av-scenechange 0.4.1

Estimates frames in a video where a scenecut would be ideal
Documentation
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
; Copyright © 2018, VideoLAN and dav1d authors
; Copyright © 2018, Two Orioles, LLC
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions are met:
;
; 1. Redistributions of source code must retain the above copyright notice, this
;    list of conditions and the following disclaimer.
;
; 2. Redistributions in binary form must reproduce the above copyright notice,
;    this list of conditions and the following disclaimer in the documentation
;    and/or other materials provided with the distribution.
;
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
; ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

%include "ext/x86/x86inc.asm"

%if ARCH_X86_64

SECTION_RODATA 32

; dav1d_obmc_masks[] with 64-x interleaved
obmc_masks: db  0,  0,  0,  0
            ; 2
            db 45, 19, 64,  0
            ; 4
            db 39, 25, 50, 14, 59,  5, 64,  0
            ; 8
            db 36, 28, 42, 22, 48, 16, 53, 11, 57,  7, 61,  3, 64,  0, 64,  0
            ; 16
            db 34, 30, 37, 27, 40, 24, 43, 21, 46, 18, 49, 15, 52, 12, 54, 10
            db 56,  8, 58,  6, 60,  4, 61,  3, 64,  0, 64,  0, 64,  0, 64,  0
            ; 32
            db 33, 31, 35, 29, 36, 28, 38, 26, 40, 24, 41, 23, 43, 21, 44, 20
            db 45, 19, 47, 17, 48, 16, 50, 14, 51, 13, 52, 12, 53, 11, 55,  9
            db 56,  8, 57,  7, 58,  6, 59,  5, 60,  4, 60,  4, 61,  3, 62,  2
            db 64,  0, 64,  0, 64,  0, 64,  0, 64,  0, 64,  0, 64,  0, 64,  0

warp_8x8_shufA: db 0,  2,  4,  6,  1,  3,  5,  7,  1,  3,  5,  7,  2,  4,  6,  8
                db 4,  6,  8, 10,  5,  7,  9, 11,  5,  7,  9, 11,  6,  8, 10, 12
warp_8x8_shufB: db 2,  4,  6,  8,  3,  5,  7,  9,  3,  5,  7,  9,  4,  6,  8, 10
                db 6,  8, 10, 12,  7,  9, 11, 13,  7,  9, 11, 13,  8, 10, 12, 14
subpel_h_shuf4: db 0,  1,  2,  3,  1,  2,  3,  4,  8,  9, 10, 11,  9, 10, 11, 12
                db 2,  3,  4,  5,  3,  4,  5,  6, 10, 11, 12, 13, 11, 12, 13, 14
subpel_h_shufA: db 0,  1,  2,  3,  1,  2,  3,  4,  2,  3,  4,  5,  3,  4,  5,  6
subpel_h_shufB: db 4,  5,  6,  7,  5,  6,  7,  8,  6,  7,  8,  9,  7,  8,  9, 10
subpel_h_shufC: db 8,  9, 10, 11,  9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14
bilin_h_shuf4:  db 1,  0,  2,  1,  3,  2,  4,  3,  9,  8, 10,  9, 11, 10, 12, 11
bilin_h_shuf8:  db 1,  0,  2,  1,  3,  2,  4,  3,  5,  4,  6,  5,  7,  6,  8,  7
deint_shuf4:    db 0,  4,  1,  5,  2,  6,  3,  7,  4,  8,  5,  9,  6, 10,  7, 11
blend_shuf:     db 0,  1,  0,  1,  0,  1,  0,  1,  2,  3,  2,  3,  2,  3,  2,  3

pb_64:   times 4 db 64
pw_34:   times 2 dw 34
pw_258:  times 2 dw 258
pw_512:  times 2 dw 512
pw_1024: times 2 dw 1024
pw_2048: times 2 dw 2048
pw_6903: times 2 dw 6903
pw_8192: times 2 dw 8192
pd_32:    dd 32
pd_512:   dd 512
pd_32768: dd 32768

cextern mc_subpel_filters
%define subpel_filters (mangle(private_prefix %+ _mc_subpel_filters)-8)

%macro BIDIR_JMP_TABLE 1-*
    %xdefine %1_table (%%table - 2*%2)
    %xdefine %%base %1_table
    %xdefine %%prefix mangle(private_prefix %+ _%1)
    %%table:
    %rep %0 - 1
        dd %%prefix %+ .w%2 - %%base
        %rotate 1
    %endrep
%endmacro

BIDIR_JMP_TABLE avg_avx2,        4, 8, 16, 32, 64, 128
BIDIR_JMP_TABLE w_avg_avx2,      4, 8, 16, 32, 64, 128
BIDIR_JMP_TABLE mask_avx2,       4, 8, 16, 32, 64, 128
BIDIR_JMP_TABLE w_mask_420_avx2, 4, 8, 16, 32, 64, 128
BIDIR_JMP_TABLE w_mask_422_avx2, 4, 8, 16, 32, 64, 128
BIDIR_JMP_TABLE w_mask_444_avx2, 4, 8, 16, 32, 64, 128
BIDIR_JMP_TABLE blend_avx2,      4, 8, 16, 32
BIDIR_JMP_TABLE blend_v_avx2, 2, 4, 8, 16, 32
BIDIR_JMP_TABLE blend_h_avx2, 2, 4, 8, 16, 32, 32, 32

%macro BASE_JMP_TABLE 3-*
    %xdefine %1_%2_table (%%table - %3)
    %xdefine %%base %1_%2
    %%table:
    %rep %0 - 2
        dw %%base %+ _w%3 - %%base
        %rotate 1
    %endrep
%endmacro

%xdefine put_avx2 mangle(private_prefix %+ _put_bilin_avx2.put)
%xdefine prep_avx2 mangle(private_prefix %+ _prep_bilin_avx2.prep)

BASE_JMP_TABLE put,  avx2, 2, 4, 8, 16, 32, 64, 128
BASE_JMP_TABLE prep, avx2,    4, 8, 16, 32, 64, 128

%macro HV_JMP_TABLE 5-*
    %xdefine %%prefix mangle(private_prefix %+ _%1_%2_%3)
    %xdefine %%base %1_%3
    %assign %%types %4
    %if %%types & 1
        %xdefine %1_%2_h_%3_table  (%%h  - %5)
        %%h:
        %rep %0 - 4
            dw %%prefix %+ .h_w%5 - %%base
            %rotate 1
        %endrep
        %rotate 4
    %endif
    %if %%types & 2
        %xdefine %1_%2_v_%3_table  (%%v  - %5)
        %%v:
        %rep %0 - 4
            dw %%prefix %+ .v_w%5 - %%base
            %rotate 1
        %endrep
        %rotate 4
    %endif
    %if %%types & 4
        %xdefine %1_%2_hv_%3_table (%%hv - %5)
        %%hv:
        %rep %0 - 4
            dw %%prefix %+ .hv_w%5 - %%base
            %rotate 1
        %endrep
    %endif
%endmacro

HV_JMP_TABLE put,  8tap,  avx2, 3, 2, 4, 8, 16, 32, 64, 128
HV_JMP_TABLE prep, 8tap,  avx2, 1,    4, 8, 16, 32, 64, 128
HV_JMP_TABLE put,  bilin, avx2, 7, 2, 4, 8, 16, 32, 64, 128
HV_JMP_TABLE prep, bilin, avx2, 7,    4, 8, 16, 32, 64, 128

%define table_offset(type, fn) type %+ fn %+ SUFFIX %+ _table - type %+ SUFFIX

cextern mc_warp_filter

SECTION .text

INIT_XMM avx2
DECLARE_REG_TMP 4, 6, 7
cglobal put_bilin, 4, 8, 0, dst, ds, src, ss, w, h, mxy
    movifnidn          mxyd, r6m ; mx
    lea                  t2, [put_avx2]
    tzcnt                wd, wm
    movifnidn            hd, hm
    test               mxyd, mxyd
    jnz .h
    mov                mxyd, r7m ; my
    test               mxyd, mxyd
    jnz .v
.put:
    movzx                wd, word [t2+wq*2+table_offset(put,)]
    add                  wq, t2
    jmp                  wq
.put_w2:
    movzx               t0d, word [srcq+ssq*0]
    movzx               t1d, word [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    mov        [dstq+dsq*0], t0w
    mov        [dstq+dsq*1], t1w
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .put_w2
    RET
.put_w4:
    mov                 t0d, [srcq+ssq*0]
    mov                 t1d, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    mov        [dstq+dsq*0], t0d
    mov        [dstq+dsq*1], t1d
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .put_w4
    RET
.put_w8:
    mov                  t0, [srcq+ssq*0]
    mov                  t1, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    mov        [dstq+dsq*0], t0
    mov        [dstq+dsq*1], t1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .put_w8
    RET
.put_w16:
    movu                 m0, [srcq+ssq*0]
    movu                 m1, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    mova       [dstq+dsq*0], m0
    mova       [dstq+dsq*1], m1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .put_w16
    RET
INIT_YMM avx2
.put_w32:
    movu                 m0, [srcq+ssq*0]
    movu                 m1, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    mova       [dstq+dsq*0], m0
    mova       [dstq+dsq*1], m1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .put_w32
    RET
.put_w64:
    movu                 m0, [srcq+ssq*0+32*0]
    movu                 m1, [srcq+ssq*0+32*1]
    movu                 m2, [srcq+ssq*1+32*0]
    movu                 m3, [srcq+ssq*1+32*1]
    lea                srcq, [srcq+ssq*2]
    mova  [dstq+dsq*0+32*0], m0
    mova  [dstq+dsq*0+32*1], m1
    mova  [dstq+dsq*1+32*0], m2
    mova  [dstq+dsq*1+32*1], m3
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .put_w64
    RET
.put_w128:
    movu                 m0, [srcq+32*0]
    movu                 m1, [srcq+32*1]
    movu                 m2, [srcq+32*2]
    movu                 m3, [srcq+32*3]
    add                srcq, ssq
    mova        [dstq+32*0], m0
    mova        [dstq+32*1], m1
    mova        [dstq+32*2], m2
    mova        [dstq+32*3], m3
    add                dstq, dsq
    dec                  hd
    jg .put_w128
    RET
.h:
    ; (16 * src[x] + (mx * (src[x + 1] - src[x])) + 8) >> 4
    ; = ((16 - mx) * src[x] + mx * src[x + 1] + 8) >> 4
    imul               mxyd, 0xff01
    vbroadcasti128       m4, [bilin_h_shuf8]
    add                mxyd, 16 << 8
    movd                xm5, mxyd
    mov                mxyd, r7m ; my
    vpbroadcastw         m5, xm5
    test               mxyd, mxyd
    jnz .hv
    movzx                wd, word [t2+wq*2+table_offset(put, _bilin_h)]
    vpbroadcastd         m3, [pw_2048]
    add                  wq, t2
    jmp                  wq
.h_w2:
    movd                xm0, [srcq+ssq*0]
    pinsrd              xm0, [srcq+ssq*1], 1
    lea                srcq, [srcq+ssq*2]
    pshufb              xm0, xm4
    pmaddubsw           xm0, xm5
    pmulhrsw            xm0, xm3
    packuswb            xm0, xm0
    pextrw     [dstq+dsq*0], xm0, 0
    pextrw     [dstq+dsq*1], xm0, 2
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .h_w2
    RET
.h_w4:
    mova                xm4, [bilin_h_shuf4]
.h_w4_loop:
    movq                xm0, [srcq+ssq*0]
    movhps              xm0, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    pshufb              xm0, xm4
    pmaddubsw           xm0, xm5
    pmulhrsw            xm0, xm3
    packuswb            xm0, xm0
    movd       [dstq+dsq*0], xm0
    pextrd     [dstq+dsq*1], xm0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .h_w4_loop
    RET
.h_w8:
    movu                xm0, [srcq+ssq*0]
    movu                xm1, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    pshufb              xm0, xm4
    pshufb              xm1, xm4
    pmaddubsw           xm0, xm5
    pmaddubsw           xm1, xm5
    pmulhrsw            xm0, xm3
    pmulhrsw            xm1, xm3
    packuswb            xm0, xm1
    movq       [dstq+dsq*0], xm0
    movhps     [dstq+dsq*1], xm0
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .h_w8
    RET
.h_w16:
    movu                xm0,     [srcq+ssq*0+8*0]
    vinserti128          m0, m0, [srcq+ssq*1+8*0], 1
    movu                xm1,     [srcq+ssq*0+8*1]
    vinserti128          m1, m1, [srcq+ssq*1+8*1], 1
    lea                srcq,     [srcq+ssq*2]
    pshufb               m0, m4
    pshufb               m1, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmulhrsw             m0, m3
    pmulhrsw             m1, m3
    packuswb             m0, m1
    mova         [dstq+dsq*0], xm0
    vextracti128 [dstq+dsq*1], m0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .h_w16
    RET
.h_w32:
    movu                 m0, [srcq+8*0]
    movu                 m1, [srcq+8*1]
    add                srcq, ssq
    pshufb               m0, m4
    pshufb               m1, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmulhrsw             m0, m3
    pmulhrsw             m1, m3
    packuswb             m0, m1
    mova             [dstq], m0
    add                dstq, dsq
    dec                  hd
    jg .h_w32
    RET
.h_w64:
    movu                 m0, [srcq+8*0]
    movu                 m1, [srcq+8*1]
    pshufb               m0, m4
    pshufb               m1, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmulhrsw             m0, m3
    pmulhrsw             m1, m3
    packuswb             m0, m1
    movu                 m1, [srcq+8*4]
    movu                 m2, [srcq+8*5]
    add                srcq, ssq
    pshufb               m1, m4
    pshufb               m2, m4
    pmaddubsw            m1, m5
    pmaddubsw            m2, m5
    pmulhrsw             m1, m3
    pmulhrsw             m2, m3
    packuswb             m1, m2
    mova        [dstq+32*0], m0
    mova        [dstq+32*1], m1
    add                dstq, dsq
    dec                  hd
    jg .h_w64
    RET
.h_w128:
    mov                  t1, -32*3
.h_w128_loop:
    movu                 m0, [srcq+t1+32*3+8*0]
    movu                 m1, [srcq+t1+32*3+8*1]
    pshufb               m0, m4
    pshufb               m1, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmulhrsw             m0, m3
    pmulhrsw             m1, m3
    packuswb             m0, m1
    mova     [dstq+t1+32*3], m0
    add                  t1, 32
    jle .h_w128_loop
    add                srcq, ssq
    add                dstq, dsq
    dec                  hd
    jg .h_w128
    RET
.v:
    movzx                wd, word [t2+wq*2+table_offset(put, _bilin_v)]
    imul               mxyd, 0xff01
    vpbroadcastd         m5, [pw_2048]
    add                mxyd, 16 << 8
    add                  wq, t2
    movd                xm4, mxyd
    vpbroadcastw         m4, xm4
    jmp                  wq
.v_w2:
    movd                xm0,      [srcq+ssq*0]
.v_w2_loop:
    pinsrw              xm1, xm0, [srcq+ssq*1], 1 ; 0 1
    lea                srcq,      [srcq+ssq*2]
    pinsrw              xm0, xm1, [srcq+ssq*0], 0 ; 2 1
    pshuflw             xm1, xm1, q2301           ; 1 0
    punpcklbw           xm1, xm0, xm1
    pmaddubsw           xm1, xm4
    pmulhrsw            xm1, xm5
    packuswb            xm1, xm1
    pextrw     [dstq+dsq*0], xm1, 1
    pextrw     [dstq+dsq*1], xm1, 0
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .v_w2_loop
    RET
.v_w4:
    movd                xm0, [srcq+ssq*0]
.v_w4_loop:
    vpbroadcastd        xm1, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vpblendd            xm2, xm1, xm0, 0x01 ; 0 1
    vpbroadcastd        xm0, [srcq+ssq*0]
    vpblendd            xm1, xm1, xm0, 0x02 ; 1 2
    punpcklbw           xm1, xm2
    pmaddubsw           xm1, xm4
    pmulhrsw            xm1, xm5
    packuswb            xm1, xm1
    movd       [dstq+dsq*0], xm1
    pextrd     [dstq+dsq*1], xm1, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .v_w4_loop
    RET
.v_w8:
    movq                xm0, [srcq+ssq*0]
.v_w8_loop:
    movq                xm3, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    punpcklbw           xm1, xm3, xm0
    movq                xm0, [srcq+ssq*0]
    punpcklbw           xm2, xm0, xm3
    pmaddubsw           xm1, xm4
    pmaddubsw           xm2, xm4
    pmulhrsw            xm1, xm5
    pmulhrsw            xm2, xm5
    packuswb            xm1, xm2
    movq       [dstq+dsq*0], xm1
    movhps     [dstq+dsq*1], xm1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .v_w8_loop
    RET
.v_w16:
    movu                xm0, [srcq+ssq*0]
.v_w16_loop:
    vbroadcasti128       m2, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vpblendd             m3, m2, m0, 0x0f ; 0 1
    vbroadcasti128       m0, [srcq+ssq*0]
    vpblendd             m2, m2, m0, 0xf0 ; 1 2
    punpcklbw            m1, m2, m3
    punpckhbw            m2, m3
    pmaddubsw            m1, m4
    pmaddubsw            m2, m4
    pmulhrsw             m1, m5
    pmulhrsw             m2, m5
    packuswb             m1, m2
    mova         [dstq+dsq*0], xm1
    vextracti128 [dstq+dsq*1], m1, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .v_w16_loop
    RET
.v_w32:
%macro PUT_BILIN_V_W32 0
    movu                 m0, [srcq+ssq*0]
%%loop:
    movu                 m3, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    punpcklbw            m1, m3, m0
    punpckhbw            m2, m3, m0
    movu                 m0, [srcq+ssq*0]
    pmaddubsw            m1, m4
    pmaddubsw            m2, m4
    pmulhrsw             m1, m5
    pmulhrsw             m2, m5
    packuswb             m1, m2
    mova       [dstq+dsq*0], m1
    punpcklbw            m1, m0, m3
    punpckhbw            m2, m0, m3
    pmaddubsw            m1, m4
    pmaddubsw            m2, m4
    pmulhrsw             m1, m5
    pmulhrsw             m2, m5
    packuswb             m1, m2
    mova       [dstq+dsq*1], m1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg %%loop
%endmacro
    PUT_BILIN_V_W32
    RET
.v_w64:
    movu                 m0, [srcq+32*0]
    movu                 m1, [srcq+32*1]
.v_w64_loop:
    add                srcq, ssq
    movu                 m3, [srcq+32*0]
    punpcklbw            m2, m3, m0
    punpckhbw            m0, m3, m0
    pmaddubsw            m2, m4
    pmaddubsw            m0, m4
    pmulhrsw             m2, m5
    pmulhrsw             m0, m5
    packuswb             m2, m0
    mova                 m0, m3
    movu                 m3, [srcq+32*1]
    mova        [dstq+32*0], m2
    punpcklbw            m2, m3, m1
    punpckhbw            m1, m3, m1
    pmaddubsw            m2, m4
    pmaddubsw            m1, m4
    pmulhrsw             m2, m5
    pmulhrsw             m1, m5
    packuswb             m2, m1
    mova                 m1, m3
    mova        [dstq+32*1], m2
    add                dstq, dsq
    dec                  hd
    jg .v_w64_loop
    RET
.v_w128:
    mov                  t0, dstq
    mov                  t1, srcq
    lea                 t2d, [hq+(3<<8)]
.v_w128_loop:
    PUT_BILIN_V_W32
    mov                  hb, t2b
    add                  t0, 32
    add                  t1, 32
    mov                dstq, t0
    mov                srcq, t1
    sub                 t2d, 1<<8
    jg .v_w128_loop
    RET
.hv:
    ; (16 * src[x] + (my * (src[x + src_stride] - src[x])) + 128) >> 8
    ; = (src[x] + ((my * (src[x + src_stride] - src[x])) >> 4) + 8) >> 4
    movzx                wd, word [t2+wq*2+table_offset(put, _bilin_hv)]
    WIN64_SPILL_XMM       8
    shl                mxyd, 11 ; can't shift by 12 due to signed overflow
    vpbroadcastd         m7, [pw_2048]
    movd                xm6, mxyd
    add                  wq, t2
    vpbroadcastw         m6, xm6
    jmp                  wq
.hv_w2:
    vpbroadcastd        xm0, [srcq+ssq*0]
    pshufb              xm0, xm4
    pmaddubsw           xm0, xm5
.hv_w2_loop:
    movd                xm1, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    pinsrd              xm1, [srcq+ssq*0], 1
    pshufb              xm1, xm4
    pmaddubsw           xm1, xm5             ; 1 _ 2 _
    shufps              xm2, xm0, xm1, q1032 ; 0 _ 1 _
    mova                xm0, xm1
    psubw               xm1, xm2
    paddw               xm1, xm1
    pmulhw              xm1, xm6
    paddw               xm1, xm2
    pmulhrsw            xm1, xm7
    packuswb            xm1, xm1
    pextrw     [dstq+dsq*0], xm1, 0
    pextrw     [dstq+dsq*1], xm1, 2
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .hv_w2_loop
    RET
.hv_w4:
    mova                xm4, [bilin_h_shuf4]
    movddup             xm0, [srcq+ssq*0]
    pshufb              xm0, xm4
    pmaddubsw           xm0, xm5
.hv_w4_loop:
    movq                xm1, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    movhps              xm1, [srcq+ssq*0]
    pshufb              xm1, xm4
    pmaddubsw           xm1, xm5             ; 1 2
    shufps              xm2, xm0, xm1, q1032 ; 0 1
    mova                xm0, xm1
    psubw               xm1, xm2
    paddw               xm1, xm1
    pmulhw              xm1, xm6
    paddw               xm1, xm2
    pmulhrsw            xm1, xm7
    packuswb            xm1, xm1
    movd       [dstq+dsq*0], xm1
    pextrd     [dstq+dsq*1], xm1, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .hv_w4_loop
    RET
.hv_w8:
    vbroadcasti128       m0,     [srcq+ssq*0]
    pshufb               m0, m4
    pmaddubsw            m0, m5
.hv_w8_loop:
    movu                xm1,     [srcq+ssq*1]
    lea                srcq,     [srcq+ssq*2]
    vinserti128          m1, m1, [srcq+ssq*0], 1
    pshufb               m1, m4
    pmaddubsw            m1, m5           ; 1 2
    vperm2i128           m2, m0, m1, 0x21 ; 0 1
    mova                 m0, m1
    psubw                m1, m2
    paddw                m1, m1
    pmulhw               m1, m6
    paddw                m1, m2
    pmulhrsw             m1, m7
    vextracti128        xm2, m1, 1
    packuswb            xm1, xm2
    movq       [dstq+dsq*0], xm1
    movhps     [dstq+dsq*1], xm1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .hv_w8_loop
    RET
.hv_w16:
    movu                 m0,     [srcq+ssq*0+8*0]
    vinserti128          m0, m0, [srcq+ssq*0+8*1], 1
    pshufb               m0, m4
    pmaddubsw            m0, m5
.hv_w16_loop:
    movu                xm2,     [srcq+ssq*1+8*0]
    vinserti128          m2, m2, [srcq+ssq*1+8*1], 1
    lea                srcq,     [srcq+ssq*2]
    movu                xm3,     [srcq+ssq*0+8*0]
    vinserti128          m3, m3, [srcq+ssq*0+8*1], 1
    pshufb               m2, m4
    pshufb               m3, m4
    pmaddubsw            m2, m5
    psubw                m1, m2, m0
    paddw                m1, m1
    pmulhw               m1, m6
    paddw                m1, m0
    pmaddubsw            m0, m3, m5
    psubw                m3, m0, m2
    paddw                m3, m3
    pmulhw               m3, m6
    paddw                m3, m2
    pmulhrsw             m1, m7
    pmulhrsw             m3, m7
    packuswb             m1, m3
    vpermq               m1, m1, q3120
    mova         [dstq+dsq*0], xm1
    vextracti128 [dstq+dsq*1], m1, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .hv_w16_loop
    RET
.hv_w32:
    xor                 t2d, t2d
.hv_w32gt:
    mov                  t0, dstq
    mov                  t1, srcq
%if WIN64
    movaps              r4m, xmm8
%endif
.hv_w32_loop0:
    movu                 m0,     [srcq+8*0]
    vinserti128          m0, m0, [srcq+8*2], 1
    movu                 m1,     [srcq+8*1]
    vinserti128          m1, m1, [srcq+8*3], 1
    pshufb               m0, m4
    pshufb               m1, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
.hv_w32_loop:
    add                srcq, ssq
    movu                xm2,     [srcq+8*1]
    vinserti128          m2, m2, [srcq+8*3], 1
    pshufb               m2, m4
    pmaddubsw            m2, m5
    psubw                m3, m2, m1
    paddw                m3, m3
    pmulhw               m3, m6
    paddw                m3, m1
    mova                 m1, m2
    pmulhrsw             m8, m3, m7
    movu                xm2,     [srcq+8*0]
    vinserti128          m2, m2, [srcq+8*2], 1
    pshufb               m2, m4
    pmaddubsw            m2, m5
    psubw                m3, m2, m0
    paddw                m3, m3
    pmulhw               m3, m6
    paddw                m3, m0
    mova                 m0, m2
    pmulhrsw             m3, m7
    packuswb             m3, m8
    mova             [dstq], m3
    add                dstq, dsq
    dec                  hd
    jg .hv_w32_loop
    movzx                hd, t2b
    add                  t0, 32
    add                  t1, 32
    mov                dstq, t0
    mov                srcq, t1
    sub                 t2d, 1<<8
    jg .hv_w32_loop0
%if WIN64
    movaps             xmm8, r4m
%endif
    RET
.hv_w64:
    lea                 t2d, [hq+(1<<8)]
    jmp .hv_w32gt
.hv_w128:
    lea                 t2d, [hq+(3<<8)]
    jmp .hv_w32gt

