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| 2 | <HEAD>
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| 3 | <TITLE>
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| 4 | Changes in TIFF v3.4beta036
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| 5 | </TITLE>
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| 6 | </HEAD>
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| 7 |
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| 8 | <BODY>
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| 9 | <FONT FACE="Arial, Helvetica, Sans">
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| 10 |
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| 11 | <BASEFONT SIZE=4>
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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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| 13 | <BASEFONT SIZE=3>
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| 14 |
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| 15 | <UL>
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| 16 | <HR SIZE=4 WIDTH=65% ALIGN=left>
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| 17 | <B>Current Version</B>: v3.4beta036<BR>
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| 18 | <B>Previous Version</B>: <A HREF=v3.4beta035.html>v3.4beta035</A><BR>
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| 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>
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| 20 | <HR SIZE=4 WIDTH=65% ALIGN=left>
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| 21 | </UL>
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| 22 |
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| 23 | <P>
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| 24 | This document describes the changes made to the software between the
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| 25 | <I>previous</I> and <I>current</I> versions (see above).
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| 26 | If you don't find something listed here, then it was not done in this
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| 27 | timeframe, or it was not considered important enough to be mentioned.
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| 28 | The following information is located here:
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| 29 | <UL>
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| 30 | <LI><A HREF="#configure">Changes in the software configuration</A>
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| 31 | <LI><A HREF="#libtiff">Changes in libtiff</A>
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| 32 | <LI><A HREF="#tools">Changes in the tools</A>
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| 33 | </UL>
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| 34 |
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| 35 | <P><HR WIDTH=65% ALIGN=right>
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| 36 |
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| 37 | <A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
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| 38 |
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| 39 | <UL>
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| 40 | <LI>support was added for building the library as a DSO under HP-UX with
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| 41 | the native C compiler
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| 42 | <LI>tools are now built with explicit pathnames for the DSO under IRIX,
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| 43 | Solaris, and Linux
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| 44 | <LI>DSO configuration support for Linux was changed to require that
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| 45 | <B>libc.so</B> only be readable (not executable)
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| 46 | </UL>
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| 47 |
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| 48 | <P><HR WIDTH=65% ALIGN=right>
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| 49 |
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| 50 | <A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
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| 51 |
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| 52 | <UL>
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| 53 | <LI>support was add for ICC: <TT>NumberOfInks</TT>, and <TT>ICCProfile</TT>
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| 54 | <LI>a memory leak caused by doing <TT>TIFFSetDirectory(0)</TT> was fixed
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| 55 | <LI>a bug was fixed whereby certain multi-directory files were not
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| 56 | properly handled when accessed by mapping the data into memory
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| 57 | <LI>the strip chopping support is now always compiled
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| 58 | into the library with the default usage controlled by a
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| 59 | <TT>STRIPCHOP_DEFAULT</TT> configuration parameter
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| 60 | <LI>the strip chopping support no longer chops tiled images
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| 61 | <LI>all static strings are now const--for shared libraries
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| 62 | <LI>the logic for estimating the strip size of images without
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| 63 | a <TT>StripByteCounts</TT> tag was improved by handling
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| 64 | <TT>PlanarContig</TT> images differently from <TT>PlanarSeparate</TT>
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| 65 | <LI>a bug was fixed in the G3 codec when converting the Y resolution
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| 66 | of data specified in metric units
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| 67 | <LI>a bug was fixed in the G3/G4 decoder for data where lines terminate
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| 68 | with a v0 code
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| 69 | <LI>the <TT>TIFFRGBAImage</TT> support was changed to scale 16-bit colormap
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| 70 | entries more conservatively to avoid problems with applications
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| 71 | that do not generate fully saturated pixel values
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| 72 | <LI>the LZW decoder was changed to use a more conservative scheme when
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| 73 | bounds checking the hash table array; this avoids pitfalls with
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| 74 | systems that load objects into memory in unusual locations
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| 75 | <LI>a bug was fixed in <TT>TIFFPrintDirectory</TT>'s handling of the
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| 76 | <TT>InkNames</TT> tag
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| 77 | <LI><TT>TIFFPrintDirectory</TT> now understands <TT>NumberOfInks</TT>
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| 78 | and ICC-related tags
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| 79 | <LI>the routines for reading image data now provide more useful information
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| 80 | when a read error is encountered
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| 81 | <LI>support was added for compiling with Microsoft Visual C++ 4.0
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| 82 | </UL>
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| 83 |
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| 84 | <P><HR WIDTH=65% ALIGN=right>
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| 85 |
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| 86 | <A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
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| 87 |
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| 88 | <UL>
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| 89 | <LI>a bug was fixed in <B>pal2rgb</B>'s colormap handling
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| 90 | <LI><B>tiff2ps</B> now includes John Wehle's changes for maintaining
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| 91 | the aspect ratio
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| 92 | of images when scaling and for honoring the deadzone on a page when
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| 93 | generating PostScript Level II
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| 94 | <LI><B>tiff2ps</B> does a better job guarding against the mishandling
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| 95 | of greyscale images
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| 96 | <LI><B>tiff2ps</B> now correctly converts X- and Y-resolution values
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| 97 | specified in metric units
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| 98 | <LI><B>tiffdump</B> has a new <TT>-m</TT> option to control the maximum
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| 99 | number of indirect
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| 100 | data values printed for a tag (by default 24)
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| 101 | <LI><B>tiffdump</B> understands several new tags
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| 102 | <LI><B>tiffdump</B> now shows any terminating null in ASCII strings
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| 103 | <LI><B>tiffinfo</B> now suppresses strip chopping when interpreting an image;
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| 104 | a new <TT>-z</TT> option has been added to enable strip chopping
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| 105 | </UL>
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| 106 |
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| 107 | <A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
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| 108 |
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| 109 | <HR>
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| 110 |
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| 111 | <ADDRESS>
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| 112 | <A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
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| 113 | Last updated $Date: 1999/08/09 20:21:21 $.
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| 114 | </ADDRESS>
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| 115 |
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| 116 | </BODY>
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| 117 | </HTML>
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