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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 // Original code is licensed as follows: | 6 // Original code is licensed as follows: |
| 7 /* | 7 /* |
| 8 * Copyright 2008 ZXing authors | 8 * Copyright 2008 ZXing authors |
| 9 * | 9 * |
| 10 * Licensed under the Apache License, Version 2.0 (the "License"); | 10 * Licensed under the Apache License, Version 2.0 (the "License"); |
| 11 * you may not use this file except in compliance with 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 | 12 * You may obtain a copy of the License at |
| 13 * | 13 * |
| 14 * http://www.apache.org/licenses/LICENSE-2.0 | 14 * http://www.apache.org/licenses/LICENSE-2.0 |
| 15 * | 15 * |
| 16 * Unless required by applicable law or agreed to in writing, software | 16 * Unless required by applicable law or agreed to in writing, software |
| 17 * distributed under the License is distributed on an "AS IS" BASIS, | 17 * distributed under the License is distributed on an "AS IS" BASIS, |
| 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 19 * See the License for the specific language governing permissions and | 19 * See the License for the specific language governing permissions and |
| 20 * limitations under the License. | 20 * limitations under the License. |
| 21 */ | 21 */ |
| 22 | 22 |
| 23 #include "../barcode.h" | 23 #include "../barcode.h" |
| 24 #include "../BC_Reader.h" | 24 #include "../BC_Reader.h" |
| 25 #include "../common/BC_CommonBitArray.h" | 25 #include "../common/BC_CommonBitArray.h" |
| 26 #include "BC_OneDReader.h" | 26 #include "BC_OneDReader.h" |
| 27 #include "BC_OnedCode39Reader.h" | 27 #include "BC_OnedCode39Reader.h" |
| 28 FX_LPCSTR CBC_OnedCode39Reader::ALPHABET_STRING = "0123456789ABCDEFGHIJKLMNOPQRS
TUVWXYZ-. *$/+%"; | 28 FX_LPCSTR CBC_OnedCode39Reader::ALPHABET_STRING = "0123456789ABCDEFGHIJKLMNOPQRS
TUVWXYZ-. *$/+%"; |
| 29 FX_LPCSTR CBC_OnedCode39Reader::CHECKSUM_STRING = "0123456789ABCDEFGHIJKLMNOPQRS
TUVWXYZ-. $/+%"; | 29 FX_LPCSTR CBC_OnedCode39Reader::CHECKSUM_STRING = "0123456789ABCDEFGHIJKLMNOPQRS
TUVWXYZ-. $/+%"; |
| 30 const FX_INT32 CBC_OnedCode39Reader::CHARACTER_ENCODINGS[44] = { | 30 const int32_t CBC_OnedCode39Reader::CHARACTER_ENCODINGS[44] = { |
| 31 0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, | 31 0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, |
| 32 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, | 32 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, |
| 33 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, | 33 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, |
| 34 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, | 34 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, |
| 35 0x0A8, 0x0A2, 0x08A, 0x02A | 35 0x0A8, 0x0A2, 0x08A, 0x02A |
| 36 }; | 36 }; |
| 37 const FX_INT32 CBC_OnedCode39Reader::ASTERISK_ENCODING = 0x094; | 37 const int32_t CBC_OnedCode39Reader::ASTERISK_ENCODING = 0x094; |
| 38 CBC_OnedCode39Reader::CBC_OnedCode39Reader(): m_extendedMode(FALSE), m_usingChec
kDigit(FALSE) | 38 CBC_OnedCode39Reader::CBC_OnedCode39Reader(): m_extendedMode(FALSE), m_usingChec
kDigit(FALSE) |
| 39 { | 39 { |
| 40 } | 40 } |
| 41 CBC_OnedCode39Reader::CBC_OnedCode39Reader(FX_BOOL usingCheckDigit) | 41 CBC_OnedCode39Reader::CBC_OnedCode39Reader(FX_BOOL usingCheckDigit) |
