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Merge branch 'feature-virtual-allocator'

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Adam Sawicki 2021-10-30 23:29:53 +02:00
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docs/html/allocation_annotation.html
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@ -84,21 +84,21 @@ Allocation user data</h1>
<div class="line">VkBuffer buffer;</div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation.html">VmaAllocation</a> allocation;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufferInfo, &amp;allocCreateInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:987</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a8259e85c272683434f4abb4ddddffe19"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19">VmaAllocationCreateInfo::pUserData</a></div><div class="ttdeci">void * pUserData</div><div class="ttdoc">Custom general-purpose pointer that will be stored in VmaAllocation, can be read as VmaAllocationInfo...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1026</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:995</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:988</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a8259e85c272683434f4abb4ddddffe19"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19">VmaAllocationCreateInfo::pUserData</a></div><div class="ttdeci">void * pUserData</div><div class="ttdoc">Custom general-purpose pointer that will be stored in VmaAllocation, can be read as VmaAllocationInfo...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1027</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:996</div></div>
<div class="ttc" id="astruct_vma_allocation_html"><div class="ttname"><a href="struct_vma_allocation.html">VmaAllocation</a></div><div class="ttdoc">Represents single memory allocation.</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:829</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:830</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a></div><div class="ttdeci">VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)</div></div>
</div><!-- fragment --><p >The pointer may be later retrieved as <a class="el" href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13" title="Custom general-purpose pointer that was passed as VmaAllocationCreateInfo::pUserData or set using vma...">VmaAllocationInfo::pUserData</a>:</p>
<div class="fragment"><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#a86dd08aba8633bfa4ad0df2e76481d8b">vmaGetAllocationInfo</a>(allocator, allocation, &amp;allocInfo);</div>
<div class="line">MyBufferMetadata* pMetadata = (MyBufferMetadata*)allocInfo.<a class="code hl_variable" href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13">pUserData</a>;</div>
<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:1354</div></div>
<div class="ttc" id="astruct_vma_allocation_info_html_adc507656149c04de7ed95d0042ba2a13"><div class="ttname"><a href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13">VmaAllocationInfo::pUserData</a></div><div class="ttdeci">void * pUserData</div><div class="ttdoc">Custom general-purpose pointer that was passed as VmaAllocationCreateInfo::pUserData or set using vma...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1403</div></div>
<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:1353</div></div>
<div class="ttc" id="astruct_vma_allocation_info_html_adc507656149c04de7ed95d0042ba2a13"><div class="ttname"><a href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13">VmaAllocationInfo::pUserData</a></div><div class="ttdeci">void * pUserData</div><div class="ttdoc">Custom general-purpose pointer that was passed as VmaAllocationCreateInfo::pUserData or set using vma...</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1402</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>
</div><!-- fragment --><p >It can also be changed using function <a class="el" href="vk__mem__alloc_8h.html#af9147d31ffc11d62fc187bde283ed14f" title="Sets pUserData in given allocation to new value.">vmaSetAllocationUserData()</a>.</p>
<p >Values of (non-zero) allocations' <code>pUserData</code> are printed in JSON report created by <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as string in JSON format.">vmaBuildStatsString()</a>, in hexadecimal form.</p>
<p >Values of (non-zero) allocations' <code>pUserData</code> are printed in JSON report created by <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as a null-terminated string in JSON format.">vmaBuildStatsString()</a>, in hexadecimal form.</p>
<h1><a class="anchor" id="allocation_names"></a>
Allocation names</h1>
<p >There is alternative mode available where <code>pUserData</code> pointer is used to point to a null-terminated string, giving a name to the allocation. To use this mode, set <a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520">VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT</a> flag in <a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b" title="Use VmaAllocationCreateFlagBits enum.">VmaAllocationCreateInfo::flags</a>. Then <code>pUserData</code> passed as <a class="el" href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19" title="Custom general-purpose pointer that will be stored in VmaAllocation, can be read as VmaAllocationInfo...">VmaAllocationCreateInfo::pUserData</a> or argument to <a class="el" href="vk__mem__alloc_8h.html#af9147d31ffc11d62fc187bde283ed14f" title="Sets pUserData in given allocation to new value.">vmaSetAllocationUserData()</a> must be either null or pointer to a null-terminated string. The library creates internal copy of the string, so the pointer you pass doesn't need to be valid for whole lifetime of the allocation. You can free it after the call.</p>
@ -116,15 +116,15 @@ Allocation names</h1>
<div class="line">VkImage image;</div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation.html">VmaAllocation</a> allocation;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a02a94f25679275851a53e82eacbcfc73">vmaCreateImage</a>(allocator, &amp;imageInfo, &amp;allocCreateInfo, &amp;image, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_add09658ac14fe290ace25470ddd6d41b"><div class="ttname"><a href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo::flags</a></div><div class="ttdeci">VmaAllocationCreateFlags flags</div><div class="ttdoc">Use VmaAllocationCreateFlagBits enum.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:989</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_add09658ac14fe290ace25470ddd6d41b"><div class="ttname"><a href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo::flags</a></div><div class="ttdeci">VmaAllocationCreateFlags flags</div><div class="ttdoc">Use VmaAllocationCreateFlagBits enum.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:990</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a02a94f25679275851a53e82eacbcfc73"><div class="ttname"><a href="vk__mem__alloc_8h.html#a02a94f25679275851a53e82eacbcfc73">vmaCreateImage</a></div><div class="ttdeci">VkResult vmaCreateImage(VmaAllocator allocator, const VkImageCreateInfo *pImageCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkImage *pImage, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)</div><div class="ttdoc">Function similar to vmaCreateBuffer().</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520">VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:932</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520">VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:933</div></div>
</div><!-- fragment --><p >The value of <code>pUserData</code> pointer of the allocation will be different than the one you passed when setting allocation's name - pointing to a buffer managed internally that holds copy of the string.</p>
<div class="fragment"><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#a86dd08aba8633bfa4ad0df2e76481d8b">vmaGetAllocationInfo</a>(allocator, allocation, &amp;allocInfo);</div>
<div class="line"><span class="keyword">const</span> <span class="keywordtype">char</span>* imageName = (<span class="keyword">const</span> <span class="keywordtype">char</span>*)allocInfo.<a class="code hl_variable" href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13">pUserData</a>;</div>
<div class="line">printf(<span class="stringliteral">&quot;Image name: %s\n&quot;</span>, imageName);</div>
</div><!-- fragment --><p >That string is also printed in JSON report created by <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as string in JSON format.">vmaBuildStatsString()</a>.</p>
</div><!-- fragment --><p >That string is also printed in JSON report created by <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as a null-terminated string in JSON format.">vmaBuildStatsString()</a>.</p>
<dl class="section note"><dt>Note</dt><dd>Passing string name to VMA allocation doesn't automatically set it to the Vulkan buffer or image created with it. You must do it manually using an extension like VK_EXT_debug_utils, which is independent of this library. </dd></dl>
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@ -87,7 +87,11 @@ $(function() {
<tr id="row_17_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_record_settings.html" target="_self">VmaRecordSettings</a></td><td class="desc">Parameters for recording calls to VMA functions. To be used in <a class="el" href="struct_vma_allocator_create_info.html#ace2aa4877b16a42b0b7673d4e26000ee" title="Parameters for recording of VMA calls. Can be null.">VmaAllocatorCreateInfo::pRecordSettings</a> </td></tr>
<tr id="row_18_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_stat_info.html" target="_self">VmaStatInfo</a></td><td class="desc">Calculated statistics of memory usage in entire allocator </td></tr>
<tr id="row_19_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_stats.html" target="_self">VmaStats</a></td><td class="desc">General statistics from current state of Allocator </td></tr>
<tr id="row_20_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_vulkan_functions.html" target="_self">VmaVulkanFunctions</a></td><td class="desc">Pointers to some Vulkan functions - a subset used by the library </td></tr>
<tr id="row_20_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_virtual_allocation_create_info.html" target="_self">VmaVirtualAllocationCreateInfo</a></td><td class="desc">Parameters of created virtual allocation to be passed to <a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2" title="Allocates new virtual allocation inside given VmaVirtualBlock.">vmaVirtualAllocate()</a> </td></tr>
<tr id="row_21_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_virtual_allocation_info.html" target="_self">VmaVirtualAllocationInfo</a></td><td class="desc">Parameters of an existing virtual allocation, returned by <a class="el" href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e" title="Returns information about a specific virtual allocation within a virtual block, like its size and pUs...">vmaGetVirtualAllocationInfo()</a> </td></tr>
<tr id="row_22_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_virtual_block.html" target="_self">VmaVirtualBlock</a></td><td class="desc">Handle to a virtual block object that allows to use core allocation algorithm without allocating any real GPU memory </td></tr>
<tr id="row_23_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_virtual_block_create_info.html" target="_self">VmaVirtualBlockCreateInfo</a></td><td class="desc">Parameters of created <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object to be passed to <a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b" title="Creates new VmaVirtualBlock object.">vmaCreateVirtualBlock()</a> </td></tr>
<tr id="row_24_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="struct_vma_vulkan_functions.html" target="_self">VmaVulkanFunctions</a></td><td class="desc">Pointers to some Vulkan functions - a subset used by the library </td></tr>
</table>
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@ -93,10 +93,10 @@ Usage</h1>
<div class="line">VkBuffer buffer;</div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation.html">VmaAllocation</a> allocation;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufferInfo, &amp;allocInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:987</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:995</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:988</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:996</div></div>
<div class="ttc" id="astruct_vma_allocation_html"><div class="ttname"><a href="struct_vma_allocation.html">VmaAllocation</a></div><div class="ttdoc">Represents single memory allocation.</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:829</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:830</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a></div><div class="ttdeci">VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)</div></div>
</div><!-- fragment --><h1><a class="anchor" id="choosing_memory_type_required_preferred_flags"></a>
Required and preferred flags</h1>
@ -109,10 +109,10 @@ Required and preferred flags</h1>
<div class="line">VkBuffer buffer;</div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation.html">VmaAllocation</a> allocation;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufferInfo, &amp;allocInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</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:1005</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a9166390303ff42d783305bc31c2b6b90"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a9166390303ff42d783305bc31c2b6b90">VmaAllocationCreateInfo::requiredFlags</a></div><div class="ttdeci">VkMemoryPropertyFlags requiredFlags</div><div class="ttdoc">Flags that must be set in a Memory Type chosen for an allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1000</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_add09658ac14fe290ace25470ddd6d41b"><div class="ttname"><a href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo::flags</a></div><div class="ttdeci">VmaAllocationCreateFlags flags</div><div class="ttdoc">Use VmaAllocationCreateFlagBits enum.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:989</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f">VMA_ALLOCATION_CREATE_MAPPED_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_MAPPED_BIT</div><div class="ttdoc">Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:906</div></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:1006</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a9166390303ff42d783305bc31c2b6b90"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a9166390303ff42d783305bc31c2b6b90">VmaAllocationCreateInfo::requiredFlags</a></div><div class="ttdeci">VkMemoryPropertyFlags requiredFlags</div><div class="ttdoc">Flags that must be set in a Memory Type chosen for an allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1001</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_add09658ac14fe290ace25470ddd6d41b"><div class="ttname"><a href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo::flags</a></div><div class="ttdeci">VmaAllocationCreateFlags flags</div><div class="ttdoc">Use VmaAllocationCreateFlagBits enum.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:990</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f">VMA_ALLOCATION_CREATE_MAPPED_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_MAPPED_BIT</div><div class="ttdoc">Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:907</div></div>
</div><!-- fragment --><p >A memory type is chosen that has all the required flags and as many preferred flags set as possible.</p>
<p >If you use <a class="el" href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910" title="Intended usage of memory.">VmaAllocationCreateInfo::usage</a>, it is just internally converted to a set of required and preferred flags.</p>
<h1><a class="anchor" id="choosing_memory_type_explicit_memory_types"></a>
@ -127,7 +127,7 @@ Explicit memory types</h1>
<div class="line">VkBuffer buffer;</div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation.html">VmaAllocation</a> allocation;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufferInfo, &amp;allocInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a3bf940c0271d85d6ba32a4d820075055"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a3bf940c0271d85d6ba32a4d820075055">VmaAllocationCreateInfo::memoryTypeBits</a></div><div class="ttdeci">uint32_t memoryTypeBits</div><div class="ttdoc">Bitmask containing one bit set for every memory type acceptable for this allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1013</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a3bf940c0271d85d6ba32a4d820075055"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a3bf940c0271d85d6ba32a4d820075055">VmaAllocationCreateInfo::memoryTypeBits</a></div><div class="ttdeci">uint32_t memoryTypeBits</div><div class="ttdoc">Bitmask containing one bit set for every memory type acceptable for this allocation.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1014</div></div>
</div><!-- fragment --><h1><a class="anchor" id="choosing_memory_type_custom_memory_pools"></a>
Custom memory pools</h1>
<p >If you allocate from custom memory pool, all the ways of specifying memory requirements described above are not applicable and the aforementioned members of <a class="el" href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a> structure are ignored. Memory type is selected explicitly when creating the pool and then used to make all the allocations from that pool. For further details, see <a class="el" href="custom_memory_pools.html">Custom memory pools</a>.</p>

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@ -69,7 +69,7 @@ $(function() {
<div class="classindex">
<dl class="classindex even">
<dt class="alphachar"><a id="letter_V" name="letter_V">V</a></dt>
<dd><a class="el" href="struct_vma_allocation.html">VmaAllocation</a></dd><dd><a class="el" href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></dd><dd><a class="el" href="struct_vma_allocation_info.html">VmaAllocationInfo</a></dd><dd><a class="el" href="struct_vma_allocator.html">VmaAllocator</a></dd><dd><a class="el" href="struct_vma_allocator_create_info.html">VmaAllocatorCreateInfo</a></dd><dd><a class="el" href="struct_vma_allocator_info.html">VmaAllocatorInfo</a></dd><dd><a class="el" href="struct_vma_budget.html">VmaBudget</a></dd><dd><a class="el" href="struct_vma_defragmentation_context.html">VmaDefragmentationContext</a></dd><dd><a class="el" href="struct_vma_defragmentation_info.html">VmaDefragmentationInfo</a></dd><dd><a class="el" href="struct_vma_defragmentation_info2.html">VmaDefragmentationInfo2</a></dd><dd><a class="el" href="struct_vma_defragmentation_pass_info.html">VmaDefragmentationPassInfo</a></dd><dd><a class="el" href="struct_vma_defragmentation_pass_move_info.html">VmaDefragmentationPassMoveInfo</a></dd><dd><a class="el" href="struct_vma_defragmentation_stats.html">VmaDefragmentationStats</a></dd><dd><a class="el" href="struct_vma_device_memory_callbacks.html">VmaDeviceMemoryCallbacks</a></dd><dd><a class="el" href="struct_vma_pool.html">VmaPool</a></dd><dd><a class="el" href="struct_vma_pool_create_info.html">VmaPoolCreateInfo</a></dd><dd><a class="el" href="struct_vma_pool_stats.html">VmaPoolStats</a></dd><dd><a class="el" href="struct_vma_record_settings.html">VmaRecordSettings</a></dd><dd><a class="el" href="struct_vma_stat_info.html">VmaStatInfo</a></dd><dd><a class="el" href="struct_vma_stats.html">VmaStats</a></dd><dd><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></dd></dl>
<dd><a class="el" href="struct_vma_allocation.html">VmaAllocation</a></dd><dd><a class="el" href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></dd><dd><a class="el" href="struct_vma_allocation_info.html">VmaAllocationInfo</a></dd><dd><a class="el" href="struct_vma_allocator.html">VmaAllocator</a></dd><dd><a class="el" href="struct_vma_allocator_create_info.html">VmaAllocatorCreateInfo</a></dd><dd><a class="el" href="struct_vma_allocator_info.html">VmaAllocatorInfo</a></dd><dd><a class="el" href="struct_vma_budget.html">VmaBudget</a></dd><dd><a class="el" href="struct_vma_defragmentation_context.html">VmaDefragmentationContext</a></dd><dd><a class="el" href="struct_vma_defragmentation_info.html">VmaDefragmentationInfo</a></dd><dd><a class="el" href="struct_vma_defragmentation_info2.html">VmaDefragmentationInfo2</a></dd><dd><a class="el" href="struct_vma_defragmentation_pass_info.html">VmaDefragmentationPassInfo</a></dd><dd><a class="el" href="struct_vma_defragmentation_pass_move_info.html">VmaDefragmentationPassMoveInfo</a></dd><dd><a class="el" href="struct_vma_defragmentation_stats.html">VmaDefragmentationStats</a></dd><dd><a class="el" href="struct_vma_device_memory_callbacks.html">VmaDeviceMemoryCallbacks</a></dd><dd><a class="el" href="struct_vma_pool.html">VmaPool</a></dd><dd><a class="el" href="struct_vma_pool_create_info.html">VmaPoolCreateInfo</a></dd><dd><a class="el" href="struct_vma_pool_stats.html">VmaPoolStats</a></dd><dd><a class="el" href="struct_vma_record_settings.html">VmaRecordSettings</a></dd><dd><a class="el" href="struct_vma_stat_info.html">VmaStatInfo</a></dd><dd><a class="el" href="struct_vma_stats.html">VmaStats</a></dd><dd><a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></dd><dd><a class="el" href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a></dd><dd><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a></dd><dd><a class="el" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></dd><dd><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></dd></dl>
</div>
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@ -106,13 +106,13 @@ $(function() {
<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="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:987</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a6272c0555cfd1fe28bff1afeb6190150"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a6272c0555cfd1fe28bff1afeb6190150">VmaAllocationCreateInfo::pool</a></div><div class="ttdeci">VmaPool pool</div><div class="ttdoc">Pool that this allocation should be created in.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1019</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:988</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_a6272c0555cfd1fe28bff1afeb6190150"><div class="ttname"><a href="struct_vma_allocation_create_info.html#a6272c0555cfd1fe28bff1afeb6190150">VmaAllocationCreateInfo::pool</a></div><div class="ttdeci">VmaPool pool</div><div class="ttdoc">Pool that this allocation should be created in.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1020</div></div>
<div class="ttc" id="astruct_vma_allocation_html"><div class="ttname"><a href="struct_vma_allocation.html">VmaAllocation</a></div><div class="ttdoc">Represents single memory allocation.</div></div>
<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:1354</div></div>
<div class="ttc" id="astruct_vma_pool_create_info_html"><div class="ttname"><a href="struct_vma_pool_create_info.html">VmaPoolCreateInfo</a></div><div class="ttdoc">Describes parameter of created VmaPool.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1155</div></div>
<div class="ttc" id="astruct_vma_pool_create_info_html_a596fa76b685d3f1f688f84a709a5b319"><div class="ttname"><a href="struct_vma_pool_create_info.html#a596fa76b685d3f1f688f84a709a5b319">VmaPoolCreateInfo::memoryTypeIndex</a></div><div class="ttdeci">uint32_t memoryTypeIndex</div><div class="ttdoc">Vulkan memory type index to allocate this pool from.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1158</div></div>
<div class="ttc" id="astruct_vma_pool_create_info_html_ae41142f2834fcdc82baa4883c187b75c"><div class="ttname"><a href="struct_vma_pool_create_info.html#ae41142f2834fcdc82baa4883c187b75c">VmaPoolCreateInfo::maxBlockCount</a></div><div class="ttdeci">size_t maxBlockCount</div><div class="ttdoc">Maximum number of blocks that can be allocated in this pool. Optional.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1183</div></div>
<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:1353</div></div>
