C Specification

To import memory created outside of the current Vulkan instance from an Android hardware buffer, add a VkImportAndroidHardwareBufferInfoANDROID structure to the pNext chain of the VkMemoryAllocateInfo structure. The VkImportAndroidHardwareBufferInfoANDROID structure is defined as:

// Provided by VK_ANDROID_external_memory_android_hardware_buffer
typedef struct VkImportAndroidHardwareBufferInfoANDROID {
    VkStructureType            sType;
    const void*                pNext;
    struct AHardwareBuffer*    buffer;
} VkImportAndroidHardwareBufferInfoANDROID;


  • sType is a VkStructureType value identifying this structure.

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

  • buffer is the Android hardware buffer to import.


If the vkAllocateMemory command succeeds, the implementation must acquire a reference to the imported hardware buffer, which it must release when the device memory object is freed. If the command fails, the implementation must not retain a reference.

Valid Usage
  • VUID-VkImportAndroidHardwareBufferInfoANDROID-buffer-01880
    If buffer is not NULL, Android hardware buffers must be supported for import, as reported by VkExternalImageFormatProperties or VkExternalBufferProperties

  • VUID-VkImportAndroidHardwareBufferInfoANDROID-buffer-01881
    If buffer is not NULL, it must be a valid Android hardware buffer object with AHardwareBuffer_Desc::usage compatible with Vulkan as described in Android Hardware Buffers

Valid Usage (Implicit)
  • VUID-VkImportAndroidHardwareBufferInfoANDROID-sType-sType

  • VUID-VkImportAndroidHardwareBufferInfoANDROID-buffer-parameter
    buffer must be a valid pointer to an AHardwareBuffer value

See Also

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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0