1a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 272130be99f592adf302fb13682eea7b87352026cDRC; jidctred.asm - reduced-size IDCT (SSE2) 3a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 4eea72155259c61fe79d7b811330a9be91affca68Pierre Ossman; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB 5eea72155259c61fe79d7b811330a9be91affca68Pierre Ossman; 66eb7d3798b5a79347c62825fc4c16f7ce673bdd0Alex Naidis; Based on the x86 SIMD extension for IJG JPEG library 7a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; Copyright (C) 1999-2006, MIYASAKA Masaru. 8a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; For conditions of distribution and use, see copyright notice in jsimdext.inc 9a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 10a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; This file should be assembled with NASM (Netwide Assembler), 11a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; can *not* be assembled with Microsoft's MASM or any compatible 12a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; assembler (including Borland's Turbo Assembler). 13a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; NASM is available from http://nasm.sourceforge.net/ or 14a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; http://sourceforge.net/project/showfiles.php?group_id=6208 15a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 16a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; This file contains inverse-DCT routines that produce reduced-size 17a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; output: either 4x4 or 2x2 pixels from an 8x8 DCT block. 18a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; The following code is based directly on the IJG's original jidctred.c; 19a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; see the jidctred.c for more details. 20a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 21a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; [TAB8] 22a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 233a65ef478bebc51faa71fc86eece9620ed02611fPierre Ossman%include "jsimdext.inc" 243a65ef478bebc51faa71fc86eece9620ed02611fPierre Ossman%include "jdct.inc" 25a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 26a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; -------------------------------------------------------------------------- 27a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 28e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define CONST_BITS 13 29e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define PASS1_BITS 2 30a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 31e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define DESCALE_P1_4 (CONST_BITS-PASS1_BITS+1) 32e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define DESCALE_P2_4 (CONST_BITS+PASS1_BITS+3+1) 33e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define DESCALE_P1_2 (CONST_BITS-PASS1_BITS+2) 34e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define DESCALE_P2_2 (CONST_BITS+PASS1_BITS+3+2) 35a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 36a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru%if CONST_BITS == 13 37e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_211 equ 1730 ; FIX(0.211164243) 38e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_509 equ 4176 ; FIX(0.509795579) 39e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_601 equ 4926 ; FIX(0.601344887) 40e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_720 equ 5906 ; FIX(0.720959822) 41e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_765 equ 6270 ; FIX(0.765366865) 42e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_850 equ 6967 ; FIX(0.850430095) 43e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_899 equ 7373 ; FIX(0.899976223) 44e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_1_061 equ 8697 ; FIX(1.061594337) 45e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_1_272 equ 10426 ; FIX(1.272758580) 46e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_1_451 equ 11893 ; FIX(1.451774981) 47e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_1_847 equ 15137 ; FIX(1.847759065) 48e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_2_172 equ 17799 ; FIX(2.172734803) 49e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_2_562 equ 20995 ; FIX(2.562915447) 50e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_3_624 equ 29692 ; FIX(3.624509785) 51a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru%else 52a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; NASM cannot do compile-time arithmetic on floating-point constants. 53a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru%define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n)) 54e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_211 equ DESCALE( 226735879,30-CONST_BITS) ; FIX(0.211164243) 55e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_509 equ DESCALE( 547388834,30-CONST_BITS) ; FIX(0.509795579) 56e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_601 equ DESCALE( 645689155,30-CONST_BITS) ; FIX(0.601344887) 57e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_720 equ DESCALE( 774124714,30-CONST_BITS) ; FIX(0.720959822) 58e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_765 equ DESCALE( 821806413,30-CONST_BITS) ; FIX(0.765366865) 59e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_850 equ DESCALE( 913142361,30-CONST_BITS) ; FIX(0.850430095) 60e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_0_899 equ DESCALE( 966342111,30-CONST_BITS) ; FIX(0.899976223) 61e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_1_061 equ DESCALE(1139878239,30-CONST_BITS) ; FIX(1.061594337) 62e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_1_272 equ DESCALE(1366614119,30-CONST_BITS) ; FIX(1.272758580) 63e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_1_451 equ DESCALE(1558831516,30-CONST_BITS) ; FIX(1.451774981) 