internal ScheduledAudioFileRegion GetAudioFileRegion()
{
if (alreadyUsed)
{
throw new InvalidOperationException("You should not call SetScheduledFileRegion with a previously set region instance");
}
IntPtr ptr = IntPtr.Zero;
if (completionHandler != null)
{
handle = GCHandle.Alloc(this);
ptr = GCHandle.ToIntPtr(handle);
}
var ret = new ScheduledAudioFileRegion {
TimeStamp = TimeStamp,
CompletionHandlerUserData = ptr,
CompletionHandler = ptr != IntPtr.Zero ? static_ScheduledAudioFileRegionCompletionHandler : null,
AudioFile = AudioFile.Handle,
LoopCount = LoopCount,
StartFrame = StartFrame,
FramesToPlay = FramesToPlay
};
alreadyUsed = true;
return(ret);
}
static void ScheduledAudioFileRegionCallback (IntPtr userData, ref ScheduledAudioFileRegion fileRegion, AudioUnitStatus status)
{
if (userData == IntPtr.Zero)
return;
var handle = GCHandle.FromIntPtr (userData);
var inst = (AUScheduledAudioFileRegion) handle.Target;
inst?.completionHandler (inst, status);
}
static void ScheduledAudioFileRegionCallback(IntPtr userData, ref ScheduledAudioFileRegion fileRegion, AudioUnitStatus status)
{
if (userData == IntPtr.Zero)
{
return;
}
var handle = GCHandle.FromIntPtr(userData);
var inst = (AUScheduledAudioFileRegion)handle.Target;
inst?.completionHandler(inst, status);
}
internal ScheduledAudioFileRegion GetAudioFileRegion ()
{
if (alreadyUsed)
throw new InvalidOperationException ("You should not call SetScheduledFileRegion with a previously set region instance");
IntPtr ptr = IntPtr.Zero;
if (completionHandler != null) {
handle = GCHandle.Alloc (this);
ptr = GCHandle.ToIntPtr (handle);
}
var ret = new ScheduledAudioFileRegion {
TimeStamp = TimeStamp,
CompletionHandlerUserData = ptr,
CompletionHandler = ptr != IntPtr.Zero ? static_ScheduledAudioFileRegionCompletionHandler : null,
AudioFile = AudioFile.Handle,
LoopCount = LoopCount,
StartFrame = StartFrame,
FramesToPlay = FramesToPlay
};
alreadyUsed = true;
return ret;
}