Modulevulkan-3.27GHC2021

Vulkan.Extensions.VK_EXT_shader_atomic_float2

Name

VK_EXT_shader_atomic_float2 - device extension

VK_EXT_shader_atomic_float2

Name String: VK_EXT_shader_atomic_float2

Extension Type

Device extension

Registered Extension Number

274

Revision

Ratification Status

Ratified

Extension and Version Dependencies

VK_EXT_shader_atomic_float

API Interactions

Interacts with VkPhysicalDeviceShaderAtomicFloat2FeaturesEXT::sparseImageFloat32AtomicMinMax

SPIR-V Dependencies

Contact

Faith Ekstrand @gfxstrand%0A*Here describe the issue or question you have about the VK_EXT_shader_atomic_float2 extension*

Other Extension Metadata

Last Modified Date: 2020-08-14

IP Status

No known IP claims.

Interactions and External Dependencies

This extension provides API support for GLSL_EXT_shader_atomic_float2

Contributors

Faith Ekstrand, Intel

Description

This extension allows a shader to perform 16-bit floating-point atomic operations on buffer and workgroup memory as well as floating-point atomic minimum and maximum operations on buffer, workgroup, and image memory. It advertises the SPIR-V AtomicFloat16AddEXT capability which allows atomic add operations on 16-bit floating-point numbers and the SPIR-V AtomicFloat16MinMaxEXT, AtomicFloat32MinMaxEXT and AtomicFloat64MinMaxEXT capabilities which allow atomic minimum and maximum operations on floating-point numbers. The supported operations include OpAtomicFAddEXT, OpAtomicFMinEXT and OpAtomicFMaxEXT.

New Structures

Extending PhysicalDeviceFeatures2, DeviceCreateInfo:
- PhysicalDeviceShaderAtomicFloat2FeaturesEXT

New Enum Constants

EXT_SHADER_ATOMIC_FLOAT_2_EXTENSION_NAME

Issues

1) Should this extension add support for 16-bit image atomics?

RESOLVED: No. While Vulkan supports creating storage images with FORMAT_R16_SFLOAT and doing load and store on them, the data in the shader has a 32-bit representation. Vulkan currently has no facility for even basic reading or writing such images using 16-bit float values in the shader. Adding such functionality would be required before 16-bit image atomics would make sense and is outside the scope of this extension.

New SPIR-V Capabilities

AtomicFloat32MinMaxEXT

Version History

Revision 1, 2020-08-14 (Faith Ekstrand)
- Internal revisions

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.

3 types

Packagevulkan-3.27
Exports5
LanguageGHC2021
LicenceBSD-3-Clause
SourceVK_EXT_shader_atomic_float2.hs

datadata PhysicalDeviceShaderAtomicFloat2FeaturesEXT

VkPhysicalDeviceShaderAtomicFloat2FeaturesEXT - Structure describing features supported by VK_EXT_shader_atomic_float2

Members

This structure describes the following features:

Description

If the PhysicalDeviceShaderAtomicFloat2FeaturesEXT structure is included in the pNext chain of the PhysicalDeviceFeatures2 structure passed to getPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a Device with any features described by PhysicalDeviceShaderAtomicFloat2FeaturesEXT, it must add an instance of the structure, with the desired feature members set to TRUE, to the pNext chain of DeviceCreateInfo when creating the Device.

