src/tiff/html/v3.4beta007.html

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   4 Changes in TIFF v3.4beta007
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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>: v3.4beta007<BR>
  18 <B>Previous Version</B>: v3.4beta004<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>
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  23 <P>
  24 This document describes the changes made to the software between the
  25 <I>previous</I> and <I>current</I> versions (see above).
  26 If you don't find something listed here, then it was not done in this
  27 timeframe, or it was not considered important enough to be mentioned.
  28 The 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="#port">Changes in the portability support</A>
  33 <LI><A HREF="#tools">Changes in the tools</A>
  34 </UL>
  35
  36 <P><HR WIDTH=65% ALIGN=right>
  37
  38 <A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
  39
  40 <UL>
  41 <LI>bit order was corrected for Pentium systems
  42 <LI>a new define, <TT>HOST_BIGENDIAN</TT>, was added for code that
  43    wants to statically use information about native cpu byte order
  44 </UL>
  45
  46 <P><HR WIDTH=65% ALIGN=right>
  47
  48 <A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
  49
  50 <UL>
  51 <LI>the G3/G4 decoder was replaced by a new one that is faster and
  52    has smaller state tables
  53 <LI>Niles Ritter's client tag extension hooks were added
  54 <LI>a new routine <TT>TIFFCurrentDirOffset</TT> was added for
  55    applications that want to find out the file offset of a TIFF directory
  56 <LI>the calculation of the number of strips in an image was corected
  57    for images with certain esoteric configurations
  58 <LI>a potential memory leak (very unlikely) was plugged
  59 <LI>the <TT>TIFFReadRGBAImage</TT> support was completely rewritten
  60    and new, more flexible support was added for reading images into
  61    a fixed-format raster
  62 <LI>YCbCr to RGB conversion done in the <TT>TIFFReadRGBAImage</TT> support
  63    was optimized
  64 <LI>a bug in JPEG support calculation of strip size was corrected
  65 <LI>the LZW decoder was changed to initialize the code table to zero
  66    to lessen potential problems that arise when invalid data is decoded
  67 <LI><B>tiffcomp.h</B> is now aware of OS/2
  68 <LI>some function prototypes in <B>tiffio.h</B> and <B>tiffiop.h</B>
  69    that contained parameter
  70    names have been changed to avoid complaints from certain compilers
  71 </UL>
  72
  73 <P><HR WIDTH=65% ALIGN=right>
  74
  75 <A NAME="port"><B><FONT SIZE=+3>C</FONT>HANGES IN THE PORTABILITY SUPPORT:</B></A>
  76
  77 <UL>
  78 <LI><B>Makefile.in</B> has been corrected to use the parameters
  79    chosen by the configure script
  80 </UL>
  81
  82 <P><HR WIDTH=65% ALIGN=right>
  83
  84 <A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
  85
  86 <UL>
  87 <LI><TT>fax2ps</TT> has been rewritten and moved over from the user
  88    contributed software
  89 <LI>an uninitialized variable in <TT>pal2rgb</TT> has been fixed
  90 <LI><TT>ras2tiff</TT> now converts 24-bit RGB raster data so that
  91    samples are written in the proper order
  92 <LI><TT>tiff2ps</TT> has been updated to include fixes
  93     and enhancements from Alberto Accomazzi
  94 <LI><TT>tiffcp</TT> now has a <TT>-o</TT> option to select a directory
  95     by file offset
  96 <LI><TT>tiffinfo</TT> is now capable of displaying the raw undecoded
  97     image data in a file
  98 <LI><TT>tiffgt</TT> has been rewritten to use the new <TT>TIFFRGBAImage</TT>
  99    support and to handle multiple files
 100 </UL>
 101
 102 <A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
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 106 <ADDRESS>
 107 <A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
 108 Last updated $Date: 1999/08/09 20:21:21 $.
 109 </ADDRESS>
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