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Revision 1.7 - (view) (download)
| 1 : | edgomez | 1.5 | ;/***************************************************************************** |
| 2 : | Isibaar | 1.1 | ; * |
| 3 : | edgomez | 1.5 | ; * XVID MPEG-4 VIDEO CODEC |
| 4 : | ; * - mmx 8x8 block-based halfpel interpolation - | ||
| 5 : | Isibaar | 1.1 | ; * |
| 6 : | edgomez | 1.5 | ; * Copyright(C) 2002 Michael Militzer <isibaar@xvid.org> |
| 7 : | ; * 2002 Pascal Massimino <skal@planet-d.net> | ||
| 8 : | Isibaar | 1.1 | ; * |
| 9 : | edgomez | 1.5 | ; * This program is free software ; you can redistribute it and/or modify |
| 10 : | ; * it under the terms of the GNU General Public License as published by | ||
| 11 : | ; * the Free Software Foundation ; either version 2 of the License, or | ||
| 12 : | ; * (at your option) any later version. | ||
| 13 : | edgomez | 1.3 | ; * |
| 14 : | edgomez | 1.5 | ; * This program is distributed in the hope that it will be useful, |
| 15 : | ; * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
| 16 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 17 : | ; * GNU General Public License for more details. | ||
| 18 : | Isibaar | 1.1 | ; * |
| 19 : | edgomez | 1.5 | ; * You should have received a copy of the GNU General Public License |
| 20 : | ; * along with this program ; if not, write to the Free Software | ||
| 21 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 22 : | edgomez | 1.4 | ; * |
| 23 : | edgomez | 1.5 | ; ****************************************************************************/ |
| 24 : | edgomez | 1.4 | |
| 25 : | edgomez | 1.5 | BITS 32 |
| 26 : | Isibaar | 1.1 | |
| 27 : | edgomez | 1.5 | %macro cglobal 1 |
| 28 : | Isibaar | 1.1 | %ifdef PREFIX |
| 29 : | edgomez | 1.5 | global _%1 |
| 30 : | Isibaar | 1.1 | %define %1 _%1 |
| 31 : | %else | ||
| 32 : | global %1 | ||
| 33 : | %endif | ||
| 34 : | %endmacro | ||
| 35 : | |||
| 36 : | edgomez | 1.5 | ;============================================================================= |
| 37 : | ; Read only data | ||
| 38 : | ;============================================================================= | ||
| 39 : | |||
| 40 : | %ifdef FORMAT_COFF | ||
| 41 : | edgomez | 1.6 | SECTION .rodata |
| 42 : | edgomez | 1.5 | %else |
| 43 : | edgomez | 1.6 | SECTION .rodata align=16 |
| 44 : | edgomez | 1.5 | %endif |
| 45 : | |||
| 46 : | ALIGN 16 | ||
| 47 : | mmx_one: | ||
| 48 : | times 8 db 1 | ||
| 49 : | Isibaar | 1.1 | |
| 50 : | edgomez | 1.5 | SECTION .text |
| 51 : | Isibaar | 1.1 | |
| 52 : | cglobal interpolate8x8_halfpel_h_xmm | ||
| 53 : | cglobal interpolate8x8_halfpel_v_xmm | ||
| 54 : | cglobal interpolate8x8_halfpel_hv_xmm | ||
| 55 : | |||
| 56 : | edgomez | 1.7 | cglobal interpolate8x8_halfpel_add_xmm |
| 57 : | cglobal interpolate8x8_halfpel_h_add_xmm | ||
| 58 : | cglobal interpolate8x8_halfpel_v_add_xmm | ||
| 59 : | cglobal interpolate8x8_halfpel_hv_add_xmm | ||
| 60 : | |||
| 61 : | Isibaar | 1.1 | ;=========================================================================== |
| 62 : | ; | ||
| 63 : | ; void interpolate8x8_halfpel_h_xmm(uint8_t * const dst, | ||
| 64 : | ; const uint8_t * const src, | ||
