summaryrefslogtreecommitdiffstats
path: root/media/libjpeg/simd/i386/jidctint-sse2.asm
diff options
context:
space:
mode:
Diffstat (limited to 'media/libjpeg/simd/i386/jidctint-sse2.asm')
-rw-r--r--media/libjpeg/simd/i386/jidctint-sse2.asm858
1 files changed, 858 insertions, 0 deletions
diff --git a/media/libjpeg/simd/i386/jidctint-sse2.asm b/media/libjpeg/simd/i386/jidctint-sse2.asm
new file mode 100644
index 0000000000..43e320189b
--- /dev/null
+++ b/media/libjpeg/simd/i386/jidctint-sse2.asm
@@ -0,0 +1,858 @@
+;
+; jidctint.asm - accurate integer IDCT (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+; Copyright (C) 2016, 2020, D. R. Commander.
+;
+; 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 slower but more accurate integer implementation of the
+; inverse DCT (Discrete Cosine Transform). The following code is based
+; directly on the IJG's original jidctint.c; see the jidctint.c for
+; more details.
+
+%include "jsimdext.inc"
+%include "jdct.inc"
+
+; --------------------------------------------------------------------------
+
+%define CONST_BITS 13
+%define PASS1_BITS 2
+
+%define DESCALE_P1 (CONST_BITS - PASS1_BITS)
+%define DESCALE_P2 (CONST_BITS + PASS1_BITS + 3)
+
+%if CONST_BITS == 13
+F_0_298 equ 2446 ; FIX(0.298631336)
+F_0_390 equ 3196 ; FIX(0.390180644)
+F_0_541 equ 4433 ; FIX(0.541196100)
+F_0_765 equ 6270 ; FIX(0.765366865)
+F_0_899 equ 7373 ; FIX(0.899976223)
+F_1_175 equ 9633 ; FIX(1.175875602)
+F_1_501 equ 12299 ; FIX(1.501321110)
+F_1_847 equ 15137 ; FIX(1.847759065)
+F_1_961 equ 16069 ; FIX(1.961570560)
+F_2_053 equ 16819 ; FIX(2.053119869)
+F_2_562 equ 20995 ; FIX(2.562915447)
+F_3_072 equ 25172 ; FIX(3.072711026)
+%else
+; NASM cannot do compile-time arithmetic on floating-point constants.
+%define DESCALE(x, n) (((x) + (1 << ((n) - 1))) >> (n))
+F_0_298 equ DESCALE( 320652955, 30 - CONST_BITS) ; FIX(0.298631336)
+F_0_390 equ DESCALE( 418953276, 30 - CONST_BITS) ; FIX(0.390180644)
+F_0_541 equ DESCALE( 581104887, 30 - CONST_BITS) ; FIX(0.541196100)
+F_0_765 equ DESCALE( 821806413, 30 - CONST_BITS) ; FIX(0.765366865)
+F_0_899 equ DESCALE( 966342111, 30 - CONST_BITS) ; FIX(0.899976223)
+F_1_175 equ DESCALE(1262586813, 30 - CONST_BITS) ; FIX(1.175875602)
+F_1_501 equ DESCALE(1612031267, 30 - CONST_BITS) ; FIX(1.501321110)
+F_1_847 equ DESCALE(1984016188, 30 - CONST_BITS) ; FIX(1.847759065)
+F_1_961 equ DESCALE(2106220350, 30 - CONST_BITS) ; FIX(1.961570560)
+F_2_053 equ DESCALE(2204520673, 30 - CONST_BITS) ; FIX(2.053119869)
+F_2_562 equ DESCALE(2751909506, 30 - CONST_BITS) ; FIX(2.562915447)
+F_3_072 equ DESCALE(3299298341, 30 - CONST_BITS) ; FIX(3.072711026)
+%endif
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 32
+ GLOBAL_DATA(jconst_idct_islow_sse2)
+
+EXTN(jconst_idct_islow_sse2):
+
+PW_F130_F054 times 4 dw (F_0_541 + F_0_765), F_0_541
+PW_F054_MF130 times 4 dw F_0_541, (F_0_541 - F_1_847)
+PW_MF078_F117 times 4 dw (F_1_175 - F_1_961), F_1_175
+PW_F117_F078 times 4 dw F_1_175, (F_1_175 - F_0_390)
+PW_MF060_MF089 times 4 dw (F_0_298 - F_0_899), -F_0_899
+PW_MF089_F060 times 4 dw -F_0_899, (F_1_501 - F_0_899)
+PW_MF050_MF256 times 4 dw (F_2_053 - F_2_562), -F_2_562
+PW_MF256_F050 times 4 dw -F_2_562, (F_3_072 - F_2_562)
+PD_DESCALE_P1 times 4 dd 1 << (DESCALE_P1 - 1)
+PD_DESCALE_P2 times 4 dd 1 << (DESCALE_P2 - 1)
+PB_CENTERJSAMP times 16 db CENTERJSAMPLE
+
+ alignz 32
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Perform dequantization and inverse DCT on one block of coefficients.
