1. Introduction

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

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.

Note, only software rendering is supported; there is no hardware acceleration.

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

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

For more information about fbdev, see the Framebuffer Howto

2. Compilation

To compile Mesa with support for the glFBDev interface:

   XXX todo

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

3. Compiling and linking glFBDev programs

xxx todo

4. Running glFBDev programs

First, you need to have a working fbdev environment. See the Framebuffer Howto for information.

Programs must be run with root permission.