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 "xfa/src/fxbarcode/barcode.h"
24 #include "xfa/src/fxbarcode/BC_Reader.h"
25 #include "xfa/src/fxbarcode/BC_BinaryBitmap.h"
26 #include "xfa/src/fxbarcode/BC_ResultPoint.h"
27 #include "xfa/src/fxbarcode/BC_BinaryBitmap.h"
28 #include "xfa/src/fxbarcode/BC_DecoderResult.h"
29 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
30 #include "xfa/src/fxbarcode/common/BC_CommonBitArray.h"
31 #include "xfa/src/fxbarcode/common/BC_CommonDecoderResult.h"
32 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
33 #include "BC_PDF417DetectorResult.h"
34 #include "BC_PDF417Detector.h"
35 #include "BC_PDF417DetectorResult.h"
36 #include "BC_PDF417Codeword.h"
37 #include "BC_PDF417Common.h"
38 #include "BC_PDF417BarcodeValue.h"
39 #include "BC_PDF417BarcodeMetadata.h"
40 #include "BC_PDF417BoundingBox.h"
41 #include "BC_PDF417DetectionResultColumn.h"
42 #include "BC_PDF417DetectionResultRowIndicatorColumn.h"
43 #include "BC_PDF417DetectionResult.h"
44 #include "BC_PDF417DecodedBitStreamParser.h"
45 #include "BC_PDF417CodewordDecoder.h"
46 #include "BC_PDF417DecodedBitStreamParser.h"
47 #include "BC_PDF417ECModulusPoly.h"
48 #include "BC_PDF417ECModulusGF.h"
49 #include "BC_PDF417ECErrorCorrection.h"
50 #include "BC_PDF417DecodedBitStreamParser.h"
51 #include "BC_PDF417ScanningDecoder.h"
52 #include "BC_PDF417Reader.h"
53 #define Integer_MAX_VALUE 2147483647
CBC_PDF417Reader()54 CBC_PDF417Reader::CBC_PDF417Reader() {}
~CBC_PDF417Reader()55 CBC_PDF417Reader::~CBC_PDF417Reader() {}
Decode(CBC_BinaryBitmap * image,int32_t & e)56 CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image, int32_t& e) {
57 return Decode(image, 0, e);
58 }
Decode(CBC_BinaryBitmap * image,FX_BOOL multiple,int32_t hints,int32_t & e)59 CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image,
60 FX_BOOL multiple,
61 int32_t hints,
62 int32_t& e) {
63 CFX_ByteString results;
64 CBC_PDF417DetectorResult* detectorResult =
65 CBC_Detector::detect(image, hints, multiple, e);
66 BC_EXCEPTION_CHECK_ReturnValue(e, "");
67 for (int32_t i = 0; i < detectorResult->getPoints()->GetSize(); i++) {
68 CFX_PtrArray* points = (CFX_PtrArray*)detectorResult->getPoints()->GetAt(i);
69 CBC_CommonDecoderResult* ResultTemp = CBC_PDF417ScanningDecoder::decode(
70 detectorResult->getBits(), (CBC_ResultPoint*)points->GetAt(4),
71 (CBC_ResultPoint*)points->GetAt(5), (CBC_ResultPoint*)points->GetAt(6),
72 (CBC_ResultPoint*)points->GetAt(7), getMinCodewordWidth(*points),
73 getMaxCodewordWidth(*points), e);
74 if (ResultTemp == NULL) {
75 delete detectorResult;
76 e = BCExceptiontNotFoundInstance;
77 return "";
78 }
