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diff --git a/media/libjpeg/simd/i386/jfdctint-mmx.asm b/media/libjpeg/simd/i386/jfdctint-mmx.asm
new file mode 100644
index 0000000000..34a43b9e5e
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+++ b/media/libjpeg/simd/i386/jfdctint-mmx.asm
@@ -0,0 +1,620 @@
+;
+; jfdctint.asm - accurate integer FDCT (MMX)
+;
+; 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
+; forward DCT (Discrete Cosine Transform). The following code is based
+; directly on the IJG's original jfdctint.c; see the jfdctint.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)
+
+%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_fdct_islow_mmx)
+
+EXTN(jconst_fdct_islow_mmx):
+
+PW_F130_F054 times 2 dw (F_0_541 + F_0_765), F_0_541
+PW_F054_MF130 times 2 dw F_0_541, (F_0_541 - F_1_847)
+PW_MF078_F117 times 2 dw (F_1_175 - F_1_961), F_1_175
+PW_F117_F078 times 2 dw F_1_175, (F_1_175 - F_0_390)
+PW_MF060_MF089 times 2 dw (F_0_298 - F_0_899), -F_0_899
+PW_MF089_F060 times 2 dw -F_0_899, (F_1_501 - F_0_899)
+PW_MF050_MF256 times 2 dw (F_2_053 - F_2_562), -F_2_562
+PW_MF256_F050 times 2 dw -F_2_562, (F_3_072 - F_2_562)
+PD_DESCALE_P1 times 2 dd 1 << (DESCALE_P1 - 1)
+PD_DESCALE_P2 times 2 dd 1 << (DESCALE_P2 - 1)
+PW_DESCALE_P2X times 4 dw 1 << (PASS1_BITS - 1)
+
+ alignz 32
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Perform the forward DCT on one block of samples.
+;
+; GLOBAL(void)
+; jsimd_fdct_islow_mmx(DCTELEM *data)
+;
+
+%define data(b) (b) + 8 ; DCTELEM *data
+
+%define original_ebp ebp + 0
+%define wk(i) ebp - (WK_NUM - (i)) * SIZEOF_MMWORD ; mmword wk[WK_NUM]
+%define WK_NUM 2
+
+ align 32
+ GLOBAL_FUNCTION(jsimd_fdct_islow_mmx)
+
+EXTN(jsimd_fdct_islow_mmx):
+ push ebp
+ mov eax, esp ; eax = original ebp
+ sub esp, byte 4
+ and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits
+ mov [esp], eax
+ mov ebp, esp ; ebp = aligned ebp
+ lea esp, [wk(0)]
+ pushpic ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+; push esi ; unused
+; push edi ; unused
+
+ get_GOT ebx ; get GOT address
+
+ ; ---- Pass 1: process rows.
+
+ mov edx, POINTER [data(eax)] ; (DCTELEM *)
+ mov ecx, DCTSIZE/4
+ alignx 16, 7
+.rowloop:
+
+ movq mm0, MMWORD [MMBLOCK(2,0,edx,SIZEOF_DCTELEM)]
+ movq mm1, MMWORD [MMBLOCK(3,0,edx,SIZEOF_DCTELEM)]
+ movq mm2, MMWORD [MMBLOCK(2,1,edx,SIZEOF_DCTELEM)]
+ movq mm3, MMWORD [MMBLOCK(3,1,edx,SIZEOF_DCTELEM)]