DECLARE_REG_TMP 3, 5, 6
cglobal prep_bilin, 3, 7, 0, tmp, src, stride, w, h, mxy, stride3
    movifnidn          mxyd, r5m ; mx
    lea                  t2, [prep_avx2]
    tzcnt                wd, wm
    movifnidn            hd, hm
    test               mxyd, mxyd
    jnz .h
    mov                mxyd, r6m ; my
    test               mxyd, mxyd
    jnz .v
.prep:
    movzx                wd, word [t2+wq*2+table_offset(prep,)]
    add                  wq, t2
    lea            stride3q, [strideq*3]
    jmp                  wq
.prep_w4:
    movd                xm0, [srcq+strideq*0]
    pinsrd              xm0, [srcq+strideq*1], 1
    pinsrd              xm0, [srcq+strideq*2], 2
    pinsrd              xm0, [srcq+stride3q ], 3
    lea                srcq, [srcq+strideq*4]
    pmovzxbw             m0, xm0
    psllw                m0, 4
    mova             [tmpq], m0
    add                tmpq, 32
    sub                  hd, 4
    jg .prep_w4
    RET
.prep_w8:
    movq                xm0, [srcq+strideq*0]
    movhps              xm0, [srcq+strideq*1]
    movq                xm1, [srcq+strideq*2]
    movhps              xm1, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    pmovzxbw             m0, xm0
    pmovzxbw             m1, xm1
    psllw                m0, 4
    psllw                m1, 4
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    add                tmpq, 32*2
    sub                  hd, 4
    jg .prep_w8
    RET
.prep_w16:
    pmovzxbw             m0, [srcq+strideq*0]
    pmovzxbw             m1, [srcq+strideq*1]
    pmovzxbw             m2, [srcq+strideq*2]
    pmovzxbw             m3, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    psllw                m0, 4
    psllw                m1, 4
    psllw                m2, 4
    psllw                m3, 4
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m3
    add                tmpq, 32*4
    sub                  hd, 4
    jg .prep_w16
    RET
.prep_w32:
    pmovzxbw             m0, [srcq+strideq*0+16*0]
    pmovzxbw             m1, [srcq+strideq*0+16*1]
    pmovzxbw             m2, [srcq+strideq*1+16*0]
    pmovzxbw             m3, [srcq+strideq*1+16*1]
    lea                srcq, [srcq+strideq*2]
    psllw                m0, 4
    psllw                m1, 4
    psllw                m2, 4
    psllw                m3, 4
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m3
    add                tmpq, 32*4
    sub                  hd, 2
    jg .prep_w32
    RET
.prep_w64:
    pmovzxbw             m0, [srcq+16*0]
    pmovzxbw             m1, [srcq+16*1]
    pmovzxbw             m2, [srcq+16*2]
    pmovzxbw             m3, [srcq+16*3]
    add                srcq, strideq
    psllw                m0, 4
    psllw                m1, 4
    psllw                m2, 4
    psllw                m3, 4
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m3
    add                tmpq, 32*4
    dec                  hd
    jg .prep_w64
    RET
.prep_w128:
    pmovzxbw             m0, [srcq+16*0]
    pmovzxbw             m1, [srcq+16*1]
    pmovzxbw             m2, [srcq+16*2]
    pmovzxbw             m3, [srcq+16*3]
    psllw                m0, 4
    psllw                m1, 4
    psllw                m2, 4
    psllw                m3, 4
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m3
    pmovzxbw             m0, [srcq+16*4]
    pmovzxbw             m1, [srcq+16*5]
    pmovzxbw             m2, [srcq+16*6]
    pmovzxbw             m3, [srcq+16*7]
    add                tmpq, 32*8
    add                srcq, strideq
    psllw                m0, 4
    psllw                m1, 4
    psllw                m2, 4
    psllw                m3, 4
    mova        [tmpq-32*4], m0
    mova        [tmpq-32*3], m1
    mova        [tmpq-32*2], m2
    mova        [tmpq-32*1], m3
    dec                  hd
    jg .prep_w128
    RET
.h:
    ; 16 * src[x] + (mx * (src[x + 1] - src[x]))
    ; = (16 - mx) * src[x] + mx * src[x + 1]
    imul               mxyd, 0xff01
    vbroadcasti128       m4, [bilin_h_shuf8]
    add                mxyd, 16 << 8
    movd                xm5, mxyd
    mov                mxyd, r6m ; my
    vpbroadcastw         m5, xm5
    test               mxyd, mxyd
    jnz .hv
    movzx                wd, word [t2+wq*2+table_offset(prep, _bilin_h)]
    add                  wq, t2
    lea            stride3q, [strideq*3]
    jmp                  wq
.h_w4:
    vbroadcasti128       m4, [bilin_h_shuf4]
.h_w4_loop:
    movq                xm0, [srcq+strideq*0]
    movhps              xm0, [srcq+strideq*1]
    movq                xm1, [srcq+strideq*2]
    movhps              xm1, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    vinserti128          m0, m0, xm1, 1
    pshufb               m0, m4
    pmaddubsw            m0, m5
    mova             [tmpq], m0
    add                tmpq, 32
    sub                  hd, 4
    jg .h_w4_loop
    RET
.h_w8:
    movu                xm0,     [srcq+strideq*0]
    vinserti128          m0, m0, [srcq+strideq*1], 1
    movu                xm1,     [srcq+strideq*2]
    vinserti128          m1, m1, [srcq+stride3q ], 1
    lea                srcq,     [srcq+strideq*4]
    pshufb               m0, m4
    pshufb               m1, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    add                tmpq, 32*2
    sub                  hd, 4
    jg .h_w8
    RET
.h_w16:
    movu                xm0,     [srcq+strideq*0+8*0]
    vinserti128          m0, m0, [srcq+strideq*0+8*1], 1
    movu                xm1,     [srcq+strideq*1+8*0]
    vinserti128          m1, m1, [srcq+strideq*1+8*1], 1
    movu                xm2,     [srcq+strideq*2+8*0]
    vinserti128          m2, m2, [srcq+strideq*2+8*1], 1
    movu                xm3,     [srcq+stride3q +8*0]
    vinserti128          m3, m3, [srcq+stride3q +8*1], 1
    lea                srcq,     [srcq+strideq*4]
    pshufb               m0, m4
    pshufb               m1, m4
    pshufb               m2, m4
    pshufb               m3, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmaddubsw            m2, m5
    pmaddubsw            m3, m5
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m3
    add                tmpq, 32*4
    sub                  hd, 4
    jg .h_w16
    RET
.h_w32:
    movu                xm0,     [srcq+strideq*0+8*0]
    vinserti128          m0, m0, [srcq+strideq*0+8*1], 1
    movu                xm1,     [srcq+strideq*0+8*2]
    vinserti128          m1, m1, [srcq+strideq*0+8*3], 1
    movu                xm2,     [srcq+strideq*1+8*0]
    vinserti128          m2, m2, [srcq+strideq*1+8*1], 1
    movu                xm3,     [srcq+strideq*1+8*2]
    vinserti128          m3, m3, [srcq+strideq*1+8*3], 1
    lea                srcq,     [srcq+strideq*2]
    pshufb               m0, m4
    pshufb               m1, m4
    pshufb               m2, m4
    pshufb               m3, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmaddubsw            m2, m5
    pmaddubsw            m3, m5
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m3
    add                tmpq, 32*4
    sub                  hd, 2
    jg .h_w32
    RET
.h_w64:
    movu                xm0,     [srcq+8*0]
    vinserti128          m0, m0, [srcq+8*1], 1
    movu                xm1,     [srcq+8*2]
    vinserti128          m1, m1, [srcq+8*3], 1
    movu                xm2,     [srcq+8*4]
    vinserti128          m2, m2, [srcq+8*5], 1
    movu                xm3,     [srcq+8*6]
    vinserti128          m3, m3, [srcq+8*7], 1
    add                srcq, strideq
    pshufb               m0, m4
    pshufb               m1, m4
    pshufb               m2, m4
    pshufb               m3, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmaddubsw            m2, m5
    pmaddubsw            m3, m5
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m3
    add                tmpq, 32*4
    dec                  hd
    jg .h_w64
    RET
.h_w128:
    movu                xm0,     [srcq+8*0]
    vinserti128          m0, m0, [srcq+8*1], 1
    movu                xm1,     [srcq+8*2]
    vinserti128          m1, m1, [srcq+8*3], 1
    movu                xm2,     [srcq+8*4]
    vinserti128          m2, m2, [srcq+8*5], 1
    movu                xm3,     [srcq+8*6]
    vinserti128          m3, m3, [srcq+8*7], 1
    pshufb               m0, m4
    pshufb               m1, m4
    pshufb               m2, m4
    pshufb               m3, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmaddubsw            m2, m5
    pmaddubsw            m3, m5
    mova        [tmpq+32*0], m0
    mova        [tmpq+32*1], m1
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m3
    movu                xm0,     [srcq+8* 8]
    vinserti128          m0, m0, [srcq+8* 9], 1
    movu                xm1,     [srcq+8*10]
    vinserti128          m1, m1, [srcq+8*11], 1
    movu                xm2,     [srcq+8*12]
    vinserti128          m2, m2, [srcq+8*13], 1
    movu                xm3,     [srcq+8*14]
    vinserti128          m3, m3, [srcq+8*15], 1
    add                tmpq, 32*8
    add                srcq, strideq
    pshufb               m0, m4
    pshufb               m1, m4
    pshufb               m2, m4
    pshufb               m3, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
    pmaddubsw            m2, m5
    pmaddubsw            m3, m5
    mova        [tmpq-32*4], m0
    mova        [tmpq-32*3], m1
    mova        [tmpq-32*2], m2
    mova        [tmpq-32*1], m3
    dec                  hd
    jg .h_w128
    RET
.v:
    WIN64_SPILL_XMM       7
    movzx                wd, word [t2+wq*2+table_offset(prep, _bilin_v)]
    imul               mxyd, 0xff01
    add                mxyd, 16 << 8
    add                  wq, t2
    lea            stride3q, [strideq*3]
    movd                xm6, mxyd
    vpbroadcastw         m6, xm6
    jmp                  wq
.v_w4:
    movd                xm0, [srcq+strideq*0]
.v_w4_loop:
    vpbroadcastd         m1, [srcq+strideq*2]
    vpbroadcastd        xm2, [srcq+strideq*1]
    vpbroadcastd         m3, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    vpblendd             m1, m1, m0, 0x05 ; 0 2 2 2
    vpbroadcastd         m0, [srcq+strideq*0]
    vpblendd             m3, m3, m2, 0x0f ; 1 1 3 3
    vpblendd             m2, m1, m0, 0xa0 ; 0 2 2 4
    vpblendd             m1, m1, m3, 0xaa ; 0 1 2 3
    vpblendd             m2, m2, m3, 0x55 ; 1 2 3 4
    punpcklbw            m2, m1
    pmaddubsw            m2, m6
    mova             [tmpq], m2
    add                tmpq, 32
    sub                  hd, 4
    jg .v_w4_loop
    RET
.v_w8:
    movq                xm0, [srcq+strideq*0]
.v_w8_loop:
    vpbroadcastq         m1, [srcq+strideq*2]
    vpbroadcastq         m2, [srcq+strideq*1]
    vpbroadcastq         m3, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    vpblendd             m1, m1, m0, 0x03 ; 0 2 2 2
    vpbroadcastq         m0, [srcq+strideq*0]
    vpblendd             m3, m3, m2, 0x33 ; 1 3 1 3
    vpblendd             m2, m1, m3, 0x0f ; 1 3 2 2
    vpblendd             m1, m1, m3, 0xf0 ; 0 2 1 3
    vpblendd             m2, m2, m0, 0xc0 ; 1 3 2 4
    punpcklbw            m3, m2, m1
    punpckhbw            m2, m1
    pmaddubsw            m3, m6
    pmaddubsw            m2, m6
    mova        [tmpq+32*0], m3
    mova        [tmpq+32*1], m2
    add                tmpq, 32*2
    sub                  hd, 4
    jg .v_w8_loop
    RET
.v_w16:
    vbroadcasti128       m0, [srcq+strideq*0]
.v_w16_loop:
    vbroadcasti128       m1, [srcq+strideq*2]
    vbroadcasti128       m2, [srcq+strideq*1]
    vbroadcasti128       m3, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    shufpd               m4, m0, m1, 0x0c ; 0 2
    vbroadcasti128       m0, [srcq+strideq*0]
    shufpd               m2, m2, m3, 0x0c ; 1 3
    shufpd               m1, m1, m0, 0x0c ; 2 4
    punpcklbw            m3, m2, m4
    punpcklbw            m5, m1, m2
    punpckhbw            m1, m2
    punpckhbw            m2, m4
    pmaddubsw            m3, m6
    pmaddubsw            m5, m6
    pmaddubsw            m2, m6
    pmaddubsw            m1, m6
    mova        [tmpq+32*0], m3
    mova        [tmpq+32*1], m5
    mova        [tmpq+32*2], m2
    mova        [tmpq+32*3], m1
    add                tmpq, 32*4
    sub                  hd, 4
    jg .v_w16_loop
    RET
.v_w32:
    vpermq               m0, [srcq+strideq*0], q3120
.v_w32_loop:
    vpermq               m1, [srcq+strideq*1], q3120
    vpermq               m2, [srcq+strideq*2], q3120
    vpermq               m3, [srcq+stride3q ], q3120
    lea                srcq, [srcq+strideq*4]
    punpcklbw            m4, m1, m0
    punpckhbw            m5, m1, m0
    vpermq               m0, [srcq+strideq*0], q3120
    pmaddubsw            m4, m6
    pmaddubsw            m5, m6
    mova        [tmpq+32*0], m4
    mova        [tmpq+32*1], m5
    punpcklbw            m4, m2, m1
    punpckhbw            m5, m2, m1
    pmaddubsw            m4, m6
    pmaddubsw            m5, m6
    mova        [tmpq+32*2], m4
    mova        [tmpq+32*3], m5
    add                tmpq, 32*8
    punpcklbw            m4, m3, m2
    punpckhbw            m5, m3, m2
    punpcklbw            m1, m0, m3
    punpckhbw            m2, m0, m3
    pmaddubsw            m4, m6
    pmaddubsw            m5, m6
    pmaddubsw            m1, m6
    pmaddubsw            m2, m6
    mova        [tmpq-32*4], m4
    mova        [tmpq-32*3], m5
    mova        [tmpq-32*2], m1
    mova        [tmpq-32*1], m2
    sub                  hd, 4
    jg .v_w32_loop
    RET
.v_w64:
    vpermq               m0, [srcq+strideq*0+32*0], q3120
    vpermq               m1, [srcq+strideq*0+32*1], q3120
.v_w64_loop:
    vpermq               m2, [srcq+strideq*1+32*0], q3120
    vpermq               m3, [srcq+strideq*1+32*1], q3120
    lea                srcq, [srcq+strideq*2]
    punpcklbw            m4, m2, m0
    punpckhbw            m5, m2, m0
    pmaddubsw            m4, m6
    pmaddubsw            m5, m6
    mova        [tmpq+32*0], m4
    mova        [tmpq+32*1], m5
    punpcklbw            m4, m3, m1
    punpckhbw            m5, m3, m1
    vpermq               m0, [srcq+strideq*0+32*0], q3120
    vpermq               m1, [srcq+strideq*0+32*1], q3120
    pmaddubsw            m4, m6
    pmaddubsw            m5, m6
    mova        [tmpq+32*2], m4
    mova        [tmpq+32*3], m5
    add                tmpq, 32*8
    punpcklbw            m4, m0, m2
    punpckhbw            m5, m0, m2
    punpcklbw            m2, m1, m3
    punpckhbw            m3, m1, m3
    pmaddubsw            m4, m6
    pmaddubsw            m5, m6
    pmaddubsw            m2, m6
    pmaddubsw            m3, m6
    mova        [tmpq-32*4], m4
    mova        [tmpq-32*3], m5
    mova        [tmpq-32*2], m2
    mova        [tmpq-32*1], m3
    sub                  hd, 2
    jg .v_w64_loop
    RET
.v_w128:
    mov                  t0, tmpq
    mov                  t1, srcq
    lea                 t2d, [hq+(3<<8)]
.v_w128_loop0:
    vpermq               m0, [srcq+strideq*0], q3120
.v_w128_loop:
    vpermq               m1, [srcq+strideq*1], q3120
    lea                srcq, [srcq+strideq*2]
    punpcklbw            m2, m1, m0
    punpckhbw            m3, m1, m0
    vpermq               m0, [srcq+strideq*0], q3120
    punpcklbw            m4, m0, m1
    punpckhbw            m5, m0, m1
    pmaddubsw            m2, m6
    pmaddubsw            m3, m6
    pmaddubsw            m4, m6
    pmaddubsw            m5, m6
    mova        [tmpq+32*0], m2
    mova        [tmpq+32*1], m3
    mova        [tmpq+32*8], m4
    mova        [tmpq+32*9], m5
    add                tmpq, 32*16
    sub                  hd, 2
    jg .v_w128_loop
    mov                  hb, t2b
    add                  t0, 64
    add                  t1, 32
    mov                tmpq, t0
    mov                srcq, t1
    sub                 t2d, 1<<8
    jg .v_w128_loop0
    RET
.hv:
    ; (16 * src[x] + (my * (src[x + src_stride] - src[x])) + 8) >> 4
    ; = src[x] + (((my * (src[x + src_stride] - src[x])) + 8) >> 4)
    %assign stack_offset stack_offset - stack_size_padded
    WIN64_SPILL_XMM       7
    movzx                wd, word [t2+wq*2+table_offset(prep, _bilin_hv)]
    shl                mxyd, 11
    movd                xm6, mxyd
    add                  wq, t2
    lea            stride3q, [strideq*3]
    vpbroadcastw         m6, xm6
    jmp                  wq
.hv_w4:
    vbroadcasti128       m4, [bilin_h_shuf4]
    vpbroadcastq         m0, [srcq+strideq*0]
    pshufb               m0, m4
    pmaddubsw            m0, m5
.hv_w4_loop:
    movq                xm1, [srcq+strideq*1]
    movhps              xm1, [srcq+strideq*2]
    movq                xm2, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    movhps              xm2, [srcq+strideq*0]
    vinserti128          m1, m1, xm2, 1
    pshufb               m1, m4
    pmaddubsw            m1, m5        ; 1 2 3 4
    vpblendd             m2, m1, m0, 0xc0
    vpermq               m2, m2, q2103 ; 0 1 2 3
    mova                 m0, m1
    psubw                m1, m2
    pmulhrsw             m1, m6
    paddw                m1, m2
    mova             [tmpq], m1
    add                tmpq, 32
    sub                  hd, 4
    jg .hv_w4_loop
    RET
.hv_w8:
    vbroadcasti128       m0,     [srcq+strideq*0]
    pshufb               m0, m4
    pmaddubsw            m0, m5
.hv_w8_loop:
    movu                xm1,     [srcq+strideq*1]
    vinserti128          m1, m1, [srcq+strideq*2], 1
    movu                xm2,     [srcq+stride3q ]
    lea                srcq,     [srcq+strideq*4]
    vinserti128          m2, m2, [srcq+strideq*0], 1
    pshufb               m1, m4
    pshufb               m2, m4
    pmaddubsw            m1, m5           ; 1 2
    vperm2i128           m3, m0, m1, 0x21 ; 0 1
    pmaddubsw            m0, m2, m5       ; 3 4
    vperm2i128           m2, m1, m0, 0x21 ; 2 3
    psubw                m1, m3
    pmulhrsw             m1, m6
    paddw                m1, m3
    psubw                m3, m0, m2
    pmulhrsw             m3, m6
    paddw                m3, m2
    mova        [tmpq+32*0], m1
    mova        [tmpq+32*1], m3
    add                tmpq, 32*2
    sub                  hd, 4
    jg .hv_w8_loop
    RET
.hv_w16:
    movu                 m0,     [srcq+strideq*0+8*0]
    vinserti128          m0, m0, [srcq+strideq*0+8*1], 1
    pshufb               m0, m4
    pmaddubsw            m0, m5
.hv_w16_loop:
    movu                xm1,     [srcq+strideq*1+8*0]
    vinserti128          m1, m1, [srcq+strideq*1+8*1], 1
    lea                srcq,     [srcq+strideq*2]
    movu                xm2,     [srcq+strideq*0+8*0]
    vinserti128          m2, m2, [srcq+strideq*0+8*1], 1
    pshufb               m1, m4
    pshufb               m2, m4
    pmaddubsw            m1, m5
    psubw                m3, m1, m0
    pmulhrsw             m3, m6
    paddw                m3, m0
    pmaddubsw            m0, m2, m5
    psubw                m2, m0, m1
    pmulhrsw             m2, m6
    paddw                m2, m1
    mova        [tmpq+32*0], m3
    mova        [tmpq+32*1], m2
    add                tmpq, 32*2
    sub                  hd, 2
    jg .hv_w16_loop
    RET
.hv_w32:
    movu                 m0,     [srcq+8*0]
    vinserti128          m0, m0, [srcq+8*1], 1
    movu                 m1,     [srcq+8*2]
    vinserti128          m1, m1, [srcq+8*3], 1
    pshufb               m0, m4
    pshufb               m1, m4
    pmaddubsw            m0, m5
    pmaddubsw            m1, m5
.hv_w32_loop:
    add                srcq, strideq
    movu                xm2,     [srcq+8*0]
    vinserti128          m2, m2, [srcq+8*1], 1
    pshufb               m2, m4
    pmaddubsw            m2, m5
    psubw                m3, m2, m0
    pmulhrsw             m3, m6
    paddw                m3, m0
    mova                 m0, m2
    mova          [tmpq+ 0], m3
    movu                xm2,     [srcq+8*2]
    vinserti128          m2, m2, [srcq+8*3], 1
    pshufb               m2, m4
    pmaddubsw            m2, m5
    psubw                m3, m2, m1
    pmulhrsw             m3, m6
    paddw                m3, m1
    mova                 m1, m2
    mova          [tmpq+32], m3
    add                tmpq, 32*2
    dec                  hd
    jg .hv_w32_loop
    RET
.hv_w64:
    mov                  t0, tmpq
    mov                  t1, srcq
    lea                 t2d, [hq+(3<<8)]
.hv_w64_loop0:
    movu                 m0,     [srcq+strideq*0+8*0]
    vinserti128          m0, m0, [srcq+strideq*0+8*1], 1
    pshufb               m0, m4
    pmaddubsw            m0, m5
.hv_w64_loop:
    movu                xm1,     [srcq+strideq*1+8*0]
    vinserti128          m1, m1, [srcq+strideq*1+8*1], 1
    lea                srcq,     [srcq+strideq*2]
    movu                xm2,     [srcq+strideq*0+8*0]
    vinserti128          m2, m2, [srcq+strideq*0+8*1], 1
    pshufb               m1, m4
    pshufb               m2, m4
    pmaddubsw            m1, m5
    psubw                m3, m1, m0
    pmulhrsw             m3, m6
    paddw                m3, m0
    pmaddubsw            m0, m2, m5
    psubw                m2, m0, m1
    pmulhrsw             m2, m6
    paddw                m2, m1
    mova        [tmpq+32*0], m3
    add                tmpq, 32*8
    mova        [tmpq-32*4], m2
    sub                  hd, 2
    jg .hv_w64_loop
    mov                  hb, t2b
    add                  t0, 32
    add                  t1, 16
    mov                tmpq, t0
    mov                srcq, t1
    sub                 t2d, 1<<8
    jg .hv_w64_loop0
    RET
.hv_w128:
    mov                  t0, tmpq
    mov                  t1, srcq
    lea                 t2d, [hq+(7<<8)]
.hv_w128_loop0:
    movu                 m0,     [srcq+strideq*0+8*0]
    vinserti128          m0, m0, [srcq+strideq*0+8*1], 1
    pshufb               m0, m4
    pmaddubsw            m0, m5
.hv_w128_loop:
    movu                xm1,     [srcq+strideq*1+8*0]
    vinserti128          m1, m1, [srcq+strideq*1+8*1], 1
    lea                srcq,     [srcq+strideq*2]
    movu                xm2,     [srcq+strideq*0+8*0]
    vinserti128          m2, m2, [srcq+strideq*0+8*1], 1
    pshufb               m1, m4
    pshufb               m2, m4
    pmaddubsw            m1, m5
    psubw                m3, m1, m0
    pmulhrsw             m3, m6
    paddw                m3, m0
    pmaddubsw            m0, m2, m5
    psubw                m2, m0, m1
    pmulhrsw             m2, m6
    paddw                m2, m1
    mova        [tmpq+32*0], m3
    mova        [tmpq+32*8], m2
    add                tmpq, 32*16
    sub                  hd, 2
    jg .hv_w128_loop
    mov                  hb, t2b
    add                  t0, 32
    add                  t1, 16
    mov                tmpq, t0
    mov                srcq, t1
    sub                 t2d, 1<<8
    jg .hv_w128_loop0
    RET

