x86: vp8dsp: Split loopfilter code into a separate file

libavcodec/x86/Makefile

@@ -88,4 +88,5 @@ YASM-OBJS-$(CONFIG_VIDEODSP)           += x86/videodsp.o
 YASM-OBJS-$(CONFIG_VORBIS_DECODER)     += x86/vorbisdsp.o
 YASM-OBJS-$(CONFIG_VP3DSP)             += x86/vp3dsp.o
 YASM-OBJS-$(CONFIG_VP6_DECODER)        += x86/vp6dsp.o
-YASM-OBJS-$(CONFIG_VP8_DECODER)        += x86/vp8dsp.o
+YASM-OBJS-$(CONFIG_VP8_DECODER)        += x86/vp8dsp.o                  \
+                                          x86/vp8dsp_loopfilter.o

libavcodec/x86/vp8dsp.asm

@@ -143,27 +143,13 @@ filter_h6_shuf1: db 0, 5, 1, 6, 2, 7, 3, 8, 4, 9, 5, 10, 6, 11,  7, 12
 filter_h6_shuf2: db 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,  7, 7,  8,  8,  9
 filter_h6_shuf3: db 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8,  9, 9, 10, 10, 11
 
-pw_27:    times 8 dw 27
-pw_63:    times 8 dw 63
 pw_256:   times 8 dw 256
 pw_20091: times 4 dw 20091
 pw_17734: times 4 dw 17734
 
-pb_4:     times 16 db 4
-pb_F8:    times 16 db 0xF8
-pb_FE:    times 16 db 0xFE
-pb_27_63: times 8 db 27, 63
-pb_18_63: times 8 db 18, 63
-pb_9_63:  times 8 db  9, 63
-
-cextern pb_1
 cextern pw_3
-cextern pb_3
 cextern pw_4
-cextern pw_9
-cextern pw_18
 cextern pw_64
-cextern pb_80
 
 SECTION .text
 
@@ -1237,1544 +1223,3 @@ VP8_DC_WHT
 %endif
 INIT_MMX sse
 VP8_DC_WHT
-
-;-----------------------------------------------------------------------------
-; void vp8_h/v_loop_filter_simple_<opt>(uint8_t *dst, int stride, int flim);
-;-----------------------------------------------------------------------------
-
-; macro called with 7 mm register indexes as argument, and 4 regular registers
-;
-; first 4 mm registers will carry the transposed pixel data
-; the other three are scratchspace (one would be sufficient, but this allows
-; for more spreading/pipelining and thus faster execution on OOE CPUs)
-;
-; first two regular registers are buf+4*stride and buf+5*stride
-; third is -stride, fourth is +stride
-%macro READ_8x4_INTERLEAVED 11
-    ; interleave 8 (A-H) rows of 4 pixels each
-    movd          m%1, [%8+%10*4]   ; A0-3
-    movd          m%5, [%9+%10*4]   ; B0-3
-    movd          m%2, [%8+%10*2]   ; C0-3
-    movd          m%6, [%8+%10]     ; D0-3
-    movd          m%3, [%8]         ; E0-3
-    movd          m%7, [%9]         ; F0-3
-    movd          m%4, [%9+%11]     ; G0-3
-    punpcklbw     m%1, m%5          ; A/B interleaved
-    movd          m%5, [%9+%11*2]   ; H0-3
-    punpcklbw     m%2, m%6          ; C/D interleaved
-    punpcklbw     m%3, m%7          ; E/F interleaved
-    punpcklbw     m%4, m%5          ; G/H interleaved
-%endmacro
-
-; macro called with 7 mm register indexes as argument, and 5 regular registers
-; first 11 mean the same as READ_8x4_TRANSPOSED above
-; fifth regular register is scratchspace to reach the bottom 8 rows, it
-; will be set to second regular register + 8*stride at the end
-%macro READ_16x4_INTERLEAVED 12
-    ; transpose 16 (A-P) rows of 4 pixels each
-    lea           %12, [r0+8*r2]
-
-    ; read (and interleave) those addressable by %8 (=r0), A/C/D/E/I/K/L/M
-    movd          m%1, [%8+%10*4]   ; A0-3
-    movd          m%3, [%12+%10*4]  ; I0-3
-    movd          m%2, [%8+%10*2]   ; C0-3
-    movd          m%4, [%12+%10*2]  ; K0-3
-    movd          m%6, [%8+%10]     ; D0-3
-    movd          m%5, [%12+%10]    ; L0-3
-    movd          m%7, [%12]        ; M0-3
-    add           %12, %11
-    punpcklbw     m%1, m%3          ; A/I
-    movd          m%3, [%8]         ; E0-3
-    punpcklbw     m%2, m%4          ; C/K
-    punpcklbw     m%6, m%5          ; D/L
-    punpcklbw     m%3, m%7          ; E/M
-    punpcklbw     m%2, m%6          ; C/D/K/L interleaved
-
-    ; read (and interleave) those addressable by %9 (=r4), B/F/G/H/J/N/O/P
-    movd         m%5, [%9+%10*4]   ; B0-3
-    movd         m%4, [%12+%10*4]  ; J0-3
-    movd         m%7, [%9]         ; F0-3
-    movd         m%6, [%12]        ; N0-3
-    punpcklbw    m%5, m%4          ; B/J
-    punpcklbw    m%7, m%6          ; F/N
-    punpcklbw    m%1, m%5          ; A/B/I/J interleaved
-    punpcklbw    m%3, m%7          ; E/F/M/N interleaved
-    movd         m%4, [%9+%11]     ; G0-3
-    movd         m%6, [%12+%11]    ; O0-3
-    movd         m%5, [%9+%11*2]   ; H0-3
-    movd         m%7, [%12+%11*2]  ; P0-3
-    punpcklbw    m%4, m%6          ; G/O
-    punpcklbw    m%5, m%7          ; H/P
-    punpcklbw    m%4, m%5          ; G/H/O/P interleaved
-%endmacro
-
-; write 4 mm registers of 2 dwords each
-; first four arguments are mm register indexes containing source data
-; last four are registers containing buf+4*stride, buf+5*stride,
-; -stride and +stride
-%macro WRITE_4x2D 8
-    ; write out (2 dwords per register)
-    movd    [%5+%7*4], m%1
-    movd    [%5+%7*2], m%2
-    movd         [%5], m%3
-    movd      [%6+%8], m%4
-    punpckhdq     m%1, m%1
-    punpckhdq     m%2, m%2
-    punpckhdq     m%3, m%3
-    punpckhdq     m%4, m%4
-    movd    [%6+%7*4], m%1
-    movd      [%5+%7], m%2
-    movd         [%6], m%3
-    movd    [%6+%8*2], m%4
-%endmacro
-
-; write 4 xmm registers of 4 dwords each
-; arguments same as WRITE_2x4D, but with an extra register, so that the 5 regular
-; registers contain buf+4*stride, buf+5*stride, buf+12*stride, -stride and +stride
-; we add 1*stride to the third regular registry in the process
-; the 10th argument is 16 if it's a Y filter (i.e. all regular registers cover the
-; same memory region), or 8 if they cover two separate buffers (third one points to
-; a different memory region than the first two), allowing for more optimal code for
-; the 16-width case
-%macro WRITE_4x4D 10
-    ; write out (4 dwords per register), start with dwords zero
-    movd    [%5+%8*4], m%1
-    movd         [%5], m%2
-    movd    [%7+%8*4], m%3
-    movd         [%7], m%4
-
-    ; store dwords 1
-    psrldq        m%1, 4
-    psrldq        m%2, 4
-    psrldq        m%3, 4
-    psrldq        m%4, 4
-    movd    [%6+%8*4], m%1
-    movd         [%6], m%2
-%if %10 == 16
-    movd    [%6+%9*4], m%3
-%endif
-    movd      [%7+%9], m%4
-
-    ; write dwords 2
-    psrldq        m%1, 4
-    psrldq        m%2, 4
-%if %10 == 8
-    movd    [%5+%8*2], m%1
-    movd          %5d, m%3
-%endif
-    psrldq        m%3, 4
-    psrldq        m%4, 4
-%if %10 == 16
-    movd    [%5+%8*2], m%1
-%endif
-    movd      [%6+%9], m%2
-    movd    [%7+%8*2], m%3
-    movd    [%7+%9*2], m%4
-    add            %7, %9
-
-    ; store dwords 3
-    psrldq        m%1, 4
-    psrldq        m%2, 4
-    psrldq        m%3, 4
-    psrldq        m%4, 4
-%if %10 == 8
-    mov     [%7+%8*4], %5d
-    movd    [%6+%8*2], m%1
-%else
-    movd      [%5+%8], m%1
-%endif
-    movd    [%6+%9*2], m%2
-    movd    [%7+%8*2], m%3
-    movd    [%7+%9*2], m%4
-%endmacro
-
-; write 4 or 8 words in the mmx/xmm registers as 8 lines
-; 1 and 2 are the registers to write, this can be the same (for SSE2)
-; for pre-SSE4:
-; 3 is a general-purpose register that we will clobber
-; for SSE4:
-; 3 is a pointer to the destination's 5th line
-; 4 is a pointer to the destination's 4th line
-; 5/6 is -stride and +stride
-%macro WRITE_2x4W 6
-    movd            %3d, %1
-    punpckhdq        %1, %1
-    mov       [%4+%5*4], %3w
-    shr              %3, 16
-    add              %4, %6
-    mov       [%4+%5*4], %3w
-
-    movd            %3d, %1
-    add              %4, %5
-    mov       [%4+%5*2], %3w
-    shr              %3, 16
-    mov       [%4+%5  ], %3w
-
-    movd            %3d, %2
-    punpckhdq        %2, %2
-    mov       [%4     ], %3w
-    shr              %3, 16
-    mov       [%4+%6  ], %3w
-
-    movd            %3d, %2
-    add              %4, %6
-    mov       [%4+%6  ], %3w
-    shr              %3, 16
-    mov       [%4+%6*2], %3w
-    add              %4, %5
-%endmacro
-
-%macro WRITE_8W 5
-%if cpuflag(sse4)
-    pextrw    [%3+%4*4], %1, 0
-    pextrw    [%2+%4*4], %1, 1
-    pextrw    [%3+%4*2], %1, 2
-    pextrw    [%3+%4  ], %1, 3
-    pextrw    [%3     ], %1, 4
-    pextrw    [%2     ], %1, 5
-    pextrw    [%2+%5  ], %1, 6
-    pextrw    [%2+%5*2], %1, 7
-%else
-    movd            %2d, %1
-    psrldq           %1, 4
-    mov       [%3+%4*4], %2w
-    shr              %2, 16
-    add              %3, %5
-    mov       [%3+%4*4], %2w
-
-    movd            %2d, %1
-    psrldq           %1, 4
-    add              %3, %4
-    mov       [%3+%4*2], %2w
-    shr              %2, 16
-    mov       [%3+%4  ], %2w
-
-    movd            %2d, %1
-    psrldq           %1, 4
-    mov       [%3     ], %2w
-    shr              %2, 16
-    mov       [%3+%5  ], %2w
-
-    movd            %2d, %1
-    add              %3, %5
-    mov       [%3+%5  ], %2w
-    shr              %2, 16
-    mov       [%3+%5*2], %2w
-%endif
-%endmacro
-
-%macro SIMPLE_LOOPFILTER 2
-cglobal vp8_%1_loop_filter_simple, 3, %2, 8, dst, stride, flim, cntr
-%if mmsize == 8 ; mmx/mmxext
-    mov         cntrq, 2
-%endif
-%if cpuflag(ssse3)
-    pxor           m0, m0
-%endif
-    SPLATB_REG     m7, flim, m0     ; splat "flim" into register
-
-    ; set up indexes to address 4 rows
-%if mmsize == 8
-    DEFINE_ARGS dst1, mstride, stride, cntr, dst2
-%else
-    DEFINE_ARGS dst1, mstride, stride, dst3, dst2
-%endif
-    mov       strideq, mstrideq
-    neg      mstrideq
-%ifidn %1, h
-    lea         dst1q, [dst1q+4*strideq-2]
-%endif
-
-%if mmsize == 8 ; mmx / mmxext
-.next8px:
-%endif
-%ifidn %1, v
-    ; read 4 half/full rows of pixels
-    mova           m0, [dst1q+mstrideq*2]    ; p1
-    mova           m1, [dst1q+mstrideq]      ; p0
-    mova           m2, [dst1q]               ; q0
-    mova           m3, [dst1q+ strideq]      ; q1
-%else ; h
-    lea         dst2q, [dst1q+ strideq]
-
-%if mmsize == 8 ; mmx/mmxext
-    READ_8x4_INTERLEAVED  0, 1, 2, 3, 4, 5, 6, dst1q, dst2q, mstrideq, strideq
-%else ; sse2
-    READ_16x4_INTERLEAVED 0, 1, 2, 3, 4, 5, 6, dst1q, dst2q, mstrideq, strideq, dst3q
-%endif
-    TRANSPOSE4x4W         0, 1, 2, 3, 4
-%endif
-
-    ; simple_limit
-    mova           m5, m2           ; m5=backup of q0
-    mova           m6, m1           ; m6=backup of p0
-    psubusb        m1, m2           ; p0-q0
-    psubusb        m2, m6           ; q0-p0
-    por            m1, m2           ; FFABS(p0-q0)
-    paddusb        m1, m1           ; m1=FFABS(p0-q0)*2
-
-    mova           m4, m3
-    mova           m2, m0
-    psubusb        m3, m0           ; q1-p1
-    psubusb        m0, m4           ; p1-q1
-    por            m3, m0           ; FFABS(p1-q1)
-    mova           m0, [pb_80]
-    pxor           m2, m0
-    pxor           m4, m0
-    psubsb         m2, m4           ; m2=p1-q1 (signed) backup for below
-    pand           m3, [pb_FE]
-    psrlq          m3, 1            ; m3=FFABS(p1-q1)/2, this can be used signed
-    paddusb        m3, m1
-    psubusb        m3, m7
-    pxor           m1, m1
-    pcmpeqb        m3, m1           ; abs(p0-q0)*2+abs(p1-q1)/2<=flim mask(0xff/0x0)
-
-    ; filter_common (use m2/p1-q1, m4=q0, m6=p0, m5/q0-p0 and m3/mask)
-    mova           m4, m5
-    pxor           m5, m0
-    pxor           m0, m6
-    psubsb         m5, m0           ; q0-p0 (signed)
-    paddsb         m2, m5
-    paddsb         m2, m5
-    paddsb         m2, m5           ; a=(p1-q1) + 3*(q0-p0)
-    pand           m2, m3           ; apply filter mask (m3)
-
-    mova           m3, [pb_F8]
-    mova           m1, m2
-    paddsb         m2, [pb_4]       ; f1<<3=a+4
-    paddsb         m1, [pb_3]       ; f2<<3=a+3
-    pand           m2, m3
-    pand           m1, m3           ; cache f2<<3
-
-    pxor           m0, m0
-    pxor           m3, m3
-    pcmpgtb        m0, m2           ; which values are <0?
