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
|
;******************************************************************************
;* MMX/SSE2-optimized functions for the VP3 decoder
;* Copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
;*
;* This file is part of Libav.
;*
;* Libav is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* Libav 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
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with Libav; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "libavutil/x86/x86util.asm"
; MMX-optimized functions cribbed from the original VP3 source code.
SECTION_RODATA
vp3_idct_data: times 8 dw 64277
times 8 dw 60547
times 8 dw 54491
times 8 dw 46341
times 8 dw 36410
times 8 dw 25080
times 8 dw 12785
pb_7: times 8 db 0x07
pb_1F: times 8 db 0x1f
pb_81: times 8 db 0x81
cextern pb_1
cextern pb_3
cextern pb_80
cextern pw_8
SECTION .text
; this is off by one or two for some cases when filter_limit is greater than 63
; in: p0 in mm6, p1 in mm4, p2 in mm2, p3 in mm1
; out: p1 in mm4, p2 in mm3
%macro VP3_LOOP_FILTER 0
movq m7, m6
pand m6, [pb_7] ; p0&7
psrlw m7, 3
pand m7, [pb_1F] ; p0>>3
movq m3, m2 ; p2
pxor m2, m4
pand m2, [pb_1] ; (p2^p1)&1
movq m5, m2
paddb m2, m2
paddb m2, m5 ; 3*(p2^p1)&1
paddb m2, m6 ; extra bits lost in shifts
pcmpeqb m0, m0
pxor m1, m0 ; 255 - p3
pavgb m1, m2 ; (256 - p3 + extrabits) >> 1
pxor m0, m4 ; 255 - p1
pavgb m0, m3 ; (256 + p2-p1) >> 1
paddb m1, [pb_3]
pavgb m1, m0 ; 128+2+( p2-p1 - p3) >> 2
pavgb m1, m0 ; 128+1+(3*(p2-p1) - p3) >> 3
paddusb m7, m1 ; d+128+1
movq m6, [pb_81]
psubusb m6, m7
psubusb m7, [pb_81]
movq m5, [r2+516] ; flim
pminub m6, m5
pminub m7, m5
movq m0, m6
movq m1, m7
paddb m6, m6
paddb m7, m7
pminub m6, m5
pminub m7, m5
psubb m6, m0
psubb m7, m1
paddusb m4, m7
psubusb m4, m6
psubusb m3, m7
paddusb m3, m6
%endmacro
%macro STORE_4_WORDS 1
movd r2d, %1
mov [r0 -1], r2w
psrlq %1, 32
shr r2, 16
mov [r0+r1 -1], r2w
movd r2d, %1
mov [r0+r1*2-1], r2w
shr r2, 16
mov [r0+r3 -1], r2w
%endmacro
INIT_MMX mmxext
cglobal vp3_v_loop_filter, 3, 4
mov r3, r1
neg r1
movq m6, [r0+r1*2]
movq m4, [r0+r1 ]
movq m2, [r0 ]
movq m1, [r0+r3 ]
VP3_LOOP_FILTER
movq [r0+r1], m4
movq [r0 ], m3
RET
cglobal vp3_h_loop_filter, 3, 4
lea r3, [r1*3]
movd m6, [r0 -2]
movd m4, [r0+r1 -2]
movd m2, [r0+r1*2-2]
movd m1, [r0+r3 -2]
lea r0, [r0+r1*4 ]
