34 #include "NE10_types.h"
35 #include "NE10_macros.h"
42 ne10_float32_t s0_r, s0_i, s1_r, s1_i, s2_r, s2_i;
43 ne10_float32_t tmp_r, tmp_i;
45 s2_r = Fin[0].r - Fin[2].r;
46 s2_i = Fin[0].i - Fin[2].i;
48 tmp_r = Fin[0].r + Fin[2].r;
49 tmp_i = Fin[0].i + Fin[2].i;
51 s0_r = Fin[1].r + Fin[3].r;
52 s0_i = Fin[1].i + Fin[3].i;
54 s1_r = Fin[1].r - Fin[3].r;
55 s1_i = Fin[1].i - Fin[3].i;
56 Fout[2].r = tmp_r - s0_r;
57 Fout[2].i = tmp_i - s0_i;
58 Fout[0].r = tmp_r + s0_r;
59 Fout[0].i = tmp_i + s0_i;
61 Fout[1].r = s2_r + s1_i;
62 Fout[1].i = s2_i - s1_r;
63 Fout[3].r = s2_r - s1_i;
64 Fout[3].i = s2_i + s1_r;
70 ne10_float32_t s0_r, s0_i, s1_r, s1_i, s2_r, s2_i;
71 ne10_float32_t tmp_r, tmp_i;
73 s2_r = Fin[0].r - Fin[2].r;
74 s2_i = Fin[0].i - Fin[2].i;
76 tmp_r = Fin[0].r + Fin[2].r;
77 tmp_i = Fin[0].i + Fin[2].i;
79 s0_r = Fin[1].r + Fin[3].r;
80 s0_i = Fin[1].i + Fin[3].i;
82 s1_r = Fin[1].r - Fin[3].r;
83 s1_i = Fin[1].i - Fin[3].i;
84 Fout[2].r = (tmp_r - s0_r) * 0.25f;
85 Fout[2].i = (tmp_i - s0_i) * 0.25f;
86 Fout[0].r = (tmp_r + s0_r) * 0.25f;
87 Fout[0].i = (tmp_i + s0_i) * 0.25f;
89 Fout[1].r = (s2_r - s1_i) * 0.25f;
90 Fout[1].i = (s2_i + s1_r) * 0.25f;
91 Fout[3].r = (s2_r + s1_i) * 0.25f;
92 Fout[3].i = (s2_i - s1_r) * 0.25f;
99 ne10_float32_t s0_r, s0_i, s1_r, s1_i, s2_r, s2_i, s3_r, s3_i, s4_r, s4_i, s5_r, s5_i, s6_r, s6_i, s7_r, s7_i;
100 ne10_float32_t t0_r, t0_i, t1_r, t1_i, t2_r, t2_i, t3_r, t3_i, t4_r, t4_i, t5_r, t5_i;
101 const ne10_float32_t TW_81 = 0.70710678;
103 s0_r = Fin[0].r + Fin[4].r;
104 s0_i = Fin[0].i + Fin[4].i;
105 s1_r = Fin[0].r - Fin[4].r;
106 s1_i = Fin[0].i - Fin[4].i;
107 s2_r = Fin[1].r + Fin[5].r;
108 s2_i = Fin[1].i + Fin[5].i;
109 s3_r = Fin[1].r - Fin[5].r;
110 s3_i = Fin[1].i - Fin[5].i;
111 s4_r = Fin[2].r + Fin[6].r;
112 s4_i = Fin[2].i + Fin[6].i;
113 s5_r = Fin[2].r - Fin[6].r;
114 s5_i = Fin[2].i - Fin[6].i;
115 s6_r = Fin[3].r + Fin[7].r;
116 s6_i = Fin[3].i + Fin[7].i;
117 s7_r = Fin[3].r - Fin[7].r;
118 s7_i = Fin[3].i - Fin[7].i;
128 Fout[0].r = t1_r + t2_r;
129 Fout[0].i = t1_i + t2_i;
130 Fout[4].r = t1_r - t2_r;
131 Fout[4].i = t1_i - t2_i;
132 Fout[2].r = t0_r + t3_i;
133 Fout[2].i = t0_i - t3_r;
134 Fout[6].r = t0_r - t3_i;
135 Fout[6].i = t0_i + t3_r;
137 t4_r = (s3_r + s3_i) * TW_81;
138 t4_i = - (s3_r - s3_i) * TW_81;
139 t5_r = (s7_r - s7_i) * TW_81;
140 t5_i = (s7_r + s7_i) * TW_81;
150 Fout[1].r = t1_r + t2_r;
151 Fout[1].i = t1_i + t2_i;
152 Fout[5].r = t1_r - t2_r;
153 Fout[5].i = t1_i - t2_i;
154 Fout[3].r = t0_r + t3_i;
155 Fout[3].i = t0_i - t3_r;
156 Fout[7].r = t0_r - t3_i;
157 Fout[7].i = t0_i + t3_r;
163 ne10_float32_t s0_r, s0_i, s1_r, s1_i, s2_r, s2_i, s3_r, s3_i, s4_r, s4_i, s5_r, s5_i, s6_r, s6_i, s7_r, s7_i;
164 ne10_float32_t t0_r, t0_i, t1_r, t1_i, t2_r, t2_i, t3_r, t3_i, t4_r, t4_i, t5_r, t5_i;
165 const ne10_float32_t TW_81 = 0.70710678;
167 s0_r = Fin[0].r + Fin[4].r;
168 s0_i = Fin[0].i + Fin[4].i;
169 s1_r = Fin[0].r - Fin[4].r;
170 s1_i = Fin[0].i - Fin[4].i;
171 s2_r = Fin[1].r + Fin[5].r;
172 s2_i = Fin[1].i + Fin[5].i;
173 s3_r = Fin[1].r - Fin[5].r;
174 s3_i = Fin[1].i - Fin[5].i;
175 s4_r = Fin[2].r + Fin[6].r;
176 s4_i = Fin[2].i + Fin[6].i;
177 s5_r = Fin[2].r - Fin[6].r;
178 s5_i = Fin[2].i - Fin[6].i;
179 s6_r = Fin[3].r + Fin[7].r;
180 s6_i = Fin[3].i + Fin[7].i;
181 s7_r = Fin[3].r - Fin[7].r;
182 s7_i = Fin[3].i - Fin[7].i;
192 Fout[0].r = (t1_r + t2_r) * 0.125f;
193 Fout[0].i = (t1_i + t2_i) * 0.125f;
194 Fout[4].r = (t1_r - t2_r) * 0.125f;
195 Fout[4].i = (t1_i - t2_i) * 0.125f;
196 Fout[2].r = (t0_r - t3_i) * 0.125f;
197 Fout[2].i = (t0_i + t3_r) * 0.125f;
198 Fout[6].r = (t0_r + t3_i) * 0.125f;
199 Fout[6].i = (t0_i - t3_r) * 0.125f;
201 t4_r = (s3_r - s3_i) * TW_81;
202 t4_i = (s3_r + s3_i) * TW_81;
203 t5_r = (s7_r + s7_i) * TW_81;
204 t5_i = - (s7_r - s7_i) * TW_81;
214 Fout[1].r = (t1_r + t2_r) * 0.125f;
215 Fout[1].i = (t1_i + t2_i) * 0.125f;
216 Fout[5].r = (t1_r - t2_r) * 0.125f;
217 Fout[5].i = (t1_i - t2_i) * 0.125f;
218 Fout[3].r = (t0_r - t3_i) * 0.125f;
219 Fout[3].i = (t0_i + t3_r) * 0.125f;
220 Fout[7].r = (t0_r + t3_i) * 0.125f;
221 Fout[7].i = (t0_i - t3_r) * 0.125f;
231 float32_t *p_src0, *p_src4, *p_src8, *p_src12;
232 float32x4x2_t q2_in_0123, q2_in_4567, q2_in_89ab, q2_in_cdef;
233 float32x4_t q_t0_r, q_t0_i, q_t1_r, q_t1_i, q_t2_r, q_t2_i, q_t3_r, q_t3_i;
234 float32x4_t q_out_r048c, q_out_i048c, q_out_r159d, q_out_i159d;
235 float32x4_t q_out_r26ae, q_out_i26ae, q_out_r37bf, q_out_i37bf;
236 p_src0 = (float32_t*) (& (Fin[0]));
237 p_src4 = (float32_t*) (& (Fin[4]));
238 p_src8 = (float32_t*) (& (Fin[8]));
239 p_src12 = (float32_t*) (& (Fin[12]));
240 q2_in_0123 = vld2q_f32 (p_src0);
241 q2_in_4567 = vld2q_f32 (p_src4);
242 q2_in_89ab = vld2q_f32 (p_src8);
243 q2_in_cdef = vld2q_f32 (p_src12);
245 q_t2_r = vsubq_f32 (q2_in_0123.val[0], q2_in_89ab.val[0]);
246 q_t2_i = vsubq_f32 (q2_in_0123.val[1], q2_in_89ab.val[1]);
247 q_t3_r = vaddq_f32 (q2_in_0123.val[0], q2_in_89ab.val[0]);
248 q_t3_i = vaddq_f32 (q2_in_0123.val[1], q2_in_89ab.val[1]);
250 q_t0_r = vaddq_f32 (q2_in_4567.val[0], q2_in_cdef.val[0]);
251 q_t0_i = vaddq_f32 (q2_in_4567.val[1], q2_in_cdef.val[1]);
252 q_t1_r = vsubq_f32 (q2_in_4567.val[0], q2_in_cdef.val[0]);
253 q_t1_i = vsubq_f32 (q2_in_4567.val[1], q2_in_cdef.val[1]);
255 q_out_r26ae = vsubq_f32 (q_t3_r, q_t0_r);
256 q_out_i26ae = vsubq_f32 (q_t3_i, q_t0_i);
257 q_out_r048c = vaddq_f32 (q_t3_r, q_t0_r);
258 q_out_i048c = vaddq_f32 (q_t3_i, q_t0_i);
259 q_out_r159d = vaddq_f32 (q_t2_r, q_t1_i);
260 q_out_i159d = vsubq_f32 (q_t2_i, q_t1_r);