| 65 : | ; const uint32_t stride, | ||
| 66 : | ; const uint32_t rounding); | ||
| 67 : | ; | ||
| 68 : | ;=========================================================================== | ||
| 69 : | |||
| 70 : | %macro COPY_H_SSE_RND0 0 | ||
| 71 : | movq mm0, [eax] | ||
| 72 : | pavgb mm0, [eax+1] | ||
| 73 : | movq mm1, [eax+edx] | ||
| 74 : | pavgb mm1, [eax+edx+1] | ||
| 75 : | lea eax,[eax+2*edx] | ||
| 76 : | movq [ecx],mm0 | ||
| 77 : | movq [ecx+edx],mm1 | ||
| 78 : | %endmacro | ||
| 79 : | |||
| 80 : | %macro COPY_H_SSE_RND1 0 | ||
| 81 : | movq mm0, [eax] | ||
| 82 : | movq mm1, [eax+edx] | ||
| 83 : | movq mm4, mm0 | ||
| 84 : | movq mm5, mm1 | ||
| 85 : | edgomez | 1.5 | movq mm2, [eax+1] |
| 86 : | Isibaar | 1.1 | movq mm3, [eax+edx+1] |
| 87 : | pavgb mm0, mm2 | ||
| 88 : | pxor mm2, mm4 | ||
| 89 : | pavgb mm1, mm3 | ||
| 90 : | edgomez | 1.5 | lea eax, [eax+2*edx] |
| 91 : | Isibaar | 1.1 | pxor mm3, mm5 |
| 92 : | pand mm2, mm7 | ||
| 93 : | pand mm3, mm7 | ||
| 94 : | psubb mm0, mm2 | ||
| 95 : | movq [ecx], mm0 | ||
| 96 : | psubb mm1, mm3 | ||
| 97 : | edgomez | 1.5 | movq [ecx+edx], mm1 |
| 98 : | Isibaar | 1.1 | %endmacro |
| 99 : | |||
| 100 : | edgomez | 1.5 | ALIGN 16 |
| 101 : | Isibaar | 1.1 | interpolate8x8_halfpel_h_xmm: |
| 102 : | |||
| 103 : | edgomez | 1.5 | mov eax, [esp+16] ; rounding |
| 104 : | mov ecx, [esp+ 4] ; Dst | ||
| 105 : | Isibaar | 1.1 | test eax,eax |
| 106 : | edgomez | 1.5 | mov eax, [esp+ 8] ; Src |
| 107 : | mov edx, [esp+12] ; stride | ||
| 108 : | Isibaar | 1.1 | |
| 109 : | jnz near .rounding1 | ||
| 110 : | |||
| 111 : | COPY_H_SSE_RND0 | ||
| 112 : | lea ecx,[ecx+2*edx] | ||
| 113 : | COPY_H_SSE_RND0 | ||
| 114 : | lea ecx,[ecx+2*edx] | ||
| 115 : | COPY_H_SSE_RND0 | ||
| 116 : | lea ecx,[ecx+2*edx] | ||
| 117 : | COPY_H_SSE_RND0 | ||
| 118 : | ret | ||
| 119 : | |||
| 120 : | .rounding1 | ||
| 121 : | edgomez | 1.5 | ; we use: (i+j)/2 = ( i+j+1 )/2 - (i^j)&1 |
| 122 : | Isibaar | 1.1 | movq mm7, [mmx_one] |
| 123 : | COPY_H_SSE_RND1 | ||
| 124 : | lea ecx, [ecx+2*edx] | ||
| 125 : | COPY_H_SSE_RND1 | ||
| 126 : | lea ecx,[ecx+2*edx] | ||
| 127 : | COPY_H_SSE_RND1 | ||
| 128 : | lea ecx,[ecx+2*edx] | ||
| 129 : | COPY_H_SSE_RND1 | ||
| 130 : | ret | ||
| 131 : | |||
| 132 : | ;=========================================================================== | ||
| 133 : | ; | ||
| 134 : | ; void interpolate8x8_halfpel_v_xmm(uint8_t * const dst, | ||
| 135 : | edgomez | 1.5 | ; const uint8_t * const src, |
| 136 : | ; const uint32_t stride, | ||
| 137 : | ; const uint32_t rounding); | ||
| 138 : | Isibaar | 1.1 | ; |
| 139 : | ;=========================================================================== | ||
| 140 : | |||
| 141 : | %macro COPY_V_SSE_RND0 0 | ||
| 142 : | edgomez | 1.5 | movq mm0, [eax] |
| 143 : | movq mm1, [eax+edx] | ||
| 144 : | Isibaar | 1.1 | pavgb mm0, mm1 |
| 145 : | pavgb mm1, [eax+2*edx] | ||
| 146 : | edgomez | 1.5 | lea eax, [eax+2*edx] |
| 147 : | movq [ecx], mm0 | ||
| 148 : | Isibaar | 1.1 | movq [ecx+edx],mm1 |
| 149 : | %endmacro | ||
| 150 : | |||
| 151 : | %macro COPY_V_SSE_RND1 0 | ||
| 152 : | movq mm0, mm2 | ||
| 153 : | movq mm1, [eax] | ||
