Mesa (master): mesa: Remove obsolete linux-fbdev software driver

Ian Romanick idr at kemper.freedesktop.org
Fri Aug 26 23:32:21 PDT 2011


Module: Mesa
Branch: master
Commit: 17645103aaa937d24d58d110b845200c637c2365
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=17645103aaa937d24d58d110b845200c637c2365

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Wed Aug 24 14:50:12 2011 -0700

mesa: Remove obsolete linux-fbdev software driver

Acked-by: Kristian Høgsberg <krh at bitplanet.net>
Acked-by: Marek Olšák <maraeo at gmail.com>
Acked-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Acked-by: Jakob Bornecrantz <jakob at vmware.com>
Acked-by: Dave Airlie <airlied at redhat.com>
Build-Tested-by: Jakob Bornecrantz <jakob at vmware.com>
Tested-by: Eugeni Dodonov <eugeni.dodonov at intel.com>

---

 configs/linux-fbdev              |   16 -
 docs/contents.html               |    2 -
 docs/fbdev-dri.html              |  343 ----------------
 docs/glfbdev-driver.html         |  111 -----
 docs/subset.html                 |    2 +-
 src/mesa/drivers/fbdev/Makefile  |   36 --
 src/mesa/drivers/fbdev/glfbdev.c |  828 --------------------------------------
 7 files changed, 1 insertions(+), 1337 deletions(-)

diff --git a/configs/linux-fbdev b/configs/linux-fbdev
deleted file mode 100644
index 45b482a..0000000
--- a/configs/linux-fbdev
+++ /dev/null
@@ -1,16 +0,0 @@
-# Configuration for Linux fbdev interface
-
-include $(TOP)/configs/linux
-
-CONFIG_NAME = linux-fbdev
-
-CFLAGS += -DUSE_GLFBDEV_DRIVER
-
-# Work around aliasing bugs - developers should comment this out
-CFLAGS += -fno-strict-aliasing
-
-DRIVER_DIRS = fbdev osmesa
-
-GL_LIB_DEPS = $(EXTRA_LIB_PATH) -lm -lpthread
-OSMESA_LIB_DEPS = -lm -lpthread
-
diff --git a/docs/contents.html b/docs/contents.html
index 46e458e..df0fb64 100644
--- a/docs/contents.html
+++ b/docs/contents.html
@@ -76,9 +76,7 @@ a:visited {
 <li><a href="helpwanted.html" target="MainFrame">Help Wanted</a>
 <li><a href="devinfo.html" target="MainFrame">Development Notes</a>
 <li><a href="sourcedocs.html" target="MainFrame">Source Documentation</a>
-<li><a href="fbdev-dri.html" target="MainFrame">fbdev/DRI Environment</a>
 <li><a href="subset.html" target="MainFrame">Mesa Subset Driver</a>
-<li><a href="glfbdev-driver.html" target="MainFrame">glFBDev Driver</a>
 <LI><A HREF="dispatch.html" target="MainFrame">GL Dispatch</A>
 <li><a href="cell.html" target="MainFrame">Cell Driver</A>
 </ul>
diff --git a/docs/fbdev-dri.html b/docs/fbdev-dri.html
deleted file mode 100644
index 0eea5e8..0000000
--- a/docs/fbdev-dri.html
+++ /dev/null
@@ -1,343 +0,0 @@
-<html><head><title>Mesa fbdev/DRI Environment</title>
-
-
-
-<link rel="stylesheet" type="text/css" href="mesa.css"></head>
-
-<body>
-
-<center><h1>Mesa fbdev/DRI Drivers</h1></center>
-<br>
-
-<h1><center>NOTE: this information is obsolete and will be removed at
-a future date</center></h1>
-
-<h1>1. Introduction</h1>
-
-<p>
-The fbdev/DRI environment supports hardware-accelerated 3D rendering without
-the X window system.  This is typically used for embedded applications.
-</p>
-
-<p>
-Contributors to this project include Jon Smirl, Keith Whitwell and Dave Airlie.
-</p>
-
-<p>
-Applications in the fbdev/DRI environment use
-the MiniGLX interface to choose pixel
-formats, create rendering contexts, etc.  It's a subset of the GLX and
-Xlib interfaces allowing some degree of application portability between
-the X and X-less environments.
-</p>
-
-<p>
-Note that this environment is not well-supported and these instructions
-may not be completely up to date.
-</p>
-<br>
-
-
-
-<h1>2. Compilation</h1>
-<p>
-
-<h2>2.1 glxproto</h2>
-
-Get <a href="http://cvsweb.xfree86.org/cvsweb/*checkout*/xc/include/GL/glxproto.h?rev=1.9">glxproto.h</a>. Copy it to the /mesa/include/GL/ directory.
-</p>
-
-<h2>2.2 libpciaccess</h2>
-<p>
-Check if you have libpciaccess installed:
-</p>
-
-<pre>pkg-config --modversion pciaccess
-</pre>
-<p>
-If not you can download the latest code from:
-</p>
-<pre>   git clone git://anongit.freedesktop.org/git/xorg/lib/libpciaccess
-</pre>
-<p>
-Run autogen.sh to generate a configure file. autogen.sh uses autoconf
-utility. This utility may not be installed with your linux distro,
-check if it is available. if not you can use your package manager or
-type:
-</p>
-<pre>sudo apt-get install autoconf
-</pre>
-The next step is to install the libpciaccess library. 
-<pre>make
-make install
-</pre>
-<p> Now your libpciaccess.a file is saved into /usr/local/lib
-directory. If you have a libpciaccess.a in /usr/lib you may simply copy
-and overwrite these files. Don't forget to copy libpciaccess.pc file to
-/usr/lib/pkgconfig, which is also located in /usr/local/lib/pkgconfig/.
