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| Changes in TIFF v3.4beta007 |
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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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| <UL> |
| <HR SIZE=4 WIDTH=65% ALIGN=left> |
| <B>Current Version</B>: v3.4beta007<BR> |
| <B>Previous Version</B>: v3.4beta004<BR> |
| <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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| This document describes the changes made to the software between the |
| <I>previous</I> and <I>current</I> 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="#port">Changes in the portability support</A> |
| <LI><A HREF="#tools">Changes in the tools</A> |
| </UL> |
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| <P><HR WIDTH=65% ALIGN=right> |
| |
| <A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A> |
| |
| <UL> |
| <LI>bit order was corrected for Pentium systems |
| <LI>a new define, <TT>HOST_BIGENDIAN</TT>, was added for code that |
| wants to statically use information about native cpu byte order |
| </UL> |
| |
| <P><HR WIDTH=65% ALIGN=right> |
| |
| <A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A> |
| |
| <UL> |
| <LI>the G3/G4 decoder was replaced by a new one that is faster and |
| has smaller state tables |
| <LI>Niles Ritter's client tag extension hooks were added |
| <LI>a new routine <TT>TIFFCurrentDirOffset</TT> was added for |
| applications that want to find out the file offset of a TIFF directory |
| <LI>the calculation of the number of strips in an image was corected |
| for images with certain esoteric configurations |
| <LI>a potential memory leak (very unlikely) was plugged |
| <LI>the <TT>TIFFReadRGBAImage</TT> support was completely rewritten |
| and new, more flexible support was added for reading images into |
| a fixed-format raster |
| <LI>YCbCr to RGB conversion done in the <TT>TIFFReadRGBAImage</TT> support |
| was optimized |
| <LI>a bug in JPEG support calculation of strip size was corrected |
| <LI>the LZW decoder was changed to initialize the code table to zero |
| to lessen potential problems that arise when invalid data is decoded |
| <LI><B>tiffcomp.h</B> is now aware of OS/2 |
| <LI>some function prototypes in <B>tiffio.h</B> and <B>tiffiop.h</B> |
| that contained parameter |
| names have been changed to avoid complaints from certain compilers |
| </UL> |
| |
| <P><HR WIDTH=65% ALIGN=right> |
| |
| <A NAME="port"><B><FONT SIZE=+3>C</FONT>HANGES IN THE PORTABILITY SUPPORT:</B></A> |
| |
| <UL> |
| <LI><B>Makefile.in</B> has been corrected to use the parameters |
| chosen by the configure script |
| </UL> |
| |
| <P><HR WIDTH=65% ALIGN=right> |
| |
| <A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A> |
| |
| <UL> |
| <LI><TT>fax2ps</TT> has been rewritten and moved over from the user |
| contributed software |
| <LI>an uninitialized variable in <TT>pal2rgb</TT> has been fixed |
| <LI><TT>ras2tiff</TT> now converts 24-bit RGB raster data so that |
| samples are written in the proper order |
| <LI><TT>tiff2ps</TT> has been updated to include fixes |
| and enhancements from Alberto Accomazzi |
| <LI><TT>tiffcp</TT> now has a <TT>-o</TT> option to select a directory |
| by file offset |
| <LI><TT>tiffinfo</TT> is now capable of displaying the raw undecoded |
| image data in a file |
| <LI><TT>tiffgt</TT> has been rewritten to use the new <TT>TIFFRGBAImage</TT> |
| support and to handle multiple files |
| </UL> |
| |
| <A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR> |
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| <ADDRESS> |
| <A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A> |
| Last updated $Date: 2016-09-25 20:05:45 $. |
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