/// <summary>
/// Creates and configures a source voice. For more information see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/microsoft.directx_sdk.ixaudio2.ixaudio2.createsourcevoice(v=vs.85).aspx.
/// </summary>
/// <param name="sourceFormat">
/// Pointer to a <see cref="WaveFormat" />. The following formats are supported:
/// <ul>
/// <li>8-bit (unsigned) integer PCM</li><li>16-bit integer PCM (optimal format for XAudio2)</li>
/// <li>20-bit integer PCM (either in 24 or 32 bit containers)</li>
/// <li>24-bit integer PCM (either in 24 or 32 bit containers)</li><li>32-bit integer PCM</li>
/// <li>32-bit float PCM (preferred format after 16-bit integer)</li>
/// </ul>
/// The number of channels in a source voice must be less than or equal to <see cref="MaxAudioChannels" />. The
/// sample rate of a source voice must be between <see cref="MinimumSampleRate" /> and <see cref="MaximumSampleRate" />
/// .
/// </param>
/// <param name="flags">
/// <see cref="VoiceFlags" /> that specify the behavior of the source voice. A flag can be
/// <see cref="VoiceFlags.None" /> or a combination of one or more of the following.
/// Possible values are <see cref="VoiceFlags.NoPitch" />, <see cref="VoiceFlags.NoSampleRateConversition" /> and
/// <see cref="VoiceFlags.UseFilter" />. <see cref="VoiceFlags.Music" /> is not supported on Windows.
/// </param>
/// <param name="maxFrequencyRatio">
/// Highest allowable frequency ratio that can be set on this voice. The value for this
/// argument must be between <see cref="MinFrequencyRatio" /> and <see cref="MaxFrequencyRatio" />.
/// </param>
/// <param name="voiceCallback">
/// Client-provided callback interface, <see cref="IXAudio2VoiceCallback" />. This parameter is
/// optional and can be null.
/// </param>
/// <param name="sendList">
/// List of <see cref="VoiceSends" /> structures that describe the set of destination voices for the
/// source voice. If <paramref name="sendList" /> is NULL, the send list defaults to a single output to the first
/// mastering
/// voice created.
/// </param>
/// <param name="effectChain">
/// List of <see cref="EffectChain" /> structures that describe an effect chain to use in the
/// source voice. This parameter is optional and can be null.
/// </param>
/// <returns>If successful, returns a pointer to the new <see cref="XAudio2SourceVoice" /> object.</returns>
public IntPtr CreateSourceVoicePtr(WaveFormat sourceFormat, VoiceFlags flags, float maxFrequencyRatio,
IXAudio2VoiceCallback voiceCallback, VoiceSends?sendList, EffectChain?effectChain)
{
GCHandle hWaveFormat = GCHandle.Alloc(sourceFormat, GCHandleType.Pinned);
//todo: do we really need to use GCHandle?
try
{
IntPtr ptr;
int result = CreateSourceVoiceNative(
out ptr,
hWaveFormat.AddrOfPinnedObject(),
flags,
maxFrequencyRatio,
voiceCallback,
sendList,
effectChain);
XAudio2Exception.Try(result, N, "CreateSourceVoice");
return(ptr);
}
finally
{
if (hWaveFormat.IsAllocated)
{
hWaveFormat.Free();
}
}
}
/// <summary>
/// Returns the number of available audio output devices.
/// </summary>
/// <returns>Number of available audio output devices.</returns>
public int GetDeviceCount()
{
int c;
XAudio2Exception.Try(GetDeviceCountNative(out c), N, "GetDeviceCount");
return(c);
}
/// <summary>
/// Returns information about an audio output device.
/// </summary>
/// <param name="deviceIndex">
/// Index of the device to be queried. This value must be less than the count returned by
/// <see cref="GetDeviceCount" />.
/// </param>
/// <returns><see cref="DeviceDetails" /> structure.</returns>
public DeviceDetails GetDeviceDetails(int deviceIndex)
{
DeviceDetails deviceDetails;
XAudio2Exception.Try(GetDeviceDetailsNative(deviceIndex, out deviceDetails), N, "GetDeviceDetails");
return(deviceDetails);
}
/// <summary>
/// Gets the voice's filter parameters.