<div class="ttc" id="astruct_vma_pool_create_info_html"><div class="ttname"><a href="struct_vma_pool_create_info.html">VmaPoolCreateInfo</a></div><div class="ttdoc">Describes parameter of created VmaPool.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1154</div></div>
<div class="ttc" id="astruct_vma_pool_create_info_html_a596fa76b685d3f1f688f84a709a5b319"><div class="ttname"><a href="struct_vma_pool_create_info.html#a596fa76b685d3f1f688f84a709a5b319">VmaPoolCreateInfo::memoryTypeIndex</a></div><div class="ttdeci">uint32_t memoryTypeIndex</div><div class="ttdoc">Vulkan memory type index to allocate this pool from.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1157</div></div>
<div class="ttc" id="astruct_vma_pool_create_info_html_ae41142f2834fcdc82baa4883c187b75c"><div class="ttname"><a href="struct_vma_pool_create_info.html#ae41142f2834fcdc82baa4883c187b75c">VmaPoolCreateInfo::maxBlockCount</a></div><div class="ttdeci">size_t maxBlockCount</div><div class="ttdoc">Maximum number of blocks that can be allocated in this pool. Optional.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1182</div></div>
<div class="ttc" id="astruct_vma_pool_html"><div class="ttname"><a href="struct_vma_pool.html">VmaPool</a></div><div class="ttdoc">Represents custom memory pool.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a5c8770ded7c59c8caac6de0c2cb00b50"><div class="ttname"><a href="vk__mem__alloc_8h.html#a5c8770ded7c59c8caac6de0c2cb00b50">vmaCreatePool</a></div><div class="ttdeci">VkResult vmaCreatePool(VmaAllocator allocator, const VmaPoolCreateInfo *pCreateInfo, VmaPool *pPool)</div><div class="ttdoc">Allocates Vulkan device memory and creates VmaPool object.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a></div><div class="ttdeci">VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)</div></div>
@ -137,8 +137,8 @@ Choosing memory type index</h1>
<div class="line"><a class="code hl_struct" href="struct_vma_pool_create_info.html">VmaPoolCreateInfo</a> poolCreateInfo = {};</div>
<div class="line">poolCreateInfo.<a class="code hl_variable" href="struct_vma_pool_create_info.html#a596fa76b685d3f1f688f84a709a5b319">memoryTypeIndex</a> = memTypeIndex;</div>
<div class="line"><span class="comment">// ...</span></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:995</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:829</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:996</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:830</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ae790ab9ffaf7667fb8f62523e6897888"><div class="ttname"><a href="vk__mem__alloc_8h.html#ae790ab9ffaf7667fb8f62523e6897888">vmaFindMemoryTypeIndexForBufferInfo</a></div><div class="ttdeci">VkResult vmaFindMemoryTypeIndexForBufferInfo(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, uint32_t *pMemoryTypeIndex)</div><div class="ttdoc">Helps to find memoryTypeIndex, given VkBufferCreateInfo and VmaAllocationCreateInfo.</div></div>
</div><!-- fragment --><p >When creating buffers/images allocated in that pool, provide following parameters:</p>
<ul>
@ -151,7 +151,7 @@ Linear allocation algorithm</h1>
<p ><img src="../gfx/Linear_allocator_1_algo_default.png" alt="Default allocation algorithm" class="inline"/></p>
<p >Sometimes there is a need to use simpler, linear allocation algorithm. You can create custom pool that uses such algorithm by adding flag <a class="el" href="vk__mem__alloc_8h.html#a9a7c45f9c863695d98c83fa5ac940fe7a13c8a444197c67866be9cb05599fc726" title="Enables alternative, linear allocation algorithm in this pool.">VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT</a> to <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446" title="Use combination of VmaPoolCreateFlagBits.">VmaPoolCreateInfo::flags</a> while creating <a class="el" href="struct_vma_pool.html" title="Represents custom memory pool.">VmaPool</a> object. Then an alternative metadata management is used. It always creates new allocations after last one and doesn't reuse free regions after allocations freed in the middle. It results in better allocation performance and less memory consumed by metadata.</p>
<p ><img src="../gfx/Linear_allocator_2_algo_linear.png" alt="Linear allocation algorithm" class="inline"/></p>
<p >With this one flag, you can create a custom pool that can be used in many ways: free-at-once, stack, double stack, and ring buffer. See below for details.</p>
<p >With this one flag, you can create a custom pool that can be used in many ways: free-at-once, stack, double stack, and ring buffer. See below for details. You don't need to specify explicitly which of these options you are going to use - it is detected automatically.</p>
<h2><a class="anchor" id="linear_algorithm_free_at_once"></a>
Free-at-once</h2>
<p >In a pool that uses linear algorithm, you still need to free all the allocations individually, e.g. by using <a class="el" href="vk__mem__alloc_8h.html#a5fea5518972ae9094b1526cbcb19b05f" title="Frees memory previously allocated using vmaAllocateMemory(), vmaAllocateMemoryForBuffer(),...">vmaFreeMemory()</a> or <a class="el" href="vk__mem__alloc_8h.html#a0d9f4e4ba5bf9aab1f1c746387753d77" title="Destroys Vulkan buffer and frees allocated memory.">vmaDestroyBuffer()</a>. You can free them in any order. New allocations are always made after last one - free space in the middle is not reused. However, when you release all the allocation and the pool becomes empty, allocation starts from the beginning again. This way you can use linear algorithm to speed up creation of allocations that you are going to release all at once.</p>
@ -169,7 +169,7 @@ Double stack</h2>
<li>First, default one, growing up from offset 0.</li>
<li>Second, "upper" one, growing down from the end towards lower offsets.</li>
</ul>
<p >To make allocation from upper stack, add flag <a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a42ba3a2d2c7117953210b7c3ef8da0df">VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT</a> to <a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b" title="Use VmaAllocationCreateFlagBits enum.">VmaAllocationCreateInfo::flags</a>.</p>
<p >To make allocation from the upper stack, add flag <a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a42ba3a2d2c7117953210b7c3ef8da0df">VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT</a> to <a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b" title="Use VmaAllocationCreateFlagBits enum.">VmaAllocationCreateInfo::flags</a>.</p>
<p ><img src="../gfx/Linear_allocator_7_double_stack.png" alt="Double stack" class="inline"/></p>
<p >Double stack is available only in pools with one memory block - <a class="el" href="struct_vma_pool_create_info.html#ae41142f2834fcdc82baa4883c187b75c" title="Maximum number of blocks that can be allocated in this pool. Optional.">VmaPoolCreateInfo::maxBlockCount</a> must be 1. Otherwise behavior is undefined.</p>
<p >When the two stacks' ends meet so there is not enough space between them for a new allocation, such allocation fails with usual <code>VK_ERROR_OUT_OF_DEVICE_MEMORY</code> error.</p>
@ -182,10 +182,9 @@ Ring buffer</h2>
<p >Ring buffer is available only in pools with one memory block - <a class="el" href="struct_vma_pool_create_info.html#ae41142f2834fcdc82baa4883c187b75c" title="Maximum number of blocks that can be allocated in this pool. Optional.">VmaPoolCreateInfo::maxBlockCount</a> must be 1. Otherwise behavior is undefined.</p>
<h1><a class="anchor" id="buddy_algorithm"></a>
Buddy allocation algorithm</h1>
<p >There is another allocation algorithm that can be used with custom pools, called "buddy". Its internal data structure is based on a tree of blocks, each having size that is a power of two and a half of its parent's size. When you want to allocate memory of certain size, a free node in the tree is located. If it is too large, it is recursively split into two halves (called "buddies"). However, if requested allocation size is not a power of two, the size of a tree node is aligned up to the nearest power of two and the remaining space is wasted. When two buddy nodes become free, they are merged back into one larger node.</p>
<p >There is another allocation algorithm that can be used with custom pools, called "buddy". Its internal data structure is based on a binary tree of blocks, each having size that is a power of two and a half of its parent's size. When you want to allocate memory of certain size, a free node in the tree is located. If it is too large, it is recursively split into two halves (called "buddies"). However, if requested allocation size is not a power of two, the size of the allocation is aligned up to the nearest power of two and the remaining space is wasted. When two buddy nodes become free, they are merged back into one larger node.</p>
<p ><img src="../gfx/Buddy_allocator.png" alt="Buddy allocator" class="inline"/></p>
<p >The advantage of buddy allocation algorithm over default algorithm is faster allocation and deallocation, as well as smaller external fragmentation. The disadvantage is more wasted space (internal fragmentation).</p>
<p >For more information, please search the Internet for "Buddy memory allocation" - sources that describe this concept in general.</p>
<p >The advantage of buddy allocation algorithm over default algorithm is faster allocation and deallocation, as well as smaller external fragmentation. The disadvantage is more wasted space (internal fragmentation). For more information, please search the Internet for "Buddy memory allocation" - sources that describe this concept in general.</p>
<p >To use buddy allocation algorithm with a custom pool, add flag <a class="el" href="vk__mem__alloc_8h.html#a9a7c45f9c863695d98c83fa5ac940fe7a97a0dc38e5161b780594d998d313d35e" title="Enables alternative, buddy allocation algorithm in this pool.">VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT</a> to <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446" title="Use combination of VmaPoolCreateFlagBits.">VmaPoolCreateInfo::flags</a> while creating <a class="el" href="struct_vma_pool.html" title="Represents custom memory pool.">VmaPool</a> object.</p>
<p >Several limitations apply to pools that use buddy algorithm:</p>
<ul>

20
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@ -129,15 +129,15 @@ Defragmenting CPU 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_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:1354</div></div>
<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:1353</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:1760</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:1766</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:1781</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:1810</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:1775</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:1805</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:1759</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:1765</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:1780</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:1809</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:1774</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:1804</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:1820</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:1815</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:1829</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:1819</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:1814</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:1828</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>

9
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@ -65,6 +65,7 @@ $(function() {
<div class="textblock">Here is a list of all class members with links to the classes they belong to:</div>
<h3><a id="index_a" name="index_a"></a>- a -</h3><ul>
<li>alignment&#160;:&#160;<a class="el" href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">VmaVirtualAllocationCreateInfo</a></li>
<li>allocation&#160;:&#160;<a class="el" href="struct_vma_defragmentation_pass_move_info.html#ae885c861c2dd8d622e6c19e281d035cc">VmaDefragmentationPassMoveInfo</a></li>
<li>allocationBytes&#160;:&#160;<a class="el" href="struct_vma_budget.html#a7e2a6583ebd63e194951c542563804d8">VmaBudget</a></li>
<li>allocationCount&#160;:&#160;<a class="el" href="struct_vma_defragmentation_info2.html#a3cf86ab32c1da779b4923d301a3056ba">VmaDefragmentationInfo2</a>, <a class="el" href="struct_vma_pool_stats.html#ad1924eb54fffa45e9e0e65670c8fe5eb">VmaPoolStats</a>, <a class="el" href="struct_vma_stat_info.html#a537741e4d5cdddc1c0ab95ec650afaff">VmaStatInfo</a></li>
@ -98,7 +99,7 @@ $(function() {
<h3><a id="index_f" name="index_f"></a>- f -</h3><ul>
<li>flags&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_allocator_create_info.html#a392ea2ecbaff93f91a7c49f735ad4346">VmaAllocatorCreateInfo</a>, <a class="el" href="struct_vma_defragmentation_info2.html#a53e844ee5633e229cf6daf14b2d9fff9">VmaDefragmentationInfo2</a>, <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446">VmaPoolCreateInfo</a>, <a class="el" href="struct_vma_record_settings.html#ad8fdcc92119ae7a8c08c1a564c01d63a">VmaRecordSettings</a></li>
<li>flags&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_allocator_create_info.html#a392ea2ecbaff93f91a7c49f735ad4346">VmaAllocatorCreateInfo</a>, <a class="el" href="struct_vma_defragmentation_info2.html#a53e844ee5633e229cf6daf14b2d9fff9">VmaDefragmentationInfo2</a>, <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446">VmaPoolCreateInfo</a>, <a class="el" href="struct_vma_record_settings.html#ad8fdcc92119ae7a8c08c1a564c01d63a">VmaRecordSettings</a>, <a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4">VmaVirtualAllocationCreateInfo</a>, <a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09">VmaVirtualBlockCreateInfo</a></li>
<li>frameInUseCount&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a21ea188dd212b8171cb9ecbed4a2a3a7">VmaAllocatorCreateInfo</a>, <a class="el" href="struct_vma_pool_create_info.html#a9437e43ffbb644dbbf7fc4e50cfad6aa">VmaPoolCreateInfo</a></li>
</ul>
@ -133,7 +134,7 @@ $(function() {
<h3><a id="index_p" name="index_p"></a>- p -</h3><ul>
<li>pAllocationCallbacks&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a6e409087e3be55400d0e4ccbe43c608d">VmaAllocatorCreateInfo</a></li>
<li>pAllocationCallbacks&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a6e409087e3be55400d0e4ccbe43c608d">VmaAllocatorCreateInfo</a>, <a class="el" href="struct_vma_virtual_block_create_info.html#a290283bf915c257d24584872d793ad30">VmaVirtualBlockCreateInfo</a></li>
<li>pAllocations&#160;:&#160;<a class="el" href="struct_vma_defragmentation_info2.html#ab6d288f29d028156cf73542d630a2e32">VmaDefragmentationInfo2</a></li>
<li>pAllocationsChanged&#160;:&#160;<a class="el" href="struct_vma_defragmentation_info2.html#a76d51a644dc7f5405d0cdd0025ecd0cc">VmaDefragmentationInfo2</a></li>
<li>pDeviceMemoryCallbacks&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#af1380969b5e1ea4c3184a877892d260e">VmaAllocatorCreateInfo</a></li>
@ -153,7 +154,7 @@ $(function() {
<li>preferredLargeHeapBlockSize&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a8e4714298e3121cdd8b214a1ae7a637a">VmaAllocatorCreateInfo</a></li>
<li>priority&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#a983d39e1a2e63649d78a960aa2fdd0f7">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_pool_create_info.html#a16e686c688f6725f119ebf6e24ab5274">VmaPoolCreateInfo</a></li>
<li>pTypeExternalMemoryHandleTypes&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#ae8f0db05e5cb4c43d7713bf4a49a736b">VmaAllocatorCreateInfo</a></li>
<li>pUserData&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13">VmaAllocationInfo</a>, <a class="el" href="struct_vma_device_memory_callbacks.html#a24052de0937ddd54015a2df0363903c6">VmaDeviceMemoryCallbacks</a></li>
<li>pUserData&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13">VmaAllocationInfo</a>, <a class="el" href="struct_vma_device_memory_callbacks.html#a24052de0937ddd54015a2df0363903c6">VmaDeviceMemoryCallbacks</a>, <a class="el" href="struct_vma_virtual_allocation_create_info.html#a015f8544ca51a7350f7434d42d0587bb">VmaVirtualAllocationCreateInfo</a>, <a class="el" href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">VmaVirtualAllocationInfo</a></li>
<li>pVulkanFunctions&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a3dc197be3227da7338b1643f70db36bd">VmaAllocatorCreateInfo</a></li>
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@ -164,7 +165,7 @@ $(function() {
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<li>size&#160;:&#160;<a class="el" href="struct_vma_allocation_info.html#aac76d113a6a5ccbb09fea00fb25fd18f">VmaAllocationInfo</a>, <a class="el" href="struct_vma_pool_stats.html#a326807b2de2b0931cee4ed9a5f2e420c">VmaPoolStats</a></li>
<li>size&#160;:&#160;<a class="el" href="struct_vma_allocation_info.html#aac76d113a6a5ccbb09fea00fb25fd18f">VmaAllocationInfo</a>, <a class="el" href="struct_vma_pool_stats.html#a326807b2de2b0931cee4ed9a5f2e420c">VmaPoolStats</a>, <a class="el" href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">VmaVirtualAllocationCreateInfo</a>, <a class="el" href="struct_vma_virtual_allocation_info.html#afb6d6bd0a6813869ea0842048d40aa2b">VmaVirtualAllocationInfo</a>, <a class="el" href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9">VmaVirtualBlockCreateInfo</a></li>
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9
docs/html/functions_vars.html
View File

@ -65,6 +65,7 @@ $(function() {
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<h3><a id="index_a" name="index_a"></a>- a -</h3><ul>
<li>alignment&#160;:&#160;<a class="el" href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">VmaVirtualAllocationCreateInfo</a></li>
<li>allocation&#160;:&#160;<a class="el" href="struct_vma_defragmentation_pass_move_info.html#ae885c861c2dd8d622e6c19e281d035cc">VmaDefragmentationPassMoveInfo</a></li>
<li>allocationBytes&#160;:&#160;<a class="el" href="struct_vma_budget.html#a7e2a6583ebd63e194951c542563804d8">VmaBudget</a></li>
<li>allocationCount&#160;:&#160;<a class="el" href="struct_vma_defragmentation_info2.html#a3cf86ab32c1da779b4923d301a3056ba">VmaDefragmentationInfo2</a>, <a class="el" href="struct_vma_pool_stats.html#ad1924eb54fffa45e9e0e65670c8fe5eb">VmaPoolStats</a>, <a class="el" href="struct_vma_stat_info.html#a537741e4d5cdddc1c0ab95ec650afaff">VmaStatInfo</a></li>
@ -98,7 +99,7 @@ $(function() {
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<li>flags&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_allocator_create_info.html#a392ea2ecbaff93f91a7c49f735ad4346">VmaAllocatorCreateInfo</a>, <a class="el" href="struct_vma_defragmentation_info2.html#a53e844ee5633e229cf6daf14b2d9fff9">VmaDefragmentationInfo2</a>, <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446">VmaPoolCreateInfo</a>, <a class="el" href="struct_vma_record_settings.html#ad8fdcc92119ae7a8c08c1a564c01d63a">VmaRecordSettings</a></li>
<li>flags&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_allocator_create_info.html#a392ea2ecbaff93f91a7c49f735ad4346">VmaAllocatorCreateInfo</a>, <a class="el" href="struct_vma_defragmentation_info2.html#a53e844ee5633e229cf6daf14b2d9fff9">VmaDefragmentationInfo2</a>, <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446">VmaPoolCreateInfo</a>, <a class="el" href="struct_vma_record_settings.html#ad8fdcc92119ae7a8c08c1a564c01d63a">VmaRecordSettings</a>, <a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4">VmaVirtualAllocationCreateInfo</a>, <a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09">VmaVirtualBlockCreateInfo</a></li>
<li>frameInUseCount&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a21ea188dd212b8171cb9ecbed4a2a3a7">VmaAllocatorCreateInfo</a>, <a class="el" href="struct_vma_pool_create_info.html#a9437e43ffbb644dbbf7fc4e50cfad6aa">VmaPoolCreateInfo</a></li>
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<li>pAllocationCallbacks&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a6e409087e3be55400d0e4ccbe43c608d">VmaAllocatorCreateInfo</a></li>
<li>pAllocationCallbacks&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a6e409087e3be55400d0e4ccbe43c608d">VmaAllocatorCreateInfo</a>, <a class="el" href="struct_vma_virtual_block_create_info.html#a290283bf915c257d24584872d793ad30">VmaVirtualBlockCreateInfo</a></li>
<li>pAllocations&#160;:&#160;<a class="el" href="struct_vma_defragmentation_info2.html#ab6d288f29d028156cf73542d630a2e32">VmaDefragmentationInfo2</a></li>
<li>pAllocationsChanged&#160;:&#160;<a class="el" href="struct_vma_defragmentation_info2.html#a76d51a644dc7f5405d0cdd0025ecd0cc">VmaDefragmentationInfo2</a></li>
<li>pDeviceMemoryCallbacks&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#af1380969b5e1ea4c3184a877892d260e">VmaAllocatorCreateInfo</a></li>
@ -153,7 +154,7 @@ $(function() {
<li>preferredLargeHeapBlockSize&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a8e4714298e3121cdd8b214a1ae7a637a">VmaAllocatorCreateInfo</a></li>
<li>priority&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#a983d39e1a2e63649d78a960aa2fdd0f7">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_pool_create_info.html#a16e686c688f6725f119ebf6e24ab5274">VmaPoolCreateInfo</a></li>
<li>pTypeExternalMemoryHandleTypes&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#ae8f0db05e5cb4c43d7713bf4a49a736b">VmaAllocatorCreateInfo</a></li>
<li>pUserData&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13">VmaAllocationInfo</a>, <a class="el" href="struct_vma_device_memory_callbacks.html#a24052de0937ddd54015a2df0363903c6">VmaDeviceMemoryCallbacks</a></li>
<li>pUserData&#160;:&#160;<a class="el" href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19">VmaAllocationCreateInfo</a>, <a class="el" href="struct_vma_allocation_info.html#adc507656149c04de7ed95d0042ba2a13">VmaAllocationInfo</a>, <a class="el" href="struct_vma_device_memory_callbacks.html#a24052de0937ddd54015a2df0363903c6">VmaDeviceMemoryCallbacks</a>, <a class="el" href="struct_vma_virtual_allocation_create_info.html#a015f8544ca51a7350f7434d42d0587bb">VmaVirtualAllocationCreateInfo</a>, <a class="el" href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">VmaVirtualAllocationInfo</a></li>
<li>pVulkanFunctions&#160;:&#160;<a class="el" href="struct_vma_allocator_create_info.html#a3dc197be3227da7338b1643f70db36bd">VmaAllocatorCreateInfo</a></li>
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<li>size&#160;:&#160;<a class="el" href="struct_vma_allocation_info.html#aac76d113a6a5ccbb09fea00fb25fd18f">VmaAllocationInfo</a>, <a class="el" href="struct_vma_pool_stats.html#a326807b2de2b0931cee4ed9a5f2e420c">VmaPoolStats</a></li>
<li>size&#160;:&#160;<a class="el" href="struct_vma_allocation_info.html#aac76d113a6a5ccbb09fea00fb25fd18f">VmaAllocationInfo</a>, <a class="el" href="struct_vma_pool_stats.html#a326807b2de2b0931cee4ed9a5f2e420c">VmaPoolStats</a>, <a class="el" href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">VmaVirtualAllocationCreateInfo</a>, <a class="el" href="struct_vma_virtual_allocation_info.html#afb6d6bd0a6813869ea0842048d40aa2b">VmaVirtualAllocationInfo</a>, <a class="el" href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9">VmaVirtualBlockCreateInfo</a></li>
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26
docs/html/globals.html
View File

@ -71,6 +71,7 @@ $(function() {
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<li>VK_DEFINE_HANDLE()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a916e5291bb205e995aa87aee1d6dbbfc">vk_mem_alloc.h</a></li>
<li>VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a5f436af6c8fe8540573a6d22627a6fd2">vk_mem_alloc.h</a></li>
<li>VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a68686d0ce9beb0d4d1b9f2b8b1389a7e">vk_mem_alloc.h</a></li>
<li>VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a3fc311d855c2ff53f1090ef5c722b38f">vk_mem_alloc.h</a></li>
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<li>VMA_RECORD_FLUSH_AFTER_CALL_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a4dd2c44642312a147a4e93373a6e64d2a8e7ab322e8732654be627c4ea8f36cc7">vk_mem_alloc.h</a></li>
<li>VMA_RECORDING_ENABLED&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a1f0c126759fc96ccb6e2d23c101d770c">vk_mem_alloc.h</a></li>
