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Added function vmaCreateAliasingBuffer2, vmaCreateAliasingImage2 with new parameter allocationLocalOffset

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Thanks @sagaceilo for the idea!
This commit is contained in:
Adam Sawicki 2022-09-04 13:26:39 +02:00
parent 2a7110f078
commit d6b705bf75
15 changed files with 341 additions and 146 deletions
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@ -100,7 +100,7 @@ Usage</h1>
<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>
<p >For example, a staging buffer that will be filled via mapped pointer and then used as a source of transfer to the buffer decribed previously can be created like this. It will likely and up in a memory type that is <code>HOST_VISIBLE</code> and <code>HOST_COHERENT</code> but not <code>HOST_CACHED</code> (meaning uncached, write-combined) and not <code>DEVICE_LOCAL</code> (meaning system RAM).</p>
<p >For example, a staging buffer that will be filled via mapped pointer and then used as a source of transfer to the buffer described previously can be created like this. It will likely and up in a memory type that is <code>HOST_VISIBLE</code> and <code>HOST_COHERENT</code> but not <code>HOST_CACHED</code> (meaning uncached, write-combined) and not <code>DEVICE_LOCAL</code> (meaning system RAM).</p>
<div class="fragment"><div class="line">VkBufferCreateInfo stagingBufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };</div>
<div class="line">stagingBufferInfo.size = 65536;</div>
<div class="line">stagingBufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;</div>
@ -115,7 +115,7 @@ Usage</h1>
<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:595</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:1221</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" title="Creates a new VkBuffer, allocates and binds memory for it.">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>
<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" title="Creates a new VkBuffer, allocates and binds memory for it.">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 described 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>
<h1><a class="anchor" id="choosing_memory_type_required_preferred_flags"></a>
Required and preferred flags</h1>

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@ -87,7 +87,7 @@ Versioning and compatibility</h1>
<li>Incrementing Major version means a release could break some backward compatibility.</li>
</ul>
<p >All changes between official releases are documented in file "CHANGELOG.md".</p>
<dl class="section warning"><dt>Warning</dt><dd>Backward compatiblity is considered on the level of C++ source code, not binary linkage. Adding new members to existing structures is treated as backward compatible if initializing the new members to binary zero results in the old behavior. You should always fully initialize all library structures to zeros and not rely on their exact binary size.</dd></dl>
<dl class="section warning"><dt>Warning</dt><dd>Backward compatibility is considered on the level of C++ source code, not binary linkage. Adding new members to existing structures is treated as backward compatible if initializing the new members to binary zero results in the old behavior. You should always fully initialize all library structures to zeros and not rely on their exact binary size.</dd></dl>
<h1><a class="anchor" id="general_considerations_validation_layer_warnings"></a>
Validation layer warnings</h1>
<p >When using this library, you can meet following types of warnings issued by Vulkan validation layer. They don't necessarily indicate a bug, so you may need to just ignore them.</p>

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@ -164,7 +164,9 @@ $(function() {
<li>vmaCheckPoolCorruption()&#160;:&#160;<a class="el" href="group__group__alloc.html#gad535935619c7a549bf837e1bb0068f89">vk_mem_alloc.h</a></li>
<li>vmaClearVirtualBlock()&#160;:&#160;<a class="el" href="group__group__virtual.html#ga5eda6f55919fb05bd2f56a112590c571">vk_mem_alloc.h</a></li>
<li>vmaCreateAliasingBuffer()&#160;:&#160;<a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03">vk_mem_alloc.h</a></li>
<li>vmaCreateAliasingBuffer2()&#160;:&#160;<a class="el" href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122">vk_mem_alloc.h</a></li>
<li>vmaCreateAliasingImage()&#160;:&#160;<a class="el" href="group__group__alloc.html#gaebc4db1f94b53dba2338b4c0fd80d0dc">vk_mem_alloc.h</a></li>
<li>vmaCreateAliasingImage2()&#160;:&#160;<a class="el" href="group__group__alloc.html#ga69ac829f5bb0737449fa92c2d971f1bb">vk_mem_alloc.h</a></li>
<li>vmaCreateAllocator()&#160;:&#160;<a class="el" href="group__group__init.html#ga200692051ddb34240248234f5f4c17bb">vk_mem_alloc.h</a></li>
<li>vmaCreateBuffer()&#160;:&#160;<a class="el" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vk_mem_alloc.h</a></li>
<li>vmaCreateBufferWithAlignment()&#160;:&#160;<a class="el" href="group__group__alloc.html#gaa06a690013a0d01e60894ac378083834">vk_mem_alloc.h</a></li>

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@ -85,7 +85,9 @@ $(function() {
<li>vmaCheckPoolCorruption()&#160;:&#160;<a class="el" href="group__group__alloc.html#gad535935619c7a549bf837e1bb0068f89">vk_mem_alloc.h</a></li>
