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Location: cpp/openttd-patchpack/source/src/music/libtimidity.cpp
r16193:3bdec9156497
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(svn r20903) -Update from WebTranslator v3.0:
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catalan - 2 changes by arnau
croatian - 2 changes by VoyagerOne
dutch - 2 changes by habell
finnish - 4 changes by jpx_
french - 2 changes by glx
german - 2 changes by planetmaker
ido - 34 changes by Edwardo
marathi - 40 changes by jcravi
polish - 2 changes by voythas
russian - 2 changes by Lone_Wolf
serbian - 2 changes by etran
spanish - 2 changes by Terkhen
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file libtimidity.cpp Playing music via the timidity library. */
#include "../stdafx.h"
#include "../openttd.h"
#include "../sound_type.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 FMusicDriver_LibTimidity iFMusicDriver_LibTimidity;
const char *MusicDriver_LibTimidity::Start(const char * const *param)
{
_midi.status = MIDI_STOPPED;
_midi.song = NULL;
if (mid_init(param == NULL ? NULL : const_cast<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) {
return "error initializing timidity";
}
}
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;
}
void MusicDriver_LibTimidity::Stop()
{
if (_midi.status == MIDI_PLAYING) this->StopSong();
mid_exit();
}
void MusicDriver_LibTimidity::PlaySong(const char *filename)
{
this->StopSong();
_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;
}
void MusicDriver_LibTimidity::StopSong()
{
_midi.status = MIDI_STOPPED;
/* mid_song_free cannot handle NULL! */
if (_midi.song != NULL) mid_song_free(_midi.song);
_midi.song = NULL;
}
bool MusicDriver_LibTimidity::IsSongPlaying()
{
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);
}
void MusicDriver_LibTimidity::SetVolume(byte vol)
{
if (_midi.song != NULL) mid_song_set_volume(_midi.song, vol);
}
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