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
|
;
; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
%include "vpx_ports/x86_abi_support.asm"
;void vp8_idct_dequant_0_2x_sse2
; (
; short *qcoeff - 0
; short *dequant - 1
; unsigned char *dst - 2
; int dst_stride - 3
; )
global sym(vp8_idct_dequant_0_2x_sse2) PRIVATE
sym(vp8_idct_dequant_0_2x_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 4
GET_GOT rbx
; end prolog
mov rdx, arg(1) ; dequant
mov rax, arg(0) ; qcoeff
movd xmm4, [rax]
movd xmm5, [rdx]
pinsrw xmm4, [rax+32], 4
pinsrw xmm5, [rdx], 4
pmullw xmm4, xmm5
; Zero out xmm5, for use unpacking
pxor xmm5, xmm5
; clear coeffs
movd [rax], xmm5
movd [rax+32], xmm5
;pshufb
mov rax, arg(2) ; dst
movsxd rdx, dword ptr arg(3) ; dst_stride
pshuflw xmm4, xmm4, 00000000b
pshufhw xmm4, xmm4, 00000000b
lea rcx, [rdx + rdx*2]
paddw xmm4, [GLOBAL(fours)]
psraw xmm4, 3
movq xmm0, [rax]
movq xmm1, [rax+rdx]
movq xmm2, [rax+2*rdx]
movq xmm3, [rax+rcx]
punpcklbw xmm0, xmm5
punpcklbw xmm1, xmm5
punpcklbw xmm2, xmm5
punpcklbw xmm3, xmm5
; Add to predict buffer
paddw xmm0, xmm4
paddw xmm1, xmm4
paddw xmm2, xmm4
paddw xmm3, xmm4
; pack up before storing
packuswb xmm0, xmm5
packuswb xmm1, xmm5
packuswb xmm2, xmm5
packuswb xmm3, xmm5
; store blocks back out
movq [rax], xmm0
movq [rax + rdx], xmm1
lea rax, [rax + 2*rdx]
movq [rax], xmm2
movq [rax + rdx], xmm3
; begin epilog
RESTORE_GOT
UNSHADOW_ARGS
pop rbp
ret
;void vp8_idct_dequant_full_2x_sse2
; (
; short *qcoeff - 0
; short *dequant - 1
; unsigned char *dst - 2
; int dst_stride - 3
; )
global sym(vp8_idct_dequant_full_2x_sse2) PRIVATE
sym(vp8_idct_dequant_full_2x_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 4
SAVE_XMM 7
GET_GOT rbx
push rsi
push rdi
; end prolog
; special case when 2 blocks have 0 or 1 coeffs
; dc is set as first coeff, so no need to load qcoeff
mov rax, arg(0) ; qcoeff
mov rdx, arg(1) ; dequant
mov rdi, arg(2) ; dst
; Zero out xmm7, for use unpacking
pxor xmm7, xmm7
; note the transpose of xmm1 and xmm2, necessary for shuffle
; to spit out sensicle data
movdqa xmm0, [rax]
movdqa xmm2, [rax+16]
movdqa xmm1, [rax+32]
movdqa xmm3, [rax+48]
; Clear out coeffs
movdqa [rax], xmm7
movdqa [rax+16], xmm7
movdqa [rax+32], xmm7
movdqa [rax+48], xmm7
; dequantize qcoeff buffer
pmullw xmm0, [rdx]
pmullw xmm2, [rdx+16]
pmullw xmm1, [rdx]
