10.0
10.1
11.0
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11.2
11.3
12.0
12.1
6.0
6.1
6.2
6.2.0
6.2.0-rc1
6.2.0-rc2
6.3
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6.3-rc2
6.3-rc3
7.10
7.4
7.5
7.6
7.6-blfs
7.6-systemd
7.7
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7.9
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8.1
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8.3
8.4
9.0
9.1
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Last change
on this file since e1d7dec was e1d7dec, checked in by Larry Lawrence <larry@…>, 21 years ago |
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update libungif intro
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@1073 af4574ff-66df-0310-9fd7-8a98e5e911e0
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| 1 | <sect2>
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| 2 | <title>Introduction to <application>libungif</application></title>
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| 3 |
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| 4 | <para>The libungif package contains libraries for reading all
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| 5 | <acronym>GIF</acronym>s and writing uncompressed ones as well as programs for
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| 6 | converting and working with <acronym>GIF</acronym> files. The libraries are
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| 7 | useful for any graphics program wishing to deal with <acronym>GIF</acronym>
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| 8 | files while the programs are useful for conversion purposes as well as cleaning
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| 9 | up images.</para>
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| 10 |
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| 11 | <para>The reason libungif only writes uncompressed <acronym>GIF</acronym>s
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| 12 | is due to a legal issue with <acronym>LZW</acronym> compression (which Unisys
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| 13 | claims a patent on). Reading <acronym>GIF</acronym>s is not a problem as the
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| 14 | uncompression routines do not seem to be limited in this way. Note that this
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| 15 | has in the past been disputed. The best way to avoid this whole mess is to
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| 16 | simply use libungif for looking at <acronym>GIF</acronym> images on the web,
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| 17 | while in any pages which you design, use the open source <acronym>PNG</acronym>
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| 18 | format instead (which uses, not surprisingly, the libpng library) which has no
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| 19 | patent issues at all.</para>
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| 20 |
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| 21 | <sect3><title>Package information</title>
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| 22 | <itemizedlist spacing='compact'>
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| 23 | <listitem><para>Download (HTTP): <ulink url="&libungif-download-http;"/></para></listitem>
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| 24 | <listitem><para>Download (FTP): <ulink url="&libungif-download-ftp;"/></para></listitem>
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| 25 | <listitem><para>Download size: &libungif-size;</para></listitem>
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| 26 | <listitem><para>Estimated Disk space required: &libungif-buildsize;</para></listitem>
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| 27 | <listitem><para>Estimated build time: &libungif-time;</para></listitem></itemizedlist>
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| 28 | </sect3>
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| 29 |
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| 30 |
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| 31 | </sect2>
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