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
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>AllegroGL: x.c Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript">
$(document).ready(initResizable);
</script>
<link href="alleggl.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.7.3 -->
<div id="top">
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">AllegroGL <span id="projectnumber">0.4.4</span></div>
</td>
</tr>
</tbody>
</table>
</div>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="pages.html"><span>Related Pages</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li class="current"><a href="files.html"><span>Files</span></a></li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>Globals</span></a></li>
</ul>
</div>
</div>
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
initNavTree('x_8c.html','');
</script>
<div id="doc-content">
<div class="header">
<div class="headertitle">
<h1>x.c</h1> </div>
</div>
<div class="contents">
<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This code is (C) AllegroGL contributors, and double licensed under</span>
<a name="l00002"></a>00002 <span class="comment"> * the GPL and zlib licenses. See gpl.txt or zlib.txt for details.</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00004"></a>00004 <span class="comment">/*----------------------------------------------------------------</span>
<a name="l00005"></a>00005 <span class="comment"> * x.c -- Allegro-GLX interfacing</span>
<a name="l00006"></a>00006 <span class="comment"> *----------------------------------------------------------------</span>
<a name="l00007"></a>00007 <span class="comment"> * This is the interface module for use under X.</span>
<a name="l00008"></a>00008 <span class="comment"> */</span>
<a name="l00009"></a>00009 <span class="preprocessor">#include <string.h></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include <stdio.h></span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="preprocessor">#include <allegro.h></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include <xalleg.h></span>
<a name="l00014"></a>00014
<a name="l00015"></a>00015 <span class="preprocessor">#include <allegro/platform/aintunix.h></span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#include "alleggl.h"</span>
<a name="l00018"></a>00018 <span class="preprocessor">#include "allglint.h"</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include "glvtable.h"</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef XLOCK</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor"> #define OLD_ALLEGRO</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor"> #define XLOCK() DISABLE()</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor"> #undef XUNLOCK</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor"> #define XUNLOCK() ENABLE()</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span>
<a name="l00029"></a>00029 <span class="preprocessor">#define PREFIX_I "agl-x INFO: "</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define PREFIX_E "agl-x ERROR: "</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="preprocessor">#ifdef ALLEGRO_XWINDOWS_WITH_XPM</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#include <X11/xpm.h></span>
<a name="l00035"></a>00035 <span class="keyword">extern</span> <span class="keywordtype">void</span> *allegro_icon;
<a name="l00036"></a>00036 <span class="preprocessor">#endif</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">static</span> BITMAP *allegro_gl_x_windowed_init(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00040"></a>00040 <span class="keywordtype">int</span> color_depth);
<a name="l00041"></a>00041 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_exit(BITMAP *bmp);
<a name="l00042"></a>00042 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="keyword">static</span> GFX_MODE_LIST* allegro_gl_x_fetch_mode_list(<span class="keywordtype">void</span>);
<a name="l00044"></a>00044 <span class="preprocessor">#endif</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_vsync(<span class="keywordtype">void</span>);
<a name="l00046"></a>00046 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_hide_mouse(<span class="keywordtype">void</span>);
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">static</span> BITMAP *<a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a> = NULL;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="comment">/* TODO: Revamp the whole window handling under X11 in Allegro and</span>
<a name="l00051"></a>00051 <span class="comment"> * AllegroGL. We really shouldn't have to duplicate code or hack on</span>
<a name="l00052"></a>00052 <span class="comment"> * Allegro internals in AllegroGL - the *only* difference for the AllegroGL</span>
<a name="l00053"></a>00053 <span class="comment"> * window should be the GLX visual (e.g. cursor, icon, VidModeExtension and</span>
<a name="l00054"></a>00054 <span class="comment"> * so on should never have been touched in this file).</span>
<a name="l00055"></a>00055 <span class="comment"> */</span>
<a name="l00056"></a>00056 <span class="preprocessor">#if GET_ALLEGRO_VERSION() >= MAKE_VER(4, 2, 1)</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="keyword">static</span> Window backup_allegro_window = None;
<a name="l00058"></a>00058 <span class="keyword">static</span> Colormap backup_allegro_colormap = None;
<a name="l00059"></a>00059 <span class="preprocessor">#endif</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span>
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="keyword">static</span> BITMAP *allegro_gl_x_fullscreen_init(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00063"></a>00063 <span class="keywordtype">int</span> color_depth);
<a name="l00064"></a>00064
<a name="l00065"></a>00065 GFX_DRIVER gfx_allegro_gl_fullscreen =
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <a class="code" href="alleggl_8h.html#afd00c615b3351d54382b5f883b99544f" title="Fullscreen OpenGL graphics driver for Allegro.">GFX_OPENGL_FULLSCREEN</a>,
<a name="l00068"></a>00068 empty_string,
<a name="l00069"></a>00069 empty_string,
<a name="l00070"></a>00070 <span class="stringliteral">"AllegroGL Fullscreen (X)"</span>,
<a name="l00071"></a>00071 allegro_gl_x_fullscreen_init,
<a name="l00072"></a>00072 allegro_gl_x_exit,
<a name="l00073"></a>00073 NULL,
<a name="l00074"></a>00074 allegro_gl_x_vsync,
<a name="l00075"></a>00075 NULL,
<a name="l00076"></a>00076 NULL, NULL, NULL,
<a name="l00077"></a>00077 <a class="code" href="videovtb_8c.html#a4dadb9b189453bc9693c032ce63fc5b4" title="create_video_bitmap() overload.">allegro_gl_create_video_bitmap</a>,
<a name="l00078"></a>00078 <a class="code" href="videovtb_8c.html#a69a97f6c3805246762fbefb545f20f87" title="destroy_video_bitmap() overload.">allegro_gl_destroy_video_bitmap</a>,
<a name="l00079"></a>00079 NULL, NULL, <span class="comment">/* No show/request video bitmaps */</span>
<a name="l00080"></a>00080 NULL, NULL,
<a name="l00081"></a>00081 allegro_gl_set_mouse_sprite,
<a name="l00082"></a>00082 allegro_gl_show_mouse,
<a name="l00083"></a>00083 allegro_gl_x_hide_mouse,
<a name="l00084"></a>00084 allegro_gl_move_mouse,
<a name="l00085"></a>00085 allegro_gl_drawing_mode,
<a name="l00086"></a>00086 NULL, NULL,
<a name="l00087"></a>00087 allegro_gl_set_blender_mode,
<a name="l00088"></a>00088 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span> allegro_gl_x_fetch_mode_list,
<a name="l00090"></a>00090 <span class="preprocessor">#else</span>
<a name="l00091"></a>00091 <span class="preprocessor"></span> NULL,
<a name="l00092"></a>00092 <span class="preprocessor">#endif</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span> 0, 0,
<a name="l00094"></a>00094 0,
<a name="l00095"></a>00095 0, 0,
<a name="l00096"></a>00096 0,
<a name="l00097"></a>00097 0,
<a name="l00098"></a>00098 FALSE <span class="comment">/* Windowed mode */</span>
<a name="l00099"></a>00099 };
<a name="l00100"></a>00100
<a name="l00101"></a>00101
<a name="l00102"></a>00102
<a name="l00103"></a>00103 GFX_DRIVER gfx_allegro_gl_windowed =
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 <a class="code" href="alleggl_8h.html#a5fcf0497998fecc3c04bb5b6ce66782b" title="Windowed OpenGL graphics driver for Allegro.">GFX_OPENGL_WINDOWED</a>,
<a name="l00106"></a>00106 empty_string,
<a name="l00107"></a>00107 empty_string,
<a name="l00108"></a>00108 <span class="stringliteral">"AllegroGL Windowed (X)"</span>,
<a name="l00109"></a>00109 allegro_gl_x_windowed_init,
<a name="l00110"></a>00110 allegro_gl_x_exit,
<a name="l00111"></a>00111 NULL,
<a name="l00112"></a>00112 allegro_gl_x_vsync,
<a name="l00113"></a>00113 NULL,
<a name="l00114"></a>00114 NULL, NULL, NULL,
<a name="l00115"></a>00115 <a class="code" href="videovtb_8c.html#a4dadb9b189453bc9693c032ce63fc5b4" title="create_video_bitmap() overload.">allegro_gl_create_video_bitmap</a>,
<a name="l00116"></a>00116 <a class="code" href="videovtb_8c.html#a69a97f6c3805246762fbefb545f20f87" title="destroy_video_bitmap() overload.">allegro_gl_destroy_video_bitmap</a>,
<a name="l00117"></a>00117 NULL, NULL, <span class="comment">/* No show/request video bitmaps */</span>
<a name="l00118"></a>00118 NULL, NULL,
<a name="l00119"></a>00119 allegro_gl_set_mouse_sprite,
<a name="l00120"></a>00120 allegro_gl_show_mouse,
<a name="l00121"></a>00121 allegro_gl_x_hide_mouse,
<a name="l00122"></a>00122 allegro_gl_move_mouse,
<a name="l00123"></a>00123 allegro_gl_drawing_mode,
<a name="l00124"></a>00124 NULL, NULL,
<a name="l00125"></a>00125 allegro_gl_set_blender_mode,
<a name="l00126"></a>00126 NULL, <span class="comment">/* No fetch_mode_list */</span>
<a name="l00127"></a>00127 0, 0,
<a name="l00128"></a>00128 0,
<a name="l00129"></a>00129 0, 0,
<a name="l00130"></a>00130 0,
<a name="l00131"></a>00131 0,
<a name="l00132"></a>00132 TRUE <span class="comment">/* Windowed mode */</span>
<a name="l00133"></a>00133 };
<a name="l00134"></a>00134
<a name="l00135"></a>00135
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keyword">static</span> <span class="keyword">struct </span>allegro_gl_driver allegro_gl_x;
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keyword">static</span> XVisualInfo *allegro_gl_x_windowed_choose_visual (<span class="keywordtype">void</span>);
<a name="l00140"></a>00140 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_x_create_window (<span class="keywordtype">int</span> fullscreen);
<a name="l00141"></a>00141 <span class="keyword">static</span> BITMAP *allegro_gl_x_windowed_create_screen (GFX_DRIVER *drv, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> depth);
<a name="l00142"></a>00142
<a name="l00143"></a>00143 <span class="keyword">static</span> <span class="keywordtype">int</span> decode_visual (XVisualInfo *v, <span class="keyword">struct</span> allegro_gl_display_info *i);
<a name="l00144"></a>00144 <span class="keyword">struct </span>{
<a name="l00145"></a>00145 <span class="keywordtype">int</span> fullscreen;
<a name="l00146"></a>00146 GLXContext ctx;
<a name="l00147"></a>00147 <span class="keywordtype">int</span> major, minor; <span class="comment">/* Major and minor GLX version */</span>
<a name="l00148"></a>00148 <span class="keywordtype">int</span> error_base, event_base;
<a name="l00149"></a>00149 <span class="keywordtype">int</span> use_glx_window;
<a name="l00150"></a>00150 GLXWindow window;
<a name="l00151"></a>00151 } _glxwin;
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="keyword">static</span> void (*old_window_redrawer)(int, int, int, int);
<a name="l00154"></a>00154 <span class="keyword">extern</span> void (*_xwin_window_redrawer)(int, int, int, int);
<a name="l00155"></a>00155 <span class="keyword">static</span> int (*old_x_error_handler)(Display*, XErrorEvent*);
<a name="l00156"></a>00156
<a name="l00157"></a>00157
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="comment">/* allegro_gl_redraw_window :</span>
<a name="l00160"></a>00160 <span class="comment"> * Redraws the window when an Expose event is processed</span>
<a name="l00161"></a>00161 <span class="comment"> * Important note : no GL commands should be processed in this function</span>
<a name="l00162"></a>00162 <span class="comment"> * since it may be called by a thread which is different from the main thread.</span>
<a name="l00163"></a>00163 <span class="comment"> * In order to be able to process GL commands, we should create another context</span>
<a name="l00164"></a>00164 <span class="comment"> * and make it current to the other thread. IMHO it would be overkill.</span>
<a name="l00165"></a>00165 <span class="comment"> */</span>
<a name="l00166"></a>00166 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_redraw_window(<span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h)
<a name="l00167"></a>00167 {
<a name="l00168"></a>00168 <span class="comment">/* Does nothing */</span>
<a name="l00169"></a>00169 <span class="keywordflow">return</span>;
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171
<a name="l00172"></a>00172
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="preprocessor">#ifdef ALLEGRO_XWINDOWS_WITH_XCURSOR</span>
<a name="l00175"></a>00175 <span class="preprocessor"></span><span class="comment">/* _xwin_hide_x_mouse:</span>
<a name="l00176"></a>00176 <span class="comment"> * Create invisible X cursor</span>
<a name="l00177"></a>00177 <span class="comment"> */</span>
<a name="l00178"></a>00178 <span class="keyword">static</span> <span class="keywordtype">void</span> _xwin_hide_x_mouse(<span class="keywordtype">void</span>)
<a name="l00179"></a>00179 {
<a name="l00180"></a>00180 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> gcmask;
<a name="l00181"></a>00181 XGCValues gcvalues;
<a name="l00182"></a>00182 Pixmap pixmap;
<a name="l00183"></a>00183
<a name="l00184"></a>00184 XUndefineCursor(_xwin.display, _xwin.window);
<a name="l00185"></a>00185
<a name="l00186"></a>00186 <span class="keywordflow">if</span> (_xwin.cursor != None) {
