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-rw-r--r--core/src/fxcodec/jbig2/JBig2_Context.cpp1182
-rw-r--r--core/src/fxcodec/jbig2/JBig2_Context.h2
-rw-r--r--core/src/fxcodec/jbig2/JBig2_GsidProc.cpp114
-rw-r--r--core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp87
4 files changed, 603 insertions, 782 deletions
diff --git a/core/src/fxcodec/jbig2/JBig2_Context.cpp b/core/src/fxcodec/jbig2/JBig2_Context.cpp
index ca895e5b9c..3e0ebb36e3 100644
--- a/core/src/fxcodec/jbig2/JBig2_Context.cpp
+++ b/core/src/fxcodec/jbig2/JBig2_Context.cpp
@@ -15,6 +15,18 @@
#include "JBig2_SddProc.h"
#include "JBig2_TrdProc.h"
+namespace {
+
+size_t GetHuffContextSize(uint8_t val) {
+ return val == 0 ? 65536 : val == 1 ? 8192 : 1024;
+}
+
+size_t GetRefAggContextSize(FX_BOOL val) {
+ return val ? 1024 : 8192;
+}
+
+} // namespace
+
// 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
@@ -57,7 +69,6 @@ CJBig2_Context::CJBig2_Context(const uint8_t* pGlobalData,
m_PauseStep(10),
m_pPause(pPause),
m_ProcessingStatus(FXCODEC_STATUS_FRAME_READY),
- m_pArithDecoder(NULL),
m_gbContext(NULL),
m_dwOffset(0),
m_pSymbolDictCache(pSymbolDictCache) {
@@ -72,8 +83,6 @@ CJBig2_Context::CJBig2_Context(const uint8_t* pGlobalData,
}
CJBig2_Context::~CJBig2_Context() {
- delete m_pArithDecoder;
- m_pArithDecoder = NULL;
FX_Free(m_gbContext);
m_gbContext = NULL;
delete m_pGlobalContext;
@@ -101,7 +110,7 @@ int32_t CJBig2_Context::decode_SquentialOrgnazation(IFX_Pause* pPause) {
m_PauseStep = 2;
return JBIG2_SUCCESS;
}
- if ((nRet == JBIG2_END_OF_PAGE) || (nRet == JBIG2_END_OF_FILE)) {
+ if (nRet == JBIG2_END_OF_PAGE || nRet == JBIG2_END_OF_FILE) {
m_pSegment.reset();
return JBIG2_SUCCESS;
}
@@ -152,7 +161,7 @@ int32_t CJBig2_Context::decode_RandomOrgnazation(IFX_Pause* pPause) {
for (; m_nSegmentDecoded < m_SegmentList.size(); ++m_nSegmentDecoded) {
int32_t nRet =
parseSegmentData(m_SegmentList.get(m_nSegmentDecoded), pPause);
- if ((nRet == JBIG2_END_OF_PAGE) || (nRet == JBIG2_END_OF_FILE))
+ if (nRet == JBIG2_END_OF_PAGE || nRet == JBIG2_END_OF_FILE)
return JBIG2_SUCCESS;
if (nRet != JBIG2_SUCCESS)
@@ -221,15 +230,14 @@ int32_t CJBig2_Context::Continue(IFX_Pause* pPause) {
}
CJBig2_Segment* CJBig2_Context::findSegmentByNumber(FX_DWORD dwNumber) {
- CJBig2_Segment* pSeg;
if (m_pGlobalContext) {
- pSeg = m_pGlobalContext->findSegmentByNumber(dwNumber);
+ CJBig2_Segment* pSeg = m_pGlobalContext->findSegmentByNumber(dwNumber);
if (pSeg) {
return pSeg;
}
}
for (size_t i = 0; i < m_SegmentList.size(); ++i) {
- pSeg = m_SegmentList.get(i);
+ CJBig2_Segment* pSeg = m_SegmentList.get(i);
if (pSeg->m_dwNumber == dwNumber) {
return pSeg;
}
@@ -240,24 +248,21 @@ CJBig2_Segment* CJBig2_Context::findReferredSegmentByTypeAndIndex(
CJBig2_Segment* pSegment,
uint8_t cType,
int32_t nIndex) {
- CJBig2_Segment* pSeg;
- int32_t i, count;
- count = 0;
- for (i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
- pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
+ int32_t count = 0;
+ for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
+ CJBig2_Segment* pSeg =
+ findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
if (pSeg && pSeg->m_cFlags.s.type == cType) {
- if (count == nIndex) {
+ if (count == nIndex)
return pSeg;
- } else {
- count++;
- }
+ ++count;
}
}
return NULL;
}
int32_t CJBig2_Context::parseSegmentHeader(CJBig2_Segment* pSegment) {
- if ((m_pStream->readInteger(&pSegment->m_dwNumber) != 0) ||
- (m_pStream->read1Byte(&pSegment->m_cFlags.c) != 0)) {
+ if (m_pStream->readInteger(&pSegment->m_dwNumber) != 0 ||
+ m_pStream->read1Byte(&pSegment->m_cFlags.c) != 0) {
return JBIG2_ERROR_TOO_SHORT;
}
@@ -287,7 +292,7 @@ int32_t CJBig2_Context::parseSegmentHeader(CJBig2_Segment* pSegment) {
if (pSegment->m_nReferred_to_segment_count) {
pSegment->m_pReferred_to_segment_numbers =
FX_Alloc(FX_DWORD, pSegment->m_nReferred_to_segment_count);
- for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
+ for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
switch (cSSize) {
case 1:
if (m_pStream->read1Byte(&cTemp) != 0)
@@ -374,12 +379,12 @@ int32_t CJBig2_Context::ProcessingParseSegmentData(CJBig2_Segment* pSegment,
case 48: {
FX_WORD wTemp;
nonstd::unique_ptr<JBig2PageInfo> pPageInfo(new JBig2PageInfo);
- if ((m_pStream->readInteger(&pPageInfo->m_dwWidth) != 0) ||
- (m_pStream->readInteger(&pPageInfo->m_dwHeight) != 0) ||
- (m_pStream->readInteger(&pPageInfo->m_dwResolutionX) != 0) ||
- (m_pStream->readInteger(&pPageInfo->m_dwResolutionY) != 0) ||
- (m_pStream->read1Byte(&pPageInfo->m_cFlags) != 0) ||
- (m_pStream->readShortInteger(&wTemp) != 0)) {
+ if (m_pStream->readInteger(&pPageInfo->m_dwWidth) != 0 ||
+ m_pStream->readInteger(&pPageInfo->m_dwHeight) != 0 ||
+ m_pStream->readInteger(&pPageInfo->m_dwResolutionX) != 0 ||
+ m_pStream->readInteger(&pPageInfo->m_dwResolutionY) != 0 ||
+ m_pStream->read1Byte(&pPageInfo->m_cFlags) != 0 ||
+ m_pStream->readShortInteger(&wTemp) != 0) {
return JBIG2_ERROR_TOO_SHORT;
}
pPageInfo->m_bIsStriped = ((wTemp >> 15) & 1) ? TRUE : FALSE;
@@ -428,200 +433,175 @@ int32_t CJBig2_Context::ProcessingParseSegmentData(CJBig2_Segment* pSegment,
int32_t CJBig2_Context::parseSymbolDict(CJBig2_Segment* pSegment,
IFX_Pause* pPause) {
- FX_DWORD dwTemp;
FX_WORD wFlags;
- uint8_t cSDHUFFDH, cSDHUFFDW, cSDHUFFBMSIZE, cSDHUFFAGGINST;
- 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 = nullptr;
- CJBig2_Segment* pLRSeg = nullptr;
- FX_BOOL bUsed;
- 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;
- FX_BOOL cache_hit = false;
- if (m_pStream->readShortInteger(&wFlags) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
+ if (m_pStream->readShortInteger(&wFlags) != 0)
+ return JBIG2_ERROR_TOO_SHORT;
+
+ nonstd::unique_ptr<CJBig2_SDDProc> pSymbolDictDecoder(new CJBig2_SDDProc);
pSymbolDictDecoder->SDHUFF = wFlags & 0x0001;
pSymbolDictDecoder->SDREFAGG = (wFlags >> 1) & 0x0001;
pSymbolDictDecoder->SDTEMPLATE = (wFlags >> 10) & 0x0003;
pSymbolDictDecoder->SDRTEMPLATE = (wFlags >> 12) & 0x0003;
- cSDHUFFDH = (wFlags >> 2) & 0x0003;
- cSDHUFFDW = (wFlags >> 4) & 0x0003;
- cSDHUFFBMSIZE = (wFlags >> 6) & 0x0001;
- cSDHUFFAGGINST = (wFlags >> 7) & 0x0001;
+ uint8_t cSDHUFFDH = (wFlags >> 2) & 0x0003;
+ uint8_t cSDHUFFDW = (wFlags >> 4) & 0x0003;
+ uint8_t cSDHUFFBMSIZE = (wFlags >> 6) & 0x0001;
+ uint8_t cSDHUFFAGGINST = (wFlags >> 7) & 0x0001;
if (pSymbolDictDecoder->SDHUFF == 0) {
- if (pSymbolDictDecoder->SDTEMPLATE == 0) {
- dwTemp = 8;
- } else {
- dwTemp = 2;
- }
- for (i = 0; i < (int32_t)dwTemp; i++) {
- if (m_pStream->read1Byte((uint8_t*)&pSymbolDictDecoder->SDAT[i]) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
+ const FX_DWORD dwTemp = (pSymbolDictDecoder->SDTEMPLATE == 0) ? 8 : 2;
+ for (FX_DWORD i = 0; i < dwTemp; ++i) {
+ if (m_pStream->read1Byte((uint8_t*)&pSymbolDictDecoder->SDAT[i]) != 0)
+ return JBIG2_ERROR_TOO_SHORT;
}
}
- if ((pSymbolDictDecoder->SDREFAGG == 1) &&
- (pSymbolDictDecoder->SDRTEMPLATE == 0)) {
- for (i = 0; i < 4; i++) {
- if (m_pStream->read1Byte((uint8_t*)&pSymbolDictDecoder->SDRAT[i]) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
+ if (pSymbolDictDecoder->SDREFAGG == 1 &&
+ pSymbolDictDecoder->SDRTEMPLATE == 0) {
+ for (int32_t i = 0; i < 4; ++i) {
+ if (m_pStream->read1Byte((uint8_t*)&pSymbolDictDecoder->SDRAT[i]) != 0)
+ return JBIG2_ERROR_TOO_SHORT;
}
}
- if ((m_pStream->readInteger(&pSymbolDictDecoder->SDNUMEXSYMS) != 0) ||
- (m_pStream->readInteger(&pSymbolDictDecoder->SDNUMNEWSYMS) != 0)) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
