topology.c File Reference

#include "precomp.h"
#include <debug.h>

Include dependency graph for topology.c:

Go to the source code of this file.

Functions
VOID	MMixerPrintTopology (PTOPOLOGY Topology)
MIXER_STATUS	MMixerAllocateTopology (IN PMIXER_CONTEXT MixerContext, IN ULONG NodesCount, IN ULONG PinCount, OUT PTOPOLOGY *OutTopology)
VOID	MMixerResetTopologyVisitStatus (IN OUT PTOPOLOGY Topology)
VOID	MMixerInitializeTopologyNodes (IN PMIXER_CONTEXT MixerContext, IN PKSMULTIPLE_ITEM NodeTypes, IN OUT PTOPOLOGY Topology)
MIXER_STATUS	MMixerAddPinConnection (IN PMIXER_CONTEXT MixerContext, IN PPIN Pin, IN PTOPOLOGY_NODE Node, IN ULONG bPinToNode)
MIXER_STATUS	MMixerHandleNodeToNodeConnection (IN PMIXER_CONTEXT MixerContext, IN PKSTOPOLOGY_CONNECTION Connection, IN OUT PTOPOLOGY Topology)
MIXER_STATUS	MMixerAddPinToPinConnection (IN PMIXER_CONTEXT MixerContext, IN OUT PPIN InPin, IN OUT PPIN OutPin)
MIXER_STATUS	MMixerHandleNodePinConnection (IN PMIXER_CONTEXT MixerContext, IN PKSTOPOLOGY_CONNECTION Connection, IN OUT PTOPOLOGY Topology)
MIXER_STATUS	MMixerExploreTopology (IN PMIXER_CONTEXT MixerContext, IN PKSMULTIPLE_ITEM NodeConnections, IN PKSMULTIPLE_ITEM NodeTypes, IN OUT PTOPOLOGY Topology)
VOID	MMixerAddPinIndexToArray (IN PMIXER_CONTEXT MixerContext, IN ULONG PinId, IN ULONG MaxPins, OUT PULONG OutPinCount, OUT PULONG OutPins)
VOID	MMixerGetUpOrDownStreamPins (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN PTOPOLOGY_NODE TopologyNode, IN ULONG bUpStream, OUT PULONG OutPinCount, OUT PULONG OutPins)
ULONG	MMixerGetNodeIndexFromGuid (IN PTOPOLOGY Topology, IN const GUID *NodeType)
VOID	MMixerGetAllUpOrDownstreamPinsFromNodeIndex (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN ULONG NodeIndex, IN ULONG bUpStream, OUT PULONG OutPinsCount, OUT PULONG OutPins)
VOID	MMixerGetUpOrDownstreamNodes (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN PTOPOLOGY_NODE TopologyNode, IN ULONG bUpStream, OUT PULONG OutNodeCount, OUT PULONG OutNodes)
MIXER_STATUS	MMixerGetAllUpOrDownstreamNodesFromNodeIndex (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN ULONG NodeIndex, IN ULONG bUpStream, OUT PULONG OutNodesCount, OUT PULONG OutNodes)
MIXER_STATUS	MMixerGetAllUpOrDownstreamPinsFromPinIndex (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN ULONG PinIndex, IN ULONG bUpStream, OUT PULONG OutPinsCount, OUT PULONG OutPins)
VOID	MMixerGetAllUpOrDownstreamNodesFromPinIndex (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN ULONG PinIndex, IN ULONG bUpStream, OUT PULONG OutNodesCount, OUT PULONG OutNodes)
VOID	MMixerGetNextNodesFromPinIndex (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN ULONG PinIndex, IN ULONG bUpStream, OUT PULONG OutNodesCount, OUT PULONG OutNodes)
VOID	MMixerGetNextNodesFromNodeIndex (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN ULONG NodeIndex, IN ULONG bUpStream, OUT PULONG OutNodesCount, OUT PULONG OutNodes)
VOID	MMixerGetTopologyPinCount (IN PTOPOLOGY Topology, OUT PULONG PinCount)
MIXER_STATUS	MMixerAllocateTopologyPinArray (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, OUT PULONG *OutPins)
MIXER_STATUS	MMixerAllocateTopologyNodeArray (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, OUT PULONG *OutNodes)
VOID	MMixerIsNodeTerminator (IN PTOPOLOGY Topology, IN ULONG NodeIndex, OUT ULONG *bTerminator)
MIXER_STATUS	MMixerIsNodeConnectedToPin (IN PMIXER_CONTEXT MixerContext, IN PTOPOLOGY Topology, IN ULONG NodeIndex, IN ULONG PinId, IN ULONG bUpStream, OUT PULONG bConnected)
VOID	MMixerGetConnectedFromLogicalTopologyPins (IN PTOPOLOGY Topology, IN ULONG NodeIndex, OUT PULONG OutPinCount, OUT PULONG OutPins)
LPGUID	MMixerGetNodeTypeFromTopology (IN PTOPOLOGY Topology, IN ULONG NodeIndex)
VOID	MMixerSetTopologyPinReserved (IN PTOPOLOGY Topology, IN ULONG PinId)
VOID	MMixerIsTopologyPinReserved (IN PTOPOLOGY Topology, IN ULONG PinId, OUT PULONG bReserved)
VOID	MMixerSetTopologyNodeReserved (IN PTOPOLOGY Topology, IN ULONG NodeIndex)
VOID	MMixerIsTopologyNodeReserved (IN PTOPOLOGY Topology, IN ULONG NodeIndex, OUT PULONG bReserved)
MIXER_STATUS	MMixerCreateTopology (IN PMIXER_CONTEXT MixerContext, IN ULONG PinCount, IN PKSMULTIPLE_ITEM NodeConnections, IN PKSMULTIPLE_ITEM NodeTypes, OUT PTOPOLOGY *OutTopology)

Function Documentation

MMixerAddPinConnection()

MIXER_STATUS MMixerAddPinConnection	(	IN PMIXER_CONTEXT	MixerContext,
		IN PPIN	Pin,
		IN PTOPOLOGY_NODE	Node,
		IN ULONG	bPinToNode
	)

Definition at line 144 of file topology.c.

