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Document CLUTTER_BACKEND and CLUTTER_INPUT_BACKEND envvars

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The allowed values are determined at configure time, but we can list all
the possible values, and assume people will actually check.

https://bugzilla.gnome.org/show_bug.cgi?id=681300
This commit is contained in:
Emmanuele Bassi 2014-12-15 17:10:33 +00:00
parent cca0777b34
commit b5c8dae5a7
1 changed files with 38 additions and 0 deletions
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38
doc/reference/clutter/running-clutter.xml
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@ -26,6 +26,44 @@
</para>
<variablelist>
<varlistentry>
<term>CLUTTER_BACKEND</term>
<listitem>
<para>Changes the windowing system backend used by Clutter.
The allowed values for this environment variable depend on
the configuration options used when compiling Clutter. The
available values are:</para>
<itemizedlist>
<listitem><simpara>x11, for the X11 backend</simpara></listitem>
<listitem><simpara>wayland, for the Wayland backend</simpara></listitem>
<listitem><simpara>win32, for the Windows backend</simpara></listitem>
<listitem><simpara>osx, for the MacOS X backend</simpara></listitem>
<listitem><simpara>gsk, for the GDK backend</simpara></listitem>
<listitem><simpara>eglnative, for the EGL/KMS backend</simpara></listitem>
<listitem><simpara>cex100, for the CEx100 backend</simpara></listitem>
</itemizedlist>
<para>All of the above options except for the <varname>eglnative</varname>
and <varname>cex100</varname> backends also have an input backend.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CLUTTER_INPUT_BACKEND</term>
<listitem>
<para>Changes the input backend used by Clutter.
The allowed values for this environment variable depend on
the configuration options used when compiling Clutter. The
available values are:</para>
<itemizedlist>
<listitem><simpara>tslib</simpara></listitem>
<listitem><simpara>evdev</simpara></listitem>
<listitem><simpara>null</simpara></listitem>
</itemizedlist>
<para>This environment variable is only useful for setting the input
backend when using a windowing system backend that does not have an
input API, like the <varname>eglnative</varname> or the <varname>cex100</varname>
windowing system backends.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CLUTTER_SCALE</term>
<listitem>