Philipp Maier | e8ae9fc | 2017-03-20 12:08:42 +0100 | [diff] [blame] | 1 | /* |
| 2 | * SSE Convolution |
| 3 | * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc> |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This library is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with this library; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #include <malloc.h> |
| 21 | #include <string.h> |
| 22 | #include <stdio.h> |
| 23 | #include "convolve_sse_3.h" |
| 24 | |
| 25 | #ifdef HAVE_CONFIG_H |
| 26 | #include "config.h" |
| 27 | #endif |
| 28 | |
| 29 | #ifdef HAVE_SSE3 |
| 30 | #include <xmmintrin.h> |
| 31 | #include <pmmintrin.h> |
| 32 | |
| 33 | /* 4-tap SSE complex-real convolution */ |
| 34 | void sse_conv_real4(const float *x, int x_len, |
| 35 | const float *h, int h_len, |
| 36 | float *y, int y_len, |
| 37 | int start, int len, int step, int offset) |
| 38 | { |
| 39 | /* NOTE: The parameter list of this function has to match the parameter |
| 40 | * list of _base_convolve_real() in convolve_base.c. This specific |
| 41 | * implementation, ignores some of the parameters of |
| 42 | * _base_convolve_complex(), which are: x_len, y_len, offset, step */ |
| 43 | |
| 44 | __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| 45 | |
| 46 | const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| 47 | |
| 48 | /* Load (aligned) filter taps */ |
| 49 | m0 = _mm_load_ps(&h[0]); |
| 50 | m1 = _mm_load_ps(&h[4]); |
| 51 | m7 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 52 | |
| 53 | for (int i = 0; i < len; i++) { |
| 54 | /* Load (unaligned) input data */ |
| 55 | m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| 56 | m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| 57 | m2 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 58 | m3 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 59 | |
| 60 | /* Quad multiply */ |
| 61 | m4 = _mm_mul_ps(m2, m7); |
| 62 | m5 = _mm_mul_ps(m3, m7); |
| 63 | |
| 64 | /* Sum and store */ |
| 65 | m6 = _mm_hadd_ps(m4, m5); |
| 66 | m0 = _mm_hadd_ps(m6, m6); |
| 67 | |
| 68 | _mm_store_ss(&y[2 * i + 0], m0); |
| 69 | m0 = _mm_shuffle_ps(m0, m0, _MM_SHUFFLE(0, 3, 2, 1)); |
| 70 | _mm_store_ss(&y[2 * i + 1], m0); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | /* 8-tap SSE complex-real convolution */ |
| 75 | void sse_conv_real8(const float *x, int x_len, |
| 76 | const float *h, int h_len, |
| 77 | float *y, int y_len, |
| 78 | int start, int len, int step, int offset) |
| 79 | { |
| 80 | /* See NOTE in sse_conv_real4() */ |
| 81 | |
| 82 | __m128 m0, m1, m2, m3, m4, m5, m6, m7, m8, m9; |
| 83 | |
| 84 | const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| 85 | |
| 86 | /* Load (aligned) filter taps */ |
| 87 | m0 = _mm_load_ps(&h[0]); |
| 88 | m1 = _mm_load_ps(&h[4]); |
| 89 | m2 = _mm_load_ps(&h[8]); |
| 90 | m3 = _mm_load_ps(&h[12]); |
| 91 | |
| 92 | m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 93 | m5 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 94 | |
| 95 | for (int i = 0; i < len; i++) { |
| 96 | /* Load (unaligned) input data */ |
| 97 | m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| 98 | m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| 99 | m2 = _mm_loadu_ps(&_x[2 * i + 8]); |
| 100 | m3 = _mm_loadu_ps(&_x[2 * i + 12]); |
