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