C Specification

To query the set of time domains for which a physical device supports timestamp calibration, call:

// Provided by VK_EXT_calibrated_timestamps
VkResult vkGetPhysicalDeviceCalibrateableTimeDomainsEXT(
    VkPhysicalDevice                            physicalDevice,
    uint32_t*                                   pTimeDomainCount,
    VkTimeDomainEXT*                            pTimeDomains);


  • physicalDevice is the physical device from which to query the set of calibrateable time domains.

  • pTimeDomainCount is a pointer to an integer related to the number of calibrateable time domains available or queried, as described below.

  • pTimeDomains is either NULL or a pointer to an array of VkTimeDomainEXT values, indicating the supported calibrateable time domains.


If pTimeDomains is NULL, then the number of calibrateable time domains supported for the given physicalDevice is returned in pTimeDomainCount. Otherwise, pTimeDomainCount must point to a variable set by the user to the number of elements in the pTimeDomains array, and on return the variable is overwritten with the number of values actually written to pTimeDomains. If the value of pTimeDomainCount is less than the number of calibrateable time domains supported, at most pTimeDomainCount values will be written to pTimeDomains, and VK_INCOMPLETE will be returned instead of VK_SUCCESS, to indicate that not all the available time domains were returned.

Valid Usage (Implicit)
  • VUID-vkGetPhysicalDeviceCalibrateableTimeDomainsEXT-physicalDevice-parameter
    physicalDevice must be a valid VkPhysicalDevice handle

  • VUID-vkGetPhysicalDeviceCalibrateableTimeDomainsEXT-pTimeDomainCount-parameter
    pTimeDomainCount must be a valid pointer to a uint32_t value

  • VUID-vkGetPhysicalDeviceCalibrateableTimeDomainsEXT-pTimeDomains-parameter
    If the value referenced by pTimeDomainCount is not 0, and pTimeDomains is not NULL, pTimeDomains must be a valid pointer to an array of pTimeDomainCount VkTimeDomainEXT values

Return Codes
On success, this command returns


On failure, this command returns


See Also

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.

Copyright 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0