; int8_t subpel_filters[5][15][8]
%assign FILTER_REGULAR (0*15 << 16) | 3*15
%assign FILTER_SMOOTH  (1*15 << 16) | 4*15
%assign FILTER_SHARP   (2*15 << 16) | 3*15

%if WIN64
DECLARE_REG_TMP 4, 5
%else
DECLARE_REG_TMP 7, 8
%endif
%macro PUT_8TAP_FN 3 ; type, type_h, type_v
cglobal put_8tap_%1
    mov                 t0d, FILTER_%2
    mov                 t1d, FILTER_%3
%ifnidn %1, sharp_smooth ; skip the jump in the last filter
    jmp mangle(private_prefix %+ _put_8tap %+ SUFFIX)
%endif
%endmacro

PUT_8TAP_FN regular,        REGULAR, REGULAR
PUT_8TAP_FN regular_sharp,  REGULAR, SHARP
PUT_8TAP_FN regular_smooth, REGULAR, SMOOTH
PUT_8TAP_FN smooth_regular, SMOOTH,  REGULAR
PUT_8TAP_FN smooth,         SMOOTH,  SMOOTH
PUT_8TAP_FN smooth_sharp,   SMOOTH,  SHARP
PUT_8TAP_FN sharp_regular,  SHARP,   REGULAR
PUT_8TAP_FN sharp,          SHARP,   SHARP
PUT_8TAP_FN sharp_smooth,   SHARP,   SMOOTH

