repositories / deb_ffmpeg.git / blame
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1 | #ifndef AVCODEC_PPC_FFT_VSX_H |
| 2 | #define AVCODEC_PPC_FFT_VSX_H | |
| 3 | /* | |
| 4 | * FFT transform, optimized with VSX built-in functions | |
| 5 | * Copyright (c) 2014 Rong Yan Copyright (c) 2009 Loren Merritt | |
| 6 | * | |
| 7 | * This algorithm (though not any of the implementation details) is | |
| 8 | * based on libdjbfft by D. J. Bernstein, and fft_altivec_s.S. | |
| 9 | * | |
| 10 | * This file is part of FFmpeg. | |
| 11 | * | |
| 12 | * FFmpeg is free software; you can redistribute it and/or | |
| 13 | * modify it under the terms of the GNU Lesser General Public | |
| 14 | * License as published by the Free Software Foundation; either | |
| 15 | * version 2.1 of the License, or (at your option) any later version. | |
| 16 | * | |
| 17 | * FFmpeg is distributed in the hope that it will be useful, | |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 20 | * Lesser General Public License for more details. | |
| 21 | * | |
| 22 | * You should have received a copy of the GNU Lesser General Public | |
| 23 | * License along with FFmpeg; if not, write to the Free Software | |
| 24 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 25 | */ | |
| 26 | ||
| 27 | ||
| 28 | #include "config.h" | |
| 29 | #include "libavutil/cpu.h" | |
| 30 | #include "libavutil/ppc/types_altivec.h" | |
| 31 | #include "libavutil/ppc/util_altivec.h" | |
| 32 | #include "libavcodec/fft.h" | |
| 33 | #include "libavcodec/fft-internal.h" | |
| 34 | ||
| 35 | #if HAVE_VSX | |
| 36 | ||
| 37 | void ff_fft_calc_interleave_vsx(FFTContext *s, FFTComplex *z); | |
| 38 | void ff_fft_calc_vsx(FFTContext *s, FFTComplex *z); | |
| 39 | ||
| 40 | ||
| 41 | #define byte_2complex (2*sizeof(FFTComplex)) | |
| 42 | #define byte_4complex (4*sizeof(FFTComplex)) | |
| 43 | #define byte_6complex (6*sizeof(FFTComplex)) | |
| 44 | #define byte_8complex (8*sizeof(FFTComplex)) | |
| 45 | #define byte_10complex (10*sizeof(FFTComplex)) | |
| 46 | #define byte_12complex (12*sizeof(FFTComplex)) | |
| 47 | #define byte_14complex (14*sizeof(FFTComplex)) | |
| 48 | ||
| 49 | inline static void pass_vsx_interleave(FFTComplex *z, const FFTSample *wre, unsigned int n) | |
| 50 | { | |
| 51 | int o1 = n<<1; | |
| 52 | int o2 = n<<2; | |
| 53 | int o3 = o1+o2; | |
| 54 | int i1, i2, i3; | |
| 55 | FFTSample* out = (FFTSample*)z; | |
| 56 | const FFTSample *wim = wre+o1; | |
| 57 | vec_f vz0, vzo1, vzo2, vzo3; | |
| 58 | vec_f x0, x1, x2, x3; | |
| 59 | vec_f x4, x5, x6, x7; | |
| 60 | vec_f x8, x9, x10, x11; | |
| 61 | vec_f x12, x13, x14, x15; | |
| 62 | vec_f x16, x17, x18, x19; | |
| 63 | vec_f x20, x21, x22, x23; | |
| 64 | vec_f vz0plus1, vzo1plus1, vzo2plus1, vzo3plus1; | |
| 65 | vec_f y0, y1, y2, y3; | |
| 66 | vec_f y4, y5, y8, y9; | |
| 67 | vec_f y10, y13, y14, y15; | |
| 68 | vec_f y16, y17, y18, y19; | |
| 69 | vec_f y20, y21, y22, y23; | |
| 70 | vec_f wr1, wi1, wr0, wi0; | |
| 71 | vec_f wr2, wi2, wr3, wi3; | |
| 72 | vec_f xmulwi0, xmulwi1, ymulwi2, ymulwi3; | |
| 73 | ||
| 74 | n = n-2; | |
| 75 | i1 = o1*sizeof(FFTComplex); | |
| 76 | i2 = o2*sizeof(FFTComplex); | |
| 77 | i3 = o3*sizeof(FFTComplex); | |
| 78 | vzo2 = vec_ld(i2, &(out[0])); // zo2.r zo2.i z(o2+1).r z(o2+1).i | |
| 79 | vzo2plus1 = vec_ld(i2+16, &(out[0])); | |
| 80 | vzo3 = vec_ld(i3, &(out[0])); // zo3.r zo3.i z(o3+1).r z(o3+1).i | |
| 81 | vzo3plus1 = vec_ld(i3+16, &(out[0])); | |
| 82 | vz0 = vec_ld(0, &(out[0])); // z0.r z0.i z1.r z1.i | |
| 83 | vz0plus1 = vec_ld(16, &(out[0])); | |
| 84 | vzo1 = vec_ld(i1, &(out[0])); // zo1.r zo1.i z(o1+1).r z(o1+1).i | |
| 85 | vzo1plus1 = vec_ld(i1+16, &(out[0])); | |
| 86 | ||
| 87 | x0 = vec_add(vzo2, vzo3); | |
| 88 | x1 = vec_sub(vzo2, vzo3); | |
| 89 | y0 = vec_add(vzo2plus1, vzo3plus1); | |
| 90 | y1 = vec_sub(vzo2plus1, vzo3plus1); | |
| 91 | ||
| 92 | wr1 = vec_splats(wre[1]); | |
| 93 | wi1 = vec_splats(wim[-1]); | |
| 94 | wi2 = vec_splats(wim[-2]); | |
| 95 | wi3 = vec_splats(wim[-3]); | |
| 96 | wr2 = vec_splats(wre[2]); | |
