zynthian.sh

#!/bin/bash
#******************************************************************************
# ZYNTHIAN PROJECT: Zynthian Start Script
# 
# Start all services needed by zynthian and the zynthian UI
# 
# Copyright (C) 2015-2016 Fernando Moyano <jofemodo@zynthian.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 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.
#
# For a full copy of the GNU General Public License see the LICENSE.txt file.
# 
#******************************************************************************


#export ZYNTHIAN_LOG_LEVEL=10			# 10=DEBUG, 20=INFO, 30=WARNING, 40=ERROR, 50=CRITICAL
#export ZYNTHIAN_RAISE_EXCEPTIONS=0

#------------------------------------------------------------------------------
# Some Functions
#------------------------------------------------------------------------------

function load_config_env() {
	if [ -d "$ZYNTHIAN_CONFIG_DIR" ]; then
		source "$ZYNTHIAN_CONFIG_DIR/zynthian_envars.sh"
	else
		source "$ZYNTHIAN_SYS_DIR/scripts/zynthian_envars.sh"
	fi

	if [ ! -z "$ZYNTHIAN_SCRIPT_MIDI_PROFILE" ]; then
		source "$ZYNTHIAN_SCRIPT_MIDI_PROFILE"
	else
		source "$ZYNTHIAN_MY_DATA_DIR/midi-profiles/default.sh"
	fi

	if [ -f "$ZYNTHIAN_CONFIG_DIR/zynthian_custom_config.sh" ]; then
		source "$ZYNTHIAN_CONFIG_DIR/zynthian_custom_config.sh"
	fi
}

function backlight_on() {
	# Turn On Display Backlight
	#echo 0 > /sys/class/backlight/soc:backlight/bl_power
	#echo 0 > /sys/class/backlight/fb_ili9486/bl_power
	echo 0 > /sys/class/backlight/*/bl_power
}

function backlight_off() {
	# Turn Off Display Backlight
	#echo 1 > /sys/class/backlight/soc:backlight/bl_power
	#echo 1 > /sys/class/backlight/fb_ili9486/bl_power
	echo 1 > /sys/class/backlight/*/bl_power
}

function screensaver_off() {
	# Don't activate screensaver
	xset s off
	# Disable DPMS (Energy Star) features.
	xset -dpms
	# Don't blank the video device
	xset s noblank
}

function splash_zynthian() {
	if [ -c $FRAMEBUFFER ]; then
		cat $ZYNTHIAN_CONFIG_DIR/img/fb_zynthian_boot.raw > $FRAMEBUFFER
	fi  
}

function splash_zynthian_error() {
	if [ -c $FRAMEBUFFER ]; then
		#Get the IP
		#zynthian_ip=`ip route get 1 | awk '{print $NF;exit}'`
		zynthian_ip=`ip route get 1 | sed 's/^.*src \([^ ]*\).*$/\1/;q'`

		#Generate an error image with the IP ...
		img_fpath="$ZYNTHIAN_CONFIG_DIR/img/fb_zynthian_error.png"
		img_w=`identify -format '%w' $img_fpath`
		img_h=`identify -format '%h' $img_fpath`
		pos_x=$(expr $img_w \* 100 / 266)
		pos_y=$(expr $img_h \* 100 / 110)
		font_size=$(expr $img_w / 24)
		convert -pointsize $font_size -fill white -draw "text $pos_x,$pos_y \"IP: $zynthian_ip\"" $img_fpath $ZYNTHIAN_CONFIG_DIR/img/fb_zynthian_error_ip.png
		
		#Display error image
		xloadimage -fullscreen -onroot $ZYNTHIAN_CONFIG_DIR/img/fb_zynthian_error_ip.png
		#cat $ZYNTHIAN_CONFIG_DIR/img/fb_zynthian_error.raw > $FRAMEBUFFER
	fi  
}

#------------------------------------------------------------------------------
# Main Program
#------------------------------------------------------------------------------

cd $ZYNTHIAN_UI_DIR

backlight_on
screensaver_off

while true; do
	#Load Config Environment
	load_config_env

	# Start Zynthian GUI & Synth Engine
	export QT_QUICK_CONTROLS_MOBILE=1
	export QT_QUICK_CONTROLS_STYLE=Zynthian-Plasma
	export QT_FILE_SELECTORS=Plasma
	export QT_QUICK_CONTROLS_STYLE_PATH=./qtquick-controls-style
	#export QT_SCALE_FACTOR=1.2
	#Qt5.11 didn't support this var yet
	#export QT_QPA_SYSTEM_ICON_THEME=breeze
	#workaround for the old kirigami version
	export XDG_CURRENT_DESKTOP=kde
	export QT_QPA_PLATFORMTHEME=generic
	export XDG_DATA_DIRS=/usr/share

	#HACK
	rm ../config/keybinding.yaml
	#cp zynthian_envars.sh ../config

	./zynthian_qt_gui.py
	status=$?

	# Proccess output status
	case $status in
		0)
			splash_zynthian
			poweroff
			break
		;;
		100)
			splash_zynthian
			reboot
			break
		;;
		101)
			splash_zynthian
			backlight_off
			break
		;;
		102)
			splash_zynthian
			sleep 1
		;;
		*)
			splash_zynthian_error
			sleep 3
		;;
	esac  
done

#------------------------------------------------------------------------------