Commiting a few minor fixes to glut fbdev (segfault on a separate stack)

Updated all drivers that used the old _ac_ functions to use
the new _vbo_  functions. I know this fixed the fbdev driver,
it looks like it might fix some other drivers too.

2 files changed, 16 insertions, 2200 deletions

diff --git a/src/glut/fbdev/fbdev.c b/src/glut/fbdev/fbdev.c
index 3b63cd70ea1..80237f5bc75 100644
--- a/src/glut/fbdev/fbdev.c
+++ b/src/glut/fbdev/fbdev.c
@@ -173,6 +173,9 @@ void glutInit (int *argcp, char **argv)
    int RequiredWidth = 0, RequiredHeight;
    char *fbdev;
 
+   stack_t stack;
+   struct sigaction sa;
+
    /* parse out args */
    for (i = 1; i < *argcp;) {
       if (!strcmp(argv[i], "-geometry")) {
@@ -239,7 +242,19 @@ void glutInit (int *argcp, char **argv)
    gettimeofday(&StartTime, 0);
    atexit(Cleanup);
 
-   signal(SIGSEGV, CrashHandler);
+   /* set up SIGSEGV to use alternate stack */
+   stack.ss_flags = 0;
+   stack.ss_size = SIGSTKSZ;
+   if(!(stack.ss_sp = malloc(SIGSTKSZ)))
+      sprintf(exiterror, "Failed to allocate alternate stack for SIGSEGV!\n");
+
+   sigaltstack(&stack, NULL);
+
+   sa.sa_handler = CrashHandler;
+   sa.sa_flags = SA_ONSTACK;
+   sigemptyset(&sa.sa_mask);
+   sigaction(SIGSEGV, &sa, NULL);
+
    signal(SIGINT, CrashHandler);
    signal(SIGTERM, CrashHandler);
    signal(SIGABRT, CrashHandler);
diff --git a/src/glut/fbdev/glut_fbdev.c b/src/glut/fbdev/glut_fbdev.c
deleted file mode 100644
index 3ed8fe90e33..00000000000
--- a/src/glut/fbdev/glut_fbdev.c
+++ /dev/null
@@ -1,2199 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version:  6.5
- * Copyright (C) 1995-2006  Brian Paul
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * Library for glut using mesa fbdev driver
- *
- * Written by Sean D'Epagnier (c) 2006
- */
-
-#include <assert.h>
-#include <errno.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <termios.h>
-#include <inttypes.h>
-
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/poll.h>
-#include <sys/types.h>
-#include <sys/kd.h>
-
-#include <linux/fb.h>
-#include <linux/keyboard.h>
-#include <linux/vt.h>
-
-#include <GL/gl.h>
-#include <GL/glfbdev.h>
-#include <GL/glut.h>
-
-#include <math.h>
-
-#include "../../mesa/main/config.h"
-
-#define MULTIHEAD   /* enable multihead hacks,
-		       it allows the program to continue drawing
-		       without reading input when a second fbdev
-		       has keyboard focus it can cause
-		       screen corruption that requires C-l to fix */
-
-#define FBMODES "/etc/fb.modes"
-
-#define HAVE_GPM
-
-#ifdef HAVE_GPM
-#include <gpm.h>
-static int GpmMouse;
-#endif
-
-#define MOUSEDEV "/dev/gpmdata"
-
-static int CurrentVT;
-static int ConsoleFD = - 1;
-
-/* save settings to restore on exit */
-static int OldKDMode = -1;
-static int OldMode;
-struct vt_mode OldVTMode;
-struct termios OldTermios;
-
-static struct fb_fix_screeninfo FixedInfo;
-static struct fb_var_screeninfo VarInfo, OrigVarInfo;
-struct fb_cmap ColorMap;
-
-static int DesiredDepth = 0;
-
-static int FrameBufferFD = -1;
-static caddr_t FrameBuffer = (caddr_t) -1;
-static caddr_t BackBuffer = NULL;
-static int DisplayMode;
-
-static int AccumSize = 16; /* per channel size of accumulation buffer */
-static int DepthSize = DEFAULT_SOFTWARE_DEPTH_BITS;
-static int StencilSize = STENCIL_BITS;
-
-#define MENU_FONT_WIDTH   9
-#define MENU_FONT_HEIGHT 15 
-#define MENU_FONT        GLUT_BITMAP_9_BY_15
-#define SUBMENU_OFFSET   20
-
-static int AttachedMenus[3];
-static int ActiveMenu;
-static int SelectedMenu;
-static int CurrentMenu;
-static int NumMenus = 1;
-
-static struct {
-    int NumItems;
-    int x, y;
-    int width;
-    int selected;
-    struct {
-	int value;
-	int submenu;
-	char *name;
-    } *Items;
-    void (*func)(int);
-} *Menus = NULL;
-
-struct GlutTimer {
-    int time;
-    void (*func)(int);
-    int value;
-    struct GlutTimer *next;
-};
-
-struct GlutTimer *GlutTimers = NULL;
-
-static struct timeval StartTime;
-
-static int KeyboardModifiers;
-static int KeyboardLedState;
-
-static int MouseFD;
-static int NumMouseButtons;
-static int MouseX;
-static int MouseY;
-static double MouseSpeed = 0;
-static int CurrentCursor = GLUT_CURSOR_LEFT_ARROW;
-/* only display the mouse if there is a registered callback for it */
-static int MouseEnabled = 0;
-
-/* per window data */
-static GLFBDevContextPtr Context;
-static GLFBDevBufferPtr Buffer;
-static GLFBDevVisualPtr Visual;
-static void (*DisplayFunc)(void) = NULL;
-static void (*ReshapeFunc)(int width, int height) = NULL;
-static void (*KeyboardFunc)(unsigned char key, int x, int y) = NULL;
-static void (*MouseFunc)(int key, int state, int x, int y) = NULL;
-static void (*MotionFunc)(int x, int y) = NULL;
-static void (*PassiveMotionFunc)(int x, int y) = NULL;
-static void (*VisibilityFunc)(int state) = NULL;
-static void (*SpecialFunc)(int key, int x, int y) = NULL;
-static void (*IdleFunc)(void) = NULL;
-static void (*MenuStatusFunc)(int state, int x, int y) = NULL;
-static void (*MenuStateFunc)(int state) = NULL;
-
-static int Redisplay;
-static int Visible;
-static int VisibleSwitch;
-static int Active;
-/* we have to poll to see if we are visible
-   on a framebuffer that is not active */
-static int VisiblePoll;
-static int FramebufferIndex;
-
-static int RequiredWidth;
-static int RequiredHeight;
-static int InitialWidthHint;
-static int InitialHeightHint;
-
-static char exiterror[256];
-
-/* --------- Initialization ------------*/
-/* test if the active console is attached to the same framebuffer */
-static void TestVisible(void) {
-    struct fb_con2fbmap confb;
-    struct vt_stat st;
-    int ret;
-    ioctl(ConsoleFD, VT_GETSTATE, &st);
-    confb.console = st.v_active;
-
-    ret = ioctl(FrameBufferFD, FBIOGET_CON2FBMAP, &confb);
-
-    if(ret == -1 || confb.framebuffer == FramebufferIndex) {
-	VisibleSwitch = 1;
-	Visible = 0;
-	VisiblePoll = 0;
-    }
-}
-
-static void VTSwitchHandler(int sig)
-{
-    struct vt_stat st;
-    switch(sig) {
-    case SIGUSR1:
-	ioctl(ConsoleFD, VT_RELDISP, 1);
-	Active = 0;
-#ifdef MULTIHEAD
-	VisiblePoll = 1;
-	TestVisible();
-#else
-	VisibleSwitch = 1;
-	Visible = 0;
-#endif
-	break;
-    case SIGUSR2:
-	ioctl(ConsoleFD, VT_GETSTATE, &st);
-	if(st.v_active)
-	    ioctl(ConsoleFD, VT_RELDISP, VT_ACKACQ);
-
-	/* this is a hack to turn the cursor off */
-	ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &VarInfo);
-
-	/* restore color map */
-	if(DisplayMode & GLUT_INDEX) {	
-	    ColorMap.start = 0;
-	    ColorMap.len = 256;
-
-	    if (ioctl(FrameBufferFD, FBIOPUTCMAP, (void *) &ColorMap) < 0)
-		fprintf(stderr, "ioctl(FBIOPUTCMAP) failed!\n");
-	}
-
-	Active = 1;
-	Visible = 1;
-	VisibleSwitch = 1;
-
-	Redisplay = 1;
-
-	break;
-    }
-}
-
-static void Cleanup(void)
-{
-    if(ConsoleFD >= 0)
-	if (tcsetattr(0, TCSANOW, &OldTermios) < 0)
-	    fprintf(stderr, "tcsetattr failed\n");
-
-    if(ConsoleFD > 0) {
-	/* restore keyboard state */
