Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2237 insertions, 0 deletions

diff --git a/third_party/dav1d/src/x86/looprestoration_avx2.asm b/third_party/dav1d/src/x86/looprestoration_avx2.asm
new file mode 100644
index 0000000000..a73cb21882
--- /dev/null
+++ b/third_party/dav1d/src/x86/looprestoration_avx2.asm
@@ -0,0 +1,2237 @@
+; 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 "config.asm"
+%include "ext/x86/x86inc.asm"
+
+%if ARCH_X86_64
+
+SECTION_RODATA 32
+
+wiener_l_shuf: db  4,  4,  4,  4,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15
+pb_0to31:      db  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15
+               db 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
+wiener_shufA:  db  1,  7,  2,  8,  3,  9,  4, 10,  5, 11,  6, 12,  7, 13,  8, 14
+wiener_shufB:  db  2,  3,  3,  4,  4,  5,  5,  6,  6,  7,  7,  8,  8,  9,  9, 10
+wiener_shufC:  db  6,  5,  7,  6,  8,  7,  9,  8, 10,  9, 11, 10, 12, 11, 13, 12
+sgr_r_ext:     times 16 db 1
+               times 16 db 9
+
+; dword version of dav1d_sgr_x_by_x[] for use with gathers, wastes a bit of
+; cache but eliminates some shifts in the inner sgr loop which is overall a win
+const sgr_x_by_x_avx2
+              dd 255,128, 85, 64, 51, 43, 37, 32, 28, 26, 23, 21, 20, 18, 17, 16
+              dd  15, 14, 13, 13, 12, 12, 11, 11, 10, 10,  9,  9,  9,  9,  8,  8
+              dd   8,  8,  7,  7,  7,  7,  7,  6,  6,  6,  6,  6,  6,  6,  5,  5
+              dd   5,  5,  5,  5,  5,  5,  5,  5,  4,  4,  4,  4,  4,  4,  4,  4
+              dd   4,  4,  4,  4,  4,  4,  4,  4,  4,  3,  3,  3,  3,  3,  3,  3
+              dd   3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3
+              dd   3,  3,  3,  3,  3,  3,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2
+              dd   2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2
+              dd   2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2
+              dd   2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2
+              dd   2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  1,  1,  1,  1,  1,  1
+              dd   1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1
+              dd   1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1
+              dd   1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1
+              dd   1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1
+              dd   1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  0
+
+               times 4 db -1 ; needed for 16-bit sgr
+pb_m5:         times 4 db -5
+pb_3:          times 4 db 3
+pw_5_6:        dw 5, 6
+
+sgr_l_shuf:    db  0,  0,  0,  0,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11
+sgr_shuf:      db  1, -1,  2, -1,  3, -1,  4, -1,  5, -1,  6, -1,  7, -1,  8, -1
+               db  9, -1, 10, -1, 11, -1, 12, -1
+
+pw_256:        times 2 dw 256
+pw_2056:       times 2 dw 2056
+pw_m16380:     times 2 dw -16380
+pd_25:         dd 25
+pd_34816:      dd 34816
+pd_m4096:      dd -4096
+pd_0xf00801c7: dd 0xf00801c7
+pd_0xf00800a4: dd 0xf00800a4
+
+SECTION .text
+
+DECLARE_REG_TMP 8, 7, 9, 11, 12, 13, 14 ; ring buffer pointers
+
+INIT_YMM avx2
+cglobal wiener_filter7_8bpc, 4, 15, 16, -384*12-16, dst, stride, left, lpf, \
+                                                    w, h, edge, flt
+    mov           fltq, r6mp
+    movifnidn       hd, hm
+    mov          edged, r7m
+    mov             wd, wm
+    vbroadcasti128  m6, [wiener_shufA]
+    vpbroadcastb   m11, [fltq+ 0] ; x0 x0
+    vbroadcasti128  m7, [wiener_shufB]
+    vpbroadcastd   m12, [fltq+ 2]
+    vbroadcasti128  m8, [wiener_shufC]
+    packsswb       m12, m12       ; x1 x2
+    vpbroadcastw   m13, [fltq+ 6] ; x3
+    vbroadcasti128  m9, [sgr_shuf+6]
+    add           lpfq, wq
+    vpbroadcastd   m10, [pw_m16380]
+    vpbroadcastd   m14, [fltq+16] ; y0 y1
+    add           dstq, wq
+    vpbroadcastd   m15, [fltq+20] ; y2 y3
+    lea             t1, [rsp+wq*2+16]
+    psllw          m14, 5
+    neg             wq
+    psllw          m15, 5
+    test         edgeb, 4 ; LR_HAVE_TOP
+    jz .no_top
+    call .h_top
+    add           lpfq, strideq
+    mov             t6, t1
+    mov             t5, t1
+    add             t1, 384*2
+    call .h_top
+    lea            r10, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    mov             t4, t1
+    add             t1, 384*2
+    add            r10, strideq
+    mov          [rsp], r10 ; below
+    call .h
+    mov             t3, t1
+    mov             t2, t1
+    dec             hd
+    jz .v1
+    add           lpfq, strideq
+    add             t1, 384*2
+    call .h
+    mov             t2, t1
+    dec             hd
+    jz .v2
+    add           lpfq, strideq
+    add             t1, 384*2
+    call .h
+    dec             hd
+    jz .v3
+.main:
+    lea             t0, [t1+384*2]
+.main_loop:
+    call .hv
+    dec             hd
+    jnz .main_loop
+    test         edgeb, 8 ; LR_HAVE_BOTTOM
+    jz .v3
+    mov           lpfq, [rsp]
+    call .hv_bottom
+    add           lpfq, strideq
+    call .hv_bottom
+.v1:
+    call .v
+    RET
+.no_top:
+    lea            r10, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    lea            r10, [r10+strideq*2]
+    mov          [rsp], r10
+    call .h
+    mov             t6, t1
+    mov             t5, t1
+    mov             t4, t1
+    mov             t3, t1
+    mov             t2, t1
+    dec             hd
+    jz .v1
+    add           lpfq, strideq
+    add             t1, 384*2
+    call .h
+    mov             t2, t1
+    dec             hd
+    jz .v2
+    add           lpfq, strideq
+    add             t1, 384*2
+    call .h
+    dec             hd
+    jz .v3
+    lea             t0, [t1+384*2]
+    call .hv
+    dec             hd
+    jz .v3
+    add             t0, 384*8
+    call .hv
+    dec             hd
+    jnz .main
+.v3:
+    call .v
+.v2:
+    call .v
+    jmp .v1
+.extend_right:
+    movd           xm2, r10d
+    vpbroadcastd    m0, [pb_3]
+    vpbroadcastd    m1, [pb_m5]
+    vpbroadcastb    m2, xm2
+    movu            m3, [pb_0to31]
+    psubb           m0, m2
+    psubb           m1, m2
+    pminub          m0, m3
+    pminub          m1, m3
+    pshufb          m4, m0
+    pshufb          m5, m1
+    ret
+.h:
+    mov            r10, wq
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+    movd           xm4, [leftq]
+    vpblendd        m4, [lpfq+r10-4], 0xfe
+    add          leftq, 4
+    jmp .h_main
+.h_extend_left:
+    vbroadcasti128  m5, [lpfq+r10] ; avoid accessing memory located
+    mova            m4, [lpfq+r10] ; before the start of the buffer
+    palignr         m4, m5, 12
+    pshufb          m4, [wiener_l_shuf]
+    jmp .h_main
+.h_top:
+    mov            r10, wq
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+.h_loop:
+    movu            m4, [lpfq+r10-4]
+.h_main:
+    movu            m5, [lpfq+r10+4]
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .h_have_right
+    cmp           r10d, -34
+    jl .h_have_right
+    call .extend_right
+.h_have_right:
+    pshufb          m0, m4, m6
+    pmaddubsw       m0, m11
+    pshufb          m1, m5, m6
+    pmaddubsw       m1, m11
+    pshufb          m2, m4, m7
+    pmaddubsw       m2, m12
+    pshufb          m3, m5, m7
+    pmaddubsw       m3, m12
+    paddw           m0, m2
+    pshufb          m2, m4, m8
+    pmaddubsw       m2, m12
+    paddw           m1, m3
+    pshufb          m3, m5, m8
+    pmaddubsw       m3, m12
+    pshufb          m4, m9
+    paddw           m0, m2
+    pmullw          m2, m4, m13
+    pshufb          m5, m9
+    paddw           m1, m3
+    pmullw          m3, m5, m13
+    psllw           m4, 7
+    psllw           m5, 7
+    paddw           m4, m10
+    paddw           m5, m10
+    paddw           m0, m2
+    vpbroadcastd    m2, [pw_2056]
+    paddw           m1, m3
+    paddsw          m0, m4
+    paddsw          m1, m5
+    psraw           m0, 3
+    psraw           m1, 3
+    paddw           m0, m2
+    paddw           m1, m2
+    mova [t1+r10*2+ 0], m0
+    mova [t1+r10*2+32], m1
+    add            r10, 32
+    jl .h_loop
+    ret
+ALIGN function_align
+.hv:
+    add           lpfq, strideq
+    mov            r10, wq
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv_extend_left
+    movd           xm4, [leftq]
+    vpblendd        m4, [lpfq+r10-4], 0xfe
+    add          leftq, 4
+    jmp .hv_main
+.hv_extend_left:
+    movu            m4, [lpfq+r10-4]
+    pshufb          m4, [wiener_l_shuf]
+    jmp .hv_main
+.hv_bottom:
+    mov            r10, wq
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv_extend_left
+.hv_loop:
+    movu            m4, [lpfq+r10-4]
+.hv_main:
+    movu            m5, [lpfq+r10+4]
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .hv_have_right
+    cmp           r10d, -34
+    jl .hv_have_right
+    call .extend_right
+.hv_have_right:
+    pshufb          m0, m4, m6
+    pmaddubsw       m0, m11
+    pshufb          m1, m5, m6
+    pmaddubsw       m1, m11
+    pshufb          m2, m4, m7
+    pmaddubsw       m2, m12
+    pshufb          m3, m5, m7
+    pmaddubsw       m3, m12
+    paddw           m0, m2
+    pshufb          m2, m4, m8
+    pmaddubsw       m2, m12
+    paddw           m1, m3
+    pshufb          m3, m5, m8
+    pmaddubsw       m3, m12
+    pshufb          m4, m9
+    paddw           m0, m2
+    pmullw          m2, m4, m13
+    pshufb          m5, m9
+    paddw           m1, m3
+    pmullw          m3, m5, m13
+    psllw           m4, 7
+    psllw           m5, 7
+    paddw           m4, m10
+    paddw           m5, m10
+    paddw           m0, m2
+    paddw           m1, m3
+    mova            m2, [t4+r10*2]
+    paddw           m2, [t2+r10*2]