+ if (m_pStream->readInteger(&pSymbolDictDecoder->SDNUMEXSYMS) != 0 ||
+ m_pStream->readInteger(&pSymbolDictDecoder->SDNUMNEWSYMS) != 0) {
+ return JBIG2_ERROR_TOO_SHORT;
}
if (pSymbolDictDecoder->SDNUMEXSYMS > JBIG2_MAX_EXPORT_SYSMBOLS ||
pSymbolDictDecoder->SDNUMNEWSYMS > JBIG2_MAX_NEW_SYSMBOLS) {
- nRet = JBIG2_ERROR_LIMIT;
- goto failed;
+ return JBIG2_ERROR_LIMIT;
}
- for (i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
- if (!findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i])) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
+ if (!findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]))
+ return JBIG2_ERROR_FATAL;
}
+ CJBig2_Segment* pLRSeg = nullptr;
pSymbolDictDecoder->SDNUMINSYMS = 0;
- for (i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
- pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
+ for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
+ CJBig2_Segment* pSeg =
+ findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
if (pSeg->m_cFlags.s.type == 0) {
pSymbolDictDecoder->SDNUMINSYMS += pSeg->m_Result.sd->SDNUMEXSYMS;
pLRSeg = pSeg;
}
}
- if (pSymbolDictDecoder->SDNUMINSYMS == 0) {
- SDINSYMS = NULL;
- } else {
- SDINSYMS = FX_Alloc(CJBig2_Image*, pSymbolDictDecoder->SDNUMINSYMS);
- dwTemp = 0;
- for (i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
- pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
+
+ nonstd::unique_ptr<CJBig2_Image*, FxFreeDeleter> SDINSYMS;
+ if (pSymbolDictDecoder->SDNUMINSYMS != 0) {
+ SDINSYMS.reset(FX_Alloc(CJBig2_Image*, pSymbolDictDecoder->SDNUMINSYMS));
+ FX_DWORD dwTemp = 0;
+ for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
+ CJBig2_Segment* pSeg =
+ findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
if (pSeg->m_cFlags.s.type == 0) {
- JBIG2_memcpy(SDINSYMS + dwTemp, pSeg->m_Result.sd->SDEXSYMS,
+ JBIG2_memcpy(SDINSYMS.get() + dwTemp, pSeg->m_Result.sd->SDEXSYMS,
pSeg->m_Result.sd->SDNUMEXSYMS * sizeof(CJBig2_Image*));
dwTemp += pSeg->m_Result.sd->SDNUMEXSYMS;
}
}
}
- pSymbolDictDecoder->SDINSYMS = SDINSYMS;
+ pSymbolDictDecoder->SDINSYMS = SDINSYMS.get();
+
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B1;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B2;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B3;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B4;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B5;
if (pSymbolDictDecoder->SDHUFF == 1) {
- if ((cSDHUFFDH == 2) || (cSDHUFFDW == 2)) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
- nIndex = 0;
+ if (cSDHUFFDH == 2 || cSDHUFFDW == 2)
+ return JBIG2_ERROR_FATAL;
+
+ int32_t nIndex = 0;
if (cSDHUFFDH == 0) {
- Table_B4 = new CJBig2_HuffmanTable(HuffmanTable_B4,
- FX_ArraySize(HuffmanTable_B4),
- HuffmanTable_HTOOB_B4);
- pSymbolDictDecoder->SDHUFFDH = Table_B4;
+ Table_B4.reset(new CJBig2_HuffmanTable(HuffmanTable_B4,
+ FX_ArraySize(HuffmanTable_B4),
+ HuffmanTable_HTOOB_B4));
+ pSymbolDictDecoder->SDHUFFDH = Table_B4.get();
} else if (cSDHUFFDH == 1) {
- Table_B5 = new CJBig2_HuffmanTable(HuffmanTable_B5,
- FX_ArraySize(HuffmanTable_B5),
- HuffmanTable_HTOOB_B5);
- pSymbolDictDecoder->SDHUFFDH = Table_B5;
+ Table_B5.reset(new CJBig2_HuffmanTable(HuffmanTable_B5,
+ FX_ArraySize(HuffmanTable_B5),
+ HuffmanTable_HTOOB_B5));
+ pSymbolDictDecoder->SDHUFFDH = Table_B5.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pSymbolDictDecoder->SDHUFFDH = pSeg->m_Result.ht;
}
if (cSDHUFFDW == 0) {
- Table_B2 = new CJBig2_HuffmanTable(HuffmanTable_B2,
- FX_ArraySize(HuffmanTable_B2),
- HuffmanTable_HTOOB_B2);
- pSymbolDictDecoder->SDHUFFDW = Table_B2;
+ Table_B2.reset(new CJBig2_HuffmanTable(HuffmanTable_B2,
+ FX_ArraySize(HuffmanTable_B2),
+ HuffmanTable_HTOOB_B2));
+ pSymbolDictDecoder->SDHUFFDW = Table_B2.get();
} else if (cSDHUFFDW == 1) {
- Table_B3 = new CJBig2_HuffmanTable(HuffmanTable_B3,
- FX_ArraySize(HuffmanTable_B3),
- HuffmanTable_HTOOB_B3);
- pSymbolDictDecoder->SDHUFFDW = Table_B3;
+ Table_B3.reset(new CJBig2_HuffmanTable(HuffmanTable_B3,
+ FX_ArraySize(HuffmanTable_B3),
+ HuffmanTable_HTOOB_B3));
+ pSymbolDictDecoder->SDHUFFDW = Table_B3.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pSymbolDictDecoder->SDHUFFDW = pSeg->m_Result.ht;
}
if (cSDHUFFBMSIZE == 0) {
- Table_B1 = new CJBig2_HuffmanTable(HuffmanTable_B1,
- FX_ArraySize(HuffmanTable_B1),
- HuffmanTable_HTOOB_B1);
- pSymbolDictDecoder->SDHUFFBMSIZE = Table_B1;
+ Table_B1.reset(new CJBig2_HuffmanTable(HuffmanTable_B1,
+ FX_ArraySize(HuffmanTable_B1),
+ HuffmanTable_HTOOB_B1));
+ pSymbolDictDecoder->SDHUFFBMSIZE = Table_B1.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pSymbolDictDecoder->SDHUFFBMSIZE = pSeg->m_Result.ht;
}
if (pSymbolDictDecoder->SDREFAGG == 1) {
if (cSDHUFFAGGINST == 0) {
if (!Table_B1) {
- Table_B1 = new CJBig2_HuffmanTable(HuffmanTable_B1,
- FX_ArraySize(HuffmanTable_B1),
- HuffmanTable_HTOOB_B1);
+ Table_B1.reset(new CJBig2_HuffmanTable(HuffmanTable_B1,
+ FX_ArraySize(HuffmanTable_B1),
+ HuffmanTable_HTOOB_B1));
}
- pSymbolDictDecoder->SDHUFFAGGINST = Table_B1;
+ pSymbolDictDecoder->SDHUFFAGGINST = Table_B1.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pSymbolDictDecoder->SDHUFFAGGINST = pSeg->m_Result.ht;
}
}
}
+
+ nonstd::unique_ptr<JBig2ArithCtx, FxFreeDeleter> gbContext;
+ nonstd::unique_ptr<JBig2ArithCtx, FxFreeDeleter> grContext;
if ((wFlags & 0x0100) && pLRSeg && pLRSeg->m_Result.sd->m_bContextRetained) {
if (pSymbolDictDecoder->SDHUFF == 0) {
- dwTemp = pSymbolDictDecoder->SDTEMPLATE == 0
- ? 65536
- : pSymbolDictDecoder->SDTEMPLATE == 1 ? 8192 : 1024;
- gbContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memcpy(gbContext, pLRSeg->m_Result.sd->m_gbContext,
- sizeof(JBig2ArithCtx) * dwTemp);
+ const size_t size = GetHuffContextSize(pSymbolDictDecoder->SDTEMPLATE);
+ gbContext.reset(FX_Alloc(JBig2ArithCtx, size));
+ JBIG2_memcpy(gbContext.get(), pLRSeg->m_Result.sd->m_gbContext,
+ sizeof(JBig2ArithCtx) * size);
}
if (pSymbolDictDecoder->SDREFAGG == 1) {
- dwTemp = pSymbolDictDecoder->SDRTEMPLATE ? 1 << 10 : 1 << 13;
- grContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memcpy(grContext, pLRSeg->m_Result.sd->m_grContext,
- sizeof(JBig2ArithCtx) * dwTemp);
+ const size_t size = GetRefAggContextSize(pSymbolDictDecoder->SDRTEMPLATE);
+ grContext.reset(FX_Alloc(JBig2ArithCtx, size));
+ JBIG2_memcpy(grContext.get(), pLRSeg->m_Result.sd->m_grContext,
+ sizeof(JBig2ArithCtx) * size);
}
} else {
if (pSymbolDictDecoder->SDHUFF == 0) {
- dwTemp = pSymbolDictDecoder->SDTEMPLATE == 0
- ? 65536
- : pSymbolDictDecoder->SDTEMPLATE == 1 ? 8192 : 1024;
- gbContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memset(gbContext, 0, sizeof(JBig2ArithCtx) * dwTemp);
+ const size_t size = GetHuffContextSize(pSymbolDictDecoder->SDTEMPLATE);
+ gbContext.reset(FX_Alloc(JBig2ArithCtx, size));
+ JBIG2_memset(gbContext.get(), 0, sizeof(JBig2ArithCtx) * size);
}
if (pSymbolDictDecoder->SDREFAGG == 1) {
- dwTemp = pSymbolDictDecoder->SDRTEMPLATE ? 1 << 10 : 1 << 13;
- grContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memset(grContext, 0, sizeof(JBig2ArithCtx) * dwTemp);
+ const size_t size = GetRefAggContextSize(pSymbolDictDecoder->SDRTEMPLATE);
+ grContext.reset(FX_Alloc(JBig2ArithCtx, size));
+ JBIG2_memset(grContext.get(), 0, sizeof(JBig2ArithCtx) * size);
}
}
+ const uint8_t* key = pSegment->m_pData;
+ FX_BOOL cache_hit = false;
pSegment->m_nResultType = JBIG2_SYMBOL_DICT_POINTER;
