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Diffstat (limited to 'core/fxcodec/jbig2/JBig2_SddProc.cpp')
-rw-r--r--core/fxcodec/jbig2/JBig2_SddProc.cpp624
1 files changed, 624 insertions, 0 deletions
diff --git a/core/fxcodec/jbig2/JBig2_SddProc.cpp b/core/fxcodec/jbig2/JBig2_SddProc.cpp
new file mode 100644
index 0000000000..80079b93a5
--- /dev/null
+++ b/core/fxcodec/jbig2/JBig2_SddProc.cpp
@@ -0,0 +1,624 @@
+// Copyright 2015 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fxcodec/jbig2/JBig2_SddProc.h"
+
+#include <memory>
+#include <vector>
+
+#include "core/fxcodec/jbig2/JBig2_ArithIntDecoder.h"
+#include "core/fxcodec/jbig2/JBig2_GrdProc.h"
+#include "core/fxcodec/jbig2/JBig2_GrrdProc.h"
+#include "core/fxcodec/jbig2/JBig2_HuffmanDecoder.h"
+#include "core/fxcodec/jbig2/JBig2_HuffmanTable.h"
+#include "core/fxcodec/jbig2/JBig2_HuffmanTable_Standard.h"
+#include "core/fxcodec/jbig2/JBig2_SymbolDict.h"
+#include "core/fxcodec/jbig2/JBig2_TrdProc.h"
+#include "core/include/fxcrt/fx_basic.h"
+
+CJBig2_SymbolDict* CJBig2_SDDProc::decode_Arith(
+ CJBig2_ArithDecoder* pArithDecoder,
+ std::vector<JBig2ArithCtx>* gbContext,
+ std::vector<JBig2ArithCtx>* grContext) {
+ CJBig2_Image** SDNEWSYMS;
+ FX_DWORD HCHEIGHT, NSYMSDECODED;
+ int32_t HCDH;
+ FX_DWORD SYMWIDTH, TOTWIDTH;
+ int32_t DW;
+ CJBig2_Image* BS;
+ FX_DWORD I, J, REFAGGNINST;
+ FX_BOOL* EXFLAGS;
+ FX_DWORD EXINDEX;
+ FX_BOOL CUREXFLAG;
+ FX_DWORD EXRUNLENGTH;
+ FX_DWORD nTmp;
+ FX_DWORD SBNUMSYMS;
+ uint8_t SBSYMCODELEN;
+ int32_t RDXI, RDYI;
+ CJBig2_Image** SBSYMS;
+ std::unique_ptr<CJBig2_ArithIaidDecoder> IAID;
+ std::unique_ptr<CJBig2_SymbolDict> pDict;
+ std::unique_ptr<CJBig2_ArithIntDecoder> IADH(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IADW(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IAAI(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IARDX(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IARDY(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IAEX(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IADT(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IAFS(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IADS(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IAIT(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IARI(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IARDW(new CJBig2_ArithIntDecoder);
+ std::unique_ptr<CJBig2_ArithIntDecoder> IARDH(new CJBig2_ArithIntDecoder);
+ nTmp = 0;
+ while ((FX_DWORD)(1 << nTmp) < (SDNUMINSYMS + SDNUMNEWSYMS)) {
+ nTmp++;
+ }
+ IAID.reset(new CJBig2_ArithIaidDecoder((uint8_t)nTmp));
+ SDNEWSYMS = FX_Alloc(CJBig2_Image*, SDNUMNEWSYMS);
