| // Copyright 2017-2021 The Khronos Group, Inc. |
| // |
| // SPDX-License-Identifier: CC-BY-4.0 |
| |
| include::{generated}/meta/{refprefix}VK_KHR_get_surface_capabilities2.txt[] |
| |
| === 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 entry points to query device surface |
| capabilities in a way that can be easily extended by other extensions, |
| without introducing any further entry points. |
| This extension can be considered the `apiext:VK_KHR_surface` equivalent of |
| the `apiext:VK_KHR_get_physical_device_properties2` extension. |
| |
| include::{generated}/interfaces/VK_KHR_get_surface_capabilities2.txt[] |
| |
| === 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*: |
| |
| * flink:vkGetPhysicalDeviceSurfaceCapabilitiesKHR: Yes. |
| The need for this motivated the extension. |
| * flink:vkGetPhysicalDeviceSurfaceSupportKHR: No. |
| Currently only has boolean output. |
| Extensions should instead extend |
| flink:vkGetPhysicalDeviceSurfaceCapabilities2KHR. |
| * flink:vkGetPhysicalDeviceSurfaceFormatsKHR: Yes. |
| * flink:vkGetPhysicalDeviceSurfacePresentModesKHR: No. |
| Recent discussion concluded this introduced too much variability for |
| applications to deal with. |
| Extensions should instead extend |
| flink:vkGetPhysicalDeviceSurfaceCapabilities2KHR. |
| * flink:vkGetPhysicalDeviceXlibPresentationSupportKHR: Not in this |
| extension. |
| * flink:vkGetPhysicalDeviceXcbPresentationSupportKHR: Not in this |
| extension. |
| * flink:vkGetPhysicalDeviceWaylandPresentationSupportKHR: Not in this |
| extension. |
| * flink:vkGetPhysicalDeviceWin32PresentationSupportKHR: Not in this |
| extension. |
| |
| === Version History |
| |
| * Revision 1, 2017-02-27 (James Jones) |
| - Initial draft. |
