vkGetPhysicalDeviceQueueFamilyProperties(3)

Name

vkGetPhysicalDeviceQueueFamilyProperties - Reports properties of the queues of the specified physical device

C Specification

To query properties of queues available on a physical device, call:

This functionality is superseded by Vulkan Version 1.1. See Legacy Functionality for more information. 
// Provided by VK_VERSION_1_0
void vkGetPhysicalDeviceQueueFamilyProperties(
    VkPhysicalDevice                            physicalDevice,
    uint32_t*                                   pQueueFamilyPropertyCount,
    VkQueueFamilyProperties*                    pQueueFamilyProperties);

Parameters

  • physicalDevice is the handle to the physical device whose properties will be queried.

  • pQueueFamilyPropertyCount is a pointer to an integer related to the number of queue families available or queried, as described below.

  • pQueueFamilyProperties is either NULL or a pointer to an array of VkQueueFamilyProperties structures.

Description

If pQueueFamilyProperties is NULL, then the number of queue families available is returned in pQueueFamilyPropertyCount. Implementations must support at least one queue family. Otherwise, pQueueFamilyPropertyCount must point to a variable set by the application to the number of elements in the pQueueFamilyProperties array, and on return the variable is overwritten with the number of structures actually written to pQueueFamilyProperties. If pQueueFamilyPropertyCount is less than the number of queue families available, at most pQueueFamilyPropertyCount structures will be written.

Valid Usage (Implicit)

  • VUID-vkGetPhysicalDeviceQueueFamilyProperties-physicalDevice-parameter
    physicalDevice must be a valid VkPhysicalDevice handle

  • VUID-vkGetPhysicalDeviceQueueFamilyProperties-pQueueFamilyPropertyCount-parameter
    pQueueFamilyPropertyCount must be a valid pointer to a uint32_t value

  • VUID-vkGetPhysicalDeviceQueueFamilyProperties-pQueueFamilyProperties-parameter
    If the value referenced by pQueueFamilyPropertyCount is not 0, and pQueueFamilyProperties is not NULL, pQueueFamilyProperties must be a valid pointer to an array of pQueueFamilyPropertyCount VkQueueFamilyProperties structures

See Also

VK_VERSION_1_0, VkPhysicalDevice, VkQueueFamilyProperties

Document Notes

For more information, see the Vulkan Specification.

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.