diff options
Diffstat (limited to 'core/src/fxcodec/jbig2/JBig2_Context.cpp')
| -rw-r--r-- | core/src/fxcodec/jbig2/JBig2_Context.cpp | 1812 |
1 files changed, 1812 insertions, 0 deletions
diff --git a/core/src/fxcodec/jbig2/JBig2_Context.cpp b/core/src/fxcodec/jbig2/JBig2_Context.cpp new file mode 100644 index 0000000000..856c0c3bda --- /dev/null +++ b/core/src/fxcodec/jbig2/JBig2_Context.cpp @@ -0,0 +1,1812 @@ +// 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_Context.h"
+void OutputBitmap(CJBig2_Image* pImage)
+{
+ if(!pImage) {
+ return;
+ }
+}
+CJBig2_Context *CJBig2_Context::CreateContext(CJBig2_Module *pModule, FX_BYTE *pGlobalData, FX_DWORD dwGlobalLength,
+ FX_BYTE *pData, FX_DWORD dwLength, FX_INT32 nStreamType, IFX_Pause* pPause)
+{
+ return new(pModule) CJBig2_Context(pGlobalData, dwGlobalLength, pData, dwLength, nStreamType, pPause);
+}
+void CJBig2_Context::DestroyContext(CJBig2_Context *pContext)
+{
+ if(pContext) {
+ delete pContext;
+ }
+}
+CJBig2_Context::CJBig2_Context(FX_BYTE *pGlobalData, FX_DWORD dwGlobalLength,
+ FX_BYTE *pData, FX_DWORD dwLength, FX_INT32 nStreamType, IFX_Pause* pPause)
+{
+ if(pGlobalData && (dwGlobalLength > 0)) {
+ JBIG2_ALLOC(m_pGlobalContext, CJBig2_Context(NULL, 0, pGlobalData, dwGlobalLength,
+ JBIG2_EMBED_STREAM, pPause));
+ } else {
+ m_pGlobalContext = NULL;
+ }
+ JBIG2_ALLOC(m_pStream, CJBig2_BitStream(pData, dwLength));
+ m_nStreamType = nStreamType;
+ m_nState = JBIG2_OUT_OF_PAGE;
+ JBIG2_ALLOC(m_pSegmentList, CJBig2_List<CJBig2_Segment>);
+ JBIG2_ALLOC(m_pPageInfoList, CJBig2_List<JBig2PageInfo>(1));
+ m_pPage = NULL;
+ m_bBufSpecified = FALSE;
+ m_pPause = pPause;
+ m_nSegmentDecoded = 0;
+ m_PauseStep = 10;
+ m_pArithDecoder = NULL;
+ m_pGRD = NULL;
+ m_gbContext = NULL;
+ m_pSegment = NULL;
+ m_dwOffset = 0;
+ m_ProcessiveStatus = FXCODEC_STATUS_FRAME_READY;
+}
+CJBig2_Context::~CJBig2_Context()
+{
+ if(m_pArithDecoder) {
+ delete m_pArithDecoder;
+ }
+ m_pArithDecoder = NULL;
+ if(m_pGRD) {
+ delete m_pGRD;
+ }
+ m_pGRD = NULL;
+ if(m_gbContext) {
+ delete m_gbContext;
+ }
+ m_gbContext = NULL;
+ if(m_pGlobalContext) {
+ delete m_pGlobalContext;
+ }
+ m_pGlobalContext = NULL;
+ if(m_pPageInfoList) {
+ delete m_pPageInfoList;
+ }
+ m_pPageInfoList = NULL;
+ if(m_bBufSpecified && m_pPage) {
+ delete m_pPage;
+ }
+ m_pPage = NULL;
+ if(m_pStream) {
+ delete m_pStream;
+ }
+ m_pStream = NULL;
+ if(m_pSegmentList) {
+ delete m_pSegmentList;
+ }
+ m_pSegmentList = NULL;
+}
+FX_INT32 CJBig2_Context::decodeFile(IFX_Pause* pPause)
+{
+ FX_BYTE cFlags;
+ FX_DWORD dwTemp;
+ const FX_BYTE fileID[] = {0x97, 0x4A, 0x42, 0x32, 0x0D, 0x0A, 0x1A, 0x0A};
+ FX_INT32 nRet;
+ if(m_pStream->getByteLeft() < 8) {
+ m_pModule->JBig2_Error("file header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ if(JBIG2_memcmp(m_pStream->getPointer(), fileID, 8) != 0) {
+ m_pModule->JBig2_Error("not jbig2 file");
+ nRet = JBIG2_ERROR_FILE_FORMAT;
+ goto failed;
+ }
+ m_pStream->offset(8);
+ if(m_pStream->read1Byte(&cFlags) != 0) {
+ m_pModule->JBig2_Error("file header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ if(!(cFlags & 0x02)) {
+ if(m_pStream->readInteger(&dwTemp) != 0) {
+ m_pModule->JBig2_Error("file header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ if(dwTemp > 0) {
+ delete m_pPageInfoList;
+ JBIG2_ALLOC(m_pPageInfoList, CJBig2_List<JBig2PageInfo>(dwTemp));
+ }
+ }
+ if(cFlags & 0x01) {
+ m_nStreamType = JBIG2_SQUENTIAL_STREAM;
+ return decode_SquentialOrgnazation(pPause);
+ } else {
+ m_nStreamType = JBIG2_RANDOM_STREAM;
+ return decode_RandomOrgnazation_FirstPage(pPause);
+ }
+failed:
+ return nRet;
+}
+FX_INT32 CJBig2_Context::decode_SquentialOrgnazation(IFX_Pause* pPause)
+{
+ FX_INT32 nRet;
+ if(m_pStream->getByteLeft() > 0) {
+ while(m_pStream->getByteLeft() >= JBIG2_MIN_SEGMENT_SIZE) {
+ if(m_pSegment == NULL) {
+ JBIG2_ALLOC(m_pSegment, CJBig2_Segment());
+ nRet = parseSegmentHeader(m_pSegment);
+ if(nRet != JBIG2_SUCCESS) {
+ delete m_pSegment;
+ m_pSegment = NULL;
+ return nRet;
+ }
+ m_dwOffset = m_pStream->getOffset();
+ }
+ nRet = parseSegmentData(m_pSegment, pPause);
+ if(m_ProcessiveStatus == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
+ m_PauseStep = 2;
+ return JBIG2_SUCCESS;
+ }
+ if((nRet == JBIG2_END_OF_PAGE) || (nRet == JBIG2_END_OF_FILE)) {
+ delete m_pSegment;
+ m_pSegment = NULL;
+ break;
+ } else if(nRet != JBIG2_SUCCESS) {
+ delete m_pSegment;
+ m_pSegment = NULL;
+ return nRet;
+ }
+ m_pSegmentList->addItem(m_pSegment);
+ if(m_pSegment->m_dwData_length != 0xffffffff) {
+ m_dwOffset = m_dwOffset + m_pSegment->m_dwData_length;
+ m_pStream->setOffset(m_dwOffset);
+ } else {
+ m_pStream->offset(4);
+ }
+ OutputBitmap(m_pPage);
+ m_pSegment = NULL;
+ if(m_pStream->getByteLeft() > 0 && m_pPage && pPause && pPause->NeedToPauseNow()) {
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
+ m_PauseStep = 2;
+ return JBIG2_SUCCESS;
+ }
+ }
+ } else {
+ return JBIG2_END_OF_FILE;
+ }
+ return JBIG2_SUCCESS;
+}
+FX_INT32 CJBig2_Context::decode_EmbedOrgnazation(IFX_Pause* pPause)
+{
+ return decode_SquentialOrgnazation(pPause);
+}
+FX_INT32 CJBig2_Context::decode_RandomOrgnazation_FirstPage(IFX_Pause* pPause)
+{
+ CJBig2_Segment *pSegment;
+ FX_INT32 nRet;
+ while(m_pStream->getByteLeft() > JBIG2_MIN_SEGMENT_SIZE) {
+ JBIG2_ALLOC(pSegment, CJBig2_Segment());
+ nRet = parseSegmentHeader(pSegment);
+ if(nRet != JBIG2_SUCCESS) {
+ delete pSegment;
+ return nRet;
+ } else if(pSegment->m_cFlags.s.type == 51) {
+ delete pSegment;
+ break;
+ }
+ m_pSegmentList->addItem(pSegment);
+ if(pPause && m_pPause && pPause->NeedToPauseNow()) {