64e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065) 65e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_2_172 equ DESCALE(2332956230,30-CONST_BITS) ; FIX(2.172734803) 66e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_2_562 equ DESCALE(2751909506,30-CONST_BITS) ; FIX(2.562915447) 67e5eaf37440b8e337ab150c017df7c03faf846c51DRCF_3_624 equ DESCALE(3891787747,30-CONST_BITS) ; FIX(3.624509785) 68a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru%endif 69a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 70a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; -------------------------------------------------------------------------- 71e5eaf37440b8e337ab150c017df7c03faf846c51DRC SECTION SEG_CONST 72a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 73e5eaf37440b8e337ab150c017df7c03faf846c51DRC alignz 16 74e5eaf37440b8e337ab150c017df7c03faf846c51DRC global EXTN(jconst_idct_red_sse2) 75a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 76a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA MasaruEXTN(jconst_idct_red_sse2): 77a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 78e5eaf37440b8e337ab150c017df7c03faf846c51DRCPW_F184_MF076 times 4 dw F_1_847,-F_0_765 79e5eaf37440b8e337ab150c017df7c03faf846c51DRCPW_F256_F089 times 4 dw F_2_562, F_0_899 80e5eaf37440b8e337ab150c017df7c03faf846c51DRCPW_F106_MF217 times 4 dw F_1_061,-F_2_172 81e5eaf37440b8e337ab150c017df7c03faf846c51DRCPW_MF060_MF050 times 4 dw -F_0_601,-F_0_509 82e5eaf37440b8e337ab150c017df7c03faf846c51DRCPW_F145_MF021 times 4 dw F_1_451,-F_0_211 83e5eaf37440b8e337ab150c017df7c03faf846c51DRCPW_F362_MF127 times 4 dw F_3_624,-F_1_272 84e5eaf37440b8e337ab150c017df7c03faf846c51DRCPW_F085_MF072 times 4 dw F_0_850,-F_0_720 85e5eaf37440b8e337ab150c017df7c03faf846c51DRCPD_DESCALE_P1_4 times 4 dd 1 << (DESCALE_P1_4-1) 86e5eaf37440b8e337ab150c017df7c03faf846c51DRCPD_DESCALE_P2_4 times 4 dd 1 << (DESCALE_P2_4-1) 87e5eaf37440b8e337ab150c017df7c03faf846c51DRCPD_DESCALE_P1_2 times 4 dd 1 << (DESCALE_P1_2-1) 88e5eaf37440b8e337ab150c017df7c03faf846c51DRCPD_DESCALE_P2_2 times 4 dd 1 << (DESCALE_P2_2-1) 89e5eaf37440b8e337ab150c017df7c03faf846c51DRCPB_CENTERJSAMP times 16 db CENTERJSAMPLE 90e5eaf37440b8e337ab150c017df7c03faf846c51DRC 91e5eaf37440b8e337ab150c017df7c03faf846c51DRC alignz 16 92a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 93a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; -------------------------------------------------------------------------- 94e5eaf37440b8e337ab150c017df7c03faf846c51DRC SECTION SEG_TEXT 95e5eaf37440b8e337ab150c017df7c03faf846c51DRC BITS 32 96a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 97a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; Perform dequantization and inverse DCT on one block of coefficients, 98a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; producing a reduced-size 4x4 output block. 99a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 100a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; GLOBAL(void) 1016eb7d3798b5a79347c62825fc4c16f7ce673bdd0Alex Naidis; jsimd_idct_4x4_sse2 (void *dct_table, JCOEFPTR coef_block, 102eea72155259c61fe79d7b811330a9be91affca68Pierre Ossman; JSAMPARRAY output_buf, JDIMENSION output_col) 103a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 104a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 1056eb7d3798b5a79347c62825fc4c16f7ce673bdd0Alex Naidis%define dct_table(b) (b)+8 ; void *dct_table 106e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define coef_block(b) (b)+12 ; JCOEFPTR coef_block 107e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define output_buf(b) (b)+16 ; JSAMPARRAY output_buf 108e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define output_col(b) (b)+20 ; JDIMENSION output_col 109a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 110e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define original_ebp ebp+0 111e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] 112e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define WK_NUM 2 113a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 114e5eaf37440b8e337ab150c017df7c03faf846c51DRC align 16 115e5eaf37440b8e337ab150c017df7c03faf846c51DRC global EXTN(jsimd_idct_4x4_sse2) 116a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 117eea72155259c61fe79d7b811330a9be91affca68Pierre OssmanEXTN(jsimd_idct_4x4_sse2): 118e5eaf37440b8e337ab150c017df7c03faf846c51DRC push ebp 119e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov eax,esp ; eax = original ebp 120e5eaf37440b8e337ab150c017df7c03faf846c51DRC sub esp, byte 4 121e5eaf37440b8e337ab150c017df7c03faf846c51DRC and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits 122e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov [esp],eax 123e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov ebp,esp ; ebp = aligned ebp 124e5eaf37440b8e337ab150c017df7c03faf846c51DRC lea esp, [wk(0)] 125e5eaf37440b8e337ab150c017df7c03faf846c51DRC pushpic ebx 126e5eaf37440b8e337ab150c017df7c03faf846c51DRC; push ecx ; unused 127e5eaf37440b8e337ab150c017df7c03faf846c51DRC; push edx ; need not be preserved 128e5eaf37440b8e337ab150c017df7c03faf846c51DRC push esi 129e5eaf37440b8e337ab150c017df7c03faf846c51DRC push edi 130e5eaf37440b8e337ab150c017df7c03faf846c51DRC 131e5eaf37440b8e337ab150c017df7c03faf846c51DRC get_GOT ebx ; get GOT address 132e5eaf37440b8e337ab150c017df7c03faf846c51DRC 133e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; ---- Pass 1: process columns from input. 