vulkan- Bindings to the Vulkan graphics API.
Safe HaskellNone




type PFN_vkInternalAllocationNotification = FunPtr FN_vkInternalAllocationNotification Source #

PFN_vkInternalAllocationNotification - Application-defined memory allocation notification function


This is a purely informational callback.

See Also


type PFN_vkInternalFreeNotification = FunPtr FN_vkInternalFreeNotification Source #

PFN_vkInternalFreeNotification - Application-defined memory free notification function

See Also


type PFN_vkReallocationFunction = FunPtr FN_vkReallocationFunction Source #

PFN_vkReallocationFunction - Application-defined memory reallocation function


pfnReallocation must return an allocation with enough space for size bytes, and the contents of the original allocation from bytes zero to min(original size, new size) - 1 must be preserved in the returned allocation. If size is larger than the old size, the contents of the additional space are undefined. If satisfying these requirements involves creating a new allocation, then the old allocation should be freed.

If pOriginal is NULL, then pfnReallocation must behave equivalently to a call to PFN_vkAllocationFunction with the same parameter values (without pOriginal).

If size is zero, then pfnReallocation must behave equivalently to a call to PFN_vkFreeFunction with the same pUserData parameter value, and pMemory equal to pOriginal.

If pOriginal is non-NULL, the implementation must ensure that alignment is equal to the alignment used to originally allocate pOriginal.

If this function fails and pOriginal is non-NULL the application must not free the old allocation.

pfnReallocation must follow the same rules for return values as.

See Also


type FN_vkReallocationFunction = ("pUserData" ::: Ptr ()) -> ("pOriginal" ::: Ptr ()) -> CSize -> ("alignment" ::: CSize) -> SystemAllocationScope -> IO (Ptr ()) Source #

type PFN_vkAllocationFunction = FunPtr FN_vkAllocationFunction Source #

PFN_vkAllocationFunction - Application-defined memory allocation function


If pfnAllocation is unable to allocate the requested memory, it must return NULL. If the allocation was successful, it must return a valid pointer to memory allocation containing at least size bytes, and with the pointer value being a multiple of alignment.


Correct Vulkan operation cannot be assumed if the application does not follow these rules.

For example, pfnAllocation (or pfnReallocation) could cause termination of running Vulkan instance(s) on a failed allocation for debugging purposes, either directly or indirectly. In these circumstances, it cannot be assumed that any part of any affected Instance objects are going to operate correctly (even destroyInstance), and the application must ensure it cleans up properly via other means (e.g. process termination).

If pfnAllocation returns NULL, and if the implementation is unable to continue correct processing of the current command without the requested allocation, it must treat this as a runtime error, and generate ERROR_OUT_OF_HOST_MEMORY at the appropriate time for the command in which the condition was detected, as described in Return Codes.

If the implementation is able to continue correct processing of the current command without the requested allocation, then it may do so, and must not generate ERROR_OUT_OF_HOST_MEMORY as a result of this failed allocation.

See Also


type FN_vkAllocationFunction = ("pUserData" ::: Ptr ()) -> CSize -> ("alignment" ::: CSize) -> SystemAllocationScope -> IO (Ptr ()) Source #

type PFN_vkFreeFunction = FunPtr FN_vkFreeFunction Source #

PFN_vkFreeFunction - Application-defined memory free function


pMemory may be NULL, which the callback must handle safely. If pMemory is non-NULL, it must be a pointer previously allocated by pfnAllocation or pfnReallocation. The application should free this memory.

See Also


type FN_vkFreeFunction = ("pUserData" ::: Ptr ()) -> ("pMemory" ::: Ptr ()) -> IO () Source #

type PFN_vkVoidFunction = FunPtr FN_vkVoidFunction Source #

PFN_vkVoidFunction - Placeholder function pointer type returned by queries

See Also

getDeviceProcAddr, getInstanceProcAddr

type FN_vkVoidFunction = () -> IO () Source #