Safe Haskell	Safe-Inferred
Language	Haskell2010

Vulkan.Extensions.VK_EXT_image_robustness

Description

Name

VK_EXT_image_robustness - device extension

VK_EXT_image_robustness

Name String: VK_EXT_image_robustness

Extension Type

Device extension

Registered Extension Number

336

Revision

1

Extension and Version Dependencies

Requires support for Vulkan 1.0
Requires VK_KHR_get_physical_device_properties2 to be enabled for any device-level functionality

Deprecation state

Promoted to Vulkan 1.3

Contact

Graeme Leese @gnl21%0A*Here describe the issue or question you have about the VK_EXT_image_robustness extension*

Other Extension Metadata

Last Modified Date: 2020-04-27

Interactions and External Dependencies

Promoted to Vulkan 1.3 Core

IP Status

No known IP claims.

Contributors

Graeme Leese, Broadcom
Jan-Harald Fredriksen, ARM
Jeff Bolz, NVIDIA
Spencer Fricke, Samsung
Courtney Goeltzenleuchter, Google
Slawomir Cygan, Intel

Description

This extension adds stricter requirements for how out of bounds reads from images are handled. Rather than returning undefined values, most out of bounds reads return R, G, and B values of zero and alpha values of either zero or one. Components not present in the image format may be set to zero or to values based on the format as described in Conversion to RGBA.

New Structures

Extending PhysicalDeviceFeatures2, DeviceCreateInfo:
- PhysicalDeviceImageRobustnessFeaturesEXT

New Enum Constants

EXT_IMAGE_ROBUSTNESS_EXTENSION_NAME

EXT_IMAGE_ROBUSTNESS_SPEC_VERSION
Extending StructureType:
- STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_ROBUSTNESS_FEATURES_EXT

Promotion to Vulkan 1.3

Functionality in this extension is included in core Vulkan 1.3, with the EXT suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.

Issues

How does this extension differ from VK_EXT_robustness2?

The guarantees provided by this extension are a subset of those provided by the robustImageAccess2 feature of VK_EXT_robustness2. Where this extension allows return values of (0, 0, 0, 0) or (0, 0, 0, 1), robustImageAccess2 requires that a particular value dependent on the image format be returned. This extension provides no guarantees about the values returned for an access to an invalid Lod.