<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.3"/> <title>GNU Radio 3.6.4.1 C++ API: volk_32f_s32f_power_32f_a.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); $(window).load(resizeHeight); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">GNU Radio 3.6.4.1 C++ API </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.3 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> $(document).ready(function(){initNavTree('volk__32f__s32f__power__32f__a_8h_source.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">volk_32f_s32f_power_32f_a.h</div> </div> </div><!--header--> <div class="contents"> <a href="volk__32f__s32f__power__32f__a_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef INCLUDED_volk_32f_s32f_power_32f_a_H</span></div> <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_volk_32f_s32f_power_32f_a_H</span></div> <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include <<a class="code" href="inttypes_8h.html">inttypes.h</a>></span></div> <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <stdio.h></span></div> <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include <math.h></span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifdef LV_HAVE_SSE4_1</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor"></span><span class="preprocessor">#include <tmmintrin.h></span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#ifdef LV_HAVE_LIB_SIMDMATH</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor"></span><span class="preprocessor">#include <simdmath.h></span></div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#endif </span><span class="comment">/* LV_HAVE_LIB_SIMDMATH */</span><span class="preprocessor"></span></div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="comment"></span></div> <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">/*!</span></div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> \brief Takes each the input vector value to the specified power and stores the results in the return vector</span></div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> \param cVector The vector where the results will be stored</span></div> <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> \param aVector The vector of values to be taken to a power</span></div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> \param power The power value to be applied to each data point</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> \param num_points The number of values in aVector to be taken to the specified power level and stored into cVector</span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">*/</span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> volk_32f_s32f_power_32f_a_sse4_1(<span class="keywordtype">float</span>* cVector, <span class="keyword">const</span> <span class="keywordtype">float</span>* aVector, <span class="keyword">const</span> <span class="keywordtype">float</span> power, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> num_points){</div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> number = 0;</div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordtype">float</span>* cPtr = cVector;</div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">const</span> <span class="keywordtype">float</span>* aPtr = aVector;</div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#ifdef LV_HAVE_LIB_SIMDMATH</span></div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> quarterPoints = num_points / 4;</div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  __m128 vPower = _mm_set_ps1(power);</div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  __m128 zeroValue = _mm_setzero_ps();</div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  __m128 signMask;</div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  __m128 negatedValues;</div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  __m128 negativeOneToPower = _mm_set_ps1(powf(-1, power));</div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  __m128 onesMask = _mm_set_ps1(1);</div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  __m128 aVal, cVal;</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">for</span>(;number < quarterPoints; number++){</div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  aVal = _mm_load_ps(aPtr);</div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  signMask = _mm_cmplt_ps(aVal, zeroValue);</div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  negatedValues = _mm_sub_ps(zeroValue, aVal);</div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  aVal = _mm_blendv_ps(aVal, negatedValues, signMask);</div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// powf4 doesn't support negative values in the base, so we mask them off and then apply the negative after</span></div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  cVal = powf4(aVal, vPower); <span class="comment">// Takes each input value to the specified power</span></div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  cVal = _mm_mul_ps( _mm_blendv_ps(onesMask, negativeOneToPower, signMask), cVal);</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  _mm_store_ps(cPtr,cVal); <span class="comment">// Store the results back into the C container</span></div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  aPtr += 4;</div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  cPtr += 4;</div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  number = quarterPoints * 4;</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#endif </span><span class="comment">/* LV_HAVE_LIB_SIMDMATH */</span><span class="preprocessor"></span></div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">for</span>(;number < num_points; number++){</div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  *cPtr++ = powf((*aPtr++), power);</div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  }</div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#endif </span><span class="comment">/* LV_HAVE_SSE4_1 */</span><span class="preprocessor"></span></div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#ifdef LV_HAVE_SSE</span></div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"></span><span class="preprocessor">#include <xmmintrin.h></span></div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#ifdef LV_HAVE_LIB_SIMDMATH</span></div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"></span><span class="preprocessor">#include <simdmath.h></span></div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#endif </span><span class="comment">/* LV_HAVE_LIB_SIMDMATH */</span><span class="preprocessor"></span></div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"></span><span class="comment"></span></div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">/*!