DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame^] | 1 | ; |
| 2 | ; jiss2int.asm - accurate integer IDCT (64-bit SSE2) |
| 3 | ; |
| 4 | ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB |
| 5 | ; Copyright 2009 D. R. Commander |
| 6 | ; |
| 7 | ; Based on |
| 8 | ; x86 SIMD extension for IJG JPEG library |
| 9 | ; Copyright (C) 1999-2006, MIYASAKA Masaru. |
| 10 | ; For conditions of distribution and use, see copyright notice in jsimdext.inc |
| 11 | ; |
| 12 | ; This file should be assembled with NASM (Netwide Assembler), |
| 13 | ; can *not* be assembled with Microsoft's MASM or any compatible |
| 14 | ; assembler (including Borland's Turbo Assembler). |
| 15 | ; NASM is available from http://nasm.sourceforge.net/ or |
| 16 | ; http://sourceforge.net/project/showfiles.php?group_id=6208 |
| 17 | ; |
| 18 | ; This file contains a slow-but-accurate integer implementation of the |
| 19 | ; inverse DCT (Discrete Cosine Transform). The following code is based |
| 20 | ; directly on the IJG's original jidctint.c; see the jidctint.c for |
| 21 | ; more details. |
| 22 | ; |
| 23 | ; [TAB8] |
| 24 | |
| 25 | %include "jsimdext.inc" |
| 26 | %include "jdct.inc" |
| 27 | |
| 28 | ; -------------------------------------------------------------------------- |
| 29 | |
| 30 | %define CONST_BITS 13 |
| 31 | %define PASS1_BITS 2 |
| 32 | |
| 33 | %define DESCALE_P1 (CONST_BITS-PASS1_BITS) |
| 34 | %define DESCALE_P2 (CONST_BITS+PASS1_BITS+3) |
| 35 | |
| 36 | %if CONST_BITS == 13 |
| 37 | F_0_298 equ 2446 ; FIX(0.298631336) |
| 38 | F_0_390 equ 3196 ; FIX(0.390180644) |
| 39 | F_0_541 equ 4433 ; FIX(0.541196100) |
| 40 | F_0_765 equ 6270 ; FIX(0.765366865) |
| 41 | F_0_899 equ 7373 ; FIX(0.899976223) |
| 42 | F_1_175 equ 9633 ; FIX(1.175875602) |
| 43 | F_1_501 equ 12299 ; FIX(1.501321110) |
| 44 | F_1_847 equ 15137 ; FIX(1.847759065) |
| 45 | F_1_961 equ 16069 ; FIX(1.961570560) |
| 46 | F_2_053 equ 16819 ; FIX(2.053119869) |
| 47 | F_2_562 equ 20995 ; FIX(2.562915447) |
| 48 | F_3_072 equ 25172 ; FIX(3.072711026) |
| 49 | %else |
| 50 | ; NASM cannot do compile-time arithmetic on floating-point constants. |
| 51 | %define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n)) |
| 52 | F_0_298 equ DESCALE( 320652955,30-CONST_BITS) ; FIX(0.298631336) |
| 53 | F_0_390 equ DESCALE( 418953276,30-CONST_BITS) ; FIX(0.390180644) |
| 54 | F_0_541 equ DESCALE( 581104887,30-CONST_BITS) ; FIX(0.541196100) |
| 55 | F_0_765 equ DESCALE( 821806413,30-CONST_BITS) ; FIX(0.765366865) |
| 56 | F_0_899 equ DESCALE( 966342111,30-CONST_BITS) ; FIX(0.899976223) |
| 57 | F_1_175 equ DESCALE(1262586813,30-CONST_BITS) ; FIX(1.175875602) |
| 58 | F_1_501 equ DESCALE(1612031267,30-CONST_BITS) ; FIX(1.501321110) |
| 59 | F_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065) |
| 60 | F_1_961 equ DESCALE(2106220350,30-CONST_BITS) ; FIX(1.961570560) |
| 61 | F_2_053 equ DESCALE(2204520673,30-CONST_BITS) ; FIX(2.053119869) |
| 62 | F_2_562 equ DESCALE(2751909506,30-CONST_BITS) ; FIX(2.562915447) |
| 63 | F_3_072 equ DESCALE(3299298341,30-CONST_BITS) ; FIX(3.072711026) |
| 64 | %endif |
| 65 | |
| 66 | ; -------------------------------------------------------------------------- |
| 67 | SECTION SEG_CONST |
| 68 | |
| 69 | alignz 16 |
| 70 | global EXTN(jconst_idct_islow_sse2) |
| 71 | |
| 72 | EXTN(jconst_idct_islow_sse2): |
| 73 | |
| 74 | PW_F130_F054 times 4 dw (F_0_541+F_0_765), F_0_541 |
| 75 | PW_F054_MF130 times 4 dw F_0_541, (F_0_541-F_1_847) |
| 76 | PW_MF078_F117 times 4 dw (F_1_175-F_1_961), F_1_175 |
| 77 | PW_F117_F078 times 4 dw F_1_175, (F_1_175-F_0_390) |
| 78 | PW_MF060_MF089 times 4 dw (F_0_298-F_0_899),-F_0_899 |
| 79 | PW_MF089_F060 times 4 dw -F_0_899, (F_1_501-F_0_899) |
| 80 | PW_MF050_MF256 times 4 dw (F_2_053-F_2_562),-F_2_562 |
| 81 | PW_MF256_F050 times 4 dw -F_2_562, (F_3_072-F_2_562) |
| 82 | PD_DESCALE_P1 times 4 dd 1 << (DESCALE_P1-1) |
| 83 | PD_DESCALE_P2 times 4 dd 1 << (DESCALE_P2-1) |
| 84 | PB_CENTERJSAMP times 16 db CENTERJSAMPLE |
| 85 | |
| 86 | alignz 16 |
| 87 | |
| 88 | ; -------------------------------------------------------------------------- |
| 89 | SECTION SEG_TEXT |
| 90 | BITS 64 |
| 91 | ; |
| 92 | ; Perform dequantization and inverse DCT on one block of coefficients. |
| 93 | ; |
| 94 | ; GLOBAL(void) |
| 95 | ; jsimd_idct_islow_sse2 (void * dct_table, JCOEFPTR coef_block, |
| 96 | ; JSAMPARRAY output_buf, JDIMENSION output_col) |
| 97 | ; |
