{-# language CPP #-} -- | = Name -- -- VK_EXT_global_priority_query - device extension -- -- == VK_EXT_global_priority_query -- -- [__Name String__] -- @VK_EXT_global_priority_query@ -- -- [__Extension Type__] -- Device extension -- -- [__Registered Extension Number__] -- 389 -- -- [__Revision__] -- 1 -- -- [__Extension and Version Dependencies__] -- -- - Requires Vulkan 1.0 -- -- - Requires @VK_EXT_global_priority@ -- -- - Requires @VK_KHR_get_physical_device_properties2@ -- -- [__Contact__] -- -- - Yiwei Zhang -- > > -- -- == Other Extension Metadata -- -- [__Last Modified Date__] -- 2021-03-29 -- -- [__IP Status__] -- No known IP claims. -- -- [__Contributors__] -- -- - Yiwei Zhang, Google -- -- == Description -- -- This device extension allows applications to query the global queue -- priorities supported by a queue family. It allows implementations to -- report which global priority levels are treated differently by the -- implementation, instead of silently mapping multiple requested global -- priority levels to the same internal priority, or using device creation -- failure to signal that a requested priority is not supported. It is -- intended primarily for use by system integration along with certain -- platform-specific priority enforcement rules. -- -- == New Structures -- -- - Extending -- 'Vulkan.Core11.Promoted_From_VK_KHR_get_physical_device_properties2.PhysicalDeviceFeatures2', -- 'Vulkan.Core10.Device.DeviceCreateInfo': -- -- - 'PhysicalDeviceGlobalPriorityQueryFeaturesEXT' -- -- - Extending -- 'Vulkan.Core11.Promoted_From_VK_KHR_get_physical_device_properties2.QueueFamilyProperties2': -- -- - 'QueueFamilyGlobalPriorityPropertiesEXT' -- -- == New Enum Constants -- -- - 'EXT_GLOBAL_PRIORITY_QUERY_EXTENSION_NAME' -- -- - 'EXT_GLOBAL_PRIORITY_QUERY_SPEC_VERSION' -- -- - 'Vulkan.Core10.APIConstants.MAX_GLOBAL_PRIORITY_SIZE_EXT' -- -- - Extending 'Vulkan.Core10.Enums.StructureType.StructureType': -- -- - 'Vulkan.Core10.Enums.StructureType.STRUCTURE_TYPE_PHYSICAL_DEVICE_GLOBAL_PRIORITY_QUERY_FEATURES_EXT' -- -- - 'Vulkan.Core10.Enums.StructureType.STRUCTURE_TYPE_QUEUE_FAMILY_GLOBAL_PRIORITY_PROPERTIES_EXT' -- -- == Issues -- -- 1) Can we additionally query whether a caller is permitted to acquire a -- specific global queue priority in this extension? -- -- __RESOLVED__: No. Whether a caller has enough privilege goes with the -- OS, and the Vulkan driver cannot really guarantee that the privilege -- will not change in between this query and the actual queue creation -- call. -- -- 2) If more than 1 queue using global priority is requested, is there a -- good way to know which queue is failing the device creation? -- -- __RESOLVED__: No. There is not a good way at this moment, and it is also -- not quite actionable for the applications to know that because the -- information may not be accurate. Queue creation can fail because of -- runtime constraints like insufficient privilege or lack of resource, and -- the failure is not necessarily tied to that particular queue -- configuration requested. -- -- == Version History -- -- - Revision 1, 2021-03-29 (Yiwei Zhang) -- -- == See Also -- -- 'Vulkan.Core10.APIConstants.MAX_GLOBAL_PRIORITY_SIZE_EXT', -- 'PhysicalDeviceGlobalPriorityQueryFeaturesEXT', -- 'QueueFamilyGlobalPriorityPropertiesEXT' -- -- == Document Notes -- -- For more information, see the -- -- -- This page is a generated document. Fixes and changes should be made to -- the generator scripts, not directly. module Vulkan.Extensions.VK_EXT_global_priority_query ( PhysicalDeviceGlobalPriorityQueryFeaturesEXT , QueueFamilyGlobalPriorityPropertiesEXT ) where import Vulkan.CStruct (FromCStruct) import Vulkan.CStruct (ToCStruct) import Data.Kind (Type) data PhysicalDeviceGlobalPriorityQueryFeaturesEXT instance ToCStruct PhysicalDeviceGlobalPriorityQueryFeaturesEXT instance Show PhysicalDeviceGlobalPriorityQueryFeaturesEXT instance FromCStruct PhysicalDeviceGlobalPriorityQueryFeaturesEXT data QueueFamilyGlobalPriorityPropertiesEXT instance ToCStruct QueueFamilyGlobalPriorityPropertiesEXT instance Show QueueFamilyGlobalPriorityPropertiesEXT instance FromCStruct QueueFamilyGlobalPriorityPropertiesEXT