static void allocChoppedUpStripArrays(TIFF* tif, uint32 nstrips,
                                      uint64 stripbytes, uint32 rowsperstrip)
{
    TIFFDirectory *td = &tif->tif_dir;
    uint64 bytecount;
    uint64 offset;
    uint32 i;
    uint64 *newcounts;
    uint64 *newoffsets;
    newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
                            "for chopped \"StripByteCounts\" array");
    newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
                            "for chopped \"StripOffsets\" array");
    if (newcounts == NULL || newoffsets == NULL) {
        if (newcounts != NULL)
            _TIFFfree(newcounts);
        if (newoffsets != NULL)
            _TIFFfree(newoffsets);
        return;
    }
    offset = td->td_stripoffset[0];
    bytecount = td->td_stripoffset[td->td_nstrips-1] +
                td->td_stripbytecount[td->td_nstrips-1] - offset;
    for (i = 0; i < nstrips; i++)
    {
        if (stripbytes > bytecount)
            stripbytes = bytecount;
        newcounts[i] = stripbytes;
        newoffsets[i] = stripbytes ? offset : 0;
        offset += stripbytes;
        bytecount -= stripbytes;
    }
    td->td_stripsperimage = td->td_nstrips = nstrips;
    TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
    _TIFFfree(td->td_stripbytecount);
    _TIFFfree(td->td_stripoffset);
    td->td_stripbytecount = newcounts;
    td->td_stripoffset = newoffsets;
    td->td_stripbytecountsorted = 1;
}
['int\nTIFFReadDirectory(TIFF* tif)\n{\n\tstatic const char module[] = "TIFFReadDirectory";\n\tTIFFDirEntry* dir;\n\tuint16 dircount;\n\tTIFFDirEntry* dp;\n\tuint16 di;\n\tconst TIFFField* fip;\n\tuint32 fii=FAILED_FII;\n        toff_t nextdiroff;\n    int bitspersample_read = FALSE;\n        int color_channels;\n\ttif->tif_diroff=tif->tif_nextdiroff;\n\tif (!TIFFCheckDirOffset(tif,tif->tif_nextdiroff))\n\t\treturn 0;\n\t(*tif->tif_cleanup)(tif);\n\ttif->tif_curdir++;\n        nextdiroff = tif->tif_nextdiroff;\n\tdircount=TIFFFetchDirectory(tif,nextdiroff,&dir,&tif->tif_nextdiroff);\n\tif (!dircount)\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,\n\t\t    "Failed to read directory at offset " TIFF_UINT64_FORMAT,nextdiroff);\n\t\treturn 0;\n\t}\n\tTIFFReadDirectoryCheckOrder(tif,dir,dircount);\n\t{\n\t\tTIFFDirEntry* ma;\n\t\tuint16 mb;\n\t\tfor (ma=dir, mb=0; mb<dircount; ma++, mb++)\n\t\t{\n\t\t\tTIFFDirEntry* na;\n\t\t\tuint16 nb;\n\t\t\tfor (na=ma+1, nb=mb+1; nb<dircount; na++, nb++)\n\t\t\t{\n\t\t\t\tif (ma->tdir_tag==na->tdir_tag)\n\t\t\t\t\tna->tdir_tag=IGNORE;\n\t\t\t}\n\t\t}\n\t}\n\ttif->tif_flags &= ~TIFF_BEENWRITING;\n\ttif->tif_flags &= ~TIFF_BUF4WRITE;\n\tTIFFFreeDirectory(tif);\n\tTIFFDefaultDirectory(tif);\n\tTIFFSetField(tif,TIFFTAG_PLANARCONFIG,PLANARCONFIG_CONTIG);\n\tdp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_SAMPLESPERPIXEL);\n\tif (dp)\n\t{\n\t\tif (!TIFFFetchNormalTag(tif,dp,0))\n\t\t\tgoto bad;\n\t\tdp->tdir_tag=IGNORE;\n\t}\n\tdp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_COMPRESSION);\n\tif (dp)\n\t{\n\t\tuint16 value;\n\t\tenum TIFFReadDirEntryErr err;\n\t\terr=TIFFReadDirEntryShort(tif,dp,&value);\n\t\tif (err==TIFFReadDirEntryErrCount)\n\t\t\terr=TIFFReadDirEntryPersampleShort(tif,dp,&value);\n\t\tif (err!