| 154 : | movq mm2, [eax+edx] | ||
| 155 : | lea eax,[eax+2*edx] | ||
| 156 : | movq mm4, mm0 | ||
| 157 : | movq mm5, mm1 | ||
| 158 : | pavgb mm0, mm1 | ||
| 159 : | edgomez | 1.5 | pxor mm4, mm1 |
| 160 : | Isibaar | 1.1 | pavgb mm1, mm2 |
| 161 : | pxor mm5, mm2 | ||
| 162 : | edgomez | 1.5 | pand mm4, mm7 ; lsb's of (i^j)... |
| 163 : | pand mm5, mm7 ; lsb's of (i^j)... | ||
| 164 : | psubb mm0, mm4 ; ...are substracted from result of pavgb | ||
| 165 : | Isibaar | 1.1 | movq [ecx], mm0 |
| 166 : | edgomez | 1.5 | psubb mm1, mm5 ; ...are substracted from result of pavgb |
| 167 : | Isibaar | 1.1 | movq [ecx+edx], mm1 |
| 168 : | %endmacro | ||
| 169 : | |||
| 170 : | edgomez | 1.5 | ALIGN 16 |
| 171 : | Isibaar | 1.1 | interpolate8x8_halfpel_v_xmm: |
| 172 : | |||
| 173 : | mov eax, [esp+16]; rounding | ||
| 174 : | edgomez | 1.5 | mov ecx, [esp+ 4] ; Dst |
| 175 : | Isibaar | 1.1 | test eax,eax |
| 176 : | edgomez | 1.5 | mov eax, [esp+ 8] ; Src |
| 177 : | mov edx, [esp+12] ; stride | ||
| 178 : | Isibaar | 1.1 | |
| 179 : | edgomez | 1.5 | ; we process 2 line at a time |
| 180 : | Isibaar | 1.1 | jnz near .rounding1 |
| 181 : | |||
| 182 : | COPY_V_SSE_RND0 | ||
| 183 : | lea ecx, [ecx+2*edx] | ||
| 184 : | COPY_V_SSE_RND0 | ||
| 185 : | lea ecx, [ecx+2*edx] | ||
| 186 : | COPY_V_SSE_RND0 | ||
| 187 : | lea ecx, [ecx+2*edx] | ||
| 188 : | COPY_V_SSE_RND0 | ||
| 189 : | ret | ||
| 190 : | |||
| 191 : | .rounding1 | ||
| 192 : | edgomez | 1.5 | ; we use: (i+j)/2 = ( i+j+1 )/2 - (i^j)&1 |
| 193 : | Isibaar | 1.1 | movq mm7, [mmx_one] |
| 194 : | edgomez | 1.5 | movq mm2, [eax] ; loop invariant |
| 195 : | Isibaar | 1.1 | add eax, edx |
| 196 : | |||
| 197 : | COPY_V_SSE_RND1 | ||
| 198 : | lea ecx,[ecx+2*edx] | ||
| 199 : | COPY_V_SSE_RND1 | ||
| 200 : | lea ecx,[ecx+2*edx] | ||
| 201 : | COPY_V_SSE_RND1 | ||
| 202 : | lea ecx,[ecx+2*edx] | ||
| 203 : | COPY_V_SSE_RND1 | ||
| 204 : | ret | ||
| 205 : | |||
| 206 : | ;=========================================================================== | ||
| 207 : | ; | ||
| 208 : | ; void interpolate8x8_halfpel_hv_xmm(uint8_t * const dst, | ||
| 209 : | edgomez | 1.5 | ; const uint8_t * const src, |
| 210 : | ; const uint32_t stride, | ||
| 211 : | ; const uint32_t rounding); | ||
| 212 : | Isibaar | 1.1 | ; |
| 213 : | ; | ||
| 214 : | ;=========================================================================== | ||
| 215 : | |||
| 216 : | ; The trick is to correct the result of 'pavgb' with some combination of the | ||
| 217 : | ; lsb's of the 4 input values i,j,k,l, and their intermediate 'pavgb' (s and t). | ||
| 218 : | ; The boolean relations are: | ||
| 219 : | edgomez | 1.5 | ; (i+j+k+l+3)/4 = (s+t+1)/2 - (ij&kl)&st |
| 220 : | Isibaar | 1.1 | ; (i+j+k+l+2)/4 = (s+t+1)/2 - (ij|kl)&st |
| 221 : | ; (i+j+k+l+1)/4 = (s+t+1)/2 - (ij&kl)|st | ||
| 222 : | ; (i+j+k+l+0)/4 = (s+t+1)/2 - (ij|kl)|st | ||
| 223 : | ; with s=(i+j+1)/2, t=(k+l+1)/2, ij = i^j, kl = k^l, st = s^t. | ||
| 224 : | |||
| 225 : | ; Moreover, we process 2 lines at a times, for better overlapping (~15% faster). | ||
| 226 : | |||
| 227 : | %macro COPY_HV_SSE_RND0 0 | ||
| 228 : | edgomez | 1.5 | lea eax, [eax+edx] |
