C Specification

The VkSemaphoreTypeCreateInfo structure is defined as:

// Provided by VK_VERSION_1_2
typedef struct VkSemaphoreTypeCreateInfo {
    VkStructureType    sType;
    const void*        pNext;
    VkSemaphoreType    semaphoreType;
    uint64_t           initialValue;
} VkSemaphoreTypeCreateInfo;

Members

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • semaphoreType is a VkSemaphoreType value specifying the type of the semaphore.

  • initialValue is the initial payload value if semaphoreType is VK_SEMAPHORE_TYPE_TIMELINE.

Description

To create a semaphore of a specific type, add a VkSemaphoreTypeCreateInfo structure to the VkSemaphoreCreateInfo::pNext chain.

If no VkSemaphoreTypeCreateInfo structure is included in the pNext chain of VkSemaphoreCreateInfo, then the created semaphore will have a default VkSemaphoreType of VK_SEMAPHORE_TYPE_BINARY.

If VkSemaphoreSciSyncCreateInfoNV structure is included in the pNext chain of VkSemaphoreTypeCreateInfo, initialValue is ignored.

Valid Usage

  • VUID-VkSemaphoreTypeCreateInfo-timelineSemaphore-03252
    If the timelineSemaphore feature is not enabled, semaphoreType must not equal VK_SEMAPHORE_TYPE_TIMELINE

  • VUID-VkSemaphoreTypeCreateInfo-semaphoreType-03279
    If semaphoreType is VK_SEMAPHORE_TYPE_BINARY, initialValue must be zero

  • VUID-VkSemaphoreTypeCreateInfo-pNext-05119
    If the pNext chain includes VkExportSemaphoreSciSyncInfoNV, initialValue must be zero.

Valid Usage (Implicit)

  • VUID-VkSemaphoreTypeCreateInfo-sType-sType
    sType must be VK_STRUCTURE_TYPE_SEMAPHORE_TYPE_CREATE_INFO

  • VUID-VkSemaphoreTypeCreateInfo-semaphoreType-parameter
    semaphoreType must be a valid VkSemaphoreType value

See Also

VK_VERSION_1_2, VkSemaphoreType, VkStructureType

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.

Copyright

Copyright 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0