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mozjpeg/simd/jdmrgext-sse2-64.asm
DRC 123f7258a8 Format copyright headers more consistently 
The IJG convention is to format copyright notices as:

Copyright (C) YYYY, Owner.

We try to maintain this convention for any code that is part of the
libjpeg API library (with the exception of preserving the copyright
notices from Cendio's code verbatim, since those predate
libjpeg-turbo.)

Note that the phrase "All Rights Reserved" is no longer necessary, since
all Buenos Aires Convention signatories signed onto the Berne Convention
in 2000.  However, our convention is to retain this phrase for any files
that have a self-contained copyright header but to leave it off of any
files that refer to another file for conditions of distribution and use.
For instance, all of the non-SIMD files in the libjpeg API library refer
to README.ijg, and the copyright message in that file contains "All
Rights Reserved", so it is unnecessary to add it to the individual
files.

The TurboJPEG code retains my preferred formatting convention for
copyright notices, which is based on that of VirtualGL (where the
TurboJPEG API originated.)
2016-05-28 19:16:58 -05:00

538 lines
20 KiB
NASM
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;
; jdmrgext.asm - merged upsampling/color conversion (64-bit SSE2)
;
; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB
; Copyright (C) 2009, 2012, 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
;
; [TAB8]
%include "jcolsamp.inc"
; --------------------------------------------------------------------------
;
; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
;
; GLOBAL(void)
; jsimd_h2v1_merged_upsample_sse2 (JDIMENSION output_width,
; JSAMPIMAGE input_buf,
; JDIMENSION in_row_group_ctr,
; JSAMPARRAY output_buf);
;
; r10 = JDIMENSION output_width
; r11 = JSAMPIMAGE input_buf
; r12 = JDIMENSION in_row_group_ctr
; r13 = JSAMPARRAY output_buf
%define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
%define WK_NUM 3
align 16
global EXTN(jsimd_h2v1_merged_upsample_sse2)
EXTN(jsimd_h2v1_merged_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
push rbx
mov ecx, r10d ; col
test rcx,rcx
jz near .return
push rcx
mov rdi, r11
mov ecx, r12d
mov rsi, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY]
mov rbx, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY]
mov rdx, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY]
mov rdi, r13
mov rsi, JSAMPROW [rsi+rcx*SIZEOF_JSAMPROW] ; inptr0
mov rbx, JSAMPROW [rbx+rcx*SIZEOF_JSAMPROW] ; inptr1
mov rdx, JSAMPROW [rdx+rcx*SIZEOF_JSAMPROW] ; inptr2
mov rdi, JSAMPROW [rdi] ; outptr
pop rcx ; col
.columnloop:
movdqa xmm6, XMMWORD [rbx] ; xmm6=Cb(0123456789ABCDEF)
movdqa xmm7, XMMWORD [rdx] ; xmm7=Cr(0123456789ABCDEF)
pxor xmm1,xmm1 ; xmm1=(all 0's)
pcmpeqw xmm3,xmm3
psllw xmm3,7 ; xmm3={0xFF80 0xFF80 0xFF80 0xFF80 ..}
movdqa xmm4,xmm6
punpckhbw xmm6,xmm1 ; xmm6=Cb(89ABCDEF)=CbH
punpcklbw xmm4,xmm1 ; xmm4=Cb(01234567)=CbL
movdqa xmm0,xmm7
punpckhbw xmm7,xmm1 ; xmm7=Cr(89ABCDEF)=CrH
punpcklbw xmm0,xmm1 ; xmm0=Cr(01234567)=CrL
paddw xmm6,xmm3
paddw xmm4,xmm3
paddw xmm7,xmm3
paddw xmm0,xmm3
; (Original)
; R = Y + 1.40200 * Cr
; G = Y - 0.34414 * Cb - 0.71414 * Cr
; B = Y + 1.77200 * Cb
;
; (This implementation)
; R = Y + 0.40200 * Cr + Cr
; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
