1 /* Copyright (C) 2002 Jean-Marc Valin */
2 /**
3 @file filters_sse.h
4 @brief Various analysis/synthesis filters (SSE version)
5 */
6 /*
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions
9 are met:
10
11 - Redistributions of source code must retain the above copyright
12 notice, this list of conditions and the following disclaimer.
13
14 - Redistributions in binary form must reproduce the above copyright
15 notice, this list of conditions and the following disclaimer in the
16 documentation and/or other materials provided with the distribution.
17
18 - Neither the name of the Xiph.org Foundation nor the names of its
19 contributors may be used to endorse or promote products derived from
20 this software without specific prior written permission.
21
22 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
26 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <xmmintrin.h>
36
filter_mem2_10(const float * x,const float * _num,const float * _den,float * y,int N,int ord,float * _mem)37 void filter_mem2_10(const float *x, const float *_num, const float *_den, float *y, int N, int ord, float *_mem)
38 {
39 __m128 num[3], den[3], mem[3];
40
41 int i;
42
43 /* Copy numerator, denominator and memory to aligned xmm */
44 for (i=0;i<2;i++)
45 {
46 mem[i] = _mm_loadu_ps(_mem+4*i);
47 num[i] = _mm_loadu_ps(_num+4*i);
48 den[i] = _mm_loadu_ps(_den+4*i);
49 }
50 mem[2] = _mm_setr_ps(_mem[8], _mem[9], 0, 0);
51 num[2] = _mm_setr_ps(_num[8], _num[9], 0, 0);
52 den[2] = _mm_setr_ps(_den[8], _den[9], 0, 0);
53
54 for (i=0;i<N;i++)
55 {
56 __m128 xx;
57 __m128 yy;
58 /* Compute next filter result */
59 xx = _mm_load_ps1(x+i);
60 yy = _mm_add_ss(xx, mem[0]);
61 _mm_store_ss(y+i, yy);
62 yy = _mm_shuffle_ps(yy, yy, 0);
63
64 /* Update memory */
65 mem[0] = _mm_move_ss(mem[0], mem[1]);
66 mem[0] = _mm_shuffle_ps(mem[0], mem[0], 0x39);
67
68 mem[0] = _mm_add_ps(mem[0], _mm_mul_ps(xx, num[0]));
69 mem[0] = _mm_sub_ps(mem[0], _mm_mul_ps(yy, den[0]));
70
71 mem[1] = _mm_move_ss(mem[1], mem[2]);
72 mem[1] = _mm_shuffle_ps(mem[1], mem[1], 0x39);
73
74 mem[1] = _mm_add_ps(mem[1], _mm_mul_ps(xx, num[1]));
75 mem[1] = _mm_sub_ps(mem[1], _mm_mul_ps(yy, den[1]));
76
77 mem[2] = _mm_shuffle_ps(mem[2], mem[2], 0xfd);
78
79 mem[2] = _mm_add_ps(mem[2], _mm_mul_ps(xx, num[2]));
80 mem[2] = _mm_sub_ps(mem[2], _mm_mul_ps(yy, den[2]));
81 }
82 /* Put memory back in its place */
83 _mm_storeu_ps(_mem, mem[0]);
84 _mm_storeu_ps(_mem+4, mem[1]);
85 _mm_store_ss(_mem+8, mem[2]);
86 mem[2] = _mm_shuffle_ps(mem[2], mem[2], 0x55);
87 _mm_store_ss(_mem+9, mem[2]);
88 }
89
filter_mem2_8(const float * x,const float * _num,const float * _den,float * y,int N,int ord,float * _mem)90 void filter_mem2_8(const float *x, const float *_num, const float *_den, float *y, int N, int ord, float *_mem)
91 {
92 __m128 num[2], den[2], mem[2];
93
94 int i;
95
96 /* Copy numerator, denominator and memory to aligned xmm */
97 for (i=0;i<2;i++)
98 {
99 mem[i] = _mm_loadu_ps(_mem+4*i);
100 num[i] = _mm_loadu_ps(_num+4*i);
101 den[i] = _mm_loadu_ps(_den+4*i);
102 }
103
104 for (i=0;i<N;i++)
105 {
106 __m128 xx;
107 __m128 yy;
108 /* Compute next filter result */
109 xx = _mm_load_ps1(x+i);
110 yy = _mm_add_ss(xx, mem[0]);
111 _mm_store_ss(y+i, yy);
112 yy = _mm_shuffle_ps(yy, yy, 0);
113
114 /* Update memory */