+ FXSYS_memset(SDNEWSYMS, 0, SDNUMNEWSYMS * sizeof(CJBig2_Image*));
+
+ HCHEIGHT = 0;
+ NSYMSDECODED = 0;
+ while (NSYMSDECODED < SDNUMNEWSYMS) {
+ BS = nullptr;
+ IADH->decode(pArithDecoder, &HCDH);
+ HCHEIGHT = HCHEIGHT + HCDH;
+ if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) {
+ goto failed;
+ }
+ SYMWIDTH = 0;
+ TOTWIDTH = 0;
+ for (;;) {
+ if (!IADW->decode(pArithDecoder, &DW))
+ break;
+
+ if (NSYMSDECODED >= SDNUMNEWSYMS)
+ goto failed;
+
+ SYMWIDTH = SYMWIDTH + DW;
+ if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE)
+ goto failed;
+
+ if (HCHEIGHT == 0 || SYMWIDTH == 0) {
+ TOTWIDTH = TOTWIDTH + SYMWIDTH;
+ SDNEWSYMS[NSYMSDECODED] = nullptr;
+ NSYMSDECODED = NSYMSDECODED + 1;
+ continue;
+ }
+ TOTWIDTH = TOTWIDTH + SYMWIDTH;
+ if (SDREFAGG == 0) {
+ std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc());
+ pGRD->MMR = 0;
+ pGRD->GBW = SYMWIDTH;
+ pGRD->GBH = HCHEIGHT;
+ pGRD->GBTEMPLATE = SDTEMPLATE;
+ pGRD->TPGDON = 0;
+ pGRD->USESKIP = 0;
+ pGRD->GBAT[0] = SDAT[0];
+ pGRD->GBAT[1] = SDAT[1];
+ pGRD->GBAT[2] = SDAT[2];
+ pGRD->GBAT[3] = SDAT[3];
+ pGRD->GBAT[4] = SDAT[4];
+ pGRD->GBAT[5] = SDAT[5];
+ pGRD->GBAT[6] = SDAT[6];
+ pGRD->GBAT[7] = SDAT[7];
+ BS = pGRD->decode_Arith(pArithDecoder, gbContext->data());
+ if (!BS) {
+ goto failed;
+ }
+ } else {
+ IAAI->decode(pArithDecoder, (int*)&REFAGGNINST);
+ if (REFAGGNINST > 1) {
+ std::unique_ptr<CJBig2_TRDProc> pDecoder(new CJBig2_TRDProc());
+ pDecoder->SBHUFF = SDHUFF;
+ pDecoder->SBREFINE = 1;
+ pDecoder->SBW = SYMWIDTH;
+ pDecoder->SBH = HCHEIGHT;
+ pDecoder->SBNUMINSTANCES = REFAGGNINST;
+ pDecoder->SBSTRIPS = 1;
+ pDecoder->SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED;
+ SBNUMSYMS = pDecoder->SBNUMSYMS;
+ nTmp = 0;
+ while ((FX_DWORD)(1 << nTmp) < SBNUMSYMS) {
+ nTmp++;
+ }
+ SBSYMCODELEN = (uint8_t)nTmp;
+ pDecoder->SBSYMCODELEN = SBSYMCODELEN;
+ SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS);
+ JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*));
+ JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS,
+ NSYMSDECODED * sizeof(CJBig2_Image*));
+ pDecoder->SBSYMS = SBSYMS;
+ pDecoder->SBDEFPIXEL = 0;
+ pDecoder->SBCOMBOP = JBIG2_COMPOSE_OR;
+ pDecoder->TRANSPOSED = 0;
+ pDecoder->REFCORNER = JBIG2_CORNER_TOPLEFT;
+ pDecoder->SBDSOFFSET = 0;
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFFS(new CJBig2_HuffmanTable(
+ HuffmanTable_B6, FX_ArraySize(HuffmanTable_B6),
+ HuffmanTable_HTOOB_B6));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFDS(new CJBig2_HuffmanTable(
+ HuffmanTable_B8, FX_ArraySize(HuffmanTable_B8),
+ HuffmanTable_HTOOB_B8));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFDT(new CJBig2_HuffmanTable(
