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<title>NVIDIA(R) Blast(R) SDK 1.1 Source Reference: sdk/extensions/authoring/source/VHACD/inc/vhacdTimer.h Source File</title>
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<h1>sdk/extensions/authoring/source/VHACD/inc/vhacdTimer.h</h1><a href="vhacd_timer_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)</span>
<a name="l00002"></a>00002 <span class="comment"> All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment"> </span>
<a name="l00004"></a>00004 <span class="comment"> </span>
<a name="l00005"></a>00005 <span class="comment"> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:</span>
<a name="l00006"></a>00006 <span class="comment"> </span>
<a name="l00007"></a>00007 <span class="comment"> 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.</span>
<a name="l00008"></a>00008 <span class="comment"> </span>
<a name="l00009"></a>00009 <span class="comment"> 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.</span>
<a name="l00010"></a>00010 <span class="comment"> </span>
<a name="l00011"></a>00011 <span class="comment"> 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.</span>
<a name="l00012"></a>00012 <span class="comment"> </span>
<a name="l00013"></a>00013 <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00014"></a>00014 <span class="comment"> */</span>
<a name="l00015"></a>00015 <span class="preprocessor">#pragma once</span>
<a name="l00016"></a>00016 <span class="preprocessor"></span><span class="preprocessor">#ifndef VHACD_TIMER_H</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span><span class="preprocessor">#define VHACD_TIMER_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span>
<a name="l00019"></a>00019 <span class="preprocessor">#ifdef _WIN32</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span><span class="preprocessor">#ifndef WIN32_LEAN_AND_MEAN</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#include <windows.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#elif __MACH__</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#include <mach/clock.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <mach/mach.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#else</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#include <sys/time.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <time.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#endif</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032 <span class="keyword">namespace </span>VHACD {
<a name="l00033"></a>00033 <span class="preprocessor">#ifdef _WIN32</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="keyword">class </span>Timer {
<a name="l00035"></a>00035 <span class="keyword">public</span>:
<a name="l00036"></a>00036 <a class="code" href="class_v_h_a_c_d_1_1_timer.html#e8e2de120580e19a708a34031f389b14">Timer</a>(<span class="keywordtype">void</span>)
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038 m_start.QuadPart = 0;
<a name="l00039"></a>00039 m_stop.QuadPart = 0;
<a name="l00040"></a>00040 QueryPerformanceFrequency(&m_freq);
<a name="l00041"></a>00041 };
<a name="l00042"></a>00042 <a class="code" href="class_v_h_a_c_d_1_1_timer.html#041a7089eae7431ae9dd015bf4cb6526">~Timer</a>(<span class="keywordtype">void</span>){};
<a name="l00043"></a>00043 <span class="keywordtype">void</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#d4f512c6f4c7ba0f2fb5785fd1850450">Tic</a>()
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 QueryPerformanceCounter(&m_start);
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047 <span class="keywordtype">void</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#f3b39586f0b0f87f7e7cbae37d001798">Toc</a>()
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 QueryPerformanceCounter(&m_stop);
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051 <span class="keywordtype">double</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#5bdbd75fddd75566c1a176a59a067360">GetElapsedTime</a>() <span class="comment">// in ms</span>
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 LARGE_INTEGER delta;
<a name="l00054"></a>00054 delta.QuadPart = m_stop.QuadPart - m_start.QuadPart;
<a name="l00055"></a>00055 <span class="keywordflow">return</span> (1000.0 * delta.QuadPart) / (double)m_freq.QuadPart;
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="keyword">private</span>:
<a name="l00059"></a>00059 LARGE_INTEGER m_start;
<a name="l00060"></a>00060 LARGE_INTEGER m_stop;
<a name="l00061"></a>00061 LARGE_INTEGER m_freq;
<a name="l00062"></a>00062 };
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="preprocessor">#elif __MACH__</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="keyword">class </span>Timer {
<a name="l00066"></a>00066 <span class="keyword">public</span>:
