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//-------------------------------------------------------------------------
/*
Copyright (C) 2018 Jakob L. Kreuze
This file is part of EDuke32.
EDuke32 is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
//-------------------------------------------------------------------------
/*
* Replacement for the SDL2_Mixer reimplementation of Jim Dose's FX_MAN
* routines, for anyone troubled by the shitty internal version of TiMidity.
*/
#include "fluidsynth_inc.h"
#include "duke3d.h"
#include "game.h"
#include "music.h"
#include "midi.h"
static bool music_initialized = false;
static fluid_synth_t *synth;
static fluid_settings_t *settings;
static fluid_player_t *player;
static fluid_audio_driver_t *driver;
static const char *backend_names[10] = {
"unknown",
"jack",
"alsa",
"oss",
"pulseaudio",
"coreaudio",
"dsound",
"portaudio",
"sndman",
"dart",
};
const char *MUSIC_ErrorString(int32_t ErrorNumber)
{
switch (ErrorNumber)
{
default:
return "Unknown error.";
}
return NULL;
}
int32_t MUSIC_Init(int32_t SoundCard, int32_t Address)
{
int32_t backend = ud.config.FluidsynthBackend;
if (getenv("EDUKE32_MUSIC_CMD")) {
initprintf("External MIDI player not supported by Fluidsynth backend");
}
if (music_initialized) {
// Music system is already initialized
// return MUSIC_Error;
return MUSIC_Ok;
}
settings = new_fluid_settings();
MUSIC_SetVolume(ud.config.MusicVolume);
if (backend) {
fluid_settings_setstr(settings, "audio.driver", backend_names[backend]);
}
synth = new_fluid_synth(settings);
player = new_fluid_player(synth);
driver = new_fluid_audio_driver(settings, synth);
fluid_synth_sfload(synth, "/usr/share/soundfonts/FluidR3_GM.sf2", 1);
return MIDI_Ok;
}
int32_t MUSIC_Shutdown(void)
{
delete_fluid_player(player);
delete_fluid_audio_driver(driver);
delete_fluid_synth(synth);
delete_fluid_settings(settings);
music_initialized = false;
return MUSIC_Ok;
}
void MUSIC_SetVolume(int32_t volume)
{
double val = ((double) volume) * 0.00390625;
fluid_settings_setnum(settings, "synth.gain", val);
}
int32_t MUSIC_GetVolume(void)
{
double val;
fluid_settings_getnum(settings, "synth.gain", &val);
return (int32_t) (val / 0.00390625);
}
void MUSIC_SetLoopFlag(int32_t loopflag)
{
fluid_player_set_loop(player, loopflag == MUSIC_LoopSong ? -1 : 1);
}
void MUSIC_Continue(void)
{
fluid_player_play(player);
}
void MUSIC_Pause(void)
{
fluid_player_stop(player);
}
int32_t MUSIC_StopSong(void)
{
fluid_player_stop(player);
MUSIC_Shutdown();
MUSIC_Init(0, 0);
return MUSIC_Ok;
}
// Fun fact to any onlookers: The part that parses the MIDI file and
// figures out how long it is worked on the first try and it's a format
// I've never worked with before. I celebrated.
int32_t MUSIC_PlaySong(char *song, int32_t loopflag)
{
char *tracks;
size_t file_size;
uint16_t num_tracks;
tracks = song + 0x14;
num_tracks = *((uint16_t *) (song + 0x10));
file_size = 0x14; // Size of the header.
while (num_tracks--) {
uint16_t track_size;
if (!memcmp(tracks, "MTrk", 4)) {
break;
}
track_size = *((uint16_t *) (tracks + 0x04));
file_size += track_size + 0x08;
tracks += track_size + 0x08;
}
fluid_player_add_mem(player, song, file_size);
fluid_player_play(player);
return MUSIC_Ok;
}
int32_t MUSIC_InitMidi(int32_t card, midifuncs *Funcs, int32_t Address)
{
return MIDI_Ok;
}
void MUSIC_Update(void) {}
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