+
+ ; mm0=(20 21 22 23), mm2=(24 25 26 27)
+ ; mm1=(30 31 32 33), mm3=(34 35 36 37)
+
+ movq mm4, mm0 ; transpose coefficients(phase 1)
+ punpcklwd mm0, mm1 ; mm0=(20 30 21 31)
+ punpckhwd mm4, mm1 ; mm4=(22 32 23 33)
+ movq mm5, mm2 ; transpose coefficients(phase 1)
+ punpcklwd mm2, mm3 ; mm2=(24 34 25 35)
+ punpckhwd mm5, mm3 ; mm5=(26 36 27 37)
+
+ movq mm6, MMWORD [MMBLOCK(0,0,edx,SIZEOF_DCTELEM)]
+ movq mm7, MMWORD [MMBLOCK(1,0,edx,SIZEOF_DCTELEM)]
+ movq mm1, MMWORD [MMBLOCK(0,1,edx,SIZEOF_DCTELEM)]
+ movq mm3, MMWORD [MMBLOCK(1,1,edx,SIZEOF_DCTELEM)]
+
+ ; mm6=(00 01 02 03), mm1=(04 05 06 07)
+ ; mm7=(10 11 12 13), mm3=(14 15 16 17)
+
+ movq MMWORD [wk(0)], mm4 ; wk(0)=(22 32 23 33)
+ movq MMWORD [wk(1)], mm2 ; wk(1)=(24 34 25 35)
+
+ movq mm4, mm6 ; transpose coefficients(phase 1)
+ punpcklwd mm6, mm7 ; mm6=(00 10 01 11)
+ punpckhwd mm4, mm7 ; mm4=(02 12 03 13)
+ movq mm2, mm1 ; transpose coefficients(phase 1)
+ punpcklwd mm1, mm3 ; mm1=(04 14 05 15)
+ punpckhwd mm2, mm3 ; mm2=(06 16 07 17)
+
+ movq mm7, mm6 ; transpose coefficients(phase 2)
+ punpckldq mm6, mm0 ; mm6=(00 10 20 30)=data0
+ punpckhdq mm7, mm0 ; mm7=(01 11 21 31)=data1
+ movq mm3, mm2 ; transpose coefficients(phase 2)
+ punpckldq mm2, mm5 ; mm2=(06 16 26 36)=data6
+ punpckhdq mm3, mm5 ; mm3=(07 17 27 37)=data7
+
+ movq mm0, mm7
+ movq mm5, mm6
+ psubw mm7, mm2 ; mm7=data1-data6=tmp6
+ psubw mm6, mm3 ; mm6=data0-data7=tmp7
+ paddw mm0, mm2 ; mm0=data1+data6=tmp1
+ paddw mm5, mm3 ; mm5=data0+data7=tmp0
+
+ movq mm2, MMWORD [wk(0)] ; mm2=(22 32 23 33)
+ movq mm3, MMWORD [wk(1)] ; mm3=(24 34 25 35)
+ movq MMWORD [wk(0)], mm7 ; wk(0)=tmp6
+ movq MMWORD [wk(1)], mm6 ; wk(1)=tmp7
+
+ movq mm7, mm4 ; transpose coefficients(phase 2)
+ punpckldq mm4, mm2 ; mm4=(02 12 22 32)=data2
+ punpckhdq mm7, mm2 ; mm7=(03 13 23 33)=data3
+ movq mm6, mm1 ; transpose coefficients(phase 2)
+ punpckldq mm1, mm3 ; mm1=(04 14 24 34)=data4
+ punpckhdq mm6, mm3 ; mm6=(05 15 25 35)=data5
+
+ movq mm2, mm7
+ movq mm3, mm4
+ paddw mm7, mm1 ; mm7=data3+data4=tmp3
+ paddw mm4, mm6 ; mm4=data2+data5=tmp2
+ psubw mm2, mm1 ; mm2=data3-data4=tmp4
+ psubw mm3, mm6 ; mm3=data2-data5=tmp5
+
+ ; -- Even part
+
+ movq mm1, mm5
+ movq mm6, mm0
+ paddw mm5, mm7 ; mm5=tmp10
+ paddw mm0, mm4 ; mm0=tmp11
+ psubw mm1, mm7 ; mm1=tmp13
+ psubw mm6, mm4 ; mm6=tmp12
+
+ movq mm7, mm5
+ paddw mm5, mm0 ; mm5=tmp10+tmp11
+ psubw mm7, mm0 ; mm7=tmp10-tmp11
+
