1/* 2 * MMX optimized forward DCT 3 * The gcc porting is Copyright (c) 2001 Fabrice Bellard. 4 * cleanup/optimizations are Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> 5 * SSE2 optimization is Copyright (c) 2004 Denes Balatoni. 6 * 7 * from fdctam32.c - AP922 MMX(3D-Now) forward-DCT 8 * 9 * Intel Application Note AP-922 - fast, precise implementation of DCT 10 * http://developer.intel.com/vtune/cbts/appnotes.htm 11 * 12 * Also of inspiration: 13 * a page about fdct at http://www.geocities.com/ssavekar/dct.htm 14 * Skal's fdct at http://skal.planet-d.net/coding/dct.html 15 * 16 * This file is part of Libav. 17 * 18 * Libav is free software; you can redistribute it and/or 19 * modify it under the terms of the GNU Lesser General Public 20 * License as published by the Free Software Foundation; either 21 * version 2.1 of the License, or (at your option) any later version. 22 * 23 * Libav is distributed in the hope that it will be useful, 24 * but WITHOUT ANY WARRANTY; without even the implied warranty of 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 26 * Lesser General Public License for more details. 27 * 28 * You should have received a copy of the GNU Lesser General Public 29 * License along with Libav; if not, write to the Free Software 30 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 31 */ 32 33#include "libavutil/common.h" 34#include "libavutil/x86_cpu.h" 35#include "libavcodec/dsputil.h" 36 37////////////////////////////////////////////////////////////////////// 38// 39// constants for the forward DCT 40// ----------------------------- 41// 42// Be sure to check that your compiler is aligning all constants to QWORD 43// (8-byte) memory boundaries! Otherwise the unaligned memory access will 44// severely stall MMX execution. 45// 46////////////////////////////////////////////////////////////////////// 47 48#define BITS_FRW_ACC 3 //; 2 or 3 for accuracy 49#define SHIFT_FRW_COL BITS_FRW_ACC 50#define SHIFT_FRW_ROW (BITS_FRW_ACC + 17 - 3) 51#define RND_FRW_ROW (1 << (SHIFT_FRW_ROW-1)) 52//#define RND_FRW_COL (1 << (SHIFT_FRW_COL-1)) 53 54#define X8(x) x,x,x,x,x,x,x,x 55 56//concatenated table, for forward DCT transformation 57DECLARE_ALIGNED(16, static const int16_t, fdct_tg_all_16)[24] = { 58 X8(13036), // tg * (2<<16) + 0.5 59 X8(27146), // tg * (2<<16) + 0.5 60 X8(-21746) // tg * (2<<16) + 0.5 61}; 62 63DECLARE_ALIGNED(16, static const int16_t, ocos_4_16)[8] = { 64 X8(23170) //cos * (2<<15) + 0.5 65}; 66 67DECLARE_ALIGNED(16, static const int16_t, fdct_one_corr)[8] = { X8(1) }; 68 69DECLARE_ALIGNED(8, static const int32_t, fdct_r_row)[2] = {RND_FRW_ROW, RND_FRW_ROW }; 70 71static struct 72{ 73 DECLARE_ALIGNED(16, const int32_t, fdct_r_row_sse2)[4]; 74} fdct_r_row_sse2 = 75{{ 76 RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW 77}}; 78//DECLARE_ALIGNED(16, static