forked from FFmpeg/FFmpeg
/
postprocess_altivec_template.c
1210 lines (1089 loc) · 53 KB
/
postprocess_altivec_template.c
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
/*
* AltiVec optimizations (C) 2004 Romain Dolbeau <romain@dolbeau.org>
*
* based on code by Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at)
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/avutil.h"
#define ALTIVEC_TRANSPOSE_8x8_SHORT(src_a,src_b,src_c,src_d,src_e,src_f,src_g,src_h) \
do { \
__typeof__(src_a) tempA1, tempB1, tempC1, tempD1; \
__typeof__(src_a) tempE1, tempF1, tempG1, tempH1; \
__typeof__(src_a) tempA2, tempB2, tempC2, tempD2; \
__typeof__(src_a) tempE2, tempF2, tempG2, tempH2; \
tempA1 = vec_mergeh (src_a, src_e); \
tempB1 = vec_mergel (src_a, src_e); \
tempC1 = vec_mergeh (src_b, src_f); \
tempD1 = vec_mergel (src_b, src_f); \
tempE1 = vec_mergeh (src_c, src_g); \
tempF1 = vec_mergel (src_c, src_g); \
tempG1 = vec_mergeh (src_d, src_h); \
tempH1 = vec_mergel (src_d, src_h); \
tempA2 = vec_mergeh (tempA1, tempE1); \
tempB2 = vec_mergel (tempA1, tempE1); \
tempC2 = vec_mergeh (tempB1, tempF1); \
tempD2 = vec_mergel (tempB1, tempF1); \
tempE2 = vec_mergeh (tempC1, tempG1); \
tempF2 = vec_mergel (tempC1, tempG1); \
tempG2 = vec_mergeh (tempD1, tempH1); \
tempH2 = vec_mergel (tempD1, tempH1); \
src_a = vec_mergeh (tempA2, tempE2); \
src_b = vec_mergel (tempA2, tempE2); \
src_c = vec_mergeh (tempB2, tempF2); \
src_d = vec_mergel (tempB2, tempF2); \
src_e = vec_mergeh (tempC2, tempG2); \
src_f = vec_mergel (tempC2, tempG2); \
src_g = vec_mergeh (tempD2, tempH2); \
src_h = vec_mergel (tempD2, tempH2); \
} while (0)
static inline int vertClassify_altivec(uint8_t src[], int stride, PPContext *c) {
/*
this code makes no assumption on src or stride.
One could remove the recomputation of the perm
vector by assuming (stride % 16) == 0, unfortunately
this is not always true.
*/
short data_0 = ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;
DECLARE_ALIGNED(16, short, data)[8] =
{
data_0,
data_0 * 2 + 1,
c->QP * 2,
c->QP * 4
};
int numEq;
uint8_t *src2 = src;
vector signed short v_dcOffset;
vector signed short v2QP;
vector unsigned short v4QP;
vector unsigned short v_dcThreshold;
const int properStride = (stride % 16);
const int srcAlign = ((unsigned long)src2 % 16);
const int two_vectors = ((srcAlign > 8) || properStride) ? 1 : 0;
const vector signed int zero = vec_splat_s32(0);
const vector signed short mask = vec_splat_s16(1);
vector signed int v_numEq = vec_splat_s32(0);
vector signed short v_data = vec_ld(0, data);
vector signed short v_srcAss0, v_srcAss1, v_srcAss2, v_srcAss3,
v_srcAss4, v_srcAss5, v_srcAss6, v_srcAss7;
//FIXME avoid this mess if possible
register int j0 = 0,
j1 = stride,
j2 = 2 * stride,
j3 = 3 * stride,
j4 = 4 * stride,
j5 = 5 * stride,
j6 = 6 * stride,
j7 = 7 * stride;
vector unsigned char v_srcA0, v_srcA1, v_srcA2, v_srcA3,
v_srcA4, v_srcA5, v_srcA6, v_srcA7;
v_dcOffset = vec_splat(v_data, 0);
v_dcThreshold = (vector unsigned short)vec_splat(v_data, 1);
v2QP = vec_splat(v_data, 2);
v4QP = (vector unsigned short)vec_splat(v_data, 3);
src2 += stride * 4;
#define LOAD_LINE(i) \
{ \
vector unsigned char perm##i = vec_lvsl(j##i, src2); \
vector unsigned char v_srcA2##i; \
vector unsigned char v_srcA1##i = vec_ld(j##i, src2); \
if (two_vectors) \
v_srcA2##i = vec_ld(j##i + 16, src2); \
v_srcA##i = \
vec_perm(v_srcA1##i, v_srcA2##i, perm##i); \
v_srcAss##i = \
(vector signed short)vec_mergeh((vector signed char)zero, \
(vector signed char)v_srcA##i); }
#define LOAD_LINE_ALIGNED(i) \
v_srcA##i = vec_ld(j##i, src2); \
v_srcAss##i = \
(vector signed short)vec_mergeh((vector signed char)zero, \
(vector signed char)v_srcA##i)
/* Special-casing the aligned case is worthwhile, as all calls from
* the (transposed) horizontable deblocks will be aligned, in addition
* to the naturally aligned vertical deblocks. */
if (properStride && srcAlign) {
LOAD_LINE_ALIGNED(0);
LOAD_LINE_ALIGNED(1);
