Basic output system

crates/minifb_host/Cargo.toml

@@ -6,3 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+minifb = "0.25.0"
+viperid = { path = "../.." }

crates/minifb_host/src/lib.rs

@@ -0,0 +1,27 @@
+use minifb::{Window, WindowOptions};
+use viperid::{Device, VResult, SCREEN_H, SCREEN_W};
+
+pub fn host(
+    device: Device,
+    mut update: impl FnMut() -> VResult<()>
+) -> VResult<()> {
+    let mut window = Window::new(
+        "viperid",
+        SCREEN_W,
+        SCREEN_H,
+        WindowOptions::default()
+    )?;
+
+    // limit to 60FPS
+    window.limit_update_rate(Some(std::time::Duration::from_micros(16600)));
+
+    let mut buffer: Vec<u32> = vec![0; SCREEN_W * SCREEN_H];
+    while window.is_open() {
+        update()?;
+        device.shared.screen.to_bitmap(&mut buffer);
+
+        window.update_with_buffer(&buffer, SCREEN_W, SCREEN_H)?;
+    }
+
+    Ok(())
+}