818 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			NASM
		
	
	
	
	
	
			
		
		
	
	
			818 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			NASM
		
	
	
	
	
	
| ;******************************************************************************
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| ;* VP9 loop filter SIMD optimizations
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| ;*
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| ;* Copyright (C) 2013-2014 Clément Bœsch <u pkh me>
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| ;*
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| ;* This file is part of FFmpeg.
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| ;*
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| ;* FFmpeg is free software; you can redistribute it and/or
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| ;* modify it under the terms of the GNU Lesser General Public
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| ;* License as published by the Free Software Foundation; either
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| ;* version 2.1 of the License, or (at your option) any later version.
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| ;*
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| ;* FFmpeg is distributed in the hope that it will be useful,
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| ;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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| ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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| ;* Lesser General Public License for more details.
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| ;*
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| ;* You should have received a copy of the GNU Lesser General Public
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| ;* License along with FFmpeg; if not, write to the Free Software
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| ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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| ;******************************************************************************
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| 
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| %if ARCH_X86_64
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| 
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| %include "libavutil/x86/x86util.asm"
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| 
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| SECTION_RODATA
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| 
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| cextern pb_3
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| cextern pb_80
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| 
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| pb_4:   times 16 db 0x04
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| pb_10:  times 16 db 0x10
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| pb_40:  times 16 db 0x40
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| pb_81:  times 16 db 0x81
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| pb_f8:  times 16 db 0xf8
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| pb_fe:  times 16 db 0xfe
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| 
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| pw_4:   times  8 dw 4
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| pw_8:   times  8 dw 8
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| 
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| ; with mix functions, two 8-bit thresholds are stored in a 16-bit storage,
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| ; the following mask is used to splat both in the same register
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| mask_mix: times 8 db 0
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|           times 8 db 1
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| 
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| mask_mix84: times 8 db 0xff
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|             times 8 db 0x00
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| mask_mix48: times 8 db 0x00
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|             times 8 db 0xff
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| 
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| SECTION .text
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| 
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| ; %1 = abs(%2-%3)
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| %macro ABSSUB 4 ; dst, src1 (RO), src2 (RO), tmp
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|     psubusb             %1, %3, %2
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|     psubusb             %4, %2, %3
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|     por                 %1, %4
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| %endmacro
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| 
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| ; %1 = %1<=%2
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| %macro CMP_LTE 3-4 ; src/dst, cmp, tmp, pb_80
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| %if %0 == 4
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|     pxor                %1, %4
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| %endif
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|     pcmpgtb             %3, %2, %1          ; cmp > src?
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|     pcmpeqb             %1, %2              ; cmp == src? XXX: avoid this with a -1/+1 well placed?
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|     por                 %1, %3              ; cmp >= src?
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| %endmacro
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| 
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| ; %1 = abs(%2-%3) <= %4
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| %macro ABSSUB_CMP 6-7 [pb_80]; dst, src1, src2, cmp, tmp1, tmp2, [pb_80]
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|     ABSSUB              %1, %2, %3, %6      ; dst = abs(src1-src2)
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|     CMP_LTE             %1, %4, %6, %7      ; dst <= cmp
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| %endmacro
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| 
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| %macro MASK_APPLY 4 ; %1=new_data/dst %2=old_data %3=mask %4=tmp
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|     pand                %1, %3              ; new &= mask
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|     pandn               %4, %3, %2          ; tmp = ~mask & old
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|     por                 %1, %4              ; new&mask | old&~mask
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| %endmacro
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| 
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| %macro FILTER_SUBx2_ADDx2 8 ; %1=dst %2=h/l %3=cache %4=sub1 %5=sub2 %6=add1 %7=add2 %8=rshift
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|     punpck%2bw          %3, %4, m0
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|     psubw               %1, %3
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|     punpck%2bw          %3, %5, m0
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|     psubw               %1, %3
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|     punpck%2bw          %3, %6, m0
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|     paddw               %1, %3
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|     punpck%2bw          %3, %7, m0
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|     paddw               %3, %1
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|     psraw               %1, %3, %8
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| %endmacro
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| 
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| %macro FILTER_INIT 8 ; tmp1, tmp2, cacheL, cacheH, dstp, filterid, mask, source
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|     FILTER%6_INIT       %1, l, %3
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|     FILTER%6_INIT       %2, h, %4
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|     packuswb            %1, %2
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|     MASK_APPLY          %1, %8, %7, %2
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|     mova                %5, %1
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| %endmacro
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| 
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| %macro FILTER_UPDATE 11-14 ; tmp1, tmp2, cacheL, cacheH, dstp, -, -, +, +, rshift, mask, [source], [preload reg + value]
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| %if %0 == 13 ; no source + preload
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|     mova                %12, %13
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| %elif %0 == 14 ; source + preload
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|     mova                %13, %14
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| %endif
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|     FILTER_SUBx2_ADDx2  %1, l, %3, %6, %7, %8, %9, %10
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|     FILTER_SUBx2_ADDx2  %2, h, %4, %6, %7, %8, %9, %10
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|     packuswb            %1, %2
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| %if %0 == 12 || %0 == 14
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|     MASK_APPLY          %1, %12, %11, %2
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| %else
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|     MASK_APPLY          %1, %5, %11, %2
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| %endif
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|     mova                %5, %1
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| %endmacro
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| 
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| %macro SRSHIFT3B_2X 4 ; reg1, reg2, [pb_10], tmp
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|     mova                %4, [pb_f8]
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|     pand                %1, %4
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|     pand                %2, %4
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|     psrlq               %1, 3
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|     psrlq               %2, 3
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|     pxor                %1, %3
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|     pxor                %2, %3
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|     psubb               %1, %3
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|     psubb               %2, %3
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| %endmacro
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| 
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| %macro EXTRACT_POS_NEG 3 ; i8, neg, pos
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|     pxor                %3, %3
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|     pxor                %2, %2