-Or you may use the following system variables:
-</p>
-<pre>export LD_LIBRARY_PATH=/usr/local/lib
-export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
-</pre>
-
-<h2>2.3 drm</h2>
-
-<p>The next step is to compile the drm. DRM consists of two seperate parts,
-the DRM client library(lindrm.so) and kernel device module(such as
-radeon.ko). We need to make a small change in kernel device module. So
-you need to download the kernel source. You may choose the nearest
-mirror from www.kernel.org, or you are using Fedora Core 5, for
-example, you may need to install RPMs such as:
-kernel-smp-devel-2.16.15-1.2054_FC5.i686.rpm
-kernel-devel-2.6.15-1.2054_FC5.i686.rpm
-etc. You can find a detailed information <a href="http://www.howtoforge.com/kernel_compilation_fedora">here.</a>
-</p>
-
-<p>You will find drm_drv.c at /usr/src/LINUX-VERSION/drivers/char/drm/. Edit this code and comment out the following part:
-</p>
-
-<pre>
-   /* ||
-   ((ioctl-&gt;flags &amp; DRM_MASTER) &amp;&amp; !priv-&gt;master)*/
-</pre>
-Now you are ready to compile your kernel. If your kernel version is
-identical to the version you have compiled, you can simply over write
-your new "ko" files over older ones. If you have compiled a different
-kernel, you must configure your grub or lilo to be able to boot your
-new kernel. <p>
-You'll need fbdev header files.  Check with:
-</p>
-<pre>
-   ls -l /usr/include/linux/fb.
-</pre>
-<p>This file may be missing if you have not installed linux header files.
-
-
-<h2>2.4 Mesa</h2>
-
-</p><p>Get latest development Mesa sources from git repository
-(currently 7.1-prerelease)
-</p>
-<pre>
-   git clone git://anongit.freedesktop.org/git/mesa/mesa
-</pre>
-
-<p>You will need the makedepend utility which is a part of mesa project
-to build your linux-solo. You probably wont have this utility. You can
-download its source from following git repulsitory:
-</p>
-<pre>
-   git clone git://anongit.freedesktop.org/git/xorg/util/makedepend
-</pre>
-
-<p>Get the latest stable mesa version from SourceForge (currently 7.0.3)
-<a href="http://sourceforge.net/project/showfiles.php?group_id=3">http://sourceforge.net/project/showfiles.php?group_id=3</a>
-</p>
-
-<p>Copy the miniglx folder from 7.1-prerelease to 7.0.3.
-You may also extract GLUT to 7.0.3 version at this step. 
-</p>
-
-<p>Edit linux-solo.conf at /conf directory, just only compile the
-graphics driver you need, delete the unwanted drivers names from the
-list(some drivers are causing problems...)
-</p>
-<pre>
-   while(build==0)
-   {
-     make linux-solo
-
-     There will be some missing header files, copy them from 7.1-prerelease
-   }
-</pre>
-
-<p>
-When complete you should have the following:
-</p>
-<ul>
-<li>lib/libGL.so - the GL library which applications link with
-</li><li>lib/*_dri_so - DRI drivers
-</li><li>lib/miniglx.conf - sample MiniGLX config file
-</li><li>progs/miniglx/* - several MiniGLX sample programs
-</li></ul>
-
-To install these files into appropriate locations in system:
-<pre>
-   make install
-</pre>
-
-Now your openGL libraries are copied to /usr/local/lib and
-miniglx.conf is copied to /etc. You may copy them to /usr/lib and
-overwrite your old GL libraries. Or you may export following variable:
-
-<pre>
-   export LIBGL_DRIVERS_PATH=/usr/local/lib
-</pre>
-<br>
-
-
-<h1>3. Using fbdev/DRI</h1>
-
-<p>
-If an X server currently running, exit/stop it so you're working from
-the console. Following command shuts down the x window and also the multi user support.
-</p>
-<pre>
-   init 1
-</pre>
-
-<p>Also you may define the runlevel as 1 in "/etc/inittab". Your system
-will always start in single user mode and without x-window with this
-option set.
-</p><h2>3.1 Load Kernel Modules</h2>
-
-<p>
-You'll need to load the kernel modules specific to your graphics hardware.
-Typically, this consists of the agpgart module, an fbdev driver module
-and the DRM kernel module.
-</p>
-<p>
-As root, the kernel modules can be loaded as follows:
-</p>
-
-<p>
-If you have Intel i915/i945 hardware:
-</p>
-<pre>   modprobe agpgart            # the AGP GART module
-   modprobe intelfb            # the Intel fbdev driver
-   modprobe i915               # the i915/945 DRI kernel module
-</pre>
-
-<p>
-If you have ATI Radeon/R200 hardware:
-</p>
-<pre>   modprobe agpgart            # the AGP GART module
-   modprobe radeonfb           # the Radeon fbdev driver
-   modprobe radeon             # the Radeon DRI kernel module
-</pre>
-
-<p>
-If you have ATI Rage 128 hardware:
-</p>
-<pre>   modprobe agpgart            # the AGP GART module
-   modprobe aty128fb           # the Rage 128 fbdev driver
-   modprobe r128               # the Rage 128 DRI kernel module
-</pre>
-
-<p>
-If you have Matrox G200/G400 hardware:
-</p>
-<pre>   modprobe agpgart            # the AGP GART module
-   modprobe mgafb              # the Matrox fbdev driver
-   modprobe mga                # the Matrox DRI kernel module
-</pre>
-
-<p>
-To verify that the agpgart, fbdev and drm modules are loaded:
-</p>
-<pre>   ls -l /dev/agpgart /dev/fb* /dev/dri
-</pre>
-<p>
-Alternately, use lsmod to inspect the currently installed modules.
-If you have problems, look at the output of dmesg.
-</p>
-
-
-<h2>3.2 Configuration File</h2>
-
-<p>
-review/edit /etc/miniglx.conf.
-Alternately, the MINIGLX_CONF environment variable can be used to
-indicate the location of miniglx.conf
-</p>
-
-To determine the pciBusID value, run lspci and examine the output.
-For example:
-<p></p>
-<pre>   /sbin/lspci:
-   00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Express Chipset Family Graphics Controller (rev 04)
-</pre>
-<p>
-00:02.0 indicates that pciBusID should be PCI:0:2:0
-</p>
-
-
-
-
-<h2>3.3 Running fbdev/DRI Programs</h2>
-
-<p>
-Make sure your LD_LIBRARY_PATH environment variable is set to the
-location of the libGL.so library.  You may need to append other paths
-to LD_LIBRARY_PATH if libpciaccess.so is in a non-standard location,
-for example.
-</p>
-
-<p>
-Change to the <code>Mesa/progs/miniglx/</code> directory and
-start the sample_server program in the background:
-</p>
-<pre>   ./sample_server &amp;
-</pre>
-
-<p>
-Then try running the <code>miniglxtest</code> program:
-</p>
-<pre>   ./miniglxtest
-</pre>
-<p>
-You should see a rotating quadrilateral which changes color as it rotates.