+ m_PauseStep = 3;
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
+ return JBIG2_SUCCESS;
+ }
+ }
+ m_nSegmentDecoded = 0;
+ return decode_RandomOrgnazation(pPause);
+}
+FX_INT32 CJBig2_Context::decode_RandomOrgnazation(IFX_Pause* pPause)
+{
+ FX_INT32 nRet;
+ for(; m_nSegmentDecoded < m_pSegmentList->getLength(); m_nSegmentDecoded++) {
+ nRet = parseSegmentData(m_pSegmentList->getAt(m_nSegmentDecoded), pPause);
+ if((nRet == JBIG2_END_OF_PAGE) || (nRet == JBIG2_END_OF_FILE)) {
+ break;
+ } else if(nRet != JBIG2_SUCCESS) {
+ return nRet;
+ }
+ if(m_pPage && pPause && pPause->NeedToPauseNow()) {
+ m_PauseStep = 4;
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
+ return JBIG2_SUCCESS;
+ }
+ }
+ return JBIG2_SUCCESS;
+}
+FX_INT32 CJBig2_Context::getFirstPage(FX_BYTE *pBuf, FX_INT32 width, FX_INT32 height, FX_INT32 stride, IFX_Pause* pPause)
+{
+ FX_INT32 nRet = 0;
+ if(m_pGlobalContext) {
+ nRet = m_pGlobalContext->decode_EmbedOrgnazation(pPause);
+ if(nRet != JBIG2_SUCCESS) {
+ m_ProcessiveStatus = FXCODEC_STATUS_ERROR;
+ return nRet;
+ }
+ }
+ m_bFirstPage = TRUE;
+ m_PauseStep = 0;
+ if(m_pPage) {
+ delete m_pPage;
+ }
+ JBIG2_ALLOC(m_pPage, CJBig2_Image(width, height, stride, pBuf));
+ m_bBufSpecified = TRUE;
+ if(m_pPage && pPause && pPause->NeedToPauseNow()) {
+ m_PauseStep = 1;
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
+ return nRet;
+ }
+ int ret = Continue(pPause);
+ return ret;
+}
+FX_INT32 CJBig2_Context::Continue(IFX_Pause* pPause)
+{
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_READY;
+ FX_INT32 nRet;
+ if(m_PauseStep <= 1) {
+ switch(m_nStreamType) {
+ case JBIG2_FILE_STREAM:
+ nRet = decodeFile(pPause);
+ break;
+ case JBIG2_SQUENTIAL_STREAM:
+ nRet = decode_SquentialOrgnazation(pPause);
+ break;
+ case JBIG2_RANDOM_STREAM:
+ if(m_bFirstPage) {
+ nRet = decode_RandomOrgnazation_FirstPage(pPause);
+ } else {
+ nRet = decode_RandomOrgnazation(pPause);
+ }
+ break;
+ case JBIG2_EMBED_STREAM:
+ nRet = decode_EmbedOrgnazation(pPause);
+ break;
+ default:
+ m_ProcessiveStatus = FXCODEC_STATUS_ERROR;
+ return JBIG2_ERROR_STREAM_TYPE;
+ }
+ } else if(m_PauseStep == 2) {
+ nRet = decode_SquentialOrgnazation(pPause);
+ } else if(m_PauseStep == 3) {
+ nRet = decode_RandomOrgnazation_FirstPage(pPause);
+ } else if(m_PauseStep == 4) {
+ nRet = decode_RandomOrgnazation(pPause);
+ } else if(m_PauseStep == 5) {
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_FINISH;
+ return JBIG2_SUCCESS;
+ }
+ if(m_ProcessiveStatus == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
+ return nRet;
+ }
+ m_PauseStep = 5;
+ if(!m_bBufSpecified && nRet == JBIG2_SUCCESS) {
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_FINISH;
+ return JBIG2_SUCCESS;
+ }
+ if(nRet == JBIG2_SUCCESS) {
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_FINISH;
+ } else {
+ m_ProcessiveStatus = FXCODEC_STATUS_ERROR;
+ }
+ return nRet;
+}
+FX_INT32 CJBig2_Context::getNextPage(FX_BYTE *pBuf, FX_INT32 width, FX_INT32 height, FX_INT32 stride, IFX_Pause* pPause)
+{
+ FX_INT32 nRet = JBIG2_ERROR_STREAM_TYPE;
+ m_bFirstPage = FALSE;
+ m_PauseStep = 0;
+ if(m_pPage) {
+ delete m_pPage;
+ }
+ JBIG2_ALLOC(m_pPage, CJBig2_Image(width, height, stride, pBuf));
+ m_bBufSpecified = TRUE;
+ if(m_pPage && pPause && pPause->NeedToPauseNow()) {
+ m_PauseStep = 1;
+ m_ProcessiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
+ return nRet;
+ }
+ return Continue(pPause);
+ switch(m_nStreamType) {
+ case JBIG2_FILE_STREAM:
+ nRet = decodeFile(pPause);
+ break;
+ case JBIG2_SQUENTIAL_STREAM:
+ nRet = decode_SquentialOrgnazation(pPause);
+ break;
+ case JBIG2_RANDOM_STREAM:
+ nRet = decode_RandomOrgnazation(pPause);
+ break;
+ case JBIG2_EMBED_STREAM:
+ nRet = decode_EmbedOrgnazation(pPause);
+ break;
+ default:
+ return JBIG2_ERROR_STREAM_TYPE;
+ }
+ return nRet;
+}
+FX_INT32 CJBig2_Context::getFirstPage(CJBig2_Image **image, IFX_Pause* pPause)
+{
+ FX_INT32 nRet;
+ m_bFirstPage = TRUE;
+ m_PauseStep = 0;
+ if(m_pGlobalContext) {
+ nRet = m_pGlobalContext->decode_EmbedOrgnazation(pPause);
+ if(nRet != JBIG2_SUCCESS) {
+ return nRet;
+ }
+ }
+ m_bBufSpecified = FALSE;
+ return Continue(pPause);
+}
+FX_INT32 CJBig2_Context::getNextPage(CJBig2_Image **image, IFX_Pause* pPause)
+{
+ FX_INT32 nRet;
+ m_bBufSpecified = FALSE;
+ m_bFirstPage = FALSE;
+ m_PauseStep = 0;
+ switch(m_nStreamType) {
+ case JBIG2_FILE_STREAM:
+ nRet = decodeFile(pPause);
+ break;
+ case JBIG2_SQUENTIAL_STREAM:
+ nRet = decode_SquentialOrgnazation(pPause);
+ break;
+ case JBIG2_RANDOM_STREAM:
+ nRet = decode_RandomOrgnazation(pPause);
+ break;
+ case JBIG2_EMBED_STREAM:
+ nRet = decode_EmbedOrgnazation(pPause);
+ break;
+ default:
+ return JBIG2_ERROR_STREAM_TYPE;
+ }
+ if(nRet == JBIG2_SUCCESS) {
+ *image = m_pPage;
+ m_pPage = NULL;
+ return JBIG2_SUCCESS;
+ }
+ return nRet;
+}
+CJBig2_Segment *CJBig2_Context::findSegmentByNumber(FX_DWORD dwNumber)
+{
+ CJBig2_Segment *pSeg;
+ FX_INT32 i;
+ if(m_pGlobalContext) {
+ pSeg = m_pGlobalContext->findSegmentByNumber(dwNumber);
+ if(pSeg) {
+ return pSeg;
+ }
+ }
+ for(i = 0; i < m_pSegmentList->getLength(); i++) {
+ pSeg = m_pSegmentList->getAt(i);
+ if(pSeg->m_dwNumber == dwNumber) {
+ return pSeg;
+ }
+ }
+ return NULL;
+}
+CJBig2_Segment *CJBig2_Context::findReferredSegmentByTypeAndIndex(CJBig2_Segment *pSegment,
+ FX_BYTE cType, FX_INT32 nIndex)
+{
+ CJBig2_Segment *pSeg;
+ FX_INT32 i, count;
+ count = 0;
+ for(i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
+ pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
+ if(pSeg && pSeg->m_cFlags.s.type == cType) {