134e5eaf37440b8e337ab150c017df7c03faf846c51DRC 135e5eaf37440b8e337ab150c017df7c03faf846c51DRC; mov eax, [original_ebp] 136e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov edx, POINTER [dct_table(eax)] ; quantptr 137e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov esi, JCOEFPTR [coef_block(eax)] ; inptr 138a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 139a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru%ifndef NO_ZERO_COLUMN_TEST_4X4_SSE2 140e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)] 141e5eaf37440b8e337ab150c017df7c03faf846c51DRC or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)] 142e5eaf37440b8e337ab150c017df7c03faf846c51DRC jnz short .columnDCT 143e5eaf37440b8e337ab150c017df7c03faf846c51DRC 144e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)] 145e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)] 146e5eaf37440b8e337ab150c017df7c03faf846c51DRC por xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)] 147e5eaf37440b8e337ab150c017df7c03faf846c51DRC por xmm1, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)] 148e5eaf37440b8e337ab150c017df7c03faf846c51DRC por xmm0, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)] 149e5eaf37440b8e337ab150c017df7c03faf846c51DRC por xmm1, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)] 150e5eaf37440b8e337ab150c017df7c03faf846c51DRC por xmm0,xmm1 151e5eaf37440b8e337ab150c017df7c03faf846c51DRC packsswb xmm0,xmm0 152e5eaf37440b8e337ab150c017df7c03faf846c51DRC packsswb xmm0,xmm0 153e5eaf37440b8e337ab150c017df7c03faf846c51DRC movd eax,xmm0 154e5eaf37440b8e337ab150c017df7c03faf846c51DRC test eax,eax 155e5eaf37440b8e337ab150c017df7c03faf846c51DRC jnz short .columnDCT 156e5eaf37440b8e337ab150c017df7c03faf846c51DRC 157e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- AC terms all zero 158e5eaf37440b8e337ab150c017df7c03faf846c51DRC 159e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)] 160e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 161e5eaf37440b8e337ab150c017df7c03faf846c51DRC 162e5eaf37440b8e337ab150c017df7c03faf846c51DRC psllw xmm0,PASS1_BITS 163e5eaf37440b8e337ab150c017df7c03faf846c51DRC 164e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3,xmm0 ; xmm0=in0=(00 01 02 03 04 05 06 07) 165e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm0,xmm0 ; xmm0=(00 00 01 01 02 02 03 03) 166e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm3,xmm3 ; xmm3=(04 04 05 05 06 06 07 07) 167e5eaf37440b8e337ab150c017df7c03faf846c51DRC 168e5eaf37440b8e337ab150c017df7c03faf846c51DRC pshufd xmm1,xmm0,0x50 ; xmm1=[col0 col1]=(00 00 00 00 01 01 01 01) 169e5eaf37440b8e337ab150c017df7c03faf846c51DRC pshufd xmm0,xmm0,0xFA ; xmm0=[col2 col3]=(02 02 02 02 03 03 03 03) 170e5eaf37440b8e337ab150c017df7c03faf846c51DRC pshufd xmm6,xmm3,0x50 ; xmm6=[col4 col5]=(04 04 04 04 05 05 05 05) 171e5eaf37440b8e337ab150c017df7c03faf846c51DRC pshufd xmm3,xmm3,0xFA ; xmm3=[col6 col7]=(06 06 06 06 07 07 07 07) 172e5eaf37440b8e337ab150c017df7c03faf846c51DRC 173e5eaf37440b8e337ab150c017df7c03faf846c51DRC jmp near .column_end 174e5eaf37440b8e337ab150c017df7c03faf846c51DRC alignx 16,7 175a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru%endif 176a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru.columnDCT: 177a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 178e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Odd part 179e5eaf37440b8e337ab150c017df7c03faf846c51DRC 180e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)] 181e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm1, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)] 182e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm0, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 183e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 184e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm2, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)] 185e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)] 186e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm2, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 187e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 188e5eaf37440b8e337ab150c017df7c03faf846c51DRC 189e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm4,xmm0 190e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm5,xmm0 191e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm4,xmm1 192e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm5,xmm1 193e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0,xmm4 194e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm1,xmm5 195e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm4,[GOTOFF(ebx,PW_F256_F089)] ; xmm4=(tmp2L) 196e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm5,[GOTOFF(ebx,PW_F256_F089)] ; xmm5=(tmp2H) 197e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm0,[GOTOFF(ebx,PW_F106_MF217)] ; xmm0=(tmp0L) 198e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm1,[GOTOFF(ebx,PW_F106_MF217)] ; xmm1=(tmp0H) 199e5eaf37440b8e337ab150c017df7c03faf846c51DRC 200e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm6,xmm2 201e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm7,xmm2 202e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm6,xmm3 203e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm7,xmm3 204e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm2,xmm6 205e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3,xmm7 206e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm6,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm6=(tmp2L) 207e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm7,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm7=(tmp2H) 208e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm2,[GOTOFF(ebx,PW_F145_MF021)] ; xmm2=(tmp0L) 209e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm3,[GOTOFF(ebx,PW_F145_MF021)] ; xmm3=(tmp0H) 210e5eaf37440b8e337ab150c017df7c03faf846c51DRC 211e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm6,xmm4 ; xmm6=tmp2L 212e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm7,xmm5 ; xmm7=tmp2H 213e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm2,xmm0 ; xmm2=tmp0L 214e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm3,xmm1 ; xmm3=tmp0H 215e5eaf37440b8e337ab150c017df7c03faf846c51DRC 216e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=tmp0L 217e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=tmp0H 