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 CJBig2_Image *CJBig2_GRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 14 { 15 if (GBW == 0 || GBH == 0) { 16 CJBig2_Image* pImage; 17 JBIG2_ALLOC(pImage, CJBig2_Image(GBW, GBH)); 18 return pImage; 19 } 20 if(GBTEMPLATE == 0) { 21 if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1) 22 && (GBAT[2] == (signed char) - 3) && (GBAT[3] == (signed char) - 1) 23 && (GBAT[4] == 2) && (GBAT[5] == (signed char) - 2) 24 && (GBAT[6] == (signed char) - 2) && (GBAT[7] == (signed char) - 2)) { 25 return decode_Arith_Template0_opt3(pArithDecoder, gbContext); 26 } else { 27 return decode_Arith_Template0_unopt(pArithDecoder, gbContext); 28 } 29 } else if(GBTEMPLATE == 1) { 30 if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1)) { 31 return decode_Arith_Template1_opt3(pArithDecoder, gbContext); 32 } else { 33 return decode_Arith_Template1_unopt(pArithDecoder, gbContext); 34 } 35 } else if(GBTEMPLATE == 2) { 36 if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { 37 return decode_Arith_Template2_opt3(pArithDecoder, gbContext); 38 } else { 39 return decode_Arith_Template2_unopt(pArithDecoder, gbContext); 40 } 41 } else { 42 if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { 43 return decode_Arith_Template3_opt3(pArithDecoder, gbContext); 44 } else { 45 return decode_Arith_Template3_unopt(pArithDecoder, gbContext); 46 } 47 } 48 } 49 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 50 { 51 FX_BOOL LTP, SLTP, bVal; 52 FX_DWORD CONTEXT; 53 CJBig2_Image *GBREG; 54 FX_DWORD line1, line2, line3; 55 LTP = 0; 56 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 57 GBREG->fill(0); 58 for(FX_DWORD h = 0; h < GBH; h++) { 59 if(TPGDON) { 60 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 61 LTP = LTP ^ SLTP; 62 } 63 if(LTP == 1) { 64 GBREG->copyLine(h, h - 1); 65 } else { 66 line1 = GBREG->getPixel(2, h - 2); 67 line1 |= GBREG->getPixel(1, h - 2) << 1; 68 line1 |= GBREG->getPixel(0, h - 2) << 2; 69 line2 = GBREG->getPixel(3, h - 1); 70 line2 |= GBREG->getPixel(2, h - 1) << 1; 71 line2 |= GBREG->getPixel(1, h - 1) << 2; 72 line2 |= GBREG->getPixel(0, h - 1) << 3; 73 line3 = 0; 74 for(FX_DWORD w = 0; w < GBW; w++) { 75 if(USESKIP && SKIP->getPixel(w, h)) { 76 bVal = 0; 77 } else { 78 CONTEXT = line3; 79 CONTEXT |= line2 << 4; 80 CONTEXT |= line1 << 11; 81 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 82 } 83 if(bVal) { 84 GBREG->setPixel(w, h, bVal); 85 } 86 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x1f; 87 line2 = ((line2 << 1) | GBREG->getPixel(w + 4, h - 1)) & 0x7f; 88 line3 = ((line3 << 1) | bVal) & 0x0f; 89 } 90 } 91 } 92 return GBREG; 93 } 94 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 95 { 96 FX_BOOL LTP, SLTP, bVal; 97 FX_DWORD CONTEXT; 98 CJBig2_Image *GBREG; 99 FX_DWORD line1, line2; 100 FX_BYTE *pLine, cVal; 101 FX_INTPTR nStride, nStride2; 102 FX_INT32 nBits, k; 103 LTP = 0; 104 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 105 if (GBREG->m_pData == NULL) { 106 delete GBREG; 107 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 108 return NULL; 109 } 110 pLine = GBREG->m_pData; 111 nStride = GBREG->m_nStride; 112 nStride2 = nStride << 1; 113 for(FX_DWORD h = 0; h < GBH; h++) { 114 if(TPGDON) { 115 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 116 LTP = LTP ^ SLTP; 117 } 118 if(LTP == 1) { 119 GBREG->copyLine(h, h - 1); 120 } else { 121 line1 = (h > 1) ? pLine[-nStride2] << 6 : 0; 122 line2 = (h > 0) ? pLine[-nStride] : 0; 123 CONTEXT = (line1 & 0xf800) | (line2 & 0x07f0); 124 for(FX_DWORD w = 0; w < GBW; w += 8) { 125 if(w + 8 < GBW) { 126 nBits = 8; 127 if(h > 1) { 128 line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 6); 129 } 130 if(h > 0) { 131 line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); 132 } 133 } else { 134 nBits = GBW - w; 135 if(h > 1) { 136 line1 <<= 8; 137 } 138 if(h > 0) { 139 line2 <<= 8; 140 } 141 } 142 cVal = 0; 143 for(k = 0; k < nBits; k++) { 144 if(USESKIP && SKIP->getPixel(w, h)) { 145 bVal = 0; 146 } else { 147 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 148 } 149 cVal |= bVal << (7 - k); 150 CONTEXT = ((CONTEXT & 0x7bf7) << 1) | bVal 151 | ((line1 >> (7 - k)) & 0x0800) 152 | ((line2 >> (7 - k)) & 0x0010); 153 } 154 pLine[w >> 3] = cVal; 155 } 156 } 157 pLine += nStride; 158 } 159 return GBREG; 160 } 161 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 162 { 163 FX_BOOL LTP, SLTP, bVal; 164 FX_DWORD CONTEXT; 165 CJBig2_Image *GBREG; 166 FX_DWORD line1, line2; 167 FX_BYTE *pLine, *pLine1, *pLine2, cVal; 168 FX_INT32 nStride, nStride2, k; 169 FX_INT32 nLineBytes, nBitsLeft, cc; 170 LTP = 0; 171 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 172 if (GBREG->m_pData == NULL) { 173 delete GBREG; 174 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 175 return NULL; 176 } 177 pLine = GBREG->m_pData; 178 nStride = GBREG->m_nStride; 179 nStride2 = nStride << 1; 180 nLineBytes = ((GBW + 7) >> 3) - 1; 181 nBitsLeft = GBW - (nLineBytes << 3); 182 FX_DWORD height = GBH & 0x7fffffff; 183 for(FX_DWORD h = 0; h < height; h++) { 184 if(TPGDON) { 185 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 186 LTP = LTP ^ SLTP; 187 } 188 if(LTP == 1) { 189 GBREG->copyLine(h, h - 1); 190 } else { 191 if(h > 1) { 192 pLine1 = pLine - nStride2; 193 pLine2 = pLine - nStride; 194 line1 = (*pLine1++) << 6; 195 line2 = *pLine2++; 196 CONTEXT = ((line1 & 0xf800) | (line2 & 0x07f0)); 197 for(cc = 0; cc < nLineBytes; cc++) { 198 line1 = (line1 << 8) | ((*pLine1++) << 6); 199 line2 = (line2 << 8) | (*pLine2++); 200 cVal = 0; 201 for(k = 7; k >= 0; k--) { 202 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 203 cVal |= bVal << k; 204 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 205 | ((line1 >> k) & 0x0800) 206 | ((line2 >> k) & 0x0010)); 207 } 208 pLine[cc] = cVal; 209 } 210 line1 <<= 8; 211 line2 <<= 8; 212 cVal = 0; 213 for(k = 0; k < nBitsLeft; k++) { 214 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 215 cVal |= bVal << (7 - k); 216 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 217 | ((line1 >> (7 - k)) & 0x0800) 218 | ((line2 >> (7 - k)) & 0x0010)); 219 } 220 pLine[nLineBytes] = cVal; 221 } else { 222 pLine2 = pLine - nStride; 223 line2 = (h & 1) ? (*pLine2++) : 0; 224 CONTEXT = (line2 & 0x07f0); 225 for(cc = 0; cc < nLineBytes; cc++) { 226 if(h & 1) { 227 line2 = (line2 << 8) | (*pLine2++); 228 } 229 cVal = 0; 230 for(k = 7; k >= 0; k--) { 231 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 232 cVal |= bVal << k; 233 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 234 | ((line2 >> k) & 0x0010)); 235 } 236 pLine[cc] = cVal; 237 } 238 line2 <<= 8; 239 cVal = 0; 240 for(k = 0; k < nBitsLeft; k++) { 241 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 242 cVal |= bVal << (7 - k); 243 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 244 | (((line2 >> (7 - k))) & 0x0010)); 245 } 246 pLine[nLineBytes] = cVal; 247 } 248 } 249 pLine += nStride; 250 } 251 return GBREG; 252 } 253 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 254 { 255 FX_BOOL LTP, SLTP, bVal; 256 FX_DWORD CONTEXT; 257 CJBig2_Image *GBREG; 258 FX_DWORD line1, line2, line3; 259 LTP = 0; 260 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 261 GBREG->fill(0); 262 for(FX_DWORD h = 0; h < GBH; h++) { 263 if(TPGDON) { 264 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 265 LTP = LTP ^ SLTP; 266 } 267 if(LTP == 1) { 268 GBREG->copyLine(h, h - 1); 269 } else { 270 line1 = GBREG->getPixel(1, h - 2); 271 line1 |= GBREG->getPixel(0, h - 2) << 1; 272 line2 = GBREG->getPixel(2, h - 1); 273 line2 |= GBREG->getPixel(1, h - 1) << 1; 274 line2 |= GBREG->getPixel(0, h - 1) << 2; 275 line3 = 0; 276 for(FX_DWORD w = 0; w < GBW; w++) { 277 if(USESKIP && SKIP->getPixel(w, h)) { 278 bVal = 0; 279 } else { 280 CONTEXT = line3; 281 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 282 CONTEXT |= line2 << 5; 283 CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; 284 CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; 285 CONTEXT |= line1 << 12; 286 CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; 287 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 288 } 289 if(bVal) { 290 GBREG->setPixel(w, h, bVal); 291 } 292 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 293 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 294 line3 = ((line3 << 1) | bVal) & 0x0f; 295 } 296 } 297 } 298 return GBREG; 299 } 300 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 301 { 302 FX_BOOL LTP, SLTP, bVal; 303 FX_DWORD CONTEXT; 304 CJBig2_Image *GBREG; 305 FX_DWORD line1, line2, line3; 306 LTP = 0; 307 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 308 GBREG->fill(0); 309 for(FX_DWORD h = 0; h < GBH; h++) { 310 if(TPGDON) { 311 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 312 LTP = LTP ^ SLTP; 313 } 314 if(LTP == 1) { 315 GBREG->copyLine(h, h - 1); 316 } else { 317 line1 = GBREG->getPixel(2, h - 2); 318 line1 |= GBREG->getPixel(1, h - 2) << 1; 319 line1 |= GBREG->getPixel(0, h - 2) << 2; 320 line2 = GBREG->getPixel(3, h - 1); 321 line2 |= GBREG->getPixel(2, h - 1) << 1; 322 line2 |= GBREG->getPixel(1, h - 1) << 2; 323 line2 |= GBREG->getPixel(0, h - 1) << 3; 324 line3 = 0; 325 for(FX_DWORD w = 0; w < GBW; w++) { 326 if(USESKIP && SKIP->getPixel(w, h)) { 327 bVal = 0; 328 } else { 329 CONTEXT = line3; 330 CONTEXT |= line2 << 3; 331 CONTEXT |= line1 << 9; 332 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 333 } 334 if(bVal) { 335 GBREG->setPixel(w, h, bVal); 336 } 337 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; 338 line2 = ((line2 << 1) | GBREG->getPixel(w + 4, h - 1)) & 0x3f; 339 line3 = ((line3 << 1) | bVal) & 0x07; 340 } 341 } 342 } 343 return GBREG; 344 } 345 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 346 { 347 FX_BOOL LTP, SLTP, bVal; 348 FX_DWORD CONTEXT; 349 CJBig2_Image *GBREG; 350 FX_DWORD line1, line2; 351 FX_BYTE *pLine, cVal; 352 FX_INTPTR nStride, nStride2; 353 FX_INT32 nBits, k; 354 LTP = 0; 355 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 356 if (GBREG->m_pData == NULL) { 357 delete GBREG; 358 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 359 return NULL; 360 } 361 pLine = GBREG->m_pData; 362 nStride = GBREG->m_nStride; 363 nStride2 = nStride << 1; 364 for(FX_DWORD h = 0; h < GBH; h++) { 365 if(TPGDON) { 366 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 367 LTP = LTP ^ SLTP; 368 } 369 if(LTP == 1) { 370 GBREG->copyLine(h, h - 1); 371 } else { 372 line1 = (h > 1) ? pLine[-nStride2] << 4 : 0; 373 line2 = (h > 0) ? pLine[-nStride] : 0; 374 CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); 375 for(FX_DWORD w = 0; w < GBW; w += 8) { 376 if(w + 8 < GBW) { 377 nBits = 8; 378 if(h > 1) { 379 line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 4); 380 } 381 if(h > 0) { 382 line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); 383 } 384 } else { 385 nBits = GBW - w; 386 if(h > 1) { 387 line1 <<= 8; 388 } 389 if(h > 0) { 390 line2 <<= 8; 391 } 392 } 393 cVal = 0; 394 for(k = 0; k < nBits; k++) { 395 if(USESKIP && SKIP->getPixel(w, h)) { 396 bVal = 0; 397 } else { 398 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 399 } 400 cVal |= bVal << (7 - k); 401 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 402 | ((line1 >> (7 - k)) & 0x0200) 403 | ((line2 >> (8 - k)) & 0x0008); 404 } 405 pLine[w >> 3] = cVal; 406 } 407 } 408 pLine += nStride; 409 } 410 return GBREG; 411 } 412 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 413 { 414 FX_BOOL LTP, SLTP, bVal; 415 FX_DWORD CONTEXT; 416 CJBig2_Image *GBREG; 417 FX_DWORD line1, line2; 418 FX_BYTE *pLine, *pLine1, *pLine2, cVal; 419 FX_INT32 nStride, nStride2, k; 420 FX_INT32 nLineBytes, nBitsLeft, cc; 421 LTP = 0; 422 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 423 if (GBREG->m_pData == NULL) { 424 delete GBREG; 425 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 426 return NULL; 427 } 428 pLine = GBREG->m_pData; 429 nStride = GBREG->m_nStride; 430 nStride2 = nStride << 1; 431 nLineBytes = ((GBW + 7) >> 3) - 1; 432 nBitsLeft = GBW - (nLineBytes << 3); 433 for(FX_DWORD h = 0; h < GBH; h++) { 434 if(TPGDON) { 435 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 436 LTP = LTP ^ SLTP; 437 } 438 if(LTP == 1) { 439 GBREG->copyLine(h, h - 1); 440 } else { 441 if(h > 1) { 442 pLine1 = pLine - nStride2; 443 pLine2 = pLine - nStride; 444 line1 = (*pLine1++) << 4; 445 line2 = *pLine2++; 446 CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); 447 for(cc = 0; cc < nLineBytes; cc++) { 448 line1 = (line1 << 8) | ((*pLine1++) << 4); 449 line2 = (line2 << 8) | (*pLine2++); 450 cVal = 0; 451 for(k = 7; k >= 0; k--) { 452 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 453 cVal |= bVal << k; 454 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 455 | ((line1 >> k) & 0x0200) 456 | ((line2 >> (k + 1)) & 0x0008); 457 } 458 pLine[cc] = cVal; 459 } 460 line1 <<= 8; 461 line2 <<= 8; 462 cVal = 0; 463 for(k = 0; k < nBitsLeft; k++) { 464 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 465 cVal |= bVal << (7 - k); 466 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 467 | ((line1 >> (7 - k)) & 0x0200) 468 | ((line2 >> (8 - k)) & 0x0008); 469 } 470 pLine[nLineBytes] = cVal; 471 } else { 472 pLine2 = pLine - nStride; 473 line2 = (h & 1) ? (*pLine2++) : 0; 474 CONTEXT = (line2 >> 1) & 0x01f8; 475 for(cc = 0; cc < nLineBytes; cc++) { 476 if(h & 1) { 477 line2 = (line2 << 8) | (*pLine2++); 478 } 479 cVal = 0; 480 for(k = 7; k >= 0; k--) { 481 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 482 cVal |= bVal << k; 483 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 484 | ((line2 >> (k + 1)) & 0x0008); 485 } 486 pLine[cc] = cVal; 487 } 488 line2 <<= 8; 489 cVal = 0; 490 for(k = 0; k < nBitsLeft; k++) { 491 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 492 cVal |= bVal << (7 - k); 493 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 494 | ((line2 >> (8 - k)) & 0x0008); 495 } 496 pLine[nLineBytes] = cVal; 497 } 498 } 499 pLine += nStride; 500 } 501 return GBREG; 502 } 503 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 504 { 505 FX_BOOL LTP, SLTP, bVal; 506 FX_DWORD CONTEXT; 507 CJBig2_Image *GBREG; 508 FX_DWORD line1, line2, line3; 509 LTP = 0; 510 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 511 GBREG->fill(0); 512 for(FX_DWORD h = 0; h < GBH; h++) { 513 if(TPGDON) { 514 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 515 LTP = LTP ^ SLTP; 516 } 517 if(LTP == 1) { 518 GBREG->copyLine(h, h - 1); 519 } else { 520 line1 = GBREG->getPixel(2, h - 2); 521 line1 |= GBREG->getPixel(1, h - 2) << 1; 522 line1 |= GBREG->getPixel(0, h - 2) << 2; 523 line2 = GBREG->getPixel(2, h - 1); 524 line2 |= GBREG->getPixel(1, h - 1) << 1; 525 line2 |= GBREG->getPixel(0, h - 1) << 2; 526 line3 = 0; 527 for(FX_DWORD w = 0; w < GBW; w++) { 528 if(USESKIP && SKIP->getPixel(w, h)) { 529 bVal = 0; 530 } else { 531 CONTEXT = line3; 532 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; 533 CONTEXT |= line2 << 4; 534 CONTEXT |= line1 << 9; 535 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 536 } 537 if(bVal) { 538 GBREG->setPixel(w, h, bVal); 539 } 540 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; 541 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 542 line3 = ((line3 << 1) | bVal) & 0x07; 543 } 544 } 545 } 546 return GBREG; 547 } 548 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 549 { 550 FX_BOOL LTP, SLTP, bVal; 551 FX_DWORD CONTEXT; 552 CJBig2_Image *GBREG; 553 FX_DWORD line1, line2, line3; 554 LTP = 0; 555 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 556 GBREG->fill(0); 557 for(FX_DWORD h = 0; h < GBH; h++) { 558 if(TPGDON) { 559 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 560 LTP = LTP ^ SLTP; 561 } 562 if(LTP == 1) { 563 GBREG->copyLine(h, h - 1); 564 } else { 565 line1 = GBREG->getPixel(1, h - 2); 566 line1 |= GBREG->getPixel(0, h - 2) << 1; 567 line2 = GBREG->getPixel(2, h - 1); 568 line2 |= GBREG->getPixel(1, h - 1) << 1; 569 line2 |= GBREG->getPixel(0, h - 1) << 2; 570 line3 = 0; 571 for(FX_DWORD w = 0; w < GBW; w++) { 572 if(USESKIP && SKIP->getPixel(w, h)) { 573 bVal = 0; 574 } else { 575 CONTEXT = line3; 576 CONTEXT |= line2 << 2; 577 CONTEXT |= line1 << 7; 578 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 579 } 580 if(bVal) { 581 GBREG->setPixel(w, h, bVal); 582 } 583 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 584 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 585 line3 = ((line3 << 1) | bVal) & 0x03; 586 } 587 } 588 } 589 return GBREG; 590 } 591 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 592 { 593 FX_BOOL LTP, SLTP, bVal; 594 FX_DWORD CONTEXT; 595 CJBig2_Image *GBREG; 596 FX_DWORD line1, line2; 597 FX_BYTE *pLine, cVal; 598 FX_INTPTR nStride, nStride2; 599 FX_INT32 nBits, k; 600 LTP = 0; 601 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 602 if (GBREG->m_pData == NULL) { 603 delete GBREG; 604 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 605 return NULL; 606 } 607 pLine = GBREG->m_pData; 608 nStride = GBREG->m_nStride; 609 nStride2 = nStride << 1; 