+;
+; GLOBAL(void)
+; jsimd_idct_islow_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 12
+
+ align 32
+ GLOBAL_FUNCTION(jsimd_idct_islow_sse2)
+
+EXTN(jsimd_idct_islow_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_ISLOW_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 xmm5, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm5, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ psllw xmm5, PASS1_BITS
+
+ movdqa xmm4, xmm5 ; xmm5=in0=(00 01 02 03 04 05 06 07)
+ punpcklwd xmm5, xmm5 ; xmm5=(00 00 01 01 02 02 03 03)
+ punpckhwd xmm4, xmm4 ; xmm4=(04 04 05 05 06 06 07 07)
+
+ pshufd xmm7, xmm5, 0x00 ; xmm7=col0=(00 00 00 00 00 00 00 00)
+ pshufd xmm6, xmm5, 0x55 ; xmm6=col1=(01 01 01 01 01 01 01 01)
+ pshufd xmm1, xmm5, 0xAA ; xmm1=col2=(02 02 02 02 02 02 02 02)
+ pshufd xmm5, xmm5, 0xFF ; xmm5=col3=(03 03 03 03 03 03 03 03)
+ pshufd xmm0, xmm4, 0x00 ; xmm0=col4=(04 04 04 04 04 04 04 04)
+ pshufd xmm3, xmm4, 0x55 ; xmm3=col5=(05 05 05 05 05 05 05 05)
+ pshufd xmm2, xmm4, 0xAA ; xmm2=col6=(06 06 06 06 06 06 06 06)
+ pshufd xmm4, xmm4, 0xFF ; xmm4=col7=(07 07 07 07 07 07 07 07)
+
+ movdqa XMMWORD [wk(8)], xmm6 ; wk(8)=col1
+ movdqa XMMWORD [wk(9)], xmm5 ; wk(9)=col3
+ movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5
+ movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7
+ 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_ISLOW_MULT_TYPE)]
+ pmullw xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_ISLOW_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_ISLOW_MULT_TYPE)]
+ pmullw xmm3, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ ; (Original)
+ ; z1 = (z2 + z3) * 0.541196100;
+ ; tmp2 = z1 + z3 * -1.847759065;
+ ; tmp3 = z1 + z2 * 0.765366865;
+ ;
+ ; (This implementation)
+ ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065);
+ ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100;
+
+ movdqa xmm4, xmm1 ; xmm1=in2=z2
+ movdqa xmm5, xmm1
+ punpcklwd xmm4, xmm3 ; xmm3=in6=z3
+ punpckhwd xmm5, xmm3
+ movdqa xmm1, xmm4
+ movdqa xmm3, xmm5
+ pmaddwd xmm4, [GOTOFF(ebx,PW_F130_F054)] ; xmm4=tmp3L
+ pmaddwd xmm5, [GOTOFF(ebx,PW_F130_F054)] ; xmm5=tmp3H
+ pmaddwd xmm1, [GOTOFF(ebx,PW_F054_MF130)] ; xmm1=tmp2L
+ pmaddwd xmm3, [GOTOFF(ebx,PW_F054_MF130)] ; xmm3=tmp2H
+
+ movdqa xmm6, xmm0
+ paddw xmm0, xmm2 ; xmm0=in0+in4
+ psubw xmm6, xmm2 ; xmm6=in0-in4
+
+ pxor xmm7, xmm7
+ pxor xmm2, xmm2
+ punpcklwd xmm7, xmm0 ; xmm7=tmp0L
+ punpckhwd xmm2, xmm0 ; xmm2=tmp0H
+ psrad xmm7, (16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS
+ psrad xmm2, (16-CONST_BITS) ; psrad xmm2,16 & pslld xmm2,CONST_BITS
+
+ movdqa xmm0, xmm7
+ paddd xmm7, xmm4 ; xmm7=tmp10L
+ psubd xmm0, xmm4 ; xmm0=tmp13L
+ movdqa xmm4, xmm2
+ paddd xmm2, xmm5 ; xmm2=tmp10H
+ psubd xmm4, xmm5 ; xmm4=tmp13H
+
+ movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=tmp10L
+ movdqa XMMWORD [wk(1)], xmm2 ; wk(1)=tmp10H
+ movdqa XMMWORD [wk(2)], xmm0 ; wk(2)=tmp13L
+ movdqa XMMWORD [wk(3)], xmm4 ; wk(3)=tmp13H
+
+ pxor xmm5, xmm5
+ pxor xmm7, xmm7
+ punpcklwd xmm5, xmm6 ; xmm5=tmp1L
+ punpckhwd xmm7, xmm6 ; xmm7=tmp1H
+ psrad xmm5, (16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS
+ psrad xmm7, (16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS
+
+ movdqa xmm2, xmm5
+ paddd xmm5, xmm1 ; xmm5=tmp11L
+ psubd xmm2, xmm1 ; xmm2=tmp12L
