C Specification
The VkPhysicalDeviceExternalSciSyncFeaturesNV
structure is defined as:
// Provided by VK_NV_external_sci_sync
typedef struct VkPhysicalDeviceExternalSciSyncFeaturesNV {
VkStructureType sType;
void* pNext;
VkBool32 sciSyncFence;
VkBool32 sciSyncSemaphore;
VkBool32 sciSyncImport;
VkBool32 sciSyncExport;
} VkPhysicalDeviceExternalSciSyncFeaturesNV;
Members
The members of the VkPhysicalDeviceExternalSciSyncFeaturesNV
structure
describe the following features:
Description
-
sciSyncFence
indicates whether external fences created with a handle type ofVK_EXTERNAL_FENCE_HANDLE_TYPE_SCI_SYNC_OBJ_BIT_NV
andVK_EXTERNAL_FENCE_HANDLE_TYPE_SCI_SYNC_FENCE_BIT_NV
are supported for import and/or export. -
sciSyncSemaphore
indicates whether external semaphores created with a handle type ofVK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_SCI_SYNC_OBJ_BIT_NV
are supported for import and/or export. -
sciSyncImport
indicates whetherNvSciSyncObj
import functionality is supported. IfsciSyncImport
is set toVK_TRUE
, VkFence and/or VkSemaphore support importingNvSciSyncObj
from applications. In this case, the application is responsible for the resource management of theNvSciSyncObj
. -
sciSyncExport
indicates whetherNvSciSyncObj
export functionality is supported. IfsciSyncExport
is set toVK_TRUE
, VkFence and/or VkSemaphore support exportingNvSciSyncObj
created by the driver to applications. In this case, the driver is responsible for the resource management of theNvSciSyncObj
.
Features |
|
|
Always supported1 |
|
vkGetFenceSciSyncFenceNV, vkGetFenceSciSyncObjNV, vkGetPhysicalDeviceSciSyncAttributesNV (with |
||
|
vkGetSemaphoreSciSyncObjNV, vkGetPhysicalDeviceSciSyncAttributesNV (with |
- 1
-
Functionality in this column is always available.
The Functionality supported for NvSciSync
features table summarizes the functionality enabled by the
VkPhysicalDeviceExternalSciSyncFeaturesNV
structure.
There are two orthogonal pieces of functionality: fence and semaphore
support; import and export support.
Each entry in the body of the table summarizes the functionality that can
be used when the given features are supported and enabled.
This summarizes Valid Usage statements that are added elsewhere in this
specification.
If the VkPhysicalDeviceExternalSciSyncFeaturesNV
structure is included in the pNext
chain of the
VkPhysicalDeviceFeatures2 structure passed to
vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each
corresponding feature is supported.
VkPhysicalDeviceExternalSciSyncFeaturesNV
can also be used in the pNext
chain of
VkDeviceCreateInfo to selectively enable these features.
Document Notes
For more information, see the Vulkan Specification
This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.