xfa/src/fxbarcode/src/include/BC_PDF417ScanningDecoder.h - Issue 842043002: Organize barcode codes into modules.

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Issue 842043002: Organize barcode codes into modules. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa

Patch Set: rebase Created 5 years, 11 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

7 #ifndef _BC_PDF417SCANNINGDECODER_H_

8 #define _BC_PDF417SCANNINGDECODER_H_

9 class CBC_CommonDecoderResult;

10 class CBC_CommonBitMatrix;

11 class CBC_ErrorCorrection;

12 class CBC_Codeword;

13 class CBC_BoundingBox;

14 class CBC_ResultPoint;

15 class CBC_BarcodeMetadata;

16 class CBC_BarcodeValue;

17 class CBC_DetectionResult;

18 class CBC_DetectionResultRowIndicatorColumn;

19 class CBC_PDF417ScanningDecoder;

20 class CBC_PDF417ScanningDecoder : public CFX_Object

21 {

22 public:

23 CBC_PDF417ScanningDecoder();

24 virtual ~CBC_PDF417ScanningDecoder();

25 static void Initialize();

26 static void Finalize();

27 static CBC_CommonDecoderResult* decode(CBC_CommonBitMatrix* image, CBC_Resul tPoint* imageTopLeft, CBC_ResultPoint* imageBottomLeft, CBC_ResultPoint* imageTo pRight,

28 CBC_ResultPoint* imageBottomRight, FX _INT32 minCodewordWidth, FX_INT32 maxCodewordWidth, FX_INT32 &e);

29 static CFX_ByteString toString(CFX_PtrArray* barcodeMatrix);

30 private:

31 static FX_INT32 CODEWORD_SKEW_SIZE;

32 static FX_INT32 MAX_ERRORS;

33 static FX_INT32 MAX_EC_CODEWORDS;

34 static CBC_PDF417ECErrorCorrection* errorCorrection;

35 static CBC_DetectionResult* merge(CBC_DetectionResultRowIndicatorColumn* lef tRowIndicatorColumn, CBC_DetectionResultRowIndicatorColumn* rightRowIndicatorCol umn, FX_INT32 &e);

36 static CBC_BoundingBox* adjustBoundingBox(CBC_DetectionResultRowIndicatorCol umn* rowIndicatorColumn, FX_INT32 &e);

37 static FX_INT32 getMax(CFX_Int32Array& values);

38 static CBC_BarcodeMetadata* getBarcodeMetadata(CBC_DetectionResultRowIndicat orColumn* leftRowIndicatorColumn, CBC_DetectionResultRowIndicatorColumn* rightRo wIndicatorColumn);

39 static CBC_DetectionResultRowIndicatorColumn* getRowIndicatorColumn(CBC_Comm onBitMatrix* image, CBC_BoundingBox* boundingBox, CBC_ResultPoint startPoint,

40 FX_BOOL leftToRight, FX_INT32 minCodewordWidth, FX_INT32 maxCodeword Width);

41 static void adjustCodewordCount(CBC_DetectionResult* detectionResult, CFX_Pt rArray* barcodeMatrix, FX_INT32 &e);

42 static CBC_CommonDecoderResult* createDecoderResult(CBC_DetectionResult* det ectionResult, FX_INT32 &e);

43 static CBC_CommonDecoderResult* createDecoderResultFromAmbiguousValues(FX_IN T32 ecLevel, CFX_Int32Array &codewords, CFX_Int32Array &erasureArray, CFX_Int32A rray &ambiguousIndexes,

44 CFX_PtrArray& ambiguousIndexValues, FX_INT32 &e);

45 static CFX_PtrArray* createBarcodeMatrix(CBC_DetectionResult* detectionResul t);

46 static FX_BOOL isValidBarcodeColumn(CBC_DetectionResult* detectionResult, FX _INT32 barcodeColumn);

47 static FX_INT32 getStartColumn(CBC_DetectionResult* detectionResult, FX_INT3 2 barcodeColumn, FX_INT32 imageRow, FX_BOOL leftToRight);

48 static CBC_Codeword* detectCodeword(CBC_CommonBitMatrix* image, FX_INT32 min Column, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 startColumn,

49 FX_INT32 imageRow, FX_INT32 minCodewordW idth, FX_INT32 maxCodewordWidth);

50 static CFX_Int32Array* getModuleBitCount(CBC_CommonBitMatrix* image, FX_INT3 2 minColumn, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 startColumn, FX_I NT32 imageRow);

51 static FX_INT32 getNumberOfECCodeWords(FX_INT32 barcodeECLevel);

52 static FX_INT32 adjustCodewordStartColumn(CBC_CommonBitMatrix* image, FX_INT 32 minColumn, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 codewordStartCol umn, FX_INT32 imageRow);

53 static FX_BOOL checkCodewordSkew(FX_INT32 codewordSize, FX_INT32 minCodeword Width, FX_INT32 maxCodewordWidth);

54 static CBC_CommonDecoderResult* decodeCodewords(CFX_Int32Array &codewords, F X_INT32 ecLevel, CFX_Int32Array &erasures, FX_INT32 &e);

55 static FX_INT32 correctErrors(CFX_Int32Array &codewords, CFX_Int32Array &era sures, FX_INT32 numECCodewords, FX_INT32 &e);

56 static void verifyCodewordCount(CFX_Int32Array &codewords, FX_INT32 numECCod ewords, FX_INT32 &e);

57 static CFX_Int32Array* getBitCountForCodeword(FX_INT32 codeword);

58 static FX_INT32 getCodewordBucketNumber(FX_INT32 codeword);

59 static FX_INT32 getCodewordBucketNumber(CFX_Int32Array& moduleBitCount);

60 };

61 #endif

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