| 97 | wr3 = vec_splats(wre[3]); | |
| 98 | ||
| 99 | x2 = vec_perm(x0, x1, vcprm(2,s2,3,s3)); | |
| 100 | x3 = vec_perm(x0, x1, vcprm(s3,3,s2,2)); | |
| 101 | ||
| 102 | y4 = vec_perm(y0, y1, vcprm(s1,1,s0,0)); | |
| 103 | y5 = vec_perm(y0, y1, vcprm(s3,3,s2,2)); | |
| 104 | y2 = vec_perm(y0, y1, vcprm(0,s0,1,s1)); | |
| 105 | y3 = vec_perm(y0, y1, vcprm(2,s2,3,s3)); | |
| 106 | ||
| 107 | ymulwi2 = vec_mul(y4, wi2); | |
| 108 | ymulwi3 = vec_mul(y5, wi3); | |
| 109 | x4 = vec_mul(x2, wr1); | |
| 110 | x5 = vec_mul(x3, wi1); | |
| 111 | y8 = vec_madd(y2, wr2, ymulwi2); | |
| 112 | y9 = vec_msub(y2, wr2, ymulwi2); | |
| 113 | x6 = vec_add(x4, x5); | |
| 114 | x7 = vec_sub(x4, x5); | |
| 115 | y13 = vec_madd(y3, wr3, ymulwi3); | |
| 116 | y14 = vec_msub(y3, wr3, ymulwi3); | |
| 117 | ||
| 118 | x8 = vec_perm(x6, x7, vcprm(0,1,s2,s3)); | |
| 119 | y10 = vec_perm(y8, y9, vcprm(0,1,s2,s3)); | |
| 120 | y15 = vec_perm(y13, y14, vcprm(0,1,s2,s3)); | |
| 121 | ||
| 122 | x9 = vec_perm(x0, x8, vcprm(0,1,s0,s2)); | |
| 123 | x10 = vec_perm(x1, x8, vcprm(1,0,s3,s1)); | |
| 124 | ||
| 125 | y16 = vec_perm(y10, y15, vcprm(0,2,s0,s2)); | |
| 126 | y17 = vec_perm(y10, y15, vcprm(3,1,s3,s1)); | |
| 127 | ||
| 128 | x11 = vec_add(vz0, x9); | |
| 129 | x12 = vec_sub(vz0, x9); | |
| 130 | x13 = vec_add(vzo1, x10); | |
| 131 | x14 = vec_sub(vzo1, x10); | |
| 132 | ||
| 133 | y18 = vec_add(vz0plus1, y16); | |
| 134 | y19 = vec_sub(vz0plus1, y16); | |
| 135 | y20 = vec_add(vzo1plus1, y17); | |
| 136 | y21 = vec_sub(vzo1plus1, y17); | |
| 137 | ||
| 138 | x15 = vec_perm(x13, x14, vcprm(0,s1,2,s3)); | |
| 139 | x16 = vec_perm(x13, x14, vcprm(s0,1,s2,3)); | |
| 140 | y22 = vec_perm(y20, y21, vcprm(0,s1,2,s3)); | |
| 141 | y23 = vec_perm(y20, y21, vcprm(s0,1,s2,3)); | |
| 142 | ||
| 143 | ||
| 144 | vec_st(x11, 0, &(out[0])); | |
| 145 | vec_st(y18, 16, &(out[0])); | |
| 146 | vec_st(x15, i1, &(out[0])); | |
| 147 | vec_st(y22, i1+16, &(out[0])); | |
| 148 | vec_st(x12, i2, &(out[0])); | |
| 149 | vec_st(y19, i2+16, &(out[0])); | |
| 150 | vec_st(x16, i3, &(out[0])); | |
| 151 | vec_st(y23, i3+16, &(out[0])); | |
| 152 | ||
| 153 | do { | |
| 154 | out += 8; | |
| 155 | wre += 4; | |
| 156 | wim -= 4; | |
| 157 | wr0 = vec_splats(wre[0]); | |
| 158 | wr1 = vec_splats(wre[1]); | |
| 159 | wi0 = vec_splats(wim[0]); | |
| 160 | wi1 = vec_splats(wim[-1]); | |
| 161 | ||
| 162 | wr2 = vec_splats(wre[2]); | |
| 163 | wr3 = vec_splats(wre[3]); | |
| 164 | wi2 = vec_splats(wim[-2]); | |
| 165 | wi3 = vec_splats(wim[-3]); | |
| 166 | ||
| 167 | vzo2 = vec_ld(i2, &(out[0])); // zo2.r zo2.i z(o2+1).r z(o2+1).i | |
| 168 | vzo2plus1 = vec_ld(i2+16, &(out[0])); | |
| 169 | vzo3 = vec_ld(i3, &(out[0])); // zo3.r zo3.i z(o3+1).r z(o3+1).i | |
| 170 | vzo3plus1 = vec_ld(i3+16, &(out[0])); | |
| 171 | vz0 = vec_ld(0, &(out[0])); // z0.r z0.i z1.r z1.i | |
| 172 | vz0plus1 = vec_ld(16, &(out[0])); | |
| 173 | vzo1 = vec_ld(i1, &(out[0])); // zo1.r zo1.i z(o1+1).r z(o1+1).i | |
| 174 | vzo1plus1 = vec_ld(i1+16, &(out[0])); | |
| 175 | ||
| 176 | x0 = vec_add(vzo2, vzo3); | |
| 177 | x1 = vec_sub(vzo2, vzo3); | |
| 178 | ||
| 179 | y0 = vec_add(vzo2plus1, vzo3plus1); | |
| 180 | y1 = vec_sub(vzo2plus1, vzo3plus1); | |
| 181 | ||
| 182 | x4 = vec_perm(x0, x1, vcprm(s1,1,s0,0)); | |
| 183 | x5 = vec_perm(x0, x1, vcprm(s3,3,s2,2)); | |
| 184 | x2 = vec_perm(x0, x1, vcprm(0,s0,1,s1)); | |
| 185 | x3 = vec_perm(x0, x1, vcprm(2,s2,3,s3)); | |
| 186 | ||
| 187 | y2 = vec_perm(y0, y1, vcprm(0,s0,1,s1)); | |
| 188 | y3 = vec_perm(y0, y1, vcprm(2,s2,3,s3)); | |
| 189 | xmulwi0 = vec_mul(x4, wi0); | |
| 190 | xmulwi1 = vec_mul(x5, wi1); | |
| 191 | ||
| 192 | y4 = vec_perm(y0, y1, vcprm(s1,1,s0,0)); | |
| 193 | y5 = vec_perm(y0, y1, vcprm(s3,3,s2,2)); | |
| 194 | ||
| 195 | x8 = vec_madd(x2, wr0, xmulwi0); | |
| 196 | x9 = vec_msub(x2, wr0, xmulwi0); | |
| 197 | ymulwi2 = vec_mul(y4, wi2); | |
| 198 | ymulwi3 = vec_mul(y5, wi3); | |
| 199 | ||
| 200 | x13 = vec_madd(x3, wr1, xmulwi1); | |
| 201 | x14 = vec_msub(x3, wr1, xmulwi1); | |
| 202 | ||
