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MicroPythonOS/scripts/run_desktop.sh
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2025-10-24 17:08:48 +02:00

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#!/bin/bash -x
scriptdir=$(readlink -f "$0")
scriptdir=$(dirname "$scriptdir")
script="$1"
if [ -f "$script" ]; then
script=$(readlink -f "$script")
fi
echo "Usage:"
echo "$0 # with no arguments just starts it up normally"
echo "$0 scriptfile.py # doesn't initialize anything, just runs scriptfile.py directly"
echo "$0 appname # starts the app by appname, for example: com.example.helloworld"
#export SDL_WINDOW_FULLSCREEN=true
#export HEAPSIZE=8M # 9MB is not enough for slides, 10MB is okay for 5, 16 for 10, 64 for 100s
#export HEAPSIZE=9M # 9MB is not enough for slides, 10MB is okay for 5, 16 for 10, 64 for 100s
#export HEAPSIZE=10M # 9MB is not enough for slides, 10MB is okay for 5, 16 for 10, 64 for 100s
#export HEAPSIZE=11M # 9MB is not enough for slides, 10MB is okay for 5, 16 for 10, 64 for 100s
#export HEAPSIZE=12M # 9MB is not enough for slides, 10MB is okay for 5, 16 for 10, 64 for 100s
#export HEAPSIZE=13M # 9MB is not enough for slides, 10MB is okay for 5, 16 for 10, 64 for 100s
#export HEAPSIZE=14M # 9MB is not enough for slides, 10MB is okay for 5, 16 for 10, 64 for 100s
#export HEAPSIZE=15M # 9MB is not enough for slides, 10MB is okay for 5, 15 ok for all
# 15 works infinite with 8 images
# 12 seems to work fine with all images now, doing only gc.collect()
# 10-11 works infinite with 7 images but as soon as I add the next one (big PNG slide 2) it hangs memory alloc
# Makes semse because the error is:
# MemoryError: memory allocation failed, allocating 2518043 bytes
# So every new slide needs 2.5MB extra RAM!
# Fixed by adding lv.image.cache_drop(None) # This helps a lot!
# Now it works with 10M with infinite slides!
# Now not anymore... let's try increasing it.
#export HEAPSIZE=20M # this is fine for 1024x576
#export HEAPSIZE=15M # fine too
export HEAPSIZE=32M # for 1280x720 images in the image viewer
export HEAPSIZE=128M # for 1280x720 images in the image viewer
# print os and set binary
os_name=$(uname -s)
if [ "$os_name" = "Darwin" ]; then
echo "Running on macOS"
binary="$scriptdir"/../lvgl_micropython/build/lvgl_micropy_macOS
else
# other cases can be added here
echo "Running on $os_name"
binary="$scriptdir"/../lvgl_micropython/build/lvgl_micropy_unix
fi
binary=$(readlink -f "$binary")
chmod +x "$binary"
pushd internal_filesystem/
if [ -f "$script" ]; then
"$binary" -v -i "$script"
elif [ ! -z "$script" ]; then # it's an app name
scriptdir="apps/$script"
if [ ! -d "$scriptdir" ]; then
scriptdir="builtin/apps/$script"
fi
if [ ! -d "$scriptdir" ]; then
echo "ERROR: no app found by the name '$script'"
exit 1
fi
echo "Running app from $scriptdir"
"$binary" -X heapsize=$HEAPSIZE -v -i -c "$(cat boot_unix.py main.py) ; import mpos.apps; mpos.apps.start_app('$scriptdir')"
else
"$binary" -X heapsize=$HEAPSIZE -v -i -c "$(cat boot_unix.py main.py)"
fi
popd