-    psubb          m3, m2           ; -f1<<3
-    psrlq          m2, 3            ; +f1
-    psrlq          m3, 3            ; -f1
-    pand           m3, m0
-    pandn          m0, m2
-    psubusb        m4, m0
-    paddusb        m4, m3           ; q0-f1
-
-    pxor           m0, m0
-    pxor           m3, m3
-    pcmpgtb        m0, m1           ; which values are <0?
-    psubb          m3, m1           ; -f2<<3
-    psrlq          m1, 3            ; +f2
-    psrlq          m3, 3            ; -f2
-    pand           m3, m0
-    pandn          m0, m1
-    paddusb        m6, m0
-    psubusb        m6, m3           ; p0+f2
-
-    ; store
-%ifidn %1, v
-    mova      [dst1q], m4
-    mova [dst1q+mstrideq], m6
-%else ; h
-    inc        dst1q
-    SBUTTERFLY    bw, 6, 4, 0
-
-%if mmsize == 16 ; sse2
-%if cpuflag(sse4)
-    inc         dst2q
-%endif
-    WRITE_8W       m6, dst2q, dst1q, mstrideq, strideq
-    lea         dst2q, [dst3q+mstrideq+1]
-%if cpuflag(sse4)
-    inc         dst3q
-%endif
-    WRITE_8W       m4, dst3q, dst2q, mstrideq, strideq
-%else ; mmx/mmxext
-    WRITE_2x4W     m6, m4, dst2q, dst1q, mstrideq, strideq
-%endif
-%endif
-
-%if mmsize == 8 ; mmx/mmxext
-    ; next 8 pixels
-%ifidn %1, v
-    add         dst1q, 8            ; advance 8 cols = pixels
-%else ; h
-    lea         dst1q, [dst1q+strideq*8-1]  ; advance 8 rows = lines
-%endif
-    dec         cntrq
-    jg .next8px
-    REP_RET
-%else ; sse2
-    RET
-%endif
-%endmacro
-
-%if ARCH_X86_32
-INIT_MMX mmx
-SIMPLE_LOOPFILTER v, 4
-SIMPLE_LOOPFILTER h, 5
-INIT_MMX mmxext
-SIMPLE_LOOPFILTER v, 4
-SIMPLE_LOOPFILTER h, 5
-%endif
-
-INIT_XMM sse2
-SIMPLE_LOOPFILTER v, 3
-SIMPLE_LOOPFILTER h, 5
-INIT_XMM ssse3
-SIMPLE_LOOPFILTER v, 3
-SIMPLE_LOOPFILTER h, 5
-INIT_XMM sse4
-SIMPLE_LOOPFILTER h, 5
-
-;-----------------------------------------------------------------------------
-; void vp8_h/v_loop_filter<size>_inner_<opt>(uint8_t *dst, [uint8_t *v,] int stride,
-;                                            int flimE, int flimI, int hev_thr);
-;-----------------------------------------------------------------------------
-
-%macro INNER_LOOPFILTER 2
-%define stack_size 0
-%ifndef m8   ; stack layout: [0]=E, [1]=I, [2]=hev_thr
-%ifidn %1, v ;               [3]=hev() result
-%define stack_size mmsize * -4
-%else ; h    ; extra storage space for transposes
-%define stack_size mmsize * -5
-%endif
-%endif
-
-%if %2 == 8 ; chroma
-cglobal vp8_%1_loop_filter8uv_inner, 6, 6, 13, stack_size, dst, dst8, stride, flimE, flimI, hevthr
-%else ; luma
-cglobal vp8_%1_loop_filter16y_inner, 5, 5, 13, stack_size, dst, stride, flimE, flimI, hevthr
-%endif
-
-%if cpuflag(ssse3)
-    pxor             m7, m7
-%endif
-
-%ifndef m8
-    ; splat function arguments
-    SPLATB_REG       m0, flimEq, m7   ; E
-    SPLATB_REG       m1, flimIq, m7   ; I
-    SPLATB_REG       m2, hevthrq, m7  ; hev_thresh
-
-%define m_flimE    [rsp]
-%define m_flimI    [rsp+mmsize]
-%define m_hevthr   [rsp+mmsize*2]
-%define m_maskres  [rsp+mmsize*3]
-%define m_p0backup [rsp+mmsize*3]
-%define m_q0backup [rsp+mmsize*4]
-
-    mova        m_flimE, m0
-    mova        m_flimI, m1
-    mova       m_hevthr, m2
-%else
-%define m_flimE    m9
-%define m_flimI    m10
-%define m_hevthr   m11
-%define m_maskres  m12
-%define m_p0backup m12
-%define m_q0backup m8
-
-    ; splat function arguments
-    SPLATB_REG  m_flimE, flimEq, m7   ; E
-    SPLATB_REG  m_flimI, flimIq, m7   ; I
-    SPLATB_REG m_hevthr, hevthrq, m7  ; hev_thresh
-%endif
-
-%if %2 == 8 ; chroma
-    DEFINE_ARGS dst1, dst8, mstride, stride, dst2
-%elif mmsize == 8
-    DEFINE_ARGS dst1, mstride, stride, dst2, cntr
-    mov           cntrq, 2
-%else
-    DEFINE_ARGS dst1, mstride, stride, dst2, dst8
-%endif
-    mov         strideq, mstrideq
-    neg        mstrideq
-%ifidn %1, h
-    lea           dst1q, [dst1q+strideq*4-4]
-%if %2 == 8 ; chroma
-    lea           dst8q, [dst8q+strideq*4-4]
-%endif
-%endif
-
-%if mmsize == 8
-.next8px:
-%endif
-    ; read
-    lea           dst2q, [dst1q+strideq]
-%ifidn %1, v
-%if %2 == 8 && mmsize == 16
-%define movrow movh
-%else
-%define movrow mova
-%endif
-    movrow           m0, [dst1q+mstrideq*4] ; p3
-    movrow           m1, [dst2q+mstrideq*4] ; p2
-    movrow           m2, [dst1q+mstrideq*2] ; p1
-    movrow           m5, [dst2q]            ; q1
-    movrow           m6, [dst2q+ strideq*1] ; q2
-    movrow           m7, [dst2q+ strideq*2] ; q3
-%if mmsize == 16 && %2 == 8
-    movhps           m0, [dst8q+mstrideq*4]
-    movhps           m2, [dst8q+mstrideq*2]
-    add           dst8q, strideq
-    movhps           m1, [dst8q+mstrideq*4]
-    movhps           m5, [dst8q]
-    movhps           m6, [dst8q+ strideq  ]
-    movhps           m7, [dst8q+ strideq*2]
-    add           dst8q, mstrideq
-%endif
-%elif mmsize == 8 ; mmx/mmxext (h)
-    ; read 8 rows of 8px each
-    movu             m0, [dst1q+mstrideq*4]
-    movu             m1, [dst2q+mstrideq*4]
-    movu             m2, [dst1q+mstrideq*2]
-    movu             m3, [dst1q+mstrideq  ]
-    movu             m4, [dst1q]
-    movu             m5, [dst2q]
-    movu             m6, [dst2q+ strideq  ]
-
-    ; 8x8 transpose
-    TRANSPOSE4x4B     0, 1, 2, 3, 7
-    mova     m_q0backup, m1
-    movu             m7, [dst2q+ strideq*2]
-    TRANSPOSE4x4B     4, 5, 6, 7, 1
-    SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
-    SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
-    SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
-    mova             m1, m_q0backup
-    mova     m_q0backup, m2          ; store q0
-    SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
-    mova     m_p0backup, m5          ; store p0
-    SWAP              1, 4
-    SWAP              2, 4
-    SWAP              6, 3
-    SWAP              5, 3
-%else ; sse2 (h)
-%if %2 == 16
-    lea           dst8q, [dst1q+ strideq*8]
-%endif
-
-    ; read 16 rows of 8px each, interleave
-    movh             m0, [dst1q+mstrideq*4]
-    movh             m1, [dst8q+mstrideq*4]
-    movh             m2, [dst1q+mstrideq*2]
-    movh             m5, [dst8q+mstrideq*2]
-    movh             m3, [dst1q+mstrideq  ]
-    movh             m6, [dst8q+mstrideq  ]
-    movh             m4, [dst1q]
-    movh             m7, [dst8q]
-    punpcklbw        m0, m1          ; A/I
-    punpcklbw        m2, m5          ; C/K
-    punpcklbw        m3, m6          ; D/L
-    punpcklbw        m4, m7          ; E/M
-
-    add           dst8q, strideq
-    movh             m1, [dst2q+mstrideq*4]
-    movh             m6, [dst8q+mstrideq*4]
-    movh             m5, [dst2q]
-    movh             m7, [dst8q]
-    punpcklbw        m1, m6          ; B/J
-    punpcklbw        m5, m7          ; F/N
-    movh             m6, [dst2q+ strideq  ]
-    movh             m7, [dst8q+ strideq  ]
-    punpcklbw        m6, m7          ; G/O
-
-    ; 8x16 transpose
-    TRANSPOSE4x4B     0, 1, 2, 3, 7
-%ifdef m8
-    SWAP              1, 8
-%else
-    mova     m_q0backup, m1
-%endif
-    movh             m7, [dst2q+ strideq*2]
-    movh             m1, [dst8q+ strideq*2]
-    punpcklbw        m7, m1          ; H/P
-    TRANSPOSE4x4B     4, 5, 6, 7, 1
-    SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
-    SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
-    SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
-%ifdef m8
-    SWAP              1, 8
-    SWAP              2, 8
-%else
-    mova             m1, m_q0backup
-    mova     m_q0backup, m2          ; store q0
-%endif
-    SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
-%ifdef m12
-    SWAP              5, 12
-%else
-    mova     m_p0backup, m5          ; store p0
-%endif
-    SWAP              1, 4
-    SWAP              2, 4
-    SWAP              6, 3
-    SWAP              5, 3
-%endif
-
-    ; normal_limit for p3-p2, p2-p1, q3-q2 and q2-q1
-    mova             m4, m1
-    SWAP              4, 1
-    psubusb          m4, m0          ; p2-p3
-    psubusb          m0, m1          ; p3-p2
-    por              m0, m4          ; abs(p3-p2)
-
-    mova             m4, m2
-    SWAP              4, 2
-    psubusb          m4, m1          ; p1-p2
-    psubusb          m1, m2          ; p2-p1
-    por              m1, m4          ; abs(p2-p1)
-
-    mova             m4, m6
-    SWAP              4, 6
-    psubusb          m4, m7          ; q2-q3
-    psubusb          m7, m6          ; q3-q2
-    por              m7, m4          ; abs(q3-q2)
-
-    mova             m4, m5
-    SWAP              4, 5
-    psubusb          m4, m6          ; q1-q2
-    psubusb          m6, m5          ; q2-q1
-    por              m6, m4          ; abs(q2-q1)
-
-%if notcpuflag(mmxext)
-    mova             m4, m_flimI
-    pxor             m3, m3
-    psubusb          m0, m4
-    psubusb          m1, m4
-    psubusb          m7, m4
-    psubusb          m6, m4
-    pcmpeqb          m0, m3          ; abs(p3-p2) <= I
-    pcmpeqb          m1, m3          ; abs(p2-p1) <= I
-    pcmpeqb          m7, m3          ; abs(q3-q2) <= I
-    pcmpeqb          m6, m3          ; abs(q2-q1) <= I
-    pand             m0, m1
-    pand             m7, m6
-    pand             m0, m7
-%else ; mmxext/sse2
-    pmaxub           m0, m1
-    pmaxub           m6, m7
-    pmaxub           m0, m6
-%endif
-
-    ; normal_limit and high_edge_variance for p1-p0, q1-q0
-    SWAP              7, 3           ; now m7 is zero
-%ifidn %1, v
-    movrow           m3, [dst1q+mstrideq  ] ; p0
-%if mmsize == 16 && %2 == 8
-    movhps           m3, [dst8q+mstrideq  ]
-%endif
-%elifdef m12
-    SWAP              3, 12
-%else
-    mova             m3, m_p0backup
-%endif
-
-    mova             m1, m2
-    SWAP              1, 2
-    mova             m6, m3
-    SWAP              3, 6
-    psubusb          m1, m3          ; p1-p0
-    psubusb          m6, m2          ; p0-p1
-    por              m1, m6          ; abs(p1-p0)
-%if notcpuflag(mmxext)
-    mova             m6, m1
-    psubusb          m1, m4
-    psubusb          m6, m_hevthr
-    pcmpeqb          m1, m7          ; abs(p1-p0) <= I
-    pcmpeqb          m6, m7          ; abs(p1-p0) <= hev_thresh
-    pand             m0, m1
-    mova      m_maskres, m6
-%else ; mmxext/sse2
-    pmaxub           m0, m1          ; max_I
-    SWAP              1, 4           ; max_hev_thresh
-%endif
-
-    SWAP              6, 4           ; now m6 is I
-%ifidn %1, v
-    movrow           m4, [dst1q]     ; q0
-%if mmsize == 16 && %2 == 8
-    movhps           m4, [dst8q]
-%endif
-%elifdef m8
-    SWAP              4, 8
-%else
-    mova             m4, m_q0backup
-%endif
-    mova             m1, m4
-    SWAP              1, 4
-    mova             m7, m5
-    SWAP              7, 5
-    psubusb          m1, m5          ; q0-q1
-    psubusb          m7, m4          ; q1-q0
-    por              m1, m7          ; abs(q1-q0)
-%if notcpuflag(mmxext)
-    mova             m7, m1
-    psubusb          m1, m6
-    psubusb          m7, m_hevthr
-    pxor             m6, m6
-    pcmpeqb          m1, m6          ; abs(q1-q0) <= I
-    pcmpeqb          m7, m6          ; abs(q1-q0) <= hev_thresh
-    mova             m6, m_maskres
-    pand             m0, m1          ; abs([pq][321]-[pq][210]) <= I
-    pand             m6, m7
-%else ; mmxext/sse2
-    pxor             m7, m7
-    pmaxub           m0, m1
-    pmaxub           m6, m1
-    psubusb          m0, m_flimI
-    psubusb          m6, m_hevthr
-    pcmpeqb          m0, m7          ; max(abs(..)) <= I
-    pcmpeqb          m6, m7          ; !(max(abs..) > thresh)
-%endif
-%ifdef m12
-    SWAP              6, 12
-%else
-    mova      m_maskres, m6          ; !(abs(p1-p0) > hev_t || abs(q1-q0) > hev_t)
-%endif
-
-    ; simple_limit
-    mova             m1, m3
-    SWAP              1, 3
-    mova             m6, m4          ; keep copies of p0/q0 around for later use
-    SWAP              6, 4
-    psubusb          m1, m4          ; p0-q0
-    psubusb          m6, m3          ; q0-p0
-    por              m1, m6          ; abs(q0-p0)
-    paddusb          m1, m1          ; m1=2*abs(q0-p0)
-
-    mova             m7, m2
-    SWAP              7, 2
-    mova             m6, m5
-    SWAP              6, 5