/// </summary>
/// <returns><see cref="AudioSharp.XAudio2.FilterParameters" /> structure containing the filter information.</returns>
public FilterParameters GetFilterParameters()
{
FilterParameters r;
XAudio2Exception.Try(GetFilterParametersNative(out r), InterfaceName, "GetFilterParameters");
return(r);
}
/// <summary>
/// Gets the current overall volume level of the voice.
/// </summary>
/// <returns>The current overall volume level of the voice. See Remarks for more information on volume levels.</returns>
/// <remarks>
/// The master volume level is applied at different times depending on the type of voice.
/// For submix and mastering voices the volume level is applied just before the voice's built in filter and effect
/// chain is applied.
/// For source voices the master volume level is applied after the voice's filter and effect
/// chain is applied. Volume levels are expressed as floating-point amplitude multipliers
/// between -2^24 and 2^24, with a maximum
/// gain of 144.5 dB. A volume level of 1.0 means there is no attenuation or gain and 0 means silence.
/// Negative levels can be used to invert the audio's phase.
/// </remarks>
public float GetVolume()
{
float v;
XAudio2Exception.Try(GetVolumeNative(out v), InterfaceName, "GetVolume");
return(v);
}
/// <summary>
/// Gets the volume level of each channel of the final output for the voice. These channels are mapped to the input
/// channels of a specified destination voice.
/// </summary>
/// <param name="destinationVoice">The destination <see cref="XAudio2Voice" /> to retrieve the output matrix for.</param>
/// <param name="sourceChannels">
/// Confirms the output channel count of the voice. This is the number of channels that are
/// produced by the last effect in the chain.
/// </param>
/// <param name="destinationChannels">Confirms the input channel count of the destination voice.</param>
/// <param name="levelMatrix">
/// Array of [SourceChannels ?DestinationChannels] volume levels sent to the destination voice.
/// The level sent from source channel S to destination channel D is specified in the form levelMatrix[SourceChannels ? /// D + S].
/// For more details see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/microsoft.directx_sdk.ixaudio2voice.ixaudio2voice.getoutputmatrix(v=vs.85).aspx.
/// </param>
public void GetOutputMatrix(XAudio2Voice destinationVoice, int sourceChannels,
int destinationChannels, float[] levelMatrix)
{
int result = GetOutputMatrixNative(destinationVoice, sourceChannels, destinationChannels, levelMatrix);
XAudio2Exception.Try(result, InterfaceName, "GetOutputMatrix");
}
/// <summary>
/// Returns the filter parameters from one of this voice's sends.
/// </summary>
/// <param name="destinationVoice">The destination voice of the send whose filter parameters will be read.</param>
/// <returns><see cref="AudioSharp.XAudio2.FilterParameters" /> structure containing the filter information.</returns>
public FilterParameters GetOutputFilterParameters(XAudio2Voice destinationVoice)
{
FilterParameters value;
XAudio2Exception.Try(GetOutputFilterParametersNative(destinationVoice, out value), InterfaceName,
"GetOutputFilterParameters");
return(value);
}
private static unsafe IntPtr CreateXAudio2Instance(XAudio2Processor processor)
{
IntPtr ptr = IntPtr.Zero;
var pptr = new IntPtr(&ptr);
int result = NativeMethods.XAudio2Create(pptr, 0, processor);
XAudio2Exception.Try(result, "Interop", "XAudio2Create");
return(ptr);
}
/// <summary>
/// Sets parameters for a given effect in the voice's effect chain.
/// </summary>
/// <typeparam name="T">Effect parameter.</typeparam>
/// <param name="effectIndex">Zero-based index of an effect within the voice's effect chain.</param>
/// <param name="effectParameters">New values of the effect-specific parameters.</param>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more information see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
public unsafe void SetEffectParameters <T>(int effectIndex, T effectParameters, int operationSet)
where T : struct
{
int parameterSize = Utils.ILUtils.SizeOf <T>();
void *ptr = stackalloc byte[parameterSize];
Utils.ILUtils.WriteToMemory(new IntPtr(ptr), ref effectParameters);
XAudio2Exception.Try(SetEffectParametersNative(effectIndex, new IntPtr(ptr), parameterSize, operationSet),
InterfaceName, "SetEffectParameters");
}
/// <summary>
/// Returns the current effect-specific parameters of a given effect in the voice's effect chain.
