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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 2009 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 <limits> | |
24 | |
25 #include "xfa/src/fxbarcode/BC_BinaryBitmap.h" | |
26 #include "xfa/src/fxbarcode/BC_BinaryBitmap.h" | |
27 #include "xfa/src/fxbarcode/BC_DecoderResult.h" | |
28 #include "xfa/src/fxbarcode/BC_Reader.h" | |
29 #include "xfa/src/fxbarcode/BC_ResultPoint.h" | |
30 #include "xfa/src/fxbarcode/common/BC_CommonBitArray.h" | |
31 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" | |
32 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" | |
33 #include "xfa/src/fxbarcode/common/BC_CommonDecoderResult.h" | |
34 #include "xfa/src/fxbarcode/pdf417/BC_PDF417BarcodeMetadata.h" | |
35 #include "xfa/src/fxbarcode/pdf417/BC_PDF417BarcodeValue.h" | |
36 #include "xfa/src/fxbarcode/pdf417/BC_PDF417BoundingBox.h" | |
37 #include "xfa/src/fxbarcode/pdf417/BC_PDF417Codeword.h" | |
38 #include "xfa/src/fxbarcode/pdf417/BC_PDF417CodewordDecoder.h" | |
39 #include "xfa/src/fxbarcode/pdf417/BC_PDF417Common.h" | |
40 #include "xfa/src/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.h" | |
41 #include "xfa/src/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.h" | |
42 #include "xfa/src/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.h" | |
43 #include "xfa/src/fxbarcode/pdf417/BC_PDF417DetectionResult.h" | |
44 #include "xfa/src/fxbarcode/pdf417/BC_PDF417DetectionResultColumn.h" | |
45 #include "xfa/src/fxbarcode/pdf417/BC_PDF417DetectionResultRowIndicatorColumn.h" | |
46 #include "xfa/src/fxbarcode/pdf417/BC_PDF417Detector.h" | |
47 #include "xfa/src/fxbarcode/pdf417/BC_PDF417DetectorResult.h" | |
48 #include "xfa/src/fxbarcode/pdf417/BC_PDF417DetectorResult.h" | |
49 #include "xfa/src/fxbarcode/pdf417/BC_PDF417ECErrorCorrection.h" | |
50 #include "xfa/src/fxbarcode/pdf417/BC_PDF417ECModulusGF.h" | |
51 #include "xfa/src/fxbarcode/pdf417/BC_PDF417ECModulusPoly.h" | |
52 #include "xfa/src/fxbarcode/pdf417/BC_PDF417Reader.h" | |
53 #include "xfa/src/fxbarcode/pdf417/BC_PDF417ScanningDecoder.h" | |
54 #include "xfa/src/fxbarcode/utils.h" | |
55 | |
56 CBC_PDF417Reader::CBC_PDF417Reader() {} | |
57 CBC_PDF417Reader::~CBC_PDF417Reader() {} | |
58 | |
59 CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image, int32_t& e) { | |
60 return Decode(image, 0, e); | |
61 } | |
62 CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image, | |
63 FX_BOOL multiple, | |
64 int32_t hints, | |
65 int32_t& e) { | |
66 CFX_ByteString results; | |
67 CBC_PDF417DetectorResult* detectorResult = | |
68 CBC_Detector::detect(image, hints, multiple, e); | |
69 BC_EXCEPTION_CHECK_ReturnValue(e, ""); | |
70 for (int32_t i = 0; i < detectorResult->getPoints()->GetSize(); i++) { | |
71 CFX_PtrArray* points = (CFX_PtrArray*)detectorResult->getPoints()->GetAt(i); | |
72 CBC_CommonDecoderResult* ResultTemp = CBC_PDF417ScanningDecoder::decode( | |
73 detectorResult->getBits(), (CBC_ResultPoint*)points->GetAt(4), | |
