sergiotarxz
/
libvips
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

SubIFD offsets should only be added if smaller pyramid layers actually exist. Otherwise results in corrupted TIFF files for images smaller than the tile size (#3058)

This commit is contained in:
Ruven 2022-09-22 14:36:27 +02:00 committed by John Cupitt
parent b0be5beb30
commit 33d44e86fb
1 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
libvips/foreign/vips2tiff.c
View File

@ -2127,11 +2127,14 @@ wtiff_page_start( Wtiff *wtiff )
*/
for( n_layers = 0, p = wtiff->layer->below; p; p = p->below )
n_layers += 1;
subifd_offsets = VIPS_ARRAY( NULL, n_layers, toff_t );
memset( subifd_offsets, 0, n_layers * sizeof( toff_t ) );
TIFFSetField( wtiff->layer->tif, TIFFTAG_SUBIFD,
n_layers, subifd_offsets );
g_free( subifd_offsets );
if( n_layers > 0 ){
subifd_offsets = VIPS_ARRAY( NULL, n_layers, toff_t );
memset( subifd_offsets, 0, n_layers * sizeof( toff_t ) );
TIFFSetField( wtiff->layer->tif, TIFFTAG_SUBIFD,
n_layers, subifd_offsets );
g_free( subifd_offsets );
}
}
return( 0 );