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113 lines
3.8 KiB
HTML
113 lines
3.8 KiB
HTML
<HTML>
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<TITLE>
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Changes in TIFF v3.4beta007
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</TITLE>
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</HEAD>
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<BODY>
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<FONT FACE="Arial, Helvetica, Sans">
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<BASEFONT SIZE=4>
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<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
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<BASEFONT SIZE=3>
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<UL>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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<B>Current Version</B>: v3.4beta007<BR>
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<B>Previous Version</B>: v3.4beta004<BR>
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<B>Master FTP Site</B>: <A HREF="ftp://ftp.sgi.com/graphics/tiff">ftp.sgi.com (192.48.153.1), directory graphics/tiff</A><BR>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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</UL>
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<P>
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This document describes the changes made to the software between the
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<I>previous</I> and <I>current</I> versions (see above).
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If you don't find something listed here, then it was not done in this
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timeframe, or it was not considered important enough to be mentioned.
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The following information is located here:
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<UL>
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<LI><A HREF="#configure">Changes in the software configuration</A>
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<LI><A HREF="#libtiff">Changes in libtiff</A>
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<LI><A HREF="#port">Changes in the portability support</A>
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<LI><A HREF="#tools">Changes in the tools</A>
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
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<UL>
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<LI>bit order was corrected for Pentium systems
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<LI>a new define, <TT>HOST_BIGENDIAN</TT>, was added for code that
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wants to statically use information about native cpu byte order
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
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<UL>
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<LI>the G3/G4 decoder was replaced by a new one that is faster and
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has smaller state tables
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<LI>Niles Ritter's client tag extension hooks were added
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<LI>a new routine <TT>TIFFCurrentDirOffset</TT> was added for
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applications that want to find out the file offset of a TIFF directory
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<LI>the calculation of the number of strips in an image was corected
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for images with certain esoteric configurations
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<LI>a potential memory leak (very unlikely) was plugged
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<LI>the <TT>TIFFReadRGBAImage</TT> support was completely rewritten
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and new, more flexible support was added for reading images into
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a fixed-format raster
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<LI>YCbCr to RGB conversion done in the <TT>TIFFReadRGBAImage</TT> support
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was optimized
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<LI>a bug in JPEG support calculation of strip size was corrected
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<LI>the LZW decoder was changed to initialize the code table to zero
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to lessen potential problems that arise when invalid data is decoded
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<LI><B>tiffcomp.h</B> is now aware of OS/2
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<LI>some function prototypes in <B>tiffio.h</B> and <B>tiffiop.h</B>
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that contained parameter
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names have been changed to avoid complaints from certain compilers
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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<A NAME="port"><B><FONT SIZE=+3>C</FONT>HANGES IN THE PORTABILITY SUPPORT:</B></A>
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<UL>
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<LI><B>Makefile.in</B> has been corrected to use the parameters
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chosen by the configure script
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
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<UL>
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<LI><TT>fax2ps</TT> has been rewritten and moved over from the user
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contributed software
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<LI>an uninitialized variable in <TT>pal2rgb</TT> has been fixed
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<LI><TT>ras2tiff</TT> now converts 24-bit RGB raster data so that
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samples are written in the proper order
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<LI><TT>tiff2ps</TT> has been updated to include fixes
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and enhancements from Alberto Accomazzi
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<LI><TT>tiffcp</TT> now has a <TT>-o</TT> option to select a directory
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by file offset
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<LI><TT>tiffinfo</TT> is now capable of displaying the raw undecoded
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image data in a file
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<LI><TT>tiffgt</TT> has been rewritten to use the new <TT>TIFFRGBAImage</TT>
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support and to handle multiple files
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</UL>
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<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
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<HR>
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<ADDRESS>
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<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
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Last updated $Date: 1999/08/09 20:21:21 $.
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</ADDRESS>
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