261 q_out_r37bf = vsubq_f32 (q_t2_r, q_t1_i);
262 q_out_i37bf = vaddq_f32 (q_t2_i, q_t1_r);
265 float32_t *p_dst0, *p_dst1, *p_dst2, *p_dst3;
266 float32_t *p_tw1, *p_tw2, *p_tw3;
267 float32x4_t q_s0_r, q_s0_i, q_s1_r, q_s1_i, q_s2_r, q_s2_i;
268 float32x4_t q_s3_r, q_s3_i, q_s4_r, q_s4_i, q_s5_r, q_s5_i;
269 float32x4x2_t q2_tmp_0, q2_tmp_1, q2_tmp_2, q2_tmp_3;
270 float32x4_t q_in_r0123, q_in_r4567, q_in_r89ab, q_in_rcdef;
271 float32x4_t q_in_i0123, q_in_i4567, q_in_i89ab, q_in_icdef;
272 float32x4x2_t q2_tw1, q2_tw2, q2_tw3;
273 float32x4x2_t q2_out_0123, q2_out_4567, q2_out_89ab, q2_out_cdef;
277 p_dst0 = (float32_t*) (&Fout[0]);
278 p_dst1 = (float32_t*) (&Fout[4]);
279 p_dst2 = (float32_t*) (&Fout[8]);
280 p_dst3 = (float32_t*) (&Fout[12]);
281 p_tw1 = (float32_t*) tw1;
282 p_tw2 = (float32_t*) tw2;
283 p_tw3 = (float32_t*) tw3;
284 q2_tmp_0 = vzipq_f32 (q_out_r048c, q_out_r159d);
285 q2_tmp_1 = vzipq_f32 (q_out_i048c, q_out_i159d);
286 q2_tmp_2 = vzipq_f32 (q_out_r26ae, q_out_r37bf);
287 q2_tmp_3 = vzipq_f32 (q_out_i26ae, q_out_i37bf);
288 q_in_r0123 = vcombine_f32 (vget_low_f32 (q2_tmp_0.val[0]), vget_low_f32 (q2_tmp_2.val[0]));
289 q_in_i0123 = vcombine_f32 (vget_low_f32 (q2_tmp_1.val[0]), vget_low_f32 (q2_tmp_3.val[0]));
290 q_in_r4567 = vcombine_f32 (vget_high_f32 (q2_tmp_0.val[0]), vget_high_f32 (q2_tmp_2.val[0]));
291 q_in_i4567 = vcombine_f32 (vget_high_f32 (q2_tmp_1.val[0]), vget_high_f32 (q2_tmp_3.val[0]));
292 q_in_r89ab = vcombine_f32 (vget_low_f32 (q2_tmp_0.val[1]), vget_low_f32 (q2_tmp_2.val[1]));
293 q_in_i89ab = vcombine_f32 (vget_low_f32 (q2_tmp_1.val[1]), vget_low_f32 (q2_tmp_3.val[1]));
294 q_in_rcdef = vcombine_f32 (vget_high_f32 (q2_tmp_0.val[1]), vget_high_f32 (q2_tmp_2.val[1]));
295 q_in_icdef = vcombine_f32 (vget_high_f32 (q2_tmp_1.val[1]), vget_high_f32 (q2_tmp_3.val[1]));
296 q2_tw1 = vld2q_f32 (p_tw1);
297 q2_tw2 = vld2q_f32 (p_tw2);
298 q2_tw3 = vld2q_f32 (p_tw3);
300 q_s0_r = vmulq_f32 (q_in_r4567, q2_tw1.val[0]);
301 q_s0_i = vmulq_f32 (q_in_r4567, q2_tw1.val[1]);
302 q_s1_r = vmulq_f32 (q_in_r89ab, q2_tw2.val[0]);
303 q_s1_i = vmulq_f32 (q_in_r89ab, q2_tw2.val[1]);
304 q_s2_r = vmulq_f32 (q_in_rcdef, q2_tw3.val[0]);
305 q_s2_i = vmulq_f32 (q_in_rcdef, q2_tw3.val[1]);
306 q_s0_r = vmlsq_f32 (q_s0_r, q_in_i4567, q2_tw1.val[1]);
307 q_s0_i = vmlaq_f32 (q_s0_i, q_in_i4567, q2_tw1.val[0]);
308 q_s1_r = vmlsq_f32 (q_s1_r, q_in_i89ab, q2_tw2.val[1]);
309 q_s1_i = vmlaq_f32 (q_s1_i, q_in_i89ab, q2_tw2.val[0]);
310 q_s2_r = vmlsq_f32 (q_s2_r, q_in_icdef, q2_tw3.val[1]);
311 q_s2_i = vmlaq_f32 (q_s2_i, q_in_icdef, q2_tw3.val[0]);
314 q_s5_r = vsubq_f32 (q_in_r0123, q_s1_r);
315 q_s5_i = vsubq_f32 (q_in_i0123, q_s1_i);
316 q2_out_0123.val[0] = vaddq_f32 (q_in_r0123, q_s1_r);
317 q2_out_0123.val[1] = vaddq_f32 (q_in_i0123, q_s1_i);
319 q_s3_r = vaddq_f32 (q_s0_r, q_s2_r);
320 q_s3_i = vaddq_f32 (q_s0_i, q_s2_i);
321 q_s4_r = vsubq_f32 (q_s0_r, q_s2_r);
322 q_s4_i = vsubq_f32 (q_s0_i, q_s2_i);
324 q2_out_89ab.val[0] = vsubq_f32 (q2_out_0123.val[0], q_s3_r);
325 q2_out_89ab.val[1] = vsubq_f32 (q2_out_0123.val[1], q_s3_i);
326 q2_out_0123.val[0] = vaddq_f32 (q2_out_0123.val[0], q_s3_r);
327 q2_out_0123.val[1] = vaddq_f32 (q2_out_0123.val[1], q_s3_i);
329 q2_out_4567.val[0] = vaddq_f32 (q_s5_r, q_s4_i);
330 q2_out_4567.val[1] = vsubq_f32 (q_s5_i, q_s4_r);
331 q2_out_cdef.val[0] = vsubq_f32 (q_s5_r, q_s4_i);
332 q2_out_cdef.val[1] = vaddq_f32 (q_s5_i, q_s4_r);
334 vst2q_f32 (p_dst0, q2_out_0123);
335 vst2q_f32 (p_dst1, q2_out_4567);
336 vst2q_f32 (p_dst2, q2_out_89ab);
337 vst2q_f32 (p_dst3, q2_out_cdef);
347 float32_t *p_src0, *p_src4, *p_src8, *p_src12;
348 float32x4x2_t q2_in_0123, q2_in_4567, q2_in_89ab, q2_in_cdef;
349 float32x4_t q_t0_r, q_t0_i, q_t1_r, q_t1_i, q_t2_r, q_t2_i, q_t3_r, q_t3_i;
350 float32x4_t q_out_r048c, q_out_i048c, q_out_r159d, q_out_i159d;
351 float32x4_t q_out_r26ae, q_out_i26ae, q_out_r37bf, q_out_i37bf;
352 p_src0 = (float32_t*) (& (Fin[0]));
353 p_src4 = (float32_t*) (& (Fin[4]));
354 p_src8 = (float32_t*) (& (Fin[8]));
355 p_src12 = (float32_t*) (& (Fin[12]));
356 q2_in_0123 = vld2q_f32 (p_src0);
357 q2_in_4567 = vld2q_f32 (p_src4);
358 q2_in_89ab = vld2q_f32 (p_src8);
359 q2_in_cdef = vld2q_f32 (p_src12);
361 q_t2_r = vsubq_f32 (q2_in_0123.val[0], q2_in_89ab.val[0]);
362 q_t2_i = vsubq_f32 (q2_in_0123.val[1], q2_in_89ab.val[1]);
363 q_t3_r = vaddq_f32 (q2_in_0123.val[0], q2_in_89ab.val[0]);
364 q_t3_i = vaddq_f32 (q2_in_0123.val[1], q2_in_89ab.val[1]);
366 q_t0_r = vaddq_f32 (q2_in_4567.val[0], q2_in_cdef.val[0]);
367 q_t0_i = vaddq_f32 (q2_in_4567.val[1], q2_in_cdef.val[1]);
368 q_t1_r = vsubq_f32 (q2_in_4567.val[0], q2_in_cdef.val[0]);
369 q_t1_i = vsubq_f32 (q2_in_4567.val[1], q2_in_cdef.val[1]);
371 q_out_r26ae = vsubq_f32 (q_t3_r, q_t0_r);
372 q_out_i26ae = vsubq_f32 (q_t3_i, q_t0_i);
373 q_out_r048c = vaddq_f32 (q_t3_r, q_t0_r);
374 q_out_i048c = vaddq_f32 (q_t3_i, q_t0_i);
375 q_out_r159d = vsubq_f32 (q_t2_r, q_t1_i);
376 q_out_i159d = vaddq_f32 (q_t2_i, q_t1_r);
377 q_out_r37bf = vaddq_f32 (q_t2_r, q_t1_i);
378 q_out_i37bf = vsubq_f32 (q_t2_i, q_t1_r);
381 float32_t *p_dst0, *p_dst1, *p_dst2, *p_dst3;
382 float32_t *p_tw1, *p_tw2, *p_tw3;
383 float32x4_t q_s0_r, q_s0_i, q_s1_r, q_s1_i, q_s2_r, q_s2_i;
384 float32x4_t q_s3_r, q_s3_i, q_s4_r, q_s4_i, q_s5_r, q_s5_i;
385 float32x4x2_t q2_tmp_0, q2_tmp_1, q2_tmp_2, q2_tmp_3;
386 float32x4_t q_in_r0123, q_in_r4567, q_in_r89ab, q_in_rcdef;
387 float32x4_t q_in_i0123, q_in_i4567, q_in_i89ab, q_in_icdef;
388 float32x4x2_t q2_tw1, q2_tw2, q2_tw3;
389 float32x4x2_t q2_out_0123, q2_out_4567, q2_out_89ab, q2_out_cdef;