| 42 { | 42 { |
| 43 m_usingCheckDigit = usingCheckDigit; | 43 m_usingCheckDigit = usingCheckDigit; |
| 44 m_extendedMode = FALSE; | 44 m_extendedMode = FALSE; |
| 45 } | 45 } |
| 46 CBC_OnedCode39Reader::CBC_OnedCode39Reader(FX_BOOL usingCheckDigit, FX_BOOL exte
ndedMode) | 46 CBC_OnedCode39Reader::CBC_OnedCode39Reader(FX_BOOL usingCheckDigit, FX_BOOL exte
ndedMode) |
| 47 { | 47 { |
| 48 m_extendedMode = extendedMode; | 48 m_extendedMode = extendedMode; |
| 49 m_usingCheckDigit = usingCheckDigit; | 49 m_usingCheckDigit = usingCheckDigit; |
| 50 } | 50 } |
| 51 CBC_OnedCode39Reader::~CBC_OnedCode39Reader() | 51 CBC_OnedCode39Reader::~CBC_OnedCode39Reader() |
| 52 { | 52 { |
| 53 } | 53 } |
| 54 CFX_ByteString CBC_OnedCode39Reader::DecodeRow(FX_INT32 rowNumber, CBC_CommonBit
Array *row, FX_INT32 hints, FX_INT32 &e) | 54 CFX_ByteString CBC_OnedCode39Reader::DecodeRow(int32_t rowNumber, CBC_CommonBitA
rray *row, int32_t hints, int32_t &e) |
| 55 { | 55 { |
| 56 CFX_Int32Array *start = FindAsteriskPattern(row, e); | 56 CFX_Int32Array *start = FindAsteriskPattern(row, e); |
| 57 BC_EXCEPTION_CHECK_ReturnValue(e, ""); | 57 BC_EXCEPTION_CHECK_ReturnValue(e, ""); |
| 58 FX_INT32 nextStart = (*start)[1]; | 58 int32_t nextStart = (*start)[1]; |
| 59 if(start != NULL) { | 59 if(start != NULL) { |
| 60 delete start; | 60 delete start; |
| 61 start = NULL; | 61 start = NULL; |
| 62 } | 62 } |
| 63 FX_INT32 end = row->GetSize(); | 63 int32_t end = row->GetSize(); |
| 64 while (nextStart < end && !row->Get(nextStart)) { | 64 while (nextStart < end && !row->Get(nextStart)) { |
| 65 nextStart++; | 65 nextStart++; |
| 66 } | 66 } |
| 67 CFX_ByteString result; | 67 CFX_ByteString result; |
| 68 CFX_Int32Array counters; | 68 CFX_Int32Array counters; |
| 69 counters.SetSize(9); | 69 counters.SetSize(9); |
| 70 FX_CHAR decodedChar; | 70 FX_CHAR decodedChar; |
| 71 FX_INT32 lastStart; | 71 int32_t lastStart; |
| 72 do { | 72 do { |
| 73 RecordPattern(row, nextStart, &counters, e); | 73 RecordPattern(row, nextStart, &counters, e); |
| 74 BC_EXCEPTION_CHECK_ReturnValue(e, ""); | 74 BC_EXCEPTION_CHECK_ReturnValue(e, ""); |
| 75 FX_INT32 pattern = ToNarrowWidePattern(&counters); | 75 int32_t pattern = ToNarrowWidePattern(&counters); |
| 76 if (pattern < 0) { | 76 if (pattern < 0) { |
| 77 e = BCExceptionNotFound; | 77 e = BCExceptionNotFound; |
| 78 return ""; | 78 return ""; |
| 79 } | 79 } |
| 80 decodedChar = PatternToChar(pattern, e); | 80 decodedChar = PatternToChar(pattern, e); |
| 81 BC_EXCEPTION_CHECK_ReturnValue(e, ""); | 81 BC_EXCEPTION_CHECK_ReturnValue(e, ""); |
| 82 result += decodedChar; | 82 result += decodedChar; |
| 83 lastStart = nextStart; | 83 lastStart = nextStart; |
| 84 for (FX_INT32 i = 0; i < counters.GetSize(); i++) { | 84 for (int32_t i = 0; i < counters.GetSize(); i++) { |
| 85 nextStart += counters[i]; | 85 nextStart += counters[i]; |
| 86 } | 86 } |
| 87 while (nextStart < end && !row->Get(nextStart)) { | 87 while (nextStart < end && !row->Get(nextStart)) { |
| 88 nextStart++; | 88 nextStart++; |
| 89 } | 89 } |
| 90 } while (decodedChar != '*'); | 90 } while (decodedChar != '*'); |
| 91 result = result.Mid(0, result.GetLength() - 1); | 91 result = result.Mid(0, result.GetLength() - 1); |
| 92 FX_INT32 lastPatternSize = 0; | 92 int32_t lastPatternSize = 0; |
