xfa/src/fxbarcode/datamatrix/BC_ErrorCorrection.cpp - Issue 1803723002: Move xfa/src up to xfa/.

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Issue 1803723002: Move xfa/src up to xfa/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master

Patch Set: Rebase to master Created 4 years, 9 months ago

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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 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 "xfa/src/fxbarcode/datamatrix/BC_Encoder.h"

24 #include "xfa/src/fxbarcode/datamatrix/BC_ErrorCorrection.h"

25 #include "xfa/src/fxbarcode/datamatrix/BC_SymbolInfo.h"

26 #include "xfa/src/fxbarcode/datamatrix/BC_SymbolShapeHint.h"

27

28 int32_t CBC_ErrorCorrection::FACTOR_SETS[] = {5, 7, 10, 11, 12, 14, 18, 20,

29 24, 28, 36, 42, 48, 56, 62, 68};

30 int32_t CBC_ErrorCorrection::FACTORS[][100] = {

31 {228, 48, 15, 111, 62},

32 {23, 68, 144, 134, 240, 92, 254},

33 {28, 24, 185, 166, 223, 248, 116, 255, 110, 61},

34 {175, 138, 205, 12, 194, 168, 39, 245, 60, 97, 120},

35 {41, 153, 158, 91, 61, 42, 142, 213, 97, 178, 100, 242},

36 {156, 97, 192, 252, 95, 9, 157, 119, 138, 45, 18, 186, 83, 185},

37 {83, 195, 100, 39, 188, 75, 66, 61, 241, 213, 109, 129, 94, 254, 225, 48,

38 90, 188},

39 {15, 195, 244, 9, 233, 71, 168, 2, 188, 160, 153, 145, 253, 79, 108, 82, 27,

40 174, 186, 172},

41 {52, 190, 88, 205, 109, 39, 176, 21, 155, 197, 251, 223, 155, 21, 5, 172,

42 254, 124, 12, 181, 184, 96, 50, 193},

43 {211, 231, 43, 97, 71, 96, 103, 174, 37, 151, 170, 53, 75, 34, 249, 121, 17,

44 138, 110, 213, 141, 136, 120, 151, 233, 168, 93, 255},

45 {245, 127, 242, 218, 130, 250, 162, 181, 102, 120, 84, 179, 220, 251, 80,

46 182, 229, 18, 2, 4, 68, 33, 101, 137, 95, 119, 115, 44, 175, 184, 59, 25,

47 225, 98, 81, 112},

48 {77, 193, 137, 31, 19, 38, 22, 153, 247, 105, 122, 2, 245, 133, 242, 8, 175,

49 95, 100, 9, 167, 105, 214, 111, 57, 121, 21, 1, 253, 57, 54, 101, 248, 202,

50 69, 50, 150, 177, 226, 5, 9, 5},

51 {245, 132, 172, 223, 96, 32, 117, 22, 238, 133, 238, 231, 205, 188, 237, 87,

52 191, 106, 16, 147, 118, 23, 37, 90, 170, 205, 131, 88, 120, 100, 66, 138,

53 186, 240, 82, 44, 176, 87, 187, 147, 160, 175, 69, 213, 92, 253, 225, 19},

54 {175, 9, 223, 238, 12, 17, 220, 208, 100, 29, 175, 170, 230, 192, 215, 235,

55 150, 159, 36, 223, 38, 200, 132, 54, 228, 146, 218, 234, 117, 203, 29, 232,

56 144, 238, 22, 150, 201, 117, 62, 207, 164, 13, 137, 245, 127, 67, 247, 28,

57 155, 43, 203, 107, 233, 53, 143, 46},

58 {242, 93, 169, 50, 144, 210, 39, 118, 202, 188, 201, 189, 143, 108, 196, 37,

59 185, 112, 134, 230, 245, 63, 197, 190, 250, 106, 185, 221, 175, 64, 114,

60 71, 161, 44, 147, 6, 27, 218, 51, 63, 87, 10, 40, 130, 188, 17, 163, 31,

61 176, 170, 4, 107, 232, 7, 94, 166, 224, 124, 86, 47, 11, 204},

62 {220, 228, 173, 89, 251, 149, 159, 56, 89, 33, 147, 244, 154, 36, 73, 127,

63 213, 136, 248, 180, 234, 197, 158, 177, 68, 122, 93, 213, 15, 160, 227,

64 236, 66, 139, 153, 185, 202, 167, 179, 25, 220, 232, 96, 210, 231, 136,

65 223, 239, 181, 241, 59, 52, 172, 25, 49, 232, 211, 189, 64, 54, 108, 153,

66 132, 63, 96, 103, 82, 186}};

67 int32_t CBC_ErrorCorrection::MODULO_VALUE = 0x12D;

68 int32_t CBC_ErrorCorrection::LOG[256] = {0};

69 int32_t CBC_ErrorCorrection::ALOG[256] = {0};

