progs/trivial: Use glew where needed.

Builds on windows now.

progs/SConstruct

@@ -10,9 +10,23 @@ env = Environment(
 
 
 # Use Mesa's headers and libs
-if 0:
+if 1:
+    build_topdir = 'build'
+    build_subdir = env['platform']
+    if env['machine'] != 'generic':
+        build_subdir += '-' + env['machine']
+    if env['debug']:
+        build_subdir += "-debug"
+    if env['profile']:
+        build_subdir += "-profile"
+    build_dir = os.path.join(build_topdir, build_subdir)
+
+    env.Append(CPPDEFINES = ['GLEW_STATIC'])
     env.Append(CPPPATH = ['#../include'])
-    env.Append(LIBPATH = ['#../lib'])
+    env.Append(LIBPATH = [
+        '#../' + build_dir + '/glew/',
+        '#../' + build_dir + '/glut/glx',
+    ])
 
 
 conf = Configure(env)
@@ -32,6 +46,13 @@ if conf.CheckCHeader('GL/glut.h'):
         env['GLUT_LIB'] = 'glut'
     env['GLUT'] = True
 
+# GLEW
+env['GLEW'] = False
+if conf.CheckCHeader('GL/glew.h'):
+    env['GLEW_LIB'] = 'glew'
+    env['GLEW'] = True
+    env.Prepend(LIBS = ['glew'])
+
 conf.Finish()
 
 

progs/trivial/Makefile

@@ -8,7 +8,7 @@ TOP = ../..
 include $(TOP)/configs/current
 
 
-LIBS = -L$(TOP)/$(LIB_DIR) -l$(GLUT_LIB) -l$(GLU_LIB) -l$(GL_LIB) $(APP_LIB_DEPS)
+LIBS = -L$(TOP)/$(LIB_DIR) -l $(GLEW_LIB) -l$(GLUT_LIB) -l$(GLU_LIB) -l$(GL_LIB) $(APP_LIB_DEPS)
 
 SOURCES = \
 	clear-fbo-tex.c \

progs/trivial/clear-fbo-tex.c

@@ -5,7 +5,7 @@
 #include <math.h>
 #include <string.h>
 
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -210,6 +210,8 @@ main( int argc, char *argv[] )
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/clear-fbo.c

@@ -5,7 +5,7 @@
 #include <math.h>
 #include <string.h>
 
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -195,6 +195,8 @@ main( int argc, char *argv[] )
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/drawarrays.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -118,6 +118,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/drawelements.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 GLfloat verts[][4] = {
@@ -111,6 +111,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/drawrange.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 GLfloat verts[][4] = {
@@ -109,6 +109,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/lineloop-elts.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 GLfloat verts[][4] = {
@@ -111,6 +111,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/long-fixed-func.c

@@ -5,7 +5,7 @@
 
 
 
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -142,6 +142,7 @@ main(int argc, char **argv)
     if (glutCreateWindow("tri-long-fixedfunc") == GL_FALSE) {
        exit(1);
     }
+    glewInit();
     glutReshapeFunc(Reshape);
     glutKeyboardFunc(Key);
     glutDisplayFunc(Draw);

progs/trivial/point-param.c

@@ -22,7 +22,7 @@
  * OF THIS SOFTWARE.
  */
 
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <math.h>
 #include <stdio.h>
 #include <string.h>
@@ -146,6 +146,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/quad-tex-3d.c

@@ -25,6 +25,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -167,6 +168,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/quad-tex-pbo.c

@@ -22,7 +22,7 @@
  * OF THIS SOFTWARE.
  */
 
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 
 #include <stdio.h>
 #include <string.h>
@@ -171,6 +171,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/readpixels.c

@@ -3,7 +3,7 @@
  */
 
 
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -91,6 +91,8 @@ int main(int argc, char **argv)
    if (argc > 1)
       Zoom = atof(argv[1]);
 
+   glewInit();
+
    Init();
 
    glutReshapeFunc(Reshape);

progs/trivial/tri-array-interleaved.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 struct {
@@ -110,6 +110,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/tri-blend-color.c

@@ -25,6 +25,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -131,6 +132,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/tri-blend-max.c

@@ -41,8 +41,9 @@
  *  to demonstrate the effect order has on alpha blending results.
  *  Use the 't' key to toggle the order of drawing polygons.
  */
-#include <GL/glut.h>
 #include <stdlib.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
 
 static int leftFirst = GL_TRUE;
 
