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 7 #include "JBig2_GeneralDecoder.h" 8 #include "JBig2_ArithDecoder.h" 9 #include "JBig2_ArithIntDecoder.h" 10 #include "JBig2_HuffmanDecoder.h" 11 #include "JBig2_HuffmanTable.h" 12 #include "JBig2_PatternDict.h" 13 14 extern const JBig2ArithQe QeTable[] = { 15 { 0x5601, 1, 1, 1 }, 16 { 0x3401, 2, 6, 0 }, 17 { 0x1801, 3, 9, 0 }, 18 { 0x0AC1, 4, 12, 0 }, 19 { 0x0521, 5, 29, 0 }, 20 { 0x0221, 38, 33, 0 }, 21 { 0x5601, 7, 6, 1 }, 22 { 0x5401, 8, 14, 0 }, 23 { 0x4801, 9, 14, 0 }, 24 { 0x3801, 10, 14, 0 }, 25 { 0x3001, 11, 17, 0 }, 26 { 0x2401, 12, 18, 0 }, 27 { 0x1C01, 13, 20, 0 }, 28 { 0x1601, 29, 21, 0 }, 29 { 0x5601, 15, 14, 1 }, 30 { 0x5401, 16, 14, 0 }, 31 { 0x5101, 17, 15, 0 }, 32 { 0x4801, 18, 16, 0 }, 33 { 0x3801, 19, 17, 0 }, 34 { 0x3401, 20, 18, 0 }, 35 { 0x3001, 21, 19, 0 }, 36 { 0x2801, 22, 19, 0 }, 37 { 0x2401, 23, 20, 0 }, 38 { 0x2201, 24, 21, 0 }, 39 { 0x1C01, 25, 22, 0 }, 40 { 0x1801, 26, 23, 0 }, 41 { 0x1601, 27, 24, 0 }, 42 { 0x1401, 28, 25, 0 }, 43 { 0x1201, 29, 26, 0 }, 44 { 0x1101, 30, 27, 0 }, 45 { 0x0AC1, 31, 28, 0 }, 46 { 0x09C1, 32, 29, 0 }, 47 { 0x08A1, 33, 30, 0 }, 48 { 0x0521, 34, 31, 0 }, 49 { 0x0441, 35, 32, 0 }, 50 { 0x02A1, 36, 33, 0 }, 51 { 0x0221, 37, 34, 0 }, 52 { 0x0141, 38, 35, 0 }, 53 { 0x0111, 39, 36, 0 }, 54 { 0x0085, 40, 37, 0 }, 55 { 0x0049, 41, 38, 0 }, 56 { 0x0025, 42, 39, 0 }, 57 { 0x0015, 43, 40, 0 }, 58 { 0x0009, 44, 41, 0 }, 59 { 0x0005, 45, 42, 0 }, 60 { 0x0001, 45, 43, 0 }, 61 { 0x5601, 46, 46, 0 } 62 }; 63 64 extern const unsigned int JBIG2_QE_NUM = sizeof(QeTable) / sizeof(JBig2ArithQe); 65 66 CJBig2_Image *CJBig2_GRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 67 { 68 if (GBW == 0 || GBH == 0) { 69 CJBig2_Image* pImage; 70 JBIG2_ALLOC(pImage, CJBig2_Image(GBW, GBH)); 71 return pImage; 72 } 73 if(GBTEMPLATE == 0) { 74 if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1) 75 && (GBAT[2] == (signed char) - 3) && (GBAT[3] == (signed char) - 1) 76 && (GBAT[4] == 2) && (GBAT[5] == (signed char) - 2) 77 && (GBAT[6] == (signed char) - 2) && (GBAT[7] == (signed char) - 2)) { 78 return decode_Arith_Template0_opt3(pArithDecoder, gbContext); 79 } else { 80 return decode_Arith_Template0_unopt(pArithDecoder, gbContext); 81 } 82 } else if(GBTEMPLATE == 1) { 83 if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1)) { 84 return decode_Arith_Template1_opt3(pArithDecoder, gbContext); 85 } else { 86 return decode_Arith_Template1_unopt(pArithDecoder, gbContext); 87 } 88 } else if(GBTEMPLATE == 2) { 89 if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { 90 return decode_Arith_Template2_opt3(pArithDecoder, gbContext); 91 } else { 92 return decode_Arith_Template2_unopt(pArithDecoder, gbContext); 93 } 94 } else { 95 if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { 96 return decode_Arith_Template3_opt3(pArithDecoder, gbContext); 97 } else { 98 return decode_Arith_Template3_unopt(pArithDecoder, gbContext); 99 } 100 } 101 } 102 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 103 { 104 FX_BOOL LTP, SLTP, bVal; 105 FX_DWORD CONTEXT; 106 CJBig2_Image *GBREG; 107 FX_DWORD line1, line2, line3; 108 LTP = 0; 109 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 110 GBREG->fill(0); 111 for(FX_DWORD h = 0; h < GBH; h++) { 112 if(TPGDON) { 113 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 114 LTP = LTP ^ SLTP; 115 } 116 if(LTP == 1) { 117 GBREG->copyLine(h, h - 1); 118 } else { 119 line1 = GBREG->getPixel(2, h - 2); 120 line1 |= GBREG->getPixel(1, h - 2) << 1; 121 line1 |= GBREG->getPixel(0, h - 2) << 2; 122 line2 = GBREG->getPixel(3, h - 1); 123 line2 |= GBREG->getPixel(2, h - 1) << 1; 124 line2 |= GBREG->getPixel(1, h - 1) << 2; 125 line2 |= GBREG->getPixel(0, h - 1) << 3; 126 line3 = 0; 127 for(FX_DWORD w = 0; w < GBW; w++) { 128 if(USESKIP && SKIP->getPixel(w, h)) { 129 bVal = 0; 130 } else { 131 CONTEXT = line3; 132 CONTEXT |= line2 << 4; 133 CONTEXT |= line1 << 11; 134 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 135 } 136 if(bVal) { 137 GBREG->setPixel(w, h, bVal); 138 } 139 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x1f; 140 line2 = ((line2 << 1) | GBREG->getPixel(w + 4, h - 1)) & 0x7f; 141 line3 = ((line3 << 1) | bVal) & 0x0f; 142 } 143 } 144 } 145 return GBREG; 146 } 147 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 148 { 149 FX_BOOL LTP, SLTP, bVal; 150 FX_DWORD CONTEXT; 151 CJBig2_Image *GBREG; 152 FX_DWORD line1, line2; 153 FX_BYTE *pLine, cVal; 154 FX_INTPTR nStride, nStride2; 155 FX_INT32 nBits, k; 156 LTP = 0; 157 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 158 if (GBREG->m_pData == NULL) { 159 delete GBREG; 160 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 161 return NULL; 162 } 163 pLine = GBREG->m_pData; 164 nStride = GBREG->m_nStride; 165 nStride2 = nStride << 1; 166 for(FX_DWORD h = 0; h < GBH; h++) { 167 if(TPGDON) { 168 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 169 LTP = LTP ^ SLTP; 170 } 171 if(LTP == 1) { 172 GBREG->copyLine(h, h - 1); 173 } else { 174 line1 = (h > 1) ? pLine[-nStride2] << 6 : 0; 175 line2 = (h > 0) ? pLine[-nStride] : 0; 176 CONTEXT = (line1 & 0xf800) | (line2 & 0x07f0); 177 for(FX_DWORD w = 0; w < GBW; w += 8) { 178 if(w + 8 < GBW) { 179 nBits = 8; 180 if(h > 1) { 181 line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 6); 182 } 183 if(h > 0) { 184 line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); 185 } 186 } else { 187 nBits = GBW - w; 188 if(h > 1) { 189 line1 <<= 8; 190 } 191 if(h > 0) { 192 line2 <<= 8; 193 } 194 } 195 cVal = 0; 196 for(k = 0; k < nBits; k++) { 197 if(USESKIP && SKIP->getPixel(w, h)) { 198 bVal = 0; 199 } else { 200 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 201 } 202 cVal |= bVal << (7 - k); 203 CONTEXT = ((CONTEXT & 0x7bf7) << 1) | bVal 204 | ((line1 >> (7 - k)) & 0x0800) 205 | ((line2 >> (7 - k)) & 0x0010); 206 } 207 pLine[w >> 3] = cVal; 208 } 209 } 210 pLine += nStride; 211 } 212 return GBREG; 213 } 214 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 215 { 216 FX_BOOL LTP, SLTP, bVal; 217 FX_DWORD CONTEXT; 218 CJBig2_Image *GBREG; 219 FX_DWORD line1, line2; 220 FX_BYTE *pLine, *pLine1, *pLine2, cVal; 221 FX_INT32 nStride, nStride2, k; 222 FX_INT32 nLineBytes, nBitsLeft, cc; 223 LTP = 0; 224 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 225 if (GBREG->m_pData == NULL) { 226 delete GBREG; 227 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 228 return NULL; 229 } 230 pLine = GBREG->m_pData; 231 nStride = GBREG->m_nStride; 232 nStride2 = nStride << 1; 233 nLineBytes = ((GBW + 7) >> 3) - 1; 234 nBitsLeft = GBW - (nLineBytes << 3); 235 FX_DWORD height = GBH & 0x7fffffff; 236 for(FX_DWORD h = 0; h < height; h++) { 237 if(TPGDON) { 238 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 239 LTP = LTP ^ SLTP; 240 } 241 if(LTP == 1) { 242 GBREG->copyLine(h, h - 1); 243 } else { 244 if(h > 1) { 245 pLine1 = pLine - nStride2; 246 pLine2 = pLine - nStride; 247 line1 = (*pLine1++) << 6; 248 line2 = *pLine2++; 249 CONTEXT = ((line1 & 0xf800) | (line2 & 0x07f0)); 250 for(cc = 0; cc < nLineBytes; cc++) { 251 line1 = (line1 << 8) | ((*pLine1++) << 6); 252 line2 = (line2 << 8) | (*pLine2++); 253 cVal = 0; 254 for(k = 7; k >= 0; k--) { 255 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 256 cVal |= bVal << k; 257 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 258 | ((line1 >> k) & 0x0800) 259 | ((line2 >> k) & 0x0010)); 260 } 261 pLine[cc] = cVal; 262 } 263 line1 <<= 8; 264 line2 <<= 8; 265 cVal = 0; 266 for(k = 0; k < nBitsLeft; k++) { 267 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 268 cVal |= bVal << (7 - k); 269 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 270 | ((line1 >> (7 - k)) & 0x0800) 271 | ((line2 >> (7 - k)) & 0x0010)); 272 } 273 pLine[nLineBytes] = cVal; 274 } else { 275 pLine2 = pLine - nStride; 276 line2 = (h & 1) ? (*pLine2++) : 0; 277 CONTEXT = (line2 & 0x07f0); 278 for(cc = 0; cc < nLineBytes; cc++) { 279 if(h & 1) { 280 line2 = (line2 << 8) | (*pLine2++); 281 } 282 cVal = 0; 283 for(k = 7; k >= 0; k--) { 284 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 285 cVal |= bVal << k; 286 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 287 | ((line2 >> k) & 0x0010)); 288 } 289 pLine[cc] = cVal; 290 } 291 line2 <<= 8; 292 cVal = 0; 293 for(k = 0; k < nBitsLeft; k++) { 294 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 295 cVal |= bVal << (7 - k); 296 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 297 | (((line2 >> (7 - k))) & 0x0010)); 298 } 299 pLine[nLineBytes] = cVal; 300 } 301 } 302 pLine += nStride; 303 } 304 return GBREG; 305 } 306 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 307 { 308 FX_BOOL LTP, SLTP, bVal; 309 FX_DWORD CONTEXT; 310 CJBig2_Image *GBREG; 311 FX_DWORD line1, line2, line3; 312 LTP = 0; 313 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 314 GBREG->fill(0); 315 for(FX_DWORD h = 0; h < GBH; h++) { 316 if(TPGDON) { 317 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 318 LTP = LTP ^ SLTP; 319 } 320 if(LTP == 1) { 321 GBREG->copyLine(h, h - 1); 322 } else { 323 line1 = GBREG->getPixel(1, h - 2); 324 line1 |= GBREG->getPixel(0, h - 2) << 1; 325 line2 = GBREG->getPixel(2, h - 1); 326 line2 |= GBREG->getPixel(1, h - 1) << 1; 327 line2 |= GBREG->getPixel(0, h - 1) << 2; 328 line3 = 0; 329 for(FX_DWORD w = 0; w < GBW; w++) { 330 if(USESKIP && SKIP->getPixel(w, h)) { 331 bVal = 0; 332 } else { 333 CONTEXT = line3; 334 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 335 CONTEXT |= line2 << 5; 336 CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; 337 CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; 338 CONTEXT |= line1 << 12; 339 CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; 340 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 341 } 342 if(bVal) { 343 GBREG->setPixel(w, h, bVal); 344 } 345 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 346 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 347 line3 = ((line3 << 1) | bVal) & 0x0f; 348 } 349 } 350 } 351 return GBREG; 352 } 353 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 354 { 355 FX_BOOL LTP, SLTP, bVal; 356 FX_DWORD CONTEXT; 357 CJBig2_Image *GBREG; 358 FX_DWORD line1, line2, line3; 359 LTP = 0; 360 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 361 GBREG->fill(0); 362 for(FX_DWORD h = 0; h < GBH; h++) { 363 if(TPGDON) { 364 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 365 LTP = LTP ^ SLTP; 366 } 367 if(LTP == 1) { 368 GBREG->copyLine(h, h - 1); 369 } else { 370 line1 = GBREG->getPixel(2, h - 2); 371 line1 |= GBREG->getPixel(1, h - 2) << 1; 372 line1 |= GBREG->getPixel(0, h - 2) << 2; 373 line2 = GBREG->getPixel(3, h - 1); 374 line2 |= GBREG->getPixel(2, h - 1) << 1; 375 line2 |= GBREG->getPixel(1, h - 1) << 2; 376 line2 |= GBREG->getPixel(0, h - 1) << 3; 377 line3 = 0; 378 for(FX_DWORD w = 0; w < GBW; w++) { 379 if(USESKIP && SKIP->getPixel(w, h)) { 380 bVal = 0; 381 } else { 382 CONTEXT = line3; 383 CONTEXT |= line2 << 3; 384 CONTEXT |= line1 << 9; 385 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 386 } 387 if(bVal) { 388 GBREG->setPixel(w, h, bVal); 389 } 390 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; 391 line2 = ((line2 << 1) | GBREG->getPixel(w + 4, h - 1)) & 0x3f; 392 line3 = ((line3 << 1) | bVal) & 0x07; 393 } 394 } 395 } 396 return GBREG; 397 } 398 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 399 { 400 FX_BOOL LTP, SLTP, bVal; 401 FX_DWORD CONTEXT; 402 CJBig2_Image *GBREG; 403 FX_DWORD line1, line2; 404 FX_BYTE *pLine, cVal; 405 FX_INTPTR nStride, nStride2; 406 FX_INT32 nBits, k; 407 LTP = 0; 408 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 409 if (GBREG->m_pData == NULL) { 410 delete GBREG; 411 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 412 return NULL; 413 } 414 pLine = GBREG->m_pData; 415 nStride = GBREG->m_nStride; 416 nStride2 = nStride << 1; 417 for(FX_DWORD h = 0; h < GBH; h++) { 418 if(TPGDON) { 419 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 420 LTP = LTP ^ SLTP; 421 } 422 if(LTP == 1) { 423 GBREG->copyLine(h, h - 1); 424 } else { 425 line1 = (h > 1) ? pLine[-nStride2] << 4 : 0; 426 line2 = (h > 0) ? pLine[-nStride] : 0; 427 CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); 428 for(FX_DWORD w = 0; w < GBW; w += 8) { 429 if(w + 8 < GBW) { 430 nBits = 8; 431 if(h > 1) { 432 line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 4); 433 } 434 if(h > 0) { 435 line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); 436 } 437 } else { 438 nBits = GBW - w; 439 if(h > 1) { 440 line1 <<= 8; 441 } 442 if(h > 0) { 443 line2 <<= 8; 444 } 445 } 446 cVal = 0; 447 for(k = 0; k < nBits; k++) { 448 if(USESKIP && SKIP->getPixel(w, h)) { 449 bVal = 0; 450 } else { 451 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 452 } 453 cVal |= bVal << (7 - k); 454 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 455 | ((line1 >> (7 - k)) & 0x0200) 456 | ((line2 >> (8 - k)) & 0x0008); 457 } 458 pLine[w >> 3] = cVal; 459 } 460 } 461 pLine += nStride; 462 } 463 return GBREG; 464 } 465 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 466 { 467 FX_BOOL LTP, SLTP, bVal; 468 FX_DWORD CONTEXT; 469 CJBig2_Image *GBREG; 470 FX_DWORD line1, line2; 471 FX_BYTE *pLine, *pLine1, *pLine2, cVal; 472 FX_INT32 nStride, nStride2, k; 473 FX_INT32 nLineBytes, nBitsLeft, cc; 474 LTP = 0; 475 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 476 if (GBREG->m_pData == NULL) { 477 delete GBREG; 478 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 479 return NULL; 480 } 481 pLine = GBREG->m_pData; 482 nStride = GBREG->m_nStride; 483 nStride2 = nStride << 1; 484 nLineBytes = ((GBW + 7) >> 3) - 1; 485 nBitsLeft = GBW - (nLineBytes << 3); 486 for(FX_DWORD h = 0; h < GBH; h++) { 487 if(TPGDON) { 488 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 489 LTP = LTP ^ SLTP; 490 } 491 if(LTP == 1) { 492 GBREG->copyLine(h, h - 1); 493 } else { 494 if(h > 1) { 495 pLine1 = pLine - nStride2; 496 pLine2 = pLine - nStride; 497 line1 = (*pLine1++) << 4; 498 line2 = *pLine2++; 499 CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); 500 for(cc = 0; cc < nLineBytes; cc++) { 501 line1 = (line1 << 8) | ((*pLine1++) << 4); 502 line2 = (line2 << 8) | (*pLine2++); 503 cVal = 0; 504 for(k = 7; k >= 0; k--) { 505 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 506 cVal |= bVal << k; 507 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 508 | ((line1 >> k) & 0x0200) 509 | ((line2 >> (k + 1)) & 0x0008); 510 } 511 pLine[cc] = cVal; 512 } 513 line1 <<= 8; 514 line2 <<= 8; 515 cVal = 0; 516 for(k = 0; k < nBitsLeft; k++) { 517 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 518 cVal |= bVal << (7 - k); 519 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 520 | ((line1 >> (7 - k)) & 0x0200) 521 | ((line2 >> (8 - k)) & 0x0008); 522 } 523 pLine[nLineBytes] = cVal; 524 } else { 525 pLine2 = pLine - nStride; 526 line2 = (h & 1) ? (*pLine2++) : 0; 527 CONTEXT = (line2 >> 1) & 0x01f8; 528 for(cc = 0; cc < nLineBytes; cc++) { 529 if(h & 1) { 530 line2 = (line2 << 8) | (*pLine2++); 531 } 532 cVal = 0; 533 for(k = 7; k >= 0; k--) { 534 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 535 cVal |= bVal << k; 536 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 537 | ((line2 >> (k + 1)) & 0x0008); 538 } 539 pLine[cc] = cVal; 540 } 541 line2 <<= 8; 542 cVal = 0; 543 for(k = 0; k < nBitsLeft; k++) { 544 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 545 cVal |= bVal << (7 - k); 546 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 547 | ((line2 >> (8 - k)) & 0x0008); 548 } 549 pLine[nLineBytes] = cVal; 550 } 551 } 552 pLine += nStride; 553 } 554 return GBREG; 555 } 556 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 557 { 558 FX_BOOL LTP, SLTP, bVal; 559 FX_DWORD CONTEXT; 560 CJBig2_Image *GBREG; 561 FX_DWORD line1, line2, line3; 562 LTP = 0; 563 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 564 GBREG->fill(0); 565 for(FX_DWORD h = 0; h < GBH; h++) { 566 if(TPGDON) { 567 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 568 LTP = LTP ^ SLTP; 569 } 570 if(LTP == 1) { 571 GBREG->copyLine(h, h - 1); 572 } else { 573 line1 = GBREG->getPixel(2, h - 2); 574 line1 |= GBREG->getPixel(1, h - 2) << 1; 575 line1 |= GBREG->getPixel(0, h - 2) << 2; 576 line2 = GBREG->getPixel(2, h - 1); 577 line2 |= GBREG->getPixel(1, h - 1) << 1; 578 line2 |= GBREG->getPixel(0, h - 1) << 2; 579 line3 = 0; 580 for(FX_DWORD w = 0; w < GBW; w++) { 581 if(USESKIP && SKIP->getPixel(w, h)) { 582 bVal = 0; 583 } else { 584 CONTEXT = line3; 585 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; 586 CONTEXT |= line2 << 4; 587 CONTEXT |= line1 << 9; 588 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 589 } 590 if(bVal) { 591 GBREG->setPixel(w, h, bVal); 592 } 593 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; 594 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 595 line3 = ((line3 << 1) | bVal) & 0x07; 596 } 597 } 598 } 599 return GBREG; 600 } 601 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 602 { 603 FX_BOOL LTP, SLTP, bVal; 604 FX_DWORD CONTEXT; 605 CJBig2_Image *GBREG; 606 FX_DWORD line1, line2, line3; 607 LTP = 0; 608 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 609 GBREG->fill(0); 610 for(FX_DWORD h = 0; h < GBH; h++) { 611 if(TPGDON) { 612 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 613 LTP = LTP ^ SLTP; 614 } 615 if(LTP == 1) { 616 GBREG->copyLine(h, h - 1); 617 } else { 618 line1 = GBREG->getPixel(1, h - 2); 619 line1 |= GBREG->getPixel(0, h - 2) << 1; 620 line2 = GBREG->getPixel(2, h - 1); 