add FixtureDriver trait and StripeDriver

src/main.rs

@@ -63,13 +63,19 @@ impl ColorGrid for TestAnimation {
     }
 }
 
+trait FixtureDriver {
+    fn send(&self, pixels: &Vec<Rgb<u8>>);
+}
+
 struct Fixture {
     resolution: Vector2<u32>,
     position: Vector2<f32>,
     rotation: f32,
     scale: f32,
     brightness: f32,
-    buffer: Vec< Rgb<u8> >
+    buffer: Vec< Rgb<u8> >,
+
+    driver: Option<Box<dyn FixtureDriver>>
 }
 
 impl Fixture {
@@ -80,7 +86,8 @@ impl Fixture {
             rotation: 0.0,
             scale: 0.01,
             brightness: 0.8,
-            buffer: Vec::new()
+            buffer: Vec::new(),
+            driver: None
         };
         fixture.buffer.resize(
             (fixture.resolution.x*fixture.resolution.y) as usize,
@@ -95,7 +102,8 @@ impl Fixture {
             rotation: 0.0,
             scale: 0.03,
             brightness: 0.8,
-            buffer: Vec::new()
+            buffer: Vec::new(),
+            driver: None
         };
         fixture.buffer.resize(
             (fixture.resolution.x*fixture.resolution.y) as usize,
@@ -104,6 +112,11 @@ impl Fixture {
         fixture
     }
 
+    pub fn with_driver(mut self, driver: Box<dyn FixtureDriver>) -> Self {
+        self.driver = Some(driver);
+        self
+    }
+
     fn offset(mut self, offset: Vector2<f32>) -> Self {
         self.position += offset;
         self
@@ -157,6 +170,14 @@ impl LightingSetup {
         }
     }
 
+    fn update_outputs(&mut self) {
+        for fixture in self.fixtures.iter() {
+            if let Some(driver) = fixture.driver.as_ref() {
+                driver.send( &fixture.buffer );
+            }
+        }
+    }
+
     fn draw_preview(
         &self,
         buffer: &mut softbuffer::Buffer<'_, Arc<winit::window::Window>, Arc<winit::window::Window>>,
@@ -215,6 +236,44 @@ impl LightingSetup {
     }
 }
 
+struct StripeDriver {
+    socket: Arc<RwLock<std::net::UdpSocket>>,
+    addr: String
+}
+
+impl StripeDriver {
+    fn new(addr: &str, socket: Arc<RwLock<std::net::UdpSocket>>) -> Self {
+        StripeDriver {
+            addr: addr.into(),
+            socket
+        }
+    }
+}
+
+impl FixtureDriver for StripeDriver {
+    fn send(&self, pixels: &Vec<Rgb<u8>>) {
+        const STRIPE_LEN : usize = 72;
+        let mut buf = [0 as u8; STRIPE_LEN*3];
+
+        for x in 0 .. STRIPE_LEN {
+            buf[x*3+0] = pixels[x].green();
+            buf[x*3+1] = pixels[x].red();
+            buf[x*3+2] = pixels[x].blue();
+        }
+
+        self.socket.write().unwrap().send_to(&buf, &self.addr);
+
+        let mut  rbuf = [0 as u8; 8];
+        match
+            self.socket.write().unwrap().recv(&mut rbuf) {
+                Ok(_) => {}
+                Err(_) => {
+                    eprintln!("missing response from stripe");
+                }
+            }
+    }
+}
+
 #[async_std::main]
 async fn main() {
     let event_loop = EventLoop::new().unwrap();
@@ -224,13 +283,30 @@ async fn main() {
 
     let dim = Arc::new(Mutex::new((1 as u32,1 as u32)));
 
+    let socket = Arc::new(RwLock::new(std::net::UdpSocket::bind("0.0.0.0:4210").expect("failed to bind UDP socket")));
+    socket.write().unwrap().set_read_timeout(Some(std::time::Duration::from_millis(500)));
+    socket.write().unwrap().set_write_timeout(Some(std::time::Duration::from_millis(50)));
+
     let mut lighting_setup = LightingSetup::new(
         vec![
             Fixture::new_matrix(),
-            Fixture::new_stripe().offset(Vector2::new(-0.5, 0.0)),            
-            Fixture::new_stripe().offset(Vector2::new(-0.4, 0.0)),
-            Fixture::new_stripe().offset(Vector2::new( 0.4, 0.0)),
-            Fixture::new_stripe().offset(Vector2::new( 0.5, 0.0))
+//                .with_driver( Box::new(MatrixTcpDriver::new("ip:port")) ),
+
+            Fixture::new_stripe()
+                .with_driver( Box::new(StripeDriver::new("192.168.0.111:4210", socket.clone())) )
+                .offset(Vector2::new(-0.5, 0.0)),
+
+            Fixture::new_stripe()
+                .with_driver( Box::new(StripeDriver::new("192.168.0.112:4210", socket.clone())) )
+                .offset(Vector2::new(-0.4, 0.0)),
+
+            Fixture::new_stripe()
+                .with_driver( Box::new(StripeDriver::new("192.168.0.113:4210", socket.clone())) )
+                .offset(Vector2::new(0.4, 0.0)),
+
+            Fixture::new_stripe()
+                .with_driver( Box::new(StripeDriver::new("192.168.0.114:4210", socket.clone())))
+                .offset(Vector2::new(0.5, 0.0))
         ]
     );
 
@@ -243,6 +319,7 @@ async fn main() {
 
         *lighting_setup.t.write().unwrap() = tcur - tbegin;
         lighting_setup.update_buffers();
+        lighting_setup.update_outputs();
 
         match event {
             Event::WindowEvent { window_id, event: WindowEvent::RedrawRequested } if window_id == window.id() => {