+ movdqa xmm0, xmm7
+ paddd xmm7, xmm3 ; xmm7=tmp11H
+ psubd xmm0, xmm3 ; xmm0=tmp12H
+
+ movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L
+ movdqa XMMWORD [wk(5)], xmm7 ; wk(5)=tmp11H
+ movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=tmp12L
+ movdqa XMMWORD [wk(7)], xmm0 ; wk(7)=tmp12H
+
+ ; -- Odd part
+
+ movdqa xmm4, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm6, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm4, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm6, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm1, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ movdqa xmm5, xmm6
+ movdqa xmm7, xmm4
+ paddw xmm5, xmm3 ; xmm5=z3
+ paddw xmm7, xmm1 ; xmm7=z4
+
+ ; (Original)
+ ; z5 = (z3 + z4) * 1.175875602;
+ ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644;
+ ; z3 += z5; z4 += z5;
+ ;
+ ; (This implementation)
+ ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
+ ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
+
+ movdqa xmm2, xmm5
+ movdqa xmm0, xmm5
+ punpcklwd xmm2, xmm7
+ punpckhwd xmm0, xmm7
+ movdqa xmm5, xmm2
+ movdqa xmm7, xmm0
+ pmaddwd xmm2, [GOTOFF(ebx,PW_MF078_F117)] ; xmm2=z3L
+ pmaddwd xmm0, [GOTOFF(ebx,PW_MF078_F117)] ; xmm0=z3H
+ pmaddwd xmm5, [GOTOFF(ebx,PW_F117_F078)] ; xmm5=z4L
+ pmaddwd xmm7, [GOTOFF(ebx,PW_F117_F078)] ; xmm7=z4H
+
+ movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=z3L
+ movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=z3H
+
+ ; (Original)
+ ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2;
+ ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869;
+ ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110;
+ ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
+ ; tmp0 += z1 + z3; tmp1 += z2 + z4;
+ ; tmp2 += z2 + z3; tmp3 += z1 + z4;
+ ;
+ ; (This implementation)
+ ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223;
+ ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447;
+ ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447);
+ ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223);
+ ; tmp0 += z3; tmp1 += z4;
+ ; tmp2 += z3; tmp3 += z4;
+
+ movdqa xmm2, xmm3
+ movdqa xmm0, xmm3
+ punpcklwd xmm2, xmm4
+ punpckhwd xmm0, xmm4
+ movdqa xmm3, xmm2
+ movdqa xmm4, xmm0
+ pmaddwd xmm2, [GOTOFF(ebx,PW_MF060_MF089)] ; xmm2=tmp0L
+ pmaddwd xmm0, [GOTOFF(ebx,PW_MF060_MF089)] ; xmm0=tmp0H
+ pmaddwd xmm3, [GOTOFF(ebx,PW_MF089_F060)] ; xmm3=tmp3L
+ pmaddwd xmm4, [GOTOFF(ebx,PW_MF089_F060)] ; xmm4=tmp3H
+
+ paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp0L
+ paddd xmm0, XMMWORD [wk(11)] ; xmm0=tmp0H
+ paddd xmm3, xmm5 ; xmm3=tmp3L
+ paddd xmm4, xmm7 ; xmm4=tmp3H
+
+ movdqa XMMWORD [wk(8)], xmm2 ; wk(8)=tmp0L
+ movdqa XMMWORD [wk(9)], xmm0 ; wk(9)=tmp0H
+
+ movdqa xmm2, xmm1
+ movdqa xmm0, xmm1
+ punpcklwd xmm2, xmm6
+ punpckhwd xmm0, xmm6
+ movdqa xmm1, xmm2
+ movdqa xmm6, xmm0
+ pmaddwd xmm2, [GOTOFF(ebx,PW_MF050_MF256)] ; xmm2=tmp1L
+ pmaddwd xmm0, [GOTOFF(ebx,PW_MF050_MF256)] ; xmm0=tmp1H
+ pmaddwd xmm1, [GOTOFF(ebx,PW_MF256_F050)] ; xmm1=tmp2L
+ pmaddwd xmm6, [GOTOFF(ebx,PW_MF256_F050)] ; xmm6=tmp2H
+
+ paddd xmm2, xmm5 ; xmm2=tmp1L
+ paddd xmm0, xmm7 ; xmm0=tmp1H
+ paddd xmm1, XMMWORD [wk(10)] ; xmm1=tmp2L
+ paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H
+
+ movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=tmp1L
+ movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=tmp1H
+
+ ; -- Final output stage
+
+ movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L
+ movdqa xmm7, XMMWORD [wk(1)] ; xmm7=tmp10H
+
+ movdqa xmm2, xmm5
+ movdqa xmm0, xmm7
+ paddd xmm5, xmm3 ; xmm5=data0L
+ paddd xmm7, xmm4 ; xmm7=data0H
+ psubd xmm2, xmm3 ; xmm2=data7L
+ psubd xmm0, xmm4 ; xmm0=data7H
+
+ movdqa xmm3, [GOTOFF(ebx,PD_DESCALE_P1)] ; xmm3=[PD_DESCALE_P1]
+
+ paddd xmm5, xmm3
+ paddd xmm7, xmm3
+ psrad xmm5, DESCALE_P1
+ psrad xmm7, DESCALE_P1
+ paddd xmm2, xmm3
+ paddd xmm0, xmm3
+ psrad xmm2, DESCALE_P1
+ psrad xmm0, DESCALE_P1
+
+ packssdw xmm5, xmm7 ; xmm5=data0=(00 01 02 03 04 05 06 07)
+ packssdw xmm2, xmm0 ; xmm2=data7=(70 71 72 73 74 75 76 77)
+
+ movdqa xmm4, XMMWORD [wk(4)] ; xmm4=tmp11L
+ movdqa xmm3, XMMWORD [wk(5)] ; xmm3=tmp11H
+
+ movdqa xmm7, xmm4
+ movdqa xmm0, xmm3
+ paddd xmm4, xmm1 ; xmm4=data1L
+ paddd xmm3, xmm6 ; xmm3=data1H
+ psubd xmm7, xmm1 ; xmm7=data6L
+ psubd xmm0, xmm6 ; xmm0=data6H
+
+ movdqa xmm1, [GOTOFF(ebx,PD_DESCALE_P1)] ; xmm1=[PD_DESCALE_P1]
+
+ paddd xmm4, xmm1
+ paddd xmm3, xmm1
+ psrad xmm4, DESCALE_P1
+ psrad xmm3, DESCALE_P1
+ paddd xmm7, xmm1
+ paddd xmm0, xmm1
+ psrad xmm7, DESCALE_P1
+ psrad xmm0, DESCALE_P1
+
+ packssdw xmm4, xmm3 ; xmm4=data1=(10 11 12 13 14 15 16 17)
+ packssdw xmm7, xmm0 ; xmm7=data6=(60 61 62 63 64 65 66 67)
+
+ movdqa xmm6, xmm5 ; transpose coefficients(phase 1)
+ punpcklwd xmm5, xmm4 ; xmm5=(00 10 01 11 02 12 03 13)
+ punpckhwd xmm6, xmm4 ; xmm6=(04 14 05 15 06 16 07 17)
+ movdqa xmm1, xmm7 ; transpose coefficients(phase 1)
+ punpcklwd xmm7, xmm2 ; xmm7=(60 70 61 71 62 72 63 73)
+ punpckhwd xmm1, xmm2 ; xmm1=(64 74 65 75 66 76 67 77)
+
+ movdqa xmm3, XMMWORD [wk(6)] ; xmm3=tmp12L
+ movdqa xmm0, XMMWORD [wk(7)] ; xmm0=tmp12H
+ movdqa xmm4, XMMWORD [wk(10)] ; xmm4=tmp1L
+ movdqa xmm2, XMMWORD [wk(11)] ; xmm2=tmp1H
+
+ movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 01 11 02 12 03 13)
+ movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=(04 14 05 15 06 16 07 17)
+ movdqa XMMWORD [wk(4)], xmm7 ; wk(4)=(60 70 61 71 62 72 63 73)
+ movdqa XMMWORD [wk(5)], xmm1 ; wk(5)=(64 74 65 75 66 76 67 77)
+
+ movdqa xmm5, xmm3
+ movdqa xmm6, xmm0
+ paddd xmm3, xmm4 ; xmm3=data2L
+ paddd xmm0, xmm2 ; xmm0=data2H
+ psubd xmm5, xmm4 ; xmm5=data5L
+ psubd xmm6, xmm2 ; xmm6=data5H
+
+ movdqa xmm7, [GOTOFF(ebx,PD_DESCALE_P1)] ; xmm7=[PD_DESCALE_P1]
+
+ paddd xmm3, xmm7
+ paddd xmm0, xmm7
+ psrad xmm3, DESCALE_P1
+ psrad xmm0, DESCALE_P1
+ paddd xmm5, xmm7
+ paddd xmm6, xmm7
+ psrad xmm5, DESCALE_P1
+ psrad xmm6, DESCALE_P1
+
+ packssdw xmm3, xmm0 ; xmm3=data2=(20 21 22 23 24 25 26 27)
+ packssdw xmm5, xmm6 ; xmm5=data5=(50 51 52 53 54 55 56 57)
+
+ movdqa xmm1, XMMWORD [wk(2)] ; xmm1=tmp13L
+ movdqa xmm4, XMMWORD [wk(3)] ; xmm4=tmp13H
+ movdqa xmm2, XMMWORD [wk(8)] ; xmm2=tmp0L
+ movdqa xmm7, XMMWORD [wk(9)] ; xmm7=tmp0H
+
+ movdqa xmm0, xmm1
+ movdqa xmm6, xmm4
+ paddd xmm1, xmm2 ; xmm1=data3L
+ paddd xmm4, xmm7 ; xmm4=data3H
+ psubd xmm0, xmm2 ; xmm0=data4L
+ psubd xmm6, xmm7 ; xmm6=data4H
+
+ movdqa xmm2, [GOTOFF(ebx,PD_DESCALE_P1)] ; xmm2=[PD_DESCALE_P1]
+
+ paddd xmm1, xmm2
+ paddd xmm4, xmm2
+ psrad xmm1, DESCALE_P1
+ psrad xmm4, DESCALE_P1
+ paddd xmm0, xmm2
+ paddd xmm6, xmm2
+ psrad xmm0, DESCALE_P1
+ psrad xmm6, DESCALE_P1
