499 lines
20 KiB
Rust
499 lines
20 KiB
Rust
use std::sync::mpsc;
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use std::sync::mpsc::{Receiver, Sender};
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use std::time::Duration;
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use cpal::Sample;
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use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
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#[cfg(feature = "ogg-playback")]
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use lewton::inside_ogg::OggStreamReader;
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use num_traits::clamp;
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use crate::engine_constants::EngineConstants;
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use crate::framework::context::Context;
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use crate::framework::error::{GameError, GameResult};
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use crate::framework::error::GameError::{AudioError, InvalidValue};
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use crate::framework::filesystem;
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use crate::framework::filesystem::File;
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use crate::settings::Settings;
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#[cfg(feature = "ogg-playback")]
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use crate::sound::ogg_playback::{OggPlaybackEngine, SavedOggPlaybackState};
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use crate::sound::org_playback::{OrgPlaybackEngine, SavedOrganyaPlaybackState};
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use crate::sound::organya::Song;
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use crate::sound::pixtone::PixTonePlayback;
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use crate::sound::wave_bank::SoundBank;
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use crate::str;
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#[cfg(feature = "ogg-playback")]
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mod ogg_playback;
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mod org_playback;
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mod organya;
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mod pixtone;
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mod pixtone_sfx;
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mod stuff;
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mod wav;
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mod wave_bank;
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pub struct SoundManager {
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tx: Sender<PlaybackMessage>,
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prev_song_id: usize,
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current_song_id: usize,
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}
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enum SongFormat {
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Organya,
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#[cfg(feature = "ogg-playback")]
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OggSinglePart,
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#[cfg(feature = "ogg-playback")]
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OggMultiPart,
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}
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impl SoundManager {
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pub fn new(ctx: &mut Context) -> GameResult<SoundManager> {
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let (tx, rx): (Sender<PlaybackMessage>, Receiver<PlaybackMessage>) = mpsc::channel();
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let host = cpal::default_host();
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let device = host.default_output_device().ok_or_else(|| AudioError(str!("Error initializing audio device.")))?;
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let config = device.default_output_config()?;
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let bnk = wave_bank::SoundBank::load_from(filesystem::open(ctx, "/builtin/organya-wavetable-doukutsu.bin")?)?;
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std::thread::spawn(move || {
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if let Err(err) = match config.sample_format() {
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cpal::SampleFormat::F32 => run::<f32>(rx, bnk, &device, &config.into()),
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cpal::SampleFormat::I16 => run::<i16>(rx, bnk, &device, &config.into()),
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cpal::SampleFormat::U16 => run::<u16>(rx, bnk, &device, &config.into()),
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} {
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log::error!("Something went wrong in audio thread: {}", err);
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}
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});
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Ok(SoundManager { tx: tx.clone(), prev_song_id: 0, current_song_id: 0 })
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}
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pub fn play_sfx(&mut self, id: u8) {
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let _ = self.tx.send(PlaybackMessage::PlaySample(id));
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}
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pub fn play_song(&mut self, song_id: usize, constants: &EngineConstants, settings: &Settings, ctx: &mut Context) -> GameResult {
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if self.current_song_id == song_id {
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return Ok(());
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}
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if song_id == 0 {
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log::info!("Stopping BGM");
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self.prev_song_id = self.current_song_id;
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self.current_song_id = 0;
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self.tx.send(PlaybackMessage::SaveState)?;
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self.tx.send(PlaybackMessage::Stop)?;
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} else if let Some(song_name) = constants.music_table.get(song_id) {
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let mut paths = constants.organya_paths.clone();
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paths.insert(0, "/Soundtracks/".to_owned() + &settings.soundtrack + "/");
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if let Some(soundtrack) = constants.soundtracks.get(&settings.soundtrack) {
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paths.insert(0, soundtrack.clone());
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}
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let songs_paths = paths.iter().map(|prefix| {
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[
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#[cfg(feature = "ogg-playback")]
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(SongFormat::OggMultiPart, vec![format!("{}{}_intro.ogg", prefix, song_name), format!("{}{}_loop.ogg", prefix, song_name)]),
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#[cfg(feature = "ogg-playback")]
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(SongFormat::OggSinglePart, vec![format!("{}{}.ogg", prefix, song_name)]),
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(SongFormat::Organya, vec![format!("{}{}.org", prefix, song_name)]),
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]
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});
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for songs in songs_paths {
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for (format, paths) in songs.iter().filter(|(_, paths)| paths.iter().all(|path| filesystem::exists(ctx, path))) {
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match format {
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SongFormat::Organya => {
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// we're sure that there's one element
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let path = unsafe { paths.get_unchecked(0) };
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match filesystem::open(ctx, path).map(|f| organya::Song::load_from(f)) {
