native_frame.cpp revision 65953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9 
1/*
2 * Copyright (C) 2011 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#include "core/native_frame.h"
18
19namespace android {
20namespace filterfw {
21
22NativeFrame::NativeFrame(int size) : data_(NULL), size_(size), capacity_(size) {
23  data_ = capacity_ == 0 ? NULL : new uint8_t[capacity_];
24}
25
26NativeFrame::~NativeFrame() {
27  delete[] data_;
28}
29
30bool NativeFrame::WriteData(const uint8_t* data, int offset, int size) {
31  if (size_ >= (offset + size)) {
32    memcpy(data_ + offset, data, size);
33    return true;
34  }
35  return false;
36}
37
38bool NativeFrame::SetData(uint8_t* data, int size) {
39  delete[] data_;
40  size_ = capacity_ = size;
41  data_ = data;
42  return true;
43}
44
45NativeFrame* NativeFrame::Clone() const {
46  NativeFrame* result = new NativeFrame(size_);
47  if (data_)
48    result->WriteData(data_, 0, size_);
49  return result;
50}
51
52bool NativeFrame::Resize(int newSize) {
53  if (newSize <= capacity_ && newSize >= 0) {
54    size_ = newSize;
55    return true;
56  }
57  return false;
58}
59
60} // namespace filterfw
61} // namespace android
62