author | belugas |
Tue, 17 Apr 2007 20:23:13 +0000 | |
changeset 6481 | 85ad87daf4b0 |
parent 6247 | 7d81e3a5d803 |
child 7170 | 923946ec324f |
permissions | -rw-r--r-- |
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/* $Id$ */ |
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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 "../debug.h" |
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#include "libtimidity.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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#include <timidity.h> |
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#if defined(PSP) |
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#include <pspaudiolib.h> |
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#endif /* PSP */ |
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enum MidiState { |
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MIDI_STOPPED = 0, |
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MIDI_PLAYING = 1, |
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}; |
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static struct { |
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MidIStream *stream; |
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MidSongOptions options; |
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MidSong *song; |
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MidiState status; |
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uint32 song_length; |
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uint32 song_position; |
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} _midi; |
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#if defined(PSP) |
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static void AudioOutCallback(void *buf, unsigned int _reqn, void *userdata) |
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{ |
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memset(buf, 0, _reqn * PSP_NUM_AUDIO_CHANNELS); |
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if (_midi.status == MIDI_PLAYING) { |
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mid_song_read_wave(_midi.song, buf, _reqn * PSP_NUM_AUDIO_CHANNELS); |
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} |
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} |
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#endif /* PSP */ |
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static const char *LibtimidityMidiStart(const char *const *param) |
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{ |
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_midi.status = MIDI_STOPPED; |
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if (mid_init(param == NULL ? NULL : (char *)param[0]) < 0) { |
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/* If init fails, it can be because no configuration was found. |
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* If it was not forced via param, try to load it without a |
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* configuration. Who knows that works. */ |
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if (param != NULL || mid_init_no_config() < 0) { |
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DEBUG(driver, 0, "error initializing timidity"); |
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return NULL; |
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} |
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} |
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DEBUG(driver, 1, "successfully initialised timidity"); |
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_midi.options.rate = 44100; |
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_midi.options.format = MID_AUDIO_S16LSB; |
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_midi.options.channels = 2; |
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#if defined(PSP) |
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_midi.options.buffer_size = PSP_NUM_AUDIO_SAMPLES; |
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#else |
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_midi.options.buffer_size = _midi.options.rate; |
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#endif |
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#if defined(PSP) |
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pspAudioInit(); |
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pspAudioSetChannelCallback(_midi.options.channels, &AudioOutCallback, NULL); |
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pspAudioSetVolume(_midi.options.channels, PSP_VOLUME_MAX, PSP_VOLUME_MAX); |
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#endif /* PSP */ |
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return NULL; |
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} |
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static void LibtimidityMidiStop() |
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{ |
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if (_midi.status == MIDI_PLAYING) { |
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_midi.status = MIDI_STOPPED; |
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mid_song_free(_midi.song); |
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} |
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mid_exit(); |
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} |
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static void LibtimidityMidiPlaySong(const char *filename) |
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{ |
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_midi.stream = mid_istream_open_file(filename); |
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if (_midi.stream == NULL) { |
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DEBUG(driver, 0, "Could not open music file"); |
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return; |
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} |
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_midi.song = mid_song_load(_midi.stream, &_midi.options); |
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mid_istream_close(_midi.stream); |
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_midi.song_length = mid_song_get_total_time(_midi.song); |
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if (_midi.song == NULL) { |
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DEBUG(driver, 1, "Invalid MIDI file"); |
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return; |
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} |
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105 |
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mid_song_start(_midi.song); |
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_midi.status = MIDI_PLAYING; |
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108 |
} |
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6247 | 110 |
static void LibtimidityMidiStopSong() |
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111 |
{ |
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_midi.status = MIDI_STOPPED; |
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mid_song_free(_midi.song); |
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114 |
} |
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static bool LibtimidityMidiIsPlaying() |
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117 |
{ |
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if (_midi.status == MIDI_PLAYING) { |
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_midi.song_position = mid_song_get_time(_midi.song); |
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if (_midi.song_position >= _midi.song_length) { |
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_midi.status = MIDI_STOPPED; |
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_midi.song_position = 0; |
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123 |
} |
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124 |
} |
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125 |
|
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return (_midi.status == MIDI_PLAYING); |
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127 |
} |
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128 |
|
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129 |
static void LibtimidityMidiSetVolume(byte vol) |
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130 |
{ |
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131 |
if (_midi.song != NULL) |
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mid_song_set_volume(_midi.song, vol); |
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133 |
} |
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134 |
|
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const HalMusicDriver _libtimidity_music_driver = { |
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136 |
LibtimidityMidiStart, |
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LibtimidityMidiStop, |
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138 |
LibtimidityMidiPlaySong, |
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139 |
LibtimidityMidiStopSong, |
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140 |
LibtimidityMidiIsPlaying, |
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LibtimidityMidiSetVolume, |
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142 |
}; |
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143 |