+ psllw mm5, PASS1_BITS ; mm5=data0
+ psllw mm7, PASS1_BITS ; mm7=data4
+
+ movq MMWORD [MMBLOCK(0,0,edx,SIZEOF_DCTELEM)], mm5
+ movq MMWORD [MMBLOCK(0,1,edx,SIZEOF_DCTELEM)], mm7
+
+ ; (Original)
+ ; z1 = (tmp12 + tmp13) * 0.541196100;
+ ; data2 = z1 + tmp13 * 0.765366865;
+ ; data6 = z1 + tmp12 * -1.847759065;
+ ;
+ ; (This implementation)
+ ; data2 = tmp13 * (0.541196100 + 0.765366865) + tmp12 * 0.541196100;
+ ; data6 = tmp13 * 0.541196100 + tmp12 * (0.541196100 - 1.847759065);
+
+ movq mm4, mm1 ; mm1=tmp13
+ movq mm0, mm1
+ punpcklwd mm4, mm6 ; mm6=tmp12
+ punpckhwd mm0, mm6
+ movq mm1, mm4
+ movq mm6, mm0
+ pmaddwd mm4, [GOTOFF(ebx,PW_F130_F054)] ; mm4=data2L
+ pmaddwd mm0, [GOTOFF(ebx,PW_F130_F054)] ; mm0=data2H
+ pmaddwd mm1, [GOTOFF(ebx,PW_F054_MF130)] ; mm1=data6L
+ pmaddwd mm6, [GOTOFF(ebx,PW_F054_MF130)] ; mm6=data6H
+
+ paddd mm4, [GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd mm0, [GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad mm4, DESCALE_P1
+ psrad mm0, DESCALE_P1
+ paddd mm1, [GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd mm6, [GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad mm1, DESCALE_P1
+ psrad mm6, DESCALE_P1
+
+ packssdw mm4, mm0 ; mm4=data2
+ packssdw mm1, mm6 ; mm1=data6
+
+ movq MMWORD [MMBLOCK(2,0,edx,SIZEOF_DCTELEM)], mm4
+ movq MMWORD [MMBLOCK(2,1,edx,SIZEOF_DCTELEM)], mm1
+
+ ; -- Odd part
+
+ movq mm5, MMWORD [wk(0)] ; mm5=tmp6
+ movq mm7, MMWORD [wk(1)] ; mm7=tmp7
+
+ movq mm0, mm2 ; mm2=tmp4
+ movq mm6, mm3 ; mm3=tmp5
+ paddw mm0, mm5 ; mm0=z3
+ paddw mm6, mm7 ; mm6=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);
+
+ movq mm4, mm0
+ movq mm1, mm0
+ punpcklwd mm4, mm6
+ punpckhwd mm1, mm6
+ movq mm0, mm4
+ movq mm6, mm1
+ pmaddwd mm4, [GOTOFF(ebx,PW_MF078_F117)] ; mm4=z3L
+ pmaddwd mm1, [GOTOFF(ebx,PW_MF078_F117)] ; mm1=z3H
+ pmaddwd mm0, [GOTOFF(ebx,PW_F117_F078)] ; mm0=z4L
+ pmaddwd mm6, [GOTOFF(ebx,PW_F117_F078)] ; mm6=z4H
+
+ movq MMWORD [wk(0)], mm4 ; wk(0)=z3L
+ movq MMWORD [wk(1)], mm1 ; wk(1)=z3H
+
+ ; (Original)
+ ; z1 = tmp4 + tmp7; z2 = tmp5 + tmp6;
+ ; tmp4 = tmp4 * 0.298631336; tmp5 = tmp5 * 2.053119869;
+ ; tmp6 = tmp6 * 3.072711026; tmp7 = tmp7 * 1.501321110;
+ ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
+ ; data7 = tmp4 + z1 + z3; data5 = tmp5 + z2 + z4;
+ ; data3 = tmp6 + z2 + z3; data1 = tmp7 + z1 + z4;
+ ;
+ ; (This implementation)
+ ; tmp4 = tmp4 * (0.298631336 - 0.899976223) + tmp7 * -0.899976223;
