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
|
;
; jdsample.asm - upsampling (64-bit AVX2)
;
; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
; Copyright (C) 2009, 2016, D. R. Commander.
; Copyright (C) 2015, Intel Corporation.
; Copyright (C) 2018, Matthias Räncker.
;
; Based on the x86 SIMD extension for IJG JPEG library
; Copyright (C) 1999-2006, MIYASAKA Masaru.
; For conditions of distribution and use, see copyright notice in jsimdext.inc
;
; This file should be assembled with NASM (Netwide Assembler),
; can *not* be assembled with Microsoft's MASM or any compatible
; assembler (including Borland's Turbo Assembler).
; NASM is available from http://nasm.sourceforge.net/ or
; http://sourceforge.net/project/showfiles.php?group_id=6208
%include "jsimdext.inc"
; --------------------------------------------------------------------------
SECTION SEG_CONST
alignz 32
GLOBAL_DATA(jconst_fancy_upsample_avx2)
EXTN(jconst_fancy_upsample_avx2):
PW_ONE times 16 dw 1
PW_TWO times 16 dw 2
PW_THREE times 16 dw 3
PW_SEVEN times 16 dw 7
PW_EIGHT times 16 dw 8
alignz 32
; --------------------------------------------------------------------------
SECTION SEG_TEXT
BITS 64
;
; Fancy processing for the common case of 2:1 horizontal and 1:1 vertical.
;
; The upsampling algorithm is linear interpolation between pixel centers,
; also known as a "triangle filter". This is a good compromise between
; speed and visual quality. The centers of the output pixels are 1/4 and 3/4
; of the way between input pixel centers.
;
; GLOBAL(void)
; jsimd_h2v1_fancy_upsample_avx2(int max_v_samp_factor,
; JDIMENSION downsampled_width,
; JSAMPARRAY input_data,
; JSAMPARRAY *output_data_ptr);
;
; r10 = int max_v_samp_factor
; r11d = JDIMENSION downsampled_width
; r12 = JSAMPARRAY input_data
; r13 = JSAMPARRAY *output_data_ptr
align 32
GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_avx2)
EXTN(jsimd_h2v1_fancy_upsample_avx2):
push rbp
mov rax, rsp
mov rbp, rsp
push_xmm 3
collect_args 4
mov eax, r11d ; colctr
test rax, rax
jz near .return
mov rcx, r10 ; rowctr
test rcx, rcx
jz near .return
mov rsi, r12 ; input_data
mov rdi, r13
mov rdip, JSAMPARRAY [rdi] ; output_data
vpxor ymm0, ymm0, ymm0 ; ymm0=(all 0's)
vpcmpeqb xmm9, xmm9, xmm9
vpsrldq xmm10, xmm9, (SIZEOF_XMMWORD-1) ; (ff -- -- -- ... -- --) LSB is ff
vpslldq xmm9, xmm9, (SIZEOF_XMMWORD-1)
vperm2i128 ymm9, ymm9, ymm9, 1 ; (---- ---- ... ---- ---- ff) MSB is ff
.rowloop:
push rax ; colctr
push rdi
push rsi
mov rsip, JSAMPROW [rsi] ; inptr
mov rdip, JSAMPROW [rdi] ; outptr
test rax, SIZEOF_YMMWORD-1
jz short .skip
mov dl, JSAMPLE [rsi+(rax-1)*SIZEOF_JSAMPLE]
mov JSAMPLE [rsi+rax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
.skip:
vpand ymm7, ymm10, YMMWORD [rsi+0*SIZEOF_YMMWORD]
add rax, byte SIZEOF_YMMWORD-1
and rax, byte -SIZEOF_YMMWORD
cmp rax, byte SIZEOF_YMMWORD
ja short .columnloop
.columnloop_last:
vpand ymm6, ymm9, YMMWORD [rsi+0*SIZEOF_YMMWORD]
jmp short .upsample
.columnloop:
vmovdqu ymm6, YMMWORD [rsi+1*SIZEOF_YMMWORD]
vperm2i128 ymm6, ymm0, ymm6, 0x20
