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Added usage of vkGetDeviceBufferMemoryRequirements, vkGetDeviceImageMemoryRequirements from Vulkan 1.3

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Used inside vmaFindMemoryTypeIndexForBufferInfo, vmaFindMemoryTypeIndexForImageInfo when available.
Added these 2 functions to VmaVulkanFunctions structure.
Regenerated the docs.
This commit is contained in:
Adam Sawicki 2022-02-17 17:34:48 +01:00
parent e0fcd7344e
commit 3fd264ae1d
17 changed files with 388 additions and 269 deletions
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@ -2281,7 +2281,7 @@ PREDEFINED = VMA_CALL_PRE= \
VMA_LEN_IF_NOT_NULL(len)= \
VMA_NOT_NULL_NON_DISPATCHABLE= \
VMA_NULLABLE_NON_DISPATCHABLE= \
VMA_VULKAN_VERSION=1002000 \
VMA_VULKAN_VERSION=1003000 \
VMA_EXTERNAL_MEMORY=1 \
VMA_MEMORY_PRIORITY=1

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@ -85,17 +85,17 @@ Allocation user data</h1>
<div class="line"><a class="code hl_function" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufCreateInfo, &amp;allocCreateInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="agroup__group__alloc_html_gac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">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="agroup__group__alloc_html_ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e"><div class="ttname"><a href="group__group__alloc.html#ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e">VMA_MEMORY_USAGE_AUTO</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_AUTO</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:492</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:1168</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:1207</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:1176</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:1174</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:1213</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:1182</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><!-- 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="group__group__alloc.html#ga86dd08aba8633bfa4ad0df2e76481d8b">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="agroup__group__alloc_html_ga86dd08aba8633bfa4ad0df2e76481d8b"><div class="ttname"><a href="group__group__alloc.html#ga86dd08aba8633bfa4ad0df2e76481d8b">vmaGetAllocationInfo</a></div><div class="ttdeci">void vmaGetAllocationInfo(VmaAllocator allocator, VmaAllocation allocation, VmaAllocationInfo *pAllocationInfo)</div><div class="ttdoc">Returns current information about specified 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:1310</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:1357</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:1316</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:1363</div></div>
</div><!-- fragment --><p >It can also be changed using function <a class="el" href="group__group__alloc.html#gaf9147d31ffc11d62fc187bde283ed14f" 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="group__group__stats.html#gaa4fee7eb5253377599ef4fd38c93c2a0" 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>
@ -116,7 +116,7 @@ Allocation names</h1>
<div class="line"><a class="code hl_function" href="group__group__alloc.html#ga02a94f25679275851a53e82eacbcfc73">vmaCreateImage</a>(allocator, &amp;imageInfo, &amp;allocCreateInfo, &amp;image, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="agroup__group__alloc_html_ga02a94f25679275851a53e82eacbcfc73"><div class="ttname"><a href="group__group__alloc.html#ga02a94f25679275851a53e82eacbcfc73">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="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597aa6f24f821cd6a7c5e4a443f7bf59c520">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:560</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:1170</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:1176</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="group__group__alloc.html#ga86dd08aba8633bfa4ad0df2e76481d8b">vmaGetAllocationInfo</a>(allocator, allocation, &amp;allocInfo);</div>

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@ -95,8 +95,8 @@ Usage</h1>
<div class="line"><a class="code hl_function" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufferInfo, &amp;allocInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="agroup__group__alloc_html_gac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">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="agroup__group__alloc_html_ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e"><div class="ttname"><a href="group__group__alloc.html#ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e">VMA_MEMORY_USAGE_AUTO</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_AUTO</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:492</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:1168</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:1176</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:1174</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:1182</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><!-- fragment --><p >If you have a preference for putting the resource in GPU (device) memory or CPU (host) memory on systems with discrete graphics card that have the memories separate, you can use <a class="el" href="group__group__alloc.html#ggaa5846affa1e9da3800e3e78fae2305ccae2adb696d6a73c18bb20c23666661327">VMA_MEMORY_USAGE_AUTO_PREFER_DEVICE</a> or <a class="el" href="group__group__alloc.html#ggaa5846affa1e9da3800e3e78fae2305cca9b422585242160b8ed3418310ee6664d">VMA_MEMORY_USAGE_AUTO_PREFER_HOST</a>.</p>
<p >When using <code>VMA_MEMORY_USAGE_AUTO*</code> while you want to map the allocated memory, you also need to specify one of the host access flags: <a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a9be224df3bfc1cfa06203aed689a30c5">VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT</a> or <a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597add61238d98e20917b9a06c617763f492">VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT</a>. This will help the library decide about preferred memory type to ensure it has <code>VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT</code> so you can map it.</p>
@ -113,7 +113,7 @@ Usage</h1>
<div class="line"><a class="code hl_struct" href="struct_vma_allocation.html">VmaAllocation</a> stagingAllocation;</div>
