Deprecation state
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Promoted to Vulkan 1.1
Contact
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Piers Daniell pdaniell-nv
Other Extension Metadata
- Last Modified Date
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2018-03-13
- Interactions and External Dependencies
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Promoted to Vulkan 1.1 Core
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- Contributors
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Dan Ginsburg, Valve
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Daniel Koch, NVIDIA
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Daniel Rakos, AMD
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Jan-Harald Fredriksen, ARM
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Faith Ekstrand, Intel
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Jeff Bolz, NVIDIA
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Jesse Hall, Google
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John Kessenich, Google
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Michael Worcester, Imagination Technologies
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Neil Henning, Codeplay Software Ltd.
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Piers Daniell, NVIDIA
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Slawomir Grajewski, Intel
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Tobias Hector, Imagination Technologies
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Tom Olson, ARM
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Description
VK_KHR_maintenance1
adds a collection of minor features that were
intentionally left out or overlooked from the original Vulkan 1.0 release.
The new features are as follows:
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Allow 2D and 2D array image views to be created from 3D images, which can then be used as color framebuffer attachments. This allows applications to render to slices of a 3D image.
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Support vkCmdCopyImage between 2D array layers and 3D slices. This extension allows copying from layers of a 2D array image to slices of a 3D image and vice versa.
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Allow negative height to be specified in the VkViewport::
height
field to perform y-inversion of the clip-space to framebuffer-space transform. This allows apps to avoid having to usegl_Position.y = -gl_Position.y
in shaders also targeting other APIs. -
Allow implementations to express support for doing just transfers and clears of image formats that they otherwise support no other format features for. This is done by adding new format feature flags
VK_FORMAT_FEATURE_TRANSFER_SRC_BIT_KHR
andVK_FORMAT_FEATURE_TRANSFER_DST_BIT_KHR
. -
Support vkCmdFillBuffer on transfer-only queues. Previously vkCmdFillBuffer was defined to only work on command buffers allocated from command pools which support graphics or compute queues. It is now allowed on queues that just support transfer operations.
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Fix the inconsistency of how error conditions are returned between the vkCreateGraphicsPipelines and vkCreateComputePipelines functions and the vkAllocateDescriptorSets and vkAllocateCommandBuffers functions.
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Add new
VK_ERROR_OUT_OF_POOL_MEMORY_KHR
error so implementations can give a more precise reason for vkAllocateDescriptorSets failures. -
Add a new command vkTrimCommandPoolKHR which gives the implementation an opportunity to release any unused command pool memory back to the system.
Promotion to Vulkan 1.1
All functionality in this extension is included in core Vulkan 1.1, with the KHR suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.
New Enum Constants
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VK_KHR_MAINTENANCE1_EXTENSION_NAME
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VK_KHR_MAINTENANCE1_SPEC_VERSION
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VK_KHR_MAINTENANCE_1_EXTENSION_NAME
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VK_KHR_MAINTENANCE_1_SPEC_VERSION
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Extending VkFormatFeatureFlagBits:
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VK_FORMAT_FEATURE_TRANSFER_DST_BIT_KHR
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VK_FORMAT_FEATURE_TRANSFER_SRC_BIT_KHR
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Extending VkImageCreateFlagBits:
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VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT_KHR
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Extending VkResult:
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VK_ERROR_OUT_OF_POOL_MEMORY_KHR
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Version History
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Revision 1, 2016-10-26 (Piers Daniell)
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Internal revisions
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Revision 2, 2018-03-13 (Jon Leech)
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Add issue for zero-height viewports
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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.