diff options
Diffstat (limited to 'media/libjpeg/simd/jidctflt-sse2.asm')
-rw-r--r-- | media/libjpeg/simd/jidctflt-sse2.asm | 497 |
1 files changed, 0 insertions, 497 deletions
diff --git a/media/libjpeg/simd/jidctflt-sse2.asm b/media/libjpeg/simd/jidctflt-sse2.asm deleted file mode 100644 index a15a9c1111..0000000000 --- a/media/libjpeg/simd/jidctflt-sse2.asm +++ /dev/null @@ -1,497 +0,0 @@ -; -; jidctflt.asm - floating-point IDCT (SSE & SSE2) -; -; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB -; -; Based on the 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" - -; -------------------------------------------------------------------------- - -%macro unpcklps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(0 1 4 5) - shufps %1,%2,0x44 -%endmacro - -%macro unpckhps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(2 3 6 7) - shufps %1,%2,0xEE -%endmacro - -; -------------------------------------------------------------------------- - SECTION SEG_CONST - - alignz 16 - global EXTN(jconst_idct_float_sse2) - -EXTN(jconst_idct_float_sse2): - -PD_1_414 times 4 dd 1.414213562373095048801689 -PD_1_847 times 4 dd 1.847759065022573512256366 -PD_1_082 times 4 dd 1.082392200292393968799446 -PD_M2_613 times 4 dd -2.613125929752753055713286 -PD_RNDINT_MAGIC times 4 dd 100663296.0 ; (float)(0x00C00000 << 3) -PB_CENTERJSAMP times 16 db CENTERJSAMPLE - - alignz 16 - -; -------------------------------------------------------------------------- - SECTION SEG_TEXT - BITS 32 -; -; Perform dequantization and inverse DCT on one block of coefficients. -; -; GLOBAL(void) -; jsimd_idct_float_sse2 (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_XMMWORD ; xmmword 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_sse2) - -EXTN(jsimd_idct_float_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, [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/4 ; ctr - alignx 16,7 -.columnloop: -%ifndef NO_ZERO_COLUMN_TEST_FLOAT_SSE - mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)] - or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)] - jnz near .columnDCT - - movq xmm1, XMM_MMWORD [MMBLOCK(1,0,esi,SIZEOF_JCOEF)] - movq xmm2, XMM_MMWORD [MMBLOCK(2,0,esi,SIZEOF_JCOEF)] - movq xmm3, XMM_MMWORD [MMBLOCK(3,0,esi,SIZEOF_JCOEF)] - movq xmm4, XMM_MMWORD [MMBLOCK(4,0,esi,SIZEOF_JCOEF)] - movq xmm5, XMM_MMWORD [MMBLOCK(5,0,esi,SIZEOF_JCOEF)] - movq xmm6, XMM_MMWORD [MMBLOCK(6,0,esi,SIZEOF_JCOEF)] - movq xmm7, XMM_MMWORD [MMBLOCK(7,0,esi,SIZEOF_JCOEF)] - por xmm1,xmm2 - por xmm3,xmm4 - por xmm5,xmm6 - por xmm1,xmm3 - por xmm5,xmm7 - por xmm1,xmm5 - packsswb xmm1,xmm1 - movd eax,xmm1 - test eax,eax - jnz short .columnDCT - - ; -- AC terms all zero - - movq xmm0, XMM_MMWORD [MMBLOCK(0,0,esi,SIZEOF_JCOEF)] - - punpcklwd xmm0,xmm0 ; xmm0=(00 00 01 01 02 02 03 03) - psrad xmm0,(DWORD_BIT-WORD_BIT) ; xmm0=in0=(00 01 02 03) - cvtdq2ps xmm0,xmm0 ; xmm0=in0=(00 01 02 03) - - mulps xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - - movaps xmm1,xmm0 - movaps xmm2,xmm0 - movaps xmm3,xmm0 - - shufps xmm0,xmm0,0x00 ; xmm0=(00 00 00 00) - shufps xmm1,xmm1,0x55 ; xmm1=(01 01 01 01) - shufps xmm2,xmm2,0xAA ; xmm2=(02 02 02 02) - shufps xmm3,xmm3,0xFF ; xmm3=(03 03 03 03) - - movaps XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], xmm0 - movaps XMMWORD [XMMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], xmm0 - movaps XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], xmm1 - movaps XMMWORD [XMMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], xmm1 - movaps XMMWORD [XMMBLOCK(2,0,edi,SIZEOF_FAST_FLOAT)], xmm2 - movaps XMMWORD [XMMBLOCK(2,1,edi,SIZEOF_FAST_FLOAT)], xmm2 - movaps XMMWORD [XMMBLOCK(3,0,edi,SIZEOF_FAST_FLOAT)], xmm3 - movaps XMMWORD [XMMBLOCK(3,1,edi,SIZEOF_FAST_FLOAT)], xmm3 - jmp near .nextcolumn - alignx 16,7 -%endif -.columnDCT: - - ; -- Even part - - movq xmm0, XMM_MMWORD [MMBLOCK(0,0,esi,SIZEOF_JCOEF)] - movq xmm1, XMM_MMWORD [MMBLOCK(2,0,esi,SIZEOF_JCOEF)] - movq xmm2, XMM_MMWORD [MMBLOCK(4,0,esi,SIZEOF_JCOEF)] - movq xmm3, XMM_MMWORD [MMBLOCK(6,0,esi,SIZEOF_JCOEF)] - - punpcklwd xmm0,xmm0 ; xmm0=(00 00 01 01 02 02 03 03) - punpcklwd xmm1,xmm1 ; xmm1=(20 20 21 21 22 22 23 23) - psrad xmm0,(DWORD_BIT-WORD_BIT) ; xmm0=in0=(00 01 02 03) - psrad xmm1,(DWORD_BIT-WORD_BIT) ; xmm1=in2=(20 21 22 23) - cvtdq2ps xmm0,xmm0 ; xmm0=in0=(00 01 02 03) - cvtdq2ps xmm1,xmm1 ; xmm1=in2=(20 21 22 23) - - punpcklwd xmm2,xmm2 ; xmm2=(40 40 41 41 42 42 43 43) - punpcklwd xmm3,xmm3 ; xmm3=(60 60 61 61 62 62 63 63) - psrad xmm2,(DWORD_BIT-WORD_BIT) ; xmm2=in4=(40 41 42 43) - psrad xmm3,(DWORD_BIT-WORD_BIT) ; xmm3=in6=(60 61 62 63) - cvtdq2ps xmm2,xmm2 ; xmm2=in4=(40 41 42 43) - cvtdq2ps xmm3,xmm3 ; xmm3=in6=(60 61 62 63) - - mulps xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - mulps xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - mulps xmm2, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - mulps xmm3, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - - movaps xmm4,xmm0 - movaps xmm5,xmm1 - subps xmm0,xmm2 ; xmm0=tmp11 - subps xmm1,xmm3 - addps xmm4,xmm2 ; xmm4=tmp10 - addps xmm5,xmm3 ; xmm5=tmp13 - - mulps xmm1,[GOTOFF(ebx,PD_1_414)] - subps xmm1,xmm5 ; xmm1=tmp12 - - movaps xmm6,xmm4 - movaps