276 lines
9.1 KiB
Rust
276 lines
9.1 KiB
Rust
mod app;
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mod init;
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mod commands;
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mod engine;
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mod input;
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mod midi;
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mod model;
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mod page;
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mod services;
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mod settings;
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mod state;
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mod theme;
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mod views;
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mod widgets;
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use std::io;
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use std::path::PathBuf;
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use std::sync::atomic::Ordering;
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use std::sync::Arc;
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use std::time::{Duration, Instant};
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use clap::Parser;
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use crossterm::event::{self, DisableBracketedPaste, EnableBracketedPaste, Event};
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use crossterm::terminal::{
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disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen,
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};
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use crossterm::ExecutableCommand;
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use ratatui::prelude::CrosstermBackend;
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use ratatui::Terminal;
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use engine::{build_stream, AudioStreamConfig};
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use init::InitArgs;
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use input::{handle_key, InputContext, InputResult};
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#[derive(Parser)]
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#[command(name = "cagire", version, about = "Forth-based live coding sequencer")]
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struct Args {
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/// Directory containing audio samples to load (can be specified multiple times)
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#[arg(short, long)]
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samples: Vec<PathBuf>,
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/// Output audio device (name or index)
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#[arg(short, long)]
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output: Option<String>,
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/// Input audio device (name or index)
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#[arg(short, long)]
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input: Option<String>,
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/// Number of output channels
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#[arg(short, long)]
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channels: Option<u16>,
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/// Audio buffer size in samples
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#[arg(short, long)]
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buffer: Option<u32>,
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}
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fn main() -> io::Result<()> {
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#[cfg(unix)]
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engine::realtime::lock_memory();
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let args = Args::parse();
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let b = init::init(InitArgs {
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samples: args.samples,
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output: args.output,
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input: args.input,
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channels: args.channels,
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buffer: args.buffer,
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});
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let mut app = b.app;
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let link = b.link;
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let sequencer = b.sequencer;
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let playing = b.playing;
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let nudge_us = b.nudge_us;
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let metrics = b.metrics;
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let scope_buffer = b.scope_buffer;
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let spectrum_buffer = b.spectrum_buffer;
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let audio_sample_pos = b.audio_sample_pos;
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let sample_rate_shared = b.sample_rate_shared;
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let mut _stream = b.stream;
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let mut _analysis_handle = b.analysis_handle;
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let mut midi_rx = b.midi_rx;
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enable_raw_mode()?;
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io::stdout().execute(EnableBracketedPaste)?;
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io::stdout().execute(EnterAlternateScreen)?;
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let backend = CrosstermBackend::new(io::stdout());
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let mut terminal = Terminal::new(backend)?;
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terminal.clear()?;
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let mut last_frame = Instant::now();
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loop {
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if app.audio.restart_pending {
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app.audio.restart_pending = false;
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_stream = None;
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_analysis_handle = None;
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let new_audio_rx = sequencer.swap_audio_channel();
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midi_rx = sequencer.swap_midi_channel();
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let new_config = AudioStreamConfig {
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output_device: app.audio.config.output_device.clone(),
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channels: app.audio.config.channels,
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buffer_size: app.audio.config.buffer_size,
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max_voices: app.audio.config.max_voices,
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};
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let mut restart_samples = Vec::new();
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for path in &app.audio.config.sample_paths {
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let index = doux::sampling::scan_samples_dir(path);
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restart_samples.extend(index);
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}
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app.audio.config.sample_count = restart_samples.len();
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audio_sample_pos.store(0, Ordering::Relaxed);
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match build_stream(
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&new_config,
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new_audio_rx,
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Arc::clone(&scope_buffer),
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Arc::clone(&spectrum_buffer),
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Arc::clone(&metrics),
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restart_samples,
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Arc::clone(&audio_sample_pos),
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) {
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Ok((new_stream, info, new_analysis)) => {
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_stream = Some(new_stream);
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_analysis_handle = Some(new_analysis);
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app.audio.config.sample_rate = info.sample_rate;
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app.audio.config.host_name = info.host_name;
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app.audio.config.channels = info.channels;
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sample_rate_shared.store(info.sample_rate as u32, Ordering::Relaxed);
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app.audio.error = None;
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app.ui.set_status("Audio restarted".to_string());