+    mova            m3, [t3+r10*2]
+    paddsw          m0, m4
+    vpbroadcastd    m4, [pw_2056]
+    paddsw          m1, m5
+    mova            m5, [t5+r10*2]
+    paddw           m5, [t1+r10*2]
+    psraw           m0, 3
+    psraw           m1, 3
+    paddw           m0, m4
+    paddw           m1, m4
+    paddw           m4, m0, [t6+r10*2]
+    mova    [t0+r10*2], m0
+    punpcklwd       m0, m2, m3
+    pmaddwd         m0, m15
+    punpckhwd       m2, m3
+    pmaddwd         m2, m15
+    punpcklwd       m3, m4, m5
+    pmaddwd         m3, m14
+    punpckhwd       m4, m5
+    pmaddwd         m4, m14
+    paddd           m0, m3
+    paddd           m4, m2
+    mova            m2, [t4+r10*2+32]
+    paddw           m2, [t2+r10*2+32]
+    mova            m3, [t3+r10*2+32]
+    mova            m5, [t5+r10*2+32]
+    paddw           m5, [t1+r10*2+32]
+    packuswb        m0, m4
+    paddw           m4, m1, [t6+r10*2+32]
+    mova [t0+r10*2+32], m1
+    punpcklwd       m1, m2, m3
+    pmaddwd         m1, m15
+    punpckhwd       m2, m3
+    pmaddwd         m2, m15
+    punpcklwd       m3, m4, m5
+    pmaddwd         m3, m14
+    punpckhwd       m4, m5
+    pmaddwd         m4, m14
+    paddd           m1, m3
+    paddd           m2, m4
+    packuswb        m1, m2
+    psrlw           m0, 8
+    psrlw           m1, 8
+    packuswb        m0, m1
+    mova    [dstq+r10], m0
+    add            r10, 32
+    jl .hv_loop
+    mov             t6, t5
+    mov             t5, t4
+    mov             t4, t3
+    mov             t3, t2
+    mov             t2, t1
+    mov             t1, t0
+    mov             t0, t6
+    add           dstq, strideq
+    ret
+.v:
+    mov            r10, wq
+.v_loop:
+    mova            m2, [t4+r10*2+ 0]
+    paddw           m2, [t2+r10*2+ 0]
+    mova            m4, [t3+r10*2+ 0]
+    mova            m6, [t1+r10*2+ 0]
+    paddw           m8, m6, [t6+r10*2+ 0]
+    paddw           m6, [t5+r10*2+ 0]
+    mova            m3, [t4+r10*2+32]
+    paddw           m3, [t2+r10*2+32]
+    mova            m5, [t3+r10*2+32]
+    mova            m7, [t1+r10*2+32]
+    paddw           m9, m7, [t6+r10*2+32]
+    paddw           m7, [t5+r10*2+32]
+    punpcklwd       m0, m2, m4
+    pmaddwd         m0, m15
+    punpckhwd       m2, m4
+    pmaddwd         m2, m15
+    punpcklwd       m4, m8, m6
+    pmaddwd         m4, m14
+    punpckhwd       m6, m8, m6
+    pmaddwd         m6, m14
+    punpcklwd       m1, m3, m5
+    pmaddwd         m1, m15
+    punpckhwd       m3, m5
+    pmaddwd         m3, m15
+    punpcklwd       m5, m9, m7
+    pmaddwd         m5, m14
+    punpckhwd       m7, m9, m7
+    pmaddwd         m7, m14
+    paddd           m0, m4
+    paddd           m2, m6
+    paddd           m1, m5
+    paddd           m3, m7
+    packuswb        m0, m2
+    packuswb        m1, m3
+    psrlw           m0, 8
+    psrlw           m1, 8
+    packuswb        m0, m1
+    mova    [dstq+r10], m0
+    add            r10, 32
+    jl .v_loop
+    mov             t6, t5
+    mov             t5, t4
+    mov             t4, t3
+    mov             t3, t2
+    mov             t2, t1
+    add           dstq, strideq
+    ret
+
+cglobal wiener_filter5_8bpc, 4, 13, 16, 384*8+16, dst, stride, left, lpf, \
+                                                  w, h, edge, flt
+    mov           fltq, r6mp
+    movifnidn       hd, hm
+    mov          edged, r7m
+    mov             wd, wm
+    vbroadcasti128  m6, [wiener_shufB]
+    vpbroadcastd   m12, [fltq+ 2]
+    vbroadcasti128  m7, [wiener_shufC]
+    packsswb       m12, m12       ; x1 x2
+    vpbroadcastw   m13, [fltq+ 6] ; x3
+    vbroadcasti128  m8, [sgr_shuf+6]
+    add           lpfq, wq
+    vpbroadcastd    m9, [pw_m16380]
+    vpbroadcastd   m10, [pw_2056]
+    mova           m11, [wiener_l_shuf]
+    vpbroadcastd   m14, [fltq+16] ; __ y1
+    add           dstq, wq
+    vpbroadcastd   m15, [fltq+20] ; y2 y3
+    lea             t1, [rsp+wq*2+16]
+    psllw          m14, 5
+    neg             wq
+    psllw          m15, 5
+    test         edgeb, 4 ; LR_HAVE_TOP
+    jz .no_top
+    call .h_top
+    add           lpfq, strideq
+    mov             t4, t1
+    add             t1, 384*2
+    call .h_top
+    lea            r10, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    mov             t3, t1
+    add             t1, 384*2
+    add            r10, strideq
+    mov          [rsp], r10 ; below
+    call .h
+    mov             t2, t1
+    dec             hd
+    jz .v1
+    add           lpfq, strideq
+    add             t1, 384*2
+    call .h
+    dec             hd
+    jz .v2
+.main:
+    mov             t0, t4
+.main_loop:
+    call .hv
+    dec             hd
+    jnz .main_loop
+    test         edgeb, 8 ; LR_HAVE_BOTTOM
+    jz .v2
+    mov           lpfq, [rsp]
+    call .hv_bottom
+    add           lpfq, strideq
+    call .hv_bottom
+.end:
+    RET
+.no_top:
+    lea            r10, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    lea            r10, [r10+strideq*2]
+    mov          [rsp], r10
+    call .h
+    mov             t4, t1
+    mov             t3, t1
+    mov             t2, t1
+    dec             hd
+    jz .v1
+    add           lpfq, strideq
+    add             t1, 384*2
+    call .h
+    dec             hd
+    jz .v2
+    lea             t0, [t1+384*2]
+    call .hv
+    dec             hd
+    jz .v2
+    add             t0, 384*6
+    call .hv
+    dec             hd
+    jnz .main
+.v2:
+    call .v
+    mov             t4, t3
+    mov             t3, t2
+    mov             t2, t1
+    add           dstq, strideq
+.v1:
+    call .v
+    jmp .end
+.h:
+    mov            r10, wq
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+    movd           xm4, [leftq]
+    vpblendd        m4, [lpfq+r10-4], 0xfe
+    add          leftq, 4
+    jmp .h_main
+.h_extend_left:
+    vbroadcasti128  m5, [lpfq+r10] ; avoid accessing memory located
+    mova            m4, [lpfq+r10] ; before the start of the buffer
+    palignr         m4, m5, 12
+    pshufb          m4, m11
+    jmp .h_main
+.h_top:
+    mov            r10, wq
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+.h_loop:
+    movu            m4, [lpfq+r10-4]
+.h_main:
+    movu            m5, [lpfq+r10+4]
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .h_have_right
+    cmp           r10d, -33
+    jl .h_have_right
+    call mangle(private_prefix %+ _wiener_filter7_8bpc_avx2).extend_right
+.h_have_right:
+    pshufb          m0, m4, m6
+    pmaddubsw       m0, m12
+    pshufb          m1, m5, m6
+    pmaddubsw       m1, m12
+    pshufb          m2, m4, m7
+    pmaddubsw       m2, m12
+    pshufb          m3, m5, m7
+    pmaddubsw       m3, m12
+    pshufb          m4, m8
+    paddw           m0, m2
+    pmullw          m2, m4, m13
+    pshufb          m5, m8
+    paddw           m1, m3
+    pmullw          m3, m5, m13
+    psllw           m4, 7
+    psllw           m5, 7
+    paddw           m4, m9
+    paddw           m5, m9
+    paddw           m0, m2
+    paddw           m1, m3
+    paddsw          m0, m4
+    paddsw          m1, m5
+    psraw           m0, 3
+    psraw           m1, 3
+    paddw           m0, m10
+    paddw           m1, m10
+    mova [t1+r10*2+ 0], m0
+    mova [t1+r10*2+32], m1
+    add            r10, 32
+    jl .h_loop
+    ret
+ALIGN function_align
+.hv:
+    add           lpfq, strideq
+    mov            r10, wq
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv_extend_left
+    movd           xm4, [leftq]
+    vpblendd        m4, [lpfq+r10-4], 0xfe
+    add          leftq, 4
+    jmp .hv_main
+.hv_extend_left:
+    movu            m4, [lpfq+r10-4]
+    pshufb          m4, m11
+    jmp .hv_main
+.hv_bottom:
+    mov            r10, wq
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv_extend_left
+.hv_loop:
+    movu            m4, [lpfq+r10-4]
+.hv_main:
+    movu            m5, [lpfq+r10+4]
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .hv_have_right
+    cmp           r10d, -33
+    jl .hv_have_right
+    call mangle(private_prefix %+ _wiener_filter7_8bpc_avx2).extend_right
+.hv_have_right:
+    pshufb          m0, m4, m6
+    pmaddubsw       m0, m12
+    pshufb          m1, m5, m6
+    pmaddubsw       m1, m12
+    pshufb          m2, m4, m7
+    pmaddubsw       m2, m12
+    pshufb          m3, m5, m7
+    pmaddubsw       m3, m12
+    pshufb          m4, m8
+    paddw           m0, m2
+    pmullw          m2, m4, m13
+    pshufb          m5, m8
+    paddw           m1, m3
+    pmullw          m3, m5, m13
+    psllw           m4, 7
+    psllw           m5, 7
+    paddw           m4, m9
+    paddw           m5, m9
+    paddw           m0, m2
+    paddw           m1, m3
+    mova            m2, [t3+r10*2]
+    paddw           m2, [t1+r10*2]
+    mova            m3, [t2+r10*2]
+    paddsw          m0, m4
+    paddsw          m1, m5
+    psraw           m0, 3
+    psraw           m1, 3
+    paddw           m0, m10
+    paddw           m1, m10
+    paddw           m4, m0, [t4+r10*2]
+    mova    [t0+r10*2], m0
+    punpcklwd       m0, m2, m3
+    pmaddwd         m0, m15
+    punpckhwd       m2, m3
+    pmaddwd         m2, m15
+    punpcklwd       m3, m4, m4
+    pmaddwd         m3, m14
+    punpckhwd       m4, m4
+    pmaddwd         m4, m14
+    paddd           m0, m3
+    paddd           m4, m2
+    mova            m2, [t3+r10*2+32]
+    paddw           m2, [t1+r10*2+32]
+    mova            m3, [t2+r10*2+32]
+    packuswb        m0, m4
+    paddw           m4, m1, [t4+r10*2+32]
+    mova [t0+r10*2+32], m1
+    punpcklwd       m1, m2, m3
+    pmaddwd         m1, m15
+    punpckhwd       m2, m3
+    pmaddwd         m2, m15
+    punpcklwd       m3, m4, m4
+    pmaddwd         m3, m14
+    punpckhwd       m4, m4
+    pmaddwd         m4, m14
