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