| 229 : | Isibaar | 1.1 | |
| 230 : | edgomez | 1.5 | movq mm0, [eax] |
| 231 : | movq mm1, [eax+1] | ||
| 232 : | Isibaar | 1.1 | |
| 233 : | edgomez | 1.5 | movq mm6, mm0 |
| 234 : | pavgb mm0, mm1 ; mm0=(j+k+1)/2. preserved for next step | ||
| 235 : | lea eax, [eax+edx] | ||
| 236 : | pxor mm1, mm6 ; mm1=(j^k). preserved for next step | ||
| 237 : | Isibaar | 1.1 | |
| 238 : | edgomez | 1.5 | por mm3, mm1 ; ij |= jk |
| 239 : | movq mm6, mm2 | ||
| 240 : | pxor mm6, mm0 ; mm6 = s^t | ||
| 241 : | pand mm3, mm6 ; (ij|jk) &= st | ||
| 242 : | pavgb mm2, mm0 ; mm2 = (s+t+1)/2 | ||
| 243 : | pand mm3, mm7 ; mask lsb | ||
| 244 : | psubb mm2, mm3 ; apply. | ||
| 245 : | |||
| 246 : | movq [ecx], mm2 | ||
| 247 : | Isibaar | 1.1 | |
| 248 : | edgomez | 1.5 | movq mm2, [eax] |
| 249 : | movq mm3, [eax+1] | ||
| 250 : | movq mm6, mm2 | ||
| 251 : | pavgb mm2, mm3 ; preserved for next iteration | ||
| 252 : | lea ecx,[ecx+edx] | ||
| 253 : | pxor mm3, mm6 ; preserved for next iteration | ||
| 254 : | |||
| 255 : | por mm1, mm3 | ||
| 256 : | movq mm6, mm0 | ||
| 257 : | pxor mm6, mm2 | ||
| 258 : | pand mm1, mm6 | ||
| 259 : | pavgb mm0, mm2 | ||
| 260 : | |||
| 261 : | pand mm1, mm7 | ||
| 262 : | psubb mm0, mm1 | ||
| 263 : | |||
| 264 : | movq [ecx], mm0 | ||
| 265 : | Isibaar | 1.1 | %endmacro |
| 266 : | |||
| 267 : | %macro COPY_HV_SSE_RND1 0 | ||
| 268 : | edgomez | 1.5 | lea eax, [eax+edx] |
| 269 : | |||
| 270 : | movq mm0, [eax] | ||
| 271 : | movq mm1, [eax+1] | ||
| 272 : | Isibaar | 1.1 | |
| 273 : | edgomez | 1.5 | movq mm6, mm0 |
| 274 : | pavgb mm0, mm1 ; mm0=(j+k+1)/2. preserved for next step | ||
| 275 : | lea eax, [eax+edx] | ||
| 276 : | pxor mm1, mm6 ; mm1=(j^k). preserved for next step | ||
| 277 : | Isibaar | 1.1 | |
| 278 : | edgomez | 1.5 | pand mm3, mm1 |
| 279 : | movq mm6, mm2 | ||
| 280 : | pxor mm6, mm0 | ||
| 281 : | por mm3, mm6 | ||
| 282 : | pavgb mm2, mm0 | ||
| 283 : | pand mm3, mm7 | ||
| 284 : | psubb mm2, mm3 | ||
| 285 : | |||
| 286 : | movq [ecx], mm2 | ||
| 287 : | Isibaar | 1.1 | |
| 288 : | edgomez | 1.5 | movq mm2, [eax] |
| 289 : | movq mm3, [eax+1] | ||
| 290 : | movq mm6, mm2 | ||
| 291 : | pavgb mm2, mm3 ; preserved for next iteration | ||
| 292 : | lea ecx,[ecx+edx] | ||
| 293 : | pxor mm3, mm6 ; preserved for next iteration | ||
| 294 : | |||
| 295 : | pand mm1, mm3 | ||
| 296 : | movq mm6, mm0 | ||
| 297 : | pxor mm6, mm2 | ||
| 298 : | por mm1, mm6 | ||
| 299 : | pavgb mm0, mm2 | ||
| 300 : | pand mm1, mm7 | ||
| 301 : | psubb mm0, mm1 | ||
| 302 : | |||
| 303 : | movq [ecx], mm0 | ||
| 304 : | Isibaar | 1.1 | %endmacro |
| 305 : | |||
| 306 : | edgomez | 1.5 | ALIGN 16 |
| 307 : | Isibaar | 1.1 | interpolate8x8_halfpel_hv_xmm: |
| 308 : | edgomez | 1.5 | mov eax, [esp+16] ; rounding |
| 309 : | mov ecx, [esp+ 4] ; Dst | ||
| 310 : | test eax, eax | ||
| 311 : | mov eax, [esp+ 8] ; Src | ||
| 312 : | mov edx, [esp+12] ; stride | ||
| 313 : | Isibaar | 1.1 | |
| 314 : | movq mm7, [mmx_one] | ||
| 315 : | |||
| 316 : | ; loop invariants: mm2=(i+j+1)/2 and mm3= i^j | ||
| 317 : | movq mm2, [eax] | ||
| 318 : | movq mm3, [eax+1] | ||
| 319 : | movq mm6, mm2 | ||
| 320 : | pavgb mm2, mm3 | ||
