-
-
Notifications
You must be signed in to change notification settings - Fork 150
/
voodoo.cpp
7242 lines (6354 loc) · 220 KB
/
voodoo.cpp
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
/*
* SPDX-License-Identifier: BSD-3-Clause AND GPL-2.0-or-later
*
* copyright-holders: Aaron Giles, kekko, Bernhard Schelling
*/
/*
* Copyright (C) 2023 The DOSBox Staging Team
* Copyright (C) 2002-2011 The DOSBox Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/***************************************************************************/
/* Portion of this software comes with the following license: */
/***************************************************************************/
/*
Copyright Aaron Giles
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name 'MAME' nor the names of its contributors may be
used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
***************************************************************************/
/*
3dfx Voodoo Graphics SST-1/2 emulator by Aaron Giles
DOSBox integration by kekko (https://www.vogons.org/viewtopic.php?f=41&t=41853)
Code cleanups and multi-threaded triangle rendering by Bernhard Schelling
*/
#include "dosbox.h"
#if C_VOODOO
#include <algorithm>
#include <array>
#include <atomic>
#include <cassert>
#include <cmath>
#include <condition_variable>
#include <cstdlib>
#include <cstring>
#include <mutex>
#include <SDL.h>
#include <SDL_cpuinfo.h> // for proper SSE defines for MSVC
#if defined(__SSE2__)
#include <emmintrin.h>
#endif
#include "control.h"
#include "cross.h"
#include "mem.h"
#include "paging.h"
#include "pci_bus.h"
#include "pic.h"
#include "render.h"
#include "semaphore.h"
#include "setup.h"
#include "support.h"
#include "vga.h"
#ifndef DOSBOX_VOODOO_TYPES_H
#define DOSBOX_VOODOO_TYPES_H
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// FIXME Get rid of these typedefs
//
/* 8-bit values */
typedef uint8_t UINT8;
typedef int8_t INT8;
/* 16-bit values */
typedef uint16_t UINT16;
typedef int16_t INT16;
#ifndef _WINDOWS_
/* 32-bit values */
typedef uint32_t UINT32;
typedef int32_t INT32;
/* 64-bit values */
typedef uint64_t UINT64;
typedef int64_t INT64;
#endif
typedef INT64 attoseconds_t;
#define ATTOSECONDS_PER_SECOND_SQRT ((attoseconds_t)1000000000)
#define ATTOSECONDS_PER_SECOND (ATTOSECONDS_PER_SECOND_SQRT * ATTOSECONDS_PER_SECOND_SQRT)
/* convert between hertz (as a double) and attoseconds */
#define ATTOSECONDS_TO_HZ(x) ((double)ATTOSECONDS_PER_SECOND / (double)(x))
#define HZ_TO_ATTOSECONDS(x) ((attoseconds_t)(ATTOSECONDS_PER_SECOND / (x)))
#define MAX_VERTEX_PARAMS 6
/* poly_extent describes start/end points for a scanline, along with per-scanline parameters */
struct poly_extent
{
INT32 startx; /* starting X coordinate (inclusive) */
INT32 stopx; /* ending X coordinate (exclusive) */
};
/* an rgb_t is a single combined R,G,B (and optionally alpha) value */
typedef UINT32 rgb_t;
/* an rgb15_t is a single combined 15-bit R,G,B value */
typedef UINT16 rgb15_t;
/* macros to assemble rgb_t values */
#define MAKE_ARGB(a,r,g,b) ((((rgb_t)(a) & 0xff) << 24) | (((rgb_t)(r) & 0xff) << 16) | (((rgb_t)(g) & 0xff) << 8) | ((rgb_t)(b) & 0xff))
#define MAKE_RGB(r,g,b) (MAKE_ARGB(255,r,g,b))
/* macros to extract components from rgb_t values */
#define RGB_ALPHA(rgb) (((rgb) >> 24) & 0xff)
#define RGB_RED(rgb) (((rgb) >> 16) & 0xff)
#define RGB_GREEN(rgb) (((rgb) >> 8) & 0xff)
#define RGB_BLUE(rgb) ((rgb) & 0xff)
/* common colors */
#define RGB_BLACK (MAKE_ARGB(255,0,0,0))
#define RGB_WHITE (MAKE_ARGB(255,255,255,255))
/***************************************************************************
inline FUNCTIONS
***************************************************************************/
/*-------------------------------------------------
pal5bit - convert a 5-bit value to 8 bits
-------------------------------------------------*/
inline UINT8 pal5bit(UINT8 bits)
{
bits &= 0x1f;
return (bits << 3) | (bits >> 2);
}
#ifdef C_ENABLE_VOODOO_DEBUG
/* rectangles describe a bitmap portion */
struct rectangle
{
int min_x; /* minimum X, or left coordinate */
int max_x; /* maximum X, or right coordinate (inclusive) */
int min_y; /* minimum Y, or top coordinate */
int max_y; /* maximum Y, or bottom coordinate (inclusive) */
};
#endif
/* Macros for normalizing data into big or little endian formats */
#define FLIPENDIAN_INT16(x) (((((UINT16) (x)) >> 8) | ((x) << 8)) & 0xffff)
#define FLIPENDIAN_INT32(x) ((((UINT32) (x)) << 24) | (((UINT32) (x)) >> 24) | \
(( ((UINT32) (x)) & 0x0000ff00) << 8) | (( ((UINT32) (x)) & 0x00ff0000) >> 8))
#define FLIPENDIAN_INT64(x) \
