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

enable strip chopping on TIFF load

Browse Source 
see https://github.com/libvips/libvips/discussions/2322

thanks DavidStorm
This commit is contained in:
John Cupitt 2021-06-28 12:30:04 +01:00
parent 067d603182
commit 1b3dda5b24
2 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
ChangeLog
View File

@ -3,6 +3,7 @@
- update libtool support in configure.ac - update libtool support in configure.ac
- more startup info if VIPS_INFO is set - more startup info if VIPS_INFO is set
- command-line programs set glib prgname (no longer set for you by VIPS_INIT) - command-line programs set glib prgname (no longer set for you by VIPS_INIT)
- enable strip chopping for TIFF read [DavidStorm]
14/8/20 started 8.11 14/8/20 started 8.11
- add vips_jpegload_source() and vips_svgload_source() to public C API - add vips_jpegload_source() and vips_svgload_source() to public C API

9
libvips/foreign/tiff.c
View File

@ -212,7 +212,14 @@ vips__tiff_openin_source( VipsSource *source )
if( vips_source_rewind( source ) ) if( vips_source_rewind( source ) )
return( NULL ); return( NULL );
if( !(tiff = TIFFClientOpen( "source input", "rm", /* Disable memory mapped input -- it chews up VM and the performance
* gain is very small.
*
* C enables strip chopping: very large uncompressed strips are
* chopped into c. 8kb chunks. This can reduce peak memory use for
* this type of file.
*/
if( !(tiff = TIFFClientOpen( "source input", "rmC",
(thandle_t) source, (thandle_t) source,
openin_source_read, openin_source_read,
openin_source_write, openin_source_write,