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<td >Qt 5.12</td><td ><a href="qtgui-index.html">Qt GUI</a></td><td ><a href="qtgui-module.html">C++ Classes</a></td><td >QVulkanFunctions</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtgui-index.html">Qt 5.12.6 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QVulkanFunctions Class</h1>
<!-- $$$QVulkanFunctions-brief -->
<p>The <a href="qvulkanfunctions.html">QVulkanFunctions</a> class provides cross-platform access to the instance level core Vulkan 1.0 API. <a href="#details">More...</a></p>
<!-- @@@QVulkanFunctions -->
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QVulkanFunctions></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += gui</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 5.10</td></tr></table></div><ul>
<li><a href="qvulkanfunctions-members.html">List of all members, including inherited members</a></li>
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<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#dtor.QVulkanFunctions">~QVulkanFunctions</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkCreateDevice">vkCreateDevice</a></b>(<i>int</i>, <i>const int *</i>, <i>const int *</i>, <i>int *</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkEnumerateDeviceExtensionProperties">vkEnumerateDeviceExtensionProperties</a></b>(<i>int</i>, <i>const char *</i>, <i>uint32_t *</i>, <i>int *</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkEnumerateDeviceLayerProperties">vkEnumerateDeviceLayerProperties</a></b>(<i>int</i>, <i>uint32_t *</i>, <i>int *</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkEnumerateInstanceExtensionProperties">vkEnumerateInstanceExtensionProperties</a></b>(<i>const char *</i>, <i>uint32_t *</i>, <i>int *</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkEnumerateInstanceLayerProperties">vkEnumerateInstanceLayerProperties</a></b>(<i>uint32_t *</i>, <i>int *</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkEnumeratePhysicalDevices">vkEnumeratePhysicalDevices</a></b>(<i>int</i>, <i>uint32_t *</i>, <i>int *</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkGetDeviceProcAddr">vkGetDeviceProcAddr</a></b>(<i>int</i>, <i>const char *</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkGetPhysicalDeviceFeatures">vkGetPhysicalDeviceFeatures</a></b>(int <i>physicalDevice</i>, int *<i>pFeatures</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkGetPhysicalDeviceFormatProperties">vkGetPhysicalDeviceFormatProperties</a></b>(int <i>physicalDevice</i>, int <i>format</i>, int *<i>pFormatProperties</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkGetPhysicalDeviceImageFormatProperties">vkGetPhysicalDeviceImageFormatProperties</a></b>(<i>int</i>, <i>int</i>, <i>int</i>, <i>int</i>, <i>int</i>, <i>int</i>, <i>int *</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkGetPhysicalDeviceMemoryProperties">vkGetPhysicalDeviceMemoryProperties</a></b>(int <i>physicalDevice</i>, int *<i>pMemoryProperties</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkGetPhysicalDeviceProperties">vkGetPhysicalDeviceProperties</a></b>(int <i>physicalDevice</i>, int *<i>pProperties</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkGetPhysicalDeviceQueueFamilyProperties">vkGetPhysicalDeviceQueueFamilyProperties</a></b>(int <i>physicalDevice</i>, uint32_t *<i>pQueueFamilyPropertyCount</i>, int *<i>pQueueFamilyProperties</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qvulkanfunctions.html#vkGetPhysicalDeviceSparseImageFormatProperties">vkGetPhysicalDeviceSparseImageFormatProperties</a></b>(int <i>physicalDevice</i>, int <i>format</i>, int <i>type</i>, int <i>samples</i>, int <i>usage</i>, int <i>tiling</i>, uint32_t *<i>pPropertyCount</i>, int *<i>pProperties</i>)</td></tr>
