progs/trivial: Redraw upon keypress.

(cherry picked from commit 3790c6a13b)

progs/trivial/clear-fbo-tex.c

@@ -88,7 +88,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/clear-fbo.c

@@ -73,7 +73,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/clear-random.c

@@ -61,7 +61,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(0);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/clear-scissor.c

@@ -38,7 +38,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
     glutPostRedisplay();
 }

progs/trivial/clear.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(0);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/createwin.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-begin-call-end.c

@@ -87,7 +87,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-dangling.c

@@ -74,7 +74,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-edgeflag-dangling.c

@@ -76,7 +76,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-edgeflag.c

@@ -81,7 +81,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-flat-tri.c

@@ -93,7 +93,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-mat-tri.c

@@ -103,7 +103,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-recursive-call.c

@@ -118,7 +118,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-tri-flat-tri.c

@@ -99,7 +99,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/dlist-tri-mat-tri.c

@@ -102,7 +102,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-cull.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-flat.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-stipple-wide.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-userclip-clip.c

@@ -66,7 +66,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-userclip-nop-clip.c

@@ -66,7 +66,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-userclip-nop.c

@@ -66,7 +66,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-userclip.c

@@ -66,7 +66,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line-wide.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/line.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/lineloop-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/lineloop.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/linestrip-stipple-wide.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/linestrip-stipple.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/point-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/point-param.c

@@ -59,7 +59,7 @@ static void Key(unsigned char key, int x, int y)
     case 27:
 	exit(1);
     default:
-	return;
+	break;
     }
     glutPostRedisplay();
 }

progs/trivial/point-sprite.c

@@ -96,7 +96,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/point-wide-smooth.c

@@ -63,7 +63,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/point-wide.c

@@ -63,7 +63,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/point.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/poly-flat-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/poly-flat-unfilled-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/poly-flat.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/poly-unfilled.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/poly.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-clip-all-vertices.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-degenerate.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-flat.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-offset-factor.c

@@ -55,7 +55,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-offset-unfilled.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-offset-units.c

@@ -55,7 +55,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-tex-alpha.c

@@ -88,7 +88,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-tex-pbo.c

@@ -105,7 +105,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-unfilled-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-unfilled-stipple.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad-unfilled.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quad.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quads.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quadstrip-cont.c

@@ -57,7 +57,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quadstrip-flat.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/quadstrip.c

@@ -57,7 +57,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/readpixels.c

@@ -39,7 +39,7 @@ static void Key(unsigned char key, int x, int y)
    case 27:
       exit(0);
    default:
-      return;
+      break;
    }
    glutPostRedisplay();
 }

progs/trivial/tri-alpha-tex.c

@@ -88,7 +88,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-alpha.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-blend-color.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-clear.c

@@ -63,7 +63,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-clip.c

@@ -56,7 +56,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
     glutPostRedisplay();
 }

progs/trivial/tri-cull-both.c

@@ -65,7 +65,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-dlist.c

@@ -75,7 +75,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-fbo.c

@@ -75,7 +75,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-flat-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-flat.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-fog.c

@@ -72,7 +72,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

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

@@ -92,7 +92,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-fp.c

@@ -90,7 +90,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-lit-material.c

@@ -65,7 +65,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-lit.c

@@ -65,7 +65,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-multitex-vbo.c

@@ -192,7 +192,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-orig.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-query.c

@@ -72,7 +72,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-scissor-tri.c

@@ -63,7 +63,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-square.c

@@ -63,7 +63,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-stipple.c

@@ -77,7 +77,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

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

@@ -97,7 +97,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-tex.c

@@ -94,7 +94,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-tri.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-unfilled-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-unfilled-edgeflag.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-unfilled-point.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-unfilled-smooth.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-unfilled-tri-lit.c

@@ -65,7 +65,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-unfilled-userclip-stip.c

@@ -67,7 +67,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-unfilled-userclip.c

@@ -66,7 +66,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-unfilled.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-userclip.c

@@ -66,7 +66,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-z-9.c

@@ -61,7 +61,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tri-z-eq.c

@@ -61,7 +61,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/trifan-flat-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/trifan-flat-unfilled-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/trifan-flat.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/trifan-unfilled.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/trifan.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tristrip-clip.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();

progs/trivial/tristrip-flat.c

@@ -62,7 +62,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();