-    psubusb          m7, m5          ; p1-q1
-    psubusb          m6, m2          ; q1-p1
-    por              m7, m6          ; abs(q1-p1)
-    pxor             m6, m6
-    pand             m7, [pb_FE]
-    psrlq            m7, 1           ; abs(q1-p1)/2
-    paddusb          m7, m1          ; abs(q0-p0)*2+abs(q1-p1)/2
-    psubusb          m7, m_flimE
-    pcmpeqb          m7, m6          ; abs(q0-p0)*2+abs(q1-p1)/2 <= E
-    pand             m0, m7          ; normal_limit result
-
-    ; filter_common; at this point, m2-m5=p1-q1 and m0 is filter_mask
-%ifdef m8 ; x86-64 && sse2
-    mova             m8, [pb_80]
-%define m_pb_80 m8
-%else ; x86-32 or mmx/mmxext
-%define m_pb_80 [pb_80]
-%endif
-    mova             m1, m4
-    mova             m7, m3
-    pxor             m1, m_pb_80
-    pxor             m7, m_pb_80
-    psubsb           m1, m7          ; (signed) q0-p0
-    mova             m6, m2
-    mova             m7, m5
-    pxor             m6, m_pb_80
-    pxor             m7, m_pb_80
-    psubsb           m6, m7          ; (signed) p1-q1
-    mova             m7, m_maskres
-    pandn            m7, m6
-    paddsb           m7, m1
-    paddsb           m7, m1
-    paddsb           m7, m1          ; 3*(q0-p0)+is4tap?(p1-q1)
-
-    pand             m7, m0
-    mova             m1, [pb_F8]
-    mova             m6, m7
-    paddsb           m7, [pb_3]
-    paddsb           m6, [pb_4]
-    pand             m7, m1
-    pand             m6, m1
-
-    pxor             m1, m1
-    pxor             m0, m0
-    pcmpgtb          m1, m7
-    psubb            m0, m7
-    psrlq            m7, 3           ; +f2
-    psrlq            m0, 3           ; -f2
-    pand             m0, m1
-    pandn            m1, m7
-    psubusb          m3, m0
-    paddusb          m3, m1          ; p0+f2
-
-    pxor             m1, m1
-    pxor             m0, m0
-    pcmpgtb          m0, m6
-    psubb            m1, m6
-    psrlq            m6, 3           ; +f1
-    psrlq            m1, 3           ; -f1
-    pand             m1, m0
-    pandn            m0, m6
-    psubusb          m4, m0
-    paddusb          m4, m1          ; q0-f1
-
-%ifdef m12
-    SWAP              6, 12
-%else
-    mova             m6, m_maskres
-%endif
-%if notcpuflag(mmxext)
-    mova             m7, [pb_1]
-%else ; mmxext/sse2
-    pxor             m7, m7
-%endif
-    pand             m0, m6
-    pand             m1, m6
-%if notcpuflag(mmxext)
-    paddusb          m0, m7
-    pand             m1, [pb_FE]
-    pandn            m7, m0
-    psrlq            m1, 1
-    psrlq            m7, 1
-    SWAP              0, 7
-%else ; mmxext/sse2
-    psubusb          m1, [pb_1]
-    pavgb            m0, m7          ; a
-    pavgb            m1, m7          ; -a
-%endif
-    psubusb          m5, m0
-    psubusb          m2, m1
-    paddusb          m5, m1          ; q1-a
-    paddusb          m2, m0          ; p1+a
-
-    ; store
-%ifidn %1, v
-    movrow [dst1q+mstrideq*2], m2
-    movrow [dst1q+mstrideq  ], m3
-    movrow      [dst1q], m4
-    movrow [dst1q+ strideq  ], m5
-%if mmsize == 16 && %2 == 8
-    movhps [dst8q+mstrideq*2], m2
-    movhps [dst8q+mstrideq  ], m3
-    movhps      [dst8q], m4
-    movhps [dst8q+ strideq  ], m5
-%endif
-%else ; h
-    add           dst1q, 2
-    add           dst2q, 2
-
-    ; 4x8/16 transpose
-    TRANSPOSE4x4B     2, 3, 4, 5, 6
-
-%if mmsize == 8 ; mmx/mmxext (h)
-    WRITE_4x2D        2, 3, 4, 5, dst1q, dst2q, mstrideq, strideq
-%else ; sse2 (h)
-    lea           dst8q, [dst8q+mstrideq  +2]
-    WRITE_4x4D        2, 3, 4, 5, dst1q, dst2q, dst8q, mstrideq, strideq, %2
-%endif
-%endif
-
-%if mmsize == 8
-%if %2 == 8 ; chroma
-%ifidn %1, h
-    sub           dst1q, 2
-%endif
-    cmp           dst1q, dst8q
-    mov           dst1q, dst8q
-    jnz .next8px
-%else
-%ifidn %1, h
-    lea           dst1q, [dst1q+ strideq*8-2]
-%else ; v
-    add           dst1q, 8
-%endif
-    dec           cntrq
-    jg .next8px
-%endif
-    REP_RET
-%else ; mmsize == 16
-    RET
-%endif
-%endmacro
-
-%if ARCH_X86_32
-INIT_MMX mmx
-INNER_LOOPFILTER v, 16
-INNER_LOOPFILTER h, 16
-INNER_LOOPFILTER v,  8
-INNER_LOOPFILTER h,  8
-
-INIT_MMX mmxext
-INNER_LOOPFILTER v, 16
-INNER_LOOPFILTER h, 16
-INNER_LOOPFILTER v,  8
-INNER_LOOPFILTER h,  8
-%endif
-
-INIT_XMM sse2
-INNER_LOOPFILTER v, 16
-INNER_LOOPFILTER h, 16
-INNER_LOOPFILTER v,  8
-INNER_LOOPFILTER h,  8
-
-INIT_XMM ssse3
-INNER_LOOPFILTER v, 16
-INNER_LOOPFILTER h, 16
-INNER_LOOPFILTER v,  8
-INNER_LOOPFILTER h,  8
-
-;-----------------------------------------------------------------------------
-; void vp8_h/v_loop_filter<size>_mbedge_<opt>(uint8_t *dst, [uint8_t *v,] int stride,
-;                                            int flimE, int flimI, int hev_thr);
-;-----------------------------------------------------------------------------
-
-%macro MBEDGE_LOOPFILTER 2
-%define stack_size 0
-%ifndef m8       ; stack layout: [0]=E, [1]=I, [2]=hev_thr
-%if mmsize == 16 ;               [3]=hev() result
-                 ;               [4]=filter tmp result
-                 ;               [5]/[6] = p2/q2 backup
-                 ;               [7]=lim_res sign result
-%define stack_size mmsize * -7
-%else ; 8        ; extra storage space for transposes
-%define stack_size mmsize * -8
-%endif
-%endif
-
-%if %2 == 8 ; chroma
-cglobal vp8_%1_loop_filter8uv_mbedge, 6, 6, 15, stack_size, dst1, dst8, stride, flimE, flimI, hevthr
-%else ; luma
-cglobal vp8_%1_loop_filter16y_mbedge, 5, 5, 15, stack_size, dst1, stride, flimE, flimI, hevthr
-%endif
-
-%if cpuflag(ssse3)
-    pxor             m7, m7
-%endif
-
-%ifndef m8
-    ; splat function arguments
-    SPLATB_REG       m0, flimEq, m7   ; E
-    SPLATB_REG       m1, flimIq, m7   ; I
-    SPLATB_REG       m2, hevthrq, m7  ; hev_thresh
-
-%define m_flimE    [rsp]
-%define m_flimI    [rsp+mmsize]
-%define m_hevthr   [rsp+mmsize*2]
-%define m_maskres  [rsp+mmsize*3]
-%define m_limres   [rsp+mmsize*4]
-%define m_p0backup [rsp+mmsize*3]
-%define m_q0backup [rsp+mmsize*4]
-%define m_p2backup [rsp+mmsize*5]
-%define m_q2backup [rsp+mmsize*6]
-%if mmsize == 16
-%define m_limsign  [rsp]
-%else
-%define m_limsign  [rsp+mmsize*7]
-%endif
-
-    mova        m_flimE, m0
-    mova        m_flimI, m1
-    mova       m_hevthr, m2
-%else ; sse2 on x86-64
-%define m_flimE    m9
-%define m_flimI    m10
-%define m_hevthr   m11
-%define m_maskres  m12
-%define m_limres   m8
-%define m_p0backup m12
-%define m_q0backup m8
-%define m_p2backup m13
-%define m_q2backup m14
-%define m_limsign  m9
-
-    ; splat function arguments
-    SPLATB_REG  m_flimE, flimEq, m7   ; E
-    SPLATB_REG  m_flimI, flimIq, m7   ; I
-    SPLATB_REG m_hevthr, hevthrq, m7  ; hev_thresh
-%endif
-
-%if %2 == 8 ; chroma
-    DEFINE_ARGS dst1, dst8, mstride, stride, dst2
-%elif mmsize == 8
-    DEFINE_ARGS dst1, mstride, stride, dst2, cntr
-    mov           cntrq, 2
-%else
-    DEFINE_ARGS dst1, mstride, stride, dst2, dst8
-%endif
-    mov         strideq, mstrideq
-    neg        mstrideq
-%ifidn %1, h
-    lea           dst1q, [dst1q+strideq*4-4]
-%if %2 == 8 ; chroma
-    lea           dst8q, [dst8q+strideq*4-4]
-%endif
-%endif
-
-%if mmsize == 8
-.next8px:
-%endif
-    ; read
-    lea           dst2q, [dst1q+ strideq  ]
-%ifidn %1, v
-%if %2 == 8 && mmsize == 16
-%define movrow movh
-%else
-%define movrow mova
-%endif
-    movrow           m0, [dst1q+mstrideq*4] ; p3
-    movrow           m1, [dst2q+mstrideq*4] ; p2
-    movrow           m2, [dst1q+mstrideq*2] ; p1
-    movrow           m5, [dst2q]            ; q1
-    movrow           m6, [dst2q+ strideq  ] ; q2
-    movrow           m7, [dst2q+ strideq*2] ; q3
-%if mmsize == 16 && %2 == 8
-    movhps           m0, [dst8q+mstrideq*4]
-    movhps           m2, [dst8q+mstrideq*2]
-    add           dst8q, strideq
-    movhps           m1, [dst8q+mstrideq*4]
-    movhps           m5, [dst8q]
-    movhps           m6, [dst8q+ strideq  ]
-    movhps           m7, [dst8q+ strideq*2]
-    add           dst8q, mstrideq
-%endif
-%elif mmsize == 8 ; mmx/mmxext (h)
-    ; read 8 rows of 8px each
-    movu             m0, [dst1q+mstrideq*4]
-    movu             m1, [dst2q+mstrideq*4]
-    movu             m2, [dst1q+mstrideq*2]
-    movu             m3, [dst1q+mstrideq  ]
-    movu             m4, [dst1q]
-    movu             m5, [dst2q]
-    movu             m6, [dst2q+ strideq  ]
-
-    ; 8x8 transpose
-    TRANSPOSE4x4B     0, 1, 2, 3, 7
-    mova     m_q0backup, m1
-    movu             m7, [dst2q+ strideq*2]
-    TRANSPOSE4x4B     4, 5, 6, 7, 1
-    SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
-    SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
-    SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
-    mova             m1, m_q0backup
-    mova     m_q0backup, m2          ; store q0
-    SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
-    mova     m_p0backup, m5          ; store p0
-    SWAP              1, 4
-    SWAP              2, 4
-    SWAP              6, 3
-    SWAP              5, 3
-%else ; sse2 (h)
-%if %2 == 16
-    lea           dst8q, [dst1q+ strideq*8  ]
-%endif
-
-    ; read 16 rows of 8px each, interleave
-    movh             m0, [dst1q+mstrideq*4]
-    movh             m1, [dst8q+mstrideq*4]
-    movh             m2, [dst1q+mstrideq*2]
-    movh             m5, [dst8q+mstrideq*2]
-    movh             m3, [dst1q+mstrideq  ]
-    movh             m6, [dst8q+mstrideq  ]
-    movh             m4, [dst1q]
-    movh             m7, [dst8q]
-    punpcklbw        m0, m1          ; A/I
-    punpcklbw        m2, m5          ; C/K
-    punpcklbw        m3, m6          ; D/L
-    punpcklbw        m4, m7          ; E/M
-
-    add           dst8q, strideq
-    movh             m1, [dst2q+mstrideq*4]
-    movh             m6, [dst8q+mstrideq*4]
-    movh             m5, [dst2q]
-    movh             m7, [dst8q]
-    punpcklbw        m1, m6          ; B/J
-    punpcklbw        m5, m7          ; F/N
-    movh             m6, [dst2q+ strideq  ]
-    movh             m7, [dst8q+ strideq  ]
-    punpcklbw        m6, m7          ; G/O
-
-    ; 8x16 transpose
-    TRANSPOSE4x4B     0, 1, 2, 3, 7
-%ifdef m8
-    SWAP              1, 8
-%else
-    mova     m_q0backup, m1
-%endif
-    movh             m7, [dst2q+ strideq*2]
-    movh             m1, [dst8q+ strideq*2]
-    punpcklbw        m7, m1          ; H/P
-    TRANSPOSE4x4B     4, 5, 6, 7, 1
-    SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
-    SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
-    SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
-%ifdef m8
-    SWAP              1, 8
-    SWAP              2, 8
-%else
-    mova             m1, m_q0backup
-    mova     m_q0backup, m2          ; store q0
-%endif
-    SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
-%ifdef m12
-    SWAP              5, 12
-%else
-    mova     m_p0backup, m5          ; store p0
-%endif
-    SWAP              1, 4
-    SWAP              2, 4
-    SWAP              6, 3
-    SWAP              5, 3
-%endif
-
-    ; normal_limit for p3-p2, p2-p1, q3-q2 and q2-q1
-    mova             m4, m1
-    SWAP              4, 1
-    psubusb          m4, m0          ; p2-p3
-    psubusb          m0, m1          ; p3-p2
-    por              m0, m4          ; abs(p3-p2)
-
-    mova             m4, m2
-    SWAP              4, 2
-    psubusb          m4, m1          ; p1-p2
-    mova     m_p2backup, m1
-    psubusb          m1, m2          ; p2-p1
-    por              m1, m4          ; abs(p2-p1)
-
-    mova             m4, m6
-    SWAP              4, 6
-    psubusb          m4, m7          ; q2-q3
-    psubusb          m7, m6          ; q3-q2
-    por              m7, m4          ; abs(q3-q2)
-
-    mova             m4, m5
-    SWAP              4, 5
-    psubusb          m4, m6          ; q1-q2
-    mova     m_q2backup, m6
-    psubusb          m6, m5          ; q2-q1
-    por              m6, m4          ; abs(q2-q1)
-
-%if notcpuflag(mmxext)
-    mova             m4, m_flimI
-    pxor             m3, m3
-    psubusb          m0, m4
-    psubusb          m1, m4
-    psubusb          m7, m4
-    psubusb          m6, m4
-    pcmpeqb          m0, m3          ; abs(p3-p2) <= I