+    paddd           m1, m3
+    paddd           m2, m4
+    packuswb        m1, m2
+    psrlw           m0, 8
+    psrlw           m1, 8
+    packuswb        m0, m1
+    mova    [dstq+r10], m0
+    add            r10, 32
+    jl .hv_loop
+    mov             t4, t3
+    mov             t3, t2
+    mov             t2, t1
+    mov             t1, t0
+    mov             t0, t4
+    add           dstq, strideq
+    ret
+.v:
+    mov            r10, wq
+    psrld          m13, m14, 16 ; y1 __
+.v_loop:
+    mova            m6, [t1+r10*2+ 0]
+    paddw           m2, m6, [t3+r10*2+ 0]
+    mova            m4, [t2+r10*2+ 0]
+    mova            m7, [t1+r10*2+32]
+    paddw           m3, m7, [t3+r10*2+32]
+    mova            m5, [t2+r10*2+32]
+    paddw           m6, [t4+r10*2+ 0]
+    paddw           m7, [t4+r10*2+32]
+    punpcklwd       m0, m2, m4
+    pmaddwd         m0, m15
+    punpckhwd       m2, m4
+    pmaddwd         m2, m15
+    punpcklwd       m1, m3, m5
+    pmaddwd         m1, m15
+    punpckhwd       m3, m5
+    pmaddwd         m3, m15
+    punpcklwd       m5, m7, m6
+    pmaddwd         m4, m5, m14
+    punpckhwd       m7, m6
+    pmaddwd         m6, m7, m14
+    pmaddwd         m5, m13
+    pmaddwd         m7, m13
+    paddd           m0, m4
+    paddd           m2, m6
+    paddd           m1, m5
+    paddd           m3, m7
+    packuswb        m0, m2
+    packuswb        m1, m3
+    psrlw           m0, 8
+    psrlw           m1, 8
+    packuswb        m0, m1
+    mova    [dstq+r10], m0
+    add            r10, 32
+    jl .v_loop
+    ret
+
+cglobal sgr_filter_5x5_8bpc, 4, 13, 16, 400*24+16, dst, stride, left, lpf, \
+                                                   w, h, edge, params
+%define base r12-sgr_x_by_x_avx2-256*4
+    lea            r12, [sgr_x_by_x_avx2+256*4]
+    mov        paramsq, r6mp
+    mov             wd, wm
+    movifnidn       hd, hm
+    mov          edged, r7m
+    vbroadcasti128  m8, [base+sgr_shuf+0]
+    vbroadcasti128  m9, [base+sgr_shuf+8]
+    add           lpfq, wq
+    vbroadcasti128 m10, [base+sgr_shuf+2]
+    add           dstq, wq
+    vbroadcasti128 m11, [base+sgr_shuf+6]
+    lea             t3, [rsp+wq*4+16+400*12]
+    vpbroadcastd   m12, [paramsq+0] ; s0
+    pxor            m6, m6
+    vpbroadcastw    m7, [paramsq+8] ; w0
+    lea             t1, [rsp+wq*2+20]
+    vpbroadcastd   m13, [base+pd_0xf00800a4]
+    neg             wq
+    vpbroadcastd   m14, [base+pd_34816]  ; (1 << 11) + (1 << 15)
+    psllw           m7, 4
+    vpbroadcastd   m15, [base+pd_m4096]
+    test         edgeb, 4 ; LR_HAVE_TOP
+    jz .no_top
+    call .h_top
+    add           lpfq, strideq
+    mov             t2, t1
+    call .top_fixup
+    add             t1, 400*6
+    call .h_top
+    lea            r10, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    add            r10, strideq
+    mov          [rsp], r10 ; below
+    mov             t0, t2
+    dec             hd
+    jz .height1
+    or           edged, 16
+    call .h
+.main:
+    add           lpfq, strideq
+    call .hv
+    call .prep_n
+    sub             hd, 2
+    jl .extend_bottom
+.main_loop:
+    add           lpfq, strideq
+    test            hd, hd
+    jz .odd_height
+    call .h
+    add           lpfq, strideq
+    call .hv
+    call .n0
+    call .n1
+    sub             hd, 2
+    jge .main_loop
+    test         edgeb, 8 ; LR_HAVE_BOTTOM
+    jz .extend_bottom
+    mov           lpfq, [rsp]
+    call .h_top
+    add           lpfq, strideq
+    call .hv_bottom
+.end:
+    call .n0
+    call .n1
+.end2:
+    RET
+.height1:
+    call .hv
+    call .prep_n
+    jmp .odd_height_end
+.odd_height:
+    call .hv
+    call .n0
+    call .n1
+.odd_height_end:
+    call .v
+    call .n0
+    jmp .end2
+.extend_bottom:
+    call .v
+    jmp .end
+.no_top:
+    lea            r10, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    lea            r10, [r10+strideq*2]
+    mov          [rsp], r10
+    call .h
+    lea             t2, [t1+400*6]
+    call .top_fixup
+    dec             hd
+    jz .no_top_height1
+    or           edged, 16
+    mov             t0, t1
+    mov             t1, t2
+    jmp .main
+.no_top_height1:
+    call .v
+    call .prep_n
+    jmp .odd_height_end
+.extend_right:
+    movd           xm2, r10d
+    mova            m0, [sgr_r_ext]
+    vpbroadcastb    m2, xm2
+    psubb           m0, m2
+    pminub          m0, [pb_0to31]
+    pshufb          m5, m0
+    ret
+.h: ; horizontal boxsum
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+    vpbroadcastd   xm0, [leftq]
+    mova           xm5, [lpfq+wq]
+    palignr        xm5, xm0, 12
+    add          leftq, 4
+    jmp .h_main
+.h_extend_left:
+    mova           xm5, [lpfq+wq]
+    pshufb         xm5, [base+sgr_l_shuf]
+    jmp .h_main
+.h_top:
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+.h_loop:
+    movu           xm5, [lpfq+r10-2]
+.h_main:
+    vinserti128     m5, [lpfq+r10+6], 1
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .h_have_right
+    cmp           r10d, -18
+    jl .h_have_right
+    call .extend_right
+.h_have_right:
+    pshufb          m3, m5, m8
+    pmullw          m4, m3, m3
+    pshufb          m2, m5, m9
+    paddw           m0, m3, m2
+    shufps          m3, m2, q2121
+    paddw           m0, m3
+    punpcklwd       m1, m2, m3
+    pmaddwd         m1, m1
+    punpckhwd       m2, m3
+    pmaddwd         m2, m2
+    punpcklwd       m3, m4, m6
+    paddd           m1, m3
+    punpckhwd       m4, m6
+    paddd           m2, m4
+    pshufb          m4, m5, m10
+    paddw           m0, m4
+    pshufb          m5, m11
+    paddw           m0, m5 ; sum
+    punpcklwd       m3, m4, m5
+    pmaddwd         m3, m3
+    punpckhwd       m4, m5
+    pmaddwd         m4, m4
+    test         edgeb, 16 ; y > 0
+    jz .h_loop_end
+    paddw           m0, [t1+r10*2+400*0]
+    paddd           m1, [t1+r10*2+400*2]
+    paddd           m2, [t1+r10*2+400*4]
+.h_loop_end:
+    paddd           m1, m3 ; sumsq
+    paddd           m2, m4
+    mova [t1+r10*2+400*0], m0
+    mova [t1+r10*2+400*2], m1
+    mova [t1+r10*2+400*4], m2
+    add            r10, 16
+    jl .h_loop
+    ret
+.top_fixup:
+    lea            r10, [wq-2]
+.top_fixup_loop: ; the sums of the first row needs to be doubled
+    mova            m0, [t1+r10*2+400*0]
+    mova            m1, [t1+r10*2+400*2]
+    mova            m2, [t1+r10*2+400*4]
+    paddw           m0, m0
+    paddd           m1, m1
+    paddd           m2, m2
+    mova [t2+r10*2+400*0], m0
+    mova [t2+r10*2+400*2], m1
+    mova [t2+r10*2+400*4], m2
+    add            r10, 16
+    jl .top_fixup_loop
+    ret
+ALIGN function_align
+.hv: ; horizontal boxsum + vertical boxsum + ab
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv_extend_left
+    vpbroadcastd   xm0, [leftq]
+    mova           xm5, [lpfq+wq]
+    palignr        xm5, xm0, 12
+    add          leftq, 4
+    jmp .hv_main
+.hv_extend_left:
+    mova           xm5, [lpfq+wq]
+    pshufb         xm5, [base+sgr_l_shuf]
+    jmp .hv_main
+.hv_bottom:
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv_extend_left
+.hv_loop:
+    movu           xm5, [lpfq+r10-2]
+.hv_main:
+    vinserti128     m5, [lpfq+r10+6], 1
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .hv_have_right
+    cmp           r10d, -18
+    jl .hv_have_right
+    call .extend_right
+.hv_have_right:
+    pshufb          m1, m5, m8
+    pmullw          m4, m1, m1
+    pshufb          m3, m5, m9
+    paddw           m0, m1, m3
+    shufps          m1, m3, q2121
+    paddw           m0, m1
+    punpcklwd       m2, m3, m1
+    pmaddwd         m2, m2
+    punpckhwd       m3, m1
+    pmaddwd         m3, m3
+    punpcklwd       m1, m4, m6
+    paddd           m2, m1
+    punpckhwd       m4, m6
+    paddd           m3, m4
+    pshufb          m1, m5, m10
+    paddw           m0, m1
+    pshufb          m5, m11
+    paddw           m0, m5               ; h sum
+    punpcklwd       m4, m5, m1
+    pmaddwd         m4, m4
+    punpckhwd       m5, m1
+    pmaddwd         m5, m5
+    paddw           m1, m0, [t1+r10*2+400*0]
+    paddd           m2, m4               ; h sumsq
+    paddd           m3, m5
+    paddd           m4, m2, [t1+r10*2+400*2]
+    paddd           m5, m3, [t1+r10*2+400*4]
+    test            hd, hd
+    jz .hv_last_row
+.hv_main2:
+    paddw           m1, [t2+r10*2+400*0] ; hv sum
+    paddd           m4, [t2+r10*2+400*2] ; hv sumsq
+    paddd           m5, [t2+r10*2+400*4]
+    mova [t0+r10*2+400*0], m0
+    mova [t0+r10*2+400*2], m2
+    mova [t0+r10*2+400*4], m3
+    vpbroadcastd    m2, [pd_25]
+    punpcklwd       m0, m1, m6           ; b
+    punpckhwd       m1, m6
+    pmulld          m4, m2               ; a * 25
+    pmulld          m5, m2
+    pmaddwd         m2, m0, m0           ; b * b
+    pmaddwd         m3, m1, m1
+    psubd           m4, m2               ; p
+    psubd           m5, m3
+    pmulld          m4, m12              ; p * s
+    pmulld          m5, m12
+    pmaddwd         m0, m13              ; b * 164
+    pmaddwd         m1, m13
+    paddusw         m4, m13
+    paddusw         m5, m13
+    psrad           m3, m4, 20           ; min(z, 255) - 256
+    vpgatherdd      m2, [r12+m3*4], m4   ; x
+    psrad           m4, m5, 20
+    vpgatherdd      m3, [r12+m4*4], m5
+    pmulld          m0, m2
+    pmulld          m1, m3
+    paddd           m0, m14              ; x * b * 164 + (1 << 11) + (1 << 15)
+    paddd           m1, m14
+    pand            m0, m15
+    pand            m1, m15
+    por             m0, m2               ; a | (b << 12)
+    por             m1, m3
+    mova         [t3+r10*4+ 8], xm0      ; The neighbor calculations requires
+    vextracti128 [t3+r10*4+40], m0, 1    ; 13 bits for a and 21 bits for b.
