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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.CameraAccessException;
import com.android.camera.app.OrientationManager;
import com.android.camera.async.MainThread;
import com.android.camera.async.Updatable;
import com.android.camera.one.OneCamera;
import com.android.camera.one.v2.camera2proxy.CameraCaptureSessionClosedException;
import com.android.camera.one.v2.commands.CameraCommand;
import com.android.camera.one.v2.commands.CameraCommandExecutor;
import com.android.camera.one.v2.core.ResourceAcquisitionFailedException;
import com.android.camera.one.v2.imagesaver.ImageSaver;
import com.android.camera.session.CaptureSession;
import com.google.common.base.Objects;
class PictureTakerImpl implements PictureTaker {
private final MainThread mMainExecutor;
private final CameraCommandExecutor mCameraCommandExecutor;
private final ImageSaver.Builder mImageSaverBuilder;
private final ImageCaptureCommand mCommand;
public PictureTakerImpl(MainThread mainExecutor, CameraCommandExecutor cameraCommandExecutor,
ImageSaver.Builder imageSaverBuilder, ImageCaptureCommand command) {
mMainExecutor = mainExecutor;
mCameraCommandExecutor = cameraCommandExecutor;
mImageSaverBuilder = imageSaverBuilder;
mCommand = command;
}
private final class PictureTakerCommand implements CameraCommand {
private final Updatable<Void> mImageExposureCallback;
private final ImageSaver mImageSaver;
private final CaptureSession mSession;
private PictureTakerCommand(Updatable<Void> imageExposureCallback,
ImageSaver imageSaver,
CaptureSession session) {
mImageExposureCallback = imageExposureCallback;
mImageSaver = imageSaver;
mSession = session;
}
@Override
public void run() throws InterruptedException, CameraAccessException,
CameraCaptureSessionClosedException, ResourceAcquisitionFailedException {
try {
mCommand.run(mImageExposureCallback, mImageSaver);
} catch (Exception e) {
mSession.cancel();
throw e;
}
}
@Override
public String toString() {
return Objects.toStringHelper(this)
.add("command", mCommand)
.toString();
}
}
@Override
public void takePicture(OneCamera.PhotoCaptureParameters params, final CaptureSession session) {
OneCamera.PictureCallback pictureCallback = params.callback;
// Wrap the pictureCallback with a thread-safe adapter which guarantees
// that they are always invoked on the main thread.
PictureCallbackAdapter pictureCallbackAdapter =
new PictureCallbackAdapter(pictureCallback, mMainExecutor);
final Updatable<Void> imageExposureCallback =
pictureCallbackAdapter.provideQuickExposeUpdatable();
final ImageSaver imageSaver = mImageSaverBuilder.build(
params.saverCallback,
OrientationManager.DeviceOrientation.from(params.orientation),
session);
mCameraCommandExecutor.execute(new PictureTakerCommand(
imageExposureCallback, imageSaver, session));
}
}