| 1 | /* |
| 2 | * Optimized for ia32 CPUs by Nick Kurshev <nickols_k@mail.ru> |
| 3 | * h263, mpeg1, mpeg2 dequantizer & draw_edges by Michael Niedermayer <michaelni@gmx.at> |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | #include "libavutil/attributes.h" |
| 23 | #include "libavutil/cpu.h" |
| 24 | #include "libavutil/x86/asm.h" |
| 25 | #include "libavutil/x86/cpu.h" |
| 26 | #include "libavcodec/avcodec.h" |
| 27 | #include "libavcodec/mpegvideo.h" |
| 28 | |
| 29 | #if HAVE_MMX_INLINE |
| 30 | |
| 31 | static void dct_unquantize_h263_intra_mmx(MpegEncContext *s, |
| 32 | int16_t *block, int n, int qscale) |
| 33 | { |
| 34 | x86_reg level, qmul, qadd, nCoeffs; |
| 35 | |
| 36 | qmul = qscale << 1; |
| 37 | |
| 38 | av_assert2(s->block_last_index[n]>=0 || s->h263_aic); |
| 39 | |
| 40 | if (!s->h263_aic) { |
| 41 | if (n < 4) |
| 42 | level = block[0] * s->y_dc_scale; |
| 43 | else |
| 44 | level = block[0] * s->c_dc_scale; |
| 45 | qadd = (qscale - 1) | 1; |
| 46 | }else{ |
| 47 | qadd = 0; |
| 48 | level= block[0]; |
| 49 | } |
| 50 | if(s->ac_pred) |
| 51 | nCoeffs=63; |
| 52 | else |
| 53 | nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
| 54 | |
| 55 | __asm__ volatile( |
| 56 | "movd %1, %%mm6 \n\t" //qmul |
| 57 | "packssdw %%mm6, %%mm6 \n\t" |
| 58 | "packssdw %%mm6, %%mm6 \n\t" |
| 59 | "movd %2, %%mm5 \n\t" //qadd |
| 60 | "pxor %%mm7, %%mm7 \n\t" |
| 61 | "packssdw %%mm5, %%mm5 \n\t" |
| 62 | "packssdw %%mm5, %%mm5 \n\t" |
| 63 | "psubw %%mm5, %%mm7 \n\t" |
| 64 | "pxor %%mm4, %%mm4 \n\t" |
| 65 | ".p2align 4 \n\t" |
| 66 | "1: \n\t" |
| 67 | "movq (%0, %3), %%mm0 \n\t" |
| 68 | "movq 8(%0, %3), %%mm1 \n\t" |
| 69 | |
| 70 | "pmullw %%mm6, %%mm0 \n\t" |
| 71 | "pmullw %%mm6, %%mm1 \n\t" |
| 72 | |
| 73 | "movq (%0, %3), %%mm2 \n\t" |
| 74 | "movq 8(%0, %3), %%mm3 \n\t" |
| 75 | |
| 76 | "pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
| 77 | "pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
| 78 | |
| 79 | "pxor %%mm2, %%mm0 \n\t" |
| 80 | "pxor %%mm3, %%mm1 \n\t" |
| 81 | |
| 82 | "paddw %%mm7, %%mm0 \n\t" |
| 83 | "paddw %%mm7, %%mm1 \n\t" |
| 84 | |
| 85 | "pxor %%mm0, %%mm2 \n\t" |
| 86 | "pxor %%mm1, %%mm3 \n\t" |
| 87 | |
| 88 | "pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 |
| 89 | "pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 |
| 90 | |
| 91 | "pandn %%mm2, %%mm0 \n\t" |
| 92 | "pandn %%mm3, %%mm1 \n\t" |
| 93 | |
| 94 | "movq %%mm0, (%0, %3) \n\t" |
| 95 | "movq %%mm1, 8(%0, %3) \n\t" |
| 96 | |
| 97 | "add $16, %3 \n\t" |
| 98 | "jng 1b \n\t" |
| 99 | ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs)) |
| 100 | : "memory" |
| 101 | ); |
| 102 | block[0]= level; |
| 103 | } |
| 104 | |
| 105 | |
| 106 | static void dct_unquantize_h263_inter_mmx(MpegEncContext *s, |
| 107 | int16_t *block, int n, int qscale) |
| 108 | { |
| 109 | x86_reg qmul, qadd, nCoeffs; |
| 110 | |
| 111 | qmul = qscale << 1; |
| 112 | qadd = (qscale - 1) | 1; |
| 113 | |
| 114 | av_assert2(s->block_last_index[n]>=0 || s->h263_aic); |
| 115 | |
| 116 | nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
| 117 | |
| 118 | __asm__ volatile( |
| 119 | "movd %1, %%mm6 \n\t" //qmul |
| 120 | "packssdw %%mm6, %%mm6 \n\t" |
| 121 | "packssdw %%mm6, %%mm6 \n\t" |
| 122 | "movd %2, %%mm5 \n\t" //qadd |
