summaryrefslogtreecommitdiff
path: root/fb/fb.h
blob: b869d122c866dc6d076e501820c1190a24d0e81c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
/*
 *
 * Copyright © 1998 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _FB_H_
#define _FB_H_

#include <X11/X.h>
#include <pixman.h>

#include "scrnintstr.h"
#include "pixmap.h"
#include "pixmapstr.h"
#include "region.h"
#include "gcstruct.h"
#include "colormap.h"
#include "miscstruct.h"
#include "servermd.h"
#include "windowstr.h"
#include "privates.h"
#include "mi.h"
#include "migc.h"
#include "picturestr.h"

#ifdef FB_ACCESS_WRAPPER

#include "wfbrename.h"
#define FBPREFIX(x) wfb##x
#define WRITE(ptr, val) ((*wfbWriteMemory)((ptr), (val), sizeof(*(ptr))))
#define READ(ptr) ((*wfbReadMemory)((ptr), sizeof(*(ptr))))

#define MEMCPY_WRAPPED(dst, src, size) do {                       \
    size_t _i;                                                    \
    CARD8 *_dst = (CARD8*)(dst), *_src = (CARD8*)(src);           \
    for(_i = 0; _i < size; _i++) {                                \
        WRITE(_dst +_i, READ(_src + _i));                         \
    }                                                             \
} while(0)

#define MEMSET_WRAPPED(dst, val, size) do {                       \
    size_t _i;                                                    \
    CARD8 *_dst = (CARD8*)(dst);                                  \
    for(_i = 0; _i < size; _i++) {                                \
        WRITE(_dst +_i, (val));                                   \
    }                                                             \
} while(0)

#else

#define FBPREFIX(x) fb##x
#define WRITE(ptr, val) (*(ptr) = (val))
#define READ(ptr) (*(ptr))
#define MEMCPY_WRAPPED(dst, src, size) memcpy((dst), (src), (size))
#define MEMSET_WRAPPED(dst, val, size) memset((dst), (val), (size))

#endif

/*
 * This single define controls the basic size of data manipulated
 * by this software; it must be log2(sizeof (FbBits) * 8)
 */

#ifndef FB_SHIFT
#define FB_SHIFT    LOG2_BITMAP_PAD
#endif

#if FB_SHIFT < LOG2_BITMAP_PAD
error FB_SHIFT must be >= LOG2_BITMAP_PAD
#endif
#define FB_UNIT	    (1 << FB_SHIFT)
#define FB_HALFUNIT (1 << (FB_SHIFT-1))
#define FB_MASK	    (FB_UNIT - 1)
#define FB_ALLONES  ((FbBits) -1)
#if GLYPHPADBYTES != 4
#error "GLYPHPADBYTES must be 4"
#endif
/* for driver compat - intel UXA needs the second one at least */
#define FB_24BIT
#define FB_24_32BIT
#define FB_STIP_SHIFT	LOG2_BITMAP_PAD
#define FB_STIP_UNIT	(1 << FB_STIP_SHIFT)
#define FB_STIP_MASK	(FB_STIP_UNIT - 1)
#define FB_STIP_ALLONES	((FbStip) -1)
#define FB_STIP_ODDSTRIDE(s)	(((s) & (FB_MASK >> FB_STIP_SHIFT)) != 0)
#define FB_STIP_ODDPTR(p)	((((long) (p)) & (FB_MASK >> 3)) != 0)
#define FbStipStrideToBitsStride(s) (((s) >> (FB_SHIFT - FB_STIP_SHIFT)))
#define FbBitsStrideToStipStride(s) (((s) << (FB_SHIFT - FB_STIP_SHIFT)))
#define FbFullMask(n)   ((n) == FB_UNIT ? FB_ALLONES : ((((FbBits) 1) << n) - 1))
#if FB_SHIFT == 6
#ifdef WIN32
typedef unsigned __int64 FbBits;
#else
#if defined(__alpha__) || defined(__alpha) || \
      defined(ia64) || defined(__ia64__) || \
      defined(__sparc64__) || defined(_LP64) || \
      defined(__s390x__) || \
      defined(amd64) || defined (__amd64__) || \
      defined (__powerpc64__)
typedef unsigned long FbBits;
#else
typedef unsigned long long FbBits;
#endif
#endif
#endif

#if FB_SHIFT == 5
typedef CARD32 FbBits;
#endif

#if FB_SHIFT == 4
typedef CARD16 FbBits;
#endif

#if LOG2_BITMAP_PAD == FB_SHIFT
typedef FbBits FbStip;
#else
#if LOG2_BITMAP_PAD == 5
typedef CARD32 FbStip;
#endif
#endif

typedef int FbStride;

#ifdef FB_DEBUG
extern _X_EXPORT void fbValidateDrawable(DrawablePtr d);
extern _X_EXPORT void fbInitializeDrawable(DrawablePtr d);
extern _X_EXPORT void fbSetBits(FbStip * bits, int stride, FbStip data);

#define FB_HEAD_BITS   (FbStip) (0xbaadf00d)
#define FB_TAIL_BITS   (FbStip) (0xbaddf0ad)
#else
#define fbValidateDrawable(d)
#define fdInitializeDrawable(d)
#endif

#include "fbrop.h"

#if BITMAP_BIT_ORDER == LSBFirst
#define FbScrLeft(x,n)	((x) >> (n))
#define FbScrRight(x,n)	((x) << (n))
/* #define FbLeftBits(x,n)	((x) & ((((FbBits) 1) << (n)) - 1)) */
#define FbLeftStipBits(x,n) ((x) & ((((FbStip) 1) << (n)) - 1))
#define FbStipMoveLsb(x,s,n)	(FbStipRight (x,(s)-(n)))
#define FbPatternOffsetBits	0
#else
#define FbScrLeft(x,n)	((x) << (n))
#define FbScrRight(x,n)	((x) >> (n))
/* #define FbLeftBits(x,n)	((x) >> (FB_UNIT - (n))) */
#define FbLeftStipBits(x,n) ((x) >> (FB_STIP_UNIT - (n)))
#define FbStipMoveLsb(x,s,n)	(x)
#define FbPatternOffsetBits	(sizeof (FbBits) - 1)
#endif

#include "micoord.h"

#define FbStipLeft(x,n)	FbScrLeft(x,n)
#define FbStipRight(x,n) FbScrRight(x,n)

#define FbRotLeft(x,n)	FbScrLeft(x,n) | (n ? FbScrRight(x,FB_UNIT-n) : 0)
#define FbRotRight(x,n)	FbScrRight(x,n) | (n ? FbScrLeft(x,FB_UNIT-n) : 0)

#define FbRotStipLeft(x,n)  FbStipLeft(x,n) | (n ? FbStipRight(x,FB_STIP_UNIT-n) : 0)
#define FbRotStipRight(x,n)  FbStipRight(x,n) | (n ? FbStipLeft(x,FB_STIP_UNIT-n) : 0)

