer thresholds for Audio and Video.
 */
typedef struct {
     DFBStreamCapabilities selection;    /* Which of the Audio / Video are we setting? */

     struct {
          unsigned int  minimum_level;   /* The level at which a DVPET_DATALOW event will be generated. */
          unsigned int  maximum_level;   /* The level at which a DVPET_DATAHIGH event will be generated. */
          unsigned int  minimum_time;    /* The level at which a DVPET_BUFFERTIMELOW event will be generated. */
          unsigned int  maximum_time;    /* The level at which a DVPET_BUFFERTIMEHIGH event will be generated. */
     } video;

     struct {
          unsigned int  minimum_level;   /* The level at which a DVPET_DATALOW event will be generated. */
          unsigned int  maximum_level;   /* The level at which a DVPET_DATAHIGH event will be generated. */
          unsigned int  minimum_time;    /* The level at which a DVPET_BUFFERTIMELOW event will be generated. */
          unsigned int  maximum_time;    /* The level at which a DVPET_BUFFERTIMEHIGH event will be generated. */
     } audio;
} DFBBufferThresholds;

/*
 * Called for each written frame.
 */
typedef void (*DVFrameCallback)(void *ctx);


/**************************
 * IDirectFBVideoProvider *
 **************************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBVideoProvider,

   /** Retrieving information **/

     /*
      * Retrieve information about the video provider's
      * capabilities.
      */
     DFBResult (*GetCapabilities) (
          IDirectFBVideoProvider        *thiz,
          DFBVideoProviderCapabilities  *ret_caps
     );

     /*
      * Get a surface description that best matches the video
      * contained in the file.
      */
     DFBResult (*GetSurfaceDescription) (
          IDirectFBVideoProvider   *thiz,
          DFBSurfaceDescription    *ret_dsc
     );

     /*
      * Get a description of the video stream.
      */
     DFBResult (*GetStreamDescription) (
          IDirectFBVideoProvider   *thiz,
          DFBStreamDescription     *ret_dsc
     );


   /** Playback **/

     /*
      * Play the video rendering it into the specified rectangle
      * of the destination surface.
      *
      * Optionally a callback can be registered that is called
      * for each rendered frame. This is especially important if
      * you are playing to a flipping surface. In this case, you
      * should flip the destination surface in your callback.
      */
     DFBResult (*PlayTo) (
          IDirectFBVideoProvider   *thiz,
          IDirectFBSurface         *destination,
          const DFBRectangle       *destination_rect,
          DVFrameCallback           callback,
          void                     *ctx
     );

     /*
      * Stop rendering into the destination surface.
      */
     DFBResult (*Stop) (
          IDirectFBVideoProvider   *thiz
     );

     /*
      * Get the status of the playback.
      */
     DFBResult (*GetStatus) (
          IDirectFBVideoProvider   *thiz,
          DFBVideoProviderStatus   *ret_status
     );


   /** Media Control **/

     /*
      * Seeks to a position within the stream.
      */
     DFBResult (*SeekTo) (
          IDirectFBVideoProvider   *thiz,
          double                    seconds
     );

     /*
      * Gets current position within the stream.
      */
     DFBResult (*GetPos) (
          IDirectFBVideoProvider   *thiz,
          double                   *ret_seconds
     );

     /*
      * Gets the length of the stream.
      */
     DFBResult (*GetLength) (
          IDirectFBVideoProvider   *thiz,
          double                   *ret_seconds
     );

   /** Color Adjustment **/

     /*
      * Gets the current video color settings.
      */
     DFBResult (*GetColorAdjustment) (
          IDirectFBVideoProvider   *thiz,
          DFBColorAdjustment       *ret_adj
     );

     /*
      * Adjusts the video colors.
      *
      * This function only has an effect if the video provider
      * supports this operation. Check the providers capabilities
      * to find out if this is the case.
      */
     DFBResult (*SetColorAdjustment) (
          IDirectFBVideoProvider   *thiz,
          const DFBColorAdjustment *adj
     );

   /** Interactivity **/

     /*
      * Send an input or window event.
      *
      * This method allows to redirect events to an interactive
      * video provider. Events must be relative to the specified
      * rectangle of the destination surface.
      */
     DFBResult (*SendEvent) (
          IDirectFBVideoProvider   *thiz,
          const DFBEvent           *event
     );

