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Added convenience function vmaGetAllocationMemoryProperties

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Regenerated documentation.
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Adam Sawicki 2021-11-23 13:35:19 +01:00
parent 55553cff34
commit fac8ef44d2
9 changed files with 155 additions and 93 deletions
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@ -132,12 +132,12 @@ Defragmenting CPU memory</h1>
<div class="ttc" id="astruct_vma_allocation_info_html"><div class="ttname"><a href="struct_vma_allocation_info.html">VmaAllocationInfo</a></div><div class="ttdoc">Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1357</div></div>
<div class="ttc" id="astruct_vma_allocator_html"><div class="ttname"><a href="struct_vma_allocator.html">VmaAllocator</a></div><div class="ttdoc">Represents main object of this library initialized.</div></div>
<div class="ttc" id="astruct_vma_defragmentation_context_html"><div class="ttname"><a href="struct_vma_defragmentation_context.html">VmaDefragmentationContext</a></div><div class="ttdoc">Represents Opaque object that represents started defragmentation process.</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html"><div class="ttname"><a href="struct_vma_defragmentation_info2.html">VmaDefragmentationInfo2</a></div><div class="ttdoc">Parameters for defragmentation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1763</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a3cf86ab32c1da779b4923d301a3056ba"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a3cf86ab32c1da779b4923d301a3056ba">VmaDefragmentationInfo2::allocationCount</a></div><div class="ttdeci">uint32_t allocationCount</div><div class="ttdoc">Number of allocations in pAllocations array.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1769</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a76d51a644dc7f5405d0cdd0025ecd0cc"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a76d51a644dc7f5405d0cdd0025ecd0cc">VmaDefragmentationInfo2::pAllocationsChanged</a></div><div class="ttdeci">VkBool32 * pAllocationsChanged</div><div class="ttdoc">Optional, output. Pointer to array that will be filled with information whether the allocation at cer...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1784</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a94c2c7223d52878445a8cccce396b671"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a94c2c7223d52878445a8cccce396b671">VmaDefragmentationInfo2::maxCpuAllocationsToMove</a></div><div class="ttdeci">uint32_t maxCpuAllocationsToMove</div><div class="ttdoc">Maximum number of allocations that can be moved to a different place using transfers on CPU side,...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1813</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_ab6d288f29d028156cf73542d630a2e32"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#ab6d288f29d028156cf73542d630a2e32">VmaDefragmentationInfo2::pAllocations</a></div><div class="ttdeci">const VmaAllocation * pAllocations</div><div class="ttdoc">Pointer to array of allocations that can be defragmented.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1778</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_af78e1ea40c22d85137b65f6b384a4d0a"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#af78e1ea40c22d85137b65f6b384a4d0a">VmaDefragmentationInfo2::maxCpuBytesToMove</a></div><div class="ttdeci">VkDeviceSize maxCpuBytesToMove</div><div class="ttdoc">Maximum total numbers of bytes that can be copied while moving allocations to different places using ...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1808</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html"><div class="ttname"><a href="struct_vma_defragmentation_info2.html">VmaDefragmentationInfo2</a></div><div class="ttdoc">Parameters for defragmentation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1774</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a3cf86ab32c1da779b4923d301a3056ba"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a3cf86ab32c1da779b4923d301a3056ba">VmaDefragmentationInfo2::allocationCount</a></div><div class="ttdeci">uint32_t allocationCount</div><div class="ttdoc">Number of allocations in pAllocations array.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1780</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a76d51a644dc7f5405d0cdd0025ecd0cc"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a76d51a644dc7f5405d0cdd0025ecd0cc">VmaDefragmentationInfo2::pAllocationsChanged</a></div><div class="ttdeci">VkBool32 * pAllocationsChanged</div><div class="ttdoc">Optional, output. Pointer to array that will be filled with information whether the allocation at cer...