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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 in part, and ZXing Authors in part | |
| 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 "barcode.h" | |
| 24 #include "include/BC_PDF417Compaction.h" | |
| 25 #include "include/BC_UtilCodingConvert.h" | |
| 26 #include "include/BC_PDF417HighLevelEncoder.h" | |
| 27 #include "../../../../third_party/bigint/BigIntegerLibrary.hh" | |
| 28 #define SUBMODE_ALPHA 0 | |
| 29 #define SUBMODE_LOWER 1 | |
| 30 #define SUBMODE_MIXED 2 | |
| 31 FX_INT32 CBC_PDF417HighLevelEncoder::TEXT_COMPACTION = 0; | |
| 32 FX_INT32 CBC_PDF417HighLevelEncoder::BYTE_COMPACTION = 1; | |
| 33 FX_INT32 CBC_PDF417HighLevelEncoder::NUMERIC_COMPACTION = 2; | |
| 34 FX_INT32 CBC_PDF417HighLevelEncoder::SUBMODE_PUNCTUATION = 3; | |
| 35 FX_INT32 CBC_PDF417HighLevelEncoder::LATCH_TO_TEXT = 900; | |
| 36 FX_INT32 CBC_PDF417HighLevelEncoder::LATCH_TO_BYTE_PADDED = 901; | |
| 37 FX_INT32 CBC_PDF417HighLevelEncoder::LATCH_TO_NUMERIC = 902; | |
| 38 FX_INT32 CBC_PDF417HighLevelEncoder::SHIFT_TO_BYTE = 913; | |
| 39 FX_INT32 CBC_PDF417HighLevelEncoder::LATCH_TO_BYTE = 924; | |
| 40 FX_BYTE CBC_PDF417HighLevelEncoder::TEXT_MIXED_RAW[] = {48, 49, 50, 51, 52, 53,
54, 55, 56, 57, 38, 13, 9, 44, 58, | |
| 41 35, 45, 46, 36, 47, 43,
37, 42, 61, 94, 0, 32, 0, 0, 0 | |
| 42 }; | |
| 43 FX_BYTE CBC_PDF417HighLevelEncoder::TEXT_PUNCTUATION_RAW[] = {59, 60, 62, 64, 91
, 92, 93, 95, 96, 126, 33, 13, 9, 44, 58, | |
| 44 10, 45, 46, 36, 47
, 34, 124, 42, 40, 41, 63, 123, 125, 39, 0 | |
| 45 }; | |
| 46 FX_INT32 CBC_PDF417HighLevelEncoder::MIXED[128] = {0}; | |
| 47 FX_INT32 CBC_PDF417HighLevelEncoder::PUNCTUATION[128] = {0}; | |
| 48 void CBC_PDF417HighLevelEncoder::Initialize() | |
| 49 { | |
| 50 Inverse(); | |
| 51 } | |
| 52 void CBC_PDF417HighLevelEncoder::Finalize() | |
| 53 { | |
| 54 } | |
| 55 CFX_WideString CBC_PDF417HighLevelEncoder::encodeHighLevel(CFX_WideString wideMs
g, Compaction compaction, FX_INT32 &e) | |
| 56 { | |
| 57 CFX_ByteString bytes; | |
| 58 CBC_UtilCodingConvert::UnicodeToUTF8(wideMsg, bytes); | |
| 59 CFX_WideString msg; | |
| 60 FX_INT32 len = bytes.GetLength(); | |
| 61 for (FX_INT32 i = 0; i < len; i++) { | |
| 62 FX_WCHAR ch = (FX_WCHAR)(bytes.GetAt(i) & 0xff); | |
| 63 if (ch == '?' && bytes.GetAt(i) != '?') { | |
| 64 e = BCExceptionCharactersOutsideISO88591Encoding; | |
| 65 return (FX_LPWSTR)""; | |
| 66 } | |
| 67 msg += ch; | |
| 68 } | |
| 69 CFX_ByteArray byteArr; | |
| 70 for (FX_INT32 k = 0; k < bytes.GetLength(); k++) { | |
| 71 byteArr.Add(bytes.GetAt(k)); | |
| 72 } | |
| 73 CFX_WideString sb; | |
| 74 len = msg.GetLength(); | |
| 75 FX_INT32 p = 0; | |
| 76 FX_INT32 textSubMode = SUBMODE_ALPHA; | |
| 77 if (compaction == TEXT) { | |
