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/*
* 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.
*/
package com.android.camera.one.v2.photo;
import android.hardware.camera2.CameraDevice;
import com.android.camera.async.MainThread;
import com.android.camera.debug.Logger;
import com.android.camera.one.OneCamera;
import com.android.camera.one.v2.commands.CameraCommandExecutor;
import com.android.camera.one.v2.core.FrameServer;
import com.android.camera.one.v2.core.RequestBuilder;
import com.android.camera.one.v2.imagesaver.ImageSaver;
import com.android.camera.one.v2.sharedimagereader.ManagedImageReader;
import com.google.common.base.Supplier;
import java.util.Arrays;
public final class PictureTakerFactory {
private final PictureTakerImpl mPictureTaker;
private PictureTakerFactory(PictureTakerImpl pictureTaker) {
mPictureTaker = pictureTaker;
}
public static PictureTakerFactory create(Logger.Factory logFactory, MainThread mainExecutor,
CameraCommandExecutor commandExecutor,
ImageSaver.Builder imageSaverBuilder,
FrameServer frameServer,
RequestBuilder.Factory rootRequestBuilder,
ManagedImageReader sharedImageReader,
Supplier<OneCamera.PhotoCaptureParameters.Flash> flashMode) {
// When flash is ON, always use the ConvergedImageCaptureCommand which
// performs the AF & AE precapture sequence.
ImageCaptureCommand flashOnCommand = new ConvergedImageCaptureCommand(
sharedImageReader, frameServer, rootRequestBuilder,
CameraDevice.TEMPLATE_PREVIEW /* repeatingRequestTemplate */,
CameraDevice.TEMPLATE_STILL_CAPTURE /* stillCaptureRequestTemplate */,
Arrays.asList(rootRequestBuilder), true /* ae */, true /* af */);
// When flash is OFF, wait for AF convergence, but not AE convergence
// (which can be very slow).
ImageCaptureCommand flashOffCommand = new ConvergedImageCaptureCommand(
sharedImageReader, frameServer, rootRequestBuilder,
CameraDevice.TEMPLATE_PREVIEW /* repeatingRequestTemplate */,
CameraDevice.TEMPLATE_STILL_CAPTURE /* stillCaptureRequestTemplate */,
Arrays.asList(rootRequestBuilder), false /* ae */, true /* af */);
// When flash is AUTO, wait for AF & AE.
// TODO OPTIMIZE If the last converged-AE state indicates that flash is
// not necessary, then this could skip waiting for AE convergence.
ImageCaptureCommand flashAutoCommand = new ConvergedImageCaptureCommand(
sharedImageReader, frameServer, rootRequestBuilder,
CameraDevice.TEMPLATE_PREVIEW /* repeatingRequestTemplate */,
CameraDevice.TEMPLATE_STILL_CAPTURE /* stillCaptureRequestTemplate */,
Arrays.asList(rootRequestBuilder), true /* ae */, true /* af */);
ImageCaptureCommand flashBasedCommand = new FlashBasedPhotoCommand(logFactory, flashMode,
flashOnCommand, flashAutoCommand, flashOffCommand);
return new PictureTakerFactory(new PictureTakerImpl(mainExecutor, commandExecutor,
imageSaverBuilder, flashBasedCommand));
}
public PictureTaker providePictureTaker() {
return mPictureTaker;
}
}
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