VK_KHR_external_fence_fd

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_fd

Description

An application using external memory may wish to synchronize access to that memory using fences. This extension enables an application to export fence payload to and import fence payload from POSIX file descriptors.

New Commands

• vkGetFenceFdKHR
• vkImportFenceFdKHR

New Structures

• VkFenceGetFdInfoKHR
• VkImportFenceFdInfoKHR

New Enum Constants

• VK_KHR_EXTERNAL_FENCE_FD_EXTENSION_NAME
• VK_KHR_EXTERNAL_FENCE_FD_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_FENCE_GET_FD_INFO_KHR
  • VK_STRUCTURE_TYPE_IMPORT_FENCE_FD_INFO_KHR

Issues

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

Version History

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