218e5eaf37440b8e337ab150c017df7c03faf846c51DRC 219e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Even part 220e5eaf37440b8e337ab150c017df7c03faf846c51DRC 221e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm4, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)] 222e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm5, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)] 223e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)] 224e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm4, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 225e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm5, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 226e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm0, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 227e5eaf37440b8e337ab150c017df7c03faf846c51DRC 228e5eaf37440b8e337ab150c017df7c03faf846c51DRC pxor xmm1,xmm1 229e5eaf37440b8e337ab150c017df7c03faf846c51DRC pxor xmm2,xmm2 230e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm1,xmm4 ; xmm1=tmp0L 231e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm2,xmm4 ; xmm2=tmp0H 232e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm1,(16-CONST_BITS-1) ; psrad xmm1,16 & pslld xmm1,CONST_BITS+1 233e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm2,(16-CONST_BITS-1) ; psrad xmm2,16 & pslld xmm2,CONST_BITS+1 234e5eaf37440b8e337ab150c017df7c03faf846c51DRC 235e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3,xmm5 ; xmm5=in2=z2 236e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm5,xmm0 ; xmm0=in6=z3 237e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm3,xmm0 238e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm5,[GOTOFF(ebx,PW_F184_MF076)] ; xmm5=tmp2L 239e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm3,[GOTOFF(ebx,PW_F184_MF076)] ; xmm3=tmp2H 240e5eaf37440b8e337ab150c017df7c03faf846c51DRC 241e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm4,xmm1 242e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0,xmm2 243e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm1,xmm5 ; xmm1=tmp10L 244e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm2,xmm3 ; xmm2=tmp10H 245e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm4,xmm5 ; xmm4=tmp12L 246e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm0,xmm3 ; xmm0=tmp12H 247e5eaf37440b8e337ab150c017df7c03faf846c51DRC 248e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Final output stage 249e5eaf37440b8e337ab150c017df7c03faf846c51DRC 250e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm5,xmm1 251e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3,xmm2 252e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm1,xmm6 ; xmm1=data0L 253e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm2,xmm7 ; xmm2=data0H 254e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm5,xmm6 ; xmm5=data3L 255e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm3,xmm7 ; xmm3=data3H 256e5eaf37440b8e337ab150c017df7c03faf846c51DRC 257e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm6,[GOTOFF(ebx,PD_DESCALE_P1_4)] ; xmm6=[PD_DESCALE_P1_4] 258e5eaf37440b8e337ab150c017df7c03faf846c51DRC 259e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm1,xmm6 260e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm2,xmm6 261e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm1,DESCALE_P1_4 262e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm2,DESCALE_P1_4 263e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm5,xmm6 264e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm3,xmm6 265e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm5,DESCALE_P1_4 266e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm3,DESCALE_P1_4 267e5eaf37440b8e337ab150c017df7c03faf846c51DRC 268e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm1,xmm2 ; xmm1=data0=(00 01 02 03 04 05 06 07) 269e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm5,xmm3 ; xmm5=data3=(30 31 32 33 34 35 36 37) 270e5eaf37440b8e337ab150c017df7c03faf846c51DRC 271e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm7, XMMWORD [wk(0)] ; xmm7=tmp0L 272e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm6, XMMWORD [wk(1)] ; xmm6=tmp0H 273e5eaf37440b8e337ab150c017df7c03faf846c51DRC 274e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm2,xmm4 275e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3,xmm0 276e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm4,xmm7 ; xmm4=data1L 277e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm0,xmm6 ; xmm0=data1H 278e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm2,xmm7 ; xmm2=data2L 279e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm3,xmm6 ; xmm3=data2H 280e5eaf37440b8e337ab150c017df7c03faf846c51DRC 281e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P1_4)] ; xmm7=[PD_DESCALE_P1_4] 282e5eaf37440b8e337ab150c017df7c03faf846c51DRC 283e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm4,xmm7 284e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm0,xmm7 285e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm4,DESCALE_P1_4 286e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm0,DESCALE_P1_4 287e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm2,xmm7 288e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm3,xmm7 289e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm2,DESCALE_P1_4 290e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm3,DESCALE_P1_4 291e5eaf37440b8e337ab150c017df7c03faf846c51DRC 292e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm4,xmm0 ; xmm4=data1=(10 11 12 13 14 15 16 17) 293e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm2,xmm3 ; xmm2=data2=(20 21 22 23 24 25 26 27) 294e5eaf37440b8e337ab150c017df7c03faf846c51DRC 295e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm6,xmm1 ; transpose coefficients(phase 1) 296e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm1,xmm4 ; xmm1=(00 10 01 11 02 12 03 13) 