Display using Glide library
~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. manpage:: 7 display-glide


Synopsis
--------

::

  display-glide:<card>


Description
------------

Uses the Glide library to display fullscreen on a 3DFX graphics card.


Options
-------


The 3DFX :p:`card` to use can be optionally specified as a cardinal
number minus one.  (e.g. `0` means the first card, `1` the second,


Environment variables
---------------------

`GGI_GLIDE_MAXFREQ`
    specifies the maximum update frequency your monitor can handle (in
    Hz). Default is 70Hz.

`GGI_GLIDE_MAXHFREQ`
    specifies the maximum horizontal frequency your monitor can handle
    (in kHz). Default is 48kHz.

`GGI_GLIDE_HALTONSWITCH`
    if this is set applications will be halted on console
    switchaway. The default is to continue running.


Features
--------


- DirectBuffer never available.
- Accelerated, one of the fastest targets when it comes to
  drawing-primitives.
- Multiple frames.
