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wave.c
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wave.c
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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Kernel Streaming
* FILE: lib/drivers/sound/mmixer/wave.c
* PURPOSE: Wave Handling Functions
* PROGRAMMER: Johannes Anderwald
*/
#include "precomp.h"
// #define NDEBUG
#include <debug.h>
const GUID KSPROPSETID_Connection = {0x1D58C920L, 0xAC9B, 0x11CF, {0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00}};
const GUID KSDATAFORMAT_SPECIFIER_WAVEFORMATEX = {0x05589f81L, 0xc356, 0x11ce, {0xbf, 0x01, 0x00, 0xaa, 0x00, 0x55, 0x59, 0x5a}};
const GUID KSDATAFORMAT_SUBTYPE_PCM = {0x00000001L, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
const GUID KSDATAFORMAT_TYPE_AUDIO = {0x73647561L, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
const GUID KSINTERFACESETID_Standard = {0x1A8766A0L, 0x62CE, 0x11CF, {0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00}};
const GUID KSMEDIUMSETID_Standard = {0x4747B320L, 0x62CE, 0x11CF, {0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00}};
typedef struct
{
ULONG SampleRate;
ULONG Bit8Mono;
ULONG Bit8Stereo;
ULONG Bit16Mono;
ULONG Bit16Stereo;
}AUDIO_RANGE;
#define AUDIO_TEST_RANGE (5)
static AUDIO_RANGE TestRange[AUDIO_TEST_RANGE] =
{
{
11025,
WAVE_FORMAT_1M08,
WAVE_FORMAT_1S08,
WAVE_FORMAT_1M16,
WAVE_FORMAT_1S16
},
{
22050,
WAVE_FORMAT_2M08,
WAVE_FORMAT_2S08,
WAVE_FORMAT_2M16,
WAVE_FORMAT_2S16
},
{
44100,
WAVE_FORMAT_4M08,
WAVE_FORMAT_4S08,
WAVE_FORMAT_4M16,
WAVE_FORMAT_4S16
},
{
48000,
WAVE_FORMAT_48M08,
WAVE_FORMAT_48S08,
WAVE_FORMAT_48M16,
WAVE_FORMAT_48S16
},
{
96000,
WAVE_FORMAT_96M08,
WAVE_FORMAT_96S08,
WAVE_FORMAT_96M16,
WAVE_FORMAT_96S16
}
};
PKSPIN_CONNECT
MMixerAllocatePinConnect(
IN PMIXER_CONTEXT MixerContext,
ULONG DataFormatSize)
{
return MixerContext->Alloc(sizeof(KSPIN_CONNECT) + DataFormatSize);
}
MIXER_STATUS
MMixerGetWaveInfoByIndexAndType(
IN PMIXER_LIST MixerList,
IN ULONG DeviceIndex,
IN ULONG bWaveInType,
OUT LPWAVE_INFO *OutWaveInfo)
{
ULONG Index = 0;
PLIST_ENTRY Entry, ListHead;
LPWAVE_INFO WaveInfo;
if (bWaveInType)
ListHead = &MixerList->WaveInList;
else
ListHead = &MixerList->WaveOutList;
/* get first entry */
Entry = ListHead->Flink;
while(Entry != ListHead)
{
WaveInfo = (LPWAVE_INFO)CONTAINING_RECORD(Entry, WAVE_INFO, Entry);
if (Index == DeviceIndex)
{
*OutWaveInfo = WaveInfo;
return MM_STATUS_SUCCESS;
}
Index++;
Entry = Entry->Flink;
}
return MM_STATUS_INVALID_PARAMETER;
}
VOID
MMixerInitializeDataFormat(
IN PKSDATAFORMAT_WAVEFORMATEX DataFormat,
LPWAVEFORMATEX WaveFormatEx)
{
DataFormat->WaveFormatEx.wFormatTag = WaveFormatEx->wFormatTag;
DataFormat->WaveFormatEx.nChannels = WaveFormatEx->nChannels;
DataFormat->WaveFormatEx.nSamplesPerSec = WaveFormatEx->nSamplesPerSec;
DataFormat->WaveFormatEx.nBlockAlign = WaveFormatEx->nBlockAlign;
