OVERLAPPING ORDER CONTROL METHOD OF A PLURALITY OF GRAPHIC IMAGE LAYERS CAPABLE OF EFFECTIVELY CONTROLLING THE OVERLAPPING ORDER OF AN APPLICATION LAYER ON A SCREEN WHEN A PLURALITY OF APPLICATIONS COEXISTS ON A SCREEN USNG A DATA BROADCASTING STANDARD BASED ON MHP

摘要

PURPOSE: An overlapping order control method of a plurality of graphic image layers is provided to not require the use of additional memory due to a message queue and to remove overhead which is generated from bit copy calculation according to layer integration.;CONSTITUTION: A plurality of applications is executed(S11). Graphic drawing function call is detected from one application(S12). A backup calculation result of the called graphic drawing is stored. A drawing calculation for an output is performed based on the layer order information of the application and backup calculation result of the graphic drawing. A drawing calculation result for an output is stored in graphic memory.;COPYRIGHT KIPO 2011