Graphic data generation device with frame buffer regions for normal and size reduced graphics data

摘要

Second graphic data for display (58-2) is obtained by performing reduction processing using over-sampling on first graphic data (58-1) corresponding to an image generated by performing texture mapping processing based on polygon data, whereby the resolution of an image comprising the first graphic data is enhanced, maintaining the memory capacity minimized, so that the display resolution of the second graphic data is enhanced. Further, each pixel of a component of the second graphic data is the average value of four adjacent pixels in the first graphic data. Thus, for example, a 16 bit direct color image is equivalent to a 24-bit full color image.