зеркало из https://github.com/mozilla/mozjpeg.git
520 строки
16 KiB
NASM
520 строки
16 KiB
NASM
;
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; jdmrgss2.asm - merged upsampling/color conversion (SSE2)
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;
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; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB
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; Copyright 2012 D. R. Commander
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;
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; Based on
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; x86 SIMD extension for IJG JPEG library
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; Copyright (C) 1999-2006, MIYASAKA Masaru.
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; For conditions of distribution and use, see copyright notice in jsimdext.inc
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;
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; This file should be assembled with NASM (Netwide Assembler),
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; can *not* be assembled with Microsoft's MASM or any compatible
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; assembler (including Borland's Turbo Assembler).
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; NASM is available from http://nasm.sourceforge.net/ or
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; http://sourceforge.net/project/showfiles.php?group_id=6208
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;
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; [TAB8]
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%include "jcolsamp.inc"
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; --------------------------------------------------------------------------
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;
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; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
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;
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; GLOBAL(void)
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; jsimd_h2v1_merged_upsample_sse2 (JDIMENSION output_width,
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; JSAMPIMAGE input_buf,
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; JDIMENSION in_row_group_ctr,
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; JSAMPARRAY output_buf);
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;
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%define output_width(b) (b)+8 ; JDIMENSION output_width
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%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
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%define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
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%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
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%define original_ebp ebp+0
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%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
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%define WK_NUM 3
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%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
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align 16
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global EXTN(jsimd_h2v1_merged_upsample_sse2)
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EXTN(jsimd_h2v1_merged_upsample_sse2):
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push ebp
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mov eax,esp ; eax = original ebp
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sub esp, byte 4
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and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
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mov [esp],eax
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mov ebp,esp ; ebp = aligned ebp
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lea esp, [wk(0)]
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pushpic eax ; make a room for GOT address
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push ebx
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; push ecx ; need not be preserved
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; push edx ; need not be preserved
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push esi
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push edi
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get_GOT ebx ; get GOT address
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movpic POINTER [gotptr], ebx ; save GOT address
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mov ecx, JDIMENSION [output_width(eax)] ; col
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test ecx,ecx
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jz near .return
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push ecx
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mov edi, JSAMPIMAGE [input_buf(eax)]
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mov ecx, JDIMENSION [in_row_group_ctr(eax)]
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mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
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mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
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mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
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mov edi, JSAMPARRAY [output_buf(eax)]
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mov esi, JSAMPROW [esi+ecx*SIZEOF_JSAMPROW] ; inptr0
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mov ebx, JSAMPROW [ebx+ecx*SIZEOF_JSAMPROW] ; inptr1
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mov edx, JSAMPROW [edx+ecx*SIZEOF_JSAMPROW] ; inptr2
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mov edi, JSAMPROW [edi] ; outptr
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pop ecx ; col
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alignx 16,7
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.columnloop:
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movpic eax, POINTER [gotptr] ; load GOT address (eax)
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movdqa xmm6, XMMWORD [ebx] ; xmm6=Cb(0123456789ABCDEF)
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movdqa xmm7, XMMWORD [edx] ; xmm7=Cr(0123456789ABCDEF)
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pxor xmm1,xmm1 ; xmm1=(all 0's)
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pcmpeqw xmm3,xmm3
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psllw xmm3,7 ; xmm3={0xFF80 0xFF80 0xFF80 0xFF80 ..}
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movdqa xmm4,xmm6
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punpckhbw xmm6,xmm1 ; xmm6=Cb(89ABCDEF)=CbH
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punpcklbw xmm4,xmm1 ; xmm4=Cb(01234567)=CbL
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movdqa xmm0,xmm7
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punpckhbw xmm7,xmm1 ; xmm7=Cr(89ABCDEF)=CrH
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punpcklbw xmm0,xmm1 ; xmm0=Cr(01234567)=CrL