| 203 | y8 = vec_madd(y2, wr2, ymulwi2); | |
| 204 | y9 = vec_msub(y2, wr2, ymulwi2); | |
| 205 | y13 = vec_madd(y3, wr3, ymulwi3); | |
| 206 | y14 = vec_msub(y3, wr3, ymulwi3); | |
| 207 | ||
| 208 | x10 = vec_perm(x8, x9, vcprm(0,1,s2,s3)); | |
| 209 | x15 = vec_perm(x13, x14, vcprm(0,1,s2,s3)); | |
| 210 | ||
| 211 | y10 = vec_perm(y8, y9, vcprm(0,1,s2,s3)); | |
| 212 | y15 = vec_perm(y13, y14, vcprm(0,1,s2,s3)); | |
| 213 | ||
| 214 | x16 = vec_perm(x10, x15, vcprm(0,2,s0,s2)); | |
| 215 | x17 = vec_perm(x10, x15, vcprm(3,1,s3,s1)); | |
| 216 | ||
| 217 | y16 = vec_perm(y10, y15, vcprm(0,2,s0,s2)); | |
| 218 | y17 = vec_perm(y10, y15, vcprm(3,1,s3,s1)); | |
| 219 | ||
| 220 | x18 = vec_add(vz0, x16); | |
| 221 | x19 = vec_sub(vz0, x16); | |
| 222 | x20 = vec_add(vzo1, x17); | |
| 223 | x21 = vec_sub(vzo1, x17); | |
| 224 | ||
| 225 | y18 = vec_add(vz0plus1, y16); | |
| 226 | y19 = vec_sub(vz0plus1, y16); | |
| 227 | y20 = vec_add(vzo1plus1, y17); | |
| 228 | y21 = vec_sub(vzo1plus1, y17); | |
| 229 | ||
| 230 | x22 = vec_perm(x20, x21, vcprm(0,s1,2,s3)); | |
| 231 | x23 = vec_perm(x20, x21, vcprm(s0,1,s2,3)); | |
| 232 | ||
| 233 | y22 = vec_perm(y20, y21, vcprm(0,s1,2,s3)); | |
| 234 | y23 = vec_perm(y20, y21, vcprm(s0,1,s2,3)); | |
| 235 | ||
| 236 | vec_st(x18, 0, &(out[0])); | |
| 237 | vec_st(y18, 16, &(out[0])); | |
| 238 | vec_st(x22, i1, &(out[0])); | |
| 239 | vec_st(y22, i1+16, &(out[0])); | |
| 240 | vec_st(x19, i2, &(out[0])); | |
| 241 | vec_st(y19, i2+16, &(out[0])); | |
| 242 | vec_st(x23, i3, &(out[0])); | |
| 243 | vec_st(y23, i3+16, &(out[0])); | |
| 244 | } while (n-=2); | |
| 245 | } | |
| 246 | ||
| 247 | inline static void fft2_vsx_interleave(FFTComplex *z) | |
| 248 | { | |
| 249 | FFTSample r1, i1; | |
| 250 | ||
| 251 | r1 = z[0].re - z[1].re; | |
| 252 | z[0].re += z[1].re; | |
| 253 | z[1].re = r1; | |
| 254 | ||
| 255 | i1 = z[0].im - z[1].im; | |
| 256 | z[0].im += z[1].im; | |
| 257 | z[1].im = i1; | |
| 258 | } | |
| 259 | ||
| 260 | inline static void fft4_vsx_interleave(FFTComplex *z) | |
| 261 | { | |
| 262 | vec_f a, b, c, d; | |
| 263 | float* out= (float*)z; | |
| 264 | a = vec_ld(0, &(out[0])); | |
| 265 | b = vec_ld(byte_2complex, &(out[0])); | |
| 266 | ||
| 267 | c = vec_perm(a, b, vcprm(0,1,s2,s1)); | |
| 268 | d = vec_perm(a, b, vcprm(2,3,s0,s3)); | |
| 269 | a = vec_add(c, d); | |
| 270 | b = vec_sub(c, d); | |
| 271 | ||
| 272 | c = vec_perm(a, b, vcprm(0,1,s0,s1)); | |
| 273 | d = vec_perm(a, b, vcprm(2,3,s3,s2)); | |
| 274 | ||
| 275 | a = vec_add(c, d); | |
| 276 | b = vec_sub(c, d); | |
| 277 | vec_st(a, 0, &(out[0])); | |
| 278 | vec_st(b, byte_2complex, &(out[0])); | |
| 279 | } | |
| 280 | ||
| 281 | inline static void fft8_vsx_interleave(FFTComplex *z) | |
| 282 | { | |
| 283 | vec_f vz0, vz1, vz2, vz3; | |
| 284 | vec_f x0, x1, x2, x3; | |
| 285 | vec_f x4, x5, x6, x7; | |
| 286 | vec_f x8, x9, x10, x11; | |
| 287 | vec_f x12, x13, x14, x15; | |
| 288 | vec_f x16, x17, x18, x19; | |
| 289 | vec_f x20, x21, x22, x23; | |
| 290 | vec_f x24, x25, x26, x27; | |
| 291 | vec_f x28, x29, x30, x31; | |
| 292 | vec_f x32, x33, x34; | |
| 293 | ||
| 294 | float* out= (float*)z; | |
| 295 | vec_f vc1 = {sqrthalf, sqrthalf, sqrthalf, sqrthalf}; | |
| 296 | ||
| 297 | vz0 = vec_ld(0, &(out[0])); | |
| 298 | vz1 = vec_ld(byte_2complex, &(out[0])); | |
| 299 | vz2 = vec_ld(byte_4complex, &(out[0])); | |
| 300 | vz3 = vec_ld(byte_6complex, &(out[0])); | |
| 301 | ||
| 302 | x0 = vec_perm(vz0, vz1, vcprm(0,1,s2,s1)); | |
| 303 | x1 = vec_perm(vz0, vz1, vcprm(2,3,s0,s3)); | |
| 304 | x2 = vec_perm(vz2, vz3, vcprm(2,1,s0,s1)); | |
| 305 | x3 = vec_perm(vz2, vz3, vcprm(0,3,s2,s3)); | |
| 306 | ||
| 307 | x4 = vec_add(x0, x1); | |
| 308 | x5 = vec_sub(x0, x1); | |
| 309 | x6 = vec_add(x2, x3); | |
| 310 | x7 = vec_sub(x2, x3); | |
| 311 | ||
| 312 | x8 = vec_perm(x4, x5, vcprm(0,1,s0,s1)); | |
| 313 | x9 = vec_perm(x4, x5, vcprm(2,3,s3,s2)); | |
| 314 | x10 = vec_perm(x6, x7, vcprm(2,1,s2,s1)); | |
| 315 | x11 = vec_perm(x6, x7, vcprm(0,3,s0,s3)); | |
| 316 | ||