vpslldq ymm6, ymm6, 15
.upsample:
vmovdqu ymm1, YMMWORD [rsi+0*SIZEOF_YMMWORD] ; ymm1=( 0 1 2 ... 29 30 31)
vperm2i128 ymm2, ymm0, ymm1, 0x20
vpalignr ymm2, ymm1, ymm2, 15 ; ymm2=(-- 0 1 ... 28 29 30)
vperm2i128 ymm4, ymm0, ymm1, 0x03
vpalignr ymm3, ymm4, ymm1, 1 ; ymm3=( 1 2 3 ... 30 31 --)
vpor ymm2, ymm2, ymm7 ; ymm2=(-1 0 1 ... 28 29 30)
vpor ymm3, ymm3, ymm6 ; ymm3=( 1 2 3 ... 30 31 32)
vpsrldq ymm7, ymm4, (SIZEOF_XMMWORD-1) ; ymm7=(31 -- -- ... -- -- --)
vpunpckhbw ymm4, ymm1, ymm0 ; ymm4=( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm5, ymm1, ymm0 ; ymm5=( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm1, ymm5, ymm4, 0x20 ; ymm1=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm4, ymm5, ymm4, 0x31 ; ymm4=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm5, ymm2, ymm0 ; ymm5=( 7 8 9 10 11 12 13 14 23 24 25 26 27 28 29 30)
vpunpcklbw ymm6, ymm2, ymm0 ; ymm6=(-1 0 1 2 3 4 5 6 15 16 17 18 19 20 21 22)
vperm2i128 ymm2, ymm6, ymm5, 0x20 ; ymm2=(-1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vperm2i128 ymm5, ymm6, ymm5, 0x31 ; ymm5=(15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vpunpckhbw ymm6, ymm3, ymm0 ; ymm6=( 1 2 3 4 5 6 7 8 17 18 19 20 21 22 23 24)
vpunpcklbw ymm8, ymm3, ymm0 ; ymm8=( 9 10 11 12 13 14 15 16 25 26 27 28 29 30 31 32)
vperm2i128 ymm3, ymm8, ymm6, 0x20 ; ymm3=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16)
vperm2i128 ymm6, ymm8, ymm6, 0x31 ; ymm6=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32)
vpmullw ymm1, ymm1, [rel PW_THREE]
vpmullw ymm4, ymm4, [rel PW_THREE]
vpaddw ymm2, ymm2, [rel PW_ONE]
vpaddw ymm5, ymm5, [rel PW_ONE]
vpaddw ymm3, ymm3, [rel PW_TWO]
vpaddw ymm6, ymm6, [rel PW_TWO]
vpaddw ymm2, ymm2, ymm1
vpaddw ymm5, ymm5, ymm4
vpsrlw ymm2, ymm2, 2 ; ymm2=OutLE=( 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30)
vpsrlw ymm5, ymm5, 2 ; ymm5=OutHE=(32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62)
vpaddw ymm3, ymm3, ymm1
vpaddw ymm6, ymm6, ymm4
vpsrlw ymm3, ymm3, 2 ; ymm3=OutLO=( 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31)
vpsrlw ymm6, ymm6, 2 ; ymm6=OutHO=(33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63)
vpsllw ymm3, ymm3, BYTE_BIT
vpsllw ymm6, ymm6, BYTE_BIT
vpor ymm2, ymm2, ymm3 ; ymm2=OutL=( 0 1 2 ... 29 30 31)
vpor ymm5, ymm5, ymm6 ; ymm5=OutH=(32 33 34 ... 61 62 63)
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymm2
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymm5
sub rax, byte SIZEOF_YMMWORD
add rsi, byte 1*SIZEOF_YMMWORD ; inptr
add rdi, byte 2*SIZEOF_YMMWORD ; outptr
cmp rax, byte SIZEOF_YMMWORD
ja near .columnloop
test eax, eax
jnz near .columnloop_last
pop rsi
pop rdi
pop rax
add rsi, byte SIZEOF_JSAMPROW ; input_data
add rdi, byte SIZEOF_JSAMPROW ; output_data
dec rcx ; rowctr
jg near .rowloop
.return:
vzeroupper
uncollect_args 4
pop_xmm 3
pop rbp
ret
; --------------------------------------------------------------------------
;
; Fancy processing for the common case of 2:1 horizontal and 2:1 vertical.
; Again a triangle filter; see comments for h2v1 case, above.