+ ; tmp5 = tmp5 * (2.053119869 - 2.562915447) + tmp6 * -2.562915447;
+ ; tmp6 = tmp5 * -2.562915447 + tmp6 * (3.072711026 - 2.562915447);
+ ; tmp7 = tmp4 * -0.899976223 + tmp7 * (1.501321110 - 0.899976223);
+ ; data7 = tmp4 + z3; data5 = tmp5 + z4;
+ ; data3 = tmp6 + z3; data1 = tmp7 + z4;
+
+ movq mm4, mm2
+ movq mm1, mm2
+ punpcklwd mm4, mm7
+ punpckhwd mm1, mm7
+ movq mm2, mm4
+ movq mm7, mm1
+ pmaddwd mm4, [GOTOFF(ebx,PW_MF060_MF089)] ; mm4=tmp4L
+ pmaddwd mm1, [GOTOFF(ebx,PW_MF060_MF089)] ; mm1=tmp4H
+ pmaddwd mm2, [GOTOFF(ebx,PW_MF089_F060)] ; mm2=tmp7L
+ pmaddwd mm7, [GOTOFF(ebx,PW_MF089_F060)] ; mm7=tmp7H
+
+ paddd mm4, MMWORD [wk(0)] ; mm4=data7L
+ paddd mm1, MMWORD [wk(1)] ; mm1=data7H
+ paddd mm2, mm0 ; mm2=data1L
+ paddd mm7, mm6 ; mm7=data1H
+
+ paddd mm4, [GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd mm1, [GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad mm4, DESCALE_P1
+ psrad mm1, DESCALE_P1
+ paddd mm2, [GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd mm7, [GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad mm2, DESCALE_P1
+ psrad mm7, DESCALE_P1
+
+ packssdw mm4, mm1 ; mm4=data7
+ packssdw mm2, mm7 ; mm2=data1
+
+ movq MMWORD [MMBLOCK(3,1,edx,SIZEOF_DCTELEM)], mm4
+ movq MMWORD [MMBLOCK(1,0,edx,SIZEOF_DCTELEM)], mm2
+
+ movq mm1, mm3
+ movq mm7, mm3
+ punpcklwd mm1, mm5
+ punpckhwd mm7, mm5
+ movq mm3, mm1
+ movq mm5, mm7
+ pmaddwd mm1, [GOTOFF(ebx,PW_MF050_MF256)] ; mm1=tmp5L
+ pmaddwd mm7, [GOTOFF(ebx,PW_MF050_MF256)] ; mm7=tmp5H
+ pmaddwd mm3, [GOTOFF(ebx,PW_MF256_F050)] ; mm3=tmp6L
+ pmaddwd mm5, [GOTOFF(ebx,PW_MF256_F050)] ; mm5=tmp6H
+
+ paddd mm1, mm0 ; mm1=data5L
+ paddd mm7, mm6 ; mm7=data5H
+ paddd mm3, MMWORD [wk(0)] ; mm3=data3L
+ paddd mm5, MMWORD [wk(1)] ; mm5=data3H
+
+ paddd mm1, [GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd mm7, [GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad mm1, DESCALE_P1
+ psrad mm7, DESCALE_P1
+ paddd mm3, [GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd mm5, [GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad mm3, DESCALE_P1
+ psrad mm5, DESCALE_P1
+
+ packssdw mm1, mm7 ; mm1=data5
+ packssdw mm3, mm5 ; mm3=data3
+
+ movq MMWORD [MMBLOCK(1,1,edx,SIZEOF_DCTELEM)], mm1
+ movq MMWORD [MMBLOCK(3,0,edx,SIZEOF_DCTELEM)], mm3
+
+ add edx, byte 4*DCTSIZE*SIZEOF_DCTELEM
+ dec ecx
+ jnz near .rowloop
+
+ ; ---- Pass 2: process columns.