-	if (ioctl(ConsoleFD, VT_SETMODE, &OldVTMode) < 0)
-	    fprintf(stderr, "Failed to set vtmode\n");
-
-	if (ioctl(ConsoleFD, KDSKBMODE, OldKDMode) < 0)
-	    fprintf(stderr, "ioctl KDSKBMODE failed!\n");
-
-	if(ioctl(ConsoleFD, KDSETMODE, OldMode) < 0)
-	    fprintf(stderr, "ioctl KDSETMODE failed!\n");
-
-	close(ConsoleFD);
-    }
-
-    /* close mouse */
-#ifdef HAVE_GPM
-    if(GpmMouse) {
-	if(NumMouseButtons)
-	    Gpm_Close();
-    } else
-#endif
-	if(MouseFD >= 0)
-	    close(MouseFD);
-
-    glFBDevMakeCurrent( NULL, NULL, NULL);
-
-    glFBDevDestroyContext(Context);
-    glFBDevDestroyBuffer(Buffer);
-    glFBDevDestroyVisual(Visual);
-
-    struct vt_mode VT;
-
-    /* restore original variable screen info */
-    if(FrameBufferFD != -1) {
-	if (ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &OrigVarInfo))
-	    fprintf(stderr, "ioctl(FBIOPUT_VSCREENINFO failed): %s\n",
-		    strerror(errno));
-
-	munmap(FrameBuffer, FixedInfo.smem_len);
-	close(FrameBufferFD);
-    }
-
-    /* free allocated back buffer */
-    if(DisplayMode & GLUT_DOUBLE)
-	free(BackBuffer);
-
-    /* free menu items */
-    int i, j;
-
-    for(i = 1; i<NumMenus; i++) {
-	for(i = 1; i<Menus[i].NumItems; i++)
-	    free(Menus[i].Items[j].name);
-	free(Menus[i].Items);
-    }
-    free(Menus);
-
-    if(exiterror[0])
-	fprintf(stderr, "[glfbdev glut] %s", exiterror);
-}
-
-static void CrashHandler(int sig)
-{
-    sprintf(exiterror, "Caught signal %d, cleaning up\n", sig);
-    exit(0);
-}
-
-static void InitializeVT(int usestdin)
-{
-    /* terminos settings for straight-through mode */
-    if (tcgetattr(0, &OldTermios) < 0) {
-	sprintf(exiterror, "tcgetattr failed\n");
-	exit(0);
-    }
-   
-    struct termios tio = OldTermios;
-   
-    tio.c_lflag &= ~(ICANON | ECHO  | ISIG);
-    tio.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON);
-    tio.c_iflag |= IGNBRK;
-    tio.c_cc[VMIN]  = 0;
-    tio.c_cc[VTIME] = 0;
-
-    if (tcsetattr(0, TCSANOW, &tio) < 0) {
-	sprintf(exiterror, "tcsetattr failed\n");
-	exit(0);
-    }
-
-    if(fcntl(0, F_SETFL, O_NONBLOCK) < 0) {
-	sprintf(exiterror, "Failed to set keyboard to non-blocking\n");
-	exit(0);
-    }
-
-    Active = 1;
-
-    if(usestdin) {
-	ConsoleFD = 0;
-	return;
-    }
-
-    /* detect the current vt if it was not specified */
-    if(CurrentVT == 0) {
-	int fd = open("/dev/tty", O_RDWR | O_NDELAY, 0);
-	struct vt_stat st;
-	if(fd == -1) {
-	    sprintf(exiterror, "Failed to open /dev/tty\n");
-	    exit(0);
-	}
-	if(ioctl(fd, VT_GETSTATE, &st) == -1) {
-	    fprintf(stderr, "Could not detect current vt, specify with -vt\n");
-	    fprintf(stderr, "Defaulting to stdin input\n");
-	    ConsoleFD = 0;
-	    close(fd);
-	    return;
-	} else
-	    CurrentVT =  st.v_active;
-
-	close(fd);
-    }
-    
-    /* open the console tty */
-    char console[128];
-    sprintf(console, "/dev/tty%d", CurrentVT);
-    ConsoleFD = open(console, O_RDWR | O_NDELAY, 0);
-    if (ConsoleFD < 0) {
-	sprintf(exiterror, "error couldn't open %s,"
-		" defaulting to stdin \n", console);
-	ConsoleFD = 0;
-	return;
-    }
-
-    signal(SIGUSR1, VTSwitchHandler);
-    signal(SIGUSR2, VTSwitchHandler);
-
-    struct vt_mode vt;
-
-    if (ioctl(ConsoleFD, VT_GETMODE, &OldVTMode) < 0) {
-	sprintf(exiterror,"Failed to grab %s, defaulting to stdin\n", console);
-	close(ConsoleFD);
-	ConsoleFD = 0;
-	return;
-    }
-
-    vt = OldVTMode;
-
-    vt.mode = VT_PROCESS;
-    vt.waitv = 0;
-    vt.relsig = SIGUSR1;
-    vt.acqsig = SIGUSR2;
-    if (ioctl(ConsoleFD, VT_SETMODE, &vt) < 0) {
-	sprintf(exiterror, "error: ioctl(VT_SETMODE) failed: %s\n",
-		strerror(errno));
-	close(ConsoleFD);
-	ConsoleFD = 0;
-	exit(1);
-    }
-
-    if (ioctl(ConsoleFD, KDGKBMODE, &OldKDMode) < 0) {
-	fprintf(stderr, "warning: ioctl KDGKBMODE failed!\n");
-	OldKDMode = K_XLATE;
-    }
-
-    if(ioctl(ConsoleFD, KDGETMODE, &OldMode) < 0)
-	sprintf(exiterror, "Warning: Failed to get terminal mode\n");
-
-#ifdef HAVE_GPM
-    if(!GpmMouse)
-#endif
-	if(ioctl(ConsoleFD, KDSETMODE, KD_GRAPHICS) < 0)
-	    sprintf(exiterror,"Warning: Failed to set terminal to graphics\n");
-
-
-    if (ioctl(ConsoleFD, KDSKBMODE, K_MEDIUMRAW) < 0) {
-	sprintf(exiterror, "ioctl KDSKBMODE failed!\n");
-	tcsetattr(0, TCSANOW, &OldTermios);
-	exit(0);
-    }
-
-    if( ioctl(ConsoleFD, KDGKBLED, &KeyboardLedState) < 0)  {
-	sprintf(exiterror, "ioctl KDGKBLED failed!\n");
-	exit(0);
-    }
-}
-
-static void InitializeMouse(void)
-{
-#ifdef HAVE_GPM
-    if(GpmMouse) {
-	Gpm_Connect conn;  
-	int c;
-	conn.eventMask  = ~0;   /* Want to know about all the events */
-	conn.defaultMask = 0;   /* don't handle anything by default  */
-	conn.minMod     = 0;    /* want everything                   */
-	conn.maxMod     = ~0;   /* all modifiers included            */
-	if(Gpm_Open(&conn, 0) == -1) {
-	    fprintf(stderr, "Cannot open gpmctl. Continuing without Mouse\n");
-	    return;
-	}
-	
-	if(!MouseSpeed)
-	    MouseSpeed = 5;
-    } else
-#endif
-   {
-       const char *mousedev = getenv("MOUSE");
-       if(!mousedev)
-	   mousedev = MOUSEDEV;
-       if((MouseFD = open(mousedev, O_RDONLY)) < 0) {
-	   fprintf(stderr,"Cannot open %s.\n"
-		   "Continuing without Mouse\n", MOUSEDEV);
-	   return;
-       }
-
-       if(!MouseSpeed)
-	   MouseSpeed = 1;
-   }
-
-    NumMouseButtons = 3;
-}
-
-static void removeArgs(int *argcp, char **argv, int num)
-{
-  int i;
-  for (i = 0; argv[i+num]; i++)
-    argv[i] = argv[i+num];
-
-  argv[i] = NULL;
-  *argcp -= num;
-}
-
-#define REQPARAM(PARAM)  \
-    if (i >= *argcp - 1) { \
-	fprintf(stderr, PARAM" requires a parameter\n"); \
-	exit(0); \
-    }
-
-void glutInit (int *argcp, char **argv)
-{
-    int i;
-    int nomouse = 0;
-    int nokeyboard = 0;
-    int usestdin = 0;
-
-    /* parse out args */
-    for (i = 1; i < *argcp;) {
-	if (!strcmp(argv[i], "-geometry")) {
-	    REQPARAM("geometry");
-	    if(sscanf(argv[i+1], "%dx%d", &RequiredWidth,
-		      &RequiredHeight) != 2) {
-		fprintf(stderr,"Please specify geometry as widthxheight\n");
-		exit(0);
-	    }
-	    removeArgs(argcp, &argv[i], 2);
-	} else
-        if (!strcmp(argv[i], "-bpp")) {
-	    REQPARAM("bpp");
-	    if(sscanf(argv[i+1], "%d", &DesiredDepth) != 1) {
-		fprintf(stderr, "Please specify a parameter for bpp\n");
-		exit(0);
-	    }
-
-	    removeArgs(argcp, &argv[i], 2);
-	} else 
-        if (!strcmp(argv[i], "-vt")) {
-	    REQPARAM("vt");
-	    if(sscanf(argv[i+1], "%d", &CurrentVT) != 1) {
-		fprintf(stderr, "Please specify a parameter for vt\n");
-		exit(0);
-	    }
-	    removeArgs(argcp, &argv[i], 2);
-	} else 
-        if (!strcmp(argv[i], "-mousespeed")) {
-	    REQPARAM("mousespeed");
-	    if(sscanf(argv[i+1], "%lf", &MouseSpeed) != 1) {
-		fprintf(stderr, "Please specify a mouse speed, eg: 2.5\n");
-		exit(0);
-	    }
-	    removeArgs(argcp, &argv[i], 2);
-	} else 
-        if (!strcmp(argv[i], "-nomouse")) {
-	    nomouse = 1;