+ HuffmanTable_B11, FX_ArraySize(HuffmanTable_B11),
+ HuffmanTable_HTOOB_B11));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDW(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDH(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDY(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE(
+ new CJBig2_HuffmanTable(HuffmanTable_B1,
+ FX_ArraySize(HuffmanTable_B1),
+ HuffmanTable_HTOOB_B1));
+ pDecoder->SBHUFFFS = SBHUFFFS.get();
+ pDecoder->SBHUFFDS = SBHUFFDS.get();
+ pDecoder->SBHUFFDT = SBHUFFDT.get();
+ pDecoder->SBHUFFRDW = SBHUFFRDW.get();
+ pDecoder->SBHUFFRDH = SBHUFFRDH.get();
+ pDecoder->SBHUFFRDX = SBHUFFRDX.get();
+ pDecoder->SBHUFFRDY = SBHUFFRDY.get();
+ pDecoder->SBHUFFRSIZE = SBHUFFRSIZE.get();
+ pDecoder->SBRTEMPLATE = SDRTEMPLATE;
+ pDecoder->SBRAT[0] = SDRAT[0];
+ pDecoder->SBRAT[1] = SDRAT[1];
+ pDecoder->SBRAT[2] = SDRAT[2];
+ pDecoder->SBRAT[3] = SDRAT[3];
+ JBig2IntDecoderState ids;
+ ids.IADT = IADT.get();
+ ids.IAFS = IAFS.get();
+ ids.IADS = IADS.get();
+ ids.IAIT = IAIT.get();
+ ids.IARI = IARI.get();
+ ids.IARDW = IARDW.get();
+ ids.IARDH = IARDH.get();
+ ids.IARDX = IARDX.get();
+ ids.IARDY = IARDY.get();
+ ids.IAID = IAID.get();
+ BS = pDecoder->decode_Arith(pArithDecoder, grContext->data(), &ids);
+ if (!BS) {
+ FX_Free(SBSYMS);
+ goto failed;
+ }
+ FX_Free(SBSYMS);
+ } else if (REFAGGNINST == 1) {
+ SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED;
+ FX_DWORD IDI;
+ IAID->decode(pArithDecoder, &IDI);
+ IARDX->decode(pArithDecoder, &RDXI);
+ IARDY->decode(pArithDecoder, &RDYI);
+ if (IDI >= SBNUMSYMS) {
+ goto failed;
+ }
+ SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS);
+ JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*));
+ JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS,
+ NSYMSDECODED * sizeof(CJBig2_Image*));
+ if (!SBSYMS[IDI]) {
+ FX_Free(SBSYMS);
+ goto failed;
+ }
+ std::unique_ptr<CJBig2_GRRDProc> pGRRD(new CJBig2_GRRDProc());
+ pGRRD->GRW = SYMWIDTH;
+ pGRRD->GRH = HCHEIGHT;
+ pGRRD->GRTEMPLATE = SDRTEMPLATE;
+ pGRRD->GRREFERENCE = SBSYMS[IDI];
+ pGRRD->GRREFERENCEDX = RDXI;
+ pGRRD->GRREFERENCEDY = RDYI;
+ pGRRD->TPGRON = 0;
+ pGRRD->GRAT[0] = SDRAT[0];
+ pGRRD->GRAT[1] = SDRAT[1];
+ pGRRD->GRAT[2] = SDRAT[2];
+ pGRRD->GRAT[3] = SDRAT[3];
+ BS = pGRRD->decode(pArithDecoder, grContext->data());
+ if (!BS) {
+ FX_Free(SBSYMS);
+ goto failed;
+ }
+ FX_Free(SBSYMS);
+ }
+ }
+ SDNEWSYMS[NSYMSDECODED] = BS;
+ BS = nullptr;
+ NSYMSDECODED = NSYMSDECODED + 1;
+ }
+ }
+ EXINDEX = 0;
+ CUREXFLAG = 0;
+ EXFLAGS = FX_Alloc(FX_BOOL, SDNUMINSYMS + SDNUMNEWSYMS);
+ while (EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) {
