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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/datamatrix/BC_DataMatrixBitMatrixParser.h" | |
| 24 | |
| 25 #include <memory> | |
| 26 | |
| 27 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" | |
| 28 #include "xfa/src/fxbarcode/datamatrix/BC_DataMatrixVersion.h" | |
| 29 #include "xfa/src/fxbarcode/utils.h" | |
| 30 | |
| 31 CBC_DataMatrixBitMatrixParser::CBC_DataMatrixBitMatrixParser() { | |
| 32 m_mappingBitMatrix = NULL; | |
| 33 m_version = NULL; | |
| 34 m_readMappingMatrix = NULL; | |
| 35 } | |
| 36 void CBC_DataMatrixBitMatrixParser::Init(CBC_CommonBitMatrix* bitMatrix, | |
| 37 int32_t& e) { | |
| 38 int32_t dimension = bitMatrix->GetHeight(); | |
| 39 if (dimension < 8 || dimension > 144 || (dimension & 0x01) != 0) { | |
| 40 e = BCExceptionFormatException; | |
| 41 return; | |
| 42 } | |
| 43 m_version = ReadVersion(bitMatrix, e); | |
| 44 BC_EXCEPTION_CHECK_ReturnVoid(e); | |
| 45 m_mappingBitMatrix = ExtractDataRegion(bitMatrix, e); | |
| 46 BC_EXCEPTION_CHECK_ReturnVoid(e); | |
| 47 m_readMappingMatrix = new CBC_CommonBitMatrix(); | |
| 48 m_readMappingMatrix->Init(m_mappingBitMatrix->GetWidth(), | |
| 49 m_mappingBitMatrix->GetHeight()); | |
| 50 } | |
| 51 CBC_DataMatrixBitMatrixParser::~CBC_DataMatrixBitMatrixParser() { | |
| 52 delete m_mappingBitMatrix; | |
| 53 delete m_readMappingMatrix; | |
| 54 } | |
| 55 CBC_DataMatrixVersion* CBC_DataMatrixBitMatrixParser::GetVersion() { | |
| 56 return m_version; | |
| 57 } | |
| 58 CBC_DataMatrixVersion* CBC_DataMatrixBitMatrixParser::ReadVersion( | |
| 59 CBC_CommonBitMatrix* bitMatrix, | |
| 60 int32_t& e) { | |
| 61 int32_t rows = bitMatrix->GetHeight(); | |
| 62 int32_t columns = bitMatrix->GetWidth(); | |
| 63 CBC_DataMatrixVersion* temp = | |
| 64 CBC_DataMatrixVersion::GetVersionForDimensions(rows, columns, e); | |
| 65 BC_EXCEPTION_CHECK_ReturnValue(e, NULL); | |
| 66 return temp; | |
| 67 } | |
| 68 CFX_ByteArray* CBC_DataMatrixBitMatrixParser::ReadCodewords(int32_t& e) { | |
| 69 std::unique_ptr<CFX_ByteArray> result(new CFX_ByteArray()); | |
| 70 result->SetSize(m_version->GetTotalCodewords()); | |
| 71 int32_t resultOffset = 0; | |
| 72 int32_t row = 4; | |
| 73 int32_t column = 0; | |
| 74 int32_t numRows = m_mappingBitMatrix->GetHeight(); | |
| 75 int32_t numColumns = m_mappingBitMatrix->GetWidth(); | |
| 76 FX_BOOL corner1Read = FALSE; | |
| 77 FX_BOOL corner2Read = FALSE; | |
| 78 FX_BOOL corner3Read = FALSE; | |
| 79 FX_BOOL corner4Read = FALSE; | |
| 80 do { | |
| 81 if ((row == numRows) && (column == 0) && !corner1Read) { | |
| 82 (*result)[resultOffset++] = (uint8_t)ReadCorner1(numRows, numColumns); | |
| 83 row -= 2; | |
| 84 column += 2; | |
| 85 corner1Read = TRUE; | |