{
    ULONG Count;
    PULONG NewPinsIndex, OldPinsIndex;
    PTOPOLOGY_NODE * NewNodes, *OldNodes;
 
    if (bPinToNode)
    {
        /* get existing count */
        Count = Pin->NodesConnectedToCount;
        OldNodes = Pin->NodesConnectedTo;
    }
    else
    {
        /* get existing count */
        Count = Pin->NodesConnectedFromCount;
        OldNodes = Pin->NodesConnectedFrom;
    }
 
    /* allocate new nodes array */
    NewNodes = MixerContext->Alloc(sizeof(PTOPOLOGY_NODE) * (Count + 1));
 
    if (!NewNodes)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    if (Count)
    {
        /* copy existing nodes */
        MixerContext->Copy(NewNodes, OldNodes, sizeof(PTOPOLOGY) * Count);
 
        /* release old nodes array */
        MixerContext->Free(OldNodes);
    }
 
    /* add new topology node */
    NewNodes[Count] = Node;
 
    if (bPinToNode)
    {
        /* replace old nodes array */
        Pin->NodesConnectedTo = NewNodes;
 
        /* increment nodes count */
        Pin->NodesConnectedToCount++;
 
        /* now enlarge PinConnectedFromCount*/
        Count = Node->PinConnectedFromCount;
 
        /* connected pin count for node */
        OldPinsIndex = Node->PinConnectedFrom;
    }
    else
    {
        /* replace old nodes array */
        Pin->NodesConnectedFrom = NewNodes;
 
        /* increment nodes count */
        Pin->NodesConnectedFromCount++;
 
        /* now enlarge PinConnectedFromCount*/
        Count = Node->PinConnectedToCount;
 
        /* connected pin count for node */
        OldPinsIndex = Node->PinConnectedTo;
    }
 
    /* allocate pin connection index */
    NewPinsIndex = MixerContext->Alloc(sizeof(ULONG) * (Count + 1));
 
    if (!NewPinsIndex)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    if (Count)
    {
        /* copy existing nodes */
        MixerContext->Copy(NewPinsIndex, OldPinsIndex, sizeof(ULONG) * Count);
 
        /* release old nodes array */
        MixerContext->Free(OldPinsIndex);
    }
 
    /* add new topology node */
    NewPinsIndex[Count] = Pin->PinId;
 
    if (bPinToNode)
    {
        /* replace old nodes array */
        Node->PinConnectedFrom = NewPinsIndex;
 
        /* increment pin count */
        Node->PinConnectedFromCount++;
    }
    else
    {
        /* replace old nodes array */
        Node->PinConnectedTo = NewPinsIndex;
 
        /* increment pin count */
        Node->PinConnectedToCount++;
    }
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerHandleNodePinConnection().

MMixerAddPinIndexToArray()

VOID MMixerAddPinIndexToArray	(	IN PMIXER_CONTEXT	MixerContext,
		IN ULONG	PinId,
		IN ULONG	MaxPins,
		OUT PULONG	OutPinCount,
		OUT PULONG	OutPins
	)

Definition at line 568 of file topology.c.

{
    ULONG Index;
 
    for(Index = 0; Index < MaxPins; Index++)
    {
        if (OutPins[Index] != MAXULONG)
        {
            if (OutPins[Index] > PinId)
            {
                /* shift entries up */
                MixerContext->Copy(&OutPins[Index + 1], &OutPins[Index], (MaxPins - (Index + 1)) * sizeof(ULONG));
 
                /* store pin id */
                OutPins[Index] = PinId;
 
                /* increment pin count */
                (*OutPinCount)++;
 
                /* done */
                return;
            }
        }
        else
        {
            /* store pin id */
            OutPins[Index] = PinId;
 
            /* increment pin count */
            (*OutPinCount)++;
 
            /* done */
            return;
        }
    }
}

Referenced by MMixerGetAllUpOrDownstreamNodesFromPinIndex(), MMixerGetAllUpOrDownstreamPinsFromPinIndex(), MMixerGetUpOrDownstreamNodes(), and MMixerGetUpOrDownStreamPins().

MMixerAddPinToPinConnection()

MIXER_STATUS MMixerAddPinToPinConnection	(	IN PMIXER_CONTEXT	MixerContext,
		IN OUT PPIN	InPin,
		IN OUT PPIN	OutPin
	)

Definition at line 368 of file topology.c.

{
    ULONG Count;
    PULONG NewPinsIndex;
 
    /* now enlarge PinConnectedTo */
    Count = InPin->PinConnectedToCount;
 
    /* allocate pin connection index */
    NewPinsIndex = MixerContext->Alloc(sizeof(ULONG) * (Count + 1));
 
    if (!NewPinsIndex)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    if (Count)
    {
        /* copy existing nodes */
        MixerContext->Copy(NewPinsIndex, InPin->PinConnectedTo, sizeof(ULONG) * Count);
 
        /* release old nodes array */
        MixerContext->Free(InPin->PinConnectedTo);
    }
 
    /* add new topology node */
    NewPinsIndex[Count] = OutPin->PinId;
 
    /* replace old nodes array */
    InPin->PinConnectedTo = NewPinsIndex;
 
    /* increment pin count */
    InPin->PinConnectedToCount++;
 
    /* now enlarge PinConnectedFrom */
    Count = OutPin->PinConnectedFromCount;
 
    /* allocate pin connection index */
    NewPinsIndex = MixerContext->Alloc(sizeof(ULONG) * (Count + 1));
 
    if (!NewPinsIndex)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    if (Count)
    {
        /* copy existing nodes */
        MixerContext->Copy(NewPinsIndex, OutPin->PinConnectedFrom, sizeof(ULONG) * Count);
 
        /* release old nodes array */
        MixerContext->Free(OutPin->PinConnectedFrom);
    }
 
    /* add new topology node */
    NewPinsIndex[Count] = InPin->PinId;
 
    /* replace old nodes array */
    OutPin->PinConnectedFrom = NewPinsIndex;
 
    /* increment pin count */
    OutPin->PinConnectedFromCount++;
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerHandleNodePinConnection().

MMixerAllocateTopology()

MIXER_STATUS MMixerAllocateTopology	(	IN PMIXER_CONTEXT	MixerContext,
		IN ULONG	NodesCount,
		IN ULONG	PinCount,
		OUT PTOPOLOGY *	OutTopology
	)

Definition at line 43 of file topology.c.