#define FbLeftMask(x)	    ( ((x) & FB_MASK) ? \
			     FbScrRight(FB_ALLONES,(x) & FB_MASK) : 0)
#define FbRightMask(x)	    ( ((FB_UNIT - (x)) & FB_MASK) ? \
			     FbScrLeft(FB_ALLONES,(FB_UNIT - (x)) & FB_MASK) : 0)

#define FbLeftStipMask(x)   ( ((x) & FB_STIP_MASK) ? \
			     FbStipRight(FB_STIP_ALLONES,(x) & FB_STIP_MASK) : 0)
#define FbRightStipMask(x)  ( ((FB_STIP_UNIT - (x)) & FB_STIP_MASK) ? \
			     FbScrLeft(FB_STIP_ALLONES,(FB_STIP_UNIT - (x)) & FB_STIP_MASK) : 0)

#define FbBitsMask(x,w)	(FbScrRight(FB_ALLONES,(x) & FB_MASK) & \
			 FbScrLeft(FB_ALLONES,(FB_UNIT - ((x) + (w))) & FB_MASK))

#define FbStipMask(x,w)	(FbStipRight(FB_STIP_ALLONES,(x) & FB_STIP_MASK) & \
			 FbStipLeft(FB_STIP_ALLONES,(FB_STIP_UNIT - ((x)+(w))) & FB_STIP_MASK))

#define FbMaskBits(x,w,l,n,r) { \
    n = (w); \
    r = FbRightMask((x)+n); \
    l = FbLeftMask(x); \
    if (l) { \
	n -= FB_UNIT - ((x) & FB_MASK); \
	if (n < 0) { \
	    n = 0; \
	    l &= r; \
	    r = 0; \
	} \
    } \
    n >>= FB_SHIFT; \
}

#define FbByteMaskInvalid   0x10

#define FbPatternOffset(o,t)  ((o) ^ (FbPatternOffsetBits & ~(sizeof (t) - 1)))

#define FbPtrOffset(p,o,t)		((t *) ((CARD8 *) (p) + (o)))
#define FbSelectPatternPart(xor,o,t)	((xor) >> (FbPatternOffset (o,t) << 3))
#define FbStorePart(dst,off,t,xor)	(WRITE(FbPtrOffset(dst,off,t), \
					 FbSelectPart(xor,off,t)))
#ifndef FbSelectPart
#define FbSelectPart(x,o,t) FbSelectPatternPart(x,o,t)
#endif

#define FbMaskBitsBytes(x,w,copy,l,lb,n,r,rb) { \
    n = (w); \
    lb = 0; \
    rb = 0; \
    r = FbRightMask((x)+n); \
    if (r) { \
	/* compute right byte length */ \
	if ((copy) && (((x) + n) & 7) == 0) { \
	    rb = (((x) + n) & FB_MASK) >> 3; \
	} else { \
	    rb = FbByteMaskInvalid; \
	} \
    } \
    l = FbLeftMask(x); \
    if (l) { \
	/* compute left byte length */ \
	if ((copy) && ((x) & 7) == 0) { \
	    lb = ((x) & FB_MASK) >> 3; \
	} else { \
	    lb = FbByteMaskInvalid; \
	} \
	/* subtract out the portion painted by leftMask */ \
	n -= FB_UNIT - ((x) & FB_MASK); \
	if (n < 0) { \
	    if (lb != FbByteMaskInvalid) { \
		if (rb == FbByteMaskInvalid) { \
		    lb = FbByteMaskInvalid; \
		} else if (rb) { \
		    lb |= (rb - lb) << (FB_SHIFT - 3); \
		    rb = 0; \
		} \
	    } \
	    n = 0; \
	    l &= r; \
	    r = 0; \
	}\
    } \
    n >>= FB_SHIFT; \
}

#if FB_SHIFT == 6
#define FbDoLeftMaskByteRRop6Cases(dst,xor) \
    case (sizeof (FbBits) - 7) | (1 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 7,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 7) | (2 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 7,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 7) | (3 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 7,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	break; \
    case (sizeof (FbBits) - 7) | (4 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 7,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 7) | (5 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 7,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD16,xor); \
	break; \
    case (sizeof (FbBits) - 7) | (6 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 7,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 2,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 7): \
	FbStorePart(dst,sizeof (FbBits) - 7,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD32,xor); \
	break; \
    case (sizeof (FbBits) - 6) | (1 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 6) | (2 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	break; \
    case (sizeof (FbBits) - 6) | (3 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 6) | (4 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD16,xor); \
	break; \
    case (sizeof (FbBits) - 6) | (5 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 2,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 6): \
	FbStorePart(dst,sizeof (FbBits) - 6,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD32,xor); \
	break; \
    case (sizeof (FbBits) - 5) | (1 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 5,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 5) | (2 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 5,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 5) | (3 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 5,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD16,xor); \
	break; \
    case (sizeof (FbBits) - 5) | (4 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 5,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 2,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 5): \
	FbStorePart(dst,sizeof (FbBits) - 5,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD32,xor); \
	break; \
    case (sizeof (FbBits) - 4) | (1 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 4) | (2 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD16,xor); \
	break; \
    case (sizeof (FbBits) - 4) | (3 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD16,xor); \
	FbStorePart(dst,sizeof (FbBits) - 2,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 4): \
	FbStorePart(dst,sizeof (FbBits) - 4,CARD32,xor); \
	break;

#define FbDoRightMaskByteRRop6Cases(dst,xor) \
    case 4: \
	FbStorePart(dst,0,CARD32,xor); \
	break; \
    case 5: \
	FbStorePart(dst,0,CARD32,xor); \
	FbStorePart(dst,4,CARD8,xor); \
	break; \
    case 6: \
	FbStorePart(dst,0,CARD32,xor); \
	FbStorePart(dst,4,CARD16,xor); \
	break; \
    case 7: \
	FbStorePart(dst,0,CARD32,xor); \
	FbStorePart(dst,4,CARD16,xor); \
	FbStorePart(dst,6,CARD8,xor); \
	break;
#else
#define FbDoLeftMaskByteRRop6Cases(dst,xor)
#define FbDoRightMaskByteRRop6Cases(dst,xor)
#endif

#define FbDoLeftMaskByteRRop(dst,lb,l,and,xor) { \
    switch (lb) { \
    FbDoLeftMaskByteRRop6Cases(dst,xor) \
    case (sizeof (FbBits) - 3) | (1 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 3,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 3) | (2 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 3,CARD8,xor); \
	FbStorePart(dst,sizeof (FbBits) - 2,CARD8,xor); \
	break; \
    case (sizeof (FbBits) - 2) | (1 << (FB_SHIFT - 3)): \
	FbStorePart(dst,sizeof (FbBits) - 2,CARD8,xor); \
	break; \
    case sizeof (FbBits) - 3: \
	FbStorePart(dst,sizeof (FbBits) - 3,CARD8,xor); \
    case sizeof (FbBits) - 2: \
	FbStorePart(dst,sizeof (FbBits) - 2,CARD16,xor); \
	break; \
    case sizeof (FbBits) - 1: \
	FbStorePart(dst,sizeof (FbBits) - 1,CARD8,xor); \
	break; \
    default: \
	WRITE(dst, FbDoMaskRRop(READ(dst), and, xor, l)); \
	break; \
    } \
}

