126 lines
4.3 KiB
Java
126 lines
4.3 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.hardware.camera2.impl;
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import android.os.Binder;
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import android.hardware.camera2.CameraCaptureSession;
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import android.hardware.camera2.CameraDevice;
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import android.hardware.camera2.CaptureFailure;
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import android.hardware.camera2.CaptureRequest;
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import android.hardware.camera2.CaptureResult;
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import android.hardware.camera2.TotalCaptureResult;
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import android.view.Surface;
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import java.util.concurrent.Executor;
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import static com.android.internal.util.Preconditions.*;
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/**
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* Proxy out invocations to the camera2 API callbacks into a {@link Dispatchable}.
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*
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* <p>Since abstract classes do not support Java's dynamic {@code Proxy}, we have to
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* to use our own proxy mechanism.</p>
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*/
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public class CallbackProxies {
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public static class SessionStateCallbackProxy
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extends CameraCaptureSession.StateCallback {
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private final Executor mExecutor;
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private final CameraCaptureSession.StateCallback mCallback;
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public SessionStateCallbackProxy(Executor executor,
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CameraCaptureSession.StateCallback callback) {
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mExecutor = checkNotNull(executor, "executor must not be null");
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mCallback = checkNotNull(callback, "callback must not be null");
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}
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@Override
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public void onConfigured(CameraCaptureSession session) {
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final long ident = Binder.clearCallingIdentity();
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try {
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mExecutor.execute(() -> mCallback.onConfigured(session));
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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@Override
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public void onConfigureFailed(CameraCaptureSession session) {
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final long ident = Binder.clearCallingIdentity();
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try {
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mExecutor.execute(() -> mCallback.onConfigureFailed(session));
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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@Override
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public void onReady(CameraCaptureSession session) {
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final long ident = Binder.clearCallingIdentity();
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try {
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mExecutor.execute(() -> mCallback.onReady(session));
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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@Override
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public void onActive(CameraCaptureSession session) {
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final long ident = Binder.clearCallingIdentity();
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try {
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mExecutor.execute(() -> mCallback.onActive(session));
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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@Override
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public void onCaptureQueueEmpty(CameraCaptureSession session) {
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final long ident = Binder.clearCallingIdentity();
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try {
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mExecutor.execute(() -> mCallback.onCaptureQueueEmpty(session));
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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@Override
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public void onClosed(CameraCaptureSession session) {
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final long ident = Binder.clearCallingIdentity();
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try {
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mExecutor.execute(() -> mCallback.onClosed(session));
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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@Override
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public void onSurfacePrepared(CameraCaptureSession session, Surface surface) {
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final long ident = Binder.clearCallingIdentity();
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try {
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mExecutor.execute(() -> mCallback.onSurfacePrepared(session, surface));
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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}
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private CallbackProxies() {
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throw new AssertionError();
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}
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}
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