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|     pcmpgtb             %3, %1                          ; i8 < 0 mask
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|     psubb               %2, %1                          ; neg values (only the originally - will be kept)
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|     pand                %2, %3                          ; negative values of i8 (but stored as +)
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|     pandn               %3, %1                          ; positive values of i8
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| %endmacro
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| 
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| ; clip_u8(u8 + i8)
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| %macro SIGN_ADD 5 ; dst, u8, i8, tmp1, tmp2
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|     EXTRACT_POS_NEG     %3, %4, %5
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|     psubusb             %1, %2, %4                      ; sub the negatives
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|     paddusb             %1, %5                          ; add the positives
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| %endmacro
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| 
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| ; clip_u8(u8 - i8)
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| %macro SIGN_SUB 5 ; dst, u8, i8, tmp1, tmp2
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|     EXTRACT_POS_NEG     %3, %4, %5
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|     psubusb             %1, %2, %5                      ; sub the positives
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|     paddusb             %1, %4                          ; add the negatives
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| %endmacro
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| 
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| %macro FILTER6_INIT 3 ; %1=dst %2=h/l %3=cache
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|     punpck%2bw          %1, m14, m0                     ; p3: B->W
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|     paddw               %3, %1, %1                      ; p3*2
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|     paddw               %3, %1                          ; p3*3
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|     punpck%2bw          %1, m15, m0                     ; p2: B->W
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|     paddw               %3, %1                          ; p3*3 + p2
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|     paddw               %3, %1                          ; p3*3 + p2*2
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|     punpck%2bw          %1, m10, m0                     ; p1: B->W
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|     paddw               %3, %1                          ; p3*3 + p2*2 + p1
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|     punpck%2bw          %1, m11, m0                     ; p0: B->W
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|     paddw               %3, %1                          ; p3*3 + p2*2 + p1 + p0
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|     punpck%2bw          %1, m12, m0                     ; q0: B->W
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|     paddw               %3, %1                          ; p3*3 + p2*2 + p1 + p0 + q0
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|     paddw               %3, [pw_4]                      ; p3*3 + p2*2 + p1 + p0 + q0 + 4
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|     psraw               %1, %3, 3                       ; (p3*3 + p2*2 + p1 + p0 + q0 + 4) >> 3
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| %endmacro
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| 
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| %macro FILTER14_INIT 3 ; %1=dst %2=h/l %3=cache
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|     punpck%2bw          %1, m2, m0                      ; p7: B->W
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|     psllw               %3, %1, 3                       ; p7*8
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|     psubw               %3, %1                          ; p7*7
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|     punpck%2bw          %1, m3, m0                      ; p6: B->W
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|     paddw               %3, %1                          ; p7*7 + p6
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|     paddw               %3, %1                          ; p7*7 + p6*2
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|     punpck%2bw          %1, m8, m0                      ; p5: B->W
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|     paddw               %3, %1                          ; p7*7 + p6*2 + p5
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|     punpck%2bw          %1, m9, m0                      ; p4: B->W
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|     paddw               %3, %1                          ; p7*7 + p6*2 + p5 + p4
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|     punpck%2bw          %1, m14, m0                     ; p3: B->W
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|     paddw               %3, %1                          ; p7*7 + p6*2 + p5 + p4 + p3
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|     punpck%2bw          %1, m15, m0                     ; p2: B->W
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|     paddw               %3, %1                          ; p7*7 + p6*2 + p5 + .. + p2
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|     punpck%2bw          %1, m10, m0                     ; p1: B->W
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|     paddw               %3, %1                          ; p7*7 + p6*2 + p5 + .. + p1
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|     punpck%2bw          %1, m11, m0                     ; p0: B->W
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|     paddw               %3, %1                          ; p7*7 + p6*2 + p5 + .. + p0
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|     punpck%2bw          %1, m12, m0                     ; q0: B->W
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|     paddw               %3, %1                          ; p7*7 + p6*2 + p5 + .. + p0 + q0
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|     paddw               %3, [pw_8]                      ; p7*7 + p6*2 + p5 + .. + p0 + q0 + 8
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|     psraw               %1, %3, 4                       ; (p7*7 + p6*2 + p5 + .. + p0 + q0 + 8) >> 4
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| %endmacro
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| 
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| %macro TRANSPOSE16x16B 17
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|     mova %17, m%16
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|     SBUTTERFLY bw,  %1,  %2,  %16
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|     SBUTTERFLY bw,  %3,  %4,  %16
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|     SBUTTERFLY bw,  %5,  %6,  %16
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|     SBUTTERFLY bw,  %7,  %8,  %16
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|     SBUTTERFLY bw,  %9,  %10, %16
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|     SBUTTERFLY bw,  %11, %12, %16
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|     SBUTTERFLY bw,  %13, %14, %16
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|     mova m%16,  %17
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|     mova  %17, m%14
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|     SBUTTERFLY bw,  %15, %16, %14
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|     SBUTTERFLY wd,  %1,  %3,  %14
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|     SBUTTERFLY wd,  %2,  %4,  %14
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|     SBUTTERFLY wd,  %5,  %7,  %14
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|     SBUTTERFLY wd,  %6,  %8,  %14
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|     SBUTTERFLY wd,  %9,  %11, %14
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|     SBUTTERFLY wd,  %10, %12, %14
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|     SBUTTERFLY wd,  %13, %15, %14
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|     mova m%14,  %17
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|     mova  %17, m%12
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|     SBUTTERFLY wd,  %14, %16, %12
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|     SBUTTERFLY dq,  %1,  %5,  %12
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|     SBUTTERFLY dq,  %2,  %6,  %12
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|     SBUTTERFLY dq,  %3,  %7,  %12
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|     SBUTTERFLY dq,  %4,  %8,  %12
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|     SBUTTERFLY dq,  %9,  %13, %12
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|     SBUTTERFLY dq,  %10, %14, %12
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|     SBUTTERFLY dq,  %11, %15, %12
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|     mova m%12, %17
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|     mova  %17, m%8
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|     SBUTTERFLY dq,  %12, %16, %8
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|     SBUTTERFLY qdq, %1,  %9,  %8
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|     SBUTTERFLY qdq, %2,  %10, %8
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|     SBUTTERFLY qdq, %3,  %11, %8
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|     SBUTTERFLY qdq, %4,  %12, %8
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|     SBUTTERFLY qdq, %5,  %13, %8
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|     SBUTTERFLY qdq, %6,  %14, %8
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|     SBUTTERFLY qdq, %7,  %15, %8
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|     mova m%8, %17
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|     mova %17, m%1
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|     SBUTTERFLY qdq, %8,  %16, %1
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|     mova m%1, %17
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|     SWAP %2,  %9
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|     SWAP %3,  %5
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|     SWAP %4,  %13
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|     SWAP %6,  %11
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|     SWAP %8,  %15
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|     SWAP %12, %14
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| %endmacro
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| 
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| ; transpose 16 half lines (high part) to 8 full centered lines
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| %macro TRANSPOSE16x8B 16
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|     punpcklbw   m%1,  m%2
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|     punpcklbw   m%3,  m%4
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|     punpcklbw   m%5,  m%6
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|     punpcklbw   m%7,  m%8
