1 /* 2 * Copyright 2016 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.mediaframeworktest.helpers; 18 19 import android.content.Context; 20 import android.hardware.Camera; 21 import android.hardware.camera2.CameraCharacteristics; 22 import android.hardware.camera2.CameraManager; 23 24 import java.util.Comparator; 25 26 /** 27 * Utility class containing helper functions for the Camera framework tests. 28 */ 29 /** 30 * (non-Javadoc) 31 * @see android.hardware.cts.helpers.CameraUtils 32 */ 33 public class CameraUtils { 34 35 /** 36 * Returns {@code true} if this device only supports {@code LEGACY} mode operation in the 37 * Camera2 API for the given camera ID. 38 * 39 * @param context {@link Context} to access the {@link CameraManager} in. 40 * @param cameraId the ID of the camera device to check. 41 * @return {@code true} if this device only supports {@code LEGACY} mode. 42 */ isLegacyHAL(Context context, int cameraId)43 public static boolean isLegacyHAL(Context context, int cameraId) throws Exception { 44 CameraManager manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE); 45 CameraCharacteristics characteristics = 46 manager.getCameraCharacteristics(Integer.toString(cameraId)); 47 48 return characteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL) == 49 CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY; 50 } 51 52 /** 53 * Shared size comparison method used by size comparators. 54 * 55 * <p>Compares the number of pixels it covers.If two the areas of two sizes are same, compare 56 * the widths.</p> 57 */ compareSizes(int widthA, int heightA, int widthB, int heightB)58 public static int compareSizes(int widthA, int heightA, int widthB, int heightB) { 59 long left = widthA * (long) heightA; 60 long right = widthB * (long) heightB; 61 if (left == right) { 62 left = widthA; 63 right = widthB; 64 } 65 return (left < right) ? -1 : (left > right ? 1 : 0); 66 } 67 68 /** 69 * Size comparator that compares the number of pixels it covers. 70 * 71 * <p>If two the areas of two sizes are same, compare the widths.</p> 72 */ 73 public static class LegacySizeComparator implements Comparator<Camera.Size> { 74 @Override compare(Camera.Size lhs, Camera.Size rhs)75 public int compare(Camera.Size lhs, Camera.Size rhs) { 76 return compareSizes(lhs.width, lhs.height, rhs.width, rhs.height); 77 } 78 } 79 80 } 81