Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 482 insertions, 0 deletions

diff --git a/media/libjpeg/simd/x86_64/jidctflt-sse2.asm b/media/libjpeg/simd/x86_64/jidctflt-sse2.asm
new file mode 100644
index 0000000000..60bf961896
--- /dev/null
+++ b/media/libjpeg/simd/x86_64/jidctflt-sse2.asm
@@ -0,0 +1,482 @@
+;
+; jidctflt.asm - floating-point IDCT (64-bit SSE & SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+; Copyright (C) 2009, 2016, D. R. Commander.
+; Copyright (C) 2018, Matthias Räncker.
+;
+; Based on the x86 SIMD extension for IJG JPEG library
+; Copyright (C) 1999-2006, MIYASAKA Masaru.
+; For conditions of distribution and use, see copyright notice in jsimdext.inc
+;
+; This file should be assembled with NASM (Netwide Assembler),
+; can *not* be assembled with Microsoft's MASM or any compatible
+; assembler (including Borland's Turbo Assembler).
+; NASM is available from http://nasm.sourceforge.net/ or
+; http://sourceforge.net/project/showfiles.php?group_id=6208
+;
+; This file contains a floating-point implementation of the inverse DCT
+; (Discrete Cosine Transform). The following code is based directly on
+; the IJG's original jidctflt.c; see the jidctflt.c for more details.
+
+%include "jsimdext.inc"
+%include "jdct.inc"
+
+; --------------------------------------------------------------------------
+
+%macro unpcklps2 2  ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(0 1 4 5)
+    shufps      %1, %2, 0x44
+%endmacro
+
+%macro unpckhps2 2  ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(2 3 6 7)
+    shufps      %1, %2, 0xEE
+%endmacro
+
+; --------------------------------------------------------------------------
+    SECTION     SEG_CONST
+
+    alignz      32
+    GLOBAL_DATA(jconst_idct_float_sse2)
+
+EXTN(jconst_idct_float_sse2):
+
+PD_1_414        times 4  dd  1.414213562373095048801689
+PD_1_847        times 4  dd  1.847759065022573512256366
+PD_1_082        times 4  dd  1.082392200292393968799446
+PD_M2_613       times 4  dd -2.613125929752753055713286
+PD_RNDINT_MAGIC times 4  dd  100663296.0  ; (float)(0x00C00000 << 3)
+PB_CENTERJSAMP  times 16 db  CENTERJSAMPLE
+
+    alignz      32
+
+; --------------------------------------------------------------------------
+    SECTION     SEG_TEXT
+    BITS        64
+;
+; Perform dequantization and inverse DCT on one block of coefficients.
+;
+; GLOBAL(void)
+; jsimd_idct_float_sse2(void *dct_table, JCOEFPTR coef_block,
+;                       JSAMPARRAY output_buf, JDIMENSION output_col)
+;
+
+; r10 = void *dct_table
+; r11 = JCOEFPTR coef_block
+; r12 = JSAMPARRAY output_buf
+; r13d = JDIMENSION output_col
+
+%define original_rbp  rbp + 0
+%define wk(i)         rbp - (WK_NUM - (i)) * SIZEOF_XMMWORD
+                                        ; xmmword wk[WK_NUM]
+%define WK_NUM        2
+%define workspace     wk(0) - DCTSIZE2 * SIZEOF_FAST_FLOAT
+                                        ; FAST_FLOAT workspace[DCTSIZE2]
+
+    align       32
+    GLOBAL_FUNCTION(jsimd_idct_float_sse2)
+
+EXTN(jsimd_idct_float_sse2):
+    push        rbp
+    mov         rax, rsp                     ; rax = original rbp
+    sub         rsp, byte 4
+    and         rsp, byte (-SIZEOF_XMMWORD)  ; align to 128 bits
+    mov         [rsp], rax
+    mov         rbp, rsp                     ; rbp = aligned rbp
+    lea         rsp, [workspace]
+    collect_args 4
+    push        rbx
+
+    ; ---- Pass 1: process columns from input, store into work array.