DataFormat->WaveFormatEx.nAvgBytesPerSec = WaveFormatEx->nAvgBytesPerSec;
DataFormat->WaveFormatEx.wBitsPerSample = WaveFormatEx->wBitsPerSample;
DataFormat->WaveFormatEx.cbSize = WaveFormatEx->cbSize;
DataFormat->DataFormat.FormatSize = sizeof(KSDATAFORMAT) + sizeof(WAVEFORMATEX) + WaveFormatEx->cbSize;
DataFormat->DataFormat.Flags = 0;
DataFormat->DataFormat.Reserved = 0;
DataFormat->DataFormat.MajorFormat = KSDATAFORMAT_TYPE_AUDIO;
DataFormat->DataFormat.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
DataFormat->DataFormat.Specifier = KSDATAFORMAT_SPECIFIER_WAVEFORMATEX;
DataFormat->DataFormat.SampleSize = 4;
/* Write additional fields for Extensible audio format */
if (WaveFormatEx->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
{
PWAVEFORMATEXTENSIBLE WaveFormatExt = (PWAVEFORMATEXTENSIBLE)&DataFormat->WaveFormatEx;
WaveFormatExt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
WaveFormatExt->Samples.wValidBitsPerSample = WaveFormatEx->wBitsPerSample;
if (WaveFormatEx->nChannels == 0)
WaveFormatExt->dwChannelMask = KSAUDIO_SPEAKER_DIRECTOUT;
else if (WaveFormatEx->nChannels == 1)
WaveFormatExt->dwChannelMask = KSAUDIO_SPEAKER_MONO;
else if (WaveFormatEx->nChannels == 2)
WaveFormatExt->dwChannelMask = KSAUDIO_SPEAKER_STEREO;
else if (WaveFormatEx->nChannels == 4)
WaveFormatExt->dwChannelMask = KSAUDIO_SPEAKER_QUAD;
else if (WaveFormatEx->nChannels == 5)
WaveFormatExt->dwChannelMask = KSAUDIO_SPEAKER_5POINT1;
else if (WaveFormatEx->nChannels == 7)
WaveFormatExt->dwChannelMask = KSAUDIO_SPEAKER_7POINT1;
}
}
MIXER_STATUS
MMixerGetAudioPinDataRanges(
IN PMIXER_CONTEXT MixerContext,
IN HANDLE hDevice,
IN ULONG PinId,
IN OUT PKSMULTIPLE_ITEM * OutMultipleItem)
{
KSP_PIN PinProperty;
ULONG BytesReturned = 0;
MIXER_STATUS Status;
PKSMULTIPLE_ITEM MultipleItem;
/* retrieve size of data ranges buffer */
PinProperty.Reserved = 0;
PinProperty.PinId = PinId;
PinProperty.Property.Set = KSPROPSETID_Pin;
PinProperty.Property.Id = KSPROPERTY_PIN_DATARANGES;
PinProperty.Property.Flags = KSPROPERTY_TYPE_GET;
Status = MixerContext->Control(hDevice, IOCTL_KS_PROPERTY, (PVOID)&PinProperty, sizeof(KSP_PIN), (PVOID)NULL, 0, &BytesReturned);
if (Status != MM_STATUS_MORE_ENTRIES)
{
return Status;
}
MultipleItem = MixerContext->Alloc(BytesReturned);
if (!MultipleItem)
{
/* not enough memory */
return MM_STATUS_NO_MEMORY;
}
Status = MixerContext->Control(hDevice, IOCTL_KS_PROPERTY, (PVOID)&PinProperty, sizeof(KSP_PIN), (PVOID)MultipleItem, BytesReturned, &BytesReturned);
if (Status != MM_STATUS_SUCCESS)
{
/* failed */
MixerContext->Free(MultipleItem);
return Status;
}
/* save result */
*OutMultipleItem = MultipleItem;
return Status;
}
MIXER_STATUS
MMixerFindAudioDataRange(
PKSMULTIPLE_ITEM MultipleItem,
PKSDATARANGE_AUDIO * OutDataRangeAudio)
{
ULONG Index;
PKSDATARANGE_AUDIO DataRangeAudio;
PKSDATARANGE DataRange;
