platforms/linux/qlcplus-start.sh
#!/usr/bin/env bash
#
#  Q Light Controller Plus
#  qlcplus-start.sh
#
#  Copyright (c) 2024 Massimo Callegari
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0.txt
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

# detect DRI card
if [ ! -f $HOME/.qlcplus/eglfs.json ]; then
    mkdir -p $HOME/.qlcplus
    for i in {1..5}
    do
        GPUDEV=`find /dev/dri/by-path -name *gpu-card*`
        if [ ! -z "$GPUDEV" ]; then
            GPUDEV=`readlink -f $GPUDEV`
            echo '{ "device": "'$GPUDEV'" }' > $HOME/.qlcplus/eglfs.json
            break
        else
            sleep 2
        fi
    done
fi

# detect HDMI plug state
QTPLATFORM="eglfs"
kmsprint -m | grep connected > /dev/null
if [ $? -eq 1 ]; then
    QTPLATFORM="offscreen"
fi

# create QLC+ command line
QLCPLUS_OPTS="-platform $QTPLATFORM --nowm --web --web-auth --operate --overscan"

if [ -f $HOME/.qlcplus/autostart.qxw ]; then
    QLCPLUS_OPTS="$QLCPLUS_OPTS --open $HOME/.qlcplus/autostart.qxw"
fi

# if NTP hasn't done its job already, set the date to modern age...
CURRDATE=`date +%Y`
if [ "$CURRDATE" -lt "2025" ]; then
    date +%Y%m%d -s "20250701"
fi

export QT_QPA_EGLFS_PHYSICAL_WIDTH=400
export QT_QPA_EGLFS_PHYSICAL_HEIGHT=300
export QT_QPA_EGLFS_ALWAYS_SET_MODE=1
export QT_QPA_EGLFS_KMS_CONFIG=$HOME/.qlcplus/eglfs.json

/usr/bin/qlcplus $QLCPLUS_OPTS