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paddw xmm6,xmm3
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paddw xmm4,xmm3
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paddw xmm7,xmm3
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paddw xmm0,xmm3
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; (Original)
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; R = Y + 1.40200 * Cr
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; G = Y - 0.34414 * Cb - 0.71414 * Cr
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; B = Y + 1.77200 * Cb
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;
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; (This implementation)
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; R = Y + 0.40200 * Cr + Cr
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; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
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; B = Y - 0.22800 * Cb + Cb + Cb
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movdqa xmm5,xmm6 ; xmm5=CbH
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movdqa xmm2,xmm4 ; xmm2=CbL
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paddw xmm6,xmm6 ; xmm6=2*CbH
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paddw xmm4,xmm4 ; xmm4=2*CbL
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movdqa xmm1,xmm7 ; xmm1=CrH
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movdqa xmm3,xmm0 ; xmm3=CrL
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paddw xmm7,xmm7 ; xmm7=2*CrH
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paddw xmm0,xmm0 ; xmm0=2*CrL
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pmulhw xmm6,[GOTOFF(eax,PW_MF0228)] ; xmm6=(2*CbH * -FIX(0.22800))
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pmulhw xmm4,[GOTOFF(eax,PW_MF0228)] ; xmm4=(2*CbL * -FIX(0.22800))
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pmulhw xmm7,[GOTOFF(eax,PW_F0402)] ; xmm7=(2*CrH * FIX(0.40200))
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pmulhw xmm0,[GOTOFF(eax,PW_F0402)] ; xmm0=(2*CrL * FIX(0.40200))
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paddw xmm6,[GOTOFF(eax,PW_ONE)]
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paddw xmm4,[GOTOFF(eax,PW_ONE)]
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psraw xmm6,1 ; xmm6=(CbH * -FIX(0.22800))
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psraw xmm4,1 ; xmm4=(CbL * -FIX(0.22800))
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paddw xmm7,[GOTOFF(eax,PW_ONE)]
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paddw xmm0,[GOTOFF(eax,PW_ONE)]
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psraw xmm7,1 ; xmm7=(CrH * FIX(0.40200))
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psraw xmm0,1 ; xmm0=(CrL * FIX(0.40200))
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paddw xmm6,xmm5
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paddw xmm4,xmm2
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paddw xmm6,xmm5 ; xmm6=(CbH * FIX(1.77200))=(B-Y)H
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paddw xmm4,xmm2 ; xmm4=(CbL * FIX(1.77200))=(B-Y)L
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paddw xmm7,xmm1 ; xmm7=(CrH * FIX(1.40200))=(R-Y)H
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paddw xmm0,xmm3 ; xmm0=(CrL * FIX(1.40200))=(R-Y)L
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movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=(B-Y)H
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movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(R-Y)H
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movdqa xmm6,xmm5
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movdqa xmm7,xmm2
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punpcklwd xmm5,xmm1
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punpckhwd xmm6,xmm1
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pmaddwd xmm5,[GOTOFF(eax,PW_MF0344_F0285)]
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pmaddwd xmm6,[GOTOFF(eax,PW_MF0344_F0285)]
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punpcklwd xmm2,xmm3
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punpckhwd xmm7,xmm3
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pmaddwd xmm2,[GOTOFF(eax,PW_MF0344_F0285)]
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pmaddwd xmm7,[GOTOFF(eax,PW_MF0344_F0285)]
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paddd xmm5,[GOTOFF(eax,PD_ONEHALF)]
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paddd xmm6,[GOTOFF(eax,PD_ONEHALF)]
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psrad xmm5,SCALEBITS
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psrad xmm6,SCALEBITS
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paddd xmm2,[GOTOFF(eax,PD_ONEHALF)]
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paddd xmm7,[GOTOFF(eax,PD_ONEHALF)]
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psrad xmm2,SCALEBITS
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psrad xmm7,SCALEBITS
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packssdw xmm5,xmm6 ; xmm5=CbH*-FIX(0.344)+CrH*FIX(0.285)
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packssdw xmm2,xmm7 ; xmm2=CbL*-FIX(0.344)+CrL*FIX(0.285)
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psubw xmm5,xmm1 ; xmm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H
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psubw xmm2,xmm3 ; xmm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L
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movdqa XMMWORD [wk(2)], xmm5 ; wk(2)=(G-Y)H
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mov al,2 ; Yctr
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jmp short .Yloop_1st
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alignx 16,7
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.Yloop_2nd:
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movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(R-Y)H
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movdqa xmm2, XMMWORD [wk(2)] ; xmm2=(G-Y)H
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movdqa xmm4, XMMWORD [wk(0)] ; xmm4=(B-Y)H
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alignx 16,7
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.Yloop_1st:
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movdqa xmm7, XMMWORD [esi] ; xmm7=Y(0123456789ABCDEF)
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pcmpeqw xmm6,xmm6
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psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..}
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pand xmm6,xmm7 ; xmm6=Y(02468ACE)=YE
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psrlw xmm7,BYTE_BIT ; xmm7=Y(13579BDF)=YO
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movdqa xmm1,xmm0 ; xmm1=xmm0=(R-Y)(L/H)
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movdqa xmm3,xmm2 ; xmm3=xmm2=(G-Y)(L/H)
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movdqa xmm5,xmm4 ; xmm5=xmm4=(B-Y)(L/H)
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paddw xmm0,xmm6 ; xmm0=((R-Y)+YE)=RE=R(02468ACE)
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paddw xmm1,xmm7 ; xmm1=((R-Y)+YO)=RO=R(13579BDF)
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packuswb xmm0,xmm0 ; xmm0=R(02468ACE********)
