convolve_2d_sse2.c (23807B)
1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved. 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #include <emmintrin.h> 13 14 #include "config/av1_rtcd.h" 15 16 #include "aom_dsp/aom_dsp_common.h" 17 #include "aom_dsp/aom_filter.h" 18 #include "aom_dsp/x86/convolve_sse2.h" 19 #include "aom_dsp/x86/convolve_common_intrin.h" 20 #include "av1/common/convolve.h" 21 22 static void convolve_2d_sr_12tap_sse2( 23 const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int w, 24 int h, const InterpFilterParams *filter_params_x, 25 const InterpFilterParams *filter_params_y, const int subpel_x_qn, 26 const int subpel_y_qn, ConvolveParams *conv_params) { 27 const int bd = 8; 28 29 DECLARE_ALIGNED(16, int16_t, 30 im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]); 31 int im_h = h + filter_params_y->taps - 1; 32 int im_stride = w; 33 int i, j; 34 const int fo_vert = filter_params_y->taps / 2 - 1; 35 const int fo_horiz = filter_params_x->taps / 2 - 1; 36 const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz; 37 38 const __m128i zero = _mm_setzero_si128(); 39 const int bits = 40 FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1; 41 const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; 42 43 assert(conv_params->round_0 > 0); 44 __m128i coeffs[6]; 45 46 /* Horizontal filter */ 47 { 48 prepare_coeffs_12tap(filter_params_x, subpel_x_qn, coeffs); 49 50 const __m128i round_const = _mm_set1_epi32( 51 (1 << (bd + FILTER_BITS - 1)) + ((1 << conv_params->round_0) >> 1)); 52 const __m128i round_shift = _mm_cvtsi32_si128(conv_params->round_0); 53 54 for (i = 0; i < im_h; ++i) { 55 for (j = 0; j < w; j += 8) { 56 const __m128i data = 57 _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]); 58 const __m128i data_2 = 59 _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + (j + 4)]); 60 61 // Filter even-index pixels 62 const __m128i src_0 = _mm_unpacklo_epi8(data, zero); 63 const __m128i res_0 = _mm_madd_epi16(src_0, coeffs[0]); 64 const __m128i src_2 = _mm_unpacklo_epi8(_mm_srli_si128(data, 2), zero); 65 const __m128i res_2 = _mm_madd_epi16(src_2, coeffs[1]); 66 const __m128i src_4 = _mm_unpacklo_epi8(data_2, zero); 67 const __m128i res_4 = _mm_madd_epi16(src_4, coeffs[2]); 68 const __m128i src_6 = 69 _mm_unpacklo_epi8(_mm_srli_si128(data_2, 2), zero); 70 const __m128i res_6 = _mm_madd_epi16(src_6, coeffs[3]); 71 const __m128i src_8 = 72 _mm_unpacklo_epi8(_mm_srli_si128(data_2, 4), zero); 73 const __m128i res_8 = _mm_madd_epi16(src_8, coeffs[4]); 74 const __m128i src_10 = 75 _mm_unpacklo_epi8(_mm_srli_si128(data_2, 6), zero); 76 const __m128i res_10 = _mm_madd_epi16(src_10, coeffs[5]); 77 78 const __m128i res_0246 = _mm_add_epi32(_mm_add_epi32(res_0, res_4), 79 _mm_add_epi32(res_2, res_6)); 80 __m128i res_even = 81 _mm_add_epi32(_mm_add_epi32(res_8, res_10), res_0246); 82 res_even = 83 _mm_sra_epi32(_mm_add_epi32(res_even, round_const), round_shift); 84 85 // Filter odd-index pixels 86 const __m128i src_1 = _mm_unpacklo_epi8(_mm_srli_si128(data, 1), zero); 87 const __m128i res_1 = _mm_madd_epi16(src_1, coeffs[0]); 88 const __m128i src_3 = _mm_unpacklo_epi8(_mm_srli_si128(data, 3), zero); 89 const __m128i res_3 = _mm_madd_epi16(src_3, coeffs[1]); 90 const __m128i src_5 = 91 _mm_unpacklo_epi8(_mm_srli_si128(data_2, 1), zero); 92 const __m128i res_5 = _mm_madd_epi16(src_5, coeffs[2]); 93 const __m128i src_7 = 94 _mm_unpacklo_epi8(_mm_srli_si128(data_2, 3), zero); 