1 // Copyright 2014 The PDFium Authors
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 2006 Jeremias Maerki
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 "fxbarcode/datamatrix/BC_SymbolInfo.h"
24
25 #include <iterator>
26
27 #include "fxbarcode/common/BC_CommonBitMatrix.h"
28 #include "fxbarcode/datamatrix/BC_DataMatrixSymbolInfo144.h"
29 #include "fxbarcode/datamatrix/BC_Encoder.h"
30 #include "third_party/base/notreached.h"
31
32 namespace {
33
34 constexpr size_t kSymbolsCount = 30;
35
36 CBC_SymbolInfo* g_symbols[kSymbolsCount] = {
37 nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
38 nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
39 nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
40 nullptr, nullptr, nullptr, nullptr, nullptr, nullptr};
41
42 constexpr CBC_SymbolInfo::Data kSymbolData[] = {
43 {3, 5, 3, 5, 8, 8, 1}, {5, 7, 5, 7, 10, 10, 1},
44 {5, 7, 5, 7, 16, 6, 1}, {8, 10, 8, 10, 12, 12, 1},
45 {10, 11, 10, 11, 14, 6, 2}, {12, 12, 12, 12, 14, 14, 1},
46 {16, 14, 16, 14, 24, 10, 1}, {18, 14, 18, 14, 16, 16, 1},
47 {22, 18, 22, 18, 18, 18, 1}, {22, 18, 22, 18, 16, 10, 2},
48 {30, 20, 30, 20, 20, 20, 1}, {32, 24, 32, 24, 16, 14, 2},
49 {36, 24, 36, 24, 22, 22, 1}, {44, 28, 44, 28, 24, 24, 1},
50 {49, 28, 49, 28, 22, 14, 2}, {62, 36, 62, 36, 14, 14, 4},
51 {86, 42, 86, 42, 16, 16, 4}, {114, 48, 114, 48, 18, 18, 4},
52 {144, 56, 144, 56, 20, 20, 4}, {174, 68, 174, 68, 22, 22, 4},
53 {204, 84, 102, 42, 24, 24, 4}, {280, 112, 140, 56, 14, 14, 16},
54 {368, 144, 92, 36, 16, 16, 16}, {456, 192, 114, 48, 18, 18, 16},
55 {576, 224, 144, 56, 20, 20, 16}, {696, 272, 174, 68, 22, 22, 16},
56 {816, 336, 136, 56, 24, 24, 16}, {1050, 408, 175, 68, 18, 18, 36},
57 {1304, 496, 163, 62, 20, 20, 36}};
58
59 constexpr size_t kSymbolDataSize = std::size(kSymbolData);
60 static_assert(kSymbolDataSize + 1 == kSymbolsCount, "Wrong kSymbolDataSize");
61
62 } // namespace
63
64 // static
Initialize()65 void CBC_SymbolInfo::Initialize() {
66 for (size_t i = 0; i < kSymbolDataSize; ++i)
67 g_symbols[i] = new CBC_SymbolInfo(&kSymbolData[i]);
68 g_symbols[kSymbolDataSize] = new CBC_DataMatrixSymbolInfo144();
69 }
70
71 // static
Finalize()72 void CBC_SymbolInfo::Finalize() {
73 for (size_t i = 0; i < kSymbolsCount; ++i) {
74 delete g_symbols[i];
75 g_symbols[i] = nullptr;
76 }
77 }
78
CBC_SymbolInfo(const Data * data)79 CBC_SymbolInfo::CBC_SymbolInfo(const Data* data) : data_(data) {}
80
81 CBC_SymbolInfo::~CBC_SymbolInfo() = default;
82
Lookup(size_t data_codewords,bool allow_rectangular)83 const CBC_SymbolInfo* CBC_SymbolInfo::Lookup(size_t data_codewords,
84 bool allow_rectangular) {
85 for (size_t i = 0; i < kSymbolsCount; ++i) {
86 CBC_SymbolInfo* symbol = g_symbols[i];
87 if (symbol->is_rectangular() && !allow_rectangular)
88 continue;
89
90 if (data_codewords <= symbol->data_capacity())
91 return symbol;
92 }
93 return nullptr;
94 }
95
GetHorizontalDataRegions() const96 int32_t CBC_SymbolInfo::GetHorizontalDataRegions() const {
97 switch (data_->data_regions) {
98 case 1:
99 return 1;
100 case 2:
101 return 2;
102 case 4:
103 return 2;
104 case 16:
105 return 4;
106 case 36:
107 return 6;
108 default:
109 NOTREACHED();
110 return 0;
111 }
112 }
113
GetVerticalDataRegions() const114 int32_t CBC_SymbolInfo::GetVerticalDataRegions() const {
115 switch (data_->data_regions) {
116 case 1:
117 return 1;
118 case 2:
119 return 1;
120 case 4:
121 return 2;
122 case 16:
123 return 4;
124 case 36:
125 return 6;
126 default:
127 NOTREACHED();
128 return 0;
129 }
130 }
131
GetSymbolDataWidth() const132 int32_t CBC_SymbolInfo::GetSymbolDataWidth() const {
133 return GetHorizontalDataRegions() * data_->matrix_width;
134 }
135
GetSymbolDataHeight() const136 int32_t CBC_SymbolInfo::GetSymbolDataHeight() const {
137 return GetVerticalDataRegions() * data_->matrix_height;
138 }
139
GetSymbolWidth() const140 int32_t CBC_SymbolInfo::GetSymbolWidth() const {
141 return GetSymbolDataWidth() + (GetHorizontalDataRegions() * 2);
142 }
143
GetSymbolHeight() const144 int32_t CBC_SymbolInfo::GetSymbolHeight() const {
145 return GetSymbolDataHeight() + (GetVerticalDataRegions() * 2);
146 }
147
GetInterleavedBlockCount() const148 size_t CBC_SymbolInfo::GetInterleavedBlockCount() const {
149 return data_->data_capacity / data_->rs_block_data;
150 }
151
GetDataLengthForInterleavedBlock() const152 size_t CBC_SymbolInfo::GetDataLengthForInterleavedBlock() const {
153 return data_->rs_block_data;
154 }
155
GetErrorLengthForInterleavedBlock() const156 size_t CBC_SymbolInfo::GetErrorLengthForInterleavedBlock() const {
157 return data_->rs_block_error;
158 }
159