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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 // Original code is licensed as follows: | 6 // Original code is licensed as follows: |
7 /* | 7 /* |
8 * Copyright 2006 Jeremias Maerki. | 8 * Copyright 2006 Jeremias Maerki. |
9 * | 9 * |
10 * Licensed under the Apache License, Version 2.0 (the "License"); | 10 * Licensed under the Apache License, Version 2.0 (the "License"); |
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39 } | 39 } |
40 int32_t CBC_DefaultPlacement::getNumrows() { | 40 int32_t CBC_DefaultPlacement::getNumrows() { |
41 return m_numrows; | 41 return m_numrows; |
42 } | 42 } |
43 int32_t CBC_DefaultPlacement::getNumcols() { | 43 int32_t CBC_DefaultPlacement::getNumcols() { |
44 return m_numcols; | 44 return m_numcols; |
45 } | 45 } |
46 CFX_ByteArray& CBC_DefaultPlacement::getBits() { | 46 CFX_ByteArray& CBC_DefaultPlacement::getBits() { |
47 return m_bits; | 47 return m_bits; |
48 } | 48 } |
49 FX_BOOL CBC_DefaultPlacement::getBit(int32_t col, int32_t row) { | 49 bool CBC_DefaultPlacement::getBit(int32_t col, int32_t row) { |
50 return m_bits[row * m_numcols + col] == 1; | 50 return m_bits[row * m_numcols + col] == 1; |
51 } | 51 } |
52 void CBC_DefaultPlacement::setBit(int32_t col, int32_t row, FX_BOOL bit) { | 52 void CBC_DefaultPlacement::setBit(int32_t col, int32_t row, bool bit) { |
53 m_bits[row * m_numcols + col] = bit ? (uint8_t)1 : (uint8_t)0; | 53 m_bits[row * m_numcols + col] = bit ? (uint8_t)1 : (uint8_t)0; |
54 } | 54 } |
55 FX_BOOL CBC_DefaultPlacement::hasBit(int32_t col, int32_t row) { | 55 bool CBC_DefaultPlacement::hasBit(int32_t col, int32_t row) { |
56 return m_bits[row * m_numcols + col] != 2; | 56 return m_bits[row * m_numcols + col] != 2; |
57 } | 57 } |
58 void CBC_DefaultPlacement::place() { | 58 void CBC_DefaultPlacement::place() { |
59 int32_t pos = 0; | 59 int32_t pos = 0; |
60 int32_t row = 4; | 60 int32_t row = 4; |
61 int32_t col = 0; | 61 int32_t col = 0; |
62 do { | 62 do { |
63 if ((row == m_numrows) && (col == 0)) { | 63 if ((row == m_numrows) && (col == 0)) { |
64 corner1(pos++); | 64 corner1(pos++); |
65 } | 65 } |
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85 if ((row >= 0) && (col < m_numcols) && !hasBit(col, row)) { | 85 if ((row >= 0) && (col < m_numcols) && !hasBit(col, row)) { |
86 utah(row, col, pos++); | 86 utah(row, col, pos++); |
87 } | 87 } |
88 row += 2; | 88 row += 2; |
89 col -= 2; | 89 col -= 2; |
90 } while ((row < m_numrows) && (col >= 0)); | 90 } while ((row < m_numrows) && (col >= 0)); |
91 row += 3; | 91 row += 3; |
92 col++; | 92 col++; |
93 } while ((row < m_numrows) || (col < m_numcols)); | 93 } while ((row < m_numrows) || (col < m_numcols)); |
94 if (!hasBit(m_numcols - 1, m_numrows - 1)) { | 94 if (!hasBit(m_numcols - 1, m_numrows - 1)) { |
95 setBit(m_numcols - 1, m_numrows - 1, TRUE); | 95 setBit(m_numcols - 1, m_numrows - 1, true); |
96 setBit(m_numcols - 2, m_numrows - 2, TRUE); | 96 setBit(m_numcols - 2, m_numrows - 2, true); |
97 } | 97 } |
98 } | 98 } |
99 void CBC_DefaultPlacement::module(int32_t row, | 99 void CBC_DefaultPlacement::module(int32_t row, |
100 int32_t col, | 100 int32_t col, |
101 int32_t pos, | 101 int32_t pos, |
102 int32_t bit) { | 102 int32_t bit) { |
103 if (row < 0) { | 103 if (row < 0) { |
104 row += m_numrows; | 104 row += m_numrows; |
105 col += 4 - ((m_numrows + 4) % 8); | 105 col += 4 - ((m_numrows + 4) % 8); |
106 } | 106 } |
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155 void CBC_DefaultPlacement::corner4(int32_t pos) { | 155 void CBC_DefaultPlacement::corner4(int32_t pos) { |
156 module(m_numrows - 1, 0, pos, 1); | 156 module(m_numrows - 1, 0, pos, 1); |
157 module(m_numrows - 1, m_numcols - 1, pos, 2); | 157 module(m_numrows - 1, m_numcols - 1, pos, 2); |
158 module(0, m_numcols - 3, pos, 3); | 158 module(0, m_numcols - 3, pos, 3); |
159 module(0, m_numcols - 2, pos, 4); | 159 module(0, m_numcols - 2, pos, 4); |
160 module(0, m_numcols - 1, pos, 5); | 160 module(0, m_numcols - 1, pos, 5); |
161 module(1, m_numcols - 3, pos, 6); | 161 module(1, m_numcols - 3, pos, 6); |
162 module(1, m_numcols - 2, pos, 7); | 162 module(1, m_numcols - 2, pos, 7); |
163 module(1, m_numcols - 1, pos, 8); | 163 module(1, m_numcols - 1, pos, 8); |
164 } | 164 } |
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