| 98 | |
| 99 | ; r10 = jpeg_component_info * compptr |
| 100 | ; r11 = JCOEFPTR coef_block |
| 101 | ; r12 = JSAMPARRAY output_buf |
| 102 | ; r13 = JDIMENSION output_col |
| 103 | |
| 104 | %define original_rbp rbp+0 |
| 105 | %define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] |
| 106 | %define WK_NUM 12 |
| 107 | |
| 108 | align 16 |
| 109 | global EXTN(jsimd_idct_islow_sse2) |
| 110 | |
| 111 | EXTN(jsimd_idct_islow_sse2): |
| 112 | push rbp |
| 113 | mov rax,rsp ; rax = original rbp |
| 114 | sub rsp, byte 4 |
| 115 | and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits |
| 116 | mov [rsp],rax |
| 117 | mov rbp,rsp ; rbp = aligned rbp |
| 118 | lea rsp, [wk(0)] |
| 119 | collect_args |
| 120 | |
| 121 | ; ---- Pass 1: process columns from input. |
| 122 | |
| 123 | mov rdx, r10 ; quantptr |
| 124 | mov rsi, r11 ; inptr |
| 125 | |
| 126 | %ifndef NO_ZERO_COLUMN_TEST_ISLOW_SSE2 |
| 127 | mov eax, DWORD [DWBLOCK(1,0,rsi,SIZEOF_JCOEF)] |
| 128 | or eax, DWORD [DWBLOCK(2,0,rsi,SIZEOF_JCOEF)] |
| 129 | jnz near .columnDCT |
| 130 | |
| 131 | movdqa xmm0, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)] |
| 132 | movdqa xmm1, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_JCOEF)] |
| 133 | por xmm0, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)] |
| 134 | por xmm1, XMMWORD [XMMBLOCK(4,0,rsi,SIZEOF_JCOEF)] |
| 135 | por xmm0, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)] |
| 136 | por xmm1, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_JCOEF)] |
| 137 | por xmm0, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)] |
| 138 | por xmm1,xmm0 |
| 139 | packsswb xmm1,xmm1 |
| 140 | packsswb xmm1,xmm1 |
| 141 | movd eax,xmm1 |
| 142 | test rax,rax |
| 143 | jnz short .columnDCT |
| 144 | |
| 145 | ; -- AC terms all zero |
| 146 | |
| 147 | movdqa xmm5, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_JCOEF)] |
| 148 | pmullw xmm5, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 149 | |
| 150 | psllw xmm5,PASS1_BITS |
| 151 | |
| 152 | movdqa xmm4,xmm5 ; xmm5=in0=(00 01 02 03 04 05 06 07) |
| 153 | punpcklwd xmm5,xmm5 ; xmm5=(00 00 01 01 02 02 03 03) |
| 154 | punpckhwd xmm4,xmm4 ; xmm4=(04 04 05 05 06 06 07 07) |
| 155 | |
| 156 | pshufd xmm7,xmm5,0x00 ; xmm7=col0=(00 00 00 00 00 00 00 00) |
| 157 | pshufd xmm6,xmm5,0x55 ; xmm6=col1=(01 01 01 01 01 01 01 01) |
| 158 | pshufd xmm1,xmm5,0xAA ; xmm1=col2=(02 02 02 02 02 02 02 02) |
| 159 | pshufd xmm5,xmm5,0xFF ; xmm5=col3=(03 03 03 03 03 03 03 03) |
| 160 | pshufd xmm0,xmm4,0x00 ; xmm0=col4=(04 04 04 04 04 04 04 04) |
| 161 | pshufd xmm3,xmm4,0x55 ; xmm3=col5=(05 05 05 05 05 05 05 05) |
| 162 | pshufd xmm2,xmm4,0xAA ; xmm2=col6=(06 06 06 06 06 06 06 06) |
| 163 | pshufd xmm4,xmm4,0xFF ; xmm4=col7=(07 07 07 07 07 07 07 07) |
| 164 | |
| 165 | movdqa XMMWORD [wk(8)], xmm6 ; wk(8)=col1 |
| 166 | movdqa XMMWORD [wk(9)], xmm5 ; wk(9)=col3 |
| 167 | movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5 |
| 168 | movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7 |
| 169 | jmp near .column_end |
| 170 | %endif |
| 171 | .columnDCT: |
| 172 | |
| 173 | ; -- Even part |
| 174 | |
| 175 | movdqa xmm0, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_JCOEF)] |
| 176 | movdqa xmm1, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_JCOEF)] |
| 177 | pmullw xmm0, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 178 | pmullw xmm1, XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 179 | movdqa xmm2, XMMWORD [XMMBLOCK(4,0,rsi,SIZEOF_JCOEF)] |
| 180 | movdqa xmm3, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_JCOEF)] |
| 181 | pmullw xmm2, XMMWORD [XMMBLOCK(4,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 182 | pmullw xmm3, XMMWORD [XMMBLOCK(6,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 183 | |
| 184 | ; (Original) |
| 185 | ; z1 = (z2 + z3) * 0.541196100; |
| 186 | ; tmp2 = z1 + z3 * -1.847759065; |
| 187 | ; tmp3 = z1 + z2 * 0.765366865; |
| 188 | ; |
| 189 | ; (This implementation) |
| 190 | ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065); |
| 191 | ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100; |
| 192 | |
| 193 | movdqa xmm4,xmm1 ; xmm1=in2=z2 |
| 194 | movdqa xmm5,xmm1 |
| 195 | punpcklwd xmm4,xmm3 ; xmm3=in6=z3 |
| 196 | punpckhwd xmm5,xmm3 |
| 197 | movdqa xmm1,xmm4 |
| 198 | movdqa xmm3,xmm5 |
| 199 | pmaddwd xmm4,[PW_F130_F054] ; xmm4=tmp3L |
| 200 | pmaddwd xmm5,[PW_F130_F054] ; xmm5=tmp3H |