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packuswb xmm1,xmm1 ; xmm1=R(13579BDF********)
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paddw xmm2,xmm6 ; xmm2=((G-Y)+YE)=GE=G(02468ACE)
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paddw xmm3,xmm7 ; xmm3=((G-Y)+YO)=GO=G(13579BDF)
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packuswb xmm2,xmm2 ; xmm2=G(02468ACE********)
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packuswb xmm3,xmm3 ; xmm3=G(13579BDF********)
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paddw xmm4,xmm6 ; xmm4=((B-Y)+YE)=BE=B(02468ACE)
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paddw xmm5,xmm7 ; xmm5=((B-Y)+YO)=BO=B(13579BDF)
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packuswb xmm4,xmm4 ; xmm4=B(02468ACE********)
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packuswb xmm5,xmm5 ; xmm5=B(13579BDF********)
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%if RGB_PIXELSIZE == 3 ; ---------------
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; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
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; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
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; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
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; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **)
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punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
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punpcklbw xmmE,xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F)
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punpcklbw xmmD,xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F)
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movdqa xmmG,xmmA
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movdqa xmmH,xmmA
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punpcklwd xmmA,xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07)
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punpckhwd xmmG,xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F)
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psrldq xmmH,2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --)
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psrldq xmmE,2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --)
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movdqa xmmC,xmmD
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movdqa xmmB,xmmD
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punpcklwd xmmD,xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18)
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punpckhwd xmmC,xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --)
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psrldq xmmB,2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --)
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movdqa xmmF,xmmE
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punpcklwd xmmE,xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29)
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punpckhwd xmmF,xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --)
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pshufd xmmH,xmmA,0x4E; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03)
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movdqa xmmB,xmmE
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punpckldq xmmA,xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14)
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punpckldq xmmE,xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07)
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punpckhdq xmmD,xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29)
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pshufd xmmH,xmmG,0x4E; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B)
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movdqa xmmB,xmmF
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punpckldq xmmG,xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C)
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punpckldq xmmF,xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F)
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punpckhdq xmmC,xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --)
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punpcklqdq xmmA,xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
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punpcklqdq xmmD,xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
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punpcklqdq xmmF,xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
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cmp ecx, byte SIZEOF_XMMWORD
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jb short .column_st32
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test edi, SIZEOF_XMMWORD-1
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jnz short .out1
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; --(aligned)-------------------
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movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
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movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
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movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF
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jmp short .out0
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.out1: ; --(unaligned)-----------------
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movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
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movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
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movdqu XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF
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.out0:
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add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
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sub ecx, byte SIZEOF_XMMWORD
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jz near .endcolumn
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add esi, byte SIZEOF_XMMWORD ; inptr0
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dec al ; Yctr
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jnz near .Yloop_2nd
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add ebx, byte SIZEOF_XMMWORD ; inptr1
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add edx, byte SIZEOF_XMMWORD ; inptr2
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jmp near .columnloop
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alignx 16,7
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.column_st32:
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lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE
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cmp ecx, byte 2*SIZEOF_XMMWORD
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jb short .column_st16
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movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
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movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
