[52d29f7] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[d4e57f76] | 7 | <!ENTITY libungif-download-http "http://prdownloads.sourceforge.net/libungif/libungif-&libungif-version;.tar.bz2">
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| 8 | <!ENTITY libungif-download-ftp " ">
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[d97499f] | 9 | <!ENTITY libungif-md5sum "8c198831cc0495596c78134b8849e9ad">
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[d4e57f76] | 10 | <!ENTITY libungif-size "430 KB">
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| 11 | <!ENTITY libungif-buildsize "5.7 MB">
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[52d29f7] | 12 | <!ENTITY libungif-time "0.11 SBU">
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| 13 | ]>
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| 14 |
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[f45b1953] | 15 | <sect1 id="libungif" xreflabel="libungif-&libungif-version;">
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[a0f03b0] | 16 | <sect1info>
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[5cd0959d] | 17 | <othername>$LastChangedBy$</othername>
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| 18 | <date>$Date$</date>
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[a0f03b0] | 19 | </sect1info>
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[7f72cbf] | 20 | <?dbhtml filename="libungif.html"?>
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[f45b1953] | 21 | <title>libungif-&libungif-version;</title>
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| 22 |
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[52d29f7] | 23 | <sect2>
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| 24 | <title>Introduction to <application>libungif</application></title>
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[014d11ad] | 25 |
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[a249d64] | 26 | <para>The <application>libungif</application> package contains libraries for
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| 27 | reading all <acronym>GIF</acronym>s and writing non-compressed ones as well as
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| 28 | programs for converting and working with <acronym>GIF</acronym> files. The
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| 29 | libraries are useful for any graphics program wishing to deal with
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| 30 | <acronym>GIF</acronym> files while the programs are useful for conversion
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| 31 | purposes as well as cleaning up images.</para>
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| 32 |
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| 33 | <para>The reason <application>libungif</application> only writes non-compressed
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| 34 | <acronym>GIF</acronym>s is due to a legal issue with <acronym>LZW</acronym>
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| 35 | compression (which Unisys claims a patent on). Reading <acronym>GIF</acronym>s
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| 36 | is not a problem as the decompression routines do not seem to be limited in
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| 37 | this way. Note that this has in the past been disputed. The best way to avoid
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| 38 | this whole mess is to simply use <application>libungif</application> for
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| 39 | looking at <acronym>GIF</acronym> images on the web, while in any pages which
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| 40 | you design, use the open source <acronym>PNG</acronym> format instead (which
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| 41 | uses, not surprisingly, the <application>libpng</application> library) which
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| 42 | has no patent issues at all.</para>
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[014d11ad] | 43 |
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[52d29f7] | 44 | <sect3><title>Package information</title>
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| 45 | <itemizedlist spacing='compact'>
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[d97499f] | 46 | <listitem><para>Download (HTTP):
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| 47 | <ulink url="&libungif-download-http;"/></para></listitem>
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| 48 | <listitem><para>Download (FTP):
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| 49 | <ulink url="&libungif-download-ftp;"/></para></listitem>
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| 50 | <listitem><para>Download MD5 sum: &libungif-md5sum;</para></listitem>
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[52d29f7] | 51 | <listitem><para>Download size: &libungif-size;</para></listitem>
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[d97499f] | 52 | <listitem><para>Estimated disk space required:
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| 53 | &libungif-buildsize;</para></listitem>
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| 54 | <listitem><para>Estimated build time:
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| 55 | &libungif-time;</para></listitem></itemizedlist>
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[52d29f7] | 56 | </sect3>
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[014d11ad] | 57 |
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[a249d64] | 58 | <sect3><title><application>libungif</application> dependencies</title>
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| 59 | <sect4><title>Optional</title>
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[d97499f] | 60 | <para>X (<xref linkend="xfree86"/> or <xref linkend="xorg"/>)</para>
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| 61 | </sect4>
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[a249d64] | 62 | </sect3>
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| 63 |
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[52d29f7] | 64 | </sect2>
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| 65 |
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| 66 | <sect2>
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| 67 | <title>Installation of <application>libungif</application></title>
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[014d11ad] | 68 |
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[52d29f7] | 69 | <para>Install <application>libungif</application> by running the following
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| 70 | commands:</para>
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[014d11ad] | 71 |
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[d4e57f76] | 72 | <screen><userinput><command>./configure --prefix=/usr &&
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[52d29f7] | 73 | make &&
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| 74 | make install</command></userinput></screen>
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[014d11ad] | 75 |
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[52d29f7] | 76 | </sect2>
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| 77 |
