wdmaud.h File Reference

#include <stdarg.h>
#include <windef.h>
#include <winbase.h>
#include <winreg.h>
#include <winuser.h>
#include <mmddk.h>
#include <mmebuddy.h>
#include <ks.h>
#include <ksmedia.h>
#include <interface.h>
#include <devioctl.h>
#include <setupapi.h>

Include dependency graph for wdmaud.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Macros
#define	WIN32_NO_STATUS
#define	_INC_WINDOWS
#define	COM_NO_WINDOWS_H

Functions
BOOL	WdmAudInitUserModeMixer (VOID)
ULONG	WdmAudGetWaveOutCount (VOID)
ULONG	WdmAudGetWaveInCount (VOID)
ULONG	WdmAudGetMixerCount (VOID)
MMRESULT	WdmAudGetNumWdmDevsByMMixer (IN MMDEVICE_TYPE DeviceType, OUT DWORD *DeviceCount)
MMRESULT	WdmAudCommitWaveBufferByLegacy (IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance, IN PVOID OffsetPtr, IN DWORD Length, IN PSOUND_OVERLAPPED Overlap, IN LPOVERLAPPED_COMPLETION_ROUTINE CompletionRoutine)
MMRESULT	WriteFileEx_Remixer (IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance, IN PVOID OffsetPtr, IN DWORD Length, IN PSOUND_OVERLAPPED Overlap, IN LPOVERLAPPED_COMPLETION_ROUTINE CompletionRoutine)
MMRESULT	WdmAudGetCapabilitiesByMMixer (IN PSOUND_DEVICE SoundDevice, IN DWORD DeviceId, OUT PVOID Capabilities, IN DWORD CapabilitiesSize)
MMRESULT	WdmAudOpenSoundDeviceByMMixer (IN struct _SOUND_DEVICE *SoundDevice, OUT PVOID *Handle)
MMRESULT	WdmAudCloseSoundDeviceByMMixer (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN PVOID Handle)
MMRESULT	WdmAudGetLineInfo (IN HANDLE hMixer, IN DWORD MixerId, IN LPMIXERLINEW MixLine, IN ULONG Flags)
MMRESULT	WdmAudGetLineControls (IN HANDLE hMixer, IN DWORD MixerId, IN LPMIXERLINECONTROLSW MixControls, IN ULONG Flags)
MMRESULT	WdmAudSetControlDetails (IN HANDLE hMixer, IN DWORD MixerId, IN LPMIXERCONTROLDETAILS MixDetails, IN ULONG Flags)
MMRESULT	WdmAudGetControlDetails (IN HANDLE hMixer, IN DWORD MixerId, IN LPMIXERCONTROLDETAILS MixDetails, IN ULONG Flags)
MMRESULT	WdmAudSetWaveDeviceFormatByMMixer (IN PSOUND_DEVICE_INSTANCE Instance, IN DWORD DeviceId, IN PWAVEFORMATEX WaveFormat, IN DWORD WaveFormatSize)
MMRESULT	WdmAudGetDeviceInterfaceStringByMMixer (IN MMDEVICE_TYPE DeviceType, IN DWORD DeviceId, IN LPWSTR Interface, IN DWORD InterfaceLength, OUT DWORD *InterfaceSize)
MMRESULT	WdmAudSetMixerDeviceFormatByMMixer (IN PSOUND_DEVICE_INSTANCE Instance, IN DWORD DeviceId, IN PWAVEFORMATEX WaveFormat, IN DWORD WaveFormatSize)
MMRESULT	WdmAudQueryMixerInfoByMMixer (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN DWORD DeviceId, IN UINT uMsg, IN LPVOID Parameter, IN DWORD Flags)
MMRESULT	WdmAudSetWaveStateByMMixer (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN BOOL bStart)
MMRESULT	WdmAudResetStreamByMMixer (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN MMDEVICE_TYPE DeviceType, IN BOOLEAN bStartReset)
MMRESULT	WdmAudGetWavePositionByMMixer (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN MMTIME *Time)
MMRESULT	WdmAudGetVolumeByMMixer (_In_ PSOUND_DEVICE_INSTANCE SoundDeviceInstance, _In_ DWORD DeviceId, _Out_ PDWORD pdwVolume)
MMRESULT	WdmAudSetVolumeByMMixer (_In_ PSOUND_DEVICE_INSTANCE SoundDeviceInstance, _In_ DWORD DeviceId, _In_ DWORD dwVolume)
MMRESULT	WdmAudCommitWaveBufferByMMixer (IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance, IN PVOID OffsetPtr, IN DWORD Length, IN PSOUND_OVERLAPPED Overlap, IN LPOVERLAPPED_COMPLETION_ROUTINE CompletionRoutine)
MMRESULT	WdmAudCleanupByMMixer (VOID)
MMRESULT	WdmAudCleanupByLegacy (VOID)
MMRESULT	WdmAudGetCapabilitiesByLegacy (IN PSOUND_DEVICE SoundDevice, IN DWORD DeviceId, OUT PVOID Capabilities, IN DWORD CapabilitiesSize)
MMRESULT	WdmAudOpenSoundDeviceByLegacy (IN PSOUND_DEVICE SoundDevice, OUT PVOID *Handle)
MMRESULT	WdmAudCloseSoundDeviceByLegacy (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN PVOID Handle)
MMRESULT	WdmAudGetDeviceInterfaceStringByLegacy (IN MMDEVICE_TYPE DeviceType, IN DWORD DeviceId, IN LPWSTR Interface, IN DWORD InterfaceLength, OUT DWORD *InterfaceSize)
MMRESULT	WdmAudSetMixerDeviceFormatByLegacy (IN PSOUND_DEVICE_INSTANCE Instance, IN DWORD DeviceId, IN PWAVEFORMATEX WaveFormat, IN DWORD WaveFormatSize)
MMRESULT	WdmAudQueryMixerInfoByLegacy (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN DWORD DeviceId, IN UINT uMsg, IN LPVOID Parameter, IN DWORD Flags)
MMRESULT	WdmAudSetWaveDeviceFormatByLegacy (IN PSOUND_DEVICE_INSTANCE Instance, IN DWORD DeviceId, IN PWAVEFORMATEX WaveFormat, IN DWORD WaveFormatSize)
MMRESULT	WdmAudSetWaveStateByLegacy (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN BOOL bStart)
MMRESULT	WdmAudResetStreamByLegacy (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN MMDEVICE_TYPE DeviceType, IN BOOLEAN bStartReset)
MMRESULT	WdmAudGetWavePositionByLegacy (IN struct _SOUND_DEVICE_INSTANCE *SoundDeviceInstance, IN MMTIME *Time)
MMRESULT	WdmAudGetVolumeByLegacy (_In_ PSOUND_DEVICE_INSTANCE SoundDeviceInstance, _In_ DWORD DeviceId, _Out_ PDWORD pdwVolume)
MMRESULT	WdmAudSetVolumeByLegacy (_In_ PSOUND_DEVICE_INSTANCE SoundDeviceInstance, _In_ DWORD DeviceId, _In_ DWORD dwVolume)
MMRESULT	WriteFileEx_Committer2 (IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance, IN PVOID OffsetPtr, IN DWORD Length, IN PSOUND_OVERLAPPED Overlap, IN LPOVERLAPPED_COMPLETION_ROUTINE CompletionRoutine)
MMRESULT	WdmAudGetNumWdmDevsByLegacy (IN MMDEVICE_TYPE DeviceType, OUT DWORD *DeviceCount)
DWORD WINAPI	MixerEventThreadRoutine (LPVOID Parameter)

Macro Definition Documentation

_INC_WINDOWS

#define _INC_WINDOWS

Definition at line 7 of file wdmaud.h.

COM_NO_WINDOWS_H

#define COM_NO_WINDOWS_H

Definition at line 8 of file wdmaud.h.

WIN32_NO_STATUS

#define WIN32_NO_STATUS

Definition at line 6 of file wdmaud.h.

Function Documentation

MixerEventThreadRoutine()

DWORD WINAPI MixerEventThreadRoutine

(

LPVOID

Parameter

)

Definition at line 29 of file legacy.c.