| 201 | pmaddwd xmm1,[PW_F054_MF130] ; xmm1=tmp2L |
| 202 | pmaddwd xmm3,[PW_F054_MF130] ; xmm3=tmp2H |
| 203 | |
| 204 | movdqa xmm6,xmm0 |
| 205 | paddw xmm0,xmm2 ; xmm0=in0+in4 |
| 206 | psubw xmm6,xmm2 ; xmm6=in0-in4 |
| 207 | |
| 208 | pxor xmm7,xmm7 |
| 209 | pxor xmm2,xmm2 |
| 210 | punpcklwd xmm7,xmm0 ; xmm7=tmp0L |
| 211 | punpckhwd xmm2,xmm0 ; xmm2=tmp0H |
| 212 | psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS |
| 213 | psrad xmm2,(16-CONST_BITS) ; psrad xmm2,16 & pslld xmm2,CONST_BITS |
| 214 | |
| 215 | movdqa xmm0,xmm7 |
| 216 | paddd xmm7,xmm4 ; xmm7=tmp10L |
| 217 | psubd xmm0,xmm4 ; xmm0=tmp13L |
| 218 | movdqa xmm4,xmm2 |
| 219 | paddd xmm2,xmm5 ; xmm2=tmp10H |
| 220 | psubd xmm4,xmm5 ; xmm4=tmp13H |
| 221 | |
| 222 | movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=tmp10L |
| 223 | movdqa XMMWORD [wk(1)], xmm2 ; wk(1)=tmp10H |
| 224 | movdqa XMMWORD [wk(2)], xmm0 ; wk(2)=tmp13L |
| 225 | movdqa XMMWORD [wk(3)], xmm4 ; wk(3)=tmp13H |
| 226 | |
| 227 | pxor xmm5,xmm5 |
| 228 | pxor xmm7,xmm7 |
| 229 | punpcklwd xmm5,xmm6 ; xmm5=tmp1L |
| 230 | punpckhwd xmm7,xmm6 ; xmm7=tmp1H |
| 231 | psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS |
| 232 | psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS |
| 233 | |
| 234 | movdqa xmm2,xmm5 |
| 235 | paddd xmm5,xmm1 ; xmm5=tmp11L |
| 236 | psubd xmm2,xmm1 ; xmm2=tmp12L |
| 237 | movdqa xmm0,xmm7 |
| 238 | paddd xmm7,xmm3 ; xmm7=tmp11H |
| 239 | psubd xmm0,xmm3 ; xmm0=tmp12H |
| 240 | |
| 241 | movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L |
| 242 | movdqa XMMWORD [wk(5)], xmm7 ; wk(5)=tmp11H |
| 243 | movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=tmp12L |
| 244 | movdqa XMMWORD [wk(7)], xmm0 ; wk(7)=tmp12H |
| 245 | |
| 246 | ; -- Odd part |
| 247 | |
| 248 | movdqa xmm4, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)] |
| 249 | movdqa xmm6, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)] |
| 250 | pmullw xmm4, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 251 | pmullw xmm6, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 252 | movdqa xmm1, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)] |
| 253 | movdqa xmm3, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)] |
| 254 | pmullw xmm1, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 255 | pmullw xmm3, XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 256 | |
| 257 | movdqa xmm5,xmm6 |
| 258 | movdqa xmm7,xmm4 |
| 259 | paddw xmm5,xmm3 ; xmm5=z3 |
| 260 | paddw xmm7,xmm1 ; xmm7=z4 |
| 261 | |
| 262 | ; (Original) |
| 263 | ; z5 = (z3 + z4) * 1.175875602; |
| 264 | ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644; |
| 265 | ; z3 += z5; z4 += z5; |
| 266 | ; |
| 267 | ; (This implementation) |
| 268 | ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602; |
| 269 | ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644); |
| 270 | |
| 271 | movdqa xmm2,xmm5 |
| 272 | movdqa xmm0,xmm5 |
| 273 | punpcklwd xmm2,xmm7 |
| 274 | punpckhwd xmm0,xmm7 |
| 275 | movdqa xmm5,xmm2 |
| 276 | movdqa xmm7,xmm0 |
| 277 | pmaddwd xmm2,[PW_MF078_F117] ; xmm2=z3L |
| 278 | pmaddwd xmm0,[PW_MF078_F117] ; xmm0=z3H |
| 279 | pmaddwd xmm5,[PW_F117_F078] ; xmm5=z4L |
| 280 | pmaddwd xmm7,[PW_F117_F078] ; xmm7=z4H |
| 281 | |
| 282 | movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=z3L |
| 283 | movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=z3H |
| 284 | |
| 285 | ; (Original) |
| 286 | ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2; |
| 287 | ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869; |
| 288 | ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110; |
| 289 | ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447; |
| 290 | ; tmp0 += z1 + z3; tmp1 += z2 + z4; |
| 291 | ; tmp2 += z2 + z3; tmp3 += z1 + z4; |
| 292 | ; |
| 293 | ; (This implementation) |
| 294 | ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223; |
| 295 | ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447; |
| 296 | ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447); |
| 297 | ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223); |
| 298 | ; tmp0 += z3; tmp1 += z4; |
| 299 | ; tmp2 += z3; tmp3 += z4; |
| 300 | |
| 301 | movdqa xmm2,xmm3 |
| 302 | movdqa xmm0,xmm3 |
| 303 | punpcklwd xmm2,xmm4 |
| 304 | punpckhwd xmm0,xmm4 |
| 305 | movdqa xmm3,xmm2 |
| 306 | movdqa xmm4,xmm0 |
| 307 | pmaddwd xmm2,[PW_MF060_MF089] ; xmm2=tmp0L |
| 308 | pmaddwd xmm0,[PW_MF060_MF089] ; xmm0=tmp0H |