LOAD_LINE_ALIGNED(2);
LOAD_LINE_ALIGNED(3);
LOAD_LINE_ALIGNED(4);
LOAD_LINE_ALIGNED(5);
LOAD_LINE_ALIGNED(6);
LOAD_LINE_ALIGNED(7);
} else {
LOAD_LINE(0);
LOAD_LINE(1);
LOAD_LINE(2);
LOAD_LINE(3);
LOAD_LINE(4);
LOAD_LINE(5);
LOAD_LINE(6);
LOAD_LINE(7);
}
#undef LOAD_LINE
#undef LOAD_LINE_ALIGNED
#define ITER(i, j) \
const vector signed short v_diff##i = \
vec_sub(v_srcAss##i, v_srcAss##j); \
const vector signed short v_sum##i = \
vec_add(v_diff##i, v_dcOffset); \
const vector signed short v_comp##i = \
(vector signed short)vec_cmplt((vector unsigned short)v_sum##i, \
v_dcThreshold); \
const vector signed short v_part##i = vec_and(mask, v_comp##i);
{
ITER(0, 1)
ITER(1, 2)
ITER(2, 3)
ITER(3, 4)
ITER(4, 5)
ITER(5, 6)
ITER(6, 7)
v_numEq = vec_sum4s(v_part0, v_numEq);
v_numEq = vec_sum4s(v_part1, v_numEq);
v_numEq = vec_sum4s(v_part2, v_numEq);
v_numEq = vec_sum4s(v_part3, v_numEq);
v_numEq = vec_sum4s(v_part4, v_numEq);
v_numEq = vec_sum4s(v_part5, v_numEq);
v_numEq = vec_sum4s(v_part6, v_numEq);
}
#undef ITER
v_numEq = vec_sums(v_numEq, zero);
v_numEq = vec_splat(v_numEq, 3);
vec_ste(v_numEq, 0, &numEq);
if (numEq > c->ppMode.flatnessThreshold){
const vector unsigned char mmoP1 = (const vector unsigned char)
{0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f,
0x00, 0x01, 0x12, 0x13, 0x08, 0x09, 0x1A, 0x1B};
const vector unsigned char mmoP2 = (const vector unsigned char)
{0x04, 0x05, 0x16, 0x17, 0x0C, 0x0D, 0x1E, 0x1F,
0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f};
const vector unsigned char mmoP = (const vector unsigned char)
vec_lvsl(8, (unsigned char*)0);
vector signed short mmoL1 = vec_perm(v_srcAss0, v_srcAss2, mmoP1);
vector signed short mmoL2 = vec_perm(v_srcAss4, v_srcAss6, mmoP2);
vector signed short mmoL = vec_perm(mmoL1, mmoL2, mmoP);
vector signed short mmoR1 = vec_perm(v_srcAss5, v_srcAss7, mmoP1);
vector signed short mmoR2 = vec_perm(v_srcAss1, v_srcAss3, mmoP2);
vector signed short mmoR = vec_perm(mmoR1, mmoR2, mmoP);
vector signed short mmoDiff = vec_sub(mmoL, mmoR);
vector unsigned short mmoSum = (vector unsigned short)vec_add(mmoDiff, v2QP);
if (vec_any_gt(mmoSum, v4QP))
return 0;
else
return 1;
}
else return 2;
}
static inline void doVertLowPass_altivec(uint8_t *src, int stride, PPContext *c) {
/*
this code makes no assumption on src or stride.
One could remove the recomputation of the perm
vector by assuming (stride % 16) == 0, unfortunately
this is not always true. Quite a lot of load/stores
can be removed by assuming proper alignment of
src & stride :-(
*/
uint8_t *src2 = src;
const vector signed int zero = vec_splat_s32(0);
const int properStride = (stride % 16);
const int srcAlign = ((unsigned long)src2 % 16);
DECLARE_ALIGNED(16, short, qp)[8] = {c->QP};
vector signed short vqp = vec_ld(0, qp);
vector signed short vb0, vb1, vb2, vb3, vb4, vb5, vb6, vb7, vb8, vb9;
vector unsigned char vbA0, av_uninit(vbA1), av_uninit(vbA2), av_uninit(vbA3), av_uninit(vbA4), av_uninit(vbA5), av_uninit(vbA6), av_uninit(vbA7), av_uninit(vbA8), vbA9;
vector unsigned char vbB0, av_uninit(vbB1), av_uninit(vbB2), av_uninit(vbB3), av_uninit(vbB4), av_uninit(vbB5), av_uninit(vbB6), av_uninit(vbB7), av_uninit(vbB8), vbB9;
vector unsigned char vbT0, vbT1, vbT2, vbT3, vbT4, vbT5, vbT6, vbT7, vbT8, vbT9;
vector unsigned char perml0, perml1, perml2, perml3, perml4,
perml5, perml6, perml7, perml8, perml9;
register int j0 = 0,
j1 = stride,
j2 = 2 * stride,
j3 = 3 * stride,
j4 = 4 * stride,
j5 = 5 * stride,
j6 = 6 * stride,
j7 = 7 * stride,
j8 = 8 * stride,
j9 = 9 * stride;
vqp = vec_splat(vqp, 0);
src2 += stride*3;
#define LOAD_LINE(i) \
perml##i = vec_lvsl(i * stride, src2); \
vbA##i = vec_ld(i * stride, src2); \
vbB##i = vec_ld(i * stride + 16, src2); \
vbT##i = vec_perm(vbA##i, vbB##i, perml##i); \
vb##i = \
(vector signed short)vec_mergeh((vector unsigned char)zero, \
(vector unsigned char)vbT##i)
#define LOAD_LINE_ALIGNED(i) \
vbT##i = vec_ld(j##i, src2); \
vb##i = \