<a name="l00187"></a>00187 XFreeCursor(_xwin.display, _xwin.cursor);
<a name="l00188"></a>00188 _xwin.cursor = None;
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="keywordflow">if</span> (_xwin.xcursor_image != None) {
<a name="l00192"></a>00192 XcursorImageDestroy(_xwin.xcursor_image);
<a name="l00193"></a>00193 _xwin.xcursor_image = None;
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a>00196 pixmap = XCreatePixmap(_xwin.display, _xwin.window, 1, 1, 1);
<a name="l00197"></a>00197 <span class="keywordflow">if</span> (pixmap != None) {
<a name="l00198"></a>00198 GC temp_gc;
<a name="l00199"></a>00199 XColor color;
<a name="l00200"></a>00200
<a name="l00201"></a>00201 gcmask = GCFunction | GCForeground | GCBackground;
<a name="l00202"></a>00202 gcvalues.function = GXcopy;
<a name="l00203"></a>00203 gcvalues.foreground = 0;
<a name="l00204"></a>00204 gcvalues.background = 0;
<a name="l00205"></a>00205 temp_gc = XCreateGC(_xwin.display, pixmap, gcmask, &gcvalues);
<a name="l00206"></a>00206 XDrawPoint(_xwin.display, pixmap, temp_gc, 0, 0);
<a name="l00207"></a>00207 XFreeGC(_xwin.display, temp_gc);
<a name="l00208"></a>00208 color.pixel = 0;
<a name="l00209"></a>00209 color.red = color.green = color.blue = 0;
<a name="l00210"></a>00210 color.flags = DoRed | DoGreen | DoBlue;
<a name="l00211"></a>00211 _xwin.cursor = XCreatePixmapCursor(_xwin.display, pixmap, pixmap, &color, &color, 0, 0);
<a name="l00212"></a>00212 XDefineCursor(_xwin.display, _xwin.window, _xwin.cursor);
<a name="l00213"></a>00213 XFreePixmap(_xwin.display, pixmap);
<a name="l00214"></a>00214 }
<a name="l00215"></a>00215 <span class="keywordflow">else</span> {
<a name="l00216"></a>00216 _xwin.cursor = XCreateFontCursor(_xwin.display, _xwin.cursor_shape);
<a name="l00217"></a>00217 XDefineCursor(_xwin.display, _xwin.window, _xwin.cursor);
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220 <span class="preprocessor">#endif</span>
<a name="l00221"></a>00221 <span class="preprocessor"></span>
<a name="l00222"></a>00222
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <span class="comment">/* hide_mouse:</span>
<a name="l00225"></a>00225 <span class="comment"> * Hide the custom X cursor (if supported)</span>
<a name="l00226"></a>00226 <span class="comment"> */</span>
<a name="l00227"></a>00227 <span class="keyword">static</span> <span class="keywordtype">void</span> hide_mouse(<span class="keywordtype">void</span>)
<a name="l00228"></a>00228 {
<a name="l00229"></a>00229 <span class="preprocessor"> #ifdef ALLEGRO_XWINDOWS_WITH_XCURSOR</span>
<a name="l00230"></a>00230 <span class="preprocessor"></span> <span class="keywordflow">if</span> (_xwin.support_argb_cursor) {
<a name="l00231"></a>00231 XLOCK();
<a name="l00232"></a>00232 _xwin_hide_x_mouse();
<a name="l00233"></a>00233 XUNLOCK();
<a name="l00234"></a>00234 }
<a name="l00235"></a>00235 <span class="preprocessor"> #endif</span>
<a name="l00236"></a>00236 <span class="preprocessor"></span> <span class="keywordflow">return</span>;
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00239"></a>00239
<a name="l00240"></a>00240
<a name="l00241"></a>00241 <span class="comment">/* If Allegro's X11 mouse driver enabled hw cursors, we shouldn't use</span>
<a name="l00242"></a>00242 <span class="comment"> * allegro_gl_hide_mouse();</span>
<a name="l00243"></a>00243 <span class="comment"> */</span>
<a name="l00244"></a>00244 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_hide_mouse(<span class="keywordtype">void</span>)
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (_xwin.hw_cursor_ok) {
<a name="l00247"></a>00247 hide_mouse();
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249 <span class="keywordflow">else</span> {
<a name="l00250"></a>00250 allegro_gl_hide_mouse();
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252 }
<a name="l00253"></a>00253
<a name="l00254"></a>00254
<a name="l00255"></a>00255
<a name="l00256"></a>00256 <span class="comment">/* allegro_gl_x_windowed_init:</span>
<a name="l00257"></a>00257 <span class="comment"> * Creates screen bitmap.</span>
<a name="l00258"></a>00258 <span class="comment"> */</span>
<a name="l00259"></a>00259 <span class="keyword">static</span> BITMAP *allegro_gl_x_create_screen(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00260"></a>00260 <span class="keywordtype">int</span> depth, <span class="keywordtype">int</span> fullscreen)
<a name="l00261"></a>00261 {
<a name="l00262"></a>00262 <span class="keywordtype">int</span> _keyboard_was_installed = FALSE;
<a name="l00263"></a>00263 <span class="keywordtype">int</span> _mouse_was_installed = FALSE;
<a name="l00264"></a>00264 <span class="keywordtype">int</span> create_window_ret;
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="comment">/* test if Allegro have pthread support enabled */</span>
<a name="l00267"></a>00267 <span class="keywordflow">if</span> (!_unix_bg_man->multi_threaded) {
<a name="l00268"></a>00268 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l00269"></a>00269 get_config_text(<span class="stringliteral">"Fatal Error : pthread support is not enabled"</span>));
<a name="l00270"></a>00270 <span class="keywordflow">return</span> NULL;
<a name="l00271"></a>00271 }
<a name="l00272"></a>00272
<a name="l00273"></a>00273 <span class="keywordflow">if</span> (keyboard_driver) {
<a name="l00274"></a>00274 _keyboard_was_installed = TRUE;
<a name="l00275"></a>00275 remove_keyboard();
<a name="l00276"></a>00276 TRACE(PREFIX_I <span class="stringliteral">"x_create_screen: Removing Keyboard...\n"</span>);
<a name="l00277"></a>00277 }
<a name="l00278"></a>00278
<a name="l00279"></a>00279 <span class="keywordflow">if</span> (mouse_driver) {
<a name="l00280"></a>00280 _mouse_was_installed = TRUE;
<a name="l00281"></a>00281 remove_mouse();
<a name="l00282"></a>00282 TRACE(PREFIX_I <span class="stringliteral">"x_create_screen: Removing Mouse...\n"</span>);
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284
<a name="l00285"></a>00285 XLOCK();
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="keywordflow">if</span> (!glXQueryExtension(_xwin.display, &_glxwin.error_base,
<a name="l00288"></a>00288 &_glxwin.event_base)) {
<a name="l00289"></a>00289
<a name="l00290"></a>00290 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00291"></a>00291 get_config_text(<span class="stringliteral">"GLX Extension not supported by display"</span>));
<a name="l00292"></a>00292 XUNLOCK();
<a name="l00293"></a>00293 <span class="keywordflow">goto</span> failure;
<a name="l00294"></a>00294 }
<a name="l00295"></a>00295
<a name="l00296"></a>00296 sscanf(glXQueryServerString(_xwin.display, _xwin.screen, GLX_VERSION),
<a name="l00297"></a>00297 <span class="stringliteral">"%i.%i"</span>, &_glxwin.major, &_glxwin.minor);
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="keywordflow">if</span> ((w == 0) && (h == 0)) {
<a name="l00300"></a>00300 w = 640;
<a name="l00301"></a>00301 h = 480;
<a name="l00302"></a>00302 }
<a name="l00303"></a>00303
<a name="l00304"></a>00304 <span class="keywordflow">if</span> ((vw > w) || (vh > h)) {
<a name="l00305"></a>00305 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00306"></a>00306 get_config_text (<span class="stringliteral">"OpenGL drivers do not support virtual screens"</span>));
<a name="l00307"></a>00307 XUNLOCK();
<a name="l00308"></a>00308 <span class="keywordflow">goto</span> failure;
<a name="l00309"></a>00309 }
<a name="l00310"></a>00310
<a name="l00311"></a>00311 allegro_gl_display_info.w = w;
<a name="l00312"></a>00312 allegro_gl_display_info.h = h;
<a name="l00313"></a>00313
<a name="l00314"></a>00314 old_window_redrawer = _xwin_window_redrawer;
<a name="l00315"></a>00315 _xwin_window_redrawer = allegro_gl_redraw_window;
<a name="l00316"></a>00316 _glxwin.fullscreen = FALSE;
<a name="l00317"></a>00317 _glxwin.use_glx_window = FALSE;
<a name="l00318"></a>00318
<a name="l00319"></a>00319 create_window_ret = allegro_gl_x_create_window(fullscreen);
<a name="l00320"></a>00320 <span class="keywordflow">if</span> (create_window_ret) {
<a name="l00321"></a>00321 <span class="keywordflow">if</span> (fullscreen && create_window_ret == -2) {
<a name="l00322"></a>00322 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00323"></a>00323 get_config_text (<span class="stringliteral">"Unable to switch in GLX fullscreen"</span>));
<a name="l00324"></a>00324 }
<a name="l00325"></a>00325 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (create_window_ret == -2) {
<a name="l00326"></a>00326 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00327"></a>00327 get_config_text (<span class="stringliteral">"Unable to create GLX window"</span>));
<a name="l00328"></a>00328 }
<a name="l00329"></a>00329 XUNLOCK();
<a name="l00330"></a>00330 allegro_gl_x_exit(NULL);
<a name="l00331"></a>00331 <span class="keywordflow">goto</span> failure;
<a name="l00332"></a>00332 }
<a name="l00333"></a>00333
<a name="l00334"></a>00334 <span class="comment">/* If pixel format is Allegro compatible, set up Allegro correctly. */</span>
<a name="l00335"></a>00335 set_color_depth(allegro_gl_display_info.colour_depth);
<a name="l00336"></a>00336
<a name="l00337"></a>00337 <span class="comment">/* XXX <rohannessian> X can run on Big-Endian systems. We need to </span>
<a name="l00338"></a>00338 <span class="comment"> * make a check for that and pass TRUE to</span>
<a name="l00339"></a>00339 <span class="comment"> * __allegro_gl_set_allegro_image_format() in that case.</span>
<a name="l00340"></a>00340 <span class="comment"> */</span>
<a name="l00341"></a>00341 __allegro_gl_set_allegro_image_format(FALSE);
<a name="l00342"></a>00342
<a name="l00343"></a>00343 <span class="keywordflow">if</span> (fullscreen) {
<a name="l00344"></a>00344 <a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a> =
<a name="l00345"></a>00345 allegro_gl_x_windowed_create_screen (&gfx_allegro_gl_fullscreen,
<a name="l00346"></a>00346 allegro_gl_display_info.w, allegro_gl_display_info.h,
<a name="l00347"></a>00347 _color_depth);
<a name="l00348"></a>00348 }
<a name="l00349"></a>00349 <span class="keywordflow">else</span> {
<a name="l00350"></a>00350 <a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a> =
<a name="l00351"></a>00351 allegro_gl_x_windowed_create_screen (&gfx_allegro_gl_windowed,
<a name="l00352"></a>00352 allegro_gl_display_info.w, allegro_gl_display_info.h,
<a name="l00353"></a>00353 _color_depth);
<a name="l00354"></a>00354 }
<a name="l00355"></a>00355
<a name="l00356"></a>00356 <span class="keywordflow">if</span> (!<a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a>) {
<a name="l00357"></a>00357 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00358"></a>00358 get_config_text (<span class="stringliteral">"Error creating screen bitmap"</span>));
<a name="l00359"></a>00359 XUNLOCK();
<a name="l00360"></a>00360 allegro_gl_x_exit(NULL);
<a name="l00361"></a>00361 <span class="keywordflow">goto</span> failure;
<a name="l00362"></a>00362 }
<a name="l00363"></a>00363
<a name="l00364"></a>00364 __allegro_gl_valid_context = TRUE;
<a name="l00365"></a>00365 __allegro_gl_driver = &allegro_gl_x;
<a name="l00366"></a>00366
<a name="l00367"></a>00367 <span class="comment">/* Print out OpenGL version info */</span>
<a name="l00368"></a>00368 TRACE(PREFIX_I <span class="stringliteral">"OpenGL Version: %s\n"</span>, (AL_CONST <span class="keywordtype">char</span>*)glGetString(GL_VERSION));
<a name="l00369"></a>00369 TRACE(PREFIX_I <span class="stringliteral">"OpenGL Vendor: %s\n"</span>, (AL_CONST <span class="keywordtype">char</span>*)glGetString(GL_VENDOR));
<a name="l00370"></a>00370 TRACE(PREFIX_I <span class="stringliteral">"OpenGL Renderer: %s\n"</span>, (AL_CONST <span class="keywordtype">char</span>*)glGetString(GL_RENDERER));
<a name="l00371"></a>00371
<a name="l00372"></a>00372 <span class="comment">/* Detect if the GL driver is based on Mesa */</span>
<a name="l00373"></a>00373 allegro_gl_info.is_mesa_driver = FALSE;
<a name="l00374"></a>00374 <span class="keywordflow">if</span> (strstr((AL_CONST <span class="keywordtype">char</span>*)glGetString(GL_VERSION),<span class="stringliteral">"Mesa"</span>)) {
<a name="l00375"></a>00375 AGL_LOG(1, <span class="stringliteral">"OpenGL driver based on Mesa\n"</span>);
<a name="l00376"></a>00376 allegro_gl_info.is_mesa_driver = TRUE;
<a name="l00377"></a>00377 }
<a name="l00378"></a>00378
<a name="l00379"></a>00379 <span class="comment">/* Print out GLX version info */</span>
<a name="l00380"></a>00380 TRACE(PREFIX_I <span class="stringliteral">"GLX Version: %d.%d\n"</span>, _glxwin.major, _glxwin.minor);
<a name="l00381"></a>00381
<a name="l00382"></a>00382 <span class="preprocessor">#ifdef LOGLEVEL</span>
<a name="l00383"></a>00383 <span class="preprocessor"></span> <span class="keywordflow">if</span> (glXIsDirect(_xwin.display, _glxwin.ctx)) {
<a name="l00384"></a>00384 AGL_LOG(1, <span class="stringliteral">"GLX Direct Rendering is enabled\n"</span>);
<a name="l00385"></a>00385 }
<a name="l00386"></a>00386 <span class="keywordflow">else</span> {
<a name="l00387"></a>00387 AGL_LOG(1, <span class="stringliteral">"GLX Direct Rendering is disabled\n"</span>);
<a name="l00388"></a>00388 }
<a name="l00389"></a>00389 <span class="preprocessor">#endif</span>
<a name="l00390"></a>00390 <span class="preprocessor"></span>
<a name="l00391"></a>00391 <span class="comment">/* Prints out GLX extensions info */</span>
<a name="l00392"></a>00392 AGL_LOG(1, <span class="stringliteral">"glX Extensions:\n"</span>);
<a name="l00393"></a>00393 <span class="preprocessor">#ifdef LOGLEVEL</span>
<a name="l00394"></a>00394 <span class="preprocessor"></span> __allegro_gl_print_extensions(
<a name="l00395"></a>00395 (AL_CONST <span class="keywordtype">char</span>*)glXQueryExtensionsString(_xwin.display, _xwin.screen));
<a name="l00396"></a>00396 <span class="preprocessor">#endif</span>