| 309 | pmaddwd xmm3,[PW_MF089_F060] ; xmm3=tmp3L |
| 310 | pmaddwd xmm4,[PW_MF089_F060] ; xmm4=tmp3H |
| 311 | |
| 312 | paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp0L |
| 313 | paddd xmm0, XMMWORD [wk(11)] ; xmm0=tmp0H |
| 314 | paddd xmm3,xmm5 ; xmm3=tmp3L |
| 315 | paddd xmm4,xmm7 ; xmm4=tmp3H |
| 316 | |
| 317 | movdqa XMMWORD [wk(8)], xmm2 ; wk(8)=tmp0L |
| 318 | movdqa XMMWORD [wk(9)], xmm0 ; wk(9)=tmp0H |
| 319 | |
| 320 | movdqa xmm2,xmm1 |
| 321 | movdqa xmm0,xmm1 |
| 322 | punpcklwd xmm2,xmm6 |
| 323 | punpckhwd xmm0,xmm6 |
| 324 | movdqa xmm1,xmm2 |
| 325 | movdqa xmm6,xmm0 |
| 326 | pmaddwd xmm2,[PW_MF050_MF256] ; xmm2=tmp1L |
| 327 | pmaddwd xmm0,[PW_MF050_MF256] ; xmm0=tmp1H |
| 328 | pmaddwd xmm1,[PW_MF256_F050] ; xmm1=tmp2L |
| 329 | pmaddwd xmm6,[PW_MF256_F050] ; xmm6=tmp2H |
| 330 | |
| 331 | paddd xmm2,xmm5 ; xmm2=tmp1L |
| 332 | paddd xmm0,xmm7 ; xmm0=tmp1H |
| 333 | paddd xmm1, XMMWORD [wk(10)] ; xmm1=tmp2L |
| 334 | paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H |
| 335 | |
| 336 | movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=tmp1L |
| 337 | movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=tmp1H |
| 338 | |
| 339 | ; -- Final output stage |
| 340 | |
| 341 | movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L |
| 342 | movdqa xmm7, XMMWORD [wk(1)] ; xmm7=tmp10H |
| 343 | |
| 344 | movdqa xmm2,xmm5 |
| 345 | movdqa xmm0,xmm7 |
| 346 | paddd xmm5,xmm3 ; xmm5=data0L |
| 347 | paddd xmm7,xmm4 ; xmm7=data0H |
| 348 | psubd xmm2,xmm3 ; xmm2=data7L |
| 349 | psubd xmm0,xmm4 ; xmm0=data7H |
| 350 | |
| 351 | movdqa xmm3,[PD_DESCALE_P1] ; xmm3=[PD_DESCALE_P1] |
| 352 | |
| 353 | paddd xmm5,xmm3 |
| 354 | paddd xmm7,xmm3 |
| 355 | psrad xmm5,DESCALE_P1 |
| 356 | psrad xmm7,DESCALE_P1 |
| 357 | paddd xmm2,xmm3 |
| 358 | paddd xmm0,xmm3 |
| 359 | psrad xmm2,DESCALE_P1 |
| 360 | psrad xmm0,DESCALE_P1 |
| 361 | |
| 362 | packssdw xmm5,xmm7 ; xmm5=data0=(00 01 02 03 04 05 06 07) |
| 363 | packssdw xmm2,xmm0 ; xmm2=data7=(70 71 72 73 74 75 76 77) |
| 364 | |
| 365 | movdqa xmm4, XMMWORD [wk(4)] ; xmm4=tmp11L |
| 366 | movdqa xmm3, XMMWORD [wk(5)] ; xmm3=tmp11H |
| 367 | |
| 368 | movdqa xmm7,xmm4 |
| 369 | movdqa xmm0,xmm3 |
| 370 | paddd xmm4,xmm1 ; xmm4=data1L |
| 371 | paddd xmm3,xmm6 ; xmm3=data1H |
| 372 | psubd xmm7,xmm1 ; xmm7=data6L |
| 373 | psubd xmm0,xmm6 ; xmm0=data6H |
| 374 | |
| 375 | movdqa xmm1,[PD_DESCALE_P1] ; xmm1=[PD_DESCALE_P1] |
| 376 | |
| 377 | paddd xmm4,xmm1 |
| 378 | paddd xmm3,xmm1 |
| 379 | psrad xmm4,DESCALE_P1 |
| 380 | psrad xmm3,DESCALE_P1 |
| 381 | paddd xmm7,xmm1 |
| 382 | paddd xmm0,xmm1 |
| 383 | psrad xmm7,DESCALE_P1 |
| 384 | psrad xmm0,DESCALE_P1 |
| 385 | |
| 386 | packssdw xmm4,xmm3 ; xmm4=data1=(10 11 12 13 14 15 16 17) |
| 387 | packssdw xmm7,xmm0 ; xmm7=data6=(60 61 62 63 64 65 66 67) |
| 388 | |
| 389 | movdqa xmm6,xmm5 ; transpose coefficients(phase 1) |
| 390 | punpcklwd xmm5,xmm4 ; xmm5=(00 10 01 11 02 12 03 13) |
| 391 | punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17) |
| 392 | movdqa xmm1,xmm7 ; transpose coefficients(phase 1) |
| 393 | punpcklwd xmm7,xmm2 ; xmm7=(60 70 61 71 62 72 63 73) |
| 394 | punpckhwd xmm1,xmm2 ; xmm1=(64 74 65 75 66 76 67 77) |
| 395 | |
| 396 | movdqa xmm3, XMMWORD [wk(6)] ; xmm3=tmp12L |
| 397 | movdqa xmm0, XMMWORD [wk(7)] ; xmm0=tmp12H |
| 398 | movdqa xmm4, XMMWORD [wk(10)] ; xmm4=tmp1L |
| 399 | movdqa xmm2, XMMWORD [wk(11)] ; xmm2=tmp1H |
| 400 | |
| 401 | movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 01 11 02 12 03 13) |
| 402 | movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=(04 14 05 15 06 16 07 17) |
| 403 | movdqa XMMWORD [wk(4)], xmm7 ; wk(4)=(60 70 61 71 62 72 63 73) |
| 404 | movdqa XMMWORD [wk(5)], xmm1 ; wk(5)=(64 74 65 75 66 76 67 77) |
| 405 | |
| 406 | movdqa xmm5,xmm3 |
| 407 | movdqa xmm6,xmm0 |
| 408 | paddd xmm3,xmm4 ; xmm3=data2L |
| 409 | paddd xmm0,xmm2 ; xmm0=data2H |
| 410 | psubd xmm5,xmm4 ; xmm5=data5L |
| 411 | psubd xmm6,xmm2 ; xmm6=data5H |
| 412 | |
| 413 | movdqa xmm7,[PD_DESCALE_P1] ; xmm7=[PD_DESCALE_P1] |
| 414 | |
| 415 | paddd xmm3,xmm7 |
| 416 | paddd xmm0,xmm7 |
| 417 | psrad xmm3,DESCALE_P1 |
| 418 | psrad xmm0,DESCALE_P1 |
| 419 | paddd xmm5,xmm7 |
| 420 | paddd xmm6,xmm7 |
| 421 | psrad xmm5,DESCALE_P1 |
| 422 | psrad xmm6,DESCALE_P1 |
| 423 | |
| 424 | packssdw xmm3,xmm0 ; xmm3=data2=(20 21 22 23 24 25 26 27) |
