Vulkan-Docs/appendices/VK_EXT_texel_buffer_alignment.txt

include::meta/VK_EXT_texel_buffer_alignment.txt[]

*Last Modified Date*::
    2019-06-06
*IP Status*::
    No known IP claims.
*Interactions and External Dependencies*::
*Contributors*::
  - Jeff Bolz, NVIDIA

This extension adds more expressive alignment requirements for uniform and
storage texel buffers.
Some implementations have single texel alignment requirements that can't be
expressed via
slink:VkPhysicalDeviceLimits::pname:minTexelBufferOffsetAlignment.

=== New Enum Constants

  * Extending elink:VkStructureType:
  ** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXEL_BUFFER_ALIGNMENT_FEATURES_EXT
  ** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXEL_BUFFER_ALIGNMENT_PROPERTIES_EXT

=== New Enums

None.

=== New Structures

  * slink:VkPhysicalDeviceTexelBufferAlignmentFeaturesEXT
  * slink:VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT

=== New Functions

None.

=== Issues

=== Version History

  * Revision 1, 2019-06-06 (Jeff Bolz)
    - Initial draft
Change log for June 30, 2019 Vulkan 1.1.113 spec update: * Update release number to 113. Github Issues: * Fix typo in `<<VK_EXT_global_priority>>` appendix (public issue 979). Internal Issues: * Expand the explanation of slink:VkSamplerYcbcrConversionImageFormatPropertiesKHR::pname:combinedImageSamplerDescriptorCount, and explain how it interacts with slink:VkWriteDescriptorSet, slink:VkDescriptorSetLayoutBinding::pname:descriptorCount, and slink:VkDescriptorPoolSize::pname:descriptorCount (internal issue 1643). * Clarify restrictions on components for code:OpImageGather in the <<spirvenv-module-validation, Validation Rules within a Module>> section (internal issue 1707). * Clarify the descriptions of <<limits-computeUnitsPerShaderArray, pname:computeUnitsPerShaderArray>> and <<limits-wavefrontSize, pname:wavefrontSize>> fields in slink:VkPhysicalDeviceShaderCorePropertiesAMD. New Extensions: * `<<VK_EXT_texel_buffer_alignment>>` * `<<VK_EXT_shader_demote_to_helper_invocation>>` 2019-06-29 23:14:02 -07:00			`include::meta/VK_EXT_texel_buffer_alignment.txt[]`

			`Last Modified Date::`
			`2019-06-06`
			`IP Status::`
			`No known IP claims.`
			`Interactions and External Dependencies::`
			`Contributors::`
			`- Jeff Bolz, NVIDIA`

			`This extension adds more expressive alignment requirements for uniform and`
			`storage texel buffers.`
			`Some implementations have single texel alignment requirements that can't be`
			`expressed via`
			`slink:VkPhysicalDeviceLimits::pname:minTexelBufferOffsetAlignment.`

			`=== New Enum Constants`

			`* Extending elink:VkStructureType:`
			`** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXEL_BUFFER_ALIGNMENT_FEATURES_EXT`
			`** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXEL_BUFFER_ALIGNMENT_PROPERTIES_EXT`

			`=== New Enums`

			`None.`

			`=== New Structures`

			`* slink:VkPhysicalDeviceTexelBufferAlignmentFeaturesEXT`
			`* slink:VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT`

			`=== New Functions`

			`None.`

			`=== Issues`

			`=== Version History`

			`* Revision 1, 2019-06-06 (Jeff Bolz)`
			`- Initial draft`