PFN_vkInternalAllocationNotification

The type of pfnInternalAllocation is:

typedef void (VKAPI_PTR *PFN_vkInternalAllocationNotification)(void*                       pUserData, size_t                      size, VkInternalAllocationType    allocationType, VkSystemAllocationScope     allocationScope);

pub type PFN_vkInternalAllocationNotification = Option<
    unsafe extern "system" fn(

    ) -> std::ffi::c_void
>;

• pUserData is the value specified for VkAllocationCallbacks::pUserData in the allocator specified by the application.
• size is the requested size of an allocation.
• allocationType is a VkInternalAllocationType value specifying the requested type of an allocation.
• allocationScope is a VkSystemAllocationScope value specifying the allocation scope of the lifetime of the allocation, as described here.

This is a purely informational callback.