Safe Haskell	Safe-Inferred
Language	Haskell2010

Vulkan.Extensions.VK_EXT_shader_atomic_float2

Description

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

1

Ratification Status

Not ratified

Extension and Version Dependencies

VK_EXT_shader_atomic_float

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 requires the VK_EXT_shader_atomic_float extension.
This extension requires SPV_EXT_shader_atomic_float_min_max and SPV_EXT_shader_atomic_float16_add
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.

Synopsis

data PhysicalDeviceShaderAtomicFloat2FeaturesEXT = PhysicalDeviceShaderAtomicFloat2FeaturesEXT {
}
type EXT_SHADER_ATOMIC_FLOAT_2_SPEC_VERSION = 1
pattern EXT_SHADER_ATOMIC_FLOAT_2_SPEC_VERSION :: forall a. Integral a => a
type EXT_SHADER_ATOMIC_FLOAT_2_EXTENSION_NAME = "VK_EXT_shader_atomic_float2"
pattern EXT_SHADER_ATOMIC_FLOAT_2_EXTENSION_NAME :: forall a. (Eq a, IsString a) => a

Documentation

data PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #

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. PhysicalDeviceShaderAtomicFloat2FeaturesEXT can also be used in the pNext chain of DeviceCreateInfo to selectively enable these features.

Valid Usage (Implicit)

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.

Instances

Instances details

Storable PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_shader_atomic_float2 Methods sizeOf :: PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> Int # alignment :: PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> Int # peekElemOff :: Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> Int -> IO PhysicalDeviceShaderAtomicFloat2FeaturesEXT # pokeElemOff :: Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> Int -> PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO () # peekByteOff :: Ptr b -> Int -> IO PhysicalDeviceShaderAtomicFloat2FeaturesEXT # pokeByteOff :: Ptr b -> Int -> PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO () # peek :: Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO PhysicalDeviceShaderAtomicFloat2FeaturesEXT # poke :: Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO () #
Show PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_shader_atomic_float2 Methods showsPrec :: Int -> PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> ShowS # show :: PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> String # showList :: [PhysicalDeviceShaderAtomicFloat2FeaturesEXT] -> ShowS #
Eq PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_shader_atomic_float2 Methods (==) :: PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> Bool # (/=) :: PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> Bool #
FromCStruct PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_shader_atomic_float2 Methods peekCStruct :: Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #
ToCStruct PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_shader_atomic_float2 Methods withCStruct :: PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> (Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO b) -> IO b Source # pokeCStruct :: Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO b -> IO b Source # withZeroCStruct :: (Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO b) -> IO b Source # pokeZeroCStruct :: Ptr PhysicalDeviceShaderAtomicFloat2FeaturesEXT -> IO b -> IO b Source # cStructSize :: Int Source # cStructAlignment :: Int Source #
Zero PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_shader_atomic_float2 Methods zero :: PhysicalDeviceShaderAtomicFloat2FeaturesEXT Source #