[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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| 7 | <!ENTITY libungif-download-http "http://ftp.sunfreeware.com/ftp/pub/freeware/SOURCES/libungif-&libungif-version;.tar.gz">
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| 8 | <!ENTITY libungif-download-ftp "ftp://sunfreeware.secsup.org/pub/solaris/freeware/SOURCES/libungif-&libungif-version;.tar.gz">
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| 9 | <!ENTITY libungif-size "343 KB">
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| 10 | <!ENTITY libungif-buildsize "3.1 MB">
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| 11 | <!ENTITY libungif-time "0.11 SBU">
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| 12 |
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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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| 46 | <listitem><para>Download (HTTP): <ulink url="&libungif-download-http;"/></para></listitem>
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| 47 | <listitem><para>Download (FTP): <ulink url="&libungif-download-ftp;"/></para></listitem>
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| 48 | <listitem><para>Download size: &libungif-size;</para></listitem>
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| 49 | <listitem><para>Estimated Disk space required: &libungif-buildsize;</para></listitem>
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| 50 | <listitem><para>Estimated build time: &libungif-time;</para></listitem></itemizedlist>
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| 51 | </sect3>
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[014d11ad] | 52 |
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[52d29f7] | 53 | <sect3><title>Additional downloads</title>
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| 54 | <itemizedlist spacing='compact'>
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[07b157f4] | 55 | <listitem><para>Required Patch: <ulink
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[4f6275fd] | 56 | url="&patch-root;/libungif-&libungif-version;-va_start-1.patch"/></para></listitem>
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[52d29f7] | 57 | </itemizedlist>
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| 58 | </sect3>
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[014d11ad] | 59 |
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[a249d64] | 60 | <sect3><title><application>libungif</application> dependencies</title>
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| 61 | <sect4><title>Optional</title>
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| 62 | <para>X (<xref linkend="xfree86"/> or <xref linkend="xorg"/>)</para></sect4>
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| 63 | </sect3>
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| 64 |
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[52d29f7] | 65 | </sect2>
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| 66 |
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| 67 | <sect2>
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| 68 | <title>Installation of <application>libungif</application></title>
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[014d11ad] | 69 |
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[52d29f7] | 70 | <para>Install <application>libungif</application> by running the following
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| 71 | commands:</para>
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[014d11ad] | 72 |
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[4f6275fd] | 73 | <screen><userinput><command>patch -Np1 -i ../libungif-&libungif-version;-va_start-1.patch &&
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[52d29f7] | 74 | ./configure --prefix=/usr &&
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| 75 | make &&
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| 76 | make install</command></userinput></screen>
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[014d11ad] | 77 |
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[52d29f7] | 78 | <!--
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| 79 | <note><para>If you get an error during the make portion compiling
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| 80 | <filename>lib/qprintf.c</filename>,
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| 81 | edit the file and comment out or remove line 14: #include <config.h>
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| 82 | </para></note>
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| 83 | -->
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[014d11ad] | 84 |
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[52d29f7] | 85 | </sect2>
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| 86 |
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| 87 | <sect2>
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| 88 | <title>Contents</title>
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[014d11ad] | 89 |
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[52d29f7] | 90 | <para>The libungif package contains <command>gif2epsn</command>,
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| 91 | <command>gif2ps</command>, <command>gif2rgb</command>,
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| 92 | <command>gifasm</command>, <command>gifbg</command>,
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| 93 | <command>gifburst</command>, <command>gifclip</command>,
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| 94 | <command>gifclrmp</command>, <command>gifcolor</command>,
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| 95 | <command>gifcomb</command>, <command>gifcompose</command>,
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| 96 | <command>giffiltr</command>, <command>giffix</command>,
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| 97 | <command>gifflip</command>, <command>gifhisto</command>,
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| 98 | <command>gifinfo</command>, <command>gifinter</command>,
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| 99 | <command>gifinto</command>, <command>gifovly</command>,
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| 100 | <command>gifpos</command>, <command>gifrotat</command>,
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| 101 | <command>gifrsize</command>, <command>gifspnge</command>,
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| 102 | <command>giftext</command>, <command>gifwedge</command>,
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| 103 | <command>icon2gif</command>, <command>raw2gif</command>,
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| 104 | <command>rgb2gif</command>, <command>text2gif</command> and
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| 105 | <filename>libungif</filename> libraries.</para>
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[014d11ad] | 106 |
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[52d29f7] | 107 | </sect2>
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[014d11ad] | 108 |
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[52d29f7] | 109 | <sect2><title>Description</title>
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[014d11ad] | 110 |
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[52d29f7] | 111 | <sect3><title>gif2epsn</title>
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[014d11ad] | 112 | <para>Dumps images saved as <acronym>GIF</acronym> files on Epson type
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| 113 | printers.</para></sect3>
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| 114 |
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[52d29f7] | 115 | <sect3><title>gif2ps</title>
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| 116 | <para>Print <acronym>GIF</acronym> files on laser printers supporting PostScript.
