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164 lines
5.5 KiB
164 lines
5.5 KiB
/************************************************************************************
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Filename : ONSPAmbisonicsNative.cs
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Content : Native interface into the Oculus Ambisonics
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Copyright : Copyright (c) Facebook Technologies, LLC and its affiliates. All rights reserved.
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Licensed under the Oculus SDK Version 3.5 (the "License");
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you may not use the Oculus SDK except in compliance with the License,
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which is provided at the time of installation or download, or which
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otherwise accompanies this software in either electronic or hard copy form.
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You may obtain a copy of the License at
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https://developer.oculus.com/licenses/sdk-3.5/
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Unless required by applicable law or agreed to in writing, the Oculus SDK
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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************************************************************************************/
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using UnityEngine;
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using System.Collections;
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using System.Runtime.InteropServices;
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public class ONSPAmbisonicsNative : MonoBehaviour
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{
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#if !UNITY_5
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static int numFOAChannels = 4; // we are only dealing with 1st order Ambisonics at this time
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static int paramVSpeakerMode = 6; // set speaker mode (OculusAmbi or VSpeaker)
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static int paramAmbiStat = 7; // use this to return internal Ambisonic status
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// Staus codes that may return from Ambisonic engine
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public enum ovrAmbisonicsNativeStatus
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{
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Uninitialized = -1, // Ambisonic stream not initialized (inital status)
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NotEnabled, // Ambisonic has not been enabled on clip
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Success, // Stream initialized and playing
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StreamError, // Something wrong with input stream (not a 4-channel AmbiX format stream?)
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ProcessError, // Handling of stream error
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MaxStatValue
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};
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// current status
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ovrAmbisonicsNativeStatus currentStatus = ovrAmbisonicsNativeStatus.Uninitialized;
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// true to use Virtual Speaker output. Otherwise use OculusAmbi
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[SerializeField]
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private bool useVirtualSpeakers = false;
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public bool UseVirtualSpeakers
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{
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get
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{
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return useVirtualSpeakers;
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}
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set
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{
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useVirtualSpeakers = value;
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}
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}
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#endif
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/// <summary>
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/// OnEnable this instance.
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/// </summary>
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void OnEnable()
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{
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// Unity 4 is deprecated; UNITY_5 still valid with plug-in
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#if UNITY_5
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Debug.Log("Ambisonic ERROR: Ambisonic support in Unity 2017 or higher");
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#else
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AudioSource source = GetComponent<AudioSource>();
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currentStatus = ovrAmbisonicsNativeStatus.Uninitialized;
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if (source == null)
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{
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Debug.Log("Ambisonic ERROR: AudioSource does not exist.");
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}
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else
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{
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if(source.spatialize == true)
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{
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Debug.Log("Ambisonic WARNING: Turning spatialize field off for Ambisonic sources.");
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source.spatialize = false;
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}
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if (source.clip == null)
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{
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Debug.Log("Ambisonic ERROR: AudioSource does not contain an audio clip.");
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}
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else
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{
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if(source.clip.channels != numFOAChannels)
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{
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Debug.Log("Ambisonic ERROR: AudioSource clip does not have correct number of channels.");
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}
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}
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}
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#endif
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}
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// Unity 4 is deprecated; UNITY_5 still valid with plug-in
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#if !UNITY_5
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/// <summary>
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/// Update this instance.
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/// </summary>
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void Update()
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{
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AudioSource source = GetComponent<AudioSource>();
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if (source == null)
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{
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// We already caught the error in Awake so bail
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return;
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}
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// Set speaker mode
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if(useVirtualSpeakers == true)
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source.SetAmbisonicDecoderFloat(paramVSpeakerMode, 1.0f); // VSpeakerMode
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else
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source.SetAmbisonicDecoderFloat(paramVSpeakerMode, 0.0f); // OclusAmbi
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float statusF = 0.0f;
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// PGG 5/25/2017 There is a bug in the 2017.2 beta that does not
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// allow for ambisonic params to be passed through to native
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// from C# Get latest editor from Unity when available
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source.GetAmbisonicDecoderFloat(paramAmbiStat, out statusF);
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ovrAmbisonicsNativeStatus status = (ovrAmbisonicsNativeStatus)statusF;
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// TODO: Add native result/error codes
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if (status != currentStatus)
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{
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switch(status)
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{
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case (ovrAmbisonicsNativeStatus.NotEnabled):
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Debug.Log("Ambisonic Native: Ambisonic not enabled on clip. Check clip field and turn it on");
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break;
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case (ovrAmbisonicsNativeStatus.Uninitialized):
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Debug.Log("Ambisonic Native: Stream uninitialized");
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break;
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case (ovrAmbisonicsNativeStatus.Success):
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Debug.Log("Ambisonic Native: Stream successfully initialized and playing/playable");
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break;
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case (ovrAmbisonicsNativeStatus.StreamError):
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Debug.Log("Ambisonic Native WARNING: Stream error (bad input format?)");
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break;
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case (ovrAmbisonicsNativeStatus.ProcessError):
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Debug.Log("Ambisonic Native WARNING: Stream process error (check default speaker setup)");
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break;
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default:
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break;
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}
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}
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currentStatus = status;
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}
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#endif
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}
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