source: archive/cogl.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;

  <!-- Editors, update this for new releases as needed -->
  <!ENTITY cogl-minor "1.22">

  <!ENTITY cogl-download-http "&gnome-download-http;/cogl/&cogl-minor;/cogl-&cogl-version;.tar.xz">
  <!ENTITY cogl-download-ftp  "&gnome-download-ftp;/cogl/&cogl-minor;/cogl-&cogl-version;.tar.xz">
  <!ENTITY cogl-md5sum        "7dd8b2e24171ef7399f851cea144b569">
  <!ENTITY cogl-size          "1.7 MB">
  <!ENTITY cogl-buildsize     "69 MB (add 2 MB for tests)">
  <!ENTITY cogl-time          "0.3 SBU (Using parallelism=4; add 0.2 SBU for tests)">
  <!-- Timing may depend on the capabilities and speed of the graphics card.
       The timing for 1.22.8 was taken on an Intel-based system, with HD Graphics
       530 on a Skylake i5-6600k.-->
]>

<sect1 id="cogl" xreflabel="Cogl-&cogl-version;">
  <?dbhtml filename="cogl.html"?>


  <title>Cogl-&cogl-version;</title>

  <indexterm zone="cogl">
    <primary sortas="a-Cogl">Cogl</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to Cogl</title>

    <para>
      <application>Cogl</application> is a modern 3D graphics API with associated
      utility APIs designed to expose the features of 3D graphics hardware using
      a direct state access API design, as opposed to the state-machine style
      of OpenGL.
    </para>

    &lfs120_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Download (HTTP): <ulink url="&cogl-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download (FTP): <ulink url="&cogl-download-ftp;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &cogl-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &cogl-size;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated disk space required: &cogl-buildsize;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated build time: &cogl-time;
        </para>
      </listitem>
    </itemizedlist>

<!-- No longer required with 1.22.8
    <bridgehead renderas="sect3">Additional Downloads</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Required patch:
          <ulink url="&patch-root;/cogl-&cogl-version;-mesa_20_fixes-1.patch"/>
        </para>
      </listitem>
    </itemizedlist>
-->

    <bridgehead renderas="sect3">Cogl Dependencies</bridgehead>

    <bridgehead renderas="sect4">Required</bridgehead>
    <para role="required">
      <xref linkend="cairo"/>,
      <xref linkend="gdk-pixbuf"/>,
      <xref linkend="glu"/>,
      <xref linkend="mesa"/>,
      <xref linkend="pango"/>, and
      <xref linkend="wayland"/>
    </para>

    <bridgehead renderas="sect4">Recommended</bridgehead>
    <para role="recommended">
      <xref linkend="gobject-introspection"/>
    </para>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional">
      <xref linkend="gst10-plugins-base"/>,
      <xref linkend="gtk-doc"/>, and
      <xref linkend="sdl2"/>
    </para>

  </sect2>

  <sect2 role="installation">
    <title>Installation of Cogl</title>

<!--
    <para>
      First fix an issue introduced by mesa-20.x and later:
    </para>

<screen><userinput>patch -Np1 -i ../cogl-&cogl-version;-mesa_20_fixes-1.patch</userinput></screen>
-->

    <para>
      Install <application>Cogl</application> by running the following
      commands:
    </para>

    &parallel_issues;

<screen><userinput>./configure --prefix=/usr  \
            --enable-gles1 \
            --enable-gles2 \
            --enable-{kms,wayland,xlib}-egl-platform \
            --enable-wayland-egl-server              &amp;&amp;
make</userinput></screen>

    <para>
      All of the tests except for the ES2 and ES2-NPT tests are broken due to
      slight behavior changes in Mesa. To test the results anyway, issue:
      <command>make check</command>. The tests should be run from an X terminal
      on a hardware accelerated Xorg Server. A few tests will use all CPUs in
      parallel, regardless of parallellism settings.
      <!-- I found this on my system with an NVIDIA GPU, but running the tests
           on an 11.3 system with an Intel GPU provides the same results. -->
    </para>

    <para>
      Now, as the <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>make install</userinput></screen>

  </sect2>

  <sect2 role="commands">
    <title>Command Explanations</title>

    <para>
      <parameter>--enable-gles1</parameter>: This switch enables support
      for OpenGL ES 1.1.
    </para>

    <para>
      <parameter>--enable-gles2</parameter>: This switch enables support
      for OpenGL ES 2.0.
    </para>

    <para>
      <parameter>--enable-{kms,wayland,xlib}-egl-platform</parameter>:
      These switches enable support for KMS, Wayland and Xlib EGL platforms.
      They are required for <application>GNOME</application> Wayland support.
    </para>

    <para>
      <parameter>--enable-wayland-egl-server</parameter>: This switch
      enables <application>Cogl</application>'s Wayland Server API which is
      required for <application>GNOME</application> Wayland support.
    </para>

    <para>
      <option>--enable-cogl-gst</option>: This switch enables gstreamer support.
    </para>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
      href="../../xincludes/gtk-doc-rebuild.xml"/>

  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Libraries</segtitle>
      <segtitle>Installed Directories</segtitle>

      <seglistitem>
        <seg>
          None
        </seg>
        <seg>
          libcogl-gles2.so,
          libcogl-pango.so,
          libcogl-path.so, and
          libcogl.so, and optional libraries
          libcogl-gst.so and /usr/lib/gstreamer-1.0/libgstcogl.so
       </seg>
        <seg>
         /usr/include/cogl and
         /usr/share/cogl
       </seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="libcogl-gles2">
        <term><filename class="libraryfile">libcogl-gles2.so</filename></term>
        <listitem>
          <para>
            is the OpenGL ES 2.0 integration library for
            <application>Cogl</application>
          </para>
          <indexterm zone="cogl libcogl-gles2">
            <primary sortas="c-libcogl-gles2">libcogl-gles2.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libcogl-pango">
        <term><filename class="libraryfile">libcogl-pango.so</filename></term>
        <listitem>
          <para>
            is the <application>Pango</application> integration library
            for <application>Cogl</application>
          </para>
          <indexterm zone="cogl libcogl-pango">
            <primary sortas="c-libcogl-pango">libcogl-pango.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libcogl">
        <term><filename class="libraryfile">libcogl.so</filename></term>
        <listitem>
          <para>
            is an object oriented GL/GLES Abstraction/Utility Layer library
          </para>
          <indexterm zone="cogl libcogl">
            <primary sortas="c-libcogl">libcogl.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>