+
+    mov         rdx, r10                ; quantptr
+    mov         rsi, r11                ; inptr
+    lea         rdi, [workspace]        ; FAST_FLOAT *wsptr
+    mov         rcx, DCTSIZE/4          ; ctr
+.columnloop:
+%ifndef NO_ZERO_COLUMN_TEST_FLOAT_SSE
+    mov         eax, dword [DWBLOCK(1,0,rsi,SIZEOF_JCOEF)]
+    or          eax, dword [DWBLOCK(2,0,rsi,SIZEOF_JCOEF)]
+    jnz         near .columnDCT
+
+    movq        xmm1, XMM_MMWORD [MMBLOCK(1,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm2, XMM_MMWORD [MMBLOCK(2,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm3, XMM_MMWORD [MMBLOCK(3,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm4, XMM_MMWORD [MMBLOCK(4,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm5, XMM_MMWORD [MMBLOCK(5,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm6, XMM_MMWORD [MMBLOCK(6,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm7, XMM_MMWORD [MMBLOCK(7,0,rsi,SIZEOF_JCOEF)]
+    por         xmm1, xmm2
+    por         xmm3, xmm4
+    por         xmm5, xmm6
+    por         xmm1, xmm3
+    por         xmm5, xmm7
+    por         xmm1, xmm5
+    packsswb    xmm1, xmm1
+    movd        eax, xmm1
+    test        rax, rax
+    jnz         short .columnDCT
+
+    ; -- AC terms all zero
+
+    movq        xmm0, XMM_MMWORD [MMBLOCK(0,0,rsi,SIZEOF_JCOEF)]
+
+    punpcklwd   xmm0, xmm0                  ; xmm0=(00 00 01 01 02 02 03 03)
+    psrad       xmm0, (DWORD_BIT-WORD_BIT)  ; xmm0=in0=(00 01 02 03)
+    cvtdq2ps    xmm0, xmm0                  ; xmm0=in0=(00 01 02 03)
+
+    mulps       xmm0, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+
+    movaps      xmm1, xmm0
+    movaps      xmm2, xmm0
+    movaps      xmm3, xmm0
+
+    shufps      xmm0, xmm0, 0x00        ; xmm0=(00 00 00 00)
+    shufps      xmm1, xmm1, 0x55        ; xmm1=(01 01 01 01)
+    shufps      xmm2, xmm2, 0xAA        ; xmm2=(02 02 02 02)
+    shufps      xmm3, xmm3, 0xFF        ; xmm3=(03 03 03 03)
+
+    movaps      XMMWORD [XMMBLOCK(0,0,rdi,SIZEOF_FAST_FLOAT)], xmm0
+    movaps      XMMWORD [XMMBLOCK(0,1,rdi,SIZEOF_FAST_FLOAT)], xmm0
+    movaps      XMMWORD [XMMBLOCK(1,0,rdi,SIZEOF_FAST_FLOAT)], xmm1
+    movaps      XMMWORD [XMMBLOCK(1,1,rdi,SIZEOF_FAST_FLOAT)], xmm1
+    movaps      XMMWORD [XMMBLOCK(2,0,rdi,SIZEOF_FAST_FLOAT)], xmm2
+    movaps      XMMWORD [XMMBLOCK(2,1,rdi,SIZEOF_FAST_FLOAT)], xmm2
+    movaps      XMMWORD [XMMBLOCK(3,0,rdi,SIZEOF_FAST_FLOAT)], xmm3
+    movaps      XMMWORD [XMMBLOCK(3,1,rdi,SIZEOF_FAST_FLOAT)], xmm3
+    jmp         near .nextcolumn
+%endif
+.columnDCT:
+
+    ; -- Even part
+
+    movq        xmm0, XMM_MMWORD [MMBLOCK(0,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm1, XMM_MMWORD [MMBLOCK(2,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm2, XMM_MMWORD [MMBLOCK(4,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm3, XMM_MMWORD [MMBLOCK(6,0,rsi,SIZEOF_JCOEF)]
+
+    punpcklwd   xmm0, xmm0                  ; xmm0=(00 00 01 01 02 02 03 03)
+    punpcklwd   xmm1, xmm1                  ; xmm1=(20 20 21 21 22 22 23 23)
+    psrad       xmm0, (DWORD_BIT-WORD_BIT)  ; xmm0=in0=(00 01 02 03)