297e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17) 298e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm7,xmm2 ; transpose coefficients(phase 1) 299e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm2,xmm5 ; xmm2=(20 30 21 31 22 32 23 33) 300e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm7,xmm5 ; xmm7=(24 34 25 35 26 36 27 37) 301e5eaf37440b8e337ab150c017df7c03faf846c51DRC 302e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0,xmm1 ; transpose coefficients(phase 2) 303e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckldq xmm1,xmm2 ; xmm1=[col0 col1]=(00 10 20 30 01 11 21 31) 304e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhdq xmm0,xmm2 ; xmm0=[col2 col3]=(02 12 22 32 03 13 23 33) 305e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3,xmm6 ; transpose coefficients(phase 2) 306e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckldq xmm6,xmm7 ; xmm6=[col4 col5]=(04 14 24 34 05 15 25 35) 307e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhdq xmm3,xmm7 ; xmm3=[col6 col7]=(06 16 26 36 07 17 27 37) 308a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru.column_end: 309a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 310e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Prefetch the next coefficient block 311a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 312e5eaf37440b8e337ab150c017df7c03faf846c51DRC prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32] 313e5eaf37440b8e337ab150c017df7c03faf846c51DRC prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32] 314e5eaf37440b8e337ab150c017df7c03faf846c51DRC prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32] 315e5eaf37440b8e337ab150c017df7c03faf846c51DRC prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32] 316a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 317e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; ---- Pass 2: process rows, store into output array. 318a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 319e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov eax, [original_ebp] 320e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *) 321e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov eax, JDIMENSION [output_col(eax)] 322a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 323e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Even part 324a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 325e5eaf37440b8e337ab150c017df7c03faf846c51DRC pxor xmm4,xmm4 326e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm4,xmm1 ; xmm4=tmp0 327e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm4,(16-CONST_BITS-1) ; psrad xmm4,16 & pslld xmm4,CONST_BITS+1 328a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 329e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Odd part 330a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 331e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm1,xmm0 332e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm6,xmm3 333e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm5,xmm1 334e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm2,xmm6 335e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm1,[GOTOFF(ebx,PW_F256_F089)] ; xmm1=(tmp2) 336e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm6,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm6=(tmp2) 337e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm5,[GOTOFF(ebx,PW_F106_MF217)] ; xmm5=(tmp0) 338e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm2,[GOTOFF(ebx,PW_F145_MF021)] ; xmm2=(tmp0) 339a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 340e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm6,xmm1 ; xmm6=tmp2 341e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm2,xmm5 ; xmm2=tmp0 342a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 343e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Even part 344a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 345e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm0,xmm3 346e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm0,[GOTOFF(ebx,PW_F184_MF076)] ; xmm0=tmp2 347a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 348e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm7,xmm4 349e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm4,xmm0 ; xmm4=tmp10 350e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm7,xmm0 ; xmm7=tmp12 351a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 352e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Final output stage 353a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 354e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P2_4)] ; xmm1=[PD_DESCALE_P2_4] 355a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 356e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm5,xmm4 357e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3,xmm7 358e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm4,xmm6 ; xmm4=data0=(00 10 20 30) 359e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm7,xmm2 ; xmm7=data1=(01 11 21 31) 360e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm5,xmm6 ; xmm5=data3=(03 13 23 33) 361e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm3,xmm2 ; xmm3=data2=(02 12 22 32) 362a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 363e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm4,xmm1 364e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm7,xmm1 365e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm4,DESCALE_P2_4 366e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm7,DESCALE_P2_4 367e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm5,xmm1 368e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm3,xmm1 369e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm5,DESCALE_P2_4 370e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm3,DESCALE_P2_4 371a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 372e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm4,xmm3 ; xmm4=(00 10 20 