( \
(((((UINT64) (x)) >> 56) & ((UINT64) 0xFF)) << 0) | \
(((((UINT64) (x)) >> 48) & ((UINT64) 0xFF)) << 8) | \
(((((UINT64) (x)) >> 40) & ((UINT64) 0xFF)) << 16) | \
(((((UINT64) (x)) >> 32) & ((UINT64) 0xFF)) << 24) | \
(((((UINT64) (x)) >> 24) & ((UINT64) 0xFF)) << 32) | \
(((((UINT64) (x)) >> 16) & ((UINT64) 0xFF)) << 40) | \
(((((UINT64) (x)) >> 8) & ((UINT64) 0xFF)) << 48) | \
(((((UINT64) (x)) >> 0) & ((UINT64) 0xFF)) << 56) \
)
#define ACCESSING_BITS_0_15 ((mem_mask & 0x0000ffff) != 0)
#define ACCESSING_BITS_16_31 ((mem_mask & 0xffff0000) != 0)
//// constants for expression endianness
#ifndef WORDS_BIGENDIAN
#define NATIVE_ENDIAN_VALUE_LE_BE(leval,beval) (leval)
#else
#define NATIVE_ENDIAN_VALUE_LE_BE(leval,beval) (beval)
#endif
#define BYTE4_XOR_LE(a) ((a) ^ NATIVE_ENDIAN_VALUE_LE_BE(0,3))
#define BYTE_XOR_LE(a) ((a) ^ NATIVE_ENDIAN_VALUE_LE_BE(0,1))
#define profiler_mark_start(x) do { } while (0)
#define profiler_mark_end() do { } while (0)
inline INT32 mul_32x32_shift(INT32 a, INT32 b, INT8 shift)
{
return (INT32)(((INT64)a * (INT64)b) >> shift);
}
#if defined(__SSE2__)
static int16_t sse2_scale_table[256][8];
#endif
inline rgb_t rgba_bilinear_filter(rgb_t rgb00, rgb_t rgb01, rgb_t rgb10,
rgb_t rgb11, UINT8 u, UINT8 v)
{
#if defined(__SSE2__)
__m128i scale_u = *(__m128i *)sse2_scale_table[u], scale_v = *(__m128i *)sse2_scale_table[v];
return _mm_cvtsi128_si32(_mm_packus_epi16(_mm_packs_epi32(_mm_srli_epi32(_mm_madd_epi16(_mm_max_epi16(
_mm_slli_epi32(_mm_madd_epi16(_mm_unpacklo_epi8(_mm_unpacklo_epi8(_mm_cvtsi32_si128(rgb01), _mm_cvtsi32_si128(rgb00)), _mm_setzero_si128()), scale_u), 15),
_mm_srli_epi32(_mm_madd_epi16(_mm_unpacklo_epi8(_mm_unpacklo_epi8(_mm_cvtsi32_si128(rgb11), _mm_cvtsi32_si128(rgb10)), _mm_setzero_si128()), scale_u), 1)),
scale_v), 15), _mm_setzero_si128()), _mm_setzero_si128()));
#else
UINT32 ag0, ag1, rb0, rb1;
rb0 = (rgb00 & 0x00ff00ff) + ((((rgb01 & 0x00ff00ff) - (rgb00 & 0x00ff00ff)) * u) >> 8);
rb1 = (rgb10 & 0x00ff00ff) + ((((rgb11 & 0x00ff00ff) - (rgb10 & 0x00ff00ff)) * u) >> 8);
rgb00 >>= 8;
rgb01 >>= 8;
rgb10 >>= 8;
rgb11 >>= 8;
ag0 = (rgb00 & 0x00ff00ff) + ((((rgb01 & 0x00ff00ff) - (rgb00 & 0x00ff00ff)) * u) >> 8);
ag1 = (rgb10 & 0x00ff00ff) + ((((rgb11 & 0x00ff00ff) - (rgb10 & 0x00ff00ff)) * u) >> 8);
rb0 = (rb0 & 0x00ff00ff) + ((((rb1 & 0x00ff00ff) - (rb0 & 0x00ff00ff)) * v) >> 8);
ag0 = (ag0 & 0x00ff00ff) + ((((ag1 & 0x00ff00ff) - (ag0 & 0x00ff00ff)) * v) >> 8);
return ((ag0 << 8) & 0xff00ff00) | (rb0 & 0x00ff00ff);
#endif
}
struct poly_vertex
{
float x; /* X coordinate */
float y; /* Y coordinate */
//float p[MAX_VERTEX_PARAMS]; /* interpolated parameter values */
};
#endif //DOSBOX_VOODOO_TYPES_H
#ifndef DOSBOX_VOODOO_DATA_H
#define DOSBOX_VOODOO_DATA_H
/*************************************
*
* Misc. constants
*
*************************************/
/* enumeration specifying which model of Voodoo we are emulating */
enum
{
VOODOO_1,
VOODOO_1_DTMU,
VOODOO_2,
};
enum { TRIANGLE_THREADS = 3, TRIANGLE_WORKERS = TRIANGLE_THREADS + 1 };
/* maximum number of TMUs */
#define MAX_TMU 2
#ifdef C_ENABLE_VOODOO_OPENGL
/* maximum number of rasterizers */
#define MAX_RASTERIZERS 1024
/* size of the rasterizer hash table */
#define RASTER_HASH_SIZE 97
#endif
/* flags for LFB writes */
#define LFB_RGB_PRESENT 1
#define LFB_ALPHA_PRESENT 2
#define LFB_DEPTH_PRESENT 4
#define LFB_DEPTH_PRESENT_MSW 8
/* flags for the register access array */
#define REGISTER_READ 0x01 /* reads are allowed */
#define REGISTER_WRITE 0x02 /* writes are allowed */
#define REGISTER_PIPELINED 0x04 /* writes are pipelined */
#define REGISTER_FIFO 0x08 /* writes go to FIFO */
#define REGISTER_WRITETHRU 0x10 /* writes are valid even for CMDFIFO */
/* shorter combinations to make the table smaller */
#define REG_R (REGISTER_READ)
#define REG_W (REGISTER_WRITE)
#define REG_WT (REGISTER_WRITE | REGISTER_WRITETHRU)
#define REG_RW (REGISTER_READ | REGISTER_WRITE)
#define REG_RWT (REGISTER_READ | REGISTER_WRITE | REGISTER_WRITETHRU)
#define REG_RP (REGISTER_READ | REGISTER_PIPELINED)
#define REG_WP (REGISTER_WRITE | REGISTER_PIPELINED)
#define REG_RWP (REGISTER_READ | REGISTER_WRITE | REGISTER_PIPELINED)
#define REG_RWPT (REGISTER_READ | REGISTER_WRITE | REGISTER_PIPELINED | REGISTER_WRITETHRU)
#define REG_RF (REGISTER_READ | REGISTER_FIFO)
#define REG_WF (REGISTER_WRITE | REGISTER_FIFO)
#define REG_RWF (REGISTER_READ | REGISTER_WRITE | REGISTER_FIFO)
#define REG_RPF (REGISTER_READ | REGISTER_PIPELINED | REGISTER_FIFO)
#define REG_WPF (REGISTER_WRITE | REGISTER_PIPELINED | REGISTER_FIFO)