DataRange = (PKSDATARANGE) (MultipleItem + 1);
for(Index = 0; Index < MultipleItem->Count; Index++)
{
if (DataRange->FormatSize == sizeof(KSDATARANGE_AUDIO))
{
DataRangeAudio = (PKSDATARANGE_AUDIO)DataRange;
if (IsEqualGUIDAligned(&DataRangeAudio->DataRange.MajorFormat, &KSDATAFORMAT_TYPE_AUDIO) &&
IsEqualGUIDAligned(&DataRangeAudio->DataRange.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM) &&
IsEqualGUIDAligned(&DataRangeAudio->DataRange.Specifier, &KSDATAFORMAT_SPECIFIER_WAVEFORMATEX))
{
DPRINT("Min Sample %u Max Sample %u Min Bits %u Max Bits %u Max Channel %u\n", DataRangeAudio->MinimumSampleFrequency, DataRangeAudio->MaximumSampleFrequency,
DataRangeAudio->MinimumBitsPerSample, DataRangeAudio->MaximumBitsPerSample, DataRangeAudio->MaximumChannels);
*OutDataRangeAudio = DataRangeAudio;
return MM_STATUS_SUCCESS;
}
}
DataRange = (PKSDATARANGE)((ULONG_PTR)DataRange + DataRange->FormatSize);
}
return MM_STATUS_UNSUCCESSFUL;
}
MIXER_STATUS
MMixerOpenWavePin(
IN PMIXER_CONTEXT MixerContext,
IN PMIXER_LIST MixerList,
IN ULONG DeviceId,
IN ULONG PinId,
IN LPWAVEFORMATEX WaveFormatEx,
IN ACCESS_MASK DesiredAccess,
IN PIN_CREATE_CALLBACK CreateCallback,
IN PVOID Context,
OUT PHANDLE PinHandle)
{
PKSPIN_CONNECT PinConnect;
PKSDATAFORMAT_WAVEFORMATEX DataFormat;
LPMIXER_DATA MixerData;
NTSTATUS Status;
MIXER_STATUS MixerStatus;
MixerData = MMixerGetDataByDeviceId(MixerList, DeviceId);
if (!MixerData)
return MM_STATUS_INVALID_PARAMETER;
/* allocate pin connect */
PinConnect = MMixerAllocatePinConnect(MixerContext, sizeof(KSDATAFORMAT_WAVEFORMATEX) + WaveFormatEx->cbSize);
if (!PinConnect)
{
/* no memory */
return MM_STATUS_NO_MEMORY;
}
/* initialize pin connect struct */
MMixerInitializePinConnect(PinConnect, PinId);
/* get offset to dataformat */
DataFormat = (PKSDATAFORMAT_WAVEFORMATEX) (PinConnect + 1);
/* initialize with requested wave format */
MMixerInitializeDataFormat(DataFormat, WaveFormatEx);
if (CreateCallback)
{
/* let the callback handle the creation */
MixerStatus = CreateCallback(Context, DeviceId, PinId, MixerData->hDevice, PinConnect, DesiredAccess, PinHandle);
}
else
{
/* now create the pin */
Status = KsCreatePin(MixerData->hDevice, PinConnect, DesiredAccess, PinHandle);
/* normalize status */
if (Status == STATUS_SUCCESS)
MixerStatus = MM_STATUS_SUCCESS;
else
MixerStatus = MM_STATUS_UNSUCCESSFUL;
}
/* free create info */
MixerContext->Free(PinConnect);
/* done */
return MixerStatus;
}
VOID
MMixerCheckFormat(
IN PKSDATARANGE_AUDIO DataRangeAudio,
IN LPWAVE_INFO WaveInfo,
IN ULONG bInput)
{
ULONG Index, SampleFrequency;
ULONG Result = 0;
for(Index = 0; Index < AUDIO_TEST_RANGE; Index++)
{
SampleFrequency = TestRange[Index].SampleRate;
if (DataRangeAudio->MinimumSampleFrequency <= SampleFrequency && DataRangeAudio->MaximumSampleFrequency >= SampleFrequency)
{
/* the audio adapter supports the sample frequency */
