| Index: simd/jidctflt-3dn.asm
|
| diff --git a/simd/jidctflt-3dn.asm b/simd/jidctflt-3dn.asm
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..24bd10599a3826627a26e934e2b6ba17b1492660
|
| --- /dev/null
|
| +++ b/simd/jidctflt-3dn.asm
|
| @@ -0,0 +1,452 @@
|
| +;
|
| +; jidctflt.asm - floating-point IDCT (3DNow! & 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
|
| +;
|
| +; This file contains a floating-point implementation of the inverse DCT
|
| +; (Discrete Cosine Transform). The following code is based directly on
|
| +; the IJG's original jidctflt.c; see the jidctflt.c for more details.
|
| +;
|
| +; [TAB8]
|
| +
|
| +%include "jsimdext.inc"
|
| +%include "jdct.inc"
|
| +
|
| +; --------------------------------------------------------------------------
|
| + SECTION SEG_CONST
|
| +
|
| + alignz 16
|
| + global EXTN(jconst_idct_float_3dnow)
|
| +
|
| +EXTN(jconst_idct_float_3dnow):
|
| +
|
| +PD_1_414 times 2 dd 1.414213562373095048801689
|
| +PD_1_847 times 2 dd 1.847759065022573512256366
|
| +PD_1_082 times 2 dd 1.082392200292393968799446
|
| +PD_2_613 times 2 dd 2.613125929752753055713286
|
| +PD_RNDINT_MAGIC times 2 dd 100663296.0 ; (float)(0x00C00000 << 3)
|
| +PB_CENTERJSAMP times 8 db CENTERJSAMPLE
|
| +
|
| + alignz 16
|
| +
|
| +; --------------------------------------------------------------------------
|
| + SECTION SEG_TEXT
|
| + BITS 32
|
| +;
|
| +; Perform dequantization and inverse DCT on one block of coefficients.
|
| +;
|
| +; GLOBAL(void)
|
| +; jsimd_idct_float_3dnow (void *dct_table, JCOEFPTR coef_block,
|
| +; JSAMPARRAY output_buf, JDIMENSION output_col)
|
| +;
|
| +
|
| +%define dct_table(b) (b)+8 ; void *dct_table
|
| +%define coef_block(b) (b)+12 ; JCOEFPTR coef_block
|
| +%define output_buf(b) (b)+16 ; JSAMPARRAY output_buf
|
| +%define output_col(b) (b)+20 ; JDIMENSION output_col
|
| +
|
| +%define original_ebp ebp+0
|
| +%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM]
|
| +%define WK_NUM 2
|
| +%define workspace wk(0)-DCTSIZE2*SIZEOF_FAST_FLOAT
|
| + ; FAST_FLOAT workspace[DCTSIZE2]
|
| +
|
| + align 16
|
| + global EXTN(jsimd_idct_float_3dnow)
|
| +
|
| +EXTN(jsimd_idct_float_3dnow):
|
| + 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, [workspace]
|
| + push ebx
|
| +; push ecx ; need not be preserved
|
| +; push edx ; need not be preserved
|
| + push esi
|
| + push edi
|
| +
|
| + get_GOT ebx ; get GOT address
|
| +
|
| + ; ---- Pass 1: process columns from input, store into work array.
