Re: [AL] Gaining some more FPS?

[Karthik <ma...@vs...>]

Page flipping gives much smoother results in high resolutions as compared to
double buffer - at least in my game where a 640x480 background is drawn
everytime. Check out exflip.c for more info on using page flipping.

----- Original Message -----
From: "Emil Löfblom" <d9...@da...>
To: <al...@ca...>
Sent: Friday, March 30, 2001 8:36 PM
Subject: [AL] Gaining some more FPS?


Is there any thing I should think about to gain FPS when programming?
Currenly I start to load all my bitmaps to the system memory, then use
draw_sprite
or blit if I don't need transparent pixels to draw all my objects to a
buffer bitmap,
and finally blit the complete buffer to the screen. I guess this is the
easiest method
to get a flicker free update, but far from the best method. Could I use the
video
to store my bitmaps in, should I have my buffer bitmap in the video aswell?

Because of that the games background always moves 1 pixel or more it needs
to
be updated every time, therefore I guess using Dirty Rectangles wouldn't
help me
very much.