Vulkan.Extensions.VK_KHR_maintenance11

VkPhysicalDeviceMaintenance11FeaturesKHR - Structure describing whether the implementation supports maintenance11 functionality

Members

This structure describes the following feature:

Description

If the PhysicalDeviceMaintenance11FeaturesKHR structure is included in the pNext chain of the PhysicalDeviceFeatures2 structure passed to getPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a Device with any features described by PhysicalDeviceMaintenance11FeaturesKHR, it must add an instance of the structure, with the desired feature members set to TRUE, to the pNext chain of DeviceCreateInfo when creating the Device.

Structure Chaining

Extends the structures

• DeviceCreateInfo

• PhysicalDeviceFeatures2

See Also

VK_KHR_maintenance11, Bool32, StructureType

VkQueueFamilyOptimalImageTransferGranularityPropertiesKHR - Structure specifying the optimal image transfer granularity for a queue family

Description

If this structure is included in the pNext chain of the QueueFamilyProperties2 structure passed to getPhysicalDeviceQueueFamilyProperties2, then it is filled with the optimal image transfer granularity for the specified queue family.

The value returned in optimalImageTransferGranularity has a unit of compressed texel blocks for images having a block-compressed format, and a unit of texels otherwise.

Possible values of optimalImageTransferGranularity are:

• (0,0,0) specifies that an image copy operation is optimal only when copying whole mip levels, i.e. all of the following conditions are met:

  • The x, y, and z members of a Offset3D are zero.

  • The width, height, and depth members of a Extent3D parameter match the width, height, and depth of the image subresource corresponding to the parameter, respectively.

• (Ax, Ay, Az) where Ax, Ay, and Az are all integer powers of two. An image copy operation is optimal when all of the following conditions are met:

  • width of a Extent3D parameter is an integer multiple of Ax, or else x + width equals the width of the image subresource corresponding to the parameter.

  • height of a Extent3D parameter is an integer multiple of Ay, or else y + height equals the height of the image subresource corresponding to the parameter.

  • depth of a Extent3D parameter is an integer multiple of Az, or else z + depth equals the depth of the image subresource corresponding to the parameter.

  • If the format of the image corresponding to the parameters is one of the block-compressed formats then for the purposes of the above calculations the granularity must be scaled up by the compressed texel block dimensions.

While it is not required that copies are optimal, there may be a performance cost for copies not aligned to optimalImageTransferGranularity.

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_QUEUE_FAMILY_OPTIMAL_IMAGE_TRANSFER_GRANULARITY_PROPERTIES_KHR

Structure Chaining

Extends the structure

• QueueFamilyProperties2

See Also

VK_KHR_maintenance11, Extent3D, StructureType

VkShaderCreateFlagBitsEXT - Bitmask controlling how a shader object is created

Description

• SHADER_CREATE_LINK_STAGE_BIT_EXT specifies that a shader is linked to all other shaders created in the same createShadersEXT call whose ShaderCreateInfoEXT structures' flags include SHADER_CREATE_LINK_STAGE_BIT_EXT.

• SHADER_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT specifies that the SubgroupSize may vary in a task, mesh, or compute shader.

• SHADER_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT specifies that the subgroup sizes must be launched with all invocations active in a task, mesh, or compute shader.

• SHADER_CREATE_NO_TASK_SHADER_BIT_EXT specifies that a mesh shader must only be used without a task shader. Otherwise, the mesh shader must only be used with a task shader.

• SHADER_CREATE_DISPATCH_BASE_BIT_EXT specifies that a compute shader can be used with cmdDispatchBase with a non-zero base workgroup.

• SHADER_CREATE_FRAGMENT_SHADING_RATE_ATTACHMENT_BIT_EXT specifies that a fragment shader can be used with a fragment shading rate attachment.

• SHADER_CREATE_FRAGMENT_DENSITY_MAP_ATTACHMENT_BIT_EXT specifies that a fragment shader can be used with a fragment density map attachment.

• SHADER_CREATE_INDIRECT_BINDABLE_BIT_EXT specifies that the shader can be used in combination with https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#device-generated-commands.

• SHADER_CREATE_OPACITY_MICROMAP_DISALLOW_MIXED_SPECIAL_INDEX_BIT_EXT specifies that shader objects cannot be used with acceleration structures which are built with geometry that have an index buffer including both special indices and indices pointing to an associated micromap array. Geometry which has an index buffer using only special indices without an associated micromap array can be used with this flag.

• SHADER_CREATE_INDEPENDENT_SETS_BIT_KHR specifies that implementations must ensure that the properties and/or absence of a particular descriptor set do not influence any other descriptor sets for the shader. This allows shader objects to be created with a subset of the total descriptor sets.

• SHADER_CREATE_64_BIT_INDEXING_BIT_EXT specifies that the shader enables 64-bit indexing.

• SHADER_CREATE_DESCRIPTOR_HEAP_BIT_EXT specifies that the shader will use descriptor heap mappings instead of descriptor set layouts.

See Also

VK_EXT_shader_object, ShaderCreateFlagsEXT