|
| +
|
| +; mov eax, [original_ebp]
|
| + mov edx, POINTER [dct_table(eax)] ; quantptr
|
| + mov esi, JCOEFPTR [coef_block(eax)] ; inptr
|
| + lea edi, [workspace] ; FAST_FLOAT *wsptr
|
| + mov ecx, DCTSIZE/2 ; ctr
|
| + alignx 16,7
|
| +.columnloop:
|
| +%ifndef NO_ZERO_COLUMN_TEST_FLOAT_3DNOW
|
| + mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
|
| + or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
|
| + jnz short .columnDCT
|
| +
|
| + pushpic ebx ; save GOT address
|
| + mov ebx, DWORD [DWBLOCK(3,0,esi,SIZEOF_JCOEF)]
|
| + mov eax, DWORD [DWBLOCK(4,0,esi,SIZEOF_JCOEF)]
|
| + or ebx, DWORD [DWBLOCK(5,0,esi,SIZEOF_JCOEF)]
|
| + or eax, DWORD [DWBLOCK(6,0,esi,SIZEOF_JCOEF)]
|
| + or ebx, DWORD [DWBLOCK(7,0,esi,SIZEOF_JCOEF)]
|
| + or eax,ebx
|
| + poppic ebx ; restore GOT address
|
| + jnz short .columnDCT
|
| +
|
| + ; -- AC terms all zero
|
| +
|
| + movd mm0, DWORD [DWBLOCK(0,0,esi,SIZEOF_JCOEF)]
|
| +
|
| + punpcklwd mm0,mm0
|
| + psrad mm0,(DWORD_BIT-WORD_BIT)
|
| + pi2fd mm0,mm0
|
| +
|
| + pfmul mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| +
|
| + movq mm1,mm0
|
| + punpckldq mm0,mm0
|
| + punpckhdq mm1,mm1
|
| +
|
| + movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], mm0
|
| + movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], mm0
|
| + movq MMWORD [MMBLOCK(0,2,edi,SIZEOF_FAST_FLOAT)], mm0
|
| + movq MMWORD [MMBLOCK(0,3,edi,SIZEOF_FAST_FLOAT)], mm0
|
| + movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], mm1
|
| + movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], mm1
|
| + movq MMWORD [MMBLOCK(1,2,edi,SIZEOF_FAST_FLOAT)], mm1
|
| + movq MMWORD [MMBLOCK(1,3,edi,SIZEOF_FAST_FLOAT)], mm1
|
| + jmp near .nextcolumn
|
| + alignx 16,7
|
| +%endif
|
| +.columnDCT:
|
| +
|
| + ; -- Even part
|
| +
|
| + movd mm0, DWORD [DWBLOCK(0,0,esi,SIZEOF_JCOEF)]
|
| + movd mm1, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
|
| + movd mm2, DWORD [DWBLOCK(4,0,esi,SIZEOF_JCOEF)]
|
| + movd mm3, DWORD [DWBLOCK(6,0,esi,SIZEOF_JCOEF)]
|
| +
|
| + punpcklwd mm0,mm0
|
| + punpcklwd mm1,mm1
|
| + psrad mm0,(DWORD_BIT-WORD_BIT)
|
| + psrad mm1,(DWORD_BIT-WORD_BIT)
|
| + pi2fd mm0,mm0
|
| + pi2fd mm1,mm1
|
| +
|
| + pfmul mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| + pfmul mm1, MMWORD [MMBLOCK(2,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| +
|
| + punpcklwd mm2,mm2
|
| + punpcklwd mm3,mm3
