/*
 * Write the supplied data to the specified strip.
 * There must be space for the data; we don't check
 * if strips overlap!
 *
 * NB: Image length must be setup before writing; this
 *     interface does not support automatically growing
 *     the image on each write (as TIFFWriteScanline does).
 */
tmsize_t
TIFFWriteRawTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc)
{
	static const char module[] = "TIFFWriteRawTile";

	if (!WRITECHECKTILES(tif, module))
		return ((tmsize_t)(-1));
	if (tile >= tif->tif_dir.td_nstrips) {
		TIFFErrorExt(tif->tif_clientdata, module, "Tile %lu out of range, max %lu",
		    (unsigned long) tile,
		    (unsigned long) tif->tif_dir.td_nstrips);
		return ((tmsize_t)(-1));
	}
	return (TIFFAppendToStrip(tif, tile, (uint8*) data, cc) ?
	    cc : (tmsize_t)(-1));
}
Exemple #2
0
/*
 * Write the supplied data to the specified strip.
 * There must be space for the data; we don't check
 * if strips overlap!
 *
 * NB: Image length must be setup before writing; this
 *     interface does not support automatically growing
 *     the image on each write (as TIFFWriteScanline does).
 */
tsize_t
TIFFWriteRawTile(TIFF* tif, ttile_t tile, tdata_t data, tsize_t cc)
{
	static const char module[] = "TIFFWriteRawTile";

	if (!WRITECHECKTILES(tif, module))
		return ((tsize_t) -1);
	if (tile >= tif->tif_dir.td_nstrips) {
		TIFFErrorExt(tif->tif_clientdata, module, "%s: Tile %lu out of range, max %lu",
		    tif->tif_name, (unsigned long) tile,
		    (unsigned long) tif->tif_dir.td_nstrips);
		return ((tsize_t) -1);
	}
	return (TIFFAppendToStrip(tif, tile, (tidata_t) data, cc) ?
	    cc : (tsize_t) -1);
}
/*
 * 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).
 */
tmsize_t
TIFFWriteEncodedTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc)
{
	static const char module[] = "TIFFWriteEncodedTile";
	TIFFDirectory *td;
	uint16 sample;
        uint32 howmany32;

	if (!WRITECHECKTILES(tif, module))
		return ((tmsize_t)(-1));
	td = &tif->tif_dir;
	if (tile >= td->td_nstrips) {
		TIFFErrorExt(tif->tif_clientdata, module, "Tile %lu out of range, max %lu",
		    (unsigned long) tile, (unsigned long) td->td_nstrips);
		return ((tmsize_t)(-1));
	}
	/*
	 * Handle delayed allocation of data buffer.  This
	 * permits it to be sized more intelligently (using
	 * directory information).
	 */
	if (!BUFFERCHECK(tif))
		return ((tmsize_t)(-1));

        tif->tif_flags |= TIFF_BUF4WRITE;
	tif->tif_curtile = tile;

	if( td->td_stripbytecount[tile] > 0 )
        {
            /* Make sure that at the first attempt of rewriting the tile, we will have */
            /* more bytes available in the output buffer than the previous byte count, */
            /* so that TIFFAppendToStrip() will detect the overflow when it is called the first */
            /* time if the new compressed tile is bigger than the older one. (GDAL #4771) */
            if( tif->tif_rawdatasize <= (tmsize_t) td->td_stripbytecount[tile] )
            {
                if( !(TIFFWriteBufferSetup(tif, NULL,
                    (tmsize_t)TIFFroundup_64((uint64)(td->td_stripbytecount[tile] + 1), 1024))) )
                    return ((tmsize_t)(-1));
            }

	    /* Force TIFFAppendToStrip() to consider placing data at end
               of file. */
            tif->tif_curoff = 0;
        }

	tif->tif_rawcc = 0;
	tif->tif_rawcp = tif->tif_rawdata;

	/* 
	 * Compute tiles per row & per column to compute
	 * current row and column
	 */
        howmany32=TIFFhowmany_32(td->td_imagelength, td->td_tilelength);
        if (howmany32 == 0) {
                 TIFFErrorExt(tif->tif_clientdata,module,"Zero tiles");
                return ((tmsize_t)(-1));
        }
	tif->tif_row = (tile % howmany32) * td->td_tilelength;
        howmany32=TIFFhowmany_32(td->td_imagewidth, td->td_tilewidth);
        if (howmany32 == 0) {
                 TIFFErrorExt(tif->tif_clientdata,module,"Zero tiles");
                return ((tmsize_t)(-1));
        }
	tif->tif_col = (tile % howmany32) * td->td_tilewidth;

	if ((tif->tif_flags & TIFF_CODERSETUP) == 0) {
		if (!(*tif->tif_setupencode)(tif))
			return ((tmsize_t)(-1));
		tif->tif_flags |= TIFF_CODERSETUP;
	}
	tif->tif_flags &= ~TIFF_POSTENCODE;

