Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.graphics.Rect;
import android.hardware.camera2.CameraCharacteristics;

public class Main {
    /**
     * Calculates sensor crop region for a zoom level (zoom >= 1.0).
     *
     * @return Crop region.
     */
    public static Rect cropRegionForZoom(CameraCharacteristics characteristics, float zoom) {
        Rect sensor = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);
        int xCenter = sensor.width() / 2;
        int yCenter = sensor.height() / 2;
        int xDelta = (int) (0.5f * sensor.width() / zoom);
        int yDelta = (int) (0.5f * sensor.height() / zoom);
        return new Rect(xCenter - xDelta, yCenter - yDelta, xCenter + xDelta, yCenter + yDelta);
    }
}