mirror of
https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator
synced 2024-11-05 12:20:07 +00:00
218 lines
12 KiB
HTML
218 lines
12 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.13"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
|
<title>Vulkan Memory Allocator: Layer 1 Choosing Memory Type</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<link href="search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="search/searchdata.js"></script>
|
|
<script type="text/javascript" src="search/search.js"></script>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css" />
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td id="projectalign" style="padding-left: 0.5em;">
|
|
<div id="projectname">Vulkan Memory Allocator
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.13 -->
|
|
<script type="text/javascript">
|
|
var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
|
</script>
|
|
<script type="text/javascript" src="menudata.js"></script>
|
|
<script type="text/javascript" src="menu.js"></script>
|
|
<script type="text/javascript">
|
|
$(function() {
|
|
initMenu('',true,false,'search.php','Search');
|
|
$(document).ready(function() { init_search(); });
|
|
});
|
|
</script>
|
|
<div id="main-nav"></div>
|
|
</div><!-- top -->
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
</div>
|
|
|
|
<!-- iframe showing the search results (closed by default) -->
|
|
<div id="MSearchResultsWindow">
|
|
<iframe src="javascript:void(0)" frameborder="0"
|
|
name="MSearchResults" id="MSearchResults">
|
|
</iframe>
|
|
</div>
|
|
|
|
<div class="header">
|
|
<div class="summary">
|
|
<a href="#nested-classes">Classes</a> |
|
|
<a href="#typedef-members">Typedefs</a> |
|
|
<a href="#enum-members">Enumerations</a> |
|
|
<a href="#func-members">Functions</a> </div>
|
|
<div class="headertitle">
|
|
<div class="title">Layer 1 Choosing Memory Type</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
|
|
Classes</h2></td></tr>
|
|
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_vma_memory_requirements.html">VmaMemoryRequirements</a></td></tr>
|
|
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
|
|
</table><table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
|
|
Typedefs</h2></td></tr>
|
|
<tr class="memitem:gad63b2113c0bfdbeade1cb498f5a8580d"><td class="memItemLeft" align="right" valign="top">typedef enum <a class="el" href="group__layer1.html#gaa5846affa1e9da3800e3e78fae2305cc">VmaMemoryUsage</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__layer1.html#gad63b2113c0bfdbeade1cb498f5a8580d">VmaMemoryUsage</a></td></tr>
|
|
<tr class="separator:gad63b2113c0bfdbeade1cb498f5a8580d"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:gae9ee98bebd6e474aa0ef679e10f1d8ca"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="struct_vma_memory_requirements.html">VmaMemoryRequirements</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__layer1.html#gae9ee98bebd6e474aa0ef679e10f1d8ca">VmaMemoryRequirements</a></td></tr>
|
|
<tr class="separator:gae9ee98bebd6e474aa0ef679e10f1d8ca"><td class="memSeparator" colspan="2"> </td></tr>
|
|
</table><table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
|
|
Enumerations</h2></td></tr>
|
|
<tr class="memitem:gaa5846affa1e9da3800e3e78fae2305cc"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__layer1.html#gaa5846affa1e9da3800e3e78fae2305cc">VmaMemoryUsage</a> { <br />
|
|
  <a class="el" href="group__layer1.html#ggaa5846affa1e9da3800e3e78fae2305ccaf50d27e34e0925cf3a63db8c839121dd">VMA_MEMORY_USAGE_UNKNOWN</a> = 0,
|
|
<a class="el" href="group__layer1.html#ggaa5846affa1e9da3800e3e78fae2305ccac6b5dc1432d88647aa4cd456246eadf7">VMA_MEMORY_USAGE_GPU_ONLY</a> = 1,
|
|
<a class="el" href="group__layer1.html#ggaa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5">VMA_MEMORY_USAGE_CPU_ONLY</a> = 2,
|
|
<a class="el" href="group__layer1.html#ggaa5846affa1e9da3800e3e78fae2305cca9066b52c5a7079bb74a69aaf8b92ff67">VMA_MEMORY_USAGE_CPU_TO_GPU</a> = 3,
|
|
<br />
|
|
  <a class="el" href="group__layer1.html#ggaa5846affa1e9da3800e3e78fae2305cca7b586d2fdaf82a463b58f581ed72be27">VMA_MEMORY_USAGE_GPU_TO_CPU</a> = 4,
|
|
<a class="el" href="group__layer1.html#ggaa5846affa1e9da3800e3e78fae2305cca091e69437ef693e8d0d287f1c719ba6e">VMA_MEMORY_USAGE_MAX_ENUM</a> = 0x7FFFFFFF
|
|
<br />
|
|
}</td></tr>
|
|
<tr class="separator:gaa5846affa1e9da3800e3e78fae2305cc"><td class="memSeparator" colspan="2"> </td></tr>
|
|
</table><table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
|
|
Functions</h2></td></tr>
|
|
<tr class="memitem:gadf80663373e94bcef382f17534b8694e"><td class="memItemLeft" align="right" valign="top">VkResult </td><td class="memItemRight" valign="bottom"><a class="el" href="group__layer1.html#gadf80663373e94bcef382f17534b8694e">vmaFindMemoryTypeIndex</a> (VmaAllocator allocator, uint32_t memoryTypeBits, const <a class="el" href="struct_vma_memory_requirements.html">VmaMemoryRequirements</a> *pMemoryRequirements, uint32_t *pMemoryTypeIndex)</td></tr>
|
|
<tr class="separator:gadf80663373e94bcef382f17534b8694e"><td class="memSeparator" colspan="2"> </td></tr>
