diff options
author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2019-11-05 09:58:05 +0100 |
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committer | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2019-11-06 10:39:19 +0100 |
commit | ba1fb21bc61a2075c7fd058e7f7ba5caf7d2f400 (patch) | |
tree | b91253586ae2d1d1c6f1c35cfc6df252edf925fb /src/3rdparty/libtiff/libtiff/tif_flush.c | |
parent | 9fe1f2e918d39031852805f1add23125c061d3c3 (diff) |
Update bundled libtiff to version 4.1.05.13
[ChangeLog][Third-Party Code] Bundled libtiff was updated to version 4.1.0
Change-Id: I3e841863c5cf8588bf62b6520f34e64909394998
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Liang Qi <liang.qi@qt.io>
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_flush.c')
-rw-r--r-- | src/3rdparty/libtiff/libtiff/tif_flush.c | 118 |
1 files changed, 88 insertions, 30 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_flush.c b/src/3rdparty/libtiff/libtiff/tif_flush.c index 881fac5..f7fa207 100644 --- a/src/3rdparty/libtiff/libtiff/tif_flush.c +++ b/src/3rdparty/libtiff/libtiff/tif_flush.c @@ -45,36 +45,8 @@ TIFFFlush(TIFF* tif) && !(tif->tif_flags & TIFF_DIRTYDIRECT) && tif->tif_mode == O_RDWR ) { - uint64 *offsets=NULL, *sizes=NULL; - - if( TIFFIsTiled(tif) ) - { - if( TIFFGetField( tif, TIFFTAG_TILEOFFSETS, &offsets ) - && TIFFGetField( tif, TIFFTAG_TILEBYTECOUNTS, &sizes ) - && _TIFFRewriteField( tif, TIFFTAG_TILEOFFSETS, TIFF_LONG8, - tif->tif_dir.td_nstrips, offsets ) - && _TIFFRewriteField( tif, TIFFTAG_TILEBYTECOUNTS, TIFF_LONG8, - tif->tif_dir.td_nstrips, sizes ) ) - { - tif->tif_flags &= ~TIFF_DIRTYSTRIP; - tif->tif_flags &= ~TIFF_BEENWRITING; - return 1; - } - } - else - { - if( TIFFGetField( tif, TIFFTAG_STRIPOFFSETS, &offsets ) - && TIFFGetField( tif, TIFFTAG_STRIPBYTECOUNTS, &sizes ) - && _TIFFRewriteField( tif, TIFFTAG_STRIPOFFSETS, TIFF_LONG8, - tif->tif_dir.td_nstrips, offsets ) - && _TIFFRewriteField( tif, TIFFTAG_STRIPBYTECOUNTS, TIFF_LONG8, - tif->tif_dir.td_nstrips, sizes ) ) - { - tif->tif_flags &= ~TIFF_DIRTYSTRIP; - tif->tif_flags &= ~TIFF_BEENWRITING; - return 1; - } - } + if( TIFFForceStrileArrayWriting(tif) ) + return 1; } if ((tif->tif_flags & (TIFF_DIRTYDIRECT|TIFF_DIRTYSTRIP)) @@ -85,6 +57,92 @@ TIFFFlush(TIFF* tif) } /* + * This is an advanced writing function that must be used in a particular + * sequence, and together with TIFFDeferStrileArrayWriting(), + * to make its intended effect. Its aim is to force the writing of + * the [Strip/Tile][Offsets/ByteCounts] arrays at the end of the file, when + * they have not yet been rewritten. + * + * The typical sequence of calls is: + * TIFFOpen() + * [ TIFFCreateDirectory(tif) ] + * Set fields with calls to TIFFSetField(tif, ...) + * TIFFDeferStrileArrayWriting(tif) + * TIFFWriteCheck(tif, ...) + * TIFFWriteDirectory(tif) + * ... potentially create other directories and come back to the above directory + * TIFFForceStrileArrayWriting(tif) + * + * Returns 1 in case of success, 0 otherwise. + */ +int TIFFForceStrileArrayWriting(TIFF* tif) +{ + static const char module[] = "TIFFForceStrileArrayWriting"; + const int isTiled = TIFFIsTiled(tif); + + if (tif->tif_mode == O_RDONLY) + { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "File opened in read-only mode"); + return 0; + } + if( tif->tif_diroff == 0 ) + { + TIFFErrorExt(tif->tif_clientdata, module, + "Directory has not yet been written"); + return 0; + } + if( (tif->tif_flags & TIFF_DIRTYDIRECT) != 0 ) + { + TIFFErrorExt(tif->tif_clientdata, module, + "Directory has changes other than the strile arrays. " + "TIFFRewriteDirectory() should be called instead"); + return 0; + } + + if( !(tif->tif_flags & TIFF_DIRTYSTRIP) ) + { + if( !(tif->tif_dir.td_stripoffset_entry.tdir_tag != 0 && + tif->tif_dir.td_stripoffset_entry.tdir_count == 0 && + tif->tif_dir.td_stripoffset_entry.tdir_type == 0 && + tif->tif_dir.td_stripoffset_entry.tdir_offset.toff_long8 == 0 && + tif->tif_dir.td_stripbytecount_entry.tdir_tag != 0 && + tif->tif_dir.td_stripbytecount_entry.tdir_count == 0 && + tif->tif_dir.td_stripbytecount_entry.tdir_type == 0 && + tif->tif_dir.td_stripbytecount_entry.tdir_offset.toff_long8 == 0) ) + { + TIFFErrorExt(tif->tif_clientdata, module, + "Function not called together with " + "TIFFDeferStrileArrayWriting()"); + return 0; + } + + if (tif->tif_dir.td_stripoffset_p == NULL && !TIFFSetupStrips(tif)) + return 0; + } + + if( _TIFFRewriteField( tif, + isTiled ? TIFFTAG_TILEOFFSETS : + TIFFTAG_STRIPOFFSETS, + TIFF_LONG8, + tif->tif_dir.td_nstrips, + tif->tif_dir.td_stripoffset_p ) + && _TIFFRewriteField( tif, + isTiled ? TIFFTAG_TILEBYTECOUNTS : + TIFFTAG_STRIPBYTECOUNTS, + TIFF_LONG8, + tif->tif_dir.td_nstrips, + tif->tif_dir.td_stripbytecount_p ) ) + { + tif->tif_flags &= ~TIFF_DIRTYSTRIP; + tif->tif_flags &= ~TIFF_BEENWRITING; + return 1; + } + + return 0; +} + +/* * Flush buffered data to the file. * * Frank Warmerdam'2000: I modified this to return 1 if TIFF_BEENWRITING |