{
    HANDLE WaitObjects[2];
    DWORD dwResult;
    MMRESULT Result;
    WDMAUD_DEVICE_INFO DeviceInfo;
    PSOUND_DEVICE_INSTANCE Instance = (PSOUND_DEVICE_INSTANCE)Parameter;
 
    /* setup wait objects */
    WaitObjects[0] = Instance->hNotifyEvent;
    WaitObjects[1] = Instance->hStopEvent;
 
    /* zero device info */
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
 
    DeviceInfo.hDevice = Instance->Handle;
    DeviceInfo.DeviceType = MIXER_DEVICE_TYPE;
 
    do
    {
        dwResult = WaitForMultipleObjects(2, WaitObjects, FALSE, INFINITE);
 
        if (dwResult == WAIT_OBJECT_0 + 1)
        {
            /* stop event was signalled */
            break;
        }
 
        do
        {
            Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                                   IOCTL_GET_MIXER_EVENT,
                                                   (LPVOID) &DeviceInfo,
                                                   sizeof(WDMAUD_DEVICE_INFO),
                                                   (LPVOID) &DeviceInfo,
                                                   sizeof(WDMAUD_DEVICE_INFO),
                                                   NULL);
 
            if (Result == MMSYSERR_NOERROR)
            {
                DriverCallback(Instance->WinMM.ClientCallback,
                               HIWORD(Instance->WinMM.Flags),
                               Instance->WinMM.Handle,
                               DeviceInfo.u.MixerEvent.NotificationType,
                               Instance->WinMM.ClientCallbackInstanceData,
                               (DWORD_PTR)DeviceInfo.u.MixerEvent.Value,
                               0);
            }
        }while(Result == MMSYSERR_NOERROR);
    }while(TRUE);
 
    /* done */
    return 0;
}

Referenced by WdmAudSetMixerDeviceFormatByLegacy().

WdmAudCleanupByLegacy()

MMRESULT WdmAudCleanupByLegacy

(

VOID

)

WdmAudCleanupByMMixer()

MMRESULT WdmAudCleanupByMMixer

(

VOID

)

WdmAudCloseSoundDeviceByLegacy()

MMRESULT WdmAudCloseSoundDeviceByLegacy	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN PVOID	Handle
	)

Definition at line 320 of file legacy.c.

{
    WDMAUD_DEVICE_INFO DeviceInfo;
    MMRESULT Result;
    MMDEVICE_TYPE DeviceType;
    PSOUND_DEVICE SoundDevice;
 
    Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    if ( OpenCount == 0 )
    {
        return MMSYSERR_NOERROR;
    }
 
    SND_ASSERT( KernelHandle != INVALID_HANDLE_VALUE );
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    if (SoundDeviceInstance->Handle != (PVOID)KernelHandle)
    {
        ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
 
        DeviceInfo.DeviceType = DeviceType;
        DeviceInfo.hDevice = SoundDeviceInstance->Handle;
 
         /* First stop the stream */
         if (DeviceType != MIXER_DEVICE_TYPE)
         {
             DeviceInfo.u.State = KSSTATE_PAUSE;
             SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_SETDEVICE_STATE,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                            sizeof(WDMAUD_DEVICE_INFO),
                                            NULL);
 
             DeviceInfo.u.State = KSSTATE_ACQUIRE;
             SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_SETDEVICE_STATE,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                            sizeof(WDMAUD_DEVICE_INFO),
                                            NULL);
 
 
             DeviceInfo.u.State = KSSTATE_STOP;
             SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_SETDEVICE_STATE,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                            sizeof(WDMAUD_DEVICE_INFO),
                                            NULL);
        }
 
        SyncOverlappedDeviceIoControl(KernelHandle,
                                      IOCTL_CLOSE_WDMAUD,
                                      (LPVOID) &DeviceInfo,
                                      sizeof(WDMAUD_DEVICE_INFO),
                                      (LPVOID) &DeviceInfo,
                                      sizeof(WDMAUD_DEVICE_INFO),
                                      NULL);
    }
 
    if (DeviceType == MIXER_DEVICE_TYPE)
    {
        SetEvent(SoundDeviceInstance->hStopEvent);
        CloseHandle(SoundDeviceInstance->hStopEvent);
        CloseHandle(SoundDeviceInstance->hNotifyEvent);
    }
 
    --OpenCount;
 
    if ( OpenCount < 1 )
    {
        CloseHandle(KernelHandle);
        KernelHandle = INVALID_HANDLE_VALUE;
    }
 
    return MMSYSERR_NOERROR;
}

WdmAudCloseSoundDeviceByMMixer()

MMRESULT WdmAudCloseSoundDeviceByMMixer	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN PVOID	Handle
	)

Definition at line 557 of file mmixer.c.

{
    MMDEVICE_TYPE DeviceType;
    PSOUND_DEVICE SoundDevice;
    MMRESULT Result;
 
    Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    if (DeviceType == MIXER_DEVICE_TYPE)
    {
        /* no op */
        return MMSYSERR_NOERROR;
    }
    else if (DeviceType == WAVE_IN_DEVICE_TYPE || DeviceType == WAVE_OUT_DEVICE_TYPE)
    {
        /* make sure the pin is stopped */
        MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_PAUSE);
        MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_ACQUIRE);
        MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_STOP);
 
        CloseHandle(Handle);
        return MMSYSERR_NOERROR;
    }
 
    /* midi is not supported */
    return MMSYSERR_ERROR;
}

WdmAudCommitWaveBufferByLegacy()

MMRESULT WdmAudCommitWaveBufferByLegacy	(	IN PSOUND_DEVICE_INSTANCE	SoundDeviceInstance,
		IN PVOID	OffsetPtr,
		IN DWORD	Length,
		IN PSOUND_OVERLAPPED	Overlap,
		IN LPOVERLAPPED_COMPLETION_ROUTINE	CompletionRoutine
	)

Definition at line 615 of file legacy.c.

{
    HANDLE Handle;
    MMRESULT Result;
    PWDMAUD_DEVICE_INFO DeviceInfo;
    PSOUND_DEVICE SoundDevice;
    MMDEVICE_TYPE DeviceType;
    BOOL Ret;
 
    VALIDATE_MMSYS_PARAMETER( SoundDeviceInstance );
    VALIDATE_MMSYS_PARAMETER( OffsetPtr );
    VALIDATE_MMSYS_PARAMETER( Overlap );
    VALIDATE_MMSYS_PARAMETER( CompletionRoutine );
 
    GetSoundDeviceInstanceHandle(SoundDeviceInstance, &Handle);
    SND_ASSERT(Handle);
 
    Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    DeviceInfo = (PWDMAUD_DEVICE_INFO)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WDMAUD_DEVICE_INFO));
    if (!DeviceInfo)
    {
        // no memory
        return MMSYSERR_NOMEM;
    }
 
    DeviceInfo->Header.FrameExtent = Length;
    if (DeviceType == WAVE_OUT_DEVICE_TYPE)
    {
        DeviceInfo->Header.DataUsed = Length;
    }
    DeviceInfo->Header.Data = OffsetPtr;
    DeviceInfo->Header.Size = sizeof(WDMAUD_DEVICE_INFO);
    DeviceInfo->Header.PresentationTime.Numerator = 1;
    DeviceInfo->Header.PresentationTime.Denominator = 1;
    DeviceInfo->hDevice = Handle;
    DeviceInfo->DeviceType = DeviceType;
 
 
    // create completion event
    Overlap->Standard.hEvent = Handle = CreateEventW(NULL, FALSE, FALSE, NULL);
    if (Overlap->Standard.hEvent == NULL)
    {
        // no memory
        HeapFree(GetProcessHeap(), 0, DeviceInfo);
        return MMSYSERR_NOMEM;
    }
 
    Overlap->OriginalCompletionRoutine = CompletionRoutine;
    Overlap->CompletionContext = (PVOID)DeviceInfo;
 
    if (DeviceType == WAVE_OUT_DEVICE_TYPE)
    {
        Ret = WriteFileEx(KernelHandle, DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), (LPOVERLAPPED)Overlap, LegacyCompletionRoutine);
        if (Ret)
            WaitForSingleObjectEx (KernelHandle, INFINITE, TRUE);
    }
    else if (DeviceType == WAVE_IN_DEVICE_TYPE)
    {
        Ret = ReadFileEx(KernelHandle, DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), (LPOVERLAPPED)Overlap, LegacyCompletionRoutine);
        if (Ret)
            WaitForSingleObjectEx (KernelHandle, INFINITE, TRUE);
    }
 
    // close event handle
    CloseHandle(Handle);
 
    return MMSYSERR_NOERROR;
}

WdmAudCommitWaveBufferByMMixer()

MMRESULT WdmAudCommitWaveBufferByMMixer	(	IN PSOUND_DEVICE_INSTANCE	SoundDeviceInstance,
		IN PVOID	OffsetPtr,
		IN DWORD	Length,
		IN PSOUND_OVERLAPPED	Overlap,
		IN LPOVERLAPPED_COMPLETION_ROUTINE	CompletionRoutine
	)

Definition at line 945 of file mmixer.c.

