| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "JBig2_GeneralDecoder.h" |
| #include "JBig2_ArithDecoder.h" |
| #include "JBig2_ArithIntDecoder.h" |
| #include "JBig2_HuffmanDecoder.h" |
| #include "JBig2_HuffmanTable.h" |
| #include "JBig2_PatternDict.h" |
| |
| extern const JBig2ArithQe QeTable[] = { |
| { 0x5601, 1, 1, 1 }, |
| { 0x3401, 2, 6, 0 }, |
| { 0x1801, 3, 9, 0 }, |
| { 0x0AC1, 4, 12, 0 }, |
| { 0x0521, 5, 29, 0 }, |
| { 0x0221, 38, 33, 0 }, |
| { 0x5601, 7, 6, 1 }, |
| { 0x5401, 8, 14, 0 }, |
| { 0x4801, 9, 14, 0 }, |
| { 0x3801, 10, 14, 0 }, |
| { 0x3001, 11, 17, 0 }, |
| { 0x2401, 12, 18, 0 }, |
| { 0x1C01, 13, 20, 0 }, |
| { 0x1601, 29, 21, 0 }, |
| { 0x5601, 15, 14, 1 }, |
| { 0x5401, 16, 14, 0 }, |
| { 0x5101, 17, 15, 0 }, |
| { 0x4801, 18, 16, 0 }, |
| { 0x3801, 19, 17, 0 }, |
| { 0x3401, 20, 18, 0 }, |
| { 0x3001, 21, 19, 0 }, |
| { 0x2801, 22, 19, 0 }, |
| { 0x2401, 23, 20, 0 }, |
| { 0x2201, 24, 21, 0 }, |
| { 0x1C01, 25, 22, 0 }, |
| { 0x1801, 26, 23, 0 }, |
| { 0x1601, 27, 24, 0 }, |
| { 0x1401, 28, 25, 0 }, |
| { 0x1201, 29, 26, 0 }, |
| { 0x1101, 30, 27, 0 }, |
| { 0x0AC1, 31, 28, 0 }, |
| { 0x09C1, 32, 29, 0 }, |
| { 0x08A1, 33, 30, 0 }, |
| { 0x0521, 34, 31, 0 }, |
| { 0x0441, 35, 32, 0 }, |
| { 0x02A1, 36, 33, 0 }, |
| { 0x0221, 37, 34, 0 }, |
| { 0x0141, 38, 35, 0 }, |
| { 0x0111, 39, 36, 0 }, |
| { 0x0085, 40, 37, 0 }, |
| { 0x0049, 41, 38, 0 }, |
| { 0x0025, 42, 39, 0 }, |
| { 0x0015, 43, 40, 0 }, |
| { 0x0009, 44, 41, 0 }, |
| { 0x0005, 45, 42, 0 }, |
| { 0x0001, 45, 43, 0 }, |
| { 0x5601, 46, 46, 0 } |
| }; |
| |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| if (GBW == 0 || GBH == 0) { |
| CJBig2_Image* pImage; |
| JBIG2_ALLOC(pImage, CJBig2_Image(GBW, GBH)); |
| return pImage; |
| } |
| if(GBTEMPLATE == 0) { |
| if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1) |
| && (GBAT[2] == (signed char) - 3) && (GBAT[3] == (signed char) - 1) |
| && (GBAT[4] == 2) && (GBAT[5] == (signed char) - 2) |
| && (GBAT[6] == (signed char) - 2) && (GBAT[7] == (signed char) - 2)) { |
| return decode_Arith_Template0_opt3(pArithDecoder, gbContext); |
| } else { |
| return decode_Arith_Template0_unopt(pArithDecoder, gbContext); |
| } |
| } else if(GBTEMPLATE == 1) { |
| if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1)) { |
| return decode_Arith_Template1_opt3(pArithDecoder, gbContext); |
| } else { |
| return decode_Arith_Template1_unopt(pArithDecoder, gbContext); |
| } |
| } else if(GBTEMPLATE == 2) { |
| if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { |
| return decode_Arith_Template2_opt3(pArithDecoder, gbContext); |
| } else { |
| return decode_Arith_Template2_unopt(pArithDecoder, gbContext); |
| } |
| } else { |
| if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { |
| return decode_Arith_Template3_opt3(pArithDecoder, gbContext); |
| } else { |
| return decode_Arith_Template3_unopt(pArithDecoder, gbContext); |
| } |
| } |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2, line3; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = GBREG->getPixel(2, h - 2); |
| line1 |= GBREG->getPixel(1, h - 2) << 1; |
| line1 |= GBREG->getPixel(0, h - 2) << 2; |
| line2 = GBREG->getPixel(3, h - 1); |
| line2 |= GBREG->getPixel(2, h - 1) << 1; |
| line2 |= GBREG->getPixel(1, h - 1) << 2; |
| line2 |= GBREG->getPixel(0, h - 1) << 3; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= line2 << 4; |
| CONTEXT |= line1 << 11; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x1f; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 4, h - 1)) & 0x7f; |
| line3 = ((line3 << 1) | bVal) & 0x0f; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine, cVal; |
| FX_INTPTR nStride, nStride2; |
| FX_INT32 nBits, k; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| if (GBREG->m_pData == NULL) { |
| delete GBREG; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| pLine = GBREG->m_pData; |
| nStride = GBREG->m_nStride; |
| nStride2 = nStride << 1; |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = (h > 1) ? pLine[-nStride2] << 6 : 0; |
| line2 = (h > 0) ? pLine[-nStride] : 0; |
| CONTEXT = (line1 & 0xf800) | (line2 & 0x07f0); |
| for(FX_DWORD w = 0; w < GBW; w += 8) { |
| if(w + 8 < GBW) { |
| nBits = 8; |
| if(h > 1) { |
| line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 6); |
| } |
| if(h > 0) { |
| line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); |
| } |
| } else { |
| nBits = GBW - w; |
| if(h > 1) { |
| line1 <<= 8; |
| } |
| if(h > 0) { |
| line2 <<= 8; |
| } |
| } |
| cVal = 0; |
| for(k = 0; k < nBits; k++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x7bf7) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0800) |
| | ((line2 >> (7 - k)) & 0x0010); |
| } |
| pLine[w >> 3] = cVal; |
| } |
| } |
| pLine += nStride; |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine, *pLine1, *pLine2, cVal; |
| FX_INT32 nStride, nStride2, k; |
| FX_INT32 nLineBytes, nBitsLeft, cc; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| if (GBREG->m_pData == NULL) { |
| delete GBREG; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| pLine = GBREG->m_pData; |
| nStride = GBREG->m_nStride; |
| nStride2 = nStride << 1; |
| nLineBytes = ((GBW + 7) >> 3) - 1; |
| nBitsLeft = GBW - (nLineBytes << 3); |
| FX_DWORD height = GBH & 0x7fffffff; |
| for(FX_DWORD h = 0; h < height; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| if(h > 1) { |
| pLine1 = pLine - nStride2; |
| pLine2 = pLine - nStride; |
| line1 = (*pLine1++) << 6; |
| line2 = *pLine2++; |
| CONTEXT = ((line1 & 0xf800) | (line2 & 0x07f0)); |
| for(cc = 0; cc < nLineBytes; cc++) { |
| line1 = (line1 << 8) | ((*pLine1++) << 6); |
| line2 = (line2 << 8) | (*pLine2++); |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
| | ((line1 >> k) & 0x0800) |
| | ((line2 >> k) & 0x0010)); |
| } |
| pLine[cc] = cVal; |
| } |
| line1 <<= 8; |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0800) |
| | ((line2 >> (7 - k)) & 0x0010)); |
| } |
| pLine[nLineBytes] = cVal; |
| } else { |
| pLine2 = pLine - nStride; |
| line2 = (h & 1) ? (*pLine2++) : 0; |
| CONTEXT = (line2 & 0x07f0); |
| for(cc = 0; cc < nLineBytes; cc++) { |
| if(h & 1) { |
| line2 = (line2 << 8) | (*pLine2++); |
| } |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
| | ((line2 >> k) & 0x0010)); |
| } |
| pLine[cc] = cVal; |
| } |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
| | (((line2 >> (7 - k))) & 0x0010)); |
| } |
| pLine[nLineBytes] = cVal; |
| } |
| } |
| pLine += nStride; |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template0_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2, line3; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = GBREG->getPixel(1, h - 2); |
| line1 |= GBREG->getPixel(0, h - 2) << 1; |
| line2 = GBREG->getPixel(2, h - 1); |
| line2 |= GBREG->getPixel(1, h - 1) << 1; |
| line2 |= GBREG->getPixel(0, h - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; |
| CONTEXT |= line2 << 5; |
| CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; |
| CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; |
| CONTEXT |= line1 << 12; |
| CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x0f; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2, line3; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = GBREG->getPixel(2, h - 2); |
| line1 |= GBREG->getPixel(1, h - 2) << 1; |
| line1 |= GBREG->getPixel(0, h - 2) << 2; |
| line2 = GBREG->getPixel(3, h - 1); |
| line2 |= GBREG->getPixel(2, h - 1) << 1; |
| line2 |= GBREG->getPixel(1, h - 1) << 2; |
| line2 |= GBREG->getPixel(0, h - 1) << 3; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= line2 << 3; |
| CONTEXT |= line1 << 9; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 4, h - 1)) & 0x3f; |
| line3 = ((line3 << 1) | bVal) & 0x07; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine, cVal; |
| FX_INTPTR nStride, nStride2; |
| FX_INT32 nBits, k; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| if (GBREG->m_pData == NULL) { |
| delete GBREG; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| pLine = GBREG->m_pData; |
| nStride = GBREG->m_nStride; |
| nStride2 = nStride << 1; |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = (h > 1) ? pLine[-nStride2] << 4 : 0; |
| line2 = (h > 0) ? pLine[-nStride] : 0; |
| CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); |
| for(FX_DWORD w = 0; w < GBW; w += 8) { |
| if(w + 8 < GBW) { |
| nBits = 8; |
| if(h > 1) { |
| line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 4); |
| } |
| if(h > 0) { |
| line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); |
| } |
| } else { |
| nBits = GBW - w; |
| if(h > 1) { |
| line1 <<= 8; |
| } |
| if(h > 0) { |
| line2 <<= 8; |
| } |
| } |
| cVal = 0; |
| for(k = 0; k < nBits; k++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0200) |
| | ((line2 >> (8 - k)) & 0x0008); |
| } |
| pLine[w >> 3] = cVal; |
| } |
| } |
| pLine += nStride; |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine, *pLine1, *pLine2, cVal; |
| FX_INT32 nStride, nStride2, k; |
| FX_INT32 nLineBytes, nBitsLeft, cc; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| if (GBREG->m_pData == NULL) { |
| delete GBREG; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| pLine = GBREG->m_pData; |
| nStride = GBREG->m_nStride; |
| nStride2 = nStride << 1; |
| nLineBytes = ((GBW + 7) >> 3) - 1; |
| nBitsLeft = GBW - (nLineBytes << 3); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| if(h > 1) { |
| pLine1 = pLine - nStride2; |
| pLine2 = pLine - nStride; |
| line1 = (*pLine1++) << 4; |
| line2 = *pLine2++; |
| CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); |
| for(cc = 0; cc < nLineBytes; cc++) { |
| line1 = (line1 << 8) | ((*pLine1++) << 4); |
| line2 = (line2 << 8) | (*pLine2++); |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line1 >> k) & 0x0200) |
| | ((line2 >> (k + 1)) & 0x0008); |
| } |
| pLine[cc] = cVal; |
| } |
| line1 <<= 8; |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0200) |
| | ((line2 >> (8 - k)) & 0x0008); |
| } |
| pLine[nLineBytes] = cVal; |
| } else { |
| pLine2 = pLine - nStride; |
| line2 = (h & 1) ? (*pLine2++) : 0; |
| CONTEXT = (line2 >> 1) & 0x01f8; |
| for(cc = 0; cc < nLineBytes; cc++) { |
| if(h & 1) { |
| line2 = (line2 << 8) | (*pLine2++); |
| } |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line2 >> (k + 1)) & 0x0008); |
| } |
| pLine[cc] = cVal; |
| } |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line2 >> (8 - k)) & 0x0008); |
| } |
| pLine[nLineBytes] = cVal; |
| } |
| } |
| pLine += nStride; |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template1_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2, line3; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = GBREG->getPixel(2, h - 2); |
| line1 |= GBREG->getPixel(1, h - 2) << 1; |
| line1 |= GBREG->getPixel(0, h - 2) << 2; |
| line2 = GBREG->getPixel(2, h - 1); |
| line2 |= GBREG->getPixel(1, h - 1) << 1; |
| line2 |= GBREG->getPixel(0, h - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; |
| CONTEXT |= line2 << 4; |
| CONTEXT |= line1 << 9; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x07; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2, line3; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = GBREG->getPixel(1, h - 2); |
| line1 |= GBREG->getPixel(0, h - 2) << 1; |
| line2 = GBREG->getPixel(2, h - 1); |
| line2 |= GBREG->getPixel(1, h - 1) << 1; |
| line2 |= GBREG->getPixel(0, h - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= line2 << 2; |
| CONTEXT |= line1 << 7; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x03; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine, cVal; |
| FX_INTPTR nStride, nStride2; |
| FX_INT32 nBits, k; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| if (GBREG->m_pData == NULL) { |
| delete GBREG; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| pLine = GBREG->m_pData; |
| nStride = GBREG->m_nStride; |
| nStride2 = nStride << 1; |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = (h > 1) ? pLine[-nStride2] << 1 : 0; |
| line2 = (h > 0) ? pLine[-nStride] : 0; |
| CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); |
| for(FX_DWORD w = 0; w < GBW; w += 8) { |
| if(w + 8 < GBW) { |
| nBits = 8; |
| if(h > 1) { |
| line1 = (line1 << 8) | (pLine[-nStride2 + (w >> 3) + 1] << 1); |
| } |
| if(h > 0) { |
| line2 = (line2 << 8) | (pLine[-nStride + (w >> 3) + 1]); |
| } |
| } else { |
| nBits = GBW - w; |
| if(h > 1) { |
| line1 <<= 8; |
| } |
| if(h > 0) { |
| line2 <<= 8; |
| } |
| } |
| cVal = 0; |
| for(k = 0; k < nBits; k++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0080) |
| | ((line2 >> (10 - k)) & 0x0004); |
| } |
| pLine[w >> 3] = cVal; |
| } |
| } |
| pLine += nStride; |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine, *pLine1, *pLine2, cVal; |
| FX_INT32 nStride, nStride2, k; |
| FX_INT32 nLineBytes, nBitsLeft, cc; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| if (GBREG->m_pData == NULL) { |
| delete GBREG; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| pLine = GBREG->m_pData; |
| nStride = GBREG->m_nStride; |
| nStride2 = nStride << 1; |
| nLineBytes = ((GBW + 7) >> 3) - 1; |
| nBitsLeft = GBW - (nLineBytes << 3); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| if(h > 1) { |
| pLine1 = pLine - nStride2; |
| pLine2 = pLine - nStride; |
| line1 = (*pLine1++) << 1; |
| line2 = *pLine2++; |
| CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); |
| for(cc = 0; cc < nLineBytes; cc++) { |
| line1 = (line1 << 8) | ((*pLine1++) << 1); |
| line2 = (line2 << 8) | (*pLine2++); |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | ((line1 >> k) & 0x0080) |
| | ((line2 >> (k + 3)) & 0x0004); |
| } |
| pLine[cc] = cVal; |
| } |
| line1 <<= 8; |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0080) |
| | ((line2 >> (10 - k)) & 0x0004); |
| } |
| pLine[nLineBytes] = cVal; |
| } else { |
| pLine2 = pLine - nStride; |
| line2 = (h & 1) ? (*pLine2++) : 0; |
| CONTEXT = (line2 >> 3) & 0x007c; |
| for(cc = 0; cc < nLineBytes; cc++) { |
| if(h & 1) { |
| line2 = (line2 << 8) | (*pLine2++); |
| } |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | ((line2 >> (k + 3)) & 0x0004); |
| } |
| pLine[cc] = cVal; |