/// </summary>
/// <typeparam name="T">Effect parameters.</typeparam>
/// <param name="effectIndex">Zero-based index of an effect within the voice's effect chain.</param>
/// <returns>Effect parameters value.</returns>
public unsafe T GetEffectParameters <T>(int effectIndex) where T : struct
{
int parameterSize = Utils.ILUtils.SizeOf <T>();
void *ptr = stackalloc byte[parameterSize];
XAudio2Exception.Try(GetEffectParametersNative(effectIndex, (IntPtr)ptr, parameterSize),
InterfaceName, "GetEffectParameters");
return(Utils.ILUtils.Read <T>((IntPtr)ptr));
}
/// <summary>
/// Creates and configures a mastering voice.
/// </summary>
/// <param name="inputChannels">
/// Number of channels the mastering voice expects in its input audio. <paramref name="inputChannels" /> must be less
/// than
/// or equal to <see cref="MaxAudioChannels" />.
/// You can set InputChannels to <see cref="DefaultChannels" />, which causes XAudio2 to try to detect the system
/// speaker configuration setup.
/// </param>
/// <param name="inputSampleRate">
/// Sample rate of the input audio data of the mastering voice. This rate must be a multiple of
/// <see cref="QuantumDenominator" />. <paramref name="inputSampleRate" /> must be between
/// <see cref="MinimumSampleRate" />
/// and <see cref="MaximumSampleRate" />.
/// You can set InputSampleRate to <see cref="DefaultSampleRate" />, with the default being determined by the current
/// platform.
/// </param>
/// <param name="flags">Flags that specify the behavior of the mastering voice. Must be 0.</param>
/// <param name="device">
/// Identifier of the device to receive the output audio.
/// Specifying the default value of NULL (for XAudio2.8) or 0 (for XAudio2.7) causes
/// XAudio2 to select the global default audio device.
///
/// On XAudio2.7: Use the <see cref="XAudio2_7.GetDeviceCount"/> and the <see cref="XAudio2_7.GetDeviceDetails"/> method to enumerate device. Pass its index (valid range from 0 to <see cref="XAudio2_7.GetDeviceCount"/>) to the <paramref name="device"/> argument.
/// On XAudio2.8: Use the <see cref="MMDeviceEnumerator"/> class to enumerate <see cref="MMDevice"/> objects. Pass its <see cref="MMDevice.DevicePath"/> to the <paramref name="device"/> argument.
/// </param>
/// <param name="effectChain">
/// <see cref="EffectChain" /> structure that describes an effect chain to use in the mastering
/// voice, or NULL to use no effects.
/// </param>
/// <param name="streamCategory">The audio stream category to use for this mastering voice.</param>
/// <returns>If successful, returns a pointer to the new <see cref="XAudio2MasteringVoice" /> object.</returns>
public IntPtr CreateMasteringVoicePtr(int inputChannels, int inputSampleRate, int flags,
object device, EffectChain?effectChain, AudioStreamCategory streamCategory)
{
IntPtr ptr;
int result = CreateMasteringVoiceNative(out ptr, inputChannels, inputSampleRate, flags, device,
effectChain, streamCategory);
XAudio2Exception.Try(result, N, "CreateMasteringVoice");
return(ptr);
}
/// <summary>
/// Creates and configures a submix voice.
/// </summary>
/// <param name="inputChannels">
/// Number of channels in the input audio data of the submix voice. The
/// <paramref name="inputChannels" /> must be less than or equal to <see cref="MaxAudioChannels" />.
/// </param>
/// <param name="inputSampleRate">
/// Sample rate of the input audio data of submix voice. This rate must be a multiple of
/// <see cref="QuantumDenominator" />. InputSampleRate must be between <see cref="MinimumSampleRate" /> and
/// <see cref="MaximumSampleRate" />.
/// </param>
/// <param name="flags">
/// Flags that specify the behavior of the submix voice. It can be <see cref="VoiceFlags.None" /> or
/// <see cref="VoiceFlags.UseFilter" />.
/// </param>
/// <param name="processingStage">
/// An arbitrary number that specifies when this voice is processed with respect to other
/// submix voices, if the XAudio2 engine is running other submix voices. The voice is processed after all other voices
/// that include a smaller <paramref name="processingStage" /> value and before all other voices that include a larger
/// <paramref name="processingStage" /> value. Voices that include the same <paramref name="processingStage" /> value
/// are
/// processed in any order. A submix voice cannot send to another submix voice with a lower or equal
/// <paramref name="processingStage" /> value. This prevents audio being lost due to a submix cycle.