+
+ packssdw xmm1, xmm4 ; xmm1=data3=(30 31 32 33 34 35 36 37)
+ packssdw xmm0, xmm6 ; xmm0=data4=(40 41 42 43 44 45 46 47)
+
+ movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 01 11 02 12 03 13)
+ movdqa xmm2, XMMWORD [wk(1)] ; xmm2=(04 14 05 15 06 16 07 17)
+
+ movdqa xmm4, xmm3 ; transpose coefficients(phase 1)
+ punpcklwd xmm3, xmm1 ; xmm3=(20 30 21 31 22 32 23 33)
+ punpckhwd xmm4, xmm1 ; xmm4=(24 34 25 35 26 36 27 37)
+ movdqa xmm6, xmm0 ; transpose coefficients(phase 1)
+ punpcklwd xmm0, xmm5 ; xmm0=(40 50 41 51 42 52 43 53)
+ punpckhwd xmm6, xmm5 ; xmm6=(44 54 45 55 46 56 47 57)
+
+ movdqa xmm1, xmm7 ; transpose coefficients(phase 2)
+ punpckldq xmm7, xmm3 ; xmm7=(00 10 20 30 01 11 21 31)
+ punpckhdq xmm1, xmm3 ; xmm1=(02 12 22 32 03 13 23 33)
+ movdqa xmm5, xmm2 ; transpose coefficients(phase 2)
+ punpckldq xmm2, xmm4 ; xmm2=(04 14 24 34 05 15 25 35)
+ punpckhdq xmm5, xmm4 ; xmm5=(06 16 26 36 07 17 27 37)
+
+ movdqa xmm3, XMMWORD [wk(4)] ; xmm3=(60 70 61 71 62 72 63 73)
+ movdqa xmm4, XMMWORD [wk(5)] ; xmm4=(64 74 65 75 66 76 67 77)
+
+ movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=(04 14 24 34 05 15 25 35)
+ movdqa XMMWORD [wk(7)], xmm5 ; wk(7)=(06 16 26 36 07 17 27 37)
+
+ movdqa xmm2, xmm0 ; transpose coefficients(phase 2)
+ punpckldq xmm0, xmm3 ; xmm0=(40 50 60 70 41 51 61 71)
+ punpckhdq xmm2, xmm3 ; xmm2=(42 52 62 72 43 53 63 73)
+ movdqa xmm5, xmm6 ; transpose coefficients(phase 2)
+ punpckldq xmm6, xmm4 ; xmm6=(44 54 64 74 45 55 65 75)
+ punpckhdq xmm5, xmm4 ; xmm5=(46 56 66 76 47 57 67 77)
+
+ movdqa xmm3, xmm7 ; transpose coefficients(phase 3)
+ punpcklqdq xmm7, xmm0 ; xmm7=col0=(00 10 20 30 40 50 60 70)
+ punpckhqdq xmm3, xmm0 ; xmm3=col1=(01 11 21 31 41 51 61 71)
+ movdqa xmm4, xmm1 ; transpose coefficients(phase 3)
+ punpcklqdq xmm1, xmm2 ; xmm1=col2=(02 12 22 32 42 52 62 72)
+ punpckhqdq xmm4, xmm2 ; xmm4=col3=(03 13 23 33 43 53 63 73)
+
+ movdqa xmm0, XMMWORD [wk(6)] ; xmm0=(04 14 24 34 05 15 25 35)
+ movdqa xmm2, XMMWORD [wk(7)] ; xmm2=(06 16 26 36 07 17 27 37)
+
+ movdqa XMMWORD [wk(8)], xmm3 ; wk(8)=col1
+ movdqa XMMWORD [wk(9)], xmm4 ; wk(9)=col3
+
+ movdqa xmm3, xmm0 ; transpose coefficients(phase 3)
+ punpcklqdq xmm0, xmm6 ; xmm0=col4=(04 14 24 34 44 54 64 74)
+ punpckhqdq xmm3, xmm6 ; xmm3=col5=(05 15 25 35 45 55 65 75)
+ movdqa xmm4, xmm2 ; transpose coefficients(phase 3)
+ punpcklqdq xmm2, xmm5 ; xmm2=col6=(06 16 26 36 46 56 66 76)
+ punpckhqdq xmm4, xmm5 ; xmm4=col7=(07 17 27 37 47 57 67 77)
+
+ movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5
+ movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7
+.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
+
+ ; xmm7=col0, xmm1=col2, xmm0=col4, xmm2=col6
+
+ ; (Original)
+ ; z1 = (z2 + z3) * 0.541196100;
+ ; tmp2 = z1 + z3 * -1.847759065;
+ ; tmp3 = z1 + z2 * 0.765366865;
+ ;
+ ; (This implementation)
+ ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065);
+ ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100;
+
+ movdqa xmm6, xmm1 ; xmm1=in2=z2
+ movdqa xmm5, xmm1
+ punpcklwd xmm6, xmm2 ; xmm2=in6=z3
+ punpckhwd xmm5, xmm2
+ movdqa xmm1, xmm6
+ movdqa xmm2, xmm5
+ pmaddwd xmm6, [GOTOFF(ebx,PW_F130_F054)] ; xmm6=tmp3L
+ pmaddwd xmm5, [GOTOFF(ebx,PW_F130_F054)] ; xmm5=tmp3H
+ pmaddwd xmm1, [GOTOFF(ebx,PW_F054_MF130)] ; xmm1=tmp2L
