# VK_KHR_get_surface_capabilities2(3) Manual Page

## Name

VK_KHR_get_surface_capabilities2 - instance extension

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## Registered Extension Number

120

## Revision

1

## Ratification Status

Ratified

## Extension and Version Dependencies

VK_KHR_surface

## Contact

- James Jones [GitHub]cubanismo

## Other Extension Metadata

Last Modified Date

  2017-02-27

IP Status

  No known IP claims.

Contributors

  - Ian Elliott, Google

  - James Jones, NVIDIA

  - Alon Or-bach, Samsung

## Description

This extension provides new queries for device surface capabilities that can be easily extended by other extensions, without introducing any further queries. This extension can be considered the `VK_KHR_surface` equivalent of the `VK_KHR_get_physical_device_properties2` extension.

## New Commands

- vkGetPhysicalDeviceSurfaceCapabilities2KHR

- vkGetPhysicalDeviceSurfaceFormats2KHR

## New Structures

- VkPhysicalDeviceSurfaceInfo2KHR

- VkSurfaceCapabilities2KHR

- VkSurfaceFormat2KHR

## New Enum Constants

- `VK_KHR_GET_SURFACE_CAPABILITIES_2_EXTENSION_NAME`

- `VK_KHR_GET_SURFACE_CAPABILITIES_2_SPEC_VERSION`

- Extending VkStructureType:

  - `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SURFACE_INFO_2_KHR`

  - `VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR`

  - `VK_STRUCTURE_TYPE_SURFACE_FORMAT_2_KHR`

## Issues

1) What should this extension be named?

RESOLVED: `VK_KHR_get_surface_capabilities2`. Other alternatives:

- `VK_KHR_surface2`

- One extension, combining a separate display-specific query extension.

2) Should additional WSI query functions be extended?

RESOLVED:

- vkGetPhysicalDeviceSurfaceCapabilitiesKHR: Yes. The need for this motivated the extension.

- vkGetPhysicalDeviceSurfaceSupportKHR: No. Currently only has boolean output. Extensions should instead extend vkGetPhysicalDeviceSurfaceCapabilities2KHR.

- vkGetPhysicalDeviceSurfaceFormatsKHR: Yes.

- vkGetPhysicalDeviceSurfacePresentModesKHR: No. Recent discussion concluded this introduced too much variability for applications to deal with. Extensions should instead extend vkGetPhysicalDeviceSurfaceCapabilities2KHR.

- vkGetPhysicalDeviceXlibPresentationSupportKHR: Not in this extension.

- vkGetPhysicalDeviceXcbPresentationSupportKHR: Not in this extension.

- vkGetPhysicalDeviceWaylandPresentationSupportKHR: Not in this extension.

- vkGetPhysicalDeviceWin32PresentationSupportKHR: Not in this extension.

## Version History

- Revision 1, 2017-02-27 (James Jones)

  - Initial draft.

## See Also

No cross-references are available

## Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

## Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0