390 float32x4_t q_one_by_nfft;
394 p_dst0 = (float32_t*) (&Fout[0]);
395 p_dst1 = (float32_t*) (&Fout[4]);
396 p_dst2 = (float32_t*) (&Fout[8]);
397 p_dst3 = (float32_t*) (&Fout[12]);
398 p_tw1 = (float32_t*) tw1;
399 p_tw2 = (float32_t*) tw2;
400 p_tw3 = (float32_t*) tw3;
401 q2_tmp_0 = vzipq_f32 (q_out_r048c, q_out_r159d);
402 q2_tmp_1 = vzipq_f32 (q_out_i048c, q_out_i159d);
403 q2_tmp_2 = vzipq_f32 (q_out_r26ae, q_out_r37bf);
404 q2_tmp_3 = vzipq_f32 (q_out_i26ae, q_out_i37bf);
405 q_in_r0123 = vcombine_f32 (vget_low_f32 (q2_tmp_0.val[0]), vget_low_f32 (q2_tmp_2.val[0]));
406 q_in_i0123 = vcombine_f32 (vget_low_f32 (q2_tmp_1.val[0]), vget_low_f32 (q2_tmp_3.val[0]));
407 q_in_r4567 = vcombine_f32 (vget_high_f32 (q2_tmp_0.val[0]), vget_high_f32 (q2_tmp_2.val[0]));
408 q_in_i4567 = vcombine_f32 (vget_high_f32 (q2_tmp_1.val[0]), vget_high_f32 (q2_tmp_3.val[0]));
409 q_in_r89ab = vcombine_f32 (vget_low_f32 (q2_tmp_0.val[1]), vget_low_f32 (q2_tmp_2.val[1]));
410 q_in_i89ab = vcombine_f32 (vget_low_f32 (q2_tmp_1.val[1]), vget_low_f32 (q2_tmp_3.val[1]));
411 q_in_rcdef = vcombine_f32 (vget_high_f32 (q2_tmp_0.val[1]), vget_high_f32 (q2_tmp_2.val[1]));
412 q_in_icdef = vcombine_f32 (vget_high_f32 (q2_tmp_1.val[1]), vget_high_f32 (q2_tmp_3.val[1]));
413 q2_tw1 = vld2q_f32 (p_tw1);
414 q2_tw2 = vld2q_f32 (p_tw2);
415 q2_tw3 = vld2q_f32 (p_tw3);
417 q_s0_r = vmulq_f32 (q_in_r4567, q2_tw1.val[0]);
418 q_s0_i = vmulq_f32 (q_in_i4567, q2_tw1.val[0]);
419 q_s1_r = vmulq_f32 (q_in_r89ab, q2_tw2.val[0]);
420 q_s1_i = vmulq_f32 (q_in_i89ab, q2_tw2.val[0]);
421 q_s2_r = vmulq_f32 (q_in_rcdef, q2_tw3.val[0]);
422 q_s2_i = vmulq_f32 (q_in_icdef, q2_tw3.val[0]);
423 q_s0_r = vmlaq_f32 (q_s0_r, q_in_i4567, q2_tw1.val[1]);
424 q_s0_i = vmlsq_f32 (q_s0_i, q_in_r4567, q2_tw1.val[1]);
425 q_s1_r = vmlaq_f32 (q_s1_r, q_in_i89ab, q2_tw2.val[1]);
426 q_s1_i = vmlsq_f32 (q_s1_i, q_in_r89ab, q2_tw2.val[1]);
427 q_s2_r = vmlaq_f32 (q_s2_r, q_in_icdef, q2_tw3.val[1]);
428 q_s2_i = vmlsq_f32 (q_s2_i, q_in_rcdef, q2_tw3.val[1]);
430 q_s5_r = vsubq_f32 (q_in_r0123, q_s1_r);
431 q_s5_i = vsubq_f32 (q_in_i0123, q_s1_i);
432 q2_out_0123.val[0] = vaddq_f32 (q_in_r0123, q_s1_r);
433 q2_out_0123.val[1] = vaddq_f32 (q_in_i0123, q_s1_i);
435 q_s3_r = vaddq_f32 (q_s0_r, q_s2_r);
436 q_s3_i = vaddq_f32 (q_s0_i, q_s2_i);
437 q_s4_r = vsubq_f32 (q_s0_r, q_s2_r);
438 q_s4_i = vsubq_f32 (q_s0_i, q_s2_i);
440 q_one_by_nfft = vdupq_n_f32 (0.0625f);
441 q2_out_89ab.val[0] = vsubq_f32 (q2_out_0123.val[0], q_s3_r);
442 q2_out_89ab.val[1] = vsubq_f32 (q2_out_0123.val[1], q_s3_i);
443 q2_out_0123.val[0] = vaddq_f32 (q2_out_0123.val[0], q_s3_r);
444 q2_out_0123.val[1] = vaddq_f32 (q2_out_0123.val[1], q_s3_i);
446 q2_out_4567.val[0] = vsubq_f32 (q_s5_r, q_s4_i);
447 q2_out_4567.val[1] = vaddq_f32 (q_s5_i, q_s4_r);
448 q2_out_cdef.val[0] = vaddq_f32 (q_s5_r, q_s4_i);
449 q2_out_cdef.val[1] = vsubq_f32 (q_s5_i, q_s4_r);
451 q2_out_89ab.val[0] = vmulq_f32 (q2_out_89ab.val[0], q_one_by_nfft);
452 q2_out_89ab.val[1] = vmulq_f32 (q2_out_89ab.val[1], q_one_by_nfft);
453 q2_out_0123.val[0] = vmulq_f32 (q2_out_0123.val[0], q_one_by_nfft);
454 q2_out_0123.val[1] = vmulq_f32 (q2_out_0123.val[1], q_one_by_nfft);
455 q2_out_4567.val[0] = vmulq_f32 (q2_out_4567.val[0], q_one_by_nfft);
456 q2_out_4567.val[1] = vmulq_f32 (q2_out_4567.val[1], q_one_by_nfft);
457 q2_out_cdef.val[0] = vmulq_f32 (q2_out_cdef.val[0], q_one_by_nfft);
458 q2_out_cdef.val[1] = vmulq_f32 (q2_out_cdef.val[1], q_one_by_nfft);
460 vst2q_f32 (p_dst0, q2_out_0123);
461 vst2q_f32 (p_dst1, q2_out_4567);
462 vst2q_f32 (p_dst2, q2_out_89ab);
463 vst2q_f32 (p_dst3, q2_out_cdef);
470 ne10_int32_t f_count;
471 ne10_int32_t src_step = stride << 1;
473 const ne10_float32_t TW_81 = 0.70710678;
474 const ne10_float32_t TW_81N = -0.70710678;
476 float32_t *p_src, *p_dst;
477 float32x4x2_t q2_in0, q2_in1, q2_in2, q2_in3, q2_in4, q2_in5, q2_in6, q2_in7;
478 float32x4_t q_sin0_r, q_sin0_i, q_sin1_r, q_sin1_i, q_sin2_r, q_sin2_i, q_sin3_r, q_sin3_i;
479 float32x4_t q_sin4_r, q_sin4_i, q_sin5_r, q_sin5_i, q_sin6_r, q_sin6_i, q_sin7_r, q_sin7_i;
480 float32x4_t q_s3_r, q_s3_i, q_s5_r, q_s5_i, q_s7_r, q_s7_i;
481 float32x4_t q_s8_r, q_s8_i, q_s9_r, q_s9_i, q_s10_r, q_s10_i, q_s11_r, q_s11_i;
482 float32x4_t q_s12_r, q_s12_i, q_s13_r, q_s13_i, q_s14_r, q_s14_i, q_s15_r, q_s15_i;
483 float32x4_t q_out0_r, q_out0_i, q_out1_r, q_out1_i, q_out2_r, q_out2_i, q_out3_r, q_out3_i;
484 float32x4_t q_out4_r, q_out4_i, q_out5_r, q_out5_i, q_out6_r, q_out6_i, q_out7_r, q_out7_i;
485 float32x4x2_t q2_tmp0, q2_tmp1, q2_tmp2, q2_tmp3, q2_tmp4, q2_tmp5, q2_tmp6, q2_tmp7;
486 float32x4x2_t q2_out0, q2_out1, q2_out2, q2_out3, q2_out4, q2_out5, q2_out6, q2_out7;
487 float32x4_t q_tw_81, q_tw_81n;
489 p_src = (float32_t *) Fin;
490 p_dst = (float32_t *) Fout;
492 for (f_count = 0; f_count < stride; f_count += 4)
494 q2_in0 = vld2q_f32 (p_src);
496 q2_in2 = vld2q_f32 (p_src);
498 q2_in4 = vld2q_f32 (p_src);
500 q2_in6 = vld2q_f32 (p_src);
502 q2_in1 = vld2q_f32 (p_src);
504 q2_in3 = vld2q_f32 (p_src);
506 q2_in5 = vld2q_f32 (p_src);
508 q2_in7 = vld2q_f32 (p_src);
511 q_sin0_r = vaddq_f32 (q2_in0.val[0], q2_in1.val[0]);
512 q_sin0_i = vaddq_f32 (q2_in0.val[1], q2_in1.val[1]);
513 q_sin1_r = vsubq_f32 (q2_in0.val[0], q2_in1.val[0]);
514 q_sin1_i = vsubq_f32 (q2_in0.val[1], q2_in1.val[1]);
515 q_sin2_r = vaddq_f32 (q2_in2.val[0], q2_in3.val[0]);
516 q_sin2_i = vaddq_f32 (q2_in2.val[1], q2_in3.val[1]);
517 q_sin3_r = vsubq_f32 (q2_in2.val[0], q2_in3.val[0]);
518 q_sin3_i = vsubq_f32 (q2_in2.val[1], q2_in3.val[1]);
