| // 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 2007 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/qrcode/BC_QRDataBlock.h" |
| |
| #include <memory> |
| |
| #include "xfa/fxbarcode/qrcode/BC_QRCoderECB.h" |
| #include "xfa/fxbarcode/qrcode/BC_QRCoderECBlocks.h" |
| #include "xfa/fxbarcode/qrcode/BC_QRCoderVersion.h" |
| #include "xfa/fxbarcode/utils.h" |
| |
| CBC_QRDataBlock::CBC_QRDataBlock(int32_t numDataCodewords, |
| CFX_ByteArray* codewords) |
| : m_numDataCodewords(numDataCodewords), m_codewords(codewords) {} |
| CBC_QRDataBlock::~CBC_QRDataBlock() { |
| delete m_codewords; |
| } |
| int32_t CBC_QRDataBlock::GetNumDataCodewords() { |
| return m_numDataCodewords; |
| } |
| CFX_ByteArray* CBC_QRDataBlock::GetCodewords() { |
| return m_codewords; |
| } |
| CFX_ArrayTemplate<CBC_QRDataBlock*>* CBC_QRDataBlock::GetDataBlocks( |
| CFX_ByteArray* rawCodewords, |
| CBC_QRCoderVersion* version, |
| CBC_QRCoderErrorCorrectionLevel* ecLevel, |
| int32_t& e) { |
| if (rawCodewords->GetSize() != version->GetTotalCodeWords()) { |
| e = BCExceptionIllegalArgument; |
| BC_EXCEPTION_CHECK_ReturnValue(e, NULL); |
| } |
| CBC_QRCoderECBlocks* ecBlocks = version->GetECBlocksForLevel(ecLevel); |
| int32_t totalBlocks = 0; |
| CFX_ArrayTemplate<CBC_QRCoderECB*>* ecBlockArray = ecBlocks->GetECBlocks(); |
| int32_t i = 0; |
| for (i = 0; i < ecBlockArray->GetSize(); i++) { |
| totalBlocks += (*ecBlockArray)[i]->GetCount(); |
| } |
| std::unique_ptr<CFX_ArrayTemplate<CBC_QRDataBlock*>> result( |
| new CFX_ArrayTemplate<CBC_QRDataBlock*>()); |
| result->SetSize(totalBlocks); |
| int32_t numResultBlocks = 0; |
| for (int32_t j = 0; j < ecBlockArray->GetSize(); j++) { |
| CBC_QRCoderECB* ecBlock = (*ecBlockArray)[j]; |
| for (int32_t k = 0; k < ecBlock->GetCount(); k++) { |
| int32_t numDataCodewords = ecBlock->GetDataCodeWords(); |
| int32_t numBlockCodewords = |
| ecBlocks->GetECCodeWordsPerBlock() + numDataCodewords; |
| CFX_ByteArray* bytearray = new CFX_ByteArray(); |
| bytearray->SetSize(numBlockCodewords); |
| (*result)[numResultBlocks++] = |
| new CBC_QRDataBlock(numDataCodewords, bytearray); |
| } |
| } |
| int32_t shorterBlocksTotalCodewords = (*result)[0]->m_codewords->GetSize(); |
| int32_t longerBlocksStartAt = result->GetSize() - 1; |
| while (longerBlocksStartAt >= 0) { |
| int32_t numCodewords = |
| (*result)[longerBlocksStartAt]->m_codewords->GetSize(); |
| if (numCodewords == shorterBlocksTotalCodewords) { |
| break; |
| } |
| longerBlocksStartAt--; |
| } |
| longerBlocksStartAt++; |
| int32_t shorterBlocksNumDataCodewords = |
| shorterBlocksTotalCodewords - ecBlocks->GetECCodeWordsPerBlock(); |
| int32_t rawCodewordsOffset = 0; |
| int32_t x = 0; |
| for (int32_t k = 0; k < shorterBlocksNumDataCodewords; k++) { |
| for (x = 0; x < numResultBlocks; x++) { |
| (*((*result)[x]->m_codewords))[k] = (*rawCodewords)[rawCodewordsOffset++]; |
| } |
| } |
| for (x = longerBlocksStartAt; x < numResultBlocks; x++) { |
| (*((*result)[x]->m_codewords))[shorterBlocksNumDataCodewords] = |
| (*rawCodewords)[rawCodewordsOffset++]; |
| } |
| int32_t max = (*result)[0]->m_codewords->GetSize(); |
| for (i = shorterBlocksNumDataCodewords; i < max; i++) { |
| for (int32_t y = 0; y < numResultBlocks; y++) { |
| int32_t iOffset = y < longerBlocksStartAt ? i : i + 1; |
| (*((*result)[y]->m_codewords))[iOffset] = |
| (*rawCodewords)[rawCodewordsOffset++]; |
| } |
| } |
| return result.release(); |
| } |