1 /*
2  * Copyright (C) 2012 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 #ifndef ANDROiD_SERVERS_CAMERA_CAMERA2HEAP_H
18 #define ANDROiD_SERVERS_CAMERA_CAMERA2HEAP_H
19 
20 #include <binder/MemoryBase.h>
21 #include <binder/MemoryHeapBase.h>
22 
23 namespace android {
24 namespace camera2 {
25 
26 // Utility class for managing a set of IMemory blocks
27 class Camera2Heap : public RefBase {
28   public:
29     explicit Camera2Heap(size_t buf_size, uint_t num_buffers = 1,
30             const char *name = NULL) :
mBufSize(buf_size)31             mBufSize(buf_size),
32             mNumBufs(num_buffers) {
33         mHeap = new MemoryHeapBase(buf_size * num_buffers, 0, name);
34         mBuffers = new sp<MemoryBase>[mNumBufs];
35         for (uint_t i = 0; i < mNumBufs; i++)
36             mBuffers[i] = new MemoryBase(mHeap,
37                     i * mBufSize,
38                     mBufSize);
39     }
40 
~Camera2Heap()41     virtual ~Camera2Heap()
42     {
43         delete [] mBuffers;
44     }
45 
46     size_t mBufSize;
47     uint_t mNumBufs;
48     sp<MemoryHeapBase> mHeap;
49     sp<MemoryBase> *mBuffers;
50 };
51 
52 }; // namespace camera2
53 }; // namespace android
54 
55 #endif
56