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

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2020-09-26 03:20:57 -05:00
//---------------------------------------------------------------------------
//
// Module: gni.h
//
// Description: Graph Node Instance 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 cTopologyNodes Topology.TopologyNodesCount
#define cTopologyConnections Topology.TopologyConnectionsCount
//---------------------------------------------------------------------------
// Classes
//---------------------------------------------------------------------------
typedef class CGraphNodeInstance : public CListDoubleItem
{
public:
CGraphNodeInstance(
PGRAPH_NODE pGraphNode,
PFILTER_INSTANCE pFilterInstance
);
CGraphNodeInstance(
PGRAPH_NODE pGraphNode
);
~CGraphNodeInstance();
NTSTATUS Create();
ENUMFUNC Destroy()
{
Assert(this);
delete this;
return(STATUS_CONTINUE);
};
NTSTATUS GetTopologyNodeFileObject(
OUT PFILE_OBJECT *ppFileObject,
IN ULONG NodeId
);
BOOL IsGraphValid(
PSTART_NODE pStartNode,
ULONG PinId
);
VOID AddTopologyConnection(
ULONG ulFromNode,
ULONG ulFromPin,
ULONG ulToNode,
ULONG ulToPin
);
NTSTATUS GetPinInstances(
PIRP pIrp,
PKSP_PIN pPin,
PKSPIN_CINSTANCES pcInstances
);
BOOL IsPinInstances(
ULONG ulPinId
);
private:
NTSTATUS CreatePinDescriptors();
VOID DestroyPinDescriptors();
NTSTATUS CreateSysAudioTopology();
VOID DestroySysAudioTopology();
VOID CreateTopologyTables();
VOID ProcessLogicalFilterNodeTopologyNode(
PLIST_MULTI_LOGICAL_FILTER_NODE plstLogicalFilterNode,
NTSTATUS (CTopologyNode::*Function)(
PVOID pGraphNodeInstance
)
);
VOID ProcessLogicalFilterNodeTopologyConnection(
PLIST_MULTI_LOGICAL_FILTER_NODE plstLogicalFilterNode,
NTSTATUS (CTopologyConnection::*Function)(
PVOID pGraphNodeInstance
)
);
public:
#ifdef DEBUG
ENUMFUNC Dump();
VOID DumpPinDescriptors();
#endif
LIST_DATA_TOPOLOGY_NODE lstTopologyNodeGlobalSelect;
LIST_START_NODE_INSTANCE lstStartNodeInstance;
PFILTER_INSTANCE pFilterInstance;
PGRAPH_NODE pGraphNode;
KSTOPOLOGY Topology;
ULONG cPins;
// Index by pin number
PKSPIN_CINSTANCES pacPinInstances;
PULONG pulPinFlags;
PKSPIN_DESCRIPTOR paPinDescriptors;
PLIST_DATA_START_NODE *aplstStartNode;
PLIST_DATA_TOPOLOGY_NODE palstTopologyNodeSelect;
PLIST_DATA_TOPOLOGY_NODE palstTopologyNodeNotSelect;
// Index by node number
PTOPOLOGY_NODE *papTopologyNode;
PFILTER_NODE_INSTANCE *papFilterNodeInstanceTopologyTable;
// Index by virtual source index
ULONG *paulNodeNumber;
private:
ULONG ulFlags;
public:
DefineSignature(0x20494E47); // GNI
} GRAPH_NODE_INSTANCE, *PGRAPH_NODE_INSTANCE;
//---------------------------------------------------------------------------
typedef ListDoubleDestroy<GRAPH_NODE_INSTANCE> LIST_GRAPH_NODE_INSTANCE;
//---------------------------------------------------------------------------
// Local prototypes
//---------------------------------------------------------------------------
extern "C" {
NTSTATUS
CreateIdentifierArray(
PLIST_DATA_START_NODE pldhStartNode,
PULONG pulCount,
PKSIDENTIFIER *ppIdentifier,
PKSIDENTIFIER (*GetFunction)(
PSTART_NODE pStartNode
)
);
PKSDATARANGE
GetStartNodeDataRange(
PSTART_NODE pStartNode
);
PKSIDENTIFIER
GetStartNodeInterface(
PSTART_NODE pStartNode
);
PKSIDENTIFIER
GetStartNodeMedium(
PSTART_NODE pStartNode
);
ENUMFUNC
FindTopologyNode(
IN PTOPOLOGY_CONNECTION pTopologyConnection,
IN BOOL fToDirection,
IN PTOPOLOGY_NODE pTopologyNode
);
} // extern "C"