kc3-lang/libjpeg-turbo/simd/jcgryext-sse2.asm

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• Hash : 24e92e9f
  Author :
  Date : 2014-05-10T09:53:34
  

  Using subdirectories unfortunately opened up a can of worms.  In order to prevent object name conflicts, it is necessary to use the subdir-objects automake directive, but it simply doesn't work right on some of the versions of automake we still have to support.  Another option would be to add a separate Makefile.am file to each subdirectory, but that requires maintaining a completely different set of build rules for each one.  Fortunately, however, we're in the 21st century now, so we can use filenames longer than 8.3.
  
  
  git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1282 632fc199-4ca6-4c93-a231-07263d6284db
  

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• simd/jcgryext-sse2.asm

• ;
  ; jcgryext.asm - grayscale colorspace conversion (SSE2)
  ;
  ; x86 SIMD extension for IJG JPEG library
  ; Copyright (C) 1999-2006, MIYASAKA Masaru.
  ; Copyright (C) 2011, D. R. Commander.
  ; 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"
  
  ; --------------------------------------------------------------------------
  ;
  ; Convert some rows of samples to the output colorspace.
  ;
  ; GLOBAL(void)
  ; jsimd_rgb_gray_convert_sse2 (JDIMENSION img_width,
  ;                              JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
  ;                              JDIMENSION output_row, int num_rows);
  ;
  
  %define img_width(b)    (b)+8           ; JDIMENSION img_width
  %define input_buf(b)    (b)+12          ; JSAMPARRAY input_buf
  %define output_buf(b)   (b)+16          ; JSAMPIMAGE output_buf
  %define output_row(b)   (b)+20          ; JDIMENSION output_row
  %define num_rows(b)     (b)+24          ; int num_rows
  
  %define original_ebp    ebp+0
  %define wk(i)           ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
  %define WK_NUM          2
  %define gotptr          wk(0)-SIZEOF_POINTER    ; void * gotptr
  
          align   16
  
          global  EXTN(jsimd_rgb_gray_convert_sse2)
  
  EXTN(jsimd_rgb_gray_convert_sse2):
          push    ebp
          mov     eax,esp                         ; eax = original ebp
          sub     esp, byte 4
          and     esp, byte (-SIZEOF_XMMWORD)     ; align to 128 bits
          mov     [esp],eax
          mov     ebp,esp                         ; ebp = aligned ebp
          lea     esp, [wk(0)]
          pushpic eax             ; make a room for GOT address
          push    ebx
  ;       push    ecx             ; need not be preserved
  ;       push    edx             ; need not be preserved
          push    esi
          push    edi
  
          get_GOT ebx                     ; get GOT address
          movpic  POINTER [gotptr], ebx   ; save GOT address
  
          mov     ecx, JDIMENSION [img_width(eax)]
          test    ecx,ecx
          jz      near .return
  
          push    ecx
  
          mov     esi, JSAMPIMAGE [output_buf(eax)]
          mov     ecx, JDIMENSION [output_row(eax)]
          mov     edi, JSAMPARRAY [esi+0*SIZEOF_JSAMPARRAY]
          lea     edi, [edi+ecx*SIZEOF_JSAMPROW]
  
          pop     ecx
  
          mov     esi, JSAMPARRAY [input_buf(eax)]
          mov     eax, INT [num_rows(eax)]
          test    eax,eax
          jle     near .return
          alignx  16,7
  .rowloop:
          pushpic eax
          push    edi
          push    esi
          push    ecx                     ; col
  
          mov     esi, JSAMPROW [esi]     ; inptr
          mov     edi, JSAMPROW [edi]     ; outptr0
          movpic  eax, POINTER [gotptr]   ; load GOT address (eax)
  
          cmp     ecx, byte SIZEOF_XMMWORD
          jae     near .columnloop
          alignx  16,7
  