{
    PSOUND_DEVICE SoundDevice;
    MMDEVICE_TYPE DeviceType;
    MMRESULT Result;
    ULONG IoCtl;
    KSSTREAM_HEADER* lpHeader;
    NTSTATUS Status;
 
    Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    lpHeader = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(KSSTREAM_HEADER));
    if ( ! lpHeader )
    {
        /* no memory */
        return MMSYSERR_NOMEM;
    }
 
    /* setup stream packet */
    lpHeader->Size = sizeof(KSSTREAM_HEADER);
    lpHeader->PresentationTime.Numerator = 1;
    lpHeader->PresentationTime.Denominator = 1;
    lpHeader->Data = OffsetPtr;
    lpHeader->FrameExtent = Length;
    Overlap->CompletionContext = lpHeader;
    Overlap->OriginalCompletionRoutine = CompletionRoutine;
    IoCtl = (DeviceType == WAVE_OUT_DEVICE_TYPE ? IOCTL_KS_WRITE_STREAM : IOCTL_KS_READ_STREAM);
 
    if (DeviceType == WAVE_OUT_DEVICE_TYPE)
    {
        lpHeader->DataUsed = Length;
    }
 
    Status = NtDeviceIoControlFile(SoundDeviceInstance->Handle,
                                   NULL,
                                   CommitWaveBufferApc,
                                   NULL,
                                   (PIO_STATUS_BLOCK)Overlap,
                                   IoCtl,
                                   NULL,
                                   0,
                                   lpHeader,
                                   sizeof(KSSTREAM_HEADER));
 
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("NtDeviceIoControlFile() failed with status %08lx\n", Status);
        return MMSYSERR_ERROR;
    }
 
    return MMSYSERR_NOERROR;
}

WdmAudGetCapabilitiesByLegacy()

MMRESULT WdmAudGetCapabilitiesByLegacy	(	IN PSOUND_DEVICE	SoundDevice,
		IN DWORD	DeviceId,
		OUT PVOID	Capabilities,
		IN DWORD	CapabilitiesSize
	)

Definition at line 133 of file legacy.c.

{
    MMRESULT Result;
    MMDEVICE_TYPE DeviceType;
    WDMAUD_DEVICE_INFO DeviceInfo;
 
    SND_ASSERT( SoundDevice );
    SND_ASSERT( Capabilities );
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    if ( ! MMSUCCESS(Result) )
        return Result;
 
    SND_TRACE(L"WDMAUD - GetWdmDeviceCapabilities DeviceType %u DeviceId %u\n", DeviceType, DeviceId);
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.DeviceType = DeviceType;
    DeviceInfo.DeviceIndex = DeviceId;
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_GETCAPABILITIES,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    /* This is pretty much a big hack right now */
    switch ( DeviceType )
    {
        case MIXER_DEVICE_TYPE:
        {
            LPMIXERCAPSW MixerCaps = (LPMIXERCAPSW) Capabilities;
 
            DeviceInfo.u.MixCaps.szPname[MAXPNAMELEN-1] = L'\0';
            CopyWideString(MixerCaps->szPname, DeviceInfo.u.MixCaps.szPname);
 
            MixerCaps->cDestinations = DeviceInfo.u.MixCaps.cDestinations;
            MixerCaps->fdwSupport = DeviceInfo.u.MixCaps.fdwSupport;
            MixerCaps->vDriverVersion = DeviceInfo.u.MixCaps.vDriverVersion;
            MixerCaps->wMid = DeviceInfo.u.MixCaps.wMid;
            MixerCaps->wPid = DeviceInfo.u.MixCaps.wPid;
            break;
        }
        case WAVE_OUT_DEVICE_TYPE :
        {
            LPWAVEOUTCAPSW WaveOutCaps = (LPWAVEOUTCAPSW) Capabilities;
 
            DeviceInfo.u.WaveOutCaps.szPname[MAXPNAMELEN-1] = L'\0';
            WaveOutCaps->wMid = DeviceInfo.u.WaveOutCaps.wMid;
            WaveOutCaps->wPid = DeviceInfo.u.WaveOutCaps.wPid;
 
            WaveOutCaps->vDriverVersion = DeviceInfo.u.WaveOutCaps.vDriverVersion;
            CopyWideString(WaveOutCaps->szPname, DeviceInfo.u.WaveOutCaps.szPname);
 
            WaveOutCaps->dwFormats = DeviceInfo.u.WaveOutCaps.dwFormats;
            WaveOutCaps->wChannels = DeviceInfo.u.WaveOutCaps.wChannels;
            WaveOutCaps->dwSupport = DeviceInfo.u.WaveOutCaps.dwSupport;
            break;
        }
        case WAVE_IN_DEVICE_TYPE :
        {
            LPWAVEINCAPSW WaveInCaps = (LPWAVEINCAPSW) Capabilities;
 
            DeviceInfo.u.WaveInCaps.szPname[MAXPNAMELEN-1] = L'\0';
 
            WaveInCaps->wMid = DeviceInfo.u.WaveInCaps.wMid;
            WaveInCaps->wPid = DeviceInfo.u.WaveInCaps.wPid;
 
            WaveInCaps->vDriverVersion = DeviceInfo.u.WaveInCaps.vDriverVersion;
            CopyWideString(WaveInCaps->szPname, DeviceInfo.u.WaveInCaps.szPname);
 
            WaveInCaps->dwFormats = DeviceInfo.u.WaveInCaps.dwFormats;
            WaveInCaps->wChannels = DeviceInfo.u.WaveInCaps.wChannels;
            WaveInCaps->wReserved1 = 0;
            break;
        }
        case MIDI_IN_DEVICE_TYPE :
        {
            LPMIDIINCAPSW MidiInCaps = (LPMIDIINCAPSW)Capabilities;
 
            DeviceInfo.u.MidiInCaps.szPname[MAXPNAMELEN-1] = L'\0';
 
            MidiInCaps->vDriverVersion = DeviceInfo.u.MidiInCaps.vDriverVersion;
            MidiInCaps->wMid = DeviceInfo.u.MidiInCaps.wMid;
            MidiInCaps->wPid = DeviceInfo.u.MidiInCaps.wPid;
            MidiInCaps->dwSupport = DeviceInfo.u.MidiInCaps.dwSupport;
 
            CopyWideString(MidiInCaps->szPname, DeviceInfo.u.MidiInCaps.szPname);
            break;
        }
        case MIDI_OUT_DEVICE_TYPE :
        {
            LPMIDIOUTCAPSW MidiOutCaps = (LPMIDIOUTCAPSW)Capabilities;
 
            DeviceInfo.u.MidiOutCaps.szPname[MAXPNAMELEN-1] = L'\0';
 
            MidiOutCaps->vDriverVersion = DeviceInfo.u.MidiOutCaps.vDriverVersion;
            MidiOutCaps->wMid = DeviceInfo.u.MidiOutCaps.wMid;
            MidiOutCaps->wPid = DeviceInfo.u.MidiOutCaps.wPid;
            MidiOutCaps->dwSupport = DeviceInfo.u.MidiOutCaps.dwSupport;
 
            CopyWideString(MidiOutCaps->szPname, DeviceInfo.u.MidiOutCaps.szPname);
            break;
        }
    }
 
    return MMSYSERR_NOERROR;
}

WdmAudGetCapabilitiesByMMixer()

MMRESULT WdmAudGetCapabilitiesByMMixer	(	IN PSOUND_DEVICE	SoundDevice,
		IN DWORD	DeviceId,
		OUT PVOID	Capabilities,
		IN DWORD	CapabilitiesSize
	)

Definition at line 514 of file mmixer.c.

