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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
// Original code is licensed as follows:
/*
* Copyright 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "fxbarcode/common/BC_CommonByteArray.h"
#include <algorithm>
#include "core/fxcrt/fx_memory.h"
CBC_CommonByteArray::CBC_CommonByteArray() {
m_bytes = nullptr;
m_size = 0;
m_index = 0;
}
CBC_CommonByteArray::CBC_CommonByteArray(int32_t size) {
m_size = size;
m_bytes = FX_Alloc(uint8_t, size);
memset(m_bytes, 0, size);
m_index = 0;
}
CBC_CommonByteArray::CBC_CommonByteArray(uint8_t* byteArray, int32_t size) {
m_size = size;
m_bytes = FX_Alloc(uint8_t, size);
memcpy(m_bytes, byteArray, size);
m_index = size;
}
CBC_CommonByteArray::~CBC_CommonByteArray() {
FX_Free(m_bytes);
}
int32_t CBC_CommonByteArray::At(int32_t index) const {
return m_bytes[index] & 0xff;
}
void CBC_CommonByteArray::Set(int32_t index, int32_t value) {
m_bytes[index] = (uint8_t)value;
}
int32_t CBC_CommonByteArray::Size() const {
return m_size;
}
bool CBC_CommonByteArray::IsEmpty() const {
return m_size == 0;
}
void CBC_CommonByteArray::AppendByte(int32_t value) {
if (m_size == 0 || m_index >= m_size) {
int32_t newSize = std::max(32, m_size << 1);
Reserve(newSize);
}
m_bytes[m_index] = (uint8_t)value;
m_index++;
}
void CBC_CommonByteArray::Reserve(int32_t capacity) {
if (!m_bytes || m_size < capacity) {
uint8_t* newArray = FX_Alloc(uint8_t, capacity);
if (m_bytes) {
memcpy(newArray, m_bytes, m_size);
memset(newArray + m_size, 0, capacity - m_size);
} else {
memset(newArray, 0, capacity);
}
FX_Free(m_bytes);
m_bytes = newArray;
m_size = capacity;
}
}
void CBC_CommonByteArray::Set(const uint8_t* source,
int32_t offset,
int32_t count) {
FX_Free(m_bytes);
m_bytes = FX_Alloc(uint8_t, count);
m_size = count;
memcpy(m_bytes, source + offset, count);
m_index = count;
}
void CBC_CommonByteArray::Set(std::vector<uint8_t>* source,
int32_t offset,
int32_t count) {
FX_Free(m_bytes);
m_bytes = FX_Alloc(uint8_t, count);
m_size = count;
int32_t i;
for (i = 0; i < count; i++) {
m_bytes[i] = source->operator[](i + offset);
}
m_index = m_size;
}
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