MMRESULT
MmeGetLineInfo(
IN UINT DeviceId,
IN UINT Message,
IN DWORD_PTR PrivateHandle,
IN DWORD_PTR Parameter1,
IN DWORD_PTR Parameter2)
{
MMRESULT Result;
PSOUND_DEVICE_INSTANCE SoundDeviceInstance;
PSOUND_DEVICE SoundDevice;
PMMFUNCTION_TABLE FunctionTable;
//SND_TRACE(L"Getting mixer info %u\n", Message);
if ( PrivateHandle == 0 )
{
Result = GetSoundDevice(MIXER_DEVICE_TYPE, DeviceId, &SoundDevice);
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
Result = FunctionTable->QueryMixerInfo(NULL, DeviceId, Message, (LPVOID)Parameter1, Parameter2);
return Result;
}
VALIDATE_MMSYS_PARAMETER( PrivateHandle );
SoundDeviceInstance = (PSOUND_DEVICE_INSTANCE) PrivateHandle;
Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
if ( ! FunctionTable->QueryMixerInfo )
return MMSYSERR_NOTSUPPORTED;
Result = FunctionTable->QueryMixerInfo(SoundDeviceInstance, DeviceId, Message, (LPVOID)Parameter1, Parameter2);
return Result;
}
MMRESULT
QueryWaveDeviceFormatSupport(
IN PSOUND_DEVICE SoundDevice,
IN LPWAVEFORMATEX Format,
IN DWORD FormatSize)
{
MMRESULT Result;
MMDEVICE_TYPE DeviceType;
PMMFUNCTION_TABLE FunctionTable;
SND_TRACE(L"Querying wave format support\n");
VALIDATE_MMSYS_PARAMETER( IsValidSoundDevice(SoundDevice) );
VALIDATE_MMSYS_PARAMETER( Format );
VALIDATE_MMSYS_PARAMETER( FormatSize >= sizeof(WAVEFORMATEX) );
Result = GetSoundDeviceType(SoundDevice, &DeviceType);
SND_ASSERT( Result == MMSYSERR_NOERROR );
/* Ensure we have a wave device (TODO: check if this applies to wavein as well) */
VALIDATE_MMSYS_PARAMETER( IS_WAVE_DEVICE_TYPE(DeviceType) );
/* Obtain the function table */
Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
SND_ASSERT( Result == MMSYSERR_NOERROR );
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
if ( ! FunctionTable->QueryWaveFormatSupport )
return MMSYSERR_NOTSUPPORTED;
return FunctionTable->QueryWaveFormatSupport(SoundDevice, Format, FormatSize);
}
MMRESULT
SetWaveDeviceFormat(
IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance,
IN DWORD DeviceId,
IN LPWAVEFORMATEX Format,
IN DWORD FormatSize)
{
MMRESULT Result;
MMDEVICE_TYPE DeviceType;
PMMFUNCTION_TABLE FunctionTable;
PSOUND_DEVICE SoundDevice;
SND_TRACE(L"Setting wave format\n");
VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
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)
{
VALIDATE_MMSYS_PARAMETER( Format );
VALIDATE_MMSYS_PARAMETER( FormatSize >= sizeof(WAVEFORMATEX) );
}
/* Ensure we have a wave device (TODO: check if this applies to wavein as well) */
VALIDATE_MMSYS_PARAMETER( IS_WAVE_DEVICE_TYPE(DeviceType) || IS_MIDI_DEVICE_TYPE(DeviceType) || IS_MIXER_DEVICE_TYPE(DeviceType));
/* Obtain the function table */
Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
SND_ASSERT( Result == MMSYSERR_NOERROR );
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
if ( ! FunctionTable->SetWaveFormat )
return MMSYSERR_NOTSUPPORTED;
return FunctionTable->SetWaveFormat(SoundDeviceInstance, DeviceId, Format, FormatSize);
}
MMRESULT
DestroySoundDeviceInstance(
IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance)
{
MMRESULT Result;
PMMFUNCTION_TABLE FunctionTable;
PSOUND_DEVICE SoundDevice;
PVOID Handle;
SND_TRACE(L"Destroying a sound device instance\n");
VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
Result = GetSoundDeviceInstanceHandle(SoundDeviceInstance, &Handle);
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