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1795</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a94c2c7223d52878445a8cccce396b671"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a94c2c7223d52878445a8cccce396b671">VmaDefragmentationInfo2::maxCpuAllocationsToMove</a></div><div class="ttdeci">uint32_t maxCpuAllocationsToMove</div><div class="ttdoc">Maximum number of allocations that can be moved to a different place using transfers on CPU side,...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1824</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_ab6d288f29d028156cf73542d630a2e32"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#ab6d288f29d028156cf73542d630a2e32">VmaDefragmentationInfo2::pAllocations</a></div><div class="ttdeci">const VmaAllocation * pAllocations</div><div class="ttdoc">Pointer to array of allocations that can be defragmented.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1789</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_af78e1ea40c22d85137b65f6b384a4d0a"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#af78e1ea40c22d85137b65f6b384a4d0a">VmaDefragmentationInfo2::maxCpuBytesToMove</a></div><div class="ttdeci">VkDeviceSize maxCpuBytesToMove</div><div class="ttdoc">Maximum total numbers of bytes that can be copied while moving allocations to different places using ...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1819</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a36ba776fd7fd5cb1e9359fdc0d8e6e8a"><div class="ttname"><a href="vk__mem__alloc_8h.html#a36ba776fd7fd5cb1e9359fdc0d8e6e8a">vmaDefragmentationBegin</a></div><div class="ttdeci">VkResult vmaDefragmentationBegin(VmaAllocator allocator, const VmaDefragmentationInfo2 *pInfo, VmaDefragmentationStats *pStats, VmaDefragmentationContext *pContext)</div><div class="ttdoc">Begins defragmentation process.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a6b0929b914b60cf2d45cac4bf3547470"><div class="ttname"><a href="vk__mem__alloc_8h.html#a6b0929b914b60cf2d45cac4bf3547470">vmaBindBufferMemory</a></div><div class="ttdeci">VkResult vmaBindBufferMemory(VmaAllocator allocator, VmaAllocation allocation, VkBuffer buffer)</div><div class="ttdoc">Binds buffer to allocation.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a86dd08aba8633bfa4ad0df2e76481d8b"><div class="ttname"><a href="vk__mem__alloc_8h.html#a86dd08aba8633bfa4ad0df2e76481d8b">vmaGetAllocationInfo</a></div><div class="ttdeci">void vmaGetAllocationInfo(VmaAllocator allocator, VmaAllocation allocation, VmaAllocationInfo *pAllocationInfo)</div><div class="ttdoc">Returns current information about specified allocation and atomically marks it as used in current fra...</div></div>
@ -203,9 +203,9 @@ Defragmenting GPU memory</h1>
<div class="line"> <a class="code hl_function" href="vk__mem__alloc_8h.html#a6b0929b914b60cf2d45cac4bf3547470">vmaBindBufferMemory</a>(allocator, allocations[i], buffers[i]);</div>
<div class="line"> }</div>
<div class="line">}</div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a40d53d33e71ba0b66f844ed63c05a3f6"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a40d53d33e71ba0b66f844ed63c05a3f6">VmaDefragmentationInfo2::maxGpuAllocationsToMove</a></div><div class="ttdeci">uint32_t maxGpuAllocationsToMove</div><div class="ttdoc">Maximum number of allocations that can be moved to a different place using transfers on GPU side,...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1823</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a4ddbc898d0afe1518f863a3763628f08"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a4ddbc898d0afe1518f863a3763628f08">VmaDefragmentationInfo2::maxGpuBytesToMove</a></div><div class="ttdeci">VkDeviceSize maxGpuBytesToMove</div><div class="ttdoc">Maximum total numbers of bytes that can be copied while moving allocations to different places using ...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1818</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a7f71f39590c5316771493d2333f9c1bd"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a7f71f39590c5316771493d2333f9c1bd">VmaDefragmentationInfo2::commandBuffer</a></div><div class="ttdeci">VkCommandBuffer commandBuffer</div><div class="ttdoc">Optional. Command buffer where GPU copy commands will be posted.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1832</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a40d53d33e71ba0b66f844ed63c05a3f6"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a40d53d33e71ba0b66f844ed63c05a3f6">VmaDefragmentationInfo2::maxGpuAllocationsToMove</a></div><div class="ttdeci">uint32_t maxGpuAllocationsToMove</div><div class="ttdoc">Maximum number of allocations that can be moved to a different place using transfers on GPU side,...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1834</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a4ddbc898d0afe1518f863a3763628f08"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a4ddbc898d0afe1518f863a3763628f08">VmaDefragmentationInfo2::maxGpuBytesToMove</a></div><div class="ttdeci">VkDeviceSize maxGpuBytesToMove</div><div class="ttdoc">Maximum total numbers of bytes that can be copied while moving allocations to different places using ...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1829</div></div>
