mirror of
https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git
synced 2024-11-26 08:34:34 +00:00
Updates in documentation.
This commit is contained in:
parent
6530fe3a38
commit
9bb910e63c
@ -279,15 +279,9 @@ $(function() {
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<li>vkGetBufferMemoryRequirements
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a5b92901df89a4194b0d12f6071d4d143">VmaVulkanFunctions</a>
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||||
</li>
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||||
<li>vkGetBufferMemoryRequirements2KHR
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a9d8d1b05d2b1e7e1d9b27f6f585acf9c">VmaVulkanFunctions</a>
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</li>
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||||
<li>vkGetImageMemoryRequirements
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a475f6f49f8debe4d10800592606d53f4">VmaVulkanFunctions</a>
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</li>
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<li>vkGetImageMemoryRequirements2KHR
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a9cdcdc1e2b2ea7c571f7d27e30ba6875">VmaVulkanFunctions</a>
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</li>
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<li>vkGetPhysicalDeviceMemoryProperties
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: <a class="el" href="struct_vma_vulkan_functions.html#a60d25c33bba06bb8592e6875cbaa9830">VmaVulkanFunctions</a>
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</li>
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|
@ -279,15 +279,9 @@ $(function() {
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<li>vkGetBufferMemoryRequirements
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a5b92901df89a4194b0d12f6071d4d143">VmaVulkanFunctions</a>
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||||
</li>
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<li>vkGetBufferMemoryRequirements2KHR
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a9d8d1b05d2b1e7e1d9b27f6f585acf9c">VmaVulkanFunctions</a>
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||||
</li>
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||||
<li>vkGetImageMemoryRequirements
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a475f6f49f8debe4d10800592606d53f4">VmaVulkanFunctions</a>
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</li>
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<li>vkGetImageMemoryRequirements2KHR
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a9cdcdc1e2b2ea7c571f7d27e30ba6875">VmaVulkanFunctions</a>
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</li>
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<li>vkGetPhysicalDeviceMemoryProperties
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||||
: <a class="el" href="struct_vma_vulkan_functions.html#a60d25c33bba06bb8592e6875cbaa9830">VmaVulkanFunctions</a>
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</li>
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|
@ -91,6 +91,7 @@ Features not supported</h1>
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<p>Features deliberately excluded from the scope of this library:</p>
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<ul>
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<li>Data transfer - issuing commands that transfer data between buffers or images, any usage of <code>VkCommandList</code> or <code>VkCommandQueue</code> and related synchronization is responsibility of the user.</li>
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<li>Allocations for imported/exported external memory. They tend to require explicit memory type index and dedicated allocation anyway, so they don't interact with main features of this library. Such special purpose allocations should be made manually, using <code>vkCreateBuffer()</code> and <code>vkAllocateMemory()</code>.</li>
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<li>Support for any programming languages other than C/C++. Bindings to other languages are welcomed as external projects. </li>
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</ul>
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</div></div><!-- contents -->
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@ -101,6 +101,9 @@ $(function() {
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<li>VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT
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: <a class="el" href="vk__mem__alloc_8h.html#a4f87c9100d154a65a4ad495f7763cf7cace7da7cc6e71a625dfa763c55a597878">vk_mem_alloc.h</a>
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</li>
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<li>VMA_DEDICATED_ALLOCATION
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: <a class="el" href="vk__mem__alloc_8h.html#af7b860e63b96d11e44ae8587ba06bbf4">vk_mem_alloc.h</a>
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</li>
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<li>VMA_MEMORY_USAGE_CPU_ONLY