if (DataRangeAudio->MinimumBitsPerSample <= 8 && DataRangeAudio->MaximumBitsPerSample >= 8)
{
Result |= TestRange[Index].Bit8Mono;
if (DataRangeAudio->MaximumChannels > 1)
{
/* check if pin supports the sample rate in 8-Bit Stereo */
Result |= TestRange[Index].Bit8Stereo;
}
}
if (DataRangeAudio->MinimumBitsPerSample <= 16 && DataRangeAudio->MaximumBitsPerSample >= 16)
{
/* check if pin supports the sample rate in 16-Bit Mono */
Result |= TestRange[Index].Bit16Mono;
if (DataRangeAudio->MaximumChannels > 1)
{
/* check if pin supports the sample rate in 16-Bit Stereo */
Result |= TestRange[Index].Bit16Stereo;
}
}
}
}
if (bInput)
WaveInfo->u.InCaps.dwFormats = Result;
else
WaveInfo->u.OutCaps.dwFormats = Result;
DPRINT("Format %lx bInput %u\n", Result, bInput);
}
MIXER_STATUS
MMixerInitializeWaveInfo(
IN PMIXER_CONTEXT MixerContext,
IN PMIXER_LIST MixerList,
IN LPMIXER_DATA MixerData,
IN LPWSTR DeviceName,
IN ULONG bWaveIn,
IN ULONG PinCount,
IN PULONG Pins)
{
MIXER_STATUS Status;
PKSMULTIPLE_ITEM MultipleItem;
PKSDATARANGE_AUDIO DataRangeAudio;
LPWAVE_INFO WaveInfo;
WaveInfo = (LPWAVE_INFO)MixerContext->Alloc(sizeof(WAVE_INFO));
if (!WaveInfo)
return MM_STATUS_NO_MEMORY;
if (PinCount > 1)
{
/* FIXME support multiple pins for wave device */
DPRINT1("Implement support for multiple pins\n");
//ASSERT(PinCount == 1);
}
/* initialize wave info */
WaveInfo->DeviceId = MixerData->DeviceId;
WaveInfo->PinId = Pins[0];
/* sanity check */
ASSERT(wcslen(DeviceName) < MAXPNAMELEN);
/* copy device name */
if (bWaveIn)
{
wcscpy(WaveInfo->u.InCaps.szPname, DeviceName);
}
else
{
wcscpy(WaveInfo->u.OutCaps.szPname, DeviceName);
}
/* FIXME determine manufacturer / product id */
if (bWaveIn)
{
WaveInfo->u.InCaps.wMid = MM_MICROSOFT;
WaveInfo->u.InCaps.wPid = MM_PID_UNMAPPED;
WaveInfo->u.InCaps.vDriverVersion = 1;
}
else
{
WaveInfo->u.OutCaps.wMid = MM_MICROSOFT;
WaveInfo->u.OutCaps.wPid = MM_PID_UNMAPPED;
WaveInfo->u.OutCaps.vDriverVersion = 1;
}
/* get audio pin data ranges */
Status = MMixerGetAudioPinDataRanges(MixerContext, MixerData->hDevice, Pins[0], &MultipleItem);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to get audio pin data ranges */
MixerContext->Free(WaveInfo);
return MM_STATUS_UNSUCCESSFUL;
}
/* find an KSDATARANGE_AUDIO range */
Status = MMixerFindAudioDataRange(MultipleItem, &DataRangeAudio);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to find audio pin data range */
MixerContext->Free(MultipleItem);
MixerContext->Free(WaveInfo);
return MM_STATUS_UNSUCCESSFUL;
}
/* store channel count */
if (bWaveIn)
{
WaveInfo->u.InCaps.wChannels = DataRangeAudio->MaximumChannels;
}
else
{
WaveInfo->u.OutCaps.wChannels = DataRangeAudio->MaximumChannels;
}
/* get all supported formats */
MMixerCheckFormat(DataRangeAudio, WaveInfo, bWaveIn);
/* free dataranges buffer */
MixerContext->Free(MultipleItem);
if (bWaveIn)
{
InsertTailList(&MixerList->WaveInList, &WaveInfo->Entry);
