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 2008 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 <algorithm>
24
25 #include "xfa/fxbarcode/common/BC_CommonByteArray.h"
26
CBC_CommonByteArray()27 CBC_CommonByteArray::CBC_CommonByteArray() {
28 m_bytes = nullptr;
29 m_size = 0;
30 m_index = 0;
31 }
CBC_CommonByteArray(int32_t size)32 CBC_CommonByteArray::CBC_CommonByteArray(int32_t size) {
33 m_size = size;
34 m_bytes = FX_Alloc(uint8_t, size);
35 FXSYS_memset(m_bytes, 0, size);
36 m_index = 0;
37 }
CBC_CommonByteArray(uint8_t * byteArray,int32_t size)38 CBC_CommonByteArray::CBC_CommonByteArray(uint8_t* byteArray, int32_t size) {
39 m_size = size;
40 m_bytes = FX_Alloc(uint8_t, size);
41 FXSYS_memcpy(m_bytes, byteArray, size);
42 m_index = size;
43 }
~CBC_CommonByteArray()44 CBC_CommonByteArray::~CBC_CommonByteArray() {
45 FX_Free(m_bytes);
46 }
At(int32_t index)47 int32_t CBC_CommonByteArray::At(int32_t index) {
48 return m_bytes[index] & 0xff;
49 }
Set(int32_t index,int32_t value)50 void CBC_CommonByteArray::Set(int32_t index, int32_t value) {
51 m_bytes[index] = (uint8_t)value;
52 }
Size()53 int32_t CBC_CommonByteArray::Size() {
54 return m_size;
55 }
IsEmpty()56 FX_BOOL CBC_CommonByteArray::IsEmpty() {
57 return m_size == 0;
58 }
AppendByte(int32_t value)59 void CBC_CommonByteArray::AppendByte(int32_t value) {
60 if (m_size == 0 || m_index >= m_size) {
61 int32_t newSize = std::max(32, m_size << 1);
62 Reserve(newSize);
63 }
64 m_bytes[m_index] = (uint8_t)value;
65 m_index++;
66 }
Reserve(int32_t capacity)67 void CBC_CommonByteArray::Reserve(int32_t capacity) {
68 if (!m_bytes || m_size < capacity) {
69 uint8_t* newArray = FX_Alloc(uint8_t, capacity);
70 if (m_bytes) {
71 FXSYS_memcpy(newArray, m_bytes, m_size);
72 FXSYS_memset(newArray + m_size, 0, capacity - m_size);
73 } else {
74 FXSYS_memset(newArray, 0, capacity);
75 }
76 FX_Free(m_bytes);
77 m_bytes = newArray;
78 m_size = capacity;
79 }
80 }
Set(uint8_t * source,int32_t offset,int32_t count)81 void CBC_CommonByteArray::Set(uint8_t* source, int32_t offset, int32_t count) {
82 FX_Free(m_bytes);
83 m_bytes = FX_Alloc(uint8_t, count);
84 m_size = count;
85 FXSYS_memcpy(m_bytes, source + offset, count);
86 m_index = count;
87 }
Set(CFX_ByteArray * source,int32_t offset,int32_t count)88 void CBC_CommonByteArray::Set(CFX_ByteArray* source,
89 int32_t offset,
90 int32_t count) {
91 FX_Free(m_bytes);
92 m_bytes = FX_Alloc(uint8_t, count);
93 m_size = count;
94 int32_t i;
95 for (i = 0; i < count; i++) {
96 m_bytes[i] = source->operator[](i + offset);
97 }
98 m_index = m_size;
99 }
100