nx-X11/extras: Drop Mesa-6.4.1 related files.

author: Mike Gabriel <mike.gabriel@das-netzwerkteam.de> 2017-08-30 16:54:24 +0200
committer: Mike Gabriel <mike.gabriel@das-netzwerkteam.de> 2017-08-30 16:55:09 +0200
commit: 5ecf04c925374c7a3c8d85765053e3cd9c952d67 (patch)
tree: f55241c6ce2668f153ab8f9a966fb36aab8a801d /nx-X11/extras/Mesa_6.4.1/progs/demos
parent: 709bce6cf17d472e65afc845fff87267499d9ad7 (diff)
download: nx-libs-5ecf04c925374c7a3c8d85765053e3cd9c952d67.tar.gz
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99 files changed, 0 insertions, 34333 deletions
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/.cvsignore b/nx-X11/extras/Mesa_6.4.1/progs/demos/.cvsignore
deleted file mode 100644
index 2b8a22512..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/.cvsignore
+++ /dev/null
@@ -1,46 +0,0 @@
-.cvsignore
-arbfplight
-arbocclude
-bounce
-clearspd
-cubemap
-drawpix
-fire
-fplight
-gamma
-gears
-geartrain
-glinfo
-gloss
-gltestperf
-glutfx
-ipers
-isosurf
-lodbias
-morph3d
-multiarb
-occlude
-osdemo
-paltex
-pixeltex
-pointblast
-ray
-readpix
-readtex.c
-readtex.h
-reflect
-renormal
-shadowtex
-spectex
-stex3d
-teapot
-terrain
-tessdemo
-texcyl
-texdown
-texenv
-texobj
-trispd
-tunnel
-tunnel2
-winpos
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/Makefile b/nx-X11/extras/Mesa_6.4.1/progs/demos/Makefile
deleted file mode 100644
index 4bd72d8a5..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/Makefile
+++ /dev/null
@@ -1,115 +0,0 @@
-# progs/demos/Makefile
-
-TOP = ../..
-include $(TOP)/configs/current
-
-INCDIR = $(TOP)/include
-
-OSMESA_LIBS = -L$(LIB_DIR) -lglut -lOSMesa -lGLU -lGL $(APP_LIB_DEPS)
-
-OSMESA16_LIBS = -L$(LIB_DIR) -lglut -lOSMesa16 -lGLU -lGL $(APP_LIB_DEPS)
-
-OSMESA32_LIBS = -L$(LIB_DIR) -lglut -lOSMesa32 -lGLU -lGL $(APP_LIB_DEPS)
-
-LIB_DEP = $(LIB_DIR)/$(GL_LIB_NAME) $(LIB_DIR)/$(GLU_LIB_NAME) $(LIB_DIR)/$(GLUT_LIB_NAME)
-
-PROGS = \
-	arbfplight \
-	arbocclude \
-	bounce \
-	clearspd \
-	cubemap \
-	drawpix \
-	fire \
-	fogcoord \
-	fplight \
-	gamma \
-	gears \
-	geartrain \
-	glinfo \
-	gloss \
-	gltestperf \
-	glutfx \
-	isosurf \
-	ipers \
-	lodbias \
-	morph3d \
-	multiarb \
-	occlude \
-	paltex \
-	pixeltex \
-	pointblast \
-	ray \
-	readpix \
-	reflect \
-	renormal \
-	shadowtex \
-	spectex \
-	spriteblast \
-	stex3d \
-	teapot \
-	terrain \
-	tessdemo \
-	texcyl \
-	texdown \
-	texenv \
-	texobj \
-	trispd \
-	tunnel \
-	tunnel2 \
-	winpos
-
-
-##### RULES #####
-
-.SUFFIXES:
-.SUFFIXES: .c
-
-
-# make executable from .c file:
-.c: $(LIB_DEP) readtex.o
-	$(CC) -I$(INCDIR) $(CFLAGS) $< readtex.o $(APP_LIB_DEPS) -o $@
-
-
-##### TARGETS #####
-
-default: readtex.o $(PROGS)
-
-
-readtex.c: $(TOP)/progs/util/readtex.c
-	cp $< .
-
-readtex.h: $(TOP)/progs/util/readtex.h
-	cp $< .
-
-readtex.o: readtex.c readtex.h
-	$(CC) -c -I$(INCDIR) $(CFLAGS) readtex.c
-
-
-showbuffer.c: $(TOP)/progs/util/showbuffer.c
-	cp $< .
-
-showbuffer.h: $(TOP)/progs/util/showbuffer.h
-	cp $< .
-
-showbuffer.o: showbuffer.c showbuffer.h
-	$(CC) -c -I$(INCDIR) $(CFLAGS) showbuffer.c
-
-
-reflect: reflect.o showbuffer.o readtex.o
-	$(CC) -I$(INCDIR) $(CFLAGS) reflect.o showbuffer.o readtex.o $(APP_LIB_DEPS) -o $@
-
-reflect.o: reflect.c showbuffer.h
-	$(CC) -c -I$(INCDIR) $(CFLAGS) reflect.c
-
-
-shadowtex: shadowtex.o showbuffer.o
-	$(CC) -I$(INCDIR) $(CFLAGS) shadowtex.o showbuffer.o $(APP_LIB_DEPS) -o $@
-
-shadowtex.o: shadowtex.c showbuffer.h
-	$(CC) -c -I$(INCDIR) $(CFLAGS) shadowtex.c
-
-clean:
-	-rm -f $(PROGS)
-	-rm -f *.o *~
-	-rm -f readtex.[ch] showbuffer.[ch]
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/Makefile.cygnus b/nx-X11/extras/Mesa_6.4.1/progs/demos/Makefile.cygnus
deleted file mode 100644
index 0efc1ab0c..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/Makefile.cygnus
+++ /dev/null
@@ -1,87 +0,0 @@
-
-# Mesa 3-D graphics library
-# Version:  3.3
-# Copyright (C) 1995-2000  Brian Paul
-
-
-# Makefile for demo programs for cygnus
-# Stephane Rehel (rehel@worldnet.fr) April 13 1997
-
-
-
-##### MACROS #####
-
-INCDIR = ../include
-LIBDIR = ../lib
-
-GL_LIBS = -L$(LIBDIR) -lglut -lMesaGLU -lMesaGL -lm $(WLIBS)
-
-LIB_DEP = $(LIBDIR)/$(GL_LIB) $(LIBDIR)/$(GLU_LIB) $(LIBDIR)/$(GLUT_LIB)
-
-PROGS = bounce \
-	clearspd \
-	cubemap \
-	drawpix \
-	fire \
-	gamma \
-	gears \
-	geartrain \
-	glinfo \
-	gloss \
-	gltestperf \
-	glutfx \
-	isosurf \
-	ipers \
-	lodbias \
-	morph3d \
-	multiarb \
-	occlude \
-	osdemo \
-	paltex \
-	pixeltex \
-	pointblast \
-	ray \
-	readpix \
-	reflect \
-	renormal \
-	spectex \
-	stex3d \
-	teapot \
-	terrain \
-	tessdemo \
-	texcyl \
-	texdown \
-	texenv \
-	texobj \
-	trispd \
-	tunnel \
-	tunnel2 \
-	winpos
-
-
-##### RULES #####
-
-.SUFFIXES:
-.SUFFIXES: .c
-
-.c: $(LIB_DEP)
-	$(CC) -I$(INCDIR) -I../util $(CFLAGS) $< $(GL_LIBS) -o $@
-
-
-##### TARGETS #####
-
-default:
-	@echo "Specify a target configuration"
-
-clean:
-	-rm *.o *~
-
-realclean:
-	-rm $(PROGS:=.exe)
-	-rm *.o *~
-
-targets: $(PROGS)
-
-include ../Make-config
-
-
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/README b/nx-X11/extras/Mesa_6.4.1/progs/demos/README
deleted file mode 100644
index a3d0c18bb..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/README
+++ /dev/null
@@ -1,230 +0,0 @@
-INTRODUCTION
-------------
-
-This directory is usually included in the Mesa demos distribution or
-in the GLUT distribution.
-
-I have written the demos included in this directory mainly for showing
-the capabilities of the Mesa library when using the Voodoo driver.
-However all the demos are written using the GLUT and OpenGL so they
-work with any GLUT/OpenGL platform (tested: Linux+Mesa+Voodoo driver,
-Linux+Mesa+X11 driver, Win95+Mesa+Voodoo driver and SGI Onyx IR thanks
-to Mark Kilgard).
-
-All the demos make an heavy use of texture mapping, blending, etc. so
-you _need_ some kind of hardware support for the OpenGL otherwise they
-will run at ~1fps. You need also a OpenGL 1.1 compliant library.
-
-You can find some screenshot of these demos at
-http://www-hmw.caribel.pisa.it/fxmesa/fxdemos.hmtl
-
-Write me if you find some bug in the demos.
-
-David Bucciarelli (tech.hmw@plus.it)
-
-Humanware s.r.l.
-Via XXIV Maggio 62
-Pisa, Italy
-Tel./Fax +39-50-554108
-email: info.hmw@plus.it
-www: www-hmw.caribel.pisa.it
-
-
-A BRIEF DESCRIPTION OF THE DEMOS
---------------------------------
-
-
-IPERS
------
-
-Sources: ipers.c image.c
-
-A nice spinning fractal object.
-
-
-RAY
----
-
-Sources: ray.c
-
-I'm using ray tracing to dynamically generate texture maps with
-specular, diffuse, shadows, and mirror colors. Each frame the texture
-maps of the plane and of the sphere are partially updated.  With this
-technique you can obtain true mirrors, shadows, specular highlights,
-bump mapping, etc. in realtime.  This demo is really CPU intensive
-(~25fps on a PentiumII@300MHz with a Pure3D).  Support on-the-fly
-switching between fullscreen and in-window rendering under Linux/Mesa
-(start your X server in 16 bpp mode and press the spacebar).
-
-
-TUNNEL
-------
-
-Sources: tunnel.c image.c sources.c
-Data: bw.rgb tile.rgb
-
-The model was designed and prelighted with Alias|Wavefront
-PowerAnimator V8. Triangle strips were built with a tool written by me
-and then statically included in the sources.  This demo doesn't
-require the ZBuffer and use antialiased polygons.  Support on-the-fly
-switching between fullscreen and in-window rendering under Linux/Mesa
-(start your X server in 16 bpp mode and press the spacebar).
-
-
-TUNNEL2
-------
-
-Sources: tunnel2.c image.c sources.c
-Data: bw.rgb tile.rgb
-
-The some tunnel demo but with two output channels. A nice
-example of the Mesa/Voodoo support for multiple boards in
-the some PC.
-
-
-TEAPOT
-------
-
-Sources: teapot.c image.c dteapot.c shadow.c
-Data: bw.rgb tile.rgb
-
-The shadow is drawn projecting the teapot geometry over the plane. All
-other light effects are drawn using the standard OpenGL capabilities.
-Support on-the-fly switching between fullscreen and in-window
-rendering under Linux/Mesa (start your X server in 16 bpp mode and
-press the spacebar).
-
-
-FIRE
-----
-
-Sources: fire.c image.c
-Data: s128.rgb tree2.rgb
-
-The demo use a small particle system to draw some nice visual effect.
-You can interactively change many parameters of the particle system
-and you can choose the number of particles at the startup ('fire
-4000').  This demo should be called fountain.  Support on-the-fly
-switching between fullscreen and in-window rendering under Linux/Mesa
-(start your X server in 16 bpp mode and press the spacebar).
-
-
-TERRAIN
--------
-
-Sources: mesaland.c
-
-This demo is base on another demo written by Mikael SkiZoWalker.  I
-have added the capabilities to freely fly around, view culling and
-some nice color.  Support on-the-fly switching between fullscreen and
-in-window rendering under Linux/Mesa (start your X server in 16 bpp
-mode and press the spacebar).
-
-
-GLTEST
-------
-
-Sources: gltest.c
-
-This is a simple benchmark suite that I'm using in the development of
-the Mesa/Voodoo driver. Type 'gltest >my.res' and you will get some
-data about the performances of your OpenGL. Follow the results with my
-PC (Linux+Mesa-2.6+PentiumII@300MHz+Pure3D):
-
-Simple Points
-587900.080674 Pnts/sec
-
-Smooth Lines
-SIZE=480 => 39007.426183 Lins/sec
-SIZE=250 => 74575.016485 Lins/sec
-SIZE=100 => 179734.882409 Lins/sec
-SIZE=050 => 183987.795297 Lins/sec
-SIZE=025 => 183820.086309 Lins/sec
-
-
-ZSmooth Triangles
-SIZE=480 => 784.954997 Tris/sec
-SIZE=250 => 2862.325889 Tris/sec
-SIZE=100 => 17779.492938 Tris/sec
-SIZE=050 => 159339.829844 Tris/sec
-SIZE=025 => 428602.984008 Tris/sec
-
-
-ZSmooth Tex Blend Triangles
-SIZE=480 => 784.473931 Tris/sec
-SIZE=250 => 2853.781513 Tris/sec
-SIZE=100 => 17598.252146 Tris/sec
-SIZE=050 => 152632.578337 Tris/sec
-SIZE=025 => 377584.760048 Tris/sec
-
-
-ZSmooth Tex Blend TMesh Triangles
-SIZE=400 => 563.900695 Tris/sec, MPixel Fill/sec: 45.112056
-SIZE=250 => 1449.777225 Tris/sec, MPixel Fill/sec: 45.305538
-SIZE=100 => 8702.869121 Tris/sec, MPixel Fill/sec: 43.514346
-SIZE=050 => 31896.867466 Tris/sec, MPixel Fill/sec: 39.871084
-SIZE=025 => 114037.262894 Tris/sec, MPixel Fill/sec: 35.636645
-SIZE=010 => 220494.235839 Tris/sec, MPixel Fill/sec: 11.024712
-SIZE=005 => 225615.506651 Tris/sec, MPixel Fill/sec: 2.820194
-SIZE=002 => 225607.681439 Tris/sec, MPixel Fill/sec: 0.451215
-
-
-Color/Depth Buffer Clears
-295.042474 Clrs/sec, MPixel Fill/sec: 90.553256
-
-
-Follow the results with my
-PC (Linux+Mesa-3.0beta5+PentiumII@300MHz+Voodoo2):
-
-
-Simple Points
-1620113.525130 Pnts/sec
-
-Smooth Lines
-SIZE=480 => 73841.166065 Lins/sec
-SIZE=250 => 140794.035316 Lins/sec
-SIZE=100 => 344185.242157 Lins/sec
-SIZE=050 => 420399.008289 Lins/sec
-SIZE=025 => 420261.389773 Lins/sec
-
-
-ZSmooth Triangles
-SIZE=480 => 1434.668506 Tris/sec
-SIZE=250 => 5228.449614 Tris/sec
-SIZE=100 => 46603.815842 Tris/sec
-SIZE=050 => 325757.045961 Tris/sec
-SIZE=025 => 589022.403336 Tris/sec
-
-
-ZSmooth Tex Blend Triangles
-SIZE=480 => 1414.900041 Tris/sec
-SIZE=250 => 5006.055235 Tris/sec
-SIZE=100 => 43602.252031 Tris/sec
-SIZE=050 => 303497.092692 Tris/sec
-SIZE=025 => 517087.428669 Tris/sec
-
-
-ZSmooth Tex Blend TMesh Triangles
-SIZE=400 => 1023.273112 Tris/sec, MPixel Fill/sec: 81.861849
-SIZE=250 => 2595.692121 Tris/sec, MPixel Fill/sec: 81.115379
-SIZE=100 => 15788.198912 Tris/sec, MPixel Fill/sec: 78.940995
-SIZE=050 => 58784.121300 Tris/sec, MPixel Fill/sec: 73.480152
-SIZE=025 => 244233.873481 Tris/sec, MPixel Fill/sec: 76.323085
-SIZE=010 => 474995.004191 Tris/sec, MPixel Fill/sec: 23.749750
-SIZE=005 => 475124.354163 Tris/sec, MPixel Fill/sec: 5.939054
-SIZE=002 => 474959.089503 Tris/sec, MPixel Fill/sec: 0.949918
-
-
-Color/Depth Buffer Clears
-478.654830 Clrs/sec, MPixel Fill/sec: 146.906826
-
-
-PALTEX and GLBPALTX
--------------------
-
-Sources: paltex.c and glbpaltx.c
-
-The PALTEX example was written by Brian Paul and it shows the
-capabilities of the GL_EXT_paletted_texture extension.  I have written
-the other example in order to show the capabilities of the
-gl3DfxSetPaletteEXT() (it used only by GLQuake and Quake2).
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/Windows/all.dsp b/nx-X11/extras/Mesa_6.4.1/progs/demos/Windows/all.dsp
deleted file mode 100644
index b47283c58..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/Windows/all.dsp
+++ /dev/null
@@ -1,101 +0,0 @@
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diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/Windows/bounce.dsp b/nx-X11/extras/Mesa_6.4.1/progs/demos/Windows/bounce.dsp
deleted file mode 100644
index 0510e77d9..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/Windows/bounce.dsp
+++ /dev/null
@@ -1,112 +0,0 @@
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diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/arbfplight.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/arbfplight.c
deleted file mode 100644
index 6ad95d4d7..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/arbfplight.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/*
- * Use GL_ARB_fragment_program and GL_ARB_vertex_program to implement
- * simple per-pixel lighting.
- *
- * Brian Paul
- * 17 April 2003
- */
-
-#include <assert.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glut.h>
-
-
-static GLfloat Diffuse[4] = { 0.5, 0.5, 1.0, 1.0 };
-static GLfloat Specular[4] = { 0.8, 0.8, 0.8, 1.0 };
-static GLfloat LightPos[4] = { 0.0, 10.0, 20.0, 1.0 };
-static GLfloat Delta = 1.0;
-
-static GLuint FragProg;
-static GLuint VertProg;
-static GLboolean Anim = GL_TRUE;
-static GLboolean Wire = GL_FALSE;
-static GLboolean PixelLight = GL_TRUE;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-static GLfloat Xrot = 0, Yrot = 0;
-
-static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB_func;
-static PFNGLPROGRAMLOCALPARAMETER4DARBPROC glProgramLocalParameter4dARB_func;
-static PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC glGetProgramLocalParameterdvARB_func;
-static PFNGLGENPROGRAMSARBPROC glGenProgramsARB_func;
-static PFNGLPROGRAMSTRINGARBPROC glProgramStringARB_func;
-static PFNGLBINDPROGRAMARBPROC glBindProgramARB_func;
-static PFNGLISPROGRAMARBPROC glIsProgramARB_func;
-static PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB_func;
-
-/* These must match the indexes used in the fragment program */
-#define LIGHTPOS 3
-
-/* Set to one to test ARB_fog_linear program option */
-#define DO_FRAGMENT_FOG 0
-
-
-static void Redisplay( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-   if (PixelLight) {
-      glProgramLocalParameter4fvARB_func(GL_FRAGMENT_PROGRAM_ARB,
-                                         LIGHTPOS, LightPos);
-      glEnable(GL_FRAGMENT_PROGRAM_ARB);
-      glEnable(GL_VERTEX_PROGRAM_ARB);
-      glDisable(GL_LIGHTING);
-   }
-   else {
-      glLightfv(GL_LIGHT0, GL_POSITION, LightPos);
-      glDisable(GL_FRAGMENT_PROGRAM_ARB);
-      glDisable(GL_VERTEX_PROGRAM_ARB);
-      glEnable(GL_LIGHTING);
-   }
-
-   glPushMatrix();
-   glRotatef(Xrot, 1, 0, 0);
-   glRotatef(Yrot, 0, 1, 0);
-   glutSolidSphere(2.0, 10, 5);
-   glPopMatrix();
-
-   glutSwapBuffers();
-
-   Frames++;
-
-   if (Anim) {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      if (t - T0 >= 5000) {
-	 GLfloat seconds = (t - T0) / 1000.0;
-	 GLfloat fps = Frames / seconds;
-	 printf("%d frames in %6.3f seconds = %6.3f FPS\n", Frames, seconds, fps);
-	 T0 = t;
-	 Frames = 0;
-      }
-   }
-}
-
-
-static void Idle(void)
-{
-   LightPos[0] += Delta;
-   if (LightPos[0] > 25.0)
-      Delta = -1.0;
-   else if (LightPos[0] <- 25.0)
-      Delta = 1.0;
-   glutPostRedisplay();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -15.0 );
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-     case ' ':
-     case 'a':
-        Anim = !Anim;
-        if (Anim)
-           glutIdleFunc(Idle);
-        else
-           glutIdleFunc(NULL);
-        break;
-      case 'x':
-         LightPos[0] -= 1.0;
-         break;
-      case 'X':
-         LightPos[0] += 1.0;
-         break;
-      case 'w':
-         Wire = !Wire;
-         if (Wire)
-            glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-         else
-            glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-         break;
-      case 'p':
-         PixelLight = !PixelLight;
-         if (PixelLight) {
-            printf("Per-pixel lighting\n");
-         }
-         else {
-            printf("Conventional lighting\n");
-         }
-         break;
-      case 27:
-         glDeleteProgramsARB_func(1, &VertProg);
-         glDeleteProgramsARB_func(1, &FragProg);
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-static void SpecialKey( int key, int x, int y )
-{
-   const GLfloat step = 3.0;
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         Xrot -= step;
-         break;
-      case GLUT_KEY_DOWN:
-         Xrot += step;
-         break;
-      case GLUT_KEY_LEFT:
-         Yrot -= step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Yrot += step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-/* A helper for finding errors in program strings */
-static int FindLine( const char *program, int position )
-{
-   int i, line = 1;
-   for (i = 0; i < position; i++) {
-      if (program[i] == '\n')
-         line++;
-   }
-   return line;
-}
-
-
-static void Init( void )
-{
-   GLint errorPos;
-
-   /* Yes, this could be expressed more efficiently */
-   static const char *fragProgramText =
-      "!!ARBfp1.0\n"
-#if DO_FRAGMENT_FOG
-      "OPTION ARB_fog_linear; \n"
-#endif
-      "PARAM Diffuse = state.material.diffuse; \n"
-      "PARAM Specular = state.material.specular; \n"
-      "PARAM LightPos = program.local[3]; \n"
-      "TEMP lightDir, normal, len; \n"
-      "TEMP dotProd, specAtten; \n"
-      "TEMP diffuseColor, specularColor; \n"
-
-      "# Compute normalized light direction \n"
-      "DP3 len.x, LightPos, LightPos; \n"
-      "RSQ len.y, len.x; \n"
-      "MUL lightDir, LightPos, len.y; \n"
-
-      "# Compute normalized normal \n"
-      "DP3 len.x, fragment.texcoord[0], fragment.texcoord[0]; \n"
-      "RSQ len.y, len.x; \n"
-      "MUL normal, fragment.texcoord[0], len.y; \n"
-
-      "# Compute dot product of light direction and normal vector\n"
-      "DP3_SAT dotProd, lightDir, normal;             # limited to [0,1]\n"
-
-      "MUL diffuseColor, Diffuse, dotProd;            # diffuse attenuation\n"
-
-      "POW specAtten.x, dotProd.x, {20.0}.x;          # specular exponent\n"
-
-      "MUL specularColor, Specular, specAtten.x;      # specular attenuation\n"
-
-#if DO_FRAGMENT_FOG
-      "# need to clamp color to [0,1] before fogging \n"
-      "ADD_SAT result.color, diffuseColor, specularColor; # add colors\n"
-#else
-      "# clamping will be done after program's finished \n"
-      "ADD result.color, diffuseColor, specularColor; # add colors\n"
-#endif
-      "END \n"
-      ;
-
-   static const char *vertProgramText =
-      "!!ARBvp1.0\n"
-      "ATTRIB pos = vertex.position; \n"
-      "ATTRIB norm = vertex.normal; \n"
-      "PARAM modelview[4] = { state.matrix.modelview }; \n"
-      "PARAM modelviewProj[4] = { state.matrix.mvp }; \n"
-      "PARAM invModelview[4] = { state.matrix.modelview.invtrans }; \n"
-
-      "# typical modelview/projection transform \n"
-      "DP4 result.position.x, pos, modelviewProj[0]; \n"
-      "DP4 result.position.y, pos, modelviewProj[1]; \n"
-      "DP4 result.position.z, pos, modelviewProj[2]; \n"
-      "DP4 result.position.w, pos, modelviewProj[3]; \n"
-
-      "# transform normal by inv transpose of modelview, put in tex0 \n"
-      "DP3 result.texcoord[0].x, norm, invModelview[0]; \n"
-      "DP3 result.texcoord[0].y, norm, invModelview[1]; \n"
-      "DP3 result.texcoord[0].z, norm, invModelview[2]; \n"
-      "DP3 result.texcoord[0].w, norm, invModelview[3]; \n"
-
-#if DO_FRAGMENT_FOG
-      "# compute fog coordinate = vertex eye-space Z coord (negated)\n"
-      "DP4 result.fogcoord, -pos, modelview[2]; \n"
-#endif
-      "END\n";
-      ;
-
-   if (!glutExtensionSupported("GL_ARB_vertex_program")) {
-      printf("Sorry, this demo requires GL_ARB_vertex_program\n");
-      exit(1);
-   }
-   if (!glutExtensionSupported("GL_ARB_fragment_program")) {
-      printf("Sorry, this demo requires GL_ARB_fragment_program\n");
-      exit(1);
-   }
-         
-   /*
-    * Get extension function pointers.
-    */
-   glProgramLocalParameter4fvARB_func = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) glutGetProcAddress("glProgramLocalParameter4fvARB");
-   assert(glProgramLocalParameter4fvARB_func);
-
-   glProgramLocalParameter4dARB_func = (PFNGLPROGRAMLOCALPARAMETER4DARBPROC) glutGetProcAddress("glProgramLocalParameter4dARB");
-   assert(glProgramLocalParameter4dARB_func);
-
-   glGetProgramLocalParameterdvARB_func = (PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC) glutGetProcAddress("glGetProgramLocalParameterdvARB");
-   assert(glGetProgramLocalParameterdvARB_func);
-
-   glGenProgramsARB_func = (PFNGLGENPROGRAMSARBPROC) glutGetProcAddress("glGenProgramsARB");
-   assert(glGenProgramsARB_func);
-
-   glProgramStringARB_func = (PFNGLPROGRAMSTRINGARBPROC) glutGetProcAddress("glProgramStringARB");
-   assert(glProgramStringARB_func);
-
-   glBindProgramARB_func = (PFNGLBINDPROGRAMARBPROC) glutGetProcAddress("glBindProgramARB");
-   assert(glBindProgramARB_func);
-
-   glIsProgramARB_func = (PFNGLISPROGRAMARBPROC) glutGetProcAddress("glIsProgramARB");
-   assert(glIsProgramARB_func);
-
-   glDeleteProgramsARB_func = (PFNGLDELETEPROGRAMSARBPROC) glutGetProcAddress("glDeleteProgramsARB");
-   assert(glDeleteProgramsARB_func);
-
-   /*
-    * Fragment program
-    */
-   glGenProgramsARB_func(1, &FragProg);
-   assert(FragProg > 0);
-   glBindProgramARB_func(GL_FRAGMENT_PROGRAM_ARB, FragProg);
-   glProgramStringARB_func(GL_FRAGMENT_PROGRAM_ARB,
-                           GL_PROGRAM_FORMAT_ASCII_ARB,
-                           strlen(fragProgramText),
-                           (const GLubyte *) fragProgramText);
-   glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorPos);
-   if (glGetError() != GL_NO_ERROR || errorPos != -1) {
-      int l = FindLine(fragProgramText, errorPos);
-      printf("Fragment Program Error (pos=%d line=%d): %s\n", errorPos, l,
-             (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
-      exit(0);
-   }
-   assert(glIsProgramARB_func(FragProg));
-
-   /*
-    * Do some sanity tests
-    */
-   {
-      GLdouble v[4];
-      glProgramLocalParameter4dARB_func(GL_FRAGMENT_PROGRAM_ARB, 8,
-                                   10.0, 20.0, 30.0, 40.0);
-      glGetProgramLocalParameterdvARB_func(GL_FRAGMENT_PROGRAM_ARB, 8, v);
-      assert(v[0] == 10.0);
-      assert(v[1] == 20.0);
-      assert(v[2] == 30.0);
-      assert(v[3] == 40.0);
-   }
-
-   /*
-    * Vertex program
-    */
-   glGenProgramsARB_func(1, &VertProg);
-   assert(VertProg > 0);
-   glBindProgramARB_func(GL_VERTEX_PROGRAM_ARB, VertProg);
-   glProgramStringARB_func(GL_VERTEX_PROGRAM_ARB,
-                           GL_PROGRAM_FORMAT_ASCII_ARB,
-                           strlen(vertProgramText),
-                           (const GLubyte *) vertProgramText);
-   glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorPos);
-   if (glGetError() != GL_NO_ERROR || errorPos != -1) {
-      int l = FindLine(fragProgramText, errorPos);
-      printf("Vertex Program Error (pos=%d line=%d): %s\n", errorPos, l,
-             (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
-      exit(0);
-   }
-   assert(glIsProgramARB_func(VertProg));
-
-   /*
-    * Misc init
-    */
-   glClearColor(0.3, 0.3, 0.3, 0.0);
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_LIGHT0);
-   glEnable(GL_LIGHTING);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, Diffuse);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, Specular);
-   glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 20.0);
-
-#if DO_FRAGMENT_FOG
-   {
-      /* Green-ish fog color */
-      static const GLfloat fogColor[4] = {0.5, 1.0, 0.5, 0};
-      glFogfv(GL_FOG_COLOR, fogColor);
-      glFogf(GL_FOG_START, 5.0);
-      glFogf(GL_FOG_END, 25.0);
-   }
-#endif
-
-   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
-   printf("Press p to toggle between per-pixel and per-vertex lighting\n");
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 200, 200 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Redisplay );
-   if (Anim)
-      glutIdleFunc(Idle);
-   Init();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/arbocclude.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/arbocclude.c
deleted file mode 100644
index ddbb1f1b7..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/arbocclude.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * GL_ARB_occlusion_query demo
- *
- * Brian Paul
- * 12 June 2003
- *
- * Copyright (C) 2003  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.
- */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#define GL_GLEXT_PROTOTYPES
-#include <GL/glut.h>
-
-#define TEST_DISPLAY_LISTS 0
-
-static GLboolean Anim = GL_TRUE;
-static GLfloat Xpos = 0;
-static GLuint OccQuery;
-
-
-
-static void
-PrintString(const char *s)
-{
-   while (*s) {
-      glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
-      s++;
-   }
-}
-
-
-
-static void Idle(void)
-{
-   static int lastTime = 0;
-   static int sign = +1;
-   int time = glutGet(GLUT_ELAPSED_TIME);
-   float step;
-
-   if (lastTime == 0)
-      lastTime = time;
-   else if (time - lastTime < 20)  /* 50Hz update */
-      return;
-
-   step = (time - lastTime) / 1000.0 * sign;
-   lastTime = time;
-
-   Xpos += step;
-
-   if (Xpos > 2.5) {
-      Xpos = 2.5;
-      sign = -1;
-   }
-   else if (Xpos < -2.5) {
-      Xpos = -2.5;
-      sign = +1;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Display( void )
-{
-   GLuint passed;
-   GLint ready;
-   char s[100];
-
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -15.0 );
-
-   /* draw the occluding polygons */
-   glColor3f(0, 0.6, 0.8);
-   glBegin(GL_QUADS);
-   glVertex2f(-1.6, -1.5);
-   glVertex2f(-0.4, -1.5);
-   glVertex2f(-0.4,  1.5);
-   glVertex2f(-1.6,  1.5);
-
-   glVertex2f( 0.4, -1.5);
-   glVertex2f( 1.6, -1.5);
-   glVertex2f( 1.6,  1.5);
-   glVertex2f( 0.4,  1.5);
-   glEnd();
-
-   /* draw the test polygon with occlusion testing */
-   glPushMatrix();
-   glTranslatef(Xpos, 0, -0.5);
-   glScalef(0.3, 0.3, 1.0);
-   glRotatef(-90.0 * Xpos, 0, 0, 1);
-
-#if defined(GL_ARB_occlusion_query)
-#if TEST_DISPLAY_LISTS
-   glNewList(10, GL_COMPILE);
-   glBeginQueryARB(GL_SAMPLES_PASSED_ARB, OccQuery);
-   glEndList();
-   glCallList(10);
-#else
-   glBeginQueryARB(GL_SAMPLES_PASSED_ARB, OccQuery);
-#endif
-
-   glColorMask(0, 0, 0, 0);
-   glDepthMask(GL_FALSE);
-
-   glBegin(GL_POLYGON);
-   glVertex3f(-1, -1, 0);
-   glVertex3f( 1, -1, 0);
-   glVertex3f( 1,  1, 0);
-   glVertex3f(-1,  1, 0);
-   glEnd();
-
-#if TEST_DISPLAY_LISTS
-   glNewList(11, GL_COMPILE);
-   glEndQueryARB(GL_SAMPLES_PASSED_ARB);
-   glEndList();
-   glCallList(11);
-#else
-   glEndQueryARB(GL_SAMPLES_PASSED_ARB);
-#endif
-
-   do {
-      /* do useful work here, if any */
-      glGetQueryObjectivARB(OccQuery, GL_QUERY_RESULT_AVAILABLE_ARB, &ready);
-   } while (!ready);
-   glGetQueryObjectuivARB(OccQuery, GL_QUERY_RESULT_ARB, &passed);
-
-   /* turn off occlusion testing */
-   glColorMask(1, 1, 1, 1);
-   glDepthMask(GL_TRUE);
-#endif /* GL_ARB_occlusion_query */
-
-   /* draw the orange rect, so we can see what's going on */
-   glColor3f(0.8, 0.5, 0);
-   glBegin(GL_POLYGON);
-   glVertex3f(-1, -1, 0);
-   glVertex3f( 1, -1, 0);
-   glVertex3f( 1,  1, 0);
-   glVertex3f(-1,  1, 0);
-   glEnd();
-
-   glPopMatrix();
-
-
-   /* Print result message */
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho( -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-
-   glColor3f(1, 1, 1);
-#if defined(GL_ARB_occlusion_query)
-   sprintf(s, " %4d Fragments Visible", passed);
-   glRasterPos3f(-0.50, -0.7, 0);
-   PrintString(s);
-   if (!passed) {
-      glRasterPos3f(-0.25, -0.8, 0);
-      PrintString("Fully Occluded");
-   }
-#else
-   glRasterPos3f(-0.25, -0.8, 0);
-   PrintString("GL_ARB_occlusion_query not available at compile time");
-#endif /* GL_ARB_occlusion_query */
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 27:
-         exit(0);
-         break;
-      case ' ':
-         Anim = !Anim;
-         if (Anim)
-            glutIdleFunc(Idle);
-         else
-            glutIdleFunc(NULL);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   const GLfloat step = 0.1;
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_LEFT:
-         Xpos -= step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Xpos += step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
-   const char *ext = (const char *) glGetString(GL_EXTENSIONS);
-   GLint bits;
-
-   if (!strstr(ext, "GL_ARB_occlusion_query")) {
-      printf("Sorry, this demo requires the GL_ARB_occlusion_query extension\n");
-      exit(-1);
-   }
-
-#if defined(GL_ARB_occlusion_query)
-   glGetQueryivARB(GL_SAMPLES_PASSED_ARB, GL_QUERY_COUNTER_BITS_ARB, &bits);
-   if (!bits) {
-      printf("Hmmm, GL_QUERY_COUNTER_BITS_ARB is zero!\n");
-      exit(-1);
-   }
-#endif /* GL_ARB_occlusion_query */
-
-   glGetIntegerv(GL_DEPTH_BITS, &bits);
-   printf("Depthbits: %d\n", bits);
-
-#if defined(GL_ARB_occlusion_query)
-   glGenQueriesARB(1, &OccQuery);
-   assert(OccQuery > 0);
-#endif /* GL_ARB_occlusion_query */
-
-   glEnable(GL_DEPTH_TEST);
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 400, 400 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutIdleFunc( Idle );
-   glutDisplayFunc( Display );
-   Init();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/bounce.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/bounce.c
deleted file mode 100644
index 2f3fa9fd9..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/bounce.c
+++ /dev/null
@@ -1,228 +0,0 @@
-
-/*
- * Bouncing ball demo.
- *
- * This program is in the public domain
- *
- * Brian Paul
- *
- * Conversion to GLUT by Mark J. Kilgard
- */
-
-
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-#include <GL/glut.h>
-#include <sys/time.h>
-#include <time.h>
-
-#define COS(X)   cos( (X) * 3.14159/180.0 )
-#define SIN(X)   sin( (X) * 3.14159/180.0 )
-
-#define RED 1
-#define WHITE 2
-#define CYAN 3
-
-GLboolean IndexMode = GL_FALSE;
-GLuint Ball;
-GLenum Mode;
-GLfloat Zrot = 0.0, Zstep = 180.0;
-GLfloat Xpos = 0.0, Ypos = 1.0;
-GLfloat Xvel = 2.0, Yvel = 0.0;
-GLfloat Xmin = -4.0, Xmax = 4.0;
-GLfloat Ymin = -3.8, Ymax = 4.0;
-GLfloat G = -9.8;
-
-static GLuint 
-make_ball(void)
-{
-  GLuint list;
-  GLfloat a, b;
-  GLfloat da = 18.0, db = 18.0;
-  GLfloat radius = 1.0;
-  GLuint color;
-  GLfloat x, y, z;
-
-  list = glGenLists(1);
-
-  glNewList(list, GL_COMPILE);
-
-  color = 0;
-  for (a = -90.0; a + da <= 90.0; a += da) {
-
-    glBegin(GL_QUAD_STRIP);
-    for (b = 0.0; b <= 360.0; b += db) {
-
-      if (color) {
-	glIndexi(RED);
-        glColor3f(1, 0, 0);
-      } else {
-	glIndexi(WHITE);
-        glColor3f(1, 1, 1);
-      }
-
-      x = radius * COS(b) * COS(a);
-      y = radius * SIN(b) * COS(a);
-      z = radius * SIN(a);
-      glVertex3f(x, y, z);
-
-      x = radius * COS(b) * COS(a + da);
-      y = radius * SIN(b) * COS(a + da);
-      z = radius * SIN(a + da);
-      glVertex3f(x, y, z);
-
-      color = 1 - color;
-    }
-    glEnd();
-
-  }
-
-  glEndList();
-
-  return list;
-}
-
-static void 
-reshape(int width, int height)
-{
-  float aspect = (float) width / (float) height;
-  glViewport(0, 0, (GLint) width, (GLint) height);
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glOrtho(-6.0 * aspect, 6.0 * aspect, -6.0, 6.0, -6.0, 6.0);
-  glMatrixMode(GL_MODELVIEW);
-}
-
-/* ARGSUSED1 */
-static void
-key(unsigned char k, int x, int y)
-{
-  switch (k) {
-  case 27:  /* Escape */
-    exit(0);
-  }
-}
-
-static void 
-draw(void)
-{
-  GLint i;
-
-  glClear(GL_COLOR_BUFFER_BIT);
-
-  glIndexi(CYAN);
-  glColor3f(0, 1, 1);
-  glBegin(GL_LINES);
-  for (i = -5; i <= 5; i++) {
-    glVertex2i(i, -5);
-    glVertex2i(i, 5);
-  }
-  for (i = -5; i <= 5; i++) {
-    glVertex2i(-5, i);
-    glVertex2i(5, i);
-  }
-  for (i = -5; i <= 5; i++) {
-    glVertex2i(i, -5);
-    glVertex2f(i * 1.15, -5.9);
-  }
-  glVertex2f(-5.3, -5.35);
-  glVertex2f(5.3, -5.35);
-  glVertex2f(-5.75, -5.9);
-  glVertex2f(5.75, -5.9);
-  glEnd();
-
-  glPushMatrix();
-  glTranslatef(Xpos, Ypos, 0.0);
-  glScalef(2.0, 2.0, 2.0);
-  glRotatef(8.0, 0.0, 0.0, 1.0);
-  glRotatef(90.0, 1.0, 0.0, 0.0);
-  glRotatef(Zrot, 0.0, 0.0, 1.0);
-
-  glCallList(Ball);
-
-  glPopMatrix();
-
-  glFlush();
-  glutSwapBuffers();
-}
-
-static void 
-idle(void)
-{
-  static float vel0 = -100.0;
-  static double t0 = -1.;
-  double t, dt;
-  t = glutGet(GLUT_ELAPSED_TIME) / 1000.;
-  if (t0 < 0.)
-     t0 = t;
-  dt = t - t0;
-  t0 = t;
-
-  Zrot += Zstep*dt;
-
-  Xpos += Xvel*dt;
-  if (Xpos >= Xmax) {
-    Xpos = Xmax;
-    Xvel = -Xvel;
-    Zstep = -Zstep;
-  }
-  if (Xpos <= Xmin) {
-    Xpos = Xmin;
-    Xvel = -Xvel;
-    Zstep = -Zstep;
-  }
-  Ypos += Yvel*dt;
-  Yvel += G*dt;
-  if (Ypos < Ymin) {
-    Ypos = Ymin;
-    if (vel0 == -100.0)
-      vel0 = fabs(Yvel);
-    Yvel = vel0;
-  }
-  glutPostRedisplay();
-}
-
-static void 
-visible(int vis)
-{
-  if (vis == GLUT_VISIBLE)
-    glutIdleFunc(idle);
-  else
-    glutIdleFunc(NULL);
-}
-
-int main(int argc, char *argv[])
-{
-  glutInit(&argc, argv);
-  glutInitWindowPosition(0, 0);
-  glutInitWindowSize(600, 450);
-
-
-  IndexMode = argc > 1 && strcmp(argv[1], "-ci") == 0;
-  if (IndexMode)
-     glutInitDisplayMode(GLUT_INDEX | GLUT_DOUBLE);
-  else
-     glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
-
-  glutCreateWindow("Bounce");
-  Ball = make_ball();
-  glCullFace(GL_BACK);
-  glEnable(GL_CULL_FACE);
-  glDisable(GL_DITHER);
-  glShadeModel(GL_FLAT);
-
-  glutDisplayFunc(draw);
-  glutReshapeFunc(reshape);
-  glutVisibilityFunc(visible);
-  glutKeyboardFunc(key);
-
-  if (IndexMode) {
-    glutSetColor(RED, 1.0, 0.0, 0.0);
-    glutSetColor(WHITE, 1.0, 1.0, 1.0);
-    glutSetColor(CYAN, 0.0, 1.0, 1.0);
-  }
-
-  glutMainLoop();
-  return 0;             /* ANSI C requires main to return int. */
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/clearspd.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/clearspd.c
deleted file mode 100644
index 42953f667..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/clearspd.c
+++ /dev/null
@@ -1,218 +0,0 @@
-
-/*
- * Simple GLUT program to measure glClear() and glutSwapBuffers() speed.
- * Brian Paul  February 15, 1997  This file in public domain.
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <GL/glut.h>
-
-
-static float MinPeriod = 2.0;   /* 2 seconds */
-static int ColorMode = GLUT_RGB;
-static int Width = 400.0;
-static int Height = 400.0;
-static int Loops = 100;
-static float ClearColor = 0.0;
-static GLbitfield BufferMask = GL_COLOR_BUFFER_BIT;
-static GLboolean SwapFlag = GL_FALSE;
-
-
-
-static void Idle( void )
-{
-   glutPostRedisplay();
-}
-
-
-static void Display( void )
-{
-   double t0, t1;
-   double clearRate;
-   double pixelRate;
-   int i;
-
-   glClearColor( ClearColor, ClearColor, ClearColor, 0.0 );
-   ClearColor += 0.1;
-   if (ClearColor>1.0)
-      ClearColor = 0.0;
-
-   if (SwapFlag) {
-      t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
-      for (i=0;i<Loops;i++) {
-         glClear( BufferMask );
-         glutSwapBuffers();
-      }
-      glFinish();
-      t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
-   }
-   else {
-      t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
-      for (i=0;i<Loops;i++) {
-         glClear( BufferMask );
-      }
-      glFinish();
-      t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
-      glutSwapBuffers();
-   }
-
-   /* NOTE: If clearspd doesn't map it's window immediately on
-    * starting, swaps will be istantaneous, so this will send Loops
-    * towards infinity.  When a window is finally mapped, it may be
-    * minutes before the first call to glutSwapBuffers, making it look
-    * like there's a driver bug.
-    */
-   if (t1-t0 < MinPeriod) {
-      /* Next time do more clears to get longer elapsed time */
-      Loops *= 2;
-      return;
-   }
-
-   clearRate = Loops / (t1-t0);
-   pixelRate = clearRate * Width * Height;
-   if (SwapFlag) {
-      printf("Rate: %d clears+swaps in %gs = %g clears+swaps/s   %g pixels/s\n",
-             Loops, t1-t0, clearRate, pixelRate );
-   }
-   else {
-      printf("Rate: %d clears in %gs = %g clears/s   %g pixels/s\n",
-             Loops, t1-t0, clearRate, pixelRate);
-   }
-}
-
-
-static void Reshape( int width, int height )
-{
-   Width = width;
-   Height = height;
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho(0.0, width, 0.0, height, -1.0, 1.0);
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( int argc, char *argv[] )
-{
-   int i;
-   for (i=1; i<argc; i++) {
-      if (strcmp(argv[i],"+rgb")==0)
-         ColorMode = GLUT_RGB;
-      else if (strcmp(argv[i],"+ci")==0)
-         ColorMode = GLUT_INDEX;
-      else if (strcmp(argv[i],"-color")==0)
-         BufferMask = 0;
-      else if (strcmp(argv[i],"+depth")==0)
-         BufferMask |= GL_DEPTH_BUFFER_BIT;
-      else if (strcmp(argv[i],"+alpha")==0)
-         ColorMode = GLUT_RGB | GLUT_ALPHA;
-      else if (strcmp(argv[i],"+stencil")==0)
-         BufferMask |= GL_STENCIL_BUFFER_BIT;
-      else if (strcmp(argv[i],"+accum")==0)
-         BufferMask |= GL_ACCUM_BUFFER_BIT;
-      else if (strcmp(argv[i],"-width")==0) {
-         Width = atoi(argv[i+1]);
-         i++;
-      }
-      else if (strcmp(argv[i],"-height")==0) {
-         Height = atoi(argv[i+1]);
-         i++;
-      }
-      else if (strcmp(argv[i],"+swap")==0) {
-         SwapFlag = GL_TRUE;
-      }
-      else if (strcmp(argv[i],"-swap")==0) {
-         SwapFlag = GL_FALSE;
-      }
-      else
-         printf("Unknown option: %s\n", argv[i]);
-   }
-
-   if (ColorMode & GLUT_ALPHA)
-      printf("Mode:  RGB + Alpha\n");
-   else if (ColorMode==GLUT_RGB)
-      printf("Mode:  RGB\n");
-   else
-      printf("Mode:  Color Index\n");
-   printf("SwapBuffers: %s\n", SwapFlag ? "yes" : "no" );
-   printf("Size: %d x %d\n", Width, Height);
-   printf("Buffers: ");
-   if (BufferMask & GL_COLOR_BUFFER_BIT)  printf("color ");
-   if (BufferMask & GL_DEPTH_BUFFER_BIT)  printf("depth ");
-   if (BufferMask & GL_STENCIL_BUFFER_BIT)  printf("stencil ");
-   if (BufferMask & GL_ACCUM_BUFFER_BIT)  printf("accum ");
-   printf("\n");
-}
-
-
-static void Help( const char *program )
-{
-   printf("%s options:\n", program);
-   printf("  +rgb       RGB mode\n");
-   printf("  +ci        color index mode\n");
-   printf("  -color     don't clear color buffer\n");
-   printf("  +alpha     clear alpha buffer\n");
-   printf("  +depth     clear depth buffer\n");
-   printf("  +stencil   clear stencil buffer\n");
-   printf("  +accum     clear accum buffer\n");
-   printf("  +swap      also do SwapBuffers\n");
-   printf("  -swap      don't do SwapBuffers\n");
-}
-
-
-int main( int argc, char *argv[] )
-{
-   GLint mode;
-
-   printf("For options:  %s -help\n", argv[0]);
-
-   Init( argc, argv );
-
-   glutInit( &argc, argv );
-   glutInitWindowSize( (int) Width, (int) Height );
-   glutInitWindowPosition( 0, 0 );
-
-   mode = ColorMode | GLUT_DOUBLE;
-   if (BufferMask & GL_STENCIL_BUFFER_BIT)
-      mode |= GLUT_STENCIL;
-   if (BufferMask & GL_ACCUM_BUFFER_BIT)
-      mode |= GLUT_ACCUM;
-   if (BufferMask & GL_DEPTH_BUFFER_BIT)
-      mode |= GLUT_DEPTH;
-         
-   glutInitDisplayMode(mode);
-
-   glutCreateWindow( argv[0] );
-
-   if (argc==2 && strcmp(argv[1],"-help")==0) {
-      Help(argv[0]);
-      return 0;
-   }
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutDisplayFunc( Display );
-   glutIdleFunc( Idle );
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/cubemap.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/cubemap.c
deleted file mode 100644
index 0a59b9898..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/cubemap.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- * GL_ARB_texture_cube_map demo
- *
- * Brian Paul
- * May 2000
- *
- *
- * Copyright (C) 2000  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.
- */
-
-
-/*
- * This is a pretty minimalistic demo for now.  Eventually, use some
- * interesting cube map textures and 3D objects.
- * For now, we use 6 checkerboard "walls" and a sphere (good for
- * verification purposes).
- */
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "GL/glut.h"
-#include "readtex.h"
-
-
-static GLfloat Xrot = 0, Yrot = 0;
-static GLfloat EyeDist = 10;
-static GLboolean use_vertex_arrays = GL_FALSE;
-static GLboolean anim = GL_TRUE;
-
-#define eps1 0.99
-#define br   20.0  /* box radius */
-
-static const GLfloat tex_coords[] = {
-   /* +X side */
-   1.0, -eps1, -eps1,
-   1.0, -eps1,  eps1,
-   1.0,  eps1,  eps1,
-   1.0,  eps1, -eps1,
-
-   /* -X side */
-   -1.0,  eps1, -eps1,
-   -1.0,  eps1,  eps1,
-   -1.0, -eps1,  eps1,
-   -1.0, -eps1, -eps1,
-
-   /* +Y side */
-   -eps1, 1.0, -eps1,
-   -eps1, 1.0,  eps1,
-    eps1, 1.0,  eps1,
-    eps1, 1.0, -eps1,
-
-   /* -Y side */
-   -eps1, -1.0, -eps1,
-   -eps1, -1.0,  eps1,
-    eps1, -1.0,  eps1,
-    eps1, -1.0, -eps1,
-
-   /* +Z side */
-    eps1, -eps1, 1.0,
-   -eps1, -eps1, 1.0,
-   -eps1,  eps1, 1.0,
-    eps1,  eps1, 1.0,
-
-   /* -Z side */
-    eps1,  eps1, -1.0,
-   -eps1,  eps1, -1.0,
-   -eps1, -eps1, -1.0,
-    eps1, -eps1, -1.0,
-};
-
-static const GLfloat vtx_coords[] = {
-   /* +X side */
-   br, -br, -br,
-   br, -br,  br,
-   br,  br,  br,
-   br,  br, -br,
-
-   /* -X side */
-   -br,  br, -br,
-   -br,  br,  br,
-   -br, -br,  br,
-   -br, -br, -br,
-
-   /* +Y side */
-   -br,  br, -br,
-   -br,  br,  br,
-    br,  br,  br,
-    br,  br, -br,
-
-   /* -Y side */
-   -br, -br, -br,
-   -br, -br,  br,
-    br, -br,  br,
-    br, -br, -br,
-
-   /* +Z side */
-    br, -br, br,
-   -br, -br, br,
-   -br,  br, br,
-    br,  br, br,
-
-   /* -Z side */
-    br,  br, -br,
-   -br,  br, -br,
-   -br, -br, -br,
-    br, -br, -br,
-};
-
-static void draw_skybox( void )
-{
-   if ( use_vertex_arrays ) {
-      glTexCoordPointer( 3, GL_FLOAT, 0, tex_coords );
-      glVertexPointer(   3, GL_FLOAT, 0, vtx_coords );
-
-      glEnableClientState( GL_TEXTURE_COORD_ARRAY );
-      glEnableClientState( GL_VERTEX_ARRAY );
-
-      glDrawArrays( GL_QUADS, 0, 24 );
-
-      glDisableClientState( GL_TEXTURE_COORD_ARRAY );
-      glDisableClientState( GL_VERTEX_ARRAY );
-   }
-   else {
-      unsigned   i;
-
-      glBegin(GL_QUADS);
-      for ( i = 0 ; i < 24 ; i++ ) {
-	 glTexCoord3fv( & tex_coords[ i * 3 ] );
-	 glVertex3fv  ( & vtx_coords[ i * 3 ] );
-      }
-      glEnd();
-   }
-}
-
-
-static void draw( void )
-{
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-   glPushMatrix(); /*MODELVIEW*/
-      glTranslatef( 0.0, 0.0, -EyeDist );
-
-      /* skybox */
-      glDisable(GL_TEXTURE_GEN_S);
-      glDisable(GL_TEXTURE_GEN_T);
-      glDisable(GL_TEXTURE_GEN_R);
-
-      glMatrixMode(GL_MODELVIEW);
-      glPushMatrix();
-         glRotatef(Xrot, 1, 0, 0);
-         glRotatef(Yrot, 0, 1, 0);
-         draw_skybox();
-      glPopMatrix();
-
-      /* sphere */
-      glMatrixMode(GL_TEXTURE);
-      glLoadIdentity();
-      glRotatef(-Yrot, 0, 1, 0);
-      glRotatef(-Xrot, 1, 0, 0);
-
-      glEnable(GL_TEXTURE_GEN_S);
-      glEnable(GL_TEXTURE_GEN_T);
-      glEnable(GL_TEXTURE_GEN_R);
-      glutSolidSphere(2.0, 20, 20);
-
-      glLoadIdentity(); /* texture */
-
-      glMatrixMode(GL_MODELVIEW);
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-static void idle(void)
-{
-   GLfloat t = 0.05 * glutGet(GLUT_ELAPSED_TIME);
-   Yrot = t;
-   glutPostRedisplay();
-}
-
-
-static void set_mode(GLuint mode)
-{
-   if (mode == 0) {
-      glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP_ARB);
-      glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP_ARB);
-      glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP_ARB);
-      printf("GL_REFLECTION_MAP_ARB mode\n");
-   }
-   else if (mode == 1) {
-      glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_NORMAL_MAP_ARB);
-      glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_NORMAL_MAP_ARB);
-      glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_NORMAL_MAP_ARB);
-      printf("GL_NORMAL_MAP_ARB mode\n");
-   }
-}
-
-
-static void key(unsigned char k, int x, int y)
-{
-   static GLuint mode = 0;
-   (void) x;
-   (void) y;
-   switch (k) {
-      case ' ':
-         anim = !anim;
-         if (anim)
-            glutIdleFunc(idle);
-         else
-            glutIdleFunc(NULL);
-         break;
-      case 'm':
-         mode = !mode;
-         set_mode(mode);
-         break;
-      case 'v':
-         use_vertex_arrays = ! use_vertex_arrays;
-         printf( "Vertex arrays are %sabled\n",
-		 (use_vertex_arrays) ? "en" : "dis" );
-         break;
-      case 'z':
-         EyeDist -= 0.5;
-         if (EyeDist < 6.0)
-            EyeDist = 6.0;
-         break;
-      case 'Z':
-         EyeDist += 0.5;
-         if (EyeDist > 90.0)
-            EyeDist = 90;
-         break;
-      case 27:
-         exit(0);
-   }
-   glutPostRedisplay();
-}
-
-
-static void specialkey(int key, int x, int y)
-{
-   GLfloat step = 5;
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         Xrot += step;
-         break;
-      case GLUT_KEY_DOWN:
-         Xrot -= step;
-         break;
-      case GLUT_KEY_LEFT:
-         Yrot -= step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Yrot += step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-/* new window size or exposure */
-static void reshape(int width, int height)
-{
-   GLfloat ar = (float) width / (float) height;
-   glViewport(0, 0, (GLint)width, (GLint)height);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glFrustum( -2.0*ar, 2.0*ar, -2.0, 2.0, 4.0, 100.0 );
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-}
-
-
-static void init_checkers( void )
-{
-#define CUBE_TEX_SIZE 64
-   GLubyte image[CUBE_TEX_SIZE][CUBE_TEX_SIZE][3];
-   static const GLubyte colors[6][3] = {
-      { 255,   0,   0 },	/* face 0 - red */
-      {   0, 255, 255 },	/* face 1 - cyan */
-      {   0, 255,   0 },	/* face 2 - green */
-      { 255,   0, 255 },	/* face 3 - purple */
-      {   0,   0, 255 },	/* face 4 - blue */
-      { 255, 255,   0 }		/* face 5 - yellow */
-   };
-   static const GLenum targets[6] = {
-      GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
-      GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
-      GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
-      GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
-      GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
-      GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
-   };
-
-   GLint i, j, f;
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-   /* make colored checkerboard cube faces */
-   for (f = 0; f < 6; f++) {
-      for (i = 0; i < CUBE_TEX_SIZE; i++) {
-         for (j = 0; j < CUBE_TEX_SIZE; j++) {
-            if ((i/4 + j/4) & 1) {
-               image[i][j][0] = colors[f][0];
-               image[i][j][1] = colors[f][1];
-               image[i][j][2] = colors[f][2];
-            }
-            else {
-               image[i][j][0] = 255;
-               image[i][j][1] = 255;
-               image[i][j][2] = 255;
-            }
-         }
-      }
-
-      glTexImage2D(targets[f], 0, GL_RGB, CUBE_TEX_SIZE, CUBE_TEX_SIZE, 0,
-                   GL_RGB, GL_UNSIGNED_BYTE, image);
-   }
-}
-
-
-static void load(GLenum target, const char *filename,
-                 GLboolean flipTB, GLboolean flipLR)
-{
-   GLint w, h;
-   GLenum format;
-   GLubyte *img = LoadRGBImage( filename, &w, &h, &format );
-   if (!img) {
-      printf("Error: couldn't load texture image %s\n", filename);
-      exit(1);
-   }
-   assert(format == GL_RGB);
-
-   /* <sigh> the way the texture cube mapping works, we have to flip
-    * images to make things look right.
-    */
-   if (flipTB) {
-      const int stride = 3 * w;
-      GLubyte temp[3*1024];
-      int i;
-      for (i = 0; i < h / 2; i++) {
-         memcpy(temp, img + i * stride, stride);
-         memcpy(img + i * stride, img + (h - i - 1) * stride, stride);
-         memcpy(img + (h - i - 1) * stride, temp, stride);
-      }
-   }
-   if (flipLR) {
-      const int stride = 3 * w;
-      GLubyte temp[3];
-      GLubyte *row;
-      int i, j;
-      for (i = 0; i < h; i++) {
-         row = img + i * stride;
-         for (j = 0; j < w / 2; j++) {
-            int k = w - j - 1;
-            temp[0] = row[j*3+0];
-            temp[1] = row[j*3+1];
-            temp[2] = row[j*3+2];
-            row[j*3+0] = row[k*3+0];
-            row[j*3+1] = row[k*3+1];
-            row[j*3+2] = row[k*3+2];
-            row[k*3+0] = temp[0];
-            row[k*3+1] = temp[1];
-            row[k*3+2] = temp[2];
-         }
-      }
-   }
-
-   gluBuild2DMipmaps(target, GL_RGB, w, h, format, GL_UNSIGNED_BYTE, img);
-   free(img);
-}
-
-
-static void load_envmaps(void)
-{
-   load(GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB, "right.rgb", GL_TRUE, GL_FALSE);
-   load(GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB, "left.rgb", GL_TRUE, GL_FALSE);
-   load(GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB, "top.rgb", GL_FALSE, GL_TRUE);
-   load(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB, "bottom.rgb", GL_FALSE, GL_TRUE);
-   load(GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB, "front.rgb", GL_TRUE, GL_FALSE);
-   load(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB, "back.rgb", GL_TRUE, GL_FALSE);
-}
-
-
-static void init( GLboolean useImageFiles )
-{
-   GLenum filter;
-
-   /* check for extension */
-   {
-      char *exten = (char *) glGetString(GL_EXTENSIONS);
-      if (!strstr(exten, "GL_ARB_texture_cube_map")) {
-         printf("Sorry, this demo requires GL_ARB_texture_cube_map\n");
-         exit(0);
-      }
-   }
-   printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
-
-   if (useImageFiles) {
-      load_envmaps();
-      filter = GL_LINEAR;
-   }
-   else {
-      init_checkers();
-      filter = GL_NEAREST;
-   }
-
-   glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MIN_FILTER, filter);
-   glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MAG_FILTER, filter);
-   glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-   glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-
-   glEnable(GL_TEXTURE_CUBE_MAP_ARB);
-   glEnable(GL_DEPTH_TEST);
-
-   glClearColor(.3, .3, .3, 0);
-   glColor3f( 1.0, 1.0, 1.0 );
-
-   set_mode(0);
-}
-
-
-static void usage(void)
-{
-   printf("keys:\n");
-   printf("  SPACE - toggle animation\n");
-   printf("  CURSOR KEYS - rotation\n");
-   printf("  m - toggle texgen reflection mode\n");
-   printf("  z/Z - change viewing distance\n");
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(600, 500);
-   glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
-   glutCreateWindow("Texture Cube Mapping");
-
-   if (argc > 1 && strcmp(argv[1] , "-i") == 0)
-      init( 1 );
-   else
-      init( 0 );
-   glutReshapeFunc( reshape );
-   glutKeyboardFunc( key );
-   glutSpecialFunc( specialkey );
-   glutDisplayFunc( draw );
-   if (anim)
-      glutIdleFunc(idle);
-   usage();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/descrip.mms b/nx-X11/extras/Mesa_6.4.1/progs/demos/descrip.mms
deleted file mode 100644
index cc9350ce6..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/descrip.mms
+++ /dev/null
@@ -1,90 +0,0 @@
-# Makefile for GLUT-based demo programs for VMS
-# contributed by Jouk Jansen  joukj@hrem.stm.tudelft.nl
-# Last update : 20 May 2005
-
-.first
-	define gl [--.include.gl]
-
-.include [--]mms-config.
-
-##### MACROS #####
-
-INCDIR = ([--.include],[-.util])
-CFLAGS = /include=$(INCDIR)/prefix=all/name=(as_is,short)
-
-.ifdef SHARE
-GL_LIBS = $(XLIBS)
-LIB_DEP = [--.lib]$(GL_SHAR) [--.lib]$(GLU_SHAR) [--.lib]$(GLUT_SHAR)
-.else
-GL_LIBS = [--.lib]libGLUT/l,libMesaGLU/l,libMesaGL/l,$(XLIBS)
-LIB_DEP = [--.lib]$(GL_LIB) [--.lib]$(GLU_LIB) [--.lib]$(GLUT_LIB)
-.endif
-
-
-PROGS = bounce.exe;,clearspd.exe;,drawpix.exe;,gamma.exe;,gears.exe;,\
-	glinfo.exe;,glutfx.exe;,isosurf.exe;,morph3d.exe;,\
-	paltex.exe;,pointblast.exe;,reflect.exe;,spectex.exe;,stex3d.exe;,\
-	tessdemo.exe;,texcyl.exe;,texobj.exe;,trispd.exe;,winpos.exe;
-
-
-##### RULES #####
-.obj.exe :
-	cxxlink $(MMS$TARGET_NAME),$(GL_LIBS)
-
-##### TARGETS #####
-default :
-	$(MMS)$(MMSQUALIFIERS) $(PROGS)
-
-clean :
-	delete *.obj;*
-
-realclean :
-	delete $(PROGS)
-	delete *.obj;*
-
-bounce.exe; : bounce.obj $(LIB_DEP)
-clearspd.exe; : clearspd.obj $(LIB_DEP)
-drawpix.exe; : drawpix.obj $(LIB_DEP) [-.util]readtex.obj
-	cxxlink $(MMS$TARGET_NAME),[-.util]readtex.obj,$(GL_LIBS)
-gamma.exe; : gamma.obj $(LIB_DEP)
-gears.exe; : gears.obj $(LIB_DEP)
-glinfo.exe; : glinfo.obj $(LIB_DEP)
-glutfx.exe; : glutfx.obj $(LIB_DEP)
-isosurf.exe; : isosurf.obj $(LIB_DEP) [-.util]readtex.obj
-	cxxlink $(MMS$TARGET_NAME),[-.util]readtex.obj,$(GL_LIBS)
-morph3d.exe; : morph3d.obj $(LIB_DEP)
-paltex.exe; : paltex.obj $(LIB_DEP)
-pointblast.exe; : pointblast.obj $(LIB_DEP)
-reflect.exe; : reflect.obj [-.util]readtex.obj [-.util]showbuffer.obj\
-	$(LIB_DEP)
-	cxxlink $(MMS$TARGET_NAME),[-.util]readtex,showbuffer,$(GL_LIBS)
-spectex.exe; : spectex.obj $(LIB_DEP)
-stex3d.exe; : stex3d.obj $(LIB_DEP)
-tessdemo.exe; : tessdemo.obj $(LIB_DEP)
-texcyl.exe; : texcyl.obj [-.util]readtex.obj $(LIB_DEP)
-	cxxlink $(MMS$TARGET_NAME),[-.util]readtex.obj,$(GL_LIBS)
-texobj.exe; : texobj.obj $(LIB_DEP)
-trispd.exe; : trispd.obj $(LIB_DEP)
-winpos.exe; : winpos.obj [-.util]readtex.obj $(LIB_DEP)
-	cxxlink $(MMS$TARGET_NAME),[-.util]readtex.obj,$(GL_LIBS)
-
-
-bounce.obj : bounce.c
-clearspd.obj : clearspd.c
-drawpix.obj : drawpix.c
-gamma.obj : gamma.c
-gears.obj : gears.c
-glinfo.obj : glinfo.c
-glutfx.obj : glutfx.c
-isosurf.obj : isosurf.c
-morph3d.obj : morph3d.c
-paltex.obj : paltex.c
-pointblast.obj : pointblast.c
-reflect.obj : reflect.c
-spectex.obj : spectex.c
-stex3d.obj : stex3d.c
-tessdemo.obj : tessdemo.c
-texcyl.obj : texcyl.c
-texobj.obj : texobj.c
-trispd.obj : trispd.c
-winpos.obj : winpos.c
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/drawpix.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/drawpix.c
deleted file mode 100644
index d2f574867..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/drawpix.c
+++ /dev/null
@@ -1,358 +0,0 @@
-
-/*
- * glDrawPixels demo/test/benchmark
- * 
- * Brian Paul   September 25, 1997  This file is in the public domain.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <GL/glut.h>
-
-#include "readtex.h"
-
-#define IMAGE_FILE "../images/girl.rgb"
-
-static int ImgWidth, ImgHeight;
-static GLenum ImgFormat;
-static GLubyte *Image = NULL;
-
-static int Xpos, Ypos;
-static int SkipPixels, SkipRows;
-static int DrawWidth, DrawHeight;
-static int Scissor = 0;
-static int Fog = 0;
-static GLfloat Zpos = -1.0;
-static float Xzoom, Yzoom;
-static GLboolean DrawFront = GL_FALSE;
-static GLboolean Dither = GL_TRUE;
-
-
-static void Reset( void )
-{
-   Xpos = Ypos = 20;
-   DrawWidth = ImgWidth;
-   DrawHeight = ImgHeight;
-   SkipPixels = SkipRows = 0;
-   Scissor = 0;
-   Fog = 0;
-   Zpos = -1.0;
-   Xzoom = Yzoom = 1.0;
-}
-
-
-static void Display( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT );
-
-#if 0
-   glRasterPos2i(Xpos, Ypos);
-#else
-   /* This allows negative raster positions: */
-   glRasterPos3f(0, 0, Zpos);
-   glBitmap(0, 0, 0, 0, Xpos, Ypos, NULL);
-#endif
-
-   glPixelStorei(GL_UNPACK_SKIP_PIXELS, SkipPixels);
-   glPixelStorei(GL_UNPACK_SKIP_ROWS, SkipRows);
-
-   glPixelZoom( Xzoom, Yzoom );
-
-   if (Scissor)
-      glEnable(GL_SCISSOR_TEST);
-
-   if (Fog)
-      glEnable(GL_FOG);
-
-   glDrawPixels(DrawWidth, DrawHeight, ImgFormat, GL_UNSIGNED_BYTE, Image);
-
-   glDisable(GL_SCISSOR_TEST);
-   glDisable(GL_FOG);
-
-   if (DrawFront)
-      glFinish();
-   else
-      glutSwapBuffers();
-}
-
-
-static void Benchmark( void )
-{
-   int startTime, endTime;
-   int draws = 500;
-   double seconds, pixelsPerSecond;
-
-   printf("Benchmarking...\n");
-   /* GL set-up */
-   glPixelStorei(GL_UNPACK_SKIP_PIXELS, SkipPixels);
-   glPixelStorei(GL_UNPACK_SKIP_ROWS, SkipRows);
-   glPixelZoom( Xzoom, Yzoom );
-   if (Scissor)
-      glEnable(GL_SCISSOR_TEST);
-   if (Fog)
-      glEnable(GL_FOG);
-
-   if (DrawFront)
-      glDrawBuffer(GL_FRONT);
-   else
-      glDrawBuffer(GL_BACK);
-
-   /* Run timing test */
-   draws = 0;
-   startTime = glutGet(GLUT_ELAPSED_TIME);
-   do {
-      glDrawPixels(DrawWidth, DrawHeight, ImgFormat, GL_UNSIGNED_BYTE, Image);
-      draws++;
-      endTime = glutGet(GLUT_ELAPSED_TIME);
-   } while (endTime - startTime < 4000);   /* 4 seconds */
-
-   /* GL clean-up */
-   glDisable(GL_SCISSOR_TEST);
-   glDisable(GL_FOG);
-
-   /* Results */
-   seconds = (double) (endTime - startTime) / 1000.0;
-   pixelsPerSecond = draws * DrawWidth * DrawHeight / seconds;
-   printf("Result:  %d draws in %f seconds = %f pixels/sec\n",
-          draws, seconds, pixelsPerSecond);
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho( 0.0, width, 0.0, height, 0.0, 2.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-
-   glScissor(width/4, height/4, width/2, height/2);
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case ' ':
-         Reset();
-         break;
-      case 'd':
-         Dither = !Dither;
-         if (Dither)
-            glEnable(GL_DITHER);
-         else
-            glDisable(GL_DITHER);
-         break;
-      case 'w':
-         if (DrawWidth > 0)
-            DrawWidth--;
-         break;
-      case 'W':
-         DrawWidth++;
-         break;
-      case 'h':
-         if (DrawHeight > 0)
-            DrawHeight--;
-         break;
-      case 'H':
-         DrawHeight++;
-         break;
-      case 'p':
-         if (SkipPixels > 0)
-             SkipPixels--;
-         break;
-      case 'P':
-         SkipPixels++;
-         break;
-      case 'r':
-         if (SkipRows > 0)
-             SkipRows--;
-         break;
-      case 'R':
-         SkipRows++;
-         break;
-      case 's':
-         Scissor = !Scissor;
-         break;
-      case 'x':
-         Xzoom -= 0.1;
-         break;
-      case 'X':
-         Xzoom += 0.1;
-         break;
-      case 'y':
-         Yzoom -= 0.1;
-         break;
-      case 'Y':
-         Yzoom += 0.1;
-         break;
-      case 'z':
-         Zpos -= 0.1;
-         printf("RasterPos Z = %g\n", Zpos);
-         break;
-      case 'Z':
-         Zpos += 0.1;
-         printf("RasterPos Z = %g\n", Zpos);
-         break;
-      case 'b':
-         Benchmark();
-         break;
-      case 'F':
-         Fog = !Fog;
-         printf("Fog %d\n", Fog);
-         break;
-      case 'f':
-         DrawFront = !DrawFront;
-         if (DrawFront)
-            glDrawBuffer(GL_FRONT);
-         else
-            glDrawBuffer(GL_BACK);
-         printf("glDrawBuffer(%s)\n", DrawFront ? "GL_FRONT" : "GL_BACK");
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         Ypos += 1;
-         break;
-      case GLUT_KEY_DOWN:
-         Ypos -= 1;
-         break;
-      case GLUT_KEY_LEFT:
-         Xpos -= 1;
-         break;
-      case GLUT_KEY_RIGHT:
-         Xpos += 1;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( GLboolean ciMode, const char *filename )
-{
-   static const GLfloat fogColor[4] = {0, 1, 0, 0};
-
-   printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
-   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
-
-   Image = LoadRGBImage( filename, &ImgWidth, &ImgHeight, &ImgFormat );
-   if (!Image) {
-      printf("Couldn't read %s\n", filename);
-      exit(0);
-   }
-
-   if (ciMode) {
-      /* Convert RGB image to grayscale */
-      GLubyte *indexImage = (GLubyte *) malloc( ImgWidth * ImgHeight );
-      GLint i;
-      for (i=0; i<ImgWidth*ImgHeight; i++) {
-         int gray = Image[i*3] + Image[i*3+1] + Image[i*3+2];
-         indexImage[i] = gray / 3;
-      }
-      free(Image);
-      Image = indexImage;
-      ImgFormat = GL_COLOR_INDEX;
-
-      for (i=0;i<255;i++) {
-         float g = i / 255.0;
-         glutSetColor(i, g, g, g);
-      }
-   }
-
-   printf("Loaded %d by %d image\n", ImgWidth, ImgHeight );
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glPixelStorei(GL_UNPACK_ROW_LENGTH, ImgWidth);
-
-   glFogi(GL_FOG_MODE, GL_LINEAR);
-   glFogf(GL_FOG_START, 0);
-   glFogf(GL_FOG_END, 2);
-   glFogfv(GL_FOG_COLOR, fogColor);
-
-   Reset();
-}
-
-
-static void Usage(void)
-{
-   printf("Keys:\n");
-   printf("       SPACE  Reset Parameters\n");
-   printf("     Up/Down  Move image up/down\n");
-   printf("  Left/Right  Move image left/right\n");
-   printf("           x  Decrease X-axis PixelZoom\n");
-   printf("           X  Increase X-axis PixelZoom\n");
-   printf("           y  Decrease Y-axis PixelZoom\n");
-   printf("           Y  Increase Y-axis PixelZoom\n");
-   printf("           w  Decrease glDrawPixels width*\n");
-   printf("           W  Increase glDrawPixels width*\n");
-   printf("           h  Decrease glDrawPixels height*\n");
-   printf("           H  Increase glDrawPixels height*\n");
-   printf("           p  Decrease GL_UNPACK_SKIP_PIXELS*\n");
-   printf("           P  Increase GL_UNPACK_SKIP_PIXELS*\n");
-   printf("           r  Decrease GL_UNPACK_SKIP_ROWS*\n");
-   printf("           R  Increase GL_UNPACK_SKIP_ROWS*\n");
-   printf("           s  Toggle GL_SCISSOR_TEST\n");
-   printf("           F  Toggle GL_FOG\n");
-   printf("           z  Decrease RasterPos Z\n");
-   printf("           Z  Increase RasterPos Z\n");
-   
-   printf("           f  Toggle front/back buffer drawing\n");
-   printf("           b  Benchmark test\n");
-   printf("         ESC  Exit\n");
-   printf("* Warning: no limits are imposed on these parameters so it's\n");
-   printf("  possible to cause a segfault if you go too far.\n");
-}
-
-
-int main( int argc, char *argv[] )
-{
-   GLboolean ciMode = GL_FALSE;
-   const char *filename = IMAGE_FILE;
-   int i = 1;
-
-   if (argc > i && strcmp(argv[i], "-ci")==0) {
-      ciMode = GL_TRUE;
-      i++;
-   }
-   if (argc > i) {
-      filename = argv[i];
-   }
-
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 500, 400 );
-
-   if (ciMode)
-      glutInitDisplayMode( GLUT_INDEX | GLUT_DOUBLE );
-   else
-      glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE);
-
-   glutCreateWindow(argv[0]);
-
-   Init(ciMode, filename);
-   Usage();
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/fire.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/fire.c
deleted file mode 100644
index dd70f6141..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/fire.c
+++ /dev/null
@@ -1,777 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <time.h>
-#include <string.h>
-
-#ifdef WIN32
-#include <windows.h>
-#include <mmsystem.h>
-#endif
-
-#include <GL/glut.h>
-#include "readtex.h"
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-#define vinit(a,i,j,k) {\
-  (a)[0]=i;\
-  (a)[1]=j;\
-  (a)[2]=k;\
-}
-
-#define vinit4(a,i,j,k,w) {\
-  (a)[0]=i;\
-  (a)[1]=j;\
-  (a)[2]=k;\
-  (a)[3]=w;\
-}
-
-
-#define vadds(a,dt,b) {\
-  (a)[0]+=(dt)*(b)[0];\
-  (a)[1]+=(dt)*(b)[1];\
-  (a)[2]+=(dt)*(b)[2];\
-}
-
-#define vequ(a,b) {\
-  (a)[0]=(b)[0];\
-  (a)[1]=(b)[1];\
-  (a)[2]=(b)[2];\
-}
-
-#define vinter(a,dt,b,c) {\
-  (a)[0]=(dt)*(b)[0]+(1.0-dt)*(c)[0];\
-  (a)[1]=(dt)*(b)[1]+(1.0-dt)*(c)[1];\
-  (a)[2]=(dt)*(b)[2]+(1.0-dt)*(c)[2];\
-}
-
-#define clamp(a)        ((a) < 0.0 ? 0.0 : ((a) < 1.0 ? (a) : 1.0))
-
-#define vclamp(v) {\
-  (v)[0]=clamp((v)[0]);\
-  (v)[1]=clamp((v)[1]);\
-  (v)[2]=clamp((v)[2]);\
-}
-
-static int WIDTH = 640;
-static int HEIGHT = 480;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-static GLint NiceFog = 1;
-
-#define DIMP 20.0
-#define DIMTP 16.0
-
-#define RIDCOL 0.4
-
-#define NUMTREE 50
-#define TREEINR 2.5
-#define TREEOUTR 8.0
-
-#define AGRAV -9.8
-
-typedef struct
-{
-   int age;
-   float p[3][3];
-   float v[3];
-   float c[3][4];
-}
-part;
-
-static float treepos[NUMTREE][3];
-
-static float black[3] = { 0.0, 0.0, 0.0 };
-static float blu[3] = { 1.0, 0.2, 0.0 };
-static float blu2[3] = { 1.0, 1.0, 0.0 };
-
-static float fogcolor[4] = { 1.0, 1.0, 1.0, 1.0 };
-
-static float q[4][3] = {
-   {-DIMP, 0.0, -DIMP},
-   {DIMP, 0.0, -DIMP},
-   {DIMP, 0.0, DIMP},
-   {-DIMP, 0.0, DIMP}
-};
-
-static float qt[4][2] = {
-   {-DIMTP, -DIMTP},
-   {DIMTP, -DIMTP},
-   {DIMTP, DIMTP},
-   {-DIMTP, DIMTP}
-};
-
-static int win = 0;
-
-static int np;
-static float eject_r, dt, maxage, eject_vy, eject_vl;
-static short shadows;
-static float ridtri;
-static int fog = 1;
-static int help = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-
-static part *p;
-
-static GLuint groundid;
-static GLuint treeid;
-
-static float obs[3] = { 2.0, 1.0, 0.0 };
-static float dir[3];
-static float v = 0.0;
-static float alpha = -84.0;
-static float beta = 90.0;
-
-static float
-vrnd(void)
-{
-   return (((float) rand()) / RAND_MAX);
-}
-
-static void
-setnewpart(part * p)
-{
-   float a, v[3], *c;
-
-   p->age = 0;
-
-   a = vrnd() * 3.14159265359 * 2.0;
-
-   vinit(v, sin(a) * eject_r * vrnd(), 0.15, cos(a) * eject_r * vrnd());
-   vinit(p->p[0], v[0] + vrnd() * ridtri, v[1] + vrnd() * ridtri,
-	 v[2] + vrnd() * ridtri);
-   vinit(p->p[1], v[0] + vrnd() * ridtri, v[1] + vrnd() * ridtri,
-	 v[2] + vrnd() * ridtri);
-   vinit(p->p[2], v[0] + vrnd() * ridtri, v[1] + vrnd() * ridtri,
-	 v[2] + vrnd() * ridtri);
-
-   vinit(p->v, v[0] * eject_vl / (eject_r / 2),
-	 vrnd() * eject_vy + eject_vy / 2, v[2] * eject_vl / (eject_r / 2));
-
-   c = blu;
-
-   vinit4(p->c[0], c[0] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
-	  c[1] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
-	  c[2] * ((1.0 - RIDCOL) + vrnd() * RIDCOL), 1.0);
-   vinit4(p->c[1], c[0] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
-	  c[1] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
-	  c[2] * ((1.0 - RIDCOL) + vrnd() * RIDCOL), 1.0);
-   vinit4(p->c[2], c[0] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
-	  c[1] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
-	  c[2] * ((1.0 - RIDCOL) + vrnd() * RIDCOL), 1.0);
-}
-
-static void
-setpart(part * p)
-{
-   float fact;
-
-   if (p->p[0][1] < 0.1) {
-      setnewpart(p);
-      return;
-   }
-
-   p->v[1] += AGRAV * dt;
-
-   vadds(p->p[0], dt, p->v);
-   vadds(p->p[1], dt, p->v);
-   vadds(p->p[2], dt, p->v);
-
-   p->age++;
-
-   if ((p->age) > maxage) {
-      vequ(p->c[0], blu2);
-      vequ(p->c[1], blu2);
-      vequ(p->c[2], blu2);
-   }
-   else {
-      fact = 1.0 / maxage;
-      vadds(p->c[0], fact, blu2);
-      vclamp(p->c[0]);
-      p->c[0][3] = fact * (maxage - p->age);
-
-      vadds(p->c[1], fact, blu2);
-      vclamp(p->c[1]);
-      p->c[1][3] = fact * (maxage - p->age);
-
-      vadds(p->c[2], fact, blu2);
-      vclamp(p->c[2]);
-      p->c[2][3] = fact * (maxage - p->age);
-   }
-}
-
-static void
-drawtree(float x, float y, float z)
-{
-   glBegin(GL_QUADS);
-   glTexCoord2f(0.0, 0.0);
-   glVertex3f(x - 1.5, y + 0.0, z);
-
-   glTexCoord2f(1.0, 0.0);
-   glVertex3f(x + 1.5, y + 0.0, z);
-
-   glTexCoord2f(1.0, 1.0);
-   glVertex3f(x + 1.5, y + 3.0, z);
-
-   glTexCoord2f(0.0, 1.0);
-   glVertex3f(x - 1.5, y + 3.0, z);
-
-
-   glTexCoord2f(0.0, 0.0);
-   glVertex3f(x, y + 0.0, z - 1.5);
-
-   glTexCoord2f(1.0, 0.0);
-   glVertex3f(x, y + 0.0, z + 1.5);
-
-   glTexCoord2f(1.0, 1.0);
-   glVertex3f(x, y + 3.0, z + 1.5);
-
-   glTexCoord2f(0.0, 1.0);
-   glVertex3f(x, y + 3.0, z - 1.5);
-
-   glEnd();
-
-}
-
-static void
-calcposobs(void)
-{
-   dir[0] = sin(alpha * M_PI / 180.0);
-   dir[2] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
-   dir[1] = cos(beta * M_PI / 180.0);
-
-   if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5)
-      dir[0] = 0;
-   if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5)
-      dir[1] = 0;
-   if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
-      dir[2] = 0;
-
-   obs[0] += v * dir[0];
-   obs[1] += v * dir[1];
-   obs[2] += v * dir[2];
-}
-
-static void
-printstring(void *font, char *string)
-{
-   int len, i;
-
-   len = (int) strlen(string);
-   for (i = 0; i < len; i++)
-      glutBitmapCharacter(font, string[i]);
-}
-
-static void
-reshape(int width, int height)
-{
-   WIDTH = width;
-   HEIGHT = height;
-   glViewport(0, 0, (GLint) width, (GLint) height);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(70.0, width / (float) height, 0.1, 30.0);
-
-   glMatrixMode(GL_MODELVIEW);
-}
-
-static void
-printhelp(void)
-{
-   glColor4f(0.0, 0.0, 0.0, 0.5);
-   glRecti(40, 40, 600, 440);
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(300, 420);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help");
-
-   glRasterPos2i(60, 390);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help");
-
-   glRasterPos2i(60, 360);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Increase particle size");
-   glRasterPos2i(60, 330);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "T - Decrease particle size");
-
-   glRasterPos2i(60, 300);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "r - Increase emission radius");
-   glRasterPos2i(60, 270);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "R - Decrease emission radius");
-
-   glRasterPos2i(60, 240);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog");
-   glRasterPos2i(60, 210);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "s - Toggle shadows");
-   glRasterPos2i(60, 180);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate");
-   glRasterPos2i(60, 150);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity");
-   glRasterPos2i(60, 120);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity");
-
-   glRasterPos2i(60, 90);
-   if (joyavailable)
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "j - Toggle jostick control (Joystick control available)");
-   else
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "(No Joystick control available)");
-}
-
-static void
-dojoy(void)
-{
-#ifdef WIN32
-   static UINT max[2] = { 0, 0 };
-   static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2];
-   MMRESULT res;
-   JOYINFO joy;
-
-   res = joyGetPos(JOYSTICKID1, &joy);
-
-   if (res == JOYERR_NOERROR) {
-      joyavailable = 1;
-
-      if (max[0] < joy.wXpos)
-	 max[0] = joy.wXpos;
-      if (min[0] > joy.wXpos)
-	 min[0] = joy.wXpos;
-      center[0] = (max[0] + min[0]) / 2;
-
-      if (max[1] < joy.wYpos)
-	 max[1] = joy.wYpos;
-      if (min[1] > joy.wYpos)
-	 min[1] = joy.wYpos;
-      center[1] = (max[1] + min[1]) / 2;
-
-      if (joyactive) {
-	 if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0]))
-	    alpha +=
-	       2.5 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
-	 if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
-	    beta += 2.5 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
-	 if (joy.wButtons & JOY_BUTTON1)
-	    v += 0.01;
-	 if (joy.wButtons & JOY_BUTTON2)
-	    v -= 0.01;
-      }
-   }
-   else
-      joyavailable = 0;
-#endif
-}
-
-static void
-drawfire(void)
-{
-   static char frbuf[80] = "";
-   int j;
-   static double t0 = -1.;
-   double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = (t - t0) * 1.0;
-   t0 = t;
-
-   dojoy();
-
-   if (NiceFog)
-      glHint(GL_FOG_HINT, GL_NICEST);
-   else
-      glHint(GL_FOG_HINT, GL_DONT_CARE);
-
-   glEnable(GL_DEPTH_TEST);
-
-   if (fog)
-      glEnable(GL_FOG);
-   else
-      glDisable(GL_FOG);
-
-   glDepthMask(GL_TRUE);
-   glClearColor(1.0, 1.0, 1.0, 1.0);
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-   glPushMatrix();
-   calcposobs();
-   gluLookAt(obs[0], obs[1], obs[2],
-	     obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
-	     0.0, 1.0, 0.0);
-
-   glColor4f(1.0, 1.0, 1.0, 1.0);
-
-   glEnable(GL_TEXTURE_2D);
-
-   glBindTexture(GL_TEXTURE_2D, groundid);
-#if 1
-   glBegin(GL_QUADS);
-   glTexCoord2fv(qt[0]);
-   glVertex3fv(q[0]);
-   glTexCoord2fv(qt[1]);
-   glVertex3fv(q[1]);
-   glTexCoord2fv(qt[2]);
-   glVertex3fv(q[2]);
-   glTexCoord2fv(qt[3]);
-   glVertex3fv(q[3]);
-   glEnd();
-#else
-   /* Subdivide the ground into a bunch of quads.  This improves fog
-    * if GL_FOG_HINT != GL_NICEST
-    */
-   {
-      float x, y;
-      float dx = 1.0, dy = 1.0;
-      glBegin(GL_QUADS);
-      for (y = -DIMP; y < DIMP; y += 1.0) {
-         for (x = -DIMP; x < DIMP; x += 1.0) {
-            glTexCoord2f(0, 0);   glVertex3f(x, 0, y);
-            glTexCoord2f(1, 0);   glVertex3f(x+dx, 0, y);
-            glTexCoord2f(1, 1);   glVertex3f(x+dx, 0, y+dy);
-            glTexCoord2f(0, 1);   glVertex3f(x, 0, y+dy);
-         }
-      }
-      glEnd();
-   }
-#endif
-
-
-   glEnable(GL_ALPHA_TEST);
-   glAlphaFunc(GL_GEQUAL, 0.9);
-
-   glBindTexture(GL_TEXTURE_2D, treeid);
-   for (j = 0; j < NUMTREE; j++)
-      drawtree(treepos[j][0], treepos[j][1], treepos[j][2]);
-
-   glDisable(GL_TEXTURE_2D);
-   glDepthMask(GL_FALSE);
-   glDisable(GL_ALPHA_TEST);
-
-   if (shadows) {
-      glBegin(GL_TRIANGLES);
-      for (j = 0; j < np; j++) {
-	 glColor4f(black[0], black[1], black[2], p[j].c[0][3]);
-	 glVertex3f(p[j].p[0][0], 0.1, p[j].p[0][2]);
-
-	 glColor4f(black[0], black[1], black[2], p[j].c[1][3]);
-	 glVertex3f(p[j].p[1][0], 0.1, p[j].p[1][2]);
-
-	 glColor4f(black[0], black[1], black[2], p[j].c[2][3]);
-	 glVertex3f(p[j].p[2][0], 0.1, p[j].p[2][2]);
-      }
-      glEnd();
-   }
-
-   glBegin(GL_TRIANGLES);
-   for (j = 0; j < np; j++) {
-      glColor4fv(p[j].c[0]);
-      glVertex3fv(p[j].p[0]);
-
-      glColor4fv(p[j].c[1]);
-      glVertex3fv(p[j].p[1]);
-
-      glColor4fv(p[j].c[2]);
-      glVertex3fv(p[j].p[2]);
-
-      setpart(&p[j]);
-   }
-   glEnd();
-
-   glDisable(GL_TEXTURE_2D);
-   glDisable(GL_ALPHA_TEST);
-   glDisable(GL_DEPTH_TEST);
-   glDisable(GL_FOG);
-
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(10, 10);
-   printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
-   glRasterPos2i(370, 470);
-   printstring(GLUT_BITMAP_HELVETICA_10,
-	       "Fire V1.5 Written by David Bucciarelli (tech.hmw@plus.it)");
-
-   if (help)
-      printhelp();
-
-   reshape(WIDTH, HEIGHT);
-   glPopMatrix();
-
-   glutSwapBuffers();
-
-   Frames++;
-   {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      if (t - T0 >= 2000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         sprintf(frbuf, "Frame rate: %f", fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-
-static void
-idle(void)
-{
-   glutPostRedisplay();
-}
-
-
-static void
-special(int key, int x, int y)
-{
-   switch (key) {
-   case GLUT_KEY_LEFT:
-      alpha += 2.0;
-      break;
-   case GLUT_KEY_RIGHT:
-      alpha -= 2.0;
-      break;
-   case GLUT_KEY_DOWN:
-      beta -= 2.0;
-      break;
-   case GLUT_KEY_UP:
-      beta += 2.0;
-      break;
-   }
-   glutPostRedisplay();
-}
-
-static void
-key(unsigned char key, int x, int y)
-{
-   switch (key) {
-   case 27:
-      exit(0);
-      break;
-
-   case 'a':
-      v += 0.0005;
-      break;
-   case 'z':
-      v -= 0.0005;
-      break;
-
-   case 'j':
-      joyactive = (!joyactive);
-      break;
-   case 'h':
-      help = (!help);
-      break;
-   case 'f':
-      fog = (!fog);
-      break;
-   case 's':
-      shadows = !shadows;
-      break;
-   case 'R':
-      eject_r -= 0.03;
-      break;
-   case 'r':
-      eject_r += 0.03;
-      break;
-   case 't':
-      ridtri += 0.005;
-      break;
-   case 'T':
-      ridtri -= 0.005;
-      break;
-#ifdef XMESA
-   case ' ':
-      XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-      fullscreen = (!fullscreen);
-      break;
-#endif
-   case 'n':
-      NiceFog = !NiceFog;
-      printf("NiceFog %d\n", NiceFog);
-      break;
-   }
-   glutPostRedisplay();
-}
-
-static void
-inittextures(void)
-{
-   GLenum gluerr;
-   GLubyte tex[128][128][4];
-
-   glGenTextures(1, &groundid);
-   glBindTexture(GL_TEXTURE_2D, groundid);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
-   if (!LoadRGBMipmaps("../images/s128.rgb", GL_RGB)) {
-      fprintf(stderr, "Error reading a texture.\n");
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-
-   glGenTextures(1, &treeid);
-   glBindTexture(GL_TEXTURE_2D, treeid);
-
-   if (1)
-   {
-      int w, h;
-      GLenum format;
-      int x, y;
-      GLubyte *image = LoadRGBImage("../images/tree3.rgb", &w, &h, &format);
-
-      if (!image) {
-	 fprintf(stderr, "Error reading a texture.\n");
-	 exit(-1);
-      }
-
-      for (y = 0; y < 128; y++)
-	 for (x = 0; x < 128; x++) {
-	    tex[x][y][0] = image[(y + x * 128) * 3];
-	    tex[x][y][1] = image[(y + x * 128) * 3 + 1];
-	    tex[x][y][2] = image[(y + x * 128) * 3 + 2];
-	    if ((tex[x][y][0] == tex[x][y][1]) &&
-		(tex[x][y][1] == tex[x][y][2]) && (tex[x][y][2] == 255))
-	       tex[x][y][3] = 0;
-	    else
-	       tex[x][y][3] = 255;
-	 }
-
-      if ((gluerr = gluBuild2DMipmaps(GL_TEXTURE_2D, 4, 128, 128, GL_RGBA,
-				      GL_UNSIGNED_BYTE, (GLvoid *) (tex)))) {
-	 fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
-	 exit(-1);
-      }
-   }
-   else {
-      if (!LoadRGBMipmaps("../images/tree2.rgba", GL_RGBA)) {
-	 fprintf(stderr, "Error reading a texture.\n");
-	 exit(-1);
-      }
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-}
-
-static void
-inittree(void)
-{
-   int i;
-   float dist;
-
-   for (i = 0; i < NUMTREE; i++)
-      do {
-	 treepos[i][0] = vrnd() * TREEOUTR * 2.0 - TREEOUTR;
-	 treepos[i][1] = 0.0;
-	 treepos[i][2] = vrnd() * TREEOUTR * 2.0 - TREEOUTR;
-	 dist =
-	    sqrt(treepos[i][0] * treepos[i][0] +
-		 treepos[i][2] * treepos[i][2]);
-      } while ((dist < TREEINR) || (dist > TREEOUTR));
-}
-
-int
-main(int ac, char **av)
-{
-   int i;
-
-   fprintf(stderr,
-	   "Fire V1.5\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
-
-   /* Default settings */
-
-   np = 800;
-   eject_r = -0.65;
-   dt = 0.015;
-   eject_vy = 4;
-   eject_vl = 1;
-   shadows = 1;
-   ridtri = 0.25;
-
-   maxage = 1.0 / dt;
-
-   if (ac == 2)
-      np = atoi(av[1]);
-
-   if (ac == 4) {
-      WIDTH = atoi(av[2]);
-      HEIGHT = atoi(av[3]);
-   }
-
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WIDTH, HEIGHT);
-   glutInit(&ac, av);
-
-   glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
-
-   if (!(win = glutCreateWindow("Fire"))) {
-      fprintf(stderr, "Error opening a window.\n");
-      exit(-1);
-   }
-
-   reshape(WIDTH, HEIGHT);
-
-   inittextures();
-
-   glShadeModel(GL_FLAT);
-   glEnable(GL_DEPTH_TEST);
-
-   glEnable(GL_BLEND);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-   glEnable(GL_FOG);
-   glFogi(GL_FOG_MODE, GL_EXP);
-   glFogfv(GL_FOG_COLOR, fogcolor);
-   glFogf(GL_FOG_DENSITY, 0.1);
-
-   p = (part *) malloc(sizeof(part) * np);
-
-   for (i = 0; i < np; i++)
-      setnewpart(&p[i]);
-
-   inittree();
-
-   glutKeyboardFunc(key);
-   glutSpecialFunc(special);
-   glutDisplayFunc(drawfire);
-   glutIdleFunc(idle);
-   glutReshapeFunc(reshape);
-   glutMainLoop();
-
-   return (0);
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/fogcoord.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/fogcoord.c
deleted file mode 100644
index 19a15f05b..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/fogcoord.c
+++ /dev/null
@@ -1,420 +0,0 @@
-/*
- * EXT_fog_coord.
