Path: chuka.playstation.co.uk!news
From: Paso <giulio@mbox.ulisse.it>
Newsgroups: scee.yaroze.programming.2d_graphics
Subject: Re: Tim palette mess
Date: Wed, 16 Apr 1997 18:09:46 +0200
Organization: PlayStation Net Yaroze (SCEE)
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Message-ID: <3354F9CA.5607@mbox.ulisse.it>
References: <335485F0.6049@mbox.ulisse.it> <3354CB37.2710@interactive.sony.com>
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SCEE Developer Support wrote:
> 
> Paso wrote:
> >
> > I have done a simple demo to use some 2d stuff on a TIM made by me.
> > With a small TIM (100*80 res 8 bit clut) there's no problems.
> > If I change TIM res or if I use 16 bit color depth it's a mess.(my
> > program is written to be compatible with 4, 8, 16 bit TIMs)
> > My TIM gets some of the wall displayed at the console start-up and show
> > it along with some fonts.
> > The program runs correctly but the display has only the shape of my TIM.
> > I'm trying to fix this bug but I have not a lot of time (I have to study
> > a lot) so if anyone has got the same problem and has a solution just
> > tell me, please.
> >
> > Thanks
> 
> Seems like you have more thn one problem: firstly with
> varying bit depths (GsSPRITEs need flags set for this)
> and with basic main loop display code
> (some of the console).
> 
> The demos 2d1, 2d2 and the 2d routines found in tunelfin
> and ninth (or modules\ninth) are probably the most robust
> and easiest to use; you can just attach a sprite directly to a TIM
> and display the sprite, knowing that the right flags
> etc have been set, and it works for 4, 8 and 16 bit TIM files.
> 
> Let me know if they don't do the business
> 
> Lewis

Hi Lewis and thanks.
Before reading your message I have found a partial solution.
I had to increase the max GPU packets to hit the spot.
Now with my basic code I can display TIMs without problem to a max
tested TIM res of 210 * 160 * 16. 
With a bigger res the problem come back and it's worse! The start up
image is corret but when I try to do something like rotate it an half
disappears to never come back.
I have some good games ideas and I don't want to waste a lot of time
trying to master alone PSX programming so I'm going to download these
demos to see what is a fast (and safe) way to use 2d objects handlers.
I'll tell you if they are ok for my business.