| ; |
| ; jiss2int.asm - accurate integer IDCT (SSE2) |
| ; |
| ; 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 slow-but-accurate integer implementation of the |
| ; inverse DCT (Discrete Cosine Transform). The following code is based |
| ; directly on the IJG's original jidctint.c; see the jidctint.c for |
| ; more details. |
| ; |
| ; [TAB8] |
| |
| %include "jsimdext.inc" |
| %include "jdct.inc" |
| |
| ; -------------------------------------------------------------------------- |
| |
| %define CONST_BITS 13 |
| %define PASS1_BITS 2 |
| |
| %define DESCALE_P1 (CONST_BITS-PASS1_BITS) |
| %define DESCALE_P2 (CONST_BITS+PASS1_BITS+3) |
| |
| %if CONST_BITS == 13 |
| F_0_298 equ 2446 ; FIX(0.298631336) |
| F_0_390 equ 3196 ; FIX(0.390180644) |
| F_0_541 equ 4433 ; FIX(0.541196100) |
| F_0_765 equ 6270 ; FIX(0.765366865) |
| F_0_899 equ 7373 ; FIX(0.899976223) |
| F_1_175 equ 9633 ; FIX(1.175875602) |
| F_1_501 equ 12299 ; FIX(1.501321110) |
| F_1_847 equ 15137 ; FIX(1.847759065) |
| F_1_961 equ 16069 ; FIX(1.961570560) |
| F_2_053 equ 16819 ; FIX(2.053119869) |
| F_2_562 equ 20995 ; FIX(2.562915447) |
| F_3_072 equ 25172 ; FIX(3.072711026) |
| %else |
| ; NASM cannot do compile-time arithmetic on floating-point constants. |
| %define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n)) |
| F_0_298 equ DESCALE( 320652955,30-CONST_BITS) ; FIX(0.298631336) |
| F_0_390 equ DESCALE( 418953276,30-CONST_BITS) ; FIX(0.390180644) |
| F_0_541 equ DESCALE( 581104887,30-CONST_BITS) ; FIX(0.541196100) |
| F_0_765 equ DESCALE( 821806413,30-CONST_BITS) ; FIX(0.765366865) |
| F_0_899 equ DESCALE( 966342111,30-CONST_BITS) ; FIX(0.899976223) |
| F_1_175 equ DESCALE(1262586813,30-CONST_BITS) ; FIX(1.175875602) |
| F_1_501 equ DESCALE(1612031267,30-CONST_BITS) ; FIX(1.501321110) |
| F_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065) |
| F_1_961 equ DESCALE(2106220350,30-CONST_BITS) ; FIX(1.961570560) |
| F_2_053 equ DESCALE(2204520673,30-CONST_BITS) ; FIX(2.053119869) |
| F_2_562 equ DESCALE(2751909506,30-CONST_BITS) ; FIX(2.562915447) |
| F_3_072 equ DESCALE(3299298341,30-CONST_BITS) ; FIX(3.072711026) |
| %endif |
| |
| ; -------------------------------------------------------------------------- |
| SECTION SEG_CONST |
| |
| alignz 16 |
| global EXTN(jconst_idct_islow_sse2) |
| |
| EXTN(jconst_idct_islow_sse2): |
| |
| PW_F130_F054 times 4 dw (F_0_541+F_0_765), F_0_541 |
| PW_F054_MF130 times 4 dw F_0_541, (F_0_541-F_1_847) |
| PW_MF078_F117 times 4 dw (F_1_175-F_1_961), F_1_175 |
| PW_F117_F078 times 4 dw F_1_175, (F_1_175-F_0_390) |
| PW_MF060_MF089 times 4 dw (F_0_298-F_0_899),-F_0_899 |
| PW_MF089_F060 times 4 dw -F_0_899, (F_1_501-F_0_899) |
| PW_MF050_MF256 times 4 dw (F_2_053-F_2_562),-F_2_562 |
| PW_MF256_F050 times 4 dw -F_2_562, (F_3_072-F_2_562) |
| PD_DESCALE_P1 times 4 dd 1 << (DESCALE_P1-1) |
| PD_DESCALE_P2 times 4 dd 1 << (DESCALE_P2-1) |
| 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_islow_sse2 (void * dct_table, JCOEFPTR coef_block, |
| ; JSAMPARRAY output_buf, JDIMENSION output_col) |
| ; |
| |
| %define dct_table(b) (b)+8 ; jpeg_component_info * compptr |
| %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 12 |
| |
| align 16 |
| global EXTN(jsimd_idct_islow_sse2) |
| |
| EXTN(jsimd_idct_islow_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 ebx |
| ; push ecx ; unused |
| ; push edx ; need not be preserved |
| push esi |
| push edi |
| |
| get_GOT ebx ; get GOT address |
| |
| ; ---- Pass 1: process columns from input. |
| |
| ; mov eax, [original_ebp] |
| mov edx, POINTER [dct_table(eax)] ; quantptr |
| mov esi, JCOEFPTR [coef_block(eax)] ; inptr |
| |
| %ifndef NO_ZERO_COLUMN_TEST_ISLOW_SSE2 |
| mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)] |
| or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)] |
