Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 665 insertions, 0 deletions

diff --git a/media/libjpeg/simd/x86_64/jdsample-sse2.asm b/media/libjpeg/simd/x86_64/jdsample-sse2.asm
new file mode 100644
index 0000000000..38dbceec26
--- /dev/null
+++ b/media/libjpeg/simd/x86_64/jdsample-sse2.asm
@@ -0,0 +1,665 @@
+;
+; jdsample.asm - upsampling (64-bit 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
+
+%include "jsimdext.inc"
+
+; --------------------------------------------------------------------------
+    SECTION     SEG_CONST
+
+    alignz      32
+    GLOBAL_DATA(jconst_fancy_upsample_sse2)
+
+EXTN(jconst_fancy_upsample_sse2):
+
+PW_ONE   times 8 dw 1
+PW_TWO   times 8 dw 2
+PW_THREE times 8 dw 3
+PW_SEVEN times 8 dw 7
+PW_EIGHT times 8 dw 8
+
+    alignz      32
+
+; --------------------------------------------------------------------------
+    SECTION     SEG_TEXT
+    BITS        64
+;
+; Fancy processing for the common case of 2:1 horizontal and 1:1 vertical.
+;
+; The upsampling algorithm is linear interpolation between pixel centers,
+; also known as a "triangle filter".  This is a good compromise between
+; speed and visual quality.  The centers of the output pixels are 1/4 and 3/4
+; of the way between input pixel centers.
+;
+; GLOBAL(void)
+; jsimd_h2v1_fancy_upsample_sse2(int max_v_samp_factor,
+;                                JDIMENSION downsampled_width,
+;                                JSAMPARRAY input_data,
+;                                JSAMPARRAY *output_data_ptr);
+;
+
+; r10 = int max_v_samp_factor
+; r11d = JDIMENSION downsampled_width
+; r12 = JSAMPARRAY input_data
+; r13 = JSAMPARRAY *output_data_ptr
+
+    align       32
+    GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_sse2)
+
+EXTN(jsimd_h2v1_fancy_upsample_sse2):
+    push        rbp
+    mov         rax, rsp
+    mov         rbp, rsp
+    collect_args 4
+
+    mov         eax, r11d               ; colctr
+    test        rax, rax
+    jz          near .return
+
+    mov         rcx, r10                ; rowctr
+    test        rcx, rcx
+    jz          near .return
+
+    mov         rsi, r12                ; input_data
+    mov         rdi, r13
+    mov         rdip, JSAMPARRAY [rdi]  ; output_data
+.rowloop:
+    push        rax                     ; colctr
+    push        rdi
+    push        rsi
+
+    mov         rsip, JSAMPROW [rsi]    ; inptr
+    mov         rdip, JSAMPROW [rdi]    ; outptr
+
+    test        rax, SIZEOF_XMMWORD-1
+    jz          short .skip
+    mov         dl, JSAMPLE [rsi+(rax-1)*SIZEOF_JSAMPLE]
+    mov         JSAMPLE [rsi+rax*SIZEOF_JSAMPLE], dl    ; insert a dummy sample
+.skip:
+    pxor        xmm0, xmm0              ; xmm0=(all 0's)
+    pcmpeqb     xmm7, xmm7
+    psrldq      xmm7, (SIZEOF_XMMWORD-1)
+    pand        xmm7, XMMWORD [rsi+0*SIZEOF_XMMWORD]
+
+    add         rax, byte SIZEOF_XMMWORD-1
+    and         rax, byte -SIZEOF_XMMWORD
+    cmp         rax, byte SIZEOF_XMMWORD
+    ja          short .columnloop
+
+.columnloop_last:
+    pcmpeqb     xmm6, xmm6
+    pslldq      xmm6, (SIZEOF_XMMWORD-1)
+    pand        xmm6, XMMWORD [rsi+0*SIZEOF_XMMWORD]
