Home | History | Annotate | Download | only in imagedistributor
      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.sharedimagereader.imagedistributor;
     18 
     19 import com.android.camera.async.RefCountBase;
     20 import com.android.camera.one.v2.camera2proxy.ForwardingImageProxy;
     21 import com.android.camera.one.v2.camera2proxy.ImageProxy;
     22 
     23 import javax.annotation.concurrent.ThreadSafe;
     24 
     25 /**
     26  * Wraps ImageProxy with reference counting, starting with a fixed number of
     27  * references.
     28  */
     29 @ThreadSafe
     30 class RefCountedImageProxy extends ForwardingImageProxy {
     31     private final RefCountBase<ImageProxy> mRefCount;
     32 
     33     /**
     34      * @param image The image to wrap
     35      * @param refCount The initial reference count.
     36      */
     37     public RefCountedImageProxy(ImageProxy image, int refCount) {
     38         super(image);
     39         mRefCount = new RefCountBase<ImageProxy>(image, refCount);
     40     }
     41 
     42     @Override
     43     public void close() {
     44         mRefCount.close();
     45     }
     46 }
     47