{
    MMDEVICE_TYPE DeviceType;
    MMRESULT Result;
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    if (DeviceType == MIXER_DEVICE_TYPE)
    {
        return WdmAudGetMixerCapabilities(DeviceId, (LPMIXERCAPSW)Capabilities);
    }
    else if (DeviceType == WAVE_OUT_DEVICE_TYPE)
    {
        return WdmAudGetWaveOutCapabilities(DeviceId, (LPWAVEOUTCAPSW)Capabilities);
    }
    else if (DeviceType == WAVE_IN_DEVICE_TYPE)
    {
        return WdmAudGetWaveInCapabilities(DeviceId, (LPWAVEINCAPSW)Capabilities);
    }
    else
    {
        // not supported
        return MMSYSERR_ERROR;
    }
}

WdmAudGetControlDetails()

MMRESULT WdmAudGetControlDetails	(	IN HANDLE	hMixer,
		IN DWORD	MixerId,
		IN LPMIXERCONTROLDETAILS	MixDetails,
		IN ULONG	Flags
	)

Definition at line 440 of file mmixer.c.

{
    if (MMixerGetControlDetails(&MixerContext, hMixer, MixerId, Flags, MixDetails) == MM_STATUS_SUCCESS)
        return MMSYSERR_NOERROR;
 
    return MMSYSERR_ERROR;
}

Referenced by WdmAudDeviceControl(), WdmAudGetVolumeByMMixer(), and WdmAudQueryMixerInfoByMMixer().

WdmAudGetDeviceInterfaceStringByLegacy()

MMRESULT WdmAudGetDeviceInterfaceStringByLegacy	(	IN MMDEVICE_TYPE	DeviceType,
		IN DWORD	DeviceId,
		IN LPWSTR	Interface,
		IN DWORD	InterfaceLength,
		OUT DWORD *	InterfaceSize
	)

Definition at line 742 of file legacy.c.

{
    WDMAUD_DEVICE_INFO DeviceInfo;
    MMRESULT Result;
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.DeviceType = DeviceType;
    DeviceInfo.DeviceIndex = DeviceId;
 
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_QUERYDEVICEINTERFACESTRING,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
 
    if (!Interface)
    {
        SND_ASSERT(InterfaceSize);
 
        *InterfaceSize = DeviceInfo.u.Interface.DeviceInterfaceStringSize;
        return MMSYSERR_NOERROR;
    }
 
    if (InterfaceLength < DeviceInfo.u.Interface.DeviceInterfaceStringSize)
    {
        /* buffer is too small */
        return MMSYSERR_MOREDATA;
    }
 
    DeviceInfo.u.Interface.DeviceInterfaceStringSize = InterfaceLength;
    DeviceInfo.u.Interface.DeviceInterfaceString = Interface;
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_QUERYDEVICEINTERFACESTRING,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    if (  MMSUCCESS(Result) && InterfaceLength > 2)
    {
        Interface[1] = L'\\';
        Interface[InterfaceLength-1] = L'\0';
    }
 
    return Result;
}

WdmAudGetDeviceInterfaceStringByMMixer()

MMRESULT WdmAudGetDeviceInterfaceStringByMMixer	(	IN MMDEVICE_TYPE	DeviceType,
		IN DWORD	DeviceId,
		IN LPWSTR	Interface,
		IN DWORD	InterfaceLength,
		OUT DWORD *	InterfaceSize
	)

Definition at line 659 of file mmixer.c.

{
    /* FIXME */
    return MMSYSERR_NOTSUPPORTED;
}

WdmAudGetLineControls()

MMRESULT WdmAudGetLineControls	(	IN HANDLE	hMixer,
		IN DWORD	MixerId,
		IN LPMIXERLINECONTROLSW	MixControls,
		IN ULONG	Flags
	)

Definition at line 413 of file mmixer.c.

{
    if (MMixerGetLineControls(&MixerContext, hMixer, MixerId, Flags, MixControls) == MM_STATUS_SUCCESS)
        return MMSYSERR_NOERROR;
 
    return MMSYSERR_ERROR;
}

Referenced by WdmAudDeviceControl(), WdmAudGetVolumeByMMixer(), WdmAudQueryMixerInfoByMMixer(), and WdmAudSetVolumeByMMixer().

WdmAudGetLineInfo()

MMRESULT WdmAudGetLineInfo	(	IN HANDLE	hMixer,
		IN DWORD	MixerId,
		IN LPMIXERLINEW	MixLine,
		IN ULONG	Flags
	)

Definition at line 400 of file mmixer.c.

{
    if (MMixerGetLineInfo(&MixerContext, hMixer, MixerId, Flags, MixLine)  == MM_STATUS_SUCCESS)
        return MMSYSERR_NOERROR;
 
    return MMSYSERR_ERROR;
}

Referenced by WdmAudDeviceControl(), WdmAudGetVolumeByMMixer(), WdmAudQueryMixerInfoByMMixer(), and WdmAudSetVolumeByMMixer().

WdmAudGetMixerCount()

ULONG WdmAudGetMixerCount

(

VOID

)

WdmAudGetNumWdmDevsByLegacy()

MMRESULT WdmAudGetNumWdmDevsByLegacy	(	IN MMDEVICE_TYPE	DeviceType,
		OUT DWORD *	DeviceCount
	)

Definition at line 98 of file legacy.c.

{
    MMRESULT Result;
    WDMAUD_DEVICE_INFO DeviceInfo;
 
    VALIDATE_MMSYS_PARAMETER( KernelHandle != INVALID_HANDLE_VALUE );
    VALIDATE_MMSYS_PARAMETER( IS_VALID_SOUND_DEVICE_TYPE(DeviceType) );
    VALIDATE_MMSYS_PARAMETER( DeviceCount );
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.DeviceType = DeviceType;
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_GETNUMDEVS_TYPE,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    if ( ! MMSUCCESS( Result ) )
    {
        SND_ERR(L"Call to IOCTL_GETNUMDEVS_TYPE failed\n");
        *DeviceCount = 0;
        return TranslateInternalMmResult(Result);
    }
 
    *DeviceCount = DeviceInfo.DeviceCount;
 
    return MMSYSERR_NOERROR;
}

WdmAudGetNumWdmDevsByMMixer()

MMRESULT WdmAudGetNumWdmDevsByMMixer	(	IN MMDEVICE_TYPE	DeviceType,
		OUT DWORD *	DeviceCount
	)

Definition at line 596 of file mmixer.c.

{
    switch(DeviceType)
    {
        case MIXER_DEVICE_TYPE:
            *DeviceCount = MMixerGetCount(&MixerContext);
            break;
        case WAVE_OUT_DEVICE_TYPE:
            *DeviceCount = MMixerGetWaveOutCount(&MixerContext);
            break;
        case WAVE_IN_DEVICE_TYPE:
            *DeviceCount = MMixerGetWaveInCount(&MixerContext);
            break;
        default:
            *DeviceCount = 0;
    }
    return MMSYSERR_NOERROR;
}

WdmAudGetVolumeByLegacy()

MMRESULT WdmAudGetVolumeByLegacy	(	_In_ PSOUND_DEVICE_INSTANCE	SoundDeviceInstance,
		_In_ DWORD	DeviceId,
		_Out_ PDWORD	pdwVolume
	)

Definition at line 854 of file legacy.c.

{
    /* FIXME */
    return MMSYSERR_NOTSUPPORTED;
}

WdmAudGetVolumeByMMixer()

MMRESULT WdmAudGetVolumeByMMixer	(	_In_ PSOUND_DEVICE_INSTANCE	SoundDeviceInstance,
		_In_ DWORD	DeviceId,
		_Out_ PDWORD	pdwVolume
	)

Definition at line 809 of file mmixer.c.