95 const __m128i res_7 = _mm_madd_epi16(src_7, coeffs[3]); 96 const __m128i src_9 = 97 _mm_unpacklo_epi8(_mm_srli_si128(data_2, 5), zero); 98 const __m128i res_9 = _mm_madd_epi16(src_9, coeffs[4]); 99 const __m128i src_11 = 100 _mm_unpacklo_epi8(_mm_srli_si128(data_2, 7), zero); 101 const __m128i res_11 = _mm_madd_epi16(src_11, coeffs[5]); 102 103 const __m128i res_1357 = _mm_add_epi32(_mm_add_epi32(res_1, res_5), 104 _mm_add_epi32(res_3, res_7)); 105 __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_9, res_11), res_1357); 106 res_odd = 107 _mm_sra_epi32(_mm_add_epi32(res_odd, round_const), round_shift); 108 109 // Pack in the column order 0, 2, 4, 6, 1, 3, 5, 7 110 __m128i res = _mm_packs_epi32(res_even, res_odd); 111 _mm_storeu_si128((__m128i *)&im_block[i * im_stride + j], res); 112 } 113 } 114 } 115 116 /* Vertical filter */ 117 { 118 prepare_coeffs_12tap(filter_params_y, subpel_y_qn, coeffs); 119 120 const __m128i sum_round = 121 _mm_set1_epi32((1 << offset_bits) + ((1 << conv_params->round_1) >> 1)); 122 const __m128i sum_shift = _mm_cvtsi32_si128(conv_params->round_1); 123 124 const __m128i round_const = _mm_set1_epi32( 125 ((1 << bits) >> 1) - (1 << (offset_bits - conv_params->round_1)) - 126 ((1 << (offset_bits - conv_params->round_1)) >> 1)); 127 const __m128i round_shift = _mm_cvtsi32_si128(bits); 128 129 for (i = 0; i < h; ++i) { 130 for (j = 0; j < w; j += 8) { 131 // Filter even-index pixels 132 const int16_t *data = &im_block[i * im_stride + j]; 133 const __m128i src_0 = 134 _mm_unpacklo_epi16(*(__m128i *)(data + 0 * im_stride), 135 *(__m128i *)(data + 1 * im_stride)); 136 const __m128i src_2 = 137 _mm_unpacklo_epi16(*(__m128i *)(data + 2 * im_stride), 138 *(__m128i *)(data + 3 * im_stride)); 139 const __m128i src_4 = 140 _mm_unpacklo_epi16(*(__m128i *)(data + 4 * im_stride), 141 *(__m128i *)(data + 5 * im_stride)); 142 const __m128i src_6 = 143 _mm_unpacklo_epi16(*(__m128i *)(data + 6 * im_stride), 144 *(__m128i *)(data + 7 * im_stride)); 145 const __m128i src_8 = 146 _mm_unpacklo_epi16(*(__m128i *)(data + 8 * im_stride), 147 *(__m128i *)(data + 9 * im_stride)); 148 const __m128i src_10 = 149 _mm_unpacklo_epi16(*(__m128i *)(data + 10 * im_stride), 150 *(__m128i *)(data + 11 * im_stride)); 151 152 const __m128i res_0 = _mm_madd_epi16(src_0, coeffs[0]); 153 const __m128i res_2 = _mm_madd_epi16(src_2, coeffs[1]); 154 const __m128i res_4 = _mm_madd_epi16(src_4, coeffs[2]); 155 const __m128i res_6 = _mm_madd_epi16(src_6, coeffs[3]); 156 const __m128i res_8 = _mm_madd_epi16(src_8, coeffs[4]); 157 const __m128i res_10 = _mm_madd_epi16(src_10, coeffs[5]); 158 159 const __m128i res_0246 = _mm_add_epi32(_mm_add_epi32(res_0, res_2), 160 _mm_add_epi32(res_4, res_6)); 161 __m128i res_even = 162 _mm_add_epi32(_mm_add_epi32(res_8, res_10), res_0246); 163 164 // Filter odd-index pixels 165 const __m128i src_1 = 166 _mm_unpackhi_epi16(*(__m128i *)(data + 0 * im_stride), 167 *(__m128i *)(data + 1 * im_stride)); 168 const __m128i src_3 = 169 _mm_unpackhi_epi16(*(__m128i *)(data + 2 * im_stride), 170 *(__m128i *)(data + 3 * im_stride)); 171 const __m128i src_5 = 172 _mm_unpackhi_epi16(*(__m128i *)(data + 4 * im_stride), 173 *(__m128i *)(data + 5 * im_stride)); 174 const __m128i src_7 = 175 _mm_unpackhi_epi16(*(__m128i *)(data + 6 * im_stride), 176 *(__m128i *)(data + 7 * im_stride)); 177 const __m128i src_9 = 178 _mm_unpackhi_epi16(*(__m128i *)(data + 8 * im_stride), 179 *(__m128i *)(data + 9 * im_stride)); 