Message-ID:	<39F99483.D2B985B5@nic.fi>
From:	Antti =?iso-8859-1?Q?Koskip=E4=E4?= <antti DOT koskipaa AT nic DOT fi>
X-Mailer:	Mozilla 4.6 [en] (Win95; I)
X-Accept-Language:	en
MIME-Version:	1.0
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: hardware acceleration
References:	<007401c03c09$dc11cc20$0500a8c0 AT brk>
Lines:	29
Date:	Fri, 27 Oct 2000 17:43:15 +0300
NNTP-Posting-Host:	212.38.225.61
X-Trace:	uutiset.nic.fi 972657717 212.38.225.61 (Fri, 27 Oct 2000 17:41:57 EET DST)
NNTP-Posting-Date:	Fri, 27 Oct 2000 17:41:57 EET DST
Organization:	NIC Tietoverkot Oy - NIC Data Networks Ltd.
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

Johan Henriksson wrote:
> Me too. But there is one irritating thing: 15 & 24-bit res isn't supported.
> At least not under VESA3

I might add my two cents to this thread. I have owned a Voodoo 1,
2,3 and currently 5. Great cards. 24-bit color modes ARE supported
on them, whereas 32-bit modes are NOT.

Voodoo3 BIOS buglist: (what I have found)
- Division by zero when trying to adjust logical scanline width in
  lo-res hicolor modes. (yes I debugged the BIOS)
- Palette changing not synced in palette setting function.
- Hardware scrolling has 4-pixel horizontal granularity.
- Default scanline width in 320x200xY (Y > 8 bpp) is 1024 bytes.

Voodoo5 buglist:
- All the V3 bugs, PLUS:
- double scanned modes draw only every other scanline. These modes
  include: 320x200, 320x400, 400x300, 512x384. All VESA modes, that
  is.

Basic VGA works fine, though. 

-- 
- Antti
--
MS (n)  1. A debilitating and surprisingly widespread affliction
  that renders the sufferer barely able to perform the simplest
  task.  2. A disease, multiple sclerosis (see).

- Raw text -