{
    PTOPOLOGY Topology;
 
    /* allocate topology */
    Topology = (PTOPOLOGY)MixerContext->Alloc(sizeof(TOPOLOGY));
 
    if (!Topology)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    /* allocate topology pins */
    Topology->TopologyPins = (PPIN) MixerContext->Alloc(sizeof(PIN) * PinCount);
 
    if (!Topology->TopologyPins)
    {
        /* release memory */
        MixerContext->Free(Topology);
 
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    /* allocate topology nodes */
    if (NodesCount)
    {
        Topology->TopologyNodes = (PTOPOLOGY_NODE) MixerContext->Alloc(sizeof(TOPOLOGY_NODE) * NodesCount);
 
        if (!Topology->TopologyNodes)
        {
            /* release memory */
            MixerContext->Free(Topology->TopologyPins);
            MixerContext->Free(Topology);
 
            /* out of memory */
            return MM_STATUS_NO_MEMORY;
        }
    }
 
    /* initialize topology */
    Topology->TopologyPinsCount = PinCount;
    Topology->TopologyNodesCount = NodesCount;
 
    /* store result */
    *OutTopology = Topology;
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerCreateTopology().

MMixerAllocateTopologyNodeArray()

MIXER_STATUS MMixerAllocateTopologyNodeArray	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		OUT PULONG *	OutNodes
	)

Definition at line 1045 of file topology.c.

{
    PULONG Nodes;
    ULONG Index;
 
    /* sanity check */
    ASSERT(Topology->TopologyNodesCount != 0);
 
    /* allocate topology pins */
    Nodes = MixerContext->Alloc(Topology->TopologyNodesCount * sizeof(ULONG));
 
    if (!Nodes)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    /* mark index as unused */
    for(Index = 0; Index < Topology->TopologyNodesCount; Index++)
        Nodes[Index] = MAXULONG;
 
    /* store result */
    *OutNodes = Nodes;
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerAddMixerControl(), MMixerAddMixerControlsToDestinationLine(), MMixerAddMixerSourceLines(), MMixerCountMixerControls(), and MMixerSetGetMuxControlDetails().

MMixerAllocateTopologyPinArray()

MIXER_STATUS MMixerAllocateTopologyPinArray	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		OUT PULONG *	OutPins
	)

Definition at line 1013 of file topology.c.

{
    PULONG Pins;
    ULONG Index;
 
    /* sanity check */
    ASSERT(Topology->TopologyPinsCount != 0);
 
    /* allocate topology pins */
    Pins = MixerContext->Alloc(Topology->TopologyPinsCount * sizeof(ULONG));
 
    if (!Pins)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    /* mark index as unused */
    for(Index = 0; Index < Topology->TopologyPinsCount; Index++)
        Pins[Index] = MAXULONG;
 
    /* store result */
    *OutPins = Pins;
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerAddMixerSourceLines(), MMixerHandlePhysicalConnection(), MMixerHandleTopologyFilter(), MMixerInitializeFilter(), and MMixerIsNodeConnectedToPin().

MMixerCreateTopology()

MIXER_STATUS MMixerCreateTopology	(	IN PMIXER_CONTEXT	MixerContext,
		IN ULONG	PinCount,
		IN PKSMULTIPLE_ITEM	NodeConnections,
		IN PKSMULTIPLE_ITEM	NodeTypes,
		OUT PTOPOLOGY *	OutTopology
	)

Definition at line 1245 of file topology.c.

{
    MIXER_STATUS Status;
    PTOPOLOGY Topology;
 
    /* allocate topology */
    Status = MMixerAllocateTopology(MixerContext, NodeTypes->Count, PinCount, &Topology);
 
    if (Status != MM_STATUS_SUCCESS)
    {
        /* failed to allocate topology */
        return Status;
    }
 
    /* initialize topology nodes */
    MMixerInitializeTopologyNodes(MixerContext, NodeTypes, Topology);
 
    /* explore topology */
    Status = MMixerExploreTopology(MixerContext, NodeConnections, NodeTypes, Topology);
 
    if (Status != MM_STATUS_SUCCESS)
    {
        /* failed to allocate topology */
        return Status;
    }
 
    MMixerPrintTopology(Topology);
 
    /* store result */
    *OutTopology = Topology;
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerBuildTopology().

MMixerExploreTopology()

MIXER_STATUS MMixerExploreTopology	(	IN PMIXER_CONTEXT	MixerContext,
		IN PKSMULTIPLE_ITEM	NodeConnections,
		IN PKSMULTIPLE_ITEM	NodeTypes,
		IN OUT PTOPOLOGY	Topology
	)

Definition at line 521 of file topology.c.

{
    ULONG Index;
    PKSTOPOLOGY_CONNECTION Connection;
    MIXER_STATUS Status;
 
    /* sanity check */
    ASSERT(Topology->TopologyNodesCount == NodeTypes->Count);
 
    /* get node connections */
    Connection = (PKSTOPOLOGY_CONNECTION)(NodeConnections + 1);
 
    for(Index = 0; Index < NodeConnections->Count; Index++)
    {
        if (Connection[Index].FromNode == KSFILTER_NODE ||
            Connection[Index].ToNode == KSFILTER_NODE)
        {
            /* handle connection from Pin -> Node / Node->Pin */
            Status = MMixerHandleNodePinConnection(MixerContext,
                                                   &Connection[Index],
                                                   Topology);
 
        }
        else
        {
            /* handle connection from Node -> Node */
            Status = MMixerHandleNodeToNodeConnection(MixerContext,
                                                      &Connection[Index],
                                                      Topology);
        }
 
        if (Status != MM_STATUS_SUCCESS)
        {
            /* failed to handle connection */
            return Status;
        }
    }
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerCreateTopology().

MMixerGetAllUpOrDownstreamNodesFromNodeIndex()

MIXER_STATUS MMixerGetAllUpOrDownstreamNodesFromNodeIndex	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex,
		IN ULONG	bUpStream,
		OUT PULONG	OutNodesCount,
		OUT PULONG	OutNodes
	)

Definition at line 781 of file topology.c.

{
    PTOPOLOGY_NODE TopologyNode;
 
    /* reset visited status */
    MMixerResetTopologyVisitStatus(Topology);
 
    /* sanity check */
    ASSERT(Topology->TopologyNodesCount > NodeIndex);
 
    /* get topology node */
    TopologyNode = &Topology->TopologyNodes[NodeIndex];
 
    /* now visit all upstream pins & nodes */
    MMixerGetUpOrDownstreamNodes(MixerContext, Topology, TopologyNode, bUpStream, OutNodesCount, OutNodes);
 
    /* done */
    return MM_STATUS_SUCCESS;
 
}

Referenced by MMixerAddMixerSourceLines(), and MMixerGetAllUpOrDownstreamNodesFromPinIndex().

MMixerGetAllUpOrDownstreamNodesFromPinIndex()

VOID MMixerGetAllUpOrDownstreamNodesFromPinIndex	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN ULONG	PinIndex,
		IN ULONG	bUpStream,
		OUT PULONG	OutNodesCount,
		OUT PULONG	OutNodes
	)

Definition at line 873 of file topology.c.

{
    ULONG Index, TopologyNodesCount;
    PPIN Pin;
    PTOPOLOGY_NODE *TopologyNodes;
 
    /* mark them as empty */
    *OutNodesCount = 0;
 
    /* get pin */
    Pin = &Topology->TopologyPins[PinIndex];
 
    if (bUpStream)
    {
        /* use nodes to which a pin is attached to */
        TopologyNodes = Pin->NodesConnectedFrom;
        TopologyNodesCount = Pin->NodesConnectedFromCount;
    }
    else
    {
        /* use nodes which are attached to a node */
        TopologyNodes = Pin->NodesConnectedTo;
        TopologyNodesCount = Pin->NodesConnectedToCount;
    }
 
    /* reset visited status */
    MMixerResetTopologyVisitStatus(Topology);
 
    /* sanity check */
    ASSERT(Topology->TopologyPinsCount > PinIndex);
 
    /* now visit all up / down stream pins & nodes */
    for(Index = 0; Index < TopologyNodesCount; Index++)
    {
        /* add node to array */
        MMixerAddPinIndexToArray(MixerContext, TopologyNodes[Index]->NodeIndex, Topology->TopologyNodesCount, OutNodesCount, OutNodes);
 
        /* explore all connected nodes with helper */
        MMixerGetAllUpOrDownstreamNodesFromNodeIndex(MixerContext, Topology, TopologyNodes[Index]->NodeIndex, bUpStream, OutNodesCount, OutNodes);
    }
}

MMixerGetAllUpOrDownstreamPinsFromNodeIndex()

VOID MMixerGetAllUpOrDownstreamPinsFromNodeIndex	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex,
		IN ULONG	bUpStream,
		OUT PULONG	OutPinsCount,
		OUT PULONG	OutPins
	)

Definition at line 709 of file topology.c.

{
    PTOPOLOGY_NODE TopologyNode;
 
    /* reset visited status */
    MMixerResetTopologyVisitStatus(Topology);
 
    /* sanity check */
    ASSERT(Topology->TopologyNodesCount > NodeIndex);
 
    /* get topology node */
    TopologyNode = &Topology->TopologyNodes[NodeIndex];
 
    /* now visit all upstream pins & nodes */
    MMixerGetUpOrDownStreamPins(MixerContext, Topology, TopologyNode, bUpStream, OutPinsCount, OutPins);
}

Referenced by MMixerAddMixerSourceLines(), MMixerGetAllUpOrDownstreamPinsFromPinIndex(), MMixerInitializeFilter(), and MMixerIsNodeConnectedToPin().

MMixerGetAllUpOrDownstreamPinsFromPinIndex()

MIXER_STATUS MMixerGetAllUpOrDownstreamPinsFromPinIndex	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN ULONG	PinIndex,
		IN ULONG	bUpStream,
		OUT PULONG	OutPinsCount,
		OUT PULONG	OutPins
	)

Definition at line 809 of file topology.c.

{
    ULONG Index, TopologyNodesCount, TopologyPinsCount;
    PPIN Pin;
    PTOPOLOGY_NODE *TopologyNodes;
    PULONG TopologyPins;
 
    /* get pin */
    Pin = &Topology->TopologyPins[PinIndex];
 
    if (bUpStream)
    {
        /* use nodes to which this pin is attached to */
        TopologyNodes = Pin->NodesConnectedFrom;
        TopologyNodesCount = Pin->NodesConnectedFromCount;
 
        /* use pins to which this pin is attached to */
        TopologyPins = Pin->PinConnectedFrom;
        TopologyPinsCount = Pin->PinConnectedFromCount;
 
    }
    else
    {
        /* use nodes which are attached to a pin */
        TopologyNodes = Pin->NodesConnectedTo;
        TopologyNodesCount = Pin->NodesConnectedToCount;
 
        /* use pins which are attached to this pin */
        TopologyPins = Pin->PinConnectedTo;
        TopologyPinsCount = Pin->PinConnectedToCount;
    }
 
    /* reset visited status */
    MMixerResetTopologyVisitStatus(Topology);
 
    /* sanity check */
    ASSERT(Topology->TopologyPinsCount > PinIndex);
 
    /* add pins which are directly connected to this pin */
    for(Index = 0; Index < TopologyPinsCount; Index++)
    {
        /* add them to pin array */
        MMixerAddPinIndexToArray(MixerContext, TopologyPins[Index], Topology->TopologyPinsCount, OutPinsCount, OutPins);
    }
 
    /* now visit all up / down stream pins & nodes */
    for(Index = 0; Index < TopologyNodesCount; Index++)
    {
        /* explore all connected pins with helper */
        MMixerGetAllUpOrDownstreamPinsFromNodeIndex(MixerContext, Topology, TopologyNodes[Index]->NodeIndex, bUpStream, OutPinsCount, OutPins);
    }
 
    /* done */
    return MM_STATUS_SUCCESS;
 
}

Referenced by MMixerHandlePhysicalConnection(), and MMixerHandleTopologyFilter().

MMixerGetConnectedFromLogicalTopologyPins()

VOID MMixerGetConnectedFromLogicalTopologyPins	(	IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex,
		OUT PULONG	OutPinCount,
		OUT PULONG	OutPins
	)

Definition at line 1158 of file topology.c.

