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+#!/bin/sh
+# Compiz Manager wrapper script
+#
+# Copyright (c) 2007 Kristian Lyngstøl <kristian@bohemians.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#
+#
+# Contributions by: Treviño (3v1n0) <trevi55@gmail.com>, Ubuntu Packages
+#
+# Much of this code is based on Beryl code, also licensed under the GPL.
+# This script will detect what options we need to pass to compiz to get it
+# started, and start a default plugin and possibly window decorator.
+#
+
+
+COMPIZ_BIN_PATH="/usr/bin/" # For window decorators and compiz
+PLUGIN_PATH="/usr/lib/compiz/"
+GLXINFO="/usr/bin/glxinfo"
+KWIN="/usr/bin/kwin"
+METACITY="/usr/bin/metacity"
+COMPIZ_NAME="compiz" # Final name for compiz (compiz.real)
+
+# For Xgl LD_PRELOAD
+LIBGL_NVIDIA="/usr/lib/nvidia/libGL.so.1.2.xlibmesa"
+LIBGL_FGLRX="/usr/lib/fglrx/libGL.so.1.2.xlibmesa"
+
+# Minimum amount of memory (in kilo bytes) that nVidia cards need
+# to be allowed to start
+# Set to 262144 to require 256MB
+NVIDIA_MEMORY="65536" # 64MB
+NVIDIA_SETTINGS="nvidia-settings" # Assume it's in the path by default
+
+# For detecting what driver is in use, the + is for one or more /'s
+XORG_DRIVER_PATH="/usr/lib/xorg/modules/drivers/+"
+
+FALLBACKWM="${METACITY}"
+FALLBACKWM_OPTIONS="--replace $@"
+
+# Driver whitelist
+WHITELIST="nvidia intel ati radeon i810"
+
+# blacklist based on the pci ids
+# See http://wiki.compiz-fusion.org/Hardware/Blacklist for details
+T=" 1002:5954 1002:5854 1002:5955" # ati rs480
+T="$T 1002:4153" # ATI Rv350
+T="$T 8086:2982 8086:2992 8086:29a2 8086:2a02 8086:2a12" # intel 965
+BLACKLIST_PCIIDS="$T"
+unset T
+
+COMPIZ_OPTIONS="--ignore-desktop-hints --replace"
+COMPIZ_PLUGINS=""
+ENV=""
+
+# Use emerald by default if it exist
+USE_EMERALD="yes"
+
+# No indirect by default
+INDIRECT="no"
+
+# Default X.org log if xset q doesn't reveal it
+XORG_DEFAULT_LOG="/var/log/Xorg.0.log"
+
+# Set to yes to enable verbose
+VERBOSE="yes"
+
+# Echos the arguments if verbose
+verbose()
+{
+ if [ "x$VERBOSE" = "xyes" ]; then
+ printf "$*"
+ fi
+}
+
+# abort script and run fallback windowmanager
+abort_with_fallback_wm()
+{
+ if [ "x$SKIP_CHECKS" = "xyes" ]; then
+ verbose "SKIP_CHECKS is yes, so continuing despite problems.\n"
+ return 0;
+ fi
+
+ verbose "aborting and using fallback: $FALLBACKWM \n"
+
+ if [ -x $FALLBACKWM ]; then
+ exec $FALLBACKWM $FALLBACKWM_OPTIONS
+ else
+ printf "no $FALLBACKWM found, exiting\n"
+ exit 1
+ fi
+}
+
+# Check for non power of two texture support
+check_npot_texture()
+{
+ verbose "Checking for non power of two support: "
+ if glxinfo 2> /dev/null | egrep -q '(GL_ARB_texture_non_power_of_two|GL_NV_texture_rectangle|GL_EXT_texture_rectangle|GL_ARB_texture_rectangle)' ; then
+ verbose "present. \n";
+ return 0;
+ else
+ verbose "Not present. \n"
+ return 1;
+ fi
+
+}
+
+# Check for presence of FBConfig
+check_fbconfig()
+{
+ verbose "Checking for FBConfig: "
+ if [ "$INDIRECT" = "yes" ]; then
+ $GLXINFO -i | grep -q GLX.*fbconfig
+ FB=$?
+ else
+ $GLXINFO | grep -q GLX.*fbconfig
+ FB=$?
