reactos/sdk/lib/drivers/sound/mmixer/controls.c

1905 lines
62 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Kernel Streaming
* FILE: lib/drivers/sound/mmixer/controls.c
* PURPOSE: Mixer Control Iteration Functions
* PROGRAMMER: Johannes Anderwald
*/
#include "precomp.h"
#define YDEBUG
#include <debug.h>
const GUID KSNODETYPE_DESKTOP_MICROPHONE = {0xDFF21BE2, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_LEGACY_AUDIO_CONNECTOR = {0xDFF21FE4, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_TELEPHONE = {0xDFF21EE2, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_PHONE_LINE = {0xDFF21EE1, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_DOWN_LINE_PHONE = {0xDFF21EE3, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_DESKTOP_SPEAKER = {0xDFF21CE4, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_ROOM_SPEAKER = {0xDFF21CE5, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_COMMUNICATION_SPEAKER = {0xDFF21CE6, 0xF70F, 0x11D0, {0xB9,0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_HEADPHONES = {0xDFF21CE2, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_HEAD_MOUNTED_DISPLAY_AUDIO = {0xDFF21CE3, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_MICROPHONE = {0xDFF21BE1, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9,0x22, 0x31, 0x96}};
const GUID KSCATEGORY_AUDIO = {0x6994AD04L, 0x93EF, 0x11D0, {0xA3, 0xCC, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_SPDIF_INTERFACE = {0xDFF21FE5, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_ANALOG_CONNECTOR = {0xDFF21FE1, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_SPEAKER = {0xDFF21CE1, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_CD_PLAYER = {0xDFF220E3, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_SYNTHESIZER = {0xDFF220F3, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
const GUID KSNODETYPE_LINE_CONNECTOR = {0xDFF21FE3, 0xF70F, 0x11D0, {0xB9, 0x17, 0x00, 0xA0,0xC9, 0x22, 0x31, 0x96}};
const GUID PINNAME_VIDEO_CAPTURE = {0xfb6c4281, 0x353, 0x11d1, {0x90, 0x5f, 0x0, 0x0, 0xc0, 0xcc, 0x16, 0xba}};
MIXER_STATUS
MMixerAddMixerControl(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN PTOPOLOGY Topology,
IN ULONG NodeIndex,
IN LPMIXERLINE_EXT MixerLine,
IN ULONG MaxChannels)
{
LPGUID NodeType;
KSP_NODE Node;
ULONG BytesReturned;
MIXER_STATUS Status;
LPWSTR Name;
LPMIXERCONTROL_EXT MixerControl;
/* allocate mixer control */
MixerControl = MixerContext->Alloc(sizeof(MIXERCONTROL_EXT));
if (!MixerControl)
{
/* no memory */
return MM_STATUS_NO_MEMORY;
}
/* initialize mixer control */
MixerControl->hDevice = hMixer;
MixerControl->NodeID = NodeIndex;
MixerControl->ExtraData = NULL;
MixerControl->Control.cbStruct = sizeof(MIXERCONTROLW);
MixerControl->Control.dwControlID = MixerInfo->ControlId;
/* get node type */
NodeType = MMixerGetNodeTypeFromTopology(Topology, NodeIndex);
/* store control type */
MixerControl->Control.dwControlType = MMixerGetControlTypeFromTopologyNode(NodeType);
MixerControl->Control.fdwControl = (MaxChannels > 1 ? 0 : MIXERCONTROL_CONTROLF_UNIFORM);
MixerControl->Control.cMultipleItems = 0;
/* setup request to retrieve name */
Node.NodeId = NodeIndex;
Node.Property.Id = KSPROPERTY_TOPOLOGY_NAME;
Node.Property.Flags = KSPROPERTY_TYPE_GET;
Node.Property.Set = KSPROPSETID_Topology;
Node.Reserved = 0;
/* get node name size */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Node, sizeof(KSP_NODE), NULL, 0, &BytesReturned);
if (Status == MM_STATUS_MORE_ENTRIES)
{
ASSERT(BytesReturned != 0);
Name = (LPWSTR)MixerContext->Alloc(BytesReturned);
if (!Name)
{
/* not enough memory */
return MM_STATUS_NO_MEMORY;
}
/* get node name */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Node, sizeof(KSP_NODE), (LPVOID)Name, BytesReturned, &BytesReturned);
if (Status == MM_STATUS_SUCCESS)
{
MixerContext->Copy(MixerControl->Control.szShortName, Name, (min(MIXER_SHORT_NAME_CHARS, wcslen(Name)+1)) * sizeof(WCHAR));
MixerControl->Control.szShortName[MIXER_SHORT_NAME_CHARS-1] = L'\0';
MixerContext->Copy(MixerControl->Control.szName, Name, (min(MIXER_LONG_NAME_CHARS, wcslen(Name)+1)) * sizeof(WCHAR));
MixerControl->Control.szName[MIXER_LONG_NAME_CHARS-1] = L'\0';
}
/* free name buffer */
MixerContext->Free(Name);
}
/* increment control count */
MixerInfo->ControlId++;
/* insert control */
InsertTailList(&MixerLine->ControlsList, &MixerControl->Entry);
if (MixerControl->Control.dwControlType == MIXERCONTROL_CONTROLTYPE_MUX)
{
ULONG NodesCount;
PULONG Nodes;
/* allocate topology nodes array */
Status = MMixerAllocateTopologyNodeArray(MixerContext, Topology, &Nodes);
if (Status != MM_STATUS_SUCCESS)
{
/* out of memory */
return STATUS_NO_MEMORY;
}
/* get connected node count */
MMixerGetNextNodesFromNodeIndex(MixerContext, Topology, NodeIndex, TRUE, &NodesCount, Nodes);
/* TODO */
MixerContext->Free(Nodes);
/* setup mux bounds */
MixerControl->Control.Bounds.dwMinimum = 0;
MixerControl->Control.Bounds.dwMaximum = NodesCount - 1;
MixerControl->Control.Metrics.dwReserved[0] = NodesCount;
MixerControl->Control.cMultipleItems = NodesCount;
MixerControl->Control.fdwControl |= MIXERCONTROL_CONTROLF_UNIFORM | MIXERCONTROL_CONTROLF_MULTIPLE;
}
else if (MixerControl->Control.dwControlType == MIXERCONTROL_CONTROLTYPE_MUTE)
{
MixerControl->Control.Bounds.dwMinimum = 0;
MixerControl->Control.Bounds.dwMaximum = 1;
}
else if (MixerControl->Control.dwControlType == MIXERCONTROL_CONTROLTYPE_ONOFF)
{
/* only needs to set bounds */
MixerControl->Control.Bounds.dwMinimum = 0;
MixerControl->Control.Bounds.dwMaximum = 1;
}
else if (MixerControl->Control.dwControlType == MIXERCONTROL_CONTROLTYPE_VOLUME)
{
KSNODEPROPERTY_AUDIO_CHANNEL Property;
ULONG Length;
PKSPROPERTY_DESCRIPTION Desc;
PKSPROPERTY_MEMBERSHEADER Members;
PKSPROPERTY_STEPPING_LONG Range;
MixerControl->Control.Bounds.dwMinimum = 0;
MixerControl->Control.Bounds.dwMaximum = 0xFFFF;
MixerControl->Control.Metrics.cSteps = 0xC0; /* FIXME */
Length = sizeof(KSPROPERTY_DESCRIPTION) + sizeof(KSPROPERTY_MEMBERSHEADER) + sizeof(KSPROPERTY_STEPPING_LONG);
Desc = (PKSPROPERTY_DESCRIPTION)MixerContext->Alloc(Length);
ASSERT(Desc);
/* setup the request */
RtlZeroMemory(&Property, sizeof(KSNODEPROPERTY_AUDIO_CHANNEL));
Property.NodeProperty.NodeId = NodeIndex;
Property.NodeProperty.Property.Id = KSPROPERTY_AUDIO_VOLUMELEVEL;
Property.NodeProperty.Property.Flags = KSPROPERTY_TYPE_BASICSUPPORT | KSPROPERTY_TYPE_TOPOLOGY;
Property.NodeProperty.Property.Set = KSPROPSETID_Audio;