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 = (h > 1) ? pLine[-nStride2] << 1 : 0; 619 line2 = (h > 0) ? pLine[-nStride] : 0; 620 CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); 621 for(FX_DWORD w = 0; w < GBW; w += 8) { 622 if(w + 8 < GBW) { 623 nBits = 8; 624 if(h > 1) { 625 line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 1); 626 } 627 if(h > 0) { 628 line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); 629 } 630 } else { 631 nBits = GBW - w; 632 if(h > 1) { 633 line1 <<= 8; 634 } 635 if(h > 0) { 636 line2 <<= 8; 637 } 638 } 639 cVal = 0; 640 for(k = 0; k < nBits; k++) { 641 if(USESKIP && SKIP->getPixel(w, h)) { 642 bVal = 0; 643 } else { 644 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 645 } 646 cVal |= bVal << (7 - k); 647 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 648 | ((line1 >> (7 - k)) & 0x0080) 649 | ((line2 >> (10 - k)) & 0x0004); 650 } 651 pLine[w >> 3] = cVal; 652 } 653 } 654 pLine += nStride; 655 } 656 return GBREG; 657 } 658 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 659 { 660 FX_BOOL LTP, SLTP, bVal; 661 FX_DWORD CONTEXT; 662 CJBig2_Image *GBREG; 663 FX_DWORD line1, line2; 664 FX_BYTE *pLine, *pLine1, *pLine2, cVal; 665 FX_INT32 nStride, nStride2, k; 666 FX_INT32 nLineBytes, nBitsLeft, cc; 667 LTP = 0; 668 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 669 if (GBREG->m_pData == NULL) { 670 delete GBREG; 671 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 672 return NULL; 673 } 674 pLine = GBREG->m_pData; 675 nStride = GBREG->m_nStride; 676 nStride2 = nStride << 1; 677 nLineBytes = ((GBW + 7) >> 3) - 1; 678 nBitsLeft = GBW - (nLineBytes << 3); 679 for(FX_DWORD h = 0; h < GBH; h++) { 680 if(TPGDON) { 681 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 682 LTP = LTP ^ SLTP; 683 } 684 if(LTP == 1) { 685 GBREG->copyLine(h, h - 1); 686 } else { 687 if(h > 1) { 688 pLine1 = pLine - nStride2; 689 pLine2 = pLine - nStride; 690 line1 = (*pLine1++) << 1; 691 line2 = *pLine2++; 692 CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); 693 for(cc = 0; cc < nLineBytes; cc++) { 694 line1 = (line1 << 8) | ((*pLine1++) << 1); 695 line2 = (line2 << 8) | (*pLine2++); 696 cVal = 0; 697 for(k = 7; k >= 0; k--) { 698 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 699 cVal |= bVal << k; 700 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 701 | ((line1 >> k) & 0x0080) 702 | ((line2 >> (k + 3)) & 0x0004); 703 } 704 pLine[cc] = cVal; 705 } 706 line1 <<= 8; 707 line2 <<= 8; 708 cVal = 0; 709 for(k = 0; k < nBitsLeft; k++) { 710 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 711 cVal |= bVal << (7 - k); 712 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 713 | ((line1 >> (7 - k)) & 0x0080) 714 | ((line2 >> (10 - k)) & 0x0004); 715 } 716 pLine[nLineBytes] = cVal; 717 } else { 718 pLine2 = pLine - nStride; 719 line2 = (h & 1) ? (*pLine2++) : 0; 720 CONTEXT = (line2 >> 3) & 0x007c; 721 for(cc = 0; cc < nLineBytes; cc++) { 722 if(h & 1) { 723 line2 = (line2 << 8) | (*pLine2++); 724 } 725 cVal = 0; 726 for(k = 7; k >= 0; k--) { 727 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 728 cVal |= bVal << k; 729 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 730 | ((line2 >> (k + 3)) & 0x0004); 731 } 732 pLine[cc] = cVal; 733 } 734 line2 <<= 8; 735 cVal = 0; 736 for(k = 0; k < nBitsLeft; k++) { 737 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 738 cVal |= bVal << (7 - k); 739 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 740 | (((line2 >> (10 - k))) & 0x0004); 741 } 742 pLine[nLineBytes] = cVal; 743 } 744 } 745 pLine += nStride; 746 } 747 return GBREG; 748 } 749 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 750 { 751 FX_BOOL LTP, SLTP, bVal; 752 FX_DWORD CONTEXT; 753 CJBig2_Image *GBREG; 754 FX_DWORD line1, line2, line3; 755 LTP = 0; 756 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 757 GBREG->fill(0); 758 for(FX_DWORD h = 0; h < GBH; h++) { 759 if(TPGDON) { 760 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 761 LTP = LTP ^ SLTP; 762 } 763 if(LTP == 1) { 764 GBREG->copyLine(h, h - 1); 765 } else { 766 line1 = GBREG->getPixel(1, h - 2); 767 line1 |= GBREG->getPixel(0, h - 2) << 1; 768 line2 = GBREG->getPixel(1, h - 1); 769 line2 |= GBREG->getPixel(0, h - 1) << 1; 770 line3 = 0; 771 for(FX_DWORD w = 0; w < GBW; w++) { 772 if(USESKIP && SKIP->getPixel(w, h)) { 773 bVal = 0; 774 } else { 775 CONTEXT = line3; 776 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; 777 CONTEXT |= line2 << 3; 778 CONTEXT |= line1 << 7; 779 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 780 } 781 if(bVal) { 782 GBREG->setPixel(w, h, bVal); 783 } 784 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 785 line2 = ((line2 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x0f; 786 line3 = ((line3 << 1) | bVal) & 0x03; 787 } 788 } 789 } 790 return GBREG; 791 } 792 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 793 { 794 FX_BOOL LTP, SLTP, bVal; 795 FX_DWORD CONTEXT; 796 CJBig2_Image *GBREG; 797 FX_DWORD line1, line2; 798 LTP = 0; 799 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 800 GBREG->fill(0); 801 for(FX_DWORD h = 0; h < GBH; h++) { 802 if(TPGDON) { 803 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 804 LTP = LTP ^ SLTP; 805 } 806 if(LTP == 1) { 807 GBREG->copyLine(h, h - 1); 808 } else { 809 line1 = GBREG->getPixel(2, h - 1); 810 line1 |= GBREG->getPixel(1, h - 1) << 1; 811 line1 |= GBREG->getPixel(0, h - 1) << 2; 812 line2 = 0; 813 for(FX_DWORD w = 0; w < GBW; w++) { 814 if(USESKIP && SKIP->getPixel(w, h)) { 815 bVal = 0; 816 } else { 817 CONTEXT = line2; 818 CONTEXT |= line1 << 4; 819 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 820 } 821 if(bVal) { 822 GBREG->setPixel(w, h, bVal); 823 } 824 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x3f; 825 line2 = ((line2 << 1) | bVal) & 0x0f; 826 } 827 } 828 } 829 return GBREG; 830 } 831 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 832 { 833 FX_BOOL LTP, SLTP, bVal; 834 FX_DWORD CONTEXT; 835 CJBig2_Image *GBREG; 836 FX_DWORD line1; 837 FX_BYTE *pLine, cVal; 838 FX_INTPTR nStride, nStride2; 839 FX_INT32 nBits, k; 840 LTP = 0; 841 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 842 if (GBREG->m_pData == NULL) { 843 delete GBREG; 844 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 845 return NULL; 846 } 847 pLine = GBREG->m_pData; 848 nStride = GBREG->m_nStride; 849 nStride2 = nStride << 1; 850 for(FX_DWORD h = 0; h < GBH; h++) { 851 if(TPGDON) { 852 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 853 LTP = LTP ^ SLTP; 854 } 855 if(LTP == 1) { 856 GBREG->copyLine(h, h - 1); 857 } else { 858 line1 = (h > 0) ? pLine[-nStride] : 0; 859 CONTEXT = (line1 >> 1) & 0x03f0; 860 for(FX_DWORD w = 0; w < GBW; w += 8) { 861 if(w + 8 < GBW) { 862 nBits = 8; 863 if(h > 0) { 864 line1 = (line1 << 8) | (pLine[-nStride + (w >> 3) + 1]); 865 } 866 } else { 867 nBits = GBW - w; 868 if(h > 0) { 869 line1 <<= 8; 870 } 871 } 872 cVal = 0; 873 for(k = 0; k < nBits; k++) { 874 if(USESKIP && SKIP->getPixel(w, h)) { 875 bVal = 0; 876 } else { 877 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 878 } 879 cVal |= bVal << (7 - k); 880 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 881 | ((line1 >> (8 - k)) & 0x0010); 882 } 883 pLine[w >> 3] = cVal; 884 } 885 } 886 pLine += nStride; 887 } 888 return GBREG; 889 } 890 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 891 { 892 FX_BOOL LTP, SLTP, bVal; 893 FX_DWORD CONTEXT; 894 CJBig2_Image *GBREG; 895 FX_DWORD line1; 896 FX_BYTE *pLine, *pLine1, cVal; 897 FX_INT32 nStride, k; 898 FX_INT32 nLineBytes, nBitsLeft, cc; 899 LTP = 0; 900 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 901 if (GBREG->m_pData == NULL) { 902 delete GBREG; 903 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 904 return NULL; 905 } 906 pLine = GBREG->m_pData; 907 nStride = GBREG->m_nStride; 908 nLineBytes = ((GBW + 7) >> 3) - 1; 909 nBitsLeft = GBW - (nLineBytes << 3); 910 for(FX_DWORD h = 0; h < GBH; h++) { 911 if(TPGDON) { 912 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 913 LTP = LTP ^ SLTP; 914 } 915 if(LTP == 1) { 916 GBREG->copyLine(h, h - 1); 917 } else { 918 if(h > 0) { 919 pLine1 = pLine - nStride; 920 line1 = *pLine1++; 921 CONTEXT = (line1 >> 1) & 0x03f0; 922 for(cc = 0; cc < nLineBytes; cc++) { 923 line1 = (line1 << 8) | (*pLine1++); 924 cVal = 0; 925 for(k = 7; k >= 0; k--) { 926 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 927 cVal |= bVal << k; 928 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 929 | ((line1 >> (k + 1)) & 0x0010); 930 } 931 pLine[cc] = cVal; 932 } 933 line1 <<= 8; 934 cVal = 0; 935 for(k = 0; k < nBitsLeft; k++) { 936 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 937 cVal |= bVal << (7 - k); 938 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 939 | ((line1 >> (8 - k)) & 0x0010); 940 } 941 pLine[nLineBytes] = cVal; 942 } else { 943 CONTEXT = 0; 944 for(cc = 0; cc < nLineBytes; cc++) { 945 cVal = 0; 946 for(k = 7; k >= 0; k--) { 947 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 948 cVal |= bVal << k; 949 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; 950 } 951 pLine[cc] = cVal; 952 } 953 cVal = 0; 954 for(k = 0; k < nBitsLeft; k++) { 955 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 956 cVal |= bVal << (7 - k); 957 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; 958 } 959 pLine[nLineBytes] = cVal; 960 } 961 } 962 pLine += nStride; 963 } 964 return GBREG; 965 } 966 CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 967 { 968 FX_BOOL LTP, SLTP, bVal; 969 FX_DWORD CONTEXT; 970 CJBig2_Image *GBREG; 971 FX_DWORD line1, line2; 972 LTP = 0; 973 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 974 GBREG->fill(0); 975 for(FX_DWORD h = 0; h < GBH; h++) { 976 if(TPGDON) { 977 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 978 LTP = LTP ^ SLTP; 979 } 980 if(LTP == 1) { 981 GBREG->copyLine(h, h - 1); 982 } else { 983 line1 = GBREG->getPixel(1, h - 1); 984 line1 |= GBREG->getPixel(0, h - 1) << 1; 985 line2 = 0; 986 for(FX_DWORD w = 0; w < GBW; w++) { 987 if(USESKIP && SKIP->getPixel(w, h)) { 988 bVal = 0; 989 } else { 990 CONTEXT = line2; 991 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 992 CONTEXT |= line1 << 5; 993 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 994 } 995 if(bVal) { 996 GBREG->setPixel(w, h, bVal); 997 } 998 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x1f; 999 line2 = ((line2 << 1) | bVal) & 0x0f; 1000 } 1001 } 1002 } 1003 return GBREG; 1004 } 1005 CJBig2_Image *CJBig2_GRDProc::decode_Arith_V2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 1006 { 1007 FX_BOOL LTP, SLTP, bVal; 1008 FX_DWORD CONTEXT; 1009 CJBig2_Image *GBREG; 1010 FX_DWORD line1, line2, line3; 1011 LTP = 0; 1012 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 1013 GBREG->fill(0); 1014 for(FX_DWORD h = 0; h < GBH; h++) { 1015 if(TPGDON) { 1016 switch(GBTEMPLATE) { 1017 case 0: 1018 CONTEXT = 0x9b25; 1019 break; 1020 case 1: 1021 CONTEXT = 0x0795; 1022 break; 1023 case 2: 1024 CONTEXT = 0x00e5; 1025 break; 1026 case 3: 1027 CONTEXT = 0x0195; 1028 break; 1029 } 1030 SLTP = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1031 LTP = LTP ^ SLTP; 1032 } 1033 if(LTP == 1) { 1034 GBREG->copyLine(h, h - 1); 1035 } else { 1036 switch(GBTEMPLATE) { 1037 case 0: { 1038 line1 = GBREG->getPixel(1, h - 2); 1039 line1 |= GBREG->getPixel(0, h - 2) << 1; 1040 line2 = GBREG->getPixel(2, h - 1); 1041 line2 |= GBREG->getPixel(1, h - 1) << 1; 1042 line2 |= GBREG->getPixel(0, h - 1) << 2; 1043 line3 = 0; 1044 for(FX_DWORD w = 0; w < GBW; w++) { 1045 if(USESKIP && SKIP->getPixel(w, h)) { 1046 bVal = 0; 1047 } else { 1048 CONTEXT = line3; 1049 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1050 CONTEXT |= line2 << 5; 1051 CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; 1052 CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; 1053 CONTEXT |= line1 << 12; 1054 CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; 1055 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1056 } 1057 if(bVal) { 1058 GBREG->setPixel(w, h, bVal); 1059 } 1060 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; 1061 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 1062 line3 = ((line3 << 1) | bVal) & 0x0f; 1063 } 1064 } 1065 break; 1066 case 1: { 1067 line1 = GBREG->getPixel(2, h - 2); 1068 line1 |= GBREG->getPixel(1, h - 2) << 1; 1069 line1 |= GBREG->getPixel(0, h - 2) << 2; 1070 line2 = GBREG->getPixel(2, h - 1); 1071 line2 |= GBREG->getPixel(1, h - 1) << 1; 1072 line2 |= GBREG->getPixel(0, h - 1) << 2; 1073 line3 = 0; 1074 for(FX_DWORD w = 0; w < GBW; w++) { 1075 if(USESKIP && SKIP->getPixel(w, h)) { 1076 bVal = 0; 1077 } else { 1078 CONTEXT = line3; 1079 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; 1080 CONTEXT |= line2 << 4; 1081 CONTEXT |= line1 << 9; 1082 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1083 } 1084 if(bVal) { 1085 GBREG->setPixel(w, h, bVal); 1086 } 1087 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; 1088 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; 1089 line3 = ((line3 << 1) | bVal) & 0x07; 1090 } 1091 } 1092 break; 1093 case 2: { 1094 line1 = GBREG->getPixel(1, h - 2); 1095 line1 |= GBREG->getPixel(0, h - 2) << 1; 1096 line2 = GBREG->getPixel(1, h - 1); 1097 line2 |= GBREG->getPixel(0, h - 1) << 1; 1098 line3 = 0; 1099 for(FX_DWORD w = 0; w < GBW; w++) { 1100 if(USESKIP && SKIP->getPixel(w, h)) { 1101 bVal = 0; 1102 } else { 1103 CONTEXT = line3; 1104 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; 1105 CONTEXT |= line2 << 3; 1106 CONTEXT |= line1 << 7; 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 + 2, h - 1)) & 0x0f; 1114 line3 = ((line3 << 1) | bVal) & 0x03; 1115 } 1116 } 1117 break; 1118 case 3: { 1119 line1 = GBREG->getPixel(1, h - 1); 1120 line1 |= GBREG->getPixel(0, h - 1) << 1; 1121 line2 = 0; 1122 for(FX_DWORD w = 0; w < GBW; w++) { 1123 if(USESKIP && SKIP->getPixel(w, h)) { 1124 bVal = 0; 1125 } else { 1126 CONTEXT = line2; 1127 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1128 CONTEXT |= line1 << 5; 1129 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1130 } 1131 if(bVal) { 1132 GBREG->setPixel(w, h, bVal); 1133 } 1134 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x1f; 1135 line2 = ((line2 << 1) | bVal) & 0x0f; 1136 } 1137 } 1138 break; 1139 } 1140 } 1141 } 1142 return GBREG; 1143 } 1144 CJBig2_Image *CJBig2_GRDProc::decode_Arith_V1(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) 1145 { 1146 FX_BOOL LTP, SLTP, bVal; 1147 FX_DWORD CONTEXT = 0; 1148 CJBig2_Image *GBREG; 1149 LTP = 0; 1150 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 1151 GBREG->fill(0); 1152 for(FX_DWORD h = 0; h < GBH; h++) { 1153 if(TPGDON) { 1154 switch(GBTEMPLATE) { 1155 case 0: 1156 CONTEXT = 0x9b25; 1157 break; 1158 case 1: 1159 CONTEXT = 0x0795; 1160 break; 1161 case 2: 1162 CONTEXT = 0x00e5; 1163 break; 1164 case 3: 1165 CONTEXT = 0x0195; 1166 break; 1167 } 1168 SLTP = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1169 LTP = LTP ^ SLTP; 1170 } 1171 if(LTP == 1) { 1172 for(FX_DWORD w = 0; w < GBW; w++) { 1173 GBREG->setPixel(w, h, GBREG->getPixel(w, h - 1)); 1174 } 1175 } else { 1176 for(FX_DWORD w = 0; w < GBW; w++) { 1177 if(USESKIP && SKIP->getPixel(w, h)) { 1178 GBREG->setPixel(w, h, 0); 1179 } else { 1180 CONTEXT = 0; 1181 switch(GBTEMPLATE) { 1182 case 0: 1183 CONTEXT |= GBREG->getPixel(w - 1, h); 1184 CONTEXT |= GBREG->getPixel(w - 2, h) << 1; 1185 CONTEXT |= GBREG->getPixel(w - 3, h) << 2; 1186 CONTEXT |= GBREG->getPixel(w - 4, h) << 3; 1187 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1188 CONTEXT |= GBREG->getPixel(w + 2, h - 1) << 5; 1189 CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 6; 1190 CONTEXT |= GBREG->getPixel(w, h - 1) << 7; 1191 CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 8; 1192 CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 9; 1193 CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; 1194 CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; 1195 CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 12; 1196 CONTEXT |= GBREG->getPixel(w, h - 2) << 13; 1197 CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 14; 1198 CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; 1199 break; 1200 case 1: 1201 CONTEXT |= GBREG->getPixel(w - 1, h); 1202 CONTEXT |= GBREG->getPixel(w - 2, h) << 1; 1203 CONTEXT |= GBREG->getPixel(w - 3, h) << 2; 1204 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; 1205 CONTEXT |= GBREG->getPixel(w + 2, h - 1) << 4; 1206 CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 5; 1207 CONTEXT |= GBREG->getPixel(w, h - 1) << 6; 1208 CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 7; 1209 CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 8; 1210 CONTEXT |= GBREG->getPixel(w + 2, h - 2) << 9; 1211 CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 10; 1212 CONTEXT |= GBREG->getPixel(w, h - 2) << 11; 1213 CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 12; 1214 break; 1215 case 2: 1216 CONTEXT |= GBREG->getPixel(w - 1, h); 1217 CONTEXT |= GBREG->getPixel(w - 