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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 "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" | |
| 24 #include "xfa/src/fxbarcode/qrcode/BC_QRDataMask.h" | |
| 25 #include "xfa/src/fxbarcode/utils.h" | |
| 26 | |
| 27 static int32_t N_DATA_MASKS = 0; | |
| 28 CFX_PtrArray* CBC_QRDataMask::DATA_MASKS = NULL; | |
| 29 | |
| 30 void CBC_QRDataMask::Initialize() { | |
| 31 DATA_MASKS = new CFX_PtrArray(); | |
| 32 N_DATA_MASKS = BuildDataMasks(); | |
| 33 } | |
| 34 void CBC_QRDataMask::Finalize() { | |
| 35 Destroy(); | |
| 36 delete DATA_MASKS; | |
| 37 } | |
| 38 void CBC_QRDataMask::Destroy() { | |
| 39 int32_t i; | |
| 40 for (i = 0; i < N_DATA_MASKS; i++) { | |
| 41 CBC_QRDataMask* p = (CBC_QRDataMask*)(*DATA_MASKS)[i]; | |
| 42 if (p) { | |
| 43 delete p; | |
| 44 } | |
| 45 } | |
| 46 } | |
| 47 void CBC_QRDataMask::UnmaskBitMatirx(CBC_CommonBitMatrix* bits, | |
| 48 int32_t dimension) { | |
| 49 for (int32_t i = 0; i < dimension; i++) { | |
| 50 for (int32_t j = 0; j < dimension; j++) { | |
| 51 if (IsMasked(i, j)) { | |
| 52 bits->Flip(j, i); | |
| 53 } | |
| 54 } | |
| 55 } | |
| 56 } | |
| 57 CBC_QRDataMask* CBC_QRDataMask::ForReference(int32_t reference, int32_t& e) { | |
| 58 if (reference < 0 || reference > 7) { | |
| 59 e = BCExceptionReferenceMustBeBetween0And7; | |
| 60 BC_EXCEPTION_CHECK_ReturnValue(e, NULL); | |
| 61 } | |
| 62 return (CBC_QRDataMask*)(*DATA_MASKS)[reference]; | |
| 63 } | |
| 64 class DataMask000 : public CBC_QRDataMask { | |
| 65 public: | |
| 66 FX_BOOL IsMasked(int32_t x, int32_t y) { return ((x + y) % 2) == 0; } | |
| 67 }; | |
| 68 class DataMask001 : public CBC_QRDataMask { | |
| 69 public: | |
| 70 FX_BOOL IsMasked(int32_t x, int32_t y) { return (x % 2) == 0; } | |
| 71 }; | |
| 72 class DataMask010 : public CBC_QRDataMask { | |
| 73 public: | |
| 74 FX_BOOL IsMasked(int32_t x, int32_t y) { return y % 3 == 0; } | |
| 75 }; | |
| 76 class DataMask011 : public CBC_QRDataMask { | |
| 77 public: | |
| 78 FX_BOOL IsMasked(int32_t x, int32_t y) { return (x + y) % 3 == 0; } | |
| 79 }; | |
| 80 class DataMask100 : public CBC_QRDataMask { | |
| 81 public: | |
| 82 FX_BOOL IsMasked(int32_t x, int32_t y) { | |
| 83 return (((x >> 1) + (y / 3)) % 2) == 0; | |
| 84 } | |
| 85 }; | |
| 86 class DataMask101 : public CBC_QRDataMask { | |
| 87 public: | |
| 88 FX_BOOL IsMasked(int32_t x, int32_t y) { | |
| 89 size_t temp = x * y; | |
| 90 return (temp % 2) + (temp % 3) == 0; | |
| 91 } | |
| 92 }; | |
| 93 class DataMask110 : public CBC_QRDataMask { | |
| 94 public: | |
| 95 FX_BOOL IsMasked(int32_t x, int32_t y) { | |
| 96 size_t temp = x * y; | |
| 97 return (((temp % 2) + (temp % 3)) % 2) == 0; | |
| 98 } | |
| 99 }; | |
| 100 class DataMask111 : public CBC_QRDataMask { | |
| 101 public: | |
| 102 FX_BOOL IsMasked(int32_t x, int32_t y) { | |
| 103 return ((((x + y) % 2) + ((x * y) % 3)) % 2) == 0; | |
| 104 } | |
| 105 }; | |
| 106 int32_t CBC_QRDataMask::BuildDataMasks() { | |
| 107 DATA_MASKS->Add(new DataMask000); | |
| 108 DATA_MASKS->Add(new DataMask001); | |
| 109 DATA_MASKS->Add(new DataMask010); | |
| 110 DATA_MASKS->Add(new DataMask011); | |
| 111 DATA_MASKS->Add(new DataMask100); | |
| 112 DATA_MASKS->Add(new DataMask101); | |
| 113 DATA_MASKS->Add(new DataMask110); | |
| 114 DATA_MASKS->Add(new DataMask111); | |
| 115 return DATA_MASKS->GetSize(); | |
| 116 } | |
| 117 CBC_QRDataMask::CBC_QRDataMask() {} | |
| 118 CBC_QRDataMask::~CBC_QRDataMask() {} | |
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