VK_KHR_surface_protected_capabilities

Other Extension Metadata

Last Modified Date

2018-12-18

IP Status

No known IP claims.

Contributors

• Sandeep Shinde, NVIDIA
• James Jones, NVIDIA
• Daniel Koch, NVIDIA

Description

This extension extends VkSurfaceCapabilities2KHR, providing applications a way to query whether swapchains can be created with the VK_SWAPCHAIN_CREATE_PROTECTED_BIT_KHR flag set.

Vulkan 1.1 added (optional) support for protect memory and protected resources including buffers (VK_BUFFER_CREATE_PROTECTED_BIT), images (VK_IMAGE_CREATE_PROTECTED_BIT), and swapchains (VK_SWAPCHAIN_CREATE_PROTECTED_BIT_KHR). However, on implementations which support multiple windowing systems, not all window systems may be able to provide a protected display path.

This extension provides a way to query if a protected swapchain created for a surface (and thus a specific windowing system) can be displayed on screen. It extends the existing VkSurfaceCapabilities2KHR structure with a new VkSurfaceProtectedCapabilitiesKHR structure from which the application can obtain information about support for protected swapchain creation through vkGetPhysicalDeviceSurfaceCapabilities2KHR.

New Structures

• Extending VkSurfaceCapabilities2KHR:
  • VkSurfaceProtectedCapabilitiesKHR

New Enum Constants

• VK_KHR_SURFACE_PROTECTED_CAPABILITIES_EXTENSION_NAME
• VK_KHR_SURFACE_PROTECTED_CAPABILITIES_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_SURFACE_PROTECTED_CAPABILITIES_KHR

Version History

• Revision 1, 2018-12-18 (Sandeep Shinde, Daniel Koch)
  • Internal revisions.