<div class="ttc" id="astruct_vma_defragmentation_info2_html_a7f71f39590c5316771493d2333f9c1bd"><div class="ttname"><a href="struct_vma_defragmentation_info2.html#a7f71f39590c5316771493d2333f9c1bd">VmaDefragmentationInfo2::commandBuffer</a></div><div class="ttdeci">VkCommandBuffer commandBuffer</div><div class="ttdoc">Optional. Command buffer where GPU copy commands will be posted.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1843</div></div>
</div><!-- fragment --><p >You can combine these two methods by specifying non-zero <code>maxGpu*</code> as well as <code>maxCpu*</code> parameters. The library automatically chooses best method to defragment each memory pool.</p>
<p >You may try not to block your entire program to wait until defragmentation finishes, but do it in the background, as long as you carefully fullfill requirements described in function <a class="el" href="vk__mem__alloc_8h.html#a36ba776fd7fd5cb1e9359fdc0d8e6e8a" title="Begins defragmentation process.">vmaDefragmentationBegin()</a>.</p>
<h1><a class="anchor" id="defragmentation_additional_notes"></a>

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@ -189,6 +189,7 @@ $(function() {
<li>vmaFreeStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a3104eb30d8122c84dd8541063f145288">vk_mem_alloc.h</a></li>
<li>vmaFreeVirtualBlockStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a47fb8d8aa69df4a7c23a9719b4080623">vk_mem_alloc.h</a></li>
<li>vmaGetAllocationInfo()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a86dd08aba8633bfa4ad0df2e76481d8b">vk_mem_alloc.h</a></li>
<li>vmaGetAllocationMemoryProperties()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a571e87dd38e552249b56b1b0b982fad1">vk_mem_alloc.h</a></li>
<li>vmaGetAllocatorInfo()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#afa02231a791b37255720d566a52683e7">vk_mem_alloc.h</a></li>
<li>vmaGetBudget()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aec0ed24ebea2d0099eed5f801daaefba">vk_mem_alloc.h</a></li>
<li>vmaGetMemoryProperties()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ab88db292a17974f911182543fda52d19">vk_mem_alloc.h</a></li>

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@ -108,6 +108,7 @@ $(function() {
<li>vmaFreeStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a3104eb30d8122c84dd8541063f145288">vk_mem_alloc.h</a></li>
<li>vmaFreeVirtualBlockStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a47fb8d8aa69df4a7c23a9719b4080623">vk_mem_alloc.h</a></li>
<li>vmaGetAllocationInfo()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a86dd08aba8633bfa4ad0df2e76481d8b">vk_mem_alloc.h</a></li>
<li>vmaGetAllocationMemoryProperties()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a571e87dd38e552249b56b1b0b982fad1">vk_mem_alloc.h</a></li>
<li>vmaGetAllocatorInfo()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#afa02231a791b37255720d566a52683e7">vk_mem_alloc.h</a></li>
<li>vmaGetBudget()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aec0ed24ebea2d0099eed5f801daaefba">vk_mem_alloc.h</a></li>
<li>vmaGetMemoryProperties()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ab88db292a17974f911182543fda52d19">vk_mem_alloc.h</a></li>

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@ -138,7 +138,7 @@ Cache flush and invalidate</h1>
<h1><a class="anchor" id="memory_mapping_finding_if_memory_mappable"></a>
Finding out if memory is mappable</h1>
<p >It may happen that your allocation ends up in memory that is <code>HOST_VISIBLE</code> (available for mapping) despite it wasn't explicitly requested. For example, application may work on integrated graphics with unified memory (like Intel) or allocation from video memory might have failed, so the library chose system memory as fallback.</p>
<p >You can detect this case and map such allocation to access its memory on CPU directly, instead of launching a transfer operation. In order to do that: inspect <code>allocInfo.memoryType</code>, call <a class="el" href="vk__mem__alloc_8h.html#a8701444752eb5de4464adb5a2b514bca" title="Given Memory Type Index, returns Property Flags of this memory type.">vmaGetMemoryTypeProperties()</a>, and look for <code>VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT</code> flag in properties of that memory type.</p>
<p >You can detect this case and map such allocation to access its memory on CPU directly, instead of launching a transfer operation. In order to do that: call <a class="el" href="vk__mem__alloc_8h.html#a571e87dd38e552249b56b1b0b982fad1" title="Given an allocation, returns Property Flags of its memory type.">vmaGetAllocationMemoryProperties()</a> and look for <code>VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT</code> flag.</p>
