brkho
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mesa


			
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<TITLE>Mesa glFBDev Driver</TITLE>

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<center><H1>Mesa glFBDev Driver</H1></center>


<H1>1. Introduction</H1>

<p>
The GLFBDev driver interface allows one to do OpenGL rendering into a
framebuffer managed with the Linux's fbdev interface.
</p>

<p>
Basically, the programmer uses the fbdev functions to initialize the
graphics hardware and setup the framebuffer.
Then, using a calls to Mesa's glFBDev API functions, one can render
into the framebuffer with the OpenGL API functions.
</p>

<p>
Note, only software rendering is supported; there is no hardware
acceleration.
</p>


<p>
The GL/glfbdev.h header file defines the glFBDev interface.
</p>

<p>
The progs/fbdev/glfbdevtest.c demonstrates how to use the glFBDev interface.
</p>

<p>
For more information about fbdev, see the
<a href="http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html" target="_parent">
Framebuffer Howto</a>
</p>


<h1>2. Compilation</h1>

<p>
To compile Mesa with support for the glFBDev interface:
<pre>
   XXX todo
</pre>

<p>
When compilation is finished look in progs/glfbdev/ for the glfbdevtest demo.
</p>

</p>
xxx todo
</p>


<h1>3. Compiling and linking glFBDev programs</h1>

<p>
xxx todo
</p>


<h1>4. Running glFBDev programs</h1>

<p>
First, you need to have a working fbdev environment.
See the
<a href="http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html" target="_parent">
Framebuffer Howto</a> for information.
</p>

<p>
Programs must be run with root permission.
</p>

</p>


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