| 321 : | edgomez | 1.5 | pxor mm3, mm6 ; mm2/mm3 ready |
| 322 : | Isibaar | 1.1 | |
| 323 : | jnz near .rounding1 | ||
| 324 : | |||
| 325 : | COPY_HV_SSE_RND0 | ||
| 326 : | add ecx, edx | ||
| 327 : | COPY_HV_SSE_RND0 | ||
| 328 : | add ecx, edx | ||
| 329 : | COPY_HV_SSE_RND0 | ||
| 330 : | add ecx, edx | ||
| 331 : | COPY_HV_SSE_RND0 | ||
| 332 : | ret | ||
| 333 : | |||
| 334 : | .rounding1 | ||
| 335 : | COPY_HV_SSE_RND1 | ||
| 336 : | add ecx, edx | ||
| 337 : | COPY_HV_SSE_RND1 | ||
| 338 : | add ecx, edx | ||
| 339 : | COPY_HV_SSE_RND1 | ||
| 340 : | add ecx, edx | ||
| 341 : | COPY_HV_SSE_RND1 | ||
| 342 : | edgomez | 1.5 | ret |
| 343 : | edgomez | 1.7 | |
| 344 : | ;=========================================================================== | ||
| 345 : | ; | ||
| 346 : | ; The next functions combine both source halfpel interpolation step and the | ||
| 347 : | ; averaging (with rouding) step to avoid wasting memory bandwidth computing | ||
| 348 : | ; intermediate halfpel images and then averaging them. | ||
| 349 : | ; | ||
| 350 : | ;=========================================================================== | ||
| 351 : | |||
| 352 : | %macro PROLOG0 0 | ||
| 353 : | mov ecx, [esp+ 4] ; Dst | ||
| 354 : | mov eax, [esp+ 8] ; Src | ||
| 355 : | mov edx, [esp+12] ; BpS | ||
| 356 : | %endmacro | ||
| 357 : | %macro PROLOG1 0 | ||
| 358 : | PROLOG0 | ||
| 359 : | test dword [esp+16], 1; Rounding? | ||
| 360 : | %endmacro | ||
| 361 : | %macro EPILOG 0 | ||
| 362 : | ret | ||
| 363 : | %endmacro | ||
| 364 : | |||
| 365 : | ;=========================================================================== | ||
| 366 : | ; | ||
| 367 : | ; void interpolate8x8_halfpel_add_xmm(uint8_t * const dst, | ||
| 368 : | ; const uint8_t * const src, | ||
| 369 : | ; const uint32_t stride, | ||
| 370 : | ; const uint32_t rounding); | ||
| 371 : | ; | ||
| 372 : | ; | ||
| 373 : | ;=========================================================================== | ||
| 374 : | |||
| 375 : | %macro ADD_FF 2 | ||
| 376 : | movq mm0, [eax+%1] | ||
| 377 : | movq mm1, [eax+%2] | ||
| 378 : | ;;--- | ||
| 379 : | ;; movq mm2, mm0 | ||
| 380 : | ;; movq mm3, mm1 | ||
| 381 : | ;;--- | ||
| 382 : | pavgb mm0, [ecx+%1] | ||
| 383 : | pavgb mm1, [ecx+%2] | ||
| 384 : | ;;-- | ||
| 385 : | ;; por mm2, [ecx+%1] | ||
| 386 : | ;; por mm3, [ecx+%2] | ||
| 387 : | ;; pand mm2, [mmx_one] | ||
| 388 : | ;; pand mm3, [mmx_one] | ||
| 389 : | ;; psubsb mm0, mm2 | ||
| 390 : | ;; psubsb mm1, mm3 | ||
| 391 : | ;;-- | ||
| 392 : | movq [ecx+%1], mm0 | ||
| 393 : | movq [ecx+%2], mm1 | ||
| 394 : | %endmacro | ||
| 395 : | |||
| 396 : | ALIGN 16 | ||
| 397 : | interpolate8x8_halfpel_add_xmm: ; 23c | ||
| 398 : | PROLOG1 | ||
| 399 : | ADD_FF 0, edx | ||
| 400 : | lea eax,[eax+2*edx] | ||
| 401 : | lea ecx,[ecx+2*edx] | ||
| 402 : | ADD_FF 0, edx | ||
| 403 : | lea eax,[eax+2*edx] | ||
| 404 : | lea ecx,[ecx+2*edx] | ||
| 405 : | ADD_FF 0, edx | ||
| 406 : | lea eax,[eax+2*edx] | ||
| 407 : | lea ecx,[ecx+2*edx] | ||
| 408 : | ADD_FF 0, edx | ||
| 409 : | EPILOG | ||
| 410 : | |||
| 411 : | ;=========================================================================== | ||
| 412 : | ; | ||