<a name="l00397"></a>00397 <span class="preprocessor"></span> <span class="comment">/* Prints out OpenGL extensions info and activates needed extensions */</span>
<a name="l00398"></a>00398 __allegro_gl_manage_extensions();
<a name="l00399"></a>00399
<a name="l00400"></a>00400 <span class="comment">/* Update screen vtable in order to use AGL's */</span>
<a name="l00401"></a>00401 __allegro_gl__glvtable_update_vtable (&<a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a>->vtable);
<a name="l00402"></a>00402 memcpy(&_screen_vtable, <a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a>->vtable, <span class="keyword">sizeof</span>(GFX_VTABLE));
<a name="l00403"></a>00403 <a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a>->vtable = &_screen_vtable;
<a name="l00404"></a>00404
<a name="l00405"></a>00405 XUNLOCK();
<a name="l00406"></a>00406
<a name="l00407"></a>00407 <span class="keywordflow">if</span> (_keyboard_was_installed) {
<a name="l00408"></a>00408 TRACE(PREFIX_I <span class="stringliteral">"x_create_screen: Installing Keyboard...\n"</span>);
<a name="l00409"></a>00409 install_keyboard();
<a name="l00410"></a>00410 }
<a name="l00411"></a>00411
<a name="l00412"></a>00412 <span class="keywordflow">if</span> (_mouse_was_installed) {
<a name="l00413"></a>00413 TRACE(PREFIX_I <span class="stringliteral">"x_create_screen: Installing Mouse...\n"</span>);
<a name="l00414"></a>00414 install_mouse();
<a name="l00415"></a>00415 }
<a name="l00416"></a>00416 gfx_capabilities |= GFX_HW_CURSOR;
<a name="l00417"></a>00417
<a name="l00418"></a>00418 <span class="keywordflow">return</span> <a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a>;
<a name="l00419"></a>00419
<a name="l00420"></a>00420 failure:
<a name="l00421"></a>00421 <span class="keywordflow">if</span> (_keyboard_was_installed) {
<a name="l00422"></a>00422 install_keyboard();
<a name="l00423"></a>00423 }
<a name="l00424"></a>00424
<a name="l00425"></a>00425 <span class="keywordflow">if</span> (_mouse_was_installed) {
<a name="l00426"></a>00426 install_mouse();
<a name="l00427"></a>00427 }
<a name="l00428"></a>00428
<a name="l00429"></a>00429 <span class="keywordflow">return</span> NULL;
<a name="l00430"></a>00430 }
<a name="l00431"></a>00431
<a name="l00432"></a>00432
<a name="l00433"></a>00433
<a name="l00434"></a>00434 <span class="comment">/* allegro_gl_x_windowed_init:</span>
<a name="l00435"></a>00435 <span class="comment"> * Creates screen bitmap for windowed driver.</span>
<a name="l00436"></a>00436 <span class="comment"> */</span>
<a name="l00437"></a>00437 <span class="keyword">static</span> BITMAP *allegro_gl_x_windowed_init(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00438"></a>00438 <span class="keywordtype">int</span> depth)
<a name="l00439"></a>00439 {
<a name="l00440"></a>00440 <span class="keywordflow">return</span> allegro_gl_x_create_screen(w, h, vw, vh, depth, FALSE);
<a name="l00441"></a>00441 }
<a name="l00442"></a>00442
<a name="l00443"></a>00443
<a name="l00444"></a>00444
<a name="l00445"></a>00445 <span class="comment">/* allegro_gl_x_fullscreen_init:</span>
<a name="l00446"></a>00446 <span class="comment"> * Creates screen bitmap for fullscreen driver.</span>
<a name="l00447"></a>00447 <span class="comment"> */</span>
<a name="l00448"></a>00448 <span class="keyword">static</span> BITMAP *allegro_gl_x_fullscreen_init(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00449"></a>00449 <span class="keywordtype">int</span> depth)
<a name="l00450"></a>00450 {
<a name="l00451"></a>00451 <span class="keywordflow">return</span> allegro_gl_x_create_screen(w, h, vw, vh, depth, TRUE);
<a name="l00452"></a>00452 }
<a name="l00453"></a>00453
<a name="l00454"></a>00454
<a name="l00455"></a>00455
<a name="l00456"></a>00456 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00457"></a>00457 <span class="preprocessor"></span><span class="comment">/* free_modelines:</span>
<a name="l00458"></a>00458 <span class="comment"> * Free mode lines.</span>
<a name="l00459"></a>00459 <span class="comment"> */</span>
<a name="l00460"></a>00460 <span class="keyword">static</span> <span class="keywordtype">void</span> free_modelines(XF86VidModeModeInfo **modesinfo, <span class="keywordtype">int</span> num_modes)
<a name="l00461"></a>00461 {
<a name="l00462"></a>00462 <span class="keywordtype">int</span> i;
<a name="l00463"></a>00463
<a name="l00464"></a>00464 <span class="keywordflow">for</span> (i = 0; i < num_modes; i++)
<a name="l00465"></a>00465 <span class="keywordflow">if</span> (modesinfo[i]->privsize > 0)
<a name="l00466"></a>00466 XFree(modesinfo[i]-><span class="keyword">private</span>);
<a name="l00467"></a>00467 XFree(modesinfo);
<a name="l00468"></a>00468 }
<a name="l00469"></a>00469 <span class="preprocessor">#endif</span>
<a name="l00470"></a>00470 <span class="preprocessor"></span>
<a name="l00471"></a>00471
<a name="l00472"></a>00472
<a name="l00473"></a>00473 <span class="comment">/* allegro_gl_x_exit:</span>
<a name="l00474"></a>00474 <span class="comment"> * Shuts down the driver (shared between windowed and full-screen)</span>
<a name="l00475"></a>00475 <span class="comment"> */</span>
<a name="l00476"></a>00476 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_exit(BITMAP *bmp)
<a name="l00477"></a>00477 {
<a name="l00478"></a>00478 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00479"></a>00479 <span class="preprocessor"></span> XSetWindowAttributes setattr;
<a name="l00480"></a>00480 <span class="preprocessor">#endif</span>
<a name="l00481"></a>00481 <span class="preprocessor"></span>
<a name="l00482"></a>00482 XLOCK();
<a name="l00483"></a>00483 <span class="comment">/* We politely wait for OpenGL to finish its current operations before</span>
<a name="l00484"></a>00484 <span class="comment"> shutting down the driver */</span>
<a name="l00485"></a>00485 glXWaitGL();
<a name="l00486"></a>00486
<a name="l00487"></a>00487 __allegro_gl_unmanage_extensions();
<a name="l00488"></a>00488
<a name="l00489"></a>00489 <span class="keywordflow">if</span> (_glxwin.ctx) {
<a name="l00490"></a>00490 <span class="keywordflow">if</span> (!allegro_gl_info.is_ati_r200_chip) {
<a name="l00491"></a>00491 <span class="comment">/* The DRI drivers for ATI cards with R200 chip</span>
<a name="l00492"></a>00492 <span class="comment"> * seem to be broken since they crash at this point.</span>
<a name="l00493"></a>00493 <span class="comment"> * As a workaround AGL does not release the GLX context</span>
<a name="l00494"></a>00494 <span class="comment"> * here. This should not hurt since the GLX specs don't</span>
<a name="l00495"></a>00495 <span class="comment"> * require the context to be released before the program</span>
<a name="l00496"></a>00496 <span class="comment"> * ends or before another context is made current to the</span>
<a name="l00497"></a>00497 <span class="comment"> * thread.</span>
<a name="l00498"></a>00498 <span class="comment"> */</span>
<a name="l00499"></a>00499 <span class="keywordflow">if</span> (!glXMakeCurrent(_xwin.display, None, NULL)) {
<a name="l00500"></a>00500 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00501"></a>00501 get_config_text (<span class="stringliteral">"Could not release drawing context.\n"</span>));
<a name="l00502"></a>00502 }
<a name="l00503"></a>00503 }
<a name="l00504"></a>00504
<a name="l00505"></a>00505 glXDestroyContext(_xwin.display, _glxwin.ctx);
<a name="l00506"></a>00506 _glxwin.ctx = NULL;
<a name="l00507"></a>00507 }
<a name="l00508"></a>00508
<a name="l00509"></a>00509 <span class="keywordflow">if</span> (_xwin.mouse_grabbed) {
<a name="l00510"></a>00510 XUngrabPointer(_xwin.display, CurrentTime);
<a name="l00511"></a>00511 _xwin.mouse_grabbed = 0;
<a name="l00512"></a>00512 }
<a name="l00513"></a>00513
<a name="l00514"></a>00514 <span class="keywordflow">if</span> (_xwin.keyboard_grabbed) {
<a name="l00515"></a>00515 XUngrabKeyboard(_xwin.display, CurrentTime);
<a name="l00516"></a>00516 _xwin.keyboard_grabbed = 0;
<a name="l00517"></a>00517 }
<a name="l00518"></a>00518
<a name="l00519"></a>00519 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00520"></a>00520 <span class="preprocessor"></span> <span class="keywordflow">if</span> (_glxwin.fullscreen) {
<a name="l00521"></a>00521 <span class="keywordflow">if</span> (_xwin.mode_switched) {
<a name="l00522"></a>00522 XF86VidModeLockModeSwitch(_xwin.display, _xwin.screen, False);
<a name="l00523"></a>00523 XF86VidModeSwitchToMode(_xwin.display, _xwin.screen,
<a name="l00524"></a>00524 _xwin.modesinfo[0]);
<a name="l00525"></a>00525 XF86VidModeSetViewPort(_xwin.display, _xwin.screen, 0, 0);
<a name="l00526"></a>00526 _xwin.mode_switched = 0;
<a name="l00527"></a>00527 }
<a name="l00528"></a>00528 <span class="keywordflow">if</span> (_xwin.override_redirected) {
<a name="l00529"></a>00529 setattr.override_redirect = False;
<a name="l00530"></a>00530 XChangeWindowAttributes(_xwin.display, _xwin.window,
<a name="l00531"></a>00531 CWOverrideRedirect, &setattr);
<a name="l00532"></a>00532 _xwin.override_redirected = 0;
<a name="l00533"></a>00533 }
<a name="l00534"></a>00534
<a name="l00535"></a>00535 <span class="comment">/* Free modelines. */</span>
<a name="l00536"></a>00536 free_modelines(_xwin.modesinfo, _xwin.num_modes);
<a name="l00537"></a>00537 _xwin.num_modes = 0;
<a name="l00538"></a>00538 _xwin.modesinfo = NULL;
<a name="l00539"></a>00539 }
<a name="l00540"></a>00540 <span class="preprocessor">#endif</span>
<a name="l00541"></a>00541 <span class="preprocessor"></span>
<a name="l00542"></a>00542 <span class="comment">/* Note: Allegro will destroy screen (== allegro_gl_screen),</span>
<a name="l00543"></a>00543 <span class="comment"> * so don't destroy it here.</span>
<a name="l00544"></a>00544 <span class="comment"> */</span>
<a name="l00545"></a>00545 <span class="comment">//destroy_bitmap(allegro_gl_screen);</span>
<a name="l00546"></a>00546 ASSERT(<a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a> == screen);
<a name="l00547"></a>00547 <a class="code" href="alleggl_8c.html#a84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen&#39; bitmap.">allegro_gl_screen</a> = NULL;
<a name="l00548"></a>00548
<a name="l00549"></a>00549 <span class="comment">/* Unmap the window in order not to see the cursor when quitting.</span>
<a name="l00550"></a>00550 <span class="comment"> The window *must not* be destroyed and _xwin.visual must be left</span>
<a name="l00551"></a>00551 <span class="comment"> to its current value otherwise the program will crash when exiting */</span>
<a name="l00552"></a>00552 <span class="keywordflow">if</span> (_xwin.window != None)
<a name="l00553"></a>00553 XUnmapWindow(_xwin.display, _xwin.window);
<a name="l00554"></a>00554
<a name="l00555"></a>00555 <span class="keywordflow">if</span> (_glxwin.use_glx_window) {
<a name="l00556"></a>00556 glXDestroyWindow(_xwin.display, _glxwin.window);
<a name="l00557"></a>00557 _glxwin.window = 0;
<a name="l00558"></a>00558 _glxwin.use_glx_window = FALSE;
<a name="l00559"></a>00559 }
<a name="l00560"></a>00560
<a name="l00561"></a>00561 __allegro_gl_valid_context = FALSE;
<a name="l00562"></a>00562
<a name="l00563"></a>00563 _xwin_window_redrawer = old_window_redrawer;
<a name="l00564"></a>00564 XSetErrorHandler(old_x_error_handler);
<a name="l00565"></a>00565
<a name="l00566"></a>00566
<a name="l00567"></a>00567 <span class="preprocessor">#if GET_ALLEGRO_VERSION() >= MAKE_VER(4, 2, 1)</span>
<a name="l00568"></a>00568 <span class="preprocessor"></span> <span class="comment">/* Hack: Allegro 4.2.1 uses a persistent window, we need to restore it. */</span>
<a name="l00569"></a>00569 <span class="keywordflow">if</span> (backup_allegro_window != None) {
<a name="l00570"></a>00570 <span class="keywordflow">if</span> (_xwin.colormap != None) {
<a name="l00571"></a>00571 XUninstallColormap(_xwin.display, _xwin.colormap);
<a name="l00572"></a>00572 XFreeColormap(_xwin.display, _xwin.colormap);
<a name="l00573"></a>00573 }
<a name="l00574"></a>00574 _xwin.colormap = backup_allegro_colormap;
<a name="l00575"></a>00575
<a name="l00576"></a>00576 <span class="keywordflow">if</span> (_xwin.window != None)
<a name="l00577"></a>00577 XDestroyWindow(_xwin.display, _xwin.window);
<a name="l00578"></a>00578 _xwin.window = backup_allegro_window;
<a name="l00579"></a>00579 backup_allegro_window = None;
<a name="l00580"></a>00580 XMapWindow(_xwin.display, _xwin.window);
<a name="l00581"></a>00581 }
<a name="l00582"></a>00582 <span class="preprocessor">#endif</span>
<a name="l00583"></a>00583 <span class="preprocessor"></span>
<a name="l00584"></a>00584 XUNLOCK();
<a name="l00585"></a>00585 }
<a name="l00586"></a>00586
<a name="l00587"></a>00587
<a name="l00588"></a>00588
<a name="l00589"></a>00589 <span class="comment">/* get_shift:</span>
<a name="l00590"></a>00590 <span class="comment"> * Returns the shift value for a given mask.</span>
<a name="l00591"></a>00591 <span class="comment"> */</span>
<a name="l00592"></a>00592 <span class="keyword">static</span> <span class="keywordtype">int</span> get_shift (<span class="keywordtype">int</span> mask)
<a name="l00593"></a>00593 {
<a name="l00594"></a>00594 <span class="keywordtype">int</span> i = 0, j = 1;
<a name="l00595"></a>00595 <span class="keywordflow">if</span> (!mask) <span class="keywordflow">return</span> -1;
<a name="l00596"></a>00596 <span class="keywordflow">while</span> (!(j & mask)) {
<a name="l00597"></a>00597 i++;
<a name="l00598"></a>00598 j <<= 1;
<a name="l00599"></a>00599 }
<a name="l00600"></a>00600 <span class="keywordflow">return</span> i;
<a name="l00601"></a>00601 }
<a name="l00602"></a>00602
<a name="l00603"></a>00603
<a name="l00604"></a>00604
<a name="l00605"></a>00605 <span class="keyword">static</span> <span class="keywordtype">int</span> decode_fbconfig (GLXFBConfig fbc, <span class="keyword">struct</span> allegro_gl_display_info *i) {
<a name="l00606"></a>00606 <span class="keywordtype">int</span> render_type, visual_type, buffer_size, sbuffers, samples;
