VkImportMemoryMetalHandleInfoEXT

To import memory from a Metal handle, add a VkImportMemoryMetalHandleInfoEXT structure to the pNext chain of the VkMemoryAllocateInfo structure.

The VkImportMemoryMetalHandleInfoEXT structure is defined as:

typedef struct VkImportMemoryMetalHandleInfoEXT {
    VkStructureType sType;
    const void* pNext;
    VkExternalMemoryHandleTypeFlagBits handleType;
    void* handle;
} VkImportMemoryMetalHandleInfoEXT;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• handleType is a VkExternalMemoryHandleTypeFlagBits value specifying the type of handle or name.
• handle is NULL or the external handle to import.

Importing memory object payloads from Metal handles shares the ownership of the handle to the Vulkan implementation.

Applications can import the same payload into multiple instances of Vulkan, into the same instance from which it was exported, and multiple times into a given Vulkan instance. In all cases, each import operation must create a distinct VkDeviceMemory object.