; B = Y - 0.22800 * Cb + Cb + Cb
movdqa xmm5,xmm6 ; xmm5=CbH
movdqa xmm2,xmm4 ; xmm2=CbL
paddw xmm6,xmm6 ; xmm6=2*CbH
paddw xmm4,xmm4 ; xmm4=2*CbL
movdqa xmm1,xmm7 ; xmm1=CrH
movdqa xmm3,xmm0 ; xmm3=CrL
paddw xmm7,xmm7 ; xmm7=2*CrH
paddw xmm0,xmm0 ; xmm0=2*CrL
pmulhw xmm6,[rel PW_MF0228] ; xmm6=(2*CbH * -FIX(0.22800))
pmulhw xmm4,[rel PW_MF0228] ; xmm4=(2*CbL * -FIX(0.22800))
pmulhw xmm7,[rel PW_F0402] ; xmm7=(2*CrH * FIX(0.40200))
pmulhw xmm0,[rel PW_F0402] ; xmm0=(2*CrL * FIX(0.40200))
paddw xmm6,[rel PW_ONE]
paddw xmm4,[rel PW_ONE]
psraw xmm6,1 ; xmm6=(CbH * -FIX(0.22800))
psraw xmm4,1 ; xmm4=(CbL * -FIX(0.22800))
paddw xmm7,[rel PW_ONE]
paddw xmm0,[rel PW_ONE]
psraw xmm7,1 ; xmm7=(CrH * FIX(0.40200))
psraw xmm0,1 ; xmm0=(CrL * FIX(0.40200))
paddw xmm6,xmm5
paddw xmm4,xmm2
paddw xmm6,xmm5 ; xmm6=(CbH * FIX(1.77200))=(B-Y)H
paddw xmm4,xmm2 ; xmm4=(CbL * FIX(1.77200))=(B-Y)L
paddw xmm7,xmm1 ; xmm7=(CrH * FIX(1.40200))=(R-Y)H
paddw xmm0,xmm3 ; xmm0=(CrL * FIX(1.40200))=(R-Y)L
movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=(B-Y)H
movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(R-Y)H
movdqa xmm6,xmm5
movdqa xmm7,xmm2
punpcklwd xmm5,xmm1
punpckhwd xmm6,xmm1
pmaddwd xmm5,[rel PW_MF0344_F0285]
pmaddwd xmm6,[rel PW_MF0344_F0285]
punpcklwd xmm2,xmm3
punpckhwd xmm7,xmm3
pmaddwd xmm2,[rel PW_MF0344_F0285]
pmaddwd xmm7,[rel PW_MF0344_F0285]
paddd xmm5,[rel PD_ONEHALF]
paddd xmm6,[rel PD_ONEHALF]
psrad xmm5,SCALEBITS
psrad xmm6,SCALEBITS
paddd xmm2,[rel PD_ONEHALF]
paddd xmm7,[rel PD_ONEHALF]
psrad xmm2,SCALEBITS
psrad xmm7,SCALEBITS
packssdw xmm5,xmm6 ; xmm5=CbH*-FIX(0.344)+CrH*FIX(0.285)
packssdw xmm2,xmm7 ; xmm2=CbL*-FIX(0.344)+CrL*FIX(0.285)
psubw xmm5,xmm1 ; xmm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H
psubw xmm2,xmm3 ; xmm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L
movdqa XMMWORD [wk(2)], xmm5 ; wk(2)=(G-Y)H
mov al,2 ; Yctr
jmp short .Yloop_1st
.Yloop_2nd:
movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(R-Y)H
movdqa xmm2, XMMWORD [wk(2)] ; xmm2=(G-Y)H
movdqa xmm4, XMMWORD [wk(0)] ; xmm4=(B-Y)H
.Yloop_1st:
movdqa xmm7, XMMWORD [rsi] ; xmm7=Y(0123456789ABCDEF)
pcmpeqw xmm6,xmm6
psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..}
pand xmm6,xmm7 ; xmm6=Y(02468ACE)=YE
psrlw xmm7,BYTE_BIT ; xmm7=Y(13579BDF)=YO
movdqa xmm1,xmm0 ; xmm1=xmm0=(R-Y)(L/H)
movdqa xmm3,xmm2 ; xmm3=xmm2=(G-Y)(L/H)
movdqa xmm5,xmm4 ; xmm5=xmm4=(B-Y)(L/H)
paddw xmm0,xmm6 ; xmm0=((R-Y)+YE)=RE=R(02468ACE)
paddw xmm1,xmm7 ; xmm1=((R-Y)+YO)=RO=R(13579BDF)
packuswb xmm0,xmm0 ; xmm0=R(02468ACE********)
packuswb xmm1,xmm1 ; xmm1=R(13579BDF********)
paddw xmm2,xmm6 ; xmm2=((G-Y)+YE)=GE=G(02468ACE)
paddw xmm3,xmm7 ; xmm3=((G-Y)+YO)=GO=G(13579BDF)
packuswb xmm2,xmm2 ; xmm2=G(02468ACE********)
packuswb xmm3,xmm3 ; xmm3=G(13579BDF********)
paddw xmm4,xmm6 ; xmm4=((B-Y)+YE)=BE=B(02468ACE)
paddw xmm5,xmm7 ; xmm5=((B-Y)+YO)=BO=B(13579BDF)
packuswb xmm4,xmm4 ; xmm4=B(02468ACE********)
packuswb xmm5,xmm5 ; xmm5=B(13579BDF********)
%if RGB_PIXELSIZE == 3 ; ---------------
; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **)
punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
punpcklbw xmmE,xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F)
punpcklbw xmmD,xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F)
movdqa xmmG,xmmA
movdqa xmmH,xmmA
punpcklwd xmmA,xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07)