<a name="l00607"></a>00607 <span class="keywordtype">int</span> drawable_type, renderable;
<a name="l00608"></a>00608 XVisualInfo *v;
<a name="l00609"></a>00609
<a name="l00610"></a>00610 TRACE(PREFIX_I <span class="stringliteral">"decode_fbconfig: Decoding:\n"</span>);
<a name="l00611"></a>00611 i->rmethod = 2;
<a name="l00612"></a>00612
<a name="l00613"></a>00613 <span class="keywordflow">if</span> (glXGetFBConfigAttrib (_xwin.display, fbc, GLX_RENDER_TYPE,
<a name="l00614"></a>00614 &render_type)
<a name="l00615"></a>00615 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_X_RENDERABLE,
<a name="l00616"></a>00616 &renderable)
<a name="l00617"></a>00617 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_DRAWABLE_TYPE,
<a name="l00618"></a>00618 &drawable_type)
<a name="l00619"></a>00619 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_X_VISUAL_TYPE,
<a name="l00620"></a>00620 &visual_type)
<a name="l00621"></a>00621 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_BUFFER_SIZE,
<a name="l00622"></a>00622 &buffer_size)
<a name="l00623"></a>00623 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_DEPTH_SIZE,
<a name="l00624"></a>00624 &i->depth_size)
<a name="l00625"></a>00625 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_STEREO,
<a name="l00626"></a>00626 &i->stereo)
<a name="l00627"></a>00627 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_RED_SIZE,
<a name="l00628"></a>00628 &i->pixel_size.rgba.r)
<a name="l00629"></a>00629 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_GREEN_SIZE,
<a name="l00630"></a>00630 &i->pixel_size.rgba.g)
<a name="l00631"></a>00631 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_BLUE_SIZE,
<a name="l00632"></a>00632 &i->pixel_size.rgba.b)
<a name="l00633"></a>00633 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ALPHA_SIZE,
<a name="l00634"></a>00634 &i->pixel_size.rgba.a)
<a name="l00635"></a>00635 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_DOUBLEBUFFER,
<a name="l00636"></a>00636 &i->doublebuffered)
<a name="l00637"></a>00637 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_AUX_BUFFERS,
<a name="l00638"></a>00638 &i->aux_buffers)
<a name="l00639"></a>00639 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_STENCIL_SIZE,
<a name="l00640"></a>00640 &i->stencil_size)
<a name="l00641"></a>00641 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ACCUM_RED_SIZE,
<a name="l00642"></a>00642 &i->accum_size.rgba.r)
<a name="l00643"></a>00643 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ACCUM_GREEN_SIZE,
<a name="l00644"></a>00644 &i->accum_size.rgba.g)
<a name="l00645"></a>00645 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ACCUM_BLUE_SIZE,
<a name="l00646"></a>00646 &i->accum_size.rgba.b)
<a name="l00647"></a>00647 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ACCUM_ALPHA_SIZE,
<a name="l00648"></a>00648 &i->accum_size.rgba.a)) {
<a name="l00649"></a>00649 TRACE(PREFIX_I <span class="stringliteral">"decode_fbconfig: Incomplete glX mode ...\n"</span>);
<a name="l00650"></a>00650 <span class="keywordflow">return</span> -1;
<a name="l00651"></a>00651 }
<a name="l00652"></a>00652
<a name="l00653"></a>00653 <span class="keywordflow">if</span> (!(render_type & GLX_RGBA_BIT) && !(render_type & GLX_RGBA_FLOAT_BIT)) {
<a name="l00654"></a>00654 TRACE(PREFIX_I <span class="stringliteral">"decode_fbconfig: Not RGBA mode\n"</span>);
<a name="l00655"></a>00655 <span class="keywordflow">return</span> -1;
<a name="l00656"></a>00656 }
<a name="l00657"></a>00657
<a name="l00658"></a>00658 <span class="keywordflow">if</span> (!(drawable_type & GLX_WINDOW_BIT)) {
<a name="l00659"></a>00659 TRACE(PREFIX_I <span class="stringliteral">"decode_fbconfig: Cannot render to a window.\n"</span>);
<a name="l00660"></a>00660 <span class="keywordflow">return</span> -1;
<a name="l00661"></a>00661 }
<a name="l00662"></a>00662
<a name="l00663"></a>00663 <span class="keywordflow">if</span> (renderable == False) {
<a name="l00664"></a>00664 TRACE(PREFIX_I <span class="stringliteral">"decode_fbconfig: GLX windows not supported.\n"</span>);
<a name="l00665"></a>00665 <span class="keywordflow">return</span> -1;
<a name="l00666"></a>00666 }
<a name="l00667"></a>00667
<a name="l00668"></a>00668 <span class="keywordflow">if</span> (visual_type != GLX_TRUE_COLOR && visual_type != GLX_DIRECT_COLOR) {
<a name="l00669"></a>00669 TRACE(PREFIX_I <span class="stringliteral">"decode_fbconfig: visual type other than TrueColor and "</span>
<a name="l00670"></a>00670 <span class="stringliteral">"DirectColor.\n"</span>);
<a name="l00671"></a>00671 <span class="keywordflow">return</span> -1;
<a name="l00672"></a>00672 }
<a name="l00673"></a>00673
<a name="l00674"></a>00674 <span class="comment">/* Floating-point depth is not supported as glx extension (yet). */</span>
<a name="l00675"></a>00675 i->float_depth = 0;
<a name="l00676"></a>00676
<a name="l00677"></a>00677 i->float_color = (render_type & GLX_RGBA_FLOAT_BIT);
<a name="l00678"></a>00678
<a name="l00679"></a>00679 v = glXGetVisualFromFBConfig(_xwin.display, fbc);
<a name="l00680"></a>00680 <span class="keywordflow">if</span> (!v) {
<a name="l00681"></a>00681 TRACE(PREFIX_I <span class="stringliteral">"decode_fbconfig: Cannot get associated visual for the "</span>
<a name="l00682"></a>00682 <span class="stringliteral">"FBConfig.\n"</span>);
<a name="l00683"></a>00683 <span class="keywordflow">return</span> -1;
<a name="l00684"></a>00684 }
<a name="l00685"></a>00685 i->r_shift = get_shift (v->red_mask);
<a name="l00686"></a>00686 i->g_shift = get_shift (v->green_mask);
<a name="l00687"></a>00687 i->b_shift = get_shift (v->blue_mask);
<a name="l00688"></a>00688 i->a_shift = 0;
<a name="l00689"></a>00689
<a name="l00690"></a>00690 <span class="comment">/* If we are going to need to setup a palette we need bit shifts */</span>
<a name="l00691"></a>00691 <span class="keywordflow">if</span> ((visual_type == GLX_DIRECT_COLOR)
<a name="l00692"></a>00692 && ((i->r_shift == -1) || (i->g_shift == -1) || (i->b_shift == -1))
<a name="l00693"></a>00693 && (i->pixel_size.rgba.r + i->pixel_size.rgba.g + i->pixel_size.rgba.b
<a name="l00694"></a>00694 <= 12)) {
<a name="l00695"></a>00695 <span class="comment">/* XXX <rohannessian> Report something here? */</span>
<a name="l00696"></a>00696 XFree(v);
<a name="l00697"></a>00697 <span class="keywordflow">return</span> -1;
<a name="l00698"></a>00698 }
<a name="l00699"></a>00699
<a name="l00700"></a>00700 i->colour_depth = 0;
<a name="l00701"></a>00701
<a name="l00702"></a>00702 <span class="keywordflow">if</span> (i->pixel_size.rgba.r == 3
<a name="l00703"></a>00703 && i->pixel_size.rgba.g == 3
<a name="l00704"></a>00704 && i->pixel_size.rgba.b == 2) {
<a name="l00705"></a>00705 i->colour_depth = 8;
<a name="l00706"></a>00706 }
<a name="l00707"></a>00707
<a name="l00708"></a>00708 <span class="keywordflow">if</span> (i->pixel_size.rgba.r == 5
<a name="l00709"></a>00709 && i->pixel_size.rgba.b == 5) {
<a name="l00710"></a>00710 <span class="keywordflow">if</span> (i->pixel_size.rgba.g == 5) {
<a name="l00711"></a>00711 i->colour_depth = 15;
<a name="l00712"></a>00712 }
<a name="l00713"></a>00713 <span class="keywordflow">if</span> (i->pixel_size.rgba.g == 6) {
<a name="l00714"></a>00714 i->colour_depth = 16;
<a name="l00715"></a>00715 }
<a name="l00716"></a>00716 }
<a name="l00717"></a>00717
<a name="l00718"></a>00718 <span class="keywordflow">if</span> (i->pixel_size.rgba.r == 8
<a name="l00719"></a>00719 && i->pixel_size.rgba.g == 8
<a name="l00720"></a>00720 && i->pixel_size.rgba.b == 8) {
<a name="l00721"></a>00721 <span class="keywordflow">if</span> (i->pixel_size.rgba.a == 0) {
<a name="l00722"></a>00722 i->colour_depth = 24;
<a name="l00723"></a>00723 }
<a name="l00724"></a>00724 <span class="keywordflow">if</span> (i->pixel_size.rgba.a == 8) {
<a name="l00725"></a>00725 i->colour_depth = 32;
<a name="l00726"></a>00726 <span class="comment">/* small hack that tries to guess alpha shifting */</span>
<a name="l00727"></a>00727 i->a_shift = 48 - i->r_shift - i->g_shift - i->b_shift;
<a name="l00728"></a>00728 }
<a name="l00729"></a>00729 }
<a name="l00730"></a>00730
<a name="l00731"></a>00731 i->allegro_format = (i->colour_depth != 0)
<a name="l00732"></a>00732 && (i->g_shift == i->pixel_size.rgba.b)
<a name="l00733"></a>00733 && (i->r_shift * i->b_shift == 0)
<a name="l00734"></a>00734 && (i->r_shift + i->b_shift
<a name="l00735"></a>00735 == i->pixel_size.rgba.b + i->pixel_size.rgba.g);
<a name="l00736"></a>00736
<a name="l00737"></a>00737 <span class="keywordflow">if</span> (glXGetConfig(_xwin.display, v, GLX_SAMPLE_BUFFERS, &sbuffers)) {
<a name="l00738"></a>00738 <span class="comment">/* Multisample extension is not supported */</span>
<a name="l00739"></a>00739 i->sample_buffers = 0;
<a name="l00740"></a>00740 }
<a name="l00741"></a>00741 <span class="keywordflow">else</span> {
<a name="l00742"></a>00742 i->sample_buffers = sbuffers;
<a name="l00743"></a>00743 }
<a name="l00744"></a>00744 <span class="keywordflow">if</span> (glXGetConfig(_xwin.display, v, GLX_SAMPLES, &samples)) {
<a name="l00745"></a>00745 <span class="comment">/* Multisample extension is not supported */</span>
<a name="l00746"></a>00746 i->samples = 0;
<a name="l00747"></a>00747 }
<a name="l00748"></a>00748 <span class="keywordflow">else</span> {
<a name="l00749"></a>00749 i->samples = samples;
<a name="l00750"></a>00750 }
<a name="l00751"></a>00751
<a name="l00752"></a>00752 XFree(v);
<a name="l00753"></a>00753
<a name="l00754"></a>00754 TRACE(PREFIX_I <span class="stringliteral">"Color Depth: %i\n"</span>, buffer_size);
<a name="l00755"></a>00755 TRACE(PREFIX_I <span class="stringliteral">"RGBA Type: %s point\n"</span>, i->float_color ? <span class="stringliteral">"floating"</span> : <span class="stringliteral">"fixed"</span>);
<a name="l00756"></a>00756 TRACE(PREFIX_I <span class="stringliteral">"RGBA: %i.%i.%i.%i\n"</span>, i->pixel_size.rgba.r, i->pixel_size.rgba.g,
<a name="l00757"></a>00757 i->pixel_size.rgba.b, i->pixel_size.rgba.a);
<a name="l00758"></a>00758 TRACE(PREFIX_I <span class="stringliteral">"Accum: %i.%i.%i.%i\n"</span>, i->accum_size.rgba.r, i->accum_size.rgba.g,
<a name="l00759"></a>00759 i->accum_size.rgba.b, i->accum_size.rgba.a);
<a name="l00760"></a>00760 TRACE(PREFIX_I <span class="stringliteral">"DblBuf: %i Zbuf: %i Stereo: %i Aux: %i Stencil: %i\n"</span>,
<a name="l00761"></a>00761 i->doublebuffered, i->depth_size, i->stereo,
<a name="l00762"></a>00762 i->aux_buffers, i->stencil_size);
<a name="l00763"></a>00763 TRACE(PREFIX_I <span class="stringliteral">"Shift: %i.%i.%i.%i\n"</span>, i->r_shift, i->g_shift, i->b_shift,
<a name="l00764"></a>00764 i->a_shift);
<a name="l00765"></a>00765 TRACE(PREFIX_I <span class="stringliteral">"Sample Buffers: %i Samples: %i\n"</span>, i->sample_buffers, i->samples);
<a name="l00766"></a>00766 TRACE(PREFIX_I <span class="stringliteral">"Decoded bpp: %i\n"</span>, i->colour_depth);
<a name="l00767"></a>00767
<a name="l00768"></a>00768 <span class="keywordflow">return</span> 0;
<a name="l00769"></a>00769 }
<a name="l00770"></a>00770
<a name="l00771"></a>00771
<a name="l00772"></a>00772
<a name="l00773"></a>00773 <span class="keywordtype">int</span> allegro_gl_x_windowed_choose_fbconfig (GLXFBConfig *ret_fbconfig) {
<a name="l00774"></a>00774 <span class="keywordtype">int</span> num_fbconfigs, i;
<a name="l00775"></a>00775 GLXFBConfig *fbconfig;
<a name="l00776"></a>00776 <span class="keyword">struct </span>allegro_gl_display_info dinfo;
<a name="l00777"></a>00777
<a name="l00778"></a>00778 fbconfig = glXGetFBConfigs (_xwin.display, _xwin.screen, &num_fbconfigs);
<a name="l00779"></a>00779 <span class="keywordflow">if</span> (!fbconfig || !num_fbconfigs)
<a name="l00780"></a>00780 <span class="keywordflow">return</span> FALSE;
<a name="l00781"></a>00781
<a name="l00782"></a>00782 TRACE(PREFIX_I <span class="stringliteral">"x_windowed_choose_fbconfig: %i formats.\n"</span>, num_fbconfigs);
<a name="l00783"></a>00783 __allegro_gl_reset_scorer();
<a name="l00784"></a>00784
<a name="l00785"></a>00785 <span class="keywordflow">for</span> (i = 0; i < num_fbconfigs; i++) {
<a name="l00786"></a>00786 TRACE(PREFIX_I <span class="stringliteral">"x_windowed_choose_fbconfig: Mode %i\n"</span>, i);
<a name="l00787"></a>00787 <span class="keywordflow">if</span> (decode_fbconfig (*(fbconfig + i), &dinfo) != -1) {
<a name="l00788"></a>00788 __allegro_gl_score_config (i, &dinfo);
<a name="l00789"></a>00789 }
<a name="l00790"></a>00790 }
<a name="l00791"></a>00791
<a name="l00792"></a>00792 i = __allegro_gl_best_config();
<a name="l00793"></a>00793 TRACE(PREFIX_I <span class="stringliteral">"x_windowed_choose_fbconfig: Best FBConfig is: %i\n"</span>, i);
<a name="l00794"></a>00794
<a name="l00795"></a>00795 <span class="keywordflow">if</span> (i < 0) {
<a name="l00796"></a>00796 XFree(fbconfig);
<a name="l00797"></a>00797 <span class="keywordflow">return</span> FALSE;
<a name="l00798"></a>00798 }
<a name="l00799"></a>00799
<a name="l00800"></a>00800 *ret_fbconfig = *(fbconfig + i);
<a name="l00801"></a>00801 XFree(fbconfig);
<a name="l00802"></a>00802
<a name="l00803"></a>00803 <span class="keywordflow">return</span> TRUE;
<a name="l00804"></a>00804 }
<a name="l00805"></a>00805
<a name="l00806"></a>00806
<a name="l00807"></a>00807
<a name="l00808"></a>00808 <span class="comment">/* windowed_choose_visual:</span>
<a name="l00809"></a>00809 <span class="comment"> * Chooses a visual to use.</span>
<a name="l00810"></a>00810 <span class="comment"> */</span>
<a name="l00811"></a>00811 <span class="keyword">static</span> XVisualInfo *allegro_gl_x_windowed_choose_visual (<span class="keywordtype">void</span>)
<a name="l00812"></a>00812 {
<a name="l00813"></a>00813 <span class="keywordtype">int</span> num_visuals, i;
<a name="l00814"></a>00814 XVisualInfo *vinfo;
<a name="l00815"></a>00815 <span class="keyword">struct </span>allegro_gl_display_info dinfo;
<a name="l00816"></a>00816 <span class="keyword">static</span> XVisualInfo ret_vinfo;