- *
- * Based on glutskel.c by Brian Paul
- * and NeHe's Volumetric fog tutorial!
- *
- * Daniel Borca
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glut.h>
-
-#include "readtex.h"
-
-#define TEXTURE_FILE "../images/bw.rgb"
-
-#define ARRAYS 0     /* use glDrawElements   */
-
-#define VERBOSE 1    /* tell me what happens */
-
-#define DEPTH 15.0f
-
-#if !defined(GLAPIENTRYP)
-#    define GLAPIENTRYP *
-#endif
-
-typedef void (GLAPIENTRYP GLFOGCOORDFEXTPROC) (GLfloat f);
-typedef void (GLAPIENTRYP GLFOGCOORDPOINTEREXTPROC) (GLenum, GLsizei, const GLvoid *);
-
-static GLFOGCOORDFEXTPROC glFogCoordf_ext;
-#if ARRAYS
-static GLFOGCOORDPOINTEREXTPROC glFogCoordPointer_ext;
-#endif
-static GLboolean have_fog_coord;
-
-static GLfloat camz;
-static GLuint texture[1];
-
-static GLint fogMode;
-static GLboolean fogCoord;
-static GLfloat fogDensity = 0.75;
-static GLfloat fogStart = 1.0, fogEnd = 40.0;
-static GLfloat fogColor[4] = {0.6f, 0.3f, 0.0f, 1.0f};
-
-
-static void APIENTRY glFogCoordf_nop (GLfloat f)
-{
-   (void)f;
-}
-
-
-static int BuildTexture (const char *filename, GLuint texid[])
-{
-   GLubyte *tex_data;
-   GLenum tex_format;
-   GLint tex_width, tex_height;
-
-   tex_data = LoadRGBImage(filename, &tex_width, &tex_height, &tex_format);
-   if (tex_data == NULL) {
-      return -1;
-   }
-
-   {
-      GLint tex_max;
-      glGetIntegerv(GL_MAX_TEXTURE_SIZE, &tex_max);
-      if ((tex_width > tex_max) || (tex_height > tex_max)) {
-         return -1;
-      }
-   }
-
-   glGenTextures(1, texid);
-   
-   glBindTexture(GL_TEXTURE_2D, texid[0]);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glTexImage2D(GL_TEXTURE_2D, 0, tex_format, tex_width, tex_height, 0,
-                tex_format, GL_UNSIGNED_BYTE, tex_data);
-
-   return 0;
-}
-
-
-static int SetFogMode (GLint fogMode)
-{
-   fogMode &= 3;
-   switch (fogMode) {
-   case 0:
-      glDisable(GL_FOG);
-#if VERBOSE
-      printf("fog(disable)\n");
-#endif
-      break;
-   case 1:
-      glEnable(GL_FOG);
-      glFogi(GL_FOG_MODE, GL_LINEAR);
-      glFogf(GL_FOG_START, fogStart);
-      glFogf(GL_FOG_END, fogEnd);
-#if VERBOSE
-      printf("fog(GL_LINEAR, %.2f, %.2f)\n", fogStart, fogEnd);
-#endif
-      break;
-   case 2:
-      glEnable(GL_FOG);
-      glFogi(GL_FOG_MODE, GL_EXP);
-      glFogf(GL_FOG_DENSITY, fogDensity);
-#if VERBOSE
-      printf("fog(GL_EXP, %.2f)\n", fogDensity);
-#endif
-      break;
-   case 3:
-      glEnable(GL_FOG);
-      glFogi(GL_FOG_MODE, GL_EXP2);
-      glFogf(GL_FOG_DENSITY, fogDensity);
-#if VERBOSE
-      printf("fog(GL_EXP2, %.2f)\n", fogDensity);
-#endif
-      break;
-   }
-   return fogMode;
-}
-
-
-static GLboolean SetFogCoord (GLboolean fogCoord)
-{
-   glFogCoordf_ext = glFogCoordf_nop;
-
-   if (!have_fog_coord) {
-#if VERBOSE
-      printf("fog(GL_FRAGMENT_DEPTH_EXT)%s\n", fogCoord ? " EXT_fog_coord not available!" : "");
-#endif
-      return GL_FALSE;
-   }
-
-   if (fogCoord) {
-      glFogCoordf_ext = (GLFOGCOORDFEXTPROC)glutGetProcAddress("glFogCoordfEXT");
-      glFogi(GL_FOG_COORDINATE_SOURCE_EXT, GL_FOG_COORDINATE_EXT);
-#if VERBOSE
-      printf("fog(GL_FOG_COORDINATE_EXT)\n");
-#endif
-   } else {
-      glFogi(GL_FOG_COORDINATE_SOURCE_EXT, GL_FRAGMENT_DEPTH_EXT);
-#if VERBOSE
-      printf("fog(GL_FRAGMENT_DEPTH_EXT)\n");
-#endif
-   }
-   return fogCoord;
-}
-
-
-#if ARRAYS
-/* could reuse vertices */
-static GLuint vertex_index[] = {
-   /* Back */
-   0, 1, 2, 3,
-
-   /* Floor */
-   4, 5, 6, 7,
-
-   /* Roof */
-   8, 9, 10, 11,
-
-   /* Right */
-   12, 13, 14, 15,
-
-   /* Left */
-   16, 17, 18, 19
-};
-
-static GLfloat vertex_pointer[][3] = {
-   /* Back */
-   {-2.5f,-2.5f,-DEPTH}, { 2.5f,-2.5f,-DEPTH}, { 2.5f, 2.5f,-DEPTH}, {-2.5f, 2.5f,-DEPTH},
-
-   /* Floor */
-   {-2.5f,-2.5f,-DEPTH}, { 2.5f,-2.5f,-DEPTH}, { 2.5f,-2.5f, DEPTH}, {-2.5f,-2.5f, DEPTH},
-
-   /* Roof */
-   {-2.5f, 2.5f,-DEPTH}, { 2.5f, 2.5f,-DEPTH}, { 2.5f, 2.5f, DEPTH}, {-2.5f, 2.5f, DEPTH},
-
-   /* Right */
-   { 2.5f,-2.5f, DEPTH}, { 2.5f, 2.5f, DEPTH}, { 2.5f, 2.5f,-DEPTH}, { 2.5f,-2.5f,-DEPTH},
-
-   /* Left */
-   {-2.5f,-2.5f, DEPTH}, {-2.5f, 2.5f, DEPTH}, {-2.5f, 2.5f,-DEPTH}, {-2.5f,-2.5f,-DEPTH}
-};
-
-static GLfloat texcoord_pointer[][2] = {
-   /* Back */
-   {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f},
-
-   /* Floor */
-   {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f},
-
-   /* Roof */
-   {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f},
-
-   /* Right */
-   {0.0f, 0.0f}, {0.0f, 1.0f}, {1.0f, 1.0f}, {1.0f, 0.0f},
-
-   /* Left */
-   {0.0f, 0.0f}, {0.0f, 1.0f}, {1.0f, 1.0f}, {1.0f, 0.0f}
-};
-
-static GLfloat fogcoord_pointer[][1] = {
-   /* Back */
-   {1.0f}, {1.0f}, {1.0f}, {1.0f},
-
-   /* Floor */
-   {1.0f}, {1.0f}, {0.0f}, {0.0f},
-
-   /* Roof */
-   {1.0f}, {1.0f}, {0.0f}, {0.0f},
-
-   /* Right */
-   {0.0f}, {0.0f}, {1.0f}, {1.0f},
-
-   /* Left */
-   {0.0f}, {0.0f}, {1.0f}, {1.0f}
-};
-#endif
-
-
-static void Display( void )
-{
-   glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-   glLoadIdentity ();
-   
-   glTranslatef(0.0f, 0.0f, camz);
-
-#if ARRAYS
-   glDrawElements(GL_QUADS, sizeof(vertex_index) / sizeof(vertex_index[0]), GL_UNSIGNED_INT, vertex_index);
-#else
-   /* Back */
-   glBegin(GL_QUADS);
-   glFogCoordf_ext(1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.5f,-2.5f,-DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.5f,-2.5f,-DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.5f, 2.5f,-DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.5f, 2.5f,-DEPTH);
-   glEnd();
-
-   /* Floor */
-   glBegin(GL_QUADS);
-   glFogCoordf_ext(1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.5f,-2.5f,-DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.5f,-2.5f,-DEPTH);
-   glFogCoordf_ext(0.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.5f,-2.5f, DEPTH);
-   glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.5f,-2.5f, DEPTH);
-   glEnd();
-
-   /* Roof */
-   glBegin(GL_QUADS);
-   glFogCoordf_ext(1.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.5f, 2.5f,-DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.5f, 2.5f,-DEPTH);
-   glFogCoordf_ext(0.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.5f, 2.5f, DEPTH);
-   glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.5f, 2.5f, DEPTH);
-   glEnd();
-
-   /* Right */
-   glBegin(GL_QUADS);
-   glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f( 2.5f,-2.5f, DEPTH);
-   glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f( 2.5f, 2.5f, DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.5f, 2.5f,-DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.5f,-2.5f,-DEPTH);
-   glEnd();
-
-   /* Left */
-   glBegin(GL_QUADS);
-   glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.5f,-2.5f, DEPTH);
-   glFogCoordf_ext(0.0f); glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.5f, 2.5f, DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 1.0f); glVertex3f(-2.5f, 2.5f,-DEPTH);
-   glFogCoordf_ext(1.0f); glTexCoord2f(1.0f, 0.0f); glVertex3f(-2.5f,-2.5f,-DEPTH);
-   glEnd();
-#endif
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport(0, 0, width, height);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(45.0f, (GLfloat)(width)/(GLfloat)(height), 0.1f, 100.0f);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 'f':
-         fogMode = SetFogMode(fogMode + 1);
-         break;
-      case '+':
-         if (fogDensity < 1.0) {
-            fogDensity += 0.05;
-         }
-         SetFogMode(fogMode);
-         break;
-      case '-':
-         if (fogDensity > 0.0) {
-            fogDensity -= 0.05;
-         }
-         SetFogMode(fogMode);
-         break;
-      case 's':
-         if (fogStart > 0.0) {
-            fogStart -= 1.0;
-         }
-         SetFogMode(fogMode);
-         break;
-      case 'S':
-         if (fogStart < fogEnd) {
-            fogStart += 1.0;
-         }
-         SetFogMode(fogMode);
-         break;
-      case 'e':
-         if (fogEnd > fogStart) {
-            fogEnd -= 1.0;
-         }
-         SetFogMode(fogMode);
-         break;
-      case 'E':
-         if (fogEnd < 100.0) {
-            fogEnd += 1.0;
-         }
-         SetFogMode(fogMode);
-         break;
-      case 'c':
-         fogCoord = SetFogCoord(fogCoord ^ GL_TRUE);
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         if (camz < (DEPTH - 1.0)) {
-            camz += 1.0f;
-         }
-         break;
-      case GLUT_KEY_DOWN:
-         if (camz > -19.0) {
-            camz -= 1.0f;
-         }
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
-   have_fog_coord = glutExtensionSupported("GL_EXT_fog_coord");
-
-   if (BuildTexture(TEXTURE_FILE, texture) == -1) {
-      exit(1);
-   }
-
-   glEnable(GL_TEXTURE_2D);
-   glClearColor(0.0f, 0.0f, 0.0f, 0.5f);
-   glClearDepth(1.0f);
-   glDepthFunc(GL_LEQUAL);
-   glEnable(GL_DEPTH_TEST);
-   glShadeModel(GL_SMOOTH);
-   glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
-
-   glFogfv(GL_FOG_COLOR, fogColor);
-   glHint(GL_FOG_HINT, GL_NICEST);
-   fogCoord = SetFogCoord(GL_TRUE); /* try to enable fog_coord */
-   fogMode = SetFogMode(2);         /* GL_EXP */
-
-   camz = -19.0f;
-
-#if ARRAYS
-   glEnableClientState(GL_VERTEX_ARRAY);
-   glVertexPointer(3, GL_FLOAT, 0, vertex_pointer);
-
-   glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-   glTexCoordPointer(2, GL_FLOAT, 0, texcoord_pointer);
-
-   if (have_fog_coord) {
-      glFogCoordPointer_ext = (GLFOGCOORDPOINTEREXTPROC)glutGetProcAddress("glFogCoordPointerEXT");
-      glEnableClientState(GL_FOG_COORDINATE_ARRAY_EXT);
-      glFogCoordPointer_ext(GL_FLOAT, 0, fogcoord_pointer);
-   }
-#endif
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 640, 480 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   Init();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/fplight.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/fplight.c
deleted file mode 100644
index c7a38248d..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/fplight.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * Use GL_NV_fragment_program to implement per-pixel lighting.
- *
- * Brian Paul
- * 7 April 2003
- */
-
-#include <assert.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#define GL_GLEXT_PROTOTYPES
-#include <GL/glut.h>
-
-
-static GLfloat Diffuse[4] = { 0.5, 0.5, 1.0, 1.0 };
-static GLfloat Specular[4] = { 0.8, 0.8, 0.8, 1.0 };
-static GLfloat LightPos[4] = { 0.0, 10.0, 20.0, 1.0 };
-static GLfloat Delta = 1.0;
-
-static GLuint FragProg;
-static GLuint VertProg;
-static GLboolean Anim = GL_TRUE;
-static GLboolean Wire = GL_FALSE;
-static GLboolean PixelLight = GL_TRUE;
-
-static GLfloat Xrot = 0, Yrot = 0;
-
-
-#define NAMED_PARAMETER4FV(prog, name, v)        \
-  glProgramNamedParameter4fvNV(prog, strlen(name), (const GLubyte *) name, v)
-
-
-static void Display( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-   if (PixelLight) {
-#if defined(GL_NV_fragment_program)
-      NAMED_PARAMETER4FV(FragProg, "LightPos", LightPos);
-      glEnable(GL_FRAGMENT_PROGRAM_NV);
-      glEnable(GL_VERTEX_PROGRAM_NV);
-#endif
-      glDisable(GL_LIGHTING);
-   }
-   else {
-      glLightfv(GL_LIGHT0, GL_POSITION, LightPos);
-#if defined(GL_NV_fragment_program)
-      glDisable(GL_FRAGMENT_PROGRAM_NV);
-      glDisable(GL_VERTEX_PROGRAM_NV);
-#endif
-      glEnable(GL_LIGHTING);
-   }
-
-   glPushMatrix();
-   glRotatef(Xrot, 1, 0, 0);
-   glRotatef(Yrot, 0, 1, 0);
-
-#if 1
-   glutSolidSphere(2.0, 10, 5);
-#else
-   {
-      GLUquadricObj *q = gluNewQuadric();
-      gluQuadricNormals(q, GL_SMOOTH);
-      gluQuadricTexture(q, GL_TRUE);
-      glRotatef(90, 1, 0, 0);
-      glTranslatef(0, 0, -1);
-      gluCylinder(q, 1.0, 1.0, 2.0, 24, 1);
-      gluDeleteQuadric(q);
-   }
-#endif
-
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-static void Idle(void)
-{
-   LightPos[0] += Delta;
-   if (LightPos[0] > 25.0)
-      Delta = -1.0;
-   else if (LightPos[0] <- 25.0)
-      Delta = 1.0;
-   glutPostRedisplay();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
-   /*glOrtho( -2.0, 2.0, -2.0, 2.0, 5.0, 25.0 );*/
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -15.0 );
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-     case ' ':
-        Anim = !Anim;
-        if (Anim)
-           glutIdleFunc(Idle);
-        else
-           glutIdleFunc(NULL);
-        break;
-      case 'x':
-         LightPos[0] -= 1.0;
-         break;
-      case 'X':
-         LightPos[0] += 1.0;
-         break;
-      case 'w':
-         Wire = !Wire;
-         if (Wire)
-            glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-         else
-            glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-         break;
-      case 'p':
-         PixelLight = !PixelLight;
-         if (PixelLight) {
-            printf("Per-pixel lighting\n");
-         }
-         else {
-            printf("Conventional lighting\n");
-         }
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-static void SpecialKey( int key, int x, int y )
-{
-   const GLfloat step = 3.0;
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         Xrot -= step;
-         break;
-      case GLUT_KEY_DOWN:
-         Xrot += step;
-         break;
-      case GLUT_KEY_LEFT:
-         Yrot -= step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Yrot += step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
-   static const char *fragProgramText =
-      "!!FP1.0\n"
-      "DECLARE Diffuse; \n"
-      "DECLARE Specular; \n"
-      "DECLARE LightPos; \n"
-
-      "# Compute normalized LightPos, put it in R0\n"
-      "DP3 R0.x, LightPos, LightPos;\n"
-      "RSQ R0.y, R0.x;\n"
-      "MUL R0, LightPos, R0.y;\n"
-
-      "# Compute normalized normal, put it in R1\n"
-      "DP3 R1, f[TEX0], f[TEX0]; \n"
-      "RSQ R1.y, R1.x;\n"
-      "MUL R1, f[TEX0], R1.y;\n"
-
-      "# Compute dot product of light direction and normal vector\n"
-      "DP3_SAT R2, R0, R1;"
-
-      "MUL R3, Diffuse, R2;    # diffuse attenuation\n"
-
-      "POW R4, R2.x, {20.0}.x; # specular exponent\n"
-
-      "MUL R5, Specular, R4;   # specular attenuation\n"
-
-      "ADD o[COLR], R3, R5;    # add diffuse and specular colors\n"
-      "END \n"
-      ;
-
-   static const char *vertProgramText =
-      "!!VP1.0\n"
-      "# typical modelview/projection transform\n"
-      "DP4   o[HPOS].x, c[0], v[OPOS] ;\n"
-      "DP4   o[HPOS].y, c[1], v[OPOS] ;\n"
-      "DP4   o[HPOS].z, c[2], v[OPOS] ;\n"
-      "DP4   o[HPOS].w, c[3], v[OPOS] ;\n"
-      "# transform normal by inv transpose of modelview, put in tex0\n"
-      "DP3   o[TEX0].x, c[4], v[NRML] ;\n"
-      "DP3   o[TEX0].y, c[5], v[NRML] ;\n"
-      "DP3   o[TEX0].z, c[6], v[NRML] ;\n"
-      "DP3   o[TEX0].w, c[7], v[NRML] ;\n"
-      "END\n";
-   ;
-
-   if (!glutExtensionSupported("GL_NV_vertex_program")) {
-      printf("Sorry, this demo requires GL_NV_vertex_program\n");
-      exit(1);
-   }
-   if (!glutExtensionSupported("GL_NV_fragment_program")) {
-      printf("Sorry, this demo requires GL_NV_fragment_program\n");
-      exit(1);
-   }
-         
-#if defined(GL_NV_fragment_program)
-   glGenProgramsNV(1, &FragProg);
-   assert(FragProg > 0);
-   glGenProgramsNV(1, &VertProg);
-   assert(VertProg > 0);
-
-   /*
-    * Fragment program
-    */
-   glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, FragProg,
-                   strlen(fragProgramText),
-                   (const GLubyte *) fragProgramText);
-   assert(glIsProgramNV(FragProg));
-   glBindProgramNV(GL_FRAGMENT_PROGRAM_NV, FragProg);
-
-   NAMED_PARAMETER4FV(FragProg, "Diffuse", Diffuse);
-   NAMED_PARAMETER4FV(FragProg, "Specular", Specular);
-
-   /*
-    * Vertex program
-    */
-   glLoadProgramNV(GL_VERTEX_PROGRAM_NV, VertProg,
-                   strlen(vertProgramText),
-                   (const GLubyte *) vertProgramText);
-   assert(glIsProgramNV(VertProg));
-   glBindProgramNV(GL_VERTEX_PROGRAM_NV, VertProg);
-   glTrackMatrixNV(GL_VERTEX_PROGRAM_NV, 0, GL_MODELVIEW_PROJECTION_NV, GL_IDENTITY_NV);
-   glTrackMatrixNV(GL_VERTEX_PROGRAM_NV, 4, GL_MODELVIEW, GL_INVERSE_TRANSPOSE_NV);
-#endif
-
-   /*
-    * Misc init
-    */
-   glClearColor(0.3, 0.3, 0.3, 0.0);
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_LIGHT0);
-   glEnable(GL_LIGHTING);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, Diffuse);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, Specular);
-   glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 20.0);
-
-   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
-   printf("Press p to toggle between per-pixel and per-vertex lighting\n");
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 200, 200 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   if (Anim)
-      glutIdleFunc(Idle);
-   Init();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/gamma.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/gamma.c
deleted file mode 100644
index 9b2c3e105..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/gamma.c
+++ /dev/null
@@ -1,162 +0,0 @@
-
-/* Draw test patterns to help determine correct gamma value for a display.
-   When the intensities of the inner squares nearly match the intensities
-   of their frames (from some distance the borders should disappear) then
-   you've found the right gamma value.
-
-   You can set Mesa's gamma values (for red, green and blue) with the
-   MESA_GAMMA environment variable.  But only on X windows!
-   For example:
-        setenv MESA_GAMMA 1.5 1.6 1.4
-   Sets the red gamma value to 1.5, green to 1.6 and blue to 1.4.
-   See the main README file for more information.
-
-   For more info about gamma correction see:
-   http://www.inforamp.net/~poynton/notes/colour_and_gamma/GammaFAQ.html
-
-   This program is in the public domain
-
-   Brian Paul  19 Oct 1995
-   Kai Schuetz 05 Jun 1999 */
-
-/* Conversion to GLUT by Mark J. Kilgard */
-
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <GL/glut.h>
-
-static void
-Reshape(int width, int height)
-{
-  glViewport(0, 0, (GLint) width, (GLint) height);
-
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
-  glMatrixMode(GL_MODELVIEW);
-  glShadeModel(GL_FLAT);
-}
-
-/* ARGSUSED1 */
-static void
-key_esc(unsigned char key, int x, int y)
-{
-  if(key == 27) exit(0);  /* Exit on Escape */
-}
-
-static GLubyte p25[] = {
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
-};
-
-static GLubyte p50[] = {
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-  0xaa, 0xaa, 0xaa, 0xaa, 0x55, 0x55, 0x55, 0x55,
-};
-
-static GLubyte p75[] = {
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-  0xaa, 0xaa, 0xaa, 0xaa, 0xff, 0xff, 0xff, 0xff,
-};
-
-static GLubyte *stippletab[4] = {NULL, p25, p50, p75};
-
-static void
-gamma_ramp(GLfloat yoffs, GLfloat r, GLfloat g, GLfloat b)
-{
-  GLint d;
-
-  glColor3f(0.0, 0.0, 0.0);     /* solid black, no stipple */
-  glRectf(-1.0, yoffs, -0.6, yoffs + 0.5);
-
-  for(d = 1; d < 4; d++) {  /* increasing density from 25% to 75% */
-    GLfloat xcoord = (-1.0 + d*0.4);
-    GLfloat t = d * 0.25;
-
-    glColor3f(r*t, g*t, b*t); /* draw outer rect */
-    glRectf(xcoord, yoffs, xcoord+0.4, yoffs + 0.5);
-
-    glColor3f(0.0, 0.0, 0.0);   /* "clear" inner rect */
-    glRectf(xcoord + 0.1, yoffs + 0.125, xcoord + 0.3, yoffs + 0.375);
-
-    glColor3f(r, g, b);         /* draw stippled inner rect */
-    glEnable(GL_POLYGON_STIPPLE);
-    glPolygonStipple(stippletab[d]);
-    glRectf(xcoord + 0.1, yoffs + 0.125, xcoord + 0.3, yoffs + 0.375);
-    glDisable(GL_POLYGON_STIPPLE);
-  }
-  glColor3f(r, g, b);           /* solid color, no stipple */
-  glRectf(0.6, yoffs, 1.0, yoffs + 0.5);
-}
-
-static void
-display(void)
-{
-  gamma_ramp( 0.5, 1.0, 1.0, 1.0); /* white ramp */
-  gamma_ramp( 0.0, 1.0, 0.0, 0.0); /* red ramp */
-  gamma_ramp(-0.5, 0.0, 1.0, 0.0); /* green ramp */
-  gamma_ramp(-1.0, 0.0, 0.0, 1.0); /* blue ramp */
-  glFlush();
-}
-
-int
-main(int argc, char **argv)
-{
-  glutInit(&argc, argv);
-  glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE);
-
-  glutInitWindowPosition(50, 50);
-  glutInitWindowSize(500, 400);
-
-  glutCreateWindow("gamma test patterns");
-  glutReshapeFunc(Reshape);
-  glutDisplayFunc(display);
-  glutKeyboardFunc(key_esc);
-
-  glutMainLoop();
-  return 0;             /* ANSI C requires main to return int. */
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/gears.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/gears.c
deleted file mode 100644
index ab9bc0074..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/gears.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * 3-D gear wheels.  This program is in the public domain.
- *
- * Command line options:
- *    -info      print GL implementation information
- *    -exit      automatically exit after 30 seconds
- *
- *
- * Brian Paul
- */
-
-/* Conversion to GLUT by Mark J. Kilgard */
-
-
-
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <GL/glut.h>
-
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-static GLint autoexit = 0;
-static GLint win = 0;
-
-
-/**
-
-  Draw a gear wheel.  You'll probably want to call this function when
-  building a display list since we do a lot of trig here.
- 
-  Input:  inner_radius - radius of hole at center
-          outer_radius - radius at center of teeth
-          width - width of gear
-          teeth - number of teeth
-          tooth_depth - depth of tooth
-
- **/
-
-static void
-gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
-  GLint teeth, GLfloat tooth_depth)
-{
-  GLint i;
-  GLfloat r0, r1, r2;
-  GLfloat angle, da;
-  GLfloat u, v, len;
-
-  r0 = inner_radius;
-  r1 = outer_radius - tooth_depth / 2.0;
-  r2 = outer_radius + tooth_depth / 2.0;
-
-  da = 2.0 * M_PI / teeth / 4.0;
-
-  glShadeModel(GL_FLAT);
-
-  glNormal3f(0.0, 0.0, 1.0);
-
-  /* draw front face */
-  glBegin(GL_QUAD_STRIP);
-  for (i = 0; i <= teeth; i++) {
-    angle = i * 2.0 * M_PI / teeth;
-    glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
-    glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
-    if (i < teeth) {
-      glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
-      glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
-    }
-  }
-  glEnd();
-
-  /* draw front sides of teeth */
-  glBegin(GL_QUADS);
-  da = 2.0 * M_PI / teeth / 4.0;
-  for (i = 0; i < teeth; i++) {
-    angle = i * 2.0 * M_PI / teeth;
-
-    glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
-    glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
-    glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), width * 0.5);
-    glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
-  }
-  glEnd();
-
-  glNormal3f(0.0, 0.0, -1.0);
-
-  /* draw back face */
-  glBegin(GL_QUAD_STRIP);
-  for (i = 0; i <= teeth; i++) {
-    angle = i * 2.0 * M_PI / teeth;
-    glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
-    glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
-    if (i < teeth) {
-      glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
-      glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
-    }
-  }
-  glEnd();
-
-  /* draw back sides of teeth */
-  glBegin(GL_QUADS);
-  da = 2.0 * M_PI / teeth / 4.0;
-  for (i = 0; i < teeth; i++) {
-    angle = i * 2.0 * M_PI / teeth;
-
-    glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
-    glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -width * 0.5);
-    glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
-    glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
-  }
-  glEnd();
-
-  /* draw outward faces of teeth */
-  glBegin(GL_QUAD_STRIP);
-  for (i = 0; i < teeth; i++) {
-    angle = i * 2.0 * M_PI / teeth;
-
-    glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
-    glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
-    u = r2 * cos(angle + da) - r1 * cos(angle);
-    v = r2 * sin(angle + da) - r1 * sin(angle);
-    len = sqrt(u * u + v * v);
-    u /= len;
-    v /= len;
-    glNormal3f(v, -u, 0.0);
-    glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
-    glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
-    glNormal3f(cos(angle), sin(angle), 0.0);
-    glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), width * 0.5);
-    glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), -width * 0.5);
-    u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
-    v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
-    glNormal3f(v, -u, 0.0);
-    glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), width * 0.5);
-    glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), -width * 0.5);
-    glNormal3f(cos(angle), sin(angle), 0.0);
-  }
-
-  glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
-  glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
-
-  glEnd();
-
-  glShadeModel(GL_SMOOTH);
-
-  /* draw inside radius cylinder */
-  glBegin(GL_QUAD_STRIP);
-  for (i = 0; i <= teeth; i++) {
-    angle = i * 2.0 * M_PI / teeth;
-    glNormal3f(-cos(angle), -sin(angle), 0.0);
-    glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
-    glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
-  }
-  glEnd();
-
-}
-
-static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
-static GLint gear1, gear2, gear3;
-static GLfloat angle = 0.0;
-
-static void
-cleanup(void)
-{
-   glDeleteLists(gear1, 1);
-   glDeleteLists(gear2, 1);
-   glDeleteLists(gear3, 1);
-   glutDestroyWindow(win);
-}
-
-static void
-draw(void)
-{
-  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-  glPushMatrix();
-    glRotatef(view_rotx, 1.0, 0.0, 0.0);
-    glRotatef(view_roty, 0.0, 1.0, 0.0);
-    glRotatef(view_rotz, 0.0, 0.0, 1.0);
-
-    glPushMatrix();
-      glTranslatef(-3.0, -2.0, 0.0);
-      glRotatef(angle, 0.0, 0.0, 1.0);
-      glCallList(gear1);
-    glPopMatrix();
-
-    glPushMatrix();
-      glTranslatef(3.1, -2.0, 0.0);
-      glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
-      glCallList(gear2);
-    glPopMatrix();
-
-    glPushMatrix();
-      glTranslatef(-3.1, 4.2, 0.0);
-      glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
-      glCallList(gear3);
-    glPopMatrix();
-
-  glPopMatrix();
-
-  glutSwapBuffers();
-
-  Frames++;
-
-  {
-    GLint t = glutGet(GLUT_ELAPSED_TIME);
-    if (t - T0 >= 5000) {
-      GLfloat seconds = (t - T0) / 1000.0;
-      GLfloat fps = Frames / seconds;
-      printf("%d frames in %6.3f seconds = %6.3f FPS\n", Frames, seconds, fps);
-      T0 = t;
-      Frames = 0;
-      if ((t >= 999.0 * autoexit) && (autoexit)) {
-        cleanup();
-        exit(0);
-      }
-    }
-  }
-}
-
-
-static void
-idle(void)
-{
-  static double t0 = -1.;
-  double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-  if (t0 < 0.0)
-    t0 = t;
-  dt = t - t0;
-  t0 = t;
-
-  angle += 70.0 * dt;  /* 70 degrees per second */
-  angle = fmod(angle, 360.0); /* prevents eventual overflow */
-
-  glutPostRedisplay();
-}
-
-/* change view angle, exit upon ESC */
-/* ARGSUSED1 */
-static void
-key(unsigned char k, int x, int y)
-{
-  switch (k) {
-  case 'z':
-    view_rotz += 5.0;
-    break;
-  case 'Z':
-    view_rotz -= 5.0;
-    break;
-  case 27:  /* Escape */
-    cleanup();
-    exit(0);
-    break;
-  default:
-    return;
-  }
-  glutPostRedisplay();
-}
-
-/* change view angle */
-/* ARGSUSED1 */
-static void
-special(int k, int x, int y)
-{
-  switch (k) {
-  case GLUT_KEY_UP:
-    view_rotx += 5.0;
-    break;
-  case GLUT_KEY_DOWN:
-    view_rotx -= 5.0;
-    break;
-  case GLUT_KEY_LEFT:
-    view_roty += 5.0;
-    break;
-  case GLUT_KEY_RIGHT:
-    view_roty -= 5.0;
-    break;
-  default:
-    return;
-  }
-  glutPostRedisplay();
-}
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
-  GLfloat h = (GLfloat) height / (GLfloat) width;
-
-  glViewport(0, 0, (GLint) width, (GLint) height);
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-  glTranslatef(0.0, 0.0, -40.0);
-}
-
-static void
-init(int argc, char *argv[])
-{
-  static GLfloat pos[4] = {5.0, 5.0, 10.0, 0.0};
-  static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0};
-  static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0};
-  static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0};
-  GLint i;
-
-  glLightfv(GL_LIGHT0, GL_POSITION, pos);
-  glEnable(GL_CULL_FACE);
-  glEnable(GL_LIGHTING);
-  glEnable(GL_LIGHT0);
-  glEnable(GL_DEPTH_TEST);
-
-  /* make the gears */
-  gear1 = glGenLists(1);
-  glNewList(gear1, GL_COMPILE);
-  glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
-  gear(1.0, 4.0, 1.0, 20, 0.7);
-  glEndList();
-
-  gear2 = glGenLists(1);
-  glNewList(gear2, GL_COMPILE);
-  glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
-  gear(0.5, 2.0, 2.0, 10, 0.7);
-  glEndList();
-
-  gear3 = glGenLists(1);
-  glNewList(gear3, GL_COMPILE);
-  glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
-  gear(1.3, 2.0, 0.5, 10, 0.7);
-  glEndList();
-
-  glEnable(GL_NORMALIZE);
-
-  for ( i=1; i<argc; i++ ) {
-    if (strcmp(argv[i], "-info")==0) {
-      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
-      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
-      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
-      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
-    }
-    else if ( strcmp(argv[i], "-exit")==0) {
-      autoexit = 30;
-      printf("Auto Exit after %i seconds.\n", autoexit );
-    }
-  }
-}
-
-static void 
-visible(int vis)
-{
-  if (vis == GLUT_VISIBLE)
-    glutIdleFunc(idle);
-  else
-    glutIdleFunc(NULL);
-}
-
-int main(int argc, char *argv[])
-{
-  glutInit(&argc, argv);
-  glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
-
-  glutInitWindowPosition(0, 0);
-  glutInitWindowSize(300, 300);
-  win = glutCreateWindow("Gears");
-  init(argc, argv);
-
-  glutDisplayFunc(draw);
-  glutReshapeFunc(reshape);
-  glutKeyboardFunc(key);
-  glutSpecialFunc(special);
-  glutVisibilityFunc(visible);
-
-  glutMainLoop();
-  return 0;             /* ANSI C requires main to return int. */
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/geartrain.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/geartrain.c
deleted file mode 100644
index 3feb2a052..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/geartrain.c
+++ /dev/null
@@ -1,1073 +0,0 @@
-
-/*
- * GearTrain Simulator * Version:  1.00
- *
- * Copyright (C) 1999  Shobhan Kumar Dutta  All Rights Reserved.
- * <skdutta@del3.vsnl.net.in>
- *
- * 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
- * SHOBHAN KUMAR DUTTA 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.
- */
-
-
-#include <math.h>
-#include <stdlib.h>
-#include <GL/glut.h>
-#include <string.h>
-#include <stdio.h>
-
-#ifndef min
-#define min(x, y) ( x < y ? x : y )
-#endif
-
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif	/*  */
-typedef GLfloat TDA[4];
-
-TDA background;
-
-
-struct AXLE
-  {
-    char name[20];
-      GLint id;
-      GLfloat radius;
-      GLint axis;
-      TDA color;
-      TDA position;
-      GLfloat length;
-      GLint motored;
-      GLfloat angular_velocity;
-      GLint direction;
-  };
-
-
-struct GEAR
-  {
-    char name[20];
-    char type[7];
-      GLint face;
-      GLint id;
-      GLfloat radius;
-      GLfloat width;
-      GLint teeth;
-      GLfloat tooth_depth;
-      GLfloat angle;
-      GLfloat angular_velocity;
-      TDA color;
-      GLint relative_position;
-      TDA position;
-    char axle_name[20];
-      GLint axis;
-      GLint direction;
-      GLint motored;
-  };
-
-
-struct BELT
-  {
-    char name[20];
-      GLint id;
-    char gear1_name[20];
-    char gear2_name[20];
-  };
-
-
-FILE * mainfile;
-struct GEAR g[10];
-struct AXLE a[10];
-struct BELT b[10];
-int number_of_gears;
-int number_of_axles;
-int number_of_belts;
-
-
-char Buf1[256], Buf2[256], Buf3[256], Buf4[256], Buf5[256];
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-
-#ifndef _WIN32
-static void
-strset (char buf[], char ch)
-{
-    int i;
-    for (i = 0; i < strlen (buf); i++)
-      buf[i] = ch;
-}
-#endif
-
-
-static void
-Clear_Buffers ()
-{
-    strset (Buf1, 0);
-    strset (Buf2, 0);
-    strset (Buf3, 0);
-    strset (Buf4, 0);
-    strset (Buf5, 0);
-}
-
-
-static void
-LoadTriplet (TDA A)
-{
-    Clear_Buffers ();
-    fscanf (mainfile, "%s %s %s %s", Buf1, Buf2, Buf3, Buf4);
-    A[0] = atof (Buf2);
-    A[1] = atof (Buf3);
-    A[2] = atof (Buf4);
-}
-
-
-static void
-LoadReal (float *a)
-{
-    Clear_Buffers ();
-    fscanf (mainfile, "%s %s", Buf1, Buf2);
-    *a = atof (Buf2);
-}
-
-
-static void
-LoadInteger (int *a)
-{
-    Clear_Buffers ();
-    fscanf (mainfile, "%s %s", Buf1, Buf2);
-    *a = atoi (Buf2);
-}
-
-
-static void
-LoadText (char *a)
-{
-    Clear_Buffers ();
-    fscanf (mainfile, "%s %s", Buf1, Buf2);
-    strcpy (a, Buf2);
-}
-
-
-static void
-getdata (char filename[])
-{
-    int gear_count = 0, axle_count = 0, belt_count = 0, i;
-
-    mainfile = fopen (filename, "r");
-    if (!mainfile) {
-       printf("Error: couldn't open %s\n", filename);
-       exit(-1);
-    }
-
-    do
-    {
-	Clear_Buffers ();
-	fscanf (mainfile, "%s", Buf1);
-	if (ferror (mainfile))
-	{
-	    printf ("\nError opening file !\n");
-	    exit (1);
-	}
-
-	if (!(strcmp (Buf1, "BACKGROUND")))
-	  LoadTriplet (background);
-
-	if (!(strcmp (Buf1, "ANAME")))
-	{
-	    LoadText (a[axle_count].name);
-	    axle_count++;
-	}
-
-	if (!(strcmp (Buf1, "ARADIUS")))
-	  LoadReal (&a[axle_count - 1].radius);
-
-	if (!(strcmp (Buf1, "AAXIS")))
-	  LoadInteger (&a[axle_count - 1].axis);
-
-	if (!(strcmp (Buf1, "ACOLOR")))
-	  LoadTriplet (a[axle_count - 1].color);
-
-	if (!(strcmp (Buf1, "APOSITION")))
-	  LoadTriplet (a[axle_count - 1].position);
-
-	if (!(strcmp (Buf1, "ALENGTH")))
-	  LoadReal (&a[axle_count - 1].length);
-
-	if (!(strcmp (Buf1, "AMOTORED")))
-	  LoadInteger (&a[axle_count - 1].motored);
-
-	if (!(strcmp (Buf1, "AANGULARVELOCITY")))
-	  LoadReal (&a[axle_count - 1].angular_velocity);
-
-	if (!(strcmp (Buf1, "ADIRECTION")))
-	  LoadInteger (&a[axle_count - 1].direction);
-
-	if (!(strcmp (Buf1, "GNAME")))
-	{
-	    LoadText (g[gear_count].name);
-	    gear_count++;
-	}
-
-	if (!(strcmp (Buf1, "GTYPE")))
-	  LoadText (g[gear_count - 1].type);
-
-	if (!(strcmp (Buf1, "GFACE")))
-	  LoadInteger (&g[gear_count - 1].face);
-
-	if (!(strcmp (Buf1, "GRADIUS")))
-	  LoadReal (&g[gear_count - 1].radius);
-
-	if (!(strcmp (Buf1, "GWIDTH")))
-	  LoadReal (&g[gear_count - 1].width);
-
-	if (!(strcmp (Buf1, "GTEETH")))
-	  LoadInteger (&g[gear_count - 1].teeth);
-
-	if (!(strcmp (Buf1, "GTOOTHDEPTH")))
-	  LoadReal (&g[gear_count - 1].tooth_depth);
-
-	if (!(strcmp (Buf1, "GCOLOR")))
-	  LoadTriplet (g[gear_count - 1].color);
-
-	if (!(strcmp (Buf1, "GAXLE")))
-	  LoadText (g[gear_count - 1].axle_name);
-
-	if (!(strcmp (Buf1, "GPOSITION")))
-	  LoadInteger (&g[gear_count - 1].relative_position);
-
-	if (!(strcmp (Buf1, "BELTNAME")))
-	{
-	    LoadText (b[belt_count].name);
-	    belt_count++;
-	}
-
-	if (!(strcmp (Buf1, "GEAR1NAME")))
-	  LoadText (b[belt_count - 1].gear1_name);
-
-	if (!(strcmp (Buf1, "GEAR2NAME")))
-	  LoadText (b[belt_count - 1].gear2_name);
-    }
-
-    while (Buf1[0] != 0);
-
-    for (i = 0; i < number_of_gears; i++)
-    {
-	g[i].axis = -1;
-	g[i].direction = 0;
-	g[i].angular_velocity = 0.0;
-    }
-
-    number_of_gears = gear_count;
-    number_of_axles = axle_count;
-    number_of_belts = belt_count;
-    fclose (mainfile);
-}
-
-
-static void
-axle (GLint j, GLfloat radius, GLfloat length)
-{
-    GLfloat angle, rad, incr = 10.0 * M_PI / 180.0;
-
-    /* draw main cylinder */
-    glBegin (GL_QUADS);
-    for (angle = 0.0; angle < 360.0; angle += 5.0)
-    {
-	rad = angle * M_PI / 180.0;
-	glNormal3f (cos (rad), sin (rad), 0.0);
-	glVertex3f (radius * cos (rad), radius * sin (rad), length / 2);
-	glVertex3f (radius * cos (rad), radius * sin (rad), -length / 2);
-	glVertex3f (radius * cos (rad + incr), radius * sin (rad + incr), -length / 2);
-	glVertex3f (radius * cos (rad + incr), radius * sin (rad + incr), length / 2);
-    }
-    glEnd ();
-
-    /* draw front face */
-    glNormal3f (0.0, 0.0, 1.0);
-    glBegin (GL_TRIANGLES);
-    for (angle = 0.0; angle < 360.0; angle += 5.0)
-    {
-	rad = angle * M_PI / 180.0;
-	glVertex3f (0.0, 0.0, length / 2);
-      	glVertex3f (radius * cos (rad), radius * sin (rad), length / 2);
-	glVertex3f (radius * cos (rad + incr), radius * sin (rad + incr), length / 2);
-	glVertex3f (0.0, 0.0, length / 2);
-    }
-    glEnd ();
-
-    /* draw back face */
-    glNormal3f (0.0, 0.0, -1.0);
-    glBegin (GL_TRIANGLES);
-    for (angle = 0.0; angle <= 360.0; angle += 5.0)
-    {
-	rad = angle * M_PI / 180.0;
-	glVertex3f (0.0, 0.0, -length / 2);
-	glVertex3f (radius * cos (rad), radius * sin (rad), -length / 2);
-	glVertex3f (radius * cos (rad + incr), radius * sin (rad + incr), -length / 2);
-	glVertex3f (0.0, 0.0, -length / 2);
-    }
-    glEnd ();
-}
-
-
-
-static void
-gear (GLint j, char type[], GLfloat radius, GLfloat width,
-      GLint teeth, GLfloat tooth_depth)
-{
-    GLint i;
-    GLfloat r1, r2;
-    GLfloat angle, da;
-    GLfloat u, v, len, fraction = 0.5;
-    GLfloat n = 1.0;
-
-    r1 = radius - tooth_depth;
-    r2 = radius;
-
-    da = 2.0 * M_PI / teeth / 4.0;
-    if (!g[j].face)
-    {
-	fraction = -0.5;
-	n = -1.0;
-    }
-    if (!(strcmp (type, "NORMAL")))
-    {
-	fraction = 0.5;
-	n = 1.0;
-    }
-
-    /* draw front face */
-    if (!(strcmp (type, "NORMAL")))
-    {
-	glNormal3f (0.0, 0.0, 1.0 * n);
-	glBegin (GL_QUAD_STRIP);
-	for (i = 0; i <= teeth; i++)
-	{
-	    angle = i * 2.0 * M_PI / teeth;
-	    glVertex3f (0.0, 0.0, width * fraction);
-	    glVertex3f (r1 * cos (angle), r1 * sin (angle), width * fraction);
-	    glVertex3f (0.0, 0.0, width * fraction);
-	    glVertex3f (r1 * cos (angle + 3 * da), r1 * sin (angle + 3 * da), width * fraction);
-	}
-	glEnd ();
-    }
-    else
-    {
-	glNormal3f (0.0, 0.0, 1.0 * n);
-	glBegin (GL_QUAD_STRIP);
-	for (i = 0; i <= teeth; i++)
-	{
-	    angle = i * 2.0 * M_PI / teeth;
-	    glVertex3f (0.0, 0.0, width * fraction);
-	    glVertex3f ((r2 - width) * cos (angle), (r2 - width) * sin (angle), width * fraction);
-	    glVertex3f (0.0, 0.0, width * fraction);
-	    glVertex3f ((r2 - width) * cos (angle + 3 * da), (r2 - width) * sin (angle + 3 * da), width * fraction);
-	}
-	glEnd ();
-    }
-
-    /* draw front sides of teeth */
-    if (!(strcmp (type, "NORMAL")))
-    {
-	glNormal3f (0.0, 0.0, 1.0 * n);
-	glBegin (GL_QUADS);
-	da = 2.0 * M_PI / teeth / 4.0;
-	for (i = 0; i < teeth; i++)
-	{
-	    angle = i * 2.0 * M_PI / teeth;
-	    glVertex3f (r1 * cos (angle), r1 * sin (angle), width * fraction);
-	    glVertex3f (r2 * cos (angle + da), r2 * sin (angle + da), width * fraction);
-	    glVertex3f (r2 * cos (angle + 2 * da), r2 * sin (angle + 2 * da), width * fraction);
-	    glVertex3f (r1 * cos (angle + 3 * da), r1 * sin (angle + 3 * da), width * fraction);
-	}
-	glEnd ();
-    }
-
-    glNormal3f (0.0, 0.0, -1.0 * n);
-
-    /* draw back face */
-    glBegin (GL_QUAD_STRIP);
-    for (i = 0; i <= teeth; i++)
-    {
-	angle = i * 2.0 * M_PI / teeth;
-	glVertex3f (r1 * cos (angle), r1 * sin (angle), -width * fraction);
-	glVertex3f (0.0, 0.0, -width * fraction);
-	glVertex3f (r1 * cos (angle + 3 * da), r1 * sin (angle + 3 * da), -width * fraction);
-	glVertex3f (0.0, 0.0, -width * fraction);
-    }
-    glEnd ();
-
-    /* draw back sides of teeth */
-    glNormal3f (0.0, 0.0, -1.0 * n);
-    glBegin (GL_QUADS);
-    da = 2.0 * M_PI / teeth / 4.0;
-    for (i = 0; i < teeth; i++)
-    {
-	angle = i * 2.0 * M_PI / teeth;
-	glVertex3f (r1 * cos (angle + 3 * da), r1 * sin (angle + 3 * da), -width * fraction);
-	glVertex3f (r2 * cos (angle + 2 * da), r2 * sin (angle + 2 * da), -width * fraction);
-	glVertex3f (r2 * cos (angle + da), r2 * sin (angle + da), -width * fraction);
-	glVertex3f (r1 * cos (angle), r1 * sin (angle), -width * fraction);
-    }
-    glEnd ();
-
-
-    /* draw outward faces of teeth */
-    if (!(strcmp (type, "NORMAL")))
-    {
-	glBegin (GL_QUAD_STRIP);
-	for (i = 0; i < teeth; i++)
-	{
-	    angle = i * 2.0 * M_PI / teeth;
-
-	    glVertex3f (r1 * cos (angle), r1 * sin (angle), width * fraction);
-	    glVertex3f (r1 * cos (angle), r1 * sin (angle), -width * fraction);
-	    u = r2 * cos (angle + da) - r1 * cos (angle);
-	    v = r2 * sin (angle + da) - r1 * sin (angle);
-	    len = sqrt (u * u + v * v);
-	    u /= len;
-	    v /= len;
-	    glNormal3f (v, -u, 0.0);
-	    glVertex3f (r2 * cos (angle + da), r2 * sin (angle + da), width * fraction);
-	    glVertex3f (r2 * cos (angle + da), r2 * sin (angle + da), -width * fraction);
-	    glNormal3f (cos (angle), sin (angle), 0.0);
-	    glVertex3f (r2 * cos (angle + 2 * da), r2 * sin (angle + 2 * da), width * fraction);
-	    glVertex3f (r2 * cos (angle + 2 * da), r2 * sin (angle + 2 * da), -width * fraction);
-	    u = r1 * cos (angle + 3 * da) - r2 * cos (angle + 2 * da);
-	    v = r1 * sin (angle + 3 * da) - r2 * sin (angle + 2 * da);
-	    glNormal3f (v, -u, 0.0);
-	    glVertex3f (r1 * cos (angle + 3 * da), r1 * sin (angle + 3 * da), width * fraction);
-	    glVertex3f (r1 * cos (angle + 3 * da), r1 * sin (angle + 3 * da), -width * fraction);
-	    glNormal3f (cos (angle), sin (angle), 0.0);
-	}
-    }
-    else
-    {
-	glBegin (GL_QUAD_STRIP);
-	for (i = 0; i < teeth; i++)
-	{
-	    angle = i * 2.0 * M_PI / teeth;
-	    glVertex3f (r1 * cos (angle), r1 * sin (angle), width * fraction);
-	    glVertex3f (r1 * cos (angle), r1 * sin (angle), -width * fraction);
-	    u = r2 * cos (angle + da) - r1 * cos (angle);
-	    v = r2 * sin (angle + da) - r1 * sin (angle);
-	    len = sqrt (u * u + v * v);
-	    u /= len;
-	    v /= len;
-	    glNormal3f (v, -u, 0.0);
-	    glVertex3f ((r2 - width) * cos (angle + da), (r2 - width) * sin (angle + da), width * fraction);
-	    glVertex3f (r2 * cos (angle + da), r2 * sin (angle + da), -width * fraction);
-	    glNormal3f (cos (angle), sin (angle), n);
-	    glVertex3f ((r2 - width) * cos (angle + 2 * da), (r2 - width) * sin (angle + 2 * da), width * fraction);
-	    glVertex3f (r2 * cos (angle + 2 * da), r2 * sin (angle + 2 * da), -width * fraction);
-	    u = r1 * cos (angle + 3 * da) - r2 * cos (angle + 2 * da);
-	    v = r1 * sin (angle + 3 * da) - r2 * sin (angle + 2 * da);
-	    glNormal3f (v, -u, 0.0);
-	    glVertex3f (r1 * cos (angle + 3 * da), r1 * sin (angle + 3 * da), width * fraction);
-	    glVertex3f (r1 * cos (angle + 3 * da), r1 * sin (angle + 3 * da), -width * fraction);
-	    glNormal3f (cos (angle), sin (angle), n);
-	}
-    }
-
-    glVertex3f (r1 * cos (0), r1 * sin (0), width * fraction);
-    glVertex3f (r1 * cos (0), r1 * sin (0), -width * fraction);
-    glEnd ();
-}
-
-
-static void
-belt (struct GEAR g1, struct GEAR g2)
-{
-    GLfloat D, alpha, phi, angle, incr, width;
-    GLint indexes[3] =
-    {
-       0, 0, 0
-    };
-
-    GLfloat col[3] =
-    {
-       0.0, 0.0, 0.0
-    };
-
-    width = min (g1.width, g2.width);
-    D = sqrt (pow (g1.position[0] - g2.position[0], 2) + pow (g1.position[1] - g2.position[1], 2) + pow (g1.position[2] - g2.position[2], 2));
-    alpha = acos ((g2.position[0] - g1.position[0]) / D);
-    phi = acos ((g1.radius - g2.radius) / D);
-    glBegin (GL_QUADS);
-    glColor3fv (col);
-    glMaterialiv (GL_FRONT, GL_COLOR_INDEXES, indexes);
-    incr = 1.2 * 360.0 / g1.teeth * M_PI / 180.00;
-    for (angle = alpha + phi; angle <= 2 * M_PI - phi + alpha; angle += 360.0 / g1.teeth * M_PI / 180.00)
-    {
-	glNormal3f (cos (angle), sin (angle), 0.0);
-	glVertex3f (g1.radius * cos (angle), g1.radius * sin (angle), width * 0.5);
-	glVertex3f (g1.radius * cos (angle), g1.radius * sin (angle), -width * 0.5);
-	glVertex3f (g1.radius * cos (angle + incr), g1.radius * sin (angle + incr), -width * 0.5);
-	glVertex3f (g1.radius * cos (angle + incr), g1.radius * sin (angle + incr), width * 0.5);
-    }
-    glEnd ();
-    glBegin (GL_QUADS);
-    glColor3fv (col);
-    glMaterialiv (GL_FRONT, GL_COLOR_INDEXES, indexes);
-    incr = 1.2 * 360.0 / g2.teeth * M_PI / 180.00;
-    for (angle = -phi + alpha; angle <= phi + alpha; angle += 360.0 / g1.teeth * M_PI / 180.0)
-    {
-	glNormal3f (cos (angle), sin (angle), 0.0);
-	glVertex3f (g2.radius * cos (angle) + g2.position[0] - g1.position[0], g2.radius * sin (angle) + g2.position[1] - g1.position[1], width * 0.5);
-	glVertex3f (g2.radius * cos (angle) + g2.position[0] - g1.position[0], g2.radius * sin (angle) + g2.position[1] - g1.position[1], width * -0.5);
-	glVertex3f (g2.radius * cos (angle + incr) + g2.position[0] - g1.position[0], g2.radius * sin (angle + incr) + g2.position[1] - g1.position[1], width * -0.5);
-	glVertex3f (g2.radius * cos (angle + incr) + g2.position[0] - g1.position[0], g2.radius * sin (angle + incr) + g2.position[1] - g1.position[1], width * 0.5);
-    }
-    glEnd ();
-
-    glBegin (GL_QUADS);
-    glColor3fv (col);
-    glMaterialiv (GL_FRONT, GL_COLOR_INDEXES, indexes);
-    glVertex3f (g1.radius * cos (alpha + phi), g1.radius * sin (alpha + phi), width * 0.5);
-    glVertex3f (g1.radius * cos (alpha + phi), g1.radius * sin (alpha + phi), width * -0.5);
-    glVertex3f (g2.radius * cos (alpha + phi) + g2.position[0] - g1.position[0], g2.radius * sin (alpha + phi) + g2.position[1] - g1.position[1], width * -0.5);
-    glVertex3f (g2.radius * cos (alpha + phi) + g2.position[0] - g1.position[0], g2.radius * sin (alpha + phi) + g2.position[1] - g1.position[1], width * 0.5);
-    glVertex3f (g1.radius * cos (alpha - phi), g1.radius * sin (alpha - phi), width * 0.5);
-    glVertex3f (g1.radius * cos (alpha - phi), g1.radius * sin (alpha - phi), width * -0.5);
-    glVertex3f (g2.radius * cos (alpha - phi) + g2.position[0] - g1.position[0], g2.radius * sin (alpha - phi) + g2.position[1] - g1.position[1], width * -0.5);
-    glVertex3f (g2.radius * cos (alpha - phi) + g2.position[0] - g1.position[0], g2.radius * sin (alpha - phi) + g2.position[1] - g1.position[1], width * 0.5);
-    glEnd ();
-}
-
-
-static int
-axle_find (char axle_name[])
-{
-    int i;
-
-    for (i = 0; i < number_of_axles; i++)
-    {
-	if (!(strcmp (axle_name, a[i].name)))
-           break;
-    }
-    return i;
-}
-
-
-static int
-gear_find (char gear_name[])
-{
-    int i;
-
-    for (i = 0; i < number_of_gears; i++)
-    {
-	if (!(strcmp (gear_name, g[i].name)))
-           break;
-    }
-    return i;
-}
-
-
-static void
-process ()
-{
-    GLfloat x, y, z, D, dist;
-    GLint axle_index, i, j, g1, g2, k;
-    char error[80];
-
-    for (i = 0; i < number_of_gears; i++)
-    {
-	x = 0.0;
-	y = 0.0;
-	z = 0.0;
-	axle_index = axle_find (g[i].axle_name);
-	g[i].axis = a[axle_index].axis;
-	g[i].motored = a[axle_index].motored;
-	if (a[axle_index].motored)
-	{
-	    g[i].direction = a[axle_index].direction;
-	    g[i].angular_velocity = a[axle_index].angular_velocity;
-	}
-	if (g[i].axis == 0)
-           x = 1.0;
-        else if (g[i].axis == 1)
-           y = 1.0;
-        else
-           z = 1.0;
-
-	g[i].position[0] = a[axle_index].position[0] + x * g[i].relative_position;
-	g[i].position[1] = a[axle_index].position[1] + y * g[i].relative_position;
-	g[i].position[2] = a[axle_index].position[2] + z * g[i].relative_position;
-    }
-
-    for (k = 0; k < number_of_axles; k++)
-    {
-	for (i = 0; i < number_of_gears - 1; i++)
-	{
-	    for (j = 0; j < number_of_gears; j++)
-	    {
-		if (!(strcmp (g[i].type, g[j].type)) && (!(strcmp (g[i].type, "NORMAL"))) && ((strcmp (g[i].axle_name, g[j].axle_name) != 0)) && (g[i].axis == g[j].axis))
-		{
-		    D = sqrt (pow (g[i].position[0] - g[j].position[0], 2) + pow (g[i].position[1] - g[j].position[1], 2) + pow (g[i].position[2] - g[j].position[2], 2));
-		    if (D < 1.1 * (g[i].radius - g[i].tooth_depth + g[j].radius - g[j].tooth_depth))
-		    {
-			printf (error, "Gear %s and %s are too close to each other.", g[i].name, g[j].name);
-
-                        /*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
-			exit (1);
-		    }
-
-		    if (g[i].axis == 0)
-		    {
-			dist = g[i].position[0] - g[j].position[0];
-		    }
-		    else if (g[i].axis == 1)
-		    {
-			dist = g[i].position[1] - g[j].position[1];
-		    }
-		    else
-                       dist = g[i].position[2] - g[j].position[2];
-
-		    dist = fabs (dist);
-
-		    if (dist < (g[i].width / 2 + g[j].width / 2))
-		    {
-			if ((g[i].motored) && (!(g[j].motored)) && (D < 0.95 * (g[i].radius + g[j].radius)))
-			{
-			    axle_index = axle_find (g[j].axle_name);
-			    if ((a[axle_index].direction != 0) && (g[j].angular_velocity != g[i].angular_velocity * g[i].teeth / g[j].teeth * g[i].radius / g[j].radius))
-			    {
-				printf (error, "Error in tooth linkage of gears %s and %s.", g[i].name, g[j].name);
-                                /*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
-				exit (1);
-			    }
-
-			    g[j].motored = (a[axle_index].motored = 1);
-			    g[j].direction = (a[axle_index].direction = -g[i].direction);
-			    a[axle_index].angular_velocity = g[i].angular_velocity * g[i].teeth / g[j].teeth;
-			    g[j].angular_velocity = (a[axle_index].angular_velocity *= g[i].radius / g[j].radius);
-			}
-
-			if ((!(g[i].motored)) && (g[j].motored) && (D < 0.95 * (g[i].radius + g[j].radius)))
-			{
-			    axle_index = axle_find (g[i].axle_name);
-			    if ((a[axle_index].direction != 0) && (g[i].angular_velocity != g[j].angular_velocity * g[j].teeth / g[i].teeth * g[j].radius / g[i].radius))
-			    {
-				printf (error, "Error in tooth linkage of gears %s and %s.", g[i].name, g[j].name);
-                                /*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
-				exit (1);
-			    }
-
-			    g[i].motored = (a[axle_index].motored = 1);
-			    g[i].direction = (a[axle_index].direction = -g[j].direction);
-			    a[axle_index].angular_velocity = g[j].angular_velocity * g[j].teeth / g[i].teeth;
-			    g[i].angular_velocity = (a[axle_index].angular_velocity *= g[j].radius / g[i].radius);
-
-			}
-		    }
-		}
-
-		if (!(strcmp (g[i].type, g[j].type)) && (!(strcmp (g[i].type, "BEVEL"))) && ((strcmp (g[i].axle_name, g[j].axle_name) != 0)) && (g[i].axis != g[j].axis))
-		{
-		    D = sqrt (pow (g[i].position[0] - g[j].position[0], 2) + pow (g[i].position[1] - g[j].position[1], 2) + pow (g[i].position[2] - g[j].position[2], 2));
-		    if ((g[i].motored) && (!(g[j].motored)) && (D < 0.95 * sqrt (g[i].radius * g[i].radius + g[j].radius * g[j].radius)))
-		    {
-			axle_index = axle_find (g[j].axle_name);
-			if ((a[axle_index].direction != 0) && (g[j].angular_velocity != g[i].angular_velocity * g[i].teeth / g[j].teeth * g[i].radius / g[j].radius))
-			{
-			    printf (error, "Error in tooth linkage of gears %s and %s.", g[i].name, g[j].name);
-                            /*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
-			    exit (1);
-			}
-			g[j].motored = (a[axle_index].motored = 1);
-			g[j].direction = (a[axle_index].direction = -g[i].direction);
-			a[axle_index].angular_velocity = g[i].angular_velocity * g[i].teeth / g[j].teeth;
-			g[j].angular_velocity = (a[axle_index].angular_velocity *= g[i].radius / g[j].radius);
-		    }
-
-
-		    if ((!(g[i].motored)) && (g[j].motored) && (D < 0.95 * sqrt (g[i].radius * g[i].radius + g[j].radius * g[j].radius)))
-		    {
-			axle_index = axle_find (g[i].axle_name);
-			if ((a[axle_index].direction != 0) && (g[i].angular_velocity != g[j].angular_velocity * g[j].teeth / g[i].teeth * g[j].radius / g[i].radius))
-			{
-			    printf (error, "Error in tooth linkage of gears %s and %s.", g[i].name, g[j].name);
-                            /*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
-			    exit (1);
-			}
-			g[i].motored = (a[axle_index].motored = 1);
-			g[i].direction = (a[axle_index].direction = -g[j].direction);
-			a[axle_index].angular_velocity = g[j].angular_velocity * g[j].teeth / g[i].teeth;
-			g[i].angular_velocity = (a[axle_index].angular_velocity *= g[j].radius / g[i].radius);
-		    }
-		}
-	    }
-	}
-
-	for (i = 0; i < number_of_gears; i++)
-	{
-	    axle_index = axle_find (g[i].axle_name);
-	    g[i].motored = a[axle_index].motored;
-	    if (a[axle_index].motored)
-	    {
-		g[i].direction = a[axle_index].direction;
-		g[i].angular_velocity = a[axle_index].angular_velocity;
-	    }
-	}
-
-	for (i = 0; i < number_of_belts; i++)
-	{
-	    g1 = gear_find (b[i].gear1_name);
-	    g2 = gear_find (b[i].gear2_name);
-	    D = sqrt (pow (g[g1].position[0] - g[g2].position[0], 2) + pow (g[g1].position[1] - g[g2].position[1], 2) + pow (g[g1].position[2] - g[g2].position[2], 2));
-	    if (!((g[g1].axis == g[g2].axis) && (!strcmp (g[g1].type, g[g2].type)) && (!strcmp (g[g1].type, "NORMAL"))))
-	    {
-		printf (error, "Belt %s invalid.", b[i].name);
-                /*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
-		exit (1);
-	    }
-
-	    if ((g[g1].axis == g[g2].axis) && (!strcmp (g[g1].type, g[g2].type)) && (!strcmp (g[g1].type, "NORMAL")))
-	    {
-	      /*
-	         if((g[g1].motored)&&(g[g2].motored))
-	         if(g[g2].angular_velocity!=(g[g1].angular_velocity*g[g1].radius/g[g2].radius))
-	         {
-	         printf(error,"Error in belt linkage of gears %s and %s".,g[g1].name,g[g2].name);
-	         MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);
-	         exit(1);
-	         }
-              */
-               if (g[g1].axis == 0)
-                  {
-		    dist = g[g1].position[0] - g[g2].position[0];
-		}
-		else if (g[i].axis == 1)
-		{
-		    dist = g[g1].position[1] - g[g2].position[1];
-		}
-		else
-                   dist = g[g1].position[2] - g[g2].position[2];
-
-		dist = fabs (dist);
-
-		if (dist > (g[g1].width / 2 + g[g2].width / 2))
-		{
-		    printf (error, "Belt %s invalid.", b[i].name);
-                    /*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
-		    exit (1);
-		}
-
-		if (dist < (g[g1].width / 2 + g[g2].width / 2))
-		{
-		    if (D < g[g1].radius + g[g2].radius)
-		    {
-			printf (error, "Gears %s and %s too close to be linked with belts", g[g1].name, g[g2].name);
-                        /*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
-			exit (1);
-		    }
-
-		    if ((g[g1].motored) && (!(g[g2].motored)))
-		    {
-			axle_index = axle_find (g[g2].axle_name);
-			g[g2].motored = (a[axle_index].motored = 1);
-			g[g2].direction = (a[axle_index].direction = g[g1].direction);
-			g[g2].angular_velocity = (a[axle_index].angular_velocity = g[g1].angular_velocity * g[g1].radius / g[g2].radius);
-		    }
-
-		    if ((!(g[g1].motored)) && (g[g2].motored))
-		    {
-			axle_index = axle_find (g[g1].axle_name);
-			g[g1].motored = (a[axle_index].motored = 1);
-			g[g1].direction = (a[axle_index].direction = g[g2].direction);
-			g[g1].angular_velocity = (a[axle_index].angular_velocity = g[g2].angular_velocity * g[g2].radius / g[g1].radius);
-		    }
-		}
-	    }
-	}
-
-	for (i = 0; i < number_of_gears; i++)
-	{
-	    axle_index = axle_find (g[i].axle_name);
-	    g[i].motored = a[axle_index].motored;
-	    if (a[axle_index].motored)
-	    {
-		g[i].direction = a[axle_index].direction;
-		g[i].angular_velocity = a[axle_index].angular_velocity;
-	    }
-	}
-    }
-}
-
-
-
-GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 10.0;
-
-
-static void
-draw (void)
-{
-    int i;
-    GLfloat x, y, z;
-    int index;
-
-    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-    glPushMatrix ();
-    glRotatef (view_rotx, 1.0, 0.0, 0.0);
-    glRotatef (view_roty, 0.0, 1.0, 0.0);
-    glRotatef (view_rotz, 0.0, 0.0, 1.0);
-
-    for (i = 0; i < number_of_gears; i++)
-    {
-	x = 0.0;
-	y = 0.0;
-	z = 0.0;
-	glPushMatrix ();
-/*glTranslatef( -3.0, -2.0, 0.0 );*/
-	glTranslatef (g[i].position[0], g[i].position[1], g[i].position[2]);
-	if (g[i].axis == 0)
-           y = 1.0;
-        else if (g[i].axis == 1)
-           x = 1.0;
-        else
-           z = 1.0;
-
-	if (z != 1.0)
-           glRotatef (90.0, x, y, z);
-
-	glRotatef (g[i].direction * g[i].angle, 0.0, 0.0, 1.0);
-	glCallList (g[i].id);
-	glPopMatrix ();
-    }
-
-    for (i = 0; i < number_of_axles; i++)
-    {
-	x = 0.0;
-	y = 0.0;
-	z = 0.0;
-	glPushMatrix ();
-	glTranslatef (a[i].position[0], a[i].position[1], a[i].position[2]);
-	if (a[i].axis == 0)
-           y = 1.0;
-        else if (a[i].axis == 1)
-           x = 1.0;
-        else
-           z = 1.0;
-
-	if (z != 1.0)
-           glRotatef (90.0, x, y, z);
-
-	glCallList (a[i].id);
-	glPopMatrix ();
-    }
-
-    for (i = 0; i < number_of_belts; i++)
-    {
-	x = 0.0;
-	y = 0.0;
-	z = 0.0;
-	glPushMatrix ();
-	index = gear_find (b[i].gear1_name);
-	glTranslatef (g[index].position[0], g[index].position[1], g[index].position[2]);
-	if (g[index].axis == 0)
-           y = 1.0;
-        else if (g[index].axis == 1)
-           x = 1.0;
-        else
-           z = 1.0;
-
-	if (z != 1.0)
-           glRotatef (90.0, x, y, z);
-
-	glCallList (b[i].id);
-	glPopMatrix ();
-    }
-
-    glPopMatrix ();
-    glutSwapBuffers ();
-
-    {
-	GLint t = glutGet(GLUT_ELAPSED_TIME);
-	Frames++;
-	if (t - T0 >= 5000) {
-	    GLfloat seconds = (t - T0) / 1000.0;
-	    GLfloat fps = Frames / seconds;
-	    printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps);
-	    T0 = t;
-	    Frames = 0;
-	}
-    }
-}
-
-
-static void
-idle (void)
-{
-    int i;
-    static double t0 = -1.;
-    double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-    if (t0 < 0.0)
-       t0 = t;
-    dt = t - t0;
-    t0 = t;
-    for (i = 0; i < number_of_gears; i++)
-      g[i].angle += g[i].angular_velocity * dt;
-    glutPostRedisplay();
-}
-
-
-
-
-/* change view angle, exit upon ESC */
-static void
-key (unsigned char k, int x, int y)
-{
-    switch (k)
-    {
-    case 'x':
-	view_rotx += 5.0;
-        break;
-    case 'X':
-	view_rotx -= 5.0;
-        break;
-    case 'y':
-	view_roty += 5.0;
-        break;
-    case 'Y':
-	view_roty -= 5.0;
-        break;
-    case 'z':
-	view_rotz += 5.0;
-        break;
-    case 'Z':
-	view_rotz -= 5.0;
-        break;
-    case 0x1B:
-	exit(0);
-    }
-}
-
-
-
-
-/* new window size or exposure */
-static void
-reshape (int width, int height)
-{
-    glViewport (0, 0, (GLint) width, (GLint) height);
-    glMatrixMode (GL_PROJECTION);
-    glLoadIdentity ();
-    if (width > height)
-    {
-	GLfloat w = (GLfloat) width / (GLfloat) height;
-	glFrustum (-w, w, -1.0, 1.0, 5.0, 60.0);
-    }
-    else
-    {
-	GLfloat h = (GLfloat) height / (GLfloat) width;
-	glFrustum (-1.0, 1.0, -h, h, 5.0, 60.0);
-    }
-
-    glMatrixMode (GL_MODELVIEW);
-    glLoadIdentity ();
-    glTranslatef (0.0, 0.0, -40.0);
-    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-
-
-static void
-init (void)
-{
-    GLfloat matShine = 20.00F;
-    GLfloat light0Pos[4] =
-    {
-       0.70F, 0.70F, 1.25F, 0.50F
-    };
-    int i;
-
-    glClearColor (background[0], background[1], background[2], 1.0F);
-    glClearIndex ((GLfloat) 0.0);
-
-    glMaterialf (GL_FRONT_AND_BACK, GL_SHININESS, matShine);
-    glLightfv (GL_LIGHT0, GL_POSITION, light0Pos);
-    glEnable (GL_LIGHT0);
-
-    glEnable (GL_LIGHTING);
-    glEnable (GL_DEPTH_TEST);
-    for (i = 0; i < number_of_gears; i++)
-      g[i].angle = 0.0;
-
-    for (i = 0; i < number_of_gears; i++)
-    {
-	g[i].id = glGenLists (1);
-	glNewList (g[i].id, GL_COMPILE);
-	glColor3fv (g[i].color);
-	glMaterialfv (GL_FRONT, GL_SPECULAR, g[i].color);
-	gear (i, g[i].type, g[i].radius, g[i].width, g[i].teeth, g[i].tooth_depth);
-	glEndList ();
-    }
-
-    for (i = 0; i < number_of_axles; i++)
-    {
-	a[i].id = glGenLists (1);
-	glNewList (a[i].id, GL_COMPILE);
-	glColor3fv (a[i].color);
-	glMaterialfv (GL_FRONT, GL_SPECULAR, a[i].color);
-	axle (i, a[i].radius, a[i].length);
-	glEndList ();
-    }
-
-    for (i = 0; i < number_of_belts; i++)
-    {
-	b[i].id = glGenLists (1);
-	glNewList (b[i].id, GL_COMPILE);
-	belt (g[gear_find (b[i].gear1_name)], g[gear_find (b[i].gear2_name)]);
-	glEndList ();
-    }
-
-    glEnable (GL_COLOR_MATERIAL);
-}
-
-
-
-int
-main (int argc, char *argv[])
-{
-    char *file;
-
-    if (argc < 2)
-       file = "geartrain.dat";
-    else
-       file = argv[1];
-
-    glutInitWindowPosition (0, 0);
-    glutInitWindowSize(640,480);
-    glutInitDisplayMode (GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
-
-    if (glutCreateWindow ("Gear Train Simulation") == GL_FALSE)
-      exit (1);
-
-    getdata (file);
-    process ();
-    init ();
-
-    glutDisplayFunc (draw);
-    glutReshapeFunc (reshape);
-    glutKeyboardFunc (key);
-    glutIdleFunc (idle);
-    glutMainLoop ();
-    return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/geartrain.dat b/nx-X11/extras/Mesa_6.4.1/progs/demos/geartrain.dat
deleted file mode 100644
index 374de48bd..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/geartrain.dat
+++ /dev/null
@@ -1,119 +0,0 @@
-BACKGROUND = 0.000 0.500 0.700
-
-ANAME = AXLE1
-ARADIUS = 1.000
-AAXIS = 2
-APOSITION = -7.000 0.000 0.000
-ACOLOR = 0.800 0.500 0.200
-ALENGTH = 6.000
-AMOTORED = 1
-AANGULARVELOCITY = 90.000
-ADIRECTION = 1
-
-ANAME = AXLE2
-ARADIUS = 1.000
-AAXIS = 2
-APOSITION = -3.000 0.000 0.000
-ACOLOR = 0.800 0.500 0.200
-ALENGTH = 12.000
-AMOTORED = 0
-
-ANAME = AXLE3
-ARADIUS = 1.000
-AAXIS = 2
-APOSITION = 1.000 0.000 0.000
-ACOLOR = 0.800 0.500 0.200
-ALENGTH = 6.000
-AMOTORED = 0
-
-ANAME = AXLE4
-ARADIUS = 1.000
-AAXIS = 2
-APOSITION = 8.000 0.000 0.000
-ACOLOR = 0.800 0.500 0.200
-ALENGTH = 18.000
-AMOTORED = 0
-
-ANAME = AXLE5
-ARADIUS = 1.000
-AAXIS = 1
-APOSITION = 8.000 -8.200 -7.400
-ACOLOR = 0.800 0.500 0.200
-ALENGTH = 12.000
-AMOTORED = 0
-
-GNAME = GEAR1
-GTYPE = NORMAL
-GRADIUS = 2.200
-GWIDTH = 3.000
-GTEETH = 40
-GTOOTHDEPTH = 0.500
-GCOLOR = 0.500 0.500 0.500
-GAXLE = AXLE1
-GPOSITION = 0.000
-
-GNAME = GEAR2
-GTYPE = NORMAL
-GRADIUS = 2.200
-GWIDTH = 3.000
-GTEETH = 30
-GTOOTHDEPTH = 0.500
-GCOLOR = 0.500 0.500 0.500
-GAXLE = AXLE2
-GPOSITION = 0.000
-
-GNAME = GEAR3
-GTYPE = NORMAL
-GRADIUS = 2.200
-GWIDTH = 3.000
-GTEETH = 20
-GTOOTHDEPTH = 0.500
-GCOLOR = 0.500 0.500 0.500
-GAXLE = AXLE3
-GPOSITION = 0.000
-
-GNAME = GEAR4
-GTYPE = NORMAL
-GRADIUS = 1.700
-GWIDTH = 1.000
-GTEETH = 20
-GTOOTHDEPTH = 0.500
-GCOLOR = 0.500 0.500 0.500
-GAXLE = AXLE2
-GPOSITION = 5.000
-
-GNAME = GEAR5
-GTYPE = NORMAL
-GRADIUS = 3.000
-GWIDTH = 1.000
-GTEETH = 20
-GTOOTHDEPTH = 0.500
-GCOLOR = 0.500 0.500 0.500
-GAXLE = AXLE4
-GPOSITION = 5.000
-
-GNAME = GEAR6
-GTYPE = BEVEL
-GFACE = 0
-GRADIUS = 4.000
-GWIDTH = 1.000
-GTEETH = 20
-GTOOTHDEPTH = 1.700
-GCOLOR = 0.500 0.500 0.500
-GAXLE = AXLE4
-GPOSITION = -4.000
-
-GNAME = GEAR7
-GTYPE = BEVEL
-GFACE = 0
-GRADIUS = 4.000
-GWIDTH = 1.000
-GTEETH = 20
-GTOOTHDEPTH = 1.700
-GCOLOR = 0.500 0.500 0.500
-GAXLE = AXLE5
-GPOSITION = 5.000
-
-BELTNAME = BELT1
-GEAR1NAME = GEAR5
-GEAR2NAME = GEAR4
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/glinfo.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/glinfo.c
deleted file mode 100644
index a6a747828..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/glinfo.c
+++ /dev/null
@@ -1,32 +0,0 @@
-
-/*
- * Print GL, GLU and GLUT version and extension info
- *
- * Brian Paul  This file in public domain.