<li>VMA_STATS_STRING_ENABLED&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae25f0d55fd91cb166f002b63244800e1">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6ac1163c03ea837fa663462dc286d6a1a9">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6ac5b5e45c335368d18df59c9f27df17e3">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_FRAGMENTATION_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6a9aa0c32667ba2deaa9cdeac6149ec47a">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6ae2a9591a62b5e3b1bdcbc81c6188a1bf">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6a562d10a46012719d33167d3dc5dbbf9b">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6a9524a329a55b5ec390d57d90b67ad78e">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaaf9487467136e1a9e371894dc3a7c4844">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaa923116612509e26bf84982b9baf25c63">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaa5fc0d333c3d5687a8bbf57df9b377a87">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaae6423e2fa2f3c9211b21c819e3f10f96">vk_mem_alloc.h</a></li>
<li>VMA_VULKAN_VERSION&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a1a2407c283893638cc039bb31fcd74b6">vk_mem_alloc.h</a></li>
<li>vmaAllocateMemory()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#abf28077dbf82d0908b8acbe8ee8dd9b8">vk_mem_alloc.h</a></li>
<li>vmaAllocateMemoryForBuffer()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a7fdf64415b6c3d83c454f28d2c53df7b">vk_mem_alloc.h</a></li>
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<li>VmaBudget&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aa078667e71b1ef24e87a6a30d128381d">vk_mem_alloc.h</a></li>
<li>vmaBuildStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0">vk_mem_alloc.h</a></li>
<li>vmaBuildVirtualBlockStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a52d810e1222c592e5d80556ad005f1e6">vk_mem_alloc.h</a></li>
<li>vmaCalculateStats()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a333b61c1788cb23559177531e6a93ca3">vk_mem_alloc.h</a></li>
<li>vmaCalculateVirtualBlockStats()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a">vk_mem_alloc.h</a></li>
<li>vmaCheckCorruption()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a49329a7f030dafcf82f7b73334c22e98">vk_mem_alloc.h</a></li>
<li>vmaCheckPoolCorruption()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ad535935619c7a549bf837e1bb0068f89">vk_mem_alloc.h</a></li>
<li>vmaClearVirtualBlock()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a5eda6f55919fb05bd2f56a112590c571">vk_mem_alloc.h</a></li>
<li>vmaCreateAllocator()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a200692051ddb34240248234f5f4c17bb">vk_mem_alloc.h</a></li>
<li>vmaCreateBuffer()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vk_mem_alloc.h</a></li>
<li>vmaCreateBufferWithAlignment()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aa06a690013a0d01e60894ac378083834">vk_mem_alloc.h</a></li>
<li>vmaCreateImage()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a02a94f25679275851a53e82eacbcfc73">vk_mem_alloc.h</a></li>
<li>vmaCreateLostAllocation()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae5c9657d9e94756269145b01c05d16f1">vk_mem_alloc.h</a></li>
<li>vmaCreatePool()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a5c8770ded7c59c8caac6de0c2cb00b50">vk_mem_alloc.h</a></li>
<li>vmaCreateVirtualBlock()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b">vk_mem_alloc.h</a></li>
<li>vmaDefragment()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a9f0f8f56db5f7f57fe4454f465142dac">vk_mem_alloc.h</a></li>
<li>vmaDefragmentationBegin()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a36ba776fd7fd5cb1e9359fdc0d8e6e8a">vk_mem_alloc.h</a></li>
<li>vmaDefragmentationEnd()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a8774e20e91e245aae959ba63efa15dd2">vk_mem_alloc.h</a></li>
@ -163,6 +178,7 @@ $(function() {
<li>vmaDestroyBuffer()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a0d9f4e4ba5bf9aab1f1c746387753d77">vk_mem_alloc.h</a></li>
<li>vmaDestroyImage()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae50d2cb3b4a3bfd4dd40987234e50e7e">vk_mem_alloc.h</a></li>
<li>vmaDestroyPool()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a5485779c8f1948238fc4e92232fa65e1">vk_mem_alloc.h</a></li>
<li>vmaDestroyVirtualBlock()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a3795f7783ae2c182cede067d656f66a5">vk_mem_alloc.h</a></li>
<li>VmaDeviceMemoryCallbacks&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a77692d3c8770ea8882d573206bd27b2b">vk_mem_alloc.h</a></li>
<li>vmaEndDefragmentationPass()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a1b9ffa538bed905af55c747cc48963bd">vk_mem_alloc.h</a></li>
<li>vmaFindMemoryTypeIndex()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aef15a94b58fbcb0fe706d5720e84a74a">vk_mem_alloc.h</a></li>
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<li>vmaFreeMemoryPages()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a834b1e4aef395c0a1d56a28e69a4a17e">vk_mem_alloc.h</a></li>
<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>vmaGetAllocatorInfo()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#afa02231a791b37255720d566a52683e7">vk_mem_alloc.h</a></li>
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<li>vmaGetPoolName()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#af09b4e4eafdbee812e8d73ddf960f030">vk_mem_alloc.h</a></li>
<li>vmaGetPoolStats()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae8bf76997b234ef68aad922616df4153">vk_mem_alloc.h</a></li>
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<li>vmaInvalidateAllocation()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aaa8412919139ef413a4215ac6a290fae">vk_mem_alloc.h</a></li>
<li>vmaInvalidateAllocations()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ab25b558d75f7378ec944a1522fdcc3c5">vk_mem_alloc.h</a></li>
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<li>vmaMapMemory()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069">vk_mem_alloc.h</a></li>
<li>VmaMemoryUsage&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cc">vk_mem_alloc.h</a></li>
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<li>VmaStatInfo&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aec5b57e29c97b5d69c6d5654d60df878">vk_mem_alloc.h</a></li>
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<li>vmaVirtualAllocate()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2">vk_mem_alloc.h</a></li>
<li>VmaVirtualAllocationCreateFlagBits&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6">vk_mem_alloc.h</a></li>
<li>VmaVirtualAllocationCreateFlags&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae96ffc099bf898257fb19e9410ed08a7">vk_mem_alloc.h</a></li>
<li>VmaVirtualBlockCreateFlagBits&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">vk_mem_alloc.h</a></li>
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<li>vmaVirtualFree()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639">vk_mem_alloc.h</a></li>
<li>VmaVulkanFunctions&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#abb0a8e3b5040d847571cca6c7f9a8074">vk_mem_alloc.h</a></li>
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@ -69,6 +69,8 @@ $(function() {
<li>VmaMemoryUsage&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cc">vk_mem_alloc.h</a></li>
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@ -107,6 +107,16 @@ $(function() {
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<li>VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaa923116612509e26bf84982b9baf25c63">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaa5fc0d333c3d5687a8bbf57df9b377a87">vk_mem_alloc.h</a></li>
<li>VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaae6423e2fa2f3c9211b21c819e3f10f96">vk_mem_alloc.h</a></li>
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@ -65,6 +65,7 @@ $(function() {
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<li>VK_DEFINE_HANDLE()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a916e5291bb205e995aa87aee1d6dbbfc">vk_mem_alloc.h</a></li>
<li>vmaAllocateMemory()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#abf28077dbf82d0908b8acbe8ee8dd9b8">vk_mem_alloc.h</a></li>
<li>vmaAllocateMemoryForBuffer()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a7fdf64415b6c3d83c454f28d2c53df7b">vk_mem_alloc.h</a></li>
<li>vmaAllocateMemoryForImage()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a0faa3f9e5fb233d29d1e00390650febb">vk_mem_alloc.h</a></li>
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<li>vmaBindImageMemory()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a3d3ca45799923aa5d138e9e5f9eb2da5">vk_mem_alloc.h</a></li>
<li>vmaBindImageMemory2()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aa8251ee81b0045a443e35b8e8aa021bc">vk_mem_alloc.h</a></li>
<li>vmaBuildStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0">vk_mem_alloc.h</a></li>
<li>vmaBuildVirtualBlockStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a52d810e1222c592e5d80556ad005f1e6">vk_mem_alloc.h</a></li>
<li>vmaCalculateStats()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a333b61c1788cb23559177531e6a93ca3">vk_mem_alloc.h</a></li>
<li>vmaCalculateVirtualBlockStats()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a">vk_mem_alloc.h</a></li>
<li>vmaCheckCorruption()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a49329a7f030dafcf82f7b73334c22e98">vk_mem_alloc.h</a></li>
<li>vmaCheckPoolCorruption()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ad535935619c7a549bf837e1bb0068f89">vk_mem_alloc.h</a></li>
<li>vmaClearVirtualBlock()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a5eda6f55919fb05bd2f56a112590c571">vk_mem_alloc.h</a></li>
<li>vmaCreateAllocator()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a200692051ddb34240248234f5f4c17bb">vk_mem_alloc.h</a></li>
<li>vmaCreateBuffer()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vk_mem_alloc.h</a></li>
<li>vmaCreateBufferWithAlignment()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aa06a690013a0d01e60894ac378083834">vk_mem_alloc.h</a></li>
<li>vmaCreateImage()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a02a94f25679275851a53e82eacbcfc73">vk_mem_alloc.h</a></li>
<li>vmaCreateLostAllocation()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae5c9657d9e94756269145b01c05d16f1">vk_mem_alloc.h</a></li>
<li>vmaCreatePool()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a5c8770ded7c59c8caac6de0c2cb00b50">vk_mem_alloc.h</a></li>
<li>vmaCreateVirtualBlock()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b">vk_mem_alloc.h</a></li>
<li>vmaDefragment()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a9f0f8f56db5f7f57fe4454f465142dac">vk_mem_alloc.h</a></li>
<li>vmaDefragmentationBegin()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a36ba776fd7fd5cb1e9359fdc0d8e6e8a">vk_mem_alloc.h</a></li>
<li>vmaDefragmentationEnd()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a8774e20e91e245aae959ba63efa15dd2">vk_mem_alloc.h</a></li>
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<li>vmaDestroyImage()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae50d2cb3b4a3bfd4dd40987234e50e7e">vk_mem_alloc.h</a></li>
<li>vmaDestroyPool()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a5485779c8f1948238fc4e92232fa65e1">vk_mem_alloc.h</a></li>
<li>vmaDestroyVirtualBlock()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a3795f7783ae2c182cede067d656f66a5">vk_mem_alloc.h</a></li>
<li>vmaEndDefragmentationPass()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a1b9ffa538bed905af55c747cc48963bd">vk_mem_alloc.h</a></li>
<li>vmaFindMemoryTypeIndex()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aef15a94b58fbcb0fe706d5720e84a74a">vk_mem_alloc.h</a></li>
<li>vmaFindMemoryTypeIndexForBufferInfo()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae790ab9ffaf7667fb8f62523e6897888">vk_mem_alloc.h</a></li>
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<li>vmaFreeStatsString()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a3104eb30d8122c84dd8541063f145288">vk_mem_alloc.h</a></li>
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<li>vmaGetAllocationInfo()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a86dd08aba8633bfa4ad0df2e76481d8b">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>
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<li>vmaGetPoolName()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#af09b4e4eafdbee812e8d73ddf960f030">vk_mem_alloc.h</a></li>
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<li>vmaInvalidateAllocation()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aaa8412919139ef413a4215ac6a290fae">vk_mem_alloc.h</a></li>
<li>vmaInvalidateAllocations()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ab25b558d75f7378ec944a1522fdcc3c5">vk_mem_alloc.h</a></li>
<li>vmaIsVirtualBlockEmpty()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#acd53b5b1d23f8fcbad692ccfdc1811f1">vk_mem_alloc.h</a></li>
<li>vmaMakePoolAllocationsLost()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a736bd6cbda886f36c891727e73bd4024">vk_mem_alloc.h</a></li>
<li>vmaMapMemory()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069">vk_mem_alloc.h</a></li>
<li>vmaSetAllocationUserData()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#af9147d31ffc11d62fc187bde283ed14f">vk_mem_alloc.h</a></li>
<li>vmaSetCurrentFrameIndex()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ade56bf8dc9f5a5eaddf5f119ed525236">vk_mem_alloc.h</a></li>
<li>vmaSetPoolName()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#adbae3a0b4ab078024462fc85c37f3b58">vk_mem_alloc.h</a></li>
<li>vmaSetVirtualAllocationUserData()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9">vk_mem_alloc.h</a></li>
<li>vmaTouchAllocation()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a43d8ba9673c846f049089a5029d5c73a">vk_mem_alloc.h</a></li>
<li>vmaUnmapMemory()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a9bc268595cb33f6ec4d519cfce81ff45">vk_mem_alloc.h</a></li>
<li>vmaVirtualAllocate()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2">vk_mem_alloc.h</a></li>
<li>vmaVirtualFree()&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639">vk_mem_alloc.h</a></li>
</ul>
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@ -62,9 +62,15 @@ $(function() {
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<li>VmaAllocationCreateFlags&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a5225e5e11f8376f6a31a1791f3d6e817">vk_mem_alloc.h</a></li>
<li>VmaAllocationCreateInfo&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a3bf110892ea2fb4649fedb68488d026a">vk_mem_alloc.h</a></li>
@ -92,6 +98,10 @@ $(function() {
<li>VmaRecordSettings&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a16e21c877101493fce582664cd8754fc">vk_mem_alloc.h</a></li>
<li>VmaStatInfo&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#aec5b57e29c97b5d69c6d5654d60df878">vk_mem_alloc.h</a></li>
<li>VmaStats&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a21813b2efdf3836767a9058cd8a94034">vk_mem_alloc.h</a></li>
<li>VmaVirtualAllocationCreateFlagBits&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a936815e64946a6b6d812d08d10184c23">vk_mem_alloc.h</a></li>
<li>VmaVirtualAllocationCreateFlags&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#ae96ffc099bf898257fb19e9410ed08a7">vk_mem_alloc.h</a></li>
<li>VmaVirtualBlockCreateFlagBits&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a0860ba1c0a67178fae4aecb63a78573e">vk_mem_alloc.h</a></li>
<li>VmaVirtualBlockCreateFlags&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#a4e49c2f0ab7f6b4868833e5bac78d91e">vk_mem_alloc.h</a></li>
<li>VmaVulkanFunctions&#160;:&#160;<a class="el" href="vk__mem__alloc_8h.html#abb0a8e3b5040d847571cca6c7f9a8074">vk_mem_alloc.h</a></li>
</ul>
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docs/html/index.html
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@ -130,6 +130,7 @@ Table of contents</h1>
<li><a class="el" href="allocation_annotation.html#allocation_names">Allocation names</a></li>
</ul>
</li>
<li><a class="el" href="virtual_allocator.html">Virtual allocator</a></li>
<li><a class="el" href="debugging_memory_usage.html">Debugging incorrect memory usage</a><ul>
<li><a class="el" href="debugging_memory_usage.html#debugging_memory_usage_initialization">Memory initialization</a></li>
<li><a class="el" href="debugging_memory_usage.html#debugging_memory_usage_margins">Margins</a></li>

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@ -117,21 +117,21 @@ $(function() {
<div class="line"> </div>
<div class="line"> <a class="code hl_function" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufCreateInfo, &amp;allocCreateInfo, &amp;m_Buf, &amp;m_Alloc, <span class="keyword">nullptr</span>);</div>
<div class="line">}</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:987</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:995</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_add09658ac14fe290ace25470ddd6d41b"><div class="ttname"><a href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo::flags</a></div><div class="ttdeci">VmaAllocationCreateFlags flags</div><div class="ttdoc">Use VmaAllocationCreateFlagBits enum.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:989</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:988</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:996</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_add09658ac14fe290ace25470ddd6d41b"><div class="ttname"><a href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo::flags</a></div><div class="ttdeci">VmaAllocationCreateFlags flags</div><div class="ttdoc">Use VmaAllocationCreateFlagBits enum.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:990</div></div>
<div class="ttc" id="astruct_vma_allocation_html"><div class="ttname"><a href="struct_vma_allocation.html">VmaAllocation</a></div><div class="ttdoc">Represents single memory allocation.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a0d9f4e4ba5bf9aab1f1c746387753d77"><div class="ttname"><a href="vk__mem__alloc_8h.html#a0d9f4e4ba5bf9aab1f1c746387753d77">vmaDestroyBuffer</a></div><div class="ttdeci">void vmaDestroyBuffer(VmaAllocator allocator, VkBuffer buffer, VmaAllocation allocation)</div><div class="ttdoc">Destroys Vulkan buffer and frees allocated memory.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a43d8ba9673c846f049089a5029d5c73a"><div class="ttname"><a href="vk__mem__alloc_8h.html#a43d8ba9673c846f049089a5029d5c73a">vmaTouchAllocation</a></div><div class="ttdeci">VkBool32 vmaTouchAllocation(VmaAllocator allocator, VmaAllocation allocation)</div><div class="ttdoc">Returns VK_TRUE if allocation is not lost and atomically marks it as used in current frame.</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:829</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:830</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a></div><div class="ttdeci">VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597a5f436af6c8fe8540573a6d22627a6fd2"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a5f436af6c8fe8540573a6d22627a6fd2">VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:919</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597a68686d0ce9beb0d4d1b9f2b8b1389a7e"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a68686d0ce9beb0d4d1b9f2b8b1389a7e">VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:926</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597a5f436af6c8fe8540573a6d22627a6fd2"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a5f436af6c8fe8540573a6d22627a6fd2">VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:920</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597a68686d0ce9beb0d4d1b9f2b8b1389a7e"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a68686d0ce9beb0d4d1b9f2b8b1389a7e">VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:927</div></div>
</div><!-- fragment --><p >When using lost allocations, you may see some Vulkan validation layer warnings about overlapping regions of memory bound to different kinds of buffers and images. This is still valid as long as you implement proper handling of lost allocations (like in the example above) and don't use them.</p>
<p >You can create an allocation that is already in lost state from the beginning using function <a class="el" href="vk__mem__alloc_8h.html#ae5c9657d9e94756269145b01c05d16f1" title="Creates new allocation that is in lost state from the beginning.">vmaCreateLostAllocation()</a>. It may be useful if you need a "dummy" allocation that is not null.</p>
<p >You can call function <a class="el" href="vk__mem__alloc_8h.html#a736bd6cbda886f36c891727e73bd4024" title="Marks all allocations in given pool as lost if they are not used in current frame or VmaPoolCreateInf...">vmaMakePoolAllocationsLost()</a> to set all eligible allocations in a specified custom pool to lost state. Allocations that have been "touched" in current frame or <a class="el" href="struct_vma_pool_create_info.html#a9437e43ffbb644dbbf7fc4e50cfad6aa" title="Maximum number of additional frames that are in use at the same time as current frame.">VmaPoolCreateInfo::frameInUseCount</a> frames back cannot become lost.</p>
<p ><b>Q: Can I touch allocation that cannot become lost?</b></p>
<p >Yes, although it has no visible effect. Calls to <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> and <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> update last use frame index also for allocations that cannot become lost, but the only way to observe it is to dump internal allocator state using <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as string in JSON format.">vmaBuildStatsString()</a>. You can use this feature for debugging purposes to explicitly mark allocations that you use in current frame and then analyze JSON dump to see for how long each allocation stays unused. </p>
<p >Yes, although it has no visible effect. Calls to <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> and <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> update last use frame index also for allocations that cannot become lost, but the only way to observe it is to dump internal allocator state using <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as a null-terminated string in JSON format.">vmaBuildStatsString()</a>. You can use this feature for debugging purposes to explicitly mark allocations that you use in current frame and then analyze JSON dump to see for how long each allocation stays unused. </p>
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<!-- start footer part -->

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@ -116,14 +116,14 @@ Persistently mapped memory</h1>
<div class="line"> </div>
<div class="line"><span class="comment">// Buffer is already mapped. You can access its memory.</span></div>
<div class="line">memcpy(allocInfo.<a class="code hl_variable" href="struct_vma_allocation_info.html#a5eeffbe2d2f30f53370ff14aefbadbe2">pMappedData</a>, &amp;constantBufferData, <span class="keyword">sizeof</span>(constantBufferData));</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:987</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:995</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_add09658ac14fe290ace25470ddd6d41b"><div class="ttname"><a href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo::flags</a></div><div class="ttdeci">VmaAllocationCreateFlags flags</div><div class="ttdoc">Use VmaAllocationCreateFlagBits enum.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:989</div></div>
<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:1354</div></div>
<div class="ttc" id="astruct_vma_allocation_info_html_a5eeffbe2d2f30f53370ff14aefbadbe2"><div class="ttname"><a href="struct_vma_allocation_info.html#a5eeffbe2d2f30f53370ff14aefbadbe2">VmaAllocationInfo::pMappedData</a></div><div class="ttdeci">void * pMappedData</div><div class="ttdoc">Pointer to the beginning of this allocation as mapped data.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1398</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_aa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5"><div class="ttname"><a href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5">VMA_MEMORY_USAGE_CPU_ONLY</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_CPU_ONLY</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:839</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:988</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:996</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_add09658ac14fe290ace25470ddd6d41b"><div class="ttname"><a href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b">VmaAllocationCreateInfo::flags</a></div><div class="ttdeci">VmaAllocationCreateFlags flags</div><div class="ttdoc">Use VmaAllocationCreateFlagBits enum.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:990</div></div>
