| /* |
| * Copyright 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. |
| */ |
| |
| package android.hardware.cts.helpers; |
| |
| import android.content.Context; |
| import android.hardware.Camera; |
| import android.hardware.camera2.CameraCharacteristics; |
| import android.hardware.camera2.CameraManager; |
| |
| import java.util.Comparator; |
| |
| /** |
| * Utility class containing helper functions for the Camera CTS tests. |
| */ |
| public class CameraUtils { |
| |
| /** |
| * Returns {@code true} if this device only supports {@code LEGACY} mode operation in the |
| * Camera2 API for the given camera ID. |
| * |
| * @param context {@link Context} to access the {@link CameraManager} in. |
| * @param cameraId the ID of the camera device to check. |
| * @return {@code true} if this device only supports {@code LEGACY} mode. |
| */ |
| public static boolean isLegacyHAL(Context context, int cameraId) throws Exception { |
| CameraManager manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE); |
| CameraCharacteristics characteristics = |
| manager.getCameraCharacteristics(Integer.toString(cameraId)); |
| |
| return characteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL) == |
| CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY; |
| } |
| |
| /** |
| * Shared size comparison method used by size comparators. |
| * |
| * <p>Compares the number of pixels it covers.If two the areas of two sizes are same, compare |
| * the widths.</p> |
| */ |
| public static int compareSizes(int widthA, int heightA, int widthB, int heightB) { |
| long left = widthA * (long) heightA; |
| long right = widthB * (long) heightB; |
| if (left == right) { |
| left = widthA; |
| right = widthB; |
| } |
| return (left < right) ? -1 : (left > right ? 1 : 0); |
| } |
| |
| /** |
| * Size comparator that compares the number of pixels it covers. |
| * |
| * <p>If two the areas of two sizes are same, compare the widths.</p> |
| */ |
| public static class LegacySizeComparator implements Comparator<Camera.Size> { |
| @Override |
| public int compare(Camera.Size lhs, Camera.Size rhs) { |
| return compareSizes(lhs.width, lhs.height, rhs.width, rhs.height); |
| } |
| } |
| |
| } |