#define FbDoRightMaskByteRRop(dst,rb,r,and,xor) { \
    switch (rb) { \
    case 1: \
	FbStorePart(dst,0,CARD8,xor); \
	break; \
    case 2: \
	FbStorePart(dst,0,CARD16,xor); \
	break; \
    case 3: \
	FbStorePart(dst,0,CARD16,xor); \
	FbStorePart(dst,2,CARD8,xor); \
	break; \
    FbDoRightMaskByteRRop6Cases(dst,xor) \
    default: \
	WRITE(dst, FbDoMaskRRop (READ(dst), and, xor, r)); \
    } \
}

#define FbMaskStip(x,w,l,n,r) { \
    n = (w); \
    r = FbRightStipMask((x)+n); \
    l = FbLeftStipMask(x); \
    if (l) { \
	n -= FB_STIP_UNIT - ((x) & FB_STIP_MASK); \
	if (n < 0) { \
	    n = 0; \
	    l &= r; \
	    r = 0; \
	} \
    } \
    n >>= FB_STIP_SHIFT; \
}

/*
 * These macros are used to transparently stipple
 * in copy mode; the expected usage is with 'n' constant
 * so all of the conditional parts collapse into a minimal
 * sequence of partial word writes
 *
 * 'n' is the bytemask of which bytes to store, 'a' is the address
 * of the FbBits base unit, 'o' is the offset within that unit
 *
 * The term "lane" comes from the hardware term "byte-lane" which
 */

#define FbLaneCase1(n,a,o)						\
    if ((n) == 0x01) {							\
	WRITE((CARD8 *) ((a)+FbPatternOffset(o,CARD8)), fgxor);		\
    }

#define FbLaneCase2(n,a,o)						\
    if ((n) == 0x03) {							\
	WRITE((CARD16 *) ((a)+FbPatternOffset(o,CARD16)), fgxor);	\
    } else {								\
	FbLaneCase1((n)&1,a,o)						\
	FbLaneCase1((n)>>1,a,(o)+1)					\
    }

#define FbLaneCase4(n,a,o)						\
    if ((n) == 0x0f) {							\
	WRITE((CARD32 *) ((a)+FbPatternOffset(o,CARD32)), fgxor);	\
    } else {								\
	FbLaneCase2((n)&3,a,o)						\
	FbLaneCase2((n)>>2,a,(o)+2)					\
    }

#define FbLaneCase8(n,a,o)						\
    if ((n) == 0x0ff) {							\
	*(FbBits *) ((a)+(o)) = fgxor;					\
    } else {								\
	FbLaneCase4((n)&15,a,o)						\
	FbLaneCase4((n)>>4,a,(o)+4)					\
    }

#if FB_SHIFT == 6
#define FbLaneCase(n,a)   FbLaneCase8(n,(CARD8 *) (a),0)
#endif

#if FB_SHIFT == 5
#define FbLaneCase(n,a)   FbLaneCase4(n,(CARD8 *) (a),0)
#endif

/* Rotate a filled pixel value to the specified alignement */
#define FbRot24(p,b)	    (FbScrRight(p,b) | FbScrLeft(p,24-(b)))
#define FbRot24Stip(p,b)    (FbStipRight(p,b) | FbStipLeft(p,24-(b)))

/* step a filled pixel value to the next/previous FB_UNIT alignment */
#define FbNext24Pix(p)	(FbRot24(p,(24-FB_UNIT%24)))
#define FbPrev24Pix(p)	(FbRot24(p,FB_UNIT%24))
#define FbNext24Stip(p)	(FbRot24(p,(24-FB_STIP_UNIT%24)))
#define FbPrev24Stip(p)	(FbRot24(p,FB_STIP_UNIT%24))

/* step a rotation value to the next/previous rotation value */
#if FB_UNIT == 64
#define FbNext24Rot(r)        ((r) == 16 ? 0 : (r) + 8)
#define FbPrev24Rot(r)        ((r) == 0 ? 16 : (r) - 8)

#if IMAGE_BYTE_ORDER == MSBFirst
#define FbFirst24Rot(x)		(((x) + 8) % 24)
#else
#define FbFirst24Rot(x)		((x) % 24)
#endif

#endif

#if FB_UNIT == 32
#define FbNext24Rot(r)        ((r) == 0 ? 16 : (r) - 8)
#define FbPrev24Rot(r)        ((r) == 16 ? 0 : (r) + 8)

#if IMAGE_BYTE_ORDER == MSBFirst
#define FbFirst24Rot(x)		(((x) + 16) % 24)
#else
#define FbFirst24Rot(x)		((x) % 24)
#endif
#endif

#define FbNext24RotStip(r)        ((r) == 0 ? 16 : (r) - 8)
#define FbPrev24RotStip(r)        ((r) == 16 ? 0 : (r) + 8)

/* Whether 24-bit specific code is needed for this filled pixel value */
#define FbCheck24Pix(p)	((p) == FbNext24Pix(p))

/* Macros for dealing with dashing */

#define FbDashDeclare	\
    unsigned char	*__dash, *__firstDash, *__lastDash

#define FbDashInit(pGC,pPriv,dashOffset,dashlen,even) {	    \
    (even) = TRUE;					    \
    __firstDash = (pGC)->dash;				    \
    __lastDash = __firstDash + (pGC)->numInDashList;	    \
    (dashOffset) %= (pPriv)->dashLength;		    \
							    \
    __dash = __firstDash;				    \
    while ((dashOffset) >= ((dashlen) = *__dash))	    \
    {							    \
	(dashOffset) -= (dashlen);			    \
	(even) = 1-(even);				    \
	if (++__dash == __lastDash)			    \
	    __dash = __firstDash;			    \
    }							    \
    (dashlen) -= (dashOffset);				    \
}

#define FbDashNext(dashlen) {				    \
    if (++__dash == __lastDash)				    \
	__dash = __firstDash;				    \
    (dashlen) = *__dash;				    \
}

/* as numInDashList is always even, this case can skip a test */

#define FbDashNextEven(dashlen) {			    \
    (dashlen) = *++__dash;				    \
}

#define FbDashNextOdd(dashlen)	FbDashNext(dashlen)

#define FbDashStep(dashlen,even) {			    \
    if (!--(dashlen)) {					    \
	FbDashNext(dashlen);				    \
	(even) = 1-(even);				    \
    }							    \
}

extern _X_EXPORT const GCOps fbGCOps;
extern _X_EXPORT const GCFuncs fbGCFuncs;