| 123 | "pxor %%mm7, %%mm7 \n\t" |
| 124 | "packssdw %%mm5, %%mm5 \n\t" |
| 125 | "packssdw %%mm5, %%mm5 \n\t" |
| 126 | "psubw %%mm5, %%mm7 \n\t" |
| 127 | "pxor %%mm4, %%mm4 \n\t" |
| 128 | ".p2align 4 \n\t" |
| 129 | "1: \n\t" |
| 130 | "movq (%0, %3), %%mm0 \n\t" |
| 131 | "movq 8(%0, %3), %%mm1 \n\t" |
| 132 | |
| 133 | "pmullw %%mm6, %%mm0 \n\t" |
| 134 | "pmullw %%mm6, %%mm1 \n\t" |
| 135 | |
| 136 | "movq (%0, %3), %%mm2 \n\t" |
| 137 | "movq 8(%0, %3), %%mm3 \n\t" |
| 138 | |
| 139 | "pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
| 140 | "pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
| 141 | |
| 142 | "pxor %%mm2, %%mm0 \n\t" |
| 143 | "pxor %%mm3, %%mm1 \n\t" |
| 144 | |
| 145 | "paddw %%mm7, %%mm0 \n\t" |
| 146 | "paddw %%mm7, %%mm1 \n\t" |
| 147 | |
| 148 | "pxor %%mm0, %%mm2 \n\t" |
| 149 | "pxor %%mm1, %%mm3 \n\t" |
| 150 | |
| 151 | "pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 |
| 152 | "pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 |
| 153 | |
| 154 | "pandn %%mm2, %%mm0 \n\t" |
| 155 | "pandn %%mm3, %%mm1 \n\t" |
| 156 | |
| 157 | "movq %%mm0, (%0, %3) \n\t" |
| 158 | "movq %%mm1, 8(%0, %3) \n\t" |
| 159 | |
| 160 | "add $16, %3 \n\t" |
| 161 | "jng 1b \n\t" |
| 162 | ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs)) |
| 163 | : "memory" |
| 164 | ); |
| 165 | } |
| 166 | |
| 167 | static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s, |
| 168 | int16_t *block, int n, int qscale) |
| 169 | { |
| 170 | x86_reg nCoeffs; |
| 171 | const uint16_t *quant_matrix; |
| 172 | int block0; |
| 173 | |
| 174 | av_assert2(s->block_last_index[n]>=0); |
| 175 | |
| 176 | nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1; |
| 177 | |
| 178 | if (n < 4) |
| 179 | block0 = block[0] * s->y_dc_scale; |
| 180 | else |
| 181 | block0 = block[0] * s->c_dc_scale; |
| 182 | /* XXX: only mpeg1 */ |
| 183 | quant_matrix = s->intra_matrix; |
| 184 | __asm__ volatile( |
| 185 | "pcmpeqw %%mm7, %%mm7 \n\t" |
| 186 | "psrlw $15, %%mm7 \n\t" |
| 187 | "movd %2, %%mm6 \n\t" |
| 188 | "packssdw %%mm6, %%mm6 \n\t" |
| 189 | "packssdw %%mm6, %%mm6 \n\t" |
| 190 | "mov %3, %%"REG_a" \n\t" |
| 191 | ".p2align 4 \n\t" |
| 192 | "1: \n\t" |
| 193 | "movq (%0, %%"REG_a"), %%mm0 \n\t" |
| 194 | "movq 8(%0, %%"REG_a"), %%mm1 \n\t" |
| 195 | "movq (%1, %%"REG_a"), %%mm4 \n\t" |
| 196 | "movq 8(%1, %%"REG_a"), %%mm5 \n\t" |
| 197 | "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] |
| 198 | "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] |
| 199 | "pxor %%mm2, %%mm2 \n\t" |
| 200 | "pxor %%mm3, %%mm3 \n\t" |
| 201 | "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
| 202 | "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
| 203 | "pxor %%mm2, %%mm0 \n\t" |
| 204 | "pxor %%mm3, %%mm1 \n\t" |
| 205 | "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) |
| 206 | "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) |
| 207 | "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q |
| 208 | "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q |
| 209 | "pxor %%mm4, %%mm4 \n\t" |
| 210 | "pxor %%mm5, %%mm5 \n\t" // FIXME slow |
| 211 | "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 |
| 212 | "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 |
| 213 | "psraw $3, %%mm0 \n\t" |
