diff options
| author | Lei Zhang <thestig@chromium.org> | 2015-09-24 01:13:26 -0700 |
|---|---|---|
| committer | Lei Zhang <thestig@chromium.org> | 2015-09-24 01:13:26 -0700 |
| commit | b060a551917627e3436bfb0a2a5c7a08cb5c58af (patch) | |
| tree | ecb7fa1d5d18bb07b3fd38d2eeb81d77b603e24b /core/src | |
| parent | 99b56f693e01e1d5e146cbfba8c750b943a0eaab (diff) | |
| download | pdfium-b060a551917627e3436bfb0a2a5c7a08cb5c58af.tar.xz | |
Merge to XFA: Split up JBig2_GeneralDecoder.cpp.
TBR=tsepez@chromium.org
Review URL: https://codereview.chromium.org/1359233002 .
(cherry picked from commit 630a28442364f03c1d3d9b48873da42755e1fddf)
Review URL: https://codereview.chromium.org/1364083004 .
Diffstat (limited to 'core/src')
22 files changed, 3829 insertions, 3545 deletions
diff --git a/core/src/fxcodec/jbig2/JBig2_ArithDecoder.cpp b/core/src/fxcodec/jbig2/JBig2_ArithDecoder.cpp new file mode 100644 index 0000000000..34c79f9fa3 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_ArithDecoder.cpp @@ -0,0 +1,166 @@ +// 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_ArithDecoder.h" + +#include "../../../include/fxcrt/fx_basic.h" +#include "JBig2_BitStream.h" +#include "JBig2_Define.h" + +namespace { + +struct JBig2ArithQe { + unsigned int Qe; + unsigned int NMPS; + unsigned int NLPS; + unsigned int nSwitch; +}; + +const JBig2ArithQe kQeTable[] = { + // Stupid hack to keep clang-format from reformatting this badly. + {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}}; + +} // namespace + +CJBig2_ArithDecoder::CJBig2_ArithDecoder(CJBig2_BitStream* pStream) { + m_pStream = pStream; + INITDEC(); +} + +CJBig2_ArithDecoder::~CJBig2_ArithDecoder() { +} + +int CJBig2_ArithDecoder::DECODE(JBig2ArithCtx* pCX) { + if (!pCX || pCX->I >= FX_ArraySize(kQeTable)) { + return 0; + } + + int D; + const JBig2ArithQe* qe = &kQeTable[pCX->I]; + A = A - qe->Qe; + if ((C >> 16) < A) { + if (A & 0x8000) { + D = pCX->MPS; + } else { + if (A < qe->Qe) { + D = 1 - pCX->MPS; + if (qe->nSwitch == 1) { + pCX->MPS = 1 - pCX->MPS; + } + pCX->I = qe->NLPS; + } else { + D = pCX->MPS; + pCX->I = qe->NMPS; + } + do { + if (CT == 0) { + BYTEIN(); + } + A <<= 1; + C <<= 1; + CT--; + } while ((A & 0x8000) == 0); + } + } else { + C -= A << 16; + if (A < qe->Qe) { + A = qe->Qe; + D = pCX->MPS; + pCX->I = qe->NMPS; + } else { + A = qe->Qe; + D = 1 - pCX->MPS; + if (qe->nSwitch == 1) { + pCX->MPS = 1 - pCX->MPS; + } + pCX->I = qe->NLPS; + } + do { + if (CT == 0) { + BYTEIN(); + } + A <<= 1; + C <<= 1; + CT--; + } while ((A & 0x8000) == 0); + } + return D; +} + +void CJBig2_ArithDecoder::INITDEC() { + B = m_pStream->getCurByte_arith(); + C = (B ^ 0xff) << 16; + BYTEIN(); + C = C << 7; + CT = CT - 7; + A = 0x8000; +} + +void CJBig2_ArithDecoder::BYTEIN() { + unsigned char B1; + if (B == 0xff) { + B1 = m_pStream->getNextByte_arith(); + if (B1 > 0x8f) { + CT = 8; + } else { + m_pStream->incByteIdx(); + B = B1; + C = C + 0xfe00 - (B << 9); + CT = 7; + } + } else { + m_pStream->incByteIdx(); + B = m_pStream->getCurByte_arith(); + C = C + 0xff00 - (B << 8); + CT = 8; + } +} diff --git a/core/src/fxcodec/jbig2/JBig2_ArithDecoder.h b/core/src/fxcodec/jbig2/JBig2_ArithDecoder.h index 7acfe9cd36..02c81b34c0 100644 --- a/core/src/fxcodec/jbig2/JBig2_ArithDecoder.h +++ b/core/src/fxcodec/jbig2/JBig2_ArithDecoder.h @@ -4,11 +4,10 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#ifndef _JBIG2_ARITHMETIC_DECODER_H_ -#define _JBIG2_ARITHMETIC_DECODER_H_ -#include "JBig2_Define.h" -#include "JBig2_BitStream.h" -#include "JBig2_ArithQe.h" +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_ARITHDECODER_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_ARITHDECODER_H_ + +class CJBig2_BitStream; struct JBig2ArithCtx { unsigned int MPS; @@ -34,93 +33,4 @@ class CJBig2_ArithDecoder { CJBig2_BitStream* m_pStream; }; -inline CJBig2_ArithDecoder::CJBig2_ArithDecoder(CJBig2_BitStream* pStream) { - m_pStream = pStream; - INITDEC(); -} -inline CJBig2_ArithDecoder::~CJBig2_ArithDecoder() {} -inline void CJBig2_ArithDecoder::INITDEC() { - B = m_pStream->getCurByte_arith(); - C = (B ^ 0xff) << 16; - ; - BYTEIN(); - C = C << 7; - CT = CT - 7; - A = 0x8000; -} -inline void CJBig2_ArithDecoder::BYTEIN() { - unsigned char B1; - if (B == 0xff) { - B1 = m_pStream->getNextByte_arith(); - if (B1 > 0x8f) { - CT = 8; - } else { - m_pStream->incByteIdx(); - B = B1; - C = C + 0xfe00 - (B << 9); - CT = 7; - } - } else { - m_pStream->incByteIdx(); - B = m_pStream->getCurByte_arith(); - C = C + 0xff00 - (B << 8); - CT = 8; - } -} -inline int CJBig2_ArithDecoder::DECODE(JBig2ArithCtx* pCX) { - if (!pCX || pCX->I >= JBIG2_QE_NUM) { - return 0; - } - - int D; - const JBig2ArithQe* qe = &QeTable[pCX->I]; - A = A - qe->Qe; - if ((C >> 16) < A) { - if (A & 0x8000) { - D = pCX->MPS; - } else { - if (A < qe->Qe) { - D = 1 - pCX->MPS; - if (qe->nSwitch == 1) { - pCX->MPS = 1 - pCX->MPS; - } - pCX->I = qe->NLPS; - } else { - D = pCX->MPS; - pCX->I = qe->NMPS; - } - do { - if (CT == 0) { - BYTEIN(); - } - A <<= 1; - C <<= 1; - CT--; - } while ((A & 0x8000) == 0); - } - } else { - C -= A << 16; - if (A < qe->Qe) { - A = qe->Qe; - D = pCX->MPS; - pCX->I = qe->NMPS; - } else { - A = qe->Qe; - D = 1 - pCX->MPS; - if (qe->nSwitch == 1) { - pCX->MPS = 1 - pCX->MPS; - } - pCX->I = qe->NLPS; - } - do { - if (CT == 0) { - BYTEIN(); - } - A <<= 1; - C <<= 1; - CT--; - } while ((A & 0x8000) == 0); - } - return D; -} -#endif +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_ARITHDECODER_H_ diff --git a/core/src/fxcodec/jbig2/JBig2_ArithIntDecoder.cpp b/core/src/fxcodec/jbig2/JBig2_ArithIntDecoder.cpp index c8baa158e9..b194faf4ee 100644 --- a/core/src/fxcodec/jbig2/JBig2_ArithIntDecoder.cpp +++ b/core/src/fxcodec/jbig2/JBig2_ArithIntDecoder.cpp @@ -7,6 +7,7 @@ #include "JBig2_ArithIntDecoder.h" #include "../../../include/fxcrt/fx_memory.h" +#include "JBig2_Define.h" CJBig2_ArithIntDecoder::CJBig2_ArithIntDecoder() { IAx = FX_Alloc(JBig2ArithCtx, 512); diff --git a/core/src/fxcodec/jbig2/JBig2_ArithQe.h b/core/src/fxcodec/jbig2/JBig2_ArithQe.h deleted file mode 100644 index d4eabec757..0000000000 --- a/core/src/fxcodec/jbig2/JBig2_ArithQe.h +++ /dev/null @@ -1,17 +0,0 @@ -// 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 - -#ifndef _JBIG2_ARITH_QE_H_ -#define _JBIG2_ARITH_QE_H_ -typedef struct { - unsigned int Qe; - unsigned int NMPS; - unsigned int NLPS; - unsigned int nSwitch; -} JBig2ArithQe; -extern const JBig2ArithQe QeTable[]; -extern const unsigned int JBIG2_QE_NUM; -#endif diff --git a/core/src/fxcodec/jbig2/JBig2_Context.cpp b/core/src/fxcodec/jbig2/JBig2_Context.cpp index b70054171d..c004c87503 100644 --- a/core/src/fxcodec/jbig2/JBig2_Context.cpp +++ b/core/src/fxcodec/jbig2/JBig2_Context.cpp @@ -4,9 +4,17 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#include <list> #include "JBig2_Context.h" +#include <list> + +#include "JBig2_GrdProc.h" +#include "JBig2_GrrdProc.h" +#include "JBig2_HtrdProc.h" +#include "JBig2_PddProc.h" +#include "JBig2_SddProc.h" +#include "JBig2_TrdProc.h" + // Implement a very small least recently used (LRU) cache. It is very // common for a JBIG2 dictionary to span multiple pages in a PDF file, // and we do not want to decode the same dictionary over and over @@ -14,7 +22,7 @@ // list keeps track of the freshness of entries, with freshest ones // at the front. Even a tiny cache size like 2 makes a dramatic // difference for typical JBIG2 documents. -const int kSymbolDictCacheMaxSize = 2; +static const int kSymbolDictCacheMaxSize = 2; CJBig2_Context* CJBig2_Context::CreateContext( const uint8_t* pGlobalData, @@ -497,13 +505,18 @@ int32_t CJBig2_Context::parseSymbolDict(CJBig2_Segment* pSegment, FX_DWORD dwTemp; FX_WORD wFlags; uint8_t cSDHUFFDH, cSDHUFFDW, cSDHUFFBMSIZE, cSDHUFFAGGINST; - CJBig2_HuffmanTable *Table_B1 = NULL, *Table_B2 = NULL, *Table_B3 = NULL, - *Table_B4 = NULL, *Table_B5 = NULL; + CJBig2_HuffmanTable* Table_B1 = nullptr; + CJBig2_HuffmanTable* Table_B2 = nullptr; + CJBig2_HuffmanTable* Table_B3 = nullptr; + CJBig2_HuffmanTable* Table_B4 = nullptr; + CJBig2_HuffmanTable* Table_B5 = nullptr; int32_t i, nIndex, nRet; - CJBig2_Segment *pSeg = NULL, *pLRSeg = NULL; + CJBig2_Segment* pSeg = nullptr; + CJBig2_Segment* pLRSeg = nullptr; FX_BOOL bUsed; - CJBig2_Image** SDINSYMS = NULL; - JBig2ArithCtx *gbContext = NULL, *grContext = NULL; + CJBig2_Image** SDINSYMS = nullptr; + JBig2ArithCtx* gbContext = nullptr; + JBig2ArithCtx* grContext = nullptr; CJBig2_ArithDecoder* pArithDecoder; CJBig2_SDDProc* pSymbolDictDecoder = new CJBig2_SDDProc(); const uint8_t* key = pSegment->m_pData; @@ -767,15 +780,22 @@ int32_t CJBig2_Context::parseTextRegion(CJBig2_Segment* pSegment) { int32_t i, nIndex, nRet; JBig2RegionInfo ri; CJBig2_Segment* pSeg; - CJBig2_Image** SBSYMS = NULL; - JBig2HuffmanCode* SBSYMCODES = NULL; + CJBig2_Image** SBSYMS = nullptr; + JBig2HuffmanCode* SBSYMCODES = nullptr; uint8_t cSBHUFFFS, cSBHUFFDS, cSBHUFFDT, cSBHUFFRDW, cSBHUFFRDH, cSBHUFFRDX, cSBHUFFRDY, cSBHUFFRSIZE; - CJBig2_HuffmanTable *Table_B1 = NULL, *Table_B6 = NULL, *Table_B7 = NULL, - *Table_B8 = NULL, *Table_B9 = NULL, *Table_B10 = NULL, - *Table_B11 = NULL, *Table_B12 = NULL, *Table_B13 = NULL, - *Table_B14 = NULL, *Table_B15 = NULL; - JBig2ArithCtx* grContext = NULL; + CJBig2_HuffmanTable* Table_B1 = nullptr; + CJBig2_HuffmanTable* Table_B6 = nullptr; + CJBig2_HuffmanTable* Table_B7 = nullptr; + CJBig2_HuffmanTable* Table_B8 = nullptr; + CJBig2_HuffmanTable* Table_B9 = nullptr; + CJBig2_HuffmanTable* Table_B10 = nullptr; + CJBig2_HuffmanTable* Table_B11 = nullptr; + CJBig2_HuffmanTable* Table_B12 = nullptr; + CJBig2_HuffmanTable* Table_B13 = nullptr; + CJBig2_HuffmanTable* Table_B14 = nullptr; + CJBig2_HuffmanTable* Table_B15 = nullptr; + JBig2ArithCtx* grContext = nullptr; CJBig2_ArithDecoder* pArithDecoder; CJBig2_TRDProc* pTRD = new CJBig2_TRDProc(); if ((parseRegionInfo(&ri) != JBIG2_SUCCESS) || diff --git a/core/src/fxcodec/jbig2/JBig2_Context.h b/core/src/fxcodec/jbig2/JBig2_Context.h index 1af6b9444c..48bc794205 100644 --- a/core/src/fxcodec/jbig2/JBig2_Context.h +++ b/core/src/fxcodec/jbig2/JBig2_Context.h @@ -4,19 +4,21 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#ifndef _JBIG2_CONTEXT_H_ -#define _JBIG2_CONTEXT_H_ +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_CONTEXT_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_CONTEXT_H_ #include <list> #include <utility> #include "../../../../third_party/base/nonstd_unique_ptr.h" #include "../../../include/fxcodec/fx_codec_def.h" -#include "JBig2_GeneralDecoder.h" #include "JBig2_List.h" #include "JBig2_Page.h" #include "JBig2_Segment.h" +class CJBig2_GRDProc; +class IFX_Pause; + using CJBig2_CachePair = std::pair<const uint8_t*, CJBig2_SymbolDict*>; #define JBIG2_SUCCESS 0 @@ -141,4 +143,5 @@ class CJBig2_Context { JBig2RegionInfo m_ri; std::list<CJBig2_CachePair>* m_pSymbolDictCache; }; -#endif + +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_CONTEXT_H_ diff --git a/core/src/fxcodec/jbig2/JBig2_GeneralDecoder.cpp b/core/src/fxcodec/jbig2/JBig2_GeneralDecoder.cpp deleted file mode 100644 index d93d3e0e03..0000000000 --- a/core/src/fxcodec/jbig2/JBig2_GeneralDecoder.cpp +++ /dev/null @@ -1,3130 +0,0 @@ -// 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 "../../../../third_party/base/nonstd_unique_ptr.