Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 1 | // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | // Original code is licensed as follows: |
| 7 | /* |
| 8 | * Copyright 2007 ZXing authors |
| 9 | * |
| 10 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 11 | * you may not use this file except in compliance with the License. |
| 12 | * You may obtain a copy of the License at |
| 13 | * |
| 14 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 15 | * |
| 16 | * Unless required by applicable law or agreed to in writing, software |
| 17 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 18 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 19 | * See the License for the specific language governing permissions and |
| 20 | * limitations under the License. |
| 21 | */ |
| 22 | |
Dan Sinclair | e778668 | 2017-03-29 15:18:41 -0400 | [diff] [blame] | 23 | #include "fxbarcode/common/BC_CommonBitArray.h" |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 24 | |
| 25 | #include <utility> |
| 26 | |
Dan Sinclair | e778668 | 2017-03-29 15:18:41 -0400 | [diff] [blame] | 27 | #include "fxbarcode/utils.h" |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 28 | |
| 29 | CBC_CommonBitArray::CBC_CommonBitArray(CBC_CommonBitArray* array) { |
| 30 | m_size = array->GetSize(); |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 31 | m_bits = array->GetBits(); |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 32 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 33 | |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 34 | CBC_CommonBitArray::CBC_CommonBitArray() { |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 35 | m_bits.resize(1); |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 36 | m_size = 0; |
| 37 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 38 | |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 39 | CBC_CommonBitArray::CBC_CommonBitArray(int32_t size) { |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 40 | m_bits.resize((size + 31) >> 5); |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 41 | m_size = size; |
| 42 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 43 | |
| 44 | CBC_CommonBitArray::~CBC_CommonBitArray() {} |
| 45 | |
| 46 | size_t CBC_CommonBitArray::GetSize() { |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 47 | return m_size; |
| 48 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 49 | |
| 50 | std::vector<int32_t>& CBC_CommonBitArray::GetBits() { |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 51 | return m_bits; |
| 52 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 53 | |
| 54 | size_t CBC_CommonBitArray::GetSizeInBytes() { |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 55 | return (m_size + 7) >> 3; |
| 56 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 57 | |
| 58 | bool CBC_CommonBitArray::Get(size_t i) { |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 59 | return (m_bits[i >> 5] & (1 << (i & 0x1f))) != 0; |
| 60 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 61 | |
| 62 | void CBC_CommonBitArray::Set(size_t i) { |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 63 | m_bits[i >> 5] |= 1 << (i & 0x1F); |
| 64 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 65 | |
| 66 | void CBC_CommonBitArray::Flip(size_t i) { |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 67 | m_bits[i >> 5] ^= 1 << (i & 0x1F); |
| 68 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 69 | |
| 70 | void CBC_CommonBitArray::SetBulk(size_t i, int32_t newBits) { |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 71 | m_bits[i >> 5] = newBits; |
| 72 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 73 | |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 74 | void CBC_CommonBitArray::Clear() { |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 75 | for (auto& value : m_bits) |
| 76 | value = 0; |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 77 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 78 | |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 79 | int32_t* CBC_CommonBitArray::GetBitArray() { |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 80 | return m_bits.data(); |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 81 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 82 | |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 83 | void CBC_CommonBitArray::Reverse() { |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 84 | std::vector<int32_t> newBits(m_bits.size()); |
| 85 | for (size_t i = 0; i < m_size; i++) { |
| 86 | if (Get(m_size - i - 1)) |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 87 | newBits[i >> 5] |= 1 << (i & 0x1F); |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 88 | } |
Tom Sepez | 8b6186f | 2017-03-28 12:06:45 -0700 | [diff] [blame] | 89 | m_bits = std::move(newBits); |
Dan Sinclair | 1770c02 | 2016-03-14 14:14:16 -0400 | [diff] [blame] | 90 | } |