| 413 : | ; void interpolate8x8_halfpel_h_add_xmm(uint8_t * const dst, | ||
| 414 : | ; const uint8_t * const src, | ||
| 415 : | ; const uint32_t stride, | ||
| 416 : | ; const uint32_t rounding); | ||
| 417 : | ; | ||
| 418 : | ; | ||
| 419 : | ;=========================================================================== | ||
| 420 : | |||
| 421 : | |||
| 422 : | %macro ADD_FH_RND0 2 | ||
| 423 : | movq mm0, [eax+%1] | ||
| 424 : | movq mm1, [eax+%2] | ||
| 425 : | pavgb mm0, [eax+%1+1] | ||
| 426 : | pavgb mm1, [eax+%2+1] | ||
| 427 : | pavgb mm0, [ecx+%1] | ||
| 428 : | pavgb mm1, [ecx+%2] | ||
| 429 : | movq [ecx+%1],mm0 | ||
| 430 : | movq [ecx+%2],mm1 | ||
| 431 : | %endmacro | ||
| 432 : | |||
| 433 : | %macro ADD_FH_RND1 2 | ||
| 434 : | movq mm0, [eax+%1] | ||
| 435 : | movq mm1, [eax+%2] | ||
| 436 : | movq mm4, mm0 | ||
| 437 : | movq mm5, mm1 | ||
| 438 : | movq mm2, [eax+%1+1] | ||
| 439 : | movq mm3, [eax+%2+1] | ||
| 440 : | pavgb mm0, mm2 | ||
| 441 : | ; lea ?? | ||
| 442 : | pxor mm2, mm4 | ||
| 443 : | pavgb mm1, mm3 | ||
| 444 : | pxor mm3, mm5 | ||
| 445 : | pand mm2, [mmx_one] | ||
| 446 : | pand mm3, [mmx_one] | ||
| 447 : | psubb mm0, mm2 | ||
| 448 : | psubb mm1, mm3 | ||
| 449 : | pavgb mm0, [ecx+%1] | ||
| 450 : | pavgb mm1, [ecx+%2] | ||
| 451 : | movq [ecx+%1],mm0 | ||
| 452 : | movq [ecx+%2],mm1 | ||
| 453 : | %endmacro | ||
| 454 : | |||
| 455 : | ALIGN 16 | ||
| 456 : | interpolate8x8_halfpel_h_add_xmm: ; 32c | ||
| 457 : | PROLOG1 | ||
| 458 : | jnz near .Loop1 | ||
| 459 : | ADD_FH_RND0 0, edx | ||
| 460 : | lea eax,[eax+2*edx] | ||
| 461 : | lea ecx,[ecx+2*edx] | ||
| 462 : | ADD_FH_RND0 0, edx | ||
| 463 : | lea eax,[eax+2*edx] | ||
| 464 : | lea ecx,[ecx+2*edx] | ||
| 465 : | ADD_FH_RND0 0, edx | ||
| 466 : | lea eax,[eax+2*edx] | ||
| 467 : | lea ecx,[ecx+2*edx] | ||
| 468 : | ADD_FH_RND0 0, edx | ||
| 469 : | EPILOG | ||
| 470 : | |||
| 471 : | .Loop1 | ||
| 472 : | ; we use: (i+j)/2 = ( i+j+1 )/2 - (i^j)&1 | ||
| 473 : | ; movq mm7, [mmx_one] | ||
| 474 : | ADD_FH_RND1 0, edx | ||
| 475 : | lea eax,[eax+2*edx] | ||
| 476 : | lea ecx,[ecx+2*edx] | ||
| 477 : | ADD_FH_RND1 0, edx | ||
| 478 : | lea eax,[eax+2*edx] | ||
| 479 : | lea ecx,[ecx+2*edx] | ||
| 480 : | ADD_FH_RND1 0, edx | ||
| 481 : | lea eax,[eax+2*edx] | ||
| 482 : | lea ecx,[ecx+2*edx] | ||
| 483 : | ADD_FH_RND1 0, edx | ||
| 484 : | EPILOG | ||
| 485 : | |||
| 486 : | |||
| 487 : | ;=========================================================================== | ||
| 488 : | ; | ||
| 489 : | ; void interpolate8x8_halfpel_v_add_xmm(uint8_t * const dst, | ||
| 490 : | ; const uint8_t * const src, | ||
| 491 : | ; const uint32_t stride, | ||
| 492 : | ; const uint32_t rounding); | ||
| 493 : | ; | ||
| 494 : | ; | ||
| 495 : | ;=========================================================================== | ||
| 496 : | |||
| 497 : | %macro ADD_8_HF_RND0 0 | ||
| 498 : | movq mm0, [eax] | ||
| 499 : | movq mm1, [eax+edx] | ||
| 500 : | pavgb mm0, mm1 | ||
| 501 : | pavgb mm1, [eax+2*edx] | ||
| 502 : | lea eax,[eax+2*edx] | ||
| 503 : | pavgb mm0, [ecx] | ||
| 504 : | pavgb mm1, [ecx+edx] | ||
| 505 : | movq [ecx],mm0 | ||
