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1 files changed, 405 insertions, 0 deletions
diff --git a/tags/1.2.1/simd/jdclrmmx.asm b/tags/1.2.1/simd/jdclrmmx.asm
new file mode 100644
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+++ b/tags/1.2.1/simd/jdclrmmx.asm
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+;
+; jdclrmmx.asm - colorspace conversion (MMX)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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"
+
+; --------------------------------------------------------------------------
+;
+; Convert some rows of samples to the output colorspace.
+;
+; GLOBAL(void)
+; jsimd_ycc_rgb_convert_mmx (JDIMENSION out_width,
+; JSAMPIMAGE input_buf, JDIMENSION input_row,
+; JSAMPARRAY output_buf, int num_rows)
+;
+
+%define out_width(b) (b)+8 ; JDIMENSION out_width
+%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
+%define input_row(b) (b)+16 ; JDIMENSION input_row
+%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
+%define num_rows(b) (b)+24 ; int num_rows
+
+%define original_ebp ebp+0
+%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM]
+%define WK_NUM 2
+%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
+
+ align 16
+ global EXTN(jsimd_ycc_rgb_convert_mmx)
+
+EXTN(jsimd_ycc_rgb_convert_mmx):
+ push ebp
+ mov eax,esp ; eax = original ebp
+ sub esp, byte 4
+ and esp, byte (-SIZEOF_MMWORD) ; align to 64 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 [out_width(eax)] ; num_cols
+ test ecx,ecx
+ jz near .return
+
+ push ecx
+
+ mov edi, JSAMPIMAGE [input_buf(eax)]
+ mov ecx, JDIMENSION [input_row(eax)]
+ mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
+ mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
+ mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
+ lea esi, [esi+ecx*SIZEOF_JSAMPROW]
+ lea ebx, [ebx+ecx*SIZEOF_JSAMPROW]
+ lea edx, [edx+ecx*SIZEOF_JSAMPROW]
+
+ pop ecx
+
+ mov edi, JSAMPARRAY [output_buf(eax)]
+ mov eax, INT [num_rows(eax)]
+ test eax,eax
+ jle near .return
+ alignx 16,7
+.rowloop:
+ push eax
+ push edi
+ push edx
+ push ebx
+ push esi
+ push ecx ; col
+
+ mov esi, JSAMPROW [esi] ; inptr0
+ mov ebx, JSAMPROW [ebx] ; inptr1
+ mov edx, JSAMPROW [edx] ; inptr2
+ mov edi, JSAMPROW [edi] ; outptr
+ movpic eax, POINTER [gotptr] ; load GOT address (eax)
+ alignx 16,7
+.columnloop:
+
+ movq mm5, MMWORD [ebx] ; mm5=Cb(01234567)
+ movq mm1, MMWORD [edx] ; mm1=Cr(01234567)
+
+ pcmpeqw mm4,mm4
+ pcmpeqw mm7,mm7
+ psrlw mm4,BYTE_BIT
+ psllw mm7,7 ; mm7={0xFF80 0xFF80 0xFF80 0xFF80}
+ movq mm0,mm4 ; mm0=mm4={0xFF 0x00 0xFF 0x00 ..}
+
+ pand mm4,mm5 ; mm4=Cb(0246)=CbE
+ psrlw mm5,BYTE_BIT ; mm5=Cb(1357)=CbO
+ pand mm0,mm1 ; mm0=Cr(0246)=CrE
