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
|
@/*****************************************************************************
@*
@* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore
@*
@* Licensed under the Apache License, Version 2.0 (the "License");
@* you may not use this file except in compliance with the License.
@* You may obtain a copy of the License at:
@*
@* http://www.apache.org/licenses/LICENSE-2.0
@*
@* Unless required by applicable law or agreed to in writing, software
@* distributed under the License is distributed on an "AS IS" BASIS,
@* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@* See the License for the specific language governing permissions and
@* limitations under the License.
@*
@*****************************************************************************/
@/**
@*******************************************************************************
@* @file
@* ihevc_intra_pred_luma_mode_19_to_25.s
@*
@* @brief
@* contains function definitions for intra prediction dc filtering.
@* functions are coded using neon intrinsics and can be compiled using
@* rvct
@*
@* @author
@* naveen sr
@*
@* @par list of functions:
@*
@*
@* @remarks
@* none
@*
@*******************************************************************************
@*/
@/**
@*******************************************************************************
@*
@* @brief
@* luma intraprediction filter for dc input
@*
@* @par description:
@*
@* @param[in] pu1_ref
@* uword8 pointer to the source
@*
@* @param[out] pu1_dst
@* uword8 pointer to the destination
@*
@* @param[in] src_strd
@* integer source stride
@*
@* @param[in] dst_strd
@* integer destination stride
@*
@* @param[in] nt
@* size of tranform block
@*
@* @param[in] mode
@* type of filtering
@*
@* @returns
@*
@* @remarks
@* none
@*
@*******************************************************************************
@*/
@void ihevc_intra_pred_luma_mode_19_to_25(uword8* pu1_ref,
@ word32 src_strd,
@ uword8* pu1_dst,
@ word32 dst_strd,
@ word32 nt,
@ word32 mode)
@
@**************variables vs registers*****************************************
@r0 => *pu1_ref
@r1 => src_strd
@r2 => *pu1_dst
@r3 => dst_strd
@stack contents from #236
@ nt
@ mode
.equ nt_offset, 236
.equ mode_offset, 240
.text
.align 4
.globl ihevc_intra_pred_luma_mode_19_to_25_a9q
.extern gai4_ihevc_ang_table
.extern gai4_ihevc_inv_ang_table
.extern gau1_ihevc_planar_factor
gai4_ihevc_inv_ang_table_addr:
.long gai4_ihevc_inv_ang_table - ulbl1 - 8
gau1_ihevc_planar_factor_addr:
.long gau1_ihevc_planar_factor - ulbl2 - 8
gai4_ihevc_ang_table_addr_1:
.long gai4_ihevc_ang_table - ulbl_1 - 8
gai4_ihevc_ang_table_addr_2:
.long gai4_ihevc_ang_table - ulbl_2 - 8
.type ihevc_intra_pred_luma_mode_19_to_25_a9q, %function
ihevc_intra_pred_luma_mode_19_to_25_a9q:
stmfd sp!, {r4-r12, r14} @stack stores the values of the arguments
vpush {d8 - d15}
sub sp, sp, #132 @ref_temp[2 * max_cu_size + 1]
ldr r4,[sp,#nt_offset] @loads nt
ldr r7, gai4_ihevc_ang_table_addr_1
ulbl_1:
add r7,r7,pc
ldr r5,[sp,#mode_offset] @mode (19 to 25)
ldr r8, gai4_ihevc_inv_ang_table_addr
ulbl1:
add r8,r8,pc
add r7, r7, r5, lsl #2 @gai4_ihevc_ang_table[mode]
add r8, r8, r5, lsl #2 @gai4_ihevc_inv_ang_table
sub r8, r8, #48 @gai4_ihevc_inv_ang_table[mode - 12]
ldr r7, [r7] @intra_pred_ang
ldr r8, [r8] @inv_ang
add r6, sp, r4 @ref_temp + nt
mul r9, r4, r7 @nt*intra_pred_ang
sub r6, r6, #1 @ref_temp + nt - 1
add r1, r0, r4, lsl #1 @r1 = &src[2nt]
vdup.8 d30, r7 @intra_pred_ang
mov r7, r4
asr r9, r9, #5
vld1.32 d0[0],[r1]! @ pu1_ref[two_nt + k]
vst1.32 d0[0],[r6]! @ref_temp[k + nt - 1] = pu1_ref[two_nt + k]@
subs r7, r7, #4
beq end_loop_copy
sub r1,#4
sub r6,#4
subs r7,r7,#4
beq loop_copy_8
subs r7,r7,#8
beq loop_copy_16
loop_copy_32:
vld1.8 d0,[r1]!