punpcklbw m6, [r0 -2]
punpcklbw m4, [r0+r1 -2]
punpcklbw m2, [r0+r1*2-2]
punpcklbw m1, [r0+r3 -2]
sub r0, r3
sub r0, r1
TRANSPOSE4x4B 6, 4, 2, 1, 0
VP3_LOOP_FILTER
SBUTTERFLY bw, 4, 3, 5
STORE_4_WORDS m4
lea r0, [r0+r1*4 ]
STORE_4_WORDS m3
RET
; from original comments: The Macro does IDct on 4 1-D Dcts
%macro BeginIDCT 0
movq m2, I(3)
movq m6, C(3)
movq m4, m2
movq m7, J(5)
pmulhw m4, m6 ; r4 = c3*i3 - i3
movq m1, C(5)
pmulhw m6, m7 ; r6 = c3*i5 - i5
movq m5, m1
pmulhw m1, m2 ; r1 = c5*i3 - i3
movq m3, I(1)
pmulhw m5, m7 ; r5 = c5*i5 - i5
movq m0, C(1)
paddw m4, m2 ; r4 = c3*i3
paddw m6, m7 ; r6 = c3*i5
paddw m2, m1 ; r2 = c5*i3
movq m1, J(7)
paddw m7, m5 ; r7 = c5*i5
movq m5, m0 ; r5 = c1
pmulhw m0, m3 ; r0 = c1*i1 - i1
paddsw m4, m7 ; r4 = C = c3*i3 + c5*i5
pmulhw m5, m1 ; r5 = c1*i7 - i7
movq m7, C(7)
psubsw m6, m2 ; r6 = D = c3*i5 - c5*i3
paddw m0, m3 ; r0 = c1*i1
pmulhw m3, m7 ; r3 = c7*i1
movq m2, I(2)
pmulhw m7, m1 ; r7 = c7*i7
paddw m5, m1 ; r5 = c1*i7
movq m1, m2 ; r1 = i2
pmulhw m2, C(2) ; r2 = c2*i2 - i2
psubsw m3, m5 ; r3 = B = c7*i1 - c1*i7
movq m5, J(6)
paddsw m0, m7 ; r0 = A = c1*i1 + c7*i7
movq m7, m5 ; r7 = i6
psubsw m0, m4 ; r0 = A - C
pmulhw m5, C(2) ; r5 = c2*i6 - i6
paddw m2, m1 ; r2 = c2*i2
pmulhw m1, C(6) ; r1 = c6*i2
paddsw m4, m4 ; r4 = C + C
paddsw m4, m0 ; r4 = C. = A + C
psubsw m3, m6 ; r3 = B - D
paddw m5, m7 ; r5 = c2*i6
paddsw m6, m6 ; r6 = D + D
pmulhw m7, C(6) ; r7 = c6*i6
paddsw m6, m3 ; r6 = D. = B + D
movq I(1), m4 ; save C. at I(1)
psubsw m1, m5 ; r1 = H = c6*i2 - c2*i6
movq m4, C(4)
movq m5, m3 ; r5 = B - D
pmulhw m3, m4 ; r3 = (c4 - 1) * (B - D)
paddsw m7, m2 ; r3 = (c4 - 1) * (B - D)
movq I(2), m6 ; save D. at I(2)
movq m2, m0 ; r2 = A - C
movq m6, I(0)
pmulhw m0, m4 ; r0 = (c4 - 1) * (A - C)
paddw m5, m3 ; r5 = B. = c4 * (B - D)
movq m3, J(4)
psubsw m5, m1 ; r5 = B.. = B. - H
paddw m2, m0 ; r0 = A. = c4 * (A - C)
psubsw m6, m3 ; r6 = i0 - i4
movq m0, m6
pmulhw m6, m4 ; r6 = (c4 - 1) * (i0 - i4)
paddsw m3, m3 ; r3 = i4 + i4
paddsw m1, m1 ; r1 = H + H
paddsw m3, m0 ; r3 = i0 + i4
paddsw m1, m5 ; r1 = H. = B + H
pmulhw m4, m3 ; r4 = (c4 - 1) * (i0 + i4)
paddsw m6, m0 ; r6 = F = c4 * (i0 - i4)
psubsw m6, m2 ; r6 = F. = F - A.
paddsw m2, m2 ; r2 = A. + A.
movq m0, I(1) ; r0 = C.
paddsw m2, m6 ; r2 = A.. = F + A.
paddw m4, m3 ; r4 = E = c4 * (i0 + i4)
psubsw m2, m1 ; r2 = R2 = A.. - H.