/* get node volume level info */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSNODEPROPERTY_AUDIO_CHANNEL), Desc, Length, &BytesReturned);
if (Status == MM_STATUS_SUCCESS)
{
LPMIXERVOLUME_DATA VolumeData;
ULONG Steps, MaxRange, Index;
LONG Value;
Members = (PKSPROPERTY_MEMBERSHEADER)(Desc + 1);
Range = (PKSPROPERTY_STEPPING_LONG)(Members + 1);
DPRINT("NodeIndex %u Range Min %d Max %d Steps %x UMin %x UMax %x\n", NodeIndex, Range->Bounds.SignedMinimum, Range->Bounds.SignedMaximum, Range->SteppingDelta, Range->Bounds.UnsignedMinimum, Range->Bounds.UnsignedMaximum);
MaxRange = Range->Bounds.UnsignedMaximum - Range->Bounds.UnsignedMinimum;
if (MaxRange)
{
ASSERT(MaxRange);
VolumeData = (LPMIXERVOLUME_DATA)MixerContext->Alloc(sizeof(MIXERVOLUME_DATA));
if (!VolumeData)
return MM_STATUS_NO_MEMORY;
Steps = MaxRange / Range->SteppingDelta + 1;
/* store mixer control info there */
VolumeData->Header.dwControlID = MixerControl->Control.dwControlID;
VolumeData->SignedMaximum = Range->Bounds.SignedMaximum;
VolumeData->SignedMinimum = Range->Bounds.SignedMinimum;
VolumeData->SteppingDelta = Range->SteppingDelta;
VolumeData->ValuesCount = Steps;
VolumeData->InputSteppingDelta = 0x10000 / Steps;
VolumeData->Values = (PLONG)MixerContext->Alloc(sizeof(LONG) * Steps);
if (!VolumeData->Values)
{
MixerContext->Free(Desc);
MixerContext->Free(VolumeData);
return MM_STATUS_NO_MEMORY;
}
Value = Range->Bounds.SignedMinimum;
for(Index = 0; Index < Steps; Index++)
{
VolumeData->Values[Index] = Value;
Value += Range->SteppingDelta;
}
MixerControl->ExtraData = VolumeData;
}
}
MixerContext->Free(Desc);
}
DPRINT("Status %x Name %S\n", Status, MixerControl->Control.szName);
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerCreateDestinationLine(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_INFO MixerInfo,
IN ULONG bInputMixer,
IN LPWSTR LineName)
{
LPMIXERLINE_EXT DestinationLine;
/* allocate a mixer destination line */
DestinationLine = (LPMIXERLINE_EXT) MixerContext->Alloc(sizeof(MIXERLINE_EXT));
if (!MixerInfo)
{
/* no memory */
return MM_STATUS_NO_MEMORY;
}
/* initialize mixer destination line */
DestinationLine->Line.cbStruct = sizeof(MIXERLINEW);
DestinationLine->Line.cChannels = 2; /* FIXME */
DestinationLine->Line.cConnections = 0;
DestinationLine->Line.cControls = 0;
DestinationLine->Line.dwComponentType = (bInputMixer == 0 ? MIXERLINE_COMPONENTTYPE_DST_SPEAKERS : MIXERLINE_COMPONENTTYPE_DST_WAVEIN);
DestinationLine->Line.dwDestination = MixerInfo->MixCaps.cDestinations;
DestinationLine->Line.dwLineID = MixerInfo->MixCaps.cDestinations + DESTINATION_LINE;
DestinationLine->Line.dwSource = MAXULONG;
DestinationLine->Line.dwUser = 0;
DestinationLine->Line.fdwLine = MIXERLINE_LINEF_ACTIVE;
if (LineName)
{
MixerContext->Copy(DestinationLine->Line.szShortName, LineName, (min(MIXER_SHORT_NAME_CHARS, wcslen(LineName)+1)) * sizeof(WCHAR));
DestinationLine->Line.szShortName[MIXER_SHORT_NAME_CHARS-1] = L'\0';
MixerContext->Copy(DestinationLine->Line.szName, LineName, (min(MIXER_LONG_NAME_CHARS, wcslen(LineName)+1)) * sizeof(WCHAR));
DestinationLine->Line.szName[MIXER_LONG_NAME_CHARS-1] = L'\0';
}
DestinationLine->Line.Target.dwType = (bInputMixer == 0 ? MIXERLINE_TARGETTYPE_WAVEOUT : MIXERLINE_TARGETTYPE_WAVEIN);
DestinationLine->Line.Target.dwDeviceID = 0; //FIXME
DestinationLine->Line.Target.wMid = MixerInfo->MixCaps.wMid;
DestinationLine->Line.Target.wPid = MixerInfo->MixCaps.wPid;
DestinationLine->Line.Target.vDriverVersion = MixerInfo->MixCaps.vDriverVersion;
ASSERT(MixerInfo->MixCaps.szPname[MAXPNAMELEN-1] == 0);
wcscpy(DestinationLine->Line.Target.szPname, MixerInfo->MixCaps.szPname);
/* initialize extra line */
InitializeListHead(&DestinationLine->ControlsList);
/* insert into mixer info */
InsertTailList(&MixerInfo->LineList, &DestinationLine->Entry);
/* increment destination count */
MixerInfo->MixCaps.cDestinations++;
/* done */
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerGetPinName(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN ULONG PinId,
IN OUT LPWSTR * OutBuffer)
{
KSP_PIN Pin;
ULONG BytesReturned;
LPWSTR Buffer;
MIXER_STATUS Status;
/* prepare pin */
Pin.PinId = PinId;
Pin.Reserved = 0;
Pin.Property.Flags = KSPROPERTY_TYPE_GET;
Pin.Property.Set = KSPROPSETID_Pin;
Pin.Property.Id = KSPROPERTY_PIN_NAME;
/* try get pin name size */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSP_PIN), NULL, 0, &BytesReturned);
/* check if buffer overflowed */
if (Status == MM_STATUS_MORE_ENTRIES)
{
/* allocate buffer */
Buffer = (LPWSTR)MixerContext->Alloc(BytesReturned);
if (!Buffer)
{
/* out of memory */
return MM_STATUS_NO_MEMORY;
}
/* try get pin name */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSP_PIN), (PVOID)Buffer, BytesReturned, &BytesReturned);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get pin name */
MixerContext->Free((PVOID)Buffer);
return Status;
}
/* successfully obtained pin name */
*OutBuffer = Buffer;
return MM_STATUS_SUCCESS;
}
/* failed to get pin name */
return Status;
}
MIXER_STATUS
MMixerBuildMixerDestinationLine(
IN PMIXER_CONTEXT MixerContext,
IN OUT LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN ULONG PinId,
IN ULONG bInput)
{
LPWSTR PinName;
MIXER_STATUS Status;
/* try get pin name */
Status = MMixerGetPinName(MixerContext, MixerInfo, hMixer, PinId, &PinName);
if (Status == MM_STATUS_SUCCESS)
{
/* create mixer destination line */
Status = MMixerCreateDestinationLine(MixerContext, MixerInfo, bInput, PinName);
/* free pin name */
MixerContext->Free(PinName);
}
else
{
/* create mixer destination line unlocalized */
Status = MMixerCreateDestinationLine(MixerContext, MixerInfo, bInput, L"No Name");
}
return Status;
}
MIXER_STATUS
MMixerBuildTopology(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_DATA MixerData,
OUT PTOPOLOGY * OutTopology)
{
ULONG PinsCount;
PKSMULTIPLE_ITEM NodeTypes = NULL;
PKSMULTIPLE_ITEM NodeConnections = NULL;
MIXER_STATUS Status;
if (MixerData->Topology)
{
/* re-use existing topology */
*OutTopology = MixerData->Topology;
return MM_STATUS_SUCCESS;
}
/* get connected filter pin count */
PinsCount = MMixerGetFilterPinCount(MixerContext, MixerData->hDevice);
if (!PinsCount)
{
/* referenced filter does not have any pins */
return MM_STATUS_UNSUCCESSFUL;
}
/* get topology node types */
Status = MMixerGetFilterTopologyProperty(MixerContext, MixerData->hDevice, KSPROPERTY_TOPOLOGY_NODES, &NodeTypes);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get topology node types */
return Status;
}
