Add: Fluidsynth music driver support (jmak)
Charles Pigott
6 years ago
committed by
Niels Martin Hansen
parent
1e68b9b3e6
commit
0c619b7c4b
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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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*/
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/** @file fluidsynth.cpp Playing music via the fluidsynth library. */
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#include "../stdafx.h"
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#include "../openttd.h"
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#include "../sound_type.h"
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#include "../debug.h"
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#include "fluidsynth.h"
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#include "midifile.hpp"
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#include <fluidsynth.h>
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static struct {
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fluid_settings_t* settings; ///< FluidSynth settings handle
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fluid_synth_t* synth; ///< FluidSynth synthesizer handle
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fluid_audio_driver_t* adriver; ///< FluidSynth audio driver handle
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fluid_player_t* player; ///< FluidSynth MIDI player handle
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} _midi; ///< Metadata about the midi we're playing.
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/** Factory for the FluidSynth driver. */
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static FMusicDriver_FluidSynth iFMusicDriver_FluidSynth;
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/** List of sound fonts to try by default. */
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static const char *default_sf[] = {
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/* Debian/Ubuntu/OpenSUSE preferred */
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"/usr/share/sounds/sf2/FluidR3_GM.sf2",
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/* RedHat/Fedora/Arch preferred */
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"/usr/share/soundfonts/FluidR3_GM.sf2",
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/* Debian/Ubuntu/OpenSUSE alternatives */
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"/usr/share/sounds/sf2/TimGM6mb.sf2",
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"/usr/share/sounds/sf2/FluidR3_GS.sf2",
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NULL
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};
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const char *MusicDriver_FluidSynth::Start(const char * const *param)
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{
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const char *driver_name = GetDriverParam(param, "driver");
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const char *sfont_name = GetDriverParam(param, "soundfont");
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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. */
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_midi.settings = new_fluid_settings();
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if (!_midi.settings) return "Could not create midi settings";
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if (fluid_settings_setstr(_midi.settings, "audio.driver", driver_name) != 1) {
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return "Could not set audio driver name";
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}
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/* Create the synthesizer. */
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_midi.synth = new_fluid_synth(_midi.settings);
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if (!_midi.synth) return "Could not open synth";
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/* Create the audio driver. The synthesizer starts playing as soon
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as the driver is created. */
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_midi.adriver = new_fluid_audio_driver(_midi.settings, _midi.synth);
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if (!_midi.adriver) return "Could not open audio driver";
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/* Load a SoundFont and reset presets (so that new instruments
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* get used from the SoundFont) */
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if (!sfont_name) {
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int i;
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sfont_id = FLUID_FAILED;
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for (i = 0; default_sf[i]; i++) {
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if (!fluid_is_soundfont(default_sf[i])) continue;
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sfont_id = fluid_synth_sfload(_midi.synth, default_sf[i], 1);
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if (sfont_id != FLUID_FAILED) break;
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}
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if (sfont_id == FLUID_FAILED) return "Could not open any sound font";
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} else {
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sfont_id = fluid_synth_sfload(_midi.synth, sfont_name, 1);
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if (sfont_id == FLUID_FAILED) return "Could not open sound font";
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}
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_midi.player = NULL;
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return NULL;
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}
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void MusicDriver_FluidSynth::Stop()
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{
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this->StopSong();
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delete_fluid_audio_driver(_midi.adriver);
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delete_fluid_synth(_midi.synth);
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delete_fluid_settings(_midi.settings);
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}
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void MusicDriver_FluidSynth::PlaySong(const MusicSongInfo &song)
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{
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std::string filename = MidiFile::GetSMFFile(song);
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this->StopSong();
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if (filename.empty()) {
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return;
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}
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_midi.player = new_fluid_player(_midi.synth);
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if (!_midi.player) {
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DEBUG(driver, 0, "Could not create midi player");
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return;
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}
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if (fluid_player_add(_midi.player, filename.c_str()) != FLUID_OK) {
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DEBUG(driver, 0, "Could not open music file");
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delete_fluid_player(_midi.player);
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_midi.player = NULL;
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return;
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}
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if (fluid_player_play(_midi.player) != FLUID_OK) {
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DEBUG(driver, 0, "Could not start midi player");
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delete_fluid_player(_midi.player);
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_midi.player = NULL;
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return;
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}
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}
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void MusicDriver_FluidSynth::StopSong()
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{
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if (!_midi.player) return;
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fluid_player_stop(_midi.player);
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if (fluid_player_join(_midi.player) != FLUID_OK) {
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DEBUG(driver, 0, "Could not join player");
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}
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delete_fluid_player(_midi.player);
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fluid_synth_system_reset(_midi.synth);
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_midi.player = NULL;
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}
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bool MusicDriver_FluidSynth::IsSongPlaying()
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{
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if (!_midi.player) return false;
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return fluid_player_get_status(_midi.player) == FLUID_PLAYER_PLAYING;
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}
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void MusicDriver_FluidSynth::SetVolume(byte vol)
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{
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/* Allowed range of synth.gain is 0.0 to 10.0 */
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if (fluid_settings_setnum(_midi.settings, "synth.gain", 1.0 * vol / 128.0) != 1) {
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DEBUG(driver, 0, "Could not set volume");
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}
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}
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@ -0,0 +1,41 @@
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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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*/
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/** @file fluidsynth.h Base for FluidSynth music playback. */
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#ifndef MUSIC_FLUIDSYNTH_H
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#define MUSIC_FLUIDSYNTH_H
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#include "music_driver.hpp"
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/** Music driver making use of FluidSynth. */
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class MusicDriver_FluidSynth : public MusicDriver {
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public:
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/* 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);
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/* virtual */ const char *GetName() const { return "fluidsynth"; }
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};
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/** Factory for the fluidsynth driver. */
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class FMusicDriver_FluidSynth : public DriverFactoryBase {
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public:
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FMusicDriver_FluidSynth() : DriverFactoryBase(Driver::DT_MUSIC, 5, "fluidsynth", "FluidSynth MIDI Driver") {}
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/* virtual */ Driver *CreateInstance() const { return new MusicDriver_FluidSynth(); }
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};
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#endif /* MUSIC_FLUIDSYNTH_H */
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