Add m-esr52 at 52.6.0

1 files changed, 501 insertions, 0 deletions

diff --git a/media/libjpeg/simd/jidctfst-sse2.asm b/media/libjpeg/simd/jidctfst-sse2.asm
new file mode 100644
index 000000000..f591e55f0
--- /dev/null
+++ b/media/libjpeg/simd/jidctfst-sse2.asm
@@ -0,0 +1,501 @@
+;
+; jidctfst.asm - fast integer IDCT (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; 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 fast, not so accurate integer implementation of
+; the inverse DCT (Discrete Cosine Transform). The following code is
+; based directly on the IJG's original jidctfst.c; see the jidctfst.c
+; for more details.
+;
+; [TAB8]
+
+%include "jsimdext.inc"
+%include "jdct.inc"
+
+; --------------------------------------------------------------------------
+
+%define CONST_BITS      8       ; 14 is also OK.
+%define PASS1_BITS      2
+
+%if IFAST_SCALE_BITS != PASS1_BITS
+%error "'IFAST_SCALE_BITS' must be equal to 'PASS1_BITS'."
+%endif
+
+%if CONST_BITS == 8
+F_1_082 equ     277             ; FIX(1.082392200)
+F_1_414 equ     362             ; FIX(1.414213562)
+F_1_847 equ     473             ; FIX(1.847759065)
+F_2_613 equ     669             ; FIX(2.613125930)
+F_1_613 equ     (F_2_613 - 256) ; FIX(2.613125930) - FIX(1)
+%else
+; NASM cannot do compile-time arithmetic on floating-point constants.
+%define DESCALE(x,n)  (((x)+(1<<((n)-1)))>>(n))
+F_1_082 equ     DESCALE(1162209775,30-CONST_BITS)       ; FIX(1.082392200)
+F_1_414 equ     DESCALE(1518500249,30-CONST_BITS)       ; FIX(1.414213562)
+F_1_847 equ     DESCALE(1984016188,30-CONST_BITS)       ; FIX(1.847759065)
+F_2_613 equ     DESCALE(2805822602,30-CONST_BITS)       ; FIX(2.613125930)
+F_1_613 equ     (F_2_613 - (1 << CONST_BITS))   ; FIX(2.613125930) - FIX(1)
+%endif
+
+; --------------------------------------------------------------------------
+        SECTION SEG_CONST
+
+; PRE_MULTIPLY_SCALE_BITS <= 2 (to avoid overflow)
+; CONST_BITS + CONST_SHIFT + PRE_MULTIPLY_SCALE_BITS == 16 (for pmulhw)
+
+%define PRE_MULTIPLY_SCALE_BITS   2
+%define CONST_SHIFT     (16 - PRE_MULTIPLY_SCALE_BITS - CONST_BITS)
+
+        alignz  16
+        global  EXTN(jconst_idct_ifast_sse2)
+
+EXTN(jconst_idct_ifast_sse2):
+
+PW_F1414        times 8 dw  F_1_414 << CONST_SHIFT
+PW_F1847        times 8 dw  F_1_847 << CONST_SHIFT
+PW_MF1613       times 8 dw -F_1_613 << CONST_SHIFT
+PW_F1082        times 8 dw  F_1_082 << CONST_SHIFT
+PB_CENTERJSAMP  times 16 db CENTERJSAMPLE
+
+        alignz  16
+
+; --------------------------------------------------------------------------
+        SECTION SEG_TEXT
+        BITS    32
+;
+; Perform dequantization and inverse DCT on one block of coefficients.
+;
+; GLOBAL(void)
+; jsimd_idct_ifast_sse2 (void *dct_table, JCOEFPTR coef_block,
+;                       JSAMPARRAY output_buf, JDIMENSION output_col)
+;
+
+%define dct_table(b)    (b)+8           ; jpeg_component_info *compptr
+%define coef_block(b)   (b)+12          ; JCOEFPTR coef_block
+%define output_buf(b)   (b)+16          ; JSAMPARRAY output_buf
+%define output_col(b)   (b)+20          ; JDIMENSION output_col
+
+%define original_ebp    ebp+0
+%define wk(i)           ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM          2
+
+        align   16
+        global  EXTN(jsimd_idct_ifast_sse2)
+
+EXTN(jsimd_idct_ifast_sse2):
+        push    ebp
+        mov     eax,esp                         ; eax = original ebp
+        sub     esp, byte 4
+        and     esp, byte (-SIZEOF_XMMWORD)     ; align to 128 bits
+        mov     [esp],eax
+        mov     ebp,esp                         ; ebp = aligned ebp
+        lea     esp, [wk(0)]
+        pushpic ebx
+;       push    ecx             ; unused
+;       push    edx             ; need not be preserved
+        push    esi
+        push    edi
+
+        get_GOT ebx             ; get GOT address
+
+        ; ---- Pass 1: process columns from input.