519 q_sin4_r = vaddq_f32 (q2_in4.val[0], q2_in5.val[0]);
520 q_sin4_i = vaddq_f32 (q2_in4.val[1], q2_in5.val[1]);
521 q_sin5_r = vsubq_f32 (q2_in4.val[0], q2_in5.val[0]);
522 q_sin5_i = vsubq_f32 (q2_in4.val[1], q2_in5.val[1]);
523 q_sin6_r = vaddq_f32 (q2_in6.val[0], q2_in7.val[0]);
524 q_sin6_i = vaddq_f32 (q2_in6.val[1], q2_in7.val[1]);
525 q_sin7_r = vsubq_f32 (q2_in6.val[0], q2_in7.val[0]);
526 q_sin7_i = vsubq_f32 (q2_in6.val[1], q2_in7.val[1]);
529 q_tw_81 = vdupq_n_f32 (TW_81);
530 q_tw_81n = vdupq_n_f32 (TW_81N);
532 q_s5_i = vnegq_f32 (q_sin5_r);
533 q_s3_r = vaddq_f32 (q_sin3_r, q_sin3_i);
534 q_s3_i = vsubq_f32 (q_sin3_i, q_sin3_r);
535 q_s7_r = vsubq_f32 (q_sin7_r, q_sin7_i);
536 q_s7_i = vaddq_f32 (q_sin7_i, q_sin7_r);
537 q_s3_r = vmulq_f32 (q_s3_r, q_tw_81);
538 q_s3_i = vmulq_f32 (q_s3_i, q_tw_81);
539 q_s7_r = vmulq_f32 (q_s7_r, q_tw_81n);
540 q_s7_i = vmulq_f32 (q_s7_i, q_tw_81n);
543 q_s8_r = vaddq_f32 (q_sin0_r, q_sin4_r);
544 q_s8_i = vaddq_f32 (q_sin0_i, q_sin4_i);
545 q_s9_r = vaddq_f32 (q_sin1_r, q_s5_r);
546 q_s9_i = vaddq_f32 (q_sin1_i, q_s5_i);
547 q_s10_r = vsubq_f32 (q_sin0_r, q_sin4_r);
548 q_s10_i = vsubq_f32 (q_sin0_i, q_sin4_i);
549 q_s11_r = vsubq_f32 (q_sin1_r, q_s5_r);
550 q_s11_i = vsubq_f32 (q_sin1_i, q_s5_i);
553 q_s12_r = vaddq_f32 (q_sin2_r, q_sin6_r);
554 q_s12_i = vaddq_f32 (q_sin2_i, q_sin6_i);
555 q_s13_r = vaddq_f32 (q_s3_r, q_s7_r);
556 q_s13_i = vaddq_f32 (q_s3_i, q_s7_i);
557 q_s14_r = vsubq_f32 (q_sin2_r, q_sin6_r);
558 q_s14_i = vsubq_f32 (q_sin2_i, q_sin6_i);
559 q_s15_r = vsubq_f32 (q_s3_r, q_s7_r);
560 q_s15_i = vsubq_f32 (q_s3_i, q_s7_i);
563 q_out4_r = vsubq_f32 (q_s8_r, q_s12_r);
564 q_out4_i = vsubq_f32 (q_s8_i, q_s12_i);
565 q_out5_r = vsubq_f32 (q_s9_r, q_s13_r);
566 q_out5_i = vsubq_f32 (q_s9_i, q_s13_i);
569 q_out0_r = vaddq_f32 (q_s8_r, q_s12_r);
570 q_out0_i = vaddq_f32 (q_s8_i, q_s12_i);
571 q_out1_r = vaddq_f32 (q_s9_r, q_s13_r);
572 q_out1_i = vaddq_f32 (q_s9_i, q_s13_i);
575 q_out2_r = vaddq_f32 (q_s10_r, q_s14_i);
576 q_out2_i = vsubq_f32 (q_s10_i, q_s14_r);
577 q_out3_r = vaddq_f32 (q_s11_r, q_s15_i);
578 q_out3_i = vsubq_f32 (q_s11_i, q_s15_r);
581 q_out6_r = vsubq_f32 (q_s10_r, q_s14_i);
582 q_out6_i = vaddq_f32 (q_s10_i, q_s14_r);
583 q_out7_r = vsubq_f32 (q_s11_r, q_s15_i);
584 q_out7_i = vaddq_f32 (q_s11_i, q_s15_r);
586 q2_tmp0 = vtrnq_f32 (q_out0_r, q_out1_r);
587 q2_tmp1 = vtrnq_f32 (q_out0_i, q_out1_i);
588 q2_tmp2 = vtrnq_f32 (q_out2_r, q_out3_r);
589 q2_tmp3 = vtrnq_f32 (q_out2_i, q_out3_i);
590 q2_tmp4 = vtrnq_f32 (q_out4_r, q_out5_r);
591 q2_tmp5 = vtrnq_f32 (q_out4_i, q_out5_i);
592 q2_tmp6 = vtrnq_f32 (q_out6_r, q_out7_r);
593 q2_tmp7 = vtrnq_f32 (q_out6_i, q_out7_i);
595 q2_out0.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp0.val[0]), vget_low_f32 (q2_tmp2.val[0]));
596 q2_out0.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp1.val[0]), vget_low_f32 (q2_tmp3.val[0]));
597 q2_out2.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp0.val[1]), vget_low_f32 (q2_tmp2.val[1]));
598 q2_out2.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp1.val[1]), vget_low_f32 (q2_tmp3.val[1]));
599 q2_out4.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp0.val[0]), vget_high_f32 (q2_tmp2.val[0]));
600 q2_out4.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp1.val[0]), vget_high_f32 (q2_tmp3.val[0]));
601 q2_out6.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp0.val[1]), vget_high_f32 (q2_tmp2.val[1]));
602 q2_out6.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp1.val[1]), vget_high_f32 (q2_tmp3.val[1]));
604 q2_out1.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp4.val[0]), vget_low_f32 (q2_tmp6.val[0]));
605 q2_out1.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp5.val[0]), vget_low_f32 (q2_tmp7.val[0]));
606 q2_out3.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp4.val[1]), vget_low_f32 (q2_tmp6.val[1]));
607 q2_out3.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp5.val[1]), vget_low_f32 (q2_tmp7.val[1]));
608 q2_out5.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp4.val[0]), vget_high_f32 (q2_tmp6.val[0]));
609 q2_out5.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp5.val[0]), vget_high_f32 (q2_tmp7.val[0]));
610 q2_out7.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp4.val[1]), vget_high_f32 (q2_tmp6.val[1]));
611 q2_out7.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp5.val[1]), vget_high_f32 (q2_tmp7.val[1]));
614 vst2q_f32 (p_dst, q2_out0);
616 vst2q_f32 (p_dst, q2_out1);
618 vst2q_f32 (p_dst, q2_out2);
620 vst2q_f32 (p_dst, q2_out3);
622 vst2q_f32 (p_dst, q2_out4);
624 vst2q_f32 (p_dst, q2_out5);
626 vst2q_f32 (p_dst, q2_out6);
628 vst2q_f32 (p_dst, q2_out7);
631 p_src = p_src - src_step * 8 + 8;
639 ne10_int32_t f_count;
640 ne10_int32_t src_step = stride << 1;
642 float32_t *p_src, *p_dst;
643 float32x4x2_t q2_in0, q2_in1, q2_in2, q2_in3;
644 float32x4_t q_s0_r, q_s0_i, q_s1_r, q_s1_i, q_s2_r, q_s2_i, q_s3_r, q_s3_i;
645 float32x4_t q_out0_r, q_out0_i, q_out1_r, q_out1_i, q_out2_r, q_out2_i, q_out3_r, q_out3_i;
646 float32x4x2_t q2_tmp0, q2_tmp1, q2_tmp2, q2_tmp3;
647 float32x4x2_t q2_out0, q2_out1, q2_out2, q2_out3;
649 p_src = (float32_t *) Fin;
650 p_dst = (float32_t *) Fout;
652 for (f_count = 0; f_count < stride; f_count += 4)
655 q2_in0 = vld2q_f32 (p_src);
657 q2_in1 = vld2q_f32 (p_src);
659 q2_in2 = vld2q_f32 (p_src);
661 q2_in3 = vld2q_f32 (p_src);
665 q_s0_r = vaddq_f32 (q2_in0.val[0], q2_in2.val[0]);
666 q_s0_i = vaddq_f32 (q2_in0.val[1], q2_in2.val[1]);
667 q_s1_r = vsubq_f32 (q2_in0.val[0], q2_in2.val[0]);
668 q_s1_i = vsubq_f32 (q2_in0.val[1], q2_in2.val[1]);
