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57b7cd572d
* Update release number to 115.
GitHub issues:
* Add valid usage statements to slink:VkWriteDescriptorSet and
slink:VkCopyDescriptorSet specifying that updating immutable descriptors
with ename:VK_DESCRIPTOR_TYPE_SAMPLER is invalid, and that updating
ename:VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER ignores the update's
samplers (public issue 985).
* Document that the `manhtmlpages` target requires building with all
extensions enabled, in `BUILD.adoc` (public issue 992).
* Fix reference to the wrong subpass in valid usage statement for
slink:VkRenderPassCreateInfo (public pull request 994).
Internal Issues:
* Rename slink:VkPhysicalDeviceShaderIntegerFunctions2INTEL and
ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_INTEGER_FUNCTIONS2_FEATURES_INTEL
for consistency with global naming conventions, and to help code
generation in other projects (internal issue 1685).
* Update valid usage statements for image code:Offset / code:ConstOffset
usage in the <<textures-gather, Texel Gathering>> and
<<spirvenv-module-validation, Validation Rules within a Module>>
sections, and for the <<limits-minTexelGatherOffset>> and
<<limits-maxTexelGatherOffset>> limits (internal issue 1723).
* Require code:code:OpGroupNonUniformBroadcast to take a constant `Id`
operand in the <<spirvenv-module-validation, Validation Rules within a
Module>> sections (internal issue 1726).
* Note that the swapchain specified in slink:VkImageSwapchainCreateInfoKHR
when creating an image must match the one specified in
slink:VkBindImageMemorySwapchainInfoKHR when binding memory to the image
(internal issue 1729).
* Remove stext:KHR suffix from some structure cross-references that were
promoted to Vulkan 1.1 (internal issue 1730).
* Fix structure name in `structextends` attribute for
slink:VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT in `vk.xml`
(internal issue 1740).
* Fix an error in the code:ClipColor() pseudocode for
<<VK_EXT_blend_operation_advanced>> (internal issue 1741).
* Add a row for
ename:VK_QUERY_TYPE_ACCELERATION_STRUCTURE_COMPACTED_SIZE_NV to the
description of elink:VkQueryType, and make a few related minor text
cleanups.
* Rename slink:VkPhysicalDeviceFloat16Int8FeaturesKHR to
slink:VkPhysicalDeviceShaderFloat16Int8FeaturesKHR for consistency,
retaining aliases of the old structure name and structure type enum for
backwards compatibility.
54 lines
1.7 KiB
Plaintext
54 lines
1.7 KiB
Plaintext
// Copyright (c) 2014-2019 Khronos Group. This work is licensed under a
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// Creative Commons Attribution 4.0 International License; see
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// http://creativecommons.org/licenses/by/4.0/
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include::meta/VK_KHR_shader_float16_int8.txt[]
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*Last Modified Date*::
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2018-03-07
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*IP Status*::
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No known IP claims.
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*Interactions and External Dependencies*::
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- This extension interacts with `<<VK_KHR_8bit_storage>>`
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- This extension interacts with `<<VK_KHR_16bit_storage>>`
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- This extension interacts with `<<VK_KHR_shader_float_controls>>`
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*Contributors*::
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- Alexander Galazin, Arm
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- Jan-Harald Fredriksen, Arm
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- Jeff Bolz, NVIDIA
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- Graeme Leese, Broadcom
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- Daniel Rakos, AMD
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=== Description
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The `VK_KHR_shader_float16_int8` extension allows use of 16-bit
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floating-point types and 8-bit integer types in shaders for arithmetic
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operations.
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It introduces two new optional features pname:shaderFloat16 and
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pname:shaderInt8 which directly map to the code:Float16 and the code:Int8
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SPIR-V capabilities.
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The `VK_KHR_shader_float16_int8` extension also specifies precision
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requirements for half-precision floating-point SPIR-V operations.
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This extension does not enable use of 8-bit integer types or 16-bit
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floating-point types in any <<interfaces-iointerfaces, shader input and
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output interfaces>> and therefore does not supersede the
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`<<VK_KHR_8bit_storage>>` or `<<VK_KHR_16bit_storage>>` extensions.
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=== New Enum Constants
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* Extending elink:VkStructureType:
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES_KHR
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=== New Structures
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* slink:VkPhysicalDeviceShaderFloat16Int8FeaturesKHR
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=== New Functions
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* None
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=== Version History
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* Revision 1, 2018-03-07 (Alexander Galazin)
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- Initial draft
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