+ psrlw mm1,BYTE_BIT ; mm1=Cr(1357)=CrO
+
+ paddw mm4,mm7
+ paddw mm5,mm7
+ paddw mm0,mm7
+ paddw mm1,mm7
+
+ ; (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
+
+ movq mm2,mm4 ; mm2=CbE
+ movq mm3,mm5 ; mm3=CbO
+ paddw mm4,mm4 ; mm4=2*CbE
+ paddw mm5,mm5 ; mm5=2*CbO
+ movq mm6,mm0 ; mm6=CrE
+ movq mm7,mm1 ; mm7=CrO
+ paddw mm0,mm0 ; mm0=2*CrE
+ paddw mm1,mm1 ; mm1=2*CrO
+
+ pmulhw mm4,[GOTOFF(eax,PW_MF0228)] ; mm4=(2*CbE * -FIX(0.22800))
+ pmulhw mm5,[GOTOFF(eax,PW_MF0228)] ; mm5=(2*CbO * -FIX(0.22800))
+ pmulhw mm0,[GOTOFF(eax,PW_F0402)] ; mm0=(2*CrE * FIX(0.40200))
+ pmulhw mm1,[GOTOFF(eax,PW_F0402)] ; mm1=(2*CrO * FIX(0.40200))
+
+ paddw mm4,[GOTOFF(eax,PW_ONE)]
+ paddw mm5,[GOTOFF(eax,PW_ONE)]
+ psraw mm4,1 ; mm4=(CbE * -FIX(0.22800))
+ psraw mm5,1 ; mm5=(CbO * -FIX(0.22800))
+ paddw mm0,[GOTOFF(eax,PW_ONE)]
+ paddw mm1,[GOTOFF(eax,PW_ONE)]
+ psraw mm0,1 ; mm0=(CrE * FIX(0.40200))
+ psraw mm1,1 ; mm1=(CrO * FIX(0.40200))
+
+ paddw mm4,mm2
+ paddw mm5,mm3
+ paddw mm4,mm2 ; mm4=(CbE * FIX(1.77200))=(B-Y)E
+ paddw mm5,mm3 ; mm5=(CbO * FIX(1.77200))=(B-Y)O
+ paddw mm0,mm6 ; mm0=(CrE * FIX(1.40200))=(R-Y)E
+ paddw mm1,mm7 ; mm1=(CrO * FIX(1.40200))=(R-Y)O
+
+ movq MMWORD [wk(0)], mm4 ; wk(0)=(B-Y)E
+ movq MMWORD [wk(1)], mm5 ; wk(1)=(B-Y)O
+
+ movq mm4,mm2
+ movq mm5,mm3
+ punpcklwd mm2,mm6
+ punpckhwd mm4,mm6
+ pmaddwd mm2,[GOTOFF(eax,PW_MF0344_F0285)]
+ pmaddwd mm4,[GOTOFF(eax,PW_MF0344_F0285)]
+ punpcklwd mm3,mm7
+ punpckhwd mm5,mm7
+ pmaddwd mm3,[GOTOFF(eax,PW_MF0344_F0285)]
+ pmaddwd mm5,[GOTOFF(eax,PW_MF0344_F0285)]
+
+ paddd mm2,[GOTOFF(eax,PD_ONEHALF)]
+ paddd mm4,[GOTOFF(eax,PD_ONEHALF)]
+ psrad mm2,SCALEBITS
+ psrad mm4,SCALEBITS
+ paddd mm3,[GOTOFF(eax,PD_ONEHALF)]
+ paddd mm5,[GOTOFF(eax,PD_ONEHALF)]
+ psrad mm3,SCALEBITS
+ psrad mm5,SCALEBITS
+
+ packssdw mm2,mm4 ; mm2=CbE*-FIX(0.344)+CrE*FIX(0.285)
+ packssdw mm3,mm5 ; mm3=CbO*-FIX(0.344)+CrO*FIX(0.285)
+ psubw mm2,mm6 ; mm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E
+ psubw mm3,mm7 ; mm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O
+
+ movq mm5, MMWORD [esi] ; mm5=Y(01234567)
+
+ pcmpeqw mm4,mm4
+ psrlw mm4,BYTE_BIT ; mm4={0xFF 0x00 0xFF 0x00 ..}
+ pand mm4,mm5 ; mm4=Y(0246)=YE
+ psrlw mm5,BYTE_BIT ; mm5=Y(1357)=YO
+
+ paddw mm0,mm4 ; mm0=((R-Y)E+YE)=RE=(R0 R2 R4 R6)
+ paddw mm1,mm5 ; mm1=((R-Y)O+YO)=RO=(R1 R3 R5 R7)
+ packuswb mm0,mm0 ; mm0=(R0 R2 R4 R6 ** ** ** **)
+ packuswb mm1,mm1 ; mm1=(R1 R3 R5 R7 ** ** ** **)
+
+ paddw mm2,mm4 ; mm2=((G-Y)E+YE)=GE=(G0 G2 G4 G6)
+ paddw mm3,mm5 ; mm3=((G-Y)O+YO)=GO=(G1 G3 G5 G7)
+ packuswb mm2,mm2 ; mm2=(G0 G2 G4 G6 ** ** ** **)
+ packuswb mm3,mm3 ; mm3=(G1 G3 G5 G7 ** ** ** **)
+
