uint32_t* CJBig2_GSIDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
JBig2ArithCtx* gbContext,
IFX_Pause* pPause) {
std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc());
pGRD->MMR = GSMMR;
pGRD->GBW = GSW;
pGRD->GBH = GSH;
pGRD->GBTEMPLATE = GSTEMPLATE;
pGRD->TPGDON = 0;
pGRD->USESKIP = GSUSESKIP;
pGRD->SKIP = GSKIP;
if (GSTEMPLATE <= 1) {
pGRD->GBAT[0] = 3;
} else {
pGRD->GBAT[0] = 2;
}
pGRD->GBAT[1] = -1;
if (pGRD->GBTEMPLATE == 0) {
pGRD->GBAT[2] = -3;
pGRD->GBAT[3] = -1;
pGRD->GBAT[4] = 2;
pGRD->GBAT[5] = -2;
pGRD->GBAT[6] = -2;
pGRD->GBAT[7] = -2;
}
std::vector<std::unique_ptr<CJBig2_Image>> GSPLANES(GSBPP);
for (int32_t i = GSBPP - 1; i >= 0; --i) {
CJBig2_Image* pImage = nullptr;
FXCODEC_STATUS status =
pGRD->Start_decode_Arith(&pImage, pArithDecoder, gbContext, nullptr);
while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE)
status = pGRD->Continue_decode(pPause);
if (!pImage)
return nullptr;
GSPLANES[i].reset(pImage);
if (i < GSBPP - 1)
pImage->composeFrom(0, 0, GSPLANES[i + 1].get(), JBIG2_COMPOSE_XOR);
}
std::unique_ptr<uint32_t, FxFreeDeleter> GSVALS(
FX_Alloc2D(uint32_t, GSW, GSH));
JBIG2_memset(GSVALS.get(), 0, sizeof(uint32_t) * GSW * GSH);
for (uint32_t y = 0; y < GSH; ++y) {
for (uint32_t x = 0; x < GSW; ++x) {
for (int32_t i = 0; i < GSBPP; ++i)
GSVALS.get()[y * GSW + x] |= GSPLANES[i]->getPixel(x, y) << i;
}
}
return GSVALS.release();
}
uint32_t* CJBig2_GSIDProc::decode_MMR(CJBig2_BitStream* pStream,
IFX_Pause* pPause) {
std::unique_ptr<CJBig2_GRDProc> pGRD(new CJBig2_GRDProc());
pGRD->MMR = GSMMR;
pGRD->GBW = GSW;
pGRD->GBH = GSH;
std::unique_ptr<CJBig2_Image*> GSPLANES(FX_Alloc(CJBig2_Image*, GSBPP));
JBIG2_memset(GSPLANES.get(), 0, sizeof(CJBig2_Image*) * GSBPP);
pGRD->Start_decode_MMR(&GSPLANES.get()[GSBPP - 1], pStream, nullptr);
if (!GSPLANES.get()[GSBPP - 1])
return nullptr;
pStream->alignByte();
pStream->offset(3);
int32_t J = GSBPP - 2;
while (J >= 0) {
pGRD->Start_decode_MMR(&GSPLANES.get()[J], pStream, nullptr);
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.get()[J]->composeFrom(0, 0, GSPLANES.get()[J + 1],
JBIG2_COMPOSE_XOR);
J = J - 1;
}
std::unique_ptr<uint32_t> GSVALS(FX_Alloc2D(uint32_t, GSW, GSH));
JBIG2_memset(GSVALS.get(), 0, sizeof(uint32_t) * GSW * GSH);
for (uint32_t y = 0; y < GSH; ++y) {
for (uint32_t 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.get()[J];
}
return GSVALS.release();
}
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);
}
}
