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<h1>sdk/common/NvBlastFixedQueue.h</h1><a href="_nv_blast_fixed_queue_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// This code contains NVIDIA Confidential Information and is disclosed to you</span>
<a name="l00002"></a>00002 <span class="comment">// under a form of NVIDIA software license agreement provided separately to you.</span>
<a name="l00003"></a>00003 <span class="comment">//</span>
<a name="l00004"></a>00004 <span class="comment">// Notice</span>
<a name="l00005"></a>00005 <span class="comment">// NVIDIA Corporation and its licensors retain all intellectual property and</span>
<a name="l00006"></a>00006 <span class="comment">// proprietary rights in and to this software and related documentation and</span>
<a name="l00007"></a>00007 <span class="comment">// any modifications thereto. Any use, reproduction, disclosure, or</span>
<a name="l00008"></a>00008 <span class="comment">// distribution of this software and related documentation without an express</span>
<a name="l00009"></a>00009 <span class="comment">// license agreement from NVIDIA Corporation is strictly prohibited.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES</span>
<a name="l00012"></a>00012 <span class="comment">// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO</span>
<a name="l00013"></a>00013 <span class="comment">// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,</span>
<a name="l00014"></a>00014 <span class="comment">// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016 <span class="comment">// Information and code furnished is believed to be accurate and reliable.</span>
<a name="l00017"></a>00017 <span class="comment">// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such</span>
<a name="l00018"></a>00018 <span class="comment">// information or for any infringement of patents or other rights of third parties that may</span>
<a name="l00019"></a>00019 <span class="comment">// result from its use. No license is granted by implication or otherwise under any patent</span>
<a name="l00020"></a>00020 <span class="comment">// or patent rights of NVIDIA Corporation. Details are subject to change without notice.</span>
<a name="l00021"></a>00021 <span class="comment">// This code supersedes and replaces all information previously supplied.</span>
<a name="l00022"></a>00022 <span class="comment">// NVIDIA Corporation products are not authorized for use as critical</span>
<a name="l00023"></a>00023 <span class="comment">// components in life support devices or systems without express written approval of</span>
<a name="l00024"></a>00024 <span class="comment">// NVIDIA Corporation.</span>
<a name="l00025"></a>00025 <span class="comment">//</span>
<a name="l00026"></a>00026 <span class="comment">// Copyright (c) 2016-2020 NVIDIA Corporation. All rights reserved.</span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#ifndef NVBLASTFIXEDQUEUE_H</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define NVBLASTFIXEDQUEUE_H</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="_nv_blast_assert_8h.html">NvBlastAssert.h</a>"</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include "<a class="code" href="_nv_blast_memory_8h.html">NvBlastMemory.h</a>"</span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="keyword">namespace </span>Nv
<a name="l00036"></a>00036 {
<a name="l00037"></a>00037 <span class="keyword">namespace </span>Blast
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039
<a name="l00054"></a>00054 <span class="keyword">template</span> <<span class="keyword">class</span> T>
<a name="l00055"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html">00055</a> <span class="keyword">class </span><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html">FixedQueue</a>
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057 <span class="keyword">public</span>:
<a name="l00058"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#12feba21bdf02ee2bea2e9e0e5910bf6">00058</a> <span class="keyword">explicit</span> <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#12feba21bdf02ee2bea2e9e0e5910bf6">FixedQueue</a>(uint32_t maxEntries) : m_num(0), m_head(0), m_tail(0), m_maxEntries(maxEntries)
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00062"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#81eae2188bc447256c7a4df3180e1001">00062</a> <span class="keyword">static</span> <span class="keywordtype">size_t</span> <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#81eae2188bc447256c7a4df3180e1001">requiredMemorySize</a>(uint32_t capacity)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 <span class="keywordflow">return</span> <a class="code" href="namespace_nv_1_1_blast.html#c0c6da9c519d92d57c310200989092dc">align16</a>(<span class="keyword">sizeof</span>(<a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html">FixedQueue<T></a>)) + <a class="code" href="namespace_nv_1_1_blast.html#c0c6da9c519d92d57c310200989092dc">align16</a>(capacity * <span class="keyword">sizeof</span>(T));
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#35267203a20585ed9a5b08b7dcb91556">00067</a> T <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#35267203a20585ed9a5b08b7dcb91556">popFront</a>()