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| 117 | </para></sect3>
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[014d11ad] | 118 |
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[52d29f7] | 119 | <sect3><title>gif2rgb</title>
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[a249d64] | 120 | <para>Convert images saved as <acronym>GIF</acronym> to 24-bit
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| 121 | <acronym>RGB</acronym> image(s).</para></sect3>
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[014d11ad] | 122 |
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[52d29f7] | 123 | <sect3><title>gifasm</title>
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| 124 | <para>Assemble multiple <acronym>GIF</acronym>s into one, or burst a
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| 125 | multiple-image <acronym>GIF</acronym>.</para></sect3>
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[014d11ad] | 126 |
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[52d29f7] | 127 | <sect3><title>gifbg</title>
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| 128 | <para>Generate a single-color test pattern <acronym>GIF</acronym>.</para>
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| 129 | </sect3>
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[014d11ad] | 130 |
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[52d29f7] | 131 | <sect3><title>gifburst</title>
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| 132 | <para>Burst a <acronym>GIF</acronym> image into subrectangles.</para></sect3>
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[014d11ad] | 133 |
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[52d29f7] | 134 | <sect3><title>gifclip</title>
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| 135 | <para>Clip or crop a <acronym>GIF</acronym> image.</para></sect3>
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[014d11ad] | 136 |
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[52d29f7] | 137 | <sect3><title>gifclrmp</title>
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| 138 | <para>Modify <acronym>GIF</acronym> image colormaps.</para></sect3>
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[014d11ad] | 139 |
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[52d29f7] | 140 | <sect3><title>gifcolor</title>
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| 141 | <para>Generate color test patterns.</para></sect3>
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[014d11ad] | 142 |
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[52d29f7] | 143 | <sect3><title>gifcomb</title>
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| 144 | <para>Combine 2 <acronym>GIF</acronym> images of exactly the same size into one.
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| 145 | </para></sect3>
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[014d11ad] | 146 |
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[52d29f7] | 147 | <sect3><title>gifcompose</title>
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| 148 | <para>Use (un)giflib tools to compose images.</para></sect3>
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[014d11ad] | 149 |
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[52d29f7] | 150 | <sect3><title>giffiltr</title>
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[014d11ad] | 151 | <para>Template code for filtering a <acronym>GIF</acronym>
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| 152 | sequentially.</para></sect3>
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| 153 |
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[52d29f7] | 154 | <sect3><title>giffix</title>
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| 155 | <para>Clumsily attempts to fix truncated <acronym>GIF</acronym> images.</para>
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| 156 | </sect3>
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| 157 |
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| 158 | <sect3><title>gifflip</title>
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| 159 | <para>Flip <acronym>GIF</acronym> image along X or Y axis or rotate by 90
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| 160 | degrees.</para></sect3>
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[014d11ad] | 161 |
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[52d29f7] | 162 | <sect3><title>gifhisto</title>
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| 163 | <para>Generate color-frequency histogram from a <acronym>GIF</acronym>.</para>
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| 164 | </sect3>
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[014d11ad] | 165 |
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[52d29f7] | 166 | <sect3><title>gifinfo</title>
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| 167 | <para>Gives information on a <acronym>GIF</acronym> file.</para></sect3>
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[014d11ad] | 168 |
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[52d29f7] | 169 | <sect3><title>gifinter</title>
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| 170 | <para>Convert between interlaced and non-interlaced images.</para></sect3>
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[014d11ad] | 171 |
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[52d29f7] | 172 | <sect3><title>gifinto</title>
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[014d11ad] | 173 | <para>End-of-pipe fitting for <acronym>GIF</acronym>-processing
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| 174 | pipelines.</para></sect3>
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| 175 |
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[52d29f7] | 176 | <sect3><title>gifovly</title>
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| 177 | <para>Generate one composite <acronym>GIF</acronym> from a multiple-image
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| 178 | <acronym>GIF</acronym>.</para></sect3>
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[014d11ad] | 179 |
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[52d29f7] | 180 | <sect3><title>gifpos</title>
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[a249d64] | 181 | <para>Change a <acronym>GIF</acronym>'s screen size or recondition
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| 182 | it.</para></sect3>
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[014d11ad] | 183 |
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[52d29f7] | 184 | <sect3><title>gifrotat</title>
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[014d11ad] | 185 | <para>Rotate a <acronym>GIF</acronym> through any desired angle.</para></sect3>
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| 186 |
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[52d29f7] | 187 | <sect3><title>gifrsize</title>
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| 188 | <para>Resize a <acronym>GIF</acronym> by deletion or duplication of bits.</para>
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| 189 | </sect3>
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[014d11ad] | 190 |
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[52d29f7] | 191 | <sect3><title>gifspnge</title>
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| 192 | <para>Template code for filtering a <acronym>GIF</acronym> with in-core
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| 193 | operations.</para></sect3>
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[014d11ad] | 194 |
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[52d29f7] | 195 | <sect3><title>giftext</title>
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| 196 | <para>Print (text only) general information about a <acronym>GIF</acronym>.
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| 197 | </para></sect3>
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[014d11ad] | 198 |
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[52d29f7] | 199 | <sect3><title>gifwedge</title>
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| 200 | <para>Create a test <acronym>GIF</acronym> image resembling a color monitor
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| 201 | test pattern.</para></sect3>
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[014d11ad] | 202 |
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[52d29f7] | 203 | <sect3><title>icon2gif</title>
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| 204 | <para>Converter/deconverter to/from an editable text format.</para></sect3>
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[014d11ad] | 205 |
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[52d29f7] | 206 | <sect3><title>raw2gif</title>
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| 207 | <para>Convert raw 8-bit image data into <acronym>GIF</acronym> files.</para>
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| 208 | </sect3>
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[014d11ad] | 209 |
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[52d29f7] | 210 | <sect3><title>rgb2gif</title>
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| 211 | <para>Convert 24 bit images to a <acronym>GIF</acronym> image using color
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| 212 | quantization.</para></sect3>
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[014d11ad] | 213 |
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[52d29f7] | 214 | <sect3><title>text2gif</title>
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| 215 | <para>Generate <acronym>GIF</acronym> images out of regular text in 8x8 font.
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| 216 | </para></sect3>
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[014d11ad] | 217 |
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[52d29f7] | 218 | </sect2>
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[f45b1953] | 219 |
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| 220 | </sect1>
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| 221 |
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