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<div class="title">ClBackendDefaultAllocator.hpp</div> </div>
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<a href="_cl_backend_default_allocator_8hpp.xhtml">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">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include <cstddef></span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <memory></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <<a class="code" href="_memory_sources_8hpp.xhtml">armnn/MemorySources.hpp</a>></span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <<a class="code" href="_ignore_unused_8hpp.xhtml">armnn/utility/IgnoreUnused.hpp</a>></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">namespace </span><a class="code" href="namespacearmnn.xhtml">armnn</a></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> {<span class="comment"></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">/** Default Memory Allocator class returned from IBackendInternal::GetDefaultAllocator(MemorySource) */</span></div><div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="classarmnn_1_1_cl_backend_default_allocator.xhtml"> 14</a></span> <span class="keyword">class </span><a class="code" href="classarmnn_1_1_cl_backend_default_allocator.xhtml">ClBackendDefaultAllocator</a> : <span class="keyword">public</span> <a class="code" href="classarmnn_1_1_i_custom_allocator.xhtml">armnn::ICustomAllocator</a></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> {</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <a class="code" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#abfc962c683abad5e8da9de3b6fc6445e">ClBackendDefaultAllocator</a>() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#ac1e67a1d72b9220446e80f16350ff12b"> 19</a></span>  <span class="keywordtype">void</span>* <a class="code" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#ac1e67a1d72b9220446e80f16350ff12b">allocate</a>(<span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> alignment = 0)<span class="keyword"> override</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <a class="code" href="namespacearmnn.xhtml#a44affeeb090c3c6a3062830562672e84">IgnoreUnused</a>(alignment);</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  cl_mem buf{ clCreateBuffer(arm_compute::CLScheduler::get().context().<span class="keyword">get</span>(),</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE,</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  size,</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keyword">nullptr</span>,</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">nullptr</span>)};</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">void</span> *<span class="keyword">></span>(buf);</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> </div><div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#abbd17af5b3fbeff226e4051433c1b929"> 30</a></span>  <span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#abbd17af5b3fbeff226e4051433c1b929">free</a>(<span class="keywordtype">void</span>* ptr)<span class="keyword"> override</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  ARM_COMPUTE_ERROR_ON(ptr == <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  clReleaseMemObject(static_cast<cl_mem>(ptr));</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> </div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#a6b2cd9a186746b493f029fb93bb13226"> 36</a></span>  <a class="code" href="namespacearmnn.xhtml#a14fcd7f88d11cea0a018269dca5f9277">armnn::MemorySource</a> <a class="code" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#a6b2cd9a186746b493f029fb93bb13226">GetMemorySourceType</a>()<span class="keyword"> override</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">return</span> <a class="code" href="namespacearmnn.xhtml#a14fcd7f88d11cea0a018269dca5f9277a4bafe7f8ad22a8eca972a7ac5eb6702e">armnn::MemorySource::Gralloc</a>;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  }</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#a70ba99b0598f9e19b1c81e55e3b3ec8a"> 41</a></span>  <span class="keywordtype">void</span>* <a class="code" href="classarmnn_1_1_cl_backend_default_allocator.xhtml#a70ba99b0598f9e19b1c81e55e3b3ec8a">GetMemoryRegionAtOffset</a>(<span class="keywordtype">void</span>* buffer, <span class="keywordtype">size_t</span> offset, <span class="keywordtype">size_t</span> alignment = 0)<span class="keyword"> override</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <a class="code" href="namespacearmnn.xhtml#a44affeeb090c3c6a3062830562672e84">IgnoreUnused</a>(alignment);</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">char</span>*<span class="keyword">></span>(buffer) + offset;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  }</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="comment">// namespace armnn</span></div><div class="ttc" id="classarmnn_1_1_i_custom_allocator_xhtml"><div class="ttname"><a href="classarmnn_1_1_i_custom_allocator.xhtml">armnn::ICustomAllocator</a></div><div class="ttdoc">Custom Allocator interface. </div><div class="ttdef"><b>Definition:</b> <a href="_i_custom_allocator_8hpp_source.xhtml#l00016">ICustomAllocator.hpp:16</a></div></div>