;
; GLOBAL(void)
; jsimd_h2v2_fancy_upsample_avx2(int max_v_samp_factor,
; JDIMENSION downsampled_width,
; JSAMPARRAY input_data,
; JSAMPARRAY *output_data_ptr);
;
; r10 = int max_v_samp_factor
; r11d = JDIMENSION downsampled_width
; r12 = JSAMPARRAY input_data
; r13 = JSAMPARRAY *output_data_ptr
%define wk(i) rbp - (WK_NUM - (i)) * SIZEOF_YMMWORD ; ymmword wk[WK_NUM]
%define WK_NUM 4
align 32
GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_avx2)
EXTN(jsimd_h2v2_fancy_upsample_avx2):
push rbp
mov rax, rsp ; rax = original rbp
sub rsp, byte 4
and rsp, byte (-SIZEOF_YMMWORD) ; align to 256 bits
mov [rsp], rax
mov rbp, rsp ; rbp = aligned rbp
lea rsp, [wk(0)]
push_xmm 3
collect_args 4
push rbx
mov eax, r11d ; colctr
test rax, rax
jz near .return
mov rcx, r10 ; rowctr
test rcx, rcx
jz near .return
mov rsi, r12 ; input_data
mov rdi, r13
mov rdip, JSAMPARRAY [rdi] ; output_data
.rowloop:
push rax ; colctr
push rcx
push rdi
push rsi
mov rcxp, JSAMPROW [rsi-1*SIZEOF_JSAMPROW] ; inptr1(above)
mov rbxp, JSAMPROW [rsi+0*SIZEOF_JSAMPROW] ; inptr0
mov rsip, JSAMPROW [rsi+1*SIZEOF_JSAMPROW] ; inptr1(below)
mov rdxp, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] ; outptr0
mov rdip, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] ; outptr1
vpxor ymm8, ymm8, ymm8 ; ymm8=(all 0's)
vpcmpeqb xmm9, xmm9, xmm9
vpsrldq xmm10, xmm9, (SIZEOF_XMMWORD-2) ; (ffff ---- ---- ... ---- ----) LSB is ffff
vpslldq xmm9, xmm9, (SIZEOF_XMMWORD-2)
vperm2i128 ymm9, ymm9, ymm9, 1 ; (---- ---- ... ---- ---- ffff) MSB is ffff
test rax, SIZEOF_YMMWORD-1
jz short .skip
push rdx
mov dl, JSAMPLE [rcx+(rax-1)*SIZEOF_JSAMPLE]
mov JSAMPLE [rcx+rax*SIZEOF_JSAMPLE], dl
mov dl, JSAMPLE [rbx+(rax-1)*SIZEOF_JSAMPLE]
mov JSAMPLE [rbx+rax*SIZEOF_JSAMPLE], dl
mov dl, JSAMPLE [rsi+(rax-1)*SIZEOF_JSAMPLE]
mov JSAMPLE [rsi+rax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
pop rdx
.skip:
; -- process the first column block
vmovdqu ymm0, YMMWORD [rbx+0*SIZEOF_YMMWORD] ; ymm0=row[ 0][0]
vmovdqu ymm1, YMMWORD [rcx+0*SIZEOF_YMMWORD] ; ymm1=row[-1][0]
vmovdqu ymm2, YMMWORD [rsi+0*SIZEOF_YMMWORD] ; ymm2=row[+1][0]
vpunpckhbw ymm4, ymm0, ymm8 ; ymm4=row[ 0]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm5, ymm0, ymm8 ; ymm5=row[ 0]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm0, ymm5, ymm4, 0x20 ; ymm0=row[ 0]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm4, ymm5, ymm4, 0x31 ; ymm4=row[ 0](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm5, ymm1, ymm8 ; ymm5=row[-1]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm6, ymm1, ymm8 ; ymm6=row[-1]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm1, ymm6, ymm5, 0x20 ; ymm1=row[-1]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm5, ymm6, ymm5, 0x31 ; ymm5=row[-1](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm6, ymm2, ymm8 ; ymm6=row[+1]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm3, ymm2, ymm8 ; ymm3=row[+1]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm2, ymm3, ymm6, 0x20 ; ymm2=row[+1]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm6, ymm3, ymm6, 0x31 ; ymm6=row[+1](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpmullw ymm0, ymm0, [rel PW_THREE]