<a name="l00068"></a>00068 {
<a name="l00069"></a>00069 <a class="code" href="_nv_blast_assert_8h.html#2b179fca67cdb57b12b65e33fe3f6c93">NVBLAST_ASSERT</a>(m_num>0);
<a name="l00070"></a>00070
<a name="l00071"></a>00071 m_num--;
<a name="l00072"></a>00072 T& element = data()[m_tail];
<a name="l00073"></a>00073 m_tail = (m_tail+1) % (m_maxEntries);
<a name="l00074"></a>00074 <span class="keywordflow">return</span> element;
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076
<a name="l00077"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#54bd68e5fe00a2b6f5135e96940a3d7c">00077</a> T <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#54bd68e5fe00a2b6f5135e96940a3d7c">front</a>()
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <a class="code" href="_nv_blast_assert_8h.html#2b179fca67cdb57b12b65e33fe3f6c93">NVBLAST_ASSERT</a>(m_num>0);
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordflow">return</span> data()[m_tail];
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#b37c7f73de151865ee0cef47ac92935c">00084</a> T <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#b37c7f73de151865ee0cef47ac92935c">popBack</a>()
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <a class="code" href="_nv_blast_assert_8h.html#2b179fca67cdb57b12b65e33fe3f6c93">NVBLAST_ASSERT</a>(m_num>0);
<a name="l00087"></a>00087
<a name="l00088"></a>00088 m_num--;
<a name="l00089"></a>00089 m_head = (m_head-1) % (m_maxEntries);
<a name="l00090"></a>00090 <span class="keywordflow">return</span> data()[m_head];
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092
<a name="l00093"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#a8645abdbfec5f146a87d20eb7061000">00093</a> T <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#a8645abdbfec5f146a87d20eb7061000">back</a>()
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095 <a class="code" href="_nv_blast_assert_8h.html#2b179fca67cdb57b12b65e33fe3f6c93">NVBLAST_ASSERT</a>(m_num>0);
<a name="l00096"></a>00096
<a name="l00097"></a>00097 uint32_t headAccess = (m_head-1) % (m_maxEntries);
<a name="l00098"></a>00098 <span class="keywordflow">return</span> data()[headAccess];
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#7b0cb35624994968155185acd732e643">00101</a> <span class="keywordtype">bool</span> <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#7b0cb35624994968155185acd732e643">pushBack</a>(<span class="keyword">const</span> T& element)
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 <span class="keywordflow">if</span> (m_num == m_maxEntries) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00104"></a>00104 data()[m_head] = element;
<a name="l00105"></a>00105
<a name="l00106"></a>00106 m_num++;
<a name="l00107"></a>00107 m_head = (m_head+1) % (m_maxEntries);
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00110"></a>00110 }
<a name="l00111"></a>00111
<a name="l00112"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#cd36deda8b51360698729e0db0b3e6d4">00112</a> <span class="keywordtype">bool</span> <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#cd36deda8b51360698729e0db0b3e6d4">empty</a>()<span class="keyword"> const</span>
<a name="l00113"></a>00113 <span class="keyword"> </span>{
<a name="l00114"></a>00114 <span class="keywordflow">return</span> m_num == 0;
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a><a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#196136e567823b3b1075e8e5c5044f0f">00117</a> uint32_t <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#196136e567823b3b1075e8e5c5044f0f">size</a>()<span class="keyword"> const</span>
<a name="l00118"></a>00118 <span class="keyword"> </span>{
<a name="l00119"></a>00119 <span class="keywordflow">return</span> m_num;
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="keyword">private</span>:
<a name="l00124"></a>00124 uint32_t m_num;
<a name="l00125"></a>00125 uint32_t m_head;
<a name="l00126"></a>00126 uint32_t m_tail;
<a name="l00127"></a>00127 uint32_t m_maxEntries;
<a name="l00128"></a>00128
<a name="l00129"></a>00129 T* data()
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 <span class="keywordflow">return</span> (T*)((<span class="keywordtype">char</span>*)<span class="keyword">this</span> + <span class="keyword">sizeof</span>(<a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html">FixedQueue<T></a>));
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="keyword">private</span>:
<a name="l00135"></a>00135 <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#12feba21bdf02ee2bea2e9e0e5910bf6">FixedQueue</a>(<span class="keyword">const</span> <a class="code" href="class_nv_1_1_blast_1_1_fixed_queue.html#12feba21bdf02ee2bea2e9e0e5910bf6">FixedQueue</a>& that);
<a name="l00136"></a>00136 };
<a name="l00137"></a>00137
<a name="l00138"></a>00138 } <span class="comment">// namespace Blast</span>
<a name="l00139"></a>00139 } <span class="comment">// namespace Nv</span>
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="preprocessor">#endif // ifndef NVBLASTFIXEDQUEUE_H</span>
</pre></div></div>
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