VK_FUCHSIA_external_memory

Other Extension Metadata

Last Modified Date

2021-03-01

IP Status

No known IP claims.

Contributors

• Craig Stout, Google
• John Bauman, Google
• John Rosasco, Google

Description

Vulkan apps may wish to export or import device memory handles to or from other logical devices, instances or APIs.

This memory sharing can eliminate copies of memory buffers when different subsystems need to interoperate on them. Sharing memory buffers may also facilitate a better distribution of processing workload for more complex memory manipulation pipelines.

New Commands

• vkGetMemoryZirconHandleFUCHSIA
• vkGetMemoryZirconHandlePropertiesFUCHSIA

New Structures

• VkMemoryGetZirconHandleInfoFUCHSIA
• VkMemoryZirconHandlePropertiesFUCHSIA
• Extending VkMemoryAllocateInfo:
  • VkImportMemoryZirconHandleInfoFUCHSIA

New Enum Constants

• VK_FUCHSIA_EXTERNAL_MEMORY_EXTENSION_NAME
• VK_FUCHSIA_EXTERNAL_MEMORY_SPEC_VERSION
• Extending VkExternalMemoryHandleTypeFlagBits:
  • VK_EXTERNAL_MEMORY_HANDLE_TYPE_ZIRCON_VMO_BIT_FUCHSIA
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_IMPORT_MEMORY_ZIRCON_HANDLE_INFO_FUCHSIA
  • VK_STRUCTURE_TYPE_MEMORY_GET_ZIRCON_HANDLE_INFO_FUCHSIA
  • VK_STRUCTURE_TYPE_MEMORY_ZIRCON_HANDLE_PROPERTIES_FUCHSIA

Issues

See VK_KHR_external_memory issues list for further information.

Version History

• Revision 1, 2021-03-01 (John Rosasco)
  • Initial draft