- * October 3, 1997
- */
-
-
-#include <stdio.h>
-#include <GL/glut.h>
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitDisplayMode( GLUT_RGB );
-   glutCreateWindow(argv[0]);
-
-   printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
-   printf("GL_EXTENSIONS: %s\n", (char *) glGetString(GL_EXTENSIONS));
-   printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
-   printf("GL_VENDOR: %s\n", (char *) glGetString(GL_VENDOR));
-   printf("GLU_VERSION: %s\n", (char *) gluGetString(GLU_VERSION));
-   printf("GLU_EXTENSIONS: %s\n", (char *) gluGetString(GLU_EXTENSIONS));
-   printf("GLUT_API_VERSION: %d\n", GLUT_API_VERSION);
-#ifdef GLUT_XLIB_IMPLEMENTATION
-   printf("GLUT_XLIB_IMPLEMENTATION: %d\n", GLUT_XLIB_IMPLEMENTATION);
-#endif
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/gloss.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/gloss.c
deleted file mode 100644
index 4e7adc8d4..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/gloss.c
+++ /dev/null
@@ -1,435 +0,0 @@
-
-/*
- * Specular reflection demo.  The specular highlight is modulated by
- * a sphere-mapped texture.  The result is a high-gloss surface.
- * NOTE: you really need hardware acceleration for this.
- * Also note, this technique can't be implemented with multi-texture
- * and separate specular color interpolation because there's no way
- * to indicate that the second texture unit (the reflection map)
- * should modulate the specular color and not the base color.
- * A future multi-texture extension could fix that.
- *
- * Command line options:
- *    -info      print GL implementation information
- *
- *
- * Brian Paul  October 22, 1999  This program is in the public domain.
- */
-
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <GL/glut.h>
-
-#include "readtex.h"
-
-#define SPECULAR_TEXTURE_FILE "../images/reflect.rgb"
-#define BASE_TEXTURE_FILE "../images/tile.rgb"
-
-/* Menu items */
-#define DO_SPEC_TEXTURE 1
-#define OBJECT 2
-#define ANIMATE 3
-#define QUIT 100
-
-/* for convolution */
-#define FILTER_SIZE 7
-
-static GLuint CylinderObj = 0;
-static GLuint TeapotObj = 0;
-static GLuint Object = 0;
-static GLboolean Animate = GL_TRUE;
-
-static GLfloat Xrot = 0.0, Yrot = 0.0, Zrot = 0.0;
-static GLfloat DXrot = 20.0, DYrot = 50.;
-
-static GLfloat Black[4] = { 0, 0, 0, 0 };
-static GLfloat White[4] = { 1, 1, 1, 1 };
-static GLfloat Diffuse[4] = { .3, .3, 1.0, 1.0 };  /* blue */
-static GLfloat Shininess = 6;
-
-static GLuint BaseTexture, SpecularTexture;
-static GLboolean DoSpecTexture = GL_TRUE;
-
-/* performance info */
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-
-static void Idle( void )
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-
-   if (Animate) {
-      Xrot += DXrot*dt;
-      Yrot += DYrot*dt;
-      glutPostRedisplay();
-   }
-}
-
-
-static void Display( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-   glPushMatrix();
-   glRotatef(Xrot, 1.0, 0.0, 0.0);
-   glRotatef(Yrot, 0.0, 1.0, 0.0);
-   glRotatef(Zrot, 0.0, 0.0, 1.0);
-
-   /* First pass: diffuse lighting with base texture */
-   glMaterialfv(GL_FRONT, GL_DIFFUSE, Diffuse);
-   glMaterialfv(GL_FRONT, GL_SPECULAR, Black);
-   glEnable(GL_TEXTURE_2D);
-   glBindTexture(GL_TEXTURE_2D, BaseTexture);
-   glCallList(Object);
-
-   /* Second pass: specular lighting with reflection texture */
-   glEnable(GL_POLYGON_OFFSET_FILL);
-   glBlendFunc(GL_ONE, GL_ONE);  /* add */
-   glEnable(GL_BLEND);
-   glMaterialfv(GL_FRONT, GL_DIFFUSE, Black);
-   glMaterialfv(GL_FRONT, GL_SPECULAR, White);
-   if (DoSpecTexture) {
-      glBindTexture(GL_TEXTURE_2D, SpecularTexture);
-      glEnable(GL_TEXTURE_GEN_S);
-      glEnable(GL_TEXTURE_GEN_T);
-   }
-   else {
-      glDisable(GL_TEXTURE_2D);
-   }
-   glCallList(Object);
-   glDisable(GL_TEXTURE_GEN_S);
-   glDisable(GL_TEXTURE_GEN_T);
-   glDisable(GL_BLEND);
-   glDisable(GL_POLYGON_OFFSET_FILL);
-
-   glPopMatrix();
-
-   glutSwapBuffers();
-
-   if (Animate) {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      Frames++;
-      if (t - T0 >= 5000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-
-static void Reshape( int width, int height )
-{
-   GLfloat h = 30.0;
-   GLfloat w = h * width / height;
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -w, w, -h, h, 150.0, 500.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -380.0 );
-}
-
-
-static void ToggleAnimate(void)
-{
-   Animate = !Animate;
-   if (Animate) {
-      glutIdleFunc( Idle );
-      T0 = glutGet(GLUT_ELAPSED_TIME);
-      Frames = 0;
-   }
-   else {
-      glutIdleFunc( NULL );
-   }
-}
-
-
-static void ModeMenu(int entry)
-{
-   if (entry==ANIMATE) {
-      ToggleAnimate();
-   }
-   else if (entry==DO_SPEC_TEXTURE) {
-      DoSpecTexture = !DoSpecTexture;
-   }
-   else if (entry==OBJECT) {
-      if (Object == TeapotObj)
-         Object = CylinderObj;
-      else
-         Object = TeapotObj;
-   }
-   else if (entry==QUIT) {
-      exit(0);
-   }
-   glutPostRedisplay();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 's':
-         Shininess--;
-         if (Shininess < 0.0)
-            Shininess = 0.0;
-         glMaterialf(GL_FRONT, GL_SHININESS, Shininess);
-         printf("Shininess = %g\n", Shininess);
-         break;
-      case 'S':
-         Shininess++;
-         if (Shininess > 128.0)
-            Shininess = 128.0;
-         glMaterialf(GL_FRONT, GL_SHININESS, Shininess);
-         printf("Shininess = %g\n", Shininess);
-         break;
-      case ' ':
-         ToggleAnimate();
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   float step = 3.0;
-   (void) x;
-   (void) y;
-
-   switch (key) {
-      case GLUT_KEY_UP:
-         Xrot += step;
-         break;
-      case GLUT_KEY_DOWN:
-         Xrot -= step;
-         break;
-      case GLUT_KEY_LEFT:
-         Yrot += step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Yrot -= step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( int argc, char *argv[] )
-{
-   GLboolean convolve = GL_FALSE;
-   int i;
-
-   for (i = 1; i < argc; i++) {
-      if (strcmp(argv[i], "-info")==0) {
-         printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
-         printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
-         printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
-         printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
-      }
-      else if (strcmp(argv[i], "-c")==0) {
-         convolve = GL_TRUE;
-      }
-   }
-
-
-   /* Cylinder object */
-   {
-      static GLfloat height = 100.0;
-      static GLfloat radius = 40.0;
-      static GLint slices = 24;  /* pie slices around Z axis */
-      static GLint stacks = 10;  /* subdivisions along length of cylinder */
-      static GLint rings = 4;    /* rings in the end disks */
-      GLUquadricObj *q = gluNewQuadric();
-      assert(q);
-      gluQuadricTexture(q, GL_TRUE);
-
-      CylinderObj = glGenLists(1);
-      glNewList(CylinderObj, GL_COMPILE);
-
-      glPushMatrix();
-      glTranslatef(0.0, 0.0, -0.5 * height);
-
-      glMatrixMode(GL_TEXTURE);
-      glLoadIdentity();
-      /*glScalef(8.0, 4.0, 2.0);*/
-      glMatrixMode(GL_MODELVIEW);
-
-      /* cylinder */
-      gluQuadricNormals(q, GL_SMOOTH);
-      gluQuadricTexture(q, GL_TRUE);
-      gluCylinder(q, radius, radius, height, slices, stacks);
-
-      /* end cap */
-      glMatrixMode(GL_TEXTURE);
-      glLoadIdentity();
-      glScalef(3.0, 3.0, 1.0);
-      glMatrixMode(GL_MODELVIEW);
-
-      glTranslatef(0.0, 0.0, height);
-      gluDisk(q, 0.0, radius, slices, rings);
-
-      /* other end cap */
-      glTranslatef(0.0, 0.0, -height);
-      gluQuadricOrientation(q, GLU_INSIDE);
-      gluDisk(q, 0.0, radius, slices, rings);
-
-      glPopMatrix();
-
-      glMatrixMode(GL_TEXTURE);
-      glLoadIdentity();
-      glMatrixMode(GL_MODELVIEW);
-
-      glEndList();
-      gluDeleteQuadric(q);
-   }
-
-   /* Teapot */
-   {
-      TeapotObj = glGenLists(1);
-      glNewList(TeapotObj, GL_COMPILE);
-
-      glFrontFace(GL_CW);
-      glutSolidTeapot(40.0);
-      glFrontFace(GL_CCW);
-
-      glEndList();
-   }
-
-   /* show cylinder by default */
-   Object = CylinderObj;
-
-
-   /* lighting */
-   glEnable(GL_LIGHTING);
-   {
-      GLfloat pos[4] = { 3, 3, 3, 1 };
-      glLightfv(GL_LIGHT0, GL_AMBIENT, Black);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE, White);
-      glLightfv(GL_LIGHT0, GL_SPECULAR, White);
-      glLightfv(GL_LIGHT0, GL_POSITION, pos);
-      glEnable(GL_LIGHT0);
-      glMaterialfv(GL_FRONT, GL_AMBIENT, Black);
-      glMaterialf(GL_FRONT, GL_SHININESS, Shininess);
-      glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 1);
-   }
-
-   /* Base texture */
-   glGenTextures(1, &BaseTexture);
-   glBindTexture(GL_TEXTURE_2D, BaseTexture);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   if (!LoadRGBMipmaps(BASE_TEXTURE_FILE, GL_RGB)) {
-      printf("Error: couldn't load texture image file %s\n", BASE_TEXTURE_FILE);
-      exit(1);
-   }
-
-   /* Specular texture */
-   glGenTextures(1, &SpecularTexture);
-   glBindTexture(GL_TEXTURE_2D, SpecularTexture);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-   glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-   if (convolve) {
-      /* use convolution to blur the texture to simulate a dull finish
-       * on the object.
-       */
-      GLubyte *img;
-      GLenum format;
-      GLint w, h;
-      GLfloat filter[FILTER_SIZE][FILTER_SIZE][4];
-
-      for (h = 0; h < FILTER_SIZE; h++) {
-         for (w = 0; w < FILTER_SIZE; w++) {
-            const GLfloat k = 1.0 / (FILTER_SIZE * FILTER_SIZE);
-            filter[h][w][0] = k;
-            filter[h][w][1] = k;
-            filter[h][w][2] = k;
-            filter[h][w][3] = k;
-         }
-      }
-
-      glEnable(GL_CONVOLUTION_2D);
-      glConvolutionParameteri(GL_CONVOLUTION_2D,
-                              GL_CONVOLUTION_BORDER_MODE, GL_CONSTANT_BORDER);
-      glConvolutionFilter2D(GL_CONVOLUTION_2D, GL_RGBA,
-                            FILTER_SIZE, FILTER_SIZE,
-                            GL_RGBA, GL_FLOAT, filter);
-
-      img = LoadRGBImage(SPECULAR_TEXTURE_FILE, &w, &h, &format);
-      if (!img) {
-         printf("Error: couldn't load texture image file %s\n",
-                SPECULAR_TEXTURE_FILE);
-         exit(1);
-      }
-
-      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0,
-                   format, GL_UNSIGNED_BYTE, img);
-      free(img);
-   }
-   else {
-      /* regular path */
-      if (!LoadRGBMipmaps(SPECULAR_TEXTURE_FILE, GL_RGB)) {
-         printf("Error: couldn't load texture image file %s\n",
-                SPECULAR_TEXTURE_FILE);
-         exit(1);
-      }
-   }
-
-   /* misc */
-   glEnable(GL_CULL_FACE);
-   glEnable(GL_TEXTURE_2D);
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_NORMALIZE);
-
-   glPolygonOffset( -1, -1 );
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize( 500, 500 );
-
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-
-   glutCreateWindow(argv[0] );
-
-   Init(argc, argv);
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   glutIdleFunc( Idle );
-
-   glutCreateMenu(ModeMenu);
-   glutAddMenuEntry("Toggle Highlight", DO_SPEC_TEXTURE);
-   glutAddMenuEntry("Toggle Object", OBJECT);
-   glutAddMenuEntry("Toggle Animate", ANIMATE);
-   glutAddMenuEntry("Quit", QUIT);
-   glutAttachMenu(GLUT_RIGHT_BUTTON);
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/gltestperf.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/gltestperf.c
deleted file mode 100644
index be9539010..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/gltestperf.c
+++ /dev/null
@@ -1,580 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
-#include <GL/glut.h>
-
-typedef struct
-{
-   char *name;
-   char *unit;
-   void (*init) (void);
-   int (*run) (int, int);
-   int type;
-   int numsize;
-   int size[10];
-}
-benchmark;
-
-static int frontbuffer = 1;
-
-/***************************************************************************/
-
-static void
-init_test01(void)
-{
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluOrtho2D(-0.5, 639.5, -0.5, 479.5);
-   glMatrixMode(GL_MODELVIEW);
-
-   glShadeModel(GL_FLAT);
-   glDisable(GL_DEPTH_TEST);
-
-   glClearColor(0.0, 0.1, 1.0, 0.0);
-   glClear(GL_COLOR_BUFFER_BIT);
-   glColor3f(1.0, 0.0, 0.0);
-}
-
-static int
-test01(int size, int num)
-{
-   int x, y;
-
-   glBegin(GL_POINTS);
-   for (y = 0; y < num; y++)
-      for (x = 0; x < 480; x++)
-	 glVertex2i(x, x);
-   glEnd();
-
-   return 480 * num;
-}
-
-/***************************************************************************/
-
-static void
-init_test02(void)
-{
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluOrtho2D(-0.5, 639.5, -0.5, 479.5);
-   glMatrixMode(GL_MODELVIEW);
-
-   glShadeModel(GL_SMOOTH);
-   glDisable(GL_DEPTH_TEST);
-
-   glClearColor(0.0, 0.1, 1.0, 0.0);
-   glClear(GL_COLOR_BUFFER_BIT);
-}
-
-static int
-test02(int size, int num)
-{
-   int x, y;
-
-   glBegin(GL_LINES);
-   for (y = 0; y < num; y++)
-      for (x = 0; x < size; x++) {
-	 glColor3f(0.0, 1.0, y / (float) num);
-	 glVertex2i(0, size - 1);
-	 glColor3f(1.0, 0.0, x / (float) size);
-	 glVertex2i(x, x);
-      }
-   glEnd();
-
-   return num * size;
-}
-
-/***************************************************************************/
-
-static void
-init_test03(void)
-{
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, 1.0, -1000.0 * 480.0);
-   glMatrixMode(GL_MODELVIEW);
-
-   glShadeModel(GL_SMOOTH);
-   glEnable(GL_DEPTH_TEST);
-
-   glClearColor(0.0, 0.1, 1.0, 0.0);
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-static int
-test03(int size, int num)
-{
-   int x, y, z;
-
-   glBegin(GL_TRIANGLES);
-   for (y = 0; y < num; y++)
-      for (x = 0; x < size; x += 5) {
-	 z = num * size - (y * size + x);
-	 glColor3f(0.0, 1.0, 0.0);
-	 glVertex3i(0, x, z);
-
-	 glColor3f(1.0, 0.0, x / (float) size);
-	 glVertex3i(size - 1 - x, 0, z);
-
-	 glColor3f(1.0, x / (float) size, 0.0);
-	 glVertex3i(x, size - 1 - x, z);
-      }
-   glEnd();
-
-   return size * num / 5;
-}
-
-/***************************************************************************/
-
-static void
-init_test04(void)
-{
-   int x, y;
-   GLubyte tex[128 * 128 * 3];
-   GLenum gluerr;
-
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, 1.0, -1000.0 * 480.0);
-
-   glMatrixMode(GL_MODELVIEW);
-
-   glShadeModel(GL_SMOOTH);
-   glEnable(GL_DEPTH_TEST);
-
-   glEnable(GL_BLEND);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-   for (y = 0; y < 128; y++)
-      for (x = 0; x < 128; x++) {
-	 tex[(x + y * 128) * 3 + 0] = ((x % (128 / 4)) < (128 / 8)) ? 255 : 0;
-	 tex[(x + y * 128) * 3 + 1] = ((y % (128 / 4)) < (128 / 8)) ? 255 : 0;
-	 tex[(x + y * 128) * 3 + 2] = x;
-      }
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   if ((gluerr = gluBuild2DMipmaps(GL_TEXTURE_2D, 3, 128, 128, GL_RGB,
-				   GL_UNSIGNED_BYTE, (GLvoid *) (&tex[0])))) {
-      fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_NEAREST);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-   glEnable(GL_TEXTURE_2D);
-
-   glClearColor(0.0, 0.1, 1.0, 0.0);
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-static int
-test04(int size, int num)
-{
-   int x, y, z;
-
-   glBegin(GL_TRIANGLES);
-   for (y = 0; y < num; y++)
-      for (x = 0; x < size; x += 5) {
-	 z = num * size - (y * size + x);
-	 glTexCoord2f(1.0, 1.0);
-	 glColor3f(1.0, 0.0, 0.0);
-	 glVertex3i(0, x, z);
-
-	 glTexCoord2f(0.0, 1.0);
-	 glColor3f(0.0, 1.0, 0.0);
-	 glVertex3i(size - 1 - x, 0, z);
-
-	 glTexCoord2f(1.0, 0.0);
-	 glColor3f(0.0, 0.0, 1.0);
-	 glVertex3i(x, size - 1 - x, z);
-      }
-   glEnd();
-
-   return num * size / 5;
-}
-
-/***************************************************************************/
-
-static void
-init_test05(void)
-{
-   int x, y;
-   GLubyte tex[128 * 128 * 3];
-   GLenum gluerr;
-
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-
-   glMatrixMode(GL_MODELVIEW);
-
-   glShadeModel(GL_SMOOTH);
-   glEnable(GL_DEPTH_TEST);
-
-   glEnable(GL_BLEND);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-   for (y = 0; y < 128; y++)
-      for (x = 0; x < 128; x++) {
-	 tex[(x + y * 128) * 3 + 0] = ((x % (128 / 4)) < (128 / 8)) ? 255 : 0;
-	 tex[(x + y * 128) * 3 + 1] = ((y % (128 / 4)) < (128 / 8)) ? 255 : 0;
-	 tex[(x + y * 128) * 3 + 2] = x;
-      }
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   if ((gluerr = gluBuild2DMipmaps(GL_TEXTURE_2D, 3, 128, 128, GL_RGB,
-				   GL_UNSIGNED_BYTE, (GLvoid *) (&tex[0])))) {
-      fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_NEAREST);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-   glEnable(GL_TEXTURE_2D);
-
-   glDepthFunc(GL_ALWAYS);
-
-   glClearColor(0.0, 0.1, 1.0, 0.0);
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-static int
-test05(int size, int num)
-{
-   int y;
-   float v0[3], v1[3], v2[3], v3[3];
-   float cv0[3], cv1[3], cv2[3], cv3[3];
-   float tv0[3], tv1[3], tv2[3], tv3[3];
-
-   v0[0] = 320 - size / 2;
-   v0[1] = 240 - size / 2;
-   v0[2] = 0.0;
-   v1[0] = 320 + size / 2;
-   v1[1] = 240 - size / 2;
-   v1[2] = 0.0;
-   v2[0] = 320 - size / 2;
-   v2[1] = 240 + size / 2;
-   v2[2] = 0.0;
-   v3[0] = 320 + size / 2;
-   v3[1] = 240 + size / 2;
-   v3[2] = 0.0;
-   cv0[0] = 1.0;
-   cv0[1] = 0.0;
-   cv0[2] = 0.0;
-   cv1[0] = 1.0;
-   cv1[1] = 1.0;
-   cv1[2] = 0.0;
-   cv2[0] = 1.0;
-   cv2[1] = 0.0;
-   cv2[2] = 1.0;
-   cv3[0] = 1.0;
-   cv3[1] = 1.0;
-   cv3[2] = 1.0;
-   tv0[0] = 0.0;
-   tv0[1] = 0.0;
-   tv0[2] = 0.0;
-   tv1[0] = 1.0;
-   tv1[1] = 0.0;
-   tv1[2] = 0.0;
-   tv2[0] = 0.0;
-   tv2[1] = 1.0;
-   tv2[2] = 0.0;
-   tv3[0] = 1.0;
-   tv3[1] = 1.0;
-   tv3[2] = 0.0;
-
-   glBegin(GL_TRIANGLE_STRIP);
-   for (y = 0; y < num; y++) {
-      glColor3fv(cv0);
-      glTexCoord2fv(tv0);
-      glVertex3fv(v0);
-
-      glColor3fv(cv1);
-      glTexCoord2fv(tv1);
-      glVertex3fv(v1);
-
-      glColor3fv(cv2);
-      glTexCoord2fv(tv2);
-      glVertex3fv(v2);
-
-      glColor3fv(cv3);
-      glTexCoord2fv(tv3);
-      glVertex3fv(v3);
-   }
-   glEnd();
-
-   return 4 * num - 2;
-}
-
-/***************************************************************************/
-
-static void
-init_test06(void)
-{
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluOrtho2D(-0.5, 639.5, -0.5, 479.5);
-   glMatrixMode(GL_MODELVIEW);
-
-   glShadeModel(GL_SMOOTH);
-   glEnable(GL_DEPTH_TEST);
-
-   glClearColor(0.0, 0.1, 1.0, 0.0);
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-static int
-test06(int size, int num)
-{
-   int y;
-
-   for (y = 0; y < num; y++) {
-      glClearColor(y / (float) num, 0.1, 1.0, 0.0);
-      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-   }
-
-   return num;
-}
-
-/***************************************************************************/
-
-#define BMARKS_TIME 5.0
-
-#define NUM_BMARKS 6
-
-/* 554 ~= sqrt(640*480) */
-
-static benchmark bmarks[NUM_BMARKS] = {
-   {"Simple Points", "Pnts", init_test01, test01, 0, 0,
-    {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
-   {"Smooth Lines", "Lins", init_test02, test02, 1, 5,
-    {480, 250, 100, 50, 25, 0, 0, 0, 0, 0}},
-   {"ZSmooth Triangles", "Tris", init_test03, test03, 1, 5,
-    {480, 250, 100, 50, 25, 0, 0, 0, 0, 0}},
-   {"ZSmooth Tex Blend Triangles", "Tris", init_test04, test04, 1, 5,
-    {480, 250, 100, 50, 25, 0, 0, 0, 0, 0}},
-   {"ZSmooth Tex Blend TMesh Triangles", "Tris", init_test05, test05, 2, 8,
-    {400, 250, 100, 50, 25, 10, 5, 2, 0, 0}},
-   {"Color/Depth Buffer Clears", "Clrs", init_test06, test06, 3, 0,
-    {554, 0, 0, 0, 0, 0, 0, 0, 0, 0}}
-};
-
-/***************************************************************************/
-
-static void
-dotest0param(benchmark * bmark)
-{
-   float stime, etime, dtime, tottime, maxtime, mintime;
-   int num, numelem, calibnum, j;
-
-   glPushAttrib(GL_ALL_ATTRIB_BITS);
-   bmark->init();
-
-   stime = glutGet(GLUT_ELAPSED_TIME);
-
-   dtime = 0.0;
-   calibnum = 0;
-   while (dtime < 2.0) {
-      bmark->run(0, 1);
-      glFinish();
-      etime = glutGet(GLUT_ELAPSED_TIME);
-      dtime = (etime - stime) / 1000.0;
-      calibnum++;
-   }
-   glPopAttrib();
-
-   fprintf(stderr, "Elapsed time for the calibration test (%d): %f\n",
-	   calibnum, dtime);
-
-   num = (int) ((BMARKS_TIME / dtime) * calibnum);
-
-   if (num < 1)
-      num = 1;
-
-   fprintf(stderr, "Selected number of benchmark iterations: %d\n", num);
-
-   mintime = HUGE_VAL;
-   maxtime = -HUGE_VAL;
-
-   for (tottime = 0.0, j = 0; j < 5; j++) {
-      glPushAttrib(GL_ALL_ATTRIB_BITS);
-      bmark->init();
-
-      stime = glutGet(GLUT_ELAPSED_TIME);
-      numelem = bmark->run(0, num);
-      glFinish();
-      etime = glutGet(GLUT_ELAPSED_TIME);
-
-      glPopAttrib();
-
-      dtime = (etime - stime) / 1000.0;
-      tottime += dtime;
-
-      fprintf(stderr, "Elapsed time for run %d: %f\n", j, dtime);
-
-      if (dtime < mintime)
-	 mintime = dtime;
-      if (dtime > maxtime)
-	 maxtime = dtime;
-   }
-
-   tottime -= mintime + maxtime;
-
-   fprintf(stdout, "%s\n%f %s/sec", bmark->name, numelem / (tottime / 3.0),
-	   bmark->unit);
-
-   if (bmark->type == 3)
-      fprintf(stdout, ", MPixel Fill/sec: %f\n\n",
-	      (numelem * bmark->size[0] * (float) bmark->size[0]) /
-	      (1000000.0 * tottime / 3.0));
-   else
-      fprintf(stdout, "\n\n");
-}
-
-/***************************************************************************/
-
-static void
-dotest1param(benchmark * bmark)
-{
-   float stime, etime, dtime, tottime, maxtime, mintime;
-   int num, numelem, calibnum, j, k;
-
-   fprintf(stdout, "%s\n", bmark->name);
-
-   for (j = 0; j < bmark->numsize; j++) {
-      fprintf(stderr, "Current size: %d\n", bmark->size[j]);
-
-      glPushAttrib(GL_ALL_ATTRIB_BITS);
-      bmark->init();
-
-      stime = glutGet(GLUT_ELAPSED_TIME);
-
-      dtime = 0.0;
-      calibnum = 0;
-      while (dtime < 2.0) {
-	 bmark->run(bmark->size[j], 1);
-	 glFinish();
-	 etime = glutGet(GLUT_ELAPSED_TIME);
-	 dtime = (etime - stime) / 1000.0;
-	 calibnum++;
-      }
-      glPopAttrib();
-
-      fprintf(stderr, "Elapsed time for the calibration test (%d): %f\n",
-	      calibnum, dtime);
-
-      num = (int) ((BMARKS_TIME / dtime) * calibnum);
-
-      if (num < 1)
-	 num = 1;
-
-      fprintf(stderr, "Selected number of benchmark iterations: %d\n", num);
-
-      mintime = HUGE_VAL;
-      maxtime = -HUGE_VAL;
-
-      for (numelem = 1, tottime = 0.0, k = 0; k < 5; k++) {
-	 glPushAttrib(GL_ALL_ATTRIB_BITS);
-	 bmark->init();
-
-	 stime = glutGet(GLUT_ELAPSED_TIME);
-	 numelem = bmark->run(bmark->size[j], num);
-	 glFinish();
-	 etime = glutGet(GLUT_ELAPSED_TIME);
-
-	 glPopAttrib();
-
-	 dtime = (etime - stime) / 1000.0;
-	 tottime += dtime;
-
-	 fprintf(stderr, "Elapsed time for run %d: %f\n", k, dtime);
-
-	 if (dtime < mintime)
-	    mintime = dtime;
-	 if (dtime > maxtime)
-	    maxtime = dtime;
-      }
-
-      tottime -= mintime + maxtime;
-
-      fprintf(stdout, "SIZE=%03d => %f %s/sec", bmark->size[j],
-	      numelem / (tottime / 3.0), bmark->unit);
-      if (bmark->type == 2)
-	 fprintf(stdout, ", MPixel Fill/sec: %f\n",
-		 (numelem * bmark->size[j] * bmark->size[j] / 2) /
-		 (1000000.0 * tottime / 3.0));
-      else
-	 fprintf(stdout, "\n");
-   }
-
-   fprintf(stdout, "\n\n");
-}
-
-/***************************************************************************/
-
-static void
-display(void)
-{
-   int i;
-
-   if (frontbuffer)
-      glDrawBuffer(GL_FRONT);
-   else
-      glDrawBuffer(GL_BACK);
-
-   for (i = 0; i < NUM_BMARKS; i++) {
-      fprintf(stderr, "Benchmark: %d\n", i);
-
-      switch (bmarks[i].type) {
-      case 0:
-      case 3:
-	 dotest0param(&bmarks[i]);
-	 break;
-      case 1:
-      case 2:
-	 dotest1param(&bmarks[i]);
-	 break;
-      }
-   }
-
-   exit(0);
-}
-
-int
-main(int ac, char **av)
-{
-   fprintf(stderr, "GLTest v1.0\nWritten by David Bucciarelli\n");
-
-   if (ac == 2)
-      frontbuffer = 0;
-
-   glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(640, 480);
-   glutCreateWindow("OpenGL/Mesa Performances");
-   glutDisplayFunc(display);
-   glutMainLoop();
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/glutfx.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/glutfx.c
deleted file mode 100644
index 8bf558238..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/glutfx.c
+++ /dev/null
@@ -1,189 +0,0 @@
-
-/*
- * Example of how one might use GLUT with the 3Dfx driver in full-screen mode.
- * Note: this only works with X since we're using Mesa's GLX "hack" for
- * using Glide.
- *
- * Goals:
- *   easy setup and input event handling with GLUT
- *   use 3Dfx hardware
- *   automatically set MESA environment variables
- *   don't lose mouse input focus
- *
- * Brian Paul   This file is in the public domain.
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glut.h>
-
-
-#define WIDTH 640
-#define HEIGHT 480
-
-
-static int Window = 0;
-static int ScreenWidth, ScreenHeight;
-static GLuint Torus = 0;
-static GLfloat Xrot = 0.0, Yrot = 0.0;
-
-
-
-static void Display( void )
-{
-   static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0};
-   static GLfloat red[4] = {1.0, 0.2, 0.2, 1.0};
-   static GLfloat green[4] = {0.2, 1.0, 0.2, 1.0};
-
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-   glPushMatrix();
-   glRotatef(Xrot, 1, 0, 0);
-   glRotatef(Yrot, 0, 1, 0);
-
-   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, blue);
-   glCallList(Torus);
-
-   glRotatef(90.0, 1, 0, 0);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
-   glCallList(Torus);
-
-   glRotatef(90.0, 0, 1, 0);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, green);
-   glCallList(Torus);
-
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   float ratio = (float) width / (float) height;
-
-   ScreenWidth = width;
-   ScreenHeight = height;
-
-   /*
-    * The 3Dfx driver is limited to 640 x 480 but the X window may be larger.
-    * Enforce that here.
-    */
-   if (width > WIDTH)
-      width = WIDTH;
-   if (height > HEIGHT)
-      height = HEIGHT;
-
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -ratio, ratio, -1.0, 1.0, 5.0, 30.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -20.0 );
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 27:
-         glutDestroyWindow(Window);
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         break;
-      case GLUT_KEY_DOWN:
-         break;
-      case GLUT_KEY_LEFT:
-         break;
-      case GLUT_KEY_RIGHT:
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void MouseMove( int x, int y )
-{
-   Xrot = y - ScreenWidth / 2;
-   Yrot = x - ScreenHeight / 2;
-   glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
-   Torus = glGenLists(1);
-   glNewList(Torus, GL_COMPILE);
-   glutSolidTorus(0.5, 2.0, 10, 20);
-   glEndList();
-
-   glEnable(GL_LIGHTING);
-   glEnable(GL_LIGHT0);
-
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_CULL_FACE);
-}
-
-
-int main( int argc, char *argv[] )
-{
-#ifndef _WIN32
-   printf("NOTE: if you've got 3Dfx VooDoo hardware you must run this");
-   printf(" program as root.\n\n");
-   printf("Move the mouse.  Press ESC to exit.\n\n");
-#endif
-
-   /* Tell Mesa GLX to use 3Dfx driver in fullscreen mode. */
-   putenv("MESA_GLX_FX=fullscreen");
-
-   /* Disable 3Dfx Glide splash screen */
-   putenv("FX_GLIDE_NO_SPLASH=");
-
-   /* Give an initial size and position so user doesn't have to place window */
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WIDTH, HEIGHT);
-   glutInit( &argc, argv );
-
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-
-   Window = glutCreateWindow(argv[0]);
-   if (!Window) {
-      printf("Error, couldn't open window\n");
-      exit(1);
-   }
-
-   /*
-    * Want the X window to fill the screen so that we don't have to
-    * worry about losing the mouse input focus.
-    * Note that we won't actually see the X window since we never draw
-    * to it, hence, the original X screen's contents aren't disturbed.
-    */
-   glutFullScreen();
-
-   Init();
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   glutPassiveMotionFunc( MouseMove );
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/ipers.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/ipers.c
deleted file mode 100644
index 6e153c04e..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/ipers.c
+++ /dev/null
@@ -1,712 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-
-#if defined (WIN32)|| defined(_WIN32)
-#include <windows.h>
-#include <mmsystem.h>
-#endif
-
-#include <GL/glut.h>
-
-#include "readtex.h"
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-static int WIDTH = 640;
-static int HEIGHT = 480;
-
-static GLint T0;
-static GLint Frames;
-
-#define MAX_LOD 9
-
-#define TEX_SKY_WIDTH 256
-#define TEX_SKY_HEIGHT TEX_SKY_WIDTH
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-#define FROM_NONE   0
-#define FROM_DOWN   1
-#define FROM_UP     2
-#define FROM_LEFT   3
-#define FROM_RIGHT  4
-#define FROM_FRONT  5
-#define FROM_BACK   6
-
-static int win = 0;
-
-static float obs[3] = { 3.8, 0.0, 0.0 };
-static float dir[3];
-static float v = 0.0;
-static float alpha = -90.0;
-static float beta = 90.0;
-
-static int fog = 1;
-static int bfcull = 1;
-static int usetex = 1;
-static int help = 1;
-static int poutline = 0;
-static int normext = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-static int LODbias = 3;
-static int maxdepth = MAX_LOD;
-
-static unsigned int totpoly = 0;
-
-static GLuint t1id, t2id;
-static GLuint skydlist, LODdlist[MAX_LOD], LODnumpoly[MAX_LOD];
-
-static void
-initlight(void)
-{
-   GLfloat lspec[4] = { 1.0, 1.0, 1.0, 1.0 };
-   static GLfloat lightpos[4] = { 30, 15.0, 30.0, 1.0 };
-
-   glLightfv(GL_LIGHT0, GL_POSITION, lightpos);
-   glLightfv(GL_LIGHT0, GL_SPECULAR, lspec);
-
-   glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 32.0);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, lspec);
-}
-
-static void
-initdlists(void)
-{
-   static int slicetable[MAX_LOD][2] = {
-      {21, 10},
-      {18, 9},
-      {15, 8},
-      {12, 7},
-      {9, 6},
-      {7, 5},
-      {5, 4},
-      {4, 3},
-      {3, 2}
-   };
-   GLUquadricObj *obj;
-   int i, xslices, yslices;
-
-   obj = gluNewQuadric();
-
-   skydlist = glGenLists(1);
-   glNewList(skydlist, GL_COMPILE);
-   glBindTexture(GL_TEXTURE_2D, t2id);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-   glColor3f(1.0f, 1.0f, 1.0f);
-
-   gluQuadricDrawStyle(obj, GLU_FILL);
-   gluQuadricNormals(obj, GLU_NONE);
-   gluQuadricTexture(obj, GL_TRUE);
-   gluQuadricOrientation(obj, GLU_INSIDE);
-   gluSphere(obj, 40.0f, 18, 9);
-
-   glEndList();
-
-   for (i = 0; i < MAX_LOD; i++) {
-      LODdlist[i] = glGenLists(1);
-      glNewList(LODdlist[i], GL_COMPILE);
-
-      gluQuadricDrawStyle(obj, GLU_FILL);
-      gluQuadricNormals(obj, GLU_SMOOTH);
-      gluQuadricTexture(obj, GL_TRUE);
-      gluQuadricOrientation(obj, GLU_OUTSIDE);
-      xslices = slicetable[i][0];
-      yslices = slicetable[i][1];
-      gluSphere(obj, 1.0f, xslices, yslices);
-      LODnumpoly[i] = xslices * (yslices - 2) + 2 * (xslices - 1);
-
-      glEndList();
-   }
-}
-
-static void
-inittextures(void)
-{
-   GLubyte tsky[TEX_SKY_HEIGHT][TEX_SKY_WIDTH][3];
-   GLuint x, y;
-   GLfloat fact;
-   GLenum gluerr;
-
-   /* Brick */
-
-   glGenTextures(1, &t1id);
-   glBindTexture(GL_TEXTURE_2D, t1id);
-
-   if (!LoadRGBMipmaps("../images/bw.rgb", 3)) {
-      fprintf(stderr, "Error reading a texture.\n");
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   /* Sky */
-
-   glGenTextures(1, &t2id);
-   glBindTexture(GL_TEXTURE_2D, t2id);
-
-   for (y = 0; y < TEX_SKY_HEIGHT; y++)
-      for (x = 0; x < TEX_SKY_WIDTH; x++)
-	 if (y < TEX_SKY_HEIGHT / 2) {
-	    fact = y / (GLfloat) (TEX_SKY_HEIGHT / 2);
-	    tsky[y][x][0] =
-	       (GLubyte) (255.0f * (0.1f * fact + 0.3f * (1.0f - fact)));
-	    tsky[y][x][1] =
-	       (GLubyte) (255.0f * (0.2f * fact + 1.0f * (1.0f - fact)));
-	    tsky[y][x][2] = 255;
-	 }
-	 else {
-	    tsky[y][x][0] = tsky[TEX_SKY_HEIGHT - y - 1][x][0];
-	    tsky[y][x][1] = tsky[TEX_SKY_HEIGHT - y - 1][x][1];
-	    tsky[y][x][2] = 255;
-	 }
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   if (
-       (gluerr =
-	gluBuild2DMipmaps(GL_TEXTURE_2D, 3, TEX_SKY_WIDTH, TEX_SKY_HEIGHT,
-			  GL_RGB, GL_UNSIGNED_BYTE, (GLvoid *) (tsky)))) {
-      fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-}
-
-static void
-calcposobs(void)
-{
-   dir[0] = sin(alpha * M_PI / 180.0);
-   dir[1] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
-   dir[2] = cos(beta * M_PI / 180.0);
-
-   if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5)
-      dir[0] = 0;
-   if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5)
-      dir[1] = 0;
-   if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
-      dir[2] = 0;
-
-   obs[0] += v * dir[0];
-   obs[1] += v * dir[1];
-   obs[2] += v * dir[2];
-}
-
-static void
-special(int k, int x, int y)
-{
-   switch (k) {
-   case GLUT_KEY_LEFT:
-      alpha -= 2.0;
-      break;
-   case GLUT_KEY_RIGHT:
-      alpha += 2.0;
-      break;
-   case GLUT_KEY_DOWN:
-      beta -= 2.0;
-      break;
-   case GLUT_KEY_UP:
-      beta += 2.0;
-      break;
-   }
-}
-
-static void
-key(unsigned char k, int x, int y)
-{
-   switch (k) {
-   case 27:
-      exit(0);
-      break;
-
-   case 'a':
-      v += 0.01;
-      break;
-   case 'z':
-      v -= 0.01;
-      break;
-
-#ifdef XMESA
-   case ' ':
-      fullscreen = (!fullscreen);
-      XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-      break;
-#endif
-
-   case '+':
-      LODbias--;
-      break;
-   case '-':
-      LODbias++;
-      break;
-   case 'j':
-      joyactive = (!joyactive);
-      break;
-   case 'h':
-      help = (!help);
-      break;
-   case 'f':
-      fog = (!fog);
-      break;
-   case 't':
-      usetex = (!usetex);
-      break;
-   case 'n':
-      normext = (!normext);
-      break;
-   case 'b':
-      if (bfcull) {
-	 glDisable(GL_CULL_FACE);
-	 bfcull = 0;
-      }
-      else {
-	 glEnable(GL_CULL_FACE);
-	 bfcull = 1;
-      }
-      break;
-   case 'p':
-      if (poutline) {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-	 poutline = 0;
-	 usetex = 1;
-      }
-      else {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-	 poutline = 1;
-	 usetex = 0;
-      }
-      break;
-   }
-}
-
-static void
-reshape(int w, int h)
-{
-   WIDTH = w;
-   HEIGHT = h;
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(90.0, w / (float) h, 0.8, 100.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glViewport(0, 0, w, h);
-}
-
-static void
-printstring(void *font, char *string)
-{
-   int len, i;
-
-   len = (int) strlen(string);
-   for (i = 0; i < len; i++)
-      glutBitmapCharacter(font, string[i]);
-}
-
-static void
-printhelp(void)
-{
-   glEnable(GL_BLEND);
-   glColor4f(0.5, 0.5, 0.5, 0.5);
-   glRecti(40, 40, 600, 440);
-   glDisable(GL_BLEND);
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(300, 420);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help");
-
-   glRasterPos2i(60, 390);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help");
-   glRasterPos2i(60, 360);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Toggle Textures");
-   glRasterPos2i(60, 330);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog");
-   glRasterPos2i(60, 300);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Toggle Back face culling");
-   glRasterPos2i(60, 270);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate");
-   glRasterPos2i(60, 240);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity");
-   glRasterPos2i(60, 210);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity");
-   glRasterPos2i(60, 180);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "p - Toggle Wire frame");
-   glRasterPos2i(60, 150);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-	       "n - Toggle GL_EXT_rescale_normal extension");
-   glRasterPos2i(60, 120);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-	       "+/- - Increase/decrease the Object maximum LOD");
-
-   glRasterPos2i(60, 90);
-   if (joyavailable)
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "j - Toggle jostick control (Joystick control available)");
-   else
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "(No Joystick control available)");
-}
-
-static void
-dojoy(void)
-{
-#ifdef _WIN32
-   static UINT max[2] = { 0, 0 };
-   static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2];
-   MMRESULT res;
-   JOYINFO joy;
-
-   res = joyGetPos(JOYSTICKID1, &joy);
-
-   if (res == JOYERR_NOERROR) {
-      joyavailable = 1;
-
-      if (max[0] < joy.wXpos)
-	 max[0] = joy.wXpos;
-      if (min[0] > joy.wXpos)
-	 min[0] = joy.wXpos;
-      center[0] = (max[0] + min[0]) / 2;
-
-      if (max[1] < joy.wYpos)
-	 max[1] = joy.wYpos;
-      if (min[1] > joy.wYpos)
-	 min[1] = joy.wYpos;
-      center[1] = (max[1] + min[1]) / 2;
-
-      if (joyactive) {
-	 if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0]))
-	    alpha -=
-	       2.0 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
-	 if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
-	    beta += 2.0 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
-	 if (joy.wButtons & JOY_BUTTON1)
-	    v += 0.01;
-	 if (joy.wButtons & JOY_BUTTON2)
-	    v -= 0.01;
-      }
-   }
-   else
-      joyavailable = 0;
-#endif
-}
-
-static void
-drawipers(int depth, int from)
-{
-   int lod;
-
-   if (depth == maxdepth)
-      return;
-
-   lod = depth + LODbias;
-   if (lod < 0)
-      lod = 0;
-   if (lod >= MAX_LOD)
-      return;
-
-   switch (from) {
-   case FROM_NONE:
-      glCallList(LODdlist[lod]);
-
-      depth++;
-      drawipers(depth, FROM_DOWN);
-      drawipers(depth, FROM_UP);
-      drawipers(depth, FROM_FRONT);
-      drawipers(depth, FROM_BACK);
-      drawipers(depth, FROM_LEFT);
-      drawipers(depth, FROM_RIGHT);
-      break;
-   case FROM_FRONT:
-      glPushMatrix();
-      glTranslatef(0.0f, -1.5f, 0.0f);
-      glScalef(0.5f, 0.5f, 0.5f);
-
-      glCallList(LODdlist[lod]);
-
-      depth++;
-      drawipers(depth, FROM_DOWN);
-      drawipers(depth, FROM_UP);
-      drawipers(depth, FROM_FRONT);
-      drawipers(depth, FROM_LEFT);
-      drawipers(depth, FROM_RIGHT);
-      glPopMatrix();
-      break;
-   case FROM_BACK:
-      glPushMatrix();
-      glTranslatef(0.0f, 1.5f, 0.0f);
-      glScalef(0.5f, 0.5f, 0.5f);
-
-      glCallList(LODdlist[lod]);
-
-      depth++;
-      drawipers(depth, FROM_DOWN);
-      drawipers(depth, FROM_UP);
-      drawipers(depth, FROM_BACK);
-      drawipers(depth, FROM_LEFT);
-      drawipers(depth, FROM_RIGHT);
-      glPopMatrix();
-      break;
-   case FROM_LEFT:
-      glPushMatrix();
-      glTranslatef(-1.5f, 0.0f, 0.0f);
-      glScalef(0.5f, 0.5f, 0.5f);
-
-      glCallList(LODdlist[lod]);
-
-      depth++;
-      drawipers(depth, FROM_DOWN);
-      drawipers(depth, FROM_UP);
-      drawipers(depth, FROM_FRONT);
-      drawipers(depth, FROM_BACK);
-      drawipers(depth, FROM_LEFT);
-      glPopMatrix();
-      break;
-   case FROM_RIGHT:
-      glPushMatrix();
-      glTranslatef(1.5f, 0.0f, 0.0f);
-      glScalef(0.5f, 0.5f, 0.5f);
-
-      glCallList(LODdlist[lod]);
-
-      depth++;
-      drawipers(depth, FROM_DOWN);
-      drawipers(depth, FROM_UP);
-      drawipers(depth, FROM_FRONT);
-      drawipers(depth, FROM_BACK);
-      drawipers(depth, FROM_RIGHT);
-      glPopMatrix();
-      break;
-   case FROM_DOWN:
-      glPushMatrix();
-      glTranslatef(0.0f, 0.0f, 1.5f);
-      glScalef(0.5f, 0.5f, 0.5f);
-
-      glCallList(LODdlist[lod]);
-
-      depth++;
-      drawipers(depth, FROM_DOWN);
-      drawipers(depth, FROM_FRONT);
-      drawipers(depth, FROM_BACK);
-      drawipers(depth, FROM_LEFT);
-      drawipers(depth, FROM_RIGHT);
-      glPopMatrix();
-      break;
-   case FROM_UP:
-      glPushMatrix();
-      glTranslatef(0.0f, 0.0f, -1.5f);
-      glScalef(0.5f, 0.5f, 0.5f);
-
-      glCallList(LODdlist[lod]);
-
-      depth++;
-      drawipers(depth, FROM_UP);
-      drawipers(depth, FROM_FRONT);
-      drawipers(depth, FROM_BACK);
-      drawipers(depth, FROM_LEFT);
-      drawipers(depth, FROM_RIGHT);
-      glPopMatrix();
-      break;
-   }
-
-   totpoly += LODnumpoly[lod];
-}
-
-static void
-draw(void)
-{
-   static char frbuf[80] = "";
-   static GLfloat alpha = 0.0f;
-   static GLfloat beta = 0.0f;
-   static float fr = 0.0;
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-
-   dojoy();
-
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-   if (usetex)
-      glEnable(GL_TEXTURE_2D);
-   else
-      glDisable(GL_TEXTURE_2D);
-
-   if (fog)
-      glEnable(GL_FOG);
-   else
-      glDisable(GL_FOG);
-
-   glPushMatrix();
-   calcposobs();
-   gluLookAt(obs[0], obs[1], obs[2],
-	     obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
-	     0.0, 0.0, 1.0);
-
-   /* Scene */
-   glEnable(GL_DEPTH_TEST);
-
-   glShadeModel(GL_SMOOTH);
-   glBindTexture(GL_TEXTURE_2D, t1id);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-   glColor3f(1.0f, 1.0f, 1.0f);
-   glEnable(GL_LIGHT0);
-   glEnable(GL_LIGHTING);
-
-   if (normext)
-      glEnable(GL_RESCALE_NORMAL_EXT);
-   else
-      glEnable(GL_NORMALIZE);
-
-   glPushMatrix();
-   glRotatef(alpha, 0.0f, 0.0f, 1.0f);
-   glRotatef(beta, 1.0f, 0.0f, 0.0f);
-   totpoly = 0;
-   drawipers(0, FROM_NONE);
-   glPopMatrix();
-
-   alpha += 4.f * dt;
-   beta += 2.4f * dt;
-
-   glDisable(GL_LIGHTING);
-   glDisable(GL_LIGHT0);
-   glShadeModel(GL_FLAT);
-
-   if (normext)
-      glDisable(GL_RESCALE_NORMAL_EXT);
-   else
-      glDisable(GL_NORMALIZE);
-
-   glCallList(skydlist);
-
-   glPopMatrix();
-
-   /* Help Screen */
-
-   sprintf(frbuf,
-	   "Frame rate: %0.2f   LOD: %d   Tot. poly.: %d   Poly/sec: %.1f",
-	   fr, LODbias, totpoly, totpoly * fr);
-
-   glDisable(GL_TEXTURE_2D);
-   glDisable(GL_FOG);
-   glShadeModel(GL_FLAT);
-   glDisable(GL_DEPTH_TEST);
-
-   glMatrixMode(GL_PROJECTION);
-   glPushMatrix();
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(10, 10);
-   printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
-   glRasterPos2i(350, 470);
-   printstring(GLUT_BITMAP_HELVETICA_10,
-	       "IperS V1.0 Written by David Bucciarelli (tech.hmw@plus.it)");
-
-   if (help)
-      printhelp();
-
-   glMatrixMode(GL_PROJECTION);
-   glPopMatrix();
-   glMatrixMode(GL_MODELVIEW);
-
-   glutSwapBuffers();
-
-   Frames++;
-   {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      if (t - T0 >= 2000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         fr = Frames / seconds;
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-int
-main(int ac, char **av)
-{
-   float fogcolor[4] = { 0.7, 0.7, 0.7, 1.0 };
-
-   fprintf(stderr,
-	   "IperS V1.0\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
-
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WIDTH, HEIGHT);
-   glutInit(&ac, av);
-
-   glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
-
-   if (!(win = glutCreateWindow("IperS"))) {
-      fprintf(stderr, "Error, couldn't open window\n");
-      exit(-1);
-   }
-
-   reshape(WIDTH, HEIGHT);
-
-   glShadeModel(GL_SMOOTH);
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_CULL_FACE);
-   glEnable(GL_TEXTURE_2D);
-
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-   glEnable(GL_FOG);
-   glFogi(GL_FOG_MODE, GL_EXP2);
-   glFogfv(GL_FOG_COLOR, fogcolor);
-
-   glFogf(GL_FOG_DENSITY, 0.006);
-
-   glHint(GL_FOG_HINT, GL_NICEST);
-
-   inittextures();
-   initdlists();
-   initlight();
-
-   glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]);
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   calcposobs();
-
-   glutReshapeFunc(reshape);
-   glutDisplayFunc(draw);
-   glutKeyboardFunc(key);
-   glutSpecialFunc(special);
-   glutIdleFunc(draw);
-
-   glutMainLoop();
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/isosurf.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/isosurf.c
deleted file mode 100644
index 0710bc604..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/isosurf.c
+++ /dev/null
@@ -1,1125 +0,0 @@
-
-/*
- * Display an isosurface of 3-D wind speed volume.
- *
- * Command line options:
- *    -info      print GL implementation information
- *
- * Brian Paul  This file in public domain.
- */
-
-
-/* Keys:
- * =====
- *
- *   - Arrow keys to rotate
- *   - 's' toggles smooth shading
- *   - 'l' toggles lighting
- *   - 'f' toggles fog
- *   - 'I' and 'i' zoom in and out
- *   - 'c' toggles a user clip plane
- *   - 'm' toggles colorful materials in GL_TRIANGLES modes.
- *   - '+' and '-' move the user clip plane
- *
- * Other options are available via the popup menu.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#ifdef _WIN32
-#include <windows.h>
-#undef CLIP_MASK
-#endif
-#define GL_GLEXT_PROTOTYPES
-#include "GL/glut.h"
-
-#include "readtex.h"
-#define TEXTURE_FILE "../images/reflect.rgb"
-
-#define LIT		0x00000001
-#define UNLIT		0x00000002
-#define REFLECT		0x00000004
-#define POINT_FILTER	0x00000008
-#define LINEAR_FILTER	0x00000010
-#define GLVERTEX	0x00000020
-#define DRAW_ELTS	0x00000040 
-#define DRAW_ARRAYS	0x00000080 
-#define ARRAY_ELT	0x00000100
-#define LOCKED	        0x00000200
-#define UNLOCKED	0x00000400 
-#define IMMEDIATE	0x00000800
-#define DISPLAYLIST	0x00001000
-#define SHADE_SMOOTH	0x00002000
-#define SHADE_FLAT	0x00004000
-#define TRIANGLES	0x00008000
-#define STRIPS		0x00010000
-#define POINTS		0x00020000
-#define USER_CLIP	0x00040000
-#define NO_USER_CLIP	0x00080000
-#define MATERIALS	0x00100000
-#define NO_MATERIALS	0x00200000
-#define FOG		0x00400000
-#define NO_FOG		0x00800000
-#define QUIT		0x01000000
-#define GLINFO		0x02000000
-#define STIPPLE		0x04000000
-#define NO_STIPPLE	0x08000000
-#define POLYGON_FILL	0x10000000
-#define POLYGON_LINE	0x20000000
-
-#define LIGHT_MASK		(LIT|UNLIT|REFLECT)
-#define FILTER_MASK		(POINT_FILTER|LINEAR_FILTER)
-#define RENDER_STYLE_MASK	(GLVERTEX|DRAW_ARRAYS|DRAW_ELTS|ARRAY_ELT)
-#define DLIST_MASK		(IMMEDIATE|DISPLAYLIST)
-#define LOCK_MASK		(LOCKED|UNLOCKED)
-#define MATERIAL_MASK		(MATERIALS|NO_MATERIALS)
-#define PRIMITIVE_MASK		(TRIANGLES|STRIPS|POINTS)
-#define CLIP_MASK		(USER_CLIP|NO_USER_CLIP)
-#define SHADE_MASK		(SHADE_SMOOTH|SHADE_FLAT)
-#define FOG_MASK		(FOG|NO_FOG)
-#define STIPPLE_MASK		(STIPPLE|NO_STIPPLE)
-#define POLYGON_MASK		(POLYGON_FILL|POLYGON_LINE)
-
-#define MAXVERTS 10000
-static GLint maxverts = MAXVERTS;
-static float data[MAXVERTS][6];
-static float compressed_data[MAXVERTS][6];
-static float expanded_data[MAXVERTS*3][6];
-static GLuint indices[MAXVERTS];
-static GLuint tri_indices[MAXVERTS*3];
-static GLuint strip_indices[MAXVERTS];
-static GLfloat col[100][4];
-static GLint numverts, num_tri_verts, numuniq;
-
-static GLfloat xrot;
-static GLfloat yrot;
-static GLfloat dist;
-static GLint state, allowed = ~0;
-static GLboolean doubleBuffer = GL_TRUE;
-static GLdouble plane[4];
-static GLuint surf1, dlist_state;
-
-static GLboolean PrintInfo = GL_FALSE;
-
-
-static GLubyte halftone[] = {
-   0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA,
-   0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55,
-   0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA,
-   0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55,
-   0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA,
-   0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55,
-   0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA,
-   0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55,
-   0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA,
-   0x55, 0x55, 0x55, 0x55, 0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55,
-   0xAA, 0xAA, 0xAA, 0xAA, 0x55, 0x55, 0x55, 0x55};
-
-
-static void read_surface( char *filename )
-{
-   FILE *f;
-
-   f = fopen(filename,"r");
-   if (!f) {
-      printf("couldn't read %s\n", filename);
-      exit(1);
-   }
-
-   numverts = 0;
-   while (!feof(f) && numverts<maxverts) {
-      fscanf( f, "%f %f %f  %f %f %f",
-	      &data[numverts][0], &data[numverts][1], &data[numverts][2],
-	      &data[numverts][3], &data[numverts][4], &data[numverts][5] );
-      numverts++;
-   }
-   numverts--;
-
-   printf("%d vertices, %d triangles\n", numverts, numverts-2);
-   fclose(f);
-}
-
-
-
-static void print_flags( const char *msg, GLuint flags ) 
-{
-   fprintf(stderr, 
-	   "%s (0x%x): %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
-	   msg, flags,
-	   (flags & GLVERTEX) ? "glVertex, " : "",
-	   (flags & DRAW_ARRAYS) ? "glDrawArrays, " : "",
-	   (flags & DRAW_ELTS) ? "glDrawElements, " : "",
-	   (flags & ARRAY_ELT) ? "glArrayElement, " : "",
-	   (flags & LOCKED) ? "locked arrays, " : "",
-	   (flags & TRIANGLES) ? "GL_TRIANGLES, " : "",
-	   (flags & STRIPS) ? "GL_TRIANGLE_STRIP, " : "",
-	   (flags & POINTS) ? "GL_POINTS, " : "",
-	   (flags & DISPLAYLIST) ? "as a displaylist, " : "",
-	   (flags & LIT) ? "lit, " : "",
-	   (flags & UNLIT) ? "unlit, " : "",
-	   (flags & REFLECT) ? "reflect, " : "",
-	   (flags & SHADE_FLAT) ? "flat-shaded, " : "",
-	   (flags & USER_CLIP) ? "user_clip, " : "",
-	   (flags & MATERIALS) ? "materials, " : "",
-	   (flags & FOG) ? "fog, " : "",
-	   (flags & STIPPLE) ? "stipple, " : "",
-	   (flags & POLYGON_LINE) ? "polygon mode line, " : "");
-}
-
-
-
-struct data_idx {
-   float *data;
-   int idx;
-   int uniq_idx;
-};
-
-
-#define COMPARE_FUNC( AXIS )                            \
-static int compare_axis_##AXIS( const void *a, const void *b )	\
-{							\
-   float t = ( (*(struct data_idx *)a).data[AXIS] -	\
-	       (*(struct data_idx *)b).data[AXIS] );	\
-   							\
-   if (t < 0) return -1;				\
-   if (t > 0) return 1;					\
-   return 0;						\
-}
-
-COMPARE_FUNC(0)
-COMPARE_FUNC(1)
-COMPARE_FUNC(2)
-COMPARE_FUNC(3)
-COMPARE_FUNC(4)
-COMPARE_FUNC(5)
-COMPARE_FUNC(6)
-
-int (*(compare[7]))( const void *a, const void *b ) =
-{
-   compare_axis_0,
-   compare_axis_1,
-   compare_axis_2,
-   compare_axis_3,
-   compare_axis_4,
-   compare_axis_5,
-   compare_axis_6,
-};
-
-
-#define VEC_ELT(f, s, i)  (float *)(((char *)f) + s * i)
-
-static int sort_axis( int axis,
-		      int vec_size,
-		      int vec_stride,
-		      struct data_idx *indices,
-		      int start,
-		      int finish,
-		      float *out,
-		      int uniq,
-		      const float fudge )
-{
-   int i;
-
-   if (finish-start > 2)
-   {
-      qsort( indices+start, finish-start, sizeof(*indices), compare[axis] );
-   }
-   else if (indices[start].data[axis] > indices[start+1].data[axis])
-   {
-      struct data_idx tmp = indices[start];
-      indices[start] = indices[start+1];
-      indices[start+1] = tmp;
-   }
-
-   if (axis == vec_size-1) {
-      for (i = start ; i < finish ; ) {
-	 float max = indices[i].data[axis] + fudge;
-	 float *dest = VEC_ELT(out, vec_stride, uniq);
-	 int j;
-
-	 for (j = 0 ; j < vec_size ; j++)
-	    dest[j] = indices[i].data[j];
-
-	 for ( ; i < finish && max >= indices[i].data[axis]; i++)
-	    indices[i].uniq_idx = uniq;
-
-	 uniq++;
-      }
-   } else {
-      for (i = start ; i < finish ; ) {
-	 int j = i + 1;
-	 float max = indices[i].data[axis] + fudge;
-	 while (j < finish && max >= indices[j].data[axis]) j++;
-	 if (j == i+1) {
-	    float *dest = VEC_ELT(out, vec_stride, uniq);
-	    int k;
-
-	    indices[i].uniq_idx = uniq;
-
-	    for (k = 0 ; k < vec_size ; k++)
-	       dest[k] = indices[i].data[k];
-
-	    uniq++;
-	 } else {
-	    uniq = sort_axis( axis+1, vec_size, vec_stride,
-			      indices, i, j, out, uniq, fudge );
-	 }
-	 i = j;
-      }
-   }
-
-   return uniq;
-}
-
-
-static void extract_indices1( const struct data_idx *in, unsigned int *out,
-			      int n )
-{
-   int i;
-   for ( i = 0 ; i < n ; i++ ) {
-      out[in[i].idx] = in[i].uniq_idx;
-   }
-}
-
-
-static void compactify_arrays(void)
-{
-   int i;
-   struct data_idx *ind;
-
-   ind = (struct data_idx *) malloc( sizeof(struct data_idx) * numverts );
-
-   for (i = 0 ; i < numverts ; i++) {
-      ind[i].idx = i;
-      ind[i].data = data[i];
-   }
-
-   numuniq = sort_axis(0,
-		       sizeof(compressed_data[0])/sizeof(float),
-		       sizeof(compressed_data[0]),
-		       ind,
-		       0,
-		       numverts,
-		       (float *)compressed_data,
-		       0,
-		       1e-6);
-
-   printf("Nr unique vertex/normal pairs: %d\n", numuniq);
-
-   extract_indices1( ind, indices, numverts );
-   free( ind );
-}
-
-static void expand_arrays(void) 
-{
-   int i;
-   int parity = 0;
-   for (i = 2 ; i < numverts ; i++, parity ^= 1) {
-      int v0 = i-2+parity;
-      int v1 = i-1-parity;
-      int v2 = i;
-      memcpy( expanded_data[(i-2)*3+0], data[v0], sizeof(data[0]) );
-      memcpy( expanded_data[(i-2)*3+1], data[v1], sizeof(data[0]) );
-      memcpy( expanded_data[(i-2)*3+2], data[v2], sizeof(data[0]) );
-   }
-}
-
-static float myrand( float max )
-{
-   return max*rand()/(RAND_MAX+1.0);
-}
-
-
-static void make_tri_indices( void )
-{
-   unsigned int *v = tri_indices;
-   unsigned int parity = 0;
-   int i, j;
-
-   for (j=2;j<numverts;j++,parity^=1) {
-      if (parity) {
-	 *v++ = indices[j-1];
-	 *v++ = indices[j-2];
-	 *v++ = indices[j];
-      } else {
-	 *v++ = indices[j-2];
-	 *v++ = indices[j-1];
-	 *v++ = indices[j];
-      }
-   }
-
-   num_tri_verts = v - tri_indices;
-   printf("num_tri_verts: %d\n", num_tri_verts);
-
-   for (i = j = 0 ; i < num_tri_verts ; i += 600, j++) {
-      col[j][3] = 1;
-      col[j][2] = myrand(1);
-      col[j][1] = myrand(1);
-      col[j][0] = myrand(1);
-   }
-
-   for (i = 0; i < numverts ; i++)
-      strip_indices[i] = i;
-}
-
-#define MIN(x,y) (x < y) ? x : y
-
-static void draw_surface( unsigned int with_state )
-{
-   GLint i, j;
-   
-   if (with_state & DISPLAYLIST) {
-      if ((with_state & (RENDER_STYLE_MASK|PRIMITIVE_MASK|MATERIAL_MASK)) != 
-	  dlist_state) {
-	 /* 
-	  */
-	 fprintf(stderr, "rebuilding displaylist\n");
-
-	 if (dlist_state)
-	    glDeleteLists( surf1, 1 );
-
-	 dlist_state = with_state & (RENDER_STYLE_MASK|PRIMITIVE_MASK|
-				     MATERIAL_MASK);
-	 surf1 = glGenLists(1);
-	 glNewList(surf1, GL_COMPILE);
-	 draw_surface( dlist_state );
-	 glEndList();
-      }
-
-      glCallList( surf1 );
-      return;
-   }
-
-   switch (with_state & (RENDER_STYLE_MASK|PRIMITIVE_MASK)) {
-#ifdef GL_EXT_vertex_array
-
-   case (DRAW_ELTS|TRIANGLES):
-      if (with_state & MATERIALS) {
-	 for (j = i = 0 ; i < num_tri_verts ; i += 600, j++) {
-	    GLuint nr = MIN(num_tri_verts-i, 600);
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, col[j]);
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col[j]);
-	    glDrawElements( GL_TRIANGLES, nr, GL_UNSIGNED_INT, tri_indices+i );
-	 }
-      } else {
-	 glDrawElements( GL_TRIANGLES, num_tri_verts, GL_UNSIGNED_INT,
-			 tri_indices );
-      }
-      break;
-
-   case (DRAW_ARRAYS|TRIANGLES):
-      glDrawArraysEXT( GL_TRIANGLES, 0, (numverts-2)*3 );
-      break;
-
-   case (ARRAY_ELT|TRIANGLES):
-      if (with_state & MATERIALS) {
-	 for (j = i = 0 ; i < num_tri_verts ; i += 600, j++) {
-	    GLuint nr = MIN(num_tri_verts-i, 600);
-	    GLuint k;
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, col[j]);
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col[j]);
-	    glBegin( GL_TRIANGLES );
-	    for (k = 0 ; k < nr ; k++)
-	       glArrayElement( tri_indices[i+k] );
-	    glEnd();
-	 }
-      } else {
-	 glBegin( GL_TRIANGLES );
-	 for (i = 0 ; i < num_tri_verts ; i++)
-	    glArrayElement( tri_indices[i] );
-
-	 glEnd();
-      }
-      break;
-
-
-      /* Uses the original arrays (including duplicate elements):
-       */
-   case (DRAW_ARRAYS|STRIPS):
-      glDrawArraysEXT( GL_TRIANGLE_STRIP, 0, numverts );
-      break;
-   case (DRAW_ELTS|STRIPS):
-      glDrawElements( GL_TRIANGLE_STRIP, numverts,
-		      GL_UNSIGNED_INT, strip_indices );
-      break;
-
-      /* Uses the original arrays (including duplicate elements):
-       */
-   case (ARRAY_ELT|STRIPS):
-      glBegin( GL_TRIANGLE_STRIP );
-      for (i = 0 ; i < numverts ; i++)
-	 glArrayElement( i );
-      glEnd();
-      break;
-
-   case (DRAW_ARRAYS|POINTS):
-      glDrawArraysEXT( GL_POINTS, 0, numuniq );
-      break;
-   case (DRAW_ELTS|POINTS):
-      /* can use numuniq with strip_indices as strip_indices[i] == i.