| } |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | (((line2 >> (10 - k))) & 0x0004); |
| } |
| pLine[nLineBytes] = cVal; |
| } |
| } |
| pLine += nStride; |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template2_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2, line3; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = GBREG->getPixel(1, h - 2); |
| line1 |= GBREG->getPixel(0, h - 2) << 1; |
| line2 = GBREG->getPixel(1, h - 1); |
| line2 |= GBREG->getPixel(0, h - 1) << 1; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; |
| CONTEXT |= line2 << 3; |
| CONTEXT |= line1 << 7; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x0f; |
| line3 = ((line3 << 1) | bVal) & 0x03; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = GBREG->getPixel(2, h - 1); |
| line1 |= GBREG->getPixel(1, h - 1) << 1; |
| line1 |= GBREG->getPixel(0, h - 1) << 2; |
| line2 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line2; |
| CONTEXT |= line1 << 4; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x3f; |
| line2 = ((line2 << 1) | bVal) & 0x0f; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1; |
| FX_BYTE *pLine, cVal; |
| FX_INTPTR nStride, nStride2; |
| FX_INT32 nBits, k; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| if (GBREG->m_pData == NULL) { |
| delete GBREG; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| pLine = GBREG->m_pData; |
| nStride = GBREG->m_nStride; |
| nStride2 = nStride << 1; |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = (h > 0) ? pLine[-nStride] : 0; |
| CONTEXT = (line1 >> 1) & 0x03f0; |
| for(FX_DWORD w = 0; w < GBW; w += 8) { |
| if(w + 8 < GBW) { |
| nBits = 8; |
| if(h > 0) { |
| line1 = (line1 << 8) | (pLine[-nStride + (w >> 3) + 1]); |
| } |
| } else { |
| nBits = GBW - w; |
| if(h > 0) { |
| line1 <<= 8; |
| } |
| } |
| cVal = 0; |
| for(k = 0; k < nBits; k++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal |
| | ((line1 >> (8 - k)) & 0x0010); |
| } |
| pLine[w >> 3] = cVal; |
| } |
| } |
| pLine += nStride; |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_opt3(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1; |
| FX_BYTE *pLine, *pLine1, cVal; |
| FX_INT32 nStride, k; |
| FX_INT32 nLineBytes, nBitsLeft, cc; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| if (GBREG->m_pData == NULL) { |
| delete GBREG; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| pLine = GBREG->m_pData; |
| nStride = GBREG->m_nStride; |
| nLineBytes = ((GBW + 7) >> 3) - 1; |
| nBitsLeft = GBW - (nLineBytes << 3); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| if(h > 0) { |
| pLine1 = pLine - nStride; |
| line1 = *pLine1++; |
| CONTEXT = (line1 >> 1) & 0x03f0; |
| for(cc = 0; cc < nLineBytes; cc++) { |
| line1 = (line1 << 8) | (*pLine1++); |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal |
| | ((line1 >> (k + 1)) & 0x0010); |
| } |
| pLine[cc] = cVal; |
| } |
| line1 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal |
| | ((line1 >> (8 - k)) & 0x0010); |
| } |
| pLine[nLineBytes] = cVal; |
| } else { |
| CONTEXT = 0; |
| for(cc = 0; cc < nLineBytes; cc++) { |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; |
| } |
| pLine[cc] = cVal; |
| } |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; |
| } |
| pLine[nLineBytes] = cVal; |
| } |
| } |
| pLine += nStride; |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_Template3_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| line1 = GBREG->getPixel(1, h - 1); |
| line1 |= GBREG->getPixel(0, h - 1) << 1; |
| line2 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line2; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; |
| CONTEXT |= line1 << 5; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x1f; |
| line2 = ((line2 << 1) | bVal) & 0x0f; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_V2(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG; |
| FX_DWORD line1, line2, line3; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| switch(GBTEMPLATE) { |
| case 0: |
| CONTEXT = 0x9b25; |
| break; |
| case 1: |
| CONTEXT = 0x0795; |
| break; |
| case 2: |
| CONTEXT = 0x00e5; |
| break; |
| case 3: |
| CONTEXT = 0x0195; |
| break; |
| } |
| SLTP = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(h, h - 1); |
| } else { |
| switch(GBTEMPLATE) { |
| case 0: { |
| line1 = GBREG->getPixel(1, h - 2); |
| line1 |= GBREG->getPixel(0, h - 2) << 1; |
| line2 = GBREG->getPixel(2, h - 1); |
| line2 |= GBREG->getPixel(1, h - 1) << 1; |
| line2 |= GBREG->getPixel(0, h - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; |
| CONTEXT |= line2 << 5; |
| CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; |
| CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; |
| CONTEXT |= line1 << 12; |
| CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x0f; |
| } |
| } |
| break; |
| case 1: { |
| line1 = GBREG->getPixel(2, h - 2); |
| line1 |= GBREG->getPixel(1, h - 2) << 1; |
| line1 |= GBREG->getPixel(0, h - 2) << 2; |
| line2 = GBREG->getPixel(2, h - 1); |
| line2 |= GBREG->getPixel(1, h - 1) << 1; |
| line2 |= GBREG->getPixel(0, h - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; |
| CONTEXT |= line2 << 4; |
| CONTEXT |= line1 << 9; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x07; |
| } |
| } |
| break; |
| case 2: { |
| line1 = GBREG->getPixel(1, h - 2); |
| line1 |= GBREG->getPixel(0, h - 2) << 1; |
| line2 = GBREG->getPixel(1, h - 1); |
| line2 |= GBREG->getPixel(0, h - 1) << 1; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; |
| CONTEXT |= line2 << 3; |
| CONTEXT |= line1 << 7; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x0f; |
| line3 = ((line3 << 1) | bVal) & 0x03; |
| } |
| } |
| break; |
| case 3: { |
| line1 = GBREG->getPixel(1, h - 1); |
| line1 |= GBREG->getPixel(0, h - 1) << 1; |
| line2 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line2; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; |
| CONTEXT |= line1 << 5; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x1f; |
| line2 = ((line2 << 1) | bVal) & 0x0f; |
| } |
| } |
| break; |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_Arith_V1(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT = 0; |
| CJBig2_Image *GBREG; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| switch(GBTEMPLATE) { |
| case 0: |
| CONTEXT = 0x9b25; |
| break; |
| case 1: |
| CONTEXT = 0x0795; |
| break; |
| case 2: |
| CONTEXT = 0x00e5; |
| break; |
| case 3: |
| CONTEXT = 0x0195; |
| break; |
| } |
| SLTP = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| GBREG->setPixel(w, h, GBREG->getPixel(w, h - 1)); |
| } |
| } else { |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| GBREG->setPixel(w, h, 0); |
| } else { |
| CONTEXT = 0; |
| switch(GBTEMPLATE) { |
| case 0: |
| CONTEXT |= GBREG->getPixel(w - 1, h); |
| CONTEXT |= GBREG->getPixel(w - 2, h) << 1; |
| CONTEXT |= GBREG->getPixel(w - 3, h) << 2; |
| CONTEXT |= GBREG->getPixel(w - 4, h) << 3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; |
| CONTEXT |= GBREG->getPixel(w + 2, h - 1) << 5; |
| CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 6; |
| CONTEXT |= GBREG->getPixel(w, h - 1) << 7; |
| CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 8; |
| CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 9; |
| CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10; |
| CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11; |
| CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 12; |
| CONTEXT |= GBREG->getPixel(w, h - 2) << 13; |
| CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 14; |
| CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15; |
| break; |
| case 1: |
| CONTEXT |= GBREG->getPixel(w - 1, h); |
| CONTEXT |= GBREG->getPixel(w - 2, h) << 1; |
| CONTEXT |= GBREG->getPixel(w - 3, h) << 2; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3; |
| CONTEXT |= GBREG->getPixel(w + 2, h - 1) << 4; |
| CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 5; |
| CONTEXT |= GBREG->getPixel(w, h - 1) << 6; |
| CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 7; |
| CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 8; |
| CONTEXT |= GBREG->getPixel(w + 2, h - 2) << 9; |
| CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 10; |
| CONTEXT |= GBREG->getPixel(w, h - 2) << 11; |
| CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 12; |
| break; |
| case 2: |
| CONTEXT |= GBREG->getPixel(w - 1, h); |
| CONTEXT |= GBREG->getPixel(w - 2, h) << 1; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2; |
| CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 3; |
| CONTEXT |= GBREG->getPixel(w, h - 1) << 4; |
| CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 5; |
| CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 6; |
| CONTEXT |= GBREG->getPixel(w + 1, h - 2) << 7; |
| CONTEXT |= GBREG->getPixel(w, h - 2) << 8; |
| CONTEXT |= GBREG->getPixel(w - 1, h - 2) << 9; |
| break; |
| case 3: |
| CONTEXT |= GBREG->getPixel(w - 1, h); |
| CONTEXT |= GBREG->getPixel(w - 2, h) << 1; |
| CONTEXT |= GBREG->getPixel(w - 3, h) << 2; |
| CONTEXT |= GBREG->getPixel(w - 4, h) << 3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4; |
| CONTEXT |= GBREG->getPixel(w + 1, h - 1) << 5; |
| CONTEXT |= GBREG->getPixel(w, h - 1) << 6; |
| CONTEXT |= GBREG->getPixel(w - 1, h - 1) << 7; |
| CONTEXT |= GBREG->getPixel(w - 2, h - 1) << 8; |
| CONTEXT |= GBREG->getPixel(w - 3, h - 1) << 9; |
| break; |
| } |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| GBREG->setPixel(w, h, bVal); |
| } |
| } |
| } |
| } |
| return GBREG; |
| } |
| CJBig2_Image *CJBig2_GRDProc::decode_MMR(CJBig2_BitStream *pStream) |
| { |
| int bitpos, i; |
| CJBig2_Image *pImage; |
| JBIG2_ALLOC(pImage, CJBig2_Image(GBW, GBH)); |
| if (pImage->m_pData == NULL) { |
| delete pImage; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| return NULL; |
| } |
| bitpos = (int)pStream->getBitPos(); |
| _FaxG4Decode(m_pModule, pStream->getBuf(), pStream->getLength(), &bitpos, pImage->m_pData, GBW, GBH, pImage->m_nStride); |
| pStream->setBitPos(bitpos); |
| for(i = 0; (FX_DWORD)i < pImage->m_nStride * GBH; i++) { |
| pImage->m_pData[i] = ~pImage->m_pData[i]; |
| } |
| return pImage; |
| } |
| CJBig2_Image *CJBig2_GRRDProc::decode(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) |
| { |
| if (GRW == 0 || GRH == 0) { |
| CJBig2_Image* pImage; |
| JBIG2_ALLOC(pImage, CJBig2_Image(GRW, GRH)); |
| return pImage; |
| } |
| if(GRTEMPLATE == 0) { |
| if((GRAT[0] == (signed char) - 1) && (GRAT[1] == (signed char) - 1) |
| && (GRAT[2] == (signed char) - 1) && (GRAT[3] == (signed char) - 1) |
| && (GRREFERENCEDX == 0) && (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { |
| return decode_Template0_opt(pArithDecoder, grContext); |
| } else { |
| return decode_Template0_unopt(pArithDecoder, grContext); |
| } |
| } else { |
| if((GRREFERENCEDX == 0) && (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { |
| return decode_Template1_opt(pArithDecoder, grContext); |
| } else { |
| return decode_Template1_unopt(pArithDecoder, grContext); |
| } |
| } |
| } |
| CJBig2_Image *CJBig2_GRRDProc::decode_Template0_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GRREG; |
| FX_DWORD line1, line2, line3, line4, line5; |
| LTP = 0; |
| JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); |
| GRREG->fill(0); |
| for(FX_DWORD h = 0; h < GRH; h++) { |
| if(TPGRON) { |
| SLTP = pArithDecoder->DECODE(&grContext[0x0010]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 0) { |
| line1 = GRREG->getPixel(1, h - 1); |
| line1 |= GRREG->getPixel(0, h - 1) << 1; |
| line2 = 0; |
| line3 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY - 1); |
| line3 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1) << 1; |
| line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); |
| line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; |
| line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; |
| line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); |
| line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; |
| line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; |
| for(FX_DWORD w = 0; w < GRW; w++) { |
| CONTEXT = line5; |
| CONTEXT |= line4 << 3; |
| CONTEXT |= line3 << 6; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; |
| CONTEXT |= line2 << 9; |
| CONTEXT |= line1 << 10; |
| CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| GRREG->setPixel(w, h, bVal); |
| line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x03; |
| line2 = ((line2 << 1) | bVal) & 0x01; |
| line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY - 1)) & 0x03; |
| line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; |
| line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x07; |
| } |
| } else { |
| line1 = GRREG->getPixel(1, h - 1); |
| line1 |= GRREG->getPixel(0, h - 1) << 1; |
| line2 = 0; |
| line3 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY - 1); |
| line3 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1) << 1; |
| line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); |
| line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; |
| line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; |
| line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); |
| line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; |
| line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; |
| for(FX_DWORD w = 0; w < GRW; w++) { |
| bVal = GRREFERENCE->getPixel(w, h); |
| if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w - 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h + 1)))) { |
| CONTEXT = line5; |
| CONTEXT |= line4 << 3; |
| CONTEXT |= line3 << 6; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; |
| CONTEXT |= line2 << 9; |
| CONTEXT |= line1 << 10; |
| CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| } |
| GRREG->setPixel(w, h, bVal); |
| line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x03; |
| line2 = ((line2 << 1) | bVal) & 0x01; |
| line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY - 1)) & 0x03; |
| line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; |
| line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x07; |
| } |
| } |
| } |
| return GRREG; |
| } |