punpckhwd xmmG,xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F)
psrldq xmmH,2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --)
psrldq xmmE,2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --)
movdqa xmmC,xmmD
movdqa xmmB,xmmD
punpcklwd xmmD,xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18)
punpckhwd xmmC,xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --)
psrldq xmmB,2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --)
movdqa xmmF,xmmE
punpcklwd xmmE,xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29)
punpckhwd xmmF,xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --)
pshufd xmmH,xmmA,0x4E; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03)
movdqa xmmB,xmmE
punpckldq xmmA,xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14)
punpckldq xmmE,xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07)
punpckhdq xmmD,xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29)
pshufd xmmH,xmmG,0x4E; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B)
movdqa xmmB,xmmF
punpckldq xmmG,xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C)
punpckldq xmmF,xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F)
punpckhdq xmmC,xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --)
punpcklqdq xmmA,xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
punpcklqdq xmmD,xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
punpcklqdq xmmF,xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
cmp rcx, byte SIZEOF_XMMWORD
jb short .column_st32
test rdi, SIZEOF_XMMWORD-1
jnz short .out1
; --(aligned)-------------------
movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF
jmp short .out0
.out1: ; --(unaligned)-----------------
movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF
.out0:
add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
sub rcx, byte SIZEOF_XMMWORD
jz near .endcolumn
add rsi, byte SIZEOF_XMMWORD ; inptr0
dec al ; Yctr
jnz near .Yloop_2nd
add rbx, byte SIZEOF_XMMWORD ; inptr1
add rdx, byte SIZEOF_XMMWORD ; inptr2
jmp near .columnloop
.column_st32:
lea rcx, [rcx+rcx*2] ; imul ecx, RGB_PIXELSIZE
cmp rcx, byte 2*SIZEOF_XMMWORD
jb short .column_st16
movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
add rdi, byte 2*SIZEOF_XMMWORD ; outptr
movdqa xmmA,xmmF
sub rcx, byte 2*SIZEOF_XMMWORD
jmp short .column_st15
.column_st16:
cmp rcx, byte SIZEOF_XMMWORD
jb short .column_st15
movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
add rdi, byte SIZEOF_XMMWORD ; outptr
movdqa xmmA,xmmD
sub rcx, byte SIZEOF_XMMWORD
.column_st15:
; Store the lower 8 bytes of xmmA to the output when it has enough
; space.
cmp rcx, byte SIZEOF_MMWORD
jb short .column_st7
movq XMM_MMWORD [rdi], xmmA
add rdi, byte SIZEOF_MMWORD
sub rcx, byte SIZEOF_MMWORD
psrldq xmmA, SIZEOF_MMWORD
.column_st7:
; Store the lower 4 bytes of xmmA to the output when it has enough
; space.
cmp rcx, byte SIZEOF_DWORD
jb short .column_st3
movd XMM_DWORD [rdi], xmmA
add rdi, byte SIZEOF_DWORD
sub rcx, byte SIZEOF_DWORD
psrldq xmmA, SIZEOF_DWORD
.column_st3:
; Store the lower 2 bytes of rax to the output when it has enough
; space.
movd eax, xmmA
cmp rcx, byte SIZEOF_WORD
jb short .column_st1
mov WORD [rdi], ax
add rdi, byte SIZEOF_WORD
sub rcx, byte SIZEOF_WORD
shr rax, 16
.column_st1:
; Store the lower 1 byte of rax to the output when it has enough
; space.