/* get topology connections */
Status = MMixerGetFilterTopologyProperty(MixerContext, MixerData->hDevice, KSPROPERTY_TOPOLOGY_CONNECTIONS, &NodeConnections);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get topology connections */
MixerContext->Free(NodeTypes);
return Status;
}
/* create a topology */
Status = MMixerCreateTopology(MixerContext, PinsCount, NodeConnections, NodeTypes, OutTopology);
/* free node types & connections */
MixerContext->Free(NodeConnections);
MixerContext->Free(NodeTypes);
if (Status == MM_STATUS_SUCCESS)
{
/* store topology object */
MixerData->Topology = *OutTopology;
}
/* done */
return Status;
}
MIXER_STATUS
MMixerCountMixerControls(
IN PMIXER_CONTEXT MixerContext,
IN PTOPOLOGY Topology,
IN ULONG PinId,
IN ULONG bInputMixer,
IN ULONG bUpStream,
OUT PULONG OutNodesCount,
OUT PULONG OutNodes,
OUT PULONG OutLineTerminator)
{
PULONG Nodes;
ULONG NodesCount, NodeIndex, Count, bTerminator;
MIXER_STATUS Status;
/* allocate an array to store all nodes which are upstream of this pin */
Status = MMixerAllocateTopologyNodeArray(MixerContext, Topology, &Nodes);
if (Status != MM_STATUS_SUCCESS)
{
/* out of memory */
return STATUS_NO_MEMORY;
}
/* mark result array as zero */
*OutNodesCount = 0;
/* get next nodes */
MMixerGetNextNodesFromPinIndex(MixerContext, Topology, PinId, bUpStream, &NodesCount, Nodes);
if (NodesCount == 0)
{
/* a pin which is not connected from any node
* a) it is a topology bug (driver bug)
* b) the request is from an alternative mixer
alternative mixer code scans all pins which have not been used and tries to build lines
*/
DPRINT1("MMixerCountMixerControls PinId %lu is not connected by any node\n", PinId);
MMixerPrintTopology(Topology);
return MM_STATUS_UNSUCCESSFUL;
}
/* assume no topology split before getting line terminator */
ASSERT(NodesCount == 1);
/* get first node */
NodeIndex = Nodes[0];
Count = 0;
do
{
/* check if the node is a terminator */
MMixerIsNodeTerminator(Topology, NodeIndex, &bTerminator);
if (bTerminator)
{
/* found terminator */
if (bInputMixer)
{
/* add mux source for source destination line */
OutNodes[Count] = NodeIndex;
Count++;
}
break;
}
/* store node id */
OutNodes[Count] = NodeIndex;
/* increment node count */
Count++;
/* get next nodes upstream */
MMixerGetNextNodesFromNodeIndex(MixerContext, Topology, NodeIndex, bUpStream, &NodesCount, Nodes);
if (NodesCount != 1)
{
DPRINT("PinId %lu bInputMixer %lu bUpStream %lu NodeIndex %lu is not connected", PinId, bInputMixer, bUpStream, NodeIndex);
break;
}
ASSERT(NodesCount == 1);
/* use first index */
NodeIndex = Nodes[0];
}while(TRUE);
/* free node index */
MixerContext->Free(Nodes);
/* store nodes count */
*OutNodesCount = Count;
/* store line terminator */
*OutLineTerminator = NodeIndex;
/* done */
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerGetChannelCountEnhanced(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN ULONG NodeId,
OUT PULONG MaxChannels)
{
KSPROPERTY_DESCRIPTION Description;
PKSPROPERTY_DESCRIPTION NewDescription;
PKSPROPERTY_MEMBERSHEADER Header;
ULONG BytesReturned;
KSP_NODE Request;
MIXER_STATUS Status;
/* try #1 obtain it via description */
Request.NodeId = NodeId;
Request.Reserved = 0;
Request.Property.Set = KSPROPSETID_Audio;
Request.Property.Flags = KSPROPERTY_TYPE_BASICSUPPORT | KSPROPERTY_TYPE_TOPOLOGY;
Request.Property.Id = KSPROPERTY_AUDIO_VOLUMELEVEL;
/* get description */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Request, sizeof(KSP_NODE), (PVOID)&Description, sizeof(KSPROPERTY_DESCRIPTION), &BytesReturned);
if (Status == MM_STATUS_SUCCESS)
{
if (Description.DescriptionSize >= sizeof(KSPROPERTY_DESCRIPTION) + sizeof(KSPROPERTY_MEMBERSHEADER) && (Description.MembersListCount > 0))
{
/* allocate new description */
NewDescription = MixerContext->Alloc(Description.DescriptionSize);
if (!NewDescription)
{
/* not enough memory */
return MM_STATUS_NO_MEMORY;
}
/* get description */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Request, sizeof(KSP_NODE), (PVOID)NewDescription, Description.DescriptionSize, &BytesReturned);
if (Status == MM_STATUS_SUCCESS)
{
/* get header */
Header = (PKSPROPERTY_MEMBERSHEADER)(NewDescription + 1);
if (Header->Flags & KSPROPERTY_MEMBER_FLAG_BASICSUPPORT_MULTICHANNEL)
{
/* found enhanced flag */
ASSERT(Header->MembersCount > 1);
/* store channel count */
*MaxChannels = Header->MembersCount;
/* free description */
MixerContext->Free(NewDescription);
/* done */
return MM_STATUS_SUCCESS;
}
}
/* free description */
MixerContext->Free(NewDescription);
}
}
/* failed to get channel count enhanced */
return MM_STATUS_UNSUCCESSFUL;
}
VOID
MMixerGetChannelCountLegacy(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN ULONG NodeId,
OUT PULONG MaxChannels)
{
ULONG BytesReturned;
MIXER_STATUS Status;
KSNODEPROPERTY_AUDIO_CHANNEL Channel;
LONG Volume;
/* setup request */
Channel.Reserved = 0;
Channel.NodeProperty.NodeId = NodeId;
Channel.NodeProperty.Reserved = 0;
Channel.NodeProperty.Property.Flags = KSPROPERTY_TYPE_GET | KSPROPERTY_TYPE_TOPOLOGY;
Channel.NodeProperty.Property.Set = KSPROPSETID_Audio;
Channel.Channel = 0;
Channel.NodeProperty.Property.Id = KSPROPERTY_AUDIO_VOLUMELEVEL;
do
{
/* get channel volume */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Channel, sizeof(KSNODEPROPERTY_AUDIO_CHANNEL), (PVOID)&Volume, sizeof(LONG), &BytesReturned);
if (Status != MM_STATUS_SUCCESS)
break;
/* increment channel count */
Channel.Channel++;
}while(TRUE);
/* store channel count */
*MaxChannels = Channel.Channel;
}
VOID
MMixerGetMaxChannelsForNode(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN ULONG NodeId,
OUT PULONG MaxChannels)
{
MIXER_STATUS Status;
/* try to get it enhanced */
Status = MMixerGetChannelCountEnhanced(MixerContext, MixerInfo, hMixer, NodeId, MaxChannels);
if (Status != MM_STATUS_SUCCESS)
{
/* get it old-fashioned way */
MMixerGetChannelCountLegacy(MixerContext, MixerInfo, hMixer, NodeId, MaxChannels);
}
}
MIXER_STATUS
MMixerAddMixerControlsToMixerLineByNodeIndexArray(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN PTOPOLOGY Topology,
IN OUT LPMIXERLINE_EXT DstLine,
IN ULONG NodesCount,
IN PULONG Nodes)
{
ULONG Index, Count, bReserved;
MIXER_STATUS Status;
LPGUID NodeType;
ULONG MaxChannels;
/* initialize control count */
Count = 0;
for(Index = 0; Index < NodesCount; Index++)
{
/* check if the node has already been reserved to a line */
MMixerIsTopologyNodeReserved(Topology, Nodes[Index], &bReserved);
#if 0 /* MS lies */
if (bReserved)
{
