[SDL] moving screen when u change resolution

zed zeek billybolluxbouncingballs at yahoo.co.uk
Fri Jan 28 13:16:46 PST 2005


   I have a problem how to fill a smaller video_frame data to a larger window? 
   For example, 
	Firstly, I have known the below:
	unsigned char * pBuff; ( the pointer to data buffer, it is successfully initiated at before)  
    int      nBuffLen=230400; (320*240*3)
	int      nFrameWidth=320;
	int      nFrameHeight=240;
	int      nPixedBpp=24; (3 bytes)
	
	Secondly, I want to fill the video image into the whole window which is 640(width)*480(heigh), how to write the code? Should I build a SDL_Surface which is 320*240*24 or 640*480*24?
	 
	Thanks a lot.
	
	Or, my question is how to scale a image to window?

        
Best Regards
Zhou, Yubao
E-mail: zhouyb at blrcsv.china.bell-labs.com				



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