mirror of
https://github.com/JGRennison/OpenTTD-patches.git
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112 lines
1.9 KiB
C
112 lines
1.9 KiB
C
/* $Id$ */
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#ifndef __MORPHOS__
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#include "../stdafx.h"
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#include "../openttd.h"
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#include "../sound.h"
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#include "../string.h"
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#include "../variables.h"
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#include "extmidi.h"
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/stat.h>
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#include <errno.h>
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static struct {
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char song[MAX_PATH];
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int pid;
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} _midi;
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static void DoPlay(void);
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static void DoStop(void);
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static const char* ExtMidiStart(const char* const * parm)
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{
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_midi.song[0] = '\0';
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_midi.pid = -1;
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return NULL;
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}
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static void ExtMidiStop(void)
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{
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_midi.song[0] = '\0';
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DoStop();
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}
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static void ExtMidiPlaySong(const char* filename)
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{
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ttd_strlcpy(_midi.song, filename, lengthof(_midi.song));
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DoStop();
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}
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static void ExtMidiStopSong(void)
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{
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_midi.song[0] = '\0';
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DoStop();
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}
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static bool ExtMidiIsPlaying(void)
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{
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if (_midi.pid != -1 && waitpid(_midi.pid, NULL, WNOHANG) == _midi.pid)
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_midi.pid = -1;
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if (_midi.pid == -1 && _midi.song[0] != '\0') DoPlay();
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return _midi.pid != -1;
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}
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static void ExtMidiSetVolume(byte vol)
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{
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fprintf(stderr, "extmidi: set volume not implemented\n");
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}
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static void DoPlay(void)
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{
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_midi.pid = fork();
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switch (_midi.pid) {
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case 0: {
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int d;
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close(0);
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close(1);
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close(2);
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d = open("/dev/null", O_RDONLY);
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if (d != -1) {
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if (dup2(d, 1) != -1 && dup2(d, 2) != -1) {
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#if defined(MIDI_ARG)
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execlp(msf.extmidi, "extmidi", MIDI_ARG, _midi.song, NULL);
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#else
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execlp(msf.extmidi, "extmidi", _midi.song, NULL);
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#endif
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}
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}
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_exit(1);
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}
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case -1:
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fprintf(stderr, "extmidi: couldn't fork: %s\n", strerror(errno));
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/* FALLTHROUGH */
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default:
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_midi.song[0] = '\0';
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break;
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}
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}
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static void DoStop(void)
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{
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if (_midi.pid != -1) kill(_midi.pid, SIGTERM);
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}
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const HalMusicDriver _extmidi_music_driver = {
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ExtMidiStart,
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ExtMidiStop,
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ExtMidiPlaySong,
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ExtMidiStopSong,
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ExtMidiIsPlaying,
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ExtMidiSetVolume,
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};
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#endif /* __MORPHOS__ */
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