<li>vmaClearVirtualBlock()&#160;:&#160;<a class="el" href="group__group__virtual.html#ga5eda6f55919fb05bd2f56a112590c571">vk_mem_alloc.h</a></li>
<li>vmaCreateAliasingBuffer()&#160;:&#160;<a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03">vk_mem_alloc.h</a></li>
<li>vmaCreateAliasingBuffer2()&#160;:&#160;<a class="el" href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122">vk_mem_alloc.h</a></li>
<li>vmaCreateAliasingImage()&#160;:&#160;<a class="el" href="group__group__alloc.html#gaebc4db1f94b53dba2338b4c0fd80d0dc">vk_mem_alloc.h</a></li>
<li>vmaCreateAliasingImage2()&#160;:&#160;<a class="el" href="group__group__alloc.html#ga69ac829f5bb0737449fa92c2d971f1bb">vk_mem_alloc.h</a></li>
<li>vmaCreateAllocator()&#160;:&#160;<a class="el" href="group__group__init.html#ga200692051ddb34240248234f5f4c17bb">vk_mem_alloc.h</a></li>
<li>vmaCreateBuffer()&#160;:&#160;<a class="el" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51">vk_mem_alloc.h</a></li>
<li>vmaCreateBufferWithAlignment()&#160;:&#160;<a class="el" href="group__group__alloc.html#gaa06a690013a0d01e60894ac378083834">vk_mem_alloc.h</a></li>

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@ -338,6 +338,9 @@ Functions</h2></td></tr>
<tr class="memitem:ga60d5d4803e3c82505a2bfddb929adb03"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03">vmaCreateAliasingBuffer</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, const VkBufferCreateInfo *pBufferCreateInfo, VkBuffer *pBuffer)</td></tr>
<tr class="memdesc:ga60d5d4803e3c82505a2bfddb929adb03"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a new <code>VkBuffer</code>, binds already created memory for it. <a href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03">More...</a><br /></td></tr>
<tr class="separator:ga60d5d4803e3c82505a2bfddb929adb03"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf0cf014344213e117bd9f9cf5f928122"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122">vmaCreateAliasingBuffer2</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, VkDeviceSize allocationLocalOffset, const VkBufferCreateInfo *pBufferCreateInfo, VkBuffer *pBuffer)</td></tr>
<tr class="memdesc:gaf0cf014344213e117bd9f9cf5f928122"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a new <code>VkBuffer</code>, binds already created memory for it. <a href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122">More...</a><br /></td></tr>
<tr class="separator:gaf0cf014344213e117bd9f9cf5f928122"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga0d9f4e4ba5bf9aab1f1c746387753d77"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77">vmaDestroyBuffer</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, VkBuffer buffer, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation)</td></tr>
<tr class="memdesc:ga0d9f4e4ba5bf9aab1f1c746387753d77"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroys Vulkan buffer and frees allocated memory. <a href="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77">More...</a><br /></td></tr>
<tr class="separator:ga0d9f4e4ba5bf9aab1f1c746387753d77"><td class="memSeparator" colspan="2">&#160;</td></tr>
@ -345,8 +348,11 @@ Functions</h2></td></tr>
<tr class="memdesc:ga02a94f25679275851a53e82eacbcfc73"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function similar to <a class="el" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51" title="Creates a new VkBuffer, allocates and binds memory for it.">vmaCreateBuffer()</a>. <a href="group__group__alloc.html#ga02a94f25679275851a53e82eacbcfc73">More...</a><br /></td></tr>
<tr class="separator:ga02a94f25679275851a53e82eacbcfc73"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaebc4db1f94b53dba2338b4c0fd80d0dc"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#gaebc4db1f94b53dba2338b4c0fd80d0dc">vmaCreateAliasingImage</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, const VkImageCreateInfo *pImageCreateInfo, VkImage *pImage)</td></tr>
<tr class="memdesc:gaebc4db1f94b53dba2338b4c0fd80d0dc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function similar to <a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer()</a>. <a href="group__group__alloc.html#gaebc4db1f94b53dba2338b4c0fd80d0dc">More...</a><br /></td></tr>
<tr class="memdesc:gaebc4db1f94b53dba2338b4c0fd80d0dc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function similar to <a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer()</a> but for images. <a href="group__group__alloc.html#gaebc4db1f94b53dba2338b4c0fd80d0dc">More...</a><br /></td></tr>
<tr class="separator:gaebc4db1f94b53dba2338b4c0fd80d0dc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga69ac829f5bb0737449fa92c2d971f1bb"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#ga69ac829f5bb0737449fa92c2d971f1bb">vmaCreateAliasingImage2</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, VkDeviceSize allocationLocalOffset, const VkImageCreateInfo *pImageCreateInfo, VkImage *pImage)</td></tr>
<tr class="memdesc:ga69ac829f5bb0737449fa92c2d971f1bb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function similar to <a class="el" href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer2()</a> but for images. <a href="group__group__alloc.html#ga69ac829f5bb0737449fa92c2d971f1bb">More...</a><br /></td></tr>