-       */
-      glDrawElements( GL_POINTS, numuniq, 
-		      GL_UNSIGNED_INT, strip_indices );
-      break;
-   case (ARRAY_ELT|POINTS):
-      /* just emit each unique element once:
-       */
-      glBegin( GL_POINTS );
-      for (i = 0 ; i < numuniq ; i++)
-	 glArrayElement( i );
-      glEnd();
-      break;
-#endif
-
-   case (GLVERTEX|TRIANGLES):
-      if (with_state & MATERIALS) {
-	 for (j = i = 0 ; i < num_tri_verts ; i += 600, j++) {
-	    GLuint nr = MIN(num_tri_verts-i, 600);
-	    GLuint k;
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, col[j]);
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col[j]);
-	    glBegin( GL_TRIANGLES );
-	    for (k = 0 ; k < nr ; k++) {
-	       glNormal3fv( &compressed_data[tri_indices[i+k]][3] );
-	       glVertex3fv( &compressed_data[tri_indices[i+k]][0] );
-	    }
-	    glEnd();
-	 }
-      } else {
-	 glBegin( GL_TRIANGLES );
-	 for (i = 0 ; i < num_tri_verts ; i++) {
-	    glNormal3fv( &compressed_data[tri_indices[i]][3] );
-	    glVertex3fv( &compressed_data[tri_indices[i]][0] );
-	 }
-	 glEnd();
-      }
-      break;
-
-   case (GLVERTEX|POINTS):
-      /* Renders all points, but not in strip order...  Shouldn't be a
-       * problem, but people may be confused as to why points are so
-       * much faster in this demo...  And why cva doesn't help them...
-       */
-      glBegin( GL_POINTS );
-      for ( i = 0 ; i < numuniq ; i++ ) {
-         glNormal3fv( &compressed_data[i][3] );
-         glVertex3fv( &compressed_data[i][0] );
-      }
-      glEnd();
-      break;
-
-   case (GLVERTEX|STRIPS):
-      glBegin( GL_TRIANGLE_STRIP );
-      for (i=0;i<numverts;i++) {
-         glNormal3fv( &data[i][3] );
-         glVertex3fv( &data[i][0] );
-      }
-      glEnd();
-      break;
-
-   default:
-      fprintf(stderr, "unimplemented mode %x...\n", 
-	      (with_state & (RENDER_STYLE_MASK|PRIMITIVE_MASK)));
-      break;
-   }
-}
-
-
-
-static void Display(void)
-{
-    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-    draw_surface( state );
-    glFlush();
-    if (doubleBuffer) glutSwapBuffers();
-}
-
-
-/* KW: only do this when necessary, so CVA can re-use results.
- */
-static void set_matrix( void )
-{
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, dist );
-   glRotatef( yrot, 0.0, 1.0, 0.0 );
-   glRotatef( xrot, 1.0, 0.0, 0.0 );
-}
-
-static void Benchmark( float xdiff, float ydiff )
-{
-   int startTime, endTime;
-   int draws;
-   double seconds, fps, triPerSecond;
-
-   printf("Benchmarking...\n");
-
-   draws = 0;
-   startTime = glutGet(GLUT_ELAPSED_TIME);
-   xrot = 0.0;
-   do {
-      xrot += xdiff;
-      yrot += ydiff;
-      set_matrix();
-      Display();
-      draws++;
-      endTime = glutGet(GLUT_ELAPSED_TIME);
-   } while (endTime - startTime < 5000);   /* 5 seconds */
-
-   /* Results */
-   seconds = (double) (endTime - startTime) / 1000.0;
-   triPerSecond = (numverts - 2) * draws / seconds;
-   fps = draws / seconds;
-   printf("Result:  triangles/sec: %g  fps: %g\n", triPerSecond, fps);
-}
-
-
-static void InitMaterials(void)
-{
-    static float ambient[] = {0.1, 0.1, 0.1, 1.0};
-    static float diffuse[] = {0.5, 1.0, 1.0, 1.0};
-    static float position0[] = {0.0, 0.0, 20.0, 0.0};
-    static float position1[] = {0.0, 0.0, -20.0, 0.0};
-    static float front_mat_shininess[] = {60.0};
-    static float front_mat_specular[] = {0.2, 0.2, 0.2, 1.0};
-    static float front_mat_diffuse[] = {0.5, 0.28, 0.38, 1.0};
-    /*
-    static float back_mat_shininess[] = {60.0};
-    static float back_mat_specular[] = {0.5, 0.5, 0.2, 1.0};
-    static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0};
-    */
-    static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0};
-    static float lmodel_twoside[] = {GL_FALSE};
-
-    glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
-    glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
-    glLightfv(GL_LIGHT0, GL_POSITION, position0);
-    glEnable(GL_LIGHT0);
-
-    glLightfv(GL_LIGHT1, GL_AMBIENT, ambient);
-    glLightfv(GL_LIGHT1, GL_DIFFUSE, diffuse);
-    glLightfv(GL_LIGHT1, GL_POSITION, position1);
-    glEnable(GL_LIGHT1);
-
-    glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
-    glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
-
-    glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, front_mat_shininess);
-    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, front_mat_specular);
-    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, front_mat_diffuse);
-
-    glPolygonStipple (halftone);
-}
-
-
-
-#define UPDATE(o,n,mask) (o&=~mask, o|=n&mask)
-#define CHANGED(o,n,mask) ((n&mask) && (n&mask) != (o&mask) )
-
-static void ModeMenu(int m)
-{
-   m &= allowed;
-
-   if (!m) return;
-
-   if (m==QUIT)
-      exit(0);
-
-   if (m==GLINFO) {
-      printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
-      printf("GL_EXTENSIONS: %s\n", (char *) glGetString(GL_EXTENSIONS));
-      printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
-      return;
-   }
-
-   if (CHANGED(state, m, FILTER_MASK)) {
-      UPDATE(state, m, FILTER_MASK);
-      if (m & LINEAR_FILTER) {
-	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-      } else {
-	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-      }
-   }
-
-   if (CHANGED(state, m, LIGHT_MASK)) {
-      UPDATE(state, m, LIGHT_MASK);
-      if (m & LIT) {
-	 glEnable(GL_LIGHTING);
-	 glDisable(GL_TEXTURE_GEN_S);
-	 glDisable(GL_TEXTURE_GEN_T);
-	 glDisable(GL_TEXTURE_2D);
-      }
-      else if (m & UNLIT) {
-	 glDisable(GL_LIGHTING);
-	 glDisable(GL_TEXTURE_GEN_S);
-	 glDisable(GL_TEXTURE_GEN_T);
-	 glDisable(GL_TEXTURE_2D);
-      }
-      else if (m & REFLECT) {
-	 glDisable(GL_LIGHTING);
-	 glEnable(GL_TEXTURE_GEN_S);
-	 glEnable(GL_TEXTURE_GEN_T);
-	 glEnable(GL_TEXTURE_2D);
-      }
-   }
-
-   if (CHANGED(state, m, SHADE_MASK)) {
-      UPDATE(state, m, SHADE_MASK);
-      if (m & SHADE_SMOOTH)
-	 glShadeModel(GL_SMOOTH);
-      else
-	 glShadeModel(GL_FLAT);
-   }
-
-
-   if (CHANGED(state, m, CLIP_MASK)) {
-      UPDATE(state, m, CLIP_MASK);
-      if (m & USER_CLIP) {
-	 glEnable(GL_CLIP_PLANE0);
-      } else {
-	 glDisable(GL_CLIP_PLANE0);
-      }
-   }
-
-   if (CHANGED(state, m, FOG_MASK)) {
-      UPDATE(state, m, FOG_MASK);
-      if (m & FOG) {
-	 glEnable(GL_FOG);
-      }
-      else {
-	 glDisable(GL_FOG);
-      }
-   }
-
-   if (CHANGED(state, m, STIPPLE_MASK)) {
-      UPDATE(state, m, STIPPLE_MASK);
-      if (m & STIPPLE) {
-	 glEnable(GL_POLYGON_STIPPLE);
-      }
-      else {
-	 glDisable(GL_POLYGON_STIPPLE);
-      }
-   }
-
-   if (CHANGED(state, m, POLYGON_MASK)) {
-      UPDATE(state, m, POLYGON_MASK);
-      if (m & POLYGON_FILL) {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-      }
-      else {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-      }
-   }
-
-#ifdef GL_EXT_vertex_array
-   if (CHANGED(state, m, (LOCK_MASK|RENDER_STYLE_MASK|PRIMITIVE_MASK)))
-   {
-      if (m & (PRIMITIVE_MASK)) {
-	 UPDATE(state, m, (PRIMITIVE_MASK));
-      }
-
-      if (m & (RENDER_STYLE_MASK)) {
-	 UPDATE(state, m, (RENDER_STYLE_MASK));
-      }
-
-      if (m & LOCK_MASK) {
-	 UPDATE(state, m, (LOCK_MASK));
-      }
-
-
-      print_flags("primitive", state & PRIMITIVE_MASK);
-      print_flags("render style", state & RENDER_STYLE_MASK);
-
-      if ((state & PRIMITIVE_MASK) != STRIPS &&
-	  ((state & RENDER_STYLE_MASK) == DRAW_ELTS ||
-	   (state & RENDER_STYLE_MASK) == ARRAY_ELT || 
-	   (state & PRIMITIVE_MASK) == POINTS))
-      {
-	 fprintf(stderr, "enabling small arrays\n");
-	 /* Rendering any primitive with draw-element/array-element
-	  *  --> Can't do strips here as ordering has been lost in
-	  *  compaction process...
-	  */
-	 glVertexPointerEXT( 3, GL_FLOAT, sizeof(data[0]), numuniq,
-			     compressed_data );
-	 glNormalPointerEXT( GL_FLOAT, sizeof(data[0]), numuniq,
-			     &compressed_data[0][3]);
-#ifdef GL_EXT_compiled_vertex_array
-	 if (allowed & LOCKED) {
-	    if (state & LOCKED) {
-	       glLockArraysEXT( 0, numuniq );
-	    } else {
-	       glUnlockArraysEXT();
-	    }
-	 }
-#endif
-      }
-      else if ((state & PRIMITIVE_MASK) == TRIANGLES &&
-	       (state & RENDER_STYLE_MASK) == DRAW_ARRAYS) {
-	 fprintf(stderr, "enabling big arrays\n");
-	 /* Only get here for TRIANGLES and drawarrays
-	  */
-	 glVertexPointerEXT( 3, GL_FLOAT, sizeof(data[0]), (numverts-2) * 3,
-			     expanded_data );
-	 glNormalPointerEXT( GL_FLOAT, sizeof(data[0]), (numverts-2) * 3,
-			     &expanded_data[0][3]);
-
-#ifdef GL_EXT_compiled_vertex_array
-	 if (allowed & LOCKED) {
-	    if (state & LOCKED) {
-	       glLockArraysEXT( 0, (numverts-2)*3 );
-	    } else {
-	       glUnlockArraysEXT();
-	    }
-	 }
-#endif
-      }
-      else {
-	 fprintf(stderr, "enabling normal arrays\n");
-	 glVertexPointerEXT( 3, GL_FLOAT, sizeof(data[0]), numverts, data );
-	 glNormalPointerEXT( GL_FLOAT, sizeof(data[0]), numverts, &data[0][3]);
-#ifdef GL_EXT_compiled_vertex_array
-	 if (allowed & LOCKED) {
-	    if (state & LOCKED) {
-	       glLockArraysEXT( 0, numverts );
-	    } else {
-	       glUnlockArraysEXT();
-	    }
-	 }
-#endif
-      }
-
-   }
-#endif
-
-
-   if (m & DLIST_MASK) {
-      UPDATE(state, m, DLIST_MASK);
-   }
-
-   if (m & MATERIAL_MASK) {
-      UPDATE(state, m, MATERIAL_MASK);
-   }
-
-   print_flags("new flags", state);
-
-   glutPostRedisplay();
-}
-
-
-
-static void Init(int argc, char *argv[])
-{
-   GLfloat fogColor[4] = {0.5,1.0,0.5,1.0};
-
-   xrot = 0;
-   yrot = 0;
-   dist = -6;
-   plane[0] = 1.0;
-   plane[1] = 0.0;
-   plane[2] = -1.0;
-   plane[3] = 0.0;
-
-   glClearColor(0.0, 0.0, 1.0, 0.0);
-   glEnable( GL_DEPTH_TEST );
-   glEnable( GL_VERTEX_ARRAY_EXT );
-   glEnable( GL_NORMAL_ARRAY_EXT );
-
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5, 25 );
-
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glClipPlane(GL_CLIP_PLANE0, plane);
-
-   InitMaterials();
-
-   set_matrix();
-
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-   glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
-
-   glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-   glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-
-
-   /* Green fog is easy to see */
-   glFogi(GL_FOG_MODE,GL_EXP2);
-   glFogfv(GL_FOG_COLOR,fogColor);
-   glFogf(GL_FOG_DENSITY,0.15);
-   glHint(GL_FOG_HINT,GL_DONT_CARE);
-
-   {
-      static int firsttime = 1;
-      if (firsttime) {
-	 firsttime = 0;
-	 compactify_arrays();
-	 expand_arrays();
-	 make_tri_indices();
-
-	 if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) {
-	    printf("Error: couldn't load texture image\n");
-	    exit(1);
-	 }
-      }
-   }
-
-   ModeMenu(SHADE_SMOOTH|
-	    LIT|
-	    POINT_FILTER|
-	    NO_USER_CLIP|
-	    NO_MATERIALS|
-	    NO_FOG|
-	    NO_STIPPLE|
-	    IMMEDIATE|
-	    STRIPS|
-	    UNLOCKED|
-	    GLVERTEX);
-
-   if (PrintInfo) {
-      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
-      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
-      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
-      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
-   }
-}
-
-
-
-static void Reshape(int width, int height)
-{
-    glViewport(0, 0, (GLint)width, (GLint)height);
-}
-
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-   case 27:
-      exit(0);
-   case 'f':
-      ModeMenu((state ^ FOG_MASK) & FOG_MASK);
-      break;
-   case 's':
-      ModeMenu((state ^ SHADE_MASK) & SHADE_MASK);
-      break;
-   case 't':
-      ModeMenu((state ^ STIPPLE_MASK) & STIPPLE_MASK);
-      break;
-   case 'l':
-      ModeMenu((state ^ LIGHT_MASK) & (LIT|UNLIT));
-      break;
-   case 'm':
-      ModeMenu((state ^ MATERIAL_MASK) & MATERIAL_MASK);
-      break;
-   case 'c':
-      ModeMenu((state ^ CLIP_MASK) & CLIP_MASK);
-      break;
-   case 'v':
-      ModeMenu((LOCKED|IMMEDIATE|DRAW_ELTS|TRIANGLES) & allowed);
-      break;
-   case 'V':
-      ModeMenu(UNLOCKED|IMMEDIATE|GLVERTEX|STRIPS);
-      break;
-   case 'b':
-      Benchmark(5.0, 0);
-      break;
-   case 'B':
-      Benchmark(0, 5.0);
-      break;
-   case 'i':
-      dist += .25;
-      set_matrix();
-      glutPostRedisplay();
-      break;
-   case 'I':
-      dist -= .25;
-      set_matrix();
-      glutPostRedisplay();
-      break;
-   case '-':
-   case '_':
-      plane[3] += 2.0;
-      glMatrixMode(GL_MODELVIEW);
-      glLoadIdentity();
-      glClipPlane(GL_CLIP_PLANE0, plane);
-      set_matrix();
-      glutPostRedisplay();
-      break;
-   case '+':
-   case '=':
-      plane[3] -= 2.0;
-      glMatrixMode(GL_MODELVIEW);
-      glLoadIdentity();
-      glClipPlane(GL_CLIP_PLANE0, plane);
-      set_matrix();
-      glutPostRedisplay();
-      break;
-   case ' ':
-      Init(0,0);
-      break;
-   }
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-   case GLUT_KEY_LEFT:
-      yrot -= 15.0;
-      break;
-   case GLUT_KEY_RIGHT:
-      yrot += 15.0;
-      break;
-   case GLUT_KEY_UP:
-      xrot += 15.0;
-      break;
-   case GLUT_KEY_DOWN:
-      xrot -= 15.0;
-      break;
-   default:
-      return;
-   }
-   set_matrix();
-   glutPostRedisplay();
-}
-
-
-
-static GLint Args(int argc, char **argv)
-{
-   GLint i;
-   GLint mode = 0;
-
-   for (i = 1; i < argc; i++) {
-      if (strcmp(argv[i], "-sb") == 0) {
-         doubleBuffer = GL_FALSE;
-      }
-      else if (strcmp(argv[i], "-db") == 0) {
-         doubleBuffer = GL_TRUE;
-      }
-      else if (strcmp(argv[i], "-info") == 0) {
-         PrintInfo = GL_TRUE;
-      }
-      else if (strcmp(argv[i], "-10") == 0) {
-         maxverts = 10;
-      }
-      else if (strcmp(argv[i], "-100") == 0) {
-	 maxverts = 100;
-      }
-      else if (strcmp(argv[i], "-1000") == 0) {
-	 maxverts = 1000;
-      }
-      else {
-         printf("%s (Bad option).\n", argv[i]);
-	 return QUIT;
-      }
-   }
-
-   return mode;
-}
-
-int main(int argc, char **argv)
-{
-   GLenum type;
-   char *extensions;
-
-   GLuint arg_mode = Args(argc, argv);
-
-   if (arg_mode & QUIT)
-      exit(0);
-
-   read_surface( "isosurf.dat" );
-
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(400, 400);
-
-   type = GLUT_DEPTH;
-   type |= GLUT_RGB;
-   type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
-   glutInitDisplayMode(type);
-
-   if (glutCreateWindow("Isosurface") <= 0) {
-      exit(0);
-   }
-
-   /* Make sure server supports the vertex array extension */
-   extensions = (char *) glGetString( GL_EXTENSIONS );
-
-   if (!strstr( extensions, "GL_EXT_vertex_array" ))
-   {
-      printf("Vertex arrays not supported by this renderer\n");
-      allowed &= ~(LOCKED|DRAW_ARRAYS|DRAW_ELTS|ARRAY_ELT);
-   }
-   else if (!strstr( extensions, "GL_EXT_compiled_vertex_array" ))
-   {
-      printf("Compiled vertex arrays not supported by this renderer\n");
-      allowed &= ~LOCKED;
-   }
-
-   Init(argc, argv);
-   ModeMenu(arg_mode);
-
-   glutCreateMenu(ModeMenu);
-   glutAddMenuEntry("GL info",               GLINFO);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Lit",                   LIT);
-   glutAddMenuEntry("Unlit",                 UNLIT);
-   glutAddMenuEntry("Reflect",               REFLECT);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Smooth",                SHADE_SMOOTH);
-   glutAddMenuEntry("Flat",                  SHADE_FLAT);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Fog",                   FOG);
-   glutAddMenuEntry("No Fog",                NO_FOG);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Stipple",               STIPPLE);
-   glutAddMenuEntry("No Stipple",            NO_STIPPLE);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Polygon Mode Fill",     POLYGON_FILL);
-   glutAddMenuEntry("Polygon Mode Line",     POLYGON_LINE);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Point Filtered",        POINT_FILTER);
-   glutAddMenuEntry("Linear Filtered",       LINEAR_FILTER);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("GL_TRIANGLES",          TRIANGLES);
-   glutAddMenuEntry("GL_TRIANGLE_STRIPS",    STRIPS);
-   glutAddMenuEntry("GL_POINTS",             POINTS);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Displaylist",           DISPLAYLIST);
-   glutAddMenuEntry("Immediate",             IMMEDIATE);
-   glutAddMenuEntry("", 0);
-   if (allowed & LOCKED) {
-      glutAddMenuEntry("Locked Arrays (CVA)", LOCKED);
-      glutAddMenuEntry("Unlocked Arrays",     UNLOCKED);
-      glutAddMenuEntry("", 0);
-   }
-   glutAddMenuEntry("glVertex",               GLVERTEX);
-   if (allowed & DRAW_ARRAYS) {
-      glutAddMenuEntry("glDrawElements",      DRAW_ELTS);
-      glutAddMenuEntry("glDrawArrays",	      DRAW_ARRAYS);
-      glutAddMenuEntry("glArrayElement",      ARRAY_ELT);
-   }
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Quit",                   QUIT);
-   glutAttachMenu(GLUT_RIGHT_BUTTON);
-
-   glutReshapeFunc(Reshape);
-   glutKeyboardFunc(Key);
-   glutSpecialFunc(SpecialKey);
-   glutDisplayFunc(Display);
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/isosurf.dat b/nx-X11/extras/Mesa_6.4.1/progs/demos/isosurf.dat
deleted file mode 100644
index 5cadecdb4..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/isosurf.dat
+++ /dev/null
@@ -1,7179 +0,0 @@
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--0.350000 -0.248400 -0.365800  0.184000 0.424000 -0.880000
--0.350000 -0.251000 -0.367200  0.240000 0.168000 -0.952000
--0.345700 -0.251000 -0.365800  0.320000 0.336000 -0.880000
--0.345700 -0.251000 -0.365800  0.320000 0.336000 -0.880000
--0.250000 -0.342900 -0.365800  0.504000 0.512000 -0.680000
--0.250000 -0.342900 -0.365800  0.504000 0.512000 -0.680000
--0.250000 -0.351500 -0.379700  0.552000 0.712000 -0.416000
--0.241400 -0.351500 -0.365800  0.488000 0.640000 -0.576000
--0.241400 -0.351500 -0.365800  0.488000 0.640000 -0.576000
--0.200000 -0.365300 -0.365800  0.504000 0.768000 -0.376000
--0.200000 -0.365300 -0.365800  0.504000 0.768000 -0.376000
--0.200000 -0.393200 -0.426800  0.696000 0.632000 -0.328000
--0.151700 -0.401700 -0.365800  0.568000 0.104000 -0.808000
--0.194300 -0.401700 -0.426800  0.792000 0.416000 -0.432000
--0.194300 -0.401700 -0.426800  0.792000 0.416000 -0.432000
--0.044700 -0.251000 -0.365800  -0.216000 0.376000 -0.896000
--0.044700 -0.251000 -0.365800  -0.216000 0.376000 -0.896000
-0.000000 -0.251000 -0.386300  -0.352000 0.496000 -0.792000
-0.000000 -0.238800 -0.365800  -0.192000 0.648000 -0.728000
-0.000000 -0.238800 -0.365800  -0.192000 0.648000 -0.728000
-0.100000 -0.224900 -0.365800  0.352000 0.456000 -0.808000
-0.100000 -0.224900 -0.365800  0.352000 0.456000 -0.808000
-0.100000 -0.251000 -0.380100  0.472000 -0.384000 -0.784000
-0.118000 -0.251000 -0.365800  0.536000 -0.224000 -0.808000
-0.100000 -0.263400 -0.365800  0.480000 -0.672000 -0.544000
-0.100000 -0.263400 -0.365800  0.480000 -0.672000 -0.544000
-0.350000 -0.354600 -0.365800  -0.264000 -0.632000 -0.720000
-0.350000 -0.354600 -0.365800  -0.264000 -0.632000 -0.720000
-0.350000 -0.351500 -0.368100  -0.440000 0.096000 -0.888000
-0.348000 -0.351500 -0.365800  -0.720000 -0.032000 -0.680000
-0.348000 -0.351500 -0.365800  -0.720000 -0.032000 -0.680000
-0.450000 0.007700 -0.365800  -0.264000 0.744000 -0.600000
-0.450000 0.007700 -0.365800  -0.264000 0.744000 -0.600000
-0.431500 0.000000 -0.365800  -0.424000 0.312000 -0.840000
-0.450000 0.000000 -0.377000  -0.360000 0.400000 -0.840000
-0.450000 -0.014200 -0.365800  -0.336000 -0.568000 -0.744000
-0.450000 -0.014200 -0.365800  -0.336000 -0.568000 -0.744000
-0.650000 -0.245700 -0.365800  0.168000 0.856000 -0.480000
-0.650000 -0.245700 -0.365800  0.168000 0.856000 -0.480000
-0.650000 -0.251000 -0.378600  0.328000 0.752000 -0.560000
-0.678000 -0.251000 -0.365800  0.264000 0.520000 -0.808000
-0.650000 -0.267900 -0.365800  0.280000 -0.440000 -0.848000
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/lodbias.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/lodbias.c
deleted file mode 100644
index a4db22e26..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/lodbias.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- * GL_EXT_texture_lod_bias demo
- *
- * Thanks to Michael Vance for implementing this extension in Mesa.
- *
- * Brian Paul
- * 20 March 2000
- *
- * Copyright (C) 2000  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.
- */
-
-
-#include <assert.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <math.h>
-#include <GL/glut.h>
-#include <GL/glext.h>
-
-#include "readtex.h"
-
-#define TEXTURE_FILE "../images/girl.rgb"
-
-static GLfloat Xrot = 0, Yrot = -30, Zrot = 0;
-static GLboolean Anim = GL_TRUE;
-static GLint Bias = 0, BiasStepSign = +1; /* ints avoid fp precision problem */
-static GLint BiasMin = -400, BiasMax = 400;
-
-
-
-static void
-PrintString(const char *s)
-{
-   while (*s) {
-      glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
-      s++;
-   }
-}
-
-static void Idle( void )
-{
-   static int lastTime = 0;
-   int time = glutGet(GLUT_ELAPSED_TIME);
-   int step;
-
-   if (lastTime == 0)
-      lastTime = time;
-   else if (time - lastTime < 10)
-      return;
-
-   step = (time - lastTime) / 10 * BiasStepSign;
-   lastTime = time;
-
-   Bias += step;
-   if (Bias < BiasMin) {
-      Bias = BiasMin;
-      BiasStepSign = +1;
-   }
-   else if (Bias > BiasMax) {
-      Bias = BiasMax;
-      BiasStepSign = -1;
-   }
-
-   glutPostRedisplay();
-}
-
-
-static void Display( void )
-{
-   char str[100];
-
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho(-1, 1, -1, 1, -1, 1);
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   
-   glDisable(GL_TEXTURE_2D);
-   glColor3f(1,1,1);
-   glRasterPos3f(-0.9, -0.9, 0.0);
-   sprintf(str, "Texture LOD Bias = %4.1f", Bias * 0.01);
-   PrintString(str);
-
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -8.0 );
-
-   glPushMatrix();
-   glRotatef(Xrot, 1, 0, 0);
-   glRotatef(Yrot, 0, 1, 0);
-   glRotatef(Zrot, 0, 0, 1);
-
-   glEnable(GL_TEXTURE_2D);
-   glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, 0.01 * Bias);
-
-   glBegin(GL_POLYGON);
-   glTexCoord2f(0, 0);  glVertex2f(-1, -1);
-   glTexCoord2f(2, 0);  glVertex2f( 1, -1);
-   glTexCoord2f(2, 2);  glVertex2f( 1,  1);
-   glTexCoord2f(0, 2);  glVertex2f(-1,  1);
-   glEnd();
-
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   const GLfloat step = 3.0;
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 'a':
-         Anim = !Anim;
-         if (Anim)
-            glutIdleFunc(Idle);
-         else
-            glutIdleFunc(NULL);
-         break;
-      case 'z':
-         Zrot -= step;
-         break;
-      case 'Z':
-         Zrot += step;
-         break;
-      case 'b':
-         Bias -= 10;
-         break;
-      case 'B':
-         Bias += 10;
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   const GLfloat step = 3.0;
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         Xrot -= step;
-         break;
-      case GLUT_KEY_DOWN:
-         Xrot += step;
-         break;
-      case GLUT_KEY_LEFT:
-         Yrot -= step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Yrot += step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
-   GLfloat maxBias;
-
-   if (!glutExtensionSupported("GL_EXT_texture_lod_bias")) {
-      printf("Sorry, GL_EXT_texture_lod_bias not supported by this renderer.\n");
-      exit(1);
-   }
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-   if (glutExtensionSupported("GL_SGIS_generate_mipmap")) {
-      /* test auto mipmap generation */
-      GLint width, height, i;
-      GLenum format;
-      GLubyte *image = LoadRGBImage(TEXTURE_FILE, &width, &height, &format);
-      if (!image) {
-         printf("Error: could not load texture image %s\n", TEXTURE_FILE);
-         exit(1);
-      }
-      /* resize to 256 x 256 */
-      if (width != 256 || height != 256) {
-         GLubyte *newImage = malloc(256 * 256 * 4);
-         gluScaleImage(format, width, height, GL_UNSIGNED_BYTE, image,
-                       256, 256, GL_UNSIGNED_BYTE, newImage);
-         free(image);
-         image = newImage;
-      }
-      printf("Using GL_SGIS_generate_mipmap\n");
-      glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
-      glTexImage2D(GL_TEXTURE_2D, 0, format, 256, 256, 0,
-                   format, GL_UNSIGNED_BYTE, image);
-      free(image);
-
-      /* make sure mipmap was really generated correctly */
-      width = height = 256;
-      for (i = 0; i < 9; i++) {
-         GLint w, h;
-         glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_WIDTH, &w);
-         glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_HEIGHT, &h);
-         printf("Level %d size: %d x %d\n", i, w, h);
-         assert(w == width);
-         assert(h == height);
-         width /= 2;
-         height /= 2;
-      }
-
-   }
-   else if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) {
-      printf("Error: could not load texture image %s\n", TEXTURE_FILE);
-      exit(1);
-   }
-
-   /* mipmapping required for this extension */
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
-   glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &maxBias);
-   printf("LOD bias range: [%g, %g]\n", -maxBias, maxBias);
-   BiasMin = -100 * maxBias;
-   BiasMax =  100 * maxBias;
-
-   /* Since we have (about) 8 mipmap levels, no need to bias beyond
-    * the range [-1, +8].
-    */
-   if (BiasMin < -100)
-      BiasMin = -100;
-   if (BiasMax > 800)
-      BiasMax = 800;
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 350, 350 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   if (Anim)
-      glutIdleFunc(Idle);
-   Init();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/morph3d.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/morph3d.c
deleted file mode 100644
index 047d571c7..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/morph3d.c
+++ /dev/null
@@ -1,886 +0,0 @@
-
-/*-
- * morph3d.c - Shows 3D morphing objects
- *
- * Converted to GLUT by brianp on 1/1/98
- *
- * This program was inspired on a WindowsNT(R)'s screen saver. It was written 
- * from scratch and it was not based on any other source code. 
- * 
- * Porting it to xlock (the final objective of this code since the moment I
- * decided to create it) was possible by comparing the original Mesa's gear
- * demo with it's ported version, so thanks for Danny Sung for his indirect
- * help (look at gear.c in xlock source tree). NOTE: At the moment this code
- * was sent to Brian Paul for package inclusion, the XLock Version was not
- * available. In fact, I'll wait it to appear on the next Mesa release (If you
- * are reading this, it means THIS release) to send it for xlock package 
- * inclusion). It will probably there be a GLUT version too.
- *
- * Thanks goes also to Brian Paul for making it possible and inexpensive
- * to use OpenGL at home.
- *
- * Since I'm not a native english speaker, my apologies for any gramatical
- * mistake.
- *
- * My e-mail addresses are
- *
- * vianna@cat.cbpf.br 
- *         and
- * marcelo@venus.rdc.puc-rio.br
- *
- * Marcelo F. Vianna (Feb-13-1997)
- */
-
-/*
-This document is VERY incomplete, but tries to describe the mathematics used
-in the program. At this moment it just describes how the polyhedra are 
-generated. On futhurer versions, this document will be probabbly improved.
-
-Since I'm not a native english speaker, my apologies for any gramatical
-mistake.
-
-Marcelo Fernandes Vianna 
-- Undergraduate in Computer Engeneering at Catholic Pontifical University
-- of Rio de Janeiro (PUC-Rio) Brasil.
-- e-mail: vianna@cat.cbpf.br or marcelo@venus.rdc.puc-rio.br
-- Feb-13-1997
-
-POLYHEDRA GENERATION
-
-For the purpose of this program it's not sufficient to know the polyhedra
-vertexes coordinates. Since the morphing algorithm applies a nonlinear 
-transformation over the surfaces (faces) of the polyhedron, each face has
-to be divided into smaller ones. The morphing algorithm needs to transform 
-each vertex of these smaller faces individually. It's a very time consoming
-task.
-
-In order to reduce calculation overload, and since all the macro faces of
-the polyhedron are transformed by the same way, the generation is made by 
-creating only one face of the polyhedron, morphing it and then rotating it
-around the polyhedron center. 
-
-What we need to know is the face radius of the polyhedron (the radius of 
-the inscribed sphere) and the angle between the center of two adjacent 
-faces using the center of the sphere as the angle's vertex.
-
-The face radius of the regular polyhedra are known values which I decided
-to not waste my time calculating. Following is a table of face radius for
-the regular polyhedra with edge length = 1:
-
-    TETRAHEDRON  : 1/(2*sqrt(2))/sqrt(3)
-    CUBE	 : 1/2
-    OCTAHEDRON   : 1/sqrt(6)
-    DODECAHEDRON : T^2 * sqrt((T+2)/5) / 2     -> where T=(sqrt(5)+1)/2
-    ICOSAHEDRON  : (3*sqrt(3)+sqrt(15))/12
-
-I've not found any reference about the mentioned angles, so I needed to
-calculate them, not a trivial task until I figured out how :)
-Curiously these angles are the same for the tetrahedron and octahedron.
-A way to obtain this value is inscribing the tetrahedron inside the cube
-by matching their vertexes. So you'll notice that the remaining unmatched
-vertexes are in the same straight line starting in the cube/tetrahedron
-center and crossing the center of each tetrahedron's face. At this point
-it's easy to obtain the bigger angle of the isosceles triangle formed by
-the center of the cube and two opposite vertexes on the same cube face.
-The edges of this triangle have the following lenghts: sqrt(2) for the base
-and sqrt(3)/2 for the other two other edges. So the angle we want is:
-     +-----------------------------------------------------------+
-     | 2*ARCSIN(sqrt(2)/sqrt(3)) = 109.47122063449069174 degrees |
-     +-----------------------------------------------------------+
-For the cube this angle is obvious, but just for formality it can be
-easily obtained because we also know it's isosceles edge lenghts:
-sqrt(2)/2 for the base and 1/2 for the other two edges. So the angle we 
-want is:
-     +-----------------------------------------------------------+
-     | 2*ARCSIN((sqrt(2)/2)/1)   = 90.000000000000000000 degrees |
-     +-----------------------------------------------------------+
-For the octahedron we use the same idea used for the tetrahedron, but now
-we inscribe the cube inside the octahedron so that all cubes's vertexes
-matches excatly the center of each octahedron's face. It's now clear that
-this angle is the same of the thetrahedron one:
-     +-----------------------------------------------------------+
-     | 2*ARCSIN(sqrt(2)/sqrt(3)) = 109.47122063449069174 degrees |
-     +-----------------------------------------------------------+
-For the dodecahedron it's a little bit harder because it's only relationship
-with the cube is useless to us. So we need to solve the problem by another
-way. The concept of Face radius also exists on 2D polygons with the name
-Edge radius:
-  Edge Radius For Pentagon (ERp)
-  ERp = (1/2)/TAN(36 degrees) * VRp = 0.6881909602355867905
-  (VRp is the pentagon's vertex radio).
-  Face Radius For Dodecahedron
-  FRd = T^2 * sqrt((T+2)/5) / 2 = 1.1135163644116068404
-Why we need ERp? Well, ERp and FRd segments forms a 90 degrees angle, 
-completing this triangle, the lesser angle is a half of the angle we are 
-looking for, so this angle is:
-     +-----------------------------------------------------------+
-     | 2*ARCTAN(ERp/FRd)	 = 63.434948822922009981 degrees |
-     +-----------------------------------------------------------+
-For the icosahedron we can use the same method used for dodecahedron (well
-the method used for dodecahedron may be used for all regular polyhedra)
-  Edge Radius For Triangle (this one is well known: 1/3 of the triangle height)
-  ERt = sin(60)/3 = sqrt(3)/6 = 0.2886751345948128655
-  Face Radius For Icosahedron
-  FRi= (3*sqrt(3)+sqrt(15))/12 = 0.7557613140761707538
-So the angle is:
-     +-----------------------------------------------------------+
-     | 2*ARCTAN(ERt/FRi)	 = 41.810314895778596167 degrees |
-     +-----------------------------------------------------------+
-
-*/
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#ifndef _WIN32
-#include <unistd.h>
-#endif
-#include <GL/glut.h>
-#include <math.h>
-#include <string.h>
-
-#define Scale                      0.3
-
-#define VectMul(X1,Y1,Z1,X2,Y2,Z2) (Y1)*(Z2)-(Z1)*(Y2),(Z1)*(X2)-(X1)*(Z2),(X1)*(Y2)-(Y1)*(X2)
-#define sqr(A)                     ((A)*(A))
-
-/* Increasing this values produces better image quality, the price is speed. */
-/* Very low values produces erroneous/incorrect plotting */
-#define tetradivisions             23
-#define cubedivisions              20
-#define octadivisions              21
-#define dodecadivisions            10
-#define icodivisions               15
-
-#define tetraangle                 109.47122063449069174
-#define cubeangle                  90.000000000000000000
-#define octaangle                  109.47122063449069174
-#define dodecaangle                63.434948822922009981
-#define icoangle                   41.810314895778596167
-
-#ifndef Pi
-#define Pi                         3.1415926535897932385
-#endif
-#define SQRT2                      1.4142135623730951455
-#define SQRT3                      1.7320508075688771932
-#define SQRT5                      2.2360679774997898051
-#define SQRT6                      2.4494897427831778813
-#define SQRT15                     3.8729833462074170214
-#define cossec36_2                 0.8506508083520399322
-#define cos72                      0.3090169943749474241
-#define sin72                      0.9510565162951535721
-#define cos36                      0.8090169943749474241
-#define sin36                      0.5877852522924731292
-
-/*************************************************************************/
-
-static int       mono=0;
-static int       smooth=1;
-static GLint     WindH, WindW;
-static GLfloat   step=0;
-static GLfloat   seno;
-static int       object;
-static int       edgedivisions;
-static void      (*draw_object)( void );
-static float     Magnitude;
-static float     *MaterialColor[20];
-
-static float front_shininess[] =   {60.0};
-static float front_specular[]  =   { 0.7, 0.7, 0.7, 1.0 };
-static float ambient[]         =   { 0.0, 0.0, 0.0, 1.0 };
-static float diffuse[]         =   { 1.0, 1.0, 1.0, 1.0 };
-static float position0[]       =   { 1.0, 1.0, 1.0, 0.0 };
-static float position1[]       =   {-1.0,-1.0, 1.0, 0.0 };
-static float lmodel_ambient[]  =   { 0.5, 0.5, 0.5, 1.0 };
-static float lmodel_twoside[]  =   {GL_TRUE};
-
-static float MaterialRed[]     =   { 0.7, 0.0, 0.0, 1.0 };
-static float MaterialGreen[]   =   { 0.1, 0.5, 0.2, 1.0 };
-static float MaterialBlue[]    =   { 0.0, 0.0, 0.7, 1.0 };
-static float MaterialCyan[]    =   { 0.2, 0.5, 0.7, 1.0 };
-static float MaterialYellow[]  =   { 0.7, 0.7, 0.0, 1.0 };
-static float MaterialMagenta[] =   { 0.6, 0.2, 0.5, 1.0 };
-static float MaterialWhite[]   =   { 0.7, 0.7, 0.7, 1.0 };
-static float MaterialGray[]    =   { 0.2, 0.2, 0.2, 1.0 };
-
-#define TRIANGLE(Edge, Amp, Divisions, Z)                                                                        \
-{                                                                                                                \
-  GLfloat   Xf,Yf,Xa,Yb,Xf2,Yf2;                                                                                 \
-  GLfloat   Factor,Factor1,Factor2;                                                                              \
-  GLfloat   VertX,VertY,VertZ,NeiAX,NeiAY,NeiAZ,NeiBX,NeiBY,NeiBZ;                                               \
-  GLfloat   Ax,Ay,Bx;                                                                                            \
-  int       Ri,Ti;                                                                                               \
-  GLfloat   Vr=(Edge)*SQRT3/3;                                                                                   \
-  GLfloat   AmpVr2=(Amp)/sqr(Vr);                                                                                \
-  GLfloat   Zf=(Edge)*(Z);                                                                                       \
-                                                                                                                 \
-  Ax=(Edge)*(+0.5/(Divisions)), Ay=(Edge)*(-SQRT3/(2*Divisions));                                                \
-  Bx=(Edge)*(-0.5/(Divisions));                                                                                  \
-                                                                                                                 \
-  for (Ri=1; Ri<=(Divisions); Ri++) {                                                                            \
-    glBegin(GL_TRIANGLE_STRIP);                                                                                  \
-    for (Ti=0; Ti<Ri; Ti++) {                                                                                    \
-      Xf=(float)(Ri-Ti)*Ax + (float)Ti*Bx;                                                                       \
-      Yf=Vr+(float)(Ri-Ti)*Ay + (float)Ti*Ay;                                                                    \
-      Xa=Xf+0.001; Yb=Yf+0.001;                                                                                  \
-      Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2);                                                           \
-      Factor1=1-((sqr(Xa)+Yf2)*AmpVr2);                                                                          \
-      Factor2=1-((Xf2+sqr(Yb))*AmpVr2);                                                                          \
-      VertX=Factor*Xf;        VertY=Factor*Yf;        VertZ=Factor*Zf;                                           \
-      NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ;                                    \
-      NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ;                                    \
-      glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ));                                             \
-      glVertex3f(VertX, VertY, VertZ);                                                                           \
-                                                                                                                 \
-      Xf=(float)(Ri-Ti-1)*Ax + (float)Ti*Bx;                                                                     \
-      Yf=Vr+(float)(Ri-Ti-1)*Ay + (float)Ti*Ay;                                                                  \
-      Xa=Xf+0.001; Yb=Yf+0.001;                                                                                  \
-      Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2);                                                           \
-      Factor1=1-((sqr(Xa)+Yf2)*AmpVr2);                                                                          \
-      Factor2=1-((Xf2+sqr(Yb))*AmpVr2);                                                                          \
-      VertX=Factor*Xf;        VertY=Factor*Yf;        VertZ=Factor*Zf;                                           \
-      NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ;                                    \
-      NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ;                                    \
-      glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ));                                             \
-      glVertex3f(VertX, VertY, VertZ);                                                                           \
-                                                                                                                 \
-    }                                                                                                            \
-    Xf=(float)Ri*Bx;                                                                                             \
-    Yf=Vr+(float)Ri*Ay;                                                                                          \
-    Xa=Xf+0.001; Yb=Yf+0.001;                                                                                    \
-    Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2);                                                             \
-    Factor1=1-((sqr(Xa)+Yf2)*AmpVr2);                                                                            \
-    Factor2=1-((Xf2+sqr(Yb))*AmpVr2);                                                                            \
-    VertX=Factor*Xf;        VertY=Factor*Yf;        VertZ=Factor*Zf;                                             \
-    NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ;                                      \
-    NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ;                                      \
-    glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ));                                               \
-    glVertex3f(VertX, VertY, VertZ);                                                                             \
-    glEnd();                                                                                                     \
-  }                                                                                                              \
-}
-
-#define SQUARE(Edge, Amp, Divisions, Z)                                                                          \
-{                                                                                                                \
-  int       Xi,Yi;                                                                                               \
-  GLfloat   Xf,Yf,Y,Xf2,Yf2,Y2,Xa,Yb;                                                                            \
-  GLfloat   Factor,Factor1,Factor2;                                                                              \
-  GLfloat   VertX,VertY,VertZ,NeiAX,NeiAY,NeiAZ,NeiBX,NeiBY,NeiBZ;                                               \
-  GLfloat   Zf=(Edge)*(Z);                                                                                       \
-  GLfloat   AmpVr2=(Amp)/sqr((Edge)*SQRT2/2);                                                                    \
-                                                                                                                 \
-  for (Yi=0; Yi<(Divisions); Yi++) {                                                                             \
-    Yf=-((Edge)/2.0) + ((float)Yi)/(Divisions)*(Edge);                                                           \
-    Yf2=sqr(Yf);                                                                                                 \
-    Y=Yf+1.0/(Divisions)*(Edge);                                                                                 \
-    Y2=sqr(Y);                                                                                                   \
-    glBegin(GL_QUAD_STRIP);                                                                                      \
-    for (Xi=0; Xi<=(Divisions); Xi++) {                                                                          \
-      Xf=-((Edge)/2.0) + ((float)Xi)/(Divisions)*(Edge);                                                         \
-      Xf2=sqr(Xf);                                                                                               \
-                                                                                                                 \
-      Xa=Xf+0.001; Yb=Y+0.001;                                                                                   \
-      Factor=1-((Xf2+Y2)*AmpVr2);                                                                                \
-      Factor1=1-((sqr(Xa)+Y2)*AmpVr2);                                                                           \
-      Factor2=1-((Xf2+sqr(Yb))*AmpVr2);                                                                          \
-      VertX=Factor*Xf;        VertY=Factor*Y;         VertZ=Factor*Zf;                                           \
-      NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Y-VertY;  NeiAZ=Factor1*Zf-VertZ;                                    \
-      NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ;                                    \
-      glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ));                                             \
-      glVertex3f(VertX, VertY, VertZ);                                                                           \
-                                                                                                                 \
-      Xa=Xf+0.001; Yb=Yf+0.001;                                                                                  \
-      Factor=1-((Xf2+Yf2)*AmpVr2);                                                                               \
-      Factor1=1-((sqr(Xa)+Yf2)*AmpVr2);                                                                          \
-      Factor2=1-((Xf2+sqr(Yb))*AmpVr2);                                                                          \
-      VertX=Factor*Xf;        VertY=Factor*Yf;        VertZ=Factor*Zf;                                           \
-      NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ;                                    \
-      NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ;                                    \
-      glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ));                                             \
-      glVertex3f(VertX, VertY, VertZ);                                                                           \
-    }                                                                                                            \
-    glEnd();                                                                                                     \
-  }                                                                                                              \
-}
-
-#define PENTAGON(Edge, Amp, Divisions, Z)                                                                        \
-{                                                                                                                \
-  int       Ri,Ti,Fi;                                                                                            \
-  GLfloat   Xf,Yf,Xa,Yb,Xf2,Yf2;                                                                                 \
-  GLfloat   x[6],y[6];                                                                                           \
-  GLfloat   Factor,Factor1,Factor2;                                                                              \
-  GLfloat   VertX,VertY,VertZ,NeiAX,NeiAY,NeiAZ,NeiBX,NeiBY,NeiBZ;                                               \
-  GLfloat   Zf=(Edge)*(Z);                                                                                       \
-  GLfloat   AmpVr2=(Amp)/sqr((Edge)*cossec36_2);                                                                 \
-                                                                                                                 \
-  for(Fi=0;Fi<6;Fi++) {                                                                                          \
-    x[Fi]=-cos( Fi*2*Pi/5 + Pi/10 )/(Divisions)*cossec36_2*(Edge);                                                \
-    y[Fi]=sin( Fi*2*Pi/5 + Pi/10 )/(Divisions)*cossec36_2*(Edge);                                                \
-  }                                                                                                              \
-                                                                                                                 \
-  for (Ri=1; Ri<=(Divisions); Ri++) {                                                                            \
-    for (Fi=0; Fi<5; Fi++) {                                                                                     \
-      glBegin(GL_TRIANGLE_STRIP);                                                                                \
-      for (Ti=0; Ti<Ri; Ti++) {                                                                                  \
-        Xf=(float)(Ri-Ti)*x[Fi] + (float)Ti*x[Fi+1];                                                             \
-        Yf=(float)(Ri-Ti)*y[Fi] + (float)Ti*y[Fi+1];                                                             \
-        Xa=Xf+0.001; Yb=Yf+0.001;                                                                                \
-	Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2);                                                         \
-	Factor1=1-((sqr(Xa)+Yf2)*AmpVr2);                                                                        \
-	Factor2=1-((Xf2+sqr(Yb))*AmpVr2);                                                                        \
-        VertX=Factor*Xf;        VertY=Factor*Yf;        VertZ=Factor*Zf;                                         \
-        NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ;                                  \
-        NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ;                                  \
-        glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ));                                           \
-	glVertex3f(VertX, VertY, VertZ);                                                                         \
-                                                                                                                 \
-        Xf=(float)(Ri-Ti-1)*x[Fi] + (float)Ti*x[Fi+1];                                                           \
-        Yf=(float)(Ri-Ti-1)*y[Fi] + (float)Ti*y[Fi+1];                                                           \
-        Xa=Xf+0.001; Yb=Yf+0.001;                                                                                \
-	Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2);                                                         \
-	Factor1=1-((sqr(Xa)+Yf2)*AmpVr2);                                                                        \
-	Factor2=1-((Xf2+sqr(Yb))*AmpVr2);                                                                        \
-        VertX=Factor*Xf;        VertY=Factor*Yf;        VertZ=Factor*Zf;                                         \
-        NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ;                                  \
-        NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ;                                  \
-        glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ));                                           \
-	glVertex3f(VertX, VertY, VertZ);                                                                         \
-                                                                                                                 \
-      }                                                                                                          \
-      Xf=(float)Ri*x[Fi+1];                                                                                      \
-      Yf=(float)Ri*y[Fi+1];                                                                                      \
-      Xa=Xf+0.001; Yb=Yf+0.001;                                                                                  \
-      Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2);                                                           \
-      Factor1=1-((sqr(Xa)+Yf2)*AmpVr2);                                                                          \
-      Factor2=1-((Xf2+sqr(Yb))*AmpVr2);                                                                          \
-      VertX=Factor*Xf;        VertY=Factor*Yf;        VertZ=Factor*Zf;                                           \
-      NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ;                                    \
-      NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ;                                    \
-      glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ));                                             \
-      glVertex3f(VertX, VertY, VertZ);                                                                           \
-      glEnd();                                                                                                   \
-    }                                                                                                            \
-  }                                                                                                              \
-}
-
-static void draw_tetra( void )
-{
-  GLuint list;
-
-  list = glGenLists( 1 );
-  glNewList( list, GL_COMPILE );
-  TRIANGLE(2,seno,edgedivisions,0.5/SQRT6);
-  glEndList();
-
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[0]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-tetraangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[1]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+tetraangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[2]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+tetraangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[3]);
-  glCallList(list);
-
-  glDeleteLists(list,1);
-}
-
-static void draw_cube( void )
-{
-  GLuint list;
-
-  list = glGenLists( 1 );
-  glNewList( list, GL_COMPILE );
-  SQUARE(2, seno, edgedivisions, 0.5)
-  glEndList();
-
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[0]);
-  glCallList(list);
-  glRotatef(cubeangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[1]);
-  glCallList(list);
-  glRotatef(cubeangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[2]);
-  glCallList(list);
-  glRotatef(cubeangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[3]);
-  glCallList(list);
-  glRotatef(cubeangle,0,1,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[4]);
-  glCallList(list);
-  glRotatef(2*cubeangle,0,1,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[5]);
-  glCallList(list);
-
-  glDeleteLists(list,1);
-}
-
-static void draw_octa( void )
-{
-  GLuint list;
-
-  list = glGenLists( 1 );
-  glNewList( list, GL_COMPILE );
-  TRIANGLE(2,seno,edgedivisions,1/SQRT6);
-  glEndList();
-
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[0]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-180+octaangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[1]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-octaangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[2]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-octaangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[3]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[4]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-180+octaangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[5]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-octaangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[6]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-octaangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[7]);
-  glCallList(list);
-
-  glDeleteLists(list,1);
-}
-
-static void draw_dodeca( void )
-{
-  GLuint list;
-
-#define TAU ((SQRT5+1)/2)
-
-  list = glGenLists( 1 );
-  glNewList( list, GL_COMPILE );
-  PENTAGON(1,seno,edgedivisions,sqr(TAU) * sqrt((TAU+2)/5) / 2);
-  glEndList();
-
-  glPushMatrix();
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[0]);
-  glCallList(list);
-  glRotatef(180,0,0,1);
-  glPushMatrix();
-  glRotatef(-dodecaangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[1]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(-dodecaangle,cos72,sin72,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[2]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(-dodecaangle,cos72,-sin72,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[3]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(dodecaangle,cos36,-sin36,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[4]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(dodecaangle,cos36,sin36,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[5]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[6]);
-  glCallList(list);
-  glRotatef(180,0,0,1);
-  glPushMatrix();
-  glRotatef(-dodecaangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[7]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(-dodecaangle,cos72,sin72,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[8]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(-dodecaangle,cos72,-sin72,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[9]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(dodecaangle,cos36,-sin36,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[10]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(dodecaangle,cos36,sin36,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[11]);
-  glCallList(list);
-
-  glDeleteLists(list,1);
-}
-
-static void draw_ico( void )
-{
-  GLuint list;
-
-  list = glGenLists( 1 );
-  glNewList( list, GL_COMPILE );
-  TRIANGLE(1.5,seno,edgedivisions,(3*SQRT3+SQRT15)/12);
-  glEndList();
-
-  glPushMatrix();
-
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[0]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-icoangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[1]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[2]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[3]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[4]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[5]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-icoangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[6]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[7]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[8]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-icoangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[9]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[10]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-icoangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[11]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[12]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[13]);
-  glCallList(list);
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[14]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[15]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-icoangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[16]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[17]);
-  glCallList(list);
-  glPushMatrix();
-  glRotatef(180,0,1,0);
-  glRotatef(-180+icoangle,0.5,-SQRT3/2,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[18]);
-  glCallList(list);
-  glPopMatrix();
-  glRotatef(180,0,0,1);
-  glRotatef(-icoangle,1,0,0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialColor[19]);
-  glCallList(list);
-
-  glDeleteLists(list,1);
-}
-
-static void draw ( void ) {
-  static double t0 = -1.;
-  double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-  if (t0 < 0.0)
-     t0 = t;
-  dt = t - t0;
-  t0 = t;
-
-  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-  glPushMatrix();
-
-    glTranslatef( 0.0, 0.0, -10.0 );
-    glScalef( Scale*WindH/WindW, Scale, Scale );
-    glTranslatef(2.5*WindW/WindH*sin(step*1.11),2.5*cos(step*1.25*1.11),0);
-    glRotatef(step*100,1,0,0);
-    glRotatef(step*95,0,1,0);
-    glRotatef(step*90,0,0,1);
-
-  seno=(sin(step)+1.0/3.0)*(4.0/5.0)*Magnitude;
-
-  draw_object();
-
-  glPopMatrix();
-
-  glFlush();
-
-  glutSwapBuffers();
-
-  step += dt;
-}
-
-static void idle_( void )
-{
-   glutPostRedisplay();
-}
-
-static void reshape( int width, int height )
-{
-  glViewport(0, 0, WindW=(GLint)width, WindH=(GLint)height);
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 15.0 );
-  glMatrixMode(GL_MODELVIEW);
-}
-
-static void pinit(void);
-
-static void key( unsigned char k, int x, int y )
-{
-  (void) x;
-  (void) y;
-  switch (k) {
-    case '1': object=1; break;
-    case '2': object=2; break;
-    case '3': object=3; break;
-    case '4': object=4; break;
-    case '5': object=5; break;
-    case ' ': mono^=1; break;
-    case 13: smooth^=1; break;
-    case 27:
-       exit(0);
-  }
-  pinit();
-}
-
-static void pinit(void)
-{
-  switch(object) {
-    case 1:
-      draw_object=draw_tetra;
-      MaterialColor[0]=MaterialRed;
-      MaterialColor[1]=MaterialGreen;
-      MaterialColor[2]=MaterialBlue;
-      MaterialColor[3]=MaterialWhite;
-      edgedivisions=tetradivisions;
-      Magnitude=2.5;
-      break;
-    case 2:
-      draw_object=draw_cube;
-      MaterialColor[0]=MaterialRed;
-      MaterialColor[1]=MaterialGreen;
-      MaterialColor[2]=MaterialCyan;
-      MaterialColor[3]=MaterialMagenta;
-      MaterialColor[4]=MaterialYellow;
-      MaterialColor[5]=MaterialBlue;
-      edgedivisions=cubedivisions;
-      Magnitude=2.0;
-      break;
-    case 3:
-      draw_object=draw_octa;
-      MaterialColor[0]=MaterialRed;
-      MaterialColor[1]=MaterialGreen;
-      MaterialColor[2]=MaterialBlue;
-      MaterialColor[3]=MaterialWhite;
-      MaterialColor[4]=MaterialCyan;
-      MaterialColor[5]=MaterialMagenta;
-      MaterialColor[6]=MaterialGray;
-      MaterialColor[7]=MaterialYellow;
-      edgedivisions=octadivisions;
-      Magnitude=2.5;
-      break;
-    case 4:
-      draw_object=draw_dodeca;
-      MaterialColor[ 0]=MaterialRed;
-      MaterialColor[ 1]=MaterialGreen;
-      MaterialColor[ 2]=MaterialCyan;
-      MaterialColor[ 3]=MaterialBlue;
-      MaterialColor[ 4]=MaterialMagenta;
-      MaterialColor[ 5]=MaterialYellow;
-      MaterialColor[ 6]=MaterialGreen;
-      MaterialColor[ 7]=MaterialCyan;
-      MaterialColor[ 8]=MaterialRed;
-      MaterialColor[ 9]=MaterialMagenta;
-      MaterialColor[10]=MaterialBlue;
-      MaterialColor[11]=MaterialYellow;
-      edgedivisions=dodecadivisions;
-      Magnitude=2.0;
-      break;
-    case 5:
-      draw_object=draw_ico;
-      MaterialColor[ 0]=MaterialRed;
-      MaterialColor[ 1]=MaterialGreen;
-      MaterialColor[ 2]=MaterialBlue;
-      MaterialColor[ 3]=MaterialCyan;
-      MaterialColor[ 4]=MaterialYellow;
-      MaterialColor[ 5]=MaterialMagenta;
-      MaterialColor[ 6]=MaterialRed;
-      MaterialColor[ 7]=MaterialGreen;
-      MaterialColor[ 8]=MaterialBlue;
-      MaterialColor[ 9]=MaterialWhite;
-      MaterialColor[10]=MaterialCyan;
-      MaterialColor[11]=MaterialYellow;
-      MaterialColor[12]=MaterialMagenta;
-      MaterialColor[13]=MaterialRed;
-      MaterialColor[14]=MaterialGreen;
-      MaterialColor[15]=MaterialBlue;
-      MaterialColor[16]=MaterialCyan;
-      MaterialColor[17]=MaterialYellow;
-      MaterialColor[18]=MaterialMagenta;
-      MaterialColor[19]=MaterialGray;
-      edgedivisions=icodivisions;
-      Magnitude=2.5;
-      break;
-  }
-  if (mono) {
-    int loop;
-    for (loop=0; loop<20; loop++) MaterialColor[loop]=MaterialGray;
-  }
-  if (smooth) {
-    glShadeModel( GL_SMOOTH );
-  } else {
-    glShadeModel( GL_FLAT );
-  }
-
-}
-
-static void INIT(void)
-{
-  printf("Morph 3D - Shows morphing platonic polyhedra\n");
-  printf("Author: Marcelo Fernandes Vianna (vianna@cat.cbpf.br)\n\n");
-  printf("  [1]    - Tetrahedron\n");
-  printf("  [2]    - Hexahedron (Cube)\n");
-  printf("  [3]    - Octahedron\n");
-  printf("  [4]    - Dodecahedron\n");
-  printf("  [5]    - Icosahedron\n");
-  printf("[SPACE]  - Toggle colored faces\n");
-  printf("[RETURN] - Toggle smooth/flat shading\n");
-  printf(" [ESC]   - Quit\n");
-
-  object=1;
-
-  glutInitWindowPosition(0,0);
-  glutInitWindowSize(640,480);
-
-  glutInitDisplayMode( GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGB );
-
-  if (glutCreateWindow("Morph 3D - Shows morphing platonic polyhedra") <= 0) {
-     exit(0);
-  }
-
-  glClearDepth(1.0);
-  glClearColor( 0.0, 0.0, 0.0, 1.0 );
-  glColor3f( 1.0, 1.0, 1.0 );
-
-  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-  glFlush();
-  glutSwapBuffers();
-
-  glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
-  glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
-  glLightfv(GL_LIGHT0, GL_POSITION, position0);
-  glLightfv(GL_LIGHT1, GL_AMBIENT, ambient);
-  glLightfv(GL_LIGHT1, GL_DIFFUSE, diffuse);
-  glLightfv(GL_LIGHT1, GL_POSITION, position1);
-  glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
-  glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
-  glEnable(GL_LIGHTING);
-  glEnable(GL_LIGHT0);
-  glEnable(GL_LIGHT1);
-  glEnable(GL_DEPTH_TEST);
-  glEnable(GL_NORMALIZE);
-
-  glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, front_shininess);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, front_specular);
-
-  glHint(GL_FOG_HINT, GL_FASTEST);
-  glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
-  glHint(GL_POLYGON_SMOOTH_HINT, GL_FASTEST);
-
-  pinit();
-
-  glutReshapeFunc( reshape );
-  glutKeyboardFunc( key );
-  glutIdleFunc( idle_ );
-  glutDisplayFunc( draw );
-  glutMainLoop();
-  
-}
-
-int main(int argc, char **argv)
-{
-  INIT();
-  return(0);
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/multiarb.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/multiarb.c
deleted file mode 100644
index d963985c6..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/multiarb.c
+++ /dev/null
@@ -1,345 +0,0 @@
-
-/*
- * GL_ARB_multitexture demo
- *
- * Command line options:
- *    -info      print GL implementation information
- *
- *
- * Brian Paul  November 1998  This program is in the public domain.
- * Modified on 12 Feb 2002 for > 2 texture units.
- */
-
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <GL/glut.h>
-
-#include "readtex.h"
-
-#define TEXTURE_1_FILE "../images/girl.rgb"
-#define TEXTURE_2_FILE "../images/reflect.rgb"
-
-#define TEX0 1
-#define TEX7 8
-#define ANIMATE 10
-#define QUIT 100
-
-static GLboolean Animate = GL_TRUE;
-static GLint NumUnits = 1;
-static GLboolean TexEnabled[8];
-
-static GLfloat Drift = 0.0;
-static GLfloat drift_increment = 0.005;
-static GLfloat Xrot = 20.0, Yrot = 30.0, Zrot = 0.0;
-
-
-static void Idle( void )
-{
-   if (Animate) {
-      GLint i;
-
-      Drift += drift_increment;
-      if (Drift >= 1.0)
-         Drift = 0.0;
-
-      for (i = 0; i < NumUnits; i++) {
-         glActiveTextureARB(GL_TEXTURE0_ARB + i);
-         glMatrixMode(GL_TEXTURE);
-         glLoadIdentity();
-         if (i == 0) {
-            glTranslatef(Drift, 0.0, 0.0);
-            glScalef(2, 2, 1);
-         }
-         else if (i == 1) {
-            glTranslatef(0.0, Drift, 0.0);
-         }
-         else {
-            glTranslatef(0.5, 0.5, 0.0);
-            glRotatef(180.0 * Drift, 0, 0, 1);
-            glScalef(1.0/i, 1.0/i, 1.0/i);
-            glTranslatef(-0.5, -0.5, 0.0);
-         }
-      }
-      glMatrixMode(GL_MODELVIEW);
-
-      glutPostRedisplay();
-   }
-}
-
-
-static void DrawObject(void)
-{
-   GLint i;
-   GLint j;
-   static const GLfloat   tex_coords[] = {  0.0,  0.0,  1.0,  1.0,  0.0 };
-   static const GLfloat   vtx_coords[] = { -1.0, -1.0,  1.0,  1.0, -1.0 };
-
-   if (!TexEnabled[0] && !TexEnabled[1])
-      glColor3f(0.1, 0.1, 0.1);  /* add onto this */
-   else
-      glColor3f(1, 1, 1);  /* modulate this */
-
-   glBegin(GL_QUADS);
-
-   /* Toggle between the vector and scalar entry points.  This is done purely
-    * to hit multiple paths in the driver.
-    */
-   if ( Drift > 0.49 ) {
-      for (j = 0; j < 4; j++ ) {
-	 for (i = 0; i < NumUnits; i++)
-	    glMultiTexCoord2fARB(GL_TEXTURE0_ARB + i, 
-				 tex_coords[j], tex_coords[j+1]);
-	 glVertex2f( vtx_coords[j], vtx_coords[j+1] );
-      }
-   }
-   else {
-      for (j = 0; j < 4; j++ ) {
-	 for (i = 0; i < NumUnits; i++)
-	    glMultiTexCoord2fvARB(GL_TEXTURE0_ARB + i, & tex_coords[j]);
-	 glVertex2fv( & vtx_coords[j] );
-      }
-   }
-
-   glEnd();
-}
-
-
-
-static void Display( void )
-{
-   static GLint T0 = 0;
-   static GLint Frames = 0;
-   GLint t;
-
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   glPushMatrix();
-      glRotatef(Xrot, 1.0, 0.0, 0.0);
-      glRotatef(Yrot, 0.0, 1.0, 0.0);
-      glRotatef(Zrot, 0.0, 0.0, 1.0);
-      glScalef(5.0, 5.0, 5.0);
-      DrawObject();
-   glPopMatrix();
-
-   glutSwapBuffers();
-
-   Frames++;
-
-   t = glutGet(GLUT_ELAPSED_TIME);
-   if (t - T0 >= 250) {
-      GLfloat seconds = (t - T0) / 1000.0;
-      drift_increment = 2.2 * seconds / Frames;
-      T0 = t;
-      Frames = 0;
-   }
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 10.0, 100.0 );
-   /*glOrtho( -6.0, 6.0, -6.0, 6.0, 10.0, 100.0 );*/
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -70.0 );
-}
-
-
-static void ModeMenu(int entry)
-{
-   if (entry >= TEX0 && entry <= TEX7) {
-      /* toggle */
-      GLint i = entry - TEX0;
-      TexEnabled[i] = !TexEnabled[i];
-      glActiveTextureARB(GL_TEXTURE0_ARB + i);
-      if (TexEnabled[i])
-         glEnable(GL_TEXTURE_2D);
-      else
-         glDisable(GL_TEXTURE_2D);
-      printf("Enabled: ");
-      for (i = 0; i < NumUnits; i++)
-         printf("%d ", (int) TexEnabled[i]);
-      printf("\n");
-   }
-   else if (entry==ANIMATE) {
-      Animate = !Animate;
-   }
-   else if (entry==QUIT) {
-      exit(0);
-   }
-
-   glutPostRedisplay();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   float step = 3.0;
-   (void) x;
-   (void) y;
-
-   switch (key) {
-      case GLUT_KEY_UP:
-         Xrot += step;
-         break;
-      case GLUT_KEY_DOWN:
-         Xrot -= step;
-         break;
-      case GLUT_KEY_LEFT:
-         Yrot += step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Yrot -= step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( int argc, char *argv[] )
-{
-   GLuint texObj[8];
-   GLint size, i;
-
-   const char *exten = (const char *) glGetString(GL_EXTENSIONS);
-   if (!strstr(exten, "GL_ARB_multitexture")) {
-      printf("Sorry, GL_ARB_multitexture not supported by this renderer.\n");
-      exit(1);
-   }
-
-   glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &NumUnits);
-   printf("%d texture units supported\n", NumUnits);
-   if (NumUnits > 8)
-      NumUnits = 8;
-
-   glGetIntegerv(GL_MAX_TEXTURE_SIZE, &size);
-   printf("%d x %d max texture size\n", size, size);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-   for (i = 0; i < NumUnits; i++) {
-      if (i < 2)
-         TexEnabled[i] = GL_TRUE;
-      else
-         TexEnabled[i] = GL_FALSE;
-   }
-
-   /* allocate two texture objects */
-   glGenTextures(NumUnits, texObj);
-
-   /* setup the texture objects */
-   for (i = 0; i < NumUnits; i++) {
-
-      glActiveTextureARB(GL_TEXTURE0_ARB + i);
-      glBindTexture(GL_TEXTURE_2D, texObj[i]);
-
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
-      if (i == 0) {
-         if (!LoadRGBMipmaps(TEXTURE_1_FILE, GL_RGB)) {
-            printf("Error: couldn't load texture image\n");
-            exit(1);
-         }
-      }
-      else if (i == 1) {
-         if (!LoadRGBMipmaps(TEXTURE_2_FILE, GL_RGB)) {
-            printf("Error: couldn't load texture image\n");
-            exit(1);
-         }
-      }
-      else {
-         /* checker */
-         GLubyte image[8][8][3];
-         GLint i, j;
-         for (i = 0; i < 8; i++) {
-            for (j = 0; j < 8; j++) {
-               if ((i + j) & 1) {
-                  image[i][j][0] = 50;
-                  image[i][j][1] = 50;
-                  image[i][j][2] = 50;
-               }
-               else {
-                  image[i][j][0] = 25;
-                  image[i][j][1] = 25;
-                  image[i][j][2] = 25;
-               }
-            }
-         }
-         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 8, 8, 0,
-                      GL_RGB, GL_UNSIGNED_BYTE, (GLvoid *) image);
-      }
-
-      /* Bind texObj[i] to ith texture unit */
-      if (i < 2)
-         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-      else
-         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD);
-
-      if (TexEnabled[i])
-         glEnable(GL_TEXTURE_2D);
-   }
-
-   glShadeModel(GL_FLAT);
-   glClearColor(0.3, 0.3, 0.4, 1.0);
-
-   if (argc > 1 && strcmp(argv[1], "-info")==0) {
-      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
-      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
-      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
-      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
-   }
-}
-
-
-int main( int argc, char *argv[] )
-{
-   GLint i;
-
-   glutInit( &argc, argv );
-   glutInitWindowSize( 300, 300 );
-   glutInitWindowPosition( 0, 0 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-   glutCreateWindow(argv[0] );
-
-   Init( argc, argv );
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   glutIdleFunc( Idle );
-
-   glutCreateMenu(ModeMenu);
-
-   for (i = 0; i < NumUnits; i++) {
-      char s[100];
-      sprintf(s, "Toggle Texture %d", i);
-      glutAddMenuEntry(s, TEX0 + i);
-   }
-   glutAddMenuEntry("Toggle Animation", ANIMATE);
-   glutAddMenuEntry("Quit", QUIT);
-   glutAttachMenu(GLUT_RIGHT_BUTTON);
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/occlude.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/occlude.c
deleted file mode 100644
index 8f7b90984..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/occlude.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * GL_HP_occlustion_test demo
- *
- * Brian Paul
- * 31 March 2000
- *
- * Copyright (C) 2000  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.
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <GL/glut.h>
-#include <GL/glext.h>
-
-
-static GLfloat Xpos = 0;
-static GLboolean Anim = GL_TRUE;
-
-
-static void
-PrintString(const char *s)
-{
-   while (*s) {
-      glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
-      s++;
-   }
-}
-
-
-
-static void Idle(void)
-{
-   static int lastTime = 0;
-   static int sign = +1;
-   int time = glutGet(GLUT_ELAPSED_TIME);
-   float step;
-
-   if (lastTime == 0)
-      lastTime = time;
-   else if (time - lastTime < 20)  /* 50Hz update */
-      return;
-
-   step = (time - lastTime) / 1000.0 * sign;
-   lastTime = time;
-
-   Xpos += step;
-
-   if (Xpos > 2.5) {
-      Xpos = 2.5;
-      sign = -1;
-   }
-   else if (Xpos < -2.5) {
-      Xpos = -2.5;
-      sign = +1;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Display( void )
-{
-   GLboolean result;
-
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -15.0 );
-
-   /* draw the occluding polygons */
-   glColor3f(0, 0.6, 0.8);
-   glBegin(GL_QUADS);
-   glVertex2f(-1.6, -1.5);
-   glVertex2f(-0.4, -1.5);
-   glVertex2f(-0.4,  1.5);
-   glVertex2f(-1.6,  1.5);
-
-   glVertex2f( 0.4, -1.5);
-   glVertex2f( 1.6, -1.5);
-   glVertex2f( 1.6,  1.5);
-   glVertex2f( 0.4,  1.5);
-   glEnd();
-
-   /* draw the test polygon with occlusion testing */
-   glPushMatrix();
-   glTranslatef(Xpos, 0, -0.5);
-   glScalef(0.3, 0.3, 1.0);
-   glRotatef(-90.0 * Xpos, 0, 0, 1);
-
-   glEnable(GL_OCCLUSION_TEST_HP);  /* NOTE: enabling the occlusion test */
-                                    /* doesn't clear the result flag! */
-   glColorMask(0, 0, 0, 0);
-   glDepthMask(GL_FALSE);
-   /* this call clear's the result flag.  Not really needed for this demo. */
-   glGetBooleanv(GL_OCCLUSION_TEST_RESULT_HP, &result);
-
-   glBegin(GL_POLYGON);
-   glVertex3f(-1, -1, 0);
-   glVertex3f( 1, -1, 0);
-   glVertex3f( 1,  1, 0);
-   glVertex3f(-1,  1, 0);
-   glEnd();
-
-   glGetBooleanv(GL_OCCLUSION_TEST_RESULT_HP, &result);
-   /* turn off occlusion testing */
-   glDisable(GL_OCCLUSION_TEST_HP);
-   glColorMask(1, 1, 1, 1);
-   glDepthMask(GL_TRUE);
-
-   /* draw the green rect, so we can see what's going on */
-   glColor3f(0.8, 0.5, 0);
-   glBegin(GL_POLYGON);
-   glVertex3f(-1, -1, 0);
-   glVertex3f( 1, -1, 0);
-   glVertex3f( 1,  1, 0);
-   glVertex3f(-1,  1, 0);
-   glEnd();
-
-   glPopMatrix();
-
-
-   /* Print result message */
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho( -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-
-   glColor3f(1, 1, 1);
-   glRasterPos3f(-0.25, -0.7, 0);
-
-   if (result)
-      PrintString("   Visible");
-   else
-      PrintString("Fully Occluded");
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 'a':
-         Anim = !Anim;
-         if (Anim)
-            glutIdleFunc( Idle );
-         else
-            glutIdleFunc( NULL );
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   const GLfloat step = 0.1;
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_LEFT:
-         Xpos -= step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Xpos += step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
-   const char *ext = (const char *) glGetString(GL_EXTENSIONS);
-   if (!strstr(ext, "GL_HP_occlusion_test")) {
-      printf("Sorry, this demo requires the GL_HP_occlusion_test extension\n");
-      exit(-1);
-   }
-
-   glEnable(GL_DEPTH_TEST);
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 400, 400 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutIdleFunc( Idle );
-   glutDisplayFunc( Display );
-   Init();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/paltex.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/paltex.c
deleted file mode 100644
index aa9c0da36..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/paltex.c
+++ /dev/null
@@ -1,270 +0,0 @@
-
-/*
- * Paletted texture demo.  Written by Brian Paul.
