eden-emu/VulkanMemoryAllocator
14
0
Fork 0
mirror of https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git synced 2025-05-15 01:08:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Deleted the whole Record&Replay feature. COMPATIBILITY BREAKING!

Browse source 
Removed from the API: VmaAllocatorCreateInfo::pRecordSettings, VmaRecordSettings, VmaRecordFlagBits, VmaRecordFlags.
Regenerated documentation. Updated README.
This commit is contained in:
Adam Sawicki 2022-01-10 18:11:09 +01:00
parent 1e97603ab8
commit a8581fc96c
76 changed files with 493 additions and 8688 deletions
Download patch file Download diff file Expand all files Collapse all files

22
docs/html/virtual_allocator.html
View file

@ -83,8 +83,8 @@ Creating virtual block</h1>
<div class="line"> </div>
<div class="line"><a class="code hl_struct" href="struct_vma_virtual_block.html">VmaVirtualBlock</a> block;</div>
<div class="line">VkResult res = <a class="code hl_function" href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b">vmaCreateVirtualBlock</a>(&amp;blockCreateInfo, &amp;block);</div>
<div class="ttc" id="astruct_vma_virtual_block_create_info_html"><div class="ttname"><a href="struct_vma_virtual_block_create_info.html">VmaVirtualBlockCreateInfo</a></div><div class="ttdoc">Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1426</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:1432</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:1318</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:1324</div></div>
<div class="ttc" id="astruct_vma_virtual_block_html"><div class="ttname"><a href="struct_vma_virtual_block.html">VmaVirtualBlock</a></div><div class="ttdoc">Handle to a virtual block object that allows to use core allocation algorithm without allocating any ...</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ab585754076877265fdae33e5c40ef13b"><div class="ttname"><a href="vk__mem__alloc_8h.html#ab585754076877265fdae33e5c40ef13b">vmaCreateVirtualBlock</a></div><div class="ttdeci">VkResult vmaCreateVirtualBlock(const VmaVirtualBlockCreateInfo *pCreateInfo, VmaVirtualBlock *pVirtualBlock)</div><div class="ttdoc">Creates new VmaVirtualBlock object.</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_making_virtual_allocations"></a>
@ -109,8 +109,8 @@ Making virtual allocations</h1>
<div class="line">{</div>
<div class="line"> <span class="comment">// Allocation failed - no space for it could be found. Handle this error!</span></div>
<div class="line">}</div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html">VmaVirtualAllocationCreateInfo</a></div><div class="ttdoc">Parameters of created virtual allocation to be passed to vmaVirtualAllocate().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1447</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:1452</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:1339</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:1344</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a1c15925e6745dacee0cfc877fffecec2"><div class="ttname"><a href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2">vmaVirtualAllocate</a></div><div class="ttdeci">VkResult vmaVirtualAllocate(VmaVirtualBlock virtualBlock, const VmaVirtualAllocationCreateInfo *pCreateInfo, VkDeviceSize *pOffset)</div><div class="ttdoc">Allocates new virtual allocation inside given VmaVirtualBlock.</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_deallocation"></a>
Deallocation</h1>
@ -137,8 +137,8 @@ Allocation parameters</h1>
<div class="line"><span class="keyword">delete</span> (CustomAllocData*)allocInfo.<a class="code hl_variable" href="struct_vma_virtual_allocation_info.html#a41d5cb09357656411653d82fee436f45">pUserData</a>;</div>
<div class="line"> </div>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a13f01c44b3c1a06e695f1f5d24b80639">vmaVirtualFree</a>(block, allocOffset);</div>
<div class="ttc" id="astruct_vma_virtual_allocation_info_html"><div class="ttname"><a href="struct_vma_virtual_allocation_info.html">VmaVirtualAllocationInfo</a></div><div class="ttdoc">Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1470</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:1480</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:1362</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:1372</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_ab5fcb961ffea69023e7e0ea100bdad8e"><div class="ttname"><a href="vk__mem__alloc_8h.html#ab5fcb961ffea69023e7e0ea100bdad8e">vmaGetVirtualAllocationInfo</a></div><div class="ttdeci">void vmaGetVirtualAllocationInfo(VmaVirtualBlock virtualBlock, VkDeviceSize offset, VmaVirtualAllocationInfo *pVirtualAllocInfo)</div><div class="ttdoc">Returns information about a specific virtual allocation within a virtual block, like its size and pUs...</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_alignment_and_units"></a>
Alignment and units</h1>
@ -149,7 +149,7 @@ Alignment and units</h1>
<div class="line"> </div>
<div class="line">VkDeviceSize allocOffset;</div>
<div class="line">res = <a class="code hl_function" href="vk__mem__alloc_8h.html#a1c15925e6745dacee0cfc877fffecec2">vmaVirtualAllocate</a>(block, &amp;allocCreateInfo, &amp;allocOffset);</div>
