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<a href="a00038.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="comment">// File: dotproductsse.h</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Description: Architecture-specific dot-product function.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Author: Ray Smith</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// Created: Wed Jul 22 10:57:05 PDT 2015</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// (C) Copyright 2015, Google Inc.</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// You may obtain a copy of the License at</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef TESSERACT_ARCH_DOTPRODUCTSSE_H_</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define TESSERACT_ARCH_DOTPRODUCTSSE_H_</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <cstdint></span> <span class="comment">// for int32_t</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">namespace </span><a class="code" href="a01629.html">tesseract</a> {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// Computes and returns the dot product of the n-vectors u and v.</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// Uses Intel SSE intrinsics to access the SIMD instruction set.</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keywordtype">double</span> <a class="code" href="a01629.html#ad3b5fe062bd97bc8cb1117a29fa24ac2">DotProductSSE</a>(<span class="keyword">const</span> <span class="keywordtype">double</span>* u, <span class="keyword">const</span> <span class="keywordtype">double</span>* v, <span class="keywordtype">int</span> n);</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// Computes and returns the dot product of the n-vectors u and v.</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// Uses Intel SSE intrinsics to access the SIMD instruction set.</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> int32_t <a class="code" href="a01629.html#a1d50d09f28d44f96e1ceb46974554849">IntDotProductSSE</a>(<span class="keyword">const</span> int8_t* u, <span class="keyword">const</span> int8_t* v, <span class="keywordtype">int</span> n);</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> } <span class="comment">// namespace tesseract.</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#endif // TESSERACT_ARCH_DOTPRODUCTSSE_H_</span></div><div class="ttc" id="a01629_html_ad3b5fe062bd97bc8cb1117a29fa24ac2"><div class="ttname"><a href="a01629.html#ad3b5fe062bd97bc8cb1117a29fa24ac2">tesseract::DotProductSSE</a></div><div class="ttdeci">double DotProductSSE(const double *u, const double *v, int n)</div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00027">dotproductsse.cpp:27</a></div></div>
<div class="ttc" id="a01629_html_a1d50d09f28d44f96e1ceb46974554849"><div class="ttname"><a href="a01629.html#a1d50d09f28d44f96e1ceb46974554849">tesseract::IntDotProductSSE</a></div><div class="ttdeci">int32_t IntDotProductSSE(const int8_t *u, const int8_t *v, int n)</div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00031">dotproductsse.cpp:31</a></div></div>
<div class="ttc" id="a01629_html"><div class="ttname"><a href="a01629.html">tesseract</a></div><div class="ttdef"><b>Definition:</b> <a href="a00005_source.html#l00094">baseapi.cpp:94</a></div></div>
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