home *** CD-ROM | disk | FTP | other *** search
- #ifndef lint
- static char rcsid[] = "$Header: /usr/people/sam/tiff/libtiff/RCS/tif_ccittrle.c,v 1.14 92/02/10 19:06:10 sam Exp $";
- #endif
-
- /*
- * Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler
- * Copyright (c) 1991, 1992 Silicon Graphics, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and
- * its documentation for any purpose is hereby granted without fee, provided
- * that (i) the above copyright notices and this permission notice appear in
- * all copies of the software and related documentation, and (ii) the names of
- * Sam Leffler and Silicon Graphics may not be used in any advertising or
- * publicity relating to the software without the specific, prior written
- * permission of Sam Leffler and Silicon Graphics.
- *
- * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- *
- * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
- * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
- * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
- * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
- */
-
- /*
- * TIFF Library.
- *
- * CCITT Group 3 1-D Modified Huffman
- * Run Length Encoding Compression Support
- */
- #include "tiffioP.h"
- #include "tif_fax3.h"
-
- TIFFInitCCITTRLE(tif)
- TIFF *tif;
- {
- TIFFInitCCITTFax3(tif); /* reuse G3 compression */
- tif->tif_preencode = NULL;
- tif->tif_postencode = NULL;
- tif->tif_encoderow = TIFFNoRowEncode;
- tif->tif_encodestrip = TIFFNoStripEncode;
- tif->tif_encodetile = TIFFNoTileEncode;
- tif->tif_close = NULL;
- /*
- * This magic causes the regular G3 decompression
- * code to not skip to the EOL mark at the end of
- * a row, and to flush input data to a byte boundary
- * at the end of each row.
- */
- tif->tif_options |= FAX3_NOEOL|FAX3_BYTEALIGN;
- return (1);
- }
-
- TIFFInitCCITTRLEW(tif)
- TIFF *tif;
- {
- TIFFInitCCITTFax3(tif); /* reuse G3 compression */
- tif->tif_preencode = NULL;
- tif->tif_postencode = NULL;
- tif->tif_encoderow = TIFFNoRowEncode;
- tif->tif_encodestrip = TIFFNoStripEncode;
- tif->tif_encodetile = TIFFNoTileEncode;
- tif->tif_close = NULL;
- /*
- * This magic causes the regular G3 decompression
- * code to not skip to the EOL mark at the end of
- * a row, and to flush input data to a byte boundary
- * at the end of each row.
- */
- tif->tif_options |= FAX3_NOEOL|FAX3_WORDALIGN;
- return (1);
- }
-