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media/libjpeg/simd/jiss2int.asm@6474c204b198 (annotated)

media/libjpeg/simd/jiss2int.asm

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 ;
michael@0 2 ; jiss2int.asm - accurate integer IDCT (SSE2)
michael@0 3 ;
michael@0 4 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
michael@0 5 ;
michael@0 6 ; Based on
michael@0 7 ; x86 SIMD extension for IJG JPEG library
michael@0 8 ; Copyright (C) 1999-2006, MIYASAKA Masaru.
michael@0 9 ; For conditions of distribution and use, see copyright notice in jsimdext.inc
michael@0 10 ;
michael@0 11 ; This file should be assembled with NASM (Netwide Assembler),
michael@0 12 ; can *not* be assembled with Microsoft's MASM or any compatible
michael@0 13 ; assembler (including Borland's Turbo Assembler).
michael@0 14 ; NASM is available from http://nasm.sourceforge.net/ or
michael@0 15 ; http://sourceforge.net/project/showfiles.php?group_id=6208
michael@0 16 ;
michael@0 17 ; This file contains a slow-but-accurate integer implementation of the
michael@0 18 ; inverse DCT (Discrete Cosine Transform). The following code is based
michael@0 19 ; directly on the IJG's original jidctint.c; see the jidctint.c for
michael@0 20 ; more details.
michael@0 21 ;
michael@0 22 ; [TAB8]
michael@0 23
michael@0 24 %include "jsimdext.inc"
michael@0 25 %include "jdct.inc"
michael@0 26
michael@0 27 ; --------------------------------------------------------------------------
michael@0 28
michael@0 29 %define CONST_BITS 13
michael@0 30 %define PASS1_BITS 2
michael@0 31
michael@0 32 %define DESCALE_P1 (CONST_BITS-PASS1_BITS)
michael@0 33 %define DESCALE_P2 (CONST_BITS+PASS1_BITS+3)
michael@0 34
michael@0 35 %if CONST_BITS == 13
michael@0 36 F_0_298 equ 2446 ; FIX(0.298631336)
michael@0 37 F_0_390 equ 3196 ; FIX(0.390180644)
michael@0 38 F_0_541 equ 4433 ; FIX(0.541196100)
michael@0 39 F_0_765 equ 6270 ; FIX(0.765366865)
michael@0 40 F_0_899 equ 7373 ; FIX(0.899976223)
michael@0 41 F_1_175 equ 9633 ; FIX(1.175875602)
michael@0 42 F_1_501 equ 12299 ; FIX(1.501321110)
michael@0 43 F_1_847 equ 15137 ; FIX(1.847759065)
michael@0 44 F_1_961 equ 16069 ; FIX(1.961570560)
michael@0 45 F_2_053 equ 16819 ; FIX(2.053119869)
michael@0 46 F_2_562 equ 20995 ; FIX(2.562915447)
michael@0 47 F_3_072 equ 25172 ; FIX(3.072711026)
michael@0 48 %else
michael@0 49 ; NASM cannot do compile-time arithmetic on floating-point constants.
michael@0 50 %define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n))
michael@0 51 F_0_298 equ DESCALE( 320652955,30-CONST_BITS) ; FIX(0.298631336)
michael@0 52 F_0_390 equ DESCALE( 418953276,30-CONST_BITS) ; FIX(0.390180644)
michael@0 53 F_0_541 equ DESCALE( 581104887,30-CONST_BITS) ; FIX(0.541196100)
michael@0 54 F_0_765 equ DESCALE( 821806413,30-CONST_BITS) ; FIX(0.765366865)
michael@0 55 F_0_899 equ DESCALE( 966342111,30-CONST_BITS) ; FIX(0.899976223)
michael@0 56 F_1_175 equ DESCALE(1262586813,30-CONST_BITS) ; FIX(1.175875602)
michael@0 57 F_1_501 equ DESCALE(1612031267,30-CONST_BITS) ; FIX(1.501321110)
michael@0 58 F_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065)
michael@0 59 F_1_961 equ DESCALE(2106220350,30-CONST_BITS) ; FIX(1.961570560)
michael@0 60 F_2_053 equ DESCALE(2204520673,30-CONST_BITS) ; FIX(2.053119869)
michael@0 61 F_2_562 equ DESCALE(2751909506,30-CONST_BITS) ; FIX(2.562915447)
michael@0 62 F_3_072 equ DESCALE(3299298341,30-CONST_BITS) ; FIX(3.072711026)
michael@0 63 %endif
michael@0 64
michael@0 65 ; --------------------------------------------------------------------------
michael@0 66 SECTION SEG_CONST
michael@0 67
michael@0 68 alignz 16
michael@0 69 global EXTN(jconst_idct_islow_sse2)
michael@0 70
michael@0 71 EXTN(jconst_idct_islow_sse2):
michael@0 72
michael@0 73 PW_F130_F054 times 4 dw (F_0_541+F_0_765), F_0_541
michael@0 74 PW_F054_MF130 times 4 dw F_0_541, (F_0_541-F_1_847)
michael@0 75 PW_MF078_F117 times 4 dw (F_1_175-F_1_961), F_1_175
michael@0 76 PW_F117_F078 times 4 dw F_1_175, (F_1_175-F_0_390)
michael@0 77 PW_MF060_MF089 times 4 dw (F_0_298-F_0_899),-F_0_899
michael@0 78 PW_MF089_F060 times 4 dw -F_0_899, (F_1_501-F_0_899)
michael@0 79 PW_MF050_MF256 times 4 dw (F_2_053-F_2_562),-F_2_562
michael@0 80 PW_MF256_F050 times 4 dw -F_2_562, (F_3_072-F_2_562)
michael@0 81 PD_DESCALE_P1 times 4 dd 1 << (DESCALE_P1-1)
michael@0 82 PD_DESCALE_P2 times 4 dd 1 << (DESCALE_P2-1)
michael@0 83 PB_CENTERJSAMP times 16 db CENTERJSAMPLE
michael@0 84
michael@0 85 alignz 16
michael@0 86
michael@0 87 ; --------------------------------------------------------------------------
michael@0 88 SECTION SEG_TEXT
michael@0 89 BITS 32
michael@0 90 ;
michael@0 91 ; Perform dequantization and inverse DCT on one block of coefficients.
