148 lines
5.1 KiB
Plaintext
148 lines
5.1 KiB
Plaintext
// Copyright (c) 2016-2018 Khronos Group. This work is licensed under a
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// Creative Commons Attribution 4.0 International License; see
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// http://creativecommons.org/licenses/by/4.0/
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include::meta/VK_KHR_get_physical_device_properties2.txt[]
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*Last Modified Date*::
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2017-09-05
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*IP Status*::
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No known IP claims.
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*Interactions and External Dependencies*::
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- Promoted to Vulkan 1.1 Core
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*Contributors*::
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- Jeff Bolz, NVIDIA
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- Ian Elliott, Google
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This extension provides new entry points to query device features, device
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properties, and format properties in a way that can be easily extended by
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other extensions, without introducing any further entry points.
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The Vulkan 1.0 feature/limit/formatproperty structures do not include
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ptext:sType/ptext:pNext members.
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This extension wraps them in new structures with ptext:sType/ptext:pNext
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members, so an application can query a chain of feature/limit/formatproperty
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structures by constructing the chain and letting the implementation fill
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them in.
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A new command is added for each ftext:vkGetPhysicalDevice* command in core
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Vulkan 1.0.
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The new feature structure (and a chain of extension structures) can also be
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passed in to device creation to enable features.
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This extension also allows applications to use the physical-device
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components of device extensions before flink:vkCreateDevice is called.
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=== New Object Types
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None.
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=== New Enum Constants
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* Extending elink:VkStructureType:
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2_KHR
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2_KHR
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** ename:VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2_KHR
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** ename:VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2_KHR
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2_KHR
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** ename:VK_STRUCTURE_TYPE_QUEUE_FAMILY_PROPERTIES_2_KHR
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_PROPERTIES_2_KHR
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** ename:VK_STRUCTURE_TYPE_SPARSE_IMAGE_FORMAT_PROPERTIES_2_KHR
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SPARSE_IMAGE_FORMAT_INFO_2_KHR
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=== New Enums
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None.
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=== New Structures
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* slink:VkPhysicalDeviceFeatures2KHR
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* slink:VkPhysicalDeviceProperties2KHR
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* slink:VkFormatProperties2KHR
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* slink:VkImageFormatProperties2KHR
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* slink:VkPhysicalDeviceImageFormatInfo2KHR
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* slink:VkQueueFamilyProperties2KHR
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* slink:VkPhysicalDeviceMemoryProperties2KHR
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* slink:VkSparseImageFormatProperties2KHR
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* slink:VkPhysicalDeviceSparseImageFormatInfo2KHR
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=== New Functions
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* flink:vkGetPhysicalDeviceFeatures2KHR
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* flink:vkGetPhysicalDeviceProperties2KHR
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* flink:vkGetPhysicalDeviceFormatProperties2KHR
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* flink:vkGetPhysicalDeviceImageFormatProperties2KHR
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* flink:vkGetPhysicalDeviceQueueFamilyProperties2KHR
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* flink:vkGetPhysicalDeviceMemoryProperties2KHR
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* flink:vkGetPhysicalDeviceSparseImageFormatProperties2KHR
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=== Promotion to Vulkan 1.1
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All functionality in this extension is included in core Vulkan 1.1, with the
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KHR suffix omitted.
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The original type, enum and command names are still available as aliases of
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the core functionality.
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=== Issues
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None.
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=== Examples
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[source,c++]
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----------------------------------------
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// Get features with a hypothetical future extension.
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VkHypotheticalExtensionFeaturesKHR hypotheticalFeatures =
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{
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VK_STRUCTURE_TYPE_HYPOTHETICAL_FEATURES_KHR, // sType
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NULL, // pNext
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};
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VkPhysicalDeviceFeatures2KHR features =
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{
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VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2_KHR, // sType
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&hypotheticalFeatures, // pNext
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};
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// After this call, features and hypotheticalFeatures have been filled out.
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vkGetPhysicalDeviceFeatures2KHR(physicalDevice, &features);
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// Properties/limits can be chained and queried similarly.
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// Enable some features:
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VkHypotheticalExtensionFeaturesKHR enabledHypotheticalFeatures =
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{
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VK_STRUCTURE_TYPE_HYPOTHETICAL_FEATURES_KHR, // sType
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NULL, // pNext
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};
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VkPhysicalDeviceFeatures2KHR enabledFeatures =
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{
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VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2_KHR, // sType
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&enabledHypotheticalFeatures, // pNext
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};
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enabledFeatures.features.xyz = VK_TRUE;
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enabledHypotheticalFeatures.abc = VK_TRUE;
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VkDeviceCreateInfo deviceCreateInfo =
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{
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VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, // sType
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&enabledFeatures, // pNext
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...
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NULL, // pEnabledFeatures
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}
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VkDevice device;
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vkCreateDevice(physicalDevice, &deviceCreateInfo, NULL, &device);
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----------------------------------------
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=== Version History
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* Revision 1, 2016-09-12 (Jeff Bolz)
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- Internal revisions
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* Revision 2, 2016-11-02 (Ian Elliott)
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- Added ability for applications to use the physical-device components of
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device extensions before vkCreateDevice is called.
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