Index: gloss.c
===================================================================
RCS file: /cvsroot/mesa3d/Mesa/demos/gloss.c,v
retrieving revision 1.3
diff -u -r1.3 gloss.c
--- gloss.c	1999/10/26 17:08:31	1.3
+++ gloss.c	2000/08/10 21:17:10
@@ -55,9 +55,9 @@
 static GLint T0 = 0;
 static GLint Frames = 0;
 
+static GLint stereo = 0;
 
 
-
 static void Idle( void )
 {
    if (Animate) {
@@ -70,6 +70,23 @@
 
 static void Display( void )
 {
+   static GLint left=0;
+
+   if (stereo) {
+     left = 1 - left;
+     if (left) {
+       glMatrixMode( GL_MODELVIEW );
+       glLoadIdentity();
+       glTranslatef( 2, 0.0, -380.0 );
+       glDrawBuffer( GL_BACK_LEFT );
+     }else{
+       glMatrixMode( GL_MODELVIEW );
+       glLoadIdentity();
+       glTranslatef( -2, 0.0, -380.0 );
+       glDrawBuffer( GL_BACK_RIGHT );
+     }
+   }
+  
    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
 
    glPushMatrix();
@@ -226,6 +243,7 @@
 
 static void Init( int argc, char *argv[] )
 {
+   int i;
    /* Cylinder object */
    {
       static GLfloat height = 100.0;
@@ -335,22 +353,36 @@
    glEnable(GL_DEPTH_TEST);
    glEnable(GL_NORMALIZE);
 
-   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));
+   for (i = 1; i < argc; i++) {
+      if (!strcmp(argv[i], "-info")) {
+         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));
+	 return;
+      }
    }
 }
 
 
 int main( int argc, char *argv[] )
 {
+   int i;
    glutInit( &argc, argv );
    glutInitWindowSize( 500, 500 );
+
 
-   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+   for (i = 1; i < argc; i++) {
+     if (!strcmp(argv[i], "-stereo")) {
+       stereo = 1;
+     }
+   }
 
+   if (stereo)
+     glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STEREO);
+   else
+     glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+     
    glutCreateWindow(argv[0] );
 
    Init(argc, argv);