1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.4/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://prdownloads.sourceforge.net/libungif/libungif-&libungif-version;.tar.bz2">
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8 | <!ENTITY libungif-download-ftp " ">
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9 | <!ENTITY libungif-md5sum "8c198831cc0495596c78134b8849e9ad">
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10 | <!ENTITY libungif-size "430 KB">
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11 | <!ENTITY libungif-buildsize "6.2 MB">
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12 | <!ENTITY libungif-time "0.16 SBU">
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13 | ]>
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14 |
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15 | <sect1 id="libungif" xreflabel="libungif-&libungif-version;">
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16 | <?dbhtml filename="libungif.html"?>
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17 |
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18 | <sect1info>
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19 | <othername>$LastChangedBy$</othername>
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20 | <date>$Date$</date>
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21 | </sect1info>
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22 |
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23 | <title>Libungif-&libungif-version;</title>
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24 |
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25 | <indexterm zone="libungif">
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26 | <primary sortas="a-Libungif">Libungif</primary>
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27 | </indexterm>
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28 |
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29 | <sect2 role="package">
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30 | <title>Introduction to Libungif</title>
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31 |
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32 | <para>The <application>libungif</application> package contains libraries
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33 | for reading all GIFs and writing non-compressed ones as well as programs
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34 | for converting and working with GIF files. The libraries are useful for any
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35 | graphics program wishing to deal with GIF files while the programs are useful
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36 | for conversion purposes as well as cleaning up images.</para>
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37 |
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38 | <para>The reason <application>libungif</application> only writes non-compressed
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39 | GIFs is due to a legal issue with LZW compression (which Unisys claimed a patent
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40 | on). Reading GIFs is not a problem as the decompression routines do not seem to
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41 | be limited in this way. Note that this has in the past been disputed. The best way to
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42 | avoid this whole mess is to simply use <application>libungif</application> for
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43 | looking at GIF images on the web, while in any pages which you design, use the open
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44 | source PNG format instead (which uses, not surprisingly, the
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45 | <application>libpng</application> library) which has no patent issues at all.</para>
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46 |
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47 | <bridgehead renderas="sect3">Package Information</bridgehead>
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48 | <itemizedlist spacing="compact">
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49 | <listitem>
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50 | <para>Download (HTTP): <ulink url="&libungif-download-http;"/></para>
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51 | </listitem>
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52 | <listitem>
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53 | <para>Download (FTP): <ulink url="&libungif-download-ftp;"/></para>
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54 | </listitem>
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55 | <listitem>
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56 | <para>Download MD5 sum: &libungif-md5sum;</para>
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57 | </listitem>
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58 | <listitem>
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59 | <para>Download size: &libungif-size;</para>
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60 | </listitem>
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61 | <listitem>
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62 | <para>Estimated disk space required: &libungif-buildsize;</para>
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63 | </listitem>
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64 | <listitem>
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65 | <para>Estimated build time: &libungif-time;</para>
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66 | </listitem>
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67 | </itemizedlist>
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68 |
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69 | <bridgehead renderas="sect3">Libungif Dependencies</bridgehead>
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70 |
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71 | <bridgehead renderas="sect4">Optional</bridgehead>
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72 | <para>X (<xref linkend="xfree86"/> or <xref linkend="xorg"/>)</para>
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73 |
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74 | </sect2>
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75 |
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76 | <sect2 role="kernel" id='TEMPLATE-kernel'>
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77 | <title>Installation of Libungif</title>
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78 |
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79 | <para>Install <application>libungif</application> by running the following
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80 | commands:</para>
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81 |
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82 | <screen><userinput>./configure --prefix=/usr &&
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83 | make &&
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84 | make install &&
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85 | install -v -m755 -d /usr/share/doc/libungif-&libungif-version;/html &&
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86 | install -v -m644 doc/*.{png,html} \
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87 | /usr/share/doc/libungif-&libungif-version;/html &&
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88 | install -v -m644 doc/*.txt \
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89 | /usr/share/doc/libungif-&libungif-version;</userinput></screen>
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90 |
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91 | </sect2>
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92 |
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93 | <sect2 role="content">
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94 | <title>Contents</title>
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95 |
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96 | <segmentedlist>
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97 | <segtitle>Installed Programs</segtitle>
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98 | <segtitle>Installed Library</segtitle>
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99 | <segtitle>Installed Directories</segtitle>
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100 |
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101 | <seglistitem>
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102 | <seg>gif2epsn, gif2ps, gif2rgb, gif2x11, gifasm, gifbg, gifburst, gifclip,
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103 | gifclrmp, gifcolor, gifcomb, gifcompose, giffiltr, giffix, gifflip, gifhisto,
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104 | gifinfo, gifinter, gifinto, gifovly, gifpos, gifrotat, gifrsize, gifspnge, giftext,
