From edf5f17e9cb3ce18dab539b2b4ed853b7606c3f7 Mon Sep 17 00:00:00 2001
From: ceemos <ceemos@estrogen.zone>
Date: Sat, 15 Feb 2025 04:10:27 +0100
Subject: feat: basic audio

---
 .vscode/settings.json |   3 ++-
 src/main.rs           |  45 +++++++++++++++++++++++++++++++++++++++++++++
 uwudhd.mod            | Bin 0 -> 6148 bytes
 3 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 uwudhd.mod

diff --git a/.vscode/settings.json b/.vscode/settings.json
index ff30c44..a600de3 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,4 @@
 {
-    "editor.tabSize": 2
+    "editor.tabSize": 2,
+    "editor.formatOnSave": true
 }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index edd7f87..7d42d2f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,6 +7,7 @@ mod interpolation;
 mod render;
 pub mod vendored;
 
+use std::io::{BufWriter, Write};
 use std::time::{Duration, SystemTime};
 
 use sdl2::{event::Event, keyboard::Keycode};
@@ -14,8 +15,52 @@ use sdl2::{event::Event, keyboard::Keycode};
 #[cfg(all(not(feature = "notimeout"), not(feature = "32k")))]
 const TIMEOUT_DEATH: f64 = render::JUST_DVD + 20.0;
 
+use sdl2::audio::{AudioCallback, AudioSpecDesired};
+use vendored::micromod::MmC2r;
+
+struct Music<'a> {
+  mm: MmC2r<'a>,
+}
+
+impl<'a> AudioCallback for Music<'a> {
+  type Channel = f32;
+
+  fn callback(&mut self, out_f: &mut [f32]) {
+    let len = out_f.len();
+    println!("{len}");
+    let mut out = [0; 32768];
+    if !self.mm.get_audio(&mut out, len as isize) {
+      return;
+    }
+    for i in 0..len {
+      out_f[i] = f32::from(out[i]) / f32::from(0x7FFF as i16);
+    }
+  }
+}
+
 pub fn main() {
   let sdl_context = sdl2::init().unwrap();
+
+  let audio_subsystem = sdl_context.audio().unwrap();
+
+  let desired_spec = AudioSpecDesired {
+    freq: Some(48_000),
+    channels: Some(1),
+    samples: Some(8192 as u16),
+  };
+
+  let device = audio_subsystem
+    .open_playback(None, &desired_spec, |spec| {
+      // initialize the audio callback
+      Music {
+        mm: MmC2r::new(include_bytes!("../uwudhd.mod"), spec.freq as isize).unwrap(),
+      }
+    })
+    .unwrap();
+
+  // Start playback
+  device.resume();
+
   let video_subsystem = sdl_context.video().unwrap();
 
   let mut builder = video_subsystem.window("Cosin25 Invite", 512, 256);
diff --git a/uwudhd.mod b/uwudhd.mod
new file mode 100644
index 0000000..ea3e090
Binary files /dev/null and b/uwudhd.mod differ
-- 
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