// Encode the supplied data and write it to the
// specified tile. There must be space for the
// data. The function clamps individual writes
// to a tile to the tile size, but does not (and
// can not) check that multiple writes to the same
// tile do not write more than tile size data.
//
// NB: Image length must be setup before writing; this
// interface does not support automatically growing
// the image on each write (as TIFFWriteScanline does).
public static int TIFFWriteEncodedTile(TIFF tif, uint tile, byte[] data, int cc)
{
string module="TIFFWriteEncodedTile";
ushort sample;
if(!((tif.tif_flags&TIF_FLAGS.TIFF_BEENWRITING)!=0||TIFFWriteCheck(tif, true, module))) return -1;
TIFFDirectory td=tif.tif_dir;
if(tile>=td.td_nstrips)
{
TIFFErrorExt(tif.tif_clientdata, module, "{0}: Tile {1} out of range, max {2}", tif.tif_name, tile, td.td_nstrips);
return -1;
}
// Handle delayed allocation of data buffer. This
// permits it to be sized more intelligently (using
// directory information).
if(!BUFFERCHECK(tif)) return -1;
tif.tif_curtile=tile;
tif.tif_rawcc=0;
tif.tif_rawcp=0;;
if(td.td_stripbytecount[tile]>0)
{
// if we are writing over existing tiles, zero length.
td.td_stripbytecount[tile]=0;
// this forces TIFFAppendToStrip() to do a seek.
tif.tif_curoff=0;
}
// Compute tiles per row & per column to compute
// current row and column
tif.tif_row=(tile%TIFFhowmany(td.td_imagelength, td.td_tilelength))*td.td_tilelength;
tif.tif_col=(tile%TIFFhowmany(td.td_imagewidth, td.td_tilewidth))*td.td_tilewidth;
if((tif.tif_flags&TIF_FLAGS.TIFF_CODERSETUP)==0)
{
if(!tif.tif_setupencode(tif)) return -1;
tif.tif_flags|=TIF_FLAGS.TIFF_CODERSETUP;
}
tif.tif_flags&=~TIF_FLAGS.TIFF_POSTENCODE;
sample=(ushort)(tile/td.td_stripsperimage);
if(!tif.tif_preencode(tif, sample)) return -1;
// Clamp write amount to the tile size. This is mostly
// done so that callers can pass in some large number
// (e.g. -1) and have the tile size used instead.
if(cc<1||cc>tif.tif_tilesize) cc=tif.tif_tilesize;
// swab if needed - note that source buffer will be altered
tif.tif_postdecode(tif, data, 0, cc);
if(!tif.tif_encodetile(tif, data, cc, sample)) return 0;
if(!tif.tif_postencode(tif)) return -1;
if(!isFillOrder(tif, td.td_fillorder)&&(tif.tif_flags&TIF_FLAGS.TIFF_NOBITREV)==0) TIFFReverseBits(tif.tif_rawdata, tif.tif_rawcc);
if(tif.tif_rawcc>0&&!TIFFAppendToStrip(tif, tile, tif.tif_rawdata, tif.tif_rawcc)) return -1;
tif.tif_rawcc=0;
tif.tif_rawcp=0;
return cc;
}
// Encode the supplied data and write it to the
// specified tile. There must be space for the
// data. The function clamps individual writes
// to a tile to the tile size, but does not (and
// can not) check that multiple writes to the same
// tile do not write more than tile size data.
//
// NB: Image length must be setup before writing; this
// interface does not support automatically growing
// the image on each write (as TIFFWriteScanline does).
public static int TIFFWriteEncodedTile(TIFF tif, uint tile, byte[] data, int cc)
{
string module = "TIFFWriteEncodedTile";
ushort sample;
if (!((tif.tif_flags & TIF_FLAGS.TIFF_BEENWRITING) != 0 || TIFFWriteCheck(tif, true, module)))
{
return(-1);
}
TIFFDirectory td = tif.tif_dir;
if (tile >= td.td_nstrips)
{
TIFFErrorExt(tif.tif_clientdata, module, "{0}: Tile {1} out of range, max {2}", tif.tif_name, tile, td.td_nstrips);
return(-1);
}
// Handle delayed allocation of data buffer. This
// permits it to be sized more intelligently (using
// directory information).
if (!BUFFERCHECK(tif))
{
return(-1);
}
tif.tif_curtile = tile;
tif.tif_rawcc = 0;
tif.tif_rawcp = 0;;
if (td.td_stripbytecount[tile] > 0)
{
// if we are writing over existing tiles, zero length.
td.td_stripbytecount[tile] = 0;
// this forces TIFFAppendToStrip() to do a seek.
tif.tif_curoff = 0;
}
// Compute tiles per row & per column to compute
// current row and column
tif.tif_row = (tile % TIFFhowmany(td.td_imagelength, td.td_tilelength)) * td.td_tilelength;
tif.tif_col = (tile % TIFFhowmany(td.td_imagewidth, td.td_tilewidth)) * td.td_tilewidth;
if ((tif.tif_flags & TIF_FLAGS.TIFF_CODERSETUP) == 0)
{
if (!tif.tif_setupencode(tif))
{
return(-1);
}
tif.tif_flags |= TIF_FLAGS.TIFF_CODERSETUP;
}
tif.tif_flags &= ~TIF_FLAGS.TIFF_POSTENCODE;
sample = (ushort)(tile / td.td_stripsperimage);
if (!tif.tif_preencode(tif, sample))
{
return(-1);
}
// Clamp write amount to the tile size. This is mostly
// done so that callers can pass in some large number
// (e.g. -1) and have the tile size used instead.
if (cc < 1 || cc > tif.tif_tilesize)
{
cc = tif.tif_tilesize;
}
// swab if needed - note that source buffer will be altered
tif.tif_postdecode(tif, data, 0, cc);
if (!tif.tif_encodetile(tif, data, cc, sample))
{
return(0);
}
if (!tif.tif_postencode(tif))
{
return(-1);
}
if (!isFillOrder(tif, td.td_fillorder) && (tif.tif_flags & TIF_FLAGS.TIFF_NOBITREV) == 0)
{
TIFFReverseBits(tif.tif_rawdata, tif.tif_rawcc);
}
if (tif.tif_rawcc > 0 && !TIFFAppendToStrip(tif, tile, tif.tif_rawdata, tif.tif_rawcc))
{
return(-1);
}
tif.tif_rawcc = 0;
tif.tif_rawcp = 0;
return(cc);
}
