tron@2186: /* $Id$ */
tron@2186: 
truelight@0: #ifndef __MORPHOS__
tron@2189: #include "../stdafx.h"
tron@2189: #include "../openttd.h"
tron@2189: #include "../sound.h"
tron@2189: #include "../string.h"
tron@2189: #include "../variables.h"
peter1138@3721: #include "../debug.h"
tron@2189: #include "extmidi.h"
tron@1608: #include <fcntl.h>
truelight@0: #include <sys/types.h>
truelight@0: #include <sys/wait.h>
truelight@0: #include <unistd.h>
truelight@0: #include <signal.h>
truelight@0: #include <sys/stat.h>
truelight@0: #include <errno.h>
truelight@0: 
tron@1608: static struct {
tron@1608: 	char song[MAX_PATH];
tron@2458: 	pid_t pid;
tron@1608: } _midi;
truelight@0: 
tron@1608: static void DoPlay(void);
tron@1608: static void DoStop(void);
tron@1608: 
tron@1608: static const char* ExtMidiStart(const char* const * parm)
tron@342: {
tron@1608: 	_midi.song[0] = '\0';
tron@1608: 	_midi.pid = -1;
tron@342: 	return NULL;
truelight@0: }
truelight@0: 
tron@1608: static void ExtMidiStop(void)
tron@342: {
tron@1608: 	_midi.song[0] = '\0';
tron@1608: 	DoStop();
truelight@0: }
truelight@0: 
tron@1608: static void ExtMidiPlaySong(const char* filename)
tron@342: {
tron@1608: 	ttd_strlcpy(_midi.song, filename, lengthof(_midi.song));
tron@1608: 	DoStop();
truelight@0: }
truelight@0: 
tron@1608: static void ExtMidiStopSong(void)
tron@342: {
tron@1608: 	_midi.song[0] = '\0';
tron@1608: 	DoStop();
tron@342: }
tron@342: 
tron@1608: static bool ExtMidiIsPlaying(void)
tron@342: {
tron@1608: 	if (_midi.pid != -1 && waitpid(_midi.pid, NULL, WNOHANG) == _midi.pid)
tron@1608: 		_midi.pid = -1;
tron@1608: 	if (_midi.pid == -1 && _midi.song[0] != '\0') DoPlay();
tron@1608: 	return _midi.pid != -1;
tron@342: }
tron@342: 
tron@1608: static void ExtMidiSetVolume(byte vol)
tron@342: {
Darkvater@5568: 	DEBUG(driver, 1, "extmidi: set volume not implemented");
truelight@0: }
truelight@0: 
tron@1608: static void DoPlay(void)
tron@1608: {
tron@1608: 	_midi.pid = fork();
tron@1608: 	switch (_midi.pid) {
tron@1608: 		case 0: {
tron@1608: 			int d;
tron@1608: 
tron@1608: 			close(0);
tron@1608: 			d = open("/dev/null", O_RDONLY);
tron@2420: 			if (d != -1 && dup2(d, 1) != -1 && dup2(d, 2) != -1) {
tron@2420: 				#if defined(MIDI_ARG)
tron@2420: 					execlp(msf.extmidi, "extmidi", MIDI_ARG, _midi.song, (char*)0);
tron@2420: 				#else
tron@2420: 					execlp(msf.extmidi, "extmidi", _midi.song, (char*)0);
tron@2420: 				#endif
tron@1608: 			}
tron@2412: 			_exit(1);
tron@1608: 		}
tron@1608: 
tron@1608: 		case -1:
Darkvater@5568: 			DEBUG(driver, 0, "extmidi: couldn't fork: %s", strerror(errno));
tron@1608: 			/* FALLTHROUGH */
tron@1608: 
tron@1608: 		default:
tron@1608: 			_midi.song[0] = '\0';
tron@1608: 			break;
tron@1608: 	}
tron@1608: }
tron@1608: 
tron@1608: static void DoStop(void)
tron@1608: {
tron@1608: 	if (_midi.pid != -1) kill(_midi.pid, SIGTERM);
tron@1608: }
tron@1608: 
truelight@0: const HalMusicDriver _extmidi_music_driver = {
tron@1608: 	ExtMidiStart,
tron@1608: 	ExtMidiStop,
tron@1608: 	ExtMidiPlaySong,
tron@1608: 	ExtMidiStopSong,
tron@1608: 	ExtMidiIsPlaying,
tron@1608: 	ExtMidiSetVolume,
truelight@0: };
tron@342: 
truelight@0: #endif /* __MORPHOS__ */