| 86 } else if ((row == numRows - 2) && (column == 0) && | |
| 87 ((numColumns & 0x03) != 0) && !corner2Read) { | |
| 88 (*result)[resultOffset++] = (uint8_t)ReadCorner2(numRows, numColumns); | |
| 89 row -= 2; | |
| 90 column += 2; | |
| 91 corner2Read = TRUE; | |
| 92 } else if ((row == numRows + 4) && (column == 2) && | |
| 93 ((numColumns & 0x07) == 0) && !corner3Read) { | |
| 94 (*result)[resultOffset++] = (uint8_t)ReadCorner3(numRows, numColumns); | |
| 95 row -= 2; | |
| 96 column += 2; | |
| 97 corner3Read = TRUE; | |
| 98 } else if ((row == numRows - 2) && (column == 0) && | |
| 99 ((numColumns & 0x07) == 4) && !corner4Read) { | |
| 100 (*result)[resultOffset++] = (uint8_t)ReadCorner4(numRows, numColumns); | |
| 101 row -= 2; | |
| 102 column += 2; | |
| 103 corner4Read = TRUE; | |
| 104 } else { | |
| 105 do { | |
| 106 if ((row < numRows) && (column >= 0) && | |
| 107 !m_readMappingMatrix->Get(column, row)) { | |
| 108 if (resultOffset < (*result).GetSize()) { | |
| 109 (*result)[resultOffset++] = | |
| 110 (uint8_t)ReadUtah(row, column, numRows, numColumns); | |
| 111 } | |
| 112 } | |
| 113 row -= 2; | |
| 114 column += 2; | |
| 115 } while ((row >= 0) && (column < numColumns)); | |
| 116 row += 1; | |
| 117 column += 3; | |
| 118 do { | |
| 119 if ((row >= 0) && (column < numColumns) && | |
| 120 !m_readMappingMatrix->Get(column, row)) { | |
| 121 if (resultOffset < (*result).GetSize()) { | |
| 122 (*result)[resultOffset++] = | |
| 123 (uint8_t)ReadUtah(row, column, numRows, numColumns); | |
| 124 } | |
| 125 } | |
| 126 row += 2; | |
| 127 column -= 2; | |
| 128 } while ((row < numRows) && (column >= 0)); | |
| 129 row += 3; | |
| 130 column += 1; | |
| 131 } | |
| 132 } while ((row < numRows) || (column < numColumns)); | |
| 133 if (resultOffset != m_version->GetTotalCodewords()) { | |
| 134 e = BCExceptionFormatException; | |
| 135 return NULL; | |
| 136 } | |
| 137 return result.release(); | |
| 138 } | |
| 139 FX_BOOL CBC_DataMatrixBitMatrixParser::ReadModule(int32_t row, | |
| 140 int32_t column, | |
| 141 int32_t numRows, | |
| 142 int32_t numColumns) { | |
| 143 if (row < 0) { | |
| 144 row += numRows; | |
| 145 column += 4 - ((numRows + 4) & 0x07); | |
| 146 } | |
| 147 if (column < 0) { | |
| 148 column += numColumns; | |
| 149 row += 4 - ((numColumns + 4) & 0x07); | |
| 150 } | |
| 151 m_readMappingMatrix->Set(column, row); | |
| 152 return m_mappingBitMatrix->Get(column, row); | |
| 153 } | |
| 154 int32_t CBC_DataMatrixBitMatrixParser::ReadUtah(int32_t row, | |
| 155 int32_t column, | |
| 156 int32_t numRows, | |
| 157 int32_t numColumns) { | |
| 158 int32_t currentByte = 0; | |
| 159 if (ReadModule(row - 2, column - 2, numRows, numColumns)) { | |
| 160 currentByte |= 1; | |
| 161 } | |
| 162 currentByte <<= 1; | |