-	    removeArgs(argcp, &argv[i], 1);
-	} else 
-        if (!strcmp(argv[i], "-nokeyboard")) {
-	    nokeyboard = 1;
-	    removeArgs(argcp, &argv[i], 1);
-	} else 
-        if (!strcmp(argv[i], "-stdin")) {
-	    usestdin = 1;
-	    removeArgs(argcp, &argv[i], 1);
-	} else 
-        if (!strcmp(argv[i], "-gpmmouse")) {
-#ifdef HAVE_GPM
-	    GpmMouse = 1;
-#else
-	    fprintf(stderr, "gpm support was not compiled\n");
-	    exit(0);
-#endif
-	    removeArgs(argcp, &argv[i], 1);
-	} else 
-	if (!strcmp(argv[i], "--")) {
-	    removeArgs(argcp, &argv[i], 1);
-	    break;
-	} else 
-	    i++;
-    }
-
-    gettimeofday(&StartTime, 0);
-    atexit(Cleanup);
-
-    signal(SIGSEGV, CrashHandler);
-    signal(SIGINT, CrashHandler);
-    signal(SIGTERM, CrashHandler);
-
-    if(nomouse == 0)
-	InitializeMouse();
-    if(nokeyboard == 0)
-	InitializeVT(usestdin);
-}
-
-void glutInitDisplayMode (unsigned int mode)
-{
-    DisplayMode = mode;
-}
-
-void glutInitWindowPosition (int x, int y)
-{
-}
-
-void glutInitWindowSize (int width, int height)
-{
-    InitialWidthHint = width;
-    InitialHeightHint = height;
-}
-
-/* --------- Mouse Rendering ------------*/
-#include "cursors.h"
-static int LastMouseX;
-static int LastMouseY;
-static unsigned char *MouseBuffer;
-
-static void EraseCursor(void)
-{
-    int off = LastMouseY * FixedInfo.line_length 
-	+ LastMouseX * VarInfo.bits_per_pixel / 8;
-    int stride = CURSOR_WIDTH * VarInfo.bits_per_pixel / 8;
-    int i;
-
-    unsigned char *src = MouseBuffer;
-
-    for(i = 0; i<CURSOR_HEIGHT; i++) {
-	memcpy(BackBuffer + off, src, stride);
-	src += stride;
-	off += FixedInfo.line_length;
-    }
-}
-
-static void SaveCursor(int x, int y)
-{
-    if(x < 0)
-	LastMouseX = 0;
-    else
-    if(x > (int)VarInfo.xres - CURSOR_WIDTH)
-	LastMouseX = VarInfo.xres - CURSOR_WIDTH;
-    else
-	LastMouseX = x;
-
-    if(y < 0)
-	LastMouseY = 0;
-    else
-    if(y > (int)VarInfo.yres - CURSOR_HEIGHT)
-	LastMouseY = VarInfo.yres - CURSOR_HEIGHT;
-    else
-	LastMouseY = y;
-
-    int off = LastMouseY * FixedInfo.line_length 
-	+ LastMouseX * VarInfo.bits_per_pixel / 8;
-    int stride = CURSOR_WIDTH * VarInfo.bits_per_pixel / 8;
-    int i;
-    unsigned char *src = MouseBuffer;
-    for(i = 0; i<CURSOR_HEIGHT; i++) {
-	memcpy(src, BackBuffer + off, stride);
-	src += stride;
-	off += FixedInfo.line_length;
-    }
-}
-
-static void DrawCursor(void)
-{
-    if(CurrentCursor < 0 || CurrentCursor >= NUM_CURSORS)
-	return;
-
-    int px = MouseX - CursorsXOffset[CurrentCursor];
-    int py = MouseY - CursorsYOffset[CurrentCursor];
-
-    SaveCursor(px, py);
-
-    int xoff = 0;
-    if(px < 0)
-	xoff = -px;
-
-    int xlen = CURSOR_WIDTH;
-    if(px + CURSOR_WIDTH > VarInfo.xres)
-	xlen = VarInfo.xres - px;
-
-    int yoff = 0;
-    if(py < 0)
-	yoff = -py;
-
-    int ylen = CURSOR_HEIGHT;
-    if(py + CURSOR_HEIGHT > VarInfo.yres)
-	ylen = VarInfo.yres - py;
-
-    int bypp = VarInfo.bits_per_pixel / 8;
-
-    unsigned char *c = BackBuffer + FixedInfo.line_length * (py + yoff)
-	+ (px + xoff) * bypp;
-
-    unsigned char *d = Cursors[CurrentCursor] + (CURSOR_WIDTH * yoff + xoff)*4;
-    int i, j;
-
-    int dstride = (CURSOR_WIDTH - xlen + xoff) * 4;
-    int cstride = FixedInfo.line_length - bypp * (xlen - xoff);
-
-    switch(bypp) {
-    case 1: /* no support for 8bpp mouse yet */
-	break;
-    case 2:
-	{
-	    uint16_t *e = (void*)c;
-	    cstride /= 2;
-	    for(i = yoff; i < ylen; i++) {
-		for(j = xoff; j < xlen; j++) {
-		    e[0] = ((((d[0] + (((int)(((e[0] >> 8) & 0xf8) 
-			   | ((c[0] >> 11) & 0x7)) * d[3]) >> 8)) & 0xf8) << 8)
-			 | (((d[1] + (((int)(((e[0] >> 3) & 0xfc)
-			   | ((e[0] >> 5) & 0x3)) * d[3]) >> 8)) & 0xfc) << 3)
-			 | ((d[2] + (((int)(((e[0] << 3) & 0xf8)
-			   | (e[0] & 0x7)) * d[3]) >> 8)) >> 3));
-		
-		    e++;
-		    d+=4;
-		}
-		d += dstride;
-		e += cstride;
-	    }
-	}
-	break;
-    case 3:
-    case 4:
-	for(i = yoff; i < ylen; i++) {
-	    for(j = xoff; j < xlen; j++) {
-		c[0] = d[0] + (((int)c[0] * d[3]) >> 8);
-		c[1] = d[1] + (((int)c[1] * d[3]) >> 8);
-		c[2] = d[2] + (((int)c[2] * d[3]) >> 8);
-		
-		c+=bypp;
-		d+=4;
-	    }
-	    d += dstride;
-	    c += cstride;
-	} break;
-    }
-}
-
-#define MIN(x, y) x < y ? x : y
-static void SwapCursor(void)
-{
-    int px = MouseX - CursorsXOffset[CurrentCursor];
-    int py = MouseY - CursorsYOffset[CurrentCursor];
-
-    int minx = MIN(px, LastMouseX);
-    int sizex = abs(px - LastMouseX);
-
-    int miny = MIN(py, LastMouseY);
-    int sizey = abs(py - LastMouseY);
-
-    DrawCursor();
-    /* now update the portion of the screen that has changed */
-
-    if(DisplayMode & GLUT_DOUBLE && (sizex || sizey)) {
-	if(minx < 0)
-	    minx = 0;
-	if(miny < 0)
-	    miny = 0;
-	
-	if(minx + sizex > VarInfo.xres)
-	    sizex = VarInfo.xres - minx;
-	if(miny + sizey > VarInfo.yres)
-	    sizey = VarInfo.yres - miny;
-	int off = FixedInfo.line_length * miny
-	    + minx * VarInfo.bits_per_pixel / 8;
-	int stride = (sizex + CURSOR_WIDTH) * VarInfo.bits_per_pixel / 8;
-	int i;
-	for(i = 0; i< sizey + CURSOR_HEIGHT; i++) {
-	    memcpy(FrameBuffer+off, BackBuffer+off, stride);
-	    off += FixedInfo.line_length;
-	}
-    }
-}
-
-/* --------- Menu Rendering ------------*/
-static double MenuProjection[16];
-static double MenuModelview[16];
-
-static void InitMenuMatrices(void)
-{
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    gluOrtho2D(0.0,VarInfo.xres,VarInfo.yres,0.0);
-    glMatrixMode(GL_MODELVIEW);
-    glLoadIdentity();
-    glViewport(0,0,VarInfo.xres,VarInfo.yres);
-    glGetDoublev(GL_PROJECTION_MATRIX, MenuProjection);
-    glGetDoublev(GL_MODELVIEW_MATRIX, MenuModelview);
-}
-
-static int DrawMenu(int menu, int x, int *y)
-{
-    int i;
-    int ret = 1;
-    for(i=0; i < Menus[menu].NumItems; i++) {
-	char *s = Menus[menu].Items[i].name;
-	int a =0;
-	if(MouseY >= *y && MouseY < *y + MENU_FONT_HEIGHT &&
-	   MouseX >= x && MouseX < x + Menus[menu].width) {
-	    a = 1;
-	    SelectedMenu = menu;
-	    ret = 0;
-	    Menus[menu].selected = i;
-	    glColor3f(1,0,0);
-	} else
-	    glColor3f(0,0,1);
-
-	*y += MENU_FONT_HEIGHT;
-	glRasterPos2i(x, *y);
-	for(; *s; s++)
-	    glutBitmapCharacter(MENU_FONT, *s);
-
-	if(Menus[menu].selected == i)
-	    if(Menus[menu].Items[i].submenu) 
-		if(DrawMenu(Menus[menu].Items[i].submenu, x 
-			    + SUBMENU_OFFSET, y)) {
-		    if(!a)
-			Menus[menu].selected = -1;
-		} else
-		    ret = 0;
-    }
-    return ret;
-}
-
-static void DrawMenus(void)
-{
-    /* save old settings */
-    glPushAttrib(-1);
-
-    glMatrixMode(GL_MODELVIEW);
-    glPushMatrix();
-    glLoadMatrixd(MenuModelview);
-    glMatrixMode(GL_PROJECTION);
-    glPushMatrix();
-    glLoadMatrixd(MenuProjection);
-
-    glDisable(GL_DEPTH_TEST);
-    glDisable(GL_ALPHA_TEST);
-    glDisable(GL_LIGHTING);
-    glDisable(GL_FOG);
-    glDisable(GL_TEXTURE_2D);
-    // glEnable(GL_LOGIC_OP);
-    //glEnable(GL_COLOR_LOGIC_OP);
