| /* |
| * Copyright 2020 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 androidx.camera.extensions.impl; |
| |
| import android.hardware.camera2.CameraCharacteristics; |
| import android.util.Log; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.RequiresApi; |
| |
| import java.util.Arrays; |
| |
| /** |
| * A utility class to check the availabilities of camera characteristics. |
| */ |
| @RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java |
| final class CameraCharacteristicAvailability { |
| private static final String TAG = "CharacteristicAbility"; |
| |
| private CameraCharacteristicAvailability() { |
| } |
| |
| /** |
| * Check if the given effect id is available in the camera characteristics. |
| * |
| * @param cameraCharacteristics the camera characteristics. |
| * @param effect the effect id. |
| * @return {@code true} if the given effect id is available in the camera characteristics. |
| * {@code false} otherwise. |
| */ |
| static boolean isEffectAvailable(@NonNull CameraCharacteristics cameraCharacteristics, |
| int effect) { |
| int[] availableEffects = cameraCharacteristics.get( |
| CameraCharacteristics.CONTROL_AVAILABLE_EFFECTS); |
| if (availableEffects == null) { |
| Log.d(TAG, "No CONTROL_AVAILABLE_EFFECTS info"); |
| return false; |
| } |
| |
| for (int availableEffect : availableEffects) { |
| if (availableEffect == effect) { |
| return true; |
| } |
| } |
| Log.d(TAG, "effect: " + effect + " is not in available list " |
| + Arrays.toString(availableEffects)); |
| return false; |
| } |
| } |