{
    MMRESULT Result;
    MIXERLINE MixLine;
    MIXERCONTROL MixControl;
    MIXERLINECONTROLS MixLineControls;
    MIXERCONTROLDETAILS MixControlDetails;
    MIXERCONTROLDETAILS_UNSIGNED MixControlDetailsU[2]; // For 2 (stereo) channels
 
    MixLine.cbStruct = sizeof(MixLine);
    MixLine.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
 
    /* Get line info */
    Result = WdmAudGetLineInfo(SoundDeviceInstance->Handle,
                               DeviceId,
                               &MixLine,
                               MIXER_OBJECTF_MIXER | MIXER_GETLINEINFOF_COMPONENTTYPE);
    if (!MMSUCCESS(Result))
        return TranslateInternalMmResult(Result);
 
    MixLineControls.cbStruct = sizeof(MixLineControls);
    MixLineControls.dwLineID = MixLine.dwLineID;
    MixLineControls.dwControlType = MIXERCONTROL_CONTROLTYPE_VOLUME;
    MixLineControls.cControls = 1;
    MixLineControls.cbmxctrl = sizeof(MixControl);
    MixLineControls.pamxctrl = &MixControl;
 
    /* Get line controls */
    Result = WdmAudGetLineControls(SoundDeviceInstance->Handle,
                                   DeviceId,
                                   &MixLineControls,
                                   MIXER_OBJECTF_MIXER | MIXER_GETLINECONTROLSF_ONEBYTYPE);
    if (!MMSUCCESS(Result))
        return TranslateInternalMmResult(Result);
 
    MixControlDetails.cbStruct = sizeof(MixControlDetails);
    MixControlDetails.dwControlID = MixControl.dwControlID;
    MixControlDetails.cChannels = MixLine.cChannels;
    MixControlDetails.cMultipleItems = 0;
    MixControlDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
    MixControlDetails.paDetails = MixControlDetailsU;
 
    /* Get volume control details */
    Result = WdmAudGetControlDetails(SoundDeviceInstance->Handle,
                                     DeviceId,
                                     &MixControlDetails,
                                     MIXER_OBJECTF_MIXER);
    if (MMSUCCESS(Result))
        *pdwVolume = MAKELONG(LOWORD(MixControlDetailsU[0].dwValue), HIWORD(MixControlDetailsU[1].dwValue));
 
    return Result;
}

WdmAudGetWaveInCount()

ULONG WdmAudGetWaveInCount

(

VOID

)

WdmAudGetWaveOutCount()

ULONG WdmAudGetWaveOutCount

(

VOID

)

WdmAudGetWavePositionByLegacy()

MMRESULT WdmAudGetWavePositionByLegacy	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN MMTIME *	Time
	)

Definition at line 807 of file legacy.c.

{
    MMRESULT Result;
    PSOUND_DEVICE SoundDevice;
    WDMAUD_DEVICE_INFO DeviceInfo;
    MMDEVICE_TYPE DeviceType;
    HANDLE Handle;
 
    Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    Result = GetSoundDeviceInstanceHandle(SoundDeviceInstance, &Handle);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.hDevice = Handle;
    DeviceInfo.DeviceType = DeviceType;
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_GETPOS,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    Time->wType = TIME_BYTES;
    Time->u.cb = (DWORD)DeviceInfo.u.Position;
 
    return MMSYSERR_NOERROR;
}

WdmAudGetWavePositionByMMixer()

MMRESULT WdmAudGetWavePositionByMMixer	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN MMTIME *	Time
	)

Definition at line 775 of file mmixer.c.

{
    PSOUND_DEVICE SoundDevice;
    MMDEVICE_TYPE DeviceType;
    MIXER_STATUS Status;
    MMRESULT Result;
    DWORD Position;
 
    Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
    if (!MMSUCCESS(Result))
        return TranslateInternalMmResult(Result);
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT(Result == MMSYSERR_NOERROR);
 
    if (DeviceType == WAVE_IN_DEVICE_TYPE || DeviceType == WAVE_OUT_DEVICE_TYPE)
    {
        Status = MMixerGetWavePosition(&MixerContext, SoundDeviceInstance->Handle, &Position);
        if (Status == MM_STATUS_SUCCESS)
        {
            /* Store position */
            Time->wType = TIME_BYTES;
            Time->u.cb = Position;
 
            /* Completed successfully */
            return MMSYSERR_NOERROR;
        }
    }
    return MMSYSERR_NOTSUPPORTED;
}

WdmAudInitUserModeMixer()

BOOL WdmAudInitUserModeMixer

(

VOID

)

WdmAudOpenSoundDeviceByLegacy()

MMRESULT WdmAudOpenSoundDeviceByLegacy	(	IN PSOUND_DEVICE	SoundDevice,
		OUT PVOID *	Handle
	)

Definition at line 255 of file legacy.c.

{
    HDEVINFO hDevInfo;
    SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;
    GUID SWBusGuid = {STATIC_KSCATEGORY_WDMAUD};
    PSP_DEVICE_INTERFACE_DETAIL_DATA_W DeviceInterfaceDetailData;
 
    if ( KernelHandle == INVALID_HANDLE_VALUE )
    {
        hDevInfo = SetupDiGetClassDevsW(&SWBusGuid, NULL, NULL,  DIGCF_DEVICEINTERFACE| DIGCF_PRESENT);
        if (!hDevInfo)
        {
            // failed
            return MMSYSERR_ERROR;
        }
 
        DeviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
        if (!SetupDiEnumDeviceInterfaces(hDevInfo, NULL, &SWBusGuid, 0, &DeviceInterfaceData))
        {
            // failed
            SetupDiDestroyDeviceInfoList(hDevInfo);
            return MMSYSERR_ERROR;
        }
 
        DeviceInterfaceDetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA_W)HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR) + sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W));
        if (!DeviceInterfaceDetailData)
        {
            // failed
            SetupDiDestroyDeviceInfoList(hDevInfo);
            return MMSYSERR_ERROR;
        }
 
        DeviceInterfaceDetailData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W);
        if (!SetupDiGetDeviceInterfaceDetailW(hDevInfo,  &DeviceInterfaceData, DeviceInterfaceDetailData,MAX_PATH * sizeof(WCHAR) + sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W), NULL, NULL))
        {
            // failed
            HeapFree(GetProcessHeap(), 0, DeviceInterfaceDetailData);
            SetupDiDestroyDeviceInfoList(hDevInfo);
            return MMSYSERR_ERROR;
        }
        SND_TRACE(L"Opening wdmaud device '%s'\n",DeviceInterfaceDetailData->DevicePath);
        KernelHandle = CreateFileW(DeviceInterfaceDetailData->DevicePath,
            GENERIC_READ | GENERIC_WRITE,
            0,
            NULL,
            OPEN_EXISTING,
            FILE_FLAG_OVERLAPPED,
            NULL);
 
        HeapFree(GetProcessHeap(), 0, DeviceInterfaceDetailData);
        SetupDiDestroyDeviceInfoList(hDevInfo);
    }
 
 
    if ( KernelHandle == INVALID_HANDLE_VALUE )
        return MMSYSERR_ERROR;
 
    ++ OpenCount;
        return MMSYSERR_NOERROR;
 
}

WdmAudOpenSoundDeviceByMMixer()

MMRESULT WdmAudOpenSoundDeviceByMMixer	(	IN struct _SOUND_DEVICE *	SoundDevice,
		OUT PVOID *	Handle
	)

Definition at line 546 of file mmixer.c.

{
    if (WdmAudInitUserModeMixer())
        return MMSYSERR_NOERROR;
    else
        return MMSYSERR_ERROR;
}

WdmAudQueryMixerInfoByLegacy()

MMRESULT WdmAudQueryMixerInfoByLegacy	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN DWORD	DeviceId,
		IN UINT	uMsg,
		IN LPVOID	Parameter,
		IN DWORD	Flags
	)

Definition at line 902 of file legacy.c.

{
    MMRESULT Result;
    WDMAUD_DEVICE_INFO DeviceInfo;
    HANDLE Handle;
    DWORD IoControlCode;
    LPMIXERLINEW MixLine;
    LPMIXERLINECONTROLSW MixControls;
    LPMIXERCONTROLDETAILS MixDetails;
 
    SND_TRACE(L"uMsg %x Flags %x\n", uMsg, Flags);
 
    Result = GetSoundDeviceInstanceHandle(SoundDeviceInstance, &Handle);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.hDevice = Handle;
    DeviceInfo.DeviceIndex = DeviceId;
    DeviceInfo.DeviceType = MIXER_DEVICE_TYPE;
    DeviceInfo.Flags = Flags;
 
