1 files changed, 61 insertions, 0 deletions
diff --git a/games/opendune/opendune.sh b/games/opendune/opendune.sh
new file mode 100644
index 0000000000..92ea248977
--- /dev/null
+++ b/games/opendune/opendune.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+
+# shell script wrapper for SBo games/opendune
+# written by B. Watson, licensed under the WTFPL.
+
+# this wrapper is needed because the game uses timidity in alsa client
+# mode for MIDI audio, but doesn't start timidity itself (it just tells
+# you to). so this script starts it, if necessary (and if possible). if
+# timidity isn't installed, we don't complain about it, just run the
+# game without it (the game will complain so this script doesn't have to).
+
+# if timidity or some other alsa client is running (if there are writable
+# MIDI ports other than 'MIDI Through'), we won't start anything.
+
+# when the game is through running, we have to kill off timidity if we
+# started it (not if it was already running). unfortunately timidity's
+# daemon mode doesn't write a PID file, and it forks so we can't easily
+# get the PID, so we can't use daemon mode.
+
+# the code in src/audio/midi_alsa.c of the game will actually connect
+# to the first writable, subscribable port it can find, other than
+# "Midi Through". so if the user's already running some MIDI daemon
+# like FluidSynth, the game will use it, and we shouldn't be starting
+# timidity here.
+
+# KNOWN ISSUE: if lashd is running, it sometimes creates a MIDI port that
+# doesn't appear in aconnect's list, but opendune will see & connect to
+# it. Result is that you get no complaint about timidity not running,
+# but don't hear any audio either.
+
+if [ "$( aconnect -o | grep -v 'Midi Through' )" = "" ]; then
+	if which timidity &> /dev/null; then
+		timidity -iAq &
+		kidpid="$!"
+
+		# it might take timidity a while to start up & register its MIDI port.
+		# we wait up to 10 sec for it to start.
+		for i in 0 1 2 3 4; do
+			sleep $i
+			if [ "$( aconnect -o | grep TiMidity )" != "" ]; then
+				break
+			fi
+		done
+	fi
+fi
+
+# run the game, wait for it to exit. its status will be the
+# return value of this script.
+/usr/libexec/opendune/opendune "$@"
+retval="$?"
+
+# kill timidity, if we started it. PIDs can get reused, we don't
+# want to kill some random process if timidity already exited and
+# its PID got reused, so check & make sure it really is timidity.
+if [ "$kidpid" != "" ]; then
+	if [ "$( ps h -o comm $kidpid )" = "timidity" ]; then
+		kill "$kidpid"
+	fi
+fi
+
+exit $retval