From:	toudi <pienkny AT friko6 DOT onet DOT pl>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Allegro: videomemory with bitmaps + sprites
Date:	Sat, 31 Jul 1999 19:09:24 +0200
Organization:	beautiful piramids
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To:	djgpp AT delorie DOT com
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Amin Kharchi napisał(a):

> Hello!
>
> I want to use the fast  videomemory with pageflipping for my game:
>
>  BITMAP *bmp;
>  bmp = create_video_bitmap(640,480);
>
> If I draw a bitmap with draw_sprite(bmp, sprite, 0,0) in to the created
> videospace, the sprite will be shown on the screen... But why??? I don't
> have used the function show_video_bitmap(bmp)!
>
> How could this possible and how I must use this video_bitmap-functions
> correctly?
>
> And I have a loop for the draw_sprite() and its flickering, with
> show_video_bitmap() and vsync() it's not better.
>
> --
> Amin Kharchi
> Wolfsburg, Germany

This is not correct answer to your question.
In 640x480 modes, page flipping is worse than double buffering sometimes, when
you use VESA I think.
Try it, VESA 2 linear and VESA 3 are very fast, fastest.

--
       mailto:pienkny AT friko6 DOT onet DOT pl
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