=TIFFReadDirEntryErrOk)\n\t\t{\n\t\t\tTIFFReadDirEntryOutputErr(tif,err,module,"Compression",0);\n\t\t\tgoto bad;\n\t\t}\n\t\tif (!TIFFSetField(tif,TIFFTAG_COMPRESSION,value))\n\t\t\tgoto bad;\n\t\tdp->tdir_tag=IGNORE;\n\t}\n\telse\n\t{\n\t\tif (!TIFFSetField(tif,TIFFTAG_COMPRESSION,COMPRESSION_NONE))\n\t\t\tgoto bad;\n\t}\n\tfor (di=0, dp=dir; di<dircount; di++, dp++)\n\t{\n\t\tif (dp->tdir_tag!=IGNORE)\n\t\t{\n\t\t\tTIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);\n\t\t\tif (fii == FAILED_FII)\n\t\t\t{\n\t\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t\t    "Unknown field with tag %d (0x%x) encountered",\n\t\t\t\t    dp->tdir_tag,dp->tdir_tag);\n\t\t\t\tif (!_TIFFMergeFields(tif,\n\t\t\t\t\t_TIFFCreateAnonField(tif,\n\t\t\t\t\t\tdp->tdir_tag,\n\t\t\t\t\t\t(TIFFDataType) dp->tdir_type),\n\t\t\t\t\t1)) {\n\t\t\t\t\tTIFFWarningExt(tif->tif_clientdata,\n\t\t\t\t\t    module,\n\t\t\t\t\t    "Registering anonymous field with tag %d (0x%x) failed",\n\t\t\t\t\t    dp->tdir_tag,\n\t\t\t\t\t    dp->tdir_tag);\n\t\t\t\t\tdp->tdir_tag=IGNORE;\n\t\t\t\t} else {\n\t\t\t\t\tTIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);\n\t\t\t\t\tassert(fii != FAILED_FII);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (dp->tdir_tag!=IGNORE)\n\t\t{\n\t\t\tfip=tif->tif_fields[fii];\n\t\t\tif (fip->field_bit==FIELD_IGNORE)\n\t\t\t\tdp->tdir_tag=IGNORE;\n\t\t\telse\n\t\t\t{\n\t\t\t\tswitch (dp->tdir_tag)\n\t\t\t\t{\n\t\t\t\t\tcase TIFFTAG_STRIPOFFSETS:\n\t\t\t\t\tcase TIFFTAG_STRIPBYTECOUNTS:\n\t\t\t\t\tcase TIFFTAG_TILEOFFSETS:\n\t\t\t\t\tcase TIFFTAG_TILEBYTECOUNTS:\n\t\t\t\t\t\tTIFFSetFieldBit(tif,fip->field_bit);\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase TIFFTAG_IMAGEWIDTH:\n\t\t\t\t\tcase TIFFTAG_IMAGELENGTH:\n\t\t\t\t\tcase TIFFTAG_IMAGEDEPTH:\n\t\t\t\t\tcase TIFFTAG_TILELENGTH:\n\t\t\t\t\tcase TIFFTAG_TILEWIDTH:\n\t\t\t\t\tcase TIFFTAG_TILEDEPTH:\n\t\t\t\t\tcase TIFFTAG_PLANARCONFIG:\n\t\t\t\t\tcase TIFFTAG_ROWSPERSTRIP:\n\t\t\t\t\tcase TIFFTAG_EXTRASAMPLES:\n\t\t\t\t\t\tif (!TIFFFetchNormalTag(tif,dp,0))\n\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\tdp->tdir_tag=IGNORE;\n\t\t\t\t\t\tbreak;\n                                        default:\n                                            if( !_TIFFCheckFieldIsValidForCodec(tif, dp->tdir_tag) )\n                                                dp->tdir_tag=IGNORE;\n                                            break;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\tif ((tif->tif_dir.td_compression==COMPRESSION_OJPEG)&&\n\t    (tif->tif_dir.td_planarconfig==PLANARCONFIG_SEPARATE))\n\t{\n        if (!_TIFFFillStriles(tif))\n            goto bad;\n\t\tdp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_STRIPOFFSETS);\n\t\tif ((dp!=0)&&(dp->tdir_count==1))\n\t\t{\n\t\t\tdp=TIFFReadDirectoryFindEntry(tif,dir,dircount,\n\t\t\t    TIFFTAG_STRIPBYTECOUNTS);\n\t\t\tif ((dp!=0)&&(dp->tdir_count==1))\n\t\t\t{\n\t\t\t\ttif->tif_dir.td_planarconfig=PLANARCONFIG_CONTIG;\n\t\t\t\tTIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t\t    "Planarconfig tag value assumed incorrect, "\n\t\t\t\t    "assuming data is contig instead of chunky");\n\t\t\t}\n\t\t}\n\t}\n\tif (!TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS))\n\t{\n\t\tMissingRequired(tif,"ImageLength");\n\t\tgoto bad;\n\t}\n\tif (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) {\n\t\ttif->tif_dir.td_nstrips = TIFFNumberOfStrips(tif);\n\t\ttif->tif_dir.td_tilewidth = tif->tif_dir.td_imagewidth;\n\t\ttif->tif_dir.td_tilelength = tif->tif_dir.td_rowsperstrip;\n\t\ttif->tif_dir.td_tiledepth = tif->tif_dir.td_imagedepth;\n\t\ttif->tif_flags &= ~TIFF_ISTILED;\n\t} else {\n\t\ttif->tif_dir.td_nstrips = TIFFNumberOfTiles(tif);\n\t\ttif->tif_flags |= TIFF_ISTILED;\n\t}\n\tif (!tif->tif_dir.td_nstrips) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t    "Cannot handle zero number of %s",\n\t\t    isTiled(tif) ? "tiles" : "strips");\n\t\tgoto bad;\n\t}\n\ttif->tif_dir.td_stripsperimage = tif->tif_dir.td_nstrips;\n\tif (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE)\n\t\ttif->tif_dir.td_stripsperimage /= tif->tif_dir.td_samplesperpixel;\n\tif (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) {\n#ifdef OJPEG_SUPPORT\n\t\tif ((tif->tif_dir.td_compression==COMPRESSION_OJPEG) &&\n\t\t    (isTiled(tif)==0) &&\n\t\t    (tif->tif_dir.td_nstrips==1)) {\n\t\t\tTIFFSetFieldBit(tif, FIELD_STRIPOFFSETS);\n\t\t} else\n#endif\n        {\n\t\t\tMissingRequired(tif,\n\t\t\t\tisTiled(tif) ? "TileOffsets" : "StripOffsets");\n\t\t\tgoto bad;\n\t\t}\n\t}\n\tfor (di=0, dp=dir; di<dircount; di++, dp++)\n\t{\n\t\tswitch (dp->tdir_tag)\n\t\t{\n\t\t\tcase IGNORE:\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_MINSAMPLEVALUE:\n\t\t\tcase TIFFTAG_MAXSAMPLEVALUE:\n\t\t\tcase TIFFTAG_BITSPERSAMPLE:\n\t\t\tcase TIFFTAG_DATATYPE:\n\t\t\tcase TIFFTAG_SAMPLEFORMAT:\n\t\t\t\t{\n\t\t\t\t\tuint16 value;\n\t\t\t\t\tenum TIFFReadDirEntryErr err;\n\t\t\t\t\terr=TIFFReadDirEntryShort(tif,dp,&value);\n\t\t\t\t\tif (err==TIFFReadDirEntryErrCount)\n\t\t\t\t\t\terr=TIFFReadDirEntryPersampleShort(tif,dp,&value);\n\t\t\t\t\tif (err!=TIFFReadDirEntryErrOk)\n\t\t\t\t\t{\n\t\t\t\t\t\tfip = TIFFFieldWithTag(tif,dp->tdir_tag);\n\t\t\t\t\t\tTIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",0);\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t}\n\t\t\t\t\tif (!TIFFSetField(tif,dp->tdir_tag,value))\n\t\t\t\t\t\tgoto bad;\n                    if( dp->tdir_tag == TIFFTAG_BITSPERSAMPLE )\n                        bitspersample_read = TRUE;\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_SMINSAMPLEVALUE:\n\t\t\tcase TIFFTAG_SMAXSAMPLEVALUE:\n\t\t\t\t{\n\t\t\t\t\tdouble *data = NULL;\n\t\t\t\t\tenum TIFFReadDirEntryErr err;\n\t\t\t\t\tuint32 saved_flags;\n\t\t\t\t\tint m;\n\t\t\t\t\tif (dp->tdir_count != (uint64)tif->tif_dir.td_samplesperpixel)\n\t\t\t\t\t\terr = TIFFReadDirEntryErrCount;\n\t\t\t\t\telse\n\t\t\t\t\t\terr = TIFFReadDirEntryDoubleArray(tif, dp, &data);\n\t\t\t\t\tif (err!=TIFFReadDirEntryErrOk)\n\t\t\t\t\t{\n\t\t\t\t\t\tfip = TIFFFieldWithTag(tif,dp->tdir_tag);\n\t\t\t\t\t\tTIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",0);\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t}\n\t\t\t\t\tsaved_flags = tif->tif_flags;\n\t\t\t\t\ttif->tif_flags |= TIFF_PERSAMPLE;\n\t\t\t\t\tm = TIFFSetField(tif,dp->tdir_tag,data);\n\t\t\t\t\ttif->tif_flags = saved_flags;\n\t\t\t\t\t_TIFFfree(data);\n\t\t\t\t\tif (!m)\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_STRIPOFFSETS:\n\t\t\tcase TIFFTAG_TILEOFFSETS:\n#if defined(DEFER_STRILE_LOAD)\n                                _TIFFmemcpy( &(tif->tif_dir.td_stripoffset_entry),\n                                             dp, sizeof(TIFFDirEntry) );\n#else\n                                if( tif->tif_dir.td_stripoffset != NULL )\n                                {\n                                    TIFFErrorExt(tif->tif_clientdata, module,\n                                        "tif->tif_dir.td_stripoffset is "\n                                        "already allocated. Likely duplicated "\n                                        "StripOffsets/TileOffsets tag");\n                                    goto bad;\n                                }\n\t\t\t\tif (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_nstrips,&tif->tif_dir.td_stripoffset))\n\t\t\t\t\tgoto bad;\n#endif\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_STRIPBYTECOUNTS:\n\t\t\tcase TIFFTAG_TILEBYTECOUNTS:\n#if defined(DEFER_STRILE_LOAD)\n                                _TIFFmemcpy( &(tif->tif_dir.td_stripbytecount_entry),\n                                             dp, sizeof(TIFFDirEntry) );\n#else\n                                if( tif->tif_dir.td_stripbytecount != NULL )\n                                {\n                                    TIFFErrorExt(tif->tif_clientdata, module,\n                                        "tif->tif_dir.td_stripbytecount is "\n                                        "already allocated. Likely duplicated "\n                                        "StripByteCounts/TileByteCounts tag");\n                                    goto bad;\n                                }\n                                if (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_nstrips,&tif->tif_dir.td_stripbytecount))\n\t\t\t\t\tgoto bad;\n#endif\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_COLORMAP:\n\t\t\tcase TIFFTAG_TRANSFERFUNCTION:\n\t\t\t\t{\n\t\t\t\t\tenum TIFFReadDirEntryErr err;\n\t\t\t\t\tuint32 countpersample;\n\t\t\t\t\tuint32 countrequired;\n\t\t\t\t\tuint32 incrementpersample;\n\t\t\t\t\tuint16* value=NULL;\n                    if( !bitspersample_read )\n                    {\n                        fip = TIFFFieldWithTag(tif,dp->tdir_tag);\n                        TIFFWarningExt(tif->tif_clientdata,module,\n                                       "Ignoring %s since BitsPerSample tag not found",\n                                       fip ? fip->field_name : "unknown tagname");\n                        continue;\n                    }\n\t\t\t\t\tif (tif->tif_dir.td_bitspersample > 24)\n\t\t\t\t\t{\n\t\t\t\t\t    fip = TIFFFieldWithTag(tif,dp->tdir_tag);\n\t\t\t\t\t    TIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t\t\t\t"Ignoring %s because BitsPerSample=%d>24",\n\t\t\t\t\t\tfip ? fip->field_name : "unknown tagname",\n\t\t\t\t\t\ttif->tif_dir.td_bitspersample);\n\t\t\t\t\t    continue;\n\t\t\t\t\t}\n\t\t\t\t\tcountpersample=(1U<<tif->tif_dir.td_bitspersample);\n\t\t\t\t\tif ((dp->tdir_tag==TIFFTAG_TRANSFERFUNCTION)&&(dp->tdir_count==(uint64)countpersample))\n\t\t\t\t\t{\n\t\t\t\t\t\tcountrequired=countpersample;\n\t\t\t\t\t\tincrementpersample=0;\n\t\t\t\t\t}\n\t\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\t\tcountrequired=3*countpersample;\n\t\t\t\t\t\tincrementpersample=countpersample;\n\t\t\t\t\t}\n\t\t\t\t\tif (dp->tdir_count!=(uint64)countrequired)\n\t\t\t\t\t\terr=TIFFReadDirEntryErrCount;\n\t\t\t\t\telse\n\t\t\t\t\t\terr=TIFFReadDirEntryShortArray(tif,dp,&value);\n\t\t\t\t\tif (err!