Vulkan.Extensions.VK_NV_push_constant_bank

VkPushConstantBankInfoNV - Structure specifying push constant bank information

Description

This structure can be chained to PushDataInfoEXT, PushConstantsInfo, DescriptorSetAndBindingMappingEXT, and IndirectCommandsLayoutTokenEXT via the pNext chain to specify push constant bank placement:

• When chained to PushDataInfoEXT, it specifies the hardware bank into which cmdPushDataEXT pushes the data.

• When chained to PushConstantsInfo, it specifies the hardware bank into which cmdPushConstants2 pushes the constants.

• When chained to DescriptorSetAndBindingMappingEXT, it specifies the hardware push data bank from which the push data is read.

• When chained to IndirectCommandsLayoutTokenEXT with INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_DATA_EXT, it specifies the hardware bank into which indirect push data is placed.

This allows for more flexible push constant management in descriptor heap scenarios where shaders access different root descriptors with specific bank requirements.

Valid Usage

• When chained to PushDataInfoEXT, if the command buffer is executing graphics operations, bank must be less than PhysicalDevicePushConstantBankPropertiesNV::maxGraphicsPushDataBanks

• When chained to PushDataInfoEXT, if the command buffer is executing compute operations, bank must be less than PhysicalDevicePushConstantBankPropertiesNV::maxComputePushDataBanks

• When chained to PushConstantsInfo, if VkPushConstantsInfo::stageFlags includes a graphics stage then bank must be less than PhysicalDevicePushConstantBankPropertiesNV::maxGraphicsPushConstantBanks

• When chained to PushConstantsInfo, if VkPushConstantsInfo::stageFlags includes a compute stage then bank must be less than PhysicalDevicePushConstantBankPropertiesNV::maxComputePushConstantBanks

• When chained to DescriptorSetAndBindingMappingEXT for a graphics shader stage, bank must be less than PhysicalDevicePushConstantBankPropertiesNV::maxGraphicsPushDataBanks

• When chained to DescriptorSetAndBindingMappingEXT for a compute shader stage, bank must be less than PhysicalDevicePushConstantBankPropertiesNV::maxComputePushDataBanks

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_PUSH_CONSTANT_BANK_INFO_NV

Structure Chaining

Extends the structures

• DescriptorSetAndBindingMappingEXT

• IndirectCommandsLayoutTokenEXT

• PushConstantsInfo

• PushDataInfoEXT

See Also

VK_NV_push_constant_bank, StructureType

VkPhysicalDevicePushConstantBankFeaturesNV - Structure describing push constant bank features

Members

This structure describes the following features:

Description

If the PhysicalDevicePushConstantBankFeaturesNV 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 PhysicalDevicePushConstantBankFeaturesNV, 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_NV_push_constant_bank, Bool32, StructureType

VkPhysicalDevicePushConstantBankPropertiesNV - Structure describing push constant bank properties

Members

This structure describes the following implementation-dependent limits:

Description

If the PhysicalDevicePushConstantBankPropertiesNV structure is included in the pNext chain of the PhysicalDeviceProperties2 structure passed to getPhysicalDeviceProperties2, it is filled in with each corresponding implementation-dependent property.

The number of banks available for descriptor heap usage (maxGraphicsPushDataBanks and maxComputePushDataBanks) is equal or greater than the number of banks available for non-descriptor heap usage (maxGraphicsPushConstantBanks and maxComputePushConstantBanks).

For graphics shaders, both descriptor heap and non-descriptor heap limits are greater than 1. For compute shaders, the number of banks is equal to or greater than 1.

Structure Chaining

Extends the structure

• PhysicalDeviceProperties2

See Also

VK_NV_push_constant_bank, StructureType