@@ -136,6 +137,7 @@ int main(int argc, char** argv)
    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize (200, 200);
    glutCreateWindow (argv[0]);
+   glewInit();
    init();
    glutReshapeFunc (reshape);
    glutKeyboardFunc (keyboard);

progs/trivial/tri-blend-min.c

@@ -41,8 +41,9 @@
  *  to demonstrate the effect order has on alpha blending results.
  *  Use the 't' key to toggle the order of drawing polygons.
  */
-#include <GL/glut.h>
 #include <stdlib.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
 
 static int leftFirst = GL_TRUE;
 
@@ -136,6 +137,7 @@ int main(int argc, char** argv)
    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize (200, 200);
    glutCreateWindow (argv[0]);
+   glewInit();
    init();
    glutReshapeFunc (reshape);
    glutKeyboardFunc (keyboard);

progs/trivial/tri-blend-revsub.c

@@ -41,8 +41,9 @@
  *  to demonstrate the effect order has on alpha blending results.
  *  Use the 't' key to toggle the order of drawing polygons.
  */
-#include <GL/glut.h>
 #include <stdlib.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
 
 static int leftFirst = GL_TRUE;
 
@@ -136,6 +137,7 @@ int main(int argc, char** argv)
    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize (200, 200);
    glutCreateWindow (argv[0]);
+   glewInit();
    init();
    glutReshapeFunc (reshape);
    glutKeyboardFunc (keyboard);

progs/trivial/tri-blend-sub.c

@@ -41,8 +41,9 @@
  *  to demonstrate the effect order has on alpha blending results.
  *  Use the 't' key to toggle the order of drawing polygons.
  */
-#include <GL/glut.h>
 #include <stdlib.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
 
 static int leftFirst = GL_TRUE;
 
@@ -136,6 +137,7 @@ int main(int argc, char** argv)
    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize (200, 200);
    glutCreateWindow (argv[0]);
+   glewInit();
    init();
    glutReshapeFunc (reshape);
    glutKeyboardFunc (keyboard);

progs/trivial/tri-fbo-tex.c

@@ -9,7 +9,7 @@
  */
 
 
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 #include <assert.h>
 #include <stdio.h>
@@ -256,6 +256,7 @@ main(int argc, char *argv[])
    glutInitWindowSize(Width, Height);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    Win = glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc(Reshape);
    glutKeyboardFunc(Key);
    glutDisplayFunc(Display);

progs/trivial/tri-fbo.c

@@ -5,7 +5,7 @@
 #include <math.h>
 #include <string.h>
 
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -190,6 +190,8 @@ main( int argc, char *argv[] )
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/tri-fp-const-imm.c

@@ -25,7 +25,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -159,6 +159,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/tri-fp.c

@@ -25,7 +25,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -157,6 +157,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/tri-query.c

@@ -25,7 +25,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -148,6 +148,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/tri-tex-3d.c

@@ -25,6 +25,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -160,6 +161,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/vbo-drawarrays.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -124,6 +124,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vbo-drawelements.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 struct {
@@ -128,6 +128,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vbo-drawrange.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 #define ELTOBJ 0
@@ -136,6 +136,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-array-int.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 GLint verts[][4] = {
@@ -108,6 +108,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-array.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 GLfloat verts[][4] = {
@@ -108,6 +108,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-clip.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -93,6 +93,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-line-clip.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -107,6 +107,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-tri-cb-pos.c

@@ -5,7 +5,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -146,11 +146,13 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);
     glutKeyboardFunc(Key);
     glutDisplayFunc(Draw);
     glutMainLoop();
-	return 0;
+    return 0;
 }

progs/trivial/vp-tri-cb-tex.c

@@ -5,7 +5,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 
@@ -179,6 +179,8 @@ int main(int argc, char **argv)
 	exit(1);
     }
 
+    glewInit();
+
     Init();
 
     glutReshapeFunc(Reshape);

progs/trivial/vp-tri-cb.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -98,6 +98,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-tri-imm.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -92,6 +92,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-tri-swap.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -94,6 +94,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-tri-tex.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -128,6 +128,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-tri.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -95,6 +95,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_DEPTH | GLUT_RGB | GLUT_SINGLE );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );

progs/trivial/vp-unfilled.c

@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -95,6 +95,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );