✏ 编辑: v3.4beta036.html

<HTML>
<HEAD>
<TITLE>
Changes in TIFF v3.4beta036
</TITLE>
</HEAD>

<BODY>

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

<UL>
<HR SIZE=4 WIDTH=65% ALIGN=left>
Current Version: v3.4beta036 
Previous Version: <A HREF=v3.4beta035.html>v3.4beta035</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>
</UL>

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

<UL>
<LI>support was added for building the library as a DSO under HP-UX with 
 the native C compiler
<LI>tools are now built with explicit pathnames for the DSO under IRIX,
 Solaris, and Linux
<LI>DSO configuration support for Linux was changed to require that
 libc.so only be readable (not executable)
</UL>

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

<UL>
<LI>support was add for ICC: <TT>NumberOfInks</TT>, and <TT>ICCProfile</TT>
<LI>a memory leak caused by doing <TT>TIFFSetDirectory(0)</TT> was fixed
<LI>a bug was fixed whereby certain multi-directory files were not
 properly handled when accessed by mapping the data into memory 
<LI>the strip chopping support is now always compiled
 into the library with the default usage controlled by a
 <TT>STRIPCHOP_DEFAULT</TT> configuration parameter
<LI>the strip chopping support no longer chops tiled images
<LI>all static strings are now const--for shared libraries
<LI>the logic for estimating the strip size of images without
 a <TT>StripByteCounts</TT> tag was improved by handling
 <TT>PlanarContig</TT> images differently from <TT>PlanarSeparate</TT>
<LI>a bug was fixed in the G3 codec when converting the Y resolution
 of data specified in metric units
<LI>a bug was fixed in the G3/G4 decoder for data where lines terminate
 with a v0 code
<LI>the <TT>TIFFRGBAImage</TT> support was changed to scale 16-bit colormap
 entries more conservatively to avoid problems with applications
 that do not generate fully saturated pixel values
<LI>the LZW decoder was changed to use a more conservative scheme when
 bounds checking the hash table array; this avoids pitfalls with
 systems that load objects into memory in unusual locations
<LI>a bug was fixed in <TT>TIFFPrintDirectory</TT>'s handling of the
 <TT>InkNames</TT> tag
<LI><TT>TIFFPrintDirectory</TT> now understands <TT>NumberOfInks</TT>
 and ICC-related tags
<LI>the routines for reading image data now provide more useful information
 when a read error is encountered
<LI>support was added for compiling with Microsoft Visual C++ 4.0
</UL>

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

<UL>
<LI>a bug was fixed in pal2rgb's colormap handling
<LI>tiff2ps now includes John Wehle's changes for maintaining 
 the aspect ratio
 of images when scaling and for honoring the deadzone on a page when
 generating PostScript Level II
<LI>tiff2ps does a better job guarding against the mishandling
 of greyscale images
<LI>tiff2ps now correctly converts X- and Y-resolution values
 specified in metric units
<LI>tiffdump has a new <TT>-m</TT> option to control the maximum
 number of indirect
 data values printed for a tag (by default 24)
<LI>tiffdump understands several new tags
<LI>tiffdump now shows any terminating null in ASCII strings
<LI>tiffinfo now suppresses strip chopping when interpreting an image;
 a new <TT>-z</TT> option has been added to enable strip chopping
</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>

</BODY>
</HTML>

[X] 取消