MixerList->WaveInListCount++;
}
else
{
InsertTailList(&MixerList->WaveOutList, &WaveInfo->Entry);
MixerList->WaveOutListCount++;
}
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerOpenWave(
IN PMIXER_CONTEXT MixerContext,
IN ULONG DeviceIndex,
IN ULONG bWaveIn,
IN LPWAVEFORMATEX WaveFormat,
IN PIN_CREATE_CALLBACK CreateCallback,
IN PVOID Context,
OUT PHANDLE PinHandle)
{
PMIXER_LIST MixerList;
MIXER_STATUS Status;
LPWAVE_INFO WaveInfo;
ACCESS_MASK DesiredAccess = 0;
/* verify mixer context */
Status = MMixerVerifyContext(MixerContext);
if (Status != MM_STATUS_SUCCESS)
{
/* invalid context passed */
return Status;
}
/* grab mixer list */
MixerList = (PMIXER_LIST)MixerContext->MixerContext;
/* find destination wave */
Status = MMixerGetWaveInfoByIndexAndType(MixerList, DeviceIndex, bWaveIn, &WaveInfo);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to find wave info */
return MM_STATUS_INVALID_PARAMETER;
}
/* get desired access */
if (bWaveIn)
{
DesiredAccess |= GENERIC_READ;
}
else
{
DesiredAccess |= GENERIC_WRITE;
}
/* now try open the pin */
return MMixerOpenWavePin(MixerContext, MixerList, WaveInfo->DeviceId, WaveInfo->PinId, WaveFormat, DesiredAccess, CreateCallback, Context, PinHandle);
}
MIXER_STATUS
MMixerWaveInCapabilities(
IN PMIXER_CONTEXT MixerContext,
IN ULONG DeviceIndex,
OUT LPWAVEINCAPSW Caps)
{
PMIXER_LIST MixerList;
MIXER_STATUS Status;
LPWAVE_INFO WaveInfo;
/* verify mixer context */
Status = MMixerVerifyContext(MixerContext);
if (Status != MM_STATUS_SUCCESS)
{
/* invalid context passed */
return Status;
}
/* grab mixer list */
MixerList = (PMIXER_LIST)MixerContext->MixerContext;
/* find destination wave */
Status = MMixerGetWaveInfoByIndexAndType(MixerList, DeviceIndex, TRUE, &WaveInfo);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to find wave info */
return MM_STATUS_UNSUCCESSFUL;
}
/* copy capabilities */
MixerContext->Copy(Caps, &WaveInfo->u.InCaps, sizeof(WAVEINCAPSW));
return MM_STATUS_SUCCESS;
}
MIXER_STATUS
MMixerWaveOutCapabilities(
IN PMIXER_CONTEXT MixerContext,
IN ULONG DeviceIndex,
OUT LPWAVEOUTCAPSW Caps)
{
PMIXER_LIST MixerList;
MIXER_STATUS Status;
LPWAVE_INFO WaveInfo;
/* verify mixer context */
Status = MMixerVerifyContext(MixerContext);
if (Status != MM_STATUS_SUCCESS)
{
/* invalid context passed */
return Status;
}
/* grab mixer list */
MixerList = (PMIXER_LIST)MixerContext->MixerContext;
/* find destination wave */
Status = MMixerGetWaveInfoByIndexAndType(MixerList, DeviceIndex, FALSE, &WaveInfo);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to find wave info */
return MM_STATUS_UNSUCCESSFUL;
}
/* copy capabilities */
MixerContext->Copy(Caps, &WaveInfo->u.OutCaps, sizeof(WAVEOUTCAPSW));
return MM_STATUS_SUCCESS;
}
ULONG
MMixerGetWaveInCount(
IN PMIXER_CONTEXT MixerContext)
{
PMIXER_LIST MixerList;
MIXER_STATUS Status;
/* verify mixer context */