<tr class="separator:ga69ac829f5bb0737449fa92c2d971f1bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#gae50d2cb3b4a3bfd4dd40987234e50e7e">vmaDestroyImage</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, VkImage image, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation)</td></tr>
<tr class="memdesc:gae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroys Vulkan image and frees allocated memory. <a href="group__group__alloc.html#gae50d2cb3b4a3bfd4dd40987234e50e7e">More...</a><br /></td></tr>
<tr class="separator:gae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="memSeparator" colspan="2">&#160;</td></tr>
@ -659,7 +665,7 @@ Functions</h2></td></tr>
</td></tr>
<tr><td class="fieldname"><a id="ggad9889c10c798b040d59c92f257cae597a0729e932b7ea170e3a128cad96c5cf6d" name="ggad9889c10c798b040d59c92f257cae597a0729e932b7ea170e3a128cad96c5cf6d"></a>VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT&#160;</td><td class="fielddoc"><p >Allocation strategy that chooses first suitable free range for the allocation - not necessarily in terms of the smallest offset but the one that is easiest and fastest to find to minimize allocation time, possibly at the expense of allocation quality. </p>
</td></tr>
<tr><td class="fieldname"><a id="ggad9889c10c798b040d59c92f257cae597a8099acedc0d04cdccaaddcfe37fd227d" name="ggad9889c10c798b040d59c92f257cae597a8099acedc0d04cdccaaddcfe37fd227d"></a>VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT&#160;</td><td class="fielddoc"><p >Allocation strategy that chooses always the lowest offset in available space. This is not the most efficient strategy but achieves highly packed data. Used internally by defragmentation, not recomended in typical usage. </p>
<tr><td class="fieldname"><a id="ggad9889c10c798b040d59c92f257cae597a8099acedc0d04cdccaaddcfe37fd227d" name="ggad9889c10c798b040d59c92f257cae597a8099acedc0d04cdccaaddcfe37fd227d"></a>VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT&#160;</td><td class="fielddoc"><p >Allocation strategy that chooses always the lowest offset in available space. This is not the most efficient strategy but achieves highly packed data. Used internally by defragmentation, not recommended in typical usage. </p>
</td></tr>
<tr><td class="fieldname"><a id="ggad9889c10c798b040d59c92f257cae597a839826775c62319466441f86496f036d" name="ggad9889c10c798b040d59c92f257cae597a839826775c62319466441f86496f036d"></a>VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT&#160;</td><td class="fielddoc"><p >Alias to <a class="el" href="group__group__alloc.html#ggad9889c10c798b040d59c92f257cae597a8af1210cf591784afa026d94998f735d">VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT</a>. </p>
</td></tr>
@ -1137,7 +1143,7 @@ Functions</h2></td></tr>
<table class="params">
<tr><td class="paramdir"></td><td class="paramname">allocator</td><td>Allocator object. </td></tr>
<tr><td class="paramdir"></td><td class="paramname">context</td><td>Context object that has been created by <a class="el" href="group__group__alloc.html#gac3335566858b45541fa9c0d7a6bbb57e" title="Begins defragmentation process.">vmaBeginDefragmentation()</a>. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pPassInfo</td><td>Computed informations for current pass. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pPassInfo</td><td>Computed information for current pass. </td></tr>
</table>
</dd>
</dl>
@ -1482,7 +1488,74 @@ Functions</h2></td></tr>
<li>Binds the buffer with the supplied memory.</li>
</ol>
<p >If any of these operations fail, buffer is not created, returned value is negative error code and <code>*pBuffer</code> is null.</p>
<p >If the function succeeded, you must destroy the buffer when you no longer need it using <code>vkDestroyBuffer()</code>. If you want to also destroy the corresponding allocation you can use convenience function <a class="el" href="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77" title="Destroys Vulkan buffer and frees allocated memory.">vmaDestroyBuffer()</a>. </p>
<p >If the function succeeded, you must destroy the buffer when you no longer need it using <code>vkDestroyBuffer()</code>. If you want to also destroy the corresponding allocation you can use convenience function <a class="el" href="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77" title="Destroys Vulkan buffer and frees allocated memory.">vmaDestroyBuffer()</a>.</p>
<dl class="section note"><dt>Note</dt><dd>There is a new version of this function augmented with parameter <code>allocationLocalOffset</code> - see <a class="el" href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer2()</a>. </dd></dl>
</div>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#gaf0cf014344213e117bd9f9cf5f928122">&#9670;&nbsp;</a></span>vmaCreateAliasingBuffer2()</h2>
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<table class="memname">
<tr>
<td class="memname">VkResult vmaCreateAliasingBuffer2 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_vma_allocator.html">VmaAllocator</a>&#160;</td>
<td class="paramname"><em>allocator</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_vma_allocation.html">VmaAllocation</a>&#160;</td>