<a name="l00817"></a>00817
<a name="l00818"></a>00818 vinfo = XGetVisualInfo (_xwin.display, 0, NULL, &num_visuals);
<a name="l00819"></a>00819 <span class="keywordflow">if</span> (!vinfo) <span class="keywordflow">return</span> NULL;
<a name="l00820"></a>00820
<a name="l00821"></a>00821 TRACE(PREFIX_I <span class="stringliteral">"x_windowed_choose_visual: %i formats.\n"</span>, num_visuals);
<a name="l00822"></a>00822 __allegro_gl_reset_scorer();
<a name="l00823"></a>00823
<a name="l00824"></a>00824 <span class="keywordflow">for</span> (i = 0; i < num_visuals; i++) {
<a name="l00825"></a>00825 TRACE(PREFIX_I <span class="stringliteral">"x_windowed_choose_visual: Mode %i\n"</span>, i);
<a name="l00826"></a>00826 <span class="keywordflow">if</span> (decode_visual (vinfo + i, &dinfo) != -1) {
<a name="l00827"></a>00827 __allegro_gl_score_config (i, &dinfo);
<a name="l00828"></a>00828 }
<a name="l00829"></a>00829 }
<a name="l00830"></a>00830
<a name="l00831"></a>00831 i = __allegro_gl_best_config();
<a name="l00832"></a>00832 TRACE(PREFIX_I <span class="stringliteral">"x_windowed_choose_visual: Best config is: %i\n"</span>, i);
<a name="l00833"></a>00833
<a name="l00834"></a>00834 <span class="keywordflow">if</span> (i < 0) <span class="keywordflow">return</span> NULL;
<a name="l00835"></a>00835
<a name="l00836"></a>00836 memcpy (&ret_vinfo, vinfo+i, <span class="keyword">sizeof</span> ret_vinfo);
<a name="l00837"></a>00837 XFree (vinfo);
<a name="l00838"></a>00838
<a name="l00839"></a>00839 <span class="keywordflow">return</span> &ret_vinfo;
<a name="l00840"></a>00840 }
<a name="l00841"></a>00841
<a name="l00842"></a>00842
<a name="l00843"></a>00843
<a name="l00844"></a>00844 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00845"></a>00845 <span class="preprocessor"></span><span class="comment">/* get_xf86_modes:</span>
<a name="l00846"></a>00846 <span class="comment"> * Test if the XF86VidMode extension is available and get the gfx modes</span>
<a name="l00847"></a>00847 <span class="comment"> * that can be queried.</span>
<a name="l00848"></a>00848 <span class="comment"> */</span>
<a name="l00849"></a>00849 <span class="keyword">static</span> <span class="keywordtype">int</span> get_xf86_modes(XF86VidModeModeInfo ***modesinfo, <span class="keywordtype">int</span> *num_modes)
<a name="l00850"></a>00850 {
<a name="l00851"></a>00851 <span class="keywordtype">int</span> vid_event_base, vid_error_base;
<a name="l00852"></a>00852 <span class="keywordtype">int</span> vid_major_version, vid_minor_version;
<a name="l00853"></a>00853
<a name="l00854"></a>00854 <span class="comment">/* Test for presence of VidMode extension. */</span>
<a name="l00855"></a>00855 <span class="keywordflow">if</span> (!XF86VidModeQueryExtension(_xwin.display, &vid_event_base,
<a name="l00856"></a>00856 &vid_error_base)
<a name="l00857"></a>00857 || !XF86VidModeQueryVersion(_xwin.display, &vid_major_version,
<a name="l00858"></a>00858 &vid_minor_version)) {
<a name="l00859"></a>00859
<a name="l00860"></a>00860 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l00861"></a>00861 get_config_text(<span class="stringliteral">"VidMode extension is not supported"</span>));
<a name="l00862"></a>00862 <span class="keywordflow">return</span> -1;
<a name="l00863"></a>00863 }
<a name="l00864"></a>00864
<a name="l00865"></a>00865 <span class="keywordflow">if</span> (!XF86VidModeGetAllModeLines(_xwin.display, _xwin.screen, num_modes,
<a name="l00866"></a>00866 modesinfo)) {
<a name="l00867"></a>00867 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l00868"></a>00868 get_config_text(<span class="stringliteral">"Can not Get ModeLines"</span>));
<a name="l00869"></a>00869 <span class="keywordflow">return</span> -1;
<a name="l00870"></a>00870 }
<a name="l00871"></a>00871
<a name="l00872"></a>00872 <span class="keywordflow">return</span> 0;
<a name="l00873"></a>00873 }
<a name="l00874"></a>00874 <span class="preprocessor">#endif</span>
<a name="l00875"></a>00875 <span class="preprocessor"></span>
<a name="l00876"></a>00876
<a name="l00877"></a>00877 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_x_error_handler(Display *display, XErrorEvent *err_event)
<a name="l00878"></a>00878 {
<a name="l00879"></a>00879 <span class="keywordtype">char</span> buffer[256];
<a name="l00880"></a>00880
<a name="l00881"></a>00881 XGetErrorText(display, err_event->error_code, buffer, 256);
<a name="l00882"></a>00882 TRACE(PREFIX_E <span class="stringliteral">"%s\n"</span>, buffer);
<a name="l00883"></a>00883 <span class="keywordflow">return</span> 0;
<a name="l00884"></a>00884 }
<a name="l00885"></a>00885
<a name="l00886"></a>00886
<a name="l00887"></a>00887 <span class="comment">/* create_window:</span>
<a name="l00888"></a>00888 <span class="comment"> * Based on Michael's `_xwin[_private]_create_window' and the xdemos</span>
<a name="l00889"></a>00889 <span class="comment"> * from the Mesa distribution (I don't remember which one).</span>
<a name="l00890"></a>00890 <span class="comment"> */</span>
<a name="l00891"></a>00891 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_x_create_window (<span class="keywordtype">int</span> fullscreen)
<a name="l00892"></a>00892 {
<a name="l00893"></a>00893 Window root;
<a name="l00894"></a>00894 XVisualInfo *visinfo;
<a name="l00895"></a>00895 XSetWindowAttributes setattr;
<a name="l00896"></a>00896 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> valuemask = CWBackPixel | CWBorderPixel | CWColormap
<a name="l00897"></a>00897 | CWEventMask;
<a name="l00898"></a>00898 XSizeHints *hints;
<a name="l00899"></a>00899 GLXFBConfig fbconfig;
<a name="l00900"></a>00900 <span class="keywordtype">int</span> use_fbconfig;
<a name="l00901"></a>00901
<a name="l00902"></a>00902 <span class="keywordflow">if</span> (_xwin.display == 0) {
<a name="l00903"></a>00903 <span class="keywordflow">return</span> -2;
<a name="l00904"></a>00904 }
<a name="l00905"></a>00905
<a name="l00906"></a>00906 old_x_error_handler = XSetErrorHandler(allegro_gl_x_error_handler);
<a name="l00907"></a>00907
<a name="l00908"></a>00908 <span class="comment">/* Fill in missing color depth info */</span>
<a name="l00909"></a>00909 __allegro_gl_fill_in_info();
<a name="l00910"></a>00910
<a name="l00911"></a>00911 use_fbconfig = (_glxwin.major > 1 || (_glxwin.major == 1 && _glxwin.minor >= 3));
<a name="l00912"></a>00912
<a name="l00913"></a>00913 <span class="keywordflow">if</span> (use_fbconfig) {
<a name="l00914"></a>00914 TRACE(PREFIX_I <span class="stringliteral">"x_create_window: using FBConfig routines\n"</span>);
<a name="l00915"></a>00915
<a name="l00916"></a>00916 <span class="keywordflow">if</span> (!allegro_gl_x_windowed_choose_fbconfig(&fbconfig)) {
<a name="l00917"></a>00917 TRACE(PREFIX_I <span class="stringliteral">"x_create_window: Failed using FBConfig, switching "</span>
<a name="l00918"></a>00918 <span class="stringliteral">"back to VisualInfo routines\n"</span>);
<a name="l00919"></a>00919 use_fbconfig = FALSE;
<a name="l00920"></a>00920 <span class="keywordflow">goto</span> old_choose_visual;
<a name="l00921"></a>00921 }
<a name="l00922"></a>00922
<a name="l00923"></a>00923 <span class="comment">/* Query back FBConfig components */</span>
<a name="l00924"></a>00924 <span class="keywordflow">if</span> (decode_fbconfig(fbconfig, &allegro_gl_display_info)) {
<a name="l00925"></a>00925 TRACE(PREFIX_E <span class="stringliteral">"x_create_window: Cannot decode FBConfig, switching "</span>
<a name="l00926"></a>00926 <span class="stringliteral">"back to VisualInfo routines\n"</span>);
<a name="l00927"></a>00927 use_fbconfig = FALSE;
<a name="l00928"></a>00928 <span class="keywordflow">goto</span> old_choose_visual;
<a name="l00929"></a>00929 }
<a name="l00930"></a>00930
<a name="l00931"></a>00931 visinfo = glXGetVisualFromFBConfig(_xwin.display, fbconfig);
<a name="l00932"></a>00932 <span class="keywordflow">if</span> (!visinfo) {
<a name="l00933"></a>00933 TRACE(PREFIX_I <span class="stringliteral">"x_create_window: Failed to convert FBConfig to "</span>
<a name="l00934"></a>00934 <span class="stringliteral">"visual, switching back to VisualInfo routines\n"</span>);
<a name="l00935"></a>00935 use_fbconfig = FALSE;
<a name="l00936"></a>00936 <span class="keywordflow">goto</span> old_choose_visual;
<a name="l00937"></a>00937 }
<a name="l00938"></a>00938 }
<a name="l00939"></a>00939 <span class="keywordflow">else</span> {
<a name="l00940"></a>00940 old_choose_visual:
<a name="l00941"></a>00941 TRACE(PREFIX_I <span class="stringliteral">"x_create_window: using VisualInfo routines\n"</span>);
<a name="l00942"></a>00942
<a name="l00943"></a>00943 <span class="comment">/* Find best visual */</span>
<a name="l00944"></a>00944 visinfo = allegro_gl_x_windowed_choose_visual();
<a name="l00945"></a>00945 <span class="keywordflow">if</span> (!visinfo) {
<a name="l00946"></a>00946 TRACE(PREFIX_E <span class="stringliteral">"x_create_window: Can not get visual.\n"</span>);
<a name="l00947"></a>00947 XSetErrorHandler(old_x_error_handler);
<a name="l00948"></a>00948 <span class="keywordflow">return</span> -2;
<a name="l00949"></a>00949 }
<a name="l00950"></a>00950
<a name="l00951"></a>00951 <span class="comment">/* Query back visual components */</span>
<a name="l00952"></a>00952 <span class="keywordflow">if</span> (decode_visual (visinfo, &allegro_gl_display_info)) {
<a name="l00953"></a>00953 TRACE(PREFIX_E <span class="stringliteral">"x_create_window: Can not decode visual.\n"</span>);
<a name="l00954"></a>00954 XSetErrorHandler(old_x_error_handler);
<a name="l00955"></a>00955 <span class="keywordflow">return</span> -2;
<a name="l00956"></a>00956 }
<a name="l00957"></a>00957 }
<a name="l00958"></a>00958
<a name="l00959"></a>00959 <span class="comment">/* Log some information about it */</span>
<a name="l00960"></a>00960 <span class="keywordflow">switch</span> (visinfo->class) {
<a name="l00961"></a>00961 <span class="keywordflow">case</span> TrueColor:
<a name="l00962"></a>00962 AGL_LOG (1, <span class="stringliteral">"x.c: visual class: TrueColor\n"</span>);
<a name="l00963"></a>00963 <span class="keywordflow">break</span>;
<a name="l00964"></a>00964 <span class="keywordflow">case</span> DirectColor:
<a name="l00965"></a>00965 AGL_LOG (1, <span class="stringliteral">"x.c: visual class: DirectColor\n"</span>);
<a name="l00966"></a>00966 <span class="keywordflow">break</span>;
<a name="l00967"></a>00967 <span class="keywordflow">default</span>:
<a name="l00968"></a>00968 AGL_LOG (1, <span class="stringliteral">"x.c: visual class: invalid(!)\n"</span>);
<a name="l00969"></a>00969 }
<a name="l00970"></a>00970
<a name="l00971"></a>00971
<a name="l00972"></a>00972 <span class="comment">/* Begin window creation. */</span>
<a name="l00973"></a>00973
<a name="l00974"></a>00974 <span class="preprocessor">#if GET_ALLEGRO_VERSION() >= MAKE_VER(4, 2, 1)</span>
<a name="l00975"></a>00975 <span class="preprocessor"></span> <span class="comment">/* Hack: For Allegro 4.2.1, we need to keep the existing window. */</span>
<a name="l00976"></a>00976 <span class="keywordflow">if</span> (backup_allegro_window == None) {
<a name="l00977"></a>00977 backup_allegro_window = _xwin.window;
<a name="l00978"></a>00978 backup_allegro_colormap = _xwin.colormap;
<a name="l00979"></a>00979 _xwin.colormap = None;
<a name="l00980"></a>00980 XUnmapWindow(_xwin.display, _xwin.window);
<a name="l00981"></a>00981 }
<a name="l00982"></a>00982 <span class="keywordflow">else</span>
<a name="l00983"></a>00983 <span class="preprocessor">#endif</span>
<a name="l00984"></a>00984 <span class="preprocessor"></span> XDestroyWindow (_xwin.display, _xwin.window);
<a name="l00985"></a>00985
<a name="l00986"></a>00986 _xwin.window = None;
<a name="l00987"></a>00987
<a name="l00988"></a>00988 root = RootWindow (_xwin.display, _xwin.screen);
<a name="l00989"></a>00989
<a name="l00990"></a>00990 <span class="comment">/* Recreate window. */</span>
<a name="l00991"></a>00991 setattr.background_pixel = XBlackPixel (_xwin.display, _xwin.screen);
<a name="l00992"></a>00992 setattr.border_pixel = XBlackPixel (_xwin.display, _xwin.screen);
<a name="l00993"></a>00993 setattr.colormap = XCreateColormap (_xwin.display, root, visinfo->visual, AllocNone);
<a name="l00994"></a>00994 setattr.event_mask =
<a name="l00995"></a>00995 ( KeyPressMask | KeyReleaseMask
<a name="l00996"></a>00996 | EnterWindowMask | LeaveWindowMask
<a name="l00997"></a>00997 | FocusChangeMask | ExposureMask
<a name="l00998"></a>00998 | ButtonPressMask | ButtonReleaseMask | PointerMotionMask
<a name="l00999"></a>00999 <span class="comment">/*| MappingNotifyMask (SubstructureRedirectMask?)*/</span>
<a name="l01000"></a>01000 );
<a name="l01001"></a>01001
<a name="l01002"></a>01002 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l01003"></a>01003 <span class="preprocessor"></span> <span class="keywordflow">if</span> (fullscreen) {
<a name="l01004"></a>01004 <span class="keywordtype">int</span> i;
<a name="l01005"></a>01005 <span class="keywordtype">int</span> bestmode = 0;
<a name="l01006"></a>01006 _xwin.num_modes = 0;
<a name="l01007"></a>01007 _xwin.modesinfo = NULL;
<a name="l01008"></a>01008 _glxwin.fullscreen = TRUE;
<a name="l01009"></a>01009
<a name="l01010"></a>01010 <span class="keywordflow">if</span> (get_xf86_modes(&_xwin.modesinfo, &_xwin.num_modes)) {
<a name="l01011"></a>01011 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01012"></a>01012 get_config_text(<span class="stringliteral">"x_create_window: Can't get"</span>
<a name="l01013"></a>01013 <span class="stringliteral">"XF86VidMode info.\n"</span>));
<a name="l01014"></a>01014 XSetErrorHandler(old_x_error_handler);
<a name="l01015"></a>01015 <span class="keywordflow">return</span> -2;
<a name="l01016"></a>01016 }
<a name="l01017"></a>01017
<a name="l01018"></a>01018 <span class="comment">/* look for mode with requested resolution */</span>