<div class="line"><a class="code hl_function" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;stagingBufferInfo, &amp;stagingAllocInfo, &amp;stagingBuffer, &amp;stagingAllocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597a9be224df3bfc1cfa06203aed689a30c5"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a9be224df3bfc1cfa06203aed689a30c5">VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:597</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:1170</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:1176</div></div>
</div><!-- fragment --><p >For more examples of creating different kinds of resources, see chapter <a class="el" href="usage_patterns.html">Recommended usage patterns</a>.</p>
<p >Usage values <code>VMA_MEMORY_USAGE_AUTO*</code> are legal to use only when the library knows about the resource being created by having <code>VkBufferCreateInfo</code> / <code>VkImageCreateInfo</code> passed, so they work with functions like: <a class="el" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vmaCreateBuffer()</a>, <a class="el" href="group__group__alloc.html#ga02a94f25679275851a53e82eacbcfc73" title="Function similar to vmaCreateBuffer().">vmaCreateImage()</a>, <a class="el" href="group__group__alloc.html#gae790ab9ffaf7667fb8f62523e6897888" title="Helps to find memoryTypeIndex, given VkBufferCreateInfo and VmaAllocationCreateInfo.">vmaFindMemoryTypeIndexForBufferInfo()</a> etc. If you allocate raw memory using function <a class="el" href="group__group__alloc.html#gabf28077dbf82d0908b8acbe8ee8dd9b8" title="General purpose memory allocation.">vmaAllocateMemory()</a>, you have to use other means of selecting memory type, as decribed below.</p>
<dl class="section note"><dt>Note</dt><dd>Old usage values (<code>VMA_MEMORY_USAGE_GPU_ONLY</code>, <code>VMA_MEMORY_USAGE_CPU_ONLY</code>, <code>VMA_MEMORY_USAGE_CPU_TO_GPU</code>, <code>VMA_MEMORY_USAGE_GPU_TO_CPU</code>, <code>VMA_MEMORY_USAGE_CPU_COPY</code>) are still available and work same way as in previous versions of the library for backward compatibility, but they are not recommended.</dd></dl>
@ -130,8 +130,8 @@ Required and preferred flags</h1>
<div class="line"><a class="code hl_function" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufferInfo, &amp;allocInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f">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:550</div></div>
<div class="ttc" id="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597add61238d98e20917b9a06c617763f492"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597add61238d98e20917b9a06c617763f492">VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:609</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:1186</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:1181</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:1192</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:1187</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 >Value passed in <a class="el" href="struct_vma_allocation_create_info.html#accb8b06b1f677d858cb9af20705fa910" title="Intended usage of memory.">VmaAllocationCreateInfo::usage</a> is internally converted to a set of required and preferred flags, plus some extra "magic" (heuristics).</p>
<h1><a class="anchor" id="choosing_memory_type_explicit_memory_types"></a>
@ -146,7 +146,7 @@ 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="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">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:1194</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:1200</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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@ -109,13 +109,13 @@ $(function() {
<div class="line"><a class="code hl_function" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufCreateInfo, &amp;allocCreateInfo, &amp;buf, &amp;alloc, &amp;allocInfo);</div>
<div class="ttc" id="agroup__group__alloc_html_ga5c8770ded7c59c8caac6de0c2cb00b50"><div class="ttname"><a href="group__group__alloc.html#ga5c8770ded7c59c8caac6de0c2cb00b50">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="agroup__group__alloc_html_gac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">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="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:1168</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:1200</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:1174</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:1206</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:1310</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:1219</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:1222</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:1248</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:1316</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:1225</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:1228</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:1254</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><!-- fragment --><p >You have to free all allocations made from this pool before destroying it.</p>
<div class="fragment"><div class="line"><a class="code hl_function" href="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77">vmaDestroyBuffer</a>(allocator, buf, alloc);</div>
@ -142,7 +142,7 @@ Choosing memory type index</h1>
<div class="line"><span class="comment">// ...</span></div>
<div class="ttc" id="agroup__group__alloc_html_gae790ab9ffaf7667fb8f62523e6897888"><div class="ttname"><a href="group__group__alloc.html#gae790ab9ffaf7667fb8f62523e6897888">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 class="ttc" id="agroup__group__alloc_html_ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e"><div class="ttname"><a href="group__group__alloc.html#ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e">VMA_MEMORY_USAGE_AUTO</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_AUTO</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:492</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:1176</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:1182</div></div>
</div><!-- fragment --><p >When creating buffers/images allocated in that pool, provide following parameters:</p>
<ul>
<li><code>VkBufferCreateInfo</code>: Prefer to pass same parameters as above. Otherwise you risk creating resources in a memory type that is not suitable for them, which may result in undefined behavior. Using different <code>VK_BUFFER_USAGE_</code> flags may work, but you shouldn't create images in a pool intended for buffers or the other way around.</li>