| 78 encodeText(msg, p, len, sb, textSubMode); | |
| 79 } else if (compaction == BYTES) { | |
| 80 encodeBinary(&byteArr, p, byteArr.GetSize(), BYTE_COMPACTION, sb); | |
| 81 } else if (compaction == NUMERIC) { | |
| 82 sb += (FX_WCHAR) LATCH_TO_NUMERIC; | |
| 83 encodeNumeric(msg, p, len, sb); | |
| 84 } else { | |
| 85 FX_INT32 encodingMode = LATCH_TO_TEXT; | |
| 86 while (p < len) { | |
| 87 FX_INT32 n = determineConsecutiveDigitCount(msg, p); | |
| 88 if (n >= 13) { | |
| 89 sb += (FX_WCHAR) LATCH_TO_NUMERIC; | |
| 90 encodingMode = NUMERIC_COMPACTION; | |
| 91 textSubMode = SUBMODE_ALPHA; | |
| 92 encodeNumeric(msg, p, n, sb); | |
| 93 p += n; | |
| 94 } else { | |
| 95 FX_INT32 t = determineConsecutiveTextCount(msg, p); | |
| 96 if (t >= 5 || n == len) { | |
| 97 if (encodingMode != TEXT_COMPACTION) { | |
| 98 sb += (FX_WCHAR) LATCH_TO_TEXT; | |
| 99 encodingMode = TEXT_COMPACTION; | |
| 100 textSubMode = SUBMODE_ALPHA; | |
| 101 } | |
| 102 textSubMode = encodeText(msg, p, t, sb, textSubMode); | |
| 103 p += t; | |
| 104 } else { | |
| 105 FX_INT32 b = determineConsecutiveBinaryCount(msg, &byteArr,
p, e); | |
| 106 BC_EXCEPTION_CHECK_ReturnValue(e, (FX_WCHAR)' '); | |
| 107 if (b == 0) { | |
| 108 b = 1; | |
| 109 } | |
| 110 if (b == 1 && encodingMode == TEXT_COMPACTION) { | |
| 111 encodeBinary(&byteArr, p, 1, TEXT_COMPACTION, sb); | |
| 112 } else { | |
| 113 encodeBinary(&byteArr, p, b, encodingMode, sb); | |
| 114 encodingMode = BYTE_COMPACTION; | |
| 115 textSubMode = SUBMODE_ALPHA; | |
| 116 } | |
| 117 p += b; | |
| 118 } | |
| 119 } | |
| 120 } | |
| 121 } | |
| 122 return sb; | |
| 123 } | |
| 124 void CBC_PDF417HighLevelEncoder::Inverse() | |
| 125 { | |
| 126 FX_BYTE i = 0; | |
| 127 FX_INT32 l = 0; | |
| 128 for (l = 0; l < sizeof(MIXED) / sizeof(MIXED[0]); l++) { | |
| 129 MIXED[l] = -1; | |
| 130 } | |
| 131 for (i = 0; i < sizeof(TEXT_MIXED_RAW) / sizeof(TEXT_MIXED_RAW[0]); i++) { | |
| 132 FX_BYTE b = TEXT_MIXED_RAW[i]; | |
| 133 if (b > 0) { | |
| 134 MIXED[b] = i; | |
| 135 } | |
| 136 } | |
| 137 for (l = 0; l < sizeof(PUNCTUATION) / sizeof(PUNCTUATION[0]); l++) { | |
| 138 PUNCTUATION[l] = -1; | |
| 139 } | |
| 140 for (i = 0; i < sizeof(TEXT_PUNCTUATION_RAW) / sizeof(TEXT_PUNCTUATION_RAW[0
]); i++) { | |
| 141 FX_BYTE b = TEXT_PUNCTUATION_RAW[i]; | |
| 142 if (b > 0) { | |
| 143 PUNCTUATION[b] = i; | |
| 144 } | |
| 145 } | |
| 146 } | |
| 147 FX_INT32 CBC_PDF417HighLevelEncoder::encodeText(CFX_WideString msg, FX_INT32 sta
rtpos, FX_INT32 count, CFX_WideString &sb, FX_INT32 initialSubmode) | |
| 148 { | |
| 149 CFX_WideString tmp; | |
| 150 FX_INT32 submode = initialSubmode; | |
| 151 FX_INT32 idx = 0; | |
| 152 while (TRUE) { | |
| 153 FX_WCHAR ch = msg.GetAt(startpos + idx); | |
