OLD | NEW |
1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_ARRAY_ | 11 #ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_ARRAY_ |
12 #define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_ARRAY_ | 12 #define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_ARRAY_ |
13 | 13 |
14 #include "webrtc/base/checks.h" | 14 #include "webrtc/base/checks.h" |
15 #include "webrtc/system_wrappers/interface/aligned_malloc.h" | 15 #include "webrtc/system_wrappers/interface/aligned_malloc.h" |
16 | 16 |
17 namespace webrtc { | 17 namespace webrtc { |
18 | 18 |
19 // Wrapper class for aligned arrays. Every row (and the first dimension) are | 19 // Wrapper class for aligned arrays. Every row (and the first dimension) are |
20 // aligned to the given byte alignment. | 20 // aligned to the given byte alignment. |
21 template<typename T> class AlignedArray { | 21 template<typename T> class AlignedArray { |
22 public: | 22 public: |
23 AlignedArray(int rows, size_t cols, int alignment) | 23 AlignedArray(int rows, size_t cols, int alignment) |
24 : rows_(rows), | 24 : rows_(rows), |
25 cols_(cols), | 25 cols_(cols), |
26 alignment_(alignment) { | 26 alignment_(alignment) { |
27 CHECK_GT(alignment_, 0); | 27 RTC_CHECK_GT(alignment_, 0); |
28 head_row_ = static_cast<T**>(AlignedMalloc(rows_ * sizeof(*head_row_), | 28 head_row_ = static_cast<T**>(AlignedMalloc(rows_ * sizeof(*head_row_), |
29 alignment_)); | 29 alignment_)); |
30 for (int i = 0; i < rows_; ++i) { | 30 for (int i = 0; i < rows_; ++i) { |
31 head_row_[i] = static_cast<T*>(AlignedMalloc(cols_ * sizeof(**head_row_), | 31 head_row_[i] = static_cast<T*>(AlignedMalloc(cols_ * sizeof(**head_row_), |
32 alignment_)); | 32 alignment_)); |
33 } | 33 } |
34 } | 34 } |
35 | 35 |
36 ~AlignedArray() { | 36 ~AlignedArray() { |
37 for (int i = 0; i < rows_; ++i) { | 37 for (int i = 0; i < rows_; ++i) { |
38 AlignedFree(head_row_[i]); | 38 AlignedFree(head_row_[i]); |
39 } | 39 } |
40 AlignedFree(head_row_); | 40 AlignedFree(head_row_); |
41 } | 41 } |
42 | 42 |
43 T* const* Array() { | 43 T* const* Array() { |
44 return head_row_; | 44 return head_row_; |
45 } | 45 } |
46 | 46 |
47 const T* const* Array() const { | 47 const T* const* Array() const { |
48 return head_row_; | 48 return head_row_; |
49 } | 49 } |
50 | 50 |
51 T* Row(int row) { | 51 T* Row(int row) { |
52 CHECK_LE(row, rows_); | 52 RTC_CHECK_LE(row, rows_); |
53 return head_row_[row]; | 53 return head_row_[row]; |
54 } | 54 } |
55 | 55 |
56 const T* Row(int row) const { | 56 const T* Row(int row) const { |
57 CHECK_LE(row, rows_); | 57 RTC_CHECK_LE(row, rows_); |
58 return head_row_[row]; | 58 return head_row_[row]; |
59 } | 59 } |
60 | 60 |
61 T& At(int row, size_t col) { | 61 T& At(int row, size_t col) { |
62 CHECK_LE(col, cols_); | 62 RTC_CHECK_LE(col, cols_); |
63 return Row(row)[col]; | 63 return Row(row)[col]; |
64 } | 64 } |
65 | 65 |
66 const T& At(int row, size_t col) const { | 66 const T& At(int row, size_t col) const { |
67 CHECK_LE(col, cols_); | 67 RTC_CHECK_LE(col, cols_); |
68 return Row(row)[col]; | 68 return Row(row)[col]; |
69 } | 69 } |
70 | 70 |
71 int rows() const { | 71 int rows() const { |
72 return rows_; | 72 return rows_; |
73 } | 73 } |
74 | 74 |
75 size_t cols() const { | 75 size_t cols() const { |
76 return cols_; | 76 return cols_; |
77 } | 77 } |
78 | 78 |
79 private: | 79 private: |
80 int rows_; | 80 int rows_; |
81 size_t cols_; | 81 size_t cols_; |
82 int alignment_; | 82 int alignment_; |
83 T** head_row_; | 83 T** head_row_; |
84 }; | 84 }; |
85 | 85 |
86 } // namespace webrtc | 86 } // namespace webrtc |
87 | 87 |
88 #endif // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_ARRAY_ | 88 #endif // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_ARRAY_ |
OLD | NEW |