+    mova         [t3+r10*4+24], xm1      ; Packing them allows for 12+20, but
+    vextracti128 [t3+r10*4+56], m1, 1    ; that gets us most of the way.
+    add            r10, 16
+    jl .hv_loop
+    mov             t2, t1
+    mov             t1, t0
+    mov             t0, t2
+    ret
+.hv_last_row: ; esoteric edge case for odd heights
+    mova [t1+r10*2+400*0], m1
+    paddw              m1, m0
+    mova [t1+r10*2+400*2], m4
+    paddd              m4, m2
+    mova [t1+r10*2+400*4], m5
+    paddd              m5, m3
+    jmp .hv_main2
+.v: ; vertical boxsum + ab
+    lea            r10, [wq-2]
+.v_loop:
+    mova            m0, [t1+r10*2+400*0]
+    mova            m2, [t1+r10*2+400*2]
+    mova            m3, [t1+r10*2+400*4]
+    paddw           m1, m0, [t2+r10*2+400*0]
+    paddd           m4, m2, [t2+r10*2+400*2]
+    paddd           m5, m3, [t2+r10*2+400*4]
+    paddw           m0, m0
+    paddd           m2, m2
+    paddd           m3, m3
+    paddw           m1, m0               ; hv sum
+    paddd           m4, m2               ; hv sumsq
+    paddd           m5, m3
+    vpbroadcastd    m2, [pd_25]
+    punpcklwd       m0, m1, m6           ; b
+    punpckhwd       m1, m6
+    pmulld          m4, m2               ; a * 25
+    pmulld          m5, m2
+    pmaddwd         m2, m0, m0           ; b * b
+    pmaddwd         m3, m1, m1
+    psubd           m4, m2               ; p
+    psubd           m5, m3
+    pmulld          m4, m12              ; p * s
+    pmulld          m5, m12
+    pmaddwd         m0, m13              ; b * 164
+    pmaddwd         m1, m13
+    paddusw         m4, m13
+    paddusw         m5, m13
+    psrad           m3, m4, 20           ; min(z, 255) - 256
+    vpgatherdd      m2, [r12+m3*4], m4   ; x
+    psrad           m4, m5, 20
+    vpgatherdd      m3, [r12+m4*4], m5
+    pmulld          m0, m2
+    pmulld          m1, m3
+    paddd           m0, m14              ; x * b * 164 + (1 << 11) + (1 << 15)
+    paddd           m1, m14
+    pand            m0, m15
+    pand            m1, m15
+    por             m0, m2               ; a | (b << 12)
+    por             m1, m3
+    mova         [t3+r10*4+ 8], xm0
+    vextracti128 [t3+r10*4+40], m0, 1
+    mova         [t3+r10*4+24], xm1
+    vextracti128 [t3+r10*4+56], m1, 1
+    add            r10, 16
+    jl .v_loop
+    ret
+.prep_n: ; initial neighbor setup
+    mov            r10, wq
+.prep_n_loop:
+    movu            m0, [t3+r10*4+ 4]
+    movu            m1, [t3+r10*4+36]
+    paddd           m2, m0, [t3+r10*4+ 0]
+    paddd           m3, m1, [t3+r10*4+32]
+    paddd           m2, [t3+r10*4+ 8]
+    paddd           m3, [t3+r10*4+40]
+    paddd           m0, m2
+    pslld           m2, 2
+    paddd           m1, m3
+    pslld           m3, 2
+    paddd           m2, m0                ; ab 565
+    paddd           m3, m1
+    pandn           m0, m15, m2           ; a
+    psrld           m2, 12                ; b
+    pandn           m1, m15, m3
+    psrld           m3, 12
+    mova [t3+r10*4+400*4+ 0], m0
+    mova [t3+r10*4+400*8+ 0], m2
+    mova [t3+r10*4+400*4+32], m1
+    mova [t3+r10*4+400*8+32], m3
+    add            r10, 16
+    jl .prep_n_loop
+    ret
+ALIGN function_align
+.n0: ; neighbor + output (even rows)
+    mov            r10, wq
+.n0_loop:
+    movu            m0, [t3+r10*4+ 4]
+    movu            m1, [t3+r10*4+36]
+    paddd           m2, m0, [t3+r10*4+ 0]
+    paddd           m3, m1, [t3+r10*4+32]
+    paddd           m2, [t3+r10*4+ 8]
+    paddd           m3, [t3+r10*4+40]
+    paddd           m0, m2
+    pslld           m2, 2
+    paddd           m1, m3
+    pslld           m3, 2
+    paddd           m2, m0
+    paddd           m3, m1
+    pandn           m0, m15, m2
+    psrld           m2, 12
+    pandn           m1, m15, m3
+    psrld           m3, 12
+    paddd           m4, m0, [t3+r10*4+400*4+ 0] ; a
+    paddd           m5, m1, [t3+r10*4+400*4+32]
+    mova [t3+r10*4+400*4+ 0], m0
+    mova [t3+r10*4+400*4+32], m1
+    paddd           m0, m2, [t3+r10*4+400*8+ 0] ; b
+    paddd           m1, m3, [t3+r10*4+400*8+32]
+    mova [t3+r10*4+400*8+ 0], m2
+    mova [t3+r10*4+400*8+32], m3
+    pmovzxbd        m2, [dstq+r10+0]
+    pmovzxbd        m3, [dstq+r10+8]
+    pmaddwd         m4, m2 ; a * src
+    pmaddwd         m5, m3
+    packssdw        m2, m3
+    psubd           m0, m4 ; b - a * src + (1 << 8)
+    psubd           m1, m5
+    psrad           m0, 9
+    psrad           m1, 9
+    packssdw        m0, m1
+    pmulhrsw        m0, m7
+    paddw           m0, m2
+    vextracti128   xm1, m0, 1
+    packuswb       xm0, xm1
+    pshufd         xm0, xm0, q3120
+    mova    [dstq+r10], xm0
+    add            r10, 16
+    jl .n0_loop
+    add           dstq, strideq
+    ret
+ALIGN function_align
+.n1: ; neighbor + output (odd rows)
+    mov            r10, wq
+.n1_loop:
+    pmovzxbd        m2, [dstq+r10+0]
+    pmovzxbd        m3, [dstq+r10+8]
+    pmaddwd         m4, m2, [t3+r10*4+400*4+ 0] ; a * src
+    pmaddwd         m5, m3, [t3+r10*4+400*4+32]
+    mova            m0, [t3+r10*4+400*8+ 0]     ; b
+    mova            m1, [t3+r10*4+400*8+32]
+    packssdw        m2, m3
+    psubd           m0, m4                      ; b - a * src + (1 << 7)
+    psubd           m1, m5
+    psrad           m0, 8
+    psrad           m1, 8
+    packssdw        m0, m1
+    pmulhrsw        m0, m7
+    paddw           m0, m2
+    vextracti128   xm1, m0, 1
+    packuswb       xm0, xm1
+    pshufd         xm0, xm0, q3120
+    mova    [dstq+r10], xm0
+    add            r10, 16
+    jl .n1_loop
+    add           dstq, strideq
+    ret
+
+cglobal sgr_filter_3x3_8bpc, 4, 15, 15, -400*28-16, dst, stride, left, lpf, \
+                                                    w, h, edge, params
+%define base r14-sgr_x_by_x_avx2-256*4
+    mov        paramsq, r6mp
+    mov             wd, wm
+    movifnidn       hd, hm
+    mov          edged, r7m
+    lea            r14, [sgr_x_by_x_avx2+256*4]
+    vbroadcasti128  m8, [base+sgr_shuf+2]
+    add           lpfq, wq
+    vbroadcasti128  m9, [base+sgr_shuf+4]
+    add           dstq, wq
+    vbroadcasti128 m10, [base+sgr_shuf+6]
+    lea             t3, [rsp+wq*4+16+400*12]
+    vpbroadcastd   m11, [paramsq+ 4] ; s1
+    pxor            m6, m6
+    vpbroadcastw    m7, [paramsq+10] ; w1
+    lea             t1, [rsp+wq*2+20]
+    vpbroadcastd   m12, [base+pd_0xf00801c7]
+    neg             wq
+    vpbroadcastd   m13, [base+pd_34816] ; (1 << 11) + (1 << 15)
+    psllw           m7, 4
+    vpbroadcastd   m14, [base+pd_m4096]
+    test         edgeb, 4 ; LR_HAVE_TOP
+    jz .no_top
+    call .h_top
+    add           lpfq, strideq
+    mov             t2, t1
+    add             t1, 400*6
+    call .h_top
+    lea             t4, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    add             t4, strideq
+    mov          [rsp], t4 ; below
+    mov             t0, t2
+    call .hv
+.main:
+    mov             t5, t3
+    add             t3, 400*4
+    dec             hd
+    jz .height1
+    add           lpfq, strideq
+    call .hv
+    call .prep_n
+    dec             hd
+    jz .extend_bottom
+.main_loop:
+    add           lpfq, strideq
+    call .hv
+    call .n
+    dec             hd
+    jnz .main_loop
+    test         edgeb, 8 ; LR_HAVE_BOTTOM
+    jz .extend_bottom
+    mov           lpfq, [rsp]
+    call .hv_bottom
+    call .n
+    add           lpfq, strideq
+    call .hv_bottom