2, h) << 1; 1218 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; 1219 CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 3; 1220 CONTEXT |= GBREG->getPixel(w, h - 1) << 4; 1221 CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 5; 1222 CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 6; 1223 CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 7; 1224 CONTEXT |= GBREG->getPixel(w, h - 2) << 8; 1225 CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 9; 1226 break; 1227 case 3: 1228 CONTEXT |= GBREG->getPixel(w - 1, h); 1229 CONTEXT |= GBREG->getPixel(w - 2, h) << 1; 1230 CONTEXT |= GBREG->getPixel(w - 3, h) << 2; 1231 CONTEXT |= GBREG->getPixel(w - 4, h) << 3; 1232 CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; 1233 CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 5; 1234 CONTEXT |= GBREG->getPixel(w, h - 1) << 6; 1235 CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 7; 1236 CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 8; 1237 CONTEXT |= GBREG->getPixel(w - 3, h - 1) << 9; 1238 break; 1239 } 1240 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 1241 GBREG->setPixel(w, h, bVal); 1242 } 1243 } 1244 } 1245 } 1246 return GBREG; 1247 } 1248 CJBig2_Image *CJBig2_GRDProc::decode_MMR(CJBig2_BitStream *pStream) 1249 { 1250 int bitpos, i; 1251 CJBig2_Image *pImage; 1252 JBIG2_ALLOC(pImage, CJBig2_Image(GBW, GBH)); 1253 if (pImage->m_pData == NULL) { 1254 delete pImage; 1255 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 1256 return NULL; 1257 } 1258 bitpos = (int)pStream->getBitPos(); 1259 _FaxG4Decode(m_pModule, pStream->getBuf(), pStream->getLength(), &bitpos, pImage->m_pData, GBW, GBH, pImage->m_nStride); 1260 pStream->setBitPos(bitpos); 1261 for(i = 0; (FX_DWORD)i < pImage->m_nStride * GBH; i++) { 1262 pImage->m_pData[i] = ~pImage->m_pData[i]; 1263 } 1264 return pImage; 1265 } 1266 CJBig2_Image *CJBig2_GRRDProc::decode(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1267 { 1268 if (GRW == 0 || GRH == 0) { 1269 CJBig2_Image* pImage; 1270 JBIG2_ALLOC(pImage, CJBig2_Image(GRW, GRH)); 1271 return pImage; 1272 } 1273 if(GRTEMPLATE == 0) { 1274 if((GRAT[0] == (signed char) - 1) && (GRAT[1] == (signed char) - 1) 1275 && (GRAT[2] == (signed char) - 1) && (GRAT[3] == (signed char) - 1) 1276 && (GRREFERENCEDX == 0) && (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { 1277 return decode_Template0_opt(pArithDecoder, grContext); 1278 } else { 1279 return decode_Template0_unopt(pArithDecoder, grContext); 1280 } 1281 } else { 1282 if((GRREFERENCEDX == 0) && (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { 1283 return decode_Template1_opt(pArithDecoder, grContext); 1284 } else { 1285 return decode_Template1_unopt(pArithDecoder, grContext); 1286 } 1287 } 1288 } 1289 CJBig2_Image *CJBig2_GRRDProc::decode_Template0_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1290 { 1291 FX_BOOL LTP, SLTP, bVal; 1292 FX_DWORD CONTEXT; 1293 CJBig2_Image *GRREG; 1294 FX_DWORD line1, line2, line3, line4, line5; 1295 LTP = 0; 1296 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1297 GRREG->fill(0); 1298 for(FX_DWORD h = 0; h < GRH; h++) { 1299 if(TPGRON) { 1300 SLTP = pArithDecoder->DECODE(&grContext[0x0010]); 1301 LTP = LTP ^ SLTP; 1302 } 1303 if(LTP == 0) { 1304 line1 = GRREG->getPixel(1, h - 1); 1305 line1 |= GRREG->getPixel(0, h - 1) << 1; 1306 line2 = 0; 1307 line3 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY - 1); 1308 line3 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1) << 1; 1309 line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); 1310 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; 1311 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; 1312 line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1313 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1314 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; 1315 for(FX_DWORD w = 0; w < GRW; w++) { 1316 CONTEXT = line5; 1317 CONTEXT |= line4 << 3; 1318 CONTEXT |= line3 << 6; 1319 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; 1320 CONTEXT |= line2 << 9; 1321 CONTEXT |= line1 << 10; 1322 CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; 1323 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1324 GRREG->setPixel(w, h, bVal); 1325 line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x03; 1326 line2 = ((line2 << 1) | bVal) & 0x01; 1327 line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY - 1)) & 0x03; 1328 line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; 1329 line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x07; 1330 } 1331 } else { 1332 line1 = GRREG->getPixel(1, h - 1); 1333 line1 |= GRREG->getPixel(0, h - 1) << 1; 1334 line2 = 0; 1335 line3 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY - 1); 1336 line3 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1) << 1; 1337 line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); 1338 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; 1339 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; 1340 line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1341 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1342 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; 1343 for(FX_DWORD w = 0; w < GRW; w++) { 1344 bVal = GRREFERENCE->getPixel(w, h); 1345 if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) 1346 && (bVal == GRREFERENCE->getPixel(w, h - 1)) 1347 && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) 1348 && (bVal == GRREFERENCE->getPixel(w - 1, h)) 1349 && (bVal == GRREFERENCE->getPixel(w + 1, h)) 1350 && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) 1351 && (bVal == GRREFERENCE->getPixel(w, h + 1)) 1352 && (bVal == GRREFERENCE->getPixel(w + 1, h + 1)))) { 1353 CONTEXT = line5; 1354 CONTEXT |= line4 << 3; 1355 CONTEXT |= line3 << 6; 1356 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; 1357 CONTEXT |= line2 << 9; 1358 CONTEXT |= line1 << 10; 1359 CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; 1360 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1361 } 1362 GRREG->setPixel(w, h, bVal); 1363 line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x03; 1364 line2 = ((line2 << 1) | bVal) & 0x01; 1365 line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY - 1)) & 0x03; 1366 line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; 1367 line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x07; 1368 } 1369 } 1370 } 1371 return GRREG; 1372 } 1373 CJBig2_Image *CJBig2_GRRDProc::decode_Template0_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1374 { 1375 FX_BOOL LTP, SLTP, bVal; 1376 FX_DWORD CONTEXT; 1377 CJBig2_Image *GRREG; 1378 FX_DWORD line1, line1_r, line2_r, line3_r; 1379 FX_BYTE *pLine, *pLineR, cVal; 1380 FX_INTPTR nStride, nStrideR, nOffset; 1381 FX_INT32 k, nBits; 1382 FX_INT32 GRWR, GRHR; 1383 FX_INT32 GRW, GRH; 1384 GRW = (FX_INT32)CJBig2_GRRDProc::GRW; 1385 GRH = (FX_INT32)CJBig2_GRRDProc::GRH; 1386 LTP = 0; 1387 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1388 if (GRREG->m_pData == NULL) { 1389 delete GRREG; 1390 m_pModule->JBig2_Error("Generic refinement region decoding procedure: Create Image Failed with width = %d, height = %d\n", GRW, GRH); 1391 return NULL; 1392 } 1393 pLine = GRREG->m_pData; 1394 pLineR = GRREFERENCE->m_pData; 1395 nStride = GRREG->m_nStride; 1396 nStrideR = GRREFERENCE->m_nStride; 1397 GRWR = (FX_INT32)GRREFERENCE->m_nWidth; 1398 GRHR = (FX_INT32)GRREFERENCE->m_nHeight; 1399 if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { 1400 GRREFERENCEDY = 0; 1401 } 1402 nOffset = -GRREFERENCEDY * nStrideR; 1403 for (FX_INT32 h = 0; h < GRH; h++) { 1404 if(TPGRON) { 1405 SLTP = pArithDecoder->DECODE(&grContext[0x0010]); 1406 LTP = LTP ^ SLTP; 1407 } 1408 line1 = (h > 0) ? pLine[-nStride] << 4 : 0; 1409 FX_INT32 reference_h = h - GRREFERENCEDY; 1410 FX_BOOL line1_r_ok = (reference_h > 0 && reference_h < GRHR + 1); 1411 FX_BOOL line2_r_ok = (reference_h > -1 && reference_h < GRHR); 1412 FX_BOOL line3_r_ok = (reference_h > -2 && reference_h < GRHR - 1); 1413 line1_r = line1_r_ok ? pLineR[nOffset - nStrideR] : 0; 1414 line2_r = line2_r_ok ? pLineR[nOffset] : 0; 1415 line3_r = line3_r_ok ? pLineR[nOffset + nStrideR] : 0; 1416 if(LTP == 0) { 1417 CONTEXT = (line1 & 0x1c00) | (line1_r & 0x01c0) 1418 | ((line2_r >> 3) & 0x0038) | ((line3_r >> 6) & 0x0007); 1419 for (FX_INT32 w = 0; w < GRW; w += 8) { 1420 nBits = GRW - w > 8 ? 8 : GRW - w; 1421 if (h > 0) 1422 line1 = (line1 << 8) | 1423 (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 4 : 0); 1424 if (h > GRHR + GRREFERENCEDY + 1) { 1425 line1_r = 0; 1426 line2_r = 0; 1427 line3_r = 0; 1428 } else { 1429 if(line1_r_ok) 1430 line1_r = (line1_r << 8) | 1431 (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); 1432 if(line2_r_ok) 1433 line2_r = (line2_r << 8) | 1434 (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); 1435 if(line3_r_ok) 1436 line3_r = (line3_r << 8) | 1437 (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); 1438 else { 1439 line3_r = 0; 1440 } 1441 } 1442 cVal = 0; 1443 for (k = 0; k < nBits; k++) { 1444 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1445 cVal |= bVal << (7 - k); 1446 CONTEXT = ((CONTEXT & 0x0cdb) << 1) | (bVal << 9) | 1447 ((line1 >> (7 - k)) & 0x0400) | 1448 ((line1_r >> (7 - k)) & 0x0040) | 1449 ((line2_r >> (10 - k)) & 0x0008) | 1450 ((line3_r >> (13 - k)) & 0x0001); 1451 } 1452 pLine[w >> 3] = cVal; 1453 } 1454 } else { 1455 CONTEXT = (line1 & 0x1c00) | (line1_r & 0x01c0) 1456 | ((line2_r >> 3) & 0x0038) | ((line3_r >> 6) & 0x0007); 1457 for (FX_INT32 w = 0; w < GRW; w += 8) { 1458 nBits = GRW - w > 8 ? 8 : GRW - w; 1459 if (h > 0) 1460 line1 = (line1 << 8) | 1461 (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 4 : 0); 1462 if(line1_r_ok) 1463 line1_r = (line1_r << 8) | 1464 (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); 1465 if(line2_r_ok) 1466 line2_r = (line2_r << 8) | 1467 (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); 1468 if(line3_r_ok) 1469 line3_r = (line3_r << 8) | 1470 (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); 1471 else { 1472 line3_r = 0; 1473 } 1474 cVal = 0; 1475 for (k = 0; k < nBits; k++) { 1476 bVal = GRREFERENCE->getPixel(w + k, h); 1477 if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w + k - 1, h - 1)) 1478 && (bVal == GRREFERENCE->getPixel(w + k, h - 1)) 1479 && (bVal == GRREFERENCE->getPixel(w + k + 1, h - 1)) 1480 && (bVal == GRREFERENCE->getPixel(w + k - 1, h)) 1481 && (bVal == GRREFERENCE->getPixel(w + k + 1, h)) 1482 && (bVal == GRREFERENCE->getPixel(w + k - 1, h + 1)) 1483 && (bVal == GRREFERENCE->getPixel(w + k, h + 1)) 1484 && (bVal == GRREFERENCE->getPixel(w + k + 1, h + 1)))) { 1485 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1486 } 1487 cVal |= bVal << (7 - k); 1488 CONTEXT = ((CONTEXT & 0x0cdb) << 1) | (bVal << 9) | 1489 ((line1 >> (7 - k)) & 0x0400) | 1490 ((line1_r >> (7 - k)) & 0x0040) | 1491 ((line2_r >> (10 - k)) & 0x0008) | 1492 ((line3_r >> (13 - k)) & 0x0001); 1493 } 1494 pLine[w >> 3] = cVal; 1495 } 1496 } 1497 pLine += nStride; 1498 if (h < GRHR + GRREFERENCEDY) { 1499 pLineR += nStrideR; 1500 } 1501 } 1502 return GRREG; 1503 } 1504 CJBig2_Image *CJBig2_GRRDProc::decode_Template1_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1505 { 1506 FX_BOOL LTP, SLTP, bVal; 1507 FX_DWORD CONTEXT; 1508 CJBig2_Image *GRREG; 1509 FX_DWORD line1, line2, line3, line4, line5; 1510 LTP = 0; 1511 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1512 GRREG->fill(0); 1513 for(FX_DWORD h = 0; h < GRH; h++) { 1514 if(TPGRON) { 1515 SLTP = pArithDecoder->DECODE(&grContext[0x0008]); 1516 LTP = LTP ^ SLTP; 1517 } 1518 if(LTP == 0) { 1519 line1 = GRREG->getPixel(1, h - 1); 1520 line1 |= GRREG->getPixel(0, h - 1) << 1; 1521 line1 |= GRREG->getPixel(-1, h - 1) << 2; 1522 line2 = 0; 1523 line3 = GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1); 1524 line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); 1525 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; 1526 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; 1527 line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1528 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1529 for(FX_DWORD w = 0; w < GRW; w++) { 1530 CONTEXT = line5; 1531 CONTEXT |= line4 << 2; 1532 CONTEXT |= line3 << 5; 1533 CONTEXT |= line2 << 6; 1534 CONTEXT |= line1 << 7; 1535 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1536 GRREG->setPixel(w, h, bVal); 1537 line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x07; 1538 line2 = ((line2 << 1) | bVal) & 0x01; 1539 line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1)) & 0x01; 1540 line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; 1541 line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x03; 1542 } 1543 } else { 1544 line1 = GRREG->getPixel(1, h - 1); 1545 line1 |= GRREG->getPixel(0, h - 1) << 1; 1546 line1 |= GRREG->getPixel(-1, h - 1) << 2; 1547 line2 = 0; 1548 line3 = GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1); 1549 line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); 1550 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; 1551 line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; 1552 line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1553 line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1554 for(FX_DWORD w = 0; w < GRW; w++) { 1555 bVal = GRREFERENCE->getPixel(w, h); 1556 if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) 1557 && (bVal == GRREFERENCE->getPixel(w, h - 1)) 1558 && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) 1559 && (bVal == GRREFERENCE->getPixel(w - 1, h)) 1560 && (bVal == GRREFERENCE->getPixel(w + 1, h)) 1561 && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) 1562 && (bVal == GRREFERENCE->getPixel(w, h + 1)) 1563 && (bVal == GRREFERENCE->getPixel(w + 1, h + 1)))) { 1564 CONTEXT = line5; 1565 CONTEXT |= line4 << 2; 1566 CONTEXT |= line3 << 5; 1567 CONTEXT |= line2 << 6; 1568 CONTEXT |= line1 << 7; 1569 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1570 } 1571 GRREG->setPixel(w, h, bVal); 1572 line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x07; 1573 line2 = ((line2 << 1) | bVal) & 0x01; 1574 line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1)) & 0x01; 1575 line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; 1576 line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x03; 1577 } 1578 } 1579 } 1580 return GRREG; 1581 } 1582 CJBig2_Image *CJBig2_GRRDProc::decode_Template1_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1583 { 1584 FX_BOOL LTP, SLTP, bVal; 1585 FX_DWORD CONTEXT; 1586 CJBig2_Image *GRREG; 1587 FX_DWORD line1, line1_r, line2_r, line3_r; 1588 FX_BYTE *pLine, *pLineR, cVal; 1589 FX_INTPTR nStride, nStrideR, nOffset; 1590 FX_INT32 k, nBits; 1591 FX_INT32 GRWR, GRHR; 1592 FX_INT32 GRW, GRH; 1593 GRW = (FX_INT32)CJBig2_GRRDProc::GRW; 1594 GRH = (FX_INT32)CJBig2_GRRDProc::GRH; 1595 LTP = 0; 1596 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1597 if (GRREG->m_pData == NULL) { 1598 delete GRREG; 1599 m_pModule->JBig2_Error("Generic refinement region decoding procedure: Create Image Failed with width = %d, height = %d\n", GRW, GRH); 1600 return NULL; 1601 } 1602 pLine = GRREG->m_pData; 1603 pLineR = GRREFERENCE->m_pData; 1604 nStride = GRREG->m_nStride; 1605 nStrideR = GRREFERENCE->m_nStride; 1606 GRWR = (FX_INT32)GRREFERENCE->m_nWidth; 1607 GRHR = (FX_INT32)GRREFERENCE->m_nHeight; 1608 if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { 1609 GRREFERENCEDY = 0; 1610 } 1611 nOffset = -GRREFERENCEDY * nStrideR; 1612 for (FX_INT32 h = 0; h < GRH; h++) { 1613 if(TPGRON) { 1614 SLTP = pArithDecoder->DECODE(&grContext[0x0008]); 1615 LTP = LTP ^ SLTP; 1616 } 1617 line1 = (h > 0) ? pLine[-nStride] << 1 : 0; 1618 FX_INT32 reference_h = h - GRREFERENCEDY; 1619 FX_BOOL line1_r_ok = (reference_h > 0 && reference_h < GRHR + 1); 1620 FX_BOOL line2_r_ok = (reference_h > -1 && reference_h < GRHR); 1621 FX_BOOL line3_r_ok = (reference_h > -2 && reference_h < GRHR - 1); 1622 line1_r = line1_r_ok ? pLineR[nOffset - nStrideR] : 0; 1623 line2_r = line2_r_ok ? pLineR[nOffset] : 0; 1624 line3_r = line3_r_ok ? pLineR[nOffset + nStrideR] : 0; 1625 if(LTP == 0) { 1626 CONTEXT = (line1 & 0x0380) | ((line1_r >> 2) & 0x0020) 1627 | ((line2_r >> 4) & 0x001c) | ((line3_r >> 6) & 0x0003); 1628 for (FX_INT32 w = 0; w < GRW; w += 8) { 1629 nBits = GRW - w > 8 ? 8 : GRW - w; 1630 if (h > 0) 1631 line1 = (line1 << 8) | 1632 (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 1 : 0); 1633 if(line1_r_ok) 1634 line1_r = (line1_r << 8) | 1635 (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); 1636 if(line2_r_ok) 1637 line2_r = (line2_r << 8) | 1638 (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); 1639 if(line3_r_ok) 1640 line3_r = (line3_r << 8) | 1641 (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); 1642 else { 1643 line3_r = 0; 1644 } 1645 cVal = 0; 1646 for (k = 0; k < nBits; k++) { 1647 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1648 cVal |= bVal << (7 - k); 1649 CONTEXT = ((CONTEXT & 0x018d) << 1) | (bVal << 6) | 1650 ((line1 >> (7 - k)) & 0x0080) | 1651 ((line1_r >> (9 - k)) & 0x0020) | 1652 ((line2_r >> (11 - k)) & 0x0004) | 1653 ((line3_r >> (13 - k)) & 0x0001); 1654 } 1655 pLine[w >> 3] = cVal; 1656 } 1657 } else { 1658 CONTEXT = (line1 & 0x0380) | ((line1_r >> 2) & 0x0020) 1659 | ((line2_r >> 4) & 0x001c) | ((line3_r >> 6) & 0x0003); 1660 for (FX_INT32 w = 0; w < GRW; w += 8) { 1661 nBits = GRW - w > 8 ? 