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105 | gifwedge, icon2gif, raw2gif, rgb2gif, and text2gif</seg>
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106 | <seg>libungif.[so,a]</seg>
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107 | <seg>None</seg>
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108 | </seglistitem>
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109 | </segmentedlist>
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110 |
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111 | <variablelist>
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112 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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113 | <?dbfo list-presentation="list"?>
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114 | <?dbhtml list-presentation="table"?>
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115 |
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116 | <varlistentry id="gif2epsn-libungif">
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117 | <term><command>gif2epsn</command></term>
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118 | <listitem>
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119 | <para>dumps images saved as GIF files on Epson type printers.</para>
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120 | <indexterm zone="libungif gif2epsn-libungif">
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121 | <primary sortas="b-gif2epsn">gif2epsn</primary>
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122 | </indexterm>
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123 | </listitem>
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124 | </varlistentry>
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125 |
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126 | <varlistentry id="gif2ps-libungif">
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127 | <term><command>gif2ps</command></term>
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128 | <listitem>
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129 | <para>print GIF files on laser printers supporting PostScript.</para>
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130 | <indexterm zone="libungif gif2ps-libungif">
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131 | <primary sortas="b-gif2ps">gif2ps</primary>
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132 | </indexterm>
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133 | </listitem>
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134 | </varlistentry>
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135 |
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136 | <varlistentry id="gif2rgb-libungif">
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137 | <term><command>gif2rgb</command></term>
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138 | <listitem>
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139 | <para>convert images saved as GIF to 24-bit RGB image(s).</para>
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140 | <indexterm zone="libungif gif2rgb-libungif">
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141 | <primary sortas="b-gif2rgb">gif2rgb</primary>
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142 | </indexterm>
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143 | </listitem>
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144 | </varlistentry>
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145 |
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146 | <varlistentry id="gif2x11-libungif">
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147 | <term><command>gif2x11</command></term>
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148 | <listitem>
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149 | <para>display images saved as GIF files under X Window System.</para>
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150 | <indexterm zone="libungif gif2x11-libungif">
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151 | <primary sortas="b-gif2x11">gif2x11</primary>
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152 | </indexterm>
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153 | </listitem>
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154 | </varlistentry>
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155 |
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156 | <varlistentry id="gifasm-libungif">
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157 | <term><command>gifasm</command></term>
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158 | <listitem>
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159 | <para>assemble multiple GIFs into one, or burst a multiple-image GIF.</para>
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160 | <indexterm zone="libungif gifasm-libungif">
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161 | <primary sortas="b-gifasm">gifasm</primary>
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162 | </indexterm>
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163 | </listitem>
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164 | </varlistentry>
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165 |
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166 | <varlistentry id="gifbg-libungif">
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167 | <term><command>gifbg</command></term>
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168 | <listitem>
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169 | <para>generate a single-color test pattern GIF.</para>
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170 | <indexterm zone="libungif gifbg-libungif">
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171 | <primary sortas="b-gifbg">gifbg</primary>
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172 | </indexterm>
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173 | </listitem>
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174 | </varlistentry>
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175 |
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176 | <varlistentry id="gifburst-libungif">
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177 | <term><command>gifburst</command></term>
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178 | <listitem>
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179 | <para>burst a GIF image into subrectangles.</para>
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180 | <indexterm zone="libungif gifburst-libungif">
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181 | <primary sortas="b-gifburst">gifburst</primary>
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182 | </indexterm>
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183 | </listitem>
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184 | </varlistentry>
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185 |
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186 | <varlistentry id="gifclip-libungif">
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187 | <term><command>gifclip</command></term>
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188 | <listitem>
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189 | <para>clip or crop a GIF image.</para>
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190 | <indexterm zone="libungif gifclip-libungif">
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191 | <primary sortas="b-gifclip">gifclip</primary>
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192 | </indexterm>
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193 | </listitem>
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194 | </varlistentry>
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195 |
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196 | <varlistentry id="gifclrmp-libungif">
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197 | <term><command>gifclrmp</command></term>
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198 | <listitem>
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199 | <para>modify GIF image colormaps.</para>
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200 | <indexterm zone="libungif gifclrmp-libungif">
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201 | <primary sortas="b-gifclrmp">gifclrmp</primary>
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202 | </indexterm>
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203 | </listitem>
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204 | </varlistentry>
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205 |
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206 | <varlistentry id="gifcolor-libungif">
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207 | <term><command>gifcolor</command></term>
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208 | <listitem>
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209 | <para>generate color test patterns.</para>
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210 | <indexterm zone="libungif gifcolor-libungif">