const long, fdct_r_row_sse2)[4] = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW}; 79 80DECLARE_ALIGNED(8, static const int16_t, tab_frw_01234567)[] = { // forward_dct coeff table 81 16384, 16384, 22725, 19266, 82 16384, 16384, 12873, 4520, 83 21407, 8867, 19266, -4520, 84 -8867, -21407, -22725, -12873, 85 16384, -16384, 12873, -22725, 86 -16384, 16384, 4520, 19266, 87 8867, -21407, 4520, -12873, 88 21407, -8867, 19266, -22725, 89 90 22725, 22725, 31521, 26722, 91 22725, 22725, 17855, 6270, 92 29692, 12299, 26722, -6270, 93 -12299, -29692, -31521, -17855, 94 22725, -22725, 17855, -31521, 95 -22725, 22725, 6270, 26722, 96 12299, -29692, 6270, -17855, 97 29692, -12299, 26722, -31521, 98 99 21407, 21407, 29692, 25172, 100 21407, 21407, 16819, 5906, 101 27969, 11585, 25172, -5906, 102 -11585, -27969, -29692, -16819, 103 21407, -21407, 16819, -29692, 104 -21407, 21407, 5906, 25172, 105 11585, -27969, 5906, -16819, 106 27969, -11585, 25172, -29692, 107 108 19266, 19266, 26722, 22654, 109 19266, 19266, 15137, 5315, 110 25172, 10426, 22654, -5315, 111 -10426, -25172, -26722, -15137, 112 19266, -19266, 15137, -26722, 113 -19266, 19266, 5315, 22654, 114 10426, -25172, 5315, -15137, 115 25172, -10426, 22654, -26722, 116 117 16384, 16384, 22725, 19266, 118 16384, 16384, 12873, 4520, 119 21407, 8867, 19266, -4520, 120 -8867, -21407, -22725, -12873, 121 16384, -16384, 12873, -22725, 122 -16384, 16384, 4520, 19266, 123 8867, -21407, 4520, -12873, 124 21407, -8867, 19266, -22725, 125 126 19266, 19266, 26722, 22654, 127 19266, 19266, 15137, 5315, 128 25172, 10426, 22654, -5315, 129 -10426, -25172, -26722, -15137, 130 19266, -19266, 15137, -26722, 131 -19266, 19266, 5315, 22654, 132 10426, -25172, 5315, -15137, 133 25172, -10426, 22654, -26722, 134 135 21407, 21407, 29692, 25172, 136 21407, 21407, 16819, 5906, 137 27969, 11585, 25172, -5906, 138 -11585, -27969, -29692, -16819, 139 21407, -21407, 16819, -29692, 140 -21407, 21407, 5906, 25172, 141 11585, -27969, 5906, -16819, 142 27969, -11585, 25172, -29692, 143 144 22725, 22725, 31521, 26722, 145 22725, 22725, 17855, 6270, 146 29692, 12299, 26722, -6270, 147 -12299, -29692, -31521, -17855, 148 22725, -22725, 17855, -31521, 149 -22725, 22725, 6270, 26722, 150 12299, -29692, 6270, -17855, 151 29692, -12299, 26722, -31521, 152}; 153 154static struct 155{ 156 DECLARE_ALIGNED(16, const int16_t, tab_frw_01234567_sse2)[256]; 157} tab_frw_01234567_sse2 = 158{{ 159//DECLARE_ALIGNED(16, static const int16_t, tab_frw_01234567_sse2)[] = { // forward_dct coeff table 160#define TABLE_SSE2 C4, C4, C1, C3, -C6, -C2, -C1, -C5, \ 161 C4, C4, C5, C7, C2, C6, C3, -C7, \ 162 -C4, C4, C7, C3, C6, -C2, C7, -C5, \ 163 C4, -C4, C5, -C1, C2, -C6, C3, -C1, 164// c1..c7 * cos(pi/4) * 2^15 165#define C1 22725 166#define C2 21407 167#define C3 19266 168#define C4 