Vulkan-Docs/doc/specs/vulkan/appendices/VK_KHR_android_surface.txt

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// Copyright (c) 2014-2017 Khronos Group. This work is licensed under a
// Creative Commons Attribution 4.0 International License; see
// http://creativecommons.org/licenses/by/4.0/
include::meta/VK_KHR_android_surface.txt[]
*Last Modified Date*::
2016-01-14
*IP Status*::
No known IP claims.
*Contributors*::
- Patrick Doane, Blizzard
- Jason Ekstrand, Intel
- Ian Elliott, LunarG
- Courtney Goeltzenleuchter, LunarG
- Jesse Hall, Google
- James Jones, NVIDIA
- Antoine Labour, Google
- Jon Leech, Khronos
- David Mao, AMD
- Norbert Nopper, Freescale
- Alon Or-bach, Samsung
- Daniel Rakos, AMD
- Graham Sellers, AMD
- Ray Smith, ARM
- Jeff Vigil, Qualcomm
- Chia-I Wu, LunarG
The +VK_KHR_android_surface+ extension is an instance extension.
It provides a mechanism to create a slink:VkSurfaceKHR object (defined by
the +VK_KHR_surface+ extension) that refers to an code:ANativeWindow,
Android's native surface type.
The code:ANativeWindow represents the producer endpoint of any buffer queue,
regardless of consumer endpoint.
Common consumer endpoints for code:ANativeWindows are the system window
compositor, video encoders, and application-specific compositors importing
the images through a code:SurfaceTexture.
=== New Object Types
None
=== New Enum Constants
* Extending elink:VkStructureType:
** ename:VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR
=== New Enums
None
=== New Structures
* slink:VkAndroidSurfaceCreateInfoKHR
=== New Functions
* flink:vkCreateAndroidSurfaceKHR
=== Issues
1) Does Android need a way to query for compatibility between a particular
physical device (and queue family?) and a specific Android display?
*RESOLVED*: No.
Currently on Android, any GPU is expected to be able to present to the
system compositor, and all queue families must support the necessary image
layout transitions and synchronization operations.
=== Version History
* Revision 1, 2015-09-23 (Jesse Hall)
- Initial draft.
* Revision 2, 2015-10-26 (Ian Elliott)
- Renamed from VK_EXT_KHR_android_surface to VK_KHR_android_surface.
* Revision 3, 2015-11-03 (Daniel Rakos)
- Added allocation callbacks to surface creation function.
* Revision 4, 2015-11-10 (Jesse Hall)
- Removed VK_ERROR_INVALID_ANDROID_WINDOW_KHR.
* Revision 5, 2015-11-28 (Daniel Rakos)
- Updated the surface create function to take a pCreateInfo structure.
* Revision 6, 2016-01-14 (James Jones)
- Moved VK_ERROR_NATIVE_WINDOW_IN_USE_KHR from the VK_KHR_android_surface
to the VK_KHR_surface extension.