/* node is already used, skip it */
continue;
}
#endif
/* set node status as used */
MMixerSetTopologyNodeReserved(Topology, Nodes[Index]);
/* query node type */
NodeType = MMixerGetNodeTypeFromTopology(Topology, Nodes[Index]);
if (IsEqualGUIDAligned(NodeType, &KSNODETYPE_VOLUME))
{
/* calculate maximum channel count for node */
MMixerGetMaxChannelsForNode(MixerContext, MixerInfo, hMixer, Nodes[Index], &MaxChannels);
DPRINT("NodeId %lu MaxChannels %lu Line %S Id %lu\n", Nodes[Index], MaxChannels, DstLine->Line.szName, DstLine->Line.dwLineID);
/* calculate maximum channels */
DstLine->Line.cChannels = min(DstLine->Line.cChannels, MaxChannels);
}
else
{
/* use default of one channel */
MaxChannels = 1;
}
/* now add the mixer control */
Status = MMixerAddMixerControl(MixerContext, MixerInfo, hMixer, Topology, Nodes[Index], DstLine, MaxChannels);
if (Status == MM_STATUS_SUCCESS)
{
/* increment control count */
Count++;
}
}
/* store control count */
DstLine->Line.cControls = Count;
/* done */
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerGetComponentAndTargetType(
IN PMIXER_CONTEXT MixerContext,
IN OUT LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN ULONG PinId,
OUT PULONG ComponentType,
OUT PULONG TargetType)
{
KSPIN_DATAFLOW DataFlow;
KSPIN_COMMUNICATION Communication;
MIXER_STATUS Status;
KSP_PIN Request;
ULONG BytesReturned;
GUID Guid;
BOOLEAN BridgePin = FALSE;
PKSPIN_PHYSICALCONNECTION Connection;
/* first dataflow type */
Status = MMixerGetPinDataFlowAndCommunication(MixerContext, hMixer, PinId, &DataFlow, &Communication);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get dataflow */
return Status;
}
/* now get pin category guid */
Request.PinId = PinId;
Request.Reserved = 0;
Request.Property.Flags = KSPROPERTY_TYPE_GET;
Request.Property.Set = KSPROPSETID_Pin;
Request.Property.Id = KSPROPERTY_PIN_CATEGORY;
/* get pin category */
Status = MixerContext->Control(hMixer, IOCTL_KS_PROPERTY, (PVOID)&Request, sizeof(KSP_PIN), &Guid, sizeof(GUID), &BytesReturned);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get dataflow */
return Status;
}
/* check if it has a physical connection */
Status = MMixerGetPhysicalConnection(MixerContext, hMixer, PinId, &Connection);
if (Status == MM_STATUS_SUCCESS)
{
/* pin is a brige pin */
BridgePin = TRUE;
/* free physical connection */
MixerContext->Free(Connection);
}
if (DataFlow == KSPIN_DATAFLOW_IN)
{
if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_MICROPHONE) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_DESKTOP_MICROPHONE))
{
/* type microphone */
*TargetType = MIXERLINE_TARGETTYPE_WAVEIN;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_LEGACY_AUDIO_CONNECTOR) ||
IsEqualGUIDAligned(&Guid, &KSCATEGORY_AUDIO) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_SPEAKER))
{
/* type waveout */
*TargetType = MIXERLINE_TARGETTYPE_WAVEOUT;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_CD_PLAYER))
{
/* type cd player */
*TargetType = MIXERLINE_TARGETTYPE_UNDEFINED;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_COMPACTDISC;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_SYNTHESIZER))
{
/* type synthesizer */
*TargetType = MIXERLINE_TARGETTYPE_MIDIOUT;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_SYNTHESIZER;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_LINE_CONNECTOR))
{
/* type line */
*TargetType = MIXERLINE_TARGETTYPE_UNDEFINED;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_LINE;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_TELEPHONE) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_PHONE_LINE) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_DOWN_LINE_PHONE))
{
/* type telephone */
*TargetType = MIXERLINE_TARGETTYPE_UNDEFINED;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_TELEPHONE;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_ANALOG_CONNECTOR))
{
/* type analog */
if (BridgePin)
*TargetType = MIXERLINE_TARGETTYPE_WAVEIN;
else
*TargetType = MIXERLINE_TARGETTYPE_WAVEOUT;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_ANALOG;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_SPDIF_INTERFACE))
{
/* type analog */
if (BridgePin)
*TargetType = MIXERLINE_TARGETTYPE_WAVEIN;
else
*TargetType = MIXERLINE_TARGETTYPE_WAVEOUT;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_DIGITAL;
}
else
{
/* unknown type */
*TargetType = MIXERLINE_TARGETTYPE_UNDEFINED;
*ComponentType = MIXERLINE_COMPONENTTYPE_SRC_UNDEFINED;
DPRINT1("Unknown Category for PinId %lu BridgePin %lu\n", PinId, BridgePin);
}
}
else
{
if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_SPEAKER) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_DESKTOP_SPEAKER) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_ROOM_SPEAKER) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_COMMUNICATION_SPEAKER))
{
/* type waveout */
*TargetType = MIXERLINE_TARGETTYPE_WAVEOUT;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
}
else if (IsEqualGUIDAligned(&Guid, &KSCATEGORY_AUDIO) ||
IsEqualGUIDAligned(&Guid, &PINNAME_CAPTURE))
{
/* type wavein */
*TargetType = MIXERLINE_TARGETTYPE_WAVEIN;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_WAVEIN;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_HEADPHONES) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_HEAD_MOUNTED_DISPLAY_AUDIO))
{
/* type head phones */
*TargetType = MIXERLINE_TARGETTYPE_WAVEOUT;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_HEADPHONES;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_TELEPHONE) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_PHONE_LINE) ||
IsEqualGUIDAligned(&Guid, &KSNODETYPE_DOWN_LINE_PHONE))
{
/* type waveout */
*TargetType = MIXERLINE_TARGETTYPE_UNDEFINED;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_TELEPHONE;
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_ANALOG_CONNECTOR))
{
/* type analog */
if (BridgePin)
{
*TargetType = MIXERLINE_TARGETTYPE_WAVEOUT;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
}
else
{
*TargetType = MIXERLINE_TARGETTYPE_WAVEIN;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_WAVEIN;
}
}
else if (IsEqualGUIDAligned(&Guid, &KSNODETYPE_SPDIF_INTERFACE))
{
/* type spdif */
if (BridgePin)
{
*TargetType = MIXERLINE_TARGETTYPE_WAVEOUT;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
}
else
{
*TargetType = MIXERLINE_TARGETTYPE_WAVEIN;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_WAVEIN;
}
}
else
{
/* unknown type */
*TargetType = MIXERLINE_TARGETTYPE_UNDEFINED;