621 line2 |= GBREG->getPixel(1, h - 1) << 1; 622 line2 |= GBREG->getPixel(0, h - 1) << 2; 623 line3 = 0; 624 for(FX_DWORD w = 0; w < GBW; w++) { 625 if(USESKIP && SKIP->getPixel(w, h)) { 626 bVal = 0; 627 } else { 628 CONTEXT = line3; 629 CONTEXT |= line2 << 2; 630 CONTEXT |= line1 << 7; 631 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 632 } 633 if(bVal) { 634 GBREG->setPixel(w, h, bVal); 635 } 636 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 637 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 638 line3 = ((line3 << 1) | bVal) & 0x03; 639 } 640 } 641 } 642 return GBREG; 643 } 644 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 645 { 646 FX_BOOL LTP, SLTP, bVal; 647 FX_DWORD CONTEXT; 648 CJBig2_Image *GBREG; 649 FX_DWORD line1, line2; 650 FX_BYTE *pLine, cVal; 651 FX_INTPTR nStride, nStride2; 652 FX_INT32 nBits, k; 653 LTP = 0; 654 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 655 if (GBREG->m_pData == NULL) { 656 delete GBREG; 657 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 658 return NULL; 659 } 660 pLine = GBREG->m_pData; 661 nStride = GBREG->m_nStride; 662 nStride2 = nStride << 1; 663 for(FX_DWORD h = 0; h < GBH; h++) { 664 if(TPGDON) { 665 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 666 LTP = LTP ^ SLTP; 667 } 668 if(LTP == 1) { 669 GBREG->copyLine(h, h - 1); 670 } else { 671 line1 = (h > 1) ? pLine[-nStride2] << 1 : 0; 672 line2 = (h > 0) ? pLine[-nStride] : 0; 673 CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); 674 for(FX_DWORD w = 0; w < GBW; w += 8) { 675 if(w + 8 < GBW) { 676 nBits = 8; 677 if(h > 1) { 678 line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 1); 679 } 680 if(h > 0) { 681 line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); 682 } 683 } else { 684 nBits = GBW - w; 685 if(h > 1) { 686 line1 <<= 8; 687 } 688 if(h > 0) { 689 line2 <<= 8; 690 } 691 } 692 cVal = 0; 693 for(k = 0; k < nBits; k++) { 694 if(USESKIP && SKIP->getPixel(w, h)) { 695 bVal = 0; 696 } else { 697 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 698 } 699 cVal |= bVal << (7 - k); 700 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 701 | ((line1 >> (7 - k)) & 0x0080) 702 | ((line2 >> (10 - k)) & 0x0004); 703 } 704 pLine[w >> 3] = cVal; 705 } 706 } 707 pLine += nStride; 708 } 709 return GBREG; 710 } 711 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 712 { 713 FX_BOOL LTP, SLTP, bVal; 714 FX_DWORD CONTEXT; 715 CJBig2_Image *GBREG; 716 FX_DWORD line1, line2; 717 FX_BYTE *pLine, *pLine1, *pLine2, cVal; 718 FX_INT32 nStride, nStride2, k; 719 FX_INT32 nLineBytes, nBitsLeft, cc; 720 LTP = 0; 721 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 722 if (GBREG->m_pData == NULL) { 723 delete GBREG; 724 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 725 return NULL; 726 } 727 pLine = GBREG->m_pData; 728 nStride = GBREG->m_nStride; 729 nStride2 = nStride << 1; 730 nLineBytes = ((GBW + 7) >> 3) - 1; 731 nBitsLeft = GBW - (nLineBytes << 3); 732 for(FX_DWORD h = 0; h < GBH; h++) { 733 if(TPGDON) { 734 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 735 LTP = LTP ^ SLTP; 736 } 737 if(LTP == 1) { 738 GBREG->copyLine(h, h - 1); 739 } else { 740 if(h > 1) { 741 pLine1 = pLine - nStride2; 742 pLine2 = pLine - nStride; 743 line1 = (*pLine1++) << 1; 744 line2 = *pLine2++; 745 CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); 746 for(cc = 0; cc < nLineBytes; cc++) { 747 line1 = (line1 << 8) | ((*pLine1++) << 1); 748 line2 = (line2 << 8) | (*pLine2++); 749 cVal = 0; 750 for(k = 7; k >= 0; k--) { 751 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 752 cVal |= bVal << k; 753 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 754 | ((line1 >> k) & 0x0080) 755 | ((line2 >> (k + 3)) & 0x0004); 756 } 757 pLine[cc] = cVal; 758 } 759 line1 <<= 8; 760 line2 <<= 8; 761 cVal = 0; 762 for(k = 0; k < nBitsLeft; k++) { 763 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 764 cVal |= bVal << (7 - k); 765 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 766 | ((line1 >> (7 - k)) & 0x0080) 767 | ((line2 >> (10 - k)) & 0x0004); 768 } 769 pLine[nLineBytes] = cVal; 770 } else { 771 pLine2 = pLine - nStride; 772 line2 = (h & 1) ? (*pLine2++) : 0; 773 CONTEXT = (line2 >> 3) & 0x007c; 774 for(cc = 0; cc < nLineBytes; cc++) { 775 if(h & 1) { 776 line2 = (line2 << 8) | (*pLine2++); 777 } 778 cVal = 0; 779 for(k = 7; k >= 0; k--) { 780 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 781 cVal |= bVal << k; 782 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 783 | ((line2 >> (k + 3)) & 0x0004); 784 } 785 pLine[cc] = cVal; 786 } 787 line2 <<= 8; 788 cVal = 0; 789 for(k = 0; k < nBitsLeft; k++) { 790 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 791 cVal |= bVal << (7 - k); 792 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 793 | (((line2 >> (10 - k))) & 0x0004); 794 } 795 pLine[nLineBytes] = cVal; 796 } 797 } 798 pLine += nStride; 799 } 800 return GBREG; 801 } 802 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 803 { 804 FX_BOOL LTP, SLTP, bVal; 805 FX_DWORD CONTEXT; 806 CJBig2_Image *GBREG; 807 FX_DWORD line1, line2, line3; 808 LTP = 0; 809 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 810 GBREG->fill(0); 811 for(FX_DWORD h = 0; h < GBH; h++) { 812 if(TPGDON) { 813 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 814 LTP = LTP ^ SLTP; 815 } 816 if(LTP == 1) { 817 GBREG->copyLine(h, h - 1); 818 } else { 819 line1 = GBREG->getPixel(1, h - 2); 820 line1 |= GBREG->getPixel(0, h - 2) << 1; 821 line2 = GBREG->getPixel(1, h - 1); 822 line2 |= GBREG->getPixel(0, h - 1) << 1; 823 line3 = 0; 824 for(FX_DWORD w = 0; w < GBW; w++) { 825 if(USESKIP && SKIP->getPixel(w, h)) { 826 bVal = 0; 827 } else { 828 CONTEXT = line3; 829 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; 830 CONTEXT |= line2 << 3; 831 CONTEXT |= line1 << 7; 832 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 833 } 834 if(bVal) { 835 GBREG->setPixel(w, h, bVal); 836 } 837 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 838 line2 = ((line2 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x0f; 839 line3 = ((line3 << 1) | bVal) & 0x03; 840 } 841 } 842 } 843 return GBREG; 844 } 845 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 846 { 847 FX_BOOL LTP, SLTP, bVal; 848 FX_DWORD CONTEXT; 849 CJBig2_Image *GBREG; 850 FX_DWORD line1, line2; 851 LTP = 0; 852 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 853 GBREG->fill(0); 854 for(FX_DWORD h = 0; h < GBH; h++) { 855 if(TPGDON) { 856 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 857 LTP = LTP ^ SLTP; 858 } 859 if(LTP == 1) { 860 GBREG->copyLine(h, h - 1); 861 } else { 862 line1 = GBREG->getPixel(2, h - 1); 863 line1 |= GBREG->getPixel(1, h - 1) << 1; 864 line1 |= GBREG->getPixel(0, h - 1) << 2; 865 line2 = 0; 866 for(FX_DWORD w = 0; w < GBW; w++) { 867 if(USESKIP && SKIP->getPixel(w, h)) { 868 bVal = 0; 869 } else { 870 CONTEXT = line2; 871 CONTEXT |= line1 << 4; 872 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 873 } 874 if(bVal) { 875 GBREG->setPixel(w, h, bVal); 876 } 877 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x3f; 878 line2 = ((line2 << 1) | bVal) & 0x0f; 879 } 880 } 881 } 882 return GBREG; 883 } 884 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 885 { 886 FX_BOOL LTP, SLTP, bVal; 887 FX_DWORD CONTEXT; 888 CJBig2_Image *GBREG; 889 FX_DWORD line1; 890 FX_BYTE *pLine, cVal; 891 FX_INTPTR nStride; 892 FX_INT32 nBits, k; 893 LTP = 0; 894 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 895 if (GBREG->m_pData == NULL) { 896 delete GBREG; 897 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 898 return NULL; 899 } 900 pLine = GBREG->m_pData; 901 nStride = GBREG->m_nStride; 902 for(FX_DWORD h = 0; h < GBH; h++) { 903 if(TPGDON) { 904 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 905 LTP = LTP ^ SLTP; 906 } 907 if(LTP == 1) { 908 GBREG->copyLine(h, h - 1); 909 } else { 910 line1 = (h > 0) ? pLine[-nStride] : 0; 911 CONTEXT = (line1 >> 1) & 0x03f0; 912 for(FX_DWORD w = 0; w < GBW; w += 8) { 913 if(w + 8 < GBW) { 914 nBits = 8; 915 if(h > 0) { 916 line1 = (line1 << 8) | (pLine[-nStride + (w >> 3) + 1]); 917 } 918 } else { 919 nBits = GBW - w; 920 if(h > 0) { 921 line1 <<= 8; 922 } 923 } 924 cVal = 0; 925 for(k = 0; k < nBits; k++) { 926 if(USESKIP && SKIP->getPixel(w, h)) { 927 bVal = 0; 928 } else { 929 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 930 } 931 cVal |= bVal << (7 - k); 932 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 933 | ((line1 >> (8 - k)) & 0x0010); 934 } 935 pLine[w >> 3] = cVal; 936 } 937 } 938 pLine += nStride; 939 } 940 return GBREG; 941 } 942 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 943 { 944 FX_BOOL LTP, SLTP, bVal; 945 FX_DWORD CONTEXT; 946 CJBig2_Image *GBREG; 947 FX_DWORD line1; 948 FX_BYTE *pLine, *pLine1, cVal; 949 FX_INT32 nStride, k; 950 FX_INT32 nLineBytes, nBitsLeft, cc; 951 LTP = 0; 952 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 953 if (GBREG->m_pData == NULL) { 954 delete GBREG; 955 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 956 return NULL; 957 } 958 pLine = GBREG->m_pData; 959 nStride = GBREG->m_nStride; 960 nLineBytes = ((GBW + 7) >> 3) - 1; 961 nBitsLeft = GBW - (nLineBytes << 3); 962 for(FX_DWORD h = 0; h < GBH; h++) { 963 if(TPGDON) { 964 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 965 LTP = LTP ^ SLTP; 966 } 967 if(LTP == 1) { 968 GBREG->copyLine(h, h - 1); 969 } else { 970 if(h > 0) { 971 pLine1 = pLine - nStride; 972 line1 = *pLine1++; 973 CONTEXT = (line1 >> 1) & 0x03f0; 974 for(cc = 0; cc < nLineBytes; cc++) { 975 line1 = (line1 << 8) | (*pLine1++); 976 cVal = 0; 977 for(k = 7; k >= 0; k--) { 978 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 979 cVal |= bVal << k; 980 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 981 | ((line1 >> (k + 1)) & 0x0010); 982 } 983 pLine[cc] = cVal; 984 } 985 line1 <<= 8; 986 cVal = 0; 987 for(k = 0; k < nBitsLeft; k++) { 988 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 989 cVal |= bVal << (7 - k); 990 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 991 | ((line1 >> (8 - k)) & 0x0010); 992 } 993 pLine[nLineBytes] = cVal; 994 } else { 995 CONTEXT = 0; 996 for(cc = 0; cc < nLineBytes; cc++) { 997 cVal = 0; 998 for(k = 7; k >= 0; k--) { 999 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1000 cVal |= bVal << k; 1001 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; 1002 } 1003 pLine[cc] = cVal; 1004 } 1005 cVal = 0; 1006 for(k = 0; k < nBitsLeft; k++) { 1007 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1008 cVal |= bVal << (7 - k); 1009 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; 1010 } 1011 pLine[nLineBytes] = cVal; 1012 } 1013 } 1014 pLine += nStride; 1015 } 1016 return GBREG; 1017 } 1018 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 1019 { 1020 FX_BOOL LTP, SLTP, bVal; 1021 FX_DWORD CONTEXT; 1022 CJBig2_Image *GBREG; 1023 FX_DWORD line1, line2; 1024 LTP = 0; 1025 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 1026 GBREG->fill(0); 1027 for(FX_DWORD h = 0; h < GBH; h++) { 1028 if(TPGDON) { 1029 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 1030 LTP = LTP ^ SLTP; 1031 } 1032 if(LTP == 1) { 1033 GBREG->copyLine(h, h - 1); 1034 } else { 1035 line1 = GBREG->getPixel(1, h - 1); 1036 line1 |= GBREG->getPixel(0, h - 1) << 1; 1037 line2 = 0; 1038 for(FX_DWORD w = 0; w < GBW; w++) { 1039 if(USESKIP && SKIP->getPixel(w, h)) { 1040 bVal = 0; 1041 } else { 1042 CONTEXT = line2; 1043 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1044 CONTEXT |= line1 << 5; 1045 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1046 } 1047 if(bVal) { 1048 GBREG->setPixel(w, h, bVal); 1049 } 1050 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x1f; 1051 line2 = ((line2 << 1) | bVal) & 0x0f; 1052 } 1053 } 1054 } 1055 return GBREG; 1056 } 1057 CJBig2_Image *CJBig2_GRDProc::decode_Arith_V2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 1058 { 1059 FX_BOOL LTP, SLTP, bVal; 1060 FX_DWORD CONTEXT; 1061 CJBig2_Image *GBREG; 1062 FX_DWORD line1, line2, line3; 1063 LTP = 0; 1064 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 1065 GBREG->fill(0); 1066 for(FX_DWORD h = 0; h < GBH; h++) { 1067 if(TPGDON) { 1068 switch(GBTEMPLATE) { 1069 case 0: 1070 CONTEXT = 0x9b25; 1071 break; 1072 case 1: 1073 CONTEXT = 0x0795; 1074 break; 1075 case 2: 1076 CONTEXT = 0x00e5; 1077 break; 1078 case 3: 1079 CONTEXT = 0x0195; 1080 break; 1081 } 1082 SLTP = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1083 LTP = LTP ^ SLTP; 1084 } 1085 if(LTP == 1) { 1086 GBREG->copyLine(h, h - 1); 1087 } else { 1088 switch(GBTEMPLATE) { 1089 case 0: { 1090 line1 = GBREG->getPixel(1, h - 2); 1091 line1 |= GBREG->getPixel(0, h - 2) << 1; 1092 line2 = GBREG->getPixel(2, h - 1); 1093 line2 |= GBREG->getPixel(1, h - 1) << 1; 1094 line2 |= GBREG->getPixel(0, h - 1) << 2; 1095 line3 = 0; 1096 for(FX_DWORD w = 0; w < GBW; w++) { 1097 if(USESKIP && SKIP->getPixel(w, h)) { 1098 bVal = 0; 1099 } else { 1100 CONTEXT = line3; 1101 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1102 CONTEXT |= line2 << 5; 1103 CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; 1104 CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; 1105 CONTEXT |= line1 << 12; 1106 CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; 1107 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1108 } 1109 if(bVal) { 1110 GBREG->setPixel(w, h, bVal); 1111 } 1112 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 1113 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 1114 line3 = ((line3 << 1) | bVal) & 0x0f; 1115 } 1116 } 1117 break; 1118 case 1: { 1119 line1 = GBREG->getPixel(2, h - 2); 1120 line1 |= GBREG->getPixel(1, h - 2) << 1; 1121 line1 |= GBREG->getPixel(0, h - 2) << 2; 1122 line2 = GBREG->getPixel(2, h - 1); 1123 line2 |= GBREG->getPixel(1, h - 1) << 1; 1124 line2 |= GBREG->getPixel(0, h - 1) << 2; 1125 line3 = 0; 1126 for(FX_DWORD w = 0; w < GBW; w++) { 1127 if(USESKIP && SKIP->getPixel(w, h)) { 1128 bVal = 0; 1129 } else { 1130 CONTEXT = line3; 1131 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; 1132 CONTEXT |= line2 << 4; 1133 CONTEXT |= line1 << 9; 1134 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1135 } 1136 if(bVal) { 1137 GBREG->setPixel(w, h, bVal); 1138 } 1139 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; 1140 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 1141 line3 = ((line3 << 1) | bVal) & 0x07; 1142 } 1143 } 1144 break; 1145 case 2: { 1146 line1 = GBREG->getPixel(1, h - 2); 1147 line1 |= GBREG->getPixel(0, h - 2) << 1; 1148 line2 = GBREG->getPixel(1, h - 1); 1149 line2 |= GBREG->getPixel(0, h - 1) << 1; 1150 line3 = 0; 1151 for(FX_DWORD w = 0; w < GBW; w++) { 1152 if(USESKIP && SKIP->getPixel(w, h)) { 1153 bVal = 0; 1154 } else { 1155 CONTEXT = line3; 1156 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; 1157 CONTEXT |= line2 << 3; 1158 CONTEXT |= line1 << 7; 1159 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1160 } 1161 if(bVal) { 1162 GBREG->setPixel(w, h, bVal); 1163 } 1164 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 1165 line2 = ((line2 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x0f; 1166 line3 = ((line3 << 1) | bVal) & 0x03; 1167 } 1168 } 1169 break; 1170 case 3: { 1171 line1 = GBREG->getPixel(1, h - 1); 1172 line1 |= GBREG->getPixel(0, h - 1) << 1; 1173 line2 = 0; 1174 for(FX_DWORD w = 0; w < GBW; w++) { 1175 if(USESKIP && SKIP->getPixel(w, h)) { 1176 bVal = 0; 1177 } else { 1178 CONTEXT = line2; 1179 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1180 CONTEXT |= line1 << 5; 1181 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1182 } 1183 if(bVal) { 1184 GBREG->setPixel(w, h, bVal); 1185 } 1186 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x1f; 1187 line2 = ((line2 << 1) | bVal) & 0x0f; 1188 } 1189 } 1190 break; 1191 } 1192 } 1193 } 1194 return GBREG; 1195 } 1196 CJBig2_Image *CJBig2_GRDProc::decode_Arith_V1(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 1197 { 1198 FX_BOOL LTP, SLTP, bVal; 1199 FX_DWORD CONTEXT = 0; 1200 CJBig2_Image *GBREG; 1201 LTP = 0; 1202 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 1203 GBREG->fill(0); 1204 for(FX_DWORD h = 0; h < GBH; h++) { 1205 if(TPGDON) { 1206 switch(GBTEMPLATE) { 1207 case 0: 1208 CONTEXT = 0x9b25; 1209 break; 1210 case 1: 1211 CONTEXT = 0x0795; 1212 break; 1213 case 2: 1214 CONTEXT = 0x00e5; 1215 break; 1216 case 3: 1217 CONTEXT = 0x0195; 1218 break; 1219 } 1220 SLTP = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1221 LTP = LTP ^ SLTP; 1222 } 1223 if(LTP == 1) { 1224 for(FX_DWORD w = 0; w < GBW; w++) { 1225 GBREG->setPixel(w, h, GBREG->getPixel(w, h - 1)); 1226 } 1227 } else { 1228 for(FX_DWORD w = 0; w < GBW; w++) { 1229 if(USESKIP && SKIP->getPixel(w, h)) { 1230 GBREG->setPixel(w, h, 0); 1231 } else { 1232 CONTEXT = 0; 1233 switch(GBTEMPLATE) { 1234 case 0: 1235 CONTEXT |= GBREG->getPixel(w - 1, h); 1236 CONTEXT |= GBREG->getPixel(w - 2, h) << 1; 1237 CONTEXT |= GBREG->getPixel(w - 3, h) << 2; 1238 CONTEXT |= GBREG->getPixel(w - 4, h) << 3; 1239 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1240 CONTEXT |= GBREG->getPixel(w + 2, h - 1) << 5; 1241 CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 6; 1242 CONTEXT |= GBREG->getPixel(w, h - 1) << 7; 1243 CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 8; 1244 CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 9; 1245 CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; 1246 CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; 1247 CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 