+
+;       mov     eax, [original_ebp]
+        mov     edx, POINTER [dct_table(eax)]           ; quantptr
+        mov     esi, JCOEFPTR [coef_block(eax)]         ; inptr
+
+%ifndef NO_ZERO_COLUMN_TEST_IFAST_SSE2
+        mov     eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
+        or      eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
+        jnz     near .columnDCT
+
+        movdqa  xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+        movdqa  xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+        por     xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+        por     xmm1, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
+        por     xmm0, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+        por     xmm1, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+        por     xmm0, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+        por     xmm1,xmm0
+        packsswb xmm1,xmm1
+        packsswb xmm1,xmm1
+        movd    eax,xmm1
+        test    eax,eax
+        jnz     short .columnDCT
+
+        ; -- AC terms all zero
+
+        movdqa  xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+        pmullw  xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+        movdqa    xmm7,xmm0             ; xmm0=in0=(00 01 02 03 04 05 06 07)
+        punpcklwd xmm0,xmm0             ; xmm0=(00 00 01 01 02 02 03 03)
+        punpckhwd xmm7,xmm7             ; xmm7=(04 04 05 05 06 06 07 07)
+
+        pshufd  xmm6,xmm0,0x00          ; xmm6=col0=(00 00 00 00 00 00 00 00)
+        pshufd  xmm2,xmm0,0x55          ; xmm2=col1=(01 01 01 01 01 01 01 01)
+        pshufd  xmm5,xmm0,0xAA          ; xmm5=col2=(02 02 02 02 02 02 02 02)
+        pshufd  xmm0,xmm0,0xFF          ; xmm0=col3=(03 03 03 03 03 03 03 03)
+        pshufd  xmm1,xmm7,0x00          ; xmm1=col4=(04 04 04 04 04 04 04 04)
+        pshufd  xmm4,xmm7,0x55          ; xmm4=col5=(05 05 05 05 05 05 05 05)
+        pshufd  xmm3,xmm7,0xAA          ; xmm3=col6=(06 06 06 06 06 06 06 06)
+        pshufd  xmm7,xmm7,0xFF          ; xmm7=col7=(07 07 07 07 07 07 07 07)
+
+        movdqa  XMMWORD [wk(0)], xmm2   ; wk(0)=col1
+        movdqa  XMMWORD [wk(1)], xmm0   ; wk(1)=col3
+        jmp     near .column_end
+        alignx  16,7
+%endif
+.columnDCT:
+
+        ; -- Even part
+
+        movdqa  xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+        movdqa  xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+        pmullw  xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+        pmullw  xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+        movdqa  xmm2, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
+        movdqa  xmm3, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+        pmullw  xmm2, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+        pmullw  xmm3, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+
+        movdqa  xmm4,xmm0
+        movdqa  xmm5,xmm1
+        psubw   xmm0,xmm2               ; xmm0=tmp11
+        psubw   xmm1,xmm3
+        paddw   xmm4,xmm2               ; xmm4=tmp10
+        paddw   xmm5,xmm3               ; xmm5=tmp13
+
+        psllw   xmm1,PRE_MULTIPLY_SCALE_BITS
+        pmulhw  xmm1,[GOTOFF(ebx,PW_F1414)]
+        psubw   xmm1,xmm5               ; xmm1=tmp12
+
+        movdqa  xmm6,xmm4
+        movdqa  xmm7,xmm0
+        psubw   xmm4,xmm5               ; xmm4=tmp3
+        psubw   xmm0,xmm1               ; xmm0=tmp2
+        paddw   xmm6,xmm5               ; xmm6=tmp0
+        paddw   xmm7,xmm1               ; xmm7=tmp1
+
+        movdqa  XMMWORD [wk(1)], xmm4   ; wk(1)=tmp3
+        movdqa  XMMWORD [wk(0)], xmm0   ; wk(0)=tmp2
+
+        ; -- Odd part
+
+        movdqa  xmm2, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+        movdqa  xmm3, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+        pmullw  xmm2, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+        pmullw  xmm3, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+        movdqa  xmm5, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+        movdqa  xmm1, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+        pmullw  xmm5, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+        pmullw  xmm1, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+
+        movdqa  xmm4,xmm2
+        movdqa  xmm0,xmm5
+        psubw   xmm2,xmm1               ; xmm2=z12
+        psubw   xmm5,xmm3               ; xmm5=z10
+        paddw   xmm4,xmm1               ; xmm4=z11
+        paddw   xmm0,xmm3               ; xmm0=z13
+
+        movdqa  xmm1,xmm5               ; xmm1=z10(unscaled)
+        psllw   xmm2,PRE_MULTIPLY_SCALE_BITS
+        psllw   xmm5,PRE_MULTIPLY_SCALE_BITS
+
+        movdqa  xmm3,xmm4
+        psubw   xmm4,xmm0
+        paddw   xmm3,xmm0               ; xmm3=tmp7
+
+        psllw   xmm4,PRE_MULTIPLY_SCALE_BITS
+        pmulhw  xmm4,[GOTOFF(ebx,PW_F1414)]     ; xmm4=tmp11
+
+        ; To avoid overflow...