+ IAEX->decode(pArithDecoder, (int*)&EXRUNLENGTH);
+ if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) {
+ FX_Free(EXFLAGS);
+ goto failed;
+ }
+ if (EXRUNLENGTH != 0) {
+ for (I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) {
+ EXFLAGS[I] = CUREXFLAG;
+ }
+ }
+ EXINDEX = EXINDEX + EXRUNLENGTH;
+ CUREXFLAG = !CUREXFLAG;
+ }
+ pDict.reset(new CJBig2_SymbolDict);
+ I = J = 0;
+ for (I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) {
+ if (EXFLAGS[I] && J < SDNUMEXSYMS) {
+ if (I < SDNUMINSYMS) {
+ pDict->AddImage(SDINSYMS[I] ? new CJBig2_Image(*SDINSYMS[I]) : nullptr);
+ } else {
+ pDict->AddImage(SDNEWSYMS[I - SDNUMINSYMS]);
+ }
+ ++J;
+ } else if (!EXFLAGS[I] && I >= SDNUMINSYMS) {
+ delete SDNEWSYMS[I - SDNUMINSYMS];
+ }
+ }
+ FX_Free(EXFLAGS);
+ FX_Free(SDNEWSYMS);
+ return pDict.release();
+failed:
+ for (I = 0; I < NSYMSDECODED; I++) {
+ if (SDNEWSYMS[I]) {
+ delete SDNEWSYMS[I];
+ SDNEWSYMS[I] = nullptr;
+ }
+ }
+ FX_Free(SDNEWSYMS);
+ return nullptr;
+}
+
+CJBig2_SymbolDict* CJBig2_SDDProc::decode_Huffman(
+ CJBig2_BitStream* pStream,
+ std::vector<JBig2ArithCtx>* gbContext,
+ std::vector<JBig2ArithCtx>* grContext,
+ IFX_Pause* pPause) {
+ CJBig2_Image** SDNEWSYMS;
+ FX_DWORD* SDNEWSYMWIDTHS;
+ FX_DWORD HCHEIGHT, NSYMSDECODED;
+ int32_t HCDH;
+ FX_DWORD SYMWIDTH, TOTWIDTH, HCFIRSTSYM;
+ int32_t DW;
+ CJBig2_Image *BS, *BHC;
+ FX_DWORD I, J, REFAGGNINST;
+ FX_BOOL* EXFLAGS;
+ FX_DWORD EXINDEX;
+ FX_BOOL CUREXFLAG;
+ FX_DWORD EXRUNLENGTH;
+ int32_t nVal, nBits;
+ FX_DWORD nTmp;
+ FX_DWORD SBNUMSYMS;
+ uint8_t SBSYMCODELEN;
+ JBig2HuffmanCode* SBSYMCODES;
+ FX_DWORD IDI;
+ int32_t RDXI, RDYI;
+ FX_DWORD BMSIZE;
+ FX_DWORD stride;
+ CJBig2_Image** SBSYMS;
+ std::unique_ptr<CJBig2_HuffmanDecoder> pHuffmanDecoder(
+ new CJBig2_HuffmanDecoder(pStream));
+ SDNEWSYMS = FX_Alloc(CJBig2_Image*, SDNUMNEWSYMS);
+ FXSYS_memset(SDNEWSYMS, 0, SDNUMNEWSYMS * sizeof(CJBig2_Image*));
+ SDNEWSYMWIDTHS = nullptr;
+ BHC = nullptr;
+ if (SDREFAGG == 0) {
+ SDNEWSYMWIDTHS = FX_Alloc(FX_DWORD, SDNUMNEWSYMS);
+ FXSYS_memset(SDNEWSYMWIDTHS, 0, SDNUMNEWSYMS * sizeof(FX_DWORD));
+ }
+ std::unique_ptr<CJBig2_SymbolDict> pDict(new CJBig2_SymbolDict());
+ std::unique_ptr<CJBig2_HuffmanTable> pTable;
+
+ HCHEIGHT = 0;
+ NSYMSDECODED = 0;
+ BS = nullptr;
+ while (NSYMSDECODED < SDNUMNEWSYMS) {
+ if (pHuffmanDecoder->decodeAValue(SDHUFFDH, &HCDH) != 0) {
+ goto failed;
+ }
+ HCHEIGHT = HCHEIGHT + HCDH;
+ if ((int)HCHEIGHT < 0 || (int)HCHEIGHT > JBIG2_MAX_IMAGE_SIZE) {
+ goto failed;
+ }
+ SYMWIDTH = 0;
+ TOTWIDTH = 0;
+ HCFIRSTSYM = NSYMSDECODED;
+ for (;;) {
+ nVal = pHuffmanDecoder->decodeAValue(SDHUFFDW, &DW);
