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SDL-Specific Command-line Options
=================================
This section contains configuration options that are specific to any build
supported by SDL (including Windows when built with SDL instead of native).
Performance Options
-------------------
.. _mame-scommandline-sdlvideofps:
**-[no]sdlvideofps**
Enable output of benchmark data on the SDL video subsystem, including your
system’s video driver, X server (if applicable), and OpenGL stack in
**-video opengl** mode.
Video Options
-------------
.. _mame-scommandline-centerh:
**-[no]centerh**
Center horizontally within the view area. Default is ON (**-centerh**).
.. _mame-scommandline-centerv:
**-[no]centerv**
Center vertically within the view area. Default is ON (**-centerv**).
Video Soft-Specific Options
---------------------------
.. _mame-scommandline-scalemode:
**-scalemode**
Scale mode: none, async, yv12, yuy2, yv12x2, yuy2x2 (**-video soft** only).
Default is *none*.
SDL Keyboard Mapping
--------------------
.. _mame-scommandline-keymap:
**-keymap**
Enable keymap. Default is OFF (**-nokeymap**)
.. _mame-scommandline-keymapfile:
**-keymap_file** *<file>*
Keymap file name. Default is ``keymap.dat``.
SDL Input Options
--------------------
.. _mame-scommandline-enabletouch:
**-enable_touch**
Enable support for touch input. If this option is switched off, mouse input
simulated from touch devices will be used instead. Default is OFF
(**-noenable_touch**)
.. _mame-scommandline-sixaxis:
**-sixaxis**
Use special handling for PlayStation 3 SixAxis controllers. May cause
undesirable behaviour with other controllers. Only affects the ``sdljoy``
joystick provider. Default is OFF (**-nosixaxis**)
SDL Lightgun Mapping
--------------------
.. _mame-scommandline-lightgunindex:
|
| **-lightgun_index1** *<name>*
| **-lightgun_index2** *<name>*
| ...
| **-lightgun_index8** *<name>*
|
Device name or ID mapped to a given lightgun slot.
SDL Low-level Driver Options
----------------------------
.. _mame-scommandline-videodriver:
**-videodriver** *<driver>*
SDL video driver to use ('x11', 'directfb', ... or '*auto*' for SDL default)
.. _mame-scommandline-audiodriver:
**-audiodriver** *<driver>*
SDL audio driver to use ('alsa', 'arts', ... or '*auto*' for SDL default)
.. _mame-scommandline-gllib:
**-gl_lib** *<driver>*
Alternative **libGL.so** to use; '*auto*' for system default
|