| 1 | /* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_flush.c,v 1.3 2000/09/15 20:52:42 warmerda Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Copyright (c) 1988-1997 Sam Leffler
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| 5 | * Copyright (c) 1991-1997 Silicon Graphics, Inc.
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| 6 | *
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| 7 | * Permission to use, copy, modify, distribute, and sell this software and
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| 8 | * its documentation for any purpose is hereby granted without fee, provided
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| 9 | * that (i) the above copyright notices and this permission notice appear in
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| 10 | * all copies of the software and related documentation, and (ii) the names of
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| 11 | * Sam Leffler and Silicon Graphics may not be used in any advertising or
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| 12 | * publicity relating to the software without the specific, prior written
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| 13 | * permission of Sam Leffler and Silicon Graphics.
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| 14 | *
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| 15 | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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| 16 | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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| 17 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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| 18 | *
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| 19 | * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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| 20 | * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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| 21 | * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 22 | * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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| 23 | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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| 24 | * OF THIS SOFTWARE.
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| 25 | */
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| 26 |
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| 27 | /*
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| 28 | * TIFF Library.
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| 29 | */
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| 30 | #include "tiffiop.h"
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| 31 |
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| 32 | int
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| 33 | TIFFFlush(TIFF* tif)
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| 34 | {
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| 35 |
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| 36 | if (tif->tif_mode != O_RDONLY) {
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| 37 | if (!TIFFFlushData(tif))
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| 38 | return (0);
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| 39 | if ((tif->tif_flags & TIFF_DIRTYDIRECT) &&
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| 40 | !TIFFWriteDirectory(tif))
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| 41 | return (0);
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| 42 | }
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| 43 | return (1);
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| 44 | }
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| 45 |
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| 46 | /*
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| 47 | * Flush buffered data to the file.
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| 48 | *
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| 49 | * Frank Warmerdam'2000: I modified this to return 1 if TIFF_BEENWRITING
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| 50 | * is not set, so that TIFFFlush() will proceed to write out the directory.
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| 51 | * The documentation says returning 1 is an error indicator, but not having
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| 52 | * been writing isn't exactly a an error. Hopefully this doesn't cause
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| 53 | * problems for other people.
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| 54 | */
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| 55 | int
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| 56 | TIFFFlushData(TIFF* tif)
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| 57 | {
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| 58 | if ((tif->tif_flags & TIFF_BEENWRITING) == 0)
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| 59 | return (0);
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| 60 | if (tif->tif_flags & TIFF_POSTENCODE) {
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| 61 | tif->tif_flags &= ~TIFF_POSTENCODE;
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| 62 | if (!(*tif->tif_postencode)(tif))
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| 63 | return (0);
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| 64 | }
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| 65 | return (TIFFFlushData1(tif));
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| 66 | }
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| 67 |
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