+ if (nVal == JBIG2_OOB) {
+ break;
+ } else if (nVal != 0) {
+ goto failed;
+ } else {
+ if (NSYMSDECODED >= SDNUMNEWSYMS) {
+ goto failed;
+ }
+ SYMWIDTH = SYMWIDTH + DW;
+ if ((int)SYMWIDTH < 0 || (int)SYMWIDTH > JBIG2_MAX_IMAGE_SIZE) {
+ goto failed;
+ } else if (HCHEIGHT == 0 || SYMWIDTH == 0) {
+ TOTWIDTH = TOTWIDTH + SYMWIDTH;
+ SDNEWSYMS[NSYMSDECODED] = nullptr;
+ NSYMSDECODED = NSYMSDECODED + 1;
+ continue;
+ }
+ TOTWIDTH = TOTWIDTH + SYMWIDTH;
+ }
+ if (SDREFAGG == 1) {
+ if (pHuffmanDecoder->decodeAValue(SDHUFFAGGINST, (int*)&REFAGGNINST) !=
+ 0) {
+ goto failed;
+ }
+ BS = nullptr;
+ if (REFAGGNINST > 1) {
+ std::unique_ptr<CJBig2_TRDProc> pDecoder(new CJBig2_TRDProc());
+ pDecoder->SBHUFF = SDHUFF;
+ pDecoder->SBREFINE = 1;
+ pDecoder->SBW = SYMWIDTH;
+ pDecoder->SBH = HCHEIGHT;
+ pDecoder->SBNUMINSTANCES = REFAGGNINST;
+ pDecoder->SBSTRIPS = 1;
+ pDecoder->SBNUMSYMS = SDNUMINSYMS + NSYMSDECODED;
+ SBNUMSYMS = pDecoder->SBNUMSYMS;
+ SBSYMCODES = FX_Alloc(JBig2HuffmanCode, SBNUMSYMS);
+ nTmp = 1;
+ while ((FX_DWORD)(1 << nTmp) < SBNUMSYMS) {
+ nTmp++;
+ }
+ for (I = 0; I < SBNUMSYMS; I++) {
+ SBSYMCODES[I].codelen = nTmp;
+ SBSYMCODES[I].code = I;
+ }
+ pDecoder->SBSYMCODES = SBSYMCODES;
+ SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS);
+ JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*));
+ JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS,
+ NSYMSDECODED * sizeof(CJBig2_Image*));
+ pDecoder->SBSYMS = SBSYMS;
+ pDecoder->SBDEFPIXEL = 0;
+ pDecoder->SBCOMBOP = JBIG2_COMPOSE_OR;
+ pDecoder->TRANSPOSED = 0;
+ pDecoder->REFCORNER = JBIG2_CORNER_TOPLEFT;
+ pDecoder->SBDSOFFSET = 0;
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFFS(new CJBig2_HuffmanTable(
+ HuffmanTable_B6, FX_ArraySize(HuffmanTable_B6),
+ HuffmanTable_HTOOB_B6));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFDS(new CJBig2_HuffmanTable(
+ HuffmanTable_B8, FX_ArraySize(HuffmanTable_B8),
+ HuffmanTable_HTOOB_B8));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFDT(new CJBig2_HuffmanTable(
+ HuffmanTable_B11, FX_ArraySize(HuffmanTable_B11),
+ HuffmanTable_HTOOB_B11));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDW(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDH(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDY(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE(
+ new CJBig2_HuffmanTable(HuffmanTable_B1,
+ FX_ArraySize(HuffmanTable_B1),
+ HuffmanTable_HTOOB_B1));
+ pDecoder->SBHUFFFS = SBHUFFFS.get();
+ pDecoder->SBHUFFDS = SBHUFFDS.get();
+ pDecoder->SBHUFFDT = SBHUFFDT.get();
+ pDecoder->SBHUFFRDW = SBHUFFRDW.get();
+ pDecoder->SBHUFFRDH = SBHUFFRDH.get();