-    pcmpeqb          m1, m3          ; abs(p2-p1) <= I
-    pcmpeqb          m7, m3          ; abs(q3-q2) <= I
-    pcmpeqb          m6, m3          ; abs(q2-q1) <= I
-    pand             m0, m1
-    pand             m7, m6
-    pand             m0, m7
-%else ; mmxext/sse2
-    pmaxub           m0, m1
-    pmaxub           m6, m7
-    pmaxub           m0, m6
-%endif
-
-    ; normal_limit and high_edge_variance for p1-p0, q1-q0
-    SWAP              7, 3           ; now m7 is zero
-%ifidn %1, v
-    movrow           m3, [dst1q+mstrideq  ] ; p0
-%if mmsize == 16 && %2 == 8
-    movhps           m3, [dst8q+mstrideq  ]
-%endif
-%elifdef m12
-    SWAP              3, 12
-%else
-    mova             m3, m_p0backup
-%endif
-
-    mova             m1, m2
-    SWAP              1, 2
-    mova             m6, m3
-    SWAP              3, 6
-    psubusb          m1, m3          ; p1-p0
-    psubusb          m6, m2          ; p0-p1
-    por              m1, m6          ; abs(p1-p0)
-%if notcpuflag(mmxext)
-    mova             m6, m1
-    psubusb          m1, m4
-    psubusb          m6, m_hevthr
-    pcmpeqb          m1, m7          ; abs(p1-p0) <= I
-    pcmpeqb          m6, m7          ; abs(p1-p0) <= hev_thresh
-    pand             m0, m1
-    mova      m_maskres, m6
-%else ; mmxext/sse2
-    pmaxub           m0, m1          ; max_I
-    SWAP              1, 4           ; max_hev_thresh
-%endif
-
-    SWAP              6, 4           ; now m6 is I
-%ifidn %1, v
-    movrow           m4, [dst1q]     ; q0
-%if mmsize == 16 && %2 == 8
-    movhps           m4, [dst8q]
-%endif
-%elifdef m8
-    SWAP              4, 8
-%else
-    mova             m4, m_q0backup
-%endif
-    mova             m1, m4
-    SWAP              1, 4
-    mova             m7, m5
-    SWAP              7, 5
-    psubusb          m1, m5          ; q0-q1
-    psubusb          m7, m4          ; q1-q0
-    por              m1, m7          ; abs(q1-q0)
-%if notcpuflag(mmxext)
-    mova             m7, m1
-    psubusb          m1, m6
-    psubusb          m7, m_hevthr
-    pxor             m6, m6
-    pcmpeqb          m1, m6          ; abs(q1-q0) <= I
-    pcmpeqb          m7, m6          ; abs(q1-q0) <= hev_thresh
-    mova             m6, m_maskres
-    pand             m0, m1          ; abs([pq][321]-[pq][210]) <= I
-    pand             m6, m7
-%else ; mmxext/sse2
-    pxor             m7, m7
-    pmaxub           m0, m1
-    pmaxub           m6, m1
-    psubusb          m0, m_flimI
-    psubusb          m6, m_hevthr
-    pcmpeqb          m0, m7          ; max(abs(..)) <= I
-    pcmpeqb          m6, m7          ; !(max(abs..) > thresh)
-%endif
-%ifdef m12
-    SWAP              6, 12
-%else
-    mova      m_maskres, m6          ; !(abs(p1-p0) > hev_t || abs(q1-q0) > hev_t)
-%endif
-
-    ; simple_limit
-    mova             m1, m3
-    SWAP              1, 3
-    mova             m6, m4          ; keep copies of p0/q0 around for later use
-    SWAP              6, 4
-    psubusb          m1, m4          ; p0-q0
-    psubusb          m6, m3          ; q0-p0
-    por              m1, m6          ; abs(q0-p0)
-    paddusb          m1, m1          ; m1=2*abs(q0-p0)
-
-    mova             m7, m2
-    SWAP              7, 2
-    mova             m6, m5
-    SWAP              6, 5
-    psubusb          m7, m5          ; p1-q1
-    psubusb          m6, m2          ; q1-p1
-    por              m7, m6          ; abs(q1-p1)
-    pxor             m6, m6
-    pand             m7, [pb_FE]
-    psrlq            m7, 1           ; abs(q1-p1)/2
-    paddusb          m7, m1          ; abs(q0-p0)*2+abs(q1-p1)/2
-    psubusb          m7, m_flimE
-    pcmpeqb          m7, m6          ; abs(q0-p0)*2+abs(q1-p1)/2 <= E
-    pand             m0, m7          ; normal_limit result
-
-    ; filter_common; at this point, m2-m5=p1-q1 and m0 is filter_mask
-%ifdef m8 ; x86-64 && sse2
-    mova             m8, [pb_80]
-%define m_pb_80 m8
-%else ; x86-32 or mmx/mmxext
-%define m_pb_80 [pb_80]
-%endif
-    mova             m1, m4
-    mova             m7, m3
-    pxor             m1, m_pb_80
-    pxor             m7, m_pb_80
-    psubsb           m1, m7          ; (signed) q0-p0
-    mova             m6, m2
-    mova             m7, m5
-    pxor             m6, m_pb_80
-    pxor             m7, m_pb_80
-    psubsb           m6, m7          ; (signed) p1-q1
-    mova             m7, m_maskres
-    paddsb           m6, m1
-    paddsb           m6, m1
-    paddsb           m6, m1
-    pand             m6, m0
-%ifdef m8
-    mova       m_limres, m6          ; 3*(qp-p0)+(p1-q1) masked for filter_mbedge
-    pand       m_limres, m7
-%else
-    mova             m0, m6
-    pand             m0, m7
-    mova       m_limres, m0
-%endif
-    pandn            m7, m6          ; 3*(q0-p0)+(p1-q1) masked for filter_common
-
-    mova             m1, [pb_F8]
-    mova             m6, m7
-    paddsb           m7, [pb_3]
-    paddsb           m6, [pb_4]
-    pand             m7, m1
-    pand             m6, m1
-
-    pxor             m1, m1
-    pxor             m0, m0
-    pcmpgtb          m1, m7
-    psubb            m0, m7
-    psrlq            m7, 3           ; +f2
-    psrlq            m0, 3           ; -f2
-    pand             m0, m1
-    pandn            m1, m7
-    psubusb          m3, m0
-    paddusb          m3, m1          ; p0+f2
-
-    pxor             m1, m1
-    pxor             m0, m0
-    pcmpgtb          m0, m6
-    psubb            m1, m6
-    psrlq            m6, 3           ; +f1
-    psrlq            m1, 3           ; -f1
-    pand             m1, m0
-    pandn            m0, m6
-    psubusb          m4, m0
-    paddusb          m4, m1          ; q0-f1
-
-    ; filter_mbedge (m2-m5 = p1-q1; lim_res carries w)
-%if cpuflag(ssse3)
-    mova             m7, [pb_1]
-%else
-    mova             m7, [pw_63]
-%endif
-%ifdef m8
-    SWAP              1, 8
-%else
-    mova             m1, m_limres
-%endif
-    pxor             m0, m0
-    mova             m6, m1
-    pcmpgtb          m0, m1         ; which are negative
-%if cpuflag(ssse3)
-    punpcklbw        m6, m7         ; interleave with "1" for rounding
-    punpckhbw        m1, m7
-%else
-    punpcklbw        m6, m0         ; signed byte->word
-    punpckhbw        m1, m0
-%endif
-    mova      m_limsign, m0
-%if cpuflag(ssse3)
-    mova             m7, [pb_27_63]
-%ifndef m8
-    mova       m_limres, m1
-%endif
-%ifdef m10
-    SWAP              0, 10         ; don't lose lim_sign copy
-%endif
-    mova             m0, m7
-    pmaddubsw        m7, m6
-    SWAP              6, 7
-    pmaddubsw        m0, m1
-    SWAP              1, 0
-%ifdef m10
-    SWAP              0, 10
-%else
-    mova             m0, m_limsign
-%endif
-%else
-    mova      m_maskres, m6         ; backup for later in filter
-    mova       m_limres, m1
-    pmullw          m6, [pw_27]
-    pmullw          m1, [pw_27]
-    paddw           m6, m7
-    paddw           m1, m7
-%endif
-    psraw           m6, 7
-    psraw           m1, 7
-    packsswb        m6, m1          ; a0
-    pxor            m1, m1
-    psubb           m1, m6
-    pand            m1, m0          ; -a0
-    pandn           m0, m6          ; +a0
-%if cpuflag(ssse3)
-    mova            m6, [pb_18_63]  ; pipelining
-%endif
-    psubusb         m3, m1
-    paddusb         m4, m1
-    paddusb         m3, m0          ; p0+a0
-    psubusb         m4, m0          ; q0-a0
-
-%if cpuflag(ssse3)
-    SWAP             6, 7
-%ifdef m10
-    SWAP             1, 10
-%else
-    mova            m1, m_limres
-%endif
-    mova            m0, m7
-    pmaddubsw       m7, m6
-    SWAP             6, 7
-    pmaddubsw       m0, m1
-    SWAP             1, 0
-%ifdef m10
-    SWAP             0, 10
-%endif
-    mova            m0, m_limsign
-%else
-    mova            m6, m_maskres
-    mova            m1, m_limres
-    pmullw          m6, [pw_18]
-    pmullw          m1, [pw_18]
-    paddw           m6, m7
-    paddw           m1, m7
-%endif
-    mova            m0, m_limsign
-    psraw           m6, 7
-    psraw           m1, 7
-    packsswb        m6, m1          ; a1
-    pxor            m1, m1
-    psubb           m1, m6
-    pand            m1, m0          ; -a1
-    pandn           m0, m6          ; +a1
-%if cpuflag(ssse3)
-    mova            m6, [pb_9_63]
-%endif
-    psubusb         m2, m1
-    paddusb         m5, m1
-    paddusb         m2, m0          ; p1+a1
-    psubusb         m5, m0          ; q1-a1
-
-%if cpuflag(ssse3)
-    SWAP             6, 7
-%ifdef m10
-    SWAP             1, 10
-%else
-    mova            m1, m_limres
-%endif
-    mova            m0, m7
-    pmaddubsw       m7, m6
-    SWAP             6, 7
-    pmaddubsw       m0, m1
-    SWAP             1, 0
-%else
-%ifdef m8
-    SWAP             6, 12
-    SWAP             1, 8
-%else
-    mova            m6, m_maskres
-    mova            m1, m_limres
-%endif
-    pmullw          m6, [pw_9]
-    pmullw          m1, [pw_9]
-    paddw           m6, m7
-    paddw           m1, m7
-%endif
-%ifdef m9
-    SWAP             7, 9
-%else
-    mova            m7, m_limsign
-%endif
-    psraw           m6, 7
-    psraw           m1, 7
-    packsswb        m6, m1          ; a1
-    pxor            m0, m0
-    psubb           m0, m6
-    pand            m0, m7          ; -a1
-    pandn           m7, m6          ; +a1
-%ifdef m8
-    SWAP             1, 13
-    SWAP             6, 14
-%else
-    mova            m1, m_p2backup
-    mova            m6, m_q2backup
-%endif
-    psubusb         m1, m0
-    paddusb         m6, m0
-    paddusb         m1, m7          ; p1+a1
-    psubusb         m6, m7          ; q1-a1
-
-    ; store
-%ifidn %1, v
-    movrow [dst2q+mstrideq*4], m1
-    movrow [dst1q+mstrideq*2], m2
-    movrow [dst1q+mstrideq  ], m3
-    movrow     [dst1q], m4
-    movrow     [dst2q], m5
-    movrow [dst2q+ strideq  ], m6
-%if mmsize == 16 && %2 == 8
-    add           dst8q, mstrideq
-    movhps [dst8q+mstrideq*2], m1
-    movhps [dst8q+mstrideq  ], m2
-    movhps     [dst8q], m3
-    add          dst8q, strideq
-    movhps     [dst8q], m4
-    movhps [dst8q+ strideq  ], m5
-    movhps [dst8q+ strideq*2], m6
-%endif
-%else ; h
-    inc          dst1q
-    inc          dst2q
-
-    ; 4x8/16 transpose
-    TRANSPOSE4x4B    1, 2, 3, 4, 0
-    SBUTTERFLY      bw, 5, 6, 0
-
-%if mmsize == 8 ; mmx/mmxext (h)
-    WRITE_4x2D       1, 2, 3, 4, dst1q, dst2q, mstrideq, strideq
-    add          dst1q, 4
-    WRITE_2x4W      m5, m6, dst2q, dst1q, mstrideq, strideq
-%else ; sse2 (h)
-    lea          dst8q, [dst8q+mstrideq+1]
-    WRITE_4x4D       1, 2, 3, 4, dst1q, dst2q, dst8q, mstrideq, strideq, %2
-    lea          dst1q, [dst2q+mstrideq+4]
-    lea          dst8q, [dst8q+mstrideq+4]
-%if cpuflag(sse4)
-    add          dst2q, 4
-%endif
-    WRITE_8W        m5, dst2q, dst1q,  mstrideq, strideq
-%if cpuflag(sse4)
-    lea          dst2q, [dst8q+ strideq  ]
-%endif
-    WRITE_8W        m6, dst2q, dst8q, mstrideq, strideq
-%endif
-%endif
-
-%if mmsize == 8
-%if %2 == 8 ; chroma
-%ifidn %1, h
-    sub          dst1q, 5
-%endif
-    cmp          dst1q, dst8q
-    mov          dst1q, dst8q
-    jnz .next8px
-%else
-%ifidn %1, h
-    lea          dst1q, [dst1q+ strideq*8-5]
-%else ; v
-    add          dst1q, 8
-%endif
-    dec          cntrq
-    jg .next8px
-%endif
-    REP_RET
-%else ; mmsize == 16
-    RET
-%endif
-%endmacro
-
-%if ARCH_X86_32
-INIT_MMX mmx
-MBEDGE_LOOPFILTER v, 16
-MBEDGE_LOOPFILTER h, 16
-MBEDGE_LOOPFILTER v,  8
-MBEDGE_LOOPFILTER h,  8
-
-INIT_MMX mmxext
-MBEDGE_LOOPFILTER v, 16
-MBEDGE_LOOPFILTER h, 16
-MBEDGE_LOOPFILTER v,  8
-MBEDGE_LOOPFILTER h,  8
-%endif
-
-INIT_XMM sse2
-MBEDGE_LOOPFILTER v, 16
-MBEDGE_LOOPFILTER h, 16
-MBEDGE_LOOPFILTER v,  8
-MBEDGE_LOOPFILTER h,  8
-
-INIT_XMM ssse3
-MBEDGE_LOOPFILTER v, 16
-MBEDGE_LOOPFILTER h, 16
-MBEDGE_LOOPFILTER v,  8
-MBEDGE_LOOPFILTER h,  8
-
-INIT_XMM sse4
-MBEDGE_LOOPFILTER h, 16
-MBEDGE_LOOPFILTER h,  8

libavcodec/x86/vp8dsp_loopfilter.asm

+;******************************************************************************
+;* VP8 MMXEXT optimizations
+;* Copyright (c) 2010 Ronald S. Bultje <rsbultje@gmail.com>
+;* Copyright (c) 2010 Jason Garrett-Glaser <darkshikari@gmail.com>
+;*
+;* This file is part of Libav.
