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Code Editor : v3.4beta024.html

<HTML>
<HEAD>
<TITLE>
Changes in TIFF v3.4beta024
</TITLE>
</HEAD>

<BODY>

<BASEFONT SIZE=4>
TIFF CHANGE INFORMATION
<BASEFONT SIZE=3>

<UL>
<HR SIZE=4 WIDTH=65% ALIGN=left>
Current Version: v3.4beta024 
Previous Version: <A HREF=v3.4beta018.html>v3.4beta018</A> 
Master FTP Site: <A HREF="ftp://ftp.sgi.com/graphics/tiff">ftp.sgi.com (192.48.153.1), directory graphics/tiff</A> 
<HR SIZE=4 WIDTH=65% ALIGN=left>
</UL>

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:
<UL>
<LI><A HREF="#configure">Changes in the software configuration</A>
<LI><A HREF="#libtiff">Changes in libtiff</A>
<LI><A HREF="#tools">Changes in the tools</A>
<LI><A HREF="#man">Changes in the manual pages</A>
<LI><A HREF="#contrib">Changes in the contributed software</A>
</UL>

<A NAME="configure">CHANGES IN THE SOFTWARE CONFIGURATION:</A>

<UL>
<LI>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. ``.'')
<LI>configure no longer tries to setup HTML materials
<LI>include file directories needed in building the library are now
 specified with a <TT>DIRS_LIBINC</TT> config parameter
<LI>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
<LI>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
<LI>there is beginning support for building DSO's on systems other than IRIX
<LI>configure now verifies the JPEG and zlib directory pathnames by
 checking for well-known include files in these directories
<LI>configure no longer creates the dist directory needed only
 on SGI machines (for building SGI binary distributions)
<LI>a bug was fixed whereby configure would incorrectly set
 <TT>ENVOPTS</TT> when building the software with gcc under AIX
</UL>

<A NAME="libtiff">CHANGES IN LIBTIFF:</A>

<UL>
<LI>two new typedefs were added to tiff.h</TT>: <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
<LI>the <TT>BadFaxLines</TT>, <TT>CleanFaxData</TT>, and
 <TT>ConsecutiveBadFaxLines tags are now supported with
 Group 4 compression
<LI>byte order is now correctly identified on 64-bit machines
<LI>a bug was fixed in the PackBits decoder where input data would
 appear short when a no-op run was present
<LI>a bug was fixed in calculations with very wide strips
<LI><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)
<LI><TT>TIFFDefaultTileSize</TT> now rounds tile width and height
 up to a multiple of 16 pixels, as required by the TIFF 6.0 specification
<LI>the file version.h is now built by a new mkversion
 program; this was done for portability to non-UNIX systems
<LI>support was added for the Acorn RISC OS (from Peter Greenham)
<LI>the builtin codec table is now made <TT>const</TT> when compiling
 under VMS so that libtiff can be built as a shared library
<LI>support for the PowerPC Mac (from Ruedi Boesch)
<LI>support for Window NT/Window 95 (from Scott Wagner)
</UL>

<A NAME="tools">CHANGES IN THE TOOLS:</A>

<UL>
<LI>the tools no longer include port.h
<LI>various portability fixes; mostly to eliminate implicit assumptions
 about how long <TT>int32</TT> data types are
<LI>PostScript Level II additions to <TT>tiff2ps</TT> from Bjorn Brox
<LI><TT>sgi2tiff</TT> now handles RGBA images
</UL>

<A NAME="man">CHANGES IN THE MANUAL PAGES:</A>

<UL>
<LI>the documentation has been updated to reflect the current state of
 the software
<LI>some routines have been moved to different manual pages
 to group like-routines together
</UL>

<A NAME="contrib">CHANGES IN THE CONTRIBUTED SOFTWARE:</A>

<UL>
<LI>support was added for the Acorn RISC OS (from Peter Greenham)
<LI>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)
</UL>

<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.

<HR>

<ADDRESS>
<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
Last updated $Date: 1999/08/09 20:21:21 $.
</ADDRESS>

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Code Editor : v3.4beta024.html