180 const __m128i src_11 = 181 _mm_unpackhi_epi16(*(__m128i *)(data + 10 * im_stride), 182 *(__m128i *)(data + 11 * im_stride)); 183 184 const __m128i res_1 = _mm_madd_epi16(src_1, coeffs[0]); 185 const __m128i res_3 = _mm_madd_epi16(src_3, coeffs[1]); 186 const __m128i res_5 = _mm_madd_epi16(src_5, coeffs[2]); 187 const __m128i res_7 = _mm_madd_epi16(src_7, coeffs[3]); 188 const __m128i res_9 = _mm_madd_epi16(src_9, coeffs[4]); 189 const __m128i res_11 = _mm_madd_epi16(src_11, coeffs[5]); 190 191 const __m128i res_1357 = _mm_add_epi32(_mm_add_epi32(res_1, res_5), 192 _mm_add_epi32(res_3, res_7)); 193 __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_9, res_11), res_1357); 194 195 // Rearrange pixels back into the order 0 ... 7 196 const __m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd); 197 const __m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd); 198 199 __m128i res_lo_round = 200 _mm_sra_epi32(_mm_add_epi32(res_lo, sum_round), sum_shift); 201 __m128i res_hi_round = 202 _mm_sra_epi32(_mm_add_epi32(res_hi, sum_round), sum_shift); 203 204 res_lo_round = _mm_sra_epi32(_mm_add_epi32(res_lo_round, round_const), 205 round_shift); 206 res_hi_round = _mm_sra_epi32(_mm_add_epi32(res_hi_round, round_const), 207 round_shift); 208 209 const __m128i res16 = _mm_packs_epi32(res_lo_round, res_hi_round); 210 const __m128i res = _mm_packus_epi16(res16, res16); 211 212 // Accumulate values into the destination buffer 213 __m128i *const p = (__m128i *)&dst[i * dst_stride + j]; 214 215 _mm_storel_epi64(p, res); 216 } 217 } 218 } 219 } 220 221 void av1_convolve_2d_sr_sse2(const uint8_t *src, int src_stride, uint8_t *dst, 222 int dst_stride, int w, int h, 223 const InterpFilterParams *filter_params_x, 224 const InterpFilterParams *filter_params_y, 225 const int subpel_x_qn, const int subpel_y_qn, 226 ConvolveParams *conv_params) { 227 if (filter_params_x->taps > 8) { 228 if (w < 8) { 229 av1_convolve_2d_sr_c(src, src_stride, dst, dst_stride, w, h, 230 filter_params_x, filter_params_y, subpel_x_qn, 231 subpel_y_qn, conv_params); 232 } else { 233 convolve_2d_sr_12tap_sse2(src, src_stride, dst, dst_stride, w, h, 234 filter_params_x, filter_params_y, subpel_x_qn, 235 subpel_y_qn, conv_params); 236 } 237 } else { 238 const int bd = 8; 239 240 DECLARE_ALIGNED(16, int16_t, 241 im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]); 242 int im_h = h + filter_params_y->taps - 1; 243 int im_stride = MAX_SB_SIZE; 244 int i, j; 245 const int fo_vert = filter_params_y->taps / 2 - 1; 246 const int fo_horiz = filter_params_x->taps / 2 - 1; 247 const uint8_t *const src_ptr = src - fo_vert * src_stride - fo_horiz; 248 249 const __m128i zero = _mm_setzero_si128(); 250 const int bits = 251 FILTER_BITS * 2 - conv_params->round_0 - conv_params->round_1; 252 const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; 253 254 assert(conv_params->round_0 > 0); 255 256 /* Horizontal filter */ 257 { 258 const int16_t *x_filter = av1_get_interp_filter_subpel_kernel( 259 filter_params_x, subpel_x_qn & SUBPEL_MASK); 260 const __m128i coeffs_x = _mm_loadu_si128((__m128i *)x_filter); 261 262 // coeffs 0 1 0 1 2 3 2 3 263 const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_x, coeffs_x); 264 // coeffs 4 5 4 5 6 7 6 7 265 const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_x, coeffs_x); 266 267 // coeffs 0 1 0 1 0 1 0 1 268 const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0); 269 // coeffs 2 3 2 3 2 3 2 3 270 