<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>ClockCycleCounter.h Example File | Qt Multimedia 5.12.2</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtmultimedia-index.html">Qt Multimedia</a></td><td ><a href="qtmultimedia-multimedia-spectrum-example.html">Spectrum Example</a></td><td >ClockCycleCounter.h Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtmultimedia-index.html">Qt 5.12.2 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">ClockCycleCounter.h Example File</h1> <span class="subtitle">multimedia/spectrum/3rdparty/fftreal/stopwatch/ClockCycleCounter.h</span> <!-- $$$multimedia/spectrum/3rdparty/fftreal/stopwatch/ClockCycleCounter.h-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/***************************************************************************** ClockCycleCounter.h Copyright (c) 2003 Laurent de Soras Instrumentation class, for accurate time interval measurement. You may have to modify the implementation to adapt it to your system and/or compiler. --- Legal stuff --- This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *Tab=3***********************************************************************/</span> <span class="preprocessor">#if ! defined (stopwatch_ClockCycleCounter_HEADER_INCLUDED)</span> <span class="preprocessor">#define stopwatch_ClockCycleCounter_HEADER_INCLUDED</span> <span class="preprocessor">#if defined (_MSC_VER)</span> <span class="preprocessor">#pragma once</span> <span class="preprocessor">#pragma warning (4 : 4250) // "Inherits via dominance."</span> <span class="preprocessor">#endif</span> <span class="comment">/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/</span> <span class="preprocessor">#include "def.h"</span> <span class="preprocessor">#include "Int64.h"</span> <span class="keyword">namespace</span> stopwatch { <span class="keyword">class</span> ClockCycleCounter { <span class="comment">/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/</span> <span class="keyword">public</span>: ClockCycleCounter (); stopwatch_FORCEINLINE <span class="type">void</span> start (); stopwatch_FORCEINLINE <span class="type">void</span> stop_lap (); Int64 get_time_total () <span class="keyword">const</span>; Int64 get_time_best_lap () <span class="keyword">const</span>; <span class="comment">/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/</span> <span class="keyword">protected</span>: <span class="comment">/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/</span> <span class="keyword">private</span>: <span class="type">void</span> compute_clk_mul (); <span class="type">void</span> compute_measure_time_total (); <span class="type">void</span> compute_measure_time_lap (); <span class="keyword">static</span> <span class="type">void</span> spend_time (); <span class="keyword">static</span> stopwatch_FORCEINLINE Int64 read_clock_counter (); Int64 _start_time; Int64 _state; Int64 _best_score; <span class="keyword">static</span> Int64 _measure_time_total; <span class="keyword">static</span> Int64 _measure_time_lap; <span class="keyword">static</span> <span class="type">int</span> _clk_mul; <span class="keyword">static</span> bool _init_flag; <span class="comment">/*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/</span> <span class="keyword">private</span>: ClockCycleCounter (<span class="keyword">const</span> ClockCycleCounter <span class="operator">&</span>other); ClockCycleCounter <span class="operator">&</span> <span class="keyword">operator</span> <span class="operator">=</span> (<span class="keyword">const</span> ClockCycleCounter <span class="operator">&</span>other); bool <span class="keyword">operator</span> <span class="operator">=</span><span class="operator">=</span> (<span class="keyword">const</span> ClockCycleCounter <span class="operator">&</span>other); bool <span class="keyword">operator</span> <span class="operator">!</span><span class="operator">=</span> (<span class="keyword">const</span> ClockCycleCounter <span class="operator">&</span>other); }; <span class="comment">// class ClockCycleCounter</span> } <span class="comment">// namespace stopwatch</span> <span class="preprocessor">#include "ClockCycleCounter.hpp"</span> <span class="preprocessor">#endif // stopwatch_ClockCycleCounter_HEADER_INCLUDED</span> <span class="comment">/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/</span> </pre> </div> <!-- @@@multimedia/spectrum/3rdparty/fftreal/stopwatch/ClockCycleCounter.h --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. 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