xmm7,xmm0 - subps xmm4,xmm5 ; xmm4=tmp3 - subps xmm0,xmm1 ; xmm0=tmp2 - addps xmm6,xmm5 ; xmm6=tmp0 - addps xmm7,xmm1 ; xmm7=tmp1 - - movaps XMMWORD [wk(1)], xmm4 ; tmp3 - movaps XMMWORD [wk(0)], xmm0 ; tmp2 - - ; -- Odd part - - movq xmm2, XMM_MMWORD [MMBLOCK(1,0,esi,SIZEOF_JCOEF)] - movq xmm3, XMM_MMWORD [MMBLOCK(3,0,esi,SIZEOF_JCOEF)] - movq xmm5, XMM_MMWORD [MMBLOCK(5,0,esi,SIZEOF_JCOEF)] - movq xmm1, XMM_MMWORD [MMBLOCK(7,0,esi,SIZEOF_JCOEF)] - - punpcklwd xmm2,xmm2 ; xmm2=(10 10 11 11 12 12 13 13) - punpcklwd xmm3,xmm3 ; xmm3=(30 30 31 31 32 32 33 33) - psrad xmm2,(DWORD_BIT-WORD_BIT) ; xmm2=in1=(10 11 12 13) - psrad xmm3,(DWORD_BIT-WORD_BIT) ; xmm3=in3=(30 31 32 33) - cvtdq2ps xmm2,xmm2 ; xmm2=in1=(10 11 12 13) - cvtdq2ps xmm3,xmm3 ; xmm3=in3=(30 31 32 33) - - punpcklwd xmm5,xmm5 ; xmm5=(50 50 51 51 52 52 53 53) - punpcklwd xmm1,xmm1 ; xmm1=(70 70 71 71 72 72 73 73) - psrad xmm5,(DWORD_BIT-WORD_BIT) ; xmm5=in5=(50 51 52 53) - psrad xmm1,(DWORD_BIT-WORD_BIT) ; xmm1=in7=(70 71 72 73) - cvtdq2ps xmm5,xmm5 ; xmm5=in5=(50 51 52 53) - cvtdq2ps xmm1,xmm1 ; xmm1=in7=(70 71 72 73) - - mulps xmm2, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - mulps xmm3, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - mulps xmm5, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - mulps xmm1, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_FLOAT_MULT_TYPE)] - - movaps xmm4,xmm2 - movaps xmm0,xmm5 - addps xmm2,xmm1 ; xmm2=z11 - addps xmm5,xmm3 ; xmm5=z13 - subps xmm4,xmm1 ; xmm4=z12 - subps xmm0,xmm3 ; xmm0=z10 - - movaps xmm1,xmm2 - subps xmm2,xmm5 - addps xmm1,xmm5 ; xmm1=tmp7 - - mulps xmm2,[GOTOFF(ebx,PD_1_414)] ; xmm2=tmp11 - - movaps xmm3,xmm0 - addps xmm0,xmm4 - mulps xmm0,[GOTOFF(ebx,PD_1_847)] ; xmm0=z5 - mulps xmm3,[GOTOFF(ebx,PD_M2_613)] ; xmm3=(z10 * -2.613125930) - mulps xmm4,[GOTOFF(ebx,PD_1_082)] ; xmm4=(z12 * 1.082392200) - addps xmm3,xmm0 ; xmm3=tmp12 - subps xmm4,xmm0 ; xmm4=tmp10 - - ; -- Final output stage - - subps xmm3,xmm1 ; xmm3=tmp6 - movaps xmm5,xmm6 - movaps xmm0,xmm7 - addps xmm6,xmm1 ; xmm6=data0=(00 01 02 03) - addps xmm7,xmm3 ; xmm7=data1=(10 11 12 13) - subps xmm5,xmm1 ; xmm5=data7=(70 71 72 73) - subps xmm0,xmm3 ; xmm0=data6=(60 61 62 63) - subps xmm2,xmm3 ; xmm2=tmp5 - - movaps xmm1,xmm6 ; transpose coefficients(phase 1) - unpcklps xmm6,xmm7 ; xmm6=(00 10 01 11) - unpckhps xmm1,xmm7 ; xmm1=(02 12 03 13) - movaps xmm3,xmm0 ; transpose coefficients(phase 1) - unpcklps xmm0,xmm5 ; xmm0=(60 70 61 71) - unpckhps xmm3,xmm5 ; xmm3=(62 72 63 73) - - movaps xmm7, XMMWORD [wk(0)] ; xmm7=tmp2 - movaps xmm5, XMMWORD [wk(1)] ; xmm5=tmp3 - - movaps