1// Copyright 2018-2021 The Khronos Group Inc.
2//
3// SPDX-License-Identifier: CC-BY-4.0
4
5include::{generated}/meta/{refprefix}VK_EXT_shader_atomic_float.txt[]
6
7=== Other Extension Metadata
8
9*Last Modified Date*::
10    2020-07-15
11*IP Status*::
12    No known IP claims.
13*Interactions and External Dependencies*::
14  - This extension requires
15    {spirv}/EXT/SPV_EXT_shader_atomic_float_add.html[`SPV_EXT_shader_atomic_float_add`]
16  - This extension provides API support for
17    https://github.com/KhronosGroup/GLSL/tree/master/extensions/ext/GLSL_EXT_shader_atomic_float.txt[`GL_EXT_shader_atomic_float`]
18*Contributors*::
19  - Vikram Kushwaha, NVIDIA
20  - Jeff Bolz, NVIDIA
21
22=== Description
23
24This extension allows a shader to contain floating-point atomic operations
25on buffer, workgroup, and image memory.
26It also advertises the SPIR-V code:AtomicFloat32AddEXT and
27code:AtomicFloat64AddEXT capabilities that allows atomic addition on
28floating-points numbers.
29The supported operations include code:OpAtomicFAddEXT,
30code:OpAtomicExchange, code:OpAtomicLoad and code:OpAtomicStore.
31
32include::{generated}/interfaces/VK_EXT_shader_atomic_float.txt[]
33
34=== New SPIR-V Capabilities
35
36  * <<spirvenv-capabilities-table-AtomicFloat32AddEXT,
37    code:AtomicFloat32AddEXT>>
38  * <<spirvenv-capabilities-table-AtomicFloat64AddEXT,
39    code:AtomicFloat64AddEXT>>
40
41=== Version History
42
43  * Revision 1, 2020-07-15 (Vikram Kushwaha)
44    - Internal revisions
45