1/* 2 * The simplest mpeg encoder (well, it was the simplest!) 3 * Copyright (c) 2000,2001 Fabrice Bellard 4 * 5 * Optimized for ia32 CPUs by Nick Kurshev <nickols_k@mail.ru> 6 * h263, mpeg1, mpeg2 dequantizer & draw_edges by Michael Niedermayer <michaelni@gmx.at> 7 * 8 * This file is part of Libav. 9 * 10 * Libav is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU Lesser General Public 12 * License as published by the Free Software Foundation; either 13 * version 2.1 of the License, or (at your option) any later version. 14 * 15 * Libav is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * Lesser General Public License for more details. 19 * 20 * You should have received a copy of the GNU Lesser General Public 21 * License along with Libav; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 23 */ 24 25#include "libavutil/cpu.h" 26#include "libavutil/x86_cpu.h" 27#include "libavcodec/avcodec.h" 28#include "libavcodec/dsputil.h" 29#include "libavcodec/mpegvideo.h" 30#include "dsputil_mmx.h" 31 32extern uint16_t inv_zigzag_direct16[64]; 33 34 35static void dct_unquantize_h263_intra_mmx(MpegEncContext *s, 36 DCTELEM *block, int n, int qscale) 37{ 38 x86_reg level, qmul, qadd, nCoeffs; 39 40 qmul = qscale << 1; 41 42 assert(s->block_last_index[n]>=0 || s->h263_aic); 43 44 if (!s->h263_aic) { 45 if (n < 4) 46 level = block[0] * s->y_dc_scale; 47 else 48 level = block[0] * s->c_dc_scale; 49 qadd = (qscale - 1) | 1; 50 }else{ 51 qadd = 0; 52 level= block[0]; 53 } 54 if(s->ac_pred) 55 nCoeffs=63; 56 else 57 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; 58//printf("%d %d ", qmul, qadd); 59__asm__ volatile( 60 "movd %1, %%mm6 \n\t" //qmul 61 "packssdw %%mm6, %%mm6 \n\t" 62 "packssdw %%mm6, %%mm6 \n\t" 63 "movd %2, %%mm5 \n\t" //qadd 64 "pxor %%mm7, %%mm7 \n\t" 65 "packssdw %%mm5, %%mm5 \n\t" 66 "packssdw %%mm5, %%mm5 \n\t" 67 "psubw %%mm5, %%mm7 \n\t" 68 "pxor %%mm4, %%mm4 \n\t" 69 ".p2align 4 \n\t" 70 "1: \n\t" 71 "movq (%0, %3), %%mm0 \n\t" 72 "movq 8(%0, %3), %%mm1 \n\t" 73 74 "pmullw %%mm6, %%mm0 \n\t" 75 "pmullw %%mm6, %%mm1 \n\t" 76 77 "movq (%0, %3), %%mm2 \n\t" 78 "movq 8(%0, %3), %%mm3 \n\t" 79 80 "pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 81 "pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 82 83 "pxor %%mm2, %%mm0 \n\t" 84 "pxor %%mm3, %%mm1 \n\t" 85 86 "paddw %%mm7, %%mm0 \n\t" 87 "paddw %%mm7, %%mm1 \n\t" 88 89 "pxor %%mm0, %%mm2 \n\t" 90 "pxor %%mm1, %%mm3 \n\t" 91 92 "pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 93 "pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 94 95 "pandn %%mm2, %%mm0 \n\t" 96 "pandn %%mm3, %%mm1 \n\t" 97 98 "movq %%mm0, (%0, %3) \n\t" 99 "movq %%mm1, 8(%0, %3) \n\t" 100 101 "add $16, %3 \n\t" 102 "jng 1b \n\t" 103 ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs)) 104 : "memory" 105 ); 106 block[0]= level; 107} 108 109 110static void