Message-ID: <010401bda68f$7556d140$e44e08c3@arthur>
From: "Arthur" <arfa AT clara DOT net>
To: "DJGPP Mailing List" <djgpp AT delorie DOT com>
Subject: Re: scrolling with allegro
Date: Fri, 3 Jul 1998 15:11:28 +0100
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Precedence: bulk

>>>> One scheme is to create a very large bitmap object that is your level,
>>>> and then blit the appropriate piece onto the screen.
>>>
>>>Well that is not memory efficient, but the easiest approach.
>>
>>Not memory efficient. Hmm. Let me see: for a 1600x1600 map (for instance)
in
>>256 colours - that's 625Mb of ram. (!)
>*** 1600x1600=2560000. Wouldn't that be 2.44 MB? Perhaps you're using big
>chars :))


Ooops. My mistake. Still a large(ish) amount of memory, though.

Note that 1600x1600 pixels is still a very small map. It's only 50x50 of my
32x32 pixel tiles. Many maps contain over 200x200 map tiles. This would be a
39Mb picture file (If I've got my maths right this time).

James Arthur
jaa AT arfa DOT clara DOT net