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Add: Fluidsynth music driver support (jmak)
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| Original file line number | Diff line number | Diff line change |
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| /* $Id$ */ | ||
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| /* | ||
| * 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/>. | ||
| */ | ||
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| /** @file fluidsynth.cpp Playing music via the fluidsynth library. */ | ||
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| #include "../stdafx.h" | ||
| #include "../openttd.h" | ||
| #include "../sound_type.h" | ||
| #include "../debug.h" | ||
| #include "fluidsynth.h" | ||
| #include "midifile.hpp" | ||
| #include <fluidsynth.h> | ||
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| static struct { | ||
| fluid_settings_t* settings; ///< FluidSynth settings handle | ||
| fluid_synth_t* synth; ///< FluidSynth synthesizer handle | ||
| fluid_audio_driver_t* adriver; ///< FluidSynth audio driver handle | ||
| fluid_player_t* player; ///< FluidSynth MIDI player handle | ||
| } _midi; ///< Metadata about the midi we're playing. | ||
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| /** Factory for the FluidSynth driver. */ | ||
| static FMusicDriver_FluidSynth iFMusicDriver_FluidSynth; | ||
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| /** List of sound fonts to try by default. */ | ||
| static const char *default_sf[] = { | ||
| /* Debian/Ubuntu/OpenSUSE preferred */ | ||
| "/usr/share/sounds/sf2/FluidR3_GM.sf2", | ||
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| /* RedHat/Fedora/Arch preferred */ | ||
| "/usr/share/soundfonts/FluidR3_GM.sf2", | ||
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| /* Debian/Ubuntu/OpenSUSE alternatives */ | ||
| "/usr/share/sounds/sf2/TimGM6mb.sf2", | ||
| "/usr/share/sounds/sf2/FluidR3_GS.sf2", | ||
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| NULL | ||
| }; | ||
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| const char *MusicDriver_FluidSynth::Start(const char * const *param) | ||
| { | ||
| const char *driver_name = GetDriverParam(param, "driver"); | ||
| const char *sfont_name = GetDriverParam(param, "soundfont"); | ||
| int sfont_id; | ||
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| if (!driver_name) driver_name = "alsa"; | ||
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| DEBUG(driver, 1, "Fluidsynth: driver %s, sf %s", driver_name, sfont_name); | ||
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| /* Create the settings. */ | ||
| _midi.settings = new_fluid_settings(); | ||
| if (!_midi.settings) return "Could not create midi settings"; | ||
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| if (fluid_settings_setstr(_midi.settings, "audio.driver", driver_name) != 1) { | ||
| return "Could not set audio driver name"; | ||
| } | ||
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| /* Create the synthesizer. */ | ||
| _midi.synth = new_fluid_synth(_midi.settings); | ||
| if (!_midi.synth) return "Could not open synth"; | ||
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| /* Create the audio driver. The synthesizer starts playing as soon | ||
| as the driver is created. */ | ||
| _midi.adriver = new_fluid_audio_driver(_midi.settings, _midi.synth); | ||
| if (!_midi.adriver) return "Could not open audio driver"; | ||
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| /* Load a SoundFont and reset presets (so that new instruments | ||
| * get used from the SoundFont) */ | ||
| if (!sfont_name) { | ||
| int i; | ||
| sfont_id = FLUID_FAILED; | ||
| for (i = 0; default_sf[i]; i++) { | ||
| if (!fluid_is_soundfont(default_sf[i])) continue; | ||
| sfont_id = fluid_synth_sfload(_midi.synth, default_sf[i], 1); | ||
| if (sfont_id != FLUID_FAILED) break; | ||
| } | ||
| if (sfont_id == FLUID_FAILED) return "Could not open any sound font"; | ||
| } else { | ||
| sfont_id = fluid_synth_sfload(_midi.synth, sfont_name, 1); | ||
| if (sfont_id == FLUID_FAILED) return "Could not open sound font"; | ||
| } | ||
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| _midi.player = NULL; | ||