| CJBig2_Image *CJBig2_GRRDProc::decode_Template0_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GRREG; |
| FX_DWORD line1, line1_r, line2_r, line3_r; |
| FX_BYTE *pLine, *pLineR, cVal; |
| FX_INTPTR nStride, nStrideR, nOffset; |
| FX_INT32 k, nBits; |
| FX_INT32 GRWR, GRHR; |
| FX_INT32 GRW, GRH; |
| GRW = (FX_INT32)CJBig2_GRRDProc::GRW; |
| GRH = (FX_INT32)CJBig2_GRRDProc::GRH; |
| LTP = 0; |
| JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); |
| if (GRREG->m_pData == NULL) { |
| delete GRREG; |
| m_pModule->JBig2_Error("Generic refinement region decoding procedure: Create Image Failed with width = %d, height = %d\n", GRW, GRH); |
| return NULL; |
| } |
| pLine = GRREG->m_pData; |
| pLineR = GRREFERENCE->m_pData; |
| nStride = GRREG->m_nStride; |
| nStrideR = GRREFERENCE->m_nStride; |
| GRWR = (FX_INT32)GRREFERENCE->m_nWidth; |
| GRHR = (FX_INT32)GRREFERENCE->m_nHeight; |
| if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { |
| GRREFERENCEDY = 0; |
| } |
| nOffset = -GRREFERENCEDY * nStrideR; |
| for (FX_INT32 h = 0; h < GRH; h++) { |
| if(TPGRON) { |
| SLTP = pArithDecoder->DECODE(&grContext[0x0010]); |
| LTP = LTP ^ SLTP; |
| } |
| line1 = (h > 0) ? pLine[-nStride] << 4 : 0; |
| FX_INT32 reference_h = h - GRREFERENCEDY; |
| FX_BOOL line1_r_ok = (reference_h > 0 && reference_h < GRHR + 1); |
| FX_BOOL line2_r_ok = (reference_h > -1 && reference_h < GRHR); |
| FX_BOOL line3_r_ok = (reference_h > -2 && reference_h < GRHR - 1); |
| line1_r = line1_r_ok ? pLineR[nOffset - nStrideR] : 0; |
| line2_r = line2_r_ok ? pLineR[nOffset] : 0; |
| line3_r = line3_r_ok ? pLineR[nOffset + nStrideR] : 0; |
| if(LTP == 0) { |
| CONTEXT = (line1 & 0x1c00) | (line1_r & 0x01c0) |
| | ((line2_r >> 3) & 0x0038) | ((line3_r >> 6) & 0x0007); |
| for (FX_INT32 w = 0; w < GRW; w += 8) { |
| nBits = GRW - w > 8 ? 8 : GRW - w; |
| if (h > 0) |
| line1 = (line1 << 8) | |
| (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 4 : 0); |
| if (h > GRHR + GRREFERENCEDY + 1) { |
| line1_r = 0; |
| line2_r = 0; |
| line3_r = 0; |
| } else { |
| if(line1_r_ok) |
| line1_r = (line1_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); |
| if(line2_r_ok) |
| line2_r = (line2_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); |
| if(line3_r_ok) |
| line3_r = (line3_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); |
| else { |
| line3_r = 0; |
| } |
| } |
| cVal = 0; |
| for (k = 0; k < nBits; k++) { |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x0cdb) << 1) | (bVal << 9) | |
| ((line1 >> (7 - k)) & 0x0400) | |
| ((line1_r >> (7 - k)) & 0x0040) | |
| ((line2_r >> (10 - k)) & 0x0008) | |
| ((line3_r >> (13 - k)) & 0x0001); |
| } |
| pLine[w >> 3] = cVal; |
| } |
| } else { |
| CONTEXT = (line1 & 0x1c00) | (line1_r & 0x01c0) |
| | ((line2_r >> 3) & 0x0038) | ((line3_r >> 6) & 0x0007); |
| for (FX_INT32 w = 0; w < GRW; w += 8) { |
| nBits = GRW - w > 8 ? 8 : GRW - w; |
| if (h > 0) |
| line1 = (line1 << 8) | |
| (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 4 : 0); |
| if(line1_r_ok) |
| line1_r = (line1_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); |
| if(line2_r_ok) |
| line2_r = (line2_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); |
| if(line3_r_ok) |
| line3_r = (line3_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); |
| else { |
| line3_r = 0; |
| } |
| cVal = 0; |
| for (k = 0; k < nBits; k++) { |
| bVal = GRREFERENCE->getPixel(w + k, h); |
| if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w + k - 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k + 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k - 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w + k + 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w + k - 1, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k + 1, h + 1)))) { |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| } |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x0cdb) << 1) | (bVal << 9) | |
| ((line1 >> (7 - k)) & 0x0400) | |
| ((line1_r >> (7 - k)) & 0x0040) | |
| ((line2_r >> (10 - k)) & 0x0008) | |
| ((line3_r >> (13 - k)) & 0x0001); |
| } |
| pLine[w >> 3] = cVal; |
| } |
| } |
| pLine += nStride; |
| if (h < GRHR + GRREFERENCEDY) { |
| pLineR += nStrideR; |
| } |
| } |
| return GRREG; |
| } |
| CJBig2_Image *CJBig2_GRRDProc::decode_Template1_unopt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GRREG; |
| FX_DWORD line1, line2, line3, line4, line5; |
| LTP = 0; |
| JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); |
| GRREG->fill(0); |
| for(FX_DWORD h = 0; h < GRH; h++) { |
| if(TPGRON) { |
| SLTP = pArithDecoder->DECODE(&grContext[0x0008]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 0) { |
| line1 = GRREG->getPixel(1, h - 1); |
| line1 |= GRREG->getPixel(0, h - 1) << 1; |
| line1 |= GRREG->getPixel(-1, h - 1) << 2; |
| line2 = 0; |
| line3 = GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1); |
| line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); |
| line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; |
| line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; |
| line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); |
| line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; |
| for(FX_DWORD w = 0; w < GRW; w++) { |
| CONTEXT = line5; |
| CONTEXT |= line4 << 2; |
| CONTEXT |= line3 << 5; |
| CONTEXT |= line2 << 6; |
| CONTEXT |= line1 << 7; |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| GRREG->setPixel(w, h, bVal); |
| line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x07; |
| line2 = ((line2 << 1) | bVal) & 0x01; |
| line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1)) & 0x01; |
| line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; |
| line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x03; |
| } |
| } else { |
| line1 = GRREG->getPixel(1, h - 1); |
| line1 |= GRREG->getPixel(0, h - 1) << 1; |
| line1 |= GRREG->getPixel(-1, h - 1) << 2; |
| line2 = 0; |
| line3 = GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY - 1); |
| line4 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY); |
| line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY) << 1; |
| line4 |= GRREFERENCE->getPixel(-GRREFERENCEDX - 1, h - GRREFERENCEDY) << 2; |
| line5 = GRREFERENCE->getPixel(-GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); |
| line5 |= GRREFERENCE->getPixel(-GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; |
| for(FX_DWORD w = 0; w < GRW; w++) { |
| bVal = GRREFERENCE->getPixel(w, h); |
| if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w - 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h + 1)))) { |
| CONTEXT = line5; |
| CONTEXT |= line4 << 2; |
| CONTEXT |= line3 << 5; |
| CONTEXT |= line2 << 6; |
| CONTEXT |= line1 << 7; |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| } |
| GRREG->setPixel(w, h, bVal); |
| line1 = ((line1 << 1) | GRREG->getPixel(w + 2, h - 1)) & 0x07; |
| line2 = ((line2 << 1) | bVal) & 0x01; |
| line3 = ((line3 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1)) & 0x01; |
| line4 = ((line4 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY)) & 0x07; |
| line5 = ((line5 << 1) | GRREFERENCE->getPixel(w - GRREFERENCEDX + 2, h - GRREFERENCEDY + 1)) & 0x03; |
| } |
| } |
| } |
| return GRREG; |
| } |
| CJBig2_Image *CJBig2_GRRDProc::decode_Template1_opt(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GRREG; |
| FX_DWORD line1, line1_r, line2_r, line3_r; |
| FX_BYTE *pLine, *pLineR, cVal; |
| FX_INTPTR nStride, nStrideR, nOffset; |
| FX_INT32 k, nBits; |
| FX_INT32 GRWR, GRHR; |
| FX_INT32 GRW, GRH; |
| GRW = (FX_INT32)CJBig2_GRRDProc::GRW; |
| GRH = (FX_INT32)CJBig2_GRRDProc::GRH; |
| LTP = 0; |
| JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); |
| if (GRREG->m_pData == NULL) { |
| delete GRREG; |
| m_pModule->JBig2_Error("Generic refinement region decoding procedure: Create Image Failed with width = %d, height = %d\n", GRW, GRH); |
| return NULL; |
| } |
| pLine = GRREG->m_pData; |
| pLineR = GRREFERENCE->m_pData; |
| nStride = GRREG->m_nStride; |
| nStrideR = GRREFERENCE->m_nStride; |
| GRWR = (FX_INT32)GRREFERENCE->m_nWidth; |
| GRHR = (FX_INT32)GRREFERENCE->m_nHeight; |
| if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { |
| GRREFERENCEDY = 0; |
| } |
| nOffset = -GRREFERENCEDY * nStrideR; |
| for (FX_INT32 h = 0; h < GRH; h++) { |
| if(TPGRON) { |
| SLTP = pArithDecoder->DECODE(&grContext[0x0008]); |
| LTP = LTP ^ SLTP; |
| } |
| line1 = (h > 0) ? pLine[-nStride] << 1 : 0; |
| FX_INT32 reference_h = h - GRREFERENCEDY; |
| FX_BOOL line1_r_ok = (reference_h > 0 && reference_h < GRHR + 1); |
| FX_BOOL line2_r_ok = (reference_h > -1 && reference_h < GRHR); |
| FX_BOOL line3_r_ok = (reference_h > -2 && reference_h < GRHR - 1); |
| line1_r = line1_r_ok ? pLineR[nOffset - nStrideR] : 0; |
| line2_r = line2_r_ok ? pLineR[nOffset] : 0; |
| line3_r = line3_r_ok ? pLineR[nOffset + nStrideR] : 0; |
| if(LTP == 0) { |
| CONTEXT = (line1 & 0x0380) | ((line1_r >> 2) & 0x0020) |
| | ((line2_r >> 4) & 0x001c) | ((line3_r >> 6) & 0x0003); |
| for (FX_INT32 w = 0; w < GRW; w += 8) { |
| nBits = GRW - w > 8 ? 8 : GRW - w; |
| if (h > 0) |
| line1 = (line1 << 8) | |
| (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 1 : 0); |
| if(line1_r_ok) |
| line1_r = (line1_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); |
| if(line2_r_ok) |
| line2_r = (line2_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); |
| if(line3_r_ok) |
| line3_r = (line3_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); |
| else { |
| line3_r = 0; |
| } |
| cVal = 0; |
| for (k = 0; k < nBits; k++) { |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x018d) << 1) | (bVal << 6) | |
| ((line1 >> (7 - k)) & 0x0080) | |
| ((line1_r >> (9 - k)) & 0x0020) | |
| ((line2_r >> (11 - k)) & 0x0004) | |
| ((line3_r >> (13 - k)) & 0x0001); |
| } |
| pLine[w >> 3] = cVal; |
| } |
| } else { |
| CONTEXT = (line1 & 0x0380) | ((line1_r >> 2) & 0x0020) |
| | ((line2_r >> 4) & 0x001c) | ((line3_r >> 6) & 0x0003); |
| for (FX_INT32 w = 0; w < GRW; w += 8) { |
| nBits = GRW - w > 8 ? 8 : GRW - w; |
| if (h > 0) |
| line1 = (line1 << 8) | |
| (w + 8 < GRW ? pLine[-nStride + (w >> 3) + 1] << 1 : 0); |
| if(line1_r_ok) |
| line1_r = (line1_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset - nStrideR + (w >> 3) + 1] : 0); |
| if(line2_r_ok) |
| line2_r = (line2_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset + (w >> 3) + 1] : 0); |
| if(line3_r_ok) |
| line3_r = (line3_r << 8) | |
| (w + 8 < GRWR ? pLineR[nOffset + nStrideR + (w >> 3) + 1] : 0); |
| else { |
| line3_r = 0; |
| } |
| cVal = 0; |
| for (k = 0; k < nBits; k++) { |
| bVal = GRREFERENCE->getPixel(w + k, h); |
| if(!(TPGRON && (bVal == GRREFERENCE->getPixel(w + k - 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k + 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k - 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w + k + 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w + k - 1, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w + k + 1, h + 1)))) { |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| } |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x018d) << 1) | (bVal << 6) | |
| ((line1 >> (7 - k)) & 0x0080) | |
| ((line1_r >> (9 - k)) & 0x0020) | |
| ((line2_r >> (11 - k)) & 0x0004) | |
| ((line3_r >> (13 - k)) & 0x0001); |
| } |
| pLine[w >> 3] = cVal; |
| } |
| } |
| pLine += nStride; |
| if (h < GRHR + GRREFERENCEDY) { |
| pLineR += nStrideR; |
| } |
| } |
| return GRREG; |
| } |
| CJBig2_Image *CJBig2_GRRDProc::decode_V1(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext) |
| { |
| FX_BOOL LTP, SLTP, bVal; |
| FX_BOOL TPGRPIX, TPGRVAL; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GRREG; |
| LTP = 0; |
| JBIG2_ALLOC(GRREG, CJBig2_Image(GRW, GRH)); |
| GRREG->fill(0); |
| for(FX_DWORD h = 0; h < GRH; h++) { |
| if(TPGRON) { |
| switch(GRTEMPLATE) { |
| case 0: |
| CONTEXT = 0x0010; |
| break; |
| case 1: |
| CONTEXT = 0x0008; |
| break; |
| } |
| SLTP = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 0) { |
| for(FX_DWORD w = 0; w < GRW; w++) { |
| CONTEXT = 0; |
| switch(GRTEMPLATE) { |
| case 0: |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 3; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 4; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 5; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1) << 6; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 7; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; |
| CONTEXT |= GRREG->getPixel(w - 1, h) << 9; |
| CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 10; |
| CONTEXT |= GRREG->getPixel(w, h - 1) << 11; |
| CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; |
| break; |
| case 1: |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 2; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 3; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 4; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 5; |
| CONTEXT |= GRREG->getPixel(w - 1, h) << 6; |
| CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 7; |
| CONTEXT |= GRREG->getPixel(w, h - 1) << 8; |
| CONTEXT |= GRREG->getPixel(w - 1, h - 1) << 9; |
| break; |
| } |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| GRREG->setPixel(w, h, bVal); |
| } |
| } else { |
| for(FX_DWORD w = 0; w < GRW; w++) { |
| bVal = GRREFERENCE->getPixel(w, h); |
| if(TPGRON && (bVal == GRREFERENCE->getPixel(w - 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h - 1)) |
| && (bVal == GRREFERENCE->getPixel(w - 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h)) |
| && (bVal == GRREFERENCE->getPixel(w - 1, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w, h + 1)) |
| && (bVal == GRREFERENCE->getPixel(w + 1, h + 1))) { |
| TPGRPIX = 1; |
| TPGRVAL = bVal; |
| } else { |
| TPGRPIX = 0; |
| } |
| if(TPGRPIX) { |
| GRREG->setPixel(w, h, TPGRVAL); |
| } else { |
| CONTEXT = 0; |
| switch(GRTEMPLATE) { |
| case 0: |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY + 1) << 2; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 3; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 4; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 5; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY - 1) << 6; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 7; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + GRAT[2], h - GRREFERENCEDY + GRAT[3]) << 8; |