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| 78 | <sect2>
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| 79 | <title>Contents</title>
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[014d11ad] | 80 |
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[d4e57f76] | 81 | <para>The libungif package contains
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| 82 | <command>gif2epsn</command>,
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| 83 | <command>gif2ps</command>,
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| 84 | <command>gif2rgb</command>,
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| 85 | <command>gif2x11</command>,
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| 86 | <command>gifasm</command>,
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| 87 | <command>gifbg</command>,
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| 88 | <command>gifburst</command>,
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| 89 | <command>gifclip</command>,
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| 90 | <command>gifclrmp</command>,
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| 91 | <command>gifcolor</command>,
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| 92 | <command>gifcomb</command>,
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| 93 | <command>gifcompose</command>,
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| 94 | <command>giffiltr</command>,
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| 95 | <command>giffix</command>,
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| 96 | <command>gifflip</command>,
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| 97 | <command>gifhisto</command>,
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| 98 | <command>gifinfo</command>,
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| 99 | <command>gifinter</command>,
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| 100 | <command>gifinto</command>,
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| 101 | <command>gifovly</command>,
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| 102 | <command>gifpos</command>,
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| 103 | <command>gifrotat</command>,
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| 104 | <command>gifrsize</command>,
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| 105 | <command>gifspnge</command>,
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| 106 | <command>giftext</command>,
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| 107 | <command>gifwedge</command>,
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| 108 | <command>icon2gif</command>,
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| 109 | <command>raw2gif</command>,
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| 110 | <command>rgb2gif</command>,
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| 111 | <command>text2gif</command> and
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| 112 | <filename class="libraryfile">libungif</filename> libraries.</para>
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[014d11ad] | 113 |
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[52d29f7] | 114 | </sect2>
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[014d11ad] | 115 |
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[52d29f7] | 116 | <sect2><title>Description</title>
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[014d11ad] | 117 |
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[52d29f7] | 118 | <sect3><title>gif2epsn</title>
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[014d11ad] | 119 | <para>Dumps images saved as <acronym>GIF</acronym> files on Epson type
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| 120 | printers.</para></sect3>
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| 121 |
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[52d29f7] | 122 | <sect3><title>gif2ps</title>
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[d97499f] | 123 | <para>Print <acronym>GIF</acronym> files on laser printers supporting
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| 124 | PostScript.</para></sect3>
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[014d11ad] | 125 |
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[52d29f7] | 126 | <sect3><title>gif2rgb</title>
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[a249d64] | 127 | <para>Convert images saved as <acronym>GIF</acronym> to 24-bit
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| 128 | <acronym>RGB</acronym> image(s).</para></sect3>
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[014d11ad] | 129 |
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[d4e57f76] | 130 | <sect3><title>gif2x11</title>
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| 131 | <para>Display images saved as <acronym>GIF</acronym> files
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| 132 | under X Window System.</para></sect3>
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| 133 |
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[52d29f7] | 134 | <sect3><title>gifasm</title>
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| 135 | <para>Assemble multiple <acronym>GIF</acronym>s into one, or burst a
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| 136 | multiple-image <acronym>GIF</acronym>.</para></sect3>
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[014d11ad] | 137 |
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[52d29f7] | 138 | <sect3><title>gifbg</title>
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| 139 | <para>Generate a single-color test pattern <acronym>GIF</acronym>.</para>
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| 140 | </sect3>
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[014d11ad] | 141 |
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[52d29f7] | 142 | <sect3><title>gifburst</title>
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| 143 | <para>Burst a <acronym>GIF</acronym> image into subrectangles.</para></sect3>
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[014d11ad] | 144 |
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[52d29f7] | 145 | <sect3><title>gifclip</title>
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| 146 | <para>Clip or crop a <acronym>GIF</acronym> image.</para></sect3>
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[014d11ad] | 147 |
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[52d29f7] | 148 | <sect3><title>gifclrmp</title>
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| 149 | <para>Modify <acronym>GIF</acronym> image colormaps.</para></sect3>
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[014d11ad] | 150 |
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[52d29f7] | 151 | <sect3><title>gifcolor</title>
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| 152 | <para>Generate color test patterns.</para></sect3>
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[014d11ad] | 153 |
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[52d29f7] | 154 | <sect3><title>gifcomb</title>
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[d97499f] | 155 | <para>Combine 2 <acronym>GIF</acronym> images of exactly the same size into