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| return NULL; | ||
| } | ||
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| void MusicDriver_FluidSynth::Stop() | ||
| { | ||
| this->StopSong(); | ||
| delete_fluid_audio_driver(_midi.adriver); | ||
| delete_fluid_synth(_midi.synth); | ||
| delete_fluid_settings(_midi.settings); | ||
| } | ||
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| void MusicDriver_FluidSynth::PlaySong(const MusicSongInfo &song) | ||
| { | ||
| std::string filename = MidiFile::GetSMFFile(song); | ||
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| this->StopSong(); | ||
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| if (filename.empty()) { | ||
| return; | ||
| } | ||
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| _midi.player = new_fluid_player(_midi.synth); | ||
| if (!_midi.player) { | ||
| DEBUG(driver, 0, "Could not create midi player"); | ||
| return; | ||
| } | ||
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| if (fluid_player_add(_midi.player, filename.c_str()) != FLUID_OK) { | ||
| DEBUG(driver, 0, "Could not open music file"); | ||
| delete_fluid_player(_midi.player); | ||
| _midi.player = NULL; | ||
| return; | ||
| } | ||
| if (fluid_player_play(_midi.player) != FLUID_OK) { | ||
| DEBUG(driver, 0, "Could not start midi player"); | ||
| delete_fluid_player(_midi.player); | ||
| _midi.player = NULL; | ||
| return; | ||
| } | ||
| } | ||
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| void MusicDriver_FluidSynth::StopSong() | ||
| { | ||
| if (!_midi.player) return; | ||
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| fluid_player_stop(_midi.player); | ||
| if (fluid_player_join(_midi.player) != FLUID_OK) { | ||
| DEBUG(driver, 0, "Could not join player"); | ||
| } | ||
| delete_fluid_player(_midi.player); | ||
| fluid_synth_system_reset(_midi.synth); | ||
| _midi.player = NULL; | ||
| } | ||
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| bool MusicDriver_FluidSynth::IsSongPlaying() | ||
| { | ||
| if (!_midi.player) return false; | ||
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| return fluid_player_get_status(_midi.player) == FLUID_PLAYER_PLAYING; | ||
| } | ||
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| void MusicDriver_FluidSynth::SetVolume(byte vol) | ||
| { | ||
| /* Allowed range of synth.gain is 0.0 to 10.0 */ | ||
| if (fluid_settings_setnum(_midi.settings, "synth.gain", 1.0 * vol / 128.0) != 1) { | ||
| DEBUG(driver, 0, "Could not set volume"); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| /* $Id$ */ | ||
|
|
||
| /* | ||
| * 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/>. | ||
| */ | ||
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| /** @file fluidsynth.h Base for FluidSynth music playback. */ | ||
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| #ifndef MUSIC_FLUIDSYNTH_H | ||
| #define MUSIC_FLUIDSYNTH_H | ||
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| #include "music_driver.hpp" | ||
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| /** Music driver making use of FluidSynth. */ | ||
| class MusicDriver_FluidSynth : public MusicDriver { | ||
| public: | ||
| /* virtual */ const char *Start(const char * const *param); | ||
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| /* virtual */ void Stop(); | ||
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| /* virtual */ void PlaySong(const MusicSongInfo &song); | ||
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| /* virtual */ void StopSong(); | ||
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| /* virtual */ bool IsSongPlaying(); | ||
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| /* virtual */ void SetVolume(byte vol); | ||
| /* virtual */ const char *GetName() const { return "fluidsynth"; } | ||
| }; | ||
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| /** Factory for the fluidsynth driver. */ | ||
| class FMusicDriver_FluidSynth : public DriverFactoryBase { | ||
| public: | ||
| FMusicDriver_FluidSynth() : DriverFactoryBase(Driver::DT_MUSIC, 5, "fluidsynth", "FluidSynth MIDI Driver") {} | ||
| /* virtual */ Driver *CreateInstance() const { return new MusicDriver_FluidSynth(); } | ||
| }; | ||
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| #endif /* MUSIC_FLUIDSYNTH_H */ |