C Specification

The VkPhysicalDeviceWorkgroupMemoryExplicitLayoutFeaturesKHR structure is defined as:

// Provided by VK_KHR_workgroup_memory_explicit_layout
typedef struct VkPhysicalDeviceWorkgroupMemoryExplicitLayoutFeaturesKHR {
    VkStructureType    sType;
    void*              pNext;
    VkBool32           workgroupMemoryExplicitLayout;
    VkBool32           workgroupMemoryExplicitLayoutScalarBlockLayout;
    VkBool32           workgroupMemoryExplicitLayout8BitAccess;
    VkBool32           workgroupMemoryExplicitLayout16BitAccess;
} VkPhysicalDeviceWorkgroupMemoryExplicitLayoutFeaturesKHR;

Members

This structure describes the following features:

Description

  • sType is the type of this structure.

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

  • workgroupMemoryExplicitLayout indicates whether the implementation supports the SPIR-V WorkgroupMemoryExplicitLayoutKHR capability.

  • workgroupMemoryExplicitLayoutScalarBlockLayout indicates whether the implementation supports scalar alignment for laying out Workgroup Blocks.

  • workgroupMemoryExplicitLayout8BitAccess indicates whether objects in the Workgroup storage class with the Block decoration can have 8-bit integer members. If this feature is not enabled, 8-bit integer members must not be used in such objects. This also indicates whether shader modules can declare the WorkgroupMemoryExplicitLayout8BitAccessKHR capability.

  • workgroupMemoryExplicitLayout16BitAccess indicates whether objects in the Workgroup storage class with the Block decoration can have 16-bit integer and 16-bit floating-point members. If this feature is not enabled, 16-bit integer or 16-bit floating-point members must not be used in such objects. This also indicates whether shader modules can declare the WorkgroupMemoryExplicitLayout16BitAccessKHR capability.

If the VkPhysicalDeviceWorkgroupMemoryExplicitLayoutFeaturesKHR 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. VkPhysicalDeviceWorkgroupMemoryExplicitLayoutFeaturesKHR can also be used in the pNext chain of VkDeviceCreateInfo to selectively enable these features.

Valid Usage (Implicit)

  • VUID-VkPhysicalDeviceWorkgroupMemoryExplicitLayoutFeaturesKHR-sType-sType
    sType must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_FEATURES_KHR

See Also

VK_KHR_workgroup_memory_explicit_layout, VkBool32, VkStructureType

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

Copyright 2014-2021 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0