=TIFFReadDirEntryErrOk)\n                    {\n\t\t\t\t\t\tfip = TIFFFieldWithTag(tif,dp->tdir_tag);\n\t\t\t\t\t\tTIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",1);\n                    }\n\t\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\t\tTIFFSetField(tif,dp->tdir_tag,value,value+incrementpersample,value+2*incrementpersample);\n\t\t\t\t\t\t_TIFFfree(value);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_OSUBFILETYPE:\n\t\t\t\t{\n\t\t\t\t\tuint16 valueo;\n\t\t\t\t\tuint32 value;\n\t\t\t\t\tif (TIFFReadDirEntryShort(tif,dp,&valueo)==TIFFReadDirEntryErrOk)\n\t\t\t\t\t{\n\t\t\t\t\t\tswitch (valueo)\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\tcase OFILETYPE_REDUCEDIMAGE: value=FILETYPE_REDUCEDIMAGE; break;\n\t\t\t\t\t\t\tcase OFILETYPE_PAGE: value=FILETYPE_PAGE; break;\n\t\t\t\t\t\t\tdefault: value=0; break;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif (value!=0)\n\t\t\t\t\t\t\tTIFFSetField(tif,TIFFTAG_SUBFILETYPE,value);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tdefault:\n\t\t\t\t(void) TIFFFetchNormalTag(tif, dp, TRUE);\n\t\t\t\tbreak;\n\t\t}\n\t}\n\tif (tif->tif_dir.td_compression==COMPRESSION_OJPEG)\n\t{\n\t\tif (!TIFFFieldSet(tif,FIELD_PHOTOMETRIC))\n\t\t{\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t    "Photometric tag is missing, assuming data is YCbCr");\n\t\t\tif (!TIFFSetField(tif,TIFFTAG_PHOTOMETRIC,PHOTOMETRIC_YCBCR))\n\t\t\t\tgoto bad;\n\t\t}\n\t\telse if (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB)\n\t\t{\n\t\t\ttif->tif_dir.td_photometric=PHOTOMETRIC_YCBCR;\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t    "Photometric tag value assumed incorrect, "\n\t\t\t    "assuming data is YCbCr instead of RGB");\n\t\t}\n\t\tif (!TIFFFieldSet(tif,FIELD_BITSPERSAMPLE))\n\t\t{\n\t\t\tTIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t    "BitsPerSample tag is missing, assuming 8 bits per sample");\n\t\t\tif (!TIFFSetField(tif,TIFFTAG_BITSPERSAMPLE,8))\n\t\t\t\tgoto bad;\n\t\t}\n\t\tif (!TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL))\n\t\t{\n\t\t\tif (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB)\n\t\t\t{\n\t\t\t\tTIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t\t    "SamplesPerPixel tag is missing, "\n\t\t\t\t    "assuming correct SamplesPerPixel value is 3");\n\t\t\t\tif (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (tif->tif_dir.td_photometric==PHOTOMETRIC_YCBCR)\n\t\t\t{\n\t\t\t\tTIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t\t    "SamplesPerPixel tag is missing, "\n\t\t\t\t    "applying correct SamplesPerPixel value of 3");\n\t\t\t\tif (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\telse if ((tif->tif_dir.td_photometric==PHOTOMETRIC_MINISWHITE)\n\t\t\t\t || (tif->tif_dir.td_photometric==PHOTOMETRIC_MINISBLACK))\n\t\t\t{\n\t\t\t\tif (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,1))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t}\n\t}\n        color_channels = _TIFFGetMaxColorChannels(tif->tif_dir.td_photometric);\n        if (color_channels && tif->tif_dir.td_samplesperpixel - tif->tif_dir.td_extrasamples > color_channels) {\n                uint16 old_extrasamples;\n                uint16 *new_sampleinfo;\n                TIFFWarningExt(tif->tif_clientdata,module, "Sum of Photometric type-related "\n                    "color channels and ExtraSamples doesn\'t match SamplesPerPixel. "\n                    "Defining non-color channels as ExtraSamples.");\n                