Naming convention for AVX
[opus.git] / celt / x86 / pitch_sse.c
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 "macros.h"
33 #include "celt_lpc.h"
34 #include "stack_alloc.h"
35 #include "mathops.h"
36 #include "pitch.h"
37
38 #if defined(OPUS_X86_MAY_HAVE_SSE) && !defined(FIXED_POINT)
39
40 #include <xmmintrin.h>
41 #include "arch.h"
42
43 void xcorr_kernel_sse(const opus_val16 *x, const opus_val16 *y, opus_val32 sum[4], int len)
44 {
45    int j;
46    __m128 xsum1, xsum2;
47    xsum1 = _mm_loadu_ps(sum);
48    xsum2 = _mm_setzero_ps();
49
50    for (j = 0; j < len-3; j += 4)
51    {
52       __m128 x0 = _mm_loadu_ps(x+j);
53       __m128 yj = _mm_loadu_ps(y+j);
54       __m128 y3 = _mm_loadu_ps(y+j+3);
55
56       xsum1 = _mm_add_ps(xsum1,_mm_mul_ps(_mm_shuffle_ps(x0,x0,0x00),yj));
57       xsum2 = _mm_add_ps(xsum2,_mm_mul_ps(_mm_shuffle_ps(x0,x0,0x55),
58                                           _mm_shuffle_ps(yj,y3,0x49)));
59       xsum1 = _mm_add_ps(xsum1,_mm_mul_ps(_mm_shuffle_ps(x0,x0,0xaa),
60                                           _mm_shuffle_ps(yj,y3,0x9e)));
61       xsum2 = _mm_add_ps(xsum2,_mm_mul_ps(_mm_shuffle_ps(x0,x0,0xff),y3));
62    }
63    if (j < len)
64    {
65       xsum1 = _mm_add_ps(xsum1,_mm_mul_ps(_mm_load1_ps(x+j),_mm_loadu_ps(y+j)));
66       if (++j < len)
67       {
68          xsum2 = _mm_add_ps(xsum2,_mm_mul_ps(_mm_load1_ps(x+j),_mm_loadu_ps(y+j)));
69          if (++j < len)
70          {
71             xsum1 = _mm_add_ps(xsum1,_mm_mul_ps(_mm_load1_ps(x+j),_mm_loadu_ps(y+j)));
72          }
73       }
74    }
75    _mm_storeu_ps(sum,_mm_add_ps(xsum1,xsum2));
76 }
77
78
79 void dual_inner_prod_sse(const opus_val16 *x, const opus_val16 *y01, const opus_val16 *y02,
80       int N, opus_val32 *xy1, opus_val32 *xy2)
81 {
82    int i;
83    __m128 xsum1, xsum2;
84    xsum1 = _mm_setzero_ps();
85    xsum2 = _mm_setzero_ps();
86    for (i=0;i<N-3;i+=4)
87    {
88       __m128 xi = _mm_loadu_ps(x+i);
89       __m128 y1i = _mm_loadu_ps(y01+i);
90       __m128 y2i = _mm_loadu_ps(y02+i);
91       xsum1 = _mm_add_ps(xsum1,_mm_mul_ps(xi, y1i));
92       xsum2 = _mm_add_ps(xsum2,_mm_mul_ps(xi, y2i));
93    }
94    /* Horizontal sum */
95    xsum1 = _mm_add_ps(xsum1, _mm_movehl_ps(xsum1, xsum1));
96    xsum1 = _mm_add_ss(xsum1, _mm_shuffle_ps(xsum1, xsum1, 0x55));
97    _mm_store_ss(xy1, xsum1);
98    xsum2 = _mm_add_ps(xsum2, _mm_movehl_ps(xsum2, xsum2));
99    xsum2 = _mm_add_ss(xsum2, _mm_shuffle_ps(xsum2, xsum2, 0x55));
100    _mm_store_ss(xy2, xsum2);
101    for (;i<N;i++)
102    {
103       *xy1 = MAC16_16(*xy1, x[i], y01[i]);
104       *xy2 = MAC16_16(*xy2, x[i], y02[i]);
105    }
106 }
107
108 opus_val32 celt_inner_prod_sse(const opus_val16 *x, const opus_val16 *y,
109       int N)
110 {
111    int i;
112    float xy;
113    __m128 sum;
114    sum = _mm_setzero_ps();
115    /* FIXME: We should probably go 8-way and use 2 sums. */
116    for (i=0;i<N-3;i+=4)
117    {
118       __m128 xi = _mm_loadu_ps(x+i);
119       __m128 yi = _mm_loadu_ps(y+i);
120       sum = _mm_add_ps(sum,_mm_mul_ps(xi, yi));
121    }
122    /* Horizontal sum */
123    sum = _mm_add_ps(sum, _mm_movehl_ps(sum, sum));
124    sum = _mm_add_ss(sum, _mm_shuffle_ps(sum, sum, 0x55));
125    _mm_store_ss(&xy, sum);
126    for (;i<N;i++)
127    {
128       xy = MAC16_16(xy, x[i], y[i]);
129    }
130    return xy;
131 }
132
133 void comb_filter_const_sse(opus_val32 *y, opus_val32 *x, int T, int N,
134       opus_val16 g10, opus_val16 g11, opus_val16 g12)
135 {
136    int i;
137    __m128 x0v;
138    __m128 g10v, g11v, g12v;
139    g10v = _mm_load1_ps(&g10);
140    g11v = _mm_load1_ps(&g11);
141    g12v = _mm_load1_ps(&g12);
142    x0v = _mm_loadu_ps(&x[-T-2]);
143    for (i=0;i<N-3;i+=4)
144    {
145       __m128 yi, yi2, x1v, x2v, x3v, x4v;
146       const opus_val32 *xp = &x[i-T-2];
147       yi = _mm_loadu_ps(x+i);
148       x4v = _mm_loadu_ps(xp+4);
149 #if 0
150       /* Slower version with all loads */
151       x1v = _mm_loadu_ps(xp+1);
152       x2v = _mm_loadu_ps(xp+2);
153       x3v = _mm_loadu_ps(xp+3);
154 #else
155       x2v = _mm_shuffle_ps(x0v, x4v, 0x4e);
156       x1v = _mm_shuffle_ps(x0v, x2v, 0x99);
157       x3v = _mm_shuffle_ps(x2v, x4v, 0x99);
158 #endif
159
160       yi = _mm_add_ps(yi, _mm_mul_ps(g10v,x2v));
161 #if 0 /* Set to 1 to make it bit-exact with the non-SSE version */
162       yi = _mm_add_ps(yi, _mm_mul_ps(g11v,_mm_add_ps(x3v,x1v)));
163       yi = _mm_add_ps(yi, _mm_mul_ps(g12v,_mm_add_ps(x4v,x0v)));
164 #else
165       /* Use partial sums */
166       yi2 = _mm_add_ps(_mm_mul_ps(g11v,_mm_add_ps(x3v,x1v)),
167                        _mm_mul_ps(g12v,_mm_add_ps(x4v,x0v)));
168       yi = _mm_add_ps(yi, yi2);
169 #endif
170       x0v=x4v;
171       _mm_storeu_ps(y+i, yi);
172    }
173 #ifdef CUSTOM_MODES
174    for (;i<N;i++)
175    {
176       y[i] = x[i]
177                + MULT16_32_Q15(g10,x[i-T])
178                + MULT16_32_Q15(g11,ADD32(x[i-T+1],x[i-T-1]))
179                + MULT16_32_Q15(g12,ADD32(x[i-T+2],x[i-T-2]));
180    }
181 #endif
182 }
183
184
185 #endif