8 : GRW - w; 1662 if (h > 0) 1663 line1 = (line1 << 8) | 1664 (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 1 : 0); 1665 if(line1_r_ok) 1666 line1_r = (line1_r << 8) | 1667 (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); 1668 if(line2_r_ok) 1669 line2_r = (line2_r << 8) | 1670 (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); 1671 if(line3_r_ok) 1672 line3_r = (line3_r << 8) | 1673 (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); 1674 else { 1675 line3_r = 0; 1676 } 1677 cVal = 0; 1678 for (k = 0; k < nBits; k++) { 1679 bVal = GRREFERENCE->getPixel(w + k, h); 1680 if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w + k - 1, h - 1)) 1681 && (bVal == GRREFERENCE->getPixel(w + k, h - 1)) 1682 && (bVal == GRREFERENCE->getPixel(w + k + 1, h - 1)) 1683 && (bVal == GRREFERENCE->getPixel(w + k - 1, h)) 1684 && (bVal == GRREFERENCE->getPixel(w + k + 1, h)) 1685 && (bVal == GRREFERENCE->getPixel(w + k - 1, h + 1)) 1686 && (bVal == GRREFERENCE->getPixel(w + k, h + 1)) 1687 && (bVal == GRREFERENCE->getPixel(w + k + 1, h + 1)))) { 1688 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1689 } 1690 cVal |= bVal << (7 - k); 1691 CONTEXT = ((CONTEXT & 0x018d) << 1) | (bVal << 6) | 1692 ((line1 >> (7 - k)) & 0x0080) | 1693 ((line1_r >> (9 - k)) & 0x0020) | 1694 ((line2_r >> (11 - k)) & 0x0004) | 1695 ((line3_r >> (13 - k)) & 0x0001); 1696 } 1697 pLine[w >> 3] = cVal; 1698 } 1699 } 1700 pLine += nStride; 1701 if (h < GRHR + GRREFERENCEDY) { 1702 pLineR += nStrideR; 1703 } 1704 } 1705 return GRREG; 1706 } 1707 CJBig2_Image *CJBig2_GRRDProc::decode_V1(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) 1708 { 1709 FX_BOOL LTP, SLTP, bVal; 1710 FX_BOOL TPGRPIX, TPGRVAL; 1711 FX_DWORD CONTEXT; 1712 CJBig2_Image *GRREG; 1713 LTP = 0; 1714 JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); 1715 GRREG->fill(0); 1716 for(FX_DWORD h = 0; h < GRH; h++) { 1717 if(TPGRON) { 1718 switch(GRTEMPLATE) { 1719 case 0: 1720 CONTEXT = 0x0010; 1721 break; 1722 case 1: 1723 CONTEXT = 0x0008; 1724 break; 1725 } 1726 SLTP = pArithDecoder->DECODE(&grContext[CONTEXT]); 1727 LTP = LTP ^ SLTP; 1728 } 1729 if(LTP == 0) { 1730 for(FX_DWORD w = 0; w < GRW; w++) { 1731 CONTEXT = 0; 1732 switch(GRTEMPLATE) { 1733 case 0: 1734 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1735 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1736 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; 1737 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 3; 1738 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 4; 1739 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 5; 1740 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1) << 6; 1741 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 7; 1742 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; 1743 CONTEXT |= GRREG->getPixel(w - 1, h) << 9; 1744 CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 10; 1745 CONTEXT |= GRREG->getPixel(w, h - 1) << 11; 1746 CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; 1747 break; 1748 case 1: 1749 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); 1750 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; 1751 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 2; 1752 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 3; 1753 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 4; 1754 CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 5; 1755 CONTEXT |= GRREG->getPixel(w - 1, h) << 6; 1756 CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 7; 1757 CONTEXT |= GRREG->getPixel(w, h - 1) << 8; 1758 CONTEXT |= GRREG->getPixel(w - 1, h - 1) << 9; 1759 break; 1760 } 1761 bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); 1762 GRREG->setPixel(w, h, bVal); 1763 } 1764 } else { 1765 for(FX_DWORD w = 0; w < GRW; w++) { 1766 bVal = GRREFERENCE->getPixel(w, h); 1767 if(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) 1768 && (bVal == GRREFERENCE->getPixel(w, h - 1)) 1769 && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) 1770 && (bVal == GRREFERENCE->getPixel(w - 1, h)) 1771 && (bVal == GRREFERENCE->getPixel(w + 1, h)) 1772 && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) 1773 && (bVal == GRREFERENCE->getPixel(w, h + 1)) 1774 && (bVal == GRREFERENCE->getPixel(w + 1, h + 1))) { 1775 TPGRPIX = 1; 1776 TPGRVAL = bVal; 1777 } else { 1778 TPGRPIX = 0; 1779 } 1780 if(TPGRPIX) { 1781 GRREG->setPixel(w, h, TPGRVAL); 1782 } else { 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 } 1817 } 1818 } 1819 return GRREG; 1820 } 1821 CJBig2_Image *CJBig2_TRDProc::decode_Huffman(CJBig2_BitStream *pStream, JBig2ArithCtx *grContext) 1822 { 1823 FX_INT32 STRIPT, FIRSTS; 1824 FX_DWORD NINSTANCES; 1825 FX_INT32 DT, DFS, CURS; 1826 FX_BYTE CURT; 1827 FX_INT32 SI, TI; 1828 FX_DWORD IDI; 1829 CJBig2_Image *IBI; 1830 FX_DWORD WI, HI; 1831 FX_INT32 IDS; 1832 FX_BOOL RI; 1833 FX_INT32 RDWI, RDHI, RDXI, RDYI; 1834 CJBig2_Image *IBOI; 1835 FX_DWORD WOI, HOI; 1836 CJBig2_Image *SBREG; 1837 FX_BOOL bFirst; 1838 FX_DWORD nTmp; 1839 FX_INT32 nVal, nBits; 1840 CJBig2_HuffmanDecoder *pHuffmanDecoder; 1841 CJBig2_GRRDProc *pGRRD; 1842 CJBig2_ArithDecoder *pArithDecoder; 1843 JBIG2_ALLOC(pHuffmanDecoder, CJBig2_HuffmanDecoder(pStream)); 1844 JBIG2_ALLOC(SBREG, CJBig2_Image(SBW, SBH)); 1845 SBREG->fill(SBDEFPIXEL); 1846 if(pHuffmanDecoder->decodeAValue(SBHUFFDT, &STRIPT) != 0) { 1847 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1848 goto failed; 1849 } 1850 STRIPT *= SBSTRIPS; 1851 STRIPT = -STRIPT; 1852 FIRSTS = 0; 1853 NINSTANCES = 0; 1854 while(NINSTANCES < SBNUMINSTANCES) { 1855 if(pHuffmanDecoder->decodeAValue(SBHUFFDT, &DT) != 0) { 1856 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1857 goto failed; 1858 } 1859 DT *= SBSTRIPS; 1860 STRIPT = STRIPT + DT; 1861 bFirst = TRUE; 1862 for(;;) { 1863 if(bFirst) { 1864 if(pHuffmanDecoder->decodeAValue(SBHUFFFS, &DFS) != 0) { 1865 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1866 goto failed; 1867 } 1868 FIRSTS = FIRSTS + DFS; 1869 CURS = FIRSTS; 1870 bFirst = FALSE; 1871 } else { 1872 nVal = pHuffmanDecoder->decodeAValue(SBHUFFDS, &IDS); 1873 if(nVal == JBIG2_OOB) { 1874 break; 1875 } else if(nVal != 0) { 1876 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1877 goto failed; 1878 } else { 1879 CURS = CURS + IDS + SBDSOFFSET; 1880 } 1881 } 1882 if(SBSTRIPS == 1) { 1883 CURT = 0; 1884 } else { 1885 nTmp = 1; 1886 while((FX_DWORD)(1 << nTmp) < SBSTRIPS) { 1887 nTmp ++; 1888 } 1889 if(pStream->readNBits(nTmp, &nVal) != 0) { 1890 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1891 goto failed; 1892 } 1893 CURT = nVal; 1894 } 1895 TI = STRIPT + CURT; 1896 nVal = 0; 1897 nBits = 0; 1898 for(;;) { 1899 if(pStream->read1Bit(&nTmp) != 0) { 1900 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1901 goto failed; 1902 } 1903 nVal = (nVal << 1) | nTmp; 1904 nBits ++; 1905 for(IDI = 0; IDI < SBNUMSYMS; IDI++) { 1906 if((nBits == SBSYMCODES[IDI].codelen) && (nVal == SBSYMCODES[IDI].code)) { 1907 break; 1908 } 1909 } 1910 if(IDI < SBNUMSYMS) { 1911 break; 1912 } 1913 } 1914 if(SBREFINE == 0) { 1915 RI = 0; 1916 } else { 1917 if(pStream->read1Bit(&RI) != 0) { 1918 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1919 goto failed; 1920 } 1921 } 1922 if(RI == 0) { 1923 IBI = SBSYMS[IDI]; 1924 } else { 1925 if((pHuffmanDecoder->decodeAValue(SBHUFFRDW, &RDWI) != 0) 1926 || (pHuffmanDecoder->decodeAValue(SBHUFFRDH, &RDHI) != 0) 1927 || (pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDXI) != 0) 1928 || (pHuffmanDecoder->decodeAValue(SBHUFFRDY, &RDYI) != 0) 1929 || (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE, &nVal) != 0)) { 1930 m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); 1931 goto failed; 1932 } 1933 pStream->alignByte(); 1934 nTmp = pStream->getOffset(); 1935 IBOI = SBSYMS[IDI]; 1936 if (!IBOI) { 1937 goto failed; 1938 } 1939 WOI = IBOI->m_nWidth; 1940 HOI = IBOI->m_nHeight; 1941 if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) { 1942 m_pModule->JBig2_Error("text region decoding procedure (huffman): Invalid RDWI or RDHI value."); 1943 goto failed; 1944 } 1945 JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); 1946 pGRRD->GRW = WOI + RDWI; 1947 pGRRD->GRH = HOI + RDHI; 1948 pGRRD->GRTEMPLATE = SBRTEMPLATE; 1949 pGRRD->GRREFERENCE = IBOI; 1950 pGRRD->GRREFERENCEDX = (RDWI >> 2) + RDXI; 1951 pGRRD->GRREFERENCEDY = (RDHI >> 2) + RDYI; 1952 pGRRD->TPGRON = 0; 1953 pGRRD->GRAT[0] = SBRAT[0]; 1954 pGRRD->GRAT[1] = SBRAT[1]; 1955 pGRRD->GRAT[2] = SBRAT[2]; 1956 pGRRD->GRAT[3] = SBRAT[3]; 1957 JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(pStream)); 1958 IBI = pGRRD->decode(pArithDecoder, grContext); 1959 if(IBI == NULL) { 1960 delete pGRRD; 1961 delete pArithDecoder; 1962 goto failed; 1963 } 1964 delete pArithDecoder; 1965 pStream->alignByte(); 1966 pStream->offset(2); 1967 if((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { 1968 delete IBI; 1969 delete pGRRD; 1970 m_pModule->JBig2_Error("text region decoding procedure (huffman):" 1971 "bytes processed by generic refinement region decoding procedure doesn't equal SBHUFFRSIZE."); 1972 goto failed; 1973 } 1974 delete pGRRD; 1975 } 1976 if (!IBI) { 1977 continue; 1978 } 1979 WI = IBI->m_nWidth; 1980 HI = IBI->m_nHeight; 1981 if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPRIGHT) 1982 || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { 1983 CURS = CURS + WI - 1; 1984 } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_BOTTOMLEFT) 1985 || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { 1986 CURS = CURS + HI - 1; 1987 } 1988 SI = CURS; 1989 if(TRANSPOSED == 0) { 1990 switch(REFCORNER) { 1991 case JBIG2_CORNER_TOPLEFT: 1992 SBREG->composeFrom(SI, TI, IBI, SBCOMBOP); 1993 break; 1994 case JBIG2_CORNER_TOPRIGHT: 1995 SBREG->composeFrom(SI - WI + 1, TI, IBI, SBCOMBOP); 1996 break; 1997 case JBIG2_CORNER_BOTTOMLEFT: 1998 SBREG->composeFrom(SI, TI - HI + 1, IBI, SBCOMBOP); 1999 break; 2000 case JBIG2_CORNER_BOTTOMRIGHT: 2001 SBREG->composeFrom(SI - WI + 1, TI - HI + 1, IBI, SBCOMBOP); 2002 break; 2003 } 2004 } else { 2005 switch(REFCORNER) { 2006 case JBIG2_CORNER_TOPLEFT: 2007 SBREG->composeFrom(TI, SI, IBI, SBCOMBOP); 2008 break; 2009 case JBIG2_CORNER_TOPRIGHT: 2010 SBREG->composeFrom(TI - WI + 1, SI, IBI, SBCOMBOP); 2011 break; 2012 case JBIG2_CORNER_BOTTOMLEFT: 2013 SBREG->composeFrom(TI, SI - HI + 1, IBI, SBCOMBOP); 2014 break; 2015 case JBIG2_CORNER_BOTTOMRIGHT: 2016 SBREG->composeFrom(TI - WI + 1, SI - HI + 1, IBI, SBCOMBOP); 2017 break; 2018 } 2019 } 2020 if(RI != 0) { 2021 delete IBI; 2022 } 2023 if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) 2024 || (REFCORNER == JBIG2_CORNER_BOTTOMLEFT))) { 2025 CURS = CURS + WI - 1; 2026 } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) 2027 || (REFCORNER == JBIG2_CORNER_TOPRIGHT))) { 2028 CURS = CURS + HI - 1; 2029 } 2030 NINSTANCES = NINSTANCES + 1; 2031 } 2032 } 2033 delete pHuffmanDecoder; 2034 return SBREG; 2035 failed: 2036 delete pHuffmanDecoder; 2037 delete SBREG; 2038 return NULL; 2039 } 2040 CJBig2_Image *CJBig2_TRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext, 2041 JBig2IntDecoderState *pIDS) 2042 { 2043 FX_INT32 STRIPT, FIRSTS; 2044 FX_DWORD NINSTANCES; 2045 FX_INT32 DT, DFS, CURS; 2046 FX_INT32 CURT; 2047 FX_INT32 SI, TI; 2048 FX_DWORD IDI; 2049 CJBig2_Image *IBI; 2050 FX_DWORD WI, HI; 2051 FX_INT32 IDS; 2052 FX_BOOL RI; 2053 FX_INT32 RDWI, RDHI, RDXI, RDYI; 2054 CJBig2_Image *IBOI; 2055 FX_DWORD WOI, HOI; 2056 CJBig2_Image *SBREG; 2057 FX_BOOL bFirst; 2058 FX_INT32 nRet, nVal; 2059 FX_INT32 bRetained; 2060 CJBig2_ArithIntDecoder *IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH, *IARDX, *IARDY; 2061 CJBig2_ArithIaidDecoder *IAID; 2062 CJBig2_GRRDProc *pGRRD; 2063 if(pIDS) { 2064 IADT = pIDS->IADT; 2065 IAFS = pIDS->IAFS; 2066 IADS = pIDS->IADS; 2067 IAIT = pIDS->IAIT; 2068 IARI = pIDS->IARI; 2069 IARDW = pIDS->IARDW; 2070 IARDH = pIDS->IARDH; 2071 IARDX = pIDS->IARDX; 2072 IARDY = pIDS->IARDY; 2073 IAID = pIDS->IAID; 2074 bRetained = TRUE; 2075 } else { 2076 JBIG2_ALLOC(IADT, CJBig2_ArithIntDecoder()); 2077 JBIG2_ALLOC(IAFS, CJBig2_ArithIntDecoder()); 2078 JBIG2_ALLOC(IADS, CJBig2_ArithIntDecoder()); 2079 JBIG2_ALLOC(IAIT, CJBig2_ArithIntDecoder()); 2080 JBIG2_ALLOC(IARI, CJBig2_ArithIntDecoder()); 2081 JBIG2_ALLOC(IARDW, CJBig2_ArithIntDecoder()); 2082 JBIG2_ALLOC(IARDH, CJBig2_ArithIntDecoder()); 2083 JBIG2_ALLOC(IARDX, CJBig2_ArithIntDecoder()); 2084 JBIG2_ALLOC(IARDY, CJBig2_ArithIntDecoder()); 2085 JBIG2_ALLOC(IAID , CJBig2_ArithIaidDecoder(SBSYMCODELEN)); 2086 bRetained = FALSE; 2087 } 2088 JBIG2_ALLOC(SBREG, CJBig2_Image(SBW, SBH)); 2089 SBREG->fill(SBDEFPIXEL); 2090 if(IADT->decode(pArithDecoder, &STRIPT) == -1) { 2091 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2092 goto failed; 2093 } 2094 STRIPT *= SBSTRIPS; 2095 STRIPT = -STRIPT; 2096 FIRSTS = 0; 2097 NINSTANCES = 0; 2098 while(NINSTANCES < SBNUMINSTANCES) { 2099 if(IADT->decode(pArithDecoder, &DT) == -1) { 2100 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2101 goto failed; 2102 } 2103 DT *= SBSTRIPS; 2104 STRIPT = STRIPT + DT; 2105 bFirst = TRUE; 2106 for(;;) { 2107 if(bFirst) { 2108 if(IAFS->decode(pArithDecoder, &DFS) == -1) { 2109 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2110 goto failed; 2111 } 2112 FIRSTS = FIRSTS + DFS; 2113 CURS = FIRSTS; 2114 bFirst = FALSE; 2115 } else { 2116 nRet = IADS->decode(pArithDecoder, &IDS); 2117 if(nRet == JBIG2_OOB) { 2118 break; 2119 } else if(nRet != 0) { 2120 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2121 goto failed; 2122 } else { 2123 CURS = CURS + IDS + SBDSOFFSET; 2124 } 2125 } 2126 if (NINSTANCES >= SBNUMINSTANCES) { 2127 break; 2128 } 2129 if(SBSTRIPS == 1) { 2130 CURT = 0; 2131 } else { 2132 if(IAIT->decode(pArithDecoder, &nVal) == -1) { 2133 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2134 goto failed; 2135 } 2136 CURT = nVal; 2137 } 2138 TI = STRIPT + CURT; 2139 if(IAID->decode(pArithDecoder, &nVal) == -1) { 2140 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2141 goto failed; 2142 } 2143 IDI = nVal; 2144 if(IDI >= SBNUMSYMS) { 2145 m_pModule->JBig2_Error("text region decoding procedure (arith): symbol id out of range.