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<div class="headertitle"><div class="title">Memory.cpp</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include "Memory.h"</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="keyword">namespace </span>fpr</div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span>{</div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span>uint32_t FindMemoryTypeIndex(</div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> vk::PhysicalDevice physical_device,</div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span> uint32_t type_field,</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> vk::MemoryPropertyFlags type_flags)</div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span>{</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> vk::PhysicalDeviceMemoryProperties device_mem_properties = physical_device.getMemoryProperties();</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> <span class="keywordflow">for</span>(uint32_t index = 0; index < device_mem_properties.memoryTypeCount; ++index)</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> {</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> <span class="keywordtype">bool</span> memory_type_index_found = IsNthBitSet(type_field, index) &&</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> IsOnlyNthBitSet(<span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(device_mem_properties.memoryTypes[index].propertyFlags),</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(type_flags));</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="keywordflow">if</span>(memory_type_index_found)</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> <span class="keywordflow">return</span> index;</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> }</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="keywordflow">return</span> std::numeric_limits<uint32_t>::max();</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span>}</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="keywordtype">bool</span> IsNthBitSet(uint32_t bit_field, uint32_t nth_bit) FPR_NOEXCEPT</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span>{</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordflow">return</span> (bit_field & (1 << nth_bit));</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span>};</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keywordtype">bool</span> IsOnlyNthBitSet(uint32_t bit_field, uint32_t nth_bit) FPR_NOEXCEPT</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span>{</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">return</span> (bit_field & nth_bit) == nth_bit;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span>}</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span>vk::UniqueDeviceMemory CreateImageMemory(<a class="code hl_class" href="classfpr_1_1_device.html">fpr::Device</a>* device, vk::Image image)</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>{</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> vk::MemoryRequirements mem_req = device->GetLogicalDeviceHandle().getImageMemoryRequirements(image);</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> vk::MemoryAllocateInfo mem_alloc_info{};</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> mem_alloc_info.allocationSize = mem_req.size;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> mem_alloc_info.memoryTypeIndex = fpr::FindMemoryTypeIndex(</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> device->GetPhysicalDeviceHandle(), mem_req.memoryTypeBits, vk::MemoryPropertyFlagBits::eDeviceLocal);</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">auto</span> [alloc_result, img_mem] = device->GetLogicalDeviceHandle().allocateMemoryUnique(mem_alloc_info);</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> assert((<span class="stringliteral">"Failed to allocate image memory!"</span>, alloc_result == vk::Result::eSuccess));</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> [[maybe_unused]] vk::Result bind_result = device->GetLogicalDeviceHandle().bindImageMemory(image, *img_mem, 0);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> assert((<span class="stringliteral">"Failed to bind image memory!"</span>, bind_result == vk::Result::eSuccess));</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">return</span> std::move(img_mem);</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span>}</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span>}</div>
<div class="ttc" id="aclassfpr_1_1_device_html"><div class="ttname"><a href="classfpr_1_1_device.html">fpr::Device</a></div><div class="ttdef"><b>Definition:</b> <a href="_device_8h_source.html#l00007">Device.h:8</a></div></div>
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