for (std::list<CJBig2_CachePair>::iterator it = m_pSymbolDictCache->begin();
it != m_pSymbolDictCache->end(); ++it) {
@@ -636,23 +616,20 @@ int32_t CJBig2_Context::parseSymbolDict(CJBig2_Segment* pSegment,
}
if (!cache_hit) {
if (pSymbolDictDecoder->SDHUFF == 0) {
- pArithDecoder = new CJBig2_ArithDecoder(m_pStream.get());
- pSegment->m_Result.sd =
- pSymbolDictDecoder->decode_Arith(pArithDecoder, gbContext, grContext);
- delete pArithDecoder;
- if (pSegment->m_Result.sd == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
+ new CJBig2_ArithDecoder(m_pStream.get()));
+ pSegment->m_Result.sd = pSymbolDictDecoder->decode_Arith(
+ pArithDecoder.get(), gbContext.get(), grContext.get());
+ if (!pSegment->m_Result.sd)
+ return JBIG2_ERROR_FATAL;
+
m_pStream->alignByte();
m_pStream->offset(2);
} else {
pSegment->m_Result.sd = pSymbolDictDecoder->decode_Huffman(
- m_pStream.get(), gbContext, grContext, pPause);
- if (pSegment->m_Result.sd == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ m_pStream.get(), gbContext.get(), grContext.get(), pPause);
+ if (!pSegment->m_Result.sd)
+ return JBIG2_ERROR_FATAL;
m_pStream->alignByte();
}
#ifndef DISABLE_SYMBOL_CACHE
@@ -670,74 +647,29 @@ int32_t CJBig2_Context::parseSymbolDict(CJBig2_Segment* pSegment,
if (wFlags & 0x0200) {
pSegment->m_Result.sd->m_bContextRetained = TRUE;
if (pSymbolDictDecoder->SDHUFF == 0) {
- pSegment->m_Result.sd->m_gbContext = gbContext;
+ pSegment->m_Result.sd->m_gbContext = gbContext.release();
}
if (pSymbolDictDecoder->SDREFAGG == 1) {
- pSegment->m_Result.sd->m_grContext = grContext;
+ pSegment->m_Result.sd->m_grContext = grContext.release();
}
- bUsed = TRUE;
- } else {
- bUsed = FALSE;
- }
- delete pSymbolDictDecoder;
- FX_Free(SDINSYMS);
- delete Table_B1;
- delete Table_B2;
- delete Table_B3;
- delete Table_B4;
- delete Table_B5;
- if (bUsed == FALSE) {
- FX_Free(gbContext);
- FX_Free(grContext);
}
return JBIG2_SUCCESS;
-failed:
- delete pSymbolDictDecoder;
- FX_Free(SDINSYMS);
- delete Table_B1;
- delete Table_B2;
- delete Table_B3;
- delete Table_B4;
- delete Table_B5;
- FX_Free(gbContext);
- FX_Free(grContext);
- return nRet;
}
int32_t CJBig2_Context::parseTextRegion(CJBig2_Segment* pSegment) {
- FX_DWORD dwTemp;
FX_WORD wFlags;
- int32_t i, nIndex, nRet;
JBig2RegionInfo ri;
- CJBig2_Segment* pSeg;
- CJBig2_Image** SBSYMS = nullptr;
- JBig2HuffmanCode* SBSYMCODES = nullptr;
- uint8_t cSBHUFFFS, cSBHUFFDS, cSBHUFFDT, cSBHUFFRDW, cSBHUFFRDH, cSBHUFFRDX,
- cSBHUFFRDY, cSBHUFFRSIZE;
- 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) ||
- (m_pStream->readShortInteger(&wFlags) != 0)) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
+ if (parseRegionInfo(&ri) != JBIG2_SUCCESS ||
+ m_pStream->readShortInteger(&wFlags) != 0) {
+ return JBIG2_ERROR_TOO_SHORT;
}
+
+ nonstd::unique_ptr<CJBig2_TRDProc> pTRD(new CJBig2_TRDProc);
pTRD->SBW = ri.width;
pTRD->SBH = ri.height;
pTRD->SBHUFF = wFlags & 0x0001;
pTRD->SBREFINE = (wFlags >> 1) & 0x0001;
- dwTemp = (wFlags >> 2) & 0x0003;
+ FX_DWORD dwTemp = (wFlags >> 2) & 0x0003;
pTRD->SBSTRIPS = 1 << dwTemp;
pTRD->REFCORNER = (JBig2Corner)((wFlags >> 4) & 0x0003);
pTRD->TRANSPOSED = (wFlags >> 6) & 0x0001;
@@ -748,11 +680,19 @@ int32_t CJBig2_Context::parseTextRegion(CJBig2_Segment* pSegment) {
pTRD->SBDSOFFSET = pTRD->SBDSOFFSET - 0x0020;
}
pTRD->SBRTEMPLATE = (wFlags >> 15) & 0x0001;
+
+ uint8_t cSBHUFFFS;
+ uint8_t cSBHUFFDS;
+ uint8_t cSBHUFFDT;
+ uint8_t cSBHUFFRDW;
+ uint8_t cSBHUFFRDH;
+ uint8_t cSBHUFFRDX;
+ uint8_t cSBHUFFRDY;
+ uint8_t cSBHUFFRSIZE;
if (pTRD->SBHUFF == 1) {
- if (m_pStream->readShortInteger(&wFlags) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
+ if (m_pStream->readShortInteger(&wFlags) != 0)
+ return JBIG2_ERROR_TOO_SHORT;
+
cSBHUFFFS = wFlags & 0x0003;
cSBHUFFDS = (wFlags >> 2) & 0x0003;
cSBHUFFDT = (wFlags >> 4) & 0x0003;
@@ -762,253 +702,257 @@ int32_t CJBig2_Context::parseTextRegion(CJBig2_Segment* pSegment) {
cSBHUFFRDY = (wFlags >> 12) & 0x0003;
cSBHUFFRSIZE = (wFlags >> 14) & 0x0001;
}
- if ((pTRD->SBREFINE == 1) && (pTRD->SBRTEMPLATE == 0)) {
- for (i = 0; i < 4; i++) {
- if (m_pStream->read1Byte((uint8_t*)&pTRD->SBRAT[i]) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
+ if (pTRD->SBREFINE == 1 && pTRD->SBRTEMPLATE == 0) {
+ for (int32_t i = 0; i < 4; ++i) {
+ if (m_pStream->read1Byte((uint8_t*)&pTRD->SBRAT[i]) != 0)
+ return JBIG2_ERROR_TOO_SHORT;
}
}
- if (m_pStream->readInteger(&pTRD->SBNUMINSTANCES) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
- for (i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
- if (!findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i])) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ if (m_pStream->readInteger(&pTRD->SBNUMINSTANCES) != 0)
+ return JBIG2_ERROR_TOO_SHORT;
+
+ for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
+ if (!findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]))
+ return JBIG2_ERROR_FATAL;
}
+
pTRD->SBNUMSYMS = 0;
- for (i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
- pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
+ for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
+ CJBig2_Segment* pSeg =
+ findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
if (pSeg->m_cFlags.s.type == 0) {
pTRD->SBNUMSYMS += pSeg->m_Result.sd->SDNUMEXSYMS;
}
}
+
+ nonstd::unique_ptr<CJBig2_Image*, FxFreeDeleter> SBSYMS;
if (pTRD->SBNUMSYMS > 0) {
- SBSYMS = FX_Alloc(CJBig2_Image*, pTRD->SBNUMSYMS);
+ SBSYMS.reset(FX_Alloc(CJBig2_Image*, pTRD->SBNUMSYMS));
dwTemp = 0;
- for (i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
- pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
+ for (int32_t i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
+ CJBig2_Segment* pSeg =
+ findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
if (pSeg->m_cFlags.s.type == 0) {
- JBIG2_memcpy(SBSYMS + dwTemp, pSeg->m_Result.sd->SDEXSYMS,
+ JBIG2_memcpy(SBSYMS.get() + dwTemp, pSeg->m_Result.sd->SDEXSYMS,
pSeg->m_Result.sd->SDNUMEXSYMS * sizeof(CJBig2_Image*));
dwTemp += pSeg->m_Result.sd->SDNUMEXSYMS;
}
}
- pTRD->SBSYMS = SBSYMS;
+ pTRD->SBSYMS = SBSYMS.get();
} else {
pTRD->SBSYMS = NULL;
}
+
+ nonstd::unique_ptr<JBig2HuffmanCode, FxFreeDeleter> SBSYMCODES;
if (pTRD->SBHUFF == 1) {
- SBSYMCODES = decodeSymbolIDHuffmanTable(m_pStream.get(), pTRD->SBNUMSYMS);
- if (SBSYMCODES == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ SBSYMCODES.reset(
+ decodeSymbolIDHuffmanTable(m_pStream.get(), pTRD->SBNUMSYMS));
+ if (!SBSYMCODES)
+ return JBIG2_ERROR_FATAL;
+
m_pStream->alignByte();
- pTRD->SBSYMCODES = SBSYMCODES;
+ pTRD->SBSYMCODES = SBSYMCODES.get();
} else {
dwTemp = 0;
while ((FX_DWORD)(1 << dwTemp) < pTRD->SBNUMSYMS) {
- dwTemp++;
+ ++dwTemp;
}
pTRD->SBSYMCODELEN = (uint8_t)dwTemp;
}
+
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B1;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B6;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B7;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B8;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B9;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B10;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B11;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B12;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B13;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B14;
+ nonstd::unique_ptr<CJBig2_HuffmanTable> Table_B15;
if (pTRD->SBHUFF == 1) {
- if ((cSBHUFFFS == 2) || (cSBHUFFRDW == 2) || (cSBHUFFRDH == 2) ||
- (cSBHUFFRDX == 2) || (cSBHUFFRDY == 2)) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