+        ;
+        ; (Original)
+        ; tmp12 = -2.613125930 * z10 + z5;
+        ;
+        ; (This implementation)
+        ; tmp12 = (-1.613125930 - 1) * z10 + z5;
+        ;       = -1.613125930 * z10 - z10 + z5;
+
+        movdqa  xmm0,xmm5
+        paddw   xmm5,xmm2
+        pmulhw  xmm5,[GOTOFF(ebx,PW_F1847)]     ; xmm5=z5
+        pmulhw  xmm0,[GOTOFF(ebx,PW_MF1613)]
+        pmulhw  xmm2,[GOTOFF(ebx,PW_F1082)]
+        psubw   xmm0,xmm1
+        psubw   xmm2,xmm5               ; xmm2=tmp10
+        paddw   xmm0,xmm5               ; xmm0=tmp12
+
+        ; -- Final output stage
+
+        psubw   xmm0,xmm3               ; xmm0=tmp6
+        movdqa  xmm1,xmm6
+        movdqa  xmm5,xmm7
+        paddw   xmm6,xmm3               ; xmm6=data0=(00 01 02 03 04 05 06 07)
+        paddw   xmm7,xmm0               ; xmm7=data1=(10 11 12 13 14 15 16 17)
+        psubw   xmm1,xmm3               ; xmm1=data7=(70 71 72 73 74 75 76 77)
+        psubw   xmm5,xmm0               ; xmm5=data6=(60 61 62 63 64 65 66 67)
+        psubw   xmm4,xmm0               ; xmm4=tmp5
+
+        movdqa    xmm3,xmm6             ; transpose coefficients(phase 1)
+        punpcklwd xmm6,xmm7             ; xmm6=(00 10 01 11 02 12 03 13)
+        punpckhwd xmm3,xmm7             ; xmm3=(04 14 05 15 06 16 07 17)
+        movdqa    xmm0,xmm5             ; transpose coefficients(phase 1)
+        punpcklwd xmm5,xmm1             ; xmm5=(60 70 61 71 62 72 63 73)
+        punpckhwd xmm0,xmm1             ; xmm0=(64 74 65 75 66 76 67 77)
+
+        movdqa  xmm7, XMMWORD [wk(0)]   ; xmm7=tmp2
+        movdqa  xmm1, XMMWORD [wk(1)]   ; xmm1=tmp3
+
+        movdqa  XMMWORD [wk(0)], xmm5   ; wk(0)=(60 70 61 71 62 72 63 73)
+        movdqa  XMMWORD [wk(1)], xmm0   ; wk(1)=(64 74 65 75 66 76 67 77)
+
+        paddw   xmm2,xmm4               ; xmm2=tmp4
+        movdqa  xmm5,xmm7
+        movdqa  xmm0,xmm1
+        paddw   xmm7,xmm4               ; xmm7=data2=(20 21 22 23 24 25 26 27)
+        paddw   xmm1,xmm2               ; xmm1=data4=(40 41 42 43 44 45 46 47)
+        psubw   xmm5,xmm4               ; xmm5=data5=(50 51 52 53 54 55 56 57)
+        psubw   xmm0,xmm2               ; xmm0=data3=(30 31 32 33 34 35 36 37)
+
+        movdqa    xmm4,xmm7             ; transpose coefficients(phase 1)
+        punpcklwd xmm7,xmm0             ; xmm7=(20 30 21 31 22 32 23 33)
+        punpckhwd xmm4,xmm0             ; xmm4=(24 34 25 35 26 36 27 37)
+        movdqa    xmm2,xmm1             ; transpose coefficients(phase 1)
+        punpcklwd xmm1,xmm5             ; xmm1=(40 50 41 51 42 52 43 53)
+        punpckhwd xmm2,xmm5             ; xmm2=(44 54 45 55 46 56 47 57)
+
+        movdqa    xmm0,xmm3             ; transpose coefficients(phase 2)
