1ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann// Copyright 2014 PDFium Authors. All rights reserved.
2ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann// Use of this source code is governed by a BSD-style license that can be
3ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann// found in the LICENSE file.
4ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann
5ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann// Original code is licensed as follows:
7ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann/*
8ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * Copyright 2007 ZXing authors
9ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann *
10ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * Licensed under the Apache License, Version 2.0 (the "License");
11ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * you may not use this file except in compliance with the License.
12ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * You may obtain a copy of the License at
13ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann *
14ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann *      http://www.apache.org/licenses/LICENSE-2.0
15ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann *
16ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * Unless required by applicable law or agreed to in writing, software
17ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * distributed under the License is distributed on an "AS IS" BASIS,
18ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * See the License for the specific language governing permissions and
20ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann * limitations under the License.
21ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann */
22ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann
23ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann#include "xfa/src/fxbarcode/barcode.h"
24ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann#include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
25ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann#include "BC_QRDataMask.h"
26ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannstatic int32_t N_DATA_MASKS = 0;
27ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. MoltmannCFX_PtrArray* CBC_QRDataMask::DATA_MASKS = NULL;
28ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannvoid CBC_QRDataMask::Initialize() {
29ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS = new CFX_PtrArray();
30ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  N_DATA_MASKS = BuildDataMasks();
31ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann}
32ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannvoid CBC_QRDataMask::Finalize() {
33ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  Destroy();
34ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  delete DATA_MASKS;
35ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann}
36ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannvoid CBC_QRDataMask::Destroy() {
37ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  int32_t i;
38ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  for (i = 0; i < N_DATA_MASKS; i++) {
39ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    CBC_QRDataMask* p = (CBC_QRDataMask*)(*DATA_MASKS)[i];
40ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    if (p) {
41ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann      delete p;
42ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    }
43ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  }
44ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann}
45ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannvoid CBC_QRDataMask::UnmaskBitMatirx(CBC_CommonBitMatrix* bits,
46ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann                                     int32_t dimension) {
47ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  for (int32_t i = 0; i < dimension; i++) {
48ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    for (int32_t j = 0; j < dimension; j++) {
49ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann      if (IsMasked(i, j)) {
50ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann        bits->Flip(j, i);
51ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann      }
52ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    }
53ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  }
54ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann}
55ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. MoltmannCBC_QRDataMask* CBC_QRDataMask::ForReference(int32_t reference, int32_t& e) {
56ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  if (reference < 0 || reference > 7) {
57ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    e = BCExceptionReferenceMustBeBetween0And7;
58ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
59ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  }
60ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  return (CBC_QRDataMask*)(*DATA_MASKS)[reference];
61ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann}
62ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannclass DataMask000 : public CBC_QRDataMask {
63ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann public:
64ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  FX_BOOL IsMasked(int32_t x, int32_t y) { return ((x + y) % 2) == 0; }
65ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann};
66ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannclass DataMask001 : public CBC_QRDataMask {
67ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann public:
68ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  FX_BOOL IsMasked(int32_t x, int32_t y) { return (x % 2) == 0; }
69ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann};
70ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannclass DataMask010 : public CBC_QRDataMask {
71ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann public:
72ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  FX_BOOL IsMasked(int32_t x, int32_t y) { return y % 3 == 0; }
73ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann};
74ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannclass DataMask011 : public CBC_QRDataMask {
75ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann public:
76ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  FX_BOOL IsMasked(int32_t x, int32_t y) { return (x + y) % 3 == 0; }
77ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann};
78ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannclass DataMask100 : public CBC_QRDataMask {
79ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann public:
80ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  FX_BOOL IsMasked(int32_t x, int32_t y) {
81ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    return (((x >> 1) + (y / 3)) % 2) == 0;
82ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  }
83ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann};
84ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannclass DataMask101 : public CBC_QRDataMask {
85ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann public:
86ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  FX_BOOL IsMasked(int32_t x, int32_t y) {
87ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    size_t temp = x * y;
88ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    return (temp % 2) + (temp % 3) == 0;
89ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  }
90ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann};
91ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannclass DataMask110 : public CBC_QRDataMask {
92ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann public:
93ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  FX_BOOL IsMasked(int32_t x, int32_t y) {
94ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    size_t temp = x * y;
95ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    return (((temp % 2) + (temp % 3)) % 2) == 0;
96ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  }
97ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann};
98ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannclass DataMask111 : public CBC_QRDataMask {
99ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann public:
100ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  FX_BOOL IsMasked(int32_t x, int32_t y) {
101ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann    return ((((x + y) % 2) + ((x * y) % 3)) % 2) == 0;
102ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  }
103ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann};
104ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmannint32_t CBC_QRDataMask::BuildDataMasks() {
105ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS->Add(new DataMask000);
106ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS->Add(new DataMask001);
107ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS->Add(new DataMask010);
108ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS->Add(new DataMask011);
109ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS->Add(new DataMask100);
110ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS->Add(new DataMask101);
111ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS->Add(new DataMask110);
112ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  DATA_MASKS->Add(new DataMask111);
113ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann  return DATA_MASKS->GetSize();
114ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. Moltmann}
115ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. MoltmannCBC_QRDataMask::CBC_QRDataMask() {}
116ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4Philip P. MoltmannCBC_QRDataMask::~CBC_QRDataMask() {}
117