Split up JBig2_GeneralDecoder.cpp.
R=tsepez@chromium.org
Review URL: https://codereview.chromium.org/1359233002 .
diff --git a/BUILD.gn b/BUILD.gn
index ec28f17..c603c71 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -351,16 +351,22 @@
"core/src/fxcodec/codec/fx_codec_jbig_enc.cpp",
"core/src/fxcodec/codec/fx_codec_jpeg.cpp",
"core/src/fxcodec/codec/fx_codec_jpx_opj.cpp",
+ "core/src/fxcodec/jbig2/JBig2_ArithDecoder.cpp",
"core/src/fxcodec/jbig2/JBig2_ArithDecoder.h",
"core/src/fxcodec/jbig2/JBig2_ArithIntDecoder.cpp",
"core/src/fxcodec/jbig2/JBig2_ArithIntDecoder.h",
- "core/src/fxcodec/jbig2/JBig2_ArithQe.h",
"core/src/fxcodec/jbig2/JBig2_BitStream.h",
"core/src/fxcodec/jbig2/JBig2_Context.cpp",
"core/src/fxcodec/jbig2/JBig2_Context.h",
"core/src/fxcodec/jbig2/JBig2_Define.h",
- "core/src/fxcodec/jbig2/JBig2_GeneralDecoder.cpp",
- "core/src/fxcodec/jbig2/JBig2_GeneralDecoder.h",
+ "core/src/fxcodec/jbig2/JBig2_GrdProc.cpp",
+ "core/src/fxcodec/jbig2/JBig2_GrdProc.h",
+ "core/src/fxcodec/jbig2/JBig2_GrrdProc.cpp",
+ "core/src/fxcodec/jbig2/JBig2_GrrdProc.h",
+ "core/src/fxcodec/jbig2/JBig2_GsidProc.cpp",
+ "core/src/fxcodec/jbig2/JBig2_GsidProc.h",
+ "core/src/fxcodec/jbig2/JBig2_HtrdProc.cpp",
+ "core/src/fxcodec/jbig2/JBig2_HtrdProc.h",
"core/src/fxcodec/jbig2/JBig2_HuffmanDecoder.cpp",
"core/src/fxcodec/jbig2/JBig2_HuffmanDecoder.h",
"core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp",
@@ -372,10 +378,16 @@
"core/src/fxcodec/jbig2/JBig2_Page.h",
"core/src/fxcodec/jbig2/JBig2_PatternDict.cpp",
"core/src/fxcodec/jbig2/JBig2_PatternDict.h",
+ "core/src/fxcodec/jbig2/JBig2_PddProc.cpp",
+ "core/src/fxcodec/jbig2/JBig2_PddProc.h",
+ "core/src/fxcodec/jbig2/JBig2_SddProc.cpp",
+ "core/src/fxcodec/jbig2/JBig2_SddProc.h",
"core/src/fxcodec/jbig2/JBig2_Segment.cpp",
"core/src/fxcodec/jbig2/JBig2_Segment.h",
"core/src/fxcodec/jbig2/JBig2_SymbolDict.cpp",
"core/src/fxcodec/jbig2/JBig2_SymbolDict.h",
+ "core/src/fxcodec/jbig2/JBig2_TrdProc.cpp",
+ "core/src/fxcodec/jbig2/JBig2_TrdProc.h",
]
configs -= [ "//build/config/compiler:chromium_code" ]
diff --git a/core/src/fxcodec/jbig2/JBig2_ArithDecoder.cpp b/core/src/fxcodec/jbig2/JBig2_ArithDecoder.cpp
new file mode 100644
index 0000000..34c79f9
--- /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 7acfe9c..02c81b3 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 @@
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 c8baa15..b194faf 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 d4eabec..0000000
--- 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 b700541..c004c87 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 @@
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 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 1af6b94..48bc794 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 @@
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 d93d3e0..0000000
--- 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 a1394d3..0000000
--- 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 0000000..5eb0570
--- /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 0000000..6729e22
--- /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 0000000..916683c
--- /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 0000000..e6ebffa
--- /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 0000000..b97a212
--- /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 0000000..230c736
--- /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 0000000..a5a8b7a
--- /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 0000000..bea9494
--- /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 0000000..56443a0
--- /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 0000000..5926155
--- /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 0000000..ae5635b
--- /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 0000000..7bc910f
--- /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 0000000..afa3dba
--- /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 0000000..1ab7d6a
--- /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_
diff --git a/pdfium.gyp b/pdfium.gyp
index d62cd56..8920968 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -342,16 +342,22 @@
'core/src/fxcodec/codec/fx_codec_jbig_enc.cpp',
'core/src/fxcodec/codec/fx_codec_jpeg.cpp',
'core/src/fxcodec/codec/fx_codec_jpx_opj.cpp',
+ 'core/src/fxcodec/jbig2/JBig2_ArithDecoder.cpp',
'core/src/fxcodec/jbig2/JBig2_ArithDecoder.h',
'core/src/fxcodec/jbig2/JBig2_ArithIntDecoder.cpp',
'core/src/fxcodec/jbig2/JBig2_ArithIntDecoder.h',
- 'core/src/fxcodec/jbig2/JBig2_ArithQe.h',
'core/src/fxcodec/jbig2/JBig2_BitStream.h',
'core/src/fxcodec/jbig2/JBig2_Context.cpp',
'core/src/fxcodec/jbig2/JBig2_Context.h',
'core/src/fxcodec/jbig2/JBig2_Define.h',
- 'core/src/fxcodec/jbig2/JBig2_GeneralDecoder.cpp',
- 'core/src/fxcodec/jbig2/JBig2_GeneralDecoder.h',
+ 'core/src/fxcodec/jbig2/JBig2_GrdProc.cpp',
+ 'core/src/fxcodec/jbig2/JBig2_GrdProc.h',
+ 'core/src/fxcodec/jbig2/JBig2_GrrdProc.cpp',
+ 'core/src/fxcodec/jbig2/JBig2_GrrdProc.h',
+ 'core/src/fxcodec/jbig2/JBig2_GsidProc.cpp',
+ 'core/src/fxcodec/jbig2/JBig2_GsidProc.h',
+ 'core/src/fxcodec/jbig2/JBig2_HtrdProc.cpp',
+ 'core/src/fxcodec/jbig2/JBig2_HtrdProc.h',
'core/src/fxcodec/jbig2/JBig2_HuffmanDecoder.cpp',
'core/src/fxcodec/jbig2/JBig2_HuffmanDecoder.h',
'core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp',
@@ -363,10 +369,16 @@
'core/src/fxcodec/jbig2/JBig2_Page.h',
'core/src/fxcodec/jbig2/JBig2_PatternDict.cpp',
'core/src/fxcodec/jbig2/JBig2_PatternDict.h',
+ 'core/src/fxcodec/jbig2/JBig2_PddProc.cpp',
+ 'core/src/fxcodec/jbig2/JBig2_PddProc.h',
+ 'core/src/fxcodec/jbig2/JBig2_SddProc.cpp',
+ 'core/src/fxcodec/jbig2/JBig2_SddProc.h',
'core/src/fxcodec/jbig2/JBig2_Segment.cpp',
'core/src/fxcodec/jbig2/JBig2_Segment.h',
'core/src/fxcodec/jbig2/JBig2_SymbolDict.cpp',
'core/src/fxcodec/jbig2/JBig2_SymbolDict.h',
+ 'core/src/fxcodec/jbig2/JBig2_TrdProc.cpp',
+ 'core/src/fxcodec/jbig2/JBig2_TrdProc.h',
],
'msvs_settings': {
'VCCLCompilerTool': {