+        punpckldq xmm3,xmm4             ; xmm3=(04 14 24 34 05 15 25 35)
+        punpckhdq xmm0,xmm4             ; xmm0=(06 16 26 36 07 17 27 37)
+        movdqa    xmm5,xmm6             ; transpose coefficients(phase 2)
+        punpckldq xmm6,xmm7             ; xmm6=(00 10 20 30 01 11 21 31)
+        punpckhdq xmm5,xmm7             ; xmm5=(02 12 22 32 03 13 23 33)
+
+        movdqa  xmm4, XMMWORD [wk(0)]   ; xmm4=(60 70 61 71 62 72 63 73)
+        movdqa  xmm7, XMMWORD [wk(1)]   ; xmm7=(64 74 65 75 66 76 67 77)
+
+        movdqa  XMMWORD [wk(0)], xmm3   ; wk(0)=(04 14 24 34 05 15 25 35)
+        movdqa  XMMWORD [wk(1)], xmm0   ; wk(1)=(06 16 26 36 07 17 27 37)
+
+        movdqa    xmm3,xmm1             ; transpose coefficients(phase 2)
+        punpckldq xmm1,xmm4             ; xmm1=(40 50 60 70 41 51 61 71)
+        punpckhdq xmm3,xmm4             ; xmm3=(42 52 62 72 43 53 63 73)
+        movdqa    xmm0,xmm2             ; transpose coefficients(phase 2)
+        punpckldq xmm2,xmm7             ; xmm2=(44 54 64 74 45 55 65 75)
+        punpckhdq xmm0,xmm7             ; xmm0=(46 56 66 76 47 57 67 77)
+
+        movdqa     xmm4,xmm6            ; transpose coefficients(phase 3)
+        punpcklqdq xmm6,xmm1            ; xmm6=col0=(00 10 20 30 40 50 60 70)
+        punpckhqdq xmm4,xmm1            ; xmm4=col1=(01 11 21 31 41 51 61 71)
+        movdqa     xmm7,xmm5            ; transpose coefficients(phase 3)
+        punpcklqdq xmm5,xmm3            ; xmm5=col2=(02 12 22 32 42 52 62 72)
+        punpckhqdq xmm7,xmm3            ; xmm7=col3=(03 13 23 33 43 53 63 73)
+
+        movdqa  xmm1, XMMWORD [wk(0)]   ; xmm1=(04 14 24 34 05 15 25 35)
+        movdqa  xmm3, XMMWORD [wk(1)]   ; xmm3=(06 16 26 36 07 17 27 37)
+
+        movdqa  XMMWORD [wk(0)], xmm4   ; wk(0)=col1
+        movdqa  XMMWORD [wk(1)], xmm7   ; wk(1)=col3
+
+        movdqa     xmm4,xmm1            ; transpose coefficients(phase 3)
+        punpcklqdq xmm1,xmm2            ; xmm1=col4=(04 14 24 34 44 54 64 74)
+        punpckhqdq xmm4,xmm2            ; xmm4=col5=(05 15 25 35 45 55 65 75)
+        movdqa     xmm7,xmm3            ; transpose coefficients(phase 3)
+        punpcklqdq xmm3,xmm0            ; xmm3=col6=(06 16 26 36 46 56 66 76)
+        punpckhqdq xmm7,xmm0            ; xmm7=col7=(07 17 27 37 47 57 67 77)
+.column_end:
+
+        ; -- Prefetch the next coefficient block
+
+        prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32]
+        prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32]
+        prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32]
+        prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32]
+
+        ; ---- Pass 2: process rows from work array, store into output array.