30 02 12 22 32) 373e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm7,xmm5 ; xmm7=(01 11 21 31 03 13 23 33) 374a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 375e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0,xmm4 ; transpose coefficients(phase 1) 376e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm4,xmm7 ; xmm4=(00 01 10 11 20 21 30 31) 377e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhwd xmm0,xmm7 ; xmm0=(02 03 12 13 22 23 32 33) 378a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 379e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm6,xmm4 ; transpose coefficients(phase 2) 380e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckldq xmm4,xmm0 ; xmm4=(00 01 02 03 10 11 12 13) 381e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhdq xmm6,xmm0 ; xmm6=(20 21 22 23 30 31 32 33) 382a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 383e5eaf37440b8e337ab150c017df7c03faf846c51DRC packsswb xmm4,xmm6 ; xmm4=(00 01 02 03 10 11 12 13 20 ..) 384e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddb xmm4,[GOTOFF(ebx,PB_CENTERJSAMP)] 385a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 386e5eaf37440b8e337ab150c017df7c03faf846c51DRC pshufd xmm2,xmm4,0x39 ; xmm2=(10 11 12 13 20 21 22 23 30 ..) 387e5eaf37440b8e337ab150c017df7c03faf846c51DRC pshufd xmm1,xmm4,0x4E ; xmm1=(20 21 22 23 30 31 32 33 00 ..) 388e5eaf37440b8e337ab150c017df7c03faf846c51DRC pshufd xmm3,xmm4,0x93 ; xmm3=(30 31 32 33 00 01 02 03 10 ..) 389a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 390e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] 391e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov esi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] 392e5eaf37440b8e337ab150c017df7c03faf846c51DRC movd XMM_DWORD [edx+eax*SIZEOF_JSAMPLE], xmm4 393e5eaf37440b8e337ab150c017df7c03faf846c51DRC movd XMM_DWORD [esi+eax*SIZEOF_JSAMPLE], xmm2 394e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov edx, JSAMPROW [edi+2*SIZEOF_JSAMPROW] 395e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW] 396e5eaf37440b8e337ab150c017df7c03faf846c51DRC movd XMM_DWORD [edx+eax*SIZEOF_JSAMPLE], xmm1 397e5eaf37440b8e337ab150c017df7c03faf846c51DRC movd XMM_DWORD [esi+eax*SIZEOF_JSAMPLE], xmm3 398a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 399e5eaf37440b8e337ab150c017df7c03faf846c51DRC pop edi 400e5eaf37440b8e337ab150c017df7c03faf846c51DRC pop esi 401e5eaf37440b8e337ab150c017df7c03faf846c51DRC; pop edx ; need not be preserved 402e5eaf37440b8e337ab150c017df7c03faf846c51DRC; pop ecx ; unused 403e5eaf37440b8e337ab150c017df7c03faf846c51DRC poppic ebx 404e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov esp,ebp ; esp <- aligned ebp 405e5eaf37440b8e337ab150c017df7c03faf846c51DRC pop esp ; esp <- original ebp 406e5eaf37440b8e337ab150c017df7c03faf846c51DRC pop ebp 407e5eaf37440b8e337ab150c017df7c03faf846c51DRC ret 408a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 409a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 410a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; -------------------------------------------------------------------------- 411a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 412a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; Perform dequantization and inverse DCT on one block of coefficients, 413a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; producing a reduced-size 2x2 output block. 414a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 415a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; GLOBAL(void) 4166eb7d3798b5a79347c62825fc4c16f7ce673bdd0Alex Naidis; jsimd_idct_2x2_sse2 (void *dct_table, JCOEFPTR coef_block, 417eea72155259c61fe79d7b811330a9be91affca68Pierre Ossman; JSAMPARRAY output_buf, JDIMENSION output_col) 418a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru; 419a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 4206eb7d3798b5a79347c62825fc4c16f7ce673bdd0Alex Naidis%define dct_table(b) (b)+8 ; void *dct_table 421e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define coef_block(b) (b)+12 ; JCOEFPTR coef_block 422e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define output_buf(b) (b)+16 ; JSAMPARRAY output_buf 423e5eaf37440b8e337ab150c017df7c03faf846c51DRC%define output_col(b) (b)+20 ; JDIMENSION output_col 424a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 425e5eaf37440b8e337ab150c017df7c03faf846c51DRC align 16 426e5eaf37440b8e337ab150c017df7c03faf846c51DRC global EXTN(jsimd_idct_2x2_sse2) 427a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 428eea72155259c61fe79d7b811330a9be91affca68Pierre OssmanEXTN(jsimd_idct_2x2_sse2): 429e5eaf37440b8e337ab150c017df7c03faf846c51DRC push ebp 430e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov ebp,esp 431e5eaf37440b8e337ab150c017df7c03faf846c51DRC push ebx 432e5eaf37440b8e337ab150c017df7c03faf846c51DRC; push ecx ; need not be preserved 433e5eaf37440b8e337ab150c017df7c03faf846c51DRC; push edx ; need not be preserved 434e5eaf37440b8e337ab150c017df7c03faf846c51DRC push esi 435e5eaf37440b8e337ab150c017df7c03faf846c51DRC push edi 436e5eaf37440b8e337ab150c017df7c03faf846c51DRC 437e5eaf37440b8e337ab150c017df7c03faf846c51DRC get_GOT ebx ; get GOT address 438e5eaf37440b8e337ab150c017df7c03faf846c51DRC 439e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; ---- Pass 1: process columns from input. 