C Specification

The VkPhysicalDeviceMaintenance9FeaturesKHR structure is defined as:

// Provided by VK_KHR_maintenance9
typedef struct VkPhysicalDeviceMaintenance9FeaturesKHR {
    VkStructureType    sType;
    void*              pNext;
    VkBool32           maintenance9;
} VkPhysicalDeviceMaintenance9FeaturesKHR;

Members

This structure describes the following feature:

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • maintenance9 indicates that the implementation supports the following:

    • The restriction that certain bitfield SPIR-V instructions only operate on 32-bit integers is relaxed.

    • The value returned when a vertex shader reads an unbound vertex attribute is defined by way of the defaultVertexAttributeValue property.

    • A new VkQueryPoolCreateFlagBits::VK_QUERY_POOL_CREATE_RESET_BIT_KHR flag can be used to initialize all queries in query pool to the reset state on creation.

    • vkCmdSetEvent2 may not provide a dependency other than the event src stage mask.

    • The effects of image memory barriers and image layout transitions on 3D images created with VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT are limited to only those slices specified in VkImageSubresourceRange

    • A device can be created with no queues. This can be used for compiling pipelines or shaders for the purpose of filling pipeline caches.

    • Queue family ownership transfers are no longer required when transitioning resources created with VK_SHARING_MODE_EXCLUSIVE between queue families that support VK_QUEUE_GRAPHICS_BIT and those that support only VK_QUEUE_TRANSFER_BIT.

    • image2DViewOf3DSparse enables 2D views of 3D sparse images.

Description

If the VkPhysicalDeviceMaintenance9FeaturesKHR structure is included in the pNext chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a VkDevice with any features described by VkPhysicalDeviceMaintenance9FeaturesKHR, it must add an instance of the structure, with the desired feature members set to VK_TRUE, to the pNext chain of VkDeviceCreateInfo when creating the VkDevice.

Valid Usage (Implicit)
  • VUID-VkPhysicalDeviceMaintenance9FeaturesKHR-sType-sType
    sType must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_9_FEATURES_KHR

See Also

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0