-It will exit automatically after a bit.
-</p>
-
-<p>
-If you run other tests in the miniglx/ directory, you may want to run
-them from a remote shell so that you can stop them with ctrl-C.
-</p>
-<br>
-
-
-<h1>4.0 Troubleshooting</h1>
-
-<ol>
-<li>
-If you try to run miniglxtest and get the following:
-<br>
-<pre>   [miniglx] failed to probe chipset
-   connect: Connection refused
-   server connection lost
-</pre>
-It means that the sample_server process is not running.
-<br>
-<br>
-</li>
-</ol>
-
-
-<h1>5.0 Programming Information</h1>
-
-<p>
-OpenGL/Mesa is interfaced to fbdev via the MiniGLX interface.
-MiniGLX is a subset of Xlib and GLX API functions which provides just
-enough functionality to setup OpenGL rendering and respond to simple
-input events.
-</p>
-
-<p>
-Since MiniGLX is a subset of the usual Xlib and GLX APIs, programs written
-to the MiniGLX API can also be run on full Xlib/GLX implementations.
-This allows some degree of flexibility for software development and testing.
-</p>
-
-<p>
-However, the MiniGLX API is not binary-compatible with full Xlib/GLX.
-Some of the structures are different and some macros/functions work
-differently.
-See the GL/miniglx.h header file for details.
-</p>
-
-
-
-</body>
-</html>
diff --git a/docs/glfbdev-driver.html b/docs/glfbdev-driver.html
deleted file mode 100644
index 981df7c..0000000
--- a/docs/glfbdev-driver.html
+++ /dev/null
@@ -1,111 +0,0 @@
-<HTML>
-
-<TITLE>Mesa glFBDev Driver</TITLE>
-
-<link rel="stylesheet" type="text/css" href="mesa.css"></head>
-
-<BODY>
-
-<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>
-<p>
-You will need at minimum, a framebuffer device, check /dev/fb0
-</p>
-
-<h1>2. Compilation</h1>
-
-<p>
-To compile Mesa with support for the glFBDev interface:
-<pre>
-      make realclean
-      make linux-fbdev
-</pre>
-
-<p>
-When compilation is finished look in progs/glfbdev/ for the glfbdevtest demo.
-</p>
-<h1>3. Permissions</h1>
-
-<p>
-Typically /dev/fb/0 is grouped to the video group.  It may be useful to add
-your user to the video group so the demos will not have to be run as root.
-To use fbdevglut with the prefered tty input, you should add the user to the
-tty group as well
-<p>
-
-<h1>4. Using fbdevglut</h1>
-Almost all of the programs in the progs directory use glut, and they compile with fbdevglut.
-
-<p>
-To compile the redbook sample programs:
-<pre>
-       cd progs/redbook
-       make
-</pre>
-</p>
-<p>glut features not supported:
-<li>Overlays
-<li>Subwindows
-<li>Input devices other than Keyboard/Mouse
-<li>No support for GLUT_MULTISAMPLE, GLUT_STEREO, or GLUT_LUMINANCE
-<li>Cursor and Menu Support will flicker in GLUT_SINGLE mode
-
-<p>Keyboard input is read by opening /dev/tty and reading keycodes in medium raw mode.
-<p>Mouse input is read from env var MOUSE, or /dev/gpmdata and should be in ms3 format.
-To forward data in this format to /dev/gpmdata, run gpm with the -Rms3 option.
-<p> glutInit allows glut programs to pass parameters to the glut library, currently the
-following options are supported for fbdevglut:
-<p><li>-geometry widthxheight  --  This will force the resolution to be widthxheight instead of autodetecting.
-The modes are read from /etc/fb.modes
-<p><li>-bpp -- This will force the bitdepth to the one specified
-<p><li>-vt -- This allows you to specify the virtual terminal to attach keyboard input to.  It is useful to specify when running inside screen.
-<p><li>-mousespeed -- A floating point multiplication factor to increase mouse speed
-<p><li>-nomouse -- Disable mouse support
-<p><li>-nokeyboard -- Disable keyboard support (this will probably break mouse support as well)
-<p><li>-stdin -- Use stdin for input instead of attaching to kbd in medium-raw mode.
-This will make it impossible to detect keypresses like Shift+Tab, you will also need to specify -gpmmouse for mouse support.  This option can be used with a debugger, and it is possible to single step a program with gdb and set the FRAMEBUFFER environment variable to a different framebuffer for display.  The program will not be able to handle vt switching on it's own, so it will always display.
-<p><li>-gpmmouse -- This will attempt to connect to the /dev/gpmctl socket using liblow
-for mouse data.  Gpm does not provide this data when in graphics mode, so vt switching
-will briefly display text.  This mode typically has no initial mouse delay.
-<p><li>-- Ignore any additional arguments
-<p>Notes:
-<p>
-1. The mouse pointer flickers in single buffering mode, as it must be rendered in software.  Hopefully in the future there will be a way to access hardware cursors in fbdev devices.
-</p>
-</body>
-</html>
diff --git a/docs/subset.html b/docs/subset.html
index 4ac2ead..c706381 100644
--- a/docs/subset.html
+++ b/docs/subset.html
@@ -12,7 +12,7 @@
 In 2002/2003 Tungsten Graphics was contracted to develop a subset Mesa/Radeon
 driver for an embedded environment.  The result is a reduced-size DRI driver
 for the ATI R200 chip, for use with
-<a href="fbdev-dri.html">fbdev/DRI environment</a>.
+fbdev/DRI environment.
 </p>
 
 <p>
diff --git a/src/mesa/drivers/fbdev/Makefile b/src/mesa/drivers/fbdev/Makefile
deleted file mode 100644
index 5120e1a..0000000
--- a/src/mesa/drivers/fbdev/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-# src/mesa/drivers/fbdev/Makefile for libGL.so
-
-TOP = ../../../..