<div class="fragment"><div class="line">VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };</div>
<div class="line">bufCreateInfo.size = <span class="keyword">sizeof</span>(ConstantBuffer);</div>
<div class="line">bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;</div>
@ -149,11 +149,10 @@ Finding out if memory is mappable</h1>
<div class="line"> </div>
<div class="line">VkBuffer buf;</div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation.html">VmaAllocation</a> alloc;</div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation_info.html">VmaAllocationInfo</a> allocInfo;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufCreateInfo, &amp;allocCreateInfo, &amp;buf, &amp;alloc, &amp;allocInfo);</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufCreateInfo, &amp;allocCreateInfo, &amp;buf, &amp;alloc, <span class="keyword">nullptr</span>);</div>
<div class="line"> </div>
<div class="line">VkMemoryPropertyFlags memFlags;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a8701444752eb5de4464adb5a2b514bca">vmaGetMemoryTypeProperties</a>(allocator, allocInfo.<a class="code hl_variable" href="struct_vma_allocation_info.html#a7f6b0aa58c135e488e6b40a388dad9d5">memoryType</a>, &amp;memFlags);</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a571e87dd38e552249b56b1b0b982fad1">vmaGetAllocationMemoryProperties</a>(allocator, alloc, &amp;memFlags);</div>
<div class="line"><span class="keywordflow">if</span>((memFlags &amp; VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)</div>
<div class="line">{</div>
<div class="line"> <span class="comment">// Allocation ended up in mappable memory. You can map it and access it directly.</span></div>
@ -168,8 +167,7 @@ Finding out if memory is mappable</h1>
<div class="line"> <span class="comment">// You need to create CPU-side buffer in VMA_MEMORY_USAGE_CPU_ONLY and make a transfer.</span></div>
<div class="line">}</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a7fe8d81a1ad10b2a2faacacee5b15d6d"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a7fe8d81a1ad10b2a2faacacee5b15d6d">VmaAllocationCreateInfo::preferredFlags</a></div><div class="ttdeci">VkMemoryPropertyFlags preferredFlags</div><div class="ttdoc">Flags that preferably should be set in a memory type chosen for an allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1010</div></div>
<div class="ttc" id="astruct_vma_allocation_info_html_a7f6b0aa58c135e488e6b40a388dad9d5"><div class="ttname"><a href="struct_vma_allocation_info.html#a7f6b0aa58c135e488e6b40a388dad9d5">VmaAllocationInfo::memoryType</a></div><div class="ttdeci">uint32_t memoryType</div><div class="ttdoc">Memory type index that this allocation was allocated from.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1362</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a8701444752eb5de4464adb5a2b514bca"><div class="ttname"><a href="vk__mem__alloc_8h.html#a8701444752eb5de4464adb5a2b514bca">vmaGetMemoryTypeProperties</a></div><div class="ttdeci">void vmaGetMemoryTypeProperties(VmaAllocator allocator, uint32_t memoryTypeIndex, VkMemoryPropertyFlags *pFlags)</div><div class="ttdoc">Given Memory Type Index, returns Property Flags of this memory type.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a571e87dd38e552249b56b1b0b982fad1"><div class="ttname"><a href="vk__mem__alloc_8h.html#a571e87dd38e552249b56b1b0b982fad1">vmaGetAllocationMemoryProperties</a></div><div class="ttdeci">void vmaGetAllocationMemoryProperties(VmaAllocator allocator, VmaAllocation allocation, VkMemoryPropertyFlags *pFlags)</div><div class="ttdoc">Given an allocation, returns Property Flags of its memory type.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_aa5846affa1e9da3800e3e78fae2305ccac6b5dc1432d88647aa4cd456246eadf7"><div class="ttname"><a href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305ccac6b5dc1432d88647aa4cd456246eadf7">VMA_MEMORY_USAGE_GPU_ONLY</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_GPU_ONLY</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:834</div></div>
</div><!-- fragment --><p >You can even use <a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f" title="Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.">VMA_ALLOCATION_CREATE_MAPPED_BIT</a> flag while creating allocations that are not necessarily <code>HOST_VISIBLE</code> (e.g. using <a class="el" href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305ccac6b5dc1432d88647aa4cd456246eadf7">VMA_MEMORY_USAGE_GPU_ONLY</a>). If the allocation ends up in memory type that is <code>HOST_VISIBLE</code>, it will be persistently mapped and you can use it directly. If not, the flag is just ignored. Example:</p>
<div class="fragment"><div class="line">VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };</div>

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['vmagetmemorytypeproperties_46',['vmaGetMemoryTypeProperties',['../vk__mem__alloc_8h.html#a8701444752eb5de4464adb5a2b514bca',1,'vk_mem_alloc.h']]],