/* Get the "close" routine from the function table, and validate it */
Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
SND_ASSERT( FunctionTable->Close );
if ( FunctionTable->Close == NULL )
{
/* This indicates bad practice, really! If you can open, why not close?! */
return MMSYSERR_NOTSUPPORTED;
}
/* Stop the streaming thread */
if ( SoundDeviceInstance->Thread )
{
Result = DestroySoundThread(SoundDeviceInstance->Thread);
SND_ASSERT( MMSUCCESS(Result) ); /* It should succeed! */
if ( ! MMSUCCESS(Result ) )
{
return TranslateInternalMmResult(Result);
}
}
/* Blank this out here */
SoundDeviceInstance->Thread = NULL;
/* Try and close the device */
Result = FunctionTable->Close(SoundDeviceInstance, Handle);
SND_ASSERT( MMSUCCESS(Result) ); /* It should succeed! */
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
/* Drop it from the list */
Result = UnlistSoundDeviceInstance(SoundDeviceInstance);
SND_ASSERT( MMSUCCESS(Result) ); /* It should succeed! */
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
FreeSoundDeviceInstance(SoundDeviceInstance);
return MMSYSERR_NOERROR;
}
MMRESULT
CreateSoundDeviceInstance(
IN PSOUND_DEVICE SoundDevice,
OUT PSOUND_DEVICE_INSTANCE* SoundDeviceInstance)
{
MMRESULT Result;
PMMFUNCTION_TABLE FunctionTable;
SND_TRACE(L"Creating a sound device instance\n");
VALIDATE_MMSYS_PARAMETER( IsValidSoundDevice(SoundDevice) );
VALIDATE_MMSYS_PARAMETER( SoundDeviceInstance != NULL );
Result = AllocateSoundDeviceInstance(SoundDeviceInstance);
if ( ! MMSUCCESS(Result) )
return TranslateInternalMmResult(Result);
/* Get the "open" routine from the function table, and validate it */
Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
if ( ! MMSUCCESS(Result) )
{
FreeSoundDeviceInstance(*SoundDeviceInstance);
return TranslateInternalMmResult(Result);
}
if ( FunctionTable->Open == NULL )
{
FreeSoundDeviceInstance(*SoundDeviceInstance);
return MMSYSERR_NOTSUPPORTED;
}
/* Set up the members of the structure */
(*SoundDeviceInstance)->Next = NULL;
(*SoundDeviceInstance)->Device = SoundDevice;
(*SoundDeviceInstance)->Handle = NULL;
(*SoundDeviceInstance)->Thread = NULL;
(*SoundDeviceInstance)->WinMM.Handle = INVALID_HANDLE_VALUE;
(*SoundDeviceInstance)->WinMM.ClientCallback = 0;
(*SoundDeviceInstance)->WinMM.ClientCallbackInstanceData = 0;
(*SoundDeviceInstance)->WinMM.Flags = 0;
/* Initialise the members of the struct used by the sound thread */
(*SoundDeviceInstance)->HeadWaveHeader = NULL;
(*SoundDeviceInstance)->TailWaveHeader = NULL;
(*SoundDeviceInstance)->OutstandingBuffers = 0;
(*SoundDeviceInstance)->LoopsRemaining = 0;
/* Create the streaming thread (TODO - is this for wave only?) */
Result = CreateSoundThread(&(*SoundDeviceInstance)->Thread);
if ( ! MMSUCCESS(Result) )
{
FreeSoundDeviceInstance(*SoundDeviceInstance);
return TranslateInternalMmResult(Result);
}
/* Add the instance to the list */
Result = ListSoundDeviceInstance(SoundDevice, *SoundDeviceInstance);
if ( ! MMSUCCESS(Result) )
{
FreeSoundDeviceInstance(*SoundDeviceInstance);
return TranslateInternalMmResult(Result);
}
/* Try and open the device */
Result = FunctionTable->Open(SoundDevice, (&(*SoundDeviceInstance)->Handle));
if ( ! MMSUCCESS(Result) )
{
UnlistSoundDeviceInstance(*SoundDeviceInstance);
FreeSoundDeviceInstance(*SoundDeviceInstance);
return TranslateInternalMmResult(Result);
}
return MMSYSERR_NOERROR;
}
