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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 2008 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/datamatrix/BC_DataMatrixDataBlock.h" | |
24 | |
25 #include <memory> | |
26 | |
27 #include "xfa/src/fxbarcode/datamatrix/BC_DataMatrixVersion.h" | |
28 #include "xfa/src/fxbarcode/utils.h" | |
29 | |
30 CBC_DataMatrixDataBlock::~CBC_DataMatrixDataBlock() {} | |
31 CBC_DataMatrixDataBlock::CBC_DataMatrixDataBlock(int32_t numDataCodewords, | |
32 CFX_ByteArray* codewords) { | |
33 m_codewords.Copy(*codewords); | |
34 m_numDataCodewords = numDataCodewords; | |
35 } | |
36 CFX_PtrArray* CBC_DataMatrixDataBlock::GetDataBlocks( | |
37 CFX_ByteArray* rawCodewords, | |
38 CBC_DataMatrixVersion* version, | |
39 int32_t& e) { | |
40 ECBlocks* ecBlocks = version->GetECBlocks(); | |
41 int32_t totalBlocks = 0; | |
42 const CFX_PtrArray& ecBlockArray = ecBlocks->GetECBlocks(); | |
43 int32_t i; | |
44 for (i = 0; i < ecBlockArray.GetSize(); i++) { | |
45 totalBlocks += ((ECB*)ecBlockArray[i])->GetCount(); | |
46 } | |
47 std::unique_ptr<CFX_PtrArray> result(new CFX_PtrArray()); | |
48 result->SetSize(totalBlocks); | |
49 int32_t numResultBlocks = 0; | |
50 int32_t j; | |
51 for (j = 0; j < ecBlockArray.GetSize(); j++) { | |
52 for (i = 0; i < ((ECB*)ecBlockArray[j])->GetCount(); i++) { | |
53 int32_t numDataCodewords = ((ECB*)ecBlockArray[j])->GetDataCodewords(); | |
54 int32_t numBlockCodewords = ecBlocks->GetECCodewords() + numDataCodewords; | |
55 CFX_ByteArray codewords; | |
56 codewords.SetSize(numBlockCodewords); | |
57 (*result)[numResultBlocks++] = | |
58 new CBC_DataMatrixDataBlock(numDataCodewords, &codewords); | |
59 codewords.SetSize(0); | |
60 } | |
61 } | |
62 int32_t longerBlocksTotalCodewords = | |
63 ((CBC_DataMatrixDataBlock*)(*result)[0])->GetCodewords()->GetSize(); | |
64 int32_t longerBlocksNumDataCodewords = | |
65 longerBlocksTotalCodewords - ecBlocks->GetECCodewords(); | |
66 int32_t shorterBlocksNumDataCodewords = longerBlocksNumDataCodewords - 1; | |
67 int32_t rawCodewordsOffset = 0; | |
68 for (i = 0; i < shorterBlocksNumDataCodewords; i++) { | |
69 int32_t j; | |
70 for (j = 0; j < numResultBlocks; j++) { | |
71 if (rawCodewordsOffset < rawCodewords->GetSize()) { | |
72 ((CBC_DataMatrixDataBlock*)(*result)[j]) | |
73 ->GetCodewords() | |
74 -> | |
75 operator[](i) = (*rawCodewords)[rawCodewordsOffset++]; | |
76 } | |
77 } | |
78 } | |
79 const bool specialVersion = version->GetVersionNumber() == 24; | |
80 int32_t numLongerBlocks = specialVersion ? 8 : numResultBlocks; | |
81 for (j = 0; j < numLongerBlocks; j++) { | |
82 if (rawCodewordsOffset < rawCodewords->GetSize()) { | |
83 ((CBC_DataMatrixDataBlock*)(*result)[j]) | |
84 ->GetCodewords() | |
85 -> | |
86 operator[](longerBlocksNumDataCodewords - 1) = | |
87 (*rawCodewords)[rawCodewordsOffset++]; | |
88 } | |
89 } | |
90 int32_t max = | |
91 ((CBC_DataMatrixDataBlock*)(*result)[0])->GetCodewords()->GetSize(); | |
92 for (i = longerBlocksNumDataCodewords; i < max; i++) { | |
93 int32_t j; | |
94 for (j = 0; j < numResultBlocks; j++) { | |
95 int32_t iOffset = specialVersion && j > 7 ? i - 1 : i; | |
96 if (rawCodewordsOffset < rawCodewords->GetSize()) { | |
97 ((CBC_DataMatrixDataBlock*)(*result)[j]) | |
98 ->GetCodewords() | |
99 -> | |
100 operator[](iOffset) = (*rawCodewords)[rawCodewordsOffset++]; | |
101 } | |
102 } | |
103 } | |
104 if (rawCodewordsOffset != rawCodewords->GetSize()) { | |
105 e = BCExceptionIllegalArgument; | |
106 return NULL; | |
107 } | |
108 return result.release(); | |
109 } | |
110 int32_t CBC_DataMatrixDataBlock::GetNumDataCodewords() { | |
111 return m_numDataCodewords; | |
112 } | |
113 CFX_ByteArray* CBC_DataMatrixDataBlock::GetCodewords() { | |
114 return &m_codewords; | |
115 } | |
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