+    jmp         short .upsample
+
+.columnloop:
+    movdqa      xmm6, XMMWORD [rsi+1*SIZEOF_XMMWORD]
+    pslldq      xmm6, (SIZEOF_XMMWORD-1)
+
+.upsample:
+    movdqa      xmm1, XMMWORD [rsi+0*SIZEOF_XMMWORD]
+    movdqa      xmm2, xmm1
+    movdqa      xmm3, xmm1                ; xmm1=( 0  1  2 ... 13 14 15)
+    pslldq      xmm2, 1                   ; xmm2=(--  0  1 ... 12 13 14)
+    psrldq      xmm3, 1                   ; xmm3=( 1  2  3 ... 14 15 --)
+
+    por         xmm2, xmm7                ; xmm2=(-1  0  1 ... 12 13 14)
+    por         xmm3, xmm6                ; xmm3=( 1  2  3 ... 14 15 16)
+
+    movdqa      xmm7, xmm1
+    psrldq      xmm7, (SIZEOF_XMMWORD-1)  ; xmm7=(15 -- -- ... -- -- --)
+
+    movdqa      xmm4, xmm1
+    punpcklbw   xmm1, xmm0                ; xmm1=( 0  1  2  3  4  5  6  7)
+    punpckhbw   xmm4, xmm0                ; xmm4=( 8  9 10 11 12 13 14 15)
+    movdqa      xmm5, xmm2
+    punpcklbw   xmm2, xmm0                ; xmm2=(-1  0  1  2  3  4  5  6)
+    punpckhbw   xmm5, xmm0                ; xmm5=( 7  8  9 10 11 12 13 14)
+    movdqa      xmm6, xmm3
+    punpcklbw   xmm3, xmm0                ; xmm3=( 1  2  3  4  5  6  7  8)
+    punpckhbw   xmm6, xmm0                ; xmm6=( 9 10 11 12 13 14 15 16)
+
+    pmullw      xmm1, [rel PW_THREE]
+    pmullw      xmm4, [rel PW_THREE]
+    paddw       xmm2, [rel PW_ONE]
+    paddw       xmm5, [rel PW_ONE]
+    paddw       xmm3, [rel PW_TWO]
+    paddw       xmm6, [rel PW_TWO]
+
+    paddw       xmm2, xmm1
+    paddw       xmm5, xmm4
+    psrlw       xmm2, 2                 ; xmm2=OutLE=( 0  2  4  6  8 10 12 14)
+    psrlw       xmm5, 2                 ; xmm5=OutHE=(16 18 20 22 24 26 28 30)
+    paddw       xmm3, xmm1
+    paddw       xmm6, xmm4
+    psrlw       xmm3, 2                 ; xmm3=OutLO=( 1  3  5  7  9 11 13 15)
+    psrlw       xmm6, 2                 ; xmm6=OutHO=(17 19 21 23 25 27 29 31)
+
+    psllw       xmm3, BYTE_BIT
+    psllw       xmm6, BYTE_BIT
+    por         xmm2, xmm3              ; xmm2=OutL=( 0  1  2 ... 13 14 15)
+    por         xmm5, xmm6              ; xmm5=OutH=(16 17 18 ... 29 30 31)
+
+    movdqa      XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm2
+    movdqa      XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm5
+
+    sub         rax, byte SIZEOF_XMMWORD
+    add         rsi, byte 1*SIZEOF_XMMWORD  ; inptr
+    add         rdi, byte 2*SIZEOF_XMMWORD  ; outptr
+    cmp         rax, byte SIZEOF_XMMWORD
+    ja          near .columnloop
+    test        eax, eax
+    jnz         near .columnloop_last
+
+    pop         rsi
+    pop         rdi
+    pop         rax
+
+    add         rsi, byte SIZEOF_JSAMPROW  ; input_data
+    add         rdi, byte SIZEOF_JSAMPROW  ; output_data
+    dec         rcx                        ; rowctr
+    jg          near .rowloop
+
+.return:
+    uncollect_args 4
+    pop         rbp
+    ret
+
+; --------------------------------------------------------------------------
+;
+; Fancy processing for the common case of 2:1 horizontal and 2:1 vertical.
+; Again a triangle filter; see comments for h2v1 case, above.
