[KSUSER, KS, SYSAUDIO]

- Make pin / node / allocator create requests compatible to ms by removing obsolete slash before object class
- Return correct error code in ksuser's KsCreatePin
- ReactOS KS is now able to create audio pins in Windows XP, though playback is not yet working
- All changes except ksuser change has been verified to work with VBox 3.2.10
- KS user changes not tested yet as KSStudio not working in trunk

svn path=/trunk/; revision=49428

reactos/dll/directx/ksuser/ksuser.c

@@ -1,34 +1,19 @@
 /*
- * KSUSER.DLL - ReactOS 
- *
- * Copyright 2008 Magnus Olsen and Dmitry Chapyshev
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ * COPYRIGHT:       See COPYING in the top level directory
+ * PROJECT:         ReactOS Kernel Streaming
+ * FILE:            dll/directx/ksuser/ksuser.c
+ * PURPOSE:         KS USER functions
+ * PROGRAMMER:      Magnus Olsen and Dmitry Chapyshev and Johannes Anderwald
  */
 
-
 #include "ksuser.h"
 #define NDEBUG
 #include <debug.h>
 
-NTSTATUS NTAPI  KsiCreateObjectType( HANDLE hHandle, PVOID guidstr, PVOID Buffer, ULONG BufferSize, ACCESS_MASK DesiredAccess, PHANDLE phHandle);
-
 NTSTATUS
 NTAPI
 KsiCreateObjectType( HANDLE hHandle,
-                     PVOID IID,
+                     LPWSTR ObjectType,
                      PVOID Buffer,
                      ULONG BufferSize,
                      ACCESS_MASK DesiredAccess,
@@ -42,31 +27,56 @@ KsiCreateObjectType( HANDLE hHandle,
     OBJECT_ATTRIBUTES ObjectAttributes;
     IO_STATUS_BLOCK IoStatusBlock;
 
-    Length = wcslen(IID);
+    /* get length of object type */
+    Length = wcslen(ObjectType);
 
-    TotalSize = (Length * sizeof(WCHAR)) + BufferSize + 4 * sizeof(WCHAR);
+    /* get length for request */
+    TotalSize = (Length * sizeof(WCHAR)) + BufferSize;
 
+    /* append space for '\\'*/
+    TotalSize += sizeof(WCHAR);
+
+    /* allocate buffer */
     pStr = HeapAlloc(GetProcessHeap(), 0, TotalSize);
     if (!pStr)
-        return STATUS_INSUFFICIENT_RESOURCES;
-    pStr[0] = L'\\';
-    wcscpy(&pStr[1], (LPWSTR)IID);
-    pStr[Length+1] = L'\\';
-    memcpy(&pStr[Length+2], Buffer, BufferSize);
-    pStr[Length+3+(BufferSize/sizeof(WCHAR))] = L'\0';
+    {
+        /* out of memory */
+        return ERROR_NOT_ENOUGH_MEMORY;
+    }
 
-    RtlInitUnicodeString(&ObjectName, pStr);
+    /* copy object type */
+    wcscpy(pStr, ObjectType);
+
+    /* append slash */
+    pStr[Length] = L'\\';
+
+    /* append parameters */
+    memcpy(&pStr[Length+1], Buffer, BufferSize);
+
+    /* initialize object name */
+    ObjectName.Buffer = pStr;
     ObjectName.Length = ObjectName.MaximumLength = TotalSize;
 
+    /* initialize object attributes */
     InitializeObjectAttributes(&ObjectAttributes, &ObjectName, OBJ_CASE_INSENSITIVE, hHandle, NULL);
 