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|     punpcklbw   m%9,  m%10
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|     punpcklbw   m%11, m%12
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|     punpcklbw   m%13, m%14
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|     punpcklbw   m%15, m%16
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|     SBUTTERFLY  wd,  %1,  %3,  %2
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|     SBUTTERFLY  wd,  %5,  %7,  %2
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|     SBUTTERFLY  wd,  %9,  %11, %2
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|     SBUTTERFLY  wd,  %13, %15, %2
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|     SBUTTERFLY  dq,  %1,  %5,  %2
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|     SBUTTERFLY  dq,  %3,  %7,  %2
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|     SBUTTERFLY  dq,  %9,  %13, %2
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|     SBUTTERFLY  dq,  %11, %15, %2
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|     SBUTTERFLY  qdq, %1,  %9,  %2
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|     SBUTTERFLY  qdq, %3,  %11, %2
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|     SBUTTERFLY  qdq, %5,  %13, %2
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|     SBUTTERFLY  qdq, %7,  %15, %2
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|     SWAP %5, %1
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|     SWAP %6, %9
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|     SWAP %7, %1
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|     SWAP %8, %13
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|     SWAP %9, %3
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|     SWAP %10, %11
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|     SWAP %11, %1
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|     SWAP %12, %15
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| %endmacro
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| 
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| %macro DEFINE_REAL_P7_TO_Q7 0-1 0
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| %define P7 dst1q + 2*mstrideq  + %1
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| %define P6 dst1q +   mstrideq  + %1
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| %define P5 dst1q               + %1
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| %define P4 dst1q +    strideq  + %1
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| %define P3 dstq  + 4*mstrideq  + %1
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| %define P2 dstq  +   mstride3q + %1
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| %define P1 dstq  + 2*mstrideq  + %1
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| %define P0 dstq  +   mstrideq  + %1
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| %define Q0 dstq                + %1
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| %define Q1 dstq  +   strideq   + %1
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| %define Q2 dstq  + 2*strideq   + %1
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| %define Q3 dstq  +   stride3q  + %1
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| %define Q4 dstq  + 4*strideq   + %1
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| %define Q5 dst2q + mstrideq    + %1
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| %define Q6 dst2q               + %1
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| %define Q7 dst2q +  strideq    + %1
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| %endmacro
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| 
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| ; ..............AB -> AAAAAAAABBBBBBBB
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| %macro SPLATB_MIX 1-2 [mask_mix]
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| %if cpuflag(ssse3)
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|     pshufb     %1, %2
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| %else
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|     punpcklbw  %1, %1
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|     punpcklqdq %1, %1
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|     pshuflw    %1, %1, 0
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|     pshufhw    %1, %1, 0x55
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| %endif
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| %endmacro
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| 
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| %macro LOOPFILTER 2 ; %1=v/h %2=size1
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|     lea mstrideq, [strideq]
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|     neg mstrideq
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| 
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|     lea stride3q, [strideq+2*strideq]
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|     mov mstride3q, stride3q
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|     neg mstride3q
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| 
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| %ifidn %1, h
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| %if %2 > 16
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| %define movx movh
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|     lea dstq, [dstq + 8*strideq - 4]
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| %else
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| %define movx movu
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|     lea dstq, [dstq + 8*strideq - 8] ; go from top center (h pos) to center left (v pos)
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| %endif
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| %endif
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| 
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|     lea dst1q, [dstq + 2*mstride3q]                         ; dst1q = &dst[stride * -6]
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|     lea dst2q, [dstq + 2* stride3q]                         ; dst2q = &dst[stride * +6]
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| 
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|     DEFINE_REAL_P7_TO_Q7
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| 
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| %ifidn %1, h
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|     movx                    m0, [P7]
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|     movx                    m1, [P6]
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|     movx                    m2, [P5]
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|     movx                    m3, [P4]
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|     movx                    m4, [P3]
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|     movx                    m5, [P2]
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|     movx                    m6, [P1]
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|     movx                    m7, [P0]
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|     movx                    m8, [Q0]
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|     movx                    m9, [Q1]
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|     movx                   m10, [Q2]
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|     movx                   m11, [Q3]
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|     movx                   m12, [Q4]
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|     movx                   m13, [Q5]
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|     movx                   m14, [Q6]
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|     movx                   m15, [Q7]
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| %define P7 rsp +   0
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| %define P6 rsp +  16
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| %define P5 rsp +  32
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| %define P4 rsp +  48
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| %define P3 rsp +  64
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| %define P2 rsp +  80
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| %define P1 rsp +  96
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| %define P0 rsp + 112
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| %define Q0 rsp + 128
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| %define Q1 rsp + 144
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| %define Q2 rsp + 160
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| %define Q3 rsp + 176
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| %define Q4 rsp + 192
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| %define Q5 rsp + 208
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| %define Q6 rsp + 224
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| %define Q7 rsp + 240
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| 
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| %if %2 == 16
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|     TRANSPOSE16x16B 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, [rsp]
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|     mova           [P7],  m0
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|     mova           [P6],  m1
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|     mova           [P5],  m2
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|     mova           [P4],  m3
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| %else
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|     TRANSPOSE16x8B 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
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| %endif
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|     mova           [P3],  m4
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|     mova           [P2],  m5
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|     mova           [P1],  m6
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|     mova           [P0],  m7
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|     mova           [Q0],  m8
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|     mova           [Q1],  m9
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|     mova           [Q2], m10
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|     mova           [Q3], m11
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| %if %2 == 16
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|     mova           [Q4], m12
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|     mova           [Q5], m13
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|     mova           [Q6], m14
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|     mova           [Q7], m15
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| %endif
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| %endif
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| 
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|     ; calc fm mask
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| %if %2 == 16
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| %if cpuflag(ssse3)
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|     pxor                m0, m0
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| %endif
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|     SPLATB_REG          m2, I, m0                       ; I I I I ...