669 q_s2_r = vaddq_f32 (q2_in1.val[0], q2_in3.val[0]);
670 q_s2_i = vaddq_f32 (q2_in1.val[1], q2_in3.val[1]);
671 q_s3_r = vsubq_f32 (q2_in1.val[0], q2_in3.val[0]);
672 q_s3_i = vsubq_f32 (q2_in1.val[1], q2_in3.val[1]);
675 q_out2_r = vsubq_f32 (q_s0_r, q_s2_r);
676 q_out2_i = vsubq_f32 (q_s0_i, q_s2_i);
677 q_out0_r = vaddq_f32 (q_s0_r, q_s2_r);
678 q_out0_i = vaddq_f32 (q_s0_i, q_s2_i);
680 q_out1_r = vaddq_f32 (q_s1_r, q_s3_i);
681 q_out1_i = vsubq_f32 (q_s1_i, q_s3_r);
682 q_out3_r = vsubq_f32 (q_s1_r, q_s3_i);
683 q_out3_i = vaddq_f32 (q_s1_i, q_s3_r);
685 q2_tmp0 = vtrnq_f32 (q_out0_r, q_out1_r);
686 q2_tmp1 = vtrnq_f32 (q_out0_i, q_out1_i);
687 q2_tmp2 = vtrnq_f32 (q_out2_r, q_out3_r);
688 q2_tmp3 = vtrnq_f32 (q_out2_i, q_out3_i);
689 q2_out0.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp0.val[0]), vget_low_f32 (q2_tmp2.val[0]));
690 q2_out0.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp1.val[0]), vget_low_f32 (q2_tmp3.val[0]));
691 q2_out1.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp0.val[1]), vget_low_f32 (q2_tmp2.val[1]));
692 q2_out1.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp1.val[1]), vget_low_f32 (q2_tmp3.val[1]));
693 q2_out2.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp0.val[0]), vget_high_f32 (q2_tmp2.val[0]));
694 q2_out2.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp1.val[0]), vget_high_f32 (q2_tmp3.val[0]));
695 q2_out3.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp0.val[1]), vget_high_f32 (q2_tmp2.val[1]));
696 q2_out3.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp1.val[1]), vget_high_f32 (q2_tmp3.val[1]));
699 vst2q_f32 (p_dst, q2_out0);
701 vst2q_f32 (p_dst, q2_out1);
703 vst2q_f32 (p_dst, q2_out2);
705 vst2q_f32 (p_dst, q2_out3);
708 p_src = p_src - src_step * 4 + 8;
715 ne10_int32_t src_stride,
716 ne10_int32_t dst_stride,
717 ne10_int32_t mstride)
719 ne10_int32_t m_count;
720 ne10_int32_t src_step = src_stride << 1;
721 ne10_int32_t dst_step = dst_stride << 1;
722 ne10_int32_t tw_step = mstride << 1;
724 float32_t *p_src, *p_dst, *p_tw;
725 float32x4x2_t q2_in0, q2_in1, q2_in2, q2_in3;
726 float32x4x2_t q2_tw0, q2_tw1, q2_tw2;
727 float32x4_t q_s1_r, q_s1_i, q_s2_r, q_s2_i, q_s3_r, q_s3_i;
728 float32x4_t q_s4_r, q_s4_i, q_s5_r, q_s5_i, q_s6_r, q_s6_i, q_s7_r, q_s7_i;
729 float32x4x2_t q2_out0, q2_out1, q2_out2, q2_out3;
731 p_src = (float32_t *) Fin;
732 p_dst = (float32_t *) Fout;
733 p_tw = (float32_t *) tw;
735 for (m_count = 0; m_count < mstride; m_count += 4)
738 q2_in0 = vld2q_f32 (p_src);
740 q2_in1 = vld2q_f32 (p_src);
742 q2_in2 = vld2q_f32 (p_src);
744 q2_in3 = vld2q_f32 (p_src);
747 q2_tw0 = vld2q_f32 (p_tw);
749 q2_tw1 = vld2q_f32 (p_tw);
751 q2_tw2 = vld2q_f32 (p_tw);
753 q_s1_r = vmulq_f32 (q2_in1.val[0], q2_tw0.val[0]);
754 q_s1_i = vmulq_f32 (q2_in1.val[1], q2_tw0.val[0]);
755 q_s2_r = vmulq_f32 (q2_in2.val[0], q2_tw1.val[0]);
756 q_s2_i = vmulq_f32 (q2_in2.val[1], q2_tw1.val[0]);
757 q_s3_r = vmulq_f32 (q2_in3.val[0], q2_tw2.val[0]);
758 q_s3_i = vmulq_f32 (q2_in3.val[1], q2_tw2.val[0]);
759 q_s1_r = vmlsq_f32 (q_s1_r, q2_in1.val[1], q2_tw0.val[1]);
760 q_s1_i = vmlaq_f32 (q_s1_i, q2_in1.val[0], q2_tw0.val[1]);
761 q_s2_r = vmlsq_f32 (q_s2_r, q2_in2.val[1], q2_tw1.val[1]);
762 q_s2_i = vmlaq_f32 (q_s2_i, q2_in2.val[0], q2_tw1.val[1]);
763 q_s3_r = vmlsq_f32 (q_s3_r, q2_in3.val[1], q2_tw2.val[1]);
764 q_s3_i = vmlaq_f32 (q_s3_i, q2_in3.val[0], q2_tw2.val[1]);
766 q_s4_r = vaddq_f32 (q2_in0.val[0], q_s2_r);
767 q_s4_i = vaddq_f32 (q2_in0.val[1], q_s2_i);
768 q_s5_r = vsubq_f32 (q2_in0.val[0], q_s2_r);
769 q_s5_i = vsubq_f32 (q2_in0.val[1], q_s2_i);
771 q_s6_r = vaddq_f32 (q_s1_r, q_s3_r);
772 q_s6_i = vaddq_f32 (q_s1_i, q_s3_i);
773 q_s7_r = vsubq_f32 (q_s1_r, q_s3_r);
774 q_s7_i = vsubq_f32 (q_s1_i, q_s3_i);
776 q2_out2.val[0] = vsubq_f32 (q_s4_r, q_s6_r);
777 q2_out2.val[1] = vsubq_f32 (q_s4_i, q_s6_i);
778 q2_out0.val[0] = vaddq_f32 (q_s4_r, q_s6_r);
779 q2_out0.val[1] = vaddq_f32 (q_s4_i, q_s6_i);
781 q2_out1.val[0] = vaddq_f32 (q_s5_r, q_s7_i);
782 q2_out1.val[1] = vsubq_f32 (q_s5_i, q_s7_r);
783 q2_out3.val[0] = vsubq_f32 (q_s5_r, q_s7_i);
784 q2_out3.val[1] = vaddq_f32 (q_s5_i, q_s7_r);
787 vst2q_f32 (p_dst, q2_out0);
789 vst2q_f32 (p_dst, q2_out1);
791 vst2q_f32 (p_dst, q2_out2);
793 vst2q_f32 (p_dst, q2_out3);
796 p_src = p_src - src_step * 4 + 8;
797 p_dst = p_dst - dst_step * 4 + 8;
798 p_tw = p_tw - tw_step * 2 + 8;
805 ne10_int32_t f_count;
806 ne10_int32_t src_step = stride << 1;
808 const ne10_float32_t TW_81 = 0.70710678;
809 const ne10_float32_t TW_81N = -0.70710678;
811 float32_t *p_src, *p_dst;
812 float32x4x2_t q2_in0, q2_in1, q2_in2, q2_in3, q2_in4, q2_in5, q2_in6, q2_in7;
813 float32x4_t q_sin0_r, q_sin0_i, q_sin1_r, q_sin1_i, q_sin2_r, q_sin2_i, q_sin3_r, q_sin3_i;
814 float32x4_t q_sin4_r, q_sin4_i, q_sin5_r, q_sin5_i, q_sin6_r, q_sin6_i, q_sin7_r, q_sin7_i;
815 float32x4_t q_s3_r, q_s3_i, q_s5_r, q_s5_i, q_s7_r, q_s7_i;
816 float32x4_t q_s8_r, q_s8_i, q_s9_r, q_s9_i, q_s10_r, q_s10_i, q_s11_r, q_s11_i;
817 float32x4_t q_s12_r, q_s12_i, q_s13_r, q_s13_i, q_s14_r, q_s14_i, q_s15_r, q_s15_i;
818 float32x4_t q_out0_r, q_out0_i, q_out1_r, q_out1_i, q_out2_r, q_out2_i, q_out3_r, q_out3_i;
819 float32x4_t q_out4_r, q_out4_i, q_out5_r, q_out5_i, q_out6_r, q_out6_i, q_out7_r, q_out7_i;
820 float32x4x2_t q2_tmp0, q2_tmp1, q2_tmp2, q2_tmp3, q2_tmp4, q2_tmp5, q2_tmp6, q2_tmp7;
821 float32x4x2_t q2_out0, q2_out1, q2_out2, q2_out3, q2_out4, q2_out5, q2_out6, q2_out7;
822 float32x4_t q_tw_81, q_tw_81n;
824 p_src = (float32_t *) Fin;
825 p_dst = (float32_t *) Fout;