+;
+; GLOBAL(void)
+; jsimd_h2v2_fancy_upsample_sse2(int max_v_samp_factor,
+;                                JDIMENSION downsampled_width,
+;                                JSAMPARRAY input_data,
+;                                JSAMPARRAY *output_data_ptr);
+;
+
+; r10 = int max_v_samp_factor
+; r11d = JDIMENSION downsampled_width
+; r12 = JSAMPARRAY input_data
+; r13 = JSAMPARRAY *output_data_ptr
+
+%define wk(i)   rbp - (WK_NUM - (i)) * SIZEOF_XMMWORD  ; xmmword wk[WK_NUM]
+%define WK_NUM  4
+
+    align       32
+    GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_sse2)
+
+EXTN(jsimd_h2v2_fancy_upsample_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, [wk(0)]
+    collect_args 4
+    push        rbx
+
+    mov         eax, r11d               ; colctr
+    test        rax, rax
+    jz          near .return
+
+    mov         rcx, r10                ; rowctr
+    test        rcx, rcx
+    jz          near .return
+
+    mov         rsi, r12                ; input_data
+    mov         rdi, r13
+    mov         rdip, JSAMPARRAY [rdi]  ; output_data
+.rowloop:
+    push        rax                     ; colctr
+    push        rcx
+    push        rdi
+    push        rsi
+
+    mov         rcxp, JSAMPROW [rsi-1*SIZEOF_JSAMPROW]  ; inptr1(above)
+    mov         rbxp, JSAMPROW [rsi+0*SIZEOF_JSAMPROW]  ; inptr0
+    mov         rsip, JSAMPROW [rsi+1*SIZEOF_JSAMPROW]  ; inptr1(below)
+    mov         rdxp, JSAMPROW [rdi+0*SIZEOF_JSAMPROW]  ; outptr0
+    mov         rdip, JSAMPROW [rdi+1*SIZEOF_JSAMPROW]  ; outptr1
+
+    test        rax, SIZEOF_XMMWORD-1
+    jz          short .skip
+    push        rdx
+    mov         dl, JSAMPLE [rcx+(rax-1)*SIZEOF_JSAMPLE]
+    mov         JSAMPLE [rcx+rax*SIZEOF_JSAMPLE], dl
+    mov         dl, JSAMPLE [rbx+(rax-1)*SIZEOF_JSAMPLE]
+    mov         JSAMPLE [rbx+rax*SIZEOF_JSAMPLE], dl
+    mov         dl, JSAMPLE [rsi+(rax-1)*SIZEOF_JSAMPLE]
+    mov         JSAMPLE [rsi+rax*SIZEOF_JSAMPLE], dl    ; insert a dummy sample
+    pop         rdx
+.skip:
+    ; -- process the first column block
+
+    movdqa      xmm0, XMMWORD [rbx+0*SIZEOF_XMMWORD]  ; xmm0=row[ 0][0]
+    movdqa      xmm1, XMMWORD [rcx+0*SIZEOF_XMMWORD]  ; xmm1=row[-1][0]
+    movdqa      xmm2, XMMWORD [rsi+0*SIZEOF_XMMWORD]  ; xmm2=row[+1][0]
+
+    pxor        xmm3, xmm3              ; xmm3=(all 0's)
+    movdqa      xmm4, xmm0
+    punpcklbw   xmm0, xmm3              ; xmm0=row[ 0]( 0  1  2  3  4  5  6  7)
+    punpckhbw   xmm4, xmm3              ; xmm4=row[ 0]( 8  9 10 11 12 13 14 15)
+    movdqa      xmm5, xmm1
+    punpcklbw   xmm1, xmm3              ; xmm1=row[-1]( 0  1  2  3  4  5  6  7)
+    punpckhbw   xmm5, xmm3              ; xmm5=row[-1]( 8  9 10 11 12 13 14 15)
+    movdqa      xmm6, xmm2
+    punpcklbw   xmm2, xmm3              ; xmm2=row[+1]( 0  1  2  3  4  5  6  7)
+    punpckhbw   xmm6, xmm3              ; xmm6=row[+1]( 8  9 10 11 12 13 14 15)
+