-    //    glLogicOp(GL_XOR);
-    
-    int x = Menus[ActiveMenu].x;
-    int y = Menus[ActiveMenu].y;
-
-    if(DrawMenu(ActiveMenu, x, &y))
-	Menus[ActiveMenu].selected = -1;
-    
-    /* restore settings */
-
-    glPopMatrix();
-    glMatrixMode(GL_MODELVIEW);
-    glPopMatrix();
-
-    glPopAttrib();
-}
-
-/* --------- Event Processing ------------*/
-#define MODIFIER(mod) \
-    KeyboardModifiers = release ? KeyboardModifiers & ~mod   \
-                                : KeyboardModifiers | mod;
-
-#define READKEY read(ConsoleFD, &code, 1)
-
-static void LedModifier(int led, int release)
-{
-    static int releaseflag = K_CAPS | K_NUM;    
-    if(release)
-	releaseflag |= led;
-	else
-	    if(releaseflag & led) {
-		KeyboardLedState ^= led;
-		releaseflag &= ~led;
-	    }
-    ioctl(ConsoleFD, KDSKBLED, KeyboardLedState);
-    ioctl(ConsoleFD, KDSETLED, 0x80);
-}
-
-static int ReadKey(void)
-{
-    int x;
-    unsigned char code;
-    int specialkey = 0;
-    if(READKEY == 0)
-	return 0;
-
-    if(code == 0)
-	return 0;
-
-    /* stdin input escape code based */
-    if(ConsoleFD == 0) {
-	KeyboardModifiers = 0;
-    altset:
-	if(code == 27 && READKEY == 1) {
-	    switch(code) {
-	    case 79: /* function key */
-		READKEY;
-		if(code == 50) {
-		    READKEY;
-		shiftfunc:
-		    KeyboardModifiers |= GLUT_ACTIVE_SHIFT;
-		    specialkey = GLUT_KEY_F1 + code - 53;
-		    READKEY;
-		} else {
-		    READKEY;
-		    specialkey = GLUT_KEY_F1 + code - 80;		    
-		}
-		break;
-	    case 91:
-		READKEY;
-		switch(code) {
-		case 68:
-		    specialkey = GLUT_KEY_LEFT; break;
-		case 65:
-		    specialkey = GLUT_KEY_UP; break;
-		case 67:
-		    specialkey = GLUT_KEY_RIGHT; break;
-		case 66:
-		    specialkey = GLUT_KEY_DOWN; break;
-		case 53:
-		    specialkey = GLUT_KEY_PAGE_UP; READKEY; break;
-		case 54:
-		    specialkey = GLUT_KEY_PAGE_DOWN; READKEY; break;
-		case 49:
-		    specialkey = GLUT_KEY_HOME; READKEY; break;
-		case 52:
-		    specialkey = GLUT_KEY_END; READKEY; break;
-		case 50:
-		    READKEY;
-		    if(code != 126)
-			goto shiftfunc;
-		    specialkey = GLUT_KEY_INSERT;
-		    break; 
-		case 51:
-		    code = '\b'; goto stdkey;
-		case 91:
-		    READKEY;
-		    specialkey = GLUT_KEY_F1 + code - 65;
-		    break;
-		default:
-		    return 0;
-		}
-		break;
-	    default:
-		KeyboardModifiers |= GLUT_ACTIVE_ALT;
-		goto altset;
-	    }
-	}
-    stdkey:
-	if(specialkey) {
-	    if(SpecialFunc)
-		SpecialFunc(specialkey, MouseX, MouseY);
-	} else {
-	    if(code >= 1 && code <= 26) {
-		KeyboardModifiers |= GLUT_ACTIVE_CTRL;
-		code += 'a' - 1;
-	    }
-	    if((code >= 43 && code <= 34) || (code == 60)
-	       || (code >= 62 && code <= 90) || (code == 94)
-	       || (code == 95)  || (code >= 123 && code <= 126))
-		KeyboardModifiers |= GLUT_ACTIVE_SHIFT;
-
-	    if(KeyboardFunc)
-		KeyboardFunc(code, MouseX, MouseY);
-	}
-	return 1;
-    }
-
-    /* linux kbd reading */
-    struct kbentry entry; 
-    entry.kb_table = 0;
-    if(KeyboardModifiers & GLUT_ACTIVE_SHIFT)
-	entry.kb_table |= K_SHIFTTAB;
-	    
-    int release = code & 0x80;
-    code &= 0x7F;
-	    
-    entry.kb_index = code;
-	
-    if (ioctl(ConsoleFD, KDGKBENT, &entry) < 0) {
-	sprintf(exiterror, "ioctl(KDGKBENT) failed.\n");
-	exit(0);
-    }
-
-    int labelval = entry.kb_value;
-
-    switch(labelval) {
-    case K_SHIFT:
-    case K_SHIFTL:
-	MODIFIER(GLUT_ACTIVE_SHIFT);
-	return 0;
-    case K_CTRL:
-	MODIFIER(GLUT_ACTIVE_CTRL);
-	return 0;
-    case K_ALT:
-    case K_ALTGR:
-	MODIFIER(GLUT_ACTIVE_ALT);
-	return 0;
-    }
-
-    if(!release && labelval >= K_F1 && labelval <= K_F12)
-	if(KeyboardModifiers & GLUT_ACTIVE_ALT) {
-	    /* VT switch, we must do it */
-	    if(ioctl(ConsoleFD, VT_ACTIVATE, labelval - K_F1 + 1) < 0)
-		sprintf(exiterror, "Error switching console\n");
-	    return 0;
-	}
-
-    switch(labelval) {
-    case K_CAPS:
-	LedModifier(LED_CAP, release);
-	return 0;
-    case K_NUM:
-	LedModifier(LED_NUM, release);
-	return 0;
-    case K_HOLD: /* scroll lock suspends glut */
-	LedModifier(LED_SCR, release);
-	while(KeyboardLedState & LED_SCR) {
-	    usleep(10000);
-	    ReadKey();
-	}
-	return 0;
-    }
-
-    /* we could queue keypresses here */
-    if(KeyboardLedState & LED_SCR)
-	return 0;
-
-    if(release)
-	return 0;
-
-    if(labelval >= K_F1 && labelval <= K_F12)
-	specialkey = GLUT_KEY_F1 + labelval - K_F1;
-    else
-	switch(labelval) {
-	case K_LEFT:
-	    specialkey = GLUT_KEY_LEFT; break;
-	case K_UP:
-	    specialkey = GLUT_KEY_UP; break;
-	case K_RIGHT:
-	    specialkey = GLUT_KEY_RIGHT; break;
-	case K_DOWN:
-	    specialkey = GLUT_KEY_DOWN; break;
-	case K_PGUP:
-	    specialkey = GLUT_KEY_PAGE_UP; break;
-	case K_PGDN:
-	    specialkey = GLUT_KEY_PAGE_DOWN; break;
-	case K_FIND:
-	    specialkey = GLUT_KEY_HOME; break;
-	case K_SELECT:
-	    specialkey = GLUT_KEY_END; break;
-	case K_INSERT:
-	    specialkey = GLUT_KEY_INSERT; break; 
-	case K_REMOVE:
-	    labelval = '\b'; break;
-	case K_ENTER:
-	    labelval = '\n'; break;
-	}
-
-    if(specialkey) {
-	if(SpecialFunc)
-	    SpecialFunc(specialkey, MouseX, MouseY);
-    } else
-	if(KeyboardFunc) {
-	    char c = labelval;
-	    if(KeyboardLedState & LED_CAP) {
-		if(c >= 'A' && c <= 'Z')
-		    c += 'a' - 'A';
-		else
-		if(c >= 'a' && c <= 'z')
-		    c += 'A' - 'a';
-	    }
-	    KeyboardFunc(c, MouseX, MouseY);
-	}
-    return 1;
-}
-
-static void HandleMousePress(int button, int pressed)
-{
-    if(ActiveMenu && !pressed) {
-	if(MenuStatusFunc)
-	    MenuStatusFunc(GLUT_MENU_NOT_IN_USE, MouseX, MouseY);
-	if(MenuStateFunc)
-	    MenuStateFunc(GLUT_MENU_NOT_IN_USE);
-	if(SelectedMenu > 0) {
-	    int selected = Menus[SelectedMenu].selected;
-	    if(selected >= 0)
-		if(Menus[SelectedMenu].Items[selected].submenu == 0)
-		    Menus[SelectedMenu].func(Menus[SelectedMenu].Items
-					     [selected].value);
-	}
-	ActiveMenu = 0;
-	Redisplay = 1;
-	return;
-    }
-
-    if(AttachedMenus[button] && pressed) {
-	ActiveMenu = AttachedMenus[button];
-	if(MenuStatusFunc)
-	    MenuStatusFunc(GLUT_MENU_IN_USE, MouseX, MouseY);
-	if(MenuStateFunc)
-	    MenuStateFunc(GLUT_MENU_IN_USE);
-	Menus[ActiveMenu].x = MouseX - Menus[ActiveMenu].width/2;
-	Menus[ActiveMenu].y = MouseY - Menus[ActiveMenu].NumItems*MENU_FONT_HEIGHT/2;
-	Menus[ActiveMenu].selected = -1;
-	Redisplay = 1;
-	return;
-    }
-    
-    if(MouseFunc)
-	MouseFunc(button, pressed ? GLUT_DOWN : GLUT_UP, MouseX, MouseY);
-}
-
-static int ReadMouse(void)
-{
-    int l, r, m;
-    static int ll, lm, lr;
-    signed char dx, dy;
-
-#ifdef HAVE_GPM
-    if(GpmMouse) {
-	Gpm_Event event;
-	struct pollfd pfd;
-	pfd.fd = gpm_fd;
-	pfd.events = POLLIN;
-	if(poll(&pfd, 1, 1) != 1)
-	    return 0;
-	
-	if(Gpm_GetEvent(&event) != 1)
-	    return 0;
-	
-	l = event.buttons & GPM_B_LEFT;
-	m = event.buttons & GPM_B_MIDDLE;
-	r = event.buttons & GPM_B_RIGHT;
-
-	/* gpm is weird in that it gives a button number when the button