['vmagetphysicaldeviceproperties_47',['vmaGetPhysicalDeviceProperties',['../vk__mem__alloc_8h.html#aecabf7b6e91ea87d0316fa0a9e014fe0',1,'vk_mem_alloc.h']]],
['vmagetpoolname_48',['vmaGetPoolName',['../vk__mem__alloc_8h.html#af09b4e4eafdbee812e8d73ddf960f030',1,'vk_mem_alloc.h']]],
['vmagetpoolstats_49',['vmaGetPoolStats',['../vk__mem__alloc_8h.html#ae8bf76997b234ef68aad922616df4153',1,'vk_mem_alloc.h']]],
['vmagetvirtualallocationinfo_50',['vmaGetVirtualAllocationInfo',['../vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e',1,'vk_mem_alloc.h']]],
['vmainvalidateallocation_51',['vmaInvalidateAllocation',['../vk__mem__alloc_8h.html#aaa8412919139ef413a4215ac6a290fae',1,'vk_mem_alloc.h']]],
['vmainvalidateallocations_52',['vmaInvalidateAllocations',['../vk__mem__alloc_8h.html#ab25b558d75f7378ec944a1522fdcc3c5',1,'vk_mem_alloc.h']]],
['vmaisvirtualblockempty_53',['vmaIsVirtualBlockEmpty',['../vk__mem__alloc_8h.html#acd53b5b1d23f8fcbad692ccfdc1811f1',1,'vk_mem_alloc.h']]],
['vmamakepoolallocationslost_54',['vmaMakePoolAllocationsLost',['../vk__mem__alloc_8h.html#a736bd6cbda886f36c891727e73bd4024',1,'vk_mem_alloc.h']]],
['vmamapmemory_55',['vmaMapMemory',['../vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069',1,'vk_mem_alloc.h']]],
['vmasetallocationuserdata_56',['vmaSetAllocationUserData',['../vk__mem__alloc_8h.html#af9147d31ffc11d62fc187bde283ed14f',1,'vk_mem_alloc.h']]],
['vmasetcurrentframeindex_57',['vmaSetCurrentFrameIndex',['../vk__mem__alloc_8h.html#ade56bf8dc9f5a5eaddf5f119ed525236',1,'vk_mem_alloc.h']]],
['vmasetpoolname_58',['vmaSetPoolName',['../vk__mem__alloc_8h.html#adbae3a0b4ab078024462fc85c37f3b58',1,'vk_mem_alloc.h']]],
['vmasetvirtualallocationuserdata_59',['vmaSetVirtualAllocationUserData',['../vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9',1,'vk_mem_alloc.h']]],
['vmatouchallocation_60',['vmaTouchAllocation',['../vk__mem__alloc_8h.html#a43d8ba9673c846f049089a5029d5c73a',1,'vk_mem_alloc.h']]],
['vmaunmapmemory_61',['vmaUnmapMemory',['../vk__mem__alloc_8h.html#a9bc268595cb33f6ec4d519cfce81ff45',1,'vk_mem_alloc.h']]],
['vmavirtualallocate_62',['vmaVirtualAllocate',['../vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2',1,'vk_mem_alloc.h']]],
['vmavirtualfree_63',['vmaVirtualFree',['../vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639',1,'vk_mem_alloc.h']]]
['vmagetallocationmemoryproperties_43',['vmaGetAllocationMemoryProperties',['../vk__mem__alloc_8h.html#a571e87dd38e552249b56b1b0b982fad1',1,'vk_mem_alloc.h']]],
['vmagetallocatorinfo_44',['vmaGetAllocatorInfo',['../vk__mem__alloc_8h.html#afa02231a791b37255720d566a52683e7',1,'vk_mem_alloc.h']]],
['vmagetbudget_45',['vmaGetBudget',['../vk__mem__alloc_8h.html#aec0ed24ebea2d0099eed5f801daaefba',1,'vk_mem_alloc.h']]],
['vmagetmemoryproperties_46',['vmaGetMemoryProperties',['../vk__mem__alloc_8h.html#ab88db292a17974f911182543fda52d19',1,'vk_mem_alloc.h']]],
['vmagetmemorytypeproperties_47',['vmaGetMemoryTypeProperties',['../vk__mem__alloc_8h.html#a8701444752eb5de4464adb5a2b514bca',1,'vk_mem_alloc.h']]],
['vmagetphysicaldeviceproperties_48',['vmaGetPhysicalDeviceProperties',['../vk__mem__alloc_8h.html#aecabf7b6e91ea87d0316fa0a9e014fe0',1,'vk_mem_alloc.h']]],
['vmagetpoolname_49',['vmaGetPoolName',['../vk__mem__alloc_8h.html#af09b4e4eafdbee812e8d73ddf960f030',1,'vk_mem_alloc.h']]],
['vmagetpoolstats_50',['vmaGetPoolStats',['../vk__mem__alloc_8h.html#ae8bf76997b234ef68aad922616df4153',1,'vk_mem_alloc.h']]],
['vmagetvirtualallocationinfo_51',['vmaGetVirtualAllocationInfo',['../vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e',1,'vk_mem_alloc.h']]],
['vmainvalidateallocation_52',['vmaInvalidateAllocation',['../vk__mem__alloc_8h.html#aaa8412919139ef413a4215ac6a290fae',1,'vk_mem_alloc.h']]],
['vmainvalidateallocations_53',['vmaInvalidateAllocations',['../vk__mem__alloc_8h.html#ab25b558d75f7378ec944a1522fdcc3c5',1,'vk_mem_alloc.h']]],
['vmaisvirtualblockempty_54',['vmaIsVirtualBlockEmpty',['../vk__mem__alloc_8h.html#acd53b5b1d23f8fcbad692ccfdc1811f1',1,'vk_mem_alloc.h']]],
['vmamakepoolallocationslost_55',['vmaMakePoolAllocationsLost',['../vk__mem__alloc_8h.html#a736bd6cbda886f36c891727e73bd4024',1,'vk_mem_alloc.h']]],
['vmamapmemory_56',['vmaMapMemory',['../vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069',1,'vk_mem_alloc.h']]],
['vmasetallocationuserdata_57',['vmaSetAllocationUserData',['../vk__mem__alloc_8h.html#af9147d31ffc11d62fc187bde283ed14f',1,'vk_mem_alloc.h']]],
['vmasetcurrentframeindex_58',['vmaSetCurrentFrameIndex',['../vk__mem__alloc_8h.html#ade56bf8dc9f5a5eaddf5f119ed525236',1,'vk_mem_alloc.h']]],
['vmasetpoolname_59',['vmaSetPoolName',['../vk__mem__alloc_8h.html#adbae3a0b4ab078024462fc85c37f3b58',1,'vk_mem_alloc.h']]],
['vmasetvirtualallocationuserdata_60',['vmaSetVirtualAllocationUserData',['../vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9',1,'vk_mem_alloc.h']]],