<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:1353</div></div>
<div class="ttc" id="astruct_vma_allocation_info_html_a5eeffbe2d2f30f53370ff14aefbadbe2"><div class="ttname"><a href="struct_vma_allocation_info.html#a5eeffbe2d2f30f53370ff14aefbadbe2">VmaAllocationInfo::pMappedData</a></div><div class="ttdeci">void * pMappedData</div><div class="ttdoc">Pointer to the beginning of this allocation as mapped data.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1397</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_aa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5"><div class="ttname"><a href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5">VMA_MEMORY_USAGE_CPU_ONLY</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_CPU_ONLY</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:840</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a></div><div class="ttdeci">VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f">VMA_ALLOCATION_CREATE_MAPPED_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_MAPPED_BIT</div><div class="ttdoc">Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:906</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f"><div class="ttname"><a href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f">VMA_ALLOCATION_CREATE_MAPPED_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_MAPPED_BIT</div><div class="ttdoc">Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:907</div></div>
</div><!-- fragment --><p >There are some exceptions though, when you should consider mapping memory only for a short period of time:</p>
<ul>
<li>When operating system is Windows 7 or 8.x (Windows 10 is not affected because it uses WDDM2), device is discrete AMD GPU, and memory type is the special 256 MiB pool of <code>DEVICE_LOCAL + HOST_VISIBLE</code> memory (selected when you use <a class="el" href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cca9066b52c5a7079bb74a69aaf8b92ff67">VMA_MEMORY_USAGE_CPU_TO_GPU</a>), then whenever a memory block allocated from this memory type stays mapped for the time of any call to <code>vkQueueSubmit()</code> or <code>vkQueuePresentKHR()</code>, this block is migrated by WDDM to system RAM, which degrades performance. It doesn't matter if that particular memory block is actually used by the command buffer being submitted.</li>
@ -167,10 +167,10 @@ Finding out if memory is mappable</h1>
<div class="line"> <span class="comment">// Allocation ended up in non-mappable memory.</span></div>
<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:1005</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:1359</div></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:1006</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:1358</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_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:829</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:830</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>
<div class="line">bufCreateInfo.size = <span class="keyword">sizeof</span>(ConstantBuffer);</div>

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@ -67,7 +67,9 @@ var menudata={children:[
{text:"v",url:"globals.html#index_v"}]},
{text:"Functions",url:"globals_func.html",children:[
{text:"v",url:"globals_func.html#index_v"}]},
{text:"Typedefs",url:"globals_type.html"},
{text:"Typedefs",url:"globals_type.html",children:[
{text:"p",url:"globals_type.html#index_p"},
{text:"v",url:"globals_type.html#index_v"}]},
{text:"Enumerations",url:"globals_enum.html"},
{text:"Enumerator",url:"globals_eval.html",children:[
{text:"v",url:"globals_eval.html#index_v"}]},

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@ -104,11 +104,11 @@ Initialization</h1>
<div class="line"> </div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocator.html">VmaAllocator</a> allocator;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a200692051ddb34240248234f5f4c17bb">vmaCreateAllocator</a>(&amp;allocatorInfo, &amp;allocator);</div>
<div class="ttc" id="astruct_vma_allocator_create_info_html"><div class="ttname"><a href="struct_vma_allocator_create_info.html">VmaAllocatorCreateInfo</a></div><div class="ttdoc">Description of a Allocator to be created.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:505</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_a08230f04ae6ccf8a78150a9e829a7156"><div class="ttname"><a href="struct_vma_allocator_create_info.html#a08230f04ae6ccf8a78150a9e829a7156">VmaAllocatorCreateInfo::physicalDevice</a></div><div class="ttdeci">VkPhysicalDevice physicalDevice</div><div class="ttdoc">Vulkan physical device.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:510</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_a70dd42e29b1df1d1b9b61532ae0b370b"><div class="ttname"><a href="struct_vma_allocator_create_info.html#a70dd42e29b1df1d1b9b61532ae0b370b">VmaAllocatorCreateInfo::instance</a></div><div class="ttdeci">VkInstance instance</div><div class="ttdoc">Handle to Vulkan instance object.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:579</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_ad924ddd77b04039c88d0c09b0ffcd500"><div class="ttname"><a href="struct_vma_allocator_create_info.html#ad924ddd77b04039c88d0c09b0ffcd500">VmaAllocatorCreateInfo::device</a></div><div class="ttdeci">VkDevice device</div><div class="ttdoc">Vulkan device.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:513</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_ae0ffc55139b54520a6bb704b29ffc285"><div class="ttname"><a href="struct_vma_allocator_create_info.html#ae0ffc55139b54520a6bb704b29ffc285">VmaAllocatorCreateInfo::vulkanApiVersion</a></div><div class="ttdeci">uint32_t vulkanApiVersion</div><div class="ttdoc">Optional. The highest version of Vulkan that the application is designed to use.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:588</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html"><div class="ttname"><a href="struct_vma_allocator_create_info.html">VmaAllocatorCreateInfo</a></div><div class="ttdoc">Description of a Allocator to be created.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:506</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_a08230f04ae6ccf8a78150a9e829a7156"><div class="ttname"><a href="struct_vma_allocator_create_info.html#a08230f04ae6ccf8a78150a9e829a7156">VmaAllocatorCreateInfo::physicalDevice</a></div><div class="ttdeci">VkPhysicalDevice physicalDevice</div><div class="ttdoc">Vulkan physical device.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:511</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_a70dd42e29b1df1d1b9b61532ae0b370b"><div class="ttname"><a href="struct_vma_allocator_create_info.html#a70dd42e29b1df1d1b9b61532ae0b370b">VmaAllocatorCreateInfo::instance</a></div><div class="ttdeci">VkInstance instance</div><div class="ttdoc">Handle to Vulkan instance object.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:580</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_ad924ddd77b04039c88d0c09b0ffcd500"><div class="ttname"><a href="struct_vma_allocator_create_info.html#ad924ddd77b04039c88d0c09b0ffcd500">VmaAllocatorCreateInfo::device</a></div><div class="ttdeci">VkDevice device</div><div class="ttdoc">Vulkan device.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:514</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_ae0ffc55139b54520a6bb704b29ffc285"><div class="ttname"><a href="struct_vma_allocator_create_info.html#ae0ffc55139b54520a6bb704b29ffc285">VmaAllocatorCreateInfo::vulkanApiVersion</a></div><div class="ttdeci">uint32_t vulkanApiVersion</div><div class="ttdoc">Optional. The highest version of Vulkan that the application is designed to use.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:589</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="avk__mem__alloc_8h_html_a200692051ddb34240248234f5f4c17bb"><div class="ttname"><a href="vk__mem__alloc_8h.html#a200692051ddb34240248234f5f4c17bb">vmaCreateAllocator</a></div><div class="ttdeci">VkResult vmaCreateAllocator(const VmaAllocatorCreateInfo *pCreateInfo, VmaAllocator *pAllocator)</div><div class="ttdoc">Creates Allocator object.</div></div>
</div><!-- fragment --><p >Only members <code>physicalDevice</code>, <code>device</code>, <code>instance</code> are required. However, you should inform the library which Vulkan version do you use by setting <a class="el" href="struct_vma_allocator_create_info.html#ae0ffc55139b54520a6bb704b29ffc285" title="Optional. The highest version of Vulkan that the application is designed to use.">VmaAllocatorCreateInfo::vulkanApiVersion</a> and which extensions did you enable by setting <a class="el" href="struct_vma_allocator_create_info.html#a392ea2ecbaff93f91a7c49f735ad4346" title="Flags for created allocator. Use VmaAllocatorCreateFlagBits enum.">VmaAllocatorCreateInfo::flags</a> (like <a class="el" href="vk__mem__alloc_8h.html#a4f87c9100d154a65a4ad495f7763cf7ca5f1b28b0414319d1687e1f2b30ab0089">VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT</a> for VK_KHR_buffer_device_address). Otherwise, VMA would use only features of Vulkan 1.0 core with no extensions.</p>
@ -130,10 +130,10 @@ Resource allocation</h1>
<div class="line">VkBuffer buffer;</div>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation.html">VmaAllocation</a> allocation;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufferInfo, &amp;allocInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:987</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:995</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:988</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:996</div></div>
<div class="ttc" id="astruct_vma_allocation_html"><div class="ttname"><a href="struct_vma_allocation.html">VmaAllocation</a></div><div class="ttdoc">Represents single memory allocation.</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:829</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:830</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a></div><div class="ttdeci">VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pBufferCreateInfo, const VmaAllocationCreateInfo *pAllocationCreateInfo, VkBuffer *pBuffer, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)</div></div>
</div><!-- fragment --><p >Don't forget to destroy your objects when no longer needed:</p>
<div class="fragment"><div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a0d9f4e4ba5bf9aab1f1c746387753d77">vmaDestroyBuffer</a>(allocator, buffer, allocation);</div>

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@ -137,12 +137,12 @@ $(function() {
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a5fea5518972ae9094b1526cbcb19b05f">vmaFreeMemory</a>(allocator, alloc);</div>
<div class="line">vkDestroyImage(allocator, img2, <span class="keyword">nullptr</span>);</div>
<div class="line">vkDestroyImage(allocator, img1, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:987</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:995</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html"><div class="ttname"><a href="struct_vma_allocation_create_info.html">VmaAllocationCreateInfo</a></div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:988</div></div>
<div class="ttc" id="astruct_vma_allocation_create_info_html_accb8b06b1f677d858cb9af20705fa910"><div class="ttname"><a href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910">VmaAllocationCreateInfo::usage</a></div><div class="ttdeci">VmaMemoryUsage usage</div><div class="ttdoc">Intended usage of memory.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:996</div></div>
<div class="ttc" id="astruct_vma_allocation_html"><div class="ttname"><a href="struct_vma_allocation.html">VmaAllocation</a></div><div class="ttdoc">Represents single memory allocation.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a3d3ca45799923aa5d138e9e5f9eb2da5"><div class="ttname"><a href="vk__mem__alloc_8h.html#a3d3ca45799923aa5d138e9e5f9eb2da5">vmaBindImageMemory</a></div><div class="ttdeci">VkResult vmaBindImageMemory(VmaAllocator allocator, VmaAllocation allocation, VkImage image)</div><div class="ttdoc">Binds image to allocation.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a5fea5518972ae9094b1526cbcb19b05f"><div class="ttname"><a href="vk__mem__alloc_8h.html#a5fea5518972ae9094b1526cbcb19b05f">vmaFreeMemory</a></div><div class="ttdeci">void vmaFreeMemory(VmaAllocator allocator, const VmaAllocation allocation)</div><div class="ttdoc">Frees memory previously allocated using vmaAllocateMemory(), vmaAllocateMemoryForBuffer(),...</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:829</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:830</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_abf28077dbf82d0908b8acbe8ee8dd9b8"><div class="ttname"><a href="vk__mem__alloc_8h.html#abf28077dbf82d0908b8acbe8ee8dd9b8">vmaAllocateMemory</a></div><div class="ttdeci">VkResult vmaAllocateMemory(VmaAllocator allocator, const VkMemoryRequirements *pVkMemoryRequirements, const VmaAllocationCreateInfo *pCreateInfo, VmaAllocation *pAllocation, VmaAllocationInfo *pAllocationInfo)</div><div class="ttdoc">General purpose memory allocation.</div></div>
</div><!-- fragment --><p >Remember that using resources that alias in memory requires proper synchronization. You need to issue a memory barrier to make sure commands that use <code>img1</code> and <code>img2</code> don't overlap on GPU timeline. You also need to treat a resource after aliasing as uninitialized - containing garbage data. For example, if you use <code>img1</code> and then want to use <code>img2</code>, you need to issue an image memory barrier for <code>img2</code> with <code>oldLayout</code> = <code>VK_IMAGE_LAYOUT_UNDEFINED</code>.</p>
<p >Additional considerations:</p>

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docs/html/statistics.html
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@ -77,7 +77,7 @@ Numeric statistics</h1>
<p >You can query for information about specific allocation using function <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>. It fill structure <a class="el" href="struct_vma_allocation_info.html" title="Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().">VmaAllocationInfo</a>.</p>
<h1><a class="anchor" id="statistics_json_dump"></a>
JSON dump</h1>
<p >You can dump internal state of the allocator to a string in JSON format using function <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as string in JSON format.">vmaBuildStatsString()</a>. The result is guaranteed to be correct JSON. It uses ANSI encoding. Any strings provided by user (see <a class="el" href="allocation_annotation.html#allocation_names">Allocation names</a>) are copied as-is and properly escaped for JSON, so if they use UTF-8, ISO-8859-2 or any other encoding, this JSON string can be treated as using this encoding. It must be freed using function <a class="el" href="vk__mem__alloc_8h.html#a3104eb30d8122c84dd8541063f145288">vmaFreeStatsString()</a>.</p>
<p >You can dump internal state of the allocator to a string in JSON format using function <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as a null-terminated string in JSON format.">vmaBuildStatsString()</a>. The result is guaranteed to be correct JSON. It uses ANSI encoding. Any strings provided by user (see <a class="el" href="allocation_annotation.html#allocation_names">Allocation names</a>) are copied as-is and properly escaped for JSON, so if they use UTF-8, ISO-8859-2 or any other encoding, this JSON string can be treated as using this encoding. It must be freed using function <a class="el" href="vk__mem__alloc_8h.html#a3104eb30d8122c84dd8541063f145288">vmaFreeStatsString()</a>.</p>
<p >The format of this JSON string is not part of official documentation of the library, but it will not change in backward-incompatible way without increasing library major version number and appropriate mention in changelog.</p>
<p >The JSON string contains all the data that can be obtained using <a class="el" href="vk__mem__alloc_8h.html#a333b61c1788cb23559177531e6a93ca3" title="Retrieves statistics from current state of the Allocator.">vmaCalculateStats()</a>. It can also contain detailed map of allocated memory blocks and their regions - free and occupied by allocations. This allows e.g. to visualize the memory or assess fragmentation. </p>
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<div class="headertitle"><div class="title">VmaVirtualAllocationCreateInfo Member List</div></div>
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<p>This is the complete list of members for <a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a>, including all inherited members.</p>
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<tr class="even"><td class="entry"><a class="el" href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">alignment</a></td><td class="entry"><a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></td><td class="entry"></td></tr>
<tr class="odd"><td class="entry"><a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4">flags</a></td><td class="entry"><a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></td><td class="entry"></td></tr>
<tr class="even"><td class="entry"><a class="el" href="struct_vma_virtual_allocation_create_info.html#a015f8544ca51a7350f7434d42d0587bb">pUserData</a></td><td class="entry"><a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></td><td class="entry"></td></tr>
<tr class="odd"><td class="entry"><a class="el" href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">size</a></td><td class="entry"><a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></td><td class="entry"></td></tr>
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<a href="#pub-attribs">Public Attributes</a> &#124;
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<p>Parameters of created virtual allocation to be passed to <a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2" title="Allocates new virtual allocation inside given VmaVirtualBlock.">vmaVirtualAllocate()</a>.
<a href="struct_vma_virtual_allocation_create_info.html#details">More...</a></p>
<p><code>#include &lt;vk_mem_alloc.h&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:aae08752b86817abd0d944c6025dc603e"><td class="memItemLeft" align="right" valign="top">VkDeviceSize&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">size</a></td></tr>
<tr class="memdesc:aae08752b86817abd0d944c6025dc603e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Size of the allocation. <a href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">More...</a><br /></td></tr>
<tr class="separator:aae08752b86817abd0d944c6025dc603e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9d19709872fc1904a105079e1c885821"><td class="memItemLeft" align="right" valign="top">VkDeviceSize&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">alignment</a></td></tr>
<tr class="memdesc:a9d19709872fc1904a105079e1c885821"><td class="mdescLeft">&#160;</td><td class="mdescRight">Required alignment of the allocation. Optional. <a href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">More...</a><br /></td></tr>
<tr class="separator:a9d19709872fc1904a105079e1c885821"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab10e16956cc4bf20ced9de77d1129ea4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="vk__mem__alloc_8h.html#ae96ffc099bf898257fb19e9410ed08a7">VmaVirtualAllocationCreateFlags</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4">flags</a></td></tr>
<tr class="memdesc:ab10e16956cc4bf20ced9de77d1129ea4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Use combination of <a class="el" href="vk__mem__alloc_8h.html#a936815e64946a6b6d812d08d10184c23" title="Flags to be passed as VmaVirtualAllocationCreateInfo::flags.">VmaVirtualAllocationCreateFlagBits</a>. <a href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4">More...</a><br /></td></tr>
<tr class="separator:ab10e16956cc4bf20ced9de77d1129ea4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a015f8544ca51a7350f7434d42d0587bb"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_allocation_create_info.html#a015f8544ca51a7350f7434d42d0587bb">pUserData</a></td></tr>
<tr class="memdesc:a015f8544ca51a7350f7434d42d0587bb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Custom pointer to be associated with the allocation. Optional. <a href="struct_vma_virtual_allocation_create_info.html#a015f8544ca51a7350f7434d42d0587bb">More...</a><br /></td></tr>
<tr class="separator:a015f8544ca51a7350f7434d42d0587bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p >Parameters of created virtual allocation to be passed to <a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2" title="Allocates new virtual allocation inside given VmaVirtualBlock.">vmaVirtualAllocate()</a>. </p>
</div><h2 class="groupheader">Member Data Documentation</h2>
<a id="a9d19709872fc1904a105079e1c885821" name="a9d19709872fc1904a105079e1c885821"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9d19709872fc1904a105079e1c885821">&#9670;&nbsp;</a></span>alignment</h2>
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<p>Required alignment of the allocation. Optional. </p>
<p >Must be power of two. Special value 0 has the same meaning as 1 - means no special alignment is required, so allocation can start at any offset. </p>
</div>
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<a id="ab10e16956cc4bf20ced9de77d1129ea4" name="ab10e16956cc4bf20ced9de77d1129ea4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab10e16956cc4bf20ced9de77d1129ea4">&#9670;&nbsp;</a></span>flags</h2>
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<td class="memname"><a class="el" href="vk__mem__alloc_8h.html#ae96ffc099bf898257fb19e9410ed08a7">VmaVirtualAllocationCreateFlags</a> VmaVirtualAllocationCreateInfo::flags</td>
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<p>Use combination of <a class="el" href="vk__mem__alloc_8h.html#a936815e64946a6b6d812d08d10184c23" title="Flags to be passed as VmaVirtualAllocationCreateInfo::flags.">VmaVirtualAllocationCreateFlagBits</a>. </p>
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<a id="a015f8544ca51a7350f7434d42d0587bb" name="a015f8544ca51a7350f7434d42d0587bb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a015f8544ca51a7350f7434d42d0587bb">&#9670;&nbsp;</a></span>pUserData</h2>
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<td class="memname">void* VmaVirtualAllocationCreateInfo::pUserData</td>
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<p>Custom pointer to be associated with the allocation. Optional. </p>
<p >It can be any value and can be used for user-defined purposes. It can be fetched or changed later. </p>
</div>
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<a id="aae08752b86817abd0d944c6025dc603e" name="aae08752b86817abd0d944c6025dc603e"></a>
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<p>Size of the allocation. </p>
<p >Cannot be zero. </p>
</div>
</div>
<hr/>The documentation for this struct was generated from the following file:<ul>
<li>D:/PROJECTS/Vulkan Memory Allocator/REPO/include/<a class="el" href="vk__mem__alloc_8h.html">vk_mem_alloc.h</a></li>
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<tr class="even"><td class="entry"><a class="el" href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">pUserData</a></td><td class="entry"><a class="el" href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a></td><td class="entry"></td></tr>
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<p>Parameters of an existing virtual allocation, returned by <a class="el" href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e" title="Returns information about a specific virtual allocation within a virtual block, like its size and pUs...">vmaGetVirtualAllocationInfo()</a>.