cglobal put_8tap, 4, 9, 0, dst, ds, src, ss, w, h, mx, my, ss3
    imul                mxd, mxm, 0x010101
    add                 mxd, t0d ; 8tap_h, mx, 4tap_h
    imul                myd, mym, 0x010101
    add                 myd, t1d ; 8tap_v, my, 4tap_v
    lea                  r8, [put_avx2]
    movsxd               wq, wm
    movifnidn            hd, hm
    test                mxd, 0xf00
    jnz .h
    test                myd, 0xf00
    jnz .v
    tzcnt                wd, wd
    movzx                wd, word [r8+wq*2+table_offset(put,)]
    add                  wq, r8
    lea                  r6, [ssq*3]
    lea                  r7, [dsq*3]
%if WIN64
    pop                  r8
%endif
    jmp                  wq
.h:
    test                myd, 0xf00
    jnz .hv
    vpbroadcastd         m5, [pw_34] ; 2 + (8 << 2)
    WIN64_SPILL_XMM      11
    cmp                  wd, 4
    jl .h_w2
    vbroadcasti128       m6, [subpel_h_shufA]
    je .h_w4
    tzcnt                wd, wd
    vbroadcasti128       m7, [subpel_h_shufB]
    vbroadcasti128       m8, [subpel_h_shufC]
    shr                 mxd, 16
    sub                srcq, 3
    movzx                wd, word [r8+wq*2+table_offset(put, _8tap_h)]
    vpbroadcastd         m9, [r8+mxq*8+subpel_filters-put_avx2+0]
    vpbroadcastd        m10, [r8+mxq*8+subpel_filters-put_avx2+4]
    add                  wq, r8
    jmp                  wq
.h_w2:
    movzx               mxd, mxb
    dec                srcq
    mova                xm4, [subpel_h_shuf4]
    vpbroadcastd        xm3, [r8+mxq*8+subpel_filters-put_avx2+2]
.h_w2_loop:
    movq                xm0, [srcq+ssq*0]
    movhps              xm0, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    pshufb              xm0, xm4
    pmaddubsw           xm0, xm3
    phaddw              xm0, xm0
    paddw               xm0, xm5
    psraw               xm0, 6
    packuswb            xm0, xm0
    pextrw     [dstq+dsq*0], xm0, 0
    pextrw     [dstq+dsq*1], xm0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .h_w2_loop
    RET
.h_w4:
    movzx               mxd, mxb
    dec                srcq
    vpbroadcastd        xm3, [r8+mxq*8+subpel_filters-put_avx2+2]
.h_w4_loop:
    movq                xm0, [srcq+ssq*0]
    movq                xm1, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    pshufb              xm0, xm6
    pshufb              xm1, xm6
    pmaddubsw           xm0, xm3
    pmaddubsw           xm1, xm3
    phaddw              xm0, xm1
    paddw               xm0, xm5
    psraw               xm0, 6
    packuswb            xm0, xm0
    movd       [dstq+dsq*0], xm0
    pextrd     [dstq+dsq*1], xm0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .h_w4_loop
    RET
.h_w8:
%macro PUT_8TAP_H 4 ; dst/src, tmp[1-3]
    pshufb              m%2, m%1, m7
    pshufb              m%3, m%1, m8
    pshufb              m%1, m6
    pmaddubsw           m%4, m%2, m9
    pmaddubsw           m%2, m10
    pmaddubsw           m%3, m10
    pmaddubsw           m%1, m9
    paddw               m%3, m%4
    paddw               m%1, m%2
    phaddw              m%1, m%3
    paddw               m%1, m5
    psraw               m%1, 6
%endmacro
    movu                xm0,     [srcq+ssq*0]
    vinserti128          m0, m0, [srcq+ssq*1], 1
    lea                srcq,     [srcq+ssq*2]
    PUT_8TAP_H            0, 1, 2, 3
    vextracti128        xm1, m0, 1
    packuswb            xm0, xm1
    movq       [dstq+dsq*0], xm0
    movhps     [dstq+dsq*1], xm0
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .h_w8
    RET
.h_w16:
    movu                xm0,     [srcq+ssq*0+8*0]
    vinserti128          m0, m0, [srcq+ssq*1+8*0], 1
    movu                xm1,     [srcq+ssq*0+8*1]
    vinserti128          m1, m1, [srcq+ssq*1+8*1], 1
    PUT_8TAP_H            0, 2, 3, 4
    lea                srcq, [srcq+ssq*2]
    PUT_8TAP_H            1, 2, 3, 4
    packuswb             m0, m1
    mova         [dstq+dsq*0], xm0
    vextracti128 [dstq+dsq*1], m0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .h_w16
    RET
.h_w32:
    xor                 r6d, r6d
    jmp .h_start
.h_w64:
    mov                  r6, -32*1
    jmp .h_start
.h_w128:
    mov                  r6, -32*3
.h_start:
    sub                srcq, r6
    sub                dstq, r6
    mov                  r4, r6
.h_loop:
    movu                 m0, [srcq+r6+8*0]
    movu                 m1, [srcq+r6+8*1]
    PUT_8TAP_H            0, 2, 3, 4
    PUT_8TAP_H            1, 2, 3, 4
    packuswb             m0, m1
    mova          [dstq+r6], m0
    add                  r6, 32
    jle .h_loop
    add                srcq, ssq
    add                dstq, dsq
    mov                  r6, r4
    dec                  hd
    jg .h_loop
    RET
.v:
    %assign stack_offset stack_offset - stack_size_padded
    WIN64_SPILL_XMM      16
    movzx               mxd, myb
    shr                 myd, 16
    cmp                  hd, 4
    cmovle              myd, mxd
    tzcnt               r6d, wd
    movzx               r6d, word [r8+r6*2+table_offset(put, _8tap_v)]
    vpbroadcastd         m7, [pw_512]
    lea                 myq, [r8+myq*8+subpel_filters-put_avx2]
    vpbroadcastw         m8, [myq+0]
    vpbroadcastw         m9, [myq+2]
    vpbroadcastw        m10, [myq+4]
    vpbroadcastw        m11, [myq+6]
    add                  r6, r8
    lea                ss3q, [ssq*3]
    sub                srcq, ss3q
    jmp                  r6
.v_w2:
    movd                xm2, [srcq+ssq*0]
    pinsrw              xm2, [srcq+ssq*1], 2
    pinsrw              xm2, [srcq+ssq*2], 4
    pinsrw              xm2, [srcq+ss3q ], 6 ; 0 1 2 3
    lea                srcq, [srcq+ssq*4]
    movd                xm3, [srcq+ssq*0]
    vpbroadcastd        xm1, [srcq+ssq*1]
    vpbroadcastd        xm0, [srcq+ssq*2]
    add                srcq, ss3q
    vpblendd            xm3, xm3, xm1, 0x02  ; 4 5
    vpblendd            xm1, xm1, xm0, 0x02  ; 5 6
    palignr             xm4, xm3, xm2, 4     ; 1 2 3 4
    punpcklbw           xm3, xm1             ; 45 56
    punpcklbw           xm1, xm2, xm4        ; 01 12
    punpckhbw           xm2, xm4             ; 23 34
.v_w2_loop:
    pmaddubsw           xm5, xm1, xm8        ; a0 b0
    mova                xm1, xm2
    pmaddubsw           xm2, xm9             ; a1 b1
    paddw               xm5, xm2
    mova                xm2, xm3
    pmaddubsw           xm3, xm10            ; a2 b2
    paddw               xm5, xm3
    vpbroadcastd        xm4, [srcq+ssq*0]
    vpblendd            xm3, xm0, xm4, 0x02  ; 6 7
    vpbroadcastd        xm0, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vpblendd            xm4, xm4, xm0, 0x02  ; 7 8
    punpcklbw           xm3, xm4             ; 67 78
    pmaddubsw           xm4, xm3, xm11       ; a3 b3
    paddw               xm5, xm4
    pmulhrsw            xm5, xm7
    packuswb            xm5, xm5
    pextrw     [dstq+dsq*0], xm5, 0
    pextrw     [dstq+dsq*1], xm5, 2
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .v_w2_loop
    RET
.v_w4:
    movd                xm2, [srcq+ssq*0]
    pinsrd              xm2, [srcq+ssq*1], 1
    pinsrd              xm2, [srcq+ssq*2], 2
    pinsrd              xm2, [srcq+ss3q ], 3 ; 0 1 2 3
    lea                srcq, [srcq+ssq*4]
    movd                xm3, [srcq+ssq*0]
    vpbroadcastd        xm1, [srcq+ssq*1]
    vpbroadcastd        xm0, [srcq+ssq*2]
    add                srcq, ss3q
    vpblendd            xm3, xm3, xm1, 0x02  ; 4 5
    vpblendd            xm1, xm1, xm0, 0x02  ; 5 6
    palignr             xm4, xm3, xm2, 4     ; 1 2 3 4
    punpcklbw           xm3, xm1             ; 45 56
    punpcklbw           xm1, xm2, xm4        ; 01 12
    punpckhbw           xm2, xm4             ; 23 34
.v_w4_loop:
    pmaddubsw           xm5, xm1, xm8        ; a0 b0
    mova                xm1, xm2
    pmaddubsw           xm2, xm9             ; a1 b1
    paddw               xm5, xm2
    mova                xm2, xm3
    pmaddubsw           xm3, xm10            ; a2 b2
    paddw               xm5, xm3
    vpbroadcastd        xm4, [srcq+ssq*0]
    vpblendd            xm3, xm0, xm4, 0x02  ; 6 7
    vpbroadcastd        xm0, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vpblendd            xm4, xm4, xm0, 0x02  ; 7 8
    punpcklbw           xm3, xm4             ; 67 78
    pmaddubsw           xm4, xm3, xm11       ; a3 b3
    paddw               xm5, xm4
    pmulhrsw            xm5, xm7
    packuswb            xm5, xm5
    movd       [dstq+dsq*0], xm5
    pextrd     [dstq+dsq*1], xm5, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .v_w4_loop
    RET
.v_w8:
    movq                xm1, [srcq+ssq*0]
    vpbroadcastq         m4, [srcq+ssq*1]
    vpbroadcastq         m2, [srcq+ssq*2]
    vpbroadcastq         m5, [srcq+ss3q ]
    lea                srcq, [srcq+ssq*4]
    vpbroadcastq         m3, [srcq+ssq*0]
    vpbroadcastq         m6, [srcq+ssq*1]
    vpbroadcastq         m0, [srcq+ssq*2]
    add                srcq, ss3q
    vpblendd             m1, m1, m4, 0x30
    vpblendd             m4, m4, m2, 0x30
    punpcklbw            m1, m4 ; 01 12
    vpblendd             m2, m2, m5, 0x30
    vpblendd             m5, m5, m3, 0x30
    punpcklbw            m2, m5 ; 23 34
    vpblendd             m3, m3, m6, 0x30
    vpblendd             m6, m6, m0, 0x30
    punpcklbw            m3, m6 ; 45 56
.v_w8_loop:
    pmaddubsw            m5, m1, m8  ; a0 b0
    mova                 m1, m2
    pmaddubsw            m2, m9      ; a1 b1
    paddw                m5, m2
    mova                 m2, m3
    pmaddubsw            m3, m10     ; a2 b2
    paddw                m5, m3
    vpbroadcastq         m4, [srcq+ssq*0]
    vpblendd             m3, m0, m4, 0x30
    vpbroadcastq         m0, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vpblendd             m4, m4, m0, 0x30
    punpcklbw            m3, m4      ; 67 78
    pmaddubsw            m4, m3, m11 ; a3 b3
    paddw                m5, m4
    pmulhrsw             m5, m7
    vextracti128        xm4, m5, 1
    packuswb            xm5, xm4
    movq       [dstq+dsq*0], xm5
    movhps     [dstq+dsq*1], xm5
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .v_w8_loop
    RET
.v_w16:
.v_w32:
.v_w64:
.v_w128:
    lea                 r6d, [wq-16]
    mov                  r4, dstq
    mov                  r7, srcq
    shl                 r6d, 4
    mov                 r6b, hb
.v_w16_loop0:
    vbroadcasti128       m4, [srcq+ssq*0]
    vbroadcasti128       m5, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vbroadcasti128       m0, [srcq+ssq*1]
    vbroadcasti128       m6, [srcq+ssq*0]
    lea                srcq, [srcq+ssq*2]
    vbroadcasti128       m1, [srcq+ssq*0]
    vbroadcasti128       m2, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vbroadcasti128       m3, [srcq+ssq*0]
    shufpd               m4, m4, m0, 0x0c
    shufpd               m5, m5, m1, 0x0c
    punpcklbw            m1, m4, m5 ; 01
    punpckhbw            m4, m5     ; 34
    shufpd               m6, m6, m2, 0x0c
    punpcklbw            m2, m5, m6 ; 12
    punpckhbw            m5, m6     ; 45
    shufpd               m0, m0, m3, 0x0c
    punpcklbw            m3, m6, m0 ; 23
    punpckhbw            m6, m0     ; 56
.v_w16_loop:
    vbroadcasti128      m12, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vbroadcasti128      m13, [srcq+ssq*0]
    pmaddubsw           m14, m1, m8  ; a0
    pmaddubsw           m15, m2, m8  ; b0
    mova                 m1, m3
    mova                 m2, m4
    pmaddubsw            m3, m9      ; a1
    pmaddubsw            m4, m9      ; b1
    paddw               m14, m3
    paddw               m15, m4
    mova                 m3, m5
    mova                 m4, m6
    pmaddubsw            m5, m10     ; a2
    pmaddubsw            m6, m10     ; b2
    paddw               m14, m5
    paddw               m15, m6
    shufpd               m6, m0, m12, 0x0d
    shufpd               m0, m12, m13, 0x0c
    punpcklbw            m5, m6, m0  ; 67
    punpckhbw            m6, m0      ; 78
    pmaddubsw           m12, m5, m11 ; a3
    pmaddubsw           m13, m6, m11 ; b3
    paddw               m14, m12
    paddw               m15, m13
    pmulhrsw            m14, m7
    pmulhrsw            m15, m7
    packuswb            m14, m15
    vpermq              m14, m14, q3120
    mova         [dstq+dsq*0], xm14
    vextracti128 [dstq+dsq*1], m14, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .v_w16_loop
    mov                  hb, r6b
    add                  r4, 16
    add                  r7, 16
    mov                dstq, r4
    mov                srcq, r7
    sub                 r6d, 1<<8
    jg .v_w16_loop0
    RET
.hv:
    %assign stack_offset stack_offset - stack_size_padded
    WIN64_SPILL_XMM      16
    cmp                  wd, 4
    jg .hv_w8
    movzx               mxd, mxb
    dec                srcq
    vpbroadcastd         m7, [r8+mxq*8+subpel_filters-put_avx2+2]
    movzx               mxd, myb
    shr                 myd, 16
    cmp                  hd, 4
    cmovle              myd, mxd
    vpbroadcastq         m0, [r8+myq*8+subpel_filters-put_avx2]
    lea                ss3q, [ssq*3]
    sub                srcq, ss3q
    punpcklbw            m0, m0
    psraw                m0, 8 ; sign-extend
    vpbroadcastd         m8, [pw_8192]
    vpbroadcastd         m9, [pd_512]
    pshufd              m10, m0, q0000
    pshufd              m11, m0, q1111
    pshufd              m12, m0, q2222
    pshufd              m13, m0, q3333
    cmp                  wd, 4
    je .hv_w4
    vbroadcasti128       m6, [subpel_h_shuf4]
    movq                xm2, [srcq+ssq*0]
    movhps              xm2, [srcq+ssq*1]
    movq                xm0, [srcq+ssq*2]
    movhps              xm0, [srcq+ss3q ]
    lea                srcq, [srcq+ssq*4]
    vpbroadcastq         m3, [srcq+ssq*0]
    vpbroadcastq         m4, [srcq+ssq*1]
    vpbroadcastq         m1, [srcq+ssq*2]
    add                srcq, ss3q
    vpblendd             m2, m2, m3, 0x30
    vpblendd             m0, m0, m1, 0x30
    vpblendd             m2, m2, m4, 0xc0
    pshufb               m2, m6
    pshufb               m0, m6
    pmaddubsw            m2, m7
    pmaddubsw            m0, m7
    phaddw               m2, m0
    pmulhrsw             m2, m8
    vextracti128        xm3, m2, 1
    palignr             xm4, xm3, xm2, 4
    punpcklwd           xm1, xm2, xm4  ; 01 12
    punpckhwd           xm2, xm4       ; 23 34
    pshufd              xm0, xm3, q2121
    punpcklwd           xm3, xm0       ; 45 56
.hv_w2_loop:
    pmaddwd             xm5, xm1, xm10 ; a0 b0
    mova                xm1, xm2
    pmaddwd             xm2, xm11      ; a1 b1
    paddd               xm5, xm2
    mova                xm2, xm3
    pmaddwd             xm3, xm12      ; a2 b2
    paddd               xm5, xm3
    movq                xm4, [srcq+ssq*0]
    movhps              xm4, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    pshufb              xm4, xm6
    pmaddubsw           xm4, xm7
    phaddw              xm4, xm4
    pmulhrsw            xm4, xm8
    palignr             xm3, xm4, xm0, 12
    mova                xm0, xm4
    punpcklwd           xm3, xm0       ; 67 78
    pmaddwd             xm4, xm3, xm13 ; a3 b3
    paddd               xm5, xm9
    paddd               xm5, xm4
    psrad               xm5, 10
    packssdw            xm5, xm5
    packuswb            xm5, xm5
    pextrw     [dstq+dsq*0], xm5, 0
    pextrw     [dstq+dsq*1], xm5, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .hv_w2_loop
    RET
.hv_w4:
    mova                 m6, [subpel_h_shuf4]
    vpbroadcastq         m2, [srcq+ssq*0]
    vpbroadcastq         m4, [srcq+ssq*1]
    vpbroadcastq         m0, [srcq+ssq*2]
    vpbroadcastq         m5, [srcq+ss3q ]
    lea                srcq, [srcq+ssq*4]
    vpbroadcastq         m3, [srcq+ssq*0]
    vpblendd             m2, m2, m4, 0xcc ; 0 1
    vpbroadcastq         m4, [srcq+ssq*1]
    vpbroadcastq         m1, [srcq+ssq*2]
    add                srcq, ss3q
    vpblendd             m0, m0, m5, 0xcc ; 2 3
    vpblendd             m3, m3, m4, 0xcc ; 4 5
    pshufb               m2, m6
    pshufb               m0, m6
    pshufb               m3, m6
    pshufb               m1, m6
    pmaddubsw            m2, m7
    pmaddubsw            m0, m7
    pmaddubsw            m3, m7
    pmaddubsw            m1, m7
    phaddw               m2, m0
    phaddw               m3, m1
    pmulhrsw             m2, m8
    pmulhrsw             m3, m8
    palignr              m4, m3, m2, 4
    punpcklwd            m1, m2, m4  ; 01 12
    punpckhwd            m2, m4      ; 23 34
    pshufd               m0, m3, q2121
    punpcklwd            m3, m0      ; 45 56
.hv_w4_loop:
    pmaddwd              m5, m1, m10 ; a0 b0
    mova                 m1, m2
    pmaddwd              m2, m11     ; a1 b1
    paddd                m5, m2
    mova                 m2, m3
    pmaddwd              m3, m12     ; a2 b2
    paddd                m5, m3
    vpbroadcastq         m4, [srcq+ssq*0]
    vpbroadcastq         m3, [srcq+ssq*1]
    lea                srcq, [srcq+ssq*2]
    vpblendd             m4, m4, m3, 0xcc ; 7 8
    pshufb               m4, m6
    pmaddubsw            m4, m7
    phaddw               m4, m4
    pmulhrsw             m4, m8
    palignr              m3, m4, m0, 12
    mova                 m0, m4
    punpcklwd            m3, m0      ; 67 78
    pmaddwd              m4, m3, m13 ; a3 b3
    paddd                m5, m9
    paddd                m5, m4
    psrad                m5, 10
    vextracti128        xm4, m5, 1
    packssdw            xm5, xm4
    packuswb            xm5, xm5
    pshuflw             xm5, xm5, q3120
    movd       [dstq+dsq*0], xm5
    pextrd     [dstq+dsq*1], xm5, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .hv_w4_loop
    RET
.hv_w8:
    shr                 mxd, 16
    sub                srcq, 3
    vpbroadcastd        m10, [r8+mxq*8+subpel_filters-put_avx2+0]
    vpbroadcastd        m11, [r8+mxq*8+subpel_filters-put_avx2+4]
    movzx               mxd, myb
    shr                 myd, 16
    cmp                  hd, 4
    cmovle              myd, mxd
    vpbroadcastq         m0, [r8+myq*8+subpel_filters-put_avx2]
    lea                ss3q, [ssq*3]
    sub                srcq, ss3q
    punpcklbw            m0, m0
    psraw                m0, 8 ; sign-extend
    pshufd              m12, m0, q0000
    pshufd              m13, m0, q1111
    pshufd              m14, m0, q2222
    pshufd              m15, m0, q3333
    lea                 r6d, [wq-8]
    mov                  r4, dstq
    mov                  r7, srcq
    shl                 r6d, 5
    mov                 r6b, hb
.hv_w8_loop0:
    vbroadcasti128       m7, [subpel_h_shufA]
    vbroadcasti128       m8, [subpel_h_shufB]
    vbroadcasti128       m9, [subpel_h_shufC]
    movu                xm4,     [srcq+ssq*0]
    movu                xm5,     [srcq+ssq*1]
    lea                srcq,     [srcq+ssq*2]
    movu                xm6,     [srcq+ssq*0]
    vbroadcasti128       m0,     [srcq+ssq*1]
    lea                srcq,     [srcq+ssq*2]
    vpblendd             m4, m4, m0, 0xf0        ; 0 3
    vinserti128          m5, m5, [srcq+ssq*0], 1 ; 1 4
    vinserti128          m6, m6, [srcq+ssq*1], 1 ; 2 5
    lea                srcq,     [srcq+ssq*2]
    vinserti128          m0, m0, [srcq+ssq*0], 1 ; 3 6
%macro HV_H_W8 4-7 ; src/dst, tmp[1-3], shuf[1-3]
    pshufb               %3, %1, %6
    pshufb               %4, %1, %7
    pshufb               %1, %5
    pmaddubsw            %2, %3, m10
    pmaddubsw            %4, m11
    pmaddubsw            %3, m11
    pmaddubsw            %1, m10
    paddw                %2, %4
    paddw                %1, %3
    phaddw               %1, %2
%endmacro
    HV_H_W8              m4, m1, m2, m3, m7, m8, m9
    HV_H_W8              m5, m1, m2, m3, m7, m8, m9
    HV_H_W8              m6, m1, m2, m3, m7, m8, m9
    HV_H_W8              m0, m1, m2, m3, m7, m8, m9
    vpbroadcastd         m7, [pw_8192]
    vpermq               m4, m4, q3120
    vpermq               m5, m5, q3120
    vpermq               m6, m6, q3120
    pmulhrsw             m0, m7
    pmulhrsw             m4, m7
    pmulhrsw             m5, m7
    pmulhrsw             m6, m7
    vpermq               m7, m0, q3120
    punpcklwd            m1, m4, m5  ; 01
    punpckhwd            m4, m5      ; 34
    punpcklwd            m2, m5, m6  ; 12
    punpckhwd            m5, m6      ; 45
    punpcklwd            m3, m6, m7  ; 23
    punpckhwd            m6, m7      ; 56
.hv_w8_loop:
    vextracti128        r6m, m0, 1 ; not enough registers
    movu                xm0,     [srcq+ssq*1]
    lea                srcq,     [srcq+ssq*2]
    vinserti128          m0, m0, [srcq+ssq*0], 1 ; 7 8
    pmaddwd              m8, m1, m12 ; a0
    pmaddwd              m9, m2, m12 ; b0
    mova                 m1, m3
    mova                 m2, m4
    pmaddwd              m3, m13     ; a1
    pmaddwd              m4, m13     ; b1
    paddd                m8, m3
    paddd                m9, m4
    mova                 m3, m5
    mova                 m4, m6
    pmaddwd              m5, m14     ; a2
    pmaddwd              m6, m14     ; b2
    paddd                m8, m5
    paddd                m9, m6
    vbroadcasti128       m6, [subpel_h_shufB]
    vbroadcasti128       m7, [subpel_h_shufC]
    vbroadcasti128       m5, [subpel_h_shufA]
    HV_H_W8              m0, m5, m6, m7, m5, m6, m7
    vpbroadcastd         m5, [pw_8192]
    vpbroadcastd         m7, [pd_512]
    vbroadcasti128       m6, r6m
    pmulhrsw             m0, m5
    paddd                m8, m7
    paddd                m9, m7
    vpermq               m7, m0, q3120    ; 7 8
    shufpd               m6, m6, m7, 0x04 ; 6 7
    punpcklwd            m5, m6, m7  ; 67
    punpckhwd            m6, m7      ; 78
    pmaddwd              m7, m5, m15 ; a3
    paddd                m8, m7
    pmaddwd              m7, m6, m15 ; b3
    paddd                m7, m9
    psrad                m8, 10
    psrad                m7, 10
    packssdw             m8, m7
    vextracti128        xm7, m8, 1
    packuswb            xm8, xm7
    pshufd              xm7, xm8, q3120
    movq       [dstq+dsq*0], xm7
    movhps     [dstq+dsq*1], xm7
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .hv_w8_loop
    mov                  hb, r6b
    add                  r4, 8
    add                  r7, 8
    mov                dstq, r4
    mov                srcq, r7
    sub                 r6d, 1<<8
    jg .hv_w8_loop0
    RET