+    /* create the object */
     Status = NtCreateFile(phHandle, DesiredAccess, &ObjectAttributes, &IoStatusBlock, NULL, FILE_ATTRIBUTE_NORMAL, 0, 1, 0, NULL, 0);
+
+    /* free buffer */
     HeapFree(GetProcessHeap(), 0, pStr);
+
+    /* check for success */
     if (!NT_SUCCESS(Status))
     {
+        /* failed zero handle */
         *phHandle = INVALID_HANDLE_VALUE;
+
+        /* convert error code */
         Status = RtlNtStatusToDosError(Status);
     }
+
+    /* done */
     return Status;
 }
 

reactos/drivers/ksfilter/ks/irp.c

@@ -1739,22 +1739,24 @@ FindMatchingCreateItem(
     PLIST_ENTRY Entry;
     PCREATE_ITEM_ENTRY CreateItemEntry;
     UNICODE_STRING RefString;
+    LPWSTR pStr;
 
+    /* get terminator */
+    pStr = wcschr(Buffer, L'\\');
 
-#ifndef MS_KSUSER
-    /* remove '\' slash */
-    Buffer++;
-    BufferSize -= sizeof(WCHAR);
-#endif
+    /* sanity check */
+    ASSERT(pStr != NULL);
 
-    if (!wcschr(Buffer, L'\\'))
+    if (pStr == Buffer)
     {
-        RtlInitUnicodeString(&RefString, Buffer);
+        // skip slash
+        RtlInitUnicodeString(&RefString, ++pStr);
     }
     else
     {
+        // request is for pin / node / allocator
         RefString.Buffer = Buffer;
-        RefString.Length = RefString.MaximumLength = ((ULONG_PTR)wcschr(Buffer, L'\\') - (ULONG_PTR)Buffer);
+        RefString.Length = BufferSize = RefString.MaximumLength = ((ULONG_PTR)pStr - (ULONG_PTR)Buffer);
     }
 
     /* point to first entry */

reactos/drivers/ksfilter/ks/misc.c

@@ -95,7 +95,7 @@ KspCopyCreateRequest(
     IoStack = IoGetCurrentIrpStackLocation(Irp);
 
     /* get object class length */
-    ObjectLength = (wcslen(ObjectClass) + 2) * sizeof(WCHAR);
+    ObjectLength = (wcslen(ObjectClass) + 1) * sizeof(WCHAR);
 
     /* check for minium length requirement */
     if (ObjectLength  + *Size > IoStack->FileObject->FileName.MaximumLength)

reactos/drivers/ksfilter/ks/topology.c

@@ -27,7 +27,7 @@ KspCreateObjectType(
 
     /* calculate request length */
     Name.Length = 0;
-    Name.MaximumLength = wcslen(ObjectType) * sizeof(WCHAR) + CreateParametersSize +  2 * sizeof(WCHAR);
+    Name.MaximumLength = wcslen(ObjectType) * sizeof(WCHAR) + CreateParametersSize +  1 * sizeof(WCHAR);
     Name.MaximumLength += sizeof(WCHAR);
     /* acquire request buffer */
     Name.Buffer = AllocateItem(NonPagedPool, Name.MaximumLength);
@@ -42,7 +42,6 @@ KspCreateObjectType(
      * For pins the parent is the reference string used in registration
      * For clocks it is full path for pin\{ClockGuid}\ClockCreateParams
      */
-    RtlAppendUnicodeToString(&Name, L"\\");
     RtlAppendUnicodeToString(&Name, ObjectType);
     RtlAppendUnicodeToString(&Name, L"\\");
     /* append create parameters */

reactos/drivers/wdm/audio/sysaudio/pin.c

@@ -398,7 +398,7 @@ GetConnectRequest(
     IoStack = IoGetCurrentIrpStackLocation(Irp);
 
     /* get object class length */
-    ObjectLength = (wcslen(KSSTRING_Pin) + 2) * sizeof(WCHAR);
+    ObjectLength = (wcslen(KSSTRING_Pin) + 1) * sizeof(WCHAR);
 
     /* check for minium length requirement */
     if (ObjectLength  + sizeof(KSPIN_CONNECT) > IoStack->FileObject->FileName.MaximumLength)