IKsControlVtbl *lpVtblKsControl;
IKsFilterFactory * FilterFactory;
+ IKsProcessingObjectVtbl * lpVtblKsProcessingObject;
LONG ref;
PKSIOBJECT_HEADER ObjectHeader;
KMUTEX ControlMutex;
KMUTEX ProcessingMutex;
+ PKSWORKER Worker;
+ WORK_QUEUE_ITEM WorkItem;
+ KSGATE Gate;
PFNKSFILTERPOWER Sleep;
PFNKSFILTERPOWER Wake;
}
};
+NTSTATUS
+NTAPI
+IKsProcessingObject_fnQueryInterface(
+ IKsProcessingObject * iface,
+ IN REFIID refiid,
+ OUT PVOID* Output)
+{
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(iface, IKsFilterImpl, lpVtblKsProcessingObject);
+
+ if (IsEqualGUIDAligned(refiid, &IID_IUnknown))
+ {
+ *Output = &This->Header.OuterUnknown;
+ _InterlockedIncrement(&This->ref);
+ return STATUS_SUCCESS;
+ }
+ return STATUS_UNSUCCESSFUL;
+}
+
+ULONG
+NTAPI
+IKsProcessingObject_fnAddRef(
+ IKsProcessingObject * iface)
+{
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(iface, IKsFilterImpl, lpVtblKsProcessingObject);
+
+ return InterlockedIncrement(&This->ref);
+}
+
+ULONG
+NTAPI
+IKsProcessingObject_fnRelease(
+ IKsProcessingObject * iface)
+{
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(iface, IKsFilterImpl, lpVtblKsProcessingObject);
+
+ InterlockedDecrement(&This->ref);
+
+ /* Return new reference count */
+ return This->ref;
+}
+
+VOID
+NTAPI
+IKsProcessingObject_fnProcessingObjectWork(
+ IKsProcessingObject * iface)
+{
+ NTSTATUS Status;
+ LARGE_INTEGER TimeOut;
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(iface, IKsFilterImpl, lpVtblKsProcessingObject);
+
+ DPRINT1("processing object\n");
+ /* first check if running at passive level */
+ if (KeGetCurrentIrql() == PASSIVE_LEVEL)
+ {
+ /* acquire processing mutex */
+ KeWaitForSingleObject(&This->ControlMutex, Executive, KernelMode, FALSE, NULL);
+ }
+ else
+ {
+ /* dispatch level processing */
+ if (KeReadStateMutex(&This->ControlMutex) == 0)
+ {
+ /* some thread was faster */
+ DPRINT1("processing object too slow\n");
+ return;
+ }
+
+ /* acquire processing mutex */
+ TimeOut.QuadPart = 0LL;
+ Status = KeWaitForSingleObject(&This->ControlMutex, Executive, KernelMode, FALSE, &TimeOut);
+
+ if (Status == STATUS_TIMEOUT)
+ {
+ /* some thread was faster */
+ DPRINT1("processing object too slow\n");
+ return;
+ }
+ }
+
+ do
+ {
+
+ /* check if the and-gate has been enabled again */
+ if (&This->Gate.Count != 0)
+ {
+ /* gate is open */
+DPRINT1("processing object gate open\n");
+ break;
+ }
+
+ DPRINT1("IKsProcessingObject_fnProcessingObjectWork not implemented\n");
+ ASSERT(0);
+
+ }while(TRUE);
+
+ /* release process mutex */
+ KeReleaseMutex(&This->ProcessingMutex, FALSE);
+}
+
+PKSGATE
+NTAPI
+IKsProcessingObject_fnGetAndGate(
+ IKsProcessingObject * iface)
+{
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(iface, IKsFilterImpl, lpVtblKsProcessingObject);
+
+ /* return and gate */
+ return &This->Gate;
+}
+
+VOID
+NTAPI
+IKsProcessingObject_fnProcess(
+ IKsProcessingObject * iface,
+ IN BOOLEAN Asynchronous)
+{
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(iface, IKsFilterImpl, lpVtblKsProcessingObject);
+
+ /* should the action be asynchronous */
+ if (Asynchronous)
+ {
+ /* queue work item */
+ KsQueueWorkItem(This->Worker, &This->WorkItem);
+DPRINT1("queueing\n");
+ /* done */
+ return;
+ }
+
+ /* does the filter require explicit deferred processing */
+ if ((This->Filter.Descriptor->Flags & (KSFILTER_FLAG_DISPATCH_LEVEL_PROCESSING | KSFILTER_FLAG_CRITICAL_PROCESSING | KSFILTER_FLAG_HYPERCRITICAL_PROCESSING)) &&
+ KeGetCurrentIrql() > PASSIVE_LEVEL)
+ {
+ /* queue work item */
+ KsQueueWorkItem(This->Worker, &This->WorkItem);
+DPRINT1("queueing\n");
+ /* done */
+ return;