vld1.8 d1,[r1]!
vld1.8 d2,[r1]!
vld1.8 d3,[r1]!
vst1.8 d0,[r6]!
vst1.8 d1,[r6]!
vst1.8 d2,[r6]!
vst1.8 d3,[r6]!
b end_loop_copy
loop_copy_16:
vld1.8 d0,[r1]!
vld1.8 d1,[r1]!
vst1.8 d0,[r6]!
vst1.8 d1,[r6]!
b end_loop_copy
loop_copy_8:
vld1.8 d0,[r1]!
vst1.8 d0,[r6]!
end_loop_copy:
ldrb r11, [r1]
strb r11, [r6]
cmp r9, #-1
bge linear_filtering
add r6, sp, r4 @ref_temp + nt
sub r6, r6, #2 @ref_temp + nt - 2
mov r12, #0xffffffff
rsb r9, r9, r12 @count to take care off ref_idx
add r1, r0, r4, lsl #1 @r1 = &src[2nt]
mov r7, #128 @inv_ang_sum
loop_copy_ref_idx:
add r7, r7, r8 @inv_ang_sum += inv_ang
mov r14,r7,lsr #8
ldrb r11, [r1, -r14]
@ ldrb r11, [r1, -r7, lsr #8]
strb r11, [r6], #-1
subs r9, r9, #1
bne loop_copy_ref_idx
linear_filtering:
@ after copy
@ below code is taken from mode 27 to 33 and modified
ldr r6,gai4_ihevc_ang_table_addr_2 @loads word32 gai4_ihevc_ang_table[35]
ulbl_2:
add r6,r6,pc
add r8,r6,r5,lsl #2 @*gai4_ihevc_ang_table[mode]
ldr r9,[r8] @intra_pred_ang = gai4_ihevc_ang_table[mode]
ldr r1,gau1_ihevc_planar_factor_addr @used for ((row + 1) * intra_pred_ang) row values
ulbl2:
add r1,r1,pc
add r6,r1,#1
add r8, sp, r4 @ref_temp + nt
sub r8,#1 @ref_temp + nt -1
tst r4,#7
mov lr,#0 @row
mov r12,r4
bne core_loop_4
core_loop_8:
add r8,r8,#1 @pu1_ref_main_idx += (two_nt + 1)
vdup.8 d0,r9 @intra_pred_ang
mov r12,r4,lsr #3 @divide by 8
vmov.i8 d1,#32
mul r7,r4,r12
vmov.i16 q3,#31
@lsl r12,r3,#3
mov r1,r8
@sub r12,r12,r4
mov r5,r4
mov r11,#1
prologue:
vld1.8 {d3},[r6] @loads the row value
vmull.s8 q1,d3,d0 @pos = ((row + 1) * intra_pred_ang)
vand q2,q1,q3 @dup_const_fract(fract = pos & (31))
vmovn.i16 d4,q2
vshrn.s16 d5,q1,#5 @idx = pos >> 5
vdup.8 d31,d4[0]
add r0,r2,r3
vmov.u32 lr,d5[0] @(i row)extract idx to the r register
vdup.8 d29,d4[1] @(ii)
sbfx r9,lr,#0,#8
add r10,r8,r9 @(i row)*pu1_ref[ref_main_idx]
vld1.8 {d8},[r10],r11 @(i row)ref_main_idx
sbfx r9,lr,#8,#8
vld1.8 {d9},[r10] @(i row)ref_main_idx_1
add r12,r8,r9 @(ii)*pu1_ref[ref_main_idx]
sbfx r9,lr,#16,#8
vsub.u8 d30,d1,d31 @32-fract(dup_const_32_fract)
add r10,r8,r9 @(iii)*pu1_ref[ref_main_idx]
vld1.8 {d12},[r12],r11 @(ii)ref_main_idx
vmull.u8 q5,d8,d30 @(i row)vmull_u8(ref_main_idx, dup_const_32_fract)
vld1.8 {d13},[r12] @(ii)ref_main_idx_1
vmlal.u8 q5,d9,d31 @(i row)vmull_u8(ref_main_idx_1, dup_const_fract)
vdup.8 d27,d4[2] @(iii)
vsub.u8 d28,d1,d29 @(ii)32-fract(dup_const_32_fract)
sbfx r9,lr,#24,#8
vdup.8 d25,d4[3] @(iv)
vmull.u8 q7,d12,d28 @(ii)vmull_u8(ref_main_idx, dup_const_32_fract)
add r12,r8,r9 @(iv)*pu1_ref[ref_main_idx]
