source: x/installing/mesa.xml@ 56be7ef2

<?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;

  <!ENTITY mesa-download-http " ">
  <!ENTITY mesa-download-ftp  "ftp://ftp.freedesktop.org/pub/mesa/&mesa-version;/mesa-&mesa-version;.tar.xz">
  <!ENTITY mesa-md5sum        "1113699c714042d8c4df4766be8c57d8">
  <!ENTITY mesa-size          "8.2 MB">
  <!ENTITY mesa-buildsize     "348 MB (with tests and docs)">
  <!ENTITY mesa-time          "3.7 SBU (with tests and docs - all with parallelism = 4),">
]>

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

  <sect1info>
    <othername>$LastChangedBy$</othername>
    <date>$Date$</date>
  </sect1info>

  <title>Mesa-&mesa-version;</title>

  <indexterm zone="mesa">
    <primary sortas="a-Mesa">Mesa</primary>
  </indexterm>

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

    <para>
      <application>Mesa</application> is an OpenGL compatible 3D graphics
      library.
    </para>

    &lfs7a_checked;

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

    <bridgehead renderas="sect3">Additional Downloads</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Recommended patch:
          <ulink
            url="&patch-root;/mesa-&mesa-version;-add_xdemos-1.patch"/>
          (installs 2 demo programs for testing Mesa - not needed if you
          install the <ulink url="ftp://ftp.freedesktop.org/pub/mesa/demos/">
          mesa-demos</ulink> package)
        </para>
      </listitem>
    </itemizedlist>

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

    <bridgehead renderas="sect4">Required</bridgehead>
    <para role="required">
      <xref linkend="xorg7-lib"/>,
      <xref linkend="libdrm"/>, and
      <xref linkend="python2"/>
    </para>

    <bridgehead renderas="sect4">Recommended</bridgehead>
    <para role="recommended">
      <xref linkend="elfutils"/> (required for the radeonsi driver),
      
      <phrase revision="systemd"><xref linkend="libva"/> (to build drivers for 
      supported hardware, note that there is a circular dependency. You must
      build <application>libva</application> first without EGL and GLX support,
      install this package, and rebuild <application>libva</application>.),</phrase>
      
      <xref linkend="libvdpau"/> (to build VDPAU drivers),
      
      <xref linkend="llvm"/> (required for Gallium3D r300 and radeonsi
      drivers and for the llvmpipe software rasterizer. See
      <ulink url="http://www.mesa3d.org/systems.html"/> for more information.)
    </para>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional">
      <xref linkend="libgcrypt"/>,
      <xref linkend="nettle"/>,
      <xref linkend="wayland"/> (required for
        <xref linkend='plasma5-build'/>
          <phrase revision="systemd">,</phrase>
          <phrase revision="sysv">and</phrase>
        <xref linkend='lxqt'/>
          <phrase revision="systemd">, and GNOME</phrase>),
      
      <ulink url="ftp://ftp.freedesktop.org/pub/mesa/demos/">mesa-demos</ulink>
      (provides more than 300 extra demos to test
      <application>Mesa</application>; this includes the same programs added by
      the patch above), and
      
      <ulink url="http://omxil.sourceforge.net/">Bellagio OpenMAX Integration
      Layer</ulink> (for mobile platforms)
    </para>

    <note>
      <para>
        The instructions below assume that <application>elfutils</application>
        and <application>LLVM</application> with the r600/amdgpu and host 
        backends are installed. You will need to modify the instructions if you
        choose not to install them.  For an explanation of Gallium3D see
        <ulink url="https://en.wikipedia.org/wiki/Gallium3D"/>.
      </para>
    </note>

    <para condition="html" role="usernotes">User Notes:
      <ulink url="&blfs-wiki;/mesa"/>
    </para>
  </sect2>

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

    <para>
      If you have downloaded the xdemos patch (needed if testing the Xorg
      installation per BLFS instructions), apply it by running the following
      command:
    </para>

<screen><userinput>patch -Np1 -i ../mesa-&mesa-version;-add_xdemos-1.patch</userinput></screen>

