public override FieldValue[] GetField(Tiff tif, TiffTag tag)
{
CCITTCodec sp = tif.m_currentCodec as CCITTCodec;
Debug.Assert(sp != null);
FieldValue[] result = new FieldValue[1];
switch (tag)
{
case TiffTag.FAXMODE:
result[0].Set(sp.m_mode);
break;
case TiffTag.FAXFILLFUNC:
result[0].Set(sp.fill);
break;
case TiffTag.GROUP3OPTIONS:
case TiffTag.GROUP4OPTIONS:
result[0].Set(sp.m_groupoptions);
break;
case TiffTag.BADFAXLINES:
result[0].Set(sp.m_badfaxlines);
break;
case TiffTag.CLEANFAXDATA:
result[0].Set(sp.m_cleanfaxdata);
break;
case TiffTag.CONSECUTIVEBADFAXLINES:
result[0].Set(sp.m_badfaxrun);
break;
case TiffTag.FAXRECVPARAMS:
result[0].Set(sp.m_recvparams);
break;
case TiffTag.FAXSUBADDRESS:
result[0].Set(sp.m_subaddress);
break;
case TiffTag.FAXRECVTIME:
result[0].Set(sp.m_recvtime);
break;
case TiffTag.FAXDCS:
result[0].Set(sp.m_faxdcs);
break;
default:
return(base.GetField(tif, tag));
}
return(result);
}
public override bool SetField(Tiff tif, TiffTag tag, FieldValue[] ap)
{
CCITTCodec sp = tif.m_currentCodec as CCITTCodec;
Debug.Assert(sp != null);
switch (tag)
{
case TiffTag.FAXMODE:
sp.m_mode = (FaxMode)ap[0].ToShort();
return(true); /* NB: pseudo tag */
case TiffTag.FAXFILLFUNC:
sp.fill = ap[0].Value as Tiff.FaxFillFunc;
return(true); /* NB: pseudo tag */
case TiffTag.GROUP3OPTIONS:
/* XXX: avoid reading options if compression mismatches. */
if (tif.m_dir.td_compression == Compression.CCITTFAX3)
{
sp.m_groupoptions = (Group3Opt)ap[0].ToShort();
}
break;
case TiffTag.GROUP4OPTIONS:
/* XXX: avoid reading options if compression mismatches. */
if (tif.m_dir.td_compression == Compression.CCITTFAX4)
{
sp.m_groupoptions = (Group3Opt)ap[0].ToShort();
}
break;
case TiffTag.BADFAXLINES:
sp.m_badfaxlines = ap[0].ToInt();
break;
case TiffTag.CLEANFAXDATA:
sp.m_cleanfaxdata = (CleanFaxData)ap[0].ToByte();
break;
case TiffTag.CONSECUTIVEBADFAXLINES:
sp.m_badfaxrun = ap[0].ToInt();
break;
case TiffTag.FAXRECVPARAMS:
sp.m_recvparams = ap[0].ToInt();
break;
case TiffTag.FAXSUBADDRESS:
Tiff.setString(out sp.m_subaddress, ap[0].ToString());
break;
case TiffTag.FAXRECVTIME:
sp.m_recvtime = ap[0].ToInt();
break;
case TiffTag.FAXDCS:
Tiff.setString(out sp.m_faxdcs, ap[0].ToString());
break;
default:
return(base.SetField(tif, tag, ap));
}
TiffFieldInfo fip = tif.FieldWithTag(tag);
if (fip != null)
{
tif.setFieldBit(fip.Bit);
}
else
{
return(false);
}
tif.m_flags |= TiffFlags.DIRTYDIRECT;
return(true);
}
public override void PrintDir(Tiff tif, Stream fd, TiffPrintFlags flags)
{
CCITTCodec sp = tif.m_currentCodec as CCITTCodec;
Debug.Assert(sp != null);
if (tif.fieldSet(CCITTCodec.FIELD_OPTIONS))
{
string sep = " ";
if (tif.m_dir.td_compression == Compression.CCITTFAX4)
{
Tiff.fprintf(fd, " Group 4 Options:");
if ((sp.m_groupoptions & Group3Opt.UNCOMPRESSED) != 0)
{
Tiff.fprintf(fd, "{0}uncompressed data", sep);
}
}
else
{
Tiff.fprintf(fd, " Group 3 Options:");
if ((sp.m_groupoptions & Group3Opt.ENCODING2D) != 0)
{
Tiff.fprintf(fd, "{0}2-d encoding", sep);
sep = "+";
}
if ((sp.m_groupoptions & Group3Opt.FILLBITS) != 0)
{
Tiff.fprintf(fd, "{0}EOL padding", sep);
sep = "+";
}
if ((sp.m_groupoptions & Group3Opt.UNCOMPRESSED) != 0)
{
Tiff.fprintf(fd, "{0}uncompressed data", sep);
}
}
Tiff.fprintf(fd, " ({0} = 0x{1:x})\n", sp.m_groupoptions, sp.m_groupoptions);
}
if (tif.fieldSet(CCITTCodec.FIELD_CLEANFAXDATA))
{
Tiff.fprintf(fd, " Fax Data:");
switch (sp.m_cleanfaxdata)
{
case CleanFaxData.CLEAN:
Tiff.fprintf(fd, " clean");
break;
case CleanFaxData.REGENERATED:
Tiff.fprintf(fd, " receiver regenerated");
break;
case CleanFaxData.UNCLEAN:
Tiff.fprintf(fd, " uncorrected errors");
break;
}
Tiff.fprintf(fd, " ({0} = 0x{1:x})\n", sp.m_cleanfaxdata, sp.m_cleanfaxdata);
}
if (tif.fieldSet(CCITTCodec.FIELD_BADFAXLINES))
{
Tiff.fprintf(fd, " Bad Fax Lines: {0}\n", sp.m_badfaxlines);
}
if (tif.fieldSet(CCITTCodec.FIELD_BADFAXRUN))
{
Tiff.fprintf(fd, " Consecutive Bad Fax Lines: {0}\n", sp.m_badfaxrun);
}
if (tif.fieldSet(CCITTCodec.FIELD_RECVPARAMS))
{
Tiff.fprintf(fd, " Fax Receive Parameters: {0,8:x}\n", sp.m_recvparams);
}
if (tif.fieldSet(CCITTCodec.FIELD_SUBADDRESS))
{
Tiff.fprintf(fd, " Fax SubAddress: {0}\n", sp.m_subaddress);
}
if (tif.fieldSet(CCITTCodec.FIELD_RECVTIME))
{
Tiff.fprintf(fd, " Fax Receive Time: {0} secs\n", sp.m_recvtime);
}
if (tif.fieldSet(CCITTCodec.FIELD_FAXDCS))
{
Tiff.fprintf(fd, " Fax DCS: {0}\n", sp.m_faxdcs);
}
}