Status = MMixerVerifyContext(MixerContext);
if (Status != MM_STATUS_SUCCESS)
{
/* invalid context passed */
return Status;
}
/* grab mixer list */
MixerList = (PMIXER_LIST)MixerContext->MixerContext;
return MixerList->WaveInListCount;
}
ULONG
MMixerGetWaveOutCount(
IN PMIXER_CONTEXT MixerContext)
{
PMIXER_LIST MixerList;
MIXER_STATUS Status;
/* verify mixer context */
Status = MMixerVerifyContext(MixerContext);
if (Status != MM_STATUS_SUCCESS)
{
/* invalid context passed */
return Status;
}
/* grab mixer list */
MixerList = (PMIXER_LIST)MixerContext->MixerContext;
return MixerList->WaveOutListCount;
}
MIXER_STATUS
MMixerSetWaveStatus(
IN PMIXER_CONTEXT MixerContext,
IN HANDLE PinHandle,
IN KSSTATE State)
{
KSPROPERTY Property;
ULONG Length;
MIXER_STATUS Status;
/* verify mixer context */
Status = MMixerVerifyContext(MixerContext);
if (Status != MM_STATUS_SUCCESS)
{
/* invalid context passed */
return Status;
}
/* setup property request */
Property.Set = KSPROPSETID_Connection;
Property.Id = KSPROPERTY_CONNECTION_STATE;
Property.Flags = KSPROPERTY_TYPE_SET;
return MixerContext->Control(PinHandle, IOCTL_KS_PROPERTY, &Property, sizeof(KSPROPERTY), &State, sizeof(KSSTATE), &Length);
}
MIXER_STATUS
MMixerSetWaveResetState(
IN PMIXER_CONTEXT MixerContext,
IN HANDLE PinHandle,
IN ULONG bBegin)
{
ULONG Length;
MIXER_STATUS Status;
KSRESET Reset;
/* verify mixer context */
Status = MMixerVerifyContext(MixerContext);
if (Status != MM_STATUS_SUCCESS)
{
/* invalid context passed */
return Status;
}
/* begin / stop reset */
Reset = (bBegin ? KSRESET_BEGIN : KSRESET_END);
return MixerContext->Control(PinHandle, IOCTL_KS_RESET_STATE, &Reset, sizeof(KSRESET), NULL, 0, &Length);
}
MIXER_STATUS
MMixerGetWaveDevicePath(
IN PMIXER_CONTEXT MixerContext,
IN ULONG bWaveIn,
IN ULONG DeviceId,
OUT LPWSTR * DevicePath)
{
PMIXER_LIST MixerList;
LPMIXER_DATA MixerData;
LPWAVE_INFO WaveInfo;
SIZE_T Length;
MIXER_STATUS Status;
/* verify mixer context */
Status = MMixerVerifyContext(MixerContext);
if (Status != MM_STATUS_SUCCESS)
{
/* invalid context passed */
return Status;
}
/* grab mixer list */
MixerList = (PMIXER_LIST)MixerContext->MixerContext;
/* find destination wave */
Status = MMixerGetWaveInfoByIndexAndType(MixerList, DeviceId, bWaveIn, &WaveInfo);
if (Status != MM_STATUS_SUCCESS)
{
/* failed to find wave info */
return MM_STATUS_INVALID_PARAMETER;
}
/* get associated device id */
MixerData = MMixerGetDataByDeviceId(MixerList, WaveInfo->DeviceId);
if (!MixerData)
return MM_STATUS_INVALID_PARAMETER;
/* calculate length */
Length = wcslen(MixerData->DeviceName)+1;
/* allocate destination buffer */
*DevicePath = MixerContext->Alloc(Length * sizeof(WCHAR));
if (!*DevicePath)
{
/* no memory */
return MM_STATUS_NO_MEMORY;
}
/* copy device path */
MixerContext->Copy(*DevicePath, MixerData->DeviceName, Length * sizeof(WCHAR));
/* done */
return MM_STATUS_SUCCESS;
}