| 摘要 |
A redrawing area displaying unit sets a redrawing area SD based on an area redrawn by a drawing processing unit in each frame, and displays an image representing the set redrawing area SD by overlapping the image on a GUI. Each time a frame of the GUI is updated by the drawing processing unit, a target redrawing area displaying unit measures a drawing processing time TS of the updated frame, and when the measured drawing processing time TS exceeds a predetermined reference processing time TR, calculates a target redrawing area MD that is drawable within the reference processing time TR, and overlaps an image representing the calculated target redrawing area MD on an excess frame and displays this image. |
