Minecrell
e3d07c832c
We need to generate the splash screens separately for each device,
because they are specific to the device's display resolution.
At the moment we do this dynamically during the installation process.
This has the advantage that there is no need to re-build all device
packages when one of the splash screen is changed (or a new one is added).
In reality, however, the splash screens do not change very frequently.
On the other hand, generating the splash screens dynamically has signficant
disk usage overhead for a minimal ("none" UI) rootfs:
The Python interpreter together with the necessary libraries requires
about ~60 MB of disk space on aarch64.
The splash screens itself require about ~100 KB for 720x1280.
This is not necessary if we move the splash screen generation into
devicepkg-dev, which is used to build the device package for all devices.
Another advantage is that we no longer need the (rather complicated)
caching mechanism for splash screens - so we actually end up with less
lines than before.
rootfs size for samsung-a5ulte ("none" UI):
Before: 450M
After: 388M (-62M)
After this change, every(!) device package needs to be rebuilt once.
No changes are necessary in device packages.
125 lines
4.5 KiB
Bash
125 lines
4.5 KiB
Bash
#!/bin/sh
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startdir=$1
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pkgname=$2
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if [ -z "$startdir" ] || [ -z "$pkgname" ]; then
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echo "ERROR: missing argument!"
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echo "Please call $0 with \$startdir \$pkgname as arguments."
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exit 1
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fi
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srcdir="$startdir/src"
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if [ ! -f "$srcdir/deviceinfo" ]; then
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echo "NOTE: $0 is intended to be used inside of the build() function"
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echo "of a device package's APKBUILD only."
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echo "ERROR: deviceinfo file missing!"
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exit 1
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fi
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# shellcheck disable=SC1090,SC1091
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. "$srcdir/deviceinfo"
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# Create splash screens
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generate_splash_screens()
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{
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splash_config="/etc/postmarketos/splash.ini"
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splash_width=${deviceinfo_screen_width:-720}
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splash_height=${deviceinfo_screen_height:-1280}
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# Overwrite $@ to easily iterate over the splash screens. Format:
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# $1: splash_name
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# $2: text
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# $3: arguments
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set -- "splash-loading" "Loading..." "--center" \
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"splash-noboot" "boot partition not found\\nhttps://postmarketos.org/troubleshooting" "--center" \
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"splash-noinitramfsextra" "initramfs-extra not found\\nhttps://postmarketos.org/troubleshooting" "--center" \
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"splash-norootfs" "rootfs not found\\nhttps://postmarketos.org/troubleshooting" "--center" \
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"splash-mounterror" "unable to mount root partition\\nhttps://postmarketos.org/troubleshooting" "--center" \
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"splash-debug-shell" "WARNING\\ndebug-shell is active\\nhttps://postmarketos.org/debug-shell" "--center" \
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"splash-charging-error" "CHARGING MODE\\nerror starting charging-sdl\\nhttps://postmarketos.org/troubleshooting" "--center"
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# Loop through the splash screens definitions
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while [ $# -gt 2 ]
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do
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splash_name=$1
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splash_text=$2
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splash_args=$3
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if [ "${deviceinfo_framebuffer_landscape}" == "true" ]; then
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splash_args="${splash_args} --landscape"
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fi
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# shellcheck disable=SC2086
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pmos-make-splash --text="${splash_text}" $splash_args --config "${splash_config}" \
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"$splash_width" "$splash_height" "$srcdir/${splash_name}.ppm"
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gzip "$srcdir/${splash_name}.ppm"
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shift 3 # move to the next 3 arguments
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done
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}
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# Convert an input calibration matrix from pixel coordinates to 0-1 coordinates
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# and echo it for libinput.
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# Parameters:
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# $1: x multiplier for x coordinate
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# $2: y multiplier for x coordinate
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# $3: pixel offset for x coordinate
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# $4: x multiplier for y coordinate
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# $5: y multiplier for y coordinate
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# $6: pixel offset for y coordinate
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echo_libinput_calibration()
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{
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# Check if we have got the required number of parameters.
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if [ $# -ne 6 ]; then
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echo "WARNING: There must be exactly 6 (or 0) values for the touchscreen calibration." >&2
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echo "WARNING: No calibration matrix for x11/libinput will be generated." >&2
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return
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fi
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# Check if we have got a screen width and screen height.
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# shellcheck disable=SC2154
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if [ -z "$deviceinfo_screen_width" ] || [ -z "$deviceinfo_screen_height" ]; then
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echo "WARNING: Screen width and height are required to generate a calibration matrix for x11/libinput." >&2
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echo "WARNING: No calibration matrix for x11/libinput will be generated." >&2
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return
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fi
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# Perform the actual conversion: divide both offsets by width/height.
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# As the "dc" command from "bc" is incompatible to the one provided by busybox,
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# this calls busybox explicitly.
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# shellcheck disable=SC2154
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x_offset=$(busybox dc "$3" "$deviceinfo_screen_width" / p)
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# shellcheck disable=SC2154
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y_offset=$(busybox dc "$6" "$deviceinfo_screen_height" / p)
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# Check if we have got results from dc. If there was an error, dc should have
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# printed an error message that hopefully gives the user a hint why it failed.
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if [ -z "$x_offset" ] || [ -z "$y_offset" ]; then
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echo "WARNING: Calculating the offsets for the calibration matrix for x11/libinput failed." >&2
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echo "No calibration matrix for x11/libinput will be generated." >&2
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return
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fi
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echo "ENV{LIBINPUT_CALIBRATION_MATRIX}=\"$1 $2 $x_offset $4 $5 $y_offset\", \\"
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}
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generate_splash_screens
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# shellcheck disable=SC2154
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if [ -n "$deviceinfo_dev_touchscreen" ]; then
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# Create touchscreen udev rule
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{
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echo "SUBSYSTEM==\"input\", ENV{DEVNAME}==\"$deviceinfo_dev_touchscreen\", \\"
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# shellcheck disable=SC2154
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if [ -n "$deviceinfo_dev_touchscreen_calibration" ]; then
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echo "ENV{WL_CALIBRATION}=\"$deviceinfo_dev_touchscreen_calibration\", \\"
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# The following intentionally expands the touchscreen calibration into the
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# 6 values that should be there.
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# shellcheck disable=SC2086
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echo_libinput_calibration $deviceinfo_dev_touchscreen_calibration
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fi
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echo "ENV{ID_INPUT}=\"1\", ENV{ID_INPUT_TOUCHSCREEN}=\"1\""
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} > "$srcdir/90-$pkgname.rules"
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fi
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