  %if RGB_PIXELSIZE == 3 ; ---------------
  
  .column_ld1:
          push    eax
          push    edx
          lea     ecx,[ecx+ecx*2]         ; imul ecx,RGB_PIXELSIZE
          test    cl, SIZEOF_BYTE
          jz      short .column_ld2
          sub     ecx, byte SIZEOF_BYTE
          movzx   eax, BYTE [esi+ecx]
  .column_ld2:
          test    cl, SIZEOF_WORD
          jz      short .column_ld4
          sub     ecx, byte SIZEOF_WORD
          movzx   edx, WORD [esi+ecx]
          shl     eax, WORD_BIT
          or      eax,edx
  .column_ld4:
          movd    xmmA,eax
          pop     edx
          pop     eax
          test    cl, SIZEOF_DWORD
          jz      short .column_ld8
          sub     ecx, byte SIZEOF_DWORD
          movd    xmmF, XMM_DWORD [esi+ecx]
          pslldq  xmmA, SIZEOF_DWORD
          por     xmmA,xmmF
  .column_ld8:
          test    cl, SIZEOF_MMWORD
          jz      short .column_ld16
          sub     ecx, byte SIZEOF_MMWORD
          movq    xmmB, XMM_MMWORD [esi+ecx]
          pslldq  xmmA, SIZEOF_MMWORD
          por     xmmA,xmmB
  .column_ld16:
          test    cl, SIZEOF_XMMWORD
          jz      short .column_ld32
          movdqa  xmmF,xmmA
          movdqu  xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
          mov     ecx, SIZEOF_XMMWORD
          jmp     short .rgb_gray_cnv
  .column_ld32:
          test    cl, 2*SIZEOF_XMMWORD
          mov     ecx, SIZEOF_XMMWORD
          jz      short .rgb_gray_cnv
          movdqa  xmmB,xmmA
          movdqu  xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
          movdqu  xmmF, XMMWORD [esi+1*SIZEOF_XMMWORD]
          jmp     short .rgb_gray_cnv
          alignx  16,7
  
  .columnloop:
          movdqu  xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
          movdqu  xmmF, XMMWORD [esi+1*SIZEOF_XMMWORD]
          movdqu  xmmB, XMMWORD [esi+2*SIZEOF_XMMWORD]
  
  .rgb_gray_cnv:
          ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
          ; xmmF=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
          ; xmmB=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
  
          movdqa    xmmG,xmmA
          pslldq    xmmA,8        ; xmmA=(-- -- -- -- -- -- -- -- 00 10 20 01 11 21 02 12)
          psrldq    xmmG,8        ; xmmG=(22 03 13 23 04 14 24 05 -- -- -- -- -- -- -- --)
  
          punpckhbw xmmA,xmmF     ; xmmA=(00 08 10 18 20 28 01 09 11 19 21 29 02 0A 12 1A)
          pslldq    xmmF,8        ; xmmF=(-- -- -- -- -- -- -- -- 15 25 06 16 26 07 17 27)
  
          punpcklbw xmmG,xmmB     ; xmmG=(22 2A 03 0B 13 1B 23 2B 04 0C 14 1C 24 2C 05 0D)
          punpckhbw xmmF,xmmB     ; xmmF=(15 1D 25 2D 06 0E 16 1E 26 2E 07 0F 17 1F 27 2F)
  
          movdqa    xmmD,xmmA
          pslldq    xmmA,8        ; xmmA=(-- -- -- -- -- -- -- -- 00 08 10 18 20 28 01 09)
          psrldq    xmmD,8        ; xmmD=(11 19 21 29 02 0A 12 1A -- -- -- -- -- -- -- --)
  
          punpckhbw xmmA,xmmG     ; xmmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 01 05 09 0D)
          pslldq    xmmG,8        ; xmmG=(-- -- -- -- -- -- -- -- 22 2A 03 0B 13 1B 23 2B)
  
          punpcklbw xmmD,xmmF     ; xmmD=(11 15 19 1D 21 25 29 2D 02 06 0A 0E 12 16 1A 1E)
          punpckhbw xmmG,xmmF     ; xmmG=(22 26 2A 2E 03 07 0B 0F 13 17 1B 1F 23 27 2B 2F)
  
