зеркало из https://github.com/mozilla/pjs.git
506 строки
16 KiB
NASM
506 строки
16 KiB
NASM
;
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; jdclrss2.asm - colorspace conversion (SSE2)
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;
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; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
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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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SECTION SEG_TEXT
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BITS 32
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;
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; Convert some rows of samples to the output colorspace.
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;
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; GLOBAL(void)
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; jsimd_ycc_rgb_convert_sse2 (JDIMENSION out_width,
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; JSAMPIMAGE input_buf, JDIMENSION input_row,
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; JSAMPARRAY output_buf, int num_rows)
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;
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%define out_width(b) (b)+8 ; JDIMENSION out_width
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%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
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%define input_row(b) (b)+16 ; JDIMENSION input_row
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%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
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%define num_rows(b) (b)+24 ; int num_rows
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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 2
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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_ycc_rgb_convert_sse2)
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EXTN(jsimd_ycc_rgb_convert_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 [out_width(eax)] ; num_cols
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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 [input_row(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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lea esi, [esi+ecx*SIZEOF_JSAMPROW]
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lea ebx, [ebx+ecx*SIZEOF_JSAMPROW]
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lea edx, [edx+ecx*SIZEOF_JSAMPROW]
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pop ecx
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mov edi, JSAMPARRAY [output_buf(eax)]
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mov eax, INT [num_rows(eax)]
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test eax,eax
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jle near .return
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alignx 16,7
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.rowloop:
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push eax
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push edi
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push edx
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push ebx
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push esi
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push ecx ; col
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mov esi, JSAMPROW [esi] ; inptr0
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mov ebx, JSAMPROW [ebx] ; inptr1
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mov edx, JSAMPROW [edx] ; inptr2
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mov edi, JSAMPROW [edi] ; outptr
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movpic eax, POINTER [gotptr] ; load GOT address (eax)
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alignx 16,7
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.columnloop:
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movdqa xmm5, XMMWORD [ebx] ; xmm5=Cb(0123456789ABCDEF)
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movdqa xmm1, XMMWORD [edx] ; xmm1=Cr(0123456789ABCDEF)
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pcmpeqw xmm4,xmm4
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pcmpeqw xmm7,xmm7
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psrlw xmm4,BYTE_BIT
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psllw xmm7,7 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
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movdqa xmm0,xmm4 ; xmm0=xmm4={0xFF 0x00 0xFF 0x00 ..}
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pand xmm4,xmm5 ; xmm4=Cb(02468ACE)=CbE
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psrlw xmm5,BYTE_BIT ; xmm5=Cb(13579BDF)=CbO
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pand xmm0,xmm1 ; xmm0=Cr(02468ACE)=CrE
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psrlw xmm1,BYTE_BIT ; xmm1=Cr(13579BDF)=CrO
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paddw xmm4,xmm7
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paddw xmm5,xmm7
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paddw xmm0,xmm7
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paddw xmm1,xmm7
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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 xmm2,xmm4 ; xmm2=CbE
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movdqa xmm3,xmm5 ; xmm3=CbO
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paddw xmm4,xmm4 ; xmm4=2*CbE
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paddw xmm5,xmm5 ; xmm5=2*CbO
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movdqa xmm6,xmm0 ; xmm6=CrE
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movdqa xmm7,xmm1 ; xmm7=CrO
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paddw xmm0,xmm0 ; xmm0=2*CrE
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paddw xmm1,xmm1 ; xmm1=2*CrO
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pmulhw xmm4,[GOTOFF(eax,PW_MF0228)] ; xmm4=(2*CbE * -FIX(0.22800))
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pmulhw xmm5,[GOTOFF(eax,PW_MF0228)] ; xmm5=(2*CbO * -FIX(0.22800))
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pmulhw xmm0,[GOTOFF(eax,PW_F0402)] ; xmm0=(2*CrE * FIX(0.40200))