827 for (f_count = 0; f_count < stride; f_count += 4)
829 q2_in0 = vld2q_f32 (p_src);
831 q2_in2 = vld2q_f32 (p_src);
833 q2_in4 = vld2q_f32 (p_src);
835 q2_in6 = vld2q_f32 (p_src);
837 q2_in1 = vld2q_f32 (p_src);
839 q2_in3 = vld2q_f32 (p_src);
841 q2_in5 = vld2q_f32 (p_src);
843 q2_in7 = vld2q_f32 (p_src);
846 q_sin0_r = vaddq_f32 (q2_in0.val[0], q2_in1.val[0]);
847 q_sin0_i = vaddq_f32 (q2_in0.val[1], q2_in1.val[1]);
848 q_sin1_r = vsubq_f32 (q2_in0.val[0], q2_in1.val[0]);
849 q_sin1_i = vsubq_f32 (q2_in0.val[1], q2_in1.val[1]);
850 q_sin2_r = vaddq_f32 (q2_in2.val[0], q2_in3.val[0]);
851 q_sin2_i = vaddq_f32 (q2_in2.val[1], q2_in3.val[1]);
852 q_sin3_r = vsubq_f32 (q2_in2.val[0], q2_in3.val[0]);
853 q_sin3_i = vsubq_f32 (q2_in2.val[1], q2_in3.val[1]);
854 q_sin4_r = vaddq_f32 (q2_in4.val[0], q2_in5.val[0]);
855 q_sin4_i = vaddq_f32 (q2_in4.val[1], q2_in5.val[1]);
856 q_sin5_r = vsubq_f32 (q2_in4.val[0], q2_in5.val[0]);
857 q_sin5_i = vsubq_f32 (q2_in4.val[1], q2_in5.val[1]);
858 q_sin6_r = vaddq_f32 (q2_in6.val[0], q2_in7.val[0]);
859 q_sin6_i = vaddq_f32 (q2_in6.val[1], q2_in7.val[1]);
860 q_sin7_r = vsubq_f32 (q2_in6.val[0], q2_in7.val[0]);
861 q_sin7_i = vsubq_f32 (q2_in6.val[1], q2_in7.val[1]);
864 q_tw_81 = vdupq_n_f32 (TW_81);
865 q_tw_81n = vdupq_n_f32 (TW_81N);
866 q_s5_r = vnegq_f32 (q_sin5_i);
868 q_s3_r = vsubq_f32 (q_sin3_r, q_sin3_i);
869 q_s3_i = vaddq_f32 (q_sin3_i, q_sin3_r);
870 q_s7_r = vaddq_f32 (q_sin7_r, q_sin7_i);
871 q_s7_i = vsubq_f32 (q_sin7_i, q_sin7_r);
872 q_s3_r = vmulq_f32 (q_s3_r, q_tw_81);
873 q_s3_i = vmulq_f32 (q_s3_i, q_tw_81);
874 q_s7_r = vmulq_f32 (q_s7_r, q_tw_81n);
875 q_s7_i = vmulq_f32 (q_s7_i, q_tw_81n);
878 q_s8_r = vaddq_f32 (q_sin0_r, q_sin4_r);
879 q_s8_i = vaddq_f32 (q_sin0_i, q_sin4_i);
880 q_s9_r = vaddq_f32 (q_sin1_r, q_s5_r);
881 q_s9_i = vaddq_f32 (q_sin1_i, q_s5_i);
882 q_s10_r = vsubq_f32 (q_sin0_r, q_sin4_r);
883 q_s10_i = vsubq_f32 (q_sin0_i, q_sin4_i);
884 q_s11_r = vsubq_f32 (q_sin1_r, q_s5_r);
885 q_s11_i = vsubq_f32 (q_sin1_i, q_s5_i);
888 q_s12_r = vaddq_f32 (q_sin2_r, q_sin6_r);
889 q_s12_i = vaddq_f32 (q_sin2_i, q_sin6_i);
890 q_s13_r = vaddq_f32 (q_s3_r, q_s7_r);
891 q_s13_i = vaddq_f32 (q_s3_i, q_s7_i);
892 q_s14_r = vsubq_f32 (q_sin2_r, q_sin6_r);
893 q_s14_i = vsubq_f32 (q_sin2_i, q_sin6_i);
894 q_s15_r = vsubq_f32 (q_s3_r, q_s7_r);
895 q_s15_i = vsubq_f32 (q_s3_i, q_s7_i);
898 q_out4_r = vsubq_f32 (q_s8_r, q_s12_r);
899 q_out4_i = vsubq_f32 (q_s8_i, q_s12_i);
900 q_out5_r = vsubq_f32 (q_s9_r, q_s13_r);
901 q_out5_i = vsubq_f32 (q_s9_i, q_s13_i);
904 q_out0_r = vaddq_f32 (q_s8_r, q_s12_r);
905 q_out0_i = vaddq_f32 (q_s8_i, q_s12_i);
906 q_out1_r = vaddq_f32 (q_s9_r, q_s13_r);
907 q_out1_i = vaddq_f32 (q_s9_i, q_s13_i);
910 q_out2_r = vsubq_f32 (q_s10_r, q_s14_i);
911 q_out2_i = vaddq_f32 (q_s10_i, q_s14_r);
912 q_out3_r = vsubq_f32 (q_s11_r, q_s15_i);
913 q_out3_i = vaddq_f32 (q_s11_i, q_s15_r);
916 q_out6_r = vaddq_f32 (q_s10_r, q_s14_i);
917 q_out6_i = vsubq_f32 (q_s10_i, q_s14_r);
918 q_out7_r = vaddq_f32 (q_s11_r, q_s15_i);
919 q_out7_i = vsubq_f32 (q_s11_i, q_s15_r);
921 q2_tmp0 = vtrnq_f32 (q_out0_r, q_out1_r);
922 q2_tmp1 = vtrnq_f32 (q_out0_i, q_out1_i);
923 q2_tmp2 = vtrnq_f32 (q_out2_r, q_out3_r);
924 q2_tmp3 = vtrnq_f32 (q_out2_i, q_out3_i);
925 q2_tmp4 = vtrnq_f32 (q_out4_r, q_out5_r);
926 q2_tmp5 = vtrnq_f32 (q_out4_i, q_out5_i);
927 q2_tmp6 = vtrnq_f32 (q_out6_r, q_out7_r);
928 q2_tmp7 = vtrnq_f32 (q_out6_i, q_out7_i);
930 q2_out0.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp0.val[0]), vget_low_f32 (q2_tmp2.val[0]));
931 q2_out0.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp1.val[0]), vget_low_f32 (q2_tmp3.val[0]));
932 q2_out2.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp0.val[1]), vget_low_f32 (q2_tmp2.val[1]));
933 q2_out2.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp1.val[1]), vget_low_f32 (q2_tmp3.val[1]));
934 q2_out4.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp0.val[0]), vget_high_f32 (q2_tmp2.val[0]));
935 q2_out4.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp1.val[0]), vget_high_f32 (q2_tmp3.val[0]));
936 q2_out6.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp0.val[1]), vget_high_f32 (q2_tmp2.val[1]));
937 q2_out6.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp1.val[1]), vget_high_f32 (q2_tmp3.val[1]));
939 q2_out1.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp4.val[0]), vget_low_f32 (q2_tmp6.val[0]));
940 q2_out1.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp5.val[0]), vget_low_f32 (q2_tmp7.val[0]));
941 q2_out3.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp4.val[1]), vget_low_f32 (q2_tmp6.val[1]));
942 q2_out3.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp5.val[1]), vget_low_f32 (q2_tmp7.val[1]));
943 q2_out5.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp4.val[0]), vget_high_f32 (q2_tmp6.val[0]));
944 q2_out5.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp5.val[0]), vget_high_f32 (q2_tmp7.val[0]));
945 q2_out7.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp4.val[1]), vget_high_f32 (q2_tmp6.val[1]));
946 q2_out7.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp5.val[1]), vget_high_f32 (q2_tmp7.val[1]));
949 vst2q_f32 (p_dst, q2_out0);
951 vst2q_f32 (p_dst, q2_out1);
953 vst2q_f32 (p_dst, q2_out2);
955 vst2q_f32 (p_dst, q2_out3);
957 vst2q_f32 (p_dst, q2_out4);
959 vst2q_f32 (p_dst, q2_out5);
961 vst2q_f32 (p_dst, q2_out6);
963 vst2q_f32 (p_dst, q2_out7);
966 p_src = p_src - src_step * 8 + 8;
974 ne10_int32_t f_count;
975 ne10_int32_t src_step = stride << 1;