          movdqa    xmmE,xmmA
          pslldq    xmmA,8        ; xmmA=(-- -- -- -- -- -- -- -- 00 04 08 0C 10 14 18 1C)
          psrldq    xmmE,8        ; xmmE=(20 24 28 2C 01 05 09 0D -- -- -- -- -- -- -- --)
  
          punpckhbw xmmA,xmmD     ; xmmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E)
          pslldq    xmmD,8        ; xmmD=(-- -- -- -- -- -- -- -- 11 15 19 1D 21 25 29 2D)
  
          punpcklbw xmmE,xmmG     ; xmmE=(20 22 24 26 28 2A 2C 2E 01 03 05 07 09 0B 0D 0F)
          punpckhbw xmmD,xmmG     ; xmmD=(11 13 15 17 19 1B 1D 1F 21 23 25 27 29 2B 2D 2F)
  
          pxor      xmmH,xmmH
  
          movdqa    xmmC,xmmA
          punpcklbw xmmA,xmmH     ; xmmA=(00 02 04 06 08 0A 0C 0E)
          punpckhbw xmmC,xmmH     ; xmmC=(10 12 14 16 18 1A 1C 1E)
  
          movdqa    xmmB,xmmE
          punpcklbw xmmE,xmmH     ; xmmE=(20 22 24 26 28 2A 2C 2E)
          punpckhbw xmmB,xmmH     ; xmmB=(01 03 05 07 09 0B 0D 0F)
  
          movdqa    xmmF,xmmD
          punpcklbw xmmD,xmmH     ; xmmD=(11 13 15 17 19 1B 1D 1F)
          punpckhbw xmmF,xmmH     ; xmmF=(21 23 25 27 29 2B 2D 2F)
  
  %else ; RGB_PIXELSIZE == 4 ; -----------
  
  .column_ld1:
          test    cl, SIZEOF_XMMWORD/16
          jz      short .column_ld2
          sub     ecx, byte SIZEOF_XMMWORD/16
          movd    xmmA, XMM_DWORD [esi+ecx*RGB_PIXELSIZE]
  .column_ld2:
          test    cl, SIZEOF_XMMWORD/8
          jz      short .column_ld4
          sub     ecx, byte SIZEOF_XMMWORD/8
          movq    xmmE, XMM_MMWORD [esi+ecx*RGB_PIXELSIZE]
          pslldq  xmmA, SIZEOF_MMWORD
          por     xmmA,xmmE
  .column_ld4:
          test    cl, SIZEOF_XMMWORD/4
          jz      short .column_ld8
          sub     ecx, byte SIZEOF_XMMWORD/4
          movdqa  xmmE,xmmA
          movdqu  xmmA, XMMWORD [esi+ecx*RGB_PIXELSIZE]
  .column_ld8:
          test    cl, SIZEOF_XMMWORD/2
          mov     ecx, SIZEOF_XMMWORD
          jz      short .rgb_gray_cnv
          movdqa  xmmF,xmmA
          movdqa  xmmH,xmmE
          movdqu  xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
          movdqu  xmmE, XMMWORD [esi+1*SIZEOF_XMMWORD]
          jmp     short .rgb_gray_cnv
          alignx  16,7
  
  .columnloop:
          movdqu  xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
          movdqu  xmmE, XMMWORD [esi+1*SIZEOF_XMMWORD]
          movdqu  xmmF, XMMWORD [esi+2*SIZEOF_XMMWORD]
          movdqu  xmmH, XMMWORD [esi+3*SIZEOF_XMMWORD]
  