/* Framebuffer access wrapper */
typedef FbBits(*ReadMemoryProcPtr) (const void *src, int size);
typedef void (*WriteMemoryProcPtr) (void *dst, FbBits value, int size);
typedef void (*SetupWrapProcPtr) (ReadMemoryProcPtr * pRead,
                                  WriteMemoryProcPtr * pWrite,
                                  DrawablePtr pDraw);
typedef void (*FinishWrapProcPtr) (DrawablePtr pDraw);

#ifdef FB_ACCESS_WRAPPER

#define fbPrepareAccess(pDraw) \
	fbGetScreenPrivate((pDraw)->pScreen)->setupWrap( \
		&wfbReadMemory, \
		&wfbWriteMemory, \
		(pDraw))
#define fbFinishAccess(pDraw) \
	fbGetScreenPrivate((pDraw)->pScreen)->finishWrap(pDraw)

#else

#define fbPrepareAccess(pPix)
#define fbFinishAccess(pDraw)

#endif

extern _X_EXPORT DevPrivateKey
fbGetScreenPrivateKey(void);

/* private field of a screen */
typedef struct {
    unsigned char win32bpp;     /* window bpp for 32-bpp images */
    unsigned char pix32bpp;     /* pixmap bpp for 32-bpp images */
#ifdef FB_ACCESS_WRAPPER
    SetupWrapProcPtr setupWrap; /* driver hook to set pixmap access wrapping */
    FinishWrapProcPtr finishWrap;       /* driver hook to clean up pixmap access wrapping */
#endif
    DevPrivateKeyRec    gcPrivateKeyRec;
    DevPrivateKeyRec    winPrivateKeyRec;
} FbScreenPrivRec, *FbScreenPrivPtr;

#define fbGetScreenPrivate(pScreen) ((FbScreenPrivPtr) \
				     dixLookupPrivate(&(pScreen)->devPrivates, fbGetScreenPrivateKey()))

/* private field of GC */
typedef struct {
    FbBits and, xor;            /* reduced rop values */
    FbBits bgand, bgxor;        /* for stipples */
    FbBits fg, bg, pm;          /* expanded and filled */
    unsigned int dashLength;    /* total of all dash elements */
    unsigned char evenStipple;  /* stipple is even */
    unsigned char bpp;          /* current drawable bpp */
} FbGCPrivRec, *FbGCPrivPtr;

#define fbGetGCPrivateKey(pGC)  (&fbGetScreenPrivate((pGC)->pScreen)->gcPrivateKeyRec)

#define fbGetGCPrivate(pGC)	((FbGCPrivPtr)\
				 dixLookupPrivate(&(pGC)->devPrivates, fbGetGCPrivateKey(pGC)))

#define fbGetCompositeClip(pGC) ((pGC)->pCompositeClip)
#define fbGetExpose(pGC)	((pGC)->fExpose)
#define fbGetFreeCompClip(pGC)	((pGC)->freeCompClip)
#define fbGetRotatedPixmap(pGC)	((pGC)->pRotatedPixmap)

#define fbGetScreenPixmap(s)	((PixmapPtr) (s)->devPrivate)

#define fbGetWinPrivateKey(pWin)        (&fbGetScreenPrivate(((DrawablePtr) (pWin))->pScreen)->winPrivateKeyRec)

#define fbGetWindowPixmap(pWin)	((PixmapPtr)\
				 dixLookupPrivate(&((WindowPtr)(pWin))->devPrivates, fbGetWinPrivateKey(pWin)))

#ifdef ROOTLESS
#define __fbPixDrawableX(pPix)	((pPix)->drawable.x)
#define __fbPixDrawableY(pPix)	((pPix)->drawable.y)
#else
#define __fbPixDrawableX(pPix)	0
#define __fbPixDrawableY(pPix)	0
#endif

#ifdef COMPOSITE
#define __fbPixOffXWin(pPix)	(__fbPixDrawableX(pPix) - (pPix)->screen_x)
#define __fbPixOffYWin(pPix)	(__fbPixDrawableY(pPix) - (pPix)->screen_y)
#else
#define __fbPixOffXWin(pPix)	(__fbPixDrawableX(pPix))
#define __fbPixOffYWin(pPix)	(__fbPixDrawableY(pPix))
#endif
#define __fbPixOffXPix(pPix)	(__fbPixDrawableX(pPix))
#define __fbPixOffYPix(pPix)	(__fbPixDrawableY(pPix))

#define fbGetDrawablePixmap(pDrawable, pixmap, xoff, yoff) {			\
    if ((pDrawable)->type != DRAWABLE_PIXMAP) { 				\
	(pixmap) = fbGetWindowPixmap(pDrawable);				\
	(xoff) = __fbPixOffXWin(pixmap); 					\
	(yoff) = __fbPixOffYWin(pixmap); 					\
    } else { 									\
	(pixmap) = (PixmapPtr) (pDrawable);					\
	(xoff) = __fbPixOffXPix(pixmap); 					\
	(yoff) = __fbPixOffYPix(pixmap); 					\
    } 										\
    fbPrepareAccess(pDrawable); 						\
}

#define fbGetPixmapBitsData(pixmap, pointer, stride, bpp) {			\
    (pointer) = (FbBits *) (pixmap)->devPrivate.ptr; 			       	\
    (stride) = ((int) (pixmap)->devKind) / sizeof (FbBits); (void)(stride);	\
    (bpp) = (pixmap)->drawable.bitsPerPixel;  (void)(bpp); 			\
}

#define fbGetPixmapStipData(pixmap, pointer, stride, bpp) {			\
    (pointer) = (FbStip *) (pixmap)->devPrivate.ptr; 			       	\
    (stride) = ((int) (pixmap)->devKind) / sizeof (FbStip); (void)(stride);	\
    (bpp) = (pixmap)->drawable.bitsPerPixel;  (void)(bpp); 			\
}

#define fbGetDrawable(pDrawable, pointer, stride, bpp, xoff, yoff) { 		\
    PixmapPtr   _pPix; 								\
    fbGetDrawablePixmap(pDrawable, _pPix, xoff, yoff); 				\
    fbGetPixmapBitsData(_pPix, pointer, stride, bpp);				\
}

#define fbGetStipDrawable(pDrawable, pointer, stride, bpp, xoff, yoff) { 	\
    PixmapPtr   _pPix; 								\
    fbGetDrawablePixmap(pDrawable, _pPix, xoff, yoff);				\
    fbGetPixmapStipData(_pPix, pointer, stride, bpp);				\
}

/*
 * XFree86 empties the root BorderClip when the VT is inactive,
 * here's a macro which uses that to disable GetImage and GetSpans
 */

#define fbWindowEnabled(pWin) \
    RegionNotEmpty(&(pWin)->drawable.pScreen->root->borderClip)