| 425 | packssdw xmm5,xmm6 ; xmm5=data5=(50 51 52 53 54 55 56 57) |
| 426 | |
| 427 | movdqa xmm1, XMMWORD [wk(2)] ; xmm1=tmp13L |
| 428 | movdqa xmm4, XMMWORD [wk(3)] ; xmm4=tmp13H |
| 429 | movdqa xmm2, XMMWORD [wk(8)] ; xmm2=tmp0L |
| 430 | movdqa xmm7, XMMWORD [wk(9)] ; xmm7=tmp0H |
| 431 | |
| 432 | movdqa xmm0,xmm1 |
| 433 | movdqa xmm6,xmm4 |
| 434 | paddd xmm1,xmm2 ; xmm1=data3L |
| 435 | paddd xmm4,xmm7 ; xmm4=data3H |
| 436 | psubd xmm0,xmm2 ; xmm0=data4L |
| 437 | psubd xmm6,xmm7 ; xmm6=data4H |
| 438 | |
| 439 | movdqa xmm2,[PD_DESCALE_P1] ; xmm2=[PD_DESCALE_P1] |
| 440 | |
| 441 | paddd xmm1,xmm2 |
| 442 | paddd xmm4,xmm2 |
| 443 | psrad xmm1,DESCALE_P1 |
| 444 | psrad xmm4,DESCALE_P1 |
| 445 | paddd xmm0,xmm2 |
| 446 | paddd xmm6,xmm2 |
| 447 | psrad xmm0,DESCALE_P1 |
| 448 | psrad xmm6,DESCALE_P1 |
| 449 | |
| 450 | packssdw xmm1,xmm4 ; xmm1=data3=(30 31 32 33 34 35 36 37) |
| 451 | packssdw xmm0,xmm6 ; xmm0=data4=(40 41 42 43 44 45 46 47) |
| 452 | |
| 453 | movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 01 11 02 12 03 13) |
| 454 | movdqa xmm2, XMMWORD [wk(1)] ; xmm2=(04 14 05 15 06 16 07 17) |
| 455 | |
| 456 | movdqa xmm4,xmm3 ; transpose coefficients(phase 1) |
| 457 | punpcklwd xmm3,xmm1 ; xmm3=(20 30 21 31 22 32 23 33) |
| 458 | punpckhwd xmm4,xmm1 ; xmm4=(24 34 25 35 26 36 27 37) |
| 459 | movdqa xmm6,xmm0 ; transpose coefficients(phase 1) |
| 460 | punpcklwd xmm0,xmm5 ; xmm0=(40 50 41 51 42 52 43 53) |
| 461 | punpckhwd xmm6,xmm5 ; xmm6=(44 54 45 55 46 56 47 57) |
| 462 | |
| 463 | movdqa xmm1,xmm7 ; transpose coefficients(phase 2) |
| 464 | punpckldq xmm7,xmm3 ; xmm7=(00 10 20 30 01 11 21 31) |
| 465 | punpckhdq xmm1,xmm3 ; xmm1=(02 12 22 32 03 13 23 33) |
| 466 | movdqa xmm5,xmm2 ; transpose coefficients(phase 2) |
| 467 | punpckldq xmm2,xmm4 ; xmm2=(04 14 24 34 05 15 25 35) |
| 468 | punpckhdq xmm5,xmm4 ; xmm5=(06 16 26 36 07 17 27 37) |
| 469 | |
| 470 | movdqa xmm3, XMMWORD [wk(4)] ; xmm3=(60 70 61 71 62 72 63 73) |
| 471 | movdqa xmm4, XMMWORD [wk(5)] ; xmm4=(64 74 65 75 66 76 67 77) |
| 472 | |
| 473 | movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=(04 14 24 34 05 15 25 35) |
| 474 | movdqa XMMWORD [wk(7)], xmm5 ; wk(7)=(06 16 26 36 07 17 27 37) |
| 475 | |
| 476 | movdqa xmm2,xmm0 ; transpose coefficients(phase 2) |
| 477 | punpckldq xmm0,xmm3 ; xmm0=(40 50 60 70 41 51 61 71) |
| 478 | punpckhdq xmm2,xmm3 ; xmm2=(42 52 62 72 43 53 63 73) |
| 479 | movdqa xmm5,xmm6 ; transpose coefficients(phase 2) |
| 480 | punpckldq xmm6,xmm4 ; xmm6=(44 54 64 74 45 55 65 75) |
| 481 | punpckhdq xmm5,xmm4 ; xmm5=(46 56 66 76 47 57 67 77) |
| 482 | |
| 483 | movdqa xmm3,xmm7 ; transpose coefficients(phase 3) |
| 484 | punpcklqdq xmm7,xmm0 ; xmm7=col0=(00 10 20 30 40 50 60 70) |
| 485 | punpckhqdq xmm3,xmm0 ; xmm3=col1=(01 11 21 31 41 51 61 71) |
| 486 | movdqa xmm4,xmm1 ; transpose coefficients(phase 3) |
| 487 | punpcklqdq xmm1,xmm2 ; xmm1=col2=(02 12 22 32 42 52 62 72) |
| 488 | punpckhqdq xmm4,xmm2 ; xmm4=col3=(03 13 23 33 43 53 63 73) |
| 489 | |
| 490 | movdqa xmm0, XMMWORD [wk(6)] ; xmm0=(04 14 24 34 05 15 25 35) |
| 491 | movdqa xmm2, XMMWORD [wk(7)] ; xmm2=(06 16 26 36 07 17 27 37) |
| 492 | |
| 493 | movdqa XMMWORD [wk(8)], xmm3 ; wk(8)=col1 |
| 494 | movdqa XMMWORD [wk(9)], xmm4 ; wk(9)=col3 |
| 495 | |
| 496 | movdqa xmm3,xmm0 ; transpose coefficients(phase 3) |
| 497 | punpcklqdq xmm0,xmm6 ; xmm0=col4=(04 14 24 34 44 54 64 74) |
| 498 | punpckhqdq xmm3,xmm6 ; xmm3=col5=(05 15 25 35 45 55 65 75) |
| 499 | movdqa xmm4,xmm2 ; transpose coefficients(phase 3) |
| 500 | punpcklqdq xmm2,xmm5 ; xmm2=col6=(06 16 26 36 46 56 66 76) |
| 501 | punpckhqdq xmm4,xmm5 ; xmm4=col7=(07 17 27 37 47 57 67 77) |
| 502 | |
| 503 | movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5 |
| 504 | movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7 |
| 505 | .column_end: |
| 506 | |
| 507 | ; -- Prefetch the next coefficient block |
| 508 | |
| 509 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 0*32] |
| 510 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 1*32] |
| 511 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 2*32] |
| 512 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 3*32] |
| 513 | |
| 514 | ; ---- Pass 2: process rows from work array, store into output array. |
| 515 | |
| 516 | mov rax, [original_rbp] |
| 517 | mov rdi, r12 ; (JSAMPROW *) |
| 518 | mov rax, r13 |
| 519 | |
| 520 | ; -- Even part |
| 521 | |