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add edi, byte 2*SIZEOF_XMMWORD ; outptr
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movdqa xmmA,xmmF
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sub ecx, byte 2*SIZEOF_XMMWORD
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jmp short .column_st15
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.column_st16:
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cmp ecx, byte SIZEOF_XMMWORD
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jb short .column_st15
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movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
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add edi, byte SIZEOF_XMMWORD ; outptr
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movdqa xmmA,xmmD
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sub ecx, byte SIZEOF_XMMWORD
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.column_st15:
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; Store the lower 8 bytes of xmmA to the output when it has enough
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; space.
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cmp ecx, byte SIZEOF_MMWORD
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jb short .column_st7
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movq XMM_MMWORD [edi], xmmA
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add edi, byte SIZEOF_MMWORD
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sub ecx, byte SIZEOF_MMWORD
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psrldq xmmA, SIZEOF_MMWORD
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.column_st7:
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; Store the lower 4 bytes of xmmA to the output when it has enough
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; space.
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cmp ecx, byte SIZEOF_DWORD
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jb short .column_st3
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movd XMM_DWORD [edi], xmmA
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add edi, byte SIZEOF_DWORD
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sub ecx, byte SIZEOF_DWORD
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psrldq xmmA, SIZEOF_DWORD
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.column_st3:
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; Store the lower 2 bytes of eax to the output when it has enough
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; space.
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movd eax, xmmA
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cmp ecx, byte SIZEOF_WORD
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jb short .column_st1
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mov WORD [edi], ax
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add edi, byte SIZEOF_WORD
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sub ecx, byte SIZEOF_WORD
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shr eax, 16
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.column_st1:
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; Store the lower 1 byte of eax to the output when it has enough
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; space.
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test ecx, ecx
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jz short .endcolumn
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mov BYTE [edi], al
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%else ; RGB_PIXELSIZE == 4 ; -----------
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%ifdef RGBX_FILLER_0XFF
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pcmpeqb xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
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pcmpeqb xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
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%else
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pxor xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
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pxor xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
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%endif
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; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
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; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
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; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
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; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **)
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punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
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punpcklbw xmmE,xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E)
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punpcklbw xmmB,xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F)
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punpcklbw xmmF,xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F)
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movdqa xmmC,xmmA
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punpcklwd xmmA,xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36)
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punpckhwd xmmC,xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E)
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|
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 ecx, byte SIZEOF_XMMWORD
|
|
jb short .column_st32
|
|
|
|
test edi, SIZEOF_XMMWORD-1
|
|
jnz short .out1
|
|
; --(aligned)-------------------
|
|
movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
|
|
movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
|
|
movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC
|
|
movntdq XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH
|
|
jmp short .out0
|
|
.out1: ; --(unaligned)-----------------
|
|
movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
|
|
movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
|
|
movdqu XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC
|
|
movdqu XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH
|
|
.out0:
|
|
add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
|
|
sub ecx, byte SIZEOF_XMMWORD
|
|
jz near .endcolumn
|
|
|
|
add esi, byte SIZEOF_XMMWORD ; inptr0
|
|
dec al ; Yctr
|
|
jnz near .Yloop_2nd
|
|
|
|
add ebx, byte SIZEOF_XMMWORD ; inptr1
|
|
add edx, byte SIZEOF_XMMWORD ; inptr2
|
|
jmp near .columnloop
|
|
alignx 16,7
|
|
|
|
.column_st32:
|
|
cmp ecx, byte SIZEOF_XMMWORD/2
|
|
jb short .column_st16
|
|
movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
|
|
movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
|
|
add edi, byte 2*SIZEOF_XMMWORD ; outptr
|
|
movdqa xmmA,xmmC
|
|
movdqa xmmD,xmmH
|
|
sub ecx, byte SIZEOF_XMMWORD/2
|
|
.column_st16:
|
|
cmp ecx, byte SIZEOF_XMMWORD/4
|
|
jb short .column_st15
|
|
movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
|
|
add edi, byte SIZEOF_XMMWORD ; outptr
|
|
movdqa xmmA,xmmD
|
|
sub ecx, byte SIZEOF_XMMWORD/4
|
|
.column_st15:
|
|
; Store two pixels (8 bytes) of xmmA to the output when it has enough
|
|
; space.