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Ok(Ok(org)) => {
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log::info!("Playing Organya BGM: {} {}", song_id, path);
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self.prev_song_id = self.current_song_id;
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self.current_song_id = song_id;
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self.tx.send(PlaybackMessage::SaveState)?;
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self.tx.send(PlaybackMessage::PlayOrganyaSong(Box::new(org)))?;
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return Ok(());
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}
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Ok(Err(err)) | Err(err) => {
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log::warn!("Failed to load Organya BGM {}: {}", song_id, err);
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}
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}
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}
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#[cfg(feature = "ogg-playback")]
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SongFormat::OggSinglePart => {
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// we're sure that there's one element
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let path = unsafe { paths.get_unchecked(0) };
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match filesystem::open(ctx, path).map(|f| OggStreamReader::new(f).map_err(|e| GameError::ResourceLoadError(e.to_string()))) {
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Ok(Ok(song)) => {
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log::info!("Playing single part Ogg BGM: {} {}", song_id, path);
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self.prev_song_id = self.current_song_id;
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self.current_song_id = song_id;
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self.tx.send(PlaybackMessage::SaveState)?;
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self.tx.send(PlaybackMessage::PlayOggSongSinglePart(Box::new(song)))?;
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return Ok(());
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}
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Ok(Err(err)) | Err(err) => {
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log::warn!("Failed to load single part Ogg BGM {}: {}", song_id, err);
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}
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}
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}
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#[cfg(feature = "ogg-playback")]
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SongFormat::OggMultiPart => {
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// we're sure that there are two elements
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let path_intro = unsafe { paths.get_unchecked(0) };
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let path_loop = unsafe { paths.get_unchecked(1) };
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match (
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filesystem::open(ctx, path_intro).map(|f| OggStreamReader::new(f).map_err(|e| GameError::ResourceLoadError(e.to_string()))),
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filesystem::open(ctx, path_loop).map(|f| OggStreamReader::new(f).map_err(|e| GameError::ResourceLoadError(e.to_string()))),
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) {
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(Ok(Ok(song_intro)), Ok(Ok(song_loop))) => {
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log::info!("Playing multi part Ogg BGM: {} {} + {}", song_id, path_intro, path_loop);
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self.prev_song_id = self.current_song_id;
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self.current_song_id = song_id;
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self.tx.send(PlaybackMessage::SaveState)?;
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self.tx.send(PlaybackMessage::PlayOggSongMultiPart(Box::new(song_intro), Box::new(song_loop)))?;
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return Ok(());
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}
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(Ok(Err(err)), _) | (Err(err), _) | (_, Ok(Err(err))) | (_, Err(err)) => {
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log::warn!("Failed to load multi part Ogg BGM {}: {}", song_id, err);
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}
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}
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}
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}
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}
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}
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}
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Ok(())
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}
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pub fn save_state(&mut self) -> GameResult {
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self.tx.send(PlaybackMessage::SaveState)?;
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self.prev_song_id = self.current_song_id;
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Ok(())
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}
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pub fn restore_state(&mut self) -> GameResult {
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self.tx.send(PlaybackMessage::RestoreState)?;
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self.current_song_id = self.prev_song_id;
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Ok(())
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}
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pub fn set_speed(&mut self, speed: f32) -> GameResult {
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if speed <= 0.0 {
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return Err(InvalidValue(str!("Speed must be bigger than 0.0!")));
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}
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self.tx.send(PlaybackMessage::SetSpeed(speed))?;
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Ok(())
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}
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pub fn current_song(&self) -> usize {
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self.current_song_id
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}
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}
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enum PlaybackMessage {
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Stop,
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PlayOrganyaSong(Box<Song>),
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#[cfg(feature = "ogg-playback")]
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PlayOggSongSinglePart(Box<OggStreamReader<File>>),
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#[cfg(feature = "ogg-playback")]
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PlayOggSongMultiPart(Box<OggStreamReader<File>>, Box<OggStreamReader<File>>),
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PlaySample(u8),
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SetSpeed(f32),
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SaveState,
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RestoreState,
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}
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#[derive(PartialEq, Eq)]
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enum PlaybackState {
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Stopped,
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PlayingOrg,
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#[cfg(feature = "ogg-playback")]
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PlayingOgg,
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}
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enum PlaybackStateType {
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None,
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Organya(SavedOrganyaPlaybackState),
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#[cfg(feature = "ogg-playback")]
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Ogg(SavedOggPlaybackState),
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}