<a href="struct_vma_virtual_allocation_info.html#details">More...</a></p>
<p><code>#include &lt;vk_mem_alloc.h&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:afb6d6bd0a6813869ea0842048d40aa2b"><td class="memItemLeft" align="right" valign="top">VkDeviceSize&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_allocation_info.html#afb6d6bd0a6813869ea0842048d40aa2b">size</a></td></tr>
<tr class="memdesc:afb6d6bd0a6813869ea0842048d40aa2b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Size of the allocation. <a href="struct_vma_virtual_allocation_info.html#afb6d6bd0a6813869ea0842048d40aa2b">More...</a><br /></td></tr>
<tr class="separator:afb6d6bd0a6813869ea0842048d40aa2b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a41d5cb09357656411653d82fee436f45"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">pUserData</a></td></tr>
<tr class="memdesc:a41d5cb09357656411653d82fee436f45"><td class="mdescLeft">&#160;</td><td class="mdescRight">Custom pointer associated with the allocation. <a href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">More...</a><br /></td></tr>
<tr class="separator:a41d5cb09357656411653d82fee436f45"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p >Parameters of an existing virtual allocation, returned by <a class="el" href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e" title="Returns information about a specific virtual allocation within a virtual block, like its size and pUs...">vmaGetVirtualAllocationInfo()</a>. </p>
</div><h2 class="groupheader">Member Data Documentation</h2>
<a id="a41d5cb09357656411653d82fee436f45" name="a41d5cb09357656411653d82fee436f45"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a41d5cb09357656411653d82fee436f45">&#9670;&nbsp;</a></span>pUserData</h2>
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<td class="memname">void* VmaVirtualAllocationInfo::pUserData</td>
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<p>Custom pointer associated with the allocation. </p>
<p >Same value as passed in <a class="el" href="struct_vma_virtual_allocation_create_info.html#a015f8544ca51a7350f7434d42d0587bb" title="Custom pointer to be associated with the allocation. Optional.">VmaVirtualAllocationCreateInfo::pUserData</a> or to <a class="el" href="vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9" title="Changes custom pointer associated with given virtual allocation.">vmaSetVirtualAllocationUserData()</a>. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#afb6d6bd0a6813869ea0842048d40aa2b">&#9670;&nbsp;</a></span>size</h2>
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<p>Size of the allocation. </p>
<p >Same value as passed in <a class="el" href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e" title="Size of the allocation.">VmaVirtualAllocationCreateInfo::size</a>. </p>
</div>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>D:/PROJECTS/Vulkan Memory Allocator/REPO/include/<a class="el" href="vk__mem__alloc_8h.html">vk_mem_alloc.h</a></li>
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<p>Handle to a virtual block object that allows to use core allocation algorithm without allocating any real GPU memory.
<a href="struct_vma_virtual_block.html#details">More...</a></p>
<p><code>#include &lt;vk_mem_alloc.h&gt;</code></p>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p >Handle to a virtual block object that allows to use core allocation algorithm without allocating any real GPU memory. </p>
<p >Fill in <a class="el" href="struct_vma_virtual_block_create_info.html" title="Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().">VmaVirtualBlockCreateInfo</a> structure and Use <a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b" title="Creates new VmaVirtualBlock object.">vmaCreateVirtualBlock()</a> to create it. Use <a class="el" href="vk__mem__alloc_8h.html#a3795f7783ae2c182cede067d656f66a5" title="Destroys VmaVirtualBlock object.">vmaDestroyVirtualBlock()</a> to destroy it. For more information, see documentation chapter <a class="el" href="virtual_allocator.html">Virtual allocator</a>. </p>
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<p>This is the complete list of members for <a class="el" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a>, including all inherited members.</p>
<table class="directory">
<tr class="even"><td class="entry"><a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09">flags</a></td><td class="entry"><a class="el" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></td><td class="entry"></td></tr>
<tr class="odd"><td class="entry"><a class="el" href="struct_vma_virtual_block_create_info.html#a290283bf915c257d24584872d793ad30">pAllocationCallbacks</a></td><td class="entry"><a class="el" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></td><td class="entry"></td></tr>
<tr class="even"><td class="entry"><a class="el" href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9">size</a></td><td class="entry"><a class="el" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></td><td class="entry"></td></tr>
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<a href="#pub-attribs">Public Attributes</a> &#124;
<a href="struct_vma_virtual_block_create_info-members.html">List of all members</a> </div>
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<p>Parameters of created <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object to be passed to <a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b" title="Creates new VmaVirtualBlock object.">vmaCreateVirtualBlock()</a>.
<a href="struct_vma_virtual_block_create_info.html#details">More...</a></p>
<p><code>#include &lt;vk_mem_alloc.h&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a670ab8c6a6e822f3c36781d79e8824e9"><td class="memItemLeft" align="right" valign="top">VkDeviceSize&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9">size</a></td></tr>
<tr class="memdesc:a670ab8c6a6e822f3c36781d79e8824e9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Total size of the virtual block. <a href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9">More...</a><br /></td></tr>
<tr class="separator:a670ab8c6a6e822f3c36781d79e8824e9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5838b15c053a0370420e4e1d82d09c09"><td class="memItemLeft" align="right" valign="top"><a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">VmaVirtualBlockCreateFlagBits</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09">flags</a></td></tr>
<tr class="memdesc:a5838b15c053a0370420e4e1d82d09c09"><td class="mdescLeft">&#160;</td><td class="mdescRight">Use combination of <a class="el" href="vk__mem__alloc_8h.html#a0860ba1c0a67178fae4aecb63a78573e" title="Flags to be passed as VmaVirtualBlockCreateInfo::flags.">VmaVirtualBlockCreateFlagBits</a>. <a href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09">More...</a><br /></td></tr>
<tr class="separator:a5838b15c053a0370420e4e1d82d09c09"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a290283bf915c257d24584872d793ad30"><td class="memItemLeft" align="right" valign="top">const VkAllocationCallbacks *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_block_create_info.html#a290283bf915c257d24584872d793ad30">pAllocationCallbacks</a></td></tr>
<tr class="memdesc:a290283bf915c257d24584872d793ad30"><td class="mdescLeft">&#160;</td><td class="mdescRight">Custom CPU memory allocation callbacks. Optional. <a href="struct_vma_virtual_block_create_info.html#a290283bf915c257d24584872d793ad30">More...</a><br /></td></tr>
<tr class="separator:a290283bf915c257d24584872d793ad30"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p >Parameters of created <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object to be passed to <a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b" title="Creates new VmaVirtualBlock object.">vmaCreateVirtualBlock()</a>. </p>
</div><h2 class="groupheader">Member Data Documentation</h2>
<a id="a5838b15c053a0370420e4e1d82d09c09" name="a5838b15c053a0370420e4e1d82d09c09"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5838b15c053a0370420e4e1d82d09c09">&#9670;&nbsp;</a></span>flags</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">VmaVirtualBlockCreateFlagBits</a> VmaVirtualBlockCreateInfo::flags</td>
</tr>
</table>
</div><div class="memdoc">
<p>Use combination of <a class="el" href="vk__mem__alloc_8h.html#a0860ba1c0a67178fae4aecb63a78573e" title="Flags to be passed as VmaVirtualBlockCreateInfo::flags.">VmaVirtualBlockCreateFlagBits</a>. </p>
</div>
</div>
<a id="a290283bf915c257d24584872d793ad30" name="a290283bf915c257d24584872d793ad30"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a290283bf915c257d24584872d793ad30">&#9670;&nbsp;</a></span>pAllocationCallbacks</h2>
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<td class="memname">const VkAllocationCallbacks* VmaVirtualBlockCreateInfo::pAllocationCallbacks</td>
</tr>
</table>
</div><div class="memdoc">
<p>Custom CPU memory allocation callbacks. Optional. </p>
<p >Optional, can be null. When specified, they will be used for all CPU-side memory allocations. </p>
</div>
</div>
<a id="a670ab8c6a6e822f3c36781d79e8824e9" name="a670ab8c6a6e822f3c36781d79e8824e9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a670ab8c6a6e822f3c36781d79e8824e9">&#9670;&nbsp;</a></span>size</h2>
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<td class="memname">VkDeviceSize VmaVirtualBlockCreateInfo::size</td>
</tr>
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<p>Total size of the virtual block. </p>
<p >Sizes can be expressed in bytes or any units you want as long as you are consistent in using them. For example, if you allocate from some array of structures, 1 can mean single instance of entire structure. </p>
</div>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>D:/PROJECTS/Vulkan Memory Allocator/REPO/include/<a class="el" href="vk__mem__alloc_8h.html">vk_mem_alloc.h</a></li>
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<div class="textblock"><p >As an extra feature, the core allocation algorithm of the library is exposed through a simple and convenient API of "virtual allocator". It doesn't allocate any real GPU memory. It just keeps track of used and free regions of a "virtual block". You can use it to allocate your own memory or other objects, even completely unrelated to Vulkan. A common use case is sub-allocation of pieces of one large GPU buffer.</p>
<h1><a class="anchor" id="virtual_allocator_creating_virtual_block"></a>
Creating virtual block</h1>
<p >To use this functionality, there is no main "allocator" object. You don't need to have <a class="el" href="struct_vma_allocator.html" title="Represents main object of this library initialized.">VmaAllocator</a> object created. All you need to do is to create a separate <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object for each block of memory you want to be managed by the allocator:</p>
<ol type="1">
<li>Fill in <a class="el" href="struct_vma_virtual_block_create_info.html" title="Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().">VmaVirtualBlockCreateInfo</a> structure.</li>
<li>Call <a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b" title="Creates new VmaVirtualBlock object.">vmaCreateVirtualBlock()</a>. Get new <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object.</li>
</ol>
<p >Example:</p>
<div class="fragment"><div class="line"><a class="code hl_struct" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a> blockCreateInfo = {};</div>
<div class="line">blockCreateInfo.<a class="code hl_variable" href="struct_vma_virtual_block_create_info.html#a670ab8c6a6e822f3c36781d79e8824e9">size</a> = 1048576; <span class="comment">// 1 MB</span></div>
<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:2187</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:2193</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>
Making virtual allocations</h1>
<p ><a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object contains internal data structure that keeps track of free and occupied regions using the same code as the main Vulkan memory allocator. However, there is no "virtual allocation" object. When you request a new allocation, a <code>VkDeviceSize</code> number is returned. It is an offset inside the block where the allocation has been placed, but it also uniquely identifies the allocation within this block.</p>
<p >In order to make an allocation:</p>
<ol type="1">
<li>Fill in <a class="el" href="struct_vma_virtual_allocation_create_info.html" title="Parameters of created virtual allocation to be passed to vmaVirtualAllocate().">VmaVirtualAllocationCreateInfo</a> structure.</li>
<li>Call <a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2" title="Allocates new virtual allocation inside given VmaVirtualBlock.">vmaVirtualAllocate()</a>. Get new <code>VkDeviceSize offset</code> that identifies the allocation.</li>
</ol>
<p >Example:</p>
<div class="fragment"><div class="line"><a class="code hl_struct" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a> allocCreateInfo = {};</div>
<div class="line">allocCreateInfo.<a class="code hl_variable" href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">size</a> = 4096; <span class="comment">// 4 KB</span></div>
<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="line"><span class="keywordflow">if</span>(res == VK_SUCCESS)</div>
<div class="line">{</div>
<div class="line"> <span class="comment">// Use the 4 KB of your memory starting at allocOffset.</span></div>
<div class="line">}</div>
<div class="line"><span class="keywordflow">else</span></div>
<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:2235</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:2240</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>
<p >When no longer needed, an allocation can be freed by calling <a class="el" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639" title="Frees virtual allocation inside given VmaVirtualBlock.">vmaVirtualFree()</a>. You can only pass to this function the exact offset that was previously returned by <a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2" title="Allocates new virtual allocation inside given VmaVirtualBlock.">vmaVirtualAllocate()</a> and not any other location within the memory.</p>
<p >When whole block is no longer needed, the block object can be released by calling <a class="el" href="vk__mem__alloc_8h.html#a3795f7783ae2c182cede067d656f66a5" title="Destroys VmaVirtualBlock object.">vmaDestroyVirtualBlock()</a>. All allocations must be freed before the block is destroyed, which is checked internally by an assert. However, if you don't want to call <a class="el" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639" title="Frees virtual allocation inside given VmaVirtualBlock.">vmaVirtualFree()</a> for each allocation, you can use <a class="el" href="vk__mem__alloc_8h.html#a5eda6f55919fb05bd2f56a112590c571" title="Frees all virtual allocations inside given VmaVirtualBlock.">vmaClearVirtualBlock()</a> to free them all at once - a feature not available in normal Vulkan memory allocator. Example:</p>
<div class="fragment"><div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639">vmaVirtualFree</a>(block, allocOffset);</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a3795f7783ae2c182cede067d656f66a5">vmaDestroyVirtualBlock</a>(block);</div>
<div class="ttc" id="avk__mem__alloc_8h_html_a13f01c44b3c1a06e695f1f5d24b80639"><div class="ttname"><a href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639">vmaVirtualFree</a></div><div class="ttdeci">void vmaVirtualFree(VmaVirtualBlock virtualBlock, VkDeviceSize offset)</div><div class="ttdoc">Frees virtual allocation inside given VmaVirtualBlock.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a3795f7783ae2c182cede067d656f66a5"><div class="ttname"><a href="vk__mem__alloc_8h.html#a3795f7783ae2c182cede067d656f66a5">vmaDestroyVirtualBlock</a></div><div class="ttdeci">void vmaDestroyVirtualBlock(VmaVirtualBlock virtualBlock)</div><div class="ttdoc">Destroys VmaVirtualBlock object.</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_allocation_parameters"></a>
Allocation parameters</h1>
<p >You can attach a custom pointer to each allocation by using <a class="el" href="vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9" title="Changes custom pointer associated with given virtual allocation.">vmaSetVirtualAllocationUserData()</a>. Its default value is null. It can be used to store any data that needs to be associated with that allocation - e.g. an index, a handle, or a pointer to some larger data structure containing more information. Example:</p>
<div class="fragment"><div class="line"><span class="keyword">struct </span>CustomAllocData</div>
<div class="line">{</div>
<div class="line"> std::string m_AllocName;</div>
<div class="line">};</div>
<div class="line">CustomAllocData* allocData = <span class="keyword">new</span> CustomAllocData();</div>
<div class="line">allocData-&gt;m_AllocName = <span class="stringliteral">&quot;My allocation 1&quot;</span>;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9">vmaSetVirtualAllocationUserData</a>(block, allocOffset, allocData);</div>
<div class="ttc" id="avk__mem__alloc_8h_html_a4b96f835d38686df937e097a0c7db5e9"><div class="ttname"><a href="vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9">vmaSetVirtualAllocationUserData</a></div><div class="ttdeci">void vmaSetVirtualAllocationUserData(VmaVirtualBlock virtualBlock, VkDeviceSize offset, void *pUserData)</div><div class="ttdoc">Changes custom pointer associated with given virtual allocation.</div></div>
</div><!-- fragment --><p >The pointer can later be fetched, along with allocation size, by passing the allocation offset to function <a class="el" href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e" title="Returns information about a specific virtual allocation within a virtual block, like its size and pUs...">vmaGetVirtualAllocationInfo()</a> and inspecting returned structure <a class="el" href="struct_vma_virtual_allocation_info.html" title="Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().">VmaVirtualAllocationInfo</a>. If you allocated a new object to be used as the custom pointer, don't forget to delete that object before freeing the allocation! Example:</p>
<div class="fragment"><div class="line"><a class="code hl_struct" href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a> allocInfo;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e">vmaGetVirtualAllocationInfo</a>(block, allocOffset, &amp;allocInfo);</div>
<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:2258</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:2268</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>
<p >It feels natural to express sizes and offsets in bytes. If an offset of an allocation needs to be aligned to a multiply of some number (e.g. 4 bytes), you can fill optional member <a class="el" href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821" title="Required alignment of the allocation. Optional.">VmaVirtualAllocationCreateInfo::alignment</a> to request it. Example:</p>
<div class="fragment"><div class="line"><a class="code hl_struct" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a> allocCreateInfo = {};</div>
<div class="line">allocCreateInfo.<a class="code hl_variable" href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e">size</a> = 4096; <span class="comment">// 4 KB</span></div>
<div class="line">allocCreateInfo.<a class="code hl_variable" href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">alignment</a> = 4; <span class="comment">// Returned offset must be a multiply of 4 B</span></div>
<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:2245</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>
<li><a class="el" href="struct_vma_virtual_allocation_create_info.html#aae08752b86817abd0d944c6025dc603e" title="Size of the allocation.">VmaVirtualAllocationCreateInfo::size</a> and <a class="el" href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821" title="Required alignment of the allocation. Optional.">VmaVirtualAllocationCreateInfo::alignment</a></li>
<li>Using offset returned by <a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2" title="Allocates new virtual allocation inside given VmaVirtualBlock.">vmaVirtualAllocate()</a></li>
</ul>
<h1><a class="anchor" id="virtual_allocator_statistics"></a>
Statistics</h1>
<p >You can obtain statistics of a virtual block using <a class="el" href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a" title="Calculates and returns statistics about virtual allocations and memory usage in given VmaVirtualBlock...">vmaCalculateVirtualBlockStats()</a>. The function fills structure <a class="el" href="struct_vma_stat_info.html" title="Calculated statistics of memory usage in entire allocator.">VmaStatInfo</a> - same as used by the normal Vulkan memory allocator. Example:</p>
<div class="fragment"><div class="line"><a class="code hl_struct" href="struct_vma_stat_info.html">VmaStatInfo</a> statInfo;</div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a">vmaCalculateVirtualBlockStats</a>(block, &amp;statInfo);</div>
<div class="line">printf(<span class="stringliteral">&quot;My virtual block has %llu bytes used by %u virtual allocations\n&quot;</span>,</div>
<div class="line"> statInfo.<a class="code hl_variable" href="struct_vma_stat_info.html#ab0c6c73837e5a70c749fbd4f6064895a">usedBytes</a>, statInfo.<a class="code hl_variable" href="struct_vma_stat_info.html#a537741e4d5cdddc1c0ab95ec650afaff">allocationCount</a>);</div>
<div class="ttc" id="astruct_vma_stat_info_html"><div class="ttname"><a href="struct_vma_stat_info.html">VmaStatInfo</a></div><div class="ttdoc">Calculated statistics of memory usage in entire allocator.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:683</div></div>
<div class="ttc" id="astruct_vma_stat_info_html_a537741e4d5cdddc1c0ab95ec650afaff"><div class="ttname"><a href="struct_vma_stat_info.html#a537741e4d5cdddc1c0ab95ec650afaff">VmaStatInfo::allocationCount</a></div><div class="ttdeci">uint32_t allocationCount</div><div class="ttdoc">Number of VmaAllocation allocation objects allocated.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:687</div></div>
<div class="ttc" id="astruct_vma_stat_info_html_ab0c6c73837e5a70c749fbd4f6064895a"><div class="ttname"><a href="struct_vma_stat_info.html#ab0c6c73837e5a70c749fbd4f6064895a">VmaStatInfo::usedBytes</a></div><div class="ttdeci">VkDeviceSize usedBytes</div><div class="ttdoc">Total number of bytes occupied by all allocations.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:691</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a95169b4730e94757897470086ec2768a"><div class="ttname"><a href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a">vmaCalculateVirtualBlockStats</a></div><div class="ttdeci">void vmaCalculateVirtualBlockStats(VmaVirtualBlock virtualBlock, VmaStatInfo *pStatInfo)</div><div class="ttdoc">Calculates and returns statistics about virtual allocations and memory usage in given VmaVirtualBlock...</div></div>
</div><!-- fragment --><p >You can also request a full list of allocations and free regions as a string in JSON format by calling <a class="el" href="vk__mem__alloc_8h.html#a52d810e1222c592e5d80556ad005f1e6" title="Builds and returns a null-terminated string in JSON format with information about given VmaVirtualBlo...">vmaBuildVirtualBlockStatsString()</a>. Returned string must be later freed using <a class="el" href="vk__mem__alloc_8h.html#a47fb8d8aa69df4a7c23a9719b4080623" title="Frees a string returned by vmaBuildVirtualBlockStatsString().">vmaFreeVirtualBlockStatsString()</a>. The format of this string differs from the one returned by the main Vulkan allocator, but it is similar.</p>
<h1><a class="anchor" id="virtual_allocator_additional_considerations"></a>
Additional considerations</h1>
<p >The "virtual allocator" functionality is implemented on a level of individual memory blocks. Keeping track of a whole collection of blocks, allocating new ones when out of free space, deleting empty ones, and deciding which one to try first for a new allocation must be implemented by the user.</p>
<p >Alternative allocation algorithms are supported, just like in custom pools of the real GPU memory. See enum <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca" title="Flags to be passed as VmaVirtualBlockCreateInfo::flags.">VmaVirtualBlockCreateFlagBits</a> to learn how to specify them (e.g. <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaae6423e2fa2f3c9211b21c819e3f10f96" title="Enables alternative, linear allocation algorithm in this virtual block.">VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT</a>). You can find their description in chapter <a class="el" href="custom_memory_pools.html">Custom memory pools</a>. Allocation strategies are also supported. See enum <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6" title="Flags to be passed as VmaVirtualAllocationCreateInfo::flags.">VmaVirtualAllocationCreateFlagBits</a> to learn how to specify them (e.g. <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6a562d10a46012719d33167d3dc5dbbf9b" title="Allocation strategy that tries to minimize allocation time.">VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT</a>).</p>
<p >Following features are supported only by the allocator of the real GPU memory and not by virtual allocations: buffer-image granularity, <a class="el" href="lost_allocations.html">Lost allocations</a>, <code>VMA_DEBUG_MARGIN</code>, <code>VMA_MIN_ALIGNMENT</code>. </p>