12; 1248 CONTEXT |= GBREG->getPixel(w, h - 2) << 13; 1249 CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 14; 1250 CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; 1251 break; 1252 case 1: 1253 CONTEXT |= GBREG->getPixel(w - 1, h); 1254 CONTEXT |= GBREG->getPixel(w - 2, h) << 1; 1255 CONTEXT |= GBREG->getPixel(w - 3, h) << 2; 1256 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; 1257 CONTEXT |= GBREG->getPixel(w + 2, h - 1) << 4; 1258 CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 5; 1259 CONTEXT |= GBREG->getPixel(w, h - 1) << 6; 1260 CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 7; 1261 CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 8; 1262 CONTEXT |= GBREG->getPixel(w + 2, h - 2) << 9; 1263 CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 10; 1264 CONTEXT |= GBREG->getPixel(w, h - 2) << 11; 1265 CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 12; 1266 break; 1267 case 2: 1268 CONTEXT |= GBREG->getPixel(w - 1, h); 1269 CONTEXT |= GBREG->getPixel(w - 2, h) << 1; 1270 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; 1271 CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 3; 1272 CONTEXT |= GBREG->getPixel(w, h - 1) << 4; 1273 CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 5; 1274 CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 6; 1275 CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 7; 1276 CONTEXT |= GBREG->getPixel(w, h - 2) << 8; 1277 CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 9; 1278 break; 1279 case 3: 1280 CONTEXT |= GBREG->getPixel(w - 1, h); 1281 CONTEXT |= GBREG->getPixel(w - 2, h) << 1; 1282 CONTEXT |= GBREG->getPixel(w - 3, h) << 2; 1283 CONTEXT |= GBREG->getPixel(w - 4, h) << 3; 1284 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1285 CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 5; 1286 CONTEXT |= GBREG->getPixel(w, h - 1) << 6; 1287 CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 7; 1288 CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 8; 1289 CONTEXT |= GBREG->getPixel(w - 3, h - 1) << 9; 1290 break; 1291 } 1292 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1293 GBREG->setPixel(w, h, bVal); 1294 } 1295 } 1296 } 1297 } 1298 return GBREG; 1299 } 1300 CJBig2_Image *CJBig2_GRDProc::decode_MMR(CJBig2_BitStream *pStream) 1301 { 1302 int bitpos, i; 1303 CJBig2_Image *pImage; 1304 JBIG2_ALLOC(pImage, CJBig2_Image(GBW, GBH)); 1305 if (pImage->m_pData == NULL) { 1306 delete pImage; 1307 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 1308 return NULL; 1309 } 1310 bitpos = (int)pStream->getBitPos(); 1311 _FaxG4Decode(m_pModule, pStream->getBuf(), pStream->getLength(), &bitpos, pImage->m_pData, GBW, GBH, pImage->m_nStride); 1312 pStream->setBitPos(bitpos); 1313 for(i = 0; (FX_DWORD)i < pImage->m_nStride * GBH; i++) { 1314 pImage->m_pData[i] = ~pImage->m_pData[i]; 1315 } 1316 return pImage; 1317 } 1318 CJBig2_Image *CJBig2_GRRDProc::decode(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1319 { 1320 if (GRW == 0 || GRH == 0) { 1321 CJBig2_Image* pImage; 1322 JBIG2_ALLOC(pImage, CJBig2_Image(GRW, GRH)); 1323 return pImage; 1324 } 1325 if(GRTEMPLATE == 0) { 1326 if((GRAT[0] == (signed char) - 1) && (GRAT[1] == (signed char) - 1) 1327 && (GRAT[2] == (signed char) - 1) && (GRAT[3] == (signed char) - 1) 1328 && (GRREFERENCEDX == 0) && (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { 1329 return decode_Template0_opt(pArithDecoder, grContext); 1330 } else { 1331 return decode_Template0_unopt(pArithDecoder, grContext); 1332 } 1333 } else { 1334 if((GRREFERENCEDX == 0) && (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { 1335 return decode_Template1_opt(pArithDecoder, grContext); 1336 } else { 1337 return decode_Template1_unopt(pArithDecoder, grContext); 1338 } 1339 } 1340 } 1341 CJBig2_Image *CJBig2_GRRDProc::decode_Template0_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1342 { 1343 FX_BOOL LTP, SLTP, bVal; 1344 FX_DWORD CONTEXT; 1345 CJBig2_Image *GRREG; 1346 FX_DWORD line1, line2, line3, line4, line5; 1347 LTP = 0; 1348 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1349 GRREG->fill(0); 1350 for(FX_DWORD h = 0; h < GRH; h++) { 1351 if(TPGRON) { 1352 SLTP = pArithDecoder->DECODE(&grContext[0x0010]); 1353 LTP = LTP ^ SLTP; 1354 } 1355 if(LTP == 0) { 1356 line1 = GRREG->getPixel(1, h - 1); 1357 line1 |= GRREG->getPixel(0, h - 1) << 1; 1358 line2 = 0; 1359 line3 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY - 1); 1360 line3 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1) << 1; 1361 line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); 1362 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; 1363 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; 1364 line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1365 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1366 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; 1367 for(FX_DWORD w = 0; w < GRW; w++) { 1368 CONTEXT = line5; 1369 CONTEXT |= line4 << 3; 1370 CONTEXT |= line3 << 6; 1371 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; 1372 CONTEXT |= line2 << 9; 1373 CONTEXT |= line1 << 10; 1374 CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; 1375 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1376 GRREG->setPixel(w, h, bVal); 1377 line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x03; 1378 line2 = ((line2 << 1) | bVal) & 0x01; 1379 line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY - 1)) & 0x03; 1380 line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; 1381 line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x07; 1382 } 1383 } else { 1384 line1 = GRREG->getPixel(1, h - 1); 1385 line1 |= GRREG->getPixel(0, h - 1) << 1; 1386 line2 = 0; 1387 line3 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY - 1); 1388 line3 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1) << 1; 1389 line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); 1390 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; 1391 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; 1392 line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1393 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1394 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; 1395 for(FX_DWORD w = 0; w < GRW; w++) { 1396 bVal = GRREFERENCE->getPixel(w, h); 1397 if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) 1398 && (bVal == GRREFERENCE->getPixel(w, h - 1)) 1399 && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) 1400 && (bVal == GRREFERENCE->getPixel(w - 1, h)) 1401 && (bVal == GRREFERENCE->getPixel(w + 1, h)) 1402 && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) 1403 && (bVal == GRREFERENCE->getPixel(w, h + 1)) 1404 && (bVal == GRREFERENCE->getPixel(w + 1, h + 1)))) { 1405 CONTEXT = line5; 1406 CONTEXT |= line4 << 3; 1407 CONTEXT |= line3 << 6; 1408 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; 1409 CONTEXT |= line2 << 9; 1410 CONTEXT |= line1 << 10; 1411 CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; 1412 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1413 } 1414 GRREG->setPixel(w, h, bVal); 1415 line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x03; 1416 line2 = ((line2 << 1) | bVal) & 0x01; 1417 line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY - 1)) & 0x03; 1418 line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; 1419 line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x07; 1420 } 1421 } 1422 } 1423 return GRREG; 1424 } 1425 CJBig2_Image *CJBig2_GRRDProc::decode_Template0_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1426 { 1427 FX_BOOL LTP, SLTP, bVal; 1428 FX_DWORD CONTEXT; 1429 CJBig2_Image *GRREG; 1430 FX_DWORD line1, line1_r, line2_r, line3_r; 1431 FX_BYTE *pLine, *pLineR, cVal; 1432 FX_INTPTR nStride, nStrideR, nOffset; 1433 FX_INT32 k, nBits; 1434 FX_INT32 GRWR, GRHR; 1435 FX_INT32 GRW, GRH; 1436 GRW = (FX_INT32)CJBig2_GRRDProc::GRW; 1437 GRH = (FX_INT32)CJBig2_GRRDProc::GRH; 1438 LTP = 0; 1439 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1440 if (GRREG->m_pData == NULL) { 1441 delete GRREG; 1442 m_pModule->JBig2_Error("Generic refinement region decoding procedure: Create Image Failed with width = %d, height = %d\n", GRW, GRH); 1443 return NULL; 1444 } 1445 pLine = GRREG->m_pData; 1446 pLineR = GRREFERENCE->m_pData; 1447 nStride = GRREG->m_nStride; 1448 nStrideR = GRREFERENCE->m_nStride; 1449 GRWR = (FX_INT32)GRREFERENCE->m_nWidth; 1450 GRHR = (FX_INT32)GRREFERENCE->m_nHeight; 1451 if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { 1452 GRREFERENCEDY = 0; 1453 } 1454 nOffset = -GRREFERENCEDY * nStrideR; 1455 for (FX_INT32 h = 0; h < GRH; h++) { 1456 if(TPGRON) { 1457 SLTP = pArithDecoder->DECODE(&grContext[0x0010]); 1458 LTP = LTP ^ SLTP; 1459 } 1460 line1 = (h > 0) ? pLine[-nStride] << 4 : 0; 1461 FX_INT32 reference_h = h - GRREFERENCEDY; 1462 FX_BOOL line1_r_ok = (reference_h > 0 && reference_h < GRHR + 1); 1463 FX_BOOL line2_r_ok = (reference_h > -1 && reference_h < GRHR); 1464 FX_BOOL line3_r_ok = (reference_h > -2 && reference_h < GRHR - 1); 1465 line1_r = line1_r_ok ? pLineR[nOffset - nStrideR] : 0; 1466 line2_r = line2_r_ok ? pLineR[nOffset] : 0; 1467 line3_r = line3_r_ok ? pLineR[nOffset + nStrideR] : 0; 1468 if(LTP == 0) { 1469 CONTEXT = (line1 & 0x1c00) | (line1_r & 0x01c0) 1470 | ((line2_r >> 3) & 0x0038) | ((line3_r >> 6) & 0x0007); 1471 for (FX_INT32 w = 0; w < GRW; w += 8) { 1472 nBits = GRW - w > 8 ? 8 : GRW - w; 1473 if (h > 0) 1474 line1 = (line1 << 8) | 1475 (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 4 : 0); 1476 if (h > GRHR + GRREFERENCEDY + 1) { 1477 line1_r = 0; 1478 line2_r = 0; 1479 line3_r = 0; 1480 } else { 1481 if(line1_r_ok) 1482 line1_r = (line1_r << 8) | 1483 (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); 1484 if(line2_r_ok) 1485 line2_r = (line2_r << 8) | 1486 (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); 1487 if(line3_r_ok) 1488 line3_r = (line3_r << 8) | 1489 (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); 1490 else { 1491 line3_r = 0; 1492 } 1493 } 1494 cVal = 0; 1495 for (k = 0; k < nBits; k++) { 1496 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1497 cVal |= bVal << (7 - k); 1498 CONTEXT = ((CONTEXT & 0x0cdb) << 1) | (bVal << 9) | 1499 ((line1 >> (7 - k)) & 0x0400) | 1500 ((line1_r >> (7 - k)) & 0x0040) | 1501 ((line2_r >> (10 - k)) & 0x0008) | 1502 ((line3_r >> (13 - k)) & 0x0001); 1503 } 1504 pLine[w >> 3] = cVal; 1505 } 1506 } else { 1507 CONTEXT = (line1 & 0x1c00) | (line1_r & 0x01c0) 1508 | ((line2_r >> 3) & 0x0038) | ((line3_r >> 6) & 0x0007); 1509 for (FX_INT32 w = 0; w < GRW; w += 8) { 1510 nBits = GRW - w > 8 ? 8 : GRW - w; 1511 if (h > 0) 1512 line1 = (line1 << 8) | 1513 (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 4 : 0); 1514 if(line1_r_ok) 1515 line1_r = (line1_r << 8) | 1516 (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); 1517 if(line2_r_ok) 1518 line2_r = (line2_r << 8) | 1519 (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); 1520 if(line3_r_ok) 1521 line3_r = (line3_r << 8) | 1522 (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); 1523 else { 1524 line3_r = 0; 1525 } 1526 cVal = 0; 1527 for (k = 0; k < nBits; k++) { 1528 bVal = GRREFERENCE->getPixel(w + k, h); 1529 if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w + k - 1, h - 1)) 1530 && (bVal == GRREFERENCE->getPixel(w + k, h - 1)) 1531 && (bVal == GRREFERENCE->getPixel(w + k + 1, h - 1)) 1532 && (bVal == GRREFERENCE->getPixel(w + k - 1, h)) 1533 && (bVal == GRREFERENCE->getPixel(w + k + 1, h)) 1534 && (bVal == GRREFERENCE->getPixel(w + k - 1, h + 1)) 1535 && (bVal == GRREFERENCE->getPixel(w + k, h + 1)) 1536 && (bVal == GRREFERENCE->getPixel(w + k + 1, h + 1)))) { 1537 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1538 } 1539 cVal |= bVal << (7 - k); 1540 CONTEXT = ((CONTEXT & 0x0cdb) << 1) | (bVal << 9) | 1541 ((line1 >> (7 - k)) & 0x0400) | 1542 ((line1_r >> (7 - k)) & 0x0040) | 1543 ((line2_r >> (10 - k)) & 0x0008) | 1544 ((line3_r >> (13 - k)) & 0x0001); 1545 } 1546 pLine[w >> 3] = cVal; 1547 } 1548 } 1549 pLine += nStride; 1550 if (h < GRHR + GRREFERENCEDY) { 1551 pLineR += nStrideR; 1552 } 1553 } 1554 return GRREG; 1555 } 1556 CJBig2_Image *CJBig2_GRRDProc::decode_Template1_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1557 { 1558 FX_BOOL LTP, SLTP, bVal; 1559 FX_DWORD CONTEXT; 1560 CJBig2_Image *GRREG; 1561 FX_DWORD line1, line2, line3, line4, line5; 1562 LTP = 0; 1563 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1564 GRREG->fill(0); 1565 for(FX_DWORD h = 0; h < GRH; h++) { 1566 if(TPGRON) { 1567 SLTP = pArithDecoder->DECODE(&grContext[0x0008]); 1568 LTP = LTP ^ SLTP; 1569 } 1570 if(LTP == 0) { 1571 line1 = GRREG->getPixel(1, h - 1); 1572 line1 |= GRREG->getPixel(0, h - 1) << 1; 1573 line1 |= GRREG->getPixel(-1, h - 1) << 2; 1574 line2 = 0; 1575 line3 = GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1); 1576 line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); 1577 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; 1578 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; 1579 line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1580 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1581 for(FX_DWORD w = 0; w < GRW; w++) { 1582 CONTEXT = line5; 1583 CONTEXT |= line4 << 2; 1584 CONTEXT |= line3 << 5; 1585 CONTEXT |= line2 << 6; 1586 CONTEXT |= line1 << 7; 1587 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1588 GRREG->setPixel(w, h, bVal); 1589 line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x07; 1590 line2 = ((line2 << 1) | bVal) & 0x01; 1591 line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1)) & 0x01; 1592 line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; 1593 line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x03; 1594 } 1595 } else { 1596 line1 = GRREG->getPixel(1, h - 1); 1597 line1 |= GRREG->getPixel(0, h - 1) << 1; 1598 line1 |= GRREG->getPixel(-1, h - 1) << 2; 1599 line2 = 0; 1600 line3 = GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1); 1601 line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); 1602 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; 1603 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; 1604 line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1605 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1606 for(FX_DWORD w = 0; w < GRW; w++) { 1607 bVal = GRREFERENCE->getPixel(w, h); 1608 if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) 1609 && (bVal == GRREFERENCE->getPixel(w, h - 1)) 1610 && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) 1611 && (bVal == GRREFERENCE->getPixel(w - 1, h)) 1612 && (bVal == GRREFERENCE->getPixel(w + 1, h)) 1613 && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) 1614 && (bVal == GRREFERENCE->getPixel(w, h + 1)) 1615 && (bVal == GRREFERENCE->getPixel(w + 1, h + 1)))) { 1616 CONTEXT = line5; 1617 CONTEXT |= line4 << 2; 1618 CONTEXT |= line3 << 5; 1619 CONTEXT |= line2 << 6; 1620 CONTEXT |= line1 << 7; 1621 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1622 } 1623 GRREG->setPixel(w, h, bVal); 1624 line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x07; 1625 line2 = ((line2 << 1) | bVal) & 0x01; 1626 line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1)) & 0x01; 1627 line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; 1628 line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x03; 1629 } 1630 } 1631 } 1632 return GRREG; 1633 } 1634 CJBig2_Image *CJBig2_GRRDProc::decode_Template1_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1635 { 1636 FX_BOOL LTP, SLTP, bVal; 1637 FX_DWORD CONTEXT; 1638 CJBig2_Image *GRREG; 1639 FX_DWORD line1, line1_r, line2_r, line3_r; 1640 FX_BYTE *pLine, *pLineR, cVal; 1641 FX_INTPTR nStride, nStrideR, nOffset; 1642 FX_INT32 k, nBits; 1643 FX_INT32 GRWR, GRHR; 1644 FX_INT32 GRW, GRH; 1645 GRW = (FX_INT32)CJBig2_GRRDProc::GRW; 1646 GRH = (FX_INT32)CJBig2_GRRDProc::GRH; 1647 LTP = 0; 1648 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1649 if (GRREG->m_pData == NULL) { 1650 delete GRREG; 1651 m_pModule->JBig2_Error("Generic refinement region decoding procedure: Create Image Failed with width = %d, height = %d\n", GRW, GRH); 1652 return NULL; 1653 } 1654 pLine = GRREG->m_pData; 1655 pLineR = GRREFERENCE->m_pData; 1656 nStride = GRREG->m_nStride; 1657 nStrideR = GRREFERENCE->m_nStride; 1658 GRWR = (FX_INT32)GRREFERENCE->m_nWidth; 1659 GRHR = (FX_INT32)GRREFERENCE->m_nHeight; 1660 if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { 1661 GRREFERENCEDY = 0; 1662 } 1663 nOffset = -GRREFERENCEDY * nStrideR; 1664 for (FX_INT32 h = 0; h < GRH; h++) { 1665 if(TPGRON) { 1666 SLTP = pArithDecoder->DECODE(&grContext[0x0008]); 1667 LTP = LTP ^ SLTP; 1668 } 1669 line1 = (h > 0) ? pLine[-nStride] << 1 : 0; 1670 FX_INT32 reference_h = h - GRREFERENCEDY; 1671 FX_BOOL line1_r_ok = (reference_h > 0 && reference_h < GRHR + 1); 1672 FX_BOOL line2_r_ok = (reference_h > -1 && reference_h < GRHR); 1673 FX_BOOL line3_r_ok = (reference_h > -2 && reference_h < GRHR - 1); 1674 line1_r = line1_r_ok ? pLineR[nOffset - nStrideR] : 0; 1675 line2_r = line2_r_ok ? pLineR[nOffset] : 0; 1676 line3_r = line3_r_ok ? pLineR[nOffset + nStrideR] : 0; 1677 if(LTP == 0) { 1678 CONTEXT = (line1 & 0x0380) | ((line1_r >> 2) & 0x0020) 1679 | ((line2_r >> 4) & 0x001c) | ((line3_r >> 6) & 0x0003); 1680 for (FX_INT32 w = 0; w < GRW; w += 8) { 1681 nBits = GRW - w > 8 ? 