70 void CBC_ErrorCorrection::Initialize() {

71 int32_t p = 1;

72 for (int32_t i = 0; i < 255; i++) {

73 ALOG[i] = p;

74 LOG[p] = i;

75 p <<= 1;

76 if (p >= 256) {

77 p ^= MODULO_VALUE;

78 }

79 }

80 }

81 void CBC_ErrorCorrection::Finalize() {}

82 CBC_ErrorCorrection::CBC_ErrorCorrection() {}

83 CBC_ErrorCorrection::~CBC_ErrorCorrection() {}

84 CFX_WideString CBC_ErrorCorrection::encodeECC200(CFX_WideString codewords,

85 CBC_SymbolInfo* symbolInfo,

86 int32_t& e) {

87 if (codewords.GetLength() != symbolInfo->m_dataCapacity) {

88 e = BCExceptionIllegalArgument;

89 return (FX_WCHAR*)"";

90 }

91 CFX_WideString sb;

92 sb += codewords;

93 int32_t blockCount = symbolInfo->getInterleavedBlockCount();

94 if (blockCount == 1) {

95 CFX_WideString ecc =

96 createECCBlock(codewords, symbolInfo->m_errorCodewords, e);

97 BC_EXCEPTION_CHECK_ReturnValue(e, (FX_WCHAR*)"");

98 sb += ecc;

99 } else {

100 CFX_Int32Array dataSizes;

101 dataSizes.SetSize(blockCount);

102 CFX_Int32Array errorSizes;

103 errorSizes.SetSize(blockCount);

104 CFX_Int32Array startPos;

105 startPos.SetSize(blockCount);

106 for (int32_t i = 0; i < blockCount; i++) {

107 dataSizes[i] = symbolInfo->getDataLengthForInterleavedBlock(i + 1);

108 errorSizes[i] = symbolInfo->getErrorLengthForInterleavedBlock(i + 1);

109 startPos[i] = 0;

110 if (i > 0) {

111 startPos[i] = startPos[i - 1] + dataSizes[i];

112 }

113 }

114 for (int32_t block = 0; block < blockCount; block++) {

115 CFX_WideString temp;

116 for (int32_t d = block; d < symbolInfo->m_dataCapacity; d += blockCount) {

117 temp += (FX_WCHAR)codewords.GetAt(d);

118 }

119 CFX_WideString ecc = createECCBlock(temp, errorSizes[block], e);

120 BC_EXCEPTION_CHECK_ReturnValue(e, (FX_WCHAR*)"");

121 int32_t pos = 0;

122 for (int32_t l = block; l < errorSizes[block] * blockCount;

123 l += blockCount) {

124 sb.SetAt(symbolInfo->m_dataCapacity + l, ecc.GetAt(pos++));

125 }

126 }

127 }

128 return sb;

129 }

130 CFX_WideString CBC_ErrorCorrection::createECCBlock(CFX_WideString codewords,

131 int32_t numECWords,

132 int32_t& e) {

133 return createECCBlock(codewords, 0, codewords.GetLength(), numECWords, e);

134 }

135 CFX_WideString CBC_ErrorCorrection::createECCBlock(CFX_WideString codewords,

136 int32_t start,

137 int32_t len,

138 int32_t numECWords,

139 int32_t& e) {

140 int32_t table = -1;

141 for (int32_t i = 0; i < sizeof(FACTOR_SETS) / sizeof(int32_t); i++) {

142 if (FACTOR_SETS[i] == numECWords) {

143 table = i;

144 break;

145 }

146 }

147 if (table < 0) {

148 e = BCExceptionIllegalArgument;

149 return (FX_WCHAR*)"";

150 }

151 FX_WORD* ecc = FX_Alloc(FX_WORD, numECWords);

152 FXSYS_memset(ecc, 0, numECWords * sizeof(FX_WORD));

153 for (int32_t l = start; l < start + len; l++) {

154 FX_WORD m = ecc[numECWords - 1] ^ codewords.GetAt(l);

155 for (int32_t k = numECWords - 1; k > 0; k--) {

156 if (m != 0 && FACTORS[table][k] != 0) {

157 ecc[k] = (FX_WORD)(ecc[k - 1] ^

158 ALOG[(LOG[m] + LOG[FACTORS[table][k]]) % 255]);

159 } else {

160 ecc[k] = ecc[k - 1];

161 }

162 }

163 if (m != 0 && FACTORS[table][0] != 0) {

164 ecc[0] = (FX_WORD)ALOG[(LOG[m] + LOG[FACTORS[table][0]]) % 255];

165 } else {

166 ecc[0] = 0;

167 }

168 }

169 CFX_WideString strecc;

170 for (int32_t j = 0; j < numECWords; j++) {

171 strecc += (FX_WCHAR)ecc[numECWords - j - 1];

172 }

173 FX_Free(ecc);

174 return strecc;

175 }

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