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}}; - -extern const unsigned int JBIG2_QE_NUM = FX_ArraySize(QeTable); - -bool CJBig2_GRDProc::UseTemplate0Opt3() const { - return (GBAT[0] == 3) && (GBAT[1] == -1) && (GBAT[2] == -3) && - (GBAT[3] == -1) && (GBAT[4] == 2) && (GBAT[5] == -2) && - (GBAT[6] == -2) && (GBAT[7] == -2); -} - -bool CJBig2_GRDProc::UseTemplate1Opt3() const { - return (GBAT[0] == 3) && (GBAT[1] == -1); -} - -bool CJBig2_GRDProc::UseTemplate23Opt3() const { - return (GBAT[0] == 2) && (GBAT[1] == -1); -} - -CJBig2_Image* CJBig2_GRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - if (GBW == 0 || GBH == 0) - return new CJBig2_Image(GBW, GBH); - - if (GBTEMPLATE == 0) { - if (UseTemplate0Opt3()) - return decode_Arith_Template0_opt3(pArithDecoder, gbContext); - return decode_Arith_Template0_unopt(pArithDecoder, gbContext); - } else if (GBTEMPLATE == 1) { - if (UseTemplate1Opt3()) - return decode_Arith_Template1_opt3(pArithDecoder, gbContext); - return decode_Arith_Template1_unopt(pArithDecoder, gbContext); - } else if (GBTEMPLATE == 2) { - if (UseTemplate23Opt3()) - return decode_Arith_Template2_opt3(pArithDecoder, gbContext); - return decode_Arith_Template2_unopt(pArithDecoder, gbContext); - } else { - if (UseTemplate23Opt3()) - return decode_Arith_Template3_opt3(pArithDecoder, gbContext); - return decode_Arith_Template3_unopt(pArithDecoder, gbContext); - } -} -CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_opt3( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line2; - uint8_t *pLine, *pLine1, *pLine2, cVal; - int32_t nStride, nStride2, k; - int32_t nLineBytes, nBitsLeft, cc; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH)); - if (!GBREG->m_pData) - return nullptr; - - 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.release(); -} - -CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_unopt( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line2, line3; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GBREG(new 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.release(); -} - -CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_opt3( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line2; - uint8_t *pLine, *pLine1, *pLine2, cVal; - int32_t nStride, nStride2, k; - int32_t nLineBytes, nBitsLeft, cc; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH)); - if (!GBREG->m_pData) - return nullptr; - - 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.release(); -} - -CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_unopt( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line2, line3; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GBREG(new 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.release(); -} -CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_opt3( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line2; - uint8_t *pLine, *pLine1, *pLine2, cVal; - int32_t nStride, nStride2, k; - int32_t nLineBytes, nBitsLeft, cc; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH)); - if (!GBREG->m_pData) - return nullptr; - - 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.release(); -} - -CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_unopt( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line2, line3; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GBREG(new 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.release(); -} - -CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template3_opt3( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1; - uint8_t *pLine, *pLine1, cVal; - int32_t nStride, k; - int32_t nLineBytes, nBitsLeft, cc; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH)); - if (!GBREG->m_pData) - return nullptr; - - 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.release(); -} - -CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template3_unopt( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line2; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GBREG(new 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.release(); -} - -CJBig2_Image* CJBig2_GRRDProc::decode(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext) { - if (GRW == 0 || GRH == 0) - return new CJBig2_Image(GRW, GRH); - - if (GRTEMPLATE == 0) { - if ((GRAT[0] == -1) && (GRAT[1] == -1) && (GRAT[2] == -1) && - (GRAT[3] == -1) && (GRREFERENCEDX == 0) && - (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { - return decode_Template0_opt(pArithDecoder, grContext); - } - return decode_Template0_unopt(pArithDecoder, grContext); - } - - if ((GRREFERENCEDX == 0) && (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) - return decode_Template1_opt(pArithDecoder, grContext); - 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; - FX_DWORD line1, line2, line3, line4, line5; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GRREG(new 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.release(); -} - -CJBig2_Image* CJBig2_GRRDProc::decode_Template0_opt( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext) { - if (!GRREFERENCE->m_pData) - return nullptr; - - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line1_r, line2_r, line3_r; - uint8_t *pLine, *pLineR, cVal; - intptr_t nStride, nStrideR, nOffset; - int32_t k, nBits; - int32_t GRWR, GRHR; - int32_t GRW, GRH; - GRW = (int32_t)CJBig2_GRRDProc::GRW; - GRH = (int32_t)CJBig2_GRRDProc::GRH; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GRREG(new CJBig2_Image(GRW, GRH)); - if (!GRREG->m_pData) - return nullptr; - - pLine = GRREG->m_pData; - pLineR = GRREFERENCE->m_pData; - nStride = GRREG->m_nStride; - nStrideR = GRREFERENCE->m_nStride; - GRWR = (int32_t)GRREFERENCE->m_nWidth; - GRHR = (int32_t)GRREFERENCE->m_nHeight; - if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { - GRREFERENCEDY = 0; - } - nOffset = -GRREFERENCEDY * nStrideR; - for (int32_t h = 0; h < GRH; h++) { - if (TPGRON) { - SLTP = pArithDecoder->DECODE(&grContext[0x0010]); - LTP = LTP ^ SLTP; - } - line1 = (h > 0) ? pLine[-nStride] << 4 : 0; - int32_t 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 (int32_t 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 (int32_t 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.release(); -} - -CJBig2_Image* CJBig2_GRRDProc::decode_Template1_unopt( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext) { - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line2, line3, line4, line5; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GRREG(new 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.release(); -} - -CJBig2_Image* CJBig2_GRRDProc::decode_Template1_opt( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext) { - if (!GRREFERENCE->m_pData) - return nullptr; - - FX_BOOL LTP, SLTP, bVal; - FX_DWORD CONTEXT; - FX_DWORD line1, line1_r, line2_r, line3_r; - uint8_t *pLine, *pLineR, cVal; - intptr_t nStride, nStrideR, nOffset; - int32_t k, nBits; - int32_t GRWR, GRHR; - int32_t GRW, GRH; - GRW = (int32_t)CJBig2_GRRDProc::GRW; - GRH = (int32_t)CJBig2_GRRDProc::GRH; - LTP = 0; - nonstd::unique_ptr<CJBig2_Image> GRREG(new CJBig2_Image(GRW, GRH)); - if (!GRREG->m_pData) - return nullptr; - - pLine = GRREG->m_pData; - pLineR = GRREFERENCE->m_pData; - nStride = GRREG->m_nStride; - nStrideR = GRREFERENCE->m_nStride; - GRWR = (int32_t)GRREFERENCE->m_nWidth; - GRHR = (int32_t)GRREFERENCE->m_nHeight; - if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { - GRREFERENCEDY = 0; - } - nOffset = -GRREFERENCEDY * nStrideR; - for (int32_t h = 0; h < GRH; h++) { - if (TPGRON) { - SLTP = pArithDecoder->DECODE(&grContext[0x0008]); - LTP = LTP ^ SLTP; - } - line1 = (h > 0) ? pLine[-nStride] << 1 : 0; - int32_t 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 (int32_t 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 (int32_t 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.release(); -} - -CJBig2_Image* CJBig2_TRDProc::decode_Huffman(CJBig2_BitStream* pStream, - JBig2ArithCtx* grContext) { - int32_t STRIPT, FIRSTS; - FX_DWORD NINSTANCES; - int32_t DT, DFS, CURS; - uint8_t CURT; - int32_t SI, TI; - FX_DWORD IDI; - CJBig2_Image* IBI; - FX_DWORD WI, HI; - int32_t IDS; - FX_BOOL RI; - int32_t RDWI, RDHI, RDXI, RDYI; - CJBig2_Image* IBOI; - FX_DWORD WOI, HOI; - FX_BOOL bFirst; - FX_DWORD nTmp; - int32_t nVal, nBits; - nonstd::unique_ptr<CJBig2_HuffmanDecoder> pHuffmanDecoder( - new CJBig2_HuffmanDecoder(pStream)); - nonstd::unique_ptr<CJBig2_Image> SBREG(new CJBig2_Image(SBW, SBH)); - SBREG->fill(SBDEFPIXEL); - if (pHuffmanDecoder->decodeAValue(SBHUFFDT, &STRIPT) != 0) - return nullptr; - - STRIPT *= SBSTRIPS; - STRIPT = -STRIPT; - FIRSTS = 0; - NINSTANCES = 0; - while (NINSTANCES < SBNUMINSTANCES) { - if (pHuffmanDecoder->decodeAValue(SBHUFFDT, &DT) != 0) - return nullptr; - - DT *= SBSTRIPS; - STRIPT = STRIPT + DT; - bFirst = TRUE; - for (;;) { - if (bFirst) { - if (pHuffmanDecoder->decodeAValue(SBHUFFFS, &DFS) != 0) - return nullptr; - - FIRSTS = FIRSTS + DFS; - CURS = FIRSTS; - bFirst = FALSE; - } else { - nVal = pHuffmanDecoder->decodeAValue(SBHUFFDS, &IDS); - if (nVal == JBIG2_OOB) { - break; - } else if (nVal != 0) { - return nullptr; - } 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) - return nullptr; - - CURT = nVal; - } - TI = STRIPT + CURT; - nVal = 0; - nBits = 0; - for (;;) { - if (pStream->read1Bit(&nTmp) != 0) - return nullptr; - - 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) { - return nullptr; - } - } - 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)) { - return nullptr; - } - pStream->alignByte(); - nTmp = pStream->getOffset(); - IBOI = SBSYMS[IDI]; - if (!IBOI) - return nullptr; - - WOI = IBOI->m_nWidth; - HOI = IBOI->m_nHeight; - if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) - return nullptr; - - nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new 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]; - - { - nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder( - new CJBig2_ArithDecoder(pStream)); - IBI = pGRRD->decode(pArithDecoder.get(), grContext); - if (!IBI) - return nullptr; - } - - pStream->alignByte(); - pStream->offset(2); - if ((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { - delete IBI; - return nullptr; - } - } - 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; - } - } - return SBREG.release(); -} - -CJBig2_Image* CJBig2_TRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext, - JBig2IntDecoderState* pIDS) { - int32_t STRIPT, FIRSTS; - FX_DWORD NINSTANCES; - int32_t DT, DFS, CURS; - int32_t CURT; - int32_t SI, TI; - FX_DWORD IDI; - CJBig2_Image* IBI; - FX_DWORD WI, HI; - int32_t IDS; - int RI; - int32_t RDWI, RDHI, RDXI, RDYI; - CJBig2_Image* IBOI; - FX_DWORD WOI, HOI; - FX_BOOL bFirst; - int32_t nRet, nVal; - int32_t bRetained; - CJBig2_ArithIntDecoder *IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH, - *IARDX, *IARDY; - CJBig2_ArithIaidDecoder* IAID; - 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 { - IADT = new CJBig2_ArithIntDecoder(); - IAFS = new CJBig2_ArithIntDecoder(); - IADS = new CJBig2_ArithIntDecoder(); - IAIT = new CJBig2_ArithIntDecoder(); - IARI = new CJBig2_ArithIntDecoder(); - IARDW = new CJBig2_ArithIntDecoder(); - IARDH = new CJBig2_ArithIntDecoder(); - IARDX = new CJBig2_ArithIntDecoder(); - IARDY = new CJBig2_ArithIntDecoder(); - IAID = new CJBig2_ArithIaidDecoder(SBSYMCODELEN); - bRetained = FALSE; - } - nonstd::unique_ptr<CJBig2_Image> SBREG(new CJBig2_Image(SBW, SBH)); - SBREG->fill(SBDEFPIXEL); - if (IADT->decode(pArithDecoder, &STRIPT) == -1) { - goto failed; - } - STRIPT *= SBSTRIPS; - STRIPT = -STRIPT; - FIRSTS = 0; - NINSTANCES = 0; - while (NINSTANCES < SBNUMINSTANCES) { - if (IADT->decode(pArithDecoder, &DT) == -1) { - goto failed; - } - DT *= SBSTRIPS; - STRIPT = STRIPT + DT; - bFirst = TRUE; - for (;;) { - if (bFirst) { - if (IAFS->decode(pArithDecoder, &DFS) == -1) { - goto failed; - } - FIRSTS = FIRSTS + DFS; - CURS = FIRSTS; - bFirst = FALSE; - } else { - nRet = IADS->decode(pArithDecoder, &IDS); - if (nRet == JBIG2_OOB) { - break; - } else if (nRet != 0) { - goto failed; - } else { - CURS = CURS + IDS + SBDSOFFSET; - } - } - if (NINSTANCES >= SBNUMINSTANCES) { - break; - } - if (SBSTRIPS == 1) { - CURT = 0; - } else { - if (IAIT->decode(pArithDecoder, &nVal) == -1) { - goto failed; - } - CURT = nVal; - } - TI = STRIPT + CURT; - if (IAID->decode(pArithDecoder, &nVal) == -1) { - goto failed; - } - IDI = nVal; - if (IDI >= SBNUMSYMS) { - goto failed; - } - if (SBREFINE == 0) { - RI = 0; - } else { - if (IARI->decode(pArithDecoder, &RI) == -1) { - 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)) { - goto failed; - } - IBOI = SBSYMS[IDI]; - WOI = IBOI->m_nWidth; - HOI = IBOI->m_nHeight; - if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) { - goto failed; - } - nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new 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) - goto failed; - } - 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.release(); -failed: - if (bRetained == FALSE) { - delete IADT; - delete IAFS; - delete IADS; - delete IAIT; - delete IARI; - delete IARDW; - delete IARDH; - delete IARDX; - delete IARDY; - delete IAID; - } - return nullptr; -} - -CJBig2_SymbolDict* CJBig2_SDDProc::decode_Arith( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - JBig2ArithCtx* grContext) { - CJBig2_Image** SDNEWSYMS; - FX_DWORD HCHEIGHT, NSYMSDECODED; - int32_t HCDH; - FX_DWORD SYMWIDTH, TOTWIDTH; - int32_t DW; - CJBig2_Image* BS; - FX_DWORD I, J, REFAGGNINST; - FX_BOOL* EXFLAGS; - FX_DWORD EXINDEX; - FX_BOOL CUREXFLAG; - FX_DWORD EXRUNLENGTH; - int32_t nVal; - FX_DWORD nTmp; - FX_DWORD SBNUMSYMS; - uint8_t SBSYMCODELEN; - FX_DWORD IDI; - int32_t RDXI, RDYI; - CJBig2_Image** SBSYMS; - nonstd::unique_ptr<CJBig2_ArithIaidDecoder> IAID; - nonstd::unique_ptr<CJBig2_SymbolDict> pDict; - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IADH(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IADW(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IAAI(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARDX(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARDY(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IAEX(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IADT(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IAFS(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IADS(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IAIT(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARI(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARDW(new