| 摘要 |
PURPOSE:To execute the real time processing of a natural image by generating simultaneously plural painting-out picture element data by plural DDAs, and also, allowing them to keep pace with each other, and writing the painting-out picture element data into the block memory concerned. CONSTITUTION:Based on a control signal outputted from a linear interpolation computing element (DDA) control means, picture element data for constituting each different segment running along a scan line are generated simultaneously, and based on a control signal generated by timing control means 71a, 71b, ..., painting-out picture element data can be written into the corresponding block memories 51a, 51b, .... Accordingly, the painting-out picture element data generated simultaneously by plural DDAs are written simultaneously into the block memories concerned, respectively. In such a way, the time required for data generation per one picture element, and the time required for data write are shortened, a polygon painting-out speed as a whole is improved, and it can be attained that a painting-out graphic display is executed in a real time. |
