About video playback?

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From: htian (htian@withub.com.cn)
Date: Wed 09 May 2001 - 09:44:23 IDT


Can I use svgalib to play video(25frame/second)?
If can, what functions should I use?

I have tried these codes:
 time(&t1);
 i = 0;
 do{
   gl_setcontext(virtualscreen1);
   gl_copyscreen(physicalscreen);
   gl_setcontext(virtualscreen2);
   gl_copyscreen(physicalscreen);
   ++i;
 }while((vga_getkey() == 0)&&(i<100));
 time(&t2);
 vga_setmode(TEXT);
 printf("%d %d\n", t2-t1, 200/(t2-t1));

Switching between too virtual screens for 100 times, and 
the result is that it cost me 12 seconds.Why it's so slow?

HOT
htian@withub.com.cn

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