+ if (cSBHUFFFS == 2 || cSBHUFFRDW == 2 || cSBHUFFRDH == 2 ||
+ cSBHUFFRDX == 2 || cSBHUFFRDY == 2) {
+ return JBIG2_ERROR_FATAL;
}
- nIndex = 0;
+ int32_t nIndex = 0;
if (cSBHUFFFS == 0) {
- Table_B6 = new CJBig2_HuffmanTable(HuffmanTable_B6,
- FX_ArraySize(HuffmanTable_B6),
- HuffmanTable_HTOOB_B6);
- pTRD->SBHUFFFS = Table_B6;
+ Table_B6.reset(new CJBig2_HuffmanTable(HuffmanTable_B6,
+ FX_ArraySize(HuffmanTable_B6),
+ HuffmanTable_HTOOB_B6));
+ pTRD->SBHUFFFS = Table_B6.get();
} else if (cSBHUFFFS == 1) {
- Table_B7 = new CJBig2_HuffmanTable(HuffmanTable_B7,
- FX_ArraySize(HuffmanTable_B7),
- HuffmanTable_HTOOB_B7);
- pTRD->SBHUFFFS = Table_B7;
+ Table_B7.reset(new CJBig2_HuffmanTable(HuffmanTable_B7,
+ FX_ArraySize(HuffmanTable_B7),
+ HuffmanTable_HTOOB_B7));
+ pTRD->SBHUFFFS = Table_B7.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pTRD->SBHUFFFS = pSeg->m_Result.ht;
}
if (cSBHUFFDS == 0) {
- Table_B8 = new CJBig2_HuffmanTable(HuffmanTable_B8,
- FX_ArraySize(HuffmanTable_B8),
- HuffmanTable_HTOOB_B8);
- pTRD->SBHUFFDS = Table_B8;
+ Table_B8.reset(new CJBig2_HuffmanTable(HuffmanTable_B8,
+ FX_ArraySize(HuffmanTable_B8),
+ HuffmanTable_HTOOB_B8));
+ pTRD->SBHUFFDS = Table_B8.get();
} else if (cSBHUFFDS == 1) {
- Table_B9 = new CJBig2_HuffmanTable(HuffmanTable_B9,
- FX_ArraySize(HuffmanTable_B9),
- HuffmanTable_HTOOB_B9);
- pTRD->SBHUFFDS = Table_B9;
+ Table_B9.reset(new CJBig2_HuffmanTable(HuffmanTable_B9,
+ FX_ArraySize(HuffmanTable_B9),
+ HuffmanTable_HTOOB_B9));
+ pTRD->SBHUFFDS = Table_B9.get();
} else if (cSBHUFFDS == 2) {
- Table_B10 = new CJBig2_HuffmanTable(HuffmanTable_B10,
- FX_ArraySize(HuffmanTable_B10),
- HuffmanTable_HTOOB_B10);
- pTRD->SBHUFFDS = Table_B10;
+ Table_B10.reset(new CJBig2_HuffmanTable(HuffmanTable_B10,
+ FX_ArraySize(HuffmanTable_B10),
+ HuffmanTable_HTOOB_B10));
+ pTRD->SBHUFFDS = Table_B10.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pTRD->SBHUFFDS = pSeg->m_Result.ht;
}
if (cSBHUFFDT == 0) {
- Table_B11 = new CJBig2_HuffmanTable(HuffmanTable_B11,
- FX_ArraySize(HuffmanTable_B11),
- HuffmanTable_HTOOB_B11);
- pTRD->SBHUFFDT = Table_B11;
+ Table_B11.reset(new CJBig2_HuffmanTable(HuffmanTable_B11,
+ FX_ArraySize(HuffmanTable_B11),
+ HuffmanTable_HTOOB_B11));
+ pTRD->SBHUFFDT = Table_B11.get();
} else if (cSBHUFFDT == 1) {
- Table_B12 = new CJBig2_HuffmanTable(HuffmanTable_B12,
- FX_ArraySize(HuffmanTable_B12),
- HuffmanTable_HTOOB_B12);
- pTRD->SBHUFFDT = Table_B12;
+ Table_B12.reset(new CJBig2_HuffmanTable(HuffmanTable_B12,
+ FX_ArraySize(HuffmanTable_B12),
+ HuffmanTable_HTOOB_B12));
+ pTRD->SBHUFFDT = Table_B12.get();
} else if (cSBHUFFDT == 2) {
- Table_B13 = new CJBig2_HuffmanTable(HuffmanTable_B13,
- FX_ArraySize(HuffmanTable_B13),
- HuffmanTable_HTOOB_B13);
- pTRD->SBHUFFDT = Table_B13;
+ Table_B13.reset(new CJBig2_HuffmanTable(HuffmanTable_B13,
+ FX_ArraySize(HuffmanTable_B13),
+ HuffmanTable_HTOOB_B13));
+ pTRD->SBHUFFDT = Table_B13.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pTRD->SBHUFFDT = pSeg->m_Result.ht;
}
if (cSBHUFFRDW == 0) {
- Table_B14 = new CJBig2_HuffmanTable(HuffmanTable_B14,
- FX_ArraySize(HuffmanTable_B14),
- HuffmanTable_HTOOB_B14);
- pTRD->SBHUFFRDW = Table_B14;
+ Table_B14.reset(new CJBig2_HuffmanTable(HuffmanTable_B14,
+ FX_ArraySize(HuffmanTable_B14),
+ HuffmanTable_HTOOB_B14));
+ pTRD->SBHUFFRDW = Table_B14.get();
} else if (cSBHUFFRDW == 1) {
- Table_B15 = new CJBig2_HuffmanTable(HuffmanTable_B15,
- FX_ArraySize(HuffmanTable_B15),
- HuffmanTable_HTOOB_B15);
- pTRD->SBHUFFRDW = Table_B15;
+ Table_B15.reset(new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ pTRD->SBHUFFRDW = Table_B15.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pTRD->SBHUFFRDW = pSeg->m_Result.ht;
}
if (cSBHUFFRDH == 0) {
if (!Table_B14) {
- Table_B14 = new CJBig2_HuffmanTable(HuffmanTable_B14,
- FX_ArraySize(HuffmanTable_B14),
- HuffmanTable_HTOOB_B14);
+ Table_B14.reset(new CJBig2_HuffmanTable(HuffmanTable_B14,
+ FX_ArraySize(HuffmanTable_B14),
+ HuffmanTable_HTOOB_B14));
}
- pTRD->SBHUFFRDH = Table_B14;
+ pTRD->SBHUFFRDH = Table_B14.get();
} else if (cSBHUFFRDH == 1) {
if (!Table_B15) {
- Table_B15 = new CJBig2_HuffmanTable(HuffmanTable_B15,
- FX_ArraySize(HuffmanTable_B15),
- HuffmanTable_HTOOB_B15);
+ Table_B15.reset(new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
}
- pTRD->SBHUFFRDH = Table_B15;
+ pTRD->SBHUFFRDH = Table_B15.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pTRD->SBHUFFRDH = pSeg->m_Result.ht;
}
if (cSBHUFFRDX == 0) {
if (!Table_B14) {
- Table_B14 = new CJBig2_HuffmanTable(HuffmanTable_B14,
- FX_ArraySize(HuffmanTable_B14),
- HuffmanTable_HTOOB_B14);
+ Table_B14.reset(new CJBig2_HuffmanTable(HuffmanTable_B14,
+ FX_ArraySize(HuffmanTable_B14),
+ HuffmanTable_HTOOB_B14));
}
- pTRD->SBHUFFRDX = Table_B14;
+ pTRD->SBHUFFRDX = Table_B14.get();
} else if (cSBHUFFRDX == 1) {
if (!Table_B15) {
- Table_B15 = new CJBig2_HuffmanTable(HuffmanTable_B15,
- FX_ArraySize(HuffmanTable_B15),
- HuffmanTable_HTOOB_B15);
+ Table_B15.reset(new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
}
- pTRD->SBHUFFRDX = Table_B15;
+ pTRD->SBHUFFRDX = Table_B15.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pTRD->SBHUFFRDX = pSeg->m_Result.ht;
}
if (cSBHUFFRDY == 0) {
if (!Table_B14) {
- Table_B14 = new CJBig2_HuffmanTable(HuffmanTable_B14,
- FX_ArraySize(HuffmanTable_B14),
- HuffmanTable_HTOOB_B14);
+ Table_B14.reset(new CJBig2_HuffmanTable(HuffmanTable_B14,
+ FX_ArraySize(HuffmanTable_B14),
+ HuffmanTable_HTOOB_B14));
}
- pTRD->SBHUFFRDY = Table_B14;
+ pTRD->SBHUFFRDY = Table_B14.get();
} else if (cSBHUFFRDY == 1) {
if (!Table_B15) {
- Table_B15 = new CJBig2_HuffmanTable(HuffmanTable_B15,
- FX_ArraySize(HuffmanTable_B15),
- HuffmanTable_HTOOB_B15);
+ Table_B15.reset(new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
}
- pTRD->SBHUFFRDY = Table_B15;
+ pTRD->SBHUFFRDY = Table_B15.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pTRD->SBHUFFRDY = pSeg->m_Result.ht;
}
if (cSBHUFFRSIZE == 0) {
- Table_B1 = new CJBig2_HuffmanTable(HuffmanTable_B1,
- FX_ArraySize(HuffmanTable_B1),
- HuffmanTable_HTOOB_B1);
- pTRD->SBHUFFRSIZE = Table_B1;
+ Table_B1.reset(new CJBig2_HuffmanTable(HuffmanTable_B1,
+ FX_ArraySize(HuffmanTable_B1),
+ HuffmanTable_HTOOB_B1));
+ pTRD->SBHUFFRSIZE = Table_B1.get();
} else {
- pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
- if (!pSeg) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ CJBig2_Segment* pSeg =
+ findReferredSegmentByTypeAndIndex(pSegment, 53, ++nIndex);
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
pTRD->SBHUFFRSIZE = pSeg->m_Result.ht;
}
}
+ nonstd::unique_ptr<JBig2ArithCtx, FxFreeDeleter> grContext;
if (pTRD->SBREFINE == 1) {
- dwTemp = pTRD->SBRTEMPLATE ? 1 << 10 : 1 << 13;
- grContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memset(grContext, 0, sizeof(JBig2ArithCtx) * dwTemp);
+ const size_t size = GetRefAggContextSize(pTRD->SBRTEMPLATE);
+ grContext.reset(FX_Alloc(JBig2ArithCtx, size));
+ JBIG2_memset(grContext.get(), 0, sizeof(JBig2ArithCtx) * size);
}
if (pTRD->SBHUFF == 0) {
- pArithDecoder = new CJBig2_ArithDecoder(m_pStream.get());
+ nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
+ new CJBig2_ArithDecoder(m_pStream.get()));
pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
- pSegment->m_Result.im = pTRD->decode_Arith(pArithDecoder, grContext);
- delete pArithDecoder;
- if (pSegment->m_Result.im == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ pSegment->m_Result.im =