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@ -128,6 +128,15 @@ Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_defragmentation_stats.html">VmaDefragmentationStats</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Statistics returned by function <a class="el" href="vk__mem__alloc_8h.html#a9f0f8f56db5f7f57fe4454f465142dac" title="Deprecated. Compacts memory by moving allocations.">vmaDefragment()</a>. <a href="struct_vma_defragmentation_stats.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Parameters of created <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object to be passed to <a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b" title="Creates new VmaVirtualBlock object.">vmaCreateVirtualBlock()</a>. <a href="struct_vma_virtual_block_create_info.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Parameters of created virtual allocation to be passed to <a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2" title="Allocates new virtual allocation inside given VmaVirtualBlock.">vmaVirtualAllocate()</a>. <a href="struct_vma_virtual_allocation_create_info.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Parameters of an existing virtual allocation, returned by <a class="el" href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e" title="Returns information about a specific virtual allocation within a virtual block, like its size and pUs...">vmaGetVirtualAllocationInfo()</a>. <a href="struct_vma_virtual_allocation_info.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="define-members" name="define-members"></a>
Macros</h2></td></tr>
@ -203,6 +212,7 @@ Typedefs</h2></td></tr>
<tr class="memdesc:a4d4f2efc2509157a9e4ecd4fd7942303"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be passed as <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446" title="Use combination of VmaPoolCreateFlagBits.">VmaPoolCreateInfo::flags</a>. <a href="vk__mem__alloc_8h.html#a4d4f2efc2509157a9e4ecd4fd7942303">More...</a><br /></td></tr>
<tr class="separator:a4d4f2efc2509157a9e4ecd4fd7942303"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2770e325ea42e087c1b91fdf46d0292a"><td class="memItemLeft" align="right" valign="top">typedef VkFlags&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a2770e325ea42e087c1b91fdf46d0292a">VmaPoolCreateFlags</a></td></tr>
<tr class="memdesc:a2770e325ea42e087c1b91fdf46d0292a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be passed as <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446" title="Use combination of VmaPoolCreateFlagBits.">VmaPoolCreateInfo::flags</a>. See <a class="el" href="vk__mem__alloc_8h.html#a9a7c45f9c863695d98c83fa5ac940fe7" title="Flags to be passed as VmaPoolCreateInfo::flags.">VmaPoolCreateFlagBits</a>. <a href="vk__mem__alloc_8h.html#a2770e325ea42e087c1b91fdf46d0292a">More...</a><br /></td></tr>
<tr class="separator:a2770e325ea42e087c1b91fdf46d0292a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1017aa83489c0eee8d2163d2bf253f67"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct_vma_pool_create_info.html">VmaPoolCreateInfo</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a1017aa83489c0eee8d2163d2bf253f67">VmaPoolCreateInfo</a></td></tr>
<tr class="memdesc:a1017aa83489c0eee8d2163d2bf253f67"><td class="mdescLeft">&#160;</td><td class="mdescRight">Describes parameter of created <a class="el" href="struct_vma_pool.html" title="Represents custom memory pool.">VmaPool</a>. <a href="vk__mem__alloc_8h.html#a1017aa83489c0eee8d2163d2bf253f67">More...</a><br /></td></tr>
@ -232,6 +242,18 @@ Typedefs</h2></td></tr>
<tr class="memitem:ad94034192259c2e34a4d1c5e27810403"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct_vma_defragmentation_stats.html">VmaDefragmentationStats</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#ad94034192259c2e34a4d1c5e27810403">VmaDefragmentationStats</a></td></tr>
<tr class="memdesc:ad94034192259c2e34a4d1c5e27810403"><td class="mdescLeft">&#160;</td><td class="mdescRight">Statistics returned by function <a class="el" href="vk__mem__alloc_8h.html#a9f0f8f56db5f7f57fe4454f465142dac" title="Deprecated. Compacts memory by moving allocations.">vmaDefragment()</a>. <a href="vk__mem__alloc_8h.html#ad94034192259c2e34a4d1c5e27810403">More...</a><br /></td></tr>
<tr class="separator:ad94034192259c2e34a4d1c5e27810403"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0860ba1c0a67178fae4aecb63a78573e"><td class="memItemLeft" align="right" valign="top">typedef enum <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">VmaVirtualBlockCreateFlagBits</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a0860ba1c0a67178fae4aecb63a78573e">VmaVirtualBlockCreateFlagBits</a></td></tr>
<tr class="memdesc:a0860ba1c0a67178fae4aecb63a78573e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be passed as <a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09" title="Use combination of VmaVirtualBlockCreateFlagBits.">VmaVirtualBlockCreateInfo::flags</a>. <a href="vk__mem__alloc_8h.html#a0860ba1c0a67178fae4aecb63a78573e">More...</a><br /></td></tr>
<tr class="separator:a0860ba1c0a67178fae4aecb63a78573e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4e49c2f0ab7f6b4868833e5bac78d91e"><td class="memItemLeft" align="right" valign="top">typedef VkFlags&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a4e49c2f0ab7f6b4868833e5bac78d91e">VmaVirtualBlockCreateFlags</a></td></tr>
<tr class="memdesc:a4e49c2f0ab7f6b4868833e5bac78d91e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be passed as <a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09" title="Use combination of VmaVirtualBlockCreateFlagBits.">VmaVirtualBlockCreateInfo::flags</a>. See <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca" title="Flags to be passed as VmaVirtualBlockCreateInfo::flags.">VmaVirtualBlockCreateFlagBits</a>. <a href="vk__mem__alloc_8h.html#a4e49c2f0ab7f6b4868833e5bac78d91e">More...</a><br /></td></tr>
<tr class="separator:a4e49c2f0ab7f6b4868833e5bac78d91e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a936815e64946a6b6d812d08d10184c23"><td class="memItemLeft" align="right" valign="top">typedef enum <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6">VmaVirtualAllocationCreateFlagBits</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a936815e64946a6b6d812d08d10184c23">VmaVirtualAllocationCreateFlagBits</a></td></tr>
<tr class="memdesc:a936815e64946a6b6d812d08d10184c23"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be passed as <a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4" title="Use combination of VmaVirtualAllocationCreateFlagBits.">VmaVirtualAllocationCreateInfo::flags</a>. <a href="vk__mem__alloc_8h.html#a936815e64946a6b6d812d08d10184c23">More...</a><br /></td></tr>
<tr class="separator:a936815e64946a6b6d812d08d10184c23"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae96ffc099bf898257fb19e9410ed08a7"><td class="memItemLeft" align="right" valign="top">typedef VkFlags&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#ae96ffc099bf898257fb19e9410ed08a7">VmaVirtualAllocationCreateFlags</a></td></tr>
<tr class="memdesc:ae96ffc099bf898257fb19e9410ed08a7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be passed as <a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4" title="Use combination of VmaVirtualAllocationCreateFlagBits.">VmaVirtualAllocationCreateInfo::flags</a>. See <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6" title="Flags to be passed as VmaVirtualAllocationCreateInfo::flags.">VmaVirtualAllocationCreateFlagBits</a>. <a href="vk__mem__alloc_8h.html#ae96ffc099bf898257fb19e9410ed08a7">More...</a><br /></td></tr>
<tr class="separator:ae96ffc099bf898257fb19e9410ed08a7"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="enum-members" name="enum-members"></a>
Enumerations</h2></td></tr>
@ -309,6 +331,25 @@ Enumerations</h2></td></tr>
}</td></tr>
<tr class="memdesc:a6552a65b71d16f378c6994b3ceaef50c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be used in <a class="el" href="vk__mem__alloc_8h.html#a36ba776fd7fd5cb1e9359fdc0d8e6e8a" title="Begins defragmentation process.">vmaDefragmentationBegin()</a>. None at the moment. Reserved for future use. <a href="vk__mem__alloc_8h.html#a6552a65b71d16f378c6994b3ceaef50c">More...</a><br /></td></tr>
<tr class="separator:a6552a65b71d16f378c6994b3ceaef50c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a88bcf8c1cd3bb1610ff7343811c65bca"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">VmaVirtualBlockCreateFlagBits</a> { <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaae6423e2fa2f3c9211b21c819e3f10f96">VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT</a> = 0x00000001
, <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaa923116612509e26bf84982b9baf25c63">VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT</a> = 0x00000002
, <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaaf9487467136e1a9e371894dc3a7c4844">VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK</a>
, <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaa5fc0d333c3d5687a8bbf57df9b377a87">VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM</a> = 0x7FFFFFFF
}</td></tr>
<tr class="memdesc:a88bcf8c1cd3bb1610ff7343811c65bca"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be passed as <a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09" title="Use combination of VmaVirtualBlockCreateFlagBits.">VmaVirtualBlockCreateInfo::flags</a>. <a href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">More...</a><br /></td></tr>
<tr class="separator:a88bcf8c1cd3bb1610ff7343811c65bca"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2e9c64d405b14156fea7e10c4ad06cb6"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6">VmaVirtualAllocationCreateFlagBits</a> { <br />
&#160;&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6a9524a329a55b5ec390d57d90b67ad78e">VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT</a> = VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT
, <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6ae2a9591a62b5e3b1bdcbc81c6188a1bf">VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT</a> = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT
, <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6a562d10a46012719d33167d3dc5dbbf9b">VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT</a> = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT
, <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6a9aa0c32667ba2deaa9cdeac6149ec47a">VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_FRAGMENTATION_BIT</a> = VMA_ALLOCATION_CREATE_STRATEGY_MIN_FRAGMENTATION_BIT
, <br />
&#160;&#160;<a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6ac5b5e45c335368d18df59c9f27df17e3">VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK</a> = VMA_ALLOCATION_CREATE_STRATEGY_MASK
, <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6ac1163c03ea837fa663462dc286d6a1a9">VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM</a> = 0x7FFFFFFF
<br />
}</td></tr>
<tr class="memdesc:a2e9c64d405b14156fea7e10c4ad06cb6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Flags to be passed as <a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4" title="Use combination of VmaVirtualAllocationCreateFlagBits.">VmaVirtualAllocationCreateInfo::flags</a>. <a href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6">More...</a><br /></td></tr>
<tr class="separator:a2e9c64d405b14156fea7e10c4ad06cb6"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
@ -338,7 +379,7 @@ Functions</h2></td></tr>
<tr class="memdesc:aec0ed24ebea2d0099eed5f801daaefba"><td class="mdescLeft">&#160;</td><td class="mdescRight">Retrieves information about current memory budget for all memory heaps. <a href="vk__mem__alloc_8h.html#aec0ed24ebea2d0099eed5f801daaefba">More...</a><br /></td></tr>
<tr class="separator:aec0ed24ebea2d0099eed5f801daaefba"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa4fee7eb5253377599ef4fd38c93c2a0"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0">vmaBuildStatsString</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, char **ppStatsString, VkBool32 detailedMap)</td></tr>
<tr class="memdesc:aa4fee7eb5253377599ef4fd38c93c2a0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Builds and returns statistics as string in JSON format. <a href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0">More...</a><br /></td></tr>
<tr class="memdesc:aa4fee7eb5253377599ef4fd38c93c2a0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Builds and returns statistics as a null-terminated string in JSON format. <a href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0">More...</a><br /></td></tr>
<tr class="separator:aa4fee7eb5253377599ef4fd38c93c2a0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3104eb30d8122c84dd8541063f145288"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a3104eb30d8122c84dd8541063f145288">vmaFreeStatsString</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, char *pStatsString)</td></tr>
<tr class="separator:a3104eb30d8122c84dd8541063f145288"><td class="memSeparator" colspan="2">&#160;</td></tr>
@ -461,6 +502,41 @@ Functions</h2></td></tr>
<tr class="memitem:ae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#ae50d2cb3b4a3bfd4dd40987234e50e7e">vmaDestroyImage</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, VkImage image, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation)</td></tr>
<tr class="memdesc:ae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroys Vulkan image and frees allocated memory. <a href="vk__mem__alloc_8h.html#ae50d2cb3b4a3bfd4dd40987234e50e7e">More...</a><br /></td></tr>
<tr class="separator:ae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a916e5291bb205e995aa87aee1d6dbbfc"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a916e5291bb205e995aa87aee1d6dbbfc">VK_DEFINE_HANDLE</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>)</td></tr>
<tr class="separator:a916e5291bb205e995aa87aee1d6dbbfc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab585754076877265fdae33e5c40ef13b"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b">vmaCreateVirtualBlock</a> (const <a class="el" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a> *pCreateInfo, <a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> *pVirtualBlock)</td></tr>
<tr class="memdesc:ab585754076877265fdae33e5c40ef13b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates new <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object. <a href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b">More...</a><br /></td></tr>
<tr class="separator:ab585754076877265fdae33e5c40ef13b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3795f7783ae2c182cede067d656f66a5"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a3795f7783ae2c182cede067d656f66a5">vmaDestroyVirtualBlock</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock)</td></tr>
<tr class="memdesc:a3795f7783ae2c182cede067d656f66a5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroys <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object. <a href="vk__mem__alloc_8h.html#a3795f7783ae2c182cede067d656f66a5">More...</a><br /></td></tr>
<tr class="separator:a3795f7783ae2c182cede067d656f66a5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acd53b5b1d23f8fcbad692ccfdc1811f1"><td class="memItemLeft" align="right" valign="top">VkBool32&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#acd53b5b1d23f8fcbad692ccfdc1811f1">vmaIsVirtualBlockEmpty</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock)</td></tr>
<tr class="memdesc:acd53b5b1d23f8fcbad692ccfdc1811f1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns true of the <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> is empty - contains 0 virtual allocations and has all its space available for new allocations. <a href="vk__mem__alloc_8h.html#acd53b5b1d23f8fcbad692ccfdc1811f1">More...</a><br /></td></tr>
<tr class="separator:acd53b5b1d23f8fcbad692ccfdc1811f1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab5fcb961ffea69023e7e0ea100bdad8e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e">vmaGetVirtualAllocationInfo</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock, VkDeviceSize offset, <a class="el" href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a> *pVirtualAllocInfo)</td></tr>
<tr class="memdesc:ab5fcb961ffea69023e7e0ea100bdad8e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns information about a specific virtual allocation within a virtual block, like its size and <code>pUserData</code> pointer. <a href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e">More...</a><br /></td></tr>
<tr class="separator:ab5fcb961ffea69023e7e0ea100bdad8e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1c15925e6745dacee0cfc877fffecec2"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2">vmaVirtualAllocate</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock, const <a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a> *pCreateInfo, VkDeviceSize *pOffset)</td></tr>
<tr class="memdesc:a1c15925e6745dacee0cfc877fffecec2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Allocates new virtual allocation inside given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. <a href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2">More...</a><br /></td></tr>
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<tr class="memitem:a13f01c44b3c1a06e695f1f5d24b80639"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639">vmaVirtualFree</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock, VkDeviceSize offset)</td></tr>
<tr class="memdesc:a13f01c44b3c1a06e695f1f5d24b80639"><td class="mdescLeft">&#160;</td><td class="mdescRight">Frees virtual allocation inside given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. <a href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639">More...</a><br /></td></tr>
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<tr class="memitem:a5eda6f55919fb05bd2f56a112590c571"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a5eda6f55919fb05bd2f56a112590c571">vmaClearVirtualBlock</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock)</td></tr>
<tr class="memdesc:a5eda6f55919fb05bd2f56a112590c571"><td class="mdescLeft">&#160;</td><td class="mdescRight">Frees all virtual allocations inside given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. <a href="vk__mem__alloc_8h.html#a5eda6f55919fb05bd2f56a112590c571">More...</a><br /></td></tr>
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<tr class="memitem:a4b96f835d38686df937e097a0c7db5e9"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9">vmaSetVirtualAllocationUserData</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock, VkDeviceSize offset, void *pUserData)</td></tr>
<tr class="memdesc:a4b96f835d38686df937e097a0c7db5e9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Changes custom pointer associated with given virtual allocation. <a href="vk__mem__alloc_8h.html#a4b96f835d38686df937e097a0c7db5e9">More...</a><br /></td></tr>
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<tr class="memitem:a95169b4730e94757897470086ec2768a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a">vmaCalculateVirtualBlockStats</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock, <a class="el" href="struct_vma_stat_info.html">VmaStatInfo</a> *pStatInfo)</td></tr>
<tr class="memdesc:a95169b4730e94757897470086ec2768a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates and returns statistics about virtual allocations and memory usage in given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. <a href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a">More...</a><br /></td></tr>
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<tr class="memitem:a52d810e1222c592e5d80556ad005f1e6"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a52d810e1222c592e5d80556ad005f1e6">vmaBuildVirtualBlockStatsString</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock, char **ppStatsString, VkBool32 detailedMap)</td></tr>
<tr class="memdesc:a52d810e1222c592e5d80556ad005f1e6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Builds and returns a null-terminated string in JSON format with information about given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. <a href="vk__mem__alloc_8h.html#a52d810e1222c592e5d80556ad005f1e6">More...</a><br /></td></tr>
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<tr class="memitem:a47fb8d8aa69df4a7c23a9719b4080623"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#a47fb8d8aa69df4a7c23a9719b4080623">vmaFreeVirtualBlockStatsString</a> (<a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> virtualBlock, char *pStatsString)</td></tr>
<tr class="memdesc:a47fb8d8aa69df4a7c23a9719b4080623"><td class="mdescLeft">&#160;</td><td class="mdescRight">Frees a string returned by <a class="el" href="vk__mem__alloc_8h.html#a52d810e1222c592e5d80556ad005f1e6" title="Builds and returns a null-terminated string in JSON format with information about given VmaVirtualBlo...">vmaBuildVirtualBlockStatsString()</a>. <a href="vk__mem__alloc_8h.html#a47fb8d8aa69df4a7c23a9719b4080623">More...</a><br /></td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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<p>Flags to be passed as <a class="el" href="struct_vma_pool_create_info.html#a8405139f63d078340ae74513a59f5446" title="Use combination of VmaPoolCreateFlagBits.">VmaPoolCreateInfo::flags</a>. See <a class="el" href="vk__mem__alloc_8h.html#a9a7c45f9c863695d98c83fa5ac940fe7" title="Flags to be passed as VmaPoolCreateInfo::flags.">VmaPoolCreateFlagBits</a>. </p>
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<p>General statistics from current state of Allocator. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a936815e64946a6b6d812d08d10184c23">&#9670;&nbsp;</a></span>VmaVirtualAllocationCreateFlagBits</h2>
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<td class="memname">typedef enum <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6">VmaVirtualAllocationCreateFlagBits</a> <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6">VmaVirtualAllocationCreateFlagBits</a></td>
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<p>Flags to be passed as <a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4" title="Use combination of VmaVirtualAllocationCreateFlagBits.">VmaVirtualAllocationCreateInfo::flags</a>. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae96ffc099bf898257fb19e9410ed08a7">&#9670;&nbsp;</a></span>VmaVirtualAllocationCreateFlags</h2>
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<td class="memname">typedef VkFlags <a class="el" href="vk__mem__alloc_8h.html#ae96ffc099bf898257fb19e9410ed08a7">VmaVirtualAllocationCreateFlags</a></td>
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<p>Flags to be passed as <a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4" title="Use combination of VmaVirtualAllocationCreateFlagBits.">VmaVirtualAllocationCreateInfo::flags</a>. See <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6" title="Flags to be passed as VmaVirtualAllocationCreateInfo::flags.">VmaVirtualAllocationCreateFlagBits</a>. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0860ba1c0a67178fae4aecb63a78573e">&#9670;&nbsp;</a></span>VmaVirtualBlockCreateFlagBits</h2>
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<td class="memname">typedef enum <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">VmaVirtualBlockCreateFlagBits</a> <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">VmaVirtualBlockCreateFlagBits</a></td>
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<p>Flags to be passed as <a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09" title="Use combination of VmaVirtualBlockCreateFlagBits.">VmaVirtualBlockCreateInfo::flags</a>. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4e49c2f0ab7f6b4868833e5bac78d91e">&#9670;&nbsp;</a></span>VmaVirtualBlockCreateFlags</h2>
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<td class="memname">typedef VkFlags <a class="el" href="vk__mem__alloc_8h.html#a4e49c2f0ab7f6b4868833e5bac78d91e">VmaVirtualBlockCreateFlags</a></td>
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<p>Flags to be passed as <a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09" title="Use combination of VmaVirtualBlockCreateFlagBits.">VmaVirtualBlockCreateInfo::flags</a>. See <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca" title="Flags to be passed as VmaVirtualBlockCreateInfo::flags.">VmaVirtualBlockCreateFlagBits</a>. </p>
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@ -1083,7 +1225,7 @@ Functions</h2></td></tr>
<tr><td class="fieldname"><a id="ad9889c10c798b040d59c92f257cae597a68686d0ce9beb0d4d1b9f2b8b1389a7e" name="ad9889c10c798b040d59c92f257cae597a68686d0ce9beb0d4d1b9f2b8b1389a7e"></a>VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT&#160;</td><td class="fielddoc"><p >While creating allocation using this flag, other allocations that were created with flag <a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a5f436af6c8fe8540573a6d22627a6fd2">VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT</a> can become lost.</p>
<p >For details about supporting lost allocations, see Lost Allocations chapter of User Guide on Main Page. </p>
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<tr><td class="fieldname"><a id="ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520" name="ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520"></a>VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT&#160;</td><td class="fielddoc"><p >Set this flag to treat <a class="el" href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19" title="Custom general-purpose pointer that will be stored in VmaAllocation, can be read as VmaAllocationInfo...">VmaAllocationCreateInfo::pUserData</a> as pointer to a null-terminated string. Instead of copying pointer value, a local copy of the string is made and stored in allocation's <code>pUserData</code>. The string is automatically freed together with the allocation. It is also used in <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as string in JSON format.">vmaBuildStatsString()</a>. </p>
