From 9507d41badc95f0c2c3c2fce441e79540c9dad3a Mon Sep 17 00:00:00 2001
From: Johannes Anderwald <johannes.anderwald@reactos.org>
Date: Thu, 11 Dec 2008 14:51:57 +0000
Subject: [PATCH] - Implement IDrmPort, IDrmPort2 interface

svn path=/trunk/; revision=38018
---
 .../wdm/audio/backpln/portcls/drm_port.c      | 166 ++++++++++++++++++
 .../wdm/audio/backpln/portcls/portcls.rbuild  |   1 +
 .../wdm/audio/backpln/portcls/private.h       |   2 +
 3 files changed, 169 insertions(+)
 create mode 100644 reactos/drivers/wdm/audio/backpln/portcls/drm_port.c

diff --git a/reactos/drivers/wdm/audio/backpln/portcls/drm_port.c b/reactos/drivers/wdm/audio/backpln/portcls/drm_port.c
new file mode 100644
index 00000000000..20ad65c628f
--- /dev/null
+++ b/reactos/drivers/wdm/audio/backpln/portcls/drm_port.c
@@ -0,0 +1,166 @@
+#include "private.h"
+
+
+const GUID IID_IDrmPort;
+const GUID IID_IDrmPort2;
+
+typedef struct
+{
+    IDrmPort2Vtbl *lpVtbl;
+    LONG ref;
+}IDrmPort2Impl;
+
+ULONG
+NTAPI
+IDrmPort2_fnAddRef(
+    IN IDrmPort2* iface)
+{
+    IDrmPort2Impl * This = (IDrmPort2Impl*)iface;
+
+    DPRINT("IDrmPort2_AddRef: This %p\n", This);
+
+    return _InterlockedIncrement(&This->ref);
+}
+
+ULONG
+NTAPI
+IDrmPort2_fnRelease(
+    IN IDrmPort2* iface)
+{
+    IDrmPort2Impl * This = (IDrmPort2Impl*)iface;
+
+    _InterlockedDecrement(&This->ref);
+
+    if (This->ref == 0)
+    {
+        ExFreePoolWithTag(This, TAG_PORTCLASS);
+        return 0;
+    }
+    /* Return new reference count */
+    return This->ref;
+}
+
+NTSTATUS
+NTAPI
+IDrmPort2_fnQueryInterface(
+    IN IDrmPort2* iface,
+    IN  REFIID refiid,
+    OUT PVOID* Output)
+{
+    IDrmPort2Impl * This = (IDrmPort2Impl*)iface;
+
+    if (IsEqualGUIDAligned(refiid, &IID_IDrmPort) ||
+        IsEqualGUIDAligned(refiid, &IID_IDrmPort2) ||
+        IsEqualGUIDAligned(refiid, &IID_IUnknown))
+    {
+        *Output = (PVOID)&This->lpVtbl;
+        _InterlockedIncrement(&This->ref);
+        return STATUS_SUCCESS;
+    }
+
+    DPRINT("IDrmPort2_QueryInterface: This %p unknown iid\n", This, This->ref);
+    return STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS
+NTAPI
+IDrmPort2_fnCreateContentMixed(
+    IN IDrmPort2 * iface,
+    IN  PULONG paContentId,
+    IN  ULONG cContentId,
+    OUT PULONG pMixedContentId)
+{
+    return DrmCreateContentMixed(paContentId, cContentId, pMixedContentId);
+}
+
+NTSTATUS
+NTAPI
+IDrmPort2_fnDestroyContent(
+    IN IDrmPort2 * iface,
+    IN ULONG ContentId)
+{
+    return DrmDestroyContent(ContentId);
+}
+
+NTSTATUS
+NTAPI
+IDrmPort2_fnForwardContentToFileObject(
+    IN IDrmPort2 * iface,
+    IN ULONG ContentId,
+    IN PFILE_OBJECT FileObject)
+{
+    return DrmForwardContentToFileObject(ContentId, FileObject);
+}
+
+NTSTATUS
+NTAPI
+IDrmPort2_fnForwardContentToInterface(
+    IN IDrmPort2 * iface,
+    IN ULONG ContentId,
+    IN PUNKNOWN pUnknown,
+    IN ULONG NumMethods)
+{
+    return DrmForwardContentToInterface(ContentId, pUnknown, NumMethods);
+}
+
+NTSTATUS
+NTAPI
+IDrmPort2_fnGetContentRights(
+    IN IDrmPort2 * iface,
+    IN ULONG ContentId,
+    OUT PDRMRIGHTS  DrmRights)
+{
+    return DrmGetContentRights(ContentId, DrmRights);
+}
+
+NTSTATUS
+NTAPI
+IDrmPort2_fnAddContentHandlers(
+    IN IDrmPort2 * iface,
+    IN ULONG ContentId,
+    IN PVOID * paHandlers,
+    IN ULONG NumHandlers)
+{
+    return DrmAddContentHandlers(ContentId, paHandlers, NumHandlers);
+}
+
+NTSTATUS
+NTAPI
+IDrmPort2_fnForwardContentToDeviceObject(
+    IN IDrmPort2 * iface,
+    IN ULONG ContentId,
+    IN PVOID Reserved,
+    IN PCDRMFORWARD DrmForward)
+{
+    return DrmForwardContentToDeviceObject(ContentId, Reserved, DrmForward);
+}
+
+static IDrmPort2Vtbl vt_IDrmPort2 =
+{
+    /* IUnknown methods */
+    IDrmPort2_fnQueryInterface,
+    IDrmPort2_fnAddRef,
+    IDrmPort2_fnRelease,
+    IDrmPort2_fnCreateContentMixed,
+    IDrmPort2_fnDestroyContent,
+    IDrmPort2_fnForwardContentToFileObject,
+    IDrmPort2_fnForwardContentToInterface,
+    IDrmPort2_fnGetContentRights,
+    IDrmPort2_fnAddContentHandlers,
+    IDrmPort2_fnForwardContentToDeviceObject
+};
+
+NTSTATUS
+NewIDrmPort(
+    OUT PDRMPORT2 *OutPort)
+{
+    IDrmPort2Impl * This = ExAllocatePoolWithTag(NonPagedPool, sizeof(IDrmPort2Impl), TAG_PORTCLASS);
+    if (!This)
+        return STATUS_INSUFFICIENT_RESOURCES;
+
+    This->lpVtbl = &vt_IDrmPort2;
+    This->ref = 1;
+
+    *OutPort = (PDRMPORT2)&This->lpVtbl;
+    return STATUS_SUCCESS;
+}
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild b/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
index 57a899175d0..b15f9ed89fe 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
+++ b/reactos/drivers/wdm/audio/backpln/portcls/portcls.rbuild
@@ -13,6 +13,7 @@
 	<file>dll.c</file>
 	<file>dma_master.c</file>
 	<file>dma_slave.c</file>
+	<file>drm_port.c</file>
 	<file>adapter.c</file>
 	<file>irp.c</file>
 	<file>interrupt.c</file>
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/private.h b/reactos/drivers/wdm/audio/backpln/portcls/private.h
index ba05eebbd5c..7a008af21e2 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/private.h
+++ b/reactos/drivers/wdm/audio/backpln/portcls/private.h
@@ -74,6 +74,8 @@ NTSTATUS NewDmaChannelSlave(
     IN PDMA_ADAPTER Adapter,
     OUT PDMACHANNELSLAVE* DmaChannel);
 
+NTSTATUS NewIDrmPort(
+    OUT PDRMPORT2 *OutPort);
 
 typedef struct
 {