- * This program is in the public domain.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#ifdef _WIN32
-#include <windows.h>
-#endif
-#define GL_GLEXT_PROTOTYPES
-#include <GL/glut.h>
-
-
-static float Rot = 0.0;
-static GLboolean Anim = 1;
-
-
-static void Idle( void )
-{
-   float t = glutGet(GLUT_ELAPSED_TIME) * 0.001;  /* in seconds */
-   Rot = t * 360 / 4;  /* 1 rotation per 4 seconds */
-   glutPostRedisplay();
-}
-
-
-static void Display( void )
-{
-   /* draw background gradient */
-   glDisable(GL_TEXTURE_2D);
-   glBegin(GL_POLYGON);
-   glColor3f(1.0, 0.0, 0.2); glVertex2f(-1.5, -1.0);
-   glColor3f(1.0, 0.0, 0.2); glVertex2f( 1.5, -1.0);
-   glColor3f(0.0, 0.0, 1.0); glVertex2f( 1.5,  1.0);
-   glColor3f(0.0, 0.0, 1.0); glVertex2f(-1.5,  1.0);
-   glEnd();
-
-   glPushMatrix();
-   glRotatef(Rot, 0, 0, 1);
-
-   glEnable(GL_TEXTURE_2D);
-   glBegin(GL_POLYGON);
-   glTexCoord2f(0, 1);  glVertex2f(-1, -0.5);
-   glTexCoord2f(1, 1);  glVertex2f( 1, -0.5);
-   glTexCoord2f(1, 0);  glVertex2f( 1,  0.5);
-   glTexCoord2f(0, 0);  glVertex2f(-1,  0.5);
-   glEnd();
-
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho( -1.5, 1.5, -1.0, 1.0, -1.0, 1.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 27:
-         exit(0);
-         break;
-      case 's':
-         Rot += 0.5;
-         break;
-      case ' ':
-         Anim = !Anim;
-         if (Anim)
-            glutIdleFunc( Idle );
-         else
-            glutIdleFunc( NULL );
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
-#define HEIGHT 8
-#define WIDTH 32
-   /* 257 = HEIGHT * WIDTH + 1 (for trailing '\0') */
-   static char texture[257] = {"\
-                                \
-    MMM    EEEE   SSS    AAA    \
-   M M M  E      S   S  A   A   \
-   M M M  EEEE    SS    A   A   \
-   M M M  E         SS  AAAAA   \
-   M   M  E      S   S  A   A   \
-   M   M   EEEE   SSS   A   A   \
-                                "
-      };
-   GLubyte table[256][4];
-
-   if (!glutExtensionSupported("GL_EXT_paletted_texture")) {
-      printf("Sorry, GL_EXT_paletted_texture not supported\n");
-      exit(0);
-   }
-
-   /* load the color table for each texel-index */
-   memset(table, 0, 256*4);
-   table[' '][0] = 255;
-   table[' '][1] = 255;
-   table[' '][2] = 255;
-   table[' '][3] = 64;
-   table['M'][0] = 255;
-   table['M'][1] = 0;
-   table['M'][2] = 0;
-   table['M'][3] = 255;
-   table['E'][0] = 0;
-   table['E'][1] = 255;
-   table['E'][2] = 0;
-   table['E'][3] = 255;
-   table['S'][0] = 0;
-   table['S'][1] = 0;
-   table['S'][2] = 255;
-   table['S'][3] = 255;
-   table['A'][0] = 255;
-   table['A'][1] = 255;
-   table['A'][2] = 0;
-   table['A'][3] = 255;
-
-#ifdef GL_EXT_paletted_texture
-
-#if defined(GL_EXT_shared_texture_palette) && defined(USE_SHARED_PALETTE)
-   printf("Using shared palette\n");
-   glColorTableEXT(GL_SHARED_TEXTURE_PALETTE_EXT,    /* target */
-                   GL_RGBA,          /* internal format */
-                   256,              /* table size */
-                   GL_RGBA,          /* table format */
-                   GL_UNSIGNED_BYTE, /* table type */
-                   table);           /* the color table */
-   glEnable(GL_SHARED_TEXTURE_PALETTE_EXT);
-#else
-   glColorTableEXT(GL_TEXTURE_2D,    /* target */
-                   GL_RGBA,          /* internal format */
-                   256,              /* table size */
-                   GL_RGBA,          /* table format */
-                   GL_UNSIGNED_BYTE, /* table type */
-                   table);           /* the color table */
-#endif
-
-   glTexImage2D(GL_TEXTURE_2D,       /* target */
-                0,                   /* level */
-                GL_COLOR_INDEX8_EXT, /* internal format */
-                WIDTH, HEIGHT,       /* width, height */
-                0,                   /* border */
-                GL_COLOR_INDEX,      /* texture format */
-                GL_UNSIGNED_BYTE,    /* texture type */
-                texture);            /* the texture */
-#endif
-
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-   glEnable(GL_TEXTURE_2D);
-
-   glEnable(GL_BLEND);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-#undef HEIGHT
-#undef WIDTH
-}
-
-
-
-/*
- * Color ramp test
- */
-static void Init2( void )
-{
-#define HEIGHT 32
-#define WIDTH 256
-   static char texture[HEIGHT][WIDTH];
-   GLubyte table[256][4];
-   int i, j;
-
-   if (!glutExtensionSupported("GL_EXT_paletted_texture")) {
-      printf("Sorry, GL_EXT_paletted_texture not supported\n");
-      exit(0);
-   }
-
-   for (j = 0; j < HEIGHT; j++) {
-      for (i = 0; i < WIDTH; i++) {
-         texture[j][i] = i;
-      }
-   }
-
-   for (i = 0; i < 255; i++) {
-      table[i][0] = i;
-      table[i][1] = 0;
-      table[i][2] = 0;
-      table[i][3] = 255;
-   }
-
-#ifdef GL_EXT_paletted_texture
-
-#if defined(GL_EXT_shared_texture_palette) && defined(USE_SHARED_PALETTE)
-   printf("Using shared palette\n");
-   glColorTableEXT(GL_SHARED_TEXTURE_PALETTE_EXT,    /* target */
-                   GL_RGBA,          /* internal format */
-                   256,              /* table size */
-                   GL_RGBA,          /* table format */
-                   GL_UNSIGNED_BYTE, /* table type */
-                   table);           /* the color table */
-   glEnable(GL_SHARED_TEXTURE_PALETTE_EXT);
-#else
-   glColorTableEXT(GL_TEXTURE_2D,    /* target */
-                   GL_RGBA,          /* internal format */
-                   256,              /* table size */
-                   GL_RGBA,          /* table format */
-                   GL_UNSIGNED_BYTE, /* table type */
-                   table);           /* the color table */
-#endif
-
-   glTexImage2D(GL_TEXTURE_2D,       /* target */
-                0,                   /* level */
-                GL_COLOR_INDEX8_EXT, /* internal format */
-                WIDTH, HEIGHT,       /* width, height */
-                0,                   /* border */
-                GL_COLOR_INDEX,      /* texture format */
-                GL_UNSIGNED_BYTE,    /* texture type */
-                texture);            /* teh texture */
-#endif
-
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-   glEnable(GL_TEXTURE_2D);
-
-   glEnable(GL_BLEND);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 400, 300 );
-
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-
-   glutCreateWindow(argv[0]);
-
-   Init();
-   (void) Init2; /* silence warning */
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutDisplayFunc( Display );
-   if (Anim)
-      glutIdleFunc( Idle );
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/particles.cxx b/nx-X11/extras/Mesa_6.4.1/progs/demos/particles.cxx
deleted file mode 100644
index b88c318e0..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/particles.cxx
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (humanware@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdlib.h>
-
-#include "particles.h"
-
-#define vinit(a,i,j,k) {\
-  (a)[0]=i;\
-  (a)[1]=j;\
-  (a)[2]=k;\
-}
-
-#define vadds(a,dt,b) {\
-  (a)[0]+=(dt)*(b)[0];\
-  (a)[1]+=(dt)*(b)[1];\
-  (a)[2]+=(dt)*(b)[2];\
-}
-
-#define vequ(a,b) {\
-  (a)[0]=(b)[0];\
-  (a)[1]=(b)[1];\
-  (a)[2]=(b)[2];\
-}
-
-#define vinter(a,dt,b,c) {\
-  (a)[0]=(dt)*(b)[0]+(1.0-dt)*(c)[0];\
-  (a)[1]=(dt)*(b)[1]+(1.0-dt)*(c)[1];\
-  (a)[2]=(dt)*(b)[2]+(1.0-dt)*(c)[2];\
-}
-
-#define clamp(a)        ((a) < 0.0 ? 0.0 : ((a) < 1.0 ? (a) : 1.0))
-
-#define vclamp(v) {\
-  (v)[0]=clamp((v)[0]);\
-  (v)[1]=clamp((v)[1]);\
-  (v)[2]=clamp((v)[2]);\
-}
-
-
-float rainParticle::min[3];
-float rainParticle::max[3];
-float rainParticle::partLength=0.2f;
-
-
-static float vrnd(void)
-{
-  return(((float)rand())/RAND_MAX);
-}
-
-
-particle::particle()
-{
-  age=0.0f;
-
-  vinit(acc,0.0f,0.0f,0.0f);
-  vinit(vel,0.0f,0.0f,0.0f);
-  vinit(pos,0.0f,0.0f,0.0f);
-}
-
-void particle::elapsedTime(float dt)
-{
-  age+=dt;
-
-  vadds(vel,dt,acc);
-
-  vadds(pos,dt,vel);
-}
-
-/////////////////////////////////////////
-// Particle System
-/////////////////////////////////////////
-
-particleSystem::particleSystem()
-{
-  t=0.0f;
-
-  part=NULL;
-
-  particleNum=0;
-}
-
-particleSystem::~particleSystem()
-{
-  if(part)
-    free(part);
-}
-
-void particleSystem::addParticle(particle *p)
-{
-  if(!part) {
-    part=(particle **)calloc(1,sizeof(particle *));
-    part[0]=p;
-    particleNum=1;
-  } else {
-    particleNum++;
-    part=(particle **)realloc(part,sizeof(particle *)*particleNum);
-    part[particleNum-1]=p;
-  }
-}
-
-void particleSystem::reset(void)
-{
-  if(part)
-    free(part);
-
-  t=0.0f;
-
-  part=NULL;
-
-  particleNum=0;
-}
-
-void particleSystem::draw(void)
-{
-  if(!part)
-    return;
-
-  part[0]->beginDraw();
-  for(unsigned int i=0;i<particleNum;i++)
-    part[i]->draw();
-  part[0]->endDraw();
-}
-
-void particleSystem::addTime(float dt)
-{
-  if(!part)
-    return;
-
-  for(unsigned int i=0;i<particleNum;i++) {
-    part[i]->elapsedTime(dt);
-    part[i]->checkAge();
-  }
-}
-
-/////////////////////////////////////////
-// Rain
-/////////////////////////////////////////
-
-void rainParticle::init(void)
-{
-  age=0.0f;
-
-  acc[0]=0.0f;
-  acc[1]=-0.98f;
-  acc[2]=0.0f;
-
-  vel[0]=0.0f;
-  vel[1]=0.0f;
-  vel[2]=0.0f;
-
-  oldpos[0]=pos[0]=min[0]+(max[0]-min[0])*vrnd();
-  oldpos[1]=pos[1]=max[1]+0.2f*max[1]*vrnd();
-  oldpos[2]=pos[2]=min[2]+(max[2]-min[2])*vrnd();
-
-  vadds(oldpos,-partLength,vel);
-}
-
-rainParticle::rainParticle()
-{ 
-  init();
-}
-
-void rainParticle::setRainingArea(float minx, float miny, float minz,
-				  float maxx, float maxy, float maxz)
-{
-  vinit(min,minx,miny,minz);
-  vinit(max,maxx,maxy,maxz);
-}
-
-void rainParticle::setLength(float l)
-{
-  partLength=l;
-}
-
-void rainParticle::draw(void)
-{
-  glColor4f(0.7f,0.95f,1.0f,0.0f);
-  glVertex3fv(oldpos);
-
-  glColor4f(0.3f,0.7f,1.0f,1.0f);
-  glVertex3fv(pos);
-}
-
-void rainParticle::checkAge(void)
-{
-  if(pos[1]<min[1])
-    init();
-}
-
-void rainParticle::elapsedTime(float dt)
-{
-  particle::elapsedTime(dt);
-
-  if(pos[0]<min[0])
-    pos[0]=max[0]-(min[0]-pos[0]);
-  if(pos[2]<min[2])
-    pos[2]=max[2]-(min[2]-pos[2]);
-
-  if(pos[0]>max[0])
-    pos[0]=min[0]+(pos[0]-max[0]);
-  if(pos[2]>max[2])
-    pos[2]=min[2]+(pos[2]-max[2]);
-
-  vequ(oldpos,pos);
-  vadds(oldpos,-partLength,vel);
-}
-
-void rainParticle::randomHeight(void)
-{
-  pos[1]=(max[1]-min[1])*vrnd()+min[1];
-
-  oldpos[1]=pos[1]-partLength*vel[1];
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/particles.h b/nx-X11/extras/Mesa_6.4.1/progs/demos/particles.h
deleted file mode 100644
index a49dd691e..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/particles.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (humanware@plus.it)
- *            Humanware s.r.l.
- */
-
-#ifndef PARTICLES_H
-#define PARTICLES_H
-
-#include <GL/gl.h>
-
-class particle {
- protected:
-  float age;         // in seconds
-  float acc[3];
-  float vel[3];
-  float pos[3];
-
- public:
-  particle();
-  virtual ~particle() {};
-
-  virtual void beginDraw(void) {};
-  virtual void draw(void)=0;
-  virtual void endDraw(void) {};
-
-  virtual void elapsedTime(float);
-  virtual void checkAge(void) {};
-};
-
-class particleSystem {
- protected:
-  particle **part;
-
-  float t;
-
-  unsigned long particleNum;
- public:
-  particleSystem();
-  ~particleSystem();
-
-  void addParticle(particle *);
-
-  void reset(void);
-
-  void draw(void);
-
-  void addTime(float);
-};
-
-class rainParticle : public particle {
- protected:
-  static float min[3];
-  static float max[3];
-  static float partLength;
-
-  float oldpos[3];
-
-  void init(void);
- public:
-  rainParticle();
-
-  static void setRainingArea(float, float, float,
-			     float, float, float);
-  static void setLength(float);
-  static float getLength(void) { return partLength; };
-
-  void beginDraw(void) { glBegin(GL_LINES); };
-  void draw(void);
-  void endDraw(void) { glEnd(); };
-
-  void elapsedTime(float);
-
-  void checkAge(void);
-
-  void randomHeight(void);
-};
-
-#endif
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/pixeltex.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/pixeltex.c
deleted file mode 100644
index 03e653a45..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/pixeltex.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * GL_SGIS_pixel_texture demo
- *
- * Brian Paul
- * 6 Apr 2000
- *
- * Copyright (C) 2000  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.
- */
-
-
-/*
- * How this works:
- * 1. We load the image into a 2D texture.
- * 2. We generate a sequence of RGB images in which the R component
- *    is really the S texture coordinate and the G component is really
- *    the T texture coordinate.
- *    By warping the mapping from R to S and G to T we can get non-linear
- *    distortions.
- * 3. Draw the warped image (a 2-D warping function) with pixel texgen
- *    enabled.
- * 4. Loop over the warped images to animate.
- *
- * The pixel texgen extension can also be used to do color-space
- * conversions.  For example, we could convert YCR to RGB with a
- * 3D texture map which takes YCR as the S,T,R texture coordinate and
- * returns RGB texel values.
- *
- * You can use this extension in (at least) two ways:
- * 1. glDrawPixels w/ color space conversion/warping
- * 2. glDrawPixels to spatially warp another image in texture memory
- *
- * We're basically using glDrawPixels to draw a texture coordinate image.
- */
-
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <GL/glut.h>
-#include <GL/glext.h>
-#include "readtex.h"
-
-#define TEXTURE_FILE "../images/girl.rgb"
-
-static int ImgWidth = 300, ImgHeight = 300;
-#define FRAMES 20
-static GLubyte *ImgData[FRAMES];
-static GLint Frame = 0;
-
-static GLboolean TextureFlag = GL_TRUE;
-
-
-static void Display( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   if (TextureFlag) {
-      glEnable(GL_PIXEL_TEXTURE_SGIS);
-      glEnable(GL_TEXTURE_2D);
-   }
-   else {
-      glDisable(GL_PIXEL_TEXTURE_SGIS);
-      glDisable(GL_TEXTURE_2D);
-   }
-
-   glColor3f(1, 1, 1);
-   glRasterPos2f(10, 10);
-   glDrawPixels(ImgWidth, ImgHeight, GL_RGB, GL_UNSIGNED_BYTE, ImgData[Frame]);
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho(0, width, 0, height, -1, 1);
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case ' ':
-         TextureFlag = !TextureFlag;
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Idle(void)
-{
-   Frame++;
-   if (Frame >= FRAMES)
-      Frame = 0;
-   glutPostRedisplay();
-}
-
-
-static GLubyte warp(GLfloat s, int frame)
-{
-   static const GLfloat pi = 3.14159265;
-   static int halfFrame = FRAMES / 2;
-   GLfloat y, weight, v;
-   if (frame >= halfFrame)
-      frame = halfFrame - (frame - halfFrame);
-   y = sin(s * pi);
-   weight = (float) frame / (FRAMES-1);
-   v = y * (0.8 * weight + 0.2);
-   return (GLint) (v * 255.0F);
-}
-
-
-static void InitImage(void)
-{
-   int i, j, frame;
-   for (frame = 0; frame < FRAMES; frame++) {
-      ImgData[frame] = (GLubyte *) malloc(ImgWidth * ImgHeight * 3);
-      for (i = 0; i < ImgHeight; i++) {
-         for (j = 0; j < ImgWidth; j++) {
-            GLubyte *pixel = ImgData[frame] + (i * ImgWidth + j) * 3;
-            pixel[0] = warp((float) j / (ImgWidth - 0), frame);
-            pixel[1] = warp((float) i / (ImgHeight - 0), frame);
-            pixel[2] = 0.0;
-         }
-      }
-   }
-}
-
-
-static void Init( int argc, char *argv[] )
-{
-   const char *exten = (const char *) glGetString(GL_EXTENSIONS);
-   if (!strstr(exten, "GL_SGIS_pixel_texture")) {
-      printf("Sorry, GL_SGIS_pixel_texture not supported by this renderer.\n");
-      exit(1);
-   }
-
-   /* linear filtering looks nicer, but it's slower, since it's in software */
-#if 1
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-#else
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-#endif
-
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-   if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) {
-      printf("Error: couldn't load texture image\n");
-      exit(1);
-   }
-
-   glClearColor(0.3, 0.3, 0.4, 1.0);
-
-   InitImage();
-
-   printf("Hit SPACE to toggle pixel texgen\n");
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowSize( 330, 330 );
-   glutInitWindowPosition( 0, 0 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-   glutCreateWindow(argv[0] );
-
-   Init( argc, argv );
-
-   glutKeyboardFunc( Key );
-   glutReshapeFunc( Reshape );
-   glutDisplayFunc( Display );
-   glutIdleFunc( Idle );
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/pointblast.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/pointblast.c
deleted file mode 100644
index 715813f17..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/pointblast.c
+++ /dev/null
@@ -1,498 +0,0 @@
-
-/* Copyright (c) Mark J. Kilgard, 1997.  */
-
-/* This program is freely distributable without licensing fees 
-   and is provided without guarantee or warrantee expressed or 
-   implied. This program is -not- in the public domain. */
-
-/* This example demonstrates how to render particle effects
-   with OpenGL.  A cloud of pinkish/orange particles explodes with the
-   particles bouncing off the ground.  When the EXT_point_parameters
-   is present , the particle size is attenuated based on eye distance. */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>       /* for cos(), sin(), and sqrt() */
-#ifdef _WIN32
-#include <windows.h>
-#endif
-#define GL_GLEXT_PROTOTYPES
-#include <GL/glut.h>
-
-/* Some <math.h> files do not define M_PI... */
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-#if 0  /* For debugging. */
-#undef GL_EXT_point_parameters
-#endif
-
-static GLfloat angle = -150;   /* in degrees */
-static int spin = 0;
-static int moving, begin;
-static int newModel = 1;
-static float theTime;
-static int repeat = 1;
-static int blend = 1;
-int useMipmaps = 1;
-int linearFiltering = 1;
-
-static GLfloat constant[3] = { 1/5.0, 0.0, 0.0 };
-static GLfloat linear[3] = { 0.0, 1/5.0, 0.0 };
-static GLfloat theQuad[3] = { 0.25, 0.0, 1/60.0 };
-
-#define MAX_POINTS 2000
-
-static int numPoints = 200;
-
-static GLfloat pointList[MAX_POINTS][3];
-static GLfloat pointTime[MAX_POINTS];
-static GLfloat pointVelocity[MAX_POINTS][2];
-static GLfloat pointDirection[MAX_POINTS][2];
-static int colorList[MAX_POINTS];
-static int animate = 1, motion = 0;
-
-static GLfloat colorSet[][4] = {
-  /* Shades of red. */
-  { 0.7, 0.2, 0.4, 0.5 },
-  { 0.8, 0.0, 0.7, 0.5 },
-  { 1.0, 0.0, 0.0, 0.5 },
-  { 0.9, 0.3, 0.6, 0.5 },
-  { 1.0, 0.4, 0.0, 0.5 },
-  { 1.0, 0.0, 0.5, 0.5 },
-};
-
-#define NUM_COLORS (sizeof(colorSet)/sizeof(colorSet[0]))
-
-#define DEAD (NUM_COLORS+1)
-
-
-#if 0  /* drand48 might be better on Unix machines */
-#define RANDOM_RANGE(lo, hi) ((lo) + (hi - lo) * drand48())
-#else
-static float float_rand(void) { return rand() / (float) RAND_MAX; }
-#define RANDOM_RANGE(lo, hi) ((lo) + (hi - lo) * float_rand())
-#endif
-
-#define MEAN_VELOCITY 3.0
-#define GRAVITY 2.0
-
-/* Modeling units of ground extent in each X and Z direction. */
-#define EDGE 12
-
-static void
-makePointList(void)
-{
-  float angle, velocity, direction;
-  int i;
-
-  motion = 1;
-  for (i=0; i<numPoints; i++) {
-    pointList[i][0] = 0.0;
-    pointList[i][1] = 0.0;
-    pointList[i][2] = 0.0;
-    pointTime[i] = 0.0;
-    angle = (RANDOM_RANGE(60.0, 70.0)) * M_PI/180.0;
-    direction = RANDOM_RANGE(0.0, 360.0) * M_PI/180.0;
-    pointDirection[i][0] = cos(direction);
-    pointDirection[i][1] = sin(direction);
-    velocity = MEAN_VELOCITY + RANDOM_RANGE(-0.8, 1.0);
-    pointVelocity[i][0] = velocity * cos(angle);
-    pointVelocity[i][1] = velocity * sin(angle);
-    colorList[i] = rand() % NUM_COLORS;
-  }
-  theTime = 0.0;
-}
-
-static void
-updatePointList(void)
-{
-  float distance;
-  int i;
-
-  static double t0 = -1.;
-  double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-  if (t0 < 0.0)
-    t0 = t;
-  dt = t - t0;
-  t0 = t;
-
-  motion = 0;
-  for (i=0; i<numPoints; i++) {
-    distance = pointVelocity[i][0] * theTime;
-
-    /* X and Z */
-    pointList[i][0] = pointDirection[i][0] * distance;
-    pointList[i][2] = pointDirection[i][1] * distance;
-
-    /* Z */
-    pointList[i][1] =
-      (pointVelocity[i][1] - 0.5 * GRAVITY * pointTime[i])*pointTime[i];
-
-    /* If we hit the ground, bounce the point upward again. */
-    if (pointList[i][1] <= 0.0) {
-      if (distance > EDGE) {
-        /* Particle has hit ground past the distance duration of
-          the particles.  Mark particle as dead. */
-       colorList[i] = NUM_COLORS;  /* Not moving. */
-       continue;
-      }
-
-      pointVelocity[i][1] *= 0.8;  /* 80% of previous up velocity. */
-      pointTime[i] = 0.0;  /* Reset the particles sense of up time. */
-    }
-    motion = 1;
-    pointTime[i] += dt;
-  }
-  theTime += dt;
-  if (!motion && !spin) {
-    if (repeat) {
-      makePointList();
-    } else {
-      glutIdleFunc(NULL);
-    }
-  }
-}
-
-static void
-idle(void)
-{
-  updatePointList();
-  if (spin) {
-    angle += 0.3;
-    newModel = 1;
-  }
-  glutPostRedisplay();
-}
-
-static void
-visible(int vis)
-{
-  if (vis == GLUT_VISIBLE) {
-    if (animate && (motion || spin)) {
-      glutIdleFunc(idle);
-    }
-  } else {
-    glutIdleFunc(NULL);
-  }
-}
-
-static void
-recalcModelView(void)
-{
-  glPopMatrix();
-  glPushMatrix();
-  glRotatef(angle, 0.0, 1.0, 0.0);
-  newModel = 0;
-}
-
-static void
-redraw(void)
-{
-  int i;
-
-  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-  if (newModel)
-    recalcModelView();
-
-  glDepthMask(GL_FALSE);
-
-  /* Draw the floor. */
-/*  glEnable(GL_TEXTURE_2D);*/
-  glColor3f(0.5, 1.0, 0.5);
-  glBegin(GL_QUADS);
-    glTexCoord2f(0.0, 0.0);
-    glVertex3f(-EDGE, -0.05, -EDGE);
-    glTexCoord2f(20.0, 0.0);
-    glVertex3f(EDGE, -0.05, -EDGE);
-    glTexCoord2f(20.0, 20.0);
-    glVertex3f(EDGE, -0.05, EDGE);
-    glTexCoord2f(0.0, 20.0);
-    glVertex3f(-EDGE, -0.05, EDGE);
-  glEnd();
-
-  /* Allow particles to blend with each other. */
-  glDepthMask(GL_TRUE);
-
-  if (blend)
-     glEnable(GL_BLEND);
-
-  glDisable(GL_TEXTURE_2D);
-  glBegin(GL_POINTS);
-    for (i=0; i<numPoints; i++) {
-      /* Draw alive particles. */
-      if (colorList[i] != DEAD) {
-        glColor4fv(colorSet[colorList[i]]);
-        glVertex3fv(pointList[i]);
-      }
-    }
-  glEnd();
-
-  glDisable(GL_BLEND);
-
-  glutSwapBuffers();
-}
-
-/* ARGSUSED2 */
-static void
-mouse(int button, int state, int x, int y)
-{
-  /* Scene can be spun around Y axis using left
-     mouse button movement. */
-  if (button == GLUT_LEFT_BUTTON && state == GLUT_DOWN) {
-    moving = 1;
-    begin = x;
-  }
-  if (button == GLUT_LEFT_BUTTON && state == GLUT_UP) {
-    moving = 0;
-  }
-}
-
-/* ARGSUSED1 */
-static void
-mouseMotion(int x, int y)
-{
-  if (moving) {
-    angle = angle + (x - begin);
-    begin = x;
-    newModel = 1;
-    glutPostRedisplay();
-  }
-}
-
-static void
-menu(int option)
-{
-  switch (option) {
-  case 0:
-    makePointList();
-    break;
-#ifdef GL_ARB_point_parameters
-  case 1:
-    glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, constant);
-    break;
-  case 2:
-    glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, linear);
-    break;
-  case 3:
-    glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, theQuad);
-    break;
-#endif
-  case 4:
-    blend = 1;
-    break;
-  case 5:
-    blend = 0;
-    break;
-#ifdef GL_ARB_point_parameters
-  case 6:
-    glPointParameterfARB(GL_POINT_FADE_THRESHOLD_SIZE_ARB, 1.0);
-    break;
-  case 7:
-    glPointParameterfARB(GL_POINT_FADE_THRESHOLD_SIZE_ARB, 10.0);
-    break;
-#endif
-  case 8:
-    glEnable(GL_POINT_SMOOTH);
-    break;
-  case 9:
-    glDisable(GL_POINT_SMOOTH);
-    break;
-  case 10:
-    glPointSize(2.0);
-    break;
-  case 11:
-    glPointSize(4.0);
-    break;
-  case 12:
-    glPointSize(8.0);
-    break;
-  case 13:
-    spin = 1 - spin;
-    if (animate && (spin || motion)) {
-      glutIdleFunc(idle);
-    } else {
-      glutIdleFunc(NULL);
-    }
-    break;
-  case 14:
-    numPoints = 200;
-    break;
-  case 15:
-    numPoints = 500;
-    break;
-  case 16:
-    numPoints = 1000;
-    break;
-  case 17:
-    numPoints = 2000;
-    break;
-  case 666:
-    exit(0);
-  }
-  glutPostRedisplay();
-}
-
-/* ARGSUSED1 */
-static void
-key(unsigned char c, int x, int y)
-{
-  switch (c) {
-  case 13:
-    animate = 1 - animate;  /* toggle. */
-    if (animate && (motion || spin)) {
-      glutIdleFunc(idle);
-    } else {
-      glutIdleFunc(NULL);
-    }
-    break;
-  case ' ':
-    animate = 1;
-    makePointList();
-    glutIdleFunc(idle);
-    break;
-  case 27:
-    exit(0);
-  }
-}
-
-/* Nice floor texture tiling pattern. */
-static char *circles[] = {
-  "....xxxx........",
-  "..xxxxxxxx......",
-  ".xxxxxxxxxx.....",
-  ".xxx....xxx.....",
-  "xxx......xxx....",
-  "xxx......xxx....",
-  "xxx......xxx....",
-  "xxx......xxx....",
-  ".xxx....xxx.....",
-  ".xxxxxxxxxx.....",
-  "..xxxxxxxx......",
-  "....xxxx........",
-  "................",
-  "................",
-  "................",
-  "................",
-};
-
-static void
-makeFloorTexture(void)
-{
-  GLubyte floorTexture[16][16][3];
-  GLubyte *loc;
-  int s, t;
-
-  /* Setup RGB image for the texture. */
-  loc = (GLubyte*) floorTexture;
-  for (t = 0; t < 16; t++) {
-    for (s = 0; s < 16; s++) {
-      if (circles[t][s] == 'x') {
-        /* Nice blue. */
-        loc[0] = 0x1f;
-        loc[1] = 0x1f;
-        loc[2] = 0x8f;
-      } else {
-        /* Light gray. */
-        loc[0] = 0xca;
-        loc[1] = 0xca;
-        loc[2] = 0xca;
-      }
-      loc += 3;
-    }
-  }
-
-  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-  if (useMipmaps) {
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-      GL_LINEAR_MIPMAP_LINEAR);
-    gluBuild2DMipmaps(GL_TEXTURE_2D, 3, 16, 16,
-      GL_RGB, GL_UNSIGNED_BYTE, floorTexture);
-  } else {
-    if (linearFiltering) {
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-    } else {
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    }
-    glTexImage2D(GL_TEXTURE_2D, 0, 3, 16, 16, 0,
-      GL_RGB, GL_UNSIGNED_BYTE, floorTexture);
-  }
-}
-
-int
-main(int argc, char **argv)
-{
-  int i;
-  glutInit(&argc, argv);
-  glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_MULTISAMPLE);
-  glutInitWindowPosition(0, 0);
-  glutInitWindowSize(300, 300);
-
-  for (i=1; i<argc; i++) {
-    if(!strcmp("-noms", argv[i])) {
-      glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
-      printf("forcing no multisampling\n");
-    } else if(!strcmp("-nomipmaps", argv[i])) {
-      useMipmaps = 0;
-    } else if(!strcmp("-nearest", argv[i])) {
-      linearFiltering = 0;
-    }
-  }
-
-  glutCreateWindow("point burst");
-  glutDisplayFunc(redraw);
-  glutMouseFunc(mouse);
-  glutMotionFunc(mouseMotion);
-  glutVisibilityFunc(visible);
-  glutKeyboardFunc(key);
-  glutCreateMenu(menu);
-  glutAddMenuEntry("Reset time", 0);
-  glutAddMenuEntry("Constant", 1);
-  glutAddMenuEntry("Linear", 2);
-  glutAddMenuEntry("Quadratic", 3);
-  glutAddMenuEntry("Blend on", 4);
-  glutAddMenuEntry("Blend off", 5);
-  glutAddMenuEntry("Threshold 1", 6);
-  glutAddMenuEntry("Threshold 10", 7);
-  glutAddMenuEntry("Point smooth on", 8);
-  glutAddMenuEntry("Point smooth off", 9);
-  glutAddMenuEntry("Point size 2", 10);
-  glutAddMenuEntry("Point size 4", 11);
-  glutAddMenuEntry("Point size 8", 12);
-  glutAddMenuEntry("Toggle spin", 13);
-  glutAddMenuEntry("200 points ", 14);
-  glutAddMenuEntry("500 points ", 15);
-  glutAddMenuEntry("1000 points ", 16);
-  glutAddMenuEntry("2000 points ", 17);
-  glutAddMenuEntry("Quit", 666);
-  glutAttachMenu(GLUT_RIGHT_BUTTON);
-
-  glShadeModel(GL_FLAT);
-  glEnable(GL_DEPTH_TEST);
-  glEnable(GL_POINT_SMOOTH);
-  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-  glPointSize(8.0);
-#if GL_ARB_point_parameters
-  glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, theQuad);
-#endif
-  glMatrixMode(GL_PROJECTION);
-  gluPerspective( /* field of view in degree */ 40.0,
-  /* aspect ratio */ 1.0,
-    /* Z near */ 0.5, /* Z far */ 40.0);
-  glMatrixMode(GL_MODELVIEW);
-  gluLookAt(0.0, 1.0, 8.0, /* eye location */
-    0.0, 1.0, 0.0,      /* center is at (0,0,0) */
-    0.0, 1.0, 0.);      /* up is in postivie Y direction */
-  glPushMatrix();       /* dummy push so we can pop on model
-                           recalc */
-
-  makePointList();
-  makeFloorTexture();
-
-  glutMainLoop();
-  return 0;             /* ANSI C requires main to return int. */
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/rain.cxx b/nx-X11/extras/Mesa_6.4.1/progs/demos/rain.cxx
deleted file mode 100644
index d19f049c5..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/rain.cxx
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (humanware@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <time.h>
-#include <GL/glut.h>
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-#include "particles.h"
-extern "C" {
-#include "readtex.h"
-}
-
-#ifdef _WIN32
-#include <windows.h>
-#include <mmsystem.h>
-#include "particles.cxx"
-#include "readtex.c"
-#endif
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen=1;
-#endif
-
-static int WIDTH=640;
-static int HEIGHT=480;
-static int NUMPART=7500;
-
-#define FRAME 50
-
-static float fogcolor[4]={1.0,1.0,1.0,1.0};
-
-#define DIMP 40.0
-#define DIMTP 32.0
-
-static float q[4][3]={
-  {-DIMP,0.0,-DIMP},
-  {DIMP,0.0,-DIMP},
-  {DIMP,0.0,DIMP},
-  {-DIMP,0.0,DIMP}
-};
-
-static float qt[4][2]={
-  {-DIMTP,-DIMTP},
-  {DIMTP,-DIMTP},
-  {DIMTP,DIMTP},
-  {-DIMTP,DIMTP}
-};
-
-static int win=0;
-
-static int fog=1;
-static int help=1;
-
-static GLuint groundid;
-
-static float obs[3]={2.0,1.0,0.0};
-static float dir[3];
-static float v=0.0;
-static float alpha=-90.0;
-static float beta=90.0;
-
-static particleSystem *ps;
-
-static float gettime()
-{
-  static clock_t told=0;
-  clock_t tnew,ris;
-
-  tnew=clock();
-
-  ris=tnew-told;
-
-  told=tnew;
-
-  return(ris/(float)CLOCKS_PER_SEC);
-}
-
-static float gettimerain()
-{
-  static clock_t told=0;
-  clock_t tnew,ris;
-
-  tnew=clock();
-
-  ris=tnew-told;
-
-  told=tnew;
-
-  return(ris/(float)CLOCKS_PER_SEC);
-}
-
-static void calcposobs(void)
-{
-  dir[0]=sin(alpha*M_PI/180.0);
-  dir[2]=cos(alpha*M_PI/180.0)*sin(beta*M_PI/180.0);
-  dir[1]=cos(beta*M_PI/180.0);
-
-  obs[0]+=v*dir[0];
-  obs[1]+=v*dir[1];
-  obs[2]+=v*dir[2];
-
-  rainParticle::setRainingArea(obs[0]-7.0f,-0.2f,obs[2]-7.0f,obs[0]+7.0f,8.0f,obs[2]+7.0f);
-}
-
-static void printstring(void *font, char *string)
-{
-  int len,i;
-
-  len=(int)strlen(string);
-  for(i=0;i<len;i++)
-    glutBitmapCharacter(font,string[i]);
-}
-
-static void reshape(int width, int height)
-{
-  WIDTH=width;
-  HEIGHT=height;
-  glViewport(0,0,(GLint)width,(GLint)height);
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  gluPerspective(70.0,width/(float)height,0.1,30.0);
-
-  glMatrixMode(GL_MODELVIEW);
-}
-
-static void printhelp(void)
-{
-  glEnable(GL_BLEND);
-  glColor4f(0.0,0.0,0.0,0.5);
-  glRecti(40,40,600,440);
-  glDisable(GL_BLEND);
-
-  glColor3f(1.0,0.0,0.0);
-  glRasterPos2i(300,420);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"Help");
-
-  glRasterPos2i(60,390);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"h - Toggle Help");
-
-  glRasterPos2i(60,360);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"f - Toggle Fog");
-  glRasterPos2i(60,330);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"Arrow Keys - Rotate");
-  glRasterPos2i(60,300);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"a - Increase velocity");
-  glRasterPos2i(60,270);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"z - Decrease velocity");
-  glRasterPos2i(60,240);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"l - Increase rain length");
-  glRasterPos2i(60,210);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"k - Increase rain length");
-}
-
-static void drawrain(void)
-{
-  static int count=0;
-  static char frbuf[80];
-  float fr;
-
-  glEnable(GL_DEPTH_TEST);
-
-  if(fog)
-    glEnable(GL_FOG);
-  else
-    glDisable(GL_FOG);
-
-  glDepthMask(GL_TRUE);
-  glClearColor(1.0,1.0,1.0,1.0);
-  glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
-
-  glPushMatrix();
-  calcposobs();
-  gluLookAt(obs[0],obs[1],obs[2],
-	    obs[0]+dir[0],obs[1]+dir[1],obs[2]+dir[2],
-	    0.0,1.0,0.0);
-
-  glColor4f(1.0,1.0,1.0,1.0);
-
-  glEnable(GL_TEXTURE_2D);
-
-  glBindTexture(GL_TEXTURE_2D,groundid);
-  glBegin(GL_QUADS);
-  glTexCoord2fv(qt[0]);
-  glVertex3fv(q[0]);
-  glTexCoord2fv(qt[1]);
-  glVertex3fv(q[1]);
-  glTexCoord2fv(qt[2]);
-  glVertex3fv(q[2]);
-  glTexCoord2fv(qt[3]);
-  glVertex3fv(q[3]);
-  glEnd();
-
-  // Particle System
-
-  glDisable(GL_TEXTURE_2D);
-  glShadeModel(GL_SMOOTH);
-  glEnable(GL_BLEND);
-
-  ps->draw();
-  ps->addTime(gettimerain());
-  
-  glShadeModel(GL_FLAT);
- 
-
-  if((count % FRAME)==0) {
-    fr=gettime();
-    sprintf(frbuf,"Frame rate: %f",FRAME/fr);
-  }
-
-  glDisable(GL_TEXTURE_2D);
-  glDisable(GL_DEPTH_TEST);
-  glDisable(GL_FOG);
-
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glOrtho(-0.5,639.5,-0.5,479.5,-1.0,1.0);
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-
-  glColor3f(1.0,0.0,0.0);
-  glRasterPos2i(10,10);
-  printstring(GLUT_BITMAP_HELVETICA_18,frbuf);
-  glRasterPos2i(350,470);
-  printstring(GLUT_BITMAP_HELVETICA_10,"Rain V1.0 Written by David Bucciarelli (humanware@plus.it)");
-
-  if(help)
-    printhelp();
-
-  reshape(WIDTH,HEIGHT);
-  glPopMatrix();
-
-  glutSwapBuffers();
-
-  count++;
-}
-
-
-static void special(int key, int x, int y)
-{
-  switch (key) {
-  case GLUT_KEY_LEFT:
-    alpha+=2.0;
-    break;
-  case GLUT_KEY_RIGHT:
-    alpha-=2.0;
-    break;
-  case GLUT_KEY_DOWN:
-    beta-=2.0;
-    break;
-  case GLUT_KEY_UP:
-    beta+=2.0;
-    break;
-  }
-}
-
-static void key(unsigned char key, int x, int y)
-{
-  switch (key) {
-  case 27:
-    exit(0);
-    break;
-
-  case 'a':
-    v+=0.01;
-    break;
-  case 'z':
-    v-=0.01;
-    break;
-
-  case 'l':
-    rainParticle::setLength(rainParticle::getLength()+0.025f);
-    break;
-  case 'k':
-    rainParticle::setLength(rainParticle::getLength()-0.025f);
-    break;
-
-  case 'h':
-    help=(!help);
-    break;
-  case 'f':
-    fog=(!fog);
-    break;
-#ifdef XMESA
-  case ' ':
-    XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-    fullscreen=(!fullscreen);
-    break;
-#endif
-  }
-}
-
-static void inittextures(void)
-{
-  GLubyte *img;
-  GLint width,height;
-  GLenum format;
-  GLenum gluerr;
-
-  glGenTextures(1,&groundid);
-  glBindTexture(GL_TEXTURE_2D,groundid);
-
-  if(!(img=LoadRGBImage("../images/s128.rgb",&width,&height,&format))){
-  	fprintf(stderr,"Error reading a texture.\n");
-  	exit(-1);
-  }
-  glPixelStorei(GL_UNPACK_ALIGNMENT,4);
-  if((gluerr=(GLenum)gluBuild2DMipmaps(GL_TEXTURE_2D, 3, width, height,GL_RGB,
-			       GL_UNSIGNED_BYTE, (GLvoid *)(img)))) {
-    fprintf(stderr,"GLULib%s\n",gluErrorString(gluerr));
-    exit(-1);
-  }
-
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
-
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_LINEAR);
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
-
-  glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_DECAL);
-}
-
-static void initparticle(void)
-{
-  ps=new particleSystem;
-
-  rainParticle::setRainingArea(-7.0f,-0.2f,-7.0f,7.0f,8.0f,7.0f);
-
-  for(int i=0;i<NUMPART;i++) {
-    rainParticle *p=new rainParticle;
-    p->randomHeight();
-
-    ps->addParticle((particle *)p);
-  }
-}
-
-int main(int ac,char **av)
-{
-  fprintf(stderr,"Rain V1.0\nWritten by David Bucciarelli (humanware@plus.it)\n");
-
-  /* Default settings */
-
-  WIDTH=640;
-  HEIGHT=480;
-
-  glutInitWindowPosition(0,0);
-  glutInitWindowSize(WIDTH,HEIGHT);
-  glutInit(&ac,av);
-
-  glutInitDisplayMode(GLUT_RGB|GLUT_DEPTH|GLUT_DOUBLE);
-
-  if(!(win=glutCreateWindow("Rain"))) {
-    fprintf(stderr,"Error opening a window.\n");
-    exit(-1);
-  }
-  
-  reshape(WIDTH,HEIGHT);
-
-  inittextures();
-
-  glShadeModel(GL_FLAT);
-  glEnable(GL_DEPTH_TEST);
-
-  glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
-
-  glEnable(GL_FOG);
-  glFogi(GL_FOG_MODE,GL_EXP);
-  glFogfv(GL_FOG_COLOR,fogcolor);
-  glFogf(GL_FOG_DENSITY,0.1);
-#ifdef FX
-  glHint(GL_FOG_HINT,GL_NICEST);
-#endif
-
-  initparticle();
-
-  glutKeyboardFunc(key);
-  glutSpecialFunc(special);
-  glutDisplayFunc(drawrain);
-  glutIdleFunc(drawrain);
-  glutReshapeFunc(reshape);
-  glutMainLoop();
-
-  return(0);
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/ray.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/ray.c
deleted file mode 100644
index eb1d19f86..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/ray.c
+++ /dev/null
@@ -1,902 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#include <GL/glut.h>
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-static int WIDTH = 640;
-static int HEIGHT = 480;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-#define BASESIZE 7.5f
-#define SPHERE_RADIUS 0.75f
-
-#define TEX_CHECK_WIDTH 256
-#define TEX_CHECK_HEIGHT 256
-#define TEX_CHECK_SLOT_SIZE (TEX_CHECK_HEIGHT/16)
-#define TEX_CHECK_NUMSLOT (TEX_CHECK_HEIGHT/TEX_CHECK_SLOT_SIZE)
-
-#define TEX_REFLECT_WIDTH 256
-#define TEX_REFLECT_HEIGHT 256
-#define TEX_REFLECT_SLOT_SIZE (TEX_REFLECT_HEIGHT/16)
-#define TEX_REFLECT_NUMSLOT (TEX_REFLECT_HEIGHT/TEX_REFLECT_SLOT_SIZE)
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-#define EPSILON 0.0001
-
-#define clamp255(a)  ( (a)<(0.0f) ? (0.0f) : ((a)>(255.0f) ? (255.0f) : (a)) )
-
-#define fabs(x) ((x)<0.0f?-(x):(x))
-
-#define vequ(a,b) { (a)[0]=(b)[0]; (a)[1]=(b)[1]; (a)[2]=(b)[2]; }
-#define vsub(a,b,c) { (a)[0]=(b)[0]-(c)[0]; (a)[1]=(b)[1]-(c)[1]; (a)[2]=(b)[2]-(c)[2]; }
-#define	dprod(a,b) ((a)[0]*(b)[0]+(a)[1]*(b)[1]+(a)[2]*(b)[2])
-#define vnormalize(a,b) { \
-  register float m_norm; \
-  m_norm=sqrt((double)dprod((a),(a))); \
-  (a)[0] /=m_norm; \
-  (a)[1] /=m_norm; \
-  (a)[2] /=m_norm; }
-
-static GLubyte checkmap[TEX_CHECK_HEIGHT][TEX_CHECK_WIDTH][3];
-static GLuint checkid;
-static int checkmap_currentslot = 0;
-
-static GLubyte reflectmap[TEX_REFLECT_HEIGHT][TEX_REFLECT_WIDTH][3];
-static GLuint reflectid;
-static int reflectmap_currentslot = 0;
-
-static GLuint lightdlist;
-static GLuint objdlist;
-
-static float lightpos[3] = { 2.1, 2.1, 2.8 };
-static float objpos[3] = { 0.0, 0.0, 1.0 };
-
-static float sphere_pos[TEX_CHECK_HEIGHT][TEX_REFLECT_WIDTH][3];
-
-static int win = 0;
-
-static float fogcolor[4] = { 0.05, 0.05, 0.05, 1.0 };
-
-static float obs[3] = { 7.0, 0.0, 2.0 };
-static float dir[3];
-static float v = 0.0;
-static float alpha = -90.0;
-static float beta = 90.0;
-
-static int fog = 1;
-static int bfcull = 1;
-static int poutline = 0;
-static int help = 1;
-static int showcheckmap = 1;
-static int showreflectmap = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-
-static void
-calcposobs(void)
-{
-   dir[0] = sin(alpha * M_PI / 180.0);
-   dir[1] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
-   dir[2] = cos(beta * M_PI / 180.0);
-
-   if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5)
-      dir[0] = 0;
-   if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5)
-      dir[1] = 0;
-   if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
-      dir[2] = 0;
-
-   obs[0] += v * dir[0];
-   obs[1] += v * dir[1];
-   obs[2] += v * dir[2];
-}
-
-static void
-special(int k, int x, int y)
-{
-   switch (k) {
-   case GLUT_KEY_LEFT:
-      alpha -= 2.0;
-      break;
-   case GLUT_KEY_RIGHT:
-      alpha += 2.0;
-      break;
-   case GLUT_KEY_DOWN:
-      beta -= 2.0;
-      break;
-   case GLUT_KEY_UP:
-      beta += 2.0;
-      break;
-   }
-}
-
-static void
-key(unsigned char k, int x, int y)
-{
-   switch (k) {
-   case 27:
-      exit(0);
-      break;
-
-   case 's':
-      lightpos[1] -= 0.1;
-      break;
-   case 'd':
-      lightpos[1] += 0.1;
-      break;
-   case 'e':
-      lightpos[0] -= 0.1;
-      break;
-   case 'x':
-      lightpos[0] += 0.1;
-      break;
-   case 'w':
-      lightpos[2] -= 0.1;
-      break;
-   case 'r':
-      lightpos[2] += 0.1;
-      break;
-
-   case 'j':
-      objpos[1] -= 0.1;
-      break;
-   case 'k':
-      objpos[1] += 0.1;
-      break;
-   case 'i':
-      objpos[0] -= 0.1;
-      break;
-   case 'm':
-      objpos[0] += 0.1;
-      break;
-   case 'u':
-      objpos[2] -= 0.1;
-      break;
-   case 'o':
-      objpos[2] += 0.1;
-      break;
-
-   case 'a':
-      v += 0.005;
-      break;
-   case 'z':
-      v -= 0.005;
-      break;
-
-   case 'g':
-      joyactive = (!joyactive);
-      break;
-   case 'h':
-      help = (!help);
-      break;
-   case 'f':
-      fog = (!fog);
-      break;
-
-   case '1':
-      showcheckmap = (!showcheckmap);
-      break;
-   case '2':
-      showreflectmap = (!showreflectmap);
-      break;
-
-   case 'b':
-      if (bfcull) {
-	 glDisable(GL_CULL_FACE);
-	 bfcull = 0;
-      }
-      else {
-	 glEnable(GL_CULL_FACE);
-	 bfcull = 1;
-      }
-      break;
-   case 'p':
-      if (poutline) {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-	 poutline = 0;
-      }
-      else {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-	 poutline = 1;
-      }
-      break;
-#ifdef XMESA
-   case ' ':
-      XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-      fullscreen = (!fullscreen);
-      break;
-#endif
-   }
-}
-
-static void
-reshape(int w, int h)
-{
-   WIDTH = w;
-   HEIGHT = h;
-   glViewport(0, 0, w, h);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(45.0, w / (float) h, 0.8, 40.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-}
-
-static void
-printstring(void *font, char *string)
-{
-   int len, i;
-
-   len = (int) strlen(string);
-   for (i = 0; i < len; i++)
-      glutBitmapCharacter(font, string[i]);
-}
-
-static void
-printhelp(void)
-{
-   glEnable(GL_BLEND);
-   glColor4f(0.5, 0.5, 0.5, 0.5);
-   glRecti(40, 40, 600, 440);
-   glDisable(GL_BLEND);
-
-   glColor3f(0.0, 0.0, 1.0);
-   glRasterPos2i(300, 420);
-   printstring(GLUT_BITMAP_HELVETICA_18, "Help");
-
-   glRasterPos2i(60, 390);
-   printstring(GLUT_BITMAP_HELVETICA_12, "h - Toggle Help");
-   glRasterPos2i(60, 370);
-   printstring(GLUT_BITMAP_HELVETICA_12, "f - Toggle Fog");
-   glRasterPos2i(60, 350);
-   printstring(GLUT_BITMAP_HELVETICA_12, "b - Toggle Back face culling");
-   glRasterPos2i(60, 330);
-   printstring(GLUT_BITMAP_HELVETICA_12, "p - Toggle Wire frame");
-   glRasterPos2i(60, 310);
-   printstring(GLUT_BITMAP_HELVETICA_12, "Arrow Keys - Rotate");
-   glRasterPos2i(60, 290);
-   printstring(GLUT_BITMAP_HELVETICA_12, "a - Increase velocity");
-   glRasterPos2i(60, 270);
-   printstring(GLUT_BITMAP_HELVETICA_12, "z - Decrease velocity");
-
-   glRasterPos2i(60, 250);
-   if (joyavailable)
-      printstring(GLUT_BITMAP_HELVETICA_12,
-		  "j - Toggle jostick control (Joystick control available)");
-   else
-      printstring(GLUT_BITMAP_HELVETICA_12,
-		  "(No Joystick control available)");
-
-   glRasterPos2i(60, 230);
-   printstring(GLUT_BITMAP_HELVETICA_12,
-	       "To move the light source: s - left,  d - right,  e - far,  x - near,  w - down r - up");
-   glRasterPos2i(60, 210);
-   printstring(GLUT_BITMAP_HELVETICA_12,
-	       "To move the mirror sphere: j - left,  k - right,  i - far,  m - near,  u - down o - up");
-
-   glRasterPos2i(60, 190);
-   printstring(GLUT_BITMAP_HELVETICA_12,
-	       "1 - Toggle the plane texture map window");
-
-   glRasterPos2i(60, 170);
-   printstring(GLUT_BITMAP_HELVETICA_12,
-	       "2 - Toggle the sphere texture map window");
-}
-
-static GLboolean
-seelight(float p[3], float dir[3])
-{
-   float c[3], b, a, d, t, dist[3];
-
-   vsub(c, p, objpos);
-   b = -dprod(c, dir);
-   a = dprod(c, c) - SPHERE_RADIUS * SPHERE_RADIUS;
-
-   if ((d = b * b - a) < 0.0 || (b < 0.0 && a > 0.0))
-      return GL_FALSE;
-
-   d = sqrt(d);
-
-   t = b - d;
-
-   if (t < EPSILON) {
-      t = b + d;
-      if (t < EPSILON)
-	 return GL_FALSE;
-   }
-
-   vsub(dist, lightpos, p);
-   if (dprod(dist, dist) < t * t)
-      return GL_FALSE;
-
-   return GL_TRUE;
-}
-
-static int
-colorcheckmap(float ppos[3], float c[3])
-{
-   static float norm[3] = { 0.0f, 0.0f, 1.0f };
-   float ldir[3], vdir[3], h[3], dfact, kfact, r, g, b;
-   int x, y;
-
-   x = (int) ((ppos[0] + BASESIZE / 2) * (10.0f / BASESIZE));
-   if ((x < 0) || (x > 10))
-      return GL_FALSE;
-
-   y = (int) ((ppos[1] + BASESIZE / 2) * (10.0f / BASESIZE));
-   if ((y < 0) || (y > 10))
-      return GL_FALSE;
-
-   r = 255.0f;
-   if (y & 1) {
-      if (x & 1)
-	 g = 255.0f;
-      else
-	 g = 0.0f;
-   }
-   else {
-      if (x & 1)
-	 g = 0.0f;
-      else
-	 g = 255.0f;
-   }
-   b = 0.0f;
-
-   vsub(ldir, lightpos, ppos);
-   vnormalize(ldir, ldir);
-
-   if (seelight(ppos, ldir)) {
-      c[0] = r * 0.05f;
-      c[1] = g * 0.05f;
-      c[2] = b * 0.05f;
-
-      return GL_TRUE;
-   }
-
-   dfact = dprod(ldir, norm);
-   if (dfact < 0.0f)
-      dfact = 0.0f;
-
-   vsub(vdir, obs, ppos);
-   vnormalize(vdir, vdir);
-   h[0] = 0.5f * (vdir[0] + ldir[0]);
-   h[1] = 0.5f * (vdir[1] + ldir[1]);
-   h[2] = 0.5f * (vdir[2] + ldir[2]);
-   kfact = dprod(h, norm);
-   kfact = pow(kfact, 6.0) * 7.0 * 255.0;
-
-   r = r * dfact + kfact;
-   g = g * dfact + kfact;
-   b = b * dfact + kfact;
-
-   c[0] = clamp255(r);
-   c[1] = clamp255(g);
-   c[2] = clamp255(b);
-
-   return GL_TRUE;
-}
-
-static void
-updatecheckmap(int slot)
-{
-   float c[3], ppos[3];
-   int x, y;
-
-   glBindTexture(GL_TEXTURE_2D, checkid);
-
-   ppos[2] = 0.0f;
-   for (y = slot * TEX_CHECK_SLOT_SIZE; y < (slot + 1) * TEX_CHECK_SLOT_SIZE;
-	y++) {
-      ppos[1] = (y / (float) TEX_CHECK_HEIGHT) * BASESIZE - BASESIZE / 2;
-
-      for (x = 0; x < TEX_CHECK_WIDTH; x++) {
-	 ppos[0] = (x / (float) TEX_CHECK_WIDTH) * BASESIZE - BASESIZE / 2;
-
-	 colorcheckmap(ppos, c);
-	 checkmap[y][x][0] = (GLubyte) c[0];
-	 checkmap[y][x][1] = (GLubyte) c[1];
-	 checkmap[y][x][2] = (GLubyte) c[2];
-      }
-   }
-
-   glTexSubImage2D(GL_TEXTURE_2D, 0, 0, slot * TEX_CHECK_SLOT_SIZE,
-		   TEX_CHECK_WIDTH, TEX_CHECK_SLOT_SIZE, GL_RGB,
-		   GL_UNSIGNED_BYTE,
-		   &checkmap[slot * TEX_CHECK_SLOT_SIZE][0][0]);
-
-}
-
-static void
-updatereflectmap(int slot)
-{
-   float rf, r, g, b, t, dfact, kfact, rdir[3];
-   float rcol[3], ppos[3], norm[3], ldir[3], h[3], vdir[3], planepos[3];
-   int x, y;
-
-   glBindTexture(GL_TEXTURE_2D, reflectid);
-
-   for (y = slot * TEX_REFLECT_SLOT_SIZE;
-	y < (slot + 1) * TEX_REFLECT_SLOT_SIZE; y++)
-      for (x = 0; x < TEX_REFLECT_WIDTH; x++) {
-	 ppos[0] = sphere_pos[y][x][0] + objpos[0];
-	 ppos[1] = sphere_pos[y][x][1] + objpos[1];
-	 ppos[2] = sphere_pos[y][x][2] + objpos[2];
-
-	 vsub(norm, ppos, objpos);
-	 vnormalize(norm, norm);
-
-	 vsub(ldir, lightpos, ppos);
-	 vnormalize(ldir, ldir);
-	 vsub(vdir, obs, ppos);
-	 vnormalize(vdir, vdir);
-
-	 rf = 2.0f * dprod(norm, vdir);
-	 if (rf > EPSILON) {
-	    rdir[0] = rf * norm[0] - vdir[0];
-	    rdir[1] = rf * norm[1] - vdir[1];
-	    rdir[2] = rf * norm[2] - vdir[2];
-
-	    t = -objpos[2] / rdir[2];
-
-	    if (t > EPSILON) {
-	       planepos[0] = objpos[0] + t * rdir[0];
-	       planepos[1] = objpos[1] + t * rdir[1];
-	       planepos[2] = 0.0f;
-
-	       if (!colorcheckmap(planepos, rcol))
-		  rcol[0] = rcol[1] = rcol[2] = 0.0f;
-	    }
-	    else
-	       rcol[0] = rcol[1] = rcol[2] = 0.0f;
-	 }
-	 else
-	    rcol[0] = rcol[1] = rcol[2] = 0.0f;
-
-	 dfact = 0.1f * dprod(ldir, norm);
-
-	 if (dfact < 0.0f) {
-	    dfact = 0.0f;
-	    kfact = 0.0f;
-	 }
-	 else {
-	    h[0] = 0.5f * (vdir[0] + ldir[0]);
-	    h[1] = 0.5f * (vdir[1] + ldir[1]);
-	    h[2] = 0.5f * (vdir[2] + ldir[2]);
-	    kfact = dprod(h, norm);
-            kfact = pow(kfact, 4.0);
-            if (kfact < 1.0e-10)
-               kfact = 0.0;
-         }
-
-	 r = dfact + kfact;
-	 g = dfact + kfact;
-	 b = dfact + kfact;
-
-	 r *= 255.0f;
-	 g *= 255.0f;
-	 b *= 255.0f;
-
-	 r += rcol[0];
-	 g += rcol[1];
-	 b += rcol[2];
-
-	 r = clamp255(r);
-	 g = clamp255(g);
-	 b = clamp255(b);
-
-	 reflectmap[y][x][0] = (GLubyte) r;
-	 reflectmap[y][x][1] = (GLubyte) g;
-	 reflectmap[y][x][2] = (GLubyte) b;
-      }
-
-   glTexSubImage2D(GL_TEXTURE_2D, 0, 0, slot * TEX_REFLECT_SLOT_SIZE,
-		   TEX_REFLECT_WIDTH, TEX_REFLECT_SLOT_SIZE, GL_RGB,
-		   GL_UNSIGNED_BYTE,
-		   &reflectmap[slot * TEX_REFLECT_SLOT_SIZE][0][0]);
-}
-
-static void
-drawbase(void)
-{
-   glColor3f(0.0, 0.0, 0.0);
-   glBindTexture(GL_TEXTURE_2D, checkid);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-   glBegin(GL_QUADS);
-   glTexCoord2f(0.0f, 0.0f);
-   glVertex3f(-BASESIZE / 2.0f, -BASESIZE / 2.0f, 0.0f);
-
-   glTexCoord2f(1.0f, 0.0f);
-   glVertex3f(BASESIZE / 2.0f, -BASESIZE / 2.0f, 0.0f);
-
-   glTexCoord2f(1.0f, 1.0f);
-   glVertex3f(BASESIZE / 2.0f, BASESIZE / 2.0f, 0.0f);
-
-   glTexCoord2f(0.0f, 1.0f);
-   glVertex3f(-BASESIZE / 2.0f, BASESIZE / 2.0f, 0.0f);
-
-   glEnd();
-}
-
-static void
-drawobj(void)
-{
-   glColor3f(0.0, 0.0, 0.0);
-   glBindTexture(GL_TEXTURE_2D, reflectid);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-   glPushMatrix();
-   glTranslatef(objpos[0], objpos[1], objpos[2]);
-   glCallList(objdlist);
-   glPopMatrix();
-}
-
-static void
-dojoy(void)
-{
-#ifdef WIN32
-   static UINT max[2] = { 0, 0 };
-   static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2];
-   MMRESULT res;
-   JOYINFO joy;
-
-   res = joyGetPos(JOYSTICKID1, &joy);
-
-   if (res == JOYERR_NOERROR) {
-      joyavailable = 1;
-
-      if (max[0] < joy.wXpos)
-	 max[0] = joy.wXpos;
-      if (min[0] > joy.wXpos)
-	 min[0] = joy.wXpos;
-      center[0] = (max[0] + min[0]) / 2;
-
-      if (max[1] < joy.wYpos)
-	 max[1] = joy.wYpos;
-      if (min[1] > joy.wYpos)
-	 min[1] = joy.wYpos;
-      center[1] = (max[1] + min[1]) / 2;
-
-      if (joyactive) {
-	 if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0]))
-	    alpha -=
-	       2.5 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
-	 if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
-	    beta += 2.5 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
-	 if (joy.wButtons & JOY_BUTTON1)
-	    v += 0.005;
-	 if (joy.wButtons & JOY_BUTTON2)
-	    v -= 0.005;
-      }
-   }
-   else
-      joyavailable = 0;
-#endif
-}
-
-static void
-updatemaps(void)
-{
-   updatecheckmap(checkmap_currentslot);
-   checkmap_currentslot = (checkmap_currentslot + 1) % TEX_CHECK_NUMSLOT;
-
-   updatereflectmap(reflectmap_currentslot);
-   reflectmap_currentslot =
-      (reflectmap_currentslot + 1) % TEX_REFLECT_NUMSLOT;
-}
-
-static void
-draw(void)
-{
-   static char frbuf[80] = "";
-
-   dojoy();
-
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-   glEnable(GL_TEXTURE_2D);
-   glEnable(GL_DEPTH_TEST);
-   if (fog)
-      glEnable(GL_FOG);
-   else
-      glDisable(GL_FOG);
-
-   glPushMatrix();
-   calcposobs();
-
-   gluLookAt(obs[0], obs[1], obs[2],
-	     obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
-	     0.0, 0.0, 1.0);
-
-   drawbase();
-   drawobj();
-
-   glColor3f(1.0, 1.0, 1.0);
-   glDisable(GL_TEXTURE_2D);
-
-   glPushMatrix();
-   glTranslatef(lightpos[0], lightpos[1], lightpos[2]);
-   glCallList(lightdlist);
-   glPopMatrix();
-
-   glPopMatrix();
-
-   glDisable(GL_DEPTH_TEST);
-   glDisable(GL_FOG);
-
-   glMatrixMode(GL_PROJECTION);
-   glPushMatrix();
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-   glMatrixMode(GL_MODELVIEW);
-
-   glColor3f(0.0f, 0.3f, 1.0f);
-
-   if (showcheckmap) {
-      glEnable(GL_TEXTURE_2D);
-      glBindTexture(GL_TEXTURE_2D, checkid);
-      glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-      glBegin(GL_QUADS);
-      glTexCoord2f(1.0f, 0.0f);
-      glVertex2i(10, 30);
-      glTexCoord2f(1.0f, 1.0f);
-      glVertex2i(10 + 90, 30);
-      glTexCoord2f(0.0f, 1.0f);
-      glVertex2i(10 + 90, 30 + 90);
-      glTexCoord2f(0.0f, 0.0f);
-      glVertex2i(10, 30 + 90);
-      glEnd();
-
-      glDisable(GL_TEXTURE_2D);
-      glBegin(GL_LINE_LOOP);
-      glVertex2i(10, 30);
-      glVertex2i(10 + 90, 30);
-      glVertex2i(10 + 90, 30 + 90);
-      glVertex2i(10, 30 + 90);
-      glEnd();
-      glRasterPos2i(105, 65);
-      printstring(GLUT_BITMAP_HELVETICA_18, "Plane Texture Map");
-   }
-
-   if (showreflectmap) {
-      glEnable(GL_TEXTURE_2D);
-      glBindTexture(GL_TEXTURE_2D, reflectid);
-      glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-      glBegin(GL_QUADS);
-      glTexCoord2f(1.0f, 0.0f);
-      glVertex2i(540, 30);
-      glTexCoord2f(1.0f, 1.0f);
-      glVertex2i(540 + 90, 30);
-      glTexCoord2f(0.0f, 1.0f);
-      glVertex2i(540 + 90, 30 + 90);
-      glTexCoord2f(0.0f, 0.0f);
-      glVertex2i(540, 30 + 90);
-      glEnd();
-
-      glDisable(GL_TEXTURE_2D);
-      glBegin(GL_LINE_LOOP);
-      glVertex2i(540, 30);
-      glVertex2i(540 + 90, 30);
-      glVertex2i(540 + 90, 30 + 90);
-      glVertex2i(540, 30 + 90);
-      glEnd();
-      glRasterPos2i(360, 65);
-      printstring(GLUT_BITMAP_HELVETICA_18, "Sphere Texture Map");
-   }
-
-   glDisable(GL_TEXTURE_2D);
-
-   glRasterPos2i(10, 10);
-   printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
-   glRasterPos2i(360, 470);
-   printstring(GLUT_BITMAP_HELVETICA_10,
-	       "Ray V1.0 Written by David Bucciarelli (tech.hmw@plus.it)");
-
-   if (help)
-      printhelp();
-
-   glMatrixMode(GL_PROJECTION);
-   glPopMatrix();
-   glMatrixMode(GL_MODELVIEW);
-
-   updatemaps();
-
-   glutSwapBuffers();
-
-   Frames++;
-   {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      if (t - T0 >= 2000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         sprintf(frbuf, "Frame rate: %f", fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-static void
-inittextures(void)
-{
-   int y;
-
-   glGenTextures(1, &checkid);
-   glBindTexture(GL_TEXTURE_2D, checkid);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glTexImage2D(GL_TEXTURE_2D, 0, 3, TEX_CHECK_WIDTH, TEX_CHECK_HEIGHT,
-		0, GL_RGB, GL_UNSIGNED_BYTE, checkmap);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   for (y = 0; y < TEX_CHECK_NUMSLOT; y++)
-      updatecheckmap(y);
-
-
-
-   glGenTextures(1, &reflectid);
-   glBindTexture(GL_TEXTURE_2D, reflectid);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glTexImage2D(GL_TEXTURE_2D, 0, 3, TEX_REFLECT_WIDTH, TEX_REFLECT_HEIGHT,
-		0, GL_RGB, GL_UNSIGNED_BYTE, reflectmap);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   for (y = 0; y < TEX_REFLECT_NUMSLOT; y++)
-      updatereflectmap(y);
-
-
-}
-
-static void
-initspherepos(void)
-{
-   float alpha, beta, sa, ca, sb, cb;
-   int x, y;
-
-   for (y = 0; y < TEX_REFLECT_HEIGHT; y++) {
-      beta = M_PI - y * (M_PI / TEX_REFLECT_HEIGHT);
-
-      for (x = 0; x < TEX_REFLECT_WIDTH; x++) {
-	 alpha = -x * (2.0f * M_PI / TEX_REFLECT_WIDTH);
-
-	 sa = sin(alpha);
-	 ca = cos(alpha);
-
-	 sb = sin(beta);
-	 cb = cos(beta);
-
-	 sphere_pos[y][x][0] = SPHERE_RADIUS * sa * sb;
-	 sphere_pos[y][x][1] = SPHERE_RADIUS * ca * sb;
-	 sphere_pos[y][x][2] = SPHERE_RADIUS * cb;
-      }
-   }
-}
-
-static void
-initdlists(void)
-{
-   GLUquadricObj *obj;
-
-   obj = gluNewQuadric();
-
-   lightdlist = glGenLists(1);
-   glNewList(lightdlist, GL_COMPILE);
-   gluQuadricDrawStyle(obj, GLU_FILL);
-   gluQuadricNormals(obj, GLU_NONE);
-   gluQuadricTexture(obj, GL_TRUE);
-   gluSphere(obj, 0.25f, 6, 6);
-   glEndList();
-
-   objdlist = glGenLists(1);
-   glNewList(objdlist, GL_COMPILE);
-   gluQuadricDrawStyle(obj, GLU_FILL);
-   gluQuadricNormals(obj, GLU_NONE);
-   gluQuadricTexture(obj, GL_TRUE);
-   gluSphere(obj, SPHERE_RADIUS, 16, 16);
-   glEndList();
-}
-
-int
-main(int ac, char **av)
-{
-   fprintf(stderr,
-	   "Ray V1.0\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
-
-   /*
-      if(!SetPriorityClass(GetCurrentProcess(),REALTIME_PRIORITY_CLASS)) {
-      fprintf(stderr,"Error setting the process class.\n");
-      return 0;
-      }
-
-      if(!SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_TIME_CRITICAL)) {
-      fprintf(stderr,"Error setting the process priority.\n");
-      return 0;
-      }
-    */
-
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WIDTH, HEIGHT);
-   glutInit(&ac, av);
-
-   glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
-
-   if (!(win = glutCreateWindow("Ray"))) {
-      fprintf(stderr, "Error, couldn't open window\n");
-      return -1;
-   }
-
-   reshape(WIDTH, HEIGHT);
-
-   glShadeModel(GL_FLAT);
-   glEnable(GL_DEPTH_TEST);
-   glDepthFunc(GL_LEQUAL);
-   glEnable(GL_CULL_FACE);
-   glEnable(GL_TEXTURE_2D);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-   glEnable(GL_FOG);
-   glFogi(GL_FOG_MODE, GL_EXP2);
-   glFogfv(GL_FOG_COLOR, fogcolor);
-
-   glFogf(GL_FOG_DENSITY, 0.01);
-#ifdef FX
-   glHint(GL_FOG_HINT, GL_NICEST);
-#endif
-
-   calcposobs();
-
-   initspherepos();
-
-   inittextures();
-   initdlists();
-
-   glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]);
-
-   glutReshapeFunc(reshape);
-   glutDisplayFunc(draw);
-   glutKeyboardFunc(key);
-   glutSpecialFunc(special);
-   glutIdleFunc(draw);
-
-   glutMainLoop();
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/readpix.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/readpix.c
deleted file mode 100644
index 75ba45c1e..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/readpix.c
+++ /dev/null
@@ -1,344 +0,0 @@
-
-/*
- * glReadPixels and glCopyPixels test
- * 
- * Brian Paul   March 1, 2000  This file is in the public domain.
- */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <GL/glut.h>
-
-#include "readtex.h"
-
-#define IMAGE_FILE "../images/girl.rgb"
-
-static int ImgWidth, ImgHeight;
-static GLenum ImgFormat;
-static GLubyte *Image = NULL;
-
-static int APosX, APosY;  /* simple drawpixels */
-static int BPosX, BPosY;  /* read/draw pixels */
-static int CPosX, CPosY;  /* copypixels */
-
-static GLboolean DrawFront = GL_FALSE;
-static GLboolean ScaleAndBias = GL_FALSE;
-static GLboolean Benchmark = GL_FALSE;
-static GLubyte *TempImage = NULL;
-
-#if 0
-#define ReadFormat ImgFormat
-#define ReadType GL_UNSIGNED_BYTE
-#endif
-#if 1
-static GLenum ReadFormat = GL_RGBA;
-static GLenum ReadType = GL_UNSIGNED_BYTE;
-#endif
-#if 0
-static GLenum ReadFormat = GL_RGB;
-static GLenum ReadType = GL_UNSIGNED_BYTE;
-#endif
-#if 0
-static GLenum ReadFormat = GL_RGB;
-static GLenum ReadType = GL_UNSIGNED_SHORT_5_6_5;
-#endif
-#if 0
-static GLenum ReadFormat = GL_RGBA;
-static GLenum ReadType = GL_UNSIGNED_SHORT_1_5_5_5_REV;
-#endif
-#if 0
-static GLenum ReadFormat = GL_BGRA;
-static GLenum ReadType = GL_UNSIGNED_SHORT_5_5_5_1;
-#endif
-#if 0
-static GLenum ReadFormat = GL_BGRA;
-static GLenum ReadType = GL_UNSIGNED_SHORT_4_4_4_4_REV;
-#endif
-
-
-static void
-Reset( void )
-{
-   APosX = 5;     APosY = 20;
-   BPosX = APosX + ImgWidth + 5;   BPosY = 20;
-   CPosX = BPosX + ImgWidth + 5;   CPosY = 20;
-}
-
-
-static void
-PrintString(const char *s)
-{
-   while (*s) {
-      glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
-      s++;
-   }
-}
-
-
-static void
-SetupPixelTransfer(GLboolean invert)
-{
-   if (invert) {
-      glPixelTransferf(GL_RED_SCALE, -1.0);
-      glPixelTransferf(GL_RED_BIAS, 1.0);
-      glPixelTransferf(GL_GREEN_SCALE, -1.0);
-      glPixelTransferf(GL_GREEN_BIAS, 1.0);
-      glPixelTransferf(GL_BLUE_SCALE, -1.0);
-      glPixelTransferf(GL_BLUE_BIAS, 1.0);
-   }
-   else {
-      glPixelTransferf(GL_RED_SCALE, 1.0);
-      glPixelTransferf(GL_RED_BIAS, 0.0);
-      glPixelTransferf(GL_GREEN_SCALE, 1.0);
-      glPixelTransferf(GL_GREEN_BIAS, 0.0);
-      glPixelTransferf(GL_BLUE_SCALE, 1.0);
-      glPixelTransferf(GL_BLUE_BIAS, 0.0);
-   }
-}
-
-
-/**
- * Exercise Pixel Pack parameters by reading the image in four pieces.
- */
-static void
-ComplexReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
-                  GLenum format, GLenum type, GLvoid *pixels)
-{
-   const GLsizei width0 = width / 2;
-   const GLsizei width1 = width - width0;
-   const GLsizei height0 = height / 2;
-   const GLsizei height1 = height - height0;
-
-   glPixelStorei(GL_PACK_ROW_LENGTH, width);
-
-   /* lower-left quadrant */
-   glReadPixels(x, y, width0, height0, format, type, pixels);
-
-   /* lower-right quadrant */
-   glPixelStorei(GL_PACK_SKIP_PIXELS, width0);
-   glReadPixels(x + width0, y, width1, height0, format, type, pixels);
-
-   /* upper-left quadrant */
-   glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
-   glPixelStorei(GL_PACK_SKIP_ROWS, height0);
-   glReadPixels(x, y + height0, width0, height1, format, type, pixels);
-
-   /* upper-right quadrant */
-   glPixelStorei(GL_PACK_SKIP_PIXELS, width0);
-   glPixelStorei(GL_PACK_SKIP_ROWS, height0);
-   glReadPixels(x + width0, y + height0, width1, height1, format, type, pixels);
-
-   /* restore defaults */
-   glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
-   glPixelStorei(GL_PACK_SKIP_ROWS, 0);
-   glPixelStorei(GL_PACK_ROW_LENGTH, ImgWidth);
-}
-
-
-
-static void
-Display( void )
-{
-   glClearColor(.3, .3, .3, 1);
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   glRasterPos2i(5, ImgHeight+25);
-   PrintString("f = toggle front/back  s = toggle scale/bias  b = benchmark");
-
-   /* draw original image */
-   glRasterPos2i(APosX, 5);
-   PrintString("Original");
-   glRasterPos2i(APosX, APosY);
-   glEnable(GL_DITHER);
-   SetupPixelTransfer(GL_FALSE);
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glDrawPixels(ImgWidth, ImgHeight, ImgFormat, GL_UNSIGNED_BYTE, Image);
-
-   /* might try alignment=4 here for testing */
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glPixelStorei(GL_PACK_ALIGNMENT, 1);
-
-   /* do readpixels, drawpixels */
-   glRasterPos2i(BPosX, 5);
-   PrintString("Read/DrawPixels");
-   SetupPixelTransfer(ScaleAndBias);
-   if (Benchmark) {
-      GLint reads = 0;
-      GLint endTime;
-      GLint startTime = glutGet(GLUT_ELAPSED_TIME);
-      GLdouble seconds, pixelsPerSecond;
-      printf("Benchmarking...\n");
-      do {
-         glReadPixels(APosX, APosY, ImgWidth, ImgHeight,
-                      ReadFormat, ReadType, TempImage);
-         reads++;
-         endTime = glutGet(GLUT_ELAPSED_TIME);
-      } while (endTime - startTime < 4000);   /* 4 seconds */
-      seconds = (double) (endTime - startTime) / 1000.0;
-      pixelsPerSecond = reads * ImgWidth * ImgHeight / seconds;
-      printf("Result:  %d reads in %f seconds = %f pixels/sec\n",
-             reads, seconds, pixelsPerSecond);
-      Benchmark = GL_FALSE;
-   }
-   else {
-      /* clear the temporary image to white (helpful for debugging */
-      memset(TempImage, 255, ImgWidth * ImgHeight * 4);
-#if 1
-      glReadPixels(APosX, APosY, ImgWidth, ImgHeight,
-                   ReadFormat, ReadType, TempImage);
-      (void) ComplexReadPixels;
-#else
-      /* you might use this when debugging */
-      ComplexReadPixels(APosX, APosY, ImgWidth, ImgHeight,
-                        ReadFormat, ReadType, TempImage);
-#endif
-   }
-   glRasterPos2i(BPosX, BPosY);
-   glDisable(GL_DITHER);
-   SetupPixelTransfer(GL_FALSE);
-   glDrawPixels(ImgWidth, ImgHeight, ReadFormat, ReadType, TempImage);
-
-   /* do copypixels */
-   glRasterPos2i(CPosX, 5);
-   PrintString("CopyPixels");
-   glRasterPos2i(CPosX, CPosY);
-   glDisable(GL_DITHER);
-   SetupPixelTransfer(ScaleAndBias);
-   glCopyPixels(APosX, APosY, ImgWidth, ImgHeight, GL_COLOR);
-
-   if (!DrawFront)
-      glutSwapBuffers();
-   else
-      glFinish();
-}
-
-
-static void
-Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho( 0.0, width, 0.0, height, -1.0, 1.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-}
-
-
-static void
-Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 'b':
-         Benchmark = GL_TRUE;
-         break;
-      case 's':
-         ScaleAndBias = !ScaleAndBias;
-         break;
-      case 'f':
-         DrawFront = !DrawFront;
-         if (DrawFront) {
-            glDrawBuffer(GL_FRONT);
-            glReadBuffer(GL_FRONT);
-         }
-         else {
-            glDrawBuffer(GL_BACK);
-            glReadBuffer(GL_BACK);
-         }
-         printf("glDrawBuffer(%s)\n", DrawFront ? "GL_FRONT" : "GL_BACK");
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void
-Init( GLboolean ciMode )
-{
-   GLboolean have_read_format = GL_FALSE;
-
-   printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
-   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
-
-   Image = LoadRGBImage( IMAGE_FILE, &ImgWidth, &ImgHeight, &ImgFormat );
-   if (!Image) {
-      printf("Couldn't read %s\n", IMAGE_FILE);
-      exit(0);
-   }
-
-   if (ciMode) {
-      /* Convert RGB image to grayscale */
-      GLubyte *indexImage = (GLubyte *) malloc( ImgWidth * ImgHeight );
-      GLint i;
-      for (i=0; i<ImgWidth*ImgHeight; i++) {
-         int gray = Image[i*3] + Image[i*3+1] + Image[i*3+2];
-         indexImage[i] = gray / 3;
-      }
-      free(Image);
-      Image = indexImage;
-      ImgFormat = GL_COLOR_INDEX;
-
-      for (i=0;i<255;i++) {
-         float g = i / 255.0;
-         glutSetColor(i, g, g, g);
-      }
-   }
-
-#ifdef GL_OES_read_format
-   if ( glutExtensionSupported( "GL_OES_read_format" ) ) {
-      glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE_OES,   (GLint *) &ReadType);
-      glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, (GLint *) &ReadFormat);
-
-      have_read_format = GL_TRUE;
-   }
-#endif
-
-   printf( "GL_OES_read_format %ssupported.  "
-	   "Using type / format = 0x%04x / 0x%04x\n",
-	   (have_read_format) ? "" : "not ",
-	   ReadType, ReadFormat );
-
-   printf("Loaded %d by %d image\n", ImgWidth, ImgHeight );
-
-   glPixelStorei(GL_UNPACK_ROW_LENGTH, ImgWidth);
-   glPixelStorei(GL_PACK_ROW_LENGTH, ImgWidth);
-
-   Reset();
-
-   /* allocate an extra 1KB in case we're tinkering with pack alignment */
-   TempImage = (GLubyte *) malloc(ImgWidth * ImgHeight * 4 * sizeof(GLubyte)
-                                  + 1000);
-   assert(TempImage);
-}
-
-
-int
-main( int argc, char *argv[] )
-{
-   GLboolean ciMode = GL_FALSE;
-   if (argc > 1 && strcmp(argv[1], "-ci")==0) {
-      ciMode = GL_TRUE;
-   }
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 750, 250 );
-   if (ciMode)
-      glutInitDisplayMode( GLUT_INDEX | GLUT_DOUBLE );
-   else
-      glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-   glutCreateWindow(argv[0]);
-   Init(ciMode);
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutDisplayFunc( Display );
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/reflect.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/reflect.c
deleted file mode 100644
index bf6d91aaa..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/reflect.c
+++ /dev/null
@@ -1,404 +0,0 @@
-
-/*
- * Demo of a reflective, texture-mapped surface with OpenGL.
- * Brian Paul   August 14, 1995   This file is in the public domain.
- *
- * Hardware texture mapping is highly recommended!
- *
- * The basic steps are:
- *    1. Render the reflective object (a polygon) from the normal viewpoint,
- *       setting the stencil planes = 1.
- *    2. Render the scene from a special viewpoint:  the viewpoint which
- *       is on the opposite side of the reflective plane.  Only draw where
- *       stencil = 1.  This draws the objects in the reflective surface.
- *    3. Render the scene from the original viewpoint.  This draws the
- *       objects in the normal fashion.  Use blending when drawing
- *       the reflective, textured surface.
- *
- * This is a very crude demo.  It could be much better.
- */
- 
-/*
- * Authors:
- *   Brian Paul
- *   Dirk Reiners (reiners@igd.fhg.de) made some modifications to this code.