| jnz near .columnDCT |
| |
| movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)] |
| movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)] |
| por xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)] |
| por xmm1, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)] |
| por xmm0, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)] |
| por xmm1, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)] |
| por xmm0, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)] |
| por xmm1,xmm0 |
| packsswb xmm1,xmm1 |
| packsswb xmm1,xmm1 |
| movd eax,xmm1 |
| test eax,eax |
| jnz short .columnDCT |
| |
| ; -- AC terms all zero |
| |
| movdqa xmm5, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)] |
| pmullw xmm5, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| |
| psllw xmm5,PASS1_BITS |
| |
| movdqa xmm4,xmm5 ; xmm5=in0=(00 01 02 03 04 05 06 07) |
| punpcklwd xmm5,xmm5 ; xmm5=(00 00 01 01 02 02 03 03) |
| punpckhwd xmm4,xmm4 ; xmm4=(04 04 05 05 06 06 07 07) |
| |
| pshufd xmm7,xmm5,0x00 ; xmm7=col0=(00 00 00 00 00 00 00 00) |
| pshufd xmm6,xmm5,0x55 ; xmm6=col1=(01 01 01 01 01 01 01 01) |
| pshufd xmm1,xmm5,0xAA ; xmm1=col2=(02 02 02 02 02 02 02 02) |
| pshufd xmm5,xmm5,0xFF ; xmm5=col3=(03 03 03 03 03 03 03 03) |
| pshufd xmm0,xmm4,0x00 ; xmm0=col4=(04 04 04 04 04 04 04 04) |
| pshufd xmm3,xmm4,0x55 ; xmm3=col5=(05 05 05 05 05 05 05 05) |
| pshufd xmm2,xmm4,0xAA ; xmm2=col6=(06 06 06 06 06 06 06 06) |
| pshufd xmm4,xmm4,0xFF ; xmm4=col7=(07 07 07 07 07 07 07 07) |
| |
| movdqa XMMWORD [wk(8)], xmm6 ; wk(8)=col1 |
| movdqa XMMWORD [wk(9)], xmm5 ; wk(9)=col3 |
| movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5 |
| movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7 |
| jmp near .column_end |
| alignx 16,7 |
| %endif |
| .columnDCT: |
| |
| ; -- Even part |
| |
| movdqa xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)] |
| movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)] |
| pmullw xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| pmullw xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| movdqa xmm2, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)] |
| movdqa xmm3, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)] |
| pmullw xmm2, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| pmullw xmm3, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| |
| ; (Original) |
| ; z1 = (z2 + z3) * 0.541196100; |
| ; tmp2 = z1 + z3 * -1.847759065; |
| ; tmp3 = z1 + z2 * 0.765366865; |
| ; |
| ; (This implementation) |
| ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065); |
| ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100; |
| |
| movdqa xmm4,xmm1 ; xmm1=in2=z2 |
| movdqa xmm5,xmm1 |
| punpcklwd xmm4,xmm3 ; xmm3=in6=z3 |
| punpckhwd xmm5,xmm3 |
| movdqa xmm1,xmm4 |
| movdqa xmm3,xmm5 |
| pmaddwd xmm4,[GOTOFF(ebx,PW_F130_F054)] ; xmm4=tmp3L |
| pmaddwd xmm5,[GOTOFF(ebx,PW_F130_F054)] ; xmm5=tmp3H |
| pmaddwd xmm1,[GOTOFF(ebx,PW_F054_MF130)] ; xmm1=tmp2L |
| pmaddwd xmm3,[GOTOFF(ebx,PW_F054_MF130)] ; xmm3=tmp2H |
| |
| movdqa xmm6,xmm0 |
| paddw xmm0,xmm2 ; xmm0=in0+in4 |
| psubw xmm6,xmm2 ; xmm6=in0-in4 |
| |
| pxor xmm7,xmm7 |
| pxor xmm2,xmm2 |
| punpcklwd xmm7,xmm0 ; xmm7=tmp0L |
| punpckhwd xmm2,xmm0 ; xmm2=tmp0H |
| psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS |
| psrad xmm2,(16-CONST_BITS) ; psrad xmm2,16 & pslld xmm2,CONST_BITS |
| |
| movdqa xmm0,xmm7 |
| paddd xmm7,xmm4 ; xmm7=tmp10L |
| psubd xmm0,xmm4 ; xmm0=tmp13L |
| movdqa xmm4,xmm2 |
| paddd xmm2,xmm5 ; xmm2=tmp10H |
| psubd xmm4,xmm5 ; xmm4=tmp13H |
| |
| movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=tmp10L |
| movdqa XMMWORD [wk(1)], xmm2 ; wk(1)=tmp10H |
| movdqa XMMWORD [wk(2)], xmm0 ; wk(2)=tmp13L |
| movdqa XMMWORD [wk(3)], xmm4 ; wk(3)=tmp13H |