<tr><td class="fieldname"><a id="ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520" name="ad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520"></a>VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT&#160;</td><td class="fielddoc"><p >Set this flag to treat <a class="el" href="struct_vma_allocation_create_info.html#a8259e85c272683434f4abb4ddddffe19" title="Custom general-purpose pointer that will be stored in VmaAllocation, can be read as VmaAllocationInfo...">VmaAllocationCreateInfo::pUserData</a> as pointer to a null-terminated string. Instead of copying pointer value, a local copy of the string is made and stored in allocation's <code>pUserData</code>. The string is automatically freed together with the allocation. It is also used in <a class="el" href="vk__mem__alloc_8h.html#aa4fee7eb5253377599ef4fd38c93c2a0" title="Builds and returns statistics as a null-terminated string in JSON format.">vmaBuildStatsString()</a>. </p>
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<tr><td class="fieldname"><a id="ad9889c10c798b040d59c92f257cae597a42ba3a2d2c7117953210b7c3ef8da0df" name="ad9889c10c798b040d59c92f257cae597a42ba3a2d2c7117953210b7c3ef8da0df"></a>VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT&#160;</td><td class="fielddoc"><p >Allocation will be created from upper stack in a double stack pool.</p>
<p >This flag is only allowed for custom pools created with <a class="el" href="vk__mem__alloc_8h.html#a9a7c45f9c863695d98c83fa5ac940fe7a13c8a444197c67866be9cb05599fc726" title="Enables alternative, linear allocation algorithm in this pool.">VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT</a> flag. </p>
@ -1270,11 +1412,9 @@ Functions</h2></td></tr>
<p >Specify this flag to enable linear allocation algorithm, which always creates new allocations after last one and doesn't reuse space from allocations freed in between. It trades memory consumption for simplified algorithm and data structure, which has better performance and uses less memory for metadata.</p>
<p >By using this flag, you can achieve behavior of free-at-once, stack, ring buffer, and double stack. For details, see documentation chapter <a class="el" href="custom_memory_pools.html#linear_algorithm">Linear allocation algorithm</a>.</p>
<p >When using this flag, you must specify <a class="el" href="struct_vma_pool_create_info.html#ae41142f2834fcdc82baa4883c187b75c" title="Maximum number of blocks that can be allocated in this pool. Optional.">VmaPoolCreateInfo::maxBlockCount</a> == 1 (or 0 for default). </p>
<p >For more details, see <a class="el" href="custom_memory_pools.html#linear_algorithm">Linear allocation algorithm</a>. </p>
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<tr><td class="fieldname"><a id="a9a7c45f9c863695d98c83fa5ac940fe7a97a0dc38e5161b780594d998d313d35e" name="a9a7c45f9c863695d98c83fa5ac940fe7a97a0dc38e5161b780594d998d313d35e"></a>VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT&#160;</td><td class="fielddoc"><p >Enables alternative, buddy allocation algorithm in this pool. </p>
<p >It operates on a tree of blocks, each having size that is a power of two and a half of its parent's size. Comparing to default algorithm, this one provides faster allocation and deallocation and decreased external fragmentation, at the expense of more memory wasted (internal fragmentation).</p>
<p >For more details, see <a class="el" href="custom_memory_pools.html#buddy_algorithm">Buddy allocation algorithm</a>. </p>
<p >It operates on a tree of blocks, each having size that is a power of two and a half of its parent's size. Comparing to default algorithm, this one provides faster allocation and deallocation and decreased external fragmentation, at the expense of more memory wasted (internal fragmentation). For details, see documentation chapter <a class="el" href="custom_memory_pools.html#buddy_algorithm">Buddy allocation algorithm</a>. </p>
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<tr><td class="fieldname"><a id="a9a7c45f9c863695d98c83fa5ac940fe7af4d270f8f42517a0f70037ceb6ac1d9c" name="a9a7c45f9c863695d98c83fa5ac940fe7af4d270f8f42517a0f70037ceb6ac1d9c"></a>VMA_POOL_CREATE_ALGORITHM_MASK&#160;</td><td class="fielddoc"><p >Bit mask to extract only <code>ALGORITHM</code> bits from entire set of flags. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2e9c64d405b14156fea7e10c4ad06cb6">&#9670;&nbsp;</a></span>VmaVirtualAllocationCreateFlagBits</h2>
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<td class="memname">enum <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6">VmaVirtualAllocationCreateFlagBits</a></td>
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<p>Flags to be passed as <a class="el" href="struct_vma_virtual_allocation_create_info.html#ab10e16956cc4bf20ced9de77d1129ea4" title="Use combination of VmaVirtualAllocationCreateFlagBits.">VmaVirtualAllocationCreateInfo::flags</a>. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a2e9c64d405b14156fea7e10c4ad06cb6a9524a329a55b5ec390d57d90b67ad78e" name="a2e9c64d405b14156fea7e10c4ad06cb6a9524a329a55b5ec390d57d90b67ad78e"></a>VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT&#160;</td><td class="fielddoc"><p >Allocation will be created from upper stack in a double stack pool. </p>
<p >This flag is only allowed for virtual blocks created with <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaae6423e2fa2f3c9211b21c819e3f10f96" title="Enables alternative, linear allocation algorithm in this virtual block.">VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT</a> flag. </p>
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<tr><td class="fieldname"><a id="a2e9c64d405b14156fea7e10c4ad06cb6ae2a9591a62b5e3b1bdcbc81c6188a1bf" name="a2e9c64d405b14156fea7e10c4ad06cb6ae2a9591a62b5e3b1bdcbc81c6188a1bf"></a>VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT&#160;</td><td class="fielddoc"><p >Allocation strategy that tries to minimize memory usage. </p>
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<tr><td class="fieldname"><a id="a2e9c64d405b14156fea7e10c4ad06cb6a562d10a46012719d33167d3dc5dbbf9b" name="a2e9c64d405b14156fea7e10c4ad06cb6a562d10a46012719d33167d3dc5dbbf9b"></a>VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT&#160;</td><td class="fielddoc"><p >Allocation strategy that tries to minimize allocation time. </p>
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<tr><td class="fieldname"><a id="a2e9c64d405b14156fea7e10c4ad06cb6a9aa0c32667ba2deaa9cdeac6149ec47a" name="a2e9c64d405b14156fea7e10c4ad06cb6a9aa0c32667ba2deaa9cdeac6149ec47a"></a>VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_FRAGMENTATION_BIT&#160;</td><td class="fielddoc"><p >Allocation strategy that tries to minimize memory fragmentation. </p>
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<tr><td class="fieldname"><a id="a2e9c64d405b14156fea7e10c4ad06cb6ac5b5e45c335368d18df59c9f27df17e3" name="a2e9c64d405b14156fea7e10c4ad06cb6ac5b5e45c335368d18df59c9f27df17e3"></a>VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK&#160;</td><td class="fielddoc"><p >A bit mask to extract only <code>STRATEGY</code> bits from entire set of flags. </p>
<p >These stategy flags are binary compatible with equivalent flags in <a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597" title="Flags to be passed as VmaAllocationCreateInfo::flags.">VmaAllocationCreateFlagBits</a>. </p>
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<tr><td class="fieldname"><a id="a2e9c64d405b14156fea7e10c4ad06cb6ac1163c03ea837fa663462dc286d6a1a9" name="a2e9c64d405b14156fea7e10c4ad06cb6ac1163c03ea837fa663462dc286d6a1a9"></a>VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM&#160;</td><td class="fielddoc"></td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a88bcf8c1cd3bb1610ff7343811c65bca">&#9670;&nbsp;</a></span>VmaVirtualBlockCreateFlagBits</h2>
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<td class="memname">enum <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca">VmaVirtualBlockCreateFlagBits</a></td>
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<p>Flags to be passed as <a class="el" href="struct_vma_virtual_block_create_info.html#a5838b15c053a0370420e4e1d82d09c09" title="Use combination of VmaVirtualBlockCreateFlagBits.">VmaVirtualBlockCreateInfo::flags</a>. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a88bcf8c1cd3bb1610ff7343811c65bcaae6423e2fa2f3c9211b21c819e3f10f96" name="a88bcf8c1cd3bb1610ff7343811c65bcaae6423e2fa2f3c9211b21c819e3f10f96"></a>VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT&#160;</td><td class="fielddoc"><p >Enables alternative, linear allocation algorithm in this virtual block. </p>
<p >Specify this flag to enable linear allocation algorithm, which always creates new allocations after last one and doesn't reuse space from allocations freed in between. It trades memory consumption for simplified algorithm and data structure, which has better performance and uses less memory for metadata.</p>
<p >By using this flag, you can achieve behavior of free-at-once, stack, ring buffer, and double stack. For details, see documentation chapter <a class="el" href="custom_memory_pools.html#linear_algorithm">Linear allocation algorithm</a>. </p>
</td></tr>
<tr><td class="fieldname"><a id="a88bcf8c1cd3bb1610ff7343811c65bcaa923116612509e26bf84982b9baf25c63" name="a88bcf8c1cd3bb1610ff7343811c65bcaa923116612509e26bf84982b9baf25c63"></a>VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT&#160;</td><td class="fielddoc"><p >Enables alternative, buddy allocation algorithm in this virtual block. </p>
<p >It operates on a tree of blocks, each having size that is a power of two and a half of its parent's size. Comparing to default algorithm, this one provides faster allocation and deallocation and decreased external fragmentation, at the expense of more memory wasted (internal fragmentation). For details, see documentation chapter <a class="el" href="custom_memory_pools.html#buddy_algorithm">Buddy allocation algorithm</a>. </p>
</td></tr>
<tr><td class="fieldname"><a id="a88bcf8c1cd3bb1610ff7343811c65bcaaf9487467136e1a9e371894dc3a7c4844" name="a88bcf8c1cd3bb1610ff7343811c65bcaaf9487467136e1a9e371894dc3a7c4844"></a>VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK&#160;</td><td class="fielddoc"><p >Bit mask to extract only <code>ALGORITHM</code> bits from entire set of flags. </p>
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<tr><td class="fieldname"><a id="a88bcf8c1cd3bb1610ff7343811c65bcaa5fc0d333c3d5687a8bbf57df9b377a87" name="a88bcf8c1cd3bb1610ff7343811c65bcaa5fc0d333c3d5687a8bbf57df9b377a87"></a>VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM&#160;</td><td class="fielddoc"></td></tr>
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</div>
<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a916e5291bb205e995aa87aee1d6dbbfc">&#9670;&nbsp;</a></span>VK_DEFINE_HANDLE()</h2>
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<td class="memname">VK_DEFINE_HANDLE </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"></td><td>)</td>
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<h2 class="memtitle"><span class="permalink"><a href="#abf28077dbf82d0908b8acbe8ee8dd9b8">&#9670;&nbsp;</a></span>vmaAllocateMemory()</h2>
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<p>Builds and returns statistics as string in JSON format. </p>
<p>Builds and returns statistics as a null-terminated string in JSON format. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir"></td><td class="paramname">allocator</td><td></td></tr>
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</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#a52d810e1222c592e5d80556ad005f1e6">&#9670;&nbsp;</a></span>vmaBuildVirtualBlockStatsString()</h2>
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<td class="memname">void vmaBuildVirtualBlockStatsString </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"><em>virtualBlock</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char **&#160;</td>
<td class="paramname"><em>ppStatsString</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">VkBool32&#160;</td>
<td class="paramname"><em>detailedMap</em>&#160;</td>
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<p>Builds and returns a null-terminated string in JSON format with information about given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir"></td><td class="paramname">virtualBlock</td><td>Virtual block. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">ppStatsString</td><td>Returned string. </td></tr>
<tr><td class="paramdir"></td><td class="paramname">detailedMap</td><td>Pass <code>VK_FALSE</code> to only obtain statistics as returned by <a class="el" href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a" title="Calculates and returns statistics about virtual allocations and memory usage in given VmaVirtualBlock...">vmaCalculateVirtualBlockStats()</a>. Pass <code>VK_TRUE</code> to also obtain full list of allocations and free spaces.</td></tr>
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</dd>
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<p>Returned string must be freed using <a class="el" href="vk__mem__alloc_8h.html#a47fb8d8aa69df4a7c23a9719b4080623" title="Frees a string returned by vmaBuildVirtualBlockStatsString().">vmaFreeVirtualBlockStatsString()</a>. </p>
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<p >This function is called "calculate" not "get" because it has to traverse all internal data structures, so it may be quite slow. For faster but more brief statistics suitable to be called every frame or every allocation, use <a class="el" href="vk__mem__alloc_8h.html#aec0ed24ebea2d0099eed5f801daaefba" title="Retrieves information about current memory budget for all memory heaps.">vmaGetBudget()</a>.</p>
<p >Note that when using allocator from multiple threads, returned information may immediately become outdated. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a95169b4730e94757897470086ec2768a">&#9670;&nbsp;</a></span>vmaCalculateVirtualBlockStats()</h2>
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<td class="memname">void vmaCalculateVirtualBlockStats </td>
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<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"><em>virtualBlock</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_vma_stat_info.html">VmaStatInfo</a> *&#160;</td>
<td class="paramname"><em>pStatInfo</em>&#160;</td>
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<p>Calculates and returns statistics about virtual allocations and memory usage in given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. </p>
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<li>Other value: Error returned by Vulkan, e.g. memory mapping failure. </li>
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<h2 class="memtitle"><span class="permalink"><a href="#a5eda6f55919fb05bd2f56a112590c571">&#9670;&nbsp;</a></span>vmaClearVirtualBlock()</h2>
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<td class="memname">void vmaClearVirtualBlock </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"><em>virtualBlock</em></td><td>)</td>
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<p>Frees all virtual allocations inside given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. </p>
<p >You must either call this function or free each virtual allocation individually with <a class="el" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639" title="Frees virtual allocation inside given VmaVirtualBlock.">vmaVirtualFree()</a> before destroying a virtual block. Otherwise, an assert is called.</p>
<p >If you keep pointer to some additional metadata associated with your virtual allocation in its <code>pUserData</code>, don't forget to free it as well. </p>
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</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#ab585754076877265fdae33e5c40ef13b">&#9670;&nbsp;</a></span>vmaCreateVirtualBlock()</h2>
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<td class="memname">VkResult vmaCreateVirtualBlock </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a> *&#160;</td>
<td class="paramname"><em>pCreateInfo</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> *&#160;</td>
<td class="paramname"><em>pVirtualBlock</em>&#160;</td>
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<p>Creates new <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir"></td><td class="paramname">pCreateInfo</td><td>Parameters for creation. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pVirtualBlock</td><td>Returned virtual block object or <code>VMA_NULL</code> if creation failed. </td></tr>
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<p>Destroys <a class="el" href="struct_vma_pool.html" title="Represents custom memory pool.">VmaPool</a> object and frees Vulkan device memory. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a3795f7783ae2c182cede067d656f66a5">&#9670;&nbsp;</a></span>vmaDestroyVirtualBlock()</h2>
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<td class="memname">void vmaDestroyVirtualBlock </td>
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<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"><em>virtualBlock</em></td><td>)</td>
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<p>Destroys <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object. </p>
<p >Please note that you should consciously handle virtual allocations that could remain unfreed in the block. You should either free them individually using <a class="el" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639" title="Frees virtual allocation inside given VmaVirtualBlock.">vmaVirtualFree()</a> or call <a class="el" href="vk__mem__alloc_8h.html#a5eda6f55919fb05bd2f56a112590c571" title="Frees all virtual allocations inside given VmaVirtualBlock.">vmaClearVirtualBlock()</a> if you are sure this is what you want. If you do neither, an assert is called.</p>
<p >If you keep pointers to some additional metadata associated with your virtual allocations in their <code>pUserData</code>, don't forget to free them. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a47fb8d8aa69df4a7c23a9719b4080623">&#9670;&nbsp;</a></span>vmaFreeVirtualBlockStatsString()</h2>
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<td class="memname">void vmaFreeVirtualBlockStatsString </td>
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<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"><em>virtualBlock</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>pStatsString</em>&#160;</td>
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<p>Frees a string returned by <a class="el" href="vk__mem__alloc_8h.html#a52d810e1222c592e5d80556ad005f1e6" title="Builds and returns a null-terminated string in JSON format with information about given VmaVirtualBlo...">vmaBuildVirtualBlockStatsString()</a>. </p>
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</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#ab5fcb961ffea69023e7e0ea100bdad8e">&#9670;&nbsp;</a></span>vmaGetVirtualAllocationInfo()</h2>
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<td class="memname">void vmaGetVirtualAllocationInfo </td>
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<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"><em>virtualBlock</em>, </td>
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<td></td>
<td class="paramtype">VkDeviceSize&#160;</td>
<td class="paramname"><em>offset</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a> *&#160;</td>
<td class="paramname"><em>pVirtualAllocInfo</em>&#160;</td>
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<p>Returns information about a specific virtual allocation within a virtual block, like its size and <code>pUserData</code> pointer. </p>
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<p>This function returns the <code>VkResult</code> from <code>vkInvalidateMappedMemoryRanges</code> if it is called, otherwise <code>VK_SUCCESS</code>. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#acd53b5b1d23f8fcbad692ccfdc1811f1">&#9670;&nbsp;</a></span>vmaIsVirtualBlockEmpty()</h2>
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<td class="memname">VkBool32 vmaIsVirtualBlockEmpty </td>
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<p>Returns true of the <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> is empty - contains 0 virtual allocations and has all its space available for new allocations. </p>
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<p>Sets name of a custom pool. </p>
<p ><code>pName</code> can be either null or pointer to a null-terminated string with new name for the pool. Function makes internal copy of the string, so it can be changed or freed immediately after this call. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4b96f835d38686df937e097a0c7db5e9">&#9670;&nbsp;</a></span>vmaSetVirtualAllocationUserData()</h2>
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<td class="memname">void vmaSetVirtualAllocationUserData </td>
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<p>Changes custom pointer associated with given virtual allocation. </p>
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@ -3567,6 +4062,74 @@ Functions</h2></td></tr>
<p >For details, see description of <a class="el" href="vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069" title="Maps memory represented by given allocation and returns pointer to it.">vmaMapMemory()</a>.</p>
<p >This function doesn't automatically flush or invalidate caches. If the allocation is made from a memory types that is not <code>HOST_COHERENT</code>, you also need to use <a class="el" href="vk__mem__alloc_8h.html#aaa8412919139ef413a4215ac6a290fae" title="Invalidates memory of given allocation.">vmaInvalidateAllocation()</a> / <a class="el" href="vk__mem__alloc_8h.html#a30c37c1eec6025f397be41644f48490f" title="Flushes memory of given allocation.">vmaFlushAllocation()</a>, as required by Vulkan specification. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a1c15925e6745dacee0cfc877fffecec2">&#9670;&nbsp;</a></span>vmaVirtualAllocate()</h2>
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<td class="memname">VkResult vmaVirtualAllocate </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"><em>virtualBlock</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a> *&#160;</td>
<td class="paramname"><em>pCreateInfo</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">VkDeviceSize *&#160;</td>
<td class="paramname"><em>pOffset</em>&#160;</td>
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<td>)</td>
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<p>Allocates new virtual allocation inside given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. </p>
<p >There is no handle type for a virtual allocation. Virtual allocations within a specific virtual block are uniquely identified by their offsets.</p>
<p >If the allocation fails due to not enough free space available, <code>VK_ERROR_OUT_OF_DEVICE_MEMORY</code> is returned (despite the function doesn't ever allocate actual GPU memory). </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a13f01c44b3c1a06e695f1f5d24b80639">&#9670;&nbsp;</a></span>vmaVirtualFree()</h2>
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<td class="memname">void vmaVirtualFree </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_vma_virtual_block.html">VmaVirtualBlock</a>&#160;</td>
<td class="paramname"><em>virtualBlock</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">VkDeviceSize&#160;</td>
<td class="paramname"><em>offset</em>&#160;</td>
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<p>Frees virtual allocation inside given <a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a>. </p>
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2
docs/html/vk_khr_dedicated_allocation.html
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@ -82,7 +82,7 @@ $(function() {
<div class="line"> </div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a200692051ddb34240248234f5f4c17bb">vmaCreateAllocator</a>(&amp;allocatorInfo, &amp;allocator);</div>
<div class="ttc" id="avk__mem__alloc_8h_html_a200692051ddb34240248234f5f4c17bb"><div class="ttname"><a href="vk__mem__alloc_8h.html#a200692051ddb34240248234f5f4c17bb">vmaCreateAllocator</a></div><div class="ttdeci">VkResult vmaCreateAllocator(const VmaAllocatorCreateInfo *pCreateInfo, VmaAllocator *pAllocator)</div><div class="ttdoc">Creates Allocator object.</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a4f87c9100d154a65a4ad495f7763cf7cace7da7cc6e71a625dfa763c55a597878"><div class="ttname"><a href="vk__mem__alloc_8h.html#a4f87c9100d154a65a4ad495f7763cf7cace7da7cc6e71a625dfa763c55a597878">VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT</div><div class="ttdoc">Enables usage of VK_KHR_dedicated_allocation extension.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:354</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a4f87c9100d154a65a4ad495f7763cf7cace7da7cc6e71a625dfa763c55a597878"><div class="ttname"><a href="vk__mem__alloc_8h.html#a4f87c9100d154a65a4ad495f7763cf7cace7da7cc6e71a625dfa763c55a597878">VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT</div><div class="ttdoc">Enables usage of VK_KHR_dedicated_allocation extension.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:355</div></div>
</div><!-- fragment --><p >That is all. The extension will be automatically used whenever you create a buffer using <a class="el" href="vk__mem__alloc_8h.html#ac72ee55598617e8eecca384e746bab51">vmaCreateBuffer()</a> or image using <a class="el" href="vk__mem__alloc_8h.html#a02a94f25679275851a53e82eacbcfc73" title="Function similar to vmaCreateBuffer().">vmaCreateImage()</a>.</p>
<p >When using the extension together with Vulkan Validation Layer, you will receive warnings like this: </p><pre class="fragment">vkBindBufferMemory(): Binding memory to buffer 0x33 but vkGetBufferMemoryRequirements() has not been called on that buffer.
