Added DFB_PIXELFORMAT_INV_ALPHA(format).
Added DFB_PIXELFORMAT_INV_ALPHA(format).

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