vld1.8 {d16},[r10],r11 @(iii)ref_main_idx
vmlal.u8 q7,d13,d29 @(ii)vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.8 {d17},[r10] @(iii)ref_main_idx_1
vrshrn.i16 d10,q5,#5 @(i row)shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d20},[r12],r11 @(iv)ref_main_idx
vsub.u8 d26,d1,d27 @(iii)32-fract(dup_const_32_fract)
vld1.8 {d21},[r12] @(iv)ref_main_idx_1
vdup.8 d31,d4[4] @(v)
vmull.u8 q9,d16,d26 @(iii)vmull_u8(ref_main_idx, dup_const_32_fract)
vmov.u32 lr,d5[1] @extract idx to the r register
vmlal.u8 q9,d17,d27 @(iii)vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.8 {d10},[r2]! @(i row)
vrshrn.i16 d14,q7,#5 @(ii)shift_res = vrshrn_n_u16(add_res, 5)
sbfx r9,lr,#0,#8
vdup.8 d29,d4[5] @(vi)
add r10,r8,r9 @(v)*pu1_ref[ref_main_idx]
vld1.8 {d8},[r10],r11 @(v)ref_main_idx
vsub.u8 d24,d1,d25 @(iv)32-fract(dup_const_32_fract)
vmull.u8 q11,d20,d24 @(iv)vmull_u8(ref_main_idx, dup_const_32_fract)
sbfx r9,lr,#8,#8
vld1.8 {d9},[r10] @(v)ref_main_idx_1
vmlal.u8 q11,d21,d25 @(iv)vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.8 {d14},[r0],r3 @(ii)
vrshrn.i16 d18,q9,#5 @(iii)shift_res = vrshrn_n_u16(add_res, 5)
add r12,r8,r9 @(vi)*pu1_ref[ref_main_idx]
vdup.8 d27,d4[6] @(vii)
sbfx r9,lr,#16,#8
vsub.u8 d30,d1,d31 @(v)32-fract(dup_const_32_fract)
add r10,r8,r9 @(vii)*pu1_ref[ref_main_idx]
vld1.8 {d12},[r12],r11 @(vi)ref_main_idx
vmull.u8 q5,d8,d30 @(v)vmull_u8(ref_main_idx, dup_const_32_fract)
vld1.8 {d13},[r12] @(vi)ref_main_idx_1
vmlal.u8 q5,d9,d31 @(v)vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.8 {d18},[r0],r3 @(iii)
vrshrn.i16 d22,q11,#5 @(iv)shift_res = vrshrn_n_u16(add_res, 5)
vdup.8 d25,d4[7] @(viii)
sbfx r9,lr,#24,#8
vld1.8 {d16},[r10],r11 @(vii)ref_main_idx
vsub.u8 d28,d1,d29 @(vi)32-fract(dup_const_32_fract)
vld1.8 {d17},[r10] @(vii)ref_main_idx_1
vmull.u8 q7,d12,d28 @(vi)vmull_u8(ref_main_idx, dup_const_32_fract)
add r12,r8,r9 @(viii)*pu1_ref[ref_main_idx]
vmlal.u8 q7,d13,d29 @(vi)vmull_u8(ref_main_idx_1, dup_const_fract)
subs r4,r4,#8
vst1.8 {d22},[r0],r3 @(iv)
vrshrn.i16 d10,q5,#5 @(v)shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d20},[r12],r11 @(viii)ref_main_idx
vsub.u8 d26,d1,d27 @(vii)32-fract(dup_const_32_fract)
vld1.8 {d21},[r12] @(viii)ref_main_idx_1
vmull.u8 q9,d16,d26 @(vii)vmull_u8(ref_main_idx, dup_const_32_fract)
addgt r8,r8,#8
vmlal.u8 q9,d17,d27 @(vii)vmull_u8(ref_main_idx_1, dup_const_fract)
subgt r7,r7,#8
vst1.8 {d10},[r0],r3 @(v)
vrshrn.i16 d14,q7,#5 @(vi)shift_res = vrshrn_n_u16(add_res, 5)
beq epilogue