XMMWORD [wk(0)], xmm0 ; wk(0)=(60 70 61 71) - movaps XMMWORD [wk(1)], xmm3 ; wk(1)=(62 72 63 73) - - addps xmm4,xmm2 ; xmm4=tmp4 - movaps xmm0,xmm7 - movaps xmm3,xmm5 - addps xmm7,xmm2 ; xmm7=data2=(20 21 22 23) - addps xmm5,xmm4 ; xmm5=data4=(40 41 42 43) - subps xmm0,xmm2 ; xmm0=data5=(50 51 52 53) - subps xmm3,xmm4 ; xmm3=data3=(30 31 32 33) - - movaps xmm2,xmm7 ; transpose coefficients(phase 1) - unpcklps xmm7,xmm3 ; xmm7=(20 30 21 31) - unpckhps xmm2,xmm3 ; xmm2=(22 32 23 33) - movaps xmm4,xmm5 ; transpose coefficients(phase 1) - unpcklps xmm5,xmm0 ; xmm5=(40 50 41 51) - unpckhps xmm4,xmm0 ; xmm4=(42 52 43 53) - - movaps xmm3,xmm6 ; transpose coefficients(phase 2) - unpcklps2 xmm6,xmm7 ; xmm6=(00 10 20 30) - unpckhps2 xmm3,xmm7 ; xmm3=(01 11 21 31) - movaps xmm0,xmm1 ; transpose coefficients(phase 2) - unpcklps2 xmm1,xmm2 ; xmm1=(02 12 22 32) - unpckhps2 xmm0,xmm2 ; xmm0=(03 13 23 33) - - movaps xmm7, XMMWORD [wk(0)] ; xmm7=(60 70 61 71) - movaps xmm2, XMMWORD [wk(1)] ; xmm2=(62 72 63 73) - - movaps XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], xmm6 - movaps XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], xmm3 - movaps XMMWORD [XMMBLOCK(2,0,edi,SIZEOF_FAST_FLOAT)], xmm1 - movaps XMMWORD [XMMBLOCK(3,0,edi,SIZEOF_FAST_FLOAT)], xmm0 - - movaps xmm6,xmm5 ; transpose coefficients(phase 2) - unpcklps2 xmm5,xmm7 ; xmm5=(40 50 60 70) - unpckhps2 xmm6,xmm7 ; xmm6=(41 51 61 71) - movaps xmm3,xmm4 ; transpose coefficients(phase 2) - unpcklps2 xmm4,xmm2 ; xmm4=(42 52 62 72) - unpckhps2 xmm3,xmm2 ; xmm3=(43 53 63 73) - - movaps XMMWORD [XMMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], xmm5 - movaps XMMWORD [XMMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], xmm6 - movaps XMMWORD [XMMBLOCK(2,1,edi,SIZEOF_FAST_FLOAT)], xmm4 - movaps XMMWORD [XMMBLOCK(3,1,edi,SIZEOF_FAST_FLOAT)], xmm3 - -.nextcolumn: - add esi, byte 4*SIZEOF_JCOEF ; coef_block - add edx, byte 4*SIZEOF_FLOAT_MULT_TYPE ; quantptr - add edi, 4*DCTSIZE*SIZEOF_FAST_FLOAT ; wsptr - dec ecx ; ctr - jnz near .columnloop - - ; -- Prefetch the next coefficient block - - prefetchnta [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 0*32] - prefetchnta [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 1*32] - prefetchnta [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 2*32] - prefetchnta [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/4 ; ctr - alignx 16,7 -.rowloop: - - ; -- Even part - - movaps xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_FAST_FLOAT)] - movaps xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_FAST_FLOAT)] - movaps