+ pTRD->decode_Arith(pArithDecoder.get(), grContext.get());
+ if (!pSegment->m_Result.im)
+ return JBIG2_ERROR_FATAL;
m_pStream->alignByte();
m_pStream->offset(2);
} else {
pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
- pSegment->m_Result.im = pTRD->decode_Huffman(m_pStream.get(), grContext);
- if (pSegment->m_Result.im == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ pSegment->m_Result.im =
+ pTRD->decode_Huffman(m_pStream.get(), grContext.get());
+ if (!pSegment->m_Result.im)
+ return JBIG2_ERROR_FATAL;
m_pStream->alignByte();
}
if (pSegment->m_cFlags.s.type != 4) {
@@ -1024,121 +968,67 @@ int32_t CJBig2_Context::parseTextRegion(CJBig2_Segment* pSegment) {
delete pSegment->m_Result.im;
pSegment->m_Result.im = NULL;
}
- delete pTRD;
- FX_Free(SBSYMS);
- FX_Free(SBSYMCODES);
- FX_Free(grContext);
- delete Table_B1;
- delete Table_B6;
- delete Table_B7;
- delete Table_B8;
- delete Table_B9;
- delete Table_B10;
- delete Table_B11;
- delete Table_B12;
- delete Table_B13;
- delete Table_B14;
- delete Table_B15;
return JBIG2_SUCCESS;
-failed:
- delete pTRD;
- FX_Free(SBSYMS);
- FX_Free(SBSYMCODES);
- FX_Free(grContext);
- delete Table_B1;
- delete Table_B6;
- delete Table_B7;
- delete Table_B8;
- delete Table_B9;
- delete Table_B10;
- delete Table_B11;
- delete Table_B12;
- delete Table_B13;
- delete Table_B14;
- delete Table_B15;
- return nRet;
}
int32_t CJBig2_Context::parsePatternDict(CJBig2_Segment* pSegment,
IFX_Pause* pPause) {
- FX_DWORD dwTemp;
uint8_t cFlags;
- JBig2ArithCtx* gbContext;
- CJBig2_ArithDecoder* pArithDecoder;
- int32_t nRet;
- CJBig2_PDDProc* pPDD = new CJBig2_PDDProc();
- if ((m_pStream->read1Byte(&cFlags) != 0) ||
- (m_pStream->read1Byte(&pPDD->HDPW) != 0) ||
- (m_pStream->read1Byte(&pPDD->HDPH) != 0) ||
- (m_pStream->readInteger(&pPDD->GRAYMAX) != 0)) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
- if (pPDD->GRAYMAX > JBIG2_MAX_PATTERN_INDEX) {
- nRet = JBIG2_ERROR_LIMIT;
- goto failed;
+ nonstd::unique_ptr<CJBig2_PDDProc> pPDD(new CJBig2_PDDProc);
+ if (m_pStream->read1Byte(&cFlags) != 0 ||
+ m_pStream->read1Byte(&pPDD->HDPW) != 0 ||
+ m_pStream->read1Byte(&pPDD->HDPH) != 0 ||
+ m_pStream->readInteger(&pPDD->GRAYMAX) != 0) {
+ return JBIG2_ERROR_TOO_SHORT;
}
+ if (pPDD->GRAYMAX > JBIG2_MAX_PATTERN_INDEX)
+ return JBIG2_ERROR_LIMIT;
+
pPDD->HDMMR = cFlags & 0x01;
pPDD->HDTEMPLATE = (cFlags >> 1) & 0x03;
pSegment->m_nResultType = JBIG2_PATTERN_DICT_POINTER;
if (pPDD->HDMMR == 0) {
- dwTemp =
- pPDD->HDTEMPLATE == 0 ? 65536 : pPDD->HDTEMPLATE == 1 ? 8192 : 1024;
- gbContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memset(gbContext, 0, sizeof(JBig2ArithCtx) * dwTemp);
- pArithDecoder = new CJBig2_ArithDecoder(m_pStream.get());
+ const size_t size = GetHuffContextSize(pPDD->HDTEMPLATE);
+ nonstd::unique_ptr<JBig2ArithCtx, FxFreeDeleter> gbContext(
+ FX_Alloc(JBig2ArithCtx, size));
+ JBIG2_memset(gbContext.get(), 0, sizeof(JBig2ArithCtx) * size);
+ nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
+ new CJBig2_ArithDecoder(m_pStream.get()));
pSegment->m_Result.pd =
- pPDD->decode_Arith(pArithDecoder, gbContext, pPause);
- delete pArithDecoder;
- if (pSegment->m_Result.pd == NULL) {
- FX_Free(gbContext);
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
- FX_Free(gbContext);
+ pPDD->decode_Arith(pArithDecoder.get(), gbContext.get(), pPause);
+ if (!pSegment->m_Result.pd)
+ return JBIG2_ERROR_FATAL;
+
m_pStream->alignByte();
m_pStream->offset(2);
} else {
pSegment->m_Result.pd = pPDD->decode_MMR(m_pStream.get(), pPause);
- if (pSegment->m_Result.pd == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ if (!pSegment->m_Result.pd)
+ return JBIG2_ERROR_FATAL;
m_pStream->alignByte();
}
- delete pPDD;
return JBIG2_SUCCESS;
-failed:
- delete pPDD;
- return nRet;
}
+
int32_t CJBig2_Context::parseHalftoneRegion(CJBig2_Segment* pSegment,
IFX_Pause* pPause) {
- FX_DWORD dwTemp;
uint8_t cFlags;
JBig2RegionInfo ri;
- CJBig2_Segment* pSeg;
- CJBig2_PatternDict* pPatternDict;
- JBig2ArithCtx* gbContext;
- CJBig2_ArithDecoder* pArithDecoder;
- int32_t nRet;
- CJBig2_HTRDProc* pHRD = new CJBig2_HTRDProc();
- if ((parseRegionInfo(&ri) != JBIG2_SUCCESS) ||
- (m_pStream->read1Byte(&cFlags) != 0) ||
- (m_pStream->readInteger(&pHRD->HGW) != 0) ||
- (m_pStream->readInteger(&pHRD->HGH) != 0) ||
- (m_pStream->readInteger((FX_DWORD*)&pHRD->HGX) != 0) ||
- (m_pStream->readInteger((FX_DWORD*)&pHRD->HGY) != 0) ||
- (m_pStream->readShortInteger(&pHRD->HRX) != 0) ||
- (m_pStream->readShortInteger(&pHRD->HRY) != 0)) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
- if (pHRD->HGW == 0 || pHRD->HGH == 0) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
+ nonstd::unique_ptr<CJBig2_HTRDProc> pHRD(new CJBig2_HTRDProc);
+ if (parseRegionInfo(&ri) != JBIG2_SUCCESS ||
+ m_pStream->read1Byte(&cFlags) != 0 ||
+ m_pStream->readInteger(&pHRD->HGW) != 0 ||
+ m_pStream->readInteger(&pHRD->HGH) != 0 ||
+ m_pStream->readInteger((FX_DWORD*)&pHRD->HGX) != 0 ||
+ m_pStream->readInteger((FX_DWORD*)&pHRD->HGY) != 0 ||
+ m_pStream->readShortInteger(&pHRD->HRX) != 0 ||
+ m_pStream->readShortInteger(&pHRD->HRY) != 0) {
+ return JBIG2_ERROR_TOO_SHORT;
}
+ if (pHRD->HGW == 0 || pHRD->HGH == 0)
+ return JBIG2_ERROR_FATAL;
+
pHRD->HBW = ri.width;
pHRD->HBH = ri.height;
pHRD->HMMR = cFlags & 0x01;
@@ -1146,54 +1036,48 @@ int32_t CJBig2_Context::parseHalftoneRegion(CJBig2_Segment* pSegment,
pHRD->HENABLESKIP = (cFlags >> 3) & 0x01;
pHRD->HCOMBOP = (JBig2ComposeOp)((cFlags >> 4) & 0x07);
pHRD->HDEFPIXEL = (cFlags >> 7) & 0x01;
- if (pSegment->m_nReferred_to_segment_count != 1) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
- pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[0]);
- if ((pSeg == NULL) || (pSeg->m_cFlags.s.type != 16)) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
- pPatternDict = pSeg->m_Result.pd;
- if ((pPatternDict == NULL) || (pPatternDict->NUMPATS == 0)) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ if (pSegment->m_nReferred_to_segment_count != 1)
+ return JBIG2_ERROR_FATAL;
+
+ CJBig2_Segment* pSeg =
+ findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[0]);
+ if (!pSeg || (pSeg->m_cFlags.s.type != 16))
+ return JBIG2_ERROR_FATAL;
+
+ CJBig2_PatternDict* pPatternDict = pSeg->m_Result.pd;
+ if (!pPatternDict || (pPatternDict->NUMPATS == 0))
+ return JBIG2_ERROR_FATAL;
+
pHRD->HNUMPATS = pPatternDict->NUMPATS;
pHRD->HPATS = pPatternDict->HDPATS;
pHRD->HPW = pPatternDict->HDPATS[0]->m_nWidth;
pHRD->HPH = pPatternDict->HDPATS[0]->m_nHeight;
pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
if (pHRD->HMMR == 0) {
- dwTemp = pHRD->HTEMPLATE == 0 ? 65536 : pHRD->HTEMPLATE == 1 ? 8192 : 1024;
- gbContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memset(gbContext, 0, sizeof(JBig2ArithCtx) * dwTemp);
- pArithDecoder = new CJBig2_ArithDecoder(m_pStream.get());
+ const size_t size = GetHuffContextSize(pHRD->HTEMPLATE);
+ nonstd::unique_ptr<JBig2ArithCtx, FxFreeDeleter> gbContext(
+ FX_Alloc(JBig2ArithCtx, size));
+ JBIG2_memset(gbContext.get(), 0, sizeof(JBig2ArithCtx) * size);
+ nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
+ new CJBig2_ArithDecoder(m_pStream.get()));
pSegment->m_Result.im =
- pHRD->decode_Arith(pArithDecoder, gbContext, pPause);
- delete pArithDecoder;
- if (pSegment->m_Result.im == NULL) {
- FX_Free(gbContext);
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
- FX_Free(gbContext);
+ pHRD->decode_Arith(pArithDecoder.get(), gbContext.get(), pPause);