+ pmaddwd xmm2, [GOTOFF(ebx,PW_F054_MF130)] ; xmm2=tmp2H
+
+ movdqa xmm3, xmm7
+ paddw xmm7, xmm0 ; xmm7=in0+in4
+ psubw xmm3, xmm0 ; xmm3=in0-in4
+
+ pxor xmm4, xmm4
+ pxor xmm0, xmm0
+ punpcklwd xmm4, xmm7 ; xmm4=tmp0L
+ punpckhwd xmm0, xmm7 ; xmm0=tmp0H
+ psrad xmm4, (16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS
+ psrad xmm0, (16-CONST_BITS) ; psrad xmm0,16 & pslld xmm0,CONST_BITS
+
+ movdqa xmm7, xmm4
+ paddd xmm4, xmm6 ; xmm4=tmp10L
+ psubd xmm7, xmm6 ; xmm7=tmp13L
+ movdqa xmm6, xmm0
+ paddd xmm0, xmm5 ; xmm0=tmp10H
+ psubd xmm6, xmm5 ; xmm6=tmp13H
+
+ movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=tmp10L
+ movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp10H
+ movdqa XMMWORD [wk(2)], xmm7 ; wk(2)=tmp13L
+ movdqa XMMWORD [wk(3)], xmm6 ; wk(3)=tmp13H
+
+ pxor xmm5, xmm5
+ pxor xmm4, xmm4
+ punpcklwd xmm5, xmm3 ; xmm5=tmp1L
+ punpckhwd xmm4, xmm3 ; xmm4=tmp1H
+ psrad xmm5, (16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS
+ psrad xmm4, (16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS
+
+ movdqa xmm0, xmm5
+ paddd xmm5, xmm1 ; xmm5=tmp11L
+ psubd xmm0, xmm1 ; xmm0=tmp12L
+ movdqa xmm7, xmm4
+ paddd xmm4, xmm2 ; xmm4=tmp11H
+ psubd xmm7, xmm2 ; xmm7=tmp12H
+
+ movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L
+ movdqa XMMWORD [wk(5)], xmm4 ; wk(5)=tmp11H
+ movdqa XMMWORD [wk(6)], xmm0 ; wk(6)=tmp12L
+ movdqa XMMWORD [wk(7)], xmm7 ; wk(7)=tmp12H
+
+ ; -- Odd part
+
+ movdqa xmm6, XMMWORD [wk(9)] ; xmm6=col3
+ movdqa xmm3, XMMWORD [wk(8)] ; xmm3=col1
+ movdqa xmm1, XMMWORD [wk(11)] ; xmm1=col7
+ movdqa xmm2, XMMWORD [wk(10)] ; xmm2=col5
+
+ movdqa xmm5, xmm6
+ movdqa xmm4, xmm3
+ paddw xmm5, xmm1 ; xmm5=z3
+ paddw xmm4, xmm2 ; xmm4=z4
+
+ ; (Original)
+ ; z5 = (z3 + z4) * 1.175875602;
+ ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644;
+ ; z3 += z5; z4 += z5;
+ ;
+ ; (This implementation)
+ ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
+ ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
+
+ movdqa xmm0, xmm5
+ movdqa xmm7, xmm5
+ punpcklwd xmm0, xmm4
+ punpckhwd xmm7, xmm4
+ movdqa xmm5, xmm0
+ movdqa xmm4, xmm7
+ pmaddwd xmm0, [GOTOFF(ebx,PW_MF078_F117)] ; xmm0=z3L
+ pmaddwd xmm7, [GOTOFF(ebx,PW_MF078_F117)] ; xmm7=z3H
+ pmaddwd xmm5, [GOTOFF(ebx,PW_F117_F078)] ; xmm5=z4L
+ pmaddwd xmm4, [GOTOFF(ebx,PW_F117_F078)] ; xmm4=z4H
+
+ movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=z3L
+ movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=z3H
+
+ ; (Original)
+ ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2;
+ ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869;
+ ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110;
+ ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
+ ; tmp0 += z1 + z3; tmp1 += z2 + z4;
+ ; tmp2 += z2 + z3; tmp3 += z1 + z4;
+ ;
+ ; (This implementation)
+ ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223;
+ ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447;
+ ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447);
+ ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223);
+ ; tmp0 += z3; tmp1 += z4;
+ ; tmp2 += z3; tmp3 += z4;
+
+ movdqa xmm0, xmm1
+ movdqa xmm7, xmm1
+ punpcklwd xmm0, xmm3
+ punpckhwd xmm7, xmm3
+ movdqa xmm1, xmm0
+ movdqa xmm3, xmm7
+ pmaddwd xmm0, [GOTOFF(ebx,PW_MF060_MF089)] ; xmm0=tmp0L
