1 /* Copyright (c) 2014, Cisco Systems, INC
2 Written by XiangMingZhu WeiZhou MinPeng YanWang
3
4 Redistribution and use in source and binary forms, with or without
5 modification, are permitted provided that the following conditions
6 are met:
7
8 - Redistributions of source code must retain the above copyright
9 notice, this list of conditions and the following disclaimer.
10
11 - Redistributions in binary form must reproduce the above copyright
12 notice, this list of conditions and the following disclaimer in the
13 documentation and/or other materials provided with the distribution.
14
15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #ifdef HAVE_CONFIG_H
29 #include "config.h"
30 #endif
31
32 #include <xmmintrin.h>
33 #include <emmintrin.h>
34
35 #include "macros.h"
36 #include "celt_lpc.h"
37 #include "stack_alloc.h"
38 #include "mathops.h"
39 #include "pitch.h"
40
41 #if defined(OPUS_X86_MAY_HAVE_SSE4_1) && defined(FIXED_POINT)
42 #include <smmintrin.h>
43 #include "x86cpu.h"
44
celt_inner_prod_sse4_1(const opus_val16 * x,const opus_val16 * y,int N)45 opus_val32 celt_inner_prod_sse4_1(const opus_val16 *x, const opus_val16 *y,
46 int N)
47 {
48 opus_int i, dataSize16;
49 opus_int32 sum;
50 __m128i inVec1_76543210, inVec1_FEDCBA98, acc1;
51 __m128i inVec2_76543210, inVec2_FEDCBA98, acc2;
52 __m128i inVec1_3210, inVec2_3210;
53
54 sum = 0;
55 dataSize16 = N & ~15;
56
57 acc1 = _mm_setzero_si128();
58 acc2 = _mm_setzero_si128();
59
60 for (i=0;i<dataSize16;i+=16) {
61 inVec1_76543210 = _mm_loadu_si128((__m128i *)(&x[i + 0]));
62 inVec2_76543210 = _mm_loadu_si128((__m128i *)(&y[i + 0]));
63
64 inVec1_FEDCBA98 = _mm_loadu_si128((__m128i *)(&x[i + 8]));
65 inVec2_FEDCBA98 = _mm_loadu_si128((__m128i *)(&y[i + 8]));
66
67 inVec1_76543210 = _mm_madd_epi16(inVec1_76543210, inVec2_76543210);
68 inVec1_FEDCBA98 = _mm_madd_epi16(inVec1_FEDCBA98, inVec2_FEDCBA98);
69
70 acc1 = _mm_add_epi32(acc1, inVec1_76543210);
71 acc2 = _mm_add_epi32(acc2, inVec1_FEDCBA98);
72 }
73
74 acc1 = _mm_add_epi32(acc1, acc2);
75
76 if (N - i >= 8)
77 {
78 inVec1_76543210 = _mm_loadu_si128((__m128i *)(&x[i + 0]));
79 inVec2_76543210 = _mm_loadu_si128((__m128i *)(&y[i + 0]));
80
81 inVec1_76543210 = _mm_madd_epi16(inVec1_76543210, inVec2_76543210);
82
83 acc1 = _mm_add_epi32(acc1, inVec1_76543210);
84 i += 8;
85 }
86
87 if (N - i >= 4)
88 {
89 inVec1_3210 = OP_CVTEPI16_EPI32_M64(&x[i + 0]);
90 inVec2_3210 = OP_CVTEPI16_EPI32_M64(&y[i + 0]);
91
92 inVec1_3210 = _mm_mullo_epi32(inVec1_3210, inVec2_3210);
93
94 acc1 = _mm_add_epi32(acc1, inVec1_3210);
95 i += 4;
96 }
97
98 acc1 = _mm_add_epi32(acc1, _mm_unpackhi_epi64(acc1, acc1));
99 acc1 = _mm_add_epi32(acc1, _mm_shufflelo_epi16(acc1, 0x0E));
100
101 sum += _mm_cvtsi128_si32(acc1);
102
103 for (;i<N;i++)
104 {
105 sum = silk_SMLABB(sum, x[i], y[i]);
106 }
107
108 return sum;
109 }
110
xcorr_kernel_sse4_1(const opus_val16 * x,const opus_val16 * y,opus_val32 sum[4],int len)111 void xcorr_kernel_sse4_1(const opus_val16 * x, const opus_val16 * y, opus_val32 sum[ 4 ], int len)
112 {
113 int j;
114
115 __m128i vecX, vecX0, vecX1, vecX2, vecX3;
116 __m128i vecY0, vecY1, vecY2, vecY3;
117 __m128i sum0, sum1, sum2, sum3, vecSum;
118 __m128i initSum;
119
120 #ifdef OPUS_CHECK_ASM
121 opus_val32 sum_c[4];
122 for (j=0;j<4;j++) {
123 sum_c[j] = sum[j];
124 }
125 xcorr_kernel_c(x, y, sum_c, len);
126 #endif
127
128 celt_assert(len >= 3);
129
130 sum0 = _mm_setzero_si128();
131 sum1 = _mm_setzero_si128();
132 sum2 = _mm_setzero_si128();