*ComponentType = MIXERLINE_COMPONENTTYPE_DST_UNDEFINED;
DPRINT1("Unknown Category for PinId %lu BridgePin %lu\n", PinId, BridgePin);
}
}
/* done */
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerBuildMixerSourceLine(
IN PMIXER_CONTEXT MixerContext,
IN OUT LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN PTOPOLOGY Topology,
IN ULONG PinId,
IN ULONG NodesCount,
IN PULONG Nodes,
IN ULONG DestinationLineID,
OUT LPMIXERLINE_EXT * OutSrcLine)
{
LPMIXERLINE_EXT SrcLine, DstLine;
LPWSTR PinName;
MIXER_STATUS Status;
ULONG ComponentType, TargetType;
/* get component and target type */
Status = MMixerGetComponentAndTargetType(MixerContext, MixerInfo, hMixer, PinId, &ComponentType, &TargetType);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get component status */
TargetType = MIXERLINE_TARGETTYPE_UNDEFINED;
ComponentType = MIXERLINE_COMPONENTTYPE_DST_UNDEFINED;
}
/* construct source line */
SrcLine = (LPMIXERLINE_EXT)MixerContext->Alloc(sizeof(MIXERLINE_EXT));
if (!SrcLine)
{
/* no memory */
return MM_STATUS_NO_MEMORY;
}
/* get destination line */
DstLine = MMixerGetSourceMixerLineByLineId(MixerInfo, DestinationLineID);
ASSERT(DstLine);
/* initialize mixer src line */
SrcLine->PinId = PinId;
/* initialize mixer line */
SrcLine->Line.cbStruct = sizeof(MIXERLINEW);
SrcLine->Line.dwDestination = MixerInfo->MixCaps.cDestinations-1;
SrcLine->Line.dwSource = DstLine->Line.cConnections;
SrcLine->Line.dwLineID = (DstLine->Line.cConnections * SOURCE_LINE)+ (MixerInfo->MixCaps.cDestinations-1);
SrcLine->Line.fdwLine = MIXERLINE_LINEF_ACTIVE | MIXERLINE_LINEF_SOURCE;
SrcLine->Line.dwComponentType = ComponentType;
SrcLine->Line.dwUser = 0;
SrcLine->Line.cChannels = DstLine->Line.cChannels;
SrcLine->Line.cConnections = 0;
SrcLine->Line.Target.dwType = TargetType;
SrcLine->Line.Target.dwDeviceID = DstLine->Line.Target.dwDeviceID;
SrcLine->Line.Target.wMid = MixerInfo->MixCaps.wMid;
SrcLine->Line.Target.wPid = MixerInfo->MixCaps.wPid;
SrcLine->Line.Target.vDriverVersion = MixerInfo->MixCaps.vDriverVersion;
InitializeListHead(&SrcLine->ControlsList);
/* copy name */
ASSERT(MixerInfo->MixCaps.szPname[MAXPNAMELEN-1] == L'\0');
wcscpy(SrcLine->Line.Target.szPname, MixerInfo->MixCaps.szPname);
/* get pin name */
Status = MMixerGetPinName(MixerContext, MixerInfo, hMixer, PinId, &PinName);
if (Status == MM_STATUS_SUCCESS)
{
/* store pin name as line name */
MixerContext->Copy(SrcLine->Line.szShortName, PinName, (min(MIXER_SHORT_NAME_CHARS, wcslen(PinName)+1)) * sizeof(WCHAR));
SrcLine->Line.szShortName[MIXER_SHORT_NAME_CHARS-1] = L'\0';
MixerContext->Copy(SrcLine->Line.szName, PinName, (min(MIXER_LONG_NAME_CHARS, wcslen(PinName)+1)) * sizeof(WCHAR));
SrcLine->Line.szName[MIXER_LONG_NAME_CHARS-1] = L'\0';
/* free pin name buffer */
MixerContext->Free(PinName);
}
/* add the controls to mixer line */
Status = MMixerAddMixerControlsToMixerLineByNodeIndexArray(MixerContext, MixerInfo, hMixer, Topology, SrcLine, NodesCount, Nodes);
if (Status != MM_STATUS_SUCCESS)
{
/* failed */
return Status;
}
/* store result */
*OutSrcLine = SrcLine;
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerAddMixerSourceLines(
IN PMIXER_CONTEXT MixerContext,
IN OUT LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN PTOPOLOGY Topology,
IN ULONG DestinationLineID,
IN ULONG LineTerminator)
{
PULONG AllNodes, AllPins, AllPinNodes;
ULONG AllNodesCount, AllPinsCount, AllPinNodesCount;
ULONG Index, SubIndex, PinId, CurNode, bConnected;
MIXER_STATUS Status;
LPMIXERLINE_EXT DstLine, SrcLine;
/* get destination line */
DstLine = MMixerGetSourceMixerLineByLineId(MixerInfo, DestinationLineID);
ASSERT(DstLine);
/* allocate an array to store all nodes which are upstream of the line terminator */
Status = MMixerAllocateTopologyNodeArray(MixerContext, Topology, &AllNodes);
/* check for success */
if (Status != MM_STATUS_SUCCESS)
{
/* out of memory */
return MM_STATUS_NO_MEMORY;
}
/* allocate an array to store all nodes which are downstream of a particular pin */
Status = MMixerAllocateTopologyNodeArray(MixerContext, Topology, &AllPinNodes);
/* allocate an array to store all pins which are upstream of this pin */
Status = MMixerAllocateTopologyPinArray(MixerContext, Topology, &AllPins);
/* check for success */
if (Status != MM_STATUS_SUCCESS)
{
/* out of memory */
MixerContext->Free(AllNodes);
return MM_STATUS_NO_MEMORY;
}
/* get all nodes which indirectly / directly connect to this node */
AllNodesCount = 0;
MMixerGetAllUpOrDownstreamNodesFromNodeIndex(MixerContext, Topology, LineTerminator, TRUE, &AllNodesCount, AllNodes);
/* get all pins which indirectly / directly connect to this node */
AllPinsCount = 0;
MMixerGetAllUpOrDownstreamPinsFromNodeIndex(MixerContext, Topology, LineTerminator, TRUE, &AllPinsCount, AllPins);
DPRINT("LineTerminator %lu\n", LineTerminator);
DPRINT("PinCount %lu\n", AllPinsCount);
DPRINT("AllNodesCount %lu\n", AllNodesCount);
/* now construct the source lines which are attached to the destination line */
Index = AllPinsCount;
do
{
/* get current pin id */
PinId = AllPins[Index - 1];
/* reset nodes count */
AllPinNodesCount = 0;
/* now scan all nodes and add them to AllPinNodes array when they are connected to this pin */
for(SubIndex = 0; SubIndex < AllNodesCount; SubIndex++)
{
/* get current node index */
CurNode = AllNodes[SubIndex];
if (CurNode != MAXULONG && CurNode != LineTerminator)
{
/* check if that node is connected in some way to the current pin */
Status = MMixerIsNodeConnectedToPin(MixerContext, Topology, CurNode, PinId, TRUE, &bConnected);
if (Status != MM_STATUS_SUCCESS)
break;
if (bConnected)
{
/* it is connected */
AllPinNodes[AllPinNodesCount] = CurNode;
AllPinNodesCount++;
/* clear current index */
AllNodes[SubIndex] = MAXULONG;
}
}
}
/* decrement pin index */
Index--;
if (AllPinNodesCount)
{
#ifdef MMIXER_DEBUG
ULONG TempIndex;
#endif
/* now build the mixer source line */
Status = MMixerBuildMixerSourceLine(MixerContext, MixerInfo, hMixer, Topology, PinId, AllPinNodesCount, AllPinNodes, DestinationLineID, &SrcLine);
if (Status == MM_STATUS_SUCCESS)
{
/* insert into line list */
InsertTailList(&MixerInfo->LineList, &SrcLine->Entry);
/* increment destination line count */
DstLine->Line.cConnections++;
/* mark pin as reserved */
MMixerSetTopologyPinReserved(Topology, PinId);
#ifdef MMIXER_DEBUG
DPRINT1("Adding PinId %lu AllPinNodesCount %lu to DestinationLine %lu\n", PinId, AllPinNodesCount, DestinationLineID);
for(TempIndex = 0; TempIndex < AllPinNodesCount; TempIndex++)