	/*
	 * 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;

    /* shortcut to avoid an extra memcpy() */
    if( td->td_compression == COMPRESSION_NONE )
    {
        /* swab if needed - note that source buffer will be altered */
        tif->tif_postdecode( tif, (uint8*) data, cc );

        if (!isFillOrder(tif, td->td_fillorder) &&
            (tif->tif_flags & TIFF_NOBITREV) == 0)
            TIFFReverseBits((uint8*) data, cc);

        if (cc > 0 &&
            !TIFFAppendToStrip(tif, tile, (uint8*) data, cc))
            return ((tmsize_t) -1);
        return (cc);
    }

    sample = (uint16)(tile/td->td_stripsperimage);
    if (!(*tif->tif_preencode)(tif, sample))
        return ((tmsize_t)(-1));
        /* swab if needed - note that source buffer will be altered */
	tif->tif_postdecode( tif, (uint8*) data, cc );

	if (!(*tif->tif_encodetile)(tif, (uint8*) data, cc, sample))
		return ((tmsize_t) -1);
	if (!(*tif->tif_postencode)(tif))
		return ((tmsize_t)(-1));
	if (!isFillOrder(tif, td->td_fillorder) &&
	    (tif->tif_flags & TIFF_NOBITREV) == 0)
		TIFFReverseBits((uint8*)tif->tif_rawdata, tif->tif_rawcc);
	if (tif->tif_rawcc > 0 && !TIFFAppendToStrip(tif, tile,
	    tif->tif_rawdata, tif->tif_rawcc))
		return ((tmsize_t)(-1));
	tif->tif_rawcc = 0;
	tif->tif_rawcp = tif->tif_rawdata;
	return (cc);
}
Exemple #4
0
/*
 * 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).
 */
tsize_t
TIFFWriteEncodedTile(TIFF* tif, ttile_t tile, tdata_t data, tsize_t cc)
{
	static const char module[] = "TIFFWriteEncodedTile";
	TIFFDirectory *td;
	tsample_t sample;

	if (!WRITECHECKTILES(tif, module))
		return ((tsize_t) -1);
	td = &tif->tif_dir;
	if (tile >= td->td_nstrips) {
		TIFFErrorExt(tif->tif_clientdata, module, "%s: Tile %lu out of range, max %lu",
		    tif->tif_name, (unsigned long) tile, (unsigned long) td->td_nstrips);
		return ((tsize_t) -1);
	}
	/*
	 * Handle delayed allocation of data buffer.  This
	 * permits it to be sized more intelligently (using
	 * directory information).
	 */
	if (!BUFFERCHECK(tif))
		return ((tsize_t) -1);
	tif->tif_curtile = tile;

	tif->tif_rawcc = 0;
	tif->tif_rawcp = tif->tif_rawdata;

        if( td->td_stripbytecount[tile] > 0 )
        {
	    /* Force TIFFAppendToStrip() to consider placing data at end
               of file. */
            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 & TIFF_CODERSETUP) == 0) {
		if (!(*tif->tif_setupencode)(tif))
			return ((tsize_t) -1);
		tif->tif_flags |= TIFF_CODERSETUP;
	}
	tif->tif_flags &= ~TIFF_POSTENCODE;
	sample = (tsample_t)(tile/td->td_stripsperimage);
	if (!(*tif->tif_preencode)(tif, sample))
		return ((tsize_t) -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, (tidata_t) data, cc );

	if (!(*tif->tif_encodetile)(tif, (tidata_t) data, cc, sample))
		return ((tsize_t) 0);
	if (!(*tif->tif_postencode)(tif))
		return ((tsize_t) -1);
	if (!isFillOrder(tif, td->td_fillorder) &&
	    (tif->tif_flags & TIFF_NOBITREV) == 0)
		TIFFReverseBits((unsigned char *)tif->tif_rawdata, tif->tif_rawcc);
	if (tif->tif_rawcc > 0 && !TIFFAppendToStrip(tif, tile,
	    tif->tif_rawdata, tif->tif_rawcc))
		return ((tsize_t) -1);
	tif->tif_rawcc = 0;
	tif->tif_rawcp = tif->tif_rawdata;
	return (cc);
}