vld1.8 {d5},[r6] @loads the row value
vmull.s8 q1,d5,d0 @pos = ((row + 1) * intra_pred_ang)
vand q2,q1,q3 @dup_const_fract(fract = pos & (31))
vmovn.i16 d4,q2
vshrn.s16 d3,q1,#5 @idx = pos >> 5
vmov.u32 lr,d3[0] @(i)extract idx to the r register
sbfx r9,lr,#0,#8
add r10,r8,r9 @(i)*pu1_ref[ref_main_idx]
kernel_8_rows:
vdup.8 d31,d4[0]
subs r4,r4,#8
sbfx r9,lr,#8,#8
vld1.8 {d8},[r10],r11 @(i)ref_main_idx
vsub.u8 d24,d1,d25 @(viii)32-fract(dup_const_32_fract)
addle r6,r6,#8 @increment the row value
add r12,r8,r9 @(ii)*pu1_ref[ref_main_idx]
vld1.8 {d9},[r10] @(i)ref_main_idx_1
vmull.u8 q11,d20,d24 @(viii)vmull_u8(ref_main_idx, dup_const_32_fract)
vld1.8 {d5},[r6] @loads the row value
vmlal.u8 q11,d21,d25 @(viii)vmull_u8(ref_main_idx_1, dup_const_fract)
vdup.8 d29,d4[1] @(ii)
vrshrn.i16 d18,q9,#5 @(vii)shift_res = vrshrn_n_u16(add_res, 5)
sbfx r9,lr,#16,#8
vst1.8 {d14},[r0],r3 @(vi)
vsub.u8 d30,d1,d31 @(i)32-fract(dup_const_32_fract)
add r10,r8,r9 @(iii)*pu1_ref[ref_main_idx]
vld1.8 {d12},[r12],r11 @(ii)ref_main_idx
vmull.u8 q5,d8,d30 @(i)vmull_u8(ref_main_idx, dup_const_32_fract)
vld1.8 {d13},[r12] @(ii)ref_main_idx_1
vmlal.u8 q5,d9,d31 @(i)vmull_u8(ref_main_idx_1, dup_const_fract)
sbfx r9,lr,#24,#8
movle r4,r5 @reload nt
vmov.u32 lr,d3[1] @extract idx to the r register
vrshrn.i16 d22,q11,#5 @(viii)shift_res = vrshrn_n_u16(add_res, 5)
vdup.8 d27,d4[2] @(iii)
vsub.u8 d28,d1,d29 @(ii)32-fract(dup_const_32_fract)
add r12,r8,r9 @(iv)*pu1_ref[ref_main_idx]
vld1.8 {d16},[r10],r11 @(iii)ref_main_idx
vmull.u8 q7,d12,d28 @(ii)vmull_u8(ref_main_idx, dup_const_32_fract)
vst1.8 {d18},[r0],r3 @(vii)
vmlal.u8 q7,d13,d29 @(ii)vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.8 {d17},[r10] @(iii)ref_main_idx_1
vrshrn.i16 d10,q5,#5 @(i)shift_res = vrshrn_n_u16(add_res, 5)
vdup.8 d25,d4[3] @(iv)
vmull.s8 q1,d5,d0 @pos = ((row + 1) * intra_pred_ang)
vst1.8 {d22},[r0] @(viii)
vsub.u8 d26,d1,d27 @(iii)32-fract(dup_const_32_fract)
vld1.8 {d20},[r12],r11 @(iv)ref_main_idx
vmull.u8 q9,d16,d26 @(iii)vmull_u8(ref_main_idx, dup_const_32_fract)
vld1.8 {d21},[r12] @(iv)ref_main_idx_1
vmlal.u8 q9,d17,d27 @(iii)vmull_u8(ref_main_idx_1, dup_const_fract)
sbfx r9,lr,#0,#8
add r0,r2,r3
vdup.8 d31,d4[4] @(v)
vrshrn.i16 d14,q7,#5 @(ii)shift_res = vrshrn_n_u16(add_res, 5)
add r10,r8,r9 @(v)*pu1_ref[ref_main_idx]
sbfx r9,lr,#8,#8
vst1.8 {d10},[r2]! @(i)
vsub.u8 d24,d1,d25 @(iv)32-fract(dup_const_32_fract)
vdup.8 d29,d4[5] @(vi)
vmull.u8 q11,d20,d24 @(iv)vmull_u8(ref_main_idx, dup_const_32_fract)
vdup.8 d27,d4[6] @(vii)