+    psrad       xmm1, (DWORD_BIT-WORD_BIT)  ; xmm1=in2=(20 21 22 23)
+    cvtdq2ps    xmm0, xmm0                  ; xmm0=in0=(00 01 02 03)
+    cvtdq2ps    xmm1, xmm1                  ; xmm1=in2=(20 21 22 23)
+
+    punpcklwd   xmm2, xmm2                  ; xmm2=(40 40 41 41 42 42 43 43)
+    punpcklwd   xmm3, xmm3                  ; xmm3=(60 60 61 61 62 62 63 63)
+    psrad       xmm2, (DWORD_BIT-WORD_BIT)  ; xmm2=in4=(40 41 42 43)
+    psrad       xmm3, (DWORD_BIT-WORD_BIT)  ; xmm3=in6=(60 61 62 63)
+    cvtdq2ps    xmm2, xmm2                  ; xmm2=in4=(40 41 42 43)
+    cvtdq2ps    xmm3, xmm3                  ; xmm3=in6=(60 61 62 63)
+
+    mulps       xmm0, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+    mulps       xmm1, XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+    mulps       xmm2, XMMWORD [XMMBLOCK(4,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+    mulps       xmm3, XMMWORD [XMMBLOCK(6,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+
+    movaps      xmm4, xmm0
+    movaps      xmm5, xmm1
+    subps       xmm0, xmm2              ; xmm0=tmp11
+    subps       xmm1, xmm3
+    addps       xmm4, xmm2              ; xmm4=tmp10
+    addps       xmm5, xmm3              ; xmm5=tmp13
+
+    mulps       xmm1, [rel PD_1_414]
+    subps       xmm1, xmm5              ; xmm1=tmp12
+
+    movaps      xmm6, xmm4
+    movaps      xmm7, xmm0
+    subps       xmm4, xmm5              ; xmm4=tmp3
+    subps       xmm0, xmm1              ; xmm0=tmp2
+    addps       xmm6, xmm5              ; xmm6=tmp0
+    addps       xmm7, xmm1              ; xmm7=tmp1
+
+    movaps      XMMWORD [wk(1)], xmm4   ; tmp3
+    movaps      XMMWORD [wk(0)], xmm0   ; tmp2
+
+    ; -- Odd part
+
+    movq        xmm2, XMM_MMWORD [MMBLOCK(1,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm3, XMM_MMWORD [MMBLOCK(3,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm5, XMM_MMWORD [MMBLOCK(5,0,rsi,SIZEOF_JCOEF)]
+    movq        xmm1, XMM_MMWORD [MMBLOCK(7,0,rsi,SIZEOF_JCOEF)]
+
+    punpcklwd   xmm2, xmm2                  ; xmm2=(10 10 11 11 12 12 13 13)
+    punpcklwd   xmm3, xmm3                  ; xmm3=(30 30 31 31 32 32 33 33)
+    psrad       xmm2, (DWORD_BIT-WORD_BIT)  ; xmm2=in1=(10 11 12 13)
+    psrad       xmm3, (DWORD_BIT-WORD_BIT)  ; xmm3=in3=(30 31 32 33)
+    cvtdq2ps    xmm2, xmm2                  ; xmm2=in1=(10 11 12 13)
+    cvtdq2ps    xmm3, xmm3                  ; xmm3=in3=(30 31 32 33)
+
+    punpcklwd   xmm5, xmm5                  ; xmm5=(50 50 51 51 52 52 53 53)
+    punpcklwd   xmm1, xmm1                  ; xmm1=(70 70 71 71 72 72 73 73)
+    psrad       xmm5, (DWORD_BIT-WORD_BIT)  ; xmm5=in5=(50 51 52 53)
+    psrad       xmm1, (DWORD_BIT-WORD_BIT)  ; xmm1=in7=(70 71 72 73)
+    cvtdq2ps    xmm5, xmm5                  ; xmm5=in5=(50 51 52 53)
+    cvtdq2ps    xmm1, xmm1                  ; xmm1=in7=(70 71 72 73)
+
+    mulps       xmm2, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+    mulps       xmm3, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+    mulps       xmm5, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+    mulps       xmm1, XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_FLOAT_MULT_TYPE)]