pmullw xmm3, [rdx+16]
movsxd rdx, dword ptr arg(3) ; dst_stride
; repack so block 0 row x and block 1 row x are together
movdqa xmm4, xmm0
punpckldq xmm0, xmm1
punpckhdq xmm4, xmm1
pshufd xmm0, xmm0, 11011000b
pshufd xmm1, xmm4, 11011000b
movdqa xmm4, xmm2
punpckldq xmm2, xmm3
punpckhdq xmm4, xmm3
pshufd xmm2, xmm2, 11011000b
pshufd xmm3, xmm4, 11011000b
; first pass
psubw xmm0, xmm2 ; b1 = 0-2
paddw xmm2, xmm2 ;
movdqa xmm5, xmm1
paddw xmm2, xmm0 ; a1 = 0+2
pmulhw xmm5, [GLOBAL(x_s1sqr2)]
lea rcx, [rdx + rdx*2] ;dst_stride * 3
paddw xmm5, xmm1 ; ip1 * sin(pi/8) * sqrt(2)
movdqa xmm7, xmm3
pmulhw xmm7, [GLOBAL(x_c1sqr2less1)]
paddw xmm7, xmm3 ; ip3 * cos(pi/8) * sqrt(2)
psubw xmm7, xmm5 ; c1
movdqa xmm5, xmm1
movdqa xmm4, xmm3
pmulhw xmm5, [GLOBAL(x_c1sqr2less1)]
paddw xmm5, xmm1
pmulhw xmm3, [GLOBAL(x_s1sqr2)]
paddw xmm3, xmm4
paddw xmm3, xmm5 ; d1
movdqa xmm6, xmm2 ; a1
movdqa xmm4, xmm0 ; b1
paddw xmm2, xmm3 ;0
paddw xmm4, xmm7 ;1
psubw xmm0, xmm7 ;2
psubw xmm6, xmm3 ;3
; transpose for the second pass
movdqa xmm7, xmm2 ; 103 102 101 100 003 002 001 000
punpcklwd xmm2, xmm0 ; 007 003 006 002 005 001 004 000
punpckhwd xmm7, xmm0 ; 107 103 106 102 105 101 104 100
movdqa xmm5, xmm4 ; 111 110 109 108 011 010 009 008
punpcklwd xmm4, xmm6 ; 015 011 014 010 013 009 012 008
punpckhwd xmm5, xmm6 ; 115 111 114 110 113 109 112 108
movdqa xmm1, xmm2 ; 007 003 006 002 005 001 004 000
punpckldq xmm2, xmm4 ; 013 009 005 001 012 008 004 000
punpckhdq xmm1, xmm4 ; 015 011 007 003 014 010 006 002
movdqa xmm6, xmm7 ; 107 103 106 102 105 101 104 100
punpckldq xmm7, xmm5 ; 113 109 105 101 112 108 104 100
punpckhdq xmm6, xmm5 ; 115 111 107 103 114 110 106 102
movdqa xmm5, xmm2 ; 013 009 005 001 012 008 004 000
punpckldq xmm2, xmm7 ; 112 108 012 008 104 100 004 000
punpckhdq xmm5, xmm7 ; 113 109 013 009 105 101 005 001
movdqa xmm7, xmm1 ; 015 011 007 003 014 010 006 002
punpckldq xmm1, xmm6 ; 114 110 014 010 106 102 006 002
punpckhdq xmm7, xmm6 ; 115 111 015 011 107 103 007 003
pshufd xmm0, xmm2, 11011000b
pshufd xmm2, xmm1, 11011000b
pshufd xmm1, xmm5, 11011000b
pshufd xmm3, xmm7, 11011000b
; second pass
psubw xmm0, xmm2 ; b1 = 0-2
paddw xmm2, xmm2
movdqa xmm5, xmm1
paddw xmm2, xmm0 ; a1 = 0+2
pmulhw xmm5, [GLOBAL(x_s1sqr2)]
paddw xmm5, xmm1 ; ip1 * sin(pi/8) * sqrt(2)
movdqa xmm7, xmm3
pmulhw xmm7, [GLOBAL(x_c1sqr2less1)]