#define REG_RWPF (REGISTER_READ | REGISTER_WRITE | REGISTER_PIPELINED | REGISTER_FIFO)
/* lookup bits is the log2 of the size of the reciprocal/log table */
#define RECIPLOG_LOOKUP_BITS 9
/* fast reciprocal+log2 lookup */
static UINT32 voodoo_reciplog[(2 << RECIPLOG_LOOKUP_BITS) + 2];
/* input precision is how many fraction bits the input value has; this is a 64-bit number */
#define RECIPLOG_INPUT_PREC 32
/* lookup precision is how many fraction bits each table entry contains */
#define RECIPLOG_LOOKUP_PREC 22
/* output precision is how many fraction bits the result should have */
#define RECIP_OUTPUT_PREC 15
#define LOG_OUTPUT_PREC 8
/*************************************
*
* Dithering tables
*
*************************************/
static const UINT8 dither_matrix_4x4[16] =
{
0, 8, 2, 10,
12, 4, 14, 6,
3, 11, 1, 9,
15, 7, 13, 5
};
static const UINT8 dither_matrix_2x2[16] =
{
2, 10, 2, 10,
14, 6, 14, 6,
2, 10, 2, 10,
14, 6, 14, 6
};
/*************************************
*
* Macros for extracting pixels
*
*************************************/
#define EXTRACT_565_TO_888(val, a, b, c) \
(a) = (((val) >> 8) & 0xf8) | (((val) >> 13) & 0x07); \
(b) = (((val) >> 3) & 0xfc) | (((val) >> 9) & 0x03); \
(c) = (((val) << 3) & 0xf8) | (((val) >> 2) & 0x07); \
#define EXTRACT_x555_TO_888(val, a, b, c) \
(a) = (((val) >> 7) & 0xf8) | (((val) >> 12) & 0x07); \
(b) = (((val) >> 2) & 0xf8) | (((val) >> 7) & 0x07); \
(c) = (((val) << 3) & 0xf8) | (((val) >> 2) & 0x07); \
#define EXTRACT_555x_TO_888(val, a, b, c) \
(a) = (((val) >> 8) & 0xf8) | (((val) >> 13) & 0x07); \
(b) = (((val) >> 3) & 0xf8) | (((val) >> 8) & 0x07); \
(c) = (((val) << 2) & 0xf8) | (((val) >> 3) & 0x07); \
#define EXTRACT_1555_TO_8888(val, a, b, c, d) \
(a) = ((INT16)(val) >> 15) & 0xff; \
EXTRACT_x555_TO_888(val, b, c, d) \
#define EXTRACT_5551_TO_8888(val, a, b, c, d) \
EXTRACT_555x_TO_888(val, a, b, c) \
(d) = ((val) & 0x0001) ? 0xff : 0x00; \
#define EXTRACT_x888_TO_888(val, a, b, c) \
(a) = ((val) >> 16) & 0xff; \
(b) = ((val) >> 8) & 0xff; \
(c) = ((val) >> 0) & 0xff; \
#define EXTRACT_888x_TO_888(val, a, b, c) \
(a) = ((val) >> 24) & 0xff; \
(b) = ((val) >> 16) & 0xff; \
(c) = ((val) >> 8) & 0xff; \
#define EXTRACT_8888_TO_8888(val, a, b, c, d) \
(a) = ((val) >> 24) & 0xff; \
(b) = ((val) >> 16) & 0xff; \
(c) = ((val) >> 8) & 0xff; \
(d) = ((val) >> 0) & 0xff; \
#define EXTRACT_4444_TO_8888(val, a, b, c, d) \
(a) = (((val) >> 8) & 0xf0) | (((val) >> 12) & 0x0f); \
(b) = (((val) >> 4) & 0xf0) | (((val) >> 8) & 0x0f); \
(c) = (((val) >> 0) & 0xf0) | (((val) >> 4) & 0x0f); \
(d) = (((val) << 4) & 0xf0) | (((val) >> 0) & 0x0f); \
#define EXTRACT_332_TO_888(val, a, b, c) \
(a) = (((val) >> 0) & 0xe0) | (((val) >> 3) & 0x1c) | (((val) >> 6) & 0x03); \
(b) = (((val) << 3) & 0xe0) | (((val) >> 0) & 0x1c) | (((val) >> 3) & 0x03); \
(c) = (((val) << 6) & 0xc0) | (((val) << 4) & 0x30) | (((val) << 2) & 0xc0) | (((val) << 0) & 0x03); \
/*************************************
*
* Misc. macros
*
*************************************/
/* macro for clamping a value between minimum and maximum values */
#define CLAMP(val,min,max) do { if ((val) < (min)) { (val) = (min); } else if ((val) > (max)) { (val) = (max); } } while (0)
/* macro to compute the base 2 log for LOD calculations */
#define LOGB2(x) (log((double)(x)) / log(2.0))
/*************************************
*
* Macros for extracting bitfields
*
*************************************/
#define INITEN_ENABLE_HW_INIT(val) (((val) >> 0) & 1)
#define INITEN_ENABLE_PCI_FIFO(val) (((val) >> 1) & 1)
#define INITEN_REMAP_INIT_TO_DAC(val) (((val) >> 2) & 1)
#define INITEN_ENABLE_SNOOP0(val) (((val) >> 4) & 1)
#define INITEN_SNOOP0_MEMORY_MATCH(val) (((val) >> 5) & 1)
#define INITEN_SNOOP0_READWRITE_MATCH(val) (((val) >> 6) & 1)
#define INITEN_ENABLE_SNOOP1(val) (((val) >> 7) & 1)
#define INITEN_SNOOP1_MEMORY_MATCH(val) (((val) >> 8) & 1)
#define INITEN_SNOOP1_READWRITE_MATCH(val) (((val) >> 9) & 1)
#define INITEN_SLI_BUS_OWNER(val) (((val) >> 10) & 1)
#define INITEN_SLI_ODD_EVEN(val) (((val) >> 11) & 1)
#define INITEN_SECONDARY_REV_ID(val) (((val) >> 12) & 0xf) /* voodoo 2 only */
#define INITEN_MFCTR_FAB_ID(val) (((val) >> 16) & 0xf) /* voodoo 2 only */
#define INITEN_ENABLE_PCI_INTERRUPT(val) (((val) >> 20) & 1) /* voodoo 2 only */
#define INITEN_PCI_INTERRUPT_TIMEOUT(val) (((val) >> 21) & 1) /* voodoo 2 only */
#define INITEN_ENABLE_NAND_TREE_TEST(val) (((val) >> 22) & 1) /* voodoo 2 only */
#define INITEN_ENABLE_SLI_ADDRESS_SNOOP(val) (((val) >> 23) & 1) /* voodoo 2 only */
