Vulkan-Docs/appendices/VK_KHR_get_display_properti...

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// Copyright (c) 2017-2019 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_get_display_properties2.txt[]
*Last Modified Date*::
2017-02-21
*IP Status*::
No known IP claims.
*Contributors*::
- Ian Elliott, Google
- James Jones, NVIDIA
This extension provides new entry points to query device display properties
and capabilities in a way that can be easily extended by other extensions,
without introducing any further entry points.
This extension can be considered the <<VK_KHR_display,VK_KHR_display>>
equivalent of the <<VK_KHR_get_physical_device_properties2,
VK_KHR_get_physical_device_properties2>> extension.
=== New Object Types
None.
=== New Enum Constants
* Extending elink:VkStructureType:
** ename:VK_STRUCTURE_TYPE_DISPLAY_PROPERTIES_2_KHR
** ename:VK_STRUCTURE_TYPE_DISPLAY_PLANE_PROPERTIES_2_KHR
** ename:VK_STRUCTURE_TYPE_DISPLAY_MODE_PROPERTIES_2_KHR
** ename:VK_STRUCTURE_TYPE_DISPLAY_PLANE_INFO_2_KHR
** ename:VK_STRUCTURE_TYPE_DISPLAY_PLANE_CAPABILITIES_2_KHR
=== New Enums
None.
=== New Structures
* slink:VkDisplayProperties2KHR
* slink:VkDisplayPlaneProperties2KHR
* slink:VkDisplayModeProperties2KHR
* slink:VkDisplayPlaneInfo2KHR
* slink:VkDisplayPlaneCapabilities2KHR
=== New Functions
* flink:vkGetPhysicalDeviceDisplayProperties2KHR
* flink:vkGetPhysicalDeviceDisplayPlaneProperties2KHR
* flink:vkGetDisplayModeProperties2KHR
* flink:vkGetDisplayPlaneCapabilities2KHR
=== Issues
1) What should this extension be named?
*RESOLVED*: `VK_KHR_get_display_properties2`.
Other alternatives:
* `VK_KHR_display2`
* One extension, combined with `VK_KHR_surface_capabilites2`.
2) Should extensible input structs be added for these new functions:
*RESOLVED*:
* flink:vkGetPhysicalDeviceDisplayProperties2KHR: No.
The only current input is a slink:VkPhysicalDevice.
Other inputs wouldn't make sense.
* flink:vkGetPhysicalDeviceDisplayPlaneProperties2KHR: No.
The only current input is a slink:VkPhysicalDevice.
Other inputs wouldn't make sense.
* flink:vkGetDisplayModeProperties2KHR: No.
The only current inputs are a slink:VkPhysicalDevice and a
slink:VkDisplayModeKHR.
Other inputs wouldn't make sense.
3) Should additional display query functions be extended?
*RESOLVED*:
* flink:vkGetDisplayPlaneSupportedDisplaysKHR: No.
Extensions should instead extend
flink:vkGetDisplayPlaneCapabilitiesKHR().
=== Version History
* Revision 1, 2017-02-21 (James Jones)
- Initial draft.