summaryrefslogtreecommitdiff
path: root/fxbarcode/common/BC_CommonBitMatrix.cpp
blob: fe3546156e262293b6c7a6de115c4ca27bd4df2e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
// Original code is licensed as follows:
/*
 * Copyright 2007 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "fxbarcode/common/BC_CommonBitArray.h"
#include "fxbarcode/common/BC_CommonBitMatrix.h"
#include "fxbarcode/utils.h"

CBC_CommonBitMatrix::CBC_CommonBitMatrix() {}

void CBC_CommonBitMatrix::Init(int32_t dimension) {
  m_width = dimension;
  m_height = dimension;
  int32_t rowSize = (m_height + 31) >> 5;
  m_rowSize = rowSize;
  m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height);
  memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
}

void CBC_CommonBitMatrix::Init(int32_t width, int32_t height) {
  m_width = width;
  m_height = height;
  int32_t rowSize = (width + 31) >> 5;
  m_rowSize = rowSize;
  m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height);
  memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
}

CBC_CommonBitMatrix::~CBC_CommonBitMatrix() {
  FX_Free(m_bits);
}

bool CBC_CommonBitMatrix::Get(int32_t x, int32_t y) const {
  int32_t offset = y * m_rowSize + (x >> 5);
  if (offset >= m_rowSize * m_height || offset < 0)
    return false;
  return ((((uint32_t)m_bits[offset]) >> (x & 0x1f)) & 1) != 0;
}

int32_t* CBC_CommonBitMatrix::GetBits() {
  return m_bits;
}

void CBC_CommonBitMatrix::Set(int32_t x, int32_t y) {
  int32_t offset = y * m_rowSize + (x >> 5);
  if (offset >= m_rowSize * m_height || offset < 0)
    return;
  m_bits[offset] |= 1 << (x & 0x1f);
}

void CBC_CommonBitMatrix::Flip(int32_t x, int32_t y) {
  int32_t offset = y * m_rowSize + (x >> 5);
  m_bits[offset] ^= 1 << (x & 0x1f);
}

void CBC_CommonBitMatrix::Clear() {
  memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
}

bool CBC_CommonBitMatrix::SetRegion(int32_t left,
                                    int32_t top,
                                    int32_t width,
                                    int32_t height) {
  if (top < 0 || left < 0 || height < 1 || width < 1)
    return false;

  int32_t right = left + width;
  int32_t bottom = top + height;
  if (m_height < bottom || m_width < right)
    return false;

  for (int32_t y = top; y < bottom; y++) {
    int32_t offset = y * m_rowSize;
    for (int32_t x = left; x < right; x++)
      m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f);
  }
  return true;
}

CBC_CommonBitArray* CBC_CommonBitMatrix::GetRow(int32_t y,
                                                CBC_CommonBitArray* row) {
  CBC_CommonBitArray* rowArray = nullptr;
  if (!row || static_cast<int32_t>(row->GetSize()) < m_width) {
    rowArray = new CBC_CommonBitArray(m_width);
  } else {
    rowArray = new CBC_CommonBitArray(row);
  }
  int32_t offset = y * m_rowSize;
  for (int32_t x = 0; x < m_rowSize; x++)
    rowArray->SetBulk(x << 5, m_bits[offset + x]);
  return rowArray;
}

void CBC_CommonBitMatrix::SetRow(int32_t y, CBC_CommonBitArray* row) {
  int32_t l = y * m_rowSize;
  for (int32_t i = 0; i < m_rowSize; i++) {
    m_bits[l] = row->GetBitArray()[i];
    l++;
  }
}

void CBC_CommonBitMatrix::SetCol(int32_t y, CBC_CommonBitArray* col) {
  for (size_t i = 0; i < col->GetBits().size(); ++i)
    m_bits[i * m_rowSize + y] = col->GetBitArray()[i];
}

int32_t CBC_CommonBitMatrix::GetWidth() const {
  return m_width;
}
int32_t CBC_CommonBitMatrix::GetHeight() const {
  return m_height;
}
int32_t CBC_CommonBitMatrix::GetRowSize() const {
  return m_rowSize;
}