#define INITEN_SLI_SNOOP_ADDRESS(val) (((val) >> 24) & 0xff) /* voodoo 2 only */
#define FBZCP_CC_RGBSELECT(val) (((val) >> 0) & 3)
#define FBZCP_CC_ASELECT(val) (((val) >> 2) & 3)
#define FBZCP_CC_LOCALSELECT(val) (((val) >> 4) & 1)
#define FBZCP_CCA_LOCALSELECT(val) (((val) >> 5) & 3)
#define FBZCP_CC_LOCALSELECT_OVERRIDE(val) (((val) >> 7) & 1)
#define FBZCP_CC_ZERO_OTHER(val) (((val) >> 8) & 1)
#define FBZCP_CC_SUB_CLOCAL(val) (((val) >> 9) & 1)
#define FBZCP_CC_MSELECT(val) (((val) >> 10) & 7)
#define FBZCP_CC_REVERSE_BLEND(val) (((val) >> 13) & 1)
#define FBZCP_CC_ADD_ACLOCAL(val) (((val) >> 14) & 3)
#define FBZCP_CC_INVERT_OUTPUT(val) (((val) >> 16) & 1)
#define FBZCP_CCA_ZERO_OTHER(val) (((val) >> 17) & 1)
#define FBZCP_CCA_SUB_CLOCAL(val) (((val) >> 18) & 1)
#define FBZCP_CCA_MSELECT(val) (((val) >> 19) & 7)
#define FBZCP_CCA_REVERSE_BLEND(val) (((val) >> 22) & 1)
#define FBZCP_CCA_ADD_ACLOCAL(val) (((val) >> 23) & 3)
#define FBZCP_CCA_INVERT_OUTPUT(val) (((val) >> 25) & 1)
#define FBZCP_CCA_SUBPIXEL_ADJUST(val) (((val) >> 26) & 1)
#define FBZCP_TEXTURE_ENABLE(val) (((val) >> 27) & 1)
#define FBZCP_RGBZW_CLAMP(val) (((val) >> 28) & 1) /* voodoo 2 only */
#define FBZCP_ANTI_ALIAS(val) (((val) >> 29) & 1) /* voodoo 2 only */
#define ALPHAMODE_ALPHATEST(val) (((val) >> 0) & 1)
#define ALPHAMODE_ALPHAFUNCTION(val) (((val) >> 1) & 7)
#define ALPHAMODE_ALPHABLEND(val) (((val) >> 4) & 1)
#define ALPHAMODE_ANTIALIAS(val) (((val) >> 5) & 1)
#define ALPHAMODE_SRCRGBBLEND(val) (((val) >> 8) & 15)
#define ALPHAMODE_DSTRGBBLEND(val) (((val) >> 12) & 15)
#define ALPHAMODE_SRCALPHABLEND(val) (((val) >> 16) & 15)
#define ALPHAMODE_DSTALPHABLEND(val) (((val) >> 20) & 15)
#define ALPHAMODE_ALPHAREF(val) (((val) >> 24) & 0xff)
#define FOGMODE_ENABLE_FOG(val) (((val) >> 0) & 1)
#define FOGMODE_FOG_ADD(val) (((val) >> 1) & 1)
#define FOGMODE_FOG_MULT(val) (((val) >> 2) & 1)
#define FOGMODE_FOG_ZALPHA(val) (((val) >> 3) & 3)
#define FOGMODE_FOG_CONSTANT(val) (((val) >> 5) & 1)
#define FOGMODE_FOG_DITHER(val) (((val) >> 6) & 1) /* voodoo 2 only */
#define FOGMODE_FOG_ZONES(val) (((val) >> 7) & 1) /* voodoo 2 only */
#define FBZMODE_ENABLE_CLIPPING(val) (((val) >> 0) & 1)
#define FBZMODE_ENABLE_CHROMAKEY(val) (((val) >> 1) & 1)
#define FBZMODE_ENABLE_STIPPLE(val) (((val) >> 2) & 1)
#define FBZMODE_WBUFFER_SELECT(val) (((val) >> 3) & 1)
#define FBZMODE_ENABLE_DEPTHBUF(val) (((val) >> 4) & 1)
#define FBZMODE_DEPTH_FUNCTION(val) (((val) >> 5) & 7)
#define FBZMODE_ENABLE_DITHERING(val) (((val) >> 8) & 1)
#define FBZMODE_RGB_BUFFER_MASK(val) (((val) >> 9) & 1)
#define FBZMODE_AUX_BUFFER_MASK(val) (((val) >> 10) & 1)
#define FBZMODE_DITHER_TYPE(val) (((val) >> 11) & 1)
#define FBZMODE_STIPPLE_PATTERN(val) (((val) >> 12) & 1)
#define FBZMODE_ENABLE_ALPHA_MASK(val) (((val) >> 13) & 1)
#define FBZMODE_DRAW_BUFFER(val) (((val) >> 14) & 3)
#define FBZMODE_ENABLE_DEPTH_BIAS(val) (((val) >> 16) & 1)
#define FBZMODE_Y_ORIGIN(val) (((val) >> 17) & 1)
#define FBZMODE_ENABLE_ALPHA_PLANES(val) (((val) >> 18) & 1)
#define FBZMODE_ALPHA_DITHER_SUBTRACT(val) (((val) >> 19) & 1)
#define FBZMODE_DEPTH_SOURCE_COMPARE(val) (((val) >> 20) & 1)
#define FBZMODE_DEPTH_FLOAT_SELECT(val) (((val) >> 21) & 1) /* voodoo 2 only */
#define LFBMODE_WRITE_FORMAT(val) (((val) >> 0) & 0xf)
#define LFBMODE_WRITE_BUFFER_SELECT(val) (((val) >> 4) & 3)
#define LFBMODE_READ_BUFFER_SELECT(val) (((val) >> 6) & 3)
#define LFBMODE_ENABLE_PIXEL_PIPELINE(val) (((val) >> 8) & 1)
#define LFBMODE_RGBA_LANES(val) (((val) >> 9) & 3)
#define LFBMODE_WORD_SWAP_WRITES(val) (((val) >> 11) & 1)
#define LFBMODE_BYTE_SWIZZLE_WRITES(val) (((val) >> 12) & 1)
#define LFBMODE_Y_ORIGIN(val) (((val) >> 13) & 1)
#define LFBMODE_WRITE_W_SELECT(val) (((val) >> 14) & 1)
#define LFBMODE_WORD_SWAP_READS(val) (((val) >> 15) & 1)
#define LFBMODE_BYTE_SWIZZLE_READS(val) (((val) >> 16) & 1)
#define CHROMARANGE_BLUE_EXCLUSIVE(val) (((val) >> 24) & 1)
#define CHROMARANGE_GREEN_EXCLUSIVE(val) (((val) >> 25) & 1)
#define CHROMARANGE_RED_EXCLUSIVE(val) (((val) >> 26) & 1)
#define CHROMARANGE_UNION_MODE(val) (((val) >> 27) & 1)
#define CHROMARANGE_ENABLE(val) (((val) >> 28) & 1)
#define FBIINIT0_VGA_PASSTHRU(val) (((val) >> 0) & 1)
#define FBIINIT0_GRAPHICS_RESET(val) (((val) >> 1) & 1)
#define FBIINIT0_FIFO_RESET(val) (((val) >> 2) & 1)
#define FBIINIT0_SWIZZLE_REG_WRITES(val) (((val) >> 3) & 1)
#define FBIINIT0_STALL_PCIE_FOR_HWM(val) (((val) >> 4) & 1)
#define FBIINIT0_PCI_FIFO_LWM(val) (((val) >> 6) & 0x1f)
#define FBIINIT0_LFB_TO_MEMORY_FIFO(val) (((val) >> 11) & 1)
#define FBIINIT0_TEXMEM_TO_MEMORY_FIFO(val) (((val) >> 12) & 1)