(%d/%d)", 2146 IDI, SBNUMSYMS); 2147 goto failed; 2148 } 2149 if(SBREFINE == 0) { 2150 RI = 0; 2151 } else { 2152 if(IARI->decode(pArithDecoder, &RI) == -1) { 2153 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2154 goto failed; 2155 } 2156 } 2157 if (!SBSYMS[IDI]) { 2158 goto failed; 2159 } 2160 if(RI == 0) { 2161 IBI = SBSYMS[IDI]; 2162 } else { 2163 if((IARDW->decode(pArithDecoder, &RDWI) == -1) 2164 || (IARDH->decode(pArithDecoder, &RDHI) == -1) 2165 || (IARDX->decode(pArithDecoder, &RDXI) == -1) 2166 || (IARDY->decode(pArithDecoder, &RDYI) == -1)) { 2167 m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); 2168 goto failed; 2169 } 2170 IBOI = SBSYMS[IDI]; 2171 WOI = IBOI->m_nWidth; 2172 HOI = IBOI->m_nHeight; 2173 if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) { 2174 m_pModule->JBig2_Error("text region decoding procedure (arith): Invalid RDWI or RDHI value."); 2175 goto failed; 2176 } 2177 JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); 2178 pGRRD->GRW = WOI + RDWI; 2179 pGRRD->GRH = HOI + RDHI; 2180 pGRRD->GRTEMPLATE = SBRTEMPLATE; 2181 pGRRD->GRREFERENCE = IBOI; 2182 pGRRD->GRREFERENCEDX = (RDWI >> 1) + RDXI; 2183 pGRRD->GRREFERENCEDY = (RDHI >> 1) + RDYI; 2184 pGRRD->TPGRON = 0; 2185 pGRRD->GRAT[0] = SBRAT[0]; 2186 pGRRD->GRAT[1] = SBRAT[1]; 2187 pGRRD->GRAT[2] = SBRAT[2]; 2188 pGRRD->GRAT[3] = SBRAT[3]; 2189 IBI = pGRRD->decode(pArithDecoder, grContext); 2190 if(IBI == NULL) { 2191 delete pGRRD; 2192 goto failed; 2193 } 2194 delete pGRRD; 2195 } 2196 WI = IBI->m_nWidth; 2197 HI = IBI->m_nHeight; 2198 if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPRIGHT) 2199 || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { 2200 CURS = CURS + WI - 1; 2201 } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_BOTTOMLEFT) 2202 || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { 2203 CURS = CURS + HI - 1; 2204 } 2205 SI = CURS; 2206 if(TRANSPOSED == 0) { 2207 switch(REFCORNER) { 2208 case JBIG2_CORNER_TOPLEFT: 2209 SBREG->composeFrom(SI, TI, IBI, SBCOMBOP); 2210 break; 2211 case JBIG2_CORNER_TOPRIGHT: 2212 SBREG->composeFrom(SI - WI + 1, TI, IBI, SBCOMBOP); 2213 break; 2214 case JBIG2_CORNER_BOTTOMLEFT: 2215 SBREG->composeFrom(SI, TI - HI + 1, IBI, SBCOMBOP); 2216 break; 2217 case JBIG2_CORNER_BOTTOMRIGHT: 2218 SBREG->composeFrom(SI - WI + 1, TI - HI + 1, IBI, SBCOMBOP); 2219 break; 2220 } 2221 } else { 2222 switch(REFCORNER) { 2223 case JBIG2_CORNER_TOPLEFT: 2224 SBREG->composeFrom(TI, SI, IBI, SBCOMBOP); 2225 break; 2226 case JBIG2_CORNER_TOPRIGHT: 2227 SBREG->composeFrom(TI - WI + 1, SI, IBI, SBCOMBOP); 2228 break; 2229 case JBIG2_CORNER_BOTTOMLEFT: 2230 SBREG->composeFrom(TI, SI - HI + 1, IBI, SBCOMBOP); 2231 break; 2232 case JBIG2_CORNER_BOTTOMRIGHT: 2233 SBREG->composeFrom(TI - WI + 1, SI - HI + 1, IBI, SBCOMBOP); 2234 break; 2235 } 2236 } 2237 if(RI != 0) { 2238 delete IBI; 2239 } 2240 if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) 2241 || (REFCORNER == JBIG2_CORNER_BOTTOMLEFT))) { 2242 CURS = CURS + WI - 1; 2243 } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) 2244 || (REFCORNER == JBIG2_CORNER_TOPRIGHT))) { 2245 CURS = CURS + HI - 1; 2246 } 2247 NINSTANCES = NINSTANCES + 1; 2248 } 2249 } 2250 if(bRetained == FALSE) { 2251 delete IADT; 2252 delete IAFS; 2253 delete IADS; 2254 delete IAIT; 2255 delete IARI; 2256 delete IARDW; 2257 delete IARDH; 2258 delete IARDX; 2259 delete IARDY; 2260 delete IAID; 2261 } 2262 return SBREG; 2263 failed: 2264 if(bRetained == FALSE) { 2265 delete IADT; 2266 delete IAFS; 2267 delete IADS; 2268 delete IAIT; 2269 delete IARI; 2270 delete IARDW; 2271 delete IARDH; 2272 delete IARDX; 2273 delete IARDY; 2274 delete IAID; 2275 } 2276 delete SBREG; 2277 return NULL; 2278 } 2279 CJBig2_SymbolDict *CJBig2_SDDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, 2280 JBig2ArithCtx *gbContext, JBig2ArithCtx *grContext) 2281 { 2282 CJBig2_Image **SDNEWSYMS; 2283 FX_DWORD HCHEIGHT, NSYMSDECODED; 2284 FX_INT32 HCDH; 2285 FX_DWORD SYMWIDTH, TOTWIDTH, HCFIRSTSYM; 2286 FX_INT32 DW; 2287 CJBig2_Image *BS; 2288 FX_DWORD I, J, REFAGGNINST; 2289 FX_BOOL *EXFLAGS; 2290 FX_DWORD EXINDEX; 2291 FX_BOOL CUREXFLAG; 2292 FX_DWORD EXRUNLENGTH; 2293 FX_INT32 nVal; 2294 FX_DWORD nTmp; 2295 FX_BOOL SBHUFF; 2296 FX_DWORD SBNUMSYMS; 2297 FX_BYTE SBSYMCODELEN; 2298 FX_DWORD IDI; 2299 FX_INT32 RDXI, RDYI; 2300 CJBig2_Image **SBSYMS; 2301 CJBig2_HuffmanTable *SBHUFFFS, *SBHUFFDS, *SBHUFFDT, *SBHUFFRDW, *SBHUFFRDH, *SBHUFFRDX, *SBHUFFRDY, 2302 *SBHUFFRSIZE; 2303 CJBig2_GRRDProc *pGRRD; 2304 CJBig2_GRDProc *pGRD; 2305 CJBig2_ArithIntDecoder *IADH, *IADW, *IAAI, *IARDX, *IARDY, *IAEX, 2306 *IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH; 2307 CJBig2_ArithIaidDecoder *IAID; 2308 CJBig2_SymbolDict *pDict; 2309 JBIG2_ALLOC(IADH, CJBig2_ArithIntDecoder()); 2310 JBIG2_ALLOC(IADW, CJBig2_ArithIntDecoder()); 2311 JBIG2_ALLOC(IAAI, CJBig2_ArithIntDecoder()); 2312 JBIG2_ALLOC(IARDX, CJBig2_ArithIntDecoder()); 2313 JBIG2_ALLOC(IARDY, CJBig2_ArithIntDecoder()); 2314 JBIG2_ALLOC(IAEX, CJBig2_ArithIntDecoder()); 2315 JBIG2_ALLOC(IADT, CJBig2_ArithIntDecoder()); 2316 JBIG2_ALLOC(IAFS, CJBig2_ArithIntDecoder()); 2317 JBIG2_ALLOC(IADS, CJBig2_ArithIntDecoder()); 2318 JBIG2_ALLOC(IAIT, CJBig2_ArithIntDecoder()); 2319 JBIG2_ALLOC(IARI, CJBig2_ArithIntDecoder()); 2320 JBIG2_ALLOC(IARDW, CJBig2_ArithIntDecoder()); 2321 JBIG2_ALLOC(IARDH, CJBig2_ArithIntDecoder()); 2322 nTmp = 0; 2323 while((FX_DWORD)(1 << nTmp) < (SDNUMINSYMS + SDNUMNEWSYMS)) { 2324 nTmp ++; 2325 } 2326 JBIG2_ALLOC(IAID, CJBig2_ArithIaidDecoder((FX_BYTE)nTmp)); 2327 SDNEWSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(CJBig2_Image*)); 2328 FXSYS_memset32(SDNEWSYMS, 0 , SDNUMNEWSYMS * sizeof(CJBig2_Image*)); 2329 HCHEIGHT = 0; 2330 NSYMSDECODED = 0; 2331 while(NSYMSDECODED < SDNUMNEWSYMS) { 2332 BS = NULL; 2333 if(IADH->decode(pArithDecoder, &HCDH) == -1) { 2334 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2335 goto failed; 2336 } 2337 HCHEIGHT = HCHEIGHT + HCDH; 2338 if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { 2339 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): invalid HCHEIGHT value."); 2340 goto failed; 2341 } 2342 SYMWIDTH = 0; 2343 TOTWIDTH = 0; 2344 HCFIRSTSYM = NSYMSDECODED; 2345 for(;;) { 2346 nVal = IADW->decode(pArithDecoder, &DW); 2347 if(nVal == JBIG2_OOB) { 2348 break; 2349 } else if(nVal != 0) { 2350 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2351 goto failed; 2352 } else { 2353 if (NSYMSDECODED >= SDNUMNEWSYMS) { 2354 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): NSYMSDECODED >= SDNUMNEWSYMS."); 2355 goto failed; 2356 } 2357 SYMWIDTH = SYMWIDTH + DW; 2358 if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { 2359 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): invalid SYMWIDTH value."); 2360 goto failed; 2361 } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { 2362 TOTWIDTH = TOTWIDTH + SYMWIDTH; 2363 SDNEWSYMS[NSYMSDECODED] = NULL; 2364 NSYMSDECODED = NSYMSDECODED + 1; 2365 continue; 2366 } 2367 TOTWIDTH = TOTWIDTH + SYMWIDTH; 2368 } 2369 if(SDREFAGG == 0) { 2370 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 2371 pGRD->MMR = 0; 2372 pGRD->GBW = SYMWIDTH; 2373 pGRD->GBH = HCHEIGHT; 2374 pGRD->GBTEMPLATE = SDTEMPLATE; 2375 pGRD->TPGDON = 0; 2376 pGRD->USESKIP = 0; 2377 pGRD->GBAT[0] = SDAT[0]; 2378 pGRD->GBAT[1] = SDAT[1]; 2379 pGRD->GBAT[2] = SDAT[2]; 2380 pGRD->GBAT[3] = SDAT[3]; 2381 pGRD->GBAT[4] = SDAT[4]; 2382 pGRD->GBAT[5] = SDAT[5]; 2383 pGRD->GBAT[6] = SDAT[6]; 2384 pGRD->GBAT[7] = SDAT[7]; 2385 BS = pGRD->decode_Arith(pArithDecoder, gbContext); 2386 if(BS == NULL) { 2387 delete pGRD; 2388 goto failed; 2389 } 2390 delete pGRD; 2391 } else { 2392 if(IAAI->decode(pArithDecoder, (int*)&REFAGGNINST) == -1) { 2393 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2394 goto failed; 2395 } 2396 if(REFAGGNINST > 1) { 2397 CJBig2_TRDProc *pDecoder; 2398 JBIG2_ALLOC(pDecoder, CJBig2_TRDProc()); 2399 pDecoder->SBHUFF = SDHUFF; 2400 pDecoder->SBREFINE = 1; 2401 pDecoder->SBW = SYMWIDTH; 2402 pDecoder->SBH = HCHEIGHT; 2403 pDecoder->SBNUMINSTANCES = REFAGGNINST; 2404 pDecoder->SBSTRIPS = 1; 2405 pDecoder->SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; 2406 SBNUMSYMS = pDecoder->SBNUMSYMS; 2407 nTmp = 0; 2408 while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { 2409 nTmp ++; 2410 } 2411 SBSYMCODELEN = (FX_BYTE)nTmp; 2412 pDecoder->SBSYMCODELEN = SBSYMCODELEN; 2413 SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); 2414 JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); 2415 JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); 2416 pDecoder->SBSYMS = SBSYMS; 2417 pDecoder->SBDEFPIXEL = 0; 2418 pDecoder->SBCOMBOP = JBIG2_COMPOSE_OR; 2419 pDecoder->TRANSPOSED = 0; 2420 pDecoder->REFCORNER = JBIG2_CORNER_TOPLEFT; 2421 pDecoder->SBDSOFFSET = 0; 2422 JBIG2_ALLOC(SBHUFFFS, CJBig2_HuffmanTable(HuffmanTable_B6, 2423 sizeof(HuffmanTable_B6) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B6)); 2424 JBIG2_ALLOC(SBHUFFDS, CJBig2_HuffmanTable(HuffmanTable_B8, 2425 sizeof(HuffmanTable_B8) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B8)); 2426 JBIG2_ALLOC(SBHUFFDT, CJBig2_HuffmanTable(HuffmanTable_B11, 2427 sizeof(HuffmanTable_B11) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B11)); 2428 JBIG2_ALLOC(SBHUFFRDW, CJBig2_HuffmanTable(HuffmanTable_B15, 2429 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2430 JBIG2_ALLOC(SBHUFFRDH, CJBig2_HuffmanTable(HuffmanTable_B15, 2431 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2432 JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, 2433 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2434 JBIG2_ALLOC(SBHUFFRDY, CJBig2_HuffmanTable(HuffmanTable_B15, 2435 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2436 JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, 2437 sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); 2438 pDecoder->SBHUFFFS = SBHUFFFS; 2439 pDecoder->SBHUFFDS = SBHUFFDS; 2440 pDecoder->SBHUFFDT = SBHUFFDT; 2441 pDecoder->SBHUFFRDW = SBHUFFRDW; 2442 pDecoder->SBHUFFRDH = SBHUFFRDH; 2443 pDecoder->SBHUFFRDX = SBHUFFRDX; 2444 pDecoder->SBHUFFRDY = SBHUFFRDY; 2445 pDecoder->SBHUFFRSIZE = SBHUFFRSIZE; 2446 pDecoder->SBRTEMPLATE = SDRTEMPLATE; 2447 pDecoder->SBRAT[0] = SDRAT[0]; 2448 pDecoder->SBRAT[1] = SDRAT[1]; 2449 pDecoder->SBRAT[2] = SDRAT[2]; 2450 pDecoder->SBRAT[3] = SDRAT[3]; 2451 JBig2IntDecoderState ids; 2452 ids.IADT = IADT; 2453 ids.IAFS = IAFS; 2454 ids.IADS = IADS; 2455 ids.IAIT = IAIT; 2456 ids.IARI = IARI; 2457 ids.IARDW = IARDW; 2458 ids.IARDH = IARDH; 2459 ids.IARDX = IARDX; 2460 ids.IARDY = IARDY; 2461 ids.IAID = IAID; 2462 BS = pDecoder->decode_Arith(pArithDecoder, grContext, &ids); 2463 if(BS == NULL) { 2464 m_pModule->JBig2_Free(SBSYMS); 2465 delete SBHUFFFS; 2466 delete SBHUFFDS; 2467 delete SBHUFFDT; 2468 delete SBHUFFRDW; 2469 delete SBHUFFRDH; 2470 delete SBHUFFRDX; 2471 delete SBHUFFRDY; 2472 delete SBHUFFRSIZE; 2473 delete pDecoder; 2474 goto failed; 2475 } 2476 m_pModule->JBig2_Free(SBSYMS); 2477 delete SBHUFFFS; 2478 delete SBHUFFDS; 2479 delete SBHUFFDT; 2480 delete SBHUFFRDW; 2481 delete SBHUFFRDH; 2482 delete SBHUFFRDX; 2483 delete SBHUFFRDY; 2484 delete SBHUFFRSIZE; 2485 delete pDecoder; 2486 } else if(REFAGGNINST == 1) { 2487 SBHUFF = SDHUFF; 2488 SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; 2489 if(IAID->decode(pArithDecoder, (int*)&IDI) == -1) { 2490 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2491 goto failed; 2492 } 2493 if((IARDX->decode(pArithDecoder, &RDXI) == -1) 2494 || (IARDY->decode(pArithDecoder, &RDYI) == -1)) { 2495 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2496 goto failed; 2497 } 2498 if (IDI >= SBNUMSYMS) { 2499 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith):" 2500 " refinement references unknown symbol %d", IDI); 2501 goto failed; 2502 } 2503 SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); 2504 JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); 2505 JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); 2506 if (!SBSYMS[IDI]) { 2507 m_pModule->JBig2_Free(SBSYMS); 2508 goto failed; 2509 } 2510 JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); 2511 pGRRD->GRW = SYMWIDTH; 2512 pGRRD->GRH = HCHEIGHT; 2513 pGRRD->GRTEMPLATE = SDRTEMPLATE; 2514 pGRRD->GRREFERENCE = SBSYMS[IDI]; 2515 pGRRD->GRREFERENCEDX = RDXI; 2516 pGRRD->GRREFERENCEDY = RDYI; 2517 pGRRD->TPGRON = 0; 2518 pGRRD->GRAT[0] = SDRAT[0]; 2519 pGRRD->GRAT[1] = SDRAT[1]; 2520 pGRRD->GRAT[2] = SDRAT[2]; 2521 pGRRD->GRAT[3] = SDRAT[3]; 2522 BS = pGRRD->decode(pArithDecoder, grContext); 2523 if(BS == NULL) { 2524 m_pModule->JBig2_Free(SBSYMS); 2525 delete pGRRD; 2526 goto failed; 2527 } 2528 m_pModule->JBig2_Free(SBSYMS); 2529 delete pGRRD; 2530 } 2531 } 2532 SDNEWSYMS[NSYMSDECODED] = BS; 2533 BS = NULL; 2534 NSYMSDECODED = NSYMSDECODED + 1; 2535 } 2536 } 2537 EXINDEX = 0; 2538 CUREXFLAG = 0; 2539 EXFLAGS = (FX_BOOL*)m_pModule->JBig2_Malloc2(sizeof(FX_BOOL), (SDNUMINSYMS + SDNUMNEWSYMS)); 2540 while(EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { 2541 if(IAEX->decode(pArithDecoder, (int*)&EXRUNLENGTH) == -1) { 2542 m_pModule->JBig2_Free(EXFLAGS); 2543 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); 2544 goto failed; 2545 } 2546 if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { 2547 m_pModule->JBig2_Free(EXFLAGS); 2548 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): Invalid EXRUNLENGTH value."); 2549 goto failed; 2550 } 2551 if(EXRUNLENGTH != 0) { 2552 for(I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { 2553 EXFLAGS[I] = CUREXFLAG; 2554 } 2555 } 2556 EXINDEX = EXINDEX + EXRUNLENGTH; 2557 CUREXFLAG = !CUREXFLAG; 2558 } 2559 JBIG2_ALLOC(pDict, CJBig2_SymbolDict()); 2560 pDict->SDNUMEXSYMS = SDNUMEXSYMS; 2561 pDict->SDEXSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), SDNUMEXSYMS); 2562 I = J = 0; 2563 for(I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { 2564 if(EXFLAGS[I] && J < SDNUMEXSYMS) { 2565 if(I < SDNUMINSYMS) { 2566 JBIG2_ALLOC(pDict->SDEXSYMS[J], CJBig2_Image(*SDINSYMS[I])); 2567 } else { 2568 pDict->SDEXSYMS[J] = SDNEWSYMS[I - SDNUMINSYMS]; 2569 } 2570 J = J + 1; 2571 } else if (!EXFLAGS[I] && I >= SDNUMINSYMS) { 2572 delete SDNEWSYMS[I - SDNUMINSYMS]; 2573 } 2574 } 2575 if (J < SDNUMEXSYMS) { 2576 pDict->SDNUMEXSYMS = J; 2577 } 2578 m_pModule->JBig2_Free(EXFLAGS); 2579 m_pModule->JBig2_Free(SDNEWSYMS); 2580 delete IADH; 2581 delete IADW; 2582 delete IAAI; 2583 delete IARDX; 2584 delete IARDY; 2585 delete IAEX; 2586 delete IAID; 2587 delete IADT; 2588 delete IAFS; 2589 delete IADS; 2590 delete IAIT; 2591 delete IARI; 2592 delete IARDW; 2593 delete IARDH; 2594 return pDict; 2595 failed: 2596 for(I = 0; I < NSYMSDECODED; I++) { 2597 if (SDNEWSYMS[I]) { 2598 delete SDNEWSYMS[I]; 2599 SDNEWSYMS[I] = NULL; 2600 } 2601 } 2602 m_pModule->JBig2_Free(SDNEWSYMS); 2603 delete IADH; 2604 delete IADW; 2605 delete IAAI; 2606 delete IARDX; 2607 delete IARDY; 2608 delete IAEX; 2609 delete IAID; 2610 delete IADT; 2611 delete IAFS; 2612 delete IADS; 2613 delete IAIT; 2614 delete IARI; 2615 delete IARDW; 2616 delete IARDH; 2617 return NULL; 2618 } 2619 CJBig2_SymbolDict *CJBig2_SDDProc::decode_Huffman(CJBig2_BitStream *pStream, 2620 JBig2ArithCtx *gbContext, JBig2ArithCtx *grContext, IFX_Pause* pPause) 2621 { 2622 CJBig2_Image **SDNEWSYMS; 2623 FX_DWORD *SDNEWSYMWIDTHS; 2624 FX_DWORD HCHEIGHT, NSYMSDECODED; 2625 FX_INT32 HCDH; 2626 FX_DWORD SYMWIDTH, TOTWIDTH, HCFIRSTSYM; 2627 FX_INT32 DW; 2628 CJBig2_Image *BS, *BHC; 2629 FX_DWORD I, J, REFAGGNINST; 2630 FX_BOOL *EXFLAGS; 2631 FX_DWORD EXINDEX; 2632 FX_BOOL CUREXFLAG; 2633 FX_DWORD EXRUNLENGTH; 2634 FX_INT32 nVal, nBits; 2635 FX_DWORD nTmp; 2636 FX_BOOL SBHUFF; 2637 FX_DWORD SBNUMSYMS; 2638 FX_BYTE SBSYMCODELEN; 2639 JBig2HuffmanCode *SBSYMCODES; 2640 FX_DWORD IDI; 2641 FX_INT32 RDXI, RDYI; 2642 FX_DWORD BMSIZE; 2643 FX_DWORD stride; 2644 CJBig2_Image **SBSYMS; 2645 CJBig2_HuffmanTable *SBHUFFFS, *SBHUFFDS, *SBHUFFDT, *SBHUFFRDW, *SBHUFFRDH, *SBHUFFRDX, *SBHUFFRDY, 2646 *SBHUFFRSIZE, *pTable; 2647 CJBig2_HuffmanDecoder *pHuffmanDecoder; 2648 CJBig2_GRRDProc *pGRRD; 2649 CJBig2_ArithDecoder *pArithDecoder; 2650 CJBig2_GRDProc *pGRD; 2651 CJBig2_SymbolDict *pDict; 2652 JBIG2_ALLOC(pHuffmanDecoder, CJBig2_HuffmanDecoder(pStream)); 2653 SDNEWSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(CJBig2_Image*)); 2654 FXSYS_memset32(SDNEWSYMS, 0 , SDNUMNEWSYMS * sizeof(CJBig2_Image*)); 2655 SDNEWSYMWIDTHS = NULL; 2656 BHC = NULL; 2657 if(SDREFAGG == 0) { 2658 SDNEWSYMWIDTHS = (FX_DWORD *)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(FX_DWORD)); 2659 FXSYS_memset32(SDNEWSYMWIDTHS, 0 , SDNUMNEWSYMS * sizeof(FX_DWORD)); 2660 } 2661 HCHEIGHT = 0; 2662 NSYMSDECODED = 0; 2663 BS = NULL; 2664 while(NSYMSDECODED < SDNUMNEWSYMS) { 2665 if(pHuffmanDecoder->decodeAValue(SDHUFFDH, &HCDH) != 0) { 2666 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2667 goto failed; 2668 } 2669 HCHEIGHT = HCHEIGHT + HCDH; 2670 if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { 2671 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): invalid HCHEIGHT value."); 2672 goto failed; 2673 } 2674 SYMWIDTH = 0; 2675 TOTWIDTH = 0; 2676 HCFIRSTSYM = NSYMSDECODED; 2677 for(;;) { 2678 nVal = pHuffmanDecoder->decodeAValue(SDHUFFDW, &DW); 2679 if(nVal == JBIG2_OOB) { 2680 break; 2681 } else if(nVal != 0) { 2682 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2683 goto failed; 2684 } else { 2685 if (NSYMSDECODED >= SDNUMNEWSYMS) { 2686 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): NSYMSDECODED >= SDNUMNEWSYMS."); 2687 goto failed; 2688 } 2689 SYMWIDTH = SYMWIDTH + DW; 2690 if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { 2691 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): invalid SYMWIDTH value."); 2692 goto failed; 2693 } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { 2694 TOTWIDTH = TOTWIDTH + SYMWIDTH; 2695 SDNEWSYMS[NSYMSDECODED] = NULL; 2696 NSYMSDECODED = NSYMSDECODED + 1; 2697 continue; 2698 } 2699 TOTWIDTH = TOTWIDTH + SYMWIDTH; 2700 } 2701 if(SDREFAGG == 1) { 2702 if(pHuffmanDecoder->decodeAValue(SDHUFFAGGINST, (int*)&REFAGGNINST) != 0) { 2703 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2704 goto failed; 2705 } 2706 BS = NULL; 2707 if(REFAGGNINST > 1) { 2708 CJBig2_TRDProc *pDecoder; 2709 JBIG2_ALLOC(pDecoder, CJBig2_TRDProc()); 2710 pDecoder->SBHUFF = SDHUFF; 2711 pDecoder->SBREFINE = 1; 2712 pDecoder->SBW = SYMWIDTH; 2713 pDecoder->SBH = HCHEIGHT; 2714 pDecoder->SBNUMINSTANCES = REFAGGNINST; 2715 pDecoder->SBSTRIPS = 1; 2716 pDecoder->SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; 2717 SBNUMSYMS = pDecoder->SBNUMSYMS; 2718 SBSYMCODES = (JBig2HuffmanCode*)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(JBig2HuffmanCode)); 2719 nTmp = 1; 2720 while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { 2721 nTmp ++; 2722 } 2723 for(I = 0; I < SBNUMSYMS; I++) { 2724 SBSYMCODES[I].codelen = nTmp; 2725 SBSYMCODES[I].code = I; 2726 } 2727 pDecoder->SBSYMCODES = SBSYMCODES; 2728 SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); 2729 JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); 2730 JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); 2731 pDecoder->SBSYMS = SBSYMS; 2732 pDecoder->SBDEFPIXEL = 0; 2733 pDecoder->SBCOMBOP = JBIG2_COMPOSE_OR; 2734 pDecoder->TRANSPOSED = 0; 2735 pDecoder->REFCORNER = JBIG2_CORNER_TOPLEFT; 2736 pDecoder->SBDSOFFSET = 0; 2737 JBIG2_ALLOC(SBHUFFFS, CJBig2_HuffmanTable(HuffmanTable_B6, 2738 sizeof(HuffmanTable_B6) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B6)); 2739 JBIG2_ALLOC(SBHUFFDS, CJBig2_HuffmanTable(HuffmanTable_B8, 