mirror of
https://github.com/koreader/koreader
synced 2024-11-13 19:11:25 +00:00
73 lines
2.3 KiB
Bash
73 lines
2.3 KiB
Bash
#!/bin/sh
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## A bit of helper functions...
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# Check which type of init system we're running on
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if [ -d /etc/upstart ]; then
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export INIT_TYPE="upstart"
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# We'll need that for logging
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# shellcheck disable=SC1091
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[ -f /etc/upstart/functions ] && . /etc/upstart/functions
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else
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export INIT_TYPE="sysv"
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# We'll need that for logging
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# shellcheck disable=SC1091
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[ -f /etc/rc.d/functions ] && . /etc/rc.d/functions
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fi
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# Adapted from libkh[5]
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## Check if we have an FBInk binary available somewhere...
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# Default to something that won't horribly blow up...
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FBINK_BIN="true"
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for my_dir in libkh/bin koreader linkss/bin linkfonts/bin usbnet/bin; do
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my_fbink="/mnt/us/${my_dir}/fbink"
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if [ -x "${my_fbink}" ]; then
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FBINK_BIN="${my_fbink}"
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# Got it!
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break
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fi
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done
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has_fbink() {
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# Because the fallback is the "true" binary/shell built-in ;).
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if [ "${FBINK_BIN}" != "true" ]; then
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# Got it!
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return 0
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fi
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# If we got this far, we don't have fbink installed
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return 1
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}
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# NOTE: Yeah, the name becomes a bit of a lie now that we're exclusively using FBInk ;p.
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eips_print_bottom_centered() {
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# We need at least two args
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if [ $# -lt 2 ]; then
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echo "not enough arguments passed to eips_print_bottom ($# while we need at least 2)"
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return
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fi
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kh_eips_string="${1}"
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kh_eips_y_shift_up="${2}"
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# Unlike eips, we need at least a single space to even try to print something ;).
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if [ "${kh_eips_string}" = "" ]; then
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kh_eips_string=" "
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fi
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# Sleep a tiny bit to workaround the logic in the 'new' (K4+) eInk controllers that tries to bundle updates,
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# otherwise it may drop part of our messages because of other screen updates from KUAL...
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# Unless we really don't want to sleep, for special cases...
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if [ -z "${EIPS_NO_SLEEP}" ]; then
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usleep 150000 # 150ms
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fi
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# NOTE: FBInk will handle the padding. FBInk's default font is square, not tall like eips,
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# so we compensate by tweaking the baseline ;). This matches the baseline we use on Kobo, too.
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if has_fbink; then
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${FBINK_BIN} -qpm -y $((-4 - kh_eips_y_shift_up)) "${kh_eips_string}"
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else
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# Crappy fallback
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eips 0 0 "${kh_eips_string}" >/dev/null
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fi
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}
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