old_extrasamples = tif->tif_dir.td_extrasamples;\n                tif->tif_dir.td_extrasamples = (uint16) (tif->tif_dir.td_samplesperpixel - color_channels);\n                new_sampleinfo = (uint16*) _TIFFcalloc(tif->tif_dir.td_extrasamples, sizeof(uint16));\n                if (!new_sampleinfo) {\n                    TIFFErrorExt(tif->tif_clientdata, module, "Failed to allocate memory for "\n                                "temporary new sampleinfo array (%d 16 bit elements)",\n                                tif->tif_dir.td_extrasamples);\n                    goto bad;\n                }\n                memcpy(new_sampleinfo, tif->tif_dir.td_sampleinfo, old_extrasamples * sizeof(uint16));\n                _TIFFsetShortArray(&tif->tif_dir.td_sampleinfo, new_sampleinfo, tif->tif_dir.td_extrasamples);\n                _TIFFfree(new_sampleinfo);\n        }\n\tif (tif->tif_dir.td_photometric == PHOTOMETRIC_PALETTE &&\n\t    !TIFFFieldSet(tif, FIELD_COLORMAP)) {\n\t\tif ( tif->tif_dir.td_bitspersample>=8 && tif->tif_dir.td_samplesperpixel==3)\n\t\t\ttif->tif_dir.td_photometric = PHOTOMETRIC_RGB;\n\t\telse if (tif->tif_dir.td_bitspersample>=8)\n\t\t\ttif->tif_dir.td_photometric = PHOTOMETRIC_MINISBLACK;\n\t\telse {\n\t\t\tMissingRequired(tif, "Colormap");\n\t\t\tgoto bad;\n\t\t}\n\t}\n\tif (tif->tif_dir.td_compression!=COMPRESSION_OJPEG)\n\t{\n\t\tif (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) {\n\t\t\tif ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG &&\n\t\t\t    tif->tif_dir.td_nstrips > 1) ||\n\t\t\t    (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE &&\n\t\t\t     tif->tif_dir.td_nstrips != (uint32)tif->tif_dir.td_samplesperpixel)) {\n\t\t\t    MissingRequired(tif, "StripByteCounts");\n\t\t\t    goto bad;\n\t\t\t}\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t\t"TIFF directory is missing required "\n\t\t\t\t"\\"StripByteCounts\\" field, calculating from imagelength");\n\t\t\tif (EstimateStripByteCounts(tif, dir, dircount) < 0)\n\t\t\t    goto bad;\n\t\t#define\tBYTECOUNTLOOKSBAD \\\n\t\t    ( (tif->tif_dir.td_stripbytecount[0] == 0 && tif->tif_dir.td_stripoffset[0] != 0) || \\\n\t\t      (tif->tif_dir.td_compression == COMPRESSION_NONE && \\\n\t\t       (tif->tif_dir.td_stripoffset[0] <= TIFFGetFileSize(tif) && \\\n\t\t        tif->tif_dir.td_stripbytecount[0] > TIFFGetFileSize(tif) - tif->tif_dir.td_stripoffset[0])) || \\\n\t\t      (tif->tif_mode == O_RDONLY && \\\n\t\t       tif->tif_dir.td_compression == COMPRESSION_NONE && \\\n\t\t       tif->tif_dir.td_stripbytecount[0] < TIFFScanlineSize64(tif) * tif->tif_dir.td_imagelength) )\n\t\t} else if (tif->tif_dir.td_nstrips == 1\n                           && !(tif->tif_flags&TIFF_ISTILED)\n                           && _TIFFFillStriles(tif)\n\t\t\t   && tif->tif_dir.td_stripoffset[0] != 0\n\t\t\t   && BYTECOUNTLOOKSBAD) {\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t    "Bogus \\"StripByteCounts\\" field, ignoring and calculating from imagelength");\n\t\t\tif(EstimateStripByteCounts(tif, dir, dircount) < 0)\n\t\t\t    goto bad;\n#if !defined(DEFER_STRILE_LOAD)\n\t\t} else if (tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG\n\t\t\t   && tif->tif_dir.td_nstrips > 2\n\t\t\t   && tif->tif_dir.td_compression == COMPRESSION_NONE\n\t\t\t   && tif->tif_dir.td_stripbytecount[0] != tif->tif_dir.td_stripbytecount[1]\n\t\t\t   && tif->tif_dir.td_stripbytecount[0] != 0\n\t\t\t   && tif->tif_dir.td_stripbytecount[1] != 0 ) {\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t    "Wrong \\"StripByteCounts\\" field, ignoring and calculating from imagelength");\n\t\t\tif (EstimateStripByteCounts(tif, dir, dircount) < 0)\n\t\t\t    goto bad;\n#endif\n\t\t}\n\t}\n\tif (dir)\n\t{\n\t\t_TIFFfree(dir);\n\t\tdir=NULL;\n\t}\n\tif (!TIFFFieldSet(tif, FIELD_MAXSAMPLEVALUE))\n\t{\n\t\tif (tif->tif_dir.td_bitspersample>=16)\n\t\t\ttif->tif_dir.td_maxsamplevalue=0xFFFF;\n\t\telse\n\t\t\ttif->tif_dir.td_maxsamplevalue = (uint16)((1L<<tif->tif_dir.td_bitspersample)-1);\n\t}\n#if !defined(DEFER_STRILE_LOAD)\n\tif (tif->tif_dir.td_nstrips > 1) {\n\t\tuint32 strip;\n\t\ttif->tif_dir.td_stripbytecountsorted = 1;\n\t\tfor (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) {\n\t\t\tif (tif->tif_dir.td_stripoffset[strip - 1] >\n\t\t\t    tif->tif_dir.td_stripoffset[strip]) {\n\t\t\t\ttif->tif_dir.td_stripbytecountsorted = 0;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t}\n#endif\n\t(*tif->tif_fixuptags)(tif);\n\tif ((tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG)&&\n\t    (tif->tif_dir.td_nstrips==1)&&\n\t    (tif->tif_dir.td_compression==COMPRESSION_NONE)&&\n\t    ((tif->tif_flags&(TIFF_STRIPCHOP|TIFF_ISTILED))==TIFF_STRIPCHOP))\n    {\n        if ( !_TIFFFillStriles(tif) || !tif->tif_dir.td_stripbytecount )\n            return 0;\n\t\tChopUpSingleUncompressedStrip(tif);\n    }\n        if( tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG &&\n            tif->tif_dir.td_compression == COMPRESSION_NONE &&\n            (tif->tif_flags&(TIFF_STRIPCHOP|TIFF_ISTILED)) == TIFF_STRIPCHOP &&\n            TIFFStripSize64(tif) > 0x7FFFFFFFUL )\n        {\n            if ( !_TIFFFillStriles(tif) || !tif->tif_dir.td_stripbytecount )\n                return 0;\n            TryChopUpUncompressedBigTiff(tif);\n        }\n\ttif->tif_flags &= ~TIFF_DIRTYDIRECT;\n\ttif->tif_flags &= ~TIFF_DIRTYSTRIP;\n\ttif->tif_row = (uint32) -1;\n\ttif->tif_curstrip = (uint32) -1;\n\ttif->tif_col = (uint32) -1;\n\ttif->tif_curtile = (uint32) -1;\n\ttif->tif_tilesize = (tmsize_t) -1;\n\ttif->tif_scanlinesize = TIFFScanlineSize(tif);\n\tif (!tif->tif_scanlinesize) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t    "Cannot handle zero scanline size");\n\t\treturn (0);\n\t}\n\tif (isTiled(tif)) {\n\t\ttif->tif_tilesize = TIFFTileSize(tif);\n\t\tif (!tif->tif_tilesize) {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t     "Cannot handle zero tile size");\n\t\t\treturn (0);\n\t\t}\n\t} else {\n\t\tif (!TIFFStripSize(tif)) {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t    "Cannot handle zero strip size");\n\t\t\treturn (0);\n\t\t}\n\t}\n\treturn (1);\nbad:\n\tif (dir)\n\t\t_TIFFfree(dir);\n\treturn (0);\n}', 'static void TryChopUpUncompressedBigTiff( TIFF* tif )\n{\n    TIFFDirectory *td = &tif->tif_dir;\n    uint32 rowblock;\n    uint64 rowblockbytes;\n    uint32 i;\n    uint64 stripsize;\n    uint32 rowblocksperstrip;\n    uint32 rowsperstrip;\n    uint64 stripbytes;\n    uint32 nstrips;\n    stripsize = TIFFStripSize64(tif);\n    assert( tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG );\n    assert( tif->tif_dir.td_compression == COMPRESSION_NONE );\n    assert( (tif->tif_flags&(TIFF_STRIPCHOP|TIFF_ISTILED)) == TIFF_STRIPCHOP );\n    assert( stripsize > 0x7FFFFFFFUL );\n    if( td->td_stripbytecount[0] == 0 && tif->tif_mode != O_RDONLY )\n        return;\n    if ((td->td_photometric == PHOTOMETRIC_YCBCR)&&\n        (!isUpSampled(tif)))\n        rowblock = td->td_ycbcrsubsampling[1];\n    else\n        rowblock = 1;\n    rowblockbytes = TIFFVStripSize64(tif, rowblock);\n    if( rowblockbytes == 0 || rowblockbytes > 0x7FFFFFFFUL )\n    {\n        return;\n    }\n    for( i = 0; i < td->td_nstrips; i++ )\n    {\n        if( i == td->td_nstrips - 1 )\n        {\n            if( td->td_stripbytecount[i] < TIFFVStripSize64(\n                    tif, td->td_imagelength - i * td->td_rowsperstrip ) )\n            {\n                return;\n            }\n        }\n        else\n        {\n            if( td->td_stripbytecount[i] != stripsize )\n            {\n                return;\n            }\n            if( i > 0 && td->td_stripoffset[i] !=\n                    td->td_stripoffset[i-1] + td->td_stripbytecount[i - 1] )\n            {\n                return;\n            }\n        }\n    }\n    rowblocksperstrip = (uint32) (512 * 1024 * 1024 / rowblockbytes);\n    if( rowblocksperstrip == 0 )\n        rowblocksperstrip = 1;\n    rowsperstrip = rowblocksperstrip * rowblock;\n    stripbytes = rowblocksperstrip * rowblockbytes;\n    assert( stripbytes <= 0x7FFFFFFFUL );\n    nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip);\n    if( nstrips == 0 )\n        return;\n    if( tif->tif_mode == O_RDONLY &&\n        nstrips > 1000000 &&\n        (td->td_stripoffset[td->td_nstrips-1] > TIFFGetFileSize(tif) ||\n         td->td_stripoffset[td->td_nstrips-1] +\n         td->td_stripbytecount[td->td_nstrips-1] > TIFFGetFileSize(tif)) )\n    {\n        return;\n    }\n    allocChoppedUpStripArrays(tif, nstrips, stripbytes, rowsperstrip);\n}', 'static void allocChoppedUpStripArrays(TIFF* tif, uint32 nstrips,\n                                      uint64 stripbytes, uint32 rowsperstrip)\n{\n    TIFFDirectory *td = &tif->tif_dir;\n    uint64 bytecount;\n    uint64 offset;\n    uint32 i;\n    uint64 *newcounts;\n    uint64 *newoffsets;\n    newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),\n                            "for chopped \\"StripByteCounts\\" array");\n    newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),\n                            "for chopped \\"StripOffsets\\" array");\n    if (newcounts == NULL || newoffsets == NULL) {\n        if (newcounts != NULL)\n            _TIFFfree(newcounts);\n        if (newoffsets != NULL)\n            _TIFFfree(newoffsets);\n        return;\n    }\n    offset = td->td_stripoffset[0];\n    bytecount = td->td_stripoffset[td->td_nstrips-1] +\n                td->td_stripbytecount[td->td_nstrips-1] - offset;\n    for (i = 0; i < nstrips; i++)\n    {\n        if (stripbytes > bytecount)\n            stripbytes = bytecount;\n        newcounts[i] = stripbytes;\n        newoffsets[i] = stripbytes ? offset : 0;\n        offset += stripbytes;\n        bytecount -= stripbytes;\n    }\n    td->td_stripsperimage = td->td_nstrips = nstrips;\n    TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);\n    _TIFFfree(td->td_stripbytecount);\n    _TIFFfree(td->td_stripoffset);\n    td->td_stripbytecount = newcounts;\n    td->td_stripoffset = newoffsets;\n    td->td_stripbytecountsorted = 1;\n}']