windows-nt/Source/XPSP1/NT/drivers/wdm/audio/sysaudio/tc.h

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2020-09-26 03:20:57 -05:00
//---------------------------------------------------------------------------
//
// Module: tc.h
//
// Description: Topology Connection Class
//
//
//@@BEGIN_MSINTERNAL
// Development Team:
// Mike McLaughlin
//
// History: Date Author Comment
//
//@@END_MSINTERNAL
//---------------------------------------------------------------------------
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
// Copyright (c) 1996-1999 Microsoft Corporation. All Rights Reserved.
//
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
// Constants and Macros
//---------------------------------------------------------------------------
#define TOPC_FLAGS_FILTER_CONNECTION_TYPE 0x00000000
#define TOPC_FLAGS_PHYSICAL_CONNECTION_TYPE 0x00000001
#define TOPC_FLAGS_GRAPH_CONNECTION_TYPE 0x00000002
#define TOPC_FLAGS_CONNECTION_TYPE 0x00000003
#define IS_CONNECTION_TYPE(pTopologyConnection, Type) \
(((pTopologyConnection)->ulFlags & TOPC_FLAGS_CONNECTION_TYPE) ==\
TOPC_FLAGS_##Type##_CONNECTION_TYPE)
//---------------------------------------------------------------------------
// Classes
//---------------------------------------------------------------------------
typedef class CTopologyConnection : public CListMultiItem
{
private:
CTopologyConnection(
PTOPOLOGY_PIN pTopologyPinFrom,
PTOPOLOGY_PIN pTopologyPinTo,
PPIN_INFO pPinInfoFrom,
PPIN_INFO pPinInfoTo
);
~CTopologyConnection(
);
public:
static NTSTATUS
Create(
PTOPOLOGY_CONNECTION *ppTopologyConnection,
PFILTER_NODE pFilterNode,
PGRAPH_NODE pGraphNode,
PTOPOLOGY_PIN pTopologyPinFrom,
PTOPOLOGY_PIN pTopologyPinTo,
PPIN_INFO pPinInfoFrom,
PPIN_INFO pPinInfoTo
);
ENUMFUNC
Destroy()
{
Assert(this);
delete this;
return(STATUS_CONTINUE);
};
ENUMFUNC
CheckDuplicate(
PVOID ppTopologyConnection
);
ENUMFUNC
ProcessTopologyConnection(
PVOID pGraphNodeInstance
);
BOOL
IsTopologyConnectionOnGraphNode(
PGRAPH_NODE pGraphNode
);
#ifdef DEBUG
ENUMFUNC Dump();
#endif
ULONG ulFlags;
PTOPOLOGY_PIN pTopologyPinFrom;
PTOPOLOGY_PIN pTopologyPinTo;
PPIN_INFO pPinInfoFrom;
PPIN_INFO pPinInfoTo;
DefineSignature(0x20204354); // TC
} TOPOLOGY_CONNECTION, *PTOPOLOGY_CONNECTION;
//---------------------------------------------------------------------------
typedef ListMultiDestroy<TOPOLOGY_CONNECTION> LIST_DESTROY_TOPOLOGY_CONNECTION;
typedef LIST_DESTROY_TOPOLOGY_CONNECTION *PLIST_DESTROY_TOPOLOGY_CONNECTION;
//---------------------------------------------------------------------------
typedef ListMulti<TOPOLOGY_CONNECTION> LIST_MULTI_TOPOLOGY_CONNECTION;
//---------------------------------------------------------------------------
// Globals
//---------------------------------------------------------------------------
extern ULONG gcTopologyConnections;
//---------------------------------------------------------------------------
// Local prototypes
//---------------------------------------------------------------------------
NTSTATUS
CreatePinInfoConnection(
IN PTOPOLOGY_CONNECTION *ppTopologyConnection,
IN PFILTER_NODE pFilterNode,
IN PGRAPH_NODE pGraphNode,
IN PPIN_INFO pPinInfoSource,
IN PPIN_INFO pPinInfoSink
);
//---------------------------------------------------------------------------