VK_KHR_maintenance7
Other Extension Metadata
Last Modified Date
2024-01-30
Interactions and External Dependencies###### Contributors
- Mike Blumenkrantz, Valve
- Hans-Kristian Arntzen, Valve
- Pan Gao, Huawei
- Tobias Hector, AMD
- Jon Leech, Khronos
- Daniel Story, Nintendo
- Shahbaz Youssefi, Google
- Yiwei Zhang, Google
- Matthew Netsch, Qualcomm
Description
VK_KHR_maintenance7 adds a collection of minor features, none of which would warrant an entire extension of their own.
The proposed new features are as follows:
- Add a property query to determine if a framebuffer writes to depth or stencil aspect does not trigger a write access in the sibling aspect. For example, this allows sampling stencil aspect as a texture while rendering to the sibling depth attachment and vice-versa given appropriate image layouts.
- Add a way to query information regarding the underlying devices in
environments where the Vulkan implementation is provided through layered
implementations.
For example, running on Mesa/Venus, driver ID is returned as
VK_DRIVER_ID_MESA_VENUS
, but it can be necessary to know what the real driver under the hood is. The new VkPhysicalDeviceLayeredApiPropertiesKHR structure can be used to gather information regarding layers underneath the top-level physical device. - Promote
VK_RENDERING_CONTENTS_INLINE_BIT_EXT
andVK_SUBPASS_CONTENTS_INLINE_AND_SECONDARY_COMMAND_BUFFERS_EXT
to KHR - Add a limit to report the maximum total count of dynamic uniform buffers and dynamic storage buffers that can be included in a pipeline layout.
- Require that for an unsigned integer query, the 32-bit result value must be equal to the 32 least significant bits of the equivalent 64-bit result value.
- Add query for robust access support when using fragment shading rate attachments
New Structures
- VkPhysicalDeviceLayeredApiPropertiesKHR
- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
- Extending VkPhysicalDeviceLayeredApiPropertiesKHR:
- Extending VkPhysicalDeviceProperties2:
New Enums
New Enum Constants
VK_KHR_MAINTENANCE_7_EXTENSION_NAME
VK_KHR_MAINTENANCE_7_SPEC_VERSION
- Extending VkRenderingFlagBits:
VK_RENDERING_CONTENTS_INLINE_BIT_KHR
- Extending VkStructureType:
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LAYERED_API_PROPERTIES_KHR
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LAYERED_API_PROPERTIES_LIST_KHR
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LAYERED_API_VULKAN_PROPERTIES_KHR
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_7_FEATURES_KHR
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_7_PROPERTIES_KHR
- Extending VkSubpassContents:
VK_SUBPASS_CONTENTS_INLINE_AND_SECONDARY_COMMAND_BUFFERS_KHR
Issues
None.
Version History
- Revision 1, 2024-01-30 (Jon Leech)
- Initial revision