#!/bin/bash
# Copyright 1999-2004 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo/src/livecd-tools/x-setup,v 1.6 2005/02/03 15:22:36 wolf31o2 Exp $

# Check for an xorg.conf
if [ ! -e /etc/X11/xorg.conf ]
then
	echo "ERROR: /etc/X11/xorg.conf cannot be found! Exiting"
	exit 1
fi

#first, get paths right if we're getting started b4 login
source /etc/profile

echo "0" > /proc/sys/kernel/printk
CMDLINE="`cat /proc/cmdline`"
for x in $CMDLINE
do
        if [ "$x" = "agpgart" ]
        then
			modprobe agpgart > /dev/null 2>&1
        fi
done

get_video_cards() {
	VIDEO_CARDS=`/sbin/lspci | grep VGA`
	NUM_CARDS=`echo ${VIDEO_CARDS} | wc -l`
	if [ ${NUM_CARDS} -eq 1 ]
	then
		NVIDIA=`echo ${VIDEO_CARDS} | grep NV`
		ATI=`echo ${VIDEO_CARDS} | grep "\(R2.*\|R3.*\)"`
		if [ -z "${NVIDIA}" ]
		then
			NVIDIA_CARD=`echo ${NVIDIA} | awk 'BEGIN {RS=" "} /NV[0-9]+/ {print $1}' | cut -dV -f2`
			if [ ${NVIDIA_CARD} -ge 4 ]
			then
				echo "NVIDIA card detected."
				GLTYPE=nvidia
			else
				echo "NVIDIA card is too old for OpenGL."
				GLTYPE=xorg-x11
			fi
		elif [ -z "${ATI}" ]
		then
			echo "ATI card detected."
			GLTYPE=ati
		else
			echo "ATI card is too old for OpenGL."
			GLTYPE=xorg-x11
		fi
		else
			echo "No OpenGL-capable card found."
			GLTYPE=xorg-x11
		fi
	fi
}

get_video_cards

if [ -x /usr/sbin/opengl-update-livecd ]
then
	/usr/sbin/opengl-update-livecd $GLTYPE
else
	opengl-update $GLTYPE
fi

if [ ! -e /etc/sysconfig/mouse ]
then
	echo "A mouse could not be detected; aborting."
	echo "Please make sure a mouse is attached to your system."
	exit 1
fi
source /etc/sysconfig/mouse

VERTREFRESH="\`ddcxinfo-knoppix -vsync\`"
if [ "$VERTREFRESH" = "0-0" ]
then
	echo "No DDC information detected; assuming reasonable defaults."
	VERTREFRESH=50-80
	HORIZSYNC=30-70
else
	HORIZSYNC="\`ddcxinfo-knoppix -hsync\`"
fi

sed -i -e "s:##MOUSEPROTO##:${XMOUSETYPE}:" \
	-e "s:##MOUSEDEV##:${DEVICE}:" \
	-e "s:##VERTREFRESH##:${VERTREFRESH}:" \
	-e "s:##HORIZSYNC##:${HORIZSYNC}:" \
	-e "s:DefaultColorDepth 16:DefaultColorDepth 24:" \
	/etc/X11/xorg.conf

#exec /usr/X11R6/bin/xinit