+
+ mov edx, POINTER [data(eax)] ; (DCTELEM *)
+ mov ecx, DCTSIZE/4
+ alignx 16, 7
+.columnloop:
+
+ movq mm0, MMWORD [MMBLOCK(2,0,edx,SIZEOF_DCTELEM)]
+ movq mm1, MMWORD [MMBLOCK(3,0,edx,SIZEOF_DCTELEM)]
+ movq mm2, MMWORD [MMBLOCK(6,0,edx,SIZEOF_DCTELEM)]
+ movq mm3, MMWORD [MMBLOCK(7,0,edx,SIZEOF_DCTELEM)]
+
+ ; mm0=(02 12 22 32), mm2=(42 52 62 72)
+ ; mm1=(03 13 23 33), mm3=(43 53 63 73)
+
+ movq mm4, mm0 ; transpose coefficients(phase 1)
+ punpcklwd mm0, mm1 ; mm0=(02 03 12 13)
+ punpckhwd mm4, mm1 ; mm4=(22 23 32 33)
+ movq mm5, mm2 ; transpose coefficients(phase 1)
+ punpcklwd mm2, mm3 ; mm2=(42 43 52 53)
+ punpckhwd mm5, mm3 ; mm5=(62 63 72 73)
+
+ movq mm6, MMWORD [MMBLOCK(0,0,edx,SIZEOF_DCTELEM)]
+ movq mm7, MMWORD [MMBLOCK(1,0,edx,SIZEOF_DCTELEM)]
+ movq mm1, MMWORD [MMBLOCK(4,0,edx,SIZEOF_DCTELEM)]
+ movq mm3, MMWORD [MMBLOCK(5,0,edx,SIZEOF_DCTELEM)]
+
+ ; mm6=(00 10 20 30), mm1=(40 50 60 70)
+ ; mm7=(01 11 21 31), mm3=(41 51 61 71)
+
+ movq MMWORD [wk(0)], mm4 ; wk(0)=(22 23 32 33)
+ movq MMWORD [wk(1)], mm2 ; wk(1)=(42 43 52 53)
+
+ movq mm4, mm6 ; transpose coefficients(phase 1)
+ punpcklwd mm6, mm7 ; mm6=(00 01 10 11)
+ punpckhwd mm4, mm7 ; mm4=(20 21 30 31)
+ movq mm2, mm1 ; transpose coefficients(phase 1)
+ punpcklwd mm1, mm3 ; mm1=(40 41 50 51)
+ punpckhwd mm2, mm3 ; mm2=(60 61 70 71)
+
+ movq mm7, mm6 ; transpose coefficients(phase 2)
+ punpckldq mm6, mm0 ; mm6=(00 01 02 03)=data0
+ punpckhdq mm7, mm0 ; mm7=(10 11 12 13)=data1
+ movq mm3, mm2 ; transpose coefficients(phase 2)
+ punpckldq mm2, mm5 ; mm2=(60 61 62 63)=data6
+ punpckhdq mm3, mm5 ; mm3=(70 71 72 73)=data7
+
+ movq mm0, mm7
+ movq mm5, mm6
+ psubw mm7, mm2 ; mm7=data1-data6=tmp6
+ psubw mm6, mm3 ; mm6=data0-data7=tmp7
+ paddw mm0, mm2 ; mm0=data1+data6=tmp1
+ paddw mm5, mm3 ; mm5=data0+data7=tmp0
+
+ movq mm2, MMWORD [wk(0)] ; mm2=(22 23 32 33)
+ movq mm3, MMWORD [wk(1)] ; mm3=(42 43 52 53)
+ movq MMWORD [wk(0)], mm7 ; wk(0)=tmp6
+ movq MMWORD [wk(1)], mm6 ; wk(1)=tmp7
+
+ movq mm7, mm4 ; transpose coefficients(phase 2)
+ punpckldq mm4, mm2 ; mm4=(20 21 22 23)=data2
+ punpckhdq mm7, mm2 ; mm7=(30 31 32 33)=data3
+ movq mm6, mm1 ; transpose coefficients(phase 2)
+ punpckldq mm1, mm3 ; mm1=(40 41 42 43)=data4
+ punpckhdq mm6, mm3 ; mm6=(50 51 52 53)=data5
+
+ movq mm2, mm7
+ movq mm3, mm4
+ paddw mm7, mm1 ; mm7=data3+data4=tmp3
+ paddw mm4, mm6 ; mm4=data2+data5=tmp2
+ psubw mm2, mm1 ; mm2=data3-data4=tmp4
+ psubw mm3, mm6 ; mm3=data2-data5=tmp5
+
+ ; -- Even part
+
+ movq mm1, mm5
+ movq mm6, mm0
+ paddw mm5, mm7 ; mm5=tmp10
+ paddw mm0, mm4 ; mm0=tmp11
+ psubw mm1, mm7 ; mm1=tmp13
