Modulevulkan-3.27GHC2021

Vulkan.Extensions.VK_KHR_portability_subset

Name

VK_KHR_portability_subset - device extension

VK_KHR_portability_subset

Name String: VK_KHR_portability_subset

Extension Type

Device extension

Registered Extension Number

164

Revision

Ratification Status

Ratified

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

Vulkan Version 1.1

__This is a provisional extension and must be used with caution. See the description of provisional header files for enablement and stability details.__

Contact

Bill Hollings @billhollings%0A*Here describe the issue or question you have about the VK_KHR_portability_subset extension*

Other Extension Metadata

Last Modified Date: 2020-07-21

IP Status

No known IP claims.

Contributors

Bill Hollings, The Brenwill Workshop Ltd.
Daniel Koch, NVIDIA
Dzmitry Malyshau, Mozilla
Chip Davis, CodeWeavers
Dan Ginsburg, Valve
Mike Weiblen, LunarG
Neil Trevett, NVIDIA
Alexey Knyazev, Independent

Description

The VK_KHR_portability_subset extension allows a non-conformant Vulkan implementation to be built on top of another non-Vulkan graphics API, and identifies differences between that implementation and a fully-conformant native Vulkan implementation.

This extension provides Vulkan implementations with the ability to mark otherwise-required capabilities as unsupported, or to establish additional properties and limits that the application should adhere to in order to guarantee portable behavior and operation across platforms, including platforms where Vulkan is not natively supported.

The goal of this specification is to document, and make queryable, capabilities which are required to be supported by a fully-conformant Vulkan 1.0 implementation, but may be optional for an implementation of the Vulkan 1.0 Portability Subset.

The intent is that this extension will be advertised only on implementations of the Vulkan 1.0 Portability Subset, and not on conformant implementations of Vulkan 1.0. Fully-conformant Vulkan implementations provide all the required capabilities, and so will not provide this extension. Therefore, the existence of this extension can be used to determine that an implementation is likely not fully conformant with the Vulkan spec.

If this extension is supported by the Vulkan implementation, the application must enable this extension.

This extension defines several new structures that can be chained to the existing structures used by certain standard Vulkan calls, in order to query for non-conformant portable behavior.

New Structures

Extending PhysicalDeviceFeatures2, DeviceCreateInfo:
- PhysicalDevicePortabilitySubsetFeaturesKHR

Extending PhysicalDeviceProperties2:
- PhysicalDevicePortabilitySubsetPropertiesKHR

New Enum Constants

KHR_PORTABILITY_SUBSET_EXTENSION_NAME

Issues

None.

Version History

Revision 1, 2020-07-21 (Bill Hollings)
- Initial draft.

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.

4 types

Packagevulkan-3.27
Exports6
LanguageGHC2021
LicenceBSD-3-Clause
SourceVK_KHR_portability_subset.hs

datadata PhysicalDevicePortabilitySubsetFeaturesKHR

VkPhysicalDevicePortabilitySubsetFeaturesKHR - Structure describing the features that may not be supported by an implementation of the Vulkan 1.0 Portability Subset

Members

This structure describes the following features:

Description

If the PhysicalDevicePortabilitySubsetFeaturesKHR 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 PhysicalDevicePortabilitySubsetFeaturesKHR, 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

