add compiz and apropriate ebuilds with package.unmask file

x11-wm/compiz/files/0.3.6/compiz-start

@@ -0,0 +1,41 @@
+# compiz-start script
+#
+# hacky autodetection of neccessary options for XGL/AIGLX/NVIDIA
+#
+# Hanno Boeck, http://www.hboeck.de/
+#
+# Licensed under the same conditions as compiz itself (MIT or GPL)
+
+if [ ! -x /usr/bin/glxinfo ]; then
+	echo "glxinfo not found, please install mesa-progs."
+	exit -1
+fi
+
+GLX_WITH_DIRECT=`glxinfo|grep -c GLX_EXT_texture_from_pixmap`
+GLX_WITH_INDIRECT=`LIBGL_ALWAYS_INDIRECT=1 glxinfo|grep -c GLX_EXT_texture_from_pixmap`
+GLX_RENDER=`glxinfo|grep -c "OpenGL renderer string: Mesa GLX Indirect"`
+
+
+COMPIZ_OPTIONS="--replace"
+
+if [ $GLX_WITH_DIRECT -eq 3 ]; then
+	if [ $GLX_RENDER -eq 0 ]; then
+		echo NVIDA detected
+		export __GL_YIELD="NOTHING" 
+	else
+		echo XGL detected
+	fi
+elif [ $GLX_WITH_INDIRECT -eq 3 ]; then
+	echo AIGLX detected
+	export LIBGL_ALWAYS_INDIRECT=1
+fi
+
+if [ ! -z $KDE_FULL_SESSION ] && [ -x /usr/bin/kde-window-decorator ]; then
+	echo Using KDE decorator
+	kde-window-decorator --replace &
+else
+	echo Using GTK decorator
+	gtk-window-decorator --replace &
+fi
+
+compiz $COMPIZ_OPTIONS gconf move resize minimize place decoration wobbly fade cube rotate scale switcher zoom dbus