paddw xmm7, xmm3 ; ip3 * cos(pi/8) * sqrt(2)
psubw xmm7, xmm5 ; c1
movdqa xmm5, xmm1
movdqa xmm4, xmm3
pmulhw xmm5, [GLOBAL(x_c1sqr2less1)]
paddw xmm5, xmm1
pmulhw xmm3, [GLOBAL(x_s1sqr2)]
paddw xmm3, xmm4
paddw xmm3, xmm5 ; d1
paddw xmm0, [GLOBAL(fours)]
paddw xmm2, [GLOBAL(fours)]
movdqa xmm6, xmm2 ; a1
movdqa xmm4, xmm0 ; b1
paddw xmm2, xmm3 ;0
paddw xmm4, xmm7 ;1
psubw xmm0, xmm7 ;2
psubw xmm6, xmm3 ;3
psraw xmm2, 3
psraw xmm0, 3
psraw xmm4, 3
psraw xmm6, 3
; transpose to save
movdqa xmm7, xmm2 ; 103 102 101 100 003 002 001 000
punpcklwd xmm2, xmm0 ; 007 003 006 002 005 001 004 000
punpckhwd xmm7, xmm0 ; 107 103 106 102 105 101 104 100
movdqa xmm5, xmm4 ; 111 110 109 108 011 010 009 008
punpcklwd xmm4, xmm6 ; 015 011 014 010 013 009 012 008
punpckhwd xmm5, xmm6 ; 115 111 114 110 113 109 112 108
movdqa xmm1, xmm2 ; 007 003 006 002 005 001 004 000
punpckldq xmm2, xmm4 ; 013 009 005 001 012 008 004 000
punpckhdq xmm1, xmm4 ; 015 011 007 003 014 010 006 002
movdqa xmm6, xmm7 ; 107 103 106 102 105 101 104 100
punpckldq xmm7, xmm5 ; 113 109 105 101 112 108 104 100
punpckhdq xmm6, xmm5 ; 115 111 107 103 114 110 106 102
movdqa xmm5, xmm2 ; 013 009 005 001 012 008 004 000
punpckldq xmm2, xmm7 ; 112 108 012 008 104 100 004 000
punpckhdq xmm5, xmm7 ; 113 109 013 009 105 101 005 001
movdqa xmm7, xmm1 ; 015 011 007 003 014 010 006 002
punpckldq xmm1, xmm6 ; 114 110 014 010 106 102 006 002
punpckhdq xmm7, xmm6 ; 115 111 015 011 107 103 007 003
pshufd xmm0, xmm2, 11011000b
pshufd xmm2, xmm1, 11011000b
pshufd xmm1, xmm5, 11011000b
pshufd xmm3, xmm7, 11011000b
pxor xmm7, xmm7
; Load up predict blocks
movq xmm4, [rdi]
movq xmm5, [rdi+rdx]
punpcklbw xmm4, xmm7
punpcklbw xmm5, xmm7
paddw xmm0, xmm4
paddw xmm1, xmm5
movq xmm4, [rdi+2*rdx]
movq xmm5, [rdi+rcx]
punpcklbw xmm4, xmm7
punpcklbw xmm5, xmm7
paddw xmm2, xmm4
paddw xmm3, xmm5
.finish:
; pack up before storing
packuswb xmm0, xmm7
packuswb xmm1, xmm7
packuswb xmm2, xmm7
packuswb xmm3, xmm7
; store blocks back out
movq [rdi], xmm0
movq [rdi + rdx], xmm1
movq [rdi + rdx*2], xmm2
movq [rdi + rcx], xmm3
; begin epilog
pop rdi
pop rsi
RESTORE_GOT
RESTORE_XMM
UNSHADOW_ARGS
pop rbp
ret
;void vp8_idct_dequant_dc_0_2x_sse2
; (
; short *qcoeff - 0
; short *dequant - 1
; unsigned char *dst - 2
; int dst_stride - 3
; short *dc - 4
; )
global sym(vp8_idct_dequant_dc_0_2x_sse2) PRIVATE