16384 169#define C5 12873 170#define C6 8867 171#define C7 4520 172TABLE_SSE2 173 174#undef C1 175#undef C2 176#undef C3 177#undef C4 178#undef C5 179#undef C6 180#undef C7 181#define C1 31521 182#define C2 29692 183#define C3 26722 184#define C4 22725 185#define C5 17855 186#define C6 12299 187#define C7 6270 188TABLE_SSE2 189 190#undef C1 191#undef C2 192#undef C3 193#undef C4 194#undef C5 195#undef C6 196#undef C7 197#define C1 29692 198#define C2 27969 199#define C3 25172 200#define C4 21407 201#define C5 16819 202#define C6 11585 203#define C7 5906 204TABLE_SSE2 205 206#undef C1 207#undef C2 208#undef C3 209#undef C4 210#undef C5 211#undef C6 212#undef C7 213#define C1 26722 214#define C2 25172 215#define C3 22654 216#define C4 19266 217#define C5 15137 218#define C6 10426 219#define C7 5315 220TABLE_SSE2 221 222#undef C1 223#undef C2 224#undef C3 225#undef C4 226#undef C5 227#undef C6 228#undef C7 229#define C1 22725 230#define C2 21407 231#define C3 19266 232#define C4 16384 233#define C5 12873 234#define C6 8867 235#define C7 4520 236TABLE_SSE2 237 238#undef C1 239#undef C2 240#undef C3 241#undef C4 242#undef C5 243#undef C6 244#undef C7 245#define C1 26722 246#define C2 25172 247#define C3 22654 248#define C4 19266 249#define C5 15137 250#define C6 10426 251#define C7 5315 252TABLE_SSE2 253 254#undef C1 255#undef C2 256#undef C3 257#undef C4 258#undef C5 259#undef C6 260#undef C7 261#define C1 29692 262#define C2 27969 263#define C3 25172 264#define C4 21407 265#define C5 16819 266#define C6 11585 267#define C7 5906 268TABLE_SSE2 269 270#undef C1 271#undef C2 272#undef C3 273#undef C4 274#undef C5 275#undef C6 276#undef C7 277#define C1 31521 278#define C2 29692 279#define C3 26722 280#define C4 22725 281#define C5 17855 282#define C6 12299 283#define C7 6270 284TABLE_SSE2 285}}; 286 287#define S(s) AV_TOSTRING(s) //AV_STRINGIFY is too long 288 289#define FDCT_COL(cpu, mm, mov)\ 290static av_always_inline void fdct_col_##cpu(const int16_t *in, int16_t *out, int offset)\ 291{\ 292 __asm__ volatile (\ 293 #mov" 16(%0), %%"#mm"0 \n\t" \ 294 #mov" 96(%0), %%"#mm"1 \n\t" \ 295 #mov" %%"#mm"0, %%"#mm"2 \n\t" \ 296 #mov" 32(%0), %%"#mm"3 \n\t" \ 297 "paddsw %%"#mm"1, %%"#mm"0 \n\t" \ 298 #mov" 80(%0), %%"#mm"4 \n\t" \ 299 "psllw $"S(SHIFT_FRW_COL)", %%"#mm"0 \n\t" \ 300 #mov" (%0), %%"#mm"5 \n\t" \ 301 "paddsw %%"#mm"3, %%"#mm"4 \n\t" \ 302 "paddsw 112(%0), %%"#mm"5 \n\t" \ 303 "psllw $"S(SHIFT_FRW_COL)", %%"#mm"4 \n\t" \ 304 #mov" %%"#mm"0, %%"#mm"6 \n\t" \ 305 "psubsw %%"#mm"1, %%"#mm"2 \n\t" \ 306 #mov" 16(%1), %%"#mm"1 \n\t" \ 307 "psubsw %%"#mm"4, %%"#mm"0 \n\t" \ 308 #mov" 48(%0), %%"#mm"7 \n\t" \ 309 "pmulhw %%"#mm"0, %%"#mm"1 \n\t" \ 310 "paddsw 64(%0), %%"#mm"7 \n\t" \ 311 "psllw $"S(SHIFT_FRW_COL)", %%"#mm"5 \n\t" \ 312 "paddsw %%"#mm"4, %%"#mm"6 \n\t" \ 313 "psllw $"S(SHIFT_FRW_COL)", %%"#mm"7 \n\t" \ 314 #mov" %%"#mm"5, %%"#mm"4 \n\t" \ 315 "psubsw %%"#mm"7, %%"#mm"5 \n\t" \ 316 "paddsw %%"#mm"5, %%"#mm"1 \n\t" \ 317 "paddsw %%"#mm"7, %%"#mm"4 \n\t" \ 318 "por (%2), %%"#mm"1 \n\t" \ 319 "psllw $"S(SHIFT_FRW_COL)"+1, %%"#mm"2 \n\t" \ 320 "pmulhw 16(%1), %%"#mm"5 \n\t" \ 321 #mov" %%"#mm"4, %%"#mm"7 \n\t" \ 322 "psubsw 80(%0), %%"#mm"3 \n\t" \ 323 "psubsw %%"#mm"6, %%"#mm"4 \n\t" \ 324 #mov" %%"#mm"1, 32(%3) \n\t" \ 325 "paddsw %%"#mm"6, %%"#mm"7 \n\t" \ 326 #mov" 48(%0), %%"#mm"1 \n\t" \ 327 "psllw $"S(SHIFT_FRW_COL)"+1, %%"#mm"3 \n\t" \ 328 "psubsw 64(%0), %%"#mm"1 \n\t" \ 329 #mov" %%"#mm"2, %%"#mm"6 \n\t" \ 330 #mov" %%"#mm"4, 64(%3) \n\t" \ 331 "paddsw %%"#mm"3, %%"#mm"2 \n\t" \ 332 "pmulhw (%4), %%"#mm"2 \n\t" \ 333 "psubsw %%"#mm"3, %%"#mm"6 \n\t" \ 334 "pmulhw (%4), %%"#mm"6 \n\t" \ 335 "psubsw %%"#mm"0, %%"#mm"5 \n\t" \ 336 "por (%2), %%"#mm"5 \n\t" \ 337 "psllw $"S(SHIFT_FRW_COL)", %%"#mm"1 \n\t" \ 338 "por (%2), %%"#mm"2 \n\t" \ 339 #mov" %%"#mm"1, %%"#mm"4 \n\t" \ 340 #mov" (%0), %%"#mm"3 \n\t" \ 341 "paddsw %%"#mm"6, %%"#mm"1 \n\t" \ 342 "psubsw 112(%0), %%"#mm"3 \n\t" \ 343 "psubsw %%"#mm"6, %%"#mm"4 \n\t" \ 344 #mov" (%1), %%"#mm"0 \n\t" \ 345 "psllw $"S(SHIFT_FRW_COL)", %%"#mm"3 \n\t" \ 346 #mov" 32(%1), %%"#mm"6 \n\t" \ 347 "pmulhw %%"#mm"1, %%"#mm"0 \n\t" \ 348 #mov" %%"#mm"7, (%3) \n\t" \ 349 "pmulhw %%"#mm"4, %%"#mm"6 \n\t" \ 350 #mov" %%"#mm"5, 96(%3) \n\t" \ 351 #mov" %%"#mm"3, %%"#mm"7 \n\t" \ 352 #mov" 32(%1), %%"#mm"5 \n\t" \ 353 "psubsw %%"#mm"2, %%"#mm"7 \n\t" \ 354 "paddsw %%"#mm"2, %%"#mm"3 \n\t" \ 355 "pmulhw %%"#mm"7, %%"#mm"5 \n\t" \ 356 "paddsw %%"#mm"3, %%"#mm"0 \n\t" \ 357 "paddsw %%"#mm"4, %%"#mm"6 \n\t" \ 358 "pmulhw (%1), %%"#mm"3 \n\t" \ 359 "por (%2), %%"#mm"0 \n\t" \ 360 "paddsw %%"#mm"7, %%"#mm"5 \n\t" \ 361 "psubsw %%"#mm"6, %%"#mm"7 \n\t" \ 362 #mov" %%"#mm"0, 16(%3) \n\t" \ 363 "paddsw %%"#mm"4, %%"#mm"5 \n\t" \ 364 #mov" %%"#mm"7, 48(%3) \n\t" \ 365 "psubsw %%"#mm"1, %%"#mm"3 \n\t" \ 366 #mov" %%"#mm"5, 80(%3) \n\t" \ 367 #mov" %%"#mm"3, 112(%3) \n\t" \ 368 : \ 369 : "r" (in + offset), "r" (fdct_tg_all_16), "r" (fdct_one_corr), \ 370 "r" (out + offset), "r" (ocos_4_16)); \ 371} 372 373FDCT_COL(mmx, mm, movq) 374FDCT_COL(sse2, xmm, movdqa) 375 376static av_always_inline void fdct_row_sse2(const int16_t *in, int16_t *out) 377{ 378 __asm__ volatile( 379#define FDCT_ROW_SSE2_H1(i,t) \ 380 "movq " #i "(%0), %%xmm2 \n\t" \ 381 "movq " #i "+8(%0), %%xmm0 \n\t" \ 382 "movdqa " #t "+32(%1), %%xmm3 \n\t" \ 383 "movdqa " #t "+48(%1), %%xmm7 \n\t" \ 384 "movdqa " #t "(%1), %%xmm4 \n\t" \ 385 "movdqa " #t "+16(%1), %%xmm5 \n\t" 386 387#define FDCT_ROW_SSE2_H2(i,t) \ 388 "movq " #i "(%0), %%xmm2 \n\t" \ 389 "movq " #i "+8(%0), %%xmm0 \n\t" \ 390 "movdqa " #t "+32(%1), %%xmm3 \n\t" \ 391 "movdqa " #t "+48(%1), %%xmm7 \n\t" 