<div class="ttc" id="_ignore_unused_8hpp_xhtml"><div class="ttname"><a href="_ignore_unused_8hpp.xhtml">IgnoreUnused.hpp</a></div></div>
<div class="ttc" id="classarmnn_1_1_cl_backend_default_allocator_xhtml"><div class="ttname"><a href="classarmnn_1_1_cl_backend_default_allocator.xhtml">armnn::ClBackendDefaultAllocator</a></div><div class="ttdoc">Default Memory Allocator class returned from IBackendInternal::GetDefaultAllocator(MemorySource) ...</div><div class="ttdef"><b>Definition:</b> <a href="_cl_backend_default_allocator_8hpp_source.xhtml#l00014">ClBackendDefaultAllocator.hpp:14</a></div></div>
<div class="ttc" id="classarmnn_1_1_cl_backend_default_allocator_xhtml_abbd17af5b3fbeff226e4051433c1b929"><div class="ttname"><a href="classarmnn_1_1_cl_backend_default_allocator.xhtml#abbd17af5b3fbeff226e4051433c1b929">armnn::ClBackendDefaultAllocator::free</a></div><div class="ttdeci">void free(void *ptr) override</div><div class="ttdoc">Interface to be implemented by the child class to free the allocated bytes. </div><div class="ttdef"><b>Definition:</b> <a href="_cl_backend_default_allocator_8hpp_source.xhtml#l00030">ClBackendDefaultAllocator.hpp:30</a></div></div>
<div class="ttc" id="classarmnn_1_1_cl_backend_default_allocator_xhtml_a6b2cd9a186746b493f029fb93bb13226"><div class="ttname"><a href="classarmnn_1_1_cl_backend_default_allocator.xhtml#a6b2cd9a186746b493f029fb93bb13226">armnn::ClBackendDefaultAllocator::GetMemorySourceType</a></div><div class="ttdeci">armnn::MemorySource GetMemorySourceType() override</div><div class="ttdoc">Used to specify what type of memory is being allocated by this allocator. </div><div class="ttdef"><b>Definition:</b> <a href="_cl_backend_default_allocator_8hpp_source.xhtml#l00036">ClBackendDefaultAllocator.hpp:36</a></div></div>
<div class="ttc" id="classarmnn_1_1_cl_backend_default_allocator_xhtml_ac1e67a1d72b9220446e80f16350ff12b"><div class="ttname"><a href="classarmnn_1_1_cl_backend_default_allocator.xhtml#ac1e67a1d72b9220446e80f16350ff12b">armnn::ClBackendDefaultAllocator::allocate</a></div><div class="ttdeci">void * allocate(size_t size, size_t alignment=0) override</div><div class="ttdoc">Interface to be implemented by the child class to allocate bytes. </div><div class="ttdef"><b>Definition:</b> <a href="_cl_backend_default_allocator_8hpp_source.xhtml#l00019">ClBackendDefaultAllocator.hpp:19</a></div></div>
<div class="ttc" id="namespacearmnn_xhtml"><div class="ttname"><a href="namespacearmnn.xhtml">armnn</a></div><div class="ttdoc">Copyright (c) 2021 ARM Limited and Contributors. </div><div class="ttdef"><b>Definition:</b> <a href="01__00__quick__start_8dox_source.xhtml#l00006">01_00_quick_start.dox:6</a></div></div>
<div class="ttc" id="namespacearmnn_xhtml_a44affeeb090c3c6a3062830562672e84"><div class="ttname"><a href="namespacearmnn.xhtml#a44affeeb090c3c6a3062830562672e84">armnn::IgnoreUnused</a></div><div class="ttdeci">void IgnoreUnused(Ts &&...)</div><div class="ttdef"><b>Definition:</b> <a href="_ignore_unused_8hpp_source.xhtml#l00014">IgnoreUnused.hpp:14</a></div></div>
<div class="ttc" id="classarmnn_1_1_cl_backend_default_allocator_xhtml_a70ba99b0598f9e19b1c81e55e3b3ec8a"><div class="ttname"><a href="classarmnn_1_1_cl_backend_default_allocator.xhtml#a70ba99b0598f9e19b1c81e55e3b3ec8a">armnn::ClBackendDefaultAllocator::GetMemoryRegionAtOffset</a></div><div class="ttdeci">void * GetMemoryRegionAtOffset(void *buffer, size_t offset, size_t alignment=0) override</div><div class="ttdoc">Interface that may be implemented to allow retrieval of Memory Region from allocated buffer at a cert...</div><div class="ttdef"><b>Definition:</b> <a href="_cl_backend_default_allocator_8hpp_source.xhtml#l00041">ClBackendDefaultAllocator.hpp:41</a></div></div>
<div class="ttc" id="_memory_sources_8hpp_xhtml"><div class="ttname"><a href="_memory_sources_8hpp.xhtml">MemorySources.hpp</a></div></div>
<div class="ttc" id="namespacearmnn_xhtml_a14fcd7f88d11cea0a018269dca5f9277a4bafe7f8ad22a8eca972a7ac5eb6702e"><div class="ttname"><a href="namespacearmnn.xhtml#a14fcd7f88d11cea0a018269dca5f9277a4bafe7f8ad22a8eca972a7ac5eb6702e">armnn::MemorySource::Gralloc</a></div></div>
<div class="ttc" id="classarmnn_1_1_cl_backend_default_allocator_xhtml_abfc962c683abad5e8da9de3b6fc6445e"><div class="ttname"><a href="classarmnn_1_1_cl_backend_default_allocator.xhtml#abfc962c683abad5e8da9de3b6fc6445e">armnn::ClBackendDefaultAllocator::ClBackendDefaultAllocator</a></div><div class="ttdeci">ClBackendDefaultAllocator()=default</div></div>
<div class="ttc" id="namespacearmnn_xhtml_a14fcd7f88d11cea0a018269dca5f9277"><div class="ttname"><a href="namespacearmnn.xhtml#a14fcd7f88d11cea0a018269dca5f9277">armnn::MemorySource</a></div><div class="ttdeci">MemorySource</div><div class="ttdoc">Define the Memory Source to reduce copies. </div><div class="ttdef"><b>Definition:</b> <a href="_types_8hpp_source.xhtml#l00217">Types.hpp:217</a></div></div>
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