|
|
cmp ecx, byte SIZEOF_XMMWORD/8
|
|
jb short .column_st7
|
|
movq XMM_MMWORD [edi], xmmA
|
|
add edi, byte SIZEOF_XMMWORD/8*4
|
|
sub ecx, 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 ecx, ecx
|
|
jz short .endcolumn
|
|
movd XMM_DWORD [edi], xmmA
|
|
|
|
%endif ; RGB_PIXELSIZE ; ---------------
|
|
|
|
.endcolumn:
|
|
sfence ; flush the write buffer
|
|
|
|
.return:
|
|
pop edi
|
|
pop esi
|
|
; pop edx ; need not be preserved
|
|
; pop ecx ; need not be preserved
|
|
pop ebx
|
|
mov esp,ebp ; esp <- aligned ebp
|
|
pop esp ; esp <- original ebp
|
|
pop ebp
|
|
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);
|
|
;
|
|
|
|
%define output_width(b) (b)+8 ; JDIMENSION output_width
|
|
%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
|
|
%define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
|
|
%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
|
|
|
|
align 16
|
|
global EXTN(jsimd_h2v2_merged_upsample_sse2)
|
|
|
|
EXTN(jsimd_h2v2_merged_upsample_sse2):
|
|
push ebp
|
|
mov ebp,esp
|
|
push ebx
|
|
; push ecx ; need not be preserved
|
|
; push edx ; need not be preserved
|
|
push esi
|
|
push edi
|
|
|
|
mov eax, POINTER [output_width(ebp)]
|
|
|
|
mov edi, JSAMPIMAGE [input_buf(ebp)]
|
|
mov ecx, JDIMENSION [in_row_group_ctr(ebp)]
|
|
mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
|
|
mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
|
|
mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
|
|
mov edi, JSAMPARRAY [output_buf(ebp)]
|
|
lea esi, [esi+ecx*SIZEOF_JSAMPROW]
|
|
|
|
push edx ; inptr2
|
|
push ebx ; inptr1
|
|
push esi ; inptr00
|
|
mov ebx,esp
|
|
|
|
push edi ; output_buf (outptr0)
|
|
push ecx ; in_row_group_ctr
|
|
push ebx ; input_buf
|
|
push eax ; output_width
|
|
|
|
call near EXTN(jsimd_h2v1_merged_upsample_sse2)
|
|
|
|
add esi, byte SIZEOF_JSAMPROW ; inptr01
|
|
add edi, byte SIZEOF_JSAMPROW ; outptr1
|
|
mov POINTER [ebx+0*SIZEOF_POINTER], esi
|
|
mov POINTER [ebx-1*SIZEOF_POINTER], edi
|
|
|
|
call near EXTN(jsimd_h2v1_merged_upsample_sse2)
|
|
|
|
add esp, byte 7*SIZEOF_DWORD
|
|
|
|
pop edi
|
|
pop esi
|
|
; pop edx ; need not be preserved
|
|
; pop ecx ; need not be preserved
|
|
pop ebx
|
|
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
|