%if WIN64
DECLARE_REG_TMP 6, 4
%else
DECLARE_REG_TMP 6, 7
%endif
%macro PREP_8TAP_FN 3 ; type, type_h, type_v
cglobal prep_8tap_%1
    mov                 t0d, FILTER_%2
    mov                 t1d, FILTER_%3
%ifnidn %1, sharp_smooth ; skip the jump in the last filter
    jmp mangle(private_prefix %+ _prep_8tap %+ SUFFIX)
%endif
%endmacro

PREP_8TAP_FN regular,        REGULAR, REGULAR
PREP_8TAP_FN regular_sharp,  REGULAR, SHARP
PREP_8TAP_FN regular_smooth, REGULAR, SMOOTH
PREP_8TAP_FN smooth_regular, SMOOTH,  REGULAR
PREP_8TAP_FN smooth,         SMOOTH,  SMOOTH
PREP_8TAP_FN smooth_sharp,   SMOOTH,  SHARP
PREP_8TAP_FN sharp_regular,  SHARP,   REGULAR
PREP_8TAP_FN sharp,          SHARP,   SHARP
PREP_8TAP_FN sharp_smooth,   SHARP,   SMOOTH

cglobal prep_8tap, 3, 8, 0, tmp, src, stride, w, h, mx, my, stride3
    imul                mxd, mxm, 0x010101
    add                 mxd, t0d ; 8tap_h, mx, 4tap_h
    imul                myd, mym, 0x010101
    add                 myd, t1d ; 8tap_v, my, 4tap_v
    lea                  r7, [prep_avx2]
    movsxd               wq, wm
    movifnidn            hd, hm
    test                mxd, 0xf00
    jnz .h
    test                myd, 0xf00
    jnz .v
    tzcnt                wd, wd
    movzx                wd, word [r7+wq*2+table_offset(prep,)]
    add                  wq, r7
    lea                  r6, [strideq*3]
%if WIN64
    pop                  r7
%endif
    jmp                  wq
.h:
    test                myd, 0xf00
    jnz .hv
    vbroadcasti128       m5, [subpel_h_shufA]
    vpbroadcastd         m4, [pw_8192]
    WIN64_SPILL_XMM      10
    cmp                  wd, 4
    je .h_w4
    tzcnt                wd, wd
    vbroadcasti128       m6, [subpel_h_shufB]
    vbroadcasti128       m7, [subpel_h_shufC]
    shr                 mxd, 16
    sub                srcq, 3
    movzx                wd, word [r7+wq*2+table_offset(prep, _8tap_h)]
    vpbroadcastd         m8, [r7+mxq*8+subpel_filters-prep_avx2+0]
    vpbroadcastd         m9, [r7+mxq*8+subpel_filters-prep_avx2+4]
    add                  wq, r7
    jmp                  wq
.h_w4:
    movzx               mxd, mxb
    dec                srcq
    vpbroadcastd         m3, [r7+mxq*8+subpel_filters-prep_avx2+2]
    lea            stride3q, [strideq*3]
.h_w4_loop:
    movq                xm0, [srcq+strideq*0]
    vpbroadcastq         m2, [srcq+strideq*2]
    movq                xm1, [srcq+strideq*1]
    vpblendd             m0, m0, m2, 0xf0
    vpbroadcastq         m2, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    vpblendd             m1, m1, m2, 0xf0
    pshufb               m0, m5
    pshufb               m1, m5
    pmaddubsw            m0, m3
    pmaddubsw            m1, m3
    phaddw               m0, m1
    pmulhrsw             m0, m4
    mova             [tmpq], m0
    add                tmpq, 32
    sub                  hd, 4
    jg .h_w4_loop
    RET
.h_w8:
%macro PREP_8TAP_H 0
    pshufb               m1, m0, m6
    pshufb               m2, m0, m7
    pshufb               m0, m5
    pmaddubsw            m3, m1, m8
    pmaddubsw            m1, m9
    pmaddubsw            m2, m9
    pmaddubsw            m0, m8
    paddw                m2, m3
    paddw                m0, m1
    phaddw               m0, m2
    pmulhrsw             m0, m4
%endmacro
    movu                xm0,     [srcq+strideq*0]
    vinserti128          m0, m0, [srcq+strideq*1], 1
    lea                srcq,     [srcq+strideq*2]
    PREP_8TAP_H
    mova             [tmpq], m0
    add                tmpq, 32
    sub                  hd, 2
    jg .h_w8
    RET
.h_w16:
    movu                xm0,     [srcq+strideq*0+8*0]
    vinserti128          m0, m0, [srcq+strideq*0+8*1], 1
    PREP_8TAP_H
    mova        [tmpq+32*0], m0
    movu                xm0,     [srcq+strideq*1+8*0]
    vinserti128          m0, m0, [srcq+strideq*1+8*1], 1
    lea                srcq, [srcq+strideq*2]
    PREP_8TAP_H
    mova        [tmpq+32*1], m0
    add                tmpq, 64
    sub                  hd, 2
    jg .h_w16
    RET
.h_w32:
    xor                 r6d, r6d
    jmp .h_start
.h_w64:
    mov                  r6, -32*1
    jmp .h_start
.h_w128:
    mov                  r6, -32*3
.h_start:
    sub                srcq, r6
    mov                  r5, r6
.h_loop:
    movu                xm0,     [srcq+r6+8*0]
    vinserti128          m0, m0, [srcq+r6+8*1], 1
    PREP_8TAP_H
    mova        [tmpq+32*0], m0
    movu                xm0,     [srcq+r6+8*2]
    vinserti128          m0, m0, [srcq+r6+8*3], 1
    PREP_8TAP_H
    mova        [tmpq+32*1], m0
    add                tmpq, 64
    add                  r6, 32
    jle .h_loop
    add                srcq, strideq
    mov                  r6, r5
    dec                  hd
    jg .h_loop
    RET
.v:
    %assign stack_offset stack_offset - stack_size_padded
    WIN64_SPILL_XMM      16
    movzx               mxd, myb ; Select 4-tap/8-tap filter multipliers.
    shr                 myd, 16  ; Note that the code is 8-tap only, having
    cmp                  hd, 4   ; a separate 4-tap code path for (4|8|16)x4
    cmove               myd, mxd ; had a negligible effect on performance.
    ; TODO: Would a 6-tap code path be worth it?
    vpbroadcastd         m7, [pw_8192]
    lea                 myq, [r7+myq*8+subpel_filters-prep_avx2]
    vpbroadcastw         m8, [myq+0]
    vpbroadcastw         m9, [myq+2]
    vpbroadcastw        m10, [myq+4]
    vpbroadcastw        m11, [myq+6]
    lea            stride3q, [strideq*3]
    sub                srcq, stride3q
    cmp                  wd, 8
    jg .v_w16
    je .v_w8
.v_w4:
    movd                xm0, [srcq+strideq*0]
    vpbroadcastd         m1, [srcq+strideq*2]
    vpbroadcastd        xm2, [srcq+strideq*1]
    vpbroadcastd         m3, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    vpblendd             m1, m1, m0, 0x01 ; 0 2 2 _   2 _ _ _
    vpblendd             m3, m3, m2, 0x03 ; 1 1 3 3   3 3 _ _
    vpbroadcastd         m0, [srcq+strideq*0]
    vpbroadcastd         m2, [srcq+strideq*1]
    vpblendd             m1, m1, m0, 0x68 ; 0 2 2 4   2 4 4 _
    vpbroadcastd         m0, [srcq+strideq*2]
    vbroadcasti128       m6, [deint_shuf4]
    vpblendd             m3, m3, m2, 0xc0 ; 1 1 3 3   3 3 5 5
    vpblendd             m2, m3, m1, 0x55 ; 0 1 2 3   2 3 4 5
    vpblendd             m3, m3, m1, 0xaa ; 1 2 3 4   3 4 5 _
    punpcklbw            m1, m2, m3       ; 01  12    23  34
    vpblendd             m3, m3, m0, 0x80 ; 1 2 3 4   3 4 5 6
    punpckhbw            m2, m3           ; 23  34    45  56
.v_w4_loop:
    pinsrd              xm0, [srcq+stride3q ], 1
    lea                srcq, [srcq+strideq*4]
    vpbroadcastd         m3, [srcq+strideq*0]
    vpbroadcastd         m4, [srcq+strideq*1]
    vpblendd             m3, m3, m4, 0x20 ; _ _ 8 _   8 9 _ _
    vpblendd             m3, m3, m0, 0x03 ; 6 7 8 _   8 9 _ _
    vpbroadcastd         m0, [srcq+strideq*2]
    vpblendd             m3, m3, m0, 0x40 ; 6 7 8 _   8 9 a _
    pshufb               m3, m6           ; 67  78    89  9a
    pmaddubsw            m4, m1, m8
    vperm2i128           m1, m2, m3, 0x21 ; 45  56    67  78
    pmaddubsw            m2, m9
    paddw                m4, m2
    mova                 m2, m3
    pmaddubsw            m3, m11
    paddw                m3, m4
    pmaddubsw            m4, m1, m10
    paddw                m3, m4
    pmulhrsw             m3, m7
    mova             [tmpq], m3
    add                tmpq, 32
    sub                  hd, 4
    jg .v_w4_loop
    RET
.v_w8:
    movq                xm1, [srcq+strideq*0]
    vpbroadcastq         m4, [srcq+strideq*1]
    vpbroadcastq         m2, [srcq+strideq*2]
    vpbroadcastq         m5, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    vpbroadcastq         m3, [srcq+strideq*0]
    vpbroadcastq         m6, [srcq+strideq*1]
    vpbroadcastq         m0, [srcq+strideq*2]
    vpblendd             m1, m1, m4, 0x30
    vpblendd             m4, m4, m2, 0x30
    punpcklbw            m1, m4 ; 01 12
    vpblendd             m2, m2, m5, 0x30
    vpblendd             m5, m5, m3, 0x30
    punpcklbw            m2, m5 ; 23 34
    vpblendd             m3, m3, m6, 0x30
    vpblendd             m6, m6, m0, 0x30
    punpcklbw            m3, m6 ; 45 56
.v_w8_loop:
    vpbroadcastq         m4, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    pmaddubsw            m5, m2, m9  ; a1
    pmaddubsw            m6, m2, m8  ; b0
    vpblendd             m2, m0, m4, 0x30
    vpbroadcastq         m0, [srcq+strideq*0]
    vpblendd             m4, m4, m0, 0x30
    punpcklbw            m2, m4      ; 67 78
    pmaddubsw            m1, m8      ; a0
    pmaddubsw            m4, m3, m9  ; b1
    paddw                m5, m1
    mova                 m1, m3
    pmaddubsw            m3, m10     ; a2
    paddw                m6, m4
    paddw                m5, m3
    vpbroadcastq         m4, [srcq+strideq*1]
    vpblendd             m3, m0, m4, 0x30
    vpbroadcastq         m0, [srcq+strideq*2]
    vpblendd             m4, m4, m0, 0x30
    punpcklbw            m3, m4      ; 89 9a
    pmaddubsw            m4, m2, m11 ; a3
    paddw                m5, m4
    pmaddubsw            m4, m2, m10 ; b2
    paddw                m6, m4
    pmaddubsw            m4, m3, m11 ; b3
    paddw                m6, m4
    pmulhrsw             m5, m7
    pmulhrsw             m6, m7
    mova        [tmpq+32*0], m5
    mova        [tmpq+32*1], m6
    add                tmpq, 32*2
    sub                  hd, 4
    jg .v_w8_loop
    RET
.v_w16:
    lea                 r6d, [wq-16]
    mov                  r5, tmpq
    mov                  r7, srcq
    shl                 r6d, 4
    mov                 r6b, hb
.v_w16_loop0:
    vbroadcasti128       m4, [srcq+strideq*0]
    vbroadcasti128       m5, [srcq+strideq*1]
    lea                srcq, [srcq+strideq*2]
    vbroadcasti128       m0, [srcq+strideq*1]
    vbroadcasti128       m6, [srcq+strideq*0]
    lea                srcq, [srcq+strideq*2]
    vbroadcasti128       m1, [srcq+strideq*0]
    vbroadcasti128       m2, [srcq+strideq*1]
    lea                srcq, [srcq+strideq*2]
    vbroadcasti128       m3, [srcq+strideq*0]
    shufpd               m4, m4, m0, 0x0c
    shufpd               m5, m5, m1, 0x0c
    punpcklbw            m1, m4, m5 ; 01
    punpckhbw            m4, m5     ; 34
    shufpd               m6, m6, m2, 0x0c
    punpcklbw            m2, m5, m6 ; 12
    punpckhbw            m5, m6     ; 45
    shufpd               m0, m0, m3, 0x0c
    punpcklbw            m3, m6, m0 ; 23
    punpckhbw            m6, m0     ; 56
.v_w16_loop:
    vbroadcasti128      m12, [srcq+strideq*1]
    lea                srcq, [srcq+strideq*2]
    vbroadcasti128      m13, [srcq+strideq*0]
    pmaddubsw           m14, m1, m8  ; a0
    pmaddubsw           m15, m2, m8  ; b0
    mova                 m1, m3
    mova                 m2, m4
    pmaddubsw            m3, m9      ; a1
    pmaddubsw            m4, m9      ; b1
    paddw               m14, m3
    paddw               m15, m4
    mova                 m3, m5
    mova                 m4, m6
    pmaddubsw            m5, m10     ; a2
    pmaddubsw            m6, m10     ; b2
    paddw               m14, m5
    paddw               m15, m6
    shufpd               m6, m0, m12, 0x0d
    shufpd               m0, m12, m13, 0x0c
    punpcklbw            m5, m6, m0  ; 67
    punpckhbw            m6, m0      ; 78
    pmaddubsw           m12, m5, m11 ; a3
    pmaddubsw           m13, m6, m11 ; b3
    paddw               m14, m12
    paddw               m15, m13
    pmulhrsw            m14, m7
    pmulhrsw            m15, m7
    mova        [tmpq+wq*0], m14
    mova        [tmpq+wq*2], m15
    lea                tmpq, [tmpq+wq*4]
    sub                  hd, 2
    jg .v_w16_loop
    mov                  hb, r6b
    add                  r5, 32
    add                  r7, 16
    mov                tmpq, r5
    mov                srcq, r7
    sub                 r6d, 1<<8
    jg .v_w16_loop0
    RET
.hv:
    %assign stack_offset stack_offset - stack_size_padded
    WIN64_SPILL_XMM      16
    cmp                  wd, 4
    jg .hv_w8
    movzx               mxd, mxb
    dec                srcq
    mova                 m7, [subpel_h_shuf4]
    vpbroadcastd         m8, [r7+mxq*8+subpel_filters-prep_avx2+2]
    pmovzxbd             m9, [deint_shuf4]
    movzx               mxd, myb
    shr                 myd, 16
    cmp                  hd, 4
    cmove               myd, mxd
    vpbroadcastq         m0, [r7+myq*8+subpel_filters-prep_avx2]
    lea            stride3q, [strideq*3]
    sub                srcq, stride3q
    punpcklbw            m0, m0
    psraw                m0, 8 ; sign-extend
    vpbroadcastd        m10, [pw_8192]
    vpbroadcastd        m11, [pd_32]
    pshufd              m12, m0, q0000
    pshufd              m13, m0, q1111
    pshufd              m14, m0, q2222
    pshufd              m15, m0, q3333
    vpbroadcastq         m2, [srcq+strideq*0]
    vpbroadcastq         m4, [srcq+strideq*1]
    vpbroadcastq         m0, [srcq+strideq*2]
    vpbroadcastq         m5, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    vpbroadcastq         m3, [srcq+strideq*0]
    vpbroadcastq         m6, [srcq+strideq*1]
    vpbroadcastq         m1, [srcq+strideq*2]
    vpblendd             m2, m2, m4, 0xcc ; 0 1
    vpblendd             m0, m0, m5, 0xcc ; 2 3
    vpblendd             m3, m3, m6, 0xcc ; 4 5
    pshufb               m2, m7
    pshufb               m0, m7
    pshufb               m3, m7
    pshufb               m1, m7
    pmaddubsw            m2, m8
    pmaddubsw            m0, m8
    pmaddubsw            m3, m8
    pmaddubsw            m1, m8
    phaddw               m2, m0
    phaddw               m3, m1
    pmulhrsw             m2, m10
    pmulhrsw             m3, m10
    palignr              m4, m3, m2, 4
    punpcklwd            m1, m2, m4  ; 01 12
    punpckhwd            m2, m4      ; 23 34
    pshufd               m0, m3, q2121
    punpcklwd            m3, m0      ; 45 56
.hv_w4_loop:
    pmaddwd              m5, m1, m12 ; a0 b0
    pmaddwd              m6, m2, m12 ; c0 d0
    pmaddwd              m2, m13     ; a1 b1
    pmaddwd              m4, m3, m13 ; c1 d1
    mova                 m1, m3
    pmaddwd              m3, m14     ; a2 b2
    paddd                m5, m2
    vpbroadcastq         m2, [srcq+stride3q ]
    lea                srcq, [srcq+strideq*4]
    paddd                m6, m4
    paddd                m5, m3
    vpbroadcastq         m4, [srcq+strideq*0]
    vpbroadcastq         m3, [srcq+strideq*1]
    vpblendd             m2, m2, m4, 0xcc
    vpbroadcastq         m4, [srcq+strideq*2]
    vpblendd             m3, m3, m4, 0xcc
    pshufb               m2, m7
    pshufb               m3, m7
    pmaddubsw            m2, m8
    pmaddubsw            m3, m8
    phaddw               m2, m3
    pmulhrsw             m2, m10
    palignr              m3, m2, m0, 12
    mova                 m0, m2
    punpcklwd            m2, m3, m0  ; 67 78
    punpckhwd            m3, m0      ; 89 9a
    pmaddwd              m4, m2, m14 ; c2 d2
    paddd                m6, m11
    paddd                m5, m11
    paddd                m6, m4
    pmaddwd              m4, m2, m15 ; a3 b3
    paddd                m5, m4
    pmaddwd              m4, m3, m15 ; c3 d3
    paddd                m6, m4
    psrad                m5, 6
    psrad                m6, 6
    packssdw             m5, m6
    vpermd               m5, m9, m5
    mova             [tmpq], m5
    add                tmpq, 32
    sub                  hd, 4
    jg .hv_w4_loop
    RET
.hv_w8:
    shr                 mxd, 16
    sub                srcq, 3
    vpbroadcastd        m10, [r7+mxq*8+subpel_filters-prep_avx2+0]
    vpbroadcastd        m11, [r7+mxq*8+subpel_filters-prep_avx2+4]
    movzx               mxd, myb
    shr                 myd, 16
    cmp                  hd, 4
    cmove               myd, mxd
    vpbroadcastq         m0, [r7+myq*8+subpel_filters-prep_avx2]
    lea            stride3q, [strideq*3]
    sub                srcq, stride3q
    punpcklbw            m0, m0
    psraw                m0, 8 ; sign-extend
    pshufd              m12, m0, q0000
    pshufd              m13, m0, q1111
    pshufd              m14, m0, q2222
    pshufd              m15, m0, q3333
    lea                 r6d, [wq-8]
    mov                  r5, tmpq
    mov                  r7, srcq
    shl                 r6d, 5
    mov                 r6b, hb
.hv_w8_loop0:
    vbroadcasti128       m7, [subpel_h_shufA]
    vbroadcasti128       m8, [subpel_h_shufB]
    vbroadcasti128       m9, [subpel_h_shufC]
    movu                xm4,     [srcq+strideq*0]
    movu                xm5,     [srcq+strideq*1]
    lea                srcq,     [srcq+strideq*2]
    movu                xm6,     [srcq+strideq*0]
    vbroadcasti128       m0,     [srcq+strideq*1]
    lea                srcq,     [srcq+strideq*2]
    vpblendd             m4, m4, m0, 0xf0            ; 0 3
    vinserti128          m5, m5, [srcq+strideq*0], 1 ; 1 4
    vinserti128          m6, m6, [srcq+strideq*1], 1 ; 2 5
    lea                srcq,     [srcq+strideq*2]
    vinserti128          m0, m0, [srcq+strideq*0], 1 ; 3 6
    HV_H_W8              m4, m1, m2, m3, m7, m8, m9
    HV_H_W8              m5, m1, m2, m3, m7, m8, m9
    HV_H_W8              m6, m1, m2, m3, m7, m8, m9
    HV_H_W8              m0, m1, m2, m3, m7, m8, m9
    vpbroadcastd         m7, [pw_8192]
    vpermq               m4, m4, q3120
    vpermq               m5, m5, q3120
    vpermq               m6, m6, q3120
    pmulhrsw             m0, m7
    pmulhrsw             m4, m7
    pmulhrsw             m5, m7
    pmulhrsw             m6, m7
    vpermq               m7, m0, q3120
    punpcklwd            m1, m4, m5  ; 01
    punpckhwd            m4, m5      ; 34
    punpcklwd            m2, m5, m6  ; 12
    punpckhwd            m5, m6      ; 45
    punpcklwd            m3, m6, m7  ; 23
    punpckhwd            m6, m7      ; 56
.hv_w8_loop:
    vextracti128     [tmpq], m0, 1 ; not enough registers
    movu                xm0,     [srcq+strideq*1]
    lea                srcq,     [srcq+strideq*2]
    vinserti128          m0, m0, [srcq+strideq*0], 1 ; 7 8
    pmaddwd              m8, m1, m12 ; a0
    pmaddwd              m9, m2, m12 ; b0
    mova                 m1, m3
    mova                 m2, m4
    pmaddwd              m3, m13     ; a1
    pmaddwd              m4, m13     ; b1
    paddd                m8, m3
    paddd                m9, m4
    mova                 m3, m5
    mova                 m4, m6
    pmaddwd              m5, m14     ; a2
    pmaddwd              m6, m14     ; b2
    paddd                m8, m5
    paddd                m9, m6
    vbroadcasti128       m6, [subpel_h_shufB]
    vbroadcasti128       m7, [subpel_h_shufC]
    vbroadcasti128       m5, [subpel_h_shufA]
    HV_H_W8              m0, m5, m6, m7, m5, m6, m7
    vpbroadcastd         m5, [pw_8192]
    vpbroadcastd         m7, [pd_32]
    vbroadcasti128       m6, [tmpq]
    pmulhrsw             m0, m5
    paddd                m8, m7
    paddd                m9, m7
    vpermq               m7, m0, q3120    ; 7 8
    shufpd               m6, m6, m7, 0x04 ; 6 7
    punpcklwd            m5, m6, m7  ; 67
    punpckhwd            m6, m7      ; 78
    pmaddwd              m7, m5, m15 ; a3
    paddd                m8, m7
    pmaddwd              m7, m6, m15 ; b3
    paddd                m7, m9
    psrad                m8, 6
    psrad                m7, 6
    packssdw             m8, m7
    vpermq               m7, m8, q3120
    mova         [tmpq+wq*0], xm7
    vextracti128 [tmpq+wq*2], m7, 1
    lea                tmpq, [tmpq+wq*4]
    sub                  hd, 2
    jg .hv_w8_loop
    mov                  hb, r6b
    add                  r5, 16
    add                  r7, 8
    mov                tmpq, r5
    mov                srcq, r7
    sub                 r6d, 1<<8
    jg .hv_w8_loop0
    RET

