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<a href="_nv_blast_time_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="comment">// This code contains NVIDIA Confidential Information and is disclosed to you</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// under a form of NVIDIA software license agreement provided separately to you.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Notice</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// NVIDIA Corporation and its licensors retain all intellectual property and</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// proprietary rights in and to this software and related documentation and</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// any modifications thereto. Any use, reproduction, disclosure, or</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// distribution of this software and related documentation without an express</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// license agreement from NVIDIA Corporation is strictly prohibited.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">//</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.</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">// Information and code furnished is believed to be accurate and reliable.</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// information or for any infringement of patents or other rights of third parties that may</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// result from its use. No license is granted by implication or otherwise under any patent</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// or patent rights of NVIDIA Corporation. Details are subject to change without notice.</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// This code supersedes and replaces all information previously supplied.</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// NVIDIA Corporation products are not authorized for use as critical</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// components in life support devices or systems without express written approval of</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// NVIDIA Corporation.</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">//</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// Copyright (c) 2016-2020 NVIDIA Corporation. All rights reserved.</span></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> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifndef NVBLASTTIME_H</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define NVBLASTTIME_H</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "<a class="code" href="_nv_blast_types_8h.html">NvBlastTypes.h</a>"</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</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="keyword">namespace </span><a class="code" href="namespace_nv.html">Nv</a></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> <span class="keyword">namespace </span>Blast</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="class_nv_1_1_blast_1_1_time.html"> 40</a></span> <span class="keyword">class </span><a class="code" href="class_nv_1_1_blast_1_1_time.html">Time</a></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="class_nv_1_1_blast_1_1_time.html#a101e7808be5a2daad0f2b0f9298dca2a"> 43</a></span>  <a class="code" href="class_nv_1_1_blast_1_1_time.html#a101e7808be5a2daad0f2b0f9298dca2a">Time</a>() : m_lastTickCount(getTimeTicks()) {}</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="class_nv_1_1_blast_1_1_time.html#a4f077e2652ca099569600e76a12501b6"> 45</a></span>  int64_t <a class="code" href="class_nv_1_1_blast_1_1_time.html#a4f077e2652ca099569600e76a12501b6">getElapsedTicks</a>()</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">const</span> int64_t lastTickCount = m_lastTickCount;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  m_lastTickCount = getTimeTicks();</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> m_lastTickCount - lastTickCount;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</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"><a class="line" href="class_nv_1_1_blast_1_1_time.html#a64fc1a3fec52eb332e2879cdba37694d"> 52</a></span>  int64_t <a class="code" href="class_nv_1_1_blast_1_1_time.html#a64fc1a3fec52eb332e2879cdba37694d">peekElapsedTicks</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> getTimeTicks() - m_lastTickCount;</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> </div><div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="class_nv_1_1_blast_1_1_time.html#a440cea5bd7d09b6313189bb11ccfe526"> 57</a></span>  int64_t <a class="code" href="class_nv_1_1_blast_1_1_time.html#a440cea5bd7d09b6313189bb11ccfe526">getLastTickCount</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> m_lastTickCount;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="class_nv_1_1_blast_1_1_time.html#aeced1fdeb83d4ce1ef759648577769d0"> 62</a></span>  <span class="keyword">static</span> <span class="keywordtype">double</span> <a class="code" href="class_nv_1_1_blast_1_1_time.html#aeced1fdeb83d4ce1ef759648577769d0">seconds</a>(int64_t ticks)</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> s_secondsPerTick * ticks;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  int64_t getTimeTicks() <span class="keyword">const</span>;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> getTickDuration();</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  int64_t m_lastTickCount;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">double</span> s_secondsPerTick;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> };</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> } <span