1 files changed, 26 insertions, 1 deletions
diff --git a/src/synth/noise.rs b/src/synth/noise.rs
index 4d90f3b..68c120f 100644
--- a/src/synth/noise.rs
+++ b/src/synth/noise.rs
@@ -1,7 +1,8 @@
 use std::mem;
 use super::*;
 
-use ::rand::{XorShiftRng, Rng};
+use ::rand::{XorShiftRng, Rng, SeedableRng};
+use ::rand::os::OsRng;
 
 #[derive(Debug)]
 pub struct Noise {
@@ -19,8 +20,32 @@ impl Generator for Noise {
 
         &self.buf
     }
+    fn buffer<'a>(&'a self) -> &'a SampleBuffer { &self.buf }
     fn set_buffer(&mut self, buf: SampleBuffer) -> SampleBuffer {
         mem::replace(&mut self.buf, buf)
     }
 }
 
+static mut _rand_gen: Option<OsRng> = None;
+
+pub struct NoiseFactory;
+
+impl GeneratorFactory for NoiseFactory {
+    fn new(&self, params: &mut FactoryParameters) -> Result<GenBox, GenFactoryError> {
+        if unsafe { &_rand_gen }.is_none() {
+            unsafe {_rand_gen = Some(OsRng::new().expect("Couldn't initialize OS random")); }
+        }
+
+        let mut seed: [u32; 4] = Default::default();
+        for i in seed.iter_mut() {
+            *i = unsafe { &mut _rand_gen }.as_mut().unwrap().next_u32();
+        }
+
+        Ok(Box::new(Noise {
+            rng: XorShiftRng::from_seed(seed),
+            buf: SampleBuffer::new(params.env.default_buffer_size),
+        }))
+    }
+}
+
+pub static Factory: NoiseFactory = NoiseFactory;