tif_flush.c
上传用户:looem2003
上传日期:2014-07-20
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文件大小:2k
- /* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_flush.c,v 1.3 2000/09/15 20:52:42 warmerda Exp $ */
- /*
- * Copyright (c) 1988-1997 Sam Leffler
- * Copyright (c) 1991-1997 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.
- */
- #include "tiffiop.h"
- int
- TIFFFlush(TIFF* tif)
- {
- if (tif->tif_mode != O_RDONLY) {
- if (!TIFFFlushData(tif))
- return (0);
- if ((tif->tif_flags & TIFF_DIRTYDIRECT) &&
- !TIFFWriteDirectory(tif))
- return (0);
- }
- return (1);
- }
- /*
- * Flush buffered data to the file.
- *
- * Frank Warmerdam'2000: I modified this to return 1 if TIFF_BEENWRITING
- * is not set, so that TIFFFlush() will proceed to write out the directory.
- * The documentation says returning 1 is an error indicator, but not having
- * been writing isn't exactly a an error. Hopefully this doesn't cause
- * problems for other people.
- */
- int
- TIFFFlushData(TIFF* tif)
- {
- if ((tif->tif_flags & TIFF_BEENWRITING) == 0)
- return (0);
- if (tif->tif_flags & TIFF_POSTENCODE) {
- tif->tif_flags &= ~TIFF_POSTENCODE;
- if (!(*tif->tif_postencode)(tif))
- return (0);
- }
- return (TIFFFlushData1(tif));
- }