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 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 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 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 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
