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134 lines
5.1 KiB
Plaintext
134 lines
5.1 KiB
Plaintext
Note: to change the version, you have to hack both Makefile and lib/Makefile.
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Version 3.0:
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------------
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New features:
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* Incorporated Sirtaj Kang's changes to make both static and shared libs.
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* All the utility and library docs are HTML now.
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* The library and relevant utilities are now fully GIF89-aware.
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* Functions for drawing text and boxes on saved images are documented.
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* The distribution is now issued under a simple X-Consortium-style license.
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* Can now generate package RPMs and LSM automatically.
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* Home page with Web-acessible documentation at http://www.ccil.org/~esr/giflib
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Bug fixes:
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* Fix giftext to not core dump on a null extension record.
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* Incorporate Philip VanBaren's change to prevent a core dump in gifasm.
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Version 2.3:
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-------------
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1. Fixed a core-dump bug in gifcomb revealed by the ELF environment in Linux
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1.2.13.
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Version 2.2b:
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------------
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1. Added gifburst tool.
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Version 2.2
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-----------
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1. Linux is supported.
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Version 2.1
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-----------
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1. Added the gifovly tool, which supports making a composite from several GIF
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images.
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2. Used gifovly to implement a full-fledged pasteup program in shell. It's
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called gifcompose and lives in the util directory.
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3. Added a copy of the GIF89 standard to the doc directory (gif89.txt);
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also a description of the preferred compression method (lzgif.txt).
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Version 2.0
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-----------
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With this version, development was taken over from Gershon Elber by Eric
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S. Raymond <esr@snark.thyrsus.com>. Note that I, esr, have pretty much
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adhered to Gershon's coding style, even though it's quite baroque and DOS-
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headed by my standards.
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Library Improvements
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1. New DGifSlurp() and EGifSpew() library entry points allow all GIF-bashing
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to be done in core on machines with sufficient memory. Writing code to
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slice'n'dice multiple GIFs in non-sequential ways is now much easier (send
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kudos and brickbats to esr, small unmarked bills preferred).
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2. The interface has changed somewhat. Members in the GifFileType structure
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have been renamed and regrouped. This was required for support of the
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SavedImages member (which enables the new functions mentioned in 1). Also,
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there is a new data type for allocated color maps and routines to handle
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it conveniently.
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3. Some minor bugs have been fixed. Most notably, the DGif code now correctly
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handles the possibility of more than one code block per extension record,
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as per the GIF spec. It's not clear, however, that anyone ever has or
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ever will use this feature for anything...
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New Tools and Options
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4. A brand new, ultra-spiffy tool `icon2gif' is included. It assembles named
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GIFs with editable text color map & icon raster representations to produce
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multi-image GIFs usable as graphical resource files. It can also dump most
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GIFs in the same text-only form it parses. This makes it easy to edit GIFs
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even if you don't have a graphics editor.
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5. The gifclip utility supports a new `-c' (complement) option that allows you
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to perform an `inverse clip', removing horizontal or vertical bands from an
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image.
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6. The gifclrmp utility supports a new `-t' switch for shuffling color index
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values.
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7. A new tool `gifcolor' generates test pattern from colormap input.
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New Documentation and Examples
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8. The documentation has been overhauled completely and translated out of the
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dialect spoken by the estimable Mr. Elber into something like standard
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English :-).
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9. Two source code files gifspnge.c and giffiltr.c have been added to the
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util directory. These are GIF copiers that exercise the I/O routines,
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provided as skeletons for your applications. Read the comments in them
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for more info.
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10. The util Makefile for UNIX has been improved. It now uses the cc/gcc -s
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option rather than strip(1). There are now separate install productions,
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so you can test new versions in util before installation for production
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(the top-level make script still does an install).
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Version 1.2
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-----------
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1. GIFFIX - a new tool to attempt and fix broken GIF images. Currently fix
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images that has EOF prematurely by padding with the darkest color.
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2. Make GIF2BGI display as much as it can considering the mem. avail.
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3. Add -q flag to all tools for quite running scan line number mode.
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4. Fix a (minor!?) bug in the GIF decoder when encountering code 4095.
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5. New tools (RGB2GIF and GIF2RGB) to convert GIF to/from 24 bits RGB images.
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6. New tool GIFROTAT to rotate a gif image by an arbitrary angle.
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7. GifRSize was updated to resize by an arbitrary factor.
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Version 1.1
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-----------
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1. GIF2BGI - a new utility to display GIF images using Borland's BGI drivers
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(if you have one...)
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2. TEXT2GIF - Converts plain text into GIF images.
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3. GIF2IRIS - SGI4D display program for GIF images.
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4. GIF_LIB naming convension has been modified to make sure it has unique
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names (see gif_lib.h).
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5. Support for SGI4D gl and X11 window grabbing has been added to the
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library. SGI4D input is quantizied into 8 bits.
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Also support for EGA/VGA devices has been added as well.
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see Dev2gif.c module.
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6. Support for the new gif89a format has been added.
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Enjoy,
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Gershon Elber
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gershon@cs.utah.edu
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Eric S. Raymond
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esr@snark.thyrsus.com
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