+ if (!pSegment->m_Result.im)
+ return JBIG2_ERROR_FATAL;
+
m_pStream->alignByte();
m_pStream->offset(2);
} else {
pSegment->m_Result.im = pHRD->decode_MMR(m_pStream.get(), pPause);
- if (pSegment->m_Result.im == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ if (!pSegment->m_Result.im)
+ return JBIG2_ERROR_FATAL;
m_pStream->alignByte();
}
if (pSegment->m_cFlags.s.type != 20) {
if (!m_bBufSpecified) {
JBig2PageInfo* pPageInfo = m_PageInfoList.back();
- if ((pPageInfo->m_bIsStriped == 1) &&
- (ri.y + ri.height > m_pPage->m_nHeight)) {
+ if (pPageInfo->m_bIsStriped == 1 &&
+ ri.y + ri.height > m_pPage->m_nHeight) {
m_pPage->expand(ri.y + ri.height, (pPageInfo->m_cFlags & 4) ? 1 : 0);
}
}
@@ -1202,65 +1086,55 @@ int32_t CJBig2_Context::parseHalftoneRegion(CJBig2_Segment* pSegment,
delete pSegment->m_Result.im;
pSegment->m_Result.im = NULL;
}
- delete pHRD;
return JBIG2_SUCCESS;
-failed:
- delete pHRD;
- return nRet;
}
int32_t CJBig2_Context::parseGenericRegion(CJBig2_Segment* pSegment,
IFX_Pause* pPause) {
- FX_DWORD dwTemp;
- uint8_t cFlags;
- int32_t i, nRet;
if (!m_pGRD) {
- m_pGRD.reset(new CJBig2_GRDProc);
- if ((parseRegionInfo(&m_ri) != JBIG2_SUCCESS) ||
- (m_pStream->read1Byte(&cFlags) != 0)) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
- if (m_ri.height < 0 || m_ri.width < 0) {
- nRet = JBIG2_FAILED;
- goto failed;
- }
- m_pGRD->GBW = m_ri.width;
- m_pGRD->GBH = m_ri.height;
- m_pGRD->MMR = cFlags & 0x01;
- m_pGRD->GBTEMPLATE = (cFlags >> 1) & 0x03;
- m_pGRD->TPGDON = (cFlags >> 3) & 0x01;
- if (m_pGRD->MMR == 0) {
- if (m_pGRD->GBTEMPLATE == 0) {
- for (i = 0; i < 8; i++) {
- if (m_pStream->read1Byte((uint8_t*)&m_pGRD->GBAT[i]) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
+ nonstd::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc);
+ uint8_t cFlags;
+ if (parseRegionInfo(&m_ri) != JBIG2_SUCCESS ||
+ m_pStream->read1Byte(&cFlags) != 0) {
+ return JBIG2_ERROR_TOO_SHORT;
+ }
+ if (m_ri.height < 0 || m_ri.width < 0)
+ return JBIG2_FAILED;
+
+ pGRD->GBW = m_ri.width;
+ pGRD->GBH = m_ri.height;
+ pGRD->MMR = cFlags & 0x01;
+ pGRD->GBTEMPLATE = (cFlags >> 1) & 0x03;
+ pGRD->TPGDON = (cFlags >> 3) & 0x01;
+ if (pGRD->MMR == 0) {
+ if (pGRD->GBTEMPLATE == 0) {
+ for (int32_t i = 0; i < 8; ++i) {
+ if (m_pStream->read1Byte((uint8_t*)&pGRD->GBAT[i]) != 0) {
+ return JBIG2_ERROR_TOO_SHORT;
}
}
} else {
- for (i = 0; i < 2; i++) {
- if (m_pStream->read1Byte((uint8_t*)&m_pGRD->GBAT[i]) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
+ for (int32_t i = 0; i < 2; ++i) {
+ if (m_pStream->read1Byte((uint8_t*)&pGRD->GBAT[i]) != 0) {
+ return JBIG2_ERROR_TOO_SHORT;
}
}
}
}
- m_pGRD->USESKIP = 0;
+ pGRD->USESKIP = 0;
+ m_pGRD = nonstd::move(pGRD);
}
pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
if (m_pGRD->MMR == 0) {
- dwTemp =
- m_pGRD->GBTEMPLATE == 0 ? 65536 : m_pGRD->GBTEMPLATE == 1 ? 8192 : 1024;
- if (m_gbContext == NULL) {
- m_gbContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memset(m_gbContext, 0, sizeof(JBig2ArithCtx) * dwTemp);
- }
- if (m_pArithDecoder == NULL) {
- m_pArithDecoder = new CJBig2_ArithDecoder(m_pStream.get());
+ if (!m_gbContext) {
+ const size_t size = GetHuffContextSize(m_pGRD->GBTEMPLATE);
+ m_gbContext = FX_Alloc(JBig2ArithCtx, size);
+ JBIG2_memset(m_gbContext, 0, sizeof(JBig2ArithCtx) * size);
+ }
+ if (!m_pArithDecoder) {
+ m_pArithDecoder.reset(new CJBig2_ArithDecoder(m_pStream.get()));
m_ProcessingStatus = m_pGRD->Start_decode_Arith(
- &pSegment->m_Result.im, m_pArithDecoder, m_gbContext, pPause);
+ &pSegment->m_Result.im, m_pArithDecoder.get(), m_gbContext, pPause);
} else {
m_ProcessingStatus = m_pGRD->Continue_decode(pPause);
}
@@ -1281,17 +1155,14 @@ int32_t CJBig2_Context::parseGenericRegion(CJBig2_Segment* pSegment,
}
return JBIG2_SUCCESS;
} else {
- delete m_pArithDecoder;
- m_pArithDecoder = NULL;
- if (pSegment->m_Result.im == NULL) {
- FX_Free(m_gbContext);
- nRet = JBIG2_ERROR_FATAL;
- m_gbContext = NULL;
- m_ProcessingStatus = FXCODEC_STATUS_ERROR;
- goto failed;
- }
+ m_pArithDecoder.reset();
FX_Free(m_gbContext);
m_gbContext = NULL;
+ if (!pSegment->m_Result.im) {
+ m_ProcessingStatus = FXCODEC_STATUS_ERROR;
+ m_pGRD.reset();
+ return JBIG2_ERROR_FATAL;
+ }
m_pStream->alignByte();
m_pStream->offset(2);
}
@@ -1301,9 +1172,9 @@ int32_t CJBig2_Context::parseGenericRegion(CJBig2_Segment* pSegment,
while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
m_pGRD->Continue_decode(pPause);
}
- if (pSegment->m_Result.im == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
+ if (!pSegment->m_Result.im) {
+ m_pGRD.reset();
+ return JBIG2_ERROR_FATAL;
}
m_pStream->alignByte();
}
@@ -1325,73 +1196,59 @@ int32_t CJBig2_Context::parseGenericRegion(CJBig2_Segment* pSegment,
}
m_pGRD.reset();
return JBIG2_SUCCESS;
-failed:
- m_pGRD.reset();
- return nRet;
}
int32_t CJBig2_Context::parseGenericRefinementRegion(CJBig2_Segment* pSegment) {
- FX_DWORD dwTemp;
JBig2RegionInfo ri;
- CJBig2_Segment* pSeg;
- int32_t i, nRet;
uint8_t cFlags;
- JBig2ArithCtx* grContext;
- CJBig2_ArithDecoder* pArithDecoder;
- CJBig2_GRRDProc* pGRRD = new CJBig2_GRRDProc();
- if ((parseRegionInfo(&ri) != JBIG2_SUCCESS) ||
- (m_pStream->read1Byte(&cFlags) != 0)) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
+ if (parseRegionInfo(&ri) != JBIG2_SUCCESS ||
+ m_pStream->read1Byte(&cFlags) != 0) {
+ return JBIG2_ERROR_TOO_SHORT;
}
+ nonstd::unique_ptr<CJBig2_GRRDProc> pGRRD(new CJBig2_GRRDProc);
pGRRD->GRW = ri.width;
pGRRD->GRH = ri.height;
pGRRD->GRTEMPLATE = cFlags & 0x01;
pGRRD->TPGRON = (cFlags >> 1) & 0x01;
if (pGRRD->GRTEMPLATE == 0) {
- for (i = 0; i < 4; i++) {
- if (m_pStream->read1Byte((uint8_t*)&pGRRD->GRAT[i]) != 0) {
- nRet = JBIG2_ERROR_TOO_SHORT;
- goto failed;
- }
+ for (int32_t i = 0; i < 4; ++i) {
+ if (m_pStream->read1Byte((uint8_t*)&pGRRD->GRAT[i]) != 0)
+ return JBIG2_ERROR_TOO_SHORT;
}
}
- pSeg = NULL;
+ CJBig2_Segment* pSeg = nullptr;
if (pSegment->m_nReferred_to_segment_count > 0) {
- for (i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
+ int32_t i;
+ for (i = 0; i < pSegment->m_nReferred_to_segment_count; ++i) {
pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[0]);
- if (pSeg == NULL) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
- if ((pSeg->m_cFlags.s.type == 4) || (pSeg->m_cFlags.s.type == 20) ||
- (pSeg->m_cFlags.s.type == 36) || (pSeg->m_cFlags.s.type == 40)) {
+ if (!pSeg)
+ return JBIG2_ERROR_FATAL;
+
+ if (pSeg->m_cFlags.s.type == 4 || pSeg->m_cFlags.s.type == 20 ||
+ pSeg->m_cFlags.s.type == 36 || pSeg->m_cFlags.s.type == 40) {
break;
}
}
- if (i >= pSegment->m_nReferred_to_segment_count) {
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
+ if (i >= pSegment->m_nReferred_to_segment_count)
+ return JBIG2_ERROR_FATAL;
+
pGRRD->GRREFERENCE = pSeg->m_Result.im;
} else {
pGRRD->GRREFERENCE = m_pPage.get();
}
pGRRD->GRREFERENCEDX = 0;
pGRRD->GRREFERENCEDY = 0;
- dwTemp = pGRRD->GRTEMPLATE ? 1 << 10 : 1 << 13;
- grContext = FX_Alloc(JBig2ArithCtx, dwTemp);
- JBIG2_memset(grContext, 0, sizeof(JBig2ArithCtx) * dwTemp);
- pArithDecoder = new CJBig2_ArithDecoder(m_pStream.get());
+ const size_t size = GetRefAggContextSize(pGRRD->GRTEMPLATE);
+ nonstd::unique_ptr<JBig2ArithCtx, FxFreeDeleter> grContext(
+ FX_Alloc(JBig2ArithCtx, size));
+ JBIG2_memset(grContext.get(), 0, sizeof(JBig2ArithCtx) * size);
+ nonstd::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
+ new CJBig2_ArithDecoder(m_pStream.get()));
pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