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: <a class="el" href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5">vk_mem_alloc.h</a>
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</li>
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@ -59,6 +59,9 @@ $(function() {
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<div class="contents">
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 <ul>
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<li>VMA_DEDICATED_ALLOCATION
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: <a class="el" href="vk__mem__alloc_8h.html#af7b860e63b96d11e44ae8587ba06bbf4">vk_mem_alloc.h</a>
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</li>
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<li>VMA_STATS_STRING_ENABLED
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: <a class="el" href="vk__mem__alloc_8h.html#ae25f0d55fd91cb166f002b63244800e1">vk_mem_alloc.h</a>
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</li>
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@ -12,9 +12,7 @@ var searchData=
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||||
['vkdestroyimage',['vkDestroyImage',['../struct_vma_vulkan_functions.html#a90b898227039b1dcb3520f6e91f09ffa',1,'VmaVulkanFunctions']]],
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['vkfreememory',['vkFreeMemory',['../struct_vma_vulkan_functions.html#a4c658701778564d62034255b5dda91b4',1,'VmaVulkanFunctions']]],
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['vkgetbuffermemoryrequirements',['vkGetBufferMemoryRequirements',['../struct_vma_vulkan_functions.html#a5b92901df89a4194b0d12f6071d4d143',1,'VmaVulkanFunctions']]],
|
||||
['vkgetbuffermemoryrequirements2khr',['vkGetBufferMemoryRequirements2KHR',['../struct_vma_vulkan_functions.html#a9d8d1b05d2b1e7e1d9b27f6f585acf9c',1,'VmaVulkanFunctions']]],
|
||||
['vkgetimagememoryrequirements',['vkGetImageMemoryRequirements',['../struct_vma_vulkan_functions.html#a475f6f49f8debe4d10800592606d53f4',1,'VmaVulkanFunctions']]],
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||||
['vkgetimagememoryrequirements2khr',['vkGetImageMemoryRequirements2KHR',['../struct_vma_vulkan_functions.html#a9cdcdc1e2b2ea7c571f7d27e30ba6875',1,'VmaVulkanFunctions']]],
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['vkgetphysicaldevicememoryproperties',['vkGetPhysicalDeviceMemoryProperties',['../struct_vma_vulkan_functions.html#a60d25c33bba06bb8592e6875cbaa9830',1,'VmaVulkanFunctions']]],
|
||||
['vkgetphysicaldeviceproperties',['vkGetPhysicalDeviceProperties',['../struct_vma_vulkan_functions.html#a77b7a74082823e865dd6546623468f96',1,'VmaVulkanFunctions']]],
|
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['vkmapmemory',['vkMapMemory',['../struct_vma_vulkan_functions.html#ab5c1f38dea3a2cf00dc9eb4f57218c49',1,'VmaVulkanFunctions']]],
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@ -29,6 +27,7 @@ var searchData=
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['vma_5fallocator_5fcreate_5fexternally_5fsynchronized_5fbit',['VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT',['../vk__mem__alloc_8h.html#a4f87c9100d154a65a4ad495f7763cf7ca4816ddaed324ba110172ca608a20f29d',1,'vk_mem_alloc.h']]],
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['vma_5fallocator_5fcreate_5fflag_5fbits_5fmax_5fenum',['VMA_ALLOCATOR_CREATE_FLAG_BITS_MAX_ENUM',['../vk__mem__alloc_8h.html#a4f87c9100d154a65a4ad495f7763cf7cae4d5ad929caba5f23eb502b13bd5286c',1,'vk_mem_alloc.h']]],
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['vma_5fallocator_5fcreate_5fkhr_5fdedicated_5fallocation_5fbit',['VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT',['../vk__mem__alloc_8h.html#a4f87c9100d154a65a4ad495f7763cf7cace7da7cc6e71a625dfa763c55a597878',1,'vk_mem_alloc.h']]],
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['vma_5fdedicated_5fallocation',['VMA_DEDICATED_ALLOCATION',['../vk__mem__alloc_8h.html#af7b860e63b96d11e44ae8587ba06bbf4',1,'vk_mem_alloc.h']]],
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['vma_5fmemory_5fusage_5fcpu_5fonly',['VMA_MEMORY_USAGE_CPU_ONLY',['../vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5',1,'vk_mem_alloc.h']]],
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['vma_5fmemory_5fusage_5fcpu_5fto_5fgpu',['VMA_MEMORY_USAGE_CPU_TO_GPU',['../vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cca9066b52c5a7079bb74a69aaf8b92ff67',1,'vk_mem_alloc.h']]],
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['vma_5fmemory_5fusage_5fgpu_5fonly',['VMA_MEMORY_USAGE_GPU_ONLY',['../vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305ccac6b5dc1432d88647aa4cd456246eadf7',1,'vk_mem_alloc.h']]],
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@ -1,4 +1,5 @@
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var searchData=
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[
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['vma_5fdedicated_5fallocation',['VMA_DEDICATED_ALLOCATION',['../vk__mem__alloc_8h.html#af7b860e63b96d11e44ae8587ba06bbf4',1,'vk_mem_alloc.h']]],
