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 23 #include "fxbarcode/common/BC_CommonBitArray.h" 24 25 #include <utility> 26 27 #include "fxbarcode/utils.h" 28 29 CBC_CommonBitArray::CBC_CommonBitArray(CBC_CommonBitArray* array) { 30 m_size = array->GetSize(); 31 m_bits = array->GetBits(); 32 } 33 34 CBC_CommonBitArray::CBC_CommonBitArray() { 35 m_bits.resize(1); 36 m_size = 0; 37 } 38 39 CBC_CommonBitArray::CBC_CommonBitArray(int32_t size) { 40 m_bits.resize((size + 31) >> 5); 41 m_size = size; 42 } 43 44 CBC_CommonBitArray::~CBC_CommonBitArray() {} 45 46 size_t CBC_CommonBitArray::GetSize() { 47 return m_size; 48 } 49 50 std::vector<int32_t>& CBC_CommonBitArray::GetBits() { 51 return m_bits; 52 } 53 54 size_t CBC_CommonBitArray::GetSizeInBytes() { 55 return (m_size + 7) >> 3; 56 } 57 58 bool CBC_CommonBitArray::Get(size_t i) { 59 return (m_bits[i >> 5] & (1 << (i & 0x1f))) != 0; 60 } 61 62 void CBC_CommonBitArray::Set(size_t i) { 63 m_bits[i >> 5] |= 1 << (i & 0x1F); 64 } 65 66 void CBC_CommonBitArray::Flip(size_t i) { 67 m_bits[i >> 5] ^= 1 << (i & 0x1F); 68 } 69 70 void CBC_CommonBitArray::SetBulk(size_t i, int32_t newBits) { 71 m_bits[i >> 5] = newBits; 72 } 73 74 void CBC_CommonBitArray::Clear() { 75 for (auto& value : m_bits) 76 value = 0; 77 } 78 79 int32_t* CBC_CommonBitArray::GetBitArray() { 80 return m_bits.data(); 81 } 82 83 void CBC_CommonBitArray::Reverse() { 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)) 87 newBits[i >> 5] |= 1 << (i & 0x1F); 88 } 89 m_bits = std::move(newBits); 90 } 91