+.end:
+    call .n
+    RET
+.height1:
+    call .v
+    call .prep_n
+    mov             t2, t1
+    call .v
+    jmp .end
+.extend_bottom:
+    call .v
+    call .n
+    mov             t2, t1
+    call .v
+    jmp .end
+.no_top:
+    lea             t4, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    lea             t4, [t4+strideq*2]
+    mov          [rsp], t4
+    call .h
+    lea             t0, [t1+400*6]
+    mov             t2, t1
+    call .v
+    jmp .main
+.h: ; horizontal boxsum
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+    vpbroadcastd   xm0, [leftq]
+    mova           xm5, [lpfq+wq]
+    palignr        xm5, xm0, 12
+    add          leftq, 4
+    jmp .h_main
+.h_extend_left:
+    mova           xm5, [lpfq+wq]
+    pshufb         xm5, [base+sgr_l_shuf]
+    jmp .h_main
+.h_top:
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+.h_loop:
+    movu           xm5, [lpfq+r10-2]
+.h_main:
+    vinserti128     m5, [lpfq+r10+6], 1
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .h_have_right
+    cmp           r10d, -17
+    jl .h_have_right
+    call mangle(private_prefix %+ _sgr_filter_5x5_8bpc_avx2).extend_right
+.h_have_right:
+    pshufb          m0, m5, m8
+    pmullw          m2, m0, m0
+    pshufb          m4, m5, m9
+    paddw           m0, m4
+    pshufb          m5, m10
+    paddw           m0, m5 ; sum
+    punpcklwd       m3, m4, m5
+    pmaddwd         m3, m3
+    punpckhwd       m4, m5
+    pmaddwd         m4, m4
+    punpcklwd       m1, m2, m6
+    punpckhwd       m2, m6
+    mova [t1+r10*2+400*0], m0
+    paddd           m1, m3 ; sumsq
+    paddd           m2, m4
+    mova [t1+r10*2+400*2], m1
+    mova [t1+r10*2+400*4], m2
+    add            r10, 16
+    jl .h_loop
+    ret
+ALIGN function_align
+.hv: ; horizontal boxsum + vertical boxsum + ab
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv_extend_left
+    vpbroadcastd   xm0, [leftq]
+    mova           xm5, [lpfq+wq]
+    palignr        xm5, xm0, 12
+    add          leftq, 4
+    jmp .hv_main
+.hv_extend_left:
+    mova           xm5, [lpfq+wq]
+    pshufb         xm5, [base+sgr_l_shuf]
+    jmp .hv_main
+.hv_bottom:
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv_extend_left
+.hv_loop:
+    movu           xm5, [lpfq+r10-2]
+.hv_main:
+    vinserti128     m5, [lpfq+r10+6], 1
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .hv_have_right
+    cmp           r10d, -17
+    jl .hv_have_right
+    call mangle(private_prefix %+ _sgr_filter_5x5_8bpc_avx2).extend_right
+.hv_have_right:
+    pshufb          m0, m5, m8
+    pmullw          m3, m0, m0
+    pshufb          m1, m5, m9
+    paddw           m0, m1
+    pshufb          m5, m10
+    paddw           m0, m5               ; h sum
+    punpcklwd       m4, m5, m1
+    pmaddwd         m4, m4
+    punpckhwd       m5, m1
+    pmaddwd         m5, m5
+    paddw           m1, m0, [t2+r10*2+400*0]
+    paddw           m1, [t1+r10*2+400*0] ; hv sum
+    punpcklwd       m2, m3, m6
+    punpckhwd       m3, m6
+    paddd           m4, m2               ; h sumsq
+    paddd           m5, m3
+    paddd           m2, m4, [t2+r10*2+400*2]
+    paddd           m3, m5, [t2+r10*2+400*4]
+    paddd           m2, [t1+r10*2+400*2] ; hv sumsq
+    paddd           m3, [t1+r10*2+400*4]
+    mova [t0+r10*2+400*0], m0
+    punpcklwd       m0, m1, m6           ; b
+    punpckhwd       m1, m6
+    mova [t0+r10*2+400*2], m4
+    pslld           m4, m2, 3
+    mova [t0+r10*2+400*4], m5
+    pslld           m5, m3, 3
+    paddd           m4, m2               ; a * 9
+    pmaddwd         m2, m0, m0           ; b * b
+    paddd           m5, m3
+    pmaddwd         m3, m1, m1
+    psubd           m4, m2               ; p
+    psubd           m5, m3
+    pmulld          m4, m11              ; p * s
+    pmulld          m5, m11
+    pmaddwd         m0, m12              ; b * 455
+    pmaddwd         m1, m12
+    paddusw         m4, m12
+    paddusw         m5, m12
+    psrad           m3, m4, 20           ; min(z, 255) - 256
+    vpgatherdd      m2, [r14+m3*4], m4
+    psrad           m4, m5, 20
+    vpgatherdd      m3, [r14+m4*4], m5
+    pmulld          m0, m2
+    pmulld          m1, m3
+    paddd           m0, m13              ; x * b * 455 + (1 << 11) + (1 << 15)
+    paddd           m1, m13
+    pand            m0, m14
+    pand            m1, m14
+    por             m0, m2               ; a | (b << 12)
+    por             m1, m3
+    mova         [t3+r10*4+ 8], xm0
+    vextracti128 [t3+r10*4+40], m0, 1
+    mova         [t3+r10*4+24], xm1
+    vextracti128 [t3+r10*4+56], m1, 1
+    add            r10, 16
+    jl .hv_loop
+    mov             t2, t1
+    mov             t1, t0
+    mov             t0, t2
+    ret
+.v: ; vertical boxsum + ab
+    lea            r10, [wq-2]
+.v_loop:
+    mova            m1, [t1+r10*2+400*0]
+    paddw           m1, m1
+    paddw           m1, [t2+r10*2+400*0] ; hv sum
+    mova            m2, [t1+r10*2+400*2]
+    mova            m3, [t1+r10*2+400*4]
+    paddd           m2, m2
+    paddd           m3, m3
+    paddd           m2, [t2+r10*2+400*2] ; hv sumsq
+    paddd           m3, [t2+r10*2+400*4]
+    punpcklwd       m0, m1, m6           ; b
+    punpckhwd       m1, m6
+    pslld           m4, m2, 3
+    pslld           m5, m3, 3
+    paddd           m4, m2               ; a * 9
+    pmaddwd         m2, m0, m0           ; b * b
+    paddd           m5, m3
+    pmaddwd         m3, m1, m1
+    psubd           m4, m2               ; p
+    psubd           m5, m3
+    pmulld          m4, m11              ; p * s
+    pmulld          m5, m11
+    pmaddwd         m0, m12              ; b * 455
+    pmaddwd         m1, m12
+    paddusw         m4, m12
+    paddusw         m5, m12
+    psrad           m3, m4, 20           ; min(z, 255) - 256
+    vpgatherdd      m2, [r14+m3*4], m4
+    psrad           m4, m5, 20
+    vpgatherdd      m3, [r14+m4*4], m5
+    pmulld          m0, m2
+    pmulld          m1, m3
+    paddd           m0, m13              ; x * b * 455 + (1 << 11) + (1 << 15)
+    paddd           m1, m13
+    pand            m0, m14
+    pand            m1, m14
+    por             m0, m2               ; a | (b << 12)
+    por             m1, m3
+    mova         [t3+r10*4+ 8], xm0
+    vextracti128 [t3+r10*4+40], m0, 1
+    mova         [t3+r10*4+24], xm1
+    vextracti128 [t3+r10*4+56], m1, 1
+    add            r10, 16
+    jl .v_loop
+    ret
+.prep_n: ; initial neighbor setup
+    mov            r10, wq
+    mov             t4, t3
+    add             t3, 400*4
+.prep_n_loop:
+    mova            m2, [t5+r10*4+0]
+    mova            m3, [t4+r10*4+0]
+    paddd           m2, [t5+r10*4+8]
+    paddd           m3, [t4+r10*4+8]
+    paddd           m0, m2, [t5+r10*4+4]
+    paddd           m1, m3, [t4+r10*4+4]
+    pslld           m0, 2
+    paddd           m1, m1                ; ab[ 0] 222
+    psubd           m0, m2                ; ab[-1] 343
+    mova [t3+r10*4+400*4], m1
+    paddd           m1, m1
+    mova    [t5+r10*4], m0
+    psubd           m1, m3                ; ab[ 0] 343
+    mova    [t4+r10*4], m1
+    add            r10, 8
+    jl .prep_n_loop
+    ret
+; a+b are packed together in a single dword, but we can't do the
+; full neighbor calculations before splitting them since we don't
+; have sufficient precision. The solution is to do the calculations
+; in two equal halves and split a and b before doing the final sum.
