Name Strings

SPV_EXT_shader_image_int64

Contact

To report problems with this extension, please open a new issue at:

https://github.com/KhronosGroup/SPIRV-Headers

Contributors

  • Tobias Hector, AMD

  • Matthaeus Chajdas, AMD

  • Graham Wihlidal, Epic Games

Notice

Copyright (c) 2019 The Khronos Group Inc. Copyright terms at http://www.khronos.org/registry/speccopyright.html

Status

  • Complete

Version

Last Modified Date

2021-03-17

Revision

2

Dependencies

This extension is written against the SPIR-V Specification, Version 1.5, Revision 1, Unified.

This extension requires SPIR-V 1.0.

Overview

This extension enables the use of atomic, load, and store operations on images with a 64-bit format.

Extension Name

To use this extension within a SPIR-V module, the following OpExtension must be present in the module:

OpExtension "SPV_EXT_shader_image_int64"

Modifications to the SPIR-V Specification, Version 1.5

3.11 Image Formats

Modify Section 3.11, "Image Formats", adding these rows to the Image Formats table:

Image Format Enabling Capabilities

40

R64ui

Int64ImageEXT

41

R64i

Int64ImageEXT

3.31 Capabilities

Modify Section 3.31, "Capability", adding these rows to the Capability table:

Capability Enabling Capabilities

5016

Int64ImageEXT
Uses atomic, load, or store instructions on images with 64-bit integer types. If using atomics, Int64Atomics must be declared.

Int64

Revision History

Rev Date Author Changes

1

2019-10-23

Tobias Hector

Initial revision

2

2021-03-17

Spencer Fricke

Clarify Int64Atomics interaction