| 214 | "psraw $3, %%mm1 \n\t" |
| 215 | "psubw %%mm7, %%mm0 \n\t" |
| 216 | "psubw %%mm7, %%mm1 \n\t" |
| 217 | "por %%mm7, %%mm0 \n\t" |
| 218 | "por %%mm7, %%mm1 \n\t" |
| 219 | "pxor %%mm2, %%mm0 \n\t" |
| 220 | "pxor %%mm3, %%mm1 \n\t" |
| 221 | "psubw %%mm2, %%mm0 \n\t" |
| 222 | "psubw %%mm3, %%mm1 \n\t" |
| 223 | "pandn %%mm0, %%mm4 \n\t" |
| 224 | "pandn %%mm1, %%mm5 \n\t" |
| 225 | "movq %%mm4, (%0, %%"REG_a") \n\t" |
| 226 | "movq %%mm5, 8(%0, %%"REG_a") \n\t" |
| 227 | |
| 228 | "add $16, %%"REG_a" \n\t" |
| 229 | "js 1b \n\t" |
| 230 | ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) |
| 231 | : "%"REG_a, "memory" |
| 232 | ); |
| 233 | block[0]= block0; |
| 234 | } |
| 235 | |
| 236 | static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s, |
| 237 | int16_t *block, int n, int qscale) |
| 238 | { |
| 239 | x86_reg nCoeffs; |
| 240 | const uint16_t *quant_matrix; |
| 241 | |
| 242 | av_assert2(s->block_last_index[n]>=0); |
| 243 | |
| 244 | nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1; |
| 245 | |
| 246 | quant_matrix = s->inter_matrix; |
| 247 | __asm__ volatile( |
| 248 | "pcmpeqw %%mm7, %%mm7 \n\t" |
| 249 | "psrlw $15, %%mm7 \n\t" |
| 250 | "movd %2, %%mm6 \n\t" |
| 251 | "packssdw %%mm6, %%mm6 \n\t" |
| 252 | "packssdw %%mm6, %%mm6 \n\t" |
| 253 | "mov %3, %%"REG_a" \n\t" |
| 254 | ".p2align 4 \n\t" |
| 255 | "1: \n\t" |
| 256 | "movq (%0, %%"REG_a"), %%mm0 \n\t" |
| 257 | "movq 8(%0, %%"REG_a"), %%mm1 \n\t" |
| 258 | "movq (%1, %%"REG_a"), %%mm4 \n\t" |
| 259 | "movq 8(%1, %%"REG_a"), %%mm5 \n\t" |
| 260 | "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] |
| 261 | "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] |
| 262 | "pxor %%mm2, %%mm2 \n\t" |
| 263 | "pxor %%mm3, %%mm3 \n\t" |
| 264 | "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
| 265 | "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
| 266 | "pxor %%mm2, %%mm0 \n\t" |
| 267 | "pxor %%mm3, %%mm1 \n\t" |
| 268 | "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) |
| 269 | "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) |
| 270 | "paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2 |
| 271 | "paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2 |
| 272 | "paddw %%mm7, %%mm0 \n\t" // abs(block[i])*2 + 1 |
| 273 | "paddw %%mm7, %%mm1 \n\t" // abs(block[i])*2 + 1 |
| 274 | "pmullw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q |
| 275 | "pmullw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q |
| 276 | "pxor %%mm4, %%mm4 \n\t" |
| 277 | "pxor %%mm5, %%mm5 \n\t" // FIXME slow |
| 278 | "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 |
| 279 | "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 |
| 280 | "psraw $4, %%mm0 \n\t" |
| 281 | "psraw $4, %%mm1 \n\t" |
| 282 | "psubw %%mm7, %%mm0 \n\t" |
| 283 | "psubw %%mm7, %%mm1 \n\t" |
| 284 | "por %%mm7, %%mm0 \n\t" |
| 285 | "por %%mm7, %%mm1 \n\t" |
| 286 | "pxor %%mm2, %%mm0 \n\t" |
| 287 | "pxor %%mm3, %%mm1 \n\t" |
| 288 | "psubw %%mm2, %%mm0 \n\t" |
| 289 | "psubw %%mm3, %%mm1 \n\t" |
| 290 | "pandn %%mm0, %%mm4 \n\t" |
| 291 | "pandn %%mm1, %%mm5 \n\t" |
| 292 | "movq %%mm4, (%0, %%"REG_a") \n\t" |
| 293 | "movq %%mm5, 8(%0, %%"REG_a") \n\t" |
| 294 | |
| 295 | "add $16, %%"REG_a" \n\t" |
| 296 | "js 1b \n\t" |
