public SoundManager(System.IntPtr handle, short BitsPerSample, short Channels, int SamplesPerSecond)
{
System.AppDomain.CurrentDomain.AssemblyResolve += new System.ResolveEventHandler(CurrentDomain_AssemblyResolve);
SlimDX.Multimedia.WaveFormat format = new SlimDX.Multimedia.WaveFormat();
format.BitsPerSample = BitsPerSample;
format.Channels = Channels;
format.SamplesPerSecond = SamplesPerSecond;
format.BlockAlignment = (short)(format.Channels * format.BitsPerSample / 8);
format.AverageBytesPerSecond = format.SamplesPerSecond * format.BlockAlignment;
//format.FormatTag = WaveFormatTag.Pcm;
format.FormatTag = SlimDX.Multimedia.WaveFormatTag.Pcm;
device = new XAudio2(XAudio2Flags.None, ProcessorSpecifier.AnyProcessor);
device.StartEngine();
masteringVoice = new MasteringVoice(device, Channels, SamplesPerSecond);
sourceVoice = new SourceVoice(device, format, VoiceFlags.None);
//FilterParameters fp = new FilterParameters();
//fp.Frequency = 0.5f;//sourceVoice.FilterParameters.Frequency;
//fp.OneOverQ = 0.5f;//sourceVoice.FilterParameters.OneOverQ;
//fp.Type = FilterType.LowPassFilter;
//sourceVoice.FilterParameters = fp;
//sourceVoice.BufferEnd += new System.EventHandler<ContextEventArgs>(sourceVoice_BufferEnd);
// sourceVoice.StreamEnd += new System.EventHandler(sourceVoice_StreamEnd);
// sourceVoice.BufferStart += new System.EventHandler<ContextEventArgs>(sourceVoice_BufferStart);
// sourceVoice.VoiceError += new EventHandler<ErrorEventArgs>(sourceVoice_VoiceError);
sourceVoice.Volume = 0.5f;
buffer = new AudioBuffer();
buffer.AudioData = new System.IO.MemoryStream();
waveFormat = format;
bytesPerSample = (waveFormat.BitsPerSample / 8) * Channels;
for (int i = 0; i < BUFFER_COUNT; i++)
{
//sampleData[i] = new float[SAMPLE_SIZE * Channels];
sampleData[i] = new short[SAMPLE_SIZE * Channels];
bData[i] = new byte[SAMPLE_SIZE * bytesPerSample];
}
sourceVoice.SubmitSourceBuffer(buffer);
}
private void Initialize()
{
if (this.initialized)
{
return;
}
this.initialized = true;
this.directSound = new DirectSound(DirectSoundGuid.DefaultPlaybackDevice);
this.directSound.SetCooperativeLevel(FourDO.Program.GetMainWindowHwnd(), CooperativeLevel.Normal);
this.bufferFormat = new SlimDX.Multimedia.WaveFormat();
this.bufferFormat.Channels = 2;
this.bufferFormat.BitsPerSample = 16;
this.bufferFormat.FormatTag = SlimDX.Multimedia.WaveFormatTag.Pcm;
this.bufferFormat.SamplesPerSecond = 44100;
this.bufferFormat.BlockAlignment = (short)(bufferFormat.Channels * (bufferFormat.BitsPerSample / 8));
this.bufferFormat.AverageBytesPerSecond = bufferFormat.SamplesPerSecond * bufferFormat.BlockAlignment;
this.bufferDescription = new SoundBufferDescription();
this.bufferDescription.Flags = BufferFlags.ControlVolume | BufferFlags.GlobalFocus;
this.bufferDescription.Format = this.bufferFormat;
this.bufferDescription.SizeInBytes = this.bufferFormat.AverageBytesPerSecond * 2; // Two seconds of buffer
if (bufferDescription.SizeInBytes % TEMP_BUFFER_SIZE != 0 || 44100 % TEMP_BUFFER_SIZE != 0)
{
throw new Exception("Audio buffer size needs to be a multiple of the temporary buffer size");
}
this.playBuffer = new SecondarySoundBuffer(directSound, this.bufferDescription);
this.emptyBuffer = new uint[this.bufferDescription.SizeInBytes / sizeof(uint)];
this.play_copy_guess_offset = (int)(this.bufferFormat.SamplesPerSecond * (PLAY_COPY_GUESS_MILLISECONDS / (double)1000));
this.play_copy_guess_offset *= this.bufferFormat.BlockAlignment;
this.RecalculateBufferOffsets(this.bufferDelayMilliseconds);
this.offTimeTicksThreshhold = (long)((TIME_OFF_DURATION_MILLISECONDS / ((double)1000) * PerformanceCounter.Frequency));
}
