1 /*
2  * Copyright (C) 2015 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.processing.memory;
18 
19 import java.nio.ByteBuffer;
20 
21 /**
22  * Resource pool for large, directly allocated byte buffers. The integer key
23  * represents the size of the bytebuffer.
24  */
25 public final class ByteBufferDirectPool extends SimpleLruResourcePool<Integer, ByteBuffer> {
ByteBufferDirectPool(int lruSize)26     public ByteBufferDirectPool(int lruSize) {
27         super(lruSize);
28     }
29 
30     @Override
create(Integer bytes)31     protected ByteBuffer create(Integer bytes) {
32         return ByteBuffer.allocateDirect(bytes);
33     }
34 
35     @Override
recycle(Integer integer, ByteBuffer byteBuffer)36     protected ByteBuffer recycle(Integer integer, ByteBuffer byteBuffer) {
37         // Reset byte buffer location and limits
38         byteBuffer.rewind();
39         byteBuffer.limit(byteBuffer.capacity());
40         return byteBuffer;
41     }
42 }
43