%endmacro
; RowIDCT gets ready to transpose
%macro RowIDCT 0
BeginIDCT
movq m3, I(2) ; r3 = D.
psubsw m4, m7 ; r4 = E. = E - G
paddsw m1, m1 ; r1 = H. + H.
paddsw m7, m7 ; r7 = G + G
paddsw m1, m2 ; r1 = R1 = A.. + H.
paddsw m7, m4 ; r1 = R1 = A.. + H.
psubsw m4, m3 ; r4 = R4 = E. - D.
paddsw m3, m3
psubsw m6, m5 ; r6 = R6 = F. - B..
paddsw m5, m5
paddsw m3, m4 ; r3 = R3 = E. + D.
paddsw m5, m6 ; r5 = R5 = F. + B..
psubsw m7, m0 ; r7 = R7 = G. - C.
paddsw m0, m0
movq I(1), m1 ; save R1
paddsw m0, m7 ; r0 = R0 = G. + C.
%endmacro
; Column IDCT normalizes and stores final results
%macro ColumnIDCT 0
BeginIDCT
paddsw m2, OC_8 ; adjust R2 (and R1) for shift
paddsw m1, m1 ; r1 = H. + H.
paddsw m1, m2 ; r1 = R1 = A.. + H.
psraw m2, 4 ; r2 = NR2
psubsw m4, m7 ; r4 = E. = E - G
psraw m1, 4 ; r1 = NR2
movq m3, I(2) ; r3 = D.
paddsw m7, m7 ; r7 = G + G
movq I(2), m2 ; store NR2 at I2
paddsw m7, m4 ; r7 = G. = E + G
movq I(1), m1 ; store NR1 at I1
psubsw m4, m3 ; r4 = R4 = E. - D.
paddsw m4, OC_8 ; adjust R4 (and R3) for shift
paddsw m3, m3 ; r3 = D. + D.
paddsw m3, m4 ; r3 = R3 = E. + D.
psraw m4, 4 ; r4 = NR4
psubsw m6, m5 ; r6 = R6 = F. - B..
psraw m3, 4 ; r3 = NR3
paddsw m6, OC_8 ; adjust R6 (and R5) for shift
paddsw m5, m5 ; r5 = B.. + B..
paddsw m5, m6 ; r5 = R5 = F. + B..
psraw m6, 4 ; r6 = NR6
movq J(4), m4 ; store NR4 at J4
psraw m5, 4 ; r5 = NR5
movq I(3), m3 ; store NR3 at I3
psubsw m7, m0 ; r7 = R7 = G. - C.
paddsw m7, OC_8 ; adjust R7 (and R0) for shift
paddsw m0, m0 ; r0 = C. + C.
paddsw m0, m7 ; r0 = R0 = G. + C.
psraw m7, 4 ; r7 = NR7
movq J(6), m6 ; store NR6 at J6
psraw m0, 4 ; r0 = NR0
movq J(5), m5 ; store NR5 at J5
movq J(7), m7 ; store NR7 at J7
movq I(0), m0 ; store NR0 at I0
%endmacro
; Following macro does two 4x4 transposes in place.
;
; At entry (we assume):
;
; r0 = a3 a2 a1 a0
; I(1) = b3 b2 b1 b0
; r2 = c3 c2 c1 c0
; r3 = d3 d2 d1 d0
;
; r4 = e3 e2 e1 e0
; r5 = f3 f2 f1 f0
; r6 = g3 g2 g1 g0
; r7 = h3 h2 h1 h0
;
; At exit, we have:
;
; I(0) = d0 c0 b0 a0
; I(1) = d1 c1 b1 a1
; I(2) = d2 c2 b2 a2
; I(3) = d3 c3 b3 a3
;
; J(4) = h0 g0 f0 e0
; J(5) = h1 g1 f1 e1
; J(6) = h2 g2 f2 e2
; J(7) = h3 g3 f3 e3
;
; I(0) I(1) I(2) I(3) is the transpose of r0 I(1) r2 r3.
; J(4) J(5) J(6) J(7) is the transpose of r4 r5 r6 r7.
;
; Since r1 is free at entry, we calculate the Js first.
