// Set state to appear as if a
// tile has just been read in.
static bool TIFFStartTile(TIFF tif, uint tile)
{
TIFFDirectory td = tif.tif_dir;
if ((tif.tif_flags & TIF_FLAGS.TIFF_CODERSETUP) == 0)
{
if (!tif.tif_setupdecode(tif))
{
return(false);
}
tif.tif_flags |= TIF_FLAGS.TIFF_CODERSETUP;
}
tif.tif_curtile = tile;
tif.tif_row = (tile % TIFFhowmany(td.td_imagewidth, td.td_tilewidth)) * td.td_tilelength;
tif.tif_col = (tile % TIFFhowmany(td.td_imagelength, td.td_tilelength)) * td.td_tilewidth;
if ((tif.tif_flags & TIF_FLAGS.TIFF_NOREADRAW) == TIF_FLAGS.TIFF_NOREADRAW)
{
tif.tif_rawdata = null; // ?????
tif.tif_rawcp = 0;
tif.tif_rawcc = 0;
}
else
{
tif.tif_rawcp = 0; //was tif.tif_rawdata;
tif.tif_rawcc = td.td_stripbytecount[tile];
}
return(tif.tif_predecode(tif, (ushort)(tile / td.td_stripsperimage)));
}
// Set state to appear as if a
// strip has just been read in.
static bool TIFFStartStrip(TIFF tif, uint strip)
{
TIFFDirectory td = tif.tif_dir;
if ((tif.tif_flags & TIF_FLAGS.TIFF_CODERSETUP) == 0)
{
if (!tif.tif_setupdecode(tif))
{
return(false);
}
tif.tif_flags |= TIF_FLAGS.TIFF_CODERSETUP;
}
tif.tif_curstrip = strip;
tif.tif_row = (strip % td.td_stripsperimage) * td.td_rowsperstrip;
if ((tif.tif_flags & TIF_FLAGS.TIFF_NOREADRAW) == TIF_FLAGS.TIFF_NOREADRAW)
{
tif.tif_rawdata = null; // ?????
tif.tif_rawcp = 0;
tif.tif_rawcc = 0;
}
else
{
tif.tif_rawcp = 0; //was tif.tif_rawdata;
tif.tif_rawcc = td.td_stripbytecount[strip];
}
return(tif.tif_predecode(tif, (ushort)(strip / td.td_stripsperimage)));
}
// Set state to appear as if a
// tile has just been read in.
static bool TIFFStartTile(TIFF tif, uint tile)
{
TIFFDirectory td=tif.tif_dir;
if((tif.tif_flags&TIF_FLAGS.TIFF_CODERSETUP)==0)
{
if(!tif.tif_setupdecode(tif)) return false;
tif.tif_flags|=TIF_FLAGS.TIFF_CODERSETUP;
}
tif.tif_curtile=tile;
tif.tif_row=(tile%TIFFhowmany(td.td_imagewidth, td.td_tilewidth))*td.td_tilelength;
tif.tif_col=(tile%TIFFhowmany(td.td_imagelength, td.td_tilelength))*td.td_tilewidth;
if((tif.tif_flags&TIF_FLAGS.TIFF_NOREADRAW)==TIF_FLAGS.TIFF_NOREADRAW)
{
tif.tif_rawdata=null; // ?????
tif.tif_rawcp=0;
tif.tif_rawcc=0;
}
else
{
tif.tif_rawcp=0; //was tif.tif_rawdata;
tif.tif_rawcc=td.td_stripbytecount[tile];
}
return tif.tif_predecode(tif, (ushort)(tile/td.td_stripsperimage));
}
// Set state to appear as if a
// strip has just been read in.
static bool TIFFStartStrip(TIFF tif, uint strip)
{
TIFFDirectory td=tif.tif_dir;
if((tif.tif_flags&TIF_FLAGS.TIFF_CODERSETUP)==0)
{
if(!tif.tif_setupdecode(tif)) return false;
tif.tif_flags|=TIF_FLAGS.TIFF_CODERSETUP;
}
tif.tif_curstrip=strip;
tif.tif_row=(strip%td.td_stripsperimage)*td.td_rowsperstrip;
if((tif.tif_flags&TIF_FLAGS.TIFF_NOREADRAW)==TIF_FLAGS.TIFF_NOREADRAW)
{
tif.tif_rawdata=null; // ?????
tif.tif_rawcp=0;
tif.tif_rawcc=0;
}
else
{
tif.tif_rawcp=0; //was tif.tif_rawdata;
tif.tif_rawcc=td.td_stripbytecount[strip];
}
return tif.tif_predecode(tif, (ushort)(strip/td.td_stripsperimage));
}
