//file,data streams
unsafe void BeginStreamPlay()
{
//clear buffer
{
void *lockedBuffer = null;
uint lockedBufferSize = 0;
int hr = IDirectSoundBuffer.Lock(currentSoundBuffer, 0, (uint)currentSound.bufferSize,
&lockedBuffer, &lockedBufferSize, (void **)null, (uint *)null, 0);
if (Wrapper.FAILED(hr))
{
DirectSoundWorld.Warning("IDirectSoundBuffer.Lock", hr);
return;
}
NativeUtils.FillMemory((IntPtr)lockedBuffer, (int)lockedBufferSize,
(byte)(currentSound.waveFormat->wBitsPerSample == 8 ? 128 : 0));
IDirectSoundBuffer.Unlock(currentSoundBuffer, lockedBuffer, lockedBufferSize, null, 0);
}
UpdateStreamBuffer(true);
UpdateStreamBuffer(false);
streamNeedWriteFirstPart = true;
needStopAfterBufferRead = false;
}
unsafe public bool FillSoundBuffersWithData()
{
IDirectSoundBuffer *soundBuffer = (IDirectSoundBuffer *)soundBuffers[0].ToPointer();
int hr;
void *lockedBuffer = null;
uint lockedBufferSize = 0;
hr = IDirectSoundBuffer.Lock(soundBuffer, 0, (uint)soundSamples.Length,
&lockedBuffer, &lockedBufferSize, (void **)null, (uint *)null, 0);
if (Wrapper.FAILED(hr))
{
DirectSoundWorld.Warning("IDirectSoundBuffer.Lock", hr);
return(false);
}
if ((int)lockedBufferSize < soundSamples.Length)
{
Log.Fatal("DirectSampleSound.FillSoundBuffersWithData: " +
"lockedBufferSize >= soundSamples->Length");
}
Marshal.Copy(soundSamples, 0, (IntPtr)lockedBuffer, soundSamples.Length);
if (soundSamples.Length < (int)lockedBufferSize)
{
// fill with silence remaining bytes
NativeUtils.FillMemory((IntPtr)((byte *)lockedBuffer + soundSamples.Length),
(int)lockedBufferSize - soundSamples.Length,
(byte)(waveFormat->wBitsPerSample == 8 ? 128 : 0));
}
IDirectSoundBuffer.Unlock(soundBuffer, lockedBuffer, lockedBufferSize, (void *)null, 0);
return(true);
}
unsafe void UpdateStreamBuffer(bool firstPart)
{
DirectFileStreamSound currentFileStreamSound = currentSound as DirectFileStreamSound;
void *lockedBuffer = null;
uint lockedBufferSize = 0;
int hr = IDirectSoundBuffer.Lock(currentSoundBuffer,
(uint)(firstPart ? 0 : currentSound.bufferSize / 2),
(uint)(currentSound.bufferSize / 2), &lockedBuffer, &lockedBufferSize,
(void **)null, (uint *)null, 0);
if (Wrapper.FAILED(hr))
{
DirectSoundWorld.Warning("IDirectSoundBuffer.Lock", hr);
return;
}
if ((int)lockedBufferSize < currentSound.bufferSize / 2)
{
Log.Fatal("DirectSoundRealChannel.UpdateStreamBuffer: " +
"lockedBufferSize >= currentSound->bufferSize / 2.");
}
bool repeated = false;
int readed = 0;
again:
if (currentFileStreamSound != null)
{
readed += ReadDataFromFileStream((IntPtr)((byte *)lockedBuffer + readed),
currentSound.bufferSize / 2 - readed);
}
else
{
readed += ReadDataFromDataStream((IntPtr)((byte *)lockedBuffer + readed),
currentSound.bufferSize / 2 - readed);
}
if (readed < currentSound.bufferSize / 2)
{
NativeUtils.FillMemory((IntPtr)((byte *)lockedBuffer + readed),
(int)lockedBufferSize - readed,
(byte)(currentSound.waveFormat->wBitsPerSample == 8 ? 128 : 0));
if ((int)(currentSound.Mode & SoundMode.Loop) != 0)
{
if (currentFileStreamSound != null)
{
//loop play. we need recreate vorbis file
currentFileStreamSound.Rewind();
if (!repeated)
{
repeated = true;
goto again;
}
}
}
}
if (readed == 0)
{
//need stop
if ((int)(currentSound.Mode & SoundMode.Loop) == 0)
{
if (currentFileStreamSound != null)
{
needStopAfterBufferRead = true;
}
}
}
IDirectSoundBuffer.Unlock(currentSoundBuffer, lockedBuffer, lockedBufferSize, null, 0);
}