  .rgb_gray_cnv:
          ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
          ; xmmE=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
          ; xmmF=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
          ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
  
          movdqa    xmmD,xmmA
          punpcklbw xmmA,xmmE     ; xmmA=(00 04 10 14 20 24 30 34 01 05 11 15 21 25 31 35)
          punpckhbw xmmD,xmmE     ; xmmD=(02 06 12 16 22 26 32 36 03 07 13 17 23 27 33 37)
  
          movdqa    xmmC,xmmF
          punpcklbw xmmF,xmmH     ; xmmF=(08 0C 18 1C 28 2C 38 3C 09 0D 19 1D 29 2D 39 3D)
          punpckhbw xmmC,xmmH     ; xmmC=(0A 0E 1A 1E 2A 2E 3A 3E 0B 0F 1B 1F 2B 2F 3B 3F)
  
          movdqa    xmmB,xmmA
          punpcklwd xmmA,xmmF     ; xmmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 30 34 38 3C)
          punpckhwd xmmB,xmmF     ; xmmB=(01 05 09 0D 11 15 19 1D 21 25 29 2D 31 35 39 3D)
  
          movdqa    xmmG,xmmD
          punpcklwd xmmD,xmmC     ; xmmD=(02 06 0A 0E 12 16 1A 1E 22 26 2A 2E 32 36 3A 3E)
          punpckhwd xmmG,xmmC     ; xmmG=(03 07 0B 0F 13 17 1B 1F 23 27 2B 2F 33 37 3B 3F)
  
          movdqa    xmmE,xmmA
          punpcklbw xmmA,xmmD     ; xmmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E)
          punpckhbw xmmE,xmmD     ; xmmE=(20 22 24 26 28 2A 2C 2E 30 32 34 36 38 3A 3C 3E)
  
          movdqa    xmmH,xmmB
          punpcklbw xmmB,xmmG     ; xmmB=(01 03 05 07 09 0B 0D 0F 11 13 15 17 19 1B 1D 1F)
          punpckhbw xmmH,xmmG     ; xmmH=(21 23 25 27 29 2B 2D 2F 31 33 35 37 39 3B 3D 3F)
  
          pxor      xmmF,xmmF
  
          movdqa    xmmC,xmmA
          punpcklbw xmmA,xmmF     ; xmmA=(00 02 04 06 08 0A 0C 0E)
          punpckhbw xmmC,xmmF     ; xmmC=(10 12 14 16 18 1A 1C 1E)
  
          movdqa    xmmD,xmmB
          punpcklbw xmmB,xmmF     ; xmmB=(01 03 05 07 09 0B 0D 0F)
          punpckhbw xmmD,xmmF     ; xmmD=(11 13 15 17 19 1B 1D 1F)
  
          movdqa    xmmG,xmmE
          punpcklbw xmmE,xmmF     ; xmmE=(20 22 24 26 28 2A 2C 2E)
          punpckhbw xmmG,xmmF     ; xmmG=(30 32 34 36 38 3A 3C 3E)
  
          punpcklbw xmmF,xmmH
          punpckhbw xmmH,xmmH
          psrlw     xmmF,BYTE_BIT ; xmmF=(21 23 25 27 29 2B 2D 2F)
          psrlw     xmmH,BYTE_BIT ; xmmH=(31 33 35 37 39 3B 3D 3F)
  
  %endif ; RGB_PIXELSIZE ; ---------------
  
          ; xmm0=R(02468ACE)=RE, xmm2=G(02468ACE)=GE, xmm4=B(02468ACE)=BE
          ; xmm1=R(13579BDF)=RO, xmm3=G(13579BDF)=GO, xmm5=B(13579BDF)=BO
  
          ; (Original)
          ; Y  =  0.29900 * R + 0.58700 * G + 0.11400 * B
          ;
          ; (This implementation)
          ; Y  =  0.29900 * R + 0.33700 * G + 0.11400 * B + 0.25000 * G
  
          movdqa    xmm6,xmm1
          punpcklwd xmm1,xmm3
          punpckhwd xmm6,xmm3
          pmaddwd   xmm1,[GOTOFF(eax,PW_F0299_F0337)] ; xmm1=ROL*FIX(0.299)+GOL*FIX(0.337)
          pmaddwd   xmm6,[GOTOFF(eax,PW_F0299_F0337)] ; xmm6=ROH*FIX(0.299)+GOH*FIX(0.337)
  