<td class="paramname"><em>allocation</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">VkDeviceSize&#160;</td>
<td class="paramname"><em>allocationLocalOffset</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const VkBufferCreateInfo *&#160;</td>
<td class="paramname"><em>pBufferCreateInfo</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">VkBuffer *&#160;</td>
<td class="paramname"><em>pBuffer</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Creates a new <code>VkBuffer</code>, binds already created memory for it. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir"></td><td class="paramname">allocator</td><td></td></tr>
<tr><td class="paramdir"></td><td class="paramname">allocation</td><td>Allocation that provides memory to be used for binding new buffer to it. </td></tr>
<tr><td class="paramdir"></td><td class="paramname">allocationLocalOffset</td><td>Additional offset to be added while binding, relative to the beginning of the allocation. Normally it should be 0. </td></tr>
<tr><td class="paramdir"></td><td class="paramname">pBufferCreateInfo</td><td></td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pBuffer</td><td>Buffer that was created.</td></tr>
</table>
</dd>
</dl>
<p>This function automatically:</p>
<ol type="1">
<li>Creates buffer.</li>
<li>Binds the buffer with the supplied memory.</li>
</ol>
<p >If any of these operations fail, buffer is not created, returned value is negative error code and <code>*pBuffer</code> is null.</p>
<p >If the function succeeded, you must destroy the buffer when you no longer need it using <code>vkDestroyBuffer()</code>. If you want to also destroy the corresponding allocation you can use convenience function <a class="el" href="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77" title="Destroys Vulkan buffer and frees allocated memory.">vmaDestroyBuffer()</a>.</p>
<dl class="section note"><dt>Note</dt><dd>This is a new version of the function augmented with parameter <code>allocationLocalOffset</code>. </dd></dl>
</div>
</div>
@ -1524,7 +1597,55 @@ Functions</h2></td></tr>
</table>
</div><div class="memdoc">
<p>Function similar to <a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer()</a>. </p>
<p>Function similar to <a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer()</a> but for images. </p>
</div>
</div>
<a id="ga69ac829f5bb0737449fa92c2d971f1bb" name="ga69ac829f5bb0737449fa92c2d971f1bb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga69ac829f5bb0737449fa92c2d971f1bb">&#9670;&nbsp;</a></span>vmaCreateAliasingImage2()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">VkResult vmaCreateAliasingImage2 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_vma_allocator.html">VmaAllocator</a>&#160;</td>
<td class="paramname"><em>allocator</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_vma_allocation.html">VmaAllocation</a>&#160;</td>
<td class="paramname"><em>allocation</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">VkDeviceSize&#160;</td>
<td class="paramname"><em>allocationLocalOffset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const VkImageCreateInfo *&#160;</td>
<td class="paramname"><em>pImageCreateInfo</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">VkImage *&#160;</td>
<td class="paramname"><em>pImage</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p>Function similar to <a class="el" href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer2()</a> but for images. </p>
</div>
</div>
@ -1955,7 +2076,7 @@ Functions</h2></td></tr>
<table class="params">
<tr><td class="paramname">allocator</td><td>Allocator object. </td></tr>
<tr><td class="paramname">context</td><td>Context object that has been created by <a class="el" href="group__group__alloc.html#gac3335566858b45541fa9c0d7a6bbb57e" title="Begins defragmentation process.">vmaBeginDefragmentation()</a>. </td></tr>
<tr><td class="paramname">pPassInfo</td><td>Computed informations for current pass filled by <a class="el" href="group__group__alloc.html#ga980d7da2ce3b1fd5c8b8476bc362cc00" title="Starts single defragmentation pass.">vmaBeginDefragmentationPass()</a> and possibly modified by you.</td></tr>
<tr><td class="paramname">pPassInfo</td><td>Computed information for current pass filled by <a class="el" href="group__group__alloc.html#ga980d7da2ce3b1fd5c8b8476bc362cc00" title="Starts single defragmentation pass.">vmaBeginDefragmentationPass()</a> and possibly modified by you.</td></tr>
</table>
</dd>
</dl>
@ -2319,7 +2440,7 @@ Functions</h2></td></tr>
</div><div class="memdoc">
<p>Returns current information about specified allocation. </p>
<p >Current paramteres of given allocation are returned in <code>pAllocationInfo</code>.</p>
<p >Current parameters of given allocation are returned in <code>pAllocationInfo</code>.</p>
<p >Although this function doesn't lock any mutex, so it should be quite efficient, you should avoid calling it too often. You can retrieve same <a class="el" href="struct_vma_allocation_info.html" title="Parameters of VmaAllocation objects, that can be retrieved using function vmaGetAllocationInfo().">VmaAllocationInfo</a> structure while creating your resource, from function <a class="el" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51" title="Creates a new VkBuffer, allocates and binds memory for it.">vmaCreateBuffer()</a>, <a class="el" href="group__group__alloc.html#ga02a94f25679275851a53e82eacbcfc73" title="Function similar to vmaCreateBuffer().">vmaCreateImage()</a>. You can remember it if you are sure parameters don't change (e.g. due to defragmentation). </p>
