VK_SEC_ubm_surface

Other Extension Metadata

Last Modified Date

2026-01-26

IP Status

No known IP claims.

Contributors

• Ralph Potter, Samsung
• Isaac Hong, Samsung
• Jaeyoung Park, Samsung
• Changhwan Lee, Samsung
• Minji Choe, Samsung
• Krzysztof Buben, Samsung
• Mikolaj Chadzynski, Samsung
• Bohdan Soproniuk, Samsung

Description

The VK_SEC_ubm_surface extension is an instance extension. It provides a mechanism to create a VkSurfaceKHR object (defined by the VK_KHR_surface extension) that refers to a UBM ubm_surface, as well as a query to determine support for rendering to a UBM compositor.

New Commands

• vkCreateUbmSurfaceSEC
• vkGetPhysicalDeviceUbmPresentationSupportSEC

New Structures

• VkUbmSurfaceCreateInfoSEC

New Bitmasks

• VkUbmSurfaceCreateFlagsSEC

New Enum Constants

• VK_SEC_UBM_SURFACE_EXTENSION_NAME
• VK_SEC_UBM_SURFACE_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_UBM_SURFACE_CREATE_INFO_SEC

Issues

1) Does UBM need a way to query for compatibility between a particular physical device and a specific screen? This would be a more general query than vkGetPhysicalDeviceSurfaceSupportKHR: If it returned VK_TRUE, then the physical device could be assumed to support presentation to any window on that screen.

RESOLVED: Yes. vkGetPhysicalDeviceUbmPresentationSupportSEC was added to address this issue.

Version History

• Revision 1, 2026-01-30 (Krzysztof Buben)
  • Initial draft, based on the previous contents of VK_EXT_KHR_swapchain (later renamed VK_EXT_KHR_surface).