//* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// OnAudioFilterRead (separate thread)
//* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
/// <summary>
/// Raises the audio filter read event.
/// We will spatialize the audio here
/// NOTE: It's important that we get the audio attenuation curve for volume,
/// that way we can feed it into our spatializer and have things sound match
/// with bypass on/off
/// </summary>
/// <param name="data">Data.</param>
/// <param name="channels">Channels.</param>
///
void OnAudioFilterRead(float[] data, int channels)
{
#if DEBUG_AudioSource
if (debugOn)
{
if (audioFrames > 0)
{
audioFrames--;
}
}
#endif
// Problem: We cannot read timer here.
// However, we can read time-stamp via plugin
// This is required to smooth out the position,
// since the main loop is only allowed to update position
// of sound, but is running at a different frequency then
// the audio loop.
//
// Therefore, we will need to dead reckon the position of the sound.
// Do not spatialize if we are not playing
if ((isPlaying == false) ||
(Bypass == true) ||
(OSPManager.GetBypass() == true) ||
(OSPManager.IsInitialized() == false))
{
return;
}
float dTime = GetTime(true) - relPosTime;
lock (this)
{
relPos += relVel * dTime;
relPosTime = GetTime(true);
}
// TODO: Need to ensure that sound is not played before context is
// legal
if (context != sNoContext)
{
// Set the position for this context and sound
OSPManager.SetPositionRel(context, relPos.x, relPos.y, relPos.z);
//Spatialize (local override of InvSq is passed in)
OSPManager.Spatialize(context, data, useInverseSquare, falloffNear, falloffFar);
}
}
// Token: 0x06003728 RID: 14120 RVA: 0x0011AAB0 File Offset: 0x00118EB0
private void OnAudioFilterRead(float[] data, int channels)
{
if (!this.isPlaying || this.Bypass || OSPManager.GetBypass() || !OSPManager.IsInitialized())
{
return;
}
float d = this.GetTime(true) - this.relPosTime;
lock (this)
{
this.relPos += this.relVel * d;
this.relPosTime = this.GetTime(true);
}
if (this.context != -1)
{
OSPManager.SetPositionRel(this.context, this.relPos.x, this.relPos.y, this.relPos.z);
OSPManager.Spatialize(this.context, data, this.useInverseSquare, this.falloffNear, this.falloffFar);
}
}
// Token: 0x06003719 RID: 14105 RVA: 0x0011A360 File Offset: 0x00118760
private void Update()
{
if (!this.audioSource)
{
return;
}
if (!this.isPlaying && this.audioSource.isPlaying)
{
if (!OSPManager.IsInitialized())
{
return;
}
this.Acquire();
this.SetRelativeSoundPos(true);
lock (this)
{
this.isPlaying = true;
}
this.drain = false;
}
if (this.isPlaying)
{
if (!this.audioSource.isPlaying)
{
lock (this)
{
this.isPlaying = false;
}
this.Release();
return;
}
if (this.Bypass || OSPManager.GetBypass())
{
this.audioSource.spatialBlend = this.panLevel;
this.audioSource.spread = this.spread;
}
else
{
float spatialBlend = 1f;
if (OSPManager.GetUseInverseSquareAttenuation() || this.useInverseSquare)
{
spatialBlend = 0f;
}
this.audioSource.spatialBlend = spatialBlend;
this.audioSource.spread = 180f;
}
if (this.context != -1)
{
OSPManager.SetDisableReflectionsOnSound(this.context, this.disableReflections);
}
if (this.audioSource.time == 0f && this.audioSource.loop)
{
this.SetRelativeSoundPos(false);
}
else if (this.audioSource.time >= this.audioSource.clip.length && !this.audioSource.loop)
{
this.drainTime = OSPManager.GetDrainTime(this.context);
this.drain = true;
}
else
{
this.SetRelativeSoundPos(false);
}
if (this.drain)
{
this.drainTime -= Time.deltaTime;
if (this.drainTime < 0f)
{
this.drain = false;
lock (this)
{
this.isPlaying = false;
}
this.Stop();
}
}
}
}
/// <summary>
/// Update this instance.
/// </summary>
void Update()
{
if (!audioSource)
{
return;
}
// If user called Play on the acutal AudioSource, account for this
// NOTE: There may be a potential issue with calling AudioSource.Stop on a
// looping sound, since the Update may not catch this. We might need to catch
// this edge case at some point; a one-shot sound will stop automatically and
// return spatialization resources.
if ((isPlaying == false) && (audioSource.isPlaying))
{
// This is a copy of OSPAudioSource Play function, minus
// calling Play on audio source since it's already been called
// Bail if manager has not even started
if (OSPManager.IsInitialized() == false)
{
return;
}
// We will grab a context at this point, and set the right values
// to allow for spatialization to take effect
Aquire();
// We will set the relative position of this sound now before we start playing
SetRelativeSoundPos(true);
// We are ready to play the sound
// Commented out, kept for readability
// audioSource.Play();
lock (this) isPlaying = true;
}
// If sound is playing on it's own and dies off, we need to
// Reset
if (isPlaying == true)
{
// If we stopped the sound using AudioSource, Release resources
if (audioSource.isPlaying == false)
{
lock (this) isPlaying = false;
Release();
return;
}
// We will go back and forth between spatial processing
// and native 2D panning
if ((Bypass == true) || (OSPManager.GetBypass() == true))
{
#if (!UNITY5)
audioSource.spatialBlend = panLevel;
#else
audioSource.spatialBlend = panLevel;
#endif
audioSource.spread = spread;
}
else
{
// We want to remove FMod curve attenuation if we are doing our
// own internal calc
float pl = sSetPanLevel;
if (OSPManager.GetUseInverseSquareAttenuation() == true)
{
pl = sSetPanLevelInvSq;
}
#if (!UNITY5)
audioSource.spatialBlend = pl;
#else
audioSource.spatialBlend = pl;
#endif
audioSource.spread = sSetSpread;
}
// Update FrequencyHints and local reflection enable/disable
if (context != sNoContext)
{
OSPManager.SetFrequencyHint(context, frequencyHint);
OSPManager.SetDisableReflectionsOnSound(context, disableReflections);
}
// return the context when the sound has finished playing
if ((audioSource.time >= audioSource.clip.length) && (audioSource.loop == false))
{
// One last pass to allow for the tail portion of the sound
// to finish
drainTime = OSPManager.GetDrainTime(context);
drain = true;
}
else
{
// We must set all positional properties here, not in
// OnAudioFilterRead. We might consider a better approach
// to interpolate the current location for better localization,
// should the resolution of setting it here sound jittery due
// to thread frequency mismatch.
SetRelativeSoundPos(false);
#if DEBUG_AudioSource
// Time main thread and audio thread
if (debugOn)
{
// Get audio frequency
if (audioFrames == 0)
{
float ct = 1.0f / (GetTime(false) - dTimeMainLoop);
Debug.LogWarning(System.String.Format("U: {0:F0}", ct));
ct = 100.0f / (GetTime(true) - PrevAudioTime);
Debug.LogWarning(System.String.Format("A: {0:F0}", ct));
audioFrames = 100;
PrevAudioTime = (float)GetTime(true);
}
dTimeMainLoop = (float)GetTime(false);
}
#endif
}
if (drain == true)
{
// Keep playing until we safely drain out the early reflections
drainTime -= Time.deltaTime;
if (drainTime < 0.0f)
{
drain = false;
lock (this) isPlaying = false;
// Stop will both stop audio from playing (keeping OnAudioFilterRead from
// running with a held audio source) as well as release the spatialization
// resources via Release()
Stop();
}
}
}
}