#define fbDrawableEnabled(pDrawable) \
    ((pDrawable)->type == DRAWABLE_PIXMAP ? \
     TRUE : fbWindowEnabled((WindowPtr) pDrawable))

#define FbPowerOfTwo(w)	    (((w) & ((w) - 1)) == 0)
/*
 * Accelerated tiles are power of 2 width <= FB_UNIT
 */
#define FbEvenTile(w)	    ((w) <= FB_UNIT && FbPowerOfTwo(w))
/*
 * Accelerated stipples are power of 2 width and <= FB_UNIT/dstBpp
 * with dstBpp a power of 2 as well
 */
#define FbEvenStip(w,bpp)   ((w) * (bpp) <= FB_UNIT && FbPowerOfTwo(w) && FbPowerOfTwo(bpp))

/*
 * fb24_32.c
 */
extern _X_EXPORT void

fb24_32GetSpans(DrawablePtr pDrawable,
                int wMax,
                DDXPointPtr ppt, int *pwidth, int nspans, char *pchardstStart);

extern _X_EXPORT void

fb24_32SetSpans(DrawablePtr pDrawable,
                GCPtr pGC,
                char *src,
                DDXPointPtr ppt, int *pwidth, int nspans, int fSorted);

extern _X_EXPORT void

fb24_32PutZImage(DrawablePtr pDrawable,
                 RegionPtr pClip,
                 int alu,
                 FbBits pm,
                 int x,
                 int y, int width, int height, CARD8 *src, FbStride srcStride);

extern _X_EXPORT void

fb24_32GetImage(DrawablePtr pDrawable,
                int x,
                int y,
                int w,
                int h, unsigned int format, unsigned long planeMask, char *d);

extern _X_EXPORT void

fb24_32CopyMtoN(DrawablePtr pSrcDrawable,
                DrawablePtr pDstDrawable,
                GCPtr pGC,
                BoxPtr pbox,
                int nbox,
                int dx,
                int dy,
                Bool reverse, Bool upsidedown, Pixel bitplane, void *closure);

extern _X_EXPORT PixmapPtr
 fb24_32ReformatTile(PixmapPtr pOldTile, int bitsPerPixel);

extern _X_EXPORT Bool
 fb24_32CreateScreenResources(ScreenPtr pScreen);

extern _X_EXPORT Bool

fb24_32ModifyPixmapHeader(PixmapPtr pPixmap,
                          int width,
                          int height,
                          int depth,
                          int bitsPerPixel, int devKind, pointer pPixData);

/*
 * fballpriv.c
 */
extern _X_EXPORT Bool
fbAllocatePrivates(ScreenPtr pScreen);

/*
 * fbarc.c
 */

extern _X_EXPORT void
fbPolyArc(DrawablePtr pDrawable, GCPtr pGC, int narcs, xArc * parcs);

/*
 * fbbits.c
 */

extern _X_EXPORT void

fbBresSolid8(DrawablePtr pDrawable,
             GCPtr pGC,
             int dashOffset,
             int signdx,
             int signdy,
             int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbBresDash8(DrawablePtr pDrawable,
            GCPtr pGC,
            int dashOffset,
            int signdx,
            int signdy, int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbDots8(FbBits * dst,
        FbStride dstStride,
        int dstBpp,
        BoxPtr pBox,
        xPoint * pts,
        int npt,
        int xorg, int yorg, int xoff, int yoff, FbBits and, FbBits xor);

extern _X_EXPORT void

fbArc8(FbBits * dst,
       FbStride dstStride,
       int dstBpp, xArc * arc, int dx, int dy, FbBits and, FbBits xor);

extern _X_EXPORT void

fbGlyph8(FbBits * dstLine,
         FbStride dstStride,
         int dstBpp, FbStip * stipple, FbBits fg, int height, int shift);

extern _X_EXPORT void

fbPolyline8(DrawablePtr pDrawable,
            GCPtr pGC, int mode, int npt, DDXPointPtr ptsOrig);

extern _X_EXPORT void
 fbPolySegment8(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pseg);

extern _X_EXPORT void

fbBresSolid16(DrawablePtr pDrawable,
              GCPtr pGC,
              int dashOffset,
              int signdx,
              int signdy,
              int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbBresDash16(DrawablePtr pDrawable,
             GCPtr pGC,
             int dashOffset,
             int signdx,
             int signdy,
             int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbDots16(FbBits * dst,
         FbStride dstStride,
         int dstBpp,
         BoxPtr pBox,
         xPoint * pts,
         int npt,
         int xorg, int yorg, int xoff, int yoff, FbBits and, FbBits xor);

extern _X_EXPORT void

fbArc16(FbBits * dst,
        FbStride dstStride,
        int dstBpp, xArc * arc, int dx, int dy, FbBits and, FbBits xor);

extern _X_EXPORT void

fbGlyph16(FbBits * dstLine,
          FbStride dstStride,
          int dstBpp, FbStip * stipple, FbBits fg, int height, int shift);

extern _X_EXPORT void

fbPolyline16(DrawablePtr pDrawable,
             GCPtr pGC, int mode, int npt, DDXPointPtr ptsOrig);

extern _X_EXPORT void
 fbPolySegment16(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pseg);

extern _X_EXPORT void

fbBresSolid24(DrawablePtr pDrawable,
              GCPtr pGC,
              int dashOffset,
              int signdx,
              int signdy,
              int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbBresDash24(DrawablePtr pDrawable,
             GCPtr pGC,
             int dashOffset,
             int signdx,
             int signdy,
             int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbDots24(FbBits * dst,
         FbStride dstStride,
         int dstBpp,
         BoxPtr pBox,
         xPoint * pts,
         int npt,
         int xorg, int yorg, int xoff, int yoff, FbBits and, FbBits xor);

extern _X_EXPORT void

fbArc24(FbBits * dst,
        FbStride dstStride,
        int dstBpp, xArc * arc, int dx, int dy, FbBits and, FbBits xor);

extern _X_EXPORT void

fbGlyph24(FbBits * dstLine,
          FbStride dstStride,
          int dstBpp, FbStip * stipple, FbBits fg, int height, int shift);

extern _X_EXPORT void

fbPolyline24(DrawablePtr pDrawable,
             GCPtr pGC, int mode, int npt, DDXPointPtr ptsOrig);

extern _X_EXPORT void
 fbPolySegment24(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pseg);

extern _X_EXPORT void

fbBresSolid32(DrawablePtr pDrawable,
              GCPtr pGC,
              int dashOffset,
              int signdx,
              int signdy,
              int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbBresDash32(DrawablePtr pDrawable,
             GCPtr pGC,
             int dashOffset,
             int signdx,
             int signdy,
             int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbDots32(FbBits * dst,
         FbStride dstStride,
         int dstBpp,
         BoxPtr pBox,
         xPoint * pts,
         int npt,
         int xorg, int yorg, int xoff, int yoff, FbBits and, FbBits xor);

extern _X_EXPORT void

fbArc32(FbBits * dst,
        FbStride dstStride,
        int dstBpp, xArc * arc, int dx, int dy, FbBits and, FbBits xor);

extern _X_EXPORT void

fbGlyph32(FbBits * dstLine,
          FbStride dstStride,
          int dstBpp, FbStip * stipple, FbBits fg, int height, int shift);
extern _X_EXPORT void

fbPolyline32(DrawablePtr pDrawable,
             GCPtr pGC, int mode, int npt, DDXPointPtr ptsOrig);

extern _X_EXPORT void
 fbPolySegment32(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pseg);