+ pDecoder->SBHUFFRDX = SBHUFFRDX.get();
+ pDecoder->SBHUFFRDY = SBHUFFRDY.get();
+ pDecoder->SBHUFFRSIZE = SBHUFFRSIZE.get();
+ pDecoder->SBRTEMPLATE = SDRTEMPLATE;
+ pDecoder->SBRAT[0] = SDRAT[0];
+ pDecoder->SBRAT[1] = SDRAT[1];
+ pDecoder->SBRAT[2] = SDRAT[2];
+ pDecoder->SBRAT[3] = SDRAT[3];
+ BS = pDecoder->decode_Huffman(pStream, grContext->data());
+ if (!BS) {
+ FX_Free(SBSYMCODES);
+ FX_Free(SBSYMS);
+ goto failed;
+ }
+ FX_Free(SBSYMCODES);
+ FX_Free(SBSYMS);
+ } else if (REFAGGNINST == 1) {
+ SBNUMSYMS = SDNUMINSYMS + SDNUMNEWSYMS;
+ nTmp = 1;
+ while ((FX_DWORD)(1 << nTmp) < SBNUMSYMS) {
+ nTmp++;
+ }
+ SBSYMCODELEN = (uint8_t)nTmp;
+ SBSYMCODES = FX_Alloc(JBig2HuffmanCode, SBNUMSYMS);
+ for (I = 0; I < SBNUMSYMS; I++) {
+ SBSYMCODES[I].codelen = SBSYMCODELEN;
+ SBSYMCODES[I].code = I;
+ }
+ nVal = 0;
+ nBits = 0;
+ for (;;) {
+ if (pStream->read1Bit(&nTmp) != 0) {
+ FX_Free(SBSYMCODES);
+ goto failed;
+ }
+ nVal = (nVal << 1) | nTmp;
+ for (IDI = 0; IDI < SBNUMSYMS; IDI++) {
+ if ((nVal == SBSYMCODES[IDI].code) &&
+ (nBits == SBSYMCODES[IDI].codelen)) {
+ break;
+ }
+ }
+ if (IDI < SBNUMSYMS) {
+ break;
+ }
+ }
+ FX_Free(SBSYMCODES);
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRDX(
+ new CJBig2_HuffmanTable(HuffmanTable_B15,
+ FX_ArraySize(HuffmanTable_B15),
+ HuffmanTable_HTOOB_B15));
+ std::unique_ptr<CJBig2_HuffmanTable> SBHUFFRSIZE(
+ new CJBig2_HuffmanTable(HuffmanTable_B1,
+ FX_ArraySize(HuffmanTable_B1),
+ HuffmanTable_HTOOB_B1));
+ if ((pHuffmanDecoder->decodeAValue(SBHUFFRDX.get(), &RDXI) != 0) ||
+ (pHuffmanDecoder->decodeAValue(SBHUFFRDX.get(), &RDYI) != 0) ||
+ (pHuffmanDecoder->decodeAValue(SBHUFFRSIZE.get(), &nVal) != 0)) {
+ goto failed;
+ }
+ pStream->alignByte();
+ nTmp = pStream->getOffset();
+ SBSYMS = FX_Alloc(CJBig2_Image*, SBNUMSYMS);
+ JBIG2_memcpy(SBSYMS, SDINSYMS, SDNUMINSYMS * sizeof(CJBig2_Image*));
+ JBIG2_memcpy(SBSYMS + SDNUMINSYMS, SDNEWSYMS,
+ NSYMSDECODED * sizeof(CJBig2_Image*));
+ std::unique_ptr<CJBig2_GRRDProc> pGRRD(new CJBig2_GRRDProc());
+ pGRRD->GRW = SYMWIDTH;
+ pGRRD->GRH = HCHEIGHT;
+ pGRRD->GRTEMPLATE = SDRTEMPLATE;
+ pGRRD->GRREFERENCE = SBSYMS[IDI];
+ pGRRD->GRREFERENCEDX = RDXI;
+ pGRRD->GRREFERENCEDY = RDYI;
+ pGRRD->TPGRON = 0;
+ pGRRD->GRAT[0] = SDRAT[0];
+ pGRRD->GRAT[1] = SDRAT[1];
+ pGRRD->GRAT[2] = SDRAT[2];
+ pGRRD->GRAT[3] = SDRAT[3];
+ std::unique_ptr<CJBig2_ArithDecoder> pArithDecoder(
+ new CJBig2_ArithDecoder(pStream));
+ BS = pGRRD->decode(pArithDecoder.get(), grContext->data());
+ if (!BS) {
+ FX_Free(SBSYMS);
+ goto failed;
+ }
+ pStream->alignByte();
+ pStream->offset(2);
+ if ((FX_DWORD)nVal != (pStream->getOffset() - nTmp)) {
+ delete BS;
