1// Copyright 2018-2024 The Khronos Group Inc. 2// 3// SPDX-License-Identifier: CC-BY-4.0 4 5include::{generated}/meta/{refprefix}VK_EXT_calibrated_timestamps.adoc[] 6 7=== Other Extension Metadata 8 9*Last Modified Date*:: 10 2018-10-04 11*IP Status*:: 12 No known IP claims. 13*Contributors*:: 14 - Matthaeus G. Chajdas, AMD 15 - Alan Harrison, AMD 16 - Derrick Owens, AMD 17 - Daniel Rakos, AMD 18 - Faith Ekstrand, Intel 19 - Keith Packard, Valve 20 21=== Description 22 23This extension provides an interface to query calibrated timestamps obtained 24quasi simultaneously from two time domains. 25 26=== Promotion to `VK_KHR_calibrated_timestamps` 27 28All functionality in this extension is included in 29`apiext:VK_KHR_calibrated_timestamps`, with the suffix changed to KHR. 30The original enum names are still available as aliases of the KHR 31functionality. 32 33include::{generated}/interfaces/VK_EXT_calibrated_timestamps.adoc[] 34 35=== Version History 36 37 * Revision 2, 2021-03-16 (Lionel Landwerlin) 38 ** Specify requirement on device timestamps 39 * Revision 1, 2018-10-04 (Daniel Rakos) 40 ** Internal revisions. 41