/*
 * fbblt.c
 */
extern _X_EXPORT void

fbBlt(FbBits * src,
      FbStride srcStride,
      int srcX,
      FbBits * dst,
      FbStride dstStride,
      int dstX,
      int width,
      int height, int alu, FbBits pm, int bpp, Bool reverse, Bool upsidedown);

extern _X_EXPORT void

fbBlt24(FbBits * srcLine,
        FbStride srcStride,
        int srcX,
        FbBits * dstLine,
        FbStride dstStride,
        int dstX,
        int width,
        int height, int alu, FbBits pm, Bool reverse, Bool upsidedown);

extern _X_EXPORT void
 fbBltStip(FbStip * src, FbStride srcStride,    /* in FbStip units, not FbBits units */
           int srcX, FbStip * dst, FbStride dstStride,  /* in FbStip units, not FbBits units */
           int dstX, int width, int height, int alu, FbBits pm, int bpp);

/*
 * fbbltone.c
 */
extern _X_EXPORT void

fbBltOne(FbStip * src,
         FbStride srcStride,
         int srcX,
         FbBits * dst,
         FbStride dstStride,
         int dstX,
         int dstBpp,
         int width,
         int height, FbBits fgand, FbBits fbxor, FbBits bgand, FbBits bgxor);

extern _X_EXPORT void
 fbBltOne24(FbStip * src, FbStride srcStride,   /* FbStip units per scanline */
            int srcX,           /* bit position of source */
            FbBits * dst, FbStride dstStride,   /* FbBits units per scanline */
            int dstX,           /* bit position of dest */
            int dstBpp,         /* bits per destination unit */
            int width,          /* width in bits of destination */
            int height,         /* height in scanlines */
            FbBits fgand,       /* rrop values */
            FbBits fgxor, FbBits bgand, FbBits bgxor);

extern _X_EXPORT void

fbBltPlane(FbBits * src,
           FbStride srcStride,
           int srcX,
           int srcBpp,
           FbStip * dst,
           FbStride dstStride,
           int dstX,
           int width,
           int height,
           FbStip fgand,
           FbStip fgxor, FbStip bgand, FbStip bgxor, Pixel planeMask);

/*
 * fbcmap_mi.c
 */
extern _X_EXPORT int
 fbListInstalledColormaps(ScreenPtr pScreen, Colormap * pmaps);

extern _X_EXPORT void
 fbInstallColormap(ColormapPtr pmap);

extern _X_EXPORT void
 fbUninstallColormap(ColormapPtr pmap);

extern _X_EXPORT void

fbResolveColor(unsigned short *pred,
               unsigned short *pgreen,
               unsigned short *pblue, VisualPtr pVisual);

extern _X_EXPORT Bool
 fbInitializeColormap(ColormapPtr pmap);

extern _X_EXPORT int

fbExpandDirectColors(ColormapPtr pmap,
                     int ndef, xColorItem * indefs, xColorItem * outdefs);

extern _X_EXPORT Bool
 fbCreateDefColormap(ScreenPtr pScreen);

extern _X_EXPORT void
 fbClearVisualTypes(void);

extern _X_EXPORT Bool
 fbHasVisualTypes(int depth);

extern _X_EXPORT Bool
 fbSetVisualTypes(int depth, int visuals, int bitsPerRGB);

extern _X_EXPORT Bool

fbSetVisualTypesAndMasks(int depth, int visuals, int bitsPerRGB,
                         Pixel redMask, Pixel greenMask, Pixel blueMask);

extern _X_EXPORT Bool

fbInitVisuals(VisualPtr * visualp,
              DepthPtr * depthp,
              int *nvisualp,
              int *ndepthp,
              int *rootDepthp,
              VisualID * defaultVisp, unsigned long sizes, int bitsPerRGB);

/*
 * fbcopy.c
 */

/* Compatibility definition, to be removed at next ABI change. */
typedef void (*fbCopyProc) (DrawablePtr pSrcDrawable,
                            DrawablePtr pDstDrawable,
                            GCPtr pGC,
                            BoxPtr pDstBox,
                            int nbox,
                            int dx,
                            int dy,
                            Bool reverse,
                            Bool upsidedown, Pixel bitplane, void *closure);

extern _X_EXPORT void

fbCopyNtoN(DrawablePtr pSrcDrawable,
           DrawablePtr pDstDrawable,
           GCPtr pGC,
           BoxPtr pbox,
           int nbox,
           int dx,
           int dy,
           Bool reverse, Bool upsidedown, Pixel bitplane, void *closure);

/* Compatibility wrapper, to be removed at next ABI change. */
extern _X_EXPORT void

fbCopyRegion(DrawablePtr pSrcDrawable,
             DrawablePtr pDstDrawable,
             GCPtr pGC,
             RegionPtr pDstRegion,
             int dx,
             int dy, fbCopyProc copyProc, Pixel bitPlane, void *closure);

/* Compatibility wrapper, to be removed at next ABI change. */
extern _X_EXPORT RegionPtr

fbDoCopy(DrawablePtr pSrcDrawable,
         DrawablePtr pDstDrawable,
         GCPtr pGC,
         int xIn,
         int yIn,
         int widthSrc,
         int heightSrc,
         int xOut,
         int yOut, fbCopyProc copyProc, Pixel bitplane, void *closure);

extern _X_EXPORT void

fbCopy1toN(DrawablePtr pSrcDrawable,
           DrawablePtr pDstDrawable,
           GCPtr pGC,
           BoxPtr pbox,
           int nbox,
           int dx,
           int dy,
           Bool reverse, Bool upsidedown, Pixel bitplane, void *closure);

extern _X_EXPORT void

fbCopyNto1(DrawablePtr pSrcDrawable,
           DrawablePtr pDstDrawable,
           GCPtr pGC,
           BoxPtr pbox,
           int nbox,
           int dx,
           int dy,
           Bool reverse, Bool upsidedown, Pixel bitplane, void *closure);

extern _X_EXPORT RegionPtr

fbCopyArea(DrawablePtr pSrcDrawable,
           DrawablePtr pDstDrawable,
           GCPtr pGC,
           int xIn, int yIn, int widthSrc, int heightSrc, int xOut, int yOut);

extern _X_EXPORT RegionPtr

fbCopyPlane(DrawablePtr pSrcDrawable,
            DrawablePtr pDstDrawable,
            GCPtr pGC,
            int xIn,
            int yIn,
            int widthSrc,
            int heightSrc, int xOut, int yOut, unsigned long bitplane);