| |
| pxor xmm5,xmm5 |
| pxor xmm7,xmm7 |
| punpcklwd xmm5,xmm6 ; xmm5=tmp1L |
| punpckhwd xmm7,xmm6 ; xmm7=tmp1H |
| psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS |
| psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS |
| |
| movdqa xmm2,xmm5 |
| paddd xmm5,xmm1 ; xmm5=tmp11L |
| psubd xmm2,xmm1 ; xmm2=tmp12L |
| movdqa xmm0,xmm7 |
| paddd xmm7,xmm3 ; xmm7=tmp11H |
| psubd xmm0,xmm3 ; xmm0=tmp12H |
| |
| movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L |
| movdqa XMMWORD [wk(5)], xmm7 ; wk(5)=tmp11H |
| movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=tmp12L |
| movdqa XMMWORD [wk(7)], xmm0 ; wk(7)=tmp12H |
| |
| ; -- Odd part |
| |
| movdqa xmm4, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)] |
| movdqa xmm6, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)] |
| pmullw xmm4, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| pmullw xmm6, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| movdqa xmm1, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)] |
| movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)] |
| pmullw xmm1, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)] |
| |
| movdqa xmm5,xmm6 |
| movdqa xmm7,xmm4 |
| paddw xmm5,xmm3 ; xmm5=z3 |
| paddw xmm7,xmm1 ; xmm7=z4 |
| |
| ; (Original) |
| ; z5 = (z3 + z4) * 1.175875602; |
| ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644; |
| ; z3 += z5; z4 += z5; |
| ; |
| ; (This implementation) |
| ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602; |
| ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644); |
| |
| movdqa xmm2,xmm5 |
| movdqa xmm0,xmm5 |
| punpcklwd xmm2,xmm7 |
| punpckhwd xmm0,xmm7 |
| movdqa xmm5,xmm2 |
| movdqa xmm7,xmm0 |
| pmaddwd xmm2,[GOTOFF(ebx,PW_MF078_F117)] ; xmm2=z3L |
| pmaddwd xmm0,[GOTOFF(ebx,PW_MF078_F117)] ; xmm0=z3H |
| pmaddwd xmm5,[GOTOFF(ebx,PW_F117_F078)] ; xmm5=z4L |
| pmaddwd xmm7,[GOTOFF(ebx,PW_F117_F078)] ; xmm7=z4H |
| |
| movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=z3L |
| movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=z3H |
| |
| ; (Original) |
| ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2; |
| ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869; |
| ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110; |
| ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447; |
| ; tmp0 += z1 + z3; tmp1 += z2 + z4; |
| ; tmp2 += z2 + z3; tmp3 += z1 + z4; |
| ; |
| ; (This implementation) |
| ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223; |
| ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447; |
| ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447); |
| ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223); |
| ; tmp0 += z3; tmp1 += z4; |
| ; tmp2 += z3; tmp3 += z4; |
| |
| movdqa xmm2,xmm3 |
| movdqa xmm0,xmm3 |
| punpcklwd xmm2,xmm4 |
| punpckhwd xmm0,xmm4 |
| movdqa xmm3,xmm2 |
| movdqa xmm4,xmm0 |
| pmaddwd xmm2,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm2=tmp0L |
| pmaddwd xmm0,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm0=tmp0H |
| pmaddwd xmm3,[GOTOFF(ebx,PW_MF089_F060)] ; xmm3=tmp3L |
| pmaddwd xmm4,[GOTOFF(ebx,PW_MF089_F060)] ; xmm4=tmp3H |
| |
| paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp0L |
| paddd xmm0, XMMWORD [wk(11)] ; xmm0=tmp0H |
| paddd xmm3,xmm5 ; xmm3=tmp3L |
| paddd xmm4,xmm7 ; xmm4=tmp3H |
| |
| movdqa XMMWORD [wk(8)], xmm2 ; wk(8)=tmp0L |
| movdqa XMMWORD [wk(9)], xmm0 ; wk(9)=tmp0H |
| |
| movdqa xmm2,xmm1 |
| movdqa xmm0,xmm1 |
| punpcklwd xmm2,xmm6 |
| punpckhwd xmm0,xmm6 |
| movdqa xmm1,xmm2 |
| movdqa xmm6,xmm0 |
| pmaddwd xmm2,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm2=tmp1L |
| pmaddwd xmm0,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm0=tmp1H |
| pmaddwd xmm1,[GOTOFF(ebx,PW_MF256_F050)] ; xmm1=tmp2L |