392 393#define FDCT_ROW_SSE2(i) \ 394 "movq %%xmm2, %%xmm1 \n\t" \ 395 "pshuflw $27, %%xmm0, %%xmm0 \n\t" \ 396 "paddsw %%xmm0, %%xmm1 \n\t" \ 397 "psubsw %%xmm0, %%xmm2 \n\t" \ 398 "punpckldq %%xmm2, %%xmm1 \n\t" \ 399 "pshufd $78, %%xmm1, %%xmm2 \n\t" \ 400 "pmaddwd %%xmm2, %%xmm3 \n\t" \ 401 "pmaddwd %%xmm1, %%xmm7 \n\t" \ 402 "pmaddwd %%xmm5, %%xmm2 \n\t" \ 403 "pmaddwd %%xmm4, %%xmm1 \n\t" \ 404 "paddd %%xmm7, %%xmm3 \n\t" \ 405 "paddd %%xmm2, %%xmm1 \n\t" \ 406 "paddd %%xmm6, %%xmm3 \n\t" \ 407 "paddd %%xmm6, %%xmm1 \n\t" \ 408 "psrad %3, %%xmm3 \n\t" \ 409 "psrad %3, %%xmm1 \n\t" \ 410 "packssdw %%xmm3, %%xmm1 \n\t" \ 411 "movdqa %%xmm1, " #i "(%4) \n\t" 412 413 "movdqa (%2), %%xmm6 \n\t" 414 FDCT_ROW_SSE2_H1(0,0) 415 FDCT_ROW_SSE2(0) 416 FDCT_ROW_SSE2_H2(64,0) 417 FDCT_ROW_SSE2(64) 418 419 FDCT_ROW_SSE2_H1(16,64) 420 FDCT_ROW_SSE2(16) 421 FDCT_ROW_SSE2_H2(112,64) 422 FDCT_ROW_SSE2(112) 423 424 FDCT_ROW_SSE2_H1(32,128) 425 FDCT_ROW_SSE2(32) 426 FDCT_ROW_SSE2_H2(96,128) 427 FDCT_ROW_SSE2(96) 428 429 FDCT_ROW_SSE2_H1(48,192) 430 FDCT_ROW_SSE2(48) 431 FDCT_ROW_SSE2_H2(80,192) 432 FDCT_ROW_SSE2(80) 433 : 434 : "r" (in), "r" (tab_frw_01234567_sse2.tab_frw_01234567_sse2), 435 "r" (fdct_r_row_sse2.fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out) 436 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3", 437 "%xmm4", "%xmm5", "%xmm6", "%xmm7") 438 ); 439} 440 441static av_always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const int16_t *table) 442{ 443 __asm__ volatile ( 444 "pshufw $0x1B, 8(%0), %%mm5 \n\t" 445 "movq (%0), %%mm0 \n\t" 446 "movq %%mm0, %%mm1 \n\t" 447 "paddsw %%mm5, %%mm0 \n\t" 448 "psubsw %%mm5, %%mm1 \n\t" 449 "movq %%mm0, %%mm2 \n\t" 450 "punpckldq %%mm1, %%mm0 \n\t" 451 "punpckhdq %%mm1, %%mm2 \n\t" 452 "movq (%1), %%mm1 \n\t" 453 "movq 8(%1), %%mm3 \n\t" 454 "movq 16(%1), %%mm4 \n\t" 455 "movq 24(%1), %%mm5 \n\t" 456 "movq 32(%1), %%mm6 \n\t" 457 "movq 40(%1), %%mm7 \n\t" 458 "pmaddwd %%mm0, %%mm1 \n\t" 459 "pmaddwd %%mm2, %%mm3 \n\t" 460 "pmaddwd %%mm0, %%mm4 \n\t" 461 "pmaddwd %%mm2, %%mm5 \n\t" 462 "pmaddwd %%mm0, %%mm6 \n\t" 463 "pmaddwd %%mm2, %%mm7 \n\t" 464 "pmaddwd 48(%1), %%mm0 \n\t" 465 "pmaddwd 56(%1), %%mm2 \n\t" 466 "paddd %%mm1, %%mm3 \n\t" 467 "paddd %%mm4, %%mm5 \n\t" 468 "paddd %%mm6, %%mm7 \n\t" 469 "paddd %%mm0, %%mm2 \n\t" 470 "movq (%2), %%mm0 \n\t" 471 "paddd %%mm0, %%mm3 \n\t" 472 "paddd %%mm0, %%mm5 \n\t" 473 "paddd %%mm0, %%mm7 \n\t" 474 "paddd %%mm0, %%mm2 \n\t" 475 "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t" 476 "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t" 477 "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t" 478 "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t" 479 "packssdw %%mm5, %%mm3 \n\t" 480 "packssdw %%mm2, %%mm7 \n\t" 481 "movq %%mm3, (%3) \n\t" 482 "movq %%mm7, 8(%3) \n\t" 483 : 484 : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out)); 485} 486 487static av_always_inline void fdct_row_mmx(const int16_t *in, int16_t *out, const int16_t *table) 488{ 489 //FIXME reorder (I do not have an old MMX-only CPU here to benchmark ...) 