+ psubw mm6, mm4 ; mm6=tmp12
+
+ movq mm7, mm5
+ paddw mm5, mm0 ; mm5=tmp10+tmp11
+ psubw mm7, mm0 ; mm7=tmp10-tmp11
+
+ paddw mm5, [GOTOFF(ebx,PW_DESCALE_P2X)]
+ paddw mm7, [GOTOFF(ebx,PW_DESCALE_P2X)]
+ psraw mm5, PASS1_BITS ; mm5=data0
+ psraw mm7, PASS1_BITS ; mm7=data4
+
+ movq MMWORD [MMBLOCK(0,0,edx,SIZEOF_DCTELEM)], mm5
+ movq MMWORD [MMBLOCK(4,0,edx,SIZEOF_DCTELEM)], mm7
+
+ ; (Original)
+ ; z1 = (tmp12 + tmp13) * 0.541196100;
+ ; data2 = z1 + tmp13 * 0.765366865;
+ ; data6 = z1 + tmp12 * -1.847759065;
+ ;
+ ; (This implementation)
+ ; data2 = tmp13 * (0.541196100 + 0.765366865) + tmp12 * 0.541196100;
+ ; data6 = tmp13 * 0.541196100 + tmp12 * (0.541196100 - 1.847759065);
+
+ movq mm4, mm1 ; mm1=tmp13
+ movq mm0, mm1
+ punpcklwd mm4, mm6 ; mm6=tmp12
+ punpckhwd mm0, mm6
+ movq mm1, mm4
+ movq mm6, mm0
+ pmaddwd mm4, [GOTOFF(ebx,PW_F130_F054)] ; mm4=data2L
+ pmaddwd mm0, [GOTOFF(ebx,PW_F130_F054)] ; mm0=data2H
+ pmaddwd mm1, [GOTOFF(ebx,PW_F054_MF130)] ; mm1=data6L
+ pmaddwd mm6, [GOTOFF(ebx,PW_F054_MF130)] ; mm6=data6H
+
+ paddd mm4, [GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd mm0, [GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad mm4, DESCALE_P2
+ psrad mm0, DESCALE_P2
+ paddd mm1, [GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd mm6, [GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad mm1, DESCALE_P2
+ psrad mm6, DESCALE_P2
+
+ packssdw mm4, mm0 ; mm4=data2
+ packssdw mm1, mm6 ; mm1=data6
+
+ movq MMWORD [MMBLOCK(2,0,edx,SIZEOF_DCTELEM)], mm4
+ movq MMWORD [MMBLOCK(6,0,edx,SIZEOF_DCTELEM)], mm1
+
+ ; -- Odd part
+
+ movq mm5, MMWORD [wk(0)] ; mm5=tmp6
+ movq mm7, MMWORD [wk(1)] ; mm7=tmp7
+
+ movq mm0, mm2 ; mm2=tmp4
+ movq mm6, mm3 ; mm3=tmp5
+ paddw mm0, mm5 ; mm0=z3
+ paddw mm6, mm7 ; mm6=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);
+
+ movq mm4, mm0
+ movq mm1, mm0
+ punpcklwd mm4, mm6
+ punpckhwd mm1, mm6
+ movq mm0, mm4
+ movq mm6, mm1
+ pmaddwd mm4, [GOTOFF(ebx,PW_MF078_F117)] ; mm4=z3L
+ pmaddwd mm1, [GOTOFF(ebx,PW_MF078_F117)] ; mm1=z3H
+ pmaddwd mm0, [GOTOFF(ebx,PW_F117_F078)] ; mm0=z4L
+ pmaddwd mm6, [GOTOFF(ebx,PW_F117_F078)] ; mm6=z4H
+
+ movq MMWORD [wk(0)], mm4 ; wk(0)=z3L
+ movq MMWORD [wk(1)], mm1 ; wk(1)=z3H
+
+ ; (Original)
+ ; z1 = tmp4 + tmp7; z2 = tmp5 + tmp6;
+ ; tmp4 = tmp4 * 0.298631336; tmp5 = tmp5 * 2.053119869;
+ ; tmp6 = tmp6 * 3.072711026; tmp7 = tmp7 * 1.501321110;
+ ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
+ ; data7 = tmp4 + z1 + z3; data5 = tmp5 + z2 + z4;
+ ; data3 = tmp6 + z2 + z3; data1 = tmp7 + z1 + z4;
+ ;
+ ; (This implementation)
+ ; tmp4 = tmp4 * (0.298631336 - 0.899976223) + tmp7 * -0.899976223;