+
+    movaps      xmm4, xmm2
+    movaps      xmm0, xmm5
+    addps       xmm2, xmm1              ; xmm2=z11
+    addps       xmm5, xmm3              ; xmm5=z13
+    subps       xmm4, xmm1              ; xmm4=z12
+    subps       xmm0, xmm3              ; xmm0=z10
+
+    movaps      xmm1, xmm2
+    subps       xmm2, xmm5
+    addps       xmm1, xmm5              ; xmm1=tmp7
+
+    mulps       xmm2, [rel PD_1_414]    ; xmm2=tmp11
+
+    movaps      xmm3, xmm0
+    addps       xmm0, xmm4
+    mulps       xmm0, [rel PD_1_847]    ; xmm0=z5
+    mulps       xmm3, [rel PD_M2_613]   ; xmm3=(z10 * -2.613125930)
+    mulps       xmm4, [rel PD_1_082]    ; xmm4=(z12 * 1.082392200)
+    addps       xmm3, xmm0              ; xmm3=tmp12
+    subps       xmm4, xmm0              ; xmm4=tmp10
+
+    ; -- Final output stage
+
+    subps       xmm3, xmm1              ; xmm3=tmp6
+    movaps      xmm5, xmm6
+    movaps      xmm0, xmm7
+    addps       xmm6, xmm1              ; xmm6=data0=(00 01 02 03)
+    addps       xmm7, xmm3              ; xmm7=data1=(10 11 12 13)
+    subps       xmm5, xmm1              ; xmm5=data7=(70 71 72 73)
+    subps       xmm0, xmm3              ; xmm0=data6=(60 61 62 63)
+    subps       xmm2, xmm3              ; xmm2=tmp5
+
+    movaps      xmm1, xmm6              ; transpose coefficients(phase 1)
+    unpcklps    xmm6, xmm7              ; xmm6=(00 10 01 11)
+    unpckhps    xmm1, xmm7              ; xmm1=(02 12 03 13)
+    movaps      xmm3, xmm0              ; transpose coefficients(phase 1)
+    unpcklps    xmm0, xmm5              ; xmm0=(60 70 61 71)
+    unpckhps    xmm3, xmm5              ; xmm3=(62 72 63 73)
+
+    movaps      xmm7, XMMWORD [wk(0)]   ; xmm7=tmp2
+    movaps      xmm5, XMMWORD [wk(1)]   ; xmm5=tmp3
+
+    movaps      XMMWORD [wk(0)], xmm0   ; wk(0)=(60 70 61 71)
+    movaps      XMMWORD [wk(1)], xmm3   ; wk(1)=(62 72 63 73)
+
+    addps       xmm4, xmm2              ; xmm4=tmp4
+    movaps      xmm0, xmm7
+    movaps      xmm3, xmm5
+    addps       xmm7, xmm2              ; xmm7=data2=(20 21 22 23)
+    addps       xmm5, xmm4              ; xmm5=data4=(40 41 42 43)
+    subps       xmm0, xmm2              ; xmm0=data5=(50 51 52 53)
+    subps       xmm3, xmm4              ; xmm3=data3=(30 31 32 33)
+
+    movaps      xmm2, xmm7              ; transpose coefficients(phase 1)
+    unpcklps    xmm7, xmm3              ; xmm7=(20 30 21 31)
+    unpckhps    xmm2, xmm3              ; xmm2=(22 32 23 33)
+    movaps      xmm4, xmm5              ; transpose coefficients(phase 1)
+    unpcklps    xmm5, xmm0              ; xmm5=(40 50 41 51)
+    unpckhps    xmm4, xmm0              ; xmm4=(42 52 43 53)
+
+    movaps      xmm3, xmm6              ; transpose coefficients(phase 2)
+    unpcklps2   xmm6, xmm7              ; xmm6=(00 10 20 30)
+    unpckhps2   xmm3, xmm7              ; xmm3=(01 11 21 31)
+    movaps      xmm0, xmm1              ; transpose coefficients(phase 2)
