Changes in TIFF v3.8.0

References

Current Version

v3.8.0 (tag Release-v3-8-0)

Previous Version

v3.7.4

Master Download Site

https://download.osgeo.org/libtiff/

Master HTTP Site

http://www.simplesystems.org/libtiff/

This document describes the changes made to the software between the previous and current versions (see above). If you don't find something listed here, then it was not done in this timeframe, or it was not considered important enough to be mentioned. The following information is located here:

Major changes

  • Read-only support for custom directories (e.g. EXIF directory).

  • Preliminary support for MS MDI format.

Software configuration changes

  • Make the default strip size configurable via the --with-default-strip-size and STRIP_SIZE_DEFAULT options.

Library changes

  • tiffio.h: Added VC_EXTRALEAN definition before including windows.h, to reduce the compile time.

  • tif_jpeg.c: Improve compilation under MinGW.

  • tif_aux.c, tif_dir.c, tif_dir.h, tif_dirwrite.c, tif_print.c, tif_getimage.c: Make InkSet, NumberOfInks, DotRange and StoNits tags custom.

  • tif_aux.c, tif_dir.c, tif_dir.h, tif_print.c: Make WhitePoint tag custom.

  • tiffio.h: fixed typo that potentially resulted in redefininition of USE_WIN32_FILEIO

  • tif_dir.c, tif_dir.h, tif_print.c: Make RichTIFFIPTC, Photoshop and ICCProfile tags custom.

  • libtiff/*, contrib/*: Added 'dual-mode' error handling, enabling newer code to get context indicator in error handler and still remain compatible with older code: Done TIFFError() calls everywhere except in tools.

  • tiffinfo.c: Print EXIF directory contents if exist.

  • tif_dirinfo.c, tif_dirread.c, tif_dir.h, tif_dir.c: Custom directory read-only support.

  • tif_aux.c, tif_dirinfo.c, tif_dirread.c, tif_dir.h, tif_dir.c, tif_print.c: Make YCbCrCoefficients and ReferenceBlackWhite tags custom.

  • tif_dirread.c: One more workaround for broken StripByteCounts tag. Handle the case when StripByteCounts array filled with completely wrong values.

  • tif_dirinfo.c: Release file descriptor in case of failure in the TIFFOpenW() function as per bug Remote Sensing bugzilla #1003 [no longer available]

  • tif_dirinfo.c: Correctly use bsearch() and lfind() functions as per bug Remote Sensing bugzilla #1008 [no longer available]

  • tif_open.c, tiff.h, tiffdump.c: Incorporate preliminary support for MS MDI format. Remote Sensing bugzilla #1002 [no longer available]

  • libtiff.def, tiffiop.h, tiffio.h: Made TIFFFreeDirectory() public.

  • /tif_dirinfo.c: Make XResolution, YResolution and ResolutionUnit tags modifiable during write process. As per bug Remote Sensing bugzilla #977 [no longer available]

  • if_dirread.c: Don't try and split single strips into "0" strips in ChopUpSingleUncompressedStrip(). This happens in some degenerate cases (like 1×1 files with stripbytecounts==0 (gtsmall.jp2 embed tiff)

  • tif_fax3.c: changed 'at scanline ...' style warning/errors with incorrect use of tif_row, to 'at line ... of strip/tile ...' style.

Tools changes

Contributed software changes

  • contrib/addtiffo/*: Major upgrade by Joris to support subsampled YCbCr images in jpeg compressed TIFF files.