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|     SPLATB_REG          m3, E, m0                       ; E E E E ...
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| %else
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| %if cpuflag(ssse3)
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|     mova                m0, [mask_mix]
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| %endif
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|     movd                m2, Id
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|     movd                m3, Ed
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|     SPLATB_MIX          m2, m0
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|     SPLATB_MIX          m3, m0
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| %endif
 | |
|     mova                m0, [pb_80]
 | |
|     pxor                m2, m0
 | |
|     pxor                m3, m0
 | |
| %ifidn %1, v
 | |
|     mova                m8, [P3]
 | |
|     mova                m9, [P2]
 | |
|     mova               m10, [P1]
 | |
|     mova               m11, [P0]
 | |
|     mova               m12, [Q0]
 | |
|     mova               m13, [Q1]
 | |
|     mova               m14, [Q2]
 | |
|     mova               m15, [Q3]
 | |
| %else
 | |
|     ; In case of horizontal, P3..Q3 are already present in some registers due
 | |
|     ; to the previous transpose, so we just swap registers.
 | |
|     SWAP                 8,  4, 12
 | |
|     SWAP                 9,  5, 13
 | |
|     SWAP                10,  6, 14
 | |
|     SWAP                11,  7, 15
 | |
| %endif
 | |
|     ABSSUB_CMP          m5,  m8,  m9, m2, m6, m7, m0    ; m5 = abs(p3-p2) <= I
 | |
|     ABSSUB_CMP          m1,  m9, m10, m2, m6, m7, m0    ; m1 = abs(p2-p1) <= I
 | |
|     pand                m5, m1
 | |
|     ABSSUB_CMP          m1, m10, m11, m2, m6, m7, m0    ; m1 = abs(p1-p0) <= I
 | |
|     pand                m5, m1
 | |
|     ABSSUB_CMP          m1, m12, m13, m2, m6, m7, m0    ; m1 = abs(q1-q0) <= I
 | |
|     pand                m5, m1
 | |
|     ABSSUB_CMP          m1, m13, m14, m2, m6, m7, m0    ; m1 = abs(q2-q1) <= I
 | |
|     pand                m5, m1
 | |
|     ABSSUB_CMP          m1, m14, m15, m2, m6, m7, m0    ; m1 = abs(q3-q2) <= I
 | |
|     pand                m5, m1
 | |
|     ABSSUB              m1, m11, m12, m7                ; abs(p0-q0)
 | |
|     paddusb             m1, m1                          ; abs(p0-q0) * 2
 | |
|     ABSSUB              m2, m10, m13, m7                ; abs(p1-q1)
 | |
|     pand                m2, [pb_fe]                     ; drop lsb so shift can work
 | |
|     psrlq               m2, 1                           ; abs(p1-q1)/2
 | |
|     paddusb             m1, m2                          ; abs(p0-q0)*2 + abs(p1-q1)/2
 | |
|     pxor                m1, m0
 | |
|     pcmpgtb             m4, m3, m1                      ; E > X?
 | |
|     pcmpeqb             m3, m1                          ; E == X?
 | |
|     por                 m3, m4                          ; E >= X?
 | |
|     pand                m3, m5                          ; fm final value
 | |
| 
 | |
|     ; (m3: fm, m8..15: p3 p2 p1 p0 q0 q1 q2 q3)
 | |
|     ; calc flat8in (if not 44_16) and hev masks
 | |
|     mova                m6, [pb_81]                     ; [1 1 1 1 ...] ^ 0x80
 | |
| %if %2 != 44
 | |
|     ABSSUB_CMP          m2, m8, m11, m6, m4, m5         ; abs(p3 - p0) <= 1
 | |
|     mova                m8, [pb_80]
 | |
|     ABSSUB_CMP          m1, m9, m11, m6, m4, m5, m8     ; abs(p2 - p0) <= 1
 | |
|     pand                m2, m1
 | |
|     ABSSUB              m4, m10, m11, m5                ; abs(p1 - p0)
 | |
| %if %2 == 16
 | |
| %if cpuflag(ssse3)
 | |
|     pxor                m0, m0
 | |
| %endif
 | |
|     SPLATB_REG          m7, H, m0                       ; H H H H ...