490 __asm__ volatile( 491 "movd 12(%0), %%mm1 \n\t" 492 "punpcklwd 8(%0), %%mm1 \n\t" 493 "movq %%mm1, %%mm2 \n\t" 494 "psrlq $0x20, %%mm1 \n\t" 495 "movq 0(%0), %%mm0 \n\t" 496 "punpcklwd %%mm2, %%mm1 \n\t" 497 "movq %%mm0, %%mm5 \n\t" 498 "paddsw %%mm1, %%mm0 \n\t" 499 "psubsw %%mm1, %%mm5 \n\t" 500 "movq %%mm0, %%mm2 \n\t" 501 "punpckldq %%mm5, %%mm0 \n\t" 502 "punpckhdq %%mm5, %%mm2 \n\t" 503 "movq 0(%1), %%mm1 \n\t" 504 "movq 8(%1), %%mm3 \n\t" 505 "movq 16(%1), %%mm4 \n\t" 506 "movq 24(%1), %%mm5 \n\t" 507 "movq 32(%1), %%mm6 \n\t" 508 "movq 40(%1), %%mm7 \n\t" 509 "pmaddwd %%mm0, %%mm1 \n\t" 510 "pmaddwd %%mm2, %%mm3 \n\t" 511 "pmaddwd %%mm0, %%mm4 \n\t" 512 "pmaddwd %%mm2, %%mm5 \n\t" 513 "pmaddwd %%mm0, %%mm6 \n\t" 514 "pmaddwd %%mm2, %%mm7 \n\t" 515 "pmaddwd 48(%1), %%mm0 \n\t" 516 "pmaddwd 56(%1), %%mm2 \n\t" 517 "paddd %%mm1, %%mm3 \n\t" 518 "paddd %%mm4, %%mm5 \n\t" 519 "paddd %%mm6, %%mm7 \n\t" 520 "paddd %%mm0, %%mm2 \n\t" 521 "movq (%2), %%mm0 \n\t" 522 "paddd %%mm0, %%mm3 \n\t" 523 "paddd %%mm0, %%mm5 \n\t" 524 "paddd %%mm0, %%mm7 \n\t" 525 "paddd %%mm0, %%mm2 \n\t" 526 "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t" 527 "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t" 528 "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t" 529 "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t" 530 "packssdw %%mm5, %%mm3 \n\t" 531 "packssdw %%mm2, %%mm7 \n\t" 532 "movq %%mm3, 0(%3) \n\t" 533 "movq %%mm7, 8(%3) \n\t" 534 : 535 : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out)); 536} 537 538void ff_fdct_mmx(int16_t *block) 539{ 540 DECLARE_ALIGNED(8, int64_t, align_tmp)[16]; 541 int16_t * block1= (int16_t*)align_tmp; 542 const int16_t *table= tab_frw_01234567; 543 int i; 544 545 fdct_col_mmx(block, block1, 0); 546 fdct_col_mmx(block, block1, 4); 547 548 for(i=8;i>0;i--) { 549 fdct_row_mmx(block1, block, table); 550 block1 += 8; 551 table += 32; 552 block += 8; 553 } 554} 555 556void ff_fdct_mmx2(int16_t *block) 557{ 558 DECLARE_ALIGNED(8, int64_t, align_tmp)[16]; 559 int16_t *block1= (int16_t*)align_tmp; 560 const int16_t *table= tab_frw_01234567; 561 int i; 562 563 fdct_col_mmx(block, block1, 0); 564 fdct_col_mmx(block, block1, 4); 565 566 for(i=8;i>0;i--) { 567 fdct_row_mmx2(block1, block, table); 568 block1 += 8; 569 table += 32; 570 block += 8; 571 } 572} 573 574void ff_fdct_sse2(int16_t *block) 575{ 576 DECLARE_ALIGNED(16, int64_t, align_tmp)[16]; 577 int16_t * const block1= (int16_t*)align_tmp; 578 579 fdct_col_sse2(block, block1, 0); 580 fdct_row_sse2(block1, block); 581} 582 583