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fn run<T>(rx: Receiver<PlaybackMessage>, bank: SoundBank, device: &cpal::Device, config: &cpal::StreamConfig) -> GameResult
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where
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T: cpal::Sample,
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{
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let sample_rate = config.sample_rate.0 as f32;
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let channels = config.channels as usize;
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let mut state = PlaybackState::Stopped;
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let mut saved_state: PlaybackStateType = PlaybackStateType::None;
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let mut speed = 1.0;
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let mut org_engine = OrgPlaybackEngine::new();
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#[cfg(feature = "ogg-playback")]
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let mut ogg_engine = OggPlaybackEngine::new();
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let mut pixtone = PixTonePlayback::new();
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pixtone.create_samples();
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log::info!("Audio format: {} {}", sample_rate, channels);
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org_engine.set_sample_rate(sample_rate as usize);
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#[cfg(feature = "ogg-playback")]
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{
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org_engine.loops = usize::MAX;
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ogg_engine.set_sample_rate(sample_rate as usize);
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}
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let buf_size = sample_rate as usize * 10 / 1000;
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let mut bgm_buf = vec![0x8080; buf_size * 2];
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let mut pxt_buf = vec![0x8000; buf_size];
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let mut bgm_index = 0;
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let mut pxt_index = 0;
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let mut samples = 0;
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pixtone.mix(&mut pxt_buf, sample_rate);
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let err_fn = |err| eprintln!("an error occurred on stream: {}", err);
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let stream = device.build_output_stream(
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config,
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move |data: &mut [T], _: &cpal::OutputCallbackInfo| {
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loop {
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match rx.try_recv() {
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Ok(PlaybackMessage::PlayOrganyaSong(song)) => {
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if state == PlaybackState::Stopped {
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saved_state = PlaybackStateType::None;
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}
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org_engine.start_song(*song, &bank);
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for i in &mut bgm_buf[0..samples] {
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*i = 0x8080
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}
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samples = org_engine.render_to(&mut bgm_buf);
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bgm_index = 0;
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state = PlaybackState::PlayingOrg;
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}
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#[cfg(feature = "ogg-playback")]
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Ok(PlaybackMessage::PlayOggSongSinglePart(data)) => {
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if state == PlaybackState::Stopped {
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saved_state = PlaybackStateType::None;
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}
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ogg_engine.start_single(data);
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for i in &mut bgm_buf[0..samples] {
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*i = 0x8000
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}
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samples = ogg_engine.render_to(&mut bgm_buf);
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bgm_index = 0;
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state = PlaybackState::PlayingOgg;
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}
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#[cfg(feature = "ogg-playback")]
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Ok(PlaybackMessage::PlayOggSongMultiPart(data_intro, data_loop)) => {
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if state == PlaybackState::Stopped {
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saved_state = PlaybackStateType::None;
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}
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ogg_engine.start_multi(data_intro, data_loop);
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for i in &mut bgm_buf[0..samples] {
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*i = 0x8000
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}
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samples = ogg_engine.render_to(&mut bgm_buf);
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bgm_index = 0;
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state = PlaybackState::PlayingOgg;
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}
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Ok(PlaybackMessage::PlaySample(id)) => {
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pixtone.play_sfx(id);
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}
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Ok(PlaybackMessage::Stop) => {
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if state == PlaybackState::Stopped {
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saved_state = PlaybackStateType::None;
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}
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state = PlaybackState::Stopped;
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}
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Ok(PlaybackMessage::SetSpeed(new_speed)) => {
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assert!(new_speed > 0.0);
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speed = new_speed;
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#[cfg(feature = "ogg-playback")]
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ogg_engine.set_sample_rate((sample_rate / new_speed) as usize);
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org_engine.set_sample_rate((sample_rate / new_speed) as usize);
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}
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Ok(PlaybackMessage::SaveState) => {
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saved_state = match state {
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PlaybackState::Stopped => PlaybackStateType::None,
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PlaybackState::PlayingOrg => PlaybackStateType::Organya(org_engine.get_state()),
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#[cfg(feature = "ogg-playback")]
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PlaybackState::PlayingOgg => PlaybackStateType::Ogg(ogg_engine.get_state()),
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};
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}
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Ok(PlaybackMessage::RestoreState) => {
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let mut saved_state_loc = PlaybackStateType::None;
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std::mem::swap(&mut saved_state_loc, &mut saved_state);
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match saved_state_loc {
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PlaybackStateType::None => {}
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PlaybackStateType::Organya(playback_state) => {
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org_engine.set_state(playback_state, &bank);
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if state == PlaybackState::Stopped {