+ }
+DPRINT1("invoke\n");
+ /* call worker routine directly */
+ iface->lpVtbl->ProcessingObjectWork(iface);
+}
+
+VOID
+NTAPI
+IKsProcessingObject_fnReset(
+ IKsProcessingObject * iface)
+{
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(iface, IKsFilterImpl, lpVtblKsProcessingObject);
+
+ /* acquire processing mutex */
+ KeWaitForSingleObject(&This->ProcessingMutex, Executive, KernelMode, FALSE, NULL);
+
+ /* check if the filter supports dispatch routines */
+ if (This->Filter.Descriptor->Dispatch)
+ {
+ /* has the filter a reset routine */
+ if (This->Filter.Descriptor->Dispatch->Reset)
+ {
+ /* reset filter */
+ This->Filter.Descriptor->Dispatch->Reset(&This->Filter);
+ }
+ }
+
+ /* release process mutex */
+ KeReleaseMutex(&This->ProcessingMutex, FALSE);
+}
+
+VOID
+NTAPI
+IKsProcessingObject_fnTriggerNotification(
+ IKsProcessingObject * iface)
+{
+
+}
+
+static IKsProcessingObjectVtbl vt_IKsProcessingObject =
+{
+ IKsProcessingObject_fnQueryInterface,
+ IKsProcessingObject_fnAddRef,
+ IKsProcessingObject_fnRelease,
+ IKsProcessingObject_fnProcessingObjectWork,
+ IKsProcessingObject_fnGetAndGate,
+ IKsProcessingObject_fnProcess,
+ IKsProcessingObject_fnReset,
+ IKsProcessingObject_fnTriggerNotification
+};
+
+
+//---------------------------------------------------------------------------------------------------------
NTSTATUS
NTAPI
IKsControl_fnQueryInterface(
Irp->IoStatus.Status = Status;
/* complete and forget irp */
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ CompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
return Status;
/* save the result */
Irp->IoStatus.Status = Status;
/* complete irp */
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ CompleteRequest(Irp, IO_NO_INCREMENT);
/* remove our instance from the filter factory */
IKsFilter_RemoveFilterFromFilterFactory(This, This->Factory);
/* complete and forget */
Irp->IoStatus.Status = Status;
/* complete irp */
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ CompleteRequest(Irp, IO_NO_INCREMENT);
}
/* done */
if (Status != STATUS_PENDING)
{
Irp->IoStatus.Status = Status;
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ CompleteRequest(Irp, IO_NO_INCREMENT);
}
/* done */
{
/* complete request */
Irp->IoStatus.Status = Status;
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ CompleteRequest(Irp, IO_NO_INCREMENT);
}
/* done */
{
UNIMPLEMENTED
Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ CompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_UNSUCCESSFUL;
}
}while(TRUE);
}
+VOID
+NTAPI
+IKsFilter_FilterCentricWorker(
+ IN PVOID Ctx)
+{
+ IKsProcessingObject * Object = (IKsProcessingObject*)Ctx;
+
+ /* sanity check */
+ ASSERT(Object);
+
+ /* perform work */
+ Object->lpVtbl->ProcessingObjectWork(Object);
+}
+
NTSTATUS
NTAPI
KspCreateFilter(
/* get the filter factory */
Factory = iface->lpVtbl->GetStruct(iface);
- if (!Factory || !Factory->FilterDescriptor || !Factory->FilterDescriptor->Dispatch || !Factory->FilterDescriptor->Dispatch->Create)
+ if (!Factory || !Factory->FilterDescriptor)
{
/* Sorry it just will not work */
return STATUS_UNSUCCESSFUL;
}
+ if (Factory->FilterDescriptor->Flags & KSFILTER_FLAG_DENY_USERMODE_ACCESS)
+ {
+ if (Irp->RequestorMode == UserMode)
+ {
+ /* filter not accessible from user mode */
+ DPRINT1("Access denied\n");
+ return STATUS_UNSUCCESSFUL;
+ }
+ }
+
/* allocate filter instance */
This = AllocateItem(NonPagedPool, sizeof(IKsFilterImpl));
if (!This)
{
- DPRINT("KspCreateFilter OutOfMemory\n");
+ DPRINT1("KspCreateFilter OutOfMemory\n");
return STATUS_INSUFFICIENT_RESOURCES;
}
{
/* no memory */
FreeItem(This);