+;*
+;* Libav is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* Libav is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with Libav; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_RODATA
+
+pw_27:    times 8 dw 27
+pw_63:    times 8 dw 63
+
+pb_4:     times 16 db 4
+pb_F8:    times 16 db 0xF8
+pb_FE:    times 16 db 0xFE
+pb_27_63: times 8 db 27, 63
+pb_18_63: times 8 db 18, 63
+pb_9_63:  times 8 db  9, 63
+
+cextern pb_1
+cextern pb_3
+cextern pw_9
+cextern pw_18
+cextern pb_80
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+; void vp8_h/v_loop_filter_simple_<opt>(uint8_t *dst, int stride, int flim);
+;-----------------------------------------------------------------------------
+
+; macro called with 7 mm register indexes as argument, and 4 regular registers
+;
+; first 4 mm registers will carry the transposed pixel data
+; the other three are scratchspace (one would be sufficient, but this allows
+; for more spreading/pipelining and thus faster execution on OOE CPUs)
+;
+; first two regular registers are buf+4*stride and buf+5*stride
+; third is -stride, fourth is +stride
+%macro READ_8x4_INTERLEAVED 11
+    ; interleave 8 (A-H) rows of 4 pixels each
+    movd          m%1, [%8+%10*4]   ; A0-3
+    movd          m%5, [%9+%10*4]   ; B0-3
+    movd          m%2, [%8+%10*2]   ; C0-3
+    movd          m%6, [%8+%10]     ; D0-3
+    movd          m%3, [%8]         ; E0-3
+    movd          m%7, [%9]         ; F0-3
+    movd          m%4, [%9+%11]     ; G0-3
+    punpcklbw     m%1, m%5          ; A/B interleaved
+    movd          m%5, [%9+%11*2]   ; H0-3
+    punpcklbw     m%2, m%6          ; C/D interleaved
+    punpcklbw     m%3, m%7          ; E/F interleaved
+    punpcklbw     m%4, m%5          ; G/H interleaved
+%endmacro
+
+; macro called with 7 mm register indexes as argument, and 5 regular registers
+; first 11 mean the same as READ_8x4_TRANSPOSED above
+; fifth regular register is scratchspace to reach the bottom 8 rows, it
+; will be set to second regular register + 8*stride at the end
+%macro READ_16x4_INTERLEAVED 12
+    ; transpose 16 (A-P) rows of 4 pixels each
+    lea           %12, [r0+8*r2]
+
+    ; read (and interleave) those addressable by %8 (=r0), A/C/D/E/I/K/L/M
+    movd          m%1, [%8+%10*4]   ; A0-3
+    movd          m%3, [%12+%10*4]  ; I0-3
+    movd          m%2, [%8+%10*2]   ; C0-3
+    movd          m%4, [%12+%10*2]  ; K0-3
+    movd          m%6, [%8+%10]     ; D0-3
+    movd          m%5, [%12+%10]    ; L0-3
+    movd          m%7, [%12]        ; M0-3
+    add           %12, %11
+    punpcklbw     m%1, m%3          ; A/I
+    movd          m%3, [%8]         ; E0-3
+    punpcklbw     m%2, m%4          ; C/K
+    punpcklbw     m%6, m%5          ; D/L
+    punpcklbw     m%3, m%7          ; E/M
+    punpcklbw     m%2, m%6          ; C/D/K/L interleaved
+
+    ; read (and interleave) those addressable by %9 (=r4), B/F/G/H/J/N/O/P
+    movd         m%5, [%9+%10*4]   ; B0-3
+    movd         m%4, [%12+%10*4]  ; J0-3
+    movd         m%7, [%9]         ; F0-3
+    movd         m%6, [%12]        ; N0-3
+    punpcklbw    m%5, m%4          ; B/J
+    punpcklbw    m%7, m%6          ; F/N
+    punpcklbw    m%1, m%5          ; A/B/I/J interleaved
+    punpcklbw    m%3, m%7          ; E/F/M/N interleaved
+    movd         m%4, [%9+%11]     ; G0-3
+    movd         m%6, [%12+%11]    ; O0-3
+    movd         m%5, [%9+%11*2]   ; H0-3
+    movd         m%7, [%12+%11*2]  ; P0-3
+    punpcklbw    m%4, m%6          ; G/O
+    punpcklbw    m%5, m%7          ; H/P
+    punpcklbw    m%4, m%5          ; G/H/O/P interleaved
+%endmacro
+
+; write 4 mm registers of 2 dwords each
+; first four arguments are mm register indexes containing source data
+; last four are registers containing buf+4*stride, buf+5*stride,
+; -stride and +stride
+%macro WRITE_4x2D 8
+    ; write out (2 dwords per register)
+    movd    [%5+%7*4], m%1
+    movd    [%5+%7*2], m%2
+    movd         [%5], m%3
+    movd      [%6+%8], m%4
+    punpckhdq     m%1, m%1
+    punpckhdq     m%2, m%2
+    punpckhdq     m%3, m%3
+    punpckhdq     m%4, m%4
+    movd    [%6+%7*4], m%1
+    movd      [%5+%7], m%2
+    movd         [%6], m%3
+    movd    [%6+%8*2], m%4
+%endmacro
+
+; write 4 xmm registers of 4 dwords each
+; arguments same as WRITE_2x4D, but with an extra register, so that the 5 regular
+; registers contain buf+4*stride, buf+5*stride, buf+12*stride, -stride and +stride
+; we add 1*stride to the third regular registry in the process
+; the 10th argument is 16 if it's a Y filter (i.e. all regular registers cover the
+; same memory region), or 8 if they cover two separate buffers (third one points to
+; a different memory region than the first two), allowing for more optimal code for
+; the 16-width case
+%macro WRITE_4x4D 10
+    ; write out (4 dwords per register), start with dwords zero
+    movd    [%5+%8*4], m%1
+    movd         [%5], m%2
+    movd    [%7+%8*4], m%3
+    movd         [%7], m%4
+
+    ; store dwords 1
+    psrldq        m%1, 4
+    psrldq        m%2, 4
+    psrldq        m%3, 4
+    psrldq        m%4, 4
+    movd    [%6+%8*4], m%1
+    movd         [%6], m%2
+%if %10 == 16
+    movd    [%6+%9*4], m%3
+%endif
+    movd      [%7+%9], m%4
+
+    ; write dwords 2
+    psrldq        m%1, 4
+    psrldq        m%2, 4
+%if %10 == 8
+    movd    [%5+%8*2], m%1
+    movd          %5d, m%3
+%endif
+    psrldq        m%3, 4
+    psrldq        m%4, 4
+%if %10 == 16
+    movd    [%5+%8*2], m%1
+%endif
+    movd      [%6+%9], m%2
+    movd    [%7+%8*2], m%3
+    movd    [%7+%9*2], m%4
+    add            %7, %9
+
+    ; store dwords 3
+    psrldq        m%1, 4
+    psrldq        m%2, 4
+    psrldq        m%3, 4
+    psrldq        m%4, 4
+%if %10 == 8
+    mov     [%7+%8*4], %5d
+    movd    [%6+%8*2], m%1
+%else
+    movd      [%5+%8], m%1
+%endif
+    movd    [%6+%9*2], m%2
+    movd    [%7+%8*2], m%3
+    movd    [%7+%9*2], m%4
+%endmacro
+
+; write 4 or 8 words in the mmx/xmm registers as 8 lines
+; 1 and 2 are the registers to write, this can be the same (for SSE2)
+; for pre-SSE4:
+; 3 is a general-purpose register that we will clobber
+; for SSE4:
+; 3 is a pointer to the destination's 5th line
+; 4 is a pointer to the destination's 4th line
+; 5/6 is -stride and +stride
+%macro WRITE_2x4W 6
+    movd            %3d, %1
+    punpckhdq        %1, %1
+    mov       [%4+%5*4], %3w
+    shr              %3, 16
+    add              %4, %6
+    mov       [%4+%5*4], %3w
+
+    movd            %3d, %1
+    add              %4, %5
+    mov       [%4+%5*2], %3w
+    shr              %3, 16
+    mov       [%4+%5  ], %3w
+
+    movd            %3d, %2
+    punpckhdq        %2, %2
+    mov       [%4     ], %3w
+    shr              %3, 16
+    mov       [%4+%6  ], %3w
+
+    movd            %3d, %2
+    add              %4, %6
+    mov       [%4+%6  ], %3w
+    shr              %3, 16
+    mov       [%4+%6*2], %3w
+    add              %4, %5
+%endmacro
+
+%macro WRITE_8W 5
+%if cpuflag(sse4)
+    pextrw    [%3+%4*4], %1, 0
+    pextrw    [%2+%4*4], %1, 1
+    pextrw    [%3+%4*2], %1, 2
+    pextrw    [%3+%4  ], %1, 3
+    pextrw    [%3     ], %1, 4
+    pextrw    [%2     ], %1, 5
+    pextrw    [%2+%5  ], %1, 6
+    pextrw    [%2+%5*2], %1, 7
+%else
+    movd            %2d, %1
+    psrldq           %1, 4
+    mov       [%3+%4*4], %2w
+    shr              %2, 16
+    add              %3, %5
+    mov       [%3+%4*4], %2w
+
+    movd            %2d, %1
+    psrldq           %1, 4
+    add              %3, %4
+    mov       [%3+%4*2], %2w
+    shr              %2, 16
+    mov       [%3+%4  ], %2w
+
+    movd            %2d, %1
+    psrldq           %1, 4
+    mov       [%3     ], %2w
+    shr              %2, 16
+    mov       [%3+%5  ], %2w
+
+    movd            %2d, %1
+    add              %3, %5
+    mov       [%3+%5  ], %2w
+    shr              %2, 16
+    mov       [%3+%5*2], %2w
+%endif
+%endmacro
+
+%macro SIMPLE_LOOPFILTER 2
+cglobal vp8_%1_loop_filter_simple, 3, %2, 8, dst, stride, flim, cntr
+%if mmsize == 8 ; mmx/mmxext
+    mov         cntrq, 2
+%endif
+%if cpuflag(ssse3)
+    pxor           m0, m0
+%endif
+    SPLATB_REG     m7, flim, m0     ; splat "flim" into register
+
+    ; set up indexes to address 4 rows
+%if mmsize == 8
+    DEFINE_ARGS dst1, mstride, stride, cntr, dst2
+%else
+    DEFINE_ARGS dst1, mstride, stride, dst3, dst2
+%endif
+    mov       strideq, mstrideq
+    neg      mstrideq
+%ifidn %1, h
+    lea         dst1q, [dst1q+4*strideq-2]
+%endif
+
+%if mmsize == 8 ; mmx / mmxext
+.next8px:
+%endif
+%ifidn %1, v
+    ; read 4 half/full rows of pixels
+    mova           m0, [dst1q+mstrideq*2]    ; p1
+    mova           m1, [dst1q+mstrideq]      ; p0
+    mova           m2, [dst1q]               ; q0
+    mova           m3, [dst1q+ strideq]      ; q1
+%else ; h
+    lea         dst2q, [dst1q+ strideq]
+
+%if mmsize == 8 ; mmx/mmxext
+    READ_8x4_INTERLEAVED  0, 1, 2, 3, 4, 5, 6, dst1q, dst2q, mstrideq, strideq
+%else ; sse2
+    READ_16x4_INTERLEAVED 0, 1, 2, 3, 4, 5, 6, dst1q, dst2q, mstrideq, strideq, dst3q
+%endif
+    TRANSPOSE4x4W         0, 1, 2, 3, 4
+%endif
+
+    ; simple_limit
+    mova           m5, m2           ; m5=backup of q0
+    mova           m6, m1           ; m6=backup of p0
+    psubusb        m1, m2           ; p0-q0
+    psubusb        m2, m6           ; q0-p0
+    por            m1, m2           ; FFABS(p0-q0)
+    paddusb        m1, m1           ; m1=FFABS(p0-q0)*2
+
+    mova           m4, m3
+    mova           m2, m0
+    psubusb        m3, m0           ; q1-p1
+    psubusb        m0, m4           ; p1-q1
+    por            m3, m0           ; FFABS(p1-q1)
+    mova           m0, [pb_80]
+    pxor           m2, m0
+    pxor           m4, m0
+    psubsb         m2, m4           ; m2=p1-q1 (signed) backup for below
+    pand           m3, [pb_FE]
+    psrlq          m3, 1            ; m3=FFABS(p1-q1)/2, this can be used signed
+    paddusb        m3, m1
+    psubusb        m3, m7
+    pxor           m1, m1
+    pcmpeqb        m3, m1           ; abs(p0-q0)*2+abs(p1-q1)/2<=flim mask(0xff/0x0)
+
+    ; filter_common (use m2/p1-q1, m4=q0, m6=p0, m5/q0-p0 and m3/mask)
+    mova           m4, m5
+    pxor           m5, m0
+    pxor           m0, m6
+    psubsb         m5, m0           ; q0-p0 (signed)
+    paddsb         m2, m5
+    paddsb         m2, m5
+    paddsb         m2, m5           ; a=(p1-q1) + 3*(q0-p0)
+    pand           m2, m3           ; apply filter mask (m3)
+
+    mova           m3, [pb_F8]
+    mova           m1, m2
+    paddsb         m2, [pb_4]       ; f1<<3=a+4
+    paddsb         m1, [pb_3]       ; f2<<3=a+3
+    pand           m2, m3
+    pand           m1, m3           ; cache f2<<3
+
+    pxor           m0, m0
+    pxor           m3, m3
+    pcmpgtb        m0, m2           ; which values are <0?
+    psubb          m3, m2           ; -f1<<3
+    psrlq          m2, 3            ; +f1
+    psrlq          m3, 3            ; -f1
+    pand           m3, m0
+    pandn          m0, m2
+    psubusb        m4, m0
+    paddusb        m4, m3           ; q0-f1
+
+    pxor           m0, m0
+    pxor           m3, m3
+    pcmpgtb        m0, m1           ; which values are <0?