%macro Transpose 0
movq m1, m4 ; r1 = e3 e2 e1 e0
punpcklwd m4, m5 ; r4 = f1 e1 f0 e0
movq I(0), m0 ; save a3 a2 a1 a0
punpckhwd m1, m5 ; r1 = f3 e3 f2 e2
movq m0, m6 ; r0 = g3 g2 g1 g0
punpcklwd m6, m7 ; r6 = h1 g1 h0 g0
movq m5, m4 ; r5 = f1 e1 f0 e0
punpckldq m4, m6 ; r4 = h0 g0 f0 e0 = R4
punpckhdq m5, m6 ; r5 = h1 g1 f1 e1 = R5
movq m6, m1 ; r6 = f3 e3 f2 e2
movq J(4), m4
punpckhwd m0, m7 ; r0 = h3 g3 h2 g2
movq J(5), m5
punpckhdq m6, m0 ; r6 = h3 g3 f3 e3 = R7
movq m4, I(0) ; r4 = a3 a2 a1 a0
punpckldq m1, m0 ; r1 = h2 g2 f2 e2 = R6
movq m5, I(1) ; r5 = b3 b2 b1 b0
movq m0, m4 ; r0 = a3 a2 a1 a0
movq J(7), m6
punpcklwd m0, m5 ; r0 = b1 a1 b0 a0
movq J(6), m1
punpckhwd m4, m5 ; r4 = b3 a3 b2 a2
movq m5, m2 ; r5 = c3 c2 c1 c0
punpcklwd m2, m3 ; r2 = d1 c1 d0 c0
movq m1, m0 ; r1 = b1 a1 b0 a0
punpckldq m0, m2 ; r0 = d0 c0 b0 a0 = R0
punpckhdq m1, m2 ; r1 = d1 c1 b1 a1 = R1
movq m2, m4 ; r2 = b3 a3 b2 a2
movq I(0), m0
punpckhwd m5, m3 ; r5 = d3 c3 d2 c2
movq I(1), m1
punpckhdq m4, m5 ; r4 = d3 c3 b3 a3 = R3
punpckldq m2, m5 ; r2 = d2 c2 b2 a2 = R2
movq I(3), m4
movq I(2), m2
%endmacro
%macro VP3_1D_IDCT_SSE2 0
movdqa m2, I(3) ; xmm2 = i3
movdqa m6, C(3) ; xmm6 = c3
movdqa m4, m2 ; xmm4 = i3
movdqa m7, I(5) ; xmm7 = i5
pmulhw m4, m6 ; xmm4 = c3 * i3 - i3
movdqa m1, C(5) ; xmm1 = c5
pmulhw m6, m7 ; xmm6 = c3 * i5 - i5
movdqa m5, m1 ; xmm5 = c5
pmulhw m1, m2 ; xmm1 = c5 * i3 - i3
movdqa m3, I(1) ; xmm3 = i1
pmulhw m5, m7 ; xmm5 = c5 * i5 - i5
movdqa m0, C(1) ; xmm0 = c1
paddw m4, m2 ; xmm4 = c3 * i3
paddw m6, m7 ; xmm6 = c3 * i5
paddw m2, m1 ; xmm2 = c5 * i3
movdqa m1, I(7) ; xmm1 = i7
paddw m7, m5 ; xmm7 = c5 * i5
movdqa m5, m0 ; xmm5 = c1
pmulhw m0, m3 ; xmm0 = c1 * i1 - i1
paddsw m4, m7 ; xmm4 = c3 * i3 + c5 * i5 = C
pmulhw m5, m1 ; xmm5 = c1 * i7 - i7
movdqa m7, C(7) ; xmm7 = c7
psubsw m6, m2 ; xmm6 = c3 * i5 - c5 * i3 = D
paddw m0, m3 ; xmm0 = c1 * i1
pmulhw m3, m7 ; xmm3 = c7 * i1
movdqa m2, I(2) ; xmm2 = i2
pmulhw m7, m1 ; xmm7 = c7 * i7
paddw m5, m1 ; xmm5 = c1 * i7
movdqa m1, m2 ; xmm1 = i2
pmulhw m2, C(2) ; xmm2 = i2 * c2 -i2
psubsw m3, m5 ; xmm3 = c7 * i1 - c1 * i7 = B
movdqa m5, I(6) ; xmm5 = i6
paddsw m0, m7 ; xmm0 = c1 * i1 + c7 * i7 = A
movdqa m7, m5 ; xmm7 = i6
psubsw m0, m4 ; xmm0 = A - C
pmulhw m5, C(2) ; xmm5 = c2 * i6 - i6
paddw m2, m1 ; xmm2 = i2 * c2
pmulhw m1, C(6) ; xmm1 = c6 * i2
paddsw m4, m4 ; xmm4 = C + C
paddsw m4, m0 ; xmm4 = A + C = C.