| 297 | ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) |
| 298 | : "%"REG_a, "memory" |
| 299 | ); |
| 300 | } |
| 301 | |
| 302 | static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s, |
| 303 | int16_t *block, int n, int qscale) |
| 304 | { |
| 305 | x86_reg nCoeffs; |
| 306 | const uint16_t *quant_matrix; |
| 307 | int block0; |
| 308 | |
| 309 | av_assert2(s->block_last_index[n]>=0); |
| 310 | |
| 311 | if(s->alternate_scan) nCoeffs= 63; //FIXME |
| 312 | else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; |
| 313 | |
| 314 | if (n < 4) |
| 315 | block0 = block[0] * s->y_dc_scale; |
| 316 | else |
| 317 | block0 = block[0] * s->c_dc_scale; |
| 318 | quant_matrix = s->intra_matrix; |
| 319 | __asm__ volatile( |
| 320 | "pcmpeqw %%mm7, %%mm7 \n\t" |
| 321 | "psrlw $15, %%mm7 \n\t" |
| 322 | "movd %2, %%mm6 \n\t" |
| 323 | "packssdw %%mm6, %%mm6 \n\t" |
| 324 | "packssdw %%mm6, %%mm6 \n\t" |
| 325 | "mov %3, %%"REG_a" \n\t" |
| 326 | ".p2align 4 \n\t" |
| 327 | "1: \n\t" |
| 328 | "movq (%0, %%"REG_a"), %%mm0 \n\t" |
| 329 | "movq 8(%0, %%"REG_a"), %%mm1 \n\t" |
| 330 | "movq (%1, %%"REG_a"), %%mm4 \n\t" |
| 331 | "movq 8(%1, %%"REG_a"), %%mm5 \n\t" |
| 332 | "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] |
| 333 | "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] |
| 334 | "pxor %%mm2, %%mm2 \n\t" |
| 335 | "pxor %%mm3, %%mm3 \n\t" |
| 336 | "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
| 337 | "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
| 338 | "pxor %%mm2, %%mm0 \n\t" |
| 339 | "pxor %%mm3, %%mm1 \n\t" |
| 340 | "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) |
| 341 | "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) |
| 342 | "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q |
| 343 | "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q |
| 344 | "pxor %%mm4, %%mm4 \n\t" |
| 345 | "pxor %%mm5, %%mm5 \n\t" // FIXME slow |
| 346 | "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 |
| 347 | "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 |
| 348 | "psraw $3, %%mm0 \n\t" |
| 349 | "psraw $3, %%mm1 \n\t" |
| 350 | "pxor %%mm2, %%mm0 \n\t" |
| 351 | "pxor %%mm3, %%mm1 \n\t" |
| 352 | "psubw %%mm2, %%mm0 \n\t" |
| 353 | "psubw %%mm3, %%mm1 \n\t" |
| 354 | "pandn %%mm0, %%mm4 \n\t" |
| 355 | "pandn %%mm1, %%mm5 \n\t" |
| 356 | "movq %%mm4, (%0, %%"REG_a") \n\t" |
| 357 | "movq %%mm5, 8(%0, %%"REG_a") \n\t" |
| 358 | |
| 359 | "add $16, %%"REG_a" \n\t" |
| 360 | "jng 1b \n\t" |
| 361 | ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) |
| 362 | : "%"REG_a, "memory" |
| 363 | ); |
| 364 | block[0]= block0; |
| 365 | //Note, we do not do mismatch control for intra as errors cannot accumulate |
| 366 | } |
| 367 | |
| 368 | static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s, |
| 369 | int16_t *block, int n, int qscale) |
| 370 | { |
| 371 | x86_reg nCoeffs; |
| 372 | const uint16_t *quant_matrix; |
| 373 | |
| 374 | av_assert2(s->block_last_index[n]>=0); |
| 375 | |
| 376 | if(s->alternate_scan) nCoeffs= 63; //FIXME |
| 377 | else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; |
| 378 | |
| 379 | quant_matrix = s->inter_matrix; |
| 380 | __asm__ volatile( |
| 381 | "pcmpeqw %%mm7, %%mm7 \n\t" |
| 382 | "psrlq $48, %%mm7 \n\t" |
| 383 | "movd %2, %%mm6 \n\t" |