-	   is released, with type set to GPM_UP, this is only a problem
-	   if it is the last button released */
-    
-	if(event.type & GPM_UP)
-	    if(event.buttons == GPM_B_LEFT || event.buttons == GPM_B_MIDDLE ||
-	       event.buttons == GPM_B_RIGHT || event.buttons == GPM_B_FOURTH)
-		l = m = r = 0;
-
-	dx = event.dx;
-	dy = event.dy;
-    } else
-#endif
-    {
-	if(MouseFD == -1)
-	    return 0;
-
-	if(fcntl(MouseFD, F_SETFL, O_NONBLOCK) == -1) {
-	    close(MouseFD);
-	    MouseFD = -1;
-	    return 0;
-	}
-
-	char data[4];
-	if(read(MouseFD, data, 4) != 4)
-	    return 0;
-	
-	l = ((data[0] & 0x20) >> 3);
-	m = ((data[3] & 0x10) >> 3);
-	r = ((data[0] & 0x10) >> 4);
-
-	dx = (((data[0] & 0x03) << 6) | (data[1] & 0x3F));
-	dy = (((data[0] & 0x0C) << 4) | (data[2] & 0x3F));
-    }
-
-    MouseX += dx * MouseSpeed;
-    if(MouseX < 0)
-	MouseX = 0;
-    else
-	if(MouseX >= VarInfo.xres)
-	    MouseX = VarInfo.xres - 1;
-
-    MouseY += dy * MouseSpeed;
-    if(MouseY < 0)
-	MouseY = 0;
-    else
-	if(MouseY >= VarInfo.yres)
-	    MouseY = VarInfo.yres - 1;
-
-    if(l != ll)
-	HandleMousePress(GLUT_LEFT_BUTTON, l);
-    if(m != lm)
-	HandleMousePress(GLUT_MIDDLE_BUTTON, m);
-    if(r != lr)
-	HandleMousePress(GLUT_RIGHT_BUTTON, r);
-
-    ll = l, lm = m, lr = r;
-
-    if(dx || dy) {
-	if(l || m || r) {
-	    if(MotionFunc)
-		MotionFunc(MouseX, MouseY);
-	} else
-	    if(PassiveMotionFunc)
-		PassiveMotionFunc(MouseX, MouseY);
-
-	EraseCursor();
-	if(ActiveMenu)
-	    Redisplay = 1;
-	else
-	    SwapCursor();
-    }
-
-    return 1;
-}
-
-static void RecieveEvents(void)
-{
-    while(ReadKey());
-    
-    if(MouseEnabled)
-	while(ReadMouse());
-}
-
-static void ProcessTimers(void)
-{
-    if(GlutTimers && GlutTimers->time < glutGet(GLUT_ELAPSED_TIME)) {
-	struct GlutTimer *timer = GlutTimers;
-	timer->func(timer->value);
-	GlutTimers = timer->next;
-	free(timer);
-    }
-}
-
-void glutMainLoop(void)
-{
-    if(ReshapeFunc)
-	ReshapeFunc(VarInfo.xres, VarInfo.yres);
-
-    if(!DisplayFunc) {
-	sprintf(exiterror, "Fatal Error: No Display Function registered\n");
-	exit(0);
-    }   
-
-    for(;;) {
-	ProcessTimers();
-
-	if(Active)
-	    RecieveEvents();
-	else
-	    if(VisiblePoll)
-		TestVisible();
-
-	if(IdleFunc)
-	    IdleFunc();
-
-	if(VisibleSwitch) {
-	    VisibleSwitch = 0;
-	    if(VisibilityFunc)
-		VisibilityFunc(Visible ? GLUT_VISIBLE : GLUT_NOT_VISIBLE);
-	}
-
-	if(Visible && Redisplay) {
-	    Redisplay = 0;
-	    if(MouseEnabled)
-		EraseCursor();
-	    DisplayFunc();
-	    if(!(DisplayMode & GLUT_DOUBLE)) {
-		if(ActiveMenu)
-		    DrawMenus();
-		if(MouseEnabled)
-		    DrawCursor();
-	    }
-	}
-    }
-}
-
-/* ---------- Window Management ----------*/
-static void ParseFBModes(void)
-{
-    char buf[1024];
-    struct fb_var_screeninfo vi = VarInfo;
-
-    FILE *fbmodes = fopen(FBMODES, "r");
-
-    if(!fbmodes) {
-	sprintf(exiterror, "Warning: could not open "
-		FBMODES" using current mode\n");
-	return;
-    }
-
-    if(InitialWidthHint == 0 && InitialHeightHint == 0
-       && RequiredWidth == 0)
-	return; /* use current mode */
-
-    while(fgets(buf, sizeof buf, fbmodes)) {
-	char *c;
-	int v;
-
-	if(!(c = strstr(buf, "geometry")))
-	    continue;
-	v = sscanf(c, "geometry %d %d %d %d %d", &vi.xres, &vi.yres,
-		   &vi.xres_virtual, &vi.yres_virtual, &vi.bits_per_pixel);
-	if(v != 5)
-	    continue;
-
-	/* now we have to decide what is best */
- 	if(RequiredWidth) {
-	    if(RequiredWidth != vi.xres || RequiredHeight != vi.yres)
-		continue;
-	} else {
-	    if(VarInfo.xres < vi.xres && VarInfo.xres < InitialWidthHint)
-		v++;
-	    if(VarInfo.xres > vi.xres && vi.xres > InitialWidthHint)
-		v++;
-
-	    if(VarInfo.yres < vi.yres && VarInfo.yres < InitialHeightHint)
-		v++;
-	    if(VarInfo.yres > vi.yres && vi.yres > InitialHeightHint)
-		v++;
-
-	    if(v < 7)
-		continue;
-	}
-
-	fgets(buf, sizeof buf, fbmodes);
-	if(!(c = strstr(buf, "timings")))
-	    continue;
-
-	v = sscanf(c, "timings %d %d %d %d %d %d %d", &vi.pixclock,
-		   &vi.left_margin, &vi.right_margin, &vi.upper_margin,
-		   &vi.lower_margin, &vi.hsync_len, &vi.vsync_len);
-	if(v != 7)
-	    continue;
-
-	VarInfo = vi; /* finally found a better mode */
-	if(RequiredWidth) {
-	    fclose(fbmodes);
-	    return;
-	}
-    }
-
-    fclose(fbmodes);
-
-    if(RequiredWidth) {
-	sprintf(exiterror, "No mode (%dx%d) found in "FBMODES"\n",
-		RequiredWidth, RequiredHeight);
-	exit(0);
-    }
-}
-
-int glutCreateWindow (const char *title)
-{
-    if(ConsoleFD == -1) {
-	int argc = 0;
-	char *argv[] = {NULL};
-	glutInit(&argc, argv);
-    }
-
-    if(Context)
-	return 0;
-
-    char *fbdev = getenv("FRAMEBUFFER");
-    if(fbdev) {
-#ifdef MULTIHEAD
-	if(!sscanf(fbdev, "/dev/fb%d", &FramebufferIndex))
-	    if(!sscanf(fbdev, "/dev/fb/%d", &FramebufferIndex))
-		sprintf(exiterror, "Could not determine Framebuffer index!\n");
-#endif
-    } else {
-	static char fb[128];
-	FramebufferIndex = 0;
-	struct fb_con2fbmap confb;
-	int fd = open("/dev/fb0", O_RDWR);
-	confb.console = CurrentVT;
-	if(ioctl(fd, FBIOGET_CON2FBMAP, &confb) != -1)
-	    FramebufferIndex = confb.framebuffer;
-	sprintf(fb, "/dev/fb%d", FramebufferIndex);
-	fbdev = fb;
-	close(fd);
-    }
-
-    /* open the framebuffer device */
-    FrameBufferFD = open(fbdev, O_RDWR);
-    if (FrameBufferFD < 0) {
-	sprintf(exiterror, "Error opening %s: %s\n", fbdev, strerror(errno));
-	exit(0);
-    }
-
-    /* Get the fixed screen info */
-    if (ioctl(FrameBufferFD, FBIOGET_FSCREENINFO, &FixedInfo)) {
-	sprintf(exiterror, "error: ioctl(FBIOGET_FSCREENINFO) failed: %s\n",
-		strerror(errno));
-	exit(0);
-    }
-
-    /* get the variable screen info */
-    if (ioctl(FrameBufferFD, FBIOGET_VSCREENINFO, &OrigVarInfo)) {
-	sprintf(exiterror, "error: ioctl(FBIOGET_VSCREENINFO) failed: %s\n",
-		strerror(errno));
-	exit(0);
-    }
-
-    /* operate on a copy */
-    VarInfo = OrigVarInfo;
-
-    /* set the depth, resolution, etc */
-    ParseFBModes();
-
-    if(DisplayMode & GLUT_INDEX)
-	VarInfo.bits_per_pixel = 8;
-    else
-	if(VarInfo.bits_per_pixel == 8)
-	    VarInfo.bits_per_pixel = 32;
-    
-    if (DesiredDepth)
-	VarInfo.bits_per_pixel = DesiredDepth;
-
-    VarInfo.xoffset = 0;
-    VarInfo.yoffset = 0;
-    VarInfo.nonstd = 0;
-    VarInfo.vmode &= ~FB_VMODE_YWRAP; /* turn off scrolling */
-
-    /* set new variable screen info */
-    if (ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &VarInfo)) {
-	sprintf(exiterror, "ioctl(FBIOPUT_VSCREENINFO failed): %s\n",
-		strerror(errno));
-	exit(0);
-    }
-
-    /* reload the screen info to update offsets */
-    if (ioctl(FrameBufferFD, FBIOGET_VSCREENINFO, &VarInfo)) {
-	sprintf(exiterror, "error: ioctl(FBIOGET_VSCREENINFO) failed: %s\n",
-		strerror(errno));
-	exit(0);
-    }
-
-    /* reload the fixed info to update color mode */
-    if (ioctl(FrameBufferFD, FBIOGET_FSCREENINFO, &FixedInfo)) {