DPRINT1("NodeIndex %lu\n", AllPinNodes[TempIndex]);
#endif
}
}
else
{
#ifdef MMIXER_DEBUG
DPRINT1("Discarding DestinationLineID %lu PinId %lu NO NODES!\n", DestinationLineID, PinId);
#endif
}
}while(Index != 0);
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerAddMixerControlsToDestinationLine(
IN PMIXER_CONTEXT MixerContext,
IN OUT LPMIXER_INFO MixerInfo,
IN HANDLE hMixer,
IN PTOPOLOGY Topology,
IN ULONG PinId,
IN ULONG bInput,
IN ULONG DestinationLineId,
OUT PULONG OutLineTerminator)
{
PULONG Nodes;
ULONG NodesCount, LineTerminator;
MIXER_STATUS Status;
LPMIXERLINE_EXT DstLine;
/* allocate nodes index array */
Status = MMixerAllocateTopologyNodeArray(MixerContext, Topology, &Nodes);
/* check for success */
if (Status != MM_STATUS_SUCCESS)
{
/* out of memory */
return Status;
}
/* get all destination line controls */
Status = MMixerCountMixerControls(MixerContext, Topology, PinId, bInput, TRUE, &NodesCount, Nodes, &LineTerminator);
/* check for success */
if (Status != MM_STATUS_SUCCESS)
{
/* failed to count controls */
MixerContext->Free(Nodes);
return Status;
}
/* get destination mixer line */
DstLine = MMixerGetSourceMixerLineByLineId(MixerInfo, DestinationLineId);
/* sanity check */
ASSERT(DstLine);
if (NodesCount > 0)
{
/* add all nodes as mixer controls to the destination line */
Status = MMixerAddMixerControlsToMixerLineByNodeIndexArray(MixerContext, MixerInfo, hMixer, Topology, DstLine, NodesCount, Nodes);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to add controls */
MixerContext->Free(Nodes);
return Status;
}
}
/* store result */
*OutLineTerminator = LineTerminator;
/* return result */
return Status;
}
VOID
MMixerApplyOutputFilterHack(
IN PMIXER_CONTEXT MixerContext,
IN LPMIXER_DATA MixerData,
IN HANDLE hMixer,
IN OUT PULONG PinsCount,
IN OUT PULONG Pins)
{
ULONG Count = 0, Index;
MIXER_STATUS Status;
PKSPIN_PHYSICALCONNECTION Connection;
for(Index = 0; Index < *PinsCount; Index++)
{
/* check if it has a physical connection */
Status = MMixerGetPhysicalConnection(MixerContext, hMixer, Pins[Index], &Connection);
if (Status == MM_STATUS_SUCCESS)
{
/* remove pin */
MixerContext->Copy(&Pins[Index], &Pins[Index + 1], (*PinsCount - (Index + 1)) * sizeof(ULONG));
/* free physical connection */
MixerContext->Free(Connection);
/* decrement index */
Index--;
/* decrement pin count */
(*PinsCount)--;
}
else
{
/* simple pin */
Count++;
}
}
/* store result */
*PinsCount = Count;
}
MIXER_STATUS
MMixerHandleTopologyFilter(
IN PMIXER_CONTEXT MixerContext,
IN PMIXER_LIST MixerList,
IN LPMIXER_DATA MixerData,
IN OUT LPMIXER_INFO MixerInfo,
IN ULONG bInput,
IN ULONG Pin)
{
MIXER_STATUS Status;
ULONG PinsCount, LineTerminator, DestinationLineID;
PULONG Pins;
PTOPOLOGY Topology;
/* re-use existing topology */
Topology = MixerData->Topology;
if (!bInput)
{
/* allocate pin index array which will hold all referenced pins */
Status = MMixerAllocateTopologyPinArray(MixerContext, Topology, &Pins);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to create topology */
return Status;
}
/* the mixer is an output mixer
* find end pin of the node path
*/
PinsCount = 0;
Status = MMixerGetAllUpOrDownstreamPinsFromPinIndex(MixerContext, Topology, Pin, FALSE, &PinsCount, Pins);
/* check for success */
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get end pin */
MixerContext->Free(Pins);
//MMixerFreeTopology(Topology);
/* return error code */
return Status;
}
/* HACK:
* some topologies do not have strict boundaries
* WorkArround: remove all pin ids which have a physical connection
* because bridge pins may belong to different render paths
*/
MMixerApplyOutputFilterHack(MixerContext, MixerData, MixerData->hDevice, &PinsCount, Pins);
/* sanity checks */
ASSERT(PinsCount != 0);
if (PinsCount != 1)
{
DPRINT1("MMixerHandlePhysicalConnection Expected 1 pin but got %lu\n", PinsCount);
}
/* create destination line */
Status = MMixerBuildMixerDestinationLine(MixerContext, MixerInfo, MixerData->hDevice, Pins[0], bInput);
/* calculate destination line id */
DestinationLineID = (DESTINATION_LINE + MixerInfo->MixCaps.cDestinations - 1);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to build destination line */
MixerContext->Free(Pins);
/* return error code */
return Status;
}
/* add mixer controls to destination line */
Status = MMixerAddMixerControlsToDestinationLine(MixerContext, MixerInfo, MixerData->hDevice, Topology, Pins[0], bInput, DestinationLineID, &LineTerminator);
if (Status == MM_STATUS_SUCCESS)
{
/* now add the rest of the source lines */
Status = MMixerAddMixerSourceLines(MixerContext, MixerInfo, MixerData->hDevice, Topology, DestinationLineID, LineTerminator);
}
/* mark pin as consumed */
MMixerSetTopologyPinReserved(Topology, Pins[0]);
/* free topology pin array */
MixerContext->Free(Pins);
}
else
{
/* calculate destination line id */
DestinationLineID = (DESTINATION_LINE + MixerInfo->MixCaps.cDestinations - 1);
/* add mixer controls */
Status = MMixerAddMixerControlsToDestinationLine(MixerContext, MixerInfo, MixerData->hDevice, Topology, Pin, bInput, DestinationLineID, &LineTerminator);
if (Status == MM_STATUS_SUCCESS)
{
/* now add the rest of the source lines */
Status = MMixerAddMixerSourceLines(MixerContext, MixerInfo, MixerData->hDevice, Topology, DestinationLineID, LineTerminator);
}
}
return Status;
}
MIXER_STATUS
MMixerHandlePhysicalConnection(
IN PMIXER_CONTEXT MixerContext,
IN PMIXER_LIST MixerList,
IN LPMIXER_DATA MixerData,
IN OUT LPMIXER_INFO MixerInfo,
IN ULONG bInput,
IN PKSPIN_PHYSICALCONNECTION OutConnection)
{
MIXER_STATUS Status;
ULONG PinsCount, LineTerminator, DestinationLineID;
PULONG Pins;
PTOPOLOGY Topology;
/* first try to open the connected filter */
OutConnection->SymbolicLinkName[1] = L'\\';
MixerData = MMixerGetDataByDeviceName(MixerList, OutConnection->SymbolicLinkName);
/* check if the linked connection is found */
if (!MixerData)
{
/* filter references invalid physical connection */
return MM_STATUS_UNSUCCESSFUL;
}
DPRINT("Name %S, Pin %lu bInput %lu\n", OutConnection->SymbolicLinkName, OutConnection->Pin, bInput);
/* sanity check */
ASSERT(MixerData->MixerInfo == NULL || MixerData->MixerInfo == MixerInfo);
/* associate with mixer */
MixerData->MixerInfo = MixerInfo;
if (MixerData->Topology == NULL)
{
/* construct new topology */
Status = MMixerBuildTopology(MixerContext, MixerData, &Topology);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to create topology */
return Status;
}
/* store topology */
MixerData->Topology = Topology;