const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0); 271 // coeffs 4 5 4 5 4 5 4 5 272 const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1); 273 // coeffs 6 7 6 7 6 7 6 7 274 const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1); 275 276 const __m128i round_const = _mm_set1_epi32( 277 (1 << (bd + FILTER_BITS - 1)) + ((1 << conv_params->round_0) >> 1)); 278 const __m128i round_shift = _mm_cvtsi32_si128(conv_params->round_0); 279 280 for (i = 0; i < im_h; ++i) { 281 for (j = 0; j < w; j += 8) { 282 const __m128i data = 283 _mm_loadu_si128((__m128i *)&src_ptr[i * src_stride + j]); 284 285 // Filter even-index pixels 286 const __m128i src_0 = _mm_unpacklo_epi8(data, zero); 287 const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01); 288 const __m128i src_2 = 289 _mm_unpacklo_epi8(_mm_srli_si128(data, 2), zero); 290 const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23); 291 const __m128i src_4 = 292 _mm_unpacklo_epi8(_mm_srli_si128(data, 4), zero); 293 const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45); 294 const __m128i src_6 = 295 _mm_unpacklo_epi8(_mm_srli_si128(data, 6), zero); 296 const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67); 297 298 __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_4), 299 _mm_add_epi32(res_2, res_6)); 300 res_even = 301 _mm_sra_epi32(_mm_add_epi32(res_even, round_const), round_shift); 302 303 // Filter odd-index pixels 304 const __m128i src_1 = 305 _mm_unpacklo_epi8(_mm_srli_si128(data, 1), zero); 306 const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01); 307 const __m128i src_3 = 308 _mm_unpacklo_epi8(_mm_srli_si128(data, 3), zero); 309 const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23); 310 const __m128i src_5 = 311 _mm_unpacklo_epi8(_mm_srli_si128(data, 5), zero); 312 const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45); 313 const __m128i src_7 = 314 _mm_unpacklo_epi8(_mm_srli_si128(data, 7), zero); 315 const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67); 316 317 __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_5), 318 _mm_add_epi32(res_3, res_7)); 319 res_odd = 320 _mm_sra_epi32(_mm_add_epi32(res_odd, round_const), round_shift); 321 322 // Pack in the column order 0, 2, 4, 6, 1, 3, 5, 7 323 __m128i res = _mm_packs_epi32(res_even, res_odd); 324 _mm_storeu_si128((__m128i *)&im_block[i * im_stride + j], res); 325 } 326 } 327 } 328 329 /* Vertical filter */ 330 { 331 const int16_t *y_filter = av1_get_interp_filter_subpel_kernel( 332 filter_params_y, subpel_y_qn & SUBPEL_MASK); 333 const __m128i coeffs_y = _mm_loadu_si128((__m128i *)y_filter); 334 335 // coeffs 0 1 0 1 2 3 2 3 336 const __m128i tmp_0 = _mm_unpacklo_epi32(coeffs_y, coeffs_y); 337 // coeffs 4 5 4 5 6 7 6 7 338 const __m128i tmp_1 = _mm_unpackhi_epi32(coeffs_y, coeffs_y); 339 340 // coeffs 0 1 0 1 0 1 0 1 341 const __m128i coeff_01 = _mm_unpacklo_epi64(tmp_0, tmp_0); 342 // coeffs 2 3 2 3 2 3 2 3 343 const __m128i coeff_23 = _mm_unpackhi_epi64(tmp_0, tmp_0); 344 // coeffs 4 5 4 5 4 5 4 5 345 const __m128i coeff_45 = _mm_unpacklo_epi64(tmp_1, tmp_1); 346 // coeffs 6 7 6 7 6 7 6 7 347 const __m128i coeff_67 = _mm_unpackhi_epi64(tmp_1, tmp_1); 348 349 const __m128i sum_round = _mm_set1_epi32( 350 (1 << offset_bits) + ((1 << conv_params->round_1) >> 1)); 351 const __m128i sum_shift = _mm_cvtsi32_si128(conv_params->round_1); 352 353 const __m128i round_const = _mm_set1_epi32( 354 ((1 << bits) >> 1) - (1 << (offset_bits - conv_params->round_1)) - 355 ((1 << (offset_bits - conv_params->round_1)) >> 1)); 356 const __m128i round_shift = _mm_cvtsi32_si128(bits); 357 358 for (i = 0; i < h; ++i) { 359 for (j = 0; j < w; j += 8) { 360 // Filter even-index pixels 361 const int16_t *data = &im_block[i * im_stride + j]; 362 const __m128i src_0 = 363 _mm_unpacklo_epi16(*(__m128i *)(data + 0 * im_stride), 364 *(__m128i *)(data + 1 * im_stride)); 365 const __m128i src_2 = 366 _mm_unpacklo_epi16(*(__m128i *)(data + 2 * im_stride), 367 *(__m128i *)(data + 3 * im_stride)); 368 const __m128i src_4 = 369 _mm_unpacklo_epi16(*(__m128i *)(data + 4 * im_stride), 370 *(__m128i *)(data + 5 * im_stride)); 371 const __m128i src_6 = 372 _mm_unpacklo_epi16(*(__m128i *)(data + 6 * im_stride), 373 *(__m128i *)(data + 7 * im_stride)); 374 375 const __m128i res_0 = _mm_madd_epi16(src_0, coeff_01); 376 const __m128i res_2 = _mm_madd_epi16(src_2, coeff_23); 377 const __m128i res_4 = _mm_madd_epi16(src_4, coeff_45); 378 const __m128i res_6 = _mm_madd_epi16(src_6, coeff_67); 379 380 const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2), 381 _mm_add_epi32(res_4, res_6)); 382 383 // Filter odd-index pixels 384 const __m128i src_1 = 385 _mm_unpackhi_epi16(*(__m128i *)(data + 0 * im_stride), 386 *(__m128i *)(data + 1 * im_stride)); 387 const __m128i src_3 = 388 _mm_unpackhi_epi16(*(__m128i *)(data + 2 * im_stride), 389 *(__m128i *)(data + 3 * im_stride)); 390 const __m128i src_5 = 391 _mm_unpackhi_epi16(*(__m128i *)(data + 4 * im_stride), 392 *(__m128i *)(data + 5 * im_stride)); 393 const __m128i src_7 = 394 _mm_unpackhi_epi16(*(__m128i *)(data + 6 * im_stride), 395 *(__m128i *)(data + 7 * im_stride)); 396 397 const __m128i res_1 = _mm_madd_epi16(src_1, coeff_01); 398 const __m128i res_3 = _mm_madd_epi16(src_3, coeff_23); 399 const __m128i res_5 = _mm_madd_epi16(src_5, coeff_45); 400 const __m128i res_7 = _mm_madd_epi16(src_7, coeff_67); 401 402 const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3), 403 _mm_add_epi32(res_5, res_7)); 404 405 // Rearrange pixels back into the order 0 ... 7 406 const __m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd); 407 const __m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd); 408 409 __m128i res_lo_round = 410 _mm_sra_epi32(_mm_add_epi32(res_lo, sum_round), sum_shift); 411 __m128i res_hi_round = 412 _mm_sra_epi32(_mm_add_epi32(res_hi, sum_round), sum_shift); 413 414 res_lo_round = _mm_sra_epi32(_mm_add_epi32(res_lo_round, round_const), 415 round_shift); 416 res_hi_round = _mm_sra_epi32(_mm_add_epi32(res_hi_round, round_const), 417 round_shift); 418 419 const __m128i res16 = _mm_packs_epi32(res_lo_round, res_hi_round); 420 const __m128i res = _mm_packus_epi16(res16, res16); 421 422 // Accumulate values into the destination buffer 423 __m128i *const p = (__m128i *)&dst[i * dst_stride + j]; 424 425 if (w == 2) { 426 *(uint16_t *)p = (uint16_t)_mm_cvtsi128_si32(res); 427 } else if (w == 4) { 428 *(int *)p = _mm_cvtsi128_si32(res); 429 } else { 430 _mm_storel_epi64(p, res); 431 } 432 } 433 } 434 } 435 } 436 } 437 438 void av1_dist_wtd_convolve_2d_copy_sse2(const uint8_t *src, int src_stride, 439 uint8_t *dst0, int dst_stride0, int w, 440 int h, ConvolveParams *conv_params) { 441 const int bd = 8; 442 CONV_BUF_TYPE *dst = conv_params->dst; 443 int dst_stride = conv_params->dst_stride; 444 445 const int bits = 446 FILTER_BITS * 2 - conv_params->round_1 - conv_params->round_0; 447 const int do_average = conv_params->do_average; 448 const int use_dist_wtd_comp_avg = conv_params->use_dist_wtd_comp_avg; 449 const __m128i zero = _mm_setzero_si128(); 450 const __m128i left_shift = _mm_cvtsi32_si128(bits); 451 int i, j; 452 453 const int w0 = conv_params->fwd_offset; 454 const int w1 = conv_params->bck_offset; 455 const __m128i wt0 = _mm_set1_epi16(w0); 456 const __m128i wt1 = _mm_set1_epi16(w1); 457 const __m128i wt = _mm_unpacklo_epi16(wt0, wt1); 458 459 const int offset_0 = 460 bd + 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; 461 const int offset = (1 << offset_0) + (1 << (offset_0 - 1)); 462 const __m128i offset_const = _mm_set1_epi16(offset); 463 const int rounding_shift = 464 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; 465 const __m128i rounding_const = _mm_set1_epi16((1 << rounding_shift) >> 1); 466 467 assert((w % 4) == 0); 468 469 if (!(w % 16)) { 470 for (i = 0; i < h; ++i) { 471 for (j = 0; j < w; j += 16) { 472 const __m128i d8 = _mm_loadu_si128((__m128i *)&src[j]); 473 474 const __m128i d16_lo = _mm_unpacklo_epi8(d8, zero); 475 const __m128i d16_hi = _mm_unpackhi_epi8(d8, zero); 476 477 const __m128i res_lo = _mm_sll_epi16(d16_lo, left_shift); 478 const __m128i res_unsigned_lo = _mm_add_epi16(res_lo, offset_const); 479 480 const __m128i res_hi = _mm_sll_epi16(d16_hi, left_shift); 481 const __m128i res_unsigned_hi = _mm_add_epi16(res_hi, offset_const); 482 483 if (do_average) { 484 const __m128i data_ref_0_lo = _mm_loadu_si128((__m128i *)(&dst[j])); 485 const __m128i data_ref_0_hi = 486 _mm_loadu_si128((__m128i *)(&dst[j + 8])); 487 488 const __m128i comp_avg_res_lo = comp_avg( 489 &data_ref_0_lo, &res_unsigned_lo, &wt, use_dist_wtd_comp_avg); 490 491 const __m128i round_result_lo = convolve_rounding( 492 &comp_avg_res_lo, &offset_const, &rounding_const, rounding_shift); 493 494 const __m128i comp_avg_res_hi = comp_avg( 495 &data_ref_0_hi, &res_unsigned_hi, &wt, use_dist_wtd_comp_avg); 496 497 const __m128i round_result_hi = convolve_rounding( 498 &comp_avg_res_hi, &offset_const, &rounding_const, rounding_shift); 499 500 const __m128i res_8 = 501 _mm_packus_epi16(round_result_lo, round_result_hi); 502 503 _mm_store_si128((__m128i *)(&dst0[j]), res_8); 504 } else { 505 _mm_store_si128((__m128i *)(&dst[j]), res_unsigned_lo); 506 _mm_store_si128((__m128i *)(&dst[j + 8]), res_unsigned_hi); 507 } 508 } 509 src += src_stride; 510 dst += dst_stride; 511 dst0 += dst_stride0; 512 } 513 } else { 514 for (i = 0; i < h; ++i) { 515 for (j = 0; j < w; j += 8) { 516 const __m128i d8 = _mm_loadl_epi64((__m128i *)&src[j]); 517 const __m128i d16_0 = _mm_unpacklo_epi8(d8, zero); 518 519 const __m128i res = _mm_sll_epi16(d16_0, left_shift); 520 const __m128i res_unsigned = _mm_add_epi16(res, offset_const); 521 522 if (do_average) { 523 const __m128i data_ref_0 = _mm_loadu_si128((__m128i *)(&dst[j])); 524 525 const __m128i comp_avg_res = 526 comp_avg(&data_ref_0, &res_unsigned, &wt, use_dist_wtd_comp_avg); 527 528 const __m128i round_result = convolve_rounding( 529 &comp_avg_res, &offset_const, &rounding_const, rounding_shift); 530 531 const __m128i res_8 = _mm_packus_epi16(round_result, round_result); 532 533 if (w > 4) 534 _mm_storel_epi64((__m128i *)(&dst0[j]), res_8); 535 else 536 *(int *)(&dst0[j]) = _mm_cvtsi128_si32(res_8); 537 } else { 538 _mm_store_si128((__m128i *)(&dst[j]), res_unsigned); 539 } 540 } 541 src += src_stride; 542 dst += dst_stride; 543 dst0 += dst_stride0; 544 } 545 } 546 }