diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/driver.cpp | 6 | ||||
| -rw-r--r-- | src/music/libtimidity.cpp | 143 | ||||
| -rw-r--r-- | src/music/libtimidity.h | 10 |
3 files changed, 158 insertions, 1 deletions
diff --git a/src/driver.cpp b/src/driver.cpp index d5771c0a9..6c25cfc8c 100644 --- a/src/driver.cpp +++ b/src/driver.cpp @@ -15,6 +15,7 @@ #include "music/os2_m.h" #include "music/win32_m.h" #include "music/qtmidi.h" +#include "music/libtimidity.h" #include "sound/null_s.h" #include "sound/sdl_s.h" @@ -58,7 +59,10 @@ static const DriverDesc _music_driver_descs[] = { M("qt", "QuickTime MIDI Driver", &_qtime_music_driver), #endif #ifdef UNIX -#if !defined(__MORPHOS__) && !defined(__AMIGA__) +#if defined(LIBTIMIDITY) + M("libtimidity", "LibTimidity MIDI Driver", &_libtimidity_music_driver), +#endif /* LIBTIMIDITY */ +#if !defined(__MORPHOS__) && !defined(__AMIGA__) && !defined(PSP) M("extmidi", "External MIDI Driver", &_extmidi_music_driver), #endif #endif diff --git a/src/music/libtimidity.cpp b/src/music/libtimidity.cpp new file mode 100644 index 000000000..705d07181 --- /dev/null +++ b/src/music/libtimidity.cpp @@ -0,0 +1,143 @@ +/* $Id: extmidi.c 4692 2006-05-02 19:09:49Z peter1138 $ */ + +#include "../stdafx.h" +#include "../openttd.h" +#include "../sound.h" +#include "../string.h" +#include "../variables.h" +#include "../debug.h" +#include "libtimidity.h" +#include <fcntl.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> +#include <signal.h> +#include <sys/stat.h> +#include <errno.h> +#include <timidity.h> +#if defined(PSP) +#include <pspaudiolib.h> +#endif /* PSP */ + +enum MidiState { + MIDI_STOPPED = 0, + MIDI_PLAYING = 1, +}; + +static struct { + MidIStream *stream; + MidSongOptions options; + MidSong *song; + + MidiState status; + uint32 song_length; + uint32 song_position; +} _midi; + +#if defined(PSP) +static void AudioOutCallback(void *buf, unsigned int _reqn, void *userdata) +{ + memset(buf, 0, _reqn * PSP_NUM_AUDIO_CHANNELS); + if (_midi.status == MIDI_PLAYING) { + mid_song_read_wave(_midi.song, buf, _reqn * PSP_NUM_AUDIO_CHANNELS); + } +} +#endif /* PSP */ + +static const char *LibtimidityMidiStart(const char *const *param) +{ + _midi.status = MIDI_STOPPED; + + if (mid_init(param == NULL ? NULL : (char *)param[0]) < 0) { + /* If init fails, it can be because no configuration was found. + * If it was not forced via param, try to load it without a + * configuration. Who knows that works. */ + if (param != NULL || mid_init_no_config() < 0) { + DEBUG(driver, 0, "error initializing timidity"); + return NULL; + } + } + DEBUG(driver, 1, "successfully initialised timidity"); + + _midi.options.rate = 44100; + _midi.options.format = MID_AUDIO_S16LSB; + _midi.options.channels = 2; +#if defined(PSP) + _midi.options.buffer_size = PSP_NUM_AUDIO_SAMPLES; +#else + _midi.options.buffer_size = _midi.options.rate; +#endif + +#if defined(PSP) + pspAudioInit(); + pspAudioSetChannelCallback(_midi.options.channels, &AudioOutCallback, NULL); + pspAudioSetVolume(_midi.options.channels, PSP_VOLUME_MAX, PSP_VOLUME_MAX); +#endif /* PSP */ + + return NULL; +} + +static void LibtimidityMidiStop(void) +{ + if (_midi.status == MIDI_PLAYING) { + _midi.status = MIDI_STOPPED; + mid_song_free(_midi.song); + } + mid_exit(); +} + +static void LibtimidityMidiPlaySong(const char *filename) +{ + _midi.stream = mid_istream_open_file(filename); + if (_midi.stream == NULL) { + DEBUG(driver, 0, "Could not open music file"); + return; + } + + _midi.song = mid_song_load(_midi.stream, &_midi.options); + mid_istream_close(_midi.stream); + _midi.song_length = mid_song_get_total_time(_midi.song); + + if (_midi.song == NULL) { + DEBUG(driver, 1, "Invalid MIDI file"); + return; + } + + mid_song_start(_midi.song); + _midi.status = MIDI_PLAYING; +} + +static void LibtimidityMidiStopSong(void) +{ + _midi.status = MIDI_STOPPED; + mid_song_free(_midi.song); +} + +static bool LibtimidityMidiIsPlaying(void) +{ + if (_midi.status == MIDI_PLAYING) { + _midi.song_position = mid_song_get_time(_midi.song); + if (_midi.song_position >= _midi.song_length) { + _midi.status = MIDI_STOPPED; + _midi.song_position = 0; + } + } + + return (_midi.status == MIDI_PLAYING); +} + +static void LibtimidityMidiSetVolume(byte vol) +{ + if (_midi.song != NULL) + mid_song_set_volume(_midi.song, vol); +} + +const HalMusicDriver _libtimidity_music_driver = { + LibtimidityMidiStart, + LibtimidityMidiStop, + LibtimidityMidiPlaySong, + LibtimidityMidiStopSong, + LibtimidityMidiIsPlaying, + LibtimidityMidiSetVolume, +}; + diff --git a/src/music/libtimidity.h b/src/music/libtimidity.h new file mode 100644 index 000000000..cf206e4b7 --- /dev/null +++ b/src/music/libtimidity.h @@ -0,0 +1,10 @@ +/* $Id: extmidi.h 2704 2005-07-25 07:16:10Z tron $ */ + +#ifndef MUSIC_LIBTIMIDITY_H +#define MUSIC_LIBTIMIDITY_H + +#include "../hal.h" + +extern const HalMusicDriver _libtimidity_music_driver; + +#endif /* MUSIC_LIBTIMIDITY_H */ |