</table></div>
<a name="details"></a>
<!-- $$$QVulkanFunctions-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qvulkanfunctions.html">QVulkanFunctions</a> class provides cross-platform access to the instance level core Vulkan 1.0 API.</p>
<p>Qt and Qt applications do not link to any Vulkan libraries by default. Instead, all functions are resolved dynamically at run time. Each <a href="qvulkaninstance.html">QVulkanInstance</a> provides a <a href="qvulkanfunctions.html">QVulkanFunctions</a> object retrievable via <a href="qvulkaninstance.html#functions">QVulkanInstance::functions</a>(). This does not contain device level functions in order to avoid the potential overhead of an internal dispatching. Instead, functions that rely on a device, or a dispatchable child object of a device, are exposed via <a href="qvulkandevicefunctions.html">QVulkanDeviceFunctions</a> and <a href="qvulkaninstance.html#deviceFunctions">QVulkanInstance::deviceFunctions</a>(). <a href="qvulkanfunctions.html">QVulkanFunctions</a> and <a href="qvulkandevicefunctions.html">QVulkanDeviceFunctions</a> together provides access to the full core Vulkan API, excluding any extensions.</p>
<p><b>Note: </b><a href="qvulkanfunctions.html">QVulkanFunctions</a> instances cannot be constructed directly.</p><p>The typical usage is the following:</p>
<pre class="cpp">
<span class="type">void</span> Window<span class="operator">::</span>render()
{
<span class="type"><a href="qvulkaninstance.html">QVulkanInstance</a></span> <span class="operator">*</span>inst <span class="operator">=</span> vulkanInstance();
<span class="type">QVulkanFunctions</span> <span class="operator">*</span>f <span class="operator">=</span> inst<span class="operator">-</span><span class="operator">></span>functions();
<span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>
VkResult err <span class="operator">=</span> f<span class="operator">-</span><span class="operator">></span>vkAllocateCommandBuffers(device<span class="operator">,</span> <span class="operator">&</span>cmdBufInfo<span class="operator">,</span> <span class="operator">&</span>cmdBuf);
<span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>
}
</pre>
<p><b>Note: </b>Windowing system interface (WSI) specifics and extensions are excluded. This class only covers core Vulkan commands, with the exception of instance creation, destruction, and function resolving, since such functionality is covered by <a href="qvulkaninstance.html">QVulkanInstance</a> itself.</p><p>To access additional functions, applications can use <a href="qvulkaninstance.html#getInstanceProcAddr">QVulkanInstance::getInstanceProcAddr</a>() and <a href="qvulkanfunctions.html#vkGetDeviceProcAddr">vkGetDeviceProcAddr</a>(). Applications can also decide to link to a Vulkan library directly, as platforms with an appropriate loader will typically export function symbols for the core commands. See <a href="https://www.khronos.org/registry/vulkan/specs/1.0/man/html/vkGetInstanceProcAddr.html">the man page for vkGetInstanceProcAddr</a> for more information.</p>
</div>
<p><b>See also </b><a href="qvulkaninstance.html">QVulkanInstance</a>, <a href="qvulkandevicefunctions.html">QVulkanDeviceFunctions</a>, <a href="qwindow.html#setVulkanInstance">QWindow::setVulkanInstance</a>(), and <a href="qwindow.html#setSurfaceType">QWindow::setSurfaceType</a>().</p>