- *   Mark Kilgard (April 1997)
- *   Brian Paul (April 2000 - added keyboard d/s options)
- */
-
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "GL/glut.h"
-#include "showbuffer.h"
-#include "readtex.h"
-
-
-#define DEG2RAD (3.14159/180.0)
-
-#define TABLE_TEXTURE "../images/tile.rgb"
-
-static GLint ImgWidth, ImgHeight;
-static GLenum ImgFormat;
-static GLubyte *Image = NULL;
-
-#define MAX_OBJECTS 2
-static GLint table_list;
-static GLint objects_list[MAX_OBJECTS];
-
-static GLfloat xrot, yrot;
-static GLfloat spin;
-
-static GLint Width = 400, Height = 300;
-static GLenum ShowBuffer = GL_NONE;
-static GLboolean Anim = GL_TRUE;
-
-/* performance info */
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-
-static void make_table( void )
-{
-   static GLfloat table_mat[] = { 1.0, 1.0, 1.0, 0.6 };
-   static GLfloat gray[] = { 0.4, 0.4, 0.4, 1.0 };
-
-   table_list = glGenLists(1);
-   glNewList( table_list, GL_COMPILE );
-
-   /* load table's texture */
-   glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, table_mat );
-/*   glMaterialfv( GL_FRONT, GL_EMISSION, gray );*/
-   glMaterialfv( GL_FRONT, GL_DIFFUSE, table_mat );
-   glMaterialfv( GL_FRONT, GL_AMBIENT, gray );
-   
-   /* draw textured square for the table */
-   glPushMatrix();
-   glScalef( 4.0, 4.0, 4.0 );
-   glBegin( GL_POLYGON );
-   glNormal3f( 0.0, 1.0, 0.0 );
-   glTexCoord2f( 0.0, 0.0 );   glVertex3f( -1.0, 0.0,  1.0 );
-   glTexCoord2f( 1.0, 0.0 );   glVertex3f(  1.0, 0.0,  1.0 );
-   glTexCoord2f( 1.0, 1.0 );   glVertex3f(  1.0, 0.0, -1.0 );
-   glTexCoord2f( 0.0, 1.0 );   glVertex3f( -1.0, 0.0, -1.0 );
-   glEnd();
-   glPopMatrix();
-
-   glDisable( GL_TEXTURE_2D );
-
-   glEndList();
-}
-
-
-static void make_objects( void )
-{
-   GLUquadricObj *q;
-
-   static GLfloat cyan[] = { 0.0, 1.0, 1.0, 1.0 };
-   static GLfloat green[] = { 0.2, 1.0, 0.2, 1.0 };
-   static GLfloat black[] = { 0.0, 0.0, 0.0, 0.0 };
-
-   q = gluNewQuadric();
-   gluQuadricDrawStyle( q, GLU_FILL );
-   gluQuadricNormals( q, GLU_SMOOTH );
-
-   objects_list[0] = glGenLists(1);
-   glNewList( objects_list[0], GL_COMPILE );
-   glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, cyan );
-   glMaterialfv( GL_FRONT, GL_EMISSION, black );
-   gluCylinder( q, 0.5, 0.5,  1.0, 15, 1 );
-   glEndList();
-
-   objects_list[1] = glGenLists(1);
-   glNewList( objects_list[1], GL_COMPILE );
-   glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green );
-   glMaterialfv( GL_FRONT, GL_EMISSION, black );
-   gluCylinder( q, 1.5, 0.0,  2.5, 15, 1 );
-   glEndList();
-}
-
-
-static void init( void )
-{
-   make_table();
-   make_objects();
-
-   Image = LoadRGBImage( TABLE_TEXTURE, &ImgWidth, &ImgHeight, &ImgFormat );
-   if (!Image) {
-      printf("Couldn't read %s\n", TABLE_TEXTURE);
-      exit(0);
-   }
-
-   gluBuild2DMipmaps(GL_TEXTURE_2D, 3, ImgWidth, ImgHeight,
-                     ImgFormat, GL_UNSIGNED_BYTE, Image);
-
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
-
-   xrot = 30.0;
-   yrot = 50.0;
-   spin = 0.0;
-
-   glShadeModel( GL_FLAT );
-   
-   glEnable( GL_LIGHT0 );
-   glEnable( GL_LIGHTING );
-
-   glClearColor( 0.5, 0.5, 0.9, 0.0 );
-
-   glEnable( GL_NORMALIZE );
-}
-
-
-
-static void reshape(int w, int h)
-{
-   GLfloat yAspect = 2.5;
-   GLfloat xAspect = yAspect * (float) w / (float) h;
-   Width = w;
-   Height = h;
-   glViewport(0, 0, w, h);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glFrustum( -xAspect, xAspect, -yAspect, yAspect, 10.0, 30.0 );
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-}
-
-
-
-static void draw_objects( GLfloat eyex, GLfloat eyey, GLfloat eyez )
-{
-   (void) eyex;
-   (void) eyey;
-   (void) eyez;
-#ifndef USE_ZBUFFER
-   if (eyex<0.5) {
-#endif
-	   glPushMatrix();
-	   glTranslatef( 1.0, 1.5, 0.0 );
-	   glRotatef( spin, 1.0, 0.5, 0.0 );
-	   glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
-	   glCallList( objects_list[0] );
-	   glPopMatrix();
-	
-	   glPushMatrix();
-	   glTranslatef( -1.0, 0.85+3.0*fabs( cos(0.01*spin) ), 0.0 );
-	   glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
-	   glRotatef( spin, 1.0, 0.5, 0.0 );
-	   glScalef( 0.5, 0.5, 0.5 );
-	   glCallList( objects_list[1] );
-	   glPopMatrix();
-#ifndef USE_ZBUFFER
-   }
-   else {	
-	   glPushMatrix();
-	   glTranslatef( -1.0, 0.85+3.0*fabs( cos(0.01*spin) ), 0.0 );
-	   glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
-	   glRotatef( spin, 1.0, 0.5, 0.0 );
-	   glScalef( 0.5, 0.5, 0.5 );
-	   glCallList( objects_list[1] );
-	   glPopMatrix();
-
-	   glPushMatrix();
-	   glTranslatef( 1.0, 1.5, 0.0 );
-	   glRotatef( spin, 1.0, 0.5, 0.0 );
-	   glRotatef( 0.5*spin, 0.0, 0.5, 1.0 );
-	   glCallList( objects_list[0] );
-	   glPopMatrix();
-   }
-#endif
-}
-
-
-
-static void draw_table( void )
-{
-   glCallList( table_list );
-}
-
-
-
-static void draw_scene( void )
-{
-   static GLfloat light_pos[] = { 0.0, 20.0, 0.0, 1.0 };
-   GLfloat dist = 20.0;
-   GLfloat eyex, eyey, eyez;
-
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-
-
-   eyex = dist * cos(yrot*DEG2RAD) * cos(xrot*DEG2RAD);
-   eyez = dist * sin(yrot*DEG2RAD) * cos(xrot*DEG2RAD);
-   eyey = dist * sin(xrot*DEG2RAD);
-
-   /* view from top */
-   glPushMatrix();
-   gluLookAt( eyex, eyey, eyez, 0.0, 0.0, 0.0,  0.0, 1.0, 0.0 );
-
-   glLightfv( GL_LIGHT0, GL_POSITION, light_pos );
- 
-   /* draw table into stencil planes */
-   glDisable( GL_DEPTH_TEST );
-   glEnable( GL_STENCIL_TEST );
-   glStencilFunc( GL_ALWAYS, 1, 0xffffffff );
-   glStencilOp( GL_REPLACE, GL_REPLACE, GL_REPLACE );
-   glColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
-   draw_table();
-   glColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
-
-   glEnable( GL_DEPTH_TEST );
-
-   /* render view from below (reflected viewport) */
-   /* only draw where stencil==1 */
-   if (eyey>0.0) {
-      glPushMatrix();
- 
-      glStencilFunc( GL_EQUAL, 1, 0xffffffff );  /* draw if ==1 */
-      glStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
-      glScalef( 1.0, -1.0, 1.0 );
-
-      /* Reposition light in reflected space. */
-      glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
-
-      draw_objects(eyex, eyey, eyez);
-      glPopMatrix();
-
-      /* Restore light's original unreflected position. */
-      glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
-   }
-
-   glDisable( GL_STENCIL_TEST );
-
-   glEnable( GL_BLEND );
-   glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
-
-   glEnable( GL_TEXTURE_2D );
-   draw_table();
-   glDisable( GL_TEXTURE_2D );
-   glDisable( GL_BLEND );
-
-   /* view from top */
-   glPushMatrix();
-
-   draw_objects(eyex, eyey, eyez);
-
-   glPopMatrix();
-
-   glPopMatrix();
-
-   if (ShowBuffer == GL_DEPTH) {
-      ShowDepthBuffer(Width, Height, 1.0, 0.0);
-   }
-   else if (ShowBuffer == GL_STENCIL) {
-      ShowStencilBuffer(Width, Height, 255.0, 0.0);
-   }
-   else if (ShowBuffer == GL_ALPHA) {
-      ShowAlphaBuffer(Width, Height);
-   }
-
-   glutSwapBuffers();
-
-   {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      Frames++;
-      if (t - T0 >= 5000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-
-static void idle( void )
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-   spin += 60.0 * dt;
-   yrot += 90.0 * dt;
-   glutPostRedisplay();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   if (key == 'd') {
-      ShowBuffer = GL_DEPTH;
-   }
-   else if (key == 's') {
-      ShowBuffer = GL_STENCIL;
-   }
-   else if (key == 'a') {
-      ShowBuffer = GL_ALPHA;
-   }
-   else if (key == ' ') {
-      Anim = !Anim;
-      if (Anim)
-         glutIdleFunc(idle);
-      else
-         glutIdleFunc(NULL);
-   }
-   else if (key==27) {
-      exit(0);
-   }
-   else {
-      ShowBuffer = GL_NONE;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         xrot += 3.0;
-         if ( xrot > 85 )
-            xrot = 85;
-         break;
-      case GLUT_KEY_DOWN:
-         xrot -= 3.0;
-         if ( xrot < 5 )
-            xrot = 5;
-         break;
-      case GLUT_KEY_LEFT:
-         yrot += 3.0;
-         break;
-      case GLUT_KEY_RIGHT:
-         yrot -= 3.0;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit(&argc, argv);
-   glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH | GLUT_STENCIL | GLUT_ALPHA);
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( Width, Height );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc(reshape);
-   glutDisplayFunc(draw_scene);
-   glutKeyboardFunc(Key);
-   glutSpecialFunc(SpecialKey);
-   glutIdleFunc(idle);
-   init();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/renormal.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/renormal.c
deleted file mode 100644
index 9e5da9548..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/renormal.c
+++ /dev/null
@@ -1,139 +0,0 @@
-
-/*
- * Test GL_EXT_rescale_normal extension
- * Brian Paul  January 1998   This program is in the public domain.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glut.h>
-
-
-static GLfloat Phi = 0.0;
-
-
-static void Idle( void )
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-   Phi += 3.0 * dt;
-   glutPostRedisplay();
-}
-
-
-static void Display( void )
-{
-   GLfloat scale = 0.6 + 0.5 * sin(Phi);
-   glClear( GL_COLOR_BUFFER_BIT );
-   glPushMatrix();
-   glScalef(scale, scale, scale);
-   glutSolidSphere(2.0, 20, 20);
-   glPopMatrix();
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -15.0 );
-}
-
-
-
-static void Init( void )
-{
-   static GLfloat mat[4] = { 0.8, 0.8, 0.0, 1.0 };
-   static GLfloat pos[4] = { -1.0, 1.0, 1.0, 0.0 };
-
-   /* setup lighting, etc */
-   glEnable(GL_LIGHTING);
-   glEnable(GL_LIGHT0);
-   glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, mat);
-   glLightfv(GL_LIGHT0, GL_POSITION, pos);
-
-   glEnable(GL_CULL_FACE);
-
-   glDisable(GL_RESCALE_NORMAL_EXT);
-   glDisable(GL_NORMALIZE);
-}
-
-
-#define UNSCALED  1
-#define NORMALIZE 2
-#define RESCALE   3
-#define QUIT      4
-
-
-static void ModeMenu(int entry)
-{
-   if (entry==UNSCALED) {
-      glDisable(GL_RESCALE_NORMAL_EXT);
-      glDisable(GL_NORMALIZE);
-   }
-   else if (entry==NORMALIZE) {
-      glEnable(GL_NORMALIZE);
-      glDisable(GL_RESCALE_NORMAL_EXT);
-   }
-   else if (entry==RESCALE) {
-      glDisable(GL_NORMALIZE);
-      glEnable(GL_RESCALE_NORMAL_EXT);
-   }
-   else if (entry==QUIT) {
-      exit(0);
-   }
-   glutPostRedisplay();
-}
-
-static void
-key(unsigned char k, int x, int y)
-{
-  (void) x;
-  (void) y;
-  switch (k) {
-  case 27:  /* Escape */
-    exit(0);
-    break;
-  default:
-    return;
-  }
-  glutPostRedisplay();
-}
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize( 400, 400 );
-
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-
-   glutCreateWindow(argv[0]);
-
-   Init();
-
-   glutIdleFunc( Idle );
-   glutReshapeFunc( Reshape );
-   glutDisplayFunc( Display );
-   glutKeyboardFunc(key);
-
-   glutCreateMenu(ModeMenu);
-   glutAddMenuEntry("Unscaled", UNSCALED);
-   glutAddMenuEntry("Normalize", NORMALIZE);
-   glutAddMenuEntry("Rescale EXT", RESCALE);
-   glutAddMenuEntry("Quit", QUIT);
-   glutAttachMenu(GLUT_RIGHT_BUTTON);
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/shadowtex.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/shadowtex.c
deleted file mode 100644
index e918751a7..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/shadowtex.c
+++ /dev/null
@@ -1,600 +0,0 @@
-/*
- * Shadow demo using the GL_ARB_depth_texture, GL_ARB_shadow and
- * GL_ARB_shadow_ambient extensions (or the old SGIX extensions).
- *
- * Brian Paul
- * 19 Feb 2001
- *
- * Added GL_EXT_shadow_funcs support on 23 March 2002
- *
- * Copyright (C) 1999-2001  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.
- */
-
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glut.h>
-#include "showbuffer.h"
-
-#if 0 /* change to 1 if you want to use the old SGIX extensions */
-#undef GL_ARB_depth_texture
-#undef GL_ARB_shadow
-#undef GL_ARB_shadow_ambient
-#endif
-
-
-#define DEG_TO_RAD (3.14159 / 180.0)
-
-static GLint WindowWidth = 450, WindowHeight = 300;
-static GLfloat Xrot = 15, Yrot = 0, Zrot = 0;
-
-static GLfloat Red[4] = {1, 0, 0, 1};
-static GLfloat Green[4] = {0, 1, 0, 1};
-static GLfloat Blue[4] = {0, 0, 1, 1};
-static GLfloat Yellow[4] = {1, 1, 0, 1};
-
-static GLfloat LightDist = 10;
-static GLfloat LightLatitude = 45.0;
-static GLfloat LightLongitude = 45.0;
-static GLfloat LightPos[4];
-static GLfloat SpotDir[3];
-static GLfloat SpotAngle = 40.0 * DEG_TO_RAD;
-static GLfloat ShadowNear = 4.0, ShadowFar = 24.0;
-static GLint ShadowTexWidth = 256, ShadowTexHeight = 256;
-
-static GLboolean LinearFilter = GL_FALSE;
-
-static GLfloat Bias = -0.06;
-
-static GLboolean Anim = GL_TRUE;
-
-static GLboolean HaveEXTshadowFuncs = GL_FALSE;
-static GLint Operator = 0;
-static const GLenum OperatorFunc[8] = {
-   GL_LEQUAL, GL_LESS, GL_GEQUAL, GL_GREATER,
-   GL_EQUAL, GL_NOTEQUAL, GL_ALWAYS, GL_NEVER };
-static const char *OperatorName[8] = {
-   "GL_LEQUAL", "GL_LESS", "GL_GEQUAL", "GL_GREATER",
-   "GL_EQUAL", "GL_NOTEQUAL", "GL_ALWAYS", "GL_NEVER" };
-
-
-static GLuint DisplayMode;
-#define SHOW_NORMAL         0
-#define SHOW_DEPTH_IMAGE    1
-#define SHOW_DEPTH_MAPPING  2
-#define SHOW_DISTANCE       3
-
-
-
-static void
-DrawScene(void)
-{
-   GLfloat k = 6;
-   /* sphere */
-   glPushMatrix();
-   glTranslatef(1.6, 2.2, 2.7);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, Green);
-   glColor4fv(Green);
-   glutSolidSphere(1.5, 15, 15);
-   glPopMatrix();
-   /* dodecahedron */
-   glPushMatrix();
-   glTranslatef(-2.0, 1.2, 2.1);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, Red);
-   glColor4fv(Red);
-   glutSolidDodecahedron();
-   glPopMatrix();
-   /* icosahedron */
-   glPushMatrix();
-   glTranslatef(-0.6, 1.3, -0.5);
-   glScalef(1.5, 1.5, 1.5);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, Yellow);
-   glColor4fv(Red);
-   glutSolidIcosahedron();
-   glPopMatrix();
-   /* a plane */
-   glPushMatrix();
-   glTranslatef(0, -1.1, 0);
-   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, Blue);
-   glColor4fv(Blue);
-   glNormal3f(0, 1, 0);
-   glBegin(GL_POLYGON);
-   glVertex3f(-k, 0, -k);
-   glVertex3f( k, 0, -k);
-   glVertex3f( k, 0,  k);
-   glVertex3f(-k, 0,  k);
-   glEnd();
-   glPopMatrix();
-}
-
-
-/*
- * Load the GL_TEXTURE matrix with the projection from the light
- * source's point of view.
- */
-static void
-MakeShadowMatrix(const GLfloat lightPos[4], const GLfloat spotDir[3],
-                 GLfloat spotAngle, GLfloat shadowNear, GLfloat shadowFar)
-{
-   GLfloat d;
-   
-   glMatrixMode(GL_TEXTURE);
-   glLoadIdentity();
-   glTranslatef(0.5, 0.5, 0.5 + Bias);
-   glScalef(0.5, 0.5, 0.5);
-   d = shadowNear * tan(spotAngle);
-   glFrustum(-d, d, -d, d, shadowNear, shadowFar);
-   gluLookAt(lightPos[0], lightPos[1], lightPos[2],
-             lightPos[0] + spotDir[0],
-             lightPos[1] + spotDir[1],
-             lightPos[2] + spotDir[2],
-             0, 1, 0);
-   glMatrixMode(GL_MODELVIEW);
-}
-
-
-static void
-EnableIdentityTexgen(void)
-{
-   /* texgen so that texcoord = vertex coord */
-   static GLfloat sPlane[4] = { 1, 0, 0, 0 };
-   static GLfloat tPlane[4] = { 0, 1, 0, 0 };
-   static GLfloat rPlane[4] = { 0, 0, 1, 0 };
-   static GLfloat qPlane[4] = { 0, 0, 0, 1 };
-
-   glTexGenfv(GL_S, GL_EYE_PLANE, sPlane);
-   glTexGenfv(GL_T, GL_EYE_PLANE, tPlane);
-   glTexGenfv(GL_R, GL_EYE_PLANE, rPlane);
-   glTexGenfv(GL_Q, GL_EYE_PLANE, qPlane);
-   glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-   glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-   glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-   glTexGeni(GL_Q, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-
-   glEnable(GL_TEXTURE_GEN_S);
-   glEnable(GL_TEXTURE_GEN_T);
-   glEnable(GL_TEXTURE_GEN_R);
-   glEnable(GL_TEXTURE_GEN_Q);
-}
-
-
-/*
- * Setup 1-D texgen so that the distance from the light source, between
- * the near and far planes maps to s=0 and s=1.  When we draw the scene,
- * the grayness will indicate the fragment's distance from the light
- * source.
- */
-static void
-EnableDistanceTexgen(const GLfloat lightPos[4], const GLfloat lightDir[3],
-                     GLfloat lightNear, GLfloat lightFar)
-{
-   GLfloat m, d;
-   GLfloat sPlane[4];
-   GLfloat nearPoint[3];
-
-   m = sqrt(lightDir[0] * lightDir[0] +
-            lightDir[1] * lightDir[1] +
-            lightDir[2] * lightDir[2]);
-
-   d = lightFar - lightNear;
-
-   /* nearPoint = point on light direction vector which intersects the
-    * near plane of the light frustum.
-    */
-   nearPoint[0] = LightPos[0] + lightDir[0] / m * lightNear;
-   nearPoint[1] = LightPos[1] + lightDir[1] / m * lightNear;
-   nearPoint[2] = LightPos[2] + lightDir[2] / m * lightNear;
-
-   sPlane[0] = lightDir[0] / d / m;
-   sPlane[1] = lightDir[1] / d / m;
-   sPlane[2] = lightDir[2] / d / m;
-   sPlane[3] = -(sPlane[0] * nearPoint[0]
-               + sPlane[1] * nearPoint[1]
-               + sPlane[2] * nearPoint[2]);
-
-   glTexGenfv(GL_S, GL_EYE_PLANE, sPlane);
-   glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-   glEnable(GL_TEXTURE_GEN_S);
-}
-
-
-static void
-DisableTexgen(void)
-{
-   glDisable(GL_TEXTURE_GEN_S);
-   glDisable(GL_TEXTURE_GEN_T);
-   glDisable(GL_TEXTURE_GEN_R);
-   glDisable(GL_TEXTURE_GEN_Q);
-}
-
-
-static void
-ComputeLightPos(GLfloat dist, GLfloat latitude, GLfloat longitude,
-                GLfloat pos[4], GLfloat dir[3])
-{
-
-   pos[0] = dist * sin(longitude * DEG_TO_RAD);
-   pos[1] = dist * sin(latitude * DEG_TO_RAD);
-   pos[2] = dist * cos(latitude * DEG_TO_RAD) * cos(longitude * DEG_TO_RAD);
-   pos[3] = 1;
-   dir[0] = -pos[0];
-   dir[1] = -pos[1];
-   dir[2] = -pos[2];
-}
-
-
-static void
-Display(void)
-{
-   GLfloat ar = (GLfloat) WindowWidth / (GLfloat) WindowHeight;
-   GLfloat d;
-   GLenum error;
-
-   ComputeLightPos(LightDist, LightLatitude, LightLongitude,
-                   LightPos, SpotDir);
-   /*
-    * Step 1: render scene from point of view of the light source
-    */
-   /* compute frustum to enclose spot light cone */
-   d = ShadowNear * tan(SpotAngle);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glFrustum(-d, d, -d, d, ShadowNear, ShadowFar);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   gluLookAt(LightPos[0], LightPos[1], LightPos[2], /* from */
-             0, 0, 0, /* target */
-             0, 1, 0); /* up */
-
-   glViewport(0, 0, ShadowTexWidth, ShadowTexHeight);
-   glClear(GL_DEPTH_BUFFER_BIT);
-   DrawScene();
-
-   /*
-    * Step 2: copy depth buffer into texture map
-    */
-   if (DisplayMode == SHOW_DEPTH_MAPPING) {
-      /* load depth image as gray-scale luminance texture */
-      GLfloat *depth = (GLfloat *) malloc(ShadowTexWidth * ShadowTexHeight
-                                          * sizeof(GLfloat));
-      if (depth) {
-         glReadPixels(0, 0, ShadowTexWidth, ShadowTexHeight,
-                      GL_DEPTH_COMPONENT, GL_FLOAT, depth);
-         glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE,
-                      ShadowTexWidth, ShadowTexHeight, 0,
-                      GL_LUMINANCE, GL_FLOAT, depth);
-         free(depth);
-      }
-   }
-   else {
-      /* The normal shadow case */
-      glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
-                       0, 0, ShadowTexWidth, ShadowTexHeight, 0);
-   }
-
-   /*
-    * Step 3: render scene from point of view of the camera
-    */
-   glViewport(0, 0, WindowWidth, WindowHeight);
-   if (DisplayMode == SHOW_DEPTH_IMAGE) {
-      ShowDepthBuffer(WindowWidth, WindowHeight, 0, 1);
-   }
-   else {
-      glMatrixMode(GL_PROJECTION);
-      glLoadIdentity();
-      glFrustum(-ar, ar, -1.0, 1.0, 4.0, 50.0);
-      glMatrixMode(GL_MODELVIEW);
-      glLoadIdentity();
-      glTranslatef(0.0, 0.0, -22.0);
-      glRotatef(Xrot, 1, 0, 0);
-      glRotatef(Yrot, 0, 1, 0);
-      glRotatef(Zrot, 0, 0, 1);
-      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-      glLightfv(GL_LIGHT0, GL_POSITION, LightPos);
-      if (LinearFilter) {
-         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-      }
-      else {
-         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-      }
-      if (DisplayMode == SHOW_DEPTH_MAPPING) {
-#if defined(GL_ARB_shadow)
-         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);
-#elif defined(GL_SGIX_shadow)
-         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_SGIX, GL_FALSE);
-#endif
-         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-         glEnable(GL_TEXTURE_2D);
-         MakeShadowMatrix(LightPos, SpotDir, SpotAngle, ShadowNear, ShadowFar);
-         EnableIdentityTexgen();
-      }
-      else if (DisplayMode == SHOW_DISTANCE) {
-         glMatrixMode(GL_TEXTURE);
-         glLoadIdentity();
-         glMatrixMode(GL_MODELVIEW);
-         EnableDistanceTexgen(LightPos, SpotDir, ShadowNear+Bias, ShadowFar);
-         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-         glEnable(GL_TEXTURE_1D);
-      }
-      else {
-         assert(DisplayMode == SHOW_NORMAL);
-#if defined(GL_ARB_shadow)
-         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB,
-                         GL_COMPARE_R_TO_TEXTURE_ARB);
-#elif defined(GL_SGIX_shadow)
-         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_SGIX, GL_TRUE);
-#endif
-         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-         glEnable(GL_TEXTURE_2D);
-         MakeShadowMatrix(LightPos, SpotDir, SpotAngle, ShadowNear, ShadowFar);
-         EnableIdentityTexgen();
-      }
-      DrawScene();
-      DisableTexgen();
-      glDisable(GL_TEXTURE_1D);
-      glDisable(GL_TEXTURE_2D);
-   }
-
-   glutSwapBuffers();
-
-   error = glGetError();
-   if (error) {
-      printf("GL Error: %s\n", (char *) gluErrorString(error));
-   }
-}
-
-
-static void
-Reshape(int width, int height)
-{
-   WindowWidth = width;
-   WindowHeight = height;
-   if (width >= 512 && height >= 512) {
-      ShadowTexWidth = ShadowTexHeight = 512;
-   }
-   else if (width >= 256 && height >= 256) {
-      ShadowTexWidth = ShadowTexHeight = 256;
-   }
-   else {
-      ShadowTexWidth = ShadowTexHeight = 128;
-   }
-   printf("Using %d x %d depth texture\n", ShadowTexWidth, ShadowTexHeight);
-}
-
-
-static void
-Idle(void)
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-   Yrot += 75.0 * dt;
-   /*LightLongitude -= 5.0;*/
-   glutPostRedisplay();
-}
-
-
-static void
-Key(unsigned char key, int x, int y)
-{
-   const GLfloat step = 3.0;
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 'a':
-         Anim = !Anim;
-         if (Anim)
-            glutIdleFunc(Idle);
-         else
-            glutIdleFunc(NULL);
-         break;
-      case 'b':
-         Bias -= 0.01;
-         printf("Bias %g\n", Bias);
-         break;
-      case 'B':
-         Bias += 0.01;
-         printf("Bias %g\n", Bias);
-         break;
-      case 'd':
-         DisplayMode = SHOW_DISTANCE;
-         break;
-      case 'f':
-         LinearFilter = !LinearFilter;
-         printf("%s filtering\n", LinearFilter ? "Bilinear" : "Nearest");
-         break;
-      case 'i':
-         DisplayMode = SHOW_DEPTH_IMAGE;
-         break;
-      case 'm':
-         DisplayMode = SHOW_DEPTH_MAPPING;
-         break;
-      case 'n':
-      case ' ':
-         DisplayMode = SHOW_NORMAL;
-         break;
-      case 'o':
-         if (HaveEXTshadowFuncs) {
-            Operator++;
-            if (Operator >= 8)
-               Operator = 0;
-            printf("Operator: %s\n", OperatorName[Operator]);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB,
-                            OperatorFunc[Operator]);
-         }
-         break;
-      case 'z':
-         Zrot -= step;
-         break;
-      case 'Z':
-         Zrot += step;
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void
-SpecialKey(int key, int x, int y)
-{
-   const GLfloat step = 3.0;
-   const int mod = glutGetModifiers();
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         if (mod)
-            LightLatitude += step;
-         else
-            Xrot += step;
-         break;
-      case GLUT_KEY_DOWN:
-         if (mod)
-            LightLatitude -= step;
-         else
-            Xrot -= step;
-         break;
-      case GLUT_KEY_LEFT:
-         if (mod)
-            LightLongitude += step;
-         else
-            Yrot += step;
-         break;
-      case GLUT_KEY_RIGHT:
-         if (mod)
-            LightLongitude -= step;
-         else
-            Yrot -= step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void
-Init(void)
-{
-#if defined(GL_ARB_depth_texture) && defined(GL_ARB_shadow)
-   if (!glutExtensionSupported("GL_ARB_depth_texture") ||
-       !glutExtensionSupported("GL_ARB_shadow")) {
-      printf("Sorry, this demo requires the GL_ARB_depth_texture and GL_ARB_shadow extensions\n");
-      exit(1);
-   }
-   printf("Using GL_ARB_depth_texture and GL_ARB_shadow\n");
-#elif defined(GL_SGIX_depth_texture) && defined(GL_SGIX_shadow)
-   if (!glutExtensionSupported("GL_SGIX_depth_texture") ||
-       !glutExtensionSupported("GL_SGIX_shadow")) {
-      printf("Sorry, this demo requires the GL_SGIX_depth_texture and GL_SGIX_shadow extensions\n");
-      exit(1);
-   }
-   printf("Using GL_SGIX_depth_texture and GL_SGIX_shadow\n");
-#endif
-   HaveEXTshadowFuncs = glutExtensionSupported("GL_EXT_shadow_funcs");
-
-   glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_CLAMP);
-   glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_T, GL_CLAMP);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
-#if defined(GL_ARB_shadow)
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB,
-                   GL_COMPARE_R_TO_TEXTURE_ARB);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL);
-#elif defined(GL_SGIX_shadow)
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_OPERATOR_SGIX,
-                   GL_TEXTURE_LEQUAL_R_SGIX);
-#endif
-
-#if defined(GL_ARB_shadow_ambient)
-   if (glutExtensionSupported("GL_ARB_shadow_ambient")) {
-      glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB, 0.3);
-      printf("and GL_ARB_shadow_ambient\n");
-   }
-#elif defined(GL_SGIX_shadow_ambient)
-   if (glutExtensionSupported("GL_SGIX_shadow_ambient")) {
-      glTexParameterf(GL_TEXTURE_2D, GL_SHADOW_AMBIENT_SGIX, 0.3);
-      printf("and GL_SGIX_shadow_ambient\n");
-   }
-#endif
-
-   /* setup 1-D grayscale texture image for SHOW_DISTANCE mode */
-   {
-      GLuint i;
-      GLubyte image[256];
-      for (i = 0; i < 256; i++)
-         image[i] = i;
-      glTexImage1D(GL_TEXTURE_1D, 0, GL_LUMINANCE,
-                   256, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, image);
-   }
-
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_LIGHTING);
-   glEnable(GL_LIGHT0);
-}
-
-
-static void
-PrintHelp(void)
-{
-   printf("Keys:\n");
-   printf("  a = toggle animation\n");
-   printf("  i = show depth texture image\n");
-   printf("  m = show depth texture mapping\n");
-   printf("  d = show fragment distance from light source\n");
-   printf("  n = show normal, shadowed image\n");
-   printf("  f = toggle nearest/bilinear texture filtering\n");
-   printf("  b/B = decrease/increase shadow map Z bias\n");
-   printf("  cursor keys = rotate scene\n");
-   printf("  <shift> + cursor keys = rotate light source\n");
-   if (HaveEXTshadowFuncs)
-      printf("  o = cycle through comparison modes\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
-   glutInit(&argc, argv);
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WindowWidth, WindowHeight);
-   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc(Reshape);
-   glutKeyboardFunc(Key);
-   glutSpecialFunc(SpecialKey);
-   glutDisplayFunc(Display);
-   if (Anim)
-      glutIdleFunc(Idle);
-   Init();
-   PrintHelp();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/spectex.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/spectex.c
deleted file mode 100644
index 6ab119157..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/spectex.c
+++ /dev/null
@@ -1,272 +0,0 @@
-
-/*
- * GLUT demonstration of texturing with specular highlights.
- *
- * When drawing a lit, textured surface one usually wants the specular
- * highlight to override the texture colors.  However, OpenGL applies
- * texturing after lighting so the specular highlight is modulated by
- * the texture.
- *
- * The solution here shown here is a two-pass algorithm:
- *  1. Draw the textured surface without specular lighting.
- *  2. Enable blending to add the next pass:
- *  3. Redraw the surface with a matte white material and only the
- *     specular components of light sources enabled.
- *
- * Brian Paul  February 1997
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glut.h>
-
-
-static GLUquadricObj *Quadric;
-static GLuint Sphere;
-static GLfloat LightPos[4] = {10.0, 10.0, 10.0, 1.0};
-static GLfloat Delta = 20.0;
-static GLint Mode = 4;
-
-/*static GLfloat Blue[4] = {0.0, 0.0, 1.0, 1.0};*/
-/*static GLfloat Gray[4] = {0.5, 0.5, 0.5, 1.0};*/
-static GLfloat Black[4] = {0.0, 0.0, 0.0, 1.0};
-static GLfloat White[4] = {1.0, 1.0, 1.0, 1.0};
-
-static GLboolean smooth = 1;
-
-static void
-Idle(void)
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-   LightPos[0] += Delta * dt;
-   if (LightPos[0]>15.0 || LightPos[0]<-15.0)
-      Delta = -Delta;
-
-   glutPostRedisplay();
-}
-
-
-static void Display( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-   glLightfv(GL_LIGHT0, GL_POSITION, LightPos);
-
-   glPushMatrix();
-   glRotatef(90.0, 1.0, 0.0, 0.0);
-
-   if (Mode==0) {
-      /* Typical method: diffuse + specular + texture */
-      glEnable(GL_TEXTURE_2D);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE, White);  /* enable diffuse */
-      glLightfv(GL_LIGHT0, GL_SPECULAR, White);  /* enable specular */
-#ifdef GL_VERSION_1_2
-      glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SINGLE_COLOR);
-#endif
-      glCallList(Sphere);
-   }
-   else if (Mode==1) {
-      /* just specular highlight */
-      glDisable(GL_TEXTURE_2D);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE, Black);  /* disable diffuse */
-      glLightfv(GL_LIGHT0, GL_SPECULAR, White);  /* enable specular */
-#ifdef GL_VERSION_1_2
-      glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SINGLE_COLOR);
-#endif
-      glCallList(Sphere);
-   }
-   else if (Mode==2) {
-      /* diffuse textured */
-      glEnable(GL_TEXTURE_2D);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE, White);  /* enable diffuse */
-      glLightfv(GL_LIGHT0, GL_SPECULAR, Black);  /* disable specular */
-#ifdef GL_VERSION_1_2
-      glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SINGLE_COLOR);
-#endif
-      glCallList(Sphere);
-   }
-   else if (Mode==3) {
-      /* 2-pass: diffuse textured then add specular highlight*/
-      glEnable(GL_TEXTURE_2D);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE, White);  /* enable diffuse */
-      glLightfv(GL_LIGHT0, GL_SPECULAR, Black);  /* disable specular */
-#ifdef GL_VERSION_1_2
-      glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SINGLE_COLOR);
-#endif
-      glCallList(Sphere);
-      /* specular highlight */
-      glDepthFunc(GL_EQUAL);  /* redraw same pixels */
-      glDisable(GL_TEXTURE_2D);
-      glEnable(GL_BLEND);  /* add */
-      glLightfv(GL_LIGHT0, GL_DIFFUSE, Black);  /* disable diffuse */
-      glLightfv(GL_LIGHT0, GL_SPECULAR, White);  /* enable specular */
-      glCallList(Sphere);
-      glDepthFunc(GL_LESS);
-      glDisable(GL_BLEND);
-   }
-   else if (Mode==4) {
-      /* OpenGL 1.2's separate diffuse and specular color */
-      glEnable(GL_TEXTURE_2D);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE, White);  /* enable diffuse */
-      glLightfv(GL_LIGHT0, GL_SPECULAR, White);  /* enable specular */
-#ifdef GL_VERSION_1_2
-      glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
-#endif
-      glCallList(Sphere);
-   }
-
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -12.0 );
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-   case 27:
-      exit(0);
-      break;
-   case 's':
-      smooth = !smooth;
-      if (smooth)
-         glShadeModel(GL_SMOOTH);
-      else
-         glShadeModel(GL_FLAT);
-      break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         break;
-      case GLUT_KEY_DOWN:
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( void )
-{
-   int i, j;
-   GLubyte texImage[64][64][3];
-
-   glEnable(GL_LIGHTING);
-   glEnable(GL_LIGHT0);
-   glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, 0);
-   glLightModelfv(GL_LIGHT_MODEL_AMBIENT, Black);
-
-   glShadeModel(GL_SMOOTH);
-
-   glMaterialfv(GL_FRONT, GL_DIFFUSE, White);
-   glMaterialfv(GL_FRONT, GL_SPECULAR, White);
-   glMaterialf(GL_FRONT, GL_SHININESS, 20.0);
-
-   /* Actually, these are set again later */
-   glLightfv(GL_LIGHT0, GL_DIFFUSE, White);
-   glLightfv(GL_LIGHT0, GL_SPECULAR, White);
-
-   Quadric = gluNewQuadric();
-   gluQuadricTexture( Quadric, GL_TRUE );
-
-   Sphere= glGenLists(1);
-   glNewList( Sphere, GL_COMPILE );
-   gluSphere( Quadric, 1.0, 24, 24 );
-   glEndList();
-
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_CULL_FACE);
-
-   for (i=0;i<64;i++) {
-      for (j=0;j<64;j++) {
-         int k = ((i>>3)&1) ^ ((j>>3)&1);
-         texImage[i][j][0] = 255*k;
-         texImage[i][j][1] = 255*(1-k);
-         texImage[i][j][2] = 0;
-      }
-   }
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glTexImage2D( GL_TEXTURE_2D,
-                 0,
-                 3,
-                 64, 64,
-                 0,
-                 GL_RGB, GL_UNSIGNED_BYTE,
-                 texImage );
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-   glEnable(GL_TEXTURE_2D);
-
-   glBlendFunc(GL_ONE, GL_ONE);
-}
-
-
-static void ModeMenu(int entry)
-{
-   if (entry==99)
-      exit(0);
-   Mode = entry;
-}
-
-
-int main( int argc, char *argv[] )
-{
-
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 300, 300 );
-
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-
-   glutCreateWindow( "spectex" );
-
-   Init();
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   glutIdleFunc( Idle );
-
-   glutCreateMenu( ModeMenu );
-   glutAddMenuEntry("1-pass lighting + texturing", 0);
-   glutAddMenuEntry("specular lighting", 1);
-   glutAddMenuEntry("diffuse lighting + texturing", 2);
-   glutAddMenuEntry("2-pass lighting + texturing", 3);
-#ifdef GL_VERSION_1_2
-   glutAddMenuEntry("OpenGL 1.2 separate specular", 4);
-#endif
-   glutAddMenuEntry("Quit", 99);
-   glutAttachMenu(GLUT_RIGHT_BUTTON);
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/spriteblast.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/spriteblast.c
deleted file mode 100644
index d6e9a4de2..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/spriteblast.c
+++ /dev/null
@@ -1,554 +0,0 @@
-
-/* Copyright (c) Mark J. Kilgard, 1997.  */
-
-/* This program is freely distributable without licensing fees 
-   and is provided without guarantee or warrantee expressed or 
-   implied. This program is -not- in the public domain. */
-
-/* This example demonstrates how to render particle effects
-   with OpenGL.  A cloud of pinkish/orange particles explodes with the
-   particles bouncing off the ground.  When the EXT_point_parameters
-   is present , the particle size is attenuated based on eye distance. */
-
-
-/* Modified by Brian Paul to test GL_ARB_point_sprite */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>       /* for cos(), sin(), and sqrt() */
-#ifdef _WIN32
-#include <windows.h>
-#endif
-#define GL_GLEXT_PROTOTYPES
-#include <GL/glut.h>
-
-/* Some <math.h> files do not define M_PI... */
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-#if 0  /* For debugging. */
-#undef GL_EXT_point_parameters
-#endif
-
-static GLfloat angle = -150;   /* in degrees */
-static int spin = 0;
-static int moving, begin;
-static float theTime;
-static int repeat = 1;
-static int blend = 1;
-int useMipmaps = 1;
-int linearFiltering = 1;
-
-static GLfloat constant[3] = { .2,  0.0,     0.0 };
-static GLfloat linear[3]   = { .0,   .1,     0.0 };
-static GLfloat theQuad[3]  = { .005, 0.1, 1/600.0 };
-
-#define MAX_POINTS 2000
-
-static int numPoints = 200;
-
-static GLfloat pointList[MAX_POINTS][3];
-static GLfloat pointTime[MAX_POINTS];
-static GLfloat pointVelocity[MAX_POINTS][2];
-static GLfloat pointDirection[MAX_POINTS][2];
-static int colorList[MAX_POINTS];
-static int animate = 1, motion = 0, org = 0, sprite = 1, smooth = 1;
-
-static GLfloat colorSet[][4] = {
-  /* Shades of red. */
-  { 0.7, 0.2, 0.4, 0.5 },
-  { 0.8, 0.0, 0.7, 0.5 },
-  { 1.0, 0.0, 0.0, 0.5 },
-  { 0.9, 0.3, 0.6, 0.5 },
-  { 1.0, 0.4, 0.0, 0.5 },
-  { 1.0, 0.0, 0.5, 0.5 },
-};
-
-#define NUM_COLORS (sizeof(colorSet)/sizeof(colorSet[0]))
-
-#define DEAD (NUM_COLORS+1)
-
-
-/* GL */
-static GLint spritePattern[16][16] = {
-   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
-   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
-   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
-   { 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0 },
-   { 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0 },
-   { 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0 },
-   { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0 },
-   { 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0 },
-   { 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0 },
-   { 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0 },
-   { 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0 },
-   { 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0 },
-   { 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0 },
-   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
-   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
-   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
-};
-
-
-
-
-#if 0  /* drand48 might be better on Unix machines */
-#define RANDOM_RANGE(lo, hi) ((lo) + (hi - lo) * drand48())
-#else
-static float float_rand(void) { return rand() / (float) RAND_MAX; }
-#define RANDOM_RANGE(lo, hi) ((lo) + (hi - lo) * float_rand())
-#endif
-
-#define MEAN_VELOCITY 3.0
-#define GRAVITY 2.0
-
-/* Modeling units of ground extent in each X and Z direction. */
-#define EDGE 12
-
-static void
-makePointList(void)
-{
-  float angle, velocity, direction;
-  int i;
-
-  motion = 1;
-  for (i=0; i<numPoints; i++) {
-    pointList[i][0] = 0.0;
-    pointList[i][1] = 0.0;
-    pointList[i][2] = 0.0;
-    pointTime[i] = 0.0;
-    angle = (RANDOM_RANGE(60.0, 70.0)) * M_PI/180.0;
-    direction = RANDOM_RANGE(0.0, 360.0) * M_PI/180.0;
-    pointDirection[i][0] = cos(direction);
-    pointDirection[i][1] = sin(direction);
-    velocity = MEAN_VELOCITY + RANDOM_RANGE(-0.8, 1.0);
-    pointVelocity[i][0] = velocity * cos(angle);
-    pointVelocity[i][1] = velocity * sin(angle);
-    colorList[i] = rand() % NUM_COLORS;
-  }
-  theTime = 0.0;
-}
-
-static void
-updatePointList(void)
-{
-  float distance;
-  int i;
-
-  static double t0 = -1.;
-  double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-  if (t0 < 0.0)
-    t0 = t;
-  dt = t - t0;
-  t0 = t;
-
-  motion = 0;
-  for (i=0; i<numPoints; i++) {
-    distance = pointVelocity[i][0] * theTime;
-
-    /* X and Z */
-    pointList[i][0] = pointDirection[i][0] * distance;
-    pointList[i][2] = pointDirection[i][1] * distance;
-
-    /* Z */
-    pointList[i][1] =
-      (pointVelocity[i][1] - 0.5 * GRAVITY * pointTime[i])*pointTime[i];
-
-    /* If we hit the ground, bounce the point upward again. */
-    if (pointList[i][1] <= 0.0) {
-      if (distance > EDGE) {
-        /* Particle has hit ground past the distance duration of
-          the particles.  Mark particle as dead. */
-       colorList[i] = NUM_COLORS;  /* Not moving. */
-       continue;
-      }
-
-      pointVelocity[i][1] *= 0.8;  /* 80% of previous up velocity. */
-      pointTime[i] = 0.0;  /* Reset the particles sense of up time. */
-    }
-    motion = 1;
-    pointTime[i] += dt;
-  }
-  theTime += dt;
-  if (!motion && !spin) {
-    if (repeat) {
-      makePointList();
-    } else {
-      glutIdleFunc(NULL);
-    }
-  }
-}
-
-static void
-idle(void)
-{
-  updatePointList();
-  if (spin) {
-    angle += 0.3;
-  }
-  glutPostRedisplay();
-}
-
-static void
-visible(int vis)
-{
-  if (vis == GLUT_VISIBLE) {
-    if (animate && (motion || spin)) {
-      glutIdleFunc(idle);
-    }
-  } else {
-    glutIdleFunc(NULL);
-  }
-}
-
-static void
-redraw(void)
-{
-  int i;
-
-  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-  glPushMatrix();
-  glRotatef(15.0, 1.0, 0.0, 0.0);
-  glRotatef(angle, 0.0, 1.0, 0.0);
-
-  glDepthMask(GL_FALSE);
-
-  /* Draw the floor. */
-/*  glEnable(GL_TEXTURE_2D);*/
-  glColor3f(0.1, 0.5, 1.0);
-  glBegin(GL_QUADS);
-    glTexCoord2f(0.0, 0.0);
-    glVertex3f(-EDGE, -0.05, -EDGE);
-    glTexCoord2f(20.0, 0.0);
-    glVertex3f(EDGE, -0.05, -EDGE);
-    glTexCoord2f(20.0, 20.0);
-    glVertex3f(EDGE, -0.05, EDGE);
-    glTexCoord2f(0.0, 20.0);
-    glVertex3f(-EDGE, -0.05, EDGE);
-  glEnd();
-
-  /* Allow particles to blend with each other. */
-  glDepthMask(GL_TRUE);
-
-  if (blend)
-     glEnable(GL_BLEND);
-
-  if (sprite) {
-     glEnable(GL_TEXTURE_2D);
-#ifdef GL_ARB_point_sprite
-     glEnable(GL_POINT_SPRITE_ARB);
-#endif
-  }
-
-  glColor3f(1,1,1);
-  glBegin(GL_POINTS);
-    for (i=0; i<numPoints; i++) {
-      /* Draw alive particles. */
-      if (colorList[i] != DEAD) {
-        if (!sprite) glColor4fv(colorSet[colorList[i]]);
-        glVertex3fv(pointList[i]);
-      }
-    }
-  glEnd();
-
-  glDisable(GL_TEXTURE_2D);
-#ifdef GL_ARB_point_sprite
-  glDisable(GL_POINT_SPRITE_ARB);
-#endif
-  glDisable(GL_BLEND);
-
-  glPopMatrix();
-
-  glutSwapBuffers();
-}
-
-/* ARGSUSED2 */
-static void
-mouse(int button, int state, int x, int y)
-{
-  /* Scene can be spun around Y axis using left
-     mouse button movement. */
-  if (button == GLUT_LEFT_BUTTON && state == GLUT_DOWN) {
-    moving = 1;
-    begin = x;
-  }
-  if (button == GLUT_LEFT_BUTTON && state == GLUT_UP) {
-    moving = 0;
-  }
-}
-
-/* ARGSUSED1 */
-static void
-mouseMotion(int x, int y)
-{
-  if (moving) {
-    angle = angle + (x - begin);
-    begin = x;
-    glutPostRedisplay();
-  }
-}
-
-static void
-menu(int option)
-{
-  switch (option) {
-  case 0:
-    makePointList();
-    break;
-#ifdef GL_ARB_point_parameters
-  case 1:
-    glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, constant);
-    break;
-  case 2:
-    glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, linear);
-    break;
-  case 3:
-    glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, theQuad);
-    break;
-#endif
-  case 4:
-    blend = 1;
-    break;
-  case 5:
-    blend = 0;
-    break;
-#ifdef GL_ARB_point_parameters
-  case 6:
-    glPointParameterfARB(GL_POINT_FADE_THRESHOLD_SIZE_ARB, 1.0);
-    break;
-  case 7:
-    glPointParameterfARB(GL_POINT_FADE_THRESHOLD_SIZE_ARB, 10.0);
-    break;
-#endif
-  case 8:
-    glEnable(GL_POINT_SMOOTH);
-    smooth = 1;
-    break;
-  case 9:
-    glDisable(GL_POINT_SMOOTH);
-    smooth = 0;
-    break;
-  case 10:
-    glPointSize(4.0);
-    break;
-  case 11:
-    glPointSize(8.0);
-    break;
-  case 12:
-    glPointSize(16.0);
-    break;
-  case 13:
-    spin = 1 - spin;
-    if (animate && (spin || motion)) {
-      glutIdleFunc(idle);
-    } else {
-      glutIdleFunc(NULL);
-    }
-    break;
-  case 14:
-    numPoints = 200;
-    break;
-  case 15:
-    numPoints = 500;
-    break;
-  case 16:
-    numPoints = 1000;
-    break;
-  case 17:
-    numPoints = 2000;
-    break;
-  case 666:
-    exit(0);
-  }
-  glutPostRedisplay();
-}
-
-/* ARGSUSED1 */
-static void
-key(unsigned char c, int x, int y)
-{
-  switch (c) {
-  case 13:
-    animate = 1 - animate;  /* toggle. */
-    if (animate && (motion || spin)) {
-      glutIdleFunc(idle);
-    } else {
-      glutIdleFunc(NULL);
-    }
-    break;
-  case ' ':
-    animate = 1;
-    makePointList();
-    glutIdleFunc(idle);
-    break;
-  case 'o':
-  case 'O':
-    org ^= 1;
-#ifdef GL_VERSION_2_0
-#ifdef GL_ARB_point_parameters
-    glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN,
-                      org ? GL_LOWER_LEFT : GL_UPPER_LEFT);
-#endif
-#endif
-    glutPostRedisplay();
-    break;
-  case 't':
-  case 'T':
-    sprite ^= 1;
-    glutPostRedisplay();
-    break;
-  case 's':
-  case 'S':
-    (smooth ^= 1) ? glEnable(GL_POINT_SMOOTH) : glDisable(GL_POINT_SMOOTH);
-    glutPostRedisplay();
-    break;
-  case '0':
-    glPointSize(1.0);
-    glutPostRedisplay();
-    break;
-  case '1':
-    glPointSize(2.0);
-    glutPostRedisplay();
-    break;
-  case '2':
-    glPointSize(4.0);
-    glutPostRedisplay();
-    break;
-  case '3':
-    glPointSize(8.0);
-    glutPostRedisplay();
-    break;
-  case '4':
-    glPointSize(16.0);
-    glutPostRedisplay();
-    break;
-  case 27:
-    exit(0);
-  }
-}
-
-
-
-static void
-makeSprite(void)
-{
-   GLubyte texture[16][16][4];
-   int i, j;
-
-   if (!glutExtensionSupported("GL_ARB_point_sprite")) {
-      printf("Sorry, this demo requires GL_ARB_point_sprite.\n");
-      exit(0);
-   }
-   if (!glutExtensionSupported("GL_ARB_point_parameters")) {
-      printf("Sorry, this demo requires GL_ARB_point_parameters.\n");
-      exit(0);
-   }
-
-   for (i = 0; i < 16; i++) {
-      for (j = 0; j < 16; j++) {
-         if (spritePattern[i][j]) {
-            texture[i][j][0] = 255;
-            texture[i][j][1] = 255;
-            texture[i][j][2] = 255;
-            texture[i][j][3] = 255;
-         }
-         else {
-            texture[i][j][0] = 255;
-            texture[i][j][1] = 0;
-            texture[i][j][2] = 0;
-            texture[i][j][3] = 0;
-         }
-      }
-   }
-
-   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE,
-                texture);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-#ifdef GL_ARB_point_sprite
-   glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
-#endif
-}
-
-
-static void
-reshape(int width, int height)
-{
-  GLfloat h = (GLfloat) height / (GLfloat) width;
-
-  glViewport(0, 0, (GLint) width, (GLint) height);
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glFrustum(-1.0, 1.0, -h, h, 2.0, 30.0);
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-  glTranslatef(0.0, 0.0, -10.0);
-}
-
-int
-main(int argc, char **argv)
-{
-  int i;
-  glutInit(&argc, argv);
-  glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_MULTISAMPLE);
-
-  for (i=1; i<argc; i++) {
-    if(!strcmp("-noms", argv[i])) {
-      glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
-      printf("forcing no multisampling\n");
-    } else if(!strcmp("-nomipmaps", argv[i])) {
-      useMipmaps = 0;
-    } else if(!strcmp("-nearest", argv[i])) {
-      linearFiltering = 0;
-    }
-  }
-  glutInitWindowPosition(0, 0);
-  glutInitWindowSize(600,300);
-  glutCreateWindow("sprite blast");
-  glutReshapeFunc(reshape);
-  glutDisplayFunc(redraw);
-  glutMouseFunc(mouse);
-  glutMotionFunc(mouseMotion);
-  glutVisibilityFunc(visible);
-  glutKeyboardFunc(key);
-  glutCreateMenu(menu);
-  glutAddMenuEntry("Reset time", 0);
-  glutAddMenuEntry("Constant", 1);
-  glutAddMenuEntry("Linear", 2);
-  glutAddMenuEntry("Quadratic", 3);
-  glutAddMenuEntry("Blend on", 4);
-  glutAddMenuEntry("Blend off", 5);
-  glutAddMenuEntry("Threshold 1", 6);
-  glutAddMenuEntry("Threshold 10", 7);
-  glutAddMenuEntry("Point smooth on", 8);
-  glutAddMenuEntry("Point smooth off", 9);
-  glutAddMenuEntry("Point size 4", 10);
-  glutAddMenuEntry("Point size 8", 11);
-  glutAddMenuEntry("Point size 16", 12);
-  glutAddMenuEntry("Toggle spin", 13);
-  glutAddMenuEntry("200 points ", 14);
-  glutAddMenuEntry("500 points ", 15);
-  glutAddMenuEntry("1000 points ", 16);
-  glutAddMenuEntry("2000 points ", 17);
-  glutAddMenuEntry("Quit", 666);
-  glutAttachMenu(GLUT_RIGHT_BUTTON);
-
-  glShadeModel(GL_FLAT);
-  glEnable(GL_DEPTH_TEST);
-  glEnable(GL_POINT_SMOOTH);
-  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-  glPointSize(16.0);
-#ifdef GL_ARB_point_parameters
-  glPointParameterfvARB(GL_POINT_DISTANCE_ATTENUATION_ARB, theQuad);
-#endif
-
-  makePointList();
-  makeSprite();
-
-  glutMainLoop();
-  return 0;             /* ANSI C requires main to return int. */
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/stex3d.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/stex3d.c
deleted file mode 100644
index e4554d071..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/stex3d.c
+++ /dev/null
@@ -1,678 +0,0 @@
-/*----------------------------- 
- * stex3d.c GL example of the mesa 3d-texture extention to simulate procedural
- *            texturing, it uses a perlin noise and turbulence functions.
- * 
- * Author:   Daniel Barrero
- *           barrero@irit.fr
- *           dbarrero@pegasus.uniandes.edu.co
- *
- * Converted to GLUT by brianp on 1/1/98
- * Massive clean-up on 2002/10/23 by brianp
- *
- *      
- * cc stex3d.c -o stex3d -lglut -lMesaGLU -lMesaGL -lX11 -lXext -lm 
- *
- *---------------------------- */
-
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/gl.h>
-#include <GL/glut.h>
-
-
-#ifndef M_PI
-#define M_PI            3.14159265358979323846
-#endif
-
-#define NOISE_TEXTURE 1
-#define GRADIENT_TEXTURE 2
-
-#define TORUS 1
-#define SPHERE 2
-
-static int tex_width=64, tex_height=64, tex_depth=64;
-static float angx=0, angy=0, angz=0;
-static int texgen = 2, animate = 1, smooth = 1, wireframe = 0;
-static int CurTexture = NOISE_TEXTURE, CurObject = TORUS;
-
-
-static void
-BuildTorus(void)
-{
-   GLint i, j;
-   float theta1, phi1, theta2, phi2, rings, sides;
-   float v0[03], v1[3], v2[3], v3[3];
-   float t0[03], t1[3], t2[3], t3[3];
-   float n0[3], n1[3], n2[3], n3[3];
-   float innerRadius = 0.25;
-   float outerRadius = 0.5;
-   float scalFac;
-
-   rings = 16;
-   sides = 12;
-   scalFac = 1 / (outerRadius * 2);
-
-   glNewList(TORUS, GL_COMPILE);
-   for (i = 0; i < rings; i++) {
-      theta1 = (float) i *2.0 * M_PI / rings;
-      theta2 = (float) (i + 1) * 2.0 * M_PI / rings;
-      for (j = 0; j < sides; j++) {
-	 phi1 = (float) j *2.0 * M_PI / sides;
-	 phi2 = (float) (j + 1) * 2.0 * M_PI / sides;
-
-	 v0[0] = cos(theta1) * (outerRadius + innerRadius * cos(phi1));
-	 v0[1] = -sin(theta1) * (outerRadius + innerRadius * cos(phi1));
-	 v0[2] = innerRadius * sin(phi1);
-
-	 v1[0] = cos(theta2) * (outerRadius + innerRadius * cos(phi1));
-	 v1[1] = -sin(theta2) * (outerRadius + innerRadius * cos(phi1));
-	 v1[2] = innerRadius * sin(phi1);
-	 v2[0] = cos(theta2) * (outerRadius + innerRadius * cos(phi2));
-	 v2[1] = -sin(theta2) * (outerRadius + innerRadius * cos(phi2));
-	 v2[2] = innerRadius * sin(phi2);
-
-	 v3[0] = cos(theta1) * (outerRadius + innerRadius * cos(phi2));
-	 v3[1] = -sin(theta1) * (outerRadius + innerRadius * cos(phi2));
-	 v3[2] = innerRadius * sin(phi2);
-
-	 n0[0] = cos(theta1) * (cos(phi1));
-	 n0[1] = -sin(theta1) * (cos(phi1));
-	 n0[2] = sin(phi1);
-
-	 n1[0] = cos(theta2) * (cos(phi1));
-	 n1[1] = -sin(theta2) * (cos(phi1));
-	 n1[2] = sin(phi1);
-
-	 n2[0] = cos(theta2) * (cos(phi2));
-	 n2[1] = -sin(theta2) * (cos(phi2));
-	 n2[2] = sin(phi2);
-
-	 n3[0] = cos(theta1) * (cos(phi2));
-	 n3[1] = -sin(theta1) * (cos(phi2));
-	 n3[2] = sin(phi2);
-
-	 t0[0] = v0[0] * scalFac + 0.5;
-	 t0[1] = v0[1] * scalFac + 0.5;
-	 t0[2] = v0[2] * scalFac + 0.5;
-
-	 t1[0] = v1[0] * scalFac + 0.5;
-	 t1[1] = v1[1] * scalFac + 0.5;
-	 t1[2] = v1[2] * scalFac + 0.5;
-
-	 t2[0] = v2[0] * scalFac + 0.5;
-	 t2[1] = v2[1] * scalFac + 0.5;
-	 t2[2] = v2[2] * scalFac + 0.5;
-
-	 t3[0] = v3[0] * scalFac + 0.5;
-	 t3[1] = v3[1] * scalFac + 0.5;
-	 t3[2] = v3[2] * scalFac + 0.5;
-
-	 glBegin(GL_POLYGON);
-	 glNormal3fv(n3);
-	 glTexCoord3fv(t3);
-	 glVertex3fv(v3);
-	 glNormal3fv(n2);
-	 glTexCoord3fv(t2);
-	 glVertex3fv(v2);
-	 glNormal3fv(n1);
-	 glTexCoord3fv(t1);
-	 glVertex3fv(v1);
-	 glNormal3fv(n0);
-	 glTexCoord3fv(t0);
-	 glVertex3fv(v0);
-	 glEnd();
-      }
-   }
-   glEndList();
-}
-
-
-/*--------------------------------------------------------------------
- noise function over R3 - implemented by a pseudorandom tricubic spline 
-              EXCERPTED FROM SIGGRAPH 92, COURSE 23
-                        PROCEDURAL MODELING
-                             Ken Perlin
-                           New York University
-----------------------------------------------------------------------*/
-
-
-#define DOT(a,b) (a[0] * b[0] + a[1] * b[1] + a[2] * b[2])
-#define B 128
-static int p[B + B + 2];
-static float g[B + B + 2][3];
-#define setup(i,b0,b1,r0,r1) \
-        t = vec[i] + 10000.; \
-        b0 = ((int)t) & (B-1); \
-        b1 = (b0+1) & (B-1); \
-        r0 = t - (int)t; \
-        r1 = r0 - 1.;
-
-static float
-noise3(float vec[3])
-{
-   int bx0, bx1, by0, by1, bz0, bz1, b00, b10, b01, b11;
-   float rx0, rx1, ry0, ry1, rz0, rz1, *q, sx, sy, sz, a, b, c, d, t, u, v;
-   register int i, j;
-
-   setup(0, bx0, bx1, rx0, rx1);
-   setup(1, by0, by1, ry0, ry1);
-   setup(2, bz0, bz1, rz0, rz1);
-
-   i = p[bx0];
-   j = p[bx1];
-
-   b00 = p[i + by0];
-   b10 = p[j + by0];
-   b01 = p[i + by1];
-   b11 = p[j + by1];
-
-#define at(rx,ry,rz) ( rx * q[0] + ry * q[1] + rz * q[2] )
-#define surve(t) ( t * t * (3. - 2. * t) )
-#define lerp(t, a, b) ( a + t * (b - a) )
-
-   sx = surve(rx0);
-   sy = surve(ry0);
-   sz = surve(rz0);
-
-   q = g[b00 + bz0];
-   u = at(rx0, ry0, rz0);
-   q = g[b10 + bz0];
-   v = at(rx1, ry0, rz0);
-   a = lerp(sx, u, v);
-
-   q = g[b01 + bz0];
-   u = at(rx0, ry1, rz0);
-   q = g[b11 + bz0];
-   v = at(rx1, ry1, rz0);
-   b = lerp(sx, u, v);
-
-   c = lerp(sy, a, b);		/* interpolate in y at lo x */
-
-   q = g[b00 + bz1];
-   u = at(rx0, ry0, rz1);
-   q = g[b10 + bz1];
-   v = at(rx1, ry0, rz1);
-   a = lerp(sx, u, v);
-
-   q = g[b01 + bz1];
-   u = at(rx0, ry1, rz1);
-   q = g[b11 + bz1];
-   v = at(rx1, ry1, rz1);
-   b = lerp(sx, u, v);
-
-   d = lerp(sy, a, b);		/* interpolate in y at hi x */
-
-   return 1.5 * lerp(sz, c, d);	/* interpolate in z */
-}
-
-static void
-initNoise(void)
-{
-   /*long random(); */
-   int i, j, k;
-   float v[3], s;
-
-   /* Create an array of random gradient vectors uniformly on the unit sphere */
-   /*srandom(1); */
-   srand(1);
-   for (i = 0; i < B; i++) {
-      do {			/* Choose uniformly in a cube */
-	 for (j = 0; j < 3; j++)
-	    v[j] = (float) ((rand() % (B + B)) - B) / B;
-	 s = DOT(v, v);
-      } while (s > 1.0);	/* If not in sphere try again */
-      s = sqrt(s);
-      for (j = 0; j < 3; j++)	/* Else normalize */
-	 g[i][j] = v[j] / s;
-   }
-
-   /* Create a pseudorandom permutation of [1..B] */
-   for (i = 0; i < B; i++)
-      p[i] = i;
-   for (i = B; i > 0; i -= 2) {
-      k = p[i];
-      p[i] = p[j = rand() % B];
-      p[j] = k;
-   }
-
-   /* Extend g and p arrays to allow for faster indexing */
-   for (i = 0; i < B + 2; i++) {
-      p[B + i] = p[i];
-      for (j = 0; j < 3; j++)
-	 g[B + i][j] = g[i][j];
-   }
-}
-
-
-static float
-turbulence(float point[3], float lofreq, float hifreq)
-{
-   float freq, t, p[3];
-
-   p[0] = point[0] + 123.456;
-   p[1] = point[1];
-   p[2] = point[2];
-
-   t = 0;
-   for (freq = lofreq; freq < hifreq; freq *= 2.) {
-      t += fabs(noise3(p)) / freq;
-      p[0] *= 2.;
-      p[1] *= 2.;
-      p[2] *= 2.;
-   }
-   return t - 0.3;		/* readjust to make mean value = 0.0 */
-}
-
-
-static void
-create3Dtexture(void)
-{
-   unsigned char *voxels = NULL;
-   int i, j, k;
-   unsigned char *vp;
-   float vec[3];
-   int tmp;
-
-   printf("creating 3d textures...\n");
-   voxels =
-      (unsigned char *)
-      malloc((size_t) (4 * tex_width * tex_height * tex_depth));
-   vp = voxels;
-   for (i = 0; i < tex_width; i++) {
-      vec[0] = i;
-      for (j = 0; j < tex_height; j++) {
-	 vec[1] = j;
-	 for (k = 0; k < tex_depth; k++) {
-	    vec[2] = k;
-	    tmp = (sin(k * i * j + turbulence(vec, 0.01, 1)) + 1) * 127.5;
-	    *vp++ = 0;
-	    *vp++ = 0;
-	    *vp++ = tmp;
-	    *vp++ = tmp + 128;
-	 }
-      }
-   }
-
-   printf("setting up 3d texture...\n");
-
-   glBindTexture(GL_TEXTURE_3D, NOISE_TEXTURE);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_REPEAT);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA,
-		tex_width, tex_height, tex_depth,
-		0, GL_RGBA, GL_UNSIGNED_BYTE, voxels);
-
-   free(voxels);
-
-   printf("finished setting up 3d texture image.\n");
-}
-
-
-static void
-printHelp(void)
-{
-   printf("\nUsage: stex3d  <cmd line options>\n");
-   printf(" cmd line options:\n");
-   printf("      -wxxx   Width of the texture (Default=64)\n");
-   printf("      -hxxx   Height of the texture (Default=64)\n");
-   printf("      -dxxx   Depth of the texture (Default=64)\n");
-   printf(" Keyboard Options:\n");
-   printf("    up/down   rotate around X\n");
-   printf("  left/right  rotate around Y\n");
-   printf("      z/Z     rotate around Z\n");
-   printf("       a      toggle animation\n");
-   printf("       s      toggle smooth shading\n");
-   printf("       t      toggle texgen mode\n");
-   printf("       o      toggle object: torus/sphere\n");
-   printf("       i      toggle texture image: noise/gradient\n");
-}
-
-
-static GLenum
-parseCmdLine(int argc, char **argv)
-{
-   GLint i;
-
-   for (i = 1; i < argc; i++) {
-      if (strstr(argv[i], "-w") == 0) {
-	 tex_width = atoi((argv[i]) + 2);
-      }
-      else if (strstr(argv[i], "-h") == 0) {
-	 tex_height = atoi((argv[i]) + 2);
-      }
-      else if (strstr(argv[i], "-d") == 0) {
-	 tex_depth = atoi((argv[i]) + 2);
-      }
-      else if (strcmp(argv[i], "-help") == 0) {
-	 printHelp();
-	 return GL_FALSE;
-      }
-      else {
-	 printf("%s (Bad option).\n", argv[i]);
-	 printHelp();
-	 return GL_FALSE;
-      }
-   }
-   if (tex_width == 0 || tex_height == 0 || tex_depth == 0) {
-      printf("%s (Bad option).\n", "size parameters can't be 0");
-      printHelp();
-      return GL_FALSE;
-   }
-   return GL_TRUE;
-}
-
-
-static void
-drawScene(void)
-{
-   static const GLfloat sPlane[4] = { 0.5, 0, 0, -.5 };
-   static const GLfloat tPlane[4] = { 0, 0.5, 0, -.5 };
-   static const GLfloat rPlane[4] = { 0, 0, 0.5, -.5 };
-
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-   glPushMatrix();
-   if (texgen == 2) {
-      glTexGenfv(GL_S, GL_EYE_PLANE, sPlane);
-      glTexGenfv(GL_T, GL_EYE_PLANE, tPlane);
-      glTexGenfv(GL_R, GL_EYE_PLANE, rPlane);
-   }
-
-   glRotatef(angx, 1.0, 0.0, 0.0);
-   glRotatef(angy, 0.0, 1.0, 0.0);
-   glRotatef(angz, 0.0, 0.0, 1.0);
-
-   if (texgen == 1) {
-      glTexGenfv(GL_S, GL_EYE_PLANE, sPlane);
-      glTexGenfv(GL_T, GL_EYE_PLANE, tPlane);
-      glTexGenfv(GL_R, GL_EYE_PLANE, rPlane);
-   }
-
-   if (texgen) {
-      glEnable(GL_TEXTURE_GEN_S);
-      glEnable(GL_TEXTURE_GEN_T);
-      glEnable(GL_TEXTURE_GEN_R);
-   }
-   else {
-      glDisable(GL_TEXTURE_GEN_S);
-      glDisable(GL_TEXTURE_GEN_T);
-      glDisable(GL_TEXTURE_GEN_R);
-   }
-
-   glCallList(CurObject);
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-static void
-resize(int w, int h)
-{
-   float ar = (float) w / (float) h;
-   float ax = 0.6 * ar;
-   float ay = 0.6;
-   glViewport(0, 0, (GLint) w, (GLint) h);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glFrustum(-ax, ax, -ay, ay, 2, 20);
-   /*glOrtho(-2, 2, -2, 2, -10, 10);*/
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glTranslatef(0, 0, -4);
-}
-
-
-static void
-Idle(void)
-{
-   float t = glutGet(GLUT_ELAPSED_TIME);
-   angx = 0.01 * t;
-   angy = 0.03 * t;
-   angz += 0;
-   glutPostRedisplay();
-}
-
-
-static void
-SpecialKey(int k, int x, int y)
-{
-  switch (k) {
-  case GLUT_KEY_UP:
-    angx += 5.0;
-    break;
-  case GLUT_KEY_DOWN:
-    angx -= 5.0;
-    break;
-  case GLUT_KEY_LEFT:
-    angy += 5.0;
-    break;
-  case GLUT_KEY_RIGHT:
-    angy -= 5.0;
-    break;
-  default:
-    return;
-  }
-  glutPostRedisplay();
-}
-
-
-static void
-KeyHandler(unsigned char key, int x, int y)
-{
-   static const char *mode[] = {
-      "glTexCoord3f (no texgen)",
-      "texgen fixed to object coords",
-      "texgen fixed to eye coords"
-   };
-   (void) x;
-   (void) y;
-   switch (key) {
-   case 27:
-   case 'q':
-   case 'Q':			/* quit game. */
-      exit(0);
-      break;
-   case 'z':
-      angz += 10;
-      break;
-   case 'Z':
-      angz -= 10;
-      break;
-   case 's':
-      smooth = !smooth;
-      if (smooth)
-         glShadeModel(GL_SMOOTH);
-      else
-         glShadeModel(GL_FLAT);
-      break;
-   case 't':
-      texgen++;
-      if (texgen > 2)
-         texgen = 0;
-      printf("Texgen: %s\n", mode[texgen]);
-      break;
-   case 'o':
-      if (CurObject == TORUS)
-         CurObject = SPHERE;
-      else
-         CurObject = TORUS;
-      break;
-   case 'i':
-      if (CurTexture == NOISE_TEXTURE)
-         CurTexture = GRADIENT_TEXTURE;
-      else
-         CurTexture = NOISE_TEXTURE;
-      glBindTexture(GL_TEXTURE_3D, CurTexture);
-      break;
-   case 'a':
-      animate = !animate;
-      if (animate)
-         glutIdleFunc(Idle);
-      else
-         glutIdleFunc(NULL);
-      break;
-   case 'w':
-      wireframe = !wireframe;
-      if (wireframe)
-         glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-      else
-         glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-      break;
-   default:
-      break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void
-create3Dgradient(void)
-{
-   unsigned char *v;
-   int i, j, k;
-   unsigned char *voxels = NULL;
-
-   voxels = (unsigned char *) malloc(4 * tex_width * tex_height * tex_depth);
-   v = voxels;
-
-   for (i = 0; i < tex_depth; i++) {
-      for (j = 0; j < tex_height; j++) {
-	 for (k = 0; k < tex_width; k++) {
-	    GLint r = (255 * i) / (tex_depth - 1);
-	    GLint g = (255 * j) / (tex_height - 1);
-	    GLint b = (255 * k) / (tex_width - 1);
-	    *v++ = r;
-	    *v++ = g;
-	    *v++ = b;
-	    *v++ = 255;
-	 }
-      }
-   }
-
-
-   glBindTexture(GL_TEXTURE_3D, GRADIENT_TEXTURE);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-   glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_REPEAT);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA,
-		tex_width, tex_height, tex_depth,
-		0, GL_RGBA, GL_UNSIGNED_BYTE, voxels);
-
-   free(voxels);
-}
-
-
-
-static void
-init(void)
-{
-   static const GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 };
-   static const GLfloat mat_shininess[] = { 25.0 };
-   static const GLfloat gray[] = { 0.6, 0.6, 0.6, 0.0 };
-   static const GLfloat white[] = { 1.0, 1.0, 1.0, 0.0 };
-   static const GLfloat light_position[] = { 0.0, 1.0, 1.0, 0.0 };
-
-   int max;
-
-   /* see if we have OpenGL 1.2 or later, for 3D texturing */
-   {
-      const char *version = (const char *) glGetString(GL_VERSION);
-      if (strncmp(version, "1.0", 3) == 0 || strncmp(version, "1.1", 3) == 0) {
-	 printf("Sorry, OpenGL 1.2 or later is required\n");
-	 exit(1);
-      }
-   }
-   printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
-   glGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &max);
-   printf("GL_MAX_3D_TEXTURE_SIZE: %d\n", max);
-   printf("Current 3D texture size: %d x %d x %d\n",
-          tex_width, tex_height, tex_depth);
-
-   /* init light */
-   glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
-   glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
-   glLightfv(GL_LIGHT1, GL_POSITION, light_position);
-   glLightfv(GL_LIGHT1, GL_AMBIENT, gray);
-   glLightfv(GL_LIGHT1, GL_DIFFUSE, white);
-   glLightfv(GL_LIGHT1, GL_SPECULAR, white);
-   glColorMaterial(GL_FRONT, GL_DIFFUSE);
-   glEnable(GL_COLOR_MATERIAL);
-   glEnable(GL_LIGHTING);
-   glEnable(GL_LIGHT1);
-
-   glClearColor(.5, .5, .5, 0);
-
-   {
-      GLUquadricObj *q;
-      q = gluNewQuadric();
-      gluQuadricTexture( q, GL_TRUE );
-      glNewList(SPHERE, GL_COMPILE);
-      gluSphere( q, 0.95, 30, 15 );
-      glEndList();
-      gluDeleteQuadric(q);
-   }
-
-   BuildTorus();
-
-
-   create3Dgradient();
-
-   initNoise();
-   create3Dtexture();
-
-   glEnable(GL_TEXTURE_3D);
-
-   /*
-      glBlendFunc(GL_SRC_COLOR, GL_SRC_ALPHA);
-      glEnable(GL_BLEND); 
-    */
-   glEnable(GL_DEPTH_TEST);
-
-   glColor3f(0.6, 0.7, 0.8);
-}
-
-
-int
-main(int argc, char **argv)
-{
-   glutInit(&argc, argv);
-
-   if (parseCmdLine(argc, argv) == GL_FALSE) {
-      exit(0);
-   }
-
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(400, 400);
-   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
-
-   if (glutCreateWindow("stex3d") <= 0) {
-      exit(0);
-   }
-
-   init();
-
-   printHelp();
-
-   glutReshapeFunc(resize);
-   glutKeyboardFunc(KeyHandler);
-   glutSpecialFunc(SpecialKey);
-   glutDisplayFunc(drawScene);
-   if (animate)
-      glutIdleFunc(Idle);
-   glutMainLoop();
-   return 0;
-}
-
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/teapot.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/teapot.c
deleted file mode 100644
index 38ede7ac3..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/teapot.c
+++ /dev/null
@@ -1,675 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <time.h>
-#include <string.h>
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#include <GL/glut.h>
-#include "readtex.h"
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen=1;
-#endif
-
-static int WIDTH=640;
-static int HEIGHT=480;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-#define BASESIZE 10.0
-
-#define BASERES 12
-#define TEAPOTRES 3
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-extern void shadowmatrix(GLfloat [4][4], GLfloat [4], GLfloat [4]);
-extern void findplane(GLfloat [4], GLfloat [3], GLfloat [3], GLfloat [3]);
-
-
-static int win=0;
-
-static float obs[3]={5.0,0.0,1.0};
-static float dir[3];
-static float v=0.0;
-static float alpha=-90.0;
-static float beta=90.0;
-
-static GLfloat baseshadow[4][4];
-static GLfloat lightpos[4]={2.3,0.0,3.0,1.0};
-static GLfloat lightdir[3]={-2.3,0.0,-3.0};
-static GLfloat lightalpha=0.0;
-
-static int fog=1;
-static int bfcull=1;
-static int usetex=1;
-static int help=1;
-static int joyavailable=0;
-static int joyactive=0;
-
-static GLuint t1id,t2id;
-static GLuint teapotdlist,basedlist,lightdlist;
-
-
-
-/******************** begin shadow code ********************/
-
-/* Taken from the projshadow.c - by Tom McReynolds, SGI */
-
-/* Modified by David Bucciarelli */
-
-enum {
-  X, Y, Z, W
-};
-enum {
-  A, B, C, D
-};
-
-/* create a matrix that will project the desired shadow */
-void
-shadowmatrix(GLfloat shadowMat[4][4],
-  GLfloat groundplane[4],
-  GLfloat lightpos[4])
-{
-  GLfloat dot;
-
-  /* find dot product between light position vector and ground plane normal */
-  dot = groundplane[X] * lightpos[X] +
-    groundplane[Y] * lightpos[Y] +
-    groundplane[Z] * lightpos[Z] +
-    groundplane[W] * lightpos[W];
-
-  shadowMat[0][0] = dot - lightpos[X] * groundplane[X];
-  shadowMat[1][0] = 0.f - lightpos[X] * groundplane[Y];
-  shadowMat[2][0] = 0.f - lightpos[X] * groundplane[Z];
-  shadowMat[3][0] = 0.f - lightpos[X] * groundplane[W];
-
-  shadowMat[X][1] = 0.f - lightpos[Y] * groundplane[X];
-  shadowMat[1][1] = dot - lightpos[Y] * groundplane[Y];
-  shadowMat[2][1] = 0.f - lightpos[Y] * groundplane[Z];
-  shadowMat[3][1] = 0.f - lightpos[Y] * groundplane[W];
-
-  shadowMat[X][2] = 0.f - lightpos[Z] * groundplane[X];
-  shadowMat[1][2] = 0.f - lightpos[Z] * groundplane[Y];
-  shadowMat[2][2] = dot - lightpos[Z] * groundplane[Z];
-  shadowMat[3][2] = 0.f - lightpos[Z] * groundplane[W];
-
-  shadowMat[X][3] = 0.f - lightpos[W] * groundplane[X];
-  shadowMat[1][3] = 0.f - lightpos[W] * groundplane[Y];
-  shadowMat[2][3] = 0.f - lightpos[W] * groundplane[Z];
-  shadowMat[3][3] = dot - lightpos[W] * groundplane[W];
-
-}
-
-/* find the plane equation given 3 points */
-void
-findplane(GLfloat plane[4],
-  GLfloat v0[3], GLfloat v1[3], GLfloat v2[3])
-{
-  GLfloat vec0[3], vec1[3];
-
-  /* need 2 vectors to find cross product */
-  vec0[X] = v1[X] - v0[X];
-  vec0[Y] = v1[Y] - v0[Y];
-  vec0[Z] = v1[Z] - v0[Z];
-
-  vec1[X] = v2[X] - v0[X];
-  vec1[Y] = v2[Y] - v0[Y];
-  vec1[Z] = v2[Z] - v0[Z];
-
-  /* find cross product to get A, B, and C of plane equation */
-  plane[A] = vec0[Y] * vec1[Z] - vec0[Z] * vec1[Y];
-  plane[B] = -(vec0[X] * vec1[Z] - vec0[Z] * vec1[X]);
-  plane[C] = vec0[X] * vec1[Y] - vec0[Y] * vec1[X];
-
-  plane[D] = -(plane[A] * v0[X] + plane[B] * v0[Y] + plane[C] * v0[Z]);
-}
-
-/******************** end shadow code ********************/
-
-
-static void calcposobs(void)
-{
-  dir[0]=sin(alpha*M_PI/180.0);
-  dir[1]=cos(alpha*M_PI/180.0)*sin(beta*M_PI/180.0);
-  dir[2]=cos(beta*M_PI/180.0);
-
-  obs[0]+=v*dir[0];
-  obs[1]+=v*dir[1];
-  obs[2]+=v*dir[2];
-}
-
-static void special(int k, int x, int y)
-{
-  switch(k) {
-  case GLUT_KEY_LEFT:
-    alpha-=2.0;
-    break;
-  case GLUT_KEY_RIGHT:
-    alpha+=2.0;
-    break;
-  case GLUT_KEY_DOWN:
-    beta-=2.0;
-    break;
-  case GLUT_KEY_UP:
-    beta+=2.0;
-    break;
-  }
-}
-
-static void key(unsigned char k, int x, int y)
-{
-  switch(k) {
-  case 27:
-    exit(0);
-    break;
-    
-  case 'a':
-    v+=0.005;
-    break;
-  case 'z':
-    v-=0.005;
-    break;
-
-  case 'j':
-    joyactive=(!joyactive);
-    break;
-  case 'h':
-    help=(!help);
-    break;
-  case 'f':
-    fog=(!fog);
-    break;
-  case 't':
-    usetex=(!usetex);
-    break;
-  case 'b':
-    if(bfcull) {
-      glDisable(GL_CULL_FACE);
-      bfcull=0;
-    } else {
-      glEnable(GL_CULL_FACE);
-      bfcull=1;
-    }
-    break;
-#ifdef XMESA
-  case ' ':
-    XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-    fullscreen=(!fullscreen);
-    break;
-#endif
-  }
-}
-
-static void reshape(int w, int h) 
-{
-  WIDTH=w;
-  HEIGHT=h;
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  gluPerspective(45.0,w/(float)h,0.2,40.0);
