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b9e9296cd8
* Bump API patch number and header version number to 53 for this update.
Github Issues:
Internal Issues:
* Clarify mappings of coordinates for mutable, compatible image views in
slink:VkImageViewCreateInfo (internal issue 815).
* Make ename:VK_BIND_SFR_BIT require a logical device with multiple
physical devices, so that standard sparse image block dimensions are
only required on systems that support multi-GPU (internal issue 835).
* Convert all files from use of // refBegin .. // refEnd comments to
delimit ref pages, to use of open blocks, and update style guide
accordingly (internal issue 839).
* Add valid usage for slink:VkWriteDescriptorSet when performing updates
to a ename:VK_STORAGE_IMAGE descriptor with layout
ename:VK_IMAGE_LAYOUT_GENERAL.
* Add a hack to the validity generator script to support an odd
interaction between flink:vkCmdFillBuffer and an extension (internal
issue 853).
* Remove redundant text describing slink:VkBufferCreateInfo::pname:usage,
which was already covered by implicit valid usage (internal issue 854).
* Update implicit validity generator script to properly handle the
pname:sType and pname:pNext members of "returnedonly" structures
(internal issue 874).
* Note that slink:VkApplicationInfo::pname:pApplicationName &
slink:VkApplicationInfo::pname:pEngineName are optional, and add missing
implicit valid usage statements for flink:vkDestroyInstance.
* Added missing valid usage for flink:vkCmdWriteTimestamp to require a
timestamp query pool.
* Simplify and/or split "`non-atomic`" valid usage statements.
New Extensions:
* `VK_AMD_gpu_shader_int16`
* `VK_EXT_blend_operation_advanced`
* `VK_EXT_sampler_filter_minmax`
* `VK_NV_framebuffer_mixed_samples`
-----------------------------------------------------
Note: the 1.0.52 spec wasn't published on github, so the 1.0.53 release
combines both change sets.
-----------------------------------------------------
Change log for June 13, 2017 Vulkan 1.0.52 spec update:
* Bump API patch number and header version number to 52 for this update.
Github Issues:
Internal Issues:
* Clarify behavior when non-coherent memory has
<<memory-device-unmap-does-not-flush, not been flushed before being
unmapped>> (internal issue 819).
* Fix description of code:WorkgroupSize builtin to note it decorates an
object, not a variable (internal issue 836).
* Fix asciidoc attributes so that trailing '{plus}' symbols in [eq] style
equations are rendered properly (internal issue 845).
* Add language to the "`Extension Handles, Objects, Enums, and Typedefs`"
section of the Procedures and Conventions document stating that any new
handle type requires a corresponding entry in the elink:VkObjectType
enumerated type (internal issue 856).
* Update style guide to use slink macro for Vulkan handle type names, and
define narrow conditions under which to use the *name and *text macros
instead of *link (internal issue 886).
* Add a dependency of the <<VK_KHX_device_group,VK_KHX_device_group>>
extension on VK_KHX_device_group_creation to +vk.xml+ and the extension
appendix.
* Change the copyright on Vulkan specification asciidoc *source* files to
CC-BY 4.0, and update the proprietary Khronos copyright applied to the
generated *output* formats (internal issue 327). This enables broader
re-use and modification of the Vulkan specification sources, while not
affecting the Reciprocal IP License between Vulkan Adopters and Working
Group Members.
New Extensions:
* `VK_NV_fill_rectangle`
* `VK_NV_fragment_coverage_to_color`
103 lines
2.9 KiB
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103 lines
2.9 KiB
Plaintext
// Copyright (c) 2016-2017 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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[[VK_KHX_device_group_creation]]
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== VK_KHX_device_group_creation
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*Name String*::
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+VK_KHX_device_group_creation+
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*Extension Type*::
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Instance extension
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*Registered Extension Number*::
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71
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*Status*::
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Draft.
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*Last Modified Date*::
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2016-10-19
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*Revision*::
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1
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*IP Status*::
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No known IP claims.
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*Dependencies*::
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- This extension is written against version 1.0 of the Vulkan API.
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*Contributors*::
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- Jeff Bolz, NVIDIA
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*Contacts*::
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- Jeff Bolz (jbolz 'at' nvidia.com)
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This extension provides instance-level commands to enumerate groups of
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physical devices, and to create a logical device from a subset of one of
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those groups.
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Such a logical device can then be used with new features in the
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VK_KHX_device_group extension.
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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_GROUP_PROPERTIES_KHX
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* Extending elink:VkMemoryHeapFlagBits
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** ename:VK_MEMORY_HEAP_MULTI_INSTANCE_BIT_KHX
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=== New Enums
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None.
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=== New Structures
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* slink:VkPhysicalDeviceGroupPropertiesKHX
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* slink:VkDeviceGroupDeviceCreateInfoKHX
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=== New Functions
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* flink:vkEnumeratePhysicalDeviceGroupsKHX
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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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VkDeviceCreateInfo devCreateInfo = { VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO };
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// (not shown) fill out devCreateInfo as usual.
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uint32_t deviceGroupCount = 0;
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VkPhysicalDeviceGroupPropertiesKHX *props = NULL;
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// Query the number of device groups
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vkEnumeratePhysicalDeviceGroupsKHX(g_vkInstance, &deviceGroupCount, NULL);
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// Allocate and initialize structures to query the device groups
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props = (VkPhysicalDeviceGroupPropertiesKHX *)malloc(deviceGroupCount*sizeof(VkPhysicalDeviceGroupPropertiesKHX));
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for (i = 0; i < deviceGroupCount; ++i) {
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props[i].sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_GROUP_PROPERTIES_KHX;
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props[i].pNext = NULL;
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}
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vkEnumeratePhysicalDeviceGroupsKHX(g_vkInstance, &deviceGroupCount, props);
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// If the first device group has more than one physical device. create
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// a logical device using all of the physical devices.
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VkDeviceGroupDeviceCreateInfoKHX deviceGroupInfo = { VK_STRUCTURE_TYPE_DEVICE_GROUP_DEVICE_CREATE_INFO_KHX };
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if (props[0].physicalDeviceCount > 1) {
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deviceGroupInfo.physicalDeviceCount = props[0].physicalDeviceCount;
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deviceGroupInfo.pPhysicalDevices = props[0].physicalDevices;
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devCreateInfo.pNext = &deviceGroupInfo;
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}
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vkCreateDevice(props[0].physicalDevices[0], &devCreateInfo, NULL, &g_vkDevice);
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free(props);
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----------------------------------------
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=== Version History
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* Revision 1, 2016-10-19 (Jeff Bolz)
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- Internal revisions
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