| 317 | x12 = vec_add(x8, x9); | |
| 318 | x13 = vec_sub(x8, x9); | |
| 319 | x14 = vec_add(x10, x11); | |
| 320 | x15 = vec_sub(x10, x11); | |
| 321 | x16 = vec_perm(x12, x13, vcprm(0,s0,1,s1)); | |
| 322 | x17 = vec_perm(x14, x15, vcprm(0,s0,1,s1)); | |
| 323 | x18 = vec_perm(x16, x17, vcprm(s0,s3,s2,s1)); | |
| 324 | x19 = vec_add(x16, x18); // z0.r z2.r z0.i z2.i | |
| 325 | x20 = vec_sub(x16, x18); // z4.r z6.r z4.i z6.i | |
| 326 | ||
| 327 | x21 = vec_perm(x12, x13, vcprm(2,s2,3,s3)); | |
| 328 | x22 = vec_perm(x14, x15, vcprm(2,3,s2,s3)); | |
| 329 | x23 = vec_perm(x14, x15, vcprm(3,2,s3,s2)); | |
| 330 | x24 = vec_add(x22, x23); | |
| 331 | x25 = vec_sub(x22, x23); | |
| 332 | x26 = vec_mul( vec_perm(x24, x25, vcprm(2,s2,0,s0)), vc1); | |
| 333 | ||
| 334 | x27 = vec_add(x21, x26); // z1.r z7.r z1.i z3.i | |
| 335 | x28 = vec_sub(x21, x26); //z5.r z3.r z5.i z7.i | |
| 336 | ||
| 337 | x29 = vec_perm(x19, x27, vcprm(0,2,s0,s2)); // z0.r z0.i z1.r z1.i | |
| 338 | x30 = vec_perm(x19, x27, vcprm(1,3,s1,s3)); // z2.r z2.i z7.r z3.i | |
| 339 | x31 = vec_perm(x20, x28, vcprm(0,2,s0,s2)); // z4.r z4.i z5.r z5.i | |
| 340 | x32 = vec_perm(x20, x28, vcprm(1,3,s1,s3)); // z6.r z6.i z3.r z7.i | |
| 341 | x33 = vec_perm(x30, x32, vcprm(0,1,s2,3)); // z2.r z2.i z3.r z3.i | |
| 342 | x34 = vec_perm(x30, x32, vcprm(s0,s1,2,s3)); // z6.r z6.i z7.r z7.i | |
| 343 | ||
| 344 | vec_st(x29, 0, &(out[0])); | |
| 345 | vec_st(x33, byte_2complex, &(out[0])); | |
| 346 | vec_st(x31, byte_4complex, &(out[0])); | |
| 347 | vec_st(x34, byte_6complex, &(out[0])); | |
| 348 | } | |
| 349 | ||
| 350 | inline static void fft16_vsx_interleave(FFTComplex *z) | |
| 351 | { | |
| 352 | float* out= (float*)z; | |
| 353 | vec_f vc0 = {sqrthalf, sqrthalf, sqrthalf, sqrthalf}; | |
| 354 | vec_f vc1 = {ff_cos_16[1], ff_cos_16[1], ff_cos_16[1], ff_cos_16[1]}; | |
| 355 | vec_f vc2 = {ff_cos_16[3], ff_cos_16[3], ff_cos_16[3], ff_cos_16[3]}; | |
| 356 | vec_f vz0, vz1, vz2, vz3; | |
| 357 | vec_f vz4, vz5, vz6, vz7; | |
| 358 | vec_f x0, x1, x2, x3; | |
| 359 | vec_f x4, x5, x6, x7; | |
| 360 | vec_f x8, x9, x10, x11; | |
| 361 | vec_f x12, x13, x14, x15; | |
| 362 | vec_f x16, x17, x18, x19; | |
| 363 | vec_f x20, x21, x22, x23; | |
| 364 | vec_f x24, x25, x26, x27; | |
| 365 | vec_f x28, x29, x30, x31; | |
| 366 | vec_f x32, x33, x34, x35; | |
| 367 | vec_f x36, x37, x38, x39; | |
| 368 | vec_f x40, x41, x42, x43; | |
| 369 | vec_f x44, x45, x46, x47; | |
| 370 | vec_f x48, x49, x50, x51; | |
| 371 | vec_f x52, x53, x54, x55; | |
| 372 | vec_f x56, x57, x58, x59; | |
| 373 | vec_f x60, x61, x62, x63; | |
| 374 | vec_f x64, x65, x66, x67; | |
| 375 | vec_f x68, x69, x70, x71; | |
| 376 | vec_f x72, x73, x74, x75; | |
| 377 | vec_f x76, x77, x78, x79; | |
| 378 | vec_f x80, x81, x82, x83; | |
| 379 | vec_f x84, x85, x86; | |
| 380 | ||
| 381 | vz0 = vec_ld(0, &(out[0])); | |
| 382 | vz1 = vec_ld(byte_2complex, &(out[0])); | |
| 383 | vz2 = vec_ld(byte_4complex, &(out[0])); | |
| 384 | vz3 = vec_ld(byte_6complex, &(out[0])); | |
| 385 | vz4 = vec_ld(byte_8complex, &(out[0])); | |
| 386 | vz5 = vec_ld(byte_10complex, &(out[0])); | |
| 387 | vz6 = vec_ld(byte_12complex, &(out[0])); | |
| 388 | vz7 = vec_ld(byte_14complex, &(out[0])); | |
| 389 | ||
| 390 | x0 = vec_perm(vz0, vz1, vcprm(0,1,s2,s1)); | |
| 391 | x1 = vec_perm(vz0, vz1, vcprm(2,3,s0,s3)); | |
| 392 | x2 = vec_perm(vz2, vz3, vcprm(0,1,s0,s1)); | |
| 393 | x3 = vec_perm(vz2, vz3, vcprm(2,3,s2,s3)); | |
| 394 | ||
| 395 | x4 = vec_perm(vz4, vz5, vcprm(0,1,s2,s1)); | |
| 396 | x5 = vec_perm(vz4, vz5, vcprm(2,3,s0,s3)); | |
| 397 | x6 = vec_perm(vz6, vz7, vcprm(0,1,s2,s1)); | |
| 398 | x7 = vec_perm(vz6, vz7, vcprm(2,3,s0,s3)); | |
| 399 | ||
| 400 | x8 = vec_add(x0, x1); | |
| 401 | x9 = vec_sub(x0, x1); | |
| 402 | x10 = vec_add(x2, x3); | |
| 403 | x11 = vec_sub(x2, x3); | |
| 404 | ||
| 405 | x12 = vec_add(x4, x5); | |
| 406 | x13 = vec_sub(x4, x5); | |
| 407 | x14 = vec_add(x6, x7); | |
| 408 | x15 = vec_sub(x6, x7); | |
| 409 | ||
| 410 | x16 = vec_perm(x8, x9, vcprm(0,1,s0,s1)); | |