2740 sizeof(HuffmanTable_B8) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B8)); 2741 JBIG2_ALLOC(SBHUFFDT, CJBig2_HuffmanTable(HuffmanTable_B11, 2742 sizeof(HuffmanTable_B11) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B11)); 2743 JBIG2_ALLOC(SBHUFFRDW, CJBig2_HuffmanTable(HuffmanTable_B15, 2744 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2745 JBIG2_ALLOC(SBHUFFRDH, CJBig2_HuffmanTable(HuffmanTable_B15, 2746 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2747 JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, 2748 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2749 JBIG2_ALLOC(SBHUFFRDY, CJBig2_HuffmanTable(HuffmanTable_B15, 2750 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2751 JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, 2752 sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); 2753 pDecoder->SBHUFFFS = SBHUFFFS; 2754 pDecoder->SBHUFFDS = SBHUFFDS; 2755 pDecoder->SBHUFFDT = SBHUFFDT; 2756 pDecoder->SBHUFFRDW = SBHUFFRDW; 2757 pDecoder->SBHUFFRDH = SBHUFFRDH; 2758 pDecoder->SBHUFFRDX = SBHUFFRDX; 2759 pDecoder->SBHUFFRDY = SBHUFFRDY; 2760 pDecoder->SBHUFFRSIZE = SBHUFFRSIZE; 2761 pDecoder->SBRTEMPLATE = SDRTEMPLATE; 2762 pDecoder->SBRAT[0] = SDRAT[0]; 2763 pDecoder->SBRAT[1] = SDRAT[1]; 2764 pDecoder->SBRAT[2] = SDRAT[2]; 2765 pDecoder->SBRAT[3] = SDRAT[3]; 2766 BS = pDecoder->decode_Huffman(pStream, grContext); 2767 if(BS == NULL) { 2768 m_pModule->JBig2_Free(SBSYMCODES); 2769 m_pModule->JBig2_Free(SBSYMS); 2770 delete SBHUFFFS; 2771 delete SBHUFFDS; 2772 delete SBHUFFDT; 2773 delete SBHUFFRDW; 2774 delete SBHUFFRDH; 2775 delete SBHUFFRDX; 2776 delete SBHUFFRDY; 2777 delete SBHUFFRSIZE; 2778 delete pDecoder; 2779 goto failed; 2780 } 2781 m_pModule->JBig2_Free(SBSYMCODES); 2782 m_pModule->JBig2_Free(SBSYMS); 2783 delete SBHUFFFS; 2784 delete SBHUFFDS; 2785 delete SBHUFFDT; 2786 delete SBHUFFRDW; 2787 delete SBHUFFRDH; 2788 delete SBHUFFRDX; 2789 delete SBHUFFRDY; 2790 delete SBHUFFRSIZE; 2791 delete pDecoder; 2792 } else if(REFAGGNINST == 1) { 2793 SBHUFF = SDHUFF; 2794 SBNUMSYMS = SDNUMINSYMS + SDNUMNEWSYMS; 2795 nTmp = 1; 2796 while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { 2797 nTmp ++; 2798 } 2799 SBSYMCODELEN = (FX_BYTE)nTmp; 2800 SBSYMCODES = (JBig2HuffmanCode*)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(JBig2HuffmanCode)); 2801 for(I = 0; I < SBNUMSYMS; I++) { 2802 SBSYMCODES[I].codelen = SBSYMCODELEN; 2803 SBSYMCODES[I].code = I; 2804 } 2805 nVal = 0; 2806 nBits = 0; 2807 for(;;) { 2808 if(pStream->read1Bit(&nTmp) != 0) { 2809 m_pModule->JBig2_Free(SBSYMCODES); 2810 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2811 goto failed; 2812 } 2813 nVal = (nVal << 1) | nTmp; 2814 for(IDI = 0; IDI < SBNUMSYMS; IDI++) { 2815 if((nVal == SBSYMCODES[IDI].code) 2816 && (nBits == SBSYMCODES[IDI].codelen)) { 2817 break; 2818 } 2819 } 2820 if(IDI < SBNUMSYMS) { 2821 break; 2822 } 2823 } 2824 m_pModule->JBig2_Free(SBSYMCODES); 2825 JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, 2826 sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); 2827 JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, 2828 sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); 2829 if((pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDXI) != 0) 2830 || (pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDYI) != 0) 2831 || (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE, &nVal) != 0)) { 2832 delete SBHUFFRDX; 2833 delete SBHUFFRSIZE; 2834 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2835 goto failed; 2836 } 2837 delete SBHUFFRDX; 2838 delete SBHUFFRSIZE; 2839 pStream->alignByte(); 2840 nTmp = pStream->getOffset(); 2841 SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); 2842 JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); 2843 JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); 2844 JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); 2845 pGRRD->GRW = SYMWIDTH; 2846 pGRRD->GRH = HCHEIGHT; 2847 pGRRD->GRTEMPLATE = SDRTEMPLATE; 2848 pGRRD->GRREFERENCE = SBSYMS[IDI]; 2849 pGRRD->GRREFERENCEDX = RDXI; 2850 pGRRD->GRREFERENCEDY = RDYI; 2851 pGRRD->TPGRON = 0; 2852 pGRRD->GRAT[0] = SDRAT[0]; 2853 pGRRD->GRAT[1] = SDRAT[1]; 2854 pGRRD->GRAT[2] = SDRAT[2]; 2855 pGRRD->GRAT[3] = SDRAT[3]; 2856 JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(pStream)); 2857 BS = pGRRD->decode(pArithDecoder, grContext); 2858 if(BS == NULL) { 2859 m_pModule->JBig2_Free(SBSYMS); 2860 delete pGRRD; 2861 delete pArithDecoder; 2862 goto failed; 2863 } 2864 pStream->alignByte(); 2865 pStream->offset(2); 2866 if((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { 2867 delete BS; 2868 m_pModule->JBig2_Free(SBSYMS); 2869 delete pGRRD; 2870 delete pArithDecoder; 2871 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman):" 2872 "bytes processed by generic refinement region decoding procedure doesn't equal SBHUFFRSIZE."); 2873 goto failed; 2874 } 2875 m_pModule->JBig2_Free(SBSYMS); 2876 delete pGRRD; 2877 delete pArithDecoder; 2878 } 2879 SDNEWSYMS[NSYMSDECODED] = BS; 2880 } 2881 if(SDREFAGG == 0) { 2882 SDNEWSYMWIDTHS[NSYMSDECODED] = SYMWIDTH; 2883 } 2884 NSYMSDECODED = NSYMSDECODED + 1; 2885 } 2886 if(SDREFAGG == 0) { 2887 if(pHuffmanDecoder->decodeAValue(SDHUFFBMSIZE, (FX_INT32*)&BMSIZE) != 0) { 2888 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2889 goto failed; 2890 } 2891 pStream->alignByte(); 2892 if(BMSIZE == 0) { 2893 stride = (TOTWIDTH + 7) >> 3; 2894 if(pStream->getByteLeft() >= stride * HCHEIGHT) { 2895 JBIG2_ALLOC(BHC, CJBig2_Image(TOTWIDTH, HCHEIGHT)); 2896 for(I = 0; I < HCHEIGHT; I ++) { 2897 JBIG2_memcpy(BHC->m_pData + I * BHC->m_nStride, pStream->getPointer(), stride); 2898 pStream->offset(stride); 2899 } 2900 } else { 2901 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2902 goto failed; 2903 } 2904 } else { 2905 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 2906 pGRD->MMR = 1; 2907 pGRD->GBW = TOTWIDTH; 2908 pGRD->GBH = HCHEIGHT; 2909 FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHC, pStream); 2910 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 2911 pGRD->Continue_decode(pPause); 2912 } 2913 delete pGRD; 2914 pStream->alignByte(); 2915 } 2916 nTmp = 0; 2917 if (!BHC) { 2918 continue; 2919 } 2920 for(I = HCFIRSTSYM; I < NSYMSDECODED; I++) { 2921 SDNEWSYMS[I] = BHC->subImage(nTmp, 0, SDNEWSYMWIDTHS[I], HCHEIGHT); 2922 nTmp += SDNEWSYMWIDTHS[I]; 2923 } 2924 delete BHC; 2925 BHC = NULL; 2926 } 2927 } 2928 EXINDEX = 0; 2929 CUREXFLAG = 0; 2930 JBIG2_ALLOC(pTable, CJBig2_HuffmanTable(HuffmanTable_B1, 2931 sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); 2932 EXFLAGS = (FX_BOOL*)m_pModule->JBig2_Malloc2(sizeof(FX_BOOL), (SDNUMINSYMS + SDNUMNEWSYMS)); 2933 while(EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { 2934 if(pHuffmanDecoder->decodeAValue(pTable, (int*)&EXRUNLENGTH) != 0) { 2935 delete pTable; 2936 m_pModule->JBig2_Free(EXFLAGS); 2937 m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); 2938 goto failed; 2939 } 2940 if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { 2941 delete pTable; 2942 m_pModule->JBig2_Free(EXFLAGS); 2943 m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): Invalid EXRUNLENGTH value."); 2944 goto failed; 2945 } 2946 if(EXRUNLENGTH != 0) { 2947 for(I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { 2948 EXFLAGS[I] = CUREXFLAG; 2949 } 2950 } 2951 EXINDEX = EXINDEX + EXRUNLENGTH; 2952 CUREXFLAG = !CUREXFLAG; 2953 } 2954 delete pTable; 2955 JBIG2_ALLOC(pDict, CJBig2_SymbolDict()); 2956 pDict->SDNUMEXSYMS = SDNUMEXSYMS; 2957 pDict->SDEXSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), SDNUMEXSYMS); 2958 I = J = 0; 2959 for(I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { 2960 if(EXFLAGS[I] && J < SDNUMEXSYMS) { 2961 if(I < SDNUMINSYMS) { 2962 JBIG2_ALLOC(pDict->SDEXSYMS[J], CJBig2_Image(*SDINSYMS[I])); 2963 } else { 2964 pDict->SDEXSYMS[J] = SDNEWSYMS[I - SDNUMINSYMS]; 2965 } 2966 J = J + 1; 2967 } else if (!EXFLAGS[I] && I >= SDNUMINSYMS) { 2968 delete SDNEWSYMS[I - SDNUMINSYMS]; 2969 } 2970 } 2971 if (J < SDNUMEXSYMS) { 2972 pDict->SDNUMEXSYMS = J; 2973 } 2974 m_pModule->JBig2_Free(EXFLAGS); 2975 m_pModule->JBig2_Free(SDNEWSYMS); 2976 if(SDREFAGG == 0) { 2977 m_pModule->JBig2_Free(SDNEWSYMWIDTHS); 2978 } 2979 delete pHuffmanDecoder; 2980 return pDict; 2981 failed: 2982 for(I = 0; I < NSYMSDECODED; I++) { 2983 if (SDNEWSYMS[I]) { 2984 delete SDNEWSYMS[I]; 2985 } 2986 } 2987 m_pModule->JBig2_Free(SDNEWSYMS); 2988 if(SDREFAGG == 0) { 2989 m_pModule->JBig2_Free(SDNEWSYMWIDTHS); 2990 } 2991 delete pHuffmanDecoder; 2992 return NULL; 2993 } 2994 CJBig2_Image *CJBig2_HTRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, 2995 JBig2ArithCtx *gbContext, IFX_Pause* pPause) 2996 { 2997 FX_DWORD ng, mg; 2998 FX_INT32 x, y; 2999 CJBig2_Image *HSKIP; 3000 FX_DWORD HBPP; 3001 FX_DWORD *GI; 3002 CJBig2_Image *HTREG; 3003 CJBig2_GSIDProc *pGID; 3004 JBIG2_ALLOC(HTREG, CJBig2_Image(HBW, HBH)); 3005 HTREG->fill(HDEFPIXEL); 3006 HSKIP = NULL; 3007 if(HENABLESKIP == 1) { 3008 JBIG2_ALLOC(HSKIP, CJBig2_Image(HGW, HGH)); 3009 for(mg = 0; mg < HGH; mg++) { 3010 for(ng = 0; ng < HGW; ng++) { 3011 x = (HGX + mg * HRY + ng * HRX) >> 8; 3012 y = (HGY + mg * HRX - ng * HRY) >> 8; 3013 if((x + HPW <= 0) | (x >= (FX_INT32)HBW) 3014 | (y + HPH <= 0) | (y >= (FX_INT32)HPH)) { 3015 HSKIP->setPixel(ng, mg, 1); 3016 } else { 3017 HSKIP->setPixel(ng, mg, 0); 3018 } 3019 } 3020 } 3021 } 3022 HBPP = 1; 3023 while((FX_DWORD)(1 << HBPP) < HNUMPATS) { 3024 HBPP ++; 3025 } 3026 JBIG2_ALLOC(pGID, CJBig2_GSIDProc()); 3027 pGID->GSMMR = HMMR; 3028 pGID->GSW = HGW; 3029 pGID->GSH = HGH; 3030 pGID->GSBPP = (FX_BYTE)HBPP; 3031 pGID->GSUSESKIP = HENABLESKIP; 3032 pGID->GSKIP = HSKIP; 3033 pGID->GSTEMPLATE = HTEMPLATE; 3034 GI = pGID->decode_Arith(pArithDecoder, gbContext, pPause); 3035 if(GI == NULL) { 3036 goto failed; 3037 } 3038 for(mg = 0; mg < HGH; mg++) { 3039 for(ng = 0; ng < HGW; ng++) { 3040 x = (HGX + mg * HRY + ng * HRX) >> 8; 3041 y = (HGY + mg * HRX - ng * HRY) >> 8; 3042 FX_DWORD pat_index = GI[mg * HGW + ng]; 3043 if (pat_index >= HNUMPATS) { 3044 pat_index = HNUMPATS - 1; 3045 } 3046 HTREG->composeFrom(x, y, HPATS[pat_index], HCOMBOP); 3047 } 3048 } 3049 m_pModule->JBig2_Free(GI); 3050 if(HSKIP) { 3051 delete HSKIP; 3052 } 3053 delete pGID; 3054 return HTREG; 3055 failed: 3056 if(HSKIP) { 3057 delete HSKIP; 3058 } 3059 delete pGID; 3060 delete HTREG; 3061 return NULL; 3062 } 3063 CJBig2_Image *CJBig2_HTRDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) 3064 { 3065 FX_DWORD ng, mg; 3066 FX_INT32 x, y; 3067 FX_DWORD HBPP; 3068 FX_DWORD *GI; 3069 CJBig2_Image *HTREG; 3070 CJBig2_GSIDProc *pGID; 3071 JBIG2_ALLOC(HTREG, CJBig2_Image(HBW, HBH)); 3072 HTREG->fill(HDEFPIXEL); 3073 HBPP = 1; 3074 while((FX_DWORD)(1 << HBPP) < HNUMPATS) { 3075 HBPP ++; 3076 } 3077 JBIG2_ALLOC(pGID, CJBig2_GSIDProc()); 3078 pGID->GSMMR = HMMR; 3079 pGID->GSW = HGW; 3080 pGID->GSH = HGH; 3081 pGID->GSBPP = (FX_BYTE)HBPP; 3082 pGID->GSUSESKIP = 0; 3083 GI = pGID->decode_MMR(pStream, pPause); 3084 if(GI == NULL) { 3085 goto failed; 3086 } 3087 for(mg = 0; mg < HGH; mg++) { 3088 for(ng = 0; ng < HGW; ng++) { 3089 x = (HGX + mg * HRY + ng * HRX) >> 8; 3090 y = (HGY + mg * HRX - ng * HRY) >> 8; 3091 FX_DWORD pat_index = GI[mg * HGW + ng]; 3092 if (pat_index >= HNUMPATS) { 3093 pat_index = HNUMPATS - 1; 3094 } 3095 HTREG->composeFrom(x, y, HPATS[pat_index], HCOMBOP); 3096 } 3097 } 3098 m_pModule->JBig2_Free(GI); 3099 delete pGID; 3100 return HTREG; 3101 failed: 3102 delete pGID; 3103 delete HTREG; 3104 return NULL; 3105 } 3106 CJBig2_PatternDict *CJBig2_PDDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, 3107 JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3108 { 3109 FX_DWORD GRAY; 3110 CJBig2_Image *BHDC = NULL; 3111 CJBig2_PatternDict *pDict; 3112 CJBig2_GRDProc *pGRD; 3113 JBIG2_ALLOC(pDict, CJBig2_PatternDict()); 3114 pDict->NUMPATS = GRAYMAX + 1; 3115 pDict->HDPATS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), pDict->NUMPATS); 3116 JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*)*pDict->NUMPATS); 3117 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 3118 pGRD->MMR = HDMMR; 3119 pGRD->GBW = (GRAYMAX + 1) * HDPW; 3120 pGRD->GBH = HDPH; 3121 pGRD->GBTEMPLATE = HDTEMPLATE; 3122 pGRD->TPGDON = 0; 3123 pGRD->USESKIP = 0; 3124 pGRD->GBAT[0] = -(FX_INT32)HDPW; 3125 pGRD->GBAT[1] = 0; 3126 if(pGRD->GBTEMPLATE == 0) { 3127 pGRD->GBAT[2] = -3; 3128 pGRD->GBAT[3] = -1; 3129 pGRD->GBAT[4] = 2; 3130 pGRD->GBAT[5] = -2; 3131 pGRD->GBAT[6] = -2; 3132 pGRD->GBAT[7] = -2; 3133 } 3134 FXCODEC_STATUS status = pGRD->Start_decode_Arith(&BHDC, pArithDecoder, gbContext); 3135 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3136 pGRD->Continue_decode(pPause); 3137 } 3138 if(BHDC == NULL) { 3139 delete pGRD; 3140 goto failed; 3141 } 3142 delete pGRD; 3143 GRAY = 0; 3144 while(GRAY <= GRAYMAX) { 3145 pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); 3146 GRAY = GRAY + 1; 3147 } 3148 delete BHDC; 3149 return pDict; 3150 failed: 3151 delete pDict; 3152 return NULL; 3153 } 3154 3155 CJBig2_PatternDict *CJBig2_PDDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) 3156 { 3157 FX_DWORD GRAY; 3158 CJBig2_Image *BHDC = NULL; 3159 CJBig2_PatternDict *pDict; 3160 CJBig2_GRDProc *pGRD; 3161 JBIG2_ALLOC(pDict, CJBig2_PatternDict()); 3162 pDict->NUMPATS = GRAYMAX + 1; 3163 pDict->HDPATS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), pDict->NUMPATS); 3164 JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*)*pDict->NUMPATS); 3165 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 3166 pGRD->MMR = HDMMR; 3167 pGRD->GBW = (GRAYMAX + 1) * HDPW; 3168 pGRD->GBH = HDPH; 3169 FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHDC, pStream); 3170 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3171 pGRD->Continue_decode(pPause); 3172 } 3173 if(BHDC == NULL) { 3174 delete pGRD; 3175 goto failed; 3176 } 3177 delete pGRD; 3178 GRAY = 0; 3179 while(GRAY <= GRAYMAX) { 3180 pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); 3181 GRAY = GRAY + 1; 3182 } 3183 delete BHDC; 3184 return pDict; 3185 failed: 3186 delete pDict; 3187 return NULL; 3188 } 3189 FX_DWORD *CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, 3190 JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3191 { 3192 CJBig2_Image **GSPLANES; 3193 FX_INT32 J, K; 3194 FX_DWORD x, y; 3195 FX_DWORD *GSVALS; 3196 CJBig2_GRDProc *pGRD; 3197 GSPLANES = (CJBig2_Image **)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), GSBPP); 3198 if (!GSPLANES) { 3199 return NULL; 3200 } 3201 GSVALS = (FX_DWORD*)m_pModule->JBig2_Malloc3(sizeof(FX_DWORD), GSW, GSH); 3202 if (!GSVALS) { 3203 m_pModule->JBig2_Free(GSPLANES); 3204 return NULL; 3205 } 3206 JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*)*GSBPP); 3207 JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD)*GSW * GSH); 3208 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 3209 pGRD->MMR = GSMMR; 3210 pGRD->GBW = GSW; 3211 pGRD->GBH = GSH; 3212 pGRD->GBTEMPLATE = GSTEMPLATE; 3213 pGRD->TPGDON = 0; 3214 pGRD->USESKIP = GSUSESKIP; 3215 pGRD->SKIP = GSKIP; 3216 if(GSTEMPLATE <= 1) { 3217 pGRD->GBAT[0] = 3; 3218 } else { 3219 pGRD->GBAT[0] = 2; 3220 } 3221 pGRD->GBAT[1] = -1; 3222 if(pGRD->GBTEMPLATE == 0) { 3223 pGRD->GBAT[2] = -3; 3224 pGRD->GBAT[3] = -1; 3225 pGRD->GBAT[4] = 2; 3226 pGRD->GBAT[5] = -2; 3227 pGRD->GBAT[6] = -2; 3228 pGRD->GBAT[7] = -2; 3229 } 3230 FXCODEC_STATUS status = pGRD->Start_decode_Arith(&GSPLANES[GSBPP - 1], pArithDecoder, gbContext); 3231 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3232 pGRD->Continue_decode(pPause); 3233 } 3234 if(GSPLANES[GSBPP - 1] == NULL) { 3235 goto failed; 3236 } 3237 J = GSBPP - 2; 3238 while(J >= 0) { 3239 FXCODEC_STATUS status = pGRD->Start_decode_Arith(&GSPLANES[J], pArithDecoder, gbContext); 3240 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3241 pGRD->Continue_decode(pPause); 3242 } 3243 if(GSPLANES[J] == NULL) { 3244 for(K = GSBPP - 1; K > J; K--) { 3245 delete GSPLANES[K]; 3246 goto failed; 3247 } 3248 } 3249 GSPLANES[J]->composeFrom(0, 0, GSPLANES[J + 1], JBIG2_COMPOSE_XOR); 3250 J = J - 1; 3251 } 3252 for(y = 0; y < GSH; y++) { 3253 for(x = 0; x < GSW; x++) { 3254 for(J = 0; J < GSBPP; J++) { 3255 GSVALS[y * GSW + x] |= GSPLANES[J]->getPixel(x, y) << J; 3256 } 3257 } 3258 } 3259 for(J = 0; J < GSBPP; J++) { 3260 delete GSPLANES[J]; 3261 } 3262 m_pModule->JBig2_Free(GSPLANES); 3263 delete pGRD; 3264 return GSVALS; 3265 failed: 3266 m_pModule->JBig2_Free(GSPLANES); 3267 delete pGRD; 3268 m_pModule->JBig2_Free(GSVALS); 3269 return NULL; 3270 } 3271 FX_DWORD *CJBig2_GSIDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) 3272 { 3273 CJBig2_Image **GSPLANES; 3274 FX_INT32 J, K; 3275 FX_DWORD x, y; 3276 FX_DWORD *GSVALS; 3277 CJBig2_GRDProc *pGRD; 3278 GSPLANES = (CJBig2_Image **)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), GSBPP); 3279 if (!GSPLANES) { 3280 return NULL; 3281 } 3282 GSVALS = (FX_DWORD*)m_pModule->JBig2_Malloc3(sizeof(FX_DWORD), GSW, GSH); 3283 if (!GSVALS) { 3284 if (GSPLANES) { 3285 