/*
 * fbfill.c
 */
extern _X_EXPORT void
 fbFill(DrawablePtr pDrawable, GCPtr pGC, int x, int y, int width, int height);

extern _X_EXPORT void

fbSolidBoxClipped(DrawablePtr pDrawable,
                  RegionPtr pClip,
                  int xa, int ya, int xb, int yb, FbBits and, FbBits xor);

/*
 * fbfillrect.c
 */
extern _X_EXPORT void

fbPolyFillRect(DrawablePtr pDrawable,
               GCPtr pGC, int nrectInit, xRectangle *prectInit);

#define fbPolyFillArc miPolyFillArc

#define fbFillPolygon miFillPolygon

/*
 * fbfillsp.c
 */
extern _X_EXPORT void

fbFillSpans(DrawablePtr pDrawable,
            GCPtr pGC,
            int nInit, DDXPointPtr pptInit, int *pwidthInit, int fSorted);

/*
 * fbgc.c
 */

extern _X_EXPORT Bool
 fbCreateGC(GCPtr pGC);

extern _X_EXPORT void
 fbPadPixmap(PixmapPtr pPixmap);

extern _X_EXPORT void
 fbValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable);

/*
 * fbgetsp.c
 */
extern _X_EXPORT void

fbGetSpans(DrawablePtr pDrawable,
           int wMax,
           DDXPointPtr ppt, int *pwidth, int nspans, char *pchardstStart);

/*
 * fbglyph.c
 */

extern _X_EXPORT Bool
 fbGlyphIn(RegionPtr pRegion, int x, int y, int width, int height);

extern _X_EXPORT void

fbPolyGlyphBlt(DrawablePtr pDrawable,
               GCPtr pGC,
               int x,
               int y,
               unsigned int nglyph, CharInfoPtr * ppci, pointer pglyphBase);

extern _X_EXPORT void

fbImageGlyphBlt(DrawablePtr pDrawable,
                GCPtr pGC,
                int x,
                int y,
                unsigned int nglyph, CharInfoPtr * ppci, pointer pglyphBase);

/*
 * fbimage.c
 */

extern _X_EXPORT void

fbPutImage(DrawablePtr pDrawable,
           GCPtr pGC,
           int depth,
           int x, int y, int w, int h, int leftPad, int format, char *pImage);

extern _X_EXPORT void

fbPutZImage(DrawablePtr pDrawable,
            RegionPtr pClip,
            int alu,
            FbBits pm,
            int x,
            int y, int width, int height, FbStip * src, FbStride srcStride);

extern _X_EXPORT void

fbPutXYImage(DrawablePtr pDrawable,
             RegionPtr pClip,
             FbBits fg,
             FbBits bg,
             FbBits pm,
             int alu,
             Bool opaque,
             int x,
             int y,
             int width, int height, FbStip * src, FbStride srcStride, int srcX);

extern _X_EXPORT void

fbGetImage(DrawablePtr pDrawable,
           int x,
           int y,
           int w, int h, unsigned int format, unsigned long planeMask, char *d);
/*
 * fbline.c
 */

extern _X_EXPORT void

fbZeroLine(DrawablePtr pDrawable,
           GCPtr pGC, int mode, int npt, DDXPointPtr ppt);

extern _X_EXPORT void
 fbZeroSegment(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pSegs);

extern _X_EXPORT void

fbPolyLine(DrawablePtr pDrawable,
           GCPtr pGC, int mode, int npt, DDXPointPtr ppt);

extern _X_EXPORT void
 fbFixCoordModePrevious(int npt, DDXPointPtr ppt);

extern _X_EXPORT void
 fbPolySegment(DrawablePtr pDrawable, GCPtr pGC, int nseg, xSegment * pseg);

#define fbPolyRectangle	miPolyRectangle

/*
 * fbpict.c
 */

extern _X_EXPORT Bool
 fbPictureInit(ScreenPtr pScreen, PictFormatPtr formats, int nformats);

extern _X_EXPORT void
fbDestroyGlyphCache(void);

/*
 * fbpixmap.c
 */

extern _X_EXPORT PixmapPtr

fbCreatePixmapBpp(ScreenPtr pScreen, int width, int height, int depth, int bpp,
                  unsigned usage_hint);

extern _X_EXPORT PixmapPtr

fbCreatePixmap(ScreenPtr pScreen, int width, int height, int depth,
               unsigned usage_hint);

extern _X_EXPORT Bool
 fbDestroyPixmap(PixmapPtr pPixmap);

extern _X_EXPORT RegionPtr
 fbPixmapToRegion(PixmapPtr pPix);

/*
 * fbpoint.c
 */

extern _X_EXPORT void

fbDots(FbBits * dstOrig,
       FbStride dstStride,
       int dstBpp,
       BoxPtr pBox,
       xPoint * pts,
       int npt,
       int xorg, int yorg, int xoff, int yoff, FbBits andOrig, FbBits xorOrig);

extern _X_EXPORT void

fbPolyPoint(DrawablePtr pDrawable,
            GCPtr pGC, int mode, int npt, xPoint * pptInit);

/*
 * fbpush.c
 */
extern _X_EXPORT void

fbPushPattern(DrawablePtr pDrawable,
              GCPtr pGC,
              FbStip * src,
              FbStride srcStride,
              int srcX, int x, int y, int width, int height);

extern _X_EXPORT void

fbPushFill(DrawablePtr pDrawable,
           GCPtr pGC,
           FbStip * src,
           FbStride srcStride, int srcX, int x, int y, int width, int height);

extern _X_EXPORT void

fbPushImage(DrawablePtr pDrawable,
            GCPtr pGC,
            FbStip * src,
            FbStride srcStride, int srcX, int x, int y, int width, int height);

extern _X_EXPORT void

fbPushPixels(GCPtr pGC,
             PixmapPtr pBitmap,
             DrawablePtr pDrawable, int dx, int dy, int xOrg, int yOrg);