|
| + psrad mm2,(DWORD_BIT-WORD_BIT)
|
| + psrad mm3,(DWORD_BIT-WORD_BIT)
|
| + pi2fd mm2,mm2
|
| + pi2fd mm3,mm3
|
| +
|
| + pfmul mm2, MMWORD [MMBLOCK(4,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| + pfmul mm3, MMWORD [MMBLOCK(6,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| +
|
| + movq mm4,mm0
|
| + movq mm5,mm1
|
| + pfsub mm0,mm2 ; mm0=tmp11
|
| + pfsub mm1,mm3
|
| + pfadd mm4,mm2 ; mm4=tmp10
|
| + pfadd mm5,mm3 ; mm5=tmp13
|
| +
|
| + pfmul mm1,[GOTOFF(ebx,PD_1_414)]
|
| + pfsub mm1,mm5 ; mm1=tmp12
|
| +
|
| + movq mm6,mm4
|
| + movq mm7,mm0
|
| + pfsub mm4,mm5 ; mm4=tmp3
|
| + pfsub mm0,mm1 ; mm0=tmp2
|
| + pfadd mm6,mm5 ; mm6=tmp0
|
| + pfadd mm7,mm1 ; mm7=tmp1
|
| +
|
| + movq MMWORD [wk(1)], mm4 ; tmp3
|
| + movq MMWORD [wk(0)], mm0 ; tmp2
|
| +
|
| + ; -- Odd part
|
| +
|
| + movd mm2, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
|
| + movd mm3, DWORD [DWBLOCK(3,0,esi,SIZEOF_JCOEF)]
|
| + movd mm5, DWORD [DWBLOCK(5,0,esi,SIZEOF_JCOEF)]
|
| + movd mm1, DWORD [DWBLOCK(7,0,esi,SIZEOF_JCOEF)]
|
| +
|
| + punpcklwd mm2,mm2
|
| + punpcklwd mm3,mm3
|
| + psrad mm2,(DWORD_BIT-WORD_BIT)
|
| + psrad mm3,(DWORD_BIT-WORD_BIT)
|
| + pi2fd mm2,mm2
|
| + pi2fd mm3,mm3
|
| +
|
| + pfmul mm2, MMWORD [MMBLOCK(1,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| + pfmul mm3, MMWORD [MMBLOCK(3,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| +
|
| + punpcklwd mm5,mm5
|
| + punpcklwd mm1,mm1
|
| + psrad mm5,(DWORD_BIT-WORD_BIT)
|
| + psrad mm1,(DWORD_BIT-WORD_BIT)
|
| + pi2fd mm5,mm5
|
| + pi2fd mm1,mm1
|
| +
|
| + pfmul mm5, MMWORD [MMBLOCK(5,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| + pfmul mm1, MMWORD [MMBLOCK(7,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
|
| +
|
| + movq mm4,mm2
|
| + movq mm0,mm5
|
| + pfadd mm2,mm1 ; mm2=z11
|
| + pfadd mm5,mm3 ; mm5=z13
|
| + pfsub mm4,mm1 ; mm4=z12
|
| + pfsub mm0,mm3 ; mm0=z10
|
| +
|
| + movq mm1,mm2
|
| + pfsub mm2,mm5
|
| + pfadd mm1,mm5 ; mm1=tmp7
|
| +
|
| + pfmul mm2,[GOTOFF(ebx,PD_1_414)] ; mm2=tmp11
|
| +
|
| + movq mm3,mm0
|
| + pfadd mm0,mm4
|
| + pfmul mm0,[GOTOFF(ebx,PD_1_847)] ; mm0=z5
|
| + pfmul mm3,[GOTOFF(ebx,PD_2_613)] ; mm3=(z10 * 2.613125930)
|
| + pfmul mm4,[GOTOFF(ebx,PD_1_082)] ; mm4=(z12 * 1.082392200)
|
| + pfsubr mm3,mm0 ; mm3=tmp12
|
| + pfsub mm4,mm0 ; mm4=tmp10
|
| +
|
| + ; -- Final output stage
|
| +
|
| + pfsub mm3,mm1 ; mm3=tmp6
|