%macro WARP_V 5 ; dst, 02, 46, 13, 57
    ; Can be done using gathers, but that's terribly slow on many CPU:s
    lea               tmp1d, [myq+deltaq*4]
    lea               tmp2d, [myq+deltaq*1]
    shr                 myd, 10
    shr               tmp1d, 10
    movq                xm8, [filterq+myq  *8]
    vinserti128          m8, [filterq+tmp1q*8], 1 ; a e
    lea               tmp1d, [tmp2q+deltaq*4]
    lea                 myd, [tmp2q+deltaq*1]
    shr               tmp2d, 10
    shr               tmp1d, 10
    movq                xm0, [filterq+tmp2q*8]
    vinserti128          m0, [filterq+tmp1q*8], 1 ; b f
    lea               tmp1d, [myq+deltaq*4]
    lea               tmp2d, [myq+deltaq*1]
    shr                 myd, 10
    shr               tmp1d, 10
    movq                xm9, [filterq+myq  *8]
    vinserti128          m9, [filterq+tmp1q*8], 1 ; c g
    lea               tmp1d, [tmp2q+deltaq*4]
    lea                 myd, [tmp2q+gammaq]       ; my += gamma
    shr               tmp2d, 10
    shr               tmp1d, 10
    punpcklwd            m8, m0
    movq                xm0, [filterq+tmp2q*8]
    vinserti128          m0, [filterq+tmp1q*8], 1 ; d h
    punpcklwd            m0, m9, m0
    punpckldq            m9, m8, m0
    punpckhdq            m0, m8, m0
    punpcklbw            m8, m11, m9 ; a0 a2 b0 b2 c0 c2 d0 d2 << 8
    punpckhbw            m9, m11, m9 ; a4 a6 b4 b6 c4 c6 d4 d6 << 8
    pmaddwd             m%2, m8
    pmaddwd              m9, m%3
    punpcklbw            m8, m11, m0 ; a1 a3 b1 b3 c1 c3 d1 d3 << 8
    punpckhbw            m0, m11, m0 ; a5 a7 b5 b7 c5 c7 d5 d7 << 8
    pmaddwd              m8, m%4
    pmaddwd              m0, m%5
    paddd               m%2, m9
    paddd                m0, m8
    paddd               m%1, m0, m%2
%endmacro

cglobal warp_affine_8x8t, 0, 14, 0, tmp, ts
%if WIN64
    sub                 rsp, 0xa0
%endif
    call mangle(private_prefix %+ _warp_affine_8x8_avx2).main
.loop:
    psrad                m7, 13
    psrad                m0, 13
    packssdw             m7, m0
    pmulhrsw             m7, m14 ; (x + (1 << 6)) >> 7
    vpermq               m7, m7, q3120
    mova         [tmpq+tsq*0], xm7
    vextracti128 [tmpq+tsq*2], m7, 1
    dec                 r4d
    jz   mangle(private_prefix %+ _warp_affine_8x8_avx2).end
    call mangle(private_prefix %+ _warp_affine_8x8_avx2).main2
    lea                tmpq, [tmpq+tsq*4]
    jmp .loop

cglobal warp_affine_8x8, 0, 14, 0, dst, ds, src, ss, abcd, mx, tmp2, alpha, \
                                   beta, filter, tmp1, delta, my, gamma
%if WIN64
    sub                 rsp, 0xa0
    %assign xmm_regs_used 16
    %assign stack_size_padded 0xa0
    %assign stack_offset stack_offset+stack_size_padded
%endif
    call .main
    jmp .start
.loop:
    call .main2
    lea                dstq, [dstq+dsq*2]
.start:
    psrad                m7, 18
    psrad                m0, 18
    packusdw             m7, m0
    pavgw                m7, m11 ; (x + (1 << 10)) >> 11
    vextracti128        xm0, m7, 1
    packuswb            xm7, xm0
    pshufd              xm7, xm7, q3120
    movq       [dstq+dsq*0], xm7
    movhps     [dstq+dsq*1], xm7
    dec                 r4d
    jg .loop
.end:
    RET
ALIGN function_align
.main:
    ; Stack args offset by one (r4m -> r5m etc.) due to call
%if WIN64
    mov               abcdq, r5m
    mov                 mxd, r6m
    movaps [rsp+stack_offset+0x10], xmm6
    movaps [rsp+stack_offset+0x20], xmm7
    movaps       [rsp+0x28], xmm8
    movaps       [rsp+0x38], xmm9
    movaps       [rsp+0x48], xmm10
    movaps       [rsp+0x58], xmm11
    movaps       [rsp+0x68], xmm12
    movaps       [rsp+0x78], xmm13
    movaps       [rsp+0x88], xmm14
    movaps       [rsp+0x98], xmm15
%endif
    movsx            alphad, word [abcdq+2*0]
    movsx             betad, word [abcdq+2*1]
    mova                m12, [warp_8x8_shufA]
    mova                m13, [warp_8x8_shufB]
    vpbroadcastd        m14, [pw_8192]
    vpbroadcastd        m15, [pd_32768]
    pxor                m11, m11
    lea             filterq, [mc_warp_filter]
    lea               tmp1q, [ssq*3+3]
    add                 mxd, 512+(64<<10)
    lea               tmp2d, [alphaq*3]
    sub                srcq, tmp1q    ; src -= src_stride*3 + 3
    sub               betad, tmp2d    ; beta -= alpha*3
    mov                 myd, r7m
    call .h
    psrld                m1, m0, 16
    call .h
    psrld                m4, m0, 16
    call .h
    pblendw              m1, m0, 0xaa ; 02
    call .h
    pblendw              m4, m0, 0xaa ; 13
    call .h
    psrld                m2, m1, 16
    pblendw              m2, m0, 0xaa ; 24
    call .h
    psrld                m5, m4, 16
    pblendw              m5, m0, 0xaa ; 35
    call .h
    psrld                m3, m2, 16
    pblendw              m3, m0, 0xaa ; 46
    movsx            deltad, word [abcdq+2*2]
    movsx            gammad, word [abcdq+2*3]
    add                 myd, 512+(64<<10)
    mov                 r4d, 4
    lea               tmp1d, [deltaq*3]
    sub              gammad, tmp1d    ; gamma -= delta*3
.main2:
    call .h
    psrld                m6, m5, 16
    pblendw              m6, m0, 0xaa ; 57
    WARP_V                7, 1, 3, 4, 6
    call .h
    mova                 m1, m2
    mova                 m2, m3
    psrld                m3, 16
    pblendw              m3, m0, 0xaa ; 68
    WARP_V                0, 4, 6, 1, 3
    mova                 m4, m5
    mova                 m5, m6
    ret
ALIGN function_align
.h:
    lea               tmp1d, [mxq+alphaq*4]
    lea               tmp2d, [mxq+alphaq*1]
    vbroadcasti128      m10, [srcq]
    shr                 mxd, 10
    shr               tmp1d, 10
    movq                xm8, [filterq+mxq  *8]
    vinserti128          m8, [filterq+tmp1q*8], 1
    lea               tmp1d, [tmp2q+alphaq*4]
    lea                 mxd, [tmp2q+alphaq*1]
    shr               tmp2d, 10
    shr               tmp1d, 10
    movq                xm0, [filterq+tmp2q*8]
    vinserti128          m0, [filterq+tmp1q*8], 1
    lea               tmp1d, [mxq+alphaq*4]
    lea               tmp2d, [mxq+alphaq*1]
    shr                 mxd, 10
    shr               tmp1d, 10
    movq                xm9, [filterq+mxq  *8]
    vinserti128          m9, [filterq+tmp1q*8], 1
    lea               tmp1d, [tmp2q+alphaq*4]
    lea                 mxd, [tmp2q+betaq] ; mx += beta
    shr               tmp2d, 10
    shr               tmp1d, 10
    punpcklqdq           m8, m0  ; 0 1   4 5
    movq                xm0, [filterq+tmp2q*8]
    vinserti128          m0, [filterq+tmp1q*8], 1
    punpcklqdq           m9, m0  ; 2 3   6 7
    pshufb               m0, m10, m12
    pmaddubsw            m0, m8
    pshufb              m10, m13
    pmaddubsw           m10, m9
    add                srcq, ssq
    phaddw               m0, m10
    pmaddwd              m0, m14 ; 17-bit intermediate, upshifted by 13
    paddd                m0, m15 ; rounded 14-bit result in upper 16 bits of dword
    ret

%macro BIDIR_FN 1 ; op
    %1                    0
    lea            stride3q, [strideq*3]
    jmp                  wq
.w4:
    vextracti128        xm1, m0, 1
    movd   [dstq          ], xm0
    pextrd [dstq+strideq*1], xm0, 1
    movd   [dstq+strideq*2], xm1
    pextrd [dstq+stride3q ], xm1, 1
    cmp                  hd, 4
    je .ret
    lea                dstq, [dstq+strideq*4]
    pextrd [dstq          ], xm0, 2
    pextrd [dstq+strideq*1], xm0, 3
    pextrd [dstq+strideq*2], xm1, 2
    pextrd [dstq+stride3q ], xm1, 3
    cmp                  hd, 8
    je .ret
    %1                    2
    lea                dstq, [dstq+strideq*4]
    vextracti128        xm1, m0, 1
    movd   [dstq          ], xm0
    pextrd [dstq+strideq*1], xm0, 1
    movd   [dstq+strideq*2], xm1
    pextrd [dstq+stride3q], xm1, 1
    lea                dstq, [dstq+strideq*4]
    pextrd [dstq          ], xm0, 2
    pextrd [dstq+strideq*1], xm0, 3
    pextrd [dstq+strideq*2], xm1, 2
    pextrd [dstq+stride3q ], xm1, 3
.ret:
    RET
.w8_loop:
    %1_INC_PTR            2
    %1                    0
    lea                dstq, [dstq+strideq*4]
.w8:
    vextracti128        xm1, m0, 1
    movq   [dstq          ], xm0
    movq   [dstq+strideq*1], xm1
    movhps [dstq+strideq*2], xm0
    movhps [dstq+stride3q ], xm1
    sub                  hd, 4
    jg .w8_loop
    RET
.w16_loop:
    %1_INC_PTR            4
    %1                    0
    lea                dstq, [dstq+strideq*4]
.w16:
    vpermq               m0, m0, q3120
    mova         [dstq          ], xm0
    vextracti128 [dstq+strideq*1], m0, 1
    %1                    2
    vpermq               m0, m0, q3120
    mova         [dstq+strideq*2], xm0
    vextracti128 [dstq+stride3q ], m0, 1
    sub                  hd, 4
    jg .w16_loop
    RET
.w32_loop:
    %1_INC_PTR            4
    %1                    0
    lea                dstq, [dstq+strideq*2]
.w32:
    vpermq               m0, m0, q3120
    mova             [dstq], m0
    %1                    2
    vpermq               m0, m0, q3120
    mova   [dstq+strideq*1], m0
    sub                  hd, 2
    jg .w32_loop
    RET
.w64_loop:
    %1_INC_PTR            4
    %1                    0
    add                dstq, strideq
.w64:
    vpermq               m0, m0, q3120
    mova             [dstq], m0
    %1                    2
    vpermq               m0, m0, q3120
    mova          [dstq+32], m0
    dec                  hd
    jg .w64_loop
    RET
.w128_loop:
    %1                    0
    add                dstq, strideq
.w128:
    vpermq               m0, m0, q3120
    mova        [dstq+0*32], m0
    %1                    2
    vpermq               m0, m0, q3120
    mova        [dstq+1*32], m0
    %1_INC_PTR            8
    %1                   -4
    vpermq               m0, m0, q3120
    mova        [dstq+2*32], m0
    %1                   -2
    vpermq               m0, m0, q3120
    mova        [dstq+3*32], m0
    dec                  hd
    jg .w128_loop
    RET
%endmacro

%macro AVG 1 ; src_offset
    mova                 m0, [tmp1q+(%1+0)*mmsize]
    paddw                m0, [tmp2q+(%1+0)*mmsize]
    mova                 m1, [tmp1q+(%1+1)*mmsize]
    paddw                m1, [tmp2q+(%1+1)*mmsize]
    pmulhrsw             m0, m2
    pmulhrsw             m1, m2
    packuswb             m0, m1
%endmacro

%macro AVG_INC_PTR 1
    add               tmp1q, %1*mmsize
    add               tmp2q, %1*mmsize
%endmacro

cglobal avg, 4, 7, 3, dst, stride, tmp1, tmp2, w, h, stride3
    lea                  r6, [avg_avx2_table]
    tzcnt                wd, wm
    movifnidn            hd, hm
    movsxd               wq, dword [r6+wq*4]
    vpbroadcastd         m2, [pw_1024+r6-avg_avx2_table]
    add                  wq, r6
    BIDIR_FN            AVG

%macro W_AVG 1 ; src_offset
    ; (a * weight + b * (16 - weight) + 128) >> 8
    ; = ((a - b) * weight + (b << 4) + 128) >> 8
    ; = ((((a - b) * ((weight-16) << 12)) >> 16) + a + 8) >> 4
    ; = ((((b - a) * (-weight     << 12)) >> 16) + b + 8) >> 4
    mova                 m0,     [tmp1q+(%1+0)*mmsize]
    psubw                m2, m0, [tmp2q+(%1+0)*mmsize]
    mova                 m1,     [tmp1q+(%1+1)*mmsize]
    psubw                m3, m1, [tmp2q+(%1+1)*mmsize]
    pmulhw               m2, m4
    pmulhw               m3, m4
    paddw                m0, m2
    paddw                m1, m3
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
%endmacro

%define W_AVG_INC_PTR AVG_INC_PTR

cglobal w_avg, 4, 7, 6, dst, stride, tmp1, tmp2, w, h, stride3
    lea                  r6, [w_avg_avx2_table]
    tzcnt                wd, wm
    movifnidn            hd, hm
    vpbroadcastw         m4, r6m ; weight
    movsxd               wq, dword [r6+wq*4]
    vpbroadcastd         m5, [pw_2048+r6-w_avg_avx2_table]
    psllw                m4, 12 ; (weight-16) << 12 when interpreted as signed
    add                  wq, r6
    cmp           dword r6m, 7
    jg .weight_gt7
    mov                  r6, tmp1q
    pxor                 m0, m0
    mov               tmp1q, tmp2q
    psubw                m4, m0, m4 ; -weight
    mov               tmp2q, r6
.weight_gt7:
    BIDIR_FN          W_AVG