{
    ULONG Index;
    PTOPOLOGY_NODE Node;
 
    /* sanity check */
    ASSERT(NodeIndex < Topology->TopologyNodesCount);
 
    /* get node */
    Node = &Topology->TopologyNodes[NodeIndex];
 
    for(Index = 0; Index < Node->NodeConnectedFromCount; Index++)
    {
        /* copy logical pin id */
        OutPins[Index] = Node->LogicalPinNodeConnectedFrom[Index];
    }
 
    /* store pin count */
    *OutPinCount = Node->NodeConnectedFromCount;
}

Referenced by MMixerSetGetMuxControlDetails().

MMixerGetNextNodesFromNodeIndex()

VOID MMixerGetNextNodesFromNodeIndex	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex,
		IN ULONG	bUpStream,
		OUT PULONG	OutNodesCount,
		OUT PULONG	OutNodes
	)

Definition at line 965 of file topology.c.

{
    TOPOLOGY_NODE **TopologyNodes;
    ULONG TopologyNodesCount;
    ULONG Index;
 
    /* sanity check */
    ASSERT(NodeIndex < Topology->TopologyNodesCount);
 
    if (bUpStream)
    {
        /* get up stream nodes */
        TopologyNodes = Topology->TopologyNodes[NodeIndex].NodeConnectedFrom;
        TopologyNodesCount = Topology->TopologyNodes[NodeIndex].NodeConnectedFromCount;
    }
    else
    {
        /* get down stream nodes */
        TopologyNodes = Topology->TopologyNodes[NodeIndex].NodeConnectedTo;
        TopologyNodesCount = Topology->TopologyNodes[NodeIndex].NodeConnectedToCount;
    }
 
    /* store topology nodes ids */
    for(Index = 0; Index < TopologyNodesCount; Index++)
    {
        OutNodes[Index] = TopologyNodes[Index]->NodeIndex;
    }
 
    /* store topology nodes count */
    *OutNodesCount = TopologyNodesCount;
}

Referenced by MMixerAddMixerControl(), MMixerCountMixerControls(), and MMixerSetGetMuxControlDetails().

MMixerGetNextNodesFromPinIndex()

VOID MMixerGetNextNodesFromPinIndex	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN ULONG	PinIndex,
		IN ULONG	bUpStream,
		OUT PULONG	OutNodesCount,
		OUT PULONG	OutNodes
	)

Definition at line 922 of file topology.c.

{
    PPIN Pin;
    TOPOLOGY_NODE **TopologyNodes;
    ULONG TopologyNodesCount;
    ULONG Index;
 
    /* sanity check */
    ASSERT(PinIndex < Topology->TopologyPinsCount);
 
    /* get pin */
    Pin = &Topology->TopologyPins[PinIndex];
 
    if (bUpStream)
    {
        /* get up stream nodes */
        TopologyNodes = Pin->NodesConnectedFrom;
        TopologyNodesCount = Pin->NodesConnectedFromCount;
    }
    else
    {
        /* get down stream nodes */
        TopologyNodes = Pin->NodesConnectedTo;
        TopologyNodesCount = Pin->NodesConnectedToCount;
    }
 
    /* store topology nodes ids */
    for(Index = 0; Index < TopologyNodesCount; Index++)
    {
        OutNodes[Index] = TopologyNodes[Index]->NodeIndex;
    }
 
    /* store topology nodes count */
    *OutNodesCount = TopologyNodesCount;
}

Referenced by MMixerCountMixerControls().

MMixerGetNodeIndexFromGuid()

ULONG MMixerGetNodeIndexFromGuid	(	IN PTOPOLOGY	Topology,
		IN const GUID *	NodeType
	)

Definition at line 691 of file topology.c.

{
    ULONG Index;
 
    for(Index = 0; Index < Topology->TopologyNodesCount; Index++)
    {
        if (IsEqualGUIDAligned(NodeType, &Topology->TopologyNodes[Index].NodeType))
        {
            return Index;
        }
    }
 
    return MAXULONG;
}

Referenced by MMixerSetupFilter().

MMixerGetNodeTypeFromTopology()

LPGUID MMixerGetNodeTypeFromTopology	(	IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex
	)

Definition at line 1184 of file topology.c.

{
    /* sanity check */
    ASSERT(NodeIndex < Topology->TopologyNodesCount);
 
    return &Topology->TopologyNodes[NodeIndex].NodeType;
}

Referenced by MMixerAddMixerControl(), and MMixerAddMixerControlsToMixerLineByNodeIndexArray().

MMixerGetTopologyPinCount()

VOID MMixerGetTopologyPinCount	(	IN PTOPOLOGY	Topology,
		OUT PULONG	PinCount
	)

Definition at line 1004 of file topology.c.

{
    /* store pin count */
    *PinCount = Topology->TopologyPinsCount;
}

Referenced by MMixerHandleAlternativeMixers(), and MMixerInitializeMidiForFilter().

MMixerGetUpOrDownstreamNodes()

VOID MMixerGetUpOrDownstreamNodes	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN PTOPOLOGY_NODE	TopologyNode,
		IN ULONG	bUpStream,
		OUT PULONG	OutNodeCount,
		OUT PULONG	OutNodes
	)

Definition at line 733 of file topology.c.

{
    ULONG Index, TopologyNodesCount;
    PTOPOLOGY_NODE Node, *TopologyNodes;
 
    if (bUpStream)
    {
        /* use nodes to which a node is attached to */
        TopologyNodesCount = TopologyNode->NodeConnectedFromCount;
        TopologyNodes = TopologyNode->NodeConnectedFrom;
    }
    else
    {
        /* use nodes which are attached to a node */
        TopologyNodesCount = TopologyNode->NodeConnectedToCount;
        TopologyNodes = TopologyNode->NodeConnectedTo;
    }
 
    /* sanity check */
    ASSERT(TopologyNode->Visited == FALSE);
 
    /* add all connected nodes */
    for(Index = 0; Index < TopologyNodesCount; Index++)
    {
        /* get node */
        Node = TopologyNodes[Index];
 
        /* node should not have been visited */
        ASSERT(Node->Visited == FALSE);
 
        /* mark node as visited */
        TopologyNode->Visited = TRUE;
 
        /* add them to node array */
        MMixerAddPinIndexToArray(MixerContext, Node->NodeIndex, Topology->TopologyNodesCount, OutNodeCount, OutNodes);
 
        /* recursively visit them */
        MMixerGetUpOrDownstreamNodes(MixerContext, Topology, TopologyNodes[Index], bUpStream, OutNodeCount, OutNodes);
    }
}

Referenced by MMixerGetAllUpOrDownstreamNodesFromNodeIndex(), and MMixerGetUpOrDownstreamNodes().