m_pModule->JBig2_Free(GSPLANES); 3286 } 3287 return NULL; 3288 } 3289 JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*)*GSBPP); 3290 JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD)*GSW * GSH); 3291 JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); 3292 pGRD->MMR = GSMMR; 3293 pGRD->GBW = GSW; 3294 pGRD->GBH = GSH; 3295 FXCODEC_STATUS status = pGRD->Start_decode_MMR(&GSPLANES[GSBPP - 1], pStream); 3296 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3297 pGRD->Continue_decode(pPause); 3298 } 3299 if(GSPLANES[GSBPP - 1] == NULL) { 3300 goto failed; 3301 } 3302 pStream->alignByte(); 3303 pStream->offset(3); 3304 J = GSBPP - 2; 3305 while(J >= 0) { 3306 FXCODEC_STATUS status = pGRD->Start_decode_MMR(&GSPLANES[J], pStream); 3307 while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3308 pGRD->Continue_decode(pPause); 3309 } 3310 if(GSPLANES[J] == NULL) { 3311 for(K = GSBPP - 1; K > J; K--) { 3312 delete GSPLANES[K]; 3313 goto failed; 3314 } 3315 } 3316 pStream->alignByte(); 3317 pStream->offset(3); 3318 GSPLANES[J]->composeFrom(0, 0, GSPLANES[J + 1], JBIG2_COMPOSE_XOR); 3319 J = J - 1; 3320 } 3321 for(y = 0; y < GSH; y++) { 3322 for(x = 0; x < GSW; x++) { 3323 for(J = 0; J < GSBPP; J++) { 3324 GSVALS[y * GSW + x] |= GSPLANES[J]->getPixel(x, y) << J; 3325 } 3326 } 3327 } 3328 for(J = 0; J < GSBPP; J++) { 3329 delete GSPLANES[J]; 3330 } 3331 m_pModule->JBig2_Free(GSPLANES); 3332 delete pGRD; 3333 return GSVALS; 3334 failed: 3335 m_pModule->JBig2_Free(GSPLANES); 3336 delete pGRD; 3337 m_pModule->JBig2_Free(GSVALS); 3338 return NULL; 3339 } 3340 FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3341 { 3342 if (GBW == 0 || GBH == 0) { 3343 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3344 return FXCODEC_STATUS_DECODE_FINISH; 3345 } 3346 m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; 3347 m_pPause = pPause; 3348 if(*pImage == NULL) { 3349 JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); 3350 } 3351 if ((*pImage)->m_pData == NULL) { 3352 delete *pImage; 3353 *pImage = NULL; 3354 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 3355 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3356 return FXCODEC_STATUS_ERROR; 3357 } 3358 m_DecodeType = 1; 3359 m_pImage = pImage; 3360 (*m_pImage)->fill(0); 3361 m_pArithDecoder = pArithDecoder; 3362 m_gbContext = gbContext; 3363 LTP = 0; 3364 m_pLine = NULL; 3365 m_loopIndex = 0; 3366 return decode_Arith(pPause); 3367 } 3368 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith(IFX_Pause* pPause) 3369 { 3370 int iline = m_loopIndex; 3371 CJBig2_Image* pImage = *m_pImage; 3372 if(GBTEMPLATE == 0) { 3373 if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1) 3374 && (GBAT[2] == (signed char) - 3) && (GBAT[3] == (signed char) - 1) 3375 && (GBAT[4] == 2) && (GBAT[5] == (signed char) - 2) 3376 && (GBAT[6] == (signed char) - 2) && (GBAT[7] == (signed char) - 2)) { 3377 m_ProssiveStatus = decode_Arith_Template0_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); 3378 } else { 3379 m_ProssiveStatus = decode_Arith_Template0_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); 3380 } 3381 } else if(GBTEMPLATE == 1) { 3382 if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1)) { 3383 m_ProssiveStatus = decode_Arith_Template1_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); 3384 } else { 3385 m_ProssiveStatus = decode_Arith_Template1_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); 3386 } 3387 } else if(GBTEMPLATE == 2) { 3388 if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { 3389 m_ProssiveStatus = decode_Arith_Template2_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); 3390 } else { 3391 m_ProssiveStatus = decode_Arith_Template2_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); 3392 } 3393 } else { 3394 if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { 3395 m_ProssiveStatus = decode_Arith_Template3_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); 3396 } else { 3397 m_ProssiveStatus = decode_Arith_Template3_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); 3398 } 3399 } 3400 m_ReplaceRect.left = 0; 3401 m_ReplaceRect.right = pImage->m_nWidth; 3402 m_ReplaceRect.top = iline; 3403 m_ReplaceRect.bottom = m_loopIndex; 3404 if(m_ProssiveStatus == FXCODEC_STATUS_DECODE_FINISH) { 3405 m_loopIndex = 0; 3406 } 3407 return m_ProssiveStatus; 3408 } 3409 FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith_V2(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3410 { 3411 if(GBW == 0 || GBH == 0) { 3412 * pImage = NULL; 3413 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3414 return FXCODEC_STATUS_DECODE_FINISH; 3415 } 3416 if(*pImage == NULL) { 3417 JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); 3418 } 3419 if ((*pImage)->m_pData == NULL) { 3420 delete *pImage; 3421 *pImage = NULL; 3422 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 3423 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3424 return FXCODEC_STATUS_ERROR; 3425 } 3426 m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; 3427 m_DecodeType = 2; 3428 m_pPause = pPause; 3429 m_pImage = pImage; 3430 (*m_pImage)->fill(0); 3431 LTP = 0; 3432 m_loopIndex = 0; 3433 m_pArithDecoder = pArithDecoder; 3434 m_gbContext = gbContext; 3435 return decode_Arith_V2(pPause); 3436 } 3437 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_V2(IFX_Pause* pPause) 3438 { 3439 FX_BOOL SLTP, bVal; 3440 FX_DWORD CONTEXT; 3441 CJBig2_Image *GBREG = *m_pImage; 3442 FX_DWORD line1, line2, line3; 3443 LTP = 0; 3444 JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); 3445 GBREG->fill(0); 3446 for(; m_loopIndex < GBH; m_loopIndex++) { 3447 if(TPGDON) { 3448 switch(GBTEMPLATE) { 3449 case 0: 3450 CONTEXT = 0x9b25; 3451 break; 3452 case 1: 3453 CONTEXT = 0x0795; 3454 break; 3455 case 2: 3456 CONTEXT = 0x00e5; 3457 break; 3458 case 3: 3459 CONTEXT = 0x0195; 3460 break; 3461 } 3462 SLTP = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3463 LTP = LTP ^ SLTP; 3464 } 3465 if(LTP == 1) { 3466 GBREG->copyLine(m_loopIndex, m_loopIndex - 1); 3467 } else { 3468 switch(GBTEMPLATE) { 3469 case 0: { 3470 line1 = GBREG->getPixel(1, m_loopIndex - 2); 3471 line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 1; 3472 line2 = GBREG->getPixel(2, m_loopIndex - 1); 3473 line2 |= GBREG->getPixel(1, m_loopIndex - 1) << 1; 3474 line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 2; 3475 line3 = 0; 3476 for(FX_DWORD w = 0; w < GBW; w++) { 3477 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3478 bVal = 0; 3479 } else { 3480 CONTEXT = line3; 3481 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3482 CONTEXT |= line2 << 5; 3483 CONTEXT |= GBREG->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; 3484 CONTEXT |= GBREG->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; 3485 CONTEXT |= line1 << 12; 3486 CONTEXT |= GBREG->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; 3487 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3488 } 3489 if(bVal) { 3490 GBREG->setPixel(w, m_loopIndex, bVal); 3491 } 3492 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 2)) & 0x07; 3493 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; 3494 line3 = ((line3 << 1) | bVal) & 0x0f; 3495 } 3496 } 3497 break; 3498 case 1: { 3499 line1 = GBREG->getPixel(2, m_loopIndex - 2); 3500 line1 |= GBREG->getPixel(1, m_loopIndex - 2) << 1; 3501 line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 2; 3502 line2 = GBREG->getPixel(2, m_loopIndex - 1); 3503 line2 |= GBREG->getPixel(1, m_loopIndex - 1) << 1; 3504 line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 2; 3505 line3 = 0; 3506 for(FX_DWORD w = 0; w < GBW; w++) { 3507 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3508 bVal = 0; 3509 } else { 3510 CONTEXT = line3; 3511 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 3; 3512 CONTEXT |= line2 << 4; 3513 CONTEXT |= line1 << 9; 3514 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3515 } 3516 if(bVal) { 3517 GBREG->setPixel(w, m_loopIndex, bVal); 3518 } 3519 line1 = ((line1 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 2)) & 0x0f; 3520 line2 = ((line2 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; 3521 line3 = ((line3 << 1) | bVal) & 0x07; 3522 } 3523 } 3524 break; 3525 case 2: { 3526 line1 = GBREG->getPixel(1, m_loopIndex - 2); 3527 line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 1; 3528 line2 = GBREG->getPixel(1, m_loopIndex - 1); 3529 line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 1; 3530 line3 = 0; 3531 for(FX_DWORD w = 0; w < GBW; w++) { 3532 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3533 bVal = 0; 3534 } else { 3535 CONTEXT = line3; 3536 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; 3537 CONTEXT |= line2 << 3; 3538 CONTEXT |= line1 << 7; 3539 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3540 } 3541 if(bVal) { 3542 GBREG->setPixel(w, m_loopIndex, bVal); 3543 } 3544 line1 = ((line1 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 2)) & 0x07; 3545 line2 = ((line2 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 1)) & 0x0f; 3546 line3 = ((line3 << 1) | bVal) & 0x03; 3547 } 3548 } 3549 break; 3550 case 3: { 3551 line1 = GBREG->getPixel(1, m_loopIndex - 1); 3552 line1 |= GBREG->getPixel(0, m_loopIndex - 1) << 1; 3553 line2 = 0; 3554 for(FX_DWORD w = 0; w < GBW; w++) { 3555 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3556 bVal = 0; 3557 } else { 3558 CONTEXT = line2; 3559 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3560 CONTEXT |= line1 << 5; 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 + 2, m_loopIndex - 1)) & 0x1f; 3567 line2 = ((line2 << 1) | bVal) & 0x0f; 3568 } 3569 } 3570 break; 3571 } 3572 } 3573 if(pPause && pPause->NeedToPauseNow()) { 3574 m_loopIndex ++; 3575 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3576 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3577 } 3578 } 3579 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3580 return FXCODEC_STATUS_DECODE_FINISH; 3581 } 3582 FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith_V1(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3583 { 3584 if(GBW == 0 || GBH == 0) { 3585 * pImage = NULL; 3586 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3587 return FXCODEC_STATUS_DECODE_FINISH; 3588 } 3589 if(*pImage == NULL) { 3590 JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); 3591 } 3592 if ((*pImage)->m_pData == NULL) { 3593 delete *pImage; 3594 *pImage = NULL; 3595 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 3596 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3597 return FXCODEC_STATUS_ERROR; 3598 } 3599 m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; 3600 m_pPause = pPause; 3601 m_pImage = pImage; 3602 m_DecodeType = 3; 3603 (*m_pImage)->fill(0); 3604 LTP = 0; 3605 m_loopIndex = 0; 3606 m_pArithDecoder = pArithDecoder; 3607 m_gbContext = gbContext; 3608 return decode_Arith_V1(pPause); 3609 } 3610 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_V1(IFX_Pause* pPause) 3611 { 3612 FX_BOOL SLTP, bVal; 3613 FX_DWORD CONTEXT = 0; 3614 CJBig2_Image *GBREG = (*m_pImage); 3615 for(; m_loopIndex < GBH; m_loopIndex++) { 3616 if(TPGDON) { 3617 switch(GBTEMPLATE) { 3618 case 0: 3619 CONTEXT = 0x9b25; 3620 break; 3621 case 1: 3622 CONTEXT = 0x0795; 3623 break; 3624 case 2: 3625 CONTEXT = 0x00e5; 3626 break; 3627 case 3: 3628 CONTEXT = 0x0195; 3629 break; 3630 } 3631 SLTP = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3632 LTP = LTP ^ SLTP; 3633 } 3634 if(LTP == 1) { 3635 for(FX_DWORD w = 0; w < GBW; w++) { 3636 GBREG->setPixel(w, m_loopIndex, GBREG->getPixel(w, m_loopIndex - 1)); 3637 } 3638 } else { 3639 for(FX_DWORD w = 0; w < GBW; w++) { 3640 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3641 GBREG->setPixel(w, m_loopIndex, 0); 3642 } else { 3643 CONTEXT = 0; 3644 switch(GBTEMPLATE) { 3645 case 0: 3646 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); 3647 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; 3648 CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; 3649 CONTEXT |= GBREG->getPixel(w - 4, m_loopIndex) << 3; 3650 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3651 CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 1) << 5; 3652 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 6; 3653 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 7; 3654 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 8; 3655 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 9; 3656 CONTEXT |= GBREG->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; 3657 CONTEXT |= GBREG->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; 3658 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 12; 3659 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 13; 3660 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 14; 3661 CONTEXT |= GBREG->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; 3662 break; 3663 case 1: 3664 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); 3665 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; 3666 CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; 3667 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 3; 3668 CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 1) << 4; 3669 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 5; 3670 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 6; 3671 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 7; 3672 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 8; 3673 CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 2) << 9; 3674 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 10; 3675 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 11; 3676 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 12; 3677 break; 3678 case 2: 3679 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); 3680 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; 3681 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; 3682 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 3; 3683 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 4; 3684 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 5; 3685 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 6; 3686 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 7; 3687 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 8; 3688 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 9; 3689 break; 3690 case 3: 3691 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); 3692 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; 3693 CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; 3694 CONTEXT |= GBREG->getPixel(w - 4, m_loopIndex) << 3; 3695 CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3696 CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 5; 3697 CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 6; 3698 CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 7; 3699 CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 8; 3700 CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex - 1) << 9; 3701 break; 3702 } 3703 bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); 3704 GBREG->setPixel(w, m_loopIndex, bVal); 3705 } 3706 } 3707 } 3708 if(pPause && pPause->NeedToPauseNow()) { 3709 m_loopIndex ++; 3710 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3711 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3712 } 3713 } 3714 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3715 return FXCODEC_STATUS_DECODE_FINISH; 3716 } 3717 FXCODEC_STATUS CJBig2_GRDProc::Start_decode_MMR(CJBig2_Image** pImage, CJBig2_BitStream *pStream, IFX_Pause* pPause) 3718 { 3719 int bitpos, i; 3720 JBIG2_ALLOC((* pImage), CJBig2_Image(GBW, GBH)); 3721 if ((* pImage)->m_pData == NULL) { 3722 delete (* pImage); 3723 (* pImage) = NULL; 3724 m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); 3725 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3726 return m_ProssiveStatus; 3727 } 3728 bitpos = (int)pStream->getBitPos(); 3729 _FaxG4Decode(m_pModule, pStream->getBuf(), pStream->getLength(), &bitpos, (* pImage)->m_pData, GBW, GBH, (* pImage)->m_nStride); 3730 pStream->setBitPos(bitpos); 3731 for(i = 0; (FX_DWORD)i < (* pImage)->m_nStride * GBH; i++) { 3732 (* pImage)->m_pData[i] = ~(* pImage)->m_pData[i]; 3733 } 3734 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3735 return m_ProssiveStatus; 3736 } 3737 FXCODEC_STATUS CJBig2_GRDProc::decode_MMR() 3738 { 3739 return m_ProssiveStatus; 3740 } 3741 FXCODEC_STATUS CJBig2_GRDProc::Continue_decode(IFX_Pause* pPause) 3742 { 3743 if(m_ProssiveStatus != FXCODEC_STATUS_DECODE_TOBECONTINUE) { 3744 return m_ProssiveStatus; 3745 } 3746 switch (m_DecodeType) { 3747 case 1: 3748 return decode_Arith(pPause); 3749 case 2: 3750 return decode_Arith_V2(pPause); 3751 case 3: 3752 return decode_Arith_V1(pPause); 3753 case 4: 3754 return decode_MMR(); 3755 } 3756 m_ProssiveStatus = FXCODEC_STATUS_ERROR; 3757 return m_ProssiveStatus; 3758 } 3759 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template0_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3760 { 3761 FX_BOOL SLTP, bVal; 3762 FX_DWORD CONTEXT; 3763 FX_DWORD line1, line2; 