/// </param>
/// <param name="sendList">
/// List of <see cref="VoiceSends" /> structures that describe the set of destination voices for the
/// submix voice. If <paramref name="sendList" /> is NULL, the send list will default to a single output to the first
/// mastering voice created.
/// </param>
/// <param name="effectChain">
/// List of <see cref="EffectChain" /> structures that describe an effect chain to use in the
/// submix voice. This parameter is optional and can be null.
/// </param>
/// <returns>On success, returns a pointer to the new <see cref="XAudio2SubmixVoice" /> object.</returns>
public IntPtr CreateSubmixVoicePtr(int inputChannels, int inputSampleRate, VoiceFlags flags,
int processingStage, VoiceSends?sendList, EffectChain?effectChain)
{
IntPtr ptr;
int result = CreateSubmixVoiceNative(out ptr, inputChannels, inputSampleRate, flags, processingStage,
sendList,
effectChain);
XAudio2Exception.Try(result, N, "CreateSubmixVoiceNative");
return(ptr);
}
/// <summary>
/// Returns the volume levels for the voice, per channel.
/// These settings are applied after the effect chain is applied.
/// This method is valid only for source and submix voices, because mastering voices do not specify volume per channel.
/// </summary>
/// <param name="channelCount">Confirms the channel count of the voice.</param>
/// <returns>
/// Returns the current volume level of each channel in the voice. The has at least <paramref name="channelCount" />
/// elements.
/// </returns>
/// <remarks>
/// The master volume level is applied at different times depending on the type of voice.
/// For submix and mastering voices the volume level is applied just before the voice's built in filter and effect
/// chain is applied.
/// For source voices the master volume level is applied after the voice's filter and effect
/// chain is applied. Volume levels are expressed as floating-point amplitude multipliers
/// between -2^24 and 2^24, with a maximum
/// gain of 144.5 dB. A volume level of 1.0 means there is no attenuation or gain and 0 means silence.
/// Negative levels can be used to invert the audio's phase.
/// </remarks>
public float[] GetChannelVolumes(int channelCount)
{
if (channelCount <= 0)
{
throw new ArgumentOutOfRangeException("channelCount");
}
var volumes = new float[channelCount];
XAudio2Exception.Try(GetChannelVolumesNative(channelCount, volumes), InterfaceName, "GetChannelVolumes");
return(volumes);
}
/// <summary>
/// Sets the volume levels for the voice, per channel. This method is valid only for source and submix voices, because
/// mastering voices do not specify volume per channel.
/// </summary>
/// <param name="channelCount">Number of channels in the voice.</param>
/// <param name="volumes">
/// Array containing the new volumes of each channel in the voice. The array must have
/// <paramref name="channelCount" /> elements. See Remarks for more information on volume levels.
/// </param>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more information see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
/// <remarks>
/// The master volume level is applied at different times depending on the type of voice.
/// For submix and mastering voices the volume level is applied just before the voice's built in filter and effect
/// chain is applied.
/// For source voices the master volume level is applied after the voice's filter and effect
/// chain is applied. Volume levels are expressed as floating-point amplitude multipliers
/// between -2^24 and 2^24, with a maximum
/// gain of 144.5 dB. A volume level of 1.0 means there is no attenuation or gain and 0 means silence.
/// Negative levels can be used to invert the audio's phase.
/// </remarks>
public void SetChannelVolumes(int channelCount, float[] volumes, int operationSet)
{
if (volumes == null)
{
throw new ArgumentNullException("volumes");
}
if (volumes.Length != channelCount)
{
throw new ArgumentException(
"The length of the volumes argument has to be equal to the channelCount argument.");
}
XAudio2Exception.Try(SetChannelVolumesNative(volumes.Length, volumes, operationSet), InterfaceName, "SetChannelVolumes");
}
/// <summary>
/// Designates a new set of submix or mastering voices to receive the output of the voice.
/// </summary>
/// <param name="voiceSendDescriptors">
/// Array of <see cref="VoiceSendDescriptor" />s. if <paramref name="voiceSendDescriptors" /> is null, the voice will send
/// its output to the current mastering voice.