michael@0 92 ;
michael@0 93 ; GLOBAL(void)
michael@0 94 ; jsimd_idct_islow_sse2 (void * dct_table, JCOEFPTR coef_block,
michael@0 95 ; JSAMPARRAY output_buf, JDIMENSION output_col)
michael@0 96 ;
michael@0 97
michael@0 98 %define dct_table(b) (b)+8 ; jpeg_component_info * compptr
michael@0 99 %define coef_block(b) (b)+12 ; JCOEFPTR coef_block
michael@0 100 %define output_buf(b) (b)+16 ; JSAMPARRAY output_buf
michael@0 101 %define output_col(b) (b)+20 ; JDIMENSION output_col
michael@0 102
michael@0 103 %define original_ebp ebp+0
michael@0 104 %define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
michael@0 105 %define WK_NUM 12
michael@0 106
michael@0 107 align 16
michael@0 108 global EXTN(jsimd_idct_islow_sse2)
michael@0 109
michael@0 110 EXTN(jsimd_idct_islow_sse2):
michael@0 111 push ebp
michael@0 112 mov eax,esp ; eax = original ebp
michael@0 113 sub esp, byte 4
michael@0 114 and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
michael@0 115 mov [esp],eax
michael@0 116 mov ebp,esp ; ebp = aligned ebp
michael@0 117 lea esp, [wk(0)]
michael@0 118 pushpic ebx
michael@0 119 ; push ecx ; unused
michael@0 120 ; push edx ; need not be preserved
michael@0 121 push esi
michael@0 122 push edi
michael@0 123
michael@0 124 get_GOT ebx ; get GOT address
michael@0 125
michael@0 126 ; ---- Pass 1: process columns from input.
michael@0 127
michael@0 128 ; mov eax, [original_ebp]
michael@0 129 mov edx, POINTER [dct_table(eax)] ; quantptr
michael@0 130 mov esi, JCOEFPTR [coef_block(eax)] ; inptr
michael@0 131
michael@0 132 %ifndef NO_ZERO_COLUMN_TEST_ISLOW_SSE2
michael@0 133 mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
michael@0 134 or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
michael@0 135 jnz near .columnDCT
michael@0 136
michael@0 137 movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
michael@0 138 movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
michael@0 139 por xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
michael@0 140 por xmm1, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
michael@0 141 por xmm0, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
michael@0 142 por xmm1, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
michael@0 143 por xmm0, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
michael@0 144 por xmm1,xmm0
michael@0 145 packsswb xmm1,xmm1
michael@0 146 packsswb xmm1,xmm1
michael@0 147 movd eax,xmm1
michael@0 148 test eax,eax
michael@0 149 jnz short .columnDCT
michael@0 150
michael@0 151 ; -- AC terms all zero
michael@0 152
michael@0 153 movdqa xmm5, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
michael@0 154 pmullw xmm5, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 155
michael@0 156 psllw xmm5,PASS1_BITS
michael@0 157
michael@0 158 movdqa xmm4,xmm5 ; xmm5=in0=(00 01 02 03 04 05 06 07)
michael@0 159 punpcklwd xmm5,xmm5 ; xmm5=(00 00 01 01 02 02 03 03)
michael@0 160 punpckhwd xmm4,xmm4 ; xmm4=(04 04 05 05 06 06 07 07)
michael@0 161
michael@0 162 pshufd xmm7,xmm5,0x00 ; xmm7=col0=(00 00 00 00 00 00 00 00)
michael@0 163 pshufd xmm6,xmm5,0x55 ; xmm6=col1=(01 01 01 01 01 01 01 01)
michael@0 164 pshufd xmm1,xmm5,0xAA ; xmm1=col2=(02 02 02 02 02 02 02 02)
michael@0 165 pshufd xmm5,xmm5,0xFF ; xmm5=col3=(03 03 03 03 03 03 03 03)
michael@0 166 pshufd xmm0,xmm4,0x00 ; xmm0=col4=(04 04 04 04 04 04 04 04)
michael@0 167 pshufd xmm3,xmm4,0x55 ; xmm3=col5=(05 05 05 05 05 05 05 05)
michael@0 168 pshufd xmm2,xmm4,0xAA ; xmm2=col6=(06 06 06 06 06 06 06 06)
michael@0 169 pshufd xmm4,xmm4,0xFF ; xmm4=col7=(07 07 07 07 07 07 07 07)
michael@0 170
michael@0 171 movdqa XMMWORD [wk(8)], xmm6 ; wk(8)=col1
michael@0 172 movdqa XMMWORD [wk(9)], xmm5 ; wk(9)=col3
michael@0 173 movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5
michael@0 174 movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7
michael@0 175 jmp near .column_end
michael@0 176 alignx 16,7
michael@0 177 %endif
michael@0 178 .columnDCT:
michael@0 179
michael@0 180 ; -- Even part
michael@0 181
michael@0 182 movdqa xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
michael@0 183 movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
michael@0 184 pmullw xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 185 pmullw xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 186 movdqa xmm2, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
michael@0 187 movdqa xmm3, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
michael@0 188 pmullw xmm2, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 189 pmullw xmm3, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 190
michael@0 191 ; (Original)
michael@0 192 ; z1 = (z2 + z3) * 0.541196100;
michael@0 193 ; tmp2 = z1 + z3 * -1.847759065;
michael@0 194 ; tmp3 = z1 + z2 * 0.765366865;
michael@0 195 ;
michael@0 196 ; (This implementation)
michael@0 197 ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065);
michael@0 198 ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100;
michael@0 199
michael@0 200 movdqa xmm4,xmm1 ; xmm1=in2=z2