| CONTEXT |= GRREG->getPixel(w - 1, h) << 9; |
| CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 10; |
| CONTEXT |= GRREG->getPixel(w, h - 1) << 11; |
| CONTEXT |= GRREG->getPixel(w + GRAT[0], h + GRAT[1]) << 12; |
| break; |
| case 1: |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY + 1); |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY + 1) << 1; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX + 1, h - GRREFERENCEDY) << 2; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY) << 3; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX - 1, h - GRREFERENCEDY) << 4; |
| CONTEXT |= GRREFERENCE->getPixel(w - GRREFERENCEDX, h - GRREFERENCEDY - 1) << 5; |
| CONTEXT |= GRREG->getPixel(w - 1, h) << 6; |
| CONTEXT |= GRREG->getPixel(w + 1, h - 1) << 7; |
| CONTEXT |= GRREG->getPixel(w, h - 1) << 8; |
| CONTEXT |= GRREG->getPixel(w - 1, h - 1) << 9; |
| break; |
| } |
| bVal = pArithDecoder->DECODE(&grContext[CONTEXT]); |
| GRREG->setPixel(w, h, bVal); |
| } |
| } |
| } |
| } |
| return GRREG; |
| } |
| CJBig2_Image *CJBig2_TRDProc::decode_Huffman(CJBig2_BitStream *pStream, JBig2ArithCtx *grContext) |
| { |
| FX_INT32 STRIPT, FIRSTS; |
| FX_DWORD NINSTANCES; |
| FX_INT32 DT, DFS, CURS; |
| FX_BYTE CURT; |
| FX_INT32 SI, TI; |
| FX_DWORD IDI; |
| CJBig2_Image *IBI; |
| FX_DWORD WI, HI; |
| FX_INT32 IDS; |
| FX_BOOL RI; |
| FX_INT32 RDWI, RDHI, RDXI, RDYI; |
| CJBig2_Image *IBOI; |
| FX_DWORD WOI, HOI; |
| CJBig2_Image *SBREG; |
| FX_BOOL bFirst; |
| FX_DWORD nTmp; |
| FX_INT32 nVal, nBits; |
| CJBig2_HuffmanDecoder *pHuffmanDecoder; |
| CJBig2_GRRDProc *pGRRD; |
| CJBig2_ArithDecoder *pArithDecoder; |
| JBIG2_ALLOC(pHuffmanDecoder, CJBig2_HuffmanDecoder(pStream)); |
| JBIG2_ALLOC(SBREG, CJBig2_Image(SBW, SBH)); |
| SBREG->fill(SBDEFPIXEL); |
| if(pHuffmanDecoder->decodeAValue(SBHUFFDT, &STRIPT) != 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| STRIPT *= SBSTRIPS; |
| STRIPT = -STRIPT; |
| FIRSTS = 0; |
| NINSTANCES = 0; |
| while(NINSTANCES < SBNUMINSTANCES) { |
| if(pHuffmanDecoder->decodeAValue(SBHUFFDT, &DT) != 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| DT *= SBSTRIPS; |
| STRIPT = STRIPT + DT; |
| bFirst = TRUE; |
| for(;;) { |
| if(bFirst) { |
| if(pHuffmanDecoder->decodeAValue(SBHUFFFS, &DFS) != 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| FIRSTS = FIRSTS + DFS; |
| CURS = FIRSTS; |
| bFirst = FALSE; |
| } else { |
| nVal = pHuffmanDecoder->decodeAValue(SBHUFFDS, &IDS); |
| if(nVal == JBIG2_OOB) { |
| break; |
| } else if(nVal != 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); |
| goto failed; |
| } else { |
| CURS = CURS + IDS + SBDSOFFSET; |
| } |
| } |
| if(SBSTRIPS == 1) { |
| CURT = 0; |
| } else { |
| nTmp = 1; |
| while((FX_DWORD)(1 << nTmp) < SBSTRIPS) { |
| nTmp ++; |
| } |
| if(pStream->readNBits(nTmp, &nVal) != 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| CURT = nVal; |
| } |
| TI = STRIPT + CURT; |
| nVal = 0; |
| nBits = 0; |
| for(;;) { |
| if(pStream->read1Bit(&nTmp) != 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| nVal = (nVal << 1) | nTmp; |
| nBits ++; |
| for(IDI = 0; IDI < SBNUMSYMS; IDI++) { |
| if((nBits == SBSYMCODES[IDI].codelen) && (nVal == SBSYMCODES[IDI].code)) { |
| break; |
| } |
| } |
| if(IDI < SBNUMSYMS) { |
| break; |
| } |
| } |
| if(SBREFINE == 0) { |
| RI = 0; |
| } else { |
| if(pStream->read1Bit(&RI) != 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| } |
| if(RI == 0) { |
| IBI = SBSYMS[IDI]; |
| } else { |
| if((pHuffmanDecoder->decodeAValue(SBHUFFRDW, &RDWI) != 0) |
| || (pHuffmanDecoder->decodeAValue(SBHUFFRDH, &RDHI) != 0) |
| || (pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDXI) != 0) |
| || (pHuffmanDecoder->decodeAValue(SBHUFFRDY, &RDYI) != 0) |
| || (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE, &nVal) != 0)) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| pStream->alignByte(); |
| nTmp = pStream->getOffset(); |
| IBOI = SBSYMS[IDI]; |
| if (!IBOI) { |
| goto failed; |
| } |
| WOI = IBOI->m_nWidth; |
| HOI = IBOI->m_nHeight; |
| if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (huffman): Invalid RDWI or RDHI value."); |
| goto failed; |
| } |
| JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); |
| pGRRD->GRW = WOI + RDWI; |
| pGRRD->GRH = HOI + RDHI; |
| pGRRD->GRTEMPLATE = SBRTEMPLATE; |
| pGRRD->GRREFERENCE = IBOI; |
| pGRRD->GRREFERENCEDX = (RDWI >> 2) + RDXI; |
| pGRRD->GRREFERENCEDY = (RDHI >> 2) + RDYI; |
| pGRRD->TPGRON = 0; |
| pGRRD->GRAT[0] = SBRAT[0]; |
| pGRRD->GRAT[1] = SBRAT[1]; |
| pGRRD->GRAT[2] = SBRAT[2]; |
| pGRRD->GRAT[3] = SBRAT[3]; |
| JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(pStream)); |
| IBI = pGRRD->decode(pArithDecoder, grContext); |
| if(IBI == NULL) { |
| delete pGRRD; |
| delete pArithDecoder; |
| goto failed; |
| } |
| delete pArithDecoder; |
| pStream->alignByte(); |
| pStream->offset(2); |
| if((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { |
| delete IBI; |
| delete pGRRD; |
| m_pModule->JBig2_Error("text region decoding procedure (huffman):" |
| "bytes processed by generic refinement region decoding procedure doesn't equal SBHUFFRSIZE."); |
| goto failed; |
| } |
| delete pGRRD; |
| } |
| if (!IBI) { |
| continue; |
| } |
| WI = IBI->m_nWidth; |
| HI = IBI->m_nHeight; |
| if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPRIGHT) |
| || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { |
| CURS = CURS + WI - 1; |
| } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_BOTTOMLEFT) |
| || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { |
| CURS = CURS + HI - 1; |
| } |
| SI = CURS; |
| if(TRANSPOSED == 0) { |
| switch(REFCORNER) { |
| case JBIG2_CORNER_TOPLEFT: |
| SBREG->composeFrom(SI, TI, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_TOPRIGHT: |
| SBREG->composeFrom(SI - WI + 1, TI, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_BOTTOMLEFT: |
| SBREG->composeFrom(SI, TI - HI + 1, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_BOTTOMRIGHT: |
| SBREG->composeFrom(SI - WI + 1, TI - HI + 1, IBI, SBCOMBOP); |
| break; |
| } |
| } else { |
| switch(REFCORNER) { |
| case JBIG2_CORNER_TOPLEFT: |
| SBREG->composeFrom(TI, SI, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_TOPRIGHT: |
| SBREG->composeFrom(TI - WI + 1, SI, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_BOTTOMLEFT: |
| SBREG->composeFrom(TI, SI - HI + 1, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_BOTTOMRIGHT: |
| SBREG->composeFrom(TI - WI + 1, SI - HI + 1, IBI, SBCOMBOP); |
| break; |
| } |
| } |
| if(RI != 0) { |
| delete IBI; |
| } |
| if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) |
| || (REFCORNER == JBIG2_CORNER_BOTTOMLEFT))) { |
| CURS = CURS + WI - 1; |
| } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) |
| || (REFCORNER == JBIG2_CORNER_TOPRIGHT))) { |
| CURS = CURS + HI - 1; |
| } |
| NINSTANCES = NINSTANCES + 1; |
| } |
| } |
| delete pHuffmanDecoder; |
| return SBREG; |
| failed: |
| delete pHuffmanDecoder; |
| delete SBREG; |
| return NULL; |
| } |
| CJBig2_Image *CJBig2_TRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *grContext, |
| JBig2IntDecoderState *pIDS) |
| { |
| FX_INT32 STRIPT, FIRSTS; |
| FX_DWORD NINSTANCES; |
| FX_INT32 DT, DFS, CURS; |
| FX_INT32 CURT; |
| FX_INT32 SI, TI; |
| FX_DWORD IDI; |
| CJBig2_Image *IBI; |
| FX_DWORD WI, HI; |
| FX_INT32 IDS; |
| FX_BOOL RI; |
| FX_INT32 RDWI, RDHI, RDXI, RDYI; |
| CJBig2_Image *IBOI; |
| FX_DWORD WOI, HOI; |
| CJBig2_Image *SBREG; |
| FX_BOOL bFirst; |
| FX_INT32 nRet, nVal; |
| FX_INT32 bRetained; |
| CJBig2_ArithIntDecoder *IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH, *IARDX, *IARDY; |
| CJBig2_ArithIaidDecoder *IAID; |
| CJBig2_GRRDProc *pGRRD; |
| if(pIDS) { |
| IADT = pIDS->IADT; |
| IAFS = pIDS->IAFS; |
| IADS = pIDS->IADS; |
| IAIT = pIDS->IAIT; |
| IARI = pIDS->IARI; |
| IARDW = pIDS->IARDW; |
| IARDH = pIDS->IARDH; |
| IARDX = pIDS->IARDX; |
| IARDY = pIDS->IARDY; |
| IAID = pIDS->IAID; |
| bRetained = TRUE; |
| } else { |
| JBIG2_ALLOC(IADT, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IAFS, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IADS, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IAIT, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARI, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARDW, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARDH, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARDX, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARDY, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IAID , CJBig2_ArithIaidDecoder(SBSYMCODELEN)); |
| bRetained = FALSE; |
| } |
| JBIG2_ALLOC(SBREG, CJBig2_Image(SBW, SBH)); |
| SBREG->fill(SBDEFPIXEL); |
| if(IADT->decode(pArithDecoder, &STRIPT) == -1) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); |
| goto failed; |
| } |
| STRIPT *= SBSTRIPS; |
| STRIPT = -STRIPT; |
| FIRSTS = 0; |
| NINSTANCES = 0; |
| while(NINSTANCES < SBNUMINSTANCES) { |
| if(IADT->decode(pArithDecoder, &DT) == -1) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); |
| goto failed; |
| } |
| DT *= SBSTRIPS; |
| STRIPT = STRIPT + DT; |
| bFirst = TRUE; |
| for(;;) { |
| if(bFirst) { |
| if(IAFS->decode(pArithDecoder, &DFS) == -1) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); |
| goto failed; |
| } |
| FIRSTS = FIRSTS + DFS; |
| CURS = FIRSTS; |
| bFirst = FALSE; |
| } else { |
| nRet = IADS->decode(pArithDecoder, &IDS); |
| if(nRet == JBIG2_OOB) { |
| break; |
| } else if(nRet != 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); |
| goto failed; |
| } else { |
| CURS = CURS + IDS + SBDSOFFSET; |
| } |
| } |
| if (NINSTANCES >= SBNUMINSTANCES) { |
| break; |
| } |
| if(SBSTRIPS == 1) { |
| CURT = 0; |
| } else { |
| if(IAIT->decode(pArithDecoder, &nVal) == -1) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); |
| goto failed; |
| } |
| CURT = nVal; |
| } |
| TI = STRIPT + CURT; |
| if(IAID->decode(pArithDecoder, &nVal) == -1) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); |
| goto failed; |
| } |
| IDI = nVal; |
| if(IDI >= SBNUMSYMS) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): symbol id out of range.(%d/%d)", |
| IDI, SBNUMSYMS); |
| goto failed; |
| } |
| if(SBREFINE == 0) { |
| RI = 0; |
| } else { |
| if(IARI->decode(pArithDecoder, &RI) == -1) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); |
| goto failed; |
| } |
| } |
| if (!SBSYMS[IDI]) { |
| goto failed; |
| } |
| if(RI == 0) { |
| IBI = SBSYMS[IDI]; |
| } else { |
| if((IARDW->decode(pArithDecoder, &RDWI) == -1) |
| || (IARDH->decode(pArithDecoder, &RDHI) == -1) |
| || (IARDX->decode(pArithDecoder, &RDXI) == -1) |
| || (IARDY->decode(pArithDecoder, &RDYI) == -1)) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): too short."); |
| goto failed; |
| } |
| IBOI = SBSYMS[IDI]; |
| WOI = IBOI->m_nWidth; |
| HOI = IBOI->m_nHeight; |
| if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) { |
| m_pModule->JBig2_Error("text region decoding procedure (arith): Invalid RDWI or RDHI value."); |
| goto failed; |
| } |
| JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); |
| pGRRD->GRW = WOI + RDWI; |
| pGRRD->GRH = HOI + RDHI; |
| pGRRD->GRTEMPLATE = SBRTEMPLATE; |
| pGRRD->GRREFERENCE = IBOI; |
| pGRRD->GRREFERENCEDX = (RDWI >> 1) + RDXI; |
| pGRRD->GRREFERENCEDY = (RDHI >> 1) + RDYI; |
| pGRRD->TPGRON = 0; |
| pGRRD->GRAT[0] = SBRAT[0]; |
| pGRRD->GRAT[1] = SBRAT[1]; |
| pGRRD->GRAT[2] = SBRAT[2]; |
| pGRRD->GRAT[3] = SBRAT[3]; |
| IBI = pGRRD->decode(pArithDecoder, grContext); |
| if(IBI == NULL) { |
| delete pGRRD; |
| goto failed; |
| } |
| delete pGRRD; |
| } |
| WI = IBI->m_nWidth; |
| HI = IBI->m_nHeight; |
| if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPRIGHT) |
| || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { |
| CURS = CURS + WI - 1; |
| } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_BOTTOMLEFT) |
| || (REFCORNER == JBIG2_CORNER_BOTTOMRIGHT))) { |
| CURS = CURS + HI - 1; |
| } |
| SI = CURS; |
| if(TRANSPOSED == 0) { |
| switch(REFCORNER) { |
| case JBIG2_CORNER_TOPLEFT: |
| SBREG->composeFrom(SI, TI, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_TOPRIGHT: |
| SBREG->composeFrom(SI - WI + 1, TI, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_BOTTOMLEFT: |
| SBREG->composeFrom(SI, TI - HI + 1, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_BOTTOMRIGHT: |
| SBREG->composeFrom(SI - WI + 1, TI - HI + 1, IBI, SBCOMBOP); |
| break; |
| } |
| } else { |
| switch(REFCORNER) { |
| case JBIG2_CORNER_TOPLEFT: |
| SBREG->composeFrom(TI, SI, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_TOPRIGHT: |
| SBREG->composeFrom(TI - WI + 1, SI, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_BOTTOMLEFT: |
| SBREG->composeFrom(TI, SI - HI + 1, IBI, SBCOMBOP); |
| break; |
| case JBIG2_CORNER_BOTTOMRIGHT: |
| SBREG->composeFrom(TI - WI + 1, SI - HI + 1, IBI, SBCOMBOP); |
| break; |
| } |
| } |
| if(RI != 0) { |
| delete IBI; |
| } |
| if(TRANSPOSED == 0 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) |
| || (REFCORNER == JBIG2_CORNER_BOTTOMLEFT))) { |
| CURS = CURS + WI - 1; |
| } else if(TRANSPOSED == 1 && ((REFCORNER == JBIG2_CORNER_TOPLEFT) |
| || (REFCORNER == JBIG2_CORNER_TOPRIGHT))) { |
| CURS = CURS + HI - 1; |
| } |
| NINSTANCES = NINSTANCES + 1; |
| } |
| } |
| if(bRetained == FALSE) { |
| delete IADT; |
| delete IAFS; |
| delete IADS; |
| delete IAIT; |
| delete IARI; |
| delete IARDW; |
| delete IARDH; |
| delete IARDX; |
| delete IARDY; |
| delete IAID; |
| } |
| return SBREG; |
| failed: |
| if(bRetained == FALSE) { |
| delete IADT; |
| delete IAFS; |
| delete IADS; |
| delete IAIT; |
| delete IARI; |
| delete IARDW; |
| delete IARDH; |
| delete IARDX; |
| delete IARDY; |
| delete IAID; |
| } |
| delete SBREG; |
| return NULL; |
| } |
| CJBig2_SymbolDict *CJBig2_SDDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, |
| JBig2ArithCtx *gbContext, JBig2ArithCtx *grContext) |
| { |
| CJBig2_Image **SDNEWSYMS; |
| FX_DWORD HCHEIGHT, NSYMSDECODED; |
| FX_INT32 HCDH; |
| FX_DWORD SYMWIDTH, TOTWIDTH, HCFIRSTSYM; |