psubsw m3, m6 ; xmm3 = B - D
paddw m5, m7 ; xmm5 = c2 * i6
paddsw m6, m6 ; xmm6 = D + D
pmulhw m7, C(6) ; xmm7 = c6 * i6
paddsw m6, m3 ; xmm6 = B + D = D.
movdqa I(1), m4 ; Save C. at I(1)
psubsw m1, m5 ; xmm1 = c6 * i2 - c2 * i6 = H
movdqa m4, C(4) ; xmm4 = C4
movdqa m5, m3 ; xmm5 = B - D
pmulhw m3, m4 ; xmm3 = ( c4 -1 ) * ( B - D )
paddsw m7, m2 ; xmm7 = c2 * i2 + c6 * i6 = G
movdqa I(2), m6 ; save D. at I(2)
movdqa m2, m0 ; xmm2 = A - C
movdqa m6, I(0) ; xmm6 = i0
pmulhw m0, m4 ; xmm0 = ( c4 - 1 ) * ( A - C ) = A.
paddw m5, m3 ; xmm5 = c4 * ( B - D ) = B.
movdqa m3, I(4) ; xmm3 = i4
psubsw m5, m1 ; xmm5 = B. - H = B..
paddw m2, m0 ; xmm2 = c4 * ( A - C) = A.
psubsw m6, m3 ; xmm6 = i0 - i4
movdqa m0, m6 ; xmm0 = i0 - i4
pmulhw m6, m4 ; xmm6 = (c4 - 1) * (i0 - i4) = F
paddsw m3, m3 ; xmm3 = i4 + i4
paddsw m1, m1 ; xmm1 = H + H
paddsw m3, m0 ; xmm3 = i0 + i4
paddsw m1, m5 ; xmm1 = B. + H = H.
pmulhw m4, m3 ; xmm4 = ( c4 - 1 ) * ( i0 + i4 )
paddw m6, m0 ; xmm6 = c4 * ( i0 - i4 )
psubsw m6, m2 ; xmm6 = F - A. = F.
paddsw m2, m2 ; xmm2 = A. + A.
movdqa m0, I(1) ; Load C. from I(1)
paddsw m2, m6 ; xmm2 = F + A. = A..
paddw m4, m3 ; xmm4 = c4 * ( i0 + i4 ) = 3
psubsw m2, m1 ; xmm2 = A.. - H. = R2
ADD(m2) ; Adjust R2 and R1 before shifting
paddsw m1, m1 ; xmm1 = H. + H.
paddsw m1, m2 ; xmm1 = A.. + H. = R1
SHIFT(m2) ; xmm2 = op2
psubsw m4, m7 ; xmm4 = E - G = E.