| 522 | ; xmm7=col0, xmm1=col2, xmm0=col4, xmm2=col6 |
| 523 | |
| 524 | ; (Original) |
| 525 | ; z1 = (z2 + z3) * 0.541196100; |
| 526 | ; tmp2 = z1 + z3 * -1.847759065; |
| 527 | ; tmp3 = z1 + z2 * 0.765366865; |
| 528 | ; |
| 529 | ; (This implementation) |
| 530 | ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065); |
| 531 | ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100; |
| 532 | |
| 533 | movdqa xmm6,xmm1 ; xmm1=in2=z2 |
| 534 | movdqa xmm5,xmm1 |
| 535 | punpcklwd xmm6,xmm2 ; xmm2=in6=z3 |
| 536 | punpckhwd xmm5,xmm2 |
| 537 | movdqa xmm1,xmm6 |
| 538 | movdqa xmm2,xmm5 |
| 539 | pmaddwd xmm6,[PW_F130_F054] ; xmm6=tmp3L |
| 540 | pmaddwd xmm5,[PW_F130_F054] ; xmm5=tmp3H |
| 541 | pmaddwd xmm1,[PW_F054_MF130] ; xmm1=tmp2L |
| 542 | pmaddwd xmm2,[PW_F054_MF130] ; xmm2=tmp2H |
| 543 | |
| 544 | movdqa xmm3,xmm7 |
| 545 | paddw xmm7,xmm0 ; xmm7=in0+in4 |
| 546 | psubw xmm3,xmm0 ; xmm3=in0-in4 |
| 547 | |
| 548 | pxor xmm4,xmm4 |
| 549 | pxor xmm0,xmm0 |
| 550 | punpcklwd xmm4,xmm7 ; xmm4=tmp0L |
| 551 | punpckhwd xmm0,xmm7 ; xmm0=tmp0H |
| 552 | psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS |
| 553 | psrad xmm0,(16-CONST_BITS) ; psrad xmm0,16 & pslld xmm0,CONST_BITS |
| 554 | |
| 555 | movdqa xmm7,xmm4 |
| 556 | paddd xmm4,xmm6 ; xmm4=tmp10L |
| 557 | psubd xmm7,xmm6 ; xmm7=tmp13L |
| 558 | movdqa xmm6,xmm0 |
| 559 | paddd xmm0,xmm5 ; xmm0=tmp10H |
| 560 | psubd xmm6,xmm5 ; xmm6=tmp13H |
| 561 | |
| 562 | movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=tmp10L |
| 563 | movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp10H |
| 564 | movdqa XMMWORD [wk(2)], xmm7 ; wk(2)=tmp13L |
| 565 | movdqa XMMWORD [wk(3)], xmm6 ; wk(3)=tmp13H |
| 566 | |
| 567 | pxor xmm5,xmm5 |
| 568 | pxor xmm4,xmm4 |
| 569 | punpcklwd xmm5,xmm3 ; xmm5=tmp1L |
| 570 | punpckhwd xmm4,xmm3 ; xmm4=tmp1H |
| 571 | psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS |
| 572 | psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS |
| 573 | |
| 574 | movdqa xmm0,xmm5 |
| 575 | paddd xmm5,xmm1 ; xmm5=tmp11L |
| 576 | psubd xmm0,xmm1 ; xmm0=tmp12L |
| 577 | movdqa xmm7,xmm4 |
| 578 | paddd xmm4,xmm2 ; xmm4=tmp11H |
| 579 | psubd xmm7,xmm2 ; xmm7=tmp12H |
| 580 | |
| 581 | movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L |
| 582 | movdqa XMMWORD [wk(5)], xmm4 ; wk(5)=tmp11H |
| 583 | movdqa XMMWORD [wk(6)], xmm0 ; wk(6)=tmp12L |
| 584 | movdqa XMMWORD [wk(7)], xmm7 ; wk(7)=tmp12H |
| 585 | |
| 586 | ; -- Odd part |
| 587 | |
| 588 | movdqa xmm6, XMMWORD [wk(9)] ; xmm6=col3 |
| 589 | movdqa xmm3, XMMWORD [wk(8)] ; xmm3=col1 |
| 590 | movdqa xmm1, XMMWORD [wk(11)] ; xmm1=col7 |
| 591 | movdqa xmm2, XMMWORD [wk(10)] ; xmm2=col5 |
| 592 | |
| 593 | movdqa xmm5,xmm6 |
| 594 | movdqa xmm4,xmm3 |
| 595 | paddw xmm5,xmm1 ; xmm5=z3 |
| 596 | paddw xmm4,xmm2 ; xmm4=z4 |
| 597 | |
| 598 | ; (Original) |
| 599 | ; z5 = (z3 + z4) * 1.175875602; |
| 600 | ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644; |
| 601 | ; z3 += z5; z4 += z5; |
| 602 | ; |
| 603 | ; (This implementation) |
| 604 | ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602; |
| 605 | ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644); |
| 606 | |
| 607 | movdqa xmm0,xmm5 |
| 608 | movdqa xmm7,xmm5 |
| 609 | punpcklwd xmm0,xmm4 |
| 610 | punpckhwd xmm7,xmm4 |
| 611 | movdqa xmm5,xmm0 |
| 612 | movdqa xmm4,xmm7 |
| 613 | pmaddwd xmm0,[PW_MF078_F117] ; xmm0=z3L |
| 614 | pmaddwd xmm7,[PW_MF078_F117] ; xmm7=z3H |
| 615 | pmaddwd xmm5,[PW_F117_F078] ; xmm5=z4L |
| 616 | pmaddwd xmm4,[PW_F117_F078] ; xmm4=z4H |
| 617 | |
| 618 | movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=z3L |
| 619 | movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=z3H |
| 620 | |
| 621 | ; (Original) |
| 622 | ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2; |
| 623 | ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869; |
| 624 | ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110; |
| 625 | ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447; |
| 626 | ; tmp0 += z1 + z3; tmp1 += z2 + z4; |
| 627 | ; tmp2 += z2 + z3; tmp3 += z1 + z4; |
| 628 | ; |
| 629 | ; (This implementation) |
| 630 | ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223; |
| 631 | ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447; |
| 632 | ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447); |
| 633 | ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223); |
| 634 | ; tmp0 += z3; tmp1 += z4; |