| 154 switch (submode) { | |
| 155 case SUBMODE_ALPHA: | |
| 156 if (isAlphaUpper(ch)) { | |
| 157 if (ch == ' ') { | |
| 158 tmp += (FX_WCHAR) 26; | |
| 159 } else { | |
| 160 tmp += (FX_WCHAR) (ch - 65); | |
| 161 } | |
| 162 } else { | |
| 163 if (isAlphaLower(ch)) { | |
| 164 submode = SUBMODE_LOWER; | |
| 165 tmp += (FX_WCHAR) 27; | |
| 166 continue; | |
| 167 } else if (isMixed(ch)) { | |
| 168 submode = SUBMODE_MIXED; | |
| 169 tmp += (FX_WCHAR) 28; | |
| 170 continue; | |
| 171 } else { | |
| 172 tmp += (FX_WCHAR) 29; | |
| 173 tmp += PUNCTUATION[ch]; | |
| 174 break; | |
| 175 } | |
| 176 } | |
| 177 break; | |
| 178 case SUBMODE_LOWER: | |
| 179 if (isAlphaLower(ch)) { | |
| 180 if (ch == ' ') { | |
| 181 tmp += (FX_WCHAR) 26; | |
| 182 } else { | |
| 183 tmp += (FX_WCHAR) (ch - 97); | |
| 184 } | |
| 185 } else { | |
| 186 if (isAlphaUpper(ch)) { | |
| 187 tmp += (FX_WCHAR) 27; | |
| 188 tmp += (FX_WCHAR) (ch - 65); | |
| 189 break; | |
| 190 } else if (isMixed(ch)) { | |
| 191 submode = SUBMODE_MIXED; | |
| 192 tmp += (FX_WCHAR) 28; | |
| 193 continue; | |
| 194 } else { | |
| 195 tmp += (FX_WCHAR) 29; | |
| 196 tmp += PUNCTUATION[ch]; | |
| 197 break; | |
| 198 } | |
| 199 } | |
| 200 break; | |
| 201 case SUBMODE_MIXED: | |
| 202 if (isMixed(ch)) { | |
| 203 FX_WCHAR a = MIXED[ch]; | |
| 204 FX_INT32 b = (FX_INT32)a; | |
| 205 tmp += MIXED[ch]; | |
| 206 } else { | |
| 207 if (isAlphaUpper(ch)) { | |
| 208 submode = SUBMODE_ALPHA; | |
| 209 tmp += (FX_WCHAR) 28; | |
| 210 continue; | |
| 211 } else if (isAlphaLower(ch)) { | |
| 212 submode = SUBMODE_LOWER; | |
| 213 tmp += (FX_WCHAR) 27; | |
| 214 continue; | |
| 215 } else { | |
| 216 if (startpos + idx + 1 < count) { | |
| 217 FX_WCHAR next = msg.GetAt(startpos + idx + 1); | |
| 218 if (isPunctuation(next)) { | |
| 219 submode = SUBMODE_PUNCTUATION; | |
| 220 tmp += (FX_WCHAR) 25; | |
| 221 continue; | |
| 222 } | |
| 223 } | |
| 224 tmp += (FX_WCHAR) 29; | |
| 225 tmp += PUNCTUATION[ch]; | |
| 226 } | |
| 227 } | |
| 228 break; | |
| 229 default: | |
| 230 if (isPunctuation(ch)) { | |
| 231 tmp += PUNCTUATION[ch]; | |
| 232 } else { | |
| 233 submode = SUBMODE_ALPHA; | |
| 234 tmp += (FX_WCHAR) 29; | |
| 235 continue; | |
| 236 } | |
| 237 } | |
| 238 idx++; | |
| 239 if (idx >= count) { | |
| 240 break; | |
| 241 } | |
| 242 } | |
| 243 FX_WCHAR h = 0; | |
| 244 FX_INT32 len = tmp.GetLength(); | |
| 245 for (FX_INT32 i = 0; i < len; i++) { | |
| 246 FX_BOOL odd = (i % 2) != 0; | |
| 247 if (odd) { | |
| 248 h = (FX_WCHAR) ((h * 30) + tmp.GetAt(i)); | |
| 249 sb += h; | |
| 250 } else { | |
| 251 h = tmp.GetAt(i); | |
| 252 } | |
| 253 } | |
| 254 if ((len % 2) != 0) { | |
| 255 sb += (FX_WCHAR) ((h * 30) + 29); | |
| 256 } | |
| 257 return submode; | |
| 258 } | |