-
-include $(TOP)/configs/current
-
-
-SOURCES = glfbdev.c
-
-OBJECTS = $(SOURCES:.c=.o)
-
-INCLUDE_DIRS = \
-	-I$(TOP)/include \
-	-I$(TOP)/src/mapi \
-	-I$(TOP)/src/mesa \
-	-I$(TOP)/src/mesa/main
-
-CORE_MESA = $(TOP)/src/mesa/libmesa.a $(TOP)/src/mapi/glapi/libglapi.a
-
-
-.c.o:
-	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
-
-
-default: $(TOP)/$(LIB_DIR)/$(GL_LIB_NAME)
-
-
-$(TOP)/$(LIB_DIR)/$(GL_LIB_NAME): $(CORE_MESA) $(OBJECTS)
-	@ $(MKLIB) -o $(GL_LIB) -linker '$(CC)' -ldflags '$(LDFLAGS)' \
-		-major $(MESA_MAJOR) -minor $(MESA_MINOR) -patch $(MESA_TINY) \
-		-install $(TOP)/$(LIB_DIR) $(MKLIB_OPTIONS) \
-		$(CORE_MESA) $(OBJECTS) $(GL_LIB_DEPS)
-
-
-clean:
-	-rm -f $(OBJECTS)
diff --git a/src/mesa/drivers/fbdev/glfbdev.c b/src/mesa/drivers/fbdev/glfbdev.c
deleted file mode 100644
index 1e0ac4c..0000000
--- a/src/mesa/drivers/fbdev/glfbdev.c
+++ /dev/null
@@ -1,828 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.1
- *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/*
- * OpenGL (Mesa) interface for fbdev.
- * For info about fbdev:
- * http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html
- *
- * known VGA modes
- * Colours   640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200
- * --------+--------------------------------------------------------------
- *  4 bits |    ?       ?     0x302      ?        ?        ?         ?
- *  8 bits |  0x300   0x301   0x303    0x305    0x161    0x307     0x31C
- * 15 bits |    ?     0x310   0x313    0x316    0x162    0x319     0x31D
- * 16 bits |    ?     0x311   0x314    0x317    0x163    0x31A     0x31E
- * 24 bits |    ?     0x312   0x315    0x318      ?      0x31B     0x31F
- * 32 bits |    ?       ?       ?        ?      0x164      ?
- */
-
-#ifdef USE_GLFBDEV_DRIVER
-
-#include "GL/glfbdev.h"
-#include <linux/fb.h>
-#include "main/glheader.h"
-#include "main/buffers.h"
-#include "main/context.h"
-#include "main/extensions.h"
-#include "main/fbobject.h"
-#include "main/framebuffer.h"
-#include "main/imports.h"
-#include "main/renderbuffer.h"
-#include "main/texformat.h"
-#include "main/teximage.h"
-#include "main/texstore.h"
-#include "vbo/vbo.h"
-#include "swrast/swrast.h"
-#include "swrast_setup/swrast_setup.h"
-#include "tnl/tnl.h"
-#include "tnl/t_context.h"
-#include "tnl/t_pipeline.h"
-#include "drivers/common/driverfuncs.h"
-
-
-/**
- * Pixel formats we support:
- */
-#define PF_B8G8R8     1
-#define PF_B8G8R8A8   2
-#define PF_B5G6R5     3
-#define PF_B5G5R5     4
-
-
-/**
- * Derived from Mesa's struct gl_config class.
- */
-struct GLFBDevVisualRec {
-   struct gl_config glvisual;              /* base class */
-   struct fb_fix_screeninfo fix;
-   struct fb_var_screeninfo var;
-   int pixelFormat;
-};
-
-/**
- * Derived from Mesa's struct gl_framebuffer class.
- */
-struct GLFBDevBufferRec {
-   struct gl_framebuffer glframebuffer;    /* base class */
-   GLFBDevVisualPtr visual;
-   struct fb_fix_screeninfo fix;
-   struct fb_var_screeninfo var;
-   size_t size;                    /* color buffer size in bytes */
-   GLuint bytesPerPixel;
-};
-
-/**
- * Derived from Mesa's struct gl_context class.
- */
-struct GLFBDevContextRec {
-   struct gl_context glcontext;            /* base class */
-   GLFBDevVisualPtr visual;
-   GLFBDevBufferPtr drawBuffer;
-   GLFBDevBufferPtr readBuffer;
-   GLFBDevBufferPtr curBuffer;
-};
-
-/**
- * Derived from Mesa's gl_renderbuffer class.
- */
-struct GLFBDevRenderbufferRec {
-   struct gl_renderbuffer Base;
-   GLubyte *bottom;                /* pointer to last row */
-   GLuint rowStride;               /* in bytes */
-   GLboolean mallocedBuffer;
-};
-
-
-/**********************************************************************/
-/* Internal device driver functions                                   */
-/**********************************************************************/
-
-
-static const GLubyte *
-get_string(struct gl_context *ctx, GLenum pname)
-{
-   (void) ctx;
-   switch (pname) {
-      case GL_RENDERER:
-         return (const GLubyte *) "Mesa glfbdev";
-      default:
-         return NULL;
-   }
-}
-
-
-static void
-update_state( struct gl_context *ctx, GLuint new_state )
-{
-   /* not much to do here - pass it on */
-   _swrast_InvalidateState( ctx, new_state );
-   _swsetup_InvalidateState( ctx, new_state );
-   _vbo_InvalidateState( ctx, new_state );
-   _tnl_InvalidateState( ctx, new_state );
-}
-
-
-static void
-get_buffer_size( struct gl_framebuffer *buffer, GLuint *width, GLuint *height )
-{
-   const GLFBDevBufferPtr fbdevbuffer = (GLFBDevBufferPtr) buffer;
-   *width = fbdevbuffer->var.xres;
-   *height = fbdevbuffer->var.yres;
-}
-
-
-/**
- * We only implement this function as a mechanism to check if the
- * framebuffer size has changed (and update corresponding state).
- */
-static void
-viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
-{
-   GLuint newWidth, newHeight;
-   struct gl_framebuffer *buffer;
-
-   buffer = ctx->WinSysDrawBuffer;
-   get_buffer_size( buffer, &newWidth, &newHeight );
-   if (buffer->Width != newWidth || buffer->Height != newHeight) {
-      _mesa_resize_framebuffer(ctx, buffer, newWidth, newHeight );
-   }
-
-   buffer = ctx->WinSysReadBuffer;
-   get_buffer_size( buffer, &newWidth, &newHeight );
-   if (buffer->Width != newWidth || buffer->Height != newHeight) {
-      _mesa_resize_framebuffer(ctx, buffer, newWidth, newHeight );
-   }
-}
-
-
-/*
- * Generate code for span functions.