+    psubb          m3, m1           ; -f2<<3
+    psrlq          m1, 3            ; +f2
+    psrlq          m3, 3            ; -f2
+    pand           m3, m0
+    pandn          m0, m1
+    paddusb        m6, m0
+    psubusb        m6, m3           ; p0+f2
+
+    ; store
+%ifidn %1, v
+    mova      [dst1q], m4
+    mova [dst1q+mstrideq], m6
+%else ; h
+    inc        dst1q
+    SBUTTERFLY    bw, 6, 4, 0
+
+%if mmsize == 16 ; sse2
+%if cpuflag(sse4)
+    inc         dst2q
+%endif
+    WRITE_8W       m6, dst2q, dst1q, mstrideq, strideq
+    lea         dst2q, [dst3q+mstrideq+1]
+%if cpuflag(sse4)
+    inc         dst3q
+%endif
+    WRITE_8W       m4, dst3q, dst2q, mstrideq, strideq
+%else ; mmx/mmxext
+    WRITE_2x4W     m6, m4, dst2q, dst1q, mstrideq, strideq
+%endif
+%endif
+
+%if mmsize == 8 ; mmx/mmxext
+    ; next 8 pixels
+%ifidn %1, v
+    add         dst1q, 8            ; advance 8 cols = pixels
+%else ; h
+    lea         dst1q, [dst1q+strideq*8-1]  ; advance 8 rows = lines
+%endif
+    dec         cntrq
+    jg .next8px
+    REP_RET
+%else ; sse2
+    RET
+%endif
+%endmacro
+
+%if ARCH_X86_32
+INIT_MMX mmx
+SIMPLE_LOOPFILTER v, 4
+SIMPLE_LOOPFILTER h, 5
+INIT_MMX mmxext
+SIMPLE_LOOPFILTER v, 4
+SIMPLE_LOOPFILTER h, 5
+%endif
+
+INIT_XMM sse2
+SIMPLE_LOOPFILTER v, 3
+SIMPLE_LOOPFILTER h, 5
+INIT_XMM ssse3
+SIMPLE_LOOPFILTER v, 3
+SIMPLE_LOOPFILTER h, 5
+INIT_XMM sse4
+SIMPLE_LOOPFILTER h, 5
+
+;-----------------------------------------------------------------------------
+; void vp8_h/v_loop_filter<size>_inner_<opt>(uint8_t *dst, [uint8_t *v,] int stride,
+;                                            int flimE, int flimI, int hev_thr);
+;-----------------------------------------------------------------------------
+
+%macro INNER_LOOPFILTER 2
+%define stack_size 0
+%ifndef m8   ; stack layout: [0]=E, [1]=I, [2]=hev_thr
+%ifidn %1, v ;               [3]=hev() result
+%define stack_size mmsize * -4
+%else ; h    ; extra storage space for transposes
+%define stack_size mmsize * -5
+%endif
+%endif
+
+%if %2 == 8 ; chroma
+cglobal vp8_%1_loop_filter8uv_inner, 6, 6, 13, stack_size, dst, dst8, stride, flimE, flimI, hevthr
+%else ; luma
+cglobal vp8_%1_loop_filter16y_inner, 5, 5, 13, stack_size, dst, stride, flimE, flimI, hevthr
+%endif
+
+%if cpuflag(ssse3)
+    pxor             m7, m7
+%endif
+
+%ifndef m8
+    ; splat function arguments
+    SPLATB_REG       m0, flimEq, m7   ; E
+    SPLATB_REG       m1, flimIq, m7   ; I
+    SPLATB_REG       m2, hevthrq, m7  ; hev_thresh
+
+%define m_flimE    [rsp]
+%define m_flimI    [rsp+mmsize]
+%define m_hevthr   [rsp+mmsize*2]
+%define m_maskres  [rsp+mmsize*3]
+%define m_p0backup [rsp+mmsize*3]
+%define m_q0backup [rsp+mmsize*4]
+
+    mova        m_flimE, m0
+    mova        m_flimI, m1
+    mova       m_hevthr, m2
+%else
+%define m_flimE    m9
+%define m_flimI    m10
+%define m_hevthr   m11
+%define m_maskres  m12
+%define m_p0backup m12
+%define m_q0backup m8
+
+    ; splat function arguments
+    SPLATB_REG  m_flimE, flimEq, m7   ; E
+    SPLATB_REG  m_flimI, flimIq, m7   ; I
+    SPLATB_REG m_hevthr, hevthrq, m7  ; hev_thresh
+%endif
+
+%if %2 == 8 ; chroma
+    DEFINE_ARGS dst1, dst8, mstride, stride, dst2
+%elif mmsize == 8
+    DEFINE_ARGS dst1, mstride, stride, dst2, cntr
+    mov           cntrq, 2
+%else
+    DEFINE_ARGS dst1, mstride, stride, dst2, dst8
+%endif
+    mov         strideq, mstrideq
+    neg        mstrideq
+%ifidn %1, h
+    lea           dst1q, [dst1q+strideq*4-4]
+%if %2 == 8 ; chroma
+    lea           dst8q, [dst8q+strideq*4-4]
+%endif
+%endif
+
+%if mmsize == 8
+.next8px:
+%endif
+    ; read
+    lea           dst2q, [dst1q+strideq]
+%ifidn %1, v
+%if %2 == 8 && mmsize == 16
+%define movrow movh
+%else
+%define movrow mova
+%endif
+    movrow           m0, [dst1q+mstrideq*4] ; p3
+    movrow           m1, [dst2q+mstrideq*4] ; p2
+    movrow           m2, [dst1q+mstrideq*2] ; p1
+    movrow           m5, [dst2q]            ; q1
+    movrow           m6, [dst2q+ strideq*1] ; q2
+    movrow           m7, [dst2q+ strideq*2] ; q3
+%if mmsize == 16 && %2 == 8
+    movhps           m0, [dst8q+mstrideq*4]
+    movhps           m2, [dst8q+mstrideq*2]
+    add           dst8q, strideq
+    movhps           m1, [dst8q+mstrideq*4]
+    movhps           m5, [dst8q]
+    movhps           m6, [dst8q+ strideq  ]
+    movhps           m7, [dst8q+ strideq*2]
+    add           dst8q, mstrideq
+%endif
+%elif mmsize == 8 ; mmx/mmxext (h)
+    ; read 8 rows of 8px each
+    movu             m0, [dst1q+mstrideq*4]
+    movu             m1, [dst2q+mstrideq*4]
+    movu             m2, [dst1q+mstrideq*2]
+    movu             m3, [dst1q+mstrideq  ]
+    movu             m4, [dst1q]
+    movu             m5, [dst2q]
+    movu             m6, [dst2q+ strideq  ]
+
+    ; 8x8 transpose
+    TRANSPOSE4x4B     0, 1, 2, 3, 7
+    mova     m_q0backup, m1
+    movu             m7, [dst2q+ strideq*2]
+    TRANSPOSE4x4B     4, 5, 6, 7, 1
+    SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
+    SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
+    SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
+    mova             m1, m_q0backup
+    mova     m_q0backup, m2          ; store q0
+    SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
+    mova     m_p0backup, m5          ; store p0
+    SWAP              1, 4
+    SWAP              2, 4
+    SWAP              6, 3
+    SWAP              5, 3
+%else ; sse2 (h)
+%if %2 == 16
+    lea           dst8q, [dst1q+ strideq*8]
+%endif
+
+    ; read 16 rows of 8px each, interleave
+    movh             m0, [dst1q+mstrideq*4]
+    movh             m1, [dst8q+mstrideq*4]
+    movh             m2, [dst1q+mstrideq*2]
+    movh             m5, [dst8q+mstrideq*2]
+    movh             m3, [dst1q+mstrideq  ]
+    movh             m6, [dst8q+mstrideq  ]
+    movh             m4, [dst1q]
+    movh             m7, [dst8q]
+    punpcklbw        m0, m1          ; A/I
+    punpcklbw        m2, m5          ; C/K
+    punpcklbw        m3, m6          ; D/L
+    punpcklbw        m4, m7          ; E/M
+
+    add           dst8q, strideq
+    movh             m1, [dst2q+mstrideq*4]
+    movh             m6, [dst8q+mstrideq*4]
+    movh             m5, [dst2q]
+    movh             m7, [dst8q]
+    punpcklbw        m1, m6          ; B/J
+    punpcklbw        m5, m7          ; F/N
+    movh             m6, [dst2q+ strideq  ]
+    movh             m7, [dst8q+ strideq  ]
+    punpcklbw        m6, m7          ; G/O
+
+    ; 8x16 transpose
+    TRANSPOSE4x4B     0, 1, 2, 3, 7
+%ifdef m8
+    SWAP              1, 8
+%else
+    mova     m_q0backup, m1
+%endif
+    movh             m7, [dst2q+ strideq*2]
+    movh             m1, [dst8q+ strideq*2]
+    punpcklbw        m7, m1          ; H/P
+    TRANSPOSE4x4B     4, 5, 6, 7, 1
+    SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
+    SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
+    SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
+%ifdef m8
+    SWAP              1, 8
+    SWAP              2, 8
+%else
+    mova             m1, m_q0backup
+    mova     m_q0backup, m2          ; store q0
+%endif
+    SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
+%ifdef m12
+    SWAP              5, 12
+%else
+    mova     m_p0backup, m5          ; store p0
+%endif
+    SWAP              1, 4
+    SWAP              2, 4
+    SWAP              6, 3
+    SWAP              5, 3
+%endif
+
+    ; normal_limit for p3-p2, p2-p1, q3-q2 and q2-q1
+    mova             m4, m1
+    SWAP              4, 1
+    psubusb          m4, m0          ; p2-p3
+    psubusb          m0, m1          ; p3-p2
+    por              m0, m4          ; abs(p3-p2)
+
+    mova             m4, m2
+    SWAP              4, 2
+    psubusb          m4, m1          ; p1-p2
+    psubusb          m1, m2          ; p2-p1
+    por              m1, m4          ; abs(p2-p1)
+
+    mova             m4, m6
+    SWAP              4, 6
+    psubusb          m4, m7          ; q2-q3
+    psubusb          m7, m6          ; q3-q2
+    por              m7, m4          ; abs(q3-q2)
+
+    mova             m4, m5
+    SWAP              4, 5
+    psubusb          m4, m6          ; q1-q2
+    psubusb          m6, m5          ; q2-q1
+    por              m6, m4          ; abs(q2-q1)
+
+%if notcpuflag(mmxext)
+    mova             m4, m_flimI
+    pxor             m3, m3
+    psubusb          m0, m4
+    psubusb          m1, m4
+    psubusb          m7, m4
+    psubusb          m6, m4
+    pcmpeqb          m0, m3          ; abs(p3-p2) <= I
+    pcmpeqb          m1, m3          ; abs(p2-p1) <= I
+    pcmpeqb          m7, m3          ; abs(q3-q2) <= I
+    pcmpeqb          m6, m3          ; abs(q2-q1) <= I
+    pand             m0, m1
+    pand             m7, m6
+    pand             m0, m7
+%else ; mmxext/sse2
+    pmaxub           m0, m1
+    pmaxub           m6, m7
+    pmaxub           m0, m6
+%endif
+
+    ; normal_limit and high_edge_variance for p1-p0, q1-q0
+    SWAP              7, 3           ; now m7 is zero
+%ifidn %1, v
+    movrow           m3, [dst1q+mstrideq  ] ; p0
+%if mmsize == 16 && %2 == 8
+    movhps           m3, [dst8q+mstrideq  ]
+%endif
+%elifdef m12
+    SWAP              3, 12
+%else
+    mova             m3, m_p0backup
+%endif
+
+    mova             m1, m2
+    SWAP              1, 2
+    mova             m6, m3
+    SWAP              3, 6
+    psubusb          m1, m3          ; p1-p0
+    psubusb          m6, m2          ; p0-p1
+    por              m1, m6          ; abs(p1-p0)
+%if notcpuflag(mmxext)
+    mova             m6, m1
+    psubusb          m1, m4
+    psubusb          m6, m_hevthr
+    pcmpeqb          m1, m7          ; abs(p1-p0) <= I
+    pcmpeqb          m6, m7          ; abs(p1-p0) <= hev_thresh
+    pand             m0, m1
+    mova      m_maskres, m6
+%else ; mmxext/sse2
+    pmaxub           m0, m1          ; max_I
+    SWAP              1, 4           ; max_hev_thresh
+%endif
+
+    SWAP              6, 4           ; now m6 is I
+%ifidn %1, v
+    movrow           m4, [dst1q]     ; q0
+%if mmsize == 16 && %2 == 8
+    movhps           m4, [dst8q]
+%endif
+%elifdef m8
+    SWAP              4, 8
+%else
+    mova             m4, m_q0backup
+%endif
+    mova             m1, m4
+    SWAP              1, 4
+    mova             m7, m5
+    SWAP              7, 5
+    psubusb          m1, m5          ; q0-q1
+    psubusb          m7, m4          ; q1-q0
+    por              m1, m7          ; abs(q1-q0)
+%if notcpuflag(mmxext)
+    mova             m7, m1
+    psubusb          m1, m6
+    psubusb          m7, m_hevthr
+    pxor             m6, m6
+    pcmpeqb          m1, m6          ; abs(q1-q0) <= I
+    pcmpeqb          m7, m6          ; abs(q1-q0) <= hev_thresh
+    mova             m6, m_maskres
+    pand             m0, m1          ; abs([pq][321]-[pq][210]) <= I
+    pand             m6, m7
+%else ; mmxext/sse2
+    pxor             m7, m7
+    pmaxub           m0, m1
+    pmaxub           m6, m1
+    psubusb          m0, m_flimI
+    psubusb          m6, m_hevthr
+    pcmpeqb          m0, m7          ; max(abs(..)) <= I
+    pcmpeqb          m6, m7          ; !(max(abs..) > thresh)
+%endif
+%ifdef m12
+    SWAP              6, 12
+%else
+    mova      m_maskres, m6          ; !(abs(p1-p0) > hev_t || abs(q1-q0) > hev_t)
+%endif
+
+    ; simple_limit
+    mova             m1, m3
+    SWAP              1, 3
+    mova             m6, m4          ; keep copies of p0/q0 around for later use
+    SWAP              6, 4
+    psubusb          m1, m4          ; p0-q0
+    psubusb          m6, m3          ; q0-p0
+    por              m1, m6          ; abs(q0-p0)
+    paddusb          m1, m1          ; m1=2*abs(q0-p0)
+
+    mova             m7, m2
+    SWAP              7, 2
+    mova             m6, m5
+    SWAP              6, 5
+    psubusb          m7, m5          ; p1-q1
+    psubusb          m6, m2          ; q1-p1
+    por              m7, m6          ; abs(q1-p1)
