.\"	$OpenBSD: tvtwo.4,v 1.8 2004/02/29 21:44:07 miod Exp $
.\" Copyright (c) 2003 Miodrag Vallat.  All rights reserved.
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.Dd March 5, 2003
.Dt TVTWO 4 sparc
.Os
.Sh NAME
.Nm tvtwo
.Nd accelerated 24-bit color frame buffer
.Sh SYNOPSIS
.Cd "tvtwo* at sbus? slot ? offset ?"
.Cd "wsdisplay* at tvtwo?"
.Sh DESCRIPTION
The
.Nm
is a memory based color frame buffer, with graphics acceleration
and overlay capabilities, and hardware MPEG decoding.
.Pp
The
.Nm
driver interfaces the frame buffer to the
.Xr wscons 4
console framework.
It does not provide direct device driver entry points
but makes its functions available via the internal
.Xr wsdisplay 4
interface.
.Sh SEE ALSO
.Xr agten 4 ,
.Xr bwtwo 4 ,
.Xr cgeight 4 ,
.Xr cgfour 4 ,
.Xr cgfourteen 4 ,
.Xr cgsix 4 ,
.Xr cgthree 4 ,
.Xr cgtwelve 4 ,
.Xr cgtwo 4 ,
.Xr intro 4 ,
.Xr mgx 4 ,
.Xr pninek 4 ,
.Xr pnozz 4 ,
.Xr rfx 4 ,
.Xr sbus 4 ,
.Xr tcx 4 ,
.Xr vigra 4 ,
.Xr wscons 4 ,
.Xr wsdisplay 4 ,
.Xr zx 4 ,
.Xr boot_config 8 ,
.Xr config 8
.Sh CAVEATS
This driver does not support any acceleration features at the moment.
Thus, vertical scrolling in console mode is abysmally slow in 24 bit mode.