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1 /*
2  * Copyright (C) 2015 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 
17 package com.android.camera.one.v2.autofocus;
18 
19 import android.graphics.Rect;
20 import android.hardware.camera2.params.MeteringRectangle;
21 
22 import javax.annotation.ParametersAreNonnullByDefault;
23 
24 @ParametersAreNonnullByDefault
25 final class GlobalMeteringParameters implements MeteringParameters {
26     /** Zero weight 3A region, to reset regions per API. */
27     private static final MeteringRectangle[] ZERO_WEIGHT_3A_REGION = new MeteringRectangle[] {
28             new MeteringRectangle(0, 0, 0, 0, 0)
29     };
30 
31     private static class Singleton {
32         private static final GlobalMeteringParameters INSTANCE = new GlobalMeteringParameters();
33     }
34 
create()35     public static MeteringParameters create() {
36         return Singleton.INSTANCE;
37     }
38 
39     @Override
getAFRegions(Rect cropRegion)40     public MeteringRectangle[] getAFRegions(Rect cropRegion) {
41         return ZERO_WEIGHT_3A_REGION;
42     }
43 
44     @Override
getAERegions(Rect cropRegion)45     public MeteringRectangle[] getAERegions(Rect cropRegion) {
46         return ZERO_WEIGHT_3A_REGION;
47     }
48 }
49