-	sprintf(exiterror, "error: ioctl(FBIOGET_FSCREENINFO) failed: %s\n",
-		strerror(errno));
-	exit(0);
-    }
-
-    if(DisplayMode & GLUT_INDEX) {
-	/* initialize colormap */
-	if (FixedInfo.visual != FB_VISUAL_DIRECTCOLOR) {
-	    static unsigned short red[256], green[256], blue[256];
-	    /* we're assuming 256 entries here */
-
-	    ColorMap.start = 0;
-	    ColorMap.len = 256;
-	    ColorMap.red   = red;
-	    ColorMap.green = green;
-	    ColorMap.blue  = blue;
-	    ColorMap.transp = NULL;
-
-	    if (ioctl(FrameBufferFD, FBIOGETCMAP, (void *) &ColorMap) < 0)
-		sprintf(exiterror, "ioctl(FBIOGETCMAP) failed!\n");
-
-	} else {
-	    sprintf(exiterror, "error: Could not set 8 bit color mode\n");
-	    exit(0);
-	}
-    }
-
-    /* mmap the framebuffer into our address space */
-    FrameBuffer = mmap(0, FixedInfo.smem_len, PROT_READ | PROT_WRITE, 
-		       MAP_SHARED, FrameBufferFD, 0);
-    if (FrameBuffer == MAP_FAILED) {
-	sprintf(exiterror, "error: unable to mmap framebuffer: %s\n",
-		strerror(errno));
-	exit(0);
-    }
-
-    int attribs[9];
-    int i;
-
-    int mask = DisplayMode;
-    for(i=0; i<8 && mask; i++) {
-	if(mask & GLUT_DOUBLE) {
-	    attribs[i] = GLFBDEV_DOUBLE_BUFFER;
-	    mask &= ~GLUT_DOUBLE;
-	    continue;
-	}
-
-	if(mask & GLUT_INDEX) {
-	    attribs[i] = GLFBDEV_COLOR_INDEX;
-	    mask &= ~GLUT_INDEX;
-	    continue;
-	}
-
-	if(mask & GLUT_DEPTH) {
-	    attribs[i] = GLFBDEV_DEPTH_SIZE;
-	    attribs[++i] = DepthSize;
-	    mask &= ~GLUT_DEPTH;
-	    continue;
-	}
-
-	if(mask & GLUT_STENCIL) {
-	    attribs[i] = GLFBDEV_STENCIL_SIZE;
-	    attribs[++i] = StencilSize;
-	    mask &= ~GLUT_STENCIL;
-	    continue;
-	}
-
-	if(mask & GLUT_ACCUM) {
-	    attribs[i] = GLFBDEV_ACCUM_SIZE;
-	    attribs[++i] = AccumSize;
-	    mask &= ~GLUT_ACCUM;
-	    continue;
-	}
-
-	if(mask & GLUT_ALPHA)
-	    if(!(DisplayMode & GLUT_INDEX)) {
-		mask &= ~GLUT_ALPHA;
-		i--;
-		continue;
-	    }
-       
-	sprintf(exiterror, "Invalid mode from glutInitDisplayMode\n");
-	exit(0);
-    }       
-
-    attribs[i] = GLFBDEV_NONE;
-   
-    if(!(Visual = glFBDevCreateVisual( &FixedInfo, &VarInfo, attribs ))) {
-	sprintf(exiterror, "Failure to create Visual\n");
-	exit(0);
-    }
-
-    int size = VarInfo.xres_virtual * VarInfo.yres_virtual
-	       * VarInfo.bits_per_pixel / 8;
-    if(DisplayMode & GLUT_DOUBLE) {
-	if(!(BackBuffer = malloc(size))) {
-	   sprintf(exiterror, "Failed to allocate double buffer\n");
-	   exit(0);
-	}
-    } else
-	BackBuffer = FrameBuffer;
-
-    if(!(Buffer = glFBDevCreateBuffer( &FixedInfo, &VarInfo, Visual,
-				       FrameBuffer, BackBuffer, size))) {
-	sprintf(exiterror, "Failure to create Buffer\n");
-	exit(0);
-    }
-
-    if(!(Context = glFBDevCreateContext(Visual, NULL))) {
-	sprintf(exiterror, "Failure to create Context\n");
-	exit(0);
-    }
-
-    if(!glFBDevMakeCurrent( Context, Buffer, Buffer )) {
-	sprintf(exiterror, "Failure to Make Current\n");
-	exit(0);
-    }
-
-    Visible = 1;
-    VisibleSwitch = 1;
-    Redisplay = 1;
-
-    /* set up mouse */
-    if((MouseBuffer = malloc(CURSOR_WIDTH * CURSOR_HEIGHT
-			     * VarInfo.bits_per_pixel / 8)) == NULL) {
-	sprintf(exiterror, "malloc failure\n");
-	exit(0);
-    }
-
-    MouseX = VarInfo.xres / 2;
-    MouseY = VarInfo.yres / 2;
-
-    /* set up menus */
-    InitMenuMatrices();
-    return 1;
-}
-
-int glutCreateSubWindow(int win, int x, int y, int width, int height)
-{
-    return 0;
-}
-
-void glutSetWindow(int win)
-{
-}
-
-int glutGetWindow(void)
-{
-    return 1;
-}
-
-void glutDestroyWindow(int win)
-{
-}
-
-void glutPostRedisplay(void)
-{
-    Redisplay = 1;
-}
-
-void glutSwapBuffers(void)
-{
-    glFlush();
-
-    if(DisplayMode & GLUT_DOUBLE) {
-	if(ActiveMenu)
-	    DrawMenus();
-	if(MouseEnabled)
-	    DrawCursor();
-	glFBDevSwapBuffers(Buffer);
-    }
-}
-
-void glutPositionWindow(int x, int y) 
-{
-}
-
-void glutReshapeWindow(int width, int height)
-{
-}
-
-void glutFullScreen(void)
-{
-}
-
-void glutPopWindow(void)
-{
-}
-
-void glutPushWindow(void)
-{
-}
-
-void glutShowWindow(void)
-{
-}
-
-void glutHideWindow(void)
-{
-}
-
-void glutIconifyWindow(void)
-{
-}
-
-void glutSetWindowTitle(const char *name)
-{
-}
-
-void glutSetIconTitle(const char *name)
-{
-}
-
-void glutSetCursor(int cursor)
-{
-    if(cursor == GLUT_CURSOR_FULL_CROSSHAIR)
-	cursor = GLUT_CURSOR_CROSSHAIR;
-    CurrentCursor = cursor;
-    MouseEnabled = 1;
-    EraseCursor();
-    SwapCursor();
-}
-
-/* --------- Overlays ------------*/
-void glutEstablishOverlay(void)
-{
-    exit(0);
-}
-
-void glutUseLayer(GLenum layer)
-{
-}
-
-void glutRemoveOverlay(void)
-{
-}
-
-void glutPostOverlayRedisplay(void)
-{
-}
-
-void glutShowOverlay(void)
-{
-}
-
-void glutHideOverlay(void)
-{
-}
-
-/* --------- Menus ------------*/
-int glutCreateMenu(void (*func)(int value))
-{
-    MouseEnabled = 1;
-    CurrentMenu = NumMenus;
-    NumMenus++;
-    Menus = realloc(Menus, sizeof(*Menus) * NumMenus);
-    Menus[CurrentMenu].NumItems = 0;
-    Menus[CurrentMenu].Items = NULL;
-    Menus[CurrentMenu].func = func;
-    Menus[CurrentMenu].width = 0;
-    return CurrentMenu;
-}
-
-void glutSetMenu(int menu)
-{
-    CurrentMenu = menu;
-}
-
-int glutGetMenu(void)
-{
-    return CurrentMenu;
-}
-
-void glutDestroyMenu(int menu)
-{
-    if(menu == CurrentMenu)
-	CurrentMenu = 0;
-}
-
-static void NameMenuEntry(int entry, const char *name)
-{
-    int cm = CurrentMenu;
-    if(!(Menus[cm].Items[entry-1].name = realloc(Menus[cm].Items[entry-1].name,
-						 strlen(name) + 1))) {
-	sprintf(exiterror, "realloc failed in NameMenuEntry\n");
-	exit(0);
-    }
-    strcpy(Menus[cm].Items[entry-1].name, name);
-    if(strlen(name) * MENU_FONT_WIDTH > Menus[cm].width)
-	Menus[cm].width = strlen(name) * MENU_FONT_WIDTH;
-}
-
-static int AddMenuItem(const char *name)
-{
-    int cm = CurrentMenu;
-    int item = Menus[cm].NumItems++;
-    if(!(Menus[cm].Items = realloc(Menus[cm].Items,
-				   Menus[cm].NumItems * sizeof(*Menus[0].Items)))) {
-	sprintf(exiterror, "realloc failed in AddMenuItem\n");
-	exit(0);
-    }
-    Menus[cm].Items[item].name = NULL;
-    NameMenuEntry(item+1, name);
-    return item;
-}
-
-void glutAddMenuEntry(const char *name, int value)
-{
-    int item = AddMenuItem(name);
-    Menus[CurrentMenu].Items[item].value = value;
-    Menus[CurrentMenu].Items[item].submenu = 0;
-}
-
-void glutAddSubMenu(const char *name, int menu)
-{
-    int item = AddMenuItem(name);
-    if(menu == CurrentMenu) {
-	sprintf(exiterror, "Recursive menus not supported\n");
-	exit(0);
-    }
-    Menus[CurrentMenu].Items[item].submenu = menu;
-}
-
-void glutChangeToMenuEntry(int entry, const char *name, int value)
-{
-    NameMenuEntry(entry, name);
-    Menus[CurrentMenu].Items[entry-1].value = value;
-    Menus[CurrentMenu].Items[entry-1].submenu = 0;
-}
-
-void glutChangeToSubMenu(int entry, const char *name, int menu)
-{
-    NameMenuEntry(entry, name);
-    Menus[CurrentMenu].Items[entry-1].submenu = menu;