          movdqa    xmm7, xmm6    ; xmm7=ROH*FIX(0.299)+GOH*FIX(0.337)
  
          movdqa    xmm6,xmm0
          punpcklwd xmm0,xmm2
          punpckhwd xmm6,xmm2
          pmaddwd   xmm0,[GOTOFF(eax,PW_F0299_F0337)] ; xmm0=REL*FIX(0.299)+GEL*FIX(0.337)
          pmaddwd   xmm6,[GOTOFF(eax,PW_F0299_F0337)] ; xmm6=REH*FIX(0.299)+GEH*FIX(0.337)
  
          movdqa    XMMWORD [wk(0)], xmm0 ; wk(0)=REL*FIX(0.299)+GEL*FIX(0.337)
          movdqa    XMMWORD [wk(1)], xmm6 ; wk(1)=REH*FIX(0.299)+GEH*FIX(0.337)
  
          movdqa    xmm0, xmm5    ; xmm0=BO
          movdqa    xmm6, xmm4    ; xmm6=BE
  
          movdqa    xmm4,xmm0
          punpcklwd xmm0,xmm3
          punpckhwd xmm4,xmm3
          pmaddwd   xmm0,[GOTOFF(eax,PW_F0114_F0250)] ; xmm0=BOL*FIX(0.114)+GOL*FIX(0.250)
          pmaddwd   xmm4,[GOTOFF(eax,PW_F0114_F0250)] ; xmm4=BOH*FIX(0.114)+GOH*FIX(0.250)
  
          movdqa    xmm3,[GOTOFF(eax,PD_ONEHALF)] ; xmm3=[PD_ONEHALF]
  
          paddd     xmm0, xmm1
          paddd     xmm4, xmm7
          paddd     xmm0,xmm3
          paddd     xmm4,xmm3
          psrld     xmm0,SCALEBITS        ; xmm0=YOL
          psrld     xmm4,SCALEBITS        ; xmm4=YOH
          packssdw  xmm0,xmm4             ; xmm0=YO
  
          movdqa    xmm4,xmm6
          punpcklwd xmm6,xmm2
          punpckhwd xmm4,xmm2
          pmaddwd   xmm6,[GOTOFF(eax,PW_F0114_F0250)] ; xmm6=BEL*FIX(0.114)+GEL*FIX(0.250)
          pmaddwd   xmm4,[GOTOFF(eax,PW_F0114_F0250)] ; xmm4=BEH*FIX(0.114)+GEH*FIX(0.250)
  
          movdqa    xmm2,[GOTOFF(eax,PD_ONEHALF)] ; xmm2=[PD_ONEHALF]
  
          paddd     xmm6, XMMWORD [wk(0)]
          paddd     xmm4, XMMWORD [wk(1)]
          paddd     xmm6,xmm2
          paddd     xmm4,xmm2
          psrld     xmm6,SCALEBITS        ; xmm6=YEL
          psrld     xmm4,SCALEBITS        ; xmm4=YEH
          packssdw  xmm6,xmm4             ; xmm6=YE
  
          psllw     xmm0,BYTE_BIT
          por       xmm6,xmm0             ; xmm6=Y
          movdqa    XMMWORD [edi], xmm6   ; Save Y
  
          sub     ecx, byte SIZEOF_XMMWORD
          add     esi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD  ; inptr
          add     edi, byte SIZEOF_XMMWORD                ; outptr0
          cmp     ecx, byte SIZEOF_XMMWORD
          jae     near .columnloop
          test    ecx,ecx
          jnz     near .column_ld1
  
          pop     ecx                     ; col
          pop     esi
          pop     edi
          poppic  eax
  
          add     esi, byte SIZEOF_JSAMPROW       ; input_buf
          add     edi, byte SIZEOF_JSAMPROW
          dec     eax                             ; num_rows
          jg      near .rowloop
  
  .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
  

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