115 mem[0] = _mm_move_ss(mem[0], mem[1]);
116 mem[0] = _mm_shuffle_ps(mem[0], mem[0], 0x39);
117
118 mem[0] = _mm_add_ps(mem[0], _mm_mul_ps(xx, num[0]));
119 mem[0] = _mm_sub_ps(mem[0], _mm_mul_ps(yy, den[0]));
120
121 mem[1] = _mm_sub_ss(mem[1], mem[1]);
122 mem[1] = _mm_shuffle_ps(mem[1], mem[1], 0x39);
123
124 mem[1] = _mm_add_ps(mem[1], _mm_mul_ps(xx, num[1]));
125 mem[1] = _mm_sub_ps(mem[1], _mm_mul_ps(yy, den[1]));
126 }
127 /* Put memory back in its place */
128 _mm_storeu_ps(_mem, mem[0]);
129 _mm_storeu_ps(_mem+4, mem[1]);
130 }
131
132
133 #define OVERRIDE_FILTER_MEM2
filter_mem2(const float * x,const float * _num,const float * _den,float * y,int N,int ord,float * _mem)134 void filter_mem2(const float *x, const float *_num, const float *_den, float *y, int N, int ord, float *_mem)
135 {
136 if(ord==10)
137 filter_mem2_10(x, _num, _den, y, N, ord, _mem);
138 else if (ord==8)
139 filter_mem2_8(x, _num, _den, y, N, ord, _mem);
140 }
141
142
143
iir_mem2_10(const float * x,const float * _den,float * y,int N,int ord,float * _mem)144 void iir_mem2_10(const float *x, const float *_den, float *y, int N, int ord, float *_mem)
145 {
146 __m128 den[3], mem[3];
147
148 int i;
149
150 /* Copy numerator, denominator and memory to aligned xmm */
151 for (i=0;i<2;i++)
152 {
153 mem[i] = _mm_loadu_ps(_mem+4*i);
154 den[i] = _mm_loadu_ps(_den+4*i);
155 }
156 mem[2] = _mm_setr_ps(_mem[8], _mem[9], 0, 0);
157 den[2] = _mm_setr_ps(_den[8], _den[9], 0, 0);
158
159 for (i=0;i<N;i++)
160 {
161 __m128 xx;
162 __m128 yy;
163 /* Compute next filter result */
164 xx = _mm_load_ps1(x+i);
165 yy = _mm_add_ss(xx, mem[0]);
166 _mm_store_ss(y+i, yy);
167 yy = _mm_shuffle_ps(yy, yy, 0);
168
169 /* Update memory */
170 mem[0] = _mm_move_ss(mem[0], mem[1]);
171 mem[0] = _mm_shuffle_ps(mem[0], mem[0], 0x39);
172
173 mem[0] = _mm_sub_ps(mem[0], _mm_mul_ps(yy, den[0]));
174
175 mem[1] = _mm_move_ss(mem[1], mem[2]);
176 mem[1] = _mm_shuffle_ps(mem[1], mem[1], 0x39);
177
178 mem[1] = _mm_sub_ps(mem[1], _mm_mul_ps(yy, den[1]));
179
180 mem[2] = _mm_shuffle_ps(mem[2], mem[2], 0xfd);
181
182 mem[2] = _mm_sub_ps(mem[2], _mm_mul_ps(yy, den[2]));
183 }
184 /* Put memory back in its place */
185 _mm_storeu_ps(_mem, mem[0]);
186 _mm_storeu_ps(_mem+4, mem[1]);
187 _mm_store_ss(_mem+8, mem[2]);
188 mem[2] = _mm_shuffle_ps(mem[2], mem[2], 0x55);
189 _mm_store_ss(_mem+9, mem[2]);
190 }
191
192
iir_mem2_8(const float * x,const float * _den,float * y,int N,int ord,float * _mem)193 void iir_mem2_8(const float *x, const float *_den, float *y, int N, int ord, float *_mem)
194 {
195 __m128 den[2], mem[2];
196
197 int i;
198
199 /* Copy numerator, denominator and memory to aligned xmm */
200 for (i=0;i<2;i++)
201 {
202 mem[i] = _mm_loadu_ps(_mem+4*i);
203 den[i] = _mm_loadu_ps(_den+4*i);
204 }
205
206 for (i=0;i<N;i++)
207 {
208 __m128 xx;
209 __m128 yy;
210 /* Compute next filter result */
211 xx = _mm_load_ps1(x+i);
212 yy = _mm_add_ss(xx, mem[0]);
213 _mm_store_ss(y+i, yy);
214 yy = _mm_shuffle_ps(yy, yy, 0);
215
216 /* Update memory */
217 mem[0] = _mm_move_ss(mem[0], mem[1]);
218 mem[0] = _mm_shuffle_ps(mem[0], mem[0], 0x39);
219
220 mem[0] = _mm_sub_ps(mem[0], _mm_mul_ps(yy, den[0]));
221
222 mem[1] = _mm_sub_ss(mem[1], mem[1]);
223 mem[1] = _mm_shuffle_ps(mem[1], mem[1], 0x39);
224
225 mem[1] = _mm_sub_ps(mem[1], _mm_mul_ps(yy, den[1]));