michael@0 201 movdqa xmm5,xmm1
michael@0 202 punpcklwd xmm4,xmm3 ; xmm3=in6=z3
michael@0 203 punpckhwd xmm5,xmm3
michael@0 204 movdqa xmm1,xmm4
michael@0 205 movdqa xmm3,xmm5
michael@0 206 pmaddwd xmm4,[GOTOFF(ebx,PW_F130_F054)] ; xmm4=tmp3L
michael@0 207 pmaddwd xmm5,[GOTOFF(ebx,PW_F130_F054)] ; xmm5=tmp3H
michael@0 208 pmaddwd xmm1,[GOTOFF(ebx,PW_F054_MF130)] ; xmm1=tmp2L
michael@0 209 pmaddwd xmm3,[GOTOFF(ebx,PW_F054_MF130)] ; xmm3=tmp2H
michael@0 210
michael@0 211 movdqa xmm6,xmm0
michael@0 212 paddw xmm0,xmm2 ; xmm0=in0+in4
michael@0 213 psubw xmm6,xmm2 ; xmm6=in0-in4
michael@0 214
michael@0 215 pxor xmm7,xmm7
michael@0 216 pxor xmm2,xmm2
michael@0 217 punpcklwd xmm7,xmm0 ; xmm7=tmp0L
michael@0 218 punpckhwd xmm2,xmm0 ; xmm2=tmp0H
michael@0 219 psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS
michael@0 220 psrad xmm2,(16-CONST_BITS) ; psrad xmm2,16 & pslld xmm2,CONST_BITS
michael@0 221
michael@0 222 movdqa xmm0,xmm7
michael@0 223 paddd xmm7,xmm4 ; xmm7=tmp10L
michael@0 224 psubd xmm0,xmm4 ; xmm0=tmp13L
michael@0 225 movdqa xmm4,xmm2
michael@0 226 paddd xmm2,xmm5 ; xmm2=tmp10H
michael@0 227 psubd xmm4,xmm5 ; xmm4=tmp13H
michael@0 228
michael@0 229 movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=tmp10L
michael@0 230 movdqa XMMWORD [wk(1)], xmm2 ; wk(1)=tmp10H
michael@0 231 movdqa XMMWORD [wk(2)], xmm0 ; wk(2)=tmp13L
michael@0 232 movdqa XMMWORD [wk(3)], xmm4 ; wk(3)=tmp13H
michael@0 233
michael@0 234 pxor xmm5,xmm5
michael@0 235 pxor xmm7,xmm7
michael@0 236 punpcklwd xmm5,xmm6 ; xmm5=tmp1L
michael@0 237 punpckhwd xmm7,xmm6 ; xmm7=tmp1H
michael@0 238 psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS
michael@0 239 psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS
michael@0 240
michael@0 241 movdqa xmm2,xmm5
michael@0 242 paddd xmm5,xmm1 ; xmm5=tmp11L
michael@0 243 psubd xmm2,xmm1 ; xmm2=tmp12L
michael@0 244 movdqa xmm0,xmm7
michael@0 245 paddd xmm7,xmm3 ; xmm7=tmp11H
michael@0 246 psubd xmm0,xmm3 ; xmm0=tmp12H
michael@0 247
michael@0 248 movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L
michael@0 249 movdqa XMMWORD [wk(5)], xmm7 ; wk(5)=tmp11H
michael@0 250 movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=tmp12L
michael@0 251 movdqa XMMWORD [wk(7)], xmm0 ; wk(7)=tmp12H
michael@0 252
michael@0 253 ; -- Odd part
michael@0 254
michael@0 255 movdqa xmm4, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
michael@0 256 movdqa xmm6, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
michael@0 257 pmullw xmm4, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 258 pmullw xmm6, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 259 movdqa xmm1, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
michael@0 260 movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
michael@0 261 pmullw xmm1, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 262 pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
michael@0 263
michael@0 264 movdqa xmm5,xmm6
michael@0 265 movdqa xmm7,xmm4
michael@0 266 paddw xmm5,xmm3 ; xmm5=z3
michael@0 267 paddw xmm7,xmm1 ; xmm7=z4
michael@0 268
michael@0 269 ; (Original)
michael@0 270 ; z5 = (z3 + z4) * 1.175875602;
michael@0 271 ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644;
michael@0 272 ; z3 += z5; z4 += z5;
michael@0 273 ;
michael@0 274 ; (This implementation)
michael@0 275 ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
michael@0 276 ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
michael@0 277
michael@0 278 movdqa xmm2,xmm5
michael@0 279 movdqa xmm0,xmm5
michael@0 280 punpcklwd xmm2,xmm7
michael@0 281 punpckhwd xmm0,xmm7
michael@0 282 movdqa xmm5,xmm2
michael@0 283 movdqa xmm7,xmm0
michael@0 284 pmaddwd xmm2,[GOTOFF(ebx,PW_MF078_F117)] ; xmm2=z3L
michael@0 285 pmaddwd xmm0,[GOTOFF(ebx,PW_MF078_F117)] ; xmm0=z3H
michael@0 286 pmaddwd xmm5,[GOTOFF(ebx,PW_F117_F078)] ; xmm5=z4L
michael@0 287 pmaddwd xmm7,[GOTOFF(ebx,PW_F117_F078)] ; xmm7=z4H
michael@0 288
michael@0 289 movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=z3L
michael@0 290 movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=z3H
michael@0 291
michael@0 292 ; (Original)
michael@0 293 ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2;
michael@0 294 ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869;
michael@0 295 ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110;
michael@0 296 ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
michael@0 297 ; tmp0 += z1 + z3; tmp1 += z2 + z4;
michael@0 298 ; tmp2 += z2 + z3; tmp3 += z1 + z4;
michael@0 299 ;
michael@0 300 ; (This implementation)
michael@0 301 ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223;
michael@0 302 ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447;
michael@0 303 ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447);
michael@0 304 ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223);
michael@0 305 ; tmp0 += z3; tmp1 += z4;
michael@0 306 ; tmp2 += z3; tmp3 += z4;
michael@0 307
michael@0 308 movdqa xmm2,xmm3
michael@0 309 movdqa xmm0,xmm3
michael@0 310 punpcklwd xmm2,xmm4