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211 | <primary sortas="b-gifcolor">gifcolor</primary>
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212 | </indexterm>
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213 | </listitem>
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214 | </varlistentry>
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215 |
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216 | <varlistentry id="gifcomb-libungif">
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217 | <term><command>gifcomb</command></term>
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218 | <listitem>
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219 | <para>combine 2 GIF images of exactly the same size into one.</para>
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220 | <indexterm zone="libungif gifcomb-libungif">
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221 | <primary sortas="b-gifcomb">gifcomb</primary>
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222 | </indexterm>
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223 | </listitem>
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224 | </varlistentry>
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225 |
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226 | <varlistentry id="gifcompose-libungif">
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227 | <term><command>gifcompose</command></term>
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228 | <listitem>
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229 | <para>use (un)giflib tools to compose images.</para>
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230 | <indexterm zone="libungif gifcompose-libungif">
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231 | <primary sortas="b-gifcompose">gifcompose</primary>
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232 | </indexterm>
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233 | </listitem>
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234 | </varlistentry>
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235 |
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236 | <varlistentry id="giffiltr-libungif">
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237 | <term><command>giffiltr</command></term>
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238 | <listitem>
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239 | <para>template code for filtering a GIF sequentially.</para>
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240 | <indexterm zone="libungif giffiltr-libungif">
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241 | <primary sortas="b-giffiltr">giffiltr</primary>
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242 | </indexterm>
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243 | </listitem>
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244 | </varlistentry>
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245 |
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246 | <varlistentry id="giffix-libungif">
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247 | <term><command>giffix</command></term>
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248 | <listitem>
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249 | <para>clumsily attempts to fix truncated GIF images.</para>
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250 | <indexterm zone="libungif giffix-libungif">
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251 | <primary sortas="b-giffix">giffix</primary>
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252 | </indexterm>
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253 | </listitem>
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254 | </varlistentry>
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255 |
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256 | <varlistentry id="gifflip-libungif">
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257 | <term><command>gifflip</command></term>
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258 | <listitem>
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259 | <para>flip GIF image along X or Y axis or rotate by 90 degrees.</para>
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260 | <indexterm zone="libungif gifflip-libungif">
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261 | <primary sortas="b-gifflip">gifflip</primary>
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262 | </indexterm>
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263 | </listitem>
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264 | </varlistentry>
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265 |
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266 | <varlistentry id="gifhisto-libungif">
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267 | <term><command>gifhisto</command></term>
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268 | <listitem>
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269 | <para>generate color-frequency histogram from a GIF.</para>
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270 | <indexterm zone="libungif gifhisto-libungif">
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271 | <primary sortas="b-gifhisto">gifhisto</primary>
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272 | </indexterm>
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273 | </listitem>
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274 | </varlistentry>
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275 |
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276 | <varlistentry id="gifinfo-libungif">
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277 | <term><command>gifinfo</command></term>
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278 | <listitem>
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279 | <para>gives information on a GIF file.</para>
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280 | <indexterm zone="libungif gifinfo-libungif">
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281 | <primary sortas="b-gifinfo">gifinfo</primary>
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282 | </indexterm>
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283 | </listitem>
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284 | </varlistentry>
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285 |
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286 | <varlistentry id="gifinter-libungif">
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287 | <term><command>gifinter</command></term>
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288 | <listitem>
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289 | <para>convert between interlaced and non-interlaced images.</para>
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290 | <indexterm zone="libungif gifinter-libungif">
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291 | <primary sortas="b-gifinter">gifinter</primary>
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292 | </indexterm>
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293 | </listitem>
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294 | </varlistentry>
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295 |
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296 | <varlistentry id="gifinto-libungif">
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297 | <term><command>gifinto</command></term>
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298 | <listitem>
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299 | <para>end-of-pipe fitting for GIF-processing pipelines.</para>
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300 | <indexterm zone="libungif gifinto-libungif">
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301 | <primary sortas="b-gifinto">gifinto</primary>
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302 | </indexterm>
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303 | </listitem>
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304 | </varlistentry>
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305 |
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306 | <varlistentry id="gifovly-libungif">
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307 | <term><command>gifo-libungifvly</command></term>
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308 | <listitem>
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309 | <para>generate one composite GIF from a multiple-image GIF.</para>
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310 | <indexterm zone="libungif gifovly-libungif">
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311 | <primary sortas="b-gifovly">gifovly</primary>
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312 | </indexterm>
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313 | </listitem>
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314 | </varlistentry>
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315 |