| FX_INT32 DW; |
| CJBig2_Image *BS; |
| FX_DWORD I, J, REFAGGNINST; |
| FX_BOOL *EXFLAGS; |
| FX_DWORD EXINDEX; |
| FX_BOOL CUREXFLAG; |
| FX_DWORD EXRUNLENGTH; |
| FX_INT32 nVal; |
| FX_DWORD nTmp; |
| FX_BOOL SBHUFF; |
| FX_DWORD SBNUMSYMS; |
| FX_BYTE SBSYMCODELEN; |
| FX_DWORD IDI; |
| FX_INT32 RDXI, RDYI; |
| CJBig2_Image **SBSYMS; |
| CJBig2_HuffmanTable *SBHUFFFS, *SBHUFFDS, *SBHUFFDT, *SBHUFFRDW, *SBHUFFRDH, *SBHUFFRDX, *SBHUFFRDY, |
| *SBHUFFRSIZE; |
| CJBig2_GRRDProc *pGRRD; |
| CJBig2_GRDProc *pGRD; |
| CJBig2_ArithIntDecoder *IADH, *IADW, *IAAI, *IARDX, *IARDY, *IAEX, |
| *IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH; |
| CJBig2_ArithIaidDecoder *IAID; |
| CJBig2_SymbolDict *pDict; |
| JBIG2_ALLOC(IADH, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IADW, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IAAI, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARDX, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARDY, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IAEX, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IADT, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IAFS, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IADS, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IAIT, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARI, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARDW, CJBig2_ArithIntDecoder()); |
| JBIG2_ALLOC(IARDH, CJBig2_ArithIntDecoder()); |
| nTmp = 0; |
| while((FX_DWORD)(1 << nTmp) < (SDNUMINSYMS + SDNUMNEWSYMS)) { |
| nTmp ++; |
| } |
| JBIG2_ALLOC(IAID, CJBig2_ArithIaidDecoder((FX_BYTE)nTmp)); |
| SDNEWSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(CJBig2_Image*)); |
| FXSYS_memset32(SDNEWSYMS, 0 , SDNUMNEWSYMS * sizeof(CJBig2_Image*)); |
| HCHEIGHT = 0; |
| NSYMSDECODED = 0; |
| while(NSYMSDECODED < SDNUMNEWSYMS) { |
| BS = NULL; |
| if(IADH->decode(pArithDecoder, &HCDH) == -1) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); |
| goto failed; |
| } |
| HCHEIGHT = HCHEIGHT + HCDH; |
| if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): invalid HCHEIGHT value."); |
| goto failed; |
| } |
| SYMWIDTH = 0; |
| TOTWIDTH = 0; |
| HCFIRSTSYM = NSYMSDECODED; |
| for(;;) { |
| nVal = IADW->decode(pArithDecoder, &DW); |
| if(nVal == JBIG2_OOB) { |
| break; |
| } else if(nVal != 0) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); |
| goto failed; |
| } else { |
| if (NSYMSDECODED >= SDNUMNEWSYMS) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): NSYMSDECODED >= SDNUMNEWSYMS."); |
| goto failed; |
| } |
| SYMWIDTH = SYMWIDTH + DW; |
| if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): invalid SYMWIDTH value."); |
| goto failed; |
| } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { |
| TOTWIDTH = TOTWIDTH + SYMWIDTH; |
| SDNEWSYMS[NSYMSDECODED] = NULL; |
| NSYMSDECODED = NSYMSDECODED + 1; |
| continue; |
| } |
| TOTWIDTH = TOTWIDTH + SYMWIDTH; |
| } |
| if(SDREFAGG == 0) { |
| JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); |
| pGRD->MMR = 0; |
| pGRD->GBW = SYMWIDTH; |
| pGRD->GBH = HCHEIGHT; |
| pGRD->GBTEMPLATE = SDTEMPLATE; |
| pGRD->TPGDON = 0; |
| pGRD->USESKIP = 0; |
| pGRD->GBAT[0] = SDAT[0]; |
| pGRD->GBAT[1] = SDAT[1]; |
| pGRD->GBAT[2] = SDAT[2]; |
| pGRD->GBAT[3] = SDAT[3]; |
| pGRD->GBAT[4] = SDAT[4]; |
| pGRD->GBAT[5] = SDAT[5]; |
| pGRD->GBAT[6] = SDAT[6]; |
| pGRD->GBAT[7] = SDAT[7]; |
| BS = pGRD->decode_Arith(pArithDecoder, gbContext); |
| if(BS == NULL) { |
| delete pGRD; |
| goto failed; |
| } |
| delete pGRD; |
| } else { |
| if(IAAI->decode(pArithDecoder, (int*)&REFAGGNINST) == -1) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); |
| goto failed; |
| } |
| if(REFAGGNINST > 1) { |
| CJBig2_TRDProc *pDecoder; |
| JBIG2_ALLOC(pDecoder, CJBig2_TRDProc()); |
| pDecoder->SBHUFF = SDHUFF; |
| pDecoder->SBREFINE = 1; |
| pDecoder->SBW = SYMWIDTH; |
| pDecoder->SBH = HCHEIGHT; |
| pDecoder->SBNUMINSTANCES = REFAGGNINST; |
| pDecoder->SBSTRIPS = 1; |
| pDecoder->SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; |
| SBNUMSYMS = pDecoder->SBNUMSYMS; |
| nTmp = 0; |
| while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { |
| nTmp ++; |
| } |
| SBSYMCODELEN = (FX_BYTE)nTmp; |
| pDecoder->SBSYMCODELEN = SBSYMCODELEN; |
| SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); |
| JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); |
| JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); |
| pDecoder->SBSYMS = SBSYMS; |
| pDecoder->SBDEFPIXEL = 0; |
| pDecoder->SBCOMBOP = JBIG2_COMPOSE_OR; |
| pDecoder->TRANSPOSED = 0; |
| pDecoder->REFCORNER = JBIG2_CORNER_TOPLEFT; |
| pDecoder->SBDSOFFSET = 0; |
| JBIG2_ALLOC(SBHUFFFS, CJBig2_HuffmanTable(HuffmanTable_B6, |
| sizeof(HuffmanTable_B6) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B6)); |
| JBIG2_ALLOC(SBHUFFDS, CJBig2_HuffmanTable(HuffmanTable_B8, |
| sizeof(HuffmanTable_B8) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B8)); |
| JBIG2_ALLOC(SBHUFFDT, CJBig2_HuffmanTable(HuffmanTable_B11, |
| sizeof(HuffmanTable_B11) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B11)); |
| JBIG2_ALLOC(SBHUFFRDW, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRDH, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRDY, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, |
| sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); |
| pDecoder->SBHUFFFS = SBHUFFFS; |
| pDecoder->SBHUFFDS = SBHUFFDS; |
| pDecoder->SBHUFFDT = SBHUFFDT; |
| pDecoder->SBHUFFRDW = SBHUFFRDW; |
| pDecoder->SBHUFFRDH = SBHUFFRDH; |
| pDecoder->SBHUFFRDX = SBHUFFRDX; |
| pDecoder->SBHUFFRDY = SBHUFFRDY; |
| pDecoder->SBHUFFRSIZE = SBHUFFRSIZE; |
| pDecoder->SBRTEMPLATE = SDRTEMPLATE; |
| pDecoder->SBRAT[0] = SDRAT[0]; |
| pDecoder->SBRAT[1] = SDRAT[1]; |
| pDecoder->SBRAT[2] = SDRAT[2]; |
| pDecoder->SBRAT[3] = SDRAT[3]; |
| JBig2IntDecoderState ids; |
| ids.IADT = IADT; |
| ids.IAFS = IAFS; |
| ids.IADS = IADS; |
| ids.IAIT = IAIT; |
| ids.IARI = IARI; |
| ids.IARDW = IARDW; |
| ids.IARDH = IARDH; |
| ids.IARDX = IARDX; |
| ids.IARDY = IARDY; |
| ids.IAID = IAID; |
| BS = pDecoder->decode_Arith(pArithDecoder, grContext, &ids); |
| if(BS == NULL) { |
| m_pModule->JBig2_Free(SBSYMS); |
| delete SBHUFFFS; |
| delete SBHUFFDS; |
| delete SBHUFFDT; |
| delete SBHUFFRDW; |
| delete SBHUFFRDH; |
| delete SBHUFFRDX; |
| delete SBHUFFRDY; |
| delete SBHUFFRSIZE; |
| delete pDecoder; |
| goto failed; |
| } |
| m_pModule->JBig2_Free(SBSYMS); |
| delete SBHUFFFS; |
| delete SBHUFFDS; |
| delete SBHUFFDT; |
| delete SBHUFFRDW; |
| delete SBHUFFRDH; |
| delete SBHUFFRDX; |
| delete SBHUFFRDY; |
| delete SBHUFFRSIZE; |
| delete pDecoder; |
| } else if(REFAGGNINST == 1) { |
| SBHUFF = SDHUFF; |
| SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; |
| if(IAID->decode(pArithDecoder, (int*)&IDI) == -1) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); |
| goto failed; |
| } |
| if((IARDX->decode(pArithDecoder, &RDXI) == -1) |
| || (IARDY->decode(pArithDecoder, &RDYI) == -1)) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); |
| goto failed; |
| } |
| if (IDI >= SBNUMSYMS) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith):" |
| " refinement references unknown symbol %d", IDI); |
| goto failed; |
| } |
| SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); |
| JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); |
| JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); |
| if (!SBSYMS[IDI]) { |
| m_pModule->JBig2_Free(SBSYMS); |
| goto failed; |
| } |
| JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); |
| pGRRD->GRW = SYMWIDTH; |
| pGRRD->GRH = HCHEIGHT; |
| pGRRD->GRTEMPLATE = SDRTEMPLATE; |
| pGRRD->GRREFERENCE = SBSYMS[IDI]; |
| pGRRD->GRREFERENCEDX = RDXI; |
| pGRRD->GRREFERENCEDY = RDYI; |
| pGRRD->TPGRON = 0; |
| pGRRD->GRAT[0] = SDRAT[0]; |
| pGRRD->GRAT[1] = SDRAT[1]; |
| pGRRD->GRAT[2] = SDRAT[2]; |
| pGRRD->GRAT[3] = SDRAT[3]; |
| BS = pGRRD->decode(pArithDecoder, grContext); |
| if(BS == NULL) { |
| m_pModule->JBig2_Free(SBSYMS); |
| delete pGRRD; |
| goto failed; |
| } |
| m_pModule->JBig2_Free(SBSYMS); |
| delete pGRRD; |
| } |
| } |
| SDNEWSYMS[NSYMSDECODED] = BS; |
| BS = NULL; |
| NSYMSDECODED = NSYMSDECODED + 1; |
| } |
| } |
| EXINDEX = 0; |
| CUREXFLAG = 0; |
| EXFLAGS = (FX_BOOL*)m_pModule->JBig2_Malloc2(sizeof(FX_BOOL), (SDNUMINSYMS + SDNUMNEWSYMS)); |
| while(EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { |
| if(IAEX->decode(pArithDecoder, (int*)&EXRUNLENGTH) == -1) { |
| m_pModule->JBig2_Free(EXFLAGS); |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): too short."); |
| goto failed; |
| } |
| if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { |
| m_pModule->JBig2_Free(EXFLAGS); |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): Invalid EXRUNLENGTH value."); |
| goto failed; |
| } |
| if(EXRUNLENGTH != 0) { |
| for(I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { |
| EXFLAGS[I] = CUREXFLAG; |
| } |
| } |
| EXINDEX = EXINDEX + EXRUNLENGTH; |
| CUREXFLAG = !CUREXFLAG; |
| } |
| JBIG2_ALLOC(pDict, CJBig2_SymbolDict()); |
| pDict->SDNUMEXSYMS = SDNUMEXSYMS; |
| pDict->SDEXSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), SDNUMEXSYMS); |
| I = J = 0; |
| for(I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { |
| if(EXFLAGS[I] && J < SDNUMEXSYMS) { |
| if(I < SDNUMINSYMS) { |
| JBIG2_ALLOC(pDict->SDEXSYMS[J], CJBig2_Image(*SDINSYMS[I])); |
| } else { |
| pDict->SDEXSYMS[J] = SDNEWSYMS[I - SDNUMINSYMS]; |
| } |
| J = J + 1; |
| } else if (!EXFLAGS[I] && I >= SDNUMINSYMS) { |
| delete SDNEWSYMS[I - SDNUMINSYMS]; |
| } |
| } |
| if (J < SDNUMEXSYMS) { |
| pDict->SDNUMEXSYMS = J; |
| } |
| m_pModule->JBig2_Free(EXFLAGS); |
| m_pModule->JBig2_Free(SDNEWSYMS); |
| delete IADH; |
| delete IADW; |
| delete IAAI; |
| delete IARDX; |
| delete IARDY; |
| delete IAEX; |
| delete IAID; |
| delete IADT; |
| delete IAFS; |
| delete IADS; |
| delete IAIT; |
| delete IARI; |
| delete IARDW; |
| delete IARDH; |
| return pDict; |
| failed: |
| for(I = 0; I < NSYMSDECODED; I++) { |
| if (SDNEWSYMS[I]) { |
| delete SDNEWSYMS[I]; |
| SDNEWSYMS[I] = NULL; |
| } |
| } |
| m_pModule->JBig2_Free(SDNEWSYMS); |
| delete IADH; |
| delete IADW; |
| delete IAAI; |
| delete IARDX; |
| delete IARDY; |
| delete IAEX; |
| delete IAID; |
| delete IADT; |
| delete IAFS; |
| delete IADS; |
| delete IAIT; |
| delete IARI; |
| delete IARDW; |
| delete IARDH; |
| return NULL; |
| } |
| CJBig2_SymbolDict *CJBig2_SDDProc::decode_Huffman(CJBig2_BitStream *pStream, |
| JBig2ArithCtx *gbContext, JBig2ArithCtx *grContext, IFX_Pause* pPause) |
| { |
| CJBig2_Image **SDNEWSYMS; |
| FX_DWORD *SDNEWSYMWIDTHS; |
| FX_DWORD HCHEIGHT, NSYMSDECODED; |
| FX_INT32 HCDH; |
| FX_DWORD SYMWIDTH, TOTWIDTH, HCFIRSTSYM; |
| FX_INT32 DW; |
| CJBig2_Image *BS, *BHC; |
| FX_DWORD I, J, REFAGGNINST; |
| FX_BOOL *EXFLAGS; |
| FX_DWORD EXINDEX; |
| FX_BOOL CUREXFLAG; |
| FX_DWORD EXRUNLENGTH; |
| FX_INT32 nVal, nBits; |
| FX_DWORD nTmp; |
| FX_BOOL SBHUFF; |
| FX_DWORD SBNUMSYMS; |
| FX_BYTE SBSYMCODELEN; |
| JBig2HuffmanCode *SBSYMCODES; |
| FX_DWORD IDI; |
| FX_INT32 RDXI, RDYI; |
| FX_DWORD BMSIZE; |
| FX_DWORD stride; |
| CJBig2_Image **SBSYMS; |
| CJBig2_HuffmanTable *SBHUFFFS, *SBHUFFDS, *SBHUFFDT, *SBHUFFRDW, *SBHUFFRDH, *SBHUFFRDX, *SBHUFFRDY, |
| *SBHUFFRSIZE, *pTable; |
| CJBig2_HuffmanDecoder *pHuffmanDecoder; |
| CJBig2_GRRDProc *pGRRD; |
| CJBig2_ArithDecoder *pArithDecoder; |
| CJBig2_GRDProc *pGRD; |
| CJBig2_SymbolDict *pDict; |
| JBIG2_ALLOC(pHuffmanDecoder, CJBig2_HuffmanDecoder(pStream)); |
| SDNEWSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(CJBig2_Image*)); |
| FXSYS_memset32(SDNEWSYMS, 0 , SDNUMNEWSYMS * sizeof(CJBig2_Image*)); |
| SDNEWSYMWIDTHS = NULL; |
| BHC = NULL; |
| if(SDREFAGG == 0) { |
| SDNEWSYMWIDTHS = (FX_DWORD *)m_pModule->JBig2_Malloc2(SDNUMNEWSYMS, sizeof(FX_DWORD)); |
| FXSYS_memset32(SDNEWSYMWIDTHS, 0 , SDNUMNEWSYMS * sizeof(FX_DWORD)); |
| } |
| HCHEIGHT = 0; |
| NSYMSDECODED = 0; |
| BS = NULL; |
| while(NSYMSDECODED < SDNUMNEWSYMS) { |
| if(pHuffmanDecoder->decodeAValue(SDHUFFDH, &HCDH) != 0) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| HCHEIGHT = HCHEIGHT + HCDH; |
| if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): invalid HCHEIGHT value."); |
| goto failed; |
| } |
| SYMWIDTH = 0; |
| TOTWIDTH = 0; |
| HCFIRSTSYM = NSYMSDECODED; |
| for(;;) { |
| nVal = pHuffmanDecoder->decodeAValue(SDHUFFDW, &DW); |
| if(nVal == JBIG2_OOB) { |
| break; |
| } else if(nVal != 0) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); |
| goto failed; |
| } else { |
| if (NSYMSDECODED >= SDNUMNEWSYMS) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): NSYMSDECODED >= SDNUMNEWSYMS."); |
| goto failed; |
| } |
| SYMWIDTH = SYMWIDTH + DW; |
| if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): invalid SYMWIDTH value."); |
| goto failed; |
| } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { |
| TOTWIDTH = TOTWIDTH + SYMWIDTH; |
| SDNEWSYMS[NSYMSDECODED] = NULL; |
| NSYMSDECODED = NSYMSDECODED + 1; |
| continue; |
| } |
| TOTWIDTH = TOTWIDTH + SYMWIDTH; |
| } |
| if(SDREFAGG == 1) { |
| if(pHuffmanDecoder->decodeAValue(SDHUFFAGGINST, (int*)&REFAGGNINST) != 0) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| BS = NULL; |
| if(REFAGGNINST > 1) { |
| CJBig2_TRDProc *pDecoder; |
| JBIG2_ALLOC(pDecoder, CJBig2_TRDProc()); |
| pDecoder->SBHUFF = SDHUFF; |
| pDecoder->SBREFINE = 1; |
| pDecoder->SBW = SYMWIDTH; |
| pDecoder->SBH = HCHEIGHT; |
| pDecoder->SBNUMINSTANCES = REFAGGNINST; |
| pDecoder->SBSTRIPS = 1; |
| pDecoder->SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; |
| SBNUMSYMS = pDecoder->SBNUMSYMS; |
| SBSYMCODES = (JBig2HuffmanCode*)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(JBig2HuffmanCode)); |
| nTmp = 1; |
| while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { |
| nTmp ++; |
| } |
| for(I = 0; I < SBNUMSYMS; I++) { |
| SBSYMCODES[I].codelen = nTmp; |
| SBSYMCODES[I].code = I; |
| } |
| pDecoder->SBSYMCODES = SBSYMCODES; |
| SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); |
| JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); |
| JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); |
| pDecoder->SBSYMS = SBSYMS; |
| pDecoder->SBDEFPIXEL = 0; |