| 411 | x17 = vec_perm(x8, x9, vcprm(2,3,s3,s2)); | |
| 412 | x18 = vec_perm(x10, x11, vcprm(2,1,s1,s2)); | |
| 413 | x19 = vec_perm(x10, x11, vcprm(0,3,s0,s3)); | |
| 414 | x20 = vec_perm(x12, x14, vcprm(0,1,s0, s1)); | |
| 415 | x21 = vec_perm(x12, x14, vcprm(2,3,s2,s3)); | |
| 416 | x22 = vec_perm(x13, x15, vcprm(0,1,s0,s1)); | |
| 417 | x23 = vec_perm(x13, x15, vcprm(3,2,s3,s2)); | |
| 418 | ||
| 419 | x24 = vec_add(x16, x17); | |
| 420 | x25 = vec_sub(x16, x17); | |
| 421 | x26 = vec_add(x18, x19); | |
| 422 | x27 = vec_sub(x18, x19); | |
| 423 | x28 = vec_add(x20, x21); | |
| 424 | x29 = vec_sub(x20, x21); | |
| 425 | x30 = vec_add(x22, x23); | |
| 426 | x31 = vec_sub(x22, x23); | |
| 427 | ||
| 428 | x32 = vec_add(x24, x26); | |
| 429 | x33 = vec_sub(x24, x26); | |
| 430 | x34 = vec_perm(x32, x33, vcprm(0,1,s0,s1)); | |
| 431 | ||
| 432 | x35 = vec_perm(x28, x29, vcprm(2,1,s1,s2)); | |
| 433 | x36 = vec_perm(x28, x29, vcprm(0,3,s0,s3)); | |
| 434 | x37 = vec_add(x35, x36); | |
| 435 | x38 = vec_sub(x35, x36); | |
| 436 | x39 = vec_perm(x37, x38, vcprm(0,1,s1,s0)); | |
| 437 | ||
| 438 | x40 = vec_perm(x27, x38, vcprm(3,2,s2,s3)); | |
| 439 | x41 = vec_perm(x26, x37, vcprm(2,3,s3,s2)); | |
| 440 | x42 = vec_add(x40, x41); | |
| 441 | x43 = vec_sub(x40, x41); | |
| 442 | x44 = vec_mul(x42, vc0); | |
| 443 | x45 = vec_mul(x43, vc0); | |
| 444 | ||
| 445 | x46 = vec_add(x34, x39); // z0.r z0.i z4.r z4.i | |
| 446 | x47 = vec_sub(x34, x39); // z8.r z8.i z12.r z12.i | |
| 447 | ||
| 448 | x48 = vec_perm(x30, x31, vcprm(2,1,s1,s2)); | |
| 449 | x49 = vec_perm(x30, x31, vcprm(0,3,s3,s0)); | |
| 450 | x50 = vec_add(x48, x49); | |
| 451 | x51 = vec_sub(x48, x49); | |
| 452 | x52 = vec_mul(x50, vc1); | |
| 453 | x53 = vec_mul(x50, vc2); | |
| 454 | x54 = vec_mul(x51, vc1); | |
| 455 | x55 = vec_mul(x51, vc2); | |
| 456 | ||
| 457 | x56 = vec_perm(x24, x25, vcprm(2,3,s2,s3)); | |
| 458 | x57 = vec_perm(x44, x45, vcprm(0,1,s1,s0)); | |
| 459 | x58 = vec_add(x56, x57); | |
| 460 | x59 = vec_sub(x56, x57); | |
| 461 | ||
| 462 | x60 = vec_perm(x54, x55, vcprm(1,0,3,2)); | |
| 463 | x61 = vec_perm(x54, x55, vcprm(s1,s0,s3,s2)); | |
| 464 | x62 = vec_add(x52, x61); | |
| 465 | x63 = vec_sub(x52, x61); | |
| 466 | x64 = vec_add(x60, x53); | |
| 467 | x65 = vec_sub(x60, x53); | |
| 468 | x66 = vec_perm(x62, x64, vcprm(0,1,s3,s2)); | |
| 469 | x67 = vec_perm(x63, x65, vcprm(s0,s1,3,2)); | |
| 470 | ||
| 471 | x68 = vec_add(x58, x66); // z1.r z1.i z3.r z3.i | |
| 472 | x69 = vec_sub(x58, x66); // z9.r z9.i z11.r z11.i | |
| 473 | x70 = vec_add(x59, x67); // z5.r z5.i z15.r z15.i | |
| 474 | x71 = vec_sub(x59, x67); // z13.r z13.i z7.r z7.i | |
| 475 | ||
| 476 | x72 = vec_perm(x25, x27, vcprm(s1,s0,s2,s3)); | |
| 477 | x73 = vec_add(x25, x72); | |
| 478 | x74 = vec_sub(x25, x72); | |
| 479 | x75 = vec_perm(x73, x74, vcprm(0,1,s0,s1)); | |
| 480 | x76 = vec_perm(x44, x45, vcprm(3,2,s2,s3)); | |
| 481 | x77 = vec_add(x75, x76); // z2.r z2.i z6.r z6.i | |
| 482 | x78 = vec_sub(x75, x76); // z10.r z10.i z14.r z14.i | |
| 483 | ||
| 484 | x79 = vec_perm(x46, x68, vcprm(0,1,s0,s1)); // z0.r z0.i z1.r z1.i | |
| 485 | x80 = vec_perm(x77, x68, vcprm(0,1,s2,s3)); // z2.r z2.i z3.r z3.i | |
| 486 | x81 = vec_perm(x46, x70, vcprm(2,3,s0,s1)); // z4.r z4.i z5.r z5.i | |
| 487 | x82 = vec_perm(x71, x77, vcprm(s2,s3,2,3)); // z6.r z6.i z7.r z7.i | |
| 488 | vec_st(x79, 0, &(out[0])); | |
| 489 | vec_st(x80, byte_2complex, &(out[0])); | |
| 490 | vec_st(x81, byte_4complex, &(out[0])); | |
| 491 | vec_st(x82, byte_6complex, &(out[0])); | |
| 492 | x83 = vec_perm(x47, x69, vcprm(0,1,s0,s1)); // z8.r z8.i z9.r z9.i | |
| 493 | x84 = vec_perm(x78, x69, vcprm(0,1,s2,s3)); // z10.r z10.i z11.r z11.i | |
| 494 | x85 = vec_perm(x47, x71, vcprm(2,3,s0,s1)); // z12.r z12.i z13.r z13.i | |
| 495 | x86 = vec_perm(x70, x78, vcprm(s2,s3,2,3)); // z14.r z14.i z15.r z15.i | |
| 496 | vec_st(x83, byte_8complex, &(out[0])); | |
| 497 | vec_st(x84, byte_10complex, &(out[0])); | |
| 498 | vec_st(x85, byte_12complex, &(out[0])); | |
| 499 | vec_st(x86, byte_14complex, &(out[0])); | |
