1 /*
2  * Copyright (C) 2021 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #pragma once
17 
18 namespace android {
19 namespace media {
20 
21 /**
22  * Mode of head-tracking.
23  */
24 enum class HeadTrackingMode {
25     /** No head-tracking - screen-to-head pose is assumed to be identity. */
26     STATIC,
27     /** Head tracking enabled - world-to-screen pose is assumed to be identity. */
28     WORLD_RELATIVE,
29     /** Full screen-to-head tracking enabled. */
30     SCREEN_RELATIVE,
31 };
32 
33 }  // namespace media
34 }  // namespace android
35