| pmaddwd xmm6,[GOTOFF(ebx,PW_MF256_F050)] ; xmm6=tmp2H |
| |
| paddd xmm2,xmm5 ; xmm2=tmp1L |
| paddd xmm0,xmm7 ; xmm0=tmp1H |
| paddd xmm1, XMMWORD [wk(10)] ; xmm1=tmp2L |
| paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H |
| |
| movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=tmp1L |
| movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=tmp1H |
| |
| ; -- Final output stage |
| |
| movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L |
| movdqa xmm7, XMMWORD [wk(1)] ; xmm7=tmp10H |
| |
| movdqa xmm2,xmm5 |
| movdqa xmm0,xmm7 |
| paddd xmm5,xmm3 ; xmm5=data0L |
| paddd xmm7,xmm4 ; xmm7=data0H |
| psubd xmm2,xmm3 ; xmm2=data7L |
| psubd xmm0,xmm4 ; xmm0=data7H |
| |
| movdqa xmm3,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm3=[PD_DESCALE_P1] |
| |
| paddd xmm5,xmm3 |
| paddd xmm7,xmm3 |
| psrad xmm5,DESCALE_P1 |
| psrad xmm7,DESCALE_P1 |
| paddd xmm2,xmm3 |
| paddd xmm0,xmm3 |
| psrad xmm2,DESCALE_P1 |
| psrad xmm0,DESCALE_P1 |
| |
| packssdw xmm5,xmm7 ; xmm5=data0=(00 01 02 03 04 05 06 07) |
| packssdw xmm2,xmm0 ; xmm2=data7=(70 71 72 73 74 75 76 77) |
| |
| movdqa xmm4, XMMWORD [wk(4)] ; xmm4=tmp11L |
| movdqa xmm3, XMMWORD [wk(5)] ; xmm3=tmp11H |
| |
| movdqa xmm7,xmm4 |
| movdqa xmm0,xmm3 |
| paddd xmm4,xmm1 ; xmm4=data1L |
| paddd xmm3,xmm6 ; xmm3=data1H |
| psubd xmm7,xmm1 ; xmm7=data6L |
| psubd xmm0,xmm6 ; xmm0=data6H |
| |
| movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm1=[PD_DESCALE_P1] |
| |
| paddd xmm4,xmm1 |
| paddd xmm3,xmm1 |
| psrad xmm4,DESCALE_P1 |
| psrad xmm3,DESCALE_P1 |
| paddd xmm7,xmm1 |
| paddd xmm0,xmm1 |
| psrad xmm7,DESCALE_P1 |
| psrad xmm0,DESCALE_P1 |
| |
| packssdw xmm4,xmm3 ; xmm4=data1=(10 11 12 13 14 15 16 17) |
| packssdw xmm7,xmm0 ; xmm7=data6=(60 61 62 63 64 65 66 67) |
| |
| movdqa xmm6,xmm5 ; transpose coefficients(phase 1) |
| punpcklwd xmm5,xmm4 ; xmm5=(00 10 01 11 02 12 03 13) |
| punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17) |
| movdqa xmm1,xmm7 ; transpose coefficients(phase 1) |
| punpcklwd xmm7,xmm2 ; xmm7=(60 70 61 71 62 72 63 73) |
| punpckhwd xmm1,xmm2 ; xmm1=(64 74 65 75 66 76 67 77) |
| |
| movdqa xmm3, XMMWORD [wk(6)] ; xmm3=tmp12L |
| movdqa xmm0, XMMWORD [wk(7)] ; xmm0=tmp12H |
| movdqa xmm4, XMMWORD [wk(10)] ; xmm4=tmp1L |
| movdqa xmm2, XMMWORD [wk(11)] ; xmm2=tmp1H |
| |
| movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 01 11 02 12 03 13) |
| movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=(04 14 05 15 06 16 07 17) |
| movdqa XMMWORD [wk(4)], xmm7 ; wk(4)=(60 70 61 71 62 72 63 73) |
| movdqa XMMWORD [wk(5)], xmm1 ; wk(5)=(64 74 65 75 66 76 67 77) |
| |
| movdqa xmm5,xmm3 |
| movdqa xmm6,xmm0 |
| paddd xmm3,xmm4 ; xmm3=data2L |
| paddd xmm0,xmm2 ; xmm0=data2H |
| psubd xmm5,xmm4 ; xmm5=data5L |
| psubd xmm6,xmm2 ; xmm6=data5H |
| |
| movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm7=[PD_DESCALE_P1] |
| |
| paddd xmm3,xmm7 |
| paddd xmm0,xmm7 |
| psrad xmm3,DESCALE_P1 |
| psrad xmm0,DESCALE_P1 |
| paddd xmm5,xmm7 |
| paddd xmm6,xmm7 |
| psrad xmm5,DESCALE_P1 |
| psrad xmm6,DESCALE_P1 |
| |
| packssdw xmm3,xmm0 ; xmm3=data2=(20 21 22 23 24 25 26 27) |
| packssdw xmm5,xmm6 ; xmm5=data5=(50 51 52 53 54 55 56 57) |
| |
| movdqa xmm1, XMMWORD [wk(2)] ; xmm1=tmp13L |
| movdqa xmm4, XMMWORD [wk(3)] ; xmm4=tmp13H |
| movdqa xmm2, XMMWORD [wk(8)] ; xmm2=tmp0L |
| movdqa xmm7, XMMWORD [wk(9)] ; xmm7=tmp0H |
| |
| movdqa xmm0,xmm1 |
| movdqa xmm6,xmm4 |
| paddd xmm1,xmm2 ; xmm1=data3L |
| paddd xmm4,xmm7 ; xmm4=data3H |
| psubd xmm0,xmm2 ; xmm0=data4L |
| psubd xmm6,xmm7 ; xmm6=data4H |
| |
| movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm2=[PD_DESCALE_P1] |
| |
| paddd xmm1,xmm2 |
| paddd xmm4,xmm2 |
| psrad xmm1,DESCALE_P1 |
| psrad xmm4,DESCALE_P1 |
| paddd xmm0,xmm2 |
| paddd xmm6,xmm2 |