michael@0 311 punpckhwd xmm0,xmm4
michael@0 312 movdqa xmm3,xmm2
michael@0 313 movdqa xmm4,xmm0
michael@0 314 pmaddwd xmm2,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm2=tmp0L
michael@0 315 pmaddwd xmm0,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm0=tmp0H
michael@0 316 pmaddwd xmm3,[GOTOFF(ebx,PW_MF089_F060)] ; xmm3=tmp3L
michael@0 317 pmaddwd xmm4,[GOTOFF(ebx,PW_MF089_F060)] ; xmm4=tmp3H
michael@0 318
michael@0 319 paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp0L
michael@0 320 paddd xmm0, XMMWORD [wk(11)] ; xmm0=tmp0H
michael@0 321 paddd xmm3,xmm5 ; xmm3=tmp3L
michael@0 322 paddd xmm4,xmm7 ; xmm4=tmp3H
michael@0 323
michael@0 324 movdqa XMMWORD [wk(8)], xmm2 ; wk(8)=tmp0L
michael@0 325 movdqa XMMWORD [wk(9)], xmm0 ; wk(9)=tmp0H
michael@0 326
michael@0 327 movdqa xmm2,xmm1
michael@0 328 movdqa xmm0,xmm1
michael@0 329 punpcklwd xmm2,xmm6
michael@0 330 punpckhwd xmm0,xmm6
michael@0 331 movdqa xmm1,xmm2
michael@0 332 movdqa xmm6,xmm0
michael@0 333 pmaddwd xmm2,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm2=tmp1L
michael@0 334 pmaddwd xmm0,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm0=tmp1H
michael@0 335 pmaddwd xmm1,[GOTOFF(ebx,PW_MF256_F050)] ; xmm1=tmp2L
michael@0 336 pmaddwd xmm6,[GOTOFF(ebx,PW_MF256_F050)] ; xmm6=tmp2H
michael@0 337
michael@0 338 paddd xmm2,xmm5 ; xmm2=tmp1L
michael@0 339 paddd xmm0,xmm7 ; xmm0=tmp1H
michael@0 340 paddd xmm1, XMMWORD [wk(10)] ; xmm1=tmp2L
michael@0 341 paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H
michael@0 342
michael@0 343 movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=tmp1L
michael@0 344 movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=tmp1H
michael@0 345
michael@0 346 ; -- Final output stage
michael@0 347
michael@0 348 movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L
michael@0 349 movdqa xmm7, XMMWORD [wk(1)] ; xmm7=tmp10H
michael@0 350
michael@0 351 movdqa xmm2,xmm5
michael@0 352 movdqa xmm0,xmm7
michael@0 353 paddd xmm5,xmm3 ; xmm5=data0L
michael@0 354 paddd xmm7,xmm4 ; xmm7=data0H
michael@0 355 psubd xmm2,xmm3 ; xmm2=data7L
michael@0 356 psubd xmm0,xmm4 ; xmm0=data7H
michael@0 357
michael@0 358 movdqa xmm3,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm3=[PD_DESCALE_P1]
michael@0 359
michael@0 360 paddd xmm5,xmm3
michael@0 361 paddd xmm7,xmm3
michael@0 362 psrad xmm5,DESCALE_P1
michael@0 363 psrad xmm7,DESCALE_P1
michael@0 364 paddd xmm2,xmm3
michael@0 365 paddd xmm0,xmm3
michael@0 366 psrad xmm2,DESCALE_P1
michael@0 367 psrad xmm0,DESCALE_P1
michael@0 368
michael@0 369 packssdw xmm5,xmm7 ; xmm5=data0=(00 01 02 03 04 05 06 07)
michael@0 370 packssdw xmm2,xmm0 ; xmm2=data7=(70 71 72 73 74 75 76 77)
michael@0 371
michael@0 372 movdqa xmm4, XMMWORD [wk(4)] ; xmm4=tmp11L
michael@0 373 movdqa xmm3, XMMWORD [wk(5)] ; xmm3=tmp11H
michael@0 374
michael@0 375 movdqa xmm7,xmm4
michael@0 376 movdqa xmm0,xmm3
michael@0 377 paddd xmm4,xmm1 ; xmm4=data1L
michael@0 378 paddd xmm3,xmm6 ; xmm3=data1H
michael@0 379 psubd xmm7,xmm1 ; xmm7=data6L
michael@0 380 psubd xmm0,xmm6 ; xmm0=data6H
michael@0 381
michael@0 382 movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm1=[PD_DESCALE_P1]
michael@0 383
michael@0 384 paddd xmm4,xmm1
michael@0 385 paddd xmm3,xmm1
michael@0 386 psrad xmm4,DESCALE_P1
michael@0 387 psrad xmm3,DESCALE_P1
michael@0 388 paddd xmm7,xmm1
michael@0 389 paddd xmm0,xmm1
michael@0 390 psrad xmm7,DESCALE_P1
michael@0 391 psrad xmm0,DESCALE_P1
michael@0 392
michael@0 393 packssdw xmm4,xmm3 ; xmm4=data1=(10 11 12 13 14 15 16 17)
michael@0 394 packssdw xmm7,xmm0 ; xmm7=data6=(60 61 62 63 64 65 66 67)
michael@0 395
michael@0 396 movdqa xmm6,xmm5 ; transpose coefficients(phase 1)
michael@0 397 punpcklwd xmm5,xmm4 ; xmm5=(00 10 01 11 02 12 03 13)
michael@0 398 punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17)
michael@0 399 movdqa xmm1,xmm7 ; transpose coefficients(phase 1)
michael@0 400 punpcklwd xmm7,xmm2 ; xmm7=(60 70 61 71 62 72 63 73)
michael@0 401 punpckhwd xmm1,xmm2 ; xmm1=(64 74 65 75 66 76 67 77)
michael@0 402
michael@0 403 movdqa xmm3, XMMWORD [wk(6)] ; xmm3=tmp12L
michael@0 404 movdqa xmm0, XMMWORD [wk(7)] ; xmm0=tmp12H
michael@0 405 movdqa xmm4, XMMWORD [wk(10)] ; xmm4=tmp1L
michael@0 406 movdqa xmm2, XMMWORD [wk(11)] ; xmm2=tmp1H
michael@0 407
michael@0 408 movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 01 11 02 12 03 13)
michael@0 409 movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=(04 14 05 15 06 16 07 17)
michael@0 410 movdqa XMMWORD [wk(4)], xmm7 ; wk(4)=(60 70 61 71 62 72 63 73)
michael@0 411 movdqa XMMWORD [wk(5)], xmm1 ; wk(5)=(64 74 65 75 66 76 67 77)
michael@0 412
michael@0 413 movdqa xmm5,xmm3
michael@0 414 movdqa xmm6,xmm0
michael@0 415 paddd xmm3,xmm4 ; xmm3=data2L
michael@0 416 paddd xmm0,xmm2 ; xmm0=data2H
michael@0 417 psubd xmm5,xmm4 ; xmm5=data5L
michael@0 418 psubd xmm6,xmm2 ; xmm6=data5H
michael@0 419
michael@0 420 movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm7=[PD_DESCALE_P1]
michael@0 421
michael@0 422 paddd xmm3,xmm7