<a name="l01019"></a>01019 <span class="keywordflow">for</span> (i = 0; i < _xwin.num_modes; i++)
<a name="l01020"></a>01020 {
<a name="l01021"></a>01021 <span class="keywordflow">if</span> ((_xwin.modesinfo[i]->hdisplay == allegro_gl_display_info.w)
<a name="l01022"></a>01022 && (_xwin.modesinfo[i]->vdisplay == allegro_gl_display_info.h))
<a name="l01023"></a>01023 bestmode = i;
<a name="l01024"></a>01024 }
<a name="l01025"></a>01025
<a name="l01026"></a>01026 setattr.override_redirect = True;
<a name="l01027"></a>01027 <span class="keywordflow">if</span> (!XF86VidModeSwitchToMode(_xwin.display, _xwin.screen,
<a name="l01028"></a>01028 _xwin.modesinfo[bestmode])) {
<a name="l01029"></a>01029
<a name="l01030"></a>01030 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01031"></a>01031 get_config_text(<span class="stringliteral">"Can not set XF86VidMode mode"</span>));
<a name="l01032"></a>01032 XSetErrorHandler(old_x_error_handler);
<a name="l01033"></a>01033 <span class="keywordflow">return</span> -1;
<a name="l01034"></a>01034 }
<a name="l01035"></a>01035
<a name="l01036"></a>01036 XF86VidModeSetViewPort(_xwin.display, _xwin.screen, 0, 0);
<a name="l01037"></a>01037
<a name="l01038"></a>01038 <span class="comment">/* Lock Mode switching */</span>
<a name="l01039"></a>01039 XF86VidModeLockModeSwitch(_xwin.display, _xwin.screen, True);
<a name="l01040"></a>01040 _xwin.mode_switched = 1;
<a name="l01041"></a>01041
<a name="l01042"></a>01042 allegro_gl_display_info.x = 0;
<a name="l01043"></a>01043 allegro_gl_display_info.y = 0;
<a name="l01044"></a>01044 allegro_gl_display_info.w = _xwin.modesinfo[bestmode]->hdisplay;
<a name="l01045"></a>01045 allegro_gl_display_info.h = _xwin.modesinfo[bestmode]->vdisplay;
<a name="l01046"></a>01046
<a name="l01047"></a>01047 valuemask |= CWOverrideRedirect;
<a name="l01048"></a>01048 _xwin.override_redirected = 1;
<a name="l01049"></a>01049 }
<a name="l01050"></a>01050
<a name="l01051"></a>01051 _xwin.window = XCreateWindow (
<a name="l01052"></a>01052 _xwin.display, root,
<a name="l01053"></a>01053 allegro_gl_display_info.x, allegro_gl_display_info.y,
<a name="l01054"></a>01054 allegro_gl_display_info.w, allegro_gl_display_info.h, 0,
<a name="l01055"></a>01055 visinfo->depth,
<a name="l01056"></a>01056 InputOutput,
<a name="l01057"></a>01057 visinfo->visual,
<a name="l01058"></a>01058 valuemask, &setattr
<a name="l01059"></a>01059 );
<a name="l01060"></a>01060
<a name="l01061"></a>01061 <span class="preprocessor">#else //ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l01062"></a>01062 <span class="preprocessor"></span> <span class="keywordflow">if</span> (fullscreen) {
<a name="l01063"></a>01063 <span class="comment">/* Without Xf86VidMode extension we support only fullscreen modes which</span>
<a name="l01064"></a>01064 <span class="comment"> * match current resolution. */</span>
<a name="l01065"></a>01065 <span class="keywordtype">int</span> fs_width = DisplayWidth(_xwin.display, _xwin.screen);
<a name="l01066"></a>01066 <span class="keywordtype">int</span> fs_height = DisplayHeight(_xwin.display, _xwin.screen);
<a name="l01067"></a>01067
<a name="l01068"></a>01068 <span class="keywordflow">if</span> (fs_width != allegro_gl_display_info.w
<a name="l01069"></a>01069 || fs_height != allegro_gl_display_info.h) {
<a name="l01070"></a>01070 TRACE(PREFIX_E <span class="stringliteral">"Only desktop resolution fullscreen available."</span>);
<a name="l01071"></a>01071 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01072"></a>01072 get_config_text(<span class="stringliteral">"Compiled without Xf86VidMode extension support.\n"</span>
<a name="l01073"></a>01073 <span class="stringliteral">"Only desktop resolution fullscreen available."</span>));
<a name="l01074"></a>01074 XSetErrorHandler(old_x_error_handler);
<a name="l01075"></a>01075 <span class="keywordflow">return</span> -1;
<a name="l01076"></a>01076 }
<a name="l01077"></a>01077
<a name="l01078"></a>01078 _glxwin.fullscreen = TRUE;
<a name="l01079"></a>01079
<a name="l01080"></a>01080 <span class="comment">/* Create the fullscreen window. */</span>
<a name="l01081"></a>01081 _xwin.window = XCreateWindow(_xwin.display, root,
<a name="l01082"></a>01082 allegro_gl_display_info.x, allegro_gl_display_info.y,
<a name="l01083"></a>01083 fs_width, fs_height, 0,
<a name="l01084"></a>01084 visinfo->depth,
<a name="l01085"></a>01085 InputOutput,
<a name="l01086"></a>01086 visinfo->visual,
<a name="l01087"></a>01087 valuemask, &setattr);
<a name="l01088"></a>01088
<a name="l01089"></a>01089 <span class="comment">/* Map the fullscreen window. */</span>
<a name="l01090"></a>01090 XMapRaised(_xwin.display, _xwin.window);
<a name="l01091"></a>01091
<a name="l01092"></a>01092 <span class="comment">/* Make sure we got to the top of the window stack. */</span>
<a name="l01093"></a>01093 XRaiseWindow(_xwin.display, _xwin.fs_window);
<a name="l01094"></a>01094 }
<a name="l01095"></a>01095 <span class="keywordflow">else</span> {
<a name="l01096"></a>01096 _xwin.window = XCreateWindow (
<a name="l01097"></a>01097 _xwin.display, root,
<a name="l01098"></a>01098 allegro_gl_display_info.x, allegro_gl_display_info.y,
<a name="l01099"></a>01099 allegro_gl_display_info.w, allegro_gl_display_info.h, 0,
<a name="l01100"></a>01100 visinfo->depth,
<a name="l01101"></a>01101 InputOutput,
<a name="l01102"></a>01102 visinfo->visual,
<a name="l01103"></a>01103 valuemask, &setattr
<a name="l01104"></a>01104 );
<a name="l01105"></a>01105 }
<a name="l01106"></a>01106 <span class="preprocessor">#endif //ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l01107"></a>01107 <span class="preprocessor"></span>
<a name="l01108"></a>01108 <span class="comment">/* Set size and position hints for Window Manager :</span>
<a name="l01109"></a>01109 <span class="comment"> * prevents the window to be resized</span>
<a name="l01110"></a>01110 <span class="comment"> */</span>
<a name="l01111"></a>01111 hints = XAllocSizeHints();
<a name="l01112"></a>01112 <span class="keywordflow">if</span> (hints) {
<a name="l01113"></a>01113 <span class="comment">/* This code chunk comes from Allegro's src/x/xwin.c */</span>
<a name="l01114"></a>01114 hints->flags = PMinSize | PMaxSize | PBaseSize;
<a name="l01115"></a>01115 hints->min_width = hints->max_width = hints->base_width
<a name="l01116"></a>01116 = allegro_gl_display_info.w;
<a name="l01117"></a>01117 hints->min_height = hints->max_height = hints->base_height
<a name="l01118"></a>01118 = allegro_gl_display_info.h;
<a name="l01119"></a>01119
<a name="l01120"></a>01120 XSetWMNormalHints(_xwin.display, _xwin.window, hints);
<a name="l01121"></a>01121 XFree(hints);
<a name="l01122"></a>01122 }
<a name="l01123"></a>01123
<a name="l01124"></a>01124
<a name="l01125"></a>01125 <span class="comment">/* Set WM_DELETE_WINDOW atom in WM_PROTOCOLS property</span>
<a name="l01126"></a>01126 <span class="comment"> * (to get window_delete requests).</span>
<a name="l01127"></a>01127 <span class="comment"> */</span>
<a name="l01128"></a>01128 {
<a name="l01129"></a>01129 Atom wm_delete_window = XInternAtom(_xwin.display, <span class="stringliteral">"WM_DELETE_WINDOW"</span>, False);
<a name="l01130"></a>01130 XSetWMProtocols(_xwin.display, _xwin.window, &wm_delete_window, 1);
<a name="l01131"></a>01131 }
<a name="l01132"></a>01132
<a name="l01133"></a>01133 <span class="comment">/* Finish off the GLX setup */</span>
<a name="l01134"></a>01134 <span class="keywordflow">if</span> (use_fbconfig)
<a name="l01135"></a>01135 _glxwin.ctx = glXCreateNewContext (_xwin.display, fbconfig, GLX_RGBA_TYPE, NULL, True);
<a name="l01136"></a>01136 <span class="keywordflow">else</span>
<a name="l01137"></a>01137 _glxwin.ctx = glXCreateContext (_xwin.display, visinfo, NULL, True);
<a name="l01138"></a>01138
<a name="l01139"></a>01139 <span class="keywordflow">if</span> (use_fbconfig) {
<a name="l01140"></a>01140 _glxwin.window = glXCreateWindow(_xwin.display, fbconfig, _xwin.window, 0);
<a name="l01141"></a>01141 <span class="keywordflow">if</span> (!_glxwin.window) {
<a name="l01142"></a>01142 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01143"></a>01143 get_config_text(<span class="stringliteral">"Cannot create GLX window."</span>));
<a name="l01144"></a>01144 XSetErrorHandler(old_x_error_handler);
<a name="l01145"></a>01145 <span class="keywordflow">return</span> -1;
<a name="l01146"></a>01146 }
<a name="l01147"></a>01147 _glxwin.use_glx_window = TRUE;
<a name="l01148"></a>01148 }
<a name="l01149"></a>01149
<a name="l01150"></a>01150 <span class="keywordflow">if</span> (!_glxwin.ctx) {
<a name="l01151"></a>01151 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01152"></a>01152 get_config_text(<span class="stringliteral">"Can not create GLX context."</span>));
<a name="l01153"></a>01153 XSetErrorHandler(old_x_error_handler);
<a name="l01154"></a>01154 <span class="keywordflow">return</span> -1;
<a name="l01155"></a>01155 }
<a name="l01156"></a>01156 <span class="keywordflow">else</span> {
<a name="l01157"></a>01157 Bool ret;
<a name="l01158"></a>01158
<a name="l01159"></a>01159 <span class="keywordflow">if</span> (use_fbconfig)
<a name="l01160"></a>01160 ret = glXMakeContextCurrent(_xwin.display, _glxwin.window, _glxwin.window, _glxwin.ctx);
<a name="l01161"></a>01161 <span class="keywordflow">else</span>
<a name="l01162"></a>01162 ret = glXMakeCurrent (_xwin.display, _xwin.window, _glxwin.ctx);
<a name="l01163"></a>01163
<a name="l01164"></a>01164 <span class="keywordflow">if</span> (!ret) {
<a name="l01165"></a>01165 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01166"></a>01166 get_config_text(<span class="stringliteral">"Cannot make GLX context current."</span>));
<a name="l01167"></a>01167 XSetErrorHandler(old_x_error_handler);
<a name="l01168"></a>01168 <span class="keywordflow">return</span> -1;
<a name="l01169"></a>01169 }
<a name="l01170"></a>01170 }
<a name="l01171"></a>01171
<a name="l01172"></a>01172 <span class="comment">/* Finish off the Allegro setup */</span>
<a name="l01173"></a>01173
<a name="l01174"></a>01174 <span class="comment">/* Get associated visual and window depth (bits per pixel), and</span>
<a name="l01175"></a>01175 <span class="comment"> * store window size */</span>
<a name="l01176"></a>01176 {
<a name="l01177"></a>01177 XWindowAttributes getattr;
<a name="l01178"></a>01178 XGetWindowAttributes(_xwin.display, _xwin.window, &getattr);
<a name="l01179"></a>01179 _xwin.visual = getattr.visual;
<a name="l01180"></a>01180 _xwin.window_depth = getattr.depth;
<a name="l01181"></a>01181 _xwin.window_width = allegro_gl_display_info.w;
<a name="l01182"></a>01182 _xwin.window_height = allegro_gl_display_info.h;
<a name="l01183"></a>01183 _xwin.screen_depth = getattr.depth;
<a name="l01184"></a>01184 _xwin.screen_width = allegro_gl_display_info.w;
<a name="l01185"></a>01185 _xwin.screen_height = allegro_gl_display_info.h;
<a name="l01186"></a>01186 }
<a name="l01187"></a>01187
<a name="l01188"></a>01188 <span class="comment">/* Destroy the current colormap (if any) */</span>
<a name="l01189"></a>01189 <span class="keywordflow">if</span> (_xwin.colormap != None) {
<a name="l01190"></a>01190 XUninstallColormap(_xwin.display, _xwin.colormap);
<a name="l01191"></a>01191 XFreeColormap(_xwin.display, _xwin.colormap);
<a name="l01192"></a>01192 }
<a name="l01193"></a>01193
<a name="l01194"></a>01194 <span class="comment">/* Create and install colormap. */</span>
<a name="l01195"></a>01195 <span class="keywordflow">if</span> (_xwin.visual->class == DirectColor) {
<a name="l01196"></a>01196 _xwin.colormap = XCreateColormap(_xwin.display, _xwin.window,
<a name="l01197"></a>01197 _xwin.visual, AllocAll);
<a name="l01198"></a>01198 }
<a name="l01199"></a>01199 <span class="keywordflow">else</span> { <span class="comment">/* must be TrueColor */</span>
<a name="l01200"></a>01200 _xwin.colormap = XCreateColormap(_xwin.display, _xwin.window,
<a name="l01201"></a>01201 _xwin.visual, AllocNone);
<a name="l01202"></a>01202 }
<a name="l01203"></a>01203 XSetWindowColormap(_xwin.display, _xwin.window, _xwin.colormap);
<a name="l01204"></a>01204 XInstallColormap(_xwin.display, _xwin.colormap);
<a name="l01205"></a>01205
<a name="l01206"></a>01206 <span class="comment">/* Setup a palette if needed */</span>
<a name="l01207"></a>01207 <span class="keywordflow">if</span> (_xwin.visual->class == DirectColor) {
<a name="l01208"></a>01208 XColor color;
<a name="l01209"></a>01209 <span class="keywordtype">int</span> rsize, gsize, bsize;
<a name="l01210"></a>01210 <span class="keywordtype">int</span> rmax, gmax, bmax;
<a name="l01211"></a>01211 <span class="keywordtype">int</span> rshift, gshift, bshift;
<a name="l01212"></a>01212 <span class="keywordtype">int</span> r, g, b;
<a name="l01213"></a>01213
<a name="l01214"></a>01214 AGL_LOG (1, <span class="stringliteral">"x.c: Using DirectColor visual, setting palette...\n"</span>);
<a name="l01215"></a>01215
<a name="l01216"></a>01216 rsize = 1 << allegro_gl_display_info.pixel_size.rgba.r;
<a name="l01217"></a>01217 gsize = 1 << allegro_gl_display_info.pixel_size.rgba.g;
<a name="l01218"></a>01218 bsize = 1 << allegro_gl_display_info.pixel_size.rgba.b;
<a name="l01219"></a>01219
<a name="l01220"></a>01220 rshift = allegro_gl_display_info.r_shift;
<a name="l01221"></a>01221 bshift = allegro_gl_display_info.b_shift;
<a name="l01222"></a>01222 gshift = allegro_gl_display_info.g_shift;
<a name="l01223"></a>01223
<a name="l01224"></a>01224 rmax = rsize - 1;
<a name="l01225"></a>01225 gmax = gsize - 1;
<a name="l01226"></a>01226 bmax = bsize - 1;
<a name="l01227"></a>01227
<a name="l01228"></a>01228 color.flags = DoRed | DoGreen | DoBlue;
<a name="l01229"></a>01229 <span class="keywordflow">for</span> (r = 0; r < rsize; r++) {
<a name="l01230"></a>01230 <span class="keywordflow">for</span> (g = 0; g < gsize; g++) {
<a name="l01231"></a>01231 <span class="keywordflow">for</span> (b = 0; b < bsize; b++) {
<a name="l01232"></a>01232 color.pixel = (r << rshift) | (g << gshift) | (b << bshift);
