1999-07-27 17:50:26 -04:00
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Changes in TIFF v3.4beta036
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1999-08-09 16:21:20 -04:00
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<FONT FACE="Arial, Helvetica, Sans">
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1999-07-27 17:50:26 -04:00
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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>: v3.4beta036<BR>
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<B>Previous Version</B>: <A HREF=v3.4beta035.html>v3.4beta035</A><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="#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>support was added for building the library as a DSO under HP-UX with
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the native C compiler
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<LI>tools are now built with explicit pathnames for the DSO under IRIX,
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Solaris, and Linux
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<LI>DSO configuration support for Linux was changed to require that
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<B>libc.so</B> only be readable (not executable)
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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>support was add for ICC: <TT>NumberOfInks</TT>, and <TT>ICCProfile</TT>
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<LI>a memory leak caused by doing <TT>TIFFSetDirectory(0)</TT> was fixed
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<LI>a bug was fixed whereby certain multi-directory files were not
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properly handled when accessed by mapping the data into memory
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<LI>the strip chopping support is now always compiled
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into the library with the default usage controlled by a
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<TT>STRIPCHOP_DEFAULT</TT> configuration parameter
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<LI>the strip chopping support no longer chops tiled images
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<LI>all static strings are now const--for shared libraries
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<LI>the logic for estimating the strip size of images without
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a <TT>StripByteCounts</TT> tag was improved by handling
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<TT>PlanarContig</TT> images differently from <TT>PlanarSeparate</TT>
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<LI>a bug was fixed in the G3 codec when converting the Y resolution
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of data specified in metric units
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<LI>a bug was fixed in the G3/G4 decoder for data where lines terminate
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with a v0 code
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<LI>the <TT>TIFFRGBAImage</TT> support was changed to scale 16-bit colormap
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entries more conservatively to avoid problems with applications
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that do not generate fully saturated pixel values
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<LI>the LZW decoder was changed to use a more conservative scheme when
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bounds checking the hash table array; this avoids pitfalls with
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systems that load objects into memory in unusual locations
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<LI>a bug was fixed in <TT>TIFFPrintDirectory</TT>'s handling of the
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<TT>InkNames</TT> tag
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<LI><TT>TIFFPrintDirectory</TT> now understands <TT>NumberOfInks</TT>
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and ICC-related tags
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<LI>the routines for reading image data now provide more useful information
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when a read error is encountered
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<LI>support was added for compiling with Microsoft Visual C++ 4.0
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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>a bug was fixed in <B>pal2rgb</B>'s colormap handling
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<LI><B>tiff2ps</B> now includes John Wehle's changes for maintaining
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the aspect ratio
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of images when scaling and for honoring the deadzone on a page when
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generating PostScript Level II
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<LI><B>tiff2ps</B> does a better job guarding against the mishandling
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of greyscale images
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<LI><B>tiff2ps</B> now correctly converts X- and Y-resolution values
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specified in metric units
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<LI><B>tiffdump</B> has a new <TT>-m</TT> option to control the maximum
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number of indirect
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data values printed for a tag (by default 24)
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<LI><B>tiffdump</B> understands several new tags
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<LI><B>tiffdump</B> now shows any terminating null in ASCII strings
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<LI><B>tiffinfo</B> now suppresses strip chopping when interpreting an image;
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a new <TT>-z</TT> option has been added to enable strip chopping
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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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1999-08-09 16:21:20 -04:00
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Last updated $Date: 1999-08-09 20:21:21 $.
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1999-07-27 17:50:26 -04:00
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</ADDRESS>
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</HTML>
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