#define FBIINIT0_ENABLE_MEMORY_FIFO(val) (((val) >> 13) & 1)
#define FBIINIT0_MEMORY_FIFO_HWM(val) (((val) >> 14) & 0x7ff)
#define FBIINIT0_MEMORY_FIFO_BURST(val) (((val) >> 25) & 0x3f)
#define FBIINIT1_PCI_DEV_FUNCTION(val) (((val) >> 0) & 1)
#define FBIINIT1_PCI_WRITE_WAIT_STATES(val) (((val) >> 1) & 1)
#define FBIINIT1_MULTI_SST1(val) (((val) >> 2) & 1) /* not on voodoo 2 */
#define FBIINIT1_ENABLE_LFB(val) (((val) >> 3) & 1)
#define FBIINIT1_X_VIDEO_TILES(val) (((val) >> 4) & 0xf)
#define FBIINIT1_VIDEO_TIMING_RESET(val) (((val) >> 8) & 1)
#define FBIINIT1_SOFTWARE_OVERRIDE(val) (((val) >> 9) & 1)
#define FBIINIT1_SOFTWARE_HSYNC(val) (((val) >> 10) & 1)
#define FBIINIT1_SOFTWARE_VSYNC(val) (((val) >> 11) & 1)
#define FBIINIT1_SOFTWARE_BLANK(val) (((val) >> 12) & 1)
#define FBIINIT1_DRIVE_VIDEO_TIMING(val) (((val) >> 13) & 1)
#define FBIINIT1_DRIVE_VIDEO_BLANK(val) (((val) >> 14) & 1)
#define FBIINIT1_DRIVE_VIDEO_SYNC(val) (((val) >> 15) & 1)
#define FBIINIT1_DRIVE_VIDEO_DCLK(val) (((val) >> 16) & 1)
#define FBIINIT1_VIDEO_TIMING_VCLK(val) (((val) >> 17) & 1)
#define FBIINIT1_VIDEO_CLK_2X_DELAY(val) (((val) >> 18) & 3)
#define FBIINIT1_VIDEO_TIMING_SOURCE(val) (((val) >> 20) & 3)
#define FBIINIT1_ENABLE_24BPP_OUTPUT(val) (((val) >> 22) & 1)
#define FBIINIT1_ENABLE_SLI(val) (((val) >> 23) & 1)
#define FBIINIT1_X_VIDEO_TILES_BIT5(val) (((val) >> 24) & 1) /* voodoo 2 only */
#define FBIINIT1_ENABLE_EDGE_FILTER(val) (((val) >> 25) & 1)
#define FBIINIT1_INVERT_VID_CLK_2X(val) (((val) >> 26) & 1)
#define FBIINIT1_VID_CLK_2X_SEL_DELAY(val) (((val) >> 27) & 3)
#define FBIINIT1_VID_CLK_DELAY(val) (((val) >> 29) & 3)
#define FBIINIT1_DISABLE_FAST_READAHEAD(val) (((val) >> 31) & 1)
#define FBIINIT2_DISABLE_DITHER_SUB(val) (((val) >> 0) & 1)
#define FBIINIT2_DRAM_BANKING(val) (((val) >> 1) & 1)
#define FBIINIT2_ENABLE_TRIPLE_BUF(val) (((val) >> 4) & 1)
#define FBIINIT2_ENABLE_FAST_RAS_READ(val) (((val) >> 5) & 1)
#define FBIINIT2_ENABLE_GEN_DRAM_OE(val) (((val) >> 6) & 1)
#define FBIINIT2_ENABLE_FAST_READWRITE(val) (((val) >> 7) & 1)
#define FBIINIT2_ENABLE_PASSTHRU_DITHER(val) (((val) >> 8) & 1)
#define FBIINIT2_SWAP_BUFFER_ALGORITHM(val) (((val) >> 9) & 3)
#define FBIINIT2_VIDEO_BUFFER_OFFSET(val) (((val) >> 11) & 0x1ff)
#define FBIINIT2_ENABLE_DRAM_BANKING(val) (((val) >> 20) & 1)
#define FBIINIT2_ENABLE_DRAM_READ_FIFO(val) (((val) >> 21) & 1)
#define FBIINIT2_ENABLE_DRAM_REFRESH(val) (((val) >> 22) & 1)
#define FBIINIT2_REFRESH_LOAD_VALUE(val) (((val) >> 23) & 0x1ff)
#define FBIINIT3_TRI_REGISTER_REMAP(val) (((val) >> 0) & 1)
#define FBIINIT3_VIDEO_FIFO_THRESH(val) (((val) >> 1) & 0x1f)
#define FBIINIT3_DISABLE_TMUS(val) (((val) >> 6) & 1)
#define FBIINIT3_FBI_MEMORY_TYPE(val) (((val) >> 8) & 7)
#define FBIINIT3_VGA_PASS_RESET_VAL(val) (((val) >> 11) & 1)
#define FBIINIT3_HARDCODE_PCI_BASE(val) (((val) >> 12) & 1)
#define FBIINIT3_FBI2TREX_DELAY(val) (((val) >> 13) & 0xf)
#define FBIINIT3_TREX2FBI_DELAY(val) (((val) >> 17) & 0x1f)
#define FBIINIT3_YORIGIN_SUBTRACT(val) (((val) >> 22) & 0x3ff)
#define FBIINIT4_PCI_READ_WAITS(val) (((val) >> 0) & 1)
#define FBIINIT4_ENABLE_LFB_READAHEAD(val) (((val) >> 1) & 1)
#define FBIINIT4_MEMORY_FIFO_LWM(val) (((val) >> 2) & 0x3f)
#define FBIINIT4_MEMORY_FIFO_START_ROW(val) (((val) >> 8) & 0x3ff)
#define FBIINIT4_MEMORY_FIFO_STOP_ROW(val) (((val) >> 18) & 0x3ff)
#define FBIINIT4_VIDEO_CLOCKING_DELAY(val) (((val) >> 29) & 7) /* voodoo 2 only */
#define FBIINIT5_DISABLE_PCI_STOP(val) (((val) >> 0) & 1) /* voodoo 2 only */
#define FBIINIT5_PCI_SLAVE_SPEED(val) (((val) >> 1) & 1) /* voodoo 2 only */
#define FBIINIT5_DAC_DATA_OUTPUT_WIDTH(val) (((val) >> 2) & 1) /* voodoo 2 only */
#define FBIINIT5_DAC_DATA_17_OUTPUT(val) (((val) >> 3) & 1) /* voodoo 2 only */
#define FBIINIT5_DAC_DATA_18_OUTPUT(val) (((val) >> 4) & 1) /* voodoo 2 only */
#define FBIINIT5_GENERIC_STRAPPING(val) (((val) >> 5) & 0xf) /* voodoo 2 only */
#define FBIINIT5_BUFFER_ALLOCATION(val) (((val) >> 9) & 3) /* voodoo 2 only */
#define FBIINIT5_DRIVE_VID_CLK_SLAVE(val) (((val) >> 11) & 1) /* voodoo 2 only */
#define FBIINIT5_DRIVE_DAC_DATA_16(val) (((val) >> 12) & 1) /* voodoo 2 only */
#define FBIINIT5_VCLK_INPUT_SELECT(val) (((val) >> 13) & 1) /* voodoo 2 only */
#define FBIINIT5_MULTI_CVG_DETECT(val) (((val) >> 14) & 1) /* voodoo 2 only */
#define FBIINIT5_SYNC_RETRACE_READS(val) (((val) >> 15) & 1) /* voodoo 2 only */
#define FBIINIT5_ENABLE_RHBORDER_COLOR(val) (((val) >> 16) & 1) /* voodoo 2 only */
#define FBIINIT5_ENABLE_LHBORDER_COLOR(val) (((val) >> 17) & 1) /* voodoo 2 only */