<!-- @@@QVulkanFunctions -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$~QVulkanFunctions[overload1]$$$~QVulkanFunctions -->
<h3 class="fn" id="dtor.QVulkanFunctions"><a name="dtor.QVulkanFunctions"></a>QVulkanFunctions::<span class="name">~QVulkanFunctions</span>()</h3>
<p>Destroys the instance of QVulkanFunctions.</p><!-- @@@~QVulkanFunctions -->
<!-- $$$vkCreateDevice[overload1]$$$vkCreateDeviceintconstint*constint*int* -->
<h3 class="fn" id="vkCreateDevice"><a name="vkCreateDevice"></a><span class="type">int</span> QVulkanFunctions::<span class="name">vkCreateDevice</span>(<i>int</i>, <i>const int *</i>, <i>const int *</i>, <i>int *</i>)</h3>
<!-- @@@vkCreateDevice -->
<!-- $$$vkEnumerateDeviceExtensionProperties[overload1]$$$vkEnumerateDeviceExtensionPropertiesintconstchar*uint32_t*int* -->
<h3 class="fn" id="vkEnumerateDeviceExtensionProperties"><a name="vkEnumerateDeviceExtensionProperties"></a><span class="type">int</span> QVulkanFunctions::<span class="name">vkEnumerateDeviceExtensionProperties</span>(<i>int</i>, <i>const char *</i>, <i>uint32_t *</i>, <i>int *</i>)</h3>
<!-- @@@vkEnumerateDeviceExtensionProperties -->
<!-- $$$vkEnumerateDeviceLayerProperties[overload1]$$$vkEnumerateDeviceLayerPropertiesintuint32_t*int* -->
<h3 class="fn" id="vkEnumerateDeviceLayerProperties"><a name="vkEnumerateDeviceLayerProperties"></a><span class="type">int</span> QVulkanFunctions::<span class="name">vkEnumerateDeviceLayerProperties</span>(<i>int</i>, <i>uint32_t *</i>, <i>int *</i>)</h3>
<!-- @@@vkEnumerateDeviceLayerProperties -->
<!-- $$$vkEnumerateInstanceExtensionProperties[overload1]$$$vkEnumerateInstanceExtensionPropertiesconstchar*uint32_t*int* -->
<h3 class="fn" id="vkEnumerateInstanceExtensionProperties"><a name="vkEnumerateInstanceExtensionProperties"></a><span class="type">int</span> QVulkanFunctions::<span class="name">vkEnumerateInstanceExtensionProperties</span>(<i>const char *</i>, <i>uint32_t *</i>, <i>int *</i>)</h3>
<!-- @@@vkEnumerateInstanceExtensionProperties -->
<!-- $$$vkEnumerateInstanceLayerProperties[overload1]$$$vkEnumerateInstanceLayerPropertiesuint32_t*int* -->
<h3 class="fn" id="vkEnumerateInstanceLayerProperties"><a name="vkEnumerateInstanceLayerProperties"></a><span class="type">int</span> QVulkanFunctions::<span class="name">vkEnumerateInstanceLayerProperties</span>(<i>uint32_t *</i>, <i>int *</i>)</h3>
<!-- @@@vkEnumerateInstanceLayerProperties -->
<!-- $$$vkEnumeratePhysicalDevices[overload1]$$$vkEnumeratePhysicalDevicesintuint32_t*int* -->
<h3 class="fn" id="vkEnumeratePhysicalDevices"><a name="vkEnumeratePhysicalDevices"></a><span class="type">int</span> QVulkanFunctions::<span class="name">vkEnumeratePhysicalDevices</span>(<i>int</i>, <i>uint32_t *</i>, <i>int *</i>)</h3>
<!-- @@@vkEnumeratePhysicalDevices -->
<!-- $$$vkGetDeviceProcAddr[overload1]$$$vkGetDeviceProcAddrintconstchar* -->
<h3 class="fn" id="vkGetDeviceProcAddr"><a name="vkGetDeviceProcAddr"></a><span class="type">int</span> QVulkanFunctions::<span class="name">vkGetDeviceProcAddr</span>(<i>int</i>, <i>const char *</i>)</h3>
<!-- @@@vkGetDeviceProcAddr -->
<!-- $$$vkGetPhysicalDeviceFeatures[overload1]$$$vkGetPhysicalDeviceFeaturesintint* -->
<h3 class="fn" id="vkGetPhysicalDeviceFeatures"><a name="vkGetPhysicalDeviceFeatures"></a><span class="type">void</span> QVulkanFunctions::<span class="name">vkGetPhysicalDeviceFeatures</span>(<span class="type">int</span> <i>physicalDevice</i>, <span class="type">int</span> *<i>pFeatures</i>)</h3>