   /** Advanced control **/
   
     /*
      * Set the flags controlling playback mode.
      */
     DFBResult (*SetPlaybackFlags) (
          IDirectFBVideoProvider        *thiz,
          DFBVideoProviderPlaybackFlags  flags
     );
     
     /*
      * Set the speed multiplier.
      *
      * Values below 1.0 reduce playback speed 
      * while values over 1.0 increase it.<br>
      * Specifying a value of 0.0 has the effect of
      * putting the playback in pause mode without 
      * stopping the video provider.
      */
     DFBResult (*SetSpeed) (
          IDirectFBVideoProvider   *thiz,
          double                    multiplier
     );
     
     /*
      * Get current speed multiplier.
      */
     DFBResult (*GetSpeed) (
          IDirectFBVideoProvider   *thiz,
          double                   *ret_multiplier
     );
     
     /*
      * Set volume level.
      *
      * Values between 0.0f and 1.0f adjust the volume level.
      * Values over 1.0f increase the amplification level.
      */
     DFBResult (*SetVolume) (
          IDirectFBVideoProvider   *thiz,
          float                     level
     );

     /*
      * Get volume level.
      */
     DFBResult (*GetVolume) (
          IDirectFBVideoProvider   *thiz,
          float                    *ret_level
     );

     /*
      * Set the stream attributes.
      * May have a wrapper with different media types types encapsulated.
      * Can use this method to indicate the content type.
      */
     DFBResult (*SetStreamAttributes) (
          IDirectFBVideoProvider   *thiz,
          DFBStreamAttributes       attr
     );

     /*
      * Set the audio units that are being used for output.
      * May have multiple audio outputs and need to configure them on/off
      * dynamically. 
      */
     DFBResult (*SetAudioOutputs) (
          IDirectFBVideoProvider     *thiz,
          DFBVideoProviderAudioUnits *audioUnits
     );

     /*
      * Get the audio units that are being used for output.
      */
     DFBResult (*GetAudioOutputs) (
          IDirectFBVideoProvider     *thiz,
          DFBVideoProviderAudioUnits *audioUnits
     );

     /*
      * Set the audio delay
      *
      * The parameter is in microseconds. Values < 0 make audio earlier, > 0 make audio later.
      */
      DFBResult (*SetAudioDelay) (
          IDirectFBVideoProvider     *thiz,
          long                        delay
      );


  /** Event buffers **/

     /*
      * Create an event buffer for this video provider and attach it.
      */
     DFBResult (*CreateEventBuffer) (
          IDirectFBVideoProvider     *thiz,
          IDirectFBEventBuffer      **ret_buffer
     );

     /*
      * Attach an existing event buffer to this video provider.
      *
      * NOTE: Attaching multiple times generates multiple events.
      */
     DFBResult (*AttachEventBuffer) (
          IDirectFBVideoProvider     *thiz,
          IDirectFBEventBuffer       *buffer
     );

     /*
      * Enable specific events to be sent from the video provider.
      *
      * The argument is a mask of events that will be set in the
      * videoproviders's event mask. The default event mask is DVPET_ALL.
      */
     DFBResult (*EnableEvents) (
          IDirectFBVideoProvider     *thiz,
          DFBVideoProviderEventType   mask
     );

     /*
      * Disable specific events from being sent from the video provider
      *
      * The argument is a mask of events that will be cleared in
      * the video providers's event mask. The default event mask is DWET_ALL.
      */
     DFBResult (*DisableEvents) (
          IDirectFBVideoProvider     *thiz,
          DFBVideoProviderEventType   mask
     );

     /*
      * Detach an event buffer from this video provider.
      */
     DFBResult (*DetachEventBuffer) (
          IDirectFBVideoProvider     *thiz,
          IDirectFBEventBuffer       *buffer
     );


  /** Buffer control **/

     /*
      * Get buffer occupancy (A/V) when playing this stream.
      */
     DFBResult (*GetBufferOccupancy) (
          IDirectFBVideoProvider   *thiz,
          DFBBufferOccupancy       *ret_occ
     );

     /*
      * Set buffer thresholds for the Audio / Video playback.
      */
     DFBResult (*SetBufferThresholds) (
          IDirectFBVideoProvider   *thiz,
          DFBBufferThresholds       thresh
     );

     /*
      * Get buffer thresholds for the Audio / Video playback.
      */
     DFBResult (*GetBufferThresholds) (
          IDirectFBVideoProvider   *thiz,
          DFBBufferThresholds      *ret_thresh
     );
)