- */
-
-/* 24-bit BGR */
-#define NAME(PREFIX) PREFIX##_B8G8R8
-#define RB_TYPE GLubyte
-#define SPAN_VARS \
-   struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb;
-#define INIT_PIXEL_PTR(P, X, Y) \
-   GLubyte *P = frb->bottom - (Y) * frb->rowStride + (X) * 3
-#define INC_PIXEL_PTR(P) P += 3
-#define STORE_PIXEL(DST, X, Y, VALUE) \
-   DST[0] = VALUE[BCOMP];  \
-   DST[1] = VALUE[GCOMP];  \
-   DST[2] = VALUE[RCOMP]
-#define FETCH_PIXEL(DST, SRC) \
-   DST[RCOMP] = SRC[2];  \
-   DST[GCOMP] = SRC[1];  \
-   DST[BCOMP] = SRC[0];  \
-   DST[ACOMP] = CHAN_MAX
-
-#include "swrast/s_spantemp.h"
-
-
-/* 32-bit BGRA */
-#define NAME(PREFIX) PREFIX##_B8G8R8A8
-#define RB_TYPE GLubyte
-#define SPAN_VARS \
-   struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb;
-#define INIT_PIXEL_PTR(P, X, Y) \
-   GLubyte *P = frb->bottom - (Y) * frb->rowStride + (X) * 4
-#define INC_PIXEL_PTR(P) P += 4
-#define STORE_PIXEL(DST, X, Y, VALUE) \
-   DST[0] = VALUE[BCOMP];  \
-   DST[1] = VALUE[GCOMP];  \
-   DST[2] = VALUE[RCOMP];  \
-   DST[3] = VALUE[ACOMP]
-#define STORE_PIXEL_RGB(DST, X, Y, VALUE) \
-   DST[0] = VALUE[BCOMP];  \
-   DST[1] = VALUE[GCOMP];  \
-   DST[2] = VALUE[RCOMP];
-#define FETCH_PIXEL(DST, SRC) \
-   DST[RCOMP] = SRC[2];  \
-   DST[GCOMP] = SRC[1];  \
-   DST[BCOMP] = SRC[0];  \
-   DST[ACOMP] = SRC[3]
-
-#include "swrast/s_spantemp.h"
-
-
-/* 16-bit BGR (XXX implement dithering someday) */
-#define NAME(PREFIX) PREFIX##_B5G6R5
-#define RB_TYPE GLubyte
-#define SPAN_VARS \
-   struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb;
-#define INIT_PIXEL_PTR(P, X, Y) \
-   GLushort *P = (GLushort *) (frb->bottom - (Y) * frb->rowStride + (X) * 2)
-#define INC_PIXEL_PTR(P) P += 1
-#define STORE_PIXEL(DST, X, Y, VALUE) \
-   DST[0] = ( (((VALUE[RCOMP]) & 0xf8) << 8) | (((VALUE[GCOMP]) & 0xfc) << 3) | ((VALUE[BCOMP]) >> 3) )
-#define FETCH_PIXEL(DST, SRC) \
-   DST[RCOMP] = ( (((SRC[0]) >> 8) & 0xf8) | (((SRC[0]) >> 11) & 0x7) ); \
-   DST[GCOMP] = ( (((SRC[0]) >> 3) & 0xfc) | (((SRC[0]) >>  5) & 0x3) ); \
-   DST[BCOMP] = ( (((SRC[0]) << 3) & 0xf8) | (((SRC[0])      ) & 0x7) ); \
-   DST[ACOMP] = CHAN_MAX
-
-#include "swrast/s_spantemp.h"
-
-
-/* 15-bit BGR (XXX implement dithering someday) */
-#define NAME(PREFIX) PREFIX##_B5G5R5
-#define RB_TYPE GLubyte
-#define SPAN_VARS \
-   struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb;
-#define INIT_PIXEL_PTR(P, X, Y) \
-   GLushort *P = (GLushort *) (frb->bottom - (Y) * frb->rowStride + (X) * 2)
-#define INC_PIXEL_PTR(P) P += 1
-#define STORE_PIXEL(DST, X, Y, VALUE) \
-   DST[0] = ( (((VALUE[RCOMP]) & 0xf8) << 7) | (((VALUE[GCOMP]) & 0xf8) << 2) | ((VALUE[BCOMP]) >> 3) )
-#define FETCH_PIXEL(DST, SRC) \
-   DST[RCOMP] = ( (((SRC[0]) >> 7) & 0xf8) | (((SRC[0]) >> 10) & 0x7) ); \
-   DST[GCOMP] = ( (((SRC[0]) >> 2) & 0xf8) | (((SRC[0]) >>  5) & 0x7) ); \
-   DST[BCOMP] = ( (((SRC[0]) << 3) & 0xf8) | (((SRC[0])      ) & 0x7) ); \
-   DST[ACOMP] = CHAN_MAX
-
-#include "swrast/s_spantemp.h"
-
-
-/**********************************************************************/
-/* Public API functions                                               */
-/**********************************************************************/
-
-
-const char *
-glFBDevGetString( int str )
-{
-   switch (str) {
-   case GLFBDEV_VENDOR:
-      return "Mesa Project";
-   case GLFBDEV_VERSION:
-      return "1.0.1";
-   default:
-      return NULL;
-   }
-}
-
-
-GLFBDevProc
-glFBDevGetProcAddress( const char *procName )
-{
-   struct name_address {
-      const char *name;
-      const GLFBDevProc func;
-   };
-   static const struct name_address functions[] = {
-      { "glFBDevGetString", (GLFBDevProc) glFBDevGetString },
-      { "glFBDevGetProcAddress", (GLFBDevProc) glFBDevGetProcAddress },
-      { "glFBDevCreateVisual", (GLFBDevProc) glFBDevCreateVisual },
-      { "glFBDevDestroyVisual", (GLFBDevProc) glFBDevDestroyVisual },
-      { "glFBDevGetVisualAttrib", (GLFBDevProc) glFBDevGetVisualAttrib },
-      { "glFBDevCreateBuffer", (GLFBDevProc) glFBDevCreateBuffer },
-      { "glFBDevDestroyBuffer", (GLFBDevProc) glFBDevDestroyBuffer },
-      { "glFBDevGetBufferAttrib", (GLFBDevProc) glFBDevGetBufferAttrib },
-      { "glFBDevGetCurrentDrawBuffer", (GLFBDevProc) glFBDevGetCurrentDrawBuffer },
-      { "glFBDevGetCurrentReadBuffer", (GLFBDevProc) glFBDevGetCurrentReadBuffer },
-      { "glFBDevSwapBuffers", (GLFBDevProc) glFBDevSwapBuffers },
-      { "glFBDevCreateContext", (GLFBDevProc) glFBDevCreateContext },
-      { "glFBDevDestroyContext", (GLFBDevProc) glFBDevDestroyContext },
-      { "glFBDevGetContextAttrib", (GLFBDevProc) glFBDevGetContextAttrib },