| 506 : | movq [ecx+edx],mm1 | ||
| 507 : | %endmacro | ||
| 508 : | |||
| 509 : | %macro ADD_8_HF_RND1 0 | ||
| 510 : | movq mm1, [eax+edx] | ||
| 511 : | movq mm2, [eax+2*edx] | ||
| 512 : | lea eax,[eax+2*edx] | ||
| 513 : | movq mm4, mm0 | ||
| 514 : | movq mm5, mm1 | ||
| 515 : | pavgb mm0, mm1 | ||
| 516 : | pxor mm4, mm1 | ||
| 517 : | pavgb mm1, mm2 | ||
| 518 : | pxor mm5, mm2 | ||
| 519 : | pand mm4, mm7 ; lsb's of (i^j)... | ||
| 520 : | pand mm5, mm7 ; lsb's of (i^j)... | ||
| 521 : | psubb mm0, mm4 ; ...are substracted from result of pavgb | ||
| 522 : | pavgb mm0, [ecx] | ||
| 523 : | movq [ecx], mm0 | ||
| 524 : | psubb mm1, mm5 ; ...are substracted from result of pavgb | ||
| 525 : | pavgb mm1, [ecx+edx] | ||
| 526 : | movq [ecx+edx], mm1 | ||
| 527 : | %endmacro | ||
| 528 : | |||
| 529 : | ALIGN 16 | ||
| 530 : | interpolate8x8_halfpel_v_add_xmm: | ||
| 531 : | PROLOG1 | ||
| 532 : | |||
| 533 : | jnz near .Loop1 | ||
| 534 : | pxor mm7, mm7 ; this is a NOP | ||
| 535 : | |||
| 536 : | ADD_8_HF_RND0 | ||
| 537 : | lea ecx,[ecx+2*edx] | ||
| 538 : | ADD_8_HF_RND0 | ||
| 539 : | lea ecx,[ecx+2*edx] | ||
| 540 : | ADD_8_HF_RND0 | ||
| 541 : | lea ecx,[ecx+2*edx] | ||
| 542 : | ADD_8_HF_RND0 | ||
| 543 : | EPILOG | ||
| 544 : | |||
| 545 : | .Loop1 | ||
| 546 : | movq mm0, [eax] ; loop invariant | ||
| 547 : | movq mm7, [mmx_one] | ||
| 548 : | |||
| 549 : | ADD_8_HF_RND1 | ||
| 550 : | movq mm0, mm2 | ||
| 551 : | lea ecx,[ecx+2*edx] | ||
| 552 : | ADD_8_HF_RND1 | ||
| 553 : | movq mm0, mm2 | ||
| 554 : | lea ecx,[ecx+2*edx] | ||
| 555 : | ADD_8_HF_RND1 | ||
| 556 : | movq mm0, mm2 | ||
| 557 : | lea ecx,[ecx+2*edx] | ||
| 558 : | ADD_8_HF_RND1 | ||
| 559 : | EPILOG | ||
| 560 : | |||
| 561 : | ; The trick is to correct the result of 'pavgb' with some combination of the | ||
| 562 : | ; lsb's of the 4 input values i,j,k,l, and their intermediate 'pavgb' (s and t). | ||
| 563 : | ; The boolean relations are: | ||
| 564 : | ; (i+j+k+l+3)/4 = (s+t+1)/2 - (ij&kl)&st | ||
| 565 : | ; (i+j+k+l+2)/4 = (s+t+1)/2 - (ij|kl)&st | ||
| 566 : | ; (i+j+k+l+1)/4 = (s+t+1)/2 - (ij&kl)|st | ||
| 567 : | ; (i+j+k+l+0)/4 = (s+t+1)/2 - (ij|kl)|st | ||
| 568 : | ; with s=(i+j+1)/2, t=(k+l+1)/2, ij = i^j, kl = k^l, st = s^t. | ||
| 569 : | |||
| 570 : | ; Moreover, we process 2 lines at a times, for better overlapping (~15% faster). | ||
| 571 : | |||
| 572 : | ;=========================================================================== | ||
| 573 : | ; | ||
| 574 : | ; void interpolate8x8_halfpel_hv_add_xmm(uint8_t * const dst, | ||
| 575 : | ; const uint8_t * const src, | ||
| 576 : | ; const uint32_t stride, | ||
| 577 : | ; const uint32_t rounding); | ||
| 578 : | ; | ||
| 579 : | ; | ||
| 580 : | ;=========================================================================== | ||
| 581 : | |||
| 582 : | %macro ADD_HH_RND0 0 | ||
| 583 : | lea eax,[eax+edx] | ||
| 584 : | |||
| 585 : | movq mm0, [eax] | ||
| 586 : | movq mm1, [eax+1] | ||
| 587 : | |||
| 588 : | movq mm6, mm0 | ||
| 589 : | pavgb mm0, mm1 ; mm0=(j+k+1)/2. preserved for next step | ||
| 590 : | lea eax,[eax+edx] | ||
| 591 : | pxor mm1, mm6 ; mm1=(j^k). preserved for next step | ||
| 592 : | |||