</pre><p> It is OK, you should just ignore it. It happens because you use function <code>vkGetBufferMemoryRequirements2KHR()</code> instead of standard <code>vkGetBufferMemoryRequirements()</code>, while the validation layer seems to be unaware of it.</p>

1753
include/vk_mem_alloc.h
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297
src/Tests.cpp
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@ -31,6 +31,7 @@
#ifdef _WIN32
static const char* CODE_DESCRIPTION = "Foo";
static constexpr VkDeviceSize MEGABYTE = 1024 * 1024;
extern VkCommandBuffer g_hTemporaryCommandBuffer;
extern const VkAllocationCallbacks* g_Allocs;
@ -2528,7 +2529,7 @@ static void TestInvalidAllocations()
memReq.memoryTypeBits = UINT32_MAX;
VmaAllocation alloc = VK_NULL_HANDLE;
res = vmaAllocateMemory(g_hAllocator, &memReq, &allocCreateInfo, &alloc, nullptr);
TEST(res == VK_ERROR_VALIDATION_FAILED_EXT && alloc == VK_NULL_HANDLE);
TEST(res == VK_ERROR_INITIALIZATION_FAILED && alloc == VK_NULL_HANDLE);
}
// Try to create buffer with size = 0.
@ -2539,7 +2540,7 @@ static void TestInvalidAllocations()
VkBuffer buf = VK_NULL_HANDLE;
VmaAllocation alloc = VK_NULL_HANDLE;
res = vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, nullptr);
TEST(res == VK_ERROR_VALIDATION_FAILED_EXT && buf == VK_NULL_HANDLE && alloc == VK_NULL_HANDLE);
TEST(res == VK_ERROR_INITIALIZATION_FAILED && buf == VK_NULL_HANDLE && alloc == VK_NULL_HANDLE);
}
// Try to create image with one dimension = 0.
@ -2559,7 +2560,7 @@ static void TestInvalidAllocations()
VkImage image = VK_NULL_HANDLE;
VmaAllocation alloc = VK_NULL_HANDLE;
res = vmaCreateImage(g_hAllocator, &imageCreateInfo, &allocCreateInfo, &image, &alloc, nullptr);
TEST(res == VK_ERROR_VALIDATION_FAILED_EXT && image == VK_NULL_HANDLE && alloc == VK_NULL_HANDLE);
TEST(res == VK_ERROR_INITIALIZATION_FAILED && image == VK_NULL_HANDLE && alloc == VK_NULL_HANDLE);
}
}
@ -2686,6 +2687,292 @@ static void TestBasics()
TestInvalidAllocations();
}
static void TestVirtualBlocks()
{
wprintf(L"Test virtual blocks\n");
const VkDeviceSize blockSize = 16 * MEGABYTE;
const VkDeviceSize alignment = 256;
// # Create block 16 MB
VmaVirtualBlockCreateInfo blockCreateInfo = {};
blockCreateInfo.pAllocationCallbacks = g_Allocs;
blockCreateInfo.size = blockSize;
VmaVirtualBlock block;
TEST(vmaCreateVirtualBlock(&blockCreateInfo, &block) == VK_SUCCESS && block);
// # Allocate 8 MB
VmaVirtualAllocationCreateInfo allocCreateInfo = {};
allocCreateInfo.alignment = alignment;
allocCreateInfo.pUserData = (void*)(uintptr_t)1;
allocCreateInfo.size = 8 * MEGABYTE;
VkDeviceSize alloc0Offset;
TEST(vmaVirtualAllocate(block, &allocCreateInfo, &alloc0Offset) == VK_SUCCESS);
TEST(alloc0Offset < blockSize);
// # Validate the allocation
VmaVirtualAllocationInfo allocInfo = {};
vmaGetVirtualAllocationInfo(block, alloc0Offset, &allocInfo);
TEST(allocInfo.size == allocCreateInfo.size);
TEST(allocInfo.pUserData = allocCreateInfo.pUserData);
// # Check SetUserData
vmaSetVirtualAllocationUserData(block, alloc0Offset, (void*)(uintptr_t)2);
vmaGetVirtualAllocationInfo(block, alloc0Offset, &allocInfo);
TEST(allocInfo.pUserData = (void*)(uintptr_t)2);
// # Allocate 4 MB
allocCreateInfo.size = 4 * MEGABYTE;
UINT64 alloc1Offset;
TEST(vmaVirtualAllocate(block, &allocCreateInfo, &alloc1Offset) == VK_SUCCESS);
TEST(alloc1Offset < blockSize);
TEST(alloc1Offset + 4 * MEGABYTE <= alloc0Offset || alloc0Offset + 8 * MEGABYTE <= alloc1Offset); // Check if they don't overlap.
// # Allocate another 8 MB - it should fail
allocCreateInfo.size = 8 * MEGABYTE;
UINT64 alloc2Offset;
TEST(vmaVirtualAllocate(block, &allocCreateInfo, &alloc2Offset) < 0);
TEST(alloc2Offset == VK_WHOLE_SIZE);
// # Free the 4 MB block. Now allocation of 8 MB should succeed.
vmaVirtualFree(block, alloc1Offset);
TEST(vmaVirtualAllocate(block, &allocCreateInfo, &alloc2Offset) == VK_SUCCESS);
TEST(alloc2Offset < blockSize);
TEST(alloc2Offset + 4 * MEGABYTE <= alloc0Offset || alloc0Offset + 8 * MEGABYTE <= alloc2Offset); // Check if they don't overlap.
// # Calculate statistics
VmaStatInfo statInfo = {};
vmaCalculateVirtualBlockStats(block, &statInfo);
TEST(statInfo.allocationCount == 2);
TEST(statInfo.blockCount == 1);
TEST(statInfo.usedBytes == blockSize);
TEST(statInfo.unusedBytes + statInfo.usedBytes == blockSize);
// # Generate JSON dump
char* json = nullptr;
vmaBuildVirtualBlockStatsString(block, &json, VK_TRUE);
{
std::string str(json);
TEST( str.find("\"UserData\": \"0000000000000001\"") != std::string::npos );
TEST( str.find("\"UserData\": \"0000000000000002\"") != std::string::npos );
}
vmaFreeVirtualBlockStatsString(block, json);
// # Free alloc0, leave alloc2 unfreed.
vmaVirtualFree(block, alloc0Offset);
// # Test alignment
{
constexpr size_t allocCount = 10;
VkDeviceSize allocOffset[allocCount] = {};
for(size_t i = 0; i < allocCount; ++i)
{
const bool alignment0 = i == allocCount - 1;
allocCreateInfo.size = i * 3 + 15;
allocCreateInfo.alignment = alignment0 ? 0 : 8;
TEST(vmaVirtualAllocate(block, &allocCreateInfo, &allocOffset[i]) == VK_SUCCESS);
if(!alignment0)
{
TEST(allocOffset[i] % allocCreateInfo.alignment == 0);
}
}
for(size_t i = allocCount; i--; )
{
vmaVirtualFree(block, allocOffset[i]);
}
}
// # Final cleanup
vmaVirtualFree(block, alloc2Offset);
vmaDestroyVirtualBlock(block);
{
// Another virtual block, using Clear this time.
TEST(vmaCreateVirtualBlock(&blockCreateInfo, &block) == VK_SUCCESS);
allocCreateInfo = VmaVirtualAllocationCreateInfo{};
allocCreateInfo.size = MEGABYTE;
for(size_t i = 0; i < 8; ++i)
{
VkDeviceSize offset = 0;
TEST(vmaVirtualAllocate(block, &allocCreateInfo, &offset) == VK_SUCCESS);
}
vmaClearVirtualBlock(block);
vmaDestroyVirtualBlock(block);
}
}
static void TestVirtualBlocksAlgorithms()
{
wprintf(L"Test virtual blocks algorithms\n");
RandomNumberGenerator rand{3454335};
auto calcRandomAllocSize = [&rand]() -> VkDeviceSize { return rand.Generate() % 20 + 5; };
for(size_t algorithmIndex = 0; algorithmIndex < 3; ++algorithmIndex)
{
// Create the block
VmaVirtualBlockCreateInfo blockCreateInfo = {};
blockCreateInfo.pAllocationCallbacks = g_Allocs;
blockCreateInfo.size = 10'000;
switch(algorithmIndex)
{
case 1: blockCreateInfo.flags = VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT; break;
case 2: blockCreateInfo.flags = VMA_VIRTUAL_BLOCK_CREATE_BUDDY_ALGORITHM_BIT; break;
}
VmaVirtualBlock block = nullptr;
VkResult res = vmaCreateVirtualBlock(&blockCreateInfo, &block);
TEST(res == VK_SUCCESS);
struct AllocData
{
VkDeviceSize offset, requestedSize, allocationSize;
};
std::vector<AllocData> allocations;
// Make some allocations
for(size_t i = 0; i < 20; ++i)
{
VmaVirtualAllocationCreateInfo allocCreateInfo = {};
allocCreateInfo.size = calcRandomAllocSize();
allocCreateInfo.pUserData = (void*)(uintptr_t)(allocCreateInfo.size * 10);
if(i < 10) { }
else if(i < 12) allocCreateInfo.flags = VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT;
else if(i < 14) allocCreateInfo.flags = VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT;
else if(i < 16) allocCreateInfo.flags = VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_FRAGMENTATION_BIT;
else if(i < 18 && algorithmIndex == 1) allocCreateInfo.flags = VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT;
AllocData alloc = {};
alloc.requestedSize = allocCreateInfo.size;
res = vmaVirtualAllocate(block, &allocCreateInfo, &alloc.offset);
TEST(res == VK_SUCCESS);
VmaVirtualAllocationInfo allocInfo;
vmaGetVirtualAllocationInfo(block, alloc.offset, &allocInfo);
TEST(allocInfo.size >= allocCreateInfo.size);
alloc.allocationSize = allocInfo.size;
allocations.push_back(alloc);
}
// Free some of the allocations
for(size_t i = 0; i < 5; ++i)
{
const size_t index = rand.Generate() % allocations.size();
vmaVirtualFree(block, allocations[index].offset);
allocations.erase(allocations.begin() + index);
}
// Allocate some more
for(size_t i = 0; i < 6; ++i)
{
VmaVirtualAllocationCreateInfo allocCreateInfo = {};
allocCreateInfo.size = calcRandomAllocSize();
allocCreateInfo.pUserData = (void*)(uintptr_t)(allocCreateInfo.size * 10);
AllocData alloc = {};
alloc.requestedSize = allocCreateInfo.size;
res = vmaVirtualAllocate(block, &allocCreateInfo, &alloc.offset);
TEST(res == VK_SUCCESS);
VmaVirtualAllocationInfo allocInfo;
vmaGetVirtualAllocationInfo(block, alloc.offset, &allocInfo);
TEST(allocInfo.size >= allocCreateInfo.size);
alloc.allocationSize = allocInfo.size;
allocations.push_back(alloc);
}
// Allocate some with extra alignment
for(size_t i = 0; i < 3; ++i)
{
VmaVirtualAllocationCreateInfo allocCreateInfo = {};
allocCreateInfo.size = calcRandomAllocSize();
allocCreateInfo.alignment = 16;
allocCreateInfo.pUserData = (void*)(uintptr_t)(allocCreateInfo.size * 10);
AllocData alloc = {};
alloc.requestedSize = allocCreateInfo.size;
res = vmaVirtualAllocate(block, &allocCreateInfo, &alloc.offset);
TEST(res == VK_SUCCESS);
TEST(alloc.offset % 16 == 0);
VmaVirtualAllocationInfo allocInfo;
vmaGetVirtualAllocationInfo(block, alloc.offset, &allocInfo);
TEST(allocInfo.size >= allocCreateInfo.size);
alloc.allocationSize = allocInfo.size;
allocations.push_back(alloc);
}
// Check if the allocations don't overlap
std::sort(allocations.begin(), allocations.end(), [](const AllocData& lhs, const AllocData& rhs) {
return lhs.offset < rhs.offset; });
for(size_t i = 0; i < allocations.size() - 1; ++i)
{
TEST(allocations[i+1].offset >= allocations[i].offset + allocations[i].allocationSize);
}
// Check pUserData
{
const AllocData& alloc = allocations.back();
VmaVirtualAllocationInfo allocInfo = {};
vmaGetVirtualAllocationInfo(block, alloc.offset, &allocInfo);
TEST((uintptr_t)allocInfo.pUserData == alloc.requestedSize * 10);
vmaSetVirtualAllocationUserData(block, alloc.offset, (void*)(uintptr_t)666);
vmaGetVirtualAllocationInfo(block, alloc.offset, &allocInfo);
TEST((uintptr_t)allocInfo.pUserData == 666);
}
// Calculate statistics
{
VkDeviceSize actualAllocSizeMin = VK_WHOLE_SIZE, actualAllocSizeMax = 0, actualAllocSizeSum = 0;
std::for_each(allocations.begin(), allocations.end(), [&](const AllocData& a) {
actualAllocSizeMin = std::min(actualAllocSizeMin, a.allocationSize);
actualAllocSizeMax = std::max(actualAllocSizeMax, a.allocationSize);
actualAllocSizeSum += a.allocationSize;
});
VmaStatInfo statInfo = {};
vmaCalculateVirtualBlockStats(block, &statInfo);
TEST(statInfo.allocationCount == allocations.size());
TEST(statInfo.blockCount == 1);
TEST(statInfo.usedBytes + statInfo.unusedBytes == blockCreateInfo.size);
TEST(statInfo.allocationSizeMax == actualAllocSizeMax);
TEST(statInfo.allocationSizeMin == actualAllocSizeMin);
TEST(statInfo.usedBytes >= actualAllocSizeSum);
}
// Build JSON dump string
{
char* json = nullptr;
vmaBuildVirtualBlockStatsString(block, &json, VK_TRUE);
int I = 0; // put a breakpoint here to debug
vmaFreeVirtualBlockStatsString(block, json);
}
// Final cleanup
vmaClearVirtualBlock(block);
vmaDestroyVirtualBlock(block);
}
}
static void TestAllocationVersusResourceSize()
{
wprintf(L"Test allocation versus resource size\n");
@ -6565,12 +6852,16 @@ void Test()
{
////////////////////////////////////////////////////////////////////////////////
// Temporarily insert custom tests here:
TestVirtualBlocks();
TestVirtualBlocksAlgorithms();
return;
}
// # Simple tests
TestBasics();
TestVirtualBlocks();
TestVirtualBlocksAlgorithms();
TestAllocationVersusResourceSize();
//TestGpuData(); // Not calling this because it's just testing the testing environment.
#if VMA_DEBUG_MARGIN