440e5eaf37440b8e337ab150c017df7c03faf846c51DRC 441e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov edx, POINTER [dct_table(ebp)] ; quantptr 442e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov esi, JCOEFPTR [coef_block(ebp)] ; inptr 443e5eaf37440b8e337ab150c017df7c03faf846c51DRC 444e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | input: | result: | 445e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | 00 01 ** 03 ** 05 ** 07 | | 446e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | 10 11 ** 13 ** 15 ** 17 | | 447e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | ** ** ** ** ** ** ** ** | | 448e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | 30 31 ** 33 ** 35 ** 37 | A0 A1 A3 A5 A7 | 449e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | ** ** ** ** ** ** ** ** | B0 B1 B3 B5 B7 | 450e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | 50 51 ** 53 ** 55 ** 57 | | 451e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | ** ** ** ** ** ** ** ** | | 452e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | 70 71 ** 73 ** 75 ** 77 | | 453e5eaf37440b8e337ab150c017df7c03faf846c51DRC 454e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Odd part 455a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 456e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)] 457e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm1, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)] 458e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm0, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 459e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 460e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm2, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)] 461e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)] 462e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm2, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 463e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 464a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 465e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; xmm0=(10 11 ** 13 ** 15 ** 17), xmm1=(30 31 ** 33 ** 35 ** 37) 466e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; xmm2=(50 51 ** 53 ** 55 ** 57), xmm3=(70 71 ** 73 ** 75 ** 77) 467a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 468e5eaf37440b8e337ab150c017df7c03faf846c51DRC pcmpeqd xmm7,xmm7 469e5eaf37440b8e337ab150c017df7c03faf846c51DRC pslld xmm7,WORD_BIT ; xmm7={0x0000 0xFFFF 0x0000 0xFFFF ..} 470a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 471e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm4,xmm0 ; xmm4=(10 11 ** 13 ** 15 ** 17) 472e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm5,xmm2 ; xmm5=(50 51 ** 53 ** 55 ** 57) 473e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm4,xmm1 ; xmm4=(10 30 11 31 ** ** 13 33) 474e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklwd xmm5,xmm3 ; xmm5=(50 70 51 71 ** ** 53 73) 475e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm4,[GOTOFF(ebx,PW_F362_MF127)] 476e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm5,[GOTOFF(ebx,PW_F085_MF072)] 477a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 478e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrld xmm0,WORD_BIT ; xmm0=(11 -- 13 -- 15 -- 17 --) 479e5eaf37440b8e337ab150c017df7c03faf846c51DRC pand xmm1,xmm7 ; xmm1=(-- 31 -- 33 -- 35 -- 37) 480e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrld xmm2,WORD_BIT ; xmm2=(51 -- 53 -- 55 -- 57 --) 481e5eaf37440b8e337ab150c017df7c03faf846c51DRC pand xmm3,xmm7 ; xmm3=(-- 71 -- 73 -- 75 -- 77) 482e5eaf37440b8e337ab150c017df7c03faf846c51DRC por xmm0,xmm1 ; xmm0=(11 31 13 33 15 35 17 37) 483e5eaf37440b8e337ab150c017df7c03faf846c51DRC por xmm2,xmm3 ; xmm2=(51 71 53 73 55 75 57 77) 484e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm0,[GOTOFF(ebx,PW_F362_MF127)] 485e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm2,[GOTOFF(ebx,PW_F085_MF072)] 486a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 487e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm4,xmm5 ; xmm4=tmp0[col0 col1 **** col3] 488e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm0,xmm2 ; xmm0=tmp0[col1 col3 col5 col7] 489a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 490e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Even part 491a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 492e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm6, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)] 493e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmullw xmm6, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] 494a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 495e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; xmm6=(00 01 ** 03 ** 05 ** 07) 496a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 497e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm1,xmm6 ; xmm1=(00 01 ** 03 ** 05 ** 07) 498e5eaf37440b8e337ab150c017df7c03faf846c51DRC pslld xmm6,WORD_BIT ; xmm6=(-- 00 -- ** -- ** -- **) 499e5eaf37440b8e337ab150c017df7c03faf846c51DRC pand xmm1,xmm7 ; xmm1=(-- 01 -- 03 -- 05 -- 07) 500e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm6,(WORD_BIT-CONST_BITS-2) ; xmm6=tmp10[col0 **** **** ****] 501e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm1,(WORD_BIT-CONST_BITS-2) ; xmm1=tmp10[col1 col3 col5 col7] 502a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 503e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Final output stage 504a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 505e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm3,xmm6 506e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm5,xmm1 507e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm6,xmm4 ; xmm6=data0[col0 **** **** ****]=(A0 ** ** **) 508e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm1,xmm0 ; xmm1=data0[col1 col3 col5 col7]=(A1 A3 A5 A7) 509e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm3,xmm4 ; xmm3=data1[col0 **** **** ****]=(B0 ** ** **) 510e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm5,xmm0 ; xmm5=data1[col1 col3 col5 col7]=(B1 B3 B5 B7) 511a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 512e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P1_2)] ; xmm2=[PD_DESCALE_P1_2] 513a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 514e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckldq xmm6,xmm3 ; xmm6=(A0 B0 ** **) 515a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 516e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm7,xmm1 