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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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