private bool RefillBuffer(byte[] buffer, int sampleOffset, int bufferSize)
{
int read;
if (_secondaryBuffer.IsBufferLost)
{
_secondaryBuffer.Restore();
}
if (_playbackState == PlaybackState.Paused)
{
Array.Clear(buffer, 0, buffer.Length);
read = bufferSize;
}
else
{
if (_source != null)
{
read = _source.Read(buffer, 0, bufferSize);
}
else
{
return(false);
}
}
if (read > 0)
{
return(_secondaryBuffer.Write(buffer, sampleOffset, bufferSize));
}
return(false);
}
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);
}
}
}