vpmullw ymm4, ymm4, [rel PW_THREE]
vpaddw ymm1, ymm1, ymm0 ; ymm1=Int0L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vpaddw ymm5, ymm5, ymm4 ; ymm5=Int0H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpaddw ymm2, ymm2, ymm0 ; ymm2=Int1L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vpaddw ymm6, ymm6, ymm4 ; ymm6=Int1H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vmovdqu YMMWORD [rdx+0*SIZEOF_YMMWORD], ymm1 ; temporarily save
vmovdqu YMMWORD [rdx+1*SIZEOF_YMMWORD], ymm5 ; the intermediate data
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymm2
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymm6
vpand ymm1, ymm1, ymm10 ; ymm1=( 0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vpand ymm2, ymm2, ymm10 ; ymm2=( 0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vmovdqa YMMWORD [wk(0)], ymm1
vmovdqa YMMWORD [wk(1)], ymm2
add rax, byte SIZEOF_YMMWORD-1
and rax, byte -SIZEOF_YMMWORD
cmp rax, byte SIZEOF_YMMWORD
ja short .columnloop
.columnloop_last:
; -- process the last column block
vpand ymm1, ymm9, YMMWORD [rdx+1*SIZEOF_YMMWORD]
vpand ymm2, ymm9, YMMWORD [rdi+1*SIZEOF_YMMWORD]
vmovdqa YMMWORD [wk(2)], ymm1 ; ymm1=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 31)
vmovdqa YMMWORD [wk(3)], ymm2 ; ymm2=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 31)
jmp near .upsample
.columnloop:
; -- process the next column block
vmovdqu ymm0, YMMWORD [rbx+1*SIZEOF_YMMWORD] ; ymm0=row[ 0][1]
vmovdqu ymm1, YMMWORD [rcx+1*SIZEOF_YMMWORD] ; ymm1=row[-1][1]
vmovdqu ymm2, YMMWORD [rsi+1*SIZEOF_YMMWORD] ; ymm2=row[+1][1]
vpunpckhbw ymm4, ymm0, ymm8 ; ymm4=row[ 0]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm5, ymm0, ymm8 ; ymm5=row[ 0]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm0, ymm5, ymm4, 0x20 ; ymm0=row[ 0]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm4, ymm5, ymm4, 0x31 ; ymm4=row[ 0](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm5, ymm1, ymm8 ; ymm5=row[-1]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm6, ymm1, ymm8 ; ymm6=row[-1]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm1, ymm6, ymm5, 0x20 ; ymm1=row[-1]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm5, ymm6, ymm5, 0x31 ; ymm5=row[-1](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm6, ymm2, ymm8 ; ymm6=row[+1]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm7, ymm2, ymm8 ; ymm7=row[+1]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm2, ymm7, ymm6, 0x20 ; ymm2=row[+1]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm6, ymm7, ymm6, 0x31 ; ymm6=row[+1](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpmullw ymm0, ymm0, [rel PW_THREE]
vpmullw ymm4, ymm4, [rel PW_THREE]
vpaddw ymm1, ymm1, ymm0 ; ymm1=Int0L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vpaddw ymm5, ymm5, ymm4 ; ymm5=Int0H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpaddw ymm2, ymm2, ymm0 ; ymm2=Int1L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vpaddw ymm6, ymm6, ymm4 ; ymm6=Int1H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vmovdqu YMMWORD [rdx+2*SIZEOF_YMMWORD], ymm1 ; temporarily save