+ fi
+
+ if [ $FB = "0" ]; then
+ unset FB
+ verbose "present. \n"
+ return 0;
+ else
+ unset FB
+ verbose "not present. \n"
+ return 1;
+ fi
+}
+
+
+# Check for TFP
+check_tfp()
+{
+ verbose "Checking for texture_from_pixmap: "
+ if [ $($GLXINFO 2>/dev/null | grep GLX_EXT_texture_from_pixmap -c) -gt 2 ] ; then
+ verbose "present. \n"
+ return 0;
+ else
+ verbose "not present. \n"
+ if [ "$INDIRECT" = "yes" ]; then
+ unset LIBGL_ALWAYS_INDIRECT
+ INDIRECT="no"
+ return 1;
+ else
+ verbose "Trying again with indirect rendering:\n";
+ INDIRECT="yes"
+ export LIBGL_ALWAYS_INDIRECT=1
+ check_tfp;
+ return $?
+ fi
+ fi
+}
+
+# Check wether the composite extension is present
+check_composite()
+{
+ verbose "Checking for Composite extension: "
+ if xdpyinfo -queryExtensions | grep -q Composite ; then
+ verbose "present. \n";
+ return 0;
+ else
+ verbose "not present. \n";
+ return 1;
+ fi
+}
+
+# Detects if Xgl is running
+check_xgl()
+{
+ verbose "Checking for Xgl: "
+ if xvinfo | grep -q Xgl ; then
+ verbose "present. \n"
+ return 0;
+ else
+ verbose "not present. \n"
+ return 1;
+ fi
+}
+
+# Check if the nVidia card has enough video ram to make sense
+check_nvidia_memory()
+{
+ MEM=$(${NVIDIA_SETTINGS} -q VideoRam | egrep Attribute\ \'VideoRam\'\ .*: | cut -d: -f3 | sed 's/[^0-9]//g')
+ if [ $MEM -lt $NVIDIA_MEMORY ]; then
+ verbose "Less than ${NVIDIA_MEMORY}kb of memory and nVidia";
+ return 1;
+ fi
+ return 0;
+}
+
+# Check for existence if NV-GLX
+check_nvidia()
+{
+ if [ ! -z $NVIDIA_INTERNAL_TEST ]; then
+ return $NVIDIA_INTERNAL_TEST;
+ fi
+ verbose "Checking for nVidia: "
+ if xdpyinfo | grep -q NV-GLX ; then
+ verbose "present. \n"
+ NVIDIA_INTERNAL_TEST=0
+ return 0;
+ else
+ verbose "not present. \n"
+ NVIDIA_INTERNAL_TEST=1
+ return 1;
+ fi
+}
+
+# Check if the max texture size is large enough compared to the resolution
+check_texture_size()
+{
+ TEXTURE_LIMIT=$(glxinfo -l | grep -m1 GL_MAX_TEXTURE_SIZE | sed 's/.*=[^0-9]//g')
+ RESOLUTION=$(xdpyinfo | grep -i dimensions: | sed 's/[^0-9]*pixels.*(.*).*//' | sed 's/[^0-9x]*//')
+ VRES=$(echo $RESOLUTION | sed 's/.*x//')
+ HRES=$(echo $RESOLUTION | sed 's/x.*//')
+ verbose "Comparing resolution ($RESOLUTION) to maximum 3D texture size ($TEXTURE_LIMIT): ";
+ if [ $VRES -gt $TEXTURE_LIMIT ] || [ $HRES -gt $TEXTURE_LIMIT ]; then
+ verbose "Failed.\n"
+ return 1;
+ fi
+ verbose "Passed.\n"
+ return 0
+}
+
+# check driver whitelist
+running_under_whitelisted_driver()
+{
+ LOG=$(xset q|grep "Log file"|awk '{print $3}')
+ if [ "$LOG" = "" ]; then
+ verbose "xset q doesn't reveal the location of the log file. Using fallback $XORG_DEFAULT_LOG \n"
+ LOG=$XORG_DEFAULT_LOG;
+ fi
+ if [ -z "$LOG" ];then
+ verbose "AIEEEEH, no Log file found \n"
+ verbose "$(xset q) \n"
+ return 0
+ fi
+ for DRV in ${WHITELIST}; do
+ if egrep -q "Loading ${XORG_DRIVER_PATH}${DRV}_drv\.so" $LOG &&
+ ! egrep -q "Unloading ${XORG_DRIVER_PATH}${DRV}_drv\.so" $LOG;
+ then
+ return 0
+ fi
+ done
+ verbose "No whitelisted driver found\n"
+ return 1
+}
+
+# check pciid blacklist
+have_blacklisted_pciid()
+{
+ OUTPUT=$(lspci -n)
+ for ID in ${BLACKLIST_PCIIDS}; do
+ if echo "$OUTPUT" | egrep -q "$ID"; then
+ verbose "Blacklisted PCIID '$ID' found \n"
+ return 0
+ fi
+ done
+ OUTPUT=$(lspci -vn | grep -i VGA)
+ verbose "Detected PCI ID for VGA: $OUTPUT\n"
+ return 1
+}
+
+build_env()
+{
+ if check_nvidia; then
+ ENV="__GL_YIELD=NOTHING "
+ fi
+ if [ "$INDIRECT" = "yes" ]; then
+ ENV="$ENV LIBGL_ALWAYS_INDIRECT=1 "
+ fi
+ if check_xgl; then
+ if [ -f ${LIBGL_NVIDIA} ]; then
+ ENV="$ENV LD_PRELOAD=${LIBGL_NVIDIA}"
+ verbose "Enabling Xgl with nVidia drivers...\n"
+ fi
+ if [ -f ${LIBGL_FGLRX} ]; then
+ ENV="$ENV LD_PRELOAD=${LIBGL_FGLRX}"
+ verbose "Enabling Xgl with fglrx ATi drivers...\n"
+ fi
+ fi
+
+ ENV="$ENV FROM_WRAPPER=yes"
+
+ if [ -n "$ENV" ]; then
+ export $ENV
+ fi
+}
+
+build_args()
+{
+ if [ $INDIRECT = "yes" ]; then
+ COMPIZ_OPTIONS="$COMPIZ_OPTIONS --indirect-rendering "
+ fi
+ if check_nvidia; then
+ COMPIZ_OPTIONS="$COMPIZ_OPTIONS --loose-binding"
+ fi
+}
+
+####################
+# Execution begins here.