+    pmullw      xmm0, [rel PW_THREE]
+    pmullw      xmm4, [rel PW_THREE]
+
+    pcmpeqb     xmm7, xmm7
+    psrldq      xmm7, (SIZEOF_XMMWORD-2)
+
+    paddw       xmm1, xmm0              ; xmm1=Int0L=( 0  1  2  3  4  5  6  7)
+    paddw       xmm5, xmm4              ; xmm5=Int0H=( 8  9 10 11 12 13 14 15)
+    paddw       xmm2, xmm0              ; xmm2=Int1L=( 0  1  2  3  4  5  6  7)
+    paddw       xmm6, xmm4              ; xmm6=Int1H=( 8  9 10 11 12 13 14 15)
+
+    movdqa      XMMWORD [rdx+0*SIZEOF_XMMWORD], xmm1  ; temporarily save
+    movdqa      XMMWORD [rdx+1*SIZEOF_XMMWORD], xmm5  ; the intermediate data
+    movdqa      XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm2
+    movdqa      XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm6
+
+    pand        xmm1, xmm7              ; xmm1=( 0 -- -- -- -- -- -- --)
+    pand        xmm2, xmm7              ; xmm2=( 0 -- -- -- -- -- -- --)
+
+    movdqa      XMMWORD [wk(0)], xmm1
+    movdqa      XMMWORD [wk(1)], xmm2
+
+    add         rax, byte SIZEOF_XMMWORD-1
+    and         rax, byte -SIZEOF_XMMWORD
+    cmp         rax, byte SIZEOF_XMMWORD
+    ja          short .columnloop
+
+.columnloop_last:
+    ; -- process the last column block
+
+    pcmpeqb     xmm1, xmm1
+    pslldq      xmm1, (SIZEOF_XMMWORD-2)
+    movdqa      xmm2, xmm1
+
+    pand        xmm1, XMMWORD [rdx+1*SIZEOF_XMMWORD]
+    pand        xmm2, XMMWORD [rdi+1*SIZEOF_XMMWORD]
+
+    movdqa      XMMWORD [wk(2)], xmm1   ; xmm1=(-- -- -- -- -- -- -- 15)
+    movdqa      XMMWORD [wk(3)], xmm2   ; xmm2=(-- -- -- -- -- -- -- 15)
+
+    jmp         near .upsample
+
+.columnloop:
+    ; -- process the next column block
+
+    movdqa      xmm0, XMMWORD [rbx+1*SIZEOF_XMMWORD]  ; xmm0=row[ 0][1]
+    movdqa      xmm1, XMMWORD [rcx+1*SIZEOF_XMMWORD]  ; xmm1=row[-1][1]
+    movdqa      xmm2, XMMWORD [rsi+1*SIZEOF_XMMWORD]  ; xmm2=row[+1][1]
+
+    pxor        xmm3, xmm3              ; xmm3=(all 0's)
+    movdqa      xmm4, xmm0
+    punpcklbw   xmm0, xmm3              ; xmm0=row[ 0]( 0  1  2  3  4  5  6  7)
+    punpckhbw   xmm4, xmm3              ; xmm4=row[ 0]( 8  9 10 11 12 13 14 15)
+    movdqa      xmm5, xmm1
+    punpcklbw   xmm1, xmm3              ; xmm1=row[-1]( 0  1  2  3  4  5  6  7)
+    punpckhbw   xmm5, xmm3              ; xmm5=row[-1]( 8  9 10 11 12 13 14 15)
+    movdqa      xmm6, xmm2
+    punpcklbw   xmm2, xmm3              ; xmm2=row[+1]( 0  1  2  3  4  5  6  7)
+    punpckhbw   xmm6, xmm3              ; xmm6=row[+1]( 8  9 10 11 12 13 14 15)
+
+    pmullw      xmm0, [rel PW_THREE]
+    pmullw      xmm4, [rel PW_THREE]
+
+    paddw       xmm1, xmm0              ; xmm1=Int0L=( 0  1  2  3  4  5  6  7)
+    paddw       xmm5, xmm4              ; xmm5=Int0H=( 8  9 10 11 12 13 14 15)
+    paddw       xmm2, xmm0              ; xmm2=Int1L=( 0  1  2  3  4  5  6  7)
+    paddw       xmm6, xmm4              ; xmm6=Int1H=( 8  9 10 11 12 13 14 15)
+