+ if(count == nIndex) {
+ return pSeg;
+ } else {
+ count ++;
+ }
+ }
+ }
+ return NULL;
+}
+FX_INT32 CJBig2_Context::parseSegmentHeader(CJBig2_Segment *pSegment)
+{
+ FX_BYTE cSSize, cPSize;
+ FX_BYTE cTemp;
+ FX_WORD wTemp;
+ FX_DWORD dwTemp;
+ if((m_pStream->readInteger(&pSegment->m_dwNumber) != 0)
+ || (m_pStream->read1Byte(&pSegment->m_cFlags.c) != 0)) {
+ goto failed;
+ }
+ cTemp = m_pStream->getCurByte();
+ if((cTemp >> 5) == 7) {
+ if(m_pStream->readInteger((FX_DWORD*)&pSegment->m_nReferred_to_segment_count) != 0) {
+ goto failed;
+ }
+ pSegment->m_nReferred_to_segment_count &= 0x1fffffff;
+ if (pSegment->m_nReferred_to_segment_count > JBIG2_MAX_REFERRED_SEGMENT_COUNT) {
+ m_pModule->JBig2_Error("Too many referred segments.");
+ return JBIG2_ERROR_LIMIT;
+ }
+ dwTemp = 5 + 4 + (pSegment->m_nReferred_to_segment_count + 1) / 8;
+ } else {
+ if(m_pStream->read1Byte(&cTemp) != 0) {
+ goto failed;
+ }
+ pSegment->m_nReferred_to_segment_count = cTemp >> 5;
+ dwTemp = 5 + 1;
+ }
+ cSSize = pSegment->m_dwNumber > 65536 ? 4 : pSegment->m_dwNumber > 256 ? 2 : 1;
+ cPSize = pSegment->m_cFlags.s.page_association_size ? 4 : 1;
+ if(pSegment->m_nReferred_to_segment_count) {
+ pSegment->m_pReferred_to_segment_numbers = (FX_DWORD*)m_pModule->JBig2_Malloc2(
+ sizeof(FX_DWORD), pSegment->m_nReferred_to_segment_count);
+ for(FX_INT32 i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
+ switch(cSSize) {
+ case 1:
+ if(m_pStream->read1Byte(&cTemp) != 0) {
+ goto failed;
+ }
+ pSegment->m_pReferred_to_segment_numbers[i] = cTemp;
+ break;
+ case 2:
+ if(m_pStream->readShortInteger(&wTemp) != 0) {
+ goto failed;
+ }
+ pSegment->m_pReferred_to_segment_numbers[i] = wTemp;
+ break;
+ case 4:
+ if(m_pStream->readInteger(&dwTemp) != 0) {
+ goto failed;
+ }
+ pSegment->m_pReferred_to_segment_numbers[i] = dwTemp;
+ break;
+ }
+ if (pSegment->m_pReferred_to_segment_numbers[i] >= pSegment->m_dwNumber) {
+ m_pModule->JBig2_Error("The referred segment number is greater than this segment number.");
+ goto failed;
+ }
+ }
+ }
+ if(cPSize == 1) {
+ if(m_pStream->read1Byte(&cTemp) != 0) {
+ goto failed;
+ }
+ pSegment->m_dwPage_association = cTemp;
+ } else {
+ if(m_pStream->readInteger(&pSegment->m_dwPage_association) != 0) {
+ goto failed;
+ }
+ }
+ if(m_pStream->readInteger(&pSegment->m_dwData_length) != 0) {
+ goto failed;
+ }
+ pSegment->m_pData = m_pStream->getPointer();
+ pSegment->m_State = JBIG2_SEGMENT_DATA_UNPARSED;
+ return JBIG2_SUCCESS;
+failed:
+ m_pModule->JBig2_Error("header too short.");
+ return JBIG2_ERROR_TOO_SHORT;
+}
+FX_INT32 CJBig2_Context::parseSegmentData(CJBig2_Segment *pSegment, IFX_Pause* pPause)
+{
+ FX_INT32 ret = ProcessiveParseSegmentData(pSegment, pPause);
+ while(m_ProcessiveStatus == FXCODEC_STATUS_DECODE_TOBECONTINUE && m_pStream->getByteLeft() > 0) {
+ ret = ProcessiveParseSegmentData(pSegment, pPause);
+ }
+ return ret;
+}
+FX_INT32 CJBig2_Context::ProcessiveParseSegmentData(CJBig2_Segment *pSegment, IFX_Pause* pPause)
+{
+ switch(pSegment->m_cFlags.s.type) {
+ case 0:
+ return parseSymbolDict(pSegment, pPause);
+ case 4:
+ case 6:
+ case 7:
+ if(m_nState == JBIG2_OUT_OF_PAGE) {
+ goto failed2;
+ } else {
+ return parseTextRegion(pSegment);
+ }
+ case 16:
+ return parsePatternDict(pSegment, pPause);
+ case 20:
+ case 22:
+ case 23:
+ if(m_nState == JBIG2_OUT_OF_PAGE) {
+ goto failed2;
+ } else {
+ return parseHalftoneRegion(pSegment, pPause);
+ }
+ case 36:
+ case 38:
+ case 39:
+ if(m_nState == JBIG2_OUT_OF_PAGE) {
+ goto failed2;
+ } else {
+ return parseGenericRegion(pSegment, pPause);
+ }
+ case 40:
+ case 42:
+ case 43:
+ if(m_nState == JBIG2_OUT_OF_PAGE) {
+ goto failed2;
+ } else {
+ return parseGenericRefinementRegion(pSegment);
+ }
+ case 48: {
+ FX_WORD wTemp;
+ JBig2PageInfo *pPageInfo;
+ JBIG2_ALLOC(pPageInfo, 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)) {
+ delete pPageInfo;
+ goto failed1;
+ }
+ pPageInfo->m_bIsStriped = ((wTemp >> 15) & 1) ? 1 : 0;
+ pPageInfo->m_wMaxStripeSize = wTemp & 0x7fff;
+ if((pPageInfo->m_dwHeight == 0xffffffff) && (pPageInfo->m_bIsStriped != 1)) {
+ m_pModule->JBig2_Warn("page height = 0xffffffff buf stripe field is 0");
+ pPageInfo->m_bIsStriped = 1;
+ }
+ if(!m_bBufSpecified) {
+ if(m_pPage) {
+ delete m_pPage;
+ }
+ if(pPageInfo->m_dwHeight == 0xffffffff) {
+ JBIG2_ALLOC(m_pPage, CJBig2_Image(pPageInfo->m_dwWidth, pPageInfo->m_wMaxStripeSize));
+ } else {
+ JBIG2_ALLOC(m_pPage, CJBig2_Image(pPageInfo->m_dwWidth, pPageInfo->m_dwHeight));
+ }
+ }
+ m_pPage->fill((pPageInfo->m_cFlags & 4) ? 1 : 0);
+ m_pPageInfoList->addItem(pPageInfo);
+ m_nState = JBIG2_IN_PAGE;
+ }
+ break;
+ case 49:
+ m_nState = JBIG2_OUT_OF_PAGE;
+ return JBIG2_END_OF_PAGE;
+ break;
+ case 50:
+ m_pStream->offset(pSegment->m_dwData_length);
+ break;
+ case 51:
+ return JBIG2_END_OF_FILE;
+ case 52:
+ m_pStream->offset(pSegment->m_dwData_length);
+ break;
+ case 53:
+ return parseTable(pSegment);
+ case 62:
+ m_pStream->offset(pSegment->m_dwData_length);
+ break;
+ default:
+ break;
+ }
+ return JBIG2_SUCCESS;
+failed1:
+ m_pModule->JBig2_Error("segment data too short.");
+ return JBIG2_ERROR_TOO_SHORT;
+failed2:
+ m_pModule->JBig2_Error("segment syntax error.");
+ return JBIG2_ERROR_FETAL;
+}
+FX_INT32 CJBig2_Context::parseSymbolDict(CJBig2_Segment *pSegment, IFX_Pause* pPause)
+{
+ FX_DWORD dwTemp;
+ FX_WORD wFlags;
+ FX_BYTE cSDHUFFDH, cSDHUFFDW, cSDHUFFBMSIZE, cSDHUFFAGGINST;
+ CJBig2_HuffmanTable *Table_B1 = NULL, *Table_B2 = NULL, *Table_B3 = NULL, *Table_B4 = NULL, *Table_B5 = NULL;
+ FX_INT32 i, nIndex, nRet;