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['vma_5fstats_5fstring_5fenabled',['VMA_STATS_STRING_ENABLED',['../vk__mem__alloc_8h.html#ae25f0d55fd91cb166f002b63244800e1',1,'vk_mem_alloc.h']]]
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];
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@ -9,9 +9,7 @@ var searchData=
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['vkdestroyimage',['vkDestroyImage',['../struct_vma_vulkan_functions.html#a90b898227039b1dcb3520f6e91f09ffa',1,'VmaVulkanFunctions']]],
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['vkfreememory',['vkFreeMemory',['../struct_vma_vulkan_functions.html#a4c658701778564d62034255b5dda91b4',1,'VmaVulkanFunctions']]],
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['vkgetbuffermemoryrequirements',['vkGetBufferMemoryRequirements',['../struct_vma_vulkan_functions.html#a5b92901df89a4194b0d12f6071d4d143',1,'VmaVulkanFunctions']]],
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||||
['vkgetbuffermemoryrequirements2khr',['vkGetBufferMemoryRequirements2KHR',['../struct_vma_vulkan_functions.html#a9d8d1b05d2b1e7e1d9b27f6f585acf9c',1,'VmaVulkanFunctions']]],
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||||
['vkgetimagememoryrequirements',['vkGetImageMemoryRequirements',['../struct_vma_vulkan_functions.html#a475f6f49f8debe4d10800592606d53f4',1,'VmaVulkanFunctions']]],
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||||
['vkgetimagememoryrequirements2khr',['vkGetImageMemoryRequirements2KHR',['../struct_vma_vulkan_functions.html#a9cdcdc1e2b2ea7c571f7d27e30ba6875',1,'VmaVulkanFunctions']]],
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['vkgetphysicaldevicememoryproperties',['vkGetPhysicalDeviceMemoryProperties',['../struct_vma_vulkan_functions.html#a60d25c33bba06bb8592e6875cbaa9830',1,'VmaVulkanFunctions']]],
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['vkgetphysicaldeviceproperties',['vkGetPhysicalDeviceProperties',['../struct_vma_vulkan_functions.html#a77b7a74082823e865dd6546623468f96',1,'VmaVulkanFunctions']]],
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['vkmapmemory',['vkMapMemory',['../struct_vma_vulkan_functions.html#ab5c1f38dea3a2cf00dc9eb4f57218c49',1,'VmaVulkanFunctions']]],
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@ -74,9 +74,7 @@ $(function() {
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<tr class="even"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a90b898227039b1dcb3520f6e91f09ffa">vkDestroyImage</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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<tr><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>
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<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>
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||||
<tr><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>
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||||
<tr class="even"><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>
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||||
<tr><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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||||
<tr><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>
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<tr class="even"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a60d25c33bba06bb8592e6875cbaa9830">vkGetPhysicalDeviceMemoryProperties</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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<tr><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#a77b7a74082823e865dd6546623468f96">vkGetPhysicalDeviceProperties</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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<tr class="even"><td class="entry"><a class="el" href="struct_vma_vulkan_functions.html#ab5c1f38dea3a2cf00dc9eb4f57218c49">vkMapMemory</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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@ -101,10 +101,6 @@ Public Attributes</h2></td></tr>
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<tr class="separator:a23ebe70be515b9b5010a1d691200e325"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a90b898227039b1dcb3520f6e91f09ffa"><td class="memItemLeft" align="right" valign="top">PFN_vkDestroyImage </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_vulkan_functions.html#a90b898227039b1dcb3520f6e91f09ffa">vkDestroyImage</a></td></tr>
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<tr class="separator:a90b898227039b1dcb3520f6e91f09ffa"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a9d8d1b05d2b1e7e1d9b27f6f585acf9c"><td class="memItemLeft" align="right" valign="top">PFN_vkGetBufferMemoryRequirements2KHR </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_vulkan_functions.html#a9d8d1b05d2b1e7e1d9b27f6f585acf9c">vkGetBufferMemoryRequirements2KHR</a></td></tr>
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<tr class="separator:a9d8d1b05d2b1e7e1d9b27f6f585acf9c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a9cdcdc1e2b2ea7c571f7d27e30ba6875"><td class="memItemLeft" align="right" valign="top">PFN_vkGetImageMemoryRequirements2KHR </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_vulkan_functions.html#a9cdcdc1e2b2ea7c571f7d27e30ba6875">vkGetImageMemoryRequirements2KHR</a></td></tr>