['vmatouchallocation_61',['vmaTouchAllocation',['../vk__mem__alloc_8h.html#a43d8ba9673c846f049089a5029d5c73a',1,'vk_mem_alloc.h']]],
['vmaunmapmemory_62',['vmaUnmapMemory',['../vk__mem__alloc_8h.html#a9bc268595cb33f6ec4d519cfce81ff45',1,'vk_mem_alloc.h']]],
['vmavirtualallocate_63',['vmaVirtualAllocate',['../vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2',1,'vk_mem_alloc.h']]],
['vmavirtualfree_64',['vmaVirtualFree',['../vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639',1,'vk_mem_alloc.h']]]
];

14
docs/html/virtual_allocator.html
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@ -83,8 +83,8 @@ Creating virtual block</h1>
<div class="line"> </div>
<div class="line"><a class="code hl_struct" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> block;</div>
<div class="line">VkResult res = <a class="code hl_function" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b">vmaCreateVirtualBlock</a>(&amp;blockCreateInfo, &amp;block);</div>
<div class="ttc" id="astruct_vma_virtual_block_create_info_html"><div class="ttname"><a href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></div><div class="ttdoc">Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2191</div></div>
<div class="ttc" id="astruct_vma_virtual_block_create_info_html_a670ab8c6a6e822f3c36781d79e8824e9"><div class="ttname"><a href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9">VmaVirtualBlockCreateInfo::size</a></div><div class="ttdeci">VkDeviceSize size</div><div class="ttdoc">Total size of the virtual block.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2197</div></div>
<div class="ttc" id="astruct_vma_virtual_block_create_info_html"><div class="ttname"><a href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></div><div class="ttdoc">Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2202</div></div>
<div class="ttc" id="astruct_vma_virtual_block_create_info_html_a670ab8c6a6e822f3c36781d79e8824e9"><div class="ttname"><a href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9">VmaVirtualBlockCreateInfo::size</a></div><div class="ttdeci">VkDeviceSize size</div><div class="ttdoc">Total size of the virtual block.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2208</div></div>
<div class="ttc" id="astruct_vma_virtual_block_html"><div class="ttname"><a href="struct_vma_virtual_block.html">VmaVirtualBlock</a></div><div class="ttdoc">Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ab585754076877265fdae33e5c40ef13b"><div class="ttname"><a href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b">vmaCreateVirtualBlock</a></div><div class="ttdeci">VkResult vmaCreateVirtualBlock(const VmaVirtualBlockCreateInfo *pCreateInfo, VmaVirtualBlock *pVirtualBlock)</div><div class="ttdoc">Creates new VmaVirtualBlock object.</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_making_virtual_allocations"></a>
@ -109,8 +109,8 @@ Making virtual allocations</h1>
<div class="line">{</div>
<div class="line"> <span class="comment">// Allocation failed - no space for it could be found. Handle this error!</span></div>
<div class="line">}</div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></div><div class="ttdoc">Parameters of created virtual allocation to be passed to vmaVirtualAllocate().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2239</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html_aae08752b86817abd0d944c6025dc603e"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">VmaVirtualAllocationCreateInfo::size</a></div><div class="ttdeci">VkDeviceSize size</div><div class="ttdoc">Size of the allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2244</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></div><div class="ttdoc">Parameters of created virtual allocation to be passed to vmaVirtualAllocate().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2250</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html_aae08752b86817abd0d944c6025dc603e"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">VmaVirtualAllocationCreateInfo::size</a></div><div class="ttdeci">VkDeviceSize size</div><div class="ttdoc">Size of the allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2255</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a1c15925e6745dacee0cfc877fffecec2"><div class="ttname"><a href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2">vmaVirtualAllocate</a></div><div class="ttdeci">VkResult vmaVirtualAllocate(VmaVirtualBlock virtualBlock, const VmaVirtualAllocationCreateInfo *pCreateInfo, VkDeviceSize *pOffset)</div><div class="ttdoc">Allocates new virtual allocation inside given VmaVirtualBlock.</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_deallocation"></a>
Deallocation</h1>
@ -137,8 +137,8 @@ Allocation parameters</h1>
