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 celt_assert(len >= 3);
121
122 sum0 = _mm_setzero_si128();
123 sum1 = _mm_setzero_si128();
124 sum2 = _mm_setzero_si128();
125 sum3 = _mm_setzero_si128();
126
127 for (j=0;j<(len-7);j+=8)
128 {
129 vecX = _mm_loadu_si128((__m128i *)(&x[j + 0]));
130 vecY0 = _mm_loadu_si128((__m128i *)(&y[j + 0]));
131 vecY1 = _mm_loadu_si128((__m128i *)(&y[j + 1]));
132 vecY2 = _mm_loadu_si128((__m128i *)(&y[j + 2]));
133 vecY3 = _mm_loadu_si128((__m128i *)(&y[j + 3]));
134
135 sum0 = _mm_add_epi32(sum0, _mm_madd_epi16(vecX, vecY0));
136 sum1 = _mm_add_epi32(sum1, _mm_madd_epi16(vecX, vecY1));
137 sum2 = _mm_add_epi32(sum2, _mm_madd_epi16(vecX, vecY2));
138 sum3 = _mm_add_epi32(sum3, _mm_madd_epi16(vecX, vecY3));
139 }
140
141 sum0 = _mm_add_epi32(sum0, _mm_unpackhi_epi64( sum0, sum0));
142 sum0 = _mm_add_epi32(sum0, _mm_shufflelo_epi16( sum0, 0x0E));
143
144 sum1 = _mm_add_epi32(sum1, _mm_unpackhi_epi64( sum1, sum1));
145 sum1 = _mm_add_epi32(sum1, _mm_shufflelo_epi16( sum1, 0x0E));
146
147 sum2 = _mm_add_epi32(sum2, _mm_unpackhi_epi64( sum2, sum2));
148 sum2 = _mm_add_epi32(sum2, _mm_shufflelo_epi16( sum2, 0x0E));
149
150 sum3 = _mm_add_epi32(sum3, _mm_unpackhi_epi64( sum3, sum3));
151 sum3 = _mm_add_epi32(sum3, _mm_shufflelo_epi16( sum3, 0x0E));
152
153 vecSum = _mm_unpacklo_epi64(_mm_unpacklo_epi32(sum0, sum1),
154 _mm_unpacklo_epi32(sum2, sum3));
155
156 for (;j<(len-3);j+=4)
157 {
158 vecX = OP_CVTEPI16_EPI32_M64(&x[j + 0]);
159 vecX0 = _mm_shuffle_epi32(vecX, 0x00);
160 vecX1 = _mm_shuffle_epi32(vecX, 0x55);
161 vecX2 = _mm_shuffle_epi32(vecX, 0xaa);
162 vecX3 = _mm_shuffle_epi32(vecX, 0xff);
163
164 vecY0 = OP_CVTEPI16_EPI32_M64(&y[j + 0]);
165 vecY1 = OP_CVTEPI16_EPI32_M64(&y[j + 1]);
166 vecY2 = OP_CVTEPI16_EPI32_M64(&y[j + 2]);
167 vecY3 = OP_CVTEPI16_EPI32_M64(&y[j + 3]);
168
169 sum0 = _mm_mullo_epi32(vecX0, vecY0);
170 sum1 = _mm_mullo_epi32(vecX1, vecY1);
171 sum2 = _mm_mullo_epi32(vecX2, vecY2);
172 sum3 = _mm_mullo_epi32(vecX3, vecY3);
173
174 sum0 = _mm_add_epi32(sum0, sum1);
175 sum2 = _mm_add_epi32(sum2, sum3);
176 vecSum = _mm_add_epi32(vecSum, sum0);
177 vecSum = _mm_add_epi32(vecSum, sum2);
178 }
179
180 for (;j<len;j++)
181 {
182 vecX = OP_CVTEPI16_EPI32_M64(&x[j + 0]);
183 vecX0 = _mm_shuffle_epi32(vecX, 0x00);
184
185 vecY0 = OP_CVTEPI16_EPI32_M64(&y[j + 0]);
186
187 sum0 = _mm_mullo_epi32(vecX0, vecY0);
188 vecSum = _mm_add_epi32(vecSum, sum0);
189 }
190
191 initSum = _mm_loadu_si128((__m128i *)(&sum[0]));
192 initSum = _mm_add_epi32(initSum, vecSum);
193 _mm_storeu_si128((__m128i *)sum, initSum);
194 }
195 #endif
196