vmlal.u8 q11,d21,d25 @(iv)vmull_u8(ref_main_idx_1, dup_const_fract)
add r12,r8,r9 @(vi)*pu1_ref[ref_main_idx]
sbfx r9,lr,#16,#8
vdup.8 d25,d4[7] @(viii)
vrshrn.i16 d18,q9,#5 @(iii)shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d8},[r10],r11 @(v)ref_main_idx
vand q2,q1,q3 @dup_const_fract(fract = pos & (31))
vld1.8 {d9},[r10] @(v)ref_main_idx_1
vshrn.s16 d3,q1,#5 @idx = pos >> 5
vst1.8 {d14},[r0],r3 @(ii)
vrshrn.i16 d22,q11,#5 @(iv)shift_res = vrshrn_n_u16(add_res, 5)
add r10,r8,r9 @(vii)*pu1_ref[ref_main_idx]
sbfx r9,lr,#24,#8
vld1.8 {d12},[r12],r11 @(vi)ref_main_idx
vsub.u8 d30,d1,d31 @(v)32-fract(dup_const_32_fract)
vld1.8 {d13},[r12] @(vi)ref_main_idx_1
vmull.u8 q5,d8,d30 @(v)vmull_u8(ref_main_idx, dup_const_32_fract)
vmov.u32 lr,d3[0] @(i)extract idx to the r register
vmlal.u8 q5,d9,d31 @(v)vmull_u8(ref_main_idx_1, dup_const_fract)
add r12,r8,r9 @(viii)*pu1_ref[ref_main_idx]
movle r8,r1 @reload the source to pu1_src+2nt
vld1.8 {d16},[r10],r11 @(vii)ref_main_idx
vsub.u8 d28,d1,d29 @(vi)32-fract(dup_const_32_fract)
vst1.8 {d18},[r0],r3 @(iii)
vmull.u8 q7,d12,d28 @(vi)vmull_u8(ref_main_idx, dup_const_32_fract)
vld1.8 {d17},[r10] @(vii)ref_main_idx_1
vmlal.u8 q7,d13,d29 @(vi)vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.8 {d20},[r12],r11 @(viii)ref_main_idx
vrshrn.i16 d10,q5,#5 @(v)shift_res = vrshrn_n_u16(add_res, 5)
vld1.8 {d21},[r12] @(viii)ref_main_idx_1
vsub.u8 d26,d1,d27 @(vii)32-fract(dup_const_32_fract)
addgt r8,r8,#8 @increment the source next set 8 columns in same row
lslle r12,r3,#3
suble r12,r12,r5
vst1.8 {d22},[r0],r3 @(iv)
vmull.u8 q9,d16,d26 @(vii)vmull_u8(ref_main_idx, dup_const_32_fract)
vst1.8 {d10},[r0],r3 @(v)
vmlal.u8 q9,d17,d27 @(vii)vmull_u8(ref_main_idx_1, dup_const_fract)
addle r2,r2,r12 @increment the dst pointer to 8*dst_strd - nt
sbfx r9,lr,#0,#8
vmovn.i16 d4,q2
vrshrn.i16 d14,q7,#5 @(vi)shift_res = vrshrn_n_u16(add_res, 5)
subs r7,r7,#8
add r10,r8,r9 @(i)*pu1_ref[ref_main_idx]
bne kernel_8_rows
epilogue:
vst1.8 {d14},[r0],r3 @(vi)
vrshrn.i16 d18,q9,#5 @(vii)shift_res = vrshrn_n_u16(add_res, 5)
vsub.u8 d24,d1,d25 @(viii)32-fract(dup_const_32_fract)
vmull.u8 q11,d20,d24 @(viii)vmull_u8(ref_main_idx, dup_const_32_fract)
vmlal.u8 q11,d21,d25 @(viii)vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.8 {d18},[r0],r3 @(vii)
vrshrn.i16 d22,q11,#5 @(viii)shift_res = vrshrn_n_u16(add_res, 5)
vst1.8 {d22},[r0],r3 @(viii)
b end_loops
core_loop_4:
add r6,r8,#1 @pu1_ref_main_idx += 1
mov r8,#0
add r5,r8,#1 @row + 1
mul r5,r5,r9 @pos = ((row + 1) * intra_pred_ang)