<div class="ttc" id="astruct_vma_virtual_allocation_create_info_html_a9d19709872fc1904a105079e1c885821"><div class="ttname"><a href="struct_vma_virtual_allocation_create_info.html#a9d19709872fc1904a105079e1c885821">VmaVirtualAllocationCreateInfo::alignment</a></div><div class="ttdeci">VkDeviceSize alignment</div><div class="ttdoc">Required alignment of the allocation. Optional.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1457</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:1349</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>
@ -163,16 +163,16 @@ Statistics</h1>
<div class="line"><a class="code hl_function" href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a">vmaCalculateVirtualBlockStats</a>(block, &amp;statInfo);</div>
<div class="line">printf(<span class="stringliteral">&quot;My virtual block has %llu bytes used by %u virtual allocations\n&quot;</span>,</div>
<div class="line"> statInfo.<a class="code hl_variable" href="struct_vma_stat_info.html#ab0c6c73837e5a70c749fbd4f6064895a">usedBytes</a>, statInfo.<a class="code hl_variable" href="struct_vma_stat_info.html#a537741e4d5cdddc1c0ab95ec650afaff">allocationCount</a>);</div>
<div class="ttc" id="astruct_vma_stat_info_html"><div class="ttname"><a href="struct_vma_stat_info.html">VmaStatInfo</a></div><div class="ttdoc">Calculated statistics of memory usage in entire allocator.</div><div class="ttdef"><b>Definition:</b> vk_mem_alloc.h:1034</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:1038</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:1042</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:953</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:957</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:961</div></div>
<div class="ttc" id="avk__mem__alloc_8h_html_a95169b4730e94757897470086ec2768a"><div class="ttname"><a href="vk__mem__alloc_8h.html#a95169b4730e94757897470086ec2768a">vmaCalculateVirtualBlockStats</a></div><div class="ttdeci">void vmaCalculateVirtualBlockStats(VmaVirtualBlock virtualBlock, VmaStatInfo *pStatInfo)</div><div class="ttdoc">Calculates and returns statistics about virtual allocations and memory usage in given VmaVirtualBlock...</div></div>
</div><!-- fragment --><p >You can also request a full list of allocations and free regions as a string in JSON format by calling <a class="el" href="vk__mem__alloc_8h.html#a52d810e1222c592e5d80556ad005f1e6" title="Builds and returns a null-terminated string in JSON format with information about given VmaVirtualBlo...">vmaBuildVirtualBlockStatsString()</a>. Returned string must be later freed using <a class="el" href="vk__mem__alloc_8h.html#a47fb8d8aa69df4a7c23a9719b4080623" title="Frees a string returned by vmaBuildVirtualBlockStatsString().">vmaFreeVirtualBlockStatsString()</a>. The format of this string differs from the one returned by the main Vulkan allocator, but it is similar.</p>
<h1><a class="anchor" id="virtual_allocator_additional_considerations"></a>
Additional considerations</h1>
<p >The "virtual allocator" functionality is implemented on a level of individual memory blocks. Keeping track of a whole collection of blocks, allocating new ones when out of free space, deleting empty ones, and deciding which one to try first for a new allocation must be implemented by the user.</p>
<p >Alternative allocation algorithms are supported, just like in custom pools of the real GPU memory. See enum <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bca" title="Flags to be passed as VmaVirtualBlockCreateInfo::flags.">VmaVirtualBlockCreateFlagBits</a> to learn how to specify them (e.g. <a class="el" href="vk__mem__alloc_8h.html#a88bcf8c1cd3bb1610ff7343811c65bcaae6423e2fa2f3c9211b21c819e3f10f96" title="Enables alternative, linear allocation algorithm in this virtual block.">VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT</a>). You can find their description in chapter <a class="el" href="custom_memory_pools.html">Custom memory pools</a>. Allocation strategies are also supported. See enum <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6" title="Flags to be passed as VmaVirtualAllocationCreateInfo::flags.">VmaVirtualAllocationCreateFlagBits</a> to learn how to specify them (e.g. <a class="el" href="vk__mem__alloc_8h.html#a2e9c64d405b14156fea7e10c4ad06cb6a562d10a46012719d33167d3dc5dbbf9b" title="Allocation strategy that tries to minimize allocation time.">VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT</a>).</p>
<p >Following features are supported only by the allocator of the real GPU memory and not by virtual allocations: buffer-image granularity, <a class="el" href="lost_allocations.html">Lost allocations</a>, <code>VMA_DEBUG_MARGIN</code>, <code>VMA_MIN_ALIGNMENT</code>. </p>
<p >Following features are supported only by the allocator of the real GPU memory and not by virtual allocations: buffer-image granularity, <code>VMA_DEBUG_MARGIN</code>, <code>VMA_MIN_ALIGNMENT</code>. </p>
</div></div><!-- contents -->
</div><!-- PageDoc -->
<!-- start footer part -->