-      { "glFBDevGetCurrentContext", (GLFBDevProc) glFBDevGetCurrentContext },
-      { "glFBDevMakeCurrent", (GLFBDevProc) glFBDevMakeCurrent },
-      { NULL, NULL }
-   };
-   const struct name_address *entry;
-   for (entry = functions; entry->name; entry++) {
-      if (strcmp(entry->name, procName) == 0) {
-         return entry->func;
-      }
-   }
-   return _glapi_get_proc_address(procName);
-}
-
-
-GLFBDevVisualPtr
-glFBDevCreateVisual( const struct fb_fix_screeninfo *fixInfo,
-                     const struct fb_var_screeninfo *varInfo,
-                     const int *attribs )
-{
-   GLFBDevVisualPtr vis;
-   const int *attrib;
-   GLboolean dbFlag = GL_FALSE, stereoFlag = GL_FALSE;
-   GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits = 0;
-   GLint depthBits = 0, stencilBits = 0;
-   GLint accumRedBits = 0, accumGreenBits = 0;
-   GLint accumBlueBits = 0, accumAlphaBits = 0;
-   GLint numSamples = 0;
-
-   ASSERT(fixInfo);
-   ASSERT(varInfo);
-
-   vis = CALLOC_STRUCT(GLFBDevVisualRec);
-   if (!vis)
-      return NULL;
-
-   vis->fix = *fixInfo;  /* struct assignment */
-   vis->var = *varInfo;  /* struct assignment */
-
-   for (attrib = attribs; attrib && *attrib != GLFBDEV_NONE; attrib++) {
-      switch (*attrib) {
-      case GLFBDEV_DOUBLE_BUFFER:
-         dbFlag = GL_TRUE;
-         break;
-      case GLFBDEV_DEPTH_SIZE:
-         depthBits = attrib[1];
-         attrib++;
-         break;
-      case GLFBDEV_STENCIL_SIZE:
-         stencilBits = attrib[1];
-         attrib++;
-         break;
-      case GLFBDEV_ACCUM_SIZE:
-         accumRedBits = accumGreenBits = accumBlueBits = accumAlphaBits
-            = attrib[1];
-         attrib++;
-         break;
-      case GLFBDEV_LEVEL:
-         /* ignored for now */
-         break;
-      case GLFBDEV_MULTISAMPLE:
-         numSamples = attrib[1];
-         attrib++;
-         break;
-      case GLFBDEV_COLOR_INDEX:
-         /* Mesa no longer supports color-index rendering. */
-      default:
-         /* unexpected token */
-         free(vis);
-         return NULL;
-      }
-   }
-
-   redBits   = varInfo->red.length;
-   greenBits = varInfo->green.length;
-   blueBits  = varInfo->blue.length;
-   alphaBits = varInfo->transp.length;
-
-   if (fixInfo->visual == FB_VISUAL_TRUECOLOR ||
-       fixInfo->visual == FB_VISUAL_DIRECTCOLOR) {
-      if (varInfo->bits_per_pixel == 24
-          && varInfo->red.offset == 16
-          && varInfo->green.offset == 8
-          && varInfo->blue.offset == 0) {
-         vis->pixelFormat = PF_B8G8R8;
-      }
-      else if (varInfo->bits_per_pixel == 32
-               && varInfo->red.offset == 16
-               && varInfo->green.offset == 8
-               && varInfo->blue.offset == 0) {
-         vis->pixelFormat = PF_B8G8R8A8;
-      }
-      else if (varInfo->bits_per_pixel == 16
-               && varInfo->red.offset == 11
-               && varInfo->green.offset == 5
-               && varInfo->blue.offset == 0) {
-         vis->pixelFormat = PF_B5G6R5;
-      }
-      else if (varInfo->bits_per_pixel == 16
-               && varInfo->red.offset == 10
-               && varInfo->green.offset == 5
-               && varInfo->blue.offset == 0) {
-         vis->pixelFormat = PF_B5G5R5;
-      }
-      else {
-         _mesa_problem(NULL, "Unsupported fbdev RGB visual/bitdepth!\n");
-         free(vis);
-         return NULL;
-      }
-   }
-
-   if (!_mesa_initialize_visual(&vis->glvisual, dbFlag, stereoFlag,
-                                redBits, greenBits, blueBits, alphaBits,
-                                depthBits, stencilBits,
-                                accumRedBits, accumGreenBits,
-                                accumBlueBits, accumAlphaBits,
-                                numSamples)) {
-      /* something was invalid */
-      free(vis);
-      return NULL;
-   }
-
-   return vis;
-}
-
-
-void
-glFBDevDestroyVisual( GLFBDevVisualPtr visual )
-{
-   if (visual)
-      free(visual);
-}
-
-
-int
-glFBDevGetVisualAttrib( const GLFBDevVisualPtr visual, int attrib)
-{
-   /* XXX unfinished */
-   (void) visual;
-   (void) attrib;
-   return -1;
-}
-
-
-static void
-delete_renderbuffer(struct gl_renderbuffer *rb)
-{
-   struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb;
-   if (frb->mallocedBuffer) {
-      free(frb->Base.Data);
-   }
-   free(frb);
-}
-
-
-static GLboolean
-renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
-                     GLenum internalFormat, GLuint width, GLuint height)
-{
-   /* no-op: the renderbuffer storage is allocated just once when it's
-    * created.  Never resized or reallocated.