| 163 if (ReadModule(row - 2, column - 1, numRows, numColumns)) { | |
| 164 currentByte |= 1; | |
| 165 } | |
| 166 currentByte <<= 1; | |
| 167 if (ReadModule(row - 1, column - 2, numRows, numColumns)) { | |
| 168 currentByte |= 1; | |
| 169 } | |
| 170 currentByte <<= 1; | |
| 171 if (ReadModule(row - 1, column - 1, numRows, numColumns)) { | |
| 172 currentByte |= 1; | |
| 173 } | |
| 174 currentByte <<= 1; | |
| 175 if (ReadModule(row - 1, column, numRows, numColumns)) { | |
| 176 currentByte |= 1; | |
| 177 } | |
| 178 currentByte <<= 1; | |
| 179 if (ReadModule(row, column - 2, numRows, numColumns)) { | |
| 180 currentByte |= 1; | |
| 181 } | |
| 182 currentByte <<= 1; | |
| 183 if (ReadModule(row, column - 1, numRows, numColumns)) { | |
| 184 currentByte |= 1; | |
| 185 } | |
| 186 currentByte <<= 1; | |
| 187 if (ReadModule(row, column, numRows, numColumns)) { | |
| 188 currentByte |= 1; | |
| 189 } | |
| 190 return currentByte; | |
| 191 } | |
| 192 int32_t CBC_DataMatrixBitMatrixParser::ReadCorner1(int32_t numRows, | |
| 193 int32_t numColumns) { | |
| 194 int32_t currentByte = 0; | |
| 195 if (ReadModule(numRows - 1, 0, numRows, numColumns)) { | |
| 196 currentByte |= 1; | |
| 197 } | |
| 198 currentByte <<= 1; | |
| 199 if (ReadModule(numRows - 1, 1, numRows, numColumns)) { | |
| 200 currentByte |= 1; | |
| 201 } | |
| 202 currentByte <<= 1; | |
| 203 if (ReadModule(numRows - 1, 2, numRows, numColumns)) { | |
| 204 currentByte |= 1; | |
| 205 } | |
| 206 currentByte <<= 1; | |
| 207 if (ReadModule(0, numColumns - 2, numRows, numColumns)) { | |
| 208 currentByte |= 1; | |
| 209 } | |
| 210 currentByte <<= 1; | |
| 211 if (ReadModule(0, numColumns - 1, numRows, numColumns)) { | |
| 212 currentByte |= 1; | |
| 213 } | |
| 214 currentByte <<= 1; | |
| 215 if (ReadModule(1, numColumns - 1, numRows, numColumns)) { | |
| 216 currentByte |= 1; | |
| 217 } | |
| 218 currentByte <<= 1; | |
| 219 if (ReadModule(2, numColumns - 1, numRows, numColumns)) { | |
| 220 currentByte |= 1; | |
| 221 } | |
| 222 currentByte <<= 1; | |
| 223 if (ReadModule(3, numColumns - 1, numRows, numColumns)) { | |
| 224 currentByte |= 1; | |
| 225 } | |
| 226 return currentByte; | |
| 227 } | |
| 228 int32_t CBC_DataMatrixBitMatrixParser::ReadCorner2(int32_t numRows, | |
| 229 int32_t numColumns) { | |
| 230 int32_t currentByte = 0; | |
| 231 if (ReadModule(numRows - 3, 0, numRows, numColumns)) { | |
| 232 currentByte |= 1; | |
| 233 } | |
| 234 currentByte <<= 1; | |
| 235 if (ReadModule(numRows - 2, 0, numRows, numColumns)) { | |
| 236 currentByte |= 1; | |
| 237 } | |
| 238 currentByte <<= 1; | |
| 239 if (ReadModule(numRows - 1, 0, numRows, numColumns)) { | |
| 240 currentByte |= 1; | |
| 241 } | |
| 242 currentByte <<= 1; | |
| 243 if (ReadModule(0, numColumns - 4, numRows, numColumns)) { | |