/*
 * fbscreen.c
 */

extern _X_EXPORT Bool
 fbCloseScreen(ScreenPtr pScreen);

extern _X_EXPORT Bool
 fbRealizeFont(ScreenPtr pScreen, FontPtr pFont);

extern _X_EXPORT Bool
 fbUnrealizeFont(ScreenPtr pScreen, FontPtr pFont);

extern _X_EXPORT void

fbQueryBestSize(int class,
                unsigned short *width, unsigned short *height,
                ScreenPtr pScreen);

extern _X_EXPORT PixmapPtr
 _fbGetWindowPixmap(WindowPtr pWindow);

extern _X_EXPORT void
 _fbSetWindowPixmap(WindowPtr pWindow, PixmapPtr pPixmap);

extern _X_EXPORT Bool
 fbSetupScreen(ScreenPtr pScreen, pointer pbits,        /* pointer to screen bitmap */
               int xsize,       /* in pixels */
               int ysize, int dpix,     /* dots per inch */
               int dpiy, int width,     /* pixel width of frame buffer */
               int bpp);        /* bits per pixel of frame buffer */

extern _X_EXPORT Bool

wfbFinishScreenInit(ScreenPtr pScreen,
                    pointer pbits,
                    int xsize,
                    int ysize,
                    int dpix,
                    int dpiy,
                    int width,
                    int bpp,
                    SetupWrapProcPtr setupWrap, FinishWrapProcPtr finishWrap);

extern _X_EXPORT Bool

wfbScreenInit(ScreenPtr pScreen,
              pointer pbits,
              int xsize,
              int ysize,
              int dpix,
              int dpiy,
              int width,
              int bpp,
              SetupWrapProcPtr setupWrap, FinishWrapProcPtr finishWrap);

extern _X_EXPORT Bool

fbFinishScreenInit(ScreenPtr pScreen,
                   pointer pbits,
                   int xsize,
                   int ysize, int dpix, int dpiy, int width, int bpp);

extern _X_EXPORT Bool

fbScreenInit(ScreenPtr pScreen,
             pointer pbits,
             int xsize, int ysize, int dpix, int dpiy, int width, int bpp);

/*
 * fbseg.c
 */
typedef void FbBres(DrawablePtr pDrawable,
                    GCPtr pGC,
                    int dashOffset,
                    int signdx,
                    int signdy,
                    int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT FbBres fbBresSolid, fbBresDash, fbBresFill, fbBresFillDash;

/*
 * fbsetsp.c
 */

extern _X_EXPORT void

fbSetSpans(DrawablePtr pDrawable,
           GCPtr pGC,
           char *src, DDXPointPtr ppt, int *pwidth, int nspans, int fSorted);

extern _X_EXPORT FbBres *fbSelectBres(DrawablePtr pDrawable, GCPtr pGC);

extern _X_EXPORT void

fbBres(DrawablePtr pDrawable,
       GCPtr pGC,
       int dashOffset,
       int signdx,
       int signdy, int axis, int x, int y, int e, int e1, int e3, int len);

extern _X_EXPORT void

fbSegment(DrawablePtr pDrawable,
          GCPtr pGC,
          int xa, int ya, int xb, int yb, Bool drawLast, int *dashOffset);

/*
 * fbsolid.c
 */

extern _X_EXPORT void

fbSolid(FbBits * dst,
        FbStride dstStride,
        int dstX, int bpp, int width, int height, FbBits and, FbBits xor);

extern _X_EXPORT void

fbSolid24(FbBits * dst,
          FbStride dstStride,
          int dstX, int width, int height, FbBits and, FbBits xor);

/*
 * fbstipple.c
 */

extern _X_EXPORT void
 fbTransparentSpan(FbBits * dst, FbBits stip, FbBits fgxor, int n);

extern _X_EXPORT void

fbEvenStipple(FbBits * dst,
              FbStride dstStride,
              int dstX,
              int dstBpp,
              int width,
              int height,
              FbStip * stip,
              FbStride stipStride,
              int stipHeight,
              FbBits fgand,
              FbBits fgxor, FbBits bgand, FbBits bgxor, int xRot, int yRot);

extern _X_EXPORT void

fbOddStipple(FbBits * dst,
             FbStride dstStride,
             int dstX,
             int dstBpp,
             int width,
             int height,
             FbStip * stip,
             FbStride stipStride,
             int stipWidth,
             int stipHeight,
             FbBits fgand,
             FbBits fgxor, FbBits bgand, FbBits bgxor, int xRot, int yRot);

extern _X_EXPORT void

fbStipple(FbBits * dst,
          FbStride dstStride,
          int dstX,
          int dstBpp,
          int width,
          int height,
          FbStip * stip,
          FbStride stipStride,
          int stipWidth,
          int stipHeight,
          Bool even,
          FbBits fgand,
          FbBits fgxor, FbBits bgand, FbBits bgxor, int xRot, int yRot);

/*
 * fbtile.c
 */

extern _X_EXPORT void

fbEvenTile(FbBits * dst,
           FbStride dstStride,
           int dstX,
           int width,
           int height,
           FbBits * tile,
           FbStride tileStride,
           int tileHeight, int alu, FbBits pm, int xRot, int yRot);

extern _X_EXPORT void

fbOddTile(FbBits * dst,
          FbStride dstStride,
          int dstX,
          int width,
          int height,
          FbBits * tile,
          FbStride tileStride,
          int tileWidth,
          int tileHeight, int alu, FbBits pm, int bpp, int xRot, int yRot);

extern _X_EXPORT void

fbTile(FbBits * dst,
       FbStride dstStride,
       int dstX,
       int width,
       int height,
       FbBits * tile,
       FbStride tileStride,
       int tileWidth,
       int tileHeight, int alu, FbBits pm, int bpp, int xRot, int yRot);

/*
 * fbutil.c
 */
extern _X_EXPORT FbBits fbReplicatePixel(Pixel p, int bpp);

extern _X_EXPORT void
 fbReduceRasterOp(int rop, FbBits fg, FbBits pm, FbBits * andp, FbBits * xorp);

#ifdef FB_ACCESS_WRAPPER
extern _X_EXPORT ReadMemoryProcPtr wfbReadMemory;
extern _X_EXPORT WriteMemoryProcPtr wfbWriteMemory;
#endif

/*
 * fbwindow.c
 */

extern _X_EXPORT Bool
 fbCreateWindow(WindowPtr pWin);

extern _X_EXPORT Bool
 fbDestroyWindow(WindowPtr pWin);

extern _X_EXPORT Bool
 fbMapWindow(WindowPtr pWindow);

extern _X_EXPORT Bool
 fbPositionWindow(WindowPtr pWin, int x, int y);

extern _X_EXPORT Bool
 fbUnmapWindow(WindowPtr pWindow);

extern _X_EXPORT void

fbCopyWindowProc(DrawablePtr pSrcDrawable,
                 DrawablePtr pDstDrawable,
                 GCPtr pGC,
                 BoxPtr pbox,
                 int nbox,
                 int dx,
                 int dy,
                 Bool reverse, Bool upsidedown, Pixel bitplane, void *closure);

extern _X_EXPORT void
 fbCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc);

extern _X_EXPORT Bool
 fbChangeWindowAttributes(WindowPtr pWin, unsigned long mask);

extern _X_EXPORT void

fbFillRegionSolid(DrawablePtr pDrawable,
                  RegionPtr pRegion, FbBits and, FbBits xor);

extern _X_EXPORT pixman_image_t *image_from_pict(PicturePtr pict,
                                                 Bool has_clip,
                                                 int *xoff, int *yoff);

extern _X_EXPORT void free_pixman_pict(PicturePtr, pixman_image_t *);

#endif                          /* _FB_H_ */