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<tr class="separator:a9cdcdc1e2b2ea7c571f7d27e30ba6875"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Pointers to some Vulkan functions - a subset used by the library. </p>
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@ -234,20 +230,6 @@ Public Attributes</h2></td></tr>
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</table>
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</div><div class="memdoc">
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</div>
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</div>
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<a id="a9d8d1b05d2b1e7e1d9b27f6f585acf9c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a9d8d1b05d2b1e7e1d9b27f6f585acf9c">◆ </a></span>vkGetBufferMemoryRequirements2KHR</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">PFN_vkGetBufferMemoryRequirements2KHR VmaVulkanFunctions::vkGetBufferMemoryRequirements2KHR</td>
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</tr>
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</table>
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</div><div class="memdoc">
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</div>
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</div>
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<a id="a475f6f49f8debe4d10800592606d53f4"></a>
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@ -262,20 +244,6 @@ Public Attributes</h2></td></tr>
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</table>
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</div><div class="memdoc">
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</div>
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</div>
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<a id="a9cdcdc1e2b2ea7c571f7d27e30ba6875"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a9cdcdc1e2b2ea7c571f7d27e30ba6875">◆ </a></span>vkGetImageMemoryRequirements2KHR</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">PFN_vkGetImageMemoryRequirements2KHR VmaVulkanFunctions::vkGetImageMemoryRequirements2KHR</td>
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</tr>
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</table>
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</div><div class="memdoc">
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</div>
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</div>
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<a id="a60d25c33bba06bb8592e6875cbaa9830"></a>
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@ -115,7 +115,7 @@ Direct access versus transfer</h2>
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<li>Create just single copy using <a class="el" href="vk__mem__alloc_8h.html#aa5846affa1e9da3800e3e78fae2305cca7b586d2fdaf82a463b58f581ed72be27">VMA_MEMORY_USAGE_GPU_TO_CPU</a>, write to it directly on GPU, map it and read it on CPU.</li>
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</ol>
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<p>You should take some measurements to decide which option is faster in case of your specific resource.</p>
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<p>If you don't want to specialize your code for specific types of GPUs, yon can still make an simple optimization for cases when your resource ends up in mappable memory to use it directly in this case instead of creating CPU-side staging copy. For details see <a class="el" href="memory_mapping.html#memory_mapping_finding_if_memory_mappable">Finding out if memory is mappable</a>. </p>
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<p>If you don't want to specialize your code for specific types of GPUs, you can still make an simple optimization for cases when your resource ends up in mappable memory to use it directly in this case instead of creating CPU-side staging copy. For details see <a class="el" href="memory_mapping.html#memory_mapping_finding_if_memory_mappable">Finding out if memory is mappable</a>. </p>
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</div></div><!-- contents -->
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<!-- start footer part -->
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<hr class="footer"/><address class="footer"><small>
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@ -109,6 +109,8 @@ Classes</h2></td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
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Macros</h2></td></tr>
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<tr class="memitem:af7b860e63b96d11e44ae8587ba06bbf4"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#af7b860e63b96d11e44ae8587ba06bbf4">VMA_DEDICATED_ALLOCATION</a>   0</td></tr>
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<tr class="separator:af7b860e63b96d11e44ae8587ba06bbf4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae25f0d55fd91cb166f002b63244800e1"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="vk__mem__alloc_8h.html#ae25f0d55fd91cb166f002b63244800e1">VMA_STATS_STRING_ENABLED</a>   1</td></tr>