+    unpcklps2   xmm1, xmm2              ; xmm1=(02 12 22 32)
+    unpckhps2   xmm0, xmm2              ; xmm0=(03 13 23 33)
+
+    movaps      xmm7, XMMWORD [wk(0)]   ; xmm7=(60 70 61 71)
+    movaps      xmm2, XMMWORD [wk(1)]   ; xmm2=(62 72 63 73)
+
+    movaps      XMMWORD [XMMBLOCK(0,0,rdi,SIZEOF_FAST_FLOAT)], xmm6
+    movaps      XMMWORD [XMMBLOCK(1,0,rdi,SIZEOF_FAST_FLOAT)], xmm3
+    movaps      XMMWORD [XMMBLOCK(2,0,rdi,SIZEOF_FAST_FLOAT)], xmm1
+    movaps      XMMWORD [XMMBLOCK(3,0,rdi,SIZEOF_FAST_FLOAT)], xmm0
+
+    movaps      xmm6, xmm5              ; transpose coefficients(phase 2)
+    unpcklps2   xmm5, xmm7              ; xmm5=(40 50 60 70)
+    unpckhps2   xmm6, xmm7              ; xmm6=(41 51 61 71)
+    movaps      xmm3, xmm4              ; transpose coefficients(phase 2)
+    unpcklps2   xmm4, xmm2              ; xmm4=(42 52 62 72)
+    unpckhps2   xmm3, xmm2              ; xmm3=(43 53 63 73)
+
+    movaps      XMMWORD [XMMBLOCK(0,1,rdi,SIZEOF_FAST_FLOAT)], xmm5
+    movaps      XMMWORD [XMMBLOCK(1,1,rdi,SIZEOF_FAST_FLOAT)], xmm6
+    movaps      XMMWORD [XMMBLOCK(2,1,rdi,SIZEOF_FAST_FLOAT)], xmm4
+    movaps      XMMWORD [XMMBLOCK(3,1,rdi,SIZEOF_FAST_FLOAT)], xmm3
+
+.nextcolumn:
+    add         rsi, byte 4*SIZEOF_JCOEF               ; coef_block
+    add         rdx, byte 4*SIZEOF_FLOAT_MULT_TYPE     ; quantptr
+    add         rdi,      4*DCTSIZE*SIZEOF_FAST_FLOAT  ; wsptr
+    dec         rcx                                    ; ctr
+    jnz         near .columnloop
+
+    ; -- Prefetch the next coefficient block
+
+    prefetchnta [rsi + (DCTSIZE2-8)*SIZEOF_JCOEF + 0*32]
+    prefetchnta [rsi + (DCTSIZE2-8)*SIZEOF_JCOEF + 1*32]
+    prefetchnta [rsi + (DCTSIZE2-8)*SIZEOF_JCOEF + 2*32]
+    prefetchnta [rsi + (DCTSIZE2-8)*SIZEOF_JCOEF + 3*32]
+
+    ; ---- Pass 2: process rows from work array, store into output array.
+
+    mov         rax, [original_rbp]
+    lea         rsi, [workspace]        ; FAST_FLOAT *wsptr
+    mov         rdi, r12                ; (JSAMPROW *)
+    mov         eax, r13d
+    mov         rcx, DCTSIZE/4          ; ctr
+.rowloop:
+
+    ; -- Even part
+
+    movaps      xmm0, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_FAST_FLOAT)]
+    movaps      xmm1, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_FAST_FLOAT)]
+    movaps      xmm2, XMMWORD [XMMBLOCK(4,0,rsi,SIZEOF_FAST_FLOAT)]
+    movaps      xmm3, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_FAST_FLOAT)]
+
+    movaps      xmm4, xmm0
+    movaps      xmm5, xmm1
+    subps       xmm0, xmm2              ; xmm0=tmp11
+    subps       xmm1, xmm3
+    addps       xmm4, xmm2              ; xmm4=tmp10
+    addps       xmm5, xmm3              ; xmm5=tmp13
+
+    mulps       xmm1, [rel PD_1_414]
+    subps       xmm1, xmm5              ; xmm1=tmp12
+
+    movaps      xmm6, xmm4
+    movaps      xmm7, xmm0
+    subps       xmm4, xmm5              ; xmm4=tmp3
+    subps       xmm0, xmm1              ; xmm0=tmp2
+    addps       xmm6, xmm5              ; xmm6=tmp0
+    addps       xmm7, xmm1              ; xmm7=tmp1
+
+    movaps      XMMWORD [wk(1)], xmm4   ; tmp3