| 244 currentByte |= 1; | |
| 245 } | |
| 246 currentByte <<= 1; | |
| 247 if (ReadModule(0, numColumns - 3, numRows, numColumns)) { | |
| 248 currentByte |= 1; | |
| 249 } | |
| 250 currentByte <<= 1; | |
| 251 if (ReadModule(0, numColumns - 2, numRows, numColumns)) { | |
| 252 currentByte |= 1; | |
| 253 } | |
| 254 currentByte <<= 1; | |
| 255 if (ReadModule(0, numColumns - 1, numRows, numColumns)) { | |
| 256 currentByte |= 1; | |
| 257 } | |
| 258 currentByte <<= 1; | |
| 259 if (ReadModule(1, numColumns - 1, numRows, numColumns)) { | |
| 260 currentByte |= 1; | |
| 261 } | |
| 262 return currentByte; | |
| 263 } | |
| 264 int32_t CBC_DataMatrixBitMatrixParser::ReadCorner3(int32_t numRows, | |
| 265 int32_t numColumns) { | |
| 266 int32_t currentByte = 0; | |
| 267 if (ReadModule(numRows - 1, 0, numRows, numColumns)) { | |
| 268 currentByte |= 1; | |
| 269 } | |
| 270 currentByte <<= 1; | |
| 271 if (ReadModule(numRows - 1, numColumns - 1, numRows, numColumns)) { | |
| 272 currentByte |= 1; | |
| 273 } | |
| 274 currentByte <<= 1; | |
| 275 if (ReadModule(0, numColumns - 3, numRows, numColumns)) { | |
| 276 currentByte |= 1; | |
| 277 } | |
| 278 currentByte <<= 1; | |
| 279 if (ReadModule(0, numColumns - 2, numRows, numColumns)) { | |
| 280 currentByte |= 1; | |
| 281 } | |
| 282 currentByte <<= 1; | |
| 283 if (ReadModule(0, numColumns - 1, numRows, numColumns)) { | |
| 284 currentByte |= 1; | |
| 285 } | |
| 286 currentByte <<= 1; | |
| 287 if (ReadModule(1, numColumns - 3, numRows, numColumns)) { | |
| 288 currentByte |= 1; | |
| 289 } | |
| 290 currentByte <<= 1; | |
| 291 if (ReadModule(1, numColumns - 2, numRows, numColumns)) { | |
| 292 currentByte |= 1; | |
| 293 } | |
| 294 currentByte <<= 1; | |
| 295 if (ReadModule(1, numColumns - 1, numRows, numColumns)) { | |
| 296 currentByte |= 1; | |
| 297 } | |
| 298 return currentByte; | |
| 299 } | |
| 300 int32_t CBC_DataMatrixBitMatrixParser::ReadCorner4(int32_t numRows, | |
| 301 int32_t numColumns) { | |
| 302 int32_t currentByte = 0; | |
| 303 if (ReadModule(numRows - 3, 0, numRows, numColumns)) { | |
| 304 currentByte |= 1; | |
| 305 } | |
| 306 currentByte <<= 1; | |
| 307 if (ReadModule(numRows - 2, 0, numRows, numColumns)) { | |
| 308 currentByte |= 1; | |
| 309 } | |
| 310 currentByte <<= 1; | |
| 311 if (ReadModule(numRows - 1, 0, numRows, numColumns)) { | |
| 312 currentByte |= 1; | |
| 313 } | |
| 314 currentByte <<= 1; | |
| 315 if (ReadModule(0, numColumns - 2, numRows, numColumns)) { | |
| 316 currentByte |= 1; | |
| 317 } | |
| 318 currentByte <<= 1; | |
| 319 if (ReadModule(0, numColumns - 1, numRows, numColumns)) { | |
| 320 currentByte |= 1; | |
| 321 } | |
| 322 currentByte <<= 1; | |
| 323 if (ReadModule(1, numColumns - 1, numRows, numColumns)) { | |
