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      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.camera2proxy;
     18 
     19 import android.hardware.camera2.CameraAccessException;
     20 import android.hardware.camera2.CameraCaptureSession;
     21 import android.hardware.camera2.CaptureFailure;
     22 import android.hardware.camera2.CaptureRequest;
     23 import android.hardware.camera2.CaptureResult;
     24 import android.hardware.camera2.TotalCaptureResult;
     25 import android.os.Handler;
     26 
     27 import java.util.List;
     28 
     29 /**
     30  * A CameraCaptureSessionProxy backed by an
     31  * {@link android.hardware.camera2.CameraCaptureSession}.
     32  */
     33 public class AndroidCameraCaptureSessionProxy implements CameraCaptureSessionProxy {
     34     private class AndroidCaptureCallback extends CameraCaptureSession.CaptureCallback {
     35         private final CaptureCallback mCallback;
     36 
     37         private AndroidCaptureCallback(CaptureCallback callback) {
     38             mCallback = callback;
     39         }
     40 
     41         @Override
     42         public void onCaptureStarted(CameraCaptureSession session, CaptureRequest request,
     43                 long timestamp, long frameNumber) {
     44             mCallback.onCaptureStarted(AndroidCameraCaptureSessionProxy.this, request, timestamp,
     45                     frameNumber);
     46         }
     47 
     48         @Override
     49         public void onCaptureProgressed(CameraCaptureSession session, CaptureRequest request,
     50                 CaptureResult partialResult) {
     51             mCallback.onCaptureProgressed(AndroidCameraCaptureSessionProxy.this, request,
     52                     partialResult);
     53         }
     54 
     55         @Override
     56         public void onCaptureCompleted(CameraCaptureSession session, CaptureRequest request,
     57                 TotalCaptureResult result) {
     58             mCallback.onCaptureCompleted(AndroidCameraCaptureSessionProxy.this, request, result);
     59         }
     60 
     61         @Override
     62         public void onCaptureFailed(CameraCaptureSession session, CaptureRequest request,
     63                 CaptureFailure failure) {
     64             mCallback.onCaptureFailed(AndroidCameraCaptureSessionProxy.this, request, failure);
     65         }
     66 
     67         @Override
     68         public void onCaptureSequenceCompleted(CameraCaptureSession session, int sequenceId,
     69                 long frameNumber) {
     70             mCallback.onCaptureSequenceCompleted(AndroidCameraCaptureSessionProxy.this,
     71                     sequenceId, frameNumber);
     72         }
     73 
     74         @Override
     75         public void onCaptureSequenceAborted(CameraCaptureSession session, int sequenceId) {
     76             mCallback.onCaptureSequenceAborted(AndroidCameraCaptureSessionProxy.this, sequenceId);
     77         }
     78     }
     79 
     80     private final CameraCaptureSession mSession;
     81 
     82     public AndroidCameraCaptureSessionProxy(CameraCaptureSession session) {
     83         mSession = session;
     84     }
     85 
     86     @Override
     87     public void abortCaptures() throws CameraAccessException, CameraCaptureSessionClosedException {
     88         try {
     89             mSession.abortCaptures();
     90         } catch (IllegalStateException e) {
     91             throw new CameraCaptureSessionClosedException(e);
     92         }
     93     }
     94 
     95     @Override
     96     public int capture(CaptureRequest request, CaptureCallback listener, Handler handler)
     97             throws CameraAccessException, CameraCaptureSessionClosedException {
     98         try {
     99             return mSession.capture(request, new AndroidCaptureCallback(listener), handler);
    100         } catch (IllegalStateException e) {
    101             throw new CameraCaptureSessionClosedException(e);
    102         }
    103     }
    104 
    105     @Override
    106     public int captureBurst(List<CaptureRequest> requests, CaptureCallback listener, Handler handler)
    107             throws CameraAccessException, CameraCaptureSessionClosedException {
    108         try {
    109             return mSession.captureBurst(requests, new AndroidCaptureCallback(listener), handler);
    110         } catch (IllegalStateException e) {
    111             throw new CameraCaptureSessionClosedException(e);
    112         }
    113     }
    114 
    115     @Override
    116     public void close() {
    117         mSession.close();
    118     }
    119 
    120     @Override
    121     public CameraDeviceProxy getDevice() {
    122         return new AndroidCameraDeviceProxy(mSession.getDevice());
    123     }
    124 
    125     @Override
    126     public int setRepeatingBurst(List<CaptureRequest> requests, CaptureCallback listener,
    127             Handler handler) throws CameraAccessException, CameraCaptureSessionClosedException {
    128         try {
    129             return mSession.setRepeatingBurst(requests, new AndroidCaptureCallback(listener), handler);
    130         } catch (IllegalStateException e) {
    131             throw new CameraCaptureSessionClosedException(e);
    132         }
    133     }
    134 
    135     @Override
    136     public int setRepeatingRequest(CaptureRequest request, CaptureCallback listener, Handler handler)
    137             throws CameraAccessException, CameraCaptureSessionClosedException {
    138         try {
    139             return mSession.setRepeatingRequest(request, new AndroidCaptureCallback(listener),
    140                     handler);
    141         } catch (IllegalStateException e) {
    142             throw new CameraCaptureSessionClosedException(e);
    143         }
    144     }
    145 
    146     @Override
    147     public void stopRepeating() throws CameraAccessException, CameraCaptureSessionClosedException {
    148         try {
    149             mSession.stopRepeating();
    150         } catch (IllegalStateException e) {
    151             throw new CameraCaptureSessionClosedException(e);
    152         }
    153     }
    154 }
    155