/***********************
 * IDirectFBDataBuffer *
 ***********************/

/*
 * <i>No summary yet...</i>
 */
DEFINE_INTERFACE(   IDirectFBDataBuffer,


   /** Buffer handling **/

     /*
      * Flushes all data in this buffer.
      *
      * This method only applies to streaming buffers.
      */
     DFBResult (*Flush) (
          IDirectFBDataBuffer      *thiz
     );

     /*
      * Finish writing into a streaming buffer.
      *
      * Subsequent calls to PutData will fail,
      * while attempts to fetch data from the buffer will return EOF
      * unless there is still data available.
      */
     DFBResult (*Finish) (
          IDirectFBDataBuffer      *thiz
     );

     /*
      * Seeks to a given byte position.
      *
      * This method only applies to static buffers.
      */
     DFBResult (*SeekTo) (
          IDirectFBDataBuffer      *thiz,
          unsigned int              offset
     );

     /*
      * Get the current byte position within a static buffer.
      *
      * This method only applies to static buffers.
      */
     DFBResult (*GetPosition) (
          IDirectFBDataBuffer      *thiz,
          unsigned int             *ret_offset
     );

     /*
      * Get the length of a static or streaming buffer in bytes.
      *
      * The length of a static buffer is its static size.
      * A streaming buffer has a variable length reflecting
      * the amount of buffered data.
      */
     DFBResult (*GetLength) (
          IDirectFBDataBuffer      *thiz,
          unsigned int             *ret_length
     );

   /** Waiting for data **/

     /*
      * Wait for data to be available.
      * Thread is idle in the meantime.
      *
      * This method blocks until at least the specified number of bytes
      * is available.
      */
     DFBResult (*WaitForData) (
          IDirectFBDataBuffer      *thiz,
          unsigned int              length
     );

     /*
      * Wait for data to be available within an amount of time.
      * Thread is idle in the meantime.
      *
      * This method blocks until at least the specified number of bytes
      * is available or the timeout is reached.
      */
     DFBResult (*WaitForDataWithTimeout) (
          IDirectFBDataBuffer      *thiz,
          unsigned int              length,
          unsigned int              seconds,
          unsigned int              milli_seconds
     );


   /** Retrieving data **/

     /*
      * Fetch data from a streaming or static buffer.
      *
      * Static buffers will increase the data pointer.
      * Streaming buffers will flush the data portion.
      *
      * The maximum number of bytes to fetch is specified by "length",
      * the actual number of bytes fetched is returned via "read".
      */
     DFBResult (*GetData) (
          IDirectFBDataBuffer      *thiz,
          unsigned int              length,
          void                     *ret_data,
          unsigned int             *ret_read
     );

     /*
      * Peek data from a streaming or static buffer.
      *
      * Unlike GetData() this method won't increase the data
      * pointer or flush any portions of the data held.
      *
      * Additionally an offset relative to the current data pointer
      * or beginning of the streaming buffer can be specified.
      *
      * The maximum number of bytes to peek is specified by "length",
      * the actual number of bytes peeked is returned via "read".
      */
     DFBResult (*PeekData) (
          IDirectFBDataBuffer      *thiz,
          unsigned int              length,
          int                       offset,
          void                     *ret_data,
          unsigned int             *ret_read
     );

     /*
      * Check if there is data available.
      *
      * This method returns DFB_OK if there is data available,
      * DFB_BUFFER_EMPTY otherwise.
      */
     DFBResult (*HasData) (
          IDirectFBDataBuffer      *thiz
     );


   /** Providing data **/

     /*
      * Appends a block of data to a streaming buffer.
      *
      * This method does not wait until the data got fetched.
      *
      * Static buffers don't support this method.
      */
     DFBResult (*PutData) (
          IDirectFBDataBuffer      *thiz,
          const void               *data,
          unsigned int              length
     );


   /** Media from data **/

     /*
      * Creates an image provider using the buffers data.
      */
     DFBResult (*CreateImageProvider) (
          IDirectFBDataBuffer      *thiz,
          IDirectFBImageProvider  **interface
     );

     /*
      * Creates a video provider using the buffers data.
      */
     DFBResult (*CreateVideoProvider) (
          IDirectFBDataBuffer      *thiz,
          IDirectFBVideoProvider  **interface
     );
)

#ifdef __cplusplus
}
#endif

#endif