+    movaps      XMMWORD [wk(0)], xmm0   ; tmp2
+
+    ; -- Odd part
+
+    movaps      xmm2, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_FAST_FLOAT)]
+    movaps      xmm3, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_FAST_FLOAT)]
+    movaps      xmm5, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_FAST_FLOAT)]
+    movaps      xmm1, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_FAST_FLOAT)]
+
+    movaps      xmm4, xmm2
+    movaps      xmm0, xmm5
+    addps       xmm2, xmm1              ; xmm2=z11
+    addps       xmm5, xmm3              ; xmm5=z13
+    subps       xmm4, xmm1              ; xmm4=z12
+    subps       xmm0, xmm3              ; xmm0=z10
+
+    movaps      xmm1, xmm2
+    subps       xmm2, xmm5
+    addps       xmm1, xmm5              ; xmm1=tmp7
+
+    mulps       xmm2, [rel PD_1_414]    ; xmm2=tmp11
+
+    movaps      xmm3, xmm0
+    addps       xmm0, xmm4
+    mulps       xmm0, [rel PD_1_847]    ; xmm0=z5
+    mulps       xmm3, [rel PD_M2_613]   ; xmm3=(z10 * -2.613125930)
+    mulps       xmm4, [rel PD_1_082]    ; xmm4=(z12 * 1.082392200)
+    addps       xmm3, xmm0              ; xmm3=tmp12
+    subps       xmm4, xmm0              ; xmm4=tmp10
+
+    ; -- Final output stage
+
+    subps       xmm3, xmm1              ; xmm3=tmp6
+    movaps      xmm5, xmm6
+    movaps      xmm0, xmm7
+    addps       xmm6, xmm1              ; xmm6=data0=(00 10 20 30)
+    addps       xmm7, xmm3              ; xmm7=data1=(01 11 21 31)
+    subps       xmm5, xmm1              ; xmm5=data7=(07 17 27 37)
+    subps       xmm0, xmm3              ; xmm0=data6=(06 16 26 36)
+    subps       xmm2, xmm3              ; xmm2=tmp5
+
+    movaps      xmm1, [rel PD_RNDINT_MAGIC]  ; xmm1=[rel PD_RNDINT_MAGIC]
+    pcmpeqd     xmm3, xmm3
+    psrld       xmm3, WORD_BIT          ; xmm3={0xFFFF 0x0000 0xFFFF 0x0000 ..}
+
+    addps       xmm6, xmm1              ; xmm6=roundint(data0/8)=(00 ** 10 ** 20 ** 30 **)
+    addps       xmm7, xmm1              ; xmm7=roundint(data1/8)=(01 ** 11 ** 21 ** 31 **)
+    addps       xmm0, xmm1              ; xmm0=roundint(data6/8)=(06 ** 16 ** 26 ** 36 **)
+    addps       xmm5, xmm1              ; xmm5=roundint(data7/8)=(07 ** 17 ** 27 ** 37 **)
+
+    pand        xmm6, xmm3              ; xmm6=(00 -- 10 -- 20 -- 30 --)
+    pslld       xmm7, WORD_BIT          ; xmm7=(-- 01 -- 11 -- 21 -- 31)
+    pand        xmm0, xmm3              ; xmm0=(06 -- 16 -- 26 -- 36 --)
+    pslld       xmm5, WORD_BIT          ; xmm5=(-- 07 -- 17 -- 27 -- 37)
+    por         xmm6, xmm7              ; xmm6=(00 01 10 11 20 21 30 31)
+    por         xmm0, xmm5              ; xmm0=(06 07 16 17 26 27 36 37)
+
+    movaps      xmm1,  XMMWORD [wk(0)]  ; xmm1=tmp2
+    movaps      xmm3,  XMMWORD [wk(1)]  ; xmm3=tmp3
+
+    addps       xmm4, xmm2              ; xmm4=tmp4
+    movaps      xmm7, xmm1
+    movaps      xmm5, xmm3
+    addps       xmm1, xmm2              ; xmm1=data2=(02 12 22 32)
+    addps       xmm3, xmm4              ; xmm3=data4=(04 14 24 34)
+    subps       xmm7, xmm2              ; xmm7=data5=(05 15 25 35)
