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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 // Original code is licensed as follows: | |
| 7 /* | |
| 8 * Copyright 2007 ZXing authors | |
| 9 * | |
| 10 * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 11 * you may not use this file except in compliance with the License. | |
| 12 * You may obtain a copy of the License at | |
| 13 * | |
| 14 * http://www.apache.org/licenses/LICENSE-2.0 | |
| 15 * | |
| 16 * Unless required by applicable law or agreed to in writing, software | |
| 17 * distributed under the License is distributed on an "AS IS" BASIS, | |
| 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 19 * See the License for the specific language governing permissions and | |
| 20 * limitations under the License. | |
| 21 */ | |
| 22 | |
| 23 #include "xfa/src/fxbarcode/qrcode/BC_QRDataBlock.h" | |
| 24 | |
| 25 #include <memory> | |
| 26 | |
| 27 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderECB.h" | |
| 28 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderECBlocks.h" | |
| 29 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderVersion.h" | |
| 30 #include "xfa/src/fxbarcode/utils.h" | |
| 31 | |
| 32 CBC_QRDataBlock::CBC_QRDataBlock(int32_t numDataCodewords, | |
| 33 CFX_ByteArray* codewords) | |
| 34 : m_numDataCodewords(numDataCodewords), m_codewords(codewords) {} | |
| 35 CBC_QRDataBlock::~CBC_QRDataBlock() { | |
| 36 delete m_codewords; | |
| 37 } | |
| 38 int32_t CBC_QRDataBlock::GetNumDataCodewords() { | |
| 39 return m_numDataCodewords; | |
| 40 } | |
| 41 CFX_ByteArray* CBC_QRDataBlock::GetCodewords() { | |
| 42 return m_codewords; | |
| 43 } | |
| 44 CFX_PtrArray* CBC_QRDataBlock::GetDataBlocks( | |
| 45 CFX_ByteArray* rawCodewords, | |
| 46 CBC_QRCoderVersion* version, | |
| 47 CBC_QRCoderErrorCorrectionLevel* ecLevel, | |
| 48 int32_t& e) { | |
| 49 if (rawCodewords->GetSize() != version->GetTotalCodeWords()) { | |
| 50 e = BCExceptionIllegalArgument; | |
| 51 BC_EXCEPTION_CHECK_ReturnValue(e, NULL); | |
| 52 } | |
| 53 CBC_QRCoderECBlocks* ecBlocks = version->GetECBlocksForLevel(ecLevel); | |
| 54 int32_t totalBlocks = 0; | |
| 55 CFX_PtrArray* ecBlockArray = ecBlocks->GetECBlocks(); | |
| 56 int32_t i = 0; | |
| 57 for (i = 0; i < ecBlockArray->GetSize(); i++) { | |
| 58 totalBlocks += ((CBC_QRCoderECB*)(*ecBlockArray)[i])->GetCount(); | |
| 59 } | |
| 60 std::unique_ptr<CFX_PtrArray> result(new CFX_PtrArray()); | |
| 61 result->SetSize(totalBlocks); | |
| 62 int32_t numResultBlocks = 0; | |
| 63 for (int32_t j = 0; j < ecBlockArray->GetSize(); j++) { | |
| 64 CBC_QRCoderECB* ecBlock = (CBC_QRCoderECB*)(*ecBlockArray)[j]; | |
| 65 for (int32_t k = 0; k < ecBlock->GetCount(); k++) { | |
| 66 int32_t numDataCodewords = ecBlock->GetDataCodeWords(); | |
| 67 int32_t numBlockCodewords = | |
| 68 ecBlocks->GetECCodeWordsPerBlock() + numDataCodewords; | |
| 69 CFX_ByteArray* bytearray = new CFX_ByteArray(); | |
| 70 bytearray->SetSize(numBlockCodewords); | |
| 71 (*result)[numResultBlocks++] = | |
| 72 new CBC_QRDataBlock(numDataCodewords, bytearray); | |
| 73 } | |
| 74 } | |
| 75 int32_t shorterBlocksTotalCodewords = | |
| 76 ((CBC_QRDataBlock*)(*result)[0])->m_codewords->GetSize(); | |
| 77 int32_t longerBlocksStartAt = result->GetSize() - 1; | |
| 78 while (longerBlocksStartAt >= 0) { | |
| 79 int32_t numCodewords = ((CBC_QRDataBlock*)(*result)[longerBlocksStartAt]) | |
| 80 ->m_codewords->GetSize(); | |
| 81 if (numCodewords == shorterBlocksTotalCodewords) { | |
| 82 break; | |
| 83 } | |
| 84 longerBlocksStartAt--; | |
| 85 } | |
| 86 longerBlocksStartAt++; | |
| 87 int32_t shorterBlocksNumDataCodewords = | |
| 88 shorterBlocksTotalCodewords - ecBlocks->GetECCodeWordsPerBlock(); | |
| 89 int32_t rawCodewordsOffset = 0; | |
| 90 int32_t x = 0; | |
| 91 for (int32_t k = 0; k < shorterBlocksNumDataCodewords; k++) { | |
| 92 for (x = 0; x < numResultBlocks; x++) { | |
| 93 (*(((CBC_QRDataBlock*)(*result)[x])->m_codewords))[k] = | |
| 94 (*rawCodewords)[rawCodewordsOffset++]; | |
| 95 } | |
| 96 } | |
| 97 for (x = longerBlocksStartAt; x < numResultBlocks; x++) { | |
| 98 (*(((CBC_QRDataBlock*)(*result)[x]) | |
| 99 ->m_codewords))[shorterBlocksNumDataCodewords] = | |
| 100 (*rawCodewords)[rawCodewordsOffset++]; | |
| 101 } | |
| 102 int32_t max = ((CBC_QRDataBlock*)(*result)[0])->m_codewords->GetSize(); | |
| 103 for (i = shorterBlocksNumDataCodewords; i < max; i++) { | |
| 104 for (int32_t y = 0; y < numResultBlocks; y++) { | |
| 105 int32_t iOffset = y < longerBlocksStartAt ? i : i + 1; | |
| 106 (*(((CBC_QRDataBlock*)(*result)[y])->m_codewords))[iOffset] = | |
| 107 (*rawCodewords)[rawCodewordsOffset++]; | |
| 108 } | |
| 109 } | |
| 110 return result.release(); | |
| 111 } | |
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