79 results += ResultTemp->GetText();
80 delete ResultTemp;
81 }
82 delete detectorResult;
83 return results;
84 }
Decode(CBC_BinaryBitmap * image,int32_t hints,int32_t & e)85 CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image,
86 int32_t hints,
87 int32_t& e) {
88 CFX_ByteString bs = Decode(image, FALSE, 0, e);
89 BC_EXCEPTION_CHECK_ReturnValue(e, "");
90 return bs;
91 }
getMaxWidth(CBC_ResultPoint * p1,CBC_ResultPoint * p2)92 int32_t CBC_PDF417Reader::getMaxWidth(CBC_ResultPoint* p1,
93 CBC_ResultPoint* p2) {
94 if (p1 == NULL || p2 == NULL) {
95 return 0;
96 }
97 return (int32_t)FXSYS_fabs(p1->GetX() - p2->GetX());
98 }
getMinWidth(CBC_ResultPoint * p1,CBC_ResultPoint * p2)99 int32_t CBC_PDF417Reader::getMinWidth(CBC_ResultPoint* p1,
100 CBC_ResultPoint* p2) {
101 if (p1 == NULL || p2 == NULL) {
102 return Integer_MAX_VALUE;
103 }
104 return (int32_t)FXSYS_fabs(p1->GetX() - p2->GetX());
105 }
getMaxCodewordWidth(CFX_PtrArray & p)106 int32_t CBC_PDF417Reader::getMaxCodewordWidth(CFX_PtrArray& p) {
107 int32_t a =
108 getMaxWidth((CBC_ResultPoint*)p.GetAt(6), (CBC_ResultPoint*)p.GetAt(2)) *
109 CBC_PDF417Common::MODULES_IN_CODEWORD /
110 CBC_PDF417Common::MODULES_IN_STOP_PATTERN;
111 int32_t b =
112 getMaxWidth((CBC_ResultPoint*)p.GetAt(7), (CBC_ResultPoint*)p.GetAt(3)) *
113 CBC_PDF417Common::MODULES_IN_CODEWORD /
114 CBC_PDF417Common::MODULES_IN_STOP_PATTERN;
115 int32_t c = getMaxWidth((CBC_ResultPoint*)p.GetAt(0),
116 (CBC_ResultPoint*)p.GetAt(4)) < a
117 ? getMaxWidth((CBC_ResultPoint*)p.GetAt(0),
118 (CBC_ResultPoint*)p.GetAt(4))
119 : a;
120 int32_t d = getMaxWidth((CBC_ResultPoint*)p.GetAt(1),
121 (CBC_ResultPoint*)p.GetAt(5)) < b
122 ? getMaxWidth((CBC_ResultPoint*)p.GetAt(1),
123 (CBC_ResultPoint*)p.GetAt(5))
124 : b;
125 return c < d ? c : d;
126 }
getMinCodewordWidth(CFX_PtrArray & p)127 int32_t CBC_PDF417Reader::getMinCodewordWidth(CFX_PtrArray& p) {
128 int32_t a =
129 getMinWidth((CBC_ResultPoint*)p.GetAt(6), (CBC_ResultPoint*)p.GetAt(2)) *
130 CBC_PDF417Common::MODULES_IN_CODEWORD /
131 CBC_PDF417Common::MODULES_IN_STOP_PATTERN;
132 int32_t b =
133 getMinWidth((CBC_ResultPoint*)p.GetAt(7), (CBC_ResultPoint*)p.GetAt(3)) *
134 CBC_PDF417Common::MODULES_IN_CODEWORD /
135 CBC_PDF417Common::MODULES_IN_STOP_PATTERN;
136 int32_t c = getMinWidth((CBC_ResultPoint*)p.GetAt(0),
137 (CBC_ResultPoint*)p.GetAt(4)) < a
138 ? getMinWidth((CBC_ResultPoint*)p.GetAt(0),
139 (CBC_ResultPoint*)p.GetAt(4))
140 : a;
141 int32_t d = getMinWidth((CBC_ResultPoint*)p.GetAt(1),
142 (CBC_ResultPoint*)p.GetAt(5)) < b
143 ? getMinWidth((CBC_ResultPoint*)p.GetAt(1),
144 (CBC_ResultPoint*)p.GetAt(5))
145 : b;
146 return c < d ? c : d;
147 }
148