michael@0 423 paddd xmm0,xmm7
michael@0 424 psrad xmm3,DESCALE_P1
michael@0 425 psrad xmm0,DESCALE_P1
michael@0 426 paddd xmm5,xmm7
michael@0 427 paddd xmm6,xmm7
michael@0 428 psrad xmm5,DESCALE_P1
michael@0 429 psrad xmm6,DESCALE_P1
michael@0 430
michael@0 431 packssdw xmm3,xmm0 ; xmm3=data2=(20 21 22 23 24 25 26 27)
michael@0 432 packssdw xmm5,xmm6 ; xmm5=data5=(50 51 52 53 54 55 56 57)
michael@0 433
michael@0 434 movdqa xmm1, XMMWORD [wk(2)] ; xmm1=tmp13L
michael@0 435 movdqa xmm4, XMMWORD [wk(3)] ; xmm4=tmp13H
michael@0 436 movdqa xmm2, XMMWORD [wk(8)] ; xmm2=tmp0L
michael@0 437 movdqa xmm7, XMMWORD [wk(9)] ; xmm7=tmp0H
michael@0 438
michael@0 439 movdqa xmm0,xmm1
michael@0 440 movdqa xmm6,xmm4
michael@0 441 paddd xmm1,xmm2 ; xmm1=data3L
michael@0 442 paddd xmm4,xmm7 ; xmm4=data3H
michael@0 443 psubd xmm0,xmm2 ; xmm0=data4L
michael@0 444 psubd xmm6,xmm7 ; xmm6=data4H
michael@0 445
michael@0 446 movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm2=[PD_DESCALE_P1]
michael@0 447
michael@0 448 paddd xmm1,xmm2
michael@0 449 paddd xmm4,xmm2
michael@0 450 psrad xmm1,DESCALE_P1
michael@0 451 psrad xmm4,DESCALE_P1
michael@0 452 paddd xmm0,xmm2
michael@0 453 paddd xmm6,xmm2
michael@0 454 psrad xmm0,DESCALE_P1
michael@0 455 psrad xmm6,DESCALE_P1
michael@0 456
michael@0 457 packssdw xmm1,xmm4 ; xmm1=data3=(30 31 32 33 34 35 36 37)
michael@0 458 packssdw xmm0,xmm6 ; xmm0=data4=(40 41 42 43 44 45 46 47)
michael@0 459
michael@0 460 movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 01 11 02 12 03 13)
michael@0 461 movdqa xmm2, XMMWORD [wk(1)] ; xmm2=(04 14 05 15 06 16 07 17)
michael@0 462
michael@0 463 movdqa xmm4,xmm3 ; transpose coefficients(phase 1)
michael@0 464 punpcklwd xmm3,xmm1 ; xmm3=(20 30 21 31 22 32 23 33)
michael@0 465 punpckhwd xmm4,xmm1 ; xmm4=(24 34 25 35 26 36 27 37)
michael@0 466 movdqa xmm6,xmm0 ; transpose coefficients(phase 1)
michael@0 467 punpcklwd xmm0,xmm5 ; xmm0=(40 50 41 51 42 52 43 53)
michael@0 468 punpckhwd xmm6,xmm5 ; xmm6=(44 54 45 55 46 56 47 57)
michael@0 469
michael@0 470 movdqa xmm1,xmm7 ; transpose coefficients(phase 2)
michael@0 471 punpckldq xmm7,xmm3 ; xmm7=(00 10 20 30 01 11 21 31)
michael@0 472 punpckhdq xmm1,xmm3 ; xmm1=(02 12 22 32 03 13 23 33)
michael@0 473 movdqa xmm5,xmm2 ; transpose coefficients(phase 2)
michael@0 474 punpckldq xmm2,xmm4 ; xmm2=(04 14 24 34 05 15 25 35)
michael@0 475 punpckhdq xmm5,xmm4 ; xmm5=(06 16 26 36 07 17 27 37)
michael@0 476
michael@0 477 movdqa xmm3, XMMWORD [wk(4)] ; xmm3=(60 70 61 71 62 72 63 73)
michael@0 478 movdqa xmm4, XMMWORD [wk(5)] ; xmm4=(64 74 65 75 66 76 67 77)
michael@0 479
michael@0 480 movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=(04 14 24 34 05 15 25 35)
michael@0 481 movdqa XMMWORD [wk(7)], xmm5 ; wk(7)=(06 16 26 36 07 17 27 37)
michael@0 482
michael@0 483 movdqa xmm2,xmm0 ; transpose coefficients(phase 2)
michael@0 484 punpckldq xmm0,xmm3 ; xmm0=(40 50 60 70 41 51 61 71)
michael@0 485 punpckhdq xmm2,xmm3 ; xmm2=(42 52 62 72 43 53 63 73)
michael@0 486 movdqa xmm5,xmm6 ; transpose coefficients(phase 2)
michael@0 487 punpckldq xmm6,xmm4 ; xmm6=(44 54 64 74 45 55 65 75)
michael@0 488 punpckhdq xmm5,xmm4 ; xmm5=(46 56 66 76 47 57 67 77)
michael@0 489
michael@0 490 movdqa xmm3,xmm7 ; transpose coefficients(phase 3)
michael@0 491 punpcklqdq xmm7,xmm0 ; xmm7=col0=(00 10 20 30 40 50 60 70)
michael@0 492 punpckhqdq xmm3,xmm0 ; xmm3=col1=(01 11 21 31 41 51 61 71)
michael@0 493 movdqa xmm4,xmm1 ; transpose coefficients(phase 3)
michael@0 494 punpcklqdq xmm1,xmm2 ; xmm1=col2=(02 12 22 32 42 52 62 72)
michael@0 495 punpckhqdq xmm4,xmm2 ; xmm4=col3=(03 13 23 33 43 53 63 73)
michael@0 496
michael@0 497 movdqa xmm0, XMMWORD [wk(6)] ; xmm0=(04 14 24 34 05 15 25 35)
michael@0 498 movdqa xmm2, XMMWORD [wk(7)] ; xmm2=(06 16 26 36 07 17 27 37)
michael@0 499
michael@0 500 movdqa XMMWORD [wk(8)], xmm3 ; wk(8)=col1
michael@0 501 movdqa XMMWORD [wk(9)], xmm4 ; wk(9)=col3
michael@0 502
michael@0 503 movdqa xmm3,xmm0 ; transpose coefficients(phase 3)
michael@0 504 punpcklqdq xmm0,xmm6 ; xmm0=col4=(04 14 24 34 44 54 64 74)
michael@0 505 punpckhqdq xmm3,xmm6 ; xmm3=col5=(05 15 25 35 45 55 65 75)
michael@0 506 movdqa xmm4,xmm2 ; transpose coefficients(phase 3)
michael@0 507 punpcklqdq xmm2,xmm5 ; xmm2=col6=(06 16 26 36 46 56 66 76)
michael@0 508 punpckhqdq xmm4,xmm5 ; xmm4=col7=(07 17 27 37 47 57 67 77)
michael@0 509
michael@0 510 movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5
michael@0 511 movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7
michael@0 512 .column_end:
michael@0 513
michael@0 514 ; -- Prefetch the next coefficient block
michael@0 515
michael@0 516 prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32]
michael@0 517 prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32]
michael@0 518 prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32]
michael@0 519 prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32]
michael@0 520
michael@0 521 ; ---- Pass 2: process rows from work array, store into output array.