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@ -133,15 +133,15 @@ Defragmenting CPU memory</h1>
<div class="ttc" id="agroup__group__alloc_html_ga6b0929b914b60cf2d45cac4bf3547470"><div class="ttname"><a href="group__group__alloc.html#ga6b0929b914b60cf2d45cac4bf3547470">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="agroup__group__alloc_html_ga86dd08aba8633bfa4ad0df2e76481d8b"><div class="ttname"><a href="group__group__alloc.html#ga86dd08aba8633bfa4ad0df2e76481d8b">vmaGetAllocationInfo</a></div><div class="ttdeci">void vmaGetAllocationInfo(VmaAllocator allocator, VmaAllocation allocation, VmaAllocationInfo *pAllocationInfo)</div><div class="ttdoc">Returns current information about specified allocation.</div></div>
<div class="ttc" id="agroup__group__alloc_html_ga8774e20e91e245aae959ba63efa15dd2"><div class="ttname"><a href="group__group__alloc.html#ga8774e20e91e245aae959ba63efa15dd2">vmaDefragmentationEnd</a></div><div class="ttdeci">VkResult vmaDefragmentationEnd(VmaAllocator allocator, VmaDefragmentationContext context)</div><div class="ttdoc">Ends defragmentation process.</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:1310</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:1316</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:1365</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:1371</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:1385</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:1414</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:1379</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:1409</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:1371</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:1377</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:1391</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:1420</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:1385</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:1415</div></div>
</div><!-- fragment --><p >Setting <a class="el" href="struct_vma_defragmentation_info2.html#a76d51a644dc7f5405d0cdd0025ecd0cc" title="Optional, output. Pointer to array that will be filled with information whether the allocation at cer...">VmaDefragmentationInfo2::pAllocationsChanged</a> is optional. This output array tells whether particular allocation in <a class="el" href="struct_vma_defragmentation_info2.html#ab6d288f29d028156cf73542d630a2e32" title="Pointer to array of allocations that can be defragmented.">VmaDefragmentationInfo2::pAllocations</a> at the same index has been modified during defragmentation. You can pass null, but you then need to query every allocation passed to defragmentation for new parameters using <a class="el" href="group__group__alloc.html#ga86dd08aba8633bfa4ad0df2e76481d8b" title="Returns current information about specified allocation.">vmaGetAllocationInfo()</a> if you might need to recreate and rebind a buffer or image associated with it.</p>
<p >If you use <a class="el" href="choosing_memory_type.html#choosing_memory_type_custom_memory_pools">Custom memory pools</a>, you can fill <a class="el" href="struct_vma_defragmentation_info2.html#a7e70aa2a1081d849dcc7829b19d3ec9d" title="Numer of pools in pPools array.">VmaDefragmentationInfo2::poolCount</a> and <a class="el" href="struct_vma_defragmentation_info2.html#a3c9c6aa5c97d5670f8e362b3a6f3029b" title="Either null or pointer to array of pools to be defragmented.">VmaDefragmentationInfo2::pPools</a> instead of <a class="el" href="struct_vma_defragmentation_info2.html#a3cf86ab32c1da779b4923d301a3056ba" title="Number of allocations in pAllocations array.">VmaDefragmentationInfo2::allocationCount</a> and <a class="el" href="struct_vma_defragmentation_info2.html#ab6d288f29d028156cf73542d630a2e32" title="Pointer to array of allocations that can be defragmented.">VmaDefragmentationInfo2::pAllocations</a> to defragment all allocations in given pools. You cannot use <a class="el" href="struct_vma_defragmentation_info2.html#a76d51a644dc7f5405d0cdd0025ecd0cc" title="Optional, output. Pointer to array that will be filled with information whether the allocation at cer...">VmaDefragmentationInfo2::pAllocationsChanged</a> in that case. You can also combine both methods.</p>
<h1><a class="anchor" id="defragmentation_gpu"></a>
@ -203,9 +203,9 @@ Defragmenting GPU memory</h1>
<div class="line"> <a class="code hl_function" href="group__group__alloc.html#ga6b0929b914b60cf2d45cac4bf3547470">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:1424</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:1419</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:1433</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:1430</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:1425</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:1439</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="group__group__alloc.html#ga36ba776fd7fd5cb1e9359fdc0d8e6e8a" title="Begins defragmentation process.">vmaDefragmentationBegin()</a>.</p>
<h1><a class="anchor" id="defragmentation_additional_notes"></a>

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@ -198,6 +198,8 @@ $(function() {
<li>vkFreeMemory&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a4c658701778564d62034255b5dda91b4">VmaVulkanFunctions</a></li>
<li>vkGetBufferMemoryRequirements&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a5b92901df89a4194b0d12f6071d4d143">VmaVulkanFunctions</a></li>
<li>vkGetBufferMemoryRequirements2KHR&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a9d8d1b05d2b1e7e1d9b27f6f585acf9c">VmaVulkanFunctions</a></li>
<li>vkGetDeviceBufferMemoryRequirements&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a3d6cc5633bdbfec728213d6dfae7d413">VmaVulkanFunctions</a></li>
<li>vkGetDeviceImageMemoryRequirements&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#afd4780c565028cd15498528883f51fc6">VmaVulkanFunctions</a></li>
<li>vkGetDeviceProcAddr&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#ac383ab9af127e5e136622fa4ebea9e57">VmaVulkanFunctions</a></li>
<li>vkGetImageMemoryRequirements&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a475f6f49f8debe4d10800592606d53f4">VmaVulkanFunctions</a></li>
<li>vkGetImageMemoryRequirements2KHR&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a9cdcdc1e2b2ea7c571f7d27e30ba6875">VmaVulkanFunctions</a></li>

