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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 2007 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 "barcode.h" | |
24 #include "include/BC_CommonBitArray.h" | |
25 #include "include/BC_CommonBitMatrix.h" | |
26 CBC_CommonBitMatrix::CBC_CommonBitMatrix() | |
27 { | |
28 m_width = 0; | |
29 m_height = 0; | |
30 m_rowSize = 0; | |
31 m_bits = NULL; | |
32 } | |
33 void CBC_CommonBitMatrix::Init(FX_INT32 dimension) | |
34 { | |
35 m_width = dimension; | |
36 m_height = dimension; | |
37 FX_INT32 rowSize = (m_height + 31) >> 5; | |
38 m_rowSize = rowSize; | |
39 m_bits = FX_Alloc(FX_INT32, m_rowSize * m_height); | |
40 FXSYS_memset32(m_bits, 0, m_rowSize * m_height * sizeof(FX_INT32)); | |
41 } | |
42 void CBC_CommonBitMatrix::Init(FX_INT32 width, FX_INT32 height) | |
43 { | |
44 m_width = width; | |
45 m_height = height; | |
46 FX_INT32 rowSize = (width + 31) >> 5; | |
47 m_rowSize = rowSize; | |
48 m_bits = FX_Alloc(FX_INT32, m_rowSize * m_height); | |
49 FXSYS_memset32(m_bits, 0, m_rowSize * m_height * sizeof(FX_INT32)); | |
50 } | |
51 CBC_CommonBitMatrix::~CBC_CommonBitMatrix() | |
52 { | |
53 if (m_bits != NULL) { | |
54 FX_Free(m_bits); | |
55 } | |
56 m_bits = NULL; | |
57 m_height = m_width = m_rowSize = 0; | |
58 } | |
59 FX_BOOL CBC_CommonBitMatrix::Get(FX_INT32 x, FX_INT32 y) | |
60 { | |
61 FX_INT32 offset = y * m_rowSize + (x >> 5); | |
62 if (offset >= m_rowSize * m_height || offset < 0) { | |
63 return false; | |
64 } | |
65 return ((((FX_DWORD)m_bits[offset]) >> (x & 0x1f)) & 1) != 0; | |
66 } | |
67 FX_INT32* CBC_CommonBitMatrix::GetBits() | |
68 { | |
69 return m_bits; | |
70 } | |
71 void CBC_CommonBitMatrix::Set(FX_INT32 x, FX_INT32 y) | |
72 { | |
73 FX_INT32 offset = y * m_rowSize + (x >> 5); | |
74 if (offset >= m_rowSize * m_height || offset < 0) { | |
75 return; | |
76 } | |
77 m_bits[offset] |= 1 << (x & 0x1f); | |
78 } | |
79 void CBC_CommonBitMatrix::Flip(FX_INT32 x, FX_INT32 y) | |
80 { | |
81 FX_INT32 offset = y * m_rowSize + (x >> 5); | |
82 m_bits[offset] ^= 1 << (x & 0x1f); | |
83 } | |
84 void CBC_CommonBitMatrix::Clear() | |
85 { | |
86 FXSYS_memset32(m_bits, 0, m_rowSize * m_height * sizeof(FX_INT32)); | |
87 } | |
88 void CBC_CommonBitMatrix::SetRegion(FX_INT32 left, FX_INT32 top, FX_INT32 width,
FX_INT32 height, FX_INT32 &e) | |
89 { | |
90 if (top < 0 || left < 0) { | |
91 e = BCExceptionLeftAndTopMustBeNonnegative; | |
92 return; | |
93 } | |
94 if (height < 1 || width < 1) { | |
95 e = BCExceptionHeightAndWidthMustBeAtLeast1; | |
96 return; | |
97 } | |
98 FX_INT32 right = left + width; | |
99 FX_INT32 bottom = top + height; | |
100 if (m_height < bottom || m_width < right) { | |
101 e = BCExceptionRegionMustFitInsideMatrix; | |
102 return; | |
103 } | |
104 FX_INT32 y; | |
105 for (y = top; y < bottom; y++) { | |
106 FX_INT32 offset = y * m_rowSize; | |
107 FX_INT32 x; | |
108 for (x = left; x < right; x++) { | |
109 m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f); | |
110 } | |
111 } | |
112 } | |
113 CBC_CommonBitArray* CBC_CommonBitMatrix::GetRow(FX_INT32 y, CBC_CommonBitArray*
row) | |
114 { | |
115 CBC_CommonBitArray* rowArray = NULL; | |
116 if (row == NULL || row->GetSize() < m_width) { | |
117 rowArray = FX_NEW CBC_CommonBitArray(m_width); | |
118 } else { | |
119 rowArray = FX_NEW CBC_CommonBitArray(row); | |
120 } | |
121 FX_INT32 offset = y * m_rowSize; | |
122 FX_INT32 x; | |
123 for (x = 0; x < m_rowSize; x++) { | |
124 rowArray->SetBulk(x << 5, m_bits[offset + x]); | |
125 } | |
126 return rowArray; | |
127 } | |
128 void CBC_CommonBitMatrix::SetRow(FX_INT32 y, CBC_CommonBitArray* row) | |
129 { | |
130 FX_INT32 l = y * m_rowSize; | |
131 for (FX_INT32 i = 0; i < m_rowSize; i++) { | |
132 m_bits[l] = row->GetBitArray()[i]; | |
133 l++; | |
134 } | |
135 } | |
136 void CBC_CommonBitMatrix::SetCol(FX_INT32 y, CBC_CommonBitArray* col) | |
137 { | |
138 for (FX_INT32 i = 0; i < col->GetBits().GetSize(); i++) { | |
139 m_bits[i * m_rowSize + y] = col->GetBitArray()[i]; | |
140 } | |
141 } | |
142 FX_INT32 CBC_CommonBitMatrix::GetWidth() | |
143 { | |
144 return m_width; | |
145 } | |
146 FX_INT32 CBC_CommonBitMatrix::GetHeight() | |
147 { | |
148 return m_height; | |
149 } | |
150 FX_INT32 CBC_CommonBitMatrix::GetRowSize() | |
151 { | |
152 return m_rowSize; | |
153 } | |
154 FX_INT32 CBC_CommonBitMatrix::GetDimension(FX_INT32 &e) | |
155 { | |
156 if (m_width != m_height) { | |
157 e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix; | |
158 return 0; | |
159 } | |
160 return m_width; | |
161 } | |
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