sym(vp8_idct_dequant_dc_0_2x_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 5
GET_GOT rbx
push rdi
; end prolog
; special case when 2 blocks have 0 or 1 coeffs
; dc is set as first coeff, so no need to load qcoeff
mov rax, arg(0) ; qcoeff
mov rdi, arg(2) ; dst
mov rdx, arg(4) ; dc
; Zero out xmm5, for use unpacking
pxor xmm5, xmm5
; load up 2 dc words here == 2*16 = doubleword
movd xmm4, [rdx]
movsxd rdx, dword ptr arg(3) ; dst_stride
lea rcx, [rdx + rdx*2]
; Load up predict blocks
movq xmm0, [rdi]
movq xmm1, [rdi+rdx*1]
movq xmm2, [rdi+rdx*2]
movq xmm3, [rdi+rcx]
; Duplicate and expand dc across
punpcklwd xmm4, xmm4
punpckldq xmm4, xmm4
; Rounding to dequant and downshift
paddw xmm4, [GLOBAL(fours)]
psraw xmm4, 3
; Predict buffer needs to be expanded from bytes to words
punpcklbw xmm0, xmm5
punpcklbw xmm1, xmm5
punpcklbw xmm2, xmm5
punpcklbw xmm3, xmm5
; Add to predict buffer
paddw xmm0, xmm4
paddw xmm1, xmm4
paddw xmm2, xmm4
paddw xmm3, xmm4
; pack up before storing
packuswb xmm0, xmm5
packuswb xmm1, xmm5
packuswb xmm2, xmm5
packuswb xmm3, xmm5
; store blocks back out
movq [rdi], xmm0
movq [rdi + rdx], xmm1
movq [rdi + rdx*2], xmm2
movq [rdi + rcx], xmm3
; begin epilog
pop rdi
RESTORE_GOT
UNSHADOW_ARGS
pop rbp
ret
;void vp8_idct_dequant_dc_full_2x_sse2
; (
; short *qcoeff - 0
; short *dequant - 1
; unsigned char *dst - 2
; int dst_stride - 3
; short *dc - 4
; )
global sym(vp8_idct_dequant_dc_full_2x_sse2) PRIVATE
sym(vp8_idct_dequant_dc_full_2x_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 5
SAVE_XMM 7
GET_GOT rbx
push rdi
; end prolog
; special case when 2 blocks have 0 or 1 coeffs
; dc is set as first coeff, so no need to load qcoeff
mov rax, arg(0) ; qcoeff
mov rdx, arg(1) ; dequant
mov rdi, arg(2) ; dst
; Zero out xmm7, for use unpacking
pxor xmm7, xmm7
; note the transpose of xmm1 and xmm2, necessary for shuffle
; to spit out sensicle data
movdqa xmm0, [rax]
movdqa xmm2, [rax+16]
movdqa xmm1, [rax+32]
movdqa xmm3, [rax+48]
; Clear out coeffs
movdqa [rax], xmm7
movdqa [rax+16], xmm7
movdqa [rax+32], xmm7
movdqa [rax+48], xmm7
; dequantize qcoeff buffer
pmullw xmm0, [rdx]
pmullw xmm2, [rdx+16]
pmullw xmm1, [rdx]
pmullw xmm3, [rdx+16]
; DC component
mov rdx, arg(4)
; repack so block 0 row x and block 1 row x are together
movdqa xmm4, xmm0
punpckldq xmm0, xmm1