 | |
| %else
 | |
|     movd                m7, Hd
 | |
|     SPLATB_MIX          m7
 | |
| %endif
 | |
|     pxor                m7, m8
 | |
|     pxor                m4, m8
 | |
|     pcmpgtb             m0, m4, m7                      ; abs(p1 - p0) > H (1/2 hev condition)
 | |
|     CMP_LTE             m4, m6, m5                      ; abs(p1 - p0) <= 1
 | |
|     pand                m2, m4                          ; (flat8in)
 | |
|     ABSSUB              m4, m13, m12, m1                ; abs(q1 - q0)
 | |
|     pxor                m4, m8
 | |
|     pcmpgtb             m5, m4, m7                      ; abs(q1 - q0) > H (2/2 hev condition)
 | |
|     por                 m0, m5                          ; hev final value
 | |
|     CMP_LTE             m4, m6, m5                      ; abs(q1 - q0) <= 1
 | |
|     pand                m2, m4                          ; (flat8in)
 | |
|     ABSSUB_CMP          m1, m14, m12, m6, m4, m5, m8    ; abs(q2 - q0) <= 1
 | |
|     pand                m2, m1
 | |
|     ABSSUB_CMP          m1, m15, m12, m6, m4, m5, m8    ; abs(q3 - q0) <= 1
 | |
|     pand                m2, m1                          ; flat8in final value
 | |
| %if %2 == 84 || %2 == 48
 | |
|     pand                m2, [mask_mix%2]
 | |
| %endif
 | |
| %else
 | |
|     mova                m6, [pb_80]
 | |
|     movd                m7, Hd
 | |
|     SPLATB_MIX          m7
 | |
|     pxor                m7, m6
 | |
|     ABSSUB              m4, m10, m11, m1                ; abs(p1 - p0)
 | |
|     pxor                m4, m6
 | |
|     pcmpgtb             m0, m4, m7                      ; abs(p1 - p0) > H (1/2 hev condition)
 | |
|     ABSSUB              m4, m13, m12, m1                ; abs(q1 - q0)
 | |
|     pxor                m4, m6
 | |
|     pcmpgtb             m5, m4, m7                      ; abs(q1 - q0) > H (2/2 hev condition)
 | |
|     por                 m0, m5                          ; hev final value
 | |
| %endif
 | |
| 
 | |
| %if %2 == 16
 | |
|     ; (m0: hev, m2: flat8in, m3: fm, m6: pb_81, m9..15: p2 p1 p0 q0 q1 q2 q3)
 | |
|     ; calc flat8out mask
 | |
|     mova                m8, [P7]
 | |
|     mova                m9, [P6]
 | |
|     ABSSUB_CMP          m1, m8, m11, m6, m4, m5         ; abs(p7 - p0) <= 1
 | |
|     ABSSUB_CMP          m7, m9, m11, m6, m4, m5         ; abs(p6 - p0) <= 1
 | |
|     pand                m1, m7
 | |
|     mova                m8, [P5]
 | |
|     mova                m9, [P4]
 | |
|     ABSSUB_CMP          m7, m8, m11, m6, m4, m5         ; abs(p5 - p0) <= 1
 | |
|     pand                m1, m7
 | |
|     ABSSUB_CMP          m7, m9, m11, m6, m4, m5         ; abs(p4 - p0) <= 1
 | |
|     pand                m1, m7
 | |
|     mova                m14, [Q4]
 | |
|     mova                m15, [Q5]
 | |
|     ABSSUB_CMP          m7, m14, m12, m6, m4, m5        ; abs(q4 - q0) <= 1
 | |
|     pand                m1, m7
 | |
|     ABSSUB_CMP          m7, m15, m12, m6, m4, m5        ; abs(q5 - q0) <= 1
 | |
|     pand                m1, m7
 | |
|     mova                m14, [Q6]
 | |
|     mova                m15, [Q7]
 | |
|     ABSSUB_CMP          m7, m14, m12, m6, m4, m5        ; abs(q4 - q0) <= 1
 | |
|     pand                m1, m7
 | |
|     ABSSUB_CMP          m7, m15, m12, m6, m4, m5        ; abs(q5 - q0) <= 1
 | |
|     pand                m1, m7                          ; flat8out final value
 | |
| %endif
 | |
| 
 | |
|     ; if (fm) {
 | |
|     ;     if (out && in) filter_14()
 | |
|     ;     else if (in)   filter_6()
 | |
|     ;     else if (hev)  filter_2()
 | |
|     ;     else           filter_4()
 | |
|     ; }
 | |
|     ;
 | |
|     ; f14:                                                                            fm &  out &  in
 | |
|     ; f6:  fm & ~f14 & in        => fm & ~(out & in) & in                          => fm & ~out &  in
 | |
|     ; f2:  fm & ~f14 & ~f6 & hev => fm & ~(out & in) & ~(~out & in) & hev          => fm &  ~in &  hev
 | |
|     ; f4:  fm & ~f14 & ~f6 & ~f2 => fm & ~(out & in) & ~(~out & in) & ~(~in & hev) => fm &  ~in & ~hev
 | |
| 
 | |
|     ; (m0: hev, [m1: flat8out], [m2: flat8in], m3: fm, m8..15: p5 p4 p1 p0 q0 q1 q6 q7)
 | |
|     ; filter2()
 | |
| %if %2 != 44
 | |
|     mova                m6, [pb_80]                     ; already in m6 if 44_16
 | |
| %endif
 | |
|     pxor                m15, m12, m6                    ; q0 ^ 0x80
 | |
|     pxor                m14, m11, m6                    ; p0 ^ 0x80
 | |
|     psubsb              m15, m14                        ; (signed) q0 - p0
 | |
|     pxor                m4, m10, m6                     ; p1 ^ 0x80
 | |
|     pxor                m5, m13, m6                     ; q1 ^ 0x80
 | |
|     psubsb              m4, m5                          ; (signed) p1 - q1
 | |
|     paddsb              m4, m15                         ;   (q0 - p0) + (p1 - q1)
 | |
