| /* |
| * 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 android.hardware.camera2.impl; |
| |
| import android.os.Binder; |
| import android.hardware.camera2.CameraCaptureSession; |
| import android.hardware.camera2.CameraDevice; |
| import android.hardware.camera2.CaptureFailure; |
| import android.hardware.camera2.CaptureRequest; |
| import android.hardware.camera2.CaptureResult; |
| import android.hardware.camera2.TotalCaptureResult; |
| import android.view.Surface; |
| |
| import java.util.concurrent.Executor; |
| |
| import static com.android.internal.util.Preconditions.*; |
| |
| /** |
| * Proxy out invocations to the camera2 API callbacks into a {@link Dispatchable}. |
| * |
| * <p>Since abstract classes do not support Java's dynamic {@code Proxy}, we have to |
| * to use our own proxy mechanism.</p> |
| */ |
| public class CallbackProxies { |
| public static class SessionStateCallbackProxy |
| extends CameraCaptureSession.StateCallback { |
| private final Executor mExecutor; |
| private final CameraCaptureSession.StateCallback mCallback; |
| |
| public SessionStateCallbackProxy(Executor executor, |
| CameraCaptureSession.StateCallback callback) { |
| mExecutor = checkNotNull(executor, "executor must not be null"); |
| mCallback = checkNotNull(callback, "callback must not be null"); |
| } |
| |
| @Override |
| public void onConfigured(CameraCaptureSession session) { |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mExecutor.execute(() -> mCallback.onConfigured(session)); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| |
| @Override |
| public void onConfigureFailed(CameraCaptureSession session) { |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mExecutor.execute(() -> mCallback.onConfigureFailed(session)); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void onReady(CameraCaptureSession session) { |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mExecutor.execute(() -> mCallback.onReady(session)); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void onActive(CameraCaptureSession session) { |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mExecutor.execute(() -> mCallback.onActive(session)); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void onCaptureQueueEmpty(CameraCaptureSession session) { |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mExecutor.execute(() -> mCallback.onCaptureQueueEmpty(session)); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void onClosed(CameraCaptureSession session) { |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mExecutor.execute(() -> mCallback.onClosed(session)); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void onSurfacePrepared(CameraCaptureSession session, Surface surface) { |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mExecutor.execute(() -> mCallback.onSurfacePrepared(session, surface)); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| } |
| |
| private CallbackProxies() { |
| throw new AssertionError(); |
| } |
| } |