</div>

2
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@ -65,7 +65,7 @@ $(function() {
<div class="headertitle"><div class="title">Vulkan Memory Allocator </div></div>
</div><!--header-->
<div class="contents">
<div class="textblock"><p ><b>Version 3.0.1 (2022-05-26)</b></p>
<div class="textblock"><p ><b>Version 3.1.0-development</b></p>
<p >Copyright (c) 2017-2022 Advanced Micro Devices, Inc. All rights reserved. <br />
License: MIT</p>
<p ><b>API documentation divided into groups:</b> <a href="modules.html">Modules</a></p>

2
docs/html/memory_mapping.html
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@ -98,7 +98,7 @@ Mapping functions</h1>
<p >It happens because the library maps entire <code>VkDeviceMemory</code> block, where different types of images and buffers may end up together, especially on GPUs with unified memory like Intel. You can safely ignore it if you are sure you access only memory of the intended object that you wanted to map.</p>
<h1><a class="anchor" id="memory_mapping_persistently_mapped_memory"></a>
Persistently mapped memory</h1>
<p >Kepping your memory persistently mapped is generally OK in Vulkan. You don't need to unmap it before using its data on the GPU. The library provides a special feature designed for that: Allocations made with <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> flag set in <a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b" title="Use VmaAllocationCreateFlagBits enum.">VmaAllocationCreateInfo::flags</a> stay mapped all the time, so you can just access CPU pointer to it any time without a need to call any "map" or "unmap" function. Example:</p>
<p >Keeping your memory persistently mapped is generally OK in Vulkan. You don't need to unmap it before using its data on the GPU. The library provides a special feature designed for that: Allocations made with <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> flag set in <a class="el" href="struct_vma_allocation_create_info.html#add09658ac14fe290ace25470ddd6d41b" title="Use VmaAllocationCreateFlagBits enum.">VmaAllocationCreateInfo::flags</a> stay mapped all the time, so you can just access CPU pointer to it any time without a need to call any "map" or "unmap" function. Example:</p>
<div class="fragment"><div class="line">VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };</div>
<div class="line">bufCreateInfo.size = <span class="keyword">sizeof</span>(ConstantBuffer);</div>
<div class="line">bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;</div>

2
docs/html/quick_start.html
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@ -94,7 +94,7 @@ Initialization</h1>
<p >Only members <code>physicalDevice</code>, <code>device</code>, <code>instance</code> are required. However, you should inform the library which Vulkan version do you use by setting <a class="el" href="struct_vma_allocator_create_info.html#ae0ffc55139b54520a6bb704b29ffc285" title="Optional. The highest version of Vulkan that the application is designed to use.">VmaAllocatorCreateInfo::vulkanApiVersion</a> and which extensions did you enable by setting <a class="el" href="struct_vma_allocator_create_info.html#a392ea2ecbaff93f91a7c49f735ad4346" title="Flags for created allocator. Use VmaAllocatorCreateFlagBits enum.">VmaAllocatorCreateInfo::flags</a> (like <a class="el" href="group__group__init.html#gga4f87c9100d154a65a4ad495f7763cf7ca5f1b28b0414319d1687e1f2b30ab0089">VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT</a> for VK_KHR_buffer_device_address). Otherwise, VMA would use only features of Vulkan 1.0 core with no extensions.</p>
<h2><a class="anchor" id="quick_start_initialization_selecting_vulkan_version"></a>
Selecting Vulkan version</h2>
<p >VMA supports Vulkan version down to 1.0, for backward compatibility. If you want to use higher version, you need to inform the library about it. This is a two-step proces.</p>
<p >VMA supports Vulkan version down to 1.0, for backward compatibility. If you want to use higher version, you need to inform the library about it. This is a two-step process.</p>
<p ><b>Step 1: Compile time.</b> By default, VMA compiles with code supporting the highest Vulkan version found in the included <code>&lt;vulkan/vulkan.h&gt;</code> that is also supported by the library. If this is OK, you don't need to do anything. However, if you want to compile VMA as if only some lower Vulkan version was available, define macro <code>VMA_VULKAN_VERSION</code> before every <code>#include "vk_mem_alloc.h"</code>. It should have decimal numeric value in form of ABBBCCC, where A = major, BBB = minor, CCC = patch Vulkan version. For example, to compile against Vulkan 1.2:</p>
<div class="fragment"><div class="line"><span class="preprocessor">#define VMA_VULKAN_VERSION 1002000 </span><span class="comment">// Vulkan 1.2</span></div>
<div class="line"><span class="preprocessor">#include &quot;<a class="code" href="vk__mem__alloc_8h.html">vk_mem_alloc.h</a>&quot;</span></div>