michael@0 522
michael@0 523 mov eax, [original_ebp]
michael@0 524 mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *)
michael@0 525 mov eax, JDIMENSION [output_col(eax)]
michael@0 526
michael@0 527 ; -- Even part
michael@0 528
michael@0 529 ; xmm7=col0, xmm1=col2, xmm0=col4, xmm2=col6
michael@0 530
michael@0 531 ; (Original)
michael@0 532 ; z1 = (z2 + z3) * 0.541196100;
michael@0 533 ; tmp2 = z1 + z3 * -1.847759065;
michael@0 534 ; tmp3 = z1 + z2 * 0.765366865;
michael@0 535 ;
michael@0 536 ; (This implementation)
michael@0 537 ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065);
michael@0 538 ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100;
michael@0 539
michael@0 540 movdqa xmm6,xmm1 ; xmm1=in2=z2
michael@0 541 movdqa xmm5,xmm1
michael@0 542 punpcklwd xmm6,xmm2 ; xmm2=in6=z3
michael@0 543 punpckhwd xmm5,xmm2
michael@0 544 movdqa xmm1,xmm6
michael@0 545 movdqa xmm2,xmm5
michael@0 546 pmaddwd xmm6,[GOTOFF(ebx,PW_F130_F054)] ; xmm6=tmp3L
michael@0 547 pmaddwd xmm5,[GOTOFF(ebx,PW_F130_F054)] ; xmm5=tmp3H
michael@0 548 pmaddwd xmm1,[GOTOFF(ebx,PW_F054_MF130)] ; xmm1=tmp2L
michael@0 549 pmaddwd xmm2,[GOTOFF(ebx,PW_F054_MF130)] ; xmm2=tmp2H
michael@0 550
michael@0 551 movdqa xmm3,xmm7
michael@0 552 paddw xmm7,xmm0 ; xmm7=in0+in4
michael@0 553 psubw xmm3,xmm0 ; xmm3=in0-in4
michael@0 554
michael@0 555 pxor xmm4,xmm4
michael@0 556 pxor xmm0,xmm0
michael@0 557 punpcklwd xmm4,xmm7 ; xmm4=tmp0L
michael@0 558 punpckhwd xmm0,xmm7 ; xmm0=tmp0H
michael@0 559 psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS
michael@0 560 psrad xmm0,(16-CONST_BITS) ; psrad xmm0,16 & pslld xmm0,CONST_BITS
michael@0 561
michael@0 562 movdqa xmm7,xmm4
michael@0 563 paddd xmm4,xmm6 ; xmm4=tmp10L
michael@0 564 psubd xmm7,xmm6 ; xmm7=tmp13L
michael@0 565 movdqa xmm6,xmm0
michael@0 566 paddd xmm0,xmm5 ; xmm0=tmp10H
michael@0 567 psubd xmm6,xmm5 ; xmm6=tmp13H
michael@0 568
michael@0 569 movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=tmp10L
michael@0 570 movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp10H
michael@0 571 movdqa XMMWORD [wk(2)], xmm7 ; wk(2)=tmp13L
michael@0 572 movdqa XMMWORD [wk(3)], xmm6 ; wk(3)=tmp13H
michael@0 573
michael@0 574 pxor xmm5,xmm5
michael@0 575 pxor xmm4,xmm4
michael@0 576 punpcklwd xmm5,xmm3 ; xmm5=tmp1L
michael@0 577 punpckhwd xmm4,xmm3 ; xmm4=tmp1H
michael@0 578 psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS
michael@0 579 psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS
michael@0 580
michael@0 581 movdqa xmm0,xmm5
michael@0 582 paddd xmm5,xmm1 ; xmm5=tmp11L
michael@0 583 psubd xmm0,xmm1 ; xmm0=tmp12L
michael@0 584 movdqa xmm7,xmm4
michael@0 585 paddd xmm4,xmm2 ; xmm4=tmp11H
michael@0 586 psubd xmm7,xmm2 ; xmm7=tmp12H
michael@0 587
michael@0 588 movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L
michael@0 589 movdqa XMMWORD [wk(5)], xmm4 ; wk(5)=tmp11H
michael@0 590 movdqa XMMWORD [wk(6)], xmm0 ; wk(6)=tmp12L
michael@0 591 movdqa XMMWORD [wk(7)], xmm7 ; wk(7)=tmp12H
michael@0 592
michael@0 593 ; -- Odd part
michael@0 594
michael@0 595 movdqa xmm6, XMMWORD [wk(9)] ; xmm6=col3
michael@0 596 movdqa xmm3, XMMWORD [wk(8)] ; xmm3=col1
michael@0 597 movdqa xmm1, XMMWORD [wk(11)] ; xmm1=col7
michael@0 598 movdqa xmm2, XMMWORD [wk(10)] ; xmm2=col5
michael@0 599
michael@0 600 movdqa xmm5,xmm6
michael@0 601 movdqa xmm4,xmm3
michael@0 602 paddw xmm5,xmm1 ; xmm5=z3
michael@0 603 paddw xmm4,xmm2 ; xmm4=z4
michael@0 604
michael@0 605 ; (Original)
michael@0 606 ; z5 = (z3 + z4) * 1.175875602;
michael@0 607 ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644;
michael@0 608 ; z3 += z5; z4 += z5;
michael@0 609 ;
michael@0 610 ; (This implementation)
michael@0 611 ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602;
michael@0 612 ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644);
michael@0 613
michael@0 614 movdqa xmm0,xmm5
michael@0 615 movdqa xmm7,xmm5
michael@0 616 punpcklwd xmm0,xmm4
michael@0 617 punpckhwd xmm7,xmm4
michael@0 618 movdqa xmm5,xmm0
michael@0 619 movdqa xmm4,xmm7
michael@0 620 pmaddwd xmm0,[GOTOFF(ebx,PW_MF078_F117)] ; xmm0=z3L
michael@0 621 pmaddwd xmm7,[GOTOFF(ebx,PW_MF078_F117)] ; xmm7=z3H
michael@0 622 pmaddwd xmm5,[GOTOFF(ebx,PW_F117_F078)] ; xmm5=z4L
michael@0 623 pmaddwd xmm4,[GOTOFF(ebx,PW_F117_F078)] ; xmm4=z4H
michael@0 624
michael@0 625 movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=z3L
michael@0 626 movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=z3H
michael@0 627
michael@0 628 ; (Original)
michael@0 629 ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2;
michael@0 630 ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869;
michael@0 631 ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110;
michael@0 632 ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
michael@0 633 ; tmp0 += z1 + z3; tmp1 += z2 + z4;
michael@0 634 ; tmp2 += z2 + z3; tmp3 += z1 + z4;
michael@0 635 ;
michael@0 636 ; (This implementation)
michael@0 637 ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223;
michael@0 638 ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447;
michael@0 639 ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447);
michael@0 640 ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223);