}
else
{
/* re-use existing topology */
Topology = MixerData->Topology;
}
/* mark pin as consumed */
MMixerSetTopologyPinReserved(Topology, OutConnection->Pin);
if (!bInput)
{
/* allocate pin index array which will hold all referenced pins */
Status = MMixerAllocateTopologyPinArray(MixerContext, Topology, &Pins);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to create topology */
return Status;
}
/* the mixer is an output mixer
* find end pin of the node path
*/
PinsCount = 0;
Status = MMixerGetAllUpOrDownstreamPinsFromPinIndex(MixerContext, Topology, OutConnection->Pin, FALSE, &PinsCount, Pins);
/* check for success */
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get end pin */
MixerContext->Free(Pins);
//MMixerFreeTopology(Topology);
/* return error code */
return Status;
}
/* HACK:
* some topologies do not have strict boundaries
* WorkArround: remove all pin ids which have a physical connection
* because bridge pins may belong to different render paths
*/
MMixerApplyOutputFilterHack(MixerContext, MixerData, MixerData->hDevice, &PinsCount, Pins);
/* sanity checks */
ASSERT(PinsCount != 0);
if (PinsCount != 1)
{
DPRINT1("MMixerHandlePhysicalConnection Expected 1 pin but got %lu\n", PinsCount);
}
/* create destination line */
Status = MMixerBuildMixerDestinationLine(MixerContext, MixerInfo, MixerData->hDevice, Pins[0], bInput);
/* calculate destination line id */
DestinationLineID = (DESTINATION_LINE + MixerInfo->MixCaps.cDestinations-1);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to build destination line */
MixerContext->Free(Pins);
/* return error code */
return Status;
}
/* add mixer controls to destination line */
Status = MMixerAddMixerControlsToDestinationLine(MixerContext, MixerInfo, MixerData->hDevice, Topology, Pins[0], bInput, DestinationLineID, &LineTerminator);
if (Status == MM_STATUS_SUCCESS)
{
/* now add the rest of the source lines */
Status = MMixerAddMixerSourceLines(MixerContext, MixerInfo, MixerData->hDevice, Topology, DestinationLineID, LineTerminator);
}
/* mark pin as consumed */
MMixerSetTopologyPinReserved(Topology, Pins[0]);
/* free topology pin array */
MixerContext->Free(Pins);
}
else
{
/* calculate destination line id */
DestinationLineID = (DESTINATION_LINE + MixerInfo->MixCaps.cDestinations-1);
/* add mixer controls */
Status = MMixerAddMixerControlsToDestinationLine(MixerContext, MixerInfo, MixerData->hDevice, Topology, OutConnection->Pin, bInput, DestinationLineID, &LineTerminator);
if (Status == MM_STATUS_SUCCESS)
{
/* now add the rest of the source lines */
Status = MMixerAddMixerSourceLines(MixerContext, MixerInfo, MixerData->hDevice, Topology, DestinationLineID, LineTerminator);
}
}
return Status;
}
MIXER_STATUS
MMixerInitializeFilter(
IN PMIXER_CONTEXT MixerContext,
IN PMIXER_LIST MixerList,
IN LPMIXER_DATA MixerData,
IN LPMIXER_INFO MixerInfo,
IN PTOPOLOGY Topology,
IN ULONG NodeIndex,
IN ULONG bInputMixer,
IN OUT LPMIXER_INFO * OutMixerInfo)
{
ULONG Index;
MIXER_STATUS Status;
PKSPIN_PHYSICALCONNECTION OutConnection;
ULONG * Pins;
ULONG PinsFound;
ULONG NewMixerInfo = FALSE;
if (MixerInfo == NULL)
{
/* allocate a mixer info struct */
MixerInfo = (LPMIXER_INFO) MixerContext->Alloc(sizeof(MIXER_INFO));
if (!MixerInfo)
{
/* no memory */
return MM_STATUS_NO_MEMORY;
}
/* new mixer info */
NewMixerInfo = TRUE;
/* intialize mixer caps */
MixerInfo->MixCaps.wMid = MM_MICROSOFT; /* FIXME */
MixerInfo->MixCaps.wPid = MM_PID_UNMAPPED; /* FIXME */
MixerInfo->MixCaps.vDriverVersion = 1; /* FIXME */
MixerInfo->MixCaps.fdwSupport = 0;
MixerInfo->MixCaps.cDestinations = 0;
/* get mixer name */
Status = MMixerGetDeviceName(MixerContext, MixerInfo->MixCaps.szPname, MixerData->hDeviceInterfaceKey);
if (Status != MM_STATUS_SUCCESS)
{
/* try get name with component id */
Status = MMixerGetDeviceNameWithComponentId(MixerContext, MixerData->hDevice, MixerInfo->MixCaps.szPname);
}
/* initialize line list */
InitializeListHead(&MixerInfo->LineList);
InitializeListHead(&MixerInfo->EventList);
/* associate with mixer data */
MixerData->MixerInfo = MixerInfo;
}
/* store mixer info */
*OutMixerInfo = MixerInfo;
/* now allocate an array which will receive the indices of the pin
* which has a ADC / DAC nodetype in its path
*/
Status = MMixerAllocateTopologyPinArray(MixerContext, Topology, &Pins);
ASSERT(Status == MM_STATUS_SUCCESS);
PinsFound = 0;
/* now get all sink / source pins, which are attached to the ADC / DAC node
* For sink pins (wave out) search up stream
* For source pins (wave in) search down stream
* The search direction is always the opposite of the current mixer type
*/
PinsFound = 0;
MMixerGetAllUpOrDownstreamPinsFromNodeIndex(MixerContext, Topology, NodeIndex, !bInputMixer, &PinsFound, Pins);
/* if there is no pin found, we have a broken topology */
ASSERT(PinsFound != 0);
/* now create a wave info struct */
Status = MMixerInitializeWaveInfo(MixerContext, MixerList, MixerData, MixerInfo->MixCaps.szPname, bInputMixer, PinsFound, Pins);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to create wave info struct */
MixerContext->Free(MixerInfo);
MixerContext->Free(Pins);
return Status;
}
/* mark all found pins as reserved */
for(Index = 0; Index < PinsFound; Index++)
{
MMixerSetTopologyPinReserved(Topology, Pins[Index]);
}
if (bInputMixer)
{
/* pre create the mixer destination line for input mixers */
Status = MMixerBuildMixerDestinationLine(MixerContext, MixerInfo, MixerData->hDevice, Pins[0], bInputMixer);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to create mixer destination line */
return Status;
}
}
/* now get the bridge pin which is at the end of node path
* For sink pins (wave out) search down stream
* For source pins (wave in) search up stream
*/
MixerContext->Free(Pins);
Status = MMixerAllocateTopologyPinArray(MixerContext, Topology, &Pins);
ASSERT(Status == MM_STATUS_SUCCESS);
PinsFound = 0;
MMixerGetAllUpOrDownstreamPinsFromNodeIndex(MixerContext, Topology, NodeIndex, bInputMixer, &PinsFound, Pins);
/* if there is no pin found, we have a broken topology */
ASSERT(PinsFound != 0);
/* there should be exactly one bridge pin */
ASSERT(PinsFound == 1);
DPRINT("BridgePin %lu bInputMixer %lu\n", Pins[0], bInputMixer);
/* does the pin have a physical connection */
Status = MMixerGetPhysicalConnection(MixerContext, MixerData->hDevice, Pins[0], &OutConnection);
if (Status == MM_STATUS_SUCCESS)
{
/* mark pin as reserved */
MMixerSetTopologyPinReserved(Topology, Pins[0]);
/* topology on the topoloy filter */
