| 摘要 |
PROBLEM TO BE SOLVED: To transfer animation video data to a VRAM while converting the position and the shape of an animation by subjecting the vertical address and the horizontal address to linear conversion by an address filter circuit. SOLUTION: A color signal conversion circuit which converts YUV signals to RGB signals is provided in a video decoder 52, and a digital component video signal DS (animation video data) is transferred to a video controller 34 by a transfer controller 32. The address outputted from the controller 32 is subjected to filtering processing by an address filter circuit 44 and is outputted into a bus 20, and animation video data is subjected to filtering processing by a data filter circuit 46 and is outputted onto the bus 20. The filter circuit 44 subjects addresses (horizontal address (x) and vertical address (y)) to two-dimensional linear conversion to perform scaling, rotation, parallel movement, etc., of pictures. |