xmm2, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_FAST_FLOAT)] - movaps xmm3, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_FAST_FLOAT)] - - movaps xmm4,xmm0 - movaps xmm5,xmm1 - subps xmm0,xmm2 ; xmm0=tmp11 - subps xmm1,xmm3 - addps xmm4,xmm2 ; xmm4=tmp10 - addps xmm5,xmm3 ; xmm5=tmp13 - - mulps xmm1,[GOTOFF(ebx,PD_1_414)] - subps xmm1,xmm5 ; xmm1=tmp12 - - movaps xmm6,xmm4 - movaps xmm7,xmm0 - subps xmm4,xmm5 ; xmm4=tmp3 - subps xmm0,xmm1 ; xmm0=tmp2 - addps xmm6,xmm5 ; xmm6=tmp0 - addps xmm7,xmm1 ; xmm7=tmp1 - - movaps XMMWORD [wk(1)], xmm4 ; tmp3 - movaps XMMWORD [wk(0)], xmm0 ; tmp2 - - ; -- Odd part - - movaps xmm2, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_FAST_FLOAT)] - movaps xmm3, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_FAST_FLOAT)] - movaps xmm5, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_FAST_FLOAT)] - movaps xmm1, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_FAST_FLOAT)] - - movaps xmm4,xmm2 - movaps xmm0,xmm5 - addps xmm2,xmm1 ; xmm2=z11 - addps xmm5,xmm3 ; xmm5=z13 - subps xmm4,xmm1 ; xmm4=z12 - subps xmm0,xmm3 ; xmm0=z10 - - movaps xmm1,xmm2 - subps xmm2,xmm5 - addps xmm1,xmm5 ; xmm1=tmp7 - - mulps xmm2,[GOTOFF(ebx,PD_1_414)] ; xmm2=tmp11 - - movaps xmm3,xmm0 - addps xmm0,xmm4 - mulps xmm0,[GOTOFF(ebx,PD_1_847)] ; xmm0=z5 - mulps xmm3,[GOTOFF(ebx,PD_M2_613)] ; xmm3=(z10 * -2.613125930) - mulps xmm4,[GOTOFF(ebx,PD_1_082)] ; xmm4=(z12 * 1.082392200) - addps xmm3,xmm0 ; xmm3=tmp12 - subps xmm4,xmm0 ; xmm4=tmp10 - - ; -- Final output stage - - subps xmm3,xmm1 ; xmm3=tmp6 - movaps xmm5,xmm6 - movaps xmm0,xmm7 - addps xmm6,xmm1 ; xmm6=data0=(00 10 20 30) - addps xmm7,xmm3 ; xmm7=data1=(01 11 21 31) - subps xmm5,xmm1 ; xmm5=data7=(07 17 27 37) - subps xmm0,xmm3 ; xmm0=data6=(06 16 26 36) - subps xmm2,xmm3 ; xmm2=tmp5 - - movaps xmm1,[GOTOFF(ebx,PD_RNDINT_MAGIC)] ; xmm1=[PD_RNDINT_MAGIC] - pcmpeqd xmm3,xmm3 - psrld xmm3,WORD_BIT ; xmm3={0xFFFF 0x0000 0xFFFF 0x0000 ..} - - addps xmm6,xmm1 ; xmm6=roundint(data0/8)=(00 ** 10 ** 20 ** 30 **) - addps xmm7,xmm1 ; xmm7=roundint(data1/8)=(01 ** 11 ** 21 ** 31 **) - addps xmm0,xmm1 ; xmm0=roundint(data6/8)=(06 ** 16 ** 26 ** 36 **) - addps xmm5,xmm1 ; xmm5=roundint(data7/8)=(07 ** 17 ** 27 ** 37 **) - - pand xmm6,xmm3 ; xmm6=(00 -- 10 -- 20 -- 30 --) - pslld xmm7,WORD_BIT ; xmm7=(-- 01 -- 11 -- 21 -- 31) - pand xmm0,xmm3 ; xmm0=(06 -- 16 -- 26 -- 36 --) - pslld xmm5,WORD_BIT ; xmm5=(-- 07 -- 17 -- 27 -- 37) - por xmm6,xmm7 ; xmm6=(00 01 10 11 20 21 30 31) - por xmm0,xmm5 ; xmm0=(06 07 16 17 26 27 36 37) - - movaps xmm1, XMMWORD [wk(0)] ; xmm1=tmp2 - movaps xmm3, XMMWORD [wk(1)] ; xmm3=tmp3 - - addps xmm4,xmm2 ; xmm4=tmp4 - movaps xmm7,xmm1 - movaps xmm5,xmm3 - addps xmm1,xmm2 ; xmm1=data2=(02 12 22 32) - addps xmm3,xmm4 ; xmm3=data4=(04 14 24 34) - subps xmm7,xmm2 ; xmm7=data5=(05 15 25 35) - subps xmm5,xmm4 ; xmm5=data3=(03 13 23 33) - - movaps xmm2,[GOTOFF(ebx,PD_RNDINT_MAGIC)] ; xmm2=[PD_RNDINT_MAGIC] - pcmpeqd xmm4,xmm4 - psrld xmm4,WORD_BIT ; xmm4={0xFFFF 0x0000 0xFFFF 0x0000 ..} - - addps xmm3,xmm2 ; xmm3=roundint(data4/8)=(04 ** 14 ** 24 ** 34 **) - addps xmm7,xmm2 ; xmm7=roundint(data5/8)=(05 ** 15 ** 25 ** 35 **) - addps xmm1,xmm2 ; xmm1=roundint(data2/8)=(02 ** 12 ** 22 ** 32 **) - addps xmm5,xmm2 ; xmm5=roundint(data3/8)=(03 ** 13 ** 23 ** 33 **) - - pand xmm3,xmm4 ; xmm3=(04 -- 14 -- 24 -- 34 --) - pslld xmm7,WORD_BIT ; xmm7=(-- 05 -- 15 -- 25 -- 35) - pand xmm1,xmm4 ; xmm1=(02 -- 12 -- 22 -- 32 --) - pslld xmm5,WORD_BIT ; xmm5=(-- 03 -- 13 -- 23 -- 33) - por xmm3,xmm7 ; xmm3=(04 05 14 15 24 25 34 35) - por xmm1,xmm5 ; xmm1=(02 03 12 13 22 23 32 33) - - movdqa xmm2,[GOTOFF(ebx,PB_CENTERJSAMP)] ; xmm2=[PB_CENTERJSAMP] - - packsswb xmm6,xmm3 ; xmm6=(00 01 10 11 20 21 30 31 04 05 14 15 24 25 34 35) - packsswb xmm1,xmm0 ; xmm1=(02 03 12 13 22 23 32 33 06 07 16 17 26 27 36 37) - paddb xmm6,xmm2 - paddb xmm1,xmm2 - - movdqa xmm4,xmm6 ; transpose coefficients(phase 2) - punpcklwd xmm6,xmm1 ; xmm6=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33) - punpckhwd xmm4,xmm1 ; xmm4=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37) - - movdqa xmm7,xmm6 ; transpose coefficients(phase 3) - punpckldq xmm6,xmm4 ; xmm6=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17) - punpckhdq xmm7,xmm4 ; xmm7=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37) - - pshufd xmm5,xmm6,0x4E ; xmm5=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07) - pshufd xmm3,xmm7,0x4E ; xmm3=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27) - - pushpic ebx ; save GOT address - - mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] - mov ebx, JSAMPROW [edi+2*SIZEOF_JSAMPROW] - movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6 - movq XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE], xmm7 - mov edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW] - mov ebx, JSAMPROW [edi+3*SIZEOF_JSAMPROW] - movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm5 - movq XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE], xmm3 - - poppic ebx ; restore GOT address - - add esi, byte 4*SIZEOF_FAST_FLOAT ; wsptr - add edi, byte 4*SIZEOF_JSAMPROW - dec ecx ; ctr - jnz near .rowloop - - 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 |