## C Specification

If the pNext chain includes a VkDedicatedAllocationMemoryAllocateInfoNV structure, then that structure includes a handle of the sole buffer or image resource that the memory can be bound to.

The VkDedicatedAllocationMemoryAllocateInfoNV structure is defined as:

// Provided by VK_NV_dedicated_allocation
typedef struct VkDedicatedAllocationMemoryAllocateInfoNV {
VkStructureType    sType;
const void*        pNext;
VkImage            image;
VkBuffer           buffer;
} VkDedicatedAllocationMemoryAllocateInfoNV;

## Members

• sType is the type of this structure.

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

• image is VK_NULL_HANDLE or a handle of an image which this memory will be bound to.

• buffer is VK_NULL_HANDLE or a handle of a buffer which this memory will be bound to.

## Description

Valid Usage
• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-image-00649
At least one of image and buffer must be VK_NULL_HANDLE

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-image-00650
If image is not VK_NULL_HANDLE, the image must have been created with VkDedicatedAllocationImageCreateInfoNV::dedicatedAllocation equal to VK_TRUE

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-buffer-00651
If buffer is not VK_NULL_HANDLE, the buffer must have been created with VkDedicatedAllocationBufferCreateInfoNV::dedicatedAllocation equal to VK_TRUE

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-image-00652
If image is not VK_NULL_HANDLE, VkMemoryAllocateInfo::allocationSize must equal the VkMemoryRequirements::size of the image

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-buffer-00653
If buffer is not VK_NULL_HANDLE, VkMemoryAllocateInfo::allocationSize must equal the VkMemoryRequirements::size of the buffer

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-image-00654
If image is not VK_NULL_HANDLE and VkMemoryAllocateInfo defines a memory import operation, the memory being imported must also be a dedicated image allocation and image must be identical to the image associated with the imported memory

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-buffer-00655
If buffer is not VK_NULL_HANDLE and VkMemoryAllocateInfo defines a memory import operation, the memory being imported must also be a dedicated buffer allocation and buffer must be identical to the buffer associated with the imported memory

Valid Usage (Implicit)
• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-sType-sType
sType must be VK_STRUCTURE_TYPE_DEDICATED_ALLOCATION_MEMORY_ALLOCATE_INFO_NV

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-image-parameter
If image is not VK_NULL_HANDLE, image must be a valid VkImage handle

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-buffer-parameter
If buffer is not VK_NULL_HANDLE, buffer must be a valid VkBuffer handle

• VUID-VkDedicatedAllocationMemoryAllocateInfoNV-commonparent
Both of buffer, and image that are valid handles of non-ignored parameters must have been created, allocated, or retrieved from the same VkDevice