    MixLine = (LPMIXERLINEW)Parameter;
    MixControls = (LPMIXERLINECONTROLSW)Parameter;
    MixDetails = (LPMIXERCONTROLDETAILS)Parameter;
 
    switch(uMsg)
    {
        case MXDM_GETLINEINFO:
            RtlCopyMemory(&DeviceInfo.u.MixLine, MixLine, sizeof(MIXERLINEW));
            IoControlCode = IOCTL_GETLINEINFO;
            break;
        case MXDM_GETLINECONTROLS:
            RtlCopyMemory(&DeviceInfo.u.MixControls, MixControls, sizeof(MIXERLINECONTROLSW));
            IoControlCode = IOCTL_GETLINECONTROLS;
            break;
       case MXDM_SETCONTROLDETAILS:
            RtlCopyMemory(&DeviceInfo.u.MixDetails, MixDetails, sizeof(MIXERCONTROLDETAILS));
            IoControlCode = IOCTL_SETCONTROLDETAILS;
            break;
       case MXDM_GETCONTROLDETAILS:
            RtlCopyMemory(&DeviceInfo.u.MixDetails, MixDetails, sizeof(MIXERCONTROLDETAILS));
            IoControlCode = IOCTL_GETCONTROLDETAILS;
            break;
       default:
           SND_ASSERT(0);
           return MMSYSERR_NOTSUPPORTED;
    }
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IoControlCode,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    if ( ! MMSUCCESS(Result) )
    {
        return Result;
    }
 
    switch(uMsg)
    {
        case MXDM_GETLINEINFO:
        {
            RtlCopyMemory(MixLine, &DeviceInfo.u.MixLine, sizeof(MIXERLINEW));
            break;
        }
    }
 
    return Result;
}

WdmAudQueryMixerInfoByMMixer()

MMRESULT WdmAudQueryMixerInfoByMMixer	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN DWORD	DeviceId,
		IN UINT	uMsg,
		IN LPVOID	Parameter,
		IN DWORD	Flags
	)

Definition at line 618 of file mmixer.c.

{
    LPMIXERLINEW MixLine;
    LPMIXERLINECONTROLSW MixControls;
    LPMIXERCONTROLDETAILS MixDetails;
    HANDLE hMixer = NULL;
 
    MixLine = (LPMIXERLINEW)Parameter;
    MixControls = (LPMIXERLINECONTROLSW)Parameter;
    MixDetails = (LPMIXERCONTROLDETAILS)Parameter;
 
    /* FIXME param checks */
 
    if (SoundDeviceInstance)
    {
        hMixer = SoundDeviceInstance->Handle;
    }
 
    switch(uMsg)
    {
        case MXDM_GETLINEINFO:
            return WdmAudGetLineInfo(hMixer, MixerId, MixLine, Flags);
        case MXDM_GETLINECONTROLS:
            return WdmAudGetLineControls(hMixer, MixerId, MixControls, Flags);
       case MXDM_SETCONTROLDETAILS:
            return WdmAudSetControlDetails(hMixer, MixerId, MixDetails, Flags);
       case MXDM_GETCONTROLDETAILS:
            return WdmAudGetControlDetails(hMixer, MixerId, MixDetails, Flags);
       default:
           DPRINT1("MixerId %lu, uMsg %lu, Parameter %p, Flags %lu\n", MixerId, uMsg, Parameter, Flags);
           SND_ASSERT(0);
           return MMSYSERR_NOTSUPPORTED;
    }
}

WdmAudResetStreamByLegacy()

MMRESULT WdmAudResetStreamByLegacy	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN MMDEVICE_TYPE	DeviceType,
		IN BOOLEAN	bStartReset
	)

Definition at line 874 of file legacy.c.

{
    MMRESULT Result;
    HANDLE Handle;
    WDMAUD_DEVICE_INFO DeviceInfo;
 
    Result = GetSoundDeviceInstanceHandle(SoundDeviceInstance, &Handle);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.hDevice = Handle;
    DeviceInfo.DeviceType = DeviceType;
    DeviceInfo.u.ResetStream = (bStartReset ? KSRESET_BEGIN : KSRESET_END);
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_RESET_STREAM,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
    return Result;
}

WdmAudResetStreamByMMixer()

MMRESULT WdmAudResetStreamByMMixer	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN MMDEVICE_TYPE	DeviceType,
		IN BOOLEAN	bStartReset
	)

Definition at line 753 of file mmixer.c.

{
    MIXER_STATUS Status;
 
    if (DeviceType == WAVE_IN_DEVICE_TYPE || DeviceType == WAVE_OUT_DEVICE_TYPE)
    {
        Status = MMixerSetWaveResetState(&MixerContext, SoundDeviceInstance->Handle, bStartReset);
        if (Status == MM_STATUS_SUCCESS)
        {
            /* completed successfully */
            return MMSYSERR_NOERROR;
        }
    }
 
 
    return MMSYSERR_NOTSUPPORTED;
}

WdmAudSetControlDetails()

MMRESULT WdmAudSetControlDetails	(	IN HANDLE	hMixer,
		IN DWORD	MixerId,
		IN LPMIXERCONTROLDETAILS	MixDetails,
		IN ULONG	Flags
	)

Definition at line 426 of file mmixer.c.

{
    if (MMixerSetControlDetails(&MixerContext, hMixer, MixerId, Flags, MixDetails) == MM_STATUS_SUCCESS)
        return MMSYSERR_NOERROR;
 
    return MMSYSERR_ERROR;
 
}

Referenced by WdmAudDeviceControl(), WdmAudQueryMixerInfoByMMixer(), and WdmAudSetVolumeByMMixer().

WdmAudSetMixerDeviceFormatByLegacy()

MMRESULT WdmAudSetMixerDeviceFormatByLegacy	(	IN PSOUND_DEVICE_INSTANCE	Instance,
		IN DWORD	DeviceId,
		IN PWAVEFORMATEX	WaveFormat,
		IN DWORD	WaveFormatSize
	)

Definition at line 413 of file legacy.c.

{
    MMRESULT Result;
    WDMAUD_DEVICE_INFO DeviceInfo;
    HANDLE hThread;
 
    Instance->hNotifyEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
    if ( ! Instance->hNotifyEvent )
        return MMSYSERR_NOMEM;
 
    if (Instance->Handle != NULL)
    {
        /* device is already open */
        return MMSYSERR_NOERROR;
    }
 
    Instance->hStopEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
    if ( ! Instance->hStopEvent )
        return MMSYSERR_NOMEM;
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.DeviceType = MIXER_DEVICE_TYPE;
    DeviceInfo.DeviceIndex = DeviceId;
    DeviceInfo.u.hNotifyEvent = Instance->hNotifyEvent;
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_OPEN_WDMAUD,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    if ( ! MMSUCCESS(Result) )
    {
        CloseHandle(Instance->hNotifyEvent);
        CloseHandle(Instance->hStopEvent);
        return TranslateInternalMmResult(Result);
    }
 
    hThread = CreateThread(NULL, 0, MixerEventThreadRoutine, (LPVOID)Instance, 0, NULL);
    if (  hThread )
    {
        CloseHandle(hThread);
    }
 
    /* Store sound device handle instance handle */
    Instance->Handle = (PVOID)DeviceInfo.hDevice;
 
    return MMSYSERR_NOERROR;
}

WdmAudSetMixerDeviceFormatByMMixer()

MMRESULT WdmAudSetMixerDeviceFormatByMMixer	(	IN PSOUND_DEVICE_INSTANCE	Instance,
		IN DWORD	DeviceId,
		IN PWAVEFORMATEX	WaveFormat,
		IN DWORD	WaveFormatSize
	)

Definition at line 690 of file mmixer.c.

{
    if (MMixerOpen(&MixerContext, DeviceId, (PVOID)Instance, MixerEventCallback, &Instance->Handle) == MM_STATUS_SUCCESS)
        return MMSYSERR_NOERROR;
 
    return MMSYSERR_BADDEVICEID;
}

WdmAudSetVolumeByLegacy()

MMRESULT WdmAudSetVolumeByLegacy	(	_In_ PSOUND_DEVICE_INSTANCE	SoundDeviceInstance,
		_In_ DWORD	DeviceId,
		_In_ DWORD	dwVolume
	)

Definition at line 864 of file legacy.c.

{
    /* FIXME */
    return MMSYSERR_NOTSUPPORTED;
}

WdmAudSetVolumeByMMixer()

MMRESULT WdmAudSetVolumeByMMixer	(	_In_ PSOUND_DEVICE_INSTANCE	SoundDeviceInstance,
		_In_ DWORD	DeviceId,
		_In_ DWORD	dwVolume
	)

Definition at line 866 of file mmixer.c.

