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Side by Side Diff: xfa/src/fxbarcode/oned/BC_OnedEAN13Reader.cpp

Issue 1803723002: Move xfa/src up to xfa/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Rebase to master Created 4 years, 9 months ago
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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/BC_Reader.h"
24 #include "xfa/src/fxbarcode/common/BC_CommonBitArray.h"
25 #include "xfa/src/fxbarcode/oned/BC_OneDReader.h"
26 #include "xfa/src/fxbarcode/oned/BC_OneDimReader.h"
27 #include "xfa/src/fxbarcode/oned/BC_OnedEAN13Reader.h"
28 #include "xfa/src/fxbarcode/utils.h"
29
30 const int32_t CBC_OnedEAN13Reader::FIRST_DIGIT_ENCODINGS[10] = {
31 0x00, 0x0B, 0x0D, 0xE, 0x13, 0x19, 0x1C, 0x15, 0x16, 0x1A};
32
33 CBC_OnedEAN13Reader::CBC_OnedEAN13Reader() {}
34 CBC_OnedEAN13Reader::~CBC_OnedEAN13Reader() {}
35 void CBC_OnedEAN13Reader::DetermineFirstDigit(CFX_ByteString& result,
36 int32_t lgPatternFound,
37 int32_t& e) {
38 for (int32_t d = 0; d < 10; d++) {
39 if (lgPatternFound == FIRST_DIGIT_ENCODINGS[d]) {
40 result.Insert(0, (FX_CHAR)('0' + d));
41 return;
42 }
43 }
44 e = BCExceptionNotFound;
45 BC_EXCEPTION_CHECK_ReturnVoid(e);
46 }
47 int32_t CBC_OnedEAN13Reader::DecodeMiddle(CBC_CommonBitArray* row,
48 CFX_Int32Array* startRange,
49 CFX_ByteString& resultString,
50 int32_t& e) {
51 CFX_Int32Array counters;
52 counters.Add(0);
53 counters.Add(0);
54 counters.Add(0);
55 counters.Add(0);
56 int32_t end = row->GetSize();
57 int32_t rowOffset = (*startRange)[1];
58 int32_t lgPatternFound = 0;
59 for (int32_t x = 0; x < 6 && rowOffset < end; x++) {
60 int32_t bestMatch =
61 DecodeDigit(row, &counters, rowOffset,
62 &(CBC_OneDimReader::L_AND_G_PATTERNS[0][0]), 20, e);
63 BC_EXCEPTION_CHECK_ReturnValue(e, 0);
64 resultString += (FX_CHAR)('0' + bestMatch % 10);
65 for (int32_t i = 0; i < counters.GetSize(); i++) {
66 rowOffset += counters[i];
67 }
68 if (bestMatch >= 10) {
69 lgPatternFound |= 1 << (5 - x);
70 }
71 }
72 DetermineFirstDigit(resultString, lgPatternFound, e);
73 BC_EXCEPTION_CHECK_ReturnValue(e, 0);
74 CFX_Int32Array result;
75 result.Add(CBC_OneDimReader::MIDDLE_PATTERN[0]);
76 result.Add(CBC_OneDimReader::MIDDLE_PATTERN[1]);
77 result.Add(CBC_OneDimReader::MIDDLE_PATTERN[2]);
78 result.Add(CBC_OneDimReader::MIDDLE_PATTERN[3]);
79 result.Add(CBC_OneDimReader::MIDDLE_PATTERN[4]);
80 CFX_Int32Array* middleRange =
81 FindGuardPattern(row, rowOffset, TRUE, &result, e);
82 BC_EXCEPTION_CHECK_ReturnValue(e, 0);
83 rowOffset = (*middleRange)[1];
84 delete middleRange;
85 for (int32_t Y = 0; Y < 6 && rowOffset < end; Y++) {
86 int32_t bestMatch =
87 DecodeDigit(row, &counters, rowOffset,
88 &(CBC_OneDimReader::L_PATTERNS[0][0]), 10, e);
89 BC_EXCEPTION_CHECK_ReturnValue(e, 0);
90 resultString += (FX_CHAR)('0' + bestMatch);
91 for (int32_t k = 0; k < counters.GetSize(); k++) {
92 rowOffset += counters[k];
93 }
94 }
95 return rowOffset;
96 }
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