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<TITLE>
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Changes in TIFF v3.4beta036
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</TITLE>
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<BODY>
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<FONT FACE="Arial, Helvetica, Sans">
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<BASEFONT SIZE=4>
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<FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION
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<BASEFONT SIZE=3>
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Current Version: v3.4beta036
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Previous Version: v3.4beta035
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Master FTP Site: ftp.sgi.com (192.48.153.1), directory graphics/tiff
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This document describes the changes made to the software between the
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previous and current versions (see above).
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If you don't find something listed here, then it was not done in this
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timeframe, or it was not considered important enough to be mentioned.
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The following information is located here:
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Changes in the software configuration
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Changes in libtiff
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Changes in the tools
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<FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:
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support was added for building the library as a DSO under HP-UX with
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the native C compiler
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tools are now built with explicit pathnames for the DSO under IRIX,
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Solaris, and Linux
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DSO configuration support for Linux was changed to require that
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libc.so only be readable (not executable)
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<FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:
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support was add for ICC: <TT>NumberOfInks</TT>, and <TT>ICCProfile</TT>
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a memory leak caused by doing <TT>TIFFSetDirectory(0)</TT> was fixed
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a bug was fixed whereby certain multi-directory files were not
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properly handled when accessed by mapping the data into memory
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the strip chopping support is now always compiled
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into the library with the default usage controlled by a
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<TT>STRIPCHOP_DEFAULT</TT> configuration parameter
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the strip chopping support no longer chops tiled images
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all static strings are now const--for shared libraries
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the logic for estimating the strip size of images without
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a <TT>StripByteCounts</TT> tag was improved by handling
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<TT>PlanarContig</TT> images differently from <TT>PlanarSeparate</TT>
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a bug was fixed in the G3 codec when converting the Y resolution
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of data specified in metric units
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a bug was fixed in the G3/G4 decoder for data where lines terminate
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with a v0 code
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the <TT>TIFFRGBAImage</TT> support was changed to scale 16-bit colormap
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entries more conservatively to avoid problems with applications
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that do not generate fully saturated pixel values
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the LZW decoder was changed to use a more conservative scheme when
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bounds checking the hash table array; this avoids pitfalls with
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systems that load objects into memory in unusual locations
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a bug was fixed in <TT>TIFFPrintDirectory</TT>'s handling of the
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<TT>InkNames</TT> tag
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<TT>TIFFPrintDirectory</TT> now understands <TT>NumberOfInks</TT>
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and ICC-related tags
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the routines for reading image data now provide more useful information
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when a read error is encountered
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support was added for compiling with Microsoft Visual C++ 4.0
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<FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:
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a bug was fixed in pal2rgb's colormap handling
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tiff2ps now includes John Wehle's changes for maintaining
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the aspect ratio
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of images when scaling and for honoring the deadzone on a page when
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generating PostScript Level II
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tiff2ps does a better job guarding against the mishandling
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of greyscale images
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tiff2ps now correctly converts X- and Y-resolution values
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specified in metric units
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tiffdump has a new <TT>-m</TT> option to control the maximum
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number of indirect
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data values printed for a tag (by default 24)
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tiffdump understands several new tags
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tiffdump now shows any terminating null in ASCII strings
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tiffinfo now suppresses strip chopping when interpreting an image;
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a new <TT>-z</TT> option has been added to enable strip chopping
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 TIFF home page.
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<ADDRESS>
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Sam Leffler / sam@engr.sgi.com
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Last updated $Date: 1999/08/09 20:21:21 $.
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</ADDRESS>
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</BODY>
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</HTML>
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