(vector signed short)vec_mergeh((vector signed char)zero, \
(vector signed char)vbT##i)
/* Special-casing the aligned case is worthwhile, as all calls from
* the (transposed) horizontable deblocks will be aligned, in addition
* to the naturally aligned vertical deblocks. */
if (properStride && srcAlign) {
LOAD_LINE_ALIGNED(0);
LOAD_LINE_ALIGNED(1);
LOAD_LINE_ALIGNED(2);
LOAD_LINE_ALIGNED(3);
LOAD_LINE_ALIGNED(4);
LOAD_LINE_ALIGNED(5);
LOAD_LINE_ALIGNED(6);
LOAD_LINE_ALIGNED(7);
LOAD_LINE_ALIGNED(8);
LOAD_LINE_ALIGNED(9);
} else {
LOAD_LINE(0);
LOAD_LINE(1);
LOAD_LINE(2);
LOAD_LINE(3);
LOAD_LINE(4);
LOAD_LINE(5);
LOAD_LINE(6);
LOAD_LINE(7);
LOAD_LINE(8);
LOAD_LINE(9);
}
#undef LOAD_LINE
#undef LOAD_LINE_ALIGNED
{
const vector unsigned short v_2 = vec_splat_u16(2);
const vector unsigned short v_4 = vec_splat_u16(4);
const vector signed short v_diff01 = vec_sub(vb0, vb1);
const vector unsigned short v_cmp01 =
(const vector unsigned short) vec_cmplt(vec_abs(v_diff01), vqp);
const vector signed short v_first = vec_sel(vb1, vb0, v_cmp01);
const vector signed short v_diff89 = vec_sub(vb8, vb9);
const vector unsigned short v_cmp89 =
(const vector unsigned short) vec_cmplt(vec_abs(v_diff89), vqp);
const vector signed short v_last = vec_sel(vb8, vb9, v_cmp89);
const vector signed short temp01 = vec_mladd(v_first, (vector signed short)v_4, vb1);
const vector signed short temp02 = vec_add(vb2, vb3);
const vector signed short temp03 = vec_add(temp01, (vector signed short)v_4);
const vector signed short v_sumsB0 = vec_add(temp02, temp03);
const vector signed short temp11 = vec_sub(v_sumsB0, v_first);
const vector signed short v_sumsB1 = vec_add(temp11, vb4);
const vector signed short temp21 = vec_sub(v_sumsB1, v_first);
const vector signed short v_sumsB2 = vec_add(temp21, vb5);
const vector signed short temp31 = vec_sub(v_sumsB2, v_first);
const vector signed short v_sumsB3 = vec_add(temp31, vb6);
const vector signed short temp41 = vec_sub(v_sumsB3, v_first);
const vector signed short v_sumsB4 = vec_add(temp41, vb7);
const vector signed short temp51 = vec_sub(v_sumsB4, vb1);
const vector signed short v_sumsB5 = vec_add(temp51, vb8);
const vector signed short temp61 = vec_sub(v_sumsB5, vb2);
const vector signed short v_sumsB6 = vec_add(temp61, v_last);
const vector signed short temp71 = vec_sub(v_sumsB6, vb3);
const vector signed short v_sumsB7 = vec_add(temp71, v_last);
const vector signed short temp81 = vec_sub(v_sumsB7, vb4);
const vector signed short v_sumsB8 = vec_add(temp81, v_last);
const vector signed short temp91 = vec_sub(v_sumsB8, vb5);
const vector signed short v_sumsB9 = vec_add(temp91, v_last);
#define COMPUTE_VR(i, j, k) \
const vector signed short temps1##i = \
vec_add(v_sumsB##i, v_sumsB##k); \
const vector signed short temps2##i = \
vec_mladd(vb##j, (vector signed short)v_2, temps1##i); \
const vector signed short vr##j = vec_sra(temps2##i, v_4)
COMPUTE_VR(0, 1, 2);
COMPUTE_VR(1, 2, 3);
COMPUTE_VR(2, 3, 4);
COMPUTE_VR(3, 4, 5);
COMPUTE_VR(4, 5, 6);
COMPUTE_VR(5, 6, 7);
COMPUTE_VR(6, 7, 8);
COMPUTE_VR(7, 8, 9);
const vector signed char neg1 = vec_splat_s8(-1);
const vector unsigned char permHH = (const vector unsigned char){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F};
#define PACK_AND_STORE(i) \
{ const vector unsigned char perms##i = \
vec_lvsr(i * stride, src2); \
const vector unsigned char vf##i = \
vec_packsu(vr##i, (vector signed short)zero); \
const vector unsigned char vg##i = \
vec_perm(vf##i, vbT##i, permHH); \
const vector unsigned char mask##i = \
vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms##i); \
const vector unsigned char vg2##i = \
vec_perm(vg##i, vg##i, perms##i); \
const vector unsigned char svA##i = \
vec_sel(vbA##i, vg2##i, mask##i); \
const vector unsigned char svB##i = \
vec_sel(vg2##i, vbB##i, mask##i); \
vec_st(svA##i, i * stride, src2); \
vec_st(svB##i, i * stride + 16, src2);}
#define PACK_AND_STORE_ALIGNED(i) \
{ const vector unsigned char vf##i = \