test rcx, rcx
jz short .endcolumn
mov BYTE [rdi], al
%else ; RGB_PIXELSIZE == 4 ; -----------
%ifdef RGBX_FILLER_0XFF
pcmpeqb xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
pcmpeqb xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
%else
pxor xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
pxor xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
%endif
; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **)
punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
punpcklbw xmmE,xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E)
punpcklbw xmmB,xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F)
punpcklbw xmmF,xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F)
movdqa xmmC,xmmA
punpcklwd xmmA,xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36)
punpckhwd xmmC,xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E)
movdqa xmmG,xmmB
punpcklwd xmmB,xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37)
punpckhwd xmmG,xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F)
movdqa xmmD,xmmA
punpckldq xmmA,xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
punpckhdq xmmD,xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
movdqa xmmH,xmmC
punpckldq xmmC,xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
punpckhdq xmmH,xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
cmp rcx, byte SIZEOF_XMMWORD
jb short .column_st32
test rdi, SIZEOF_XMMWORD-1
jnz short .out1
; --(aligned)-------------------
movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC
movntdq XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH
jmp short .out0
.out1: ; --(unaligned)-----------------
movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC
movdqu XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH
.out0:
add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
sub rcx, byte SIZEOF_XMMWORD
jz near .endcolumn
add rsi, byte SIZEOF_XMMWORD ; inptr0
dec al ; Yctr
jnz near .Yloop_2nd
add rbx, byte SIZEOF_XMMWORD ; inptr1
add rdx, byte SIZEOF_XMMWORD ; inptr2
jmp near .columnloop
.column_st32:
cmp rcx, byte SIZEOF_XMMWORD/2
jb short .column_st16
movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD
add rdi, byte 2*SIZEOF_XMMWORD ; outptr
movdqa xmmA,xmmC
movdqa xmmD,xmmH
sub rcx, byte SIZEOF_XMMWORD/2
.column_st16:
cmp rcx, byte SIZEOF_XMMWORD/4
jb short .column_st15
movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
add rdi, byte SIZEOF_XMMWORD ; outptr
movdqa xmmA,xmmD
sub rcx, byte SIZEOF_XMMWORD/4
.column_st15:
; Store two pixels (8 bytes) of xmmA to the output when it has enough
; space.
cmp rcx, byte SIZEOF_XMMWORD/8
jb short .column_st7
movq XMM_MMWORD [rdi], xmmA
add rdi, byte SIZEOF_XMMWORD/8*4
sub rcx, byte SIZEOF_XMMWORD/8
psrldq xmmA, SIZEOF_XMMWORD/8*4
.column_st7:
; Store one pixel (4 bytes) of xmmA to the output when it has enough
; space.
test rcx, rcx
jz short .endcolumn
movd XMM_DWORD [rdi], xmmA
%endif ; RGB_PIXELSIZE ; ---------------
.endcolumn:
sfence ; flush the write buffer
.return:
pop rbx
uncollect_args
mov rsp,rbp ; rsp <- aligned rbp
pop rsp ; rsp <- original rbp
pop rbp
ret
; --------------------------------------------------------------------------
;
; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
;
; GLOBAL(void)
; jsimd_h2v2_merged_upsample_sse2 (JDIMENSION output_width,
; JSAMPIMAGE input_buf,
; JDIMENSION in_row_group_ctr,
; JSAMPARRAY output_buf);
;
; r10 = JDIMENSION output_width
; r11 = JSAMPIMAGE input_buf
; r12 = JDIMENSION in_row_group_ctr
; r13 = JSAMPARRAY output_buf
align 16
global EXTN(jsimd_h2v2_merged_upsample_sse2)
EXTN(jsimd_h2v2_merged_upsample_sse2):
push rbp
mov rax,rsp
mov rbp,rsp
collect_args
push rbx
mov eax, r10d
mov rdi, r11
mov ecx, r12d
mov rsi, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY]
mov rbx, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY]
mov rdx, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY]
mov rdi, r13
lea rsi, [rsi+rcx*SIZEOF_JSAMPROW]
push rdx ; inptr2
push rbx ; inptr1
push rsi ; inptr00
mov rbx,rsp
push rdi
push rcx
push rax
%ifdef WIN64
mov r8, rcx
mov r9, rdi
mov rcx, rax
mov rdx, rbx
%else
mov rdx, rcx
mov rcx, rdi
mov rdi, rax
mov rsi, rbx
%endif
call EXTN(jsimd_h2v1_merged_upsample_sse2)
pop rax
pop rcx
pop rdi
pop rsi
pop rbx
pop rdx
add rdi, byte SIZEOF_JSAMPROW ; outptr1
add rsi, byte SIZEOF_JSAMPROW ; inptr01
push rdx ; inptr2
push rbx ; inptr1
push rsi ; inptr00
mov rbx,rsp
push rdi
push rcx
push rax
%ifdef WIN64
mov r8, rcx
mov r9, rdi
mov rcx, rax
mov rdx, rbx
%else
mov rdx, rcx
mov rcx, rdi
mov rdi, rax
mov rsi, rbx
%endif
call EXTN(jsimd_h2v1_merged_upsample_sse2)
pop rax
pop rcx
pop rdi
pop rsi
pop rbx
pop rdx
pop rbx
uncollect_args
pop rbp
ret
; For some reason, the OS X linker does not honor the request to align the
; segment unless we do this.
align 16
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