// Copyright (c) 2016-2017 Khronos Group. This work is licensed under a
// Creative Commons Attribution 4.0 International License; see
// http://creativecommons.org/licenses/by/4.0/

[[VK_KHR_external_fence_capabilities]]
== VK_KHR_external_fence_capabilities

*Name String*::
    +VK_KHR_external_fence_capabilities+
*Extension Type*::
    Instance extension
*Registered Extension Number*::
    113
*Status*::
    Draft
*Last Modified Date*::
    2017-05-08
*Revision*::
    1
*IP Status*::
    No known IP claims.
*Dependencies*::
  - This extension is written against version 1.0 of the Vulkan API.
  - Depends on +VK_KHR_get_physical_device_properties2+.
*Contributors*::
  - Jesse Hall, Google
  - James Jones, NVIDIA
  - Jeff Juliano, NVIDIA
  - Cass Everitt, Oculus
  - Contributors to
    <<VK_KHR_external_semaphore_capabilities,VK_KHR_external_semaphore_capablities>>

*Contact*::
    Jesse Hall (jessehall 'at' google.com)

An application may wish to reference device fences in multiple Vulkan
logical devices or instances, in multiple processes, and/or in multiple
APIs.
This extension provides a set of capability queries and handle definitions
that allow an application to determine what types of "`external`" fence
handles an implementation supports for a given set of use cases.

=== New Object Types

None.

=== New Enum Constants

  * ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_FENCE_INFO_KHR
  * ename:VK_STRUCTURE_TYPE_EXTERNAL_FENCE_PROPERTIES_KHR
  * ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES_KHR
  * ename:VK_LUID_SIZE_KHR

=== New Enums

  * elink:VkExternalFenceHandleTypeFlagBitsKHR
  * elink:VkExternalFenceFeatureFlagBitsKHR

=== New Structs

  * slink:VkPhysicalDeviceExternalFenceInfoKHR
  * slink:VkExternalFencePropertiesKHR
  * slink:VkPhysicalDeviceIDPropertiesKHR

=== New Functions

  * flink:vkGetPhysicalDeviceExternalFencePropertiesKHR

=== Issues

None.