mov lr,r5,asr #5 @if(fract_prev > fract)
and r5,r5,#31 @fract = pos & (31)
add r10,r6,lr @pu1_ref_main_idx += 1
add r11,r10,#1 @pu1_ref_main_idx_1 += 1
vdup.8 d0,r5 @dup_const_fract
rsb r4,r5,#32
vdup.8 d1,r4 @dup_const_32_fract
@inner_loop_4
vld1.32 {d2[0]},[r10] @ref_main_idx
add r8,r8,#1
@ mov lr,r5 @fract_prev = fract
vld1.32 {d3[0]},[r11] @ref_main_idx_1
add r5,r8,#1 @row + 1
mul r5,r5,r9 @pos = ((row + 1) * intra_pred_ang)
mov lr,r5,asr #5 @ pos >> 5
and r5,r5,#31 @fract = pos & (31)
add r10,r6,lr @pu1_ref_main_idx += 1
add r11,r10,#1 @pu1_ref_main_idx_1 += 1
vdup.8 d6,r5 @dup_const_fract
vmull.u8 q2,d2,d1 @vmull_u8(ref_main_idx, dup_const_32_fract)
rsb r4,r5,#32
vdup.8 d7,r4 @dup_const_32_fract
vmlal.u8 q2,d3,d0 @vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.32 {d8[0]},[r10] @ref_main_idx
add r8,r8,#1
vld1.32 {d9[0]},[r11] @ref_main_idx_1
vrshrn.i16 d4,q2,#5 @shift_res = vrshrn_n_u16(add_res, 5)
@ mov lr,r5 @fract_prev = fract
add r5,r8,#1 @row + 1
mul r5,r5,r9 @pos = ((row + 1) * intra_pred_ang)
mov lr,r5,asr #5 @if(fract_prev > fract)
and r5,r5,#31 @fract = pos & (31)
add r10,r6,lr @ref_main + idx
add r11,r10,#1 @pu1_ref_main_idx_1 += 1
vdup.8 d12,r5 @dup_const_fract
vmull.u8 q5,d8,d7 @vmull_u8(ref_main_idx, dup_const_32_fract)
rsb r4,r5,#32
vdup.8 d13,r4 @dup_const_32_fract
vmlal.u8 q5,d9,d6 @vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.32 {d14[0]},[r10] @ref_main_idx
add r8,r8,#1
vst1.32 {d4[0]},[r2],r3
vrshrn.i16 d10,q5,#5 @shift_res = vrshrn_n_u16(add_res, 5)
vld1.32 {d15[0]},[r11] @ref_main_idx_1
@ mov lr,r5 @fract_prev = fract
add r5,r8,#1 @row + 1
mul r5,r5,r9 @pos = ((row + 1) * intra_pred_ang)
mov lr,r5,asr #5 @if(fract_prev > fract)
and r5,r5,#31 @fract = pos & (31)
add r10,r6,lr @pu1_ref_main_idx += 1
add r11,r10,#1 @pu1_ref_main_idx_1 += 1
vdup.8 d18,r5 @dup_const_fract
vmull.u8 q8,d14,d13 @vmull_u8(ref_main_idx, dup_const_32_fract)
rsb r4,r5,#32
vdup.8 d19,r4 @dup_const_32_fract
vmlal.u8 q8,d15,d12 @vmull_u8(ref_main_idx_1, dup_const_fract)
vld1.32 {d20[0]},[r10] @ref_main_idx
vst1.32 {d10[0]},[r2],r3
vrshrn.i16 d16,q8,#5 @shift_res = vrshrn_n_u16(add_res, 5)
vld1.32 {d21[0]},[r11] @ref_main_idx_1
vmull.u8 q11,d20,d19 @vmull_u8(ref_main_idx, dup_const_32_fract)
vmlal.u8 q11,d21,d18 @vmull_u8(ref_main_idx_1, dup_const_fract)
vst1.32 {d16[0]},[r2],r3
vrshrn.i16 d22,q11,#5 @shift_res = vrshrn_n_u16(add_res, 5)
vst1.32 {d22[0]},[r2],r3
end_loops:
add sp, sp, #132
vpop {d8 - d15}
ldmfd sp!,{r4-r12,r15} @reload the registers from sp
|