vmovdqu YMMWORD [rdx+3*SIZEOF_YMMWORD], ymm5 ; the intermediate data
vmovdqu YMMWORD [rdi+2*SIZEOF_YMMWORD], ymm2
vmovdqu YMMWORD [rdi+3*SIZEOF_YMMWORD], ymm6
vperm2i128 ymm1, ymm8, ymm1, 0x20
vpslldq ymm1, ymm1, 14 ; ymm1=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0)
vperm2i128 ymm2, ymm8, ymm2, 0x20
vpslldq ymm2, ymm2, 14 ; ymm2=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0)
vmovdqa YMMWORD [wk(2)], ymm1
vmovdqa YMMWORD [wk(3)], ymm2
.upsample:
; -- process the upper row
vmovdqu ymm7, YMMWORD [rdx+0*SIZEOF_YMMWORD] ; ymm7=Int0L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vmovdqu ymm3, YMMWORD [rdx+1*SIZEOF_YMMWORD] ; ymm3=Int0H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vperm2i128 ymm0, ymm8, ymm7, 0x03
vpalignr ymm0, ymm0, ymm7, 2 ; ymm0=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 --)
vperm2i128 ymm4, ymm8, ymm3, 0x20
vpslldq ymm4, ymm4, 14 ; ymm4=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16)
vperm2i128 ymm5, ymm8, ymm7, 0x03
vpsrldq ymm5, ymm5, 14 ; ymm5=(15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vperm2i128 ymm6, ymm8, ymm3, 0x20
vpalignr ymm6, ymm3, ymm6, 14 ; ymm6=(-- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vpor ymm0, ymm0, ymm4 ; ymm0=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16)
vpor ymm5, ymm5, ymm6 ; ymm5=(15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vperm2i128 ymm2, ymm8, ymm3, 0x03
vpalignr ymm2, ymm2, ymm3, 2 ; ymm2=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --)
vperm2i128 ymm4, ymm8, ymm3, 0x03
vpsrldq ymm4, ymm4, 14 ; ymm4=(31 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vperm2i128 ymm1, ymm8, ymm7, 0x20
vpalignr ymm1, ymm7, ymm1, 14 ; ymm1=(-- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vpor ymm1, ymm1, YMMWORD [wk(0)] ; ymm1=(-1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vpor ymm2, ymm2, YMMWORD [wk(2)] ; ymm2=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32)
vmovdqa YMMWORD [wk(0)], ymm4
vpmullw ymm7, ymm7, [rel PW_THREE]
vpmullw ymm3, ymm3, [rel PW_THREE]
vpaddw ymm1, ymm1, [rel PW_EIGHT]
vpaddw ymm5, ymm5, [rel PW_EIGHT]
vpaddw ymm0, ymm0, [rel PW_SEVEN]
vpaddw ymm2, [rel PW_SEVEN]
vpaddw ymm1, ymm1, ymm7
vpaddw ymm5, ymm5, ymm3
vpsrlw ymm1, ymm1, 4 ; ymm1=Out0LE=( 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30)
vpsrlw ymm5, ymm5, 4 ; ymm5=Out0HE=(32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62)
vpaddw ymm0, ymm0, ymm7
vpaddw ymm2, ymm2, ymm3
vpsrlw ymm0, ymm0, 4 ; ymm0=Out0LO=( 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31)
vpsrlw ymm2, ymm2, 4 ; ymm2=Out0HO=(33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63)
vpsllw ymm0, ymm0, BYTE_BIT
vpsllw ymm2, ymm2, BYTE_BIT
vpor ymm1, ymm1, ymm0 ; ymm1=Out0L=( 0 1 2 ... 29 30 31)
vpor ymm5, ymm5, ymm2 ; ymm5=Out0H=(32 33 34 ... 61 62 63)
vmovdqu YMMWORD [rdx+0*SIZEOF_YMMWORD], ymm1
vmovdqu YMMWORD [rdx+1*SIZEOF_YMMWORD], ymm5
; -- process the lower row
vmovdqu ymm6, YMMWORD [rdi+0*SIZEOF_YMMWORD] ; ymm6=Int1L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vmovdqu ymm4, YMMWORD [rdi+1*SIZEOF_YMMWORD] ; ymm4=Int1H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vperm2i128 ymm7, ymm8, ymm6, 0x03