SHIFT(m1) ; xmm1 = op1
movdqa m3, I(2) ; Load D. from I(2)
paddsw m7, m7 ; xmm7 = G + G
paddsw m7, m4 ; xmm7 = E + G = G.
psubsw m4, m3 ; xmm4 = E. - D. = R4
ADD(m4) ; Adjust R4 and R3 before shifting
paddsw m3, m3 ; xmm3 = D. + D.
paddsw m3, m4 ; xmm3 = E. + D. = R3
SHIFT(m4) ; xmm4 = op4
psubsw m6, m5 ; xmm6 = F. - B..= R6
SHIFT(m3) ; xmm3 = op3
ADD(m6) ; Adjust R6 and R5 before shifting
paddsw m5, m5 ; xmm5 = B.. + B..
paddsw m5, m6 ; xmm5 = F. + B.. = R5
SHIFT(m6) ; xmm6 = op6
SHIFT(m5) ; xmm5 = op5
psubsw m7, m0 ; xmm7 = G. - C. = R7
ADD(m7) ; Adjust R7 and R0 before shifting
paddsw m0, m0 ; xmm0 = C. + C.
paddsw m0, m7 ; xmm0 = G. + C.
SHIFT(m7) ; xmm7 = op7
SHIFT(m0) ; xmm0 = op0
%endmacro
%macro PUT_BLOCK 8
movdqa O(0), m%1
movdqa O(1), m%2
movdqa O(2), m%3
movdqa O(3), m%4
movdqa O(4), m%5
movdqa O(5), m%6
movdqa O(6), m%7
movdqa O(7), m%8
%endmacro
%macro VP3_IDCT 1
%if mmsize == 16
%define I(x) [%1+16*x]
%define O(x) [%1+16*x]
%define C(x) [vp3_idct_data+16*(x-1)]
%define SHIFT(x)
%define ADD(x)
VP3_1D_IDCT_SSE2
%if ARCH_X86_64
TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, 8
%else
TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, [%1], [%1+16]
%endif
PUT_BLOCK 0, 1, 2, 3, 4, 5, 6, 7
%define SHIFT(x) psraw x, 4
%define ADD(x) paddsw x, [pw_8]
VP3_1D_IDCT_SSE2
PUT_BLOCK 0, 1, 2, 3, 4, 5, 6, 7
%else ; mmsize == 8
; eax = quantized input
; ebx = dequantizer matrix
; ecx = IDCT constants
; M(I) = ecx + MaskOffset(0) + I * 8
; C(I) = ecx + CosineOffset(32) + (I-1) * 8
; edx = output
; r0..r7 = mm0..mm7
%define OC_8 [pw_8]
%define C(x) [vp3_idct_data+16*(x-1)]
; at this point, function has completed dequantization + dezigzag +
; partial transposition; now do the idct itself
%define I(x) [%1+16*x]
%define J(x) [%1+16*x]
RowIDCT
Transpose
%define I(x) [%1+16*x+8]
%define J(x) [%1+16*x+8]
RowIDCT
Transpose
%define I(x) [%1+16* x]
%define J(x) [%1+16*(x-4)+8]
ColumnIDCT
%define I(x) [%1+16* x +64]
%define J(x) [%1+16*(x-4)+72]
ColumnIDCT
%endif ; mmsize == 16/8
%endmacro
%macro vp3_idct_funcs 0
cglobal vp3_idct_put, 3, 4, 9
VP3_IDCT r2
mova m4, [pb_80]
lea r3, [r1*3]
%assign %%i 0
%rep 16/mmsize
mova m0, [r2+mmsize*0+%%i]
mova m1, [r2+mmsize*2+%%i]
mova m2, [r2+mmsize*4+%%i]
mova m3, [r2+mmsize*6+%%i]
%if mmsize == 8
packsswb m0, [r2+mmsize*8+%%i]
packsswb m1, [r2+mmsize*10+%%i]
packsswb m2, [r2+mmsize*12+%%i]
packsswb m3, [r2+mmsize*14+%%i]
%else
packsswb m0, [r2+mmsize*1+%%i]
