Data processing system and apparatus with graphic event priority levels for storage and retrieval of different graphic event data

摘要

A data processing apparatus with a receiver for receiving image data having a plurality of graphic events. A controller for controlling an image data storage memory so that the received image data is stored in the memory in the order of from a higher display priority level of the graphic events based on prescribed display priority levels of the graphics events. The controller controlling the image data storage memory so image data having a lower priority stored in the memory is outputted from the memory to a display drive controller until image data having the higher priority is started to be stored in the memory.