C Specification

To enumerate device layers, call:

// Provided by VK_VERSION_1_0
VkResult vkEnumerateDeviceLayerProperties(
    VkPhysicalDevice                            physicalDevice,
    uint32_t*                                   pPropertyCount,
    VkLayerProperties*                          pProperties);

Parameters

  • physicalDevice is the physical device that will be queried.

  • pPropertyCount is a pointer to an integer related to the number of layer properties available or queried.

  • pProperties is either NULL or a pointer to an array of VkLayerProperties structures.

Description

If pProperties is NULL, then the number of layer properties available is returned in pPropertyCount. Otherwise, pPropertyCount must point to a variable set by the application to the number of elements in the pProperties array, and on return the variable is overwritten with the number of structures actually written to pProperties. If pPropertyCount is less than the number of layer properties available, at most pPropertyCount structures will be written, and VK_INCOMPLETE will be returned instead of VK_SUCCESS, to indicate that not all the available properties were returned.

The list of layers enumerated by vkEnumerateDeviceLayerProperties must be exactly the sequence of layers enabled for the instance. The members of VkLayerProperties for each enumerated layer must be the same as the properties when the layer was enumerated by vkEnumerateInstanceLayerProperties.

Note

Due to platform details on Android, vkEnumerateDeviceLayerProperties may be called with physicalDevice equal to NULL during layer discovery. This behavior will only be observed by layer implementations, and not the underlying Vulkan driver.
Valid Usage (Implicit)

  • VUID-vkEnumerateDeviceLayerProperties-physicalDevice-parameter
    physicalDevice must be a valid VkPhysicalDevice handle

  • VUID-vkEnumerateDeviceLayerProperties-pPropertyCount-parameter
    pPropertyCount must be a valid pointer to a uint32_t value

  • VUID-vkEnumerateDeviceLayerProperties-pProperties-parameter
    If the value referenced by pPropertyCount is not 0, and pProperties is not NULL, pProperties must be a valid pointer to an array of pPropertyCount VkLayerProperties structures

Return Codes
On success, this command returns

  • VK_SUCCESS

  • VK_INCOMPLETE

On failure, this command returns

  • VK_ERROR_OUT_OF_HOST_MEMORY

  • VK_ERROR_OUT_OF_DEVICE_MEMORY

See Also

VK_VERSION_1_0, VkLayerProperties, VkPhysicalDevice

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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0

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