+
+        mov     eax, [original_ebp]
+        mov     edi, JSAMPARRAY [output_buf(eax)]       ; (JSAMPROW *)
+        mov     eax, JDIMENSION [output_col(eax)]
+
+        ; -- Even part
+
+        ; xmm6=col0, xmm5=col2, xmm1=col4, xmm3=col6
+
+        movdqa  xmm2,xmm6
+        movdqa  xmm0,xmm5
+        psubw   xmm6,xmm1               ; xmm6=tmp11
+        psubw   xmm5,xmm3
+        paddw   xmm2,xmm1               ; xmm2=tmp10
+        paddw   xmm0,xmm3               ; xmm0=tmp13
+
+        psllw   xmm5,PRE_MULTIPLY_SCALE_BITS
+        pmulhw  xmm5,[GOTOFF(ebx,PW_F1414)]
+        psubw   xmm5,xmm0               ; xmm5=tmp12
+
+        movdqa  xmm1,xmm2
+        movdqa  xmm3,xmm6
+        psubw   xmm2,xmm0               ; xmm2=tmp3
+        psubw   xmm6,xmm5               ; xmm6=tmp2
+        paddw   xmm1,xmm0               ; xmm1=tmp0
+        paddw   xmm3,xmm5               ; xmm3=tmp1
+
+        movdqa  xmm0, XMMWORD [wk(0)]   ; xmm0=col1
+        movdqa  xmm5, XMMWORD [wk(1)]   ; xmm5=col3
+
+        movdqa  XMMWORD [wk(0)], xmm2   ; wk(0)=tmp3
+        movdqa  XMMWORD [wk(1)], xmm6   ; wk(1)=tmp2
+
+        ; -- Odd part
+
+        ; xmm0=col1, xmm5=col3, xmm4=col5, xmm7=col7
+
+        movdqa  xmm2,xmm0
+        movdqa  xmm6,xmm4
+        psubw   xmm0,xmm7               ; xmm0=z12
+        psubw   xmm4,xmm5               ; xmm4=z10
+        paddw   xmm2,xmm7               ; xmm2=z11
+        paddw   xmm6,xmm5               ; xmm6=z13
+
+        movdqa  xmm7,xmm4               ; xmm7=z10(unscaled)
+        psllw   xmm0,PRE_MULTIPLY_SCALE_BITS
+        psllw   xmm4,PRE_MULTIPLY_SCALE_BITS
+
+        movdqa  xmm5,xmm2
+        psubw   xmm2,xmm6
+        paddw   xmm5,xmm6               ; xmm5=tmp7
+
+        psllw   xmm2,PRE_MULTIPLY_SCALE_BITS
+        pmulhw  xmm2,[GOTOFF(ebx,PW_F1414)]     ; xmm2=tmp11
+
+        ; To avoid overflow...
+        ;
+        ; (Original)
+        ; tmp12 = -2.613125930 * z10 + z5;
+        ;
+        ; (This implementation)
+        ; tmp12 = (-1.613125930 - 1) * z10 + z5;
+        ;       = -1.613125930 * z10 - z10 + z5;
+
+        movdqa  xmm6,xmm4
+        paddw   xmm4,xmm0
+        pmulhw  xmm4,[GOTOFF(ebx,PW_F1847)]     ; xmm4=z5
+        pmulhw  xmm6,[GOTOFF(ebx,PW_MF1613)]
+        pmulhw  xmm0,[GOTOFF(ebx,PW_F1082)]
+        psubw   xmm6,xmm7
+        psubw   xmm0,xmm4               ; xmm0=tmp10
+        paddw   xmm6,xmm4               ; xmm6=tmp12
+
+        ; -- Final output stage
+
+        psubw   xmm6,xmm5               ; xmm6=tmp6
+        movdqa  xmm7,xmm1
+        movdqa  xmm4,xmm3
+        paddw   xmm1,xmm5               ; xmm1=data0=(00 10 20 30 40 50 60 70)
+        paddw   xmm3,xmm6               ; xmm3=data1=(01 11 21 31 41 51 61 71)
+        psraw   xmm1,(PASS1_BITS+3)     ; descale
+        psraw   xmm3,(PASS1_BITS+3)     ; descale
+        psubw   xmm7,xmm5               ; xmm7=data7=(07 17 27 37 47 57 67 77)
+        psubw   xmm4,xmm6               ; xmm4=data6=(06 16 26 36 46 56 66 76)
+        psraw   xmm7,(PASS1_BITS+3)     ; descale
+        psraw   xmm4,(PASS1_BITS+3)     ; descale
+        psubw   xmm2,xmm6               ; xmm2=tmp5
+
+        packsswb  xmm1,xmm4     ; xmm1=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
+        packsswb  xmm3,xmm7     ; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
+
+        movdqa  xmm5, XMMWORD [wk(1)]   ; xmm5=tmp2
+        movdqa  xmm6, XMMWORD [wk(0)]   ; xmm6=tmp3
+
+        paddw   xmm0,xmm2               ; xmm0=tmp4
+        movdqa  xmm4,xmm5
+        movdqa  xmm7,xmm6
+        paddw   xmm5,xmm2               ; xmm5=data2=(02 12 22 32 42 52 62 72)
+        paddw   xmm6,xmm0               ; xmm6=data4=(04 14 24 34 44 54 64 74)
+        psraw   xmm5,(PASS1_BITS+3)     ; descale
+        psraw   xmm6,(PASS1_BITS+3)     ; descale
+        psubw   xmm4,xmm2               ; xmm4=data5=(05 15 25 35 45 55 65 75)
+        psubw   xmm7,xmm0               ; xmm7=data3=(03 13 23 33 43 53 63 73)