| + movq mm5,mm6
|
| + movq mm0,mm7
|
| + pfadd mm6,mm1 ; mm6=data0=(00 01)
|
| + pfadd mm7,mm3 ; mm7=data1=(10 11)
|
| + pfsub mm5,mm1 ; mm5=data7=(70 71)
|
| + pfsub mm0,mm3 ; mm0=data6=(60 61)
|
| + pfsub mm2,mm3 ; mm2=tmp5
|
| +
|
| + movq mm1,mm6 ; transpose coefficients
|
| + punpckldq mm6,mm7 ; mm6=(00 10)
|
| + punpckhdq mm1,mm7 ; mm1=(01 11)
|
| + movq mm3,mm0 ; transpose coefficients
|
| + punpckldq mm0,mm5 ; mm0=(60 70)
|
| + punpckhdq mm3,mm5 ; mm3=(61 71)
|
| +
|
| + movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], mm6
|
| + movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], mm1
|
| + movq MMWORD [MMBLOCK(0,3,edi,SIZEOF_FAST_FLOAT)], mm0
|
| + movq MMWORD [MMBLOCK(1,3,edi,SIZEOF_FAST_FLOAT)], mm3
|
| +
|
| + movq mm7, MMWORD [wk(0)] ; mm7=tmp2
|
| + movq mm5, MMWORD [wk(1)] ; mm5=tmp3
|
| +
|
| + pfadd mm4,mm2 ; mm4=tmp4
|
| + movq mm6,mm7
|
| + movq mm1,mm5
|
| + pfadd mm7,mm2 ; mm7=data2=(20 21)
|
| + pfadd mm5,mm4 ; mm5=data4=(40 41)
|
| + pfsub mm6,mm2 ; mm6=data5=(50 51)
|
| + pfsub mm1,mm4 ; mm1=data3=(30 31)
|
| +
|
| + movq mm0,mm7 ; transpose coefficients
|
| + punpckldq mm7,mm1 ; mm7=(20 30)
|
| + punpckhdq mm0,mm1 ; mm0=(21 31)
|
| + movq mm3,mm5 ; transpose coefficients
|
| + punpckldq mm5,mm6 ; mm5=(40 50)
|
| + punpckhdq mm3,mm6 ; mm3=(41 51)
|
| +
|
| + movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], mm7
|
| + movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], mm0
|
| + movq MMWORD [MMBLOCK(0,2,edi,SIZEOF_FAST_FLOAT)], mm5
|
| + movq MMWORD [MMBLOCK(1,2,edi,SIZEOF_FAST_FLOAT)], mm3
|
| +
|
| +.nextcolumn:
|
| + add esi, byte 2*SIZEOF_JCOEF ; coef_block
|
| + add edx, byte 2*SIZEOF_FLOAT_MULT_TYPE ; quantptr
|
| + add edi, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT ; wsptr
|
| + dec ecx ; ctr
|
| + jnz near .columnloop
|
| +
|
| + ; -- Prefetch the next coefficient block
|
| +
|
| + prefetch [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 0*32]
|
| + prefetch [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 1*32]
|
| + prefetch [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 2*32]
|
| + prefetch [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 3*32]
|
| +
|
| + ; ---- Pass 2: process rows from work array, store into output array.
|
| +
|
| + mov eax, [original_ebp]
|
| + lea esi, [workspace] ; FAST_FLOAT *wsptr
|
| + mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *)