/// All voices in the <paramref name="voiceSendDescriptors" /> must have the same input sample rate.
/// </param>
public unsafe void SetOutputVoices(VoiceSendDescriptor[] voiceSendDescriptors)
{
if (voiceSendDescriptors == null)
{
XAudio2Exception.Try(SetOutputVoicesNative(null), InterfaceName, "SetOutputVoices");
}
else
{
fixed(void *ptr = &voiceSendDescriptors[0])
{
var p = new VoiceSends
{
SendCount = voiceSendDescriptors.Length,
SendsPtr = new IntPtr(ptr)
};
XAudio2Exception.Try(SetOutputVoicesNative(p), InterfaceName, "SetOutputVoices");
}
}
}
/// <summary>
/// Starts the audio processing thread.
/// </summary>
public void StartEngine()
{
XAudio2Exception.Try(StartEngineNative(), N, "StartEngine");
}
/// <summary>
/// Notifies an XAudio2 voice that no more buffers are coming after the last one that is currently in its queue.
/// </summary>
public void Discontinuity()
{
XAudio2Exception.Try(DiscontinuityNative(), N, "Discontinuity");
}
/// <summary>
/// Sets the overall volume level for the voice.
/// </summary>
/// <param name="volume">Overall volume level to use. See Remarks for more information on volume levels.</param>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more information see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
/// <remarks>
/// The master volume level is applied at different times depending on the type of voice.
/// For submix and mastering voices the volume level is applied just before the voice's built in filter and effect
/// chain is applied.
/// For source voices the master volume level is applied after the voice's filter and effect
/// chain is applied. Volume levels are expressed as floating-point amplitude multipliers
/// between -2^24 and 2^24, with a maximum
/// gain of 144.5 dB. A volume level of 1.0 means there is no attenuation or gain and 0 means silence.
/// Negative levels can be used to invert the audio's phase.
/// </remarks>
public void SetVolume(float volume, int operationSet)
{
XAudio2Exception.Try(SetVolumeNative(volume, operationSet), InterfaceName, "SetVolume");
}
/// <summary>
/// Stops looping the voice when it reaches the end of the current loop region.
/// </summary>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more details see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
public void ExitLoop(int operationSet)
{
XAudio2Exception.Try(ExitLoopNative(operationSet), N, "ExitLoop");
}
/// <summary>
/// Sets the filter parameters on one of this voice's sends.
/// </summary>
/// <param name="destinationVoice">The destination voice of the send whose filter parameters will be set.</param>
/// <param name="filterParameters">
/// <see cref="AudioSharp.XAudio2.FilterParameters" /> structure containing the filter
/// information.
/// </param>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more information see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
public void SetOutputFilterParameters(XAudio2Voice destinationVoice, FilterParameters filterParameters,
int operationSet)
{
XAudio2Exception.Try(SetOutputFilterParametersNative(destinationVoice, filterParameters, operationSet), InterfaceName,
"SetOutputFilterParameters");
}
/// <summary>
/// Sets the frequency adjustment ratio of the voice.
/// </summary>
/// <param name="ratio">
/// Frequency adjustment ratio. This value must be between <see cref="XAudio2.MinFrequencyRatio" /> and
/// the MaxFrequencyRatio parameter specified when the voice was created
/// <see
/// cref="XAudio2.CreateSourceVoice(AudioSharp.WaveFormat,AudioSharp.XAudio2.VoiceFlags,float,AudioSharp.XAudio2.IXAudio2VoiceCallback,System.Nullable{AudioSharp.XAudio2.VoiceSends},System.Nullable{AudioSharp.XAudio2.EffectChain})" />
/// .
/// </param>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more details see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
public void SetFrequencyRatio(float ratio, int operationSet)
{
XAudio2Exception.Try(SetFrequencyRatioNative(ratio, operationSet), N, "SetFrequencyRatio");
}
/// <summary>
/// Sets the voice's filter parameters.
/// </summary>
/// <param name="filterParameters">
/// <see cref="AudioSharp.XAudio2.FilterParameters" /> structure containing the filter
/// information.
