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b7b1c3a65d
* Bump API patch number and header version number to 67 for this update.
* Update copyright dates to 2018
Github Issues:
* Fix texture lookup functions in `GL_KHR_vulkan_glsl` specification
(public pull request 363).
* Clarify the state waited semaphores are left in when a call to
flink:vkQueuePresentKHR fails (public issue 572).
* Cleanup descriptions of slink:VkObjectTablePushConstantEntryNVX and
slink:VkObjectTableDescriptorSetEntryNVX (public issue 583)
* Remove redundant flink:vkCmdSetDiscardRectangleEXT valid usage
statements (public pull 586).
* Make dynamic state array length valid usage statements implicit for
flink:vkCmdSetViewportWScalingNV, flink:vkCmdSetDiscardRectangleEXT, and
flink:vkCmdSetViewport (public pull 589).
* Clarify meaning of window extent (0,0) in slink:VkSwapchainKHR for the
Windows and X11 platforms, in their respective extensions (public issue
590).
* Allow flink:vkGetPastPresentationTimingGOOGLE to return
ename:VK_INCOMPLETE (public issue 604).
* Add synchronization valid usage statements to flink:vkAcquireNextImage
(public pull 611).
* Fix some broken external links and internal xrefs (public pull 613).
* Clean up slink:VkViewport valid usage statements in the presence or
absence of relevant extensions (public pull 623).
* Remove
ename:VK_IMAGE_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_OPTIMAL_KHR
token from VK_KHR_maintenance2 from the non-extension VU path for
slink:VkGraphicsPipelineCreateInfo (public issue 628).
* Miscellaneous minor markup fixes - extension name strings (public pull
631), Notes (pull 633), queue names emitted by generator scripts (pull
634), block formatting in slink:VkDescriptorUpdateTemplateEntryKHR (pull
635), ename:VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG (pull
641), quotes and apostrophes (pull 643),
* Miscellaneous minor grammar fixes (public pull 644).
* Fix markup macros so usage like ptext:*Src* works (public pull 647).
Internal Issues:
* Clarify in the `VK_KHR_surface` and `VK_KHR_swapchain` extensions that
parameter combinations which aren't supported for normal images are also
unsupported for presentable images, even if the parameter values are
individually supported as reported by the surface capability queries
(internal issue 1029).
* Fixed XML typo in the valid value field of the pname:sType member of
slink:VkPhysicalDeviceExternalMemoryHostPropertiesEXT (internal issue
1100).
Other Issues:
* Add memory semantics validity rules to the <<spirvenv-module-validation,
Validation Rules within a Module>> section of the SPIR-V environment
appendix, and specify that sequentiality consistency is not supported.
This forbids certain cases like "`Load+Release`" that we don't expect to
ever be meaningful.
* Document mapping of OpenGL Shading Language barriers to SPIR-V scope and
semantics in the `GL_KHR_vulkan_glsl` specification.
New Extensions:
* `VK_EXT_conservative_rasterization`
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108 lines
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// Copyright (c) 2014-2018 Khronos Group. This work is licensed under a
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// Creative Commons Attribution 4.0 International License; see
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// http://creativecommons.org/licenses/by/4.0/
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include::meta/VK_KHR_wayland_surface.txt[]
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*Last Modified Date*::
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2015-11-28
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*IP Status*::
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No known IP claims.
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*Contributors*::
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- Patrick Doane, Blizzard
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- Jason Ekstrand, Intel
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- Ian Elliott, LunarG
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- Courtney Goeltzenleuchter, LunarG
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- Jesse Hall, Google
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- James Jones, NVIDIA
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- Antoine Labour, Google
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- Jon Leech, Khronos
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- David Mao, AMD
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- Norbert Nopper, Freescale
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- Alon Or-bach, Samsung
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- Daniel Rakos, AMD
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- Graham Sellers, AMD
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- Ray Smith, ARM
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- Jeff Vigil, Qualcomm
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- Chia-I Wu, LunarG
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The `VK_KHR_wayland_surface` extension is an instance extension.
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It provides a mechanism to create a slink:VkSurfaceKHR object (defined by
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the `<<VK_KHR_surface>>` extension) that refers to a Wayland
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code:wl_surface, as well as a query to determine support for rendering to a
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Wayland compositor.
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=== New Object Types
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None
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=== New Enum Constants
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* Extending elink:VkStructureType:
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** ename:VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR
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=== New Enums
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None
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=== New Structures
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* slink:VkWaylandSurfaceCreateInfoKHR
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=== New Functions
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* flink:vkCreateWaylandSurfaceKHR
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* flink:vkGetPhysicalDeviceWaylandPresentationSupportKHR
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=== Issues
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1) Does Wayland need a way to query for compatibility between a particular
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physical device and a specific Wayland display? This would be a more general
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query than flink:vkGetPhysicalDeviceSurfaceSupportKHR: if the
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Wayland-specific query returned ename:VK_TRUE for a (slink:VkPhysicalDevice,
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`struct wl_display*`) pair, then the physical device could be assumed to
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support presentation to any slink:VkSurfaceKHR for surfaces on the display.
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*RESOLVED*: Yes.
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flink:vkGetPhysicalDeviceWaylandPresentationSupportKHR was added to address
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this issue.
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2) Should we require surfaces created with flink:vkCreateWaylandSurfaceKHR
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to support the ename:VK_PRESENT_MODE_MAILBOX_KHR present mode?
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*RESOLVED*: Yes.
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Wayland is an inherently mailbox window system and mailbox support is
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required for some Wayland compositor interactions to work as expected.
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While handling these interactions may be possible with
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ename:VK_PRESENT_MODE_FIFO_KHR, it is much more difficult to do without
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deadlock and requiring all Wayland applications to be able to support
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implementations which only support ename:VK_PRESENT_MODE_FIFO_KHR would be
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an onerous restriction on application developers.
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=== Version History
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* Revision 1, 2015-09-23 (Jesse Hall)
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- Initial draft, based on the previous contents of VK_EXT_KHR_swapchain
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(later renamed VK_EXT_KHR_surface).
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* Revision 2, 2015-10-02 (James Jones)
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- Added vkGetPhysicalDeviceWaylandPresentationSupportKHR() to resolve
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issue #1.
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- Adjusted wording of issue #1 to match the agreed-upon solution.
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- Renamed "window" parameters to "surface" to match Wayland conventions.
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* Revision 3, 2015-10-26 (Ian Elliott)
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- Renamed from VK_EXT_KHR_wayland_surface to VK_KHR_wayland_surface.
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* Revision 4, 2015-11-03 (Daniel Rakos)
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- Added allocation callbacks to vkCreateWaylandSurfaceKHR.
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* Revision 5, 2015-11-28 (Daniel Rakos)
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- Updated the surface create function to take a pCreateInfo structure.
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* Revision 6, 2017-02-08 (Jason Ekstrand)
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- Added the requirement that implementations support
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ename:VK_PRESENT_MODE_MAILBOX_KHR.
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- Added wording about interactions between flink:vkQueuePresentKHR and
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the Wayland requests sent to the compositor.
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