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<tr class="separator:ae25f0d55fd91cb166f002b63244800e1"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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@ -306,6 +308,20 @@ Functions</h2></td></tr>
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<tr class="separator:ae50d2cb3b4a3bfd4dd40987234e50e7e"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
|
||||
<h2 class="groupheader">Macro Definition Documentation</h2>
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||||
<a id="af7b860e63b96d11e44ae8587ba06bbf4"></a>
|
||||
<h2 class="memtitle"><span class="permalink"><a href="#af7b860e63b96d11e44ae8587ba06bbf4">◆ </a></span>VMA_DEDICATED_ALLOCATION</h2>
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||||
<div class="memitem">
|
||||
<div class="memproto">
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||||
<table class="memname">
|
||||
<tr>
|
||||
<td class="memname">#define VMA_DEDICATED_ALLOCATION   0</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
|
||||
</div>
|
||||
</div>
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||||
<a id="ae25f0d55fd91cb166f002b63244800e1"></a>
|
||||
<h2 class="memtitle"><span class="permalink"><a href="#ae25f0d55fd91cb166f002b63244800e1">◆ </a></span>VMA_STATS_STRING_ENABLED</h2>
|
||||
|
||||
@ -731,14 +747,14 @@ Functions</h2></td></tr>
|
||||
<p>Usage:</p>
|
||||
<ul>
|
||||
<li>Resources written and read by device, e.g. images used as attachments.</li>
|
||||
<li>Resources transferred from host once (immutable) or infrequently and read by device multiple times, e.g. textures to be sampled, vertex buffers, uniform (constant) buffers, and majority of other types of resources used by device.</li>
|
||||
<li>Resources transferred from host once (immutable) or infrequently and read by device multiple times, e.g. textures to be sampled, vertex buffers, uniform (constant) buffers, and majority of other types of resources used on GPU.</li>
|
||||
</ul>
|
||||
<p>Allocation may still end up in <code>HOST_VISIBLE</code> memory on some implementations. In such case, you are free to map it. You can use <a class="el" href="vk__mem__alloc_8h.html#ad9889c10c798b040d59c92f257cae597a11da372cc3a82931c5e5d6146cd9dd1f" title="Set this flag to use a memory that will be persistently mapped and retrieve pointer to it...">VMA_ALLOCATION_CREATE_MAPPED_BIT</a> with this usage type. </p>
|
||||
</td></tr>
|
||||
<tr><td class="fieldname"><a id="aa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5"></a>VMA_MEMORY_USAGE_CPU_ONLY </td><td class="fielddoc"><p>Memory will be mappable on host. It usually means CPU (system) memory. Resources created in this pool may still be accessible to the device, but access to them can be slower. Guarantees to be <code>HOST_VISIBLE</code> and <code>HOST_COHERENT</code>. CPU read may be uncached. It is roughly equivalent of <code>D3D12_HEAP_TYPE_UPLOAD</code>.</p>
|
||||
<tr><td class="fieldname"><a id="aa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5"></a>VMA_MEMORY_USAGE_CPU_ONLY </td><td class="fielddoc"><p>Memory will be mappable on host. It usually means CPU (system) memory. Guarantees to be <code>HOST_VISIBLE</code> and <code>HOST_COHERENT</code>. CPU access is typically uncached. Writes may be write-combined. Resources created in this pool may still be accessible to the device, but access to them can be slow. It is roughly equivalent of <code>D3D12_HEAP_TYPE_UPLOAD</code>.</p>
|
||||
<p>Usage: Staging copy of resources used as transfer source. </p>
|
||||
</td></tr>
|
||||
<tr><td class="fieldname"><a id="aa5846affa1e9da3800e3e78fae2305cca9066b52c5a7079bb74a69aaf8b92ff67"></a>VMA_MEMORY_USAGE_CPU_TO_GPU </td><td class="fielddoc"><p>Memory that is both mappable on host (guarantees to be <code>HOST_VISIBLE</code>) and preferably fast to access by GPU. CPU reads may be uncached and very slow.</p>
|
||||
<tr><td class="fieldname"><a id="aa5846affa1e9da3800e3e78fae2305cca9066b52c5a7079bb74a69aaf8b92ff67"></a>VMA_MEMORY_USAGE_CPU_TO_GPU </td><td class="fielddoc"><p>Memory that is both mappable on host (guarantees to be <code>HOST_VISIBLE</code>) and preferably fast to access by GPU. CPU access is typically uncached. Writes may be write-combined.</p>
|
||||
<p>Usage: Resources written frequently by host (dynamic), read by device. E.g. textures, vertex buffers, uniform buffers updated every frame or every draw call. </p>
|
||||
</td></tr>
|
||||
<tr><td class="fieldname"><a id="aa5846affa1e9da3800e3e78fae2305cca7b586d2fdaf82a463b58f581ed72be27"></a>VMA_MEMORY_USAGE_GPU_TO_CPU </td><td class="fielddoc"><p>Memory mappable on host (guarantees to be <code>HOST_VISIBLE</code>) and cached. It is roughly equivalent of <code>D3D12_HEAP_TYPE_READBACK</code>.</p>
|
||||
|
File diff suppressed because one or more lines are too long
@ -932,7 +932,7 @@ solutions are possible:
|
||||
You should take some measurements to decide which option is faster in case of your specific
|
||||
resource.