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2
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@ -72,7 +72,7 @@ $(function() {
<div class="textblock"><p >This library contains several functions that return information about its internal state, especially the amount of memory allocated from Vulkan.</p>
<h1><a class="anchor" id="statistics_numeric_statistics"></a>
Numeric statistics</h1>
<p >If you need to obtain basic statistics about memory usage per heap, together with current budget, you can call function <a class="el" href="group__group__stats.html#ga9f88db9d46a432c0ad7278cecbc5eaa7" title="Retrieves information about current memory usage and budget for all memory heaps.">vmaGetHeapBudgets()</a> and inspect structure <a class="el" href="struct_vma_budget.html" title="Statistics of current memory usage and available budget for a specific memory heap.">VmaBudget</a>. This is useful to keep track of memory usage and stay withing budget (see also <a class="el" href="staying_within_budget.html">Staying within budget</a>). Example:</p>
<p >If you need to obtain basic statistics about memory usage per heap, together with current budget, you can call function <a class="el" href="group__group__stats.html#ga9f88db9d46a432c0ad7278cecbc5eaa7" title="Retrieves information about current memory usage and budget for all memory heaps.">vmaGetHeapBudgets()</a> and inspect structure <a class="el" href="struct_vma_budget.html" title="Statistics of current memory usage and available budget for a specific memory heap.">VmaBudget</a>. This is useful to keep track of memory usage and stay within budget (see also <a class="el" href="staying_within_budget.html">Staying within budget</a>). Example:</p>
<div class="fragment"><div class="line">uint32_t heapIndex = ...</div>
<div class="line"> </div>
<div class="line">VmaBudget budgets[VK_MAX_MEMORY_HEAPS];</div>

2
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@ -159,7 +159,7 @@ Advanced data uploading</h1>
<p >For resources that you frequently write on CPU via mapped pointer and freqnently read on GPU e.g. as a uniform buffer (also called "dynamic"), multiple options are possible:</p>
<ol type="1">
<li>Easiest solution is to have one copy of the resource in <code>HOST_VISIBLE</code> memory, even if it means system RAM (not <code>DEVICE_LOCAL</code>) on systems with a discrete graphics card, and make the device reach out to that resource directly.<ul>
<li>Reads performed by the device will then go through PCI Express bus. The performace of this access may be limited, but it may be fine depending on the size of this resource (whether it is small enough to quickly end up in GPU cache) and the sparsity of access.</li>
<li>Reads performed by the device will then go through PCI Express bus. The performance of this access may be limited, but it may be fine depending on the size of this resource (whether it is small enough to quickly end up in GPU cache) and the sparsity of access.</li>
</ul>
</li>
<li>On systems with unified memory (e.g. AMD APU or Intel integrated graphics, mobile chips), a memory type may be available that is both <code>HOST_VISIBLE</code> (available for mapping) and <code>DEVICE_LOCAL</code> (fast to access from the GPU). Then, it is likely the best choice for such type of resource.</li>

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@ -89,7 +89,7 @@ Creating virtual block</h1>
<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>
<p ><a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object contains internal data structure that keeps track of free and occupied regions using the same code as the main Vulkan memory allocator. Similarly to <a class="el" href="struct_vma_allocation.html" title="Represents single memory allocation.">VmaAllocation</a> for standard GPU allocations, there is <a class="el" href="struct_vma_virtual_allocation.html" title="Represents single memory allocation done inside VmaVirtualBlock.">VmaVirtualAllocation</a> type that represents an opaque handle to an allocation withing the virtual block.</p>
<p ><a class="el" href="struct_vma_virtual_block.html" title="Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...">VmaVirtualBlock</a> object contains internal data structure that keeps track of free and occupied regions using the same code as the main Vulkan memory allocator. Similarly to <a class="el" href="struct_vma_allocation.html" title="Represents single memory allocation.">VmaAllocation</a> for standard GPU allocations, there is <a class="el" href="struct_vma_virtual_allocation.html" title="Represents single memory allocation done inside VmaVirtualBlock.">VmaVirtualAllocation</a> type that represents an opaque handle to an allocation within the virtual block.</p>
<p >In order to make such allocation:</p>
<ol type="1">
<li>Fill in <a class="el" href="struct_vma_virtual_allocation_create_info.html" title="Parameters of created virtual allocation to be passed to vmaVirtualAllocate().">VmaVirtualAllocationCreateInfo</a> structure.</li>

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@ -500,6 +500,9 @@ Functions</h2></td></tr>
