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tif_flush.c
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1 /* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_flush.c,v 1.3.2.1 2010-06-08 18:50:42 bfriesen Exp $ */
2
3 /*
4 * Copyright (c) 1988-1997 Sam Leffler
5 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
6 *
7 * Permission to use, copy, modify, distribute, and sell this software and
8 * its documentation for any purpose is hereby granted without fee, provided
9 * that (i) the above copyright notices and this permission notice appear in
10 * all copies of the software and related documentation, and (ii) the names of
11 * Sam Leffler and Silicon Graphics may not be used in any advertising or
12 * publicity relating to the software without the specific, prior written
13 * permission of Sam Leffler and Silicon Graphics.
14 *
15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
18 *
19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 */
26
27 /*
28 * TIFF Library.
29 */
30 #include "tiffiop.h"
31
32 int
33 TIFFFlush(TIFF* tif)
34 {
35
36 if (tif->tif_mode != O_RDONLY) {
37 if (!TIFFFlushData(tif))
38 return (0);
39 if ((tif->tif_flags & TIFF_DIRTYDIRECT) &&
40 !TIFFWriteDirectory(tif))
41 return (0);
42 }
43 return (1);
44 }
45
46 /*
47 * Flush buffered data to the file.
48 *
49 * Frank Warmerdam'2000: I modified this to return 1 if TIFF_BEENWRITING
50 * is not set, so that TIFFFlush() will proceed to write out the directory.
51 * The documentation says returning 1 is an error indicator, but not having
52 * been writing isn't exactly a an error. Hopefully this doesn't cause
53 * problems for other people.
54 */
55 int
56 TIFFFlushData(TIFF* tif)
57 {
58 if ((tif->tif_flags & TIFF_BEENWRITING) == 0)
59 return (0);
60 if (tif->tif_flags & TIFF_POSTENCODE) {
61 tif->tif_flags &= ~TIFF_POSTENCODE;
62 if (!(*tif->tif_postencode)(tif))
63 return (0);
64 }
65 return (TIFFFlushData1(tif));
66 }
67
68 /*
69 * Local Variables:
70 * mode: c
71 * c-basic-offset: 8
72 * fill-column: 78
73 * End:
74 */
TIFF_BEENWRITING
#define TIFF_BEENWRITING
Definition: tiffiop.h:112
tiffiop.h
TIFF_DIRTYDIRECT
#define TIFF_DIRTYDIRECT
Definition: tiffiop.h:109
tiff
Definition: tiffiop.h:102
TIFFFlushData
int TIFFFlushData(TIFF *tif)
Definition: tif_flush.c:56
tiff::tif_mode
int tif_mode
Definition: tiffiop.h:105
TIFFWriteDirectory
int TIFFWriteDirectory(TIFF *tif)
Definition: tif_dirwrite.c:414
tiff::tif_flags
uint32 tif_flags
Definition: tiffiop.h:106
TIFF_POSTENCODE
#define TIFF_POSTENCODE
Definition: tiffiop.h:118
tiff::tif_postencode
TIFFBoolMethod tif_postencode
Definition: tiffiop.h:158
TIFFFlush
int TIFFFlush(TIFF *tif)
Definition: tif_flush.c:33
TIFFFlushData1
int TIFFFlushData1(TIFF *tif)
Definition: tif_write.c:682