- pSegment->m_Result.im = pGRRD->decode(pArithDecoder, grContext);
- delete pArithDecoder;
- if (pSegment->m_Result.im == NULL) {
- FX_Free(grContext);
- nRet = JBIG2_ERROR_FATAL;
- goto failed;
- }
- FX_Free(grContext);
+ pSegment->m_Result.im = pGRRD->decode(pArithDecoder.get(), grContext.get());
+ if (!pSegment->m_Result.im)
+ return JBIG2_ERROR_FATAL;
+
m_pStream->alignByte();
m_pStream->offset(2);
if (pSegment->m_cFlags.s.type != 40) {
@@ -1407,12 +1264,9 @@ int32_t CJBig2_Context::parseGenericRefinementRegion(CJBig2_Segment* pSegment) {
delete pSegment->m_Result.im;
pSegment->m_Result.im = NULL;
}
- delete pGRRD;
return JBIG2_SUCCESS;
-failed:
- delete pGRRD;
- return nRet;
}
+
int32_t CJBig2_Context::parseTable(CJBig2_Segment* pSegment) {
pSegment->m_nResultType = JBIG2_HUFFMAN_TABLE_POINTER;
pSegment->m_Result.ht = new CJBig2_HuffmanTable(m_pStream.get());
@@ -1424,103 +1278,97 @@ int32_t CJBig2_Context::parseTable(CJBig2_Segment* pSegment) {
m_pStream->alignByte();
return JBIG2_SUCCESS;
}
+
int32_t CJBig2_Context::parseRegionInfo(JBig2RegionInfo* pRI) {
- if ((m_pStream->readInteger((FX_DWORD*)&pRI->width) != 0) ||
- (m_pStream->readInteger((FX_DWORD*)&pRI->height) != 0) ||
- (m_pStream->readInteger((FX_DWORD*)&pRI->x) != 0) ||
- (m_pStream->readInteger((FX_DWORD*)&pRI->y) != 0) ||
- (m_pStream->read1Byte(&pRI->flags) != 0)) {
+ if (m_pStream->readInteger((FX_DWORD*)&pRI->width) != 0 ||
+ m_pStream->readInteger((FX_DWORD*)&pRI->height) != 0 ||
+ m_pStream->readInteger((FX_DWORD*)&pRI->x) != 0 ||
+ m_pStream->readInteger((FX_DWORD*)&pRI->y) != 0 ||
+ m_pStream->read1Byte(&pRI->flags) != 0) {
return JBIG2_ERROR_TOO_SHORT;
}
return JBIG2_SUCCESS;
}
+
JBig2HuffmanCode* CJBig2_Context::decodeSymbolIDHuffmanTable(
CJBig2_BitStream* pStream,
FX_DWORD SBNUMSYMS) {
- JBig2HuffmanCode* SBSYMCODES;
- int32_t runcodes[35];
- int32_t runcodes_len[35];
- int32_t runcode;
- int32_t i;
- int32_t j;
- int32_t nVal;
- int32_t nBits;
+ size_t kRunCodesSize = 35;
+ int32_t runcodes[kRunCodesSize];
+ int32_t runcodes_len[kRunCodesSize];
+ for (int32_t i = 0; i < kRunCodesSize; ++i) {
+ if (pStream->readNBits(4, &runcodes_len[i]) != 0)
+ return nullptr;
+ }
+ huffman_assign_code(runcodes, runcodes_len, kRunCodesSize);
+
+ nonstd::unique_ptr<JBig2HuffmanCode, FxFreeDeleter> SBSYMCODES(
+ FX_Alloc(JBig2HuffmanCode, SBNUMSYMS));
int32_t run;
- FX_DWORD nTemp;
- SBSYMCODES = FX_Alloc(JBig2HuffmanCode, SBNUMSYMS);
- for (i = 0; i < 35; i++) {
- if (pStream->readNBits(4, &runcodes_len[i]) != 0) {
- goto failed;
- }
- }
- huffman_assign_code(runcodes, runcodes_len, 35);
- i = 0;
+ int32_t i = 0;
while (i < (int)SBNUMSYMS) {
- nVal = 0;
- nBits = 0;
- for (;;) {
- if (pStream->read1Bit(&nTemp) != 0) {
- goto failed;
- }
+ int32_t j;
+ int32_t nVal = 0;
+ int32_t nBits = 0;
+ FX_DWORD nTemp;
+ while (true) {
+ if (pStream->read1Bit(&nTemp) != 0)
+ return nullptr;
+
nVal = (nVal << 1) | nTemp;
- nBits++;
- for (j = 0; j < 35; j++) {
- if ((nBits == runcodes_len[j]) && (nVal == runcodes[j])) {
+ ++nBits;
+ for (j = 0; j < kRunCodesSize; ++j) {
+ if (nBits == runcodes_len[j] && nVal == runcodes[j]) {
break;
}
}
- if (j < 35) {
+ if (j < kRunCodesSize) {
break;
}
}
- runcode = j;
+ int32_t runcode = j;
if (runcode < 32) {
- SBSYMCODES[i].codelen = runcode;
+ SBSYMCODES.get()[i].codelen = runcode;
run = 0;
} else if (runcode == 32) {
- if (pStream->readNBits(2, &nTemp) != 0) {
- goto failed;
- }
+ if (pStream->readNBits(2, &nTemp) != 0)
+ return nullptr;
run = nTemp + 3;
} else if (runcode == 33) {
- if (pStream->readNBits(3, &nTemp) != 0) {
- goto failed;
- }
+ if (pStream->readNBits(3, &nTemp) != 0)
+ return nullptr;
run = nTemp + 3;
} else if (runcode == 34) {
- if (pStream->readNBits(7, &nTemp) != 0) {
- goto failed;
- }
+ if (pStream->readNBits(7, &nTemp) != 0)
+ return nullptr;
run = nTemp + 11;
}
if (run > 0) {
- if (i + run > (int)SBNUMSYMS) {
- goto failed;
- }
- for (j = 0; j < run; j++) {
+ if (i + run > (int)SBNUMSYMS)
+ return nullptr;
+ for (j = 0; j < run; ++j) {
if (runcode == 32 && i > 0) {
- SBSYMCODES[i + j].codelen = SBSYMCODES[i - 1].codelen;
+ SBSYMCODES.get()[i + j].codelen = SBSYMCODES.get()[i - 1].codelen;
} else {
- SBSYMCODES[i + j].codelen = 0;
+ SBSYMCODES.get()[i + j].codelen = 0;
}
}
i += run;
} else {
- i++;
+ ++i;
}
}
- huffman_assign_code(SBSYMCODES, SBNUMSYMS);
- return SBSYMCODES;
-failed:
- FX_Free(SBSYMCODES);
- return NULL;
+ huffman_assign_code(SBSYMCODES.get(), SBNUMSYMS);
+ return SBSYMCODES.release();
}
+
void CJBig2_Context::huffman_assign_code(int* CODES, int* PREFLEN, int NTEMP) {
+ // TODO(thestig) CJBig2_HuffmanTable::parseFromCodedBuffer() has similar code.
int CURLEN, LENMAX, CURCODE, CURTEMP, i;
int* LENCOUNT;
int* FIRSTCODE;
LENMAX = 0;
- for (i = 0; i < NTEMP; i++) {
+ for (i = 0; i < NTEMP; ++i) {
if (PREFLEN[i] > LENMAX) {
LENMAX = PREFLEN[i];
}
@@ -1528,8 +1376,8 @@ void CJBig2_Context::huffman_assign_code(int* CODES, int* PREFLEN, int NTEMP) {
LENCOUNT = FX_Alloc(int, LENMAX + 1);
JBIG2_memset(LENCOUNT, 0, sizeof(int) * (LENMAX + 1));
FIRSTCODE = FX_Alloc(int, LENMAX + 1);
- for (i = 0; i < NTEMP; i++) {
- LENCOUNT[PREFLEN[i]]++;
+ for (i = 0; i < NTEMP; ++i) {
+ ++LENCOUNT[PREFLEN[i]];
}
CURLEN = 1;
FIRSTCODE[0] = 0;
@@ -1556,7 +1404,7 @@ void CJBig2_Context::huffman_assign_code(JBig2HuffmanCode* SBSYMCODES,
int* LENCOUNT;
int* FIRSTCODE;
LENMAX = 0;
- for (i = 0; i < NTEMP; i++) {
+ for (i = 0; i < NTEMP; ++i) {
if (SBSYMCODES[i].codelen > LENMAX) {
LENMAX = SBSYMCODES[i].codelen;
}
@@ -1564,8 +1412,8 @@ void CJBig2_Context::huffman_assign_code(JBig2HuffmanCode* SBSYMCODES,
LENCOUNT = FX_Alloc(int, (LENMAX + 1));
JBIG2_memset(LENCOUNT, 0, sizeof(int) * (LENMAX + 1));
FIRSTCODE = FX_Alloc(int, (LENMAX + 1));
- for (i = 0; i < NTEMP; i++) {
- LENCOUNT[SBSYMCODES[i].codelen]++;
+ for (i = 0; i < NTEMP; ++i) {
+ ++LENCOUNT[SBSYMCODES[i].codelen];
}
CURLEN = 1;
FIRSTCODE[0] = 0;
diff --git a/core/src/fxcodec/jbig2/JBig2_Context.h b/core/src/fxcodec/jbig2/JBig2_Context.h
index 8681609ca0..3c283d1d5b 100644
--- a/core/src/fxcodec/jbig2/JBig2_Context.h
+++ b/core/src/fxcodec/jbig2/JBig2_Context.h
@@ -118,7 +118,7 @@ class CJBig2_Context {
int32_t m_PauseStep;
IFX_Pause* m_pPause;
FXCODEC_STATUS m_ProcessingStatus;
- CJBig2_ArithDecoder* m_pArithDecoder;
+ nonstd::unique_ptr<CJBig2_ArithDecoder> m_pArithDecoder;
nonstd::unique_ptr<CJBig2_GRDProc> m_pGRD;
JBig2ArithCtx* m_gbContext;
nonstd::unique_ptr<CJBig2_Segment> m_pSegment;
diff --git a/core/src/fxcodec/jbig2/JBig2_GsidProc.cpp b/core/src/fxcodec/jbig2/JBig2_GsidProc.cpp
index b97a212926..d89bb8f249 100644
--- a/core/src/fxcodec/jbig2/JBig2_GsidProc.cpp
+++ b/core/src/fxcodec/jbig2/JBig2_GsidProc.cpp
@@ -15,15 +15,6 @@
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;
@@ -46,105 +37,100 @@ FX_DWORD* CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
pGRD->GBAT[6] = -2;
pGRD->GBAT[7] = -2;
}
+
+ nonstd::unique_ptr<CJBig2_Image*, FxFreeDeleter> GSPLANES(
+ FX_Alloc(CJBig2_Image*, GSBPP));
+ JBIG2_memset(GSPLANES.get(), 0, sizeof(CJBig2_Image*) * GSBPP);
FXCODEC_STATUS status = pGRD->Start_decode_Arith(
- &GSPLANES[GSBPP - 1], pArithDecoder, gbContext, nullptr);
+ &GSPLANES.get()[GSBPP - 1], pArithDecoder, gbContext, nullptr);
while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
pGRD->Continue_decode(pPause);
}
- if (!GSPLANES[GSBPP - 1]) {
- goto failed;
- }
- J = GSBPP - 2;
+ if (!GSPLANES.get()[GSBPP - 1])
+ return nullptr;
+
+ int32_t J = GSBPP - 2;
while (J >= 0) {