CJBig2_ArithIntDecoder); - nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARDH(new CJBig2_ArithIntDecoder); - nTmp = 0; - while ((FX_DWORD)(1 << nTmp) < (SDNUMINSYMS + SDNUMNEWSYMS)) { - nTmp++; - } - IAID.reset(new CJBig2_ArithIaidDecoder((uint8_t)nTmp)); - SDNEWSYMS = FX_Alloc(CJBig2_Image*, SDNUMNEWSYMS); - FXSYS_memset(SDNEWSYMS, 0, SDNUMNEWSYMS * sizeof(CJBig2_Image*)); - - HCHEIGHT = 0; - NSYMSDECODED = 0; - while (NSYMSDECODED < SDNUMNEWSYMS) { - BS = nullptr; - if (IADH->decode(pArithDecoder, &HCDH) == -1) { - goto failed; - } - HCHEIGHT = HCHEIGHT + HCDH; - if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { - goto failed; - } - SYMWIDTH = 0; - TOTWIDTH = 0; - for (;;) { - nVal = IADW->decode(pArithDecoder, &DW); - if (nVal == JBIG2_OOB) { - break; - } else if (nVal != 0) { - goto failed; - } else { - if (NSYMSDECODED >= SDNUMNEWSYMS) { - goto failed; - } - SYMWIDTH = SYMWIDTH + DW; - if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { - goto failed; - } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { - TOTWIDTH = TOTWIDTH + SYMWIDTH; - SDNEWSYMS[NSYMSDECODED] = nullptr; - NSYMSDECODED = NSYMSDECODED + 1; - continue; - } - TOTWIDTH = TOTWIDTH + SYMWIDTH; - } - if (SDREFAGG == 0) { - nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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) { - goto failed; - } - } else { - if (IAAI->decode(pArithDecoder, (int*)&REFAGGNINST) == -1) { - goto failed; - } - if (REFAGGNINST > 1) { - nonstd::unique_ptr<CJBig2_TRDProc> pDecoder(new 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 = (uint8_t)nTmp; - pDecoder->SBSYMCODELEN = SBSYMCODELEN; - SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS); - 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; - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFFS( - new CJBig2_HuffmanTable(HuffmanTable_B6, - FX_ArraySize(HuffmanTable_B6), - HuffmanTable_HTOOB_B6)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFDS( - new CJBig2_HuffmanTable(HuffmanTable_B8, - FX_ArraySize(HuffmanTable_B8), - HuffmanTable_HTOOB_B8)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFDT( - new CJBig2_HuffmanTable(HuffmanTable_B11, - FX_ArraySize(HuffmanTable_B11), - HuffmanTable_HTOOB_B11)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDW( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDH( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDY( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE( - new CJBig2_HuffmanTable(HuffmanTable_B1, - FX_ArraySize(HuffmanTable_B1), - HuffmanTable_HTOOB_B1)); - pDecoder->SBHUFFFS = SBHUFFFS.get(); - pDecoder->SBHUFFDS = SBHUFFDS.get(); - pDecoder->SBHUFFDT = SBHUFFDT.get(); - pDecoder->SBHUFFRDW = SBHUFFRDW.get(); - pDecoder->SBHUFFRDH = SBHUFFRDH.get(); - pDecoder->SBHUFFRDX = SBHUFFRDX.get(); - pDecoder->SBHUFFRDY = SBHUFFRDY.get(); - pDecoder->SBHUFFRSIZE = SBHUFFRSIZE.get(); - 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.get(); - ids.IAFS = IAFS.get(); - ids.IADS = IADS.get(); - ids.IAIT = IAIT.get(); - ids.IARI = IARI.get(); - ids.IARDW = IARDW.get(); - ids.IARDH = IARDH.get(); - ids.IARDX = IARDX.get(); - ids.IARDY = IARDY.get(); - ids.IAID = IAID.get(); - BS = pDecoder->decode_Arith(pArithDecoder, grContext, &ids); - if (!BS) { - FX_Free(SBSYMS); - goto failed; - } - FX_Free(SBSYMS); - } else if (REFAGGNINST == 1) { - SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; - if (IAID->decode(pArithDecoder, (int*)&IDI) == -1) { - goto failed; - } - if ((IARDX->decode(pArithDecoder, &RDXI) == -1) || - (IARDY->decode(pArithDecoder, &RDYI) == -1)) { - goto failed; - } - if (IDI >= SBNUMSYMS) { - goto failed; - } - SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS); - JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); - JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, - NSYMSDECODED * sizeof(CJBig2_Image*)); - if (!SBSYMS[IDI]) { - FX_Free(SBSYMS); - goto failed; - } - nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new 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) { - FX_Free(SBSYMS); - goto failed; - } - FX_Free(SBSYMS); - } - } - SDNEWSYMS[NSYMSDECODED] = BS; - BS = nullptr; - NSYMSDECODED = NSYMSDECODED + 1; - } - } - EXINDEX = 0; - CUREXFLAG = 0; - EXFLAGS = FX_Alloc(FX_BOOL, SDNUMINSYMS + SDNUMNEWSYMS); - while (EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { - if (IAEX->decode(pArithDecoder, (int*)&EXRUNLENGTH) == -1) { - FX_Free(EXFLAGS); - goto failed; - } - if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { - FX_Free(EXFLAGS); - goto failed; - } - if (EXRUNLENGTH != 0) { - for (I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { - EXFLAGS[I] = CUREXFLAG; - } - } - EXINDEX = EXINDEX + EXRUNLENGTH; - CUREXFLAG = !CUREXFLAG; - } - pDict.reset(new CJBig2_SymbolDict); - pDict->SDNUMEXSYMS = SDNUMEXSYMS; - pDict->SDEXSYMS = FX_Alloc(CJBig2_Image*, SDNUMEXSYMS); - I = J = 0; - for (I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { - if (EXFLAGS[I] && J < SDNUMEXSYMS) { - if (I < SDNUMINSYMS) { - pDict->SDEXSYMS[J] = new 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; - } - FX_Free(EXFLAGS); - FX_Free(SDNEWSYMS); - return pDict.release(); -failed: - for (I = 0; I < NSYMSDECODED; I++) { - if (SDNEWSYMS[I]) { - delete SDNEWSYMS[I]; - SDNEWSYMS[I] = nullptr; - } - } - FX_Free(SDNEWSYMS); - return nullptr; -} - -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; - int32_t HCDH; - FX_DWORD SYMWIDTH, TOTWIDTH, HCFIRSTSYM; - int32_t DW; - CJBig2_Image *BS, *BHC; - FX_DWORD I, J, REFAGGNINST; - FX_BOOL* EXFLAGS; - FX_DWORD EXINDEX; - FX_BOOL CUREXFLAG; - FX_DWORD EXRUNLENGTH; - int32_t nVal, nBits; - FX_DWORD nTmp; - FX_DWORD SBNUMSYMS; - uint8_t SBSYMCODELEN; - JBig2HuffmanCode* SBSYMCODES; - FX_DWORD IDI; - int32_t RDXI, RDYI; - FX_DWORD BMSIZE; - FX_DWORD stride; - CJBig2_Image** SBSYMS; - nonstd::unique_ptr<CJBig2_HuffmanDecoder> pHuffmanDecoder( - new CJBig2_HuffmanDecoder(pStream)); - SDNEWSYMS = FX_Alloc(CJBig2_Image*, SDNUMNEWSYMS); - FXSYS_memset(SDNEWSYMS, 0, SDNUMNEWSYMS * sizeof(CJBig2_Image*)); - SDNEWSYMWIDTHS = nullptr; - BHC = nullptr; - if (SDREFAGG == 0) { - SDNEWSYMWIDTHS = FX_Alloc(FX_DWORD, SDNUMNEWSYMS); - FXSYS_memset(SDNEWSYMWIDTHS, 0, SDNUMNEWSYMS * sizeof(FX_DWORD)); - } - nonstd::unique_ptr<CJBig2_SymbolDict> pDict(new CJBig2_SymbolDict()); - nonstd::unique_ptr<CJBig2_HuffmanTable> pTable; - - HCHEIGHT = 0; - NSYMSDECODED = 0; - BS = nullptr; - while (NSYMSDECODED < SDNUMNEWSYMS) { - if (pHuffmanDecoder->decodeAValue(SDHUFFDH, &HCDH) != 0) { - goto failed; - } - HCHEIGHT = HCHEIGHT + HCDH; - if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { - goto failed; - } - SYMWIDTH = 0; - TOTWIDTH = 0; - HCFIRSTSYM = NSYMSDECODED; - for (;;) { - nVal = pHuffmanDecoder->decodeAValue(SDHUFFDW, &DW); - if (nVal == JBIG2_OOB) { - break; - } else if (nVal != 0) { - goto failed; - } else { - if (NSYMSDECODED >= SDNUMNEWSYMS) { - goto failed; - } - SYMWIDTH = SYMWIDTH + DW; - if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { - goto failed; - } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { - TOTWIDTH = TOTWIDTH + SYMWIDTH; - SDNEWSYMS[NSYMSDECODED] = nullptr; - NSYMSDECODED = NSYMSDECODED + 1; - continue; - } - TOTWIDTH = TOTWIDTH + SYMWIDTH; - } - if (SDREFAGG == 1) { - if (pHuffmanDecoder->decodeAValue(SDHUFFAGGINST, (int*)&REFAGGNINST) != - 0) { - goto failed; - } - BS = nullptr; - if (REFAGGNINST > 1) { - nonstd::unique_ptr<CJBig2_TRDProc> pDecoder(new 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 = FX_Alloc(JBig2HuffmanCode, SBNUMSYMS); - 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 = FX_Alloc(CJBig2_Image*, SBNUMSYMS); - 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; - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFFS( - new CJBig2_HuffmanTable(HuffmanTable_B6, - FX_ArraySize(HuffmanTable_B6), - HuffmanTable_HTOOB_B6)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFDS( - new CJBig2_HuffmanTable(HuffmanTable_B8, - FX_ArraySize(HuffmanTable_B8), - HuffmanTable_HTOOB_B8)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFDT( - new CJBig2_HuffmanTable(HuffmanTable_B11, - FX_ArraySize(HuffmanTable_B11), - HuffmanTable_HTOOB_B11)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDW( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDH( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDY( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE( - new CJBig2_HuffmanTable(HuffmanTable_B1, - FX_ArraySize(HuffmanTable_B1), - HuffmanTable_HTOOB_B1)); - pDecoder->SBHUFFFS = SBHUFFFS.get(); - pDecoder->SBHUFFDS = SBHUFFDS.get(); - pDecoder->SBHUFFDT = SBHUFFDT.get(); - pDecoder->SBHUFFRDW = SBHUFFRDW.get(); - pDecoder->SBHUFFRDH = SBHUFFRDH.get(); - pDecoder->SBHUFFRDX = SBHUFFRDX.get(); - pDecoder->SBHUFFRDY = SBHUFFRDY.get(); - pDecoder->SBHUFFRSIZE = SBHUFFRSIZE.get(); - 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) { - FX_Free(SBSYMCODES); - FX_Free(SBSYMS); - goto failed; - } - FX_Free(SBSYMCODES); - FX_Free(SBSYMS); - } else if (REFAGGNINST == 1) { - SBNUMSYMS = SDNUMINSYMS + SDNUMNEWSYMS; - nTmp = 1; - while ((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { - nTmp++; - } - SBSYMCODELEN = (uint8_t)nTmp; - SBSYMCODES = FX_Alloc(JBig2HuffmanCode, SBNUMSYMS); - for (I = 0; I < SBNUMSYMS; I++) { - SBSYMCODES[I].codelen = SBSYMCODELEN; - SBSYMCODES[I].code = I; - } - nVal = 0; - nBits = 0; - for (;;) { - if (pStream->read1Bit(&nTmp) != 0) { - FX_Free(SBSYMCODES); - 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; - } - } - FX_Free(SBSYMCODES); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX( - new CJBig2_HuffmanTable(HuffmanTable_B15, - FX_ArraySize(HuffmanTable_B15), - HuffmanTable_HTOOB_B15)); - nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE( - new CJBig2_HuffmanTable(HuffmanTable_B1, - FX_ArraySize(HuffmanTable_B1), - HuffmanTable_HTOOB_B1)); - if ((pHuffmanDecoder->decodeAValue(SBHUFFRDX.get(), &RDXI) != 0) || - (pHuffmanDecoder->decodeAValue(SBHUFFRDX.get(), &RDYI) != 0) || - (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE.get(), &nVal) != 0)) { - goto failed; - } - pStream->alignByte(); - nTmp = pStream->getOffset(); - SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS); - JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); - JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, - NSYMSDECODED * sizeof(CJBig2_Image*)); - nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new 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]; - nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder( - new CJBig2_ArithDecoder(pStream)); - BS = pGRRD->decode(pArithDecoder.get(), grContext); - if (!BS) { - FX_Free(SBSYMS); - goto failed; - } - pStream->alignByte(); - pStream->offset(2); - if ((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { - delete BS; - FX_Free(SBSYMS); - goto failed; - } - FX_Free(SBSYMS); - } - SDNEWSYMS[NSYMSDECODED] = BS; - } - if (SDREFAGG == 0) { - SDNEWSYMWIDTHS[NSYMSDECODED] = SYMWIDTH; - } - NSYMSDECODED = NSYMSDECODED + 1; - } - if (SDREFAGG == 0) { - if (pHuffmanDecoder->decodeAValue(SDHUFFBMSIZE, (int32_t*)&BMSIZE) != 0) { - goto failed; - } - pStream->alignByte(); - if (BMSIZE == 0) { - stride = (TOTWIDTH + 7) >> 3; - if (pStream->getByteLeft() >= stride * HCHEIGHT) { - BHC = new 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 { - goto failed; - } - } else { - nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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); - } - 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 = nullptr; - } - } - EXINDEX = 0; - CUREXFLAG = 0; - pTable.reset(new CJBig2_HuffmanTable( - HuffmanTable_B1, FX_ArraySize(HuffmanTable_B1), HuffmanTable_HTOOB_B1)); - EXFLAGS = FX_Alloc(FX_BOOL, SDNUMINSYMS + SDNUMNEWSYMS); - while (EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { - if (pHuffmanDecoder->decodeAValue(pTable.get(), (int*)&EXRUNLENGTH) != 0) { - FX_Free(EXFLAGS); - goto failed; - } - if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { - FX_Free(EXFLAGS); - goto failed; - } - if (EXRUNLENGTH != 0) { - for (I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { - EXFLAGS[I] = CUREXFLAG; - } - } - EXINDEX = EXINDEX + EXRUNLENGTH; - CUREXFLAG = !CUREXFLAG; - } - pDict->SDNUMEXSYMS = SDNUMEXSYMS; - pDict->SDEXSYMS = FX_Alloc(CJBig2_Image*, SDNUMEXSYMS); - I = J = 0; - for (I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { - if (EXFLAGS[I] && J < SDNUMEXSYMS) { - if (I < SDNUMINSYMS) { - pDict->SDEXSYMS[J] = new 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; - } - FX_Free(EXFLAGS); - FX_Free(SDNEWSYMS); - if (SDREFAGG == 0) { - FX_Free(SDNEWSYMWIDTHS); - } - return pDict.release(); -failed: - for (I = 0; I < NSYMSDECODED; I++) { - delete