+ pmaddwd xmm7, [GOTOFF(ebx,PW_MF060_MF089)] ; xmm7=tmp0H
+ pmaddwd xmm1, [GOTOFF(ebx,PW_MF089_F060)] ; xmm1=tmp3L
+ pmaddwd xmm3, [GOTOFF(ebx,PW_MF089_F060)] ; xmm3=tmp3H
+
+ paddd xmm0, XMMWORD [wk(10)] ; xmm0=tmp0L
+ paddd xmm7, XMMWORD [wk(11)] ; xmm7=tmp0H
+ paddd xmm1, xmm5 ; xmm1=tmp3L
+ paddd xmm3, xmm4 ; xmm3=tmp3H
+
+ movdqa XMMWORD [wk(8)], xmm0 ; wk(8)=tmp0L
+ movdqa XMMWORD [wk(9)], xmm7 ; wk(9)=tmp0H
+
+ movdqa xmm0, xmm2
+ movdqa xmm7, xmm2
+ punpcklwd xmm0, xmm6
+ punpckhwd xmm7, xmm6
+ movdqa xmm2, xmm0
+ movdqa xmm6, xmm7
+ pmaddwd xmm0, [GOTOFF(ebx,PW_MF050_MF256)] ; xmm0=tmp1L
+ pmaddwd xmm7, [GOTOFF(ebx,PW_MF050_MF256)] ; xmm7=tmp1H
+ pmaddwd xmm2, [GOTOFF(ebx,PW_MF256_F050)] ; xmm2=tmp2L
+ pmaddwd xmm6, [GOTOFF(ebx,PW_MF256_F050)] ; xmm6=tmp2H
+
+ paddd xmm0, xmm5 ; xmm0=tmp1L
+ paddd xmm7, xmm4 ; xmm7=tmp1H
+ paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp2L
+ paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H
+
+ movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=tmp1L
+ movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=tmp1H
+
+ ; -- Final output stage
+
+ movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L
+ movdqa xmm4, XMMWORD [wk(1)] ; xmm4=tmp10H
+
+ movdqa xmm0, xmm5
+ movdqa xmm7, xmm4
+ paddd xmm5, xmm1 ; xmm5=data0L
+ paddd xmm4, xmm3 ; xmm4=data0H
+ psubd xmm0, xmm1 ; xmm0=data7L
+ psubd xmm7, xmm3 ; xmm7=data7H
+
+ movdqa xmm1, [GOTOFF(ebx,PD_DESCALE_P2)] ; xmm1=[PD_DESCALE_P2]
+
+ paddd xmm5, xmm1
+ paddd xmm4, xmm1
+ psrad xmm5, DESCALE_P2
+ psrad xmm4, DESCALE_P2
+ paddd xmm0, xmm1
+ paddd xmm7, xmm1
+ psrad xmm0, DESCALE_P2
+ psrad xmm7, DESCALE_P2
+
+ packssdw xmm5, xmm4 ; xmm5=data0=(00 10 20 30 40 50 60 70)
+ packssdw xmm0, xmm7 ; xmm0=data7=(07 17 27 37 47 57 67 77)
+
+ movdqa xmm3, XMMWORD [wk(4)] ; xmm3=tmp11L
+ movdqa xmm1, XMMWORD [wk(5)] ; xmm1=tmp11H
+
+ movdqa xmm4, xmm3
+ movdqa xmm7, xmm1
+ paddd xmm3, xmm2 ; xmm3=data1L
+ paddd xmm1, xmm6 ; xmm1=data1H
+ psubd xmm4, xmm2 ; xmm4=data6L
+ psubd xmm7, xmm6 ; xmm7=data6H
+
+ movdqa xmm2, [GOTOFF(ebx,PD_DESCALE_P2)] ; xmm2=[PD_DESCALE_P2]
+
+ paddd xmm3, xmm2
+ paddd xmm1, xmm2
+ psrad xmm3, DESCALE_P2
+ psrad xmm1, DESCALE_P2
+ paddd xmm4, xmm2
+ paddd xmm7, xmm2
+ psrad xmm4, DESCALE_P2
+ psrad xmm7, DESCALE_P2
+
+ packssdw xmm3, xmm1 ; xmm3=data1=(01 11 21 31 41 51 61 71)
+ packssdw xmm4, xmm7 ; xmm4=data6=(06 16 26 36 46 56 66 76)
+
+ packsswb xmm5, xmm4 ; xmm5=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
+ packsswb xmm3, xmm0 ; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
+
+ movdqa xmm6, XMMWORD [wk(6)] ; xmm6=tmp12L
+ movdqa xmm2, XMMWORD [wk(7)] ; xmm2=tmp12H
+ movdqa xmm1, XMMWORD [wk(10)] ; xmm1=tmp1L
+ movdqa xmm7, XMMWORD [wk(11)] ; xmm7=tmp1H
+
+ movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
+ movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
+
+ movdqa xmm4, xmm6
+ movdqa xmm0, xmm2
+ paddd xmm6, xmm1 ; xmm6=data2L
+ paddd xmm2, xmm7 ; xmm2=data2H
+ psubd xmm4, xmm1 ; xmm4=data5L
+ psubd xmm0, xmm7 ; xmm0=data5H
+
+ movdqa xmm5, [GOTOFF(ebx,PD_DESCALE_P2)] ; xmm5=[PD_DESCALE_P2]
+
+ paddd xmm6, xmm5
+ paddd xmm2, xmm5
+ psrad xmm6, DESCALE_P2
+ psrad xmm2, DESCALE_P2
+ paddd xmm4, xmm5
+ paddd xmm0, xmm5
+ psrad xmm4, DESCALE_P2
+ psrad xmm0, DESCALE_P2
+
+ packssdw xmm6, xmm2 ; xmm6=data2=(02 12 22 32 42 52 62 72)
