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2006.10.26 15:21 "TIFFReadPrivateDirectory function is not working for SUBIFD", by Anurag Singh

2006.10.26 18:34 "Re: TIFFReadPrivateDirectory function is not working for SUBIFD", by Sebastian Boehmer

2006.10.27 06:34 "Re: TIFFReadPrivateDirectory function is not working for SUBIFD", by Anurag Singh

2006.10.27 19:11 "Re: TIFFReadPrivateDirectory function is not working for SUBIFD", by Sebastian Boehmer

2006.10.26 15:21 "TIFFReadPrivateDirectory function is not working for SUBIFD", by Anurag Singh

Hello All

I am trying to read subIFD with the help of  TIFFReadPrivateDirectory(TIFF*
tif, toff_t diroff) , but finally got that it's not working.

this is the code snippet of the  function

__TIFFReadCustomDirectoryPart(TIFF* tif, toff_t diroff, size_t* nfields,
TIFFFieldInfo** info[], int attrPrivateDirectory ) {

 fix = 0;

for (dp = dir, i = dircount; i > 0; i--, dp++) {

      if (tif->tif_flags & TIFF_SWAB) {

         TIFFSwabArrayOfShort(&dp->tdir_tag, 2);

       TIFFSwabArrayOfLong(&dp->tdir_count, 2);

     }

   if (fix >= *nfields || dp->tdir_tag == IGNORE)

  continue;

// none of the line executed below it

 while (fix < *nfields && (*info)[fix]->field_tag < dp->tdir_tag)

  fix++;

}

 }

above nfields is tif->tif_nPrivateFields, which is always 0 at the time of
SubIFD reading. So the loop never complete , it's always return from the
same line.

Please let me know how to read SubIFD with the help of the above fucntions.

Thanks In Advance

Anurag