| 93 for (FX_INT32 j = 0; j < counters.GetSize(); j++) { | 93 for (int32_t j = 0; j < counters.GetSize(); j++) { |
| 94 lastPatternSize += counters[j]; | 94 lastPatternSize += counters[j]; |
| 95 } | 95 } |
| 96 FX_INT32 whiteSpaceAfterEnd = nextStart - lastStart - lastPatternSize; | 96 int32_t whiteSpaceAfterEnd = nextStart - lastStart - lastPatternSize; |
| 97 if(m_usingCheckDigit) { | 97 if(m_usingCheckDigit) { |
| 98 FX_INT32 max = result.GetLength() - 1; | 98 int32_t max = result.GetLength() - 1; |
| 99 FX_INT32 total = 0; | 99 int32_t total = 0; |
| 100 FX_INT32 len = (FX_INT32)strlen(ALPHABET_STRING); | 100 int32_t len = (int32_t)strlen(ALPHABET_STRING); |
| 101 for (FX_INT32 k = 0; k < max; k++) { | 101 for (int32_t k = 0; k < max; k++) { |
| 102 for (FX_INT32 j = 0; j < len; j++) | 102 for (int32_t j = 0; j < len; j++) |
| 103 if (ALPHABET_STRING[j] == result[k]) { | 103 if (ALPHABET_STRING[j] == result[k]) { |
| 104 total += j; | 104 total += j; |
| 105 } | 105 } |
| 106 } | 106 } |
| 107 if (result[max] != (ALPHABET_STRING)[total % 43]) { | 107 if (result[max] != (ALPHABET_STRING)[total % 43]) { |
| 108 e = BCExceptionChecksumException; | 108 e = BCExceptionChecksumException; |
| 109 return ""; | 109 return ""; |
| 110 } | 110 } |
| 111 result = result.Mid(0, result.GetLength() - 1); | 111 result = result.Mid(0, result.GetLength() - 1); |
| 112 } | 112 } |
| 113 if (result.GetLength() == 0) { | 113 if (result.GetLength() == 0) { |
| 114 e = BCExceptionNotFound; | 114 e = BCExceptionNotFound; |
| 115 return ""; | 115 return ""; |
| 116 } | 116 } |
| 117 if(m_extendedMode) { | 117 if(m_extendedMode) { |
| 118 CFX_ByteString bytestr = DecodeExtended(result, e); | 118 CFX_ByteString bytestr = DecodeExtended(result, e); |
| 119 BC_EXCEPTION_CHECK_ReturnValue(e, ""); | 119 BC_EXCEPTION_CHECK_ReturnValue(e, ""); |
| 120 return bytestr; | 120 return bytestr; |
| 121 } else { | 121 } else { |
| 122 return result; | 122 return result; |
| 123 } | 123 } |
| 124 } | 124 } |
| 125 CFX_Int32Array *CBC_OnedCode39Reader::FindAsteriskPattern(CBC_CommonBitArray *ro
w, FX_INT32 &e) | 125 CFX_Int32Array *CBC_OnedCode39Reader::FindAsteriskPattern(CBC_CommonBitArray *ro
w, int32_t &e) |
| 126 { | 126 { |
| 127 FX_INT32 width = row->GetSize(); | 127 int32_t width = row->GetSize(); |
| 128 FX_INT32 rowOffset = 0; | 128 int32_t rowOffset = 0; |
| 129 while (rowOffset < width) { | 129 while (rowOffset < width) { |
| 130 if (row->Get(rowOffset)) { | 130 if (row->Get(rowOffset)) { |
| 131 break; | 131 break; |
| 132 } | 132 } |
| 133 rowOffset++; | 133 rowOffset++; |
| 134 } | 134 } |
| 135 FX_INT32 counterPosition = 0; | 135 int32_t counterPosition = 0; |
| 136 CFX_Int32Array counters; | 136 CFX_Int32Array counters; |
| 137 counters.SetSize(9); | 137 counters.SetSize(9); |
| 138 FX_INT32 patternStart = rowOffset; | 138 int32_t patternStart = rowOffset; |
| 139 FX_BOOL isWhite = FALSE; | 139 FX_BOOL isWhite = FALSE; |
| 140 FX_INT32 patternLength = counters.GetSize(); | 140 int32_t patternLength = counters.GetSize(); |
| 141 for (FX_INT32 i = rowOffset; i < width; i++) { | 141 for (int32_t i = rowOffset; i < width; i++) { |
| 142 FX_BOOL pixel = row->Get(i); | 142 FX_BOOL pixel = row->Get(i); |
| 143 if (pixel ^ isWhite) { | 143 if (pixel ^ isWhite) { |