<div class="line"><span class="keyword">delete</span> (CustomAllocData*)allocInfo.<a class="code hl_variable" href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">pUserData</a>;</div>
<div class="line"> </div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639">vmaVirtualFree</a>(block, allocOffset);</div>
<div class="ttc" id="astruct_vma_virtual_allocation_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a></div><div class="ttdoc">Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2262</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_info_html_a41d5cb09357656411653d82fee436f45"><div class="ttname"><a href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">VmaVirtualAllocationInfo::pUserData</a></div><div class="ttdeci">void * pUserData</div><div class="ttdoc">Custom pointer associated with the allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2272</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a></div><div class="ttdoc">Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2273</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_info_html_a41d5cb09357656411653d82fee436f45"><div class="ttname"><a href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">VmaVirtualAllocationInfo::pUserData</a></div><div class="ttdeci">void * pUserData</div><div class="ttdoc">Custom pointer associated with the allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2283</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ab5fcb961ffea69023e7e0ea100bdad8e"><div class="ttname"><a href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e">vmaGetVirtualAllocationInfo</a></div><div class="ttdeci">void vmaGetVirtualAllocationInfo(VmaVirtualBlock virtualBlock, VkDeviceSize offset, VmaVirtualAllocationInfo *pVirtualAllocInfo)</div><div class="ttdoc">Returns information about a specific virtual allocation within a virtual block, like its size and pUs...</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_alignment_and_units"></a>
Alignment and units</h1>
@ -149,7 +149,7 @@ Alignment and units</h1>
<div class="line"> </div>
<div class="line">VkDeviceSize allocOffset;</div>
<div class="line">res = <a class="code hl_function" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2">vmaVirtualAllocate</a>(block, &amp;allocCreateInfo, &amp;allocOffset);</div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html_a9d19709872fc1904a105079e1c885821"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">VmaVirtualAllocationCreateInfo::alignment</a></div><div class="ttdeci">VkDeviceSize alignment</div><div class="ttdoc">Required alignment of the allocation. Optional.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2249</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html_a9d19709872fc1904a105079e1c885821"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">VmaVirtualAllocationCreateInfo::alignment</a></div><div class="ttdeci">VkDeviceSize alignment</div><div class="ttdoc">Required alignment of the allocation. Optional.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:2260</div></div>
</div><!-- fragment --><p >Alignments of different allocations made from one block may vary. However, if all alignments and sizes are always multiply of some size e.g. 4 B or <code>sizeof(MyDataStruct)</code>, you can express all sizes, alignments, and offsets in multiples of that size instead of individual bytes. It might be more convenient, but you need to make sure to use this new unit consistently in all the places:</p>
<ul>
<li><a class="el" href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9" title="Total size of the virtual block.">VmaVirtualBlockCreateInfo::size</a></li>

40
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@ -447,6 +447,9 @@ Functions</h2></td></tr>
<tr class="memitem:ae5c9657d9e94756269145b01c05d16f1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#ae5c9657d9e94756269145b01c05d16f1">vmaCreateLostAllocation</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> *pAllocation)</td></tr>
<tr class="memdesc:ae5c9657d9e94756269145b01c05d16f1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates new allocation that is in lost state from the beginning. <a href="vk__mem__alloc_8h.html#ae5c9657d9e94756269145b01c05d16f1">More...</a><br /></td></tr>
<tr class="separator:ae5c9657d9e94756269145b01c05d16f1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a571e87dd38e552249b56b1b0b982fad1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a571e87dd38e552249b56b1b0b982fad1">vmaGetAllocationMemoryProperties</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, VkMemoryPropertyFlags *pFlags)</td></tr>
<tr class="memdesc:a571e87dd38e552249b56b1b0b982fad1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Given an allocation, returns Property Flags of its memory type. <a href="vk__mem__alloc_8h.html#a571e87dd38e552249b56b1b0b982fad1">More...</a><br /></td></tr>