+ALIGN function_align
+.n: ; neighbor + output
+    mov            r10, wq
+.n_loop:
+    mova            m4, [t3+r10*4+ 0]
+    paddd           m4, [t3+r10*4+ 8]
+    paddd           m5, m4, [t3+r10*4+ 4]
+    paddd           m5, m5                ; ab[+1] 222
+    mova            m2, [t3+r10*4+400*4+ 0]
+    paddd           m0, m2, [t5+r10*4+ 0] ; ab[ 0] 222 + ab[-1] 343
+    mova            m3, [t3+r10*4+400*4+32]
+    paddd           m1, m3, [t5+r10*4+32]
+    mova [t3+r10*4+400*4+ 0], m5
+    paddd           m5, m5
+    psubd           m5, m4                ; ab[+1] 343
+    mova [t5+r10*4+ 0], m5
+    paddd           m2, m5                ; ab[ 0] 222 + ab[+1] 343
+    mova            m4, [t3+r10*4+32]
+    paddd           m4, [t3+r10*4+40]
+    paddd           m5, m4, [t3+r10*4+36]
+    paddd           m5, m5
+    mova [t3+r10*4+400*4+32], m5
+    paddd           m5, m5
+    psubd           m5, m4
+    mova [t5+r10*4+32], m5
+    pandn           m4, m14, m0
+    psrld           m0, 12
+    paddd           m3, m5
+    pandn           m5, m14, m2
+    psrld           m2, 12
+    paddd           m4, m5                ; a
+    pandn           m5, m14, m1
+    psrld           m1, 12
+    paddd           m0, m2                ; b + (1 << 8)
+    pandn           m2, m14, m3
+    psrld           m3, 12
+    paddd           m5, m2
+    pmovzxbd        m2, [dstq+r10+0]
+    paddd           m1, m3
+    pmovzxbd        m3, [dstq+r10+8]
+    pmaddwd         m4, m2                ; a * src
+    pmaddwd         m5, m3
+    packssdw        m2, m3
+    psubd           m0, m4                ; b - a * src + (1 << 8)
+    psubd           m1, m5
+    psrad           m0, 9
+    psrad           m1, 9
+    packssdw        m0, m1
+    pmulhrsw        m0, m7
+    paddw           m0, m2
+    vextracti128   xm1, m0, 1
+    packuswb       xm0, xm1
+    pshufd         xm0, xm0, q3120
+    mova    [dstq+r10], xm0
+    add            r10, 16
+    jl .n_loop
+    mov            r10, t5
+    mov             t5, t4
+    mov             t4, r10
+    add           dstq, strideq
+    ret
+
+cglobal sgr_filter_mix_8bpc, 4, 13, 16, 400*56+8, dst, stride, left, lpf, \
+                                                  w, h, edge, params
+%define base r12-sgr_x_by_x_avx2-256*4
+    lea            r12, [sgr_x_by_x_avx2+256*4]
+    mov        paramsq, r6mp
+    mov             wd, wm
+    movifnidn       hd, hm
+    mov          edged, r7m
+    vbroadcasti128  m9, [base+sgr_shuf+0]
+    vbroadcasti128 m10, [base+sgr_shuf+8]
+    add           lpfq, wq
+    vbroadcasti128 m11, [base+sgr_shuf+2]
+    vbroadcasti128 m12, [base+sgr_shuf+6]
+    add           dstq, wq
+    vpbroadcastd   m15, [paramsq+8] ; w0 w1
+    lea             t3, [rsp+wq*4+400*24+8]
+    vpbroadcastd   m13, [paramsq+0] ; s0
+    pxor            m7, m7
+    vpbroadcastd   m14, [paramsq+4] ; s1
+    lea             t1, [rsp+wq*2+12]
+    neg             wq
+    psllw          m15, 2 ; to reuse existing pd_m4096 register for rounding
+    test         edgeb, 4 ; LR_HAVE_TOP
+    jz .no_top
+    call .h_top
+    add           lpfq, strideq
+    mov             t2, t1
+    call mangle(private_prefix %+ _sgr_filter_5x5_8bpc_avx2).top_fixup
+    add             t1, 400*12
+    call .h_top
+    lea            r10, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    add            r10, strideq
+    mov          [rsp], r10 ; below
+    call .hv0
+.main:
+    dec             hd
+    jz .height1
+    add           lpfq, strideq
+    call .hv1
+    call .prep_n
+    sub             hd, 2
+    jl .extend_bottom
+.main_loop:
+    add           lpfq, strideq
+    call .hv0
+    test            hd, hd
+    jz .odd_height
+    add           lpfq, strideq
+    call .hv1
+    call .n0
+    call .n1
+    sub             hd, 2
+    jge .main_loop
+    test         edgeb, 8 ; LR_HAVE_BOTTOM
+    jz .extend_bottom
+    mov           lpfq, [rsp]
+    call .hv0_bottom
+    add           lpfq, strideq
+    call .hv1_bottom
+.end:
+    call .n0
+    call .n1
+.end2:
+    RET
+.height1:
+    call .v1
+    call .prep_n
+    jmp .odd_height_end
+.odd_height:
+    call .v1
+    call .n0
+    call .n1
+.odd_height_end:
+    call .v0
+    call .v1
+    call .n0
+    jmp .end2
+.extend_bottom:
+    call .v0
+    call .v1
+    jmp .end
+.no_top:
+    lea            r10, [lpfq+strideq*4]
+    mov           lpfq, dstq
+    lea            r10, [r10+strideq*2]
+    mov          [rsp], r10
+    call .h
+    lea             t2, [t1+400*12]
+    lea            r10, [wq-2]
+.top_fixup_loop:
+    mova            m0, [t1+r10*2+400* 0]
+    mova            m1, [t1+r10*2+400* 2]
+    mova            m2, [t1+r10*2+400* 4]
+    paddw           m0, m0
+    mova            m3, [t1+r10*2+400* 6]
+    paddd           m1, m1
+    mova            m4, [t1+r10*2+400* 8]
+    paddd           m2, m2
+    mova            m5, [t1+r10*2+400*10]
+    mova [t2+r10*2+400* 0], m0
+    mova [t2+r10*2+400* 2], m1
+    mova [t2+r10*2+400* 4], m2
+    mova [t2+r10*2+400* 6], m3
+    mova [t2+r10*2+400* 8], m4
+    mova [t2+r10*2+400*10], m5
+    add            r10, 16
+    jl .top_fixup_loop
+    call .v0
+    jmp .main
+.h: ; horizontal boxsums
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+    vpbroadcastd   xm0, [leftq]
+    mova           xm5, [lpfq+wq]
+    palignr        xm5, xm0, 12
+    add          leftq, 4
+    jmp .h_main
+.h_extend_left:
+    mova           xm5, [lpfq+wq]
+    pshufb         xm5, [base+sgr_l_shuf]
+    jmp .h_main
+.h_top:
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .h_extend_left
+.h_loop:
+    movu           xm5, [lpfq+r10-2]
+.h_main:
+    vinserti128     m5, [lpfq+r10+6], 1
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .h_have_right
+    cmp           r10d, -18
+    jl .h_have_right
+    call mangle(private_prefix %+ _sgr_filter_5x5_8bpc_avx2).extend_right
+.h_have_right:
+    pshufb          m6, m5, m9
+    pshufb          m4, m5, m10
+    paddw           m8, m6, m4
+    shufps          m0, m6, m4, q2121
+    pmullw          m3, m0, m0
+    pshufb          m2, m5, m11
+    paddw           m0, m2
+    pshufb          m5, m12
+    paddw           m0, m5 ; sum3
+    punpcklwd       m1, m2, m5
+    pmaddwd         m1, m1
+    punpckhwd       m2, m5
+    pmaddwd         m2, m2
+    punpcklwd       m5, m6, m4
+    pmaddwd         m5, m5
+    punpckhwd       m6, m4
+    pmaddwd         m6, m6
+    punpcklwd       m4, m3, m7
+    paddd           m1, m4 ; sumsq3
+    punpckhwd       m3, m7
+    paddd           m2, m3
+    mova [t1+r10*2+400* 6], m0
+    mova [t1+r10*2+400* 8], m1
+    mova [t1+r10*2+400*10], m2
+    paddw           m8, m0 ; sum5
+    paddd           m5, m1 ; sumsq5
+    paddd           m6, m2
+    mova [t1+r10*2+400* 0], m8
+    mova [t1+r10*2+400* 2], m5
+    mova [t1+r10*2+400* 4], m6
+    add            r10, 16
+    jl .h_loop
+    ret
+ALIGN function_align
+.hv0: ; horizontal boxsums + vertical boxsum3 + ab3 (even rows)
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv0_extend_left
+    vpbroadcastd   xm0, [leftq]
+    mova           xm5, [lpfq+wq]
+    palignr        xm5, xm0, 12
+    add          leftq, 4
+    jmp .hv0_main
+.hv0_extend_left:
+    mova           xm5, [lpfq+wq]
+    pshufb         xm5, [base+sgr_l_shuf]
+    jmp .hv0_main
+.hv0_bottom:
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv0_extend_left
+.hv0_loop:
+    movu           xm5, [lpfq+r10-2]
+.hv0_main:
+    vinserti128     m5, [lpfq+r10+6], 1
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .hv0_have_right
+    cmp           r10d, -18
+    jl .hv0_have_right
+    call mangle(private_prefix %+ _sgr_filter_5x5_8bpc_avx2).extend_right
+.hv0_have_right:
+    pshufb          m6, m5, m9
+    pshufb          m4, m5, m10
+    paddw           m8, m6, m4
+    shufps          m1, m6, m4, q2121
+    pmullw          m0, m1, m1
+    pshufb          m3, m5, m11
+    paddw           m1, m3
+    pshufb          m5, m12
+    paddw           m1, m5 ; sum3
+    punpcklwd       m2, m3, m5
+    pmaddwd         m2, m2
+    punpckhwd       m3, m5
+    pmaddwd         m3, m3
+    punpcklwd       m5, m6, m4
+    pmaddwd         m5, m5
+    punpckhwd       m6, m4
+    pmaddwd         m6, m6
+    punpcklwd       m4, m0, m7
+    paddd           m2, m4 ; sumsq3
+    punpckhwd       m0, m7
+    paddd           m3, m0
+    paddw           m8, m1 ; sum5
+    paddd           m5, m2 ; sumsq5
+    paddd           m6, m3
+    mova [t3+r10*4+400*8+ 8], m8 ; we need a clean copy of the last row
+    mova [t3+r10*4+400*0+ 8], m5 ; in case height is odd
+    mova [t3+r10*4+400*0+40], m6
+    paddw           m8, [t1+r10*2+400* 0]
+    paddd           m5, [t1+r10*2+400* 2]
+    paddd           m6, [t1+r10*2+400* 4]
+    mova [t1+r10*2+400* 0], m8
+    mova [t1+r10*2+400* 2], m5
+    mova [t1+r10*2+400* 4], m6
+    paddw           m0, m1, [t1+r10*2+400* 6]
+    paddd           m4, m2, [t1+r10*2+400* 8]
