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Software News   Software News : Allegro for OS4 update
   posted by Hitman on 10-Jun-2007 23:12:10 (5934 reads)
Hello everyone.

Well after much hard work I am happy to say that Allegro is now running on OS4. It still needs some work in the optimization department, and to increase the number of games that can be ported it will need some extra libraries to be ported as well. But these can come later in stage 2.

read more


You may be interested in looking at some screenshots!

Here is a remake of one of my old favorites from the c64, Sword of Fargoal:

Sword of Fargoal

And for those Ghosts & Goblins/Ghouls & Ghosts fans:

Ghouls 'n' Ghosts 1
Ghouls 'n' Ghosts 2

And yes, it's just as damn hard as the originals!!!

Plus of course the obligatory Tetris clone:

Vertris

I am going to spend this week cleaning up the currently written code and hopefully by next weekend I'll release the above games (and some others) for people to play and to report any problems they find.

Like the SDL port, now that the main work is done, Allegro will continue to be slowly improved over the coming months to make it more robust and usable. The people on the official Allegro mailing list are very helpful and friendly, so I'll get the code into their Subversion repository soon.

Now I have one favor to ask! Good Allegro games are a bit difficult to find! Most of the really good ones don't come with source and many others are either rubbish or are difficult to port. So if you find any really good games that come *with* source, post a URI to this thread, and either I or spotUp or ToAks will take a look at them!
    

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PosterThread
Zardoz 
Re: Allegro for OS4 update
Posted on 11-Jun-2007 14:33:27
#21 ]
Team Member
Joined: 13-Mar-2003
Posts: 4261
From: Unknown

Peltier cooling?


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Etho 
Re: Allegro for OS4 update
Posted on 11-Jun-2007 14:44:36
#22 ]
Regular Member
Joined: 7-Feb-2004
Posts: 176
From: Liverpool, UK

@Hitman

God bless ya guvna!!

Last edited by Etho on 11-Jun-2007 at 02:53 PM.


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Wol 
Re: Allegro for OS4 update
Posted on 11-Jun-2007 21:06:03
#23 ]
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Joined: 8-Mar-2003
Posts: 967
From: UK.......Sol 3.

@ AMiGR


Peltier Cooling.. hehe.. me thinks the 'Electric Dark Bulb'
should be possible



Wol.


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Zardoz 
Re: Allegro for OS4 update
Posted on 11-Jun-2007 22:43:44
#24 ]
Team Member
Joined: 13-Mar-2003
Posts: 4261
From: Unknown

The what?


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Hitman 
Re: Allegro for OS4 update
Posted on 12-Jun-2007 21:49:08
#25 ]
Member
Joined: 16-Jul-2005
Posts: 91
From: Isle of Dogs, London, England

Quote:

Alex The Allegator 4 (from Free Lunch Design) is a fun game with source available. I just started looking at it this weekend for a GP2X port. It needs DUMB (a mod player library) although it looks easy to remove that requirement initially simply by removing music support.


I had a look at this on the weekend but got stuck with its requirement for DUMB, but I will have another look at it again soon. I have sound implemented on Allegro now (although just for short samples/fs) so it is time to start looking at mod/mp3/ogg playback libraries as many games seem to rely on these.

Quote:

Allegro is a good opportunity for some new ports, but it's also a really good opportunity for any wannabe games makers/programmers out there. It has a really easy to use API (I think easier than SDL) and is a great opportunity for anyone who'd like to learn C and make some simple games. It's kinda the AMOS of C programming.


Yes, it is very easy to use! I think that many people use it not because they want to write cross platform games, but because it is just an easy API to code for. It would be great if someone used it to write some Amiga games but I'm not sure if I could see that happening. :-/

Quote:

Does this port rely on any OS4 specific API's? I'd like to have a look at what's involved in porting to OS 3.x and AROS (I don't have an OS4 capable system although I remain hopeful that it will happen sooner or later).


There are a couple that it relies on but they could easily be worked around. The main task in porting it would be that it currently uses the OS4 style API calling convention (ie. IExec->AllocMem() rather than AllocMem()) as I usually code only for OS4 these days so I did it like that out of habit. But it's nothing that a search and replace won't fix.

It would run well on AROS but due to the fact that many games use up to 90% CPU time on my 800 Mhz G3 A1 Micro, I am not sure how many games would run successfully on OS3. There would be a few (such as the classic Sword of Fargoal remake that I keep playing!) but not as many as OS4/Morph OS/AROS.

Anyway, once I get the OS4 port finished I'll get the source into the official Allegro Subversion repository and anyone can have a hack at it for their favourite platform.

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Lozrus 
Re: Allegro for OS4 update
Posted on 14-Jun-2007 17:25:56
#26 ]
Member
Joined: 16-Nov-2005
Posts: 13
From: Unknown

Quote:
I had a look at this on the weekend but got stuck with its requirement for DUMB, but I will have another look at it again soon. I have sound implemented on Allegro now (although just for short samples/fs) so it is time to start looking at mod/mp3/ogg playback libraries as many games seem to rely on these.

I pretty much removed the requirement for DUMB last weekend while trying to port to the GP2x, but something was wrong with my build environment (it's my first attempt to build anything for this device) and my wife decided I was giving too much attention to the computer and not enough to her so I had to abandon it until next weekend. Once I prove it I'll let you know. The source compiles fine, but I'm getting some linker errors, it might simply be that the Allegro API has changed since Alex4 was made.

DUMB seems to sit entirely on top of the Allegro sound API so it should be easy to port, again I'm going to attempt to port it to the GP2x (if I get the time), but no promises, time is short at the moment.

Quote:
It would run well on AROS but due to the fact that many games use up to 90% CPU time on my 800 Mhz G3 A1 Micro, I am not sure how many games would run successfully on OS3. There would be a few (such as the classic Sword of Fargoal remake that I keep playing!) but not as many as OS4/Morph OS/AROS.

When you release the source I'll definitely take a look, AROS is a project I've always wanted to contribute something to.

Thanks for all your work on this

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samo79 
Re: Allegro for OS4 update
Posted on 14-Jun-2007 21:20:01
#27 ]
Elite Member
Joined: 13-Feb-2003
Posts: 3406
From: Italy, Perugia

Very nice


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Troels 
Re: Allegro for OS4 update
Posted on 16-Jun-2007 12:43:53
#28 ]
Super Member
Joined: 8-Mar-2003
Posts: 1985
From: Unknown

Just came back from Corfu yesterday, so this is great news.

People please feel free to make some more donations for the Allegro bounty, no money has been send yet so you can still make it


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raistlin77it 
Re: Allegro for OS4 update
Posted on 23-Oct-2011 17:27:54
#29 ]
Member
Joined: 29-Nov-2005
Posts: 19
From: Unknown

@hitman :maybe we can have the sources too? (minor the music modules if u want)

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