| psrad xmm0,DESCALE_P1 |
| psrad xmm6,DESCALE_P1 |
| |
| packssdw xmm1,xmm4 ; xmm1=data3=(30 31 32 33 34 35 36 37) |
| packssdw xmm0,xmm6 ; xmm0=data4=(40 41 42 43 44 45 46 47) |
| |
| movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 01 11 02 12 03 13) |
| movdqa xmm2, XMMWORD [wk(1)] ; xmm2=(04 14 05 15 06 16 07 17) |
| |
| movdqa xmm4,xmm3 ; transpose coefficients(phase 1) |
| punpcklwd xmm3,xmm1 ; xmm3=(20 30 21 31 22 32 23 33) |
| punpckhwd xmm4,xmm1 ; xmm4=(24 34 25 35 26 36 27 37) |
| movdqa xmm6,xmm0 ; transpose coefficients(phase 1) |
| punpcklwd xmm0,xmm5 ; xmm0=(40 50 41 51 42 52 43 53) |
| punpckhwd xmm6,xmm5 ; xmm6=(44 54 45 55 46 56 47 57) |
| |
| movdqa xmm1,xmm7 ; transpose coefficients(phase 2) |
| punpckldq xmm7,xmm3 ; xmm7=(00 10 20 30 01 11 21 31) |
| punpckhdq xmm1,xmm3 ; xmm1=(02 12 22 32 03 13 23 33) |
| movdqa xmm5,xmm2 ; transpose coefficients(phase 2) |
| punpckldq xmm2,xmm4 ; xmm2=(04 14 24 34 05 15 25 35) |
| punpckhdq xmm5,xmm4 ; xmm5=(06 16 26 36 07 17 27 37) |
| |
| movdqa xmm3, XMMWORD [wk(4)] ; xmm3=(60 70 61 71 62 72 63 73) |
| movdqa xmm4, XMMWORD [wk(5)] ; xmm4=(64 74 65 75 66 76 67 77) |
| |
| movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=(04 14 24 34 05 15 25 35) |
| movdqa XMMWORD [wk(7)], xmm5 ; wk(7)=(06 16 26 36 07 17 27 37) |
| |
| movdqa xmm2,xmm0 ; transpose coefficients(phase 2) |
| punpckldq xmm0,xmm3 ; xmm0=(40 50 60 70 41 51 61 71) |
| punpckhdq xmm2,xmm3 ; xmm2=(42 52 62 72 43 53 63 73) |
| movdqa xmm5,xmm6 ; transpose coefficients(phase 2) |
| punpckldq xmm6,xmm4 ; xmm6=(44 54 64 74 45 55 65 75) |
| punpckhdq xmm5,xmm4 ; xmm5=(46 56 66 76 47 57 67 77) |
| |
| movdqa xmm3,xmm7 ; transpose coefficients(phase 3) |
| punpcklqdq xmm7,xmm0 ; xmm7=col0=(00 10 20 30 40 50 60 70) |
| punpckhqdq xmm3,xmm0 ; xmm3=col1=(01 11 21 31 41 51 61 71) |
| movdqa xmm4,xmm1 ; transpose coefficients(phase 3) |
| punpcklqdq xmm1,xmm2 ; xmm1=col2=(02 12 22 32 42 52 62 72) |
| punpckhqdq xmm4,xmm2 ; xmm4=col3=(03 13 23 33 43 53 63 73) |
| |
| movdqa xmm0, XMMWORD [wk(6)] ; xmm0=(04 14 24 34 05 15 25 35) |
| movdqa xmm2, XMMWORD [wk(7)] ; xmm2=(06 16 26 36 07 17 27 37) |
| |
| movdqa XMMWORD [wk(8)], xmm3 ; wk(8)=col1 |
| movdqa XMMWORD [wk(9)], xmm4 ; wk(9)=col3 |
| |
| movdqa xmm3,xmm0 ; transpose coefficients(phase 3) |
| punpcklqdq xmm0,xmm6 ; xmm0=col4=(04 14 24 34 44 54 64 74) |
| punpckhqdq xmm3,xmm6 ; xmm3=col5=(05 15 25 35 45 55 65 75) |
| movdqa xmm4,xmm2 ; transpose coefficients(phase 3) |
| punpcklqdq xmm2,xmm5 ; xmm2=col6=(06 16 26 36 46 56 66 76) |
| punpckhqdq xmm4,xmm5 ; xmm4=col7=(07 17 27 37 47 57 67 77) |
| |
| movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5 |
| movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7 |
| .column_end: |
| |
| ; -- Prefetch the next coefficient block |
| |
| prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32] |
| prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32] |
| prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32] |
| prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32] |
| |
| ; ---- Pass 2: process rows from work array, store into output array. |
| |
| mov eax, [original_ebp] |
| mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *) |
| mov eax, JDIMENSION [output_col(eax)] |
| |
| ; -- Even part |
| |
| ; xmm7=col0, xmm1=col2, xmm0=col4, xmm2=col6 |
| |
| ; (Original) |
| ; z1 = (z2 + z3) * 0.541196100; |
| ; tmp2 = z1 + z3 * -1.847759065; |
| ; tmp3 = z1 + z2 * 0.765366865; |
| ; |
| ; (This implementation) |
| ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065); |
| ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100; |
| |
| movdqa xmm6,xmm1 ; xmm1=in2=z2 |
| movdqa xmm5,xmm1 |
| punpcklwd xmm6,xmm2 ; xmm2=in6=z3 |
| punpckhwd xmm5,xmm2 |
| movdqa xmm1,xmm6 |
| movdqa xmm2,xmm5 |