|     paddsb              m4, m15                         ; 2*(q0 - p0) + (p1 - q1)
 | |
|     paddsb              m4, m15                         ; 3*(q0 - p0) + (p1 - q1)
 | |
|     paddsb              m6, m4, [pb_4]                  ; m6: f1 = clip(f + 4, 127)
 | |
|     paddsb              m4, [pb_3]                      ; m4: f2 = clip(f + 3, 127)
 | |
|     mova                m14, [pb_10]                    ; will be reused in filter4()
 | |
|     SRSHIFT3B_2X        m6, m4, m14, m7                 ; f1 and f2 sign byte shift by 3
 | |
|     SIGN_SUB            m7, m12, m6, m5, m9             ; m7 = q0 - f1
 | |
|     SIGN_ADD            m8, m11, m4, m5, m9             ; m8 = p0 + f2
 | |
| %if %2 != 44
 | |
|     pandn               m6, m2, m3                      ;  ~mask(in) & mask(fm)
 | |
|     pand                m6, m0                          ; (~mask(in) & mask(fm)) & mask(hev)
 | |
| %else
 | |
|     pand                m6, m3, m0
 | |
| %endif
 | |
|     MASK_APPLY          m7, m12, m6, m5                 ; m7 = filter2(q0) & mask / we write it in filter4()
 | |
|     MASK_APPLY          m8, m11, m6, m5                 ; m8 = filter2(p0) & mask / we write it in filter4()
 | |
| 
 | |
|     ; (m0: hev, [m1: flat8out], [m2: flat8in], m3: fm, m7..m8: q0' p0', m10..13: p1 p0 q0 q1, m14: pb_10, m15: q0-p0)
 | |
|     ; filter4()
 | |
|     mova                m4, m15
 | |
|     paddsb              m15, m4                         ; 2 * (q0 - p0)
 | |
|     paddsb              m15, m4                         ; 3 * (q0 - p0)
 | |
|     paddsb              m6, m15, [pb_4]                 ; m6:  f1 = clip(f + 4, 127)
 | |
|     paddsb              m15, [pb_3]                     ; m15: f2 = clip(f + 3, 127)
 | |
|     SRSHIFT3B_2X        m6, m15, m14, m9                ; f1 and f2 sign byte shift by 3
 | |
| %if %2 != 44
 | |
| %define p0tmp m7
 | |
| %define q0tmp m9
 | |
|     pandn               m5, m2, m3                      ;               ~mask(in) & mask(fm)
 | |
|     pandn               m0, m5                          ; ~mask(hev) & (~mask(in) & mask(fm))
 | |
| %else
 | |
| %define p0tmp m1
 | |
| %define q0tmp m2
 | |
|     pandn               m0, m3
 | |
| %endif
 | |
|     SIGN_SUB            q0tmp, m12, m6, m4, m14         ; q0 - f1
 | |
|     MASK_APPLY          q0tmp, m7, m0, m5               ; filter4(q0) & mask
 | |
|     mova                [Q0], q0tmp
 | |
|     SIGN_ADD            p0tmp, m11, m15, m4, m14        ; p0 + f2
 | |
|     MASK_APPLY          p0tmp, m8, m0, m5               ; filter4(p0) & mask
 | |
|     mova                [P0], p0tmp
 | |
|     paddb               m6, [pb_80]                     ;
 | |
|     pxor                m8, m8                          ;   f=(f1+1)>>1
 | |
|     pavgb               m6, m8                          ;
 | |
|     psubb               m6, [pb_40]                     ;
 | |
|     SIGN_ADD            m7, m10, m6, m8, m9             ; p1 + f
 | |
|     SIGN_SUB            m4, m13, m6, m8, m9             ; q1 - f
 | |
|     MASK_APPLY          m7, m10, m0, m14                ; m7 = filter4(p1)
 | |
|     MASK_APPLY          m4, m13, m0, m14                ; m4 = filter4(q1)
 | |
|     mova                [P1], m7
 | |
|     mova                [Q1], m4
 | |
| 
 | |
|     ; ([m1: flat8out], m2: flat8in, m3: fm, m10..13: p1 p0 q0 q1)
 | |
|     ; filter6()
 | |
| %if %2 != 44
 | |
|     pxor                m0, m0
 | |
| %if %2 > 16
 | |
|     pand                m3, m2
 | |
| %else
 | |
|     pand                m2, m3                          ;               mask(fm) & mask(in)
 | |
|     pandn               m3, m1, m2                      ; ~mask(out) & (mask(fm) & mask(in))
 | |
| %endif
 | |
|     mova               m14, [P3]
 | |
|     mova               m15, [P2]
 | |
|     mova                m8, [Q2]
 | |
|     mova                m9, [Q3]
 | |
|     FILTER_INIT         m4, m5, m6, m7, [P2], 6,                     m3, m15    ; [p2]
 | |
|     FILTER_UPDATE       m6, m7, m4, m5, [P1], m14, m15, m10, m13, 3, m3         ; [p1] -p3 -p2 +p1 +q1
 | |
|     FILTER_UPDATE       m4, m5, m6, m7, [P0], m14, m10, m11,  m8, 3, m3         ; [p0] -p3 -p1 +p0 +q2
 | |
|     FILTER_UPDATE       m6, m7, m4, m5, [Q0], m14, m11, m12,  m9, 3, m3         ; [q0] -p3 -p0 +q0 +q3
 | |
|     FILTER_UPDATE       m4, m5, m6, m7, [Q1], m15, m12, m13,  m9, 3, m3         ; [q1] -p2 -q0 +q1 +q3
 | |
|     FILTER_UPDATE       m6, m7, m4, m5, [Q2], m10, m13,  m8,  m9, 3, m3,  m8    ; [q2] -p1 -q1 +q2 +q3
 | |
| %endif
 | |
| 
 | |
|     ; (m0: 0, [m1: flat8out], m2: fm & flat8in, m8..15: q2 q3 p1 p0 q0 q1 p3 p2)
 | |
|     ; filter14()
 | |
|     ;
 | |
|     ;                            m2  m3  m8  m9 m14 m15 m10 m11 m12 m13
 | |
|     ;
 | |
|     ;                                    q2  q3  p3  p2  p1  p0  q0  q1
 | |
|     ; p6  -7                     p7  p6  p5  p4   .   .   .   .   .