+ CJBig2_Segment *pSeg = NULL, *pLRSeg = NULL;
+ FX_BOOL bUsed;
+ CJBig2_Image ** SDINSYMS = NULL;
+ CJBig2_SDDProc *pSymbolDictDecoder;
+ JBig2ArithCtx *gbContext = NULL, *grContext = NULL;
+ CJBig2_ArithDecoder *pArithDecoder;
+ JBIG2_ALLOC(pSymbolDictDecoder, CJBig2_SDDProc());
+ if(m_pStream->readShortInteger(&wFlags) != 0) {
+ m_pModule->JBig2_Error("symbol dictionary segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ 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;
+ if(pSymbolDictDecoder->SDHUFF == 0) {
+ if(pSymbolDictDecoder->SDTEMPLATE == 0) {
+ dwTemp = 8;
+ } else {
+ dwTemp = 2;
+ }
+ for(i = 0; i < (FX_INT32)dwTemp; i++) {
+ if(m_pStream->read1Byte((FX_BYTE*)&pSymbolDictDecoder->SDAT[i]) != 0) {
+ m_pModule->JBig2_Error("symbol dictionary segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ }
+ }
+ if((pSymbolDictDecoder->SDREFAGG == 1) && (pSymbolDictDecoder->SDRTEMPLATE == 0)) {
+ for(i = 0; i < 4; i++) {
+ if(m_pStream->read1Byte((FX_BYTE*)&pSymbolDictDecoder->SDRAT[i]) != 0) {
+ m_pModule->JBig2_Error("symbol dictionary segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ }
+ }
+ if((m_pStream->readInteger(&pSymbolDictDecoder->SDNUMEXSYMS) != 0)
+ || (m_pStream->readInteger(&pSymbolDictDecoder->SDNUMNEWSYMS) != 0)) {
+ m_pModule->JBig2_Error("symbol dictionary segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ if (pSymbolDictDecoder->SDNUMEXSYMS > JBIG2_MAX_EXPORT_SYSMBOLS
+ || pSymbolDictDecoder->SDNUMNEWSYMS > JBIG2_MAX_NEW_SYSMBOLS) {
+ m_pModule->JBig2_Error("symbol dictionary segment : too many export/new symbols.");
+ nRet = JBIG2_ERROR_LIMIT;
+ goto failed;
+ }
+ for(i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
+ if(!findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i])) {
+ m_pModule->JBig2_Error("symbol dictionary segment : can't find refered to segments");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ }
+ pSymbolDictDecoder->SDNUMINSYMS = 0;
+ for(i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
+ 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 = (CJBig2_Image**)m_pModule->JBig2_Malloc2(
+ sizeof(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]);
+ if(pSeg->m_cFlags.s.type == 0) {
+ JBIG2_memcpy(SDINSYMS + dwTemp, pSeg->m_Result.sd->SDEXSYMS,
+ pSeg->m_Result.sd->SDNUMEXSYMS * sizeof(CJBig2_Image*));
+ dwTemp += pSeg->m_Result.sd->SDNUMEXSYMS;
+ }
+ }
+ }
+ pSymbolDictDecoder->SDINSYMS = SDINSYMS;
+ if(pSymbolDictDecoder->SDHUFF == 1) {
+ if((cSDHUFFDH == 2) || (cSDHUFFDW == 2)) {
+ m_pModule->JBig2_Error("symbol dictionary segment : SDHUFFDH=2 or SDHUFFDW=2 is not permitted.");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ nIndex = 0;
+ if(cSDHUFFDH == 0) {
+ JBIG2_ALLOC(Table_B4, CJBig2_HuffmanTable(HuffmanTable_B4,
+ sizeof(HuffmanTable_B4) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B4));
+ pSymbolDictDecoder->SDHUFFDH = Table_B4;
+ } else if(cSDHUFFDH == 1) {
+ JBIG2_ALLOC(Table_B5, CJBig2_HuffmanTable(HuffmanTable_B5,
+ sizeof(HuffmanTable_B5) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B5));
+ pSymbolDictDecoder->SDHUFFDH = Table_B5;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("symbol dictionary segment : SDHUFFDH can't find user supplied table.");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pSymbolDictDecoder->SDHUFFDH = pSeg->m_Result.ht;
+ }
+ if(cSDHUFFDW == 0) {
+ JBIG2_ALLOC(Table_B2, CJBig2_HuffmanTable(HuffmanTable_B2,
+ sizeof(HuffmanTable_B2) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B2));
+ pSymbolDictDecoder->SDHUFFDW = Table_B2;
+ } else if(cSDHUFFDW == 1) {
+ JBIG2_ALLOC(Table_B3, CJBig2_HuffmanTable(HuffmanTable_B3,
+ sizeof(HuffmanTable_B3) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B3));
+ pSymbolDictDecoder->SDHUFFDW = Table_B3;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("symbol dictionary segment : SDHUFFDW can't find user supplied table.");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pSymbolDictDecoder->SDHUFFDW = pSeg->m_Result.ht;
+ }
+ if(cSDHUFFBMSIZE == 0) {
+ JBIG2_ALLOC(Table_B1, CJBig2_HuffmanTable(HuffmanTable_B1,
+ sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1));
+ pSymbolDictDecoder->SDHUFFBMSIZE = Table_B1;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("symbol dictionary segment : SDHUFFBMSIZE can't find user supplied table.");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pSymbolDictDecoder->SDHUFFBMSIZE = pSeg->m_Result.ht;
+ }
+ if(pSymbolDictDecoder->SDREFAGG == 1) {
+ if(cSDHUFFAGGINST == 0) {
+ if(!Table_B1) {
+ JBIG2_ALLOC(Table_B1, CJBig2_HuffmanTable(HuffmanTable_B1,
+ sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1));
+ }
+ pSymbolDictDecoder->SDHUFFAGGINST = Table_B1;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("symbol dictionary segment : SDHUFFAGGINST can't find user supplied table.");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pSymbolDictDecoder->SDHUFFAGGINST = pSeg->m_Result.ht;
+ }
+ }
+ }
+ 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 = (JBig2ArithCtx*)m_pModule->JBig2_Malloc2(sizeof(JBig2ArithCtx), dwTemp);
+ JBIG2_memcpy(gbContext, pLRSeg->m_Result.sd->m_gbContext, sizeof(JBig2ArithCtx)*dwTemp);
+ }
+ if (pSymbolDictDecoder->SDREFAGG == 1) {
+ dwTemp = pSymbolDictDecoder->SDRTEMPLATE ? 1 << 10 : 1 << 13;
+ grContext = (JBig2ArithCtx*)m_pModule->JBig2_Malloc2(sizeof(JBig2ArithCtx), dwTemp);
+ JBIG2_memcpy(grContext, pLRSeg->m_Result.sd->m_grContext, sizeof(JBig2ArithCtx)*dwTemp);
+ }
+ } else {
+ if (pSymbolDictDecoder->SDHUFF == 0) {
+ dwTemp = pSymbolDictDecoder->SDTEMPLATE == 0 ? 65536 : pSymbolDictDecoder->SDTEMPLATE == 1 ?