8 : GRW - w; 1682 if (h > 0) 1683 line1 = (line1 << 8) | 1684 (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 1 : 0); 1685 if(line1_r_ok) 1686 line1_r = (line1_r << 8) | 1687 (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); 1688 if(line2_r_ok) 1689 line2_r = (line2_r << 8) | 1690 (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); 1691 if(line3_r_ok) 1692 line3_r = (line3_r << 8) | 1693 (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); 1694 else { 1695 line3_r = 0; 1696 } 1697 cVal = 0; 1698 for (k = 0; k < nBits; k++) { 1699 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1700 cVal |= bVal << (7 - k); 1701 CONTEXT = ((CONTEXT & 0x018d) << 1) | (bVal << 6) | 1702 ((line1 >> (7 - k)) & 0x0080) | 1703 ((line1_r >> (9 - k)) & 0x0020) | 1704 ((line2_r >> (11 - k)) & 0x0004) | 1705 ((line3_r >> (13 - k)) & 0x0001); 1706 } 1707 pLine[w >> 3] = cVal; 1708 } 1709 } else { 1710 CONTEXT = (line1 & 0x0380) | ((line1_r >> 2) & 0x0020) 1711 | ((line2_r >> 4) & 0x001c) | ((line3_r >> 6) & 0x0003); 1712 for (FX_INT32 w = 0; w < GRW; w += 8) { 1713 nBits = GRW - w > 8 ? 8 : GRW - w; 1714 if (h > 0) 1715 line1 = (line1 << 8) | 1716 (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 1 : 0); 1717 if(line1_r_ok) 1718 line1_r = (line1_r << 8) | 1719 (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); 1720 if(line2_r_ok) 1721 line2_r = (line2_r << 8) | 1722 (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); 1723 if(line3_r_ok) 1724 line3_r = (line3_r << 8) | 1725 (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); 1726 else { 1727 line3_r = 0; 1728 } 1729 cVal = 0; 1730 for (k = 0; k < nBits; k++) { 1731 bVal = GRREFERENCE->getPixel(w + k, h); 1732 if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w + k - 1, h - 1)) 1733 && (bVal == GRREFERENCE->getPixel(w + k, h - 1)) 1734 && (bVal == GRREFERENCE->getPixel(w + k + 1, h - 1)) 1735 && (bVal == GRREFERENCE->getPixel(w + k - 1, h)) 1736 && (bVal == GRREFERENCE->getPixel(w + k + 1, h)) 1737 && (bVal == GRREFERENCE->getPixel(w + k - 1, h + 1)) 1738 && (bVal == GRREFERENCE->getPixel(w + k, h + 1)) 1739 && (bVal == GRREFERENCE->getPixel(w + k + 1, h + 1)))) { 1740 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1741 } 1742 cVal |= bVal << (7 - k); 1743 CONTEXT = ((CONTEXT & 0x018d) << 1) | (bVal << 6) | 1744 ((line1 >> (7 - k)) & 0x0080) | 1745 ((line1_r >> (9 - k)) & 0x0020) | 1746 ((line2_r >> (11 - k)) & 0x0004) | 1747 ((line3_r >> (13 - k)) & 0x0001); 1748 } 1749 pLine[w >> 3] = cVal; 1750 } 1751 } 1752 pLine += nStride; 1753 if (h < GRHR + GRREFERENCEDY) { 1754 pLineR += nStrideR; 1755 } 1756 } 1757 return GRREG; 1758 } 1759 CJBig2_Image *CJBig2_GRRDProc::decode_V1(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1760 { 1761 FX_BOOL LTP, SLTP, bVal; 1762 FX_BOOL TPGRPIX, TPGRVAL; 1763 FX_DWORD CONTEXT; 1764 CJBig2_Image *GRREG; 1765 LTP = 0; 1766 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1767 GRREG->fill(0); 1768 for(FX_DWORD h = 0; h < GRH; h++) { 1769 if(TPGRON) { 1770 switch(GRTEMPLATE) { 1771 case 0: 1772 CONTEXT = 0x0010; 1773 break; 1774 case 1: 1775 CONTEXT = 0x0008; 1776 break; 1777 } 1778 SLTP = pArithDecoder->DECODE(&grContext[CONTEXT]); 1779 LTP = LTP ^ SLTP; 1780 } 1781 if(LTP == 0) { 1782 for(FX_DWORD w = 0; w < GRW; w++) { 1783 CONTEXT = 0; 1784 switch(GRTEMPLATE) { 1785 case 0: 1786 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1787 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1788 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; 1789 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 3; 1790 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 4; 1791 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 5; 1792 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1) << 6; 1793 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 7; 1794 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; 1795 CONTEXT |= GRREG->getPixel(w - 1, h) << 9; 1796 CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 10; 1797 CONTEXT |= GRREG->getPixel(w, h - 1) << 11; 1798 CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; 1799 break; 1800 case 1: 1801 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1802 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1803 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 2; 1804 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 3; 1805 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 4; 1806 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 5; 1807 CONTEXT |= GRREG->getPixel(w - 1, h) << 6; 1808 CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 7; 1809 CONTEXT |= GRREG->getPixel(w, h - 1) << 8; 1810 CONTEXT |= GRREG->getPixel(w - 1, h - 1) << 9; 1811 break; 1812 } 1813 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1814 GRREG->setPixel(w, h, bVal); 1815 } 1816 } else { 1817 for(FX_DWORD w = 0; w < GRW; w++) { 1818 bVal = GRREFERENCE->getPixel(w, h); 1819 if(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) 1820 && (bVal == GRREFERENCE->getPixel(w, h - 1)) 1821 && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) 1822 && (bVal == GRREFERENCE->getPixel(w - 1, h)) 1823 && (bVal == GRREFERENCE->getPixel(w + 1, h)) 1824 && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) 1825 && (bVal == GRREFERENCE->getPixel(w, h + 1)) 1826 && (bVal == GRREFERENCE->getPixel(w + 1, h + 1))) { 1827 TPGRPIX = 1; 1828 TPGRVAL = bVal; 1829 } else { 1830 TPGRPIX = 0; 1831 } 1832 if(TPGRPIX) { 1833 GRREG->setPixel(w, h, TPGRVAL); 1834 } else { 1835 CONTEXT = 0; 1836 switch(GRTEMPLATE) { 1837 case 0: 1838 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1839 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1840 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; 1841 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 3; 1842 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 4; 1843 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 5; 1844 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1) << 6; 1845 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 7; 1846 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; 1847 CONTEXT |= GRREG->getPixel(w - 1, h) << 9; 1848 CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 10; 1849 CONTEXT |= GRREG->getPixel(w, h - 1) << 11; 1850 CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; 1851 break; 1852 case 1: 1853 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1854 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1855 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 2; 1856 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 3; 1857 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 4; 1858 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 5; 1859 CONTEXT |= GRREG->getPixel(w - 1, h) << 6; 1860 CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 7; 1861 CONTEXT |= GRREG->getPixel(w, h - 1) << 8; 1862 CONTEXT |= GRREG->getPixel(w - 1, h - 1) << 9; 1863 break; 1864 } 1865 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1866 GRREG->setPixel(w, h, bVal); 1867 } 1868 } 1869 } 1870 } 1871 return GRREG; 1872 } 1873 CJBig2_Image *CJBig2_TRDProc::decode_Huffman(CJBig2_BitStream *pStream, JBig2ArithCtx *grContext) 1874 { 1875 FX_INT32 STRIPT, FIRSTS; 1876 FX_DWORD NINSTANCES; 1877 FX_INT32 DT, DFS, CURS; 1878 FX_BYTE CURT; 1879 FX_INT32 SI, TI; 1880 FX_DWORD IDI; 1881 CJBig2_Image *IBI; 1882 FX_DWORD WI, HI; 1883 FX_INT32 IDS; 1884 FX_BOOL RI; 1885 FX_INT32 RDWI, RDHI, RDXI, RDYI; 1886 CJBig2_Image *IBOI; 1887 FX_DWORD WOI, HOI; 1888 CJBig2_Image *SBREG; 1889 FX_BOOL bFirst; 1890 FX_DWORD nTmp; 1891 FX_INT32 nVal, nBits; 1892 CJBig2_HuffmanDecoder *pHuffmanDecoder; 1893 CJBig2_GRRDProc *pGRRD; 1894 CJBig2_ArithDecoder *pArithDecoder; 1895 JBIG2_ALLOC(pHuffmanDecoder, CJBig2_HuffmanDecoder(pStream)); 1896 JBIG2_ALLOC(SBREG, CJBig2_Image(SBW, SBH)); 1897 SBREG->fill(SBDEFPIXEL); 1898 if(pHuffmanDecoder->decodeAValue(SBHUFFDT, &STRIPT) != 0) { 1899 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1900 goto failed; 1901 } 1902 STRIPT *= SBSTRIPS; 1903 STRIPT = -STRIPT; 1904 FIRSTS = 0; 1905 NINSTANCES = 0; 1906 while(NINSTANCES < SBNUMINSTANCES) { 1907 if(pHuffmanDecoder->decodeAValue(SBHUFFDT, &DT) != 0) { 1908 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1909 goto failed; 1910 } 1911 DT *= SBSTRIPS; 1912 STRIPT = STRIPT + DT; 1913 bFirst = TRUE; 1914 for(;;) { 1915 if(bFirst) { 1916 if(pHuffmanDecoder->decodeAValue(SBHUFFFS, &DFS) != 0) { 1917 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1918 goto failed; 1919 } 1920 FIRSTS = FIRSTS + DFS; 1921 CURS = FIRSTS; 1922 bFirst = FALSE; 1923 } else { 1924 nVal = pHuffmanDecoder->decodeAValue(SBHUFFDS, &IDS); 1925 if(nVal == JBIG2_OOB) { 1926 break; 1927 } else if(nVal != 0) { 1928 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1929 goto failed; 1930 } else { 1931 CURS = CURS + IDS + SBDSOFFSET; 1932 } 1933 } 1934 if(SBSTRIPS == 1) { 1935 CURT = 0; 1936 } else { 1937 nTmp = 1; 1938 while((FX_DWORD)(1 << nTmp) < SBSTRIPS) { 1939 nTmp ++; 1940 } 1941 if(pStream->readNBits(nTmp, &nVal) != 0) { 1942 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1943 goto failed; 1944 } 1945 CURT = nVal; 1946 } 1947 TI = STRIPT + CURT; 1948 nVal = 0; 1949 nBits = 0; 1950 for(;;) { 1951 if(pStream->read1Bit(&nTmp) != 0) { 1952 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1953 goto failed; 1954 } 1955 nVal = (nVal << 1) | nTmp; 1956 nBits ++; 1957 for(IDI = 0; IDI < SBNUMSYMS; IDI++) { 1958 if((nBits == SBSYMCODES[IDI].codelen) && (nVal == SBSYMCODES[IDI].code)) { 1959 break; 1960 } 1961 } 1962 if(IDI < SBNUMSYMS) { 1963 break; 1964 } 1965 } 1966 if(SBREFINE == 0) { 1967 RI = 0; 1968 } else { 1969 if(pStream->read1Bit(&RI) != 0) { 1970 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1971 goto failed; 1972 } 1973 } 1974 if(RI == 0) { 1975 IBI = SBSYMS[IDI]; 1976 } else { 1977 if((pHuffmanDecoder->decodeAValue(SBHUFFRDW, &RDWI) != 0) 1978 || (pHuffmanDecoder->decodeAValue(SBHUFFRDH, &RDHI) != 0) 1979 || (pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDXI) != 0) 1980 || (pHuffmanDecoder->decodeAValue(SBHUFFRDY, &RDYI) != 0) 1981 || (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE, &nVal) != 0)) { 1982 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1983 goto failed; 1984 } 1985 pStream->alignByte(); 1986 nTmp = pStream->getOffset(); 1987 IBOI = SBSYMS[IDI]; 1988 if (!IBOI) { 1989 goto failed; 1990 } 1991 WOI = IBOI->m_nWidth; 1992 HOI = IBOI->m_nHeight; 1993 if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) { 1994 m_pModule->JBig2_Error("text region decoding procedure (huffman): Invalid RDWI or RDHI value."); 1995 goto failed; 1996 } 1997 JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); 1998 pGRRD->GRW = WOI + RDWI; 1999 pGRRD->GRH = HOI + RDHI; 2000 pGRRD->GRTEMPLATE = SBRTEMPLATE; 2001 pGRRD->GRREFERENCE = IBOI; 2002 pGRRD->GRREFERENCEDX = (RDWI >> 2) + RDXI; 2003 pGRRD->GRREFERENCEDY = (RDHI >> 2) + RDYI; 2004 pGRRD->TPGRON = 0; 2005 pGRRD->GRAT[0] = SBRAT[0]; 2006 pGRRD->GRAT[1] = SBRAT[1]; 2007 pGRRD->GRAT[2] = SBRAT[2]; 2008 pGRRD->GRAT[3] = SBRAT[3]; 2009 JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(pStream)); 2010 IBI = pGRRD->decode(pArithDecoder, grContext); 2011 if(IBI == NULL) { 2012 delete pGRRD; 2013 delete pArithDecoder; 2014 goto failed; 2015 } 2016 delete pArithDecoder; 2017 pStream->alignByte(); 2018 pStream->offset(2); 2019 if((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { 2020 delete IBI; 2021 delete pGRRD; 2022 m_pModule->JBig2_Error("text region decoding procedure (huffman):" 2023 "bytes processed by generic refinement region decoding procedure doesn't equal SBHUFFRSIZE."); 2024 goto failed; 2025 } 2026 delete pGRRD; 2027 } 2028 if (!IBI) { 2029 continue; 2030 } 2031 WI = IBI->m_nWidth; 2032 HI = IBI->m_nHeight; 2033 if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPRIGHT) 2034 || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { 2035 CURS = CURS + WI - 1; 2036 } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_BOTTOMLEFT) 2037 || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { 2038 CURS = CURS + HI - 1; 2039 } 2040 SI = CURS; 2041 if(TRANSPOSED == 0) { 2042 switch(REFCORNER) { 2043 case JBIG2_CORNER_TOPLEFT: 2044 SBREG->composeFrom(SI, TI, IBI, SBCOMBOP); 2045 break; 2046 case JBIG2_CORNER_TOPRIGHT: 2047 SBREG->composeFrom(SI - WI + 1, TI, IBI, SBCOMBOP); 2048 break; 2049 case JBIG2_CORNER_BOTTOMLEFT: 2050 SBREG->composeFrom(SI, TI - HI + 1, IBI, SBCOMBOP); 2051 break; 2052 case JBIG2_CORNER_BOTTOMRIGHT: 2053 SBREG->composeFrom(SI - WI + 1, TI - HI + 1, IBI, SBCOMBOP); 2054 break; 2055 } 2056 } else { 2057 switch(REFCORNER) { 2058 case JBIG2_CORNER_TOPLEFT: 2059 SBREG->composeFrom(TI, SI, IBI, SBCOMBOP); 2060 break; 2061 case JBIG2_CORNER_TOPRIGHT: 2062 SBREG->composeFrom(TI - WI + 1, SI, IBI, SBCOMBOP); 2063 break; 2064 case JBIG2_CORNER_BOTTOMLEFT: 2065 SBREG->composeFrom(TI, SI - HI + 1, IBI, SBCOMBOP); 2066 break; 2067 case JBIG2_CORNER_BOTTOMRIGHT: 2068 SBREG->composeFrom(TI - WI + 1, SI - HI + 1, IBI, SBCOMBOP); 2069 break; 2070 } 2071 } 2072 if(RI != 0) { 2073 delete IBI; 2074 } 2075 if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) 2076 || (REFCORNER == JBIG2_CORNER_BOTTOMLEFT))) { 2077 CURS = CURS + WI - 1; 2078 } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) 2079 || (REFCORNER == JBIG2_CORNER_TOPRIGHT))) { 2080 CURS = CURS + HI - 1; 2081 } 2082 NINSTANCES = NINSTANCES + 1; 2083 } 2084 } 2085 delete pHuffmanDecoder; 2086 return SBREG; 2087 failed: 2088 delete pHuffmanDecoder; 2089 delete SBREG; 2090 return NULL; 2091 } 2092 CJBig2_Image *CJBig2_TRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext, 2093 JBig2IntDecoderState *pIDS) 2094 { 2095 FX_INT32 STRIPT, FIRSTS; 2096 FX_DWORD NINSTANCES; 2097 FX_INT32 DT, DFS, CURS; 2098 FX_INT32 CURT; 2099 FX_INT32 SI, TI; 2100 FX_DWORD IDI; 2101 CJBig2_Image *IBI; 2102 FX_DWORD WI, HI; 2103 FX_INT32 IDS; 2104 FX_BOOL RI; 2105 FX_INT32 RDWI, RDHI, RDXI, RDYI; 2106 CJBig2_Image *IBOI; 2107 FX_DWORD WOI, HOI; 2108 CJBig2_Image *SBREG; 2109 FX_BOOL bFirst; 2110 FX_INT32 nRet, nVal; 2111 FX_INT32 bRetained; 2112 CJBig2_ArithIntDecoder *IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH, *IARDX, *IARDY; 2113 CJBig2_ArithIaidDecoder *IAID; 2114 CJBig2_GRRDProc *pGRRD; 2115 if(pIDS) { 2116 IADT = pIDS->IADT; 2117 IAFS = pIDS->IAFS; 2118 IADS = pIDS->IADS; 2119 IAIT = pIDS->IAIT; 2120 IARI = pIDS->IARI; 2121 IARDW = pIDS->IARDW; 2122 IARDH = pIDS->IARDH; 2123 IARDX = pIDS->IARDX; 2124 IARDY = pIDS->IARDY; 2125 IAID = pIDS->IAID; 2126 bRetained = TRUE; 2127 } else { 2128 JBIG2_ALLOC(IADT, CJBig2_ArithIntDecoder()); 2129 JBIG2_ALLOC(IAFS, CJBig2_ArithIntDecoder()); 2130 JBIG2_ALLOC(IADS, CJBig2_ArithIntDecoder()); 2131 JBIG2_ALLOC(IAIT, CJBig2_ArithIntDecoder()); 2132 JBIG2_ALLOC(IARI, CJBig2_ArithIntDecoder()); 2133 JBIG2_ALLOC(IARDW, CJBig2_ArithIntDecoder()); 2134 JBIG2_ALLOC(IARDH, CJBig2_ArithIntDecoder()); 2135 JBIG2_ALLOC(IARDX, CJBig2_ArithIntDecoder()); 2136 JBIG2_ALLOC(IARDY, CJBig2_ArithIntDecoder()); 2137 JBIG2_ALLOC(IAID , CJBig2_ArithIaidDecoder(SBSYMCODELEN)); 2138 bRetained = FALSE; 2139 } 2140 JBIG2_ALLOC(SBREG, CJBig2_Image(SBW, SBH)); 2141 SBREG->fill(SBDEFPIXEL); 2142 if(IADT->decode(pArithDecoder, &STRIPT) == -1) { 2143 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2144 goto failed; 2145 } 2146 STRIPT *= SBSTRIPS; 2147 STRIPT = -STRIPT; 2148 FIRSTS = 0; 2149 NINSTANCES = 0; 2150 while(NINSTANCES < SBNUMINSTANCES) { 2151 if(IADT->decode(pArithDecoder, &DT) == -1) { 2152 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2153 goto failed; 2154 } 2155 DT *= SBSTRIPS; 2156 STRIPT = STRIPT + DT; 2157 bFirst = TRUE; 2158 for(;;) { 2159 if(bFirst) { 2160 if(IAFS->decode(pArithDecoder, &DFS) == -1) { 2161 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2162 goto failed; 2163 } 2164 FIRSTS = FIRSTS + DFS; 2165 CURS = FIRSTS; 2166 bFirst = FALSE; 2167 } else { 2168 nRet = IADS->decode(pArithDecoder, &IDS); 2169 if(nRet == JBIG2_OOB) { 2170 break; 2171 } else if(nRet != 0) { 2172 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2173 goto failed; 2174 } else { 2175 CURS = CURS + IDS + SBDSOFFSET; 2176 } 2177 } 2178 if (NINSTANCES >= SBNUMINSTANCES) { 2179 break; 2180 } 2181 if(SBSTRIPS == 1) { 2182 CURT = 0; 2183 } else { 2184 if(IAIT->decode(pArithDecoder, &nVal) == -1) { 2185 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2186 goto failed; 2187 } 2188 CURT = nVal; 2189 } 2190 TI = STRIPT + CURT; 2191 if(IAID->decode(pArithDecoder, &nVal) == -1) { 2192 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2193 goto failed; 2194 } 2195 IDI = nVal; 2196 if(IDI >= SBNUMSYMS) { 2197 m_pModule->JBig2_Error("text region decoding procedure (arith): symbol id out of range.