-}
-
-void glutRemoveMenuItem(int entry)
-{
-    memmove(Menus[CurrentMenu].Items + entry - 1,
-	    Menus[CurrentMenu].Items + entry,
-	    sizeof(*Menus[0].Items) * (Menus[CurrentMenu].NumItems - entry));
-    Menus[CurrentMenu].NumItems--;
-}
-
-void glutAttachMenu(int button)
-{
-    AttachedMenus[button] = CurrentMenu;
-}
-
-void glutDetachMenu(int button)
-{
-    AttachedMenus[button] = 0;
-}
-
-/* --------- Callbacks ------------ */
-void glutDisplayFunc(void (*func)(void))
-{
-    DisplayFunc = func;
-}
-
-void glutOverlayDisplayFunc(void (*func)(void))
-{
-}
-
-void glutReshapeFunc(void (*func)(int width, int height))
-{
-    ReshapeFunc = func;
-}
-
-void glutKeyboardFunc(void (*func)(unsigned char key, int x, int y))
-{
-    KeyboardFunc = func;
-}
-
-void glutMouseFunc(void (*func)(int button, int state, int x, int y))
-{
-    MouseEnabled = 1;
-    MouseFunc = func;
-}
-
-void glutMotionFunc(void (*func)(int x, int y))
-{
-    MouseEnabled = 1;
-    MotionFunc = func;
-}
-
-void glutPassiveMotionFunc(void (*func)(int x, int y))
-{
-    MouseEnabled = 1;
-    PassiveMotionFunc = func;
-}
-
-void glutVisibilityFunc(void (*func)(int state))
-{
-    VisibilityFunc = func;
-}
-
-void glutEntryFunc(void (*func)(int state))
-{
-}
-
-void glutSpecialFunc(void (*func)(int key, int x, int y))
-{
-    SpecialFunc = func;
-}
-
-void glutSpaceballMotionFunc(void (*func)(int x, int y, int z))
-{
-}
-
-void glutSpaceballRotateFunc(void (*func)(int x, int y, int z))
-{
-}
-
-void glutButtonBoxFunc(void (*func)(int button, int state))
-{
-}
-
-void glutDialsFunc(void (*func)(int dial, int value))
-{
-}
-
-void glutTabletMotionFunc(void (*func)(int x, int y))
-{
-}
-
-void glutTabletButtonFunc(void (*func)(int button, int state,
-				       int x, int y))
-{
-}
-
-void glutMenuStatusFunc(void (*func)(int status, int x, int y))
-{
-    MenuStatusFunc = func;
-}
-
-void glutMenuStateFunc(void (*func)(int status))
-{
-    MenuStateFunc = func;
-}
-
-void glutIdleFunc(void (*func)(void))
-{
-    IdleFunc = func;
-}
-
-void glutTimerFunc(unsigned int msecs,
-		   void (*func)(int value), int value)
-{
-    struct GlutTimer *timer = malloc(sizeof *timer);
-    timer->time = glutGet(GLUT_ELAPSED_TIME) + msecs;
-    timer->func = func;
-    timer->value = value;
-
-    struct GlutTimer **head = &GlutTimers;
-    while(*head && (*head)->time < timer->time)
-	head = &(*head)->next;
-
-    timer->next = *head;
-    *head = timer;
-}
-
-/* --------- Color Map ------------*/
-#define TOCMAP(x) (unsigned short)((x<0?0:x>1?1:x) * (GLfloat) (2<<16))
-#define FROMCMAP(x) (GLfloat)x / (GLfloat)(2<<16)
-
-void glutSetColor(int cell, GLfloat red, GLfloat green, GLfloat blue)
-{
-    if(cell >=0 && cell < 256) {
-
-	ColorMap.red[cell] = TOCMAP(red);
-	ColorMap.green[cell] = TOCMAP(green); 
-	ColorMap.blue[cell] = TOCMAP(blue);
-
-	ColorMap.start = cell;
-	ColorMap.len = 1;
-
-	if (ioctl(FrameBufferFD, FBIOPUTCMAP, (void *) &ColorMap) < 0)
-	    fprintf(stderr, "ioctl(FBIOPUTCMAP) failed [%d]\n", cell);
-    }
-}
-
-GLfloat glutGetColor(int cell, int component)
-{
-    if(!(DisplayMode & GLUT_INDEX))
-	return -1.0;
-
-    if(cell < 0 || cell > 256)
-	return -1.0;
-
-    switch(component) {
-    case GLUT_RED:
-	return FROMCMAP(ColorMap.red[cell]);
-    case GLUT_GREEN:
-	return FROMCMAP(ColorMap.green[cell]);
-    case GLUT_BLUE:
-	return FROMCMAP(ColorMap.blue[cell]);
-    }
-    return -1.0;
-}
-
-void glutCopyColormap(int win)
-{
-}
-
-/* --------- State ------------*/
-void glutWarpPointer(int x, int y) 
-{
-    if(x < 0)
-	x = 0;
-    if(x >= VarInfo.xres) 
-	x = VarInfo.xres - 1;
-    MouseX = x;
-
-    if(y < 0)
-	y = 0;
-    if(y >= VarInfo.yres) 
-	y = VarInfo.yres - 1;
-    MouseY = y;
-
-    EraseCursor();
-    SwapCursor();
-}
-
-int glutGet(GLenum state)
-{
-    switch(state) {
-    case GLUT_WINDOW_X:
-	return 0;
-    case GLUT_WINDOW_Y:
-	return 0;
-    case GLUT_INIT_WINDOW_WIDTH:
-    case GLUT_WINDOW_WIDTH:
-    case GLUT_SCREEN_WIDTH:
-	return VarInfo.xres;
-    case GLUT_INIT_WINDOW_HEIGHT:
-    case GLUT_WINDOW_HEIGHT:
-    case GLUT_SCREEN_HEIGHT:
-	return VarInfo.yres;
-    case GLUT_WINDOW_BUFFER_SIZE:
-	return VarInfo.bits_per_pixel;
-    case GLUT_WINDOW_STENCIL_SIZE:
-	return StencilSize;
-    case GLUT_WINDOW_DEPTH_SIZE:
-	return DepthSize;
-    case GLUT_WINDOW_RED_SIZE:
-	return VarInfo.red.length;
-    case GLUT_WINDOW_GREEN_SIZE:
-	return VarInfo.green.length;
-    case GLUT_WINDOW_BLUE_SIZE:
-	return VarInfo.green.length;
-    case GLUT_WINDOW_ALPHA_SIZE:
-	return VarInfo.transp.length;
-    case GLUT_WINDOW_ACCUM_RED_SIZE:
-    case GLUT_WINDOW_ACCUM_GREEN_SIZE:
-    case GLUT_WINDOW_ACCUM_BLUE_SIZE:
-    case GLUT_WINDOW_ACCUM_ALPHA_SIZE:
-	return AccumSize;
-    case GLUT_WINDOW_DOUBLEBUFFER:
-	if(DisplayMode & GLUT_DOUBLE)
-	    return 1;
-	return 0;
-    case GLUT_WINDOW_RGBA:
-	if(DisplayMode & GLUT_INDEX)
-	    return 0;
-	return 1;
-    case GLUT_WINDOW_PARENT:
-	return 0;
-    case GLUT_WINDOW_NUM_CHILDREN:
-	return 0;
-    case GLUT_WINDOW_COLORMAP_SIZE:
-	if(DisplayMode & GLUT_INDEX)
-	    return 256;
-	return 0;
-    case GLUT_WINDOW_NUM_SAMPLES:
-	return 0;
-    case GLUT_WINDOW_STEREO:
-	return 0;
-    case GLUT_WINDOW_CURSOR:
-	return CurrentCursor;
-    case GLUT_SCREEN_WIDTH_MM:
-	return VarInfo.width;
-    case GLUT_SCREEN_HEIGHT_MM:
-	return VarInfo.height;
-    case GLUT_MENU_NUM_ITEMS:
-	if(CurrentMenu)
-	    return Menus[CurrentMenu].NumItems;
-	return 0;
-    case GLUT_DISPLAY_MODE_POSSIBLE:
-	if((DisplayMode & GLUT_MULTISAMPLE)
-	|| (DisplayMode & GLUT_STEREO)
-	|| (DisplayMode & GLUT_LUMINANCE)
-	|| (DisplayMode & GLUT_ALPHA) && (DisplayMode & GLUT_INDEX))
-	    return 0;
-	return 1;
-    case GLUT_INIT_DISPLAY_MODE:
-	return DisplayMode;
-    case GLUT_INIT_WINDOW_X:
-    case GLUT_INIT_WINDOW_Y:
-	return 0;
-    case GLUT_ELAPSED_TIME:
-	{
-	    static struct timeval tv;
-	    gettimeofday(&tv, 0);
-	    return 1000 * (tv.tv_sec - StartTime.tv_sec)
-		+ (tv.tv_usec - StartTime.tv_usec) / 1000;
-	}
-    }
-}
-
-int glutLayerGet(GLenum info)
-{
-    switch(info) {
-    case GLUT_OVERLAY_POSSIBLE:
-	return 0;
-    case GLUT_LAYER_IN_USE:
-	return GLUT_NORMAL;
-    case GLUT_HAS_OVERLAY:
-	return 0;
-    case GLUT_TRANSPARENT_INDEX:
-	return -1;
-    case GLUT_NORMAL_DAMAGED:
-	return Redisplay;
-    case GLUT_OVERLAY_DAMAGED:
-	return -1;
-    }
-    return -1;
-}
-
-int glutDeviceGet(GLenum info)
-{
-    switch(info) {
-    case GLUT_HAS_KEYBOARD:
-	return 1;
-    case GLUT_HAS_MOUSE:
-    case GLUT_NUM_MOUSE_BUTTONS:
-	return NumMouseButtons;
-    case GLUT_HAS_SPACEBALL:
-    case GLUT_HAS_DIAL_AND_BUTTON_BOX:
-    case GLUT_HAS_TABLET:
-	return 0;
-    case GLUT_NUM_SPACEBALL_BUTTONS:
-    case GLUT_NUM_BUTTON_BOX_BUTTONS:
-    case GLUT_NUM_DIALS:
-    case GLUT_NUM_TABLET_BUTTONS:
-	return 0;
-    }
-    return -1;
-}
-
-int glutGetModifiers(void){
-    return KeyboardModifiers;
-}
-
