Renderer for presenting an image frame by help of a set of displaying commands

摘要

The invention is related to a device for presenting, an image frame by help of a set of displaying commands wherein a displaying command comprises a displaying area and a displaying content. The device comprises means for adapting a first and/or a second displaying command set such that an adapted displaying command sets comprises displaying areas which do not intersect with any displaying area of the same set. Furthermore, the displaying areas of an adapted set cover a display area the image frames are displayed on. The device further determines displaying commands of the adapted second set not comprised in the adapted first set. Then, the determined displaying commands are executed. Adaptation makes comparison of displaying commands suitable for excluding areas from displaying/blitting/clearing.