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4Changes in TIFF v3.4beta036
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12<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
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15<UL>
16<HR SIZE=4 WIDTH=65% ALIGN=left>
17<B>Current Version</B>: v3.4beta036<BR>
18<B>Previous Version</B>: <A HREF=v3.4beta035.html>v3.4beta035</A><BR>
19<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>
20<HR SIZE=4 WIDTH=65% ALIGN=left>
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23<P>
24This document describes the changes made to the software between the
25<I>previous</I> and <I>current</I> versions (see above).
26If you don't find something listed here, then it was not done in this
27timeframe, or it was not considered important enough to be mentioned.
28The following information is located here:
29<UL>
30<LI><A HREF="#configure">Changes in the software configuration</A>
31<LI><A HREF="#libtiff">Changes in libtiff</A>
32<LI><A HREF="#tools">Changes in the tools</A>
33</UL>
34
35<P><HR WIDTH=65% ALIGN=right>
36
37<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
38
39<UL>
40<LI>support was added for building the library as a DSO under HP-UX with
41 the native C compiler
42<LI>tools are now built with explicit pathnames for the DSO under IRIX,
43 Solaris, and Linux
44<LI>DSO configuration support for Linux was changed to require that
45 <B>libc.so</B> only be readable (not executable)
46</UL>
47
48<P><HR WIDTH=65% ALIGN=right>
49
50<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
51
52<UL>
53<LI>support was add for ICC: <TT>NumberOfInks</TT>, and <TT>ICCProfile</TT>
54<LI>a memory leak caused by doing <TT>TIFFSetDirectory(0)</TT> was fixed
55<LI>a bug was fixed whereby certain multi-directory files were not
56 properly handled when accessed by mapping the data into memory
57<LI>the strip chopping support is now always compiled
58 into the library with the default usage controlled by a
59 <TT>STRIPCHOP_DEFAULT</TT> configuration parameter
60<LI>the strip chopping support no longer chops tiled images
61<LI>all static strings are now const--for shared libraries
62<LI>the logic for estimating the strip size of images without
63 a <TT>StripByteCounts</TT> tag was improved by handling
64 <TT>PlanarContig</TT> images differently from <TT>PlanarSeparate</TT>
65<LI>a bug was fixed in the G3 codec when converting the Y resolution
66 of data specified in metric units
67<LI>a bug was fixed in the G3/G4 decoder for data where lines terminate
68 with a v0 code
69<LI>the <TT>TIFFRGBAImage</TT> support was changed to scale 16-bit colormap
70 entries more conservatively to avoid problems with applications
71 that do not generate fully saturated pixel values
72<LI>the LZW decoder was changed to use a more conservative scheme when
73 bounds checking the hash table array; this avoids pitfalls with
74 systems that load objects into memory in unusual locations
75<LI>a bug was fixed in <TT>TIFFPrintDirectory</TT>'s handling of the
76 <TT>InkNames</TT> tag
77<LI><TT>TIFFPrintDirectory</TT> now understands <TT>NumberOfInks</TT>
78 and ICC-related tags
79<LI>the routines for reading image data now provide more useful information
80 when a read error is encountered
81<LI>support was added for compiling with Microsoft Visual C++ 4.0
82</UL>
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84<P><HR WIDTH=65% ALIGN=right>
85
86<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
87
88<UL>
89<LI>a bug was fixed in <B>pal2rgb</B>'s colormap handling
90<LI><B>tiff2ps</B> now includes John Wehle's changes for maintaining
91 the aspect ratio
92 of images when scaling and for honoring the deadzone on a page when
93 generating PostScript Level II
94<LI><B>tiff2ps</B> does a better job guarding against the mishandling
95 of greyscale images
96<LI><B>tiff2ps</B> now correctly converts X- and Y-resolution values
97 specified in metric units
98<LI><B>tiffdump</B> has a new <TT>-m</TT> option to control the maximum
99 number of indirect
100 data values printed for a tag (by default 24)
101<LI><B>tiffdump</B> understands several new tags
102<LI><B>tiffdump</B> now shows any terminating null in ASCII strings
103<LI><B>tiffinfo</B> now suppresses strip chopping when interpreting an image;
104 a new <TT>-z</TT> option has been added to enable strip chopping
105</UL>
106
107<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
108
109<HR>
110
111<ADDRESS>
112<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
113Last updated $Date: 1999/08/09 20:21:21 $.
114</ADDRESS>
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