| 1 | /* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_flush.c,v 1.3 2000/09/15 20:52:42 warmerda 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 | |