[janderwald] 42268: - Implement KsGetObjectFromFileObject, KsGetObjectFromFileObject, KsGetObjectTypeFromIrp, KsGetParent

Author: janderwald
Date: Tue Jul 28 15:52:57 2009
New Revision: 42268

URL: http://svn.reactos.org/svn/reactos?rev=42268&view=rev
Log:
- Implement KsGetObjectFromFileObject, KsGetObjectFromFileObject, KsGetObjectTypeFromIrp, KsGetParent

Modified:
    trunk/reactos/drivers/ksfilter/ks/api.c
    trunk/reactos/drivers/ksfilter/ks/device.c
    trunk/reactos/drivers/ksfilter/ks/filter.c
    trunk/reactos/drivers/ksfilter/ks/filterfactory.c
    trunk/reactos/drivers/ksfilter/ks/kstypes.h
    trunk/reactos/drivers/ksfilter/ks/misc.c

Modified: trunk/reactos/drivers/ksfilter/ks/api.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/api.c?r...
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/api.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/api.c [iso-8859-1] Tue Jul 28 15:52:57 2009
@@ -512,6 +512,11 @@

/* initialize create item list */
     InitializeListHead(&Header->ItemList);
+
+    /* initialize basic header */
+    Header->BasicHeader.Type = KsObjectTypeDevice;
+    Header->BasicHeader.KsDevice = &Header->KsDevice;
+    Header->BasicHeader.Parent.KsDevice = &Header->KsDevice;

/* are there any create items provided */
     if (ItemsCount && ItemsList)

Modified: trunk/reactos/drivers/ksfilter/ks/device.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/device....
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/device.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/device.c [iso-8859-1] Tue Jul 28 15:52:57 2009
@@ -653,7 +653,6 @@
     KsSetDevicePnpAndBaseObject(Header, PhysicalDeviceObject, NextDeviceObject);
     /* initialize IKsDevice interface */
     Header->lpVtblIKsDevice = &vt_IKsDevice;
-    Header->Type = KsObjectTypeDevice;
     Header->ref = 1;

/* FIXME Power state */

Modified: trunk/reactos/drivers/ksfilter/ks/filter.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/filter....
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/filter.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/filter.c [iso-8859-1] Tue Jul 28 15:52:57 2009
@@ -865,6 +865,7 @@
     This->FilterFactory = iface;
     This->FileObject = IoStack->FileObject;
     This->Header.KsDevice = &DeviceExtension->DeviceHeader->KsDevice;
+    This->Header.Parent.KsFilterFactory = iface->lpVtbl->GetStruct(iface);
     This->Header.Type = KsObjectTypeFilter;

/* allocate the stream descriptors */
@@ -919,6 +920,7 @@
     This->Header.KsDevice = &DeviceExtension->DeviceHeader->KsDevice;
     This->ObjectHeader->Type = KsObjectTypeFilter;
     This->ObjectHeader->Unknown = (PUNKNOWN)&This->lpVtbl;
+    This->ObjectHeader->ObjectType = (PVOID)&This->Filter;

/* completed initialization */

Modified: trunk/reactos/drivers/ksfilter/ks/filterfactory.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/filterf...
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/filterfactory.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/filterfactory.c [iso-8859-1] Tue Jul 28 15:52:57 2009
@@ -185,6 +185,7 @@
     This->FilterFactory.FilterDescriptor = Descriptor;
     This->Header.KsDevice = &DeviceExtension->DeviceHeader->KsDevice;
     This->Header.Type = KsObjectTypeFilterFactory;
+    This->Header.Parent.KsDevice = &DeviceExtension->DeviceHeader->KsDevice;
     This->DeviceHeader = DeviceExtension->DeviceHeader;

InitializeListHead(&This->SymbolicLinkList);

Modified: trunk/reactos/drivers/ksfilter/ks/kstypes.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/kstypes...
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/kstypes.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/kstypes.h [iso-8859-1] Tue Jul 28 15:52:57 2009
@@ -28,6 +28,7 @@

UNICODE_STRING ObjectClass;
     PUNKNOWN Unknown;
+    PVOID ObjectType;