| 101 | |
| 102 | m6 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 103 | m7 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 104 | m8 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 105 | m9 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| 106 | |
| 107 | /* Quad multiply */ |
| 108 | m6 = _mm_mul_ps(m6, m4); |
| 109 | m7 = _mm_mul_ps(m7, m4); |
| 110 | m8 = _mm_mul_ps(m8, m5); |
| 111 | m9 = _mm_mul_ps(m9, m5); |
| 112 | |
| 113 | /* Sum and store */ |
| 114 | m6 = _mm_add_ps(m6, m8); |
| 115 | m7 = _mm_add_ps(m7, m9); |
| 116 | m6 = _mm_hadd_ps(m6, m7); |
| 117 | m6 = _mm_hadd_ps(m6, m6); |
| 118 | |
| 119 | _mm_store_ss(&y[2 * i + 0], m6); |
| 120 | m6 = _mm_shuffle_ps(m6, m6, _MM_SHUFFLE(0, 3, 2, 1)); |
| 121 | _mm_store_ss(&y[2 * i + 1], m6); |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | /* 12-tap SSE complex-real convolution */ |
| 126 | void sse_conv_real12(const float *x, int x_len, |
| 127 | const float *h, int h_len, |
| 128 | float *y, int y_len, |
| 129 | int start, int len, int step, int offset) |
| 130 | { |
| 131 | /* See NOTE in sse_conv_real4() */ |
| 132 | |
| 133 | __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| 134 | __m128 m8, m9, m10, m11, m12, m13, m14; |
| 135 | |
| 136 | const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| 137 | |
| 138 | /* Load (aligned) filter taps */ |
| 139 | m0 = _mm_load_ps(&h[0]); |
| 140 | m1 = _mm_load_ps(&h[4]); |
| 141 | m2 = _mm_load_ps(&h[8]); |
| 142 | m3 = _mm_load_ps(&h[12]); |
| 143 | m4 = _mm_load_ps(&h[16]); |
| 144 | m5 = _mm_load_ps(&h[20]); |
| 145 | |
| 146 | m12 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 147 | m13 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 148 | m14 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(0, 2, 0, 2)); |
| 149 | |
| 150 | for (int i = 0; i < len; i++) { |
| 151 | /* Load (unaligned) input data */ |
| 152 | m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| 153 | m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| 154 | m2 = _mm_loadu_ps(&_x[2 * i + 8]); |
| 155 | m3 = _mm_loadu_ps(&_x[2 * i + 12]); |
| 156 | |
| 157 | m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 158 | m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 159 | m6 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 160 | m7 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| 161 | |
| 162 | m0 = _mm_loadu_ps(&_x[2 * i + 16]); |
| 163 | m1 = _mm_loadu_ps(&_x[2 * i + 20]); |
| 164 | |
| 165 | m8 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 166 | m9 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 167 | |
| 168 | /* Quad multiply */ |
| 169 | m0 = _mm_mul_ps(m4, m12); |
| 170 | m1 = _mm_mul_ps(m5, m12); |
| 171 | m2 = _mm_mul_ps(m6, m13); |
| 172 | m3 = _mm_mul_ps(m7, m13); |
| 173 | m4 = _mm_mul_ps(m8, m14); |
| 174 | m5 = _mm_mul_ps(m9, m14); |
| 175 | |
| 176 | /* Sum and store */ |
| 177 | m8 = _mm_add_ps(m0, m2); |
| 178 | m9 = _mm_add_ps(m1, m3); |
| 179 | m10 = _mm_add_ps(m8, m4); |
| 180 | m11 = _mm_add_ps(m9, m5); |
| 181 | |
| 182 | m2 = _mm_hadd_ps(m10, m11); |
| 183 | m3 = _mm_hadd_ps(m2, m2); |
| 184 | |
| 185 | _mm_store_ss(&y[2 * i + 0], m3); |
| 186 | m3 = _mm_shuffle_ps(m3, m3, _MM_SHUFFLE(0, 3, 2, 1)); |