   <para>Now, select the drivers you wish to install.  The available drivers
   are i915, ilo, nouveau, r300, r600, radeonsi, freedreno, svga, swrast, vc4,
   and virgl.  If the Gallium drivers are not specified, the default is
   'r300,r600,svga,swrast'. Modify the command below for any desired drivers.
   The listed drivers below will cover most modern video cards.  For help in
   selecting drivers see 
   <ulink url='http://www.mesa3d.org/systems.html'/>.</para>

<screen><userinput>GLL_DRV="i915,r600,nouveau,radeonsi,svga,swrast"</userinput></screen>

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

    <note>
      <para>
        Add wayland to the <parameter>--with-egl-platforms</parameter> switch
        below if you plan on building
        <xref linkend='plasma5-build'/><phrase revision="systemd">,</phrase>
        <phrase revision="sysv">or</phrase>
        <xref linkend='lxqt'/><phrase revision="systemd">, or GNOME</phrase>.
      </para>
    </note>

<screen><userinput>sed -i "/pthread-stubs/d" configure.ac      &amp;&amp;
sed -i "/seems to be moved/s/^/: #/" bin/ltmain.sh &amp;&amp;

./autogen.sh CFLAGS='-O2' CXXFLAGS='-O2'    \
            --prefix=$XORG_PREFIX           \
            --sysconfdir=/etc               \
            --enable-texture-float          \
            --enable-osmesa                 \
            --enable-xa                     \
            --enable-glx-tls                \
            --with-egl-platforms="drm,x11"  \
            --with-gallium-drivers=$GLL_DRV &amp;&amp;

unset GLL_DRV &amp;&amp;

make</userinput></screen>

    <para>
      If you have applied the xdemos patch, build the demo programs by
      running the following command:
    </para>

<screen><userinput>make -C xdemos DEMOS_PREFIX=$XORG_PREFIX</userinput></screen>

    <para>
      To test the results, issue: <command>make check</command>.
    </para>

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

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

    <para>
      If you have built the demo programs, install them by running the
      following command as the
      <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>make -C xdemos DEMOS_PREFIX=$XORG_PREFIX install</userinput></screen>

    <para>
      If desired, install the optional documentation by running
      the following commands as the
      <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>install -v -dm755 /usr/share/doc/mesa-&mesa-version; &amp;&amp;
cp -rfv docs/* /usr/share/doc/mesa-&mesa-version;</userinput></screen>

  </sect2>

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

    <para>
      <command>sed -i ... configure.ac</command>: This sed removes a dependency
      on the <application>libpthread-stubs</application> package which is
      useless on Linux.
    </para>

    <para>
      <command>sed -i ... bin/ltmain.sh</command>: This sed silences several
      useless and annoying warnings from libtool.
    </para>

    <para>
      <parameter>CFLAGS="-O2" CXXFLAGS="-O2"</parameter>: By default,
      <application>Autoconf</application> sets CFLAGS and CXXFLAGS to
      "-g -O2". That results in binaries and libraries being built with
      debugging symbols which make them bigger. Override the default
      flags to omit the -g compiler flag so the final libraries are smaller.
    </para>

    <para>
      <parameter>--enable-texture-float</parameter>: This switch enables
      floating-point textures and render buffers. Please consult
      <filename>docs/patents.txt</filename> to see if there are
      any legal issues if you use this feature.
    </para>

    <para>
      <parameter>--enable-osmesa</parameter>: This switch enables building
      the <filename class="libraryfile">libOSMesa</filename> library.
    </para>

    <para>
      <parameter>--enable-xa</parameter>: This switch enables building the
      XA X Acceleration API (Required for VMware 3D Driver).
    </para>

    <para>
      <parameter>--enable-gbm</parameter>: This switch enables building the
      <application>Mesa</application> Graphics Buffer Manager library.
    </para>

    <para>
      <parameter>--enable-glx-tls</parameter>: This switch enables TLS (Thread Local
      Storage) support in GLX.
    </para>