+    paddd           m5, m3, [t1+r10*2+400*10]
+    mova [t1+r10*2+400* 6], m1
+    mova [t1+r10*2+400* 8], m2
+    mova [t1+r10*2+400*10], m3
+    paddw           m1, m0, [t2+r10*2+400* 6]
+    paddd           m2, m4, [t2+r10*2+400* 8]
+    paddd           m3, m5, [t2+r10*2+400*10]
+    mova [t2+r10*2+400* 6], m0
+    mova [t2+r10*2+400* 8], m4
+    mova [t2+r10*2+400*10], m5
+    punpcklwd       m0, m1, m7           ; b3
+    punpckhwd       m1, m7
+    pslld           m4, m2, 3
+    pslld           m5, m3, 3
+    paddd           m4, m2               ; a3 * 9
+    pmaddwd         m2, m0, m0           ; b3 * b
+    paddd           m5, m3
+    pmaddwd         m3, m1, m1
+    psubd           m4, m2               ; p3
+    vpbroadcastd    m2, [base+pd_0xf00801c7]
+    psubd           m5, m3
+    pmulld          m4, m14              ; p3 * s1
+    pmulld          m5, m14
+    pmaddwd         m0, m2               ; b3 * 455
+    pmaddwd         m1, m2
+    paddusw         m4, m2
+    paddusw         m5, m2
+    psrad           m3, m4, 20           ; min(z3, 255) - 256
+    vpgatherdd      m2, [r12+m3*4], m4
+    psrad           m4, m5, 20
+    vpgatherdd      m3, [r12+m4*4], m5
+    vpbroadcastd    m4, [base+pd_34816]
+    pmulld          m0, m2
+    vpbroadcastd    m5, [base+pd_m4096]
+    pmulld          m1, m3
+    paddd           m0, m4               ; x3 * b3 * 455 + (1 << 11) + (1 << 15)
+    paddd           m1, m4
+    pand            m0, m5
+    pand            m1, m5
+    por             m0, m2               ; a3 | (b3 << 12)
+    por             m1, m3
+    mova         [t3+r10*4+400*4+ 8], xm0
+    vextracti128 [t3+r10*4+400*4+40], m0, 1
+    mova         [t3+r10*4+400*4+24], xm1
+    vextracti128 [t3+r10*4+400*4+56], m1, 1
+    add            r10, 16
+    jl .hv0_loop
+    ret
+ALIGN function_align
+.hv1: ; horizontal boxsums + vertical boxsums + ab (odd rows)
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv1_extend_left
+    vpbroadcastd   xm0, [leftq]
+    mova           xm5, [lpfq+wq]
+    palignr        xm5, xm0, 12
+    add          leftq, 4
+    jmp .hv1_main
+.hv1_extend_left:
+    mova           xm5, [lpfq+wq]
+    pshufb         xm5, [base+sgr_l_shuf]
+    jmp .hv1_main
+.hv1_bottom:
+    lea            r10, [wq-2]
+    test         edgeb, 1 ; LR_HAVE_LEFT
+    jz .hv1_extend_left
+.hv1_loop:
+    movu           xm5, [lpfq+r10-2]
+.hv1_main:
+    vinserti128     m5, [lpfq+r10+6], 1
+    test         edgeb, 2 ; LR_HAVE_RIGHT
+    jnz .hv1_have_right
+    cmp           r10d, -18
+    jl .hv1_have_right
+    call mangle(private_prefix %+ _sgr_filter_5x5_8bpc_avx2).extend_right
+.hv1_have_right:
+    pshufb          m6, m5, m9
+    pshufb          m3, m5, m10
+    paddw           m8, m6, m3
+    shufps          m2, m6, m3, q2121
+    pmullw          m1, m2, m2
+    pshufb          m0, m5, m11
+    paddw           m2, m0
+    pshufb          m5, m12
+    paddw           m2, m5 ; sum3
+    punpcklwd       m4, m5, m0
+    pmaddwd         m4, m4
+    punpckhwd       m5, m0
+    pmaddwd         m5, m5
+    punpcklwd       m0, m6, m3
+    pmaddwd         m0, m0
+    punpckhwd       m6, m3
+    pmaddwd         m6, m6
+    punpcklwd       m3, m1, m7
+    paddd           m4, m3 ; sumsq3
+    punpckhwd       m1, m7
+    paddd           m5, m1
+    paddw           m1, m2, [t2+r10*2+400* 6]
+    mova [t2+r10*2+400* 6], m2
+    paddw           m8, m2 ; sum5
+    paddd           m2, m4, [t2+r10*2+400* 8]
+    paddd           m3, m5, [t2+r10*2+400*10]
+    mova [t2+r10*2+400* 8], m4
+    mova [t2+r10*2+400*10], m5
+    paddd           m4, m0 ; sumsq5
+    paddd           m5, m6
+    punpcklwd       m0, m1, m7           ; b3
+    punpckhwd       m1, m7
+    pslld           m6, m2, 3
+    pslld           m7, m3, 3
+    paddd           m6, m2               ; a3 * 9
+    pmaddwd         m2, m0, m0           ; b3 * b3
+    paddd           m7, m3
+    pmaddwd         m3, m1, m1
+    psubd           m6, m2               ; p3
+    vpbroadcastd    m2, [base+pd_0xf00801c7]
+    psubd           m7, m3
+    pmulld          m6, m14              ; p3 * s1
+    pmulld          m7, m14
+    pmaddwd         m0, m2               ; b3 * 455
+    pmaddwd         m1, m2
+    paddusw         m6, m2
+    paddusw         m7, m2
+    psrad           m3, m6, 20           ; min(z3, 255) - 256
+    vpgatherdd      m2, [r12+m3*4], m6
+    psrad           m6, m7, 20
+    vpgatherdd      m3, [r12+m6*4], m7
+    vpbroadcastd    m6, [base+pd_34816]  ; x3
+    pmulld          m0, m2
+    vpbroadcastd    m7, [base+pd_m4096]
+    pmulld          m1, m3
+    paddd           m0, m6               ; x3 * b3 * 455 + (1 << 11) + (1 << 15)
+    paddd           m1, m6
+    pand            m0, m7
+    pand            m7, m1
+    por             m0, m2               ; a3 | (b3 << 12)
+    por             m7, m3
+    paddw           m1, m8, [t2+r10*2+400*0]
+    paddd           m2, m4, [t2+r10*2+400*2]
+    paddd           m3, m5, [t2+r10*2+400*4]
+    paddw           m1, [t1+r10*2+400*0]
+    paddd           m2, [t1+r10*2+400*2]
+    paddd           m3, [t1+r10*2+400*4]
+    mova [t2+r10*2+400*0], m8
+    mova [t2+r10*2+400*2], m4
+    mova [t2+r10*2+400*4], m5
+    mova         [t3+r10*4+400*8+ 8], xm0
+    vextracti128 [t3+r10*4+400*8+40], m0, 1
+    mova         [t3+r10*4+400*8+24], xm7
+    vextracti128 [t3+r10*4+400*8+56], m7, 1
+    vpbroadcastd    m4, [base+pd_25]
+    pxor            m7, m7
+    punpcklwd       m0, m1, m7           ; b5
+    punpckhwd       m1, m7
+    pmulld          m2, m4               ; a5 * 25
+    pmulld          m3, m4
+    pmaddwd         m4, m0, m0           ; b5 * b5
+    pmaddwd         m5, m1, m1
+    psubd           m2, m4               ; p5
+    vpbroadcastd    m4, [base+pd_0xf00800a4]
+    psubd           m3, m5
+    pmulld          m2, m13              ; p5 * s0
+    pmulld          m3, m13
+    pmaddwd         m0, m4               ; b5 * 164
+    pmaddwd         m1, m4
+    paddusw         m2, m4
+    paddusw         m3, m4
+    psrad           m5, m2, 20           ; min(z5, 255) - 256
+    vpgatherdd      m4, [r12+m5*4], m2   ; x5
+    psrad           m2, m3, 20
+    vpgatherdd      m5, [r12+m2*4], m3
+    pmulld          m0, m4
+    pmulld          m1, m5
+    paddd           m0, m6               ; x5 * b5 * 164 + (1 << 11) + (1 << 15)
+    paddd           m1, m6
+    vpbroadcastd    m6, [base+pd_m4096]
+    pand            m0, m6
+    pand            m1, m6
+    por             m0, m4               ; a5 | (b5 << 12)
+    por             m1, m5
+    mova         [t3+r10*4+400*0+ 8], xm0
+    vextracti128 [t3+r10*4+400*0+40], m0, 1
+    mova         [t3+r10*4+400*0+24], xm1
+    vextracti128 [t3+r10*4+400*0+56], m1, 1
+    add            r10, 16
+    jl .hv1_loop
+    mov            r10, t2
+    mov             t2, t1
+    mov             t1, r10
+    ret
+.v0: ; vertical boxsums + ab3 (even rows)
+    lea            r10, [wq-2]
+    vpbroadcastd    m6, [base+pd_34816]
+    vpbroadcastd    m8, [base+pd_m4096]
+.v0_loop:
+    mova            m0, [t1+r10*2+400* 6]
+    mova            m4, [t1+r10*2+400* 8]
+    mova            m5, [t1+r10*2+400*10]
+    paddw           m0, m0
+    paddd           m4, m4
+    paddd           m5, m5
+    paddw           m1, m0, [t2+r10*2+400* 6]
+    paddd           m2, m4, [t2+r10*2+400* 8]
+    paddd           m3, m5, [t2+r10*2+400*10]
+    mova [t2+r10*2+400* 6], m0
+    mova [t2+r10*2+400* 8], m4
+    mova [t2+r10*2+400*10], m5
+    punpcklwd       m0, m1, m7           ; b3
+    punpckhwd       m1, m7
+    pslld           m4, m2, 3
+    pslld           m5, m3, 3
+    paddd           m4, m2               ; a3 * 9
+    pmaddwd         m2, m0, m0           ; b3 * b3
+    paddd           m5, m3
+    pmaddwd         m3, m1, m1
+    psubd           m4, m2               ; p3
+    vpbroadcastd    m2, [base+pd_0xf00801c7]
+    psubd           m5, m3
+    pmulld          m4, m14              ; p3 * s1
+    pmulld          m5, m14
+    pmaddwd         m0, m2               ; b3 * 455
+    pmaddwd         m1, m2
+    paddusw         m4, m2
+    paddusw         m5, m2
+    psrad           m3, m4, 20           ; min(z3, 255) - 256
+    vpgatherdd      m2, [r12+m3*4], m4   ; x3
+    psrad           m4, m5, 20
+    vpgatherdd      m3, [r12+m4*4], m5
+    pmulld          m0, m2
+    pmulld          m1, m3
+    paddd           m0, m6               ; x3 * b3 * 455 + (1 << 11) + (1 << 15)
+    paddd           m1, m6
+    pand            m0, m8
+    pand            m1, m8
+    por             m0, m2               ; a3 | (b3 << 12)
+    por             m1, m3
+    mova            m2, [t1+r10*2+400*0]
+    mova            m3, [t1+r10*2+400*2]
+    mova            m4, [t1+r10*2+400*4]
+    mova [t3+r10*4+400*8+ 8], m2
+    mova [t3+r10*4+400*0+ 8], m3
+    mova [t3+r10*4+400*0+40], m4
+    paddw           m2, m2               ; cc5
+    paddd           m3, m3
+    paddd           m4, m4
+    mova [t1+r10*2+400*0], m2