michael@0 641 ; tmp0 += z3; tmp1 += z4;
michael@0 642 ; tmp2 += z3; tmp3 += z4;
michael@0 643
michael@0 644 movdqa xmm0,xmm1
michael@0 645 movdqa xmm7,xmm1
michael@0 646 punpcklwd xmm0,xmm3
michael@0 647 punpckhwd xmm7,xmm3
michael@0 648 movdqa xmm1,xmm0
michael@0 649 movdqa xmm3,xmm7
michael@0 650 pmaddwd xmm0,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm0=tmp0L
michael@0 651 pmaddwd xmm7,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm7=tmp0H
michael@0 652 pmaddwd xmm1,[GOTOFF(ebx,PW_MF089_F060)] ; xmm1=tmp3L
michael@0 653 pmaddwd xmm3,[GOTOFF(ebx,PW_MF089_F060)] ; xmm3=tmp3H
michael@0 654
michael@0 655 paddd xmm0, XMMWORD [wk(10)] ; xmm0=tmp0L
michael@0 656 paddd xmm7, XMMWORD [wk(11)] ; xmm7=tmp0H
michael@0 657 paddd xmm1,xmm5 ; xmm1=tmp3L
michael@0 658 paddd xmm3,xmm4 ; xmm3=tmp3H
michael@0 659
michael@0 660 movdqa XMMWORD [wk(8)], xmm0 ; wk(8)=tmp0L
michael@0 661 movdqa XMMWORD [wk(9)], xmm7 ; wk(9)=tmp0H
michael@0 662
michael@0 663 movdqa xmm0,xmm2
michael@0 664 movdqa xmm7,xmm2
michael@0 665 punpcklwd xmm0,xmm6
michael@0 666 punpckhwd xmm7,xmm6
michael@0 667 movdqa xmm2,xmm0
michael@0 668 movdqa xmm6,xmm7
michael@0 669 pmaddwd xmm0,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm0=tmp1L
michael@0 670 pmaddwd xmm7,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm7=tmp1H
michael@0 671 pmaddwd xmm2,[GOTOFF(ebx,PW_MF256_F050)] ; xmm2=tmp2L
michael@0 672 pmaddwd xmm6,[GOTOFF(ebx,PW_MF256_F050)] ; xmm6=tmp2H
michael@0 673
michael@0 674 paddd xmm0,xmm5 ; xmm0=tmp1L
michael@0 675 paddd xmm7,xmm4 ; xmm7=tmp1H
michael@0 676 paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp2L
michael@0 677 paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H
michael@0 678
michael@0 679 movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=tmp1L
michael@0 680 movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=tmp1H
michael@0 681
michael@0 682 ; -- Final output stage
michael@0 683
michael@0 684 movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L
michael@0 685 movdqa xmm4, XMMWORD [wk(1)] ; xmm4=tmp10H
michael@0 686
michael@0 687 movdqa xmm0,xmm5
michael@0 688 movdqa xmm7,xmm4
michael@0 689 paddd xmm5,xmm1 ; xmm5=data0L
michael@0 690 paddd xmm4,xmm3 ; xmm4=data0H
michael@0 691 psubd xmm0,xmm1 ; xmm0=data7L
michael@0 692 psubd xmm7,xmm3 ; xmm7=data7H
michael@0 693
michael@0 694 movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm1=[PD_DESCALE_P2]
michael@0 695
michael@0 696 paddd xmm5,xmm1
michael@0 697 paddd xmm4,xmm1
michael@0 698 psrad xmm5,DESCALE_P2
michael@0 699 psrad xmm4,DESCALE_P2
michael@0 700 paddd xmm0,xmm1
michael@0 701 paddd xmm7,xmm1
michael@0 702 psrad xmm0,DESCALE_P2
michael@0 703 psrad xmm7,DESCALE_P2
michael@0 704
michael@0 705 packssdw xmm5,xmm4 ; xmm5=data0=(00 10 20 30 40 50 60 70)
michael@0 706 packssdw xmm0,xmm7 ; xmm0=data7=(07 17 27 37 47 57 67 77)
michael@0 707
michael@0 708 movdqa xmm3, XMMWORD [wk(4)] ; xmm3=tmp11L
michael@0 709 movdqa xmm1, XMMWORD [wk(5)] ; xmm1=tmp11H
michael@0 710
michael@0 711 movdqa xmm4,xmm3
michael@0 712 movdqa xmm7,xmm1
michael@0 713 paddd xmm3,xmm2 ; xmm3=data1L
michael@0 714 paddd xmm1,xmm6 ; xmm1=data1H
michael@0 715 psubd xmm4,xmm2 ; xmm4=data6L
michael@0 716 psubd xmm7,xmm6 ; xmm7=data6H
michael@0 717
michael@0 718 movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm2=[PD_DESCALE_P2]
michael@0 719
michael@0 720 paddd xmm3,xmm2
michael@0 721 paddd xmm1,xmm2
michael@0 722 psrad xmm3,DESCALE_P2
michael@0 723 psrad xmm1,DESCALE_P2
michael@0 724 paddd xmm4,xmm2
michael@0 725 paddd xmm7,xmm2
michael@0 726 psrad xmm4,DESCALE_P2
michael@0 727 psrad xmm7,DESCALE_P2
michael@0 728
michael@0 729 packssdw xmm3,xmm1 ; xmm3=data1=(01 11 21 31 41 51 61 71)
michael@0 730 packssdw xmm4,xmm7 ; xmm4=data6=(06 16 26 36 46 56 66 76)
michael@0 731
michael@0 732 packsswb xmm5,xmm4 ; xmm5=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
michael@0 733 packsswb xmm3,xmm0 ; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
michael@0 734
michael@0 735 movdqa xmm6, XMMWORD [wk(6)] ; xmm6=tmp12L
michael@0 736 movdqa xmm2, XMMWORD [wk(7)] ; xmm2=tmp12H
michael@0 737 movdqa xmm1, XMMWORD [wk(10)] ; xmm1=tmp1L
michael@0 738 movdqa xmm7, XMMWORD [wk(11)] ; xmm7=tmp1H
michael@0 739
michael@0 740 movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
michael@0 741 movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
michael@0 742
michael@0 743 movdqa xmm4,xmm6
michael@0 744 movdqa xmm0,xmm2
michael@0 745 paddd xmm6,xmm1 ; xmm6=data2L
michael@0 746 paddd xmm2,xmm7 ; xmm2=data2H
michael@0 747 psubd xmm4,xmm1 ; xmm4=data5L
michael@0 748 psubd xmm0,xmm7 ; xmm0=data5H
michael@0 749
michael@0 750 movdqa xmm5,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm5=[PD_DESCALE_P2]
michael@0 751
michael@0 752 paddd xmm6,xmm5
michael@0 753 paddd xmm2,xmm5
michael@0 754 psrad xmm6,DESCALE_P2
michael@0 755 psrad xmm2,DESCALE_P2
michael@0 756 paddd xmm4,xmm5
michael@0 757 paddd xmm0,xmm5
michael@0 758 psrad xmm4,DESCALE_P2
michael@0 759 psrad xmm0,DESCALE_P2
michael@0 760
michael@0 761 packssdw xmm6,xmm2 ; xmm6=data2=(02 12 22 32 42 52 62 72)
michael@0 762 packssdw xmm4,xmm0 ; xmm4=data5=(05 15 25 35 45 55 65 75)
michael@0 763
michael@0 764 movdqa xmm3, XMMWORD [wk(2)] ; xmm3=tmp13L
