audio fix

src/audio.rs

@@ -40,12 +40,6 @@ impl AudioCallback for ApuSampler {
             // if we didn't have enough, decrease the ratio so we take more samples from the APU
             if l > target {
                 *b = b.split_off(target);
-                self.sample_ratio += 0.005;
-                // println!("raised ratio to {}", self.sample_ratio);
-            } else {
-                b.clear();
-                self.sample_ratio -= 0.05;
-                // println!("lowered ratio to {}", self.sample_ratio);
             }
         } else {
             println!("buffer empty!"); // happens when the callback fires twice between video frames

src/main.rs

@@ -79,11 +79,11 @@ fn main() -> Result<(), String> {
             if end_of_frame {
                 fps += 1; // keep track of how many frames we've rendered this second
                 draw_to_window(&mut texture, &mut canvas, &screen_buffer)?; // draw the buffer to the window with SDL
+                let mut b = apu_buffer.lock().unwrap(); // unlock mutex to the real buffer
+                b.append(&mut temp_buffer); // send this frame's audio data, emptying the temp buffer
                 let now = Instant::now();
                 // if we're running faster than 60Hz, kill time
                 if now < timer + Duration::from_millis(1000/60) {
-                    let mut b = apu_buffer.lock().unwrap(); // unlock mutex to the real buffer
-                    b.append(&mut temp_buffer); // send this frame's audio data, emptying the temp buffer
                     std::thread::sleep(timer + Duration::from_millis(1000/60) - now);
                 }
                 timer = Instant::now();