vpalignr ymm7, ymm7, ymm6, 2 ; ymm7=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 --)
vperm2i128 ymm3, ymm8, ymm4, 0x20
vpslldq ymm3, ymm3, 14 ; ymm3=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16)
vperm2i128 ymm0, ymm8, ymm6, 0x03
vpsrldq ymm0, ymm0, 14 ; ymm0=(15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vperm2i128 ymm2, ymm8, ymm4, 0x20
vpalignr ymm2, ymm4, ymm2, 14 ; ymm2=(-- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vpor ymm7, ymm7, ymm3 ; ymm7=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16)
vpor ymm0, ymm0, ymm2 ; ymm0=(15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vperm2i128 ymm5, ymm8, ymm4, 0x03
vpalignr ymm5, ymm5, ymm4, 2 ; ymm5=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --)
vperm2i128 ymm3, ymm8, ymm4, 0x03
vpsrldq ymm3, ymm3, 14 ; ymm3=(31 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vperm2i128 ymm1, ymm8, ymm6, 0x20
vpalignr ymm1, ymm6, ymm1, 14 ; ymm1=(-- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vpor ymm1, ymm1, YMMWORD [wk(1)] ; ymm1=(-1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vpor ymm5, ymm5, YMMWORD [wk(3)] ; ymm5=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32)
vmovdqa YMMWORD [wk(1)], ymm3
vpmullw ymm6, ymm6, [rel PW_THREE]
vpmullw ymm4, ymm4, [rel PW_THREE]
vpaddw ymm1, ymm1, [rel PW_EIGHT]
vpaddw ymm0, ymm0, [rel PW_EIGHT]
vpaddw ymm7, ymm7, [rel PW_SEVEN]
vpaddw ymm5, ymm5, [rel PW_SEVEN]
vpaddw ymm1, ymm1, ymm6
vpaddw ymm0, ymm0, ymm4
vpsrlw ymm1, ymm1, 4 ; ymm1=Out1LE=( 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30)
vpsrlw ymm0, ymm0, 4 ; ymm0=Out1HE=(32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62)
vpaddw ymm7, ymm7, ymm6
vpaddw ymm5, ymm5, ymm4
vpsrlw ymm7, ymm7, 4 ; ymm7=Out1LO=( 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31)
vpsrlw ymm5, ymm5, 4 ; ymm5=Out1HO=(33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63)
vpsllw ymm7, ymm7, BYTE_BIT
vpsllw ymm5, ymm5, BYTE_BIT
vpor ymm1, ymm1, ymm7 ; ymm1=Out1L=( 0 1 2 ... 29 30 31)
vpor ymm0, ymm0, ymm5 ; ymm0=Out1H=(32 33 34 ... 61 62 63)
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymm1
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymm0
sub rax, byte SIZEOF_YMMWORD
add rcx, byte 1*SIZEOF_YMMWORD ; inptr1(above)
add rbx, byte 1*SIZEOF_YMMWORD ; inptr0
add rsi, byte 1*SIZEOF_YMMWORD ; inptr1(below)
add rdx, byte 2*SIZEOF_YMMWORD ; outptr0
add rdi, byte 2*SIZEOF_YMMWORD ; outptr1
cmp rax, byte SIZEOF_YMMWORD
ja near .columnloop
test rax, rax
jnz near .columnloop_last
pop rsi
pop rdi
pop rcx
pop rax
add rsi, byte 1*SIZEOF_JSAMPROW ; input_data
add rdi, byte 2*SIZEOF_JSAMPROW ; output_data
sub rcx, byte 2 ; rowctr
jg near .rowloop
.return:
pop rbx
vzeroupper
uncollect_args 4
pop_xmm 3
mov rsp, rbp ; rsp <- aligned rbp
pop rsp ; rsp <- original rbp
pop rbp
ret
; --------------------------------------------------------------------------
;
; Fast processing for the common case of 2:1 horizontal and 1:1 vertical.
; It's still a box filter.