-    */
-   return GL_TRUE;
-}
-
-
-static struct GLFBDevRenderbufferRec *
-new_glfbdev_renderbuffer(void *bufferStart, const GLFBDevVisualPtr visual)
-{
-   struct GLFBDevRenderbufferRec *rb = CALLOC_STRUCT(GLFBDevRenderbufferRec);
-   if (rb) {
-      GLuint name = 0;
-      int pixelFormat = visual->pixelFormat;
-
-      _mesa_init_renderbuffer(&rb->Base, name);
-
-      rb->Base.Delete = delete_renderbuffer;
-      rb->Base.AllocStorage = renderbuffer_storage;
-
-      if (pixelFormat == PF_B8G8R8) {
-         rb->Base.GetRow = get_row_B8G8R8;
-         rb->Base.GetValues = get_values_B8G8R8;
-         rb->Base.PutRow = put_row_B8G8R8;
-         rb->Base.PutRowRGB = put_row_rgb_B8G8R8;
-         rb->Base.PutMonoRow = put_mono_row_B8G8R8;
-         rb->Base.PutValues = put_values_B8G8R8;
-         rb->Base.PutMonoValues = put_mono_values_B8G8R8;
-      }
-      else if (pixelFormat == PF_B8G8R8A8) {
-         rb->Base.GetRow = get_row_B8G8R8A8;
-         rb->Base.GetValues = get_values_B8G8R8A8;
-         rb->Base.PutRow = put_row_B8G8R8A8;
-         rb->Base.PutRowRGB = put_row_rgb_B8G8R8A8;
-         rb->Base.PutMonoRow = put_mono_row_B8G8R8A8;
-         rb->Base.PutValues = put_values_B8G8R8A8;
-         rb->Base.PutMonoValues = put_mono_values_B8G8R8A8;
-      }
-      else if (pixelFormat == PF_B5G6R5) {
-         rb->Base.GetRow = get_row_B5G6R5;
-         rb->Base.GetValues = get_values_B5G6R5;
-         rb->Base.PutRow = put_row_B5G6R5;
-         rb->Base.PutRowRGB = put_row_rgb_B5G6R5;
-         rb->Base.PutMonoRow = put_mono_row_B5G6R5;
-         rb->Base.PutValues = put_values_B5G6R5;
-         rb->Base.PutMonoValues = put_mono_values_B5G6R5;
-      }
-      else if (pixelFormat == PF_B5G5R5) {
-         rb->Base.GetRow = get_row_B5G5R5;
-         rb->Base.GetValues = get_values_B5G5R5;
-         rb->Base.PutRow = put_row_B5G5R5;
-         rb->Base.PutRowRGB = put_row_rgb_B5G5R5;
-         rb->Base.PutMonoRow = put_mono_row_B5G5R5;
-         rb->Base.PutValues = put_values_B5G5R5;
-         rb->Base.PutMonoValues = put_mono_values_B5G5R5;
-      }
-
-      rb->Base.InternalFormat = GL_RGBA;
-      rb->Base._BaseFormat = GL_RGBA;
-      rb->Base.DataType = GL_UNSIGNED_BYTE;
-      rb->Base.Data = bufferStart;
-
-      rb->rowStride = visual->var.xres_virtual * visual->var.bits_per_pixel / 8;
-      rb->bottom = (GLubyte *) bufferStart
-                 + (visual->var.yres - 1) * rb->rowStride;
-
-      rb->Base.Width = visual->var.xres;
-      rb->Base.Height = visual->var.yres;
-
-      /*
-      rb->Base.RedBits = visual->var.red.length;
-      rb->Base.GreenBits = visual->var.green.length;
-      rb->Base.BlueBits = visual->var.blue.length;
-      rb->Base.AlphaBits = visual->var.transp.length;
-      */
-
-      rb->Base.InternalFormat = pixelFormat;
-   }
-   return rb;
-}
-
-GLFBDevBufferPtr
-glFBDevCreateBuffer( const struct fb_fix_screeninfo *fixInfo,
-                     const struct fb_var_screeninfo *varInfo,
-                     const GLFBDevVisualPtr visual,
-                     void *frontBuffer, void *backBuffer, size_t size )
-{
-   struct GLFBDevRenderbufferRec *frontrb, *backrb;
-   GLFBDevBufferPtr buf;
-
-   ASSERT(visual);
-   ASSERT(frontBuffer);
-   ASSERT(size > 0);
-
-   /* this is to update the visual if there was a resize and the
-      buffer is created again */
-   visual->var = *varInfo;
-   visual->fix = *fixInfo;
-
-   if (visual->fix.visual != fixInfo->visual ||
-       visual->fix.type != fixInfo->type ||
-       visual->var.bits_per_pixel != varInfo->bits_per_pixel ||
-       visual->var.grayscale != varInfo->grayscale ||
-       visual->var.red.offset != varInfo->red.offset ||
-       visual->var.green.offset != varInfo->green.offset ||
-       visual->var.blue.offset != varInfo->blue.offset ||
-       visual->var.transp.offset != varInfo->transp.offset) {
-      /* visual mismatch! */
-      return NULL;
-   }
-
-   buf = CALLOC_STRUCT(GLFBDevBufferRec);
-   if (!buf)
-      return NULL;
-
-   /* basic framebuffer setup */
-   _mesa_initialize_window_framebuffer(&buf->glframebuffer, &visual->glvisual);
-   /* add front renderbuffer */
-   frontrb = new_glfbdev_renderbuffer(frontBuffer, visual);
-   _mesa_add_renderbuffer(&buf->glframebuffer, BUFFER_FRONT_LEFT,
-                          &frontrb->Base);
-   /* add back renderbuffer */
-   if (visual->glvisual.doubleBufferMode) {
-      const int malloced = !backBuffer;
-      if (malloced) {
-         /* malloc a back buffer */
-         backBuffer = malloc(size);
-         if (!backBuffer) {
-            _mesa_free_framebuffer_data(&buf->glframebuffer);
-            free(buf);
-            return NULL;
-         }
-      }
-
-      backrb = new_glfbdev_renderbuffer(backBuffer, visual);
-      if (!backrb) {
-         /* out of mem */
-         return NULL;
-      }
-      backrb->mallocedBuffer = malloced;
-
-      _mesa_add_renderbuffer(&buf->glframebuffer, BUFFER_BACK_LEFT,
-                             &backrb->Base);
-   }
-   /* add software renderbuffers */
-   _mesa_add_soft_renderbuffers(&buf->glframebuffer,
-                                GL_FALSE, /* color */
-                                visual->glvisual.haveDepthBuffer,
-                                visual->glvisual.haveStencilBuffer,
-                                visual->glvisual.haveAccumBuffer,
-                                GL_FALSE, /* alpha */
-                                GL_FALSE /* aux bufs */);
-
-   buf->fix = *fixInfo;   /* struct assignment */