-/* ------------- extensions ------------ */
-int glutExtensionSupported(const char *extension)
-{
-    const char *exts = (const char *) glGetString(GL_EXTENSIONS);
-    const char *start = exts;
-    int len = strlen(extension);
-
-    for(;;) {
-	const char *p = strstr(exts, extension);
-	if(!p)
-	    break;
-	if((p == start || p[-1] == ' ') && (p[len] == ' ' || p[len] == 0))
-	    return 1;
-	exts = p + len;
-    }
-    return 0;
-}
-
-void glutReportErrors(void)
-{
-  GLenum error;
-
-  while ((error = glGetError()) != GL_NO_ERROR)
-    fprintf(stderr, "GL error: %s", gluErrorString(error));
-}
-
-static struct {
-   const char *name;
-   const GLUTproc address;
-} glut_functions[] = {
-   { "glutInit", (const GLUTproc) glutInit },
-   { "glutInitDisplayMode", (const GLUTproc) glutInitDisplayMode },
-   { "glutInitWindowPosition", (const GLUTproc) glutInitWindowPosition },
-   { "glutInitWindowSize", (const GLUTproc) glutInitWindowSize },
-   { "glutMainLoop", (const GLUTproc) glutMainLoop },
-   { "glutCreateWindow", (const GLUTproc) glutCreateWindow },
-   { "glutCreateSubWindow", (const GLUTproc) glutCreateSubWindow },
-   { "glutDestroyWindow", (const GLUTproc) glutDestroyWindow },
-   { "glutPostRedisplay", (const GLUTproc) glutPostRedisplay },
-   { "glutSwapBuffers", (const GLUTproc) glutSwapBuffers },
-   { "glutGetWindow", (const GLUTproc) glutGetWindow },
-   { "glutSetWindow", (const GLUTproc) glutSetWindow },
-   { "glutSetWindowTitle", (const GLUTproc) glutSetWindowTitle },
-   { "glutSetIconTitle", (const GLUTproc) glutSetIconTitle },
-   { "glutPositionWindow", (const GLUTproc) glutPositionWindow },
-   { "glutReshapeWindow", (const GLUTproc) glutReshapeWindow },
-   { "glutPopWindow", (const GLUTproc) glutPopWindow },
-   { "glutPushWindow", (const GLUTproc) glutPushWindow },
-   { "glutIconifyWindow", (const GLUTproc) glutIconifyWindow },
-   { "glutShowWindow", (const GLUTproc) glutShowWindow },
-   { "glutHideWindow", (const GLUTproc) glutHideWindow },
-   { "glutFullScreen", (const GLUTproc) glutFullScreen },
-   { "glutSetCursor", (const GLUTproc) glutSetCursor },
-   { "glutWarpPointer", (const GLUTproc) glutWarpPointer },
-   { "glutEstablishOverlay", (const GLUTproc) glutEstablishOverlay },
-   { "glutRemoveOverlay", (const GLUTproc) glutRemoveOverlay },
-   { "glutUseLayer", (const GLUTproc) glutUseLayer },
-   { "glutPostOverlayRedisplay", (const GLUTproc) glutPostOverlayRedisplay },
-   { "glutShowOverlay", (const GLUTproc) glutShowOverlay },
-   { "glutHideOverlay", (const GLUTproc) glutHideOverlay },
-   { "glutCreateMenu", (const GLUTproc) glutCreateMenu },
-   { "glutDestroyMenu", (const GLUTproc) glutDestroyMenu },
-   { "glutGetMenu", (const GLUTproc) glutGetMenu },
-   { "glutSetMenu", (const GLUTproc) glutSetMenu },
-   { "glutAddMenuEntry", (const GLUTproc) glutAddMenuEntry },
-   { "glutAddSubMenu", (const GLUTproc) glutAddSubMenu },
-   { "glutChangeToMenuEntry", (const GLUTproc) glutChangeToMenuEntry },
-   { "glutChangeToSubMenu", (const GLUTproc) glutChangeToSubMenu },
-   { "glutRemoveMenuItem", (const GLUTproc) glutRemoveMenuItem },
-   { "glutAttachMenu", (const GLUTproc) glutAttachMenu },
-   { "glutDetachMenu", (const GLUTproc) glutDetachMenu },
-   { "glutDisplayFunc", (const GLUTproc) glutDisplayFunc },
-   { "glutReshapeFunc", (const GLUTproc) glutReshapeFunc },
-   { "glutKeyboardFunc", (const GLUTproc) glutKeyboardFunc },
-   { "glutMouseFunc", (const GLUTproc) glutMouseFunc },
-   { "glutMotionFunc", (const GLUTproc) glutMotionFunc },
-   { "glutPassiveMotionFunc", (const GLUTproc) glutPassiveMotionFunc },
-   { "glutEntryFunc", (const GLUTproc) glutEntryFunc },
-   { "glutVisibilityFunc", (const GLUTproc) glutVisibilityFunc },
-   { "glutIdleFunc", (const GLUTproc) glutIdleFunc },
-   { "glutTimerFunc", (const GLUTproc) glutTimerFunc },
-   { "glutMenuStateFunc", (const GLUTproc) glutMenuStateFunc },
-   { "glutSpecialFunc", (const GLUTproc) glutSpecialFunc },
-   { "glutSpaceballRotateFunc", (const GLUTproc) glutSpaceballRotateFunc },
-   { "glutButtonBoxFunc", (const GLUTproc) glutButtonBoxFunc },
-   { "glutDialsFunc", (const GLUTproc) glutDialsFunc },
-   { "glutTabletMotionFunc", (const GLUTproc) glutTabletMotionFunc },
-   { "glutTabletButtonFunc", (const GLUTproc) glutTabletButtonFunc },
-   { "glutMenuStatusFunc", (const GLUTproc) glutMenuStatusFunc },
-   { "glutOverlayDisplayFunc", (const GLUTproc) glutOverlayDisplayFunc },
-   { "glutSetColor", (const GLUTproc) glutSetColor },
-   { "glutGetColor", (const GLUTproc) glutGetColor },
-   { "glutCopyColormap", (const GLUTproc) glutCopyColormap },
-   { "glutGet", (const GLUTproc) glutGet },
-   { "glutDeviceGet", (const GLUTproc) glutDeviceGet },
-   { "glutExtensionSupported", (const GLUTproc) glutExtensionSupported },
-   { "glutGetModifiers", (const GLUTproc) glutGetModifiers },
-   { "glutLayerGet", (const GLUTproc) glutLayerGet },
-   { "glutGetProcAddress", (const GLUTproc) glutGetProcAddress },
-   { "glutBitmapCharacter", (const GLUTproc) glutBitmapCharacter },
-   { "glutBitmapWidth", (const GLUTproc) glutBitmapWidth },
-   { "glutStrokeCharacter", (const GLUTproc) glutStrokeCharacter },
-   { "glutStrokeWidth", (const GLUTproc) glutStrokeWidth },
-   { "glutBitmapLength", (const GLUTproc) glutBitmapLength },
-   { "glutStrokeLength", (const GLUTproc) glutStrokeLength },
-   { "glutWireSphere", (const GLUTproc) glutWireSphere },
-   { "glutSolidSphere", (const GLUTproc) glutSolidSphere },
-   { "glutWireCone", (const GLUTproc) glutWireCone },
-   { "glutSolidCone", (const GLUTproc) glutSolidCone },
-   { "glutWireCube", (const GLUTproc) glutWireCube },
-   { "glutSolidCube", (const GLUTproc) glutSolidCube },
-   { "glutWireTorus", (const GLUTproc) glutWireTorus },
-   { "glutSolidTorus", (const GLUTproc) glutSolidTorus },
-   { "glutWireDodecahedron", (const GLUTproc) glutWireDodecahedron },
-   { "glutSolidDodecahedron", (const GLUTproc) glutSolidDodecahedron },
-   { "glutWireTeapot", (const GLUTproc) glutWireTeapot },
-   { "glutSolidTeapot", (const GLUTproc) glutSolidTeapot },
-   { "glutWireOctahedron", (const GLUTproc) glutWireOctahedron },
-   { "glutSolidOctahedron", (const GLUTproc) glutSolidOctahedron },
-   { "glutWireTetrahedron", (const GLUTproc) glutWireTetrahedron },
-   { "glutSolidTetrahedron", (const GLUTproc) glutSolidTetrahedron },
-   { "glutWireIcosahedron", (const GLUTproc) glutWireIcosahedron },
-   { "glutSolidIcosahedron", (const GLUTproc) glutSolidIcosahedron },
-   { "glutReportErrors", (const GLUTproc) glutReportErrors },
-   { NULL, NULL }
-};   
-
-GLUTproc glutGetProcAddress(const char *procName)
-{
-   /* Try GLUT functions first */
-   int i;
-   for (i = 0; glut_functions[i].name; i++) {
-      if (strcmp(glut_functions[i].name, procName) == 0)
-         return glut_functions[i].address;
-   }
-
-   /* Try core GL functions */
-  return (GLUTproc) glFBDevGetProcAddress(procName);
-}