- DPRINT("KspCreateFilter OutOfMemory\n");
+ DPRINT1("KspCreateFilter OutOfMemory\n");
return STATUS_INSUFFICIENT_RESOURCES;
}
KsDevice = (IKsDevice*)&DeviceExtension->DeviceHeader->BasicHeader.OuterUnknown;
/* no memory */
FreeItem(This->Filter.Bag);
FreeItem(This);
- DPRINT("KspCreateFilter OutOfMemory\n");
+ DPRINT1("KspCreateFilter OutOfMemory\n");
return STATUS_INSUFFICIENT_RESOURCES;
}
- DPRINT("KspCreateFilter Flags %lx\n", Factory->FilterDescriptor->Flags);
-
/* initialize pin create item */
CreateItem[0].Create = IKsFilter_DispatchCreatePin;
CreateItem[0].Context = (PVOID)This;
This->ref = 1;
This->Header.OuterUnknown = (PUNKNOWN)&vt_IKsFilter;
This->lpVtblKsControl = &vt_IKsControl;
+ This->lpVtblKsProcessingObject = &vt_IKsProcessingObject;
This->Factory = Factory;
This->FilterFactory = iface;
This->FileObject = IoStack->FileObject;
KeInitializeMutex(&This->ProcessingMutex, 0);
+
/* initialize basic header */
This->Header.KsDevice = &DeviceExtension->DeviceHeader->KsDevice;
This->Header.Parent.KsFilterFactory = iface->lpVtbl->GetStruct(iface);
InitializeListHead(&This->Header.EventList);
KeInitializeSpinLock(&This->Header.EventListLock);
+ /* initialize and gate */
+ KsGateInitializeAnd(&This->Gate, NULL);
+
+ /* FIXME initialize and gate based on pin flags */
+
+ /* initialize work item */
+ ExInitializeWorkItem(&This->WorkItem, IKsFilter_FilterCentricWorker, (PVOID)This->lpVtblKsProcessingObject);
+
+ /* allocate counted work item */
+ Status = KsRegisterCountedWorker(HyperCriticalWorkQueue, &This->WorkItem, &This->Worker);
+ if (!NT_SUCCESS(Status))
+ {
+ /* what can go wrong, goes wrong */
+ DPRINT1("KsRegisterCountedWorker failed with %lx\n", Status);
+ FreeItem(This);
+ FreeItem(CreateItem);
+ return Status;
+ }
+
/* allocate the stream descriptors */
Status = IKsFilter_CreateDescriptors(This, (PKSFILTER_DESCRIPTOR)Factory->FilterDescriptor);
if (!NT_SUCCESS(Status))
{
/* what can go wrong, goes wrong */
+ DPRINT1("IKsFilter_CreateDescriptors failed with %lx\n", Status);
+ KsUnregisterWorker(This->Worker);
FreeItem(This);
FreeItem(CreateItem);
- DPRINT("IKsFilter_CreateDescriptors failed with %lx\n", Status);
return Status;
}
+
+
/* does the filter have a filter dispatch */
if (Factory->FilterDescriptor->Dispatch)
{
DPRINT1("Driver: Status %x\n", Status);
/* free filter instance */
+ KsUnregisterWorker(This->Worker);
FreeItem(This);
FreeItem(CreateItem);
return Status;
IKsFilter_AttachFilterToFilterFactory(This, This->Header.Parent.KsFilterFactory);
/* completed initialization */
- DPRINT("KspCreateFilter done %lx KsDevice %p\n", Status, This->Header.KsDevice);
+ DPRINT1("KspCreateFilter done %lx KsDevice %p\n", Status, This->Header.KsDevice);
return Status;
}
}
/*
- @unimplemented
+ @implemented
*/
KSDDKAPI
VOID
IN PKSFILTER Filter,
IN BOOLEAN Asynchronous)
{
- UNIMPLEMENTED
+ PKSGATE Gate;
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(Filter, IKsFilterImpl, Filter);
+
+ /* get gate */
+ Gate = This->lpVtblKsProcessingObject->GetAndGate((IKsProcessingObject*)This->lpVtblKsProcessingObject);
+
+ if (!KsGateCaptureThreshold(Gate))
+ {
+ /* filter control gate is closed */
+ DPRINT1("Gate %p Closed %x\n", Gate, Gate->Count);
+ return;
+ }
+DPRINT1("processing\n");
+ /* try initiate processing */
+ This->lpVtblKsProcessingObject->Process((IKsProcessingObject*)This->lpVtblKsProcessingObject, Asynchronous);
}
/*
KsFilterGetAndGate(
IN PKSFILTER Filter)
{
- UNIMPLEMENTED
- return NULL;
+ IKsFilterImpl * This = (IKsFilterImpl*)CONTAINING_RECORD(Filter, IKsFilterImpl, Filter);
+
+ /* return and-gate */
+ return &This->Gate;
}
/*
projects / reactos.git / blobdiff