//
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;
}
}
void UpdateVolume2()
{
float value = CurrentVirtualChannel.GetTotalVolume() * CurrentVirtualChannel.GetRolloffFactor();
Al.alSourcef(alSource, Al.AL_GAIN, value);
OpenALSoundWorld.CheckError();
}
void UpdateSample()
{
int state;
Al.alGetSourcei(alSource, Al.AL_SOURCE_STATE, out state);
OpenALSoundWorld.CheckError();
if (state == Al.AL_STOPPED)
{
CurrentVirtualChannel.Stop();
}
}
//unsafe void UpdateMinDistance2()
//{
// if( currentSound3DBuffer != null )
// {
// float value = (float)CurrentVirtualChannel.MinDistance;
// int hr = IDirectSound3DBuffer8.SetMinDistance( currentSound3DBuffer, value,
// DSound.DS3D_IMMEDIATE );
// if( Wrapper.FAILED( hr ) )
// DirectSoundWorld.Warning( "IDirectSound3DBuffer8.SetMinDistance", hr );
// }
//}
//protected override void UpdateMinDistance()
//{
// DirectSoundWorld.criticalSection.Enter();
// if( currentSound != null )
// UpdateMinDistance2();
// DirectSoundWorld.criticalSection.Leave();
//}
unsafe void UpdatePitch2()
{
float pitch = (float)currentSound.waveFormat->nSamplesPerSec *
CurrentVirtualChannel.GetTotalPitch();
int hr = IDirectSoundBuffer.SetFrequency(currentSoundBuffer, (uint)pitch);
if (Wrapper.FAILED(hr))
{
DirectSoundWorld.Warning("IDirectSoundBuffer.SetFrequency", hr);
}
}
unsafe void UpdateSample()
{
uint status;
int hr = IDirectSoundBuffer.GetStatus(currentSoundBuffer, out status);
if (Wrapper.FAILED(hr))
{
DirectSoundWorld.Warning("IDirectSoundBuffer.GetStatus", hr);
return;
}
if ((status & DSound.DSBSTATUS_PLAYING) == 0)
{
CurrentVirtualChannel.Stop();
}
}
unsafe void UpdateVolume2()
{
float value = CurrentVirtualChannel.GetTotalVolume() * CurrentVirtualChannel.GetRolloffFactor();
int volume;
if (value > 0.001f)
{
volume = (int)(20.0f * 100.0f * Math.Log10(value));
}
else
{
volume = DSound.DSBVOLUME_MIN;
}
if (volume < DSound.DSBVOLUME_MIN)
{
volume = DSound.DSBVOLUME_MIN;
}
if (volume > DSound.DSBVOLUME_MAX)
{
volume = DSound.DSBVOLUME_MAX;
}
//update volume for dublicate buffers (IDirectSoundBuffer8.SetVolume problem)
//it need have volume not equal to original buffer.
bool isOriginalBuffer = false;
IDirectSoundBuffer *originalBuffer = (IDirectSoundBuffer *)
currentSound.soundBuffers[0].ToPointer();
isOriginalBuffer = originalBuffer == currentSoundBuffer;
if (!isOriginalBuffer)
{
int originalBufferVolume = 0;
IDirectSoundBuffer.GetVolume(originalBuffer, out originalBufferVolume);
if (volume == originalBufferVolume)
{
if (volume == DSound.DSBVOLUME_MAX)
{
volume = DSound.DSBVOLUME_MAX - 1;
}
else
{
volume++;
}
}
}
//change volume
int hr = IDirectSoundBuffer.SetVolume(currentSoundBuffer, volume);
if (Wrapper.FAILED(hr))
{
DirectSoundWorld.Warning("IDirectSoundBuffer.SetVolume", hr);
}
//update volume of dublicate buffers
if (isOriginalBuffer)
{
List <DirectSoundRealChannel> realChannels = DirectSoundWorld.Instance.realChannels;
for (int nRealChannel = 0; nRealChannel < realChannels.Count; nRealChannel++)
{
DirectSoundRealChannel realChannel = realChannels[nRealChannel];
if (realChannel != this && realChannel.currentSound == currentSound)
{
realChannel.UpdateVolume();
}
}
}
}
public void UpdateFileStreamFromThread()
{
if (currentSound == null)
{
return;
}
//update buffers
int processed;
Al.alGetSourcei(alSource, Al.AL_BUFFERS_PROCESSED, out processed);
OpenALSoundWorld.CheckError();
while (processed != 0)
{
int alStreamBuffer = 0;
Al.alSourceUnqueueBuffers(alSource, 1, ref alStreamBuffer);
OpenALSoundWorld.CheckError();
FileStream(alStreamBuffer);
if (streamDataAvailable)
{
Al.alSourceQueueBuffers(alSource, 1, ref alStreamBuffer);
OpenALSoundWorld.CheckError();
}
processed--;
}
//play if buffer stopped (from behind internal buffers processed)
int state;
Al.alGetSourcei(alSource, Al.AL_SOURCE_STATE, out state);
OpenALSoundWorld.CheckError();
bool stoppedNoQueued = false;
if (state == Al.AL_STOPPED)
{
int queued;
Al.alGetSourcei(alSource, Al.AL_BUFFERS_QUEUED, out queued);
if (queued != 0)
{
Al.alSourcePlay(alSource);
}
else
{
stoppedNoQueued = true;
}
}
//file stream played
OpenALFileStreamSound fileStreamSound = (OpenALFileStreamSound)currentSound;
if (!streamDataAvailable && stoppedNoQueued)
{
if ((currentSound.Mode & SoundMode.Loop) != 0)
{
//loop play. we need recreate vorbis file
//stop and unqueues sources
Al.alSourceStop(alSource);
Al.alGetSourcei(alSource, Al.AL_BUFFERS_PROCESSED, out processed);
OpenALSoundWorld.CheckError();
while (processed != 0)
{
int alStreamBuffer = 0;
Al.alSourceUnqueueBuffers(alSource, 1, ref alStreamBuffer);
OpenALSoundWorld.CheckError();
processed--;
}
//recreate vorbis file
fileStreamSound.Rewind();
FileStreamStartPlay();
//Pause = false;
Al.alSourcePlay(alSource);
OpenALSoundWorld.CheckError();
}
else
{
CurrentVirtualChannel.Stop();
}
}
}
void UpdatePitch2()
{
Al.alSourcef(alSource, Al.AL_PITCH, CurrentVirtualChannel.GetTotalPitch());
OpenALSoundWorld.CheckError();
}