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-  glViewport(0,0,w,h);
-}
-
-static void printstring(void *font, char *string)
-{
-  int len,i;
-
-  len=(int)strlen(string);
-  for(i=0;i<len;i++)
-    glutBitmapCharacter(font,string[i]);
-}
-
-static void printhelp(void)
-{
-  glEnable(GL_BLEND);
-  glColor4f(0.5,0.5,0.5,0.5);
-  glRecti(40,40,600,440);
-  glDisable(GL_BLEND);
-
-  glColor3f(1.0,0.0,0.0);
-  glRasterPos2i(300,420);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"Help");
-
-  glRasterPos2i(60,390);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"h - Toggle Help");
-  glRasterPos2i(60,360);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"t - Toggle Textures");
-  glRasterPos2i(60,330);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"f - Toggle Fog");
-  glRasterPos2i(60,300);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"b - Toggle Back face culling");
-  glRasterPos2i(60,270);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"Arrow Keys - Rotate");
-  glRasterPos2i(60,240);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"a - Increase velocity");
-  glRasterPos2i(60,210);
-  printstring(GLUT_BITMAP_TIMES_ROMAN_24,"z - Decrease velocity");
-
-  glRasterPos2i(60,180);
-  if(joyavailable)
-    printstring(GLUT_BITMAP_TIMES_ROMAN_24,"j - Toggle jostick control (Joystick control available)");
-  else
-    printstring(GLUT_BITMAP_TIMES_ROMAN_24,"(No Joystick control available)");
-}
-
-static void drawbase(void)
-{
-  static const GLfloat amb[4] = { 1, .5, 0.2, 1 };
-  static const GLfloat diff[4] = { 1, .4, 0.2, 1 };
-  int i,j;
-  float x,y,dx,dy;
-
-  glBindTexture(GL_TEXTURE_2D,t1id);
-
-  glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, amb);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diff);
-  dx=BASESIZE/BASERES;
-  dy=-BASESIZE/BASERES;
-  for(y=BASESIZE/2.0,j=0;j<BASERES;y+=dy,j++) {
-    glBegin(GL_QUAD_STRIP);
-    glColor3f(1.0,1.0,1.0);
-    glNormal3f(0.0,0.0,1.0);
-    for(x=-BASESIZE/2.0,i=0;i<BASERES;x+=dx,i++) {
-      glTexCoord2f(x,y);
-      glVertex3f(x,y,0.0);
-
-      glTexCoord2f(x,y+dy);
-      glVertex3f(x,y+dy,0.0);
-    }
-    glEnd();
-  }
-}
-
-static void drawteapot(void)
-{
-  static const GLfloat amb[4] = {  0.2, 0.2, 0.2, 1 };
-  static const GLfloat diff[4] = { 0.8, 0.3, 0.5, 1 };
-  static float xrot=0.0;
-  static float zrot=0.0;
-
-  glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, amb);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diff);
-
-  glPushMatrix();
-  glRotatef(lightalpha,0.0,0.0,1.0);
-  glMultMatrixf((GLfloat *)baseshadow);
-  glRotatef(-lightalpha,0.0,0.0,1.0);
-
-  glTranslatef(0.0,0.0,1.0);
-  glRotatef(xrot,1.0,0.0,0.0);
-  glRotatef(zrot,0.0,0.0,1.0);
-
-  glDisable(GL_TEXTURE_2D);
-  glDisable(GL_DEPTH_TEST);
-  glDisable(GL_LIGHTING);
-
-  glColor3f(0.0,0.0,0.0);
-  glCallList(teapotdlist);
-
-  glEnable(GL_DEPTH_TEST);
-  glEnable(GL_LIGHTING);
-  if(usetex)
-    glEnable(GL_TEXTURE_2D);
-
-  glPopMatrix();
-
-  glPushMatrix();
-  glTranslatef(0.0,0.0,1.0);
-  glRotatef(xrot,1.0,0.0,0.0);
-  glRotatef(zrot,0.0,0.0,1.0);
-
-  glCallList(teapotdlist);
-  glPopMatrix();
-
-  xrot+=2.0;
-  zrot+=1.0;
-}
-
-static void drawlight1(void)
-{
-  glPushMatrix();
-  glRotatef(lightalpha,0.0,0.0,1.0);
-  glLightfv(GL_LIGHT0,GL_POSITION,lightpos);
-  glLightfv(GL_LIGHT0,GL_SPOT_DIRECTION,lightdir);
-
-  glPopMatrix();
-}
-
-static void drawlight2(void)
-{
-  glPushMatrix();
-  glRotatef(lightalpha,0.0,0.0,1.0);
-  glTranslatef(lightpos[0],lightpos[1],lightpos[2]);
-
-  glDisable(GL_TEXTURE_2D);
-  glCallList(lightdlist);
-  if(usetex)
-    glEnable(GL_TEXTURE_2D);
-  
-  glPopMatrix();
-
-  lightalpha+=1.0;
-}
-
-static void dojoy(void)
-{
-#ifdef WIN32
-  static UINT max[2]={0,0};
-  static UINT min[2]={0xffffffff,0xffffffff},center[2];
-  MMRESULT res;
-  JOYINFO joy;
-
-  res=joyGetPos(JOYSTICKID1,&joy);
-
-  if(res==JOYERR_NOERROR) {
-    joyavailable=1;
-
-    if(max[0]<joy.wXpos)
-      max[0]=joy.wXpos;
-    if(min[0]>joy.wXpos)
-      min[0]=joy.wXpos;
-    center[0]=(max[0]+min[0])/2;
-
-    if(max[1]<joy.wYpos)
-      max[1]=joy.wYpos;
-    if(min[1]>joy.wYpos)
-      min[1]=joy.wYpos;
-    center[1]=(max[1]+min[1])/2;
-
-    if(joyactive) {
-      if(fabs(center[0]-(float)joy.wXpos)>0.1*(max[0]-min[0]))
-	alpha-=2.5*(center[0]-(float)joy.wXpos)/(max[0]-min[0]);
-      if(fabs(center[1]-(float)joy.wYpos)>0.1*(max[1]-min[1]))
-	beta+=2.5*(center[1]-(float)joy.wYpos)/(max[1]-min[1]);
-
-      if(joy.wButtons & JOY_BUTTON1)
-	v+=0.005;
-      if(joy.wButtons & JOY_BUTTON2)
-	v-=0.005;
-    }
-  } else
-    joyavailable=0;
-#endif
-}
-
-static void draw(void)
-{
-  static char frbuf[80] = "";
-
-  dojoy();
-
-  glEnable(GL_DEPTH_TEST);
-  glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
-
-  if(usetex)
-    glEnable(GL_TEXTURE_2D);
-  else
-    glDisable(GL_TEXTURE_2D);
-
-  if(fog)
-    glEnable(GL_FOG);
-  else
-    glDisable(GL_FOG);
-
-  glEnable(GL_LIGHTING);
-
-  glShadeModel(GL_SMOOTH);
-
-  glPushMatrix();
-  calcposobs();
-
-  gluLookAt(obs[0],obs[1],obs[2],
-	    obs[0]+dir[0],obs[1]+dir[1],obs[2]+dir[2],
-	    0.0,0.0,1.0);
-
-  drawlight1();
-  glCallList(basedlist);
-  drawteapot();
-  drawlight2();
-  glPopMatrix();
-  
-  glDisable(GL_LIGHTING);
-  glDisable(GL_TEXTURE_2D);
-  glDisable(GL_DEPTH_TEST);
-  glDisable(GL_FOG);
-  glShadeModel(GL_FLAT);
-
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glOrtho(-0.5,639.5,-0.5,479.5,-1.0,1.0);
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-
-  glColor3f(1.0,0.0,0.0);
-  glRasterPos2i(10,10);
-  printstring(GLUT_BITMAP_HELVETICA_18,frbuf);
-  glRasterPos2i(350,470);
-  printstring(GLUT_BITMAP_HELVETICA_10,"Teapot V1.2 Written by David Bucciarelli (tech.hmw@plus.it)");
-
-  if(help)
-    printhelp();
-
-  reshape(WIDTH,HEIGHT);
-
-  glutSwapBuffers();
-
-   Frames++;
-
-   {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      if (t - T0 >= 2000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         sprintf(frbuf, "Frame rate: %f", fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-static void inittextures(void)
-{
-  glGenTextures(1,&t1id);
-  glBindTexture(GL_TEXTURE_2D,t1id);
-
-  glPixelStorei(GL_UNPACK_ALIGNMENT,4);
-  if (!LoadRGBMipmaps("../images/tile.rgb", GL_RGB)) {
-    fprintf(stderr,"Error reading a texture.\n");
-    exit(-1);
-  }
-
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
-  
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_LINEAR);
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
-
-  glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_MODULATE);
-
-  glGenTextures(1,&t2id);
-  glBindTexture(GL_TEXTURE_2D,t2id);
-
-  glPixelTransferf(GL_RED_SCALE, 0.75);
-  glPixelTransferf(GL_RED_BIAS, 0.25);
-  glPixelTransferf(GL_GREEN_SCALE, 0.75);
-  glPixelTransferf(GL_GREEN_BIAS, 0.25);
-  glPixelTransferf(GL_BLUE_SCALE, 0.75);
-  glPixelTransferf(GL_BLUE_BIAS, 0.25);
-
-  if (!LoadRGBMipmaps("../images/bw.rgb", GL_RGB)) {
-    fprintf(stderr,"Error reading a texture.\n");
-    exit(-1);
-  }
-
-  glPixelTransferf(GL_RED_SCALE, 1.0);
-  glPixelTransferf(GL_RED_BIAS, 0.0);
-  glPixelTransferf(GL_GREEN_SCALE, 1.0);
-  glPixelTransferf(GL_GREEN_BIAS, 0.0);
-  glPixelTransferf(GL_BLUE_SCALE, 1.0);
-  glPixelTransferf(GL_BLUE_BIAS, 0.0);
-
-
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
-  
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_LINEAR);
-  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
-
-  glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_MODULATE);
-}
-
-static void initlight(void)
-{
-  float matamb[4] ={0.5, 0.5, 0.5, 1.0};
-  float matdiff[4]={0.9, 0.2, 0.2, 1.0};
-  float matspec[4]={1.0,1.0,1.0,1.0};
-
-  float lamb[4] ={1.5, 1.5, 1.5, 1.0};
-  float ldiff[4]={1.0, 1.0, 1.0, 1.0};
-  float lspec[4]={1.0, 1.0, 1.0, 1.0};
-
-  glLightf(GL_LIGHT0,GL_SPOT_CUTOFF,70.0);
-  glLightf(GL_LIGHT0,GL_SPOT_EXPONENT,20.0);
-  glLightfv(GL_LIGHT0,GL_AMBIENT,lamb);
-  glLightfv(GL_LIGHT0,GL_DIFFUSE,ldiff);
-  glLightfv(GL_LIGHT0,GL_SPECULAR,lspec);
-
-  glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 15.0);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, matdiff);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, matspec);
-  glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, matamb);
-
-  glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lamb);
-  glEnable(GL_LIGHT0);
-}
-
-static void initdlists(void)
-{
-  GLUquadricObj *lcone,*lbase;
-  GLfloat plane[4];
-  GLfloat v0[3]={0.0,0.0,0.0};
-  GLfloat v1[3]={1.0,0.0,0.0};
-  GLfloat v2[3]={0.0,1.0,0.0};
-
-  findplane(plane,v0,v1,v2);
-  shadowmatrix(baseshadow,plane,lightpos);
-
-  teapotdlist=glGenLists(1);
-  glNewList(teapotdlist,GL_COMPILE);
-  glRotatef(90.0,1.0,0.0,0.0);
-  glCullFace(GL_FRONT);
-  glBindTexture(GL_TEXTURE_2D,t2id);
-  glutSolidTeapot(0.75);
-  glCullFace(GL_BACK);
-  glEndList();
-
-  basedlist=glGenLists(1);
-  glNewList(basedlist,GL_COMPILE);
-  drawbase();
-  glEndList();
-
-  lightdlist=glGenLists(1);
-  glNewList(lightdlist,GL_COMPILE);
-  glDisable(GL_LIGHTING);
- 
-  lcone=gluNewQuadric();
-  lbase=gluNewQuadric();
-  glRotatef(45.0,0.0,1.0,0.0);
-
-  glColor3f(1.0,1.0,1.0);
-  glCullFace(GL_FRONT);
-  gluDisk(lbase,0.0,0.2,12.0,1.0);
-  glCullFace(GL_BACK);
-
-  glColor3f(0.5,0.0,0.0);
-  gluCylinder(lcone,0.2,0.0,0.5,12,1);
-
-  gluDeleteQuadric(lcone);
-  gluDeleteQuadric(lbase);
-
-  glEnable(GL_LIGHTING);
-  glEndList();
-}
-
-int main(int ac, char **av)
-{
-  float fogcolor[4]={0.025,0.025,0.025,1.0};
-
-  fprintf(stderr,"Teapot V1.2\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
-
-  /*
-    if(!SetPriorityClass(GetCurrentProcess(),REALTIME_PRIORITY_CLASS)) {
-    fprintf(stderr,"Error setting the process class.\n");
-    return 0;
-    }
-
-    if(!SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_TIME_CRITICAL)) {
-    fprintf(stderr,"Error setting the process priority.\n");
-    return 0;
-    }
-    */
-
-  glutInitWindowPosition(0,0);
-  glutInitWindowSize(WIDTH,HEIGHT);
-  glutInit(&ac,av);
-
-  glutInitDisplayMode(GLUT_RGB|GLUT_DEPTH|GLUT_DOUBLE);
-
-  if(!(win=glutCreateWindow("Teapot"))) {
-    fprintf(stderr,"Error, couldn't open window\n");
-	return -1;
-  }
-
-  reshape(WIDTH,HEIGHT);
-
-  glShadeModel(GL_SMOOTH);
-  glEnable(GL_DEPTH_TEST);
-  glEnable(GL_CULL_FACE);
-  glEnable(GL_TEXTURE_2D);
-
-  glEnable(GL_FOG);
-  glFogi(GL_FOG_MODE,GL_EXP2);
-  glFogfv(GL_FOG_COLOR,fogcolor);
-
-  glFogf(GL_FOG_DENSITY,0.04);
-  glHint(GL_FOG_HINT,GL_NICEST);
-  glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
-
-  calcposobs();
-
-  inittextures();
-  initlight();
-
-  initdlists();
-
-  glClearColor(fogcolor[0],fogcolor[1],fogcolor[2],fogcolor[3]);
-
-  glutReshapeFunc(reshape);
-  glutDisplayFunc(draw);
-  glutKeyboardFunc(key);
-  glutSpecialFunc(special);
-  glutIdleFunc(draw);
-
-  glutMainLoop();
-
-  return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/terrain.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/terrain.c
deleted file mode 100644
index be78ea495..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/terrain.c
+++ /dev/null
@@ -1,656 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- *
- * based on a Mikael SkiZoWalker's (MoDEL) / France (Skizo@Hol.Fr) demo
- */
-
-#include <stdio.h>
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#include <GL/glut.h>
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-#define heightMnt	450
-#define	lenghtXmnt	62
-#define lenghtYmnt	62
-
-#define stepXmnt     96.0
-#define stepYmnt     96.0
-
-#define WIDTH 640
-#define HEIGHT 480
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-#define TSCALE 4
-
-#define FOV 85
-
-static GLfloat terrain[256 * 256];
-static GLfloat terraincolor[256 * 256][3];
-
-static int win = 0;
-
-static int fog = 1;
-static int bfcull = 1;
-static int usetex = 1;
-static int poutline = 0;
-static int help = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-static float ModZMnt;
-static long GlobalMnt = 0;
-
-static int scrwidth = WIDTH;
-static int scrheight = HEIGHT;
-
-#define OBSSTARTX 992.0
-#define OBSSTARTY 103.0
-
-static float obs[3] = { OBSSTARTX, heightMnt * 1.3, OBSSTARTY };
-static float dir[3], v1[2], v2[2];
-static float v = 900.0;
-static float alpha = 75.0;
-static float beta = 90.0;
-
-static void
-calcposobs(void)
-{
-   float alpha1, alpha2;
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-
-   dir[0] = sin(alpha * M_PI / 180.0);
-   dir[2] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
-   dir[1] = cos(beta * M_PI / 180.0);
-
-   if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5)
-      dir[0] = 0;
-   if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5)
-      dir[1] = 0;
-   if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
-      dir[2] = 0;
-
-   alpha1 = alpha + FOV / 2.0;
-   v1[0] = sin(alpha1 * M_PI / 180.0);
-   v1[1] = cos(alpha1 * M_PI / 180.0);
-
-   alpha2 = alpha - FOV / 2.0;
-   v2[0] = sin(alpha2 * M_PI / 180.0);
-   v2[1] = cos(alpha2 * M_PI / 180.0);
-
-   obs[0] += v * dir[0] * dt;
-   obs[1] += v * dir[1] * dt;
-   obs[2] += v * dir[2] * dt;
-
-   if (obs[1] < 0.0)
-      obs[1] = 0.0;
-}
-
-static void
-reshape(int width, int height)
-{
-   scrwidth = width;
-   scrheight = height;
-   glViewport(0, 0, (GLint) width, (GLint) height);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(50.0, ((GLfloat) width / (GLfloat) height),
-		  lenghtXmnt * stepYmnt * 0.01, lenghtXmnt * stepYmnt * 0.7);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-}
-
-static int
-clipstrip(float y, float *start, float *end)
-{
-   float x1, x2, t1, t2, tmp;
-
-   if (v1[1] == 0.0) {
-      t1 = 0.0;
-      x1 = -HUGE_VAL;
-   }
-   else {
-      t1 = y / v1[1];
-      x1 = t1 * v1[0];
-   }
-
-   if (v2[1] == 0.0) {
-      t2 = 0.0;
-      x2 = HUGE_VAL;
-   }
-   else {
-      t2 = y / v2[1];
-      x2 = t2 * v2[0];
-   }
-
-   if (((x1 < -(lenghtXmnt * stepXmnt) / 2) && (t2 <= 0.0)) ||
-       ((t1 <= 0.0) && (x2 > (lenghtXmnt * stepXmnt) / 2)) ||
-       ((t1 < 0.0) && (t2 < 0.0)))
-      return 0;
-
-   if ((t1 == 0.0) && (t2 == 0.0)) {
-      if ((v1[0] < 0.0) && (v1[1] > 0.0) && (v2[0] < 0.0) && (v2[1] < 0.0)) {
-	 *start = -(lenghtXmnt * stepXmnt) / 2;
-	 *end = stepXmnt;
-	 return 1;
-      }
-      else {
-	 if ((v1[0] > 0.0) && (v1[1] < 0.0) && (v2[0] > 0.0) && (v2[1] > 0.0)) {
-	    *start = -stepXmnt;
-	    *end = (lenghtXmnt * stepXmnt) / 2;
-	    return 1;
-	 }
-	 else
-	    return 0;
-      }
-   }
-   else {
-      if (t2 < 0.0) {
-	 if (x1 < 0.0)
-	    x2 = -(lenghtXmnt * stepXmnt) / 2;
-	 else
-	    x2 = (lenghtXmnt * stepXmnt) / 2;
-      }
-
-      if (t1 < 0.0) {
-	 if (x2 < 0.0)
-	    x1 = -(lenghtXmnt * stepXmnt) / 2;
-	 else
-	    x1 = (lenghtXmnt * stepXmnt) / 2;
-      }
-   }
-
-   if (x1 > x2) {
-      tmp = x1;
-      x1 = x2;
-      x2 = tmp;
-   }
-
-   x1 -= stepXmnt;
-   if (x1 < -(lenghtXmnt * stepXmnt) / 2)
-      x1 = -(lenghtXmnt * stepXmnt) / 2;
-
-   x2 += stepXmnt;
-   if (x2 > (lenghtXmnt * stepXmnt) / 2)
-      x2 = (lenghtXmnt * stepXmnt) / 2;
-
-   *start = ((int) (x1 / stepXmnt)) * stepXmnt;
-   *end = ((int) (x2 / stepXmnt)) * stepXmnt;
-
-   return 1;
-}
-
-static void
-printstring(void *font, char *string)
-{
-   int len, i;
-
-   len = (int) strlen(string);
-   for (i = 0; i < len; i++)
-      glutBitmapCharacter(font, string[i]);
-}
-
-static void
-printhelp(void)
-{
-   glEnable(GL_BLEND);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-   glColor4f(0.0, 0.0, 0.0, 0.5);
-   glRecti(40, 40, 600, 440);
-   glDisable(GL_BLEND);
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(300, 420);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help");
-
-   glRasterPos2i(60, 390);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help");
-   glRasterPos2i(60, 360);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Toggle Textures");
-   glRasterPos2i(60, 330);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog");
-   glRasterPos2i(60, 300);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "p - Wire frame");
-   glRasterPos2i(60, 270);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Toggle Back face culling");
-   glRasterPos2i(60, 240);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate");
-   glRasterPos2i(60, 210);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity");
-   glRasterPos2i(60, 180);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity");
-
-   glRasterPos2i(60, 150);
-   if (joyavailable)
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "j - Toggle jostick control (Joystick control available)");
-   else
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "(No Joystick control available)");
-}
-
-static void
-drawterrain(void)
-{
-   int h, i, idx, ox, oy;
-   float j, k, start, end;
-
-   ox = (int) (obs[0] / stepXmnt);
-   oy = (int) (obs[2] / stepYmnt);
-   GlobalMnt = ((ox * TSCALE) & 255) + ((oy * TSCALE) & 255) * 256;
-
-   glPushMatrix();
-   glTranslatef((float) ox * stepXmnt, 0, (float) oy * stepYmnt);
-
-   for (h = 0, k = -(lenghtYmnt * stepYmnt) / 2; h < lenghtYmnt;
-	k += stepYmnt, h++) {
-      if (!clipstrip(k, &start, &end))
-	 continue;
-
-      glBegin(GL_TRIANGLE_STRIP);	/* I hope that the optimizer will be able to improve this code */
-      for (i = (int) (lenghtXmnt / 2 + start / stepXmnt), j = start; j <= end;
-	   j += stepXmnt, i++) {
-	 idx = (i * TSCALE + h * 256 * TSCALE + GlobalMnt) & 65535;
-	 glColor3fv(terraincolor[idx]);
-	 glTexCoord2f((ox + i) / 8.0, (oy + h) / 8.0);
-	 glVertex3f(j, terrain[idx], k);
-
-	 idx =
-	    (i * TSCALE + h * 256 * TSCALE + 256 * TSCALE +
-	     GlobalMnt) & 65535;
-	 glColor3fv(terraincolor[idx]);
-	 glTexCoord2f((ox + i) / 8.0, (oy + h + 1) / 8.0);
-	 glVertex3f(j, terrain[idx], k + stepYmnt);
-      }
-      glEnd();
-   }
-
-   glDisable(GL_CULL_FACE);
-   glDisable(GL_TEXTURE_2D);
-   glEnable(GL_BLEND);
-   glBegin(GL_QUADS);
-   glColor4f(0.1, 0.7, 1.0, 0.4);
-   glVertex3f(-(lenghtXmnt * stepXmnt) / 2.0, heightMnt * 0.6,
-	      -(lenghtYmnt * stepYmnt) / 2.0);
-   glVertex3f(-(lenghtXmnt * stepXmnt) / 2.0, heightMnt * 0.6,
-	      (lenghtYmnt * stepYmnt) / 2.0);
-   glVertex3f((lenghtXmnt * stepXmnt) / 2.0, heightMnt * 0.6,
-	      (lenghtYmnt * stepYmnt) / 2.0);
-   glVertex3f((lenghtXmnt * stepXmnt) / 2.0, heightMnt * 0.6,
-	      -(lenghtYmnt * stepYmnt) / 2.0);
-   glEnd();
-   glDisable(GL_BLEND);
-   if (bfcull)
-      glEnable(GL_CULL_FACE);
-   glEnable(GL_TEXTURE_2D);
-
-   glPopMatrix();
-
-}
-
-static void
-dojoy(void)
-{
-#ifdef WIN32
-   static UINT max[2] = { 0, 0 };
-   static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2];
-   MMRESULT res;
-   JOYINFO joy;
-
-   res = joyGetPos(JOYSTICKID1, &joy);
-
-   if (res == JOYERR_NOERROR) {
-      joyavailable = 1;
-
-      if (max[0] < joy.wXpos)
-	 max[0] = joy.wXpos;
-      if (min[0] > joy.wXpos)
-	 min[0] = joy.wXpos;
-      center[0] = (max[0] + min[0]) / 2;
-
-      if (max[1] < joy.wYpos)
-	 max[1] = joy.wYpos;
-      if (min[1] > joy.wYpos)
-	 min[1] = joy.wYpos;
-      center[1] = (max[1] + min[1]) / 2;
-
-      if (joyactive) {
-	 if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0]))
-	    alpha +=
-	       2.5 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
-	 if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
-	    beta += 2.5 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
-	 if (joy.wButtons & JOY_BUTTON1)
-	    v += 0.5;
-	 if (joy.wButtons & JOY_BUTTON2)
-	    v -= 0.5;
-      }
-   }
-   else
-      joyavailable = 0;
-#endif
-}
-
-static void
-drawscene(void)
-{
-   static char frbuf[80] = "";
-
-   dojoy();
-
-   glShadeModel(GL_SMOOTH);
-   glEnable(GL_DEPTH_TEST);
-
-   if (usetex)
-      glEnable(GL_TEXTURE_2D);
-   else
-      glDisable(GL_TEXTURE_2D);
-
-   if (fog)
-      glEnable(GL_FOG);
-   else
-      glDisable(GL_FOG);
-
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-   glPushMatrix();
-
-   calcposobs();
-   gluLookAt(obs[0], obs[1], obs[2],
-	     obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
-	     0.0, 1.0, 0.0);
-
-   drawterrain();
-   glPopMatrix();
-
-   glDisable(GL_TEXTURE_2D);
-   glDisable(GL_DEPTH_TEST);
-   glDisable(GL_FOG);
-   glShadeModel(GL_FLAT);
-
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(10, 10);
-   printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
-   glRasterPos2i(350, 470);
-   printstring(GLUT_BITMAP_HELVETICA_10,
-	       "Terrain V1.2 Written by David Bucciarelli (tech.hmw@plus.it)");
-   glRasterPos2i(434, 457);
-   printstring(GLUT_BITMAP_HELVETICA_10,
-	       "Based on a Mickael's demo (Skizo@Hol.Fr)");
-
-   if (help)
-      printhelp();
-
-   reshape(scrwidth, scrheight);
-
-   glutSwapBuffers();
-
-   Frames++;
-   {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      if (t - T0 >= 2000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         sprintf(frbuf, "Frame rate: %f", fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-static void
-key(unsigned char k, int x, int y)
-{
-   switch (k) {
-   case 27:
-      exit(0);
-      break;
-   case 'a':
-      v += 50.;
-      break;
-   case 'z':
-      v -= 50.;
-      break;
-   case 'p':
-      if (poutline) {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-	 poutline = 0;
-      }
-      else {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-	 poutline = 1;
-      }
-      break;
-   case 'j':
-      joyactive = (!joyactive);
-      break;
-   case 'h':
-      help = (!help);
-      break;
-   case 'f':
-      fog = (!fog);
-      break;
-   case 't':
-      usetex = (!usetex);
-      break;
-   case 'b':
-      if (bfcull) {
-	 glDisable(GL_CULL_FACE);
-	 bfcull = 0;
-      }
-      else {
-	 glEnable(GL_CULL_FACE);
-	 bfcull = 1;
-      }
-      break;
-#ifdef XMESA
-   case ' ':
-      XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-      fullscreen = (!fullscreen);
-      break;
-#endif
-   }
-}
-
-static void
-special(int k, int x, int y)
-{
-   switch (k) {
-   case GLUT_KEY_LEFT:
-      alpha += 2.0;
-      break;
-   case GLUT_KEY_RIGHT:
-      alpha -= 2.0;
-      break;
-   case GLUT_KEY_DOWN:
-      beta -= 2.0;
-      break;
-   case GLUT_KEY_UP:
-      beta += 2.0;
-      break;
-   }
-}
-
-static void
-calccolor(GLfloat height, GLfloat c[3])
-{
-   GLfloat color[4][3] = {
-      {1.0, 1.0, 1.0},
-      {0.0, 0.8, 0.0},
-      {1.0, 1.0, 0.3},
-      {0.0, 0.0, 0.8}
-   };
-   GLfloat fact;
-
-   height = height * (1.0 / 255.0);
-
-   if (height >= 0.9) {
-      c[0] = color[0][0];
-      c[1] = color[0][1];
-      c[2] = color[0][2];
-      return;
-   }
-
-   if ((height < 0.9) && (height >= 0.7)) {
-      fact = (height - 0.7) * 5.0;
-      c[0] = fact * color[0][0] + (1.0 - fact) * color[1][0];
-      c[1] = fact * color[0][1] + (1.0 - fact) * color[1][1];
-      c[2] = fact * color[0][2] + (1.0 - fact) * color[1][2];
-      return;
-   }
-
-   if ((height < 0.7) && (height >= 0.6)) {
-      fact = (height - 0.6) * 10.0;
-      c[0] = fact * color[1][0] + (1.0 - fact) * color[2][0];
-      c[1] = fact * color[1][1] + (1.0 - fact) * color[2][1];
-      c[2] = fact * color[1][2] + (1.0 - fact) * color[2][2];
-      return;
-   }
-
-   if ((height < 0.6) && (height >= 0.5)) {
-      fact = (height - 0.5) * 10.0;
-      c[0] = fact * color[2][0] + (1.0 - fact) * color[3][0];
-      c[1] = fact * color[2][1] + (1.0 - fact) * color[3][1];
-      c[2] = fact * color[2][2] + (1.0 - fact) * color[3][2];
-      return;
-   }
-
-   c[0] = color[3][0];
-   c[1] = color[3][1];
-   c[2] = color[3][2];
-}
-
-static void
-loadpic(void)
-{
-   GLubyte bufferter[256 * 256], terrainpic[256 * 256];
-   FILE *FilePic;
-   int i, tmp;
-   GLenum gluerr;
-
-   if ((FilePic = fopen("terrain.dat", "r")) == NULL) {
-      fprintf(stderr, "Error loading terrain.dat\n");
-      exit(-1);
-   }
-   fread(bufferter, 256 * 256, 1, FilePic);
-   fclose(FilePic);
-
-   for (i = 0; i < (256 * 256); i++) {
-      terrain[i] = (bufferter[i] * (heightMnt / 255.0f));
-      calccolor((GLfloat) bufferter[i], terraincolor[i]);
-      tmp = (((int) bufferter[i]) + 96);
-      terrainpic[i] = (tmp > 255) ? 255 : tmp;
-   }
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   if ((gluerr = gluBuild2DMipmaps(GL_TEXTURE_2D, 1, 256, 256, GL_LUMINANCE,
-				   GL_UNSIGNED_BYTE,
-				   (GLvoid *) (&terrainpic[0])))) {
-      fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-   glEnable(GL_TEXTURE_2D);
-}
-
-static void
-init(void)
-{
-   float fogcolor[4] = { 0.6, 0.7, 0.7, 1.0 };
-
-   glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]);
-   glClearDepth(1.0);
-   glDepthFunc(GL_LEQUAL);
-   glShadeModel(GL_SMOOTH);
-   glEnable(GL_DEPTH_TEST);
-   glEnable(GL_CULL_FACE);
-
-   glDisable(GL_BLEND);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-   glEnable(GL_FOG);
-   glFogi(GL_FOG_MODE, GL_EXP2);
-   glFogfv(GL_FOG_COLOR, fogcolor);
-   glFogf(GL_FOG_DENSITY, 0.0007);
-#ifdef FX
-   glHint(GL_FOG_HINT, GL_NICEST);
-#endif
-
-   reshape(scrwidth, scrheight);
-}
-
-
-int
-main(int ac, char **av)
-{
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WIDTH, HEIGHT);
-   glutInit(&ac, av);
-
-   glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
-
-   if (!(win = glutCreateWindow("Terrain"))) {
-      fprintf(stderr, "Error, couldn't open window\n");
-      return -1;
-   }
-
-   ModZMnt = 0.0f;
-   loadpic();
-
-   init();
-
-#ifndef FX
-   glDisable(GL_TEXTURE_2D);
-   usetex = 0;
-#endif
-
-   glutReshapeFunc(reshape);
-   glutDisplayFunc(drawscene);
-   glutKeyboardFunc(key);
-   glutSpecialFunc(special);
-   glutIdleFunc(drawscene);
-
-   glutMainLoop();
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/terrain.dat b/nx-X11/extras/Mesa_6.4.1/progs/demos/terrain.dat
deleted file mode 100644
index 2af385e9c..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/terrain.dat
+++ /dev/null
@@ -1 +0,0 @@
-�������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������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-\ No newline at end of file
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/tessdemo.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/tessdemo.c
deleted file mode 100644
index 26403eee0..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/tessdemo.c
+++ /dev/null
@@ -1,524 +0,0 @@
-
-/*
- * A demo of the GLU polygon tesselation functions written by Bogdan Sikorski.
- * Updated for GLU 1.3 tessellation by Gareth Hughes <gareth@valinux.com>
- */
-
-#include <GL/glut.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define MAX_POINTS	256
-#define MAX_CONTOURS	32
-#define MAX_TRIANGLES	256
-
-#ifndef GLCALLBACK
-#ifdef CALLBACK
-#define GLCALLBACK CALLBACK
-#else
-#define GLCALLBACK
-#endif
-#endif
-
-#ifdef GLU_VERSION_1_2
-
-typedef enum{ QUIT, TESSELATE, CLEAR } menu_entries;
-typedef enum{ DEFINE, TESSELATED } mode_type;
-
-static GLsizei		width, height;
-static GLuint		contour_cnt;
-static GLuint		triangle_cnt;
-
-static mode_type 	mode;
-static int		menu;
-
-static GLuint		list_start;
-
-static GLfloat		edge_color[3];
-
-static struct {
-   GLfloat	p[MAX_POINTS][2];
-   GLuint	point_cnt;
-} contours[MAX_CONTOURS];
-
-static struct {
-   GLsizei	no;
-   GLfloat	p[3][2];
-   GLclampf	color[3][3];
-} triangles[MAX_TRIANGLES];
-
-
-
-static void GLCALLBACK error_callback( GLenum err )
-{
-   int		len, i;
-   char const	*str;
-
-   glColor3f( 0.9, 0.9, 0.9 );
-   glRasterPos2i( 5, 5 );
-
-   str = (const char *) gluErrorString( err );
-   len = strlen( str );
-
-   for ( i = 0 ; i < len ; i++ ) {
-      glutBitmapCharacter( GLUT_BITMAP_9_BY_15, str[i] );
-   }
-}
-
-static void GLCALLBACK begin_callback( GLenum mode )
-{
-   /* Allow multiple triangles to be output inside the begin/end pair. */
-   triangle_cnt = 0;
-   triangles[triangle_cnt].no = 0;
-}
-
-static void GLCALLBACK edge_callback( GLenum flag )
-{
-   /* Persist the edge flag across triangles. */
-   if ( flag == GL_TRUE ) {
-      edge_color[0] = 1.0;
-      edge_color[1] = 1.0;
-      edge_color[2] = 0.5;
-   } else {
-      edge_color[0] = 1.0;
-      edge_color[1] = 0.0;
-      edge_color[2] = 0.0;
-   }
-}
-
-static void GLCALLBACK end_callback()
-{
-   GLuint	i;
-
-   glBegin( GL_LINES );
-
-   /* Output the three edges of each triangle as lines colored
-      according to their edge flag. */
-   for ( i = 0 ; i < triangle_cnt ; i++ ) {
-      glColor3f( triangles[i].color[0][0],
-		 triangles[i].color[0][1],
-		 triangles[i].color[0][2] );
-
-      glVertex2f( triangles[i].p[0][0], triangles[i].p[0][1] );
-      glVertex2f( triangles[i].p[1][0], triangles[i].p[1][1] );
-
-      glColor3f( triangles[i].color[1][0],
-		 triangles[i].color[1][1],
-		 triangles[i].color[1][2] );
-
-      glVertex2f( triangles[i].p[1][0], triangles[i].p[1][1] );
-      glVertex2f( triangles[i].p[2][0], triangles[i].p[2][1] );
-
-      glColor3f( triangles[i].color[2][0],
-		 triangles[i].color[2][1],
-		 triangles[i].color[2][2] );
-
-      glVertex2f( triangles[i].p[2][0], triangles[i].p[2][1] );
-      glVertex2f( triangles[i].p[0][0], triangles[i].p[0][1] );
-   }
-
-   glEnd();
-}
-
-static void GLCALLBACK vertex_callback( void *data )
-{
-   GLsizei	no;
-   GLfloat	*p;
-
-   p = (GLfloat *) data;
-   no = triangles[triangle_cnt].no;
-
-   triangles[triangle_cnt].p[no][0] = p[0];
-   triangles[triangle_cnt].p[no][1] = p[1];
-
-   triangles[triangle_cnt].color[no][0] = edge_color[0];
-   triangles[triangle_cnt].color[no][1] = edge_color[1];
-   triangles[triangle_cnt].color[no][2] = edge_color[2];
-
-   /* After every three vertices, initialize the next triangle. */
-   if ( ++(triangles[triangle_cnt].no) == 3 ) {
-      triangle_cnt++;
-      triangles[triangle_cnt].no = 0;
-   }
-}
-
-static void GLCALLBACK combine_callback( GLdouble coords[3],
-					 GLdouble *vertex_data[4],
-					 GLfloat weight[4], void **data )
-{
-   GLfloat	*vertex;
-
-   vertex = (GLfloat *) malloc( 2 * sizeof(GLfloat) );
-
-   vertex[0] = (GLfloat) coords[0];
-   vertex[1] = (GLfloat) coords[1];
-
-   *data = vertex;
-}
-
-
-static void set_screen_wh( GLsizei w, GLsizei h )
-{
-   width = w;
-   height = h;
-}
-
-typedef void (GLAPIENTRY *callback_t)();
-
-static void tesse( void )
-{
-   GLUtesselator	*tobj;
-   GLdouble		data[3];
-   GLuint		i, j, point_cnt;
-
-   list_start = glGenLists( 2 );
-
-   tobj = gluNewTess();
-
-   if ( tobj != NULL ) {
-      gluTessNormal( tobj, 0.0, 0.0, 1.0 );
-      gluTessCallback( tobj, GLU_TESS_BEGIN, (callback_t) glBegin );
-      gluTessCallback( tobj, GLU_TESS_VERTEX, (callback_t) glVertex2fv );
-      gluTessCallback( tobj, GLU_TESS_END, (callback_t) glEnd );
-      gluTessCallback( tobj, GLU_TESS_ERROR, (callback_t) error_callback );
-      gluTessCallback( tobj, GLU_TESS_COMBINE, (callback_t) combine_callback );
-
-      glNewList( list_start, GL_COMPILE );
-      gluBeginPolygon( tobj );
-
-      for ( j = 0 ; j <= contour_cnt ; j++ ) {
-	 point_cnt = contours[j].point_cnt;
-	 gluNextContour( tobj, GLU_UNKNOWN );
-
-	 for ( i = 0 ; i < point_cnt ; i++ ) {
-	    data[0] = (GLdouble)( contours[j].p[i][0] );
-	    data[1] = (GLdouble)( contours[j].p[i][1] );
-	    data[2] = 0.0;
-	    gluTessVertex( tobj, data, contours[j].p[i] );
-	 }
-      }
-
-      gluEndPolygon( tobj );
-      glEndList();
-
-      gluTessCallback( tobj, GLU_TESS_BEGIN, (callback_t) begin_callback );
-      gluTessCallback( tobj, GLU_TESS_VERTEX, (callback_t) vertex_callback );
-      gluTessCallback( tobj, GLU_TESS_END, (callback_t) end_callback );
-      gluTessCallback( tobj, GLU_TESS_EDGE_FLAG, (callback_t) edge_callback );
-
-      glNewList( list_start + 1, GL_COMPILE );
-      gluBeginPolygon( tobj );
-
-      for ( j = 0 ; j <= contour_cnt ; j++ ) {
-	 point_cnt = contours[j].point_cnt;
-	 gluNextContour( tobj, GLU_UNKNOWN );
-
-	 for ( i = 0 ; i < point_cnt ; i++ ) {
-	    data[0] = (GLdouble)( contours[j].p[i][0] );
-	    data[1] = (GLdouble)( contours[j].p[i][1] );
-	    data[2] = 0.0;
-	    gluTessVertex( tobj, data, contours[j].p[i] );
-	 }
-      }
-
-      gluEndPolygon( tobj );
-      glEndList();
-
-      gluDeleteTess( tobj );
-
-      glutMouseFunc( NULL );
-      mode = TESSELATED;
-   }
-}
-
-static void left_down( int x1, int y1 )
-{
-   GLfloat	P[2];
-   GLuint	point_cnt;
-
-   /* translate GLUT into GL coordinates */
-
-   P[0] = x1;
-   P[1] = height - y1;
-
-   point_cnt = contours[contour_cnt].point_cnt;
-
-   contours[contour_cnt].p[point_cnt][0] = P[0];
-   contours[contour_cnt].p[point_cnt][1] = P[1];
-
-   glBegin( GL_LINES );
-
-   if ( point_cnt ) {
-      glVertex2fv( contours[contour_cnt].p[point_cnt-1] );
-      glVertex2fv( P );
-   } else {
-      glVertex2fv( P );
-      glVertex2fv( P );
-   }
-
-   glEnd();
-   glFinish();
-
-   contours[contour_cnt].point_cnt++;
-}
-
-static void middle_down( int x1, int y1 )
-{
-   GLuint	point_cnt;
-   (void) x1;
-   (void) y1;
-
-   point_cnt = contours[contour_cnt].point_cnt;
-
-   if ( point_cnt > 2 ) {
-      glBegin( GL_LINES );
-
-      glVertex2fv( contours[contour_cnt].p[0] );
-      glVertex2fv( contours[contour_cnt].p[point_cnt-1] );
-
-      contours[contour_cnt].p[point_cnt][0] = -1;
-
-      glEnd();
-      glFinish();
-
-      contour_cnt++;
-      contours[contour_cnt].point_cnt = 0;
-   }
-}
-
-static void mouse_clicked( int button, int state, int x, int y )
-{
-   x -= x%10;
-   y -= y%10;
-
-   switch ( button ) {
-   case GLUT_LEFT_BUTTON:
-      if ( state == GLUT_DOWN ) {
-	 left_down( x, y );
-      }
-      break;
-   case GLUT_MIDDLE_BUTTON:
-      if ( state == GLUT_DOWN ) {
-	 middle_down( x, y );
-      }
-      break;
-   }
-}
-
-static void display( void )
-{
-   GLuint i,j;
-   GLsizei ii, jj;
-   GLuint point_cnt;
-
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   switch ( mode ) {
-   case DEFINE:
-      /* draw grid */
-      glColor3f( 0.6, 0.5, 0.5 );
-
-      glBegin( GL_LINES );
-
-      for ( ii = 0 ; ii < width ; ii += 10 ) {
-	 for ( jj = 0 ; jj < height ; jj += 10 ) {
-	    glVertex2i( 0, jj );
-	    glVertex2i( width, jj );
-	    glVertex2i( ii, height );
-	    glVertex2i( ii, 0 );
-	 }
-      }
-
-      glEnd();
-
-      glColor3f( 1.0, 1.0, 0.0 );
-
-      for ( i = 0 ; i <= contour_cnt ; i++ ) {
-	 point_cnt = contours[i].point_cnt;
-
-	 glBegin( GL_LINES );
-
-	 switch ( point_cnt ) {
-	 case 0:
-	    break;
-	 case 1:
-	    glVertex2fv( contours[i].p[0] );
-	    glVertex2fv( contours[i].p[0] );
-	    break;
-	 case 2:
-	    glVertex2fv( contours[i].p[0] );
-	    glVertex2fv( contours[i].p[1] );
-	    break;
-	 default:
-	    --point_cnt;
-	    for ( j = 0 ; j < point_cnt ; j++ ) {
-	       glVertex2fv( contours[i].p[j] );
-	       glVertex2fv( contours[i].p[j+1] );
-	    }
-	    if ( contours[i].p[j+1][0] == -1 ) {
-	       glVertex2fv( contours[i].p[0] );
-	       glVertex2fv( contours[i].p[j] );
-	    }
-	    break;
-	 }
-
-	 glEnd();
-      }
-
-      glFinish();
-      break;
-
-   case TESSELATED:
-      /* draw triangles */
-      glColor3f( 0.7, 0.7, 0.0 );
-      glCallList( list_start );
-
-      glLineWidth( 2.0 );
-      glCallList( list_start + 1 );
-      glLineWidth( 1.0 );
-
-      glFlush();
-      break;
-   }
-
-   glColor3f( 1.0, 1.0, 0.0 );
-}
-
-static void clear( void )
-{
-   contour_cnt = 0;
-   contours[0].point_cnt = 0;
-   triangle_cnt = 0;
-
-   glutMouseFunc( mouse_clicked );
-
-   mode = DEFINE;
-
-   glDeleteLists( list_start, 2 );
-   list_start = 0;
-}
-
-static void quit( void )
-{
-   exit( 0 );
-}
-
-static void menu_selected( int entry )
-{
-   switch ( entry ) {
-   case CLEAR:
-      clear();
-      break;
-   case TESSELATE:
-      tesse();
-      break;
-   case QUIT:
-      quit();
-      break;
-   }
-
-   glutPostRedisplay();
-}
-
-static void key_pressed( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-
-   switch ( key ) {
-   case 'c':
-   case 'C':
-      clear();
-      break;
-   case 't':
-   case 'T':
-      tesse();
-      break;
-   case 27:
-   case 'q':
-   case 'Q':
-      quit();
-      break;
-   }
-
-   glutPostRedisplay();
-}
-
-static void myinit( void )
-{
-   /* clear background to gray */
-   glClearColor( 0.4, 0.4, 0.4, 0.0 );
-   glShadeModel( GL_FLAT );
-   glPolygonMode( GL_FRONT, GL_FILL );
-
-   menu = glutCreateMenu( menu_selected );
-
-   glutAddMenuEntry( "clear", CLEAR );
-   glutAddMenuEntry( "tesselate", TESSELATE );
-   glutAddMenuEntry( "quit", QUIT );
-
-   glutAttachMenu( GLUT_RIGHT_BUTTON );
-
-   glutMouseFunc( mouse_clicked );
-   glutKeyboardFunc( key_pressed );
-
-   contour_cnt = 0;
-   mode = DEFINE;
-}
-
-static void reshape( GLsizei w, GLsizei h )
-{
-   glViewport( 0, 0, w, h );
-
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho( 0.0, (GLdouble)w, 0.0, (GLdouble)h, -1.0, 1.0 );
-
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-
-   set_screen_wh( w, h );
-}
-
-#endif
-
-
-static void usage( void )
-{
-   printf( "Use left mouse button to place vertices.\n" );
-   printf( "Press middle mouse button when done.\n" );
-   printf( "Select tesselate from the pop-up menu.\n" );
-}
-
-
-int main( int argc, char **argv )
-{
-   const char *version = (const char *) gluGetString( GLU_VERSION );
-   printf( "GLU version string: %s\n", version );
-   if ( strstr( version, "1.0" ) || strstr( version, "1.1" ) ) {
-      fprintf( stderr, "Sorry, this demo reqiures GLU 1.2 or later.\n" );
-      exit( 1 );
-   }
-
-   usage();
-
-   glutInit( &argc, argv );
-   glutInitDisplayMode( GLUT_SINGLE | GLUT_RGB );
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize( 400, 400 );
-   glutCreateWindow( argv[0] );
-
-   /* GH: Bit of a hack...
-    */
-#ifdef GLU_VERSION_1_2
-   myinit();
-
-   glutDisplayFunc( display );
-   glutReshapeFunc( reshape );
-
-   glutMainLoop();
-#endif
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/texcyl.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/texcyl.c
deleted file mode 100644
index c04d5004e..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/texcyl.c
+++ /dev/null
@@ -1,288 +0,0 @@
-
-/*
- * Textured cylinder demo: lighting, texturing, reflection mapping.
- *
- * Command line options:
- *    -info      print GL implementation information
- *
- *
- * Brian Paul  May 1997  This program is in the public domain.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <GL/glut.h>
-
-#include "readtex.h"
-
-#define TEXTURE_FILE "../images/reflect.rgb"
-
-#define LIT 1
-#define TEXTURED 2
-#define REFLECT 3
-#define ANIMATE 10
-#define POINT_FILTER 20
-#define LINEAR_FILTER 21
-#define QUIT 100
-
-static GLuint CylinderObj = 0;
-static GLboolean Animate = GL_TRUE;
-
-static GLfloat Xrot = 0.0, Yrot = 0.0, Zrot = 0.0;
-static GLfloat DXrot = 50.0, DYrot = 125.0;
-
-/* performance info */
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-
-static void Idle( void )
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-
-   if (Animate) {
-      Xrot += DXrot * dt;
-      Yrot += DYrot * dt;
-      glutPostRedisplay();
-   }
-}
-
-
-static void Display( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   glPushMatrix();
-   glRotatef(Xrot, 1.0, 0.0, 0.0);
-   glRotatef(Yrot, 0.0, 1.0, 0.0);
-   glRotatef(Zrot, 0.0, 0.0, 1.0);
-   glScalef(5.0, 5.0, 5.0);
-   glCallList(CylinderObj);
-
-   glPopMatrix();
-
-   glutSwapBuffers();
-
-   if (Animate) {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      Frames++;
-      if (t - T0 >= 5000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-
-static void Reshape( int width, int height )
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glFrustum( -1.0, 1.0, -1.0, 1.0, 10.0, 100.0 );
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -70.0 );
-}
-
-
-static void SetMode(GLuint m)
-{
-   /* disable everything */
-   glDisable(GL_LIGHTING);
-   glDisable(GL_TEXTURE_2D);
-   glDisable(GL_TEXTURE_GEN_S);
-   glDisable(GL_TEXTURE_GEN_T);
-
-   /* enable what's needed */
-   if (m==LIT) {
-      glEnable(GL_LIGHTING);
-   }
-   else if (m==TEXTURED) {
-      glEnable(GL_TEXTURE_2D);
-   }
-   else if (m==REFLECT) {
-      glEnable(GL_TEXTURE_2D);
-      glEnable(GL_TEXTURE_GEN_S);
-      glEnable(GL_TEXTURE_GEN_T);
-   }
-}
-
-
-static void ModeMenu(int entry)
-{
-   if (entry==ANIMATE) {
-      Animate = !Animate;
-      if (Animate)
-         glutIdleFunc(Idle);
-      else
-         glutIdleFunc(NULL);
-   }
-   else if (entry==POINT_FILTER) {
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-   }
-   else if (entry==LINEAR_FILTER) {
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   }
-   else if (entry==QUIT) {
-      exit(0);
-   }
-   else {
-      SetMode(entry);
-   }
-   glutPostRedisplay();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case ' ':
-      Animate = !Animate;
-      if (Animate)
-         glutIdleFunc(Idle);
-      else
-         glutIdleFunc(NULL);
-      break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void SpecialKey( int key, int x, int y )
-{
-   float step = 3.0;
-   (void) x;
-   (void) y;
-
-   switch (key) {
-      case GLUT_KEY_UP:
-         Xrot += step;
-         break;
-      case GLUT_KEY_DOWN:
-         Xrot -= step;
-         break;
-      case GLUT_KEY_LEFT:
-         Yrot += step;
-         break;
-      case GLUT_KEY_RIGHT:
-         Yrot -= step;
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void Init( int argc, char *argv[] )
-{
-   GLUquadricObj *q = gluNewQuadric();
-   CylinderObj = glGenLists(1);
-   glNewList(CylinderObj, GL_COMPILE);
-
-   glTranslatef(0.0, 0.0, -1.0);
-
-   /* cylinder */
-   gluQuadricNormals(q, GL_SMOOTH);
-   gluQuadricTexture(q, GL_TRUE);
-   gluCylinder(q, 0.6, 0.6, 2.0, 24, 1);
-
-   /* end cap */
-   glTranslatef(0.0, 0.0, 2.0);
-   gluDisk(q, 0.0, 0.6, 24, 1);
-
-   /* other end cap */
-   glTranslatef(0.0, 0.0, -2.0);
-   gluQuadricOrientation(q, GLU_INSIDE);
-   gluDisk(q, 0.0, 0.6, 24, 1);
-
-   glEndList();
-   gluDeleteQuadric(q);
-
-   /* lighting */
-   glEnable(GL_LIGHTING);
-   {
-      GLfloat gray[4] = {0.2, 0.2, 0.2, 1.0};
-      GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
-      GLfloat teal[4] = { 0.0, 1.0, 0.8, 1.0 };
-      glMaterialfv(GL_FRONT, GL_DIFFUSE, teal);
-      glLightfv(GL_LIGHT0, GL_AMBIENT, gray);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE, white);
-      glEnable(GL_LIGHT0);
-   }
-
-   /* fitering = nearest, initially */
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-   glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
-
-   glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-   glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-
-   if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) {
-      printf("Error: couldn't load texture image\n");
-      exit(1);
-   }
-
-   glEnable(GL_CULL_FACE);  /* don't need Z testing for convex objects */
-
-   SetMode(LIT);
-
-   if (argc > 1 && strcmp(argv[1], "-info")==0) {
-      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
-      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
-      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
-      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
-   }
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit( &argc, argv );
-   glutInitWindowSize( 400, 400 );
-   glutInitWindowPosition( 0, 0 );
-
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-
-   glutCreateWindow(argv[0] );
-
-   Init(argc, argv);
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   glutIdleFunc( Idle );
-
-   glutCreateMenu(ModeMenu);
-   glutAddMenuEntry("Lit", LIT);
-   glutAddMenuEntry("Textured", TEXTURED);
-   glutAddMenuEntry("Reflect", REFLECT);
-   glutAddMenuEntry("Point Filtered", POINT_FILTER);
-   glutAddMenuEntry("Linear Filtered", LINEAR_FILTER);
-   glutAddMenuEntry("Toggle Animation", ANIMATE);
-   glutAddMenuEntry("Quit", QUIT);
-   glutAttachMenu(GLUT_RIGHT_BUTTON);
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/texdown.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/texdown.c
deleted file mode 100644
index 79525a039..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/texdown.c
+++ /dev/null
@@ -1,403 +0,0 @@
-
-/*
- * Copyright (C) 1999  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.
- */
-
-
-/*
- * texdown
- *
- * Measure texture download speed.
- * Use keyboard to change texture size, format, datatype, scale/bias,
- * subimageload, etc.
- *
- * Brian Paul  28 January 2000
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glut.h>
-
-
-static GLsizei MaxSize = 1024;
-static GLsizei TexWidth = 256, TexHeight = 256, TexBorder = 0;
-static GLboolean ScaleAndBias = GL_FALSE;
-static GLboolean SubImage = GL_FALSE;
-static GLdouble DownloadRate = 0.0;  /* texels/sec */
-
-static GLuint Mode = 0;
-
-
-struct FormatRec {
-   GLenum Format;
-   GLenum Type;
-   GLenum IntFormat;
-   GLint TexelSize;
-};
-
-
-static const struct FormatRec FormatTable[] = {
-  /* Format   Type                         IntFormat   TexelSize */
-   { GL_BGRA, GL_UNSIGNED_BYTE,            GL_RGBA,        4    },
-   { GL_RGB,  GL_UNSIGNED_BYTE,            GL_RGB,         3    },
-   { GL_RGBA, GL_UNSIGNED_BYTE,            GL_RGBA,        4    },
-   { GL_RGBA, GL_UNSIGNED_BYTE,            GL_RGB,         4    },
-   { GL_RGB,  GL_UNSIGNED_SHORT_5_6_5,     GL_RGB,         2    },
-   { GL_LUMINANCE, GL_UNSIGNED_BYTE,       GL_LUMINANCE,   1    },
-   { GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE_ALPHA,   2    },
-   { GL_ALPHA, GL_UNSIGNED_BYTE,           GL_ALPHA,       1    },
-};
-static GLint Format;
-
-#define NUM_FORMATS (sizeof(FormatTable)/sizeof(FormatTable[0]))
-
-static int
-BytesPerTexel(GLint format)
-{
-   return FormatTable[format].TexelSize;
-}
-
-
-static const char *
-FormatStr(GLenum format)
-{
-   switch (format) {
-      case GL_RGB:
-         return "GL_RGB";
-      case GL_RGBA:
-         return "GL_RGBA";
-      case GL_BGRA:
-         return "GL_BGRA";
-      case GL_LUMINANCE:
-         return "GL_LUMINANCE";
-      case GL_LUMINANCE_ALPHA:
-         return "GL_LUMINANCE_ALPHA";
-      case GL_ALPHA:
-         return "GL_ALPHA";
-      default:
-         return "";
-   }
-}
-
-
-static const char *
-TypeStr(GLenum type)
-{
-   switch (type) {
-      case GL_UNSIGNED_BYTE:
-         return "GL_UNSIGNED_BYTE";
-      case GL_UNSIGNED_SHORT:
-         return "GL_UNSIGNED_SHORT";
-      case GL_UNSIGNED_SHORT_5_6_5:
-         return "GL_UNSIGNED_SHORT_5_6_5";
-      case GL_UNSIGNED_SHORT_5_6_5_REV:
-         return "GL_UNSIGNED_SHORT_5_6_5_REV";
-      default:
-         return "";
-   }
-}
-
-
-static void
-MeasureDownloadRate(void)
-{
-   const int w = TexWidth + 2 * TexBorder;
-   const int h = TexHeight + 2 * TexBorder;
-   const int bytes = w * h * BytesPerTexel(Format);
-   GLubyte *texImage, *getImage;
-   GLdouble t0, t1, time;
-   int count;
-   int i;
-
-   texImage = (GLubyte *) malloc(bytes);
-   getImage = (GLubyte *) malloc(bytes);
-   if (!texImage || !getImage) {
-      DownloadRate = 0.0;
-      return;
-   }
-
-   for (i = 0; i < bytes; i++) {
-      texImage[i] = i & 0xff;
-   }
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glPixelStorei(GL_PACK_ALIGNMENT, 1);
-
-   if (ScaleAndBias) {
-      glPixelTransferf(GL_RED_SCALE, 0.5);
-      glPixelTransferf(GL_GREEN_SCALE, 0.5);
-      glPixelTransferf(GL_BLUE_SCALE, 0.5);
-      glPixelTransferf(GL_RED_BIAS, 0.5);
-      glPixelTransferf(GL_GREEN_BIAS, 0.5);
-      glPixelTransferf(GL_BLUE_BIAS, 0.5);
-   }
-   else {
-      glPixelTransferf(GL_RED_SCALE, 1.0);
-      glPixelTransferf(GL_GREEN_SCALE, 1.0);
-      glPixelTransferf(GL_BLUE_SCALE, 1.0);
-      glPixelTransferf(GL_RED_BIAS, 0.0);
-      glPixelTransferf(GL_GREEN_BIAS, 0.0);
-      glPixelTransferf(GL_BLUE_BIAS, 0.0);
-   }
-
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   glEnable(GL_TEXTURE_2D);
-
-   count = 0;
-   t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
-   do {
-      if (SubImage && count > 0) {
-         glTexSubImage2D(GL_TEXTURE_2D, 0, -TexBorder, -TexBorder, w, h,
-                         FormatTable[Format].Format,
-                         FormatTable[Format].Type, texImage);
-      }
-      else {
-         glTexImage2D(GL_TEXTURE_2D, 0,
-                      FormatTable[Format].IntFormat, w, h, TexBorder,
-                      FormatTable[Format].Format,
-                      FormatTable[Format].Type, texImage);
-      }
-
-      /* draw a tiny polygon to force texture into texram */
-      glBegin(GL_TRIANGLES);
-      glTexCoord2f(0, 0);     glVertex2f(1, 1);
-      glTexCoord2f(1, 0);     glVertex2f(3, 1);
-      glTexCoord2f(0.5, 1);   glVertex2f(2, 3);
-      glEnd();
-
-      t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
-      time = t1 - t0;
-      count++;
-   } while (time < 3.0);
-
-   glDisable(GL_TEXTURE_2D);
-
-   printf("w*h=%d  count=%d  time=%f\n", w*h, count, time);
-   DownloadRate = w * h * count / time;
-
-#if 0
-   if (!ScaleAndBias) {
-      /* verify texture readback */
-      glGetTexImage(GL_TEXTURE_2D, 0,
-                    FormatTable[Format].Format,
-                    FormatTable[Format].Type, getImage);
-      for (i = 0; i < w * h; i++) {
-         if (texImage[i] != getImage[i]) {
-            printf("[%d] %d != %d\n", i, texImage[i], getImage[i]);
-         }
-      }
-   }
-#endif
-
-   free(texImage);
-   free(getImage);
-
-   {
-      GLint err = glGetError();
-      if (err)
-         printf("GL error %d\n", err);
-   }
-}
-
-
-static void
-PrintString(const char *s)
-{
-   while (*s) {
-      glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
-      s++;
-   }
-}
-
-
-static void
-Display(void)
-{
-   const int w = TexWidth + 2 * TexBorder;
-   const int h = TexHeight + 2 * TexBorder;
-   char s[1000];
-
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   glRasterPos2i(10, 80);
-   sprintf(s, "Texture size[cursor]: %d x %d  Border[b]: %d", w, h, TexBorder);
-   PrintString(s);
-
-   glRasterPos2i(10, 65);
-   sprintf(s, "Format[f]: %s  Type: %s  IntFormat: %s",
-           FormatStr(FormatTable[Format].Format),
-           TypeStr(  FormatTable[Format].Type),
-           FormatStr(FormatTable[Format].IntFormat));
-   PrintString(s);
-
-   glRasterPos2i(10, 50);
-   sprintf(s, "Pixel Scale&Bias[p]: %s   TexSubImage[s]: %s",
-           ScaleAndBias ? "Yes" : "No",
-           SubImage ? "Yes" : "No");
-   PrintString(s);
-
-   if (Mode == 0) {
-      glRasterPos2i(200, 10);
-      sprintf(s, "...Measuring...");
-      PrintString(s);
-      glutSwapBuffers();
-      glutPostRedisplay();
-      Mode++;
-   }
-   else if (Mode == 1) {
-      MeasureDownloadRate();
-      glutPostRedisplay();
-      Mode++;
-   }
-   else {
-      /* show results */
-      glRasterPos2i(10, 10);
-      sprintf(s, "Download rate: %g Mtexels/second  %g MB/second",
-              DownloadRate / 1000000.0,
-              DownloadRate * BytesPerTexel(Format) / 1000000.0);
-      PrintString(s);
-      {
-         GLint r, g, b, a, l, i;
-         glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_RED_SIZE, &r);
-         glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_GREEN_SIZE, &g);
-         glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_BLUE_SIZE, &b);
-         glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_ALPHA_SIZE, &a);
-         glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_LUMINANCE_SIZE, &l);
-         glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTENSITY_SIZE, &i);
-         sprintf(s, "TexelBits: R=%d G=%d B=%d A=%d L=%d I=%d", r, g, b, a, l, i);
-         glRasterPos2i(10, 25);
-         PrintString(s);
-      }
-
-      glutSwapBuffers();
-   }
-}
-
-
-static void
-Reshape(int width, int height)
-{
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho(0, width, 0, height, -1, 1);
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-}
-
-
-
-static void
-Key(unsigned char key, int x, int y)
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case ' ':
-         Mode = 0;
-         break;
-      case 'b':
-         /* toggle border */
-         TexBorder = 1 - TexBorder;
-         Mode = 0;
-         break;
-      case 'f':
-         /* change format */
-         Format = (Format + 1) % NUM_FORMATS;
-         Mode = 0;
-         break;
-      case 'F':
-         /* change format */
-         Format = (Format - 1) % NUM_FORMATS;
-         Mode = 0;
-         break;
-      case 'p':
-         /* toggle border */
-         ScaleAndBias = !ScaleAndBias;
-         Mode = 0;
-         break;
-      case 's':
-         SubImage = !SubImage;
-         Mode = 0;
-         break;
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void
-SpecialKey(int key, int x, int y)
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case GLUT_KEY_UP:
-         if (TexHeight < MaxSize)
-            TexHeight *= 2;
-         break;
-      case GLUT_KEY_DOWN:
-         if (TexHeight > 1)
-            TexHeight /= 2;
-         break;
-      case GLUT_KEY_LEFT:
-         if (TexWidth > 1)
-            TexWidth /= 2;
-         break;
-      case GLUT_KEY_RIGHT:
-         if (TexWidth < MaxSize)
-            TexWidth *= 2;
-         break;
-   }
-   Mode = 0;
-   glutPostRedisplay();
-}
-
-
-static void
-Init(void)
-{
-   printf("GL_VENDOR = %s\n", (const char *) glGetString(GL_VENDOR));
-   printf("GL_VERSION = %s\n", (const char *) glGetString(GL_VERSION));
-   printf("GL_RENDERER = %s\n", (const char *) glGetString(GL_RENDERER));
-}
-
-
-int
-main(int argc, char *argv[])
-{
-   glutInit( &argc, argv );
-   glutInitWindowPosition( 0, 0 );
-   glutInitWindowSize( 600, 100 );
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-   glutCreateWindow(argv[0]);
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutSpecialFunc( SpecialKey );
-   glutDisplayFunc( Display );
-   Init();
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/texenv.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/texenv.c
deleted file mode 100644
index 590867b49..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/texenv.c
+++ /dev/null
@@ -1,815 +0,0 @@
-
-/* Copyright (c) Mark J. Kilgard, 1994. */
-
-/**
- * (c) Copyright 1993, Silicon Graphics, Inc.
- * ALL RIGHTS RESERVED
- * Permission to use, copy, modify, and distribute this software for
- * any purpose and without fee is hereby granted, provided that the above
- * copyright notice appear in all copies and that both the copyright notice
- * and this permission notice appear in supporting documentation, and that
- * the name of Silicon Graphics, Inc. not be used in advertising
- * or publicity pertaining to distribution of the software without specific,
- * written prior permission.
- *
- * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
- * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
- * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
- * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
- * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
- * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
- * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
- * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
- * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
- * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * US Government Users Restricted Rights
- * Use, duplication, or disclosure by the Government is subject to
- * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
- * (c)(1)(ii) of the Rights in Technical Data and Computer Software
- * clause at DFARS 252.227-7013 and/or in similar or successor
- * clauses in the FAR or the DOD or NASA FAR Supplement.
- * Unpublished-- rights reserved under the copyright laws of the
- * United States.  Contractor/manufacturer is Silicon Graphics,
- * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
- *
- * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
- */
-
-/*
- * Demonstrates texture environment modes and internal image formats.
- */
-
-/*
- * Hacked on, updated by Gareth Hughes <gareth@valinux.com>
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <GL/glut.h>
-
-#undef max
-#undef min
-#define max( a, b )	((a) >= (b) ? (a) : (b))
-#define min( a, b )	((a) <= (b) ? (a) : (b))
-
-GLfloat lightCheck[4] = { 0.7, 0.7, 0.7, 1.0 };
-GLfloat darkCheck[4] = { 0.3, 0.3, 0.3, 1.0 };
-
-GLfloat labelColor0[4] = { 1.0, 1.0, 1.0, 1.0 };
-GLfloat labelColor1[4] = { 1.0, 1.0, 0.4, 1.0 };
-GLfloat *labelInfoColor = labelColor0;
-GLfloat labelLevelColor0[4] = { 0.8, 0.8, 0.1, 1.0 };
-GLfloat labelLevelColor1[4] = { 0.0, 0.0, 0.0, 1.0 };
-
-GLboolean doubleBuffered = GL_TRUE;
-GLboolean drawBackground = GL_FALSE;
-GLboolean drawBlended = GL_TRUE;
-GLboolean drawSmooth = GL_FALSE;
-GLboolean drawTextured = GL_TRUE;
-GLboolean displayLevelInfo = GL_FALSE;
-
-int textureWidth = 64;
-int textureHeight = 64;
-
-int winWidth = 580, winHeight = 720;
-
-struct formatInfo {
-   GLenum	baseFormat;
-   GLenum	internalFormat;
-   char		*name;
-};
-
-#define NUM_LUMINANCE_FORMATS	(sizeof(luminanceFormats) / sizeof(luminanceFormats[0]))
-struct formatInfo luminanceFormats[] =
-{
-   { GL_LUMINANCE, GL_LUMINANCE, "LUMINANCE" },
-   { GL_LUMINANCE, GL_LUMINANCE4, "LUMINANCE4" },
-   { GL_LUMINANCE, GL_LUMINANCE8, "LUMINANCE8" },
-   { GL_LUMINANCE, GL_LUMINANCE12, "LUMINANCE12" },
-   { GL_LUMINANCE, GL_LUMINANCE16, "LUMINANCE16" },
-};
-
-#define NUM_ALPHA_FORMATS	(sizeof(alphaFormats) / sizeof(alphaFormats[0]))
-struct formatInfo alphaFormats[] =
-{
-   { GL_ALPHA, GL_ALPHA, "ALPHA" },
-   { GL_ALPHA, GL_ALPHA4, "ALPHA4" },
-   { GL_ALPHA, GL_ALPHA8, "ALPHA8" },
-   { GL_ALPHA, GL_ALPHA12, "ALPHA12" },
-   { GL_ALPHA, GL_ALPHA16, "ALPHA16" },
-};
-
-#define NUM_INTENSITY_FORMATS	(sizeof(intensityFormats) / sizeof(intensityFormats[0]))
-struct formatInfo intensityFormats[] =
-{
-   { GL_INTENSITY, GL_INTENSITY, "INTENSITY" },
-   { GL_INTENSITY, GL_INTENSITY4, "INTENSITY4" },
-   { GL_INTENSITY, GL_INTENSITY8, "INTENSITY8" },
-   { GL_INTENSITY, GL_INTENSITY12, "INTENSITY12" },
-   { GL_INTENSITY, GL_INTENSITY16, "INTENSITY16" },
-};
-
-#define NUM_LUMINANCE_ALPHA_FORMATS	(sizeof(luminanceAlphaFormats) / sizeof(luminanceAlphaFormats[0]))
-struct formatInfo luminanceAlphaFormats[] =
-{
-   { GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, "LUMINANCE_ALPHA" },
-   { GL_LUMINANCE_ALPHA, GL_LUMINANCE4_ALPHA4, "LUMINANCE4_ALPHA4" },
-   { GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, "LUMINANCE6_ALPHA2" },
-   { GL_LUMINANCE_ALPHA, GL_LUMINANCE8_ALPHA8, "LUMINANCE8_ALPHA8" },
-   { GL_LUMINANCE_ALPHA, GL_LUMINANCE12_ALPHA4, "LUMINANCE12_ALPHA4" },
-   { GL_LUMINANCE_ALPHA, GL_LUMINANCE12_ALPHA12, "LUMINANCE12_ALPHA12" },
-   { GL_LUMINANCE_ALPHA, GL_LUMINANCE16_ALPHA16, "LUMINANCE16_ALPHA16" },
-};
-
-#define NUM_RGB_FORMATS		(sizeof(rgbFormats) / sizeof(rgbFormats[0]))
-struct formatInfo rgbFormats[] =
-{
-   { GL_RGB, GL_RGB, "RGB" },
-   { GL_RGB, GL_R3_G3_B2, "R3_G3_B2" },
-   { GL_RGB, GL_RGB4, "RGB4" },
-   { GL_RGB, GL_RGB5, "RGB5" },
-   { GL_RGB, GL_RGB8, "RGB8" },
-   { GL_RGB, GL_RGB10, "RGB10" },
-   { GL_RGB, GL_RGB12, "RGB12" },
-   { GL_RGB, GL_RGB16, "RGB16" },
-};
-
-#define NUM_RGBA_FORMATS	(sizeof(rgbaFormats) / sizeof(rgbaFormats[0]))
-struct formatInfo rgbaFormats[] =
-{
-   { GL_RGBA, GL_RGBA, "RGBA" },
-   { GL_RGBA, GL_RGBA2, "RGBA2" },
-   { GL_RGBA, GL_RGBA4, "RGBA4" },
-   { GL_RGBA, GL_RGB5_A1, "RGB5_A1" },
-   { GL_RGBA, GL_RGBA8, "RGBA8" },
-   { GL_RGBA, GL_RGB10_A2, "RGB10_A2" },
-   { GL_RGBA, GL_RGBA12, "RGBA12" },
-   { GL_RGBA, GL_RGBA16, "RGBA16" },
-};
-
-struct baseFormatInfo {
-   struct	formatInfo *format;
-   int		current, number;
-};
-
-#define NUM_BASE_FORMATS	(sizeof(baseFormats) / sizeof(baseFormats[0]))
-int baseFormat;
-struct baseFormatInfo baseFormats[] =
-{
-   { luminanceFormats, 0, NUM_LUMINANCE_FORMATS },
-   { alphaFormats, 0, NUM_ALPHA_FORMATS },
-   { intensityFormats, 0, NUM_INTENSITY_FORMATS },
-   { luminanceAlphaFormats, 0, NUM_LUMINANCE_ALPHA_FORMATS },
-   { rgbFormats, 0, NUM_RGB_FORMATS },
-   { rgbaFormats, 0, NUM_RGBA_FORMATS },
-};
-
-#define NUM_ENV_COLORS		(sizeof(envColors) / sizeof(envColors[0]))
-int envColor = 0;
-GLfloat envColors[][4] =
-{
-   { 0.0, 0.0, 0.0, 1.0 },
-   { 1.0, 0.0, 0.0, 1.0 },
-   { 0.0, 1.0, 0.0, 1.0 },
-   { 0.0, 0.0, 1.0, 1.0 },
-   { 1.0, 1.0, 1.0, 1.0 },
-};
-
-struct envModeInfo {
-   GLenum	mode;
-   char		*name;
-};
-
-/* allow for run-time check for GL_EXT_texture_env_add */
-int NUM_ENV_MODES = 5;
-struct envModeInfo envModes[] =
-{
-   { GL_REPLACE, "REPLACE" },
-   { GL_MODULATE, "MODULATE" },
-   { GL_BLEND, "BLEND" },
-   { GL_DECAL, "DECAL" },
-#if GL_EXT_texture_env_add
-   { GL_ADD, "ADD" },
-#endif
-};
-
-static void checkErrors( void )
-{
-   GLenum error;
-
-   while ( (error = glGetError()) != GL_NO_ERROR ) {
-      fprintf( stderr, "Error: %s\n", (char *) gluErrorString( error ) );
-   }
-}
-
-static void drawString( const char *string, GLfloat x, GLfloat y,
-                        const GLfloat color[4] )
-{
-   glColor4fv( color );
-   glRasterPos2f( x, y );
-
-   while ( *string ) {
-      glutBitmapCharacter( GLUT_BITMAP_TIMES_ROMAN_10, *string );
-      string++;
-   }
-}
-
-static void drawStringOutline( const char *string, GLfloat x, GLfloat y,
-			       const GLfloat color[4],
-                               const GLfloat outline[4] )
-{
-   drawString( string, x - 1, y, outline );
-   drawString( string, x + 1, y, outline );
-   drawString( string, x, y - 1, outline );
-   drawString( string, x, y + 1, outline );
-   drawString( string, x, y, color );
-}
-
-static void begin2D( int width, int height )
-{
-   glMatrixMode( GL_PROJECTION );
-
-   glPushMatrix();
-   glLoadIdentity();
-
-   glOrtho( 0, width, 0, height, -1, 1 );
-   glMatrixMode( GL_MODELVIEW );
-
-   glPushMatrix();
-   glLoadIdentity();
-}
-
-static void end2D( void )
-{
-   glMatrixMode( GL_PROJECTION );
-   glPopMatrix();
-   glMatrixMode( GL_MODELVIEW );
-   glPopMatrix();
-}
-
-static void initialize( void )
-{
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-
-   glOrtho( -1.5, 1.5, -1.5, 1.5, -1.5, 1.5 );
-
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-
-   glShadeModel( GL_FLAT );
-}
-
-/* ARGSUSED1 */
-static void keyboard( unsigned char c, int x, int y )
-{
-   switch ( c ) {
-   case 'c':
-      envColor++;
-      envColor = envColor % (int) NUM_ENV_COLORS;
-      break;
-   case 'g':
-      drawBackground = !drawBackground;
-      break;
-   case 'b':
-      drawBlended = !drawBlended;
-      break;
-   case 's':
-      drawSmooth = !drawSmooth;
-      break;
-   case 't':
-      drawTextured = !drawTextured;
-      break;
-   case 'i':
-      displayLevelInfo = !displayLevelInfo;
-      break;
-   case 27:             /* Escape key should force exit. */
-      exit(0);
-      break;
-   default:
-      break;
-   }
-   glutPostRedisplay();
-}
-
-/* ARGSUSED1 */
-static void special( int key, int x, int y )
-{
-   switch ( key ) {
-   case GLUT_KEY_DOWN:
-      if ( ++baseFormat > NUM_BASE_FORMATS - 1 ) {
-	 baseFormat = 0;
-      }
-      break;
-   case GLUT_KEY_UP:
-      if ( --baseFormat < 0 ) {
-	 baseFormat = NUM_BASE_FORMATS - 1;
-      }
-      break;
-   case GLUT_KEY_LEFT:
-      --baseFormats[baseFormat].current;
-      if ( baseFormats[baseFormat].current < 0 ) {
-	 baseFormats[baseFormat].current = baseFormats[baseFormat].number - 1;
-      }
-      break;
-   case GLUT_KEY_RIGHT:
-      ++baseFormats[baseFormat].current;
-      if ( baseFormats[baseFormat].current > baseFormats[baseFormat].number - 1 ) {
-	 baseFormats[baseFormat].current = 0;
-      }
-      break;
-   default:
-      break;
-   }
-   glutPostRedisplay();
-}
-
-static void
-reshape( int w, int h )
-{
-   winWidth = w;
-   winHeight = h;
-   /* No need to call glViewPort here since "draw" calls it! */
-}
-
-static void loadTexture( int width, int height,
-                         const struct formatInfo *format )
-{
-   int		luminanceSize = 0;
-   int		alphaSize = 0;
-   int		rgbSize = 0;
-   GLenum	textureFormat;
-   GLubyte	*texImage, *p;
-   int		elementsPerGroup, elementSize, groupSize, rowSize;
-   int		i, j;
-
-   switch ( format->baseFormat ) {
-   case GL_LUMINANCE:
-      luminanceSize = 1;
-      textureFormat = GL_LUMINANCE;
-      break;
-   case GL_INTENSITY:
-      luminanceSize = 1;
-      /* Note: format=GL_INTENSITY for glTexImage is not legal */
-      textureFormat = GL_LUMINANCE;
-      break;
-   case GL_ALPHA:
-      alphaSize = 1;
-      textureFormat = GL_ALPHA;
-      break;
-   case GL_LUMINANCE_ALPHA:
-      luminanceSize = 1;
-      alphaSize = 1;
-      textureFormat = GL_LUMINANCE_ALPHA;
-      break;
-   case GL_RGB:
-      rgbSize = 3;
-      textureFormat = GL_RGB;
-      break;
-   case GL_RGBA:
-      rgbSize = 3;
-      alphaSize = 1;
-      textureFormat = GL_RGBA;
-      break;
-   default:
-      fprintf(stderr, "bad internal format info\n");
-      return;
-   }
-
-   elementsPerGroup = luminanceSize + alphaSize + rgbSize;
-   elementSize = sizeof(GLubyte);
-   groupSize = elementsPerGroup * elementSize;
-   rowSize = width * groupSize;
-
-   if ( (texImage = (GLubyte *) malloc( height * rowSize ) ) == NULL ) {
-      fprintf( stderr, "texture malloc failed\n" );
-      return;
-   }
-
-   for ( i = 0 ; i < height ; i++ )
-   {
-      p = texImage + i * rowSize;
-
-      for ( j = 0 ; j < width ; j++ )
-      {
-	 if ( luminanceSize > 0 )
-	 {
-	    /**
-	     ** +-----+-----+
-	     ** |     |     |
-	     ** |  W  | LG  |
-	     ** |     |     |
-	     ** +-----+-----+
-	     ** |     |     |
-	     ** | DG  |  B  |
-	     ** |     |     |
-	     ** +-----+-----+
-	     **/
-	    if ( i > height / 2 ) {
-	       if ( j < width / 2 ) {
-		  p[0] = 0xff;
-	       } else {
-		  p[0] = 0xaa;
-	       }
-	    } else {
-	       if ( j < width / 2 ) {
-		  p[0] = 0x55;
-	       } else {
-		  p[0] = 0x00;
-	       }
-	    }
-	    p += elementSize;
-	 }
-
-	 if ( rgbSize > 0 )
-	 {
-	    /**
-	     ** +-----+-----+
-	     ** |     |     |
-	     ** |  R  |  G  |
-	     ** |     |     |
-	     ** +-----+-----+
-	     ** |     |     |
-	     ** |  Y  |  B  |
-	     ** |     |     |
-	     ** +-----+-----+
-	     **/
-	    if ( i > height / 2 ) {
-	       if ( j < width / 2 ) {
-		  p[0] = 0xff;
-		  p[1] = 0x00;
-		  p[2] = 0x00;
-	       } else {
-		  p[0] = 0x00;
-		  p[1] = 0xff;
-		  p[2] = 0x00;
-	       }
-	    } else {
-	       if ( j < width / 2 ) {
-		  p[0] = 0xff;
-		  p[1] = 0xff;
-		  p[2] = 0x00;
-	       } else {
-		  p[0] = 0x00;
-		  p[1] = 0x00;
-		  p[2] = 0xff;
-	       }
-	    }
-	    p += 3 * elementSize;
-	 }
-
-	 if ( alphaSize > 0 )
-	 {
-	    /**
-	     ** +-----------+
-	     ** |     W     |
-	     ** |  +-----+  |
-	     ** |  |     |  |
-	     ** |  |  B  |  |
-	     ** |  |     |  |
-	     ** |  +-----+  |
-	     ** |           |
-	     ** +-----------+
-	     **/
-	    int i2 = i - height / 2;
-	    int j2 = j - width / 2;
-	    int h8 = height / 8;
-	    int w8 = width / 8;
-	    if ( -h8 <= i2 && i2 <= h8 && -w8 <= j2 && j2 <= w8 ) {
-	       p[0] = 0x00;
-	    } else if ( -2 * h8 <= i2 && i2 <= 2 * h8 && -2 * w8 <= j2 && j2 <= 2 * w8 ) {
-	       p[0] = 0x55;
-	    } else if ( -3 * h8 <= i2 && i2 <= 3 * h8 && -3 * w8 <= j2 && j2 <= 3 * w8 ) {
-	       p[0] = 0xaa;
-	    } else {
-	       p[0] = 0xff;
-	    }
-	    p += elementSize;
-	 }
-      }
-   }
-
-   glTexImage2D( GL_TEXTURE_2D, 0,
-		 format->internalFormat, width, height, 0,
-		 textureFormat, GL_UNSIGNED_BYTE, texImage );
-
-   free( texImage );
-}
-
-static void drawCheck( int w, int h, const GLfloat lightCheck[4],
-                       const GLfloat darkCheck[4] )
-{
-   float	dw = 2.0 / w;
-   float	dh = 2.0 / h;
-   int		i, j;
-
-   for ( i = 0 ; i < w ; i++ ) {
-      GLfloat x0 = -1.0 + i * dw;
-      GLfloat x1 = x0 + dw;
-
-      glBegin( GL_QUAD_STRIP );
-
-      for ( j = 0 ; j <= h ; j++ ) {
-	 GLfloat y = -1.0 + j * dh;
-
-	 if ( (i ^ j) & 1 ) {
-	    glColor4fv( lightCheck );
-	 } else {
-	    glColor4fv( darkCheck );
-	 }
-
-	 glVertex2f( x0, y );
-	 glVertex2f( x1, y );
-      }
-
-      glEnd();
-   }
-}
-
-static const char *lookupFormat( GLint format )
-{
-   switch ( format ) {
-   case GL_RGBA:
-      return "GL_RGBA";
-   case GL_RGB:
-      return "GL_RGB";
-   case GL_ALPHA:
-      return "GL_ALPHA";
-   case GL_LUMINANCE:
-      return "GL_LUMINANCE";
-   case GL_LUMINANCE_ALPHA:
-      return "GL_LUMINANCE_ALPHA";
-   case GL_INTENSITY:
-      return "GL_INTENSITY";
-   case GL_COLOR_INDEX:
-      return "GL_COLOR_INDEX";
-   case GL_BGRA:
-      return "GL_BGRA";
-   case GL_BGR:
-      return "GL_BGR";
-   default:
-      return "unknown format";
-   }
-}
-
-static void drawSample( int x, int y, int w, int h,
-			const struct formatInfo *format,
-                        const struct envModeInfo *envMode )
-{
-   glViewport( x, y, w, h );
-   glScissor( x, y, w, h );
-
-   glClearColor( 0.1, 0.1, 0.1, 1.0 );
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   begin2D( w, h );
-   drawString( format->name, 10, h - 15, labelInfoColor );
-   drawString( envMode->name, 10, 5, labelInfoColor );
-   end2D();
-
-   glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, envMode->mode );
-   glTexEnvfv( GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, envColors[envColor] );
-
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
-
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
-
-   loadTexture( textureWidth, textureHeight, format );
-
-   if ( drawBackground ) {
-      drawCheck( 15, 15, lightCheck, darkCheck );
-   }
-   if ( drawBlended ) {
-      glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
-      glEnable( GL_BLEND );
-   }
-   if ( drawSmooth ) {
-      glShadeModel( GL_SMOOTH );
-   }
-   else {
-      glShadeModel( GL_FLAT );
-      glColor4f(1, 1, 1, 1);
-   }
-   if ( drawTextured ) {
-      glEnable( GL_TEXTURE_2D );
-   }
-
-   /*
-    * if (drawSmooth) then draw quad which goes from purple at the
-    * bottom (100% alpha) to green at the top (50% alpha).