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pmulhw xmm1,[GOTOFF(eax,PW_F0402)] ; xmm1=(2*CrO * FIX(0.40200))
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paddw xmm4,[GOTOFF(eax,PW_ONE)]
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paddw xmm5,[GOTOFF(eax,PW_ONE)]
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psraw xmm4,1 ; xmm4=(CbE * -FIX(0.22800))
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psraw xmm5,1 ; xmm5=(CbO * -FIX(0.22800))
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paddw xmm0,[GOTOFF(eax,PW_ONE)]
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paddw xmm1,[GOTOFF(eax,PW_ONE)]
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psraw xmm0,1 ; xmm0=(CrE * FIX(0.40200))
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psraw xmm1,1 ; xmm1=(CrO * FIX(0.40200))
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paddw xmm4,xmm2
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paddw xmm5,xmm3
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paddw xmm4,xmm2 ; xmm4=(CbE * FIX(1.77200))=(B-Y)E
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paddw xmm5,xmm3 ; xmm5=(CbO * FIX(1.77200))=(B-Y)O
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paddw xmm0,xmm6 ; xmm0=(CrE * FIX(1.40200))=(R-Y)E
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paddw xmm1,xmm7 ; xmm1=(CrO * FIX(1.40200))=(R-Y)O
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movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=(B-Y)E
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movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(B-Y)O
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movdqa xmm4,xmm2
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movdqa xmm5,xmm3
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punpcklwd xmm2,xmm6
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punpckhwd xmm4,xmm6
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pmaddwd xmm2,[GOTOFF(eax,PW_MF0344_F0285)]
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pmaddwd xmm4,[GOTOFF(eax,PW_MF0344_F0285)]
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punpcklwd xmm3,xmm7
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punpckhwd xmm5,xmm7
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pmaddwd xmm3,[GOTOFF(eax,PW_MF0344_F0285)]
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pmaddwd xmm5,[GOTOFF(eax,PW_MF0344_F0285)]
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paddd xmm2,[GOTOFF(eax,PD_ONEHALF)]
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paddd xmm4,[GOTOFF(eax,PD_ONEHALF)]
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psrad xmm2,SCALEBITS
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psrad xmm4,SCALEBITS
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paddd xmm3,[GOTOFF(eax,PD_ONEHALF)]
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paddd xmm5,[GOTOFF(eax,PD_ONEHALF)]
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psrad xmm3,SCALEBITS
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psrad xmm5,SCALEBITS
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packssdw xmm2,xmm4 ; xmm2=CbE*-FIX(0.344)+CrE*FIX(0.285)
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packssdw xmm3,xmm5 ; xmm3=CbO*-FIX(0.344)+CrO*FIX(0.285)
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psubw xmm2,xmm6 ; xmm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E
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psubw xmm3,xmm7 ; xmm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O
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movdqa xmm5, XMMWORD [esi] ; xmm5=Y(0123456789ABCDEF)
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pcmpeqw xmm4,xmm4
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psrlw xmm4,BYTE_BIT ; xmm4={0xFF 0x00 0xFF 0x00 ..}
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pand xmm4,xmm5 ; xmm4=Y(02468ACE)=YE
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psrlw xmm5,BYTE_BIT ; xmm5=Y(13579BDF)=YO
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paddw xmm0,xmm4 ; xmm0=((R-Y)E+YE)=RE=R(02468ACE)
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paddw xmm1,xmm5 ; xmm1=((R-Y)O+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,xmm4 ; xmm2=((G-Y)E+YE)=GE=G(02468ACE)
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paddw xmm3,xmm5 ; xmm3=((G-Y)O+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, XMMWORD [wk(0)] ; xmm4=(YE+(B-Y)E)=BE=B(02468ACE)
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paddw xmm5, XMMWORD [wk(1)] ; xmm5=(YO+(B-Y)O)=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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add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
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jmp short .out0
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.out1: ; --(unaligned)-----------------
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pcmpeqb xmmH,xmmH ; xmmH=(all 1's)
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maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], xmmA
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add edi, byte SIZEOF_XMMWORD ; outptr
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maskmovdqu xmmD,xmmH ; movntdqu XMMWORD [edi], xmmD
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add edi, byte SIZEOF_XMMWORD ; outptr
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maskmovdqu xmmF,xmmH ; movntdqu XMMWORD [edi], xmmF
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add edi, byte SIZEOF_XMMWORD ; outptr
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.out0:
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sub ecx, byte SIZEOF_XMMWORD
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jz near .nextrow
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add esi, byte SIZEOF_XMMWORD ; inptr0
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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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pcmpeqb xmmH,xmmH ; xmmH=(all 1's)
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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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maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], xmmA
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add edi, byte SIZEOF_XMMWORD ; outptr