dct_unquantize_h263_inter_mmx(MpegEncContext *s, 111 DCTELEM *block, int n, int qscale) 112{ 113 x86_reg qmul, qadd, nCoeffs; 114 115 qmul = qscale << 1; 116 qadd = (qscale - 1) | 1; 117 118 assert(s->block_last_index[n]>=0 || s->h263_aic); 119 120 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; 121//printf("%d %d ", qmul, qadd); 122__asm__ volatile( 123 "movd %1, %%mm6 \n\t" //qmul 124 "packssdw %%mm6, %%mm6 \n\t" 125 "packssdw %%mm6, %%mm6 \n\t" 126 "movd %2, %%mm5 \n\t" //qadd 127 "pxor %%mm7, %%mm7 \n\t" 128 "packssdw %%mm5, %%mm5 \n\t" 129 "packssdw %%mm5, %%mm5 \n\t" 130 "psubw %%mm5, %%mm7 \n\t" 131 "pxor %%mm4, %%mm4 \n\t" 132 ".p2align 4 \n\t" 133 "1: \n\t" 134 "movq (%0, %3), %%mm0 \n\t" 135 "movq 8(%0, %3), %%mm1 \n\t" 136 137 "pmullw %%mm6, %%mm0 \n\t" 138 "pmullw %%mm6, %%mm1 \n\t" 139 140 "movq (%0, %3), %%mm2 \n\t" 141 "movq 8(%0, %3), %%mm3 \n\t" 142 143 "pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 144 "pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 145 146 "pxor %%mm2, %%mm0 \n\t" 147 "pxor %%mm3, %%mm1 \n\t" 148 149 "paddw %%mm7, %%mm0 \n\t" 150 "paddw %%mm7, %%mm1 \n\t" 151 152 "pxor %%mm0, %%mm2 \n\t" 153 "pxor %%mm1, %%mm3 \n\t" 154 155 "pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 156 "pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 157 158 "pandn %%mm2, %%mm0 \n\t" 159 "pandn %%mm3, %%mm1 \n\t" 160 161 "movq %%mm0, (%0, %3) \n\t" 162 "movq %%mm1, 8(%0, %3) \n\t" 163 164 "add $16, %3 \n\t" 165 "jng 1b \n\t" 166 ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs)) 167 : "memory" 168 ); 169} 170 171 172/* 173 NK: 174 Note: looking at PARANOID: 175 "enable all paranoid tests for rounding, overflows, etc..." 176 177#ifdef PARANOID 178 if (level < -2048 || level > 2047) 179 fprintf(stderr, "unquant error %d %d\n", i, level); 180#endif 181 We can suppose that result of two multiplications can't be greater than 0xFFFF 182 i.e. is 16-bit, so we use here only PMULLW instruction and can avoid 183 a complex multiplication. 184===================================================== 185 Full formula for multiplication of 2 integer numbers 186 which are represent as high:low words: 187 input: value1 = high1:low1 188 value2 = high2:low2 189 output: value3 = value1*value2 190 value3=high3:low3 (on overflow: modulus 2^32 wrap-around) 191 this mean that for 0x123456 * 0x123456 correct result is 0x766cb0ce4 192 but this algorithm will compute only 0x66cb0ce4 193 this limited by 16-bit size of operands 194 --------------------------------- 195 tlow1 = high1*low2 196 tlow2 = high2*low1 197 tlow1 = tlow1 + tlow2 198 high3:low3 = low1*low2 199 high3 += tlow1 200*/ 201static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s, 202 DCTELEM *block, int n, int qscale) 203{ 204 x86_reg nCoeffs; 205 const uint16_t *quant_matrix; 206 int block0; 207 208 assert(s->block_last_index[n]>=0); 209 210 