class="comment">// namespace Blast</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> } <span class="comment">// namespace Nv</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#if NV_MICROSOFT_FAMILY</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#include "<a class="code" href="_nv_blast_include_windows_8h.html">NvBlastIncludeWindows.h</a>"</span></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> <a class="code" href="group__foundation.html#ga36a01a4a51968418a26b06da7e1ad5d0">NV_INLINE</a> int64_t Nv::Blast::Time::getTimeTicks()<span class="keyword"> const</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword"></span>{</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  LARGE_INTEGER a;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  QueryPerformanceCounter(&a);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> a.QuadPart;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <a class="code" href="group__foundation.html#ga36a01a4a51968418a26b06da7e1ad5d0">NV_INLINE</a> <span class="keywordtype">double</span> Nv::Blast::Time::getTickDuration()</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>  LARGE_INTEGER a;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  QueryPerformanceFrequency(&a);</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> 1.0 / (double)a.QuadPart;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#elif NV_UNIX_FAMILY</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor">#include <time.h></span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <a class="code" href="group__foundation.html#ga36a01a4a51968418a26b06da7e1ad5d0">NV_INLINE</a> int64_t Nv::Blast::Time::getTimeTicks()<span class="keyword"> const</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keyword"></span>{</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">struct </span>timespec mCurrTimeInt;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  clock_gettime(CLOCK_REALTIME, &mCurrTimeInt);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span> (static_cast<int64_t>(mCurrTimeInt.tv_sec) * 1000000000) + (<span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(mCurrTimeInt.tv_nsec));</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> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <a class="code" href="group__foundation.html#ga36a01a4a51968418a26b06da7e1ad5d0">NV_INLINE</a> <span class="keywordtype">double</span> Nv::Blast::Time::getTickDuration()</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>  <span class="keywordflow">return</span> 1.e-9;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#elif NV_PS4</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor">#include "ps4/NvBlastTimePS4.h"</span></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> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="preprocessor">#endif // #ifndef NVBLASTTIME_H</span></div><div class="ttc" id="class_nv_1_1_blast_1_1_time_html_a440cea5bd7d09b6313189bb11ccfe526"><div class="ttname"><a href="class_nv_1_1_blast_1_1_time.html#a440cea5bd7d09b6313189bb11ccfe526">Nv::Blast::Time::getLastTickCount</a></div><div class="ttdeci">int64_t getLastTickCount() const</div><div class="ttdef"><b>Definition:</b> NvBlastTime.h:57</div></div>
<div class="ttc" id="_nv_blast_include_windows_8h_html"><div class="ttname"><a href="_nv_blast_include_windows_8h.html">NvBlastIncludeWindows.h</a></div></div>
<div class="ttc" id="_nv_blast_types_8h_html"><div class="ttname"><a href="_nv_blast_types_8h.html">NvBlastTypes.h</a></div></div>
<div class="ttc" id="class_nv_1_1_blast_1_1_time_html_aeced1fdeb83d4ce1ef759648577769d0"><div class="ttname"><a href="class_nv_1_1_blast_1_1_time.html#aeced1fdeb83d4ce1ef759648577769d0">Nv::Blast::Time::seconds</a></div><div class="ttdeci">static double seconds(int64_t ticks)</div><div class="ttdef"><b>Definition:</b> NvBlastTime.h:62</div></div>
<div class="ttc" id="class_nv_1_1_blast_1_1_time_html_a64fc1a3fec52eb332e2879cdba37694d"><div class="ttname"><a href="class_nv_1_1_blast_1_1_time.html#a64fc1a3fec52eb332e2879cdba37694d">Nv::Blast::Time::peekElapsedTicks</a></div><div class="ttdeci">int64_t peekElapsedTicks() const</div><div class="ttdef"><b>Definition:</b> NvBlastTime.h:52</div></div>
<div class="ttc" id="class_nv_1_1_blast_1_1_time_html_a101e7808be5a2daad0f2b0f9298dca2a"><div class="ttname"><a href="class_nv_1_1_blast_1_1_time.html#a101e7808be5a2daad0f2b0f9298dca2a">Nv::Blast::Time::Time</a></div><div class="ttdeci">Time()</div><div class="ttdef"><b>Definition:</b> NvBlastTime.h:43</div></div>
<div class="ttc" id="group__foundation_html_ga36a01a4a51968418a26b06da7e1ad5d0"><div class="ttname"><a href="group__foundation.html#ga36a01a4a51968418a26b06da7e1ad5d0">NV_INLINE</a></div><div class="ttdeci">#define NV_INLINE</div><div class="ttdef"><b>Definition:</b> NvPreprocessor.h:350</div></div>
<div class="ttc" id="class_nv_1_1_blast_1_1_time_html"><div class="ttname"><a href="class_nv_1_1_blast_1_1_time.html">Nv::Blast::Time</a></div><div class="ttdef"><b>Definition:</b> NvBlastTime.h:40</div></div>
<div class="ttc" id="class_nv_1_1_blast_1_1_time_html_a4f077e2652ca099569600e76a12501b6"><div class="ttname"><a href="class_nv_1_1_blast_1_1_time.html#a4f077e2652ca099569600e76a12501b6">Nv::Blast::Time::getElapsedTicks</a></div><div class="ttdeci">int64_t getElapsedTicks()</div><div class="ttdef"><b>Definition:</b> NvBlastTime.h:45</div></div>
<div class="ttc" id="namespace_nv_html"><div class="ttname"><a href="namespace_nv.html">Nv</a></div><div class="ttdef"><b>Definition:</b> NvBlastArray.h:37</div></div>
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