/// </param>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more information see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
public void SetFilterParameters(FilterParameters filterParameters, int operationSet)
{
XAudio2Exception.Try(SetFilterParametersNative(filterParameters, operationSet), InterfaceName, "SetFilterParameters");
}
/// <summary>
/// Reconfigures the voice to consume source data at a different sample rate than the rate specified when the voice was
/// created.
/// </summary>
/// <param name="newSourceSampleRate">
/// The new sample rate the voice should process submitted data at. Valid sample rates
/// are 1kHz to 200kHz.
/// </param>
public void SetSourceSampleRate(int newSourceSampleRate)
{
XAudio2Exception.Try(SetSourceSampleRateNative(newSourceSampleRate), N, "SetSourceSampleRate");
}
/// <summary>
/// Starts consumption and processing of audio by the voice. Delivers the result to any connected submix or mastering
/// voices, or to the output device.
/// </summary>
/// <param name="flags">Flags that control how the voice is started. Must be 0.</param>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more details see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
public void Start(int flags, int operationSet)
{
XAudio2Exception.Try(StartNative(flags, operationSet), N, "Start");
}
/// <summary>
/// Disables the effect at a given position in the effect chain of the voice.
/// </summary>
/// <param name="effectIndex">Zero-based index of an effect in the effect chain of the voice.</param>
/// <param name="operationSet">
/// Identifies this call as part of a deferred batch. For more information see
/// http://msdn.microsoft.com/en-us/library/windows/desktop/ee415807(v=vs.85).aspx.
/// </param>
public void DisableEffect(int effectIndex, int operationSet)
{
XAudio2Exception.Try(DisableEffectNative(effectIndex, operationSet), InterfaceName, "DisableEffect");
}
/// <summary>
/// Sets XAudio2 parameters and prepares XAudio2 for use.
/// </summary>
/// <param name="flags">Flags that specify the behavior of the XAudio2 object. This value must be 0.</param>
/// <param name="processor">
/// Specifies which CPU to use. Use <see cref="XAudio2Processor.XAudio27DefaultProcessor" /> as default value.
/// </param>
public void Initialize(int flags, XAudio2Processor processor)
{
XAudio2Exception.Try(InitializeNative(flags, processor), N, "Initialize");
}
/// <summary>
/// Removes all pending audio buffers from the voice queue. If the voice is started, the buffer that is currently
/// playing is not removed from the queue.
/// </summary>
/// <remarks>
/// See
/// http://msdn.microsoft.com/en-us/library/windows/desktop/microsoft.directx_sdk.ixaudio2sourcevoice.ixaudio2sourcevoice.flushsourcebuffers(v=vs.85).aspx.
/// </remarks>
public void FlushSourceBuffers()
{
XAudio2Exception.Try(FlushSourceBuffersNative(), N, "FlushSourceBuffers");
}
/// <summary>
/// Adds an <see cref="IXAudio2EngineCallback" /> from the <see cref="XAudio2" /> engine callback list.
/// </summary>
/// <param name="callback">
/// <see cref="IXAudio2EngineCallback" /> object to add to the <see cref="XAudio2" /> engine
/// callback list.
/// </param>
public void RegisterForCallbacks(IXAudio2EngineCallback callback)
{
XAudio2Exception.Try(RegisterForCallbacksNative(callback), N, "RegisterForCallbacks");
}
/// <summary>
/// Atomically applies a set of operations that are tagged with a given identifier.
/// </summary>
/// <param name="operationSet">
/// Identifier of the set of operations to be applied. To commit all pending operations, pass
/// <see cref="CommitAll" />.
/// </param>
public void CommitChanges(int operationSet)
{
XAudio2Exception.Try(CommitChangesNative(operationSet), N, "CommitChanges");
}
/// <summary>
/// Adds a new audio buffer to the voice queue.
/// </summary>
/// <param name="buffer"><see cref="XAudio2Buffer" /> structure to queue.</param>
/// <remarks>
/// See
/// http://msdn.microsoft.com/en-us/library/windows/desktop/microsoft.directx_sdk.ixaudio2sourcevoice.ixaudio2sourcevoice.submitsourcebuffer(v=vs.85).aspx.
/// </remarks>
public unsafe void SubmitSourceBuffer(XAudio2Buffer buffer)
{
XAudio2Exception.Try(SubmitSourceBufferNative(new IntPtr(&buffer), IntPtr.Zero), N, "SubmitSourceBuffer");
}