vec_packsu(vr##i, (vector signed short)zero); \
const vector unsigned char vg##i = \
vec_perm(vf##i, vbT##i, permHH); \
vec_st(vg##i, i * stride, src2);}
/* Special-casing the aligned case is worthwhile, as all calls from
* the (transposed) horizontable deblocks will be aligned, in addition
* to the naturally aligned vertical deblocks. */
if (properStride && srcAlign) {
PACK_AND_STORE_ALIGNED(1)
PACK_AND_STORE_ALIGNED(2)
PACK_AND_STORE_ALIGNED(3)
PACK_AND_STORE_ALIGNED(4)
PACK_AND_STORE_ALIGNED(5)
PACK_AND_STORE_ALIGNED(6)
PACK_AND_STORE_ALIGNED(7)
PACK_AND_STORE_ALIGNED(8)
} else {
PACK_AND_STORE(1)
PACK_AND_STORE(2)
PACK_AND_STORE(3)
PACK_AND_STORE(4)
PACK_AND_STORE(5)
PACK_AND_STORE(6)
PACK_AND_STORE(7)
PACK_AND_STORE(8)
}
#undef PACK_AND_STORE
#undef PACK_AND_STORE_ALIGNED
}
}
static inline void doVertDefFilter_altivec(uint8_t src[], int stride, PPContext *c) {
/*
this code makes no assumption on src or stride.
One could remove the recomputation of the perm
vector by assuming (stride % 16) == 0, unfortunately
this is not always true. Quite a lot of load/stores
can be removed by assuming proper alignment of
src & stride :-(
*/
uint8_t *src2 = src + stride*3;
const vector signed int zero = vec_splat_s32(0);
DECLARE_ALIGNED(16, short, qp)[8] = {8*c->QP};
vector signed short vqp = vec_splat(
(vector signed short)vec_ld(0, qp), 0);
#define LOAD_LINE(i) \
const vector unsigned char perm##i = \
vec_lvsl(i * stride, src2); \
const vector unsigned char vbA##i = \
vec_ld(i * stride, src2); \
const vector unsigned char vbB##i = \
vec_ld(i * stride + 16, src2); \
const vector unsigned char vbT##i = \
vec_perm(vbA##i, vbB##i, perm##i); \
const vector signed short vb##i = \
(vector signed short)vec_mergeh((vector unsigned char)zero, \
(vector unsigned char)vbT##i)
LOAD_LINE(1);
LOAD_LINE(2);
LOAD_LINE(3);
LOAD_LINE(4);
LOAD_LINE(5);
LOAD_LINE(6);
LOAD_LINE(7);
LOAD_LINE(8);
#undef LOAD_LINE
const vector signed short v_1 = vec_splat_s16(1);
const vector signed short v_2 = vec_splat_s16(2);
const vector signed short v_5 = vec_splat_s16(5);
const vector signed short v_32 = vec_sl(v_1,
(vector unsigned short)v_5);
/* middle energy */
const vector signed short l3minusl6 = vec_sub(vb3, vb6);
const vector signed short l5minusl4 = vec_sub(vb5, vb4);
const vector signed short twotimes_l3minusl6 = vec_mladd(v_2, l3minusl6, (vector signed short)zero);
const vector signed short mE = vec_mladd(v_5, l5minusl4, twotimes_l3minusl6);
const vector signed short absmE = vec_abs(mE);
/* left & right energy */
const vector signed short l1minusl4 = vec_sub(vb1, vb4);
const vector signed short l3minusl2 = vec_sub(vb3, vb2);
const vector signed short l5minusl8 = vec_sub(vb5, vb8);
const vector signed short l7minusl6 = vec_sub(vb7, vb6);
const vector signed short twotimes_l1minusl4 = vec_mladd(v_2, l1minusl4, (vector signed short)zero);
const vector signed short twotimes_l5minusl8 = vec_mladd(v_2, l5minusl8, (vector signed short)zero);
const vector signed short lE = vec_mladd(v_5, l3minusl2, twotimes_l1minusl4);
const vector signed short rE = vec_mladd(v_5, l7minusl6, twotimes_l5minusl8);
/* d */
const vector signed short ddiff = vec_sub(absmE,
vec_min(vec_abs(lE),
vec_abs(rE)));
const vector signed short ddiffclamp = vec_max(ddiff, (vector signed short)zero);
const vector signed short dtimes64 = vec_mladd(v_5, ddiffclamp, v_32);
const vector signed short d = vec_sra(dtimes64, vec_splat_u16(6));
const vector signed short minusd = vec_sub((vector signed short)zero, d);
const vector signed short finald = vec_sel(minusd,
d,
vec_cmpgt(vec_sub((vector signed short)zero, mE),
(vector signed short)zero));
/* q */
const vector signed short qtimes2 = vec_sub(vb4, vb5);
/* for a shift right to behave like /2, we need to add one
to all negative integer */
const vector signed short rounddown = vec_sel((vector signed short)zero,
v_1,
vec_cmplt(qtimes2, (vector signed short)zero));
const vector signed short q = vec_sra(vec_add(qtimes2, rounddown), vec_splat_u16(1));
