public WaveBank(
AudioEngine audioEngine,
string nonStreamingWaveBankFilename
)
{
if (audioEngine == null)
{
throw new ArgumentNullException("audioEngine");
}
if (String.IsNullOrEmpty(nonStreamingWaveBankFilename))
{
throw new ArgumentNullException("nonStreamingWaveBankFilename");
}
bankData = TitleContainer.ReadToPointer(
nonStreamingWaveBankFilename,
out bankDataLen
);
FAudio.FACTAudioEngine_CreateInMemoryWaveBank(
audioEngine.handle,
bankData,
(uint)bankDataLen,
0,
0,
out handle
);
engine = audioEngine;
selfReference = new WeakReference(this, true);
engine.RegisterPointer(handle, selfReference);
IsDisposed = false;
}
public SoundBank(AudioEngine audioEngine, string filename)
{
if (audioEngine == null)
{
throw new ArgumentNullException("audioEngine");
}
if (String.IsNullOrEmpty(filename))
{
throw new ArgumentNullException("filename");
}
IntPtr bufferLen;
IntPtr buffer = TitleContainer.ReadToPointer(filename, out bufferLen);
FAudio.FACTAudioEngine_CreateSoundBank(
audioEngine.handle,
buffer,
(uint)bufferLen,
0,
0,
out handle
);
FNAPlatform.FreeFilePointer(buffer);
engine = audioEngine;
selfReference = new WeakReference(this, true);
dspSettings = new FAudio.F3DAUDIO_DSP_SETTINGS();
dspSettings.SrcChannelCount = 1;
dspSettings.DstChannelCount = engine.channels;
dspSettings.pMatrixCoefficients = Marshal.AllocHGlobal(
4 *
(int)dspSettings.SrcChannelCount *
(int)dspSettings.DstChannelCount
);
engine.RegisterPointer(handle, selfReference);
IsDisposed = false;
}
public AudioEngine(
string settingsFile,
TimeSpan lookAheadTime,
string rendererId
)
{
if (String.IsNullOrEmpty(settingsFile))
{
throw new ArgumentNullException("settingsFile");
}
// Allocate (but don't initialize just yet!)
FAudio.FACTCreateEngine(0, out handle);
// Grab RendererDetails
ushort rendererCount;
FAudio.FACTAudioEngine_GetRendererCount(
handle,
out rendererCount
);
if (rendererCount == 0)
{
FAudio.FACTAudioEngine_Release(handle);
throw new NoAudioHardwareException();
}
rendererDetails = new RendererDetail[rendererCount];
byte[] converted = new byte[0xFF * sizeof(short)];
for (ushort i = 0; i < rendererCount; i += 1)
{
FAudio.FACTRendererDetails details;
FAudio.FACTAudioEngine_GetRendererDetails(
handle,
i,
out details
);
unsafe
{
Marshal.Copy((IntPtr)details.displayName, converted, 0, converted.Length);
string name = System.Text.Encoding.Unicode.GetString(converted).TrimEnd('\0');
Marshal.Copy((IntPtr)details.rendererID, converted, 0, converted.Length);
string id = System.Text.Encoding.Unicode.GetString(converted).TrimEnd('\0');
rendererDetails[i] = new RendererDetail(name, id);
}
}
// Read entire file into memory, let FACT manage the pointer
IntPtr bufferLen;
IntPtr buffer = TitleContainer.ReadToPointer(settingsFile, out bufferLen);
// Generate engine parameters
FAudio.FACTRuntimeParameters settings = new FAudio.FACTRuntimeParameters();
settings.pGlobalSettingsBuffer = buffer;
settings.globalSettingsBufferSize = (uint)bufferLen;
settings.globalSettingsFlags = FAudio.FACT_FLAG_MANAGEDATA;
xactNotificationFunc = OnXACTNotification;
settings.fnNotificationCallback = Marshal.GetFunctionPointerForDelegate(
xactNotificationFunc
);
// Special parameters from constructor
settings.lookAheadTime = (uint)lookAheadTime.Milliseconds;
if (!string.IsNullOrEmpty(rendererId))
{
// FIXME: wchar_t? -flibit
settings.pRendererID = Marshal.StringToHGlobalAuto(rendererId);
}
// Init engine, finally
if (FAudio.FACTAudioEngine_Initialize(handle, ref settings) != 0)
{
throw new InvalidOperationException(
"Engine initialization failed!"
);
}
// Free the settings strings
if (settings.pRendererID != IntPtr.Zero)
{
Marshal.FreeHGlobal(settings.pRendererID);
}
// Init 3D audio
handle3D = new byte[FAudio.F3DAUDIO_HANDLE_BYTESIZE];
FAudio.FACT3DInitialize(
handle,
handle3D
);
// Grab channel count for DSP_SETTINGS
FAudio.FAudioWaveFormatExtensible mixFormat;
FAudio.FACTAudioEngine_GetFinalMixFormat(
handle,
out mixFormat
);
channels = mixFormat.Format.nChannels;
// All XACT references have to go through here...
notificationDesc = new FAudio.FACTNotificationDescription();
notificationDesc.flags = FAudio.FACT_FLAG_NOTIFICATION_PERSIST;
notificationDesc.type = FAudio.FACTNOTIFICATIONTYPE_WAVEBANKDESTROYED;
FAudio.FACTAudioEngine_RegisterNotification(
handle,
ref notificationDesc
);
notificationDesc.type = FAudio.FACTNOTIFICATIONTYPE_SOUNDBANKDESTROYED;
FAudio.FACTAudioEngine_RegisterNotification(
handle,
ref notificationDesc
);
notificationDesc.type = FAudio.FACTNOTIFICATIONTYPE_CUEDESTROYED;
FAudio.FACTAudioEngine_RegisterNotification(
handle,
ref notificationDesc
);
}