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@ -198,6 +198,8 @@ $(function() {
<li>vkFreeMemory&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a4c658701778564d62034255b5dda91b4">VmaVulkanFunctions</a></li>
<li>vkGetBufferMemoryRequirements&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a5b92901df89a4194b0d12f6071d4d143">VmaVulkanFunctions</a></li>
<li>vkGetBufferMemoryRequirements2KHR&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a9d8d1b05d2b1e7e1d9b27f6f585acf9c">VmaVulkanFunctions</a></li>
<li>vkGetDeviceBufferMemoryRequirements&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a3d6cc5633bdbfec728213d6dfae7d413">VmaVulkanFunctions</a></li>
<li>vkGetDeviceImageMemoryRequirements&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#afd4780c565028cd15498528883f51fc6">VmaVulkanFunctions</a></li>
<li>vkGetDeviceProcAddr&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#ac383ab9af127e5e136622fa4ebea9e57">VmaVulkanFunctions</a></li>
<li>vkGetImageMemoryRequirements&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a475f6f49f8debe4d10800592606d53f4">VmaVulkanFunctions</a></li>
<li>vkGetImageMemoryRequirements2KHR&#160;:&#160;<a class="el" href="struct_vma_vulkan_functions.html#a9cdcdc1e2b2ea7c571f7d27e30ba6875">VmaVulkanFunctions</a></li>

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@ -119,12 +119,12 @@ Persistently mapped memory</h1>
<div class="ttc" id="agroup__group__alloc_html_ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e"><div class="ttname"><a href="group__group__alloc.html#ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e">VMA_MEMORY_USAGE_AUTO</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_AUTO</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:492</div></div>
<div class="ttc" id="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f">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:550</div></div>
<div class="ttc" id="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597a9be224df3bfc1cfa06203aed689a30c5"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a9be224df3bfc1cfa06203aed689a30c5">VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:597</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:1168</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:1176</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:1170</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:1174</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:1182</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:1176</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:1310</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:1352</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:1316</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:1358</div></div>
</div><!-- fragment --><dl class="section note"><dt>Note</dt><dd><a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f" title="Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.">VMA_ALLOCATION_CREATE_MAPPED_BIT</a> by itself doesn't guarantee that the allocation will end up in a mappable memory type. For this, you need to also specify <a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a9be224df3bfc1cfa06203aed689a30c5">VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT</a> or <a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597add61238d98e20917b9a06c617763f492">VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT</a>. <a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f" title="Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.">VMA_ALLOCATION_CREATE_MAPPED_BIT</a> only guarantees that if the memory is <code>HOST_VISIBLE</code>, the allocation will be mapped on creation. For an example of how to make use of this fact, see section <a class="el" href="usage_patterns.html#usage_patterns_advanced_data_uploading">Advanced data uploading</a>.</dd></dl>
<h1><a class="anchor" id="memory_mapping_cache_control"></a>
Cache flush and invalidate</h1>

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@ -124,12 +124,12 @@ Initialization</h1>
<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="group__group__init.html#ga200692051ddb34240248234f5f4c17bb">vmaCreateAllocator</a>(&amp;allocatorCreateInfo, &amp;allocator);</div>
<div class="ttc" id="agroup__group__init_html_ga200692051ddb34240248234f5f4c17bb"><div class="ttname"><a href="group__group__init.html#ga200692051ddb34240248234f5f4c17bb">vmaCreateAllocator</a></div><div class="ttdeci">VkResult vmaCreateAllocator(const VmaAllocatorCreateInfo *pCreateInfo, VmaAllocator *pAllocator)</div><div class="ttdoc">Creates VmaAllocator object.</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:994</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:999</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_a3dc197be3227da7338b1643f70db36bd"><div class="ttname"><a href="struct_vma_allocator_create_info.html#a3dc197be3227da7338b1643f70db36bd">VmaAllocatorCreateInfo::pVulkanFunctions</a></div><div class="ttdeci">const VmaVulkanFunctions * pVulkanFunctions</div><div class="ttdoc">Pointers to Vulkan functions. Can be null.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1042</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:1047</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:1002</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:1056</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:1000</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:1005</div></div>
<div class="ttc" id="astruct_vma_allocator_create_info_html_a3dc197be3227da7338b1643f70db36bd"><div class="ttname"><a href="struct_vma_allocator_create_info.html#a3dc197be3227da7338b1643f70db36bd">VmaAllocatorCreateInfo::pVulkanFunctions</a></div><div class="ttdeci">const VmaVulkanFunctions * pVulkanFunctions</div><div class="ttdoc">Pointers to Vulkan functions. Can be null.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1048</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:1053</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:1008</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:1062</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_vulkan_functions_html"><div class="ttname"><a href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></div><div class="ttdoc">Pointers to some Vulkan functions - a subset used by the library.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:953</div></div>