+ 8192 : 1024;
+ gbContext = (JBig2ArithCtx*)m_pModule->JBig2_Malloc2(sizeof(JBig2ArithCtx), dwTemp);
+ JBIG2_memset(gbContext, 0, sizeof(JBig2ArithCtx)*dwTemp);
+ }
+ if (pSymbolDictDecoder->SDREFAGG == 1) {
+ dwTemp = pSymbolDictDecoder->SDRTEMPLATE ? 1 << 10 : 1 << 13;
+ grContext = (JBig2ArithCtx*)m_pModule->JBig2_Malloc2(sizeof(JBig2ArithCtx), dwTemp);
+ JBIG2_memset(grContext, 0, sizeof(JBig2ArithCtx)*dwTemp);
+ }
+ }
+ pSegment->m_nResultType = JBIG2_SYMBOL_DICT_POINTER;
+ if(pSymbolDictDecoder->SDHUFF == 0) {
+ JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(m_pStream));
+ pSegment->m_Result.sd = pSymbolDictDecoder->decode_Arith(pArithDecoder, gbContext, grContext);
+ delete pArithDecoder;
+ if(pSegment->m_Result.sd == NULL) {
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pStream->alignByte();
+ m_pStream->offset(2);
+ } else {
+ pSegment->m_Result.sd = pSymbolDictDecoder->decode_Huffman(m_pStream, gbContext, grContext, pPause);
+ if(pSegment->m_Result.sd == NULL) {
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pStream->alignByte();
+ }
+ if(wFlags & 0x0200) {
+ pSegment->m_Result.sd->m_bContextRetained = TRUE;
+ if(pSymbolDictDecoder->SDHUFF == 0) {
+ pSegment->m_Result.sd->m_gbContext = gbContext;
+ }
+ if(pSymbolDictDecoder->SDREFAGG == 1) {
+ pSegment->m_Result.sd->m_grContext = grContext;
+ }
+ bUsed = TRUE;
+ } else {
+ bUsed = FALSE;
+ }
+ delete pSymbolDictDecoder;
+ if(SDINSYMS) {
+ m_pModule->JBig2_Free(SDINSYMS);
+ }
+ if(Table_B1) {
+ delete Table_B1;
+ }
+ if(Table_B2) {
+ delete Table_B2;
+ }
+ if(Table_B3) {
+ delete Table_B3;
+ }
+ if(Table_B4) {
+ delete Table_B4;
+ }
+ if(Table_B5) {
+ delete Table_B5;
+ }
+ if(bUsed == FALSE) {
+ if(gbContext) {
+ m_pModule->JBig2_Free(gbContext);
+ }
+ if(grContext) {
+ m_pModule->JBig2_Free(grContext);
+ }
+ }
+ return JBIG2_SUCCESS;
+failed:
+ delete pSymbolDictDecoder;
+ if(SDINSYMS) {
+ m_pModule->JBig2_Free(SDINSYMS);
+ }
+ if(Table_B1) {
+ delete Table_B1;
+ }
+ if(Table_B2) {
+ delete Table_B2;
+ }
+ if(Table_B3) {
+ delete Table_B3;
+ }
+ if(Table_B4) {
+ delete Table_B4;
+ }
+ if(Table_B5) {
+ delete Table_B5;
+ }
+ if(gbContext) {
+ m_pModule->JBig2_Free(gbContext);
+ }
+ if(grContext) {
+ m_pModule->JBig2_Free(grContext);
+ }
+ return nRet;
+}
+
+FX_BOOL CJBig2_Context::parseTextRegion(CJBig2_Segment *pSegment)
+{
+ FX_DWORD dwTemp;
+ FX_WORD wFlags;
+ FX_INT32 i, nIndex, nRet;
+ JBig2RegionInfo ri;
+ CJBig2_Segment *pSeg;
+ CJBig2_Image **SBSYMS = NULL;
+ JBig2HuffmanCode *SBSYMCODES = NULL;
+ FX_BYTE 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_ArithDecoder *pArithDecoder;
+ CJBig2_TRDProc *pTRD;
+ JBIG2_ALLOC(pTRD, CJBig2_TRDProc());
+ if((parseRegionInfo(&ri) != JBIG2_SUCCESS)
+ || (m_pStream->readShortInteger(&wFlags) != 0)) {
+ m_pModule->JBig2_Error("text region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ pTRD->SBW = ri.width;
+ pTRD->SBH = ri.height;
+ pTRD->SBHUFF = wFlags & 0x0001;
+ pTRD->SBREFINE = (wFlags >> 1) & 0x0001;
+ dwTemp = (wFlags >> 2) & 0x0003;
+ pTRD->SBSTRIPS = 1 << dwTemp;
+ pTRD->REFCORNER = (JBig2Corner)((wFlags >> 4) & 0x0003);
+ pTRD->TRANSPOSED = (wFlags >> 6) & 0x0001;
+ pTRD->SBCOMBOP = (JBig2ComposeOp)((wFlags >> 7) & 0x0003);
+ pTRD->SBDEFPIXEL = (wFlags >> 9) & 0x0001;
+ pTRD->SBDSOFFSET = (wFlags >> 10) & 0x001f;
+ if(pTRD->SBDSOFFSET >= 0x0010) {
+ pTRD->SBDSOFFSET = pTRD->SBDSOFFSET - 0x0020;
+ }
+ pTRD->SBRTEMPLATE = (wFlags >> 15) & 0x0001;
+ if(pTRD->SBHUFF == 1) {
+ if(m_pStream->readShortInteger(&wFlags) != 0) {
+ m_pModule->JBig2_Error("text region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ cSBHUFFFS = wFlags & 0x0003;
+ cSBHUFFDS = (wFlags >> 2) & 0x0003;
+ cSBHUFFDT = (wFlags >> 4) & 0x0003;
+ cSBHUFFRDW = (wFlags >> 6) & 0x0003;
+ cSBHUFFRDH = (wFlags >> 8) & 0x0003;
+ cSBHUFFRDX = (wFlags >> 10) & 0x0003;
+ 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((FX_BYTE*)&pTRD->SBRAT[i]) != 0) {
+ m_pModule->JBig2_Error("text region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ }
+ }
+ if(m_pStream->readInteger(&pTRD->SBNUMINSTANCES) != 0) {
+ m_pModule->JBig2_Error("text region segment : data header too short.");
+ 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])) {
+ m_pModule->JBig2_Error("text region segment : can't find refered to segments");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ }
+ pTRD->SBNUMSYMS = 0;
+ for(i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
+ pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[i]);
+ if(pSeg->m_cFlags.s.type == 0) {
+ pTRD->SBNUMSYMS += pSeg->m_Result.sd->SDNUMEXSYMS;
+ }
+ }
+ if (pTRD->SBNUMSYMS > 0) {
+ SBSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2(
+ sizeof(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]);
+ if(pSeg->m_cFlags.s.type == 0) {
+ JBIG2_memcpy(SBSYMS + dwTemp, pSeg->m_Result.sd->SDEXSYMS,
+ pSeg->m_Result.sd->SDNUMEXSYMS * sizeof(CJBig2_Image*));
+ dwTemp += pSeg->m_Result.sd->SDNUMEXSYMS;
+ }
+ }
+ pTRD->SBSYMS = SBSYMS;
+ } else {
+ pTRD->SBSYMS = NULL;
+ }
+ if(pTRD->SBHUFF == 1) {
+ SBSYMCODES = decodeSymbolIDHuffmanTable(m_pStream, pTRD->SBNUMSYMS);
+ if(SBSYMCODES == NULL) {
+ m_pModule->JBig2_Error("text region segment: symbol ID huffman table decode failure!");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pStream->alignByte();
+ pTRD->SBSYMCODES = SBSYMCODES;
+ } else {
+ dwTemp = 0;
+ while((FX_DWORD)(1 << dwTemp) < pTRD->SBNUMSYMS) {
+ dwTemp ++;
+ }
+ pTRD->SBSYMCODELEN = (FX_BYTE)dwTemp;
+ }
+ if(pTRD->SBHUFF == 1) {
+ if((cSBHUFFFS == 2) || (cSBHUFFRDW == 2) || (cSBHUFFRDH == 2)
+ || (cSBHUFFRDX == 2) || (cSBHUFFRDY == 2)) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFFS=2 or SBHUFFRDW=2 or "
+ "SBHUFFRDH=2 or SBHUFFRDX=2 or SBHUFFRDY=2 is not permitted");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ nIndex = 0;
+ if(cSBHUFFFS == 0) {
+ JBIG2_ALLOC(Table_B6, CJBig2_HuffmanTable(HuffmanTable_B6,
+ sizeof(HuffmanTable_B6) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B6));
+ pTRD->SBHUFFFS = Table_B6;
+ } else if(cSBHUFFFS == 1) {
+ JBIG2_ALLOC(Table_B7, CJBig2_HuffmanTable(HuffmanTable_B7,
+ sizeof(HuffmanTable_B7) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B7));
+ pTRD->SBHUFFFS = Table_B7;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFFS can't find user supplied table");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pTRD->SBHUFFFS = pSeg->m_Result.ht;
+ }
+ if(cSBHUFFDS == 0) {
+ JBIG2_ALLOC(Table_B8, CJBig2_HuffmanTable(HuffmanTable_B8,
+ sizeof(HuffmanTable_B8) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B8));
+ pTRD->SBHUFFDS = Table_B8;
+ } else if(cSBHUFFDS == 1) {
+ JBIG2_ALLOC(Table_B9, CJBig2_HuffmanTable(HuffmanTable_B9,