3764 FX_BYTE *pLine1, *pLine2, cVal; 3765 FX_INT32 nStride, nStride2, k; 3766 FX_INT32 nLineBytes, nBitsLeft, cc; 3767 if(m_pLine == NULL) { 3768 m_pLine = pImage->m_pData; 3769 } 3770 nStride = pImage->m_nStride; 3771 nStride2 = nStride << 1; 3772 nLineBytes = ((GBW + 7) >> 3) - 1; 3773 nBitsLeft = GBW - (nLineBytes << 3); 3774 FX_DWORD height = GBH & 0x7fffffff; 3775 for(; m_loopIndex < height; m_loopIndex++) { 3776 if(TPGDON) { 3777 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 3778 LTP = LTP ^ SLTP; 3779 } 3780 if(LTP == 1) { 3781 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 3782 } else { 3783 if(m_loopIndex > 1) { 3784 pLine1 = m_pLine - nStride2; 3785 pLine2 = m_pLine - nStride; 3786 line1 = (*pLine1++) << 6; 3787 line2 = *pLine2++; 3788 CONTEXT = ((line1 & 0xf800) | (line2 & 0x07f0)); 3789 for(cc = 0; cc < nLineBytes; cc++) { 3790 line1 = (line1 << 8) | ((*pLine1++) << 6); 3791 line2 = (line2 << 8) | (*pLine2++); 3792 cVal = 0; 3793 for(k = 7; k >= 0; k--) { 3794 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3795 cVal |= bVal << k; 3796 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 3797 | ((line1 >> k) & 0x0800) 3798 | ((line2 >> k) & 0x0010)); 3799 } 3800 m_pLine[cc] = cVal; 3801 } 3802 line1 <<= 8; 3803 line2 <<= 8; 3804 cVal = 0; 3805 for(k = 0; k < nBitsLeft; k++) { 3806 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3807 cVal |= bVal << (7 - k); 3808 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 3809 | ((line1 >> (7 - k)) & 0x0800) 3810 | ((line2 >> (7 - k)) & 0x0010)); 3811 } 3812 m_pLine[nLineBytes] = cVal; 3813 } else { 3814 pLine2 = m_pLine - nStride; 3815 line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; 3816 CONTEXT = (line2 & 0x07f0); 3817 for(cc = 0; cc < nLineBytes; cc++) { 3818 if(m_loopIndex & 1) { 3819 line2 = (line2 << 8) | (*pLine2++); 3820 } 3821 cVal = 0; 3822 for(k = 7; k >= 0; k--) { 3823 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3824 cVal |= bVal << k; 3825 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 3826 | ((line2 >> k) & 0x0010)); 3827 } 3828 m_pLine[cc] = cVal; 3829 } 3830 line2 <<= 8; 3831 cVal = 0; 3832 for(k = 0; k < nBitsLeft; k++) { 3833 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3834 cVal |= bVal << (7 - k); 3835 CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal 3836 | ((line2 >> (7 - k)) & 0x0010)); 3837 } 3838 m_pLine[nLineBytes] = cVal; 3839 } 3840 } 3841 m_pLine += nStride; 3842 if(pPause && pPause->NeedToPauseNow()) { 3843 m_loopIndex++; 3844 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3845 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3846 } 3847 } 3848 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3849 return FXCODEC_STATUS_DECODE_FINISH; 3850 } 3851 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template0_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3852 { 3853 FX_BOOL SLTP, bVal; 3854 FX_DWORD CONTEXT; 3855 FX_DWORD line1, line2, line3; 3856 for(; m_loopIndex < GBH; m_loopIndex++) { 3857 if(TPGDON) { 3858 SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); 3859 LTP = LTP ^ SLTP; 3860 } 3861 if(LTP == 1) { 3862 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 3863 } else { 3864 line1 = pImage->getPixel(1, m_loopIndex - 2); 3865 line1 |= pImage->getPixel(0, m_loopIndex - 2) << 1; 3866 line2 = pImage->getPixel(2, m_loopIndex - 1); 3867 line2 |= pImage->getPixel(1, m_loopIndex - 1) << 1; 3868 line2 |= pImage->getPixel(0, m_loopIndex - 1) << 2; 3869 line3 = 0; 3870 for(FX_DWORD w = 0; w < GBW; w++) { 3871 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 3872 bVal = 0; 3873 } else { 3874 CONTEXT = line3; 3875 CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 3876 CONTEXT |= line2 << 5; 3877 CONTEXT |= pImage->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; 3878 CONTEXT |= pImage->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; 3879 CONTEXT |= line1 << 12; 3880 CONTEXT |= pImage->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; 3881 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3882 } 3883 if(bVal) { 3884 pImage->setPixel(w, m_loopIndex, bVal); 3885 } 3886 line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 2)) & 0x07; 3887 line2 = ((line2 << 1) | pImage->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; 3888 line3 = ((line3 << 1) | bVal) & 0x0f; 3889 } 3890 } 3891 if(pPause && pPause->NeedToPauseNow()) { 3892 m_loopIndex++; 3893 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3894 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3895 } 3896 } 3897 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3898 return FXCODEC_STATUS_DECODE_FINISH; 3899 } 3900 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template1_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3901 { 3902 FX_BOOL SLTP, bVal; 3903 FX_DWORD CONTEXT; 3904 FX_DWORD line1, line2; 3905 FX_BYTE *pLine1, *pLine2, cVal; 3906 FX_INT32 nStride, nStride2, k; 3907 FX_INT32 nLineBytes, nBitsLeft, cc; 3908 if (!m_pLine) { 3909 m_pLine = pImage->m_pData; 3910 } 3911 nStride = pImage->m_nStride; 3912 nStride2 = nStride << 1; 3913 nLineBytes = ((GBW + 7) >> 3) - 1; 3914 nBitsLeft = GBW - (nLineBytes << 3); 3915 for(; m_loopIndex < GBH; m_loopIndex++) { 3916 if(TPGDON) { 3917 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 3918 LTP = LTP ^ SLTP; 3919 } 3920 if(LTP == 1) { 3921 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 3922 } else { 3923 if(m_loopIndex > 1) { 3924 pLine1 = m_pLine - nStride2; 3925 pLine2 = m_pLine - nStride; 3926 line1 = (*pLine1++) << 4; 3927 line2 = *pLine2++; 3928 CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); 3929 for(cc = 0; cc < nLineBytes; cc++) { 3930 line1 = (line1 << 8) | ((*pLine1++) << 4); 3931 line2 = (line2 << 8) | (*pLine2++); 3932 cVal = 0; 3933 for(k = 7; k >= 0; k--) { 3934 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3935 cVal |= bVal << k; 3936 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 3937 | ((line1 >> k) & 0x0200) 3938 | ((line2 >> (k + 1)) & 0x0008); 3939 } 3940 m_pLine[cc] = cVal; 3941 } 3942 line1 <<= 8; 3943 line2 <<= 8; 3944 cVal = 0; 3945 for(k = 0; k < nBitsLeft; k++) { 3946 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3947 cVal |= bVal << (7 - k); 3948 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 3949 | ((line1 >> (7 - k)) & 0x0200) 3950 | ((line2 >> (8 - k)) & 0x0008); 3951 } 3952 m_pLine[nLineBytes] = cVal; 3953 } else { 3954 pLine2 = m_pLine - nStride; 3955 line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; 3956 CONTEXT = (line2 >> 1) & 0x01f8; 3957 for(cc = 0; cc < nLineBytes; cc++) { 3958 if(m_loopIndex & 1) { 3959 line2 = (line2 << 8) | (*pLine2++); 3960 } 3961 cVal = 0; 3962 for(k = 7; k >= 0; k--) { 3963 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3964 cVal |= bVal << k; 3965 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 3966 | ((line2 >> (k + 1)) & 0x0008); 3967 } 3968 m_pLine[cc] = cVal; 3969 } 3970 line2 <<= 8; 3971 cVal = 0; 3972 for(k = 0; k < nBitsLeft; k++) { 3973 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 3974 cVal |= bVal << (7 - k); 3975 CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal 3976 | ((line2 >> (8 - k)) & 0x0008); 3977 } 3978 m_pLine[nLineBytes] = cVal; 3979 } 3980 } 3981 m_pLine += nStride; 3982 if(pPause && pPause->NeedToPauseNow()) { 3983 m_loopIndex++; 3984 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 3985 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 3986 } 3987 } 3988 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 3989 return FXCODEC_STATUS_DECODE_FINISH; 3990 } 3991 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template1_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 3992 { 3993 FX_BOOL SLTP, bVal; 3994 FX_DWORD CONTEXT; 3995 FX_DWORD line1, line2, line3; 3996 for(FX_DWORD h = 0; h < GBH; h++) { 3997 if(TPGDON) { 3998 SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); 3999 LTP = LTP ^ SLTP; 4000 } 4001 if(LTP == 1) { 4002 pImage->copyLine(h, h - 1); 4003 } else { 4004 line1 = pImage->getPixel(2, h - 2); 4005 line1 |= pImage->getPixel(1, h - 2) << 1; 4006 line1 |= pImage->getPixel(0, h - 2) << 2; 4007 line2 = pImage->getPixel(2, h - 1); 4008 line2 |= pImage->getPixel(1, h - 1) << 1; 4009 line2 |= pImage->getPixel(0, h - 1) << 2; 4010 line3 = 0; 4011 for(FX_DWORD w = 0; w < GBW; w++) { 4012 if(USESKIP && SKIP->getPixel(w, h)) { 4013 bVal = 0; 4014 } else { 4015 CONTEXT = line3; 4016 CONTEXT |= pImage->getPixel(w + GBAT[0], h + GBAT[1]) << 3; 4017 CONTEXT |= line2 << 4; 4018 CONTEXT |= line1 << 9; 4019 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4020 } 4021 if(bVal) { 4022 pImage->setPixel(w, h, bVal); 4023 } 4024 line1 = ((line1 << 1) | pImage->getPixel(w + 3, h - 2)) & 0x0f; 4025 line2 = ((line2 << 1) | pImage->getPixel(w + 3, h - 1)) & 0x1f; 4026 line3 = ((line3 << 1) | bVal) & 0x07; 4027 } 4028 } 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_Template2_opt3(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; 4043 FX_BYTE *pLine1, *pLine2, cVal; 4044 FX_INT32 nStride, nStride2, k; 4045 FX_INT32 nLineBytes, nBitsLeft, cc; 4046 if(!m_pLine) { 4047 m_pLine = pImage->m_pData; 4048 } 4049 nStride = pImage->m_nStride; 4050 nStride2 = nStride << 1; 4051 nLineBytes = ((GBW + 7) >> 3) - 1; 4052 nBitsLeft = GBW - (nLineBytes << 3); 4053 for(; m_loopIndex < GBH; m_loopIndex++) { 4054 if(TPGDON) { 4055 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 4056 LTP = LTP ^ SLTP; 4057 } 4058 if(LTP == 1) { 4059 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 4060 } else { 4061 if(m_loopIndex > 1) { 4062 pLine1 = m_pLine - nStride2; 4063 pLine2 = m_pLine - nStride; 4064 line1 = (*pLine1++) << 1; 4065 line2 = *pLine2++; 4066 CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); 4067 for(cc = 0; cc < nLineBytes; cc++) { 4068 line1 = (line1 << 8) | ((*pLine1++) << 1); 4069 line2 = (line2 << 8) | (*pLine2++); 4070 cVal = 0; 4071 for(k = 7; k >= 0; k--) { 4072 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4073 cVal |= bVal << k; 4074 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 4075 | ((line1 >> k) & 0x0080) 4076 | ((line2 >> (k + 3)) & 0x0004); 4077 } 4078 m_pLine[cc] = cVal; 4079 } 4080 line1 <<= 8; 4081 line2 <<= 8; 4082 cVal = 0; 4083 for(k = 0; k < nBitsLeft; k++) { 4084 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4085 cVal |= bVal << (7 - k); 4086 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 4087 | ((line1 >> (7 - k)) & 0x0080) 4088 | ((line2 >> (10 - k)) & 0x0004); 4089 } 4090 m_pLine[nLineBytes] = cVal; 4091 } else { 4092 pLine2 = m_pLine - nStride; 4093 line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; 4094 CONTEXT = (line2 >> 3) & 0x007c; 4095 for(cc = 0; cc < nLineBytes; cc++) { 4096 if(m_loopIndex & 1) { 4097 line2 = (line2 << 8) | (*pLine2++); 4098 } 4099 cVal = 0; 4100 for(k = 7; k >= 0; k--) { 4101 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4102 cVal |= bVal << k; 4103 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 4104 | ((line2 >> (k + 3)) & 0x0004); 4105 } 4106 m_pLine[cc] = cVal; 4107 } 4108 line2 <<= 8; 4109 cVal = 0; 4110 for(k = 0; k < nBitsLeft; k++) { 4111 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4112 cVal |= bVal << (7 - k); 4113 CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal 4114 | (((line2 >> (10 - k))) & 0x0004); 4115 } 4116 m_pLine[nLineBytes] = cVal; 4117 } 4118 } 4119 m_pLine += nStride; 4120 if(pPause && m_loopIndex % 50 == 0 && pPause->NeedToPauseNow()) { 4121 m_loopIndex++; 4122 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4123 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4124 } 4125 } 4126 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4127 return FXCODEC_STATUS_DECODE_FINISH; 4128 } 4129 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template2_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 4130 { 4131 FX_BOOL SLTP, bVal; 4132 FX_DWORD CONTEXT; 4133 FX_DWORD line1, line2, line3; 4134 for(; m_loopIndex < GBH; m_loopIndex++) { 4135 if(TPGDON) { 4136 SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); 4137 LTP = LTP ^ SLTP; 4138 } 4139 if(LTP == 1) { 4140 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 4141 } else { 4142 line1 = pImage->getPixel(1, m_loopIndex - 2); 4143 line1 |= pImage->getPixel(0, m_loopIndex - 2) << 1; 4144 line2 = pImage->getPixel(1, m_loopIndex - 1); 4145 line2 |= pImage->getPixel(0, m_loopIndex - 1) << 1; 4146 line3 = 0; 4147 for(FX_DWORD w = 0; w < GBW; w++) { 4148 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 4149 bVal = 0; 4150 } else { 4151 CONTEXT = line3; 4152 CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; 4153 CONTEXT |= line2 << 3; 4154 CONTEXT |= line1 << 7; 4155 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4156 } 4157 if(bVal) { 4158 pImage->setPixel(w, m_loopIndex, bVal); 4159 } 4160 line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 2)) & 0x07; 4161 line2 = ((line2 << 1) | pImage->getPixel(w + 2, m_loopIndex - 1)) & 0x0f; 4162 line3 = ((line3 << 1) | bVal) & 0x03; 4163 } 4164 } 4165 if(pPause && pPause->NeedToPauseNow()) { 4166 m_loopIndex++; 4167 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4168 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4169 } 4170 } 4171 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4172 return FXCODEC_STATUS_DECODE_FINISH; 4173 } 4174 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template3_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 4175 { 4176 FX_BOOL SLTP, bVal; 4177 FX_DWORD CONTEXT; 4178 FX_DWORD line1; 4179 FX_BYTE *pLine1, cVal; 4180 FX_INT32 nStride, k; 4181 FX_INT32 nLineBytes, nBitsLeft, cc; 4182 if (!m_pLine) { 4183 m_pLine = pImage->m_pData; 4184 } 4185 nStride = pImage->m_nStride; 4186 nLineBytes = ((GBW + 7) >> 3) - 1; 4187 nBitsLeft = GBW - (nLineBytes << 3); 4188 for(; m_loopIndex < GBH; m_loopIndex++) { 4189 if(TPGDON) { 4190 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 4191 LTP = LTP ^ SLTP; 4192 } 4193 if(LTP == 1) { 4194 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 4195 } else { 4196 if(m_loopIndex > 0) { 4197 pLine1 = m_pLine - nStride; 4198 line1 = *pLine1++; 4199 CONTEXT = (line1 >> 1) & 0x03f0; 4200 for(cc = 0; cc < nLineBytes; cc++) { 4201 line1 = (line1 << 8) | (*pLine1++); 4202 cVal = 0; 4203 for(k = 7; k >= 0; k--) { 4204 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4205 cVal |= bVal << k; 4206 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 4207 | ((line1 >> (k + 1)) & 0x0010); 4208 } 4209 m_pLine[cc] = cVal; 4210 } 4211 line1 <<= 8; 4212 cVal = 0; 4213 for(k = 0; k < nBitsLeft; k++) { 4214 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4215 cVal |= bVal << (7 - k); 4216 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal 4217 | ((line1 >> (8 - k)) & 0x0010); 4218 } 4219 m_pLine[nLineBytes] = cVal; 4220 } else { 4221 CONTEXT = 0; 4222 for(cc = 0; cc < nLineBytes; cc++) { 4223 cVal = 0; 4224 for(k = 7; k >= 0; k--) { 4225 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4226 cVal |= bVal << k; 4227 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; 4228 } 4229 m_pLine[cc] = cVal; 4230 } 4231 cVal = 0; 4232 for(k = 0; k < nBitsLeft; k++) { 4233 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4234 cVal |= bVal << (7 - k); 4235 CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; 4236 } 4237 m_pLine[nLineBytes] = cVal; 4238 } 4239 } 4240 m_pLine += nStride; 4241 if(pPause && pPause->NeedToPauseNow()) { 4242 m_loopIndex++; 4243 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4244 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4245 } 4246 } 4247 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4248 return FXCODEC_STATUS_DECODE_FINISH; 4249 } 4250 FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template3_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) 4251 { 4252 FX_BOOL SLTP, bVal; 4253 FX_DWORD CONTEXT; 4254 FX_DWORD line1, line2; 4255 for(; m_loopIndex < GBH; m_loopIndex++) { 4256 if(TPGDON) { 4257 SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); 4258 LTP = LTP ^ SLTP; 4259 } 4260 if(LTP == 1) { 4261 pImage->copyLine(m_loopIndex, m_loopIndex - 1); 4262 } else { 4263 line1 = pImage->getPixel(1, m_loopIndex - 1); 4264 line1 |= pImage->getPixel(0, m_loopIndex - 1) << 1; 4265 line2 = 0; 4266 for(FX_DWORD w = 0; w < GBW; w++) { 4267 if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { 4268 bVal = 0; 4269 } else { 4270 CONTEXT = line2; 4271 CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; 4272 CONTEXT |= line1 << 5; 4273 bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); 4274 } 4275 if(bVal) { 4276 pImage->setPixel(w, m_loopIndex, bVal); 4277 } 4278 line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 1)) & 0x1f; 4279 line2 = ((line2 << 1) | bVal) & 0x0f; 4280 } 4281 } 4282 if(pPause && pPause->NeedToPauseNow()) { 4283 m_loopIndex++; 4284 m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; 4285 return FXCODEC_STATUS_DECODE_TOBECONTINUE; 4286 } 4287 } 4288 m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; 4289 return FXCODEC_STATUS_DECODE_FINISH; 4290 } 4291