punpckhdq xmm4, xmm1
pshufd xmm0, xmm0, 11011000b
pshufd xmm1, xmm4, 11011000b
movdqa xmm4, xmm2
punpckldq xmm2, xmm3
punpckhdq xmm4, xmm3
pshufd xmm2, xmm2, 11011000b
pshufd xmm3, xmm4, 11011000b
; insert DC component
pinsrw xmm0, [rdx], 0
pinsrw xmm0, [rdx+2], 4
; first pass
psubw xmm0, xmm2 ; b1 = 0-2
paddw xmm2, xmm2 ;
movdqa xmm5, xmm1
paddw xmm2, xmm0 ; a1 = 0+2
pmulhw xmm5, [GLOBAL(x_s1sqr2)]
paddw xmm5, xmm1 ; ip1 * sin(pi/8) * sqrt(2)
movdqa xmm7, xmm3
pmulhw xmm7, [GLOBAL(x_c1sqr2less1)]
paddw xmm7, xmm3 ; ip3 * cos(pi/8) * sqrt(2)
psubw xmm7, xmm5 ; c1
movdqa xmm5, xmm1
movdqa xmm4, xmm3
pmulhw xmm5, [GLOBAL(x_c1sqr2less1)]
paddw xmm5, xmm1
pmulhw xmm3, [GLOBAL(x_s1sqr2)]
paddw xmm3, xmm4
paddw xmm3, xmm5 ; d1
movdqa xmm6, xmm2 ; a1
movdqa xmm4, xmm0 ; b1
paddw xmm2, xmm3 ;0
paddw xmm4, xmm7 ;1
psubw xmm0, xmm7 ;2
psubw xmm6, xmm3 ;3
; transpose for the second pass
movdqa xmm7, xmm2 ; 103 102 101 100 003 002 001 000
punpcklwd xmm2, xmm0 ; 007 003 006 002 005 001 004 000
punpckhwd xmm7, xmm0 ; 107 103 106 102 105 101 104 100
movdqa xmm5, xmm4 ; 111 110 109 108 011 010 009 008
punpcklwd xmm4, xmm6 ; 015 011 014 010 013 009 012 008
punpckhwd xmm5, xmm6 ; 115 111 114 110 113 109 112 108
movdqa xmm1, xmm2 ; 007 003 006 002 005 001 004 000
punpckldq xmm2, xmm4 ; 013 009 005 001 012 008 004 000
punpckhdq xmm1, xmm4 ; 015 011 007 003 014 010 006 002
movdqa xmm6, xmm7 ; 107 103 106 102 105 101 104 100
punpckldq xmm7, xmm5 ; 113 109 105 101 112 108 104 100
punpckhdq xmm6, xmm5 ; 115 111 107 103 114 110 106 102
movdqa xmm5, xmm2 ; 013 009 005 001 012 008 004 000
punpckldq xmm2, xmm7 ; 112 108 012 008 104 100 004 000
punpckhdq xmm5, xmm7 ; 113 109 013 009 105 101 005 001
movdqa xmm7, xmm1 ; 015 011 007 003 014 010 006 002
punpckldq xmm1, xmm6 ; 114 110 014 010 106 102 006 002
punpckhdq xmm7, xmm6 ; 115 111 015 011 107 103 007 003
pshufd xmm0, xmm2, 11011000b
pshufd xmm2, xmm1, 11011000b
pshufd xmm1, xmm5, 11011000b
pshufd xmm3, xmm7, 11011000b
; second pass
psubw xmm0, xmm2 ; b1 = 0-2
paddw xmm2, xmm2
movdqa xmm5, xmm1
paddw xmm2, xmm0 ; a1 = 0+2
pmulhw xmm5, [GLOBAL(x_s1sqr2)]
paddw xmm5, xmm1 ; ip1 * sin(pi/8) * sqrt(2)
movdqa xmm7, xmm3
pmulhw xmm7, [GLOBAL(x_c1sqr2less1)]
paddw xmm7, xmm3 ; ip3 * cos(pi/8) * sqrt(2)
psubw xmm7, xmm5 ; c1
movdqa xmm5, xmm1
movdqa xmm4, xmm3
pmulhw xmm5, [GLOBAL(x_c1sqr2less1)]
