Data resampler for data processing system

(-- 57) summary -- the data re-extracting apparatus for data processing systems for the data sample which approached logically, It has a memory subsystem (120a) for storing the sample which is going to be drawn, and a digital differential analyzer (401) for carrying out an interpolation corner address generation for a set of interpolation splinter groups. A re-extracting apparatus receives an interpolation corner address, and is equipped with the fetch unit (402) for generating four source addresses of the sample which is going to be fetched from the memory subsystem (120a) again. A re-extracting apparatus is equipped with the 1st FIFO memory (90d) for holding the generated interpolation splinter group again, and the 2nd FIFO memory (90a) holding pixel data. A re-extracting apparatus is further equipped with an interpolation unit (403), this interpolation unit computes a pixel, as a result of being drawn, this result assembles a pixel to a memory word, and it outputs this word through the 3rd FIFO memory (90c).