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| 2 | <HEAD>
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| 3 | <TITLE>
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| 4 | Changes in TIFF v3.4beta007
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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>: v3.4beta007<BR>
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| 18 | <B>Previous Version</B>: v3.4beta004<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="#port">Changes in the portability support</A>
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| 33 | <LI><A HREF="#tools">Changes in the tools</A>
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| 34 | </UL>
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| 35 |
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| 36 | <P><HR WIDTH=65% ALIGN=right>
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| 37 |
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| 38 | <A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
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| 39 |
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| 40 | <UL>
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| 41 | <LI>bit order was corrected for Pentium systems
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| 42 | <LI>a new define, <TT>HOST_BIGENDIAN</TT>, was added for code that
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| 43 | wants to statically use information about native cpu byte order
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| 44 | </UL>
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| 45 |
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| 46 | <P><HR WIDTH=65% ALIGN=right>
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| 47 |
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| 48 | <A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
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| 49 |
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| 50 | <UL>
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| 51 | <LI>the G3/G4 decoder was replaced by a new one that is faster and
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| 52 | has smaller state tables
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| 53 | <LI>Niles Ritter's client tag extension hooks were added
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| 54 | <LI>a new routine <TT>TIFFCurrentDirOffset</TT> was added for
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| 55 | applications that want to find out the file offset of a TIFF directory
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| 56 | <LI>the calculation of the number of strips in an image was corected
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| 57 | for images with certain esoteric configurations
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| 58 | <LI>a potential memory leak (very unlikely) was plugged
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| 59 | <LI>the <TT>TIFFReadRGBAImage</TT> support was completely rewritten
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| 60 | and new, more flexible support was added for reading images into
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| 61 | a fixed-format raster
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| 62 | <LI>YCbCr to RGB conversion done in the <TT>TIFFReadRGBAImage</TT> support
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| 63 | was optimized
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| 64 | <LI>a bug in JPEG support calculation of strip size was corrected
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| 65 | <LI>the LZW decoder was changed to initialize the code table to zero
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| 66 | to lessen potential problems that arise when invalid data is decoded
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| 67 | <LI><B>tiffcomp.h</B> is now aware of OS/2
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| 68 | <LI>some function prototypes in <B>tiffio.h</B> and <B>tiffiop.h</B>
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| 69 | that contained parameter
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| 70 | names have been changed to avoid complaints from certain compilers
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| 71 | </UL>
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| 72 |
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| 73 | <P><HR WIDTH=65% ALIGN=right>
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| 74 |
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| 75 | <A NAME="port"><B><FONT SIZE=+3>C</FONT>HANGES IN THE PORTABILITY SUPPORT:</B></A>
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| 76 |
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| 77 | <UL>
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| 78 | <LI><B>Makefile.in</B> has been corrected to use the parameters
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| 79 | chosen by the configure script
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| 80 | </UL>
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| 81 |
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| 82 | <P><HR WIDTH=65% ALIGN=right>
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| 83 |
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| 84 | <A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
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| 85 |
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| 86 | <UL>
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| 87 | <LI><TT>fax2ps</TT> has been rewritten and moved over from the user
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| 88 | contributed software
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| 89 | <LI>an uninitialized variable in <TT>pal2rgb</TT> has been fixed
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| 90 | <LI><TT>ras2tiff</TT> now converts 24-bit RGB raster data so that
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| 91 | samples are written in the proper order
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| 92 | <LI><TT>tiff2ps</TT> has been updated to include fixes
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| 93 | and enhancements from Alberto Accomazzi
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| 94 | <LI><TT>tiffcp</TT> now has a <TT>-o</TT> option to select a directory
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| 95 | by file offset
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| 96 | <LI><TT>tiffinfo</TT> is now capable of displaying the raw undecoded
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| 97 | image data in a file
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| 98 | <LI><TT>tiffgt</TT> has been rewritten to use the new <TT>TIFFRGBAImage</TT>
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| 99 | support and to handle multiple files
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| 100 | </UL>
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| 101 |
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| 102 | <A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
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| 103 |
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| 104 | <HR>
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| 105 |
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| 106 | <ADDRESS>
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| 107 | <A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
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| 108 | Last updated $Date: 1999/08/09 20:21:21 $.
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| 109 | </ADDRESS>
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| 110 |
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| 111 | </BODY>
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| 112 | </HTML>
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