|
| + mov eax, JDIMENSION [output_col(eax)]
|
| + mov ecx, DCTSIZE/2 ; ctr
|
| + alignx 16,7
|
| +.rowloop:
|
| +
|
| + ; -- Even part
|
| +
|
| + movq mm0, MMWORD [MMBLOCK(0,0,esi,SIZEOF_FAST_FLOAT)]
|
| + movq mm1, MMWORD [MMBLOCK(2,0,esi,SIZEOF_FAST_FLOAT)]
|
| + movq mm2, MMWORD [MMBLOCK(4,0,esi,SIZEOF_FAST_FLOAT)]
|
| + movq mm3, MMWORD [MMBLOCK(6,0,esi,SIZEOF_FAST_FLOAT)]
|
| +
|
| + movq mm4,mm0
|
| + movq mm5,mm1
|
| + pfsub mm0,mm2 ; mm0=tmp11
|
| + pfsub mm1,mm3
|
| + pfadd mm4,mm2 ; mm4=tmp10
|
| + pfadd mm5,mm3 ; mm5=tmp13
|
| +
|
| + pfmul mm1,[GOTOFF(ebx,PD_1_414)]
|
| + pfsub mm1,mm5 ; mm1=tmp12
|
| +
|
| + movq mm6,mm4
|
| + movq mm7,mm0
|
| + pfsub mm4,mm5 ; mm4=tmp3
|
| + pfsub mm0,mm1 ; mm0=tmp2
|
| + pfadd mm6,mm5 ; mm6=tmp0
|
| + pfadd mm7,mm1 ; mm7=tmp1
|
| +
|
| + movq MMWORD [wk(1)], mm4 ; tmp3
|
| + movq MMWORD [wk(0)], mm0 ; tmp2
|
| +
|
| + ; -- Odd part
|
| +
|
| + movq mm2, MMWORD [MMBLOCK(1,0,esi,SIZEOF_FAST_FLOAT)]
|
| + movq mm3, MMWORD [MMBLOCK(3,0,esi,SIZEOF_FAST_FLOAT)]
|
| + movq mm5, MMWORD [MMBLOCK(5,0,esi,SIZEOF_FAST_FLOAT)]
|
| + movq mm1, MMWORD [MMBLOCK(7,0,esi,SIZEOF_FAST_FLOAT)]
|
| +
|
| + movq mm4,mm2
|
| + movq mm0,mm5
|
| + pfadd mm2,mm1 ; mm2=z11
|
| + pfadd mm5,mm3 ; mm5=z13
|
| + pfsub mm4,mm1 ; mm4=z12
|
| + pfsub mm0,mm3 ; mm0=z10
|
| +
|
| + movq mm1,mm2
|
| + pfsub mm2,mm5
|
| + pfadd mm1,mm5 ; mm1=tmp7
|
| +
|
| + pfmul mm2,[GOTOFF(ebx,PD_1_414)] ; mm2=tmp11
|
| +
|
| + movq mm3,mm0
|
| + pfadd mm0,mm4
|
| + pfmul mm0,[GOTOFF(ebx,PD_1_847)] ; mm0=z5
|
| + pfmul mm3,[GOTOFF(ebx,PD_2_613)] ; mm3=(z10 * 2.613125930)
|
| + pfmul mm4,[GOTOFF(ebx,PD_1_082)] ; mm4=(z12 * 1.082392200)
|
| + pfsubr mm3,mm0 ; mm3=tmp12
|
| + pfsub mm4,mm0 ; mm4=tmp10
|
| +
|
| + ; -- Final output stage
|
| +
|
| + pfsub mm3,mm1 ; mm3=tmp6
|
| + movq mm5,mm6
|
| + movq mm0,mm7
|
| + pfadd mm6,mm1 ; mm6=data0=(00 10)
|
| + pfadd mm7,mm3 ; mm7=data1=(01 11)
|
| + pfsub mm5,mm1 ; mm5=data7=(07 17)
|
| + pfsub mm0,mm3 ; mm0=data6=(06 16)
|
| + pfsub mm2,mm3 ; mm2=tmp5
|
| +
|
| + movq mm1,[GOTOFF(ebx,PD_RNDINT_MAGIC)] ; mm1=[PD_RNDINT_MAGIC]
|
| + pcmpeqd mm3,mm3
|
| + psrld mm3,WORD_BIT ; mm3={0xFFFF 0x0000 0xFFFF 0x0000}
|
| +
|
| + pfadd mm6,mm1 ; mm6=roundint(data0/8)=(00 ** 10 **)
|
| + pfadd mm7,mm1 ; mm7=roundint(data1/8)=(01 ** 11 **)
|
| + pfadd mm0,mm1 ; mm0=roundint(data6/8)=(06 ** 16 **)
|