+ sizeof(HuffmanTable_B9) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B9));
+ pTRD->SBHUFFDS = Table_B9;
+ } else if(cSBHUFFDS == 2) {
+ JBIG2_ALLOC(Table_B10, CJBig2_HuffmanTable(HuffmanTable_B10,
+ sizeof(HuffmanTable_B10) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B10));
+ pTRD->SBHUFFDS = Table_B10;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFDS can't find user supplied table");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pTRD->SBHUFFDS = pSeg->m_Result.ht;
+ }
+ if(cSBHUFFDT == 0) {
+ JBIG2_ALLOC(Table_B11, CJBig2_HuffmanTable(HuffmanTable_B11,
+ sizeof(HuffmanTable_B11) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B11));
+ pTRD->SBHUFFDT = Table_B11;
+ } else if(cSBHUFFDT == 1) {
+ JBIG2_ALLOC(Table_B12, CJBig2_HuffmanTable(HuffmanTable_B12,
+ sizeof(HuffmanTable_B12) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B12));
+ pTRD->SBHUFFDT = Table_B12;
+ } else if(cSBHUFFDT == 2) {
+ JBIG2_ALLOC(Table_B13, CJBig2_HuffmanTable(HuffmanTable_B13,
+ sizeof(HuffmanTable_B13) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B13));
+ pTRD->SBHUFFDT = Table_B13;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFDT can't find user supplied table");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pTRD->SBHUFFDT = pSeg->m_Result.ht;
+ }
+ if(cSBHUFFRDW == 0) {
+ JBIG2_ALLOC(Table_B14, CJBig2_HuffmanTable(HuffmanTable_B14,
+ sizeof(HuffmanTable_B14) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B14));
+ pTRD->SBHUFFRDW = Table_B14;
+ } else if(cSBHUFFRDW == 1) {
+ JBIG2_ALLOC(Table_B15, CJBig2_HuffmanTable(HuffmanTable_B15,
+ sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15));
+ pTRD->SBHUFFRDW = Table_B15;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFRDW can't find user supplied table");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pTRD->SBHUFFRDW = pSeg->m_Result.ht;
+ }
+ if(cSBHUFFRDH == 0) {
+ if(!Table_B14) {
+ JBIG2_ALLOC(Table_B14, CJBig2_HuffmanTable(HuffmanTable_B14,
+ sizeof(HuffmanTable_B14) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B14));
+ }
+ pTRD->SBHUFFRDH = Table_B14;
+ } else if(cSBHUFFRDH == 1) {
+ if(!Table_B15) {
+ JBIG2_ALLOC(Table_B15, CJBig2_HuffmanTable(HuffmanTable_B15,
+ sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15));
+ }
+ pTRD->SBHUFFRDH = Table_B15;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFRDH can't find user supplied table");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pTRD->SBHUFFRDH = pSeg->m_Result.ht;
+ }
+ if(cSBHUFFRDX == 0) {
+ if(!Table_B14) {
+ JBIG2_ALLOC(Table_B14, CJBig2_HuffmanTable(HuffmanTable_B14,
+ sizeof(HuffmanTable_B14) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B14));
+ }
+ pTRD->SBHUFFRDX = Table_B14;
+ } else if(cSBHUFFRDX == 1) {
+ if(!Table_B15) {
+ JBIG2_ALLOC(Table_B15, CJBig2_HuffmanTable(HuffmanTable_B15,
+ sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15));
+ }
+ pTRD->SBHUFFRDX = Table_B15;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFRDX can't find user supplied table");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pTRD->SBHUFFRDX = pSeg->m_Result.ht;
+ }
+ if(cSBHUFFRDY == 0) {
+ if(!Table_B14) {
+ JBIG2_ALLOC(Table_B14, CJBig2_HuffmanTable(HuffmanTable_B14,
+ sizeof(HuffmanTable_B14) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B14));
+ }
+ pTRD->SBHUFFRDY = Table_B14;
+ } else if(cSBHUFFRDY == 1) {
+ if(!Table_B15) {
+ JBIG2_ALLOC(Table_B15, CJBig2_HuffmanTable(HuffmanTable_B15,
+ sizeof(HuffmanTable_B15) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B15));
+ }
+ pTRD->SBHUFFRDY = Table_B15;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFRDY can't find user supplied table");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pTRD->SBHUFFRDY = pSeg->m_Result.ht;
+ }
+ if(cSBHUFFRSIZE == 0) {
+ JBIG2_ALLOC(Table_B1, CJBig2_HuffmanTable(HuffmanTable_B1,
+ sizeof(HuffmanTable_B1) / sizeof(JBig2TableLine), HuffmanTable_HTOOB_B1));
+ pTRD->SBHUFFRSIZE = Table_B1;
+ } else {
+ pSeg = findReferredSegmentByTypeAndIndex(pSegment, 53, nIndex++);
+ if(!pSeg) {
+ m_pModule->JBig2_Error("text region segment : SBHUFFRSIZE can't find user supplied table");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pTRD->SBHUFFRSIZE = pSeg->m_Result.ht;
+ }
+ }
+ if(pTRD->SBREFINE == 1) {
+ dwTemp = pTRD->SBRTEMPLATE ? 1 << 10 : 1 << 13;
+ grContext = (JBig2ArithCtx*)m_pModule->JBig2_Malloc2(sizeof(JBig2ArithCtx), dwTemp);
+ JBIG2_memset(grContext, 0, sizeof(JBig2ArithCtx)*dwTemp);
+ }
+ if(pTRD->SBHUFF == 0) {
+ JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(m_pStream));
+ 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_FETAL;
+ goto failed;
+ }
+ m_pStream->alignByte();
+ m_pStream->offset(2);
+ } else {
+ pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
+ pSegment->m_Result.im = pTRD->decode_Huffman(m_pStream, grContext);
+ if(pSegment->m_Result.im == NULL) {
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pStream->alignByte();
+ }
+ if(pSegment->m_cFlags.s.type != 4) {
+ if(!m_bBufSpecified) {
+ JBig2PageInfo *pPageInfo = m_pPageInfoList->getLast();
+ 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);
+ }
+ }
+ m_pPage->composeFrom(ri.x, ri.y, pSegment->m_Result.im, (JBig2ComposeOp)(ri.flags & 0x03));
+ delete pSegment->m_Result.im;
+ pSegment->m_Result.im = NULL;
+ }
+ delete pTRD;
+ if(SBSYMS) {
+ m_pModule->JBig2_Free(SBSYMS);
+ }
+ if(SBSYMCODES) {
+ m_pModule->JBig2_Free(SBSYMCODES);
+ }
+ if(grContext) {
+ m_pModule->JBig2_Free(grContext);
+ }
+ if(Table_B1) {
+ delete Table_B1;
+ }
+ if(Table_B6) {
+ delete Table_B6;
+ }
+ if(Table_B7) {
+ delete Table_B7;
+ }
+ if(Table_B8) {
+ delete Table_B8;
+ }
+ if(Table_B9) {
+ delete Table_B9;
+ }
+ if(Table_B10) {
+ delete Table_B10;
+ }
+ if(Table_B11) {
+ delete Table_B11;
+ }
+ if(Table_B12) {
+ delete Table_B12;
+ }
+ if(Table_B13) {
+ delete Table_B13;
+ }
+ if(Table_B14) {
+ delete Table_B14;
+ }
+ if(Table_B15) {
+ delete Table_B15;
+ }
+ return JBIG2_SUCCESS;
+failed:
+ delete pTRD;
+ if(SBSYMS) {
+ m_pModule->JBig2_Free(SBSYMS);
+ }
+ if(SBSYMCODES) {
+ m_pModule->JBig2_Free(SBSYMCODES);
+ }
+ if(grContext) {
+ m_pModule->JBig2_Free(grContext);
+ }
+ if(Table_B1) {
+ delete Table_B1;
+ }
+ if(Table_B6) {
+ delete Table_B6;
+ }
+ if(Table_B7) {
+ delete Table_B7;
+ }
+ if(Table_B8) {
+ delete Table_B8;
+ }
+ if(Table_B9) {
+ delete Table_B9;
+ }
+ if(Table_B10) {
+ delete Table_B10;
+ }
+ if(Table_B11) {
+ delete Table_B11;
+ }
+ if(Table_B12) {
+ delete Table_B12;
+ }
+ if(Table_B13) {
+ delete Table_B13;
+ }
+ if(Table_B14) {
+ delete Table_B14;
+ }
+ if(Table_B15) {
+ delete Table_B15;
+ }
+ return nRet;
+}
+
+FX_BOOL CJBig2_Context::parsePatternDict(CJBig2_Segment *pSegment, IFX_Pause* pPause)
+{
+ FX_DWORD dwTemp;
+ FX_BYTE cFlags;