#define FBIINIT5_ENABLE_BVBORDER_COLOR(val) (((val) >> 18) & 1) /* voodoo 2 only */
#define FBIINIT5_ENABLE_TVBORDER_COLOR(val) (((val) >> 19) & 1) /* voodoo 2 only */
#define FBIINIT5_DOUBLE_HORIZ(val) (((val) >> 20) & 1) /* voodoo 2 only */
#define FBIINIT5_DOUBLE_VERT(val) (((val) >> 21) & 1) /* voodoo 2 only */
#define FBIINIT5_ENABLE_16BIT_GAMMA(val) (((val) >> 22) & 1) /* voodoo 2 only */
#define FBIINIT5_INVERT_DAC_HSYNC(val) (((val) >> 23) & 1) /* voodoo 2 only */
#define FBIINIT5_INVERT_DAC_VSYNC(val) (((val) >> 24) & 1) /* voodoo 2 only */
#define FBIINIT5_ENABLE_24BIT_DACDATA(val) (((val) >> 25) & 1) /* voodoo 2 only */
#define FBIINIT5_ENABLE_INTERLACING(val) (((val) >> 26) & 1) /* voodoo 2 only */
#define FBIINIT5_DAC_DATA_18_CONTROL(val) (((val) >> 27) & 1) /* voodoo 2 only */
#define FBIINIT5_RASTERIZER_UNIT_MODE(val) (((val) >> 30) & 3) /* voodoo 2 only */
#define FBIINIT6_WINDOW_ACTIVE_COUNTER(val) (((val) >> 0) & 7) /* voodoo 2 only */
#define FBIINIT6_WINDOW_DRAG_COUNTER(val) (((val) >> 3) & 0x1f) /* voodoo 2 only */
#define FBIINIT6_SLI_SYNC_MASTER(val) (((val) >> 8) & 1) /* voodoo 2 only */
#define FBIINIT6_DAC_DATA_22_OUTPUT(val) (((val) >> 9) & 3) /* voodoo 2 only */
#define FBIINIT6_DAC_DATA_23_OUTPUT(val) (((val) >> 11) & 3) /* voodoo 2 only */
#define FBIINIT6_SLI_SYNCIN_OUTPUT(val) (((val) >> 13) & 3) /* voodoo 2 only */
#define FBIINIT6_SLI_SYNCOUT_OUTPUT(val) (((val) >> 15) & 3) /* voodoo 2 only */
#define FBIINIT6_DAC_RD_OUTPUT(val) (((val) >> 17) & 3) /* voodoo 2 only */
#define FBIINIT6_DAC_WR_OUTPUT(val) (((val) >> 19) & 3) /* voodoo 2 only */
#define FBIINIT6_PCI_FIFO_LWM_RDY(val) (((val) >> 21) & 0x7f) /* voodoo 2 only */
#define FBIINIT6_VGA_PASS_N_OUTPUT(val) (((val) >> 28) & 3) /* voodoo 2 only */
#define FBIINIT6_X_VIDEO_TILES_BIT0(val) (((val) >> 30) & 1) /* voodoo 2 only */
#define FBIINIT7_GENERIC_STRAPPING(val) (((val) >> 0) & 0xff) /* voodoo 2 only */
#define FBIINIT7_CMDFIFO_ENABLE(val) (((val) >> 8) & 1) /* voodoo 2 only */
#define FBIINIT7_CMDFIFO_MEMORY_STORE(val) (((val) >> 9) & 1) /* voodoo 2 only */
#define FBIINIT7_DISABLE_CMDFIFO_HOLES(val) (((val) >> 10) & 1) /* voodoo 2 only */
#define FBIINIT7_CMDFIFO_READ_THRESH(val) (((val) >> 11) & 0x1f) /* voodoo 2 only */
#define FBIINIT7_SYNC_CMDFIFO_WRITES(val) (((val) >> 16) & 1) /* voodoo 2 only */
#define FBIINIT7_SYNC_CMDFIFO_READS(val) (((val) >> 17) & 1) /* voodoo 2 only */
#define FBIINIT7_RESET_PCI_PACKER(val) (((val) >> 18) & 1) /* voodoo 2 only */
#define FBIINIT7_ENABLE_CHROMA_STUFF(val) (((val) >> 19) & 1) /* voodoo 2 only */
#define FBIINIT7_CMDFIFO_PCI_TIMEOUT(val) (((val) >> 20) & 0x7f) /* voodoo 2 only */
#define FBIINIT7_ENABLE_TEXTURE_BURST(val) (((val) >> 27) & 1) /* voodoo 2 only */
#define TEXMODE_ENABLE_PERSPECTIVE(val) (((val) >> 0) & 1)
#define TEXMODE_MINIFICATION_FILTER(val) (((val) >> 1) & 1)
#define TEXMODE_MAGNIFICATION_FILTER(val) (((val) >> 2) & 1)
#define TEXMODE_CLAMP_NEG_W(val) (((val) >> 3) & 1)
#define TEXMODE_ENABLE_LOD_DITHER(val) (((val) >> 4) & 1)
#define TEXMODE_NCC_TABLE_SELECT(val) (((val) >> 5) & 1)
#define TEXMODE_CLAMP_S(val) (((val) >> 6) & 1)
#define TEXMODE_CLAMP_T(val) (((val) >> 7) & 1)
#define TEXMODE_FORMAT(val) (((val) >> 8) & 0xf)
#define TEXMODE_TC_ZERO_OTHER(val) (((val) >> 12) & 1)
#define TEXMODE_TC_SUB_CLOCAL(val) (((val) >> 13) & 1)
#define TEXMODE_TC_MSELECT(val) (((val) >> 14) & 7)
#define TEXMODE_TC_REVERSE_BLEND(val) (((val) >> 17) & 1)
#define TEXMODE_TC_ADD_ACLOCAL(val) (((val) >> 18) & 3)
#define TEXMODE_TC_INVERT_OUTPUT(val) (((val) >> 20) & 1)
#define TEXMODE_TCA_ZERO_OTHER(val) (((val) >> 21) & 1)
#define TEXMODE_TCA_SUB_CLOCAL(val) (((val) >> 22) & 1)
#define TEXMODE_TCA_MSELECT(val) (((val) >> 23) & 7)
#define TEXMODE_TCA_REVERSE_BLEND(val) (((val) >> 26) & 1)
#define TEXMODE_TCA_ADD_ACLOCAL(val) (((val) >> 27) & 3)
#define TEXMODE_TCA_INVERT_OUTPUT(val) (((val) >> 29) & 1)
#define TEXMODE_TRILINEAR(val) (((val) >> 30) & 1)
#define TEXMODE_SEQ_8_DOWNLD(val) (((val) >> 31) & 1)
#define TEXLOD_LODMIN(val) (((val) >> 0) & 0x3f)
#define TEXLOD_LODMAX(val) (((val) >> 6) & 0x3f)
#define TEXLOD_LODBIAS(val) (((val) >> 12) & 0x3f)
#define TEXLOD_LOD_ODD(val) (((val) >> 18) & 1)
#define TEXLOD_LOD_TSPLIT(val) (((val) >> 19) & 1)
#define TEXLOD_LOD_S_IS_WIDER(val) (((val) >> 20) & 1)
#define TEXLOD_LOD_ASPECT(val) (((val) >> 21) & 3)
#define TEXLOD_LOD_ZEROFRAC(val) (((val) >> 23) & 1)
#define TEXLOD_TMULTIBASEADDR(val) (((val) >> 24) & 1)
#define TEXLOD_TDATA_SWIZZLE(val) (((val) >> 25) & 1)