+        psraw   xmm4,(PASS1_BITS+3)     ; descale
+        psraw   xmm7,(PASS1_BITS+3)     ; descale
+
+        movdqa    xmm2,[GOTOFF(ebx,PB_CENTERJSAMP)]     ; xmm2=[PB_CENTERJSAMP]
+
+        packsswb  xmm5,xmm6     ; xmm5=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74)
+        packsswb  xmm7,xmm4     ; xmm7=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75)
+
+        paddb     xmm1,xmm2
+        paddb     xmm3,xmm2
+        paddb     xmm5,xmm2
+        paddb     xmm7,xmm2
+
+        movdqa    xmm0,xmm1     ; transpose coefficients(phase 1)
+        punpcklbw xmm1,xmm3     ; xmm1=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71)
+        punpckhbw xmm0,xmm3     ; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77)
+        movdqa    xmm6,xmm5     ; transpose coefficients(phase 1)
+        punpcklbw xmm5,xmm7     ; xmm5=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73)
+        punpckhbw xmm6,xmm7     ; xmm6=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75)
+
+        movdqa    xmm4,xmm1     ; transpose coefficients(phase 2)
+        punpcklwd xmm1,xmm5     ; xmm1=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
+        punpckhwd xmm4,xmm5     ; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73)
+        movdqa    xmm2,xmm6     ; transpose coefficients(phase 2)
+        punpcklwd xmm6,xmm0     ; xmm6=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
+        punpckhwd xmm2,xmm0     ; xmm2=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77)
+
+        movdqa    xmm3,xmm1     ; transpose coefficients(phase 3)
+        punpckldq xmm1,xmm6     ; xmm1=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
+        punpckhdq xmm3,xmm6     ; xmm3=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
+        movdqa    xmm7,xmm4     ; transpose coefficients(phase 3)
+        punpckldq xmm4,xmm2     ; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57)
+        punpckhdq xmm7,xmm2     ; xmm7=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77)
+
+        pshufd  xmm5,xmm1,0x4E  ; xmm5=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
+        pshufd  xmm0,xmm3,0x4E  ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
+        pshufd  xmm6,xmm4,0x4E  ; xmm6=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47)
+        pshufd  xmm2,xmm7,0x4E  ; xmm2=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67)
+
+        mov     edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
+        mov     esi, JSAMPROW [edi+2*SIZEOF_JSAMPROW]
+        movq    XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm1
+        movq    XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm3
+        mov     edx, JSAMPROW [edi+4*SIZEOF_JSAMPROW]
+        mov     esi, JSAMPROW [edi+6*SIZEOF_JSAMPROW]
+        movq    XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm4
+        movq    XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm7
+
+        mov     edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
+        mov     esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW]
+        movq    XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm5
+        movq    XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm0
+        mov     edx, JSAMPROW [edi+5*SIZEOF_JSAMPROW]
+        mov     esi, JSAMPROW [edi+7*SIZEOF_JSAMPROW]
+        movq    XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6
+        movq    XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm2
+
+        pop     edi
+        pop     esi
+;       pop     edx             ; need not be preserved
+;       pop     ecx             ; unused
+        poppic  ebx
+        mov     esp,ebp         ; esp <- aligned ebp
+        pop     esp             ; esp <- original ebp
+        pop     ebp
+        ret
+
+; For some reason, the OS X linker does not honor the request to align the
+; segment unless we do this.
+        align   16