<div class="ttc" id="astruct_vma_vulkan_functions_html_a3eafa102f5f8915f093f40675636b849"><div class="ttname"><a href="struct_vma_vulkan_functions.html#a3eafa102f5f8915f093f40675636b849">VmaVulkanFunctions::vkGetInstanceProcAddr</a></div><div class="ttdeci">PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr</div><div class="ttdoc">Required when using VMA_DYNAMIC_VULKAN_FUNCTIONS.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:955</div></div>
@ -154,8 +154,8 @@ Resource allocation</h1>
<div class="line"><a class="code hl_function" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vmaCreateBuffer</a>(allocator, &amp;bufferInfo, &amp;allocInfo, &amp;buffer, &amp;allocation, <span class="keyword">nullptr</span>);</div>
<div class="ttc" id="agroup__group__alloc_html_gac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">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="agroup__group__alloc_html_ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e"><div class="ttname"><a href="group__group__alloc.html#ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e">VMA_MEMORY_USAGE_AUTO</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_AUTO</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:492</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:1168</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:1176</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:1174</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:1182</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><!-- 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="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77">vmaDestroyBuffer</a>(allocator, buffer, allocation);</div>

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@ -140,8 +140,8 @@ $(function() {
<div class="ttc" id="agroup__group__alloc_html_ga3d3ca45799923aa5d138e9e5f9eb2da5"><div class="ttname"><a href="group__group__alloc.html#ga3d3ca45799923aa5d138e9e5f9eb2da5">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="agroup__group__alloc_html_ga5fea5518972ae9094b1526cbcb19b05f"><div class="ttname"><a href="group__group__alloc.html#ga5fea5518972ae9094b1526cbcb19b05f">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="agroup__group__alloc_html_gabf28077dbf82d0908b8acbe8ee8dd9b8"><div class="ttname"><a href="group__group__alloc.html#gabf28077dbf82d0908b8acbe8ee8dd9b8">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 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:1168</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:1186</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:1174</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:1192</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><!-- 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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@ -82,6 +82,8 @@ $(function() {
<tr class="odd"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a4c658701778564d62034255b5dda91b4">vkFreeMemory</a></td><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></td><td class="entry"></td></tr>
<tr class="even"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a5b92901df89a4194b0d12f6071d4d143">vkGetBufferMemoryRequirements</a></td><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></td><td class="entry"></td></tr>
<tr class="odd"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a9d8d1b05d2b1e7e1d9b27f6f585acf9c">vkGetBufferMemoryRequirements2KHR</a></td><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></td><td class="entry"></td></tr>
<tr class="even"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a3d6cc5633bdbfec728213d6dfae7d413">vkGetDeviceBufferMemoryRequirements</a></td><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></td><td class="entry"></td></tr>
<tr class="odd"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#afd4780c565028cd15498528883f51fc6">vkGetDeviceImageMemoryRequirements</a></td><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></td><td class="entry"></td></tr>
<tr class="even"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#ac383ab9af127e5e136622fa4ebea9e57">vkGetDeviceProcAddr</a></td><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></td><td class="entry"></td></tr>
<tr class="odd"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a475f6f49f8debe4d10800592606d53f4">vkGetImageMemoryRequirements</a></td><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></td><td class="entry"></td></tr>
<tr class="even"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a9cdcdc1e2b2ea7c571f7d27e30ba6875">vkGetImageMemoryRequirements2KHR</a></td><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html">VmaVulkanFunctions</a></td><td class="entry"></td></tr>

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@ -128,6 +128,12 @@ Public Attributes</h2></td></tr>
<tr class="separator:ab95aaa73ab8a3fe9fd3daaaec4e0b2bf"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0d992896e6ffcf92b9d7ea049fa5c445"><td class="memItemLeft" align="right" valign="top">PFN_vkGetPhysicalDeviceMemoryProperties2KHR&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_vulkan_functions.html#a0d992896e6ffcf92b9d7ea049fa5c445">vkGetPhysicalDeviceMemoryProperties2KHR</a></td></tr>
<tr class="separator:a0d992896e6ffcf92b9d7ea049fa5c445"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3d6cc5633bdbfec728213d6dfae7d413"><td class="memItemLeft" align="right" valign="top">PFN_vkGetDeviceBufferMemoryRequirements&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_vulkan_functions.html#a3d6cc5633bdbfec728213d6dfae7d413">vkGetDeviceBufferMemoryRequirements</a></td></tr>
<tr class="memdesc:a3d6cc5633bdbfec728213d6dfae7d413"><td class="mdescLeft">&#160;</td><td class="mdescRight">Fetch from "vkGetDeviceBufferMemoryRequirements" on Vulkan &gt;= 1.3, but you can also fetch it from "vkGetDeviceBufferMemoryRequirementsKHR" if you enabled extension VK_KHR_maintenance4. <a href="struct_vma_vulkan_functions.html#a3d6cc5633bdbfec728213d6dfae7d413">More...</a><br /></td></tr>
<tr class="separator:a3d6cc5633bdbfec728213d6dfae7d413"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afd4780c565028cd15498528883f51fc6"><td class="memItemLeft" align="right" valign="top">PFN_vkGetDeviceImageMemoryRequirements&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_vulkan_functions.html#afd4780c565028cd15498528883f51fc6">vkGetDeviceImageMemoryRequirements</a></td></tr>