+ paddw mm4, MMWORD [wk(0)] ; mm4=(YE+(B-Y)E)=BE=(B0 B2 B4 B6)
+ paddw mm5, MMWORD [wk(1)] ; mm5=(YO+(B-Y)O)=BO=(B1 B3 B5 B7)
+ packuswb mm4,mm4 ; mm4=(B0 B2 B4 B6 ** ** ** **)
+ packuswb mm5,mm5 ; mm5=(B1 B3 B5 B7 ** ** ** **)
+
+%if RGB_PIXELSIZE == 3 ; ---------------
+
+ ; mmA=(00 02 04 06 ** ** ** **), mmB=(01 03 05 07 ** ** ** **)
+ ; mmC=(10 12 14 16 ** ** ** **), mmD=(11 13 15 17 ** ** ** **)
+ ; mmE=(20 22 24 26 ** ** ** **), mmF=(21 23 25 27 ** ** ** **)
+ ; mmG=(** ** ** ** ** ** ** **), mmH=(** ** ** ** ** ** ** **)
+
+ punpcklbw mmA,mmC ; mmA=(00 10 02 12 04 14 06 16)
+ punpcklbw mmE,mmB ; mmE=(20 01 22 03 24 05 26 07)
+ punpcklbw mmD,mmF ; mmD=(11 21 13 23 15 25 17 27)
+
+ movq mmG,mmA
+ movq mmH,mmA
+ punpcklwd mmA,mmE ; mmA=(00 10 20 01 02 12 22 03)
+ punpckhwd mmG,mmE ; mmG=(04 14 24 05 06 16 26 07)
+
+ psrlq mmH,2*BYTE_BIT ; mmH=(02 12 04 14 06 16 -- --)
+ psrlq mmE,2*BYTE_BIT ; mmE=(22 03 24 05 26 07 -- --)
+
+ movq mmC,mmD
+ movq mmB,mmD
+ punpcklwd mmD,mmH ; mmD=(11 21 02 12 13 23 04 14)
+ punpckhwd mmC,mmH ; mmC=(15 25 06 16 17 27 -- --)
+
+ psrlq mmB,2*BYTE_BIT ; mmB=(13 23 15 25 17 27 -- --)
+
+ movq mmF,mmE
+ punpcklwd mmE,mmB ; mmE=(22 03 13 23 24 05 15 25)
+ punpckhwd mmF,mmB ; mmF=(26 07 17 27 -- -- -- --)
+
+ punpckldq mmA,mmD ; mmA=(00 10 20 01 11 21 02 12)
+ punpckldq mmE,mmG ; mmE=(22 03 13 23 04 14 24 05)
+ punpckldq mmC,mmF ; mmC=(15 25 06 16 26 07 17 27)
+
+ cmp ecx, byte SIZEOF_MMWORD
+ jb short .column_st16
+
+ movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
+ movq MMWORD [edi+1*SIZEOF_MMWORD], mmE
+ movq MMWORD [edi+2*SIZEOF_MMWORD], mmC
+
+ sub ecx, byte SIZEOF_MMWORD
+ jz short .nextrow
+
+ add esi, byte SIZEOF_MMWORD ; inptr0
+ add ebx, byte SIZEOF_MMWORD ; inptr1
+ add edx, byte SIZEOF_MMWORD ; inptr2
+ add edi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; outptr
+ jmp near .columnloop
+ alignx 16,7
+
+.column_st16:
+ lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE
+ cmp ecx, byte 2*SIZEOF_MMWORD
+ jb short .column_st8
+ movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
+ movq MMWORD [edi+1*SIZEOF_MMWORD], mmE
+ movq mmA,mmC
+ sub ecx, byte 2*SIZEOF_MMWORD
+ add edi, byte 2*SIZEOF_MMWORD
+ jmp short .column_st4
+.column_st8:
+ cmp ecx, byte SIZEOF_MMWORD
+ jb short .column_st4
+ movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
+ movq mmA,mmE
+ sub ecx, byte SIZEOF_MMWORD
+ add edi, byte SIZEOF_MMWORD
+.column_st4:
+ movd eax,mmA
+ cmp ecx, byte SIZEOF_DWORD
+ jb short .column_st2
+ mov DWORD [edi+0*SIZEOF_DWORD], eax
+ psrlq mmA,DWORD_BIT
+ movd eax,mmA
+ sub ecx, byte SIZEOF_DWORD
+ add edi, byte SIZEOF_DWORD
+.column_st2:
+ cmp ecx, byte SIZEOF_WORD
+ jb short .column_st1