<a name="l01233"></a>01233 color.red = ((rmax <= 0) ? 0 : ((r * 65535L) / rmax));
<a name="l01234"></a>01234 color.green = ((gmax <= 0) ? 0 : ((g * 65535L) / gmax));
<a name="l01235"></a>01235 color.blue = ((bmax <= 0) ? 0 : ((b * 65535L) / bmax));
<a name="l01236"></a>01236 XStoreColor(_xwin.display, _xwin.colormap, &color);
<a name="l01237"></a>01237 }
<a name="l01238"></a>01238 }
<a name="l01239"></a>01239 }
<a name="l01240"></a>01240 }
<a name="l01241"></a>01241
<a name="l01242"></a>01242 <span class="comment">/* Configure the window a bit */</span>
<a name="l01243"></a>01243 {
<a name="l01244"></a>01244 XClassHint hint;
<a name="l01245"></a>01245 XWMHints wm_hints;
<a name="l01246"></a>01246
<a name="l01247"></a>01247 <span class="comment">/* Set title. */</span>
<a name="l01248"></a>01248 XStoreName(_xwin.display, _xwin.window, _xwin.window_title);
<a name="l01249"></a>01249
<a name="l01250"></a>01250 <span class="comment">/* Set hints. */</span>
<a name="l01251"></a>01251 hint.res_name = _xwin.application_name;
<a name="l01252"></a>01252 hint.res_class = _xwin.application_class;
<a name="l01253"></a>01253 XSetClassHint(_xwin.display, _xwin.window, &hint);
<a name="l01254"></a>01254
<a name="l01255"></a>01255 wm_hints.flags = InputHint | StateHint;
<a name="l01256"></a>01256 wm_hints.input = True;
<a name="l01257"></a>01257 wm_hints.initial_state = NormalState;
<a name="l01258"></a>01258
<a name="l01259"></a>01259 <span class="preprocessor">#ifdef ALLEGRO_XWINDOWS_WITH_XPM</span>
<a name="l01260"></a>01260 <span class="preprocessor"></span> <span class="keywordflow">if</span> (allegro_icon) {
<a name="l01261"></a>01261 wm_hints.flags |= IconPixmapHint | IconMaskHint | WindowGroupHint;
<a name="l01262"></a>01262 XpmCreatePixmapFromData(_xwin.display, _xwin.window, allegro_icon,&wm_hints.icon_pixmap, &wm_hints.icon_mask, NULL);
<a name="l01263"></a>01263 }
<a name="l01264"></a>01264 <span class="preprocessor">#endif</span>
<a name="l01265"></a>01265 <span class="preprocessor"></span>
<a name="l01266"></a>01266 XSetWMHints(_xwin.display, _xwin.window, &wm_hints);
<a name="l01267"></a>01267 }
<a name="l01268"></a>01268
<a name="l01269"></a>01269 <span class="comment">/* Map window. */</span>
<a name="l01270"></a>01270 XMapWindow(_xwin.display, _xwin.window);
<a name="l01271"></a>01271
<a name="l01272"></a>01272
<a name="l01273"></a>01273 <span class="keywordflow">if</span> (fullscreen) {
<a name="l01274"></a>01274 AL_CONST <span class="keywordtype">char</span> *fc = NULL;
<a name="l01275"></a>01275 <span class="keywordtype">char</span> tmp1[64], tmp2[128];
<a name="l01276"></a>01276 <span class="keywordtype">int</span> c = 0;
<a name="l01277"></a>01277 <span class="keywordtype">int</span> h = allegro_gl_display_info.h;
<a name="l01278"></a>01278 <span class="keywordtype">int</span> w = allegro_gl_display_info.w;
<a name="l01279"></a>01279
<a name="l01280"></a>01280 <span class="comment">/* This chunk is disabled by default because of problems on KDE</span>
<a name="l01281"></a>01281 <span class="comment"> desktops. */</span>
<a name="l01282"></a>01282 fc = get_config_string(uconvert_ascii(<span class="stringliteral">"graphics"</span>, tmp1),
<a name="l01283"></a>01283 uconvert_ascii(<span class="stringliteral">"force_centering"</span>, tmp2), NULL);
<a name="l01284"></a>01284 <span class="keywordflow">if</span> ((fc) && ((c = ugetc(fc)) != 0) && ((c == <span class="charliteral">'y'</span>) || (c == <span class="charliteral">'Y'</span>)
<a name="l01285"></a>01285 || (c == <span class="charliteral">'1'</span>))) {
<a name="l01286"></a>01286 <span class="comment">/* Hack: make the window fully visible and center cursor. */</span>
<a name="l01287"></a>01287 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0, 0, 0);
<a name="l01288"></a>01288 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0,
<a name="l01289"></a>01289 w - 1, 0);
<a name="l01290"></a>01290 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0,
<a name="l01291"></a>01291 0, h - 1);
<a name="l01292"></a>01292 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0,
<a name="l01293"></a>01293 w - 1, h - 1);
<a name="l01294"></a>01294 }
<a name="l01295"></a>01295 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0,
<a name="l01296"></a>01296 w / 2, h / 2);
<a name="l01297"></a>01297 XSync(_xwin.display, False);
<a name="l01298"></a>01298
<a name="l01299"></a>01299 <span class="comment">/* Grab keyboard and mouse. */</span>
<a name="l01300"></a>01300 <span class="keywordflow">if</span> (XGrabKeyboard(_xwin.display, _xwin.window, False, GrabModeAsync,
<a name="l01301"></a>01301 GrabModeAsync, CurrentTime) != GrabSuccess) {
<a name="l01302"></a>01302 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01303"></a>01303 get_config_text(<span class="stringliteral">"Can not grab keyboard"</span>));
<a name="l01304"></a>01304 XSetErrorHandler(old_x_error_handler);
<a name="l01305"></a>01305 <span class="keywordflow">return</span> -1;
<a name="l01306"></a>01306 }
<a name="l01307"></a>01307 _xwin.keyboard_grabbed = 1;
<a name="l01308"></a>01308
<a name="l01309"></a>01309 <span class="keywordflow">if</span> (XGrabPointer(_xwin.display, _xwin.window, False,
<a name="l01310"></a>01310 PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
<a name="l01311"></a>01311 GrabModeAsync, GrabModeAsync, _xwin.window, None, CurrentTime)
<a name="l01312"></a>01312 != GrabSuccess) {
<a name="l01313"></a>01313
<a name="l01314"></a>01314 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01315"></a>01315 get_config_text(<span class="stringliteral">"Can not grab mouse"</span>));
<a name="l01316"></a>01316 XSetErrorHandler(old_x_error_handler);
<a name="l01317"></a>01317 <span class="keywordflow">return</span> -1;
<a name="l01318"></a>01318 }
<a name="l01319"></a>01319 _xwin.mouse_grabbed = 1;
<a name="l01320"></a>01320 }
<a name="l01321"></a>01321
<a name="l01322"></a>01322
<a name="l01323"></a>01323 <span class="comment">/* Destroy current cursor (if any) */</span>
<a name="l01324"></a>01324 <span class="keywordflow">if</span> (_xwin.cursor != None) {
<a name="l01325"></a>01325 XUndefineCursor(_xwin.display, _xwin.window);
<a name="l01326"></a>01326 XFreeCursor(_xwin.display, _xwin.cursor);
<a name="l01327"></a>01327 }
<a name="l01328"></a>01328
<a name="l01329"></a>01329 {
<a name="l01330"></a>01330 <span class="comment">/* Create invisible X cursor. */</span>
<a name="l01331"></a>01331 Pixmap pixmap = XCreatePixmap(_xwin.display, _xwin.window, 1, 1, 1);
<a name="l01332"></a>01332 <span class="keywordflow">if</span> (pixmap != None) {
<a name="l01333"></a>01333 GC temp_gc;
<a name="l01334"></a>01334 XColor color;
<a name="l01335"></a>01335 XGCValues gcvalues;
<a name="l01336"></a>01336
<a name="l01337"></a>01337 <span class="keywordtype">int</span> gcmask = GCFunction | GCForeground | GCBackground;
<a name="l01338"></a>01338 gcvalues.function = GXcopy;
<a name="l01339"></a>01339 gcvalues.foreground = 0;
<a name="l01340"></a>01340 gcvalues.background = 0;
<a name="l01341"></a>01341 temp_gc = XCreateGC(_xwin.display, pixmap, gcmask, &gcvalues);
<a name="l01342"></a>01342 XDrawPoint(_xwin.display, pixmap, temp_gc, 0, 0);
<a name="l01343"></a>01343 XFreeGC(_xwin.display, temp_gc);
<a name="l01344"></a>01344 color.pixel = 0;
<a name="l01345"></a>01345 color.red = color.green = color.blue = 0;
<a name="l01346"></a>01346 color.flags = DoRed | DoGreen | DoBlue;
<a name="l01347"></a>01347 _xwin.cursor = XCreatePixmapCursor(_xwin.display, pixmap, pixmap,
<a name="l01348"></a>01348 &color, &color, 0, 0);
<a name="l01349"></a>01349 XDefineCursor(_xwin.display, _xwin.window, _xwin.cursor);
<a name="l01350"></a>01350 XFreePixmap(_xwin.display, pixmap);
<a name="l01351"></a>01351 }
<a name="l01352"></a>01352 <span class="keywordflow">else</span> {
<a name="l01353"></a>01353 _xwin.cursor = XCreateFontCursor(_xwin.display, _xwin.cursor_shape);
<a name="l01354"></a>01354 XDefineCursor(_xwin.display, _xwin.window, _xwin.cursor);
<a name="l01355"></a>01355 }
<a name="l01356"></a>01356 }
<a name="l01357"></a>01357
<a name="l01358"></a>01358 <span class="comment">/* Wait for the first exposure event. See comment in Allegro's</span>
<a name="l01359"></a>01359 <span class="comment"> * xwin.c about why no blocking X11 function is used.</span>
<a name="l01360"></a>01360 <span class="comment"> */</span>
<a name="l01361"></a>01361 <span class="keywordflow">while</span> (1) {
<a name="l01362"></a>01362 XEvent e;
<a name="l01363"></a>01363 <span class="keywordflow">if</span> (XCheckTypedEvent(_xwin.display, Expose, &e)) {
<a name="l01364"></a>01364 <span class="keywordflow">if</span> (e.xexpose.count == 0) <span class="keywordflow">break</span>;
<a name="l01365"></a>01365 }
<a name="l01366"></a>01366 rest(1);
<a name="l01367"></a>01367 }
<a name="l01368"></a>01368
<a name="l01369"></a>01369 <span class="keywordflow">return</span> 0;
<a name="l01370"></a>01370 }
<a name="l01371"></a>01371
<a name="l01372"></a>01372
<a name="l01373"></a>01373
<a name="l01374"></a>01374 <span class="keyword">static</span> BITMAP *allegro_gl_x_windowed_create_screen (GFX_DRIVER *drv, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> depth)
<a name="l01375"></a>01375 {
<a name="l01376"></a>01376 BITMAP *bmp;
<a name="l01377"></a>01377 <span class="keywordtype">int</span> is_linear = drv->linear;
<a name="l01378"></a>01378
<a name="l01379"></a>01379 drv->linear = 1;
<a name="l01380"></a>01380 bmp = _make_bitmap (w, h, 0, drv, depth, 0);
<a name="l01381"></a>01381 bmp->id = BMP_ID_VIDEO | BMP_ID_MASK;
<a name="l01382"></a>01382 drv->linear = is_linear;
<a name="l01383"></a>01383
<a name="l01384"></a>01384 <span class="keywordflow">if</span> (bmp == 0) {
<a name="l01385"></a>01385 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01386"></a>01386 get_config_text(<span class="stringliteral">"Not enough memory"</span>));
<a name="l01387"></a>01387 <span class="keywordflow">return</span> NULL;
<a name="l01388"></a>01388 }
<a name="l01389"></a>01389
<a name="l01390"></a>01390 drv->w = w;
<a name="l01391"></a>01391 drv->h = h;
<a name="l01392"></a>01392
<a name="l01393"></a>01393 <span class="keywordflow">return</span> bmp;
<a name="l01394"></a>01394 }
<a name="l01395"></a>01395
<a name="l01396"></a>01396
<a name="l01397"></a>01397
<a name="l01398"></a>01398 <span class="comment">/* decode_visual:</span>
<a name="l01399"></a>01399 <span class="comment"> * Used to read back the information in the visual. 0 = ok.</span>
<a name="l01400"></a>01400 <span class="comment"> */</span>
<a name="l01401"></a>01401 <span class="keyword">static</span> <span class="keywordtype">int</span> decode_visual (XVisualInfo *v, <span class="keyword">struct</span> allegro_gl_display_info *i)
<a name="l01402"></a>01402 {
<a name="l01403"></a>01403 <span class="keywordtype">int</span> rgba, buffer_size, use_gl, sbuffers, samples;
<a name="l01404"></a>01404
<a name="l01405"></a>01405 TRACE(PREFIX_I <span class="stringliteral">"decode_visual: Decoding:\n"</span>);
<a name="l01406"></a>01406 i->rmethod = 2;
<a name="l01407"></a>01407
<a name="l01408"></a>01408 <span class="comment">/* We can only support TrueColor and DirectColor visuals --</span>
<a name="l01409"></a>01409 <span class="comment"> * we only support RGBA mode */</span>
<a name="l01410"></a>01410 <span class="keywordflow">if</span> (v->class != TrueColor && v->class != DirectColor)
<a name="l01411"></a>01411 <span class="keywordflow">return</span> -1;
<a name="l01412"></a>01412
<a name="l01413"></a>01413 <span class="keywordflow">if</span> (glXGetConfig (_xwin.display, v, GLX_RGBA, &rgba)
<a name="l01414"></a>01414 || glXGetConfig (_xwin.display, v, GLX_USE_GL, &use_gl)
<a name="l01415"></a>01415 || glXGetConfig (_xwin.display, v, GLX_BUFFER_SIZE, &buffer_size)
<a name="l01416"></a>01416 || glXGetConfig (_xwin.display, v, GLX_RED_SIZE, &i->pixel_size.rgba.r)
<a name="l01417"></a>01417 || glXGetConfig (_xwin.display, v, GLX_GREEN_SIZE, &i->pixel_size.rgba.g)
<a name="l01418"></a>01418 || glXGetConfig (_xwin.display, v, GLX_BLUE_SIZE, &i->pixel_size.rgba.b)
<a name="l01419"></a>01419 || glXGetConfig (_xwin.display, v, GLX_ALPHA_SIZE, &i->pixel_size.rgba.a)
<a name="l01420"></a>01420 || glXGetConfig (_xwin.display, v, GLX_DOUBLEBUFFER, &i->doublebuffered)
<a name="l01421"></a>01421 || glXGetConfig (_xwin.display, v, GLX_STEREO, &i->stereo)
<a name="l01422"></a>01422 || glXGetConfig (_xwin.display, v, GLX_AUX_BUFFERS, &i->aux_buffers)
<a name="l01423"></a>01423 || glXGetConfig (_xwin.display, v, GLX_DEPTH_SIZE, &i->depth_size)
<a name="l01424"></a>01424 || glXGetConfig (_xwin.display, v, GLX_STENCIL_SIZE, &i->stencil_size)
<a name="l01425"></a>01425 || glXGetConfig (_xwin.display, v, GLX_ACCUM_RED_SIZE,
<a name="l01426"></a>01426 &i->accum_size.rgba.r)
<a name="l01427"></a>01427 || glXGetConfig (_xwin.display, v, GLX_ACCUM_GREEN_SIZE,
<a name="l01428"></a>01428 &i->accum_size.rgba.g)
<a name="l01429"></a>01429 || glXGetConfig (_xwin.display, v, GLX_ACCUM_BLUE_SIZE,
<a name="l01430"></a>01430 &i->accum_size.rgba.b)
<a name="l01431"></a>01431 || glXGetConfig (_xwin.display, v, GLX_ACCUM_ALPHA_SIZE,
<a name="l01432"></a>01432 &i->accum_size.rgba.a)) {
<a name="l01433"></a>01433 TRACE(PREFIX_I <span class="stringliteral">"x_create_window: Incomplete glX mode ...\n"</span>);
<a name="l01434"></a>01434 <span class="keywordflow">return</span> -1;
<a name="l01435"></a>01435 }
<a name="l01436"></a>01436
<a name="l01437"></a>01437 <span class="keywordflow">if</span> (!rgba) {
<a name="l01438"></a>01438 TRACE(PREFIX_I <span class="stringliteral">"x_create_window: Not RGBA mode\n"</span>);
<a name="l01439"></a>01439 <span class="keywordflow">return</span> -1;
<a name="l01440"></a>01440 }
<a name="l01441"></a>01441
<a name="l01442"></a>01442 <span class="keywordflow">if</span> (!use_gl) {
<a name="l01443"></a>01443 ustrzcpy (allegro_gl_error, AGL_ERROR_SIZE,