+    movdqa      XMMWORD [rdx+2*SIZEOF_XMMWORD], xmm1  ; temporarily save
+    movdqa      XMMWORD [rdx+3*SIZEOF_XMMWORD], xmm5  ; the intermediate data
+    movdqa      XMMWORD [rdi+2*SIZEOF_XMMWORD], xmm2
+    movdqa      XMMWORD [rdi+3*SIZEOF_XMMWORD], xmm6
+
+    pslldq      xmm1, (SIZEOF_XMMWORD-2)  ; xmm1=(-- -- -- -- -- -- --  0)
+    pslldq      xmm2, (SIZEOF_XMMWORD-2)  ; xmm2=(-- -- -- -- -- -- --  0)
+
+    movdqa      XMMWORD [wk(2)], xmm1
+    movdqa      XMMWORD [wk(3)], xmm2
+
+.upsample:
+    ; -- process the upper row
+
+    movdqa      xmm7, XMMWORD [rdx+0*SIZEOF_XMMWORD]
+    movdqa      xmm3, XMMWORD [rdx+1*SIZEOF_XMMWORD]
+
+    movdqa      xmm0, xmm7                ; xmm7=Int0L=( 0  1  2  3  4  5  6  7)
+    movdqa      xmm4, xmm3                ; xmm3=Int0H=( 8  9 10 11 12 13 14 15)
+    psrldq      xmm0, 2                   ; xmm0=( 1  2  3  4  5  6  7 --)
+    pslldq      xmm4, (SIZEOF_XMMWORD-2)  ; xmm4=(-- -- -- -- -- -- --  8)
+    movdqa      xmm5, xmm7
+    movdqa      xmm6, xmm3
+    psrldq      xmm5, (SIZEOF_XMMWORD-2)  ; xmm5=( 7 -- -- -- -- -- -- --)
+    pslldq      xmm6, 2                   ; xmm6=(--  8  9 10 11 12 13 14)
+
+    por         xmm0, xmm4                ; xmm0=( 1  2  3  4  5  6  7  8)
+    por         xmm5, xmm6                ; xmm5=( 7  8  9 10 11 12 13 14)
+
+    movdqa      xmm1, xmm7
+    movdqa      xmm2, xmm3
+    pslldq      xmm1, 2                   ; xmm1=(--  0  1  2  3  4  5  6)
+    psrldq      xmm2, 2                   ; xmm2=( 9 10 11 12 13 14 15 --)
+    movdqa      xmm4, xmm3
+    psrldq      xmm4, (SIZEOF_XMMWORD-2)  ; xmm4=(15 -- -- -- -- -- -- --)
+
+    por         xmm1, XMMWORD [wk(0)]     ; xmm1=(-1  0  1  2  3  4  5  6)
+    por         xmm2, XMMWORD [wk(2)]     ; xmm2=( 9 10 11 12 13 14 15 16)
+
+    movdqa      XMMWORD [wk(0)], xmm4
+
+    pmullw      xmm7, [rel PW_THREE]
+    pmullw      xmm3, [rel PW_THREE]
+    paddw       xmm1, [rel PW_EIGHT]
+    paddw       xmm5, [rel PW_EIGHT]
+    paddw       xmm0, [rel PW_SEVEN]
+    paddw       xmm2, [rel PW_SEVEN]
+
+    paddw       xmm1, xmm7
+    paddw       xmm5, xmm3
+    psrlw       xmm1, 4                 ; xmm1=Out0LE=( 0  2  4  6  8 10 12 14)
+    psrlw       xmm5, 4                 ; xmm5=Out0HE=(16 18 20 22 24 26 28 30)
+    paddw       xmm0, xmm7
+    paddw       xmm2, xmm3
+    psrlw       xmm0, 4                 ; xmm0=Out0LO=( 1  3  5  7  9 11 13 15)
+    psrlw       xmm2, 4                 ; xmm2=Out0HO=(17 19 21 23 25 27 29 31)
+
+    psllw       xmm0, BYTE_BIT
+    psllw       xmm2, BYTE_BIT
+    por         xmm1, xmm0              ; xmm1=Out0L=( 0  1  2 ... 13 14 15)
+    por         xmm5, xmm2              ; xmm5=Out0H=(16 17 18 ... 29 30 31)
+
+    movdqa      XMMWORD [rdx+0*SIZEOF_XMMWORD], xmm1
+    movdqa      XMMWORD [rdx+1*SIZEOF_XMMWORD], xmm5
+
+    ; -- process the lower row
+
+    movdqa      xmm6, XMMWORD [rdi+0*SIZEOF_XMMWORD]
