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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 "../barcode.h"
#include "BC_DataMatrixVersion.h"
#include "BC_DataMatrixDataBlock.h"
CBC_DataMatrixDataBlock::~CBC_DataMatrixDataBlock()
{
}
CBC_DataMatrixDataBlock::CBC_DataMatrixDataBlock(FX_INT32 numDataCodewords, CFX_ByteArray *codewords)
{
m_codewords.Copy(*codewords);
m_numDataCodewords = numDataCodewords;
}
CFX_PtrArray *CBC_DataMatrixDataBlock::GetDataBlocks(CFX_ByteArray* rawCodewords, CBC_DataMatrixVersion *version, FX_INT32 &e)
{
ECBlocks *ecBlocks = version->GetECBlocks();
FX_INT32 totalBlocks = 0;
const CFX_PtrArray &ecBlockArray = ecBlocks->GetECBlocks();
FX_INT32 i;
for (i = 0; i < ecBlockArray.GetSize(); i++) {
totalBlocks += ((ECB*)ecBlockArray[i])->GetCount();
}
CBC_AutoPtr<CFX_PtrArray>result(FX_NEW CFX_PtrArray());
result->SetSize(totalBlocks);
FX_INT32 numResultBlocks = 0;
FX_INT32 j;
for (j = 0; j < ecBlockArray.GetSize(); j++) {
for (i = 0; i < ((ECB*)ecBlockArray[j])->GetCount(); i++) {
FX_INT32 numDataCodewords = ((ECB*)ecBlockArray[j])->GetDataCodewords();
FX_INT32 numBlockCodewords = ecBlocks->GetECCodewords() + numDataCodewords;
CFX_ByteArray codewords;
codewords.SetSize(numBlockCodewords);
(*result)[numResultBlocks++] = FX_NEW CBC_DataMatrixDataBlock(numDataCodewords, &codewords);
codewords.SetSize(0);
}
}
FX_INT32 longerBlocksTotalCodewords = ((CBC_DataMatrixDataBlock*)(*result)[0])->GetCodewords()->GetSize();
FX_INT32 longerBlocksNumDataCodewords = longerBlocksTotalCodewords - ecBlocks->GetECCodewords();
FX_INT32 shorterBlocksNumDataCodewords = longerBlocksNumDataCodewords - 1;
FX_INT32 rawCodewordsOffset = 0;
for (i = 0; i < shorterBlocksNumDataCodewords; i++) {
FX_INT32 j;
for (j = 0; j < numResultBlocks; j++) {
if (rawCodewordsOffset < rawCodewords->GetSize()) {
((CBC_DataMatrixDataBlock*)(*result)[j])->GetCodewords()->operator [](i) = (*rawCodewords)[rawCodewordsOffset++];
}
}
}
FX_BOOL specialVersion = version->GetVersionNumber() == 24;
FX_INT32 numLongerBlocks = specialVersion ? 8 : numResultBlocks;
for (j = 0; j < numLongerBlocks; j++) {
if (rawCodewordsOffset < rawCodewords->GetSize()) {
((CBC_DataMatrixDataBlock*)(*result)[j])->GetCodewords()->operator [](longerBlocksNumDataCodewords - 1) = (*rawCodewords)[rawCodewordsOffset++];
}
}
FX_INT32 max = ((CBC_DataMatrixDataBlock*)(*result)[0])->GetCodewords()->GetSize();
for (i = longerBlocksNumDataCodewords; i < max; i++) {
FX_INT32 j;
for (j = 0; j < numResultBlocks; j++) {
FX_INT32 iOffset = specialVersion && j > 7 ? i - 1 : i;
if (rawCodewordsOffset < rawCodewords->GetSize()) {
((CBC_DataMatrixDataBlock*)(*result)[j])->GetCodewords()->operator [](iOffset) = (*rawCodewords)[rawCodewordsOffset++];
}
}
}
if (rawCodewordsOffset != rawCodewords->GetSize()) {
e = BCExceptionIllegalArgument;
return NULL;
}
return result.release();
}
FX_INT32 CBC_DataMatrixDataBlock::GetNumDataCodewords()
{
return m_numDataCodewords;
}
CFX_ByteArray *CBC_DataMatrixDataBlock::GetCodewords()
{
return &m_codewords;
}
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