| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To strictly prevent lost frames while improving the processing efficiency in the processing of the images by the double buffering. <P>SOLUTION: In the game machine, a CPU for the control of the performances reads out the image data based on the display control execution data out of the process data in the image control processing. The background image data read out is developed on a background frame buffer A or a background frame buffer B according to the state of the background buffer indication flag. When the development of the background image is started, the state of the background buffer indication flag is switched over while the special pattern image read out is made to develop on a front frame buffer. In the game machine, a synthetic image is generated by synthesizing the background image data developed on one background frame buffer corresponding to the state of the background buffer indication flag and the special pattern image data developed on the front frame buffer while the image signal is outputted to display as image the synthetic image generated. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