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org_engine.rewind();
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}
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for i in &mut bgm_buf[0..samples] {
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*i = 0x8080
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}
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samples = org_engine.render_to(&mut bgm_buf);
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bgm_index = 0;
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state = PlaybackState::PlayingOrg;
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}
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#[cfg(feature = "ogg-playback")]
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PlaybackStateType::Ogg(playback_state) => {
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ogg_engine.set_state(playback_state);
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if state == PlaybackState::Stopped {
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ogg_engine.rewind();
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}
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for i in &mut bgm_buf[0..samples] {
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*i = 0x8000
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}
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samples = ogg_engine.render_to(&mut bgm_buf);
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bgm_index = 0;
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state = PlaybackState::PlayingOgg;
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}
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}
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}
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Err(_) => {
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break;
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}
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}
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}
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for frame in data.chunks_mut(channels) {
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let (bgm_sample_l, bgm_sample_r): (u16, u16) = {
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if state == PlaybackState::Stopped {
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(0x8000, 0x8000)
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} else if bgm_index < samples {
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match state {
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PlaybackState::PlayingOrg => {
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let sample = bgm_buf[bgm_index];
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bgm_index += 1;
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((sample & 0xff) << 8, sample & 0xff00)
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}
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#[cfg(feature = "ogg-playback")]
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PlaybackState::PlayingOgg => {
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let samples = (bgm_buf[bgm_index], bgm_buf[bgm_index + 1]);
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bgm_index += 2;
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samples
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}
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_ => unreachable!(),
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}
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} else {
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for i in &mut bgm_buf[0..samples] {
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*i = 0x8080
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}
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match state {
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PlaybackState::PlayingOrg => {
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samples = org_engine.render_to(&mut bgm_buf);
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bgm_index = 1;
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let sample = bgm_buf[0];
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((sample & 0xff) << 8, sample & 0xff00)
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}
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#[cfg(feature = "ogg-playback")]
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PlaybackState::PlayingOgg => {
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samples = ogg_engine.render_to(&mut bgm_buf);
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bgm_index = 2;
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(bgm_buf[0], bgm_buf[1])
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}
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_ => unreachable!(),
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}
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}
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};
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let pxt_sample: u16 = pxt_buf[pxt_index];
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if pxt_index < (pxt_buf.len() - 1) {
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pxt_index += 1;
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} else {
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pxt_index = 0;
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for i in pxt_buf.iter_mut() {
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*i = 0x8000
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}
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pixtone.mix(&mut pxt_buf, sample_rate / speed);
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}
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if frame.len() >= 2 {
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let sample_l =
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clamp((((bgm_sample_l ^ 0x8000) as i16) as isize) + (((pxt_sample ^ 0x8000) as i16) as isize), -0x7fff, 0x7fff) as u16 ^ 0x8000;
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let sample_r =
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clamp((((bgm_sample_r ^ 0x8000) as i16) as isize) + (((pxt_sample ^ 0x8000) as i16) as isize), -0x7fff, 0x7fff) as u16 ^ 0x8000;
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frame[0] = Sample::from::<u16>(&sample_l);
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frame[1] = Sample::from::<u16>(&sample_r);
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} else {
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let sample = clamp(
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((((bgm_sample_l ^ 0x8000) as i16) + ((bgm_sample_r ^ 0x8000) as i16)) / 2) as isize + (((pxt_sample ^ 0x8000) as i16) as isize),
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-0x7fff,
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0x7fff,
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) as u16
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^ 0x8000;
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frame[0] = Sample::from::<u16>(&sample);
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}
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}
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},
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err_fn,
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)?;
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stream.play()?;
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let mut saved_state = true;
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loop {
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std::thread::sleep(Duration::from_millis(10));
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{
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let mutex = crate::GAME_SUSPENDED.lock().unwrap();
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let state = *mutex;
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if saved_state != state {
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saved_state = state;
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if state {
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if let Err(e) = stream.pause() {
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log::error!("Failed to pause the stream: {}", e);
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}
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} else {
|
|
if let Err(e) = stream.play() {
|
|
log::error!("Failed to unpause the stream: {}", e);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|