// Copyright 2016-2021 The Khronos Group Inc.
//
// SPDX-License-Identifier: CC-BY-4.0

include::{generated}/meta/{refprefix}VK_EXT_display_surface_counter.txt[]

=== Other Extension Metadata

*Last Modified Date*::
    2016-12-13
*IP Status*::
    No known IP claims.
*Contributors*::
  - Pierre Boudier, NVIDIA
  - James Jones, NVIDIA
  - Damien Leone, NVIDIA
  - Pierre-Loup Griffais, Valve
  - Daniel Vetter, Intel

=== Description

This extension defines a vertical blanking period counter associated with
display surfaces.
It provides a mechanism to query support for such a counter from a
slink:VkSurfaceKHR object.

include::{generated}/interfaces/VK_EXT_display_surface_counter.txt[]

=== Version History

 * Revision 1, 2016-12-13 (James Jones)
   - Initial draft