| pmaddwd xmm6,[GOTOFF(ebx,PW_F130_F054)] ; xmm6=tmp3L |
| pmaddwd xmm5,[GOTOFF(ebx,PW_F130_F054)] ; xmm5=tmp3H |
| pmaddwd xmm1,[GOTOFF(ebx,PW_F054_MF130)] ; xmm1=tmp2L |
| pmaddwd xmm2,[GOTOFF(ebx,PW_F054_MF130)] ; xmm2=tmp2H |
| |
| movdqa xmm3,xmm7 |
| paddw xmm7,xmm0 ; xmm7=in0+in4 |
| psubw xmm3,xmm0 ; xmm3=in0-in4 |
| |
| pxor xmm4,xmm4 |
| pxor xmm0,xmm0 |
| punpcklwd xmm4,xmm7 ; xmm4=tmp0L |
| punpckhwd xmm0,xmm7 ; xmm0=tmp0H |
| psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS |
| psrad xmm0,(16-CONST_BITS) ; psrad xmm0,16 & pslld xmm0,CONST_BITS |
| |
| movdqa xmm7,xmm4 |
| paddd xmm4,xmm6 ; xmm4=tmp10L |
| psubd xmm7,xmm6 ; xmm7=tmp13L |
| movdqa xmm6,xmm0 |
| paddd xmm0,xmm5 ; xmm0=tmp10H |
| psubd xmm6,xmm5 ; xmm6=tmp13H |
| |
| movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=tmp10L |
| movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp10H |
| movdqa XMMWORD [wk(2)], xmm7 ; wk(2)=tmp13L |
| movdqa XMMWORD [wk(3)], xmm6 ; wk(3)=tmp13H |
| |
| pxor xmm5,xmm5 |
| pxor xmm4,xmm4 |
| punpcklwd xmm5,xmm3 ; xmm5=tmp1L |
| punpckhwd xmm4,xmm3 ; xmm4=tmp1H |
| psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS |
| psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS |
| |
| movdqa xmm0,xmm5 |
| paddd xmm5,xmm1 ; xmm5=tmp11L |
| psubd xmm0,xmm1 ; xmm0=tmp12L |
| movdqa xmm7,xmm4 |
| paddd xmm4,xmm2 ; xmm4=tmp11H |
| psubd xmm7,xmm2 ; xmm7=tmp12H |
| |
| movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L |
| movdqa XMMWORD [wk(5)], xmm4 ; wk(5)=tmp11H |
| movdqa XMMWORD [wk(6)], xmm0 ; wk(6)=tmp12L |
| movdqa XMMWORD [wk(7)], xmm7 ; wk(7)=tmp12H |
| |
| ; -- Odd part |
| |
| movdqa xmm6, XMMWORD [wk(9)] ; xmm6=col3 |
| movdqa xmm3, XMMWORD [wk(8)] ; xmm3=col1 |
| movdqa xmm1, XMMWORD [wk(11)] ; xmm1=col7 |
| movdqa xmm2, XMMWORD [wk(10)] ; xmm2=col5 |
| |
| movdqa xmm5,xmm6 |
| movdqa xmm4,xmm3 |
| paddw xmm5,xmm1 ; xmm5=z3 |
| paddw xmm4,xmm2 ; xmm4=z4 |
| |
| ; (Original) |
| ; z5 = (z3 + z4) * 1.175875602; |
| ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644; |
| ; z3 += z5; z4 += z5; |
| ; |
| ; (This implementation) |
| ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602; |
| ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644); |
| |
| movdqa xmm0,xmm5 |
| movdqa xmm7,xmm5 |
| punpcklwd xmm0,xmm4 |
| punpckhwd xmm7,xmm4 |
| movdqa xmm5,xmm0 |
| movdqa xmm4,xmm7 |
| pmaddwd xmm0,[GOTOFF(ebx,PW_MF078_F117)] ; xmm0=z3L |
| pmaddwd xmm7,[GOTOFF(ebx,PW_MF078_F117)] ; xmm7=z3H |
| pmaddwd xmm5,[GOTOFF(ebx,PW_F117_F078)] ; xmm5=z4L |
| pmaddwd xmm4,[GOTOFF(ebx,PW_F117_F078)] ; xmm4=z4H |
| |
| movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=z3L |
| movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=z3H |
| |
| ; (Original) |
| ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2; |
| ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869; |
| ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110; |
| ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447; |
| ; tmp0 += z1 + z3; tmp1 += z2 + z4; |
| ; tmp2 += z2 + z3; tmp3 += z1 + z4; |
| ; |
| ; (This implementation) |
| ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223; |
| ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447; |
| ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447); |
| ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223); |
| ; tmp0 += z3; tmp1 += z4; |
| ; tmp2 += z3; tmp3 += z4; |
| |
| movdqa xmm0,xmm1 |
| movdqa xmm7,xmm1 |
| punpcklwd xmm0,xmm3 |
| punpckhwd xmm7,xmm3 |
| movdqa xmm1,xmm0 |
| movdqa xmm3,xmm7 |
| pmaddwd xmm0,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm0=tmp0L |
| pmaddwd xmm7,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm7=tmp0H |
| pmaddwd xmm1,[GOTOFF(ebx,PW_MF089_F060)] ; xmm1=tmp3L |
| pmaddwd xmm3,[GOTOFF(ebx,PW_MF089_F060)] ; xmm3=tmp3H |