<a name="l00067"></a>00067 <a class="code" href="class_v_h_a_c_d_1_1_timer.html#e8e2de120580e19a708a34031f389b14">Timer</a>(<span class="keywordtype">void</span>)
<a name="l00068"></a>00068 {
<a name="l00069"></a>00069 memset(<span class="keyword">this</span>, 0, <span class="keyword">sizeof</span>(<a class="code" href="class_v_h_a_c_d_1_1_timer.html#e8e2de120580e19a708a34031f389b14">Timer</a>));
<a name="l00070"></a>00070 host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &m_cclock);
<a name="l00071"></a>00071 };
<a name="l00072"></a>00072 <a class="code" href="class_v_h_a_c_d_1_1_timer.html#041a7089eae7431ae9dd015bf4cb6526">~Timer</a>(<span class="keywordtype">void</span>)
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 mach_port_deallocate(mach_task_self(), m_cclock);
<a name="l00075"></a>00075 };
<a name="l00076"></a>00076 <span class="keywordtype">void</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#d4f512c6f4c7ba0f2fb5785fd1850450">Tic</a>()
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 clock_get_time(m_cclock, &m_start);
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080 <span class="keywordtype">void</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#f3b39586f0b0f87f7e7cbae37d001798">Toc</a>()
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082 clock_get_time(m_cclock, &m_stop);
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084 <span class="keywordtype">double</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#5bdbd75fddd75566c1a176a59a067360">GetElapsedTime</a>() <span class="comment">// in ms</span>
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <span class="keywordflow">return</span> 1000.0 * (m_stop.tv_sec - m_start.tv_sec + (1.0E-9) * (m_stop.tv_nsec - m_start.tv_nsec));
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keyword">private</span>:
<a name="l00090"></a>00090 clock_serv_t m_cclock;
<a name="l00091"></a>00091 mach_timespec_t m_start;
<a name="l00092"></a>00092 mach_timespec_t m_stop;
<a name="l00093"></a>00093 };
<a name="l00094"></a>00094 <span class="preprocessor">#else</span>
<a name="l00095"></a><a class="code" href="class_v_h_a_c_d_1_1_timer.html">00095</a> <span class="preprocessor"></span><span class="keyword">class </span><a class="code" href="class_v_h_a_c_d_1_1_timer.html">Timer</a> {
<a name="l00096"></a>00096 <span class="keyword">public</span>:
<a name="l00097"></a><a class="code" href="class_v_h_a_c_d_1_1_timer.html#e8e2de120580e19a708a34031f389b14">00097</a> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#e8e2de120580e19a708a34031f389b14">Timer</a>(<span class="keywordtype">void</span>)
<a name="l00098"></a>00098 {
<a name="l00099"></a>00099 memset(<span class="keyword">this</span>, 0, <span class="keyword">sizeof</span>(<a class="code" href="class_v_h_a_c_d_1_1_timer.html">Timer</a>));
<a name="l00100"></a>00100 };
<a name="l00101"></a><a class="code" href="class_v_h_a_c_d_1_1_timer.html#041a7089eae7431ae9dd015bf4cb6526">00101</a> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#041a7089eae7431ae9dd015bf4cb6526">~Timer</a>(<span class="keywordtype">void</span>){};
<a name="l00102"></a><a class="code" href="class_v_h_a_c_d_1_1_timer.html#d4f512c6f4c7ba0f2fb5785fd1850450">00102</a> <span class="keywordtype">void</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#d4f512c6f4c7ba0f2fb5785fd1850450">Tic</a>()
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 clock_gettime(CLOCK_REALTIME, &m_start);
<a name="l00105"></a>00105 }
<a name="l00106"></a><a class="code" href="class_v_h_a_c_d_1_1_timer.html#f3b39586f0b0f87f7e7cbae37d001798">00106</a> <span class="keywordtype">void</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#f3b39586f0b0f87f7e7cbae37d001798">Toc</a>()
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 clock_gettime(CLOCK_REALTIME, &m_stop);
<a name="l00109"></a>00109 }
<a name="l00110"></a><a class="code" href="class_v_h_a_c_d_1_1_timer.html#5bdbd75fddd75566c1a176a59a067360">00110</a> <span class="keywordtype">double</span> <a class="code" href="class_v_h_a_c_d_1_1_timer.html#5bdbd75fddd75566c1a176a59a067360">GetElapsedTime</a>() <span class="comment">// in ms</span>
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <span class="keywordflow">return</span> 1000.0 * (m_stop.tv_sec - m_start.tv_sec + (1.0E-9) * (m_stop.tv_nsec - m_start.tv_nsec));
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="keyword">private</span>:
<a name="l00116"></a>00116 <span class="keyword">struct </span>timespec m_start;
<a name="l00117"></a>00117 <span class="keyword">struct </span>timespec m_stop;
<a name="l00118"></a>00118 };
<a name="l00119"></a>00119 <span class="preprocessor">#endif</span>
<a name="l00120"></a>00120 <span class="preprocessor"></span>}
<a name="l00121"></a>00121 <span class="preprocessor">#endif // VHACD_TIMER_H</span>
</pre></div></div>
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