| 187 | _mm_store_ss(&y[2 * i + 1], m3); |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | /* 16-tap SSE complex-real convolution */ |
| 192 | void sse_conv_real16(const float *x, int x_len, |
| 193 | const float *h, int h_len, |
| 194 | float *y, int y_len, |
| 195 | int start, int len, int step, int offset) |
| 196 | { |
| 197 | /* See NOTE in sse_conv_real4() */ |
| 198 | |
| 199 | __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| 200 | __m128 m8, m9, m10, m11, m12, m13, m14, m15; |
| 201 | |
| 202 | const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| 203 | |
| 204 | /* Load (aligned) filter taps */ |
| 205 | m0 = _mm_load_ps(&h[0]); |
| 206 | m1 = _mm_load_ps(&h[4]); |
| 207 | m2 = _mm_load_ps(&h[8]); |
| 208 | m3 = _mm_load_ps(&h[12]); |
| 209 | |
| 210 | m4 = _mm_load_ps(&h[16]); |
| 211 | m5 = _mm_load_ps(&h[20]); |
| 212 | m6 = _mm_load_ps(&h[24]); |
| 213 | m7 = _mm_load_ps(&h[28]); |
| 214 | |
| 215 | m12 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 216 | m13 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 217 | m14 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(0, 2, 0, 2)); |
| 218 | m15 = _mm_shuffle_ps(m6, m7, _MM_SHUFFLE(0, 2, 0, 2)); |
| 219 | |
| 220 | for (int i = 0; i < len; i++) { |
| 221 | /* Load (unaligned) input data */ |
| 222 | m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| 223 | m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| 224 | m2 = _mm_loadu_ps(&_x[2 * i + 8]); |
| 225 | m3 = _mm_loadu_ps(&_x[2 * i + 12]); |
| 226 | |
| 227 | m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 228 | m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 229 | m6 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 230 | m7 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| 231 | |
| 232 | m0 = _mm_loadu_ps(&_x[2 * i + 16]); |
| 233 | m1 = _mm_loadu_ps(&_x[2 * i + 20]); |
| 234 | m2 = _mm_loadu_ps(&_x[2 * i + 24]); |
| 235 | m3 = _mm_loadu_ps(&_x[2 * i + 28]); |
| 236 | |
| 237 | m8 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 238 | m9 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 239 | m10 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 240 | m11 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| 241 | |
| 242 | /* Quad multiply */ |
| 243 | m0 = _mm_mul_ps(m4, m12); |
| 244 | m1 = _mm_mul_ps(m5, m12); |
| 245 | m2 = _mm_mul_ps(m6, m13); |
| 246 | m3 = _mm_mul_ps(m7, m13); |
| 247 | |
| 248 | m4 = _mm_mul_ps(m8, m14); |
| 249 | m5 = _mm_mul_ps(m9, m14); |
| 250 | m6 = _mm_mul_ps(m10, m15); |
| 251 | m7 = _mm_mul_ps(m11, m15); |
| 252 | |
| 253 | /* Sum and store */ |
| 254 | m8 = _mm_add_ps(m0, m2); |
| 255 | m9 = _mm_add_ps(m1, m3); |
| 256 | m10 = _mm_add_ps(m4, m6); |
| 257 | m11 = _mm_add_ps(m5, m7); |
| 258 | |
| 259 | m0 = _mm_add_ps(m8, m10); |
| 260 | m1 = _mm_add_ps(m9, m11); |
| 261 | m2 = _mm_hadd_ps(m0, m1); |
| 262 | m3 = _mm_hadd_ps(m2, m2); |
| 263 | |
| 264 | _mm_store_ss(&y[2 * i + 0], m3); |
| 265 | m3 = _mm_shuffle_ps(m3, m3, _MM_SHUFFLE(0, 3, 2, 1)); |
| 266 | _mm_store_ss(&y[2 * i + 1], m3); |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | /* 20-tap SSE complex-real convolution */ |
| 271 | void sse_conv_real20(const float *x, int x_len, |
| 272 | const float *h, int h_len, |
| 273 | float *y, int y_len, |
| 274 | int start, int len, int step, int offset) |