<tr class="memdesc:afd4780c565028cd15498528883f51fc6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Fetch from "vkGetDeviceImageMemoryRequirements" on Vulkan &gt;= 1.3, but you can also fetch it from "vkGetDeviceImageMemoryRequirementsKHR" if you enabled extension VK_KHR_maintenance4. <a href="struct_vma_vulkan_functions.html#afd4780c565028cd15498528883f51fc6">More...</a><br /></td></tr>
<tr class="separator:afd4780c565028cd15498528883f51fc6"><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 >Pointers to some Vulkan functions - a subset used by the library. </p>
@ -333,6 +339,38 @@ Public Attributes</h2></td></tr>
<p>Fetch "vkGetBufferMemoryRequirements2" on Vulkan &gt;= 1.1, fetch "vkGetBufferMemoryRequirements2KHR" when using VK_KHR_dedicated_allocation extension. </p>
</div>
</div>
<a id="a3d6cc5633bdbfec728213d6dfae7d413" name="a3d6cc5633bdbfec728213d6dfae7d413"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3d6cc5633bdbfec728213d6dfae7d413">&#9670;&nbsp;</a></span>vkGetDeviceBufferMemoryRequirements</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">PFN_vkGetDeviceBufferMemoryRequirements VmaVulkanFunctions::vkGetDeviceBufferMemoryRequirements</td>
</tr>
</table>
</div><div class="memdoc">
<p>Fetch from "vkGetDeviceBufferMemoryRequirements" on Vulkan &gt;= 1.3, but you can also fetch it from "vkGetDeviceBufferMemoryRequirementsKHR" if you enabled extension VK_KHR_maintenance4. </p>
</div>
</div>
<a id="afd4780c565028cd15498528883f51fc6" name="afd4780c565028cd15498528883f51fc6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afd4780c565028cd15498528883f51fc6">&#9670;&nbsp;</a></span>vkGetDeviceImageMemoryRequirements</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">PFN_vkGetDeviceImageMemoryRequirements VmaVulkanFunctions::vkGetDeviceImageMemoryRequirements</td>
</tr>
</table>
</div><div class="memdoc">
<p>Fetch from "vkGetDeviceImageMemoryRequirements" on Vulkan &gt;= 1.3, but you can also fetch it from "vkGetDeviceImageMemoryRequirementsKHR" if you enabled extension VK_KHR_maintenance4. </p>
</div>
</div>
<a id="ac383ab9af127e5e136622fa4ebea9e57" name="ac383ab9af127e5e136622fa4ebea9e57"></a>

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@ -98,9 +98,9 @@ GPU-only resource</h1>
<div class="ttc" id="agroup__group__alloc_html_ga02a94f25679275851a53e82eacbcfc73"><div class="ttname"><a href="group__group__alloc.html#ga02a94f25679275851a53e82eacbcfc73">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="agroup__group__alloc_html_ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e"><div class="ttname"><a href="group__group__alloc.html#ggaa5846affa1e9da3800e3e78fae2305cca27cde9026a84d34d525777baa41fce6e">VMA_MEMORY_USAGE_AUTO</a></div><div class="ttdeci">@ VMA_MEMORY_USAGE_AUTO</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:492</div></div>
<div class="ttc" id="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597a3fc311d855c2ff53f1090ef5c722b38f"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a3fc311d855c2ff53f1090ef5c722b38f">VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT</div><div class="ttdoc">Set this flag if the allocation should have its own memory block.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:528</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:1168</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:1176</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:1170</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:1174</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:1182</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:1176</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><!-- fragment --><p ><b>Also consider:</b> Consider creating them as dedicated allocations using <a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a3fc311d855c2ff53f1090ef5c722b38f" title="Set this flag if the allocation should have its own memory block.">VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT</a>, especially if they are large or if you plan to destroy and recreate them with different sizes e.g. when display resolution changes. Prefer to create such resources first and all other GPU resources (like textures and vertex buffers) later.</p>
<h1><a class="anchor" id="usage_patterns_staging_copy_upload"></a>
@ -127,8 +127,8 @@ Staging copy for upload</h1>
<div class="ttc" id="agroup__group__alloc_html_gac72ee55598617e8eecca384e746bab51"><div class="ttname"><a href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">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="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f">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:550</div></div>
<div class="ttc" id="agroup__group__alloc_html_ggad9889c10c798b040d59c92f257cae597a9be224df3bfc1cfa06203aed689a30c5"><div class="ttname"><a href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a9be224df3bfc1cfa06203aed689a30c5">VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT</a></div><div class="ttdeci">@ VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:597</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:1310</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:1352</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:1316</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:1358</div></div>
</div><!-- fragment --><p ><b>Also consider:</b> You can map the allocation using <a class="el" href="group__group__alloc.html#gad5bd1243512d099706de88168992f069" title="Maps memory represented by given allocation and returns pointer to it.">vmaMapMemory()</a> or you can create it as persistenly mapped using <a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f" title="Set this flag to use a memory that will be persistently mapped and retrieve pointer to it.">VMA_ALLOCATION_CREATE_MAPPED_BIT</a>, as in the example above.</p>
<h1><a class="anchor" id="usage_patterns_readback"></a>
Readback</h1>

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@ -84,8 +84,8 @@ Creating virtual block</h1>
<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="group__group__virtual.html#gab585754076877265fdae33e5c40ef13b">vmaCreateVirtualBlock</a>(&amp;blockCreateInfo, &amp;block);</div>
<div class="ttc" id="agroup__group__virtual_html_gab585754076877265fdae33e5c40ef13b"><div class="ttname"><a href="group__group__virtual.html#gab585754076877265fdae33e5c40ef13b">vmaCreateVirtualBlock</a></div><div class="ttdeci">VkResult vmaCreateVirtualBlock(const VmaVirtualBlockCreateInfo *pCreateInfo, VmaVirtualBlock *pVirtualBlock)</div><div class="ttdoc">Creates new VmaVirtualBlock object.</div></div>