| 635 | ; tmp2 += z3; tmp3 += z4; |
| 636 | |
| 637 | movdqa xmm0,xmm1 |
| 638 | movdqa xmm7,xmm1 |
| 639 | punpcklwd xmm0,xmm3 |
| 640 | punpckhwd xmm7,xmm3 |
| 641 | movdqa xmm1,xmm0 |
| 642 | movdqa xmm3,xmm7 |
| 643 | pmaddwd xmm0,[PW_MF060_MF089] ; xmm0=tmp0L |
| 644 | pmaddwd xmm7,[PW_MF060_MF089] ; xmm7=tmp0H |
| 645 | pmaddwd xmm1,[PW_MF089_F060] ; xmm1=tmp3L |
| 646 | pmaddwd xmm3,[PW_MF089_F060] ; xmm3=tmp3H |
| 647 | |
| 648 | paddd xmm0, XMMWORD [wk(10)] ; xmm0=tmp0L |
| 649 | paddd xmm7, XMMWORD [wk(11)] ; xmm7=tmp0H |
| 650 | paddd xmm1,xmm5 ; xmm1=tmp3L |
| 651 | paddd xmm3,xmm4 ; xmm3=tmp3H |
| 652 | |
| 653 | movdqa XMMWORD [wk(8)], xmm0 ; wk(8)=tmp0L |
| 654 | movdqa XMMWORD [wk(9)], xmm7 ; wk(9)=tmp0H |
| 655 | |
| 656 | movdqa xmm0,xmm2 |
| 657 | movdqa xmm7,xmm2 |
| 658 | punpcklwd xmm0,xmm6 |
| 659 | punpckhwd xmm7,xmm6 |
| 660 | movdqa xmm2,xmm0 |
| 661 | movdqa xmm6,xmm7 |
| 662 | pmaddwd xmm0,[PW_MF050_MF256] ; xmm0=tmp1L |
| 663 | pmaddwd xmm7,[PW_MF050_MF256] ; xmm7=tmp1H |
| 664 | pmaddwd xmm2,[PW_MF256_F050] ; xmm2=tmp2L |
| 665 | pmaddwd xmm6,[PW_MF256_F050] ; xmm6=tmp2H |
| 666 | |
| 667 | paddd xmm0,xmm5 ; xmm0=tmp1L |
| 668 | paddd xmm7,xmm4 ; xmm7=tmp1H |
| 669 | paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp2L |
| 670 | paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H |
| 671 | |
| 672 | movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=tmp1L |
| 673 | movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=tmp1H |
| 674 | |
| 675 | ; -- Final output stage |
| 676 | |
| 677 | movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L |
| 678 | movdqa xmm4, XMMWORD [wk(1)] ; xmm4=tmp10H |
| 679 | |
| 680 | movdqa xmm0,xmm5 |
| 681 | movdqa xmm7,xmm4 |
| 682 | paddd xmm5,xmm1 ; xmm5=data0L |
| 683 | paddd xmm4,xmm3 ; xmm4=data0H |
| 684 | psubd xmm0,xmm1 ; xmm0=data7L |
| 685 | psubd xmm7,xmm3 ; xmm7=data7H |
| 686 | |
| 687 | movdqa xmm1,[PD_DESCALE_P2] ; xmm1=[PD_DESCALE_P2] |
| 688 | |
| 689 | paddd xmm5,xmm1 |
| 690 | paddd xmm4,xmm1 |
| 691 | psrad xmm5,DESCALE_P2 |
| 692 | psrad xmm4,DESCALE_P2 |
| 693 | paddd xmm0,xmm1 |
| 694 | paddd xmm7,xmm1 |
| 695 | psrad xmm0,DESCALE_P2 |
| 696 | psrad xmm7,DESCALE_P2 |
| 697 | |
| 698 | packssdw xmm5,xmm4 ; xmm5=data0=(00 10 20 30 40 50 60 70) |
| 699 | packssdw xmm0,xmm7 ; xmm0=data7=(07 17 27 37 47 57 67 77) |
| 700 | |
| 701 | movdqa xmm3, XMMWORD [wk(4)] ; xmm3=tmp11L |
| 702 | movdqa xmm1, XMMWORD [wk(5)] ; xmm1=tmp11H |
| 703 | |
| 704 | movdqa xmm4,xmm3 |
| 705 | movdqa xmm7,xmm1 |
| 706 | paddd xmm3,xmm2 ; xmm3=data1L |
| 707 | paddd xmm1,xmm6 ; xmm1=data1H |
| 708 | psubd xmm4,xmm2 ; xmm4=data6L |
| 709 | psubd xmm7,xmm6 ; xmm7=data6H |
| 710 | |
| 711 | movdqa xmm2,[PD_DESCALE_P2] ; xmm2=[PD_DESCALE_P2] |
| 712 | |
| 713 | paddd xmm3,xmm2 |
| 714 | paddd xmm1,xmm2 |
| 715 | psrad xmm3,DESCALE_P2 |
| 716 | psrad xmm1,DESCALE_P2 |
| 717 | paddd xmm4,xmm2 |
| 718 | paddd xmm7,xmm2 |
| 719 | psrad xmm4,DESCALE_P2 |
| 720 | psrad xmm7,DESCALE_P2 |
| 721 | |
| 722 | packssdw xmm3,xmm1 ; xmm3=data1=(01 11 21 31 41 51 61 71) |
| 723 | packssdw xmm4,xmm7 ; xmm4=data6=(06 16 26 36 46 56 66 76) |
| 724 | |
| 725 | packsswb xmm5,xmm4 ; xmm5=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76) |
| 726 | packsswb xmm3,xmm0 ; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77) |
| 727 | |
| 728 | movdqa xmm6, XMMWORD [wk(6)] ; xmm6=tmp12L |
| 729 | movdqa xmm2, XMMWORD [wk(7)] ; xmm2=tmp12H |
| 730 | movdqa xmm1, XMMWORD [wk(10)] ; xmm1=tmp1L |
| 731 | movdqa xmm7, XMMWORD [wk(11)] ; xmm7=tmp1H |
| 732 | |
| 733 | movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76) |
| 734 | movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77) |
| 735 | |
| 736 | movdqa xmm4,xmm6 |
| 737 | movdqa xmm0,xmm2 |
| 738 | paddd xmm6,xmm1 ; xmm6=data2L |
| 739 | paddd xmm2,xmm7 ; xmm2=data2H |
| 740 | psubd xmm4,xmm1 ; xmm4=data5L |
| 741 | psubd xmm0,xmm7 ; xmm0=data5H |
| 742 | |
| 743 | movdqa xmm5,[PD_DESCALE_P2] ; xmm5=[PD_DESCALE_P2] |
| 744 | |
| 745 | paddd xmm6,xmm5 |
| 746 | paddd xmm2,xmm5 |
| 747 | psrad xmm6,DESCALE_P2 |
| 748 | psrad xmm2,DESCALE_P2 |
| 749 | paddd xmm4,xmm5 |
| 750 | paddd xmm0,xmm5 |
| 751 | psrad xmm4,DESCALE_P2 |
| 752 | psrad xmm0,DESCALE_P2 |
| 753 | |
| 754 | packssdw xmm6,xmm2 ; xmm6=data2=(02 12 22 32 42 52 62 72) |
| 755 | packssdw xmm4,xmm0 ; xmm4=data5=(05 15 25 35 45 55 65 75) |
| 756 | |
| 757 | movdqa xmm3, XMMWORD [wk(2)] ; xmm3=tmp13L |