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| 156 | one.</para></sect3>
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[014d11ad] | 157 |
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[52d29f7] | 158 | <sect3><title>gifcompose</title>
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| 159 | <para>Use (un)giflib tools to compose images.</para></sect3>
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[014d11ad] | 160 |
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[52d29f7] | 161 | <sect3><title>giffiltr</title>
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[014d11ad] | 162 | <para>Template code for filtering a <acronym>GIF</acronym>
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| 163 | sequentially.</para></sect3>
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| 164 |
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[52d29f7] | 165 | <sect3><title>giffix</title>
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| 166 | <para>Clumsily attempts to fix truncated <acronym>GIF</acronym> images.</para>
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| 167 | </sect3>
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| 168 |
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| 169 | <sect3><title>gifflip</title>
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| 170 | <para>Flip <acronym>GIF</acronym> image along X or Y axis or rotate by 90
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| 171 | degrees.</para></sect3>
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[014d11ad] | 172 |
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[52d29f7] | 173 | <sect3><title>gifhisto</title>
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| 174 | <para>Generate color-frequency histogram from a <acronym>GIF</acronym>.</para>
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| 175 | </sect3>
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[014d11ad] | 176 |
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[52d29f7] | 177 | <sect3><title>gifinfo</title>
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| 178 | <para>Gives information on a <acronym>GIF</acronym> file.</para></sect3>
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[014d11ad] | 179 |
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[52d29f7] | 180 | <sect3><title>gifinter</title>
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| 181 | <para>Convert between interlaced and non-interlaced images.</para></sect3>
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[014d11ad] | 182 |
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[52d29f7] | 183 | <sect3><title>gifinto</title>
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[014d11ad] | 184 | <para>End-of-pipe fitting for <acronym>GIF</acronym>-processing
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| 185 | pipelines.</para></sect3>
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| 186 |
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[52d29f7] | 187 | <sect3><title>gifovly</title>
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| 188 | <para>Generate one composite <acronym>GIF</acronym> from a multiple-image
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| 189 | <acronym>GIF</acronym>.</para></sect3>
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[014d11ad] | 190 |
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[52d29f7] | 191 | <sect3><title>gifpos</title>
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[a249d64] | 192 | <para>Change a <acronym>GIF</acronym>'s screen size or recondition
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| 193 | it.</para></sect3>
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[014d11ad] | 194 |
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[52d29f7] | 195 | <sect3><title>gifrotat</title>
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[014d11ad] | 196 | <para>Rotate a <acronym>GIF</acronym> through any desired angle.</para></sect3>
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| 197 |
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[52d29f7] | 198 | <sect3><title>gifrsize</title>
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| 199 | <para>Resize a <acronym>GIF</acronym> by deletion or duplication of bits.</para>
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| 200 | </sect3>
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[014d11ad] | 201 |
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[52d29f7] | 202 | <sect3><title>gifspnge</title>
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| 203 | <para>Template code for filtering a <acronym>GIF</acronym> with in-core
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| 204 | operations.</para></sect3>
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[014d11ad] | 205 |
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[52d29f7] | 206 | <sect3><title>giftext</title>
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| 207 | <para>Print (text only) general information about a <acronym>GIF</acronym>.
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| 208 | </para></sect3>
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[014d11ad] | 209 |
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[52d29f7] | 210 | <sect3><title>gifwedge</title>
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| 211 | <para>Create a test <acronym>GIF</acronym> image resembling a color monitor
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| 212 | test pattern.</para></sect3>
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[014d11ad] | 213 |
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[52d29f7] | 214 | <sect3><title>icon2gif</title>
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| 215 | <para>Converter/deconverter to/from an editable text format.</para></sect3>
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[014d11ad] | 216 |
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[52d29f7] | 217 | <sect3><title>raw2gif</title>
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| 218 | <para>Convert raw 8-bit image data into <acronym>GIF</acronym> files.</para>
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| 219 | </sect3>
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[014d11ad] | 220 |
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[52d29f7] | 221 | <sect3><title>rgb2gif</title>
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| 222 | <para>Convert 24 bit images to a <acronym>GIF</acronym> image using color
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| 223 | quantization.</para></sect3>
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[014d11ad] | 224 |
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[52d29f7] | 225 | <sect3><title>text2gif</title>
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| 226 | <para>Generate <acronym>GIF</acronym> images out of regular text in 8x8 font.
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| 227 | </para></sect3>
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[014d11ad] | 228 |
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[52d29f7] | 229 | </sect2>
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[f45b1953] | 230 |
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| 231 | </sect1>
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