| 500 | } | |
| 501 | ||
| 502 | inline static void fft4_vsx(FFTComplex *z) | |
| 503 | { | |
| 504 | vec_f a, b, c, d; | |
| 505 | float* out= (float*)z; | |
| 506 | a = vec_ld(0, &(out[0])); | |
| 507 | b = vec_ld(byte_2complex, &(out[0])); | |
| 508 | ||
| 509 | c = vec_perm(a, b, vcprm(0,1,s2,s1)); | |
| 510 | d = vec_perm(a, b, vcprm(2,3,s0,s3)); | |
| 511 | a = vec_add(c, d); | |
| 512 | b = vec_sub(c, d); | |
| 513 | ||
| 514 | c = vec_perm(a,b, vcprm(0,s0,1,s1)); | |
| 515 | d = vec_perm(a, b, vcprm(2,s3,3,s2)); | |
| 516 | ||
| 517 | a = vec_add(c, d); | |
| 518 | b = vec_sub(c, d); | |
| 519 | ||
| 520 | c = vec_perm(a, b, vcprm(0,1,s0,s1)); | |
| 521 | d = vec_perm(a, b, vcprm(2,3,s2,s3)); | |
| 522 | ||
| 523 | vec_st(c, 0, &(out[0])); | |
| 524 | vec_st(d, byte_2complex, &(out[0])); | |
| 525 | return; | |
| 526 | } | |
| 527 | ||
| 528 | inline static void fft8_vsx(FFTComplex *z) | |
| 529 | { | |
| 530 | vec_f vz0, vz1, vz2, vz3; | |
| 531 | vec_f vz4, vz5, vz6, vz7, vz8; | |
| 532 | ||
| 533 | float* out= (float*)z; | |
| 534 | vec_f vc0 = {0.0, 0.0, 0.0, 0.0}; | |
| 535 | vec_f vc1 = {-sqrthalf, sqrthalf, sqrthalf, -sqrthalf}; | |
| 536 | vec_f vc2 = {sqrthalf, sqrthalf, sqrthalf, sqrthalf}; | |
| 537 | ||
| 538 | vz0 = vec_ld(0, &(out[0])); | |
| 539 | vz1 = vec_ld(byte_2complex, &(out[0])); | |
| 540 | vz2 = vec_ld(byte_4complex, &(out[0])); | |
| 541 | vz3 = vec_ld(byte_6complex, &(out[0])); | |
| 542 | ||
| 543 | vz6 = vec_perm(vz2, vz3, vcprm(0,s0,1,s1)); | |
| 544 | vz7 = vec_perm(vz2, vz3, vcprm(2,s2,3,s3)); | |
| 545 | vz4 = vec_perm(vz0, vz1, vcprm(0,1,s2,s1)); | |
| 546 | vz5 = vec_perm(vz0, vz1, vcprm(2,3,s0,s3)); | |
| 547 | ||
| 548 | vz2 = vec_add(vz6, vz7); | |
| 549 | vz3 = vec_sub(vz6, vz7); | |
| 550 | vz8 = vec_perm(vz3, vz3, vcprm(2,3,0,1)); | |
| 551 | ||
| 552 | vz0 = vec_add(vz4, vz5); | |
| 553 | vz1 = vec_sub(vz4, vz5); | |
| 554 | ||
| 555 | vz3 = vec_madd(vz3, vc1, vc0); | |
| 556 | vz3 = vec_madd(vz8, vc2, vz3); | |
| 557 | ||
| 558 | vz4 = vec_perm(vz0, vz1, vcprm(0,s0,1,s1)); | |
| 559 | vz5 = vec_perm(vz0, vz1, vcprm(2,s3,3,s2)); | |
| 560 | vz6 = vec_perm(vz2, vz3, vcprm(1,2,s3,s0)); | |
| 561 | vz7 = vec_perm(vz2, vz3, vcprm(0,3,s2,s1)); | |
| 562 | ||
| 563 | vz0 = vec_add(vz4, vz5); | |
| 564 | vz1 = vec_sub(vz4, vz5); | |
| 565 | vz2 = vec_add(vz6, vz7); | |
| 566 | vz3 = vec_sub(vz6, vz7); | |
| 567 | ||
| 568 | vz4 = vec_perm(vz0, vz1, vcprm(0,1,s0,s1)); | |
| 569 | vz5 = vec_perm(vz0, vz1, vcprm(2,3,s2,s3)); | |
| 570 | vz6 = vec_perm(vz2, vz3, vcprm(0,2,s1,s3)); | |
| 571 | vz7 = vec_perm(vz2, vz3, vcprm(1,3,s0,s2)); | |
| 572 | ||
| 573 | ||
| 574 | vz2 = vec_sub(vz4, vz6); | |
| 575 | vz3 = vec_sub(vz5, vz7); | |
| 576 | ||
| 577 | vz0 = vec_add(vz4, vz6); | |
| 578 | vz1 = vec_add(vz5, vz7); | |
| 579 | ||
| 580 | vec_st(vz0, 0, &(out[0])); | |
| 581 | vec_st(vz1, byte_2complex, &(out[0])); | |
| 582 | vec_st(vz2, byte_4complex, &(out[0])); | |
| 583 | vec_st(vz3, byte_6complex, &(out[0])); | |
| 584 | return; | |
| 585 | } | |
| 586 | ||
| 587 | inline static void fft16_vsx(FFTComplex *z) | |
| 588 | { | |
| 589 | float* out= (float*)z; | |
| 590 | vec_f vc0 = {0.0, 0.0, 0.0, 0.0}; | |
| 591 | vec_f vc1 = {-sqrthalf, sqrthalf, sqrthalf, -sqrthalf}; | |
| 592 | vec_f vc2 = {sqrthalf, sqrthalf, sqrthalf, sqrthalf}; | |
| 593 | vec_f vc3 = {1.0, 0.92387953, sqrthalf, 0.38268343}; | |
| 594 | vec_f vc4 = {0.0, 0.38268343, sqrthalf, 0.92387953}; | |
| 595 | vec_f vc5 = {-0.0, -0.38268343, -sqrthalf, -0.92387953}; | |
| 596 | ||
| 597 | vec_f vz0, vz1, vz2, vz3; | |
| 598 | vec_f vz4, vz5, vz6, vz7; | |
| 599 | vec_f vz8, vz9, vz10, vz11; | |
| 600 | vec_f vz12, vz13; | |
| 601 | ||
| 602 | vz0 = vec_ld(byte_8complex, &(out[0])); | |
| 603 | vz1 = vec_ld(byte_10complex, &(out[0])); | |
| 604 | vz2 = vec_ld(byte_12complex, &(out[0])); | |
| 605 | vz3 = vec_ld(byte_14complex, &(out[0])); | |
| 606 | ||
| 607 | vz4 = vec_perm(vz0, vz1, vcprm(0,1,s2,s1)); | |
| 608 | vz5 = vec_perm(vz0, vz1, vcprm(2,3,s0,s3)); | |