| 275 | { |
| 276 | /* See NOTE in sse_conv_real4() */ |
| 277 | |
| 278 | __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| 279 | __m128 m8, m9, m11, m12, m13, m14, m15; |
| 280 | |
| 281 | const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| 282 | |
| 283 | /* Load (aligned) filter taps */ |
| 284 | m0 = _mm_load_ps(&h[0]); |
| 285 | m1 = _mm_load_ps(&h[4]); |
| 286 | m2 = _mm_load_ps(&h[8]); |
| 287 | m3 = _mm_load_ps(&h[12]); |
| 288 | m4 = _mm_load_ps(&h[16]); |
| 289 | m5 = _mm_load_ps(&h[20]); |
| 290 | m6 = _mm_load_ps(&h[24]); |
| 291 | m7 = _mm_load_ps(&h[28]); |
| 292 | m8 = _mm_load_ps(&h[32]); |
| 293 | m9 = _mm_load_ps(&h[36]); |
| 294 | |
| 295 | m11 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 296 | m12 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 297 | m13 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(0, 2, 0, 2)); |
| 298 | m14 = _mm_shuffle_ps(m6, m7, _MM_SHUFFLE(0, 2, 0, 2)); |
| 299 | m15 = _mm_shuffle_ps(m8, m9, _MM_SHUFFLE(0, 2, 0, 2)); |
| 300 | |
| 301 | for (int i = 0; i < len; i++) { |
| 302 | /* Multiply-accumulate first 12 taps */ |
| 303 | m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| 304 | m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| 305 | m2 = _mm_loadu_ps(&_x[2 * i + 8]); |
| 306 | m3 = _mm_loadu_ps(&_x[2 * i + 12]); |
| 307 | m4 = _mm_loadu_ps(&_x[2 * i + 16]); |
| 308 | m5 = _mm_loadu_ps(&_x[2 * i + 20]); |
| 309 | |
| 310 | m6 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 311 | m7 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 312 | m8 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 313 | m9 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| 314 | m0 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(0, 2, 0, 2)); |
| 315 | m1 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(1, 3, 1, 3)); |
| 316 | |
| 317 | m2 = _mm_mul_ps(m6, m11); |
| 318 | m3 = _mm_mul_ps(m7, m11); |
| 319 | m4 = _mm_mul_ps(m8, m12); |
| 320 | m5 = _mm_mul_ps(m9, m12); |
| 321 | m6 = _mm_mul_ps(m0, m13); |
| 322 | m7 = _mm_mul_ps(m1, m13); |
| 323 | |
| 324 | m0 = _mm_add_ps(m2, m4); |
| 325 | m1 = _mm_add_ps(m3, m5); |
| 326 | m8 = _mm_add_ps(m0, m6); |
| 327 | m9 = _mm_add_ps(m1, m7); |
| 328 | |
| 329 | /* Multiply-accumulate last 8 taps */ |
| 330 | m0 = _mm_loadu_ps(&_x[2 * i + 24]); |
| 331 | m1 = _mm_loadu_ps(&_x[2 * i + 28]); |
| 332 | m2 = _mm_loadu_ps(&_x[2 * i + 32]); |
| 333 | m3 = _mm_loadu_ps(&_x[2 * i + 36]); |
| 334 | |
| 335 | m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 336 | m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 337 | m6 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 338 | m7 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| 339 | |
| 340 | m0 = _mm_mul_ps(m4, m14); |
| 341 | m1 = _mm_mul_ps(m5, m14); |
| 342 | m2 = _mm_mul_ps(m6, m15); |
| 343 | m3 = _mm_mul_ps(m7, m15); |
| 344 | |
| 345 | m4 = _mm_add_ps(m0, m2); |
| 346 | m5 = _mm_add_ps(m1, m3); |
| 347 | |
| 348 | /* Final sum and store */ |
| 349 | m0 = _mm_add_ps(m8, m4); |
| 350 | m1 = _mm_add_ps(m9, m5); |
| 351 | m2 = _mm_hadd_ps(m0, m1); |
| 352 | m3 = _mm_hadd_ps(m2, m2); |
| 353 | |
| 354 | _mm_store_ss(&y[2 * i + 0], m3); |
| 355 | m3 = _mm_shuffle_ps(m3, m3, _MM_SHUFFLE(0, 3, 2, 1)); |