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1; 211 212 if (n < 4) 213 block0 = block[0] * s->y_dc_scale; 214 else 215 block0 = block[0] * s->c_dc_scale; 216 /* XXX: only mpeg1 */ 217 quant_matrix = s->intra_matrix; 218__asm__ volatile( 219 "pcmpeqw %%mm7, %%mm7 \n\t" 220 "psrlw $15, %%mm7 \n\t" 221 "movd %2, %%mm6 \n\t" 222 "packssdw %%mm6, %%mm6 \n\t" 223 "packssdw %%mm6, %%mm6 \n\t" 224 "mov %3, %%"REG_a" \n\t" 225 ".p2align 4 \n\t" 226 "1: \n\t" 227 "movq (%0, %%"REG_a"), %%mm0 \n\t" 228 "movq 8(%0, %%"REG_a"), %%mm1 \n\t" 229 "movq (%1, %%"REG_a"), %%mm4 \n\t" 230 "movq 8(%1, %%"REG_a"), %%mm5 \n\t" 231 "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] 232 "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] 233 "pxor %%mm2, %%mm2 \n\t" 234 "pxor %%mm3, %%mm3 \n\t" 235 "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 236 "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 237 "pxor %%mm2, %%mm0 \n\t" 238 "pxor %%mm3, %%mm1 \n\t" 239 "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) 240 "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) 241 "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q 242 "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q 243 "pxor %%mm4, %%mm4 \n\t" 244 "pxor %%mm5, %%mm5 \n\t" // FIXME slow 245 "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 246 "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 247 "psraw $3, %%mm0 \n\t" 248 "psraw $3, %%mm1 \n\t" 249 "psubw %%mm7, %%mm0 \n\t" 250 "psubw %%mm7, %%mm1 \n\t" 251 "por %%mm7, %%mm0 \n\t" 252 "por %%mm7, %%mm1 \n\t" 253 "pxor %%mm2, %%mm0 \n\t" 254 "pxor %%mm3, %%mm1 \n\t" 255 "psubw %%mm2, %%mm0 \n\t" 256 "psubw %%mm3, %%mm1 \n\t" 257 "pandn %%mm0, %%mm4 \n\t" 258 "pandn %%mm1, %%mm5 \n\t" 259 "movq %%mm4, (%0, %%"REG_a") \n\t" 260 "movq %%mm5, 8(%0, %%"REG_a") \n\t" 261 262 "add $16, %%"REG_a" \n\t" 263 "js 1b \n\t" 264 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) 265 : "%"REG_a, "memory" 266 ); 267 block[0]= block0; 268} 269 270static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s, 271 DCTELEM *block, int n, int qscale) 272{ 273 x86_reg nCoeffs; 274 const uint16_t *quant_matrix; 275 276 assert(s->block_last_index[n]>=0); 277 278 nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1; 279 280 quant_matrix = s->inter_matrix; 281__asm__ volatile( 282 "pcmpeqw %%mm7, %%mm7 \n\t" 283 "psrlw $15, %%mm7 \n\t" 284 "movd %2, %%mm6 \n\t" 285 "packssdw %%mm6, %%mm6 \n\t" 286 "packssdw %%mm6, %%mm6 \n\t" 287 "mov %3, %%"REG_a" \n\t" 288 ".p2align 4 \n\t" 289 "1: \n\t" 290 "movq (%0, %%"REG_a"), %%mm0 \n\t" 291 "movq 8(%0, %%"REG_a"), %%mm1 \n\t" 292 "movq (%1, %%"REG_a"), %%mm4 \n\t" 293 "movq 8(%1, %%"REG_a"), %%mm5 \n\t" 294 "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] 295 "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] 296 "pxor %%mm2, %%mm2 \n\t" 297 "pxor %%mm3, %%mm3 \n\t" 298 "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 299 "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 300 "pxor %%mm2, %%mm0 \n\t" 301 "pxor %%mm3, %%mm1 \n\t" 302 "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) 303 "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) 304 "paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2 305 "paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2 306 "paddw %%mm7, %%mm0 \n\t" // abs(block[i])*2 + 1 307 "paddw %%mm7, %%mm1 \n\t" // abs(block[i])*2 + 1 308 "pmullw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q 309 "pmullw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q 310 "pxor %%mm4, %%mm4 \n\t" 311 "pxor %%mm5, %%mm5 \n\t" // FIXME slow 312 "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 313 "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 314 "psraw $4, %%mm0 \n\t" 315 "psraw $4, %%mm1 \n\t" 316 "psubw %%mm7, %%mm0 \n\t" 317 "psubw %%mm7, %%mm1 \n\t" 318 "por %%mm7, %%mm0 \n\t" 319 "por %%mm7, %%mm1 \n\t" 320 "pxor %%mm2, %%mm0 \n\t" 321 "pxor %%mm3, %%mm1 \n\t" 322 "psubw %%mm2, %%mm0 \n\t" 323 "psubw %%mm3, %%mm1 \n\t" 324 "pandn %%mm0, %%mm4 \n\t" 325 "pandn %%mm1, %%mm5 \n\t" 326 "movq %%mm4, (%0, %%"REG_a") \n\t" 327 "movq %%mm5, 8(%0, %%"REG_a") \n\t" 328 329 "add $16, %%"REG_a" \n\t" 330 "js 1b \n\t" 331 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) 332 : "%"REG_a, "memory" 333 ); 334} 335 336static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s, 337 DCTELEM *block, int n, int qscale) 338{ 339 x86_reg nCoeffs; 340 const uint16_t *quant_matrix; 341 int block0; 342 343 assert(s->block_last_index[n]>=0); 344 345 if(s->alternate_scan) nCoeffs= 63; //FIXME 346 else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; 347 348 if (n < 4) 349 block0 = block[0] * s->y_dc_scale; 350 else 351 block0 = block[0] * s->c_dc_scale; 352 quant_matrix = s->intra_matrix; 353__asm__ volatile( 354 "pcmpeqw %%mm7, %%mm7 \n\t" 355 "psrlw $15, %%mm7 \n\t" 356 "movd %2, %%mm6 \n\t" 357 "packssdw %%mm6, %%mm6 \n\t" 358 "packssdw %%mm6, %%mm6 \n\t" 359 "mov %3, %%"REG_a" \n\t" 360 ".p2align 4 \n\t" 361 "1: \n\t" 362 "movq (%0, %%"REG_a"), %%mm0 \n\t" 363 "movq 8(%0, %%"REG_a"), %%mm1 \n\t" 364 "movq (%1, %%"REG_a"), %%mm4 \n\t" 365 "movq 8(%1, %%"REG_a"), %%mm5 \n\t" 366 "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] 367 "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] 368 "pxor %%mm2, %%mm2 \n\t" 369 "pxor %%mm3, %%mm3 \n\t" 370 "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 371 "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 372 "pxor %%mm2, %%mm0 \n\t" 373 "pxor %%mm3, %%mm1 \n\t" 374 "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) 375 "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) 376 "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q 377 "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q 