| |
| paddd xmm0, XMMWORD [wk(10)] ; xmm0=tmp0L |
| paddd xmm7, XMMWORD [wk(11)] ; xmm7=tmp0H |
| paddd xmm1,xmm5 ; xmm1=tmp3L |
| paddd xmm3,xmm4 ; xmm3=tmp3H |
| |
| movdqa XMMWORD [wk(8)], xmm0 ; wk(8)=tmp0L |
| movdqa XMMWORD [wk(9)], xmm7 ; wk(9)=tmp0H |
| |
| movdqa xmm0,xmm2 |
| movdqa xmm7,xmm2 |
| punpcklwd xmm0,xmm6 |
| punpckhwd xmm7,xmm6 |
| movdqa xmm2,xmm0 |
| movdqa xmm6,xmm7 |
| pmaddwd xmm0,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm0=tmp1L |
| pmaddwd xmm7,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm7=tmp1H |
| pmaddwd xmm2,[GOTOFF(ebx,PW_MF256_F050)] ; xmm2=tmp2L |
| pmaddwd xmm6,[GOTOFF(ebx,PW_MF256_F050)] ; xmm6=tmp2H |
| |
| paddd xmm0,xmm5 ; xmm0=tmp1L |
| paddd xmm7,xmm4 ; xmm7=tmp1H |
| paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp2L |
| paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H |
| |
| movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=tmp1L |
| movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=tmp1H |
| |
| ; -- Final output stage |
| |
| movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L |
| movdqa xmm4, XMMWORD [wk(1)] ; xmm4=tmp10H |
| |
| movdqa xmm0,xmm5 |
| movdqa xmm7,xmm4 |
| paddd xmm5,xmm1 ; xmm5=data0L |
| paddd xmm4,xmm3 ; xmm4=data0H |
| psubd xmm0,xmm1 ; xmm0=data7L |
| psubd xmm7,xmm3 ; xmm7=data7H |
| |
| movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm1=[PD_DESCALE_P2] |
| |
| paddd xmm5,xmm1 |
| paddd xmm4,xmm1 |
| psrad xmm5,DESCALE_P2 |
| psrad xmm4,DESCALE_P2 |
| paddd xmm0,xmm1 |
| paddd xmm7,xmm1 |
| psrad xmm0,DESCALE_P2 |
| psrad xmm7,DESCALE_P2 |
| |
| packssdw xmm5,xmm4 ; xmm5=data0=(00 10 20 30 40 50 60 70) |
| packssdw xmm0,xmm7 ; xmm0=data7=(07 17 27 37 47 57 67 77) |
| |
| movdqa xmm3, XMMWORD [wk(4)] ; xmm3=tmp11L |
| movdqa xmm1, XMMWORD [wk(5)] ; xmm1=tmp11H |
| |
| movdqa xmm4,xmm3 |
| movdqa xmm7,xmm1 |
| paddd xmm3,xmm2 ; xmm3=data1L |
| paddd xmm1,xmm6 ; xmm1=data1H |
| psubd xmm4,xmm2 ; xmm4=data6L |
| psubd xmm7,xmm6 ; xmm7=data6H |
| |
| movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm2=[PD_DESCALE_P2] |
| |
| paddd xmm3,xmm2 |
| paddd xmm1,xmm2 |
| psrad xmm3,DESCALE_P2 |
| psrad xmm1,DESCALE_P2 |
| paddd xmm4,xmm2 |
| paddd xmm7,xmm2 |
| psrad xmm4,DESCALE_P2 |
| psrad xmm7,DESCALE_P2 |
| |
| packssdw xmm3,xmm1 ; xmm3=data1=(01 11 21 31 41 51 61 71) |
| packssdw xmm4,xmm7 ; xmm4=data6=(06 16 26 36 46 56 66 76) |
| |
| packsswb xmm5,xmm4 ; xmm5=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76) |
| packsswb xmm3,xmm0 ; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77) |
| |
| movdqa xmm6, XMMWORD [wk(6)] ; xmm6=tmp12L |
| movdqa xmm2, XMMWORD [wk(7)] ; xmm2=tmp12H |
| movdqa xmm1, XMMWORD [wk(10)] ; xmm1=tmp1L |
| movdqa xmm7, XMMWORD [wk(11)] ; xmm7=tmp1H |
| |
| movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76) |
| movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77) |
| |
| movdqa xmm4,xmm6 |
| movdqa xmm0,xmm2 |
| paddd xmm6,xmm1 ; xmm6=data2L |
| paddd xmm2,xmm7 ; xmm2=data2H |
| psubd xmm4,xmm1 ; xmm4=data5L |
| psubd xmm0,xmm7 ; xmm0=data5H |
| |
| movdqa xmm5,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm5=[PD_DESCALE_P2] |
| |
| paddd xmm6,xmm5 |
| paddd xmm2,xmm5 |
| psrad xmm6,DESCALE_P2 |
| psrad xmm2,DESCALE_P2 |
| paddd xmm4,xmm5 |
| paddd xmm0,xmm5 |
| psrad xmm4,DESCALE_P2 |
| psrad xmm0,DESCALE_P2 |
| |
| packssdw xmm6,xmm2 ; xmm6=data2=(02 12 22 32 42 52 62 72) |
| packssdw xmm4,xmm0 ; xmm4=data5=(05 15 25 35 45 55 65 75) |
| |
| movdqa xmm3, XMMWORD [wk(2)] ; xmm3=tmp13L |
| movdqa xmm1, XMMWORD [wk(3)] ; xmm1=tmp13H |
| movdqa xmm7, XMMWORD [wk(8)] ; xmm7=tmp0L |
| movdqa xmm5, XMMWORD [wk(9)] ; xmm5=tmp0H |
| |
| movdqa xmm2,xmm3 |
| movdqa xmm0,xmm1 |
| paddd xmm3,xmm7 ; xmm3=data3L |
| paddd xmm1,xmm5 ; xmm1=data3H |