| 356 | _mm_store_ss(&y[2 * i + 1], m3); |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | /* 4*N-tap SSE complex-real convolution */ |
| 361 | void sse_conv_real4n(const float *x, int x_len, |
| 362 | const float *h, int h_len, |
| 363 | float *y, int y_len, |
| 364 | int start, int len, int step, int offset) |
| 365 | { |
| 366 | /* See NOTE in sse_conv_real4() */ |
| 367 | |
| 368 | __m128 m0, m1, m2, m4, m5, m6, m7; |
| 369 | |
| 370 | const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| 371 | |
| 372 | for (int i = 0; i < len; i++) { |
| 373 | /* Zero */ |
| 374 | m6 = _mm_setzero_ps(); |
| 375 | m7 = _mm_setzero_ps(); |
| 376 | |
| 377 | for (int n = 0; n < h_len / 4; n++) { |
| 378 | /* Load (aligned) filter taps */ |
| 379 | m0 = _mm_load_ps(&h[8 * n + 0]); |
| 380 | m1 = _mm_load_ps(&h[8 * n + 4]); |
| 381 | m2 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 382 | |
| 383 | /* Load (unaligned) input data */ |
| 384 | m0 = _mm_loadu_ps(&_x[2 * i + 8 * n + 0]); |
| 385 | m1 = _mm_loadu_ps(&_x[2 * i + 8 * n + 4]); |
| 386 | m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 387 | m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 388 | |
| 389 | /* Quad multiply */ |
| 390 | m0 = _mm_mul_ps(m2, m4); |
| 391 | m1 = _mm_mul_ps(m2, m5); |
| 392 | |
| 393 | /* Accumulate */ |
| 394 | m6 = _mm_add_ps(m6, m0); |
| 395 | m7 = _mm_add_ps(m7, m1); |
| 396 | } |
| 397 | |
| 398 | m0 = _mm_hadd_ps(m6, m7); |
| 399 | m0 = _mm_hadd_ps(m0, m0); |
| 400 | |
| 401 | _mm_store_ss(&y[2 * i + 0], m0); |
| 402 | m0 = _mm_shuffle_ps(m0, m0, _MM_SHUFFLE(0, 3, 2, 1)); |
| 403 | _mm_store_ss(&y[2 * i + 1], m0); |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | /* 4*N-tap SSE complex-complex convolution */ |
| 408 | void sse_conv_cmplx_4n(const float *x, int x_len, |
| 409 | const float *h, int h_len, |
| 410 | float *y, int y_len, |
| 411 | int start, int len, int step, int offset) |
| 412 | { |
| 413 | /* NOTE: The parameter list of this function has to match the parameter |
| 414 | * list of _base_convolve_complex() in convolve_base.c. This specific |
| 415 | * implementation, ignores some of the parameters of |
| 416 | * _base_convolve_complex(), which are: x_len, y_len, offset, step. */ |
| 417 | |
| 418 | __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| 419 | |
| 420 | const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| 421 | |
| 422 | for (int i = 0; i < len; i++) { |
| 423 | /* Zero */ |
| 424 | m6 = _mm_setzero_ps(); |
| 425 | m7 = _mm_setzero_ps(); |
| 426 | |
| 427 | for (int n = 0; n < h_len / 4; n++) { |
| 428 | /* Load (aligned) filter taps */ |
| 429 | m0 = _mm_load_ps(&h[8 * n + 0]); |
| 430 | m1 = _mm_load_ps(&h[8 * n + 4]); |
| 431 | m2 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 432 | m3 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 433 | |
| 434 | /* Load (unaligned) input data */ |
| 435 | m0 = _mm_loadu_ps(&_x[2 * i + 8 * n + 0]); |
| 436 | m1 = _mm_loadu_ps(&_x[2 * i + 8 * n + 4]); |
| 437 | m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 438 | m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 439 | |
| 440 | /* Quad multiply */ |
| 441 | m0 = _mm_mul_ps(m2, m4); |
| 442 | m1 = _mm_mul_ps(m3, m5); |
| 443 | |
| 444 | m2 = _mm_mul_ps(m2, m5); |
| 445 | m3 = _mm_mul_ps(m3, m4); |
| 446 | |
| 447 | /* Sum */ |
