//
public void Update()
{
if (currentSound == null)
{
return;
}
if ((currentSound.Mode & SoundMode.Mode3D) != 0)
{
UpdateVolume2();
}
DirectSampleSound currentSampleSound = currentSound as DirectSampleSound;
if (currentSampleSound != null)
{
UpdateSample();
return;
}
DirectDataStreamSound currentDataStreamSound = currentSound as DirectDataStreamSound;
if (currentDataStreamSound != null)
{
UpdateStream();
}
if (needStopVirtualChannel)
{
CurrentVirtualChannel.Stop();
needStopVirtualChannel = false;
}
}
unsafe public override Sound SoundCreateDataBuffer(SoundMode mode, int channels,
int frequency, int bufferSize, DataReadDelegate dataReadCallback)
{
criticalSection.Enter();
Sound sound;
if ((int)(mode & SoundMode.Record) != 0)
{
DirectCaptureSound captureSound = new DirectCaptureSound(
mode, channels, frequency, bufferSize);
if (captureSound.soundCapture == null)
{
captureSound = null;
}
sound = captureSound;
}
else
{
sound = new DirectDataStreamSound(mode, channels, frequency,
bufferSize, dataReadCallback);
}
criticalSection.Leave();
return(sound);
}
int ReadDataFromDataStream(IntPtr buffer, int needRead)
{
DirectDataStreamSound currentDataStreamSound = (DirectDataStreamSound)currentSound;
if (tempDataStreamReadArray.Length < needRead)
{
tempDataStreamReadArray = new byte[needRead];
}
int readed = currentDataStreamSound.dataReadCallback(tempDataStreamReadArray, 0, needRead);
if (readed != 0)
{
Marshal.Copy(tempDataStreamReadArray, 0, buffer, readed);
}
return(readed);
}
unsafe protected override void PostAttachVirtualChannel()
{
DirectSoundWorld.criticalSection.Enter();
int hr;
currentSound = (DirectSound)CurrentVirtualChannel.CurrentSound;
bool mode3d = (int)(currentSound.Mode & SoundMode.Mode3D) != 0;
bool loop = (int)(currentSound.Mode & SoundMode.Loop) != 0;
//DirectSampleSound
DirectSampleSound currentSampleSound = currentSound as DirectSampleSound;
if (currentSampleSound != null)
{
int lastBufferCount = currentSound.soundBuffers.Count;
currentSoundBuffer = currentSound.GetBuffer(currentSampleSound.soundSamples.Length);
if (currentSoundBuffer == null)
{
PreDetachVirtualChannel();
DirectSoundWorld.criticalSection.Leave();
return;
}
bool needFillData = false;
if (lastBufferCount == 0)
{
needFillData = true;
}
bool restored = false;
if (!currentSound.RestoreSoundBuffers(out restored))
{
PreDetachVirtualChannel();
DirectSoundWorld.criticalSection.Leave();
return;
}
if (restored)
{
needFillData = true;
}
if (needFillData)
{
if (!currentSampleSound.FillSoundBuffersWithData())
{
PreDetachVirtualChannel();
DirectSoundWorld.criticalSection.Leave();
return;
}
}
}
//DirectFileStreamSound, DirectDataStreamSound
DirectFileStreamSound currentFileStreamSound = currentSound as DirectFileStreamSound;
DirectDataStreamSound currentDataStreamSound = currentSound as DirectDataStreamSound;
if (currentFileStreamSound != null || currentDataStreamSound != null)
{
int needBufferSize;
if (currentFileStreamSound != null)
{
int numSamples = (int)currentFileStreamSound.vorbisFile.pcm_total(-1);
int channels;
int rate;
currentFileStreamSound.vorbisFile.get_info(-1, out channels, out rate);
int sizeInBytes = numSamples * channels * 2;
needBufferSize = sizeInBytes / 2;
if (needBufferSize > 65536 * 2)
{
needBufferSize = 65536 * 2;
}
}
else
{
needBufferSize = currentDataStreamSound.creationBufferSize;
}
currentSoundBuffer = currentSound.GetBuffer(needBufferSize);
if (currentSoundBuffer == null)
{
PreDetachVirtualChannel();
DirectSoundWorld.criticalSection.Leave();
return;
}
streamBuffer = (byte *)NativeUtils.Alloc(NativeMemoryAllocationType.SoundAndVideo,
currentSound.bufferSize);
streamBufferLength = 0;
bool restored = false;
if (!currentSound.RestoreSoundBuffers(out restored))
{
PreDetachVirtualChannel();
DirectSoundWorld.criticalSection.Leave();
return;
}
if (restored)
{
//buffer will be cleared in the BeginStreamPlay()
}
}
//currentSound3DBuffer
if (mode3d)
{
void */*IDirectSound3DBuffer8*/ sound3DBuffer;
GUID guid = DSound.IID_IDirectSound3DBuffer8;
hr = IDirectSoundBuffer.QueryInterface(currentSoundBuffer, ref guid, &sound3DBuffer);
if (Wrapper.FAILED(hr))
{
PreDetachVirtualChannel();
DirectSoundWorld.Warning("IDirectSoundBuffer.QueryInterface", hr);
DirectSoundWorld.criticalSection.Leave();
return;
}
currentSound3DBuffer = (IDirectSound3DBuffer8 *)sound3DBuffer;
}
//update parameters
if (mode3d)
{
UpdatePosition2();
UpdateVelocity2();
}
else
{
UpdatePan2();
}
UpdatePitch2();
UpdateVolume2();
UpdateTime2();
if (currentFileStreamSound != null || currentDataStreamSound != null)
{
BeginStreamPlay();
}
uint playFlags = 0;
if (loop || currentFileStreamSound != null || currentDataStreamSound != null)
{
playFlags |= DSound.DSBPLAY_LOOPING;
}
hr = IDirectSoundBuffer.Play(currentSoundBuffer, 0, 0, playFlags);
if (Wrapper.FAILED(hr))
{
PreDetachVirtualChannel();
DirectSoundWorld.Warning("IDirectSoundBuffer.Play", hr);
DirectSoundWorld.criticalSection.Leave();
return;
}
if (currentFileStreamSound != null)
{
DirectSoundWorld.Instance.fileStreamRealChannels.Add(this);
}
needStopVirtualChannel = false;
DirectSoundWorld.criticalSection.Leave();
}
unsafe public override Sound SoundCreateDataBuffer( SoundMode mode, int channels,
int frequency, int bufferSize, DataReadDelegate dataReadCallback )
{
criticalSection.Enter();
Sound sound;
if( (int)( mode & SoundMode.Record ) != 0 )
{
DirectCaptureSound captureSound = new DirectCaptureSound(
mode, channels, frequency, bufferSize );
if( captureSound.soundCapture == null )
captureSound = null;
sound = captureSound;
}
else
{
sound = new DirectDataStreamSound( mode, channels, frequency,
bufferSize, dataReadCallback );
}
criticalSection.Leave();
return sound;
}