<a name="l01444"></a>01444 get_config_text(<span class="stringliteral">"OpenGL Unsupported"</span>));
<a name="l01445"></a>01445 <span class="keywordflow">return</span> -1;
<a name="l01446"></a>01446 }
<a name="l01447"></a>01447
<a name="l01448"></a>01448 i->r_shift = get_shift (v->red_mask);
<a name="l01449"></a>01449 i->g_shift = get_shift (v->green_mask);
<a name="l01450"></a>01450 i->b_shift = get_shift (v->blue_mask);
<a name="l01451"></a>01451 i->a_shift = 0;
<a name="l01452"></a>01452
<a name="l01453"></a>01453 <span class="comment">/* If we are going to need to setup a palette we need bit shifts */</span>
<a name="l01454"></a>01454 <span class="keywordflow">if</span> ((v->class == DirectColor)
<a name="l01455"></a>01455 && ((i->r_shift == -1) || (i->g_shift == -1) || (i->b_shift == -1))
<a name="l01456"></a>01456 && (i->pixel_size.rgba.r + i->pixel_size.rgba.g + i->pixel_size.rgba.b
<a name="l01457"></a>01457 <= 12)) {
<a name="l01458"></a>01458 <span class="comment">/* XXX <rohannessian> Report something here? */</span>
<a name="l01459"></a>01459 <span class="keywordflow">return</span> -1;
<a name="l01460"></a>01460 }
<a name="l01461"></a>01461
<a name="l01462"></a>01462 i->float_color = 0;
<a name="l01463"></a>01463 i->float_depth = 0;
<a name="l01464"></a>01464
<a name="l01465"></a>01465 i->colour_depth = 0;
<a name="l01466"></a>01466
<a name="l01467"></a>01467 <span class="keywordflow">if</span> (i->pixel_size.rgba.r == 3
<a name="l01468"></a>01468 && i->pixel_size.rgba.g == 3
<a name="l01469"></a>01469 && i->pixel_size.rgba.b == 2) {
<a name="l01470"></a>01470 i->colour_depth = 8;
<a name="l01471"></a>01471 }
<a name="l01472"></a>01472
<a name="l01473"></a>01473 <span class="keywordflow">if</span> (i->pixel_size.rgba.r == 5
<a name="l01474"></a>01474 && i->pixel_size.rgba.b == 5) {
<a name="l01475"></a>01475 <span class="keywordflow">if</span> (i->pixel_size.rgba.g == 5) {
<a name="l01476"></a>01476 i->colour_depth = 15;
<a name="l01477"></a>01477 }
<a name="l01478"></a>01478 <span class="keywordflow">if</span> (i->pixel_size.rgba.g == 6) {
<a name="l01479"></a>01479 i->colour_depth = 16;
<a name="l01480"></a>01480 }
<a name="l01481"></a>01481 }
<a name="l01482"></a>01482
<a name="l01483"></a>01483 <span class="keywordflow">if</span> (i->pixel_size.rgba.r == 8
<a name="l01484"></a>01484 && i->pixel_size.rgba.g == 8
<a name="l01485"></a>01485 && i->pixel_size.rgba.b == 8) {
<a name="l01486"></a>01486 <span class="keywordflow">if</span> (i->pixel_size.rgba.a == 0) {
<a name="l01487"></a>01487 i->colour_depth = 24;
<a name="l01488"></a>01488 }
<a name="l01489"></a>01489 <span class="keywordflow">if</span> (i->pixel_size.rgba.a == 8) {
<a name="l01490"></a>01490 i->colour_depth = 32;
<a name="l01491"></a>01491 <span class="comment">/* small hack that tries to guess alpha shifting */</span>
<a name="l01492"></a>01492 i->a_shift = 48 - i->r_shift - i->g_shift - i->b_shift;
<a name="l01493"></a>01493 }
<a name="l01494"></a>01494 }
<a name="l01495"></a>01495
<a name="l01496"></a>01496 i->allegro_format = (i->colour_depth != 0)
<a name="l01497"></a>01497 && (i->g_shift == i->pixel_size.rgba.b)
<a name="l01498"></a>01498 && (i->r_shift * i->b_shift == 0)
<a name="l01499"></a>01499 && (i->r_shift + i->b_shift
<a name="l01500"></a>01500 == i->pixel_size.rgba.b + i->pixel_size.rgba.g);
<a name="l01501"></a>01501
<a name="l01502"></a>01502 <span class="keywordflow">if</span> (glXGetConfig(_xwin.display, v, GLX_SAMPLE_BUFFERS, &sbuffers)
<a name="l01503"></a>01503 == GLX_BAD_ATTRIBUTE) {
<a name="l01504"></a>01504 <span class="comment">/* Multisample extension is not supported */</span>
<a name="l01505"></a>01505 i->sample_buffers = 0;
<a name="l01506"></a>01506 }
<a name="l01507"></a>01507 <span class="keywordflow">else</span> {
<a name="l01508"></a>01508 i->sample_buffers = sbuffers;
<a name="l01509"></a>01509 }
<a name="l01510"></a>01510 <span class="keywordflow">if</span> (glXGetConfig(_xwin.display, v, GLX_SAMPLES, &samples)
<a name="l01511"></a>01511 == GLX_BAD_ATTRIBUTE) {
<a name="l01512"></a>01512 <span class="comment">/* Multisample extension is not supported */</span>
<a name="l01513"></a>01513 i->samples = 0;
<a name="l01514"></a>01514 }
<a name="l01515"></a>01515 <span class="keywordflow">else</span> {
<a name="l01516"></a>01516 i->samples = samples;
<a name="l01517"></a>01517 }
<a name="l01518"></a>01518
<a name="l01519"></a>01519
<a name="l01520"></a>01520 TRACE(PREFIX_I <span class="stringliteral">"Color Depth: %i\n"</span>, buffer_size);
<a name="l01521"></a>01521 TRACE(PREFIX_I <span class="stringliteral">"RGBA: %i.%i.%i.%i\n"</span>, i->pixel_size.rgba.r, i->pixel_size.rgba.g,
<a name="l01522"></a>01522 i->pixel_size.rgba.b, i->pixel_size.rgba.a);
<a name="l01523"></a>01523 TRACE(PREFIX_I <span class="stringliteral">"Accum: %i.%i.%i.%i\n"</span>, i->accum_size.rgba.r, i->accum_size.rgba.g,
<a name="l01524"></a>01524 i->accum_size.rgba.b, i->accum_size.rgba.a);
<a name="l01525"></a>01525 TRACE(PREFIX_I <span class="stringliteral">"DblBuf: %i Zbuf: %i Stereo: %i Aux: %i Stencil: %i\n"</span>,
<a name="l01526"></a>01526 i->doublebuffered, i->depth_size, i->stereo,
<a name="l01527"></a>01527 i->aux_buffers, i->stencil_size);
<a name="l01528"></a>01528 TRACE(PREFIX_I <span class="stringliteral">"Shift: %i.%i.%i.%i\n"</span>, i->r_shift, i->g_shift, i->b_shift,
<a name="l01529"></a>01529 i->a_shift);
<a name="l01530"></a>01530 TRACE(PREFIX_I <span class="stringliteral">"Sample Buffers: %i Samples: %i\n"</span>, i->sample_buffers, i->samples);
<a name="l01531"></a>01531 TRACE(PREFIX_I <span class="stringliteral">"Decoded bpp: %i\n"</span>, i->colour_depth);
<a name="l01532"></a>01532
<a name="l01533"></a>01533 <span class="keywordflow">return</span> 0;
<a name="l01534"></a>01534 }
<a name="l01535"></a>01535
<a name="l01536"></a>01536
<a name="l01537"></a>01537
<a name="l01538"></a>01538 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l01539"></a>01539 <span class="preprocessor"></span><span class="comment">/* allegro_gl_x_fetch_mode_list:</span>
<a name="l01540"></a>01540 <span class="comment"> * Generates a list of valid video modes (made after </span>
<a name="l01541"></a>01541 <span class="comment"> * _xvidmode_private_fetch_mode_list of Allegro)</span>
<a name="l01542"></a>01542 <span class="comment"> */</span>
<a name="l01543"></a>01543 <span class="keyword">static</span> GFX_MODE_LIST* allegro_gl_x_fetch_mode_list(<span class="keywordtype">void</span>)
<a name="l01544"></a>01544 {
<a name="l01545"></a>01545 <span class="keywordtype">int</span> num_modes = 0;
<a name="l01546"></a>01546 XF86VidModeModeInfo **modesinfo = NULL;
<a name="l01547"></a>01547 GFX_MODE_LIST *mode_list;
<a name="l01548"></a>01548 <span class="keywordtype">int</span> i;
<a name="l01549"></a>01549
<a name="l01550"></a>01550 XLOCK();
<a name="l01551"></a>01551
<a name="l01552"></a>01552 <span class="keywordflow">if</span> (get_xf86_modes(&modesinfo, &num_modes)) {
<a name="l01553"></a>01553 XUNLOCK();
<a name="l01554"></a>01554 <span class="keywordflow">return</span> NULL;
<a name="l01555"></a>01555 }
<a name="l01556"></a>01556
<a name="l01557"></a>01557 <span class="comment">/* Allocate space for mode list. */</span>
<a name="l01558"></a>01558 mode_list = malloc(<span class="keyword">sizeof</span>(GFX_MODE_LIST));
<a name="l01559"></a>01559 <span class="keywordflow">if</span> (!mode_list) {
<a name="l01560"></a>01560 free_modelines(modesinfo, num_modes);
<a name="l01561"></a>01561 XUNLOCK();
<a name="l01562"></a>01562 <span class="keywordflow">return</span> NULL;
<a name="l01563"></a>01563 }
<a name="l01564"></a>01564
<a name="l01565"></a>01565 mode_list->mode = malloc(<span class="keyword">sizeof</span>(GFX_MODE) * (num_modes + 1));
<a name="l01566"></a>01566 <span class="keywordflow">if</span> (!mode_list->mode) {
<a name="l01567"></a>01567 free(mode_list);
<a name="l01568"></a>01568 free_modelines(modesinfo, num_modes);
<a name="l01569"></a>01569 XUNLOCK();
<a name="l01570"></a>01570 <span class="keywordflow">return</span> NULL;
<a name="l01571"></a>01571 }
<a name="l01572"></a>01572
<a name="l01573"></a>01573 <span class="comment">/* Fill in mode list. */</span>
<a name="l01574"></a>01574 <span class="keywordflow">for</span> (i = 0; i < num_modes; i++) {
<a name="l01575"></a>01575 mode_list->mode[i].width = modesinfo[i]->hdisplay;
<a name="l01576"></a>01576 mode_list->mode[i].height = modesinfo[i]->vdisplay;
<a name="l01577"></a>01577 <span class="comment">/* Since XF86VidMode can not change the color depth of</span>
<a name="l01578"></a>01578 <span class="comment"> * the screen, there is no need to define modes for other</span>
<a name="l01579"></a>01579 <span class="comment"> * color depth than the desktop's.</span>
<a name="l01580"></a>01580 <span class="comment"> */</span>
<a name="l01581"></a>01581 mode_list->mode[i].bpp = desktop_color_depth();
<a name="l01582"></a>01582 }
<a name="l01583"></a>01583
<a name="l01584"></a>01584 mode_list->mode[num_modes].width = 0;
<a name="l01585"></a>01585 mode_list->mode[num_modes].height = 0;
<a name="l01586"></a>01586 mode_list->mode[num_modes].bpp = 0;
<a name="l01587"></a>01587 mode_list->num_modes = num_modes;
<a name="l01588"></a>01588
<a name="l01589"></a>01589 free_modelines(modesinfo, num_modes);
<a name="l01590"></a>01590
<a name="l01591"></a>01591 XUNLOCK();
<a name="l01592"></a>01592 <span class="keywordflow">return</span> mode_list;
<a name="l01593"></a>01593 }
<a name="l01594"></a>01594 <span class="preprocessor">#endif</span>
<a name="l01595"></a>01595 <span class="preprocessor"></span>
<a name="l01596"></a>01596
<a name="l01597"></a>01597
<a name="l01598"></a>01598 <span class="comment">/* allegro_gl_x_vsync:</span>
<a name="l01599"></a>01599 <span class="comment"> * Wait for a vertical retrace. GLX_SGI_video_sync is needed.</span>
<a name="l01600"></a>01600 <span class="comment"> */</span>
<a name="l01601"></a>01601 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_vsync(<span class="keywordtype">void</span>)
<a name="l01602"></a>01602 {
<a name="l01603"></a>01603 XLOCK();
<a name="l01604"></a>01604 <span class="keywordflow">if</span> (allegro_gl_extensions_GLX.SGI_video_sync) {
<a name="l01605"></a>01605 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> count;
<a name="l01606"></a>01606
<a name="l01607"></a>01607 glXGetVideoSyncSGI(&count);
<a name="l01608"></a>01608 glXWaitVideoSyncSGI(2, (count+1) & 1, &count);
<a name="l01609"></a>01609 }
<a name="l01610"></a>01610 XUNLOCK();
<a name="l01611"></a>01611 }
<a name="l01612"></a>01612
<a name="l01613"></a>01613
<a name="l01614"></a>01614
<a name="l01615"></a>01615 <span class="comment">/******************************/</span>
<a name="l01616"></a>01616 <span class="comment">/* AllegroGL driver functions */</span>
<a name="l01617"></a>01617 <span class="comment">/******************************/</span>
<a name="l01618"></a>01618
<a name="l01619"></a>01619 <span class="comment">/* flip:</span>
<a name="l01620"></a>01620 <span class="comment"> * Does a page flip / double buffer copy / whatever it really is.</span>
<a name="l01621"></a>01621 <span class="comment"> */</span>
<a name="l01622"></a>01622 <span class="keyword">static</span> <span class="keywordtype">void</span> flip (<span class="keywordtype">void</span>)
<a name="l01623"></a>01623 {
<a name="l01624"></a>01624 XLOCK();
<a name="l01625"></a>01625 <span class="keywordflow">if</span> (_glxwin.use_glx_window)
<a name="l01626"></a>01626 glXSwapBuffers (_xwin.display, _glxwin.window);
<a name="l01627"></a>01627 <span class="keywordflow">else</span>
<a name="l01628"></a>01628 glXSwapBuffers (_xwin.display, _xwin.window);
<a name="l01629"></a>01629 XUNLOCK();
<a name="l01630"></a>01630 }
<a name="l01631"></a>01631
<a name="l01632"></a>01632
<a name="l01633"></a>01633
<a name="l01634"></a>01634 <span class="comment">/* gl_on, gl_off:</span>
<a name="l01635"></a>01635 <span class="comment"> * Switches to/from GL mode.</span>
<a name="l01636"></a>01636 <span class="comment"> */</span>
<a name="l01637"></a>01637 <span class="keyword">static</span> <span class="keywordtype">void</span> gl_on (<span class="keywordtype">void</span>)
<a name="l01638"></a>01638 {
<a name="l01639"></a>01639 <span class="preprocessor">#ifdef OLD_ALLEGRO</span>
<a name="l01640"></a>01640 <span class="preprocessor"></span> DISABLE();
<a name="l01641"></a>01641 <span class="preprocessor">#endif</span>
<a name="l01642"></a>01642 <span class="preprocessor"></span>}
<a name="l01643"></a>01643
<a name="l01644"></a>01644
<a name="l01645"></a>01645
<a name="l01646"></a>01646 <span class="keyword">static</span> <span class="keywordtype">void</span> gl_off (<span class="keywordtype">void</span>)
<a name="l01647"></a>01647 {
<a name="l01648"></a>01648 <span class="preprocessor">#ifdef OLD_ALLEGRO</span>
<a name="l01649"></a>01649 <span class="preprocessor"></span> ENABLE();
<a name="l01650"></a>01650 _xwin_handle_input();
<a name="l01651"></a>01651 <span class="preprocessor">#endif</span>
<a name="l01652"></a>01652 <span class="preprocessor"></span>}
<a name="l01653"></a>01653
<a name="l01654"></a>01654
<a name="l01655"></a>01655
<a name="l01656"></a>01656 <span class="comment">/*****************/</span>
<a name="l01657"></a>01657 <span class="comment">/* Driver struct */</span>
<a name="l01658"></a>01658 <span class="comment">/*****************/</span>
<a name="l01659"></a>01659
<a name="l01660"></a>01660 <span class="keyword">static</span> <span class="keyword">struct </span>allegro_gl_driver allegro_gl_x = {
<a name="l01661"></a>01661 flip,
<a name="l01662"></a>01662 gl_on,
<a name="l01663"></a>01663 gl_off,
<a name="l01664"></a>01664 NULL
<a name="l01665"></a>01665 };
<a name="l01666"></a>01666
</pre></div></div>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><b>x.c</b> </li>
<li class="footer">Generated on Thu May 19 2011 23:20:20 for AllegroGL by 
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.3 </li>
</ul>
</div>
</body>
</html>
|