+
+# Read configuration from XDG paths
+if [ -z "$XDG_CONFIG_DIRS" ]; then
+ test -f /etc/xdg/compiz/compiz-manager && . /etc/xdg/compiz/compiz-manager
+else
+ test -f $XDG_CONFIG_DIRS/compiz/compiz-manager && . $XDG_CONFIG_DIRS/compiz/compiz-manager
+fi
+
+if [ -z "$XDG_CONFIG_HOME" ]; then
+ test -f $HOME/.config/compiz/compiz-manager && . $HOME/.config/compiz/compiz-manager
+else
+ test -f $XDG_CONFIG_HOME/compiz/compiz-manager && . $XDG_CONFIG_HOME/compiz/compiz-manager
+fi
+
+# Don't use compiz when running the failsafe session
+if [ "x$GNOME_DESKTOP_SESSION_ID" = "xFailsafe" ]; then
+ abort_with_fallback_wm
+fi
+
+if [ "x$LIBGL_ALWAYS_INDIRECT" = "x1" ]; then
+ INDIRECT="yes";
+fi
+
+# if we run under Xgl, we can skip some tests here
+if ! check_xgl; then
+ # if vesa or vga are in use, do not even try glxinfo (LP#119341)
+ if ! running_under_whitelisted_driver || have_blacklisted_pciid; then
+ abort_with_fallback_wm
+ fi
+ # check if we have the required bits to run compiz and if not,
+ # fallback
+ if ! check_tfp || ! check_npot_texture || ! check_composite || ! check_texture_size; then
+ abort_with_fallback_wm
+ fi
+
+ if check_nvidia && ! check_nvidia_memory; then
+ abort_with_fallback_wm
+ fi
+
+ if ! check_fbconfig; then
+ abort_with_fallback_wm
+ fi
+fi
+
+# load the ccp plugin if present and fallback to plain gconf if not
+if [ -f ${PLUGIN_PATH}libccp.so ]; then
+ COMPIZ_PLUGINS="$COMPIZ_PLUGINS ccp"
+elif [ -f ${PLUGIN_PATH}libgconf.so ]; then
+ COMPIZ_PLUGINS="$COMPIZ_PLUGINS glib gconf"
+fi
+
+# get environment
+build_env
+build_args
+
+# start the gtk-window-decorator if present
+if [ -x ${COMPIZ_BIN_PATH}emerald ] && [ "$USE_EMERALD" = "yes" ]; then
+ verbose "Starting emerald\n"
+ ${COMPIZ_BIN_PATH}emerald --replace &
+elif [ -x ${COMPIZ_BIN_PATH}gtk-window-decorator ] && [ -n "$GNOME_DESKTOP_SESSION_ID" ]; then
+ verbose "Starting gtk-window-decorator\n"
+ ${COMPIZ_BIN_PATH}gtk-window-decorator --replace &
+elif [ -x ${COMPIZ_BIN_PATH}kde-window-decorator ] && [ -n "$KDE_FULL_SESSION" ]; then
+ verbose "Starting kde-window-decorator\n"
+ ${COMPIZ_BIN_PATH}kde-window-decorator --replace &
+ FALLBACKWM="${KWIN}"
+fi
+
+${COMPIZ_BIN_PATH}${COMPIZ_NAME} $COMPIZ_OPTIONS "$@" $COMPIZ_PLUGINS || exec $FALLBACKWM $FALLBACKWM_OPTIONS
+
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