<div class="ttc" id="astruct_vma_virtual_block_create_info_html"><div class="ttname"><a href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></div><div class="ttdoc">Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1493</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:1499</div></div>
<div class="ttc" id="astruct_vma_virtual_block_create_info_html"><div class="ttname"><a href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></div><div class="ttdoc">Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1499</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:1505</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><!-- fragment --><h1><a class="anchor" id="virtual_allocator_making_virtual_allocations"></a>
Making virtual allocations</h1>
@ -111,8 +111,8 @@ Making virtual allocations</h1>
<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="agroup__group__virtual_html_ga6b7cdcc1c3e5103c323fedc4e1319e01"><div class="ttname"><a href="group__group__virtual.html#ga6b7cdcc1c3e5103c323fedc4e1319e01">vmaVirtualAllocate</a></div><div class="ttdeci">VkResult vmaVirtualAllocate(VmaVirtualBlock virtualBlock, const VmaVirtualAllocationCreateInfo *pCreateInfo, VmaVirtualAllocation *pAllocation, VkDeviceSize *pOffset)</div><div class="ttdoc">Allocates new virtual allocation inside given VmaVirtualBlock.</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></div><div class="ttdoc">Parameters of created virtual allocation to be passed to vmaVirtualAllocate().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1514</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:1519</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></div><div class="ttdoc">Parameters of created virtual allocation to be passed to vmaVirtualAllocate().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1520</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:1525</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_html"><div class="ttname"><a href="struct_vma_virtual_allocation.html">VmaVirtualAllocation</a></div><div class="ttdoc">Represents single memory allocation done inside VmaVirtualBlock.</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_deallocation"></a>
Deallocation</h1>
@ -140,8 +140,8 @@ Allocation parameters</h1>
<div class="line"> </div>
<div class="line"><a class="code hl_function" href="group__group__virtual.html#ga09fc688c0c3653ff23723b037e5d5033">vmaVirtualFree</a>(block, alloc);</div>
<div class="ttc" id="agroup__group__virtual_html_ga8ee14ceb1fe033ec84d8aa29e1f75afa"><div class="ttname"><a href="group__group__virtual.html#ga8ee14ceb1fe033ec84d8aa29e1f75afa">vmaGetVirtualAllocationInfo</a></div><div class="ttdeci">void vmaGetVirtualAllocationInfo(VmaVirtualBlock virtualBlock, VmaVirtualAllocation allocation, 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 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:1537</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:1552</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a></div><div class="ttdoc">Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1543</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:1558</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>
@ -151,7 +151,7 @@ Alignment and units</h1>
<div class="line"> </div>
<div class="line"><a class="code hl_struct" href="struct_vma_virtual_allocation.html">VmaVirtualAllocation</a> alloc;</div>
<div class="line">res = <a class="code hl_function" href="group__group__virtual.html#ga6b7cdcc1c3e5103c323fedc4e1319e01">vmaVirtualAllocate</a>(block, &amp;allocCreateInfo, &amp;alloc, <span class="keyword">nullptr</span>);</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:1524</div></div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html_a9d19709872fc1904a105079e1c885821"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">VmaVirtualAllocationCreateInfo::alignment</a></div><div class="ttdeci">VkDeviceSize alignment</div><div class="ttdoc">Required alignment of the allocation. Optional.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1530</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>
@ -166,9 +166,9 @@ Statistics</h1>
<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="agroup__group__virtual_html_ga95169b4730e94757897470086ec2768a"><div class="ttname"><a href="group__group__virtual.html#ga95169b4730e94757897470086ec2768a">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 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:1100</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:1104</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:1108</div></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:1106</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:1110</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:1114</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="group__group__stats.html#ga52d810e1222c592e5d80556ad005f1e6" 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="group__group__stats.html#ga47fb8d8aa69df4a7c23a9719b4080623" 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>

123
include/vk_mem_alloc.h
View File

@ -987,6 +987,12 @@ typedef struct VmaVulkanFunctions
#if VMA_MEMORY_BUDGET || VMA_VULKAN_VERSION >= 1001000
PFN_vkGetPhysicalDeviceMemoryProperties2KHR VMA_NULLABLE vkGetPhysicalDeviceMemoryProperties2KHR;
#endif
#if VMA_VULKAN_VERSION >= 1003000
/// Fetch from "vkGetDeviceBufferMemoryRequirements" on Vulkan >= 1.3, but you can also fetch it from "vkGetDeviceBufferMemoryRequirementsKHR" if you enabled extension VK_KHR_maintenance4.
PFN_vkGetDeviceBufferMemoryRequirements VMA_NULLABLE vkGetDeviceBufferMemoryRequirements;
/// Fetch from "vkGetDeviceImageMemoryRequirements" on Vulkan >= 1.3, but you can also fetch it from "vkGetDeviceImageMemoryRequirementsKHR" if you enabled extension VK_KHR_maintenance4.
PFN_vkGetDeviceImageMemoryRequirements VMA_NULLABLE vkGetDeviceImageMemoryRequirements;
#endif
} VmaVulkanFunctions;
/// Description of a Allocator to be created.
@ -2968,6 +2974,8 @@ static const uint32_t VMA_CORRUPTION_DETECTION_MAGIC_VALUE = 0x7F84E666;
static const uint32_t VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY = 0x00000040;
static const uint32_t VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY = 0x00000080;
static const uint32_t VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_COPY = 0x00020000;