+ ; tmp5 = tmp5 * (2.053119869 - 2.562915447) + tmp6 * -2.562915447;
+ ; tmp6 = tmp5 * -2.562915447 + tmp6 * (3.072711026 - 2.562915447);
+ ; tmp7 = tmp4 * -0.899976223 + tmp7 * (1.501321110 - 0.899976223);
+ ; data7 = tmp4 + z3; data5 = tmp5 + z4;
+ ; data3 = tmp6 + z3; data1 = tmp7 + z4;
+
+ movq mm4, mm2
+ movq mm1, mm2
+ punpcklwd mm4, mm7
+ punpckhwd mm1, mm7
+ movq mm2, mm4
+ movq mm7, mm1
+ pmaddwd mm4, [GOTOFF(ebx,PW_MF060_MF089)] ; mm4=tmp4L
+ pmaddwd mm1, [GOTOFF(ebx,PW_MF060_MF089)] ; mm1=tmp4H
+ pmaddwd mm2, [GOTOFF(ebx,PW_MF089_F060)] ; mm2=tmp7L
+ pmaddwd mm7, [GOTOFF(ebx,PW_MF089_F060)] ; mm7=tmp7H
+
+ paddd mm4, MMWORD [wk(0)] ; mm4=data7L
+ paddd mm1, MMWORD [wk(1)] ; mm1=data7H
+ paddd mm2, mm0 ; mm2=data1L
+ paddd mm7, mm6 ; mm7=data1H
+
+ paddd mm4, [GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd mm1, [GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad mm4, DESCALE_P2
+ psrad mm1, DESCALE_P2
+ paddd mm2, [GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd mm7, [GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad mm2, DESCALE_P2
+ psrad mm7, DESCALE_P2
+
+ packssdw mm4, mm1 ; mm4=data7
+ packssdw mm2, mm7 ; mm2=data1
+
+ movq MMWORD [MMBLOCK(7,0,edx,SIZEOF_DCTELEM)], mm4
+ movq MMWORD [MMBLOCK(1,0,edx,SIZEOF_DCTELEM)], mm2
+
+ movq mm1, mm3
+ movq mm7, mm3
+ punpcklwd mm1, mm5
+ punpckhwd mm7, mm5
+ movq mm3, mm1
+ movq mm5, mm7
+ pmaddwd mm1, [GOTOFF(ebx,PW_MF050_MF256)] ; mm1=tmp5L
+ pmaddwd mm7, [GOTOFF(ebx,PW_MF050_MF256)] ; mm7=tmp5H
+ pmaddwd mm3, [GOTOFF(ebx,PW_MF256_F050)] ; mm3=tmp6L
+ pmaddwd mm5, [GOTOFF(ebx,PW_MF256_F050)] ; mm5=tmp6H
+
+ paddd mm1, mm0 ; mm1=data5L
+ paddd mm7, mm6 ; mm7=data5H
+ paddd mm3, MMWORD [wk(0)] ; mm3=data3L
+ paddd mm5, MMWORD [wk(1)] ; mm5=data3H
+
+ paddd mm1, [GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd mm7, [GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad mm1, DESCALE_P2
+ psrad mm7, DESCALE_P2
+ paddd mm3, [GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd mm5, [GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad mm3, DESCALE_P2
+ psrad mm5, DESCALE_P2
+
+ packssdw mm1, mm7 ; mm1=data5
+ packssdw mm3, mm5 ; mm3=data3
+
+ movq MMWORD [MMBLOCK(5,0,edx,SIZEOF_DCTELEM)], mm1
+ movq MMWORD [MMBLOCK(3,0,edx,SIZEOF_DCTELEM)], mm3
+
+ add edx, byte 4*SIZEOF_DCTELEM
+ dec ecx
+ jnz near .columnloop
+
+ emms ; empty MMX state
+
+; pop edi ; unused
+; pop esi ; unused
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+ 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
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 03:10:23 +0000