 | |
|     ; p5  -6  -p7 -p6 +p5 +q1     .   .   .                           .
 | |
|     ; p4  -5  -p7 -p5 +p4 +q2     .       .   .                      q2
 | |
|     ; p3  -4  -p7 -p4 +p3 +q3     .           .   .                  q3
 | |
|     ; p2  -3  -p7 -p3 +p2 +q4     .               .   .              q4
 | |
|     ; p1  -2  -p7 -p2 +p1 +q5     .                   .   .          q5
 | |
|     ; p0  -1  -p7 -p1 +p0 +q6     .                       .   .      q6
 | |
|     ; q0  +0  -p7 -p0 +q0 +q7     .                           .   .  q7
 | |
|     ; q1  +1  -p6 -q0 +q1 +q7    q1   .                           .   .
 | |
|     ; q2  +2  -p5 -q1 +q2 +q7     .  q2   .                           .
 | |
|     ; q3  +3  -p4 -q2 +q3 +q7         .  q3   .                       .
 | |
|     ; q4  +4  -p3 -q3 +q4 +q7             .  q4   .                   .
 | |
|     ; q5  +5  -p2 -q4 +q5 +q7                 .  q5   .               .
 | |
|     ; q6  +6  -p1 -q5 +q6 +q7                     .  q6   .           .
 | |
| 
 | |
| %if %2 == 16
 | |
|     pand            m1, m2                                                              ; mask(out) & (mask(fm) & mask(in))
 | |
|     mova            m2, [P7]
 | |
|     mova            m3, [P6]
 | |
|     mova            m8, [P5]
 | |
|     mova            m9, [P4]
 | |
|     FILTER_INIT     m4, m5, m6, m7, [P6],  14,                   m1,  m3
 | |
|     FILTER_UPDATE   m6, m7, m4, m5, [P5],  m2,  m3,  m8, m13, 4, m1,  m8                ; [p5] -p7 -p6 +p5 +q1
 | |
|     FILTER_UPDATE   m4, m5, m6, m7, [P4],  m2,  m8,  m9, m13, 4, m1,  m9, m13, [Q2]     ; [p4] -p7 -p5 +p4 +q2
 | |
|     FILTER_UPDATE   m6, m7, m4, m5, [P3],  m2,  m9, m14, m13, 4, m1, m14, m13, [Q3]     ; [p3] -p7 -p4 +p3 +q3
 | |
|     FILTER_UPDATE   m4, m5, m6, m7, [P2],  m2, m14, m15, m13, 4, m1,      m13, [Q4]     ; [p2] -p7 -p3 +p2 +q4
 | |
|     FILTER_UPDATE   m6, m7, m4, m5, [P1],  m2, m15, m10, m13, 4, m1,      m13, [Q5]     ; [p1] -p7 -p2 +p1 +q5
 | |
|     FILTER_UPDATE   m4, m5, m6, m7, [P0],  m2, m10, m11, m13, 4, m1,      m13, [Q6]     ; [p0] -p7 -p1 +p0 +q6
 | |
|     FILTER_UPDATE   m6, m7, m4, m5, [Q0],  m2, m11, m12, m13, 4, m1,      m13, [Q7]     ; [q0] -p7 -p0 +q0 +q7
 | |
|     FILTER_UPDATE   m4, m5, m6, m7, [Q1],  m3, m12,  m2, m13, 4, m1,       m2, [Q1]     ; [q1] -p6 -q0 +q1 +q7
 | |
|     FILTER_UPDATE   m6, m7, m4, m5, [Q2],  m8,  m2,  m3, m13, 4, m1,       m3, [Q2]     ; [q2] -p5 -q1 +q2 +q7
 | |
|     FILTER_UPDATE   m4, m5, m6, m7, [Q3],  m9,  m3,  m8, m13, 4, m1,  m8,  m8, [Q3]     ; [q3] -p4 -q2 +q3 +q7
 | |
|     FILTER_UPDATE   m6, m7, m4, m5, [Q4], m14,  m8,  m9, m13, 4, m1,  m9,  m9, [Q4]     ; [q4] -p3 -q3 +q4 +q7
 | |
|     FILTER_UPDATE   m4, m5, m6, m7, [Q5], m15,  m9, m14, m13, 4, m1, m14, m14, [Q5]     ; [q5] -p2 -q4 +q5 +q7
 | |
|     FILTER_UPDATE   m6, m7, m4, m5, [Q6], m10, m14, m15, m13, 4, m1, m15, m15, [Q6]     ; [q6] -p1 -q5 +q6 +q7
 | |
| %endif
 | |
| 
 | |
| %ifidn %1, h
 | |
| %if %2 == 16
 | |
|     mova                    m0, [P7]
 | |
|     mova                    m1, [P6]
 | |
|     mova                    m2, [P5]
 | |
|     mova                    m3, [P4]
 | |
|     mova                    m4, [P3]
 | |
|     mova                    m5, [P2]
 | |
|     mova                    m6, [P1]
 | |
|     mova                    m7, [P0]
 | |
|     mova                    m8, [Q0]
 | |
|     mova                    m9, [Q1]
 | |
|     mova                   m10, [Q2]
 | |
|     mova                   m11, [Q3]
 | |
|     mova                   m12, [Q4]
 | |
|     mova                   m13, [Q5]
 | |
|     mova                   m14, [Q6]
 | |
|     mova                   m15, [Q7]
 | |
|     TRANSPOSE16x16B 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, [rsp]
 | |
|     DEFINE_REAL_P7_TO_Q7
 | |
|     movu  [P7],  m0