FXCODEC_STATUS status = pGRD->Start_decode_Arith(
- &GSPLANES[J], pArithDecoder, gbContext, nullptr);
+ &GSPLANES.get()[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;
+ if (!GSPLANES.get()[J]) {
+ for (int32_t K = GSBPP - 1; K > J; --K) {
+ delete GSPLANES.get()[K];
+ return nullptr;
}
}
- GSPLANES[J]->composeFrom(0, 0, GSPLANES[J + 1], JBIG2_COMPOSE_XOR);
+ GSPLANES.get()[J]->composeFrom(0, 0, GSPLANES.get()[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;
+ nonstd::unique_ptr<FX_DWORD, FxFreeDeleter> GSVALS(
+ FX_Alloc2D(FX_DWORD, GSW, GSH));
+ JBIG2_memset(GSVALS.get(), 0, sizeof(FX_DWORD) * GSW * GSH);
+ for (FX_DWORD y = 0; y < GSH; ++y) {
+ for (FX_DWORD x = 0; x < GSW; ++x) {
+ for (J = 0; J < GSBPP; ++J) {
+ GSVALS.get()[y * GSW + x] |= GSPLANES.get()[J]->getPixel(x, y) << J;
}
}
}
- for (J = 0; J < GSBPP; J++) {
- delete GSPLANES[J];
+ for (J = 0; J < GSBPP; ++J) {
+ delete GSPLANES.get()[J];
}
- FX_Free(GSPLANES);
- return GSVALS;
-failed:
- FX_Free(GSPLANES);
- FX_Free(GSVALS);
- return nullptr;
+ return GSVALS.release();
}
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;
+
+ nonstd::unique_ptr<CJBig2_Image*> GSPLANES(FX_Alloc(CJBig2_Image*, GSBPP));
+ JBIG2_memset(GSPLANES.get(), 0, sizeof(CJBig2_Image*) * GSBPP);
FXCODEC_STATUS status =
- pGRD->Start_decode_MMR(&GSPLANES[GSBPP - 1], pStream, nullptr);
+ pGRD->Start_decode_MMR(&GSPLANES.get()[GSBPP - 1], pStream, nullptr);
while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
pGRD->Continue_decode(pPause);
}
- if (!GSPLANES[GSBPP - 1]) {
- goto failed;
- }
+ if (!GSPLANES.get()[GSBPP - 1])
+ return nullptr;
+
pStream->alignByte();
pStream->offset(3);
- J = GSBPP - 2;
+ int32_t J = GSBPP - 2;
while (J >= 0) {
FXCODEC_STATUS status =
- pGRD->Start_decode_MMR(&GSPLANES[J], pStream, nullptr);
+ pGRD->Start_decode_MMR(&GSPLANES.get()[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;
+ if (!GSPLANES.get()[J]) {
+ for (int32_t K = GSBPP - 1; K > J; --K) {
+ delete GSPLANES.get()[K];
+ return nullptr;
}
}
pStream->alignByte();
pStream->offset(3);
- GSPLANES[J]->composeFrom(0, 0, GSPLANES[J + 1], JBIG2_COMPOSE_XOR);
+ GSPLANES.get()[J]->composeFrom(0, 0, GSPLANES.get()[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;
+ nonstd::unique_ptr<FX_DWORD> GSVALS(FX_Alloc2D(FX_DWORD, GSW, GSH));
+ JBIG2_memset(GSVALS.get(), 0, sizeof(FX_DWORD) * GSW * GSH);
+ for (FX_DWORD y = 0; y < GSH; ++y) {
+ for (FX_DWORD x = 0; x < GSW; ++x) {
+ for (J = 0; J < GSBPP; ++J) {
+ GSVALS.get()[y * GSW + x] |= GSPLANES.get()[J]->getPixel(x, y) << J;
}
}
}
- for (J = 0; J < GSBPP; J++) {
- delete GSPLANES[J];
+ for (J = 0; J < GSBPP; ++J) {
+ delete GSPLANES.get()[J];
}
- FX_Free(GSPLANES);
- return GSVALS;
-failed:
- FX_Free(GSPLANES);
- FX_Free(GSVALS);
- return nullptr;
+ return GSVALS.release();
}
diff --git a/core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp b/core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp
index 704145806a..60b5f3ca37 100644
--- a/core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp
+++ b/core/src/fxcodec/jbig2/JBig2_HuffmanTable.cpp
@@ -8,6 +8,8 @@
#include <string.h>
+#include <vector>
+
#include "../../../include/fxcrt/fx_memory.h"
#include "JBig2_BitStream.h"
@@ -40,7 +42,7 @@ void CJBig2_HuffmanTable::init() {
int CJBig2_HuffmanTable::parseFromStandardTable(const JBig2TableLine* pTable,
int nLines,
FX_BOOL bHTOOB) {
- int CURLEN, LENMAX, CURCODE, CURTEMP, i;
+ int CURLEN, LENMAX, CURCODE, CURTEMP;
int* LENCOUNT;
int* FIRSTCODE;
HTOOB = bHTOOB;
@@ -50,7 +52,7 @@ int CJBig2_HuffmanTable::parseFromStandardTable(const JBig2TableLine* pTable,
RANGELEN = FX_Alloc(int, NTEMP);
RANGELOW = FX_Alloc(int, NTEMP);
LENMAX = 0;
- for (i = 0; i < NTEMP; i++) {
+ for (int i = 0; i < NTEMP; i++) {
PREFLEN[i] = pTable[i].PREFLEN;
RANGELEN[i] = pTable[i].RANDELEN;
RANGELOW[i] = pTable[i].RANGELOW;
@@ -61,7 +63,7 @@ int CJBig2_HuffmanTable::parseFromStandardTable(const JBig2TableLine* pTable,
LENCOUNT = FX_Alloc(int, LENMAX + 1);
JBIG2_memset(LENCOUNT, 0, sizeof(int) * (LENMAX + 1));
FIRSTCODE = FX_Alloc(int, LENMAX + 1);
- for (i = 0; i < NTEMP; i++) {
+ for (int i = 0; i < NTEMP; i++) {
LENCOUNT[PREFLEN[i]]++;
}
CURLEN = 1;
@@ -93,92 +95,77 @@ int CJBig2_HuffmanTable::parseFromStandardTable(const JBig2TableLine* pTable,
RANGELOW = FX_Realloc(int, RANGELOW, nSize); \
}
int CJBig2_HuffmanTable::parseFromCodedBuffer(CJBig2_BitStream* pStream) {
- unsigned char HTPS, HTRS;
- FX_DWORD HTLOW, HTHIGH;
- FX_DWORD CURRANGELOW;
- FX_DWORD nSize = 16;
- int CURLEN, LENMAX, CURCODE, CURTEMP;
- int* LENCOUNT;
- int* FIRSTCODE;
unsigned char cTemp;
- if (pStream->read1Byte(&cTemp) == -1) {
- goto failed;
- }
+ if (pStream->read1Byte(&cTemp) == -1)
+ return FALSE;
+
HTOOB = cTemp & 0x01;
- HTPS = ((cTemp >> 1) & 0x07) + 1;
- HTRS = ((cTemp >> 4) & 0x07) + 1;
+ unsigned char HTPS = ((cTemp >> 1) & 0x07) + 1;
+ unsigned char HTRS = ((cTemp >> 4) & 0x07) + 1;
+ FX_DWORD HTLOW;
+ FX_DWORD HTHIGH;
if (pStream->readInteger(&HTLOW) == -1 ||
pStream->readInteger(&HTHIGH) == -1 || HTLOW > HTHIGH) {
- goto failed;
+ return FALSE;
}
+ FX_DWORD nSize = 16;
PREFLEN = FX_Alloc(int, nSize);
RANGELEN = FX_Alloc(int, nSize);
RANGELOW = FX_Alloc(int, nSize);
- CURRANGELOW = HTLOW;
+ FX_DWORD CURRANGELOW = HTLOW;
NTEMP = 0;
do {
HT_CHECK_MEMORY_ADJUST
if ((pStream->readNBits(HTPS, &PREFLEN[NTEMP]) == -1) ||
(pStream->readNBits(HTRS, &RANGELEN[NTEMP]) == -1)) {
- goto failed;
+ return FALSE;
}
RANGELOW[NTEMP] = CURRANGELOW;
CURRANGELOW = CURRANGELOW + (1 << RANGELEN[NTEMP]);
NTEMP = NTEMP + 1;
} while (CURRANGELOW < HTHIGH);
HT_CHECK_MEMORY_ADJUST
- if (pStream->readNBits(HTPS, &PREFLEN[NTEMP]) == -1) {
- goto failed;
- }
+ if (pStream->readNBits(HTPS, &PREFLEN[NTEMP]) == -1)
+ return FALSE;
+
RANGELEN[NTEMP] = 32;
RANGELOW[NTEMP] = HTLOW - 1;
NTEMP = NTEMP + 1;
HT_CHECK_MEMORY_ADJUST
- if (pStream->readNBits(HTPS, &PREFLEN[NTEMP]) == -1) {
- goto failed;
- }
+ if (pStream->readNBits(HTPS, &PREFLEN[NTEMP]) == -1)
+ return FALSE;
+
RANGELEN[NTEMP] = 32;
RANGELOW[NTEMP] = HTHIGH;
NTEMP = NTEMP + 1;
if (HTOOB) {
HT_CHECK_MEMORY_ADJUST
- if (pStream->readNBits(HTPS, &PREFLEN[NTEMP]) == -1) {
- goto failed;
- }
+ if (pStream->readNBits(HTPS, &PREFLEN[NTEMP]) == -1)
+ return FALSE;
NTEMP = NTEMP + 1;
}
CODES = FX_Alloc(int, NTEMP);
- LENMAX = 0;
+ int LENMAX = 0;
for (int i = 0; i < NTEMP; i++) {
if (PREFLEN[i] > LENMAX) {
LENMAX = PREFLEN[i];
}
}
- LENCOUNT = FX_Alloc(int, (LENMAX + 1));
- JBIG2_memset(LENCOUNT, 0, sizeof(int) * (LENMAX + 1));
- FIRSTCODE = FX_Alloc(int, (LENMAX + 1));
- for (int i = 0; i < NTEMP; i++) {
+
+ std::vector<int> LENCOUNT(LENMAX + 1);
+ for (int i = 0; i < NTEMP; ++i)
LENCOUNT[PREFLEN[i]]++;
- }
- CURLEN = 1;
- FIRSTCODE[0] = 0;
LENCOUNT[0] = 0;
- while (CURLEN <= LENMAX) {
- FIRSTCODE[CURLEN] = (FIRSTCODE[CURLEN - 1] + LENCOUNT[CURLEN - 1]) << 1;
- CURCODE = FIRSTCODE[CURLEN];
- CURTEMP = 0;
- while (CURTEMP < NTEMP) {
- if (PREFLEN[CURTEMP] == CURLEN) {
- CODES[CURTEMP] = CURCODE;
- CURCODE = CURCODE + 1;
- }
- CURTEMP = CURTEMP + 1;
+
+ std::vector<int> FIRSTCODE(LENMAX + 1);
+ FIRSTCODE[0] = 0;
+ for (int i = 0; i <= LENMAX; ++i) {
+ FIRSTCODE[i] = (FIRSTCODE[i - 1] + LENCOUNT[i - 1]) << 1;
+ int CURCODE = FIRSTCODE[i];
+ for (int j = 0; j < NTEMP; ++j) {
+ if (PREFLEN[j] == i)
+ CODES[j] = CURCODE++;
}
- CURLEN = CURLEN + 1;
}
- FX_Free(LENCOUNT);
- FX_Free(FIRSTCODE);
return TRUE;
-failed:
- return FALSE;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 04:04:42 +0000