| 324 currentByte |= 1; | |
| 325 } | |
| 326 currentByte <<= 1; | |
| 327 if (ReadModule(2, numColumns - 1, numRows, numColumns)) { | |
| 328 currentByte |= 1; | |
| 329 } | |
| 330 currentByte <<= 1; | |
| 331 if (ReadModule(3, numColumns - 1, numRows, numColumns)) { | |
| 332 currentByte |= 1; | |
| 333 } | |
| 334 return currentByte; | |
| 335 } | |
| 336 CBC_CommonBitMatrix* CBC_DataMatrixBitMatrixParser::ExtractDataRegion( | |
| 337 CBC_CommonBitMatrix* bitMatrix, | |
| 338 int32_t& e) { | |
| 339 int32_t symbolSizeRows = m_version->GetSymbolSizeRows(); | |
| 340 int32_t symbolSizeColumns = m_version->GetSymbolSizeColumns(); | |
| 341 if (bitMatrix->GetHeight() != symbolSizeRows) { | |
| 342 e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix; | |
| 343 return NULL; | |
| 344 } | |
| 345 int32_t dataRegionSizeRows = m_version->GetDataRegionSizeRows(); | |
| 346 int32_t dataRegionSizeColumns = m_version->GetDataRegionSizeColumns(); | |
| 347 int32_t numDataRegionsRow = symbolSizeRows / dataRegionSizeRows; | |
| 348 int32_t numDataRegionsColumn = symbolSizeColumns / dataRegionSizeColumns; | |
| 349 int32_t sizeDataRegionRow = numDataRegionsRow * dataRegionSizeRows; | |
| 350 int32_t sizeDataRegionColumn = numDataRegionsColumn * dataRegionSizeColumns; | |
| 351 CBC_CommonBitMatrix* bitMatrixWithoutAlignment = new CBC_CommonBitMatrix(); | |
| 352 bitMatrixWithoutAlignment->Init(sizeDataRegionColumn, sizeDataRegionRow); | |
| 353 int32_t dataRegionRow; | |
| 354 for (dataRegionRow = 0; dataRegionRow < numDataRegionsRow; ++dataRegionRow) { | |
| 355 int32_t dataRegionRowOffset = dataRegionRow * dataRegionSizeRows; | |
| 356 int32_t dataRegionColumn; | |
| 357 for (dataRegionColumn = 0; dataRegionColumn < numDataRegionsColumn; | |
| 358 ++dataRegionColumn) { | |
| 359 int32_t dataRegionColumnOffset = dataRegionColumn * dataRegionSizeColumns; | |
| 360 int32_t i; | |
| 361 for (i = 0; i < dataRegionSizeRows; ++i) { | |
| 362 int32_t readRowOffset = | |
| 363 dataRegionRow * (dataRegionSizeRows + 2) + 1 + i; | |
| 364 int32_t writeRowOffset = dataRegionRowOffset + i; | |
| 365 int32_t j; | |
| 366 for (j = 0; j < dataRegionSizeColumns; ++j) { | |
| 367 int32_t readColumnOffset = | |
| 368 dataRegionColumn * (dataRegionSizeColumns + 2) + 1 + j; | |
| 369 if (bitMatrix->Get(readColumnOffset, readRowOffset)) { | |
| 370 int32_t writeColumnOffset = dataRegionColumnOffset + j; | |
| 371 bitMatrixWithoutAlignment->Set(writeColumnOffset, writeRowOffset); | |
| 372 } | |
| 373 } | |
| 374 } | |
| 375 } | |
| 376 } | |
| 377 return bitMatrixWithoutAlignment; | |
| 378 } | |
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Chromium Code Reviews
Issue 1803723002:
Move xfa/src up to xfa/. (Closed)
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