977 float32_t *p_src, *p_dst;
978 float32x4x2_t q2_in0, q2_in1, q2_in2, q2_in3;
979 float32x4_t q_s0_r, q_s0_i, q_s1_r, q_s1_i, q_s2_r, q_s2_i, q_s3_r, q_s3_i;
980 float32x4_t q_out0_r, q_out0_i, q_out1_r, q_out1_i, q_out2_r, q_out2_i, q_out3_r, q_out3_i;
981 float32x4x2_t q2_tmp0, q2_tmp1, q2_tmp2, q2_tmp3;
982 float32x4x2_t q2_out0, q2_out1, q2_out2, q2_out3;
984 p_src = (float32_t *) Fin;
985 p_dst = (float32_t *) Fout;
987 for (f_count = 0; f_count < stride; f_count += 4)
990 q2_in0 = vld2q_f32 (p_src);
992 q2_in1 = vld2q_f32 (p_src);
994 q2_in2 = vld2q_f32 (p_src);
996 q2_in3 = vld2q_f32 (p_src);
1000 q_s0_r = vaddq_f32 (q2_in0.val[0], q2_in2.val[0]);
1001 q_s0_i = vaddq_f32 (q2_in0.val[1], q2_in2.val[1]);
1002 q_s1_r = vsubq_f32 (q2_in0.val[0], q2_in2.val[0]);
1003 q_s1_i = vsubq_f32 (q2_in0.val[1], q2_in2.val[1]);
1004 q_s2_r = vaddq_f32 (q2_in1.val[0], q2_in3.val[0]);
1005 q_s2_i = vaddq_f32 (q2_in1.val[1], q2_in3.val[1]);
1006 q_s3_r = vsubq_f32 (q2_in1.val[0], q2_in3.val[0]);
1007 q_s3_i = vsubq_f32 (q2_in1.val[1], q2_in3.val[1]);
1009 q_out2_r = vsubq_f32 (q_s0_r, q_s2_r);
1010 q_out2_i = vsubq_f32 (q_s0_i, q_s2_i);
1011 q_out0_r = vaddq_f32 (q_s0_r, q_s2_r);
1012 q_out0_i = vaddq_f32 (q_s0_i, q_s2_i);
1014 q_out1_r = vsubq_f32 (q_s1_r, q_s3_i);
1015 q_out1_i = vaddq_f32 (q_s1_i, q_s3_r);
1016 q_out3_r = vaddq_f32 (q_s1_r, q_s3_i);
1017 q_out3_i = vsubq_f32 (q_s1_i, q_s3_r);
1019 q2_tmp0 = vtrnq_f32 (q_out0_r, q_out1_r);
1020 q2_tmp1 = vtrnq_f32 (q_out0_i, q_out1_i);
1021 q2_tmp2 = vtrnq_f32 (q_out2_r, q_out3_r);
1022 q2_tmp3 = vtrnq_f32 (q_out2_i, q_out3_i);
1023 q2_out0.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp0.val[0]), vget_low_f32 (q2_tmp2.val[0]));
1024 q2_out0.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp1.val[0]), vget_low_f32 (q2_tmp3.val[0]));
1025 q2_out1.val[0] = vcombine_f32 (vget_low_f32 (q2_tmp0.val[1]), vget_low_f32 (q2_tmp2.val[1]));
1026 q2_out1.val[1] = vcombine_f32 (vget_low_f32 (q2_tmp1.val[1]), vget_low_f32 (q2_tmp3.val[1]));
1027 q2_out2.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp0.val[0]), vget_high_f32 (q2_tmp2.val[0]));
1028 q2_out2.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp1.val[0]), vget_high_f32 (q2_tmp3.val[0]));
1029 q2_out3.val[0] = vcombine_f32 (vget_high_f32 (q2_tmp0.val[1]), vget_high_f32 (q2_tmp2.val[1]));
1030 q2_out3.val[1] = vcombine_f32 (vget_high_f32 (q2_tmp1.val[1]), vget_high_f32 (q2_tmp3.val[1]));
1033 vst2q_f32 (p_dst, q2_out0);
1035 vst2q_f32 (p_dst, q2_out1);
1037 vst2q_f32 (p_dst, q2_out2);
1039 vst2q_f32 (p_dst, q2_out3);
1042 p_src = p_src - src_step * 4 + 8;
1049 ne10_int32_t src_stride,
1050 ne10_int32_t dst_stride,
1051 ne10_int32_t mstride)
1053 ne10_int32_t m_count;
1054 ne10_int32_t src_step = src_stride << 1;
1055 ne10_int32_t dst_step = dst_stride << 1;
1056 ne10_int32_t tw_step = mstride << 1;
1058 float32_t *p_src, *p_dst, *p_tw;
1059 float32x4x2_t q2_in0, q2_in1, q2_in2, q2_in3;
1060 float32x4x2_t q2_tw0, q2_tw1, q2_tw2;
1061 float32x4_t q_s1_r, q_s1_i, q_s2_r, q_s2_i, q_s3_r, q_s3_i;
1062 float32x4_t q_s4_r, q_s4_i, q_s5_r, q_s5_i, q_s6_r, q_s6_i, q_s7_r, q_s7_i;
1063 float32x4x2_t q2_out0, q2_out1, q2_out2, q2_out3;
1065 p_src = (float32_t *) Fin;
1066 p_dst = (float32_t *) Fout;
1067 p_tw = (float32_t *) tw;
1069 for (m_count = 0; m_count < mstride; m_count += 4)
1072 q2_in0 = vld2q_f32 (p_src);
1074 q2_in1 = vld2q_f32 (p_src);
1076 q2_in2 = vld2q_f32 (p_src);
1078 q2_in3 = vld2q_f32 (p_src);
1081 q2_tw0 = vld2q_f32 (p_tw);
1083 q2_tw1 = vld2q_f32 (p_tw);
1085 q2_tw2 = vld2q_f32 (p_tw);
1087 q_s1_r = vmulq_f32 (q2_in1.val[0], q2_tw0.val[0]);
1088 q_s1_i = vmulq_f32 (q2_in1.val[1], q2_tw0.val[0]);
1089 q_s2_r = vmulq_f32 (q2_in2.val[0], q2_tw1.val[0]);
1090 q_s2_i = vmulq_f32 (q2_in2.val[1], q2_tw1.val[0]);
1091 q_s3_r = vmulq_f32 (q2_in3.val[0], q2_tw2.val[0]);
1092 q_s3_i = vmulq_f32 (q2_in3.val[1], q2_tw2.val[0]);
1093 q_s1_r = vmlaq_f32 (q_s1_r, q2_in1.val[1], q2_tw0.val[1]);
1094 q_s1_i = vmlsq_f32 (q_s1_i, q2_in1.val[0], q2_tw0.val[1]);
1095 q_s2_r = vmlaq_f32 (q_s2_r, q2_in2.val[1], q2_tw1.val[1]);
1096 q_s2_i = vmlsq_f32 (q_s2_i, q2_in2.val[0], q2_tw1.val[1]);
1097 q_s3_r = vmlaq_f32 (q_s3_r, q2_in3.val[1], q2_tw2.val[1]);
1098 q_s3_i = vmlsq_f32 (q_s3_i, q2_in3.val[0], q2_tw2.val[1]);
1100 q_s4_r = vaddq_f32 (q2_in0.val[0], q_s2_r);
1101 q_s4_i = vaddq_f32 (q2_in0.val[1], q_s2_i);
1102 q_s5_r = vsubq_f32 (q2_in0.val[0], q_s2_r);
1103 q_s5_i = vsubq_f32 (q2_in0.val[1], q_s2_i);
1105 q_s6_r = vaddq_f32 (q_s1_r, q_s3_r);
1106 q_s6_i = vaddq_f32 (q_s1_i, q_s3_i);
1107 q_s7_r = vsubq_f32 (q_s1_r, q_s3_r);
1108 q_s7_i = vsubq_f32 (q_s1_i, q_s3_i);
1110 q2_out2.val[0] = vsubq_f32 (q_s4_r, q_s6_r);
1111 q2_out2.val[1] = vsubq_f32 (q_s4_i, q_s6_i);
1112 q2_out0.val[0] = vaddq_f32 (q_s4_r, q_s6_r);
1113 q2_out0.val[1] = vaddq_f32 (q_s4_i, q_s6_i);
1115 q2_out1.val[0] = vsubq_f32 (q_s5_r, q_s7_i);
1116 q2_out1.val[1] = vaddq_f32 (q_s5_i, q_s7_r);
1117 q2_out3.val[0] = vaddq_f32 (q_s5_r, q_s7_i);
1118 q2_out3.val[1] = vsubq_f32 (q_s5_i, q_s7_r);
1121 vst2q_f32 (p_dst, q2_out0);
1123 vst2q_f32 (p_dst, q2_out1);
1125 vst2q_f32 (p_dst, q2_out2);
1127 vst2q_f32 (p_dst, q2_out3);
1130 p_src = p_src - src_step * 4 + 8;
1131 p_dst = p_dst - dst_step * 4 + 8;
1132 p_tw = p_tw - tw_step * 2 + 8;
1139 ne10_int32_t src_stride,
1140 ne10_int32_t dst_stride,
1141 ne10_int32_t mstride,
1144 ne10_int32_t m_count;
1145 ne10_int32_t src_step = src_stride << 1;
1146 ne10_int32_t dst_step = dst_stride << 1;
1147 ne10_int32_t tw_step = mstride << 1;
1148 ne10_float32_t one_by_nfft = (1.0f / (ne10_float32_t) nfft);