{
    MMRESULT Result;
    MIXERLINE MixLine;
    MIXERCONTROL MixControl;
    MIXERLINECONTROLS MixLineControls;
    MIXERCONTROLDETAILS MixControlDetails;
    MIXERCONTROLDETAILS_UNSIGNED MixControlDetailsU[2]; // For 2 (stereo) channels
 
    MixLine.cbStruct = sizeof(MixLine);
    MixLine.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
 
    /* Get line info */
    Result = WdmAudGetLineInfo(SoundDeviceInstance->Handle,
                               DeviceId,
                               &MixLine,
                               MIXER_OBJECTF_MIXER | MIXER_GETLINEINFOF_COMPONENTTYPE);
    if (!MMSUCCESS(Result))
        return TranslateInternalMmResult(Result);
 
    MixLineControls.cbStruct = sizeof(MixLineControls);
    MixLineControls.dwLineID = MixLine.dwLineID;
    MixLineControls.dwControlType = MIXERCONTROL_CONTROLTYPE_VOLUME;
    MixLineControls.cControls = 1;
    MixLineControls.cbmxctrl = sizeof(MixControl);
    MixLineControls.pamxctrl = &MixControl;
 
    /* Get line controls */
    Result = WdmAudGetLineControls(SoundDeviceInstance->Handle,
                                   DeviceId,
                                   &MixLineControls,
                                   MIXER_OBJECTF_MIXER | MIXER_GETLINECONTROLSF_ONEBYTYPE);
    if (!MMSUCCESS(Result))
        return TranslateInternalMmResult(Result);
 
    /* Convert volume level to be set */
    MixControlDetailsU[0].dwValue = LOWORD(dwVolume); // Left channel
    MixControlDetailsU[1].dwValue = HIWORD(dwVolume); // Right channel
 
    MixControlDetails.cbStruct = sizeof(MixControlDetails);
    MixControlDetails.dwControlID = MixControl.dwControlID;
    MixControlDetails.cChannels = MixLine.cChannels;
    MixControlDetails.cMultipleItems = 0;
    MixControlDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
    MixControlDetails.paDetails = MixControlDetailsU;
 
    /* Set volume control details */
    Result = WdmAudSetControlDetails(SoundDeviceInstance->Handle,
                                     DeviceId,
                                     &MixControlDetails,
                                     MIXER_OBJECTF_MIXER);
    return Result;
}

WdmAudSetWaveDeviceFormatByLegacy()

MMRESULT WdmAudSetWaveDeviceFormatByLegacy	(	IN PSOUND_DEVICE_INSTANCE	Instance,
		IN DWORD	DeviceId,
		IN PWAVEFORMATEX	WaveFormat,
		IN DWORD	WaveFormatSize
	)

Definition at line 470 of file legacy.c.

{
    MMRESULT Result;
    PSOUND_DEVICE SoundDevice;
    PVOID Identifier;
    WDMAUD_DEVICE_INFO DeviceInfo;
    MMDEVICE_TYPE DeviceType;
 
    Result = GetSoundDeviceFromInstance(Instance, &SoundDevice);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    Result = GetSoundDeviceIdentifier(SoundDevice, &Identifier);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    if (Instance->Handle != NULL)
    {
        /* device is already open */
        return MMSYSERR_NOERROR;
    }
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
 
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.DeviceType = DeviceType;
    DeviceInfo.DeviceIndex = DeviceId;
    DeviceInfo.u.WaveFormatEx.cbSize = WaveFormat->cbSize;
    DeviceInfo.u.WaveFormatEx.wFormatTag = WaveFormat->wFormatTag;
#ifdef USERMODE_MIXER
    DeviceInfo.u.WaveFormatEx.nChannels = 2;
    DeviceInfo.u.WaveFormatEx.nSamplesPerSec = 44100;
    DeviceInfo.u.WaveFormatEx.nBlockAlign = 4;
    DeviceInfo.u.WaveFormatEx.nAvgBytesPerSec = 176400;
    DeviceInfo.u.WaveFormatEx.wBitsPerSample = 16;
#else
    DeviceInfo.u.WaveFormatEx.nChannels = WaveFormat->nChannels;
    DeviceInfo.u.WaveFormatEx.nSamplesPerSec = WaveFormat->nSamplesPerSec;
    DeviceInfo.u.WaveFormatEx.nBlockAlign = WaveFormat->nBlockAlign;
    DeviceInfo.u.WaveFormatEx.nAvgBytesPerSec = WaveFormat->nAvgBytesPerSec;
    DeviceInfo.u.WaveFormatEx.wBitsPerSample = (DeviceInfo.u.WaveFormatEx.nAvgBytesPerSec * 8) / (DeviceInfo.u.WaveFormatEx.nSamplesPerSec * DeviceInfo.u.WaveFormatEx.nChannels);
#endif
 
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_OPEN_WDMAUD,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    if (WaveFormatSize >= sizeof(WAVEFORMAT))
    {
        /* Store format */
        Instance->WaveFormatEx.wFormatTag = WaveFormat->wFormatTag;
        Instance->WaveFormatEx.nChannels = WaveFormat->nChannels;
        Instance->WaveFormatEx.nSamplesPerSec = WaveFormat->nSamplesPerSec;
        Instance->WaveFormatEx.nBlockAlign = WaveFormat->nBlockAlign;
        Instance->WaveFormatEx.nAvgBytesPerSec = WaveFormat->nAvgBytesPerSec;
    }
 
    /* store details */
    Instance->WaveFormatEx.cbSize = WaveFormat->cbSize;
    Instance->WaveFormatEx.wBitsPerSample = (DeviceInfo.u.WaveFormatEx.nAvgBytesPerSec * 8) / (DeviceInfo.u.WaveFormatEx.nSamplesPerSec * DeviceInfo.u.WaveFormatEx.nChannels);
 
    /* Store sound device handle instance handle */
    Instance->Handle = (PVOID)DeviceInfo.hDevice;
 
    /* Now determine framing requirements */
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_GETFRAMESIZE,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    if ( MMSUCCESS(Result) )
    {
        if (DeviceInfo.u.FrameSize)
        {
            Instance->FrameSize = DeviceInfo.u.FrameSize * 2;
            Instance->BufferCount = WaveFormat->nAvgBytesPerSec / Instance->FrameSize;
            SND_TRACE(L"FrameSize %u BufferCount %u\n", Instance->FrameSize, Instance->BufferCount);
        }
    }
    else
    {
        // use a default of 100 buffers
        Instance->BufferCount = 100;
    }
 
    /* Now acquire resources */
    DeviceInfo.u.State = KSSTATE_ACQUIRE;
    SyncOverlappedDeviceIoControl(KernelHandle, IOCTL_SETDEVICE_STATE, (LPVOID) &DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), (LPVOID) &DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), NULL);
 
    /* pause the pin */
    DeviceInfo.u.State = KSSTATE_PAUSE;
    SyncOverlappedDeviceIoControl(KernelHandle, IOCTL_SETDEVICE_STATE, (LPVOID) &DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), (LPVOID) &DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), NULL);
 
    /* start the pin */
    DeviceInfo.u.State = KSSTATE_RUN;
    SyncOverlappedDeviceIoControl(KernelHandle, IOCTL_SETDEVICE_STATE, (LPVOID) &DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), (LPVOID) &DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), NULL);
 
 
    return MMSYSERR_NOERROR;
}

WdmAudSetWaveDeviceFormatByMMixer()

MMRESULT WdmAudSetWaveDeviceFormatByMMixer	(	IN PSOUND_DEVICE_INSTANCE	Instance,
		IN DWORD	DeviceId,
		IN PWAVEFORMATEX	WaveFormat,
		IN DWORD	WaveFormatSize
	)

Definition at line 476 of file mmixer.c.

{
    MMDEVICE_TYPE DeviceType;
    PSOUND_DEVICE SoundDevice;
    MMRESULT Result;
    BOOL bWaveIn;
 
    Result = GetSoundDeviceFromInstance(Instance, &SoundDevice);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    bWaveIn = (DeviceType == WAVE_IN_DEVICE_TYPE ? TRUE : FALSE);
 
    if (MMixerOpenWave(&MixerContext, DeviceId, bWaveIn, WaveFormat, NULL, NULL, &Instance->Handle) == MM_STATUS_SUCCESS)
    {
        if (DeviceType == WAVE_OUT_DEVICE_TYPE)
        {
            MMixerSetWaveStatus(&MixerContext, Instance->Handle, KSSTATE_ACQUIRE);
            MMixerSetWaveStatus(&MixerContext, Instance->Handle, KSSTATE_PAUSE);
            MMixerSetWaveStatus(&MixerContext, Instance->Handle, KSSTATE_RUN);
        }
        return MMSYSERR_NOERROR;
    }
    return MMSYSERR_ERROR;
}

WdmAudSetWaveStateByLegacy()

MMRESULT WdmAudSetWaveStateByLegacy	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN BOOL	bStart
	)

Definition at line 699 of file legacy.c.