SDNEWSYMS[I]; - } - FX_Free(SDNEWSYMS); - if (SDREFAGG == 0) { - FX_Free(SDNEWSYMWIDTHS); - } - return nullptr; -} - -CJBig2_Image* CJBig2_HTRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause) { - FX_DWORD ng, mg; - int32_t x, y; - FX_DWORD HBPP; - FX_DWORD* GI; - nonstd::unique_ptr<CJBig2_Image> HSKIP; - nonstd::unique_ptr<CJBig2_Image> HTREG(new CJBig2_Image(HBW, HBH)); - HTREG->fill(HDEFPIXEL); - if (HENABLESKIP == 1) { - HSKIP.reset(new 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 >= (int32_t)HBW) | (y + HPH <= 0) | - (y >= (int32_t)HPH)) { - HSKIP->setPixel(ng, mg, 1); - } else { - HSKIP->setPixel(ng, mg, 0); - } - } - } - } - HBPP = 1; - while ((FX_DWORD)(1 << HBPP) < HNUMPATS) { - HBPP++; - } - nonstd::unique_ptr<CJBig2_GSIDProc> pGID(new CJBig2_GSIDProc()); - pGID->GSMMR = HMMR; - pGID->GSW = HGW; - pGID->GSH = HGH; - pGID->GSBPP = (uint8_t)HBPP; - pGID->GSUSESKIP = HENABLESKIP; - pGID->GSKIP = HSKIP.get(); - pGID->GSTEMPLATE = HTEMPLATE; - GI = pGID->decode_Arith(pArithDecoder, gbContext, pPause); - if (!GI) - return nullptr; - - 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); - } - } - FX_Free(GI); - return HTREG.release(); -} - -CJBig2_Image* CJBig2_HTRDProc::decode_MMR(CJBig2_BitStream* pStream, - IFX_Pause* pPause) { - FX_DWORD ng, mg; - int32_t x, y; - FX_DWORD* GI; - nonstd::unique_ptr<CJBig2_Image> HTREG(new CJBig2_Image(HBW, HBH)); - HTREG->fill(HDEFPIXEL); - FX_DWORD HBPP = 1; - while ((FX_DWORD)(1 << HBPP) < HNUMPATS) { - HBPP++; - } - nonstd::unique_ptr<CJBig2_GSIDProc> pGID(new CJBig2_GSIDProc()); - pGID->GSMMR = HMMR; - pGID->GSW = HGW; - pGID->GSH = HGH; - pGID->GSBPP = (uint8_t)HBPP; - pGID->GSUSESKIP = 0; - GI = pGID->decode_MMR(pStream, pPause); - if (!GI) - return nullptr; - - 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); - } - } - FX_Free(GI); - return HTREG.release(); -} - -CJBig2_PatternDict* CJBig2_PDDProc::decode_Arith( - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause) { - FX_DWORD GRAY; - CJBig2_Image* BHDC = nullptr; - nonstd::unique_ptr<CJBig2_PatternDict> pDict(new CJBig2_PatternDict()); - pDict->NUMPATS = GRAYMAX + 1; - pDict->HDPATS = FX_Alloc(CJBig2_Image*, pDict->NUMPATS); - JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*) * pDict->NUMPATS); - - nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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] = -(int32_t)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) - return nullptr; - - GRAY = 0; - while (GRAY <= GRAYMAX) { - pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); - GRAY = GRAY + 1; - } - delete BHDC; - return pDict.release(); -} - -CJBig2_PatternDict* CJBig2_PDDProc::decode_MMR(CJBig2_BitStream* pStream, - IFX_Pause* pPause) { - FX_DWORD GRAY; - CJBig2_Image* BHDC = nullptr; - nonstd::unique_ptr<CJBig2_PatternDict> pDict(new CJBig2_PatternDict()); - pDict->NUMPATS = GRAYMAX + 1; - pDict->HDPATS = FX_Alloc(CJBig2_Image*, pDict->NUMPATS); - JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*) * pDict->NUMPATS); - - nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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) - return nullptr; - - GRAY = 0; - while (GRAY <= GRAYMAX) { - pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); - GRAY = GRAY + 1; - } - delete BHDC; - return pDict.release(); -} - -FX_DWORD* CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause) { - CJBig2_Image** GSPLANES; - int32_t J, K; - FX_DWORD x, y; - FX_DWORD* GSVALS; - GSPLANES = FX_Alloc(CJBig2_Image*, GSBPP); - GSVALS = FX_Alloc2D(FX_DWORD, GSW, GSH); - JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*) * GSBPP); - JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD) * GSW * GSH); - - nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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]) { - 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]) { - 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]; - } - FX_Free(GSPLANES); - return GSVALS; -failed: - FX_Free(GSPLANES); - FX_Free(GSVALS); - return nullptr; -} - -FX_DWORD* CJBig2_GSIDProc::decode_MMR(CJBig2_BitStream* pStream, - IFX_Pause* pPause) { - CJBig2_Image** GSPLANES; - int32_t J, K; - FX_DWORD x, y; - FX_DWORD* GSVALS; - GSPLANES = FX_Alloc(CJBig2_Image*, GSBPP); - GSVALS = FX_Alloc2D(FX_DWORD, GSW, GSH); - JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*) * GSBPP); - JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD) * GSW * GSH); - - nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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]) { - 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]) { - 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]; - } - FX_Free(GSPLANES); - return GSVALS; -failed: - FX_Free(GSPLANES); - FX_Free(GSVALS); - return nullptr; -} - -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) - *pImage = new CJBig2_Image(GBW, GBH); - if (!(*pImage)->m_pData) { - delete *pImage; - *pImage = nullptr; - 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 = nullptr; - 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 (UseTemplate0Opt3()) { - 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 (UseTemplate1Opt3()) { - 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 (UseTemplate23Opt3()) { - 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 (UseTemplate23Opt3()) { - 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_MMR(CJBig2_Image** pImage, - CJBig2_BitStream* pStream, - IFX_Pause* pPause) { - int bitpos, i; - *pImage = new CJBig2_Image(GBW, GBH); - if (!(*pImage)->m_pData) { - delete (*pImage); - (*pImage) = nullptr; - m_ProssiveStatus = FXCODEC_STATUS_ERROR; - return m_ProssiveStatus; - } - bitpos = (int)pStream->getBitPos(); - _FaxG4Decode(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::Continue_decode(IFX_Pause* pPause) { - if (m_ProssiveStatus != FXCODEC_STATUS_DECODE_TOBECONTINUE) - return m_ProssiveStatus; - - if (m_DecodeType != 1) { - m_ProssiveStatus = FXCODEC_STATUS_ERROR; - return m_ProssiveStatus; - } - - return decode_Arith(pPause); -} - -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; - uint8_t *pLine1, *pLine2, cVal; - int32_t nStride, nStride2, k; - int32_t 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); - 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; - uint8_t *pLine1, *pLine2, cVal; - int32_t nStride, nStride2, k; - int32_t 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; - uint8_t *pLine1, *pLine2, cVal; - int32_t nStride, nStride2, k; - int32_t 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; - uint8_t *pLine1, cVal; - int32_t nStride, k; - int32_t 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; -} diff --git a/core/src/fxcodec/jbig2/JBig2_GeneralDecoder.h b/core/src/fxcodec/jbig2/JBig2_GeneralDecoder.h deleted file mode 100644 index a1394d342f..0000000000 --- a/core/src/fxcodec/jbig2/JBig2_GeneralDecoder.h +++ /dev/null @@ -1,285 +0,0 @@ -// 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 - -#ifndef _JBIG2_GENERAL_DECODER_H_ -#define _JBIG2_GENERAL_DECODER_H_ - -#include "../../../include/fxcodec/fx_codec_def.h" -#include "../../../include/fxcrt/fx_coordinates.h" -#include "JBig2_ArithDecoder.h" -#include "JBig2_ArithIntDecoder.h" -#include "JBig2_Define.h" -#include "JBig2_SymbolDict.h" - -class CJBig2_HuffmanTable; -class CJBig2_Image; -class CJBig2_PatternDict; - -enum JBig2Corner { - JBIG2_CORNER_BOTTOMLEFT = 0, - JBIG2_CORNER_TOPLEFT = 1, - JBIG2_CORNER_BOTTOMRIGHT = 2, - JBIG2_CORNER_TOPRIGHT = 3 -}; - -class CJBig2_GRDProc { - public: - CJBig2_GRDProc() { - m_loopIndex = 0; - m_pLine = NULL; - m_pPause = NULL; - m_DecodeType = 0; - LTP = 0; - m_ReplaceRect.left = 0; - m_ReplaceRect.bottom = 0; - m_ReplaceRect.top = 0; - m_ReplaceRect.right = 0; - } - - CJBig2_Image* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - FXCODEC_STATUS Start_decode_Arith(CJBig2_Image** pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause = NULL); - FXCODEC_STATUS Start_decode_MMR(CJBig2_Image** pImage, - CJBig2_BitStream* pStream, - IFX_Pause* pPause = NULL); - FXCODEC_STATUS Continue_decode(IFX_Pause* pPause); - FX_RECT GetReplaceRect() { return m_ReplaceRect; } - - FX_BOOL MMR; - FX_DWORD GBW; - FX_DWORD GBH; - uint8_t GBTEMPLATE; - FX_BOOL TPGDON; - FX_BOOL USESKIP; - CJBig2_Image* SKIP; - int8_t GBAT[8]; - - private: - bool UseTemplate0Opt3() const; - bool UseTemplate1Opt3() const; - bool UseTemplate23Opt3() const; - - FXCODEC_STATUS decode_Arith(IFX_Pause* pPause); - FXCODEC_STATUS decode_Arith_Template0_opt3(CJBig2_Image* pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - FXCODEC_STATUS decode_Arith_Template0_unopt( - CJBig2_Image* pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - FXCODEC_STATUS decode_Arith_Template1_opt3(CJBig2_Image* pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - FXCODEC_STATUS decode_Arith_Template1_unopt( - CJBig2_Image* pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - FXCODEC_STATUS decode_Arith_Template2_opt3(CJBig2_Image* pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - FXCODEC_STATUS decode_Arith_Template2_unopt( - CJBig2_Image* pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - FXCODEC_STATUS decode_Arith_Template3_opt3(CJBig2_Image* pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - FXCODEC_STATUS decode_Arith_Template3_unopt( - CJBig2_Image* pImage, - CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - CJBig2_Image* decode_Arith_Template0_opt3(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - CJBig2_Image* decode_Arith_Template0_unopt(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - CJBig2_Image* decode_Arith_Template1_opt3(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - CJBig2_Image* decode_Arith_Template1_unopt(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - CJBig2_Image* decode_Arith_Template2_opt3(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - CJBig2_Image* decode_Arith_Template2_unopt(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - CJBig2_Image* decode_Arith_Template3_opt3(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - CJBig2_Image* decode_Arith_Template3_unopt(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext); - - FX_DWORD m_loopIndex; - uint8_t* m_pLine; - IFX_Pause* m_pPause; - FXCODEC_STATUS m_ProssiveStatus; - CJBig2_Image** m_pImage; - CJBig2_ArithDecoder* m_pArithDecoder; - JBig2ArithCtx* m_gbContext; - FX_WORD m_DecodeType; - FX_BOOL LTP; - FX_RECT m_ReplaceRect; -}; - -class CJBig2_GRRDProc { - public: - CJBig2_Image* decode(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext); - - CJBig2_Image* decode_Template0_unopt(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext); - - CJBig2_Image* decode_Template0_opt(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext); - - CJBig2_Image* decode_Template1_unopt(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext); - - CJBig2_Image* decode_Template1_opt(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext); - - FX_DWORD GRW; - FX_DWORD GRH; - FX_BOOL GRTEMPLATE; - CJBig2_Image* GRREFERENCE; - int32_t GRREFERENCEDX; - int32_t GRREFERENCEDY; - FX_BOOL TPGRON; - int8_t GRAT[4]; -}; - -typedef struct { - CJBig2_ArithIntDecoder *IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH, - *IARDX, *IARDY; - CJBig2_ArithIaidDecoder* IAID; -} JBig2IntDecoderState; - -class CJBig2_TRDProc { - public: - CJBig2_Image* decode_Huffman(CJBig2_BitStream* pStream, - JBig2ArithCtx* grContext); - - CJBig2_Image* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* grContext, - JBig2IntDecoderState* pIDS = NULL); - - public: - FX_BOOL SBHUFF; - FX_BOOL SBREFINE; - FX_DWORD SBW; - FX_DWORD SBH; - FX_DWORD SBNUMINSTANCES; - FX_DWORD SBSTRIPS; - FX_DWORD SBNUMSYMS; - - JBig2HuffmanCode* SBSYMCODES; - uint8_t SBSYMCODELEN; - - CJBig2_Image** SBSYMS; - FX_BOOL SBDEFPIXEL; - - JBig2ComposeOp SBCOMBOP; - FX_BOOL TRANSPOSED; - - JBig2Corner REFCORNER; - int8_t SBDSOFFSET; - CJBig2_HuffmanTable *SBHUFFFS, *SBHUFFDS, *SBHUFFDT, *SBHUFFRDW, *SBHUFFRDH, - *SBHUFFRDX, *SBHUFFRDY, *SBHUFFRSIZE; - FX_BOOL SBRTEMPLATE; - int8_t SBRAT[4]; -}; -class CJBig2_SDDProc { - public: - CJBig2_SymbolDict* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - JBig2ArithCtx* grContext); - - CJBig2_SymbolDict* decode_Huffman(CJBig2_BitStream* pStream, - JBig2ArithCtx* gbContext, - JBig2ArithCtx* grContext, - IFX_Pause* pPause); - - public: - FX_BOOL SDHUFF; - FX_BOOL SDREFAGG; - FX_DWORD SDNUMINSYMS; - CJBig2_Image** SDINSYMS; - FX_DWORD SDNUMNEWSYMS; - FX_DWORD SDNUMEXSYMS; - CJBig2_HuffmanTable *SDHUFFDH, *SDHUFFDW, *SDHUFFBMSIZE, *SDHUFFAGGINST; - uint8_t SDTEMPLATE; - int8_t SDAT[8]; - FX_BOOL SDRTEMPLATE; - int8_t SDRAT[4]; -}; -class CJBig2_HTRDProc { - public: - CJBig2_Image* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - - CJBig2_Image* decode_MMR(CJBig2_BitStream* pStream, IFX_Pause* pPause); - - public: - FX_DWORD HBW, HBH; - FX_BOOL HMMR; - uint8_t HTEMPLATE; - FX_DWORD HNUMPATS; - CJBig2_Image** HPATS; - FX_BOOL HDEFPIXEL; - JBig2ComposeOp HCOMBOP; - FX_BOOL HENABLESKIP; - FX_DWORD HGW, HGH; - int32_t HGX, HGY; - FX_WORD HRX, HRY; - uint8_t HPW, HPH; -}; -class CJBig2_PDDProc { - public: - CJBig2_PatternDict* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - - CJBig2_PatternDict* decode_MMR(CJBig2_BitStream* pStream, IFX_Pause* pPause); - - public: - FX_BOOL HDMMR; - uint8_t HDPW, HDPH; - FX_DWORD GRAYMAX; - uint8_t HDTEMPLATE; -}; -class CJBig2_GSIDProc { - public: - FX_DWORD* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, - JBig2ArithCtx* gbContext, - IFX_Pause* pPause); - - FX_DWORD* decode_MMR(CJBig2_BitStream* pStream, IFX_Pause* pPause); - - public: - FX_BOOL GSMMR; - FX_BOOL GSUSESKIP; - uint8_t GSBPP; - FX_DWORD GSW, GSH; - uint8_t GSTEMPLATE; - CJBig2_Image* GSKIP; -}; -#endif diff --git a/core/src/fxcodec/jbig2/JBig2_GrdProc.cpp b/core/src/fxcodec/jbig2/JBig2_GrdProc.cpp new file mode 100644 index 0000000000..5eb0570e72 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_GrdProc.cpp @@ -0,0 +1,1257 @@ +// Copyright 2015 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_GrdProc.h" + +#include "../../../../third_party/base/nonstd_unique_ptr.h" +#include "JBig2_ArithDecoder.h" +#include "JBig2_BitStream.h" +#include "JBig2_Image.h" + +CJBig2_GRDProc::CJBig2_GRDProc() + : m_loopIndex(0), + m_pLine(nullptr), + m_pPause(nullptr), + m_DecodeType(0), + LTP(0) { + m_ReplaceRect.left = 0; + m_ReplaceRect.bottom = 0; + m_ReplaceRect.top = 0; + m_ReplaceRect.right = 0; +} + +bool CJBig2_GRDProc::UseTemplate0Opt3() const { + return (GBAT[0] == 3) && (GBAT[1] == -1) && (GBAT[2] == -3) && + (GBAT[3] == -1) && (GBAT[4] == 2) && (GBAT[5] == -2) && + (GBAT[6] == -2) && (GBAT[7] == -2); +} + +bool CJBig2_GRDProc::UseTemplate1Opt3() const { + return (GBAT[0] == 3) && (GBAT[1] == -1); +} + +bool CJBig2_GRDProc::UseTemplate23Opt3() const { + return (GBAT[0] == 2) && (GBAT[1] == -1); +} + +CJBig2_Image* CJBig2_GRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + if (GBW == 0 || GBH == 0) + return new CJBig2_Image(GBW, GBH); + + if (GBTEMPLATE == 0) { + if (UseTemplate0Opt3()) + return decode_Arith_Template0_opt3(pArithDecoder, gbContext); + return decode_Arith_Template0_unopt(pArithDecoder, gbContext); + } else if (GBTEMPLATE == 1) { + if (UseTemplate1Opt3()) + return decode_Arith_Template1_opt3(pArithDecoder, gbContext); + return decode_Arith_Template1_unopt(pArithDecoder, gbContext); + } else if (GBTEMPLATE == 2) { + if (UseTemplate23Opt3()) + return decode_Arith_Template2_opt3(pArithDecoder, gbContext); + return decode_Arith_Template2_unopt(pArithDecoder, gbContext); + } else { + if (UseTemplate23Opt3()) + return decode_Arith_Template3_opt3(pArithDecoder, gbContext); + return decode_Arith_Template3_unopt(pArithDecoder, gbContext); + } +} +CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_opt3( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line2; + uint8_t* pLine, *pLine1, *pLine2, cVal; + int32_t nStride, nStride2, k; + int32_t nLineBytes, nBitsLeft, cc; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH)); + if (!GBREG->m_pData) + return nullptr; + + 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.release(); +} + +CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_unopt( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line2, line3; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GBREG(new 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.release(); +} + +CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_opt3( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line2; + uint8_t* pLine, *pLine1, *pLine2, cVal; + int32_t nStride, nStride2, k; + int32_t nLineBytes, nBitsLeft, cc; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH)); + if (!GBREG->m_pData) + return nullptr; + + 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.release(); +} + +CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_unopt( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line2, line3; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GBREG(new 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.release(); +} +CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_opt3( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line2; + uint8_t* pLine, *pLine1, *pLine2, cVal; + int32_t nStride, nStride2, k; + int32_t nLineBytes, nBitsLeft, cc; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH)); + if (!GBREG->m_pData) + return nullptr; + + 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.release(); +} + +CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_unopt( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line2, line3; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GBREG(new 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.release(); +} + +CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template3_opt3( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1; + uint8_t* pLine, *pLine1, cVal; + int32_t nStride, k; + int32_t nLineBytes, nBitsLeft, cc; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH)); + if (!GBREG->m_pData) + return nullptr; + + 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.release(); +} + +CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template3_unopt( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line2; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GBREG(new 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.release(); +} + +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) + *pImage = new CJBig2_Image(GBW, GBH); + if (!(*pImage)->m_pData) { + delete *pImage; + *pImage = nullptr; + 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 = nullptr; + 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 (UseTemplate0Opt3()) { + 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 (UseTemplate1Opt3()) { + 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 (UseTemplate23Opt3()) { + 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 (UseTemplate23Opt3()) { + 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_MMR(CJBig2_Image** pImage, + CJBig2_BitStream* pStream, + IFX_Pause* pPause) { + int bitpos, i; + *pImage = new CJBig2_Image(GBW, GBH); + if (!(*pImage)->m_pData) { + delete (*pImage); + (*pImage) = nullptr; + m_ProssiveStatus = FXCODEC_STATUS_ERROR; + return m_ProssiveStatus; + } + bitpos = (int)pStream->getBitPos(); + _FaxG4Decode(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::Continue_decode(IFX_Pause* pPause) { + if (m_ProssiveStatus != FXCODEC_STATUS_DECODE_TOBECONTINUE) + return m_ProssiveStatus; + + if (m_DecodeType != 1) { + m_ProssiveStatus = FXCODEC_STATUS_ERROR; + return m_ProssiveStatus; + } + + return decode_Arith(pPause); +} + +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; + uint8_t* pLine1, *pLine2, cVal; + int32_t nStride, nStride2, k; + int32_t 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); + 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; + uint8_t* pLine1, *pLine2, cVal; + int32_t nStride, nStride2, k; + int32_t 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; + uint8_t* pLine1, *pLine2, cVal; + int32_t nStride, nStride2, k; + int32_t 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; + uint8_t* pLine1, cVal; + int32_t nStride, k; + int32_t 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; +} diff --git a/core/src/fxcodec/jbig2/JBig2_GrdProc.h b/core/src/fxcodec/jbig2/JBig2_GrdProc.h new file mode 100644 index 0000000000..6729e22eed --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_GrdProc.h @@ -0,0 +1,124 @@ +// Copyright 2015 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 + +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_GRDPROC_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_GRDPROC_H_ + +#include "../../../core/include/fxcrt/fx_system.h" +#include "../../../include/fxcodec/fx_codec_def.h" +#include "../../../include/fxcrt/fx_coordinates.h" + +class CJBig2_ArithDecoder; +class CJBig2_BitStream; +class CJBig2_Image; +class IFX_Pause; +struct JBig2ArithCtx; + +class CJBig2_GRDProc { + public: + CJBig2_GRDProc(); + + CJBig2_Image* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + FXCODEC_STATUS Start_decode_Arith(CJBig2_Image** pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + FXCODEC_STATUS Start_decode_MMR(CJBig2_Image** pImage, + CJBig2_BitStream* pStream, + IFX_Pause* pPause); + FXCODEC_STATUS Continue_decode(IFX_Pause* pPause); + FX_RECT GetReplaceRect() const { return m_ReplaceRect; } + + FX_BOOL MMR; + FX_DWORD GBW; + FX_DWORD GBH; + uint8_t GBTEMPLATE; + FX_BOOL TPGDON; + FX_BOOL USESKIP; + CJBig2_Image* SKIP; + int8_t GBAT[8]; + + private: + bool UseTemplate0Opt3() const; + bool UseTemplate1Opt3() const; + bool UseTemplate23Opt3() const; + + FXCODEC_STATUS decode_Arith(IFX_Pause* pPause); + FXCODEC_STATUS decode_Arith_Template0_opt3(CJBig2_Image* pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + FXCODEC_STATUS decode_Arith_Template0_unopt( + CJBig2_Image* pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + FXCODEC_STATUS decode_Arith_Template1_opt3(CJBig2_Image* pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + FXCODEC_STATUS decode_Arith_Template1_unopt( + CJBig2_Image* pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + FXCODEC_STATUS decode_Arith_Template2_opt3(CJBig2_Image* pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + FXCODEC_STATUS decode_Arith_Template2_unopt( + CJBig2_Image* pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + FXCODEC_STATUS decode_Arith_Template3_opt3(CJBig2_Image* pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + FXCODEC_STATUS decode_Arith_Template3_unopt( + CJBig2_Image* pImage, + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + CJBig2_Image* decode_Arith_Template0_opt3(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + CJBig2_Image* decode_Arith_Template0_unopt(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + CJBig2_Image* decode_Arith_Template1_opt3(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + CJBig2_Image* decode_Arith_Template1_unopt(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + CJBig2_Image* decode_Arith_Template2_opt3(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + CJBig2_Image* decode_Arith_Template2_unopt(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + CJBig2_Image* decode_Arith_Template3_opt3(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + CJBig2_Image* decode_Arith_Template3_unopt(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext); + + FX_DWORD m_loopIndex; + uint8_t* m_pLine; + IFX_Pause* m_pPause; + FXCODEC_STATUS m_ProssiveStatus; + CJBig2_Image** m_pImage; + CJBig2_ArithDecoder* m_pArithDecoder; + JBig2ArithCtx* m_gbContext; + FX_WORD m_DecodeType; + FX_BOOL LTP; + FX_RECT m_ReplaceRect; +}; + +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_GRDPROC_H_ diff --git a/core/src/fxcodec/jbig2/JBig2_GrrdProc.cpp b/core/src/fxcodec/jbig2/JBig2_GrrdProc.cpp new file mode 100644 index 0000000000..916683c8aa --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_GrrdProc.cpp @@ -0,0 +1,515 @@ +// Copyright 2015 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_GrrdProc.h" + +#include "../../../../third_party/base/nonstd_unique_ptr.h" +#include "JBig2_ArithDecoder.h" +#include "JBig2_BitStream.h" +#include "JBig2_Image.h" + +CJBig2_Image* CJBig2_GRRDProc::decode(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext) { + if (GRW == 0 || GRH == 0) + return new CJBig2_Image(GRW, GRH); + + if (GRTEMPLATE == 0) { + if ((GRAT[0] == -1) && (GRAT[1] == -1) && (GRAT[2] == -1) && + (GRAT[3] == -1) && (GRREFERENCEDX == 0) && + (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { + return decode_Template0_opt(pArithDecoder, grContext); + } + return decode_Template0_unopt(pArithDecoder, grContext); + } + + if ((GRREFERENCEDX == 0) && (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) + return decode_Template1_opt(pArithDecoder, grContext); + 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; + FX_DWORD line1, line2, line3, line4, line5; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GRREG(new 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.release(); +} + +CJBig2_Image* CJBig2_GRRDProc::decode_Template0_opt( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext) { + if (!GRREFERENCE->m_pData) + return nullptr; + + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line1_r, line2_r, line3_r; + uint8_t* pLine, *pLineR, cVal; + intptr_t nStride, nStrideR, nOffset; + int32_t k, nBits; + int32_t GRWR, GRHR; + int32_t GRW, GRH; + GRW = (int32_t)CJBig2_GRRDProc::GRW; + GRH = (int32_t)CJBig2_GRRDProc::GRH; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GRREG(new CJBig2_Image(GRW, GRH)); + if (!GRREG->m_pData) + return nullptr; + + pLine = GRREG->m_pData; + pLineR = GRREFERENCE->m_pData; + nStride = GRREG->m_nStride; + nStrideR = GRREFERENCE->m_nStride; + GRWR = (int32_t)GRREFERENCE->m_nWidth; + GRHR = (int32_t)GRREFERENCE->m_nHeight; + if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { + GRREFERENCEDY = 0; + } + nOffset = -GRREFERENCEDY * nStrideR; + for (int32_t h = 0; h < GRH; h++) { + if (TPGRON) { + SLTP = pArithDecoder->DECODE(&grContext[0x0010]); + LTP = LTP ^ SLTP; + } + line1 = (h > 0) ? pLine[-nStride] << 4 : 0; + int32_t 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 (int32_t 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 (int32_t 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.release(); +} + +CJBig2_Image* CJBig2_GRRDProc::decode_Template1_unopt( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext) { + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line2, line3, line4, line5; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GRREG(new 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.release(); +} + +CJBig2_Image* CJBig2_GRRDProc::decode_Template1_opt( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext) { + if (!GRREFERENCE->m_pData) + return nullptr; + + FX_BOOL LTP, SLTP, bVal; + FX_DWORD CONTEXT; + FX_DWORD line1, line1_r, line2_r, line3_r; + uint8_t* pLine, *pLineR, cVal; + intptr_t nStride, nStrideR, nOffset; + int32_t k, nBits; + int32_t GRWR, GRHR; + int32_t GRW, GRH; + GRW = (int32_t)CJBig2_GRRDProc::GRW; + GRH = (int32_t)CJBig2_GRRDProc::GRH; + LTP = 0; + nonstd::unique_ptr<CJBig2_Image> GRREG(new CJBig2_Image(GRW, GRH)); + if (!GRREG->m_pData) + return nullptr; + + pLine = GRREG->m_pData; + pLineR = GRREFERENCE->m_pData; + nStride = GRREG->m_nStride; + nStrideR = GRREFERENCE->m_nStride; + GRWR = (int32_t)GRREFERENCE->m_nWidth; + GRHR = (int32_t)GRREFERENCE->m_nHeight; + if (GRREFERENCEDY < -GRHR + 1 || GRREFERENCEDY > GRHR - 1) { + GRREFERENCEDY = 0; + } + nOffset = -GRREFERENCEDY * nStrideR; + for (int32_t h = 0; h < GRH; h++) { + if (TPGRON) { + SLTP = pArithDecoder->DECODE(&grContext[0x0008]); + LTP = LTP ^ SLTP; + } + line1 = (h > 0) ? pLine[-nStride] << 1 : 0; + int32_t 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 (int32_t 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 (int32_t 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.release(); +} diff --git a/core/src/fxcodec/jbig2/JBig2_GrrdProc.h b/core/src/fxcodec/jbig2/JBig2_GrrdProc.h new file mode 100644 index 0000000000..e6ebffaae4 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_GrrdProc.h @@ -0,0 +1,44 @@ +// Copyright 2015 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 + +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_GRRDPROC_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_GRRDPROC_H_ + +#include "../../../core/include/fxcrt/fx_system.h" + +class CJBig2_ArithDecoder; +class CJBig2_Image; +class IFX_Pause; +struct JBig2ArithCtx; + +class CJBig2_GRRDProc { + public: + CJBig2_Image* decode(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext); + + CJBig2_Image* decode_Template0_unopt(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext); + + CJBig2_Image* decode_Template0_opt(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext); + + CJBig2_Image* decode_Template1_unopt(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext); + + CJBig2_Image* decode_Template1_opt(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext); + + FX_DWORD GRW; + FX_DWORD GRH; + FX_BOOL GRTEMPLATE; + CJBig2_Image* GRREFERENCE; + int32_t GRREFERENCEDX; + int32_t GRREFERENCEDY; + FX_BOOL TPGRON; + int8_t GRAT[4]; +}; + +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_GRRDPROC_H_ diff --git a/core/src/fxcodec/jbig2/JBig2_GsidProc.cpp b/core/src/fxcodec/jbig2/JBig2_GsidProc.cpp new file mode 100644 index 0000000000..b97a212926 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_GsidProc.cpp @@ -0,0 +1,150 @@ +// Copyright 2015 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_GsidProc.h" + +#include "../../../../third_party/base/nonstd_unique_ptr.h" +#include "../../../include/fxcrt/fx_basic.h" +#include "JBig2_BitStream.h" +#include "JBig2_GrdProc.h" +#include "JBig2_Image.h" + +FX_DWORD* CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause) { + CJBig2_Image** GSPLANES; + int32_t J, K; + FX_DWORD x, y; + FX_DWORD* GSVALS; + GSPLANES = FX_Alloc(CJBig2_Image*, GSBPP); + GSVALS = FX_Alloc2D(FX_DWORD, GSW, GSH); + JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*) * GSBPP); + JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD) * GSW * GSH); + + nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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, nullptr); + while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { + pGRD->Continue_decode(pPause); + } + if (!GSPLANES[GSBPP - 1]) { + goto failed; + } + J = GSBPP - 2; + while (J >= 0) { + FXCODEC_STATUS status = pGRD->Start_decode_Arith( + &GSPLANES[J], pArithDecoder, gbContext, nullptr); + while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { + pGRD->Continue_decode(pPause); + } + if (!GSPLANES[J]) { + 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]; + } + FX_Free(GSPLANES); + return GSVALS; +failed: + FX_Free(GSPLANES); + FX_Free(GSVALS); + return nullptr; +} + +FX_DWORD* CJBig2_GSIDProc::decode_MMR(CJBig2_BitStream* pStream, + IFX_Pause* pPause) { + CJBig2_Image** GSPLANES; + int32_t J, K; + FX_DWORD x, y; + FX_DWORD* GSVALS; + GSPLANES = FX_Alloc(CJBig2_Image*, GSBPP); + GSVALS = FX_Alloc2D(FX_DWORD, GSW, GSH); + JBIG2_memset(GSPLANES, 0, sizeof(CJBig2_Image*) * GSBPP); + JBIG2_memset(GSVALS, 0, sizeof(FX_DWORD) * GSW * GSH); + + nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc()); + pGRD->MMR = GSMMR; + pGRD->GBW = GSW; + pGRD->GBH = GSH; + FXCODEC_STATUS status = + pGRD->Start_decode_MMR(&GSPLANES[GSBPP - 1], pStream, nullptr); + while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { + pGRD->Continue_decode(pPause); + } + if (!GSPLANES[GSBPP - 1]) { + goto failed; + } + pStream->alignByte(); + pStream->offset(3); + J = GSBPP - 2; + while (J >= 0) { + FXCODEC_STATUS status = + pGRD->Start_decode_MMR(&GSPLANES[J], pStream, nullptr); + while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { + pGRD->Continue_decode(pPause); + } + if (!GSPLANES[J]) { + 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]; + } + FX_Free(GSPLANES); + return GSVALS; +failed: + FX_Free(GSPLANES); + FX_Free(GSVALS); + return nullptr; +} diff --git a/core/src/fxcodec/jbig2/JBig2_GsidProc.h b/core/src/fxcodec/jbig2/JBig2_GsidProc.h new file mode 100644 index 0000000000..230c736dad --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_GsidProc.h @@ -0,0 +1,36 @@ +// Copyright 2015 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 + +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_GSIDPROC_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_GSIDPROC_H_ + +#include "../../../core/include/fxcrt/fx_system.h" + +class CJBig2_ArithDecoder; +class CJBig2_BitStream; +class CJBig2_Image; +class IFX_Pause; +struct JBig2ArithCtx; + +class CJBig2_GSIDProc { + public: + FX_DWORD* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + + FX_DWORD* decode_MMR(CJBig2_BitStream* pStream, IFX_Pause* pPause); + + public: + FX_BOOL GSMMR; + FX_BOOL GSUSESKIP; + uint8_t GSBPP; + FX_DWORD GSW; + FX_DWORD GSH; + uint8_t GSTEMPLATE; + CJBig2_Image* GSKIP; +}; + +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_GSIDPROC_H_ diff --git a/core/src/fxcodec/jbig2/JBig2_HtrdProc.cpp b/core/src/fxcodec/jbig2/JBig2_HtrdProc.cpp new file mode 100644 index 0000000000..a5a8b7abfe --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_HtrdProc.cpp @@ -0,0 +1,103 @@ +// Copyright 2015 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_HtrdProc.h" + +#include "../../../../third_party/base/nonstd_unique_ptr.h" +#include "../../../include/fxcrt/fx_basic.h" +#include "JBig2_GsidProc.h" + +CJBig2_Image* CJBig2_HTRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause) { + FX_DWORD ng, mg; + int32_t x, y; + FX_DWORD HBPP; + FX_DWORD* GI; + nonstd::unique_ptr<CJBig2_Image> HSKIP; + nonstd::unique_ptr<CJBig2_Image> HTREG(new CJBig2_Image(HBW, HBH)); + HTREG->fill(HDEFPIXEL); + if (HENABLESKIP == 1) { + HSKIP.reset(new 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 >= (int32_t)HBW) | (y + HPH <= 0) | + (y >= (int32_t)HPH)) { + HSKIP->setPixel(ng, mg, 1); + } else { + HSKIP->setPixel(ng, mg, 0); + } + } + } + } + HBPP = 1; + while ((FX_DWORD)(1 << HBPP) < HNUMPATS) { + HBPP++; + } + nonstd::unique_ptr<CJBig2_GSIDProc> pGID(new CJBig2_GSIDProc()); + pGID->GSMMR = HMMR; + pGID->GSW = HGW; + pGID->GSH = HGH; + pGID->GSBPP = (uint8_t)HBPP; + pGID->GSUSESKIP = HENABLESKIP; + pGID->GSKIP = HSKIP.get(); + pGID->GSTEMPLATE = HTEMPLATE; + GI = pGID->decode_Arith(pArithDecoder, gbContext, pPause); + if (!GI) + return nullptr; + + 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); + } + } + FX_Free(GI); + return HTREG.release(); +} + +CJBig2_Image* CJBig2_HTRDProc::decode_MMR(CJBig2_BitStream* pStream, + IFX_Pause* pPause) { + FX_DWORD ng, mg; + int32_t x, y; + FX_DWORD* GI; + nonstd::unique_ptr<CJBig2_Image> HTREG(new CJBig2_Image(HBW, HBH)); + HTREG->fill(HDEFPIXEL); + FX_DWORD HBPP = 1; + while ((FX_DWORD)(1 << HBPP) < HNUMPATS) { + HBPP++; + } + nonstd::unique_ptr<CJBig2_GSIDProc> pGID(new CJBig2_GSIDProc()); + pGID->GSMMR = HMMR; + pGID->GSW = HGW; + pGID->GSH = HGH; + pGID->GSBPP = (uint8_t)HBPP; + pGID->GSUSESKIP = 0; + GI = pGID->decode_MMR(pStream, pPause); + if (!GI) + return nullptr; + + 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); + } + } + FX_Free(GI); + return HTREG.release(); +} diff --git a/core/src/fxcodec/jbig2/JBig2_HtrdProc.h b/core/src/fxcodec/jbig2/JBig2_HtrdProc.h new file mode 100644 index 0000000000..bea9494158 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_HtrdProc.h @@ -0,0 +1,47 @@ +// Copyright 2015 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 + +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_HTRDPROC_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_HTRDPROC_H_ + +#include "../../../core/include/fxcrt/fx_system.h" + +#include "JBig2_Image.h" + +class CJBig2_ArithDecoder; +class CJBig2_BitStream; +class IFX_Pause; +struct JBig2ArithCtx; + +class CJBig2_HTRDProc { + public: + CJBig2_Image* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + + CJBig2_Image* decode_MMR(CJBig2_BitStream* pStream, IFX_Pause* pPause); + + public: + FX_DWORD HBW; + FX_DWORD HBH; + FX_BOOL HMMR; + uint8_t HTEMPLATE; + FX_DWORD HNUMPATS; + CJBig2_Image** HPATS; + FX_BOOL HDEFPIXEL; + JBig2ComposeOp HCOMBOP; + FX_BOOL HENABLESKIP; + FX_DWORD HGW; + FX_DWORD HGH; + int32_t HGX; + int32_t HGY; + FX_WORD HRX; + FX_WORD HRY; + uint8_t HPW; + uint8_t HPH; +}; + +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_HTRDPROC_H_ diff --git a/core/src/fxcodec/jbig2/JBig2_PddProc.cpp b/core/src/fxcodec/jbig2/JBig2_PddProc.cpp new file mode 100644 index 0000000000..56443a01d2 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_PddProc.cpp @@ -0,0 +1,86 @@ +// Copyright 2015 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_PddProc.h" + +#include "../../../../third_party/base/nonstd_unique_ptr.h" +#include "JBig2_GrdProc.h" +#include "JBig2_Image.h" +#include "JBig2_PatternDict.h" + +CJBig2_PatternDict* CJBig2_PDDProc::decode_Arith( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause) { + FX_DWORD GRAY; + CJBig2_Image* BHDC = nullptr; + nonstd::unique_ptr<CJBig2_PatternDict> pDict(new CJBig2_PatternDict()); + pDict->NUMPATS = GRAYMAX + 1; + pDict->HDPATS = FX_Alloc(CJBig2_Image*, pDict->NUMPATS); + JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*) * pDict->NUMPATS); + + nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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] = -(int32_t)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, nullptr); + while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { + pGRD->Continue_decode(pPause); + } + if (!BHDC) + return nullptr; + + GRAY = 0; + while (GRAY <= GRAYMAX) { + pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); + GRAY = GRAY + 1; + } + delete BHDC; + return pDict.release(); +} + +CJBig2_PatternDict* CJBig2_PDDProc::decode_MMR(CJBig2_BitStream* pStream, + IFX_Pause* pPause) { + FX_DWORD GRAY; + CJBig2_Image* BHDC = nullptr; + nonstd::unique_ptr<CJBig2_PatternDict> pDict(new CJBig2_PatternDict()); + pDict->NUMPATS = GRAYMAX + 1; + pDict->HDPATS = FX_Alloc(CJBig2_Image*, pDict->NUMPATS); + JBIG2_memset(pDict->HDPATS, 0, sizeof(CJBig2_Image*) * pDict->NUMPATS); + + nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc()); + pGRD->MMR = HDMMR; + pGRD->GBW = (GRAYMAX + 1) * HDPW; + pGRD->GBH = HDPH; + FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHDC, pStream, nullptr); + while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { + pGRD->Continue_decode(pPause); + } + if (!BHDC) + return nullptr; + + GRAY = 0; + while (GRAY <= GRAYMAX) { + pDict->HDPATS[GRAY] = BHDC->subImage(HDPW * GRAY, 0, HDPW, HDPH); + GRAY = GRAY + 1; + } + delete BHDC; + return pDict.release(); +} diff --git a/core/src/fxcodec/jbig2/JBig2_PddProc.h b/core/src/fxcodec/jbig2/JBig2_PddProc.h new file mode 100644 index 0000000000..59261555c0 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_PddProc.h @@ -0,0 +1,34 @@ +// Copyright 2015 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 + +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_PDDPROC_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_PDDPROC_H_ + +#include "../../../core/include/fxcrt/fx_system.h" + +class CJBig2_ArithDecoder; +class CJBig2_BitStream; +class CJBig2_PatternDict; +class IFX_Pause; +struct JBig2ArithCtx; + +class CJBig2_PDDProc { + public: + CJBig2_PatternDict* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + IFX_Pause* pPause); + + CJBig2_PatternDict* decode_MMR(CJBig2_BitStream* pStream, IFX_Pause* pPause); + + public: + FX_BOOL HDMMR; + uint8_t HDPW; + uint8_t HDPH; + FX_DWORD GRAYMAX; + uint8_t HDTEMPLATE; +}; + +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_PDDPROC_H_ diff --git a/core/src/fxcodec/jbig2/JBig2_SddProc.cpp b/core/src/fxcodec/jbig2/JBig2_SddProc.cpp new file mode 100644 index 0000000000..ae5635b462 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_SddProc.cpp @@ -0,0 +1,651 @@ +// Copyright 2015 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_SddProc.h" + +#include "../../../../third_party/base/nonstd_unique_ptr.h" +#include "../../../include/fxcrt/fx_basic.h" +#include "JBig2_ArithIntDecoder.h" +#include "JBig2_GrdProc.h" +#include "JBig2_GrrdProc.h" +#include "JBig2_HuffmanDecoder.h" +#include "JBig2_HuffmanTable.h" +#include "JBig2_SymbolDict.h" +#include "JBig2_TrdProc.h" + +CJBig2_SymbolDict* CJBig2_SDDProc::decode_Arith( + CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + JBig2ArithCtx* grContext) { + CJBig2_Image** SDNEWSYMS; + FX_DWORD HCHEIGHT, NSYMSDECODED; + int32_t HCDH; + FX_DWORD SYMWIDTH, TOTWIDTH; + int32_t DW; + CJBig2_Image* BS; + FX_DWORD I, J, REFAGGNINST; + FX_BOOL* EXFLAGS; + FX_DWORD EXINDEX; + FX_BOOL CUREXFLAG; + FX_DWORD EXRUNLENGTH; + int32_t nVal; + FX_DWORD nTmp; + FX_DWORD SBNUMSYMS; + uint8_t SBSYMCODELEN; + FX_DWORD IDI; + int32_t RDXI, RDYI; + CJBig2_Image** SBSYMS; + nonstd::unique_ptr<CJBig2_ArithIaidDecoder> IAID; + nonstd::unique_ptr<CJBig2_SymbolDict> pDict; + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IADH(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IADW(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IAAI(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARDX(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARDY(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IAEX(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IADT(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IAFS(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IADS(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IAIT(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARI(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARDW(new CJBig2_ArithIntDecoder); + nonstd::unique_ptr<CJBig2_ArithIntDecoder> IARDH(new CJBig2_ArithIntDecoder); + nTmp = 0; + while ((FX_DWORD)(1 << nTmp) < (SDNUMINSYMS + SDNUMNEWSYMS)) { + nTmp++; + } + IAID.reset(new CJBig2_ArithIaidDecoder((uint8_t)nTmp)); + SDNEWSYMS = FX_Alloc(CJBig2_Image*, SDNUMNEWSYMS); + FXSYS_memset(SDNEWSYMS, 0, SDNUMNEWSYMS * sizeof(CJBig2_Image*)); + + HCHEIGHT = 0; + NSYMSDECODED = 0; + while (NSYMSDECODED < SDNUMNEWSYMS) { + BS = nullptr; + if (IADH->decode(pArithDecoder, &HCDH) == -1) { + goto failed; + } + HCHEIGHT = HCHEIGHT + HCDH; + if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { + goto failed; + } + SYMWIDTH = 0; + TOTWIDTH = 0; + for (;;) { + nVal = IADW->decode(pArithDecoder, &DW); + if (nVal == JBIG2_OOB) { + break; + } else if (nVal != 0) { + goto failed; + } else { + if (NSYMSDECODED >= SDNUMNEWSYMS) { + goto failed; + } + SYMWIDTH = SYMWIDTH + DW; + if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { + goto failed; + } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { + TOTWIDTH = TOTWIDTH + SYMWIDTH; + SDNEWSYMS[NSYMSDECODED] = nullptr; + NSYMSDECODED = NSYMSDECODED + 1; + continue; + } + TOTWIDTH = TOTWIDTH + SYMWIDTH; + } + if (SDREFAGG == 0) { + nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new 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) { + goto failed; + } + } else { + if (IAAI->decode(pArithDecoder, (int*)&REFAGGNINST) == -1) { + goto failed; + } + if (REFAGGNINST > 1) { + nonstd::unique_ptr<CJBig2_TRDProc> pDecoder(new 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 = (uint8_t)nTmp; + pDecoder->SBSYMCODELEN = SBSYMCODELEN; + SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS); + 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; + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFFS( + new CJBig2_HuffmanTable(HuffmanTable_B6, + FX_ArraySize(HuffmanTable_B6), + HuffmanTable_HTOOB_B6)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFDS( + new CJBig2_HuffmanTable(HuffmanTable_B8, + FX_ArraySize(HuffmanTable_B8), + HuffmanTable_HTOOB_B8)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFDT( + new CJBig2_HuffmanTable(HuffmanTable_B11, + FX_ArraySize(HuffmanTable_B11), + HuffmanTable_HTOOB_B11)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDW( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDH( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDY( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE( + new CJBig2_HuffmanTable(HuffmanTable_B1, + FX_ArraySize(HuffmanTable_B1), + HuffmanTable_HTOOB_B1)); + pDecoder->SBHUFFFS = SBHUFFFS.get(); + pDecoder->SBHUFFDS = SBHUFFDS.get(); + pDecoder->SBHUFFDT = SBHUFFDT.get(); + pDecoder->SBHUFFRDW = SBHUFFRDW.get(); + pDecoder->SBHUFFRDH = SBHUFFRDH.get(); + pDecoder->SBHUFFRDX = SBHUFFRDX.get(); + pDecoder->SBHUFFRDY = SBHUFFRDY.get(); + pDecoder->SBHUFFRSIZE = SBHUFFRSIZE.get(); + 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.get(); + ids.IAFS = IAFS.get(); + ids.IADS = IADS.get(); + ids.IAIT = IAIT.get(); + ids.IARI = IARI.get(); + ids.IARDW = IARDW.get(); + ids.IARDH = IARDH.get(); + ids.IARDX = IARDX.get(); + ids.IARDY = IARDY.get(); + ids.IAID = IAID.get(); + BS = pDecoder->decode_Arith(pArithDecoder, grContext, &ids); + if (!BS) { + FX_Free(SBSYMS); + goto failed; + } + FX_Free(SBSYMS); + } else if (REFAGGNINST == 1) { + SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED; + if (IAID->decode(pArithDecoder, (int*)&IDI) == -1) { + goto failed; + } + if ((IARDX->decode(pArithDecoder, &RDXI) == -1) || + (IARDY->decode(pArithDecoder, &RDYI) == -1)) { + goto failed; + } + if (IDI >= SBNUMSYMS) { + goto failed; + } + SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS); + JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); + JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, + NSYMSDECODED * sizeof(CJBig2_Image*)); + if (!SBSYMS[IDI]) { + FX_Free(SBSYMS); + goto failed; + } + nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new 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) { + FX_Free(SBSYMS); + goto failed; + } + FX_Free(SBSYMS); + } + } + SDNEWSYMS[NSYMSDECODED] = BS; + BS = nullptr; + NSYMSDECODED = NSYMSDECODED + 1; + } + } + EXINDEX = 0; + CUREXFLAG = 0; + EXFLAGS = FX_Alloc(FX_BOOL, SDNUMINSYMS + SDNUMNEWSYMS); + while (EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { + if (IAEX->decode(pArithDecoder, (int*)&EXRUNLENGTH) == -1) { + FX_Free(EXFLAGS); + goto failed; + } + if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { + FX_Free(EXFLAGS); + goto failed; + } + if (EXRUNLENGTH != 0) { + for (I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { + EXFLAGS[I] = CUREXFLAG; + } + } + EXINDEX = EXINDEX + EXRUNLENGTH; + CUREXFLAG = !CUREXFLAG; + } + pDict.reset(new CJBig2_SymbolDict); + pDict->SDNUMEXSYMS = SDNUMEXSYMS; + pDict->SDEXSYMS = FX_Alloc(CJBig2_Image*, SDNUMEXSYMS); + I = J = 0; + for (I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { + if (EXFLAGS[I] && J < SDNUMEXSYMS) { + if (I < SDNUMINSYMS) { + pDict->SDEXSYMS[J] = new 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; + } + FX_Free(EXFLAGS); + FX_Free(SDNEWSYMS); + return pDict.release(); +failed: + for (I = 0; I < NSYMSDECODED; I++) { + if (SDNEWSYMS[I]) { + delete SDNEWSYMS[I]; + SDNEWSYMS[I] = nullptr; + } + } + FX_Free(SDNEWSYMS); + return nullptr; +} + +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; + int32_t HCDH; + FX_DWORD SYMWIDTH, TOTWIDTH, HCFIRSTSYM; + int32_t DW; + CJBig2_Image* BS, *BHC; + FX_DWORD I, J, REFAGGNINST; + FX_BOOL* EXFLAGS; + FX_DWORD EXINDEX; + FX_BOOL CUREXFLAG; + FX_DWORD EXRUNLENGTH; + int32_t nVal, nBits; + FX_DWORD nTmp; + FX_DWORD SBNUMSYMS; + uint8_t SBSYMCODELEN; + JBig2HuffmanCode* SBSYMCODES; + FX_DWORD IDI; + int32_t RDXI, RDYI; + FX_DWORD BMSIZE; + FX_DWORD stride; + CJBig2_Image** SBSYMS; + nonstd::unique_ptr<CJBig2_HuffmanDecoder> pHuffmanDecoder( + new CJBig2_HuffmanDecoder(pStream)); + SDNEWSYMS = FX_Alloc(CJBig2_Image*, SDNUMNEWSYMS); + FXSYS_memset(SDNEWSYMS, 0, SDNUMNEWSYMS * sizeof(CJBig2_Image*)); + SDNEWSYMWIDTHS = nullptr; + BHC = nullptr; + if (SDREFAGG == 0) { + SDNEWSYMWIDTHS = FX_Alloc(FX_DWORD, SDNUMNEWSYMS); + FXSYS_memset(SDNEWSYMWIDTHS, 0, SDNUMNEWSYMS * sizeof(FX_DWORD)); + } + nonstd::unique_ptr<CJBig2_SymbolDict> pDict(new CJBig2_SymbolDict()); + nonstd::unique_ptr<CJBig2_HuffmanTable> pTable; + + HCHEIGHT = 0; + NSYMSDECODED = 0; + BS = nullptr; + while (NSYMSDECODED < SDNUMNEWSYMS) { + if (pHuffmanDecoder->decodeAValue(SDHUFFDH, &HCDH) != 0) { + goto failed; + } + HCHEIGHT = HCHEIGHT + HCDH; + if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) { + goto failed; + } + SYMWIDTH = 0; + TOTWIDTH = 0; + HCFIRSTSYM = NSYMSDECODED; + for (;;) { + nVal = pHuffmanDecoder->decodeAValue(SDHUFFDW, &DW); + if (nVal == JBIG2_OOB) { + break; + } else if (nVal != 0) { + goto failed; + } else { + if (NSYMSDECODED >= SDNUMNEWSYMS) { + goto failed; + } + SYMWIDTH = SYMWIDTH + DW; + if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) { + goto failed; + } else if (HCHEIGHT == 0 || SYMWIDTH == 0) { + TOTWIDTH = TOTWIDTH + SYMWIDTH; + SDNEWSYMS[NSYMSDECODED] = nullptr; + NSYMSDECODED = NSYMSDECODED + 1; + continue; + } + TOTWIDTH = TOTWIDTH + SYMWIDTH; + } + if (SDREFAGG == 1) { + if (pHuffmanDecoder->decodeAValue(SDHUFFAGGINST, (int*)&REFAGGNINST) != + 0) { + goto failed; + } + BS = nullptr; + if (REFAGGNINST > 1) { + nonstd::unique_ptr<CJBig2_TRDProc> pDecoder(new 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 = FX_Alloc(JBig2HuffmanCode, SBNUMSYMS); + 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 = FX_Alloc(CJBig2_Image*, SBNUMSYMS); + 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; + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFFS( + new CJBig2_HuffmanTable(HuffmanTable_B6, + FX_ArraySize(HuffmanTable_B6), + HuffmanTable_HTOOB_B6)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFDS( + new CJBig2_HuffmanTable(HuffmanTable_B8, + FX_ArraySize(HuffmanTable_B8), + HuffmanTable_HTOOB_B8)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFDT( + new CJBig2_HuffmanTable(HuffmanTable_B11, + FX_ArraySize(HuffmanTable_B11), + HuffmanTable_HTOOB_B11)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDW( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDH( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDY( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE( + new CJBig2_HuffmanTable(HuffmanTable_B1, + FX_ArraySize(HuffmanTable_B1), + HuffmanTable_HTOOB_B1)); + pDecoder->SBHUFFFS = SBHUFFFS.get(); + pDecoder->SBHUFFDS = SBHUFFDS.get(); + pDecoder->SBHUFFDT = SBHUFFDT.get(); + pDecoder->SBHUFFRDW = SBHUFFRDW.get(); + pDecoder->SBHUFFRDH = SBHUFFRDH.get(); + pDecoder->SBHUFFRDX = SBHUFFRDX.get(); + pDecoder->SBHUFFRDY = SBHUFFRDY.get(); + pDecoder->SBHUFFRSIZE = SBHUFFRSIZE.get(); + 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) { + FX_Free(SBSYMCODES); + FX_Free(SBSYMS); + goto failed; + } + FX_Free(SBSYMCODES); + FX_Free(SBSYMS); + } else if (REFAGGNINST == 1) { + SBNUMSYMS = SDNUMINSYMS + SDNUMNEWSYMS; + nTmp = 1; + while ((FX_DWORD)(1 << nTmp) < SBNUMSYMS) { + nTmp++; + } + SBSYMCODELEN = (uint8_t)nTmp; + SBSYMCODES = FX_Alloc(JBig2HuffmanCode, SBNUMSYMS); + for (I = 0; I < SBNUMSYMS; I++) { + SBSYMCODES[I].codelen = SBSYMCODELEN; + SBSYMCODES[I].code = I; + } + nVal = 0; + nBits = 0; + for (;;) { + if (pStream->read1Bit(&nTmp) != 0) { + FX_Free(SBSYMCODES); + 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; + } + } + FX_Free(SBSYMCODES); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX( + new