+    movdqa      xmm4, XMMWORD [rdi+1*SIZEOF_XMMWORD]
+
+    movdqa      xmm7, xmm6                ; xmm6=Int1L=( 0  1  2  3  4  5  6  7)
+    movdqa      xmm3, xmm4                ; xmm4=Int1H=( 8  9 10 11 12 13 14 15)
+    psrldq      xmm7, 2                   ; xmm7=( 1  2  3  4  5  6  7 --)
+    pslldq      xmm3, (SIZEOF_XMMWORD-2)  ; xmm3=(-- -- -- -- -- -- --  8)
+    movdqa      xmm0, xmm6
+    movdqa      xmm2, xmm4
+    psrldq      xmm0, (SIZEOF_XMMWORD-2)  ; xmm0=( 7 -- -- -- -- -- -- --)
+    pslldq      xmm2, 2                   ; xmm2=(--  8  9 10 11 12 13 14)
+
+    por         xmm7, xmm3                ; xmm7=( 1  2  3  4  5  6  7  8)
+    por         xmm0, xmm2                ; xmm0=( 7  8  9 10 11 12 13 14)
+
+    movdqa      xmm1, xmm6
+    movdqa      xmm5, xmm4
+    pslldq      xmm1, 2                   ; xmm1=(--  0  1  2  3  4  5  6)
+    psrldq      xmm5, 2                   ; xmm5=( 9 10 11 12 13 14 15 --)
+    movdqa      xmm3, xmm4
+    psrldq      xmm3, (SIZEOF_XMMWORD-2)  ; xmm3=(15 -- -- -- -- -- -- --)
+
+    por         xmm1, XMMWORD [wk(1)]     ; xmm1=(-1  0  1  2  3  4  5  6)
+    por         xmm5, XMMWORD [wk(3)]     ; xmm5=( 9 10 11 12 13 14 15 16)
+
+    movdqa      XMMWORD [wk(1)], xmm3
+
+    pmullw      xmm6, [rel PW_THREE]
+    pmullw      xmm4, [rel PW_THREE]
+    paddw       xmm1, [rel PW_EIGHT]
+    paddw       xmm0, [rel PW_EIGHT]
+    paddw       xmm7, [rel PW_SEVEN]
+    paddw       xmm5, [rel PW_SEVEN]
+
+    paddw       xmm1, xmm6
+    paddw       xmm0, xmm4
+    psrlw       xmm1, 4                 ; xmm1=Out1LE=( 0  2  4  6  8 10 12 14)
+    psrlw       xmm0, 4                 ; xmm0=Out1HE=(16 18 20 22 24 26 28 30)
+    paddw       xmm7, xmm6
+    paddw       xmm5, xmm4
+    psrlw       xmm7, 4                 ; xmm7=Out1LO=( 1  3  5  7  9 11 13 15)
+    psrlw       xmm5, 4                 ; xmm5=Out1HO=(17 19 21 23 25 27 29 31)
+
+    psllw       xmm7, BYTE_BIT
+    psllw       xmm5, BYTE_BIT
+    por         xmm1, xmm7              ; xmm1=Out1L=( 0  1  2 ... 13 14 15)
+    por         xmm0, xmm5              ; xmm0=Out1H=(16 17 18 ... 29 30 31)
+
+    movdqa      XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm1
+    movdqa      XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm0
+
+    sub         rax, byte SIZEOF_XMMWORD
+    add         rcx, byte 1*SIZEOF_XMMWORD  ; inptr1(above)
+    add         rbx, byte 1*SIZEOF_XMMWORD  ; inptr0
+    add         rsi, byte 1*SIZEOF_XMMWORD  ; inptr1(below)
+    add         rdx, byte 2*SIZEOF_XMMWORD  ; outptr0
+    add         rdi, byte 2*SIZEOF_XMMWORD  ; outptr1
+    cmp         rax, byte SIZEOF_XMMWORD
+    ja          near .columnloop
+    test        rax, rax
+    jnz         near .columnloop_last
+
+    pop         rsi
+    pop         rdi
+    pop         rcx
+    pop         rax
+
+    add         rsi, byte 1*SIZEOF_JSAMPROW  ; input_data
+    add         rdi, byte 2*SIZEOF_JSAMPROW  ; output_data