<tr class="memitem:ga60d5d4803e3c82505a2bfddb929adb03"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03">vmaCreateAliasingBuffer</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, const VkBufferCreateInfo *pBufferCreateInfo, VkBuffer *pBuffer)</td></tr>
<tr class="memdesc:ga60d5d4803e3c82505a2bfddb929adb03"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a new <code>VkBuffer</code>, binds already created memory for it. <a href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03">More...</a><br /></td></tr>
<tr class="separator:ga60d5d4803e3c82505a2bfddb929adb03"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf0cf014344213e117bd9f9cf5f928122"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122">vmaCreateAliasingBuffer2</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, VkDeviceSize allocationLocalOffset, const VkBufferCreateInfo *pBufferCreateInfo, VkBuffer *pBuffer)</td></tr>
<tr class="memdesc:gaf0cf014344213e117bd9f9cf5f928122"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a new <code>VkBuffer</code>, binds already created memory for it. <a href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122">More...</a><br /></td></tr>
<tr class="separator:gaf0cf014344213e117bd9f9cf5f928122"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga0d9f4e4ba5bf9aab1f1c746387753d77"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77">vmaDestroyBuffer</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, VkBuffer buffer, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation)</td></tr>
<tr class="memdesc:ga0d9f4e4ba5bf9aab1f1c746387753d77"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroys Vulkan buffer and frees allocated memory. <a href="group__group__alloc.html#ga0d9f4e4ba5bf9aab1f1c746387753d77">More...</a><br /></td></tr>
<tr class="separator:ga0d9f4e4ba5bf9aab1f1c746387753d77"><td class="memSeparator" colspan="2">&#160;</td></tr>
@ -507,8 +510,11 @@ Functions</h2></td></tr>
<tr class="memdesc:ga02a94f25679275851a53e82eacbcfc73"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function similar to <a class="el" href="group__group__alloc.html#gac72ee55598617e8eecca384e746bab51" title="Creates a new VkBuffer, allocates and binds memory for it.">vmaCreateBuffer()</a>. <a href="group__group__alloc.html#ga02a94f25679275851a53e82eacbcfc73">More...</a><br /></td></tr>
<tr class="separator:ga02a94f25679275851a53e82eacbcfc73"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaebc4db1f94b53dba2338b4c0fd80d0dc"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#gaebc4db1f94b53dba2338b4c0fd80d0dc">vmaCreateAliasingImage</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, const VkImageCreateInfo *pImageCreateInfo, VkImage *pImage)</td></tr>
<tr class="memdesc:gaebc4db1f94b53dba2338b4c0fd80d0dc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function similar to <a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer()</a>. <a href="group__group__alloc.html#gaebc4db1f94b53dba2338b4c0fd80d0dc">More...</a><br /></td></tr>
<tr class="memdesc:gaebc4db1f94b53dba2338b4c0fd80d0dc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function similar to <a class="el" href="group__group__alloc.html#ga60d5d4803e3c82505a2bfddb929adb03" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer()</a> but for images. <a href="group__group__alloc.html#gaebc4db1f94b53dba2338b4c0fd80d0dc">More...</a><br /></td></tr>
<tr class="separator:gaebc4db1f94b53dba2338b4c0fd80d0dc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga69ac829f5bb0737449fa92c2d971f1bb"><td class="memItemLeft" align="right" valign="top">VkResult&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#ga69ac829f5bb0737449fa92c2d971f1bb">vmaCreateAliasingImage2</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation, VkDeviceSize allocationLocalOffset, const VkImageCreateInfo *pImageCreateInfo, VkImage *pImage)</td></tr>
<tr class="memdesc:ga69ac829f5bb0737449fa92c2d971f1bb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function similar to <a class="el" href="group__group__alloc.html#gaf0cf014344213e117bd9f9cf5f928122" title="Creates a new VkBuffer, binds already created memory for it.">vmaCreateAliasingBuffer2()</a> but for images. <a href="group__group__alloc.html#ga69ac829f5bb0737449fa92c2d971f1bb">More...</a><br /></td></tr>
<tr class="separator:ga69ac829f5bb0737449fa92c2d971f1bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__alloc.html#gae50d2cb3b4a3bfd4dd40987234e50e7e">vmaDestroyImage</a> (<a class="el" href="struct_vma_allocator.html">VmaAllocator</a> allocator, VkImage image, <a class="el" href="struct_vma_allocation.html">VmaAllocation</a> allocation)</td></tr>
<tr class="memdesc:gae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroys Vulkan image and frees allocated memory. <a href="group__group__alloc.html#gae50d2cb3b4a3bfd4dd40987234e50e7e">More...</a><br /></td></tr>
<tr class="separator:gae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="memSeparator" colspan="2">&#160;</td></tr>

74
include/vk_mem_alloc.h
View File

@ -25,7 +25,7 @@
/** \mainpage Vulkan Memory Allocator
<b>Version 3.0.1 (2022-05-26)</b>
<b>Version 3.1.0-development</b>
Copyright (c) 2017-2022 Advanced Micro Devices, Inc. All rights reserved. \n
License: MIT
@ -2341,6 +2341,8 @@ returned value is negative error code and `*pBuffer` is null.