| 384 | "packssdw %%mm6, %%mm6 \n\t" |
| 385 | "packssdw %%mm6, %%mm6 \n\t" |
| 386 | "mov %3, %%"REG_a" \n\t" |
| 387 | ".p2align 4 \n\t" |
| 388 | "1: \n\t" |
| 389 | "movq (%0, %%"REG_a"), %%mm0 \n\t" |
| 390 | "movq 8(%0, %%"REG_a"), %%mm1 \n\t" |
| 391 | "movq (%1, %%"REG_a"), %%mm4 \n\t" |
| 392 | "movq 8(%1, %%"REG_a"), %%mm5 \n\t" |
| 393 | "pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] |
| 394 | "pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] |
| 395 | "pxor %%mm2, %%mm2 \n\t" |
| 396 | "pxor %%mm3, %%mm3 \n\t" |
| 397 | "pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
| 398 | "pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
| 399 | "pxor %%mm2, %%mm0 \n\t" |
| 400 | "pxor %%mm3, %%mm1 \n\t" |
| 401 | "psubw %%mm2, %%mm0 \n\t" // abs(block[i]) |
| 402 | "psubw %%mm3, %%mm1 \n\t" // abs(block[i]) |
| 403 | "paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2 |
| 404 | "paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2 |
| 405 | "pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*2*q |
| 406 | "pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*2*q |
| 407 | "paddw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q |
| 408 | "paddw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q |
| 409 | "pxor %%mm4, %%mm4 \n\t" |
| 410 | "pxor %%mm5, %%mm5 \n\t" // FIXME slow |
| 411 | "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 |
| 412 | "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 |
| 413 | "psrlw $4, %%mm0 \n\t" |
| 414 | "psrlw $4, %%mm1 \n\t" |
| 415 | "pxor %%mm2, %%mm0 \n\t" |
| 416 | "pxor %%mm3, %%mm1 \n\t" |
| 417 | "psubw %%mm2, %%mm0 \n\t" |
| 418 | "psubw %%mm3, %%mm1 \n\t" |
| 419 | "pandn %%mm0, %%mm4 \n\t" |
| 420 | "pandn %%mm1, %%mm5 \n\t" |
| 421 | "pxor %%mm4, %%mm7 \n\t" |
| 422 | "pxor %%mm5, %%mm7 \n\t" |
| 423 | "movq %%mm4, (%0, %%"REG_a") \n\t" |
| 424 | "movq %%mm5, 8(%0, %%"REG_a") \n\t" |
| 425 | |
| 426 | "add $16, %%"REG_a" \n\t" |
| 427 | "jng 1b \n\t" |
| 428 | "movd 124(%0, %3), %%mm0 \n\t" |
| 429 | "movq %%mm7, %%mm6 \n\t" |
| 430 | "psrlq $32, %%mm7 \n\t" |
| 431 | "pxor %%mm6, %%mm7 \n\t" |
| 432 | "movq %%mm7, %%mm6 \n\t" |
| 433 | "psrlq $16, %%mm7 \n\t" |
| 434 | "pxor %%mm6, %%mm7 \n\t" |
| 435 | "pslld $31, %%mm7 \n\t" |
| 436 | "psrlq $15, %%mm7 \n\t" |
| 437 | "pxor %%mm7, %%mm0 \n\t" |
| 438 | "movd %%mm0, 124(%0, %3) \n\t" |
| 439 | |
| 440 | ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "r" (-2*nCoeffs) |
| 441 | : "%"REG_a, "memory" |
| 442 | ); |
| 443 | } |
| 444 | |
| 445 | #endif /* HAVE_MMX_INLINE */ |
| 446 | |
| 447 | av_cold void ff_mpv_common_init_x86(MpegEncContext *s) |
| 448 | { |
| 449 | #if HAVE_MMX_INLINE |
| 450 | int cpu_flags = av_get_cpu_flags(); |
| 451 | |
| 452 | if (INLINE_MMX(cpu_flags)) { |
| 453 | s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx; |
| 454 | s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx; |
| 455 | s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx; |
| 456 | s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx; |
| 457 | if(!(s->flags & CODEC_FLAG_BITEXACT)) |
| 458 | s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx; |
| 459 | s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx; |
| 460 | } |
| 461 | #endif /* HAVE_MMX_INLINE */ |
| 462 | } |