| + pfadd mm5,mm1 ; mm5=roundint(data7/8)=(07 ** 17 **)
|
| +
|
| + pand mm6,mm3 ; mm6=(00 -- 10 --)
|
| + pslld mm7,WORD_BIT ; mm7=(-- 01 -- 11)
|
| + pand mm0,mm3 ; mm0=(06 -- 16 --)
|
| + pslld mm5,WORD_BIT ; mm5=(-- 07 -- 17)
|
| + por mm6,mm7 ; mm6=(00 01 10 11)
|
| + por mm0,mm5 ; mm0=(06 07 16 17)
|
| +
|
| + movq mm1, MMWORD [wk(0)] ; mm1=tmp2
|
| + movq mm3, MMWORD [wk(1)] ; mm3=tmp3
|
| +
|
| + pfadd mm4,mm2 ; mm4=tmp4
|
| + movq mm7,mm1
|
| + movq mm5,mm3
|
| + pfadd mm1,mm2 ; mm1=data2=(02 12)
|
| + pfadd mm3,mm4 ; mm3=data4=(04 14)
|
| + pfsub mm7,mm2 ; mm7=data5=(05 15)
|
| + pfsub mm5,mm4 ; mm5=data3=(03 13)
|
| +
|
| + movq mm2,[GOTOFF(ebx,PD_RNDINT_MAGIC)] ; mm2=[PD_RNDINT_MAGIC]
|
| + pcmpeqd mm4,mm4
|
| + psrld mm4,WORD_BIT ; mm4={0xFFFF 0x0000 0xFFFF 0x0000}
|
| +
|
| + pfadd mm3,mm2 ; mm3=roundint(data4/8)=(04 ** 14 **)
|
| + pfadd mm7,mm2 ; mm7=roundint(data5/8)=(05 ** 15 **)
|
| + pfadd mm1,mm2 ; mm1=roundint(data2/8)=(02 ** 12 **)
|
| + pfadd mm5,mm2 ; mm5=roundint(data3/8)=(03 ** 13 **)
|
| +
|
| + pand mm3,mm4 ; mm3=(04 -- 14 --)
|
| + pslld mm7,WORD_BIT ; mm7=(-- 05 -- 15)
|
| + pand mm1,mm4 ; mm1=(02 -- 12 --)
|
| + pslld mm5,WORD_BIT ; mm5=(-- 03 -- 13)
|
| + por mm3,mm7 ; mm3=(04 05 14 15)
|
| + por mm1,mm5 ; mm1=(02 03 12 13)
|
| +
|
| + movq mm2,[GOTOFF(ebx,PB_CENTERJSAMP)] ; mm2=[PB_CENTERJSAMP]
|
| +
|
| + packsswb mm6,mm3 ; mm6=(00 01 10 11 04 05 14 15)
|
| + packsswb mm1,mm0 ; mm1=(02 03 12 13 06 07 16 17)
|
| + paddb mm6,mm2
|
| + paddb mm1,mm2
|
| +
|
| + movq mm4,mm6 ; transpose coefficients(phase 2)
|
| + punpcklwd mm6,mm1 ; mm6=(00 01 02 03 10 11 12 13)
|
| + punpckhwd mm4,mm1 ; mm4=(04 05 06 07 14 15 16 17)
|
| +
|
| + movq mm7,mm6 ; transpose coefficients(phase 3)
|
| + punpckldq mm6,mm4 ; mm6=(00 01 02 03 04 05 06 07)
|
| + punpckhdq mm7,mm4 ; mm7=(10 11 12 13 14 15 16 17)
|
| +
|
| + pushpic ebx ; save GOT address
|
| +
|
| + mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
|
| + mov ebx, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
|
| + movq MMWORD [edx+eax*SIZEOF_JSAMPLE], mm6
|
| + movq MMWORD [ebx+eax*SIZEOF_JSAMPLE], mm7
|
| +
|
| + poppic ebx ; restore GOT address
|
| +
|
| + add esi, byte 2*SIZEOF_FAST_FLOAT ; wsptr
|
| + add edi, byte 2*SIZEOF_JSAMPROW
|
| + dec ecx ; ctr
|
| + jnz near .rowloop
|
| +
|
| + femms ; empty MMX/3DNow! state
|
| +
|
| + 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
|
|
|