+ JBig2ArithCtx *gbContext;
+ CJBig2_ArithDecoder *pArithDecoder;
+ CJBig2_PDDProc *pPDD;
+ FX_INT32 nRet;
+ JBIG2_ALLOC(pPDD, 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)) {
+ m_pModule->JBig2_Error("pattern dictionary segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ if (pPDD->GRAYMAX > JBIG2_MAX_PATTERN_INDEX) {
+ m_pModule->JBig2_Error("pattern dictionary segment : too max gray max.");
+ nRet = JBIG2_ERROR_LIMIT;
+ goto failed;
+ }
+ 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 = (JBig2ArithCtx*)m_pModule->JBig2_Malloc2(sizeof(JBig2ArithCtx), dwTemp);
+ JBIG2_memset(gbContext, 0, sizeof(JBig2ArithCtx)*dwTemp);
+ JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(m_pStream));
+ pSegment->m_Result.pd = pPDD->decode_Arith(pArithDecoder, gbContext, pPause);
+ delete pArithDecoder;
+ if(pSegment->m_Result.pd == NULL) {
+ m_pModule->JBig2_Free(gbContext);
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pModule->JBig2_Free(gbContext);
+ m_pStream->alignByte();
+ m_pStream->offset(2);
+ } else {
+ pSegment->m_Result.pd = pPDD->decode_MMR(m_pStream, pPause);
+ if(pSegment->m_Result.pd == NULL) {
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pStream->alignByte();
+ }
+ delete pPDD;
+ return JBIG2_SUCCESS;
+failed:
+ delete pPDD;
+ return nRet;
+}
+FX_BOOL CJBig2_Context::parseHalftoneRegion(CJBig2_Segment *pSegment, IFX_Pause* pPause)
+{
+ FX_DWORD dwTemp;
+ FX_BYTE cFlags;
+ JBig2RegionInfo ri;
+ CJBig2_Segment *pSeg;
+ CJBig2_PatternDict *pPatternDict;
+ JBig2ArithCtx *gbContext;
+ CJBig2_ArithDecoder *pArithDecoder;
+ CJBig2_HTRDProc *pHRD;
+ FX_INT32 nRet;
+ JBIG2_ALLOC(pHRD, 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)) {
+ m_pModule->JBig2_Error("halftone region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ pHRD->HBW = ri.width;
+ pHRD->HBH = ri.height;
+ pHRD->HMMR = cFlags & 0x01;
+ pHRD->HTEMPLATE = (cFlags >> 1) & 0x03;
+ pHRD->HENABLESKIP = (cFlags >> 3) & 0x01;
+ pHRD->HCOMBOP = (JBig2ComposeOp)((cFlags >> 4) & 0x07);
+ pHRD->HDEFPIXEL = (cFlags >> 7) & 0x01;
+ if(pSegment->m_nReferred_to_segment_count != 1) {
+ m_pModule->JBig2_Error("halftone region segment : refered to segment count not equals 1");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pSeg = findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[0]);
+ if( (pSeg == NULL) || (pSeg->m_cFlags.s.type != 16)) {
+ m_pModule->JBig2_Error("halftone region segment : refered to segment is not pattern dict");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pPatternDict = pSeg->m_Result.pd;
+ if((pPatternDict == NULL) || (pPatternDict->NUMPATS == 0)) {
+ m_pModule->JBig2_Error("halftone region segment : has no patterns input");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ 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 = (JBig2ArithCtx*)m_pModule->JBig2_Malloc2(sizeof(JBig2ArithCtx), dwTemp);
+ JBIG2_memset(gbContext, 0, sizeof(JBig2ArithCtx)*dwTemp);
+ JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(m_pStream));
+ pSegment->m_Result.im = pHRD->decode_Arith(pArithDecoder, gbContext, pPause);
+ delete pArithDecoder;
+ if(pSegment->m_Result.im == NULL) {
+ m_pModule->JBig2_Free(gbContext);
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pModule->JBig2_Free(gbContext);
+ m_pStream->alignByte();
+ m_pStream->offset(2);
+ } else {
+ pSegment->m_Result.im = pHRD->decode_MMR(m_pStream, pPause);
+ if(pSegment->m_Result.im == NULL) {
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pStream->alignByte();
+ }
+ if(pSegment->m_cFlags.s.type != 20) {
+ if(!m_bBufSpecified) {
+ JBig2PageInfo *pPageInfo = m_pPageInfoList->getLast();
+ 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);
+ }
+ }
+ m_pPage->composeFrom(ri.x, ri.y, pSegment->m_Result.im, (JBig2ComposeOp)(ri.flags & 0x03));
+ delete pSegment->m_Result.im;
+ pSegment->m_Result.im = NULL;
+ }
+ delete pHRD;
+ return JBIG2_SUCCESS;
+failed:
+ delete pHRD;
+ return nRet;
+}
+
+FX_BOOL CJBig2_Context::parseGenericRegion(CJBig2_Segment *pSegment, IFX_Pause* pPause)
+{
+ FX_DWORD dwTemp;
+ FX_BYTE cFlags;
+ FX_INT32 i, nRet;
+ if(m_pGRD == NULL) {
+ JBIG2_ALLOC(m_pGRD, CJBig2_GRDProc());
+ if((parseRegionInfo(&m_ri) != JBIG2_SUCCESS)
+ || (m_pStream->read1Byte(&cFlags) != 0)) {
+ m_pModule->JBig2_Error("generic region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ if (m_ri.height < 0 || m_ri.width < 0) {
+ m_pModule->JBig2_Error("generic region segment : wrong data.");
+ 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((FX_BYTE*)&m_pGRD->GBAT[i]) != 0) {
+ m_pModule->JBig2_Error("generic region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ }
+ } else {
+ for(i = 0; i < 2; i++) {
+ if(m_pStream->read1Byte((FX_BYTE*)&m_pGRD->GBAT[i]) != 0) {
+ m_pModule->JBig2_Error("generic region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ }
+ }
+ }
+ m_pGRD->USESKIP = 0;
+ }
+ 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 = (JBig2ArithCtx*)m_pModule->JBig2_Malloc(sizeof(JBig2ArithCtx) * dwTemp);
+ JBIG2_memset(m_gbContext, 0, sizeof(JBig2ArithCtx)*dwTemp);
+ }
+ if(m_pArithDecoder == NULL) {
+ JBIG2_ALLOC(m_pArithDecoder, CJBig2_ArithDecoder(m_pStream));
+ m_ProcessiveStatus = m_pGRD->Start_decode_Arith(&pSegment->m_Result.im, m_pArithDecoder, m_gbContext, pPause);
+ } else {
+ m_ProcessiveStatus = m_pGRD->Continue_decode(pPause);
+ }
+ OutputBitmap(pSegment->m_Result.im);
+ if(m_ProcessiveStatus == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
+ if(pSegment->m_cFlags.s.type != 36) {
+ if(!m_bBufSpecified) {
+ JBig2PageInfo *pPageInfo = m_pPageInfoList->getLast();
+ if ((pPageInfo->m_bIsStriped == 1) && (m_ri.y + m_ri.height > m_pPage->m_nHeight)) {
+ m_pPage->expand(m_ri.y + m_ri.height, (pPageInfo->m_cFlags & 4) ? 1 : 0);
+ }
+ }
+ FX_RECT Rect = m_pGRD->GetReplaceRect();
+ m_pPage->composeFrom(m_ri.x + Rect.left, m_ri.y + Rect.top, pSegment->m_Result.im, (JBig2ComposeOp)(m_ri.flags & 0x03), &Rect);
+ }
+ return JBIG2_SUCCESS;
+ } else {
+ delete m_pArithDecoder;
+ m_pArithDecoder = NULL;
+ if(pSegment->m_Result.im == NULL) {
+ m_pModule->JBig2_Free(m_gbContext);
+ nRet = JBIG2_ERROR_FETAL;
+ m_gbContext = NULL;
+ m_ProcessiveStatus = FXCODEC_STATUS_ERROR;
+ goto failed;
+ }
+ m_pModule->JBig2_Free(m_gbContext);
+ m_gbContext = NULL;
+ m_pStream->alignByte();
+ m_pStream->offset(2);
+ }
+ } else {
+ FXCODEC_STATUS status = m_pGRD->Start_decode_MMR(&pSegment->m_Result.im, m_pStream, pPause);
+ while(status == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
+ m_pGRD->Continue_decode(pPause);
+ }
+ if(pSegment->m_Result.im == NULL) {
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pStream->alignByte();
+ }
+ if(pSegment->m_cFlags.s.type != 36) {
+ if(!m_bBufSpecified) {