+    subps       xmm5, xmm4              ; xmm5=data3=(03 13 23 33)
+
+    movaps      xmm2, [rel PD_RNDINT_MAGIC]  ; xmm2=[rel PD_RNDINT_MAGIC]
+    pcmpeqd     xmm4, xmm4
+    psrld       xmm4, WORD_BIT          ; xmm4={0xFFFF 0x0000 0xFFFF 0x0000 ..}
+
+    addps       xmm3, xmm2              ; xmm3=roundint(data4/8)=(04 ** 14 ** 24 ** 34 **)
+    addps       xmm7, xmm2              ; xmm7=roundint(data5/8)=(05 ** 15 ** 25 ** 35 **)
+    addps       xmm1, xmm2              ; xmm1=roundint(data2/8)=(02 ** 12 ** 22 ** 32 **)
+    addps       xmm5, xmm2              ; xmm5=roundint(data3/8)=(03 ** 13 ** 23 ** 33 **)
+
+    pand        xmm3, xmm4              ; xmm3=(04 -- 14 -- 24 -- 34 --)
+    pslld       xmm7, WORD_BIT          ; xmm7=(-- 05 -- 15 -- 25 -- 35)
+    pand        xmm1, xmm4              ; xmm1=(02 -- 12 -- 22 -- 32 --)
+    pslld       xmm5, WORD_BIT          ; xmm5=(-- 03 -- 13 -- 23 -- 33)
+    por         xmm3, xmm7              ; xmm3=(04 05 14 15 24 25 34 35)
+    por         xmm1, xmm5              ; xmm1=(02 03 12 13 22 23 32 33)
+
+    movdqa      xmm2, [rel PB_CENTERJSAMP]  ; xmm2=[rel PB_CENTERJSAMP]
+
+    packsswb    xmm6, xmm3        ; xmm6=(00 01 10 11 20 21 30 31 04 05 14 15 24 25 34 35)
+    packsswb    xmm1, xmm0        ; xmm1=(02 03 12 13 22 23 32 33 06 07 16 17 26 27 36 37)
+    paddb       xmm6, xmm2
+    paddb       xmm1, xmm2
+
+    movdqa      xmm4, xmm6        ; transpose coefficients(phase 2)
+    punpcklwd   xmm6, xmm1        ; xmm6=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
+    punpckhwd   xmm4, xmm1        ; xmm4=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
+
+    movdqa      xmm7, xmm6        ; transpose coefficients(phase 3)
+    punpckldq   xmm6, xmm4        ; xmm6=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
+    punpckhdq   xmm7, xmm4        ; xmm7=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
+
+    pshufd      xmm5, xmm6, 0x4E  ; xmm5=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
+    pshufd      xmm3, xmm7, 0x4E  ; xmm3=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
+
+    mov         rdxp, JSAMPROW [rdi+0*SIZEOF_JSAMPROW]
+    mov         rbxp, JSAMPROW [rdi+2*SIZEOF_JSAMPROW]
+    movq        XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm6
+    movq        XMM_MMWORD [rbx+rax*SIZEOF_JSAMPLE], xmm7
+    mov         rdxp, JSAMPROW [rdi+1*SIZEOF_JSAMPROW]
+    mov         rbxp, JSAMPROW [rdi+3*SIZEOF_JSAMPROW]
+    movq        XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm5
+    movq        XMM_MMWORD [rbx+rax*SIZEOF_JSAMPLE], xmm3
+
+    add         rsi, byte 4*SIZEOF_FAST_FLOAT  ; wsptr
+    add         rdi, byte 4*SIZEOF_JSAMPROW
+    dec         rcx                            ; ctr
+    jnz         near .rowloop
+
+    pop         rbx
+    uncollect_args 4
+    mov         rsp, rbp                ; rsp <- aligned rbp
+    pop         rsp                     ; rsp <- original rbp
+    pop         rbp
+    ret
+
+; For some reason, the OS X linker does not honor the request to align the
+; segment unless we do this.
+    align       32