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