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maskmovdqu xmmD,xmmH ; movntdqu XMMWORD [edi], xmmD
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add edi, byte 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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maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], 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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mov eax,ecx
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xor ecx, byte 0x0F
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shl ecx, 2
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movd xmmB,ecx
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psrlq xmmH,4
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pcmpeqb xmmE,xmmE
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psrlq xmmH,xmmB
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psrlq xmmE,xmmB
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punpcklbw xmmE,xmmH
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; ----------------
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mov ecx,edi
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and ecx, byte SIZEOF_XMMWORD-1
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jz short .adj0
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add eax,ecx
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cmp eax, byte SIZEOF_XMMWORD
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ja short .adj0
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and edi, byte (-SIZEOF_XMMWORD) ; align to 16-byte boundary
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shl ecx, 3 ; pslldq xmmA,ecx & pslldq xmmE,ecx
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movdqa xmmG,xmmA
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movdqa xmmC,xmmE
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pslldq xmmA, SIZEOF_XMMWORD/2
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pslldq xmmE, SIZEOF_XMMWORD/2
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movd xmmD,ecx
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sub ecx, byte (SIZEOF_XMMWORD/2)*BYTE_BIT
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jb short .adj1
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movd xmmF,ecx
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psllq xmmA,xmmF
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psllq xmmE,xmmF
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jmp short .adj0
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.adj1: neg ecx
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movd xmmF,ecx
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psrlq xmmA,xmmF
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psrlq xmmE,xmmF
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psllq xmmG,xmmD
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psllq xmmC,xmmD
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por xmmA,xmmG
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por xmmE,xmmC
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.adj0: ; ----------------
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maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
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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)
|
|
|
|
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 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
|
|
add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
|
|
jmp short .out0
|
|
.out1: ; --(unaligned)-----------------
|
|
pcmpeqb xmmE,xmmE ; xmmE=(all 1's)
|
|
maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
|
|
add edi, byte SIZEOF_XMMWORD ; outptr
|
|
maskmovdqu xmmD,xmmE ; movntdqu XMMWORD [edi], xmmD
|
|
add edi, byte SIZEOF_XMMWORD ; outptr
|
|
maskmovdqu xmmC,xmmE ; movntdqu XMMWORD [edi], xmmC
|
|
add edi, byte SIZEOF_XMMWORD ; outptr
|
|
maskmovdqu xmmH,xmmE ; movntdqu XMMWORD [edi], xmmH
|
|
add edi, byte SIZEOF_XMMWORD ; outptr
|
|
.out0:
|
|
sub ecx, byte SIZEOF_XMMWORD
|
|
jz near .nextrow
|
|
|
|
add esi, byte SIZEOF_XMMWORD ; inptr0
|
|
add ebx, byte SIZEOF_XMMWORD ; inptr1
|
|
add edx, byte SIZEOF_XMMWORD ; inptr2
|
|
jmp near .columnloop
|
|
alignx 16,7
|
|
|
|
.column_st32:
|
|
pcmpeqb xmmE,xmmE ; xmmE=(all 1's)
|
|
cmp ecx, byte SIZEOF_XMMWORD/2
|
|
jb short .column_st16
|
|
maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
|
|
add edi, byte SIZEOF_XMMWORD ; outptr
|
|
maskmovdqu xmmD,xmmE ; movntdqu XMMWORD [edi], xmmD
|
|
add edi, byte 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
|
|
maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
|
|
add edi, byte SIZEOF_XMMWORD ; outptr
|
|
movdqa xmmA,xmmD
|
|
sub ecx, byte SIZEOF_XMMWORD/4
|
|
.column_st15:
|
|
cmp ecx, byte SIZEOF_XMMWORD/16
|
|
jb short .nextrow
|
|
mov eax,ecx
|
|
xor ecx, byte 0x03
|
|
inc ecx
|
|
shl ecx, 4
|
|
movd xmmF,ecx
|
|
psrlq xmmE,xmmF
|
|
punpcklbw xmmE,xmmE
|
|
; ----------------
|
|
mov ecx,edi
|
|
and ecx, byte SIZEOF_XMMWORD-1
|
|
jz short .adj0
|
|
lea eax, [ecx+eax*4] ; RGB_PIXELSIZE
|
|
cmp eax, byte SIZEOF_XMMWORD
|
|
ja short .adj0
|
|
and edi, byte (-SIZEOF_XMMWORD) ; align to 16-byte boundary
|
|
shl ecx, 3 ; pslldq xmmA,ecx & pslldq xmmE,ecx
|
|
movdqa xmmB,xmmA
|
|
movdqa xmmG,xmmE
|
|
pslldq xmmA, SIZEOF_XMMWORD/2
|
|
pslldq xmmE, SIZEOF_XMMWORD/2
|
|
movd xmmC,ecx
|
|
sub ecx, byte (SIZEOF_XMMWORD/2)*BYTE_BIT
|
|
jb short .adj1
|
|
movd xmmH,ecx
|
|
psllq xmmA,xmmH
|
|
psllq xmmE,xmmH
|
|
jmp short .adj0
|
|
.adj1: neg ecx
|
|
movd xmmH,ecx
|
|
psrlq xmmA,xmmH
|
|
psrlq xmmE,xmmH
|
|
psllq xmmB,xmmC
|
|
psllq xmmG,xmmC
|
|
por xmmA,xmmB
|
|
por xmmE,xmmG
|
|
.adj0: ; ----------------
|
|
maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
|
|
|
|
%endif ; RGB_PIXELSIZE ; ---------------
|
|
|
|
alignx 16,7
|
|
|
|
.nextrow:
|
|
pop ecx
|
|
pop esi
|
|
pop ebx
|
|
pop edx
|
|
pop edi
|
|
pop eax
|
|
|
|
add esi, byte SIZEOF_JSAMPROW
|
|
add ebx, byte SIZEOF_JSAMPROW
|
|
add edx, byte SIZEOF_JSAMPROW
|
|
add edi, byte SIZEOF_JSAMPROW ; output_buf
|
|
dec eax ; num_rows
|
|
jg near .rowloop
|
|
|
|
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
|
|
|
|
; For some reason, the OS X linker does not honor the request to align the
|
|
; segment unless we do this.
|
|
align 16
|