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 non-compressed 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 non-compressed <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 | decompression 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 | <sect3><title>Additional downloads</title>
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31 | <itemizedlist spacing='compact'>
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32 | <listitem><para>Required patch: <ulink
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33 | url="&patch-root;/libungif-4.1.0b1-va_start.patch"/></para></listitem>
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34 | </itemizedlist>
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35 | </sect3>
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36 |
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37 | </sect2>
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