1150 float32_t *p_src, *p_dst, *p_tw;
1151 float32x4x2_t q2_in0, q2_in1, q2_in2, q2_in3;
1152 float32x4x2_t q2_tw0, q2_tw1, q2_tw2;
1153 float32x4_t q_s1_r, q_s1_i, q_s2_r, q_s2_i, q_s3_r, q_s3_i;
1154 float32x4_t q_s4_r, q_s4_i, q_s5_r, q_s5_i, q_s6_r, q_s6_i, q_s7_r, q_s7_i;
1155 float32x4x2_t q2_out0, q2_out1, q2_out2, q2_out3;
1156 float32x4_t q_one_by_nfft = vdupq_n_f32 (one_by_nfft);
1158 p_src = (float32_t *) Fin;
1159 p_dst = (float32_t *) Fout;
1160 p_tw = (float32_t *) tw;
1162 for (m_count = 0; m_count < mstride; m_count += 4)
1165 q2_in0 = vld2q_f32 (p_src);
1167 q2_in1 = vld2q_f32 (p_src);
1169 q2_in2 = vld2q_f32 (p_src);
1171 q2_in3 = vld2q_f32 (p_src);
1174 q2_tw0 = vld2q_f32 (p_tw);
1176 q2_tw1 = vld2q_f32 (p_tw);
1178 q2_tw2 = vld2q_f32 (p_tw);
1180 q_s1_r = vmulq_f32 (q2_in1.val[0], q2_tw0.val[0]);
1181 q_s1_i = vmulq_f32 (q2_in1.val[1], q2_tw0.val[0]);
1182 q_s2_r = vmulq_f32 (q2_in2.val[0], q2_tw1.val[0]);
1183 q_s2_i = vmulq_f32 (q2_in2.val[1], q2_tw1.val[0]);
1184 q_s3_r = vmulq_f32 (q2_in3.val[0], q2_tw2.val[0]);
1185 q_s3_i = vmulq_f32 (q2_in3.val[1], q2_tw2.val[0]);
1186 q_s1_r = vmlaq_f32 (q_s1_r, q2_in1.val[1], q2_tw0.val[1]);
1187 q_s1_i = vmlsq_f32 (q_s1_i, q2_in1.val[0], q2_tw0.val[1]);
1188 q_s2_r = vmlaq_f32 (q_s2_r, q2_in2.val[1], q2_tw1.val[1]);
1189 q_s2_i = vmlsq_f32 (q_s2_i, q2_in2.val[0], q2_tw1.val[1]);
1190 q_s3_r = vmlaq_f32 (q_s3_r, q2_in3.val[1], q2_tw2.val[1]);
1191 q_s3_i = vmlsq_f32 (q_s3_i, q2_in3.val[0], q2_tw2.val[1]);
1193 q_s4_r = vaddq_f32 (q2_in0.val[0], q_s2_r);
1194 q_s4_i = vaddq_f32 (q2_in0.val[1], q_s2_i);
1195 q_s5_r = vsubq_f32 (q2_in0.val[0], q_s2_r);
1196 q_s5_i = vsubq_f32 (q2_in0.val[1], q_s2_i);
1198 q_s6_r = vaddq_f32 (q_s1_r, q_s3_r);
1199 q_s6_i = vaddq_f32 (q_s1_i, q_s3_i);
1200 q_s7_r = vsubq_f32 (q_s1_r, q_s3_r);
1201 q_s7_i = vsubq_f32 (q_s1_i, q_s3_i);
1203 q2_out2.val[0] = vsubq_f32 (q_s4_r, q_s6_r);
1204 q2_out2.val[1] = vsubq_f32 (q_s4_i, q_s6_i);
1205 q2_out0.val[0] = vaddq_f32 (q_s4_r, q_s6_r);
1206 q2_out0.val[1] = vaddq_f32 (q_s4_i, q_s6_i);
1208 q2_out1.val[0] = vsubq_f32 (q_s5_r, q_s7_i);
1209 q2_out1.val[1] = vaddq_f32 (q_s5_i, q_s7_r);
1210 q2_out3.val[0] = vaddq_f32 (q_s5_r, q_s7_i);
1211 q2_out3.val[1] = vsubq_f32 (q_s5_i, q_s7_r);
1213 q2_out0.val[0] = vmulq_f32 (q2_out0.val[0], q_one_by_nfft);
1214 q2_out0.val[1] = vmulq_f32 (q2_out0.val[1], q_one_by_nfft);
1215 q2_out1.val[0] = vmulq_f32 (q2_out1.val[0], q_one_by_nfft);
1216 q2_out1.val[1] = vmulq_f32 (q2_out1.val[1], q_one_by_nfft);
1217 q2_out2.val[0] = vmulq_f32 (q2_out2.val[0], q_one_by_nfft);
1218 q2_out2.val[1] = vmulq_f32 (q2_out2.val[1], q_one_by_nfft);
1219 q2_out3.val[0] = vmulq_f32 (q2_out3.val[0], q_one_by_nfft);
1220 q2_out3.val[1] = vmulq_f32 (q2_out3.val[1], q_one_by_nfft);
1223 vst2q_f32 (p_dst, q2_out0);
1225 vst2q_f32 (p_dst, q2_out1);
1227 vst2q_f32 (p_dst, q2_out2);
1229 vst2q_f32 (p_dst, q2_out3);
1232 p_src = p_src - src_step * 4 + 8;
1233 p_dst = p_dst - dst_step * 4 + 8;
1234 p_tw = p_tw - tw_step * 2 + 8;
1240 ne10_int32_t * factors,
1244 ne10_int32_t fstride, mstride, N;
1245 ne10_int32_t fstride1;
1246 ne10_int32_t f_count;
1247 ne10_int32_t stage_count;
1255 stage_count = factors[0];
1256 fstride = factors[1];
1257 mstride = factors[ (stage_count << 1) - 1 ];
1258 N = factors[ stage_count << 1 ];
1268 fstride1 = fstride >> 2;
1270 ne10_radix8x4_neon (Fout, Fin, fstride1);
1285 ne10_radix4x4_without_twiddles_neon (Fout, Fin, fstride);
1303 for (; stage_count > 1 ; stage_count--)
1306 for (f_count = 0; f_count < fstride; f_count ++)
1308 Fout1 = & Fout[ f_count * mstride << 2 ];
1310 ne10_radix4x4_with_twiddles_neon (Fout1, Fin1, tw1, N, mstride, mstride);
1330 for (f_count = 0; f_count < fstride; f_count ++)
1333 ne10_radix4x4_with_twiddles_neon (Fout1, Fin1, tw1, N, N, mstride);
1342 ne10_int32_t * factors,
1346 ne10_int32_t fstride, mstride, N;
1347 ne10_int32_t fstride1;
1348 ne10_int32_t f_count;
1349 ne10_int32_t stage_count;
1358 stage_count = factors[0];
1359 fstride = factors[1];
1360 mstride = factors[ (stage_count << 1) - 1 ];
1361 N = factors[ stage_count << 1 ];
1372 fstride1 = fstride >> 2;
1374 ne10_radix8x4_inverse_neon (Fout, Fin, fstride1);
1389 ne10_radix4x4_inverse_without_twiddles_neon (Fout, Fin, fstride);
1406 for (; stage_count > 1 ; stage_count--)
1409 for (f_count = 0; f_count < fstride; f_count ++)
1411 Fout1 = & Fout[ f_count * mstride << 2 ];
1413 ne10_radix4x4_inverse_with_twiddles_neon (Fout1, Fin1, tw1, N, mstride, mstride);
1433 for (f_count = 0; f_count < fstride; f_count ++)
1436 ne10_radix4x4_inverse_with_twiddles_last_stage_neon (Fout1, Fin1, tw1, N, N, mstride, nfft);
1462 ne10_int32_t inverse_fft)
1472 ne10_int32_t stage_count = cfg->factors[0];
1473 ne10_int32_t algorithm_flag = cfg->factors[2 * (stage_count + 1)];
1475 assert ((algorithm_flag == NE10_FFT_ALG_24)
1476 || (algorithm_flag == NE10_FFT_ALG_ANY));
1480 if (algorithm_flag == NE10_FFT_ALG_ANY)
1484 ne10_mixed_radix_generic_butterfly_inverse_float32_neon (fout, fin,
1489 ne10_mixed_radix_generic_butterfly_float32_neon (fout, fin,
1502 ne10_fft4_backward_float32 (fout, fin);
1505 ne10_fft8_backward_float32 (fout, fin);
1508 ne10_fft16_backward_float32_neon (fout, fin, cfg->twiddles);
1511 ne10_mixed_radix_fft_backward_float32_neon (fout, fin, cfg->factors, cfg->twiddles, cfg->buffer);
1520 ne10_fft4_forward_float32 (fout, fin);
1523 ne10_fft8_forward_float32 (fout, fin);
1526 ne10_fft16_forward_float32_neon (fout, fin, cfg->twiddles);
1529 ne10_mixed_radix_fft_forward_float32_neon (fout, fin, cfg->factors, cfg->twiddles, cfg->buffer);