Changes in TIFF v3.4beta036
===========================

.. table:: References
  :widths: auto

  ======================  ==========================================
  Current Version         v3.4beta036 (no release tag)
  Previous Version        :doc:`v3.4beta035 <v3.4beta035>`
  Master Download Site    `<ftp://ftp.sgi.com/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:


Software configuration changes
------------------------------

* 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
  :file:`libc.so` only be readable (not executable)


Library changes
---------------

* support was add for ICC: ``NumberOfInks``, and ``ICCProfile``
* a memory leak caused by doing ``TIFFSetDirectory(0)`` 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
  :c:macro:`STRIPCHOP_DEFAULT` 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
  ``StripByteCounts`` tag was improved by handling
  ``PlanarContig`` images differently from ``PlanarSeparate``
* 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 ``TIFFRGBAImage`` 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 :c:func:`TIFFPrintDirectory` handling of the
  ``InkNames`` tag
* :c:func:`TIFFPrintDirectory` now understands ``NumberOfInks``
  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


Tools changes
-------------

* a bug was fixed in :program:`pal2rgb` colormap handling
* :program:`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
  * does a better job guarding against the mishandling
    of greyscale images
  * now correctly converts X- and Y-resolution values
    specified in metric units
* :program:`tiffdump`:

  * has a new "``-m``" option to control the maximum number of indirect
    data values printed for a tag (by default 24)
  * understands several new tags
  * now shows any terminating null in ASCII strings

* :program:`tiffinfo` now suppresses strip chopping when interpreting an image;
  a new "``-z``" option has been added to enable strip chopping