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}
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Err(e) => {
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app.audio.error = Some(e.clone());
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app.ui.set_status(format!("Audio failed: {e}"));
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}
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}
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}
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app.playback.playing = playing.load(Ordering::Relaxed);
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while let Ok(midi_cmd) = midi_rx.try_recv() {
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match midi_cmd {
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engine::MidiCommand::NoteOn {
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device,
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channel,
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note,
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velocity,
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} => {
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app.midi.send_note_on(device, channel, note, velocity);
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}
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engine::MidiCommand::NoteOff {
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device,
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channel,
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note,
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} => {
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app.midi.send_note_off(device, channel, note);
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}
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engine::MidiCommand::CC {
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device,
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channel,
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cc,
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value,
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} => {
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app.midi.send_cc(device, channel, cc, value);
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}
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engine::MidiCommand::PitchBend {
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device,
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channel,
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value,
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} => {
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app.midi.send_pitch_bend(device, channel, value);
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}
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engine::MidiCommand::Pressure {
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device,
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channel,
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value,
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} => {
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app.midi.send_pressure(device, channel, value);
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}
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engine::MidiCommand::ProgramChange {
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device,
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channel,
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program,
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} => {
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app.midi.send_program_change(device, channel, program);
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}
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engine::MidiCommand::Clock { device } => app.midi.send_realtime(device, 0xF8),
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engine::MidiCommand::Start { device } => app.midi.send_realtime(device, 0xFA),
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engine::MidiCommand::Stop { device } => app.midi.send_realtime(device, 0xFC),
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engine::MidiCommand::Continue { device } => app.midi.send_realtime(device, 0xFB),
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}
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}
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{
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app.metrics.active_voices = metrics.active_voices.load(Ordering::Relaxed) as usize;
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app.metrics.peak_voices = app.metrics.peak_voices.max(app.metrics.active_voices);
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app.metrics.cpu_load = metrics.load.get_load();
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app.metrics.schedule_depth = metrics.schedule_depth.load(Ordering::Relaxed) as usize;
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app.metrics.scope = scope_buffer.read();
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(app.metrics.peak_left, app.metrics.peak_right) = scope_buffer.peaks();
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app.metrics.spectrum = spectrum_buffer.read();
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app.metrics.nudge_ms = nudge_us.load(Ordering::Relaxed) as f64 / 1000.0;
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}
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let seq_snapshot = sequencer.snapshot();
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app.metrics.event_count = seq_snapshot.event_count;
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app.flush_queued_changes(&sequencer.cmd_tx);
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app.flush_dirty_patterns(&sequencer.cmd_tx);
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let had_event = event::poll(Duration::from_millis(
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app.audio.config.refresh_rate.millis(),
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))?;
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if had_event {
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match event::read()? {
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Event::Key(key) => {
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let mut ctx = InputContext {
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app: &mut app,
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link: &link,
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snapshot: &seq_snapshot,
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playing: &playing,
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audio_tx: &sequencer.audio_tx,
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seq_cmd_tx: &sequencer.cmd_tx,
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nudge_us: &nudge_us,
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};
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if let InputResult::Quit = handle_key(&mut ctx, key) {
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break;
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}
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}
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Event::Paste(text) => {
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if matches!(app.ui.modal, state::Modal::Editor) {
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app.editor_ctx.editor.insert_str(&text);
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if app.editor_ctx.show_stack {
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services::stack_preview::update_cache(&app.editor_ctx);
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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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state::effects::tick_effects(&mut app.ui, app.page);
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let elapsed = last_frame.elapsed();
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last_frame = Instant::now();
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let effects_active = app.ui.effects.borrow().is_running()
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|| app.ui.modal_fx.borrow().is_some()
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|| app.ui.title_fx.borrow().is_some();
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if app.playback.playing || had_event || app.ui.show_title || effects_active {
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if app.ui.show_title {
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app.ui.sparkles.tick(terminal.get_frame().area());
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}
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terminal.draw(|frame| views::render(frame, &app, &link, &seq_snapshot, elapsed))?;
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}
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}
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disable_raw_mode()?;
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io::stdout().execute(DisableBracketedPaste)?;
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io::stdout().execute(LeaveAlternateScreen)?;
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sequencer.shutdown();
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Ok(())
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}
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