michael@0 765 movdqa xmm1, XMMWORD [wk(3)] ; xmm1=tmp13H
michael@0 766 movdqa xmm7, XMMWORD [wk(8)] ; xmm7=tmp0L
michael@0 767 movdqa xmm5, XMMWORD [wk(9)] ; xmm5=tmp0H
michael@0 768
michael@0 769 movdqa xmm2,xmm3
michael@0 770 movdqa xmm0,xmm1
michael@0 771 paddd xmm3,xmm7 ; xmm3=data3L
michael@0 772 paddd xmm1,xmm5 ; xmm1=data3H
michael@0 773 psubd xmm2,xmm7 ; xmm2=data4L
michael@0 774 psubd xmm0,xmm5 ; xmm0=data4H
michael@0 775
michael@0 776 movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm7=[PD_DESCALE_P2]
michael@0 777
michael@0 778 paddd xmm3,xmm7
michael@0 779 paddd xmm1,xmm7
michael@0 780 psrad xmm3,DESCALE_P2
michael@0 781 psrad xmm1,DESCALE_P2
michael@0 782 paddd xmm2,xmm7
michael@0 783 paddd xmm0,xmm7
michael@0 784 psrad xmm2,DESCALE_P2
michael@0 785 psrad xmm0,DESCALE_P2
michael@0 786
michael@0 787 movdqa xmm5,[GOTOFF(ebx,PB_CENTERJSAMP)] ; xmm5=[PB_CENTERJSAMP]
michael@0 788
michael@0 789 packssdw xmm3,xmm1 ; xmm3=data3=(03 13 23 33 43 53 63 73)
michael@0 790 packssdw xmm2,xmm0 ; xmm2=data4=(04 14 24 34 44 54 64 74)
michael@0 791
michael@0 792 movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
michael@0 793 movdqa xmm1, XMMWORD [wk(1)] ; xmm1=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
michael@0 794
michael@0 795 packsswb xmm6,xmm2 ; xmm6=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74)
michael@0 796 packsswb xmm3,xmm4 ; xmm3=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75)
michael@0 797
michael@0 798 paddb xmm7,xmm5
michael@0 799 paddb xmm1,xmm5
michael@0 800 paddb xmm6,xmm5
michael@0 801 paddb xmm3,xmm5
michael@0 802
michael@0 803 movdqa xmm0,xmm7 ; transpose coefficients(phase 1)
michael@0 804 punpcklbw xmm7,xmm1 ; xmm7=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71)
michael@0 805 punpckhbw xmm0,xmm1 ; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77)
michael@0 806 movdqa xmm2,xmm6 ; transpose coefficients(phase 1)
michael@0 807 punpcklbw xmm6,xmm3 ; xmm6=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73)
michael@0 808 punpckhbw xmm2,xmm3 ; xmm2=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75)
michael@0 809
michael@0 810 movdqa xmm4,xmm7 ; transpose coefficients(phase 2)
michael@0 811 punpcklwd xmm7,xmm6 ; xmm7=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
michael@0 812 punpckhwd xmm4,xmm6 ; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73)
michael@0 813 movdqa xmm5,xmm2 ; transpose coefficients(phase 2)
michael@0 814 punpcklwd xmm2,xmm0 ; xmm2=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
michael@0 815 punpckhwd xmm5,xmm0 ; xmm5=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77)
michael@0 816
michael@0 817 movdqa xmm1,xmm7 ; transpose coefficients(phase 3)
michael@0 818 punpckldq xmm7,xmm2 ; xmm7=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
michael@0 819 punpckhdq xmm1,xmm2 ; xmm1=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
michael@0 820 movdqa xmm3,xmm4 ; transpose coefficients(phase 3)
michael@0 821 punpckldq xmm4,xmm5 ; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57)
michael@0 822 punpckhdq xmm3,xmm5 ; xmm3=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77)
michael@0 823
michael@0 824 pshufd xmm6,xmm7,0x4E ; xmm6=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
michael@0 825 pshufd xmm0,xmm1,0x4E ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
michael@0 826 pshufd xmm2,xmm4,0x4E ; xmm2=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47)
michael@0 827 pshufd xmm5,xmm3,0x4E ; xmm5=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67)
michael@0 828
michael@0 829 mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
michael@0 830 mov esi, JSAMPROW [edi+2*SIZEOF_JSAMPROW]
michael@0 831 movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm7
michael@0 832 movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm1
michael@0 833 mov edx, JSAMPROW [edi+4*SIZEOF_JSAMPROW]
michael@0 834 mov esi, JSAMPROW [edi+6*SIZEOF_JSAMPROW]
michael@0 835 movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm4
michael@0 836 movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm3
michael@0 837
michael@0 838 mov edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
michael@0 839 mov esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW]
michael@0 840 movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6
michael@0 841 movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm0
michael@0 842 mov edx, JSAMPROW [edi+5*SIZEOF_JSAMPROW]
michael@0 843 mov esi, JSAMPROW [edi+7*SIZEOF_JSAMPROW]
michael@0 844 movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm2
michael@0 845 movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm5
michael@0 846
michael@0 847 pop edi
michael@0 848 pop esi
michael@0 849 ; pop edx ; need not be preserved
michael@0 850 ; pop ecx ; unused
michael@0 851 poppic ebx
michael@0 852 mov esp,ebp ; esp <- aligned ebp
michael@0 853 pop esp ; esp <- original ebp
michael@0 854 pop ebp
michael@0 855 ret
michael@0 856
michael@0 857 ; For some reason, the OS X linker does not honor the request to align the
michael@0 858 ; segment unless we do this.
michael@0 859 align 16

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