VK_KHR_external_fence

Other Extension Metadata

Last Modified Date

2017-05-08

IP Status

No known IP claims.

Contributors

• Jesse Hall, Google
• James Jones, NVIDIA
• Jeff Juliano, NVIDIA
• Cass Everitt, Oculus
• Contributors to VK_KHR_external_semaphore

Description

An application using external memory may wish to synchronize access to that memory using fences. This extension enables an application to create fences from which non-Vulkan handles that reference the underlying synchronization primitive can be exported.

Promotion to Vulkan 1.1

All functionality in this extension is included in core Vulkan 1.1, with the KHR suffix omitted. The original type, enum, and command names are still available as aliases of the core functionality.

New Structures

• Extending VkFenceCreateInfo:
  • VkExportFenceCreateInfoKHR

New Enums

• VkFenceImportFlagBitsKHR

New Bitmasks

• VkFenceImportFlagsKHR

New Enum Constants

• VK_KHR_EXTERNAL_FENCE_EXTENSION_NAME
• VK_KHR_EXTERNAL_FENCE_SPEC_VERSION
• Extending VkFenceImportFlagBits:
  • VK_FENCE_IMPORT_TEMPORARY_BIT_KHR
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_EXPORT_FENCE_CREATE_INFO_KHR

Issues

This extension borrows concepts, semantics, and language from VK_KHR_external_semaphore. That extension’s issues apply equally to this extension.

Version History

• Revision 1, 2017-05-08 (Jesse Hall)
  • Initial revision