| 448 | m0 = _mm_sub_ps(m0, m1); |
| 449 | m2 = _mm_add_ps(m2, m3); |
| 450 | |
| 451 | /* Accumulate */ |
| 452 | m6 = _mm_add_ps(m6, m0); |
| 453 | m7 = _mm_add_ps(m7, m2); |
| 454 | } |
| 455 | |
| 456 | m0 = _mm_hadd_ps(m6, m7); |
| 457 | m0 = _mm_hadd_ps(m0, m0); |
| 458 | |
| 459 | _mm_store_ss(&y[2 * i + 0], m0); |
| 460 | m0 = _mm_shuffle_ps(m0, m0, _MM_SHUFFLE(0, 3, 2, 1)); |
| 461 | _mm_store_ss(&y[2 * i + 1], m0); |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | /* 8*N-tap SSE complex-complex convolution */ |
| 466 | void sse_conv_cmplx_8n(const float *x, int x_len, |
| 467 | const float *h, int h_len, |
| 468 | float *y, int y_len, |
| 469 | int start, int len, int step, int offset) |
| 470 | { |
| 471 | /* See NOTE in sse_conv_cmplx_4n() */ |
| 472 | |
| 473 | __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| 474 | __m128 m8, m9, m10, m11, m12, m13, m14, m15; |
| 475 | |
| 476 | const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| 477 | |
| 478 | for (int i = 0; i < len; i++) { |
| 479 | /* Zero */ |
| 480 | m12 = _mm_setzero_ps(); |
| 481 | m13 = _mm_setzero_ps(); |
| 482 | m14 = _mm_setzero_ps(); |
| 483 | m15 = _mm_setzero_ps(); |
| 484 | |
| 485 | for (int n = 0; n < h_len / 8; n++) { |
| 486 | /* Load (aligned) filter taps */ |
| 487 | m0 = _mm_load_ps(&h[16 * n + 0]); |
| 488 | m1 = _mm_load_ps(&h[16 * n + 4]); |
| 489 | m2 = _mm_load_ps(&h[16 * n + 8]); |
| 490 | m3 = _mm_load_ps(&h[16 * n + 12]); |
| 491 | |
| 492 | m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 493 | m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 494 | m6 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 495 | m7 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| 496 | |
| 497 | /* Load (unaligned) input data */ |
| 498 | m0 = _mm_loadu_ps(&_x[2 * i + 16 * n + 0]); |
| 499 | m1 = _mm_loadu_ps(&_x[2 * i + 16 * n + 4]); |
| 500 | m2 = _mm_loadu_ps(&_x[2 * i + 16 * n + 8]); |
| 501 | m3 = _mm_loadu_ps(&_x[2 * i + 16 * n + 12]); |
| 502 | |
| 503 | m8 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| 504 | m9 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| 505 | m10 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| 506 | m11 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| 507 | |
| 508 | /* Quad multiply */ |
| 509 | m0 = _mm_mul_ps(m4, m8); |
| 510 | m1 = _mm_mul_ps(m5, m9); |
| 511 | m2 = _mm_mul_ps(m6, m10); |
| 512 | m3 = _mm_mul_ps(m7, m11); |
| 513 | |
| 514 | m4 = _mm_mul_ps(m4, m9); |
| 515 | m5 = _mm_mul_ps(m5, m8); |
| 516 | m6 = _mm_mul_ps(m6, m11); |
| 517 | m7 = _mm_mul_ps(m7, m10); |
| 518 | |
| 519 | /* Sum */ |
| 520 | m0 = _mm_sub_ps(m0, m1); |
| 521 | m2 = _mm_sub_ps(m2, m3); |
| 522 | m4 = _mm_add_ps(m4, m5); |
| 523 | m6 = _mm_add_ps(m6, m7); |
| 524 | |
| 525 | /* Accumulate */ |
| 526 | m12 = _mm_add_ps(m12, m0); |
| 527 | m13 = _mm_add_ps(m13, m2); |
| 528 | m14 = _mm_add_ps(m14, m4); |
| 529 | m15 = _mm_add_ps(m15, m6); |
| 530 | } |
| 531 | |
| 532 | m0 = _mm_add_ps(m12, m13); |
| 533 | m1 = _mm_add_ps(m14, m15); |
| 534 | m2 = _mm_hadd_ps(m0, m1); |
| 535 | m2 = _mm_hadd_ps(m2, m2); |
| 536 | |
| 537 | _mm_store_ss(&y[2 * i + 0], m2); |
| 538 | m2 = _mm_shuffle_ps(m2, m2, _MM_SHUFFLE(0, 3, 2, 1)); |
| 539 | _mm_store_ss(&y[2 * i + 1], m2); |
| 540 | } |
| 541 | } |
| 542 | #endif |