74 (CBC_ResultPoint*)points->GetAt(5), (CBC_ResultPoint*)points->GetAt(6), | |
75 (CBC_ResultPoint*)points->GetAt(7), getMinCodewordWidth(*points), | |
76 getMaxCodewordWidth(*points), e); | |
77 if (ResultTemp == NULL) { | |
78 delete detectorResult; | |
79 e = BCExceptiontNotFoundInstance; | |
80 return ""; | |
81 } | |
82 results += ResultTemp->GetText(); | |
83 delete ResultTemp; | |
84 } | |
85 delete detectorResult; | |
86 return results; | |
87 } | |
88 CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image, | |
89 int32_t hints, | |
90 int32_t& e) { | |
91 CFX_ByteString bs = Decode(image, FALSE, 0, e); | |
92 BC_EXCEPTION_CHECK_ReturnValue(e, ""); | |
93 return bs; | |
94 } | |
95 int32_t CBC_PDF417Reader::getMaxWidth(CBC_ResultPoint* p1, | |
96 CBC_ResultPoint* p2) { | |
97 if (p1 == NULL || p2 == NULL) { | |
98 return 0; | |
99 } | |
100 return (int32_t)FXSYS_fabs(p1->GetX() - p2->GetX()); | |
101 } | |
102 int32_t CBC_PDF417Reader::getMinWidth(CBC_ResultPoint* p1, | |
103 CBC_ResultPoint* p2) { | |
104 if (!p1 || !p2) | |
105 return std::numeric_limits<int32_t>::max(); | |
106 return (int32_t)FXSYS_fabs(p1->GetX() - p2->GetX()); | |
107 } | |
108 int32_t CBC_PDF417Reader::getMaxCodewordWidth(CFX_PtrArray& p) { | |
109 int32_t a = | |
110 getMaxWidth((CBC_ResultPoint*)p.GetAt(6), (CBC_ResultPoint*)p.GetAt(2)) * | |
111 CBC_PDF417Common::MODULES_IN_CODEWORD / | |
112 CBC_PDF417Common::MODULES_IN_STOP_PATTERN; | |
113 int32_t b = | |
114 getMaxWidth((CBC_ResultPoint*)p.GetAt(7), (CBC_ResultPoint*)p.GetAt(3)) * | |
115 CBC_PDF417Common::MODULES_IN_CODEWORD / | |
116 CBC_PDF417Common::MODULES_IN_STOP_PATTERN; | |
117 int32_t c = getMaxWidth((CBC_ResultPoint*)p.GetAt(0), | |
118 (CBC_ResultPoint*)p.GetAt(4)) < a | |
119 ? getMaxWidth((CBC_ResultPoint*)p.GetAt(0), | |
120 (CBC_ResultPoint*)p.GetAt(4)) | |
121 : a; | |
122 int32_t d = getMaxWidth((CBC_ResultPoint*)p.GetAt(1), | |
123 (CBC_ResultPoint*)p.GetAt(5)) < b | |
124 ? getMaxWidth((CBC_ResultPoint*)p.GetAt(1), | |
125 (CBC_ResultPoint*)p.GetAt(5)) | |
126 : b; | |
127 return c < d ? c : d; | |
128 } | |
129 int32_t CBC_PDF417Reader::getMinCodewordWidth(CFX_PtrArray& p) { | |
130 int32_t a = | |
131 getMinWidth((CBC_ResultPoint*)p.GetAt(6), (CBC_ResultPoint*)p.GetAt(2)) * | |
132 CBC_PDF417Common::MODULES_IN_CODEWORD / | |
133 CBC_PDF417Common::MODULES_IN_STOP_PATTERN; | |
134 int32_t b = | |
135 getMinWidth((CBC_ResultPoint*)p.GetAt(7), (CBC_ResultPoint*)p.GetAt(3)) * | |
136 CBC_PDF417Common::MODULES_IN_CODEWORD / | |
137 CBC_PDF417Common::MODULES_IN_STOP_PATTERN; | |
138 int32_t c = getMinWidth((CBC_ResultPoint*)p.GetAt(0), | |
139 (CBC_ResultPoint*)p.GetAt(4)) < a | |
140 ? getMinWidth((CBC_ResultPoint*)p.GetAt(0), | |
141 (CBC_ResultPoint*)p.GetAt(4)) | |
142 : a; | |
143 int32_t d = getMinWidth((CBC_ResultPoint*)p.GetAt(1), | |
144 (CBC_ResultPoint*)p.GetAt(5)) < b | |
145 ? getMinWidth((CBC_ResultPoint*)p.GetAt(1), | |
146 (CBC_ResultPoint*)p.GetAt(5)) | |
147 : b; | |
148 return c < d ? c : d; | |
149 } | |
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