+    mova [t1+r10*2+400*2], m3
+    mova [t1+r10*2+400*4], m4
+    mova         [t3+r10*4+400*4+ 8], xm0
+    vextracti128 [t3+r10*4+400*4+40], m0, 1
+    mova         [t3+r10*4+400*4+24], xm1
+    vextracti128 [t3+r10*4+400*4+56], m1, 1
+    add            r10, 16
+    jl .v0_loop
+    ret
+.v1: ; vertical boxsums + ab (odd rows)
+    lea            r10, [wq-2]
+.v1_loop:
+    mova            m4, [t1+r10*2+400* 6]
+    mova            m5, [t1+r10*2+400* 8]
+    mova            m6, [t1+r10*2+400*10]
+    paddw           m1, m4, [t2+r10*2+400* 6]
+    paddd           m2, m5, [t2+r10*2+400* 8]
+    paddd           m3, m6, [t2+r10*2+400*10]
+    mova [t2+r10*2+400* 6], m4
+    mova [t2+r10*2+400* 8], m5
+    mova [t2+r10*2+400*10], m6
+    punpcklwd       m0, m1, m7           ; b3
+    punpckhwd       m1, m7
+    pslld           m4, m2, 3
+    pslld           m5, m3, 3
+    paddd           m4, m2               ; a3 * 9
+    pmaddwd         m2, m0, m0           ; b3 * b3
+    paddd           m5, m3
+    pmaddwd         m3, m1, m1
+    psubd           m4, m2               ; p3
+    vpbroadcastd    m2, [base+pd_0xf00801c7]
+    psubd           m5, m3
+    pmulld          m4, m14              ; p3 * s1
+    pmulld          m5, m14
+    pmaddwd         m0, m2               ; b3 * 455
+    pmaddwd         m1, m2
+    paddusw         m4, m2
+    paddusw         m5, m2
+    psrad           m3, m4, 20           ; min(z3, 255) - 256
+    vpgatherdd      m2, [r12+m3*4], m4   ; x3
+    psrad           m4, m5, 20
+    vpgatherdd      m3, [r12+m4*4], m5
+    vpbroadcastd    m4, [base+pd_34816]
+    pmulld          m0, m2
+    vpbroadcastd    m8, [base+pd_m4096]
+    pmulld          m1, m3
+    paddd           m0, m4               ; x3 * b3 * 455 + (1 << 11) + (1 << 15)
+    paddd           m1, m4
+    pand            m0, m8
+    pand            m8, m1
+    por             m0, m2               ; a3 | (b3 << 12)
+    por             m8, m3
+    mova            m4, [t3+r10*4+400*8+ 8]
+    mova            m5, [t3+r10*4+400*0+ 8]
+    mova            m6, [t3+r10*4+400*0+40]
+    paddw           m1, m4, [t2+r10*2+400*0]
+    paddd           m2, m5, [t2+r10*2+400*2]
+    paddd           m3, m6, [t2+r10*2+400*4]
+    paddw           m1, [t1+r10*2+400*0]
+    paddd           m2, [t1+r10*2+400*2]
+    paddd           m3, [t1+r10*2+400*4]
+    mova [t2+r10*2+400*0], m4
+    mova [t2+r10*2+400*2], m5
+    mova [t2+r10*2+400*4], m6
+    vpbroadcastd    m4, [base+pd_25]
+    mova         [t3+r10*4+400*8+ 8], xm0
+    vextracti128 [t3+r10*4+400*8+40], m0, 1
+    mova         [t3+r10*4+400*8+24], xm8
+    vextracti128 [t3+r10*4+400*8+56], m8, 1
+    punpcklwd       m0, m1, m7           ; b5
+    punpckhwd       m1, m7
+    pmulld          m2, m4               ; a5 * 25
+    pmulld          m3, m4
+    pmaddwd         m4, m0, m0           ; b5 * b5
+    pmaddwd         m5, m1, m1
+    psubd           m2, m4               ; p5
+    vpbroadcastd    m4, [base+pd_0xf00800a4]
+    psubd           m3, m5
+    pmulld          m2, m13              ; p5 * s0
+    pmulld          m3, m13
+    pmaddwd         m0, m4               ; b5 * 164
+    pmaddwd         m1, m4
+    paddusw         m2, m4
+    paddusw         m3, m4
+    psrad           m5, m2, 20           ; min(z5, 255) - 256
+    vpgatherdd      m4, [r12+m5*4], m2   ; x5
+    psrad           m2, m3, 20
+    vpgatherdd      m5, [r12+m2*4], m3
+    pmulld          m0, m4
+    vpbroadcastd    m6, [base+pd_34816]
+    pmulld          m1, m5
+    paddd           m0, m6               ; x5 * b5 * 164 + (1 << 11) + (1 << 15)
+    paddd           m1, m6
+    vpbroadcastd    m6, [base+pd_m4096]
+    pand            m0, m6
+    pand            m1, m6
+    por             m0, m4               ; a5 | (b5 << 12)
+    por             m1, m5
+    mova         [t3+r10*4+400*0+ 8], xm0
+    vextracti128 [t3+r10*4+400*0+40], m0, 1
+    mova         [t3+r10*4+400*0+24], xm1
+    vextracti128 [t3+r10*4+400*0+56], m1, 1
+    add            r10, 16
+    jl .v1_loop
+    mov            r10, t2
+    mov             t2, t1
+    mov             t1, r10
+    ret
+.prep_n: ; initial neighbor setup
+    mov            r10, wq
+.prep_n_loop:
+    movu            m0, [t3+r10*4+400*0+4]
+    paddd           m1, m0, [t3+r10*4+400*0+0]
+    mova            m4, [t3+r10*4+400*4+0]
+    paddd           m1, [t3+r10*4+400*0+8]
+    mova            m5, [t3+r10*4+400*8+0]
+    paddd           m4, [t3+r10*4+400*4+8]
+    paddd           m5, [t3+r10*4+400*8+8]
+    paddd           m2, m4, [t3+r10*4+400*4+4]
+    paddd           m3, m5, [t3+r10*4+400*8+4]
+    paddd           m0, m1
+    pslld           m1, 2
+    pslld           m2, 2
+    paddd           m1, m0                ; ab5 565
+    paddd           m3, m3                ; ab3[ 0] 222
+    psubd           m2, m4                ; ab3[-1] 343
+    mova [t3+r10*4+400*20], m3
+    pandn           m0, m6, m1            ; a5 565
+    mova [t3+r10*4+400*24], m2
+    psrld           m1, 12                ; b5 565
+    mova [t3+r10*4+400*12], m0
+    paddd           m3, m3
+    mova [t3+r10*4+400*16], m1
+    psubd           m3, m5                ; ab3[ 0] 343
+    mova [t3+r10*4+400*28], m3
+    add            r10, 8
+    jl .prep_n_loop
+    ret
+ALIGN function_align
+.n0: ; neighbor + output (even rows)
+    mov            r10, wq
+.n0_loop:
+    movu            m0, [t3+r10*4+4]
+    paddd           m4, m0, [t3+r10*4+0]
+    paddd           m4, [t3+r10*4+8]
+    paddd           m0, m4
+    pslld           m4, 2
+    paddd           m4, m0
+    pandn           m0, m6, m4
+    psrld           m4, 12
+    paddd           m2, m0, [t3+r10*4+400*12] ; a5
+    mova [t3+r10*4+400*12], m0
+    paddd           m0, m4, [t3+r10*4+400*16] ; b5 + (1 << 8)
+    mova [t3+r10*4+400*16], m4
+    mova            m3, [t3+r10*4+400*4+0]
+    paddd           m3, [t3+r10*4+400*4+8]
+    paddd           m5, m3, [t3+r10*4+400*4+4]
+    paddd           m5, m5                    ; ab3[ 1] 222
+    mova            m4, [t3+r10*4+400*20]
+    paddd           m1, m4, [t3+r10*4+400*24] ; ab3[ 0] 222 + ab3[-1] 343
+    mova [t3+r10*4+400*20], m5
+    paddd           m5, m5
+    psubd           m5, m3                    ; ab3[ 1] 343
+    mova [t3+r10*4+400*24], m5
+    paddd           m4, m5                    ; ab3[ 0] 222 + ab3[ 1] 343
+    pandn           m3, m6, m1
+    psrld           m1, 12
+    pandn           m5, m6, m4
+    psrld           m4, 12
+    paddd           m3, m5                    ; a3
+    paddd           m1, m4                    ; b3 + (1 << 8)
+    pmovzxbd        m4, [dstq+r10]
+    pmaddwd         m2, m4                    ; a5 * src
+    pmaddwd         m3, m4                    ; a3 * src
+    psubd           m0, m2                    ; b5 - a5 * src + (1 << 8)
+    psubd           m1, m3                    ; b3 - a3 * src + (1 << 8)
+    psrld           m0, 9
+    pslld           m1, 7
+    pblendw         m0, m1, 0xaa
+    pmaddwd         m0, m15
+    psubd           m0, m6
+    psrad           m0, 13
+    paddd           m0, m4
+    vextracti128   xm1, m0, 1
+    packssdw       xm0, xm1
+    packuswb       xm0, xm0
+    movq    [dstq+r10], xm0
+    add            r10, 8
+    jl .n0_loop
+    add           dstq, strideq
+    ret
+ALIGN function_align
+.n1: ; neighbor + output (odd rows)
+    mov            r10, wq
+.n1_loop:
+    mova            m3, [t3+r10*4+400*8+0]
+    paddd           m3, [t3+r10*4+400*8+8]
+    paddd           m5, m3, [t3+r10*4+400*8+4]
+    paddd           m5, m5                    ; ab3[ 1] 222
+    mova            m4, [t3+r10*4+400*20]
+    paddd           m1, m4, [t3+r10*4+400*28] ; ab3[ 0] 222 + ab3[-1] 343
+    mova [t3+r10*4+400*20], m5
+    paddd           m5, m5
+    psubd           m5, m3                    ; ab3[ 1] 343
+    mova [t3+r10*4+400*28], m5
+    paddd           m4, m5                    ; ab3[ 0] 222 + ab3[ 1] 343
+    pandn           m3, m6, m1
+    psrld           m1, 12
+    pandn           m5, m6, m4
+    psrld           m4, 12
+    paddd           m3, m5                    ; -a3
+    paddd           m1, m4                    ;  b3 + (1 << 8)
+    pmovzxbd        m4, [dstq+r10]
+    pmaddwd         m2, m4, [t3+r10*4+400*12] ; -a5 * src
+    mova            m0, [t3+r10*4+400*16]     ;  b5 + (1 << 7)
+    pmaddwd         m3, m4                    ; -a3 * src
+    psubd           m0, m2                    ; a5 * src + b5 + (1 << 7)
+    psubd           m1, m3                    ; a3 * src + b3 + (1 << 8)
+    psrld           m0, 8
+    pslld           m1, 7
+    pblendw         m0, m1, 0xaa
+    pmaddwd         m0, m15
+    psubd           m0, m6
+    psrad           m0, 13
+    paddd           m0, m4
+    vextracti128   xm1, m0, 1
+    packssdw       xm0, xm1
+    packuswb       xm0, xm0
+    movq    [dstq+r10], xm0
+    add            r10, 8
+    jl .n1_loop
+    add           dstq, strideq
+    ret
+
+%endif ; ARCH_X86_64