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Documentation: Added mention of VK_AMD_memory_overallocation_behavior extension.

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Adam Sawicki 2018-11-20 11:33:07 +01:00
parent df2404b6a5
commit 3b392258e2
3 changed files with 91 additions and 90 deletions
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2
docs/html/struct_vma_allocator_create_info.html
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@ -216,7 +216,7 @@ Public Attributes</h2></td></tr>
<li>If user tries to allocate more memory from that heap using this allocator, the allocation fails with <code>VK_ERROR_OUT_OF_DEVICE_MEMORY</code>.</li>
<li>If the limit is smaller than heap size reported in <code>VkMemoryHeap::size</code>, the value of this limit will be reported instead when using <a class="el" href="vk__mem__alloc_8h.html#ab88db292a17974f911182543fda52d19">vmaGetMemoryProperties()</a>.</li>
</ul>
<p>Warning! Using this feature may not be equivalent to installing a GPU with smaller amount of memory, because graphics driver doesn't necessary fail new allocations with <code>VK_ERROR_OUT_OF_DEVICE_MEMORY</code> result when memory capacity is exceeded. It may return success and just silently migrate some device memory blocks to system RAM. </p>
<p>Warning! Using this feature may not be equivalent to installing a GPU with smaller amount of memory, because graphics driver doesn't necessary fail new allocations with <code>VK_ERROR_OUT_OF_DEVICE_MEMORY</code> result when memory capacity is exceeded. It may return success and just silently migrate some device memory blocks to system RAM. This driver behavior can also be controlled using VK_AMD_memory_overallocation_behavior extension. </p>
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docs/html/vk__mem__alloc_8h_source.html
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src/vk_mem_alloc.h
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@ -1688,7 +1688,8 @@ typedef struct VmaAllocatorCreateInfo
smaller amount of memory, because graphics driver doesn't necessary fail new
allocations with `VK_ERROR_OUT_OF_DEVICE_MEMORY` result when memory capacity is
exceeded. It may return success and just silently migrate some device memory
blocks to system RAM.
blocks to system RAM. This driver behavior can also be controlled using
VK_AMD_memory_overallocation_behavior extension.
*/
const VkDeviceSize* pHeapSizeLimit;
/** \brief Pointers to Vulkan functions. Can be null if you leave define `VMA_STATIC_VULKAN_FUNCTIONS 1`.