#define TEXLOD_TDATA_SWAP(val) (((val) >> 26) & 1)
#define TEXLOD_TDIRECT_WRITE(val) (((val) >> 27) & 1) /* Voodoo 2 only */
#define TEXDETAIL_DETAIL_MAX(val) (((val) >> 0) & 0xff)
#define TEXDETAIL_DETAIL_BIAS(val) (((val) >> 8) & 0x3f)
#define TEXDETAIL_DETAIL_SCALE(val) (((val) >> 14) & 7)
#define TEXDETAIL_RGB_MIN_FILTER(val) (((val) >> 17) & 1) /* Voodoo 2 only */
#define TEXDETAIL_RGB_MAG_FILTER(val) (((val) >> 18) & 1) /* Voodoo 2 only */
#define TEXDETAIL_ALPHA_MIN_FILTER(val) (((val) >> 19) & 1) /* Voodoo 2 only */
#define TEXDETAIL_ALPHA_MAG_FILTER(val) (((val) >> 20) & 1) /* Voodoo 2 only */
#define TEXDETAIL_SEPARATE_RGBA_FILTER(val) (((val) >> 21) & 1) /* Voodoo 2 only */
#define TREXINIT_SEND_TMU_CONFIG(val) (((val) >> 18) & 1)
/*************************************
*
* Core types
*
*************************************/
typedef UINT32 rgb_t;
struct rgba
{
#ifndef WORDS_BIGENDIAN
UINT8 b, g, r, a;
#else
UINT8 a, r, g, b;
#endif
};
union voodoo_reg
{
INT32 i;
UINT32 u;
float f;
rgba rgb;
};
typedef voodoo_reg rgb_union;
/* note that this structure is an even 64 bytes long */
struct stats_block {
int32_t pixels_in; // pixels in statistic
int32_t pixels_out; // pixels out statistic
int32_t chroma_fail; // chroma test fail statistic
int32_t zfunc_fail; // z function test fail statistic
int32_t afunc_fail; // alpha function test fail statistic
// int32_t clip_fail; // clipping fail statistic
// int32_t stipple_count; // stipple statistic
int32_t filler[64 / 4 - 5]; // pad this structure to 64 bytes
};
static_assert(sizeof(stats_block) == 64);
struct fifo_state
{
INT32 size; /* size of the FIFO */
};
struct pci_state
{
fifo_state fifo; /* PCI FIFO */
UINT32 init_enable; /* initEnable value */
bool op_pending; /* true if an operation is pending */
};
struct ncc_table
{
bool dirty; /* is the texel lookup dirty? */
voodoo_reg * reg; /* pointer to our registers */
INT32 ir[4], ig[4], ib[4]; /* I values for R,G,B */
INT32 qr[4], qg[4], qb[4]; /* Q values for R,G,B */
INT32 y[16]; /* Y values */
rgb_t * palette; /* pointer to associated RGB palette */
rgb_t * palettea; /* pointer to associated ARGB palette */
rgb_t texel[256]; /* texel lookup */
};
struct tmu_state
{
UINT8 * ram; /* pointer to our RAM */
UINT32 mask; /* mask to apply to pointers */
voodoo_reg * reg; /* pointer to our register base */
bool regdirty; /* true if the LOD/mode/base registers have changed */
enum { texaddr_mask = 0x0fffff, texaddr_shift = 3 };
//UINT32 texaddr_mask; /* mask for texture address */
//UINT8 texaddr_shift; /* shift for texture address */
INT64 starts, startt; /* starting S,T (14.18) */
INT64 startw; /* starting W (2.30) */
INT64 dsdx, dtdx; /* delta S,T per X */
INT64 dwdx; /* delta W per X */
INT64 dsdy, dtdy; /* delta S,T per Y */
INT64 dwdy; /* delta W per Y */
INT32 lodmin, lodmax; /* min, max LOD values */
INT32 lodbias; /* LOD bias */
UINT32 lodmask; /* mask of available LODs */
UINT32 lodoffset[9]; /* offset of texture base for each LOD */
INT32 lodbasetemp; /* lodbase calculated and used during raster */
INT32 detailmax; /* detail clamp */
INT32 detailbias; /* detail bias */
UINT8 detailscale; /* detail scale */
UINT32 wmask; /* mask for the current texture width */
UINT32 hmask; /* mask for the current texture height */
UINT8 bilinear_mask; /* mask for bilinear resolution (0xf0 for V1, 0xff for V2) */
ncc_table ncc[2]; /* two NCC tables */
const rgb_t * lookup; /* currently selected lookup */
const rgb_t * texel[16]; /* texel lookups for each format */
rgb_t palette[256]; /* palette lookup table */
rgb_t palettea[256]; /* palette+alpha lookup table */
};
struct tmu_shared_state
{
rgb_t rgb332[256]; /* RGB 3-3-2 lookup table */
rgb_t alpha8[256]; /* alpha 8-bit lookup table */
rgb_t int8[256]; /* intensity 8-bit lookup table */
rgb_t ai44[256]; /* alpha, intensity 4-4 lookup table */
rgb_t rgb565[65536]; /* RGB 5-6-5 lookup table */
rgb_t argb1555[65536]; /* ARGB 1-5-5-5 lookup table */
rgb_t argb4444[65536]; /* ARGB 4-4-4-4 lookup table */
};
struct setup_vertex
{
float x, y; /* X, Y coordinates */
float a, r, g, b; /* A, R, G, B values */
float z, wb; /* Z and broadcast W values */
float w0, s0, t0; /* W, S, T for TMU 0 */
float w1, s1, t1; /* W, S, T for TMU 1 */
};
struct fbi_state
{
UINT8 * ram; /* pointer to frame buffer RAM */
UINT32 mask; /* mask to apply to pointers */
UINT32 rgboffs[3]; /* word offset to 3 RGB buffers */
UINT32 auxoffs; /* word offset to 1 aux buffer */
UINT8 frontbuf; /* front buffer index */
UINT8 backbuf; /* back buffer index */
UINT32 yorigin; /* Y origin subtract value */