MMixerGetUpOrDownStreamPins()

VOID MMixerGetUpOrDownStreamPins	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN PTOPOLOGY_NODE	TopologyNode,
		IN ULONG	bUpStream,
		OUT PULONG	OutPinCount,
		OUT PULONG	OutPins
	)

Definition at line 611 of file topology.c.

{
    ULONG Index, TopologyNodesCount, PinsCount;
    PTOPOLOGY_NODE *TopologyNodes;
    PULONG Pins;
    PPIN Pin;
 
    /* sanity check */
    ASSERT(TopologyNode->Visited == FALSE);
 
    if (bUpStream)
    {
        /* use pins to which a node is attached to */
        PinsCount = TopologyNode->PinConnectedFromCount;
        Pins = TopologyNode->PinConnectedFrom;
 
        TopologyNodesCount = TopologyNode->NodeConnectedFromCount;
        TopologyNodes = TopologyNode->NodeConnectedFrom;
    }
    else
    {
        /* use pins which are attached to a node */
        PinsCount = TopologyNode->PinConnectedToCount;
        Pins = TopologyNode->PinConnectedTo;
 
        TopologyNodesCount = TopologyNode->NodeConnectedToCount;
        TopologyNodes = TopologyNode->NodeConnectedTo;
    }
 
    /* add all diretly connected pins */
    for(Index = 0; Index < PinsCount; Index++)
    {
        /* sanity check */
        ASSERT(Pins[Index] < Topology->TopologyPinsCount);
 
        /* get pin */
        Pin = &Topology->TopologyPins[Pins[Index]];
 
        /* pin should not have been visited */
        ASSERT(Pin->Visited == FALSE);
        ASSERT(Pins[Index] == Pin->PinId);
 
        /* FIXME support Pin -> Pin connections in iteration */
        if (bUpStream)
        {
            /* indicates a very broken topology Pin -> Pin -> Node <-... */
            ASSERT(Pin->PinConnectedFromCount == 0);
        }
        else
        {
            /* indicates a very broken topology -> Node -> Pin -> Pin */
            ASSERT(Pin->PinConnectedToCount == 0);
        }
 
        /* add them to pin array */
        MMixerAddPinIndexToArray(MixerContext, Pin->PinId, Topology->TopologyPinsCount, OutPinCount, OutPins);
 
        /* mark pin as visited */
        Pin->Visited = TRUE;
    }
 
    /* mark node as visited */
    TopologyNode->Visited = TRUE;
 
    /* now visit all connected nodes */
    for(Index = 0; Index < TopologyNodesCount; Index++)
    {
        /* recursively visit them */
        MMixerGetUpOrDownStreamPins(MixerContext, Topology, TopologyNodes[Index], bUpStream, OutPinCount, OutPins);
    }
 
}

Referenced by MMixerGetAllUpOrDownstreamPinsFromNodeIndex(), and MMixerGetUpOrDownStreamPins().

MMixerHandleNodePinConnection()

MIXER_STATUS MMixerHandleNodePinConnection	(	IN PMIXER_CONTEXT	MixerContext,
		IN PKSTOPOLOGY_CONNECTION	Connection,
		IN OUT PTOPOLOGY	Topology
	)

Definition at line 441 of file topology.c.

{
    PPIN Pin;
    PTOPOLOGY_NODE Node;
 
    /* check type */
    if (Connection->FromNode == KSFILTER_NODE &&
        Connection->ToNode == KSFILTER_NODE)
    {
        /* Pin -> Pin direction */
 
        /* sanity checks */
        ASSERT(Topology->TopologyPinsCount > Connection->FromNodePin);
        ASSERT(Topology->TopologyPinsCount > Connection->ToNodePin);
 
        /* add connection */
        return MMixerAddPinToPinConnection(MixerContext,
                                           &Topology->TopologyPins[Connection->FromNodePin],
                                           &Topology->TopologyPins[Connection->ToNodePin]);
 
    }
    else if (Connection->FromNode == KSFILTER_NODE)
    {
        /* Pin -> Node direction */
 
        /* sanity checks */
        ASSERT(Topology->TopologyPinsCount > Connection->FromNodePin);
        ASSERT(Topology->TopologyNodesCount > Connection->ToNode);
        ASSERT(Connection->ToNode != KSFILTER_NODE);
 
        /* get pin */
        Pin = &Topology->TopologyPins[Connection->FromNodePin];
 
        /* get node */
        Node = &Topology->TopologyNodes[Connection->ToNode];
 
        /* initialize pin */
        Pin->PinId = Connection->FromNodePin;
 
        /* mark as visited */
        Pin->Visited = TRUE;
        Node->Visited = TRUE;
 
        /* add connection */
        return MMixerAddPinConnection(MixerContext, Pin, Node, TRUE);
    }
    else if (Connection->ToNode == KSFILTER_NODE)
    {
         /* Node -> Pin direction */
 
        /* sanity checks */
        ASSERT(Topology->TopologyPinsCount > Connection->ToNodePin);
        ASSERT(Topology->TopologyNodesCount > Connection->FromNode);
        ASSERT(Connection->FromNode != KSFILTER_NODE);
 
        /* get pin */
        Pin = &Topology->TopologyPins[Connection->ToNodePin];
 
        /* get node */
        Node = &Topology->TopologyNodes[Connection->FromNode];
 
        /* initialize pin */
        Pin->PinId = Connection->ToNodePin;
 
        /* mark as visited */
        Pin->Visited = TRUE;
        Node->Visited = TRUE;
 
        /* add connection */
        return MMixerAddPinConnection(MixerContext, Pin, Node, FALSE);
    }
    /* invalid call */
    ASSERT(0);
    return MM_STATUS_INVALID_PARAMETER;
}

Referenced by MMixerExploreTopology().