+ packssdw xmm4, xmm0 ; xmm4=data5=(05 15 25 35 45 55 65 75)
+
+ movdqa xmm3, XMMWORD [wk(2)] ; xmm3=tmp13L
+ movdqa xmm1, XMMWORD [wk(3)] ; xmm1=tmp13H
+ movdqa xmm7, XMMWORD [wk(8)] ; xmm7=tmp0L
+ movdqa xmm5, XMMWORD [wk(9)] ; xmm5=tmp0H
+
+ movdqa xmm2, xmm3
+ movdqa xmm0, xmm1
+ paddd xmm3, xmm7 ; xmm3=data3L
+ paddd xmm1, xmm5 ; xmm1=data3H
+ psubd xmm2, xmm7 ; xmm2=data4L
+ psubd xmm0, xmm5 ; xmm0=data4H
+
+ movdqa xmm7, [GOTOFF(ebx,PD_DESCALE_P2)] ; xmm7=[PD_DESCALE_P2]
+
+ paddd xmm3, xmm7
+ paddd xmm1, xmm7
+ psrad xmm3, DESCALE_P2
+ psrad xmm1, DESCALE_P2
+ paddd xmm2, xmm7
+ paddd xmm0, xmm7
+ psrad xmm2, DESCALE_P2
+ psrad xmm0, DESCALE_P2
+
+ movdqa xmm5, [GOTOFF(ebx,PB_CENTERJSAMP)] ; xmm5=[PB_CENTERJSAMP]
+
+ packssdw xmm3, xmm1 ; xmm3=data3=(03 13 23 33 43 53 63 73)
+ packssdw xmm2, xmm0 ; xmm2=data4=(04 14 24 34 44 54 64 74)
+
+ movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
+ movdqa xmm1, XMMWORD [wk(1)] ; xmm1=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
+
+ packsswb xmm6, xmm2 ; xmm6=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74)
+ packsswb xmm3, xmm4 ; xmm3=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75)
+
+ paddb xmm7, xmm5
+ paddb xmm1, xmm5
+ paddb xmm6, xmm5
+ paddb xmm3, xmm5
+
+ movdqa xmm0, xmm7 ; transpose coefficients(phase 1)
+ punpcklbw xmm7, xmm1 ; xmm7=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71)
+ punpckhbw xmm0, xmm1 ; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77)
+ movdqa xmm2, xmm6 ; transpose coefficients(phase 1)
+ punpcklbw xmm6, xmm3 ; xmm6=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73)
+ punpckhbw xmm2, xmm3 ; xmm2=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75)
+
+ movdqa xmm4, xmm7 ; transpose coefficients(phase 2)
+ punpcklwd xmm7, xmm6 ; xmm7=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
+ punpckhwd xmm4, xmm6 ; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73)
+ movdqa xmm5, xmm2 ; transpose coefficients(phase 2)
+ punpcklwd xmm2, xmm0 ; xmm2=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
+ punpckhwd xmm5, xmm0 ; xmm5=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77)
+
+ movdqa xmm1, xmm7 ; transpose coefficients(phase 3)
+ punpckldq xmm7, xmm2 ; xmm7=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
+ punpckhdq xmm1, xmm2 ; xmm1=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
+ movdqa xmm3, xmm4 ; transpose coefficients(phase 3)
+ punpckldq xmm4, xmm5 ; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57)
+ punpckhdq xmm3, xmm5 ; xmm3=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77)
+
+ pshufd xmm6, xmm7, 0x4E ; xmm6=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
+ pshufd xmm0, xmm1, 0x4E ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
+ pshufd xmm2, xmm4, 0x4E ; xmm2=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47)
+ pshufd xmm5, xmm3, 0x4E ; xmm5=(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], xmm7
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm1
+ 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], xmm3
+
+ mov edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6
+ 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], xmm2
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm5
+
+ 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 32