517e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpcklqdq xmm1,xmm5 ; xmm1=(A1 A3 B1 B3) 518e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckhqdq xmm7,xmm5 ; xmm7=(A5 A7 B5 B7) 519a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 520e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm6,xmm2 521e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm6,DESCALE_P1_2 522a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 523e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm1,xmm2 524e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm7,xmm2 525e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm1,DESCALE_P1_2 526e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm7,DESCALE_P1_2 527a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 528e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Prefetch the next coefficient block 529a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 530e5eaf37440b8e337ab150c017df7c03faf846c51DRC prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32] 531e5eaf37440b8e337ab150c017df7c03faf846c51DRC prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32] 532e5eaf37440b8e337ab150c017df7c03faf846c51DRC prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32] 533e5eaf37440b8e337ab150c017df7c03faf846c51DRC prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32] 534a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 535e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; ---- Pass 2: process rows, store into output array. 536a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 537e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov edi, JSAMPARRAY [output_buf(ebp)] ; (JSAMPROW *) 538e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov eax, JDIMENSION [output_col(ebp)] 539a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 540e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | input:| result:| 541e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | A0 B0 | | 542e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | A1 B1 | C0 C1 | 543e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | A3 B3 | D0 D1 | 544e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | A5 B5 | | 545e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; | A7 B7 | | 546a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 547e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Odd part 548a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 549e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm1,xmm1 ; xmm1=(A1 A3 B1 B3 A1 A3 B1 B3) 550e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm7,xmm7 ; xmm7=(A5 A7 B5 B7 A5 A7 B5 B7) 551e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm1,[GOTOFF(ebx,PW_F362_MF127)] 552e5eaf37440b8e337ab150c017df7c03faf846c51DRC pmaddwd xmm7,[GOTOFF(ebx,PW_F085_MF072)] 553a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 554e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm1,xmm7 ; xmm1=tmp0[row0 row1 row0 row1] 555a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 556e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Even part 557a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 558e5eaf37440b8e337ab150c017df7c03faf846c51DRC pslld xmm6,(CONST_BITS+2) ; xmm6=tmp10[row0 row1 **** ****] 559a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 560e5eaf37440b8e337ab150c017df7c03faf846c51DRC ; -- Final output stage 561a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 562e5eaf37440b8e337ab150c017df7c03faf846c51DRC movdqa xmm4,xmm6 563e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm6,xmm1 ; xmm6=data0[row0 row1 **** ****]=(C0 C1 ** **) 564e5eaf37440b8e337ab150c017df7c03faf846c51DRC psubd xmm4,xmm1 ; xmm4=data1[row0 row1 **** ****]=(D0 D1 ** **) 565a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 566e5eaf37440b8e337ab150c017df7c03faf846c51DRC punpckldq xmm6,xmm4 ; xmm6=(C0 D0 C1 D1) 567a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 568e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddd xmm6,[GOTOFF(ebx,PD_DESCALE_P2_2)] 569e5eaf37440b8e337ab150c017df7c03faf846c51DRC psrad xmm6,DESCALE_P2_2 570a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 571e5eaf37440b8e337ab150c017df7c03faf846c51DRC packssdw xmm6,xmm6 ; xmm6=(C0 D0 C1 D1 C0 D0 C1 D1) 572e5eaf37440b8e337ab150c017df7c03faf846c51DRC packsswb xmm6,xmm6 ; xmm6=(C0 D0 C1 D1 C0 D0 C1 D1 ..) 573e5eaf37440b8e337ab150c017df7c03faf846c51DRC paddb xmm6,[GOTOFF(ebx,PB_CENTERJSAMP)] 574a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 575e5eaf37440b8e337ab150c017df7c03faf846c51DRC pextrw ebx,xmm6,0x00 ; ebx=(C0 D0 -- --) 576e5eaf37440b8e337ab150c017df7c03faf846c51DRC pextrw ecx,xmm6,0x01 ; ecx=(C1 D1 -- --) 577a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 578e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] 579e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov esi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] 580e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov WORD [edx+eax*SIZEOF_JSAMPLE], bx 581e5eaf37440b8e337ab150c017df7c03faf846c51DRC mov WORD [esi+eax*SIZEOF_JSAMPLE], cx 582a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 583e5eaf37440b8e337ab150c017df7c03faf846c51DRC pop edi 584e5eaf37440b8e337ab150c017df7c03faf846c51DRC pop esi 585e5eaf37440b8e337ab150c017df7c03faf846c51DRC; pop edx ; need not be preserved 586e5eaf37440b8e337ab150c017df7c03faf846c51DRC; pop ecx ; need not be preserved 587e5eaf37440b8e337ab150c017df7c03faf846c51DRC pop ebx 588e5eaf37440b8e337ab150c017df7c03faf846c51DRC pop ebp 589e5eaf37440b8e337ab150c017df7c03faf846c51DRC ret 590a2e6a9dd47eb10c701a42a16f305ded1a02cd886MIYASAKA Masaru 591132b5fdd6d1b70c32d76ff5389bd6e183e363f4dDRC; For some reason, the OS X linker does not honor the request to align the 592132b5fdd6d1b70c32d76ff5389bd6e183e363f4dDRC; segment unless we do this. 593e5eaf37440b8e337ab150c017df7c03faf846c51DRC align 16 594