void UpdateVolume2()
{
float value = CurrentVirtualChannel.GetTotalVolume() * CurrentVirtualChannel.GetRolloffFactor();
Al.alSourcef(alSource, Al.AL_GAIN, value);
OpenALSoundWorld.CheckError();
}
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();
}
}
}
}