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Changes in TIFF v3.4beta036

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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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Current Version: v3.4beta036

Previous Version: v3.4beta035

Master FTP Site: ftp.sgi.com (192.48.153.1), directory graphics/tiff

This document describes the changes made to the software between the

previous and current versions (see above).

If you don't find something listed here, then it was not done in this

timeframe, or it was not considered important enough to be mentioned.

The following information is located here:

Changes in the software configuration

Changes in libtiff

Changes in the tools

<font size="+3">C</font>HANGES IN THE SOFTWARE CONFIGURATION:

support was added for building the library as a DSO under HP-UX with 

    the native C compiler

tools are now built with explicit pathnames for the DSO under IRIX,

    Solaris, and Linux

DSO configuration support for Linux was changed to require that

    libc.so only be readable (not executable)

<font size="+3">C</font>HANGES IN LIBTIFF:

support was add for ICC: <tt>NumberOfInks</tt>, and <tt>ICCProfile</tt>

a memory leak caused by doing <tt>TIFFSetDirectory(0)</tt> was fixed

a bug was fixed whereby certain multi-directory files were not

    properly handled when accessed by mapping the data into memory 

the strip chopping support is now always compiled

    into the library with the default usage controlled by a

    <tt>STRIPCHOP_DEFAULT</tt> configuration parameter

the strip chopping support no longer chops tiled images

all static strings are now const--for shared libraries

the logic for estimating the strip size of images without

    a <tt>StripByteCounts</tt> tag was improved by handling

    <tt>PlanarContig</tt> images differently from <tt>PlanarSeparate</tt>

a bug was fixed in the G3 codec when converting the Y resolution

    of data specified in metric units

a bug was fixed in the G3/G4 decoder for data where lines terminate

    with a v0 code

the <tt>TIFFRGBAImage</tt> support was changed to scale 16-bit colormap

    entries more conservatively to avoid problems with applications

    that do not generate fully saturated pixel values

the LZW decoder was changed to use a more conservative scheme when

    bounds checking the hash table array; this avoids pitfalls with

    systems that load objects into memory in unusual locations

a bug was fixed in <tt>TIFFPrintDirectory</tt>'s handling of the

    <tt>InkNames</tt> tag

<tt>TIFFPrintDirectory</tt> now understands <tt>NumberOfInks</tt>

    and ICC-related tags

the routines for reading image data now provide more useful information

    when a read error is encountered

support was added for compiling with Microsoft Visual C++ 4.0

<font size="+3">C</font>HANGES IN THE TOOLS:

a bug was fixed in pal2rgb's colormap handling

tiff2ps now includes John Wehle's changes for maintaining 

    the aspect ratio

    of images when scaling and for honoring the deadzone on a page when

    generating PostScript Level II

tiff2ps does a better job guarding against the mishandling

    of greyscale images

tiff2ps now correctly converts X- and Y-resolution values

    specified in metric units

tiffdump has a new <tt>-m</tt> option to control the maximum

    number of indirect

    data values printed for a tag (by default 24)

tiffdump understands several new tags

tiffdump now shows any terminating null in ASCII strings

tiffinfo now suppresses strip chopping when interpreting an image;

    a new <tt>-z</tt> option has been added to enable strip chopping

 TIFF home page.

<address></address>

Sam Leffler / sam@engr.sgi.com

Last updated $Date: 1999/08/09 20:21:21 $.