1 /* Copyright (C) 2007-2008 Jean-Marc Valin
2 * Copyright (C) 2008 Thorvald Natvig
3 */
4 /**
5 @file resample_sse.h
6 @brief Resampler functions (SSE version)
7 */
8 /*
9 Redistribution and use in source and binary forms, with or without
10 modification, are permitted provided that the following conditions
11 are met:
12
13 - Redistributions of source code must retain the above copyright
14 notice, this list of conditions and the following disclaimer.
15
16 - Redistributions in binary form must reproduce the above copyright
17 notice, this list of conditions and the following disclaimer in the
18 documentation and/or other materials provided with the distribution.
19
20 - Neither the name of the Xiph.org Foundation nor the names of its
21 contributors may be used to endorse or promote products derived from
22 this software without specific prior written permission.
23
24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
28 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
30 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
31 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
32 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
34 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 */
36
37 #include <xmmintrin.h>
38
39 #define OVERRIDE_INNER_PRODUCT_SINGLE
inner_product_single(const float * a,const float * b,unsigned int len)40 static inline float inner_product_single(const float *a, const float *b, unsigned int len)
41 {
42 int i;
43 float ret;
44 __m128 sum = _mm_setzero_ps();
45 for (i=0;i<len;i+=8)
46 {
47 sum = _mm_add_ps(sum, _mm_mul_ps(_mm_loadu_ps(a+i), _mm_loadu_ps(b+i)));
48 sum = _mm_add_ps(sum, _mm_mul_ps(_mm_loadu_ps(a+i+4), _mm_loadu_ps(b+i+4)));
49 }
50 sum = _mm_add_ps(sum, _mm_movehl_ps(sum, sum));
51 sum = _mm_add_ss(sum, _mm_shuffle_ps(sum, sum, 0x55));
52 _mm_store_ss(&ret, sum);
53 return ret;
54 }
55
56 #define OVERRIDE_INTERPOLATE_PRODUCT_SINGLE
interpolate_product_single(const float * a,const float * b,unsigned int len,const spx_uint32_t oversample,float * frac)57 static inline float interpolate_product_single(const float *a, const float *b, unsigned int len, const spx_uint32_t oversample, float *frac) {
58 int i;
59 float ret;
60 __m128 sum = _mm_setzero_ps();
61 __m128 f = _mm_loadu_ps(frac);
62 for(i=0;i<len;i+=2)
63 {
64 sum = _mm_add_ps(sum, _mm_mul_ps(_mm_load1_ps(a+i), _mm_loadu_ps(b+i*oversample)));
65 sum = _mm_add_ps(sum, _mm_mul_ps(_mm_load1_ps(a+i+1), _mm_loadu_ps(b+(i+1)*oversample)));
66 }
67 sum = _mm_mul_ps(f, sum);
68 sum = _mm_add_ps(sum, _mm_movehl_ps(sum, sum));
69 sum = _mm_add_ss(sum, _mm_shuffle_ps(sum, sum, 0x55));
70 _mm_store_ss(&ret, sum);
71 return ret;
72 }
73
74 #ifdef _USE_SSE2
75 #include <emmintrin.h>
76 #define OVERRIDE_INNER_PRODUCT_DOUBLE
77
inner_product_double(const float * a,const float * b,unsigned int len)78 static inline double inner_product_double(const float *a, const float *b, unsigned int len)
79 {
80 int i;
81 double ret;
82 __m128d sum = _mm_setzero_pd();
83 __m128 t;
84 for (i=0;i<len;i+=8)
85 {
86 t = _mm_mul_ps(_mm_loadu_ps(a+i), _mm_loadu_ps(b+i));
87 sum = _mm_add_pd(sum, _mm_cvtps_pd(t));
88 sum = _mm_add_pd(sum, _mm_cvtps_pd(_mm_movehl_ps(t, t)));
89
90 t = _mm_mul_ps(_mm_loadu_ps(a+i+4), _mm_loadu_ps(b+i+4));
91 sum = _mm_add_pd(sum, _mm_cvtps_pd(t));
92 sum = _mm_add_pd(sum, _mm_cvtps_pd(_mm_movehl_ps(t, t)));
93 }
94 sum = _mm_add_sd(sum, (__m128d) _mm_movehl_ps((__m128) sum, (__m128) sum));
95 _mm_store_sd(&ret, sum);
96 return ret;
97 }
98
99 #define OVERRIDE_INTERPOLATE_PRODUCT_DOUBLE
interpolate_product_double(const float * a,const float * b,unsigned int len,const spx_uint32_t oversample,float * frac)100 static inline double interpolate_product_double(const float *a, const float *b, unsigned int len, const spx_uint32_t oversample, float *frac) {
101 int i;
102 double ret;
103 __m128d sum;
104 __m128d sum1 = _mm_setzero_pd();
105 __m128d sum2 = _mm_setzero_pd();
106 __m128 f = _mm_loadu_ps(frac);
107 __m128d f1 = _mm_cvtps_pd(f);
108 __m128d f2 = _mm_cvtps_pd(_mm_movehl_ps(f,f));
109 __m128 t;
110 for(i=0;i<len;i+=2)
111 {
112 t = _mm_mul_ps(_mm_load1_ps(a+i), _mm_loadu_ps(b+i*oversample));
113 sum1 = _mm_add_pd(sum1, _mm_cvtps_pd(t));
114 sum2 = _mm_add_pd(sum2, _mm_cvtps_pd(_mm_movehl_ps(t, t)));
115
116 t = _mm_mul_ps(_mm_load1_ps(a+i+1), _mm_loadu_ps(b+(i+1)*oversample));
117 sum1 = _mm_add_pd(sum1, _mm_cvtps_pd(t));
118 sum2 = _mm_add_pd(sum2, _mm_cvtps_pd(_mm_movehl_ps(t, t)));
119 }
120 sum1 = _mm_mul_pd(f1, sum1);
121 sum2 = _mm_mul_pd(f2, sum2);
122 sum = _mm_add_pd(sum1, sum2);
123 sum = _mm_add_sd(sum, (__m128d) _mm_movehl_ps((__m128) sum, (__m128) sum));
124 _mm_store_sd(&ret, sum);
125 return ret;
126 }
127
128 #endif
129