+ mov WORD [edi+0*SIZEOF_WORD], ax
+ shr eax,WORD_BIT
+ sub ecx, byte SIZEOF_WORD
+ add edi, byte SIZEOF_WORD
+.column_st1:
+ cmp ecx, byte SIZEOF_BYTE
+ jb short .nextrow
+ mov BYTE [edi+0*SIZEOF_BYTE], al
+
+%else ; RGB_PIXELSIZE == 4 ; -----------
+
+%ifdef RGBX_FILLER_0XFF
+ pcmpeqb mm6,mm6 ; mm6=(X0 X2 X4 X6 ** ** ** **)
+ pcmpeqb mm7,mm7 ; mm7=(X1 X3 X5 X7 ** ** ** **)
+%else
+ pxor mm6,mm6 ; mm6=(X0 X2 X4 X6 ** ** ** **)
+ pxor mm7,mm7 ; mm7=(X1 X3 X5 X7 ** ** ** **)
+%endif
+ ; mmA=(00 02 04 06 ** ** ** **), mmB=(01 03 05 07 ** ** ** **)
+ ; mmC=(10 12 14 16 ** ** ** **), mmD=(11 13 15 17 ** ** ** **)
+ ; mmE=(20 22 24 26 ** ** ** **), mmF=(21 23 25 27 ** ** ** **)
+ ; mmG=(30 32 34 36 ** ** ** **), mmH=(31 33 35 37 ** ** ** **)
+
+ punpcklbw mmA,mmC ; mmA=(00 10 02 12 04 14 06 16)
+ punpcklbw mmE,mmG ; mmE=(20 30 22 32 24 34 26 36)
+ punpcklbw mmB,mmD ; mmB=(01 11 03 13 05 15 07 17)
+ punpcklbw mmF,mmH ; mmF=(21 31 23 33 25 35 27 37)
+
+ movq mmC,mmA
+ punpcklwd mmA,mmE ; mmA=(00 10 20 30 02 12 22 32)
+ punpckhwd mmC,mmE ; mmC=(04 14 24 34 06 16 26 36)
+ movq mmG,mmB
+ punpcklwd mmB,mmF ; mmB=(01 11 21 31 03 13 23 33)
+ punpckhwd mmG,mmF ; mmG=(05 15 25 35 07 17 27 37)
+
+ movq mmD,mmA
+ punpckldq mmA,mmB ; mmA=(00 10 20 30 01 11 21 31)
+ punpckhdq mmD,mmB ; mmD=(02 12 22 32 03 13 23 33)
+ movq mmH,mmC
+ punpckldq mmC,mmG ; mmC=(04 14 24 34 05 15 25 35)
+ punpckhdq mmH,mmG ; mmH=(06 16 26 36 07 17 27 37)
+
+ cmp ecx, byte SIZEOF_MMWORD
+ jb short .column_st16
+
+ movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
+ movq MMWORD [edi+1*SIZEOF_MMWORD], mmD
+ movq MMWORD [edi+2*SIZEOF_MMWORD], mmC
+ movq MMWORD [edi+3*SIZEOF_MMWORD], mmH
+
+ sub ecx, byte SIZEOF_MMWORD
+ jz short .nextrow
+
+ add esi, byte SIZEOF_MMWORD ; inptr0
+ add ebx, byte SIZEOF_MMWORD ; inptr1
+ add edx, byte SIZEOF_MMWORD ; inptr2
+ add edi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; outptr
+ jmp near .columnloop
+ alignx 16,7
+
+.column_st16:
+ cmp ecx, byte SIZEOF_MMWORD/2
+ jb short .column_st8
+ movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
+ movq MMWORD [edi+1*SIZEOF_MMWORD], mmD
+ movq mmA,mmC
+ movq mmD,mmH
+ sub ecx, byte SIZEOF_MMWORD/2
+ add edi, byte 2*SIZEOF_MMWORD
+.column_st8:
+ cmp ecx, byte SIZEOF_MMWORD/4
+ jb short .column_st4
+ movq MMWORD [edi+0*SIZEOF_MMWORD], mmA
+ movq mmA,mmD
+ sub ecx, byte SIZEOF_MMWORD/4
+ add edi, byte 1*SIZEOF_MMWORD
+.column_st4:
+ cmp ecx, byte SIZEOF_MMWORD/8
+ jb short .nextrow
+ movd DWORD [edi+0*SIZEOF_DWORD], mmA
+
+%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
+
+ emms ; empty MMX state
+
+.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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