MMixerHandleNodeToNodeConnection()

MIXER_STATUS MMixerHandleNodeToNodeConnection	(	IN PMIXER_CONTEXT	MixerContext,
		IN PKSTOPOLOGY_CONNECTION	Connection,
		IN OUT PTOPOLOGY	Topology
	)

Definition at line 260 of file topology.c.

{
    PTOPOLOGY_NODE InNode, OutNode;
    PTOPOLOGY_NODE * NewNodes;
    PULONG NewLogicalPinNodeConnectedFrom;
    ULONG Count;
    ULONG LogicalPinId;
 
    /* sanity checks */
    ASSERT(Topology->TopologyNodesCount > Connection->ToNode);
    ASSERT(Topology->TopologyNodesCount > Connection->FromNode);
 
    /* get node */
    InNode = &Topology->TopologyNodes[Connection->FromNode];
    OutNode = &Topology->TopologyNodes[Connection->ToNode];
 
    /* get logical pin node id */
    LogicalPinId = Connection->ToNodePin;
 
    /* get existing count */
    Count = OutNode->NodeConnectedFromCount;
 
    /* allocate new nodes array */
    NewNodes = MixerContext->Alloc(sizeof(PTOPOLOGY_NODE) * (Count + 1));
 
    if (!NewNodes)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    /* allocate logical pin nodes array */
    NewLogicalPinNodeConnectedFrom = MixerContext->Alloc((Count + 1) * sizeof(ULONG));
    if (!NewLogicalPinNodeConnectedFrom)
    {
        /* out of memory */
        MixerContext->Free(NewNodes);
        return MM_STATUS_NO_MEMORY;
    }
 
    if (Count)
    {
        /* copy existing nodes */
        MixerContext->Copy(NewNodes, OutNode->NodeConnectedFrom, sizeof(PTOPOLOGY) * Count);
 
        /* copy existing logical pin node array */
        MixerContext->Copy(NewLogicalPinNodeConnectedFrom, OutNode->LogicalPinNodeConnectedFrom, sizeof(ULONG) * Count);
 
        /* release old nodes array */
        MixerContext->Free(OutNode->NodeConnectedFrom);
 
        /* release old logical pin node array */
        MixerContext->Free(OutNode->LogicalPinNodeConnectedFrom);
    }
 
    /* add new topology node */
    NewNodes[OutNode->NodeConnectedFromCount] = InNode;
 
    /* add logical node id */
    NewLogicalPinNodeConnectedFrom[OutNode->NodeConnectedFromCount] = LogicalPinId;
 
    /* replace old nodes array */
    OutNode->NodeConnectedFrom = NewNodes;
 
    /* replace old logical pin node array */
    OutNode->LogicalPinNodeConnectedFrom = NewLogicalPinNodeConnectedFrom;
 
    /* increment nodes count */
    OutNode->NodeConnectedFromCount++;
 
    /* get existing count */
    Count = InNode->NodeConnectedToCount;
 
    /* allocate new nodes array */
    NewNodes = MixerContext->Alloc(sizeof(PTOPOLOGY_NODE) * (Count + 1));
 
    if (!NewNodes)
    {
        /* out of memory */
        return MM_STATUS_NO_MEMORY;
    }
 
    if (Count)
    {
        /* copy existing nodes */
        MixerContext->Copy(NewNodes, InNode->NodeConnectedTo, sizeof(PTOPOLOGY) * Count);
 
        /* release old nodes array */
        MixerContext->Free(InNode->NodeConnectedTo);
    }
 
    /* add new topology node */
    NewNodes[InNode->NodeConnectedToCount] = OutNode;
 
    /* replace old nodes array */
    InNode->NodeConnectedTo = NewNodes;
 
    /* increment nodes count */
    InNode->NodeConnectedToCount++;
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerExploreTopology().

MMixerInitializeTopologyNodes()

VOID MMixerInitializeTopologyNodes	(	IN PMIXER_CONTEXT	MixerContext,
		IN PKSMULTIPLE_ITEM	NodeTypes,
		IN OUT PTOPOLOGY	Topology
	)

Definition at line 119 of file topology.c.

{
    ULONG Index;
    LPGUID Guids;
 
    /* sanity check */
    ASSERT(Topology->TopologyNodesCount == NodeTypes->Count);
 
    /* get topology node types */
    Guids = (LPGUID)(NodeTypes + 1);
 
    for(Index = 0; Index < Topology->TopologyNodesCount; Index++)
    {
        /* store node connection index */
        Topology->TopologyNodes[Index].NodeIndex = Index;
 
        /* store topology node type */
        MixerContext->Copy(&Topology->TopologyNodes[Index].NodeType, &Guids[Index], sizeof(GUID));
    }
}

Referenced by MMixerCreateTopology().

MMixerIsNodeConnectedToPin()

MIXER_STATUS MMixerIsNodeConnectedToPin	(	IN PMIXER_CONTEXT	MixerContext,
		IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex,
		IN ULONG	PinId,
		IN ULONG	bUpStream,
		OUT PULONG	bConnected
	)

Definition at line 1112 of file topology.c.

{
    MIXER_STATUS Status;
    ULONG Index, PinsCount;
    PULONG Pins;
 
    /* allocate pin index array */
    Status = MMixerAllocateTopologyPinArray(MixerContext, Topology, &Pins);
 
    if (Status != MM_STATUS_SUCCESS)
    {
        /* failed to allocate */
        return Status;
    }
 
    /* now get connected pins */
    PinsCount = 0;
    MMixerGetAllUpOrDownstreamPinsFromNodeIndex(MixerContext, Topology, NodeIndex, bUpStream, &PinsCount, Pins);
 
    /* set to false */
    *bConnected = FALSE;
 
    for(Index = 0; Index < PinsCount; Index++)
    {
        if (Pins[Index] == PinId)
        {
            /* pin is connected */
            *bConnected = TRUE;
            break;
        }
    }
 
    /* free pin index array */
    MixerContext->Free(Pins);
 
    /* done */
    return MM_STATUS_SUCCESS;
}

Referenced by MMixerAddMixerSourceLines().

