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Changes in TIFF v3.4beta024

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<font size="+3">T</font>IFF <font size="+2">C</font>HANGE <font size="+2">I</font>NFORMATION

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Current Version: v3.4beta024

Previous Version: v3.4beta018

Master FTP Site: ftp.sgi.com (192.48.153.1), directory graphics/tiff

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

Changes in libtiff

Changes in the tools

Changes in the manual pages

Changes in the contributed software

<font size="+3">C</font>HANGES 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 <tt>DIRS_LIBINC</tt> config parameter

configure no longer checks for alternate compilers if <tt>CC</tt>

   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

    <tt>ENVOPTS</tt> when building the software with gcc under AIX

<font size="+3">C</font>HANGES IN LIBTIFF:

two new typedefs were added to tiff.h: <tt>int8</tt>

    and <tt>uint8</tt> for signed and unsigned 8-bit quantities,

    respectively; these are currently used only by

    programs in the tools directory

the <tt>BadFaxLines</tt>, <tt>CleanFaxData</tt>, and

    <tt>ConsecutiveBadFaxLines tags are now supported with</tt>

    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

<tt>TIFFWriteEncodedStrip</tt> and <tt>TIFFWriteRawStrip</tt>

    were extended to support dynamically growing the number of

    strips in an image (must set <tt>ImageLength</tt> prior to

    making calls though)

<tt>TIFFDefaultTileSize</tt> 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 <tt>const</tt> 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)

<font size="+3">C</font>HANGES IN THE TOOLS:

the tools no longer include port.h

various portability fixes; mostly to eliminate implicit assumptions

    about how long <tt>int32</tt> data types are

PostScript Level II additions to <tt>tiff2ps</tt> from Bjorn Brox

<tt>sgi2tiff</tt> now handles RGBA images

<font size="+3">C</font>HANGES 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

<font size="+3">C</font>HANGES 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.

<address></address>

Sam Leffler / sam@engr.sgi.com

Last updated $Date: 1999/08/09 20:21:21 $.