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[MMIXER]

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- Add more error checks
- Fix a bug MMixerGetControlsFromPinByConnectionIndex which pre-early stopped the enumeration of mixer controls
- Only add guids which can be later be resolved to mixer control
- Check if no a topology connection has no links connected

svn path=/trunk/; revision=44559
This commit is contained in:
Johannes Anderwald 2009-12-13 11:32:44 +00:00
parent 5ed5d97905
commit a20e1844ce
2 changed files with 35 additions and 11 deletions
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39
reactos/lib/drivers/sound/mmixer/controls.c
View file

@ -96,6 +96,12 @@ MMixerGetControlsFromPinByConnectionIndex(
else
NodeIndex = CurConnection->ToNode;
if (NodeIndex > NodeTypes->Count)
{
// reached end of pin connection
return MM_STATUS_SUCCESS;
}
/* get target node type of current connection */
NodeType = MMixerGetNodeType(NodeTypes, NodeIndex);
@ -124,7 +130,7 @@ MMixerGetControlsFromPinByConnectionIndex(
Status = MMixerGetNodeIndexes(MixerContext, NodeConnections, NodeIndex, TRUE, TRUE, &NodeConnectionCount, &NodeConnection);
}
if (Status != MM_STATUS_SUCCESS)
if (Status == MM_STATUS_SUCCESS)
{
for(Index = 0; Index < NodeConnectionCount; Index++)
{
@ -332,6 +338,7 @@ MMixerAddMixerSourceLine(
LPWSTR PinName;
GUID NodeType;
ULONG BytesReturned, ControlCount, Index;
LPGUID Node;
PULONG Nodes;
if (!bTargetPin)
@ -414,8 +421,14 @@ MMixerAddMixerSourceLine(
{
if (Nodes[Index])
{
// found a node
ControlCount++;
// get node type
Node = MMixerGetNodeType(NodeTypes, Index);
if (MMixerGetControlTypeFromTopologyNode(Node))
{
// found a node which can be resolved to a type
ControlCount++;
}
}
}
@ -457,14 +470,20 @@ MMixerAddMixerSourceLine(
{
if (Nodes[Index])
{
/* store the node index for retrieving / setting details */
SrcLine->NodeIds[ControlCount] = Index;
// get node type
Node = MMixerGetNodeType(NodeTypes, Index);
Status = MMixerAddMixerControl(MixerContext, MixerInfo, hDevice, NodeTypes, Index, SrcLine, &SrcLine->LineControls[ControlCount]);
if (Status == MM_STATUS_SUCCESS)
if (MMixerGetControlTypeFromTopologyNode(Node))
{
/* increment control count on success */
ControlCount++;
/* store the node index for retrieving / setting details */
SrcLine->NodeIds[ControlCount] = Index;
Status = MMixerAddMixerControl(MixerContext, MixerInfo, hDevice, NodeTypes, Index, SrcLine, &SrcLine->LineControls[ControlCount]);
if (Status == MM_STATUS_SUCCESS)
{
/* increment control count on success */
ControlCount++;
}
}
}
}
@ -902,8 +921,6 @@ MMixerInitializeFilter(
return Status;
}
RtlZeroMemory(Pins, sizeof(ULONG) * PinCount);
// now get the target pins of the ADC / DAC node
Status = MMixerGetTargetPins(MixerContext, NodeTypes, NodeConnections, NodeIndex, bInputMixer, Pins, PinCount);

7
reactos/lib/drivers/sound/mmixer/sup.c
View file

@ -251,6 +251,13 @@ MMixerGetNodeIndexes(
Connection++;
}
if (!Count)
{
*NodeReferenceCount = 0;
*NodeReference = NULL;
return MM_STATUS_SUCCESS;
}
ASSERT(Count != 0);
/* now allocate node index array */