* Group all GLUT exit cleanup tasks in one place, __glutExitCleanup().

* Automatically leave game mode if it's still active at exit
 * Remove explicit game mode cleanup from testbed app.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37822 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/libs/mesa/glut/glutInit.cpp

@@ -168,7 +168,7 @@ void glutInit(int *argcp, char **argv) {
       break;
     }
   }
-  
+
   __glutInit();  /* Create BApplication first so DisplayWidth() works */
   if (geometry) {
     int flags, x, y, width, height;
@@ -225,14 +225,25 @@ void __glutInit() {
   bigtime_t unused;
   __glutInitTime(&unused);
 
-  /* set atexit() function to destroy all windows before exiting */
-  if(atexit(__glutDestroyAllWindows))
+  /* set atexit() function to cleanup before exiting */
+  if(atexit(__glutExitCleanup))
   	__glutFatalError("can't set exit handler");
-  
+
   /* similarly, destroy all windows on CTRL-C */
   signal(SIGINT, sigHandler);
 }
 
+
+void
+__glutExitCleanup()
+{
+	if (glutGameModeGet(GLUT_GAME_MODE_ACTIVE) > 0)
+		// Try to restore initial screen mode...
+		glutLeaveGameMode();
+
+	__glutDestroyAllWindows();
+}
+
 /***********************************************************
  *	FUNCTION:	glutInitWindowPosition (2.2)
  *

src/libs/mesa/glut/glutint.h

@@ -790,6 +790,7 @@ extern HDC XHDC;
 /* private routines from glutInit.cpp */
 void __glutInitTime(bigtime_t *beginning);
 void __glutInit();
+void __glutExitCleanup();
 
 /* private routines from glutMenu.cpp */
 class GlutMenu;         // avoid including glutMenu.h

src/tests/kits/opengl/glut/game_mode/game_mode.c

@@ -157,14 +157,9 @@ init(void)
 
 
 void
-clean_exit(void)
+on_exit(void)
 {
 	printf("Exit.\n");
-
-	if (glutGameModeGet(GLUT_GAME_MODE_ACTIVE)) {
- 		printf("glutLeaveGameMode()\n");
-		glutLeaveGameMode();
-	}
 }
 
 
@@ -226,7 +221,7 @@ main(int argc, char **argv)
 
 	init();
 
-	atexit(clean_exit);
+	atexit(on_exit);
 	glutMainLoop();
 
 	return 0;