| 593 : | por mm3, mm1 ; ij |= jk | ||
| 594 : | movq mm6, mm2 | ||
| 595 : | pxor mm6, mm0 ; mm6 = s^t | ||
| 596 : | pand mm3, mm6 ; (ij|jk) &= st | ||
| 597 : | pavgb mm2, mm0 ; mm2 = (s+t+1)/2 | ||
| 598 : | pand mm3, mm7 ; mask lsb | ||
| 599 : | psubb mm2, mm3 ; apply. | ||
| 600 : | |||
| 601 : | pavgb mm2, [ecx] | ||
| 602 : | movq [ecx], mm2 | ||
| 603 : | |||
| 604 : | movq mm2, [eax] | ||
| 605 : | movq mm3, [eax+1] | ||
| 606 : | movq mm6, mm2 | ||
| 607 : | pavgb mm2, mm3 ; preserved for next iteration | ||
| 608 : | lea ecx,[ecx+edx] | ||
| 609 : | pxor mm3, mm6 ; preserved for next iteration | ||
| 610 : | |||
| 611 : | por mm1, mm3 | ||
| 612 : | movq mm6, mm0 | ||
| 613 : | pxor mm6, mm2 | ||
| 614 : | pand mm1, mm6 | ||
| 615 : | pavgb mm0, mm2 | ||
| 616 : | |||
| 617 : | pand mm1, mm7 | ||
| 618 : | psubb mm0, mm1 | ||
| 619 : | |||
| 620 : | pavgb mm0, [ecx] | ||
| 621 : | movq [ecx], mm0 | ||
| 622 : | %endmacro | ||
| 623 : | |||
| 624 : | %macro ADD_HH_RND1 0 | ||
| 625 : | lea eax,[eax+edx] | ||
| 626 : | |||
| 627 : | movq mm0, [eax] | ||
| 628 : | movq mm1, [eax+1] | ||
| 629 : | |||
| 630 : | movq mm6, mm0 | ||
| 631 : | pavgb mm0, mm1 ; mm0=(j+k+1)/2. preserved for next step | ||
| 632 : | lea eax,[eax+edx] | ||
| 633 : | pxor mm1, mm6 ; mm1=(j^k). preserved for next step | ||
| 634 : | |||
| 635 : | pand mm3, mm1 | ||
| 636 : | movq mm6, mm2 | ||
| 637 : | pxor mm6, mm0 | ||
| 638 : | por mm3, mm6 | ||
| 639 : | pavgb mm2, mm0 | ||
| 640 : | pand mm3, mm7 | ||
| 641 : | psubb mm2, mm3 | ||
| 642 : | |||
| 643 : | pavgb mm2, [ecx] | ||
| 644 : | movq [ecx], mm2 | ||
| 645 : | |||
| 646 : | movq mm2, [eax] | ||
| 647 : | movq mm3, [eax+1] | ||
| 648 : | movq mm6, mm2 | ||
| 649 : | pavgb mm2, mm3 ; preserved for next iteration | ||
| 650 : | lea ecx,[ecx+edx] | ||
| 651 : | pxor mm3, mm6 ; preserved for next iteration | ||
| 652 : | |||
| 653 : | pand mm1, mm3 | ||
| 654 : | movq mm6, mm0 | ||
| 655 : | pxor mm6, mm2 | ||
| 656 : | por mm1, mm6 | ||
| 657 : | pavgb mm0, mm2 | ||
| 658 : | pand mm1, mm7 | ||
| 659 : | psubb mm0, mm1 | ||
| 660 : | |||
| 661 : | pavgb mm0, [ecx] | ||
| 662 : | movq [ecx], mm0 | ||
| 663 : | %endmacro | ||
| 664 : | |||
| 665 : | ALIGN 16 | ||
| 666 : | interpolate8x8_halfpel_hv_add_xmm: | ||
| 667 : | PROLOG1 | ||
| 668 : | |||
| 669 : | movq mm7, [mmx_one] | ||
| 670 : | |||
| 671 : | ; loop invariants: mm2=(i+j+1)/2 and mm3= i^j | ||
| 672 : | movq mm2, [eax] | ||
| 673 : | movq mm3, [eax+1] | ||
| 674 : | movq mm6, mm2 | ||
| 675 : | pavgb mm2, mm3 | ||
| 676 : | pxor mm3, mm6 ; mm2/mm3 ready | ||
| 677 : | |||
| 678 : | jnz near .Loop1 | ||
| 679 : | |||
| 680 : | ADD_HH_RND0 | ||
| 681 : | add ecx, edx | ||
| 682 : | ADD_HH_RND0 | ||
| 683 : | add ecx, edx | ||
| 684 : | ADD_HH_RND0 | ||
| 685 : | add ecx, edx | ||
| 686 : | ADD_HH_RND0 | ||
| 687 : | EPILOG | ||
| 688 : | |||
| 689 : | .Loop1 | ||
| 690 : | ADD_HH_RND1 | ||
| 691 : | add ecx, edx | ||
| 692 : | ADD_HH_RND1 | ||
| 693 : | add ecx, edx | ||
| 694 : | ADD_HH_RND1 | ||
| 695 : | add ecx, edx | ||
| 696 : | ADD_HH_RND1 | ||
| 697 : | |||
| 698 : | EPILOG |
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