(%d/%d)", 2198 IDI, SBNUMSYMS); 2199 goto failed; 2200 } 2201 if(SBREFINE == 0) { 2202 RI = 0; 2203 } else { 2204 if(IARI->decode(pArithDecoder, &RI) == -1) { 2205 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2206 goto failed; 2207 } 2208 } 2209 if (!SBSYMS[IDI]) { 2210 goto failed; 2211 } 2212 if(RI == 0) { 2213 IBI = SBSYMS[IDI]; 2214 } else { 2215 if((IARDW->decode(pArithDecoder, &RDWI) == -1) 2216 || (IARDH->decode(pArithDecoder, &RDHI) == -1) 2217 || (IARDX->decode(pArithDecoder, &RDXI) == -1) 2218 || (IARDY->decode(pArithDecoder, &RDYI) == -1)) { 2219 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2220 goto failed; 2221 } 2222 IBOI = SBSYMS[IDI]; 2223 WOI = IBOI->m_nWidth; 2224 HOI = IBOI->m_nHeight; 2225 if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) { 2226 m_pModule->JBig2_Error("text region decoding procedure (arith): Invalid RDWI or RDHI value."); 2227 goto failed; 2228 } 2229 JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); 2230 pGRRD->GRW = WOI + RDWI; 2231 pGRRD->GRH = HOI + RDHI; 2232 pGRRD->GRTEMPLATE = SBRTEMPLATE; 2233 pGRRD->GRREFERENCE = IBOI; 2234 pGRRD->GRREFERENCEDX = (RDWI >> 1) + RDXI; 2235 pGRRD->GRREFERENCEDY = (RDHI >> 1) + RDYI; 2236 pGRRD->TPGRON = 0; 2237 pGRRD->GRAT[0] = SBRAT[0]; 2238 pGRRD->GRAT[1] = SBRAT[1]; 2239 pGRRD->GRAT[2] = SBRAT[2]; 2240 pGRRD->GRAT[3] = SBRAT[3]; 2241 IBI = pGRRD->decode(pArithDecoder, grContext); 2242 if(IBI == NULL) { 2243 delete pGRRD; 2244 goto failed; 2245 } 2246 delete pGRRD; 2247 } 2248 WI = IBI->m_nWidth; 2249 HI = IBI->m_nHeight; 2250 if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPRIGHT) 2251 || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { 2252 CURS = CURS + WI - 1; 2253 } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_BOTTOMLEFT) 2254 || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { 2255 CURS = CURS + HI - 1; 2256 } 2257 SI = CURS; 2258 if(TRANSPOSED == 0) { 2259 switch(REFCORNER) { 2260 case JBIG2_CORNER_TOPLEFT: 2261 SBREG->composeFrom(SI, TI, IBI, SBCOMBOP); 2262 break; 2263 case JBIG2_CORNER_TOPRIGHT: 2264 SBREG->composeFrom(SI - WI + 1, TI, IBI, SBCOMBOP); 2265 break; 2266 case JBIG2_CORNER_BOTTOMLEFT: 2267 SBREG->composeFrom(SI, TI - HI + 1, IBI, SBCOMBOP); 2268 break; 2269 case JBIG2_CORNER_BOTTOMRIGHT: 2270 SBREG->composeFrom(SI - WI + 1, TI - HI + 1, IBI, SBCOMBOP); 2271 break; 2272 } 2273 } else { 2274 switch(REFCORNER) { 2275 case JBIG2_CORNER_TOPLEFT: 2276 SBREG->composeFrom(TI, SI, IBI, SBCOMBOP); 2277 break; 2278 case JBIG2_CORNER_TOPRIGHT: 2279 SBREG->composeFrom(TI - WI + 1, SI, IBI, SBCOMBOP); 2280 break; 2281 case JBIG2_CORNER_BOTTOMLEFT: 2282 SBREG->composeFrom(TI, SI - HI + 1, IBI, SBCOMBOP); 2283 break; 2284 case JBIG2_CORNER_BOTTOMRIGHT: 2285 SBREG->composeFrom(TI - WI + 1, SI - HI + 1, IBI, SBCOMBOP); 2286 break; 2287 } 2288 } 2289 if(RI != 0) { 2290 delete IBI; 2291 } 2292 if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) 2293 || (REFCORNER == JBIG2_CORNER_BOTTOMLEFT))) { 2294 CURS = CURS + WI - 1; 2295 } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) 2296 || (REFCORNER == JBIG2_CORNER_TOPRIGHT))) { 2297 CURS = CURS + HI - 1; 2298 } 2299 NINSTANCES = NINSTANCES + 1; 2300 } 2301 } 2302 if(bRetained == FALSE) { 2303 delete IADT; 2304 delete IAFS; 2305 delete IADS; 2306 delete IAIT; 2307 delete IARI; 2308 delete IARDW; 2309 delete IARDH; 2310 delete IARDX; 2311 delete IARDY; 2312 delete IAID; 2313 } 2314 return SBREG; 2315 failed: 2316 if(bRetained == FALSE) { 2317 delete IADT; 2318 delete IAFS; 2319 delete IADS; 2320 delete IAIT; 2321 delete IARI; 2322 delete IARDW; 2323 delete IARDH; 2324 delete IARDX; 2325 delete IARDY; 2326 delete IAID; 2327 } 2328 delete SBREG; 2329 return NULL; 2330 } 2331 CJBig2_SymbolDict *CJBig2_SDDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, 2332 JBig2ArithCtx *gbContext, JBig2ArithCtx *grContext) 2333 { 2334 CJBig2_Image **SDNEWSYMS; 2335 FX_DWORD HCHEIGHT, NSYMSDECODED; 2336 FX_INT32 HCDH; 2337 FX_DWORD SYMWIDTH, TOTWIDTH; 2338 FX_INT32 DW; 2339 CJBig2_Image *BS; 2340 FX_DWORD I, J, REFAGGNINST; 2341 FX_BOOL *EXFLAGS; 2342 FX_DWORD EXINDEX; 2343 FX_BOOL CUREXFLAG; 2344 FX_DWORD EXRUNLENGTH; 2345 FX_INT32 nVal; 2346 FX_DWORD nTmp; 2347 FX_DWORD SBNUMSYMS; 2348 FX_BYTE SBSYMCODELEN; 2349 FX_DWORD IDI; 2350 FX_INT32 RDXI, RDYI; 2351 CJBig2_Image **SBSYMS; 2352 CJBig2_HuffmanTable *SBHUFFFS, *SBHUFFDS, *SBHUFFDT, *SBHUFFRDW, *SBHUFFRDH, *SBHUFFRDX, *SBHUFFRDY, 2353 *SBHUFFRSIZE; 2354 CJBig2_GRRDProc *pGRRD; 2355 CJBig2_GRDProc *pGRD; 2356 CJBig2_ArithIntDecoder *IADH, *IADW, *IAAI, *IARDX, *IARDY, *IAEX, 2357 *IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH; 2358 CJBig2_ArithIaidDecoder *IAID; 2359 CJBig2_SymbolDict *pDict; 2360 JBIG2_ALLOC(IADH, CJBig2_ArithIntDecoder()); 2361 JBIG2_ALLOC(IADW, CJBig2_ArithIntDecoder()); 2362 JBIG2_ALLOC(IAAI, CJBig2_ArithIntDecoder()); 2363 JBIG2_ALLOC(IARDX, CJBig2_ArithIntDecoder()); 2364 JBIG2_ALLOC(IARDY, CJBig2_ArithIntDecoder()); 2365 JBIG2_ALLOC(IAEX, CJBig2_ArithIntDecoder()); 2366 JBIG2_ALLOC(IADT, CJBig2_ArithIntDecoder()); 2367 JBIG2_ALLOC(IAFS, CJBig2_ArithIntDecoder()); 2368 JBIG2_ALLOC(IADS, CJBig2_ArithIntDecoder()); 2369 JBIG2_ALLOC(IAIT, CJBig2_ArithIntDecoder()); 2370 JBIG2_ALLOC(IARI, CJBig2_ArithIntDecoder()); 2371 JBIG2_ALLOC(IARDW, CJBig2_ArithIntDecoder()); 2372 JBIG2_ALLOC(IARDH, CJBig2_ArithIntDecoder()); 2373 nTmp = 0; 2374 while((FX_DWORD)(1 << nTmp) < (SDNUMINSYMS + SDNUMNEWSYMS)) { 2375 nTmp ++; 2376 } 2377 JBIG2_ALLOC(IAID, CJBig2_ArithIaidDecoder((FX_BYTE)nTmp)); 2378 SDNEWSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(CJBig2_Image*)); 2379 FXSYS_memset32(SDNEWSYMS, 0 , SDNUMNEWSYMS * sizeof(CJBig2_Image*)); 2380 HCHEIGHT = 0; 2381 NSYMSDECODED = 0; 2382 while(NSYMSDECODED < SDNUMNEWSYMS) { 2383 BS = NULL; 2384 if(IADH->decode(pArithDecoder, &HCDH) == -1) { 2385 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2386 goto failed; 2387 } 2388 HCHEIGHT = HCHEIGHT + HCDH; 2389 if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { 2390 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): invalid HCHEIGHT value."); 2391 goto failed; 2392 } 2393 SYMWIDTH = 0; 2394 TOTWIDTH = 0; 2395 for(;;) { 2396 nVal = IADW->decode(pArithDecoder, &DW); 2397 if(nVal == JBIG2_OOB) { 2398 break; 2399 } else if(nVal != 0) { 2400 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2401 goto failed; 2402 } else { 2403 if (NSYMSDECODED >= SDNUMNEWSYMS) { 2404 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): NSYMSDECODED >= SDNUMNEWSYMS."); 2405 goto failed; 2406 } 2407 SYMWIDTH = SYMWIDTH + DW; 2408 if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { 2409 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): invalid SYMWIDTH value."); 2410 goto failed; 2411 } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { 2412 TOTWIDTH = TOTWIDTH + SYMWIDTH; 2413 SDNEWSYMS[NSYMSDECODED] = NULL; 2414 NSYMSDECODED = NSYMSDECODED + 1; 2415 continue; 2416 } 2417 TOTWIDTH = TOTWIDTH + SYMWIDTH; 2418 } 2419 if(SDREFAGG == 0) { 2420 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 2421 pGRD->MMR = 0; 2422 pGRD->GBW = SYMWIDTH; 2423 pGRD->GBH = HCHEIGHT; 2424 pGRD->GBTEMPLATE = SDTEMPLATE; 2425 pGRD->TPGDON = 0; 2426 pGRD->USESKIP = 0; 2427 pGRD->GBAT[0] = SDAT[0]; 2428 pGRD->GBAT[1] = SDAT[1]; 2429 pGRD->GBAT[2] = SDAT[2]; 2430 pGRD->GBAT[3] = SDAT[3]; 2431 pGRD->GBAT[4] = SDAT[4]; 2432 pGRD->GBAT[5] = SDAT[5]; 2433 pGRD->GBAT[6] = SDAT[6]; 2434 pGRD->GBAT[7] = SDAT[7]; 2435 BS = pGRD->decode_Arith(pArithDecoder, gbContext); 2436 if(BS == NULL) { 2437 delete pGRD; 2438 goto failed; 2439 } 2440 delete pGRD; 2441 } else { 2442 if(IAAI->decode(pArithDecoder, (int*)&REFAGGNINST) == -1) { 2443 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2444 goto failed; 2445 } 2446 if(REFAGGNINST > 1) { 2447 CJBig2_TRDProc *pDecoder; 2448 JBIG2_ALLOC(pDecoder, CJBig2_TRDProc()); 2449 pDecoder->SBHUFF = SDHUFF; 2450 pDecoder->SBREFINE = 1; 2451 pDecoder->SBW = SYMWIDTH; 2452 pDecoder->SBH = HCHEIGHT; 2453 pDecoder->SBNUMINSTANCES = REFAGGNINST; 2454 pDecoder->SBSTRIPS = 1; 2455 pDecoder->SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; 2456 SBNUMSYMS = pDecoder->SBNUMSYMS; 2457 nTmp = 0; 2458 while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { 2459 nTmp ++; 2460 } 2461 SBSYMCODELEN = (FX_BYTE)nTmp; 2462 pDecoder->SBSYMCODELEN = SBSYMCODELEN; 2463 SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); 2464 JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); 2465 JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); 2466 pDecoder->SBSYMS = SBSYMS; 2467 pDecoder->SBDEFPIXEL = 0; 2468 pDecoder->SBCOMBOP = JBIG2_COMPOSE_OR; 2469 pDecoder->TRANSPOSED = 0; 2470 pDecoder->REFCORNER = JBIG2_CORNER_TOPLEFT; 2471 pDecoder->SBDSOFFSET = 0; 2472 JBIG2_ALLOC(SBHUFFFS, CJBig2_HuffmanTable(HuffmanTable_B6, 2473 sizeof(HuffmanTable_B6) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B6)); 2474 JBIG2_ALLOC(SBHUFFDS, CJBig2_HuffmanTable(HuffmanTable_B8, 2475 sizeof(HuffmanTable_B8) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B8)); 2476 JBIG2_ALLOC(SBHUFFDT, CJBig2_HuffmanTable(HuffmanTable_B11, 2477 sizeof(HuffmanTable_B11) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B11)); 2478 JBIG2_ALLOC(SBHUFFRDW, CJBig2_HuffmanTable(HuffmanTable_B15, 2479 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2480 JBIG2_ALLOC(SBHUFFRDH, CJBig2_HuffmanTable(HuffmanTable_B15, 2481 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2482 JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, 2483 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2484 JBIG2_ALLOC(SBHUFFRDY, CJBig2_HuffmanTable(HuffmanTable_B15, 2485 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2486 JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, 2487 sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); 2488 pDecoder->SBHUFFFS = SBHUFFFS; 2489 pDecoder->SBHUFFDS = SBHUFFDS; 2490 pDecoder->SBHUFFDT = SBHUFFDT; 2491 pDecoder->SBHUFFRDW = SBHUFFRDW; 2492 pDecoder->SBHUFFRDH = SBHUFFRDH; 2493 pDecoder->SBHUFFRDX = SBHUFFRDX; 2494 pDecoder->SBHUFFRDY = SBHUFFRDY; 2495 pDecoder->SBHUFFRSIZE = SBHUFFRSIZE; 2496 pDecoder->SBRTEMPLATE = SDRTEMPLATE; 2497 pDecoder->SBRAT[0] = SDRAT[0]; 2498 pDecoder->SBRAT[1] = SDRAT[1]; 2499 pDecoder->SBRAT[2] = SDRAT[2]; 2500 pDecoder->SBRAT[3] = SDRAT[3]; 2501 JBig2IntDecoderState ids; 2502 ids.IADT = IADT; 2503 ids.IAFS = IAFS; 2504 ids.IADS = IADS; 2505 ids.IAIT = IAIT; 2506 ids.IARI = IARI; 2507 ids.IARDW = IARDW; 2508 ids.IARDH = IARDH; 2509 ids.IARDX = IARDX; 2510 ids.IARDY = IARDY; 2511 ids.IAID = IAID; 2512 BS = pDecoder->decode_Arith(pArithDecoder, grContext, &ids); 2513 if(BS == NULL) { 2514 m_pModule->JBig2_Free(SBSYMS); 2515 delete SBHUFFFS; 2516 delete SBHUFFDS; 2517 delete SBHUFFDT; 2518 delete SBHUFFRDW; 2519 delete SBHUFFRDH; 2520 delete SBHUFFRDX; 2521 delete SBHUFFRDY; 2522 delete SBHUFFRSIZE; 2523 delete pDecoder; 2524 goto failed; 2525 } 2526 m_pModule->JBig2_Free(SBSYMS); 2527 delete SBHUFFFS; 2528 delete SBHUFFDS; 2529 delete SBHUFFDT; 2530 delete SBHUFFRDW; 2531 delete SBHUFFRDH; 2532 delete SBHUFFRDX; 2533 delete SBHUFFRDY; 2534 delete SBHUFFRSIZE; 2535 delete pDecoder; 2536 } else if(REFAGGNINST == 1) { 2537 SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; 2538 if(IAID->decode(pArithDecoder, (int*)&IDI) == -1) { 2539 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2540 goto failed; 2541 } 2542 if((IARDX->decode(pArithDecoder, &RDXI) == -1) 2543 || (IARDY->decode(pArithDecoder, &RDYI) == -1)) { 2544 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2545 goto failed; 2546 } 2547 if (IDI >= SBNUMSYMS) { 2548 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith):" 2549 " refinement references unknown symbol %d", IDI); 2550 goto failed; 2551 } 2552 SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); 2553 JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); 2554 JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); 2555 if (!SBSYMS[IDI]) { 2556 m_pModule->JBig2_Free(SBSYMS); 2557 goto failed; 2558 } 2559 JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); 2560 pGRRD->GRW = SYMWIDTH; 2561 pGRRD->GRH = HCHEIGHT; 2562 pGRRD->GRTEMPLATE = SDRTEMPLATE; 2563 pGRRD->GRREFERENCE = SBSYMS[IDI]; 2564 pGRRD->GRREFERENCEDX = RDXI; 2565 pGRRD->GRREFERENCEDY = RDYI; 2566 pGRRD->TPGRON = 0; 2567 pGRRD->GRAT[0] = SDRAT[0]; 2568 pGRRD->GRAT[1] = SDRAT[1]; 2569 pGRRD->GRAT[2] = SDRAT[2]; 2570 pGRRD->GRAT[3] = SDRAT[3]; 2571 BS = pGRRD->decode(pArithDecoder, grContext); 2572 if(BS == NULL) { 2573 m_pModule->JBig2_Free(SBSYMS); 2574 delete pGRRD; 2575 goto failed; 2576 } 2577 m_pModule->JBig2_Free(SBSYMS); 2578 delete pGRRD; 2579 } 2580 } 2581 SDNEWSYMS[NSYMSDECODED] = BS; 2582 BS = NULL; 2583 NSYMSDECODED = NSYMSDECODED + 1; 2584 } 2585 } 2586 EXINDEX = 0; 2587 CUREXFLAG = 0; 2588 EXFLAGS = (FX_BOOL*)m_pModule->JBig2_Malloc2(sizeof(FX_BOOL), (SDNUMINSYMS + SDNUMNEWSYMS)); 2589 while(EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { 2590 if(IAEX->decode(pArithDecoder, (int*)&EXRUNLENGTH) == -1) { 2591 m_pModule->JBig2_Free(EXFLAGS); 2592 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2593 goto failed; 2594 } 2595 if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { 2596 m_pModule->JBig2_Free(EXFLAGS); 2597 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): Invalid EXRUNLENGTH value."); 2598 goto failed; 2599 } 2600 if(EXRUNLENGTH != 0) { 2601 for(I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { 2602 EXFLAGS[I] = CUREXFLAG; 2603 } 2604 } 2605 EXINDEX = EXINDEX + EXRUNLENGTH; 2606 CUREXFLAG = !CUREXFLAG; 2607 } 2608 JBIG2_ALLOC(pDict, CJBig2_SymbolDict()); 2609 pDict->SDNUMEXSYMS = SDNUMEXSYMS; 2610 pDict->SDEXSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), SDNUMEXSYMS); 2611 I = J = 0; 2612 for(I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { 2613 if(EXFLAGS[I] && J < SDNUMEXSYMS) { 2614 if(I < SDNUMINSYMS) { 2615 JBIG2_ALLOC(pDict->SDEXSYMS[J], CJBig2_Image(*SDINSYMS[I])); 2616 } else { 2617 pDict->SDEXSYMS[J] = SDNEWSYMS[I - SDNUMINSYMS]; 2618 } 2619 J = J + 1; 2620 } else if (!EXFLAGS[I] && I >= SDNUMINSYMS) { 2621 delete SDNEWSYMS[I - SDNUMINSYMS]; 2622 } 2623 } 2624 if (J < SDNUMEXSYMS) { 2625 pDict->SDNUMEXSYMS = J; 2626 } 2627 m_pModule->JBig2_Free(EXFLAGS); 2628 m_pModule->JBig2_Free(SDNEWSYMS); 2629 delete IADH; 2630 delete IADW; 2631 delete IAAI; 2632 delete IARDX; 2633 delete IARDY; 2634 delete IAEX; 2635 delete IAID; 2636 delete IADT; 2637 delete IAFS; 2638 delete IADS; 2639 delete IAIT; 2640 delete IARI; 2641 delete IARDW; 2642 delete IARDH; 2643 return pDict; 2644 failed: 2645 for(I = 0; I < NSYMSDECODED; I++) { 2646 if (SDNEWSYMS[I]) { 2647 delete SDNEWSYMS[I]; 2648 SDNEWSYMS[I] = NULL; 2649 } 2650 } 2651 m_pModule->JBig2_Free(SDNEWSYMS); 2652 delete IADH; 2653 delete IADW; 2654 delete IAAI; 2655 delete IARDX; 2656 delete IARDY; 2657 delete IAEX; 2658 delete IAID; 2659 delete IADT; 2660 delete IAFS; 2661 delete IADS; 2662 delete IAIT; 2663 delete IARI; 2664 delete IARDW; 2665 delete IARDH; 2666 return NULL; 2667 } 2668 CJBig2_SymbolDict *CJBig2_SDDProc::decode_Huffman(CJBig2_BitStream *pStream, 2669 JBig2ArithCtx *gbContext, JBig2ArithCtx *grContext, IFX_Pause* pPause) 2670 { 2671 CJBig2_Image **SDNEWSYMS; 2672 FX_DWORD *SDNEWSYMWIDTHS; 2673 FX_DWORD HCHEIGHT, NSYMSDECODED; 2674 FX_INT32 HCDH; 2675 FX_DWORD SYMWIDTH, TOTWIDTH, HCFIRSTSYM; 2676 FX_INT32 DW; 2677 CJBig2_Image *BS, *BHC; 2678 FX_DWORD I, J, REFAGGNINST; 2679 FX_BOOL *EXFLAGS; 2680 FX_DWORD EXINDEX; 2681 FX_BOOL CUREXFLAG; 2682 FX_DWORD EXRUNLENGTH; 2683 FX_INT32 nVal, nBits; 2684 FX_DWORD nTmp; 2685 FX_DWORD SBNUMSYMS; 2686 FX_BYTE SBSYMCODELEN; 2687 JBig2HuffmanCode *SBSYMCODES; 2688 FX_DWORD IDI; 2689 FX_INT32 RDXI, RDYI; 2690 FX_DWORD BMSIZE; 2691 FX_DWORD stride; 2692 CJBig2_Image **SBSYMS; 2693 CJBig2_HuffmanTable *SBHUFFFS, *SBHUFFDS, *SBHUFFDT, *SBHUFFRDW, *SBHUFFRDH, *SBHUFFRDX, *SBHUFFRDY, 2694 *SBHUFFRSIZE, *pTable; 2695 CJBig2_HuffmanDecoder *pHuffmanDecoder; 2696 CJBig2_GRRDProc *pGRRD; 2697 CJBig2_ArithDecoder *pArithDecoder; 2698 CJBig2_GRDProc *pGRD; 2699 CJBig2_SymbolDict *pDict; 2700 JBIG2_ALLOC(pHuffmanDecoder, CJBig2_HuffmanDecoder(pStream)); 2701 SDNEWSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(CJBig2_Image*)); 2702 FXSYS_memset32(SDNEWSYMS, 0 , SDNUMNEWSYMS * sizeof(CJBig2_Image*)); 2703 SDNEWSYMWIDTHS = NULL; 2704 BHC = NULL; 2705 if(SDREFAGG == 0) { 2706 SDNEWSYMWIDTHS = (FX_DWORD *)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(FX_DWORD)); 2707 FXSYS_memset32(SDNEWSYMWIDTHS, 0 , SDNUMNEWSYMS * sizeof(FX_DWORD)); 2708 } 2709 HCHEIGHT = 0; 2710 NSYMSDECODED = 0; 2711 BS = NULL; 2712 while(NSYMSDECODED < SDNUMNEWSYMS) { 2713 if(pHuffmanDecoder->decodeAValue(SDHUFFDH, &HCDH) != 0) { 2714 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2715 goto failed; 2716 } 2717 HCHEIGHT = HCHEIGHT + HCDH; 2718 if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { 2719 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): invalid HCHEIGHT value."); 2720 goto failed; 2721 } 2722 SYMWIDTH = 0; 2723 TOTWIDTH = 0; 2724 HCFIRSTSYM = NSYMSDECODED; 2725 for(;;) { 2726 nVal = pHuffmanDecoder->decodeAValue(SDHUFFDW, &DW); 2727 if(nVal == JBIG2_OOB) { 2728 break; 2729 } else if(nVal != 0) { 2730 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2731 goto failed; 2732 } else { 2733 if (NSYMSDECODED >= SDNUMNEWSYMS) { 2734 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): NSYMSDECODED >= SDNUMNEWSYMS."); 2735 goto failed; 2736 } 2737 SYMWIDTH = SYMWIDTH + DW; 2738 if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { 2739 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): invalid SYMWIDTH value."); 2740 goto failed; 2741 } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { 2742 TOTWIDTH = TOTWIDTH + SYMWIDTH; 2743 SDNEWSYMS[NSYMSDECODED] = NULL; 2744 NSYMSDECODED = NSYMSDECODED + 1; 2745 continue; 2746 } 2747 TOTWIDTH = TOTWIDTH + SYMWIDTH; 2748 } 2749 if(SDREFAGG == 1) { 2750 if(pHuffmanDecoder->decodeAValue(SDHUFFAGGINST, (int*)&REFAGGNINST) != 0) { 2751 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2752 goto failed; 2753 } 2754 BS = NULL; 2755 if(REFAGGNINST > 1) { 2756 CJBig2_TRDProc *pDecoder; 2757 JBIG2_ALLOC(pDecoder, CJBig2_TRDProc()); 2758 pDecoder->SBHUFF = SDHUFF; 2759 pDecoder->SBREFINE = 1; 2760 pDecoder->SBW = SYMWIDTH; 2761 pDecoder->SBH = HCHEIGHT; 2762 pDecoder->SBNUMINSTANCES = REFAGGNINST; 2763 pDecoder->SBSTRIPS = 1; 2764 pDecoder->SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; 