| 758 | movdqa xmm1, XMMWORD [wk(3)] ; xmm1=tmp13H |
| 759 | movdqa xmm7, XMMWORD [wk(8)] ; xmm7=tmp0L |
| 760 | movdqa xmm5, XMMWORD [wk(9)] ; xmm5=tmp0H |
| 761 | |
| 762 | movdqa xmm2,xmm3 |
| 763 | movdqa xmm0,xmm1 |
| 764 | paddd xmm3,xmm7 ; xmm3=data3L |
| 765 | paddd xmm1,xmm5 ; xmm1=data3H |
| 766 | psubd xmm2,xmm7 ; xmm2=data4L |
| 767 | psubd xmm0,xmm5 ; xmm0=data4H |
| 768 | |
| 769 | movdqa xmm7,[PD_DESCALE_P2] ; xmm7=[PD_DESCALE_P2] |
| 770 | |
| 771 | paddd xmm3,xmm7 |
| 772 | paddd xmm1,xmm7 |
| 773 | psrad xmm3,DESCALE_P2 |
| 774 | psrad xmm1,DESCALE_P2 |
| 775 | paddd xmm2,xmm7 |
| 776 | paddd xmm0,xmm7 |
| 777 | psrad xmm2,DESCALE_P2 |
| 778 | psrad xmm0,DESCALE_P2 |
| 779 | |
| 780 | movdqa xmm5,[PB_CENTERJSAMP] ; xmm5=[PB_CENTERJSAMP] |
| 781 | |
| 782 | packssdw xmm3,xmm1 ; xmm3=data3=(03 13 23 33 43 53 63 73) |
| 783 | packssdw xmm2,xmm0 ; xmm2=data4=(04 14 24 34 44 54 64 74) |
| 784 | |
| 785 | movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76) |
| 786 | movdqa xmm1, XMMWORD [wk(1)] ; xmm1=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77) |
| 787 | |
| 788 | packsswb xmm6,xmm2 ; xmm6=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74) |
| 789 | packsswb xmm3,xmm4 ; xmm3=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75) |
| 790 | |
| 791 | paddb xmm7,xmm5 |
| 792 | paddb xmm1,xmm5 |
| 793 | paddb xmm6,xmm5 |
| 794 | paddb xmm3,xmm5 |
| 795 | |
| 796 | movdqa xmm0,xmm7 ; transpose coefficients(phase 1) |
| 797 | punpcklbw xmm7,xmm1 ; xmm7=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71) |
| 798 | punpckhbw xmm0,xmm1 ; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77) |
| 799 | movdqa xmm2,xmm6 ; transpose coefficients(phase 1) |
| 800 | punpcklbw xmm6,xmm3 ; xmm6=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73) |
| 801 | punpckhbw xmm2,xmm3 ; xmm2=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75) |
| 802 | |
| 803 | movdqa xmm4,xmm7 ; transpose coefficients(phase 2) |
| 804 | punpcklwd xmm7,xmm6 ; xmm7=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33) |
| 805 | punpckhwd xmm4,xmm6 ; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73) |
| 806 | movdqa xmm5,xmm2 ; transpose coefficients(phase 2) |
| 807 | punpcklwd xmm2,xmm0 ; xmm2=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37) |
| 808 | punpckhwd xmm5,xmm0 ; xmm5=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77) |
| 809 | |
| 810 | movdqa xmm1,xmm7 ; transpose coefficients(phase 3) |
| 811 | punpckldq xmm7,xmm2 ; xmm7=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17) |
| 812 | punpckhdq xmm1,xmm2 ; xmm1=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37) |
| 813 | movdqa xmm3,xmm4 ; transpose coefficients(phase 3) |
| 814 | punpckldq xmm4,xmm5 ; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57) |
| 815 | punpckhdq xmm3,xmm5 ; xmm3=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77) |
| 816 | |
| 817 | pshufd xmm6,xmm7,0x4E ; xmm6=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07) |
| 818 | pshufd xmm0,xmm1,0x4E ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27) |
| 819 | pshufd xmm2,xmm4,0x4E ; xmm2=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47) |
| 820 | pshufd xmm5,xmm3,0x4E ; xmm5=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67) |
| 821 | |
| 822 | mov rdx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] |
| 823 | mov rsi, JSAMPROW [rdi+2*SIZEOF_JSAMPROW] |
| 824 | movq XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm7 |
| 825 | movq XMM_MMWORD [rsi+rax*SIZEOF_JSAMPLE], xmm1 |
| 826 | mov rdx, JSAMPROW [rdi+4*SIZEOF_JSAMPROW] |
| 827 | mov rsi, JSAMPROW [rdi+6*SIZEOF_JSAMPROW] |
| 828 | movq XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm4 |
| 829 | movq XMM_MMWORD [rsi+rax*SIZEOF_JSAMPLE], xmm3 |
| 830 | |
| 831 | mov rdx, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] |
| 832 | mov rsi, JSAMPROW [rdi+3*SIZEOF_JSAMPROW] |
| 833 | movq XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm6 |
| 834 | movq XMM_MMWORD [rsi+rax*SIZEOF_JSAMPLE], xmm0 |
| 835 | mov rdx, JSAMPROW [rdi+5*SIZEOF_JSAMPROW] |
| 836 | mov rsi, JSAMPROW [rdi+7*SIZEOF_JSAMPROW] |
| 837 | movq XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE], xmm2 |
| 838 | movq XMM_MMWORD [rsi+rax*SIZEOF_JSAMPLE], xmm5 |
| 839 | |
| 840 | uncollect_args |
| 841 | mov rsp,rbp ; rsp <- aligned rbp |
| 842 | pop rsp ; rsp <- original rbp |
| 843 | pop rbp |
| 844 | ret |