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 FXBARCODE_QRCODE_BC_QRCODERMATRIXUTIL_H_ 8 #define FXBARCODE_QRCODE_BC_QRCODERMATRIXUTIL_H_ 9 10 class CBC_CommonByteMatrix; 11 class CBC_QRCoderErrorCorrectionLevel; 12 class CBC_QRCoderBitVector; 13 14 class CBC_QRCoderMatrixUtil { 15 public: 16 CBC_QRCoderMatrixUtil(); 17 virtual ~CBC_QRCoderMatrixUtil(); 18 static void ClearMatrix(CBC_CommonByteMatrix* matrix, int32_t& e); 19 static void BuildMatrix(CBC_QRCoderBitVector* dataBits, 20 const CBC_QRCoderErrorCorrectionLevel* ecLevel, 21 int32_t version, 22 int32_t maskPattern, 23 CBC_CommonByteMatrix* matrix, 24 int32_t& e); 25 static void EmbedBasicPatterns(int32_t version, 26 CBC_CommonByteMatrix* matrix, 27 int32_t& e); 28 static void EmbedTypeInfo(const CBC_QRCoderErrorCorrectionLevel* ecLevel, 29 int32_t maskPattern, 30 CBC_CommonByteMatrix* matrix, 31 int32_t& e); 32 static void EmbedDataBits(CBC_QRCoderBitVector* dataBits, 33 int32_t maskPattern, 34 CBC_CommonByteMatrix* matrix, 35 int32_t& e); 36 static void MaybeEmbedVersionInfo(int32_t version, 37 CBC_CommonByteMatrix* matrix, 38 int32_t& e); 39 static int32_t FindMSBSet(int32_t value); 40 static int32_t CalculateBCHCode(int32_t code, int32_t poly); 41 static void MakeTypeInfoBits(const CBC_QRCoderErrorCorrectionLevel* ecLevel, 42 int32_t maskPattern, 43 CBC_QRCoderBitVector* bits, 44 int32_t& e); 45 static void MakeVersionInfoBits(int32_t version, 46 CBC_QRCoderBitVector* bits, 47 int32_t& e); 48 static bool IsEmpty(int32_t value); 49 static bool IsValidValue(int32_t value); 50 static void EmbedTimingPatterns(CBC_CommonByteMatrix* matrix, int32_t& e); 51 static void EmbedDarkDotAtLeftBottomCorner(CBC_CommonByteMatrix* matrix, 52 int32_t& e); 53 static void EmbedHorizontalSeparationPattern(int32_t xStart, 54 int32_t yStart, 55 CBC_CommonByteMatrix* matrix, 56 int32_t& e); 57 static void EmbedVerticalSeparationPattern(int32_t xStart, 58 int32_t yStart, 59 CBC_CommonByteMatrix* matrix, 60 int32_t& e); 61 static void EmbedPositionAdjustmentPattern(int32_t xStart, 62 int32_t yStart, 63 CBC_CommonByteMatrix* matrix, 64 int32_t& e); 65 static void EmbedPositionDetectionPattern(int32_t xStart, 66 int32_t yStart, 67 CBC_CommonByteMatrix* matrix, 68 int32_t& e); 69 static void EmbedPositionDetectionPatternsAndSeparators( 70 CBC_CommonByteMatrix* matrix, 71 int32_t& e); 72 static void MaybeEmbedPositionAdjustmentPatterns(int32_t version, 73 CBC_CommonByteMatrix* matrix, 74 int32_t& e); 75 76 private: 77 static const int32_t POSITION_DETECTION_PATTERN[7][7]; 78 static const int32_t VERTICAL_SEPARATION_PATTERN[7][1]; 79 static const int32_t HORIZONTAL_SEPARATION_PATTERN[1][8]; 80 static const int32_t POSITION_ADJUSTMENT_PATTERN[5][5]; 81 static const int32_t POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[40][7]; 82 static const int32_t TYPE_INFO_COORDINATES[15][2]; 83 static const int32_t VERSION_INFO_POLY; 84 static const int32_t TYPE_INFO_POLY; 85 static const int32_t TYPE_INFO_MASK_PATTERN; 86 }; 87 88 #endif // FXBARCODE_QRCODE_BC_QRCODERMATRIXUTIL_H_ 89
