VK_KHR_maintenance6

Other Extension Metadata

Last Modified Date

2023-08-03

Interactions and External Dependencies

• Interacts with VK_EXT_robustness2

Contributors

• Jon Leech, Khronos
• Stu Smith, AMD
• Mike Blumenkrantz, Valve
• Ralph Potter, Samsung
• James Fitzpatrick, Imagination Technologies
• Piers Daniell, NVIDIA
• Daniel Story, Nintendo

Description

VK_KHR_maintenance6 adds a collection of minor features, none of which would warrant an entire extension of their own.

The new features are as follows:

• VkBindMemoryStatusKHR may be included in the pNext chain of VkBindBufferMemoryInfo and VkBindImageMemoryInfo, allowing applications to identify individual resources for which memory binding failed during calls to vkBindBufferMemory2 and vkBindImageMemory2.
• A new property fragmentShadingRateClampCombinerInputs to indicate if an implementation clamps the inputs to fragment shading rate combiner operations.
• VK_NULL_HANDLE is allowed to be used when binding an index buffer, instead of a valid VkBuffer handle. When the nullDescriptor feature is enabled, every index fetched results in a value of zero.
• A new property maxCombinedImageSamplerDescriptorCount to indicate the maximum number of descriptors needed for any of the formats that require a sampler Y′C_BC_R conversion supported by the implementation.
• A new property blockTexelViewCompatibleMultipleLayers indicating whether VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT is allowed to be used with layerCount > 1
• pNext extensible *2 versions of all descriptor binding commands.

New Commands

• vkCmdBindDescriptorSets2KHR
• vkCmdPushConstants2KHR

If VK_EXT_descriptor_buffer is supported:

• vkCmdBindDescriptorBufferEmbeddedSamplers2EXT
• vkCmdSetDescriptorBufferOffsets2EXT

If VK_KHR_push_descriptor is supported:

• vkCmdPushDescriptorSet2KHR
• vkCmdPushDescriptorSetWithTemplate2KHR

New Structures

• VkBindDescriptorSetsInfoKHR
• VkPushConstantsInfoKHR
• Extending VkBindBufferMemoryInfo, VkBindImageMemoryInfo:
  • VkBindMemoryStatusKHR
• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceMaintenance6FeaturesKHR
• Extending VkPhysicalDeviceProperties2:
  • VkPhysicalDeviceMaintenance6PropertiesKHR

If VK_EXT_descriptor_buffer is supported:

• VkBindDescriptorBufferEmbeddedSamplersInfoEXT
• VkSetDescriptorBufferOffsetsInfoEXT

If VK_KHR_push_descriptor is supported:

• VkPushDescriptorSetInfoKHR
• VkPushDescriptorSetWithTemplateInfoKHR

New Enum Constants

• VK_KHR_MAINTENANCE_6_EXTENSION_NAME
• VK_KHR_MAINTENANCE_6_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_BIND_DESCRIPTOR_SETS_INFO_KHR
  • VK_STRUCTURE_TYPE_BIND_MEMORY_STATUS_KHR
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_6_FEATURES_KHR
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_6_PROPERTIES_KHR
  • VK_STRUCTURE_TYPE_PUSH_CONSTANTS_INFO_KHR

If VK_EXT_descriptor_buffer is supported:

• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_BIND_DESCRIPTOR_BUFFER_EMBEDDED_SAMPLERS_INFO_EXT
  • VK_STRUCTURE_TYPE_SET_DESCRIPTOR_BUFFER_OFFSETS_INFO_EXT

If VK_KHR_push_descriptor is supported:

• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PUSH_DESCRIPTOR_SET_INFO_KHR
  • VK_STRUCTURE_TYPE_PUSH_DESCRIPTOR_SET_WITH_TEMPLATE_INFO_KHR

Issues

None.

Version History

• Revision 1, 2023-08-01 (Jon Leech)
  • Initial revision