OLD | NEW |
| (Empty) |
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 "xfa/src/fxbarcode/common/BC_CommonBitArray.h" | |
24 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" | |
25 #include "xfa/src/fxbarcode/utils.h" | |
26 | |
27 CBC_CommonBitMatrix::CBC_CommonBitMatrix() { | |
28 m_width = 0; | |
29 m_height = 0; | |
30 m_rowSize = 0; | |
31 m_bits = NULL; | |
32 } | |
33 void CBC_CommonBitMatrix::Init(int32_t dimension) { | |
34 m_width = dimension; | |
35 m_height = dimension; | |
36 int32_t rowSize = (m_height + 31) >> 5; | |
37 m_rowSize = rowSize; | |
38 m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height); | |
39 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); | |
40 } | |
41 void CBC_CommonBitMatrix::Init(int32_t width, int32_t height) { | |
42 m_width = width; | |
43 m_height = height; | |
44 int32_t rowSize = (width + 31) >> 5; | |
45 m_rowSize = rowSize; | |
46 m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height); | |
47 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); | |
48 } | |
49 CBC_CommonBitMatrix::~CBC_CommonBitMatrix() { | |
50 FX_Free(m_bits); | |
51 } | |
52 FX_BOOL CBC_CommonBitMatrix::Get(int32_t x, int32_t y) { | |
53 int32_t offset = y * m_rowSize + (x >> 5); | |
54 if (offset >= m_rowSize * m_height || offset < 0) { | |
55 return false; | |
56 } | |
57 return ((((FX_DWORD)m_bits[offset]) >> (x & 0x1f)) & 1) != 0; | |
58 } | |
59 int32_t* CBC_CommonBitMatrix::GetBits() { | |
60 return m_bits; | |
61 } | |
62 void CBC_CommonBitMatrix::Set(int32_t x, int32_t y) { | |
63 int32_t offset = y * m_rowSize + (x >> 5); | |
64 if (offset >= m_rowSize * m_height || offset < 0) { | |
65 return; | |
66 } | |
67 m_bits[offset] |= 1 << (x & 0x1f); | |
68 } | |
69 void CBC_CommonBitMatrix::Flip(int32_t x, int32_t y) { | |
70 int32_t offset = y * m_rowSize + (x >> 5); | |
71 m_bits[offset] ^= 1 << (x & 0x1f); | |
72 } | |
73 void CBC_CommonBitMatrix::Clear() { | |
74 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); | |
75 } | |
76 void CBC_CommonBitMatrix::SetRegion(int32_t left, | |
77 int32_t top, | |
78 int32_t width, | |
79 int32_t height, | |
80 int32_t& e) { | |
81 if (top < 0 || left < 0) { | |
82 e = BCExceptionLeftAndTopMustBeNonnegative; | |
83 return; | |
84 } | |
85 if (height < 1 || width < 1) { | |
86 e = BCExceptionHeightAndWidthMustBeAtLeast1; | |
87 return; | |
88 } | |
89 int32_t right = left + width; | |
90 int32_t bottom = top + height; | |
91 if (m_height < bottom || m_width < right) { | |
92 e = BCExceptionRegionMustFitInsideMatrix; | |
93 return; | |
94 } | |
95 int32_t y; | |
96 for (y = top; y < bottom; y++) { | |
97 int32_t offset = y * m_rowSize; | |
98 int32_t x; | |
99 for (x = left; x < right; x++) { | |
100 m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f); | |
101 } | |
102 } | |
103 } | |
104 CBC_CommonBitArray* CBC_CommonBitMatrix::GetRow(int32_t y, | |
105 CBC_CommonBitArray* row) { | |
106 CBC_CommonBitArray* rowArray = NULL; | |
107 if (row == NULL || row->GetSize() < m_width) { | |
108 rowArray = new CBC_CommonBitArray(m_width); | |
109 } else { | |
110 rowArray = new CBC_CommonBitArray(row); | |
111 } | |
112 int32_t offset = y * m_rowSize; | |
113 int32_t x; | |
114 for (x = 0; x < m_rowSize; x++) { | |
115 rowArray->SetBulk(x << 5, m_bits[offset + x]); | |
116 } | |
117 return rowArray; | |
118 } | |
119 void CBC_CommonBitMatrix::SetRow(int32_t y, CBC_CommonBitArray* row) { | |
120 int32_t l = y * m_rowSize; | |
121 for (int32_t i = 0; i < m_rowSize; i++) { | |
122 m_bits[l] = row->GetBitArray()[i]; | |
123 l++; | |
124 } | |
125 } | |
126 void CBC_CommonBitMatrix::SetCol(int32_t y, CBC_CommonBitArray* col) { | |
127 for (int32_t i = 0; i < col->GetBits().GetSize(); i++) { | |
128 m_bits[i * m_rowSize + y] = col->GetBitArray()[i]; | |
129 } | |
130 } | |
131 int32_t CBC_CommonBitMatrix::GetWidth() { | |
132 return m_width; | |
133 } | |
134 int32_t CBC_CommonBitMatrix::GetHeight() { | |
135 return m_height; | |
136 } | |
137 int32_t CBC_CommonBitMatrix::GetRowSize() { | |
138 return m_rowSize; | |
139 } | |
140 int32_t CBC_CommonBitMatrix::GetDimension(int32_t& e) { | |
141 if (m_width != m_height) { | |
142 e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix; | |
143 return 0; | |
144 } | |
145 return m_width; | |
146 } | |
OLD | NEW |