static const uint32_t VK_IMAGE_CREATE_DISJOINT_BIT_COPY = 0x00000200;
static const int32_t VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT_COPY = 1000158000;
static const uint32_t VMA_ALLOCATION_INTERNAL_STRATEGY_MIN_OFFSET = 0x10000000u;
static const uint32_t VMA_ALLOCATION_TRY_COUNT = 32;
static const uint32_t VMA_VENDOR_ID_AMD = 4098;
@ -15127,6 +15135,14 @@ void VmaAllocator_T::ImportVulkanFunctions_Static()
m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties2KHR = (PFN_vkGetPhysicalDeviceMemoryProperties2)vkGetPhysicalDeviceMemoryProperties2;
}
#endif
#if VMA_VULKAN_VERSION >= 1003000
if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 3, 0))
{
m_VulkanFunctions.vkGetDeviceBufferMemoryRequirements = (PFN_vkGetDeviceBufferMemoryRequirements)vkGetDeviceBufferMemoryRequirements;
m_VulkanFunctions.vkGetDeviceImageMemoryRequirements = (PFN_vkGetDeviceImageMemoryRequirements)vkGetDeviceImageMemoryRequirements;
}
#endif
}
#endif // VMA_STATIC_VULKAN_FUNCTIONS == 1
@ -15172,6 +15188,11 @@ void VmaAllocator_T::ImportVulkanFunctions_Custom(const VmaVulkanFunctions* pVul
VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceMemoryProperties2KHR);
#endif
#if VMA_VULKAN_VERSION >= 1003000
VMA_COPY_IF_NOT_NULL(vkGetDeviceBufferMemoryRequirements);
VMA_COPY_IF_NOT_NULL(vkGetDeviceImageMemoryRequirements);
#endif
#undef VMA_COPY_IF_NOT_NULL
}
@ -15245,6 +15266,14 @@ void VmaAllocator_T::ImportVulkanFunctions_Dynamic()
}
#endif // #if VMA_MEMORY_BUDGET
#if VMA_VULKAN_VERSION >= 1003000
if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 3, 0))
{
VMA_FETCH_DEVICE_FUNC(vkGetDeviceBufferMemoryRequirements, PFN_vkGetDeviceBufferMemoryRequirements, "vkGetDeviceBufferMemoryRequirements");
VMA_FETCH_DEVICE_FUNC(vkGetDeviceImageMemoryRequirements, PFN_vkGetDeviceImageMemoryRequirements, "vkGetDeviceImageMemoryRequirements");
}
#endif
#undef VMA_FETCH_DEVICE_FUNC
#undef VMA_FETCH_INSTANCE_FUNC
}
@ -15293,6 +15322,14 @@ void VmaAllocator_T::ValidateVulkanFunctions()
VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties2KHR != VMA_NULL);
}
#endif
#if VMA_VULKAN_VERSION >= 1003000
if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 3, 0))
{
VMA_ASSERT(m_VulkanFunctions.vkGetDeviceBufferMemoryRequirements != VMA_NULL);
VMA_ASSERT(m_VulkanFunctions.vkGetDeviceImageMemoryRequirements != VMA_NULL);
}
#endif
}
VkDeviceSize VmaAllocator_T::CalcPreferredBlockSize(uint32_t memTypeIndex)
@ -17176,24 +17213,40 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForBufferInfo(
VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
const VkDevice hDev = allocator->m_hDevice;
VkBuffer hBuffer = VK_NULL_HANDLE;
const VmaVulkanFunctions* funcs = &allocator->GetVulkanFunctions();
VkResult res = funcs->vkCreateBuffer(
hDev, pBufferCreateInfo, allocator->GetAllocationCallbacks(), &hBuffer);
if(res == VK_SUCCESS)
VkResult res;
#if VMA_VULKAN_VERSION >= 1003000
if(funcs->vkGetDeviceBufferMemoryRequirements)
{
VkMemoryRequirements memReq = {};
funcs->vkGetBufferMemoryRequirements(
hDev, hBuffer, &memReq);
// Can query straight from VkBufferCreateInfo :)
VkDeviceBufferMemoryRequirements devBufMemReq = {VK_STRUCTURE_TYPE_DEVICE_BUFFER_MEMORY_REQUIREMENTS};
devBufMemReq.pCreateInfo = pBufferCreateInfo;
VkMemoryRequirements2 memReq = {VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2};
(*funcs->vkGetDeviceBufferMemoryRequirements)(hDev, &devBufMemReq, &memReq);
res = allocator->FindMemoryTypeIndex(
memReq.memoryTypeBits,
pAllocationCreateInfo,
pBufferCreateInfo->usage,
pMemoryTypeIndex);
memReq.memoryRequirements.memoryTypeBits, pAllocationCreateInfo, pBufferCreateInfo->usage, pMemoryTypeIndex);
}
else
#endif // #if VMA_VULKAN_VERSION >= 1003000
{
// Must create a dummy buffer to query :(
VkBuffer hBuffer = VK_NULL_HANDLE;
res = funcs->vkCreateBuffer(
hDev, pBufferCreateInfo, allocator->GetAllocationCallbacks(), &hBuffer);
if(res == VK_SUCCESS)
{
VkMemoryRequirements memReq = {};
funcs->vkGetBufferMemoryRequirements(hDev, hBuffer, &memReq);
funcs->vkDestroyBuffer(
hDev, hBuffer, allocator->GetAllocationCallbacks());
res = allocator->FindMemoryTypeIndex(
memReq.memoryTypeBits, pAllocationCreateInfo, pBufferCreateInfo->usage, pMemoryTypeIndex);
funcs->vkDestroyBuffer(
hDev, hBuffer, allocator->GetAllocationCallbacks());
}
}
return res;
}
@ -17210,24 +17263,42 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForImageInfo(
VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
const VkDevice hDev = allocator->m_hDevice;
VkImage hImage = VK_NULL_HANDLE;
const VmaVulkanFunctions* funcs = &allocator->GetVulkanFunctions();
VkResult res = funcs->vkCreateImage(
hDev, pImageCreateInfo, allocator->GetAllocationCallbacks(), &hImage);
if(res == VK_SUCCESS)
VkResult res;
#if VMA_VULKAN_VERSION >= 1003000
if(funcs->vkGetDeviceImageMemoryRequirements)
{
VkMemoryRequirements memReq = {};
funcs->vkGetImageMemoryRequirements(
hDev, hImage, &memReq);
// Can query straight from VkImageCreateInfo :)
VkDeviceImageMemoryRequirements devImgMemReq = {VK_STRUCTURE_TYPE_DEVICE_IMAGE_MEMORY_REQUIREMENTS};
devImgMemReq.pCreateInfo = pImageCreateInfo;
VMA_ASSERT(pImageCreateInfo->tiling != VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT_COPY && (pImageCreateInfo->flags & VK_IMAGE_CREATE_DISJOINT_BIT_COPY) == 0 &&
"Cannot use this VkImageCreateInfo with vmaFindMemoryTypeIndexForImageInfo as I don't know what to pass as VkDeviceImageMemoryRequirements::planeAspect.");
VkMemoryRequirements2 memReq = {VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2};
(*funcs->vkGetDeviceImageMemoryRequirements)(hDev, &devImgMemReq, &memReq);
res = allocator->FindMemoryTypeIndex(
memReq.memoryTypeBits,
pAllocationCreateInfo,
pImageCreateInfo->usage,
pMemoryTypeIndex);
memReq.memoryRequirements.memoryTypeBits, pAllocationCreateInfo, pImageCreateInfo->usage, pMemoryTypeIndex);
}
else
#endif // #if VMA_VULKAN_VERSION >= 1003000
{
// Must create a dummy image to query :(
VkImage hImage = VK_NULL_HANDLE;
res = funcs->vkCreateImage(
hDev, pImageCreateInfo, allocator->GetAllocationCallbacks(), &hImage);
if(res == VK_SUCCESS)
{
VkMemoryRequirements memReq = {};
funcs->vkGetImageMemoryRequirements(hDev, hImage, &memReq);
funcs->vkDestroyImage(
hDev, hImage, allocator->GetAllocationCallbacks());
res = allocator->FindMemoryTypeIndex(
memReq.memoryTypeBits, pAllocationCreateInfo, pImageCreateInfo->usage, pMemoryTypeIndex);
funcs->vkDestroyImage(
hDev, hImage, allocator->GetAllocationCallbacks());
}
}
return res;
}