| 摘要 |
A graphic processing apparatus, comprising: a plurality of stamp information storages provided corresponding to a plurality of line equations, respectively, capable of storing values obtained by inputting coordinates relating to a stamp including a plurality of pixels adjacent to each other to the corresponding line equation; a plurality of information selectors provided corresponding to said plurality of line equations, respectively, which select alternately one of information stored in said plurality of stamp information storages; a plurality of linear equation calculators provided corresponding to said plurality of line equations, which input coordinates relating to a current stamp to the corresponding linear equation based on information selected by said information selectors in order to calculate a value of the corresponding linear equation, and store the calculation results in the corresponding stamp information storage; inside/outside determination unit configured to determine whether or not a subsequent stamp adjacent to a current stamp is located inside of an area enclosed by said plurality of linear equations, based on the calculation results of said linear equation calculators corresponding to said plurality of linear equations; and a coordinate calculation unit configured to calculate a coordinate of a representative pixel in the current stamp.
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