133 sum3 = _mm_setzero_si128();
134
135 for (j=0;j<(len-7);j+=8)
136 {
137 vecX = _mm_loadu_si128((__m128i *)(&x[j + 0]));
138 vecY0 = _mm_loadu_si128((__m128i *)(&y[j + 0]));
139 vecY1 = _mm_loadu_si128((__m128i *)(&y[j + 1]));
140 vecY2 = _mm_loadu_si128((__m128i *)(&y[j + 2]));
141 vecY3 = _mm_loadu_si128((__m128i *)(&y[j + 3]));
142
143 sum0 = _mm_add_epi32(sum0, _mm_madd_epi16(vecX, vecY0));
144 sum1 = _mm_add_epi32(sum1, _mm_madd_epi16(vecX, vecY1));
145 sum2 = _mm_add_epi32(sum2, _mm_madd_epi16(vecX, vecY2));
146 sum3 = _mm_add_epi32(sum3, _mm_madd_epi16(vecX, vecY3));
147 }
148
149 sum0 = _mm_add_epi32(sum0, _mm_unpackhi_epi64( sum0, sum0));
150 sum0 = _mm_add_epi32(sum0, _mm_shufflelo_epi16( sum0, 0x0E));
151
152 sum1 = _mm_add_epi32(sum1, _mm_unpackhi_epi64( sum1, sum1));
153 sum1 = _mm_add_epi32(sum1, _mm_shufflelo_epi16( sum1, 0x0E));
154
155 sum2 = _mm_add_epi32(sum2, _mm_unpackhi_epi64( sum2, sum2));
156 sum2 = _mm_add_epi32(sum2, _mm_shufflelo_epi16( sum2, 0x0E));
157
158 sum3 = _mm_add_epi32(sum3, _mm_unpackhi_epi64( sum3, sum3));
159 sum3 = _mm_add_epi32(sum3, _mm_shufflelo_epi16( sum3, 0x0E));
160
161 vecSum = _mm_unpacklo_epi64(_mm_unpacklo_epi32(sum0, sum1),
162 _mm_unpacklo_epi32(sum2, sum3));
163
164 for (;j<(len-3);j+=4)
165 {
166 vecX = OP_CVTEPI16_EPI32_M64(&x[j + 0]);
167 vecX0 = _mm_shuffle_epi32(vecX, 0x00);
168 vecX1 = _mm_shuffle_epi32(vecX, 0x55);
169 vecX2 = _mm_shuffle_epi32(vecX, 0xaa);
170 vecX3 = _mm_shuffle_epi32(vecX, 0xff);
171
172 vecY0 = OP_CVTEPI16_EPI32_M64(&y[j + 0]);
173 vecY1 = OP_CVTEPI16_EPI32_M64(&y[j + 1]);
174 vecY2 = OP_CVTEPI16_EPI32_M64(&y[j + 2]);
175 vecY3 = OP_CVTEPI16_EPI32_M64(&y[j + 3]);
176
177 sum0 = _mm_mullo_epi32(vecX0, vecY0);
178 sum1 = _mm_mullo_epi32(vecX1, vecY1);
179 sum2 = _mm_mullo_epi32(vecX2, vecY2);
180 sum3 = _mm_mullo_epi32(vecX3, vecY3);
181
182 sum0 = _mm_add_epi32(sum0, sum1);
183 sum2 = _mm_add_epi32(sum2, sum3);
184 vecSum = _mm_add_epi32(vecSum, sum0);
185 vecSum = _mm_add_epi32(vecSum, sum2);
186 }
187
188 vecX = OP_CVTEPI16_EPI32_M64(&x[len - 4]);
189 if (len - j == 3)
190 {
191 vecX0 = _mm_shuffle_epi32(vecX, 0x55);
192 vecX1 = _mm_shuffle_epi32(vecX, 0xaa);
193 vecX2 = _mm_shuffle_epi32(vecX, 0xff);
194
195 vecY0 = OP_CVTEPI16_EPI32_M64(&y[j + 0]);
196 vecY1 = OP_CVTEPI16_EPI32_M64(&y[j + 1]);
197 vecY2 = OP_CVTEPI16_EPI32_M64(&y[j + 2]);
198
199 sum0 = _mm_mullo_epi32(vecX0, vecY0);
200 sum1 = _mm_mullo_epi32(vecX1, vecY1);
201 sum2 = _mm_mullo_epi32(vecX2, vecY2);
202
203 vecSum = _mm_add_epi32(vecSum, sum0);
204 vecSum = _mm_add_epi32(vecSum, sum1);
205 vecSum = _mm_add_epi32(vecSum, sum2);
206 }
207 else if (len - j == 2)
208 {
209 vecX0 = _mm_shuffle_epi32(vecX, 0xaa);
210 vecX1 = _mm_shuffle_epi32(vecX, 0xff);
211
212 vecY0 = OP_CVTEPI16_EPI32_M64(&y[j + 0]);
213 vecY1 = OP_CVTEPI16_EPI32_M64(&y[j + 1]);
214
215 sum0 = _mm_mullo_epi32(vecX0, vecY0);
216 sum1 = _mm_mullo_epi32(vecX1, vecY1);
217
218 vecSum = _mm_add_epi32(vecSum, sum0);
219 vecSum = _mm_add_epi32(vecSum, sum1);
220 }
221 else if (len - j == 1)
222 {
223 vecX0 = _mm_shuffle_epi32(vecX, 0xff);
224
225 vecY0 = OP_CVTEPI16_EPI32_M64(&y[j + 0]);
226
227 sum0 = _mm_mullo_epi32(vecX0, vecY0);
228
229 vecSum = _mm_add_epi32(vecSum, sum0);
230 }
231
232 initSum = _mm_loadu_si128((__m128i *)(&sum[0]));
233 initSum = _mm_add_epi32(initSum, vecSum);
234 _mm_storeu_si128((__m128i *)sum, initSum);
235
236 #ifdef OPUS_CHECK_ASM
237 celt_assert(!memcmp(sum_c, sum, sizeof(sum_c)));
238 #endif
239 }
240 #endif
241