Registered Extension Number

181

Revision

1

Extension and Version Dependencies

Deprecation state

Contact

Other Extension Metadata

Last Modified Date

2018-07-05

Interactions and External Dependencies
Contributors
  • Aaron Hagan, AMD

  • Daniel Rakos, AMD

  • Jeff Bolz, NVIDIA

  • Neil Henning, Codeplay

Description

This extension advertises the SPIR-V Int64Atomics capability for Vulkan, which allows a shader to contain 64-bit atomic operations on signed and unsigned integers. The supported operations include OpAtomicMin, OpAtomicMax, OpAtomicAnd, OpAtomicOr, OpAtomicXor, OpAtomicAdd, OpAtomicExchange, and OpAtomicCompareExchange.

Promotion to Vulkan 1.2

All functionality in this extension is included in core Vulkan 1.2, with the KHR suffix omitted. However, if Vulkan 1.2 is supported and this extension is not, the shaderBufferInt64Atomics capability is optional. The original type, enum and command names are still available as aliases of the core functionality.

New Structures

New Enum Constants

  • VK_KHR_SHADER_ATOMIC_INT64_EXTENSION_NAME

  • VK_KHR_SHADER_ATOMIC_INT64_SPEC_VERSION

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_INT64_FEATURES_KHR

New SPIR-V Capabilities

Version History

  • Revision 1, 2018-07-05 (Aaron Hagan)

    • Internal revisions

See Also

Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

Copyright 2014-2021 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0