2765 SBNUMSYMS = pDecoder->SBNUMSYMS; 2766 SBSYMCODES = (JBig2HuffmanCode*)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(JBig2HuffmanCode)); 2767 nTmp = 1; 2768 while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { 2769 nTmp ++; 2770 } 2771 for(I = 0; I < SBNUMSYMS; I++) { 2772 SBSYMCODES[I].codelen = nTmp; 2773 SBSYMCODES[I].code = I; 2774 } 2775 pDecoder->SBSYMCODES = SBSYMCODES; 2776 SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); 2777 JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); 2778 JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); 2779 pDecoder->SBSYMS = SBSYMS; 2780 pDecoder->SBDEFPIXEL = 0; 2781 pDecoder->SBCOMBOP = JBIG2_COMPOSE_OR; 2782 pDecoder->TRANSPOSED = 0; 2783 pDecoder->REFCORNER = JBIG2_CORNER_TOPLEFT; 2784 pDecoder->SBDSOFFSET = 0; 2785 JBIG2_ALLOC(SBHUFFFS, CJBig2_HuffmanTable(HuffmanTable_B6, 2786 sizeof(HuffmanTable_B6) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B6)); 2787 JBIG2_ALLOC(SBHUFFDS, CJBig2_HuffmanTable(HuffmanTable_B8, 2788 sizeof(HuffmanTable_B8) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B8)); 2789 JBIG2_ALLOC(SBHUFFDT, CJBig2_HuffmanTable(HuffmanTable_B11, 2790 sizeof(HuffmanTable_B11) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B11)); 2791 JBIG2_ALLOC(SBHUFFRDW, CJBig2_HuffmanTable(HuffmanTable_B15, 2792 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2793 JBIG2_ALLOC(SBHUFFRDH, CJBig2_HuffmanTable(HuffmanTable_B15, 2794 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2795 JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, 2796 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2797 JBIG2_ALLOC(SBHUFFRDY, CJBig2_HuffmanTable(HuffmanTable_B15, 2798 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2799 JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, 2800 sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); 2801 pDecoder->SBHUFFFS = SBHUFFFS; 2802 pDecoder->SBHUFFDS = SBHUFFDS; 2803 pDecoder->SBHUFFDT = SBHUFFDT; 2804 pDecoder->SBHUFFRDW = SBHUFFRDW; 2805 pDecoder->SBHUFFRDH = SBHUFFRDH; 2806 pDecoder->SBHUFFRDX = SBHUFFRDX; 2807 pDecoder->SBHUFFRDY = SBHUFFRDY; 2808 pDecoder->SBHUFFRSIZE = SBHUFFRSIZE; 2809 pDecoder->SBRTEMPLATE = SDRTEMPLATE; 2810 pDecoder->SBRAT[0] = SDRAT[0]; 2811 pDecoder->SBRAT[1] = SDRAT[1]; 2812 pDecoder->SBRAT[2] = SDRAT[2]; 2813 pDecoder->SBRAT[3] = SDRAT[3]; 2814 BS = pDecoder->decode_Huffman(pStream, grContext); 2815 if(BS == NULL) { 2816 m_pModule->JBig2_Free(SBSYMCODES); 2817 m_pModule->JBig2_Free(SBSYMS); 2818 delete SBHUFFFS; 2819 delete SBHUFFDS; 2820 delete SBHUFFDT; 2821 delete SBHUFFRDW; 2822 delete SBHUFFRDH; 2823 delete SBHUFFRDX; 2824 delete SBHUFFRDY; 2825 delete SBHUFFRSIZE; 2826 delete pDecoder; 2827 goto failed; 2828 } 2829 m_pModule->JBig2_Free(SBSYMCODES); 2830 m_pModule->JBig2_Free(SBSYMS); 2831 delete SBHUFFFS; 2832 delete SBHUFFDS; 2833 delete SBHUFFDT; 2834 delete SBHUFFRDW; 2835 delete SBHUFFRDH; 2836 delete SBHUFFRDX; 2837 delete SBHUFFRDY; 2838 delete SBHUFFRSIZE; 2839 delete pDecoder; 2840 } else if(REFAGGNINST == 1) { 2841 SBNUMSYMS = SDNUMINSYMS + SDNUMNEWSYMS; 2842 nTmp = 1; 2843 while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { 2844 nTmp ++; 2845 } 2846 SBSYMCODELEN = (FX_BYTE)nTmp; 2847 SBSYMCODES = (JBig2HuffmanCode*)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(JBig2HuffmanCode)); 2848 for(I = 0; I < SBNUMSYMS; I++) { 2849 SBSYMCODES[I].codelen = SBSYMCODELEN; 2850 SBSYMCODES[I].code = I; 2851 } 2852 nVal = 0; 2853 nBits = 0; 2854 for(;;) { 2855 if(pStream->read1Bit(&nTmp) != 0) { 2856 m_pModule->JBig2_Free(SBSYMCODES); 2857 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2858 goto failed; 2859 } 2860 nVal = (nVal << 1) | nTmp; 2861 for(IDI = 0; IDI < SBNUMSYMS; IDI++) { 2862 if((nVal == SBSYMCODES[IDI].code) 2863 && (nBits == SBSYMCODES[IDI].codelen)) { 2864 break; 2865 } 2866 } 2867 if(IDI < SBNUMSYMS) { 2868 break; 2869 } 2870 } 2871 m_pModule->JBig2_Free(SBSYMCODES); 2872 JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, 2873 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2874 JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, 2875 sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); 2876 if((pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDXI) != 0) 2877 || (pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDYI) != 0) 2878 || (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE, &nVal) != 0)) { 2879 delete SBHUFFRDX; 2880 delete SBHUFFRSIZE; 2881 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2882 goto failed; 2883 } 2884 delete SBHUFFRDX; 2885 delete SBHUFFRSIZE; 2886 pStream->alignByte(); 2887 nTmp = pStream->getOffset(); 2888 SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); 2889 JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); 2890 JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); 2891 JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); 2892 pGRRD->GRW = SYMWIDTH; 2893 pGRRD->GRH = HCHEIGHT; 2894 pGRRD->GRTEMPLATE = SDRTEMPLATE; 2895 pGRRD->GRREFERENCE = SBSYMS[IDI]; 2896 pGRRD->GRREFERENCEDX = RDXI; 2897 pGRRD->GRREFERENCEDY = RDYI; 2898 pGRRD->TPGRON = 0; 2899 pGRRD->GRAT[0] = SDRAT[0]; 2900 pGRRD->GRAT[1] = SDRAT[1]; 2901 pGRRD->GRAT[2] = SDRAT[2]; 2902 pGRRD->GRAT[3] = SDRAT[3]; 2903 JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(pStream)); 2904 BS = pGRRD->decode(pArithDecoder, grContext); 2905 if(BS == NULL) { 2906 m_pModule->JBig2_Free(SBSYMS); 2907 delete pGRRD; 2908 delete pArithDecoder; 2909 goto failed; 2910 } 2911 pStream->alignByte(); 2912 pStream->offset(2); 2913 if((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { 2914 delete BS; 2915 m_pModule->JBig2_Free(SBSYMS); 2916 delete pGRRD; 2917 delete pArithDecoder; 2918 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman):" 2919 "bytes processed by generic refinement region decoding procedure doesn't equal SBHUFFRSIZE."); 2920 goto failed; 2921 } 2922 m_pModule->JBig2_Free(SBSYMS); 2923 delete pGRRD; 2924 delete pArithDecoder; 2925 } 2926 SDNEWSYMS[NSYMSDECODED] = BS; 2927 } 2928 if(SDREFAGG == 0) { 2929 SDNEWSYMWIDTHS[NSYMSDECODED] = SYMWIDTH; 2930 } 2931 NSYMSDECODED = NSYMSDECODED + 1; 2932 } 2933 if(SDREFAGG == 0) { 2934 if(pHuffmanDecoder->decodeAValue(SDHUFFBMSIZE, (FX_INT32*)&BMSIZE) != 0) { 2935 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2936 goto failed; 2937 } 2938 pStream->alignByte(); 2939 if(BMSIZE == 0) { 2940 stride = (TOTWIDTH + 7) >> 3; 2941 if(pStream->getByteLeft() >= stride * HCHEIGHT) { 2942 JBIG2_ALLOC(BHC, CJBig2_Image(TOTWIDTH, HCHEIGHT)); 2943 for(I = 0; I < HCHEIGHT; I ++) { 2944 JBIG2_memcpy(BHC->m_pData + I * BHC->m_nStride, pStream->getPointer(), stride); 2945 pStream->offset(stride); 2946 } 2947 } else { 2948 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2949 goto failed; 2950 } 2951 } else { 2952 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 2953 pGRD->MMR = 1; 2954 pGRD->GBW = TOTWIDTH; 2955 pGRD->GBH = HCHEIGHT; 2956 FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHC, pStream); 2957 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 2958 pGRD->Continue_decode(pPause); 2959 } 2960 delete pGRD; 2961 pStream->alignByte(); 2962 } 2963 nTmp = 0; 2964 if (!BHC) { 2965 continue; 2966 } 2967 for(I = HCFIRSTSYM; I < NSYMSDECODED; I++) { 2968 SDNEWSYMS[I] = BHC->subImage(nTmp, 0, SDNEWSYMWIDTHS[I], HCHEIGHT); 2969 nTmp += SDNEWSYMWIDTHS[I]; 2970 } 2971 delete BHC; 2972 BHC = NULL; 2973 } 2974 } 2975 EXINDEX = 0; 2976 CUREXFLAG = 0; 2977 JBIG2_ALLOC(pTable, CJBig2_HuffmanTable(HuffmanTable_B1, 2978 sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); 2979 EXFLAGS = (FX_BOOL*)m_pModule->JBig2_Malloc2(sizeof(FX_BOOL), (SDNUMINSYMS + SDNUMNEWSYMS)); 2980 while(EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { 2981 if(pHuffmanDecoder->decodeAValue(pTable, (int*)&EXRUNLENGTH) != 0) { 2982 delete pTable; 2983 m_pModule->JBig2_Free(EXFLAGS); 2984 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2985 goto failed; 2986 } 2987 if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { 2988 delete pTable; 2989 m_pModule->JBig2_Free(EXFLAGS); 2990 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): Invalid EXRUNLENGTH value."); 2991 goto failed; 2992 } 2993 if(EXRUNLENGTH != 0) { 2994 for(I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { 2995 EXFLAGS[I] = CUREXFLAG; 2996 } 2997 } 2998 EXINDEX = EXINDEX + EXRUNLENGTH; 2999 CUREXFLAG = !CUREXFLAG; 3000 } 3001 delete pTable; 3002 JBIG2_ALLOC(pDict, CJBig2_SymbolDict()); 3003 pDict->SDNUMEXSYMS = SDNUMEXSYMS; 3004 pDict->SDEXSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), SDNUMEXSYMS); 3005 I = J = 0; 3006 for(I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { 3007 if(EXFLAGS[I] && J < SDNUMEXSYMS) { 3008 if(I < SDNUMINSYMS) { 3009 JBIG2_ALLOC(pDict->SDEXSYMS[J], CJBig2_Image(*SDINSYMS[I])); 3010 } else { 3011 pDict->SDEXSYMS[J] = SDNEWSYMS[I - SDNUMINSYMS]; 3012 } 3013 J = J + 1; 3014 } else if (!EXFLAGS[I] && I >= SDNUMINSYMS) { 3015 delete SDNEWSYMS[I - SDNUMINSYMS]; 3016 } 3017 } 3018 if (J < SDNUMEXSYMS) { 3019 pDict->SDNUMEXSYMS = J; 3020 } 3021 m_pModule->JBig2_Free(EXFLAGS); 3022 m_pModule->JBig2_Free(SDNEWSYMS); 3023 if(SDREFAGG == 0) { 3024 m_pModule->JBig2_Free(SDNEWSYMWIDTHS); 3025 } 3026 delete pHuffmanDecoder; 3027 return pDict; 3028 failed: 3029 for(I = 0; I < NSYMSDECODED; I++) { 3030 if (SDNEWSYMS[I]) { 3031 delete SDNEWSYMS[I]; 3032 } 3033 } 3034 m_pModule->JBig2_Free(SDNEWSYMS); 3035 if(SDREFAGG == 0) { 3036 m_pModule->JBig2_Free(SDNEWSYMWIDTHS); 3037 } 3038 delete pHuffmanDecoder; 3039 return NULL; 3040 } 3041 CJBig2_Image *CJBig2_HTRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, 3042 JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3043 { 3044 FX_DWORD ng, mg; 3045 FX_INT32 x, y; 3046 CJBig2_Image *HSKIP; 3047 FX_DWORD HBPP; 3048 FX_DWORD *GI; 3049 CJBig2_Image *HTREG; 3050 CJBig2_GSIDProc *pGID; 3051 JBIG2_ALLOC(HTREG, CJBig2_Image(HBW, HBH)); 3052 HTREG->fill(HDEFPIXEL); 3053 HSKIP = NULL; 3054 if(HENABLESKIP == 1) { 3055 JBIG2_ALLOC(HSKIP, CJBig2_Image(HGW, HGH)); 3056 for(mg = 0; mg < HGH; mg++) { 3057 for(ng = 0; ng < HGW; ng++) { 3058 x = (HGX + mg * HRY + ng * HRX) >> 8; 3059 y = (HGY + mg * HRX - ng * HRY) >> 8; 3060 if((x + HPW <= 0) | (x >= (FX_INT32)HBW) 3061 | (y + HPH <= 0) | (y >= (FX_INT32)HPH)) { 3062 HSKIP->setPixel(ng, mg, 1); 3063 } else { 3064 HSKIP->setPixel(ng, mg, 0); 3065 } 3066 } 3067 } 3068 } 3069 HBPP = 1; 3070 while((FX_DWORD)(1 << HBPP) < HNUMPATS) { 3071 HBPP ++; 3072 } 3073 JBIG2_ALLOC(pGID, CJBig2_GSIDProc()); 3074 pGID->GSMMR = HMMR; 3075 pGID->GSW = HGW; 3076 pGID->GSH = HGH; 3077 pGID->GSBPP = (FX_BYTE)HBPP; 3078 pGID->GSUSESKIP = HENABLESKIP; 3079 pGID->GSKIP = HSKIP; 3080 pGID->GSTEMPLATE = HTEMPLATE; 3081 GI = pGID->decode_Arith(pArithDecoder, gbContext, pPause); 3082 if(GI == NULL) { 3083 goto failed; 3084 } 3085 for(mg = 0; mg < HGH; mg++) { 3086 for(ng = 0; ng < HGW; ng++) { 3087 x = (HGX + mg * HRY + ng * HRX) >> 8; 3088 y = (HGY + mg * HRX - ng * HRY) >> 8; 3089 FX_DWORD pat_index = GI[mg * HGW + ng]; 3090 if (pat_index >= HNUMPATS) { 3091 pat_index = HNUMPATS - 1; 3092 } 3093 HTREG->composeFrom(x, y, HPATS[pat_index], HCOMBOP); 3094 } 3095 } 3096 m_pModule->JBig2_Free(GI); 3097 if(HSKIP) { 3098 delete HSKIP; 3099 } 3100 delete pGID; 3101 return HTREG; 3102 failed: 3103 if(HSKIP) { 3104 delete HSKIP; 3105 } 3106 delete pGID; 3107 delete HTREG; 3108 return NULL; 3109 } 3110 CJBig2_Image *CJBig2_HTRDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) 3111 { 3112 FX_DWORD ng, mg; 3113 FX_INT32 x, y; 3114 FX_DWORD HBPP; 3115 FX_DWORD *GI; 3116 CJBig2_Image *HTREG; 3117 CJBig2_GSIDProc *pGID; 3118 JBIG2_ALLOC(HTREG, CJBig2_Image(HBW, HBH)); 3119 HTREG->fill(HDEFPIXEL); 3120 HBPP = 1; 3121 while((FX_DWORD)(1 << HBPP) < HNUMPATS) { 3122 HBPP ++; 3123 } 3124 JBIG2_ALLOC(pGID, CJBig2_GSIDProc()); 3125 pGID->GSMMR = HMMR; 3126 pGID->GSW = HGW; 3127 pGID->GSH = HGH; 3128 pGID->GSBPP = (FX_BYTE)HBPP; 3129 pGID->GSUSESKIP = 0; 3130 GI = pGID->decode_MMR(pStream, pPause); 3131 if(GI == NULL) { 3132 goto failed; 3133 } 3134 for(mg = 0; mg < HGH; mg++) { 3135 for(ng = 0; ng < HGW; ng++) { 3136 x = (HGX + mg * HRY + ng * HRX) >> 8; 3137 y = (HGY + mg * HRX - ng * HRY) >> 8; 3138 FX_DWORD pat_index = GI[mg * HGW + ng]; 3139 if (pat_index >= HNUMPATS) { 3140 pat_index = HNUMPATS - 1; 3141 } 3142 HTREG->composeFrom(x, y, HPATS[pat_index], HCOMBOP); 3143 } 3144 } 3145 m_pModule->JBig2_Free(GI); 3146 delete pGID; 3147 return HTREG; 3148 failed: 3149 delete pGID; 3150 delete HTREG; 3151 return NULL; 3152 } 3153 CJBig2_PatternDict *CJBig2_PDDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, 3154 JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3155 { 3156 FX_DWORD GRAY; 3157 CJBig2_Image *BHDC = NULL; 3158 CJBig2_PatternDict *pDict; 3159 CJBig2_GRDProc *pGRD; 3160 JBIG2_ALLOC(pDict, CJBig2_PatternDict()); 3161 pDict->NUMPATS = GRAYMAX + 1; 3162 pDict->HDPATS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), pDict->NUMPATS); 3163 JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*)*pDict->NUMPATS); 3164 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 3165 pGRD->MMR = HDMMR; 3166 pGRD->GBW = (GRAYMAX + 1) * HDPW; 3167 pGRD->GBH = HDPH; 3168 pGRD->GBTEMPLATE = HDTEMPLATE; 3169 pGRD->TPGDON = 0; 3170 pGRD->USESKIP = 0; 3171 pGRD->GBAT[0] = -(FX_INT32)HDPW; 3172 pGRD->GBAT[1] = 0; 3173 if(pGRD->GBTEMPLATE == 0) { 3174 pGRD->GBAT[2] = -3; 3175 pGRD->GBAT[3] = -1; 3176 pGRD->GBAT[4] = 2; 3177 pGRD->GBAT[5] = -2; 3178 pGRD->GBAT[6] = -2; 3179 pGRD->GBAT[7] = -2; 3180 } 3181 FXCODEC_STATUS status = pGRD->Start_decode_Arith(&BHDC, pArithDecoder, gbContext); 3182 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3183 pGRD->Continue_decode(pPause); 3184 } 3185 if(BHDC == NULL) { 3186 delete pGRD; 3187 goto failed; 3188 } 3189 delete pGRD; 3190 GRAY = 0; 3191 while(GRAY <= GRAYMAX) { 3192 pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); 3193 GRAY = GRAY + 1; 3194 } 3195 delete BHDC; 3196 return pDict; 3197 failed: 3198 delete pDict; 3199 return NULL; 3200 } 3201 3202 CJBig2_PatternDict *CJBig2_PDDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) 3203 { 3204 FX_DWORD GRAY; 3205 CJBig2_Image *BHDC = NULL; 3206 CJBig2_PatternDict *pDict; 3207 CJBig2_GRDProc *pGRD; 3208 JBIG2_ALLOC(pDict, CJBig2_PatternDict()); 3209 pDict->NUMPATS = GRAYMAX + 1; 3210 pDict->HDPATS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), pDict->NUMPATS); 3211 JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*)*pDict->NUMPATS); 3212 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 3213 pGRD->MMR = HDMMR; 3214 pGRD->GBW = (GRAYMAX + 1) * HDPW; 3215 pGRD->GBH = HDPH; 3216 FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHDC, pStream); 3217 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3218 pGRD->Continue_decode(pPause); 3219 } 3220 if(BHDC == NULL) { 3221 delete pGRD; 3222 goto failed; 3223 } 3224 delete pGRD; 3225 GRAY = 0; 3226 while(GRAY <= GRAYMAX) { 3227 pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); 3228 GRAY = GRAY + 1; 3229 } 3230 delete BHDC; 3231 return pDict; 3232 failed: 3233 delete pDict; 3234 return NULL; 3235 } 3236 FX_DWORD *CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, 3237 JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3238 { 3239 CJBig2_Image **GSPLANES; 3240 FX_INT32 J, K; 3241 FX_DWORD x, y; 3242 FX_DWORD *GSVALS; 3243 CJBig2_GRDProc *pGRD; 3244 GSPLANES = (CJBig2_Image **)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), GSBPP); 3245 if (!GSPLANES) { 3246 return NULL; 3247 } 3248 GSVALS = (FX_DWORD*)m_pModule->JBig2_Malloc3(sizeof(FX_DWORD), GSW, GSH); 3249 if (!GSVALS) { 3250 m_pModule->JBig2_Free(GSPLANES); 3251 return NULL; 3252 } 3253 JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*)*GSBPP); 3254 JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD)*GSW * GSH); 3255 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 3256 pGRD->MMR = GSMMR; 3257 pGRD->GBW = GSW; 3258 pGRD->GBH = GSH; 3259 pGRD->GBTEMPLATE = GSTEMPLATE; 3260 pGRD->TPGDON = 0; 3261 pGRD->USESKIP = GSUSESKIP; 3262 pGRD->SKIP = GSKIP; 3263 if(GSTEMPLATE <= 1) { 3264 pGRD->GBAT[0] = 3; 3265 } else { 3266 pGRD->GBAT[0] = 2; 3267 } 3268 pGRD->GBAT[1] = -1; 3269 if(pGRD->GBTEMPLATE == 0) { 3270 pGRD->GBAT[2] = -3; 3271 pGRD->GBAT[3] = -1; 3272 pGRD->GBAT[4] = 2; 3273 pGRD->GBAT[5] = -2; 3274 pGRD->GBAT[6] = -2; 3275 pGRD->GBAT[7] = -2; 3276 } 3277 FXCODEC_STATUS status = pGRD->Start_decode_Arith(&GSPLANES[GSBPP - 1], pArithDecoder, gbContext); 3278 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3279 pGRD->Continue_decode(pPause); 3280 } 3281 if(GSPLANES[GSBPP - 1] == NULL) { 3282 goto failed; 3283 } 3284 J = GSBPP - 2; 3285 while(J >= 0) { 3286 FXCODEC_STATUS status = pGRD->Start_decode_Arith(&GSPLANES[J], pArithDecoder, gbContext); 3287 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3288 pGRD->Continue_decode(pPause); 3289 } 3290 if(GSPLANES[J] == NULL) { 3291 for(K = GSBPP - 1; K > J; K--) { 3292 delete GSPLANES[K]; 3293 goto failed; 3294 } 3295 } 3296 GSPLANES[J]->composeFrom(0, 0, GSPLANES[J + 1], JBIG2_COMPOSE_XOR); 3297 J = J - 1; 3298 } 3299 for(y = 0; y < GSH; y++) { 3300 for(x = 0; x < GSW; x++) { 3301 for(J = 0; J < GSBPP; J++) { 3302 GSVALS[y * GSW + x] |= GSPLANES[J]->getPixel(x, y) << J; 3303 } 3304 } 3305 } 3306 for(J = 0; J < GSBPP; J++) { 3307 delete GSPLANES[J]; 3308 } 3309 m_pModule->JBig2_Free(GSPLANES); 3310 delete pGRD; 3311 return GSVALS; 3312 failed: 3313 m_pModule->JBig2_Free(GSPLANES); 3314 delete pGRD; 3315 m_pModule->JBig2_Free(GSVALS); 