|
||||
|
||||
If you don't want to specialize your code for specific types of GPUs, yon can still make
|
||||
If you don't want to specialize your code for specific types of GPUs, you can still make
|
||||
an simple optimization for cases when your resource ends up in mappable memory to use it
|
||||
directly in this case instead of creating CPU-side staging copy.
|
||||
For details see [Finding out if memory is mappable](@ref memory_mapping_finding_if_memory_mappable).
|
||||
@ -1070,6 +1070,10 @@ Features deliberately excluded from the scope of this library:
|
||||
|
||||
- Data transfer - issuing commands that transfer data between buffers or images, any usage of
|
||||
`VkCommandList` or `VkCommandQueue` and related synchronization is responsibility of the user.
|
||||
- Allocations for imported/exported external memory. They tend to require
|
||||
explicit memory type index and dedicated allocation anyway, so they don't
|
||||
interact with main features of this library. Such special purpose allocations
|
||||
should be made manually, using `vkCreateBuffer()` and `vkAllocateMemory()`.
|
||||
- Support for any programming languages other than C/C++.
|
||||
Bindings to other languages are welcomed as external projects.
|
||||
|
||||
@ -1377,7 +1381,7 @@ typedef enum VmaMemoryUsage
|
||||
- Resources written and read by device, e.g. images used as attachments.
|
||||
- Resources transferred from host once (immutable) or infrequently and read by
|
||||
device multiple times, e.g. textures to be sampled, vertex buffers, uniform
|
||||
(constant) buffers, and majority of other types of resources used by device.
|
||||
(constant) buffers, and majority of other types of resources used on GPU.
|
||||
|
||||
Allocation may still end up in `HOST_VISIBLE` memory on some implementations.
|
||||
In such case, you are free to map it.
|
||||
@ -1386,9 +1390,9 @@ typedef enum VmaMemoryUsage
|
||||
VMA_MEMORY_USAGE_GPU_ONLY = 1,
|
||||
/** Memory will be mappable on host.
|
||||
It usually means CPU (system) memory.
|
||||
Resources created in this pool may still be accessible to the device, but access to them can be slower.
|
||||
Guarantees to be `HOST_VISIBLE` and `HOST_COHERENT`.
|
||||
CPU read may be uncached.
|
||||
CPU access is typically uncached. Writes may be write-combined.
|
||||
Resources created in this pool may still be accessible to the device, but access to them can be slow.
|
||||
It is roughly equivalent of `D3D12_HEAP_TYPE_UPLOAD`.
|
||||
|
||||
Usage: Staging copy of resources used as transfer source.
|
||||
@ -1396,7 +1400,7 @@ typedef enum VmaMemoryUsage
|
||||
VMA_MEMORY_USAGE_CPU_ONLY = 2,
|
||||
/**
|
||||
Memory that is both mappable on host (guarantees to be `HOST_VISIBLE`) and preferably fast to access by GPU.
|
||||
CPU reads may be uncached and very slow.
|
||||
CPU access is typically uncached. Writes may be write-combined.
|
||||
|
||||
Usage: Resources written frequently by host (dynamic), read by device. E.g. textures, vertex buffers, uniform buffers updated every frame or every draw call.
|
||||
*/
|
||||
|
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Reference in New Issue
Block a user