378 "pxor %%mm4, %%mm4 \n\t" 379 "pxor %%mm5, %%mm5 \n\t" // FIXME slow 380 "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 381 "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 382 "psraw $3, %%mm0 \n\t" 383 "psraw $3, %%mm1 \n\t" 384 "pxor %%mm2, %%mm0 \n\t" 385 "pxor %%mm3, %%mm1 \n\t" 386 "psubw %%mm2, %%mm0 \n\t" 387 "psubw %%mm3, %%mm1 \n\t" 388 "pandn %%mm0, %%mm4 \n\t" 389 "pandn %%mm1, %%mm5 \n\t" 390 "movq %%mm4, (%0, %%"REG_a") \n\t" 391 "movq %%mm5, 8(%0, %%"REG_a") \n\t" 392 393 "add $16, %%"REG_a" \n\t" 394 "jng 1b \n\t" 395 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) 396 : "%"REG_a, "memory" 397 ); 398 block[0]= block0; 399 //Note, we do not do mismatch control for intra as errors cannot accumulate 400} 401 402static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s, 403 DCTELEM *block, int n, int qscale) 404{ 405 x86_reg nCoeffs; 406 const uint16_t *quant_matrix; 407 408 assert(s->block_last_index[n]>=0); 409 410 if(s->alternate_scan) nCoeffs= 63; //FIXME 411 else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; 412 413 quant_matrix = s->inter_matrix; 414__asm__ volatile( 415 "pcmpeqw %%mm7, %%mm7 \n\t" 416 "psrlq $48, %%mm7 \n\t" 417 "movd %2, %%mm6 \n\t" 418 "packssdw %%mm6, %%mm6 \n\t" 419 "packssdw %%mm6, %%mm6 \n\t" 420 "mov %3, %%"REG_a" \n\t" 421 ".p2align 4 \n\t" 422 "1: \n\t" 423 "movq (%0, %%"REG_a"), %%mm0 \n\t" 424 "movq 8(%0, %%"REG_a"), %%mm1 \n\t" 425 "movq (%1, %%"REG_a"), %%mm4 \n\t" 426 "movq 8(%1, %%"REG_a"), %%mm5 \n\t" 427 "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] 428 "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] 429 "pxor %%mm2, %%mm2 \n\t" 430 "pxor %%mm3, %%mm3 \n\t" 431 "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 432 "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 433 "pxor %%mm2, %%mm0 \n\t" 434 "pxor %%mm3, %%mm1 \n\t" 435 "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) 436 "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) 437 "paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2 438 "paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2 439 "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*2*q 440 "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*2*q 441 "paddw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q 442 "paddw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q 443 "pxor %%mm4, %%mm4 \n\t" 444 "pxor %%mm5, %%mm5 \n\t" // FIXME slow 445 "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 446 "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 447 "psrlw $4, %%mm0 \n\t" 448 "psrlw $4, %%mm1 \n\t" 449 "pxor %%mm2, %%mm0 \n\t" 450 "pxor %%mm3, %%mm1 \n\t" 451 "psubw %%mm2, %%mm0 \n\t" 452 "psubw %%mm3, %%mm1 \n\t" 453 "pandn %%mm0, %%mm4 \n\t" 454 "pandn %%mm1, %%mm5 \n\t" 455 "pxor %%mm4, %%mm7 \n\t" 456 "pxor %%mm5, %%mm7 \n\t" 457 "movq %%mm4, (%0, %%"REG_a") \n\t" 