public void CanPlayBuffers()
{
using (var dsound = CreateDirectSound8())
{
dsound.SetCooperativeLevel(DSUtils.GetDesktopWindow(), DSCooperativeLevelType.DSSCL_NORMAL);
WaveFormat waveFormat = new WaveFormat(44100, 16, 2);
using (var primaryBuffer = new DirectSoundPrimaryBuffer(dsound))
using (var secondaryBuffer = new DirectSoundSecondaryBuffer(dsound, waveFormat, (int)waveFormat.MillisecondsToBytes(10000)))
{
primaryBuffer.Play(DSBPlayFlags.DSBPLAY_LOOPING);
var caps = secondaryBuffer.BufferCaps;
var data = GenerateData(caps.dwBufferBytes / 2, waveFormat);
if (secondaryBuffer.Write(data, 0, data.Length))
{
secondaryBuffer.Play(DSBPlayFlags.DSBPLAY_LOOPING);
}
else
{
Assert.Fail("Could not write data.");
}
Thread.Sleep(1);
}
}
}
private void InitializeInternal()
{
//Use Desktophandle as default handle
IntPtr handle = DSUtils.GetDesktopWindow();
IntPtr pdsound;
DirectSoundException.Try(NativeMethods.DirectSoundCreate8(ref _device, out pdsound, IntPtr.Zero), "DSInterop", "DirectSoundCreate8");
_directSound = new DirectSound8(pdsound);
_directSound.SetCooperativeLevel(handle, DSCooperativeLevelType.DSSCL_NORMAL); //use normal as default
if (!_directSound.SupportsFormat(_source.WaveFormat))
{
if (_source.WaveFormat.WaveFormatTag == AudioEncoding.IeeeFloat)
_source = _source.ToSampleSource().ToWaveSource(16);
if (_directSound.SupportsFormat(new WaveFormat(_source.WaveFormat.SampleRate, 16, _source.WaveFormat.Channels, _source.WaveFormat.WaveFormatTag)))
_source = _source.ToSampleSource().ToWaveSource(16);
else if (_directSound.SupportsFormat(new WaveFormat(_source.WaveFormat.SampleRate, 8, _source.WaveFormat.Channels, _source.WaveFormat.WaveFormatTag)))
_source = _source.ToSampleSource().ToWaveSource(8);
else
throw new InvalidOperationException("Invalid WaveFormat. WaveFormat specified by parameter {_source} is not supported by this DirectSound-Device.");
if (!_directSound.SupportsFormat(_source.WaveFormat))
throw new InvalidOperationException("Invalid WaveFormat. WaveFormat specified by parameter {_source} is not supported by this DirectSound-Device.");
}
WaveFormat waveFormat = _source.WaveFormat;
int bufferSize = (int)waveFormat.MillisecondsToBytes(_latency);
_primaryBuffer = new DirectSoundPrimaryBuffer(_directSound);
_secondaryBuffer = new DirectSoundSecondaryBuffer(_directSound, waveFormat, bufferSize);
}
private void CleanupRessources()
{
if (_directSoundNotify != null)
{
_directSoundNotify.Dispose();
_directSoundNotify = null;
}
if (_secondaryBuffer != null)
{
_secondaryBuffer.Stop();
_secondaryBuffer.Dispose();
_secondaryBuffer = null;
}
if (_primaryBuffer != null)
{
_primaryBuffer.Stop();
_primaryBuffer.Dispose();
_primaryBuffer = null;
}
if (_directSound != null)
{
_directSound.Dispose();
_directSound = null;
}
//_isInitialized = false;
}