%macro MASK 1 ; src_offset
    ; (a * m + b * (64 - m) + 512) >> 10
    ; = ((a - b) * m + (b << 6) + 512) >> 10
    ; = ((((b - a) * (-m << 10)) >> 16) + b + 8) >> 4
    vpermq               m3,     [maskq+(%1+0)*(mmsize/2)], q3120
    mova                 m0,     [tmp2q+(%1+0)*mmsize]
    psubw                m1, m0, [tmp1q+(%1+0)*mmsize]
    psubb                m3, m4, m3
    paddw                m1, m1     ; (b - a) << 1
    paddb                m3, m3
    punpcklbw            m2, m4, m3 ; -m << 9
    pmulhw               m1, m2
    paddw                m0, m1
    mova                 m1,     [tmp2q+(%1+1)*mmsize]
    psubw                m2, m1, [tmp1q+(%1+1)*mmsize]
    paddw                m2, m2
    punpckhbw            m3, m4, m3
    pmulhw               m2, m3
    paddw                m1, m2
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
%endmacro

%macro MASK_INC_PTR 1
    add               maskq, %1*mmsize/2
    add               tmp1q, %1*mmsize
    add               tmp2q, %1*mmsize
%endmacro

cglobal mask, 4, 8, 6, dst, stride, tmp1, tmp2, w, h, mask, stride3
    lea                  r7, [mask_avx2_table]
    tzcnt                wd, wm
    movifnidn            hd, hm
    mov               maskq, maskmp
    movsxd               wq, dword [r7+wq*4]
    pxor                 m4, m4
    vpbroadcastd         m5, [pw_2048+r7-mask_avx2_table]
    add                  wq, r7
    BIDIR_FN           MASK

%macro W_MASK 2-3 0 ; src_offset, mask_out, 4:4:4
    mova                 m0, [tmp1q+(%1+0)*mmsize]
    mova                 m1, [tmp2q+(%1+0)*mmsize]
    psubw                m1, m0
    pabsw               m%2, m1
    psubusw             m%2, m6, m%2
    psrlw               m%2, 8 ; 64 - m
    psllw                m2, m%2, 10
    pmulhw               m1, m2
    paddw                m0, m1
    mova                 m1, [tmp1q+(%1+1)*mmsize]
    mova                 m2, [tmp2q+(%1+1)*mmsize]
    psubw                m2, m1
    pabsw                m3, m2
    psubusw              m3, m6, m3
    psrlw                m3, 8
%if %3
    packuswb            m%2, m3
    psubb               m%2, m5, m%2
    vpermq              m%2, m%2, q3120
%else
    phaddw              m%2, m3
%endif
    psllw                m3, 10
    pmulhw               m2, m3
    paddw                m1, m2
    pmulhrsw             m0, m7
    pmulhrsw             m1, m7
    packuswb             m0, m1
%endmacro

cglobal w_mask_420, 4, 8, 14, dst, stride, tmp1, tmp2, w, h, mask, stride3
%define base r7-w_mask_420_avx2_table
    lea                  r7, [w_mask_420_avx2_table]
    tzcnt                wd, wm
    movifnidn            hd, hm
    mov               maskq, maskmp
    movd                xm0, r7m ; sign
    movsxd               wq, dword [r7+wq*4]
    vpbroadcastd         m6, [base+pw_6903] ; ((64 - 38) << 8) + 255 - 8
    vpbroadcastd         m7, [base+pw_2048]
    movd                xm8, [base+pw_258]  ; 64 * 4 + 2
    pmovzxbd             m9, [base+deint_shuf4]
    psubw               xm8, xm0
    add                  wq, r7
    vpbroadcastw         m8, xm8
    W_MASK                0, 4
    lea            stride3q, [strideq*3]
    jmp                  wq
.w4:
    vextracti128        xm1, m0, 1
    movd   [dstq          ], xm0
    pextrd [dstq+strideq*1], xm0, 1
    movd   [dstq+strideq*2], xm1
    pextrd [dstq+stride3q ], xm1, 1
    cmp                  hd, 8
    jl .w4_end
    lea                dstq, [dstq+strideq*4]
    pextrd [dstq          ], xm0, 2
    pextrd [dstq+strideq*1], xm0, 3
    pextrd [dstq+strideq*2], xm1, 2
    pextrd [dstq+stride3q ], xm1, 3
    jg .w4_h16
.w4_end:
    vextracti128        xm0, m4, 1
    vpblendd            xm1, xm4, xm0, 0x05
    vpblendd            xm4, xm4, xm0, 0x0a
    pshufd              xm1, xm1, q2301
    psubw               xm4, xm8, xm4
    psubw               xm4, xm1
    psrlw               xm4, 2
    packuswb            xm4, xm4
    movq            [maskq], xm4
    RET
.w4_h16:
    W_MASK                2, 5
    lea                dstq, [dstq+strideq*4]
    phaddd               m4, m5
    vextracti128        xm1, m0, 1
    psubw                m4, m8, m4
    psrlw                m4, 2
    vpermd               m4, m9, m4
    vextracti128        xm5, m4, 1
    packuswb            xm4, xm5
    movd   [dstq          ], xm0
    pextrd [dstq+strideq*1], xm0, 1
    movd   [dstq+strideq*2], xm1
    pextrd [dstq+stride3q], xm1, 1
    lea                dstq, [dstq+strideq*4]
    pextrd [dstq          ], xm0, 2
    pextrd [dstq+strideq*1], xm0, 3
    pextrd [dstq+strideq*2], xm1, 2
    pextrd [dstq+stride3q ], xm1, 3
    mova            [maskq], xm4
    RET
.w8_loop:
    add               tmp1q, 2*32
    add               tmp2q, 2*32
    W_MASK                0, 4
    lea                dstq, [dstq+strideq*4]
    add               maskq, 8
.w8:
    vextracti128        xm2, m4, 1
    vextracti128        xm1, m0, 1
    psubw               xm4, xm8, xm4
    psubw               xm4, xm2
    psrlw               xm4, 2
    packuswb            xm4, xm4
    movq   [dstq          ], xm0
    movq   [dstq+strideq*1], xm1
    movhps [dstq+strideq*2], xm0
    movhps [dstq+stride3q ], xm1
    movq            [maskq], xm4
    sub                  hd, 4
    jg .w8_loop
    RET
.w16_loop:
    add               tmp1q, 4*32
    add               tmp2q, 4*32
    W_MASK                0, 4
    lea                dstq, [dstq+strideq*4]
    add               maskq, 16
.w16:
    vpermq               m0, m0, q3120
    mova         [dstq          ], xm0
    vextracti128 [dstq+strideq*1], m0, 1
    W_MASK                2, 5
    punpckhqdq           m1, m4, m5
    punpcklqdq           m4, m5
    psubw                m1, m8, m1
    psubw                m1, m4
    psrlw                m1, 2
    vpermq               m0, m0, q3120
    packuswb             m1, m1
    vpermd               m1, m9, m1
    mova         [dstq+strideq*2], xm0
    vextracti128 [dstq+stride3q ], m0, 1
    mova            [maskq], xm1
    sub                  hd, 4
    jg .w16_loop
    RET
.w32_loop:
    add               tmp1q, 4*32
    add               tmp2q, 4*32
    W_MASK                0, 4
    lea                dstq, [dstq+strideq*2]
    add               maskq, 16
.w32:
    vpermq               m0, m0, q3120
    mova             [dstq], m0
    W_MASK                2, 5
    psubw                m4, m8, m4
    psubw                m4, m5
    psrlw                m4, 2
    vpermq               m0, m0, q3120
    packuswb             m4, m4
    vpermd               m4, m9, m4
    mova   [dstq+strideq*1], m0
    mova            [maskq], xm4
    sub                  hd, 2
    jg .w32_loop
    RET
.w64_loop_even:
    psubw               m10, m8, m4
    psubw               m11, m8, m5
    dec                  hd
.w64_loop:
    add               tmp1q, 4*32
    add               tmp2q, 4*32
    W_MASK                0, 4
    add                dstq, strideq
.w64:
    vpermq               m0, m0, q3120
    mova             [dstq], m0
    W_MASK                2, 5
    vpermq               m0, m0, q3120
    mova          [dstq+32], m0
    test                 hd, 1
    jz .w64_loop_even
    psubw                m4, m10, m4
    psubw                m5, m11, m5
    psrlw                m4, 2
    psrlw                m5, 2
    packuswb             m4, m5
    vpermd               m4, m9, m4
    mova            [maskq], m4
    add               maskq, 32
    dec                  hd
    jg .w64_loop
    RET
.w128_loop_even:
    psubw               m12, m8, m4
    psubw               m13, m8, m5
    dec                  hd
.w128_loop:
    W_MASK                0, 4
    add                dstq, strideq
.w128:
    vpermq               m0, m0, q3120
    mova        [dstq+0*32], m0
    W_MASK                2, 5
    vpermq               m0, m0, q3120
    mova        [dstq+1*32], m0
    add               tmp1q, 8*32
    add               tmp2q, 8*32
    test                 hd, 1
    jz .w128_even
    psubw                m4, m10, m4
    psubw                m5, m11, m5
    psrlw                m4, 2
    psrlw                m5, 2
    packuswb             m4, m5
    vpermd               m4, m9, m4
    mova            [maskq], m4
    jmp .w128_odd
.w128_even:
    psubw               m10, m8, m4
    psubw               m11, m8, m5
.w128_odd:
    W_MASK               -4, 4
    vpermq               m0, m0, q3120
    mova        [dstq+2*32], m0
    W_MASK               -2, 5
    vpermq               m0, m0, q3120
    mova        [dstq+3*32], m0
    test                 hd, 1
    jz .w128_loop_even
    psubw                m4, m12, m4
    psubw                m5, m13, m5
    psrlw                m4, 2
    psrlw                m5, 2
    packuswb             m4, m5
    vpermd               m4, m9, m4
    mova         [maskq+32], m4
    add               maskq, 64
    dec                  hd
    jg .w128_loop
    RET

cglobal w_mask_422, 4, 8, 11, dst, stride, tmp1, tmp2, w, h, mask, stride3
%define base r7-w_mask_422_avx2_table
    lea                  r7, [w_mask_422_avx2_table]
    tzcnt                wd, wm
    movifnidn            hd, hm
    mov               maskq, maskmp
    movd                xm0, r7m ; sign
    pxor                 m9, m9
    movsxd               wq, dword [r7+wq*4]
    vpbroadcastd         m6, [base+pw_6903] ; ((64 - 38) << 8) + 255 - 8
    vpbroadcastd         m7, [base+pw_2048]
    pmovzxbd            m10, [base+deint_shuf4]
    add                  wq, r7
    psrlw               xm8, xm7, 4 ; pw_128
    psubb               xm8, xm0
    vpbroadcastb         m8, xm8
    W_MASK                0, 4
    lea            stride3q, [strideq*3]
    jmp                  wq
.w4:
    vextracti128        xm1, m0, 1
    movd   [dstq+strideq*0], xm0
    pextrd [dstq+strideq*1], xm0, 1
    movd   [dstq+strideq*2], xm1
    pextrd [dstq+stride3q ], xm1, 1
    cmp                  hd, 8
    jl .w4_end
    lea                dstq, [dstq+strideq*4]
    pextrd [dstq+strideq*0], xm0, 2
    pextrd [dstq+strideq*1], xm0, 3
    pextrd [dstq+strideq*2], xm1, 2
    pextrd [dstq+stride3q ], xm1, 3
    jg .w4_h16
.w4_end:
    vextracti128        xm5, m4, 1
    packuswb            xm4, xm5
    psubb               xm5, xm8, xm4
    pavgb               xm5, xm9
    pshufd              xm5, xm5, q3120
    mova            [maskq], xm5
    RET
.w4_h16:
    W_MASK                2, 5
    lea                dstq, [dstq+strideq*4]
    packuswb             m4, m5
    psubb                m5, m8, m4
    pavgb                m5, m9
    vpermd               m5, m10, m5
    vextracti128        xm1, m0, 1
    movd   [dstq+strideq*0], xm0
    pextrd [dstq+strideq*1], xm0, 1
    movd   [dstq+strideq*2], xm1
    pextrd [dstq+stride3q ], xm1, 1
    lea                dstq, [dstq+strideq*4]
    pextrd [dstq+strideq*0], xm0, 2
    pextrd [dstq+strideq*1], xm0, 3
    pextrd [dstq+strideq*2], xm1, 2
    pextrd [dstq+stride3q ], xm1, 3
    mova            [maskq], m5
    RET
.w8_loop:
    add               tmp1q, 32*2
    add               tmp2q, 32*2
    W_MASK                0, 4
    lea                dstq, [dstq+strideq*4]
    add               maskq, 16
.w8:
    vextracti128        xm5, m4, 1
    vextracti128        xm1, m0, 1
    packuswb            xm4, xm5
    psubb               xm5, xm8, xm4
    pavgb               xm5, xm9
    pshufd              xm5, xm5, q3120
    movq   [dstq+strideq*0], xm0
    movq   [dstq+strideq*1], xm1
    movhps [dstq+strideq*2], xm0
    movhps [dstq+stride3q ], xm1
    mova            [maskq], xm5
    sub                  hd, 4
    jg .w8_loop
    RET
.w16_loop:
    add               tmp1q, 32*4
    add               tmp2q, 32*4
    W_MASK                0, 4
    lea                dstq, [dstq+strideq*4]
    add               maskq, 32
.w16:
    vpermq               m0, m0, q3120
    mova         [dstq+strideq*0], xm0
    vextracti128 [dstq+strideq*1], m0, 1
    W_MASK                2, 5
    packuswb             m4, m5
    psubb                m5, m8, m4
    pavgb                m5, m9
    vpermq               m0, m0, q3120
    vpermd               m5, m10, m5
    mova         [dstq+strideq*2], xm0
    vextracti128 [dstq+stride3q ], m0, 1
    mova            [maskq], m5
    sub                  hd, 4
    jg .w16_loop
    RET
.w32_loop:
    add               tmp1q, 32*4
    add               tmp2q, 32*4
    W_MASK                0, 4
    lea                dstq, [dstq+strideq*2]
    add               maskq, 32
.w32:
    vpermq               m0, m0, q3120
    mova   [dstq+strideq*0], m0
    W_MASK                2, 5
    packuswb             m4, m5
    psubb                m5, m8, m4
    pavgb                m5, m9
    vpermq               m0, m0, q3120
    vpermd               m5, m10, m5
    mova   [dstq+strideq*1], m0
    mova            [maskq], m5
    sub                  hd, 2
    jg .w32_loop
    RET
.w64_loop:
    add               tmp1q, 32*4
    add               tmp2q, 32*4
    W_MASK                0, 4
    add                dstq, strideq
    add               maskq, 32
.w64:
    vpermq               m0, m0, q3120
    mova        [dstq+32*0], m0
    W_MASK                2, 5
    packuswb             m4, m5
    psubb                m5, m8, m4
    pavgb                m5, m9
    vpermq               m0, m0, q3120
    vpermd               m5, m10, m5
    mova        [dstq+32*1], m0
    mova            [maskq], m5
    dec                  hd
    jg .w64_loop
    RET
.w128_loop:
    add               tmp1q, 32*8
    add               tmp2q, 32*8
    W_MASK                0, 4
    add                dstq, strideq
    add               maskq, 32*2
.w128:
    vpermq               m0, m0, q3120
    mova        [dstq+32*0], m0
    W_MASK                2, 5
    packuswb             m4, m5
    psubb                m5, m8, m4
    pavgb                m5, m9
    vpermq               m0, m0, q3120
    vpermd               m5, m10, m5
    mova        [dstq+32*1], m0
    mova       [maskq+32*0], m5
    W_MASK                4, 4
    vpermq               m0, m0, q3120
    mova        [dstq+32*2], m0
    W_MASK                6, 5
    packuswb             m4, m5
    psubb                m5, m8, m4
    pavgb                m5, m9
    vpermq               m0, m0, q3120
    vpermd               m5, m10, m5
    mova        [dstq+32*3], m0
    mova       [maskq+32*1], m5
    dec                  hd
    jg .w128_loop
    RET

cglobal w_mask_444, 4, 8, 8, dst, stride, tmp1, tmp2, w, h, mask, stride3
%define base r7-w_mask_444_avx2_table
    lea                  r7, [w_mask_444_avx2_table]
    tzcnt                wd, wm
    movifnidn            hd, hm
    mov               maskq, maskmp
    movsxd               wq, dword [r7+wq*4]
    vpbroadcastd         m6, [base+pw_6903] ; ((64 - 38) << 8) + 255 - 8
    vpbroadcastd         m7, [base+pw_2048]
    vpbroadcastd         m5, [base+pb_64]
    add                  wq, r7
    W_MASK                0, 4, 1
    lea            stride3q, [strideq*3]
    jmp                  wq
.w4:
    vextracti128        xm1, m0, 1
    movd   [dstq+strideq*0], xm0
    pextrd [dstq+strideq*1], xm0, 1
    movd   [dstq+strideq*2], xm1
    pextrd [dstq+stride3q ], xm1, 1
    mova       [maskq+32*0], m4
    cmp                  hd, 8
    jl .w4_end
    lea                dstq, [dstq+strideq*4]
    pextrd [dstq+strideq*0], xm0, 2
    pextrd [dstq+strideq*1], xm0, 3
    pextrd [dstq+strideq*2], xm1, 2
    pextrd [dstq+stride3q ], xm1, 3
    je .w4_end
    W_MASK                2, 4, 1
    lea                dstq, [dstq+strideq*4]
    vextracti128        xm1, m0, 1
    movd   [dstq+strideq*0], xm0
    pextrd [dstq+strideq*1], xm0, 1
    movd   [dstq+strideq*2], xm1
    pextrd [dstq+stride3q ], xm1, 1
    lea                dstq, [dstq+strideq*4]
    pextrd [dstq+strideq*0], xm0, 2
    pextrd [dstq+strideq*1], xm0, 3
    pextrd [dstq+strideq*2], xm1, 2
    pextrd [dstq+stride3q ], xm1, 3
    mova       [maskq+32*1], m4
.w4_end:
    RET
.w8_loop:
    add               tmp1q, 32*2
    add               tmp2q, 32*2
    W_MASK                0, 4, 1
    lea                dstq, [dstq+strideq*4]
    add               maskq, 32
.w8:
    vextracti128        xm1, m0, 1
    movq   [dstq+strideq*0], xm0
    movq   [dstq+strideq*1], xm1
    movhps [dstq+strideq*2], xm0
    movhps [dstq+stride3q ], xm1
    mova            [maskq], m4
    sub                  hd, 4
    jg .w8_loop
    RET
.w16_loop:
    add               tmp1q, 32*2
    add               tmp2q, 32*2
    W_MASK                0, 4, 1
    lea                dstq, [dstq+strideq*2]
    add               maskq, 32
.w16:
    vpermq               m0, m0, q3120
    mova         [dstq+strideq*0], xm0
    vextracti128 [dstq+strideq*1], m0, 1
    mova            [maskq], m4
    sub                  hd, 2
    jg .w16_loop
    RET
.w32_loop:
    add               tmp1q, 32*2
    add               tmp2q, 32*2
    W_MASK                0, 4, 1
    add                dstq, strideq
    add               maskq, 32
.w32:
    vpermq               m0, m0, q3120
    mova             [dstq], m0
    mova            [maskq], m4
    dec                  hd
    jg .w32_loop
    RET
.w64_loop:
    add               tmp1q, 32*4
    add               tmp2q, 32*4
    W_MASK                0, 4, 1
    add                dstq, strideq
    add               maskq, 32*2
.w64:
    vpermq               m0, m0, q3120
    mova        [dstq+32*0], m0
    mova       [maskq+32*0], m4
    W_MASK                2, 4, 1
    vpermq               m0, m0, q3120
    mova        [dstq+32*1], m0
    mova       [maskq+32*1], m4
    dec                  hd
    jg .w64_loop
    RET
.w128_loop:
    add               tmp1q, 32*8
    add               tmp2q, 32*8
    W_MASK                0, 4, 1
    add                dstq, strideq
    add               maskq, 32*4
.w128:
    vpermq               m0, m0, q3120
    mova        [dstq+32*0], m0
    mova       [maskq+32*0], m4
    W_MASK                2, 4, 1
    vpermq               m0, m0, q3120
    mova        [dstq+32*1], m0
    mova       [maskq+32*1], m4
    W_MASK                4, 4, 1
    vpermq               m0, m0, q3120
    mova        [dstq+32*2], m0
    mova       [maskq+32*2], m4
    W_MASK                6, 4, 1
    vpermq               m0, m0, q3120
    mova        [dstq+32*3], m0
    mova       [maskq+32*3], m4
    dec                  hd
    jg .w128_loop
    RET