| pDecoder->SBCOMBOP = JBIG2_COMPOSE_OR; |
| pDecoder->TRANSPOSED = 0; |
| pDecoder->REFCORNER = JBIG2_CORNER_TOPLEFT; |
| pDecoder->SBDSOFFSET = 0; |
| JBIG2_ALLOC(SBHUFFFS, CJBig2_HuffmanTable(HuffmanTable_B6, |
| sizeof(HuffmanTable_B6) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B6)); |
| JBIG2_ALLOC(SBHUFFDS, CJBig2_HuffmanTable(HuffmanTable_B8, |
| sizeof(HuffmanTable_B8) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B8)); |
| JBIG2_ALLOC(SBHUFFDT, CJBig2_HuffmanTable(HuffmanTable_B11, |
| sizeof(HuffmanTable_B11) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B11)); |
| JBIG2_ALLOC(SBHUFFRDW, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRDH, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRDY, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, |
| sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); |
| pDecoder->SBHUFFFS = SBHUFFFS; |
| pDecoder->SBHUFFDS = SBHUFFDS; |
| pDecoder->SBHUFFDT = SBHUFFDT; |
| pDecoder->SBHUFFRDW = SBHUFFRDW; |
| pDecoder->SBHUFFRDH = SBHUFFRDH; |
| pDecoder->SBHUFFRDX = SBHUFFRDX; |
| pDecoder->SBHUFFRDY = SBHUFFRDY; |
| pDecoder->SBHUFFRSIZE = SBHUFFRSIZE; |
| pDecoder->SBRTEMPLATE = SDRTEMPLATE; |
| pDecoder->SBRAT[0] = SDRAT[0]; |
| pDecoder->SBRAT[1] = SDRAT[1]; |
| pDecoder->SBRAT[2] = SDRAT[2]; |
| pDecoder->SBRAT[3] = SDRAT[3]; |
| BS = pDecoder->decode_Huffman(pStream, grContext); |
| if(BS == NULL) { |
| m_pModule->JBig2_Free(SBSYMCODES); |
| m_pModule->JBig2_Free(SBSYMS); |
| delete SBHUFFFS; |
| delete SBHUFFDS; |
| delete SBHUFFDT; |
| delete SBHUFFRDW; |
| delete SBHUFFRDH; |
| delete SBHUFFRDX; |
| delete SBHUFFRDY; |
| delete SBHUFFRSIZE; |
| delete pDecoder; |
| goto failed; |
| } |
| m_pModule->JBig2_Free(SBSYMCODES); |
| m_pModule->JBig2_Free(SBSYMS); |
| delete SBHUFFFS; |
| delete SBHUFFDS; |
| delete SBHUFFDT; |
| delete SBHUFFRDW; |
| delete SBHUFFRDH; |
| delete SBHUFFRDX; |
| delete SBHUFFRDY; |
| delete SBHUFFRSIZE; |
| delete pDecoder; |
| } else if(REFAGGNINST == 1) { |
| SBHUFF = SDHUFF; |
| SBNUMSYMS = SDNUMINSYMS + SDNUMNEWSYMS; |
| nTmp = 1; |
| while((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { |
| nTmp ++; |
| } |
| SBSYMCODELEN = (FX_BYTE)nTmp; |
| SBSYMCODES = (JBig2HuffmanCode*)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(JBig2HuffmanCode)); |
| for(I = 0; I < SBNUMSYMS; I++) { |
| SBSYMCODES[I].codelen = SBSYMCODELEN; |
| SBSYMCODES[I].code = I; |
| } |
| nVal = 0; |
| nBits = 0; |
| for(;;) { |
| if(pStream->read1Bit(&nTmp) != 0) { |
| m_pModule->JBig2_Free(SBSYMCODES); |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| nVal = (nVal << 1) | nTmp; |
| for(IDI = 0; IDI < SBNUMSYMS; IDI++) { |
| if((nVal == SBSYMCODES[IDI].code) |
| && (nBits == SBSYMCODES[IDI].codelen)) { |
| break; |
| } |
| } |
| if(IDI < SBNUMSYMS) { |
| break; |
| } |
| } |
| m_pModule->JBig2_Free(SBSYMCODES); |
| JBIG2_ALLOC(SBHUFFRDX, CJBig2_HuffmanTable(HuffmanTable_B15, |
| sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15)); |
| JBIG2_ALLOC(SBHUFFRSIZE, CJBig2_HuffmanTable(HuffmanTable_B1, |
| sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); |
| if((pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDXI) != 0) |
| || (pHuffmanDecoder->decodeAValue(SBHUFFRDX, &RDYI) != 0) |
| || (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE, &nVal) != 0)) { |
| delete SBHUFFRDX; |
| delete SBHUFFRSIZE; |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| delete SBHUFFRDX; |
| delete SBHUFFRSIZE; |
| pStream->alignByte(); |
| nTmp = pStream->getOffset(); |
| SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(SBNUMSYMS, sizeof(CJBig2_Image*)); |
| JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); |
| JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, NSYMSDECODED * sizeof(CJBig2_Image*)); |
| JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc()); |
| pGRRD->GRW = SYMWIDTH; |
| pGRRD->GRH = HCHEIGHT; |
| pGRRD->GRTEMPLATE = SDRTEMPLATE; |
| pGRRD->GRREFERENCE = SBSYMS[IDI]; |
| pGRRD->GRREFERENCEDX = RDXI; |
| pGRRD->GRREFERENCEDY = RDYI; |
| pGRRD->TPGRON = 0; |
| pGRRD->GRAT[0] = SDRAT[0]; |
| pGRRD->GRAT[1] = SDRAT[1]; |
| pGRRD->GRAT[2] = SDRAT[2]; |
| pGRRD->GRAT[3] = SDRAT[3]; |
| JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(pStream)); |
| BS = pGRRD->decode(pArithDecoder, grContext); |
| if(BS == NULL) { |
| m_pModule->JBig2_Free(SBSYMS); |
| delete pGRRD; |
| delete pArithDecoder; |
| goto failed; |
| } |
| pStream->alignByte(); |
| pStream->offset(2); |
| if((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { |
| delete BS; |
| m_pModule->JBig2_Free(SBSYMS); |
| delete pGRRD; |
| delete pArithDecoder; |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman):" |
| "bytes processed by generic refinement region decoding procedure doesn't equal SBHUFFRSIZE."); |
| goto failed; |
| } |
| m_pModule->JBig2_Free(SBSYMS); |
| delete pGRRD; |
| delete pArithDecoder; |
| } |
| SDNEWSYMS[NSYMSDECODED] = BS; |
| } |
| if(SDREFAGG == 0) { |
| SDNEWSYMWIDTHS[NSYMSDECODED] = SYMWIDTH; |
| } |
| NSYMSDECODED = NSYMSDECODED + 1; |
| } |
| if(SDREFAGG == 0) { |
| if(pHuffmanDecoder->decodeAValue(SDHUFFBMSIZE, (FX_INT32*)&BMSIZE) != 0) { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| pStream->alignByte(); |
| if(BMSIZE == 0) { |
| stride = (TOTWIDTH + 7) >> 3; |
| if(pStream->getByteLeft() >= stride * HCHEIGHT) { |
| JBIG2_ALLOC(BHC, CJBig2_Image(TOTWIDTH, HCHEIGHT)); |
| for(I = 0; I < HCHEIGHT; I ++) { |
| JBIG2_memcpy(BHC->m_pData + I * BHC->m_nStride, pStream->getPointer(), stride); |
| pStream->offset(stride); |
| } |
| } else { |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| } else { |
| JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); |
| pGRD->MMR = 1; |
| pGRD->GBW = TOTWIDTH; |
| pGRD->GBH = HCHEIGHT; |
| FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHC, pStream); |
| while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
| pGRD->Continue_decode(pPause); |
| } |
| delete pGRD; |
| pStream->alignByte(); |
| } |
| nTmp = 0; |
| if (!BHC) { |
| continue; |
| } |
| for(I = HCFIRSTSYM; I < NSYMSDECODED; I++) { |
| SDNEWSYMS[I] = BHC->subImage(nTmp, 0, SDNEWSYMWIDTHS[I], HCHEIGHT); |
| nTmp += SDNEWSYMWIDTHS[I]; |
| } |
| delete BHC; |
| BHC = NULL; |
| } |
| } |
| EXINDEX = 0; |
| CUREXFLAG = 0; |
| JBIG2_ALLOC(pTable, CJBig2_HuffmanTable(HuffmanTable_B1, |
| sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1)); |
| EXFLAGS = (FX_BOOL*)m_pModule->JBig2_Malloc2(sizeof(FX_BOOL), (SDNUMINSYMS + SDNUMNEWSYMS)); |
| while(EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { |
| if(pHuffmanDecoder->decodeAValue(pTable, (int*)&EXRUNLENGTH) != 0) { |
| delete pTable; |
| m_pModule->JBig2_Free(EXFLAGS); |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (huffman): too short."); |
| goto failed; |
| } |
| if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { |
| delete pTable; |
| m_pModule->JBig2_Free(EXFLAGS); |
| m_pModule->JBig2_Error("symbol dictionary decoding procedure (arith): Invalid EXRUNLENGTH value."); |
| goto failed; |
| } |
| if(EXRUNLENGTH != 0) { |
| for(I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { |
| EXFLAGS[I] = CUREXFLAG; |
| } |
| } |
| EXINDEX = EXINDEX + EXRUNLENGTH; |
| CUREXFLAG = !CUREXFLAG; |
| } |
| delete pTable; |
| JBIG2_ALLOC(pDict, CJBig2_SymbolDict()); |
| pDict->SDNUMEXSYMS = SDNUMEXSYMS; |
| pDict->SDEXSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), SDNUMEXSYMS); |
| I = J = 0; |
| for(I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { |
| if(EXFLAGS[I] && J < SDNUMEXSYMS) { |
| if(I < SDNUMINSYMS) { |
| JBIG2_ALLOC(pDict->SDEXSYMS[J], CJBig2_Image(*SDINSYMS[I])); |
| } else { |
| pDict->SDEXSYMS[J] = SDNEWSYMS[I - SDNUMINSYMS]; |
| } |
| J = J + 1; |
| } else if (!EXFLAGS[I] && I >= SDNUMINSYMS) { |
| delete SDNEWSYMS[I - SDNUMINSYMS]; |
| } |
| } |
| if (J < SDNUMEXSYMS) { |
| pDict->SDNUMEXSYMS = J; |
| } |
| m_pModule->JBig2_Free(EXFLAGS); |
| m_pModule->JBig2_Free(SDNEWSYMS); |
| if(SDREFAGG == 0) { |
| m_pModule->JBig2_Free(SDNEWSYMWIDTHS); |
| } |
| delete pHuffmanDecoder; |
| return pDict; |
| failed: |
| for(I = 0; I < NSYMSDECODED; I++) { |
| if (SDNEWSYMS[I]) { |
| delete SDNEWSYMS[I]; |
| } |
| } |
| m_pModule->JBig2_Free(SDNEWSYMS); |
| if(SDREFAGG == 0) { |
| m_pModule->JBig2_Free(SDNEWSYMWIDTHS); |
| } |
| delete pHuffmanDecoder; |
| return NULL; |
| } |
| CJBig2_Image *CJBig2_HTRDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, |
| JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_DWORD ng, mg; |
| FX_INT32 x, y; |
| CJBig2_Image *HSKIP; |
| FX_DWORD HBPP; |
| FX_DWORD *GI; |
| CJBig2_Image *HTREG; |
| CJBig2_GSIDProc *pGID; |
| JBIG2_ALLOC(HTREG, CJBig2_Image(HBW, HBH)); |
| HTREG->fill(HDEFPIXEL); |
| HSKIP = NULL; |
| if(HENABLESKIP == 1) { |
| JBIG2_ALLOC(HSKIP, CJBig2_Image(HGW, HGH)); |
| for(mg = 0; mg < HGH; mg++) { |
| for(ng = 0; ng < HGW; ng++) { |
| x = (HGX + mg * HRY + ng * HRX) >> 8; |
| y = (HGY + mg * HRX - ng * HRY) >> 8; |
| if((x + HPW <= 0) | (x >= (FX_INT32)HBW) |
| | (y + HPH <= 0) | (y >= (FX_INT32)HPH)) { |
| HSKIP->setPixel(ng, mg, 1); |
| } else { |
| HSKIP->setPixel(ng, mg, 0); |
| } |
| } |
| } |
| } |
| HBPP = 1; |
| while((FX_DWORD)(1 << HBPP) < HNUMPATS) { |
| HBPP ++; |
| } |
| JBIG2_ALLOC(pGID, CJBig2_GSIDProc()); |
| pGID->GSMMR = HMMR; |
| pGID->GSW = HGW; |
| pGID->GSH = HGH; |
| pGID->GSBPP = (FX_BYTE)HBPP; |
| pGID->GSUSESKIP = HENABLESKIP; |
| pGID->GSKIP = HSKIP; |
| pGID->GSTEMPLATE = HTEMPLATE; |
| GI = pGID->decode_Arith(pArithDecoder, gbContext, pPause); |
| if(GI == NULL) { |
| goto failed; |
| } |
| for(mg = 0; mg < HGH; mg++) { |
| for(ng = 0; ng < HGW; ng++) { |
| x = (HGX + mg * HRY + ng * HRX) >> 8; |
| y = (HGY + mg * HRX - ng * HRY) >> 8; |
| FX_DWORD pat_index = GI[mg * HGW + ng]; |
| if (pat_index >= HNUMPATS) { |
| pat_index = HNUMPATS - 1; |
| } |
| HTREG->composeFrom(x, y, HPATS[pat_index], HCOMBOP); |
| } |
| } |
| m_pModule->JBig2_Free(GI); |
| if(HSKIP) { |
| delete HSKIP; |
| } |
| delete pGID; |
| return HTREG; |
| failed: |
| if(HSKIP) { |
| delete HSKIP; |
| } |
| delete pGID; |
| delete HTREG; |
| return NULL; |
| } |
| CJBig2_Image *CJBig2_HTRDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) |
| { |
| FX_DWORD ng, mg; |
| FX_INT32 x, y; |
| FX_DWORD HBPP; |
| FX_DWORD *GI; |
| CJBig2_Image *HTREG; |
| CJBig2_GSIDProc *pGID; |
| JBIG2_ALLOC(HTREG, CJBig2_Image(HBW, HBH)); |
| HTREG->fill(HDEFPIXEL); |
| HBPP = 1; |
| while((FX_DWORD)(1 << HBPP) < HNUMPATS) { |
| HBPP ++; |
| } |
| JBIG2_ALLOC(pGID, CJBig2_GSIDProc()); |
| pGID->GSMMR = HMMR; |
| pGID->GSW = HGW; |
| pGID->GSH = HGH; |
| pGID->GSBPP = (FX_BYTE)HBPP; |
| pGID->GSUSESKIP = 0; |
| GI = pGID->decode_MMR(pStream, pPause); |
| if(GI == NULL) { |
| goto failed; |
| } |
| for(mg = 0; mg < HGH; mg++) { |
| for(ng = 0; ng < HGW; ng++) { |
| x = (HGX + mg * HRY + ng * HRX) >> 8; |
| y = (HGY + mg * HRX - ng * HRY) >> 8; |
| FX_DWORD pat_index = GI[mg * HGW + ng]; |
| if (pat_index >= HNUMPATS) { |
| pat_index = HNUMPATS - 1; |
| } |
| HTREG->composeFrom(x, y, HPATS[pat_index], HCOMBOP); |
| } |
| } |
| m_pModule->JBig2_Free(GI); |
| delete pGID; |
| return HTREG; |
| failed: |
| delete pGID; |
| delete HTREG; |
| return NULL; |
| } |
| CJBig2_PatternDict *CJBig2_PDDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, |
| JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_DWORD GRAY; |
| CJBig2_Image *BHDC = NULL; |
| CJBig2_PatternDict *pDict; |
| CJBig2_GRDProc *pGRD; |
| JBIG2_ALLOC(pDict, CJBig2_PatternDict()); |
| pDict->NUMPATS = GRAYMAX + 1; |
| pDict->HDPATS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), pDict->NUMPATS); |
| JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*)*pDict->NUMPATS); |
| JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); |
| pGRD->MMR = HDMMR; |
| pGRD->GBW = (GRAYMAX + 1) * HDPW; |
| pGRD->GBH = HDPH; |
| pGRD->GBTEMPLATE = HDTEMPLATE; |
| pGRD->TPGDON = 0; |
| pGRD->USESKIP = 0; |
| pGRD->GBAT[0] = -(FX_INT32)HDPW; |
| pGRD->GBAT[1] = 0; |
| if(pGRD->GBTEMPLATE == 0) { |
| pGRD->GBAT[2] = -3; |
| pGRD->GBAT[3] = -1; |
| pGRD->GBAT[4] = 2; |
| pGRD->GBAT[5] = -2; |
| pGRD->GBAT[6] = -2; |
| pGRD->GBAT[7] = -2; |
| } |
| FXCODEC_STATUS status = pGRD->Start_decode_Arith(&BHDC, pArithDecoder, gbContext); |
| while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
| pGRD->Continue_decode(pPause); |
| } |
| if(BHDC == NULL) { |
| delete pGRD; |
| goto failed; |
| } |
| delete pGRD; |
| GRAY = 0; |
| while(GRAY <= GRAYMAX) { |
| pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); |
| GRAY = GRAY + 1; |
| } |
| delete BHDC; |
| return pDict; |
| failed: |
| delete pDict; |
| return NULL; |
| } |
| |
| CJBig2_PatternDict *CJBig2_PDDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) |
| { |
| FX_DWORD GRAY; |
| CJBig2_Image *BHDC = NULL; |
| CJBig2_PatternDict *pDict; |
| CJBig2_GRDProc *pGRD; |
| JBIG2_ALLOC(pDict, CJBig2_PatternDict()); |
| pDict->NUMPATS = GRAYMAX + 1; |
| pDict->HDPATS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), pDict->NUMPATS); |
| JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*)*pDict->NUMPATS); |
| JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); |
| pGRD->MMR = HDMMR; |
| pGRD->GBW = (GRAYMAX + 1) * HDPW; |
| pGRD->GBH = HDPH; |
| FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHDC, pStream); |
| while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
| pGRD->Continue_decode(pPause); |
| } |
| if(BHDC == NULL) { |
| delete pGRD; |
| goto failed; |
| } |
| delete pGRD; |
| GRAY = 0; |
| while(GRAY <= GRAYMAX) { |
| pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); |
| GRAY = GRAY + 1; |
| } |
| delete BHDC; |
| return pDict; |
| failed: |
| delete pDict; |
| return NULL; |
| } |
| FX_DWORD *CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder *pArithDecoder, |
| JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| CJBig2_Image **GSPLANES; |
| FX_INT32 J, K; |
| FX_DWORD x, y; |
| FX_DWORD *GSVALS; |
| CJBig2_GRDProc *pGRD; |
| GSPLANES = (CJBig2_Image **)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), GSBPP); |
| if (!GSPLANES) { |
| return NULL; |
| } |
| GSVALS = (FX_DWORD*)m_pModule->JBig2_Malloc3(sizeof(FX_DWORD), GSW, GSH); |