+    sub         rcx, byte 2                  ; rowctr
+    jg          near .rowloop
+
+.return:
+    pop         rbx
+    uncollect_args 4
+    mov         rsp, rbp                ; rsp <- aligned rbp
+    pop         rsp                     ; rsp <- original rbp
+    pop         rbp
+    ret
+
+; --------------------------------------------------------------------------
+;
+; Fast processing for the common case of 2:1 horizontal and 1:1 vertical.
+; It's still a box filter.
+;
+; GLOBAL(void)
+; jsimd_h2v1_upsample_sse2(int max_v_samp_factor, JDIMENSION output_width,
+;                          JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
+;
+
+; r10 = int max_v_samp_factor
+; r11d = JDIMENSION output_width
+; r12 = JSAMPARRAY input_data
+; r13 = JSAMPARRAY *output_data_ptr
+
+    align       32
+    GLOBAL_FUNCTION(jsimd_h2v1_upsample_sse2)
+
+EXTN(jsimd_h2v1_upsample_sse2):
+    push        rbp
+    mov         rax, rsp
+    mov         rbp, rsp
+    collect_args 4
+
+    mov         edx, r11d
+    add         rdx, byte (2*SIZEOF_XMMWORD)-1
+    and         rdx, byte -(2*SIZEOF_XMMWORD)
+    jz          near .return
+
+    mov         rcx, r10                ; rowctr
+    test        rcx, rcx
+    jz          short .return
+
+    mov         rsi, r12                ; input_data
+    mov         rdi, r13
+    mov         rdip, JSAMPARRAY [rdi]  ; output_data
+.rowloop:
+    push        rdi
+    push        rsi
+
+    mov         rsip, JSAMPROW [rsi]    ; inptr
+    mov         rdip, JSAMPROW [rdi]    ; outptr
+    mov         rax, rdx                ; colctr
+.columnloop:
+
+    movdqa      xmm0, XMMWORD [rsi+0*SIZEOF_XMMWORD]
+
+    movdqa      xmm1, xmm0
+    punpcklbw   xmm0, xmm0
+    punpckhbw   xmm1, xmm1
+
+    movdqa      XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm0
+    movdqa      XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm1
+
+    sub         rax, byte 2*SIZEOF_XMMWORD
+    jz          short .nextrow
+
+    movdqa      xmm2, XMMWORD [rsi+1*SIZEOF_XMMWORD]
+
+    movdqa      xmm3, xmm2
+    punpcklbw   xmm2, xmm2
+    punpckhbw   xmm3, xmm3
+
+    movdqa      XMMWORD [rdi+2*SIZEOF_XMMWORD], xmm2
+    movdqa      XMMWORD [rdi+3*SIZEOF_XMMWORD], xmm3
+
+    sub         rax, byte 2*SIZEOF_XMMWORD
+    jz          short .nextrow
+
+    add         rsi, byte 2*SIZEOF_XMMWORD  ; inptr
+    add         rdi, byte 4*SIZEOF_XMMWORD  ; outptr
+    jmp         short .columnloop
+
+.nextrow:
+    pop         rsi
+    pop         rdi
+
+    add         rsi, byte SIZEOF_JSAMPROW  ; input_data
+    add         rdi, byte SIZEOF_JSAMPROW  ; output_data
+    dec         rcx                        ; rowctr
+    jg          short .rowloop
+
+.return:
+    uncollect_args 4
+    pop         rbp
+    ret
+
+; --------------------------------------------------------------------------
+;
+; Fast processing for the common case of 2:1 horizontal and 2:1 vertical.
