Path: chuka.playstation.co.uk!scea!greg_labrec@interactive.sony.com
From: dblee <dblee@netmagic.net>
Newsgroups: scea.yaroze.programming.2d_graphics
Subject: Invisible 256x256 TIM limit?
Date: Mon, 09 Feb 1998 02:57:27 -0800
Organization: SCEA News Server
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Hello,

I played around with the sprite functions over the weekend and ran
into a problem with a 320x240 TIM.  Apparently the width was clipped
to 256 pixels.  I don't remember reading about this limitation in the
documentation or in any message in this newsgroup.

When displaying the image back (I tried 8-bit CLUT and 15-bit
direct versions of it), I got about 3/4 of it.  Coordinates
(0,0)-(255,239) seemed to be fine, but (256,0)-(319,239) seemed to
be just a wrap-around of the first 64 pixels.

I eventually gave up and chopped the image in half (two 160x240x8
TIMs) and that filled out the screen.  :P  If anyone knows why this
happens, please let me know if I'm doing something wrong.

p.s.: the TimUtil.exe viewer converted it fine.  The preview showed
a full 320x240 image just fine.  However the timv.bat viewer only
ended up showing a 64x240 window of the image stretched out over the
entire screen.  Odd.

Puzzled,
- e!
  tenchi@netmagic.net
  http://www.netmagic.net/~tenchi/yaroze/