paddw xmm5, xmm1
pmulhw xmm3, [GLOBAL(x_s1sqr2)]
paddw xmm3, xmm4
paddw xmm3, xmm5 ; d1
paddw xmm0, [GLOBAL(fours)]
paddw xmm2, [GLOBAL(fours)]
movdqa xmm6, xmm2 ; a1
movdqa xmm4, xmm0 ; b1
paddw xmm2, xmm3 ;0
paddw xmm4, xmm7 ;1
psubw xmm0, xmm7 ;2
psubw xmm6, xmm3 ;3
psraw xmm2, 3
psraw xmm0, 3
psraw xmm4, 3
psraw xmm6, 3
; transpose to save
movdqa xmm7, xmm2 ; 103 102 101 100 003 002 001 000
punpcklwd xmm2, xmm0 ; 007 003 006 002 005 001 004 000
punpckhwd xmm7, xmm0 ; 107 103 106 102 105 101 104 100
movdqa xmm5, xmm4 ; 111 110 109 108 011 010 009 008
punpcklwd xmm4, xmm6 ; 015 011 014 010 013 009 012 008
punpckhwd xmm5, xmm6 ; 115 111 114 110 113 109 112 108
movdqa xmm1, xmm2 ; 007 003 006 002 005 001 004 000
punpckldq xmm2, xmm4 ; 013 009 005 001 012 008 004 000
punpckhdq xmm1, xmm4 ; 015 011 007 003 014 010 006 002
movdqa xmm6, xmm7 ; 107 103 106 102 105 101 104 100
punpckldq xmm7, xmm5 ; 113 109 105 101 112 108 104 100
punpckhdq xmm6, xmm5 ; 115 111 107 103 114 110 106 102
movdqa xmm5, xmm2 ; 013 009 005 001 012 008 004 000
punpckldq xmm2, xmm7 ; 112 108 012 008 104 100 004 000
punpckhdq xmm5, xmm7 ; 113 109 013 009 105 101 005 001
movdqa xmm7, xmm1 ; 015 011 007 003 014 010 006 002
punpckldq xmm1, xmm6 ; 114 110 014 010 106 102 006 002
punpckhdq xmm7, xmm6 ; 115 111 015 011 107 103 007 003
pshufd xmm0, xmm2, 11011000b
pshufd xmm2, xmm1, 11011000b
pshufd xmm1, xmm5, 11011000b
pshufd xmm3, xmm7, 11011000b
pxor xmm7, xmm7
; Load up predict blocks
movsxd rdx, dword ptr arg(3) ; dst_stride
movq xmm4, [rdi]
movq xmm5, [rdi+rdx]
lea rcx, [rdx + rdx*2]
punpcklbw xmm4, xmm7
punpcklbw xmm5, xmm7
paddw xmm0, xmm4
paddw xmm1, xmm5
movq xmm4, [rdi+rdx*2]
movq xmm5, [rdi+rcx]
punpcklbw xmm4, xmm7
punpcklbw xmm5, xmm7
paddw xmm2, xmm4
paddw xmm3, xmm5
.finish:
; pack up before storing
packuswb xmm0, xmm7
packuswb xmm1, xmm7
packuswb xmm2, xmm7
packuswb xmm3, xmm7
; Load destination stride before writing out,
; doesn't need to persist
movsxd rdx, dword ptr arg(3) ; dst_stride
; store blocks back out
movq [rdi], xmm0
movq [rdi + rdx], xmm1
lea rdi, [rdi + 2*rdx]
movq [rdi], xmm2
movq [rdi + rdx], xmm3
; begin epilog
pop rdi
RESTORE_GOT
RESTORE_XMM
UNSHADOW_ARGS
pop rbp
ret
SECTION_RODATA
align 16
fours:
times 8 dw 0x0004
align 16
x_s1sqr2:
times 8 dw 0x8A8C
align 16
x_c1sqr2less1:
times 8 dw 0x4E7B
|