PROBLEM TO BE SOLVED: To easily utilize an image platted in a frame buffer as a texture at a high speed without copying, by comprising a table for storing a starting address, a width and a height of the frame buffer to be stored as the texture. SOLUTION: A memory 200 comprises the frame buffers A210-C230, and a texture management table 240. A frame buffer judging part 120 of a graphic processer 100 stores either the frame buffer of present plotting or the frame buffer during display. The stored frame buffer can be utilized as the texture. The data on the starting address, width and height of the frame buffer is stored in the table 240. The starting address of the frame buffer and the starting address of the stored frame buffer are changed with each other.
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