PhysicalDevicePortabilitySubsetFeaturesKHR
- constantAlphaColorBlendFactors :: Bool
  constantAlphaColorBlendFactors indicates whether this implementation supports constant alpha https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#framebuffer-blendfactors used as source or destination color https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#framebuffer-blending.
- events :: Bool
  events indicates whether this implementation supports synchronization using https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#synchronization-events.
- imageViewFormatReinterpretation :: Bool
  imageViewFormatReinterpretation indicates whether this implementation supports a ImageView being created with a texel format containing a different number of components, or a different number of bits in each component, than the texel format of the underlying Image.
- imageViewFormatSwizzle :: Bool
  imageViewFormatSwizzle indicates whether this implementation supports remapping format components using ImageViewCreateInfo::components.
- imageView2DOn3DImage :: Bool
  imageView2DOn3DImage indicates whether this implementation supports a Image being created with the IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT flag set, permitting a 2D or 2D array image view to be created on a 3D Image.
- multisampleArrayImage :: Bool
  multisampleArrayImage indicates whether this implementation supports a Image being created as a 2D array with multiple samples per texel.
- mutableComparisonSamplers :: Bool
  mutableComparisonSamplers indicates whether this implementation allows descriptors with comparison samplers to be updated.
- pointPolygons :: Bool
  pointPolygons indicates whether this implementation supports https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#primsrast using a point https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#primsrast-polygonmode.
- samplerMipLodBias :: Bool
  samplerMipLodBias indicates whether this implementation supports setting a mipmap LOD bias value when creating a sampler.
- separateStencilMaskRef :: Bool
  separateStencilMaskRef indicates whether this implementation supports separate front and back https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#fragops-stencil reference values.
- shaderSampleRateInterpolationFunctions :: Bool
  shaderSampleRateInterpolationFunctions indicates whether this implementation supports fragment shaders which use the InterpolationFunction capability and the extended instructions InterpolateAtCentroid, InterpolateAtOffset, and InterpolateAtSample from the GLSL.std.450 extended instruction set. This member is only meaningful if the sampleRateShading feature is supported.
- tessellationIsolines :: Bool
  tessellationIsolines indicates whether this implementation supports isoline output from the https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#tessellation stage of a graphics pipeline. This member is only meaningful if the tessellationShader feature is supported.
- tessellationPointMode :: Bool
  tessellationPointMode indicates whether this implementation supports point output from the https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#tessellation stage of a graphics pipeline. This member is only meaningful if the tessellationShader feature is supported.
- triangleFans :: Bool
  triangleFans indicates whether this implementation supports https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#drawing-triangle-fans primitive topology.
- vertexAttributeAccessBeyondStride :: Bool
  vertexAttributeAccessBeyondStride indicates whether this implementation supports accessing a vertex input attribute beyond the stride of the corresponding vertex input binding.

Instances6Eq, Show, Storable, FromCStruct, ToCStruct, Zero

Eq PhysicalDevicePortabilitySubsetFeaturesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
Show PhysicalDevicePortabilitySubsetFeaturesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
Storable PhysicalDevicePortabilitySubsetFeaturesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
FromCStruct PhysicalDevicePortabilitySubsetFeaturesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
ToCStruct PhysicalDevicePortabilitySubsetFeaturesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
Zero PhysicalDevicePortabilitySubsetFeaturesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset

datadata PhysicalDevicePortabilitySubsetPropertiesKHR

VkPhysicalDevicePortabilitySubsetPropertiesKHR - Structure describing additional properties supported by a portable implementation

Description

If the PhysicalDevicePortabilitySubsetPropertiesKHR structure is included in the pNext chain of the PhysicalDeviceProperties2 structure passed to getPhysicalDeviceProperties2, it is filled in with each corresponding implementation-dependent property.

Structure Chaining

Extends the structure

PhysicalDeviceProperties2

Constructors

PhysicalDevicePortabilitySubsetPropertiesKHR
- minVertexInputBindingStrideAlignment :: Word32
  minVertexInputBindingStrideAlignment indicates the minimum alignment for vertex input strides. VertexInputBindingDescription::stride must be a multiple of, and at least as large as, this value. The value must be a power of two.

Instances6Eq, Show, Storable, FromCStruct, ToCStruct, Zero

Eq PhysicalDevicePortabilitySubsetPropertiesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
Show PhysicalDevicePortabilitySubsetPropertiesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
Storable PhysicalDevicePortabilitySubsetPropertiesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
FromCStruct PhysicalDevicePortabilitySubsetPropertiesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
ToCStruct PhysicalDevicePortabilitySubsetPropertiesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset
Zero PhysicalDevicePortabilitySubsetPropertiesKHRDefined in vulkan-3.27 · Vulkan.Extensions.VK_KHR_portability_subset

typetype KHR_PORTABILITY_SUBSET_SPEC_VERSION = 1

patternpattern KHR_PORTABILITY_SUBSET_SPEC_VERSION :: Integral a => a

typetype KHR_PORTABILITY_SUBSET_EXTENSION_NAME = "VK_KHR_portability_subset"

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

Vulkan.Extensions.VK_KHR_portability_subset

Name

VK_KHR_portability_subset

Other Extension Metadata

Description

New Structures

New Enum Constants

Issues

Version History

See Also

Document Notes

Members

Description

Structure Chaining

See Also

Constructors

Description

Structure Chaining

See Also

Constructors