    <para>
      <parameter>--with-egl-platforms="..."</parameter>: This parameter
      controls which platforms EGL will be built for. Available
      platforms are drm, x11 and wayland.
    </para>

    <para>
      <parameter>--with-gallium-drivers="..."</parameter>: This parameter
      controls which Gallium3D drivers should be built. 
    </para>

    <para revision="sysv">
      <option>--enable-sysfs</option>: Use this switch to enable simple PCI
      identification method, required for building DRI on systems without udev.
    </para>

  </sect2>

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

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

      <seglistitem>
        <seg>
          glxgears and glxinfo
        </seg>
        <seg>
          libEGL.so,
          libgbm.so,
          libglapi.so,
          libGLESv1_CM.so,
          libGLESv2.so,
          libGL.so,
          libOSMesa.so,
          libswrAVX.so,
          libswrAVX2.so,
          libwayland-egl.so (if built with <application>Wayland</application>)
          libxatracker.so,
          libXvMCnouveau.so,
          and libXvMCr600.so
        </seg>
        <seg>
          $XORG_PREFIX/{include/{EGL,GL,GLES,GLES2,GLES3,KHR},lib/{dri,vdpau}}
          and
          /usr/share/doc/mesa-&mesa-version; (optional)
        </seg>
      </seglistitem>
    </segmentedlist>

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

      <varlistentry id="glxgears">
        <term><command>glxgears</command></term>
        <listitem>
          <para>
            is a GL demo useful for troubleshooting graphics
            problems.
          </para>
          <indexterm zone="mesa glxgears">
            <primary sortas="b-glxgears">glxgears</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="glxinfo">
        <term><command>glxinfo</command></term>
        <listitem>
          <para>
            is a diagnostic program that displays information about the
            graphics hardware and installed GL libraries.
          </para>
          <indexterm zone="mesa glxinfo">
            <primary sortas="b-glxinfo">glxinfo</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libEGL">
        <term><filename class="libraryfile">libEGL.so</filename></term>
        <listitem>
          <para>
            provides a native platform graphics interface as
            defined by the EGL-1.4 specification.
          </para>
          <indexterm zone="mesa libEGL">
            <primary sortas="c-libGL">libEGL.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libgbm">
        <term><filename class="libraryfile">libgbm.so</filename></term>
        <listitem>
          <para>
            is the <application>Mesa</application> Graphics Buffer
            Manager library.
          </para>
          <indexterm zone="mesa libgbm">
            <primary sortas="c-libgbm">libgbm.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libGLESv1_CM">
        <term><filename class="libraryfile">libGLESv1_CM.so</filename></term>
        <listitem>
          <para>
            is the <application>Mesa</application> OpenGL ES 1.1 library.
          </para>
          <indexterm zone="mesa libGLESv1_CM">
            <primary sortas="c-libGLESv1_CM">libGLESv1_CM.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libGLES2">
        <term><filename class="libraryfile">libGLES2.so</filename></term>
        <listitem>
          <para>
            is the <application>Mesa</application> OpenGL ES 2.0 library.
          </para>
          <indexterm zone="mesa libGLES2">
            <primary sortas="c-libGLES2">libGLES2.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libGL">
        <term><filename class="libraryfile">libGL.so</filename></term>
        <listitem>
          <para>
            is the main <application>Mesa</application> OpenGL library.
          </para>
          <indexterm zone="mesa libGL">
            <primary sortas="c-libGL">libGL.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libOSMesa">
        <term><filename class="libraryfile">libOSMesa.so</filename></term>
        <listitem>
          <para>
            is the <application>Mesa</application> Off-screen Rendering library.
          </para>
          <indexterm zone="mesa libOSMesa">
            <primary sortas="c-libOSMesa">libOSMesa.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libxatracker">
        <term><filename class="libraryfile">libxatracker.so</filename></term>
        <listitem>
          <para>
            is the Xorg Gallium3D acceleration library.
          </para>
          <indexterm zone="mesa libxatracker">
            <primary sortas="c-libxatracker">libxatracker.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>
    </variablelist>

  </sect2>

</sect1>