| 609 | vz6 = vec_perm(vz2, vz3, vcprm(0,1,s2,s1)); | |
| 610 | vz7 = vec_perm(vz2, vz3, vcprm(2,3,s0,s3)); | |
| 611 | ||
| 612 | vz0 = vec_add(vz4, vz5); | |
| 613 | vz1= vec_sub(vz4, vz5); | |
| 614 | vz2 = vec_add(vz6, vz7); | |
| 615 | vz3 = vec_sub(vz6, vz7); | |
| 616 | ||
| 617 | vz4 = vec_perm(vz0, vz1, vcprm(0,s0,1,s1)); | |
| 618 | vz5 = vec_perm(vz0, vz1, vcprm(2,s3,3,s2)); | |
| 619 | vz6 = vec_perm(vz2, vz3, vcprm(0,s0,1,s1)); | |
| 620 | vz7 = vec_perm(vz2, vz3, vcprm(2,s3,3,s2)); | |
| 621 | ||
| 622 | vz0 = vec_add(vz4, vz5); | |
| 623 | vz1 = vec_sub(vz4, vz5); | |
| 624 | vz2 = vec_add(vz6, vz7); | |
| 625 | vz3 = vec_sub(vz6, vz7); | |
| 626 | ||
| 627 | vz4 = vec_perm(vz0, vz1, vcprm(0,1,s0,s1)); | |
| 628 | vz5 = vec_perm(vz0, vz1, vcprm(2,3,s2,s3)); | |
| 629 | ||
| 630 | vz6 = vec_perm(vz2, vz3, vcprm(0,1,s0,s1)); | |
| 631 | vz7 = vec_perm(vz2, vz3, vcprm(2,3,s2,s3)); | |
| 632 | ||
| 633 | vz0 = vec_ld(0, &(out[0])); | |
| 634 | vz1 = vec_ld(byte_2complex, &(out[0])); | |
| 635 | vz2 = vec_ld(byte_4complex, &(out[0])); | |
| 636 | vz3 = vec_ld(byte_6complex, &(out[0])); | |
| 637 | vz10 = vec_perm(vz2, vz3, vcprm(0,s0,1,s1)); | |
| 638 | vz11 = vec_perm(vz2, vz3, vcprm(2,s2,3,s3)); | |
| 639 | vz8 = vec_perm(vz0, vz1, vcprm(0,1,s2,s1)); | |
| 640 | vz9 = vec_perm(vz0, vz1, vcprm(2,3,s0,s3)); | |
| 641 | ||
| 642 | vz2 = vec_add(vz10, vz11); | |
| 643 | vz3 = vec_sub(vz10, vz11); | |
| 644 | vz12 = vec_perm(vz3, vz3, vcprm(2,3,0,1)); | |
| 645 | vz0 = vec_add(vz8, vz9); | |
| 646 | vz1 = vec_sub(vz8, vz9); | |
| 647 | ||
| 648 | vz3 = vec_madd(vz3, vc1, vc0); | |
| 649 | vz3 = vec_madd(vz12, vc2, vz3); | |
| 650 | vz8 = vec_perm(vz0, vz1, vcprm(0,s0,1,s1)); | |
| 651 | vz9 = vec_perm(vz0, vz1, vcprm(2,s3,3,s2)); | |
| 652 | vz10 = vec_perm(vz2, vz3, vcprm(1,2,s3,s0)); | |
| 653 | vz11 = vec_perm(vz2, vz3, vcprm(0,3,s2,s1)); | |
| 654 | ||
| 655 | vz0 = vec_add(vz8, vz9); | |
| 656 | vz1 = vec_sub(vz8, vz9); | |
| 657 | vz2 = vec_add(vz10, vz11); | |
| 658 | vz3 = vec_sub(vz10, vz11); | |
| 659 | ||
| 660 | vz8 = vec_perm(vz0, vz1, vcprm(0,1,s0,s1)); | |
| 661 | vz9 = vec_perm(vz0, vz1, vcprm(2,3,s2,s3)); | |
| 662 | vz10 = vec_perm(vz2, vz3, vcprm(0,2,s1,s3)); | |
| 663 | vz11 = vec_perm(vz2, vz3, vcprm(1,3,s0,s2)); | |
| 664 | ||
| 665 | vz2 = vec_sub(vz8, vz10); | |
| 666 | vz3 = vec_sub(vz9, vz11); | |
| 667 | vz0 = vec_add(vz8, vz10); | |
| 668 | vz1 = vec_add(vz9, vz11); | |
| 669 | ||
| 670 | vz8 = vec_madd(vz4, vc3, vc0); | |
| 671 | vz9 = vec_madd(vz5, vc3, vc0); | |
| 672 | vz10 = vec_madd(vz6, vc3, vc0); | |
| 673 | vz11 = vec_madd(vz7, vc3, vc0); | |
| 674 | ||
| 675 | vz8 = vec_madd(vz5, vc4, vz8); | |
| 676 | vz9 = vec_madd(vz4, vc5, vz9); | |
| 677 | vz10 = vec_madd(vz7, vc5, vz10); | |
| 678 | vz11 = vec_madd(vz6, vc4, vz11); | |
| 679 | ||
| 680 | vz12 = vec_sub(vz10, vz8); | |
| 681 | vz10 = vec_add(vz10, vz8); | |
| 682 | ||
| 683 | vz13 = vec_sub(vz9, vz11); | |
| 684 | vz11 = vec_add(vz9, vz11); | |
| 685 | ||
| 686 | vz4 = vec_sub(vz0, vz10); | |
| 687 | vz0 = vec_add(vz0, vz10); | |
| 688 | ||
| 689 | vz7= vec_sub(vz3, vz12); | |
| 690 | vz3= vec_add(vz3, vz12); | |
| 691 | ||
| 692 | vz5 = vec_sub(vz1, vz11); | |
| 693 | vz1 = vec_add(vz1, vz11); | |
| 694 | ||
| 695 | vz6 = vec_sub(vz2, vz13); | |
| 696 | vz2 = vec_add(vz2, vz13); | |
| 697 | ||
| 698 | vec_st(vz0, 0, &(out[0])); | |
| 699 | vec_st(vz1, byte_2complex, &(out[0])); | |
| 700 | vec_st(vz2, byte_4complex, &(out[0])); | |
| 701 | vec_st(vz3, byte_6complex, &(out[0])); | |
| 702 | vec_st(vz4, byte_8complex, &(out[0])); | |
| 703 | vec_st(vz5, byte_10complex, &(out[0])); | |
| 704 | vec_st(vz6, byte_12complex, &(out[0])); | |
| 705 | vec_st(vz7, byte_14complex, &(out[0])); | |
| 706 | return; | |
| 707 | ||
| 708 | } | |
| 709 | inline static void pass_vsx(FFTComplex * z, const FFTSample * wre, unsigned int n) | |
| 710 | { | |
| 711 | int o1 = n<<1; | |
| 712 | int o2 = n<<2; | |
| 713 | int o3 = o1+o2; | |
| 714 | int i1, i2, i3; | |
| 715 | FFTSample* out = (FFTSample*)z; | |
| 716 | const FFTSample *wim = wre+o1; | |