</span></div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> \brief Takes each the input vector value to the specified power and stores the results in the return vector</span></div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> \param cVector The vector where the results will be stored</span></div> <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> \param aVector The vector of values to be taken to a power</span></div> <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> \param power The power value to be applied to each data point</span></div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> \param num_points The number of values in aVector to be taken to the specified power level and stored into cVector</span></div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">*/</span></div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> volk_32f_s32f_power_32f_a_sse(<span class="keywordtype">float</span>* cVector, <span class="keyword">const</span> <span class="keywordtype">float</span>* aVector, <span class="keyword">const</span> <span class="keywordtype">float</span> power, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> num_points){</div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> number = 0;</div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div> <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">float</span>* cPtr = cVector;</div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">const</span> <span class="keywordtype">float</span>* aPtr = aVector;</div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#ifdef LV_HAVE_LIB_SIMDMATH</span></div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> quarterPoints = num_points / 4;</div> <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  __m128 vPower = _mm_set_ps1(power);</div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  __m128 zeroValue = _mm_setzero_ps();</div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  __m128 signMask;</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  __m128 negatedValues;</div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  __m128 negativeOneToPower = _mm_set_ps1(powf(-1, power));</div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  __m128 onesMask = _mm_set_ps1(1);</div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  __m128 aVal, cVal;</div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">for</span>(;number < quarterPoints; number++){</div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  aVal = _mm_load_ps(aPtr);</div> <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  signMask = _mm_cmplt_ps(aVal, zeroValue);</div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  negatedValues = _mm_sub_ps(zeroValue, aVal);</div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  aVal = _mm_or_ps(_mm_andnot_ps(signMask, aVal), _mm_and_ps(signMask, negatedValues) );</div> <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div> <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// powf4 doesn't support negative values in the base, so we mask them off and then apply the negative after</span></div> <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  cVal = powf4(aVal, vPower); <span class="comment">// Takes each input value to the specified power</span></div> <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  cVal = _mm_mul_ps( _mm_or_ps( _mm_andnot_ps(signMask, onesMask), _mm_and_ps(signMask, negativeOneToPower) ), cVal);</div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  _mm_store_ps(cPtr,cVal); <span class="comment">// Store the results back into the C container</span></div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  aPtr += 4;</div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  cPtr += 4;</div> <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div> <div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  number = quarterPoints * 4;</div> <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor">#endif </span><span class="comment">/* LV_HAVE_LIB_SIMDMATH */</span><span class="preprocessor"></span></div> <div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">for</span>(;number < num_points; number++){</div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  *cPtr++ = powf((*aPtr++), power);</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div> <div class="line"><a name="l00119"></a><span class="lineno"> 119</span> }</div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="preprocessor">#endif </span><span class="comment">/* LV_HAVE_SSE */</span><span class="preprocessor"></span></div> <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor">#ifdef LV_HAVE_GENERIC</span></div> <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor"></span><span class="comment"> /*!</span></div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> \brief Takes each the input vector value to the specified power and stores the results in the return vector</span></div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> \param cVector The vector where the results will be stored</span></div> <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> \param aVector The vector of values to be taken to a power</span></div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> \param power The power value to be applied to each data point</span></div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> \param num_points The number of values in aVector to be taken to the specified power level and stored into cVector</span></div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> */</span></div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> volk_32f_s32f_power_32f_a_generic(<span class="keywordtype">float</span>* cVector, <span class="keyword">const</span> <span class="keywordtype">float</span>* aVector, <span class="keyword">const</span> <span class="keywordtype">float</span> power, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> num_points){</div> <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">float</span>* cPtr = cVector;</div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">const</span> <span class="keywordtype">float</span>* aPtr = aVector;</div> <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> number = 0;</div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">for</span>(number = 0; number < num_points; number++){</div> <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  *cPtr++ = powf((*aPtr++), power);</div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div> <div class="line"><a name="l00138"></a><span class="lineno"> 138</span> }</div> <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="preprocessor">#endif </span><span class="comment">/* LV_HAVE_GENERIC */</span><span class="preprocessor"></span></div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div> <div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div> <div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_volk_32f_s32f_power_32f_a_H */</span><span class="preprocessor"></span></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_ae2bed2ec5a7e8cc3c6fe8189aba5582.html">volk</a></li><li class="navelem"><a class="el" href="dir_65faefda812cb3f8ac5b182df74eac77.html">include</a></li><li class="navelem"><a class="el" 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