PDEVICE_OBJECT TargetDevice;
     LIST_ENTRY TargetDeviceListEntry;
@@ -55,11 +56,17 @@
 {
     KSOBJECTTYPE Type;
     PKSDEVICE KsDevice;
+    union
+    {
+        PKSDEVICE KsDevice;
+        PKSFILTERFACTORY KsFilterFactory;
+        PKSFILTER KsFilter;
+    }Parent;
 }KSBASIC_HEADER, *PKSBASIC_HEADER;

typedef struct
 {
-    KSOBJECTTYPE Type;
+    KSBASIC_HEADER BasicHeader;
     KSDEVICE KsDevice;
     IKsDeviceVtbl *lpVtblIKsDevice;

Modified: trunk/reactos/drivers/ksfilter/ks/misc.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/misc.c?...
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/misc.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/misc.c [iso-8859-1] Tue Jul 28 15:52:57 2009
@@ -140,7 +140,7 @@
 }

/*
-    @unimplemented
+    @implemented
 */
 KSDDKAPI
 PVOID
@@ -148,50 +148,66 @@
 KsGetObjectFromFileObject(
     IN PFILE_OBJECT FileObject)
 {
+    PKSIOBJECT_HEADER ObjectHeader;
+
+    /* get object header */
+    ObjectHeader = (PKSIOBJECT_HEADER)FileObject->FsContext;
+
+    /* return associated object */
+    return ObjectHeader->ObjectType;
+}
+
+/*
+    @implemented
+*/
+KSDDKAPI
+KSOBJECTTYPE
+NTAPI
+KsGetObjectTypeFromFileObject(
+    IN PFILE_OBJECT FileObject)
+{
+    PKSIOBJECT_HEADER ObjectHeader;
+
+    /* get object header */
+    ObjectHeader = (PKSIOBJECT_HEADER)FileObject->FsContext;
+    /* return type */
+    return ObjectHeader->Type;
+}
+
+/*
+    @implemented
+*/
+KSOBJECTTYPE
+NTAPI
+KsGetObjectTypeFromIrp(
+    IN PIRP  Irp)
+{
+    PKSIOBJECT_HEADER ObjectHeader;
+    PIO_STACK_LOCATION IoStack;
+
+    /* get current irp stack */
+    IoStack = IoGetCurrentIrpStackLocation(Irp);
+    /* get object header */
+    ObjectHeader = (PKSIOBJECT_HEADER)IoStack->FileObject->FsContext;
+    /* return type */
+    return ObjectHeader->Type;
+}
+
+/*
+    @unimplemented
+*/
+PUNKNOWN
+NTAPI
+KsGetOuterUnknown(
+    IN PVOID  Object)
+{
     UNIMPLEMENTED
     return NULL;
-}
-
-/*
-    @unimplemented
-*/
-KSDDKAPI
-KSOBJECTTYPE
-NTAPI
-KsGetObjectTypeFromFileObject(
-    IN PFILE_OBJECT FileObject)
-{
-    UNIMPLEMENTED
-    return (KSOBJECTTYPE)-1;
-}
-
-/*
-    @unimplemented
-*/
-KSOBJECTTYPE
-NTAPI
-KsGetObjectTypeFromIrp(
-    IN PIRP  Irp)
-{
-    UNIMPLEMENTED
-    return (KSOBJECTTYPE)-1;
-}
-
-/*
-    @unimplemented
-*/
-PUNKNOWN
-NTAPI
-KsGetOuterUnknown(
-    IN PVOID  Object)
-{
-    UNIMPLEMENTED
-    return NULL;
-
-}
-
-/*
-    @unimplemented
+
+}
+
+/*
+    @implemented
 */
 KSDDKAPI
 PVOID
@@ -199,8 +215,11 @@
 KsGetParent(
     IN PVOID Object)
 {
-    UNIMPLEMENTED
-    return NULL;
-}
-
-
+    PKSBASIC_HEADER BasicHeader = (PKSBASIC_HEADER)((ULONG_PTR)Object - sizeof(KSBASIC_HEADER));
+    /* sanity check */
+    ASSERT(BasicHeader->Parent.KsDevice != NULL);
+    /* return object type */
+    return (PVOID)BasicHeader->Parent.KsDevice;
+}
+
+