1 /* 2 * Copyright (C) 2014 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.camera.one.v2.common; 18 19 import android.hardware.camera2.CaptureRequest; 20 21 import com.android.camera.one.OneCamera; 22 import com.google.common.base.Supplier; 23 24 /** 25 * Computes the current AE Mode to use based on the current flash state. 26 */ 27 public class FlashBasedAEMode implements Supplier<Integer> { 28 private final Supplier<OneCamera.PhotoCaptureParameters.Flash> mFlash; 29 private final Supplier<Boolean> mHdrSceneMode; 30 31 public FlashBasedAEMode( 32 Supplier<OneCamera.PhotoCaptureParameters.Flash> flash, 33 Supplier<Boolean> hdrSceneMode) { 34 mFlash = flash; 35 mHdrSceneMode = hdrSceneMode; 36 } 37 38 @Override 39 public Integer get() { 40 // In the case that hdr scene mode is on, disable flash. 41 if (mHdrSceneMode.get()) { 42 return CaptureRequest.CONTROL_AE_MODE_ON; 43 } 44 45 switch (mFlash.get()) { 46 case AUTO: 47 return CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH; 48 case ON: 49 return CaptureRequest.CONTROL_AE_MODE_ON_ALWAYS_FLASH; 50 case OFF: 51 return CaptureRequest.CONTROL_AE_MODE_ON; 52 default: 53 return CaptureRequest.CONTROL_AE_MODE_ON; 54 } 55 } 56 } 57
