Package org.lwjgl.vulkan

Class KHRWorkgroupMemoryExplicitLayout

java.lang.Object

org.lwjgl.vulkan.KHRWorkgroupMemoryExplicitLayout

public final class KHRWorkgroupMemoryExplicitLayout
extends java.lang.Object

This extension adds Vulkan support for the SPV_KHR_workgroup_memory_explicit_layout SPIR-V extension, which allows shaders to explicitly define the layout of Workgroup storage class memory and create aliases between variables from that storage class in a compute shader.

The aliasing feature allows different “views” on the same data, so the shader can bulk copy data from another storage class using one type (e.g. an array of large vectors), and then use the data with a more specific type. It also enables reducing the amount of workgroup memory consumed by allowing the shader to alias data whose lifetimes do not overlap.

The explicit layout support and some form of aliasing is also required for layering OpenCL on top of Vulkan.

VK_KHR_workgroup_memory_explicit_layout

Name String

VK_KHR_workgroup_memory_explicit_layout

Extension Type

Device extension

Registered Extension Number

337

Revision

1

Extension and Version Dependencies

• Requires Vulkan 1.0
• Requires VK_KHR_get_physical_device_properties2

Contact

• Caio Marcelo de Oliveira Filho cmarcelo

Other Extension Metadata

Last Modified Date

2020-06-01

IP Status

No known IP claims.

Interactions and External Dependencies

• This extension requires SPV_KHR_workgroup_memory_explicit_layout
• This extension provides API support for GL_EXT_shared_memory_block

Contributors

• Caio Marcelo de Oliveira Filho, Intel
• Jeff Bolz, NVIDIA
• Graeme Leese, Broadcom
• Jason Ekstrand, Intel
• Daniel Koch, NVIDIA

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	VK_KHR_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_EXTENSION_NAME	The extension name.
static int	VK_KHR_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_SPEC_VERSION	The extension specification version.
static int	VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_FEATURES_KHR	Extends VkStructureType.

Method Summary

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VK_KHR_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_SPEC_VERSION

public static final int VK_KHR_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_SPEC_VERSION

The extension specification version.

See Also:

Constant Field Values

VK_KHR_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_EXTENSION_NAME

public static final java.lang.String VK_KHR_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_EXTENSION_NAME

The extension name.

See Also:

Constant Field Values

VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_FEATURES_KHR

public static final int VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_FEATURES_KHR

Extends VkStructureType.

See Also:

Constant Field Values