<!-- @@@vkGetPhysicalDeviceFeatures -->
<!-- $$$vkGetPhysicalDeviceFormatProperties[overload1]$$$vkGetPhysicalDeviceFormatPropertiesintintint* -->
<h3 class="fn" id="vkGetPhysicalDeviceFormatProperties"><a name="vkGetPhysicalDeviceFormatProperties"></a><span class="type">void</span> QVulkanFunctions::<span class="name">vkGetPhysicalDeviceFormatProperties</span>(<span class="type">int</span> <i>physicalDevice</i>, <span class="type">int</span> <i>format</i>, <span class="type">int</span> *<i>pFormatProperties</i>)</h3>
<!-- @@@vkGetPhysicalDeviceFormatProperties -->
<!-- $$$vkGetPhysicalDeviceImageFormatProperties[overload1]$$$vkGetPhysicalDeviceImageFormatPropertiesintintintintintintint* -->
<h3 class="fn" id="vkGetPhysicalDeviceImageFormatProperties"><a name="vkGetPhysicalDeviceImageFormatProperties"></a><span class="type">int</span> QVulkanFunctions::<span class="name">vkGetPhysicalDeviceImageFormatProperties</span>(<i>int</i>, <i>int</i>, <i>int</i>, <i>int</i>, <i>int</i>, <i>int</i>, <i>int *</i>)</h3>
<!-- @@@vkGetPhysicalDeviceImageFormatProperties -->
<!-- $$$vkGetPhysicalDeviceMemoryProperties[overload1]$$$vkGetPhysicalDeviceMemoryPropertiesintint* -->
<h3 class="fn" id="vkGetPhysicalDeviceMemoryProperties"><a name="vkGetPhysicalDeviceMemoryProperties"></a><span class="type">void</span> QVulkanFunctions::<span class="name">vkGetPhysicalDeviceMemoryProperties</span>(<span class="type">int</span> <i>physicalDevice</i>, <span class="type">int</span> *<i>pMemoryProperties</i>)</h3>
<!-- @@@vkGetPhysicalDeviceMemoryProperties -->
<!-- $$$vkGetPhysicalDeviceProperties[overload1]$$$vkGetPhysicalDevicePropertiesintint* -->
<h3 class="fn" id="vkGetPhysicalDeviceProperties"><a name="vkGetPhysicalDeviceProperties"></a><span class="type">void</span> QVulkanFunctions::<span class="name">vkGetPhysicalDeviceProperties</span>(<span class="type">int</span> <i>physicalDevice</i>, <span class="type">int</span> *<i>pProperties</i>)</h3>
<!-- @@@vkGetPhysicalDeviceProperties -->
<!-- $$$vkGetPhysicalDeviceQueueFamilyProperties[overload1]$$$vkGetPhysicalDeviceQueueFamilyPropertiesintuint32_t*int* -->
<h3 class="fn" id="vkGetPhysicalDeviceQueueFamilyProperties"><a name="vkGetPhysicalDeviceQueueFamilyProperties"></a><span class="type">void</span> QVulkanFunctions::<span class="name">vkGetPhysicalDeviceQueueFamilyProperties</span>(<span class="type">int</span> <i>physicalDevice</i>, <span class="type">uint32_t</span> *<i>pQueueFamilyPropertyCount</i>, <span class="type">int</span> *<i>pQueueFamilyProperties</i>)</h3>
<!-- @@@vkGetPhysicalDeviceQueueFamilyProperties -->
<!-- $$$vkGetPhysicalDeviceSparseImageFormatProperties[overload1]$$$vkGetPhysicalDeviceSparseImageFormatPropertiesintintintintintintuint32_t*int* -->
<h3 class="fn" id="vkGetPhysicalDeviceSparseImageFormatProperties"><a name="vkGetPhysicalDeviceSparseImageFormatProperties"></a><span class="type">void</span> QVulkanFunctions::<span class="name">vkGetPhysicalDeviceSparseImageFormatProperties</span>(<span class="type">int</span> <i>physicalDevice</i>, <span class="type">int</span> <i>format</i>, <span class="type">int</span> <i>type</i>, <span class="type">int</span> <i>samples</i>, <span class="type">int</span> <i>usage</i>, <span class="type">int</span> <i>tiling</i>, <span class="type">uint32_t</span> *<i>pPropertyCount</i>, <span class="type">int</span> *<i>pProperties</i>)</h3>
<!-- @@@vkGetPhysicalDeviceSparseImageFormatProperties -->
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