PFNvkReallocate
PFNvkReallocate is a function-pointer type used in some Vulkan-like APIs to represent a memory or resource reallocation operation. It is not part of the official Vulkan specification; rather, it appears in certain extensions, sample implementations, or custom allocators to formalize the process of resizing an existing allocation or migrating to a new one.
In Vulkan naming conventions, PFN_ prefixes indicate a pointer-to-function type. The inclusion of vk suggests a
Typical usage patterns involve a function pointer of this type being provided by a memory allocator or
Practical considerations include how reallocation is performed (in-place versus new allocation), data migration logic, alignment constraints,