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
17package com.android.camera.one.v2.autofocus;
18
19import android.graphics.Rect;
20import android.hardware.camera2.params.MeteringRectangle;
21
22import javax.annotation.ParametersAreNonnullByDefault;
23
24@ParametersAreNonnullByDefault
25final 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
35    public static MeteringParameters create() {
36        return Singleton.INSTANCE;
37    }
38
39    @Override
40    public MeteringRectangle[] getAFRegions(Rect cropRegion) {
41        return ZERO_WEIGHT_3A_REGION;
42    }
43
44    @Override
45    public MeteringRectangle[] getAERegions(Rect cropRegion) {
46        return ZERO_WEIGHT_3A_REGION;
47    }
48}
49