{
    MMRESULT Result;
    PSOUND_DEVICE SoundDevice;
    WDMAUD_DEVICE_INFO DeviceInfo;
    MMDEVICE_TYPE DeviceType;
    HANDLE Handle;
 
    Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
 
    if ( ! MMSUCCESS(Result) )
    {
        return TranslateInternalMmResult(Result);
    }
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    Result = GetSoundDeviceInstanceHandle(SoundDeviceInstance, &Handle);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.hDevice = Handle;
    DeviceInfo.DeviceType = DeviceType;
 
    if (bStart)
        DeviceInfo.u.State = KSSTATE_RUN;
    else
        DeviceInfo.u.State = KSSTATE_PAUSE;
    Result = SyncOverlappedDeviceIoControl(KernelHandle,
                                           IOCTL_SETDEVICE_STATE,
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           (LPVOID) &DeviceInfo,
                                           sizeof(WDMAUD_DEVICE_INFO),
                                           NULL);
 
    return Result;
}

WdmAudSetWaveStateByMMixer()

MMRESULT WdmAudSetWaveStateByMMixer	(	IN struct _SOUND_DEVICE_INSTANCE *	SoundDeviceInstance,
		IN BOOL	bStart
	)

Definition at line 703 of file mmixer.c.

{
    MMDEVICE_TYPE DeviceType;
    PSOUND_DEVICE SoundDevice;
    MMRESULT Result;
 
    Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
 
    Result = GetSoundDeviceType(SoundDevice, &DeviceType);
    SND_ASSERT( Result == MMSYSERR_NOERROR );
 
    if (DeviceType == WAVE_IN_DEVICE_TYPE || DeviceType == WAVE_OUT_DEVICE_TYPE)
    {
        if (bStart)
        {
            MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_ACQUIRE);
            MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_PAUSE);
            MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_RUN);
        }
        else
        {
            MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_PAUSE);
            MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_ACQUIRE);
            MMixerSetWaveStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_STOP);
        }
    }
    else if (DeviceType == MIDI_IN_DEVICE_TYPE || DeviceType == MIDI_OUT_DEVICE_TYPE)
    {
        if (bStart)
        {
            MMixerSetMidiStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_ACQUIRE);
            MMixerSetMidiStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_PAUSE);
            MMixerSetMidiStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_RUN);
        }
        else
        {
            MMixerSetMidiStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_PAUSE);
            MMixerSetMidiStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_ACQUIRE);
            MMixerSetMidiStatus(&MixerContext, SoundDeviceInstance->Handle, KSSTATE_STOP);
        }
    }
 
    return MMSYSERR_NOERROR;
}

WriteFileEx_Committer2()

MMRESULT WriteFileEx_Committer2	(	IN PSOUND_DEVICE_INSTANCE	SoundDeviceInstance,
		IN PVOID	OffsetPtr,
		IN DWORD	Length,
		IN PSOUND_OVERLAPPED	Overlap,
		IN LPOVERLAPPED_COMPLETION_ROUTINE	CompletionRoutine
	)

WriteFileEx_Remixer()

MMRESULT WriteFileEx_Remixer	(	IN PSOUND_DEVICE_INSTANCE	SoundDeviceInstance,
		IN PVOID	OffsetPtr,
		IN DWORD	Length,
		IN PSOUND_OVERLAPPED	Overlap,
		IN LPOVERLAPPED_COMPLETION_ROUTINE	CompletionRoutine
	)

Definition at line 423 of file mixer.c.

{
    HANDLE Handle;
    WDMAUD_DEVICE_INFO DeviceInfo;
    DWORD BufferLength, BufferLengthTemp;
    PVOID BufferOut, BufferOutTemp;
    DWORD Status;
    BOOL Result;
 
    VALIDATE_MMSYS_PARAMETER( SoundDeviceInstance );
    VALIDATE_MMSYS_PARAMETER( OffsetPtr );
    VALIDATE_MMSYS_PARAMETER( Overlap );
    VALIDATE_MMSYS_PARAMETER( CompletionRoutine );
 
    GetSoundDeviceInstanceHandle(SoundDeviceInstance, &Handle);
 
    SND_ASSERT(Handle);
 
    BufferOut = OffsetPtr;
    BufferLength = Length;
 
    if (SoundDeviceInstance->WaveFormatEx.wBitsPerSample != 16)
    {
        Status = PerformQualityConversion(OffsetPtr,
                                          Length,
                                          SoundDeviceInstance->WaveFormatEx.wBitsPerSample,
                                          16,
                                          &BufferOut,
                                          &BufferLength);
        if (Status)
        {
            SND_TRACE(L"PerformQualityConversion failed\n");
            return MMSYSERR_NOERROR;
        }
    }
 
    if (SoundDeviceInstance->WaveFormatEx.nChannels != 2)
    {
        Status = PerformChannelConversion(BufferOut,
                                          BufferLength,
                                          SoundDeviceInstance->WaveFormatEx.nChannels,
                                          2,
                                          16,
                                          &BufferOutTemp,
                                          &BufferLengthTemp);
 
        if (BufferOut != OffsetPtr)
        {
            HeapFree(GetProcessHeap(), 0, BufferOut);
        }
 
        if (Status)
        {
            SND_TRACE(L"PerformChannelConversion failed\n");
            return MMSYSERR_NOERROR;
        }
 
        BufferOut = BufferOutTemp;
        BufferLength = BufferLengthTemp;
    }
 
    if (SoundDeviceInstance->WaveFormatEx.nSamplesPerSec != 44100)
    {
        Status = PerformSampleRateConversion(BufferOut,
                                             BufferLength,
                                             SoundDeviceInstance->WaveFormatEx.nSamplesPerSec,
                                             44100,
                                             2,
                                             2,
                                             &BufferOutTemp,
                                             &BufferLengthTemp);
 
        if (BufferOut != OffsetPtr)
        {
            HeapFree(GetProcessHeap(), 0, BufferOut);
        }
 
        if (Status)
        {
            SND_TRACE(L"PerformSampleRateConversion failed\n");
            return MMSYSERR_NOERROR;
        }
 
        BufferOut = BufferOutTemp;
        BufferLength = BufferLengthTemp;
    }
 
    ZeroMemory(&DeviceInfo, sizeof(WDMAUD_DEVICE_INFO));
    DeviceInfo.hDevice = Handle;
    DeviceInfo.DeviceType = WAVE_OUT_DEVICE_TYPE; //FIXME
    DeviceInfo.Header.FrameExtent = BufferLength;
    DeviceInfo.Header.DataUsed = BufferLength;
    DeviceInfo.Header.Data = BufferOut;
    DeviceInfo.Header.Size = sizeof(KSSTREAM_HEADER);
    DeviceInfo.Header.PresentationTime.Numerator = 1;
    DeviceInfo.Header.PresentationTime.Denominator = 1;
 
    Overlap->CompletionContext = UlongToPtr(Length);
    Overlap->OriginalCompletionRoutine = CompletionRoutine;
 
    Overlap->Standard.hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 
    //SND_TRACE(L"OriginalLength %u NewLength %u\n", Length, BufferLength);
 
#if 0
    Result = WriteFileEx(KernelHandle, &DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), (LPOVERLAPPED)Overlap, CompletionRoutine);
#else
    Result = WriteFileEx(KernelHandle, &DeviceInfo, sizeof(WDMAUD_DEVICE_INFO), (LPOVERLAPPED)Overlap, MixerCompletionRoutine);
#endif
 
    if ( ! Result )
    {
        SND_TRACE(L"WriteFileEx failed with %x\n", GetLastError());
        return MMSYSERR_NOERROR;
    }
 
    WaitForSingleObjectEx (KernelHandle, INFINITE, TRUE);
 
#ifdef USERMODE_MIXER
       // if (BufferOut != OffsetPtr)
       //     HeapFree(GetProcessHeap(), 0, BufferOut);
#endif
 
 
    return MMSYSERR_NOERROR;
}

Referenced by PopulateWdmDeviceList().