MMixerIsNodeTerminator()

VOID MMixerIsNodeTerminator	(	IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex,
		OUT ULONG *	bTerminator
	)

Definition at line 1077 of file topology.c.

{
    /* sanity check */
    ASSERT(NodeIndex < Topology->TopologyNodesCount);
 
    /* check if node has multiple parents */
    if (Topology->TopologyNodes[NodeIndex].NodeConnectedFromCount > 1)
    {
        /* node is connected to multiple other nodes */
        *bTerminator = TRUE;
 
        /* done */
        return;
    }
 
    /* check if node is mux / sum node */
    if (IsEqualGUIDAligned(&Topology->TopologyNodes[NodeIndex].NodeType, &KSNODETYPE_SUM) ||
        IsEqualGUIDAligned(&Topology->TopologyNodes[NodeIndex].NodeType, &KSNODETYPE_MUX))
    {
        /* classic terminator */
        *bTerminator = TRUE;
 
        /* done */
        return;
 
    }
 
    /* node is not a terminator */
    *bTerminator = FALSE;
}

Referenced by MMixerCountMixerControls().

MMixerIsTopologyNodeReserved()

VOID MMixerIsTopologyNodeReserved	(	IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex,
		OUT PULONG	bReserved
	)

Definition at line 1232 of file topology.c.

{
    /* sanity check */
    ASSERT(NodeIndex < Topology->TopologyNodesCount);
 
    /* get reserved status */
    *bReserved = Topology->TopologyNodes[NodeIndex].Reserved;
}

Referenced by MMixerAddMixerControlsToMixerLineByNodeIndexArray().

MMixerIsTopologyPinReserved()

VOID MMixerIsTopologyPinReserved	(	IN PTOPOLOGY	Topology,
		IN ULONG	PinId,
		OUT PULONG	bReserved
	)

Definition at line 1207 of file topology.c.

{
    /* sanity check */
    ASSERT(PinId < Topology->TopologyPinsCount);
 
    /* get reserved status */
    *bReserved = Topology->TopologyPins[PinId].Reserved;
}

Referenced by MMixerHandleAlternativeMixers().

MMixerPrintTopology()

VOID MMixerPrintTopology

(

PTOPOLOGY

Topology

)

Definition at line 15 of file topology.c.

{
    ULONG Index, SubIndex;
 
    DPRINT("Num Pins %lu NumNodes %lu\n", Topology->TopologyPinsCount, Topology->TopologyNodesCount);
 
    for(Index = 0; Index < Topology->TopologyPinsCount; Index++)
    {
        DPRINT("PinId %lu NodesConnectedFromCount %lu NodesConnectedToCount %lu Visited %lu\n", Topology->TopologyPins[Index].PinId,
            Topology->TopologyPins[Index].NodesConnectedFromCount, Topology->TopologyPins[Index].NodesConnectedToCount, Topology->TopologyPins[Index].Visited);
 
        for(SubIndex = 0; SubIndex < Topology->TopologyPins[Index].NodesConnectedFromCount; SubIndex++)
            DPRINT("NodesConnectedFrom Index %lu NodeId %lu\n", SubIndex, Topology->TopologyPins[Index].NodesConnectedFrom[SubIndex]->NodeIndex);
 
        for(SubIndex = 0; SubIndex < Topology->TopologyPins[Index].NodesConnectedToCount; SubIndex++)
            DPRINT("NodesConnectedTo Index %lu NodeId %lu\n", SubIndex, Topology->TopologyPins[Index].NodesConnectedTo[SubIndex]->NodeIndex);
    }
 
    for(Index = 0; Index < Topology->TopologyNodesCount; Index++)
    {
        DPRINT("NodeId %lu NodesConnectedFromCount %lu NodesConnectedToCount %lu Visited %lu PinConnectedFromCount %lu PinConnectedToCount %lu\n", Topology->TopologyNodes[Index].NodeIndex,
            Topology->TopologyNodes[Index].NodeConnectedFromCount, Topology->TopologyNodes[Index].NodeConnectedToCount, Topology->TopologyNodes[Index].Visited,
            Topology->TopologyNodes[Index].PinConnectedFromCount, Topology->TopologyNodes[Index].PinConnectedToCount);
    }
}

MMixerResetTopologyVisitStatus()

VOID MMixerResetTopologyVisitStatus

(

IN OUT PTOPOLOGY

Topology

)

Definition at line 100 of file topology.c.

{
    ULONG Index;
 
    for(Index = 0; Index < Topology->TopologyNodesCount; Index++)
    {
        /* reset visited status */
        Topology->TopologyNodes[Index].Visited = FALSE;
    }
 
    for(Index = 0; Index < Topology->TopologyPinsCount; Index++)
    {
        /* reset visited status */
        Topology->TopologyPins[Index].Visited = FALSE;
    }
}

Referenced by MMixerGetAllUpOrDownstreamNodesFromNodeIndex(), MMixerGetAllUpOrDownstreamNodesFromPinIndex(), MMixerGetAllUpOrDownstreamPinsFromNodeIndex(), and MMixerGetAllUpOrDownstreamPinsFromPinIndex().

MMixerSetTopologyNodeReserved()

VOID MMixerSetTopologyNodeReserved	(	IN PTOPOLOGY	Topology,
		IN ULONG	NodeIndex
	)

Definition at line 1220 of file topology.c.

{
    /* sanity check */
    ASSERT(NodeIndex < Topology->TopologyNodesCount);
 
    /* set reserved */
    Topology->TopologyNodes[NodeIndex].Reserved = TRUE;
}

Referenced by MMixerAddMixerControlsToMixerLineByNodeIndexArray().

MMixerSetTopologyPinReserved()

VOID MMixerSetTopologyPinReserved	(	IN PTOPOLOGY	Topology,
		IN ULONG	PinId
	)

Definition at line 1195 of file topology.c.

{
    /* sanity check */
    ASSERT(PinId < Topology->TopologyPinsCount);
 
    /* set reserved */
    Topology->TopologyPins[PinId].Reserved = TRUE;
}

Referenced by MMixerAddMixerSourceLines(), MMixerHandleAlternativeMixers(), MMixerHandlePhysicalConnection(), MMixerHandleTopologyFilter(), and MMixerInitializeFilter().