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316 | <varlistentry id="gifpos-libungif">
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317 | <term><command>gifpos</command></term>
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318 | <listitem>
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319 | <para>change a GIF's screen size or recondition it.</para>
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320 | <indexterm zone="libungif gifpos-libungif">
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321 | <primary sortas="b-gifpos">gifpos</primary>
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322 | </indexterm>
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323 | </listitem>
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324 | </varlistentry>
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325 |
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326 | <varlistentry id="gifrotat-libungif">
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327 | <term><command>gifrotat</command></term>
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328 | <listitem>
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329 | <para>rotate a GIF through any desired angle.</para>
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330 | <indexterm zone="libungif gifrotat-libungif">
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331 | <primary sortas="b-gifrotat">gifrotat</primary>
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332 | </indexterm>
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333 | </listitem>
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334 | </varlistentry>
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335 |
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336 | <varlistentry id="gifrsize-libungif">
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337 | <term><command>gifrsize</command></term>
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338 | <listitem>
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339 | <para>resize a GIF by deletion or duplication of bits.</para>
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340 | <indexterm zone="libungif gifrsize-libungif">
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341 | <primary sortas="b-gifrsize">gifrsize</primary>
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342 | </indexterm>
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343 | </listitem>
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344 | </varlistentry>
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345 |
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346 | <varlistentry id="gifspnge-libungif">
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347 | <term><command>gifspnge</command></term>
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348 | <listitem>
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349 | <para>template code for filtering a GIF with in-core operations.</para>
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350 | <indexterm zone="libungif gifspnge-libungif">
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351 | <primary sortas="b-gifspnge">gifspnge</primary>
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352 | </indexterm>
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353 | </listitem>
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354 | </varlistentry>
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355 |
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356 | <varlistentry id="giftext-libungif">
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357 | <term><command>giftext</command></term>
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358 | <listitem>
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359 | <para>print (text only) general information about a GIF.</para>
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360 | <indexterm zone="libungif giftext-libungif">
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361 | <primary sortas="b-giftext">giftext</primary>
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362 | </indexterm>
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363 | </listitem>
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364 | </varlistentry>
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365 |
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366 | <varlistentry id="gifwedge-libungif">
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367 | <term><command>gifwedge</command></term>
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368 | <listitem>
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369 | <para>create a test GIF image resembling a color monitor test pattern.</para>
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370 | <indexterm zone="libungif gifwedge-libungif">
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371 | <primary sortas="b-gifwedge">gifwedge</primary>
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372 | </indexterm>
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373 | </listitem>
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374 | </varlistentry>
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375 |
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376 | <varlistentry id="icon2gif-libungif">
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377 | <term><command>icon2gif</command></term>
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378 | <listitem>
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379 | <para>converter/deconverter to/from an editable text format.</para>
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380 | <indexterm zone="libungif icon2gif-libungif">
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381 | <primary sortas="b-icon2gif">icon2gif</primary>
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382 | </indexterm>
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383 | </listitem>
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384 | </varlistentry>
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385 |
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386 | <varlistentry id="raw2gif-libungif">
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387 | <term><command>raw2gif</command></term>
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388 | <listitem>
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389 | <para>convert raw 8-bit image data into GIF files.</para>
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390 | <indexterm zone="libungif raw2gif-libungif">
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391 | <primary sortas="b-raw2gif">raw2gif</primary>
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392 | </indexterm>
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393 | </listitem>
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394 | </varlistentry>
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395 |
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396 | <varlistentry id="rgb2gif-libungif">
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397 | <term><command>rgb2gif</command></term>
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398 | <listitem>
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399 | <para>convert 24 bit images to a GIF image using color quantization.</para>
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400 | <indexterm zone="libungif rgb2gif-libungif">
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401 | <primary sortas="b-rgb2gif">rgb2gif</primary>
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402 | </indexterm>
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403 | </listitem>
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404 | </varlistentry>
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405 |
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406 | <varlistentry id="text2gif-libungif">
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407 | <term><command>text2gif</command></term>
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408 | <listitem>
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409 | <para>generate GIF images out of regular text in 8x8 font.</para>
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410 | <indexterm zone="libungif text2gif-libungif">
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411 | <primary sortas="b-text2gif">text2gif</primary>
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412 | </indexterm>
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413 | </listitem>
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414 | </varlistentry>
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415 |
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416 | </variablelist>
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417 |
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418 | </sect2>
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419 |
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420 | </sect1>
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