Updates: Avoid glitches when flipping stereo in frontonly mode.
Updates: Avoid glitches when flipping stereo in frontonly mode.

deniskropp/DirectFB,mtsekm/test,kevleyski/DirectFB-1,Distrotech/DirectFB,deniskropp/DirectFB,lancebaiyouview/DirectFB,djbclark/directfb-core-DirectFB,Distrotech/DirectFB,kevleyski/DirectFB-1,jcdubois/DirectFB,lancebaiyouview/DirectFB,deniskropp/DirectFB,kaostao/directfb,sklnet/DirectFB,kevleyski/directfb,dfbdok/DirectFB1,kaostao/directfb,sklnet/DirectFB,djbclark/directfb-core-DirectFB,kevleyski/directfb,kevleyski/directfb,mtsekm/test,DirectFB/directfb,djbclark/directfb-core-DirectFB,DirectFB/directfb,jcdubois/DirectFB,kevleyski/DirectFB-1,lancebaiyouview/DirectFB,kaostao/directfb,sklnet/DirectFB,jcdubois/DirectFB,kevleyski/DirectFB-1,mtsekm/test,DirectFB/directfb,sklnet/DirectFB,djbclark/directfb-core-DirectFB,dfbdok/DirectFB1,dfbdok/DirectFB1,deniskropp/DirectFB,lancebaiyouview/DirectFB,kevleyski/directfb,Distrotech/DirectFB