X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=sound.rs;fp=sound.rs;h=80afd5cbf37436a5f4090b39eba68c639afe26e3;hb=af94c9fcbc1e73cc008b090d6355a35eda7aea70;hp=0000000000000000000000000000000000000000;hpb=5a3d91b5cfa87ea798ec1d103bf3129551cc8e7e;p=mandelwow.git

diff --git a/sound.rs b/sound.rs
new file mode 100644
index 0000000..80afd5c
--- /dev/null
+++ b/sound.rs
@@ -0,0 +1,57 @@
+#[macro_use]
+
+use libxm::XMContext;
+use sdl2;
+use sdl2::audio::{AudioCallback, AudioDevice, AudioSpecDesired};
+use std::fs::File;
+use std::io::Read;
+
+
+struct XmCallback {
+    xm: XMContext,
+}
+
+impl AudioCallback for XmCallback {
+    type Channel = f32;
+
+    fn callback(&mut self, out: &mut [f32]) {
+        self.xm.generate_samples(out);
+    }
+}
+
+pub struct SoundPlayer {
+    _device: AudioDevice<XmCallback>,
+}
+
+fn play_xm(raw_xm: &[u8]) -> SoundPlayer {
+    let sdl_context = sdl2::init().unwrap();
+    let sdl_audio = sdl_context.audio().unwrap();
+
+    let sample_rate = 48000u32;
+    let desired_spec = AudioSpecDesired {
+        freq: Some(sample_rate as i32),
+        channels: Some(2u8),
+        samples: None,
+    };
+    let device = sdl_audio.open_playback(None, &desired_spec, |actual_spec| {
+        let xm = XMContext::new(&raw_xm, actual_spec.freq as u32).unwrap();
+
+        XmCallback {
+            xm: xm,
+        }
+    }).unwrap();
+
+    device.resume();
+
+    SoundPlayer {
+        _device: device,
+    }
+}
+
+pub fn start() -> SoundPlayer {
+    let mut xm = Vec::new();
+    let filename = "flora.xm";
+    File::open(filename).unwrap()
+        .read_to_end(&mut xm).unwrap();
+    return play_xm(&xm);
+}