 | |
|     movu  [P6],  m1
 | |
|     movu  [P5],  m2
 | |
|     movu  [P4],  m3
 | |
|     movu  [P3],  m4
 | |
|     movu  [P2],  m5
 | |
|     movu  [P1],  m6
 | |
|     movu  [P0],  m7
 | |
|     movu  [Q0],  m8
 | |
|     movu  [Q1],  m9
 | |
|     movu  [Q2], m10
 | |
|     movu  [Q3], m11
 | |
|     movu  [Q4], m12
 | |
|     movu  [Q5], m13
 | |
|     movu  [Q6], m14
 | |
|     movu  [Q7], m15
 | |
| %elif %2 == 44
 | |
|     SWAP 0, 7   ; m0 = p1
 | |
|     SWAP 3, 4   ; m3 = q1
 | |
|     DEFINE_REAL_P7_TO_Q7 2
 | |
|     SBUTTERFLY  bw, 0, 1, 8
 | |
|     SBUTTERFLY  bw, 2, 3, 8
 | |
|     SBUTTERFLY  wd, 0, 2, 8
 | |
|     SBUTTERFLY  wd, 1, 3, 8
 | |
|     SBUTTERFLY  dq, 0, 4, 8
 | |
|     SBUTTERFLY  dq, 1, 5, 8
 | |
|     SBUTTERFLY  dq, 2, 6, 8
 | |
|     SBUTTERFLY  dq, 3, 7, 8
 | |
|     movd  [P7], m0
 | |
|     punpckhqdq m0, m8
 | |
|     movd  [P6], m0
 | |
|     movd  [Q0], m1
 | |
|     punpckhqdq  m1, m9
 | |
|     movd  [Q1], m1
 | |
|     movd  [P3], m2
 | |
|     punpckhqdq  m2, m10
 | |
|     movd  [P2], m2
 | |
|     movd  [Q4], m3
 | |
|     punpckhqdq m3, m11
 | |
|     movd  [Q5], m3
 | |
|     movd  [P5], m4
 | |
|     punpckhqdq m4, m12
 | |
|     movd  [P4], m4
 | |
|     movd  [Q2], m5
 | |
|     punpckhqdq m5, m13
 | |
|     movd  [Q3], m5
 | |
|     movd  [P1], m6
 | |
|     punpckhqdq m6, m14
 | |
|     movd  [P0], m6
 | |
|     movd  [Q6], m7
 | |
|     punpckhqdq m7, m8
 | |
|     movd  [Q7], m7
 | |
| %else
 | |
|     ; the following code do a transpose of 8 full lines to 16 half
 | |
|     ; lines (high part). It is inlined to avoid the need of a staging area
 | |
|     mova                    m0, [P3]
 | |
|     mova                    m1, [P2]
 | |
|     mova                    m2, [P1]
 | |
|     mova                    m3, [P0]
 | |
|     mova                    m4, [Q0]
 | |
|     mova                    m5, [Q1]
 | |
|     mova                    m6, [Q2]
 | |
|     mova                    m7, [Q3]
 | |
|     DEFINE_REAL_P7_TO_Q7
 | |
|     SBUTTERFLY  bw,  0,  1, 8
 | |
|     SBUTTERFLY  bw,  2,  3, 8
 | |
|     SBUTTERFLY  bw,  4,  5, 8
 | |
|     SBUTTERFLY  bw,  6,  7, 8
 | |
|     SBUTTERFLY  wd,  0,  2, 8
 | |
|     SBUTTERFLY  wd,  1,  3, 8
 | |
|     SBUTTERFLY  wd,  4,  6, 8
 | |
|     SBUTTERFLY  wd,  5,  7, 8
 | |
|     SBUTTERFLY  dq,  0,  4, 8
 | |
|     SBUTTERFLY  dq,  1,  5, 8
 | |
|     SBUTTERFLY  dq,  2,  6, 8
 | |
|     SBUTTERFLY  dq,  3,  7, 8
 | |
|     movh  [P7], m0
 | |
|     punpckhqdq m0, m8
 | |
|     movh  [P6], m0
 | |
|     movh  [Q0], m1
 | |
|     punpckhqdq  m1, m9
 | |
|     movh  [Q1], m1
 | |
|     movh  [P3], m2
 | |
|     punpckhqdq  m2, m10
 | |
|     movh  [P2], m2
 | |
|     movh  [Q4], m3
 | |
|     punpckhqdq m3, m11
 | |
|     movh  [Q5], m3
 | |
|     movh  [P5], m4
 | |
|     punpckhqdq m4, m12
 | |
|     movh  [P4], m4
 | |
|     movh  [Q2], m5
 | |
|     punpckhqdq m5, m13
 | |
|     movh  [Q3], m5
 | |
|     movh  [P1], m6
 | |
|     punpckhqdq m6, m14
 | |
|     movh  [P0], m6
 | |
|     movh  [Q6], m7
 | |
|     punpckhqdq m7, m8
 | |
|     movh  [Q7], m7
 | |
| %endif
 | |
| %endif
 | |
| 
 | |
|     RET
 | |
| %endmacro
 | |
| 
 | |
| %macro LPF_16_VH 2
 | |
| INIT_XMM %2
 | |
| cglobal vp9_loop_filter_v_%1_16, 5,10,16,      dst, stride, E, I, H, mstride, dst1, dst2, stride3, mstride3
 | |
|     LOOPFILTER v, %1
 | |
| cglobal vp9_loop_filter_h_%1_16, 5,10,16, 256, dst, stride, E, I, H, mstride, dst1, dst2, stride3, mstride3
 | |
|     LOOPFILTER h, %1
 | |
| %endmacro
 | |
| 
 | |
| %macro LPF_16_VH_ALL_OPTS 1
 | |
| LPF_16_VH %1, sse2
 | |
| LPF_16_VH %1, ssse3
 | |
| LPF_16_VH %1, avx
 | |
| %endmacro
 | |
| 
 | |
| LPF_16_VH_ALL_OPTS 16
 | |
| LPF_16_VH_ALL_OPTS 44
 | |
| LPF_16_VH_ALL_OPTS 48
 | |
| LPF_16_VH_ALL_OPTS 84
 | |
| LPF_16_VH_ALL_OPTS 88
 | |
| 
 | |
| %endif ; x86-64
 |