-   buf->var = *varInfo;   /* struct assignment */
-   buf->visual = visual;  /* ptr assignment */
-   buf->size = size;
-   buf->bytesPerPixel = visual->var.bits_per_pixel / 8;
-
-   return buf;
-}
-
-
-void
-glFBDevDestroyBuffer( GLFBDevBufferPtr buffer )
-{
-   if (buffer) {
-      /* check if destroying the current buffer */
-      GLFBDevBufferPtr curDraw = glFBDevGetCurrentDrawBuffer();
-      GLFBDevBufferPtr curRead = glFBDevGetCurrentReadBuffer();
-      if (buffer == curDraw || buffer == curRead) {
-         glFBDevMakeCurrent( NULL, NULL, NULL);
-      }
-      {
-         struct gl_framebuffer *fb = &buffer->glframebuffer;
-         _mesa_reference_framebuffer(&fb, NULL);
-      }
-   }
-}
-
-
-int
-glFBDevGetBufferAttrib( const GLFBDevBufferPtr buffer, int attrib)
-{
-   (void) buffer;
-   (void) attrib;
-   return -1;
-}
-
-
-GLFBDevBufferPtr
-glFBDevGetCurrentDrawBuffer( void )
-{
-   GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
-   if (fbdevctx)
-      return fbdevctx->drawBuffer;
-   else
-      return NULL;
-}
-
-
-GLFBDevBufferPtr
-glFBDevGetCurrentReadBuffer( void )
-{
-   GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
-   if (fbdevctx)
-      return fbdevctx->readBuffer;
-   else
-      return NULL;
-}
-
-
-void
-glFBDevSwapBuffers( GLFBDevBufferPtr buffer )
-{
-   GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
-   struct GLFBDevRenderbufferRec *frontrb = (struct GLFBDevRenderbufferRec *)
-      buffer->glframebuffer.Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
-   struct GLFBDevRenderbufferRec *backrb = (struct GLFBDevRenderbufferRec *)
-      buffer->glframebuffer.Attachment[BUFFER_BACK_LEFT].Renderbuffer;
-
-   if (!buffer || !buffer->visual->glvisual.doubleBufferMode)
-      return;
-
-   /* check if swapping currently bound buffer */
-   if (fbdevctx->drawBuffer == buffer) {
-      /* flush pending rendering */
-      _mesa_notifySwapBuffers(&fbdevctx->glcontext);
-   }
-
-   ASSERT(frontrb->Base.Data);
-   ASSERT(backrb->Base.Data);
-   memcpy(frontrb->Base.Data, backrb->Base.Data, buffer->size);
-}
-
-
-GLFBDevContextPtr
-glFBDevCreateContext( const GLFBDevVisualPtr visual, GLFBDevContextPtr share )
-{
-   GLFBDevContextPtr ctx;
-   struct gl_context *glctx;
-   struct dd_function_table functions;
-
-   ASSERT(visual);
-
-   ctx = CALLOC_STRUCT(GLFBDevContextRec);
-   if (!ctx)
-      return NULL;
-
-   /* build table of device driver functions */
-   _mesa_init_driver_functions(&functions);
-   functions.GetString = get_string;
-   functions.UpdateState = update_state;
-   functions.GetBufferSize = get_buffer_size;
-   functions.Viewport = viewport;
-
-   if (!_mesa_initialize_context(&ctx->glcontext, API_OPENGL, &visual->glvisual,
-                                 share ? &share->glcontext : NULL,
-                                 &functions, (void *) ctx)) {
-      free(ctx);
-      return NULL;
-   }
-
-   ctx->visual = visual;
-
-   /* Create module contexts */
-   glctx = (struct gl_context *) &ctx->glcontext;
-   _swrast_CreateContext( glctx );
-   _vbo_CreateContext( glctx );
-   _tnl_CreateContext( glctx );
-   _swsetup_CreateContext( glctx );
-   _swsetup_Wakeup( glctx );
-
-   /* use default TCL pipeline */
-   {
-      TNLcontext *tnl = TNL_CONTEXT(glctx);
-      tnl->Driver.RunPipeline = _tnl_run_pipeline;
-   }
-
-   _mesa_enable_sw_extensions(glctx);
-   _mesa_enable_1_3_extensions(glctx);
-   _mesa_enable_1_4_extensions(glctx);
-   _mesa_enable_1_5_extensions(glctx);
-   _mesa_enable_2_0_extensions(glctx);
-   _mesa_enable_2_1_extensions(glctx);
-
-   return ctx;
-}
-
-
-void
-glFBDevDestroyContext( GLFBDevContextPtr context )
-{
-   GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
-
-   if (context) {
-      struct gl_context *mesaCtx = &context->glcontext;
-
-      _swsetup_DestroyContext( mesaCtx );
-      _swrast_DestroyContext( mesaCtx );
-      _tnl_DestroyContext( mesaCtx );
-      _vbo_DestroyContext( mesaCtx );
-
-      if (fbdevctx == context) {
-         /* destroying current context */
-         _mesa_make_current(NULL, NULL, NULL);
-      }
-      _mesa_free_context_data(&context->glcontext);
-      free(context);
-   }
-}
-
-
-int
-glFBDevGetContextAttrib( const GLFBDevContextPtr context, int attrib)
-{
-   (void) context;
-   (void) attrib;
-   return -1;
-}
-
-
-GLFBDevContextPtr
-glFBDevGetCurrentContext( void )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   return (GLFBDevContextPtr) ctx;
-}
-
-
-int
-glFBDevMakeCurrent( GLFBDevContextPtr context,
-                    GLFBDevBufferPtr drawBuffer,
-                    GLFBDevBufferPtr readBuffer )
-{
-   if (context && drawBuffer && readBuffer) {
-      /* Make sure the context's visual and the buffers' visuals match.
-       * XXX we might do this by comparing specific fields like bits_per_pixel,
-       * visual, etc. in the future.
-       */
-      if (context->visual != drawBuffer->visual ||
-          context->visual != readBuffer->visual) {
-         return 0;
-      }
-      _mesa_make_current( &context->glcontext,
-                          &drawBuffer->glframebuffer,
-                          &readBuffer->glframebuffer );
-      context->drawBuffer = drawBuffer;
-      context->readBuffer = readBuffer;
-      context->curBuffer = drawBuffer;
-   }
-   else {
-      /* unbind */
-      _mesa_make_current( NULL, NULL, NULL );
-   }
-
-   return 1;
-}
-
-#endif /* USE_GLFBDEV_DRIVER */



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