+    pxor             m6, m6
+    pand             m7, [pb_FE]
+    psrlq            m7, 1           ; abs(q1-p1)/2
+    paddusb          m7, m1          ; abs(q0-p0)*2+abs(q1-p1)/2
+    psubusb          m7, m_flimE
+    pcmpeqb          m7, m6          ; abs(q0-p0)*2+abs(q1-p1)/2 <= E
+    pand             m0, m7          ; normal_limit result
+
+    ; filter_common; at this point, m2-m5=p1-q1 and m0 is filter_mask
+%ifdef m8 ; x86-64 && sse2
+    mova             m8, [pb_80]
+%define m_pb_80 m8
+%else ; x86-32 or mmx/mmxext
+%define m_pb_80 [pb_80]
+%endif
+    mova             m1, m4
+    mova             m7, m3
+    pxor             m1, m_pb_80
+    pxor             m7, m_pb_80
+    psubsb           m1, m7          ; (signed) q0-p0
+    mova             m6, m2
+    mova             m7, m5
+    pxor             m6, m_pb_80
+    pxor             m7, m_pb_80
+    psubsb           m6, m7          ; (signed) p1-q1
+    mova             m7, m_maskres
+    pandn            m7, m6
+    paddsb           m7, m1
+    paddsb           m7, m1
+    paddsb           m7, m1          ; 3*(q0-p0)+is4tap?(p1-q1)
+
+    pand             m7, m0
+    mova             m1, [pb_F8]
+    mova             m6, m7
+    paddsb           m7, [pb_3]
+    paddsb           m6, [pb_4]
+    pand             m7, m1
+    pand             m6, m1
+
+    pxor             m1, m1
+    pxor             m0, m0
+    pcmpgtb          m1, m7
+    psubb            m0, m7
+    psrlq            m7, 3           ; +f2
+    psrlq            m0, 3           ; -f2
+    pand             m0, m1
+    pandn            m1, m7
+    psubusb          m3, m0
+    paddusb          m3, m1          ; p0+f2
+
+    pxor             m1, m1
+    pxor             m0, m0
+    pcmpgtb          m0, m6
+    psubb            m1, m6
+    psrlq            m6, 3           ; +f1
+    psrlq            m1, 3           ; -f1
+    pand             m1, m0
+    pandn            m0, m6
+    psubusb          m4, m0
+    paddusb          m4, m1          ; q0-f1
+
+%ifdef m12
+    SWAP              6, 12
+%else
+    mova             m6, m_maskres
+%endif
+%if notcpuflag(mmxext)
+    mova             m7, [pb_1]
+%else ; mmxext/sse2
+    pxor             m7, m7
+%endif
+    pand             m0, m6
+    pand             m1, m6
+%if notcpuflag(mmxext)
+    paddusb          m0, m7
+    pand             m1, [pb_FE]
+    pandn            m7, m0
+    psrlq            m1, 1
+    psrlq            m7, 1
+    SWAP              0, 7
+%else ; mmxext/sse2
+    psubusb          m1, [pb_1]
+    pavgb            m0, m7          ; a
+    pavgb            m1, m7          ; -a
+%endif
+    psubusb          m5, m0
+    psubusb          m2, m1
+    paddusb          m5, m1          ; q1-a
+    paddusb          m2, m0          ; p1+a
+
+    ; store
+%ifidn %1, v
+    movrow [dst1q+mstrideq*2], m2
+    movrow [dst1q+mstrideq  ], m3
+    movrow      [dst1q], m4
+    movrow [dst1q+ strideq  ], m5
+%if mmsize == 16 && %2 == 8
+    movhps [dst8q+mstrideq*2], m2
+    movhps [dst8q+mstrideq  ], m3
+    movhps      [dst8q], m4
+    movhps [dst8q+ strideq  ], m5
+%endif
+%else ; h
+    add           dst1q, 2
+    add           dst2q, 2
+
+    ; 4x8/16 transpose
+    TRANSPOSE4x4B     2, 3, 4, 5, 6
+
+%if mmsize == 8 ; mmx/mmxext (h)
+    WRITE_4x2D        2, 3, 4, 5, dst1q, dst2q, mstrideq, strideq
+%else ; sse2 (h)
+    lea           dst8q, [dst8q+mstrideq  +2]
+    WRITE_4x4D        2, 3, 4, 5, dst1q, dst2q, dst8q, mstrideq, strideq, %2
+%endif
+%endif
+
+%if mmsize == 8
+%if %2 == 8 ; chroma
+%ifidn %1, h
+    sub           dst1q, 2
+%endif
+    cmp           dst1q, dst8q
+    mov           dst1q, dst8q
+    jnz .next8px
+%else
+%ifidn %1, h
+    lea           dst1q, [dst1q+ strideq*8-2]
+%else ; v
+    add           dst1q, 8
+%endif
+    dec           cntrq
+    jg .next8px
+%endif
+    REP_RET
+%else ; mmsize == 16
+    RET
+%endif
+%endmacro
+
+%if ARCH_X86_32
+INIT_MMX mmx
+INNER_LOOPFILTER v, 16
+INNER_LOOPFILTER h, 16
+INNER_LOOPFILTER v,  8
+INNER_LOOPFILTER h,  8
+
+INIT_MMX mmxext
+INNER_LOOPFILTER v, 16
+INNER_LOOPFILTER h, 16
+INNER_LOOPFILTER v,  8
+INNER_LOOPFILTER h,  8
+%endif
+
+INIT_XMM sse2
+INNER_LOOPFILTER v, 16
+INNER_LOOPFILTER h, 16
+INNER_LOOPFILTER v,  8
+INNER_LOOPFILTER h,  8
+
+INIT_XMM ssse3
+INNER_LOOPFILTER v, 16
+INNER_LOOPFILTER h, 16
+INNER_LOOPFILTER v,  8
+INNER_LOOPFILTER h,  8
+
+;-----------------------------------------------------------------------------
+; void vp8_h/v_loop_filter<size>_mbedge_<opt>(uint8_t *dst, [uint8_t *v,] int stride,
+;                                            int flimE, int flimI, int hev_thr);
+;-----------------------------------------------------------------------------
+
+%macro MBEDGE_LOOPFILTER 2
+%define stack_size 0
+%ifndef m8       ; stack layout: [0]=E, [1]=I, [2]=hev_thr
+%if mmsize == 16 ;               [3]=hev() result
+                 ;               [4]=filter tmp result
+                 ;               [5]/[6] = p2/q2 backup
+                 ;               [7]=lim_res sign result
+%define stack_size mmsize * -7
+%else ; 8        ; extra storage space for transposes
+%define stack_size mmsize * -8
+%endif
+%endif
+
+%if %2 == 8 ; chroma
+cglobal vp8_%1_loop_filter8uv_mbedge, 6, 6, 15, stack_size, dst1, dst8, stride, flimE, flimI, hevthr
+%else ; luma
+cglobal vp8_%1_loop_filter16y_mbedge, 5, 5, 15, stack_size, dst1, stride, flimE, flimI, hevthr
+%endif
+
+%if cpuflag(ssse3)
+    pxor             m7, m7
+%endif
+
+%ifndef m8
+    ; splat function arguments
+    SPLATB_REG       m0, flimEq, m7   ; E
+    SPLATB_REG       m1, flimIq, m7   ; I
+    SPLATB_REG       m2, hevthrq, m7  ; hev_thresh
+
+%define m_flimE    [rsp]
+%define m_flimI    [rsp+mmsize]
+%define m_hevthr   [rsp+mmsize*2]
+%define m_maskres  [rsp+mmsize*3]
+%define m_limres   [rsp+mmsize*4]
+%define m_p0backup [rsp+mmsize*3]
+%define m_q0backup [rsp+mmsize*4]
+%define m_p2backup [rsp+mmsize*5]
+%define m_q2backup [rsp+mmsize*6]
+%if mmsize == 16
+%define m_limsign  [rsp]
+%else
+%define m_limsign  [rsp+mmsize*7]
+%endif
+
+    mova        m_flimE, m0
+    mova        m_flimI, m1
+    mova       m_hevthr, m2
+%else ; sse2 on x86-64
+%define m_flimE    m9
+%define m_flimI    m10
+%define m_hevthr   m11
+%define m_maskres  m12
+%define m_limres   m8
+%define m_p0backup m12
+%define m_q0backup m8
+%define m_p2backup m13
+%define m_q2backup m14
+%define m_limsign  m9
+
+    ; splat function arguments
+    SPLATB_REG  m_flimE, flimEq, m7   ; E
+    SPLATB_REG  m_flimI, flimIq, m7   ; I
+    SPLATB_REG m_hevthr, hevthrq, m7  ; hev_thresh
+%endif
+
+%if %2 == 8 ; chroma
+    DEFINE_ARGS dst1, dst8, mstride, stride, dst2
+%elif mmsize == 8
+    DEFINE_ARGS dst1, mstride, stride, dst2, cntr
+    mov           cntrq, 2
+%else
+    DEFINE_ARGS dst1, mstride, stride, dst2, dst8
+%endif
+    mov         strideq, mstrideq
+    neg        mstrideq
+%ifidn %1, h
+    lea           dst1q, [dst1q+strideq*4-4]
+%if %2 == 8 ; chroma
+    lea           dst8q, [dst8q+strideq*4-4]
+%endif
+%endif
+
+%if mmsize == 8
+.next8px:
+%endif
+    ; read
+    lea           dst2q, [dst1q+ strideq  ]
+%ifidn %1, v
+%if %2 == 8 && mmsize == 16
+%define movrow movh
+%else
+%define movrow mova
+%endif
+    movrow           m0, [dst1q+mstrideq*4] ; p3
+    movrow           m1, [dst2q+mstrideq*4] ; p2
+    movrow           m2, [dst1q+mstrideq*2] ; p1
+    movrow           m5, [dst2q]            ; q1
+    movrow           m6, [dst2q+ strideq  ] ; q2
+    movrow           m7, [dst2q+ strideq*2] ; q3
+%if mmsize == 16 && %2 == 8
+    movhps           m0, [dst8q+mstrideq*4]
+    movhps           m2, [dst8q+mstrideq*2]
+    add           dst8q, strideq
+    movhps           m1, [dst8q+mstrideq*4]
+    movhps           m5, [dst8q]
+    movhps           m6, [dst8q+ strideq  ]
+    movhps           m7, [dst8q+ strideq*2]
+    add           dst8q, mstrideq
+%endif
+%elif mmsize == 8 ; mmx/mmxext (h)
+    ; read 8 rows of 8px each
+    movu             m0, [dst1q+mstrideq*4]
+    movu             m1, [dst2q+mstrideq*4]
+    movu             m2, [dst1q+mstrideq*2]
+    movu             m3, [dst1q+mstrideq  ]
+    movu             m4, [dst1q]
+    movu             m5, [dst2q]
+    movu             m6, [dst2q+ strideq  ]
+
+    ; 8x8 transpose
+    TRANSPOSE4x4B     0, 1, 2, 3, 7
+    mova     m_q0backup, m1
+    movu             m7, [dst2q+ strideq*2]
+    TRANSPOSE4x4B     4, 5, 6, 7, 1
+    SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
+    SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
+    SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
+    mova             m1, m_q0backup
+    mova     m_q0backup, m2          ; store q0
+    SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
+    mova     m_p0backup, m5          ; store p0
+    SWAP              1, 4
+    SWAP              2, 4
+    SWAP              6, 3
+    SWAP              5, 3
+%else ; sse2 (h)
+%if %2 == 16
+    lea           dst8q, [dst1q+ strideq*8  ]
+%endif
+
+    ; read 16 rows of 8px each, interleave
+    movh             m0, [dst1q+mstrideq*4]
+    movh             m1, [dst8q+mstrideq*4]
+    movh             m2, [dst1q+mstrideq*2]
+    movh             m5, [dst8q+mstrideq*2]
+    movh             m3, [dst1q+mstrideq  ]
+    movh             m6, [dst8q+mstrideq  ]
+    movh             m4, [dst1q]
+    movh             m7, [dst8q]
+    punpcklbw        m0, m1          ; A/I
+    punpcklbw        m2, m5          ; C/K
+    punpcklbw        m3, m6          ; D/L
+    punpcklbw        m4, m7          ; E/M
+
+    add           dst8q, strideq
+    movh             m1, [dst2q+mstrideq*4]
+    movh             m6, [dst8q+mstrideq*4]
+    movh             m5, [dst2q]
+    movh             m7, [dst8q]
+    punpcklbw        m1, m6          ; B/J
+    punpcklbw        m5, m7          ; F/N
+    movh             m6, [dst2q+ strideq  ]
+    movh             m7, [dst8q+ strideq  ]
+    punpcklbw        m6, m7          ; G/O
+
+    ; 8x16 transpose
+    TRANSPOSE4x4B     0, 1, 2, 3, 7
+%ifdef m8
+    SWAP              1, 8
+%else
+    mova     m_q0backup, m1
+%endif
+    movh             m7, [dst2q+ strideq*2]
+    movh             m1, [dst8q+ strideq*2]
+    punpcklbw        m7, m1          ; H/P
+    TRANSPOSE4x4B     4, 5, 6, 7, 1
+    SBUTTERFLY       dq, 0, 4, 1     ; p3/p2
+    SBUTTERFLY       dq, 2, 6, 1     ; q0/q1
+    SBUTTERFLY       dq, 3, 7, 1     ; q2/q3
+%ifdef m8
+    SWAP              1, 8
+    SWAP              2, 8
+%else
+    mova             m1, m_q0backup
+    mova     m_q0backup, m2          ; store q0
+%endif
+    SBUTTERFLY       dq, 1, 5, 2     ; p1/p0
+%ifdef m12
+    SWAP              5, 12
+%else
+    mova     m_p0backup, m5          ; store p0
+%endif
+    SWAP              1, 4
+    SWAP              2, 4
+    SWAP              6, 3
+    SWAP              5, 3
+%endif
+
+    ; normal_limit for p3-p2, p2-p1, q3-q2 and q2-q1
+    mova             m4, m1
+    SWAP              4, 1
+    psubusb          m4, m0          ; p2-p3
+    psubusb          m0, m1          ; p3-p2
+    por              m0, m4          ; abs(p3-p2)
+
+    mova             m4, m2
+    SWAP              4, 2
+    psubusb          m4, m1          ; p1-p2
+    mova     m_p2backup, m1
+    psubusb          m1, m2          ; p2-p1
+    por              m1, m4          ; abs(p2-p1)
+
+    mova             m4, m6
+    SWAP              4, 6
+    psubusb          m4, m7          ; q2-q3
+    psubusb          m7, m6          ; q3-q2
+    por              m7, m4          ; abs(q3-q2)
+
+    mova             m4, m5
+    SWAP              4, 5
+    psubusb          m4, m6          ; q1-q2
+    mova     m_q2backup, m6
+    psubusb          m6, m5          ; q2-q1
+    por              m6, m4          ; abs(q2-q1)
+
+%if notcpuflag(mmxext)
+    mova             m4, m_flimI
+    pxor             m3, m3
+    psubusb          m0, m4
+    psubusb          m1, m4
+    psubusb          m7, m4
+    psubusb          m6, m4