|
|
</table>
|
|
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
|
|
<h2 class="groupheader">Typedef Documentation</h2>
|
|
<a id="gae9ee98bebd6e474aa0ef679e10f1d8ca"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gae9ee98bebd6e474aa0ef679e10f1d8ca">◆ </a></span>VmaMemoryRequirements</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">typedef struct <a class="el" href="struct_vma_memory_requirements.html">VmaMemoryRequirements</a> <a class="el" href="struct_vma_memory_requirements.html">VmaMemoryRequirements</a></td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<a id="gad63b2113c0bfdbeade1cb498f5a8580d"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gad63b2113c0bfdbeade1cb498f5a8580d">◆ </a></span>VmaMemoryUsage</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">typedef enum <a class="el" href="group__layer1.html#gaa5846affa1e9da3800e3e78fae2305cc">VmaMemoryUsage</a> <a class="el" href="group__layer1.html#gaa5846affa1e9da3800e3e78fae2305cc">VmaMemoryUsage</a></td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
</div>
|
|
</div>
|
|
<h2 class="groupheader">Enumeration Type Documentation</h2>
|
|
<a id="gaa5846affa1e9da3800e3e78fae2305cc"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gaa5846affa1e9da3800e3e78fae2305cc">◆ </a></span>VmaMemoryUsage</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">enum <a class="el" href="group__layer1.html#gaa5846affa1e9da3800e3e78fae2305cc">VmaMemoryUsage</a></td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<table class="fieldtable">
|
|
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ggaa5846affa1e9da3800e3e78fae2305ccaf50d27e34e0925cf3a63db8c839121dd"></a>VMA_MEMORY_USAGE_UNKNOWN </td><td class="fielddoc"><p>No intended memory usage specified. </p>
|
|
</td></tr>
|
|
<tr><td class="fieldname"><a id="ggaa5846affa1e9da3800e3e78fae2305ccac6b5dc1432d88647aa4cd456246eadf7"></a>VMA_MEMORY_USAGE_GPU_ONLY </td><td class="fielddoc"><p>Memory will be used on device only, no need to be mapped on host. </p>
|
|
</td></tr>
|
|
<tr><td class="fieldname"><a id="ggaa5846affa1e9da3800e3e78fae2305cca40bdf4cddeffeb12f43d45ca1286e0a5"></a>VMA_MEMORY_USAGE_CPU_ONLY </td><td class="fielddoc"><p>Memory will be mapped on host. Could be used for transfer to device. </p>
|
|
</td></tr>
|
|
<tr><td class="fieldname"><a id="ggaa5846affa1e9da3800e3e78fae2305cca9066b52c5a7079bb74a69aaf8b92ff67"></a>VMA_MEMORY_USAGE_CPU_TO_GPU </td><td class="fielddoc"><p>Memory will be used for frequent (dynamic) updates from host and reads on device. </p>
|
|
</td></tr>
|
|
<tr><td class="fieldname"><a id="ggaa5846affa1e9da3800e3e78fae2305cca7b586d2fdaf82a463b58f581ed72be27"></a>VMA_MEMORY_USAGE_GPU_TO_CPU </td><td class="fielddoc"><p>Memory will be used for writing on device and readback on host. </p>
|
|
</td></tr>
|
|
<tr><td class="fieldname"><a id="ggaa5846affa1e9da3800e3e78fae2305cca091e69437ef693e8d0d287f1c719ba6e"></a>VMA_MEMORY_USAGE_MAX_ENUM </td><td class="fielddoc"></td></tr>
|
|
</table>
|
|
|
|
</div>
|
|
</div>
|
|
<h2 class="groupheader">Function Documentation</h2>
|
|
<a id="gadf80663373e94bcef382f17534b8694e"></a>
|
|
<h2 class="memtitle"><span class="permalink"><a href="#gadf80663373e94bcef382f17534b8694e">◆ </a></span>vmaFindMemoryTypeIndex()</h2>
|
|
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">VkResult vmaFindMemoryTypeIndex </td>
|
|
<td>(</td>
|
|
<td class="paramtype">VmaAllocator </td>
|
|
<td class="paramname"><em>allocator</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">uint32_t </td>
|
|
<td class="paramname"><em>memoryTypeBits</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">const <a class="el" href="struct_vma_memory_requirements.html">VmaMemoryRequirements</a> * </td>
|
|
<td class="paramname"><em>pMemoryRequirements</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">uint32_t * </td>
|
|
<td class="paramname"><em>pMemoryTypeIndex</em> </td>
|
|
</tr>
|
|
<tr>
|
|
<td></td>
|
|
<td>)</td>
|
|
<td></td><td></td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>This algorithm tries to find a memory type that:</p>
|
|
<ul>
|
|
<li>Is allowed by memoryTypeBits.</li>
|
|
<li>Contains all the flags from pMemoryRequirements->requiredFlags.</li>
|
|
<li>Matches intended usage.</li>
|
|
<li>Has as many flags from pMemoryRequirements->preferredFlags as possible.</li>
|
|
</ul>
|
|
<dl class="section return"><dt>Returns</dt><dd>Returns VK_ERROR_FEATURE_NOT_PRESENT if not found. Receiving such result from this function or any other allocating function probably means that your device doesn't support any memory type with requested features for the specific type of resource you want to use it for. Please check parameters of your resource, like image layout (OPTIMAL versus LINEAR) or mip level count. </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
</div><!-- contents -->
|
|
<!-- start footer part -->
|
|
<hr class="footer"/><address class="footer"><small>
|
|
Generated by  <a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
|
</a> 1.8.13
|
|
</small></address>
|
|
</body>
|
|
</html>
|