/* clamp */
const vector signed short dclamp_P1 = vec_max((vector signed short)zero, finald);
const vector signed short dclamp_P = vec_min(dclamp_P1, q);
const vector signed short dclamp_N1 = vec_min((vector signed short)zero, finald);
const vector signed short dclamp_N = vec_max(dclamp_N1, q);
const vector signed short dclampedfinal = vec_sel(dclamp_N,
dclamp_P,
vec_cmpgt(q, (vector signed short)zero));
const vector signed short dornotd = vec_sel((vector signed short)zero,
dclampedfinal,
vec_cmplt(absmE, vqp));
/* add/subtract to l4 and l5 */
const vector signed short vb4minusd = vec_sub(vb4, dornotd);
const vector signed short vb5plusd = vec_add(vb5, dornotd);
/* finally, stores */
const vector unsigned char st4 = vec_packsu(vb4minusd, (vector signed short)zero);
const vector unsigned char st5 = vec_packsu(vb5plusd, (vector signed short)zero);
const vector signed char neg1 = vec_splat_s8(-1);
const vector unsigned char permHH = (const vector unsigned char){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F};
#define STORE(i) \
{ const vector unsigned char perms##i = \
vec_lvsr(i * stride, src2); \
const vector unsigned char vg##i = \
vec_perm(st##i, vbT##i, permHH); \
const vector unsigned char mask##i = \
vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms##i); \
const vector unsigned char vg2##i = \
vec_perm(vg##i, vg##i, perms##i); \
const vector unsigned char svA##i = \
vec_sel(vbA##i, vg2##i, mask##i); \
const vector unsigned char svB##i = \
vec_sel(vg2##i, vbB##i, mask##i); \
vec_st(svA##i, i * stride, src2); \
vec_st(svB##i, i * stride + 16, src2);}
STORE(4)
STORE(5)
}
static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
const vector signed int vsint32_8 = vec_splat_s32(8);
const vector unsigned int vuint32_4 = vec_splat_u32(4);
const vector signed char neg1 = vec_splat_s8(-1);
const vector unsigned char permA1 = (vector unsigned char)
{0x00, 0x01, 0x02, 0x10, 0x11, 0x12, 0x1F, 0x1F,
0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F};
const vector unsigned char permA2 = (vector unsigned char)
{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x10, 0x11,
0x12, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F};
const vector unsigned char permA1inc = (vector unsigned char)
{0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
const vector unsigned char permA2inc = (vector unsigned char)
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
const vector unsigned char magic = (vector unsigned char)
{0x01, 0x02, 0x01, 0x02, 0x04, 0x02, 0x01, 0x02,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
const vector unsigned char extractPerm = (vector unsigned char)
{0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01,
0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01};
const vector unsigned char extractPermInc = (vector unsigned char)
{0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01};
const vector unsigned char identity = vec_lvsl(0,(unsigned char *)0);
const vector unsigned char tenRight = (vector unsigned char)
{0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
const vector unsigned char eightLeft = (vector unsigned char)
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08};
/*
this code makes no assumption on src or stride.
One could remove the recomputation of the perm
vector by assuming (stride % 16) == 0, unfortunately
this is not always true. Quite a lot of load/stores
can be removed by assuming proper alignment of
src & stride :-(
*/
uint8_t *srcCopy = src;
DECLARE_ALIGNED(16, uint8_t, dt)[16] = { deringThreshold };
const vector signed int zero = vec_splat_s32(0);
vector unsigned char v_dt = vec_splat(vec_ld(0, dt), 0);
#define LOAD_LINE(i) \
const vector unsigned char perm##i = \
vec_lvsl(i * stride, srcCopy); \
vector unsigned char sA##i = vec_ld(i * stride, srcCopy); \
vector unsigned char sB##i = vec_ld(i * stride + 16, srcCopy); \
vector unsigned char src##i = vec_perm(sA##i, sB##i, perm##i)