| 259 void CBC_PDF417HighLevelEncoder::encodeBinary(CFX_ByteArray* bytes, FX_INT32 sta
rtpos, FX_INT32 count, FX_INT32 startmode, CFX_WideString &sb) | |
| 260 { | |
| 261 if (count == 1 && startmode == TEXT_COMPACTION) { | |
| 262 sb += (FX_WCHAR) SHIFT_TO_BYTE; | |
| 263 } | |
| 264 FX_INT32 idx = startpos; | |
| 265 FX_INT32 i = 0; | |
| 266 if (count >= 6) { | |
| 267 sb += (FX_WCHAR) LATCH_TO_BYTE; | |
| 268 FX_WCHAR chars[5]; | |
| 269 while ((startpos + count - idx) >= 6) { | |
| 270 FX_INT64 t = 0; | |
| 271 for (i = 0; i < 6; i++) { | |
| 272 t <<= 8; | |
| 273 t += bytes->GetAt(idx + i) & 0xff; | |
| 274 } | |
| 275 for (i = 0; i < 5; i++) { | |
| 276 chars[i] = (FX_WCHAR) (t % 900); | |
| 277 t /= 900; | |
| 278 } | |
| 279 for (i = 4; i >= 0; i--) { | |
| 280 sb += (chars[i]); | |
| 281 } | |
| 282 idx += 6; | |
| 283 } | |
| 284 } | |
| 285 if (idx < startpos + count) { | |
| 286 sb += (FX_WCHAR) LATCH_TO_BYTE_PADDED; | |
| 287 } | |
| 288 for (i = idx; i < startpos + count; i++) { | |
| 289 FX_INT32 ch = bytes->GetAt(i) & 0xff; | |
| 290 sb += (FX_WCHAR) ch; | |
| 291 } | |
| 292 } | |
| 293 void CBC_PDF417HighLevelEncoder::encodeNumeric(CFX_WideString msg, FX_INT32 star
tpos, FX_INT32 count, CFX_WideString &sb) | |
| 294 { | |
| 295 FX_INT32 idx = 0; | |
| 296 BigInteger num900 = 900; | |
| 297 while (idx < count - 1) { | |
| 298 CFX_WideString tmp; | |
| 299 FX_INT32 len = 44 < count - idx ? 44 : count - idx; | |
| 300 CFX_ByteString part = ((FX_WCHAR)'1' + msg.Mid(startpos + idx, len)).UTF
8Encode(); | |
| 301 BigInteger bigint = stringToBigInteger(FX_LPCSTR(part)); | |
| 302 do { | |
| 303 FX_INT32 c = (bigint % num900).toInt(); | |
| 304 tmp += (FX_WCHAR)(c); | |
| 305 bigint = bigint / num900; | |
| 306 } while (!bigint.isZero()); | |
| 307 for (FX_INT32 i = tmp.GetLength() - 1; i >= 0; i--) { | |
| 308 sb += tmp.GetAt(i); | |
| 309 } | |
| 310 idx += len; | |
| 311 } | |
| 312 } | |
| 313 FX_BOOL CBC_PDF417HighLevelEncoder::isDigit(FX_WCHAR ch) | |
| 314 { | |
| 315 return ch >= '0' && ch <= '9'; | |
| 316 } | |
| 317 FX_BOOL CBC_PDF417HighLevelEncoder::isAlphaUpper(FX_WCHAR ch) | |
| 318 { | |
| 319 return ch == ' ' || (ch >= 'A' && ch <= 'Z'); | |
| 320 } | |
| 321 FX_BOOL CBC_PDF417HighLevelEncoder::isAlphaLower(FX_WCHAR ch) | |
| 322 { | |
| 323 return ch == ' ' || (ch >= 'a' && ch <= 'z'); | |
| 324 } | |
| 325 FX_BOOL CBC_PDF417HighLevelEncoder::isMixed(FX_WCHAR ch) | |
| 326 { | |
| 327 return MIXED[ch] != -1; | |
| 328 } | |
| 329 FX_BOOL CBC_PDF417HighLevelEncoder::isPunctuation(FX_WCHAR ch) | |
| 330 { | |
| 331 return PUNCTUATION[ch] != -1; | |
| 332 } | |
| 333 FX_BOOL CBC_PDF417HighLevelEncoder::isText(FX_WCHAR ch) | |
| 334 { | |
| 335 return ch == '\t' || ch == '\n' || ch == '\r' || (ch >= 32 && ch <= 126); | |