| psubd xmm2,xmm7 ; xmm2=data4L |
| psubd xmm0,xmm5 ; xmm0=data4H |
| |
| movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm7=[PD_DESCALE_P2] |
| |
| paddd xmm3,xmm7 |
| paddd xmm1,xmm7 |
| psrad xmm3,DESCALE_P2 |
| psrad xmm1,DESCALE_P2 |
| paddd xmm2,xmm7 |
| paddd xmm0,xmm7 |
| psrad xmm2,DESCALE_P2 |
| psrad xmm0,DESCALE_P2 |
| |
| movdqa xmm5,[GOTOFF(ebx,PB_CENTERJSAMP)] ; xmm5=[PB_CENTERJSAMP] |
| |
| packssdw xmm3,xmm1 ; xmm3=data3=(03 13 23 33 43 53 63 73) |
| packssdw xmm2,xmm0 ; xmm2=data4=(04 14 24 34 44 54 64 74) |
| |
| movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76) |
| movdqa xmm1, XMMWORD [wk(1)] ; xmm1=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77) |
| |
| packsswb xmm6,xmm2 ; xmm6=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74) |
| packsswb xmm3,xmm4 ; xmm3=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75) |
| |
| paddb xmm7,xmm5 |
| paddb xmm1,xmm5 |
| paddb xmm6,xmm5 |
| paddb xmm3,xmm5 |
| |
| movdqa xmm0,xmm7 ; transpose coefficients(phase 1) |
| punpcklbw xmm7,xmm1 ; xmm7=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71) |
| punpckhbw xmm0,xmm1 ; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77) |
| movdqa xmm2,xmm6 ; transpose coefficients(phase 1) |
| punpcklbw xmm6,xmm3 ; xmm6=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73) |
| punpckhbw xmm2,xmm3 ; xmm2=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75) |
| |
| movdqa xmm4,xmm7 ; transpose coefficients(phase 2) |
| punpcklwd xmm7,xmm6 ; xmm7=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33) |
| punpckhwd xmm4,xmm6 ; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73) |
| movdqa xmm5,xmm2 ; transpose coefficients(phase 2) |
| punpcklwd xmm2,xmm0 ; xmm2=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37) |
| punpckhwd xmm5,xmm0 ; xmm5=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77) |
| |
| movdqa xmm1,xmm7 ; transpose coefficients(phase 3) |
| punpckldq xmm7,xmm2 ; xmm7=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17) |
| punpckhdq xmm1,xmm2 ; xmm1=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37) |
| movdqa xmm3,xmm4 ; transpose coefficients(phase 3) |
| punpckldq xmm4,xmm5 ; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57) |
| punpckhdq xmm3,xmm5 ; xmm3=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77) |
| |
| pshufd xmm6,xmm7,0x4E ; xmm6=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07) |
| pshufd xmm0,xmm1,0x4E ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27) |
| pshufd xmm2,xmm4,0x4E ; xmm2=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47) |
| pshufd xmm5,xmm3,0x4E ; xmm5=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67) |
| |
| mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] |
| mov esi, JSAMPROW [edi+2*SIZEOF_JSAMPROW] |
| movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm7 |
| movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm1 |
| mov edx, JSAMPROW [edi+4*SIZEOF_JSAMPROW] |
| mov esi, JSAMPROW [edi+6*SIZEOF_JSAMPROW] |
| movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm4 |
| movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm3 |
| |
| mov edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW] |
| mov esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW] |
| movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6 |
| movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm0 |
| mov edx, JSAMPROW [edi+5*SIZEOF_JSAMPROW] |
| mov esi, JSAMPROW [edi+7*SIZEOF_JSAMPROW] |
| movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm2 |
| movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm5 |
| |
| pop edi |
| pop esi |
| ; pop edx ; need not be preserved |
| ; pop ecx ; unused |
| poppic 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 |