LOAD_LINE(0);
LOAD_LINE(1);
LOAD_LINE(2);
LOAD_LINE(3);
LOAD_LINE(4);
LOAD_LINE(5);
LOAD_LINE(6);
LOAD_LINE(7);
LOAD_LINE(8);
LOAD_LINE(9);
#undef LOAD_LINE
vector unsigned char v_avg;
DECLARE_ALIGNED(16, signed int, S)[8];
DECLARE_ALIGNED(16, int, tQP2)[4] = { c->QP/2 + 1 };
vector signed int vQP2 = vec_ld(0, tQP2);
vQP2 = vec_splat(vQP2, 0);
{
const vector unsigned char trunc_perm = (vector unsigned char)
{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18};
const vector unsigned char trunc_src12 = vec_perm(src1, src2, trunc_perm);
const vector unsigned char trunc_src34 = vec_perm(src3, src4, trunc_perm);
const vector unsigned char trunc_src56 = vec_perm(src5, src6, trunc_perm);
const vector unsigned char trunc_src78 = vec_perm(src7, src8, trunc_perm);
#define EXTRACT(op) do { \
const vector unsigned char s_1 = vec_##op(trunc_src12, trunc_src34); \
const vector unsigned char s_2 = vec_##op(trunc_src56, trunc_src78); \
const vector unsigned char s_6 = vec_##op(s_1, s_2); \
const vector unsigned char s_8h = vec_mergeh(s_6, s_6); \
const vector unsigned char s_8l = vec_mergel(s_6, s_6); \
const vector unsigned char s_9 = vec_##op(s_8h, s_8l); \
const vector unsigned char s_9h = vec_mergeh(s_9, s_9); \
const vector unsigned char s_9l = vec_mergel(s_9, s_9); \
const vector unsigned char s_10 = vec_##op(s_9h, s_9l); \
const vector unsigned char s_10h = vec_mergeh(s_10, s_10); \
const vector unsigned char s_10l = vec_mergel(s_10, s_10); \
const vector unsigned char s_11 = vec_##op(s_10h, s_10l); \
const vector unsigned char s_11h = vec_mergeh(s_11, s_11); \
const vector unsigned char s_11l = vec_mergel(s_11, s_11); \
v_##op = vec_##op(s_11h, s_11l); \
} while (0)
vector unsigned char v_min;
vector unsigned char v_max;
EXTRACT(min);
EXTRACT(max);
#undef EXTRACT
if (vec_all_lt(vec_sub(v_max, v_min), v_dt))
return;
v_avg = vec_avg(v_min, v_max);
}
{
const vector unsigned short mask1 = (vector unsigned short)
{0x0001, 0x0002, 0x0004, 0x0008,
0x0010, 0x0020, 0x0040, 0x0080};
const vector unsigned short mask2 = (vector unsigned short)
{0x0100, 0x0200, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000};
const vector unsigned int vuint32_16 = vec_sl(vec_splat_u32(1), vec_splat_u32(4));
const vector unsigned int vuint32_1 = vec_splat_u32(1);
vector signed int sumA2;
vector signed int sumB2;
vector signed int sum0, sum1, sum2, sum3, sum4;
vector signed int sum5, sum6, sum7, sum8, sum9;
#define COMPARE(i) \
do { \
const vector unsigned char cmp = \
(vector unsigned char)vec_cmpgt(src##i, v_avg); \
const vector unsigned short cmpHi = \
(vector unsigned short)vec_mergeh(cmp, cmp); \
const vector unsigned short cmpLi = \
(vector unsigned short)vec_mergel(cmp, cmp); \
const vector signed short cmpHf = \
(vector signed short)vec_and(cmpHi, mask1); \
const vector signed short cmpLf = \
(vector signed short)vec_and(cmpLi, mask2); \
const vector signed int sump = vec_sum4s(cmpHf, zero); \
const vector signed int sumq = vec_sum4s(cmpLf, sump); \
sum##i = vec_sums(sumq, zero); \
} while (0)
COMPARE(0);
COMPARE(1);
COMPARE(2);
COMPARE(3);
COMPARE(4);
COMPARE(5);
COMPARE(6);
COMPARE(7);
COMPARE(8);
COMPARE(9);
#undef COMPARE
{
const vector signed int sump02 = vec_mergel(sum0, sum2);
const vector signed int sump13 = vec_mergel(sum1, sum3);
const vector signed int sumA = vec_mergel(sump02, sump13);
const vector signed int sump46 = vec_mergel(sum4, sum6);
const vector signed int sump57 = vec_mergel(sum5, sum7);
const vector signed int sumB = vec_mergel(sump46, sump57);
const vector signed int sump8A = vec_mergel(sum8, zero);
const vector signed int sump9B = vec_mergel(sum9, zero);
const vector signed int sumC = vec_mergel(sump8A, sump9B);
const vector signed int tA = vec_sl(vec_nor(zero, sumA), vuint32_16);
const vector signed int tB = vec_sl(vec_nor(zero, sumB), vuint32_16);
const vector signed int tC = vec_sl(vec_nor(zero, sumC), vuint32_16);
const vector signed int t2A = vec_or(sumA, tA);