<tr class="separator:a571e87dd38e552249b56b1b0b982fad1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad5bd1243512d099706de88168992f069"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069">vmaMapMemory</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, void **ppData)</td></tr>
<tr class="memdesc:ad5bd1243512d099706de88168992f069"><td class="mdescLeft">&#160;</td><td class="mdescRight">Maps memory represented by given allocation and returns pointer to it. <a href="vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069">More...</a><br /></td></tr>
<tr class="separator:ad5bd1243512d099706de88168992f069"><td class="memSeparator" colspan="2">&#160;</td></tr>
@ -3378,6 +3381,43 @@ Functions</h2></td></tr>
<li>If you just want to check if allocation is not lost, <a class="el" href="vk__mem__alloc_8h.html#a43d8ba9673c846f049089a5029d5c73a" title="Returns VK_TRUE if allocation is not lost and atomically marks it as used in current frame.">vmaTouchAllocation()</a> will work faster. </li>
</ul>
</div>
</div>
<a id="a571e87dd38e552249b56b1b0b982fad1" name="a571e87dd38e552249b56b1b0b982fad1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a571e87dd38e552249b56b1b0b982fad1">&#9670;&nbsp;</a></span>vmaGetAllocationMemoryProperties()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void vmaGetAllocationMemoryProperties </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_vma_allocator.html">VmaAllocator</a>&#160;</td>
<td class="paramname"><em>allocator</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_vma_allocation.html">VmaAllocation</a>&#160;</td>
<td class="paramname"><em>allocation</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">VkMemoryPropertyFlags *&#160;</td>
<td class="paramname"><em>pFlags</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Given an allocation, returns Property Flags of its memory type. </p>
<p >This is just a convenience function. Same information can be obtained using <a class="el" href="vk__mem__alloc_8h.html#a86dd08aba8633bfa4ad0df2e76481d8b" title="Returns current information about specified allocation and atomically marks it as used in current fra...">vmaGetAllocationInfo()</a> + <a class="el" href="vk__mem__alloc_8h.html#ab88db292a17974f911182543fda52d19">vmaGetMemoryProperties()</a>. </p>
</div>
</div>
<a id="afa02231a791b37255720d566a52683e7" name="afa02231a791b37255720d566a52683e7"></a>

30
include/vk_mem_alloc.h
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@ -1571,6 +1571,17 @@ VMA_CALL_PRE void VMA_CALL_POST vmaCreateLostAllocation(
VmaAllocator VMA_NOT_NULL allocator,
VmaAllocation VMA_NULLABLE * VMA_NOT_NULL pAllocation);
/**
\brief Given an allocation, returns Property Flags of its memory type.
This is just a convenience function. Same information can be obtained using
vmaGetAllocationInfo() + vmaGetMemoryProperties().
*/
VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocationMemoryProperties(
VmaAllocator VMA_NOT_NULL allocator,
VmaAllocation VMA_NOT_NULL allocation,
VkMemoryPropertyFlags* VMA_NOT_NULL pFlags);
/** \brief Maps memory represented by given allocation and returns pointer to it.
Maps memory represented by given allocation to make it accessible to CPU code.
@ -17665,6 +17676,16 @@ VMA_CALL_PRE void VMA_CALL_POST vmaCreateLostAllocation(
#endif
}
VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocationMemoryProperties(
VmaAllocator VMA_NOT_NULL allocator,
VmaAllocation VMA_NOT_NULL allocation,
VkMemoryPropertyFlags* VMA_NOT_NULL pFlags)
{
VMA_ASSERT(allocator && allocation && pFlags);
const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex();
*pFlags = allocator->m_MemProps.memoryTypes[memTypeIndex].propertyFlags;
}
VMA_CALL_PRE VkResult VMA_CALL_POST vmaMapMemory(
VmaAllocator allocator,
VmaAllocation allocation,
@ -18893,8 +18914,8 @@ allocation from video memory might have failed, so the library chose system memo
You can detect this case and map such allocation to access its memory on CPU directly,
instead of launching a transfer operation.
In order to do that: inspect `allocInfo.memoryType`, call vmaGetMemoryTypeProperties(),
and look for `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag in properties of that memory type.
In order to do that: call vmaGetAllocationMemoryProperties()
and look for `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag.
\code
VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
@ -18907,11 +18928,10 @@ allocCreateInfo.preferredFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
VkBuffer buf;
VmaAllocation alloc;
VmaAllocationInfo allocInfo;
vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo);
vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, nullptr);
VkMemoryPropertyFlags memFlags;
vmaGetMemoryTypeProperties(allocator, allocInfo.memoryType, &memFlags);
vmaGetAllocationMemoryProperties(allocator, alloc, &memFlags);
if((memFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
{
// Allocation ended up in mappable memory. You can map it and access it directly.