;
; GLOBAL(void)
; jsimd_h2v1_upsample_avx2(int max_v_samp_factor, JDIMENSION output_width,
; JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
;
; r10 = int max_v_samp_factor
; r11d = JDIMENSION output_width
; r12 = JSAMPARRAY input_data
; r13 = JSAMPARRAY *output_data_ptr
align 32
GLOBAL_FUNCTION(jsimd_h2v1_upsample_avx2)
EXTN(jsimd_h2v1_upsample_avx2):
push rbp
mov rax, rsp
mov rbp, rsp
collect_args 4
mov edx, r11d
add rdx, byte (SIZEOF_YMMWORD-1)
and rdx, -SIZEOF_YMMWORD
jz near .return
mov rcx, r10 ; rowctr
test rcx, rcx
jz short .return
mov rsi, r12 ; input_data
mov rdi, r13
mov rdip, JSAMPARRAY [rdi] ; output_data
.rowloop:
push rdi
push rsi
mov rsip, JSAMPROW [rsi] ; inptr
mov rdip, JSAMPROW [rdi] ; outptr
mov rax, rdx ; colctr
.columnloop:
cmp rax, byte SIZEOF_YMMWORD
ja near .above_16
vmovdqu xmm0, XMMWORD [rsi+0*SIZEOF_YMMWORD]
vpunpckhbw xmm1, xmm0, xmm0
vpunpcklbw xmm0, xmm0, xmm0
vmovdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm0
vmovdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm1
jmp short .nextrow
.above_16:
vmovdqu ymm0, YMMWORD [rsi+0*SIZEOF_YMMWORD]
vpermq ymm0, ymm0, 0xd8
vpunpckhbw ymm1, ymm0, ymm0
vpunpcklbw ymm0, ymm0, ymm0
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymm0
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymm1
sub rax, byte 2*SIZEOF_YMMWORD
jz short .nextrow
add rsi, byte SIZEOF_YMMWORD ; inptr
add rdi, byte 2*SIZEOF_YMMWORD ; outptr
jmp short .columnloop
.nextrow:
pop rsi
pop rdi
add rsi, byte SIZEOF_JSAMPROW ; input_data
add rdi, byte SIZEOF_JSAMPROW ; output_data
dec rcx ; rowctr
jg short .rowloop
.return:
vzeroupper
uncollect_args 4
pop rbp
ret
; --------------------------------------------------------------------------
;
; Fast processing for the common case of 2:1 horizontal and 2:1 vertical.
; It's still a box filter.
;
; GLOBAL(void)
; jsimd_h2v2_upsample_avx2(int max_v_samp_factor, JDIMENSION output_width,
; JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
;
; r10 = int max_v_samp_factor
; r11d = JDIMENSION output_width
; r12 = JSAMPARRAY input_data
; r13 = JSAMPARRAY *output_data_ptr
align 32
GLOBAL_FUNCTION(jsimd_h2v2_upsample_avx2)
EXTN(jsimd_h2v2_upsample_avx2):
push rbp
mov rax, rsp
mov rbp, rsp
collect_args 4
push rbx
mov edx, r11d
add rdx, byte (SIZEOF_YMMWORD-1)
and rdx, -SIZEOF_YMMWORD
jz near .return
mov rcx, r10 ; rowctr
test rcx, rcx
jz near .return
mov rsi, r12 ; input_data
mov rdi, r13
mov rdip, JSAMPARRAY [rdi] ; output_data
.rowloop:
push rdi
push rsi
mov rsip, JSAMPROW [rsi] ; inptr
mov rbxp, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] ; outptr0
mov rdip, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] ; outptr1
mov rax, rdx ; colctr
.columnloop:
cmp rax, byte SIZEOF_YMMWORD
ja short .above_16
vmovdqu xmm0, XMMWORD [rsi+0*SIZEOF_XMMWORD]
vpunpckhbw xmm1, xmm0, xmm0
vpunpcklbw xmm0, xmm0, xmm0
vmovdqu XMMWORD [rbx+0*SIZEOF_XMMWORD], xmm0
vmovdqu XMMWORD [rbx+1*SIZEOF_XMMWORD], xmm1
vmovdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm0
vmovdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm1
jmp near .nextrow
.above_16:
vmovdqu ymm0, YMMWORD [rsi+0*SIZEOF_YMMWORD]
vpermq ymm0, ymm0, 0xd8
vpunpckhbw ymm1, ymm0, ymm0
vpunpcklbw ymm0, ymm0, ymm0
vmovdqu YMMWORD [rbx+0*SIZEOF_YMMWORD], ymm0
vmovdqu YMMWORD [rbx+1*SIZEOF_YMMWORD], ymm1
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymm0
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymm1
sub rax, byte 2*SIZEOF_YMMWORD
jz short .nextrow
add rsi, byte SIZEOF_YMMWORD ; inptr
add rbx, 2*SIZEOF_YMMWORD ; outptr0
add rdi, 2*SIZEOF_YMMWORD ; outptr1
jmp short .columnloop
.nextrow:
pop rsi
pop rdi
add rsi, byte 1*SIZEOF_JSAMPROW ; input_data
add rdi, byte 2*SIZEOF_JSAMPROW ; output_data
sub rcx, byte 2 ; rowctr
jg near .rowloop
.return:
pop rbx
vzeroupper
uncollect_args 4
pop rbp
ret
; For some reason, the OS X linker does not honor the request to align the
; segment unless we do this.
align 32
|