Structure Chaining

Extends the structures

Constructors

PhysicalDeviceShaderAtomicFloat2FeaturesEXT
- shaderBufferFloat16Atomics :: Bool
  shaderBufferFloat16Atomics indicates whether shaders can perform 16-bit floating-point load, store, and exchange atomic operations on storage buffers.
- shaderBufferFloat16AtomicAdd :: Bool
  shaderBufferFloat16AtomicAdd indicates whether shaders can perform 16-bit floating-point add atomic operations on storage buffers.
- shaderBufferFloat16AtomicMinMax :: Bool
  shaderBufferFloat16AtomicMinMax indicates whether shaders can perform 16-bit floating-point min and max atomic operations on storage buffers.
- shaderBufferFloat32AtomicMinMax :: Bool
  shaderBufferFloat32AtomicMinMax indicates whether shaders can perform 32-bit floating-point min and max atomic operations on storage buffers.
- shaderBufferFloat64AtomicMinMax :: Bool
  shaderBufferFloat64AtomicMinMax indicates whether shaders can perform 64-bit floating-point min and max atomic operations on storage buffers.
- shaderSharedFloat16Atomics :: Bool
  shaderSharedFloat16Atomics indicates whether shaders can perform 16-bit floating-point load, store, and exchange atomic operations on shared and payload memory.
- shaderSharedFloat16AtomicAdd :: Bool
  shaderSharedFloat16AtomicAdd indicates whether shaders can perform 16-bit floating-point add atomic operations on shared and payload memory.
- shaderSharedFloat16AtomicMinMax :: Bool
  shaderSharedFloat16AtomicMinMax indicates whether shaders can perform 16-bit floating-point min and max atomic operations on shared and payload memory.
- shaderSharedFloat32AtomicMinMax :: Bool
  shaderSharedFloat32AtomicMinMax indicates whether shaders can perform 32-bit floating-point min and max atomic operations on shared and payload memory.
- shaderSharedFloat64AtomicMinMax :: Bool
  shaderSharedFloat64AtomicMinMax indicates whether shaders can perform 64-bit floating-point min and max atomic operations on shared and payload memory.
- shaderImageFloat32AtomicMinMax :: Bool
  shaderImageFloat32AtomicMinMax indicates whether shaders can perform 32-bit floating-point min and max atomic image operations.
- sparseImageFloat32AtomicMinMax :: Bool
  sparseImageFloat32AtomicMinMax indicates whether 32-bit floating-point min and max atomic operations can be used on sparse images.

Instances6Eq, Show, Storable, FromCStruct, ToCStruct, Zero

Eq PhysicalDeviceShaderAtomicFloat2FeaturesEXTDefined in vulkan-3.27 · Vulkan.Extensions.VK_EXT_shader_atomic_float2
Show PhysicalDeviceShaderAtomicFloat2FeaturesEXTDefined in vulkan-3.27 · Vulkan.Extensions.VK_EXT_shader_atomic_float2
Storable PhysicalDeviceShaderAtomicFloat2FeaturesEXTDefined in vulkan-3.27 · Vulkan.Extensions.VK_EXT_shader_atomic_float2
FromCStruct PhysicalDeviceShaderAtomicFloat2FeaturesEXTDefined in vulkan-3.27 · Vulkan.Extensions.VK_EXT_shader_atomic_float2
ToCStruct PhysicalDeviceShaderAtomicFloat2FeaturesEXTDefined in vulkan-3.27 · Vulkan.Extensions.VK_EXT_shader_atomic_float2
Zero PhysicalDeviceShaderAtomicFloat2FeaturesEXTDefined in vulkan-3.27 · Vulkan.Extensions.VK_EXT_shader_atomic_float2

typetype EXT_SHADER_ATOMIC_FLOAT_2_SPEC_VERSION = 1

patternpattern EXT_SHADER_ATOMIC_FLOAT_2_SPEC_VERSION :: Integral a => a

typetype EXT_SHADER_ATOMIC_FLOAT_2_EXTENSION_NAME = "VK_EXT_shader_atomic_float2"

patternpattern EXT_SHADER_ATOMIC_FLOAT_2_EXTENSION_NAME :: (Eq a, IsString a) => a

Vulkan.Extensions.VK_EXT_shader_atomic_float2

Name

VK_EXT_shader_atomic_float2

Other Extension Metadata

Description

New Structures

New Enum Constants

Issues

New SPIR-V Capabilities

Version History

See Also

Document Notes

Members

Description

Structure Chaining

See Also

Constructors