-    */
-   glBegin( GL_QUADS );
-      if ( drawSmooth )  glColor4f( 1.0, 0.0, 1.0, 1.0 );
-      glTexCoord2f( 0.0, 0.0 );
-      glVertex2f( -0.8, -0.8 );
-
-      if ( drawSmooth )  glColor4f( 1.0, 0.0, 1.0, 1.0 );
-      glTexCoord2f( 1.0, 0.0 );
-      glVertex2f( 0.8, -0.8 );
-
-      if ( drawSmooth )  glColor4f( 0.0, 1.0, 0.0, 0.5 );
-      glTexCoord2f( 1.0, 1.0 );
-      glVertex2f( 0.8, 0.8 );
-
-      if ( drawSmooth )  glColor4f( 0.0, 1.0, 0.0, 0.5 );
-      glTexCoord2f( 0.0, 1.0 );
-      glVertex2f( -0.8, 0.8 );
-   glEnd();
-
-   glDisable( GL_BLEND );
-   glShadeModel( GL_FLAT );
-   glDisable( GL_TEXTURE_2D );
-
-   if ( envMode->mode == GL_DECAL &&
-        (format->baseFormat == GL_ALPHA ||
-         format->baseFormat == GL_LUMINANCE ||
-         format->baseFormat == GL_LUMINANCE_ALPHA ||
-         format->baseFormat == GL_INTENSITY)) {
-      /* undefined format/mode combination */
-      begin2D( w, h );
-      drawStringOutline( "UNDEFINED MODE", 15, h / 2,
-                         labelLevelColor0, labelLevelColor1 );
-      end2D();
-   }
-   else if ( displayLevelInfo ) {
-      GLint width, height, border, format;
-      GLint redSize, greenSize, blueSize, alphaSize;
-      GLint luminanceSize, intensitySize;
-      char buf[255];
-
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_BORDER, &border );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_RED_SIZE, &redSize );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_GREEN_SIZE, &greenSize );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_BLUE_SIZE, &blueSize );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_ALPHA_SIZE, &alphaSize );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_LUMINANCE_SIZE, &luminanceSize );
-      glGetTexLevelParameteriv( GL_TEXTURE_2D, 0, GL_TEXTURE_INTENSITY_SIZE, &intensitySize );
-
-      begin2D( w, h );
-      sprintf( buf, "dimensions: %d x %d", width, height );
-      drawStringOutline( buf, 15, h / 2 + 20, labelLevelColor0, labelLevelColor1 );
-
-      sprintf( buf, "border: %d", border );
-      drawStringOutline( buf, 15, h / 2 + 10, labelLevelColor0, labelLevelColor1 );
-
-      sprintf( buf, "internal format:" );
-      drawStringOutline( buf, 15, h / 2, labelLevelColor0, labelLevelColor1 );
-
-      sprintf( buf, "  %s",  lookupFormat( format ) );
-      drawStringOutline( buf, 15, h / 2 - 10, labelLevelColor0, labelLevelColor1 );
-
-      sprintf( buf, "sizes:" );
-      drawStringOutline( buf, 15, h / 2 - 20, labelLevelColor0, labelLevelColor1 );
-
-      sprintf( buf, "  %d / %d / %d / %d / %d / %d",
-	       redSize, greenSize, blueSize, alphaSize,
-	       luminanceSize, intensitySize );
-      drawStringOutline( buf, 15, h / 2 - 30, labelLevelColor0, labelLevelColor1 );
-
-      end2D();
-   }
-}
-
-static void display( void )
-{
-   int		numX = NUM_ENV_MODES, numY = NUM_BASE_FORMATS;
-   float	xBase = (float) winWidth * 0.01;
-   float	xOffset = (winWidth - xBase) / numX;
-   float	xSize = max( xOffset - xBase, 1 );
-   float	yBase = (float) winHeight * 0.01;
-   float	yOffset = (winHeight - yBase) / numY;
-   float	ySize = max( yOffset - yBase, 1 );
-   float	x, y;
-   int		i, j;
-
-   glViewport( 0, 0, winWidth, winHeight );
-   glDisable( GL_SCISSOR_TEST );
-   glClearColor( 0.0, 0.0, 0.0, 0.0 );
-   glClear( GL_COLOR_BUFFER_BIT );
-   glEnable( GL_SCISSOR_TEST );
-
-   x = xBase;
-   y = (winHeight - 1) - yOffset;
-
-   for ( i = 0 ; i < NUM_BASE_FORMATS ; i++ )
-   {
-      struct formatInfo *format;
-
-      if ( i == baseFormat ) {
-	 labelInfoColor = labelColor1;
-      } else {
-	 labelInfoColor = labelColor0;
-      }
-
-      format = &baseFormats[i].format[baseFormats[i].current];
-
-      for ( j = 0 ; j < NUM_ENV_MODES ; j++ ) {
-	 struct envModeInfo *envMode;
-
-	 envMode = &envModes[j];
-	 drawSample( x, y, xSize, ySize, format, envMode );
-	 x += xOffset;
-      }
-
-      x = xBase;
-      y -= yOffset;
-   }
-
-   if ( doubleBuffered ) {
-      glutSwapBuffers();
-   } else {
-      glFlush();
-   }
-
-   checkErrors();
-}
-
-static void usage( char *name )
-{
-   fprintf( stderr, "usage: %s [ options ]\n", name );
-   fprintf( stderr, "\n" );
-   fprintf( stderr, "options:\n" );
-   fprintf( stderr, "    -sb    single buffered\n" );
-   fprintf( stderr, "    -db    double buffered\n" );
-   fprintf( stderr, "    -info  print OpenGL driver info\n" );
-}
-
-static void instructions( void )
-{
-   fprintf( stderr, "texenv - texture environment and internal format test\n" );
-   fprintf( stderr, "\n" );
-   fprintf( stderr, "  [c] - cycle through background colors\n" );
-   fprintf( stderr, "  [g] - toggle background\n" );
-   fprintf( stderr, "  [b] - toggle blend\n" );
-   fprintf( stderr, "  [s] - toggle smooth shading\n" );
-   fprintf( stderr, "  [t] - toggle texturing\n" );
-   fprintf( stderr, "  [i] - toggle information display\n" );
-   fprintf( stderr, "  up/down - select row\n" );
-   fprintf( stderr, "  left/right - change row's internal format\n" );
-}
-
-int main( int argc, char *argv[] )
-{
-   GLboolean info = GL_FALSE;
-   int i;
-
-   glutInit( &argc, argv );
-
-   for ( i = 1 ; i < argc ; i++ ) {
-      if ( !strcmp( "-sb", argv[i] ) ) {
-	 doubleBuffered = GL_FALSE;
-      } else if ( !strcmp( "-db", argv[i] ) ) {
-	 doubleBuffered = GL_TRUE;
-      } else if ( !strcmp( "-info", argv[i] ) ) {
-	 info = GL_TRUE;
-      } else {
-	 usage( argv[0] );
-	 exit( 1 );
-      }
-   }
-
-   if ( doubleBuffered ) {
-      glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
-   } else {
-      glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE );
-   }
-
-   glutInitWindowSize( winWidth, winHeight );
-   glutInitWindowPosition( 0, 0 );
-   glutCreateWindow( "Texture Environment Test" );
-
-   initialize();
-   instructions();
-
-   if ( info ) {
-      printf( "\n" );
-      printf( "GL_RENDERER   = %s\n", (char *) glGetString( GL_RENDERER ) );
-      printf( "GL_VERSION    = %s\n", (char *) glGetString( GL_VERSION ) );
-      printf( "GL_VENDOR     = %s\n", (char *) glGetString( GL_VENDOR ) ) ;
-      printf( "GL_EXTENSIONS = %s\n", (char *) glGetString( GL_EXTENSIONS ) );
-   }
-
-#if GL_EXT_texture_env_add
-   if ( !glutExtensionSupported( "GL_EXT_texture_env_add" ) ) {
-      fprintf( stderr, "missing extension: GL_EXT_texture_env_add\n" );
-      NUM_ENV_MODES--;
-   }
-#endif
-
-   glutDisplayFunc( display );
-   glutReshapeFunc( reshape );
-   glutKeyboardFunc( keyboard );
-   glutSpecialFunc( special );
-   glutMainLoop();
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/texobj.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/texobj.c
deleted file mode 100644
index 40bce6e56..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/texobj.c
+++ /dev/null
@@ -1,284 +0,0 @@
-
-/*
- * Example of using the 1.1 texture object functions.
- * Also, this demo utilizes Mesa's fast texture map path.
- *
- * Brian Paul   June 1996   This file is in the public domain.
- */
-
-#include <assert.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "GL/glut.h"
-
-static GLuint Window = 0;
-
-static GLuint TexObj[2];
-static GLfloat Angle = 0.0f;
-static GLboolean UseObj = GL_FALSE;
-
-
-#if defined(GL_VERSION_1_1) || defined(GL_VERSION_1_2)
-#  define TEXTURE_OBJECT 1
-#elif defined(GL_EXT_texture_object)
-#  define TEXTURE_OBJECT 1
-#  define glBindTexture(A,B)     glBindTextureEXT(A,B)
-#  define glGenTextures(A,B)     glGenTexturesEXT(A,B)
-#  define glDeleteTextures(A,B)  glDeleteTexturesEXT(A,B)
-#endif
-
-
-
-
-static void draw( void )
-{
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   glColor3f( 1.0, 1.0, 1.0 );
-
-   /* draw first polygon */
-   glPushMatrix();
-   glTranslatef( -1.0, 0.0, 0.0 );
-   glRotatef( Angle, 0.0, 0.0, 1.0 );
-   if (UseObj) {
-#ifdef TEXTURE_OBJECT
-      glBindTexture( GL_TEXTURE_2D, TexObj[0] );
-#endif
-   }
-   else {
-      glCallList( TexObj[0] );
-   }
-   glBegin( GL_POLYGON );
-   glTexCoord2f( 0.0, 0.0 );   glVertex2f( -1.0, -1.0 );
-   glTexCoord2f( 1.0, 0.0 );   glVertex2f(  1.0, -1.0 );
-   glTexCoord2f( 1.0, 1.0 );   glVertex2f(  1.0,  1.0 );
-   glTexCoord2f( 0.0, 1.0 );   glVertex2f( -1.0,  1.0 );
-   glEnd();
-   glPopMatrix();
-
-   /* draw second polygon */
-   glPushMatrix();
-   glTranslatef( 1.0, 0.0, 0.0 );
-   glRotatef( Angle-90.0, 0.0, 1.0, 0.0 );
-   if (UseObj) {
-#ifdef TEXTURE_OBJECT
-      glBindTexture( GL_TEXTURE_2D, TexObj[1] );
-#endif
-   }
-   else {
-      glCallList( TexObj[1] );
-   }
-   glBegin( GL_POLYGON );
-   glTexCoord2f( 0.0, 0.0 );   glVertex2f( -1.0, -1.0 );
-   glTexCoord2f( 1.0, 0.0 );   glVertex2f(  1.0, -1.0 );
-   glTexCoord2f( 1.0, 1.0 );   glVertex2f(  1.0,  1.0 );
-   glTexCoord2f( 0.0, 1.0 );   glVertex2f( -1.0,  1.0 );
-   glEnd();
-   glPopMatrix();
-
-   glutSwapBuffers();
-}
-
-
-
-static void idle( void )
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-   Angle += 120.0*dt;
-   glutPostRedisplay();
-}
-
-
-
-/* change view Angle, exit upon ESC */
-static void key(unsigned char k, int x, int y)
-{
-   (void) x;
-   (void) y;
-   switch (k) {
-      case 27:
-#ifdef TEXTURE_OBJECT
-         glDeleteTextures( 2, TexObj );
-#endif
-         glutDestroyWindow(Window);
-         exit(0);
-   }
-}
-
-
-
-/* new window size or exposure */
-static void reshape( int width, int height )
-{
-   glViewport(0, 0, (GLint)width, (GLint)height);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   /*   glOrtho( -3.0, 3.0, -3.0, 3.0, -10.0, 10.0 );*/
-   glFrustum( -2.0, 2.0, -2.0, 2.0, 6.0, 20.0 );
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glTranslatef( 0.0, 0.0, -8.0 );
-}
-
-
-static void init( void )
-{
-   static int width=8, height=8;
-   static GLubyte tex1[] = {
-     0, 0, 0, 0, 0, 0, 0, 0,
-     0, 0, 0, 0, 1, 0, 0, 0,
-     0, 0, 0, 1, 1, 0, 0, 0,
-     0, 0, 0, 0, 1, 0, 0, 0,
-     0, 0, 0, 0, 1, 0, 0, 0,
-     0, 0, 0, 0, 1, 0, 0, 0,
-     0, 0, 0, 1, 1, 1, 0, 0,
-     0, 0, 0, 0, 0, 0, 0, 0 };
-
-   static GLubyte tex2[] = {
-     0, 0, 0, 0, 0, 0, 0, 0,
-     0, 0, 0, 2, 2, 0, 0, 0,
-     0, 0, 2, 0, 0, 2, 0, 0,
-     0, 0, 0, 0, 0, 2, 0, 0,
-     0, 0, 0, 0, 2, 0, 0, 0,
-     0, 0, 0, 2, 0, 0, 0, 0,
-     0, 0, 2, 2, 2, 2, 0, 0,
-     0, 0, 0, 0, 0, 0, 0, 0 };
-
-   GLubyte tex[64][3];
-   GLint i, j;
-
-
-   glDisable( GL_DITHER );
-
-   /* Setup texturing */
-   glEnable( GL_TEXTURE_2D );
-   glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL );
-   glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST );
-
-
-   /* generate texture object IDs */
-   if (UseObj) {
-#ifdef TEXTURE_OBJECT
-      glGenTextures( 2, TexObj );
-#endif
-   }
-   else {
-      TexObj[0] = glGenLists(2);
-      TexObj[1] = TexObj[0]+1;
-   }
-
-   /* setup first texture object */
-   if (UseObj) {
-#ifdef TEXTURE_OBJECT
-      glBindTexture( GL_TEXTURE_2D, TexObj[0] );
-      assert(glIsTexture(TexObj[0]));
-#endif
-   }
-   else {
-      glNewList( TexObj[0], GL_COMPILE );
-   }
-   /* red on white */
-   for (i=0;i<height;i++) {
-      for (j=0;j<width;j++) {
-         int p = i*width+j;
-         if (tex1[(height-i-1)*width+j]) {
-            tex[p][0] = 255;   tex[p][1] = 0;     tex[p][2] = 0;
-         }
-         else {
-            tex[p][0] = 255;   tex[p][1] = 255;   tex[p][2] = 255;
-         }
-      }
-   }
-
-   glTexImage2D( GL_TEXTURE_2D, 0, 3, width, height, 0,
-                 GL_RGB, GL_UNSIGNED_BYTE, tex );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
-   if (!UseObj) {
-      glEndList();
-   }
-   /* end of texture object */
-
-   /* setup second texture object */
-   if (UseObj) {
-#ifdef TEXTURE_OBJECT
-      glBindTexture( GL_TEXTURE_2D, TexObj[1] );
-      assert(glIsTexture(TexObj[1]));
-#endif
-      assert(!glIsTexture(TexObj[1] + 999));
-   }
-   else {
-      glNewList( TexObj[1], GL_COMPILE );
-   }
-   /* green on blue */
-   for (i=0;i<height;i++) {
-      for (j=0;j<width;j++) {
-         int p = i*width+j;
-         if (tex2[(height-i-1)*width+j]) {
-            tex[p][0] = 0;     tex[p][1] = 255;   tex[p][2] = 0;
-         }
-         else {
-            tex[p][0] = 0;     tex[p][1] = 0;     tex[p][2] = 255;
-         }
-      }
-   }
-   glTexImage2D( GL_TEXTURE_2D, 0, 3, width, height, 0,
-                 GL_RGB, GL_UNSIGNED_BYTE, tex );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
-   glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
-   if (!UseObj) {
-      glEndList();
-   }
-   /* end texture object */
-
-}
-
-
-
-int main( int argc, char *argv[] )
-{
-   glutInit(&argc, argv);
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(300, 300);
-   glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
-
-   Window = glutCreateWindow("Texture Objects");
-   if (!Window) {
-      exit(1);
-   }
-
-   /* check that renderer has the GL_EXT_texture_object extension
-    * or supports OpenGL 1.1
-    */
-#ifdef TEXTURE_OBJECT
-   {
-      char *exten = (char *) glGetString( GL_EXTENSIONS );
-      char *version = (char *) glGetString( GL_VERSION );
-      if (   strstr( exten, "GL_EXT_texture_object" )
-          || strncmp( version, "1.1", 3 )==0
-          || strncmp( version, "1.2", 3 )==0 ) {
-         UseObj = GL_TRUE;
-      }
-   }
-#endif
-
-   init();
-
-   glutReshapeFunc( reshape );
-   glutKeyboardFunc( key );
-   glutIdleFunc( idle );
-   glutDisplayFunc( draw );
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/trispd.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/trispd.c
deleted file mode 100644
index 165d088e3..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/trispd.c
+++ /dev/null
@@ -1,253 +0,0 @@
-
-/*
- * Simple GLUT program to measure triangle strip rendering speed.
- * Brian Paul  February 15, 1997  This file is in the public domain.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <GL/glut.h>
-
-
-static float MinPeriod = 2.0;   /* 2 seconds */
-static float Width = 400.0;
-static float Height = 400.0;
-static int Loops = 1;
-static int Size = 50;
-static int Texture = 0;
-
-
-
-static void Idle( void )
-{
-   glutPostRedisplay();
-}
-
-
-static void Display( void )
-{
-   float x, y;
-   float xStep;
-   float yStep;
-   double t0, t1;
-   double triRate;
-   double pixelRate;
-   int triCount;
-   int i;
-   float red[3] = { 1.0, 0.0, 0.0 };
-   float blue[3] = { 0.0, 0.0, 1.0 };
-
-   xStep = yStep = sqrt( 2.0 * Size );
-
-   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-   triCount = 0;
-   t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
-   if (Texture) {
-      float uStep = xStep / Width;
-      float vStep = yStep / Height;
-      float u, v;
-      for (i=0; i<Loops; i++) {
-	 for (y=1.0, v=0.0f; y<Height-yStep; y+=yStep, v+=vStep) {
-	    glBegin(GL_TRIANGLE_STRIP);
-	    for (x=1.0, u=0.0f; x<Width; x+=xStep, u+=uStep) {
-	       glColor3fv(red);
-	       glTexCoord2f(u, v);	    
-	       glVertex2f(x, y);
-	       glColor3fv(blue);
-	       glTexCoord2f(u, v+vStep);
-	       glVertex2f(x, y+yStep);
-	       triCount += 2;
-	    }
-	    glEnd();
-	    triCount -= 2;
-	 }
-      }
-   }
-   else {
-      for (i=0; i<Loops; i++) {
-	 for (y=1.0; y<Height-yStep; y+=yStep) {
-	    glBegin(GL_TRIANGLE_STRIP);
-	    for (x=1.0; x<Width; x+=xStep) {
-	       glColor3fv(red);
-	       glVertex2f(x, y);
-	       glColor3fv(blue);
-	       glVertex2f(x, y+yStep);
-	       triCount += 2;
-	    }
-	    glEnd();
-	    triCount -= 2;
-	 }
-      }
-   }
-   glFinish();
-   t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
-   
-   if (t1-t0 < MinPeriod) {
-      /* Next time draw more triangles to get longer elapsed time */
-      Loops *= 2;
-      return;
-   }
-
-   triRate = triCount / (t1-t0);
-   pixelRate = triRate * Size;
-   printf("Rate: %d tri in %gs = %g tri/s  %d pixels/s\n",
-          triCount, t1-t0, triRate, (int)pixelRate);
-
-   glutSwapBuffers();
-}
-
-
-static void Reshape( int width, int height )
-{
-   Width = width;
-   Height = height;
-   glViewport( 0, 0, width, height );
-   glMatrixMode( GL_PROJECTION );
-   glLoadIdentity();
-   glOrtho(0.0, width, 0.0, height, -1.0, 1.0);
-   glMatrixMode( GL_MODELVIEW );
-   glLoadIdentity();
-}
-
-
-static void Key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 27:
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void LoadTex(int comp, int filter)
-{
-   GLubyte *pixels;
-   int x, y;
-   pixels = (GLubyte *) malloc(4*256*256);
-   for (y = 0; y < 256; ++y)
-      for (x = 0; x < 256; ++x) {
-	 pixels[(y*256+x)*4+0] = (int)(128.5 + 127.0 * cos(0.024544 * x));
-	 pixels[(y*256+x)*4+1] = 255;
-	 pixels[(y*256+x)*4+2] = (int)(128.5 + 127.0 * cos(0.024544 * y));
-	 pixels[(y*256+x)*4+3] = 255;
-      }
-   glEnable(GL_TEXTURE_2D);
-   glTexImage2D(GL_TEXTURE_2D, 0, comp, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-   printf("Texture: GL_MODULATE, %d comps, %s\n", comp, filter == GL_NEAREST ? "GL_NEAREST" : "GL_LINEAR");
-}
-
-
-static void Init( int argc, char *argv[] )
-{
-   GLint shade;
-   GLint rBits, gBits, bBits;
-   int filter = GL_NEAREST, comp = 3;
-
-   int i;
-   for (i=1; i<argc; i++) {
-      if (strcmp(argv[i],"-dither")==0)
-         glDisable(GL_DITHER);
-      else if (strcmp(argv[i],"+dither")==0)
-         glEnable(GL_DITHER);
-      else if (strcmp(argv[i],"+smooth")==0)
-         glShadeModel(GL_SMOOTH);
-      else if (strcmp(argv[i],"+flat")==0)
-         glShadeModel(GL_FLAT);
-      else if (strcmp(argv[i],"+depth")==0)
-         glEnable(GL_DEPTH_TEST);
-      else if (strcmp(argv[i],"-depth")==0)
-         glDisable(GL_DEPTH_TEST);
-      else if (strcmp(argv[i],"-size")==0) {
-         Size = atoi(argv[i+1]);
-         i++;
-      }
-      else if (strcmp(argv[i],"-texture")==0)
-	 Texture = 0;
-      else if (strcmp(argv[i],"+texture")==0)
-	 Texture = 1;
-      else if (strcmp(argv[i],"-linear")==0)
-	 filter = GL_NEAREST;
-      else if (strcmp(argv[i],"+linear")==0)
-	 filter = GL_LINEAR;
-      else if (strcmp(argv[i],"-persp")==0)
-	 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
-      else if (strcmp(argv[i],"+persp")==0)
-	 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
-      else if (strcmp(argv[i],"-comp")==0) {
-	 comp = atoi(argv[i+1]);
-	 i++;
-      }
-      else
-         printf("Unknown option: %s\n", argv[i]);
-   }
-
-   glGetIntegerv(GL_SHADE_MODEL, &shade);
-
-   printf("Dither: %s\n", glIsEnabled(GL_DITHER) ? "on" : "off");
-   printf("ShadeModel: %s\n", (shade==GL_FLAT) ? "flat" : "smooth");
-   printf("DepthTest: %s\n", glIsEnabled(GL_DEPTH_TEST) ? "on" : "off");
-   printf("Size: %d pixels\n", Size);
-
-   if (Texture)
-      LoadTex(comp, filter);
-
-   glGetIntegerv(GL_RED_BITS, &rBits);
-   glGetIntegerv(GL_GREEN_BITS, &gBits);
-   glGetIntegerv(GL_BLUE_BITS, &bBits);
-   printf("RedBits: %d  GreenBits: %d  BlueBits: %d\n", rBits, gBits, bBits);
-}
-
-
-static void Help( const char *program )
-{
-   printf("%s options:\n", program);
-   printf("  +/-dither      enable/disable dithering\n");
-   printf("  +/-depth       enable/disable depth test\n");
-   printf("  +flat          flat shading\n");
-   printf("  +smooth        smooth shading\n");
-   printf("  -size pixels   specify pixels/triangle\n");
-   printf("  +/-texture     enable/disable texture\n");
-   printf("  -comp n        texture format\n");
-   printf("  +/-linear      bilinear texture filter\n");
-   printf("  +/-persp       perspective correction hint\n");
-}
-
-
-int main( int argc, char *argv[] )
-{
-   printf("For options:  %s -help\n", argv[0]);
-   glutInit( &argc, argv );
-   glutInitWindowSize( (int) Width, (int) Height );
-   glutInitWindowPosition( 0, 0 );
-
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
-
-   glutCreateWindow( argv[0] );
-
-   if (argc==2 && strcmp(argv[1],"-help")==0) {
-      Help(argv[0]);
-      return 0;
-   }
-
-   Init( argc, argv );
-
-   glutReshapeFunc( Reshape );
-   glutKeyboardFunc( Key );
-   glutDisplayFunc( Display );
-   glutIdleFunc( Idle );
-
-   glutMainLoop();
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel.c
deleted file mode 100644
index 6a240580e..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel.c
+++ /dev/null
@@ -1,535 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#include <GL/glut.h>
-#include "readtex.h"
-#include "tunneldat.h"
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-static int WIDTH = 640;
-static int HEIGHT = 480;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-static GLint NiceFog = 1;
-
-#define NUMBLOC 5
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-/*
-extern int striplength_skin_13[];
-extern float stripdata_skin_13[];
-
-extern int striplength_skin_12[];
-extern float stripdata_skin_12[];
-
-extern int striplength_skin_11[];
-extern float stripdata_skin_11[];
-
-extern int striplength_skin_9[];
-extern float stripdata_skin_9[];
-*/
-
-static int win = 0;
-
-static float obs[3] = { 1000.0, 0.0, 2.0 };
-static float dir[3];
-static float v = 30.;
-static float alpha = 90.0;
-static float beta = 90.0;
-
-static int fog = 1;
-static int bfcull = 1;
-static int usetex = 1;
-static int cstrip = 0;
-static int help = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-
-static GLuint t1id, t2id;
-
-static void
-inittextures(void)
-{
-   glGenTextures(1, &t1id);
-   glBindTexture(GL_TEXTURE_2D, t1id);
-
-   if (!LoadRGBMipmaps("../images/tile.rgb", GL_RGB)) {
-      fprintf(stderr, "Error reading a texture.\n");
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_NEAREST);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glGenTextures(1, &t2id);
-   glBindTexture(GL_TEXTURE_2D, t2id);
-
-   if (!LoadRGBMipmaps("../images/bw.rgb", GL_RGB)) {
-      fprintf(stderr, "Error reading a texture.\n");
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-}
-
-static void
-drawobjs(const int *l, const float *f)
-{
-   int mend, j;
-
-   if (cstrip) {
-      float r = 0.33, g = 0.33, b = 0.33;
-
-      for (; (*l) != 0;) {
-	 mend = *l++;
-
-	 r += 0.33;
-	 if (r > 1.0) {
-	    r = 0.33;
-	    g += 0.33;
-	    if (g > 1.0) {
-	       g = 0.33;
-	       b += 0.33;
-	       if (b > 1.0)
-		  b = 0.33;
-	    }
-	 }
-
-	 glColor3f(r, g, b);
-	 glBegin(GL_TRIANGLE_STRIP);
-	 for (j = 0; j < mend; j++) {
-	    f += 4;
-	    glTexCoord2fv(f);
-	    f += 2;
-	    glVertex3fv(f);
-	    f += 3;
-	 }
-	 glEnd();
-      }
-   }
-   else
-      for (; (*l) != 0;) {
-	 mend = *l++;
-
-	 glBegin(GL_TRIANGLE_STRIP);
-	 for (j = 0; j < mend; j++) {
-	    glColor4fv(f);
-	    f += 4;
-	    glTexCoord2fv(f);
-	    f += 2;
-	    glVertex3fv(f);
-	    f += 3;
-	 }
-	 glEnd();
-      }
-}
-
-static void
-calcposobs(void)
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-
-   dir[0] = sin(alpha * M_PI / 180.0);
-   dir[1] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
-   dir[2] = cos(beta * M_PI / 180.0);
-
-   if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5)
-      dir[0] = 0;
-   if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5)
-      dir[1] = 0;
-   if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
-      dir[2] = 0;
-
-   obs[0] += v * dir[0] * dt;
-   obs[1] += v * dir[1] * dt;
-   obs[2] += v * dir[2] * dt;
-}
-
-static void
-special(int k, int x, int y)
-{
-   switch (k) {
-   case GLUT_KEY_LEFT:
-      alpha -= 2.0;
-      break;
-   case GLUT_KEY_RIGHT:
-      alpha += 2.0;
-      break;
-   case GLUT_KEY_DOWN:
-      beta -= 2.0;
-      break;
-   case GLUT_KEY_UP:
-      beta += 2.0;
-      break;
-   }
-}
-
-static void
-key(unsigned char k, int x, int y)
-{
-   switch (k) {
-   case 27:
-      exit(0);
-      break;
-
-   case 'a':
-      v += 5.;
-      break;
-   case 'z':
-      v -= 5.;
-      break;
-
-#ifdef XMESA
-   case ' ':
-      fullscreen = (!fullscreen);
-      XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-      break;
-#endif
-   case 'j':
-      joyactive = (!joyactive);
-      break;
-   case 'h':
-      help = (!help);
-      break;
-   case 'f':
-      fog = (!fog);
-      break;
-   case 't':
-      usetex = (!usetex);
-      break;
-   case 'b':
-      if (bfcull) {
-	 glDisable(GL_CULL_FACE);
-	 bfcull = 0;
-      }
-      else {
-	 glEnable(GL_CULL_FACE);
-	 bfcull = 1;
-      }
-      break;
-   case 'm':
-      cstrip = (!cstrip);
-      break;
-
-   case 'd':
-      fprintf(stderr, "Deleting textures...\n");
-      glDeleteTextures(1, &t1id);
-      glDeleteTextures(1, &t2id);
-      fprintf(stderr, "Loading textures...\n");
-      inittextures();
-      fprintf(stderr, "Done.\n");
-      break;
-   case 'n':
-      NiceFog = !NiceFog;
-      printf("NiceFog %d\n", NiceFog);
-      break;
-   }
-   glutPostRedisplay();
-}
-
-static void
-reshape(int w, int h)
-{
-   WIDTH = w;
-   HEIGHT = h;
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(80.0, w / (float) h, 1.0, 50.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glViewport(0, 0, w, h);
-}
-
-static void
-printstring(void *font, char *string)
-{
-   int len, i;
-
-   len = (int) strlen(string);
-   for (i = 0; i < len; i++)
-      glutBitmapCharacter(font, string[i]);
-}
-
-static void
-printhelp(void)
-{
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-   glColor4f(0.0, 0.0, 0.0, 0.5);
-   glRecti(40, 40, 600, 440);
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(300, 420);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help");
-
-   glRasterPos2i(60, 390);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help");
-   glRasterPos2i(60, 360);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Toggle Textures");
-   glRasterPos2i(60, 330);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog");
-   glRasterPos2i(60, 300);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "m - Toggle strips");
-   glRasterPos2i(60, 270);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Toggle Back face culling");
-   glRasterPos2i(60, 240);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate");
-   glRasterPos2i(60, 210);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity");
-   glRasterPos2i(60, 180);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity");
-
-   glRasterPos2i(60, 150);
-   if (joyavailable)
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "j - Toggle jostick control (Joystick control available)");
-   else
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "(No Joystick control available)");
-}
-
-static void
-dojoy(void)
-{
-#ifdef WIN32
-   static UINT max[2] = { 0, 0 };
-   static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2];
-   MMRESULT res;
-   JOYINFO joy;
-
-   res = joyGetPos(JOYSTICKID1, &joy);
-
-   if (res == JOYERR_NOERROR) {
-      joyavailable = 1;
-
-      if (max[0] < joy.wXpos)
-	 max[0] = joy.wXpos;
-      if (min[0] > joy.wXpos)
-	 min[0] = joy.wXpos;
-      center[0] = (max[0] + min[0]) / 2;
-
-      if (max[1] < joy.wYpos)
-	 max[1] = joy.wYpos;
-      if (min[1] > joy.wYpos)
-	 min[1] = joy.wYpos;
-      center[1] = (max[1] + min[1]) / 2;
-
-      if (joyactive) {
-	 if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0]))
-	    alpha -=
-	       2.0 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
-	 if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
-	    beta += 2.0 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
-	 if (joy.wButtons & JOY_BUTTON1)
-	    v += 0.01;
-	 if (joy.wButtons & JOY_BUTTON2)
-	    v -= 0.01;
-      }
-   }
-   else
-      joyavailable = 0;
-#endif
-}
-
-static void
-draw(void)
-{
-   static char frbuf[80] = "";
-   int i;
-   float base, offset;
-
-   if (NiceFog)
-      glHint(GL_FOG_HINT, GL_NICEST);
-   else
-      glHint(GL_FOG_HINT, GL_DONT_CARE);
-
-   dojoy();
-
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   if (usetex)
-      glEnable(GL_TEXTURE_2D);
-   else
-      glDisable(GL_TEXTURE_2D);
-
-   if (fog)
-      glEnable(GL_FOG);
-   else
-      glDisable(GL_FOG);
-
-   glShadeModel(GL_SMOOTH);
-
-   glPushMatrix();
-   calcposobs();
-   gluLookAt(obs[0], obs[1], obs[2],
-	     obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
-	     0.0, 0.0, 1.0);
-
-   if (dir[0] > 0) {
-      offset = 8.0;
-      base = obs[0] - fmod(obs[0], 8.0);
-   }
-   else {
-      offset = -8.0;
-      base = obs[0] + (8.0 - fmod(obs[0], 8.0));
-   }
-
-   glPushMatrix();
-   glTranslatef(base - offset / 2.0, 0.0, 0.0);
-   for (i = 0; i < NUMBLOC; i++) {
-      glTranslatef(offset, 0.0, 0.0);
-      glBindTexture(GL_TEXTURE_2D, t1id);
-      drawobjs(striplength_skin_11, stripdata_skin_11);
-      glBindTexture(GL_TEXTURE_2D, t2id);
-      drawobjs(striplength_skin_12, stripdata_skin_12);
-      drawobjs(striplength_skin_9, stripdata_skin_9);
-      drawobjs(striplength_skin_13, stripdata_skin_13);
-   }
-   glPopMatrix();
-   glPopMatrix();
-
-   glDisable(GL_TEXTURE_2D);
-   glDisable(GL_FOG);
-   glShadeModel(GL_FLAT);
-
-   glMatrixMode(GL_PROJECTION);
-   glPushMatrix();
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(10, 10);
-   printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
-   glRasterPos2i(350, 470);
-   printstring(GLUT_BITMAP_HELVETICA_10,
-	       "Tunnel V1.5 Written by David Bucciarelli (tech.hmw@plus.it)");
-
-   if (help)
-      printhelp();
-
-   glMatrixMode(GL_PROJECTION);
-   glPopMatrix();
-   glMatrixMode(GL_MODELVIEW);
-
-   glutSwapBuffers();
-
-   Frames++;
-   {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      if (t - T0 >= 2000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         sprintf(frbuf, "Frame rate: %f", fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-static void
-idle(void)
-{
-   glutPostRedisplay();
-}
-
-
-
-int
-main(int ac, char **av)
-{
-   float fogcolor[4] = { 0.7, 0.7, 0.7, 1.0 };
-
-   fprintf(stderr,
-	   "Tunnel V1.5\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
-
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WIDTH, HEIGHT);
-   glutInit(&ac, av);
-
-   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
-
-   if (!(win = glutCreateWindow("Tunnel"))) {
-      fprintf(stderr, "Error, couldn't open window\n");
-      return -1;
-   }
-
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(80.0, WIDTH / (float) HEIGHT, 1.0, 50.0);
-
-   glMatrixMode(GL_MODELVIEW);
-
-   glShadeModel(GL_SMOOTH);
-   glDisable(GL_DEPTH_TEST);
-   glEnable(GL_CULL_FACE);
-   glEnable(GL_TEXTURE_2D);
-
-   glEnable(GL_FOG);
-   glFogi(GL_FOG_MODE, GL_EXP2);
-   glFogfv(GL_FOG_COLOR, fogcolor);
-
-   glFogf(GL_FOG_DENSITY, 0.06);
-   glHint(GL_FOG_HINT, GL_NICEST);
-
-   inittextures();
-
-   glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]);
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   calcposobs();
-
-   glutReshapeFunc(reshape);
-   glutDisplayFunc(draw);
-   glutKeyboardFunc(key);
-   glutSpecialFunc(special);
-   glutIdleFunc(idle);
-
-   glEnable(GL_BLEND);
-   /*glBlendFunc(GL_SRC_ALPHA_SATURATE,GL_ONE); */
-   /*glEnable(GL_POLYGON_SMOOTH); */
-
-   glutMainLoop();
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel2.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel2.c
deleted file mode 100644
index 75a199af5..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel2.c
+++ /dev/null
@@ -1,605 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * You need TWO Voodoo Graphics boards in order to run
- * this demo !
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#include <GL/glut.h>
-#include "readtex.h"
-#include "tunneldat.h"
-
-#ifdef FX
-#endif
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-#ifdef FX
-GLint fxMesaSelectCurrentBoard(int);
-#endif
-
-static int WIDTHC0 = 640;
-static int HEIGHTC0 = 480;
-
-static int WIDTHC1 = 640;
-static int HEIGHTC1 = 480;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-#define NUMBLOC 5
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-static float obs[3] = { 1000.0, 0.0, 2.0 };
-static float dir[3];
-static float v = 30.;
-static float alpha = 90.0;
-static float beta = 90.0;
-
-static int fog = 1;
-static int bfcull = 1;
-static int usetex = 1;
-static int cstrip = 0;
-static int help = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-
-static int channel[2];
-
-static GLuint t1id, t2id;
-
-static void
-inittextures(void)
-{
-   glGenTextures(1, &t1id);
-   glBindTexture(GL_TEXTURE_2D, t1id);
-
-   if (!LoadRGBMipmaps("../images/tile.rgb", GL_RGB)) {
-      fprintf(stderr, "Error reading a texture.\n");
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_NEAREST);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glGenTextures(1, &t2id);
-   glBindTexture(GL_TEXTURE_2D, t2id);
-
-   if (!LoadRGBMipmaps("../images/bw.rgb", GL_RGB)) {
-      fprintf(stderr, "Error reading a texture.\n");
-      exit(-1);
-   }
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_LINEAR);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-}
-
-static void
-drawobjs(const int *l, const float *f)
-{
-   int mend, j;
-
-   if (cstrip) {
-      float r = 0.33, g = 0.33, b = 0.33;
-
-      for (; (*l) != 0;) {
-	 mend = *l++;
-
-	 r += 0.33;
-	 if (r > 1.0) {
-	    r = 0.33;
-	    g += 0.33;
-	    if (g > 1.0) {
-	       g = 0.33;
-	       b += 0.33;
-	       if (b > 1.0)
-		  b = 0.33;
-	    }
-	 }
-
-	 glColor3f(r, g, b);
-	 glBegin(GL_TRIANGLE_STRIP);
-	 for (j = 0; j < mend; j++) {
-	    f += 4;
-	    glTexCoord2fv(f);
-	    f += 2;
-	    glVertex3fv(f);
-	    f += 3;
-	 }
-	 glEnd();
-      }
-   }
-   else
-      for (; (*l) != 0;) {
-	 mend = *l++;
-
-	 glBegin(GL_TRIANGLE_STRIP);
-	 for (j = 0; j < mend; j++) {
-	    glColor4fv(f);
-	    f += 4;
-	    glTexCoord2fv(f);
-	    f += 2;
-	    glVertex3fv(f);
-	    f += 3;
-	 }
-	 glEnd();
-      }
-}
-
-static void
-calcposobs(void)
-{
-   static double t0 = -1.;
-   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
-   if (t0 < 0.0)
-      t0 = t;
-   dt = t - t0;
-   t0 = t;
-
-   dir[0] = sin(alpha * M_PI / 180.0);
-   dir[1] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
-   dir[2] = cos(beta * M_PI / 180.0);
-
-   if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5)
-      dir[0] = 0;
-   if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5)
-      dir[1] = 0;
-   if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
-      dir[2] = 0;
-
-   obs[0] += v * dir[0] * dt;
-   obs[1] += v * dir[1] * dt;
-   obs[2] += v * dir[2] * dt;
-}
-
-static void
-special(int k, int x, int y)
-{
-   switch (k) {
-   case GLUT_KEY_LEFT:
-      alpha -= 2.0;
-      break;
-   case GLUT_KEY_RIGHT:
-      alpha += 2.0;
-      break;
-   case GLUT_KEY_DOWN:
-      beta -= 2.0;
-      break;
-   case GLUT_KEY_UP:
-      beta += 2.0;
-      break;
-   }
-}
-
-static void
-key(unsigned char k, int x, int y)
-{
-   switch (k) {
-   case 27:
-      exit(0);
-      break;
-
-   case 'a':
-      v += 5.;
-      break;
-   case 'z':
-      v -= 5.;
-      break;
-
-#ifdef XMESA
-   case ' ':
-      fullscreen = (!fullscreen);
-
-      glutSetWindow(channel[0]);
-      XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-
-      glutSetWindow(channel[1]);
-      XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-      break;
-#endif
-
-   case 'j':
-      joyactive = (!joyactive);
-      break;
-   case 'h':
-      help = (!help);
-      break;
-   case 'f':
-      fog = (!fog);
-      break;
-   case 't':
-      usetex = (!usetex);
-      break;
-   case 'b':
-      if (bfcull) {
-	 glDisable(GL_CULL_FACE);
-	 bfcull = 0;
-      }
-      else {
-	 glEnable(GL_CULL_FACE);
-	 bfcull = 1;
-      }
-      break;
-   case 'm':
-      cstrip = (!cstrip);
-      break;
-
-   case 'd':
-      fprintf(stderr, "Deleting textures...\n");
-      glDeleteTextures(1, &t1id);
-      glDeleteTextures(1, &t2id);
-      fprintf(stderr, "Loading textures...\n");
-      inittextures();
-      fprintf(stderr, "Done.\n");
-      break;
-   }
-}
-
-static void
-reshapechannel0(int w, int h)
-{
-   float ratio;
-
-   WIDTHC0 = w;
-   HEIGHTC0 = h;
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-
-   ratio = 0.5f * w / (float) h;
-
-   glFrustum(-2.0, 0.0, -1.0 * ratio, 1.0 * ratio, 1.0, 60.0);
-
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glViewport(0, 0, w, h);
-}
-
-static void
-reshapechannel1(int w, int h)
-{
-   float ratio;
-
-   WIDTHC1 = w;
-   HEIGHTC1 = h;
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-
-   ratio = 0.5f * w / (float) h;
-
-   glFrustum(0.0, 2.0, -1.0 * ratio, 1.0 * ratio, 1.0, 60.0);
-
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glViewport(0, 0, w, h);
-}
-
-static void
-printstring(void *font, char *string)
-{
-   int len, i;
-
-   len = (int) strlen(string);
-   for (i = 0; i < len; i++)
-      glutBitmapCharacter(font, string[i]);
-}
-
-static void
-printhelp(void)
-{
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-   glColor4f(0.0, 0.0, 0.0, 0.5);
-   glRecti(40, 40, 600, 440);
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(300, 420);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help");
-
-   glRasterPos2i(60, 390);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help");
-   glRasterPos2i(60, 360);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Toggle Textures");
-   glRasterPos2i(60, 330);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog");
-   glRasterPos2i(60, 300);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "m - Toggle strips");
-   glRasterPos2i(60, 270);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Toggle Back face culling");
-   glRasterPos2i(60, 240);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate");
-   glRasterPos2i(60, 210);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity");
-   glRasterPos2i(60, 180);
-   printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity");
-
-   glRasterPos2i(60, 150);
-   if (joyavailable)
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "j - Toggle jostick control (Joystick control available)");
-   else
-      printstring(GLUT_BITMAP_TIMES_ROMAN_24,
-		  "(No Joystick control available)");
-}
-
-static void
-dojoy(void)
-{
-#ifdef WIN32
-   static UINT max[2] = { 0, 0 };
-   static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2];
-   MMRESULT res;
-   JOYINFO joy;
-
-   res = joyGetPos(JOYSTICKID1, &joy);
-
-   if (res == JOYERR_NOERROR) {
-      joyavailable = 1;
-
-      if (max[0] < joy.wXpos)
-	 max[0] = joy.wXpos;
-      if (min[0] > joy.wXpos)
-	 min[0] = joy.wXpos;
-      center[0] = (max[0] + min[0]) / 2;
-
-      if (max[1] < joy.wYpos)
-	 max[1] = joy.wYpos;
-      if (min[1] > joy.wYpos)
-	 min[1] = joy.wYpos;
-      center[1] = (max[1] + min[1]) / 2;
-
-      if (joyactive) {
-	 if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0]))
-	    alpha -=
-	       2.0 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
-	 if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
-	    beta += 2.0 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
-	 if (joy.wButtons & JOY_BUTTON1)
-	    v += 0.01;
-	 if (joy.wButtons & JOY_BUTTON2)
-	    v -= 0.01;
-      }
-   }
-   else
-      joyavailable = 0;
-#endif
-}
-
-static void
-draw(void)
-{
-   static char frbuf[80] = "";
-   int i;
-   float base, offset;
-
-   dojoy();
-
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   if (usetex)
-      glEnable(GL_TEXTURE_2D);
-   else
-      glDisable(GL_TEXTURE_2D);
-
-   if (fog)
-      glEnable(GL_FOG);
-   else
-      glDisable(GL_FOG);
-
-   glShadeModel(GL_SMOOTH);
-
-   glPushMatrix();
-   calcposobs();
-   gluLookAt(obs[0], obs[1], obs[2],
-	     obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
-	     0.0, 0.0, 1.0);
-
-   if (dir[0] > 0) {
-      offset = 8.0;
-      base = obs[0] - fmod(obs[0], 8.0);
-   }
-   else {
-      offset = -8.0;
-      base = obs[0] + (8.0 - fmod(obs[0], 8.0));
-   }
-
-   glPushMatrix();
-   glTranslatef(base - offset / 2.0, 0.0, 0.0);
-   for (i = 0; i < NUMBLOC; i++) {
-      glTranslatef(offset, 0.0, 0.0);
-      glBindTexture(GL_TEXTURE_2D, t1id);
-      drawobjs(striplength_skin_11, stripdata_skin_11);
-      glBindTexture(GL_TEXTURE_2D, t2id);
-      drawobjs(striplength_skin_12, stripdata_skin_12);
-      drawobjs(striplength_skin_9, stripdata_skin_9);
-      drawobjs(striplength_skin_13, stripdata_skin_13);
-   }
-   glPopMatrix();
-   glPopMatrix();
-
-   glDisable(GL_TEXTURE_2D);
-   glDisable(GL_FOG);
-   glShadeModel(GL_FLAT);
-
-   glMatrixMode(GL_PROJECTION);
-   glPushMatrix();
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-
-   glColor3f(1.0, 0.0, 0.0);
-   glRasterPos2i(10, 10);
-   printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
-   glRasterPos2i(350, 470);
-   printstring(GLUT_BITMAP_HELVETICA_10,
-	       "Tunnel2 V1.0 Written by David Bucciarelli (tech.hmw@plus.it)");
-
-   if (help)
-      printhelp();
-
-   glMatrixMode(GL_PROJECTION);
-   glPopMatrix();
-   glMatrixMode(GL_MODELVIEW);
-
-   Frames++;
-   {
-      GLint t = glutGet(GLUT_ELAPSED_TIME);
-      if (t - T0 >= 2000) {
-         GLfloat seconds = (t - T0) / 1000.0;
-         GLfloat fps = Frames / seconds;
-         sprintf(frbuf, "Frame rate: %f", fps);
-         T0 = t;
-         Frames = 0;
-      }
-   }
-}
-
-static void
-drawchannel0(void)
-{
-   glutSetWindow(channel[0]);
-   draw();
-   glutSwapBuffers();
-}
-
-static void
-drawchannel1(void)
-{
-   glutSetWindow(channel[1]);
-   draw();
-   glutSwapBuffers();
-}
-
-static void
-drawall(void)
-{
-   glutSetWindow(channel[0]);
-   draw();
-   glutSetWindow(channel[1]);
-   draw();
-
-   glutSetWindow(channel[0]);
-   glutSwapBuffers();
-   glutSetWindow(channel[1]);
-   glutSwapBuffers();
-}
-
-static void
-init(void)
-{
-   float fogcolor[4] = { 0.7, 0.7, 0.7, 1.0 };
-
-   glShadeModel(GL_SMOOTH);
-   glDisable(GL_DEPTH_TEST);
-   glEnable(GL_CULL_FACE);
-   glEnable(GL_TEXTURE_2D);
-
-   glEnable(GL_FOG);
-   glFogi(GL_FOG_MODE, GL_EXP2);
-   glFogfv(GL_FOG_COLOR, fogcolor);
-
-   glFogf(GL_FOG_DENSITY, 0.06);
-   glHint(GL_FOG_HINT, GL_NICEST);
-
-   glEnable(GL_BLEND);
-   /*
-   glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
-   glEnable(GL_POLYGON_SMOOTH);
-   */
-
-   glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]);
-   glClear(GL_COLOR_BUFFER_BIT);
-}
-
-int
-main(int ac, char **av)
-{
-   fprintf(stderr,
-	   "Tunnel2 V1.0\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
-
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WIDTHC0, HEIGHTC0);
-   glutInit(&ac, av);
-
-   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
-
-#ifdef FX
-   if (fxMesaSelectCurrentBoard(0) < 0) {
-      fprintf(stderr, "The first Voodoo Graphics board is missing !?!?\n");
-      return -1;
-   }
-#endif
-   if (!(channel[0] = glutCreateWindow("Channel 0"))) {
-      fprintf(stderr, "Error, couldn't open window\n");
-      return -1;
-   }
-
-   reshapechannel0(WIDTHC0, HEIGHTC0);
-   init();
-   inittextures();
-   glutDisplayFunc(drawchannel0);
-   glutReshapeFunc(reshapechannel0);
-   glutKeyboardFunc(key);
-   glutSpecialFunc(special);
-
-#ifdef FX
-   if (fxMesaSelectCurrentBoard(1) < 0) {
-      fprintf(stderr, "The second Voodoo Graphics board is missing !\n");
-      exit(-1);
-   }
-#endif
-   glutInitWindowPosition(WIDTHC0, 0);
-   glutInitWindowSize(WIDTHC1, HEIGHTC1);
-   if (!(channel[1] = glutCreateWindow("Channel 1"))) {
-      fprintf(stderr, "Error, couldn't open window\n");
-      exit(-1);
-   }
-
-   reshapechannel1(WIDTHC1, HEIGHTC1);
-   init();
-   inittextures();
-   glutDisplayFunc(drawchannel1);
-   glutReshapeFunc(reshapechannel1);
-   glutKeyboardFunc(key);
-   glutSpecialFunc(special);
-
-   glutIdleFunc(drawall);
-
-   calcposobs();
-
-   glutMainLoop();
-
-   return 0;
-}
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/tunneldat.h b/nx-X11/extras/Mesa_6.4.1/progs/demos/tunneldat.h
deleted file mode 100644
index af1e52e1f..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/tunneldat.h
+++ /dev/null
@@ -1,395 +0,0 @@
-/* Object: skin_13 */
-
-#if defined(_MSC_VER) && defined(_WIN32)
-#pragma warning( disable : 4305 )	/* 'initializing' : truncation from 'const double' to 'float' */
-#endif
-
-static const int striplength_skin_13[] = {
-   10, 7, 3, 5, 5, 4, 4, 4, 4, 5, 3, 4, 5, 4, 4, 4, 4, 4, 4, 6,
-   6, 3, 6, 3, 3, 3, 3, 0
-};
-
-static const float stripdata_skin_13[] = {
-   0.415686, 0.415686, 0.415686, 1.000000, 0.000000, 1.500000, 2.000000,
-      4.000000, 0.000000, 0.341176, 0.341176, 0.341176, 1.000000, -0.500000,
-      1.500000, 4.000000, 4.000000, 0.000000, 0.545098, 0.545098, 0.545098,
-      1.000000, 0.000000, 1.000000, 2.000000, 4.000000, 2.000000, 0.435294,
-      0.435294, 0.435294, 1.000000, -0.500000, 1.000000, 4.000000, 4.000000,
-      2.000000, 0.517647, 0.517647, 0.517647, 1.000000, 0.000000, 0.500000,
-      2.000000, 4.000000, 4.000000, 0.450980, 0.450980, 0.450980, 1.000000,
-      -0.500000, 0.500000, 4.000000, 4.000000, 4.000000, 0.427451, 0.427451,
-      0.427451, 1.000000, 0.000000, 0.000000, 2.000000, 4.000000, 6.000000,
-      0.388235, 0.388235, 0.388235, 1.000000, -0.500000, 0.000000, 4.000000,
-      4.000000, 6.000000, 0.356863, 0.356863, 0.356863, 1.000000, 0.000000,
-      -0.500000, 2.000000, 4.000000, 8.000000, 0.333333, 0.333333, 0.333333,
-      1.000000, -0.500000, -0.500000, 4.000000, 4.000000, 8.000000,
-   0.435294, 0.435294, 0.435294, 1.000000, 1.500000, 1.000000, -4.000000,
-      4.000000, 2.000000, 0.415686, 0.415686, 0.415686, 1.000000, 1.000000,
-      1.500000, -2.000000, 4.000000, 0.000000, 0.545098, 0.545098, 0.545098,
-      1.000000, 1.000000, 1.000000, -2.000000, 4.000000, 2.000000, 0.450980,
-      0.450980, 0.450980, 1.000000, 0.500000, 1.500000, 0.000000, 4.000000,
-      0.000000, 0.600000, 0.600000, 0.600000, 1.000000, 0.500000, 1.000000,
-      0.000000, 4.000000, 2.000000, 0.415686, 0.415686, 0.415686, 1.000000,
-      0.000000, 1.500000, 2.000000, 4.000000, 0.000000, 0.545098, 0.545098,
-      0.545098, 1.000000, 0.000000, 1.000000, 2.000000, 4.000000, 2.000000,
-   0.435294, 0.435294, 0.435294, 1.000000, 1.500000, 1.000000, -4.000000,
-      4.000000, 2.000000, 0.341176, 0.341176, 0.341176, 1.000000, 1.500000,
-      1.500000, -4.000000, 4.000000, 0.000000, 0.415686, 0.415686, 0.415686,
-      1.000000, 1.000000, 1.500000, -2.000000, 4.000000, 0.000000,
-   0.356863, 0.356863, 0.356863, 1.000000, 0.000000, -0.500000, 2.000000,
-      4.000000, 8.000000, 0.364706, 0.364706, 0.364706, 1.000000, 0.500000,
-      -0.500000, 0.000000, 4.000000, 8.000000, 0.427451, 0.427451, 0.427451,
-      1.000000, 0.000000, 0.000000, 2.000000, 4.000000, 6.000000, 0.415686,
-      0.415686, 0.415686, 1.000000, 0.395020, -0.133318, 0.420032, 4.000000,
-      6.533272, 0.423529, 0.423529, 0.423529, 1.000000, 0.388550, -0.103582,
-      0.445932, 4.000000, 6.414327,
-   0.423529, 0.423529, 0.423529, 1.000000, 0.388550, -0.103582, 0.445932,
-      4.000000, 6.414327, 0.427451, 0.427451, 0.427451, 1.000000, 0.383423,
-      -0.069344, 0.466541, 4.000000, 6.277375, 0.427451, 0.427451, 0.427451,
-      1.000000, 0.000000, 0.000000, 2.000000, 4.000000, 6.000000, 0.435294,
-      0.435294, 0.435294, 1.000000, 0.380371, -0.034595, 0.478689, 4.000000,
-      6.138380, 0.439216, 0.439216, 0.439216, 1.000000, 0.379272, 0.000000,
-      0.482673, 4.000000, 6.000000,
-   0.407843, 0.407843, 0.407843, 1.000000, 0.414673, -0.191394, 0.341301,
-      4.000000, 6.765576, 0.411765, 0.411765, 0.411765, 1.000000, 0.403687,
-      -0.162957, 0.385368, 4.000000, 6.651829, 0.364706, 0.364706, 0.364706,
-      1.000000, 0.500000, -0.500000, 0.000000, 4.000000, 8.000000, 0.415686,
-      0.415686, 0.415686, 1.000000, 0.395020, -0.133318, 0.420032, 4.000000,
-      6.533272,
-   0.400000, 0.400000, 0.400000, 1.000000, 0.438232, -0.232438, 0.247284,
-      4.000000, 6.929754, 0.403922, 0.403922, 0.403922, 1.000000, 0.425171,
-      -0.212276, 0.299425, 4.000000, 6.849104, 0.364706, 0.364706, 0.364706,
-      1.000000, 0.500000, -0.500000, 0.000000, 4.000000, 8.000000, 0.407843,
-      0.407843, 0.407843, 1.000000, 0.414673, -0.191394, 0.341301, 4.000000,
-      6.765576,
-   0.396078, 0.396078, 0.396078, 1.000000, 0.467285, -0.260554, 0.130636,
-      4.000000, 7.042214, 0.400000, 0.400000, 0.400000, 1.000000, 0.453857,
-      -0.250068, 0.184711, 4.000000, 7.000273, 0.364706, 0.364706, 0.364706,
-      1.000000, 0.500000, -0.500000, 0.000000, 4.000000, 8.000000, 0.400000,
-      0.400000, 0.400000, 1.000000, 0.438232, -0.232438, 0.247284, 4.000000,
-      6.929754,
-   0.396078, 0.396078, 0.396078, 1.000000, 0.500000, -0.270672, 0.000000,
-      4.000000, 7.082688, 0.396078, 0.396078, 0.396078, 1.000000, 0.482788,
-      -0.267902, 0.068730, 4.000000, 7.071609, 0.364706, 0.364706, 0.364706,
-      1.000000, 0.500000, -0.500000, 0.000000, 4.000000, 8.000000, 0.396078,
-      0.396078, 0.396078, 1.000000, 0.467285, -0.260554, 0.130636, 4.000000,
-      7.042214,
-   0.439216, 0.439216, 0.439216, 1.000000, 0.379272, 0.000000, 0.482673,
-      4.000000, 6.000000, 0.474510, 0.474510, 0.474510, 1.000000, 0.379272,
-      0.180448, 0.482673, 4.000000, 5.278208, 0.517647, 0.517647, 0.517647,
-      1.000000, 0.000000, 0.500000, 2.000000, 4.000000, 4.000000, 0.513726,
-      0.513726, 0.513726, 1.000000, 0.379272, 0.360896, 0.482673, 4.000000,
-      4.556417, 0.545098, 0.545098, 0.545098, 1.000000, 0.379272, 0.500000,
-      0.482673, 4.000000, 4.000000,
-   0.545098, 0.545098, 0.545098, 1.000000, 0.379272, 0.500000, 0.482673,
-      4.000000, 4.000000, 0.545098, 0.545098, 0.545098, 1.000000, 0.000000,
-      1.000000, 2.000000, 4.000000, 2.000000, 0.517647, 0.517647, 0.517647,
-      1.000000, 0.000000, 0.500000, 2.000000, 4.000000, 4.000000,
-   0.600000, 0.600000, 0.600000, 1.000000, 0.500000, 1.000000, 0.000000,
-      4.000000, 2.000000, 0.545098, 0.545098, 0.545098, 1.000000, 0.000000,
-      1.000000, 2.000000, 4.000000, 2.000000, 0.552941, 0.552941, 0.552941,
-      1.000000, 0.379272, 0.541344, 0.482673, 4.000000, 3.834625, 0.545098,
-      0.545098, 0.545098, 1.000000, 0.379272, 0.500000, 0.482673, 4.000000,
-      4.000000,
-   0.552941, 0.552941, 0.552941, 1.000000, 0.379272, 0.541344, 0.482673,
-      4.000000, 3.834625, 0.556863, 0.556863, 0.556863, 1.000000, 0.459717,
-      0.541344, 0.160891, 4.000000, 3.834625, 0.600000, 0.600000, 0.600000,
-      1.000000, 0.500000, 1.000000, 0.000000, 4.000000, 2.000000, 0.556863,
-      0.556863, 0.556863, 1.000000, 0.500000, 0.541344, 0.000000, 4.000000,
-      3.834625, 0.556863, 0.556863, 0.556863, 1.000000, 0.540283, 0.541344,
-      -0.160891, 4.000000, 3.834625,
-   0.396078, 0.396078, 0.396078, 1.000000, 0.517212, -0.267902, -0.068730,
-      4.000000, 7.071609, 0.396078, 0.396078, 0.396078, 1.000000, 0.500000,
-      -0.270672, 0.000000, 4.000000, 7.082688, 0.356863, 0.356863, 0.356863,
-      1.000000, 1.000000, -0.500000, -2.000000, 4.000000, 8.000000, 0.364706,
-      0.364706, 0.364706, 1.000000, 0.500000, -0.500000, 0.000000, 4.000000,
-      8.000000,
-   0.400000, 0.400000, 0.400000, 1.000000, 0.546143, -0.250068, -0.184711,
-      4.000000, 7.000273, 0.396078, 0.396078, 0.396078, 1.000000, 0.532715,
-      -0.260554, -0.130636, 4.000000, 7.042214, 0.356863, 0.356863, 0.356863,
-      1.000000, 1.000000, -0.500000, -2.000000, 4.000000, 8.000000, 0.396078,
-      0.396078, 0.396078, 1.000000, 0.517212, -0.267902, -0.068730, 4.000000,
-      7.071609,
-   0.403922, 0.403922, 0.403922, 1.000000, 0.574829, -0.212276, -0.299425,
-      4.000000, 6.849104, 0.400000, 0.400000, 0.400000, 1.000000, 0.561768,
-      -0.232438, -0.247284, 4.000000, 6.929754, 0.356863, 0.356863, 0.356863,
-      1.000000, 1.000000, -0.500000, -2.000000, 4.000000, 8.000000, 0.400000,
-      0.400000, 0.400000, 1.000000, 0.546143, -0.250068, -0.184711, 4.000000,
-      7.000273,
-   0.411765, 0.411765, 0.411765, 1.000000, 0.596313, -0.162957, -0.385368,
-      4.000000, 6.651829, 0.407843, 0.407843, 0.407843, 1.000000, 0.585327,
-      -0.191394, -0.341301, 4.000000, 6.765576, 0.356863, 0.356863, 0.356863,
-      1.000000, 1.000000, -0.500000, -2.000000, 4.000000, 8.000000, 0.403922,
-      0.403922, 0.403922, 1.000000, 0.574829, -0.212276, -0.299425, 4.000000,
-      6.849104,
-   0.423529, 0.423529, 0.423529, 1.000000, 0.611450, -0.103582, -0.445931,
-      4.000000, 6.414327, 0.415686, 0.415686, 0.415686, 1.000000, 0.604980,
-      -0.133318, -0.420033, 4.000000, 6.533272, 0.356863, 0.356863, 0.356863,
-      1.000000, 1.000000, -0.500000, -2.000000, 4.000000, 8.000000, 0.411765,
-      0.411765, 0.411765, 1.000000, 0.596313, -0.162957, -0.385368, 4.000000,
-      6.651829,
-   0.435294, 0.435294, 0.435294, 1.000000, 0.619629, -0.034595, -0.478689,
-      4.000000, 6.138380, 0.427451, 0.427451, 0.427451, 1.000000, 0.616577,
-      -0.069344, -0.466541, 4.000000, 6.277375, 0.356863, 0.356863, 0.356863,
-      1.000000, 1.000000, -0.500000, -2.000000, 4.000000, 8.000000, 0.423529,
-      0.423529, 0.423529, 1.000000, 0.611450, -0.103582, -0.445931, 4.000000,
-      6.414327,
-   0.513726, 0.513726, 0.513726, 1.000000, 0.620728, 0.360896, -0.482673,
-      4.000000, 4.556417, 0.474510, 0.474510, 0.474510, 1.000000, 0.620728,
-      0.180448, -0.482673, 4.000000, 5.278208, 0.427451, 0.427451, 0.427451,
-      1.000000, 1.000000, 0.000000, -2.000000, 4.000000, 6.000000, 0.439216,
-      0.439216, 0.439216, 1.000000, 0.620728, 0.000000, -0.482673, 4.000000,
-      6.000000, 0.356863, 0.356863, 0.356863, 1.000000, 1.000000, -0.500000,
-      -2.000000, 4.000000, 8.000000, 0.435294, 0.435294, 0.435294, 1.000000,
-      0.619629, -0.034595, -0.478689, 4.000000, 6.138380,
-   0.333333, 0.333333, 0.333333, 1.000000, 1.500000, -0.500000, -4.000000,
-      4.000000, 8.000000, 0.388235, 0.388235, 0.388235, 1.000000, 1.500000,
-      0.000000, -4.000000, 4.000000, 6.000000, 0.427451, 0.427451, 0.427451,
-      1.000000, 1.000000, 0.000000, -2.000000, 4.000000, 6.000000, 0.517647,
-      0.517647, 0.517647, 1.000000, 1.000000, 0.500000, -2.000000, 4.000000,
-      4.000000, 0.513726, 0.513726, 0.513726, 1.000000, 0.620728, 0.360896,
-      -0.482673, 4.000000, 4.556417, 0.545098, 0.545098, 0.545098, 1.000000,
-      0.620728, 0.500000, -0.482673, 4.000000, 4.000000,
-   0.333333, 0.333333, 0.333333, 1.000000, 1.500000, -0.500000, -4.000000,
-      4.000000, 8.000000, 0.427451, 0.427451, 0.427451, 1.000000, 1.000000,
-      0.000000, -2.000000, 4.000000, 6.000000, 0.356863, 0.356863, 0.356863,
-      1.000000, 1.000000, -0.500000, -2.000000, 4.000000, 8.000000,
-   0.556863, 0.556863, 0.556863, 1.000000, 0.540283, 0.541344, -0.160891,
-      4.000000, 3.834625, 0.552941, 0.552941, 0.552941, 1.000000, 0.620728,
-      0.541344, -0.482673, 4.000000, 3.834625, 0.545098, 0.545098, 0.545098,
-      1.000000, 1.000000, 1.000000, -2.000000, 4.000000, 2.000000, 0.517647,
-      0.517647, 0.517647, 1.000000, 1.000000, 0.500000, -2.000000, 4.000000,
-      4.000000, 0.450980, 0.450980, 0.450980, 1.000000, 1.500000, 0.500000,
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-};
-
-
-/* Object: skin_12 */
-
-static const int striplength_skin_12[] = {
-   12, 12, 12, 12, 12, 0
-};
-
-static const float stripdata_skin_12[] = {
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-};
-
-
-/* Object: skin_11 */
-
-static const int striplength_skin_11[] = {
-   12, 12, 12, 12, 12, 0
-};
-
-static const float stripdata_skin_11[] = {
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-
-
-/* Object: skin_9 */
-
-static const int striplength_skin_9[] = {
-   18, 0
-};
-
-static const float stripdata_skin_9[] = {
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-      4.000000, -4.000000, 8.000000
-};
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/winpos.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/winpos.c
deleted file mode 100644
index 2ee1df69f..000000000
--- a/nx-X11/extras/Mesa_6.4.1/progs/demos/winpos.c
+++ /dev/null
@@ -1,118 +0,0 @@
-
-/*
- * Example of how to use the GL_MESA_window_pos extension.
- * Brian Paul   This file is in the public domain.
- */
-
-#include <math.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#ifdef _WIN32
-#include <windows.h>
-#endif
-#define GL_GLEXT_PROTOTYPES
-#include "GL/glut.h"
-
-#include "readtex.h"
-
-#define IMAGE_FILE "../images/girl.rgb"
-
-
-#ifndef M_PI
-#  define M_PI 3.14159265
-#endif
-
-
-
-static GLubyte *Image;
-static int ImgWidth, ImgHeight;
-static GLenum ImgFormat;
-
-typedef void (APIENTRY * PFNWINDOWPOSFUNC)(GLfloat x, GLfloat y);
-static PFNWINDOWPOSFUNC WindowPosFunc;
-
-static void draw( void )
-{
-   GLfloat angle;
-
-   glClear( GL_COLOR_BUFFER_BIT );
-
-   for (angle = -45.0; angle <= 135.0; angle += 10.0) {
-      GLfloat x = 50.0 + 200.0 * cos( angle * M_PI / 180.0 );
-      GLfloat y = 50.0 + 200.0 * sin( angle * M_PI / 180.0 );
-
-      /* Don't need to worry about the modelview or projection matrices!!! */
-      (*WindowPosFunc)( x, y );
-
-      glDrawPixels( ImgWidth, ImgHeight, ImgFormat, GL_UNSIGNED_BYTE, Image );
-   }
-   glFinish();
-}
-
-
-static void key( unsigned char key, int x, int y )
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 27:
-         exit(0);
-   }
-}
-
-
-/* new window size or exposure */
-static void reshape( int width, int height )
-{
-   glViewport(0, 0, (GLint)width, (GLint)height);
-}
-
-
-static void init( void )
-{
-#ifdef GL_ARB_window_pos
-   if (glutExtensionSupported("GL_ARB_window_pos")) {
-      printf("Using GL_ARB_window_pos\n");
-      WindowPosFunc = &glWindowPos2fARB;
-   }
-   else
-#elif defined(GL_ARB_window_pos)
-   if (glutExtensionSupported("GL_MESA_window_pos")) {
-      printf("Using GL_MESA_window_pos\n");
-      WindowPosFunc = &glWindowPos2fMESA;
-   }
-   else
-#endif
-   {
-      printf("Sorry, GL_ARB/MESA_window_pos extension not available.\n");
-      exit(1);
-   }
-
-   Image = LoadRGBImage( IMAGE_FILE, &ImgWidth, &ImgHeight, &ImgFormat );
-   if (!Image) {
-      printf("Couldn't read %s\n", IMAGE_FILE);
-      exit(0);
-   }
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-}
-
-
-int main( int argc, char *argv[] )
-{
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(500, 500);
-   glutInitDisplayMode( GLUT_RGB );
-
-   if (glutCreateWindow("winpos") <= 0) {
-      exit(0);
-   }
-
-   init();
-
-   glutReshapeFunc( reshape );
-   glutKeyboardFunc( key );
-   glutDisplayFunc( draw );
-   glutMainLoop();
-   return 0;
-}
author	Mike Gabriel <mike.gabriel@das-netzwerkteam.de>	2017-08-30 16:54:24 +0200
committer	Mike Gabriel <mike.gabriel@das-netzwerkteam.de>	2017-08-30 16:55:09 +0200
commit	5ecf04c925374c7a3c8d85765053e3cd9c952d67 (patch)
tree	f55241c6ce2668f153ab8f9a966fb36aab8a801d /nx-X11/extras/Mesa_6.4.1/progs/demos
parent	709bce6cf17d472e65afc845fff87267499d9ad7 (diff)
download	nx-libs-5ecf04c925374c7a3c8d85765053e3cd9c952d67.tar.gz nx-libs-5ecf04c925374c7a3c8d85765053e3cd9c952d67.tar.bz2 nx-libs-5ecf04c925374c7a3c8d85765053e3cd9c952d67.zip