| 144 counters[counterPosition]++; | 144 counters[counterPosition]++; |
| 145 } else { | 145 } else { |
| 146 if (counterPosition == patternLength - 1) { | 146 if (counterPosition == patternLength - 1) { |
| 147 if (ToNarrowWidePattern(&counters) == ASTERISK_ENCODING) { | 147 if (ToNarrowWidePattern(&counters) == ASTERISK_ENCODING) { |
| 148 FX_BOOL bT1 = row->IsRange(FX_MAX(0, patternStart - (i - pa
tternStart) / 2), patternStart, FALSE, e); | 148 FX_BOOL bT1 = row->IsRange(FX_MAX(0, patternStart - (i - pa
tternStart) / 2), patternStart, FALSE, e); |
| 149 BC_EXCEPTION_CHECK_ReturnValue(e, NULL); | 149 BC_EXCEPTION_CHECK_ReturnValue(e, NULL); |
| 150 if (bT1) { | 150 if (bT1) { |
| 151 CFX_Int32Array *result = FX_NEW CFX_Int32Array; | 151 CFX_Int32Array *result = FX_NEW CFX_Int32Array; |
| 152 result->SetSize(2); | 152 result->SetSize(2); |
| 153 (*result)[0] = patternStart; | 153 (*result)[0] = patternStart; |
| 154 (*result)[1] = i; | 154 (*result)[1] = i; |
| 155 return result; | 155 return result; |
| 156 } | 156 } |
| 157 } | 157 } |
| 158 patternStart += counters[0] + counters[1]; | 158 patternStart += counters[0] + counters[1]; |
| 159 for (FX_INT32 y = 2; y < patternLength; y++) { | 159 for (int32_t y = 2; y < patternLength; y++) { |
| 160 counters[y - 2] = counters[y]; | 160 counters[y - 2] = counters[y]; |
| 161 } | 161 } |
| 162 counters[patternLength - 2] = 0; | 162 counters[patternLength - 2] = 0; |
| 163 counters[patternLength - 1] = 0; | 163 counters[patternLength - 1] = 0; |
| 164 counterPosition--; | 164 counterPosition--; |
| 165 } else { | 165 } else { |
| 166 counterPosition++; | 166 counterPosition++; |
| 167 } | 167 } |
| 168 counters[counterPosition] = 1; | 168 counters[counterPosition] = 1; |
| 169 isWhite = !isWhite; | 169 isWhite = !isWhite; |
| 170 } | 170 } |
| 171 } | 171 } |
| 172 e = BCExceptionNotFound; | 172 e = BCExceptionNotFound; |
| 173 return NULL; | 173 return NULL; |
| 174 } | 174 } |
| 175 FX_INT32 CBC_OnedCode39Reader::ToNarrowWidePattern(CFX_Int32Array *counters) | 175 int32_t CBC_OnedCode39Reader::ToNarrowWidePattern(CFX_Int32Array *counters) |
| 176 { | 176 { |
| 177 FX_INT32 numCounters = counters->GetSize(); | 177 int32_t numCounters = counters->GetSize(); |
| 178 FX_INT32 maxNarrowCounter = 0; | 178 int32_t maxNarrowCounter = 0; |
| 179 FX_INT32 wideCounters; | 179 int32_t wideCounters; |
| 180 do { | 180 do { |
| 181 #undef max | 181 #undef max |
| 182 FX_INT32 minCounter = FXSYS_IntMax; | 182 int32_t minCounter = FXSYS_IntMax; |
| 183 for (FX_INT32 i = 0; i < numCounters; i++) { | 183 for (int32_t i = 0; i < numCounters; i++) { |
| 184 FX_INT32 counter = (*counters)[i]; | 184 int32_t counter = (*counters)[i]; |
| 185 if (counter < minCounter && counter > maxNarrowCounter) { | 185 if (counter < minCounter && counter > maxNarrowCounter) { |
| 186 minCounter = counter; | 186 minCounter = counter; |
| 187 } | 187 } |
| 188 } | 188 } |
| 189 maxNarrowCounter = minCounter; | 189 maxNarrowCounter = minCounter; |
| 190 wideCounters = 0; | 190 wideCounters = 0; |
| 191 FX_INT32 totalWideCountersWidth = 0; | 191 int32_t totalWideCountersWidth = 0; |
| 192 FX_INT32 pattern = 0; | 192 int32_t pattern = 0; |
| 193 for (FX_INT32 j = 0; j < numCounters; j++) { | 193 for (int32_t j = 0; j < numCounters; j++) { |
| 194 FX_INT32 counter = (*counters)[j]; | 194 int32_t counter = (*counters)[j]; |