const vector signed int t2B = vec_or(sumB, tB);
const vector signed int t2C = vec_or(sumC, tC);
const vector signed int t3A = vec_and(vec_sra(t2A, vuint32_1),
vec_sl(t2A, vuint32_1));
const vector signed int t3B = vec_and(vec_sra(t2B, vuint32_1),
vec_sl(t2B, vuint32_1));
const vector signed int t3C = vec_and(vec_sra(t2C, vuint32_1),
vec_sl(t2C, vuint32_1));
const vector signed int yA = vec_and(t2A, t3A);
const vector signed int yB = vec_and(t2B, t3B);
const vector signed int yC = vec_and(t2C, t3C);
const vector unsigned char strangeperm1 = vec_lvsl(4, (unsigned char*)0);
const vector unsigned char strangeperm2 = vec_lvsl(8, (unsigned char*)0);
const vector signed int sumAd4 = vec_perm(yA, yB, strangeperm1);
const vector signed int sumAd8 = vec_perm(yA, yB, strangeperm2);
const vector signed int sumBd4 = vec_perm(yB, yC, strangeperm1);
const vector signed int sumBd8 = vec_perm(yB, yC, strangeperm2);
const vector signed int sumAp = vec_and(yA,
vec_and(sumAd4,sumAd8));
const vector signed int sumBp = vec_and(yB,
vec_and(sumBd4,sumBd8));
sumA2 = vec_or(sumAp,
vec_sra(sumAp,
vuint32_16));
sumB2 = vec_or(sumBp,
vec_sra(sumBp,
vuint32_16));
}
vec_st(sumA2, 0, S);
vec_st(sumB2, 16, S);
}
/* I'm not sure the following is actually faster
than straight, unvectorized C code :-( */
#define F_INIT() \
vector unsigned char tenRightM = tenRight; \
vector unsigned char permA1M = permA1; \
vector unsigned char permA2M = permA2; \
vector unsigned char extractPermM = extractPerm
#define F2(i, j, k, l) \
if (S[i] & (1 << (l+1))) { \
const vector unsigned char a_A = vec_perm(src##i, src##j, permA1M); \
const vector unsigned char a_B = vec_perm(a_A, src##k, permA2M); \
const vector signed int a_sump = \
(vector signed int)vec_msum(a_B, magic, (vector unsigned int)zero);\
vector signed int F = vec_sr(vec_sums(a_sump, vsint32_8), vuint32_4); \
const vector signed int p = \
(vector signed int)vec_perm(src##j, (vector unsigned char)zero, \
extractPermM); \
const vector signed int sum = vec_add(p, vQP2); \
const vector signed int diff = vec_sub(p, vQP2); \
vector signed int newpm; \
vector unsigned char newpm2, mask; \
F = vec_splat(F, 3); \
if (vec_all_lt(sum, F)) \
newpm = sum; \
else if (vec_all_gt(diff, F)) \
newpm = diff; \
else newpm = F; \
newpm2 = vec_splat((vector unsigned char)newpm, 15); \
mask = vec_add(identity, tenRightM); \
src##j = vec_perm(src##j, newpm2, mask); \
} \
permA1M = vec_add(permA1M, permA1inc); \
permA2M = vec_add(permA2M, permA2inc); \
tenRightM = vec_sro(tenRightM, eightLeft); \
extractPermM = vec_add(extractPermM, extractPermInc)
#define ITER(i, j, k) do { \
F_INIT(); \
F2(i, j, k, 0); \
F2(i, j, k, 1); \
F2(i, j, k, 2); \
F2(i, j, k, 3); \
F2(i, j, k, 4); \
F2(i, j, k, 5); \
F2(i, j, k, 6); \
F2(i, j, k, 7); \
} while (0)
ITER(0, 1, 2);
ITER(1, 2, 3);
ITER(2, 3, 4);
ITER(3, 4, 5);
ITER(4, 5, 6);
ITER(5, 6, 7);
ITER(6, 7, 8);
ITER(7, 8, 9);
#define STORE_LINE(i) do { \
const vector unsigned char permST = \
vec_lvsr(i * stride, srcCopy); \
const vector unsigned char maskST = \
vec_perm((vector unsigned char)zero, \
(vector unsigned char)neg1, permST); \
src##i = vec_perm(src##i ,src##i, permST); \
sA##i= vec_sel(sA##i, src##i, maskST); \
sB##i= vec_sel(src##i, sB##i, maskST); \
vec_st(sA##i, i * stride, srcCopy); \
vec_st(sB##i, i * stride + 16, srcCopy); \
} while (0)
STORE_LINE(1);
STORE_LINE(2);
STORE_LINE(3);
STORE_LINE(4);
STORE_LINE(5);
STORE_LINE(6);
STORE_LINE(7);
STORE_LINE(8);
#undef STORE_LINE
#undef ITER
#undef F2
}
#define doHorizLowPass_altivec(a...) doHorizLowPass_C(a)
#define doHorizDefFilter_altivec(a...) doHorizDefFilter_C(a)
#define do_a_deblock_altivec(a...) do_a_deblock_C(a)
static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride,
uint8_t *tempBlurred, uint32_t *tempBlurredPast, int *maxNoise)
{
const vector signed char neg1 = vec_splat_s8(-1);
const vector unsigned char permHH = (const vector unsigned char){0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F};