CJBig2_HuffmanTable(HuffmanTable_B15, + FX_ArraySize(HuffmanTable_B15), + HuffmanTable_HTOOB_B15)); + nonstd::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE( + new CJBig2_HuffmanTable(HuffmanTable_B1, + FX_ArraySize(HuffmanTable_B1), + HuffmanTable_HTOOB_B1)); + if ((pHuffmanDecoder->decodeAValue(SBHUFFRDX.get(), &RDXI) != 0) || + (pHuffmanDecoder->decodeAValue(SBHUFFRDX.get(), &RDYI) != 0) || + (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE.get(), &nVal) != 0)) { + goto failed; + } + pStream->alignByte(); + nTmp = pStream->getOffset(); + SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS); + JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*)); + JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS, + NSYMSDECODED * sizeof(CJBig2_Image*)); + nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new 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]; + nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder( + new CJBig2_ArithDecoder(pStream)); + BS = pGRRD->decode(pArithDecoder.get(), grContext); + if (!BS) { + FX_Free(SBSYMS); + goto failed; + } + pStream->alignByte(); + pStream->offset(2); + if ((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { + delete BS; + FX_Free(SBSYMS); + goto failed; + } + FX_Free(SBSYMS); + } + SDNEWSYMS[NSYMSDECODED] = BS; + } + if (SDREFAGG == 0) { + SDNEWSYMWIDTHS[NSYMSDECODED] = SYMWIDTH; + } + NSYMSDECODED = NSYMSDECODED + 1; + } + if (SDREFAGG == 0) { + if (pHuffmanDecoder->decodeAValue(SDHUFFBMSIZE, (int32_t*)&BMSIZE) != 0) { + goto failed; + } + pStream->alignByte(); + if (BMSIZE == 0) { + stride = (TOTWIDTH + 7) >> 3; + if (pStream->getByteLeft() >= stride * HCHEIGHT) { + BHC = new 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 { + goto failed; + } + } else { + nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc()); + pGRD->MMR = 1; + pGRD->GBW = TOTWIDTH; + pGRD->GBH = HCHEIGHT; + FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHC, pStream, nullptr); + while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) { + pGRD->Continue_decode(pPause); + } + 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 = nullptr; + } + } + EXINDEX = 0; + CUREXFLAG = 0; + pTable.reset(new CJBig2_HuffmanTable( + HuffmanTable_B1, FX_ArraySize(HuffmanTable_B1), HuffmanTable_HTOOB_B1)); + EXFLAGS = FX_Alloc(FX_BOOL, SDNUMINSYMS + SDNUMNEWSYMS); + while (EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) { + if (pHuffmanDecoder->decodeAValue(pTable.get(), (int*)&EXRUNLENGTH) != 0) { + FX_Free(EXFLAGS); + goto failed; + } + if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) { + FX_Free(EXFLAGS); + goto failed; + } + if (EXRUNLENGTH != 0) { + for (I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) { + EXFLAGS[I] = CUREXFLAG; + } + } + EXINDEX = EXINDEX + EXRUNLENGTH; + CUREXFLAG = !CUREXFLAG; + } + pDict->SDNUMEXSYMS = SDNUMEXSYMS; + pDict->SDEXSYMS = FX_Alloc(CJBig2_Image*, SDNUMEXSYMS); + I = J = 0; + for (I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) { + if (EXFLAGS[I] && J < SDNUMEXSYMS) { + if (I < SDNUMINSYMS) { + pDict->SDEXSYMS[J] = new 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; + } + FX_Free(EXFLAGS); + FX_Free(SDNEWSYMS); + if (SDREFAGG == 0) { + FX_Free(SDNEWSYMWIDTHS); + } + return pDict.release(); +failed: + for (I = 0; I < NSYMSDECODED; I++) { + delete SDNEWSYMS[I]; + } + FX_Free(SDNEWSYMS); + if (SDREFAGG == 0) { + FX_Free(SDNEWSYMWIDTHS); + } + return nullptr; +} diff --git a/core/src/fxcodec/jbig2/JBig2_SddProc.h b/core/src/fxcodec/jbig2/JBig2_SddProc.h new file mode 100644 index 0000000000..7bc910fea1 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_SddProc.h @@ -0,0 +1,48 @@ +// Copyright 2015 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 + +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_SDDPROC_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_SDDPROC_H_ + +#include "../../../core/include/fxcrt/fx_system.h" + +class CJBig2_ArithDecoder; +class CJBig2_BitStream; +class CJBig2_HuffmanTable; +class CJBig2_Image; +class CJBig2_SymbolDict; +class IFX_Pause; +struct JBig2ArithCtx; + +class CJBig2_SDDProc { + public: + CJBig2_SymbolDict* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* gbContext, + JBig2ArithCtx* grContext); + + CJBig2_SymbolDict* decode_Huffman(CJBig2_BitStream* pStream, + JBig2ArithCtx* gbContext, + JBig2ArithCtx* grContext, + IFX_Pause* pPause); + + public: + FX_BOOL SDHUFF; + FX_BOOL SDREFAGG; + FX_DWORD SDNUMINSYMS; + CJBig2_Image** SDINSYMS; + FX_DWORD SDNUMNEWSYMS; + FX_DWORD SDNUMEXSYMS; + CJBig2_HuffmanTable* SDHUFFDH; + CJBig2_HuffmanTable* SDHUFFDW; + CJBig2_HuffmanTable* SDHUFFBMSIZE; + CJBig2_HuffmanTable* SDHUFFAGGINST; + uint8_t SDTEMPLATE; + int8_t SDAT[8]; + FX_BOOL SDRTEMPLATE; + int8_t SDRAT[4]; +}; + +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_SDDPROC_H_ diff --git a/core/src/fxcodec/jbig2/JBig2_TrdProc.cpp b/core/src/fxcodec/jbig2/JBig2_TrdProc.cpp new file mode 100644 index 0000000000..afa3dba920 --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_TrdProc.cpp @@ -0,0 +1,438 @@ +// Copyright 2015 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_TrdProc.h" + +#include "../../../../third_party/base/nonstd_unique_ptr.h" +#include "JBig2_ArithDecoder.h" +#include "JBig2_ArithIntDecoder.h" +#include "JBig2_HuffmanDecoder.h" +#include "JBig2_GrrdProc.h" + +CJBig2_Image* CJBig2_TRDProc::decode_Huffman(CJBig2_BitStream* pStream, + JBig2ArithCtx* grContext) { + int32_t STRIPT, FIRSTS; + FX_DWORD NINSTANCES; + int32_t DT, DFS, CURS; + uint8_t CURT; + int32_t SI, TI; + FX_DWORD IDI; + CJBig2_Image* IBI; + FX_DWORD WI, HI; + int32_t IDS; + FX_BOOL RI; + int32_t RDWI, RDHI, RDXI, RDYI; + CJBig2_Image* IBOI; + FX_DWORD WOI, HOI; + FX_BOOL bFirst; + FX_DWORD nTmp; + int32_t nVal, nBits; + nonstd::unique_ptr<CJBig2_HuffmanDecoder> pHuffmanDecoder( + new CJBig2_HuffmanDecoder(pStream)); + nonstd::unique_ptr<CJBig2_Image> SBREG(new CJBig2_Image(SBW, SBH)); + SBREG->fill(SBDEFPIXEL); + if (pHuffmanDecoder->decodeAValue(SBHUFFDT, &STRIPT) != 0) + return nullptr; + + STRIPT *= SBSTRIPS; + STRIPT = -STRIPT; + FIRSTS = 0; + NINSTANCES = 0; + while (NINSTANCES < SBNUMINSTANCES) { + if (pHuffmanDecoder->decodeAValue(SBHUFFDT, &DT) != 0) + return nullptr; + + DT *= SBSTRIPS; + STRIPT = STRIPT + DT; + bFirst = TRUE; + for (;;) { + if (bFirst) { + if (pHuffmanDecoder->decodeAValue(SBHUFFFS, &DFS) != 0) + return nullptr; + + FIRSTS = FIRSTS + DFS; + CURS = FIRSTS; + bFirst = FALSE; + } else { + nVal = pHuffmanDecoder->decodeAValue(SBHUFFDS, &IDS); + if (nVal == JBIG2_OOB) { + break; + } else if (nVal != 0) { + return nullptr; + } 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) + return nullptr; + + CURT = nVal; + } + TI = STRIPT + CURT; + nVal = 0; + nBits = 0; + for (;;) { + if (pStream->read1Bit(&nTmp) != 0) + return nullptr; + + 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) { + return nullptr; + } + } + 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)) { + return nullptr; + } + pStream->alignByte(); + nTmp = pStream->getOffset(); + IBOI = SBSYMS[IDI]; + if (!IBOI) + return nullptr; + + WOI = IBOI->m_nWidth; + HOI = IBOI->m_nHeight; + if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) + return nullptr; + + nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new 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]; + + { + nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder( + new CJBig2_ArithDecoder(pStream)); + IBI = pGRRD->decode(pArithDecoder.get(), grContext); + if (!IBI) + return nullptr; + } + + pStream->alignByte(); + pStream->offset(2); + if ((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) { + delete IBI; + return nullptr; + } + } + 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; + } + } + return SBREG.release(); +} + +CJBig2_Image* CJBig2_TRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext, + JBig2IntDecoderState* pIDS) { + int32_t STRIPT, FIRSTS; + FX_DWORD NINSTANCES; + int32_t DT, DFS, CURS; + int32_t CURT; + int32_t SI, TI; + FX_DWORD IDI; + CJBig2_Image* IBI; + FX_DWORD WI, HI; + int32_t IDS; + int RI; + int32_t RDWI, RDHI, RDXI, RDYI; + CJBig2_Image* IBOI; + FX_DWORD WOI, HOI; + FX_BOOL bFirst; + int32_t nRet, nVal; + int32_t bRetained; + CJBig2_ArithIntDecoder* IADT, *IAFS, *IADS, *IAIT, *IARI, *IARDW, *IARDH, + *IARDX, *IARDY; + CJBig2_ArithIaidDecoder* IAID; + 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 { + IADT = new CJBig2_ArithIntDecoder(); + IAFS = new CJBig2_ArithIntDecoder(); + IADS = new CJBig2_ArithIntDecoder(); + IAIT = new CJBig2_ArithIntDecoder(); + IARI = new CJBig2_ArithIntDecoder(); + IARDW = new CJBig2_ArithIntDecoder(); + IARDH = new CJBig2_ArithIntDecoder(); + IARDX = new CJBig2_ArithIntDecoder(); + IARDY = new CJBig2_ArithIntDecoder(); + IAID = new CJBig2_ArithIaidDecoder(SBSYMCODELEN); + bRetained = FALSE; + } + nonstd::unique_ptr<CJBig2_Image> SBREG(new CJBig2_Image(SBW, SBH)); + SBREG->fill(SBDEFPIXEL); + if (IADT->decode(pArithDecoder, &STRIPT) == -1) { + goto failed; + } + STRIPT *= SBSTRIPS; + STRIPT = -STRIPT; + FIRSTS = 0; + NINSTANCES = 0; + while (NINSTANCES < SBNUMINSTANCES) { + if (IADT->decode(pArithDecoder, &DT) == -1) { + goto failed; + } + DT *= SBSTRIPS; + STRIPT = STRIPT + DT; + bFirst = TRUE; + for (;;) { + if (bFirst) { + if (IAFS->decode(pArithDecoder, &DFS) == -1) { + goto failed; + } + FIRSTS = FIRSTS + DFS; + CURS = FIRSTS; + bFirst = FALSE; + } else { + nRet = IADS->decode(pArithDecoder, &IDS); + if (nRet == JBIG2_OOB) { + break; + } else if (nRet != 0) { + goto failed; + } else { + CURS = CURS + IDS + SBDSOFFSET; + } + } + if (NINSTANCES >= SBNUMINSTANCES) { + break; + } + if (SBSTRIPS == 1) { + CURT = 0; + } else { + if (IAIT->decode(pArithDecoder, &nVal) == -1) { + goto failed; + } + CURT = nVal; + } + TI = STRIPT + CURT; + if (IAID->decode(pArithDecoder, &nVal) == -1) { + goto failed; + } + IDI = nVal; + if (IDI >= SBNUMSYMS) { + goto failed; + } + if (SBREFINE == 0) { + RI = 0; + } else { + if (IARI->decode(pArithDecoder, &RI) == -1) { + 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)) { + goto failed; + } + IBOI = SBSYMS[IDI]; + WOI = IBOI->m_nWidth; + HOI = IBOI->m_nHeight; + if ((int)(WOI + RDWI) < 0 || (int)(HOI + RDHI) < 0) { + goto failed; + } + nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new 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) + goto failed; + } + 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.release(); +failed: + if (bRetained == FALSE) { + delete IADT; + delete IAFS; + delete IADS; + delete IAIT; + delete IARI; + delete IARDW; + delete IARDH; + delete IARDX; + delete IARDY; + delete IAID; + } + return nullptr; +} diff --git a/core/src/fxcodec/jbig2/JBig2_TrdProc.h b/core/src/fxcodec/jbig2/JBig2_TrdProc.h new file mode 100644 index 0000000000..1ab7d6a11a --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_TrdProc.h @@ -0,0 +1,83 @@ +// Copyright 2015 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 + +#ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_TRDPROC_H_ +#define CORE_SRC_FXCODEC_JBIG2_JBIG2_TRDPROC_H_ + +#include "../../../core/include/fxcrt/fx_system.h" + +#include "JBig2_Image.h" + +class CJBig2_ArithDecoder; +class CJBig2_ArithIaidDecoder; +class CJBig2_ArithIntDecoder; +class CJBig2_BitStream; +class CJBig2_HuffmanTable; +struct JBig2ArithCtx; +struct JBig2HuffmanCode; + +struct JBig2IntDecoderState { + CJBig2_ArithIntDecoder* IADT; + CJBig2_ArithIntDecoder* IAFS; + CJBig2_ArithIntDecoder* IADS; + CJBig2_ArithIntDecoder* IAIT; + CJBig2_ArithIntDecoder* IARI; + CJBig2_ArithIntDecoder* IARDW; + CJBig2_ArithIntDecoder* IARDH; + CJBig2_ArithIntDecoder* IARDX; + CJBig2_ArithIntDecoder* IARDY; + CJBig2_ArithIaidDecoder* IAID; +}; + +enum JBig2Corner { + JBIG2_CORNER_BOTTOMLEFT = 0, + JBIG2_CORNER_TOPLEFT = 1, + JBIG2_CORNER_BOTTOMRIGHT = 2, + JBIG2_CORNER_TOPRIGHT = 3 +}; + +class CJBig2_TRDProc { + public: + CJBig2_Image* decode_Huffman(CJBig2_BitStream* pStream, + JBig2ArithCtx* grContext); + + CJBig2_Image* decode_Arith(CJBig2_ArithDecoder* pArithDecoder, + JBig2ArithCtx* grContext, + JBig2IntDecoderState* pIDS = NULL); + + public: + FX_BOOL SBHUFF; + FX_BOOL SBREFINE; + FX_DWORD SBW; + FX_DWORD SBH; + FX_DWORD SBNUMINSTANCES; + FX_DWORD SBSTRIPS; + FX_DWORD SBNUMSYMS; + + JBig2HuffmanCode* SBSYMCODES; + uint8_t SBSYMCODELEN; + + CJBig2_Image** SBSYMS; + FX_BOOL SBDEFPIXEL; + + JBig2ComposeOp SBCOMBOP; + FX_BOOL TRANSPOSED; + + JBig2Corner REFCORNER; + int8_t SBDSOFFSET; + CJBig2_HuffmanTable* SBHUFFFS; + CJBig2_HuffmanTable* SBHUFFDS; + CJBig2_HuffmanTable* SBHUFFDT; + CJBig2_HuffmanTable* SBHUFFRDW; + CJBig2_HuffmanTable* SBHUFFRDH; + CJBig2_HuffmanTable* SBHUFFRDX; + CJBig2_HuffmanTable* SBHUFFRDY; + CJBig2_HuffmanTable* SBHUFFRSIZE; + FX_BOOL SBRTEMPLATE; + int8_t SBRAT[4]; +}; + +#endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_TRDPROC_H_ |