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[docs] Document envvars and command line switches

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Clutter uses checks on various environment variables and installs
various command line switches. The API reference should list them
and document them both.
This commit is contained in:
Emmanuele Bassi 2009-02-23 13:44:03 +00:00
parent 7d181636ed
commit 0bc1f36ead
3 changed files with 177 additions and 3 deletions
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6
doc/reference/clutter/Makefile.am
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@ -103,7 +103,8 @@ content_files= \
clutter-animation-tutorial.xml \
creating-behaviours.xml \
clutter-overview.xml \
building-clutter.xml
building-clutter.xml \
running-clutter.xml
# SGML files where gtk-doc abbrevations (#GtkWidget) are expanded
# These files must be listed here *and* in content_files
@ -113,7 +114,8 @@ expand_content_files= \
clutter-animation-tutorial.xml \
creating-behaviours.xml \
clutter-overview.xml \
building-clutter.xml
building-clutter.xml \
running-clutter.xml
# CFLAGS and LDFLAGS for compiling gtkdoc-scangobj with your library.
# Only needed if you are using gtkdoc-scangobj to dynamically query widget

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doc/reference/clutter/clutter-docs.xml
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@ -43,8 +43,8 @@
</bookinfo>
<xi:include href="xml/clutter-overview.xml"/>
<xi:include href="xml/building-clutter.xml"/>
<xi:include href="xml/running-clutter.xml"/>
<part id="clutterbase">
<title>Clutter Core Reference</title>

172
doc/reference/clutter/running-clutter.xml Normal file
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@ -0,0 +1,172 @@
<part id="running-clutter">
<partinfo>
<author>
<firstname>Emmanuele</firstname>
<surname>Bassi</surname>
<affiliation>
<address>
<email>ebassi@linux.intel.com</email>
</address>
</affiliation>
</author>
</partinfo>
<title>Running Clutter</title>
<partintro>
<section id="environment-variables">
<title>Environment Variables</title>
<para>
Clutter automatically checks environment variables during
its initialization. These environment variables are meant
as debug tools, overrides for default behaviours or to
address known hardware issues:
</para>
<variablelist>
<varlistentry>
<term>CLUTTER_TEXT_DIRECTION</term>
<listitem>
<para>Forces the text direction of every Pango layout
inside Clutter. Valid values are: ltr or rtl</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CLUTTER_SHOW_FPS</term>
<listitem>
<para>Prints out the frames per second achieved by Clutter.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CLUTTER_DEFAULT_FPS</term>
<listitem>
<para>Sets the default framerate.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CLUTTER_DISABLE_MIPMAPPED_TEXT</term>
<listitem>
<para>Disables mipmapping when rendering text.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CLUTTER_FUZZY_PICK</term>
<listitem>
<para>Enables "fuzzy picking".</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CLUTTER_DEBUG</term>
<listitem>
<para>Enables debugging modes for Clutter.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>COGL_DEBUG</term>
<listitem>
<para>Enables debugging modes for COGL.</para>
</listitem>
</varlistentry>
</variablelist>
<para>On the GLX backend there is also:</para>
<variablelist>
<varlistentry>
<term>CLUTTER_VBLANK</term>
<listitem>
<para>Selects the sync-to-vblank mode to be used.
Valid values are: none, dri or glx</para>
</listitem>
</varlistentry>
</variablelist>
</section>
<section id="command-line">
<title>Command Line Arguments</title>
<para>Similarly to the environment variables, Clutter also installs
command line switches that are parsed during initialization:</para>
<variablelist>
<varlistentry>
<term>--clutter-show-fps</term>
<listitem><para>Equivalent of CLUTTER_SHOW_FPS. Prints the
current rendering speed in frames per second.</para></listitem>
</varlistentry>
<varlistentry>
<term>--clutter-default-fps=FPS</term>
<listitem><para>Equivalent of CLUTTER_DEFAULT_FPS. Sets the
default framerate.</para></listitem>
</varlistentry>
<varlistentry>
<term>--clutter-text-direction=DIRECTION</term>
<listitem><para>Equivalent of CLUTTER_TEXT_DIRECTION. Sets the
direction for the text.</para></listitem>
</varlistentry>
<varlistentry>
<term>--clutter-disable-mipmapped-text</term>
<listitem><para>Equivalent of CLUTTER_DISABLE_MIPMAPPED_TEXT.
Disables mipmapping when rendering text.</para></listitem>
</varlistentry>
<varlistentry>
<term>--clutter-use-fuzzy-picking</term>
<listitem><para>Equivalent of CLUTTER_FUZZY_PICK. Enables
"fuzzy" picking.</para></listitem>
</varlistentry>
<varlistentry>
<term>--clutter-debug=FLAGS</term>
<listitem><para>Equivalent of CLUTTER_DEBUG. Sets FLAGS as the
Clutter debugging flags.</para></listitem>
</varlistentry>
<varlistentry>
<term>--clutter-no-debug=FLAGS</term>
<listitem><para>Unsets FLAGS from the Clutter debugging
flags.</para></listitem>
</varlistentry>
<varlistentry>
<term>--cogl-debug=FLAGS</term>
<listitem><para>Equivalent of COGL_DEBUG. Sets FLAGS as the
COGL debugging flags.</para></listitem>
</varlistentry>
<varlistentry>
<term>--cogl-no-debug=FLAGS</term>
<listitem><para>Unsets FLAGS from the COGL debugging
flags.</para></listitem>
</varlistentry>
</variablelist>
<para>The X11 backends also have the following command line
options:</para>
<variablelist>
<varlistentry>
<term>--display=DISPLAY</term>
<listitem><para>Sets the X11 display to use.</para></listitem>
</varlistentry>
<varlistentry>
<term>--screen=SCREEN</term>
<listitem><para>Sets the X11 screen number to use.</para></listitem>
</varlistentry>
<varlistentry>
<term>--synch</term>
<listitem><para>Make X11 calls synchronous.</para></listitem>
</varlistentry>
</variablelist>
</section>
<para>The GLX backend also has the following command line option:</para>
<variablelist>
<varlistentry>
<term>--vblank=METHOD</term>
<listitem><para>Equivalent of CLUTTER_VBLANK. Sets the sync-to-vblank
method to be used.</para></listitem>
</varlistentry>
</variablelist>
</partintro>
</part>