| 195 if ((*counters)[j] > maxNarrowCounter) { | 195 if ((*counters)[j] > maxNarrowCounter) { |
| 196 pattern |= 1 << (numCounters - 1 - j); | 196 pattern |= 1 << (numCounters - 1 - j); |
| 197 wideCounters++; | 197 wideCounters++; |
| 198 totalWideCountersWidth += counter; | 198 totalWideCountersWidth += counter; |
| 199 } | 199 } |
| 200 } | 200 } |
| 201 if (wideCounters == 3) { | 201 if (wideCounters == 3) { |
| 202 for (FX_INT32 k = 0; k < numCounters && wideCounters > 0; k++) { | 202 for (int32_t k = 0; k < numCounters && wideCounters > 0; k++) { |
| 203 FX_INT32 counter = (*counters)[k]; | 203 int32_t counter = (*counters)[k]; |
| 204 if ((*counters)[k] > maxNarrowCounter) { | 204 if ((*counters)[k] > maxNarrowCounter) { |
| 205 wideCounters--; | 205 wideCounters--; |
| 206 if ((counter << 1) >= totalWideCountersWidth) { | 206 if ((counter << 1) >= totalWideCountersWidth) { |
| 207 return -1; | 207 return -1; |
| 208 } | 208 } |
| 209 } | 209 } |
| 210 } | 210 } |
| 211 return pattern; | 211 return pattern; |
| 212 } | 212 } |
| 213 } while (wideCounters > 3); | 213 } while (wideCounters > 3); |
| 214 return -1; | 214 return -1; |
| 215 } | 215 } |
| 216 FX_CHAR CBC_OnedCode39Reader::PatternToChar(FX_INT32 pattern, FX_INT32 &e) | 216 FX_CHAR CBC_OnedCode39Reader::PatternToChar(int32_t pattern, int32_t &e) |
| 217 { | 217 { |
| 218 for (FX_INT32 i = 0; i < 44; i++) { | 218 for (int32_t i = 0; i < 44; i++) { |
| 219 if (CHARACTER_ENCODINGS[i] == pattern) { | 219 if (CHARACTER_ENCODINGS[i] == pattern) { |
| 220 return (ALPHABET_STRING)[i]; | 220 return (ALPHABET_STRING)[i]; |
| 221 } | 221 } |
| 222 } | 222 } |
| 223 e = BCExceptionNotFound; | 223 e = BCExceptionNotFound; |
| 224 return 0; | 224 return 0; |
| 225 } | 225 } |
| 226 CFX_ByteString CBC_OnedCode39Reader::DecodeExtended(CFX_ByteString &encoded, FX_
INT32 &e) | 226 CFX_ByteString CBC_OnedCode39Reader::DecodeExtended(CFX_ByteString &encoded, int
32_t &e) |
| 227 { | 227 { |
| 228 FX_INT32 length = encoded.GetLength(); | 228 int32_t length = encoded.GetLength(); |
| 229 CFX_ByteString decoded; | 229 CFX_ByteString decoded; |
| 230 FX_CHAR c, next; | 230 FX_CHAR c, next; |
| 231 for(FX_INT32 i = 0; i < length; i++) { | 231 for(int32_t i = 0; i < length; i++) { |
| 232 c = encoded[i]; | 232 c = encoded[i]; |
| 233 if(c == '+' || c == '$' || c == '%' || c == '/') { | 233 if(c == '+' || c == '$' || c == '%' || c == '/') { |
| 234 next = encoded[i + 1]; | 234 next = encoded[i + 1]; |
| 235 FX_CHAR decodedChar = '\0'; | 235 FX_CHAR decodedChar = '\0'; |
| 236 switch (c) { | 236 switch (c) { |
| 237 case '+': | 237 case '+': |
| 238 if (next >= 'A' && next <= 'Z') { | 238 if (next >= 'A' && next <= 'Z') { |
| 239 decodedChar = (FX_CHAR) (next + 32); | 239 decodedChar = (FX_CHAR) (next + 32); |
| 240 } else { | 240 } else { |
| 241 e = BCExceptionFormatException; | 241 e = BCExceptionFormatException; |
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| 284 break; | 284 break; |
| 285 } | 285 } |
| 286 decoded += decodedChar; | 286 decoded += decodedChar; |
| 287 i++; | 287 i++; |
| 288 } else { | 288 } else { |
| 289 decoded += c; | 289 decoded += c; |
| 290 } | 290 } |
| 291 } | 291 } |
| 292 return decoded; | 292 return decoded; |
| 293 } | 293 } |
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