To: djgpp AT delorie DOT com
Subject: Re: Which is faster? Allegro or Sandmann's LFB
Message-ID: <19961226.230751.4975.3.chambersb@juno.com>
References: <59s2q3$84l AT nuscc DOT nus DOT sg>
From: chambersb AT juno DOT com (Benjamin D Chambers)
Date: Thu, 26 Dec 1996 02:03:30 EST


On 25 Dec 1996 20:28:51 GMT tangchis AT iscs DOT nus DOT sg ([Uzi]) writes:
>Hi!
>
>I was wondering .. which is faster for graphics programming which 
>requires
>a high frame rate and uses double buffering in RAM for page-flipping? 
>I
>havn't tried Allegro yet, but I managed to write some routines based 
>on
>Charles Sandmann's (thanks!) VBE.ZIP, using a linear frame buffer 
>under
>VBE 2.0. 
>
>I was hoping to avoid having to use univbe to invoke VBE 2.0, and am
>thinking of switching to Allegro's graphics library.
>
>I heard Allegro is a great game-oriented library, and wonder if is it
>generally fast enough for such applications?
>
>I use 640x480x8bpp mode and managed to get about 15-17 fps on a 
>Pentium
>133 for a totally unoptimised example that moved 640x480 different 
>pixels
>every frame from double buffer to video mem and also 2 lines that 
>moved up
>and down and across the screen. The double buffer is also cleared 
>after
>every frame.
>
>Thanks for any responses! :)
>
I've seen a program get over 200fps with Allegro on a Pentium-133. (Clear
the buffer, draw on buffer, copy to video).  Was just a test, but it
worked :)

...Chambers