UINT32 width; /* width of current frame buffer */
UINT32 height; /* height of current frame buffer */
//UINT32 xoffs; /* horizontal offset (back porch) */
//UINT32 yoffs; /* vertical offset (back porch) */
//UINT32 vsyncscan; /* vertical sync scanline */
UINT32 rowpixels; /* pixels per row */
UINT32 tile_width; /* width of video tiles */
UINT32 tile_height; /* height of video tiles */
UINT32 x_tiles; /* number of tiles in the X direction */
UINT8 vblank; /* VBLANK state */
bool vblank_dont_swap; /* don't actually swap when we hit this point */
bool vblank_flush_pending;
/* triangle setup info */
INT16 ax, ay; /* vertex A x,y (12.4) */
INT16 bx, by; /* vertex B x,y (12.4) */
INT16 cx, cy; /* vertex C x,y (12.4) */
INT32 startr, startg, startb, starta; /* starting R,G,B,A (12.12) */
INT32 startz; /* starting Z (20.12) */
INT64 startw; /* starting W (16.32) */
INT32 drdx, dgdx, dbdx, dadx; /* delta R,G,B,A per X */
INT32 dzdx; /* delta Z per X */
INT64 dwdx; /* delta W per X */
INT32 drdy, dgdy, dbdy, dady; /* delta R,G,B,A per Y */
INT32 dzdy; /* delta Z per Y */
INT64 dwdy; /* delta W per Y */
stats_block lfb_stats; /* LFB-access statistics */
UINT8 sverts; /* number of vertices ready */
setup_vertex svert[3]; /* 3 setup vertices */
fifo_state fifo; /* framebuffer memory fifo */
UINT8 fogblend[64]; /* 64-entry fog table */
UINT8 fogdelta[64]; /* 64-entry fog table */
UINT8 fogdelta_mask; /* mask for for delta (0xff for V1, 0xfc for V2) */
//rgb_t clut[512]; /* clut gamma data */
};
struct dac_state
{
UINT8 reg[8]; /* 8 registers */
UINT8 read_result; /* pending read result */
};
#ifdef C_ENABLE_VOODOO_OPENGL
#ifndef GLhandleARB
#ifdef __APPLE__
typedef void* GLhandleARB;
#else
typedef unsigned int GLhandleARB;
#endif /* __APPLE__ */
#endif /* GLhandleARB */
struct raster_info
{
raster_info *next; /* pointer to next entry with the same hash */
#ifdef C_ENABLE_VOODOO_DEBUG
bool is_generic; /* true if this is one of the generic rasterizers */
UINT8 display; /* display index */
UINT32 hits; /* how many hits (pixels) we've used this for */
UINT32 polys; /* how many polys we've used this for */
#endif
UINT32 eff_color_path; /* effective fbzColorPath value */
UINT32 eff_alpha_mode; /* effective alphaMode value */
UINT32 eff_fog_mode; /* effective fogMode value */
UINT32 eff_fbz_mode; /* effective fbzMode value */
UINT32 eff_tex_mode_0; /* effective textureMode value for TMU #0 */
UINT32 eff_tex_mode_1; /* effective textureMode value for TMU #1 */
bool shader_ready;
GLhandleARB so_shader_program;
GLhandleARB so_vertex_shader;
GLhandleARB so_fragment_shader;
INT32* shader_ulocations;
};
#endif
struct draw_state
{
double frame_start;
float vfreq;
bool override_on;
bool screen_update_requested;
bool screen_update_pending;
};
struct triangle_worker
{
std::atomic_bool threads_active;
bool use_threads, disable_bilinear_filter;
UINT16 *drawbuf;
poly_vertex v1, v2, v3;
INT32 v1y, v3y, totalpix;
std::array<std::thread, TRIANGLE_THREADS> threads;
std::array<Semaphore, TRIANGLE_THREADS> sembegin;
Semaphore semdone;
int done_count;
};
struct voodoo_state
{
uint8_t chipmask = {}; /* mask for which chips are available */
voodoo_reg reg[0x400] = {}; /* raw registers */
const uint8_t* regaccess = {}; /* register access array */
bool alt_regmap = {}; /* enable alternate register map? */
pci_state pci = {}; /* PCI state */
dac_state dac = {}; /* DAC state */
fbi_state fbi = {}; /* FBI states */
tmu_state tmu[MAX_TMU] = {}; /* TMU states */
tmu_shared_state tmushare = {}; /* TMU shared state */
uint32_t tmu_config = {};
#ifdef C_ENABLE_VOODOO_OPENGL
UINT16 next_rasterizer = {}; /* next rasterizer index */
raster_info rasterizer[MAX_RASTERIZERS] = {}; /* array of rasterizers */
raster_info* raster_hash[RASTER_HASH_SIZE] = {}; /* hash table of
rasterizers */
#endif
stats_block thread_stats[TRIANGLE_WORKERS] = {}; /* per-thread
statistics */
bool send_config = {};
bool clock_enabled = {};
bool output_on = {};
bool active = {};
#ifdef C_ENABLE_VOODOO_OPENGL
bool ogl = {};
bool ogl_dimchange = {};
bool ogl_palette_changed = {};
#endif
#ifdef C_ENABLE_VOODOO_DEBUG
const char *const * regnames; /* register names array */
#endif
draw_state draw = {};
triangle_worker tworker = {};
};
#ifdef C_ENABLE_VOODOO_OPENGL
struct poly_extra_data
{
voodoo_state * state; /* pointer back to the voodoo state */
raster_info * info; /* pointer to rasterizer information */
INT16 ax, ay; /* vertex A x,y (12.4) */
INT32 startr, startg, startb, starta; /* starting R,G,B,A (12.12) */
INT32 startz; /* starting Z (20.12) */
INT64 startw; /* starting W (16.32) */