+ JBig2PageInfo *pPageInfo = m_pPageInfoList->getLast();
+ if ((pPageInfo->m_bIsStriped == 1) && (m_ri.y + m_ri.height > m_pPage->m_nHeight)) {
+ m_pPage->expand(m_ri.y + m_ri.height, (pPageInfo->m_cFlags & 4) ? 1 : 0);
+ }
+ }
+ FX_RECT Rect = m_pGRD->GetReplaceRect();
+ m_pPage->composeFrom(m_ri.x + Rect.left, m_ri.y + Rect.top, pSegment->m_Result.im, (JBig2ComposeOp)(m_ri.flags & 0x03), &Rect);
+ delete pSegment->m_Result.im;
+ pSegment->m_Result.im = NULL;
+ }
+ delete m_pGRD;
+ m_pGRD = NULL;
+ return JBIG2_SUCCESS;
+failed:
+ delete m_pGRD;
+ m_pGRD = NULL;
+ return nRet;
+}
+
+FX_BOOL CJBig2_Context::parseGenericRefinementRegion(CJBig2_Segment *pSegment)
+{
+ FX_DWORD dwTemp;
+ JBig2RegionInfo ri;
+ CJBig2_Segment *pSeg;
+ FX_INT32 i, nRet;
+ FX_BYTE cFlags;
+ JBig2ArithCtx *grContext;
+ CJBig2_GRRDProc *pGRRD;
+ CJBig2_ArithDecoder *pArithDecoder;
+ JBIG2_ALLOC(pGRRD, CJBig2_GRRDProc());
+ if((parseRegionInfo(&ri) != JBIG2_SUCCESS)
+ || (m_pStream->read1Byte(&cFlags) != 0)) {
+ m_pModule->JBig2_Error("generic refinement region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ 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((FX_BYTE*)&pGRRD->GRAT[i]) != 0) {
+ m_pModule->JBig2_Error("generic refinement region segment : data header too short.");
+ nRet = JBIG2_ERROR_TOO_SHORT;
+ goto failed;
+ }
+ }
+ }
+ pSeg = NULL;
+ if(pSegment->m_nReferred_to_segment_count > 0) {
+ for(i = 0; i < pSegment->m_nReferred_to_segment_count; i++) {
+ pSeg = this->findSegmentByNumber(pSegment->m_pReferred_to_segment_numbers[0]);
+ if(pSeg == NULL) {
+ m_pModule->JBig2_Error("generic refinement region segment : can't find refered to segments");
+ nRet = JBIG2_ERROR_FETAL;
+ 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)) {
+ break;
+ }
+ }
+ if(i >= pSegment->m_nReferred_to_segment_count) {
+ m_pModule->JBig2_Error("generic refinement region segment : can't find refered to intermediate region");
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ pGRRD->GRREFERENCE = pSeg->m_Result.im;
+ } else {
+ pGRRD->GRREFERENCE = m_pPage;
+ }
+ pGRRD->GRREFERENCEDX = 0;
+ pGRRD->GRREFERENCEDY = 0;
+ dwTemp = pGRRD->GRTEMPLATE ? 1 << 10 : 1 << 13;
+ grContext = (JBig2ArithCtx*)m_pModule->JBig2_Malloc2(sizeof(JBig2ArithCtx), dwTemp);
+ JBIG2_memset(grContext, 0, sizeof(JBig2ArithCtx)*dwTemp);
+ JBIG2_ALLOC(pArithDecoder, CJBig2_ArithDecoder(m_pStream));
+ pSegment->m_nResultType = JBIG2_IMAGE_POINTER;
+ pSegment->m_Result.im = pGRRD->decode(pArithDecoder, grContext);
+ delete pArithDecoder;
+ if(pSegment->m_Result.im == NULL) {
+ m_pModule->JBig2_Free(grContext);
+ nRet = JBIG2_ERROR_FETAL;
+ goto failed;
+ }
+ m_pModule->JBig2_Free(grContext);
+ m_pStream->alignByte();
+ m_pStream->offset(2);
+ if(pSegment->m_cFlags.s.type != 40) {
+ if(!m_bBufSpecified) {
+ JBig2PageInfo *pPageInfo = m_pPageInfoList->getLast();
+ 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);
+ }
+ }
+ m_pPage->composeFrom(ri.x, ri.y, pSegment->m_Result.im, (JBig2ComposeOp)(ri.flags & 0x03));
+ delete pSegment->m_Result.im;
+ pSegment->m_Result.im = NULL;
+ }
+ delete pGRRD;
+ return JBIG2_SUCCESS;
+failed:
+ delete pGRRD;
+ return nRet;
+}
+FX_BOOL CJBig2_Context::parseTable(CJBig2_Segment *pSegment)
+{
+ pSegment->m_nResultType = JBIG2_HUFFMAN_TABLE_POINTER;
+ JBIG2_ALLOC(pSegment->m_Result.ht, CJBig2_HuffmanTable(m_pStream));
+ if(!pSegment->m_Result.ht->isOK()) {
+ delete pSegment->m_Result.ht;
+ pSegment->m_Result.ht = NULL;
+ return JBIG2_ERROR_FETAL;
+ }
+ m_pStream->alignByte();
+ return JBIG2_SUCCESS;
+}
+FX_INT32 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)) {
+ return JBIG2_ERROR_TOO_SHORT;
+ }
+ return JBIG2_SUCCESS;
+}
+JBig2HuffmanCode *CJBig2_Context::decodeSymbolIDHuffmanTable(CJBig2_BitStream *pStream,
+ FX_DWORD SBNUMSYMS)
+{
+ JBig2HuffmanCode *SBSYMCODES;
+ FX_INT32 runcodes[35], runcodes_len[35], runcode;
+ FX_INT32 i, j, nTemp, nVal, nBits;
+ FX_INT32 run;
+ SBSYMCODES = (JBig2HuffmanCode*)m_pModule->JBig2_Malloc2(sizeof(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;
+ while(i < (int)SBNUMSYMS) {
+ nVal = 0;
+ nBits = 0;
+ for(;;) {
+ if(pStream->read1Bit(&nTemp) != 0) {
+ goto failed;
+ }
+ nVal = (nVal << 1) | nTemp;
+ nBits ++;
+ for(j = 0; j < 35; j++) {
+ if((nBits == runcodes_len[j]) && (nVal == runcodes[j])) {
+ break;
+ }
+ }
+ if(j < 35) {
+ break;
+ }
+ }
+ runcode = j;
+ if(runcode < 32) {
+ SBSYMCODES[i].codelen = runcode;
+ run = 0;
+ } else if(runcode == 32) {
+ if(pStream->readNBits(2, &nTemp) != 0) {
+ goto failed;
+ }
+ run = nTemp + 3;
+ } else if(runcode == 33) {
+ if(pStream->readNBits(3, &nTemp) != 0) {
+ goto failed;
+ }
+ run = nTemp + 3;
+ } else if(runcode == 34) {
+ if(pStream->readNBits(7, &nTemp) != 0) {
+ goto failed;
+ }
+ run = nTemp + 11;
+ }
+ if(run > 0) {
+ if (i + run > (int)SBNUMSYMS) {
+ goto failed;
+ }
+ for(j = 0; j < run; j++) {
+ if(runcode == 32 && i > 0) {
+ SBSYMCODES[i + j].codelen = SBSYMCODES[i - 1].codelen;
+ } else {
+ SBSYMCODES[i + j].codelen = 0;
+ }
+ }
+ i += run;
+ } else {
+ i ++;
+ }
+ }
+ huffman_assign_code(SBSYMCODES, SBNUMSYMS);
+ return SBSYMCODES;
+failed:
+ m_pModule->JBig2_Free(SBSYMCODES);
+ return NULL;
+}
+void CJBig2_Context::huffman_assign_code(int* CODES, int* PREFLEN, int NTEMP)
+{
+ int CURLEN, LENMAX, CURCODE, CURTEMP, i;
+ int *LENCOUNT;
+ int *FIRSTCODE;
+ LENMAX = 0;
+ for(i = 0; i < NTEMP; i++) {
+ if(PREFLEN[i] > LENMAX) {
+ LENMAX = PREFLEN[i];
+ }
+ }
+ LENCOUNT = (int*)m_pModule->JBig2_Malloc2(sizeof(int), (LENMAX + 1));
+ JBIG2_memset(LENCOUNT, 0, sizeof(int) * (LENMAX + 1));
+ FIRSTCODE = (int*)m_pModule->JBig2_Malloc2(sizeof(int), (LENMAX + 1));
+ for(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;
+ }
+ CURLEN = CURLEN + 1;
+ }
+ m_pModule->JBig2_Free(LENCOUNT);
+ m_pModule->JBig2_Free(FIRSTCODE);
+}
+void CJBig2_Context::huffman_assign_code(JBig2HuffmanCode *SBSYMCODES, int NTEMP)
+{
+ int CURLEN, LENMAX, CURCODE, CURTEMP, i;
+ int *LENCOUNT;
+ int *FIRSTCODE;
+ LENMAX = 0;
+ for(i = 0; i < NTEMP; i++) {
+ if(SBSYMCODES[i].codelen > LENMAX) {
+ LENMAX = SBSYMCODES[i].codelen;
+ }
+ }
+ LENCOUNT = (int*)m_pModule->JBig2_Malloc2(sizeof(int), (LENMAX + 1));
+ JBIG2_memset(LENCOUNT, 0, sizeof(int) * (LENMAX + 1));
+ FIRSTCODE = (int*)m_pModule->JBig2_Malloc2(sizeof(int), (LENMAX + 1));
+ for(i = 0; i < NTEMP; i++) {
+ LENCOUNT[SBSYMCODES[i].codelen] ++;
+ }
+ 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(SBSYMCODES[CURTEMP].codelen == CURLEN) {
+ SBSYMCODES[CURTEMP].code = CURCODE;
+ CURCODE = CURCODE + 1;
+ }
+ CURTEMP = CURTEMP + 1;
+ }
+ CURLEN = CURLEN + 1;
+ }
+ m_pModule->JBig2_Free(LENCOUNT);
+ m_pModule->JBig2_Free(FIRSTCODE);
+}
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