+; It's still a box filter.
+;
+; GLOBAL(void)
+; jsimd_h2v2_upsample_sse2(int max_v_samp_factor, JDIMENSION output_width,
+;                          JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
+;
+
+; r10 = int max_v_samp_factor
+; r11d = JDIMENSION output_width
+; r12 = JSAMPARRAY input_data
+; r13 = JSAMPARRAY *output_data_ptr
+
+    align       32
+    GLOBAL_FUNCTION(jsimd_h2v2_upsample_sse2)
+
+EXTN(jsimd_h2v2_upsample_sse2):
+    push        rbp
+    mov         rax, rsp
+    mov         rbp, rsp
+    collect_args 4
+    push        rbx
+
+    mov         edx, r11d
+    add         rdx, byte (2*SIZEOF_XMMWORD)-1
+    and         rdx, byte -(2*SIZEOF_XMMWORD)
+    jz          near .return
+
+    mov         rcx, r10                ; rowctr
+    test        rcx, rcx
+    jz          near .return
+
+    mov         rsi, r12                ; input_data
+    mov         rdi, r13
+    mov         rdip, JSAMPARRAY [rdi]  ; output_data
+.rowloop:
+    push        rdi
+    push        rsi
+
+    mov         rsip, JSAMPROW [rsi]                   ; inptr
+    mov         rbxp, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] ; outptr0
+    mov         rdip, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] ; outptr1
+    mov         rax, rdx                               ; colctr
+.columnloop:
+
+    movdqa      xmm0, XMMWORD [rsi+0*SIZEOF_XMMWORD]
+
+    movdqa      xmm1, xmm0
+    punpcklbw   xmm0, xmm0
+    punpckhbw   xmm1, xmm1
+
+    movdqa      XMMWORD [rbx+0*SIZEOF_XMMWORD], xmm0
+    movdqa      XMMWORD [rbx+1*SIZEOF_XMMWORD], xmm1
+    movdqa      XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm0
+    movdqa      XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm1
+
+    sub         rax, byte 2*SIZEOF_XMMWORD
+    jz          short .nextrow
+
+    movdqa      xmm2, XMMWORD [rsi+1*SIZEOF_XMMWORD]
+
+    movdqa      xmm3, xmm2
+    punpcklbw   xmm2, xmm2
+    punpckhbw   xmm3, xmm3
+
+    movdqa      XMMWORD [rbx+2*SIZEOF_XMMWORD], xmm2
+    movdqa      XMMWORD [rbx+3*SIZEOF_XMMWORD], xmm3
+    movdqa      XMMWORD [rdi+2*SIZEOF_XMMWORD], xmm2
+    movdqa      XMMWORD [rdi+3*SIZEOF_XMMWORD], xmm3
+
+    sub         rax, byte 2*SIZEOF_XMMWORD
+    jz          short .nextrow
+
+    add         rsi, byte 2*SIZEOF_XMMWORD  ; inptr
+    add         rbx, byte 4*SIZEOF_XMMWORD  ; outptr0
+    add         rdi, byte 4*SIZEOF_XMMWORD  ; outptr1
+    jmp         short .columnloop
+
+.nextrow:
+    pop         rsi
+    pop         rdi
+
+    add         rsi, byte 1*SIZEOF_JSAMPROW  ; input_data
+    add         rdi, byte 2*SIZEOF_JSAMPROW  ; output_data
+    sub         rcx, byte 2                  ; rowctr
+    jg          near .rowloop
+
+.return:
+    pop         rbx
+    uncollect_args 4
+    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