const vector signed int zero = vec_splat_s32(0);
const vector signed short vsint16_1 = vec_splat_s16(1);
vector signed int v_dp = zero;
vector signed int v_sysdp = zero;
int d, sysd, i;
#define LOAD_LINE(src, i) \
register int j##src##i = i * stride; \
vector unsigned char perm##src##i = vec_lvsl(j##src##i, src); \
const vector unsigned char v_##src##A1##i = vec_ld(j##src##i, src); \
const vector unsigned char v_##src##A2##i = vec_ld(j##src##i + 16, src); \
const vector unsigned char v_##src##A##i = \
vec_perm(v_##src##A1##i, v_##src##A2##i, perm##src##i); \
vector signed short v_##src##Ass##i = \
(vector signed short)vec_mergeh((vector signed char)zero, \
(vector signed char)v_##src##A##i)
LOAD_LINE(src, 0);
LOAD_LINE(src, 1);
LOAD_LINE(src, 2);
LOAD_LINE(src, 3);
LOAD_LINE(src, 4);
LOAD_LINE(src, 5);
LOAD_LINE(src, 6);
LOAD_LINE(src, 7);
LOAD_LINE(tempBlurred, 0);
LOAD_LINE(tempBlurred, 1);
LOAD_LINE(tempBlurred, 2);
LOAD_LINE(tempBlurred, 3);
LOAD_LINE(tempBlurred, 4);
LOAD_LINE(tempBlurred, 5);
LOAD_LINE(tempBlurred, 6);
LOAD_LINE(tempBlurred, 7);
#undef LOAD_LINE
#define ACCUMULATE_DIFFS(i) do { \
vector signed short v_d = vec_sub(v_tempBlurredAss##i, \
v_srcAss##i); \
v_dp = vec_msums(v_d, v_d, v_dp); \
v_sysdp = vec_msums(v_d, vsint16_1, v_sysdp); \
} while (0)
ACCUMULATE_DIFFS(0);
ACCUMULATE_DIFFS(1);
ACCUMULATE_DIFFS(2);
ACCUMULATE_DIFFS(3);
ACCUMULATE_DIFFS(4);
ACCUMULATE_DIFFS(5);
ACCUMULATE_DIFFS(6);
ACCUMULATE_DIFFS(7);
#undef ACCUMULATE_DIFFS
tempBlurredPast[127]= maxNoise[0];
tempBlurredPast[128]= maxNoise[1];
tempBlurredPast[129]= maxNoise[2];
v_dp = vec_sums(v_dp, zero);
v_sysdp = vec_sums(v_sysdp, zero);
v_dp = vec_splat(v_dp, 3);
v_sysdp = vec_splat(v_sysdp, 3);
vec_ste(v_dp, 0, &d);
vec_ste(v_sysdp, 0, &sysd);
i = d;
d = (4*d
+(*(tempBlurredPast-256))
+(*(tempBlurredPast-1))+ (*(tempBlurredPast+1))
+(*(tempBlurredPast+256))
+4)>>3;
*tempBlurredPast=i;
if (d > maxNoise[1]) {
if (d < maxNoise[2]) {
#define OP(i) v_tempBlurredAss##i = vec_avg(v_tempBlurredAss##i, v_srcAss##i);
OP(0);
OP(1);
OP(2);
OP(3);
OP(4);
OP(5);
OP(6);
OP(7);
#undef OP
} else {
#define OP(i) v_tempBlurredAss##i = v_srcAss##i;
OP(0);
OP(1);
OP(2);
OP(3);
OP(4);
OP(5);
OP(6);
OP(7);
#undef OP
}
} else {
if (d < maxNoise[0]) {
const vector signed short vsint16_7 = vec_splat_s16(7);
const vector signed short vsint16_4 = vec_splat_s16(4);
const vector unsigned short vuint16_3 = vec_splat_u16(3);
#define OP(i) do { \
const vector signed short v_temp = \
vec_mladd(v_tempBlurredAss##i, vsint16_7, v_srcAss##i); \
const vector signed short v_temp2 = vec_add(v_temp, vsint16_4); \
v_tempBlurredAss##i = vec_sr(v_temp2, vuint16_3); \
} while (0)
OP(0);
OP(1);
OP(2);
OP(3);
OP(4);
OP(5);
OP(6);
OP(7);
#undef OP
} else {
const vector signed short vsint16_3 = vec_splat_s16(3);
const vector signed short vsint16_2 = vec_splat_s16(2);
#define OP(i) do { \
const vector signed short v_temp = \
vec_mladd(v_tempBlurredAss##i, vsint16_3, v_srcAss##i); \
const vector signed short v_temp2 = vec_add(v_temp, vsint16_2); \
v_tempBlurredAss##i = \
vec_sr(v_temp2, (vector unsigned short)vsint16_2); \
} while (0)
OP(0);
OP(1);
OP(2);
OP(3);
OP(4);
OP(5);
OP(6);
OP(7);
#undef OP
}
}
#define PACK_AND_STORE(src, i) do { \
const vector unsigned char perms = vec_lvsr(i * stride, src); \
const vector unsigned char vf = \
vec_packsu(v_tempBlurredAss##1, (vector signed short)zero); \
const vector unsigned char vg = vec_perm(vf, v_##src##A##i, permHH); \
const vector unsigned char mask = \
vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms); \
const vector unsigned char vg2 = vec_perm(vg, vg, perms); \
const vector unsigned char svA = vec_sel(v_##src##A1##i, vg2, mask); \
const vector unsigned char svB = vec_sel(vg2, v_##src##A2##i, mask); \
vec_st(svA, i * stride, src); \
vec_st(svB, i * stride + 16, src); \
} while (0)
PACK_AND_STORE(src, 0);
PACK_AND_STORE(src, 1);
PACK_AND_STORE(src, 2);
PACK_AND_STORE(src, 3);
PACK_AND_STORE(src, 4);