458 "movq %%mm5, 8(%0, %%"REG_a") \n\t" 459 460 "add $16, %%"REG_a" \n\t" 461 "jng 1b \n\t" 462 "movd 124(%0, %3), %%mm0 \n\t" 463 "movq %%mm7, %%mm6 \n\t" 464 "psrlq $32, %%mm7 \n\t" 465 "pxor %%mm6, %%mm7 \n\t" 466 "movq %%mm7, %%mm6 \n\t" 467 "psrlq $16, %%mm7 \n\t" 468 "pxor %%mm6, %%mm7 \n\t" 469 "pslld $31, %%mm7 \n\t" 470 "psrlq $15, %%mm7 \n\t" 471 "pxor %%mm7, %%mm0 \n\t" 472 "movd %%mm0, 124(%0, %3) \n\t" 473 474 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "r" (-2*nCoeffs) 475 : "%"REG_a, "memory" 476 ); 477} 478 479static void denoise_dct_mmx(MpegEncContext *s, DCTELEM *block){ 480 const int intra= s->mb_intra; 481 int *sum= s->dct_error_sum[intra]; 482 uint16_t *offset= s->dct_offset[intra]; 483 484 s->dct_count[intra]++; 485 486 __asm__ volatile( 487 "pxor %%mm7, %%mm7 \n\t" 488 "1: \n\t" 489 "pxor %%mm0, %%mm0 \n\t" 490 "pxor %%mm1, %%mm1 \n\t" 491 "movq (%0), %%mm2 \n\t" 492 "movq 8(%0), %%mm3 \n\t" 493 "pcmpgtw %%mm2, %%mm0 \n\t" 494 "pcmpgtw %%mm3, %%mm1 \n\t" 495 "pxor %%mm0, %%mm2 \n\t" 496 "pxor %%mm1, %%mm3 \n\t" 497 "psubw %%mm0, %%mm2 \n\t" 498 "psubw %%mm1, %%mm3 \n\t" 499 "movq %%mm2, %%mm4 \n\t" 500 "movq %%mm3, %%mm5 \n\t" 501 "psubusw (%2), %%mm2 \n\t" 502 "psubusw 8(%2), %%mm3 \n\t" 503 "pxor %%mm0, %%mm2 \n\t" 504 "pxor %%mm1, %%mm3 \n\t" 505 "psubw %%mm0, %%mm2 \n\t" 506 "psubw %%mm1, %%mm3 \n\t" 507 "movq %%mm2, (%0) \n\t" 508 "movq %%mm3, 8(%0) \n\t" 509 "movq %%mm4, %%mm2 \n\t" 510 "movq %%mm5, %%mm3 \n\t" 511 "punpcklwd %%mm7, %%mm4 \n\t" 512 "punpckhwd %%mm7, %%mm2 \n\t" 513 "punpcklwd %%mm7, %%mm5 \n\t" 514 "punpckhwd %%mm7, %%mm3 \n\t" 515 "paddd (%1), %%mm4 \n\t" 516 "paddd 8(%1), %%mm2 \n\t" 517 "paddd 16(%1), %%mm5 \n\t" 518 "paddd 24(%1), %%mm3 \n\t" 519 "movq %%mm4, (%1) \n\t" 520 "movq %%mm2, 8(%1) \n\t" 521 "movq %%mm5, 16(%1) \n\t" 522 "movq %%mm3, 24(%1) \n\t" 523 "add $16, %0 \n\t" 524 "add $32, %1 \n\t" 525 "add $16, %2 \n\t" 526 "cmp %3, %0 \n\t" 527 " jb 1b \n\t" 528 : "+r" (block), "+r" (sum), "+r" (offset) 529 : "r"(block+64) 530 ); 531} 532 533static void denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){ 534 const int intra= s->mb_intra; 535 int *sum= s->dct_error_sum[intra]; 536 uint16_t *offset= s->dct_offset[intra]; 537 538 s->dct_count[intra]++; 539 540 __asm__ volatile( 541 "pxor %%xmm7, %%xmm7 \n\t" 542 "1: \n\t" 543 "pxor %%xmm0, %%xmm0 \n\t" 544 "pxor %%xmm1, %%xmm1 \n\t" 545 "movdqa (%0), %%xmm2 \n\t" 546 "movdqa 16(%0), %%xmm3 \n\t" 547 "pcmpgtw %%xmm2, %%xmm0 \n\t" 548 "pcmpgtw %%xmm3, %%xmm1 \n\t" 549 "pxor %%xmm0, %%xmm2 \n\t" 550 "pxor %%xmm1, %%xmm3 \n\t" 551 "psubw %%xmm0, %%xmm2 \n\t" 552 "psubw %%xmm1, %%xmm3 \n\t" 553 "movdqa %%xmm2, %%xmm4 \n\t" 554 "movdqa %%xmm3, %%xmm5 \n\t" 555 "psubusw (%2), %%xmm2 \n\t" 556 "psubusw 16(%2), %%xmm3 \n\t" 557 "pxor %%xmm0, %%xmm2 \n\t" 558 "pxor %%xmm1, %%xmm3 \n\t" 559 "psubw %%xmm0, %%xmm2 \n\t" 560 "psubw %%xmm1, %%xmm3 \n\t" 561 "movdqa %%xmm2, (%0) \n\t" 562 "movdqa %%xmm3, 16(%0) \n\t" 563 "movdqa %%xmm4, %%xmm6 \n\t" 564 "movdqa %%xmm5, %%xmm0 \n\t" 565 "punpcklwd %%xmm7, %%xmm4 \n\t" 566 "punpckhwd %%xmm7, %%xmm6 \n\t" 567 "punpcklwd %%xmm7, %%xmm5 \n\t" 568 "punpckhwd %%xmm7, %%xmm0 \n\t" 569 "paddd (%1), %%xmm4 \n\t" 570 "paddd 16(%1), %%xmm6 \n\t" 571 "paddd 32(%1), %%xmm5 \n\t" 572 "paddd 48(%1), %%xmm0 \n\t" 573 "movdqa %%xmm4, (%1) \n\t" 574 "movdqa %%xmm6, 16(%1) \n\t" 575 "movdqa %%xmm5, 32(%1) \n\t" 576 "movdqa %%xmm0, 48(%1) \n\t" 577 "add $32, %0 \n\t" 578 "add $64, %1 \n\t" 579 "add $32, %2 \n\t" 580 "cmp %3, %0 \n\t" 581 " jb 1b \n\t" 582 : "+r" (block), "+r" (sum), "+r" (offset) 583 : "r"(block+64) 584 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3", 585 "%xmm4", "%xmm5", "%xmm6", "%xmm7") 586 ); 587} 588 589#if HAVE_SSSE3 590#define HAVE_SSSE3_BAK 591#endif 592#undef HAVE_SSSE3 593#define HAVE_SSSE3 0 594 595#undef HAVE_SSE2 596#undef HAVE_MMX2 597#define HAVE_SSE2 0 598#define HAVE_MMX2 0 599#define RENAME(a) a ## _MMX 600#define RENAMEl(a) a ## _mmx 601#include "mpegvideo_mmx_template.c" 602 603#undef HAVE_MMX2 604#define HAVE_MMX2 1 605#undef RENAME 606#undef RENAMEl 607#define RENAME(a) a ## _MMX2 608#define RENAMEl(a) a ## _mmx2 609#include "mpegvideo_mmx_template.c" 610 611#undef HAVE_SSE2 612#define HAVE_SSE2 1 613#undef RENAME 614#undef RENAMEl 615#define RENAME(a) a ## _SSE2 616#define RENAMEl(a) a ## _sse2 617#include "mpegvideo_mmx_template.c" 618 619#ifdef HAVE_SSSE3_BAK 620#undef HAVE_SSSE3 621#define HAVE_SSSE3 1 622#undef RENAME 623#undef RENAMEl 624#define RENAME(a) a ## _SSSE3 625#define RENAMEl(a) a ## _sse2 626#include "mpegvideo_mmx_template.c" 627#endif 628 629void MPV_common_init_mmx(MpegEncContext *s) 630{ 631 int mm_flags = av_get_cpu_flags(); 632 633 if (mm_flags & AV_CPU_FLAG_MMX) { 634 const int dct_algo = s->avctx->dct_algo; 635 636 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx; 637 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx; 638 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx; 639 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx; 640 if(!(s->flags & CODEC_FLAG_BITEXACT)) 641 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx; 642 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx; 643 644 if (mm_flags & AV_CPU_FLAG_SSE2) { 645 s->denoise_dct= denoise_dct_sse2; 646 } else { 647 s->denoise_dct= denoise_dct_mmx; 648 } 649 650 if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){ 651#if HAVE_SSSE3 652 if(mm_flags & AV_CPU_FLAG_SSSE3){ 653 s->dct_quantize= dct_quantize_SSSE3; 654 } else 655#endif 656 if(mm_flags & AV_CPU_FLAG_SSE2){ 657 s->dct_quantize= dct_quantize_SSE2; 658 } else if(mm_flags & AV_CPU_FLAG_MMX2){ 659 s->dct_quantize= dct_quantize_MMX2; 660 } else { 661 s->dct_quantize= dct_quantize_MMX; 662 } 663 } 664 } 665} 666