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22a5a1459f
* Update release number to 124.
Github Issues:
* Fix Makefile SPECREMARK macro to work when not building in a git tree
(public issue 992).
* Ignore pname:aspectMask for unused attachments in
slink:VkSubpassDescription2KHR valid usage statements (public pull
request 1028).
* Minor markup / spelling fixes (public pull requests 1035, 1045).
Internal Issues:
* Fix markup in Valid Usage statement for slink:VkCreateFramebuffer
(internal issue 1823).
* Add a new <<synchronization-signal-operation-order, _signal operation
order_>> section to the synchronization chapter which describes in
detail the ordering guarantees provided by the API between fence and
semaphore signal operations (internal merge request 3368).
* Move generated `appendix/meta/` files into the Makefile GENERATED
directory (internal merge request 3381).
New Extensions
* `<<VK_KHR_shader_clock>>`
* `<<VK_KHR_timeline_semaphore>>`
44 lines
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44 lines
1.5 KiB
Plaintext
include::{generated}/meta/VK_EXT_queue_family_foreign.txt[]
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*Last Modified Date*::
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2017-11-01
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*IP Status*::
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No known IP claims.
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*Contributors*::
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- Chad Versace, Google
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- James Jones, NVIDIA
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- Jason Ekstrand, Intel
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- Jesse Hall, Google
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- Daniel Rakos, AMD
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- Ray Smith, ARM
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This extension defines a special queue family,
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ename:VK_QUEUE_FAMILY_FOREIGN_EXT, which can be used to transfer ownership
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of resources backed by external memory to foreign, external queues.
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This is similar to ename:VK_QUEUE_FAMILY_EXTERNAL_KHR, defined in
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`<<VK_KHR_external_memory>>`.
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The key differences between the two are:
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* The queues represented by ename:VK_QUEUE_FAMILY_EXTERNAL_KHR must share
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the same physical device and the same driver version as the current
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slink:VkInstance.
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ename:VK_QUEUE_FAMILY_FOREIGN_EXT has no such restrictions.
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It can represent devices and drivers from other vendors, and can even
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represent non-Vulkan-capable devices.
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* All resources backed by external memory support
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ename:VK_QUEUE_FAMILY_EXTERNAL_KHR.
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Support for ename:VK_QUEUE_FAMILY_FOREIGN_EXT is more restrictive.
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* Applications should expect transitions to/from
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ename:VK_QUEUE_FAMILY_FOREIGN_EXT to be more expensive than transitions
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to/from ename:VK_QUEUE_FAMILY_EXTERNAL_KHR.
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=== New Enum Constants
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* Special constants:
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** ename:VK_QUEUE_FAMILY_FOREIGN_EXT
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=== Version History
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* Revision 1, 2017-11-01 (Chad Versace)
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- Squashed internal revisions
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