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-rw-r--r--src/glut/directfb/NOTES9
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+DirectFB GLUT Implementation NOTES
+----------------------------------
+
+* To have high performance rendering, it's really important to
+ use glutEnterGameMode() instead of glutCreateWindow()/glutFullScreen().
+ You can also force a windowed application to game mode by setting
+ the environment variable "__GLUT_GAME_MODE".
+
+