packsswb m1, [r2+mmsize*3+%%i]
packsswb m2, [r2+mmsize*5+%%i]
packsswb m3, [r2+mmsize*7+%%i]
%endif
paddb m0, m4
paddb m1, m4
paddb m2, m4
paddb m3, m4
movq [r0 ], m0
%if mmsize == 8
movq [r0+r1 ], m1
movq [r0+r1*2], m2
movq [r0+r3 ], m3
%else
movhps [r0+r1 ], m0
movq [r0+r1*2], m1
movhps [r0+r3 ], m1
%endif
%if %%i == 0
lea r0, [r0+r1*4]
%endif
%if mmsize == 16
movq [r0 ], m2
movhps [r0+r1 ], m2
movq [r0+r1*2], m3
movhps [r0+r3 ], m3
%endif
%assign %%i %%i+8
%endrep
pxor m0, m0
%assign %%offset 0
%rep 128/mmsize
mova [r2+%%offset], m0
%assign %%offset %%offset+mmsize
%endrep
RET
cglobal vp3_idct_add, 3, 4, 9
VP3_IDCT r2
lea r3, [r1*3]
pxor m4, m4
%if mmsize == 16
%assign %%i 0
%rep 2
movq m0, [r0]
movq m1, [r0+r1]
movq m2, [r0+r1*2]
movq m3, [r0+r3]
punpcklbw m0, m4
punpcklbw m1, m4
punpcklbw m2, m4
punpcklbw m3, m4
paddsw m0, [r2+ 0+%%i]
paddsw m1, [r2+16+%%i]
paddsw m2, [r2+32+%%i]
paddsw m3, [r2+48+%%i]
packuswb m0, m1
packuswb m2, m3
movq [r0 ], m0
movhps [r0+r1 ], m0
movq [r0+r1*2], m2
movhps [r0+r3 ], m2
%if %%i == 0
lea r0, [r0+r1*4]
%endif
%assign %%i %%i+64
%endrep
%else
%assign %%i 0
%rep 2
movq m0, [r0]
movq m1, [r0+r1]
movq m2, [r0+r1*2]
movq m3, [r0+r3]
movq m5, m0
movq m6, m1
movq m7, m2
punpcklbw m0, m4
punpcklbw m1, m4
punpcklbw m2, m4
punpckhbw m5, m4
punpckhbw m6, m4
punpckhbw m7, m4
paddsw m0, [r2+ 0+%%i]
paddsw m1, [r2+16+%%i]
paddsw m2, [r2+32+%%i]
paddsw m5, [r2+64+%%i]
paddsw m6, [r2+80+%%i]
paddsw m7, [r2+96+%%i]
packuswb m0, m5
movq m5, m3
punpcklbw m3, m4
punpckhbw m5, m4
packuswb m1, m6
paddsw m3, [r2+48+%%i]
paddsw m5, [r2+112+%%i]
packuswb m2, m7
packuswb m3, m5
movq [r0 ], m0
movq [r0+r1 ], m1
movq [r0+r1*2], m2
movq [r0+r3 ], m3
%if %%i == 0
lea r0, [r0+r1*4]
%endif
%assign %%i %%i+8
%endrep
%endif
%assign %%i 0
%rep 128/mmsize
mova [r2+%%i], m4
%assign %%i %%i+mmsize
%endrep
RET
%endmacro
%if ARCH_X86_32
INIT_MMX mmx
vp3_idct_funcs
%endif
INIT_XMM sse2
vp3_idct_funcs
%macro DC_ADD 0
movq m2, [r0 ]
movq m3, [r0+r1 ]
paddusb m2, m0
movq m4, [r0+r1*2]
paddusb m3, m0
movq m5, [r0+r2 ]
paddusb m4, m0
paddusb m5, m0
psubusb m2, m1
psubusb m3, m1
movq [r0 ], m2
psubusb m4, m1
movq [r0+r1 ], m3
psubusb m5, m1
movq [r0+r1*2], m4
movq [r0+r2 ], m5
%endmacro
INIT_MMX mmxext
cglobal vp3_idct_dc_add, 3, 4
movsx r3, word [r2]
mov word [r2], 0
lea r2, [r1*3]
add r3, 15
sar r3, 5
movd m0, r3d
pshufw m0, m0, 0x0
pxor m1, m1
psubw m1, m0
packuswb m0, m0
packuswb m1, m1
DC_ADD
lea r0, [r0+r1*4]
DC_ADD
RET
|