| 336 } | |
| 337 FX_INT32 CBC_PDF417HighLevelEncoder::determineConsecutiveDigitCount(CFX_WideStri
ng msg, FX_INT32 startpos) | |
| 338 { | |
| 339 FX_INT32 count = 0; | |
| 340 FX_INT32 len = msg.GetLength(); | |
| 341 FX_INT32 idx = startpos; | |
| 342 if (idx < len) { | |
| 343 FX_WCHAR ch = msg.GetAt(idx); | |
| 344 while (isDigit(ch) && idx < len) { | |
| 345 count++; | |
| 346 idx++; | |
| 347 if (idx < len) { | |
| 348 ch = msg.GetAt(idx); | |
| 349 } | |
| 350 } | |
| 351 } | |
| 352 return count; | |
| 353 } | |
| 354 FX_INT32 CBC_PDF417HighLevelEncoder::determineConsecutiveTextCount(CFX_WideStrin
g msg, FX_INT32 startpos) | |
| 355 { | |
| 356 FX_INT32 len = msg.GetLength(); | |
| 357 FX_INT32 idx = startpos; | |
| 358 while (idx < len) { | |
| 359 FX_WCHAR ch = msg.GetAt(idx); | |
| 360 FX_INT32 numericCount = 0; | |
| 361 while (numericCount < 13 && isDigit(ch) && idx < len) { | |
| 362 numericCount++; | |
| 363 idx++; | |
| 364 if (idx < len) { | |
| 365 ch = msg.GetAt(idx); | |
| 366 } | |
| 367 } | |
| 368 if (numericCount >= 13) { | |
| 369 return idx - startpos - numericCount; | |
| 370 } | |
| 371 if (numericCount > 0) { | |
| 372 continue; | |
| 373 } | |
| 374 ch = msg.GetAt(idx); | |
| 375 if (!isText(ch)) { | |
| 376 break; | |
| 377 } | |
| 378 idx++; | |
| 379 } | |
| 380 return idx - startpos; | |
| 381 } | |
| 382 FX_INT32 CBC_PDF417HighLevelEncoder::determineConsecutiveBinaryCount(CFX_WideStr
ing msg, CFX_ByteArray* bytes, FX_INT32 startpos, FX_INT32 &e) | |
| 383 { | |
| 384 FX_INT32 len = msg.GetLength(); | |
| 385 FX_INT32 idx = startpos; | |
| 386 while (idx < len) { | |
| 387 FX_WCHAR ch = msg.GetAt(idx); | |
| 388 FX_INT32 numericCount = 0; | |
| 389 while (numericCount < 13 && isDigit(ch)) { | |
| 390 numericCount++; | |
| 391 FX_INT32 i = idx + numericCount; | |
| 392 if (i >= len) { | |
| 393 break; | |
| 394 } | |
| 395 ch = msg.GetAt(i); | |
| 396 } | |
| 397 if (numericCount >= 13) { | |
| 398 return idx - startpos; | |
| 399 } | |
| 400 FX_INT32 textCount = 0; | |
| 401 while (textCount < 5 && isText(ch)) { | |
| 402 textCount++; | |
| 403 FX_INT32 i = idx + textCount; | |
| 404 if (i >= len) { | |
| 405 break; | |
| 406 } | |
| 407 ch = msg.GetAt(i); | |
| 408 } | |
| 409 if (textCount >= 5) { | |
| 410 return idx - startpos; | |
| 411 } | |
| 412 ch = msg.GetAt(idx); | |
| 413 if (bytes->GetAt(idx) == 63 && ch != '?') { | |
| 414 e = BCExceptionNonEncodableCharacterDetected; | |
| 415 return -1; | |
| 416 } | |
| 417 idx++; | |
| 418 } | |
| 419 return idx - startpos; | |
| 420 } | |
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Chromium Code Reviews
Issue 842043002:
Organize barcode codes into modules. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@xfa