If the function succeeded, you must destroy the buffer when you
no longer need it using `vkDestroyBuffer()`. If you want to also destroy the corresponding
allocation you can use convenience function vmaDestroyBuffer().
\note There is a new version of this function augmented with parameter `allocationLocalOffset` - see vmaCreateAliasingBuffer2().
*/
VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer(
VmaAllocator VMA_NOT_NULL allocator,
@ -2348,6 +2350,35 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer(
const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer);
/** \brief Creates a new `VkBuffer`, binds already created memory for it.
\param allocator
\param allocation Allocation that provides memory to be used for binding new buffer to it.
\param allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the allocation. Normally it should be 0.
\param pBufferCreateInfo
\param[out] pBuffer Buffer that was created.
This function automatically:
-# Creates buffer.
-# Binds the buffer with the supplied memory.
If any of these operations fail, buffer is not created,
returned value is negative error code and `*pBuffer` is null.
If the function succeeded, you must destroy the buffer when you
no longer need it using `vkDestroyBuffer()`. If you want to also destroy the corresponding
allocation you can use convenience function vmaDestroyBuffer().
\note This is a new version of the function augmented with parameter `allocationLocalOffset`.
*/
VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer2(
VmaAllocator VMA_NOT_NULL allocator,
VmaAllocation VMA_NOT_NULL allocation,
VkDeviceSize allocationLocalOffset,
const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer);
/** \brief Destroys Vulkan buffer and frees allocated memory.
This is just a convenience function equivalent to:
@ -2373,13 +2404,21 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateImage(
VmaAllocation VMA_NULLABLE* VMA_NOT_NULL pAllocation,
VmaAllocationInfo* VMA_NULLABLE pAllocationInfo);
/// Function similar to vmaCreateAliasingBuffer().
/// Function similar to vmaCreateAliasingBuffer() but for images.
VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage(
VmaAllocator VMA_NOT_NULL allocator,
VmaAllocation VMA_NOT_NULL allocation,
const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo,
VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage);
/// Function similar to vmaCreateAliasingBuffer2() but for images.
VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage2(
VmaAllocator VMA_NOT_NULL allocator,
VmaAllocation VMA_NOT_NULL allocation,
VkDeviceSize allocationLocalOffset,
const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo,
VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage);
/** \brief Destroys Vulkan image and frees allocated memory.
This is just a convenience function equivalent to:
@ -17180,9 +17219,20 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer(
const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer)
{
VMA_ASSERT(allocator && pBufferCreateInfo && pBuffer && allocation);
return vmaCreateAliasingBuffer2(allocator, allocation, 0, pBufferCreateInfo, pBuffer);
}
VMA_DEBUG_LOG("vmaCreateAliasingBuffer");
VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer2(
VmaAllocator VMA_NOT_NULL allocator,
VmaAllocation VMA_NOT_NULL allocation,
VkDeviceSize allocationLocalOffset,
const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo,
VkBuffer VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pBuffer)
{
VMA_ASSERT(allocator && pBufferCreateInfo && pBuffer && allocation);
VMA_ASSERT(allocationLocalOffset + pBufferCreateInfo->size <= allocation->GetSize());
VMA_DEBUG_LOG("vmaCreateAliasingBuffer2");
*pBuffer = VK_NULL_HANDLE;
@ -17208,7 +17258,7 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingBuffer(
if (res >= 0)
{
// 2. Bind buffer with memory.
res = allocator->BindBufferMemory(allocation, 0, *pBuffer, VMA_NULL);
res = allocator->BindBufferMemory(allocation, allocationLocalOffset, *pBuffer, VMA_NULL);
if (res >= 0)
{
return VK_SUCCESS;
@ -17344,12 +17394,22 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage(
VmaAllocation VMA_NOT_NULL allocation,
const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo,
VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage)
{
return vmaCreateAliasingImage2(allocator, allocation, 0, pImageCreateInfo, pImage);
}
VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage2(
VmaAllocator VMA_NOT_NULL allocator,
VmaAllocation VMA_NOT_NULL allocation,
VkDeviceSize allocationLocalOffset,
const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo,
VkImage VMA_NULLABLE_NON_DISPATCHABLE* VMA_NOT_NULL pImage)
{
VMA_ASSERT(allocator && pImageCreateInfo && pImage && allocation);
*pImage = VK_NULL_HANDLE;
VMA_DEBUG_LOG("vmaCreateImage");
VMA_DEBUG_LOG("vmaCreateImage2");
if (pImageCreateInfo->extent.width == 0 ||
pImageCreateInfo->extent.height == 0 ||
@ -17371,7 +17431,7 @@ VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAliasingImage(
if (res >= 0)
{
// 2. Bind image with memory.
res = allocator->BindImageMemory(allocation, 0, *pImage, VMA_NULL);
res = allocator->BindImageMemory(allocation, allocationLocalOffset, *pImage, VMA_NULL);
if (res >= 0)
{
return VK_SUCCESS;