+    pcmpeqb          m0, m3          ; abs(p3-p2) <= I
+    pcmpeqb          m1, m3          ; abs(p2-p1) <= I
+    pcmpeqb          m7, m3          ; abs(q3-q2) <= I
+    pcmpeqb          m6, m3          ; abs(q2-q1) <= I
+    pand             m0, m1
+    pand             m7, m6
+    pand             m0, m7
+%else ; mmxext/sse2
+    pmaxub           m0, m1
+    pmaxub           m6, m7
+    pmaxub           m0, m6
+%endif
+
+    ; normal_limit and high_edge_variance for p1-p0, q1-q0
+    SWAP              7, 3           ; now m7 is zero
+%ifidn %1, v
+    movrow           m3, [dst1q+mstrideq  ] ; p0
+%if mmsize == 16 && %2 == 8
+    movhps           m3, [dst8q+mstrideq  ]
+%endif
+%elifdef m12
+    SWAP              3, 12
+%else
+    mova             m3, m_p0backup
+%endif
+
+    mova             m1, m2
+    SWAP              1, 2
+    mova             m6, m3
+    SWAP              3, 6
+    psubusb          m1, m3          ; p1-p0
+    psubusb          m6, m2          ; p0-p1
+    por              m1, m6          ; abs(p1-p0)
+%if notcpuflag(mmxext)
+    mova             m6, m1
+    psubusb          m1, m4
+    psubusb          m6, m_hevthr
+    pcmpeqb          m1, m7          ; abs(p1-p0) <= I
+    pcmpeqb          m6, m7          ; abs(p1-p0) <= hev_thresh
+    pand             m0, m1
+    mova      m_maskres, m6
+%else ; mmxext/sse2
+    pmaxub           m0, m1          ; max_I
+    SWAP              1, 4           ; max_hev_thresh
+%endif
+
+    SWAP              6, 4           ; now m6 is I
+%ifidn %1, v
+    movrow           m4, [dst1q]     ; q0
+%if mmsize == 16 && %2 == 8
+    movhps           m4, [dst8q]
+%endif
+%elifdef m8
+    SWAP              4, 8
+%else
+    mova             m4, m_q0backup
+%endif
+    mova             m1, m4
+    SWAP              1, 4
+    mova             m7, m5
+    SWAP              7, 5
+    psubusb          m1, m5          ; q0-q1
+    psubusb          m7, m4          ; q1-q0
+    por              m1, m7          ; abs(q1-q0)
+%if notcpuflag(mmxext)
+    mova             m7, m1
+    psubusb          m1, m6
+    psubusb          m7, m_hevthr
+    pxor             m6, m6
+    pcmpeqb          m1, m6          ; abs(q1-q0) <= I
+    pcmpeqb          m7, m6          ; abs(q1-q0) <= hev_thresh
+    mova             m6, m_maskres
+    pand             m0, m1          ; abs([pq][321]-[pq][210]) <= I
+    pand             m6, m7
+%else ; mmxext/sse2
+    pxor             m7, m7
+    pmaxub           m0, m1
+    pmaxub           m6, m1
+    psubusb          m0, m_flimI
+    psubusb          m6, m_hevthr
+    pcmpeqb          m0, m7          ; max(abs(..)) <= I
+    pcmpeqb          m6, m7          ; !(max(abs..) > thresh)
+%endif
+%ifdef m12
+    SWAP              6, 12
+%else
+    mova      m_maskres, m6          ; !(abs(p1-p0) > hev_t || abs(q1-q0) > hev_t)
+%endif
+
+    ; simple_limit
+    mova             m1, m3
+    SWAP              1, 3
+    mova             m6, m4          ; keep copies of p0/q0 around for later use
+    SWAP              6, 4
+    psubusb          m1, m4          ; p0-q0
+    psubusb          m6, m3          ; q0-p0
+    por              m1, m6          ; abs(q0-p0)
+    paddusb          m1, m1          ; m1=2*abs(q0-p0)
+
+    mova             m7, m2
+    SWAP              7, 2
+    mova             m6, m5
+    SWAP              6, 5
+    psubusb          m7, m5          ; p1-q1
+    psubusb          m6, m2          ; q1-p1
+    por              m7, m6          ; abs(q1-p1)
+    pxor             m6, m6
+    pand             m7, [pb_FE]
+    psrlq            m7, 1           ; abs(q1-p1)/2
+    paddusb          m7, m1          ; abs(q0-p0)*2+abs(q1-p1)/2
+    psubusb          m7, m_flimE
+    pcmpeqb          m7, m6          ; abs(q0-p0)*2+abs(q1-p1)/2 <= E
+    pand             m0, m7          ; normal_limit result
+
+    ; filter_common; at this point, m2-m5=p1-q1 and m0 is filter_mask
+%ifdef m8 ; x86-64 && sse2
+    mova             m8, [pb_80]
+%define m_pb_80 m8
+%else ; x86-32 or mmx/mmxext
+%define m_pb_80 [pb_80]
+%endif
+    mova             m1, m4
+    mova             m7, m3
+    pxor             m1, m_pb_80
+    pxor             m7, m_pb_80
+    psubsb           m1, m7          ; (signed) q0-p0
+    mova             m6, m2
+    mova             m7, m5
+    pxor             m6, m_pb_80
+    pxor             m7, m_pb_80
+    psubsb           m6, m7          ; (signed) p1-q1
+    mova             m7, m_maskres
+    paddsb           m6, m1
+    paddsb           m6, m1
+    paddsb           m6, m1
+    pand             m6, m0
+%ifdef m8
+    mova       m_limres, m6          ; 3*(qp-p0)+(p1-q1) masked for filter_mbedge
+    pand       m_limres, m7
+%else
+    mova             m0, m6
+    pand             m0, m7
+    mova       m_limres, m0
+%endif
+    pandn            m7, m6          ; 3*(q0-p0)+(p1-q1) masked for filter_common
+
+    mova             m1, [pb_F8]
+    mova             m6, m7
+    paddsb           m7, [pb_3]
+    paddsb           m6, [pb_4]
+    pand             m7, m1
+    pand             m6, m1
+
+    pxor             m1, m1
+    pxor             m0, m0
+    pcmpgtb          m1, m7
+    psubb            m0, m7
+    psrlq            m7, 3           ; +f2
+    psrlq            m0, 3           ; -f2
+    pand             m0, m1
+    pandn            m1, m7
+    psubusb          m3, m0
+    paddusb          m3, m1          ; p0+f2
+
+    pxor             m1, m1
+    pxor             m0, m0
+    pcmpgtb          m0, m6
+    psubb            m1, m6
+    psrlq            m6, 3           ; +f1
+    psrlq            m1, 3           ; -f1
+    pand             m1, m0
+    pandn            m0, m6
+    psubusb          m4, m0
+    paddusb          m4, m1          ; q0-f1
+
+    ; filter_mbedge (m2-m5 = p1-q1; lim_res carries w)
+%if cpuflag(ssse3)
+    mova             m7, [pb_1]
+%else
+    mova             m7, [pw_63]
+%endif
+%ifdef m8
+    SWAP              1, 8
+%else
+    mova             m1, m_limres
+%endif
+    pxor             m0, m0
+    mova             m6, m1
+    pcmpgtb          m0, m1         ; which are negative
+%if cpuflag(ssse3)
+    punpcklbw        m6, m7         ; interleave with "1" for rounding
+    punpckhbw        m1, m7
+%else
+    punpcklbw        m6, m0         ; signed byte->word
+    punpckhbw        m1, m0
+%endif
+    mova      m_limsign, m0
+%if cpuflag(ssse3)
+    mova             m7, [pb_27_63]
+%ifndef m8
+    mova       m_limres, m1
+%endif
+%ifdef m10
+    SWAP              0, 10         ; don't lose lim_sign copy
+%endif
+    mova             m0, m7
+    pmaddubsw        m7, m6
+    SWAP              6, 7
+    pmaddubsw        m0, m1
+    SWAP              1, 0
+%ifdef m10
+    SWAP              0, 10
+%else
+    mova             m0, m_limsign
+%endif
+%else
+    mova      m_maskres, m6         ; backup for later in filter
+    mova       m_limres, m1
+    pmullw          m6, [pw_27]
+    pmullw          m1, [pw_27]
+    paddw           m6, m7
+    paddw           m1, m7
+%endif
+    psraw           m6, 7
+    psraw           m1, 7
+    packsswb        m6, m1          ; a0
+    pxor            m1, m1
+    psubb           m1, m6
+    pand            m1, m0          ; -a0
+    pandn           m0, m6          ; +a0
+%if cpuflag(ssse3)
+    mova            m6, [pb_18_63]  ; pipelining
+%endif
+    psubusb         m3, m1
+    paddusb         m4, m1
+    paddusb         m3, m0          ; p0+a0
+    psubusb         m4, m0          ; q0-a0
+
+%if cpuflag(ssse3)
+    SWAP             6, 7
+%ifdef m10
+    SWAP             1, 10
+%else
+    mova            m1, m_limres
+%endif
+    mova            m0, m7
+    pmaddubsw       m7, m6
+    SWAP             6, 7
+    pmaddubsw       m0, m1
+    SWAP             1, 0
+%ifdef m10
+    SWAP             0, 10
+%endif
+    mova            m0, m_limsign
+%else
+    mova            m6, m_maskres
+    mova            m1, m_limres
+    pmullw          m6, [pw_18]
+    pmullw          m1, [pw_18]
+    paddw           m6, m7
+    paddw           m1, m7
+%endif
+    mova            m0, m_limsign
+    psraw           m6, 7
+    psraw           m1, 7
+    packsswb        m6, m1          ; a1
+    pxor            m1, m1
+    psubb           m1, m6
+    pand            m1, m0          ; -a1
+    pandn           m0, m6          ; +a1
+%if cpuflag(ssse3)
+    mova            m6, [pb_9_63]
+%endif
+    psubusb         m2, m1
+    paddusb         m5, m1
+    paddusb         m2, m0          ; p1+a1
+    psubusb         m5, m0          ; q1-a1
+
+%if cpuflag(ssse3)
+    SWAP             6, 7
+%ifdef m10
+    SWAP             1, 10
+%else
+    mova            m1, m_limres
+%endif
+    mova            m0, m7
+    pmaddubsw       m7, m6
+    SWAP             6, 7
+    pmaddubsw       m0, m1
+    SWAP             1, 0
+%else
+%ifdef m8
+    SWAP             6, 12
+    SWAP             1, 8
+%else
+    mova            m6, m_maskres
+    mova            m1, m_limres
+%endif
+    pmullw          m6, [pw_9]
+    pmullw          m1, [pw_9]
+    paddw           m6, m7
+    paddw           m1, m7
+%endif
+%ifdef m9
+    SWAP             7, 9
+%else
+    mova            m7, m_limsign
+%endif
+    psraw           m6, 7
+    psraw           m1, 7
+    packsswb        m6, m1          ; a1
+    pxor            m0, m0
+    psubb           m0, m6
+    pand            m0, m7          ; -a1
+    pandn           m7, m6          ; +a1
+%ifdef m8
+    SWAP             1, 13
+    SWAP             6, 14
+%else
+    mova            m1, m_p2backup
+    mova            m6, m_q2backup
+%endif
+    psubusb         m1, m0
+    paddusb         m6, m0
+    paddusb         m1, m7          ; p1+a1
+    psubusb         m6, m7          ; q1-a1
+
+    ; store
+%ifidn %1, v
+    movrow [dst2q+mstrideq*4], m1
+    movrow [dst1q+mstrideq*2], m2
+    movrow [dst1q+mstrideq  ], m3
+    movrow     [dst1q], m4
+    movrow     [dst2q], m5
+    movrow [dst2q+ strideq  ], m6
+%if mmsize == 16 && %2 == 8
+    add           dst8q, mstrideq
+    movhps [dst8q+mstrideq*2], m1
+    movhps [dst8q+mstrideq  ], m2
+    movhps     [dst8q], m3
+    add          dst8q, strideq
+    movhps     [dst8q], m4
+    movhps [dst8q+ strideq  ], m5
+    movhps [dst8q+ strideq*2], m6
+%endif
+%else ; h
+    inc          dst1q
+    inc          dst2q
+
+    ; 4x8/16 transpose
+    TRANSPOSE4x4B    1, 2, 3, 4, 0
+    SBUTTERFLY      bw, 5, 6, 0
+
+%if mmsize == 8 ; mmx/mmxext (h)
+    WRITE_4x2D       1, 2, 3, 4, dst1q, dst2q, mstrideq, strideq
+    add          dst1q, 4
+    WRITE_2x4W      m5, m6, dst2q, dst1q, mstrideq, strideq
+%else ; sse2 (h)
+    lea          dst8q, [dst8q+mstrideq+1]
+    WRITE_4x4D       1, 2, 3, 4, dst1q, dst2q, dst8q, mstrideq, strideq, %2
+    lea          dst1q, [dst2q+mstrideq+4]
+    lea          dst8q, [dst8q+mstrideq+4]
+%if cpuflag(sse4)
+    add          dst2q, 4
+%endif
+    WRITE_8W        m5, dst2q, dst1q,  mstrideq, strideq
+%if cpuflag(sse4)
+    lea          dst2q, [dst8q+ strideq  ]
+%endif
+    WRITE_8W        m6, dst2q, dst8q, mstrideq, strideq
+%endif
+%endif
+
+%if mmsize == 8
+%if %2 == 8 ; chroma
+%ifidn %1, h
+    sub          dst1q, 5
+%endif
+    cmp          dst1q, dst8q
+    mov          dst1q, dst8q
+    jnz .next8px
+%else
+%ifidn %1, h
+    lea          dst1q, [dst1q+ strideq*8-5]
+%else ; v
+    add          dst1q, 8
+%endif
+    dec          cntrq
+    jg .next8px
+%endif
+    REP_RET
+%else ; mmsize == 16
+    RET
+%endif
+%endmacro
+
+%if ARCH_X86_32
+INIT_MMX mmx
+MBEDGE_LOOPFILTER v, 16
+MBEDGE_LOOPFILTER h, 16
+MBEDGE_LOOPFILTER v,  8
+MBEDGE_LOOPFILTER h,  8
+
+INIT_MMX mmxext
+MBEDGE_LOOPFILTER v, 16
+MBEDGE_LOOPFILTER h, 16
+MBEDGE_LOOPFILTER v,  8
+MBEDGE_LOOPFILTER h,  8
+%endif
+
+INIT_XMM sse2
+MBEDGE_LOOPFILTER v, 16
+MBEDGE_LOOPFILTER h, 16
+MBEDGE_LOOPFILTER v,  8
+MBEDGE_LOOPFILTER h,  8
+
+INIT_XMM ssse3
+MBEDGE_LOOPFILTER v, 16
+MBEDGE_LOOPFILTER h, 16
+MBEDGE_LOOPFILTER v,  8
+MBEDGE_LOOPFILTER h,  8
+
+INIT_XMM sse4
+MBEDGE_LOOPFILTER h, 16
+MBEDGE_LOOPFILTER h,  8