cglobal blend, 3, 7, 7, dst, ds, tmp, w, h, mask
%define base r6-blend_avx2_table
    lea                  r6, [blend_avx2_table]
    tzcnt                wd, wm
    movifnidn            hd, hm
    movifnidn         maskq, maskmp
    movsxd               wq, dword [r6+wq*4]
    vpbroadcastd         m4, [base+pb_64]
    vpbroadcastd         m5, [base+pw_512]
    add                  wq, r6
    lea                  r6, [dsq*3]
    jmp                  wq
.w4:
    movd                xm0, [dstq+dsq*0]
    pinsrd              xm0, [dstq+dsq*1], 1
    vpbroadcastd        xm1, [dstq+dsq*2]
    pinsrd              xm1, [dstq+r6   ], 3
    mova                xm6, [maskq]
    psubb               xm3, xm4, xm6
    punpcklbw           xm2, xm3, xm6
    punpckhbw           xm3, xm6
    mova                xm6, [tmpq]
    add               maskq, 4*4
    add                tmpq, 4*4
    punpcklbw           xm0, xm6
    punpckhbw           xm1, xm6
    pmaddubsw           xm0, xm2
    pmaddubsw           xm1, xm3
    pmulhrsw            xm0, xm5
    pmulhrsw            xm1, xm5
    packuswb            xm0, xm1
    movd       [dstq+dsq*0], xm0
    pextrd     [dstq+dsq*1], xm0, 1
    pextrd     [dstq+dsq*2], xm0, 2
    pextrd     [dstq+r6   ], xm0, 3
    lea                dstq, [dstq+dsq*4]
    sub                  hd, 4
    jg .w4
    RET
ALIGN function_align
.w8:
    movq                xm1, [dstq+dsq*0]
    movhps              xm1, [dstq+dsq*1]
    vpbroadcastq         m2, [dstq+dsq*2]
    vpbroadcastq         m3, [dstq+r6   ]
    mova                 m0, [maskq]
    mova                 m6, [tmpq]
    add               maskq, 8*4
    add                tmpq, 8*4
    vpblendd             m1, m2, 0x30
    vpblendd             m1, m3, 0xc0
    psubb                m3, m4, m0
    punpcklbw            m2, m3, m0
    punpckhbw            m3, m0
    punpcklbw            m0, m1, m6
    punpckhbw            m1, m6
    pmaddubsw            m0, m2
    pmaddubsw            m1, m3
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
    vextracti128        xm1, m0, 1
    movq       [dstq+dsq*0], xm0
    movhps     [dstq+dsq*1], xm0
    movq       [dstq+dsq*2], xm1
    movhps     [dstq+r6   ], xm1
    lea                dstq, [dstq+dsq*4]
    sub                  hd, 4
    jg .w8
    RET
ALIGN function_align
.w16:
    mova                 m0, [maskq]
    mova                xm1, [dstq+dsq*0]
    vinserti128          m1, [dstq+dsq*1], 1
    psubb                m3, m4, m0
    punpcklbw            m2, m3, m0
    punpckhbw            m3, m0
    mova                 m6, [tmpq]
    add               maskq, 16*2
    add                tmpq, 16*2
    punpcklbw            m0, m1, m6
    punpckhbw            m1, m6
    pmaddubsw            m0, m2
    pmaddubsw            m1, m3
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
    mova         [dstq+dsq*0], xm0
    vextracti128 [dstq+dsq*1], m0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .w16
    RET
ALIGN function_align
.w32:
    mova                 m0, [maskq]
    mova                 m1, [dstq]
    mova                 m6, [tmpq]
    add               maskq, 32
    add                tmpq, 32
    psubb                m3, m4, m0
    punpcklbw            m2, m3, m0
    punpckhbw            m3, m0
    punpcklbw            m0, m1, m6
    punpckhbw            m1, m6
    pmaddubsw            m0, m2
    pmaddubsw            m1, m3
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
    mova             [dstq], m0
    add                dstq, dsq
    dec                  hd
    jg .w32
    RET

cglobal blend_v, 3, 6, 6, dst, ds, tmp, w, h, mask
%define base r5-blend_v_avx2_table
    lea                  r5, [blend_v_avx2_table]
    tzcnt                wd, wm
    movifnidn            hd, hm
    movsxd               wq, dword [r5+wq*4]
    vpbroadcastd         m5, [base+pw_512]
    add                  wq, r5
    add               maskq, obmc_masks-blend_v_avx2_table
    jmp                  wq
.w2:
    vpbroadcastd        xm2, [maskq+2*2]
.w2_s0_loop:
    movd                xm0, [dstq+dsq*0]
    pinsrw              xm0, [dstq+dsq*1], 1
    movd                xm1, [tmpq]
    add                tmpq, 2*2
    punpcklbw           xm0, xm1
    pmaddubsw           xm0, xm2
    pmulhrsw            xm0, xm5
    packuswb            xm0, xm0
    pextrw     [dstq+dsq*0], xm0, 0
    pextrw     [dstq+dsq*1], xm0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .w2_s0_loop
    RET
ALIGN function_align
.w4:
    vpbroadcastq        xm2, [maskq+4*2]
.w4_loop:
    movd                xm0, [dstq+dsq*0]
    pinsrd              xm0, [dstq+dsq*1], 1
    movq                xm1, [tmpq]
    add                tmpq, 4*2
    punpcklbw           xm0, xm1
    pmaddubsw           xm0, xm2
    pmulhrsw            xm0, xm5
    packuswb            xm0, xm0
    movd       [dstq+dsq*0], xm0
    pextrd     [dstq+dsq*1], xm0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .w4_loop
    RET
ALIGN function_align
.w8:
    vbroadcasti128       m4, [maskq+8*2]
.w8_loop:
    vpbroadcastq         m2, [dstq+dsq*0]
    movq                xm0, [dstq+dsq*1]
    vpblendd             m0, m2, 0x30
    movq                xm1, [tmpq+8*1]
    vinserti128          m1, [tmpq+8*0], 1
    add                tmpq, 8*2
    punpcklbw            m0, m1
    pmaddubsw            m0, m4
    pmulhrsw             m0, m5
    vextracti128        xm1, m0, 1
    packuswb            xm0, xm1
    movhps     [dstq+dsq*0], xm0
    movq       [dstq+dsq*1], xm0
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .w8_loop
    RET
ALIGN function_align
.w16:
    vbroadcasti128       m3, [maskq+16*2]
    vbroadcasti128       m4, [maskq+16*3]
.w16_loop:
    mova                xm1, [dstq+dsq*0]
    vinserti128          m1, [dstq+dsq*1], 1
    mova                 m2, [tmpq]
    add                tmpq, 16*2
    punpcklbw            m0, m1, m2
    punpckhbw            m1, m2
    pmaddubsw            m0, m3
    pmaddubsw            m1, m4
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
    mova         [dstq+dsq*0], xm0
    vextracti128 [dstq+dsq*1], m0, 1
    lea                dstq, [dstq+dsq*2]
    sub                  hd, 2
    jg .w16_loop
    RET
ALIGN function_align
.w32:
    mova                xm3, [maskq+16*4]
    vinserti128          m3, [maskq+16*6], 1
    mova                xm4, [maskq+16*5]
    vinserti128          m4, [maskq+16*7], 1
.w32_loop:
    mova                 m1, [dstq]
    mova                 m2, [tmpq]
    add                tmpq, 32
    punpcklbw            m0, m1, m2
    punpckhbw            m1, m2
    pmaddubsw            m0, m3
    pmaddubsw            m1, m4
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
    mova             [dstq], m0
    add                dstq, dsq
    dec                  hd
    jg .w32_loop
    RET

cglobal blend_h, 4, 7, 6, dst, ds, tmp, w, h, mask
%define base r5-blend_h_avx2_table
    lea                  r5, [blend_h_avx2_table]
    mov                 r6d, wd
    tzcnt                wd, wd
    mov                  hd, hm
    movsxd               wq, dword [r5+wq*4]
    vpbroadcastd         m5, [base+pw_512]
    add                  wq, r5
    lea               maskq, [base+obmc_masks+hq*2]
    lea                  hd, [hq*3]
    shr                  hd, 2 ; h * 3/4
    lea               maskq, [maskq+hq*2]
    neg                  hq
    jmp                  wq
.w2:
    movd                xm0, [dstq+dsq*0]
    pinsrw              xm0, [dstq+dsq*1], 1
    movd                xm2, [maskq+hq*2]
    movd                xm1, [tmpq]
    add                tmpq, 2*2
    punpcklwd           xm2, xm2
    punpcklbw           xm0, xm1
    pmaddubsw           xm0, xm2
    pmulhrsw            xm0, xm5
    packuswb            xm0, xm0
    pextrw     [dstq+dsq*0], xm0, 0
    pextrw     [dstq+dsq*1], xm0, 1
    lea                dstq, [dstq+dsq*2]
    add                  hq, 2
    jl .w2
    RET
ALIGN function_align
.w4:
    mova                xm3, [blend_shuf]
.w4_loop:
    movd                xm0, [dstq+dsq*0]
    pinsrd              xm0, [dstq+dsq*1], 1
    movd                xm2, [maskq+hq*2]
    movq                xm1, [tmpq]
    add                tmpq, 4*2
    pshufb              xm2, xm3
    punpcklbw           xm0, xm1
    pmaddubsw           xm0, xm2
    pmulhrsw            xm0, xm5
    packuswb            xm0, xm0
    movd       [dstq+dsq*0], xm0
    pextrd     [dstq+dsq*1], xm0, 1
    lea                dstq, [dstq+dsq*2]
    add                  hq, 2
    jl .w4_loop
    RET
ALIGN function_align
.w8:
    vbroadcasti128       m4, [blend_shuf]
    shufpd               m4, m4, 0x03
.w8_loop:
    vpbroadcastq         m1, [dstq+dsq*0]
    movq                xm0, [dstq+dsq*1]
    vpblendd             m0, m1, 0x30
    vpbroadcastd         m3, [maskq+hq*2]
    movq                xm1, [tmpq+8*1]
    vinserti128          m1, [tmpq+8*0], 1
    add                tmpq, 8*2
    pshufb               m3, m4
    punpcklbw            m0, m1
    pmaddubsw            m0, m3
    pmulhrsw             m0, m5
    vextracti128        xm1, m0, 1
    packuswb            xm0, xm1
    movhps     [dstq+dsq*0], xm0
    movq       [dstq+dsq*1], xm0
    lea                dstq, [dstq+dsq*2]
    add                  hq, 2
    jl .w8_loop
    RET
ALIGN function_align
.w16:
    vbroadcasti128       m4, [blend_shuf]
    shufpd               m4, m4, 0x0c
.w16_loop:
    mova                xm1, [dstq+dsq*0]
    vinserti128          m1, [dstq+dsq*1], 1
    vpbroadcastd         m3, [maskq+hq*2]
    mova                 m2, [tmpq]
    add                tmpq, 16*2
    pshufb               m3, m4
    punpcklbw            m0, m1, m2
    punpckhbw            m1, m2
    pmaddubsw            m0, m3
    pmaddubsw            m1, m3
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
    mova         [dstq+dsq*0], xm0
    vextracti128 [dstq+dsq*1], m0, 1
    lea                dstq, [dstq+dsq*2]
    add                  hq, 2
    jl .w16_loop
    RET
ALIGN function_align
.w32: ; w32/w64/w128
    sub                 dsq, r6
.w32_loop0:
    vpbroadcastw         m3, [maskq+hq*2]
    mov                  wd, r6d
.w32_loop:
    mova                 m1, [dstq]
    mova                 m2, [tmpq]
    add                tmpq, 32
    punpcklbw            m0, m1, m2
    punpckhbw            m1, m2
    pmaddubsw            m0, m3
    pmaddubsw            m1, m3
    pmulhrsw             m0, m5
    pmulhrsw             m1, m5
    packuswb             m0, m1
    mova             [dstq], m0
    add                dstq, 32
    sub                  wd, 32
    jg .w32_loop
    add                dstq, dsq
    inc                  hq
    jl .w32_loop0
    RET

cglobal emu_edge, 10, 13, 1, bw, bh, iw, ih, x, y, dst, dstride, src, sstride, \
                             bottomext, rightext
    ; we assume that the buffer (stride) is larger than width, so we can
    ; safely overwrite by a few bytes

    ; ref += iclip(y, 0, ih - 1) * PXSTRIDE(ref_stride)
    xor                r12d, r12d
    lea                 r10, [ihq-1]
    cmp                  yq, ihq
    cmovl               r10, yq
    test                 yq, yq
    cmovl               r10, r12
    imul                r10, sstrideq
    add                srcq, r10

    ; ref += iclip(x, 0, iw - 1)
    lea                 r10, [iwq-1]
    cmp                  xq, iwq
    cmovl               r10, xq
    test                 xq, xq
    cmovl               r10, r12
    add                srcq, r10

    ; bottom_ext = iclip(y + bh - ih, 0, bh - 1)
    lea          bottomextq, [yq+bhq]
    sub          bottomextq, ihq
    lea                  r3, [bhq-1]
    cmovl        bottomextq, r12

    DEFINE_ARGS bw, bh, iw, ih, x, topext, dst, dstride, src, sstride, \
                bottomext, rightext

    ; top_ext = iclip(-y, 0, bh - 1)
    neg             topextq
    cmovl           topextq, r12
    cmp          bottomextq, bhq
    cmovge       bottomextq, r3
    cmp             topextq, bhq
    cmovg           topextq, r3

    ; right_ext = iclip(x + bw - iw, 0, bw - 1)
    lea           rightextq, [xq+bwq]
    sub           rightextq, iwq
    lea                  r2, [bwq-1]
    cmovl         rightextq, r12

    DEFINE_ARGS bw, bh, iw, ih, leftext, topext, dst, dstride, src, sstride, \
                bottomext, rightext

    ; left_ext = iclip(-x, 0, bw - 1)
    neg            leftextq
    cmovl          leftextq, r12
    cmp           rightextq, bwq
    cmovge        rightextq, r2
    cmp            leftextq, bwq
    cmovge         leftextq, r2

    DEFINE_ARGS bw, centerh, centerw, dummy, leftext, topext, \
                dst, dstride, src, sstride, bottomext, rightext

    ; center_h = bh - top_ext - bottom_ext
    lea                  r3, [bottomextq+topextq]
    sub            centerhq, r3

    ; blk += top_ext * PXSTRIDE(dst_stride)
    mov                  r2, topextq
    imul                 r2, dstrideq
    add                dstq, r2
    mov                 r9m, dstq

    ; center_w = bw - left_ext - right_ext
    mov            centerwq, bwq
    lea                  r3, [rightextq+leftextq]
    sub            centerwq, r3

%macro v_loop 3 ; need_left_ext, need_right_ext, suffix
.v_loop_%3:
%if %1
    test           leftextq, leftextq
    jz .body_%3

    ; left extension
    xor                  r3, r3
    vpbroadcastb         m0, [srcq]
.left_loop_%3:
    mova          [dstq+r3], m0
    add                  r3, 32
    cmp                  r3, leftextq
    jl .left_loop_%3

    ; body
.body_%3:
    lea                 r12, [dstq+leftextq]
%endif
    xor                  r3, r3
.body_loop_%3:
    movu                 m0, [srcq+r3]
%if %1
    movu           [r12+r3], m0
%else
    movu          [dstq+r3], m0
%endif
    add                  r3, 32
    cmp                  r3, centerwq
    jl .body_loop_%3

%if %2
    ; right extension
    test          rightextq, rightextq
    jz .body_loop_end_%3
%if %1
    add                 r12, centerwq
%else
    lea                 r12, [dstq+centerwq]
%endif
    xor                  r3, r3
    vpbroadcastb         m0, [srcq+centerwq-1]
.right_loop_%3:
    movu           [r12+r3], m0
    add                  r3, 32
    cmp                  r3, rightextq
    jl .right_loop_%3

.body_loop_end_%3:
%endif
    add                dstq, dstrideq
    add                srcq, sstrideq
    dec            centerhq
    jg .v_loop_%3
%endmacro

    test           leftextq, leftextq
    jnz .need_left_ext
    test          rightextq, rightextq
    jnz .need_right_ext
    v_loop                0, 0, 0
    jmp .body_done

.need_left_ext:
    test          rightextq, rightextq
    jnz .need_left_right_ext
    v_loop                1, 0, 1
    jmp .body_done

.need_left_right_ext:
    v_loop                1, 1, 2
    jmp .body_done

.need_right_ext:
    v_loop                0, 1, 3

.body_done:
    ; bottom edge extension
    test         bottomextq, bottomextq
    jz .top
    mov                srcq, dstq
    sub                srcq, dstrideq
    xor                  r1, r1
.bottom_x_loop:
    mova                 m0, [srcq+r1]
    lea                  r3, [dstq+r1]
    mov                  r4, bottomextq
.bottom_y_loop:
    mova               [r3], m0
    add                  r3, dstrideq
    dec                  r4
    jg .bottom_y_loop
    add                  r1, 32
    cmp                  r1, bwq
    jl .bottom_x_loop

.top:
    ; top edge extension
    test            topextq, topextq
    jz .end
    mov                srcq, r9m
    mov                dstq, dstm
    xor                  r1, r1
.top_x_loop:
    mova                 m0, [srcq+r1]
    lea                  r3, [dstq+r1]
    mov                  r4, topextq
.top_y_loop:
    mova               [r3], m0
    add                  r3, dstrideq
    dec                  r4
    jg .top_y_loop
    add                  r1, 32
    cmp                  r1, bwq
    jl .top_x_loop

.end:
    RET

%endif ; ARCH_X86_64