TIFF CHANGE INFORMATION
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:
CHANGES IN THE SOFTWARE CONFIGURATION:
- It is now possible to setup the software to build only the
library; configure reconizes this is the intent when the
VERSION, tiff.alpha, and tif_version.c
files are in the local directory (i.e. ``.'')
- configure no longer tries to setup HTML materials
- include file directories needed in building the library are now
specified with a DIRS_LIBINC config parameter
- configure no longer checks for alternate compilers if CC
is set; if the specified compiler is not found or is not appropriate
the configuration procedure aborts
- the port.h file generated by configure is now used only by
the library and as such as have been moved to the libtiff
directory
- there is beginning support for building DSO's on systems other than IRIX
- configure now verifies the JPEG and zlib directory pathnames by
checking for well-known include files in these directories
- configure no longer creates the dist directory needed only
on SGI machines (for building SGI binary distributions)
- a bug was fixed whereby configure would incorrectly set
ENVOPTS when building the software with gcc under AIX
CHANGES IN LIBTIFF:
- two new typedefs were added to tiff.h: int8
and uint8 for signed and unsigned 8-bit quantities,
respectively; these are currently used only by
programs in the tools directory
- the BadFaxLines, CleanFaxData, and
ConsecutiveBadFaxLines
tags are now supported with
Group 4 compression
- byte order is now correctly identified on 64-bit machines
- a bug was fixed in the PackBits decoder where input data would
appear short when a no-op run was present
- a bug was fixed in calculations with very wide strips
- TIFFWriteEncodedStrip and TIFFWriteRawStrip
were extended to support dynamically growing the number of
strips in an image (must set ImageLength prior to
making calls though)
- TIFFDefaultTileSize now rounds tile width and height
up to a multiple of 16 pixels, as required by the TIFF 6.0 specification
- the file version.h is now built by a new mkversion
program; this was done for portability to non-UNIX systems
- support was added for the Acorn RISC OS (from Peter Greenham)
- the builtin codec table is now made const when compiling
under VMS so that libtiff can be built as a shared library
- support for the PowerPC Mac (from Ruedi Boesch)
- support for Window NT/Window 95 (from Scott Wagner)
CHANGES IN THE TOOLS:
- the tools no longer include port.h
- various portability fixes; mostly to eliminate implicit assumptions
about how long int32 data types are
- PostScript Level II additions to tiff2ps from Bjorn Brox
- sgi2tiff now handles RGBA images
CHANGES IN THE MANUAL PAGES:
- the documentation has been updated to reflect the current state of
the software
- some routines have been moved to different manual pages
to group like-routines together
CHANGES IN THE CONTRIBUTED SOFTWARE:
- support was added for the Acorn RISC OS (from Peter Greenham)
- support for Windows NT/Windows 95 contributed for a previous
version of this software was sort of incorporated (it's broken
right now) (from Scott Wagner)
TIFF home page.
Sam Leffler / sam@engr.sgi.com
Last updated $Date: 1997/04/04 21:09:46 $.