+ FX_Free(SBSYMS);
+ goto failed;
+ }
+ FX_Free(SBSYMS);
+ }
+ SDNEWSYMS[NSYMSDECODED] = BS;
+ }
+ if (SDREFAGG == 0) {
+ SDNEWSYMWIDTHS[NSYMSDECODED] = SYMWIDTH;
+ }
+ NSYMSDECODED = NSYMSDECODED + 1;
+ }
+ if (SDREFAGG == 0) {
+ if (pHuffmanDecoder->decodeAValue(SDHUFFBMSIZE, (int32_t*)&BMSIZE) != 0) {
+ goto failed;
+ }
+ pStream->alignByte();
+ if (BMSIZE == 0) {
+ stride = (TOTWIDTH + 7) >> 3;
+ if (pStream->getByteLeft() >= stride * HCHEIGHT) {
+ BHC = new CJBig2_Image(TOTWIDTH, HCHEIGHT);
+ for (I = 0; I < HCHEIGHT; I++) {
+ JBIG2_memcpy(BHC->m_pData + I * BHC->m_nStride,
+ pStream->getPointer(), stride);
+ pStream->offset(stride);
+ }
+ } else {
+ goto failed;
+ }
+ } else {
+ std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc());
+ pGRD->MMR = 1;
+ pGRD->GBW = TOTWIDTH;
+ pGRD->GBH = HCHEIGHT;
+ FXCODEC_STATUS status = pGRD->Start_decode_MMR(&BHC, pStream, nullptr);
+ while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
+ pGRD->Continue_decode(pPause);
+ }
+ pStream->alignByte();
+ }
+ nTmp = 0;
+ if (!BHC) {
+ continue;
+ }
+ for (I = HCFIRSTSYM; I < NSYMSDECODED; I++) {
+ SDNEWSYMS[I] = BHC->subImage(nTmp, 0, SDNEWSYMWIDTHS[I], HCHEIGHT);
+ nTmp += SDNEWSYMWIDTHS[I];
+ }
+ delete BHC;
+ BHC = nullptr;
+ }
+ }
+ EXINDEX = 0;
+ CUREXFLAG = 0;
+ pTable.reset(new CJBig2_HuffmanTable(
+ HuffmanTable_B1, FX_ArraySize(HuffmanTable_B1), HuffmanTable_HTOOB_B1));
+ EXFLAGS = FX_Alloc(FX_BOOL, SDNUMINSYMS + SDNUMNEWSYMS);
+ while (EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) {
+ if (pHuffmanDecoder->decodeAValue(pTable.get(), (int*)&EXRUNLENGTH) != 0) {
+ FX_Free(EXFLAGS);
+ goto failed;
+ }
+ if (EXINDEX + EXRUNLENGTH > SDNUMINSYMS + SDNUMNEWSYMS) {
+ FX_Free(EXFLAGS);
+ goto failed;
+ }
+ if (EXRUNLENGTH != 0) {
+ for (I = EXINDEX; I < EXINDEX + EXRUNLENGTH; I++) {
+ EXFLAGS[I] = CUREXFLAG;
+ }
+ }
+ EXINDEX = EXINDEX + EXRUNLENGTH;
+ CUREXFLAG = !CUREXFLAG;
+ }
+ I = J = 0;
+ for (I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) {
+ if (EXFLAGS[I] && J < SDNUMEXSYMS) {
+ if (I < SDNUMINSYMS) {
+ pDict->AddImage(SDINSYMS[I] ? new CJBig2_Image(*SDINSYMS[I]) : nullptr);
+ } else {
+ pDict->AddImage(SDNEWSYMS[I - SDNUMINSYMS]);
+ }
+ ++J;
+ } else if (!EXFLAGS[I] && I >= SDNUMINSYMS) {
+ delete SDNEWSYMS[I - SDNUMINSYMS];
+ }
+ }
+ FX_Free(EXFLAGS);
+ FX_Free(SDNEWSYMS);
+ if (SDREFAGG == 0) {
+ FX_Free(SDNEWSYMWIDTHS);
+ }
+ return pDict.release();
+failed:
+ for (I = 0; I < NSYMSDECODED; I++) {
+ delete SDNEWSYMS[I];
+ }
+ FX_Free(SDNEWSYMS);
+ if (SDREFAGG == 0) {
+ FX_Free(SDNEWSYMWIDTHS);
+ }
+ return nullptr;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 17:22:26 +0000