Status = MMixerHandlePhysicalConnection(MixerContext, MixerList, MixerData, MixerInfo, bInputMixer, OutConnection);
/* free physical connection data */
MixerContext->Free(OutConnection);
}
else
{
/* topology is on the same filter */
Status = MMixerHandleTopologyFilter(MixerContext, MixerList, MixerData, MixerInfo, bInputMixer, Pins[0]);
}
/* free pins */
MixerContext->Free(Pins);
if (NewMixerInfo)
{
/* insert mixer */
InsertHeadList(&MixerList->MixerList, &MixerInfo->Entry);
/* increment mixer count */
MixerList->MixerListCount++;
}
/* done */
return Status;
}
VOID
MMixerHandleAlternativeMixers(
IN PMIXER_CONTEXT MixerContext,
IN PMIXER_LIST MixerList,
IN LPMIXER_DATA MixerData,
IN PTOPOLOGY Topology)
{
ULONG Index, PinCount, Reserved;
MIXER_STATUS Status;
ULONG DestinationLineID, LineTerminator;
LPMIXERLINE_EXT DstLine;
DPRINT("DeviceName %S\n", MixerData->DeviceName);
/* get topology pin count */
MMixerGetTopologyPinCount(Topology, &PinCount);
for(Index = 0; Index < PinCount; Index++)
{
MMixerIsTopologyPinReserved(Topology, Index, &Reserved);
/* check if it has already been reserved */
if (Reserved)
{
/* pin has already been reserved */
continue;
}
DPRINT("MixerName %S Available PinID %lu\n", MixerData->DeviceName, Index);
/* sanity check */
//ASSERT(MixerData->MixerInfo);
if (!MixerData->MixerInfo)
{
DPRINT1("Expected mixer info\n");
continue;
}
/* build the destination line */
Status = MMixerBuildMixerDestinationLine(MixerContext, MixerData->MixerInfo, MixerData->hDevice, Index, TRUE);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to build destination line */
continue;
}
/* calculate destination line id */
DestinationLineID = (DESTINATION_LINE + MixerData->MixerInfo->MixCaps.cDestinations-1);
/* add mixer controls to destination line */
Status = MMixerAddMixerControlsToDestinationLine(MixerContext, MixerData->MixerInfo, MixerData->hDevice, MixerData->Topology, Index, TRUE, DestinationLineID, &LineTerminator);
if (Status == MM_STATUS_SUCCESS)
{
/* now add the rest of the source lines */
Status = MMixerAddMixerSourceLines(MixerContext, MixerData->MixerInfo, MixerData->hDevice, MixerData->Topology, DestinationLineID, LineTerminator);
}
/* mark pin as consumed */
MMixerSetTopologyPinReserved(Topology, Index);
/* now grab destination line */
DstLine = MMixerGetSourceMixerLineByLineId(MixerData->MixerInfo, DestinationLineID);
/* set type and target as undefined */
DstLine->Line.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_UNDEFINED;
DstLine->Line.Target.dwType = MIXERLINE_TARGETTYPE_UNDEFINED;
DstLine->Line.Target.vDriverVersion = 0;
DstLine->Line.Target.wMid = 0;
DstLine->Line.Target.wPid = 0;
}
}
MIXER_STATUS
MMixerSetupFilter(
IN PMIXER_CONTEXT MixerContext,
IN PMIXER_LIST MixerList,
IN LPMIXER_DATA MixerData,
IN PULONG DeviceCount)
{
MIXER_STATUS Status = MM_STATUS_SUCCESS;
PTOPOLOGY Topology;
ULONG NodeIndex;
LPMIXER_INFO MixerInfo = NULL;
/* check if topology has already been built */
if (MixerData->Topology == NULL)
{
/* build topology */
Status = MMixerBuildTopology(MixerContext, MixerData, &Topology);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to build topology */
return Status;
}
/* store topology */
MixerData->Topology = Topology;
}
else
{
/* re-use topology */
Topology = MixerData->Topology;
}
/* check if the filter has an wave out node */
NodeIndex = MMixerGetNodeIndexFromGuid(Topology, &KSNODETYPE_DAC);
if (NodeIndex != MAXULONG)
{
/* it has */
Status = MMixerInitializeFilter(MixerContext, MixerList, MixerData, NULL, Topology, NodeIndex, FALSE, &MixerInfo);
/* check for success */
if (Status == MM_STATUS_SUCCESS)
{
/* increment mixer count */
(*DeviceCount)++;
}
else
{
/* reset mixer info in case of error */
MixerInfo = NULL;
}
}
/* check if the filter has an wave in node */
NodeIndex = MMixerGetNodeIndexFromGuid(Topology, &KSNODETYPE_ADC);
if (NodeIndex != MAXULONG)
{
/* it has */
Status = MMixerInitializeFilter(MixerContext, MixerList, MixerData, MixerInfo, Topology, NodeIndex, TRUE, &MixerInfo);
/* check for success */
if (Status == MM_STATUS_SUCCESS)
{
/* increment mixer count */
(*DeviceCount)++;
}
}
/* TODO: apply hacks for Wave source line */
/* activate midi devices */
//MMixerInitializeMidiForFilter(MixerContext, MixerList, MixerData, Topology);
/* done */
return Status;
}
MIXER_STATUS
MMixerAddEvent(
IN PMIXER_CONTEXT MixerContext,
IN OUT LPMIXER_INFO MixerInfo,
IN PVOID MixerEventContext,
IN PMIXER_EVENT MixerEventRoutine)
{
//KSE_NODE Property;
//KSEVENTDATA EventData
//ULONG BytesReturned;
//MIXER_STATUS Status;
PEVENT_NOTIFICATION_ENTRY EventNotification;
EventNotification = (PEVENT_NOTIFICATION_ENTRY)MixerContext->Alloc(sizeof(EVENT_NOTIFICATION_ENTRY));
if (!EventNotification)
{
/* not enough memory */
return MM_STATUS_NO_MEMORY;
}
/* FIXME: what is it supposed to happen with KSEVENTDATA ? */
#if 0
/* setup request */
Property.Event.Set = KSEVENTSETID_AudioControlChange;
Property.Event.Flags = KSEVENT_TYPE_TOPOLOGY|KSEVENT_TYPE_ENABLE;
Property.Event.Id = KSEVENT_CONTROL_CHANGE;
Property.NodeId = NodeId;
Property.Reserved = 0;
Status = MixerContext->Control(MixerInfo->hMixer, IOCTL_KS_ENABLE_EVENT, (PVOID)&Property, sizeof(KSP_NODE), (PVOID)EventData, sizeof(KSEVENTDATA), &BytesReturned);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to add event */
MixerContext->FreeEventData(EventData);
return Status;
}
#endif
/* initialize notification entry */
EventNotification->MixerEventContext = MixerEventContext;
EventNotification->MixerEventRoutine = MixerEventRoutine;
/* store event */
InsertTailList(&MixerInfo->EventList, &EventNotification->Entry);
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerRemoveEvent(
IN PMIXER_CONTEXT MixerContext,
IN OUT LPMIXER_INFO MixerInfo,
IN PVOID MixerEventContext,
IN PMIXER_EVENT MixerEventRoutine)
{
PLIST_ENTRY EventList;
PEVENT_NOTIFICATION_ENTRY NotificationEntry;
/* Lookup through mixers */
EventList = MixerInfo->EventList.Flink;
while(EventList != &MixerInfo->EventList)
{
NotificationEntry = CONTAINING_RECORD(EventList, EVENT_NOTIFICATION_ENTRY, Entry);
EventList = EventList->Flink;
/* TODO: find a better way to identify an event ? */
if(NotificationEntry->MixerEventRoutine == MixerEventRoutine &&
NotificationEntry->MixerEventContext == MixerEventContext)
{
DPRINT1("Freeing entry %p\n", NotificationEntry);
/* We found the event to remove */
RemoveEntryList(&NotificationEntry->Entry);
MixerContext->Free(NotificationEntry);
}
}
return MM_STATUS_SUCCESS;
}