| 717 | vec_f v0, v1, v2, v3; | |
| 718 | vec_f v4, v5, v6, v7; | |
| 719 | vec_f v8, v9, v10, v11; | |
| 720 | vec_f v12, v13; | |
| 721 | ||
| 722 | n = n-2; | |
| 723 | i1 = o1*sizeof(FFTComplex); | |
| 724 | i2 = o2*sizeof(FFTComplex); | |
| 725 | i3 = o3*sizeof(FFTComplex); | |
| 726 | ||
| 727 | v8 = vec_ld(0, &(wre[0])); | |
| 728 | v10 = vec_ld(0, &(wim[0])); | |
| 729 | v9 = vec_ld(0, &(wim[-4])); | |
| 730 | v9 = vec_perm(v9, v10, vcprm(s0,3,2,1)); | |
| 731 | ||
| 732 | v4 = vec_ld(i2, &(out[0])); | |
| 733 | v5 = vec_ld(i2+16, &(out[0])); | |
| 734 | v6 = vec_ld(i3, &(out[0])); | |
| 735 | v7 = vec_ld(i3+16, &(out[0])); | |
| 736 | v10 = vec_mul(v4, v8); // r2*wre | |
| 737 | v11 = vec_mul(v5, v8); // i2*wre | |
| 738 | v12 = vec_mul(v6, v8); // r3*wre | |
| 739 | v13 = vec_mul(v7, v8); // i3*wre | |
| 740 | ||
| 741 | v0 = vec_ld(0, &(out[0])); // r0 | |
| 742 | v3 = vec_ld(i1+16, &(out[0])); // i1 | |
| 743 | v10 = vec_madd(v5, v9, v10); // r2*wim | |
| 744 | v11 = vec_nmsub(v4, v9, v11); // i2*wim | |
| 745 | v12 = vec_nmsub(v7, v9, v12); // r3*wim | |
| 746 | v13 = vec_madd(v6, v9, v13); // i3*wim | |
| 747 | ||
| 748 | v1 = vec_ld(16, &(out[0])); // i0 | |
| 749 | v2 = vec_ld(i1, &(out[0])); // r1 | |
| 750 | v8 = vec_sub(v12, v10); | |
| 751 | v12 = vec_add(v12, v10); | |
| 752 | v9 = vec_sub(v11, v13); | |
| 753 | v13 = vec_add(v11, v13); | |
| 754 | v4 = vec_sub(v0, v12); | |
| 755 | v0 = vec_add(v0, v12); | |
| 756 | v7 = vec_sub(v3, v8); | |
| 757 | v3 = vec_add(v3, v8); | |
| 758 | ||
| 759 | vec_st(v0, 0, &(out[0])); // r0 | |
| 760 | vec_st(v3, i1+16, &(out[0])); // i1 | |
| 761 | vec_st(v4, i2, &(out[0])); // r2 | |
| 762 | vec_st(v7, i3+16, &(out[0]));// i3 | |
| 763 | ||
| 764 | v5 = vec_sub(v1, v13); | |
| 765 | v1 = vec_add(v1, v13); | |
| 766 | v6 = vec_sub(v2, v9); | |
| 767 | v2 = vec_add(v2, v9); | |
| 768 | ||
| 769 | vec_st(v1, 16, &(out[0])); // i0 | |
| 770 | vec_st(v2, i1, &(out[0])); // r1 | |
| 771 | vec_st(v5, i2+16, &(out[0])); // i2 | |
| 772 | vec_st(v6, i3, &(out[0])); // r3 | |
| 773 | ||
| 774 | do { | |
| 775 | out += 8; | |
| 776 | wre += 4; | |
| 777 | wim -= 4; | |
| 778 | ||
| 779 | v8 = vec_ld(0, &(wre[0])); | |
| 780 | v10 = vec_ld(0, &(wim[0])); | |
| 781 | v9 = vec_ld(0, &(wim[-4])); | |
| 782 | v9 = vec_perm(v9, v10, vcprm(s0,3,2,1)); | |
| 783 | ||
| 784 | v4 = vec_ld(i2, &(out[0])); // r2 | |
| 785 | v5 = vec_ld(i2+16, &(out[0])); // i2 | |
| 786 | v6 = vec_ld(i3, &(out[0])); // r3 | |
| 787 | v7 = vec_ld(i3+16, &(out[0]));// i3 | |
| 788 | v10 = vec_mul(v4, v8); // r2*wre | |
| 789 | v11 = vec_mul(v5, v8); // i2*wre | |
| 790 | v12 = vec_mul(v6, v8); // r3*wre | |
| 791 | v13 = vec_mul(v7, v8); // i3*wre | |
| 792 | ||
| 793 | v0 = vec_ld(0, &(out[0])); // r0 | |
| 794 | v3 = vec_ld(i1+16, &(out[0])); // i1 | |
| 795 | v10 = vec_madd(v5, v9, v10); // r2*wim | |
| 796 | v11 = vec_nmsub(v4, v9, v11); // i2*wim | |
| 797 | v12 = vec_nmsub(v7, v9, v12); // r3*wim | |
| 798 | v13 = vec_madd(v6, v9, v13); // i3*wim | |
| 799 | ||
| 800 | v1 = vec_ld(16, &(out[0])); // i0 | |
| 801 | v2 = vec_ld(i1, &(out[0])); // r1 | |
| 802 | v8 = vec_sub(v12, v10); | |
| 803 | v12 = vec_add(v12, v10); | |
| 804 | v9 = vec_sub(v11, v13); | |
| 805 | v13 = vec_add(v11, v13); | |
| 806 | v4 = vec_sub(v0, v12); | |
| 807 | v0 = vec_add(v0, v12); | |
| 808 | v7 = vec_sub(v3, v8); | |
| 809 | v3 = vec_add(v3, v8); | |
| 810 | ||
| 811 | vec_st(v0, 0, &(out[0])); // r0 | |
| 812 | vec_st(v3, i1+16, &(out[0])); // i1 | |
| 813 | vec_st(v4, i2, &(out[0])); // r2 | |
| 814 | vec_st(v7, i3+16, &(out[0])); // i3 | |
| 815 | ||
| 816 | v5 = vec_sub(v1, v13); | |
| 817 | v1 = vec_add(v1, v13); | |
| 818 | v6 = vec_sub(v2, v9); | |
| 819 | v2 = vec_add(v2, v9); | |
| 820 | ||
| 821 | vec_st(v1, 16, &(out[0])); // i0 | |
| 822 | vec_st(v2, i1, &(out[0])); // r1 | |
| 823 | vec_st(v5, i2+16, &(out[0])); // i2 | |
| 824 | vec_st(v6, i3, &(out[0])); // r3 | |
| 825 | } while (n-=2); | |
| 826 | } | |
| 827 | ||
| 828 | #endif | |
| 829 | ||
| 830 | #endif /* AVCODEC_PPC_FFT_VSX_H */ |