226 }
227 /* Put memory back in its place */
228 _mm_storeu_ps(_mem, mem[0]);
229 _mm_storeu_ps(_mem+4, mem[1]);
230 }
231
232 #define OVERRIDE_IIR_MEM2
iir_mem2(const float * x,const float * _den,float * y,int N,int ord,float * _mem)233 void iir_mem2(const float *x, const float *_den, float *y, int N, int ord, float *_mem)
234 {
235 if(ord==10)
236 iir_mem2_10(x, _den, y, N, ord, _mem);
237 else if (ord==8)
238 iir_mem2_8(x, _den, y, N, ord, _mem);
239 }
240
241
fir_mem2_10(const float * x,const float * _num,float * y,int N,int ord,float * _mem)242 void fir_mem2_10(const float *x, const float *_num, float *y, int N, int ord, float *_mem)
243 {
244 __m128 num[3], mem[3];
245
246 int i;
247
248 /* Copy numerator, denominator and memory to aligned xmm */
249 for (i=0;i<2;i++)
250 {
251 mem[i] = _mm_loadu_ps(_mem+4*i);
252 num[i] = _mm_loadu_ps(_num+4*i);
253 }
254 mem[2] = _mm_setr_ps(_mem[8], _mem[9], 0, 0);
255 num[2] = _mm_setr_ps(_num[8], _num[9], 0, 0);
256
257 for (i=0;i<N;i++)
258 {
259 __m128 xx;
260 __m128 yy;
261 /* Compute next filter result */
262 xx = _mm_load_ps1(x+i);
263 yy = _mm_add_ss(xx, mem[0]);
264 _mm_store_ss(y+i, yy);
265 yy = _mm_shuffle_ps(yy, yy, 0);
266
267 /* Update memory */
268 mem[0] = _mm_move_ss(mem[0], mem[1]);
269 mem[0] = _mm_shuffle_ps(mem[0], mem[0], 0x39);
270
271 mem[0] = _mm_add_ps(mem[0], _mm_mul_ps(xx, num[0]));
272
273 mem[1] = _mm_move_ss(mem[1], mem[2]);
274 mem[1] = _mm_shuffle_ps(mem[1], mem[1], 0x39);
275
276 mem[1] = _mm_add_ps(mem[1], _mm_mul_ps(xx, num[1]));
277
278 mem[2] = _mm_shuffle_ps(mem[2], mem[2], 0xfd);
279
280 mem[2] = _mm_add_ps(mem[2], _mm_mul_ps(xx, num[2]));
281 }
282 /* Put memory back in its place */
283 _mm_storeu_ps(_mem, mem[0]);
284 _mm_storeu_ps(_mem+4, mem[1]);
285 _mm_store_ss(_mem+8, mem[2]);
286 mem[2] = _mm_shuffle_ps(mem[2], mem[2], 0x55);
287 _mm_store_ss(_mem+9, mem[2]);
288 }
289
fir_mem2_8(const float * x,const float * _num,float * y,int N,int ord,float * _mem)290 void fir_mem2_8(const float *x, const float *_num, float *y, int N, int ord, float *_mem)
291 {
292 __m128 num[2], mem[2];
293
294 int i;
295
296 /* Copy numerator, denominator and memory to aligned xmm */
297 for (i=0;i<2;i++)
298 {
299 mem[i] = _mm_loadu_ps(_mem+4*i);
300 num[i] = _mm_loadu_ps(_num+4*i);
301 }
302
303 for (i=0;i<N;i++)
304 {
305 __m128 xx;
306 __m128 yy;
307 /* Compute next filter result */
308 xx = _mm_load_ps1(x+i);
309 yy = _mm_add_ss(xx, mem[0]);
310 _mm_store_ss(y+i, yy);
311 yy = _mm_shuffle_ps(yy, yy, 0);
312
313 /* Update memory */
314 mem[0] = _mm_move_ss(mem[0], mem[1]);
315 mem[0] = _mm_shuffle_ps(mem[0], mem[0], 0x39);
316
317 mem[0] = _mm_add_ps(mem[0], _mm_mul_ps(xx, num[0]));
318
319 mem[1] = _mm_sub_ss(mem[1], mem[1]);
320 mem[1] = _mm_shuffle_ps(mem[1], mem[1], 0x39);
321
322 mem[1] = _mm_add_ps(mem[1], _mm_mul_ps(xx, num[1]));
323 }
324 /* Put memory back in its place */
325 _mm_storeu_ps(_mem, mem[0]);
326 _mm_storeu_ps(_mem+4, mem[1]);
327 }
328
329 #define OVERRIDE_FIR_MEM2
fir_mem2(const float * x,const float * _num,float * y,int N,int ord,float * _mem)330 void fir_mem2(const float *x, const float *_num, float *y, int N, int ord, float *_mem)
331 {
332 if(ord==10)
333 fir_mem2_10(x, _num, y, N, ord, _mem);
334 else if (ord==8)
335 fir_mem2_8(x, _num, y, N, ord, _mem);
336 }
337