3316 return NULL; 3317 } 3318 FX_DWORD *CJBig2_GSIDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) 3319 { 3320 CJBig2_Image **GSPLANES; 3321 FX_INT32 J, K; 3322 FX_DWORD x, y; 3323 FX_DWORD *GSVALS; 3324 CJBig2_GRDProc *pGRD; 3325 GSPLANES = (CJBig2_Image **)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), GSBPP); 3326 if (!GSPLANES) { 3327 return NULL; 3328 } 3329 GSVALS = (FX_DWORD*)m_pModule->JBig2_Malloc3(sizeof(FX_DWORD), GSW, GSH); 3330 if (!GSVALS) { 3331 if (GSPLANES) { 3332 m_pModule->JBig2_Free(GSPLANES); 3333 } 3334 return NULL; 3335 } 3336 JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*)*GSBPP); 3337 JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD)*GSW * GSH); 3338 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 3339 pGRD->MMR = GSMMR; 3340 pGRD->GBW = GSW; 3341 pGRD->GBH = GSH; 3342 FXCODEC_STATUS status = pGRD->Start_decode_MMR(&GSPLANES[GSBPP - 1], pStream); 3343 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3344 pGRD->Continue_decode(pPause); 3345 } 3346 if(GSPLANES[GSBPP - 1] == NULL) { 3347 goto failed; 3348 } 3349 pStream->alignByte(); 3350 pStream->offset(3); 3351 J = GSBPP - 2; 3352 while(J >= 0) { 3353 FXCODEC_STATUS status = pGRD->Start_decode_MMR(&GSPLANES[J], pStream); 3354 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3355 pGRD->Continue_decode(pPause); 3356 } 3357 if(GSPLANES[J] == NULL) { 3358 for(K = GSBPP - 1; K > J; K--) { 3359 delete GSPLANES[K]; 3360 goto failed; 3361 } 3362 } 3363 pStream->alignByte(); 3364 pStream->offset(3); 3365 GSPLANES[J]->composeFrom(0, 0, GSPLANES[J + 1], JBIG2_COMPOSE_XOR); 3366 J = J - 1; 3367 } 3368 for(y = 0; y < GSH; y++) { 3369 for(x = 0; x < GSW; x++) { 3370 for(J = 0; J < GSBPP; J++) { 3371 GSVALS[y * GSW + x] |= GSPLANES[J]->getPixel(x, y) << J; 3372 } 3373 } 3374 } 3375 for(J = 0; J < GSBPP; J++) { 3376 delete GSPLANES[J]; 3377 } 3378 m_pModule->JBig2_Free(GSPLANES); 3379 delete pGRD; 3380 return GSVALS; 3381 failed: 3382 m_pModule->JBig2_Free(GSPLANES); 3383 delete pGRD; 3384 m_pModule->JBig2_Free(GSVALS); 3385 return NULL; 3386 } 3387 FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3388 { 3389 if (GBW == 0 || GBH == 0) { 3390 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3391 return FXCODEC_STATUS_DECODE_FINISH; 3392 } 3393 m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; 3394 m_pPause = pPause; 3395 if(*pImage == NULL) { 3396 JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); 3397 } 3398 if ((*pImage)->m_pData == NULL) { 3399 delete *pImage; 3400 *pImage = NULL; 3401 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 3402 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3403 return FXCODEC_STATUS_ERROR; 3404 } 3405 m_DecodeType = 1; 3406 m_pImage = pImage; 3407 (*m_pImage)->fill(0); 3408 m_pArithDecoder = pArithDecoder; 3409 m_gbContext = gbContext; 3410 LTP = 0; 3411 m_pLine = NULL; 3412 m_loopIndex = 0; 3413 return decode_Arith(pPause); 3414 } 3415 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith(IFX_Pause* pPause) 3416 { 3417 int iline = m_loopIndex; 3418 CJBig2_Image* pImage = *m_pImage; 3419 if(GBTEMPLATE == 0) { 3420 if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1) 3421 && (GBAT[2] == (signed char) - 3) && (GBAT[3] == (signed char) - 1) 3422 && (GBAT[4] == 2) && (GBAT[5] == (signed char) - 2) 3423 && (GBAT[6] == (signed char) - 2) && (GBAT[7] == (signed char) - 2)) { 3424 m_ProssiveStatus = decode_Arith_Template0_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); 3425 } else { 3426 m_ProssiveStatus = decode_Arith_Template0_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); 3427 } 3428 } else if(GBTEMPLATE == 1) { 3429 if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1)) { 3430 m_ProssiveStatus = decode_Arith_Template1_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); 3431 } else { 3432 m_ProssiveStatus = decode_Arith_Template1_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); 3433 } 3434 } else if(GBTEMPLATE == 2) { 3435 if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { 3436 m_ProssiveStatus = decode_Arith_Template2_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); 3437 } else { 3438 m_ProssiveStatus = decode_Arith_Template2_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); 3439 } 3440 } else { 3441 if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { 3442 m_ProssiveStatus = decode_Arith_Template3_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); 3443 } else { 3444 m_ProssiveStatus = decode_Arith_Template3_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); 3445 } 3446 } 3447 m_ReplaceRect.left = 0; 3448 m_ReplaceRect.right = pImage->m_nWidth; 3449 m_ReplaceRect.top = iline; 3450 m_ReplaceRect.bottom = m_loopIndex; 3451 if(m_ProssiveStatus == FXCODEC_STATUS_DECODE_FINISH) { 3452 m_loopIndex = 0; 3453 } 3454 return m_ProssiveStatus; 3455 } 3456 FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith_V2(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3457 { 3458 if(GBW == 0 || GBH == 0) { 3459 * pImage = NULL; 3460 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3461 return FXCODEC_STATUS_DECODE_FINISH; 3462 } 3463 if(*pImage == NULL) { 3464 JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); 3465 } 3466 if ((*pImage)->m_pData == NULL) { 3467 delete *pImage; 3468 *pImage = NULL; 3469 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 3470 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3471 return FXCODEC_STATUS_ERROR; 3472 } 3473 m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; 3474 m_DecodeType = 2; 3475 m_pPause = pPause; 3476 m_pImage = pImage; 3477 (*m_pImage)->fill(0); 3478 LTP = 0; 3479 m_loopIndex = 0; 3480 m_pArithDecoder = pArithDecoder; 3481 m_gbContext = gbContext; 3482 return decode_Arith_V2(pPause); 3483 } 3484 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_V2(IFX_Pause* pPause) 3485 { 3486 FX_BOOL SLTP, bVal; 3487 FX_DWORD CONTEXT; 3488 CJBig2_Image *GBREG = *m_pImage; 3489 FX_DWORD line1, line2, line3; 3490 LTP = 0; 3491 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 3492 GBREG->fill(0); 3493 for(; m_loopIndex < GBH; m_loopIndex++) { 3494 if(TPGDON) { 3495 switch(GBTEMPLATE) { 3496 case 0: 3497 CONTEXT = 0x9b25; 3498 break; 3499 case 1: 3500 CONTEXT = 0x0795; 3501 break; 3502 case 2: 3503 CONTEXT = 0x00e5; 3504 break; 3505 case 3: 3506 CONTEXT = 0x0195; 3507 break; 3508 } 3509 SLTP = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3510 LTP = LTP ^ SLTP; 3511 } 3512 if(LTP == 1) { 3513 GBREG->copyLine(m_loopIndex, m_loopIndex - 1); 3514 } else { 3515 switch(GBTEMPLATE) { 3516 case 0: { 3517 line1 = GBREG->getPixel(1, m_loopIndex - 2); 3518 line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 1; 3519 line2 = GBREG->getPixel(2, m_loopIndex - 1); 3520 line2 |= GBREG->getPixel(1, m_loopIndex - 1) << 1; 3521 line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 2; 3522 line3 = 0; 3523 for(FX_DWORD w = 0; w < GBW; w++) { 3524 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3525 bVal = 0; 3526 } else { 3527 CONTEXT = line3; 3528 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3529 CONTEXT |= line2 << 5; 3530 CONTEXT |= GBREG->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; 3531 CONTEXT |= GBREG->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; 3532 CONTEXT |= line1 << 12; 3533 CONTEXT |= GBREG->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; 3534 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3535 } 3536 if(bVal) { 3537 GBREG->setPixel(w, m_loopIndex, bVal); 3538 } 3539 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 2)) & 0x07; 3540 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; 3541 line3 = ((line3 << 1) | bVal) & 0x0f; 3542 } 3543 } 3544 break; 3545 case 1: { 3546 line1 = GBREG->getPixel(2, m_loopIndex - 2); 3547 line1 |= GBREG->getPixel(1, m_loopIndex - 2) << 1; 3548 line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 2; 3549 line2 = GBREG->getPixel(2, m_loopIndex - 1); 3550 line2 |= GBREG->getPixel(1, m_loopIndex - 1) << 1; 3551 line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 2; 3552 line3 = 0; 3553 for(FX_DWORD w = 0; w < GBW; w++) { 3554 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3555 bVal = 0; 3556 } else { 3557 CONTEXT = line3; 3558 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 3; 3559 CONTEXT |= line2 << 4; 3560 CONTEXT |= line1 << 9; 3561 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3562 } 3563 if(bVal) { 3564 GBREG->setPixel(w, m_loopIndex, bVal); 3565 } 3566 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 2)) & 0x0f; 3567 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; 3568 line3 = ((line3 << 1) | bVal) & 0x07; 3569 } 3570 } 3571 break; 3572 case 2: { 3573 line1 = GBREG->getPixel(1, m_loopIndex - 2); 3574 line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 1; 3575 line2 = GBREG->getPixel(1, m_loopIndex - 1); 3576 line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 1; 3577 line3 = 0; 3578 for(FX_DWORD w = 0; w < GBW; w++) { 3579 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3580 bVal = 0; 3581 } else { 3582 CONTEXT = line3; 3583 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; 3584 CONTEXT |= line2 << 3; 3585 CONTEXT |= line1 << 7; 3586 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3587 } 3588 if(bVal) { 3589 GBREG->setPixel(w, m_loopIndex, bVal); 3590 } 3591 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 2)) & 0x07; 3592 line2 = ((line2 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 1)) & 0x0f; 3593 line3 = ((line3 << 1) | bVal) & 0x03; 3594 } 3595 } 3596 break; 3597 case 3: { 3598 line1 = GBREG->getPixel(1, m_loopIndex - 1); 3599 line1 |= GBREG->getPixel(0, m_loopIndex - 1) << 1; 3600 line2 = 0; 3601 for(FX_DWORD w = 0; w < GBW; w++) { 3602 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3603 bVal = 0; 3604 } else { 3605 CONTEXT = line2; 3606 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3607 CONTEXT |= line1 << 5; 3608 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3609 } 3610 if(bVal) { 3611 GBREG->setPixel(w, m_loopIndex, bVal); 3612 } 3613 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 1)) & 0x1f; 3614 line2 = ((line2 << 1) | bVal) & 0x0f; 3615 } 3616 } 3617 break; 3618 } 3619 } 3620 if(pPause && pPause->NeedToPauseNow()) { 3621 m_loopIndex ++; 3622 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3623 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3624 } 3625 } 3626 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3627 return FXCODEC_STATUS_DECODE_FINISH; 3628 } 3629 FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith_V1(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3630 { 3631 if(GBW == 0 || GBH == 0) { 3632 * pImage = NULL; 3633 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3634 return FXCODEC_STATUS_DECODE_FINISH; 3635 } 3636 if(*pImage == NULL) { 3637 JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); 3638 } 3639 if ((*pImage)->m_pData == NULL) { 3640 delete *pImage; 3641 *pImage = NULL; 3642 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 3643 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3644 return FXCODEC_STATUS_ERROR; 3645 } 3646 m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; 3647 m_pPause = pPause; 3648 m_pImage = pImage; 3649 m_DecodeType = 3; 3650 (*m_pImage)->fill(0); 3651 LTP = 0; 3652 m_loopIndex = 0; 3653 m_pArithDecoder = pArithDecoder; 3654 m_gbContext = gbContext; 3655 return decode_Arith_V1(pPause); 3656 } 3657 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_V1(IFX_Pause* pPause) 3658 { 3659 FX_BOOL SLTP, bVal; 3660 FX_DWORD CONTEXT = 0; 3661 CJBig2_Image *GBREG = (*m_pImage); 3662 for(; m_loopIndex < GBH; m_loopIndex++) { 3663 if(TPGDON) { 3664 switch(GBTEMPLATE) { 3665 case 0: 3666 CONTEXT = 0x9b25; 3667 break; 3668 case 1: 3669 CONTEXT = 0x0795; 3670 break; 3671 case 2: 3672 CONTEXT = 0x00e5; 3673 break; 3674 case 3: 3675 CONTEXT = 0x0195; 3676 break; 3677 } 3678 SLTP = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3679 LTP = LTP ^ SLTP; 3680 } 3681 if(LTP == 1) { 3682 for(FX_DWORD w = 0; w < GBW; w++) { 3683 GBREG->setPixel(w, m_loopIndex, GBREG->getPixel(w, m_loopIndex - 1)); 3684 } 3685 } else { 3686 for(FX_DWORD w = 0; w < GBW; w++) { 3687 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3688 GBREG->setPixel(w, m_loopIndex, 0); 3689 } else { 3690 CONTEXT = 0; 3691 switch(GBTEMPLATE) { 3692 case 0: 3693 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); 3694 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; 3695 CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; 3696 CONTEXT |= GBREG->getPixel(w - 4, m_loopIndex) << 3; 3697 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3698 CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 1) << 5; 3699 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 6; 3700 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 7; 3701 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 8; 3702 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 9; 3703 CONTEXT |= GBREG->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; 3704 CONTEXT |= GBREG->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; 3705 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 12; 3706 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 13; 3707 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 14; 3708 CONTEXT |= GBREG->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; 3709 break; 3710 case 1: 3711 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); 3712 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; 3713 CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; 3714 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 3; 3715 CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 1) << 4; 3716 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 5; 3717 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 6; 3718 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 7; 3719 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 8; 3720 CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 2) << 9; 3721 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 10; 3722 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 11; 3723 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 12; 3724 break; 3725 case 2: 3726 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); 3727 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; 3728 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; 3729 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 3; 3730 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 4; 3731 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 5; 3732 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 6; 3733 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 7; 3734 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 8; 3735 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 9; 3736 break; 3737 case 3: 3738 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); 3739 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; 3740 CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; 3741 CONTEXT |= GBREG->getPixel(w - 4, m_loopIndex) << 3; 3742 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3743 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 5; 3744 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 6; 3745 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 7; 3746 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 8; 3747 CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex - 1) << 9; 3748 break; 3749 } 3750 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3751 GBREG->setPixel(w, m_loopIndex, bVal); 3752 } 3753 } 3754 } 3755 if(pPause && pPause->NeedToPauseNow()) { 3756 m_loopIndex ++; 3757 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3758 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3759 } 3760 } 3761 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3762 return FXCODEC_STATUS_DECODE_FINISH; 3763 } 3764 FXCODEC_STATUS CJBig2_GRDProc::Start_decode_MMR(CJBig2_Image** pImage, CJBig2_BitStream *pStream, IFX_Pause* pPause) 3765 { 3766 int bitpos, i; 3767 JBIG2_ALLOC((* pImage), CJBig2_Image(GBW, GBH)); 3768 if ((* pImage)->m_pData == NULL) { 3769 delete (* pImage); 3770 (* pImage) = NULL; 3771 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 3772 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3773 return m_ProssiveStatus; 3774 } 3775 bitpos = (int)pStream->getBitPos(); 3776 _FaxG4Decode(m_pModule, pStream->getBuf(), pStream->getLength(), &bitpos, (* pImage)->m_pData, GBW, GBH, (* pImage)->m_nStride); 3777 pStream->setBitPos(bitpos); 3778 for(i = 0; (FX_DWORD)i < (* pImage)->m_nStride * GBH; i++) { 3779 (* pImage)->m_pData[i] = ~(* pImage)->m_pData[i]; 3780 } 3781 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3782 return m_ProssiveStatus; 3783 } 3784 FXCODEC_STATUS CJBig2_GRDProc::decode_MMR() 3785 { 3786 return m_ProssiveStatus; 3787 } 3788 FXCODEC_STATUS CJBig2_GRDProc::Continue_decode(IFX_Pause* pPause) 3789 { 3790 if(m_ProssiveStatus != FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3791 return m_ProssiveStatus; 3792 } 3793 switch (m_DecodeType) { 3794 case 1: 3795 return decode_Arith(pPause); 3796 case 2: 3797 return decode_Arith_V2(pPause); 3798 case 3: 3799 return decode_Arith_V1(pPause); 3800 case 4: 3801 return decode_MMR(); 3802 } 3803 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3804 return m_ProssiveStatus; 3805 } 3806 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template0_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3807 { 3808 FX_BOOL SLTP, bVal; 3809 FX_DWORD CONTEXT; 3810 FX_DWORD line1, line2; 3811 FX_BYTE *pLine1, *pLine2, cVal; 3812 FX_INT32 nStride, nStride2, k; 3813 FX_INT32 nLineBytes, nBitsLeft, cc; 3814 if(m_pLine == NULL) { 3815 m_pLine = pImage->m_pData; 3816 } 3817 nStride = pImage->m_nStride; 3818 nStride2 = nStride << 1; 3819 nLineBytes = ((GBW + 7) >> 3) - 1; 3820 nBitsLeft = GBW - (nLineBytes << 3); 3821 FX_DWORD height = GBH & 0x7fffffff; 3822 for(; m_loopIndex < height; m_loopIndex++) { 3823 if(TPGDON) { 3824 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 3825 LTP = LTP ^ SLTP; 3826 } 3827 if(LTP == 1) { 3828 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 3829 } else { 3830 if(m_loopIndex > 1) { 3831 pLine1 = m_pLine - nStride2; 3832 pLine2 = m_pLine - nStride; 3833 line1 = (*pLine1++) << 6; 3834 line2 = *pLine2++; 3835 CONTEXT = ((line1 & 0xf800) | (line2 & 0x07f0)); 3836 for(cc = 0; cc < nLineBytes; cc++) { 3837 line1 = (line1 << 8) | ((*pLine1++) << 6); 3838 line2 = (line2 << 8) | (*pLine2++); 3839 cVal = 0; 3840 for(k = 7; k >= 0; k--) { 3841 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3842 cVal |= bVal << k; 3843 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 3844 | ((line1 >> k) & 0x0800) 3845 | ((line2 >> k) & 0x0010)); 3846 } 3847 m_pLine[cc] = cVal; 3848 } 3849 line1 <<= 8; 3850 line2 <<= 8; 3851 cVal = 0; 3852 for(k = 0; k < nBitsLeft; k++) { 3853 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3854 cVal |= bVal << (7 - k); 3855 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 3856 | ((line1 >> (7 - k)) & 0x0800) 3857 | ((line2 >> (7 - k)) & 0x0010)); 3858 } 3859 m_pLine[nLineBytes] = cVal; 3860 } else { 3861 pLine2 = m_pLine - nStride; 3862 line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; 3863 CONTEXT = (line2 & 0x07f0); 3864 for(cc = 0; cc < nLineBytes; cc++) { 3865 if(m_loopIndex & 1) { 3866 line2 = (line2 << 8) | (*pLine2++); 3867 } 3868 cVal = 0; 3869 for(k = 7; k >= 0; k--) { 3870 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3871 cVal |= bVal << k; 3872 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 3873 | ((line2 >> k) & 0x0010)); 3874 } 3875 m_pLine[cc] = cVal; 3876 } 3877 line2 <<= 8; 3878 cVal = 0; 3879 for(k = 0; k < nBitsLeft; k++) { 3880 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3881 cVal |= bVal << (7 - k); 3882 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 3883 | ((line2 >> (7 - k)) & 0x0010)); 3884 } 3885 m_pLine[nLineBytes] = cVal; 3886 } 3887 } 3888 m_pLine += nStride; 3889 if(pPause && pPause->NeedToPauseNow()) { 3890 m_loopIndex++; 3891 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3892 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3893 } 3894 } 3895 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3896 return FXCODEC_STATUS_DECODE_FINISH; 3897 } 3898 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template0_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3899 { 3900 FX_BOOL SLTP, bVal; 3901 FX_DWORD CONTEXT; 3902 FX_DWORD line1, line2, line3; 3903 for(; m_loopIndex < GBH; m_loopIndex++) { 3904 if(TPGDON) { 3905 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 3906 LTP = LTP ^ SLTP; 3907 } 3908 if(LTP == 1) { 3909 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 3910 } else { 3911 line1 = pImage->getPixel(1, m_loopIndex - 2); 3912 line1 |= pImage->getPixel(0, m_loopIndex - 2) << 1; 3913 line2 = pImage->getPixel(2, m_loopIndex - 1); 3914 line2 |= pImage->getPixel(1, m_loopIndex - 1) << 1; 3915 line2 |= pImage->getPixel(0, m_loopIndex - 1) << 2; 3916 line3 = 0; 3917 for(FX_DWORD w = 0; w < GBW; w++) { 3918 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3919 bVal = 0; 3920 } else { 3921 CONTEXT = line3; 3922 CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3923 CONTEXT |= line2 << 5; 3924 CONTEXT |= pImage->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; 3925 CONTEXT |= pImage->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; 3926 CONTEXT |= line1 << 12; 3927 CONTEXT |= pImage->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; 3928 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3929 } 3930 if(bVal) { 3931 pImage->setPixel(w, m_loopIndex, bVal); 3932 } 3933 line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 2)) & 0x07; 3934 line2 = ((line2 << 1) | pImage->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; 3935 line3 = ((line3 << 1) | bVal) & 0x0f; 3936 } 3937 } 3938 if(pPause && pPause->NeedToPauseNow()) { 3939 m_loopIndex++; 3940 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3941 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3942 } 3943 } 3944 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3945 return FXCODEC_STATUS_DECODE_FINISH; 3946 } 3947 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template1_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3948 { 3949 FX_BOOL SLTP, bVal; 3950 FX_DWORD CONTEXT; 3951 FX_DWORD line1, line2; 3952 FX_BYTE *pLine1, *pLine2, cVal; 3953 FX_INT32 nStride, nStride2, k; 3954 FX_INT32 nLineBytes, nBitsLeft, cc; 3955 if (!m_pLine) { 3956 m_pLine = pImage->m_pData; 3957 } 3958 nStride = pImage->m_nStride; 3959 nStride2 = nStride << 1; 3960 nLineBytes = ((GBW + 7) >> 3) - 1; 3961 nBitsLeft = GBW - (nLineBytes << 3); 3962 for(; m_loopIndex < GBH; m_loopIndex++) { 3963 if(TPGDON) { 3964 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 3965 LTP = LTP ^ SLTP; 3966 } 3967 if(LTP == 1) { 3968 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 3969 } else { 3970 if(m_loopIndex > 1) { 3971 pLine1 = m_pLine - nStride2; 3972 pLine2 = m_pLine - nStride; 3973 line1 = (*pLine1++) << 4; 3974 line2 = *pLine2++; 3975 CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); 3976 for(cc = 0; cc < nLineBytes; cc++) { 3977 line1 = (line1 << 8) | ((*pLine1++) << 4); 3978 line2 = (line2 << 8) | (*pLine2++); 3979 cVal = 0; 3980 for(k = 7; k >= 0; k--) { 3981 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3982 cVal |= bVal << k; 3983 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 3984 | ((line1 >> k) & 0x0200) 3985 | ((line2 >> (k + 1)) & 0x0008); 3986 } 3987 m_pLine[cc] = cVal; 3988 } 3989 line1 <<= 8; 3990 line2 <<= 8; 3991 cVal = 0; 3992 for(k = 0; k < nBitsLeft; k++) { 3993 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3994 cVal |= bVal << (7 - k); 3995 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 3996 | ((line1 >> (7 - k)) & 0x0200) 3997 | ((line2 >> (8 - k)) & 0x0008); 3998 } 3999 m_pLine[nLineBytes] = cVal; 4000 } else { 4001 pLine2 = m_pLine - nStride; 4002 line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; 4003 CONTEXT = (line2 >> 1) & 0x01f8; 4004 for(cc = 0; cc < nLineBytes; cc++) { 4005 if(m_loopIndex & 1) { 4006 line2 = (line2 << 8) | (*pLine2++); 4007 } 4008 cVal = 0; 4009 for(k = 7; k >= 0; k--) { 4010 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4011 cVal |= bVal << k; 4012 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 4013 | ((line2 >> (k + 1)) & 0x0008); 4014 } 4015 m_pLine[cc] = cVal; 4016 } 4017 line2 <<= 8; 4018 cVal = 0; 4019 for(k = 0; k < nBitsLeft; k++) { 4020 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4021 cVal |= bVal << (7 - k); 4022 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 4023 | ((line2 >> (8 - k)) & 0x0008); 4024 } 4025 m_pLine[nLineBytes] = cVal; 4026 } 4027 } 4028 m_pLine += nStride; 4029 if(pPause && pPause->NeedToPauseNow()) { 4030 m_loopIndex++; 4031 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4032 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4033 } 4034 } 4035 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4036 return FXCODEC_STATUS_DECODE_FINISH; 4037 } 4038 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template1_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 4039 { 4040 FX_BOOL SLTP, bVal; 4041 FX_DWORD CONTEXT; 4042 FX_DWORD line1, line2, line3; 4043 for(FX_DWORD h = 0; h < GBH; h++) { 4044 if(TPGDON) { 4045 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 4046 LTP = LTP ^ SLTP; 4047 } 4048 if(LTP == 1) { 4049 pImage->copyLine(h, h - 1); 4050 } else { 4051 line1 = pImage->getPixel(2, h - 2); 4052 line1 |= pImage->getPixel(1, h - 2) << 1; 4053 line1 |= pImage->getPixel(0, h - 2) << 2; 4054 line2 = pImage->getPixel(2, h - 1); 4055 line2 |= pImage->getPixel(1, h - 1) << 1; 4056 line2 |= pImage->getPixel(0, h - 1) << 2; 4057 line3 = 0; 4058 for(FX_DWORD w = 0; w < GBW; w++) { 4059 if(USESKIP && SKIP->getPixel(w, h)) { 4060 bVal = 0; 4061 } else { 4062 CONTEXT = line3; 4063 CONTEXT |= pImage->getPixel(w + GBAT[0], h + GBAT[1]) << 3; 4064 CONTEXT |= line2 << 4; 4065 CONTEXT |= line1 << 9; 4066 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4067 } 4068 if(bVal) { 4069 pImage->setPixel(w, h, bVal); 4070 } 4071 line1 = ((line1 << 1) | pImage->getPixel(w + 3, h - 2)) & 0x0f; 4072 line2 = ((line2 << 1) | pImage->getPixel(w + 3, h - 1)) & 0x1f; 4073 line3 = ((line3 << 1) | bVal) & 0x07; 4074 } 4075 } 4076 if(pPause && pPause->NeedToPauseNow()) { 4077 m_loopIndex++; 4078 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4079 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4080 } 4081 } 4082 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4083 return FXCODEC_STATUS_DECODE_FINISH; 4084 } 4085 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template2_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 4086 { 4087 FX_BOOL SLTP, bVal; 4088 FX_DWORD CONTEXT; 4089 FX_DWORD line1, line2; 4090 FX_BYTE *pLine1, *pLine2, cVal; 4091 FX_INT32 nStride, nStride2, k; 4092 FX_INT32 nLineBytes, nBitsLeft, cc; 4093 if(!m_pLine) { 4094 m_pLine = pImage->m_pData; 4095 } 4096 nStride = pImage->m_nStride; 4097 nStride2 = nStride << 1; 4098 nLineBytes = ((GBW + 7) >> 3) - 1; 4099 nBitsLeft = GBW - (nLineBytes << 3); 4100 for(; m_loopIndex < GBH; m_loopIndex++) { 4101 if(TPGDON) { 4102 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 4103 LTP = LTP ^ SLTP; 4104 } 4105 if(LTP == 1) { 4106 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 4107 } else { 4108 if(m_loopIndex > 1) { 4109 pLine1 = m_pLine - nStride2; 4110 pLine2 = m_pLine - nStride; 4111 line1 = (*pLine1++) << 1; 4112 line2 = *pLine2++; 4113 CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); 4114 for(cc = 0; cc < nLineBytes; cc++) { 4115 line1 = (line1 << 8) | ((*pLine1++) << 1); 4116 line2 = (line2 << 8) | (*pLine2++); 4117 cVal = 0; 4118 for(k = 7; k >= 0; k--) { 4119 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4120 cVal |= bVal << k; 4121 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 4122 | ((line1 >> k) & 0x0080) 4123 | ((line2 >> (k + 3)) & 0x0004); 4124 } 4125 m_pLine[cc] = cVal; 4126 } 4127 line1 <<= 8; 4128 line2 <<= 8; 4129 cVal = 0; 4130 for(k = 0; k < nBitsLeft; k++) { 4131 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4132 cVal |= bVal << (7 - k); 4133 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 4134 | ((line1 >> (7 - k)) & 0x0080) 4135 | ((line2 >> (10 - k)) & 0x0004); 4136 } 4137 m_pLine[nLineBytes] = cVal; 4138 } else { 4139 pLine2 = m_pLine - nStride; 4140 line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; 4141 CONTEXT = (line2 >> 3) & 0x007c; 4142 for(cc = 0; cc < nLineBytes; cc++) { 4143 if(m_loopIndex & 1) { 4144 line2 = (line2 << 8) | (*pLine2++); 4145 } 4146 cVal = 0; 4147 for(k = 7; k >= 0; k--) { 4148 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4149 cVal |= bVal << k; 4150 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 4151 | ((line2 >> (k + 3)) & 0x0004); 4152 } 4153 m_pLine[cc] = cVal; 4154 } 4155 line2 <<= 8; 4156 cVal = 0; 4157 for(k = 0; k < nBitsLeft; k++) { 4158 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4159 cVal |= bVal << (7 - k); 4160 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 4161 | (((line2 >> (10 - k))) & 0x0004); 4162 } 4163 m_pLine[nLineBytes] = cVal; 4164 } 4165 } 4166 m_pLine += nStride; 4167 if(pPause && m_loopIndex % 50 == 0 && pPause->NeedToPauseNow()) { 4168 m_loopIndex++; 4169 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4170 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4171 } 4172 } 4173 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4174 return FXCODEC_STATUS_DECODE_FINISH; 4175 } 4176 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template2_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 4177 { 4178 FX_BOOL SLTP, bVal; 4179 FX_DWORD CONTEXT; 4180 FX_DWORD line1, line2, line3; 4181 for(; m_loopIndex < GBH; m_loopIndex++) { 4182 if(TPGDON) { 4183 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 4184 LTP = LTP ^ SLTP; 4185 } 4186 if(LTP == 1) { 4187 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 4188 } else { 4189 line1 = pImage->getPixel(1, m_loopIndex - 2); 4190 line1 |= pImage->getPixel(0, m_loopIndex - 2) << 1; 4191 line2 = pImage->getPixel(1, m_loopIndex - 1); 4192 line2 |= pImage->getPixel(0, m_loopIndex - 1) << 1; 4193 line3 = 0; 4194 for(FX_DWORD w = 0; w < GBW; w++) { 4195 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 4196 bVal = 0; 4197 } else { 4198 CONTEXT = line3; 4199 CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; 4200 CONTEXT |= line2 << 3; 4201 CONTEXT |= line1 << 7; 4202 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4203 } 4204 if(bVal) { 4205 pImage->setPixel(w, m_loopIndex, bVal); 4206 } 4207 line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 2)) & 0x07; 4208 line2 = ((line2 << 1) | pImage->getPixel(w + 2, m_loopIndex - 1)) & 0x0f; 4209 line3 = ((line3 << 1) | bVal) & 0x03; 4210 } 4211 } 4212 if(pPause && pPause->NeedToPauseNow()) { 4213 m_loopIndex++; 4214 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4215 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4216 } 4217 } 4218 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4219 return FXCODEC_STATUS_DECODE_FINISH; 4220 } 4221 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template3_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 4222 { 4223 FX_BOOL SLTP, bVal; 4224 FX_DWORD CONTEXT; 4225 FX_DWORD line1; 4226 FX_BYTE *pLine1, cVal; 4227 FX_INT32 nStride, k; 4228 FX_INT32 nLineBytes, nBitsLeft, cc; 4229 if (!m_pLine) { 4230 m_pLine = pImage->m_pData; 4231 } 4232 nStride = pImage->m_nStride; 4233 nLineBytes = ((GBW + 7) >> 3) - 1; 4234 nBitsLeft = GBW - (nLineBytes << 3); 4235 for(; m_loopIndex < GBH; m_loopIndex++) { 4236 if(TPGDON) { 4237 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 4238 LTP = LTP ^ SLTP; 4239 } 4240 if(LTP == 1) { 4241 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 4242 } else { 4243 if(m_loopIndex > 0) { 4244 pLine1 = m_pLine - nStride; 4245 line1 = *pLine1++; 4246 CONTEXT = (line1 >> 1) & 0x03f0; 4247 for(cc = 0; cc < nLineBytes; cc++) { 4248 line1 = (line1 << 8) | (*pLine1++); 4249 cVal = 0; 4250 for(k = 7; k >= 0; k--) { 4251 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4252 cVal |= bVal << k; 4253 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 4254 | ((line1 >> (k + 1)) & 0x0010); 4255 } 4256 m_pLine[cc] = cVal; 4257 } 4258 line1 <<= 8; 4259 cVal = 0; 4260 for(k = 0; k < nBitsLeft; k++) { 4261 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4262 cVal |= bVal << (7 - k); 4263 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 4264 | ((line1 >> (8 - k)) & 0x0010); 4265 } 4266 m_pLine[nLineBytes] = cVal; 4267 } else { 4268 CONTEXT = 0; 4269 for(cc = 0; cc < nLineBytes; cc++) { 4270 cVal = 0; 4271 for(k = 7; k >= 0; k--) { 4272 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4273 cVal |= bVal << k; 4274 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; 4275 } 4276 m_pLine[cc] = cVal; 4277 } 4278 cVal = 0; 4279 for(k = 0; k < nBitsLeft; k++) { 4280 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4281 cVal |= bVal << (7 - k); 4282 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; 4283 } 4284 m_pLine[nLineBytes] = cVal; 4285 } 4286 } 4287 m_pLine += nStride; 4288 if(pPause && pPause->NeedToPauseNow()) { 4289 m_loopIndex++; 4290 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4291 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4292 } 4293 } 4294 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4295 return FXCODEC_STATUS_DECODE_FINISH; 4296 } 4297 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template3_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 4298 { 4299 FX_BOOL SLTP, bVal; 4300 FX_DWORD CONTEXT; 4301 FX_DWORD line1, line2; 4302 for(; m_loopIndex < GBH; m_loopIndex++) { 4303 if(TPGDON) { 4304 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 4305 LTP = LTP ^ SLTP; 4306 } 4307 if(LTP == 1) { 4308 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 4309 } else { 4310 line1 = pImage->getPixel(1, m_loopIndex - 1); 4311 line1 |= pImage->getPixel(0, m_loopIndex - 1) << 1; 4312 line2 = 0; 4313 for(FX_DWORD w = 0; w < GBW; w++) { 4314 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 4315 bVal = 0; 4316 } else { 4317 CONTEXT = line2; 4318 CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 4319 CONTEXT |= line1 << 5; 4320 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4321 } 4322 if(bVal) { 4323 pImage->setPixel(w, m_loopIndex, bVal); 4324 } 4325 line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 1)) & 0x1f; 4326 line2 = ((line2 << 1) | bVal) & 0x0f; 4327 } 4328 } 4329 if(pPause && pPause->NeedToPauseNow()) { 4330 m_loopIndex++; 4331 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4332 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4333 } 4334 } 4335 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4336 return FXCODEC_STATUS_DECODE_FINISH; 4337 } 4338