| if (!GSVALS) { |
| m_pModule->JBig2_Free(GSPLANES); |
| return NULL; |
| } |
| JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*)*GSBPP); |
| JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD)*GSW * GSH); |
| JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); |
| pGRD->MMR = GSMMR; |
| pGRD->GBW = GSW; |
| pGRD->GBH = GSH; |
| pGRD->GBTEMPLATE = GSTEMPLATE; |
| pGRD->TPGDON = 0; |
| pGRD->USESKIP = GSUSESKIP; |
| pGRD->SKIP = GSKIP; |
| if(GSTEMPLATE <= 1) { |
| pGRD->GBAT[0] = 3; |
| } else { |
| pGRD->GBAT[0] = 2; |
| } |
| pGRD->GBAT[1] = -1; |
| if(pGRD->GBTEMPLATE == 0) { |
| pGRD->GBAT[2] = -3; |
| pGRD->GBAT[3] = -1; |
| pGRD->GBAT[4] = 2; |
| pGRD->GBAT[5] = -2; |
| pGRD->GBAT[6] = -2; |
| pGRD->GBAT[7] = -2; |
| } |
| FXCODEC_STATUS status = pGRD->Start_decode_Arith(&GSPLANES[GSBPP - 1], pArithDecoder, gbContext); |
| while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
| pGRD->Continue_decode(pPause); |
| } |
| if(GSPLANES[GSBPP - 1] == NULL) { |
| goto failed; |
| } |
| J = GSBPP - 2; |
| while(J >= 0) { |
| FXCODEC_STATUS status = pGRD->Start_decode_Arith(&GSPLANES[J], pArithDecoder, gbContext); |
| while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
| pGRD->Continue_decode(pPause); |
| } |
| if(GSPLANES[J] == NULL) { |
| for(K = GSBPP - 1; K > J; K--) { |
| delete GSPLANES[K]; |
| goto failed; |
| } |
| } |
| GSPLANES[J]->composeFrom(0, 0, GSPLANES[J + 1], JBIG2_COMPOSE_XOR); |
| J = J - 1; |
| } |
| for(y = 0; y < GSH; y++) { |
| for(x = 0; x < GSW; x++) { |
| for(J = 0; J < GSBPP; J++) { |
| GSVALS[y * GSW + x] |= GSPLANES[J]->getPixel(x, y) << J; |
| } |
| } |
| } |
| for(J = 0; J < GSBPP; J++) { |
| delete GSPLANES[J]; |
| } |
| m_pModule->JBig2_Free(GSPLANES); |
| delete pGRD; |
| return GSVALS; |
| failed: |
| m_pModule->JBig2_Free(GSPLANES); |
| delete pGRD; |
| m_pModule->JBig2_Free(GSVALS); |
| return NULL; |
| } |
| FX_DWORD *CJBig2_GSIDProc::decode_MMR(CJBig2_BitStream *pStream, IFX_Pause* pPause) |
| { |
| CJBig2_Image **GSPLANES; |
| FX_INT32 J, K; |
| FX_DWORD x, y; |
| FX_DWORD *GSVALS; |
| CJBig2_GRDProc *pGRD; |
| GSPLANES = (CJBig2_Image **)m_pModule->JBig2_Malloc2(sizeof(CJBig2_Image*), GSBPP); |
| if (!GSPLANES) { |
| return NULL; |
| } |
| GSVALS = (FX_DWORD*)m_pModule->JBig2_Malloc3(sizeof(FX_DWORD), GSW, GSH); |
| if (!GSVALS) { |
| if (GSPLANES) { |
| m_pModule->JBig2_Free(GSPLANES); |
| } |
| return NULL; |
| } |
| JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*)*GSBPP); |
| JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD)*GSW * GSH); |
| JBIG2_ALLOC(pGRD, CJBig2_GRDProc()); |
| pGRD->MMR = GSMMR; |
| pGRD->GBW = GSW; |
| pGRD->GBH = GSH; |
| FXCODEC_STATUS status = pGRD->Start_decode_MMR(&GSPLANES[GSBPP - 1], pStream); |
| while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
| pGRD->Continue_decode(pPause); |
| } |
| if(GSPLANES[GSBPP - 1] == NULL) { |
| goto failed; |
| } |
| pStream->alignByte(); |
| pStream->offset(3); |
| J = GSBPP - 2; |
| while(J >= 0) { |
| FXCODEC_STATUS status = pGRD->Start_decode_MMR(&GSPLANES[J], pStream); |
| while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
| pGRD->Continue_decode(pPause); |
| } |
| if(GSPLANES[J] == NULL) { |
| for(K = GSBPP - 1; K > J; K--) { |
| delete GSPLANES[K]; |
| goto failed; |
| } |
| } |
| pStream->alignByte(); |
| pStream->offset(3); |
| GSPLANES[J]->composeFrom(0, 0, GSPLANES[J + 1], JBIG2_COMPOSE_XOR); |
| J = J - 1; |
| } |
| for(y = 0; y < GSH; y++) { |
| for(x = 0; x < GSW; x++) { |
| for(J = 0; J < GSBPP; J++) { |
| GSVALS[y * GSW + x] |= GSPLANES[J]->getPixel(x, y) << J; |
| } |
| } |
| } |
| for(J = 0; J < GSBPP; J++) { |
| delete GSPLANES[J]; |
| } |
| m_pModule->JBig2_Free(GSPLANES); |
| delete pGRD; |
| return GSVALS; |
| failed: |
| m_pModule->JBig2_Free(GSPLANES); |
| delete pGRD; |
| m_pModule->JBig2_Free(GSVALS); |
| return NULL; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| if (GBW == 0 || GBH == 0) { |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; |
| m_pPause = pPause; |
| if(*pImage == NULL) { |
| JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); |
| } |
| if ((*pImage)->m_pData == NULL) { |
| delete *pImage; |
| *pImage = NULL; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| m_ProssiveStatus = FXCODEC_STATUS_ERROR; |
| return FXCODEC_STATUS_ERROR; |
| } |
| m_DecodeType = 1; |
| m_pImage = pImage; |
| (*m_pImage)->fill(0); |
| m_pArithDecoder = pArithDecoder; |
| m_gbContext = gbContext; |
| LTP = 0; |
| m_pLine = NULL; |
| m_loopIndex = 0; |
| return decode_Arith(pPause); |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith(IFX_Pause* pPause) |
| { |
| int iline = m_loopIndex; |
| CJBig2_Image* pImage = *m_pImage; |
| if(GBTEMPLATE == 0) { |
| if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1) |
| && (GBAT[2] == (signed char) - 3) && (GBAT[3] == (signed char) - 1) |
| && (GBAT[4] == 2) && (GBAT[5] == (signed char) - 2) |
| && (GBAT[6] == (signed char) - 2) && (GBAT[7] == (signed char) - 2)) { |
| m_ProssiveStatus = decode_Arith_Template0_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); |
| } else { |
| m_ProssiveStatus = decode_Arith_Template0_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); |
| } |
| } else if(GBTEMPLATE == 1) { |
| if((GBAT[0] == 3) && (GBAT[1] == (signed char) - 1)) { |
| m_ProssiveStatus = decode_Arith_Template1_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); |
| } else { |
| m_ProssiveStatus = decode_Arith_Template1_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); |
| } |
| } else if(GBTEMPLATE == 2) { |
| if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { |
| m_ProssiveStatus = decode_Arith_Template2_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); |
| } else { |
| m_ProssiveStatus = decode_Arith_Template2_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); |
| } |
| } else { |
| if((GBAT[0] == 2) && (GBAT[1] == (signed char) - 1)) { |
| m_ProssiveStatus = decode_Arith_Template3_opt3(pImage, m_pArithDecoder, m_gbContext, pPause); |
| } else { |
| m_ProssiveStatus = decode_Arith_Template3_unopt(pImage, m_pArithDecoder, m_gbContext, pPause); |
| } |
| } |
| m_ReplaceRect.left = 0; |
| m_ReplaceRect.right = pImage->m_nWidth; |
| m_ReplaceRect.top = iline; |
| m_ReplaceRect.bottom = m_loopIndex; |
| if(m_ProssiveStatus == FXCODEC_STATUS_DECODE_FINISH) { |
| m_loopIndex = 0; |
| } |
| return m_ProssiveStatus; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith_V2(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| if(GBW == 0 || GBH == 0) { |
| * pImage = NULL; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| if(*pImage == NULL) { |
| JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); |
| } |
| if ((*pImage)->m_pData == NULL) { |
| delete *pImage; |
| *pImage = NULL; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| m_ProssiveStatus = FXCODEC_STATUS_ERROR; |
| return FXCODEC_STATUS_ERROR; |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; |
| m_DecodeType = 2; |
| m_pPause = pPause; |
| m_pImage = pImage; |
| (*m_pImage)->fill(0); |
| LTP = 0; |
| m_loopIndex = 0; |
| m_pArithDecoder = pArithDecoder; |
| m_gbContext = gbContext; |
| return decode_Arith_V2(pPause); |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_V2(IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| CJBig2_Image *GBREG = *m_pImage; |
| FX_DWORD line1, line2, line3; |
| LTP = 0; |
| JBIG2_ALLOC(GBREG, CJBig2_Image(GBW, GBH)); |
| GBREG->fill(0); |
| for(; m_loopIndex < GBH; m_loopIndex++) { |
| if(TPGDON) { |
| switch(GBTEMPLATE) { |
| case 0: |
| CONTEXT = 0x9b25; |
| break; |
| case 1: |
| CONTEXT = 0x0795; |
| break; |
| case 2: |
| CONTEXT = 0x00e5; |
| break; |
| case 3: |
| CONTEXT = 0x0195; |
| break; |
| } |
| SLTP = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| GBREG->copyLine(m_loopIndex, m_loopIndex - 1); |
| } else { |
| switch(GBTEMPLATE) { |
| case 0: { |
| line1 = GBREG->getPixel(1, m_loopIndex - 2); |
| line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 1; |
| line2 = GBREG->getPixel(2, m_loopIndex - 1); |
| line2 |= GBREG->getPixel(1, m_loopIndex - 1) << 1; |
| line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; |
| CONTEXT |= line2 << 5; |
| CONTEXT |= GBREG->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; |
| CONTEXT |= GBREG->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; |
| CONTEXT |= line1 << 12; |
| CONTEXT |= GBREG->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; |
| bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, m_loopIndex, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 2)) & 0x07; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x0f; |
| } |
| } |
| break; |
| case 1: { |
| line1 = GBREG->getPixel(2, m_loopIndex - 2); |
| line1 |= GBREG->getPixel(1, m_loopIndex - 2) << 1; |
| line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 2; |
| line2 = GBREG->getPixel(2, m_loopIndex - 1); |
| line2 |= GBREG->getPixel(1, m_loopIndex - 1) << 1; |
| line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 3; |
| CONTEXT |= line2 << 4; |
| CONTEXT |= line1 << 9; |
| bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, m_loopIndex, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 2)) & 0x0f; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x07; |
| } |
| } |
| break; |
| case 2: { |
| line1 = GBREG->getPixel(1, m_loopIndex - 2); |
| line1 |= GBREG->getPixel(0, m_loopIndex - 2) << 1; |
| line2 = GBREG->getPixel(1, m_loopIndex - 1); |
| line2 |= GBREG->getPixel(0, m_loopIndex - 1) << 1; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; |
| CONTEXT |= line2 << 3; |
| CONTEXT |= line1 << 7; |
| bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, m_loopIndex, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 2)) & 0x07; |
| line2 = ((line2 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 1)) & 0x0f; |
| line3 = ((line3 << 1) | bVal) & 0x03; |
| } |
| } |
| break; |
| case 3: { |
| line1 = GBREG->getPixel(1, m_loopIndex - 1); |
| line1 |= GBREG->getPixel(0, m_loopIndex - 1) << 1; |
| line2 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line2; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; |
| CONTEXT |= line1 << 5; |
| bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| GBREG->setPixel(w, m_loopIndex, bVal); |
| } |
| line1 = ((line1 << 1) | GBREG->getPixel(w + 2, m_loopIndex - 1)) & 0x1f; |
| line2 = ((line2 << 1) | bVal) & 0x0f; |
| } |
| } |
| break; |
| } |
| } |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex ++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith_V1(CJBig2_Image** pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| if(GBW == 0 || GBH == 0) { |
| * pImage = NULL; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| if(*pImage == NULL) { |
| JBIG2_ALLOC((*pImage), CJBig2_Image(GBW, GBH)); |
| } |
| if ((*pImage)->m_pData == NULL) { |
| delete *pImage; |
| *pImage = NULL; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| m_ProssiveStatus = FXCODEC_STATUS_ERROR; |
| return FXCODEC_STATUS_ERROR; |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY; |
| m_pPause = pPause; |
| m_pImage = pImage; |
| m_DecodeType = 3; |
| (*m_pImage)->fill(0); |
| LTP = 0; |
| m_loopIndex = 0; |
| m_pArithDecoder = pArithDecoder; |
| m_gbContext = gbContext; |
| return decode_Arith_V1(pPause); |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_V1(IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT = 0; |
| CJBig2_Image *GBREG = (*m_pImage); |
| for(; m_loopIndex < GBH; m_loopIndex++) { |
| if(TPGDON) { |
| switch(GBTEMPLATE) { |
| case 0: |
| CONTEXT = 0x9b25; |
| break; |
| case 1: |
| CONTEXT = 0x0795; |
| break; |
| case 2: |
| CONTEXT = 0x00e5; |
| break; |
| case 3: |
| CONTEXT = 0x0195; |
| break; |
| } |
| SLTP = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| GBREG->setPixel(w, m_loopIndex, GBREG->getPixel(w, m_loopIndex - 1)); |
| } |
| } else { |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { |
| GBREG->setPixel(w, m_loopIndex, 0); |
| } else { |
| CONTEXT = 0; |
| switch(GBTEMPLATE) { |
| case 0: |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); |
| CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; |
| CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; |
| CONTEXT |= GBREG->getPixel(w - 4, m_loopIndex) << 3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; |
| CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 1) << 5; |
| CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 6; |
| CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 7; |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 8; |
| CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 9; |
| CONTEXT |= GBREG->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; |
| CONTEXT |= GBREG->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; |
| CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 12; |
| CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 13; |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 14; |
| CONTEXT |= GBREG->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; |
| break; |
| case 1: |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); |
| CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; |
| CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 3; |
| CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 1) << 4; |
| CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 5; |
| CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 6; |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 7; |
| CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 8; |
| CONTEXT |= GBREG->getPixel(w + 2, m_loopIndex - 2) << 9; |
| CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 10; |
| CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 11; |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 12; |
| break; |
| case 2: |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); |
| CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; |
| CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 3; |
| CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 4; |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 5; |
| CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 6; |
| CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 2) << 7; |
| CONTEXT |= GBREG->getPixel(w, m_loopIndex - 2) << 8; |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 2) << 9; |
| break; |
| case 3: |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex); |
| CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex) << 1; |
| CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex) << 2; |
| CONTEXT |= GBREG->getPixel(w - 4, m_loopIndex) << 3; |
| CONTEXT |= GBREG->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; |
| CONTEXT |= GBREG->getPixel(w + 1, m_loopIndex - 1) << 5; |
| CONTEXT |= GBREG->getPixel(w, m_loopIndex - 1) << 6; |
| CONTEXT |= GBREG->getPixel(w - 1, m_loopIndex - 1) << 7; |
| CONTEXT |= GBREG->getPixel(w - 2, m_loopIndex - 1) << 8; |
| CONTEXT |= GBREG->getPixel(w - 3, m_loopIndex - 1) << 9; |
| break; |
| } |
| bVal = m_pArithDecoder->DECODE(&m_gbContext[CONTEXT]); |
| GBREG->setPixel(w, m_loopIndex, bVal); |
| } |
| } |
| } |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex ++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::Start_decode_MMR(CJBig2_Image** pImage, CJBig2_BitStream *pStream, IFX_Pause* pPause) |
| { |
| int bitpos, i; |
| JBIG2_ALLOC((* pImage), CJBig2_Image(GBW, GBH)); |
| if ((* pImage)->m_pData == NULL) { |
| delete (* pImage); |
| (* pImage) = NULL; |
| m_pModule->JBig2_Error("Generic region decoding procedure: Create Image Failed with width = %d, height = %d\n", GBW, GBH); |
| m_ProssiveStatus = FXCODEC_STATUS_ERROR; |
| return m_ProssiveStatus; |
| } |
| bitpos = (int)pStream->getBitPos(); |
| _FaxG4Decode(m_pModule, pStream->getBuf(), pStream->getLength(), &bitpos, (* pImage)->m_pData, GBW, GBH, (* pImage)->m_nStride); |
| pStream->setBitPos(bitpos); |
| for(i = 0; (FX_DWORD)i < (* pImage)->m_nStride * GBH; i++) { |
| (* pImage)->m_pData[i] = ~(* pImage)->m_pData[i]; |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return m_ProssiveStatus; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_MMR() |
| { |
| return m_ProssiveStatus; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::Continue_decode(IFX_Pause* pPause) |
| { |
| if(m_ProssiveStatus != FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
| return m_ProssiveStatus; |
| } |
| switch (m_DecodeType) { |
| case 1: |
| return decode_Arith(pPause); |
| case 2: |
| return decode_Arith_V2(pPause); |
| case 3: |
| return decode_Arith_V1(pPause); |
| case 4: |
| return decode_MMR(); |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_ERROR; |
| return m_ProssiveStatus; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template0_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine1, *pLine2, cVal; |
| FX_INT32 nStride, nStride2, k; |
| FX_INT32 nLineBytes, nBitsLeft, cc; |
| if(m_pLine == NULL) { |
| m_pLine = pImage->m_pData; |
| } |
| nStride = pImage->m_nStride; |
| nStride2 = nStride << 1; |
| nLineBytes = ((GBW + 7) >> 3) - 1; |
| nBitsLeft = GBW - (nLineBytes << 3); |
| FX_DWORD height = GBH & 0x7fffffff; |
| for(; m_loopIndex < height; m_loopIndex++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| pImage->copyLine(m_loopIndex, m_loopIndex - 1); |
| } else { |
| if(m_loopIndex > 1) { |
| pLine1 = m_pLine - nStride2; |
| pLine2 = m_pLine - nStride; |
| line1 = (*pLine1++) << 6; |
| line2 = *pLine2++; |
| CONTEXT = ((line1 & 0xf800) | (line2 & 0x07f0)); |
| for(cc = 0; cc < nLineBytes; cc++) { |
| line1 = (line1 << 8) | ((*pLine1++) << 6); |
| line2 = (line2 << 8) | (*pLine2++); |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
| | ((line1 >> k) & 0x0800) |
| | ((line2 >> k) & 0x0010)); |
| } |
| m_pLine[cc] = cVal; |
| } |
| line1 <<= 8; |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0800) |
| | ((line2 >> (7 - k)) & 0x0010)); |
| } |
| m_pLine[nLineBytes] = cVal; |
| } else { |
| pLine2 = m_pLine - nStride; |
| line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; |
| CONTEXT = (line2 & 0x07f0); |
| for(cc = 0; cc < nLineBytes; cc++) { |
| if(m_loopIndex & 1) { |
| line2 = (line2 << 8) | (*pLine2++); |
| } |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
| | ((line2 >> k) & 0x0010)); |
| } |
| m_pLine[cc] = cVal; |
| } |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
| | ((line2 >> (7 - k)) & 0x0010)); |
| } |
| m_pLine[nLineBytes] = cVal; |
| } |
| } |
| m_pLine += nStride; |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template0_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| FX_DWORD line1, line2, line3; |
| for(; m_loopIndex < GBH; m_loopIndex++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| pImage->copyLine(m_loopIndex, m_loopIndex - 1); |
| } else { |
| line1 = pImage->getPixel(1, m_loopIndex - 2); |
| line1 |= pImage->getPixel(0, m_loopIndex - 2) << 1; |
| line2 = pImage->getPixel(2, m_loopIndex - 1); |
| line2 |= pImage->getPixel(1, m_loopIndex - 1) << 1; |
| line2 |= pImage->getPixel(0, m_loopIndex - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; |
| CONTEXT |= line2 << 5; |
| CONTEXT |= pImage->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10; |
| CONTEXT |= pImage->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11; |
| CONTEXT |= line1 << 12; |
| CONTEXT |= pImage->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| pImage->setPixel(w, m_loopIndex, bVal); |
| } |
| line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 2)) & 0x07; |
| line2 = ((line2 << 1) | pImage->getPixel(w + 3, m_loopIndex - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x0f; |
| } |
| } |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template1_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine1, *pLine2, cVal; |
| FX_INT32 nStride, nStride2, k; |
| FX_INT32 nLineBytes, nBitsLeft, cc; |
| if (!m_pLine) { |
| m_pLine = pImage->m_pData; |
| } |
| nStride = pImage->m_nStride; |
| nStride2 = nStride << 1; |
| nLineBytes = ((GBW + 7) >> 3) - 1; |
| nBitsLeft = GBW - (nLineBytes << 3); |
| for(; m_loopIndex < GBH; m_loopIndex++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| pImage->copyLine(m_loopIndex, m_loopIndex - 1); |
| } else { |
| if(m_loopIndex > 1) { |
| pLine1 = m_pLine - nStride2; |
| pLine2 = m_pLine - nStride; |
| line1 = (*pLine1++) << 4; |
| line2 = *pLine2++; |
| CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8); |
| for(cc = 0; cc < nLineBytes; cc++) { |
| line1 = (line1 << 8) | ((*pLine1++) << 4); |
| line2 = (line2 << 8) | (*pLine2++); |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line1 >> k) & 0x0200) |
| | ((line2 >> (k + 1)) & 0x0008); |
| } |
| m_pLine[cc] = cVal; |
| } |
| line1 <<= 8; |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0200) |
| | ((line2 >> (8 - k)) & 0x0008); |
| } |
| m_pLine[nLineBytes] = cVal; |
| } else { |
| pLine2 = m_pLine - nStride; |
| line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; |
| CONTEXT = (line2 >> 1) & 0x01f8; |
| for(cc = 0; cc < nLineBytes; cc++) { |
| if(m_loopIndex & 1) { |
| line2 = (line2 << 8) | (*pLine2++); |
| } |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line2 >> (k + 1)) & 0x0008); |
| } |
| m_pLine[cc] = cVal; |
| } |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
| | ((line2 >> (8 - k)) & 0x0008); |
| } |
| m_pLine[nLineBytes] = cVal; |
| } |
| } |
| m_pLine += nStride; |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template1_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| FX_DWORD line1, line2, line3; |
| for(FX_DWORD h = 0; h < GBH; h++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0795]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| pImage->copyLine(h, h - 1); |
| } else { |
| line1 = pImage->getPixel(2, h - 2); |
| line1 |= pImage->getPixel(1, h - 2) << 1; |
| line1 |= pImage->getPixel(0, h - 2) << 2; |
| line2 = pImage->getPixel(2, h - 1); |
| line2 |= pImage->getPixel(1, h - 1) << 1; |
| line2 |= pImage->getPixel(0, h - 1) << 2; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, h)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= pImage->getPixel(w + GBAT[0], h + GBAT[1]) << 3; |
| CONTEXT |= line2 << 4; |
| CONTEXT |= line1 << 9; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| pImage->setPixel(w, h, bVal); |
| } |
| line1 = ((line1 << 1) | pImage->getPixel(w + 3, h - 2)) & 0x0f; |
| line2 = ((line2 << 1) | pImage->getPixel(w + 3, h - 1)) & 0x1f; |
| line3 = ((line3 << 1) | bVal) & 0x07; |
| } |
| } |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template2_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| FX_DWORD line1, line2; |
| FX_BYTE *pLine1, *pLine2, cVal; |
| FX_INT32 nStride, nStride2, k; |
| FX_INT32 nLineBytes, nBitsLeft, cc; |
| if(!m_pLine) { |
| m_pLine = pImage->m_pData; |
| } |
| nStride = pImage->m_nStride; |
| nStride2 = nStride << 1; |
| nLineBytes = ((GBW + 7) >> 3) - 1; |
| nBitsLeft = GBW - (nLineBytes << 3); |
| for(; m_loopIndex < GBH; m_loopIndex++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| pImage->copyLine(m_loopIndex, m_loopIndex - 1); |
| } else { |
| if(m_loopIndex > 1) { |
| pLine1 = m_pLine - nStride2; |
| pLine2 = m_pLine - nStride; |
| line1 = (*pLine1++) << 1; |
| line2 = *pLine2++; |
| CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c); |
| for(cc = 0; cc < nLineBytes; cc++) { |
| line1 = (line1 << 8) | ((*pLine1++) << 1); |
| line2 = (line2 << 8) | (*pLine2++); |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | ((line1 >> k) & 0x0080) |
| | ((line2 >> (k + 3)) & 0x0004); |
| } |
| m_pLine[cc] = cVal; |
| } |
| line1 <<= 8; |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | ((line1 >> (7 - k)) & 0x0080) |
| | ((line2 >> (10 - k)) & 0x0004); |
| } |
| m_pLine[nLineBytes] = cVal; |
| } else { |
| pLine2 = m_pLine - nStride; |
| line2 = (m_loopIndex & 1) ? (*pLine2++) : 0; |
| CONTEXT = (line2 >> 3) & 0x007c; |
| for(cc = 0; cc < nLineBytes; cc++) { |
| if(m_loopIndex & 1) { |
| line2 = (line2 << 8) | (*pLine2++); |
| } |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | ((line2 >> (k + 3)) & 0x0004); |
| } |
| m_pLine[cc] = cVal; |
| } |
| line2 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
| | (((line2 >> (10 - k))) & 0x0004); |
| } |
| m_pLine[nLineBytes] = cVal; |
| } |
| } |
| m_pLine += nStride; |
| if(pPause && m_loopIndex % 50 == 0 && pPause->NeedToPauseNow()) { |
| m_loopIndex++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template2_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| FX_DWORD line1, line2, line3; |
| for(; m_loopIndex < GBH; m_loopIndex++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| pImage->copyLine(m_loopIndex, m_loopIndex - 1); |
| } else { |
| line1 = pImage->getPixel(1, m_loopIndex - 2); |
| line1 |= pImage->getPixel(0, m_loopIndex - 2) << 1; |
| line2 = pImage->getPixel(1, m_loopIndex - 1); |
| line2 |= pImage->getPixel(0, m_loopIndex - 1) << 1; |
| line3 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line3; |
| CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2; |
| CONTEXT |= line2 << 3; |
| CONTEXT |= line1 << 7; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| pImage->setPixel(w, m_loopIndex, bVal); |
| } |
| line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 2)) & 0x07; |
| line2 = ((line2 << 1) | pImage->getPixel(w + 2, m_loopIndex - 1)) & 0x0f; |
| line3 = ((line3 << 1) | bVal) & 0x03; |
| } |
| } |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template3_opt3(CJBig2_Image *pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| FX_DWORD line1; |
| FX_BYTE *pLine1, cVal; |
| FX_INT32 nStride, k; |
| FX_INT32 nLineBytes, nBitsLeft, cc; |
| if (!m_pLine) { |
| m_pLine = pImage->m_pData; |
| } |
| nStride = pImage->m_nStride; |
| nLineBytes = ((GBW + 7) >> 3) - 1; |
| nBitsLeft = GBW - (nLineBytes << 3); |
| for(; m_loopIndex < GBH; m_loopIndex++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| pImage->copyLine(m_loopIndex, m_loopIndex - 1); |
| } else { |
| if(m_loopIndex > 0) { |
| pLine1 = m_pLine - nStride; |
| line1 = *pLine1++; |
| CONTEXT = (line1 >> 1) & 0x03f0; |
| for(cc = 0; cc < nLineBytes; cc++) { |
| line1 = (line1 << 8) | (*pLine1++); |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal |
| | ((line1 >> (k + 1)) & 0x0010); |
| } |
| m_pLine[cc] = cVal; |
| } |
| line1 <<= 8; |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal |
| | ((line1 >> (8 - k)) & 0x0010); |
| } |
| m_pLine[nLineBytes] = cVal; |
| } else { |
| CONTEXT = 0; |
| for(cc = 0; cc < nLineBytes; cc++) { |
| cVal = 0; |
| for(k = 7; k >= 0; k--) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << k; |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; |
| } |
| m_pLine[cc] = cVal; |
| } |
| cVal = 0; |
| for(k = 0; k < nBitsLeft; k++) { |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| cVal |= bVal << (7 - k); |
| CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal; |
| } |
| m_pLine[nLineBytes] = cVal; |
| } |
| } |
| m_pLine += nStride; |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |
| FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template3_unopt(CJBig2_Image * pImage, CJBig2_ArithDecoder *pArithDecoder, JBig2ArithCtx *gbContext, IFX_Pause* pPause) |
| { |
| FX_BOOL SLTP, bVal; |
| FX_DWORD CONTEXT; |
| FX_DWORD line1, line2; |
| for(; m_loopIndex < GBH; m_loopIndex++) { |
| if(TPGDON) { |
| SLTP = pArithDecoder->DECODE(&gbContext[0x0195]); |
| LTP = LTP ^ SLTP; |
| } |
| if(LTP == 1) { |
| pImage->copyLine(m_loopIndex, m_loopIndex - 1); |
| } else { |
| line1 = pImage->getPixel(1, m_loopIndex - 1); |
| line1 |= pImage->getPixel(0, m_loopIndex - 1) << 1; |
| line2 = 0; |
| for(FX_DWORD w = 0; w < GBW; w++) { |
| if(USESKIP && SKIP->getPixel(w, m_loopIndex)) { |
| bVal = 0; |
| } else { |
| CONTEXT = line2; |
| CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4; |
| CONTEXT |= line1 << 5; |
| bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]); |
| } |
| if(bVal) { |
| pImage->setPixel(w, m_loopIndex, bVal); |
| } |
| line1 = ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 1)) & 0x1f; |
| line2 = ((line2 << 1) | bVal) & 0x0f; |
| } |
| } |
| if(pPause && pPause->NeedToPauseNow()) { |
| m_loopIndex++; |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| } |
| } |
| m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH; |
| return FXCODEC_STATUS_DECODE_FINISH; |
| } |