internal static AudioListenerExtension AddSpatializerExtension(AudioListener listener)
{
AudioListenerExtension result;
if (listener.spatializerExtension != null)
{
result = listener.spatializerExtension;
}
else
{
AudioExtensionManager.RegisterBuiltinDefinitions();
foreach (AudioSpatializerExtensionDefinition audioSpatializerExtensionDefinition in AudioExtensionManager.m_ListenerSpatializerExtensionDefinitions)
{
if (AudioSettings.GetSpatializerPluginName() == audioSpatializerExtensionDefinition.spatializerName || AudioSettings.GetAmbisonicDecoderPluginName() == audioSpatializerExtensionDefinition.spatializerName)
{
AudioListenerExtension audioListenerExtension = listener.AddExtension(audioSpatializerExtensionDefinition.definition.GetExtensionType());
if (audioListenerExtension != null)
{
audioListenerExtension.audioListener = listener;
listener.spatializerExtension = audioListenerExtension;
AudioExtensionManager.WriteExtensionProperties(audioListenerExtension, audioSpatializerExtensionDefinition.definition.GetExtensionType().Name);
return(audioListenerExtension);
}
}
}
result = null;
}
return(result);
}
internal static void Update()
{
AudioExtensionManager.RegisterBuiltinDefinitions();
AudioListener audioListener = AudioExtensionManager.GetAudioListener() as AudioListener;
if (audioListener != null)
{
AudioListenerExtension audioListenerExtension = AudioExtensionManager.AddSpatializerExtension(audioListener);
if (audioListenerExtension != null)
{
audioListenerExtension.ExtensionUpdate();
}
}
for (int i = 0; i < AudioExtensionManager.m_SourceExtensionsToUpdate.Count; i++)
{
AudioExtensionManager.m_SourceExtensionsToUpdate[i].ExtensionUpdate();
}
AudioExtensionManager.m_NextStopIndex = ((AudioExtensionManager.m_NextStopIndex < AudioExtensionManager.m_SourceExtensionsToUpdate.Count) ? AudioExtensionManager.m_NextStopIndex : 0);
int num = (AudioExtensionManager.m_SourceExtensionsToUpdate.Count <= 0) ? 0 : (1 + AudioExtensionManager.m_SourceExtensionsToUpdate.Count / 8);
for (int j = 0; j < num; j++)
{
AudioSourceExtension audioSourceExtension = AudioExtensionManager.m_SourceExtensionsToUpdate[AudioExtensionManager.m_NextStopIndex];
if (audioSourceExtension.audioSource == null || !audioSourceExtension.audioSource.enabled || !audioSourceExtension.audioSource.isPlaying)
{
audioSourceExtension.Stop();
AudioExtensionManager.RemoveExtensionFromManager(audioSourceExtension);
}
else
{
AudioExtensionManager.m_NextStopIndex++;
AudioExtensionManager.m_NextStopIndex = ((AudioExtensionManager.m_NextStopIndex < AudioExtensionManager.m_SourceExtensionsToUpdate.Count) ? AudioExtensionManager.m_NextStopIndex : 0);
}
}
}
// Check to see if we need to add a spatializer extension to the audio listener.
static internal AudioListenerExtension AddSpatializerExtension(AudioListener listener)
{
if (listener.spatializerExtension != null)
{
return(listener.spatializerExtension);
}
RegisterBuiltinDefinitions();
foreach (AudioSpatializerExtensionDefinition extensionDefinition in m_ListenerSpatializerExtensionDefinitions)
{
if ((AudioSettings.GetSpatializerPluginName() == extensionDefinition.spatializerName) ||
(AudioSettings.GetAmbisonicDecoderPluginName() == extensionDefinition.spatializerName))
{
AudioListenerExtension newExtension = listener.AddExtension(extensionDefinition.definition.GetExtensionType());
if (newExtension != null)
{
newExtension.audioListener = listener;
listener.spatializerExtension = newExtension;
WriteExtensionProperties(newExtension, extensionDefinition.definition.GetExtensionType().Name);
return(newExtension);
}
}
}
return(null);
}
internal AudioListenerExtension AddExtension(Type extensionType)
{
if (this.spatializerExtension == null)
{
this.spatializerExtension = (ScriptableObject.CreateInstance(extensionType) as AudioListenerExtension);
}
return(this.spatializerExtension);
}
internal static void WriteExtensionProperties(AudioListenerExtension extension, string extensionName)
{
if (AudioExtensionManager.m_ListenerSpatializerExtensionName == 0)
{
AudioExtensionManager.m_ListenerSpatializerExtensionName = extensionName;
}
for (int i = 0; i < extension.audioListener.GetNumExtensionProperties(); i++)
{
if (extension.audioListener.ReadExtensionName(i) == AudioExtensionManager.m_ListenerSpatializerExtensionName)
{
PropertyName propertyName = extension.audioListener.ReadExtensionPropertyName(i);
float propertyValue = extension.audioListener.ReadExtensionPropertyValue(i);
extension.WriteExtensionProperty(propertyName, propertyValue);
}
}
}
static internal void WriteExtensionProperties(AudioListenerExtension extension, string extensionName)
{
if (m_ListenerSpatializerExtensionName == 0)
{
m_ListenerSpatializerExtensionName = extensionName;
}
for (int listenerIndex = 0; listenerIndex < extension.audioListener.GetNumExtensionProperties(); listenerIndex++)
{
if (extension.audioListener.ReadExtensionName(listenerIndex) == m_ListenerSpatializerExtensionName)
{
PropertyName propertyName = extension.audioListener.ReadExtensionPropertyName(listenerIndex);
float propertyValue = extension.audioListener.ReadExtensionPropertyValue(listenerIndex);
extension.WriteExtensionProperty(propertyName, propertyValue);
}
}
}
// This manager Update function calls ExtensionUpdate for all extensions on playing audio sources. It also goes through part of the list of
// extensions to determine which ones have stopped and should be removed. The stop check is fairly expensive, so we handle it separately and lazily to
// help keep ExtensionUpdate very cheap. Each extension's OnDestroy function is a fail-safe and will remove the extension from the manager's list so
// we are never handling destroyed extensions here.
static internal void Update()
{
RegisterBuiltinDefinitions();
AudioListener listener = GetAudioListener() as AudioListener;
if (listener != null)
{
AudioListenerExtension extension = AddSpatializerExtension(listener);
if (extension != null)
{
extension.ExtensionUpdate();
}
}
for (int i = 0; i < m_SourceExtensionsToUpdate.Count; i++)
{
m_SourceExtensionsToUpdate[i].ExtensionUpdate();
}
m_NextStopIndex = (m_NextStopIndex >= m_SourceExtensionsToUpdate.Count) ? 0 : m_NextStopIndex;
// Perform stop checks on roughly 1/8th of the list of playing audio source extensions. We're using that equation instead of a fixed maximum like 10 so
// that we don't get into a situation where the game is playing more sounds every frame than we are stop-checking.
int numStopChecks = (m_SourceExtensionsToUpdate.Count > 0) ? 1 + (m_SourceExtensionsToUpdate.Count / 8) : 0;
for (int i = 0; i < numStopChecks; i++)
{
AudioSourceExtension extension = m_SourceExtensionsToUpdate[m_NextStopIndex];
if ((extension.audioSource == null) || !extension.audioSource.enabled || !extension.audioSource.isPlaying)
{
extension.Stop();
RemoveExtensionFromManager(extension);
}
else
{
m_NextStopIndex++;
m_NextStopIndex = (m_NextStopIndex >= m_SourceExtensionsToUpdate.Count) ? 0 : m_NextStopIndex;
}
}
}
