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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 "xfa/fxbarcode/datamatrix/BC_DataMatrixDataBlock.h"
#include <memory>
#include "xfa/fxbarcode/datamatrix/BC_DataMatrixVersion.h"
#include "xfa/fxbarcode/utils.h"
CBC_DataMatrixDataBlock::~CBC_DataMatrixDataBlock() {}
CBC_DataMatrixDataBlock::CBC_DataMatrixDataBlock(int32_t numDataCodewords,
CFX_ByteArray* codewords) {
m_codewords.Copy(*codewords);
m_numDataCodewords = numDataCodewords;
}
CFX_ArrayTemplate<CBC_DataMatrixDataBlock*>*
CBC_DataMatrixDataBlock::GetDataBlocks(CFX_ByteArray* rawCodewords,
CBC_DataMatrixVersion* version,
int32_t& e) {
ECBlocks* ecBlocks = version->GetECBlocks();
int32_t totalBlocks = 0;
const CFX_ArrayTemplate<ECB*>& ecBlockArray = ecBlocks->GetECBlocks();
for (int32_t i = 0; i < ecBlockArray.GetSize(); i++) {
totalBlocks += ecBlockArray[i]->GetCount();
}
std::unique_ptr<CFX_ArrayTemplate<CBC_DataMatrixDataBlock*>> result(
new CFX_ArrayTemplate<CBC_DataMatrixDataBlock*>());
result->SetSize(totalBlocks);
int32_t numResultBlocks = 0;
for (int32_t j = 0; j < ecBlockArray.GetSize(); j++) {
for (int32_t i = 0; i < ecBlockArray[j]->GetCount(); i++) {
int32_t numDataCodewords = ecBlockArray[j]->GetDataCodewords();
int32_t numBlockCodewords = ecBlocks->GetECCodewords() + numDataCodewords;
CFX_ByteArray codewords;
codewords.SetSize(numBlockCodewords);
(*result)[numResultBlocks++] =
new CBC_DataMatrixDataBlock(numDataCodewords, &codewords);
codewords.SetSize(0);
}
}
int32_t longerBlocksNumDataCodewords =
(*result)[0]->GetCodewords()->GetSize() - ecBlocks->GetECCodewords();
int32_t rawCodewordsOffset = 0;
for (int32_t i = 0; i < longerBlocksNumDataCodewords - 1; i++) {
for (int32_t j = 0; j < numResultBlocks; j++) {
if (rawCodewordsOffset < rawCodewords->GetSize()) {
(*result)[j]->GetCodewords()->operator[](i) =
(*rawCodewords)[rawCodewordsOffset++];
}
}
}
const bool specialVersion = version->GetVersionNumber() == 24;
int32_t numLongerBlocks = specialVersion ? 8 : numResultBlocks;
for (int32_t j = 0; j < numLongerBlocks; j++) {
if (rawCodewordsOffset < rawCodewords->GetSize()) {
(*result)[j]->GetCodewords()->operator[](longerBlocksNumDataCodewords -
1) =
(*rawCodewords)[rawCodewordsOffset++];
}
}
for (int32_t i = longerBlocksNumDataCodewords;
i < (*result)[0]->GetCodewords()->GetSize(); i++) {
for (int32_t j = 0; j < numResultBlocks; j++) {
int32_t iOffset = specialVersion && j > 7 ? i - 1 : i;
if (rawCodewordsOffset < rawCodewords->GetSize()) {
(*result)[j]->GetCodewords()->operator[](iOffset) =
(*rawCodewords)[rawCodewordsOffset++];
}
}
}
if (rawCodewordsOffset != rawCodewords->GetSize()) {
e = BCExceptionIllegalArgument;
return nullptr;
}
return result.release();
}
int32_t CBC_DataMatrixDataBlock::GetNumDataCodewords() {
return m_numDataCodewords;
}
CFX_ByteArray* CBC_DataMatrixDataBlock::GetCodewords() {
return &m_codewords;
}
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